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Comparing deliantra/server/common/object.C (file contents):
Revision 1.59 by root, Wed Dec 6 13:59:00 2006 UTC vs.
Revision 1.311 by root, Sat Jan 16 13:41:37 2010 UTC

1	/*	1	/*
2	CrossFire, A Multiplayer game for X-windows	2	* This file is part of Deliantra, the Roguelike Realtime MMORPG.
3		3	*
		4	* Copyright (©) 2005,2006,2007,2008,2009,2010 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
4	Copyright (C) 2001 Mark Wedel & Crossfire Development Team	5	* Copyright (©) 2001,2007 Mark Wedel & Crossfire Development Team
5	Copyright (C) 1992 Frank Tore Johansen	6	* Copyright (©) 1992,2007 Frank Tore Johansen
6		7	*
7	This program is free software; you can redistribute it and/or modify	8	* Deliantra is free software: you can redistribute it and/or modify it under
8	it under the terms of the GNU General Public License as published by	9	* the terms of the Affero GNU General Public License as published by the
9	the Free Software Foundation; either version 2 of the License, or	10	* Free Software Foundation, either version 3 of the License, or (at your
10	(at your option) any later version.	11	* option) any later version.
11		12	*
12	This program is distributed in the hope that it will be useful,	13	* This program is distributed in the hope that it will be useful,
13	but WITHOUT ANY WARRANTY; without even the implied warranty of	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15	GNU General Public License for more details.	16	* GNU General Public License for more details.
16		17	*
17	You should have received a copy of the GNU General Public License	18	* You should have received a copy of the Affero GNU General Public License
18	along with this program; if not, write to the Free Software	19	* and the GNU General Public License along with this program. If not, see
19	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.	20	* <http://www.gnu.org/licenses/>.
20		21	*
21	The authors can be reached via e-mail at <crossfire@schmorp.de>	22	* The authors can be reached via e-mail to <support@deliantra.net>
22	*/	23	*/
23		24
24	/* Eneq(@csd.uu.se): Added weight-modifiers in environment of objects.
25	sub/add_weight will transcend the environment updating the carrying
26	variable. */
27	#include <global.h>	25	#include <global.h>
28	#include <stdio.h>	26	#include <stdio.h>
29	#include <sys/types.h>	27	#include <sys/types.h>
30	#include <sys/uio.h>	28	#include <sys/uio.h>
31	#include <object.h>	29	#include <object.h>
32	#include <funcpoint.h>	30	#include <sproto.h>
33	#include <loader.h>
34		31
35	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 ())
		485	if (pl != this) // player is handled lazily
		486	esrv_update_item (UPD_WEIGHT, pl, this);
		487	}
344	}	488	}
345		489
346	/**	490	/*
347	* Return the outermost environment object for a given object.	491	* Used by: Server DM commands: dumpbelow, dump. Some error messages.
348	*/	492	*/
349
350	object *
351	object_get_env_recursive (object *op)
352	{
353	while (op->env != NULL)
354	op = op->env;
355	return op;
356	}
357
358	/*
359	* Eneq(@csd.uu.se): Since we can have items buried in a character we need
360	* a better check. We basically keeping traversing up until we can't
361	* or find a player.
362	*/
363
364	object *
365	is_player_inv (object *op)
366	{
367	for (; op != NULL && op->type != PLAYER; op = op->env)
368	if (op->env == op)
369	op->env = NULL;
370	return op;
371	}
372
373	/*
374	* Used by: Crossedit: dump. Server DM commands: dumpbelow, dump.
375	* Some error messages.
376	* The result of the dump is stored in the static global errmsg array.
377	*/
378
379	char *	493	char *
380	dump_object (object *op)	494	dump_object (object *op)
381	{	495	{
382	if (!op)	496	if (!op)
383	return strdup ("[NULLOBJ]");	497	return strdup ("[NULLOBJ]");
384		498
385	object_freezer freezer;	499	object_freezer freezer;
386	save_object (freezer, op, 3);	500	op->write (freezer);
387	return freezer.as_string ();	501	return freezer.as_string ();
388	}	502	}
389		503
390	/*	504	char *
391	* get_nearest_part(multi-object, object 2) returns the part of the	505	object::as_string ()
392	* multi-object 1 which is closest to the second object.
393	* If it's not a multi-object, it is returned.
394	*/
395
396	object *
397	get_nearest_part (object *op, const object *pl)
398	{	506	{
399	object *tmp, *closest;	507	return dump_object (this);
400	int last_dist, i;
401
402	if (op->more == NULL)
403	return op;
404	for (last_dist = distance (op, pl), closest = op, tmp = op->more; tmp != NULL; tmp = tmp->more)
405	if ((i = distance (tmp, pl)) < last_dist)
406	closest = tmp, last_dist = i;
407	return closest;
408	}	508	}
409		509
410	/*	510	/*
411	* 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.
412	*/	513	*/
413
414	object *	514	object *
415	find_object (tag_t i)	515	find_object (tag_t i)
416	{	516	{
417	for (object *op = object::first; op; op = op->next)	517	for_all_objects (op)
418	if (op->count == i)	518	if (op->count == i)
419	return op;	519	return op;
420		520
421	return 0;	521	return 0;
422	}	522	}
423		523
424	/*	524	/*
425	* Returns the first object which has a name equal to the argument.	525	* Returns the first object which has a name equal to the argument.
426	* Used only by the patch command, but not all that useful.	526	* Used only by the patch command, but not all that useful.
427	* Enables features like "patch <name-of-other-player> food 999"	527	* Enables features like "patch <name-of-other-player> food 999"
428	*/	528	*/
429
430	object *	529	object *
431	find_object_name (const char *str)	530	find_object_name (const char *str)
432	{	531	{
433	shstr_cmp str_ (str);	532	shstr_cmp str_ (str);
434	object *op;
435		533
436	for (op = object::first; op != NULL; op = op->next)	534	if (str_)
		535	for_all_objects (op)
437	if (op->name == str_)	536	if (op->name == str_)
438	break;	537	return op;
439		538
440	return op;	539	return 0;
441	}
442
443	void
444	free_all_object_data ()
445	{
446	LOG (llevDebug, "%d allocated objects\n", nrofallocobjects);
447	}	540	}
448		541
449	/*	542	/*
450	* Sets the owner and sets the skill and exp pointers to owner's current	543	* Sets the owner and sets the skill and exp pointers to owner's current
451	* skill and experience objects.	544	* skill and experience objects.
		545	* ACTUALLY NO! investigate! TODO
452	*/	546	*/
453	void	547	void
454	object::set_owner (object *owner)	548	object::set_owner (object *owner)
455	{	549	{
		550	// allow objects which own objects
456	if (!owner)	551	if (owner)
457	return;
458
459	/* next line added to allow objects which own objects */
460	/* Add a check for ownercounts in here, as I got into an endless loop
461	* with the fireball owning a poison cloud which then owned the
462	* fireball. I believe that was caused by one of the objects getting
463	* freed and then another object replacing it. Since the ownercounts
464	* didn't match, this check is valid and I believe that cause is valid.
465	*/
466	while (owner->owner)	552	while (owner->owner)
467	owner = owner->owner;	553	owner = owner->owner;
		554
		555	if (flag [FLAG_FREED])
		556	{
		557	LOG (llevError | logBacktrace, "tried to set owner of %s to %s\n", debug_desc (), owner->debug_desc ());
		558	return;
		559	}
468		560
469	this->owner = owner;	561	this->owner = owner;
		562	}
		563
		564	int
		565	object::slottype () const
		566	{
		567	if (type == SKILL)
		568	{
		569	if (IS_COMBAT_SKILL (subtype)) return slot_combat;
		570	if (IS_RANGED_SKILL (subtype)) return slot_ranged;
		571	}
		572	else
		573	{
		574	if (slot [body_combat].info) return slot_combat;
		575	if (slot [body_range ].info) return slot_ranged;
		576	}
		577
		578	return slot_none;
		579	}
		580
		581	bool
		582	object::change_weapon (object *ob)
		583	{
		584	if (current_weapon == ob)
		585	return true;
		586
		587	if (chosen_skill)
		588	chosen_skill->flag [FLAG_APPLIED] = false;
		589
		590	current_weapon = ob;
		591	chosen_skill = !ob || ob->type == SKILL ? ob : find_skill_by_name (this, ob->skill);
		592
		593	if (chosen_skill)
		594	chosen_skill->flag [FLAG_APPLIED] = true;
		595
		596	update_stats ();
		597
		598	if (ob)
		599	{
		600	// now check wether any body locations became invalid, in which case
		601	// we cannot apply the weapon at the moment.
		602	for (int i = 0; i < NUM_BODY_LOCATIONS; ++i)
		603	if (slot[i].used < 0)
		604	{
		605	current_weapon = chosen_skill = 0;
		606	update_stats ();
		607
		608	new_draw_info_format (NDI_UNIQUE, 0, this,
		609	"You try to balance all your items at once, "
		610	"but the %s is just too much for your body. "
		611	"[You need to unapply some items first - use the 'body' command to see "
		612	"how many items you cna wera on a specific body part.]", &ob->name);
		613	return false;
		614	}
		615
		616	//new_draw_info_format (NDI_UNIQUE, 0, this, "You switch to your %s.", &ob->name);
		617	}
		618	else
		619	;//new_draw_info_format (NDI_UNIQUE, 0, this, "You unwield your weapons.");
		620
		621	if (ob && !ob->flag [FLAG_APPLIED] && ob->type != SPELL)
		622	{
		623	LOG (llevError | logBacktrace, "%s changed to unapplied weapon %s",
		624	&name, ob->debug_desc ());
		625	return false;
		626	}
		627
		628	return true;
470	}	629	}
471		630
472	/* Zero the key_values on op, decrementing the shared-string	631	/* Zero the key_values on op, decrementing the shared-string
473	* refcounts and freeing the links.	632	* refcounts and freeing the links.
474	*/	633	*/
475	static void	634	static void
476	free_key_values (object *op)	635	free_key_values (object *op)
477	{	636	{
478	for (key_value *i = op->key_values; i != 0;)	637	for (key_value *i = op->key_values; i; )
479	{	638	{
480	key_value *next = i->next;	639	key_value *next = i->next;
481	delete i;	640	delete i;
482		641
483	i = next;	642	i = next;
484	}	643	}
485		644
486	op->key_values = 0;	645	op->key_values = 0;
487	}	646	}
488		647
489	void object::clear ()
490	{
491	attachable_base::clear ();
492
493	free_key_values (this);
494
495	owner = 0;
496	name = 0;
497	name_pl = 0;
498	title = 0;
499	race = 0;
500	slaying = 0;
501	skill = 0;
502	msg = 0;
503	lore = 0;
504	custom_name = 0;
505	materialname = 0;
506	contr = 0;
507	below = 0;
508	above = 0;
509	inv = 0;
510	container = 0;
511	env = 0;
512	more = 0;
513	head = 0;
514	map = 0;
515	active_next = 0;
516	active_prev = 0;
517
518	memset (static_cast<object_pod *>(this), 0, sizeof (object_pod));
519
520	SET_FLAG (this, FLAG_REMOVED);
521
522	/* What is not cleared is next, prev, and count */
523
524	expmul = 1.0;
525	face = blank_face;
526
527	if (settings.casting_time)
528	casting_time = -1;
529	}
530
531	void object::clone (object *destination)
532	{
533	*(object_copy *)destination = *this;
534	*(object_pod *)destination = *this;
535
536	if (self || cb)
537	INVOKE_OBJECT (CLONE, this, ARG_OBJECT (destination));
538	}
539
540	/*	648	/*
541	* copy object first frees everything allocated by the second object,	649	* copy_to first frees everything allocated by the dst object,
542	* and then copies the contends of the first object into the second	650	* and then copies the contents of itself into the second
543	* object, allocating what needs to be allocated. Basically, any	651	* object, allocating what needs to be allocated. Basically, any
544	* data that is malloc'd needs to be re-malloc/copied. Otherwise,	652	* data that is malloc'd needs to be re-malloc/copied. Otherwise,
545	* if the first object is freed, the pointers in the new object	653	* if the first object is freed, the pointers in the new object
546	* will point at garbage.	654	* will point at garbage.
547	*/	655	*/
548	void	656	void
549	copy_object (object *op2, object *op)	657	object::copy_to (object *dst)
550	{	658	{
551	bool is_freed = QUERY_FLAG (op, FLAG_FREED);	659	dst->remove ();
552	bool is_removed = QUERY_FLAG (op, FLAG_REMOVED);	660	*(object_copy *)dst = *this;
553		661	dst->flag [FLAG_REMOVED] = true;
554	op2->clone (op);
555
556	if (is_freed)
557	SET_FLAG (op, FLAG_FREED);
558
559	if (is_removed)
560	SET_FLAG (op, FLAG_REMOVED);
561
562	if (op2->speed < 0)
563	op->speed_left = op2->speed_left - RANDOM () % 200 / 100.0;
564		662
565	/* Copy over key_values, if any. */	663	/* Copy over key_values, if any. */
566	if (op2->key_values)	664	if (key_values)
567	{	665	{
568	key_value *tail = 0;	666	key_value *tail = 0;
569	key_value *i;
570
571	op->key_values = 0;	667	dst->key_values = 0;
572		668
573	for (i = op2->key_values; i; i = i->next)	669	for (key_value *i = key_values; i; i = i->next)
574	{	670	{
575	key_value *new_link = new key_value;	671	key_value *new_link = new key_value;
576		672
577	new_link->next = 0;	673	new_link->next = 0;
578	new_link->key = i->key;	674	new_link->key = i->key;
579	new_link->value = i->value;	675	new_link->value = i->value;
580		676
581	/* Try and be clever here, too. */	677	/* Try and be clever here, too. */
582	if (!op->key_values)	678	if (!dst->key_values)
583	{	679	{
584	op->key_values = new_link;	680	dst->key_values = new_link;
585	tail = new_link;	681	tail = new_link;
586	}	682	}
587	else	683	else
588	{	684	{
589	tail->next = new_link;	685	tail->next = new_link;
590	tail = new_link;	686	tail = new_link;
591	}	687	}
592	}	688	}
593	}	689	}
594		690
595	update_ob_speed (op);	691	dst->activate ();
		692	}
		693
		694	void
		695	object::instantiate ()
		696	{
		697	if (!uuid.seq) // HACK
		698	uuid = UUID::gen ();
		699
		700	// TODO: unclean state changes, should nt be done in copy_to AND instantiate
		701	if (flag [FLAG_RANDOM_SPEED] && speed)
		702	speed_left = - speed - rndm (); // TODO animation
		703	else
		704	speed_left = -1.;
		705
		706	/* copy the body_info to the body_used - this is only really
		707	* need for monsters, but doesn't hurt to do it for everything.
		708	* by doing so, when a monster is created, it has good starting
		709	* values for the body_used info, so when items are created
		710	* for it, they can be properly equipped.
		711	*/
		712	for (int i = NUM_BODY_LOCATIONS; i--; )
		713	slot[i].used = slot[i].info;
		714
		715	attachable::instantiate ();
		716	}
		717
		718	object *
		719	object::clone ()
		720	{
		721	object *neu = create ();
		722	copy_to (neu);
		723
		724	// TODO: unclean state changes, should not be done in clone AND instantiate
		725	if (neu->flag [FLAG_RANDOM_SPEED] && neu->speed)
		726	neu->speed_left = - neu->speed - rndm (); // TODO animation
		727
		728	neu->map = map; // not copied by copy_to
		729	return neu;
596	}	730	}
597		731
598	/*	732	/*
599	* If an object with the IS_TURNABLE() flag needs to be turned due	733	* If an object with the IS_TURNABLE() flag needs to be turned due
600	* to the closest player being on the other side, this function can	734	* to the closest player being on the other side, this function can
601	* be called to update the face variable, _and_ how it looks on the map.	735	* be called to update the face variable, _and_ how it looks on the map.
602	*/	736	*/
603
604	void	737	void
605	update_turn_face (object *op)	738	update_turn_face (object *op)
606	{	739	{
607	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || op->arch == NULL)	740	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || !op->arch)
608	return;	741	return;
		742
609	SET_ANIMATION (op, op->direction);	743	SET_ANIMATION (op, op->direction);
610	update_object (op, UP_OBJ_FACE);	744	update_object (op, UP_OBJ_FACE);
611	}	745	}
612		746
613	/*	747	/*
614	* Updates the speed of an object. If the speed changes from 0 to another	748	* Updates the speed of an object. If the speed changes from 0 to another
615	* value, or vice versa, then add/remove the object from the active list.	749	* value, or vice versa, then add/remove the object from the active list.
616	* This function needs to be called whenever the speed of an object changes.	750	* This function needs to be called whenever the speed of an object changes.
617	*/	751	*/
618	void	752	void
619	update_ob_speed (object *op)	753	object::set_speed (float speed)
620	{	754	{
621	extern int arch_init;	755	this->speed = speed;
622		756
623	/* No reason putting the archetypes objects on the speed list,	757	if (has_active_speed ())
624	* since they never really need to be updated.	758	activate ();
625	*/
626
627	if (QUERY_FLAG (op, FLAG_FREED) && op->speed)
628	{
629	LOG (llevError, "Object %s is freed but has speed.\n", &op->name);
630	#ifdef MANY_CORES
631	abort ();
632	#else
633	op->speed = 0;
634	#endif
635	}
636
637	if (arch_init)
638	return;
639
640	if (FABS (op->speed) > MIN_ACTIVE_SPEED)
641	{
642	/* If already on active list, don't do anything */
643	if (op->active_next || op->active_prev || op == active_objects)
644	return;
645
646	/* process_events() expects us to insert the object at the beginning
647	* of the list. */
648	op->active_next = active_objects;
649
650	if (op->active_next != NULL)
651	op->active_next->active_prev = op;
652
653	active_objects = op;
654	}
655	else	759	else
656	{	760	deactivate ();
657	/* If not on the active list, nothing needs to be done */
658	if (!op->active_next && !op->active_prev && op != active_objects)
659	return;
660
661	if (op->active_prev == NULL)
662	{
663	active_objects = op->active_next;
664
665	if (op->active_next != NULL)
666	op->active_next->active_prev = NULL;
667	}
668	else
669	{
670	op->active_prev->active_next = op->active_next;
671
672	if (op->active_next)
673	op->active_next->active_prev = op->active_prev;
674	}
675
676	op->active_next = NULL;
677	op->active_prev = NULL;
678	}
679	}	761	}
680		762
681	/* This function removes object 'op' from the list of active
682	* objects.
683	* This should only be used for style maps or other such
684	* reference maps where you don't want an object that isn't
685	* in play chewing up cpu time getting processed.
686	* The reverse of this is to call update_ob_speed, which
687	* will do the right thing based on the speed of the object.
688	*/
689	void
690	remove_from_active_list (object *op)
691	{
692	/* If not on the active list, nothing needs to be done */
693	if (!op->active_next && !op->active_prev && op != active_objects)
694	return;
695
696	if (op->active_prev == NULL)
697	{
698	active_objects = op->active_next;
699	if (op->active_next != NULL)
700	op->active_next->active_prev = NULL;
701	}
702	else
703	{
704	op->active_prev->active_next = op->active_next;
705	if (op->active_next)
706	op->active_next->active_prev = op->active_prev;
707	}
708	op->active_next = NULL;
709	op->active_prev = NULL;
710	}
711
712	/*	763	/*
713	* update_object() updates the array which represents the map.	764	* update_object() updates the the map.
714	* It takes into account invisible objects (and represent squares covered	765	* It takes into account invisible objects (and represent squares covered
715	* by invisible objects by whatever is below them (unless it's another	766	* by invisible objects by whatever is below them (unless it's another
716	* invisible object, etc...)	767	* invisible object, etc...)
717	* If the object being updated is beneath a player, the look-window	768	* If the object being updated is beneath a player, the look-window
718	* of that player is updated (this might be a suboptimal way of	769	* of that player is updated (this might be a suboptimal way of
719	* updating that window, though, since update_object() is called _often_)	770	* updating that window, though, since update_object() is called _often_)
720	*	771	*
721	* action is a hint of what the caller believes need to be done.	772	* action is a hint of what the caller believes need to be done.
722	* For example, if the only thing that has changed is the face (due to
723	* an animation), we don't need to call update_position until that actually
724	* comes into view of a player. OTOH, many other things, like addition/removal
725	* of walls or living creatures may need us to update the flags now.
726	* current action are:	773	* current action are:
727	* UP_OBJ_INSERT: op was inserted	774	* UP_OBJ_INSERT: op was inserted
728	* UP_OBJ_REMOVE: op was removed	775	* UP_OBJ_REMOVE: op was removed
729	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update	776	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update
730	* as that is easier than trying to look at what may have changed.	777	* as that is easier than trying to look at what may have changed.
731	* UP_OBJ_FACE: only the objects face has changed.	778	* UP_OBJ_FACE: only the objects face has changed.
732	*/	779	*/
733
734	void	780	void
735	update_object (object *op, int action)	781	update_object (object *op, int action)
736	{	782	{
737	int update_now = 0, flags;	783	if (!op)
738	MoveType move_on, move_off, move_block, move_slow;
739
740	if (op == NULL)
741	{	784	{
742	/* this should never happen */	785	/* this should never happen */
743	LOG (llevDebug, "update_object() called for NULL object.\n");	786	LOG (llevError | logBacktrace, "update_object() called for NULL object.\n");
744	return;	787	return;
745	}	788	}
746		789
747	if (op->env != NULL)	790	if (!op->is_on_map ())
748	{	791	{
749	/* Animation is currently handled by client, so nothing	792	/* Animation is currently handled by client, so nothing
750	* to do in this case.	793	* to do in this case.
751	*/	794	*/
752	return;	795	return;
753	}	796	}
754		797
755	/* If the map is saving, don't do anything as everything is
756	* going to get freed anyways.
757	*/
758	if (!op->map || op->map->in_memory == MAP_SAVING)
759	return;
760
761	/* make sure the object is within map boundaries */	798	/* make sure the object is within map boundaries */
762	if (op->x < 0 || op->x >= MAP_WIDTH (op->map) || op->y < 0 || op->y >= MAP_HEIGHT (op->map))	799	if (op->x < 0 || op->x >= op->map->width || op->y < 0 || op->y >= op->map->height)
763	{	800	{
764	LOG (llevError, "update_object() called for object out of map!\n");	801	LOG (llevError, "update_object() called for object out of map!\n");
765	#ifdef MANY_CORES	802	#ifdef MANY_CORES
766	abort ();	803	abort ();
767	#endif	804	#endif
768	return;	805	return;
769	}	806	}
770		807
771	flags = GET_MAP_FLAGS (op->map, op->x, op->y);	808	mapspace &m = op->ms ();
772	SET_MAP_FLAGS (op->map, op->x, op->y, flags | P_NEED_UPDATE);
773	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);
774	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);
775	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);
776	move_off = GET_MAP_MOVE_OFF (op->map, op->x, op->y);
777		809
		810	if (!(m.flags_ & P_UPTODATE))
		811	/* nop */;
778	if (action == UP_OBJ_INSERT)	812	else if (action == UP_OBJ_INSERT)
779	{	813	{
		814	#if 0
		815	// this is likely overkill, TODO: revisit (schmorp)
780	if (QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(flags & P_BLOCKSVIEW))	816	if ((QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(m.flags_ & P_BLOCKSVIEW))
781	update_now = 1;
782
783	if (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(flags & P_NO_MAGIC))	817	|| (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(m.flags_ & P_NO_MAGIC))
784	update_now = 1;	818	|| (op->is_player () && !(m.flags_ & P_PLAYER))
785		819	|| (op->type == SAFE_GROUND && !(m.flags_ & P_SAFE))
		820	|| (QUERY_FLAG (op, FLAG_ALIVE) && !(m.flags_ & P_IS_ALIVE))
786	if (QUERY_FLAG (op, FLAG_DAMNED) && !(flags & P_NO_CLERIC))	821	|| (QUERY_FLAG (op, FLAG_DAMNED) && !(m.flags_ & P_NO_CLERIC))
787	update_now = 1;
788
789	if (QUERY_FLAG (op, FLAG_ALIVE) && !(flags & P_IS_ALIVE))
790	update_now = 1;
791
792	if (op->type == SAFE_GROUND && !(flags & P_SAFE))
793	update_now = 1;
794
795	if ((move_on | op->move_on) != move_on)	822	|| (m.move_on | op->move_on ) != m.move_on
796	update_now = 1;
797
798	if ((move_off | op->move_off) != move_off)	823	|| (m.move_off | op->move_off ) != m.move_off
799	update_now = 1;	824	|| (m.move_slow | op->move_slow) != m.move_slow
800
801	/* This isn't perfect, but I don't expect a lot of objects to	825	/* This isn't perfect, but I don't expect a lot of objects to
802	* to have move_allow right now.	826	* have move_allow right now.
803	*/	827	*/
804	if (((move_block | op->move_block) & ~op->move_allow) != move_block)	828	|| ((m.move_block | op->move_block) & ~op->move_allow) != m.move_block
805	update_now = 1;	829	m.invalidate ();
806		830	#else
807	if ((move_slow | op->move_slow) != move_slow)	831	// the above is not strong enough a test to skip updating. los maybe? TODO (schmorp)
808	update_now = 1;	832	m.invalidate ();
		833	#endif
809	}	834	}
810
811	/* if the object is being removed, we can't make intelligent	835	/* if the object is being removed, we can't make intelligent
812	* decisions, because remove_ob can't really pass the object	836	* decisions, because remove_ob can't really pass the object
813	* that is being removed.	837	* that is being removed.
814	*/	838	*/
815	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)	839	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)
816	update_now = 1;	840	m.invalidate ();
817	else if (action == UP_OBJ_FACE)	841	else if (action == UP_OBJ_FACE)
818	/* Nothing to do for that case */ ;	842	/* Nothing to do for that case */ ;
819	else	843	else
820	LOG (llevError, "update_object called with invalid action: %d\n", action);	844	LOG (llevError, "update_object called with invalid action: %d\n", action);
821		845
822	if (update_now)
823	{
824	SET_MAP_FLAGS (op->map, op->x, op->y, flags | P_NO_ERROR | P_NEED_UPDATE);
825	update_position (op->map, op->x, op->y);
826	}
827
828	if (op->more != NULL)	846	if (op->more)
829	update_object (op->more, action);	847	update_object (op->more, action);
830	}	848	}
831		849
832	object::vector object::mortals;
833	object::vector object::objects; // not yet used
834	object *object::first;
835
836	void object::free_mortals ()
837	{
838	for (AUTODECL (i, mortals.begin ()); i != mortals.end ();)
839	if ((*i)->refcnt)
840	++i; // further delay freeing
841	else
842	{
843	delete *i;
844	mortals.erase (i);
845	}
846	}
847
848	object::object ()	850	object::object ()
849	{	851	{
850	SET_FLAG (this, FLAG_REMOVED);	852	SET_FLAG (this, FLAG_REMOVED);
851		853
852	expmul = 1.0;	854	//expmul = 1.0; declared const for the time being
853	face = blank_face;	855	face = blank_face;
		856	material = MATERIAL_NULL;
854	}	857	}
855		858
856	object::~object ()	859	object::~object ()
857	{	860	{
		861	unlink ();
		862
858	free_key_values (this);	863	free_key_values (this);
859	}	864	}
860		865
		866	static int object_count;
		867
861	void object::link ()	868	void object::link ()
862	{	869	{
		870	assert (!index);//D
		871	uuid = UUID::gen ();
863	count = ++ob_count;	872	count = ++object_count;
864	uuid = gen_uuid ();
865		873
866	prev = 0;	874	refcnt_inc ();
867	next = object::first;	875	objects.insert (this);
868
869	if (object::first)
870	object::first->prev = this;
871
872	object::first = this;
873	}	876	}
874		877
875	void object::unlink ()	878	void object::unlink ()
876	{	879	{
877	if (this == object::first)	880	if (!index)
878	object::first = next;	881	return;
879		882
880	/* Remove this object from the list of used objects */	883	objects.erase (this);
881	if (prev) prev->next = next;	884	refcnt_dec ();
882	if (next) next->prev = prev;	885	}
883		886
884	prev = 0;	887	void
885	next = 0;	888	object::activate ()
		889	{
		890	/* If already on active list, don't do anything */
		891	if (active)
		892	return;
		893
		894	if (has_active_speed ())
		895	{
		896	if (flag [FLAG_FREED])
		897	LOG (llevError | logBacktrace, "BUG: tried to activate freed object %s\n", debug_desc ());//D
		898
		899	actives.insert (this);
		900	}
		901	}
		902
		903	void
		904	object::activate_recursive ()
		905	{
		906	activate ();
		907
		908	for (object *op = inv; op; op = op->below)
		909	op->activate_recursive ();
		910	}
		911
		912	/* This function removes object 'op' from the list of active
		913	* objects.
		914	* This should only be used for style maps or other such
		915	* reference maps where you don't want an object that isn't
		916	* in play chewing up cpu time getting processed.
		917	* The reverse of this is to call update_ob_speed, which
		918	* will do the right thing based on the speed of the object.
		919	*/
		920	void
		921	object::deactivate ()
		922	{
		923	/* If not on the active list, nothing needs to be done */
		924	if (!active)
		925	return;
		926
		927	actives.erase (this);
		928	}
		929
		930	void
		931	object::deactivate_recursive ()
		932	{
		933	for (object *op = inv; op; op = op->below)
		934	op->deactivate_recursive ();
		935
		936	deactivate ();
		937	}
		938
		939	void
		940	object::set_flag_inv (int flag, int value)
		941	{
		942	for (object *op = inv; op; op = op->below)
		943	{
		944	op->flag [flag] = value;
		945	op->set_flag_inv (flag, value);
		946	}
		947	}
		948
		949	/*
		950	* Remove and free all objects in the inventory of the given object.
		951	* object.c ?
		952	*/
		953	void
		954	object::destroy_inv (bool drop_to_ground)
		955	{
		956	// need to check first, because the checks below might segfault
		957	// as we might be on an invalid mapspace and crossfire code
		958	// is too buggy to ensure that the inventory is empty.
		959	// corollary: if you create arrows etc. with stuff in its inventory,
		960	// cf will crash below with off-map x and y
		961	if (!inv)
		962	return;
		963
		964	/* Only if the space blocks everything do we not process -
		965	* if some form of movement is allowed, let objects
		966	* drop on that space.
		967	*/
		968	if (!drop_to_ground
		969	|| !map
		970	|| map->in_memory != MAP_ACTIVE
		971	|| map->no_drop
		972	|| ms ().move_block == MOVE_ALL)
		973	{
		974	while (inv)
		975	inv->destroy ();
		976	}
		977	else
		978	{ /* Put objects in inventory onto this space */
		979	while (inv)
		980	{
		981	object *op = inv;
		982
		983	if (op->flag [FLAG_STARTEQUIP]
		984	|| op->flag [FLAG_NO_DROP]
		985	|| op->type == RUNE
		986	|| op->type == TRAP
		987	|| op->flag [FLAG_IS_A_TEMPLATE]
		988	|| op->flag [FLAG_DESTROY_ON_DEATH])
		989	op->destroy ();
		990	else
		991	map->insert (op, x, y);
		992	}
		993	}
886	}	994	}
887		995
888	object *object::create ()	996	object *object::create ()
889	{	997	{
890	object *op = new object;	998	object *op = new object;
891	op->link ();	999	op->link ();
892	return op;	1000	return op;
893	}	1001	}
894		1002
895	/*	1003	static struct freed_map : maptile
896	* free_object() frees everything allocated by an object, removes
897	* it from the list of used objects, and puts it on the list of
898	* free objects. The IS_FREED() flag is set in the object.
899	* The object must have been removed by remove_ob() first for
900	* this function to succeed.
901	*
902	* If destroy_inventory is set, free inventory as well. Else drop items in
903	* inventory to the ground.
904	*/
905	void object::destroy (bool destroy_inventory)
906	{	1004	{
907	if (QUERY_FLAG (this, FLAG_FREED))	1005	freed_map ()
		1006	{
		1007	path = "<freed objects map>";
		1008	name = "/internal/freed_objects_map";
		1009	width = 3;
		1010	height = 3;
		1011	no_drop = 1;
		1012	no_reset = 1;
		1013
		1014	alloc ();
		1015	in_memory = MAP_ACTIVE;
		1016	}
		1017
		1018	~freed_map ()
		1019	{
		1020	destroy ();
		1021	}
		1022	} freed_map; // freed objects are moved here to avoid crashes
		1023
		1024	void
		1025	object::do_destroy ()
		1026	{
		1027	if (flag [FLAG_IS_LINKED])
		1028	remove_link ();
		1029
		1030	if (flag [FLAG_FRIENDLY])
		1031	remove_friendly_object (this);
		1032
		1033	remove ();
		1034
		1035	attachable::do_destroy ();
		1036
		1037	deactivate ();
		1038	unlink ();
		1039
		1040	flag [FLAG_FREED] = 1;
		1041
		1042	// hack to ensure that freed objects still have a valid map
		1043	map = &freed_map;
		1044	x = 1;
		1045	y = 1;
		1046
		1047	if (more)
		1048	{
		1049	more->destroy ();
		1050	more = 0;
		1051	}
		1052
		1053	head = 0;
		1054
		1055	// clear those pointers that likely might cause circular references
		1056	owner = 0;
		1057	enemy = 0;
		1058	attacked_by = 0;
		1059	current_weapon = 0;
		1060	}
		1061
		1062	void
		1063	object::destroy ()
		1064	{
		1065	if (destroyed ())
908	return;	1066	return;
909		1067
910	if (QUERY_FLAG (this, FLAG_FRIENDLY))	1068	if (!is_head () && !head->destroyed ())
911	remove_friendly_object (this);
912
913	if (!QUERY_FLAG (this, FLAG_REMOVED))
914	remove_ob (this);
915
916	SET_FLAG (this, FLAG_FREED);
917
918	if (more)
919	{
920	more->destroy (destroy_inventory);
921	more = 0;
922	}
923
924	if (inv)
925	{
926	/* Only if the space blocks everything do we not process -
927	* if some form of movement is allowed, let objects
928	* drop on that space.
929	*/
930	if (destroy_inventory || !map || map->in_memory != MAP_IN_MEMORY || GET_MAP_MOVE_BLOCK (map, x, y) == MOVE_ALL)
931	{
932	object *op = inv;
933
934	while (op)
935	{
936	object *tmp = op->below;
937	op->destroy (destroy_inventory);
938	op = tmp;
939	}
940	}
941	else
942	{ /* Put objects in inventory onto this space */
943	object *op = inv;
944
945	while (op)
946	{
947	object *tmp = op->below;
948
949	remove_ob (op);
950
951	if (QUERY_FLAG (op, FLAG_STARTEQUIP)
952	|| QUERY_FLAG (op, FLAG_NO_DROP) || op->type == RUNE || op->type == TRAP || QUERY_FLAG (op, FLAG_IS_A_TEMPLATE))
953	free_object (op);
954	else
955	{
956	op->x = x;
957	op->y = y;
958	insert_ob_in_map (op, map, 0, 0); /* Insert in same map as the envir */
959	}
960
961	op = tmp;
962	}
963	}
964	}
965
966	// hack to ensure that freed objects still have a valid map
967	{
968	static maptile *freed_map; // freed objects are moved here to avoid crashes
969
970	if (!freed_map)
971	{	1069	{
972	freed_map = new maptile;	1070	LOG (llevError | logBacktrace, "tried to destroy the tail of an object");
973		1071	head->destroy ();
974	freed_map->name = "/internal/freed_objects_map";	1072	return;
975	freed_map->width = 3;
976	freed_map->height = 3;
977
978	freed_map->allocate ();
979	}	1073	}
980		1074
981	map = freed_map;	1075	destroy_inv (false);
982	x = 1;
983	y = 1;
984	}
985		1076
986	// clear those pointers that likely might have circular references to us	1077	if (is_head ())
987	owner = 0;	1078	if (sound_destroy)
988	enemy = 0;	1079	play_sound (sound_destroy);
989	attacked_by = 0;	1080	else if (flag [FLAG_MONSTER])
		1081	play_sound (sound_find ("monster_destroy")); // quick hack, too lazy to create a generic mechanism
990		1082
991	// only relevant for players(?), but make sure of it anyways	1083	attachable::destroy ();
992	contr = 0;
993
994	/* Remove object from the active list */
995	speed = 0;
996	update_ob_speed (this);
997
998	unlink ();
999
1000	mortals.push_back (this);
1001	}	1084	}
1002		1085
1003	/*	1086	/* op->remove ():
1004	* sub_weight() recursively (outwards) subtracts a number from the
1005	* weight of an object (and what is carried by it's environment(s)).
1006	*/
1007	void
1008	sub_weight (object *op, signed long weight)
1009	{
1010	while (op != NULL)
1011	{
1012	if (op->type == CONTAINER)
1013	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1014
1015	op->carrying -= weight;
1016	op = op->env;
1017	}
1018	}
1019
1020	/* remove_ob(op):
1021	* This function removes the object op from the linked list of objects	1087	* This function removes the object op from the linked list of objects
1022	* which it is currently tied to. When this function is done, the	1088	* which it is currently tied to. When this function is done, the
1023	* object will have no environment. If the object previously had an	1089	* object will have no environment. If the object previously had an
1024	* environment, the x and y coordinates will be updated to	1090	* environment, the x and y coordinates will be updated to
1025	* the previous environment.	1091	* the previous environment.
1026	* Beware: This function is called from the editor as well!
1027	*/	1092	*/
1028	void	1093	void
1029	object::remove ()	1094	object::do_remove ()
1030	{	1095	{
1031	object *tmp, *last = 0;	1096	if (flag [FLAG_REMOVED])
1032	object *otmp;
1033
1034	int check_walk_off;
1035
1036	if (QUERY_FLAG (this, FLAG_REMOVED))
1037	return;	1097	return;
1038		1098
1039	SET_FLAG (this, FLAG_REMOVED);	1099	INVOKE_OBJECT (REMOVE, this);
		1100
		1101	flag [FLAG_REMOVED] = true;
1040		1102
1041	if (more)	1103	if (more)
1042	more->remove ();	1104	more->remove ();
1043		1105
1044	/*	1106	/*
1045	* In this case, the object to be removed is in someones	1107	* In this case, the object to be removed is in someones
1046	* inventory.	1108	* inventory.
1047	*/	1109	*/
1048	if (env)	1110	if (env)
1049	{	1111	{
1050	if (nrof)	1112	flag [FLAG_REMOVED] = false; // hack around the issue of visible_to checking flag_removed
1051	sub_weight (env, weight * nrof);	1113	if (object *pl = visible_to ())
1052	else	1114	esrv_del_item (pl->contr, count);
1053	sub_weight (env, weight + carrying);	1115	flag [FLAG_REMOVED] = true; // hack around the issue of visible_to checking flag_removed
1054		1116
1055	/* NO_FIX_PLAYER is set when a great many changes are being	1117	adjust_weight (env, -total_weight ());
1056	* made to players inventory. If set, avoiding the call
1057	* to save cpu time.
1058	*/
1059	if ((otmp = is_player_inv (env)) != NULL && otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1060	fix_player (otmp);
1061		1118
1062	if (above != NULL)	1119	object *pl = in_player ();
1063	above->below = below;
1064	else
1065	env->inv = below;
1066
1067	if (below != NULL)
1068	below->above = above;
1069		1120
1070	/* we set up values so that it could be inserted into	1121	/* we set up values so that it could be inserted into
1071	* the map, but we don't actually do that - it is up	1122	* the map, but we don't actually do that - it is up
1072	* to the caller to decide what we want to do.	1123	* to the caller to decide what we want to do.
1073	*/	1124	*/
1074	x = env->x, y = env->y;
1075	map = env->map;	1125	map = env->map;
1076	above = 0, below = 0;	1126	x = env->x;
1077	env = 0;	1127	y = env->y;
1078	}
1079	else if (map)
1080	{
1081	/* Re did the following section of code - it looks like it had
1082	* lots of logic for things we no longer care about
1083	*/
1084		1128
1085	/* link the object above us */	1129	// make sure cmov optimisation is applicable
1086	if (above)	1130	*(above ? &above->below : &env->inv) = below;
1087	above->below = below;	1131	*(below ? &below->above : &above ) = above; // &above is just a dummy
1088	else
1089	SET_MAP_TOP (map, x, y, below); /* we were top, set new top */
1090
1091	/* Relink the object below us, if there is one */
1092	if (below)
1093	below->above = above;
1094	else
1095	{
1096	/* Nothing below, which means we need to relink map object for this space
1097	* use translated coordinates in case some oddness with map tiling is
1098	* evident
1099	*/
1100	if (GET_MAP_OB (map, x, y) != this)
1101	{
1102	char *dump = dump_object (this);
1103	LOG (llevError,
1104	"remove_ob: GET_MAP_OB does not return object to be removed even though it appears to be on the bottom?\n%s\n", dump);
1105	free (dump);
1106	dump = dump_object (GET_MAP_OB (map, x, y));
1107	LOG (llevError, "%s\n", dump);
1108	free (dump);
1109	}
1110
1111	SET_MAP_OB (map, x, y, above); /* goes on above it. */
1112	}
1113		1132
1114	above = 0;	1133	above = 0;
1115	below = 0;	1134	below = 0;
		1135	env = 0;
		1136
		1137	if (pl && pl->is_player ())
		1138	{
		1139	pl->contr->queue_stats_update ();
		1140
		1141	if (glow_radius && pl->is_on_map ())
		1142	update_all_los (pl->map, pl->x, pl->y);
		1143	}
		1144	}
		1145	else if (map)
		1146	{
		1147	map->dirty = true;
		1148	mapspace &ms = this->ms ();
		1149
		1150	if (object *pl = ms.player ())
		1151	{
		1152	if (is_player ())
		1153	{
		1154	if (!flag [FLAG_WIZPASS])
		1155	ms.smell = ++mapspace::smellcount; // remember the smell of the player
		1156
		1157	// leaving a spot always closes any open container on the ground
		1158	if (container && !container->env)
		1159	// this causes spurious floorbox updates, but it ensures
		1160	// that the CLOSE event is being sent.
		1161	close_container ();
		1162
		1163	--map->players;
		1164	map->touch ();
		1165	}
		1166	else if (pl->container_ () == this)
		1167	{
		1168	// removing a container should close it
		1169	close_container ();
		1170	}
		1171
		1172	esrv_del_item (pl->contr, count);
		1173	}
		1174
		1175	/* link the object above us */
		1176	// re-link, make sure compiler can easily use cmove
		1177	*(above ? &above->below : &ms.top) = below;
		1178	*(below ? &below->above : &ms.bot) = above;
		1179
		1180	above = 0;
		1181	below = 0;
		1182
		1183	ms.invalidate ();
1116		1184
1117	if (map->in_memory == MAP_SAVING)	1185	if (map->in_memory == MAP_SAVING)
1118	return;	1186	return;
1119		1187
1120	check_walk_off = !QUERY_FLAG (this, FLAG_NO_APPLY);	1188	int check_walk_off = !flag [FLAG_NO_APPLY];
1121		1189
1122	for (tmp = GET_MAP_OB (map, x, y); tmp; tmp = tmp->above)	1190	if (object *pl = ms.player ())
1123	{	1191	{
1124	/* No point updating the players look faces if he is the object	1192	if (pl->container_ () == this)
1125	* being removed.
1126	*/
1127
1128	if (tmp->type == PLAYER && tmp != this)
1129	{
1130	/* If a container that the player is currently using somehow gets	1193	/* If a container that the player is currently using somehow gets
1131	* removed (most likely destroyed), update the player view	1194	* removed (most likely destroyed), update the player view
1132	* appropriately.	1195	* appropriately.
1133	*/	1196	*/
1134	if (tmp->container == this)	1197	pl->close_container ();
		1198
		1199	//TODO: the floorbox prev/next might need updating
		1200	//esrv_del_item (pl->contr, count);
		1201	//TODO: update floorbox to preserve ordering
		1202	if (pl->contr->ns)
		1203	pl->contr->ns->floorbox_update ();
		1204	}
		1205
		1206	if (check_walk_off)
		1207	for (object *above, *tmp = ms.bot; tmp; tmp = above)
1135	{	1208	{
1136	CLEAR_FLAG (this, FLAG_APPLIED);	1209	above = tmp->above;
1137	tmp->container = 0;
1138	}
1139		1210
1140	tmp->contr->socket.update_look = 1;	1211	/* No point updating the players look faces if he is the object
		1212	* being removed.
1141	}	1213	*/
1142		1214
1143	/* See if player moving off should effect something */	1215	/* See if object moving off should effect something */
1144	if (check_walk_off
1145	&& ((move_type & tmp->move_off)	1216	if ((move_type & tmp->move_off)
1146	&& (move_type & ~tmp->move_off & ~tmp->move_block) == 0))	1217	&& (move_type & ~tmp->move_off & ~tmp->move_block) == 0)
1147	{
1148	move_apply (tmp, this, 0);	1218	move_apply (tmp, this, 0);
1149
1150	if (destroyed ())
1151	LOG (llevError, "BUG: remove_ob(): name %s, destroyed leaving object\n", tmp->debug_desc ());
1152	}	1219	}
1153		1220
1154	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */	1221	if (affects_los ())
1155
1156	if (tmp->above == tmp)
1157	tmp->above = 0;
1158
1159	last = tmp;
1160	}
1161
1162	/* last == NULL of there are no objects on this space */
1163	if (!last)
1164	{
1165	/* set P_NEED_UPDATE, otherwise update_position will complain. In theory,
1166	* we could preserve the flags (GET_MAP_FLAGS), but update_position figures
1167	* those out anyways, and if there are any flags set right now, they won't
1168	* be correct anyways.
1169	*/
1170	SET_MAP_FLAGS (map, x, y, P_NEED_UPDATE);
1171	update_position (map, x, y);
1172	}
1173	else
1174	update_object (last, UP_OBJ_REMOVE);
1175
1176	if (QUERY_FLAG (this, FLAG_BLOCKSVIEW) || glow_radius)
1177	update_all_los (map, x, y);	1222	update_all_los (map, x, y);
1178	}	1223	}
1179	}	1224	}
1180		1225
1181	/*	1226	/*
…		…
1190	merge_ob (object *op, object *top)	1235	merge_ob (object *op, object *top)
1191	{	1236	{
1192	if (!op->nrof)	1237	if (!op->nrof)
1193	return 0;	1238	return 0;
1194		1239
1195	if (top == NULL)	1240	if (!top)
1196	for (top = op; top != NULL && top->above != NULL; top = top->above);	1241	for (top = op; top && top->above; top = top->above)
		1242	;
1197		1243
1198	for (; top != NULL; top = top->below)	1244	for (; top; top = top->below)
1199	{	1245	if (object::can_merge (op, top))
1200	if (top == op)
1201	continue;
1202	if (CAN_MERGE (op, top))
1203	{	1246	{
1204	top->nrof += op->nrof;	1247	top->nrof += op->nrof;
1205		1248
1206	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/	1249	if (object *pl = top->visible_to ())
1207	op->weight = 0; /* Don't want any adjustements now */	1250	esrv_update_item (UPD_NROF, pl, top);
1208	remove_ob (op);	1251
1209	free_object (op);	1252	op->weight = 0; // cancel the addition above
		1253	op->carrying = 0; // must be 0 already
		1254
		1255	op->destroy ();
		1256
1210	return top;	1257	return top;
1211	}	1258	}
1212	}
1213		1259
1214	return 0;	1260	return 0;
1215	}	1261	}
1216		1262
		1263	void
		1264	object::expand_tail ()
		1265	{
		1266	if (more)
		1267	return;
		1268
		1269	object *prev = this;
		1270
		1271	for (archetype *at = (archetype *)arch->more; at; at = (archetype *)at->more)
		1272	{
		1273	object *op = at->instance ();
		1274
		1275	op->name = name;
		1276	op->name_pl = name_pl;
		1277	op->title = title;
		1278
		1279	op->head = this;
		1280	prev->more = op;
		1281
		1282	prev = op;
		1283	}
		1284	}
		1285
1217	/*	1286	/*
1218	* same as insert_ob_in_map except it handle separate coordinates and do a clean	1287	* same as insert_ob_in_map except it handles separate coordinates and does a clean
1219	* job preparing multi-part monsters	1288	* job preparing multi-part monsters.
1220	*/	1289	*/
1221	object *	1290	object *
1222	insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)	1291	insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)
1223	{	1292	{
1224	object *tmp;	1293	op->remove ();
1225		1294
1226	if (op->head)
1227	op = op->head;
1228
1229	for (tmp = op; tmp; tmp = tmp->more)	1295	for (object *tmp = op->head_ (); tmp; tmp = tmp->more)
1230	{	1296	{
1231	tmp->x = x + tmp->arch->clone.x;	1297	tmp->x = x + tmp->arch->x;
1232	tmp->y = y + tmp->arch->clone.y;	1298	tmp->y = y + tmp->arch->y;
1233	}	1299	}
1234		1300
1235	return insert_ob_in_map (op, m, originator, flag);	1301	return insert_ob_in_map (op, m, originator, flag);
1236	}	1302	}
1237		1303
…		…
1253	* Return value:	1319	* Return value:
1254	* new object if 'op' was merged with other object	1320	* new object if 'op' was merged with other object
1255	* NULL if 'op' was destroyed	1321	* NULL if 'op' was destroyed
1256	* just 'op' otherwise	1322	* just 'op' otherwise
1257	*/	1323	*/
1258
1259	object *	1324	object *
1260	insert_ob_in_map (object *op, maptile *m, object *originator, int flag)	1325	insert_ob_in_map (object *op, maptile *m, object *originator, int flag)
1261	{	1326	{
1262	object *tmp, *top, *floor = NULL;	1327	op->remove ();
1263	sint16 x, y;
1264		1328
1265	if (QUERY_FLAG (op, FLAG_FREED))	1329	if (m == &freed_map)//D TODO: remove soon
1266	{	1330	{//D
1267	LOG (llevError, "Trying to insert freed object!\n");	1331	LOG (llevError | logBacktrace, "tries to insret object on freed objects map: %s", op->debug_desc ());//D
1268	return NULL;
1269	}	1332	}//D
1270
1271	if (m == NULL)
1272	{
1273	char *dump = dump_object (op);
1274	LOG (llevError, "Trying to insert in null-map!\n%s\n", dump);
1275	free (dump);
1276	return op;
1277	}
1278
1279	if (out_of_map (m, op->x, op->y))
1280	{
1281	char *dump = dump_object (op);
1282	LOG (llevError, "Trying to insert object outside the map.\n%s\n", dump);
1283	#ifdef MANY_CORES
1284	/* Better to catch this here, as otherwise the next use of this object
1285	* is likely to cause a crash. Better to find out where it is getting
1286	* improperly inserted.
1287	*/
1288	abort ();
1289	#endif
1290	free (dump);
1291	return op;
1292	}
1293
1294	if (!QUERY_FLAG (op, FLAG_REMOVED))
1295	{
1296	char *dump = dump_object (op);
1297	LOG (llevError, "Trying to insert (map) inserted object.\n%s\n", dump);
1298	free (dump);
1299	return op;
1300	}
1301
1302	if (op->more != NULL)
1303	{
1304	/* The part may be on a different map. */
1305
1306	object *more = op->more;
1307
1308	/* We really need the caller to normalize coordinates - if
1309	* we set the map, that doesn't work if the location is within
1310	* a map and this is straddling an edge. So only if coordinate
1311	* is clear wrong do we normalize it.
1312	*/
1313	if (OUT_OF_REAL_MAP (more->map, more->x, more->y))
1314	more->map = get_map_from_coord (m, &more->x, &more->y);
1315	else if (!more->map)
1316	{
1317	/* For backwards compatibility - when not dealing with tiled maps,
1318	* more->map should always point to the parent.
1319	*/
1320	more->map = m;
1321	}
1322
1323	if (insert_ob_in_map (more, more->map, originator, flag) == NULL)
1324	{
1325	if (!op->head)
1326	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");
1327
1328	return NULL;
1329	}
1330	}
1331
1332	CLEAR_FLAG (op, FLAG_REMOVED);
1333		1333
1334	/* Ideally, the caller figures this out. However, it complicates a lot	1334	/* Ideally, the caller figures this out. However, it complicates a lot
1335	* of areas of callers (eg, anything that uses find_free_spot would now	1335	* of areas of callers (eg, anything that uses find_free_spot would now
1336	* need extra work	1336	* need extra work
1337	*/	1337	*/
1338	op->map = get_map_from_coord (m, &op->x, &op->y);	1338	maptile *newmap = m;
1339	x = op->x;	1339	if (!xy_normalise (newmap, op->x, op->y))
1340	y = op->y;	1340	{
		1341	op->head_ ()->destroy ();// remove head_ once all tail object destroyers found
		1342	return 0;
		1343	}
		1344
		1345	if (object *more = op->more)
		1346	if (!insert_ob_in_map (more, m, originator, flag))
		1347	return 0;
		1348
		1349	op->flag [FLAG_REMOVED] = false;
		1350	op->env = 0;
		1351	op->map = newmap;
		1352
		1353	mapspace &ms = op->ms ();
1341		1354
1342	/* this has to be done after we translate the coordinates.	1355	/* this has to be done after we translate the coordinates.
1343	*/	1356	*/
1344	if (op->nrof && !(flag & INS_NO_MERGE))	1357	if (op->nrof && !(flag & INS_NO_MERGE))
1345	for (tmp = GET_MAP_OB (op->map, x, y); tmp != NULL; tmp = tmp->above)	1358	for (object *tmp = ms.bot; tmp; tmp = tmp->above)
1346	if (CAN_MERGE (op, tmp))	1359	if (object::can_merge (op, tmp))
1347	{	1360	{
		1361	// TODO: we actually want to update tmp, not op,
		1362	// but some caller surely breaks when we return tmp
		1363	// from here :/
1348	op->nrof += tmp->nrof;	1364	op->nrof += tmp->nrof;
1349	remove_ob (tmp);	1365	tmp->destroy ();
1350	free_object (tmp);
1351	}	1366	}
1352		1367
1353	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */	1368	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */
1354	CLEAR_FLAG (op, FLAG_INV_LOCKED);	1369	CLEAR_FLAG (op, FLAG_INV_LOCKED);
1355		1370
…		…
1362	{	1377	{
1363	LOG (llevError, "insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");	1378	LOG (llevError, "insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");
1364	abort ();	1379	abort ();
1365	}	1380	}
1366		1381
		1382	if (!originator->is_on_map ())
		1383	{
		1384	LOG (llevError, "insert_ob_in_map(%s) called with INS_BELOW_ORIGINATOR when originator '%s' not on map",
		1385	op->debug_desc (), originator->debug_desc ());
		1386	abort ();
		1387	}
		1388
1367	op->above = originator;	1389	op->above = originator;
1368	op->below = originator->below;	1390	op->below = originator->below;
1369
1370	if (op->below)
1371	op->below->above = op;
1372	else
1373	SET_MAP_OB (op->map, op->x, op->y, op);
1374
1375	/* since *below* originator, no need to update top */
1376	originator->below = op;	1391	originator->below = op;
		1392
		1393	*(op->below ? &op->below->above : &ms.bot) = op;
1377	}	1394	}
1378	else	1395	else
1379	{	1396	{
		1397	object *floor = 0;
		1398	object *top = ms.top;
		1399
1380	/* If there are other objects, then */	1400	/* If there are other objects, then */
1381	if ((!(flag & INS_MAP_LOAD)) && ((top = GET_MAP_OB (op->map, op->x, op->y)) != NULL))	1401	if (top)
1382	{	1402	{
1383	object *last = NULL;
1384
1385	/*	1403	/*
1386	* If there are multiple objects on this space, we do some trickier handling.	1404	* If there are multiple objects on this space, we do some trickier handling.
1387	* We've already dealt with merging if appropriate.	1405	* We've already dealt with merging if appropriate.
1388	* Generally, we want to put the new object on top. But if	1406	* Generally, we want to put the new object on top. But if
1389	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last	1407	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last
…		…
1392	* once we get to them. This reduces the need to traverse over all of	1410	* once we get to them. This reduces the need to traverse over all of
1393	* them when adding another one - this saves quite a bit of cpu time	1411	* them when adding another one - this saves quite a bit of cpu time
1394	* when lots of spells are cast in one area. Currently, it is presumed	1412	* when lots of spells are cast in one area. Currently, it is presumed
1395	* that flying non pickable objects are spell objects.	1413	* that flying non pickable objects are spell objects.
1396	*/	1414	*/
1397		1415	for (object *tmp = ms.bot; tmp; tmp = tmp->above)
1398	while (top != NULL)
1399	{	1416	{
1400	if (QUERY_FLAG (top, FLAG_IS_FLOOR) || QUERY_FLAG (top, FLAG_OVERLAY_FLOOR))	1417	if (QUERY_FLAG (tmp, FLAG_IS_FLOOR) || QUERY_FLAG (tmp, FLAG_OVERLAY_FLOOR))
1401	floor = top;	1418	floor = tmp;
1402		1419
1403	if (QUERY_FLAG (top, FLAG_NO_PICK) && (top->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (top, FLAG_IS_FLOOR))	1420	if (QUERY_FLAG (tmp, FLAG_NO_PICK) && (tmp->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (tmp, FLAG_IS_FLOOR))
1404	{	1421	{
1405	/* We insert above top, so we want this object below this */	1422	/* We insert above top, so we want this object below this */
1406	top = top->below;	1423	top = tmp->below;
1407	break;	1424	break;
1408	}	1425	}
1409		1426
1410	last = top;
1411	top = top->above;	1427	top = tmp;
1412	}	1428	}
1413
1414	/* Don't want top to be NULL, so set it to the last valid object */
1415	top = last;
1416		1429
1417	/* We let update_position deal with figuring out what the space	1430	/* We let update_position deal with figuring out what the space
1418	* looks like instead of lots of conditions here.	1431	* looks like instead of lots of conditions here.
1419	* makes things faster, and effectively the same result.	1432	* makes things faster, and effectively the same result.
1420	*/	1433	*/
1421		1434
1422	/* Have object 'fall below' other objects that block view.	1435	/* Have object 'fall below' other objects that block view.
1423	* Unless those objects are exits, type 66	1436	* Unless those objects are exits.
1424	* If INS_ON_TOP is used, don't do this processing	1437	* If INS_ON_TOP is used, don't do this processing
1425	* Need to find the object that in fact blocks view, otherwise	1438	* Need to find the object that in fact blocks view, otherwise
1426	* stacking is a bit odd.	1439	* stacking is a bit odd.
1427	*/	1440	*/
1428	if (!(flag & INS_ON_TOP) &&	1441	if (!(flag & INS_ON_TOP)
1429	(get_map_flags (op->map, NULL, op->x, op->y, NULL, NULL) & P_BLOCKSVIEW) && (op->face && !op->face->visibility))	1442	&& ms.flags () & P_BLOCKSVIEW
		1443	&& (op->face && !faces [op->face].visibility))
1430	{	1444	{
		1445	object *last;
		1446
1431	for (last = top; last != floor; last = last->below)	1447	for (last = top; last != floor; last = last->below)
1432	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))	1448	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))
1433	break;	1449	break;
		1450
1434	/* Check to see if we found the object that blocks view,	1451	/* Check to see if we found the object that blocks view,
1435	* and make sure we have a below pointer for it so that	1452	* and make sure we have a below pointer for it so that
1436	* we can get inserted below this one, which requires we	1453	* we can get inserted below this one, which requires we
1437	* set top to the object below us.	1454	* set top to the object below us.
1438	*/	1455	*/
1439	if (last && last->below && last != floor)	1456	if (last && last->below && last != floor)
1440	top = last->below;	1457	top = last->below;
1441	}	1458	}
1442	} /* If objects on this space */	1459	} /* If objects on this space */
1443		1460
1444	if (flag & INS_MAP_LOAD)
1445	top = GET_MAP_TOP (op->map, op->x, op->y);
1446
1447	if (flag & INS_ABOVE_FLOOR_ONLY)	1461	if (flag & INS_ABOVE_FLOOR_ONLY)
1448	top = floor;	1462	top = floor;
1449		1463
1450	/* Top is the object that our object (op) is going to get inserted above.	1464	// insert object above top, or bottom-most if top = 0
1451	*/
1452
1453	/* First object on this space */
1454	if (!top)	1465	if (!top)
1455	{	1466	{
1456	op->above = GET_MAP_OB (op->map, op->x, op->y);
1457
1458	if (op->above)
1459	op->above->below = op;
1460
1461	op->below = NULL;	1467	op->below = 0;
1462	SET_MAP_OB (op->map, op->x, op->y, op);	1468	op->above = ms.bot;
		1469	ms.bot = op;
		1470
		1471	*(op->above ? &op->above->below : &ms.top) = op;
1463	}	1472	}
1464	else	1473	else
1465	{ /* get inserted into the stack above top */	1474	{
1466	op->above = top->above;	1475	op->above = top->above;
1467
1468	if (op->above)
1469	op->above->below = op;	1476	top->above = op;
1470		1477
1471	op->below = top;	1478	op->below = top;
1472	top->above = op;	1479	*(op->above ? &op->above->below : &ms.top) = op;
1473	}	1480	}
		1481	}
1474		1482
1475	if (op->above == NULL)	1483	if (op->is_player ())
1476	SET_MAP_TOP (op->map, op->x, op->y, op);	1484	{
1477	} /* else not INS_BELOW_ORIGINATOR */
1478
1479	if (op->type == PLAYER)
1480	op->contr->do_los = 1;	1485	op->contr->do_los = 1;
		1486	++op->map->players;
		1487	op->map->touch ();
		1488	}
1481		1489
1482	/* If we have a floor, we know the player, if any, will be above	1490	op->map->dirty = true;
1483	* it, so save a few ticks and start from there.	1491
1484	*/	1492	if (object *pl = ms.player ())
1485	if (!(flag & INS_MAP_LOAD))	1493	//TODO: the floorbox prev/next might need updating
1486	for (tmp = floor ? floor : GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)	1494	//esrv_send_item (pl, op);
1487	if (tmp->type == PLAYER)	1495	//TODO: update floorbox to preserve ordering
1488	tmp->contr->socket.update_look = 1;	1496	if (pl->contr->ns)
		1497	pl->contr->ns->floorbox_update ();
1489		1498
1490	/* If this object glows, it may affect lighting conditions that are	1499	/* If this object glows, it may affect lighting conditions that are
1491	* visible to others on this map. But update_all_los is really	1500	* visible to others on this map. But update_all_los is really
1492	* an inefficient way to do this, as it means los for all players	1501	* an inefficient way to do this, as it means los for all players
1493	* on the map will get recalculated. The players could very well	1502	* on the map will get recalculated. The players could very well
1494	* be far away from this change and not affected in any way -	1503	* be far away from this change and not affected in any way -
1495	* this should get redone to only look for players within range,	1504	* this should get redone to only look for players within range,
1496	* or just updating the P_NEED_UPDATE for spaces within this area	1505	* or just updating the P_UPTODATE for spaces within this area
1497	* of effect may be sufficient.	1506	* of effect may be sufficient.
1498	*/	1507	*/
1499	if (MAP_DARKNESS (op->map) && (op->glow_radius != 0))	1508	if (op->affects_los ())
		1509	{
		1510	op->ms ().invalidate ();
1500	update_all_los (op->map, op->x, op->y);	1511	update_all_los (op->map, op->x, op->y);
		1512	}
1501		1513
1502	/* updates flags (blocked, alive, no magic, etc) for this map space */	1514	/* updates flags (blocked, alive, no magic, etc) for this map space */
1503	update_object (op, UP_OBJ_INSERT);	1515	update_object (op, UP_OBJ_INSERT);
1504		1516
		1517	INVOKE_OBJECT (INSERT, op);
		1518
1505	/* Don't know if moving this to the end will break anything. However,	1519	/* Don't know if moving this to the end will break anything. However,
1506	* we want to have update_look set above before calling this.	1520	* we want to have floorbox_update called before calling this.
1507	*	1521	*
1508	* check_move_on() must be after this because code called from	1522	* check_move_on() must be after this because code called from
1509	* check_move_on() depends on correct map flags (so functions like	1523	* check_move_on() depends on correct map flags (so functions like
1510	* blocked() and wall() work properly), and these flags are updated by	1524	* blocked() and wall() work properly), and these flags are updated by
1511	* update_object().	1525	* update_object().
1512	*/	1526	*/
1513		1527
1514	/* if this is not the head or flag has been passed, don't check walk on status */	1528	/* if this is not the head or flag has been passed, don't check walk on status */
1515	if (!(flag & INS_NO_WALK_ON) && !op->head)	1529	if (!(flag & INS_NO_WALK_ON) && op->is_head ())
1516	{	1530	{
1517	if (check_move_on (op, originator))	1531	if (check_move_on (op, originator))
1518	return NULL;	1532	return 0;
1519		1533
1520	/* If we are a multi part object, lets work our way through the check	1534	/* If we are a multi part object, lets work our way through the check
1521	* walk on's.	1535	* walk on's.
1522	*/	1536	*/
1523	for (tmp = op->more; tmp != NULL; tmp = tmp->more)	1537	for (object *tmp = op->more; tmp; tmp = tmp->more)
1524	if (check_move_on (tmp, originator))	1538	if (check_move_on (tmp, originator))
1525	return NULL;	1539	return 0;
1526	}	1540	}
1527		1541
1528	return op;	1542	return op;
1529	}	1543	}
1530		1544
1531	/* this function inserts an object in the map, but if it	1545	/* this function inserts an object in the map, but if it
1532	* finds an object of its own type, it'll remove that one first.	1546	* finds an object of its own type, it'll remove that one first.
1533	* op is the object to insert it under: supplies x and the map.	1547	* op is the object to insert it under: supplies x and the map.
1534	*/	1548	*/
1535	void	1549	void
1536	replace_insert_ob_in_map (const char *arch_string, object *op)	1550	replace_insert_ob_in_map (shstr_tmp archname, object *op)
1537	{	1551	{
1538	object *
1539	tmp;
1540	object *
1541	tmp1;
1542
1543	/* first search for itself and remove any old instances */	1552	/* first search for itself and remove any old instances */
1544		1553
1545	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)	1554	for (object *tmp = op->ms ().bot; tmp; tmp = tmp->above)
1546	{
1547	if (!strcmp (tmp->arch->name, arch_string)) /* same archetype */	1555	if (tmp->arch->archname == archname) /* same archetype */
1548	{	1556	tmp->destroy ();
1549	remove_ob (tmp);
1550	free_object (tmp);
1551	}
1552	}
1553		1557
1554	tmp1 = arch_to_object (archetype::find (arch_string));	1558	object *tmp = archetype::find (archname)->instance ();
1555		1559
1556	tmp1->x = op->x;	1560	tmp->x = op->x;
1557	tmp1->y = op->y;	1561	tmp->y = op->y;
		1562
1558	insert_ob_in_map (tmp1, op->map, op, 0);	1563	insert_ob_in_map (tmp, op->map, op, 0);
1559	}	1564	}
1560
1561	/*
1562	* get_split_ob(ob,nr) splits up ob into two parts. The part which
1563	* is returned contains nr objects, and the remaining parts contains
1564	* the rest (or is removed and freed if that number is 0).
1565	* On failure, NULL is returned, and the reason put into the
1566	* global static errmsg array.
1567	*/
1568		1565
1569	object *	1566	object *
1570	get_split_ob (object *orig_ob, uint32 nr)	1567	object::insert_at (object *where, object *originator, int flags)
1571	{	1568	{
1572	object *	1569	if (where->env)
1573	newob;	1570	return where->env->insert (this);
1574	int	1571	else
1575	is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);	1572	return where->map->insert (this, where->x, where->y, originator, flags);
1576
1577	if (orig_ob->nrof < nr)
1578	{
1579	sprintf (errmsg, "There are only %d %ss.", orig_ob->nrof ? orig_ob->nrof : 1, &orig_ob->name);
1580	return NULL;
1581	}
1582
1583	newob = object_create_clone (orig_ob);
1584
1585	if ((orig_ob->nrof -= nr) < 1)
1586	{
1587	if (!is_removed)
1588	remove_ob (orig_ob);
1589	free_object2 (orig_ob, 1);
1590	}
1591	else if (!is_removed)
1592	{
1593	if (orig_ob->env != NULL)
1594	sub_weight (orig_ob->env, orig_ob->weight * nr);
1595	if (orig_ob->env == NULL && orig_ob->map->in_memory != MAP_IN_MEMORY)
1596	{
1597	strcpy (errmsg, "Tried to split object whose map is not in memory.");
1598	LOG (llevDebug, "Error, Tried to split object whose map is not in memory.\n");
1599	return NULL;
1600	}
1601	}
1602
1603	newob->nrof = nr;
1604
1605	return newob;
1606	}	1573	}
1607		1574
		1575	// check whether we can put this into the map, respect max_volume, max_items
		1576	bool
		1577	object::can_drop_at (maptile *m, int x, int y, object *originator)
		1578	{
		1579	mapspace &ms = m->at (x, y);
		1580
		1581	int items = ms.items ();
		1582
		1583	if (!items // testing !items ensures we can drop at least one item
		1584	|| (items < m->max_items
		1585	&& ms.volume () < m->max_volume))
		1586	return true;
		1587
		1588	if (originator && originator->is_player ())
		1589	originator->contr->failmsg (format (
		1590	"No matter how hard you try, you just cannot put the %s here H<Try to remove some items from the floor first.>",
		1591	query_name ()
		1592	));
		1593
		1594	return false;
		1595	}
		1596
1608	/*	1597	/*
1609	* decrease_ob_nr(object, number) decreases a specified number from	1598	* decrease(object, number) decreases a specified number from
1610	* the amount of an object. If the amount reaches 0, the object	1599	* the amount of an object. If the amount reaches 0, the object
1611	* is subsequently removed and freed.	1600	* is subsequently removed and freed.
1612	*	1601	*
1613	* Return value: 'op' if something is left, NULL if the amount reached 0	1602	* Return value: 'op' if something is left, NULL if the amount reached 0
1614	*/	1603	*/
		1604	bool
		1605	object::decrease (sint32 nr)
		1606	{
		1607	if (!nr)
		1608	return true;
1615		1609
		1610	nr = min (nr, nrof);
		1611
		1612	if (nrof > nr)
		1613	{
		1614	nrof -= nr;
		1615	adjust_weight (env, -weight * max (1, nr)); // carrying == 0
		1616
		1617	if (object *pl = visible_to ())
		1618	esrv_update_item (UPD_NROF, pl, this);
		1619
		1620	return true;
		1621	}
		1622	else
		1623	{
		1624	destroy ();
		1625	return false;
		1626	}
		1627	}
		1628
		1629	/*
		1630	* split(ob,nr) splits up ob into two parts. The part which
		1631	* is returned contains nr objects, and the remaining parts contains
		1632	* the rest (or is removed and returned if that number is 0).
		1633	* On failure, NULL is returned.
		1634	*/
1616	object *	1635	object *
1617	decrease_ob_nr (object *op, uint32 i)	1636	object::split (sint32 nr)
1618	{	1637	{
1619	object *tmp;	1638	int have = number_of ();
1620	player *pl;
1621		1639
1622	if (i == 0) /* objects with op->nrof require this check */	1640	if (have < nr)
1623	return op;	1641	return 0;
1624		1642	else if (have == nr)
1625	if (i > op->nrof)
1626	i = op->nrof;
1627
1628	if (QUERY_FLAG (op, FLAG_REMOVED))
1629	op->nrof -= i;
1630	else if (op->env != NULL)
1631	{	1643	{
1632	/* is this object in the players inventory, or sub container
1633	* therein?
1634	*/
1635	tmp = is_player_inv (op->env);
1636	/* nope. Is this a container the player has opened?
1637	* If so, set tmp to that player.
1638	* IMO, searching through all the players will mostly
1639	* likely be quicker than following op->env to the map,
1640	* and then searching the map for a player.
1641	*/
1642	if (!tmp)
1643	{
1644	for (pl = first_player; pl; pl = pl->next)
1645	if (pl->ob->container == op->env)
1646	break;
1647	if (pl)
1648	tmp = pl->ob;
1649	else
1650	tmp = NULL;
1651	}
1652
1653	if (i < op->nrof)
1654	{
1655	sub_weight (op->env, op->weight * i);
1656	op->nrof -= i;
1657	if (tmp)
1658	{
1659	esrv_send_item (tmp, op);
1660	}
1661	}
1662	else
1663	{
1664	remove_ob (op);	1644	remove ();
1665	op->nrof = 0;	1645	return this;
1666	if (tmp)
1667	{
1668	esrv_del_item (tmp->contr, op->count);
1669	}
1670	}
1671	}	1646	}
1672	else	1647	else
1673	{	1648	{
1674	object *above = op->above;	1649	decrease (nr);
1675		1650
1676	if (i < op->nrof)	1651	object *op = deep_clone ();
1677	op->nrof -= i;	1652	op->nrof = nr;
1678	else
1679	{
1680	remove_ob (op);
1681	op->nrof = 0;
1682	}
1683
1684	/* Since we just removed op, op->above is null */
1685	for (tmp = above; tmp != NULL; tmp = tmp->above)
1686	if (tmp->type == PLAYER)
1687	{
1688	if (op->nrof)
1689	esrv_send_item (tmp, op);
1690	else
1691	esrv_del_item (tmp->contr, op->count);
1692	}
1693	}
1694
1695	if (op->nrof)
1696	return op;	1653	return op;
1697	else
1698	{
1699	free_object (op);
1700	return NULL;
1701	}
1702	}
1703
1704	/*
1705	* add_weight(object, weight) adds the specified weight to an object,
1706	* and also updates how much the environment(s) is/are carrying.
1707	*/
1708
1709	void
1710	add_weight (object *op, signed long weight)
1711	{
1712	while (op != NULL)
1713	{
1714	if (op->type == CONTAINER)
1715	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1716
1717	op->carrying += weight;
1718	op = op->env;
1719	}	1654	}
1720	}	1655	}
1721		1656
1722	object *	1657	object *
1723	insert_ob_in_ob (object *op, object *where)	1658	insert_ob_in_ob (object *op, object *where)
…		…
1728	LOG (llevError, "Trying to put object in NULL.\n%s\n", dump);	1663	LOG (llevError, "Trying to put object in NULL.\n%s\n", dump);
1729	free (dump);	1664	free (dump);
1730	return op;	1665	return op;
1731	}	1666	}
1732		1667
1733	if (where->head)	1668	if (where->head_ () != where)
1734	{	1669	{
1735	LOG (llevDebug, "Warning: Tried to insert object into wrong part of multipart object.\n");	1670	LOG (llevError | logBacktrace, "Warning: Tried to insert object into wrong part of multipart object.\n");
1736	where = where->head;	1671	where = where->head;
1737	}	1672	}
1738		1673
1739	return where->insert (op);	1674	return where->insert (op);
1740	}	1675	}
…		…
1745	* inside the object environment.	1680	* inside the object environment.
1746	*	1681	*
1747	* The function returns now pointer to inserted item, and return value can	1682	* The function returns now pointer to inserted item, and return value can
1748	* be != op, if items are merged. -Tero	1683	* be != op, if items are merged. -Tero
1749	*/	1684	*/
1750
1751	object *	1685	object *
1752	object::insert (object *op)	1686	object::insert (object *op)
1753	{	1687	{
1754	object *tmp, *otmp;
1755
1756	if (!QUERY_FLAG (op, FLAG_REMOVED))
1757	op->remove ();
1758
1759	if (op->more)	1688	if (op->more)
1760	{	1689	{
1761	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);	1690	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);
1762	return op;	1691	return op;
1763	}	1692	}
1764		1693
1765	CLEAR_FLAG (op, FLAG_OBJ_ORIGINAL);	1694	op->remove ();
1766	CLEAR_FLAG (op, FLAG_REMOVED);	1695
		1696	op->flag [FLAG_OBJ_ORIGINAL] = 0;
		1697
1767	if (op->nrof)	1698	if (op->nrof)
1768	{
1769	for (tmp = inv; tmp != NULL; tmp = tmp->below)	1699	for (object *tmp = inv; tmp; tmp = tmp->below)
1770	if (CAN_MERGE (tmp, op))	1700	if (object::can_merge (tmp, op))
1771	{	1701	{
1772	/* return the original object and remove inserted object	1702	/* return the original object and remove inserted object
1773	(client needs the original object) */	1703	(client needs the original object) */
1774	tmp->nrof += op->nrof;	1704	tmp->nrof += op->nrof;
1775	/* Weight handling gets pretty funky. Since we are adding to	1705
1776	* tmp->nrof, we need to increase the weight.	1706	if (object *pl = tmp->visible_to ())
1777	*/	1707	esrv_update_item (UPD_NROF, pl, tmp);
		1708
1778	add_weight (this, op->weight * op->nrof);	1709	adjust_weight (this, op->total_weight ());
1779	SET_FLAG (op, FLAG_REMOVED);	1710
1780	op->destroy (); /* free the inserted object */	1711	op->destroy ();
1781	op = tmp;	1712	op = tmp;
1782	op->remove (); /* and fix old object's links */	1713	goto inserted;
1783	CLEAR_FLAG (op, FLAG_REMOVED);
1784	break;
1785	}	1714	}
1786		1715
1787	/* I assume combined objects have no inventory	1716	op->owner = 0; // it's his/hers now. period.
1788	* We add the weight - this object could have just been removed
1789	* (if it was possible to merge). calling remove_ob will subtract
1790	* the weight, so we need to add it in again, since we actually do
1791	* the linking below
1792	*/
1793	add_weight (this, op->weight * op->nrof);
1794	}
1795	else
1796	add_weight (this, (op->weight + op->carrying));
1797
1798	otmp = is_player_inv (this);
1799	if (otmp && otmp->contr)
1800	if (!QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1801	fix_player (otmp);
1802
1803	op->map = NULL;	1717	op->map = 0;
		1718	op->x = 0;
		1719	op->y = 0;
		1720
		1721	op->above = 0;
		1722	op->below = inv;
1804	op->env = this;	1723	op->env = this;
1805	op->above = NULL;
1806	op->below = NULL;
1807	op->x = 0, op->y = 0;
1808		1724
		1725	if (inv)
		1726	inv->above = op;
		1727
		1728	inv = op;
		1729
		1730	op->flag [FLAG_REMOVED] = 0;
		1731
		1732	if (object *pl = op->visible_to ())
		1733	esrv_send_item (pl, op);
		1734
		1735	adjust_weight (this, op->total_weight ());
		1736
		1737	inserted:
1809	/* reset the light list and los of the players on the map */	1738	/* reset the light list and los of the players on the map */
1810	if ((op->glow_radius != 0) && map)	1739	if (op->glow_radius && is_on_map ())
1811	{	1740	{
1812	#ifdef DEBUG_LIGHTS	1741	update_stats ();
1813	LOG (llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n", op->name);
1814	#endif /* DEBUG_LIGHTS */
1815	if (MAP_DARKNESS (map))
1816	update_all_los (map, x, y);	1742	update_all_los (map, x, y);
1817	}
1818
1819	/* Client has no idea of ordering so lets not bother ordering it here.
1820	* It sure simplifies this function...
1821	*/
1822	if (!inv)
1823	inv = op;
1824	else
1825	{	1743	}
1826	op->below = inv;	1744	else if (is_player ())
1827	op->below->above = op;	1745	// if this is a player's inventory, update stats
1828	inv = op;	1746	contr->queue_stats_update ();
1829	}	1747
		1748	INVOKE_OBJECT (INSERT, this);
1830		1749
1831	return op;	1750	return op;
1832	}	1751	}
1833		1752
1834	/*	1753	/*
…		…
1849	*	1768	*
1850	* MSW 2001-07-08: Check all objects on space, not just those below	1769	* MSW 2001-07-08: Check all objects on space, not just those below
1851	* object being inserted. insert_ob_in_map may not put new objects	1770	* object being inserted. insert_ob_in_map may not put new objects
1852	* on top.	1771	* on top.
1853	*/	1772	*/
1854
1855	int	1773	int
1856	check_move_on (object *op, object *originator)	1774	check_move_on (object *op, object *originator)
1857	{	1775	{
		1776	if (QUERY_FLAG (op, FLAG_NO_APPLY))
		1777	return 0;
		1778
1858	object *tmp;	1779	object *tmp;
1859	maptile *m = op->map;	1780	maptile *m = op->map;
1860	int x = op->x, y = op->y;	1781	int x = op->x, y = op->y;
1861		1782
1862	MoveType move_on, move_slow, move_block;	1783	mapspace &ms = m->at (x, y);
1863		1784
1864	if (QUERY_FLAG (op, FLAG_NO_APPLY))	1785	ms.update ();
1865	return 0;
1866		1786
1867	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);	1787	MoveType move_on = ms.move_on;
1868	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);	1788	MoveType move_slow = ms.move_slow;
1869	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);	1789	MoveType move_block = ms.move_block;
1870		1790
1871	/* if nothing on this space will slow op down or be applied,	1791	/* if nothing on this space will slow op down or be applied,
1872	* no need to do checking below. have to make sure move_type	1792	* no need to do checking below. have to make sure move_type
1873	* is set, as lots of objects don't have it set - we treat that	1793	* is set, as lots of objects don't have it set - we treat that
1874	* as walking.	1794	* as walking.
…		…
1885	return 0;	1805	return 0;
1886		1806
1887	/* The objects have to be checked from top to bottom.	1807	/* The objects have to be checked from top to bottom.
1888	* Hence, we first go to the top:	1808	* Hence, we first go to the top:
1889	*/	1809	*/
1890		1810	for (object *next, *tmp = ms.top; tmp; tmp = next)
1891	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL && tmp->above != NULL; tmp = tmp->above)
1892	{
1893	/* Trim the search when we find the first other spell effect
1894	* this helps performance so that if a space has 50 spell objects,
1895	* we don't need to check all of them.
1896	*/
1897	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG (tmp, FLAG_NO_PICK))
1898	break;
1899	}	1811	{
		1812	next = tmp->below;
1900		1813
1901	for (; tmp; tmp = tmp->below)
1902	{
1903	if (tmp == op)	1814	if (tmp == op)
1904	continue; /* Can't apply yourself */	1815	continue; /* Can't apply yourself */
1905		1816
1906	/* Check to see if one of the movement types should be slowed down.	1817	/* Check to see if one of the movement types should be slowed down.
1907	* Second check makes sure that the movement types not being slowed	1818	* Second check makes sure that the movement types not being slowed
…		…
1912	if (!QUERY_FLAG (op, FLAG_WIZPASS))	1823	if (!QUERY_FLAG (op, FLAG_WIZPASS))
1913	{	1824	{
1914	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||	1825	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||
1915	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))	1826	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))
1916	{	1827	{
1917
1918	float
1919	diff = tmp->move_slow_penalty * FABS (op->speed);	1828	float diff = tmp->move_slow_penalty * fabs (op->speed);
1920		1829
1921	if (op->type == PLAYER)	1830	if (op->is_player ())
1922	if ((QUERY_FLAG (tmp, FLAG_IS_HILLY) && find_skill_by_number (op, SK_CLIMBING)) ||	1831	if ((tmp->flag [FLAG_IS_HILLY ] && find_skill_by_number (op, SK_CLIMBING)) ||
1923	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))	1832	(tmp->flag [FLAG_IS_WOODED] && find_skill_by_number (op, SK_WOODSMAN)))
1924	diff /= 4.0;	1833	diff /= 4.0;
1925		1834
1926	op->speed_left -= diff;	1835	op->speed_left -= diff;
1927	}	1836	}
1928	}	1837	}
…		…
1951	/*	1860	/*
1952	* present_arch(arch, map, x, y) searches for any objects with	1861	* present_arch(arch, map, x, y) searches for any objects with
1953	* a matching archetype at the given map and coordinates.	1862	* a matching archetype at the given map and coordinates.
1954	* The first matching object is returned, or NULL if none.	1863	* The first matching object is returned, or NULL if none.
1955	*/	1864	*/
1956
1957	object *	1865	object *
1958	present_arch (const archetype *at, maptile *m, int x, int y)	1866	present_arch (const archetype *at, maptile *m, int x, int y)
1959	{	1867	{
1960	object *
1961	tmp;
1962
1963	if (m == NULL || out_of_map (m, x, y))	1868	if (!m || out_of_map (m, x, y))
1964	{	1869	{
1965	LOG (llevError, "Present_arch called outside map.\n");	1870	LOG (llevError, "Present_arch called outside map.\n");
1966	return NULL;	1871	return NULL;
1967	}	1872	}
1968	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)	1873
1969	if (tmp->arch == at)	1874	for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)
		1875	if (tmp->arch->archname == at->archname)
1970	return tmp;	1876	return tmp;
		1877
1971	return NULL;	1878	return NULL;
1972	}	1879	}
1973		1880
1974	/*	1881	/*
1975	* present(type, map, x, y) searches for any objects with	1882	* present(type, map, x, y) searches for any objects with
1976	* a matching type variable at the given map and coordinates.	1883	* a matching type variable at the given map and coordinates.
1977	* The first matching object is returned, or NULL if none.	1884	* The first matching object is returned, or NULL if none.
1978	*/	1885	*/
1979
1980	object *	1886	object *
1981	present (unsigned char type, maptile *m, int x, int y)	1887	present (unsigned char type, maptile *m, int x, int y)
1982	{	1888	{
1983	object *
1984	tmp;
1985
1986	if (out_of_map (m, x, y))	1889	if (out_of_map (m, x, y))
1987	{	1890	{
1988	LOG (llevError, "Present called outside map.\n");	1891	LOG (llevError, "Present called outside map.\n");
1989	return NULL;	1892	return NULL;
1990	}	1893	}
1991	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)	1894
		1895	for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)
1992	if (tmp->type == type)	1896	if (tmp->type == type)
1993	return tmp;	1897	return tmp;
		1898
1994	return NULL;	1899	return NULL;
1995	}	1900	}
1996		1901
1997	/*	1902	/*
1998	* present_in_ob(type, object) searches for any objects with	1903	* present_in_ob(type, object) searches for any objects with
1999	* a matching type variable in the inventory of the given object.	1904	* a matching type variable in the inventory of the given object.
2000	* The first matching object is returned, or NULL if none.	1905	* The first matching object is returned, or NULL if none.
2001	*/	1906	*/
2002
2003	object *	1907	object *
2004	present_in_ob (unsigned char type, const object *op)	1908	present_in_ob (unsigned char type, const object *op)
2005	{	1909	{
2006	object *
2007	tmp;
2008
2009	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1910	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
2010	if (tmp->type == type)	1911	if (tmp->type == type)
2011	return tmp;	1912	return tmp;
		1913
2012	return NULL;	1914	return NULL;
2013	}	1915	}
2014		1916
2015	/*	1917	/*
2016	* present_in_ob (type, str, object) searches for any objects with	1918	* present_in_ob (type, str, object) searches for any objects with
…		…
2024	* str is the string to match against. Note that we match against	1926	* str is the string to match against. Note that we match against
2025	* the object name, not the archetype name. this is so that the	1927	* the object name, not the archetype name. this is so that the
2026	* spell code can use one object type (force), but change it's name	1928	* spell code can use one object type (force), but change it's name
2027	* to be unique.	1929	* to be unique.
2028	*/	1930	*/
2029
2030	object *	1931	object *
2031	present_in_ob_by_name (int type, const char *str, const object *op)	1932	present_in_ob_by_name (int type, const char *str, const object *op)
2032	{	1933	{
2033	object *
2034	tmp;
2035
2036	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1934	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2037	{
2038	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))	1935	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))
2039	return tmp;	1936	return tmp;
2040	}	1937
2041	return NULL;	1938	return 0;
2042	}	1939	}
2043		1940
2044	/*	1941	/*
2045	* present_arch_in_ob(archetype, object) searches for any objects with	1942	* present_arch_in_ob(archetype, object) searches for any objects with
2046	* a matching archetype in the inventory of the given object.	1943	* a matching archetype in the inventory of the given object.
2047	* The first matching object is returned, or NULL if none.	1944	* The first matching object is returned, or NULL if none.
2048	*/	1945	*/
2049
2050	object *	1946	object *
2051	present_arch_in_ob (const archetype *at, const object *op)	1947	present_arch_in_ob (const archetype *at, const object *op)
2052	{	1948	{
2053	object *
2054	tmp;
2055
2056	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1949	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2057	if (tmp->arch == at)	1950	if (tmp->arch->archname == at->archname)
2058	return tmp;	1951	return tmp;
		1952
2059	return NULL;	1953	return NULL;
2060	}	1954	}
2061		1955
2062	/*	1956	/*
2063	* activate recursively a flag on an object inventory	1957	* activate recursively a flag on an object inventory
2064	*/	1958	*/
2065	void	1959	void
2066	flag_inv (object *op, int flag)	1960	flag_inv (object *op, int flag)
2067	{	1961	{
2068	object *
2069	tmp;
2070
2071	if (op->inv)
2072	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1962	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2073	{	1963	{
2074	SET_FLAG (tmp, flag);	1964	SET_FLAG (tmp, flag);
2075	flag_inv (tmp, flag);	1965	flag_inv (tmp, flag);
2076	}	1966	}
2077	} /*	1967	}
		1968
		1969	/*
2078	* desactivate recursively a flag on an object inventory	1970	* deactivate recursively a flag on an object inventory
2079	*/	1971	*/
2080	void	1972	void
2081	unflag_inv (object *op, int flag)	1973	unflag_inv (object *op, int flag)
2082	{	1974	{
2083	object *
2084	tmp;
2085
2086	if (op->inv)
2087	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1975	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2088	{	1976	{
2089	CLEAR_FLAG (tmp, flag);	1977	CLEAR_FLAG (tmp, flag);
2090	unflag_inv (tmp, flag);	1978	unflag_inv (tmp, flag);
2091	}	1979	}
2092	}
2093
2094	/*
2095	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in
2096	* all it's inventory (recursively).
2097	* If checksums are used, a player will get set_cheat called for
2098	* him/her-self and all object carried by a call to this function.
2099	*/
2100
2101	void
2102	set_cheat (object *op)
2103	{
2104	SET_FLAG (op, FLAG_WAS_WIZ);
2105	flag_inv (op, FLAG_WAS_WIZ);
2106	}	1980	}
2107		1981
2108	/*	1982	/*
2109	* find_free_spot(object, map, x, y, start, stop) will search for	1983	* find_free_spot(object, map, x, y, start, stop) will search for
2110	* a spot at the given map and coordinates which will be able to contain	1984	* a spot at the given map and coordinates which will be able to contain
…		…
2112	* to search (see the freearr_x/y[] definition).	1986	* to search (see the freearr_x/y[] definition).
2113	* It returns a random choice among the alternatives found.	1987	* It returns a random choice among the alternatives found.
2114	* start and stop are where to start relative to the free_arr array (1,9	1988	* start and stop are where to start relative to the free_arr array (1,9
2115	* does all 4 immediate directions). This returns the index into the	1989	* does all 4 immediate directions). This returns the index into the
2116	* array of the free spot, -1 if no spot available (dir 0 = x,y)	1990	* array of the free spot, -1 if no spot available (dir 0 = x,y)
2117	* Note - this only checks to see if there is space for the head of the
2118	* object - if it is a multispace object, this should be called for all
2119	* pieces.
2120	* Note2: This function does correctly handle tiled maps, but does not	1991	* Note: This function does correctly handle tiled maps, but does not
2121	* inform the caller. However, insert_ob_in_map will update as	1992	* inform the caller. However, insert_ob_in_map will update as
2122	* necessary, so the caller shouldn't need to do any special work.	1993	* necessary, so the caller shouldn't need to do any special work.
2123	* Note - updated to take an object instead of archetype - this is necessary	1994	* Note - updated to take an object instead of archetype - this is necessary
2124	* because arch_blocked (now ob_blocked) needs to know the movement type	1995	* because arch_blocked (now ob_blocked) needs to know the movement type
2125	* to know if the space in question will block the object. We can't use	1996	* to know if the space in question will block the object. We can't use
2126	* the archetype because that isn't correct if the monster has been	1997	* the archetype because that isn't correct if the monster has been
2127	* customized, changed states, etc.	1998	* customized, changed states, etc.
2128	*/	1999	*/
2129
2130	int	2000	int
2131	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)	2001	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)
2132	{	2002	{
2133	int
2134	i,
2135	index = 0, flag;
2136	static int
2137	altern[SIZEOFFREE];	2003	int altern[SIZEOFFREE];
		2004	int index = 0, flag;
2138		2005
2139	for (i = start; i < stop; i++)	2006	for (int i = start; i < stop; i++)
2140	{	2007	{
2141	flag = ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]);	2008	mapxy pos (m, x, y); pos.move (i);
2142	if (!flag)	2009
		2010	if (!pos.normalise ())
		2011	continue;
		2012
		2013	mapspace &ms = *pos;
		2014
		2015	if (ms.flags () & P_IS_ALIVE)
		2016	continue;
		2017
		2018	/* However, often
		2019	* ob doesn't have any move type (when used to place exits)
		2020	* so the AND operation in OB_TYPE_MOVE_BLOCK doesn't work.
		2021	*/
		2022	if (ob && ob->move_type == 0 && ms.move_block != MOVE_ALL)
		2023	{
2143	altern[index++] = i;	2024	altern [index++] = i;
		2025	continue;
		2026	}
2144		2027
2145	/* Basically, if we find a wall on a space, we cut down the search size.	2028	/* Basically, if we find a wall on a space, we cut down the search size.
2146	* In this way, we won't return spaces that are on another side of a wall.	2029	* In this way, we won't return spaces that are on another side of a wall.
2147	* This mostly work, but it cuts down the search size in all directions -	2030	* This mostly work, but it cuts down the search size in all directions -
2148	* if the space being examined only has a wall to the north and empty	2031	* if the space being examined only has a wall to the north and empty
2149	* spaces in all the other directions, this will reduce the search space	2032	* spaces in all the other directions, this will reduce the search space
2150	* to only the spaces immediately surrounding the target area, and	2033	* to only the spaces immediately surrounding the target area, and
2151	* won't look 2 spaces south of the target space.	2034	* won't look 2 spaces south of the target space.
2152	*/	2035	*/
2153	else if ((flag & AB_NO_PASS) && maxfree[i] < stop)	2036	if (ms.move_block == MOVE_ALL && maxfree[i] < stop)
		2037	{
2154	stop = maxfree[i];	2038	stop = maxfree[i];
		2039	continue;
		2040	}
		2041
		2042	/* Note it is intentional that we check ob - the movement type of the
		2043	* head of the object should correspond for the entire object.
		2044	*/
		2045	if (OB_TYPE_MOVE_BLOCK (ob, ms.move_block))
		2046	continue;
		2047
		2048	if (ob->blocked (pos.m, pos.x, pos.y))
		2049	continue;
		2050
		2051	altern [index++] = i;
2155	}	2052	}
		2053
2156	if (!index)	2054	if (!index)
2157	return -1;	2055	return -1;
		2056
2158	return altern[RANDOM () % index];	2057	return altern [rndm (index)];
2159	}	2058	}
2160		2059
2161	/*	2060	/*
2162	* find_first_free_spot(archetype, maptile, x, y) works like	2061	* find_first_free_spot(archetype, maptile, x, y) works like
2163	* find_free_spot(), but it will search max number of squares.	2062	* find_free_spot(), but it will search max number of squares.
2164	* But it will return the first available spot, not a random choice.	2063	* But it will return the first available spot, not a random choice.
2165	* Changed 0.93.2: Have it return -1 if there is no free spot available.	2064	* Changed 0.93.2: Have it return -1 if there is no free spot available.
2166	*/	2065	*/
2167
2168	int	2066	int
2169	find_first_free_spot (const object *ob, maptile *m, int x, int y)	2067	find_first_free_spot (const object *ob, maptile *m, int x, int y)
2170	{	2068	{
2171	int
2172	i;
2173
2174	for (i = 0; i < SIZEOFFREE; i++)	2069	for (int i = 0; i < SIZEOFFREE; i++)
2175	{
2176	if (!ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]))	2070	if (!ob->blocked (m, x + freearr_x[i], y + freearr_y[i]))
2177	return i;	2071	return i;
2178	}	2072
2179	return -1;	2073	return -1;
2180	}	2074	}
2181		2075
2182	/*	2076	/*
2183	* The function permute(arr, begin, end) randomly reorders the array	2077	* The function permute(arr, begin, end) randomly reorders the array
2184	* arr[begin..end-1].	2078	* arr[begin..end-1].
		2079	* now uses a fisher-yates shuffle, old permute was broken
2185	*/	2080	*/
2186	static void	2081	static void
2187	permute (int *arr, int begin, int end)	2082	permute (int *arr, int begin, int end)
2188	{	2083	{
2189	int	2084	arr += begin;
2190	i,
2191	j,
2192	tmp,
2193	len;
2194
2195	len = end - begin;	2085	end -= begin;
2196	for (i = begin; i < end; i++)
2197	{
2198	j = begin + RANDOM () % len;
2199		2086
2200	tmp = arr[i];	2087	while (--end)
2201	arr[i] = arr[j];	2088	swap (arr [end], arr [rndm (end + 1)]);
2202	arr[j] = tmp;
2203	}
2204	}	2089	}
2205		2090
2206	/* new function to make monster searching more efficient, and effective!	2091	/* new function to make monster searching more efficient, and effective!
2207	* This basically returns a randomized array (in the passed pointer) of	2092	* This basically returns a randomized array (in the passed pointer) of
2208	* the spaces to find monsters. In this way, it won't always look for	2093	* the spaces to find monsters. In this way, it won't always look for
…		…
2211	* the 3x3 area will be searched, just not in a predictable order.	2096	* the 3x3 area will be searched, just not in a predictable order.
2212	*/	2097	*/
2213	void	2098	void
2214	get_search_arr (int *search_arr)	2099	get_search_arr (int *search_arr)
2215	{	2100	{
2216	int	2101	int i;
2217	i;
2218		2102
2219	for (i = 0; i < SIZEOFFREE; i++)	2103	for (i = 0; i < SIZEOFFREE; i++)
2220	{
2221	search_arr[i] = i;	2104	search_arr[i] = i;
2222	}
2223		2105
2224	permute (search_arr, 1, SIZEOFFREE1 + 1);	2106	permute (search_arr, 1, SIZEOFFREE1 + 1);
2225	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);	2107	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);
2226	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);	2108	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);
2227	}	2109	}
…		…
2236	* Perhaps incorrectly, but I'm making the assumption that exclude	2118	* Perhaps incorrectly, but I'm making the assumption that exclude
2237	* is actually want is going to try and move there. We need this info	2119	* is actually want is going to try and move there. We need this info
2238	* because we have to know what movement the thing looking to move	2120	* because we have to know what movement the thing looking to move
2239	* there is capable of.	2121	* there is capable of.
2240	*/	2122	*/
2241
2242	int	2123	int
2243	find_dir (maptile *m, int x, int y, object *exclude)	2124	find_dir (maptile *m, int x, int y, object *exclude)
2244	{	2125	{
2245	int
2246	i,
2247	max = SIZEOFFREE, mflags;	2126	int max = SIZEOFFREE, mflags;
2248
2249	sint16 nx, ny;
2250	object *
2251	tmp;
2252	maptile *
2253	mp;
2254
2255	MoveType blocked, move_type;	2127	MoveType move_type;
2256		2128
2257	if (exclude && exclude->head)	2129	if (exclude && exclude->head_ () != exclude)
2258	{	2130	{
2259	exclude = exclude->head;	2131	exclude = exclude->head;
2260	move_type = exclude->move_type;	2132	move_type = exclude->move_type;
2261	}	2133	}
2262	else	2134	else
2263	{	2135	{
2264	/* If we don't have anything, presume it can use all movement types. */	2136	/* If we don't have anything, presume it can use all movement types. */
2265	move_type = MOVE_ALL;	2137	move_type = MOVE_ALL;
2266	}	2138	}
2267		2139
2268	for (i = 1; i < max; i++)	2140	for (int i = 1; i < max; i++)
2269	{	2141	{
2270	mp = m;	2142	mapxy pos (m, x, y);
2271	nx = x + freearr_x[i];	2143	pos.move (i);
2272	ny = y + freearr_y[i];
2273		2144
2274	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);	2145	if (!pos.normalise ())
2275	if (mflags & P_OUT_OF_MAP)
2276	{
2277	max = maxfree[i];	2146	max = maxfree[i];
2278	}
2279	else	2147	else
2280	{	2148	{
2281	blocked = GET_MAP_MOVE_BLOCK (mp, nx, ny);	2149	mapspace &ms = *pos;
2282		2150
2283	if ((move_type & blocked) == move_type)	2151	if ((move_type & ms.move_block) == move_type)
		2152	max = maxfree [i];
		2153	else if (ms.flags () & P_IS_ALIVE)
2284	{	2154	{
2285	max = maxfree[i];	2155	for (object *tmp = ms.bot; tmp; tmp = tmp->above)
2286	}	2156	if ((tmp->flag [FLAG_MONSTER] || tmp->is_player ())
2287	else if (mflags & P_IS_ALIVE)	2157	&& (tmp != exclude || (tmp->head_ () != tmp && tmp->head_ () != exclude)))
2288	{
2289	for (tmp = GET_MAP_OB (mp, nx, ny); tmp != NULL; tmp = tmp->above)
2290	{
2291	if ((QUERY_FLAG (tmp, FLAG_MONSTER) || tmp->type == PLAYER) && (tmp != exclude || (tmp->head && tmp->head != exclude)))
2292	{
2293	break;
2294	}
2295	}
2296	if (tmp)
2297	{
2298	return freedir[i];	2158	return freedir [i];
2299	}
2300	}	2159	}
2301	}	2160	}
2302	}	2161	}
		2162
2303	return 0;	2163	return 0;
2304	}	2164	}
2305		2165
2306	/*	2166	/*
2307	* distance(object 1, object 2) will return the square of the	2167	* distance(object 1, object 2) will return the square of the
2308	* distance between the two given objects.	2168	* distance between the two given objects.
2309	*/	2169	*/
2310
2311	int	2170	int
2312	distance (const object *ob1, const object *ob2)	2171	distance (const object *ob1, const object *ob2)
2313	{	2172	{
2314	int
2315	i;
2316
2317	i = (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);	2173	return (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);
2318	return i;
2319	}	2174	}
2320		2175
2321	/*	2176	/*
2322	* find_dir_2(delta-x,delta-y) will return a direction in which	2177	* find_dir_2(delta-x,delta-y) will return a direction in which
2323	* an object which has subtracted the x and y coordinates of another	2178	* an object which has subtracted the x and y coordinates of another
2324	* object, needs to travel toward it.	2179	* object, needs to travel toward it.
2325	*/	2180	*/
2326
2327	int	2181	int
2328	find_dir_2 (int x, int y)	2182	find_dir_2 (int x, int y)
2329	{	2183	{
2330	int	2184	int q;
2331	q;
2332		2185
2333	if (y)	2186	if (y)
2334	q = x * 100 / y;	2187	q = x * 100 / y;
2335	else if (x)	2188	else if (x)
2336	q = -300 * x;	2189	q = -300 * x;
…		…
2361		2214
2362	return 3;	2215	return 3;
2363	}	2216	}
2364		2217
2365	/*	2218	/*
2366	* absdir(int): Returns a number between 1 and 8, which represent
2367	* the "absolute" direction of a number (it actually takes care of
2368	* "overflow" in previous calculations of a direction).
2369	*/
2370
2371	int
2372	absdir (int d)
2373	{
2374	while (d < 1)
2375	d += 8;
2376	while (d > 8)
2377	d -= 8;
2378	return d;
2379	}
2380
2381	/*
2382	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is	2219	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is
2383	* between two directions (which are expected to be absolute (see absdir())	2220	* between two directions (which are expected to be absolute (see absdir())
2384	*/	2221	*/
2385
2386	int	2222	int
2387	dirdiff (int dir1, int dir2)	2223	dirdiff (int dir1, int dir2)
2388	{	2224	{
2389	int	2225	int d;
2390	d;
2391		2226
2392	d = abs (dir1 - dir2);	2227	d = abs (dir1 - dir2);
2393	if (d > 4)	2228	if (d > 4)
2394	d = 8 - d;	2229	d = 8 - d;
		2230
2395	return d;	2231	return d;
2396	}	2232	}
2397		2233
2398	/* peterm:	2234	/* peterm:
2399	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.	2235	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.
…		…
2402	* This basically means that if direction is 15, then it could either go	2238	* This basically means that if direction is 15, then it could either go
2403	* direction 4, 14, or 16 to get back to where we are.	2239	* direction 4, 14, or 16 to get back to where we are.
2404	* Moved from spell_util.c to object.c with the other related direction	2240	* Moved from spell_util.c to object.c with the other related direction
2405	* functions.	2241	* functions.
2406	*/	2242	*/
2407
2408	int
2409	reduction_dir[SIZEOFFREE][3] = {	2243	static const int reduction_dir[SIZEOFFREE][3] = {
2410	{0, 0, 0}, /* 0 */	2244	{0, 0, 0}, /* 0 */
2411	{0, 0, 0}, /* 1 */	2245	{0, 0, 0}, /* 1 */
2412	{0, 0, 0}, /* 2 */	2246	{0, 0, 0}, /* 2 */
2413	{0, 0, 0}, /* 3 */	2247	{0, 0, 0}, /* 3 */
2414	{0, 0, 0}, /* 4 */	2248	{0, 0, 0}, /* 4 */
…		…
2462	* find a path to that monster that we found. If not,	2296	* find a path to that monster that we found. If not,
2463	* we don't bother going toward it. Returns 1 if we	2297	* we don't bother going toward it. Returns 1 if we
2464	* can see a direct way to get it	2298	* can see a direct way to get it
2465	* Modified to be map tile aware -.MSW	2299	* Modified to be map tile aware -.MSW
2466	*/	2300	*/
2467
2468
2469	int	2301	int
2470	can_see_monsterP (maptile *m, int x, int y, int dir)	2302	can_see_monsterP (maptile *m, int x, int y, int dir)
2471	{	2303	{
2472	sint16 dx, dy;	2304	sint16 dx, dy;
2473	int
2474	mflags;	2305	int mflags;
2475		2306
2476	if (dir < 0)	2307	if (dir < 0)
2477	return 0; /* exit condition: invalid direction */	2308	return 0; /* exit condition: invalid direction */
2478		2309
2479	dx = x + freearr_x[dir];	2310	dx = x + freearr_x[dir];
…		…
2492	return 0;	2323	return 0;
2493		2324
2494	/* yes, can see. */	2325	/* yes, can see. */
2495	if (dir < 9)	2326	if (dir < 9)
2496	return 1;	2327	return 1;
		2328
2497	return can_see_monsterP (m, x, y, reduction_dir[dir][0]) |	2329	return can_see_monsterP (m, x, y, reduction_dir[dir][0])
2498	can_see_monsterP (m, x, y, reduction_dir[dir][1]) | can_see_monsterP (m, x, y, reduction_dir[dir][2]);	2330	| can_see_monsterP (m, x, y, reduction_dir[dir][1])
		2331	| can_see_monsterP (m, x, y, reduction_dir[dir][2]);
2499	}	2332	}
2500
2501
2502		2333
2503	/*	2334	/*
2504	* can_pick(picker, item): finds out if an object is possible to be	2335	* can_pick(picker, item): finds out if an object is possible to be
2505	* picked up by the picker. Returnes 1 if it can be	2336	* picked up by the picker. Returnes 1 if it can be
2506	* picked up, otherwise 0.	2337	* picked up, otherwise 0.
…		…
2508	* Cf 0.91.3 - don't let WIZ's pick up anything - will likely cause	2339	* Cf 0.91.3 - don't let WIZ's pick up anything - will likely cause
2509	* core dumps if they do.	2340	* core dumps if they do.
2510	*	2341	*
2511	* Add a check so we can't pick up invisible objects (0.93.8)	2342	* Add a check so we can't pick up invisible objects (0.93.8)
2512	*/	2343	*/
2513
2514	int	2344	int
2515	can_pick (const object *who, const object *item)	2345	can_pick (const object *who, const object *item)
2516	{	2346	{
2517	return /*QUERY_FLAG(who,FLAG_WIZ)|| */	2347	return /*QUERY_FLAG(who,FLAG_WIZ)|| */
2518	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&	2348	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&
2519	!QUERY_FLAG (item, FLAG_ALIVE) && !item->invisible && (who->type == PLAYER || item->weight < who->weight / 3));	2349	!QUERY_FLAG (item, FLAG_ALIVE) && !item->invisible && (who->is_player () || item->weight < who->weight / 3));
2520	}	2350	}
2521
2522		2351
2523	/*	2352	/*
2524	* create clone from object to another	2353	* create clone from object to another
2525	*/	2354	*/
2526	object *	2355	object *
2527	object_create_clone (object *asrc)	2356	object::deep_clone ()
2528	{	2357	{
2529	object *	2358	assert (("deep_clone called on non-head object", is_head ()));
2530	dst = NULL, *tmp, *src, *part, *prev, *item;
2531		2359
2532	if (!asrc)	2360	object *dst = clone ();
2533	return NULL;
2534	src = asrc;
2535	if (src->head)
2536	src = src->head;
2537		2361
2538	prev = NULL;	2362	object *prev = dst;
2539	for (part = src; part; part = part->more)	2363	for (object *part = this->more; part; part = part->more)
2540	{	2364	{
2541	tmp = get_object ();	2365	object *tmp = part->clone ();
2542	copy_object (part, tmp);
2543	tmp->x -= src->x;
2544	tmp->y -= src->y;
2545	if (!part->head)
2546	{
2547	dst = tmp;
2548	tmp->head = NULL;
2549	}
2550	else
2551	{
2552	tmp->head = dst;	2366	tmp->head = dst;
2553	}
2554	tmp->more = NULL;
2555	if (prev)
2556	prev->more = tmp;	2367	prev->more = tmp;
2557	prev = tmp;	2368	prev = tmp;
2558	}	2369	}
2559		2370
2560	for (item = src->inv; item; item = item->below)	2371	for (object *item = inv; item; item = item->below)
2561	insert_ob_in_ob (object_create_clone (item), dst);	2372	insert_ob_in_ob (item->deep_clone (), dst);
2562		2373
2563	return dst;	2374	return dst;
2564	}
2565
2566	/* GROS - Creates an object using a string representing its content. */
2567	/* Basically, we save the content of the string to a temp file, then call */
2568	/* load_object on it. I admit it is a highly inefficient way to make things, */
2569	/* but it was simple to make and allows reusing the load_object function. */
2570	/* Remember not to use load_object_str in a time-critical situation. */
2571	/* Also remember that multiparts objects are not supported for now. */
2572
2573	object *
2574	load_object_str (const char *obstr)
2575	{
2576	object *op;
2577	char filename[MAX_BUF];
2578
2579	sprintf (filename, "%s/cfloadobstr2044", settings.tmpdir);
2580
2581	FILE *tempfile = fopen (filename, "w");
2582
2583	if (tempfile == NULL)
2584	{
2585	LOG (llevError, "Error - Unable to access load object temp file\n");
2586	return NULL;
2587	}
2588
2589	fprintf (tempfile, obstr);
2590	fclose (tempfile);
2591
2592	op = get_object ();
2593
2594	object_thawer thawer (filename);
2595
2596	if (thawer)
2597	load_object (thawer, op, 0);
2598
2599	LOG (llevDebug, " load str completed, object=%s\n", &op->name);
2600	CLEAR_FLAG (op, FLAG_REMOVED);
2601
2602	return op;
2603	}	2375	}
2604		2376
2605	/* This returns the first object in who's inventory that	2377	/* This returns the first object in who's inventory that
2606	* has the same type and subtype match.	2378	* has the same type and subtype match.
2607	* returns NULL if no match.	2379	* returns NULL if no match.
2608	*/	2380	*/
2609	object *	2381	object *
2610	find_obj_by_type_subtype (const object *who, int type, int subtype)	2382	find_obj_by_type_subtype (const object *who, int type, int subtype)
2611	{	2383	{
2612	object *tmp;
2613
2614	for (tmp = who->inv; tmp; tmp = tmp->below)	2384	for (object *tmp = who->inv; tmp; tmp = tmp->below)
2615	if (tmp->type == type && tmp->subtype == subtype)	2385	if (tmp->type == type && tmp->subtype == subtype)
2616	return tmp;	2386	return tmp;
2617		2387
2618	return NULL;
2619	}
2620
2621	/* If ob has a field named key, return the link from the list,
2622	* otherwise return NULL.
2623	*
2624	* key must be a passed in shared string - otherwise, this won't
2625	* do the desired thing.
2626	*/
2627	key_value *
2628	get_ob_key_link (const object *ob, const char *key)
2629	{
2630	key_value *link;
2631
2632	for (link = ob->key_values; link != NULL; link = link->next)
2633	if (link->key == key)
2634	return link;
2635
2636	return NULL;
2637	}
2638
2639	/*
2640	* Returns the value of op has an extra_field for key, or NULL.
2641	*
2642	* The argument doesn't need to be a shared string.
2643	*
2644	* The returned string is shared.
2645	*/
2646	const char *
2647	get_ob_key_value (const object *op, const char *const key)
2648	{
2649	key_value *link;
2650	shstr_cmp canonical_key (key);
2651
2652	if (!canonical_key)
2653	{
2654	/* 1. There being a field named key on any object
2655	* implies there'd be a shared string to find.
2656	* 2. Since there isn't, no object has this field.
2657	* 3. Therefore, *this* object doesn't have this field.
2658	*/
2659	return 0;
2660	}
2661
2662	/* This is copied from get_ob_key_link() above -
2663	* only 4 lines, and saves the function call overhead.
2664	*/
2665	for (link = op->key_values; link; link = link->next)
2666	if (link->key == canonical_key)
2667	return link->value;
2668
2669	return 0;	2388	return 0;
2670	}	2389	}
2671		2390
2672		2391	shstr_tmp
2673	/*	2392	object::kv_get (shstr_tmp key) const
2674	* Updates the canonical_key in op to value.
2675	*
2676	* canonical_key is a shared string (value doesn't have to be).
2677	*
2678	* Unless add_key is TRUE, it won't add fields, only change the value of existing
2679	* keys.
2680	*
2681	* Returns TRUE on success.
2682	*/
2683	int
2684	set_ob_key_value_s (object *op, const shstr & canonical_key, const char *value, int add_key)
2685	{	2393	{
2686	key_value *	2394	for (key_value *kv = key_values; kv; kv = kv->next)
2687	field = NULL, *last = NULL;	2395	if (kv->key == key)
		2396	return kv->value;
2688		2397
2689	for (field = op->key_values; field != NULL; field = field->next)	2398	return shstr ();
2690	{	2399	}
2691	if (field->key != canonical_key)	2400
		2401	void
		2402	object::kv_set (shstr_tmp key, shstr_tmp value)
		2403	{
		2404	for (key_value *kv = key_values; kv; kv = kv->next)
		2405	if (kv->key == key)
2692	{	2406	{
2693	last = field;	2407	kv->value = value;
2694	continue;	2408	return;
2695	}	2409	}
2696		2410
2697	if (value)	2411	key_value *kv = new key_value;
2698	field->value = value;	2412
2699	else	2413	kv->next = key_values;
		2414	kv->key = key;
		2415	kv->value = value;
		2416
		2417	key_values = kv;
		2418	}
		2419
		2420	void
		2421	object::kv_del (shstr_tmp key)
		2422	{
		2423	for (key_value **kvp = &key_values; *kvp; kvp = &(*kvp)->next)
		2424	if ((*kvp)->key == key)
2700	{	2425	{
2701	/* Basically, if the archetype has this key set,	2426	key_value *kv = *kvp;
2702	* we need to store the null value so when we save	2427	*kvp = (*kvp)->next;
2703	* it, we save the empty value so that when we load,	2428	delete kv;
2704	* we get this value back again.	2429	return;
2705	*/
2706	if (get_ob_key_link (&op->arch->clone, canonical_key))
2707	field->value = 0;
2708	else
2709	{
2710	if (last)
2711	last->next = field->next;
2712	else
2713	op->key_values = field->next;
2714
2715	delete field;
2716	}
2717	}	2430	}
2718	return TRUE;
2719	}
2720	/* IF we get here, key doesn't exist */
2721
2722	/* No field, we'll have to add it. */
2723
2724	if (!add_key)
2725	{
2726	return FALSE;
2727	}
2728	/* There isn't any good reason to store a null
2729	* value in the key/value list. If the archetype has
2730	* this key, then we should also have it, so shouldn't
2731	* be here. If user wants to store empty strings,
2732	* should pass in ""
2733	*/
2734	if (value == NULL)
2735	return TRUE;
2736
2737	field = new key_value;
2738
2739	field->key = canonical_key;
2740	field->value = value;
2741	/* Usual prepend-addition. */
2742	field->next = op->key_values;
2743	op->key_values = field;
2744
2745	return TRUE;
2746	}
2747
2748	/*
2749	* Updates the key in op to value.
2750	*
2751	* If add_key is FALSE, this will only update existing keys,
2752	* and not add new ones.
2753	* In general, should be little reason FALSE is ever passed in for add_key
2754	*
2755	* Returns TRUE on success.
2756	*/
2757	int
2758	set_ob_key_value (object *op, const char *key, const char *value, int add_key)
2759	{
2760	shstr key_ (key);
2761
2762	return set_ob_key_value_s (op, key_, value, add_key);
2763	}	2431	}
2764		2432
2765	object::depth_iterator::depth_iterator (object *container)	2433	object::depth_iterator::depth_iterator (object *container)
2766	: iterator_base (container)	2434	: iterator_base (container)
2767	{	2435	{
…		…
2781	}	2449	}
2782	else	2450	else
2783	item = item->env;	2451	item = item->env;
2784	}	2452	}
2785		2453
		2454	const char *
		2455	object::flag_desc (char *desc, int len) const
		2456	{
		2457	char *p = desc;
		2458	bool first = true;
		2459
		2460	*p = 0;
		2461
		2462	for (int i = 0; i < NUM_FLAGS; i++)
		2463	{
		2464	if (len <= 10) // magic constant!
		2465	{
		2466	snprintf (p, len, ",...");
		2467	break;
		2468	}
		2469
		2470	if (flag [i])
		2471	{
		2472	int cnt = snprintf (p, len, "%s%d", first ? "" : ",", i);
		2473	len -= cnt;
		2474	p += cnt;
		2475	first = false;
		2476	}
		2477	}
		2478
		2479	return desc;
		2480	}
		2481
2786	// return a suitable string describing an objetc in enough detail to find it	2482	// return a suitable string describing an object in enough detail to find it
2787	const char *	2483	const char *
2788	object::debug_desc (char *info) const	2484	object::debug_desc (char *info) const
2789	{	2485	{
		2486	char flagdesc[512];
2790	char info2[256 * 3];	2487	char info2[256 * 4];
2791	char *p = info;	2488	char *p = info;
2792		2489
2793	p += snprintf (p, 256, "%d=\"%s%s%s\"",	2490	p += snprintf (p, 512, "{cnt:%d,uuid:%s,name:\"%s\"%s%s%s,flags:[%s],type:%d}",
2794	count,	2491	count,
		2492	uuid.c_str (),
2795	&name,	2493	&name,
2796	title ? " " : "",	2494	title ? ",title:\"" : "",
2797	title ? (const char *)title : "");	2495	title ? (const char *)title : "",
		2496	title ? "\"" : "",
		2497	flag_desc (flagdesc, 512), type);
2798		2498
2799	if (env)	2499	if (!flag[FLAG_REMOVED] && env)
2800	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));	2500	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));
2801		2501
2802	if (map)	2502	if (map)
2803	p += snprintf (p, 256, "(on %s@%d+%d)", map->path, x, y);	2503	p += snprintf (p, 256, "(on %s@%d+%d)", &map->path, x, y);
2804		2504
2805	return info;	2505	return info;
2806	}	2506	}
2807		2507
2808	const char *	2508	const char *
2809	object::debug_desc () const	2509	object::debug_desc () const
2810	{	2510	{
2811	static char info[256 * 3];	2511	static char info[3][256 * 4];
		2512	static int info_idx;
		2513
2812	return debug_desc (info);	2514	return debug_desc (info [++info_idx % 3]);
2813	}	2515	}
2814		2516
		2517	struct region *
		2518	object::region () const
		2519	{
		2520	return map ? map->region (x, y)
		2521	: region::default_region ();
		2522	}
		2523
		2524	void
		2525	object::open_container (object *new_container)
		2526	{
		2527	if (container == new_container)
		2528	return;
		2529
		2530	object *old_container = container;
		2531
		2532	if (old_container)
		2533	{
		2534	if (INVOKE_OBJECT (CLOSE, old_container, ARG_OBJECT (this)))
		2535	return;
		2536
		2537	#if 0
		2538	// remove the "Close old_container" object.
		2539	if (object *closer = old_container->inv)
		2540	if (closer->type == CLOSE_CON)
		2541	closer->destroy ();
		2542	#endif
		2543
		2544	// make sure the container is available
		2545	esrv_send_item (this, old_container);
		2546
		2547	old_container->flag [FLAG_APPLIED] = false;
		2548	container = 0;
		2549
		2550	// client needs item update to make it work, client bug requires this to be separate
		2551	esrv_update_item (UPD_FLAGS, this, old_container);
		2552
		2553	new_draw_info_format (NDI_UNIQUE, 0, this, "You close %s.", old_container->query_name ());
		2554	play_sound (sound_find ("chest_close"));
		2555	}
		2556
		2557	if (new_container)
		2558	{
		2559	if (INVOKE_OBJECT (OPEN, new_container, ARG_OBJECT (this)))
		2560	return;
		2561
		2562	// TODO: this does not seem to serve any purpose anymore?
		2563	#if 0
		2564	// insert the "Close Container" object.
		2565	if (archetype *closer = new_container->other_arch)
		2566	{
		2567	object *closer = new_container->other_arch->instance ();
		2568	closer->flag [FLAG_NO_MAP_SAVE] = 1;
		2569	new_container->insert (closer);
		2570	}
		2571	#endif
		2572
		2573	new_draw_info_format (NDI_UNIQUE, 0, this, "You open %s.", new_container->query_name ());
		2574
		2575	// make sure the container is available, client bug requires this to be separate
		2576	esrv_send_item (this, new_container);
		2577
		2578	new_container->flag [FLAG_APPLIED] = true;
		2579	container = new_container;
		2580
		2581	// client needs flag change
		2582	esrv_update_item (UPD_FLAGS, this, new_container);
		2583	esrv_send_inventory (this, new_container);
		2584	play_sound (sound_find ("chest_open"));
		2585	}
		2586	// else if (!old_container->env && contr && contr->ns)
		2587	// contr->ns->floorbox_reset ();
		2588	}
		2589
		2590	object *
		2591	object::force_find (shstr_tmp name)
		2592	{
		2593	/* cycle through his inventory to look for the MARK we want to
		2594	* place
		2595	*/
		2596	for (object *tmp = inv; tmp; tmp = tmp->below)
		2597	if (tmp->type == FORCE && tmp->slaying == name)
		2598	return splay (tmp);
		2599
		2600	return 0;
		2601	}
		2602
		2603	//-GPL
		2604
		2605	void
		2606	object::force_set_timer (int duration)
		2607	{
		2608	this->duration = 1;
		2609	this->speed_left = -1.f;
		2610
		2611	this->set_speed (duration ? 1.f / duration : 0.f);
		2612	}
		2613
		2614	object *
		2615	object::force_add (shstr_tmp name, int duration)
		2616	{
		2617	if (object *force = force_find (name))
		2618	force->destroy ();
		2619
		2620	object *force = get_archetype (FORCE_NAME);
		2621
		2622	force->slaying = name;
		2623	force->force_set_timer (duration);
		2624	force->flag [FLAG_APPLIED] = true;
		2625
		2626	return insert (force);
		2627	}
		2628
		2629	void
		2630	object::play_sound (faceidx sound) const
		2631	{
		2632	if (!sound)
		2633	return;
		2634
		2635	if (is_on_map ())
		2636	map->play_sound (sound, x, y);
		2637	else if (object *pl = in_player ())
		2638	pl->contr->play_sound (sound);
		2639	}
		2640
		2641	void
		2642	object::say_msg (const char *msg) const
		2643	{
		2644	if (is_on_map ())
		2645	map->say_msg (msg, x, y);
		2646	else if (object *pl = in_player ())
		2647	pl->contr->play_sound (sound);
		2648	}
		2649
		2650	void
		2651	object::make_noise ()
		2652	{
		2653	// we do not model noise in the map, so instead put
		2654	// a temporary light into the noise source
		2655	// could use the map instead, but that's less reliable for our
		2656	// goal, which is to make invisibility a bit harder to exploit
		2657
		2658	// currently only works sensibly for players
		2659	if (!is_player ())
		2660	return;
		2661
		2662	// find old force, or create new one
		2663	object *force = force_find (shstr_noise_force);
		2664
		2665	if (force)
		2666	force->speed_left = -1.f; // patch old speed up
		2667	else
		2668	{
		2669	force = archetype::get (shstr_noise_force);
		2670
		2671	force->slaying = shstr_noise_force;
		2672	force->stats.food = 1;
		2673	force->speed_left = -1.f;
		2674
		2675	force->set_speed (1.f / 4.f);
		2676	force->flag [FLAG_IS_USED_UP] = true;
		2677	force->flag [FLAG_APPLIED] = true;
		2678
		2679	insert (force);
		2680	}
		2681	}
		2682

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