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Comparing deliantra/server/common/object.C (file contents):
Revision 1.64 by root, Tue Dec 12 21:39:56 2006 UTC vs.
Revision 1.333 by root, Thu Apr 22 03:53:40 2010 UTC

1	/*	1	/*
2	CrossFire, A Multiplayer game for X-windows	2	* This file is part of Deliantra, the Roguelike Realtime MMORPG.
3		3	*
		4	* Copyright (©) 2005,2006,2007,2008,2009,2010 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
4	Copyright (C) 2001 Mark Wedel & Crossfire Development Team	5	* Copyright (©) 2001 Mark Wedel & Crossfire Development Team
5	Copyright (C) 1992 Frank Tore Johansen	6	* Copyright (©) 1992 Frank Tore Johansen
6		7	*
7	This program is free software; you can redistribute it and/or modify	8	* Deliantra is free software: you can redistribute it and/or modify it under
8	it under the terms of the GNU General Public License as published by	9	* the terms of the Affero GNU General Public License as published by the
9	the Free Software Foundation; either version 2 of the License, or	10	* Free Software Foundation, either version 3 of the License, or (at your
10	(at your option) any later version.	11	* option) any later version.
11		12	*
12	This program is distributed in the hope that it will be useful,	13	* This program is distributed in the hope that it will be useful,
13	but WITHOUT ANY WARRANTY; without even the implied warranty of	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15	GNU General Public License for more details.	16	* GNU General Public License for more details.
16		17	*
17	You should have received a copy of the GNU General Public License	18	* You should have received a copy of the Affero GNU General Public License
18	along with this program; if not, write to the Free Software	19	* and the GNU General Public License along with this program. If not, see
19	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.	20	* <http://www.gnu.org/licenses/>.
20		21	*
21	The authors can be reached via e-mail at <crossfire@schmorp.de>	22	* The authors can be reached via e-mail to <support@deliantra.net>
22	*/	23	*/
23		24
24	/* Eneq(@csd.uu.se): Added weight-modifiers in environment of objects.
25	sub/add_weight will transcend the environment updating the carrying
26	variable. */
27	#include <global.h>	25	#include <global.h>
28	#include <stdio.h>	26	#include <stdio.h>
29	#include <sys/types.h>	27	#include <sys/types.h>
30	#include <sys/uio.h>	28	#include <sys/uio.h>
31	#include <object.h>	29	#include <object.h>
32	#include <funcpoint.h>	30	#include <sproto.h>
33	#include <loader.h>
34		31
35	int nrofallocobjects = 0;	32	#include <bitset>
36	static UUID uuid;	33
		34	UUID UUID::cur;
		35	static uint64_t seq_next_save;
37	const uint64 UUID_SKIP = 1<<19;	36	static const uint64 UUID_GAP = 1<<19;
		37	uint32_t mapspace::smellcount = 10000;
38		38
39	object *active_objects; /* List of active objects that need to be processed */	39	objectvec objects;
		40	activevec actives;
40		41
41	short freearr_x[SIZEOFFREE] = { 0, 0, 1, 1, 1, 0, -1, -1, -1, 0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2, -2, -2, -2, -1,	42	freelist_item *object::freelist;
		43	uint32_t object::object_count;
		44	uint32_t object::free_count;
		45	uint32_t object::create_count;
		46	uint32_t object::destroy_count;
		47
		48	//+GPL
		49
		50	short freearr_x[SIZEOFFREE] = {
		51	0,
		52	0, 1, 1, 1, 0, -1, -1, -1,
		53	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	54	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	};	55	};
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,	56	short freearr_y[SIZEOFFREE] = {
		57	0,
		58	-1, -1, 0, 1, 1, 1, 0, -1,
		59	-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	60	-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	};	61	};
50	int freedir[SIZEOFFREE] = {	62	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,	63	0,
		64	1, 2, 3, 4, 5, 6, 7, 8,
		65	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	66	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	};	67	};
54		68
		69	static int maxfree[SIZEOFFREE] = {
		70	0,
		71	9, 10, 13, 14, 17, 18, 21, 22,
		72	25, 26, 27, 30, 31, 32, 33, 36, 37, 39, 39, 42, 43, 44, 45, 48,
		73	49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49
		74	};
		75
55	static void	76	static void
56	write_uuid (void)	77	write_uuid (uval64 skip, bool sync)
57	{	78	{
58	char filename1[MAX_BUF], filename2[MAX_BUF];	79	CALL_BEGIN (2);
59		80	CALL_ARG_SV (newSVval64 (skip));
60	sprintf (filename1, "%s/uuid", settings.localdir);	81	CALL_ARG_SV (boolSV (sync));
61	sprintf (filename2, "%s/uuid~", settings.localdir);	82	CALL_CALL ("cf::write_uuid", G_DISCARD);
62		83	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	}	84	}
75		85
76	static void	86	static void
77	read_uuid (void)	87	read_uuid ()
78	{	88	{
79	char filename[MAX_BUF];	89	char filename[MAX_BUF];
80		90
81	sprintf (filename, "%s/uuid", settings.localdir);	91	sprintf (filename, "%s/uuid", settings.localdir);
		92
		93	seq_next_save = 0;
82		94
83	FILE *fp;	95	FILE *fp;
84		96
85	if (!(fp = fopen (filename, "r")))	97	if (!(fp = fopen (filename, "r")))
86	{	98	{
87	if (errno == ENOENT)	99	if (errno == ENOENT)
88	{	100	{
89	LOG (llevInfo, "RESET uid to 1\n");	101	LOG (llevInfo, "RESET uid to 1\n");
90	uuid.seq = 0;	102	UUID::cur.seq = 0;
91	write_uuid ();	103	write_uuid (UUID_GAP, true);
92	return;	104	return;
93	}	105	}
94		106
95	LOG (llevError, "FATAL: cannot open %s for reading!\n", filename);	107	LOG (llevError, "FATAL: cannot open %s for reading!\n", filename);
96	_exit (1);	108	_exit (1);
97	}	109	}
98		110
99	int version;	111	char buf [UUID::MAX_LEN];
100	unsigned long long uid;	112	buf[0] = 0;
101	if (2 != fscanf (fp, "<%d,%llx>\n", &version, &uid) || version != 1)	113	fgets (buf, sizeof (buf), fp);
		114
		115	if (!UUID::cur.parse (buf))
102	{	116	{
103	LOG (llevError, "FATAL: error reading uid from %s!\n", filename);	117	LOG (llevError, "FATAL: error reading uid from %s (%s)!\n", filename, buf);
104	_exit (1);	118	_exit (1);
105	}	119	}
106		120
107	uuid.seq = uid;	121	LOG (llevDebug, "read UUID: %s\n", UUID::cur.c_str ());
108	write_uuid ();	122
109	LOG (llevDebug, "read UID: %" PRId64 "\n", uid);	123	write_uuid (UUID_GAP, true);
110	fclose (fp);	124	fclose (fp);
111	}	125	}
112		126
113	UUID	127	UUID
114	gen_uuid ()	128	UUID::gen ()
115	{	129	{
116	UUID uid;	130	UUID uid;
117		131
118	uid.seq = ++uuid.seq;	132	uid.seq = ++cur.seq;
119		133
120	if (!(uuid.seq & (UUID_SKIP - 1)))	134	if (expect_false (cur.seq >= seq_next_save))
121	write_uuid ();	135	{
		136	seq_next_save = UUID::cur.seq + (UUID_GAP >> 1);
		137	write_uuid (UUID_GAP, false);
		138	}
		139
122		140
123	return uid;	141	return uid;
124	}	142	}
125		143
126	void	144	void
127	init_uuid ()	145	UUID::init ()
128	{	146	{
129	read_uuid ();	147	read_uuid ();
130	}	148	}
131		149
		150	bool
		151	UUID::parse (const char *s)
		152	{
		153	if (*s++ != '<' || *s++ != '1' || *s++ != '.')
		154	return false;
		155
		156	seq = 0;
		157
		158	while (*s != '>')
		159	{
		160	if (*s < '0')
		161	return false;
		162
		163	// this gives nice branchless code with gcc
		164	assert ('0' < 'a' && '0' == 48 && 'a' == 97);
		165	int digit = (*s + (*s & 0x40 ? 9 : 0)) & 15;
		166
		167	seq = (seq << 4) | digit;
		168
		169	++s;
		170	}
		171
		172	return true;
		173	}
		174
		175	char *
		176	UUID::append (char *buf) const
		177	{
		178	*buf++ = '<';
		179	*buf++ = '1';
		180	*buf++ = '.';
		181
		182	uint64_t seq = this->seq;
		183	const int bits = 64;
		184	char nz = 0;
		185	static const char tohex [] = "0123456789abcdef";
		186
		187	// assert (len >= 3 + bits / 4 + 1 + 1);
		188	for (int i = bits / 4; --i; )
		189	{
		190	uint8_t digit = seq >> (bits - 4);
		191
		192	*buf = tohex [digit];
		193	nz |= digit;
		194	buf += nz ? 1 : 0;
		195	seq <<= 4;
		196	}
		197
		198	// last digit is special - always emit
		199	uint8_t digit = seq >> (bits - 4);
		200	*buf++ = tohex [digit];
		201
		202	*buf++ = '>';
		203
		204	return buf;
		205	}
		206
		207	char *
		208	UUID::c_str () const
		209	{
		210	static char buf [MAX_LEN];
		211	*append (buf) = 0;
		212	return buf;
		213	}
		214
132	/* Returns TRUE if every key_values in wants has a partner with the same value in has. */	215	/* Returns TRUE if every key_values in wants has a partner with the same value in has. */
133	static int	216	static bool
134	compare_ob_value_lists_one (const object *wants, const object *has)	217	compare_ob_value_lists_one (const object *wants, const object *has)
135	{	218	{
136	key_value *wants_field;
137
138	/* n-squared behaviour (see get_ob_key_link()), but I'm hoping both	219	/* 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	220	* objects with lists are rare, and lists stay short. If not, use a
140	* different structure or at least keep the lists sorted...	221	* different structure or at least keep the lists sorted...
141	*/	222	*/
142		223
143	/* For each field in wants, */	224	/* For each field in wants, */
144	for (wants_field = wants->key_values; wants_field != NULL; wants_field = wants_field->next)	225	for (key_value *kv = wants->key_values; kv; kv = kv->next)
145	{	226	if (has->kv_get (kv->key) != kv->value)
146	key_value *has_field;	227	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		228
167	/* If we get here, every field in wants has a matching field in has. */	229	/* If we get here, every field in wants has a matching field in has. */
168	return TRUE;	230	return true;
169	}	231	}
170		232
171	/* Returns TRUE if ob1 has the same key_values as ob2. */	233	/* Returns TRUE if ob1 has the same key_values as ob2. */
172	static int	234	static bool
173	compare_ob_value_lists (const object *ob1, const object *ob2)	235	compare_ob_value_lists (const object *ob1, const object *ob2)
174	{	236	{
175	/* However, there may be fields in has which aren't partnered in wants,	237	/* However, there may be fields in has which aren't partnered in wants,
176	* so we need to run the comparison *twice*. :(	238	* so we need to run the comparison *twice*. :(
177	*/	239	*/
178	return compare_ob_value_lists_one (ob1, ob2) && compare_ob_value_lists_one (ob2, ob1);	240	return compare_ob_value_lists_one (ob1, ob2)
		241	&& compare_ob_value_lists_one (ob2, ob1);
179	}	242	}
180		243
181	/* Function examines the 2 objects given to it, and returns true if	244	/* Function examines the 2 objects given to it, and returns true if
182	* they can be merged together.	245	* they can be merged together.
183	*	246	*
184	* Note that this function appears a lot longer than the macro it	247	* Note that this function appears a lot longer than the macro it
185	* replaces - this is mostly for clarity - a decent compiler should hopefully	248	* replaces - this is mostly for clarity - a decent compiler should hopefully
186	* reduce this to the same efficiency.	249	* reduce this to the same efficiency.
187	*	250	*
188	* Check nrof variable *before* calling CAN_MERGE()	251	* Check nrof variable *before* calling can_merge()
189	*	252	*
190	* Improvements made with merge: Better checking on potion, and also	253	* Improvements made with merge: Better checking on potion, and also
191	* check weight	254	* check weight
192	*/	255	*/
193
194	bool object::can_merge (object *ob1, object *ob2)	256	bool object::can_merge_slow (object *ob1, object *ob2)
195	{	257	{
196	/* A couple quicksanity checks */	258	/* A couple quick sanity checks */
197	if ((ob1 == ob2) || (ob1->type != ob2->type))	259	if (ob1 == ob2
		260	|| ob1->type != ob2->type
		261	|| ob1->value != ob2->value
		262	|| ob1->name != ob2->name
		263	|| fabs (ob1->speed - ob2->speed) >= MIN_ACTIVE_SPEED)
198	return 0;	264	return 0;
199		265
200	if (ob1->speed != ob2->speed)	266	/* Do not merge objects if nrof would overflow, assume nrof
		267	* is always 0 .. 2**31-1 */
		268	if (ob1->nrof > 0x7fffffff - ob2->nrof)
201	return 0;	269	return 0;
202		270
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.	271	/* 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	272	* 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	273	* 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	274	* are not equal - just if it has been identified, the been_applied
214	* flags lose any meaning.	275	* flags lose any meaning.
215	*/	276	*/
216	if (QUERY_FLAG (ob1, FLAG_IDENTIFIED))	277	if (ob1->flag [FLAG_IDENTIFIED])
217	SET_FLAG (ob1, FLAG_BEEN_APPLIED);	278	ob1->set_flag (FLAG_BEEN_APPLIED);
218		279
219	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))	280	if (ob2->flag [FLAG_IDENTIFIED])
220	SET_FLAG (ob2, FLAG_BEEN_APPLIED);	281	ob2->set_flag (FLAG_BEEN_APPLIED);
221		282
222		283	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) ||	284	|| ob1->name != ob2->name
233	(ob1->title != ob2->title) ||	285	|| ob1->title != ob2->title
234	(ob1->msg != ob2->msg) ||	286	|| ob1->msg != ob2->msg
235	(ob1->weight != ob2->weight) ||	287	|| 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) ||	288	|| ob1->attacktype != ob2->attacktype
239	(ob1->magic != ob2->magic) ||	289	|| ob1->magic != ob2->magic
240	(ob1->slaying != ob2->slaying) ||	290	|| ob1->slaying != ob2->slaying
241	(ob1->skill != ob2->skill) ||	291	|| ob1->skill != ob2->skill
242	(ob1->value != ob2->value) ||	292	|| ob1->value != ob2->value
243	(ob1->animation_id != ob2->animation_id) ||	293	|| ob1->animation_id != ob2->animation_id
		294	|| (ob1->face != ob2->face && !ob1->animation_id) // face and animation are dependend on each other
244	(ob1->client_type != ob2->client_type) ||	295	|| ob1->client_type != ob2->client_type
245	(ob1->materialname != ob2->materialname) ||	296	|| ob1->material != ob2->material
246	(ob1->lore != ob2->lore) ||	297	|| ob1->lore != ob2->lore
247	(ob1->subtype != ob2->subtype) ||	298	|| ob1->subtype != ob2->subtype
248	(ob1->move_type != ob2->move_type) ||	299	|| ob1->move_type != ob2->move_type
249	(ob1->move_block != ob2->move_block) ||	300	|| ob1->move_block != ob2->move_block
250	(ob1->move_allow != ob2->move_allow) ||	301	|| ob1->move_allow != ob2->move_allow
251	(ob1->move_on != ob2->move_on) ||	302	|| 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))	303	|| ob1->move_off != ob2->move_off
		304	|| ob1->move_slow != ob2->move_slow
		305	|| fabs (ob1->move_slow_penalty - ob2->move_slow_penalty) >= (1.f / 1024.f)
		306	|| memcmp (&ob1->resist, &ob2->resist, sizeof (ob1->resist))
		307	|| memcmp (&ob1->stats , &ob2->stats , sizeof (ob1->stats)))
253	return 0;	308	return 0;
254		309
		310	if ((ob1->flag ^ ob2->flag)
		311	.reset (FLAG_INV_LOCKED)
		312	.reset (FLAG_REMOVED)
		313	.any ())
		314	return 0;
		315
255	/* This is really a spellbook check - really, we should	316	/* This is really a spellbook check - we should in general
256	* check all objects in the inventory.	317	* not merge objects with real inventories, as splitting them
		318	* is hard.
257	*/	319	*/
258	if (ob1->inv || ob2->inv)	320	if (ob1->inv || ob2->inv)
259	{	321	{
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))	322	if (!(ob1->inv && ob2->inv))
266	return 0;	323	return 0; /* inventories differ in length */
		324
		325	if (ob1->inv->below || ob2->inv->below)
		326	return 0; /* more than one object in inv */
		327
		328	if (!object::can_merge (ob1->inv, ob2->inv))
		329	return 0; /* inventory objects differ */
267		330
268	/* inventory ok - still need to check rest of this object to see	331	/* inventory ok - still need to check rest of this object to see
269	* if it is valid.	332	* if it is valid.
270	*/	333	*/
271	}	334	}
272		335
273	/* Don't merge objects that are applied. With the new 'body' code,	336	/* Don't merge objects that are applied. With the new 'body' code,
274	* it is possible for most any character to have more than one of	337	* it is possible for most any character to have more than one of
275	* some items equipped, and we don't want those to merge.	338	* some items equipped, and we don't want those to merge.
276	*/	339	*/
277	if (QUERY_FLAG (ob1, FLAG_APPLIED) || QUERY_FLAG (ob2, FLAG_APPLIED))	340	if (ob1->flag [FLAG_APPLIED] || ob2->flag [FLAG_APPLIED])
278	return 0;	341	return 0;
279		342
280	/* Note sure why the following is the case - either the object has to	343	/* 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	344	* be animated or have a very low speed. Is this an attempted monster
282	* check?	345	* check?
283	*/	346	*/
284	if (!QUERY_FLAG (ob1, FLAG_ANIMATE) && FABS ((ob1)->speed) > MIN_ACTIVE_SPEED)	347	if (!ob1->flag [FLAG_ANIMATE] && ob1->has_active_speed ())
285	return 0;	348	return 0;
286		349
287	switch (ob1->type)	350	switch (ob1->type)
288	{	351	{
289	case SCROLL:	352	case SCROLL:
290	if (ob1->level != ob2->level)	353	if (ob1->level != ob2->level)
291	return 0;	354	return 0;
292	break;	355	break;
293	}	356	}
294		357
295	if (ob1->key_values != NULL || ob2->key_values != NULL)	358	if (ob1->key_values || ob2->key_values)
296	{	359	{
297	/* At least one of these has key_values. */	360	/* At least one of these has key_values. */
298	if ((ob1->key_values == NULL) != (ob2->key_values == NULL))	361	if ((!ob1->key_values) != (!ob2->key_values))
299	/* One has fields, but the other one doesn't. */	362	return 0; /* One has fields, but the other one doesn't. */
		363
		364	if (!compare_ob_value_lists (ob1, ob2))
300	return 0;	365	return 0;
301	else if (!compare_ob_value_lists (ob1, ob2))
302	return 0;
303	}	366	}
304		367
305	//TODO: generate an event or call into perl for additional checks
306	if (ob1->self || ob2->self)	368	if (ob1->self || ob2->self)
307	{	369	{
308	ob1->optimise ();	370	ob1->optimise ();
309	ob2->optimise ();	371	ob2->optimise ();
310		372
311	if (ob1->self || ob2->self)	373	if (ob1->self || ob2->self)
		374	{
		375	int k1 = ob1->self ? HvTOTALKEYS (ob1->self) : 0;
		376	int k2 = ob2->self ? HvTOTALKEYS (ob2->self) : 0;
		377
		378	if (k1 != k2)
312	return 0;	379	return 0;
		380
		381	if (k1 == 0)
		382	return 1;
		383
		384	if (!cfperl_can_merge (ob1, ob2))
		385	return 0;
		386	}
313	}	387	}
314		388
315	/* Everything passes, must be OK. */	389	/* Everything passes, must be OK. */
316	return 1;	390	return 1;
317	}	391	}
318		392
		393	// find player who can see this object
		394	object *
		395	object::visible_to () const
		396	{
		397	if (client_visible () && !flag [FLAG_REMOVED])
		398	{
		399	// see if we are in a container of sorts
		400	if (env)
		401	{
		402	// the player inventory itself is always visible
		403	if (env->is_player ())
		404	return env;
		405
		406	// else a player could have our env open
		407	object *envest = env->outer_env_or_self ();
		408
		409	// the player itself is always on a map, so we will find him here
		410	// even if our inv is in a player.
		411	if (envest->is_on_map ())
		412	if (object *pl = envest->ms ().player ())
		413	if (pl->container_ () == env)
		414	return pl;
		415	}
		416	else
		417	{
		418	// maybe there is a player standing on the same mapspace
		419	// this will catch the case where "this" is a player
		420	if (object *pl = ms ().player ())
		421	if ((pl->contr->ns && !pl->container_ () && !pl->contr->ns->update_look)
		422	|| pl->container_ () == this)
		423	return pl;
		424	}
		425	}
		426
		427	return 0;
		428	}
		429
		430	// adjust weight per container type ("of holding")
		431	static sint32
		432	weight_adjust_for (object *op, sint32 weight)
		433	{
		434	return op->type == CONTAINER
		435	? lerp (weight, 0, 100, 0, 100 - op->stats.Str)
		436	: weight;
		437	}
		438
319	/*	439	/*
		440	* adjust_weight(object, weight) adds the specified weight to an object,
		441	* and also updates how much the environment(s) is/are carrying.
		442	*/
		443	static void
		444	adjust_weight (object *op, sint32 weight)
		445	{
		446	while (op)
		447	{
		448	// adjust by actual difference to account for rounding errors
		449	// i.e. (w2 - w1) / f != w2 / f - w1 / f and the latter is correct
		450	weight = weight_adjust_for (op, op->carrying + weight)
		451	- weight_adjust_for (op, op->carrying);
		452
		453	if (!weight)
		454	return;
		455
		456	op->carrying += weight;
		457
		458	if (object *pl = op->visible_to ())
		459	if (pl != op) // player is handled lazily
		460	esrv_update_item (UPD_WEIGHT, pl, op);
		461
		462	op = op->env;
		463	}
		464	}
		465
		466	/*
320	* sum_weight() is a recursive function which calculates the weight	467	* this is a recursive function which calculates the weight
321	* an object is carrying. It goes through in figures out how much	468	* an object is carrying. It goes through op and figures out how much
322	* containers are carrying, and sums it up.	469	* containers are carrying, and sums it up.
323	*/	470	*/
324	long	471	void
325	sum_weight (object *op)	472	object::update_weight ()
326	{	473	{
327	long sum;	474	sint32 sum = 0;
328	object *inv;
329		475
330	for (sum = 0, inv = op->inv; inv != NULL; inv = inv->below)	476	for (object *op = inv; op; op = op->below)
331	{	477	{
332	if (inv->inv)	478	if (op->inv)
333	sum_weight (inv);	479	op->update_weight ();
334	sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1);	480
		481	sum += op->total_weight ();
		482	}
		483
		484	sum = weight_adjust_for (this, sum);
		485
		486	if (sum != carrying)
335	}	487	{
336
337	if (op->type == CONTAINER && op->stats.Str)
338	sum = (sum * (100 - op->stats.Str)) / 100;
339
340	if (op->carrying != sum)	488	if (carrying != sum)//D
		489	LOG (llevDebug, "updating carrying got %ld, expected %ld (%s)\n",
		490	(long long)sum, (long long)carrying, debug_desc ());
		491
341	op->carrying = sum;	492	carrying = sum;
342		493
343	return sum;	494	if (object *pl = visible_to ())
		495	if (pl != this) // player is handled lazily
		496	esrv_update_item (UPD_WEIGHT, pl, this);
		497	}
344	}	498	}
345		499
346	/**	500	/*
347	* Return the outermost environment object for a given object.	501	* Used by: Server DM commands: dumpbelow, dump. Some error messages.
348	*/	502	*/
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 *	503	char *
380	dump_object (object *op)	504	dump_object (object *op)
381	{	505	{
382	if (!op)	506	if (!op)
383	return strdup ("[NULLOBJ]");	507	return strdup ("[NULLOBJ]");
384		508
385	object_freezer freezer;	509	object_freezer freezer;
386	save_object (freezer, op, 3);	510	op->write (freezer);
387	return freezer.as_string ();	511	return freezer.as_string ();
388	}	512	}
389		513
390	/*	514	char *
391	* get_nearest_part(multi-object, object 2) returns the part of the	515	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	{	516	{
399	object *tmp, *closest;	517	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	}	518	}
409		519
410	/*	520	/*
411	* Returns the object which has the count-variable equal to the argument.	521	* Returns the object which has the count-variable equal to the argument.
		522	* VERRRY slow.
412	*/	523	*/
413
414	object *	524	object *
415	find_object (tag_t i)	525	find_object (tag_t i)
416	{	526	{
417	for (object *op = object::first; op; op = op->next)	527	for_all_objects (op)
418	if (op->count == i)	528	if (op->count == i)
419	return op;	529	return op;
		530
		531	return 0;
		532	}
		533
		534	/*
		535	* Returns the object which has the uuid equal to the argument.
		536	* MOAR VERRRY slow.
		537	*/
		538
		539	object *
		540	find_object_uuid (UUID i)
		541	{
		542	for_all_objects (op)
		543	if (op->uuid == i)
		544	return op;
420		545
421	return 0;	546	return 0;
422	}	547	}
423		548
424	/*	549	/*
425	* Returns the first object which has a name equal to the argument.	550	* Returns the first object which has a name equal to the argument.
426	* Used only by the patch command, but not all that useful.	551	* Used only by the patch command, but not all that useful.
427	* Enables features like "patch <name-of-other-player> food 999"	552	* Enables features like "patch <name-of-other-player> food 999"
428	*/	553	*/
429
430	object *	554	object *
431	find_object_name (const char *str)	555	find_object_name (const char *str)
432	{	556	{
433	shstr_cmp str_ (str);	557	shstr_cmp str_ (str);
434	object *op;
435		558
436	for (op = object::first; op != NULL; op = op->next)	559	if (str_)
		560	for_all_objects (op)
437	if (op->name == str_)	561	if (op->name == str_)
438	break;	562	return op;
439		563
440	return op;	564	return 0;
441	}
442
443	void
444	free_all_object_data ()
445	{
446	LOG (llevDebug, "%d allocated objects\n", nrofallocobjects);
447	}	565	}
448		566
449	/*	567	/*
450	* Sets the owner and sets the skill and exp pointers to owner's current	568	* Sets the owner and sets the skill and exp pointers to owner's current
451	* skill and experience objects.	569	* skill and experience objects.
		570	* ACTUALLY NO! investigate! TODO
452	*/	571	*/
453	void	572	void
454	object::set_owner (object *owner)	573	object::set_owner (object *owner)
455	{	574	{
		575	// allow objects which own objects
456	if (!owner)	576	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)	577	while (owner->owner)
467	owner = owner->owner;	578	owner = owner->owner;
		579
		580	if (flag [FLAG_FREED])
		581	{
		582	LOG (llevError | logBacktrace, "tried to set owner of %s to %s\n", debug_desc (), owner->debug_desc ());
		583	return;
		584	}
468		585
469	this->owner = owner;	586	this->owner = owner;
470	}	587	}
471		588
472	/* Zero the key_values on op, decrementing the shared-string	589	/* Zero the key_values on op, decrementing the shared-string
473	* refcounts and freeing the links.	590	* refcounts and freeing the links.
474	*/	591	*/
475	static void	592	static void
476	free_key_values (object *op)	593	free_key_values (object *op)
477	{	594	{
478	for (key_value *i = op->key_values; i != 0;)	595	for (key_value *i = op->key_values; i; )
479	{	596	{
480	key_value *next = i->next;	597	key_value *next = i->next;
481	delete i;	598	delete i;
482		599
483	i = next;	600	i = next;
484	}	601	}
485		602
486	op->key_values = 0;	603	op->key_values = 0;
487	}
488
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	}	604	}
530		605
531	/*	606	/*
532	* copy_to first frees everything allocated by the dst object,	607	* copy_to first frees everything allocated by the dst object,
533	* and then copies the contents of itself into the second	608	* and then copies the contents of itself into the second
…		…
537	* will point at garbage.	612	* will point at garbage.
538	*/	613	*/
539	void	614	void
540	object::copy_to (object *dst)	615	object::copy_to (object *dst)
541	{	616	{
542	bool is_freed = QUERY_FLAG (dst, FLAG_FREED);	617	dst->remove ();
543	bool is_removed = QUERY_FLAG (dst, FLAG_REMOVED);
544
545	*(object_copy *)dst = *this;	618	*(object_copy *)dst = *this;
546	*(object_pod *)dst = *this;	619	dst->flag [FLAG_REMOVED] = true;
547
548	if (self || cb)
549	INVOKE_OBJECT (CLONE, this, ARG_OBJECT (dst));
550
551	if (is_freed)
552	SET_FLAG (dst, FLAG_FREED);
553
554	if (is_removed)
555	SET_FLAG (dst, FLAG_REMOVED);
556
557	if (speed < 0)
558	dst->speed_left = speed_left - RANDOM () % 200 / 100.0;
559		620
560	/* Copy over key_values, if any. */	621	/* Copy over key_values, if any. */
561	if (key_values)	622	if (key_values)
562	{	623	{
563	key_value *tail = 0;	624	key_value *tail = 0;
564	key_value *i;
565
566	dst->key_values = 0;	625	dst->key_values = 0;
567		626
568	for (i = key_values; i; i = i->next)	627	for (key_value *i = key_values; i; i = i->next)
569	{	628	{
570	key_value *new_link = new key_value;	629	key_value *new_link = new key_value;
571		630
572	new_link->next = 0;	631	new_link->next = 0;
573	new_link->key = i->key;	632	new_link->key = i->key;
574	new_link->value = i->value;	633	new_link->value = i->value;
575		634
576	/* Try and be clever here, too. */	635	/* Try and be clever here, too. */
577	if (!dst->key_values)	636	if (!dst->key_values)
578	{	637	{
…		…
585	tail = new_link;	644	tail = new_link;
586	}	645	}
587	}	646	}
588	}	647	}
589		648
590	update_ob_speed (dst);	649	dst->activate ();
		650	}
		651
		652	void
		653	object::instantiate ()
		654	{
		655	if (!uuid.seq) // HACK
		656	uuid = UUID::gen ();
		657
		658	// TODO: unclean state changes, should nt be done in copy_to AND instantiate
		659	if (flag [FLAG_RANDOM_SPEED] && speed)
		660	speed_left = - speed - rndm (); // TODO animation
		661	else
		662	speed_left = -1.;
		663
		664	/* copy the body_info to the body_used - this is only really
		665	* need for monsters, but doesn't hurt to do it for everything.
		666	* by doing so, when a monster is created, it has good starting
		667	* values for the body_used info, so when items are created
		668	* for it, they can be properly equipped.
		669	*/
		670	for (int i = NUM_BODY_LOCATIONS; i--; )
		671	slot[i].used = slot[i].info;
		672
		673	attachable::instantiate ();
		674	}
		675
		676	object *
		677	object::clone ()
		678	{
		679	object *neu = create ();
		680	copy_to (neu);
		681
		682	// TODO: unclean state changes, should not be done in clone AND instantiate
		683	if (neu->flag [FLAG_RANDOM_SPEED] && neu->speed)
		684	neu->speed_left = - neu->speed - rndm (); // TODO animation
		685
		686	neu->map = map; // not copied by copy_to
		687	return neu;
591	}	688	}
592		689
593	/*	690	/*
594	* If an object with the IS_TURNABLE() flag needs to be turned due	691	* If an object with the IS_TURNABLE() flag needs to be turned due
595	* to the closest player being on the other side, this function can	692	* to the closest player being on the other side, this function can
596	* be called to update the face variable, _and_ how it looks on the map.	693	* be called to update the face variable, _and_ how it looks on the map.
597	*/	694	*/
598
599	void	695	void
600	update_turn_face (object *op)	696	update_turn_face (object *op)
601	{	697	{
602	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || op->arch == NULL)	698	if (!op->flag [FLAG_IS_TURNABLE] || !op->arch)
603	return;	699	return;
		700
604	SET_ANIMATION (op, op->direction);	701	SET_ANIMATION (op, op->direction);
605	update_object (op, UP_OBJ_FACE);	702	update_object (op, UP_OBJ_FACE);
606	}	703	}
607		704
608	/*	705	/*
609	* Updates the speed of an object. If the speed changes from 0 to another	706	* Updates the speed of an object. If the speed changes from 0 to another
610	* value, or vice versa, then add/remove the object from the active list.	707	* value, or vice versa, then add/remove the object from the active list.
611	* This function needs to be called whenever the speed of an object changes.	708	* This function needs to be called whenever the speed of an object changes.
612	*/	709	*/
613	void	710	void
614	update_ob_speed (object *op)	711	object::set_speed (float speed)
615	{	712	{
616	extern int arch_init;	713	this->speed = speed;
617		714
618	/* No reason putting the archetypes objects on the speed list,	715	if (has_active_speed ())
619	* since they never really need to be updated.	716	activate ();
620	*/
621
622	if (QUERY_FLAG (op, FLAG_FREED) && op->speed)
623	{
624	LOG (llevError, "Object %s is freed but has speed.\n", &op->name);
625	#ifdef MANY_CORES
626	abort ();
627	#else
628	op->speed = 0;
629	#endif
630	}
631
632	if (arch_init)
633	return;
634
635	if (FABS (op->speed) > MIN_ACTIVE_SPEED)
636	{
637	/* If already on active list, don't do anything */
638	if (op->active_next || op->active_prev || op == active_objects)
639	return;
640
641	/* process_events() expects us to insert the object at the beginning
642	* of the list. */
643	op->active_next = active_objects;
644
645	if (op->active_next != NULL)
646	op->active_next->active_prev = op;
647
648	active_objects = op;
649	}
650	else	717	else
651	{	718	deactivate ();
652	/* If not on the active list, nothing needs to be done */
653	if (!op->active_next && !op->active_prev && op != active_objects)
654	return;
655
656	if (op->active_prev == NULL)
657	{
658	active_objects = op->active_next;
659
660	if (op->active_next != NULL)
661	op->active_next->active_prev = NULL;
662	}
663	else
664	{
665	op->active_prev->active_next = op->active_next;
666
667	if (op->active_next)
668	op->active_next->active_prev = op->active_prev;
669	}
670
671	op->active_next = NULL;
672	op->active_prev = NULL;
673	}
674	}	719	}
675		720
676	/* This function removes object 'op' from the list of active
677	* objects.
678	* This should only be used for style maps or other such
679	* reference maps where you don't want an object that isn't
680	* in play chewing up cpu time getting processed.
681	* The reverse of this is to call update_ob_speed, which
682	* will do the right thing based on the speed of the object.
683	*/
684	void
685	remove_from_active_list (object *op)
686	{
687	/* If not on the active list, nothing needs to be done */
688	if (!op->active_next && !op->active_prev && op != active_objects)
689	return;
690
691	if (op->active_prev == NULL)
692	{
693	active_objects = op->active_next;
694	if (op->active_next != NULL)
695	op->active_next->active_prev = NULL;
696	}
697	else
698	{
699	op->active_prev->active_next = op->active_next;
700	if (op->active_next)
701	op->active_next->active_prev = op->active_prev;
702	}
703	op->active_next = NULL;
704	op->active_prev = NULL;
705	}
706
707	/*	721	/*
708	* update_object() updates the array which represents the map.	722	* update_object() updates the the map.
709	* It takes into account invisible objects (and represent squares covered	723	* It takes into account invisible objects (and represent squares covered
710	* by invisible objects by whatever is below them (unless it's another	724	* by invisible objects by whatever is below them (unless it's another
711	* invisible object, etc...)	725	* invisible object, etc...)
712	* If the object being updated is beneath a player, the look-window	726	* If the object being updated is beneath a player, the look-window
713	* of that player is updated (this might be a suboptimal way of	727	* of that player is updated (this might be a suboptimal way of
714	* updating that window, though, since update_object() is called _often_)	728	* updating that window, though, since update_object() is called _often_)
715	*	729	*
716	* action is a hint of what the caller believes need to be done.	730	* action is a hint of what the caller believes need to be done.
717	* For example, if the only thing that has changed is the face (due to
718	* an animation), we don't need to call update_position until that actually
719	* comes into view of a player. OTOH, many other things, like addition/removal
720	* of walls or living creatures may need us to update the flags now.
721	* current action are:	731	* current action are:
722	* UP_OBJ_INSERT: op was inserted	732	* UP_OBJ_INSERT: op was inserted
723	* UP_OBJ_REMOVE: op was removed	733	* UP_OBJ_REMOVE: op was removed
724	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update	734	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update
725	* as that is easier than trying to look at what may have changed.	735	* as that is easier than trying to look at what may have changed.
726	* UP_OBJ_FACE: only the objects face has changed.	736	* UP_OBJ_FACE: only the objects face has changed.
727	*/	737	*/
728
729	void	738	void
730	update_object (object *op, int action)	739	update_object (object *op, int action)
731	{	740	{
732	int update_now = 0, flags;	741	if (!op)
733	MoveType move_on, move_off, move_block, move_slow;
734
735	if (op == NULL)
736	{	742	{
737	/* this should never happen */	743	/* this should never happen */
738	LOG (llevDebug, "update_object() called for NULL object.\n");	744	LOG (llevError | logBacktrace, "update_object() called for NULL object.\n");
739	return;	745	return;
740	}	746	}
741		747
742	if (op->env != NULL)	748	if (!op->is_on_map ())
743	{	749	{
744	/* Animation is currently handled by client, so nothing	750	/* Animation is currently handled by client, so nothing
745	* to do in this case.	751	* to do in this case.
746	*/	752	*/
747	return;	753	return;
748	}	754	}
749		755
750	/* If the map is saving, don't do anything as everything is
751	* going to get freed anyways.
752	*/
753	if (!op->map || op->map->in_memory == MAP_SAVING)
754	return;
755
756	/* make sure the object is within map boundaries */	756	/* make sure the object is within map boundaries */
757	if (op->x < 0 || op->x >= MAP_WIDTH (op->map) || op->y < 0 || op->y >= MAP_HEIGHT (op->map))	757	if (op->x < 0 || op->x >= op->map->width || op->y < 0 || op->y >= op->map->height)
758	{	758	{
759	LOG (llevError, "update_object() called for object out of map!\n");	759	LOG (llevError, "update_object() called for object out of map!\n");
760	#ifdef MANY_CORES	760	#ifdef MANY_CORES
761	abort ();	761	abort ();
762	#endif	762	#endif
763	return;	763	return;
764	}	764	}
765		765
766	flags = GET_MAP_FLAGS (op->map, op->x, op->y);	766	mapspace &m = op->ms ();
767	SET_MAP_FLAGS (op->map, op->x, op->y, flags | P_NEED_UPDATE);
768	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);
769	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);
770	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);
771	move_off = GET_MAP_MOVE_OFF (op->map, op->x, op->y);
772		767
		768	if (!(m.flags_ & P_UPTODATE))
		769	/* nop */;
773	if (action == UP_OBJ_INSERT)	770	else if (action == UP_OBJ_INSERT)
774	{	771	{
		772	#if 0
		773	// this is likely overkill, TODO: revisit (schmorp)
775	if (QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(flags & P_BLOCKSVIEW))	774	if ((op->flag [FLAG_BLOCKSVIEW] && !(m.flags_ & P_BLOCKSVIEW))
776	update_now = 1;	775	|| (op->flag [FLAG_NO_MAGIC] && !(m.flags_ & P_NO_MAGIC))
777		776	|| (op->is_player () && !(m.flags_ & P_PLAYER))
778	if (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(flags & P_NO_MAGIC))
779	update_now = 1;
780
781	if (QUERY_FLAG (op, FLAG_DAMNED) && !(flags & P_NO_CLERIC))
782	update_now = 1;
783
784	if (QUERY_FLAG (op, FLAG_ALIVE) && !(flags & P_IS_ALIVE))
785	update_now = 1;
786
787	if (op->type == SAFE_GROUND && !(flags & P_SAFE))	777	|| (op->type == SAFE_GROUND && !(m.flags_ & P_SAFE))
788	update_now = 1;	778	|| (op->flag [FLAG_ALIVE] && !(m.flags_ & P_IS_ALIVE))
789		779	|| (op->flag [FLAG_DAMNED] && !(m.flags_ & P_NO_CLERIC))
790	if ((move_on | op->move_on) != move_on)	780	|| (m.move_on | op->move_on ) != m.move_on
791	update_now = 1;
792
793	if ((move_off | op->move_off) != move_off)	781	|| (m.move_off | op->move_off ) != m.move_off
794	update_now = 1;	782	|| (m.move_slow | op->move_slow) != m.move_slow
795
796	/* This isn't perfect, but I don't expect a lot of objects to	783	/* This isn't perfect, but I don't expect a lot of objects to
797	* to have move_allow right now.	784	* have move_allow right now.
798	*/	785	*/
799	if (((move_block | op->move_block) & ~op->move_allow) != move_block)	786	|| ((m.move_block | op->move_block) & ~op->move_allow) != m.move_block
800	update_now = 1;	787	m.invalidate ();
801		788	#else
802	if ((move_slow | op->move_slow) != move_slow)	789	// the above is not strong enough a test to skip updating. los maybe? TODO (schmorp)
803	update_now = 1;	790	m.invalidate ();
		791	#endif
804	}	792	}
805
806	/* if the object is being removed, we can't make intelligent	793	/* if the object is being removed, we can't make intelligent
807	* decisions, because remove_ob can't really pass the object	794	* decisions, because remove_ob can't really pass the object
808	* that is being removed.	795	* that is being removed.
809	*/	796	*/
810	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)	797	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)
811	update_now = 1;	798	m.invalidate ();
812	else if (action == UP_OBJ_FACE)	799	else if (action == UP_OBJ_FACE)
813	/* Nothing to do for that case */ ;	800	/* Nothing to do for that case */ ;
814	else	801	else
815	LOG (llevError, "update_object called with invalid action: %d\n", action);	802	LOG (llevError, "update_object called with invalid action: %d\n", action);
816		803
817	if (update_now)
818	{
819	SET_MAP_FLAGS (op->map, op->x, op->y, flags | P_NO_ERROR | P_NEED_UPDATE);
820	update_position (op->map, op->x, op->y);
821	}
822
823	if (op->more != NULL)	804	if (op->more)
824	update_object (op->more, action);	805	update_object (op->more, action);
825	}	806	}
826		807
827	object::vector object::mortals;
828	object::vector object::objects; // not yet used
829	object *object::first;
830
831	void object::free_mortals ()
832	{
833	for (AUTODECL (i, mortals.begin ()); i != mortals.end ();)
834	if ((*i)->refcnt)
835	++i; // further delay freeing
836	else
837	{
838	delete *i;
839	mortals.erase (i);
840	}
841	}
842
843	object::object ()	808	object::object ()
844	{	809	{
845	SET_FLAG (this, FLAG_REMOVED);	810	this->set_flag (FLAG_REMOVED);
846		811
847	expmul = 1.0;	812	//expmul = 1.0; declared const for the time being
848	face = blank_face;	813	face = blank_face;
		814	material = MATERIAL_NULL;
849	}	815	}
850		816
851	object::~object ()	817	object::~object ()
852	{	818	{
		819	unlink ();
		820
853	free_key_values (this);	821	free_key_values (this);
854	}	822	}
855		823
856	void object::link ()	824	void object::link ()
857	{	825	{
858	count = ++ob_count;	826	assert (!index);//D
859	uuid = gen_uuid ();	827	uuid = UUID::gen ();
860		828
861	prev = 0;	829	refcnt_inc ();
862	next = object::first;	830	objects.insert (this);
863		831
864	if (object::first)	832	++create_count;
865	object::first->prev = this;
866		833
867	object::first = this;
868	}	834	}
869		835
870	void object::unlink ()	836	void object::unlink ()
871	{	837	{
872	if (this == object::first)	838	if (!index)
873	object::first = next;
874
875	/* Remove this object from the list of used objects */
876	if (prev) prev->next = next;
877	if (next) next->prev = prev;
878
879	prev = 0;
880	next = 0;
881	}
882
883	object *object::create ()
884	{
885	object *op = new object;
886	op->link ();
887	return op;
888	}
889
890	/*
891	* free_object() frees everything allocated by an object, removes
892	* it from the list of used objects, and puts it on the list of
893	* free objects. The IS_FREED() flag is set in the object.
894	* The object must have been removed by remove_ob() first for
895	* this function to succeed.
896	*
897	* If destroy_inventory is set, free inventory as well. Else drop items in
898	* inventory to the ground.
899	*/
900	void object::destroy (bool destroy_inventory)
901	{
902	if (QUERY_FLAG (this, FLAG_FREED))
903	return;	839	return;
904		840
905	if (QUERY_FLAG (this, FLAG_FRIENDLY))	841	++destroy_count;
906	remove_friendly_object (this);
907		842
908	if (!QUERY_FLAG (this, FLAG_REMOVED))	843	objects.erase (this);
909	remove ();	844	refcnt_dec ();
		845	}
910		846
911	SET_FLAG (this, FLAG_FREED);	847	void
		848	object::activate ()
		849	{
		850	/* If already on active list, don't do anything */
		851	if (active)
		852	return;
912		853
913	if (more)	854	if (has_active_speed ())
914	{
915	more->destroy (destroy_inventory);
916	more = 0;
917	}	855	{
		856	if (flag [FLAG_FREED])
		857	LOG (llevError | logBacktrace, "BUG: tried to activate freed object %s\n", debug_desc ());//D
918		858
		859	actives.insert (this);
		860	}
		861	}
		862
		863	void
		864	object::activate_recursive ()
		865	{
		866	activate ();
		867
		868	for (object *op = inv; op; op = op->below)
		869	op->activate_recursive ();
		870	}
		871
		872	/* This function removes object 'op' from the list of active
		873	* objects.
		874	* This should only be used for style maps or other such
		875	* reference maps where you don't want an object that isn't
		876	* in play chewing up cpu time getting processed.
		877	* The reverse of this is to call update_ob_speed, which
		878	* will do the right thing based on the speed of the object.
		879	*/
		880	void
		881	object::deactivate ()
		882	{
		883	/* If not on the active list, nothing needs to be done */
		884	if (!active)
		885	return;
		886
		887	actives.erase (this);
		888	}
		889
		890	void
		891	object::deactivate_recursive ()
		892	{
		893	for (object *op = inv; op; op = op->below)
		894	op->deactivate_recursive ();
		895
		896	deactivate ();
		897	}
		898
		899	void
		900	object::set_flag_inv (int flag, int value)
		901	{
		902	for (object *op = inv; op; op = op->below)
		903	{
		904	op->flag [flag] = value;
		905	op->set_flag_inv (flag, value);
		906	}
		907	}
		908
		909	/*
		910	* Remove and free all objects in the inventory of the given object.
		911	* object.c ?
		912	*/
		913	void
		914	object::destroy_inv (bool drop_to_ground)
		915	{
		916	// need to check first, because the checks below might segfault
		917	// as we might be on an invalid mapspace and crossfire code
		918	// is too buggy to ensure that the inventory is empty.
		919	// corollary: if you create arrows etc. with stuff in its inventory,
		920	// cf will crash below with off-map x and y
919	if (inv)	921	if (!inv)
920	{	922	return;
		923
921	/* Only if the space blocks everything do we not process -	924	/* Only if the space blocks everything do we not process -
922	* if some form of movement is allowed, let objects	925	* if some form of movement is allowed, let objects
923	* drop on that space.	926	* drop on that space.
924	*/	927	*/
925	if (destroy_inventory || !map || map->in_memory != MAP_IN_MEMORY || GET_MAP_MOVE_BLOCK (map, x, y) == MOVE_ALL)	928	if (!drop_to_ground
		929	|| !map
		930	|| map->in_memory != MAP_ACTIVE
		931	|| map->no_drop
		932	|| ms ().move_block == MOVE_ALL)
		933	{
		934	while (inv)
		935	inv->destroy ();
		936	}
		937	else
		938	{ /* Put objects in inventory onto this space */
		939	while (inv)
926	{	940	{
927	object *op = inv;	941	object *op = inv;
928		942
929	while (op)	943	if (op->flag [FLAG_STARTEQUIP]
930	{	944	|| op->flag [FLAG_NO_DROP]
931	object *tmp = op->below;	945	|| op->type == RUNE
932	op->destroy (destroy_inventory);	946	|| op->type == TRAP
933	op = tmp;	947	|| op->flag [FLAG_IS_A_TEMPLATE]
934	}	948	|| op->flag [FLAG_DESTROY_ON_DEATH])
		949	op->destroy ();
		950	else
		951	map->insert (op, x, y);
935	}	952	}
936	else	953	}
937	{ /* Put objects in inventory onto this space */	954	}
938	object *op = inv;
939		955
940	while (op)	956	/*
941	{	957	* Remove and free all objects in the inventory of the given object.
942	object *tmp = op->below;	958	* Unlike destroy_inv, this assumes the *this is destroyed as well
		959	* well, so we can (and have to!) take shortcuts.
		960	*/
		961	void
		962	object::destroy_inv_fast ()
		963	{
		964	while (object *op = inv)
		965	{
		966	// remove from object the fast way
		967	op->flag [FLAG_REMOVED] = true;
		968	op->env = 0;
		969	if ((inv = inv->below))
		970	inv->above = 0;
943		971
944	op->remove ();	972	// then destroy
945
946	if (QUERY_FLAG (op, FLAG_STARTEQUIP)
947	|| QUERY_FLAG (op, FLAG_NO_DROP) || op->type == RUNE || op->type == TRAP || QUERY_FLAG (op, FLAG_IS_A_TEMPLATE))
948	op->destroy ();	973	op->destroy ();
949	else	974	}
950	{	975	}
951	op->x = x;
952	op->y = y;
953	insert_ob_in_map (op, map, 0, 0); /* Insert in same map as the envir */
954	}
955		976
956	op = tmp;	977	void
957	}	978	object::freelist_free (int count)
958	}	979	{
		980	while (count-- && freelist)
959	}	981	{
		982	freelist_item *next = freelist->next;
		983	// count is being "destroyed"
		984
		985	sfree ((char *)freelist, sizeof (object));
		986
		987	freelist = next;
		988	--free_count;
		989	}
		990	}
		991
		992	object *
		993	object::create ()
		994	{
		995	object *op;
		996
		997	if (freelist)
		998	{
		999	freelist_item li = *freelist;
		1000	memset (freelist, 0, sizeof (object));
		1001
		1002	op = new (freelist) object;
		1003	op->count = li.count;
		1004
		1005	freelist = li.next;
		1006	--free_count;
		1007	}
		1008	else
		1009	{
		1010	void *ni = salloc0<char> (sizeof (object));
		1011
		1012	op = new(ni) object;
		1013
		1014	op->count = ++object_count;
		1015	}
		1016
		1017	op->link ();
		1018
		1019	return op;
		1020	}
		1021
		1022	void
		1023	object::do_delete ()
		1024	{
		1025	uint32_t count = this->count;
		1026
		1027	this->~object ();
		1028
		1029	freelist_item *li = (freelist_item *)this;
		1030	li->next = freelist;
		1031	li->count = count;
		1032
		1033	freelist = li;
		1034	++free_count;
		1035	}
		1036
		1037	static struct freed_map : maptile
		1038	{
		1039	freed_map ()
		1040	: maptile (3, 3)
		1041	{
		1042	path = "<freed objects map>";
		1043	name = "/internal/freed_objects_map";
		1044	no_drop = 1;
		1045	no_reset = 1;
		1046
		1047	in_memory = MAP_ACTIVE;
		1048	}
		1049
		1050	~freed_map ()
		1051	{
		1052	destroy ();
		1053	}
		1054	} freed_map; // freed objects are moved here to avoid crashes
		1055
		1056	void
		1057	object::do_destroy ()
		1058	{
		1059	if (flag [FLAG_IS_LINKED])
		1060	remove_link ();
		1061
		1062	if (flag [FLAG_FRIENDLY])
		1063	remove_friendly_object (this);
		1064
		1065	remove ();
		1066
		1067	attachable::do_destroy ();
		1068
		1069	deactivate ();
		1070	unlink ();
		1071
		1072	flag [FLAG_FREED] = 1;
960		1073
961	// hack to ensure that freed objects still have a valid map	1074	// hack to ensure that freed objects still have a valid map
962	{
963	static maptile *freed_map; // freed objects are moved here to avoid crashes
964
965	if (!freed_map)
966	{
967	freed_map = new maptile;
968
969	freed_map->name = "/internal/freed_objects_map";
970	freed_map->width = 3;
971	freed_map->height = 3;
972
973	freed_map->allocate ();
974	}
975
976	map = freed_map;	1075	map = &freed_map;
977	x = 1;	1076	x = 1;
978	y = 1;	1077	y = 1;
		1078
		1079	if (more)
		1080	{
		1081	more->destroy ();
		1082	more = 0;
979	}	1083	}
980		1084
		1085	head = 0;
		1086
981	// clear those pointers that likely might have circular references to us	1087	// clear those pointers that likely might cause circular references
982	owner = 0;	1088	owner = 0;
983	enemy = 0;	1089	enemy = 0;
984	attacked_by = 0;	1090	attacked_by = 0;
985		1091	current_weapon = 0;
986	// only relevant for players(?), but make sure of it anyways
987	contr = 0;
988
989	/* Remove object from the active list */
990	speed = 0;
991	update_ob_speed (this);
992
993	unlink ();
994
995	mortals.push_back (this);
996	}	1092	}
997		1093
998	/*
999	* sub_weight() recursively (outwards) subtracts a number from the
1000	* weight of an object (and what is carried by it's environment(s)).
1001	*/
1002	void	1094	void
1003	sub_weight (object *op, signed long weight)	1095	object::destroy ()
1004	{	1096	{
1005	while (op != NULL)	1097	if (destroyed ())
1006	{	1098	return;
1007	if (op->type == CONTAINER)
1008	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1009		1099
1010	op->carrying -= weight;	1100	if (!is_head () && !head->destroyed ())
1011	op = op->env;
1012	}	1101	{
		1102	LOG (llevError | logBacktrace, "tried to destroy the tail of an object");
		1103	head->destroy ();
		1104	return;
		1105	}
		1106
		1107	destroy_inv_fast ();
		1108
		1109	if (is_head ())
		1110	if (sound_destroy)
		1111	play_sound (sound_destroy);
		1112	else if (flag [FLAG_MONSTER])
		1113	play_sound (sound_find ("monster_destroy")); // quick hack, too lazy to create a generic mechanism
		1114
		1115	attachable::destroy ();
1013	}	1116	}
1014		1117
1015	/* op->remove ():	1118	/* op->remove ():
1016	* This function removes the object op from the linked list of objects	1119	* This function removes the object op from the linked list of objects
1017	* which it is currently tied to. When this function is done, the	1120	* which it is currently tied to. When this function is done, the
1018	* object will have no environment. If the object previously had an	1121	* object will have no environment. If the object previously had an
1019	* environment, the x and y coordinates will be updated to	1122	* environment, the x and y coordinates will be updated to
1020	* the previous environment.	1123	* the previous environment.
1021	* Beware: This function is called from the editor as well!
1022	*/	1124	*/
1023	void	1125	void
1024	object::remove ()	1126	object::do_remove ()
1025	{	1127	{
1026	object *tmp, *last = 0;	1128	if (flag [FLAG_REMOVED])
1027	object *otmp;
1028
1029	int check_walk_off;
1030
1031	if (QUERY_FLAG (this, FLAG_REMOVED))
1032	return;	1129	return;
1033		1130
1034	SET_FLAG (this, FLAG_REMOVED);	1131	INVOKE_OBJECT (REMOVE, this);
		1132
		1133	flag [FLAG_REMOVED] = true;
1035		1134
1036	if (more)	1135	if (more)
1037	more->remove ();	1136	more->remove ();
1038		1137
1039	/*	1138	/*
1040	* In this case, the object to be removed is in someones	1139	* In this case, the object to be removed is in someones
1041	* inventory.	1140	* inventory.
1042	*/	1141	*/
1043	if (env)	1142	if (env)
1044	{	1143	{
1045	if (nrof)	1144	flag [FLAG_REMOVED] = false; // hack around the issue of visible_to checking flag_removed
1046	sub_weight (env, weight * nrof);	1145	if (object *pl = visible_to ())
1047	else	1146	esrv_del_item (pl->contr, count);
1048	sub_weight (env, weight + carrying);	1147	flag [FLAG_REMOVED] = true; // hack around the issue of visible_to checking flag_removed
1049		1148
1050	/* NO_FIX_PLAYER is set when a great many changes are being	1149	adjust_weight (env, -total_weight ());
1051	* made to players inventory. If set, avoiding the call
1052	* to save cpu time.
1053	*/
1054	if ((otmp = is_player_inv (env)) != NULL && otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1055	fix_player (otmp);
1056		1150
1057	if (above != NULL)	1151	object *pl = in_player ();
1058	above->below = below;
1059	else
1060	env->inv = below;
1061
1062	if (below != NULL)
1063	below->above = above;
1064		1152
1065	/* we set up values so that it could be inserted into	1153	/* we set up values so that it could be inserted into
1066	* the map, but we don't actually do that - it is up	1154	* the map, but we don't actually do that - it is up
1067	* to the caller to decide what we want to do.	1155	* to the caller to decide what we want to do.
1068	*/	1156	*/
1069	x = env->x, y = env->y;
1070	map = env->map;	1157	map = env->map;
1071	above = 0, below = 0;	1158	x = env->x;
1072	env = 0;	1159	y = env->y;
1073	}
1074	else if (map)
1075	{
1076	/* Re did the following section of code - it looks like it had
1077	* lots of logic for things we no longer care about
1078	*/
1079		1160
1080	/* link the object above us */	1161	// make sure cmov optimisation is applicable
1081	if (above)	1162	*(above ? &above->below : &env->inv) = below;
1082	above->below = below;	1163	*(below ? &below->above : &above ) = above; // &above is just a dummy
1083	else
1084	SET_MAP_TOP (map, x, y, below); /* we were top, set new top */
1085
1086	/* Relink the object below us, if there is one */
1087	if (below)
1088	below->above = above;
1089	else
1090	{
1091	/* Nothing below, which means we need to relink map object for this space
1092	* use translated coordinates in case some oddness with map tiling is
1093	* evident
1094	*/
1095	if (GET_MAP_OB (map, x, y) != this)
1096	{
1097	char *dump = dump_object (this);
1098	LOG (llevError,
1099	"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);
1100	free (dump);
1101	dump = dump_object (GET_MAP_OB (map, x, y));
1102	LOG (llevError, "%s\n", dump);
1103	free (dump);
1104	}
1105
1106	SET_MAP_OB (map, x, y, above); /* goes on above it. */
1107	}
1108		1164
1109	above = 0;	1165	above = 0;
1110	below = 0;	1166	below = 0;
		1167	env = 0;
		1168
		1169	if (pl && pl->is_player ())
		1170	{
		1171	if (expect_false (pl->contr->combat_ob == this))
		1172	{
		1173	pl->apply (pl->contr->combat_ob, AP_UNAPPLY);
		1174	pl->contr->combat_ob = 0;
		1175	if (pl->contr->ranged_ob) pl->apply (pl->contr->ranged_ob);
		1176	}
		1177
		1178	if (expect_false (pl->contr->ranged_ob == this))
		1179	{
		1180	pl->apply (pl->contr->ranged_ob, AP_UNAPPLY);
		1181	pl->contr->ranged_ob = 0;
		1182	if (pl->contr->combat_ob) pl->apply (pl->contr->combat_ob);
		1183	}
		1184
		1185	pl->contr->queue_stats_update ();
		1186
		1187	if (expect_false (glow_radius) && pl->is_on_map ())
		1188	update_all_los (pl->map, pl->x, pl->y);
		1189	}
		1190	}
		1191	else if (map)
		1192	{
		1193	map->dirty = true;
		1194	mapspace &ms = this->ms ();
		1195
		1196	if (object *pl = ms.player ())
		1197	{
		1198	if (is_player ())
		1199	{
		1200	if (!flag [FLAG_WIZPASS])
		1201	ms.smell = ++mapspace::smellcount; // remember the smell of the player
		1202
		1203	// leaving a spot always closes any open container on the ground
		1204	if (container && !container->env)
		1205	// this causes spurious floorbox updates, but it ensures
		1206	// that the CLOSE event is being sent.
		1207	close_container ();
		1208
		1209	--map->players;
		1210	map->touch ();
		1211	}
		1212	else if (pl->container_ () == this)
		1213	{
		1214	// removing a container should close it
		1215	close_container ();
		1216	}
		1217	else
		1218	esrv_del_item (pl->contr, count);
		1219	}
		1220
		1221	/* link the object above us */
		1222	// re-link, make sure compiler can easily use cmove
		1223	*(above ? &above->below : &ms.top) = below;
		1224	*(below ? &below->above : &ms.bot) = above;
		1225
		1226	above = 0;
		1227	below = 0;
		1228
		1229	ms.invalidate ();
1111		1230
1112	if (map->in_memory == MAP_SAVING)	1231	if (map->in_memory == MAP_SAVING)
1113	return;	1232	return;
1114		1233
1115	check_walk_off = !QUERY_FLAG (this, FLAG_NO_APPLY);	1234	int check_walk_off = !flag [FLAG_NO_APPLY];
1116		1235
1117	for (tmp = GET_MAP_OB (map, x, y); tmp; tmp = tmp->above)	1236	if (object *pl = ms.player ())
1118	{	1237	{
1119	/* No point updating the players look faces if he is the object	1238	if (pl->container_ () == this)
1120	* being removed.
1121	*/
1122
1123	if (tmp->type == PLAYER && tmp != this)
1124	{
1125	/* If a container that the player is currently using somehow gets	1239	/* If a container that the player is currently using somehow gets
1126	* removed (most likely destroyed), update the player view	1240	* removed (most likely destroyed), update the player view
1127	* appropriately.	1241	* appropriately.
1128	*/	1242	*/
1129	if (tmp->container == this)	1243	pl->close_container ();
		1244
		1245	//TODO: the floorbox prev/next might need updating
		1246	//esrv_del_item (pl->contr, count);
		1247	//TODO: update floorbox to preserve ordering
		1248	if (pl->contr->ns)
		1249	pl->contr->ns->floorbox_update ();
		1250	}
		1251
		1252	if (check_walk_off)
		1253	for (object *above, *tmp = ms.bot; tmp; tmp = above)
1130	{	1254	{
1131	CLEAR_FLAG (this, FLAG_APPLIED);	1255	above = tmp->above;
1132	tmp->container = 0;
1133	}
1134		1256
1135	tmp->contr->socket.update_look = 1;	1257	/* No point updating the players look faces if he is the object
		1258	* being removed.
1136	}	1259	*/
1137		1260
1138	/* See if player moving off should effect something */	1261	/* See if object moving off should effect something */
1139	if (check_walk_off
1140	&& ((move_type & tmp->move_off)	1262	if ((move_type & tmp->move_off)
1141	&& (move_type & ~tmp->move_off & ~tmp->move_block) == 0))	1263	&& (move_type & ~tmp->move_off & ~tmp->move_block) == 0)
1142	{
1143	move_apply (tmp, this, 0);	1264	move_apply (tmp, this, 0);
1144
1145	if (destroyed ())
1146	LOG (llevError, "BUG: remove_ob(): name %s, destroyed leaving object\n", tmp->debug_desc ());
1147	}	1265	}
1148		1266
1149	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */	1267	if (affects_los ())
1150
1151	if (tmp->above == tmp)
1152	tmp->above = 0;
1153
1154	last = tmp;
1155	}
1156
1157	/* last == NULL of there are no objects on this space */
1158	if (!last)
1159	{
1160	/* set P_NEED_UPDATE, otherwise update_position will complain. In theory,
1161	* we could preserve the flags (GET_MAP_FLAGS), but update_position figures
1162	* those out anyways, and if there are any flags set right now, they won't
1163	* be correct anyways.
1164	*/
1165	SET_MAP_FLAGS (map, x, y, P_NEED_UPDATE);
1166	update_position (map, x, y);
1167	}
1168	else
1169	update_object (last, UP_OBJ_REMOVE);
1170
1171	if (QUERY_FLAG (this, FLAG_BLOCKSVIEW) || glow_radius)
1172	update_all_los (map, x, y);	1268	update_all_los (map, x, y);
1173	}	1269	}
1174	}	1270	}
1175		1271
1176	/*	1272	/*
…		…
1185	merge_ob (object *op, object *top)	1281	merge_ob (object *op, object *top)
1186	{	1282	{
1187	if (!op->nrof)	1283	if (!op->nrof)
1188	return 0;	1284	return 0;
1189		1285
1190	if (top == NULL)	1286	if (!top)
1191	for (top = op; top != NULL && top->above != NULL; top = top->above);	1287	for (top = op; top && top->above; top = top->above)
		1288	;
1192		1289
1193	for (; top != NULL; top = top->below)	1290	for (; top; top = top->below)
1194	{	1291	if (object::can_merge (op, top))
1195	if (top == op)
1196	continue;
1197	if (CAN_MERGE (op, top))
1198	{	1292	{
1199	top->nrof += op->nrof;	1293	top->nrof += op->nrof;
1200		1294
1201	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/	1295	if (object *pl = top->visible_to ())
1202	op->weight = 0; /* Don't want any adjustements now */	1296	esrv_update_item (UPD_NROF, pl, top);
		1297
		1298	op->weight = 0; // cancel the addition above
		1299	op->carrying = 0; // must be 0 already
		1300
1203	op->destroy ();	1301	op->destroy ();
		1302
1204	return top;	1303	return top;
1205	}	1304	}
1206	}
1207		1305
1208	return 0;	1306	return 0;
1209	}	1307	}
1210		1308
		1309	void
		1310	object::expand_tail ()
		1311	{
		1312	if (more)
		1313	return;
		1314
		1315	object *prev = this;
		1316
		1317	for (archetype *at = (archetype *)arch->more; at; at = (archetype *)at->more)
		1318	{
		1319	object *op = at->instance ();
		1320
		1321	op->name = name;
		1322	op->name_pl = name_pl;
		1323	op->title = title;
		1324
		1325	op->head = this;
		1326	prev->more = op;
		1327
		1328	prev = op;
		1329	}
		1330	}
		1331
1211	/*	1332	/*
1212	* same as insert_ob_in_map except it handle separate coordinates and do a clean	1333	* same as insert_ob_in_map except it handles separate coordinates and does a clean
1213	* job preparing multi-part monsters	1334	* job preparing multi-part monsters.
1214	*/	1335	*/
1215	object *	1336	object *
1216	insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)	1337	insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)
1217	{	1338	{
1218	object *tmp;	1339	op->remove ();
1219		1340
1220	if (op->head)
1221	op = op->head;
1222
1223	for (tmp = op; tmp; tmp = tmp->more)	1341	for (object *tmp = op->head_ (); tmp; tmp = tmp->more)
1224	{	1342	{
1225	tmp->x = x + tmp->arch->clone.x;	1343	tmp->x = x + tmp->arch->x;
1226	tmp->y = y + tmp->arch->clone.y;	1344	tmp->y = y + tmp->arch->y;
1227	}	1345	}
1228		1346
1229	return insert_ob_in_map (op, m, originator, flag);	1347	return insert_ob_in_map (op, m, originator, flag);
1230	}	1348	}
1231		1349
…		…
1244	* Passing 0 for flag gives proper default values, so flag really only needs	1362	* Passing 0 for flag gives proper default values, so flag really only needs
1245	* to be set if special handling is needed.	1363	* to be set if special handling is needed.
1246	*	1364	*
1247	* Return value:	1365	* Return value:
1248	* new object if 'op' was merged with other object	1366	* new object if 'op' was merged with other object
1249	* NULL if 'op' was destroyed	1367	* NULL if there was an error (destroyed, blocked etc.)
1250	* just 'op' otherwise	1368	* just 'op' otherwise
1251	*/	1369	*/
1252
1253	object *	1370	object *
1254	insert_ob_in_map (object *op, maptile *m, object *originator, int flag)	1371	insert_ob_in_map (object *op, maptile *m, object *originator, int flag)
1255	{	1372	{
1256	object *tmp, *top, *floor = NULL;	1373	op->remove ();
1257	sint16 x, y;
1258		1374
1259	if (QUERY_FLAG (op, FLAG_FREED))	1375	if (m == &freed_map)//D TODO: remove soon
1260	{	1376	{//D
1261	LOG (llevError, "Trying to insert freed object!\n");	1377	LOG (llevError | logBacktrace, "tries to insret object on freed objects map: %s", op->debug_desc ());//D
1262	return NULL;
1263	}	1378	}//D
1264
1265	if (m == NULL)
1266	{
1267	char *dump = dump_object (op);
1268	LOG (llevError, "Trying to insert in null-map!\n%s\n", dump);
1269	free (dump);
1270	return op;
1271	}
1272
1273	if (out_of_map (m, op->x, op->y))
1274	{
1275	char *dump = dump_object (op);
1276	LOG (llevError, "Trying to insert object outside the map.\n%s\n", dump);
1277	#ifdef MANY_CORES
1278	/* Better to catch this here, as otherwise the next use of this object
1279	* is likely to cause a crash. Better to find out where it is getting
1280	* improperly inserted.
1281	*/
1282	abort ();
1283	#endif
1284	free (dump);
1285	return op;
1286	}
1287
1288	if (!QUERY_FLAG (op, FLAG_REMOVED))
1289	{
1290	char *dump = dump_object (op);
1291	LOG (llevError, "Trying to insert (map) inserted object.\n%s\n", dump);
1292	free (dump);
1293	return op;
1294	}
1295
1296	if (op->more != NULL)
1297	{
1298	/* The part may be on a different map. */
1299
1300	object *more = op->more;
1301
1302	/* We really need the caller to normalize coordinates - if
1303	* we set the map, that doesn't work if the location is within
1304	* a map and this is straddling an edge. So only if coordinate
1305	* is clear wrong do we normalize it.
1306	*/
1307	if (OUT_OF_REAL_MAP (more->map, more->x, more->y))
1308	more->map = get_map_from_coord (m, &more->x, &more->y);
1309	else if (!more->map)
1310	{
1311	/* For backwards compatibility - when not dealing with tiled maps,
1312	* more->map should always point to the parent.
1313	*/
1314	more->map = m;
1315	}
1316
1317	if (insert_ob_in_map (more, more->map, originator, flag) == NULL)
1318	{
1319	if (!op->head)
1320	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");
1321
1322	return NULL;
1323	}
1324	}
1325
1326	CLEAR_FLAG (op, FLAG_REMOVED);
1327		1379
1328	/* Ideally, the caller figures this out. However, it complicates a lot	1380	/* Ideally, the caller figures this out. However, it complicates a lot
1329	* of areas of callers (eg, anything that uses find_free_spot would now	1381	* of areas of callers (eg, anything that uses find_free_spot would now
1330	* need extra work	1382	* need extra work
1331	*/	1383	*/
1332	op->map = get_map_from_coord (m, &op->x, &op->y);	1384	maptile *newmap = m;
1333	x = op->x;	1385	if (!xy_normalise (newmap, op->x, op->y))
1334	y = op->y;	1386	{
		1387	op->head_ ()->destroy ();// remove head_ once all tail object destroyers found
		1388	return 0;
		1389	}
		1390
		1391	if (object *more = op->more)
		1392	if (!insert_ob_in_map (more, m, originator, flag))
		1393	return 0;
		1394
		1395	op->flag [FLAG_REMOVED] = false;
		1396	op->env = 0;
		1397	op->map = newmap;
		1398
		1399	mapspace &ms = op->ms ();
1335		1400
1336	/* this has to be done after we translate the coordinates.	1401	/* this has to be done after we translate the coordinates.
1337	*/	1402	*/
1338	if (op->nrof && !(flag & INS_NO_MERGE))	1403	if (op->nrof && !(flag & INS_NO_MERGE))
1339	for (tmp = GET_MAP_OB (op->map, x, y); tmp != NULL; tmp = tmp->above)	1404	for (object *tmp = ms.bot; tmp; tmp = tmp->above)
1340	if (CAN_MERGE (op, tmp))	1405	if (object::can_merge (op, tmp))
1341	{	1406	{
		1407	// TODO: we actually want to update tmp, not op,
		1408	// but some caller surely breaks when we return tmp
		1409	// from here :/
1342	op->nrof += tmp->nrof;	1410	op->nrof += tmp->nrof;
1343	tmp->destroy ();	1411	tmp->destroy ();
1344	}	1412	}
1345		1413
1346	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */	1414	op->clr_flag (FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */
1347	CLEAR_FLAG (op, FLAG_INV_LOCKED);	1415	op->clr_flag (FLAG_INV_LOCKED);
1348		1416
1349	if (!QUERY_FLAG (op, FLAG_ALIVE))	1417	if (!op->flag [FLAG_ALIVE])
1350	CLEAR_FLAG (op, FLAG_NO_STEAL);	1418	op->clr_flag (FLAG_NO_STEAL);
1351		1419
1352	if (flag & INS_BELOW_ORIGINATOR)	1420	if (flag & INS_BELOW_ORIGINATOR)
1353	{	1421	{
1354	if (originator->map != op->map || originator->x != op->x || originator->y != op->y)	1422	if (originator->map != op->map || originator->x != op->x || originator->y != op->y)
1355	{	1423	{
1356	LOG (llevError, "insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");	1424	LOG (llevError, "insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");
1357	abort ();	1425	abort ();
1358	}	1426	}
1359		1427
		1428	if (!originator->is_on_map ())
		1429	{
		1430	LOG (llevError, "insert_ob_in_map(%s) called with INS_BELOW_ORIGINATOR when originator '%s' not on map",
		1431	op->debug_desc (), originator->debug_desc ());
		1432	abort ();
		1433	}
		1434
1360	op->above = originator;	1435	op->above = originator;
1361	op->below = originator->below;	1436	op->below = originator->below;
1362
1363	if (op->below)
1364	op->below->above = op;
1365	else
1366	SET_MAP_OB (op->map, op->x, op->y, op);
1367
1368	/* since *below* originator, no need to update top */
1369	originator->below = op;	1437	originator->below = op;
		1438
		1439	*(op->below ? &op->below->above : &ms.bot) = op;
1370	}	1440	}
1371	else	1441	else
1372	{	1442	{
		1443	object *floor = 0;
		1444	object *top = ms.top;
		1445
1373	/* If there are other objects, then */	1446	/* If there are other objects, then */
1374	if ((!(flag & INS_MAP_LOAD)) && ((top = GET_MAP_OB (op->map, op->x, op->y)) != NULL))	1447	if (top)
1375	{	1448	{
1376	object *last = NULL;
1377
1378	/*	1449	/*
1379	* If there are multiple objects on this space, we do some trickier handling.	1450	* If there are multiple objects on this space, we do some trickier handling.
1380	* We've already dealt with merging if appropriate.	1451	* We've already dealt with merging if appropriate.
1381	* Generally, we want to put the new object on top. But if	1452	* Generally, we want to put the new object on top. But if
1382	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last	1453	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last
…		…
1385	* once we get to them. This reduces the need to traverse over all of	1456	* once we get to them. This reduces the need to traverse over all of
1386	* them when adding another one - this saves quite a bit of cpu time	1457	* them when adding another one - this saves quite a bit of cpu time
1387	* when lots of spells are cast in one area. Currently, it is presumed	1458	* when lots of spells are cast in one area. Currently, it is presumed
1388	* that flying non pickable objects are spell objects.	1459	* that flying non pickable objects are spell objects.
1389	*/	1460	*/
1390		1461	for (object *tmp = ms.bot; tmp; tmp = tmp->above)
1391	while (top != NULL)
1392	{	1462	{
1393	if (QUERY_FLAG (top, FLAG_IS_FLOOR) || QUERY_FLAG (top, FLAG_OVERLAY_FLOOR))	1463	if (tmp->flag [FLAG_IS_FLOOR] || tmp->flag [FLAG_OVERLAY_FLOOR])
1394	floor = top;	1464	floor = tmp;
1395		1465
1396	if (QUERY_FLAG (top, FLAG_NO_PICK) && (top->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (top, FLAG_IS_FLOOR))	1466	if (tmp->flag [FLAG_NO_PICK] && (tmp->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !tmp->flag [FLAG_IS_FLOOR])
1397	{	1467	{
1398	/* We insert above top, so we want this object below this */	1468	/* We insert above top, so we want this object below this */
1399	top = top->below;	1469	top = tmp->below;
1400	break;	1470	break;
1401	}	1471	}
1402		1472
1403	last = top;
1404	top = top->above;	1473	top = tmp;
1405	}	1474	}
1406
1407	/* Don't want top to be NULL, so set it to the last valid object */
1408	top = last;
1409		1475
1410	/* We let update_position deal with figuring out what the space	1476	/* We let update_position deal with figuring out what the space
1411	* looks like instead of lots of conditions here.	1477	* looks like instead of lots of conditions here.
1412	* makes things faster, and effectively the same result.	1478	* makes things faster, and effectively the same result.
1413	*/	1479	*/
1414		1480
1415	/* Have object 'fall below' other objects that block view.	1481	/* Have object 'fall below' other objects that block view.
1416	* Unless those objects are exits, type 66	1482	* Unless those objects are exits.
1417	* If INS_ON_TOP is used, don't do this processing	1483	* If INS_ON_TOP is used, don't do this processing
1418	* Need to find the object that in fact blocks view, otherwise	1484	* Need to find the object that in fact blocks view, otherwise
1419	* stacking is a bit odd.	1485	* stacking is a bit odd.
1420	*/	1486	*/
1421	if (!(flag & INS_ON_TOP) &&	1487	if (!(flag & INS_ON_TOP)
1422	(get_map_flags (op->map, NULL, op->x, op->y, NULL, NULL) & P_BLOCKSVIEW) && (op->face && !op->face->visibility))	1488	&& ms.flags () & P_BLOCKSVIEW
		1489	&& (op->face && !faces [op->face].visibility))
1423	{	1490	{
		1491	object *last;
		1492
1424	for (last = top; last != floor; last = last->below)	1493	for (last = top; last != floor; last = last->below)
1425	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))	1494	if (last->flag [FLAG_BLOCKSVIEW] && (last->type != EXIT))
1426	break;	1495	break;
		1496
1427	/* Check to see if we found the object that blocks view,	1497	/* Check to see if we found the object that blocks view,
1428	* and make sure we have a below pointer for it so that	1498	* and make sure we have a below pointer for it so that
1429	* we can get inserted below this one, which requires we	1499	* we can get inserted below this one, which requires we
1430	* set top to the object below us.	1500	* set top to the object below us.
1431	*/	1501	*/
1432	if (last && last->below && last != floor)	1502	if (last && last->below && last != floor)
1433	top = last->below;	1503	top = last->below;
1434	}	1504	}
1435	} /* If objects on this space */	1505	} /* If objects on this space */
1436		1506
1437	if (flag & INS_MAP_LOAD)
1438	top = GET_MAP_TOP (op->map, op->x, op->y);
1439
1440	if (flag & INS_ABOVE_FLOOR_ONLY)	1507	if (flag & INS_ABOVE_FLOOR_ONLY)
1441	top = floor;	1508	top = floor;
1442		1509
1443	/* Top is the object that our object (op) is going to get inserted above.	1510	// insert object above top, or bottom-most if top = 0
1444	*/
1445
1446	/* First object on this space */
1447	if (!top)	1511	if (!top)
1448	{	1512	{
1449	op->above = GET_MAP_OB (op->map, op->x, op->y);
1450
1451	if (op->above)
1452	op->above->below = op;
1453
1454	op->below = NULL;	1513	op->below = 0;
1455	SET_MAP_OB (op->map, op->x, op->y, op);	1514	op->above = ms.bot;
		1515	ms.bot = op;
		1516
		1517	*(op->above ? &op->above->below : &ms.top) = op;
1456	}	1518	}
1457	else	1519	else
1458	{ /* get inserted into the stack above top */	1520	{
1459	op->above = top->above;	1521	op->above = top->above;
1460
1461	if (op->above)
1462	op->above->below = op;	1522	top->above = op;
1463		1523
1464	op->below = top;	1524	op->below = top;
1465	top->above = op;	1525	*(op->above ? &op->above->below : &ms.top) = op;
1466	}	1526	}
		1527	}
1467		1528
1468	if (op->above == NULL)	1529	if (op->is_player ())
1469	SET_MAP_TOP (op->map, op->x, op->y, op);	1530	{
1470	} /* else not INS_BELOW_ORIGINATOR */
1471
1472	if (op->type == PLAYER)
1473	op->contr->do_los = 1;	1531	op->contr->do_los = 1;
		1532	++op->map->players;
		1533	op->map->touch ();
		1534	}
1474		1535
1475	/* If we have a floor, we know the player, if any, will be above	1536	op->map->dirty = true;
1476	* it, so save a few ticks and start from there.	1537
1477	*/	1538	if (object *pl = ms.player ())
1478	if (!(flag & INS_MAP_LOAD))	1539	//TODO: the floorbox prev/next might need updating
1479	for (tmp = floor ? floor : GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)	1540	//esrv_send_item (pl, op);
1480	if (tmp->type == PLAYER)	1541	//TODO: update floorbox to preserve ordering
1481	tmp->contr->socket.update_look = 1;	1542	if (pl->contr->ns)
		1543	pl->contr->ns->floorbox_update ();
1482		1544
1483	/* If this object glows, it may affect lighting conditions that are	1545	/* If this object glows, it may affect lighting conditions that are
1484	* visible to others on this map. But update_all_los is really	1546	* visible to others on this map. But update_all_los is really
1485	* an inefficient way to do this, as it means los for all players	1547	* an inefficient way to do this, as it means los for all players
1486	* on the map will get recalculated. The players could very well	1548	* on the map will get recalculated. The players could very well
1487	* be far away from this change and not affected in any way -	1549	* be far away from this change and not affected in any way -
1488	* this should get redone to only look for players within range,	1550	* this should get redone to only look for players within range,
1489	* or just updating the P_NEED_UPDATE for spaces within this area	1551	* or just updating the P_UPTODATE for spaces within this area
1490	* of effect may be sufficient.	1552	* of effect may be sufficient.
1491	*/	1553	*/
1492	if (MAP_DARKNESS (op->map) && (op->glow_radius != 0))	1554	if (op->affects_los ())
		1555	{
		1556	op->ms ().invalidate ();
1493	update_all_los (op->map, op->x, op->y);	1557	update_all_los (op->map, op->x, op->y);
		1558	}
1494		1559
1495	/* updates flags (blocked, alive, no magic, etc) for this map space */	1560	/* updates flags (blocked, alive, no magic, etc) for this map space */
1496	update_object (op, UP_OBJ_INSERT);	1561	update_object (op, UP_OBJ_INSERT);
1497		1562
		1563	INVOKE_OBJECT (INSERT, op);
		1564
1498	/* Don't know if moving this to the end will break anything. However,	1565	/* Don't know if moving this to the end will break anything. However,
1499	* we want to have update_look set above before calling this.	1566	* we want to have floorbox_update called before calling this.
1500	*	1567	*
1501	* check_move_on() must be after this because code called from	1568	* check_move_on() must be after this because code called from
1502	* check_move_on() depends on correct map flags (so functions like	1569	* check_move_on() depends on correct map flags (so functions like
1503	* blocked() and wall() work properly), and these flags are updated by	1570	* blocked() and wall() work properly), and these flags are updated by
1504	* update_object().	1571	* update_object().
1505	*/	1572	*/
1506		1573
1507	/* if this is not the head or flag has been passed, don't check walk on status */	1574	/* if this is not the head or flag has been passed, don't check walk on status */
1508	if (!(flag & INS_NO_WALK_ON) && !op->head)	1575	if (!(flag & INS_NO_WALK_ON) && op->is_head ())
1509	{	1576	{
1510	if (check_move_on (op, originator))	1577	if (check_move_on (op, originator))
1511	return NULL;	1578	return 0;
1512		1579
1513	/* If we are a multi part object, lets work our way through the check	1580	/* If we are a multi part object, lets work our way through the check
1514	* walk on's.	1581	* walk on's.
1515	*/	1582	*/
1516	for (tmp = op->more; tmp != NULL; tmp = tmp->more)	1583	for (object *tmp = op->more; tmp; tmp = tmp->more)
1517	if (check_move_on (tmp, originator))	1584	if (check_move_on (tmp, originator))
1518	return NULL;	1585	return 0;
1519	}	1586	}
1520		1587
1521	return op;	1588	return op;
1522	}	1589	}
1523		1590
1524	/* this function inserts an object in the map, but if it	1591	/* this function inserts an object in the map, but if it
1525	* finds an object of its own type, it'll remove that one first.	1592	* finds an object of its own type, it'll remove that one first.
1526	* op is the object to insert it under: supplies x and the map.	1593	* op is the object to insert it under: supplies x and the map.
1527	*/	1594	*/
1528	void	1595	void
1529	replace_insert_ob_in_map (const char *arch_string, object *op)	1596	replace_insert_ob_in_map (shstr_tmp archname, object *op)
1530	{	1597	{
1531	object *
1532	tmp;
1533	object *
1534	tmp1;
1535
1536	/* first search for itself and remove any old instances */	1598	/* first search for itself and remove any old instances */
1537		1599
1538	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)	1600	for (object *tmp = op->ms ().bot; tmp; tmp = tmp->above)
1539	if (!strcmp (tmp->arch->name, arch_string)) /* same archetype */	1601	if (tmp->arch->archname == archname) /* same archetype */
1540	tmp->destroy ();	1602	tmp->destroy ();
1541		1603
1542	tmp1 = arch_to_object (archetype::find (arch_string));	1604	object *tmp = archetype::find (archname)->instance ();
1543		1605
1544	tmp1->x = op->x;	1606	tmp->x = op->x;
1545	tmp1->y = op->y;	1607	tmp->y = op->y;
		1608
1546	insert_ob_in_map (tmp1, op->map, op, 0);	1609	insert_ob_in_map (tmp, op->map, op, 0);
1547	}	1610	}
1548
1549	/*
1550	* get_split_ob(ob,nr) splits up ob into two parts. The part which
1551	* is returned contains nr objects, and the remaining parts contains
1552	* the rest (or is removed and freed if that number is 0).
1553	* On failure, NULL is returned, and the reason put into the
1554	* global static errmsg array.
1555	*/
1556		1611
1557	object *	1612	object *
1558	get_split_ob (object *orig_ob, uint32 nr)	1613	object::insert_at (object *where, object *originator, int flags)
1559	{	1614	{
1560	object *newob;	1615	if (where->env)
1561	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);	1616	return where->env->insert (this);
1562		1617	else
1563	if (orig_ob->nrof < nr)	1618	return where->map->insert (this, where->x, where->y, originator, flags);
1564	{
1565	sprintf (errmsg, "There are only %d %ss.", orig_ob->nrof ? orig_ob->nrof : 1, &orig_ob->name);
1566	return NULL;
1567	}
1568
1569	newob = object_create_clone (orig_ob);
1570
1571	if ((orig_ob->nrof -= nr) < 1)
1572	orig_ob->destroy (1);
1573	else if (!is_removed)
1574	{
1575	if (orig_ob->env != NULL)
1576	sub_weight (orig_ob->env, orig_ob->weight * nr);
1577	if (orig_ob->env == NULL && orig_ob->map->in_memory != MAP_IN_MEMORY)
1578	{
1579	strcpy (errmsg, "Tried to split object whose map is not in memory.");
1580	LOG (llevDebug, "Error, Tried to split object whose map is not in memory.\n");
1581	return NULL;
1582	}
1583	}
1584
1585	newob->nrof = nr;
1586
1587	return newob;
1588	}	1619	}
1589		1620
		1621	// check whether we can put this into the map, respect max_volume, max_items
		1622	bool
		1623	object::can_drop_at (maptile *m, int x, int y, object *originator)
		1624	{
		1625	mapspace &ms = m->at (x, y);
		1626
		1627	int items = ms.items ();
		1628
		1629	if (!items // testing !items ensures we can drop at least one item
		1630	|| (items < m->max_items
		1631	&& ms.volume () < m->max_volume))
		1632	return true;
		1633
		1634	if (originator && originator->is_player ())
		1635	originator->contr->failmsgf (
		1636	"No matter how hard you try, you just cannot put the %s here H<Try to remove some items from the floor first.>",
		1637	query_name ()
		1638	);
		1639
		1640	return false;
		1641	}
		1642
1590	/*	1643	/*
1591	* decrease_ob_nr(object, number) decreases a specified number from	1644	* decrease(object, number) decreases a specified number from
1592	* the amount of an object. If the amount reaches 0, the object	1645	* the amount of an object. If the amount reaches 0, the object
1593	* is subsequently removed and freed.	1646	* is subsequently removed and freed.
1594	*	1647	*
1595	* Return value: 'op' if something is left, NULL if the amount reached 0	1648	* Return value: 'op' if something is left, NULL if the amount reached 0
1596	*/	1649	*/
		1650	bool
		1651	object::decrease (sint32 nr)
		1652	{
		1653	if (!nr)
		1654	return true;
1597		1655
		1656	nr = min (nr, nrof);
		1657
		1658	if (nrof > nr)
		1659	{
		1660	nrof -= nr;
		1661	adjust_weight (env, -weight * max (1, nr)); // carrying == 0
		1662
		1663	if (object *pl = visible_to ())
		1664	esrv_update_item (UPD_NROF, pl, this);
		1665
		1666	return true;
		1667	}
		1668	else
		1669	{
		1670	destroy ();
		1671	return false;
		1672	}
		1673	}
		1674
		1675	/*
		1676	* split(ob,nr) splits up ob into two parts. The part which
		1677	* is returned contains nr objects, and the remaining parts contains
		1678	* the rest (or is removed and returned if that number is 0).
		1679	* On failure, NULL is returned.
		1680	*/
1598	object *	1681	object *
1599	decrease_ob_nr (object *op, uint32 i)	1682	object::split (sint32 nr)
1600	{	1683	{
1601	object *tmp;	1684	int have = number_of ();
1602	player *pl;
1603		1685
1604	if (i == 0) /* objects with op->nrof require this check */	1686	if (have < nr)
1605	return op;	1687	return 0;
1606		1688	else if (have == nr)
1607	if (i > op->nrof)
1608	i = op->nrof;
1609
1610	if (QUERY_FLAG (op, FLAG_REMOVED))
1611	op->nrof -= i;
1612	else if (op->env != NULL)
1613	{	1689	{
1614	/* is this object in the players inventory, or sub container
1615	* therein?
1616	*/
1617	tmp = is_player_inv (op->env);
1618	/* nope. Is this a container the player has opened?
1619	* If so, set tmp to that player.
1620	* IMO, searching through all the players will mostly
1621	* likely be quicker than following op->env to the map,
1622	* and then searching the map for a player.
1623	*/
1624	if (!tmp)
1625	{
1626	for (pl = first_player; pl; pl = pl->next)
1627	if (pl->ob->container == op->env)
1628	break;
1629	if (pl)
1630	tmp = pl->ob;
1631	else
1632	tmp = NULL;
1633	}
1634
1635	if (i < op->nrof)
1636	{
1637	sub_weight (op->env, op->weight * i);
1638	op->nrof -= i;
1639	if (tmp)
1640	{
1641	esrv_send_item (tmp, op);
1642	}
1643	}
1644	else
1645	{
1646	op->remove ();	1690	remove ();
1647	op->nrof = 0;	1691	return this;
1648	if (tmp)
1649	{
1650	esrv_del_item (tmp->contr, op->count);
1651	}
1652	}
1653	}	1692	}
1654	else	1693	else
1655	{	1694	{
1656	object *above = op->above;	1695	decrease (nr);
1657		1696
1658	if (i < op->nrof)	1697	object *op = deep_clone ();
1659	op->nrof -= i;	1698	op->nrof = nr;
1660	else
1661	{
1662	op->remove ();
1663	op->nrof = 0;
1664	}
1665
1666	/* Since we just removed op, op->above is null */
1667	for (tmp = above; tmp != NULL; tmp = tmp->above)
1668	if (tmp->type == PLAYER)
1669	{
1670	if (op->nrof)
1671	esrv_send_item (tmp, op);
1672	else
1673	esrv_del_item (tmp->contr, op->count);
1674	}
1675	}
1676
1677	if (op->nrof)
1678	return op;	1699	return op;
1679	else
1680	{
1681	op->destroy ();
1682	return NULL;
1683	}
1684	}
1685
1686	/*
1687	* add_weight(object, weight) adds the specified weight to an object,
1688	* and also updates how much the environment(s) is/are carrying.
1689	*/
1690
1691	void
1692	add_weight (object *op, signed long weight)
1693	{
1694	while (op != NULL)
1695	{
1696	if (op->type == CONTAINER)
1697	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1698
1699	op->carrying += weight;
1700	op = op->env;
1701	}	1700	}
1702	}	1701	}
1703		1702
1704	object *	1703	object *
1705	insert_ob_in_ob (object *op, object *where)	1704	insert_ob_in_ob (object *op, object *where)
…		…
1710	LOG (llevError, "Trying to put object in NULL.\n%s\n", dump);	1709	LOG (llevError, "Trying to put object in NULL.\n%s\n", dump);
1711	free (dump);	1710	free (dump);
1712	return op;	1711	return op;
1713	}	1712	}
1714		1713
1715	if (where->head)	1714	if (where->head_ () != where)
1716	{	1715	{
1717	LOG (llevDebug, "Warning: Tried to insert object into wrong part of multipart object.\n");	1716	LOG (llevError | logBacktrace, "Warning: Tried to insert object into wrong part of multipart object.\n");
1718	where = where->head;	1717	where = where->head;
1719	}	1718	}
1720		1719
1721	return where->insert (op);	1720	return where->insert (op);
1722	}	1721	}
…		…
1727	* inside the object environment.	1726	* inside the object environment.
1728	*	1727	*
1729	* The function returns now pointer to inserted item, and return value can	1728	* The function returns now pointer to inserted item, and return value can
1730	* be != op, if items are merged. -Tero	1729	* be != op, if items are merged. -Tero
1731	*/	1730	*/
1732
1733	object *	1731	object *
1734	object::insert (object *op)	1732	object::insert (object *op)
1735	{	1733	{
1736	object *tmp, *otmp;
1737
1738	if (!QUERY_FLAG (op, FLAG_REMOVED))
1739	op->remove ();
1740
1741	if (op->more)	1734	if (op->more)
1742	{	1735	{
1743	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);	1736	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);
1744	return op;	1737	return op;
1745	}	1738	}
1746		1739
1747	CLEAR_FLAG (op, FLAG_OBJ_ORIGINAL);	1740	op->remove ();
1748	CLEAR_FLAG (op, FLAG_REMOVED);	1741
		1742	op->flag [FLAG_OBJ_ORIGINAL] = 0;
		1743
1749	if (op->nrof)	1744	if (op->nrof)
1750	{
1751	for (tmp = inv; tmp != NULL; tmp = tmp->below)	1745	for (object *tmp = inv; tmp; tmp = tmp->below)
1752	if (CAN_MERGE (tmp, op))	1746	if (object::can_merge (tmp, op))
1753	{	1747	{
1754	/* return the original object and remove inserted object	1748	/* return the original object and remove inserted object
1755	(client needs the original object) */	1749	(client needs the original object) */
1756	tmp->nrof += op->nrof;	1750	tmp->nrof += op->nrof;
1757	/* Weight handling gets pretty funky. Since we are adding to	1751
1758	* tmp->nrof, we need to increase the weight.	1752	if (object *pl = tmp->visible_to ())
1759	*/	1753	esrv_update_item (UPD_NROF, pl, tmp);
		1754
1760	add_weight (this, op->weight * op->nrof);	1755	adjust_weight (this, op->total_weight ());
1761	SET_FLAG (op, FLAG_REMOVED);	1756
1762	op->destroy (); /* free the inserted object */	1757	op->destroy ();
1763	op = tmp;	1758	op = tmp;
1764	op->remove (); /* and fix old object's links */	1759	goto inserted;
1765	CLEAR_FLAG (op, FLAG_REMOVED);
1766	break;
1767	}	1760	}
1768		1761
1769	/* I assume combined objects have no inventory	1762	op->owner = 0; // it's his/hers now. period.
1770	* We add the weight - this object could have just been removed
1771	* (if it was possible to merge). calling remove_ob will subtract
1772	* the weight, so we need to add it in again, since we actually do
1773	* the linking below
1774	*/
1775	add_weight (this, op->weight * op->nrof);
1776	}
1777	else
1778	add_weight (this, (op->weight + op->carrying));
1779
1780	otmp = is_player_inv (this);
1781	if (otmp && otmp->contr)
1782	if (!QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1783	fix_player (otmp);
1784
1785	op->map = NULL;	1763	op->map = 0;
		1764	op->x = 0;
		1765	op->y = 0;
		1766
		1767	op->above = 0;
		1768	op->below = inv;
1786	op->env = this;	1769	op->env = this;
1787	op->above = NULL;
1788	op->below = NULL;
1789	op->x = 0, op->y = 0;
1790		1770
		1771	if (inv)
		1772	inv->above = op;
		1773
		1774	inv = op;
		1775
		1776	op->flag [FLAG_REMOVED] = 0;
		1777
		1778	if (object *pl = op->visible_to ())
		1779	esrv_send_item (pl, op);
		1780
		1781	adjust_weight (this, op->total_weight ());
		1782
		1783	inserted:
1791	/* reset the light list and los of the players on the map */	1784	/* reset the light list and los of the players on the map */
1792	if ((op->glow_radius != 0) && map)	1785	if (op->glow_radius && is_on_map ())
1793	{	1786	{
1794	#ifdef DEBUG_LIGHTS	1787	update_stats ();
1795	LOG (llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n", op->name);
1796	#endif /* DEBUG_LIGHTS */
1797	if (MAP_DARKNESS (map))
1798	update_all_los (map, x, y);	1788	update_all_los (map, x, y);
1799	}
1800
1801	/* Client has no idea of ordering so lets not bother ordering it here.
1802	* It sure simplifies this function...
1803	*/
1804	if (!inv)
1805	inv = op;
1806	else
1807	{	1789	}
1808	op->below = inv;	1790	else if (is_player ())
1809	op->below->above = op;	1791	// if this is a player's inventory, update stats
1810	inv = op;	1792	contr->queue_stats_update ();
1811	}	1793
		1794	INVOKE_OBJECT (INSERT, this);
1812		1795
1813	return op;	1796	return op;
1814	}	1797	}
1815		1798
1816	/*	1799	/*
…		…
1831	*	1814	*
1832	* MSW 2001-07-08: Check all objects on space, not just those below	1815	* MSW 2001-07-08: Check all objects on space, not just those below
1833	* object being inserted. insert_ob_in_map may not put new objects	1816	* object being inserted. insert_ob_in_map may not put new objects
1834	* on top.	1817	* on top.
1835	*/	1818	*/
1836
1837	int	1819	int
1838	check_move_on (object *op, object *originator)	1820	check_move_on (object *op, object *originator)
1839	{	1821	{
		1822	if (op->flag [FLAG_NO_APPLY])
		1823	return 0;
		1824
1840	object *tmp;	1825	object *tmp;
1841	maptile *m = op->map;	1826	maptile *m = op->map;
1842	int x = op->x, y = op->y;	1827	int x = op->x, y = op->y;
1843		1828
1844	MoveType move_on, move_slow, move_block;	1829	mapspace &ms = m->at (x, y);
1845		1830
1846	if (QUERY_FLAG (op, FLAG_NO_APPLY))	1831	ms.update ();
1847	return 0;
1848		1832
1849	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);	1833	MoveType move_on = ms.move_on;
1850	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);	1834	MoveType move_slow = ms.move_slow;
1851	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);	1835	MoveType move_block = ms.move_block;
1852		1836
1853	/* if nothing on this space will slow op down or be applied,	1837	/* if nothing on this space will slow op down or be applied,
1854	* no need to do checking below. have to make sure move_type	1838	* no need to do checking below. have to make sure move_type
1855	* is set, as lots of objects don't have it set - we treat that	1839	* is set, as lots of objects don't have it set - we treat that
1856	* as walking.	1840	* as walking.
…		…
1867	return 0;	1851	return 0;
1868		1852
1869	/* The objects have to be checked from top to bottom.	1853	/* The objects have to be checked from top to bottom.
1870	* Hence, we first go to the top:	1854	* Hence, we first go to the top:
1871	*/	1855	*/
1872		1856	for (object *next, *tmp = ms.top; tmp; tmp = next)
1873	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL && tmp->above != NULL; tmp = tmp->above)
1874	{
1875	/* Trim the search when we find the first other spell effect
1876	* this helps performance so that if a space has 50 spell objects,
1877	* we don't need to check all of them.
1878	*/
1879	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG (tmp, FLAG_NO_PICK))
1880	break;
1881	}	1857	{
		1858	next = tmp->below;
1882		1859
1883	for (; tmp; tmp = tmp->below)
1884	{
1885	if (tmp == op)	1860	if (tmp == op)
1886	continue; /* Can't apply yourself */	1861	continue; /* Can't apply yourself */
1887		1862
1888	/* Check to see if one of the movement types should be slowed down.	1863	/* Check to see if one of the movement types should be slowed down.
1889	* Second check makes sure that the movement types not being slowed	1864	* Second check makes sure that the movement types not being slowed
1890	* (~slow_move) is not blocked on this space - just because the	1865	* (~slow_move) is not blocked on this space - just because the
1891	* space doesn't slow down swimming (for example), if you can't actually	1866	* space doesn't slow down swimming (for example), if you can't actually
1892	* swim on that space, can't use it to avoid the penalty.	1867	* swim on that space, can't use it to avoid the penalty.
1893	*/	1868	*/
1894	if (!QUERY_FLAG (op, FLAG_WIZPASS))	1869	if (!op->flag [FLAG_WIZPASS])
1895	{	1870	{
1896	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||	1871	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||
1897	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))	1872	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))
1898	{	1873	{
1899
1900	float
1901	diff = tmp->move_slow_penalty * FABS (op->speed);	1874	float diff = tmp->move_slow_penalty * fabs (op->speed);
1902		1875
1903	if (op->type == PLAYER)	1876	if (op->is_player ())
1904	if ((QUERY_FLAG (tmp, FLAG_IS_HILLY) && find_skill_by_number (op, SK_CLIMBING)) ||	1877	if ((tmp->flag [FLAG_IS_HILLY ] && find_skill_by_number (op, SK_CLIMBING)) ||
1905	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))	1878	(tmp->flag [FLAG_IS_WOODED] && find_skill_by_number (op, SK_WOODSMAN)))
1906	diff /= 4.0;	1879	diff /= 4.0;
1907		1880
1908	op->speed_left -= diff;	1881	op->speed_left -= diff;
1909	}	1882	}
1910	}	1883	}
…		…
1933	/*	1906	/*
1934	* present_arch(arch, map, x, y) searches for any objects with	1907	* present_arch(arch, map, x, y) searches for any objects with
1935	* a matching archetype at the given map and coordinates.	1908	* a matching archetype at the given map and coordinates.
1936	* The first matching object is returned, or NULL if none.	1909	* The first matching object is returned, or NULL if none.
1937	*/	1910	*/
1938
1939	object *	1911	object *
1940	present_arch (const archetype *at, maptile *m, int x, int y)	1912	present_arch (const archetype *at, maptile *m, int x, int y)
1941	{	1913	{
1942	object *
1943	tmp;
1944
1945	if (m == NULL || out_of_map (m, x, y))	1914	if (!m || out_of_map (m, x, y))
1946	{	1915	{
1947	LOG (llevError, "Present_arch called outside map.\n");	1916	LOG (llevError, "Present_arch called outside map.\n");
1948	return NULL;	1917	return NULL;
1949	}	1918	}
1950	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)	1919
1951	if (tmp->arch == at)	1920	for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)
		1921	if (tmp->arch->archname == at->archname)
1952	return tmp;	1922	return tmp;
		1923
1953	return NULL;	1924	return NULL;
1954	}	1925	}
1955		1926
1956	/*	1927	/*
1957	* present(type, map, x, y) searches for any objects with	1928	* present(type, map, x, y) searches for any objects with
1958	* a matching type variable at the given map and coordinates.	1929	* a matching type variable at the given map and coordinates.
1959	* The first matching object is returned, or NULL if none.	1930	* The first matching object is returned, or NULL if none.
1960	*/	1931	*/
1961
1962	object *	1932	object *
1963	present (unsigned char type, maptile *m, int x, int y)	1933	present (unsigned char type, maptile *m, int x, int y)
1964	{	1934	{
1965	object *
1966	tmp;
1967
1968	if (out_of_map (m, x, y))	1935	if (out_of_map (m, x, y))
1969	{	1936	{
1970	LOG (llevError, "Present called outside map.\n");	1937	LOG (llevError, "Present called outside map.\n");
1971	return NULL;	1938	return NULL;
1972	}	1939	}
1973	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)	1940
		1941	for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)
1974	if (tmp->type == type)	1942	if (tmp->type == type)
1975	return tmp;	1943	return tmp;
		1944
1976	return NULL;	1945	return NULL;
1977	}	1946	}
1978		1947
1979	/*	1948	/*
1980	* present_in_ob(type, object) searches for any objects with	1949	* present_in_ob(type, object) searches for any objects with
1981	* a matching type variable in the inventory of the given object.	1950	* a matching type variable in the inventory of the given object.
1982	* The first matching object is returned, or NULL if none.	1951	* The first matching object is returned, or NULL if none.
1983	*/	1952	*/
1984
1985	object *	1953	object *
1986	present_in_ob (unsigned char type, const object *op)	1954	present_in_ob (unsigned char type, const object *op)
1987	{	1955	{
1988	object *
1989	tmp;
1990
1991	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1956	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
1992	if (tmp->type == type)	1957	if (tmp->type == type)
1993	return tmp;	1958	return tmp;
		1959
1994	return NULL;	1960	return NULL;
1995	}	1961	}
1996		1962
1997	/*	1963	/*
1998	* present_in_ob (type, str, object) searches for any objects with	1964	* present_in_ob (type, str, object) searches for any objects with
…		…
2006	* str is the string to match against. Note that we match against	1972	* str is the string to match against. Note that we match against
2007	* the object name, not the archetype name. this is so that the	1973	* the object name, not the archetype name. this is so that the
2008	* spell code can use one object type (force), but change it's name	1974	* spell code can use one object type (force), but change it's name
2009	* to be unique.	1975	* to be unique.
2010	*/	1976	*/
2011
2012	object *	1977	object *
2013	present_in_ob_by_name (int type, const char *str, const object *op)	1978	present_in_ob_by_name (int type, const char *str, const object *op)
2014	{	1979	{
2015	object *
2016	tmp;
2017
2018	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1980	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2019	{
2020	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))	1981	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))
2021	return tmp;	1982	return tmp;
2022	}	1983
2023	return NULL;	1984	return 0;
2024	}	1985	}
2025		1986
2026	/*	1987	/*
2027	* present_arch_in_ob(archetype, object) searches for any objects with	1988	* present_arch_in_ob(archetype, object) searches for any objects with
2028	* a matching archetype in the inventory of the given object.	1989	* a matching archetype in the inventory of the given object.
2029	* The first matching object is returned, or NULL if none.	1990	* The first matching object is returned, or NULL if none.
2030	*/	1991	*/
2031
2032	object *	1992	object *
2033	present_arch_in_ob (const archetype *at, const object *op)	1993	present_arch_in_ob (const archetype *at, const object *op)
2034	{	1994	{
2035	object *
2036	tmp;
2037
2038	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1995	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2039	if (tmp->arch == at)	1996	if (tmp->arch->archname == at->archname)
2040	return tmp;	1997	return tmp;
		1998
2041	return NULL;	1999	return NULL;
2042	}	2000	}
2043		2001
2044	/*	2002	/*
2045	* activate recursively a flag on an object inventory	2003	* activate recursively a flag on an object inventory
2046	*/	2004	*/
2047	void	2005	void
2048	flag_inv (object *op, int flag)	2006	flag_inv (object *op, int flag)
2049	{	2007	{
2050	object *
2051	tmp;
2052
2053	if (op->inv)
2054	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	2008	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2055	{	2009	{
2056	SET_FLAG (tmp, flag);	2010	tmp->set_flag (flag);
2057	flag_inv (tmp, flag);	2011	flag_inv (tmp, flag);
2058	}	2012	}
2059	} /*	2013	}
		2014
		2015	/*
2060	* desactivate recursively a flag on an object inventory	2016	* deactivate recursively a flag on an object inventory
2061	*/	2017	*/
2062	void	2018	void
2063	unflag_inv (object *op, int flag)	2019	unflag_inv (object *op, int flag)
2064	{	2020	{
2065	object *
2066	tmp;
2067
2068	if (op->inv)
2069	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	2021	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2070	{	2022	{
2071	CLEAR_FLAG (tmp, flag);	2023	tmp->clr_flag (flag);
2072	unflag_inv (tmp, flag);	2024	unflag_inv (tmp, flag);
2073	}	2025	}
2074	}
2075
2076	/*
2077	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in
2078	* all it's inventory (recursively).
2079	* If checksums are used, a player will get set_cheat called for
2080	* him/her-self and all object carried by a call to this function.
2081	*/
2082
2083	void
2084	set_cheat (object *op)
2085	{
2086	SET_FLAG (op, FLAG_WAS_WIZ);
2087	flag_inv (op, FLAG_WAS_WIZ);
2088	}	2026	}
2089		2027
2090	/*	2028	/*
2091	* find_free_spot(object, map, x, y, start, stop) will search for	2029	* find_free_spot(object, map, x, y, start, stop) will search for
2092	* a spot at the given map and coordinates which will be able to contain	2030	* a spot at the given map and coordinates which will be able to contain
…		…
2094	* to search (see the freearr_x/y[] definition).	2032	* to search (see the freearr_x/y[] definition).
2095	* It returns a random choice among the alternatives found.	2033	* It returns a random choice among the alternatives found.
2096	* start and stop are where to start relative to the free_arr array (1,9	2034	* start and stop are where to start relative to the free_arr array (1,9
2097	* does all 4 immediate directions). This returns the index into the	2035	* does all 4 immediate directions). This returns the index into the
2098	* array of the free spot, -1 if no spot available (dir 0 = x,y)	2036	* array of the free spot, -1 if no spot available (dir 0 = x,y)
2099	* Note - this only checks to see if there is space for the head of the
2100	* object - if it is a multispace object, this should be called for all
2101	* pieces.
2102	* Note2: This function does correctly handle tiled maps, but does not	2037	* Note: This function does correctly handle tiled maps, but does not
2103	* inform the caller. However, insert_ob_in_map will update as	2038	* inform the caller. However, insert_ob_in_map will update as
2104	* necessary, so the caller shouldn't need to do any special work.	2039	* necessary, so the caller shouldn't need to do any special work.
2105	* Note - updated to take an object instead of archetype - this is necessary	2040	* Note - updated to take an object instead of archetype - this is necessary
2106	* because arch_blocked (now ob_blocked) needs to know the movement type	2041	* because arch_blocked (now ob_blocked) needs to know the movement type
2107	* to know if the space in question will block the object. We can't use	2042	* to know if the space in question will block the object. We can't use
2108	* the archetype because that isn't correct if the monster has been	2043	* the archetype because that isn't correct if the monster has been
2109	* customized, changed states, etc.	2044	* customized, changed states, etc.
2110	*/	2045	*/
2111
2112	int	2046	int
2113	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)	2047	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)
2114	{	2048	{
2115	int
2116	i,
2117	index = 0, flag;
2118	static int
2119	altern[SIZEOFFREE];	2049	int altern[SIZEOFFREE];
		2050	int index = 0, flag;
2120		2051
2121	for (i = start; i < stop; i++)	2052	for (int i = start; i < stop; i++)
2122	{	2053	{
2123	flag = ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]);	2054	mapxy pos (m, x, y); pos.move (i);
2124	if (!flag)	2055
		2056	if (!pos.normalise ())
		2057	continue;
		2058
		2059	mapspace &ms = *pos;
		2060
		2061	if (ms.flags () & P_IS_ALIVE)
		2062	continue;
		2063
		2064	/* However, often
		2065	* ob doesn't have any move type (when used to place exits)
		2066	* so the AND operation in OB_TYPE_MOVE_BLOCK doesn't work.
		2067	*/
		2068	if (ob && ob->move_type == 0 && ms.move_block != MOVE_ALL)
		2069	{
2125	altern[index++] = i;	2070	altern [index++] = i;
		2071	continue;
		2072	}
2126		2073
2127	/* Basically, if we find a wall on a space, we cut down the search size.	2074	/* Basically, if we find a wall on a space, we cut down the search size.
2128	* In this way, we won't return spaces that are on another side of a wall.	2075	* In this way, we won't return spaces that are on another side of a wall.
2129	* This mostly work, but it cuts down the search size in all directions -	2076	* This mostly work, but it cuts down the search size in all directions -
2130	* if the space being examined only has a wall to the north and empty	2077	* if the space being examined only has a wall to the north and empty
2131	* spaces in all the other directions, this will reduce the search space	2078	* spaces in all the other directions, this will reduce the search space
2132	* to only the spaces immediately surrounding the target area, and	2079	* to only the spaces immediately surrounding the target area, and
2133	* won't look 2 spaces south of the target space.	2080	* won't look 2 spaces south of the target space.
2134	*/	2081	*/
2135	else if ((flag & AB_NO_PASS) && maxfree[i] < stop)	2082	if (ms.move_block == MOVE_ALL && maxfree[i] < stop)
		2083	{
2136	stop = maxfree[i];	2084	stop = maxfree[i];
		2085	continue;
		2086	}
		2087
		2088	/* Note it is intentional that we check ob - the movement type of the
		2089	* head of the object should correspond for the entire object.
		2090	*/
		2091	if (OB_TYPE_MOVE_BLOCK (ob, ms.move_block))
		2092	continue;
		2093
		2094	if (ob->blocked (pos.m, pos.x, pos.y))
		2095	continue;
		2096
		2097	altern [index++] = i;
2137	}	2098	}
		2099
2138	if (!index)	2100	if (!index)
2139	return -1;	2101	return -1;
		2102
2140	return altern[RANDOM () % index];	2103	return altern [rndm (index)];
2141	}	2104	}
2142		2105
2143	/*	2106	/*
2144	* find_first_free_spot(archetype, maptile, x, y) works like	2107	* find_first_free_spot(archetype, maptile, x, y) works like
2145	* find_free_spot(), but it will search max number of squares.	2108	* find_free_spot(), but it will search max number of squares.
2146	* But it will return the first available spot, not a random choice.	2109	* But it will return the first available spot, not a random choice.
2147	* Changed 0.93.2: Have it return -1 if there is no free spot available.	2110	* Changed 0.93.2: Have it return -1 if there is no free spot available.
2148	*/	2111	*/
2149
2150	int	2112	int
2151	find_first_free_spot (const object *ob, maptile *m, int x, int y)	2113	find_first_free_spot (const object *ob, maptile *m, int x, int y)
2152	{	2114	{
2153	int
2154	i;
2155
2156	for (i = 0; i < SIZEOFFREE; i++)	2115	for (int i = 0; i < SIZEOFFREE; i++)
2157	{
2158	if (!ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]))	2116	if (!ob->blocked (m, x + freearr_x[i], y + freearr_y[i]))
2159	return i;	2117	return i;
2160	}	2118
2161	return -1;	2119	return -1;
2162	}	2120	}
2163		2121
2164	/*	2122	/*
2165	* The function permute(arr, begin, end) randomly reorders the array	2123	* The function permute(arr, begin, end) randomly reorders the array
2166	* arr[begin..end-1].	2124	* arr[begin..end-1].
		2125	* now uses a fisher-yates shuffle, old permute was broken
2167	*/	2126	*/
2168	static void	2127	static void
2169	permute (int *arr, int begin, int end)	2128	permute (int *arr, int begin, int end)
2170	{	2129	{
2171	int	2130	arr += begin;
2172	i,
2173	j,
2174	tmp,
2175	len;
2176
2177	len = end - begin;	2131	end -= begin;
2178	for (i = begin; i < end; i++)
2179	{
2180	j = begin + RANDOM () % len;
2181		2132
2182	tmp = arr[i];	2133	while (--end)
2183	arr[i] = arr[j];	2134	swap (arr [end], arr [rndm (end + 1)]);
2184	arr[j] = tmp;
2185	}
2186	}	2135	}
2187		2136
2188	/* new function to make monster searching more efficient, and effective!	2137	/* new function to make monster searching more efficient, and effective!
2189	* This basically returns a randomized array (in the passed pointer) of	2138	* This basically returns a randomized array (in the passed pointer) of
2190	* the spaces to find monsters. In this way, it won't always look for	2139	* the spaces to find monsters. In this way, it won't always look for
…		…
2193	* the 3x3 area will be searched, just not in a predictable order.	2142	* the 3x3 area will be searched, just not in a predictable order.
2194	*/	2143	*/
2195	void	2144	void
2196	get_search_arr (int *search_arr)	2145	get_search_arr (int *search_arr)
2197	{	2146	{
2198	int	2147	int i;
2199	i;
2200		2148
2201	for (i = 0; i < SIZEOFFREE; i++)	2149	for (i = 0; i < SIZEOFFREE; i++)
2202	{
2203	search_arr[i] = i;	2150	search_arr[i] = i;
2204	}
2205		2151
2206	permute (search_arr, 1, SIZEOFFREE1 + 1);	2152	permute (search_arr, 1, SIZEOFFREE1 + 1);
2207	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);	2153	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);
2208	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);	2154	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);
2209	}	2155	}
…		…
2218	* Perhaps incorrectly, but I'm making the assumption that exclude	2164	* Perhaps incorrectly, but I'm making the assumption that exclude
2219	* is actually want is going to try and move there. We need this info	2165	* is actually want is going to try and move there. We need this info
2220	* because we have to know what movement the thing looking to move	2166	* because we have to know what movement the thing looking to move
2221	* there is capable of.	2167	* there is capable of.
2222	*/	2168	*/
2223
2224	int	2169	int
2225	find_dir (maptile *m, int x, int y, object *exclude)	2170	find_dir (maptile *m, int x, int y, object *exclude)
2226	{	2171	{
2227	int
2228	i,
2229	max = SIZEOFFREE, mflags;	2172	int max = SIZEOFFREE, mflags;
2230
2231	sint16 nx, ny;
2232	object *
2233	tmp;
2234	maptile *
2235	mp;
2236
2237	MoveType blocked, move_type;	2173	MoveType move_type;
2238		2174
2239	if (exclude && exclude->head)	2175	if (exclude && exclude->head_ () != exclude)
2240	{	2176	{
2241	exclude = exclude->head;	2177	exclude = exclude->head;
2242	move_type = exclude->move_type;	2178	move_type = exclude->move_type;
2243	}	2179	}
2244	else	2180	else
2245	{	2181	{
2246	/* If we don't have anything, presume it can use all movement types. */	2182	/* If we don't have anything, presume it can use all movement types. */
2247	move_type = MOVE_ALL;	2183	move_type = MOVE_ALL;
2248	}	2184	}
2249		2185
2250	for (i = 1; i < max; i++)	2186	for (int i = 1; i < max; i++)
2251	{	2187	{
2252	mp = m;	2188	mapxy pos (m, x, y);
2253	nx = x + freearr_x[i];	2189	pos.move (i);
2254	ny = y + freearr_y[i];
2255		2190
2256	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);	2191	if (!pos.normalise ())
2257	if (mflags & P_OUT_OF_MAP)
2258	{
2259	max = maxfree[i];	2192	max = maxfree[i];
2260	}
2261	else	2193	else
2262	{	2194	{
2263	blocked = GET_MAP_MOVE_BLOCK (mp, nx, ny);	2195	mapspace &ms = *pos;
2264		2196
2265	if ((move_type & blocked) == move_type)	2197	if ((move_type & ms.move_block) == move_type)
		2198	max = maxfree [i];
		2199	else if (ms.flags () & P_IS_ALIVE)
2266	{	2200	{
2267	max = maxfree[i];	2201	for (object *tmp = ms.bot; tmp; tmp = tmp->above)
2268	}	2202	if ((tmp->flag [FLAG_MONSTER] || tmp->is_player ())
2269	else if (mflags & P_IS_ALIVE)	2203	&& (tmp != exclude || (tmp->head_ () != tmp && tmp->head_ () != exclude)))
2270	{
2271	for (tmp = GET_MAP_OB (mp, nx, ny); tmp != NULL; tmp = tmp->above)
2272	{
2273	if ((QUERY_FLAG (tmp, FLAG_MONSTER) || tmp->type == PLAYER) && (tmp != exclude || (tmp->head && tmp->head != exclude)))
2274	{
2275	break;
2276	}
2277	}
2278	if (tmp)
2279	{
2280	return freedir[i];	2204	return freedir [i];
2281	}
2282	}	2205	}
2283	}	2206	}
2284	}	2207	}
		2208
2285	return 0;	2209	return 0;
2286	}	2210	}
2287		2211
2288	/*	2212	/*
2289	* distance(object 1, object 2) will return the square of the	2213	* distance(object 1, object 2) will return the square of the
2290	* distance between the two given objects.	2214	* distance between the two given objects.
2291	*/	2215	*/
2292
2293	int	2216	int
2294	distance (const object *ob1, const object *ob2)	2217	distance (const object *ob1, const object *ob2)
2295	{	2218	{
2296	int
2297	i;
2298
2299	i = (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);	2219	return (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);
2300	return i;
2301	}	2220	}
2302		2221
2303	/*	2222	/*
2304	* find_dir_2(delta-x,delta-y) will return a direction in which	2223	* find_dir_2(delta-x,delta-y) will return a direction value
2305	* an object which has subtracted the x and y coordinates of another	2224	* for running into direct [dx, dy].
2306	* object, needs to travel toward it.	2225	* (the opposite of crossfire's find_dir_2!)
2307	*/	2226	*/
2308
2309	int	2227	int
2310	find_dir_2 (int x, int y)	2228	find_dir_2 (int x, int y)
2311	{	2229	{
		2230	#if 1 // new algorithm
		2231	// this works by putting x, y into 16 sectors, which
		2232	// are not equal sized, but are a better approximation
		2233	// then the old algorithm, and then using a mapping
		2234	// table to map it into a direction value.
		2235	// basically, it maps these comparisons to each bit
		2236	// bit #3: x < 0
		2237	// bit #2: y < 0
		2238	// bit #1: x > y
		2239	// bit #0: x > 2y
		2240
		2241	static const uint8 dir[16] = {
		2242	4, 5, 4, 3,
		2243	2, 1, 2, 3,
		2244	6, 5, 6, 7,
		2245	8, 1, 8, 7,
		2246	};
		2247	int sector = 0;
		2248
		2249	// this is a bit ugly, but more likely to result in branchless code
		2250	sector |= x < 0 ? 8 : 0;
		2251	x = x < 0 ? -x : x; // abs
		2252
		2253	sector |= y < 0 ? 4 : 0;
		2254	y = y < 0 ? -y : y; // abs
		2255
		2256	if (x > y)
		2257	{
		2258	sector |= 2;
		2259
		2260	if (x > y * 2)
		2261	sector |= 1;
		2262	}
		2263	else
		2264	{
		2265	if (y > x * 2)
		2266	sector |= 1;
		2267	else if (!y)
		2268	return 0; // x == 0 here
		2269	}
		2270
		2271	return dir [sector];
		2272	#else // old algorithm
2312	int	2273	int q;
2313	q;
2314		2274
2315	if (y)	2275	if (y)
2316	q = x * 100 / y;	2276	q = 128 * x / y;
2317	else if (x)	2277	else if (x)
2318	q = -300 * x;	2278	q = -512 * x; // to make it > 309
2319	else	2279	else
2320	return 0;	2280	return 0;
2321		2281
2322	if (y > 0)	2282	if (y > 0)
2323	{	2283	{
2324	if (q < -242)	2284	if (q < -309) return 7;
		2285	if (q < -52) return 6;
		2286	if (q < 52) return 5;
		2287	if (q < 309) return 4;
		2288
2325	return 3;	2289	return 3;
2326	if (q < -41)	2290	}
2327	return 2;	2291	else
2328	if (q < 41)	2292	{
2329	return 1;	2293	if (q < -309) return 3;
2330	if (q < 242)	2294	if (q < -52) return 2;
2331	return 8;	2295	if (q < 52) return 1;
		2296	if (q < 309) return 8;
		2297
2332	return 7;	2298	return 7;
2333	}	2299	}
2334		2300	#endif
2335	if (q < -242)
2336	return 7;
2337	if (q < -41)
2338	return 6;
2339	if (q < 41)
2340	return 5;
2341	if (q < 242)
2342	return 4;
2343
2344	return 3;
2345	}
2346
2347	/*
2348	* absdir(int): Returns a number between 1 and 8, which represent
2349	* the "absolute" direction of a number (it actually takes care of
2350	* "overflow" in previous calculations of a direction).
2351	*/
2352
2353	int
2354	absdir (int d)
2355	{
2356	while (d < 1)
2357	d += 8;
2358	while (d > 8)
2359	d -= 8;
2360	return d;
2361	}	2301	}
2362		2302
2363	/*	2303	/*
2364	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is	2304	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is
2365	* between two directions (which are expected to be absolute (see absdir())	2305	* between two directions (which are expected to be absolute (see absdir())
2366	*/	2306	*/
2367
2368	int	2307	int
2369	dirdiff (int dir1, int dir2)	2308	dirdiff (int dir1, int dir2)
2370	{	2309	{
2371	int
2372	d;
2373
2374	d = abs (dir1 - dir2);	2310	int d = abs (dir1 - dir2);
2375	if (d > 4)	2311
2376	d = 8 - d;	2312	return d > 4 ? 8 - d : d;
2377	return d;
2378	}	2313	}
2379		2314
2380	/* peterm:	2315	/* peterm:
2381	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.	2316	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.
2382	* Basically, this is a table of directions, and what directions	2317	* Basically, this is a table of directions, and what directions
…		…
2384	* This basically means that if direction is 15, then it could either go	2319	* This basically means that if direction is 15, then it could either go
2385	* direction 4, 14, or 16 to get back to where we are.	2320	* direction 4, 14, or 16 to get back to where we are.
2386	* Moved from spell_util.c to object.c with the other related direction	2321	* Moved from spell_util.c to object.c with the other related direction
2387	* functions.	2322	* functions.
2388	*/	2323	*/
2389
2390	int
2391	reduction_dir[SIZEOFFREE][3] = {	2324	static const int reduction_dir[SIZEOFFREE][3] = {
2392	{0, 0, 0}, /* 0 */	2325	{0, 0, 0}, /* 0 */
2393	{0, 0, 0}, /* 1 */	2326	{0, 0, 0}, /* 1 */
2394	{0, 0, 0}, /* 2 */	2327	{0, 0, 0}, /* 2 */
2395	{0, 0, 0}, /* 3 */	2328	{0, 0, 0}, /* 3 */
2396	{0, 0, 0}, /* 4 */	2329	{0, 0, 0}, /* 4 */
…		…
2444	* find a path to that monster that we found. If not,	2377	* find a path to that monster that we found. If not,
2445	* we don't bother going toward it. Returns 1 if we	2378	* we don't bother going toward it. Returns 1 if we
2446	* can see a direct way to get it	2379	* can see a direct way to get it
2447	* Modified to be map tile aware -.MSW	2380	* Modified to be map tile aware -.MSW
2448	*/	2381	*/
2449
2450
2451	int	2382	int
2452	can_see_monsterP (maptile *m, int x, int y, int dir)	2383	can_see_monsterP (maptile *m, int x, int y, int dir)
2453	{	2384	{
2454	sint16 dx, dy;	2385	sint16 dx, dy;
2455	int
2456	mflags;	2386	int mflags;
2457		2387
2458	if (dir < 0)	2388	if (dir < 0)
2459	return 0; /* exit condition: invalid direction */	2389	return 0; /* exit condition: invalid direction */
2460		2390
2461	dx = x + freearr_x[dir];	2391	dx = x + freearr_x[dir];
…		…
2474	return 0;	2404	return 0;
2475		2405
2476	/* yes, can see. */	2406	/* yes, can see. */
2477	if (dir < 9)	2407	if (dir < 9)
2478	return 1;	2408	return 1;
		2409
2479	return can_see_monsterP (m, x, y, reduction_dir[dir][0]) |	2410	return can_see_monsterP (m, x, y, reduction_dir[dir][0])
2480	can_see_monsterP (m, x, y, reduction_dir[dir][1]) | can_see_monsterP (m, x, y, reduction_dir[dir][2]);	2411	| can_see_monsterP (m, x, y, reduction_dir[dir][1])
		2412	| can_see_monsterP (m, x, y, reduction_dir[dir][2]);
2481	}	2413	}
2482
2483
2484		2414
2485	/*	2415	/*
2486	* can_pick(picker, item): finds out if an object is possible to be	2416	* can_pick(picker, item): finds out if an object is possible to be
2487	* picked up by the picker. Returnes 1 if it can be	2417	* picked up by the picker. Returnes 1 if it can be
2488	* picked up, otherwise 0.	2418	* picked up, otherwise 0.
…		…
2490	* Cf 0.91.3 - don't let WIZ's pick up anything - will likely cause	2420	* Cf 0.91.3 - don't let WIZ's pick up anything - will likely cause
2491	* core dumps if they do.	2421	* core dumps if they do.
2492	*	2422	*
2493	* Add a check so we can't pick up invisible objects (0.93.8)	2423	* Add a check so we can't pick up invisible objects (0.93.8)
2494	*/	2424	*/
2495
2496	int	2425	int
2497	can_pick (const object *who, const object *item)	2426	can_pick (const object *who, const object *item)
2498	{	2427	{
2499	return /*QUERY_FLAG(who,FLAG_WIZ)|| */	2428	return /*who->flag [FLAG_WIZ]|| */
2500	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&	2429	(item->weight > 0 && !item->flag [FLAG_NO_PICK] &&
2501	!QUERY_FLAG (item, FLAG_ALIVE) && !item->invisible && (who->type == PLAYER || item->weight < who->weight / 3));	2430	!item->flag [FLAG_ALIVE] && !item->invisible && (who->is_player () || item->weight < who->weight / 3));
2502	}	2431	}
2503
2504		2432
2505	/*	2433	/*
2506	* create clone from object to another	2434	* create clone from object to another
2507	*/	2435	*/
2508	object *	2436	object *
2509	object_create_clone (object *asrc)	2437	object::deep_clone ()
2510	{	2438	{
2511	object *dst = 0, *tmp, *src, *part, *prev, *item;	2439	assert (("deep_clone called on non-head object", is_head ()));
2512		2440
2513	if (!asrc)	2441	object *dst = clone ();
2514	return 0;
2515		2442
2516	src = asrc;	2443	object *prev = dst;
2517	if (src->head)
2518	src = src->head;
2519
2520	prev = 0;
2521	for (part = src; part; part = part->more)	2444	for (object *part = this->more; part; part = part->more)
2522	{	2445	{
2523	tmp = object::create ();	2446	object *tmp = part->clone ();
2524	part->copy_to (tmp);
2525	tmp->x -= src->x;
2526	tmp->y -= src->y;
2527
2528	if (!part->head)
2529	{
2530	dst = tmp;
2531	tmp->head = 0;
2532	}
2533	else
2534	{
2535	tmp->head = dst;	2447	tmp->head = dst;
2536	}
2537
2538	tmp->more = 0;
2539
2540	if (prev)
2541	prev->more = tmp;	2448	prev->more = tmp;
2542
2543	prev = tmp;	2449	prev = tmp;
2544	}	2450	}
2545		2451
2546	for (item = src->inv; item; item = item->below)	2452	for (object *item = inv; item; item = item->below)
2547	insert_ob_in_ob (object_create_clone (item), dst);	2453	insert_ob_in_ob (item->deep_clone (), dst);
2548		2454
2549	return dst;	2455	return dst;
2550	}
2551
2552	/* GROS - Creates an object using a string representing its content. */
2553	/* Basically, we save the content of the string to a temp file, then call */
2554	/* load_object on it. I admit it is a highly inefficient way to make things, */
2555	/* but it was simple to make and allows reusing the load_object function. */
2556	/* Remember not to use load_object_str in a time-critical situation. */
2557	/* Also remember that multiparts objects are not supported for now. */
2558
2559	object *
2560	load_object_str (const char *obstr)
2561	{
2562	object *op;
2563	char filename[MAX_BUF];
2564
2565	sprintf (filename, "%s/cfloadobstr2044", settings.tmpdir);
2566
2567	FILE *tempfile = fopen (filename, "w");
2568
2569	if (tempfile == NULL)
2570	{
2571	LOG (llevError, "Error - Unable to access load object temp file\n");
2572	return NULL;
2573	}
2574
2575	fprintf (tempfile, obstr);
2576	fclose (tempfile);
2577
2578	op = object::create ();
2579
2580	object_thawer thawer (filename);
2581
2582	if (thawer)
2583	load_object (thawer, op, 0);
2584
2585	LOG (llevDebug, " load str completed, object=%s\n", &op->name);
2586	CLEAR_FLAG (op, FLAG_REMOVED);
2587
2588	return op;
2589	}	2456	}
2590		2457
2591	/* This returns the first object in who's inventory that	2458	/* This returns the first object in who's inventory that
2592	* has the same type and subtype match.	2459	* has the same type and subtype match.
2593	* returns NULL if no match.	2460	* returns NULL if no match.
2594	*/	2461	*/
2595	object *	2462	object *
2596	find_obj_by_type_subtype (const object *who, int type, int subtype)	2463	find_obj_by_type_subtype (const object *who, int type, int subtype)
2597	{	2464	{
2598	object *tmp;
2599
2600	for (tmp = who->inv; tmp; tmp = tmp->below)	2465	for (object *tmp = who->inv; tmp; tmp = tmp->below)
2601	if (tmp->type == type && tmp->subtype == subtype)	2466	if (tmp->type == type && tmp->subtype == subtype)
2602	return tmp;	2467	return tmp;
2603		2468
2604	return NULL;
2605	}
2606
2607	/* If ob has a field named key, return the link from the list,
2608	* otherwise return NULL.
2609	*
2610	* key must be a passed in shared string - otherwise, this won't
2611	* do the desired thing.
2612	*/
2613	key_value *
2614	get_ob_key_link (const object *ob, const char *key)
2615	{
2616	key_value *link;
2617
2618	for (link = ob->key_values; link != NULL; link = link->next)
2619	if (link->key == key)
2620	return link;
2621
2622	return NULL;
2623	}
2624
2625	/*
2626	* Returns the value of op has an extra_field for key, or NULL.
2627	*
2628	* The argument doesn't need to be a shared string.
2629	*
2630	* The returned string is shared.
2631	*/
2632	const char *
2633	get_ob_key_value (const object *op, const char *const key)
2634	{
2635	key_value *link;
2636	shstr_cmp canonical_key (key);
2637
2638	if (!canonical_key)
2639	{
2640	/* 1. There being a field named key on any object
2641	* implies there'd be a shared string to find.
2642	* 2. Since there isn't, no object has this field.
2643	* 3. Therefore, *this* object doesn't have this field.
2644	*/
2645	return 0;
2646	}
2647
2648	/* This is copied from get_ob_key_link() above -
2649	* only 4 lines, and saves the function call overhead.
2650	*/
2651	for (link = op->key_values; link; link = link->next)
2652	if (link->key == canonical_key)
2653	return link->value;
2654
2655	return 0;	2469	return 0;
2656	}	2470	}
2657		2471
2658		2472	shstr_tmp
2659	/*	2473	object::kv_get (shstr_tmp key) const
2660	* Updates the canonical_key in op to value.
2661	*
2662	* canonical_key is a shared string (value doesn't have to be).
2663	*
2664	* Unless add_key is TRUE, it won't add fields, only change the value of existing
2665	* keys.
2666	*
2667	* Returns TRUE on success.
2668	*/
2669	int
2670	set_ob_key_value_s (object *op, const shstr & canonical_key, const char *value, int add_key)
2671	{	2474	{
2672	key_value *	2475	for (key_value *kv = key_values; kv; kv = kv->next)
2673	field = NULL, *last = NULL;	2476	if (kv->key == key)
		2477	return kv->value;
2674		2478
2675	for (field = op->key_values; field != NULL; field = field->next)	2479	return shstr ();
2676	{	2480	}
2677	if (field->key != canonical_key)	2481
		2482	void
		2483	object::kv_set (shstr_tmp key, shstr_tmp value)
		2484	{
		2485	for (key_value *kv = key_values; kv; kv = kv->next)
		2486	if (kv->key == key)
2678	{	2487	{
2679	last = field;	2488	kv->value = value;
2680	continue;	2489	return;
2681	}	2490	}
2682		2491
2683	if (value)	2492	key_value *kv = new key_value;
2684	field->value = value;	2493
2685	else	2494	kv->next = key_values;
		2495	kv->key = key;
		2496	kv->value = value;
		2497
		2498	key_values = kv;
		2499	}
		2500
		2501	void
		2502	object::kv_del (shstr_tmp key)
		2503	{
		2504	for (key_value **kvp = &key_values; *kvp; kvp = &(*kvp)->next)
		2505	if ((*kvp)->key == key)
2686	{	2506	{
2687	/* Basically, if the archetype has this key set,	2507	key_value *kv = *kvp;
2688	* we need to store the null value so when we save	2508	*kvp = (*kvp)->next;
2689	* it, we save the empty value so that when we load,	2509	delete kv;
2690	* we get this value back again.	2510	return;
2691	*/
2692	if (get_ob_key_link (&op->arch->clone, canonical_key))
2693	field->value = 0;
2694	else
2695	{
2696	if (last)
2697	last->next = field->next;
2698	else
2699	op->key_values = field->next;
2700
2701	delete field;
2702	}
2703	}	2511	}
2704	return TRUE;
2705	}
2706	/* IF we get here, key doesn't exist */
2707
2708	/* No field, we'll have to add it. */
2709
2710	if (!add_key)
2711	{
2712	return FALSE;
2713	}
2714	/* There isn't any good reason to store a null
2715	* value in the key/value list. If the archetype has
2716	* this key, then we should also have it, so shouldn't
2717	* be here. If user wants to store empty strings,
2718	* should pass in ""
2719	*/
2720	if (value == NULL)
2721	return TRUE;
2722
2723	field = new key_value;
2724
2725	field->key = canonical_key;
2726	field->value = value;
2727	/* Usual prepend-addition. */
2728	field->next = op->key_values;
2729	op->key_values = field;
2730
2731	return TRUE;
2732	}
2733
2734	/*
2735	* Updates the key in op to value.
2736	*
2737	* If add_key is FALSE, this will only update existing keys,
2738	* and not add new ones.
2739	* In general, should be little reason FALSE is ever passed in for add_key
2740	*
2741	* Returns TRUE on success.
2742	*/
2743	int
2744	set_ob_key_value (object *op, const char *key, const char *value, int add_key)
2745	{
2746	shstr key_ (key);
2747
2748	return set_ob_key_value_s (op, key_, value, add_key);
2749	}	2512	}
2750		2513
2751	object::depth_iterator::depth_iterator (object *container)	2514	object::depth_iterator::depth_iterator (object *container)
2752	: iterator_base (container)	2515	: iterator_base (container)
2753	{	2516	{
…		…
2767	}	2530	}
2768	else	2531	else
2769	item = item->env;	2532	item = item->env;
2770	}	2533	}
2771		2534
		2535	const char *
		2536	object::flag_desc (char *desc, int len) const
		2537	{
		2538	char *p = desc;
		2539	bool first = true;
		2540
		2541	*p = 0;
		2542
		2543	for (int i = 0; i < NUM_FLAGS; i++)
		2544	{
		2545	if (len <= 10) // magic constant!
		2546	{
		2547	snprintf (p, len, ",...");
		2548	break;
		2549	}
		2550
		2551	if (flag [i])
		2552	{
		2553	int cnt = snprintf (p, len, "%s%d", first ? "" : ",", i);
		2554	len -= cnt;
		2555	p += cnt;
		2556	first = false;
		2557	}
		2558	}
		2559
		2560	return desc;
		2561	}
		2562
2772	// return a suitable string describing an objetc in enough detail to find it	2563	// return a suitable string describing an object in enough detail to find it
2773	const char *	2564	const char *
2774	object::debug_desc (char *info) const	2565	object::debug_desc (char *info) const
2775	{	2566	{
		2567	char flagdesc[512];
2776	char info2[256 * 3];	2568	char info2[256 * 4];
2777	char *p = info;	2569	char *p = info;
2778		2570
2779	p += snprintf (p, 256, "%d=\"%s%s%s\"",	2571	p += snprintf (p, 512, "{cnt:%d,uuid:%s,name:\"%s\"%s%s%s,flags:[%s],type:%d}",
2780	count,	2572	count,
		2573	uuid.c_str (),
2781	&name,	2574	&name,
2782	title ? " " : "",	2575	title ? ",title:\"" : "",
2783	title ? (const char *)title : "");	2576	title ? (const char *)title : "",
		2577	title ? "\"" : "",
		2578	flag_desc (flagdesc, 512), type);
2784		2579
2785	if (env)	2580	if (!flag[FLAG_REMOVED] && env)
2786	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));	2581	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));
2787		2582
2788	if (map)	2583	if (map)
2789	p += snprintf (p, 256, "(on %s@%d+%d)", map->path, x, y);	2584	p += snprintf (p, 256, "(on %s@%d+%d)", &map->path, x, y);
2790		2585
2791	return info;	2586	return info;
2792	}	2587	}
2793		2588
2794	const char *	2589	const char *
2795	object::debug_desc () const	2590	object::debug_desc () const
2796	{	2591	{
2797	static char info[256 * 3];	2592	static char info[3][256 * 4];
		2593	static int info_idx;
		2594
2798	return debug_desc (info);	2595	return debug_desc (info [++info_idx % 3]);
2799	}	2596	}
2800		2597
		2598	struct region *
		2599	object::region () const
		2600	{
		2601	return map ? map->region (x, y)
		2602	: region::default_region ();
		2603	}
		2604
		2605	void
		2606	object::open_container (object *new_container)
		2607	{
		2608	if (container == new_container)
		2609	return;
		2610
		2611	object *old_container = container;
		2612
		2613	if (old_container)
		2614	{
		2615	if (INVOKE_OBJECT (CLOSE, old_container, ARG_OBJECT (this)))
		2616	return;
		2617
		2618	#if 0
		2619	// remove the "Close old_container" object.
		2620	if (object *closer = old_container->inv)
		2621	if (closer->type == CLOSE_CON)
		2622	closer->destroy ();
		2623	#endif
		2624
		2625	// make sure the container is available
		2626	esrv_send_item (this, old_container);
		2627
		2628	old_container->flag [FLAG_APPLIED] = false;
		2629	container = 0;
		2630
		2631	// client needs item update to make it work, client bug requires this to be separate
		2632	esrv_update_item (UPD_FLAGS, this, old_container);
		2633
		2634	new_draw_info_format (NDI_UNIQUE, 0, this, "You close %s.", old_container->query_name ());
		2635	play_sound (sound_find ("chest_close"));
		2636	}
		2637
		2638	if (new_container)
		2639	{
		2640	if (INVOKE_OBJECT (OPEN, new_container, ARG_OBJECT (this)))
		2641	return;
		2642
		2643	// TODO: this does not seem to serve any purpose anymore?
		2644	#if 0
		2645	// insert the "Close Container" object.
		2646	if (archetype *closer = new_container->other_arch)
		2647	{
		2648	object *closer = new_container->other_arch->instance ();
		2649	closer->flag [FLAG_NO_MAP_SAVE] = 1;
		2650	new_container->insert (closer);
		2651	}
		2652	#endif
		2653
		2654	new_draw_info_format (NDI_UNIQUE, 0, this, "You open %s.", new_container->query_name ());
		2655
		2656	// make sure the container is available, client bug requires this to be separate
		2657	esrv_send_item (this, new_container);
		2658
		2659	new_container->flag [FLAG_APPLIED] = true;
		2660	container = new_container;
		2661
		2662	// client needs flag change
		2663	esrv_update_item (UPD_FLAGS, this, new_container);
		2664	esrv_send_inventory (this, new_container);
		2665	play_sound (sound_find ("chest_open"));
		2666	}
		2667	// else if (!old_container->env && contr && contr->ns)
		2668	// contr->ns->floorbox_reset ();
		2669	}
		2670
		2671	object *
		2672	object::force_find (shstr_tmp name)
		2673	{
		2674	/* cycle through his inventory to look for the MARK we want to
		2675	* place
		2676	*/
		2677	for (object *tmp = inv; tmp; tmp = tmp->below)
		2678	if (tmp->type == FORCE && tmp->slaying == name)
		2679	return splay (tmp);
		2680
		2681	return 0;
		2682	}
		2683
		2684	//-GPL
		2685
		2686	void
		2687	object::force_set_timer (int duration)
		2688	{
		2689	this->duration = 1;
		2690	this->speed_left = -1.f;
		2691
		2692	this->set_speed (duration ? 1.f / duration : 0.f);
		2693	}
		2694
		2695	object *
		2696	object::force_add (shstr_tmp name, int duration)
		2697	{
		2698	if (object *force = force_find (name))
		2699	force->destroy ();
		2700
		2701	object *force = get_archetype (FORCE_NAME);
		2702
		2703	force->slaying = name;
		2704	force->force_set_timer (duration);
		2705	force->flag [FLAG_APPLIED] = true;
		2706
		2707	return insert (force);
		2708	}
		2709
		2710	void
		2711	object::play_sound (faceidx sound) const
		2712	{
		2713	if (!sound)
		2714	return;
		2715
		2716	if (is_on_map ())
		2717	map->play_sound (sound, x, y);
		2718	else if (object *pl = in_player ())
		2719	pl->contr->play_sound (sound);
		2720	}
		2721
		2722	void
		2723	object::say_msg (const char *msg) const
		2724	{
		2725	if (is_on_map ())
		2726	map->say_msg (msg, x, y);
		2727	else if (object *pl = in_player ())
		2728	pl->contr->play_sound (sound);
		2729	}
		2730
		2731	void
		2732	object::make_noise ()
		2733	{
		2734	// we do not model noise in the map, so instead put
		2735	// a temporary light into the noise source
		2736	// could use the map instead, but that's less reliable for our
		2737	// goal, which is to make invisibility a bit harder to exploit
		2738
		2739	// currently only works sensibly for players
		2740	if (!is_player ())
		2741	return;
		2742
		2743	// find old force, or create new one
		2744	object *force = force_find (shstr_noise_force);
		2745
		2746	if (force)
		2747	force->speed_left = -1.f; // patch old speed up
		2748	else
		2749	{
		2750	force = archetype::get (shstr_noise_force);
		2751
		2752	force->slaying = shstr_noise_force;
		2753	force->stats.food = 1;
		2754	force->speed_left = -1.f;
		2755
		2756	force->set_speed (1.f / 4.f);
		2757	force->flag [FLAG_IS_USED_UP] = true;
		2758	force->flag [FLAG_APPLIED] = true;
		2759
		2760	insert (force);
		2761	}
		2762	}
		2763
		2764	void object::change_move_type (MoveType mt)
		2765	{
		2766	if (move_type == mt)
		2767	return;
		2768
		2769	if (is_on_map ())
		2770	{
		2771	// we are on the map, so handle move_on/off effects
		2772	remove ();
		2773	move_type = mt;
		2774	map->insert (this, x, y, this);
		2775	}
		2776	else
		2777	move_type = mt;
		2778	}
		2779
		2780	/* object should be a player.
		2781	* we return the object the player has marked with the 'mark' command
		2782	* below. If no match is found (or object has changed), we return
		2783	* NULL. We leave it up to the calling function to print messages if
		2784	* nothing is found.
		2785	*/
		2786	object *
		2787	object::mark () const
		2788	{
		2789	if (contr && contr->mark && contr->mark->env == this)
		2790	return contr->mark;
		2791	else
		2792	return 0;
		2793	}
		2794

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