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Comparing deliantra/server/common/object.C (file contents):
Revision 1.81 by root, Sat Dec 23 13:56:25 2006 UTC vs.
Revision 1.353 by root, Fri Jan 27 22:00:39 2012 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 (©) 2005,2006,2007,2008,2009,2010,2011,2012 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	#include <bitset>	32	#include <bitset>
36		33
37	int nrofallocobjects = 0;	34	UUID UUID::cur;
38	static UUID uuid;	35	static uint64_t seq_next_save;
39	const uint64 UUID_SKIP = 1<<19;	36	static const uint64 UUID_GAP = 1<<19;
		37	uint32_t mapspace::smellcount = 10000;
40		38
41	object *active_objects; /* List of active objects that need to be processed */	39	objectvec objects;
		40	activevec actives;
42		41
43	short freearr_x[SIZEOFFREE] = { 0, 0, 1, 1, 1, 0, -1, -1, -1, 0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2, -2, -2, -2, -1,	42	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,
44	0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3, -3, -3, -3, -3, -2, -1	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
45	};	55	};
46	short freearr_y[SIZEOFFREE] = { 0, -1, -1, 0, 1, 1, 1, 0, -1, -2, -2, -2, -1, 0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2,	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,
47	-3, -3, -3, -3, -2, -1, 0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3	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
48	};
49	int maxfree[SIZEOFFREE] = { 0, 9, 10, 13, 14, 17, 18, 21, 22, 25, 26, 27, 30, 31, 32, 33, 36, 37, 39, 39, 42, 43, 44, 45,
50	48, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49
51	};	61	};
52	int freedir[SIZEOFFREE] = {	62	int freedir[SIZEOFFREE] = {
53	0, 1, 2, 3, 4, 5, 6, 7, 8, 1, 2, 2, 2, 3, 4, 4, 4, 5, 6, 6, 6, 7, 8, 8, 8,	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,
54	1, 2, 2, 2, 2, 2, 3, 4, 4, 4, 4, 4, 5, 6, 6, 6, 6, 6, 7, 8, 8, 8, 8, 8	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
55	};	67	};
56		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
		76	const char *wall_suffix[16] = {
		77	"0",
		78	"1_3",
		79	"1_4",
		80	"2_1_2",
		81	"1_2",
		82	"2_2_4",
		83	"2_2_1",
		84	"3_1",
		85	"1_1",
		86	"2_2_3",
		87	"2_2_2",
		88	"3_3",
		89	"2_1_1",
		90	"3_4",
		91	"3_2",
		92	"4"
		93	};
		94
57	static void	95	static void
58	write_uuid (void)	96	write_uuid (uval64 skip, bool sync)
59	{	97	{
60	char filename1[MAX_BUF], filename2[MAX_BUF];	98	CALL_BEGIN (2);
61		99	CALL_ARG_SV (newSVval64 (skip));
62	sprintf (filename1, "%s/uuid", settings.localdir);	100	CALL_ARG_SV (boolSV (sync));
63	sprintf (filename2, "%s/uuid~", settings.localdir);	101	CALL_CALL ("cf::write_uuid", G_DISCARD);
64		102	CALL_END;
65	FILE *fp;
66
67	if (!(fp = fopen (filename2, "w")))
68	{
69	LOG (llevError, "ERROR: cannot open %s for writing, unable to write UUID!\n", filename2);
70	return;
71	}
72
73	fprintf (fp, "<1,%llx>\n", (unsigned long long)uuid.seq + UUID_SKIP * 2);
74	fclose (fp);
75	rename (filename2, filename1);
76	}	103	}
77		104
78	static void	105	static void
79	read_uuid (void)	106	read_uuid ()
80	{	107	{
81	char filename[MAX_BUF];	108	char filename[MAX_BUF];
82		109
83	sprintf (filename, "%s/uuid", settings.localdir);	110	sprintf (filename, "%s/uuid", settings.localdir);
		111
		112	seq_next_save = 0;
84		113
85	FILE *fp;	114	FILE *fp;
86		115
87	if (!(fp = fopen (filename, "r")))	116	if (!(fp = fopen (filename, "r")))
88	{	117	{
89	if (errno == ENOENT)	118	if (errno == ENOENT)
90	{	119	{
91	LOG (llevInfo, "RESET uid to 1\n");	120	LOG (llevInfo, "RESET uid to 1\n");
92	uuid.seq = 0;	121	UUID::cur.seq = 0;
93	write_uuid ();	122	write_uuid (UUID_GAP, true);
94	return;	123	return;
95	}	124	}
96		125
97	LOG (llevError, "FATAL: cannot open %s for reading!\n", filename);	126	LOG (llevError, "FATAL: cannot open %s for reading!\n", filename);
98	_exit (1);	127	_exit (1);
99	}	128	}
100		129
101	int version;	130	char buf [UUID::MAX_LEN];
102	unsigned long long uid;	131	buf[0] = 0;
103	if (2 != fscanf (fp, "<%d,%llx>\n", &version, &uid) || version != 1)	132	fgets (buf, sizeof (buf), fp);
		133
		134	if (!UUID::cur.parse (buf))
104	{	135	{
105	LOG (llevError, "FATAL: error reading uid from %s!\n", filename);	136	LOG (llevError, "FATAL: error reading uid from %s (%s)!\n", filename, buf);
106	_exit (1);	137	_exit (1);
107	}	138	}
108		139
109	uuid.seq = uid;	140	LOG (llevDebug, "read UUID: %s\n", UUID::cur.c_str ());
110	write_uuid ();	141
111	LOG (llevDebug, "read UID: %" PRId64 "\n", uid);	142	write_uuid (UUID_GAP, true);
112	fclose (fp);	143	fclose (fp);
113	}	144	}
114		145
115	UUID	146	UUID
116	gen_uuid ()	147	UUID::gen ()
117	{	148	{
118	UUID uid;	149	UUID uid;
119		150
120	uid.seq = ++uuid.seq;	151	uid.seq = ++cur.seq;
121		152
122	if (!(uuid.seq & (UUID_SKIP - 1)))	153	if (expect_false (cur.seq >= seq_next_save))
123	write_uuid ();	154	{
		155	seq_next_save = UUID::cur.seq + (UUID_GAP >> 1);
		156	write_uuid (UUID_GAP, false);
		157	}
		158
124		159
125	return uid;	160	return uid;
126	}	161	}
127		162
128	void	163	void
129	init_uuid ()	164	UUID::init ()
130	{	165	{
131	read_uuid ();	166	read_uuid ();
132	}	167	}
133		168
		169	bool
		170	UUID::parse (const char *s)
		171	{
		172	if (*s++ != '<' || *s++ != '1' || *s++ != '.')
		173	return false;
		174
		175	seq = 0;
		176
		177	while (*s != '>')
		178	{
		179	if (*s < '0')
		180	return false;
		181
		182	// this gives nice branchless code with gcc
		183	assert ('0' < 'a' && '0' == 48 && 'a' == 97);
		184	int digit = (*s + (*s & 0x40 ? 9 : 0)) & 15;
		185
		186	seq = (seq << 4) | digit;
		187
		188	++s;
		189	}
		190
		191	return true;
		192	}
		193
		194	char *
		195	UUID::append (char *buf) const
		196	{
		197	*buf++ = '<';
		198	*buf++ = '1';
		199	*buf++ = '.';
		200
		201	uint64_t seq = this->seq;
		202	const int bits = 64;
		203	char nz = 0;
		204	static const char tohex [] = "0123456789abcdef";
		205
		206	// assert (len >= 3 + bits / 4 + 1 + 1);
		207	for (int i = bits / 4; --i; )
		208	{
		209	uint8_t digit = seq >> (bits - 4);
		210
		211	*buf = tohex [digit];
		212	nz |= digit;
		213	buf += nz ? 1 : 0;
		214	seq <<= 4;
		215	}
		216
		217	// last digit is special - always emit
		218	uint8_t digit = seq >> (bits - 4);
		219	*buf++ = tohex [digit];
		220
		221	*buf++ = '>';
		222
		223	return buf;
		224	}
		225
		226	char *
		227	UUID::c_str () const
		228	{
		229	static char buf [MAX_LEN];
		230	*append (buf) = 0;
		231	return buf;
		232	}
		233
134	/* Returns TRUE if every key_values in wants has a partner with the same value in has. */	234	/* Returns TRUE if every key_values in wants has a partner with the same value in has. */
135	static int	235	static bool
136	compare_ob_value_lists_one (const object *wants, const object *has)	236	compare_ob_value_lists_one (const object *wants, const object *has)
137	{	237	{
138	key_value *wants_field;
139
140	/* n-squared behaviour (see get_ob_key_link()), but I'm hoping both	238	/* n-squared behaviour (see kv.get), but I'm hoping both
141	* objects with lists are rare, and lists stay short. If not, use a	239	* objects with lists are rare, and lists stay short. If not, use a
142	* different structure or at least keep the lists sorted...	240	* different structure or at least keep the lists sorted...
143	*/	241	*/
144		242
145	/* For each field in wants, */	243	/* For each field in wants, */
146	for (wants_field = wants->key_values; wants_field != NULL; wants_field = wants_field->next)	244	for (key_value *kv = wants->kv.first; kv; kv = kv->next)
147	{	245	if (has->kv.get (kv->key) != kv->value)
148	key_value *has_field;	246	return false;
149
150	/* Look for a field in has with the same key. */
151	has_field = get_ob_key_link (has, wants_field->key);
152
153	if (has_field == NULL)
154	{
155	/* No field with that name. */
156	return FALSE;
157	}
158
159	/* Found the matching field. */
160	if (has_field->value != wants_field->value)
161	{
162	/* Values don't match, so this half of the comparison is false. */
163	return FALSE;
164	}
165
166	/* If we get here, we found a match. Now for the next field in wants. */
167	}
168		247
169	/* If we get here, every field in wants has a matching field in has. */	248	/* If we get here, every field in wants has a matching field in has. */
170	return TRUE;	249	return true;
171	}	250	}
172		251
173	/* Returns TRUE if ob1 has the same key_values as ob2. */	252	/* Returns TRUE if ob1 has the same key_values as ob2. */
174	static int	253	static bool
175	compare_ob_value_lists (const object *ob1, const object *ob2)	254	compare_ob_value_lists (const object *ob1, const object *ob2)
176	{	255	{
177	/* However, there may be fields in has which aren't partnered in wants,	256	/* However, there may be fields in has which aren't partnered in wants,
178	* so we need to run the comparison *twice*. :(	257	* so we need to run the comparison *twice*. :(
179	*/	258	*/
180	return compare_ob_value_lists_one (ob1, ob2) && compare_ob_value_lists_one (ob2, ob1);	259	return compare_ob_value_lists_one (ob1, ob2)
		260	&& compare_ob_value_lists_one (ob2, ob1);
181	}	261	}
182		262
183	/* Function examines the 2 objects given to it, and returns true if	263	/* Function examines the 2 objects given to it, and returns true if
184	* they can be merged together.	264	* they can be merged together.
185	*	265	*
…		…
190	* Check nrof variable *before* calling can_merge()	270	* Check nrof variable *before* calling can_merge()
191	*	271	*
192	* Improvements made with merge: Better checking on potion, and also	272	* Improvements made with merge: Better checking on potion, and also
193	* check weight	273	* check weight
194	*/	274	*/
195
196	bool object::can_merge_slow (object *ob1, object *ob2)	275	bool object::can_merge_slow (object *ob1, object *ob2)
197	{	276	{
198	/* A couple quicksanity checks */	277	/* A couple quick sanity checks */
199	if (ob1 == ob2	278	if (ob1 == ob2
200	|| ob1->type != ob2->type	279	|| ob1->type != ob2->type
201	|| ob1->speed != ob2->speed
202	|| ob1->value != ob2->value	280	|| ob1->value != ob2->value
203	|| ob1->name != ob2->name)	281	|| ob1->name != ob2->name
		282	|| ob1->custom_name != ob2->custom_name
		283	|| fabs (ob1->speed - ob2->speed) >= MIN_ACTIVE_SPEED)
204	return 0;	284	return 0;
205		285
206	//TODO: this ain't working well, use nicer and correct overflow check
207	/* Do not merge objects if nrof would overflow. We use 1UL<<31 since that	286	/* Do not merge objects if nrof would overflow, assume nrof
208	* value could not be stored in a sint32 (which unfortunately sometimes is	287	* is always 0 .. 2**31-1 */
209	* used to store nrof).	288	if (ob1->nrof > 0x7fffffff - ob2->nrof)
210	*/
211	if (ob1->nrof + ob2->nrof >= 1UL << 31)
212	return 0;	289	return 0;
213		290
214	/* If the objects have been identified, set the BEEN_APPLIED flag.	291	/* If the objects have been identified, set the BEEN_APPLIED flag.
215	* This is to the comparison of the flags below will be OK. We	292	* This is to the comparison of the flags below will be OK. We
216	* just can't ignore the been applied or identified flags, as they	293	* just can't ignore the been applied or identified flags, as they
217	* are not equal - just if it has been identified, the been_applied	294	* are not equal - just if it has been identified, the been_applied
218	* flags lose any meaning.	295	* flags lose any meaning.
219	*/	296	*/
220	if (QUERY_FLAG (ob1, FLAG_IDENTIFIED))	297	if (ob1->flag [FLAG_IDENTIFIED])
221	SET_FLAG (ob1, FLAG_BEEN_APPLIED);	298	ob1->set_flag (FLAG_BEEN_APPLIED);
222		299
223	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))	300	if (ob2->flag [FLAG_IDENTIFIED])
224	SET_FLAG (ob2, FLAG_BEEN_APPLIED);	301	ob2->set_flag (FLAG_BEEN_APPLIED);
225		302
226	if ((ob1->flag ^ ob2->flag).reset (FLAG_INV_LOCKED).reset (FLAG_CLIENT_SENT).any ()	303	if (ob1->arch->archname != ob2->arch->archname
227	|| ob1->arch != ob2->arch
228	|| ob1->name != ob2->name	304	|| ob1->name != ob2->name
229	|| ob1->title != ob2->title	305	|| ob1->title != ob2->title
230	|| ob1->msg != ob2->msg	306	|| ob1->msg != ob2->msg
231	|| ob1->weight != ob2->weight	307	|| ob1->weight != ob2->weight
232	|| memcmp (&ob1->resist, &ob2->resist, sizeof (ob1->resist))
233	|| memcmp (&ob1->stats , &ob2->stats , sizeof (ob1->stats) )
234	|| ob1->attacktype != ob2->attacktype	308	|| ob1->attacktype != ob2->attacktype
235	|| ob1->magic != ob2->magic	309	|| ob1->magic != ob2->magic
236	|| ob1->slaying != ob2->slaying	310	|| ob1->slaying != ob2->slaying
237	|| ob1->skill != ob2->skill	311	|| ob1->skill != ob2->skill
238	|| ob1->value != ob2->value	312	|| ob1->value != ob2->value
239	|| ob1->animation_id != ob2->animation_id	313	|| ob1->animation_id != ob2->animation_id
		314	|| (ob1->face != ob2->face && !ob1->animation_id) // face and animation are dependend on each other
240	|| ob1->client_type != ob2->client_type	315	|| ob1->client_type != ob2->client_type
241	|| ob1->materialname != ob2->materialname	316	|| ob1->material != ob2->material
242	|| ob1->lore != ob2->lore	317	|| ob1->lore != ob2->lore
243	|| ob1->subtype != ob2->subtype	318	|| ob1->subtype != ob2->subtype
244	|| ob1->move_type != ob2->move_type	319	|| ob1->move_type != ob2->move_type
245	|| ob1->move_block != ob2->move_block	320	|| ob1->move_block != ob2->move_block
246	|| ob1->move_allow != ob2->move_allow	321	|| ob1->move_allow != ob2->move_allow
247	|| ob1->move_on != ob2->move_on	322	|| ob1->move_on != ob2->move_on
248	|| ob1->move_off != ob2->move_off	323	|| ob1->move_off != ob2->move_off
249	|| ob1->move_slow != ob2->move_slow	324	|| ob1->move_slow != ob2->move_slow
250	|| ob1->move_slow_penalty != ob2->move_slow_penalty)	325	|| fabs (ob1->move_slow_penalty - ob2->move_slow_penalty) >= (1.f / 1024.f)
		326	|| memcmp (&ob1->resist, &ob2->resist, sizeof (ob1->resist))
		327	|| memcmp (&ob1->stats , &ob2->stats , sizeof (ob1->stats)))
251	return 0;	328	return 0;
252		329
		330	if ((ob1->flag ^ ob2->flag)
		331	.reset (FLAG_INV_LOCKED)
		332	.reset (FLAG_REMOVED)
		333	.any ())
		334	return 0;
		335
253	/* This is really a spellbook check - really, we should	336	/* This is really a spellbook check - we should in general
254	* check all objects in the inventory.	337	* not merge objects with real inventories, as splitting them
		338	* is hard.
255	*/	339	*/
256	if (ob1->inv || ob2->inv)	340	if (ob1->inv || ob2->inv)
257	{	341	{
258	/* if one object has inventory but the other doesn't, not equiv */	342	if (!(ob1->inv && ob2->inv))
259	if ((ob1->inv && !ob2->inv) || (ob2->inv && !ob1->inv))	343	return 0; /* inventories differ in length */
260	return 0;
261		344
262	/* Now check to see if the two inventory objects could merge */	345	if (ob1->inv->below || ob2->inv->below)
		346	return 0; /* more than one object in inv */
		347
263	if (!object::can_merge (ob1->inv, ob2->inv))	348	if (!object::can_merge (ob1->inv, ob2->inv))
264	return 0;	349	return 0; /* inventory objects differ */
265		350
266	/* inventory ok - still need to check rest of this object to see	351	/* inventory ok - still need to check rest of this object to see
267	* if it is valid.	352	* if it is valid.
268	*/	353	*/
269	}	354	}
270		355
271	/* Don't merge objects that are applied. With the new 'body' code,	356	/* Don't merge objects that are applied. With the new 'body' code,
272	* it is possible for most any character to have more than one of	357	* it is possible for most any character to have more than one of
273	* some items equipped, and we don't want those to merge.	358	* some items equipped, and we don't want those to merge.
274	*/	359	*/
275	if (QUERY_FLAG (ob1, FLAG_APPLIED) || QUERY_FLAG (ob2, FLAG_APPLIED))	360	if (ob1->flag [FLAG_APPLIED] || ob2->flag [FLAG_APPLIED])
276	return 0;	361	return 0;
277		362
278	/* Note sure why the following is the case - either the object has to	363	/* Note sure why the following is the case - either the object has to
279	* be animated or have a very low speed. Is this an attempted monster	364	* be animated or have a very low speed. Is this an attempted monster
280	* check?	365	* check?
281	*/	366	*/
282	if (!QUERY_FLAG (ob1, FLAG_ANIMATE) && FABS ((ob1)->speed) > MIN_ACTIVE_SPEED)	367	if (!ob1->flag [FLAG_ANIMATE] && ob1->has_active_speed ())
283	return 0;	368	return 0;
284		369
285	switch (ob1->type)	370	switch (ob1->type)
286	{	371	{
287	case SCROLL:	372	case SCROLL:
288	if (ob1->level != ob2->level)	373	if (ob1->level != ob2->level)
289	return 0;	374	return 0;
290	break;	375	break;
291	}	376	}
292		377
293	if (ob1->key_values != NULL || ob2->key_values != NULL)	378	if (!ob1->kv.empty () || !ob2->kv.empty ())
294	{	379	{
295	/* At least one of these has key_values. */	380	/* At least one of these has key_values. */
296	if ((ob1->key_values == NULL) != (ob2->key_values == NULL))	381	if (ob1->kv.empty () != ob2->kv.empty ())
297	/* One has fields, but the other one doesn't. */	382	return 0; /* One has fields, but the other one doesn't. */
		383
		384	if (!compare_ob_value_lists (ob1, ob2))
298	return 0;	385	return 0;
299	else if (!compare_ob_value_lists (ob1, ob2))
300	return 0;
301	}	386	}
302		387
303	//TODO: generate an event or call into perl for additional checks
304	if (ob1->self || ob2->self)	388	if (ob1->self || ob2->self)
305	{	389	{
306	ob1->optimise ();	390	ob1->optimise ();
307	ob2->optimise ();	391	ob2->optimise ();
308		392
309	if (ob1->self || ob2->self)	393	if (ob1->self || ob2->self)
		394	{
		395	int k1 = ob1->self ? HvTOTALKEYS (ob1->self) : 0;
		396	int k2 = ob2->self ? HvTOTALKEYS (ob2->self) : 0;
		397
		398	if (k1 != k2)
310	return 0;	399	return 0;
		400
		401	if (k1 == 0)
		402	return 1;
		403
		404	if (!cfperl_can_merge (ob1, ob2))
		405	return 0;
		406	}
311	}	407	}
312		408
313	/* Everything passes, must be OK. */	409	/* Everything passes, must be OK. */
314	return 1;	410	return 1;
315	}	411	}
316		412
		413	// find player who can see this object
		414	object *
		415	object::visible_to () const
		416	{
		417	if (client_visible () && !flag [FLAG_REMOVED])
		418	{
		419	// see if we are in a container of sorts
		420	if (env)
		421	{
		422	// the player inventory itself is always visible
		423	if (env->is_player ())
		424	return env;
		425
		426	// else a player could have our env open
		427	object *envest = env->outer_env_or_self ();
		428
		429	// the player itself is always on a map, so we will find him here
		430	// even if our inv is in a player.
		431	if (envest->is_on_map ())
		432	if (object *pl = envest->ms ().player ())
		433	if (pl->container_ () == env)
		434	return pl;
		435	}
		436	else
		437	{
		438	// maybe there is a player standing on the same mapspace
		439	// this will catch the case where "this" is a player
		440	if (object *pl = ms ().player ())
		441	if ((pl->contr->ns && !pl->container_ () && !pl->contr->ns->update_look)
		442	|| pl->container_ () == this)
		443	return pl;
		444	}
		445	}
		446
		447	return 0;
		448	}
		449
		450	// adjust weight per container type ("of holding")
		451	static uint32
		452	weight_adjust_for (object *op, uint32 weight)
		453	{
		454	return op->type == CONTAINER
		455	? weight - weight * op->stats.Str / 100
		456	: weight;
		457	}
		458
317	/*	459	/*
		460	* subtracts, then adds, the specified weight to an object,
		461	* and also updates how much the environment(s) is/are carrying.
		462	*/
		463	static void
		464	adjust_weight (object *op, sint32 sub, sint32 add)
		465	{
		466	while (op)
		467	{
		468	sint32 ocarrying = op->carrying;
		469
		470	op->carrying -= weight_adjust_for (op, sub);
		471	op->carrying += weight_adjust_for (op, add);
		472
		473	if (object *pl = op->visible_to ())
		474	if (pl != op) // player is handled lazily
		475	esrv_update_item (UPD_WEIGHT, pl, op);
		476
		477	sub = ocarrying;
		478	add = op->carrying;
		479
		480	op = op->env;
		481	}
		482	}
		483
		484	/*
318	* sum_weight() is a recursive function which calculates the weight	485	* this is a recursive function which calculates the weight
319	* an object is carrying. It goes through in figures out how much	486	* an object is carrying. It goes through op and figures out how much
320	* containers are carrying, and sums it up.	487	* containers are carrying, and sums it up.
321	*/	488	*/
322	long	489	void
323	sum_weight (object *op)	490	object::update_weight ()
324	{	491	{
325	long sum;	492	sint32 sum = 0;
326	object *inv;
327		493
328	for (sum = 0, inv = op->inv; inv != NULL; inv = inv->below)	494	for (object *op = inv; op; op = op->below)
329	{
330	if (inv->inv)
331	sum_weight (inv);
332	sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1);
333	}	495	{
		496	op->update_weight ();
334		497
335	if (op->type == CONTAINER && op->stats.Str)	498	sum += weight_adjust_for (this, op->total_weight ());
336	sum = (sum * (100 - op->stats.Str)) / 100;	499	}
337		500
338	if (op->carrying != sum)	501	if (sum != carrying)
		502	{
		503	if (carrying != sum && carrying)//D
		504	LOG (llevDebug, "updating carrying got %ld, expected %ld (%s)\n",
		505	(long long)sum, (long long)carrying, debug_desc ());
		506
339	op->carrying = sum;	507	carrying = sum;
340		508
341	return sum;	509	if (object *pl = visible_to ())
		510	if (pl != this) // player is handled lazily
		511	esrv_update_item (UPD_WEIGHT, pl, this);
		512	}
342	}	513	}
343		514
344	/**	515	/*
345	* Return the outermost environment object for a given object.	516	* Used by: Server DM commands: dumpbelow, dump. Some error messages.
346	*/	517	*/
347
348	object *
349	object_get_env_recursive (object *op)
350	{
351	while (op->env != NULL)
352	op = op->env;
353	return op;
354	}
355
356	/*
357	* Used by: Crossedit: dump. Server DM commands: dumpbelow, dump.
358	* Some error messages.
359	* The result of the dump is stored in the static global errmsg array.
360	*/
361
362	char *	518	char *
363	dump_object (object *op)	519	dump_object (object *op)
364	{	520	{
365	if (!op)	521	if (!op)
366	return strdup ("[NULLOBJ]");	522	return strdup ("[NULLOBJ]");
367		523
368	object_freezer freezer;	524	object_freezer freezer;
369	save_object (freezer, op, 3);	525	op->write (freezer);
370	return freezer.as_string ();	526	return freezer.as_string ();
371	}	527	}
372		528
373	/*	529	char *
374	* get_nearest_part(multi-object, object 2) returns the part of the	530	object::as_string ()
375	* multi-object 1 which is closest to the second object.
376	* If it's not a multi-object, it is returned.
377	*/
378
379	object *
380	get_nearest_part (object *op, const object *pl)
381	{	531	{
382	object *tmp, *closest;	532	return dump_object (this);
383	int last_dist, i;
384
385	if (op->more == NULL)
386	return op;
387	for (last_dist = distance (op, pl), closest = op, tmp = op->more; tmp != NULL; tmp = tmp->more)
388	if ((i = distance (tmp, pl)) < last_dist)
389	closest = tmp, last_dist = i;
390	return closest;
391	}	533	}
392		534
393	/*	535	/*
394	* Returns the object which has the count-variable equal to the argument.	536	* Returns the object which has the count-variable equal to the argument.
		537	* VERRRY slow.
395	*/	538	*/
396
397	object *	539	object *
398	find_object (tag_t i)	540	find_object (tag_t i)
399	{	541	{
400	for (object *op = object::first; op; op = op->next)	542	for_all_objects (op)
401	if (op->count == i)	543	if (op->count == i)
402	return op;	544	return op;
		545
		546	return 0;
		547	}
		548
		549	/*
		550	* Returns the object which has the uuid equal to the argument.
		551	* MOAR VERRRY slow.
		552	*/
		553
		554	object *
		555	find_object_uuid (UUID i)
		556	{
		557	for_all_objects (op)
		558	if (op->uuid == i)
		559	return op;
403		560
404	return 0;	561	return 0;
405	}	562	}
406		563
407	/*	564	/*
408	* Returns the first object which has a name equal to the argument.	565	* Returns the first object which has a name equal to the argument.
409	* Used only by the patch command, but not all that useful.	566	* Used only by the patch command, but not all that useful.
410	* Enables features like "patch <name-of-other-player> food 999"	567	* Enables features like "patch <name-of-other-player> food 999"
411	*/	568	*/
412
413	object *	569	object *
414	find_object_name (const char *str)	570	find_object_name (const char *str)
415	{	571	{
416	shstr_cmp str_ (str);	572	shstr_cmp str_ (str);
417	object *op;
418		573
419	for (op = object::first; op != NULL; op = op->next)	574	if (str_)
		575	for_all_objects (op)
420	if (op->name == str_)	576	if (op->name == str_)
421	break;	577	return op;
422		578
423	return op;	579	return 0;
424	}
425
426	void
427	free_all_object_data ()
428	{
429	LOG (llevDebug, "%d allocated objects\n", nrofallocobjects);
430	}	580	}
431		581
432	/*	582	/*
433	* Sets the owner and sets the skill and exp pointers to owner's current	583	* Sets the owner and sets the skill and exp pointers to owner's current
434	* skill and experience objects.	584	* skill and experience objects.
		585	* ACTUALLY NO! investigate! TODO
435	*/	586	*/
436	void	587	void
437	object::set_owner (object *owner)	588	object::set_owner (object *owner)
438	{	589	{
		590	// allow objects which own objects
439	if (!owner)	591	if (owner)
440	return;
441
442	/* next line added to allow objects which own objects */
443	/* Add a check for ownercounts in here, as I got into an endless loop
444	* with the fireball owning a poison cloud which then owned the
445	* fireball. I believe that was caused by one of the objects getting
446	* freed and then another object replacing it. Since the ownercounts
447	* didn't match, this check is valid and I believe that cause is valid.
448	*/
449	while (owner->owner)	592	while (owner->owner)
450	owner = owner->owner;	593	owner = owner->owner;
		594
		595	if (flag [FLAG_FREED])
		596	{
		597	LOG (llevError | logBacktrace, "tried to set owner of %s to %s\n", debug_desc (), owner->debug_desc ());
		598	return;
		599	}
451		600
452	this->owner = owner;	601	this->owner = owner;
453	}
454
455	/* Zero the key_values on op, decrementing the shared-string
456	* refcounts and freeing the links.
457	*/
458	static void
459	free_key_values (object *op)
460	{
461	for (key_value *i = op->key_values; i != 0;)
462	{
463	key_value *next = i->next;
464	delete i;
465
466	i = next;
467	}
468
469	op->key_values = 0;
470	}	602	}
471		603
472	/*	604	/*
473	* copy_to first frees everything allocated by the dst object,	605	* copy_to first frees everything allocated by the dst object,
474	* and then copies the contents of itself into the second	606	* and then copies the contents of itself into the second
…		…
478	* will point at garbage.	610	* will point at garbage.
479	*/	611	*/
480	void	612	void
481	object::copy_to (object *dst)	613	object::copy_to (object *dst)
482	{	614	{
483	bool is_freed = QUERY_FLAG (dst, FLAG_FREED);	615	dst->remove ();
484	bool is_removed = QUERY_FLAG (dst, FLAG_REMOVED);
485
486	*(object_copy *)dst = *this;	616	*(object_copy *)dst = *this;
487		617
488	if (self || cb)	618	// maybe move to object_copy?
489	INVOKE_OBJECT (CLONE, this, ARG_OBJECT (dst));	619	dst->kv = kv;
490		620
491	if (is_freed)	621	dst->flag [FLAG_REMOVED] = true;
492	SET_FLAG (dst, FLAG_FREED);	622	dst->activate ();
		623	}
493		624
494	if (is_removed)	625	void
495	SET_FLAG (dst, FLAG_REMOVED);	626	object::instantiate ()
		627	{
		628	if (!uuid.seq) // HACK
		629	uuid = UUID::gen ();
496		630
497	if (speed < 0)	631	// TODO: unclean state changes, should not be done in copy_to AND instantiate
498	dst->speed_left = speed_left - RANDOM () % 200 / 100.0;	632	if (flag [FLAG_RANDOM_SPEED] && speed)
		633	speed_left = - speed - rndm (); // TODO animation
		634	else
		635	speed_left = -1.;
499		636
500	/* Copy over key_values, if any. */	637	/* copy the body_info to the body_used - this is only really
501	if (key_values)	638	* need for monsters, but doesn't hurt to do it for everything.
502	{	639	* by doing so, when a monster is created, it has good starting
503	key_value *tail = 0;	640	* values for the body_used info, so when items are created
504	key_value *i;	641	* for it, they can be properly equipped.
		642	*/
		643	for (int i = NUM_BODY_LOCATIONS; i--; )
		644	slot[i].used = slot[i].info;
505		645
506	dst->key_values = 0;	646	attachable::instantiate ();
507
508	for (i = key_values; i; i = i->next)
509	{
510	key_value *new_link = new key_value;
511
512	new_link->next = 0;
513	new_link->key = i->key;
514	new_link->value = i->value;
515
516	/* Try and be clever here, too. */
517	if (!dst->key_values)
518	{
519	dst->key_values = new_link;
520	tail = new_link;
521	}
522	else
523	{
524	tail->next = new_link;
525	tail = new_link;
526	}
527	}
528	}
529
530	update_ob_speed (dst);
531	}	647	}
532		648
533	object *	649	object *
534	object::clone ()	650	object::clone ()
535	{	651	{
536	object *neu = create ();	652	object *neu = create ();
537	copy_to (neu);	653	copy_to (neu);
		654
		655	// TODO: unclean state changes, should not be done in clone AND instantiate
		656	if (neu->flag [FLAG_RANDOM_SPEED] && neu->speed)
		657	neu->speed_left = - neu->speed - rndm (); // TODO animation
		658
		659	neu->map = map; // not copied by copy_to
538	return neu;	660	return neu;
539	}	661	}
540		662
541	/*	663	/*
542	* If an object with the IS_TURNABLE() flag needs to be turned due	664	* If an object with the IS_TURNABLE() flag needs to be turned due
543	* to the closest player being on the other side, this function can	665	* to the closest player being on the other side, this function can
544	* be called to update the face variable, _and_ how it looks on the map.	666	* be called to update the face variable, _and_ how it looks on the map.
545	*/	667	*/
546
547	void	668	void
548	update_turn_face (object *op)	669	update_turn_face (object *op)
549	{	670	{
550	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || op->arch == NULL)	671	if (!op->flag [FLAG_IS_TURNABLE] || !op->arch)
551	return;	672	return;
		673
552	SET_ANIMATION (op, op->direction);	674	SET_ANIMATION (op, op->direction);
553	update_object (op, UP_OBJ_FACE);	675	update_object (op, UP_OBJ_FACE);
554	}	676	}
555		677
556	/*	678	/*
557	* Updates the speed of an object. If the speed changes from 0 to another	679	* Updates the speed of an object. If the speed changes from 0 to another
558	* value, or vice versa, then add/remove the object from the active list.	680	* value, or vice versa, then add/remove the object from the active list.
559	* This function needs to be called whenever the speed of an object changes.	681	* This function needs to be called whenever the speed of an object changes.
560	*/	682	*/
561	void	683	void
562	update_ob_speed (object *op)	684	object::set_speed (float speed)
563	{	685	{
564	extern int arch_init;	686	this->speed = speed;
565		687
566	/* No reason putting the archetypes objects on the speed list,	688	if (has_active_speed ())
567	* since they never really need to be updated.	689	activate ();
568	*/
569
570	if (QUERY_FLAG (op, FLAG_FREED) && op->speed)
571	{
572	LOG (llevError, "Object %s is freed but has speed.\n", &op->name);
573	#ifdef MANY_CORES
574	abort ();
575	#else
576	op->speed = 0;
577	#endif
578	}
579
580	if (arch_init)
581	return;
582
583	if (FABS (op->speed) > MIN_ACTIVE_SPEED)
584	{
585	/* If already on active list, don't do anything */
586	if (op->active_next || op->active_prev || op == active_objects)
587	return;
588
589	/* process_events() expects us to insert the object at the beginning
590	* of the list. */
591	op->active_next = active_objects;
592
593	if (op->active_next != NULL)
594	op->active_next->active_prev = op;
595
596	active_objects = op;
597	}
598	else	690	else
599	{	691	deactivate ();
600	/* If not on the active list, nothing needs to be done */
601	if (!op->active_next && !op->active_prev && op != active_objects)
602	return;
603
604	if (op->active_prev == NULL)
605	{
606	active_objects = op->active_next;
607
608	if (op->active_next != NULL)
609	op->active_next->active_prev = NULL;
610	}
611	else
612	{
613	op->active_prev->active_next = op->active_next;
614
615	if (op->active_next)
616	op->active_next->active_prev = op->active_prev;
617	}
618
619	op->active_next = NULL;
620	op->active_prev = NULL;
621	}
622	}
623
624	/* This function removes object 'op' from the list of active
625	* objects.
626	* This should only be used for style maps or other such
627	* reference maps where you don't want an object that isn't
628	* in play chewing up cpu time getting processed.
629	* The reverse of this is to call update_ob_speed, which
630	* will do the right thing based on the speed of the object.
631	*/
632	void
633	remove_from_active_list (object *op)
634	{
635	/* If not on the active list, nothing needs to be done */
636	if (!op->active_next && !op->active_prev && op != active_objects)
637	return;
638
639	if (op->active_prev == NULL)
640	{
641	active_objects = op->active_next;
642	if (op->active_next != NULL)
643	op->active_next->active_prev = NULL;
644	}
645	else
646	{
647	op->active_prev->active_next = op->active_next;
648	if (op->active_next)
649	op->active_next->active_prev = op->active_prev;
650	}
651	op->active_next = NULL;
652	op->active_prev = NULL;
653	}	692	}
654		693
655	/*	694	/*
656	* update_object() updates the the map.	695	* update_object() updates the the map.
657	* It takes into account invisible objects (and represent squares covered	696	* It takes into account invisible objects (and represent squares covered
…		…
670	* UP_OBJ_FACE: only the objects face has changed.	709	* UP_OBJ_FACE: only the objects face has changed.
671	*/	710	*/
672	void	711	void
673	update_object (object *op, int action)	712	update_object (object *op, int action)
674	{	713	{
675	MoveType move_on, move_off, move_block, move_slow;	714	if (!op)
676
677	if (op == NULL)
678	{	715	{
679	/* this should never happen */	716	/* this should never happen */
680	LOG (llevDebug, "update_object() called for NULL object.\n");	717	LOG (llevError | logBacktrace, "update_object() called for NULL object.\n");
681	return;	718	return;
682	}	719	}
683		720
684	if (op->env)	721	if (!op->is_on_map ())
685	{	722	{
686	/* Animation is currently handled by client, so nothing	723	/* Animation is currently handled by client, so nothing
687	* to do in this case.	724	* to do in this case.
688	*/	725	*/
689	return;	726	return;
690	}	727	}
691		728
692	/* If the map is saving, don't do anything as everything is
693	* going to get freed anyways.
694	*/
695	if (!op->map || op->map->in_memory == MAP_SAVING)
696	return;
697
698	/* make sure the object is within map boundaries */	729	/* make sure the object is within map boundaries */
699	if (op->x < 0 || op->x >= MAP_WIDTH (op->map) || op->y < 0 || op->y >= MAP_HEIGHT (op->map))	730	if (op->x < 0 || op->x >= op->map->width || op->y < 0 || op->y >= op->map->height)
700	{	731	{
701	LOG (llevError, "update_object() called for object out of map!\n");	732	LOG (llevError, "update_object() called for object out of map!\n");
702	#ifdef MANY_CORES	733	#ifdef MANY_CORES
703	abort ();	734	abort ();
704	#endif	735	#endif
705	return;	736	return;
706	}	737	}
707		738
708	mapspace &m = op->ms ();	739	mapspace &m = op->ms ();
709		740
710	if (m.flags_ & P_NEED_UPDATE)	741	if (!(m.flags_ & P_UPTODATE))
711	/* nop */;	742	m.update_up (); // nothing to do except copy up
712	else if (action == UP_OBJ_INSERT)	743	else if (action == UP_OBJ_INSERT)
713	{	744	{
		745	#if 0
714	// this is likely overkill, TODO: revisit (schmorp)	746	// this is likely overkill, TODO: revisit (schmorp)
715	if ((QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(m.flags_ & P_BLOCKSVIEW))	747	if ((op->flag [FLAG_BLOCKSVIEW] && !(m.flags_ & P_BLOCKSVIEW))
716	|| (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(m.flags_ & P_NO_MAGIC))	748	|| (op->flag [FLAG_NO_MAGIC] && !(m.flags_ & P_NO_MAGIC))
717	|| (op->type == PLAYER && !(m.flags_ & P_PLAYER))	749	|| (op->is_player () && !(m.flags_ & P_PLAYER))
718	|| (op->type == SAFE_GROUND && !(m.flags_ & P_SAFE))	750	|| (op->type == SAFE_GROUND && !(m.flags_ & P_SAFE))
719	|| (QUERY_FLAG (op, FLAG_ALIVE) && !(m.flags_ & P_IS_ALIVE))	751	|| (op->flag [FLAG_ALIVE] && !(m.flags_ & P_IS_ALIVE))
720	|| (QUERY_FLAG (op, FLAG_DAMNED) && !(m.flags_ & P_NO_CLERIC))	752	|| (op->flag [FLAG_DAMNED] && !(m.flags_ & P_NO_CLERIC))
721	|| (m.move_on | op->move_on ) != m.move_on	753	|| (m.move_on | op->move_on ) != m.move_on
722	|| (m.move_off | op->move_off ) != m.move_off	754	|| (m.move_off | op->move_off ) != m.move_off
723	|| (m.move_slow | op->move_slow) != m.move_slow	755	|| (m.move_slow | op->move_slow) != m.move_slow
724	/* This isn't perfect, but I don't expect a lot of objects to	756	/* This isn't perfect, but I don't expect a lot of objects to
725	* to have move_allow right now.	757	* have move_allow right now.
726	*/	758	*/
727	|| ((m.move_block | op->move_block) & ~op->move_allow) != m.move_block	759	|| ((m.move_block | op->move_block) & ~op->move_allow) != m.move_block
		760	m.invalidate ();
		761	#else
728	|| 1) // the above is not strong enough a test to skip updating. los maybe? TODO (Schmorp)	762	// the above is not strong enough a test to skip updating. los maybe? TODO (schmorp)
729	m.flags_ = P_NEED_UPDATE;	763	m.invalidate ();
		764	#endif
730	}	765	}
731	/* if the object is being removed, we can't make intelligent	766	/* if the object is being removed, we can't make intelligent
732	* decisions, because remove_ob can't really pass the object	767	* decisions, because remove_ob can't really pass the object
733	* that is being removed.	768	* that is being removed.
734	*/	769	*/
735	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)	770	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)
736	m.flags_ = P_NEED_UPDATE;	771	m.invalidate ();
737	else if (action == UP_OBJ_FACE)	772	else if (action == UP_OBJ_FACE)
738	/* Nothing to do for that case */ ;	773	m.update_up (); // nothing to do for that case, except copy up
739	else	774	else
740	LOG (llevError, "update_object called with invalid action: %d\n", action);	775	LOG (llevError, "update_object called with invalid action: %d\n", action);
741		776
742	if (op->more)	777	if (op->more)
743	update_object (op->more, action);	778	update_object (op->more, action);
744	}	779	}
745		780
746	object::vector object::mortals;
747	object::vector object::objects; // not yet used
748	object *object::first;
749
750	void object::free_mortals ()
751	{
752	for (AUTODECL (i, mortals.begin ()); i != mortals.end ();)
753	if ((*i)->refcnt)
754	++i; // further delay freeing
755	else
756	{
757	delete *i;
758	mortals.erase (i);
759	}
760	}
761
762	object::object ()	781	object::object ()
763	{	782	{
764	SET_FLAG (this, FLAG_REMOVED);	783	this->set_flag (FLAG_REMOVED);
765		784
766	expmul = 1.0;	785	//expmul = 1.0; declared const for the time being
767	face = blank_face;	786	face = blank_face;
		787	material = MATERIAL_NULL;
768	}	788	}
769		789
770	object::~object ()	790	object::~object ()
771	{	791	{
772	free_key_values (this);	792	unlink ();
		793
		794	kv.clear ();
773	}	795	}
774		796
775	void object::link ()	797	void object::link ()
776	{	798	{
777	count = ++ob_count;	799	assert (!index);//D
778	uuid = gen_uuid ();	800	uuid = UUID::gen ();
779		801
780	prev = 0;	802	refcnt_inc ();
781	next = object::first;	803	objects.insert (this);
782		804
783	if (object::first)	805	++create_count;
784	object::first->prev = this;
785		806
786	object::first = this;
787	}	807	}
788		808
789	void object::unlink ()	809	void object::unlink ()
790	{	810	{
791	if (this == object::first)	811	if (!index)
792	object::first = next;
793
794	/* Remove this object from the list of used objects */
795	if (prev) prev->next = next;
796	if (next) next->prev = prev;
797
798	prev = 0;
799	next = 0;
800	}
801
802	object *object::create ()
803	{
804	object *op = new object;
805	op->link ();
806	return op;
807	}
808
809	/*
810	* free_object() frees everything allocated by an object, removes
811	* it from the list of used objects, and puts it on the list of
812	* free objects. The IS_FREED() flag is set in the object.
813	* The object must have been removed by remove_ob() first for
814	* this function to succeed.
815	*
816	* If destroy_inventory is set, free inventory as well. Else drop items in
817	* inventory to the ground.
818	*/
819	void object::destroy (bool destroy_inventory)
820	{
821	if (QUERY_FLAG (this, FLAG_FREED))
822	return;	812	return;
823		813
824	if (QUERY_FLAG (this, FLAG_FRIENDLY))	814	++destroy_count;
825	remove_friendly_object (this);
826		815
827	if (!QUERY_FLAG (this, FLAG_REMOVED))	816	objects.erase (this);
828	remove ();	817	refcnt_dec ();
		818	}
829		819
830	SET_FLAG (this, FLAG_FREED);	820	void
		821	object::activate ()
		822	{
		823	/* If already on active list, don't do anything */
		824	if (active)
		825	return;
831		826
832	if (more)	827	if (has_active_speed ())
833	{
834	more->destroy (destroy_inventory);
835	more = 0;
836	}	828	{
		829	if (flag [FLAG_FREED])
		830	LOG (llevError | logBacktrace, "BUG: tried to activate freed object %s\n", debug_desc ());//D
837		831
		832	actives.insert (this);
		833	}
		834	}
		835
		836	void
		837	object::activate_recursive ()
		838	{
		839	activate ();
		840
		841	for (object *op = inv; op; op = op->below)
		842	op->activate_recursive ();
		843	}
		844
		845	/* This function removes object 'op' from the list of active
		846	* objects.
		847	* This should only be used for style maps or other such
		848	* reference maps where you don't want an object that isn't
		849	* in play chewing up cpu time getting processed.
		850	* The reverse of this is to call update_ob_speed, which
		851	* will do the right thing based on the speed of the object.
		852	*/
		853	void
		854	object::deactivate ()
		855	{
		856	/* If not on the active list, nothing needs to be done */
		857	if (!active)
		858	return;
		859
		860	actives.erase (this);
		861	}
		862
		863	void
		864	object::deactivate_recursive ()
		865	{
		866	for (object *op = inv; op; op = op->below)
		867	op->deactivate_recursive ();
		868
		869	deactivate ();
		870	}
		871
		872	void
		873	object::set_flag_inv (int flag, int value)
		874	{
		875	for (object *op = inv; op; op = op->below)
		876	{
		877	op->flag [flag] = value;
		878	op->set_flag_inv (flag, value);
		879	}
		880	}
		881
		882	/*
		883	* Remove and free all objects in the inventory of the given object.
		884	* object.c ?
		885	*/
		886	void
		887	object::destroy_inv (bool drop_to_ground)
		888	{
		889	// need to check first, because the checks below might segfault
		890	// as we might be on an invalid mapspace and crossfire code
		891	// is too buggy to ensure that the inventory is empty.
		892	// corollary: if you create arrows etc. with stuff in its inventory,
		893	// cf will crash below with off-map x and y
838	if (inv)	894	if (!inv)
839	{	895	return;
		896
840	/* Only if the space blocks everything do we not process -	897	/* Only if the space blocks everything do we not process -
841	* if some form of movement is allowed, let objects	898	* if some form of movement is allowed, let objects
842	* drop on that space.	899	* drop on that space.
843	*/	900	*/
844	if (destroy_inventory || !map || map->in_memory != MAP_IN_MEMORY || GET_MAP_MOVE_BLOCK (map, x, y) == MOVE_ALL)	901	if (!drop_to_ground
		902	|| !map
		903	|| !map->linkable ()
		904	|| map->no_drop
		905	|| ms ().move_block == MOVE_ALL)
		906	{
		907	while (inv)
		908	inv->destroy ();
		909	}
		910	else
		911	{ /* Put objects in inventory onto this space */
		912	while (inv)
845	{	913	{
846	object *op = inv;	914	object *op = inv;
847		915
848	while (op)	916	if (op->flag [FLAG_STARTEQUIP]
849	{	917	|| op->flag [FLAG_NO_DROP]
850	object *tmp = op->below;	918	|| op->type == RUNE
851	op->destroy (destroy_inventory);	919	|| op->type == TRAP
852	op = tmp;	920	|| op->flag [FLAG_IS_A_TEMPLATE]
853	}	921	|| op->flag [FLAG_DESTROY_ON_DEATH])
		922	op->destroy ();
		923	else
		924	map->insert (op, x, y);
854	}	925	}
855	else	926	}
856	{ /* Put objects in inventory onto this space */	927	}
857	object *op = inv;
858		928
859	while (op)	929	/*
860	{	930	* Remove and free all objects in the inventory of the given object.
861	object *tmp = op->below;	931	* Unlike destroy_inv, this assumes the *this is destroyed as well
		932	* well, so we can (and have to!) take shortcuts.
		933	*/
		934	void
		935	object::destroy_inv_fast ()
		936	{
		937	while (object *op = inv)
		938	{
		939	// remove from object the fast way
		940	op->flag [FLAG_REMOVED] = true;
		941	op->env = 0;
		942	if ((inv = inv->below))
		943	inv->above = 0;
862		944
863	op->remove ();	945	// then destroy
864
865	if (QUERY_FLAG (op, FLAG_STARTEQUIP)
866	|| QUERY_FLAG (op, FLAG_NO_DROP) || op->type == RUNE || op->type == TRAP || QUERY_FLAG (op, FLAG_IS_A_TEMPLATE))
867	op->destroy ();	946	op->destroy ();
868	else	947	}
869	{	948	}
870	op->x = x;
871	op->y = y;
872	insert_ob_in_map (op, map, 0, 0); /* Insert in same map as the envir */
873	}
874		949
875	op = tmp;	950	void
876	}	951	object::freelist_free (int count)
877	}	952	{
		953	while (count-- && freelist)
878	}	954	{
		955	freelist_item *next = freelist->next;
		956	// count is being "destroyed"
		957
		958	sfree ((char *)freelist, sizeof (object));
		959
		960	freelist = next;
		961	--free_count;
		962	}
		963	}
		964
		965	object *
		966	object::create ()
		967	{
		968	object *op;
		969
		970	if (freelist)
		971	{
		972	freelist_item li = *freelist;
		973	memset (freelist, 0, sizeof (object));
		974
		975	op = new (freelist) object;
		976	op->count = li.count;
		977
		978	freelist = li.next;
		979	--free_count;
		980	}
		981	else
		982	{
		983	void *ni = salloc0<char> (sizeof (object));
		984
		985	op = new(ni) object;
		986
		987	op->count = ++object_count;
		988	}
		989
		990	op->link ();
		991
		992	return op;
		993	}
		994
		995	void
		996	object::do_delete ()
		997	{
		998	uint32_t count = this->count;
		999
		1000	this->~object ();
		1001
		1002	freelist_item *li = (freelist_item *)this;
		1003	li->next = freelist;
		1004	li->count = count;
		1005
		1006	freelist = li;
		1007	++free_count;
		1008	}
		1009
		1010	void
		1011	object::do_destroy ()
		1012	{
		1013	if (flag [FLAG_IS_LINKED])
		1014	remove_link ();
		1015
		1016	if (flag [FLAG_FRIENDLY])
		1017	remove_friendly_object (this);
		1018
		1019	remove ();
		1020
		1021	attachable::do_destroy ();
		1022
		1023	deactivate ();
		1024	unlink ();
		1025
		1026	flag [FLAG_FREED] = 1;
879		1027
880	// hack to ensure that freed objects still have a valid map	1028	// hack to ensure that freed objects still have a valid map
881	{
882	static maptile *freed_map; // freed objects are moved here to avoid crashes
883
884	if (!freed_map)
885	{
886	freed_map = new maptile;
887
888	freed_map->name = "/internal/freed_objects_map";
889	freed_map->width = 3;
890	freed_map->height = 3;
891
892	freed_map->allocate ();
893	}
894
895	map = freed_map;	1029	map = &freed_map;
896	x = 1;	1030	x = 1;
897	y = 1;	1031	y = 1;
		1032
		1033	if (more)
		1034	{
		1035	more->destroy ();
		1036	more = 0;
898	}	1037	}
899		1038
		1039	head = 0;
		1040
900	// clear those pointers that likely might have circular references to us	1041	// clear those pointers that likely might cause circular references
901	owner = 0;	1042	owner = 0;
902	enemy = 0;	1043	enemy = 0;
903	attacked_by = 0;	1044	attacked_by = 0;
904		1045	current_weapon = 0;
905	// only relevant for players(?), but make sure of it anyways
906	contr = 0;
907
908	/* Remove object from the active list */
909	speed = 0;
910	update_ob_speed (this);
911
912	unlink ();
913
914	mortals.push_back (this);
915	}	1046	}
916		1047
917	/*
918	* sub_weight() recursively (outwards) subtracts a number from the
919	* weight of an object (and what is carried by it's environment(s)).
920	*/
921	void	1048	void
922	sub_weight (object *op, signed long weight)	1049	object::destroy ()
923	{	1050	{
924	while (op != NULL)	1051	if (destroyed ())
925	{	1052	return;
926	if (op->type == CONTAINER)
927	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
928		1053
929	op->carrying -= weight;	1054	if (!is_head () && !head->destroyed ())
930	op = op->env;
931	}	1055	{
		1056	LOG (llevError | logBacktrace, "tried to destroy the tail of an object");
		1057	head->destroy ();
		1058	return;
		1059	}
		1060
		1061	destroy_inv_fast ();
		1062
		1063	if (is_head ())
		1064	if (sound_destroy)
		1065	play_sound (sound_destroy);
		1066	else if (flag [FLAG_MONSTER])
		1067	play_sound (sound_find ("monster_destroy")); // quick hack, too lazy to create a generic mechanism
		1068
		1069	attachable::destroy ();
932	}	1070	}
933		1071
934	/* op->remove ():	1072	/* op->remove ():
935	* This function removes the object op from the linked list of objects	1073	* This function removes the object op from the linked list of objects
936	* which it is currently tied to. When this function is done, the	1074	* which it is currently tied to. When this function is done, the
937	* object will have no environment. If the object previously had an	1075	* object will have no environment. If the object previously had an
938	* environment, the x and y coordinates will be updated to	1076	* environment, the x and y coordinates will be updated to
939	* the previous environment.	1077	* the previous environment.
940	* Beware: This function is called from the editor as well!
941	*/	1078	*/
942	void	1079	void
943	object::remove ()	1080	object::do_remove ()
944	{	1081	{
945	object *tmp, *last = 0;	1082	if (flag [FLAG_REMOVED])
946	object *otmp;
947
948	int check_walk_off;
949
950	if (QUERY_FLAG (this, FLAG_REMOVED))
951	return;	1083	return;
952		1084
953	SET_FLAG (this, FLAG_REMOVED);	1085	INVOKE_OBJECT (REMOVE, this);
		1086
		1087	flag [FLAG_REMOVED] = true;
954		1088
955	if (more)	1089	if (more)
956	more->remove ();	1090	more->remove ();
957		1091
958	/*	1092	/*
959	* In this case, the object to be removed is in someones	1093	* In this case, the object to be removed is in someones
960	* inventory.	1094	* inventory.
961	*/	1095	*/
962	if (env)	1096	if (env)
963	{	1097	{
964	if (nrof)	1098	flag [FLAG_REMOVED] = false; // hack around the issue of visible_to checking flag_removed
965	sub_weight (env, weight * nrof);	1099	if (object *pl = visible_to ())
966	else	1100	esrv_del_item (pl->contr, count);
967	sub_weight (env, weight + carrying);	1101	flag [FLAG_REMOVED] = true; // hack around the issue of visible_to checking flag_removed
968		1102
969	/* NO_FIX_PLAYER is set when a great many changes are being	1103	adjust_weight (env, total_weight (), 0);
970	* made to players inventory. If set, avoiding the call
971	* to save cpu time.
972	*/
973	if ((otmp = in_player ()) && otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
974	otmp->update_stats ();
975		1104
976	if (above != NULL)	1105	object *pl = in_player ();
977	above->below = below;
978	else
979	env->inv = below;
980
981	if (below != NULL)
982	below->above = above;
983		1106
984	/* we set up values so that it could be inserted into	1107	/* we set up values so that it could be inserted into
985	* the map, but we don't actually do that - it is up	1108	* the map, but we don't actually do that - it is up
986	* to the caller to decide what we want to do.	1109	* to the caller to decide what we want to do.
987	*/	1110	*/
988	x = env->x, y = env->y;
989	map = env->map;	1111	map = env->map;
990	above = 0, below = 0;	1112	x = env->x;
991	env = 0;	1113	y = env->y;
992	}
993	else if (map)
994	{
995	/* Re did the following section of code - it looks like it had
996	* lots of logic for things we no longer care about
997	*/
998		1114
999	/* link the object above us */	1115	// make sure cmov optimisation is applicable
1000	if (above)	1116	*(above ? &above->below : &env->inv) = below;
1001	above->below = below;	1117	*(below ? &below->above : &above ) = above; // &above is just a dummy
1002	else
1003	map->at (x, y).top = below; /* we were top, set new top */
1004
1005	/* Relink the object below us, if there is one */
1006	if (below)
1007	below->above = above;
1008	else
1009	{
1010	/* Nothing below, which means we need to relink map object for this space
1011	* use translated coordinates in case some oddness with map tiling is
1012	* evident
1013	*/
1014	if (GET_MAP_OB (map, x, y) != this)
1015	{
1016	char *dump = dump_object (this);
1017	LOG (llevError,
1018	"remove_ob: GET_MAP_OB does not return object to be removed even though it appears to be on the bottom?\n%s\n", dump);
1019	free (dump);
1020	dump = dump_object (GET_MAP_OB (map, x, y));
1021	LOG (llevError, "%s\n", dump);
1022	free (dump);
1023	}
1024
1025	map->at (x, y).bottom = above; /* goes on above it. */
1026	}
1027		1118
1028	above = 0;	1119	above = 0;
1029	below = 0;	1120	below = 0;
		1121	env = 0;
1030		1122
1031	if (map->in_memory == MAP_SAVING)	1123	if (pl && pl->is_player ())
1032	return;
1033
1034	check_walk_off = !QUERY_FLAG (this, FLAG_NO_APPLY);
1035
1036	for (tmp = GET_MAP_OB (map, x, y); tmp; tmp = tmp->above)
1037	{	1124	{
1038	/* No point updating the players look faces if he is the object	1125	if (expect_false (pl->contr->combat_ob == this))
1039	* being removed.
1040	*/
1041
1042	if (tmp->type == PLAYER && tmp != this)
1043	{	1126	{
1044	/* If a container that the player is currently using somehow gets	1127	pl->apply (pl->contr->combat_ob, AP_UNAPPLY | AP_IGNORE_CURSE);
1045	* removed (most likely destroyed), update the player view	1128	pl->contr->combat_ob = 0;
1046	* appropriately.	1129	if (pl->contr->ranged_ob) pl->apply (pl->contr->ranged_ob);
1047	*/
1048	if (tmp->container == this)
1049	{
1050	CLEAR_FLAG (this, FLAG_APPLIED);
1051	tmp->container = 0;
1052	}
1053
1054	tmp->contr->ns->floorbox_update ();
1055	}	1130	}
1056		1131
1057	/* See if player moving off should effect something */	1132	if (expect_false (pl->contr->ranged_ob == this))
1058	if (check_walk_off
1059	&& ((move_type & tmp->move_off)
1060	&& (move_type & ~tmp->move_off & ~tmp->move_block) == 0))
1061	{	1133	{
		1134	pl->apply (pl->contr->ranged_ob, AP_UNAPPLY | AP_IGNORE_CURSE);
		1135	pl->contr->ranged_ob = 0;
		1136	if (pl->contr->combat_ob) pl->apply (pl->contr->combat_ob);
		1137	}
		1138
		1139	pl->contr->queue_stats_update ();
		1140
		1141	if (expect_false (glow_radius) && pl->is_on_map ())
		1142	update_all_los (pl->map, pl->x, pl->y);
		1143	}
		1144	}
		1145	else if (map)
		1146	{
		1147	map->dirty = true;
		1148	mapspace &ms = this->ms ();
		1149
		1150	if (object *pl = ms.player ())
		1151	{
		1152	if (is_player ())
		1153	{
		1154	if (!flag [FLAG_WIZPASS])
		1155	ms.smell = ++mapspace::smellcount; // remember the smell of the player
		1156
		1157	// leaving a spot always closes any open container on the ground
		1158	if (container && !container->env)
		1159	// this causes spurious floorbox updates, but it ensures
		1160	// that the CLOSE event is being sent.
		1161	close_container ();
		1162
		1163	--map->players;
		1164	map->touch ();
		1165	}
		1166	else if (pl->container_ () == this)
		1167	{
		1168	// removing a container should close it
		1169	close_container ();
		1170	}
		1171	else
		1172	esrv_del_item (pl->contr, count);
		1173	}
		1174
		1175	/* link the object above us */
		1176	// re-link, make sure compiler can easily use cmove
		1177	*(above ? &above->below : &ms.top) = below;
		1178	*(below ? &below->above : &ms.bot) = above;
		1179
		1180	above = 0;
		1181	below = 0;
		1182
		1183	ms.invalidate ();
		1184
		1185	int check_walk_off = !flag [FLAG_NO_APPLY];
		1186
		1187	if (object *pl = ms.player ())
		1188	{
		1189	if (pl->container_ () == this)
		1190	/* If a container that the player is currently using somehow gets
		1191	* removed (most likely destroyed), update the player view
		1192	* appropriately.
		1193	*/
		1194	pl->close_container ();
		1195
		1196	//TODO: the floorbox prev/next might need updating
		1197	//esrv_del_item (pl->contr, count);
		1198	//TODO: update floorbox to preserve ordering
		1199	if (pl->contr->ns)
		1200	pl->contr->ns->floorbox_update ();
		1201	}
		1202
		1203	if (check_walk_off)
		1204	for (object *above, *tmp = ms.bot; tmp; tmp = above)
		1205	{
		1206	above = tmp->above;
		1207
		1208	/* No point updating the players look faces if he is the object
		1209	* being removed.
		1210	*/
		1211
		1212	/* See if object moving off should effect something */
		1213	if ((move_type & tmp->move_off)
		1214	&& (move_type & ~tmp->move_off & ~tmp->move_block) == 0)
1062	move_apply (tmp, this, 0);	1215	move_apply (tmp, this, 0);
1063
1064	if (destroyed ())
1065	LOG (llevError, "BUG: remove_ob(): name %s, destroyed leaving object\n", tmp->debug_desc ());
1066	}	1216	}
1067		1217
1068	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */	1218	if (affects_los ())
1069
1070	if (tmp->above == tmp)
1071	tmp->above = 0;
1072
1073	last = tmp;
1074	}
1075
1076	/* last == NULL of there are no objects on this space */
1077	if (!last)
1078	map->at (x, y).flags_ = P_NEED_UPDATE;
1079	else
1080	update_object (last, UP_OBJ_REMOVE);
1081
1082	if (QUERY_FLAG (this, FLAG_BLOCKSVIEW) || glow_radius)
1083	update_all_los (map, x, y);	1219	update_all_los (map, x, y);
1084	}	1220	}
1085	}	1221	}
1086		1222
1087	/*	1223	/*
…		…
1096	merge_ob (object *op, object *top)	1232	merge_ob (object *op, object *top)
1097	{	1233	{
1098	if (!op->nrof)	1234	if (!op->nrof)
1099	return 0;	1235	return 0;
1100		1236
1101	if (top == NULL)	1237	if (!top)
1102	for (top = op; top != NULL && top->above != NULL; top = top->above);	1238	for (top = op; top && top->above; top = top->above)
		1239	;
1103		1240
1104	for (; top != NULL; top = top->below)	1241	for (; top; top = top->below)
1105	{
1106	if (top == op)
1107	continue;
1108
1109	if (object::can_merge (op, top))	1242	if (object::can_merge (op, top))
1110	{	1243	{
1111	top->nrof += op->nrof;	1244	top->nrof += op->nrof;
1112		1245
1113	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/	1246	if (object *pl = top->visible_to ())
1114	op->weight = 0; /* Don't want any adjustements now */	1247	esrv_update_item (UPD_NROF, pl, top);
		1248
		1249	op->weight = 0; // cancel the addition above
		1250	op->carrying = 0; // must be 0 already
		1251
1115	op->destroy ();	1252	op->destroy ();
		1253
1116	return top;	1254	return top;
1117	}	1255	}
1118	}
1119		1256
1120	return 0;	1257	return 0;
1121	}	1258	}
1122		1259
		1260	void
		1261	object::expand_tail ()
		1262	{
		1263	if (more)
		1264	return;
		1265
		1266	object *prev = this;
		1267
		1268	for (archetype *at = (archetype *)arch->more; at; at = (archetype *)at->more)
		1269	{
		1270	object *op = at->instance ();
		1271
		1272	op->name = name;
		1273	op->name_pl = name_pl;
		1274	op->title = title;
		1275
		1276	op->head = this;
		1277	prev->more = op;
		1278
		1279	prev = op;
		1280	}
		1281	}
		1282
1123	/*	1283	/*
1124	* same as insert_ob_in_map except it handle separate coordinates and do a clean	1284	* same as insert_ob_in_map except it handles separate coordinates and does a clean
1125	* job preparing multi-part monsters	1285	* job preparing multi-part monsters.
1126	*/	1286	*/
1127	object *	1287	object *
1128	insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)	1288	insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)
1129	{	1289	{
1130	object *tmp;	1290	op->remove ();
1131		1291
1132	if (op->head)
1133	op = op->head;
1134
1135	for (tmp = op; tmp; tmp = tmp->more)	1292	for (object *tmp = op->head_ (); tmp; tmp = tmp->more)
1136	{	1293	{
1137	tmp->x = x + tmp->arch->clone.x;	1294	tmp->x = x + tmp->arch->x;
1138	tmp->y = y + tmp->arch->clone.y;	1295	tmp->y = y + tmp->arch->y;
1139	}	1296	}
1140		1297
1141	return insert_ob_in_map (op, m, originator, flag);	1298	return insert_ob_in_map (op, m, originator, flag);
1142	}	1299	}
1143		1300
…		…
1156	* Passing 0 for flag gives proper default values, so flag really only needs	1313	* Passing 0 for flag gives proper default values, so flag really only needs
1157	* to be set if special handling is needed.	1314	* to be set if special handling is needed.
1158	*	1315	*
1159	* Return value:	1316	* Return value:
1160	* new object if 'op' was merged with other object	1317	* new object if 'op' was merged with other object
1161	* NULL if 'op' was destroyed	1318	* NULL if there was an error (destroyed, blocked etc.)
1162	* just 'op' otherwise	1319	* just 'op' otherwise
1163	*/	1320	*/
1164
1165	object *	1321	object *
1166	insert_ob_in_map (object *op, maptile *m, object *originator, int flag)	1322	insert_ob_in_map (object *op, maptile *m, object *originator, int flag)
1167	{	1323	{
1168	object *tmp, *top, *floor = NULL;	1324	op->remove ();
1169	sint16 x, y;
1170		1325
1171	if (QUERY_FLAG (op, FLAG_FREED))	1326	if (m == &freed_map)//D TODO: remove soon
1172	{	1327	{//D
1173	LOG (llevError, "Trying to insert freed object!\n");	1328	LOG (llevError | logBacktrace, "tries to insert object on freed objects map: %s", op->debug_desc ());//D
1174	return NULL;
1175	}	1329	}//D
1176
1177	if (m == NULL)
1178	{
1179	char *dump = dump_object (op);
1180	LOG (llevError, "Trying to insert in null-map!\n%s\n", dump);
1181	free (dump);
1182	return op;
1183	}
1184
1185	if (out_of_map (m, op->x, op->y))
1186	{
1187	char *dump = dump_object (op);
1188	LOG (llevError, "Trying to insert object outside the map.\n%s\n", dump);
1189	#ifdef MANY_CORES
1190	/* Better to catch this here, as otherwise the next use of this object
1191	* is likely to cause a crash. Better to find out where it is getting
1192	* improperly inserted.
1193	*/
1194	abort ();
1195	#endif
1196	free (dump);
1197	return op;
1198	}
1199
1200	if (!QUERY_FLAG (op, FLAG_REMOVED))
1201	{
1202	char *dump = dump_object (op);
1203	LOG (llevError, "Trying to insert (map) inserted object.\n%s\n", dump);
1204	free (dump);
1205	return op;
1206	}
1207
1208	if (op->more != NULL)
1209	{
1210	/* The part may be on a different map. */
1211
1212	object *more = op->more;
1213
1214	/* We really need the caller to normalize coordinates - if
1215	* we set the map, that doesn't work if the location is within
1216	* a map and this is straddling an edge. So only if coordinate
1217	* is clear wrong do we normalize it.
1218	*/
1219	if (OUT_OF_REAL_MAP (more->map, more->x, more->y))
1220	more->map = get_map_from_coord (m, &more->x, &more->y);
1221	else if (!more->map)
1222	{
1223	/* For backwards compatibility - when not dealing with tiled maps,
1224	* more->map should always point to the parent.
1225	*/
1226	more->map = m;
1227	}
1228
1229	if (insert_ob_in_map (more, more->map, originator, flag) == NULL)
1230	{
1231	if (!op->head)
1232	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");
1233
1234	return NULL;
1235	}
1236	}
1237
1238	CLEAR_FLAG (op, FLAG_REMOVED);
1239		1330
1240	/* Ideally, the caller figures this out. However, it complicates a lot	1331	/* Ideally, the caller figures this out. However, it complicates a lot
1241	* of areas of callers (eg, anything that uses find_free_spot would now	1332	* of areas of callers (eg, anything that uses find_free_spot would now
1242	* need extra work	1333	* need extra work
1243	*/	1334	*/
1244	op->map = get_map_from_coord (m, &op->x, &op->y);	1335	maptile *newmap = m;
1245	x = op->x;	1336	if (!xy_normalise (newmap, op->x, op->y))
1246	y = op->y;	1337	{
		1338	op->head_ ()->destroy ();// remove head_ once all tail object destroyers found
		1339	return 0;
		1340	}
		1341
		1342	if (object *more = op->more)
		1343	if (!insert_ob_in_map (more, m, originator, flag))
		1344	return 0;
		1345
		1346	op->flag [FLAG_REMOVED] = false;
		1347	op->env = 0;
		1348	op->map = newmap;
		1349
		1350	mapspace &ms = op->ms ();
1247		1351
1248	/* this has to be done after we translate the coordinates.	1352	/* this has to be done after we translate the coordinates.
1249	*/	1353	*/
1250	if (op->nrof && !(flag & INS_NO_MERGE))	1354	if (op->nrof && !(flag & INS_NO_MERGE))
1251	for (tmp = GET_MAP_OB (op->map, x, y); tmp != NULL; tmp = tmp->above)	1355	for (object *tmp = ms.bot; tmp; tmp = tmp->above)
1252	if (object::can_merge (op, tmp))	1356	if (object::can_merge (op, tmp))
1253	{	1357	{
		1358	// TODO: we actually want to update tmp, not op,
		1359	// but some caller surely breaks when we return tmp
		1360	// from here :/
1254	op->nrof += tmp->nrof;	1361	op->nrof += tmp->nrof;
1255	tmp->destroy ();	1362	tmp->destroy ();
1256	}	1363	}
1257		1364
1258	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */	1365	op->clr_flag (FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */
1259	CLEAR_FLAG (op, FLAG_INV_LOCKED);	1366	op->clr_flag (FLAG_INV_LOCKED);
1260		1367
1261	if (!QUERY_FLAG (op, FLAG_ALIVE))	1368	if (!op->flag [FLAG_ALIVE])
1262	CLEAR_FLAG (op, FLAG_NO_STEAL);	1369	op->clr_flag (FLAG_NO_STEAL);
1263		1370
1264	if (flag & INS_BELOW_ORIGINATOR)	1371	if (flag & INS_BELOW_ORIGINATOR)
1265	{	1372	{
1266	if (originator->map != op->map || originator->x != op->x || originator->y != op->y)	1373	if (originator->map != op->map || originator->x != op->x || originator->y != op->y)
1267	{	1374	{
1268	LOG (llevError, "insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");	1375	LOG (llevError, "insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");
1269	abort ();	1376	abort ();
1270	}	1377	}
1271		1378
		1379	if (!originator->is_on_map ())
		1380	{
		1381	LOG (llevError, "insert_ob_in_map(%s) called with INS_BELOW_ORIGINATOR when originator '%s' not on map",
		1382	op->debug_desc (), originator->debug_desc ());
		1383	abort ();
		1384	}
		1385
1272	op->above = originator;	1386	op->above = originator;
1273	op->below = originator->below;	1387	op->below = originator->below;
1274
1275	if (op->below)
1276	op->below->above = op;
1277	else
1278	op->ms ().bottom = op;
1279
1280	/* since *below* originator, no need to update top */
1281	originator->below = op;	1388	originator->below = op;
		1389
		1390	*(op->below ? &op->below->above : &ms.bot) = op;
1282	}	1391	}
1283	else	1392	else
1284	{	1393	{
		1394	object *floor = 0;
		1395	object *top = ms.top;
		1396
1285	/* If there are other objects, then */	1397	/* If there are other objects, then */
1286	if ((!(flag & INS_MAP_LOAD)) && ((top = GET_MAP_OB (op->map, op->x, op->y)) != NULL))	1398	if (top)
1287	{	1399	{
1288	object *last = NULL;
1289
1290	/*	1400	/*
1291	* If there are multiple objects on this space, we do some trickier handling.	1401	* If there are multiple objects on this space, we do some trickier handling.
1292	* We've already dealt with merging if appropriate.	1402	* We've already dealt with merging if appropriate.
1293	* Generally, we want to put the new object on top. But if	1403	* Generally, we want to put the new object on top. But if
1294	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last	1404	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last
…		…
1297	* once we get to them. This reduces the need to traverse over all of	1407	* once we get to them. This reduces the need to traverse over all of
1298	* them when adding another one - this saves quite a bit of cpu time	1408	* them when adding another one - this saves quite a bit of cpu time
1299	* when lots of spells are cast in one area. Currently, it is presumed	1409	* when lots of spells are cast in one area. Currently, it is presumed
1300	* that flying non pickable objects are spell objects.	1410	* that flying non pickable objects are spell objects.
1301	*/	1411	*/
1302		1412	for (object *tmp = ms.bot; tmp; tmp = tmp->above)
1303	while (top != NULL)
1304	{	1413	{
1305	if (QUERY_FLAG (top, FLAG_IS_FLOOR) || QUERY_FLAG (top, FLAG_OVERLAY_FLOOR))	1414	if (tmp->flag [FLAG_IS_FLOOR] || tmp->flag [FLAG_OVERLAY_FLOOR])
1306	floor = top;	1415	floor = tmp;
1307		1416
1308	if (QUERY_FLAG (top, FLAG_NO_PICK) && (top->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (top, FLAG_IS_FLOOR))	1417	if (tmp->flag [FLAG_NO_PICK] && (tmp->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !tmp->flag [FLAG_IS_FLOOR])
1309	{	1418	{
1310	/* We insert above top, so we want this object below this */	1419	/* We insert above top, so we want this object below this */
1311	top = top->below;	1420	top = tmp->below;
1312	break;	1421	break;
1313	}	1422	}
1314		1423
1315	last = top;
1316	top = top->above;	1424	top = tmp;
1317	}	1425	}
1318
1319	/* Don't want top to be NULL, so set it to the last valid object */
1320	top = last;
1321		1426
1322	/* We let update_position deal with figuring out what the space	1427	/* We let update_position deal with figuring out what the space
1323	* looks like instead of lots of conditions here.	1428	* looks like instead of lots of conditions here.
1324	* makes things faster, and effectively the same result.	1429	* makes things faster, and effectively the same result.
1325	*/	1430	*/
1326		1431
1327	/* Have object 'fall below' other objects that block view.	1432	/* Have object 'fall below' other objects that block view.
1328	* Unless those objects are exits, type 66	1433	* Unless those objects are exits.
1329	* If INS_ON_TOP is used, don't do this processing	1434	* If INS_ON_TOP is used, don't do this processing
1330	* Need to find the object that in fact blocks view, otherwise	1435	* Need to find the object that in fact blocks view, otherwise
1331	* stacking is a bit odd.	1436	* stacking is a bit odd.
1332	*/	1437	*/
1333	if (!(flag & INS_ON_TOP) &&	1438	if (!(flag & INS_ON_TOP)
1334	(get_map_flags (op->map, 0, op->x, op->y, 0, 0) & P_BLOCKSVIEW) && (op->face && !op->face->visibility))	1439	&& ms.flags () & P_BLOCKSVIEW
		1440	&& (op->face && !faces [op->face].visibility))
1335	{	1441	{
		1442	object *last;
		1443
1336	for (last = top; last != floor; last = last->below)	1444	for (last = top; last != floor; last = last->below)
1337	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))	1445	if (last->flag [FLAG_BLOCKSVIEW] && (last->type != EXIT))
1338	break;	1446	break;
		1447
1339	/* Check to see if we found the object that blocks view,	1448	/* Check to see if we found the object that blocks view,
1340	* and make sure we have a below pointer for it so that	1449	* and make sure we have a below pointer for it so that
1341	* we can get inserted below this one, which requires we	1450	* we can get inserted below this one, which requires we
1342	* set top to the object below us.	1451	* set top to the object below us.
1343	*/	1452	*/
1344	if (last && last->below && last != floor)	1453	if (last && last->below && last != floor)
1345	top = last->below;	1454	top = last->below;
1346	}	1455	}
1347	} /* If objects on this space */	1456	} /* If objects on this space */
1348		1457
1349	if (flag & INS_MAP_LOAD)
1350	top = GET_MAP_TOP (op->map, op->x, op->y);
1351
1352	if (flag & INS_ABOVE_FLOOR_ONLY)	1458	if (flag & INS_ABOVE_FLOOR_ONLY)
1353	top = floor;	1459	top = floor;
1354		1460
1355	/* Top is the object that our object (op) is going to get inserted above.	1461	// insert object above top, or bottom-most if top = 0
1356	*/
1357
1358	/* First object on this space */
1359	if (!top)	1462	if (!top)
1360	{	1463	{
1361	op->above = GET_MAP_OB (op->map, op->x, op->y);
1362
1363	if (op->above)
1364	op->above->below = op;
1365
1366	op->below = NULL;	1464	op->below = 0;
		1465	op->above = ms.bot;
1367	op->ms ().bottom = op;	1466	ms.bot = op;
		1467
		1468	*(op->above ? &op->above->below : &ms.top) = op;
1368	}	1469	}
1369	else	1470	else
1370	{ /* get inserted into the stack above top */	1471	{
1371	op->above = top->above;	1472	op->above = top->above;
1372
1373	if (op->above)
1374	op->above->below = op;	1473	top->above = op;
1375		1474
1376	op->below = top;	1475	op->below = top;
1377	top->above = op;	1476	*(op->above ? &op->above->below : &ms.top) = op;
1378	}	1477	}
		1478	}
1379		1479
1380	if (op->above == NULL)	1480	if (op->is_player ())
1381	op->ms ().top = op;	1481	{
1382	} /* else not INS_BELOW_ORIGINATOR */
1383
1384	if (op->type == PLAYER)
1385	op->contr->do_los = 1;	1482	op->contr->do_los = 1;
		1483	++op->map->players;
		1484	op->map->touch ();
		1485	}
1386		1486
1387	/* If we have a floor, we know the player, if any, will be above	1487	op->map->dirty = true;
1388	* it, so save a few ticks and start from there.	1488
1389	*/
1390	if (!(flag & INS_MAP_LOAD))
1391	if (object *pl = op->ms ().player ())	1489	if (object *pl = ms.player ())
		1490	//TODO: the floorbox prev/next might need updating
		1491	//esrv_send_item (pl, op);
		1492	//TODO: update floorbox to preserve ordering
		1493	if (pl->contr->ns)
1392	pl->contr->ns->floorbox_update ();	1494	pl->contr->ns->floorbox_update ();
1393		1495
1394	/* If this object glows, it may affect lighting conditions that are	1496	/* If this object glows, it may affect lighting conditions that are
1395	* visible to others on this map. But update_all_los is really	1497	* visible to others on this map. But update_all_los is really
1396	* an inefficient way to do this, as it means los for all players	1498	* an inefficient way to do this, as it means los for all players
1397	* on the map will get recalculated. The players could very well	1499	* on the map will get recalculated. The players could very well
1398	* be far away from this change and not affected in any way -	1500	* be far away from this change and not affected in any way -
1399	* this should get redone to only look for players within range,	1501	* this should get redone to only look for players within range,
1400	* or just updating the P_NEED_UPDATE for spaces within this area	1502	* or just updating the P_UPTODATE for spaces within this area
1401	* of effect may be sufficient.	1503	* of effect may be sufficient.
1402	*/	1504	*/
1403	if (MAP_DARKNESS (op->map) && (op->glow_radius != 0))	1505	if (op->affects_los ())
		1506	{
		1507	op->ms ().invalidate ();
1404	update_all_los (op->map, op->x, op->y);	1508	update_all_los (op->map, op->x, op->y);
		1509	}
1405		1510
1406	/* updates flags (blocked, alive, no magic, etc) for this map space */	1511	/* updates flags (blocked, alive, no magic, etc) for this map space */
1407	update_object (op, UP_OBJ_INSERT);	1512	update_object (op, UP_OBJ_INSERT);
		1513
		1514	INVOKE_OBJECT (INSERT, op);
1408		1515
1409	/* Don't know if moving this to the end will break anything. However,	1516	/* Don't know if moving this to the end will break anything. However,
1410	* we want to have floorbox_update called before calling this.	1517	* we want to have floorbox_update called before calling this.
1411	*	1518	*
1412	* check_move_on() must be after this because code called from	1519	* check_move_on() must be after this because code called from
…		…
1414	* blocked() and wall() work properly), and these flags are updated by	1521	* blocked() and wall() work properly), and these flags are updated by
1415	* update_object().	1522	* update_object().
1416	*/	1523	*/
1417		1524
1418	/* if this is not the head or flag has been passed, don't check walk on status */	1525	/* if this is not the head or flag has been passed, don't check walk on status */
1419	if (!(flag & INS_NO_WALK_ON) && !op->head)	1526	if (!(flag & INS_NO_WALK_ON) && op->is_head ())
1420	{	1527	{
1421	if (check_move_on (op, originator))	1528	if (check_move_on (op, originator, flag))
1422	return NULL;	1529	return 0;
1423		1530
1424	/* If we are a multi part object, lets work our way through the check	1531	/* If we are a multi part object, let's work our way through the check
1425	* walk on's.	1532	* walk on's.
1426	*/	1533	*/
1427	for (tmp = op->more; tmp != NULL; tmp = tmp->more)	1534	for (object *tmp = op->more; tmp; tmp = tmp->more)
1428	if (check_move_on (tmp, originator))	1535	if (check_move_on (tmp, originator, flag))
1429	return NULL;	1536	return 0;
1430	}	1537	}
1431		1538
1432	return op;	1539	return op;
1433	}	1540	}
1434		1541
1435	/* this function inserts an object in the map, but if it	1542	/* this function inserts an object in the map, but if it
1436	* finds an object of its own type, it'll remove that one first.	1543	* finds an object of its own type, it'll remove that one first.
1437	* op is the object to insert it under: supplies x and the map.	1544	* op is the object to insert it under: supplies x and the map.
1438	*/	1545	*/
1439	void	1546	void
1440	replace_insert_ob_in_map (const char *arch_string, object *op)	1547	replace_insert_ob_in_map (shstr_tmp archname, object *op)
1441	{	1548	{
1442	object *tmp, *tmp1;
1443
1444	/* first search for itself and remove any old instances */	1549	/* first search for itself and remove any old instances */
1445		1550
1446	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)	1551	for (object *tmp = op->ms ().bot; tmp; tmp = tmp->above)
1447	if (!strcmp (tmp->arch->name, arch_string)) /* same archetype */	1552	if (tmp->arch->archname == archname) /* same archetype */
1448	tmp->destroy ();	1553	tmp->destroy ();
1449		1554
1450	tmp1 = arch_to_object (archetype::find (arch_string));	1555	object *tmp = archetype::find (archname)->instance ();
1451		1556
1452	tmp1->x = op->x;	1557	tmp->x = op->x;
1453	tmp1->y = op->y;	1558	tmp->y = op->y;
		1559
1454	insert_ob_in_map (tmp1, op->map, op, 0);	1560	insert_ob_in_map (tmp, op->map, op, 0);
1455	}	1561	}
1456
1457	/*
1458	* get_split_ob(ob,nr) splits up ob into two parts. The part which
1459	* is returned contains nr objects, and the remaining parts contains
1460	* the rest (or is removed and freed if that number is 0).
1461	* On failure, NULL is returned, and the reason put into the
1462	* global static errmsg array.
1463	*/
1464		1562
1465	object *	1563	object *
1466	get_split_ob (object *orig_ob, uint32 nr)	1564	object::insert_at (object *where, object *originator, int flags)
1467	{	1565	{
1468	object *newob;	1566	if (where->env)
1469	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);	1567	return where->env->insert (this);
1470		1568	else
1471	if (orig_ob->nrof < nr)	1569	return where->map->insert (this, where->x, where->y, originator, flags);
1472	{
1473	sprintf (errmsg, "There are only %d %ss.", orig_ob->nrof ? orig_ob->nrof : 1, &orig_ob->name);
1474	return NULL;
1475	}
1476
1477	newob = object_create_clone (orig_ob);
1478
1479	if ((orig_ob->nrof -= nr) < 1)
1480	orig_ob->destroy (1);
1481	else if (!is_removed)
1482	{
1483	if (orig_ob->env != NULL)
1484	sub_weight (orig_ob->env, orig_ob->weight * nr);
1485	if (orig_ob->env == NULL && orig_ob->map->in_memory != MAP_IN_MEMORY)
1486	{
1487	strcpy (errmsg, "Tried to split object whose map is not in memory.");
1488	LOG (llevDebug, "Error, Tried to split object whose map is not in memory.\n");
1489	return NULL;
1490	}
1491	}
1492
1493	newob->nrof = nr;
1494
1495	return newob;
1496	}	1570	}
1497		1571
		1572	// check whether we can put this into the map, respect max_volume, max_items
		1573	bool
		1574	object::can_drop_at (maptile *m, int x, int y, object *originator)
		1575	{
		1576	mapspace &ms = m->at (x, y);
		1577
		1578	int items = ms.items ();
		1579
		1580	if (!items // testing !items ensures we can drop at least one item
		1581	|| (items < m->max_items
		1582	&& ms.volume () < m->max_volume))
		1583	return true;
		1584
		1585	if (originator && originator->is_player ())
		1586	originator->contr->failmsgf (
		1587	"No matter how hard you try, you just cannot put the %s here H<Try to remove some items from the floor first.>",
		1588	query_name ()
		1589	);
		1590
		1591	return false;
		1592	}
		1593
1498	/*	1594	/*
1499	* decrease_ob_nr(object, number) decreases a specified number from	1595	* decrease(object, number) decreases a specified number from
1500	* the amount of an object. If the amount reaches 0, the object	1596	* the amount of an object. If the amount reaches 0, the object
1501	* is subsequently removed and freed.	1597	* is subsequently removed and freed.
1502	*	1598	*
1503	* Return value: 'op' if something is left, NULL if the amount reached 0	1599	* Return value: 'op' if something is left, NULL if the amount reached 0
1504	*/	1600	*/
		1601	bool
		1602	object::decrease (sint32 nr)
		1603	{
		1604	if (!nr)
		1605	return true;
1505		1606
		1607	nr = min (nr, nrof);
		1608
		1609	if (nrof > nr)
		1610	{
		1611	sint64 oweight = total_weight ();
		1612
		1613	nrof -= nr;
		1614
		1615	if (object *pl = visible_to ())
		1616	esrv_update_item (UPD_NROF, pl, this);
		1617
		1618	adjust_weight (env, oweight, total_weight ());
		1619
		1620	return true;
		1621	}
		1622	else
		1623	{
		1624	destroy ();
		1625	return false;
		1626	}
		1627	}
		1628
		1629	/*
		1630	* split(ob,nr) splits up ob into two parts. The part which
		1631	* is returned contains nr objects, and the remaining parts contains
		1632	* the rest (or is removed and returned if that number is 0).
		1633	* On failure, NULL is returned.
		1634	*/
1506	object *	1635	object *
1507	decrease_ob_nr (object *op, uint32 i)	1636	object::split (sint32 nr)
1508	{	1637	{
1509	object *tmp;	1638	int have = number_of ();
1510		1639
1511	if (i == 0) /* objects with op->nrof require this check */	1640	if (have < nr)
1512	return op;	1641	return 0;
1513		1642	else if (have == nr)
1514	if (i > op->nrof)
1515	i = op->nrof;
1516
1517	if (QUERY_FLAG (op, FLAG_REMOVED))
1518	op->nrof -= i;
1519	else if (op->env)
1520	{	1643	{
1521	/* is this object in the players inventory, or sub container
1522	* therein?
1523	*/
1524	tmp = op->in_player ();
1525	/* nope. Is this a container the player has opened?
1526	* If so, set tmp to that player.
1527	* IMO, searching through all the players will mostly
1528	* likely be quicker than following op->env to the map,
1529	* and then searching the map for a player.
1530	*/
1531	if (!tmp)
1532	for_all_players (pl)
1533	if (pl->ob->container == op->env)
1534	{
1535	tmp = pl->ob;
1536	break;
1537	}
1538
1539	if (i < op->nrof)
1540	{
1541	sub_weight (op->env, op->weight * i);
1542	op->nrof -= i;
1543	if (tmp)
1544	esrv_send_item (tmp, op);
1545	}
1546	else
1547	{
1548	op->remove ();	1644	remove ();
1549	op->nrof = 0;	1645	return this;
1550	if (tmp)
1551	esrv_del_item (tmp->contr, op->count);
1552	}
1553	}	1646	}
1554	else	1647	else
1555	{	1648	{
1556	object *above = op->above;	1649	decrease (nr);
1557		1650
1558	if (i < op->nrof)	1651	object *op = deep_clone ();
1559	op->nrof -= i;	1652	op->nrof = nr;
1560	else
1561	{
1562	op->remove ();
1563	op->nrof = 0;
1564	}
1565
1566	/* Since we just removed op, op->above is null */
1567	for (tmp = above; tmp; tmp = tmp->above)
1568	if (tmp->type == PLAYER)
1569	{
1570	if (op->nrof)
1571	esrv_send_item (tmp, op);
1572	else
1573	esrv_del_item (tmp->contr, op->count);
1574	}
1575	}
1576
1577	if (op->nrof)
1578	return op;	1653	return op;
1579	else
1580	{
1581	op->destroy ();
1582	return 0;
1583	}
1584	}
1585
1586	/*
1587	* add_weight(object, weight) adds the specified weight to an object,
1588	* and also updates how much the environment(s) is/are carrying.
1589	*/
1590
1591	void
1592	add_weight (object *op, signed long weight)
1593	{
1594	while (op != NULL)
1595	{
1596	if (op->type == CONTAINER)
1597	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1598
1599	op->carrying += weight;
1600	op = op->env;
1601	}	1654	}
1602	}	1655	}
1603		1656
1604	object *	1657	object *
1605	insert_ob_in_ob (object *op, object *where)	1658	insert_ob_in_ob (object *op, object *where)
…		…
1610	LOG (llevError, "Trying to put object in NULL.\n%s\n", dump);	1663	LOG (llevError, "Trying to put object in NULL.\n%s\n", dump);
1611	free (dump);	1664	free (dump);
1612	return op;	1665	return op;
1613	}	1666	}
1614		1667
1615	if (where->head)	1668	if (where->head_ () != where)
1616	{	1669	{
1617	LOG (llevDebug, "Warning: Tried to insert object into wrong part of multipart object.\n");	1670	LOG (llevError | logBacktrace, "Warning: Tried to insert object into wrong part of multipart object.\n");
1618	where = where->head;	1671	where = where->head;
1619	}	1672	}
1620		1673
1621	return where->insert (op);	1674	return where->insert (op);
1622	}	1675	}
…		…
1627	* inside the object environment.	1680	* inside the object environment.
1628	*	1681	*
1629	* The function returns now pointer to inserted item, and return value can	1682	* The function returns now pointer to inserted item, and return value can
1630	* be != op, if items are merged. -Tero	1683	* be != op, if items are merged. -Tero
1631	*/	1684	*/
1632
1633	object *	1685	object *
1634	object::insert (object *op)	1686	object::insert (object *op)
1635	{	1687	{
1636	object *tmp, *otmp;
1637
1638	if (!QUERY_FLAG (op, FLAG_REMOVED))
1639	op->remove ();
1640
1641	if (op->more)	1688	if (op->more)
1642	{	1689	{
1643	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);	1690	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);
1644	return op;	1691	return op;
1645	}	1692	}
1646		1693
1647	CLEAR_FLAG (op, FLAG_OBJ_ORIGINAL);	1694	op->remove ();
1648	CLEAR_FLAG (op, FLAG_REMOVED);	1695
		1696	op->flag [FLAG_OBJ_ORIGINAL] = 0;
		1697
1649	if (op->nrof)	1698	if (op->nrof)
1650	{
1651	for (tmp = inv; tmp != NULL; tmp = tmp->below)	1699	for (object *tmp = inv; tmp; tmp = tmp->below)
1652	if (object::can_merge (tmp, op))	1700	if (object::can_merge (tmp, op))
1653	{	1701	{
1654	/* return the original object and remove inserted object	1702	/* return the original object and remove inserted object
1655	(client needs the original object) */	1703	(client prefers the original object) */
		1704
		1705	// carring must be 0 for mergable objects
		1706	sint64 oweight = tmp->weight * tmp->nrof;
		1707
1656	tmp->nrof += op->nrof;	1708	tmp->nrof += op->nrof;
1657	/* Weight handling gets pretty funky. Since we are adding to	1709
1658	* tmp->nrof, we need to increase the weight.	1710	if (object *pl = tmp->visible_to ())
1659	*/	1711	esrv_update_item (UPD_NROF, pl, tmp);
		1712
1660	add_weight (this, op->weight * op->nrof);	1713	adjust_weight (this, oweight, tmp->weight * tmp->nrof);
1661	SET_FLAG (op, FLAG_REMOVED);	1714
1662	op->destroy (); /* free the inserted object */	1715	op->destroy ();
1663	op = tmp;	1716	op = tmp;
1664	op->remove (); /* and fix old object's links */	1717	goto inserted;
1665	CLEAR_FLAG (op, FLAG_REMOVED);
1666	break;
1667	}	1718	}
1668		1719
1669	/* I assume combined objects have no inventory	1720	op->owner = 0; // it's his/hers now. period.
1670	* We add the weight - this object could have just been removed
1671	* (if it was possible to merge). calling remove_ob will subtract
1672	* the weight, so we need to add it in again, since we actually do
1673	* the linking below
1674	*/
1675	add_weight (this, op->weight * op->nrof);
1676	}
1677	else
1678	add_weight (this, (op->weight + op->carrying));
1679
1680	otmp = this->in_player ();
1681	if (otmp && otmp->contr)
1682	if (!QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1683	otmp->update_stats ();
1684
1685	op->map = 0;	1721	op->map = 0;
1686	op->env = this;	1722	op->x = 0;
		1723	op->y = 0;
		1724
1687	op->above = 0;	1725	op->above = 0;
1688	op->below = 0;	1726	op->below = inv;
1689	op->x = 0, op->y = 0;	1727	op->env = this;
1690		1728
		1729	if (inv)
		1730	inv->above = op;
		1731
		1732	inv = op;
		1733
		1734	op->flag [FLAG_REMOVED] = 0;
		1735
		1736	if (object *pl = op->visible_to ())
		1737	esrv_send_item (pl, op);
		1738
		1739	adjust_weight (this, 0, op->total_weight ());
		1740
		1741	inserted:
1691	/* reset the light list and los of the players on the map */	1742	/* reset the light list and los of the players on the map */
1692	if ((op->glow_radius != 0) && map)	1743	if (op->glow_radius && is_on_map ())
1693	{	1744	{
1694	#ifdef DEBUG_LIGHTS	1745	update_stats ();
1695	LOG (llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n", op->name);
1696	#endif /* DEBUG_LIGHTS */
1697	if (MAP_DARKNESS (map))
1698	update_all_los (map, x, y);	1746	update_all_los (map, x, y);
1699	}
1700
1701	/* Client has no idea of ordering so lets not bother ordering it here.
1702	* It sure simplifies this function...
1703	*/
1704	if (!inv)
1705	inv = op;
1706	else
1707	{	1747	}
1708	op->below = inv;	1748	else if (is_player ())
1709	op->below->above = op;	1749	// if this is a player's inventory, update stats
1710	inv = op;	1750	contr->queue_stats_update ();
1711	}	1751
		1752	INVOKE_OBJECT (INSERT, this);
1712		1753
1713	return op;	1754	return op;
1714	}	1755	}
1715		1756
1716	/*	1757	/*
…		…
1731	*	1772	*
1732	* MSW 2001-07-08: Check all objects on space, not just those below	1773	* MSW 2001-07-08: Check all objects on space, not just those below
1733	* object being inserted. insert_ob_in_map may not put new objects	1774	* object being inserted. insert_ob_in_map may not put new objects
1734	* on top.	1775	* on top.
1735	*/	1776	*/
1736
1737	int	1777	int
1738	check_move_on (object *op, object *originator)	1778	check_move_on (object *op, object *originator, int flags)
1739	{	1779	{
		1780	if (op->flag [FLAG_NO_APPLY])
		1781	return 0;
		1782
1740	object *tmp;	1783	object *tmp;
1741	maptile *m = op->map;	1784	maptile *m = op->map;
1742	int x = op->x, y = op->y;	1785	int x = op->x, y = op->y;
1743		1786
1744	MoveType move_on, move_slow, move_block;	1787	mapspace &ms = m->at (x, y);
1745		1788
1746	if (QUERY_FLAG (op, FLAG_NO_APPLY))	1789	ms.update ();
1747	return 0;
1748		1790
1749	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);	1791	MoveType move_on = ms.move_on;
1750	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);	1792	MoveType move_slow = ms.move_slow;
1751	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);	1793	MoveType move_block = ms.move_block;
1752		1794
1753	/* if nothing on this space will slow op down or be applied,	1795	/* if nothing on this space will slow op down or be applied,
1754	* no need to do checking below. have to make sure move_type	1796	* no need to do checking below. have to make sure move_type
1755	* is set, as lots of objects don't have it set - we treat that	1797	* is set, as lots of objects don't have it set - we treat that
1756	* as walking.	1798	* as walking.
…		…
1767	return 0;	1809	return 0;
1768		1810
1769	/* The objects have to be checked from top to bottom.	1811	/* The objects have to be checked from top to bottom.
1770	* Hence, we first go to the top:	1812	* Hence, we first go to the top:
1771	*/	1813	*/
1772		1814	for (object *next, *tmp = ms.top; tmp; tmp = next)
1773	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL && tmp->above != NULL; tmp = tmp->above)
1774	{
1775	/* Trim the search when we find the first other spell effect
1776	* this helps performance so that if a space has 50 spell objects,
1777	* we don't need to check all of them.
1778	*/
1779	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG (tmp, FLAG_NO_PICK))
1780	break;
1781	}	1815	{
		1816	next = tmp->below;
1782		1817
1783	for (; tmp; tmp = tmp->below)
1784	{
1785	if (tmp == op)	1818	if (tmp == op)
1786	continue; /* Can't apply yourself */	1819	continue; /* Can't apply yourself */
1787		1820
1788	/* Check to see if one of the movement types should be slowed down.	1821	/* Check to see if one of the movement types should be slowed down.
1789	* Second check makes sure that the movement types not being slowed	1822	* Second check makes sure that the movement types not being slowed
1790	* (~slow_move) is not blocked on this space - just because the	1823	* (~slow_move) is not blocked on this space - just because the
1791	* space doesn't slow down swimming (for example), if you can't actually	1824	* space doesn't slow down swimming (for example), if you can't actually
1792	* swim on that space, can't use it to avoid the penalty.	1825	* swim on that space, can't use it to avoid the penalty.
1793	*/	1826	*/
1794	if (!QUERY_FLAG (op, FLAG_WIZPASS))	1827	if (!op->flag [FLAG_WIZPASS])
1795	{	1828	{
1796	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||	1829	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||
1797	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))	1830	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))
1798	{	1831	{
1799
1800	float
1801	diff = tmp->move_slow_penalty * FABS (op->speed);	1832	float diff = tmp->move_slow_penalty * fabs (op->speed);
1802		1833
1803	if (op->type == PLAYER)	1834	if (op->is_player ())
1804	if ((QUERY_FLAG (tmp, FLAG_IS_HILLY) && find_skill_by_number (op, SK_CLIMBING)) ||	1835	if ((tmp->flag [FLAG_IS_HILLY ] && find_skill_by_number (op, SK_CLIMBING)) ||
1805	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))	1836	(tmp->flag [FLAG_IS_WOODED] && find_skill_by_number (op, SK_WOODSMAN)))
1806	diff /= 4.0;	1837	diff /= 4.0;
1807		1838
1808	op->speed_left -= diff;	1839	op->speed_left -= diff;
1809	}	1840	}
1810	}	1841	}
1811		1842
1812	/* Basically same logic as above, except now for actual apply. */	1843	/* Basically same logic as above, except now for actual apply. */
1813	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||	1844	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||
1814	((op->move_type & tmp->move_on) && (op->move_type & ~tmp->move_on & ~tmp->move_block) == 0))	1845	((op->move_type & tmp->move_on) && (op->move_type & ~tmp->move_on & ~tmp->move_block) == 0))
1815	{	1846	{
		1847	if ((flags & INS_NO_AUTO_EXIT)
		1848	&& (tmp->type == EXIT || tmp->type == TELEPORTER
		1849	|| tmp->type == HOLE || tmp->type == TRAPDOOR)) //TODO: temporary, fix exits instead
		1850	continue;
		1851
1816	move_apply (tmp, op, originator);	1852	move_apply (tmp, op, originator);
1817		1853
1818	if (op->destroyed ())	1854	if (op->destroyed ())
1819	return 1;	1855	return 1;
1820		1856
…		…
1833	/*	1869	/*
1834	* present_arch(arch, map, x, y) searches for any objects with	1870	* present_arch(arch, map, x, y) searches for any objects with
1835	* a matching archetype at the given map and coordinates.	1871	* a matching archetype at the given map and coordinates.
1836	* The first matching object is returned, or NULL if none.	1872	* The first matching object is returned, or NULL if none.
1837	*/	1873	*/
1838
1839	object *	1874	object *
1840	present_arch (const archetype *at, maptile *m, int x, int y)	1875	present_arch (const archetype *at, maptile *m, int x, int y)
1841	{	1876	{
1842	object *
1843	tmp;
1844
1845	if (m == NULL || out_of_map (m, x, y))	1877	if (!m || out_of_map (m, x, y))
1846	{	1878	{
1847	LOG (llevError, "Present_arch called outside map.\n");	1879	LOG (llevError, "Present_arch called outside map.\n");
1848	return NULL;	1880	return NULL;
1849	}	1881	}
1850	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)	1882
1851	if (tmp->arch == at)	1883	for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)
		1884	if (tmp->arch->archname == at->archname)
1852	return tmp;	1885	return tmp;
		1886
1853	return NULL;	1887	return NULL;
1854	}	1888	}
1855		1889
1856	/*	1890	/*
1857	* present(type, map, x, y) searches for any objects with	1891	* present(type, map, x, y) searches for any objects with
1858	* a matching type variable at the given map and coordinates.	1892	* a matching type variable at the given map and coordinates.
1859	* The first matching object is returned, or NULL if none.	1893	* The first matching object is returned, or NULL if none.
1860	*/	1894	*/
1861
1862	object *	1895	object *
1863	present (unsigned char type, maptile *m, int x, int y)	1896	present (unsigned char type, maptile *m, int x, int y)
1864	{	1897	{
1865	object *
1866	tmp;
1867
1868	if (out_of_map (m, x, y))	1898	if (out_of_map (m, x, y))
1869	{	1899	{
1870	LOG (llevError, "Present called outside map.\n");	1900	LOG (llevError, "Present called outside map.\n");
1871	return NULL;	1901	return NULL;
1872	}	1902	}
1873	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)	1903
		1904	for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)
1874	if (tmp->type == type)	1905	if (tmp->type == type)
1875	return tmp;	1906	return tmp;
		1907
1876	return NULL;	1908	return NULL;
1877	}	1909	}
1878		1910
1879	/*	1911	/*
1880	* present_in_ob(type, object) searches for any objects with	1912	* present_in_ob(type, object) searches for any objects with
1881	* a matching type variable in the inventory of the given object.	1913	* a matching type variable in the inventory of the given object.
1882	* The first matching object is returned, or NULL if none.	1914	* The first matching object is returned, or NULL if none.
1883	*/	1915	*/
1884
1885	object *	1916	object *
1886	present_in_ob (unsigned char type, const object *op)	1917	present_in_ob (unsigned char type, const object *op)
1887	{	1918	{
1888	object *
1889	tmp;
1890
1891	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1919	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
1892	if (tmp->type == type)	1920	if (tmp->type == type)
1893	return tmp;	1921	return tmp;
		1922
1894	return NULL;	1923	return NULL;
1895	}	1924	}
1896		1925
1897	/*	1926	/*
1898	* present_in_ob (type, str, object) searches for any objects with	1927	* present_in_ob (type, str, object) searches for any objects with
…		…
1906	* str is the string to match against. Note that we match against	1935	* str is the string to match against. Note that we match against
1907	* the object name, not the archetype name. this is so that the	1936	* the object name, not the archetype name. this is so that the
1908	* spell code can use one object type (force), but change it's name	1937	* spell code can use one object type (force), but change it's name
1909	* to be unique.	1938	* to be unique.
1910	*/	1939	*/
1911
1912	object *	1940	object *
1913	present_in_ob_by_name (int type, const char *str, const object *op)	1941	present_in_ob_by_name (int type, const char *str, const object *op)
1914	{	1942	{
1915	object *
1916	tmp;
1917
1918	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1943	for (object *tmp = op->inv; tmp; tmp = tmp->below)
1919	{
1920	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))	1944	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))
1921	return tmp;	1945	return tmp;
1922	}	1946
1923	return NULL;	1947	return 0;
1924	}	1948	}
1925		1949
1926	/*	1950	/*
1927	* present_arch_in_ob(archetype, object) searches for any objects with	1951	* present_arch_in_ob(archetype, object) searches for any objects with
1928	* a matching archetype in the inventory of the given object.	1952	* a matching archetype in the inventory of the given object.
1929	* The first matching object is returned, or NULL if none.	1953	* The first matching object is returned, or NULL if none.
1930	*/	1954	*/
1931
1932	object *	1955	object *
1933	present_arch_in_ob (const archetype *at, const object *op)	1956	present_arch_in_ob (const archetype *at, const object *op)
1934	{	1957	{
1935	object *
1936	tmp;
1937
1938	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1958	for (object *tmp = op->inv; tmp; tmp = tmp->below)
1939	if (tmp->arch == at)	1959	if (tmp->arch->archname == at->archname)
1940	return tmp;	1960	return tmp;
		1961
1941	return NULL;	1962	return NULL;
1942	}	1963	}
1943		1964
1944	/*	1965	/*
1945	* activate recursively a flag on an object inventory	1966	* activate recursively a flag on an object inventory
1946	*/	1967	*/
1947	void	1968	void
1948	flag_inv (object *op, int flag)	1969	flag_inv (object *op, int flag)
1949	{	1970	{
1950	object *
1951	tmp;
1952
1953	if (op->inv)
1954	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1971	for (object *tmp = op->inv; tmp; tmp = tmp->below)
1955	{	1972	{
1956	SET_FLAG (tmp, flag);	1973	tmp->set_flag (flag);
1957	flag_inv (tmp, flag);	1974	flag_inv (tmp, flag);
1958	}	1975	}
1959	} /*	1976	}
		1977
		1978	/*
1960	* desactivate recursively a flag on an object inventory	1979	* deactivate recursively a flag on an object inventory
1961	*/	1980	*/
1962	void	1981	void
1963	unflag_inv (object *op, int flag)	1982	unflag_inv (object *op, int flag)
1964	{	1983	{
1965	object *
1966	tmp;
1967
1968	if (op->inv)
1969	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1984	for (object *tmp = op->inv; tmp; tmp = tmp->below)
1970	{	1985	{
1971	CLEAR_FLAG (tmp, flag);	1986	tmp->clr_flag (flag);
1972	unflag_inv (tmp, flag);	1987	unflag_inv (tmp, flag);
1973	}	1988	}
1974	}
1975
1976	/*
1977	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in
1978	* all it's inventory (recursively).
1979	* If checksums are used, a player will get set_cheat called for
1980	* him/her-self and all object carried by a call to this function.
1981	*/
1982
1983	void
1984	set_cheat (object *op)
1985	{
1986	SET_FLAG (op, FLAG_WAS_WIZ);
1987	flag_inv (op, FLAG_WAS_WIZ);
1988	}	1989	}
1989		1990
1990	/*	1991	/*
1991	* find_free_spot(object, map, x, y, start, stop) will search for	1992	* find_free_spot(object, map, x, y, start, stop) will search for
1992	* a spot at the given map and coordinates which will be able to contain	1993	* a spot at the given map and coordinates which will be able to contain
…		…
1994	* to search (see the freearr_x/y[] definition).	1995	* to search (see the freearr_x/y[] definition).
1995	* It returns a random choice among the alternatives found.	1996	* It returns a random choice among the alternatives found.
1996	* start and stop are where to start relative to the free_arr array (1,9	1997	* start and stop are where to start relative to the free_arr array (1,9
1997	* does all 4 immediate directions). This returns the index into the	1998	* does all 4 immediate directions). This returns the index into the
1998	* array of the free spot, -1 if no spot available (dir 0 = x,y)	1999	* array of the free spot, -1 if no spot available (dir 0 = x,y)
1999	* Note - this only checks to see if there is space for the head of the
2000	* object - if it is a multispace object, this should be called for all
2001	* pieces.
2002	* Note2: This function does correctly handle tiled maps, but does not	2000	* Note: This function does correctly handle tiled maps, but does not
2003	* inform the caller. However, insert_ob_in_map will update as	2001	* inform the caller. However, insert_ob_in_map will update as
2004	* necessary, so the caller shouldn't need to do any special work.	2002	* necessary, so the caller shouldn't need to do any special work.
2005	* Note - updated to take an object instead of archetype - this is necessary	2003	* Note - updated to take an object instead of archetype - this is necessary
2006	* because arch_blocked (now ob_blocked) needs to know the movement type	2004	* because arch_blocked (now ob_blocked) needs to know the movement type
2007	* to know if the space in question will block the object. We can't use	2005	* to know if the space in question will block the object. We can't use
2008	* the archetype because that isn't correct if the monster has been	2006	* the archetype because that isn't correct if the monster has been
2009	* customized, changed states, etc.	2007	* customized, changed states, etc.
2010	*/	2008	*/
2011
2012	int	2009	int
2013	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)	2010	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)
2014	{	2011	{
2015	int
2016	i,
2017	index = 0, flag;
2018	static int
2019	altern[SIZEOFFREE];	2012	int altern[SIZEOFFREE];
		2013	int index = 0;
2020		2014
2021	for (i = start; i < stop; i++)	2015	for (int i = start; i < stop; i++)
2022	{	2016	{
2023	flag = ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]);	2017	mapxy pos (m, x, y); pos.move (i);
2024	if (!flag)	2018
		2019	if (!pos.normalise ())
		2020	continue;
		2021
		2022	mapspace &ms = *pos;
		2023
		2024	if (ms.flags () & P_IS_ALIVE)
		2025	continue;
		2026
		2027	/* However, often
		2028	* ob doesn't have any move type (when used to place exits)
		2029	* so the AND operation in OB_TYPE_MOVE_BLOCK doesn't work.
		2030	*/
		2031	if (ob && ob->move_type == 0 && ms.move_block != MOVE_ALL)
		2032	{
2025	altern[index++] = i;	2033	altern [index++] = i;
		2034	continue;
		2035	}
2026		2036
2027	/* Basically, if we find a wall on a space, we cut down the search size.	2037	/* Basically, if we find a wall on a space, we cut down the search size.
2028	* In this way, we won't return spaces that are on another side of a wall.	2038	* In this way, we won't return spaces that are on another side of a wall.
2029	* This mostly work, but it cuts down the search size in all directions -	2039	* This mostly work, but it cuts down the search size in all directions -
2030	* if the space being examined only has a wall to the north and empty	2040	* if the space being examined only has a wall to the north and empty
2031	* spaces in all the other directions, this will reduce the search space	2041	* spaces in all the other directions, this will reduce the search space
2032	* to only the spaces immediately surrounding the target area, and	2042	* to only the spaces immediately surrounding the target area, and
2033	* won't look 2 spaces south of the target space.	2043	* won't look 2 spaces south of the target space.
2034	*/	2044	*/
2035	else if ((flag & P_NO_PASS) && maxfree[i] < stop)	2045	if (ms.move_block == MOVE_ALL && maxfree[i] < stop)
		2046	{
2036	stop = maxfree[i];	2047	stop = maxfree[i];
		2048	continue;
		2049	}
		2050
		2051	/* Note it is intentional that we check ob - the movement type of the
		2052	* head of the object should correspond for the entire object.
		2053	*/
		2054	if (OB_TYPE_MOVE_BLOCK (ob, ms.move_block))
		2055	continue;
		2056
		2057	if (ob->blocked (pos.m, pos.x, pos.y))
		2058	continue;
		2059
		2060	altern [index++] = i;
2037	}	2061	}
2038		2062
2039	if (!index)	2063	if (!index)
2040	return -1;	2064	return -1;
2041		2065
2042	return altern[RANDOM () % index];	2066	return altern [rndm (index)];
2043	}	2067	}
2044		2068
2045	/*	2069	/*
2046	* find_first_free_spot(archetype, maptile, x, y) works like	2070	* find_first_free_spot(archetype, maptile, x, y) works like
2047	* find_free_spot(), but it will search max number of squares.	2071	* find_free_spot(), but it will search max number of squares.
2048	* But it will return the first available spot, not a random choice.	2072	* But it will return the first available spot, not a random choice.
2049	* Changed 0.93.2: Have it return -1 if there is no free spot available.	2073	* Changed 0.93.2: Have it return -1 if there is no free spot available.
2050	*/	2074	*/
2051
2052	int	2075	int
2053	find_first_free_spot (const object *ob, maptile *m, int x, int y)	2076	find_first_free_spot (const object *ob, maptile *m, int x, int y)
2054	{	2077	{
2055	int
2056	i;
2057
2058	for (i = 0; i < SIZEOFFREE; i++)	2078	for (int i = 0; i < SIZEOFFREE; i++)
2059	{
2060	if (!ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]))	2079	if (!ob->blocked (m, x + freearr_x[i], y + freearr_y[i]))
2061	return i;	2080	return i;
2062	}	2081
2063	return -1;	2082	return -1;
2064	}	2083	}
2065		2084
2066	/*	2085	/*
2067	* The function permute(arr, begin, end) randomly reorders the array	2086	* The function permute(arr, begin, end) randomly reorders the array
2068	* arr[begin..end-1].	2087	* arr[begin..end-1].
		2088	* now uses a fisher-yates shuffle, old permute was broken
2069	*/	2089	*/
2070	static void	2090	static void
2071	permute (int *arr, int begin, int end)	2091	permute (int *arr, int begin, int end)
2072	{	2092	{
2073	int	2093	arr += begin;
2074	i,
2075	j,
2076	tmp,
2077	len;
2078
2079	len = end - begin;	2094	end -= begin;
2080	for (i = begin; i < end; i++)
2081	{
2082	j = begin + RANDOM () % len;
2083		2095
2084	tmp = arr[i];	2096	while (--end)
2085	arr[i] = arr[j];	2097	swap (arr [end], arr [rndm (end + 1)]);
2086	arr[j] = tmp;
2087	}
2088	}	2098	}
2089		2099
2090	/* new function to make monster searching more efficient, and effective!	2100	/* new function to make monster searching more efficient, and effective!
2091	* This basically returns a randomized array (in the passed pointer) of	2101	* This basically returns a randomized array (in the passed pointer) of
2092	* the spaces to find monsters. In this way, it won't always look for	2102	* the spaces to find monsters. In this way, it won't always look for
…		…
2095	* the 3x3 area will be searched, just not in a predictable order.	2105	* the 3x3 area will be searched, just not in a predictable order.
2096	*/	2106	*/
2097	void	2107	void
2098	get_search_arr (int *search_arr)	2108	get_search_arr (int *search_arr)
2099	{	2109	{
2100	int	2110	int i;
2101	i;
2102		2111
2103	for (i = 0; i < SIZEOFFREE; i++)	2112	for (i = 0; i < SIZEOFFREE; i++)
2104	{
2105	search_arr[i] = i;	2113	search_arr[i] = i;
2106	}
2107		2114
2108	permute (search_arr, 1, SIZEOFFREE1 + 1);	2115	permute (search_arr, 1, SIZEOFFREE1 + 1);
2109	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);	2116	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);
2110	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);	2117	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);
2111	}	2118	}
…		…
2120	* Perhaps incorrectly, but I'm making the assumption that exclude	2127	* Perhaps incorrectly, but I'm making the assumption that exclude
2121	* is actually want is going to try and move there. We need this info	2128	* is actually want is going to try and move there. We need this info
2122	* because we have to know what movement the thing looking to move	2129	* because we have to know what movement the thing looking to move
2123	* there is capable of.	2130	* there is capable of.
2124	*/	2131	*/
2125
2126	int	2132	int
2127	find_dir (maptile *m, int x, int y, object *exclude)	2133	find_dir (maptile *m, int x, int y, object *exclude)
2128	{	2134	{
2129	int
2130	i,
2131	max = SIZEOFFREE, mflags;	2135	int max = SIZEOFFREE;
2132
2133	sint16 nx, ny;
2134	object *
2135	tmp;
2136	maptile *
2137	mp;
2138
2139	MoveType blocked, move_type;	2136	MoveType move_type;
2140		2137
2141	if (exclude && exclude->head)	2138	if (exclude && exclude->head_ () != exclude)
2142	{	2139	{
2143	exclude = exclude->head;	2140	exclude = exclude->head;
2144	move_type = exclude->move_type;	2141	move_type = exclude->move_type;
2145	}	2142	}
2146	else	2143	else
2147	{	2144	{
2148	/* If we don't have anything, presume it can use all movement types. */	2145	/* If we don't have anything, presume it can use all movement types. */
2149	move_type = MOVE_ALL;	2146	move_type = MOVE_ALL;
2150	}	2147	}
2151		2148
2152	for (i = 1; i < max; i++)	2149	for (int i = 1; i < max; i++)
2153	{	2150	{
2154	mp = m;	2151	mapxy pos (m, x, y);
2155	nx = x + freearr_x[i];	2152	pos.move (i);
2156	ny = y + freearr_y[i];
2157		2153
2158	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);	2154	if (!pos.normalise ())
2159
2160	if (mflags & P_OUT_OF_MAP)
2161	max = maxfree[i];	2155	max = maxfree[i];
2162	else	2156	else
2163	{	2157	{
2164	blocked = GET_MAP_MOVE_BLOCK (mp, nx, ny);	2158	mapspace &ms = *pos;
2165		2159
2166	if ((move_type & blocked) == move_type)	2160	if ((move_type & ms.move_block) == move_type)
2167	max = maxfree[i];	2161	max = maxfree [i];
2168	else if (mflags & P_IS_ALIVE)	2162	else if (ms.flags () & P_IS_ALIVE)
2169	{	2163	{
2170	for (tmp = GET_MAP_OB (mp, nx, ny); tmp; tmp = tmp->above)	2164	for (object *tmp = ms.bot; tmp; tmp = tmp->above)
2171	if ((QUERY_FLAG (tmp, FLAG_MONSTER) || tmp->type == PLAYER) && (tmp != exclude || (tmp->head && tmp->head != exclude)))	2165	if ((tmp->flag [FLAG_MONSTER] || tmp->is_player ())
2172	break;	2166	&& (tmp != exclude || (tmp->head_ () != tmp && tmp->head_ () != exclude)))
2173
2174	if (tmp)
2175	return freedir[i];	2167	return freedir [i];
2176	}	2168	}
2177	}	2169	}
2178	}	2170	}
2179		2171
2180	return 0;	2172	return 0;
…		…
2182		2174
2183	/*	2175	/*
2184	* distance(object 1, object 2) will return the square of the	2176	* distance(object 1, object 2) will return the square of the
2185	* distance between the two given objects.	2177	* distance between the two given objects.
2186	*/	2178	*/
2187
2188	int	2179	int
2189	distance (const object *ob1, const object *ob2)	2180	distance (const object *ob1, const object *ob2)
2190	{	2181	{
2191	int i;
2192
2193	i = (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);	2182	return (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);
2194	return i;
2195	}	2183	}
2196		2184
2197	/*	2185	/*
2198	* find_dir_2(delta-x,delta-y) will return a direction in which	2186	* find_dir_2(delta-x,delta-y) will return a direction value
2199	* an object which has subtracted the x and y coordinates of another	2187	* for running into direct [dx, dy].
2200	* object, needs to travel toward it.	2188	* (the opposite of crossfire's find_dir_2!)
2201	*/	2189	*/
2202
2203	int	2190	int
2204	find_dir_2 (int x, int y)	2191	find_dir_2 (int x, int y)
2205	{	2192	{
		2193	#if 1 // new algorithm
		2194	// this works by putting x, y into 16 sectors, which
		2195	// are not equal sized, but are a better approximation
		2196	// then the old algorithm, and then using a mapping
		2197	// table to map it into a direction value.
		2198	// basically, it maps these comparisons to each bit
		2199	// bit #3: x < 0
		2200	// bit #2: y < 0
		2201	// bit #1: x > y
		2202	// bit #0: x > 2y
		2203
		2204	static const uint8 dir[16] = {
		2205	4, 5, 4, 3,
		2206	2, 1, 2, 3,
		2207	6, 5, 6, 7,
		2208	8, 1, 8, 7,
		2209	};
		2210	int sector = 0;
		2211
		2212	// this is a bit ugly, but more likely to result in branchless code
		2213	sector |= x < 0 ? 8 : 0;
		2214	x = x < 0 ? -x : x; // abs
		2215
		2216	sector |= y < 0 ? 4 : 0;
		2217	y = y < 0 ? -y : y; // abs
		2218
		2219	if (x > y)
		2220	{
		2221	sector |= 2;
		2222
		2223	if (x > y * 2)
		2224	sector |= 1;
		2225	}
		2226	else
		2227	{
		2228	if (y > x * 2)
		2229	sector |= 1;
		2230	else if (!y)
		2231	return 0; // x == 0 here
		2232	}
		2233
		2234	return dir [sector];
		2235	#else // old algorithm
2206	int q;	2236	int q;
2207		2237
2208	if (y)	2238	if (y)
2209	q = x * 100 / y;	2239	q = 128 * x / y;
2210	else if (x)	2240	else if (x)
2211	q = -300 * x;	2241	q = -512 * x; // to make it > 309
2212	else	2242	else
2213	return 0;	2243	return 0;
2214		2244
2215	if (y > 0)	2245	if (y > 0)
2216	{	2246	{
2217	if (q < -242)	2247	if (q < -309) return 7;
		2248	if (q < -52) return 6;
		2249	if (q < 52) return 5;
		2250	if (q < 309) return 4;
		2251
2218	return 3;	2252	return 3;
2219	if (q < -41)	2253	}
2220	return 2;	2254	else
2221	if (q < 41)	2255	{
2222	return 1;	2256	if (q < -309) return 3;
2223	if (q < 242)	2257	if (q < -52) return 2;
2224	return 8;	2258	if (q < 52) return 1;
		2259	if (q < 309) return 8;
		2260
2225	return 7;	2261	return 7;
2226	}	2262	}
2227		2263	#endif
2228	if (q < -242)
2229	return 7;
2230	if (q < -41)
2231	return 6;
2232	if (q < 41)
2233	return 5;
2234	if (q < 242)
2235	return 4;
2236
2237	return 3;
2238	}
2239
2240	/*
2241	* absdir(int): Returns a number between 1 and 8, which represent
2242	* the "absolute" direction of a number (it actually takes care of
2243	* "overflow" in previous calculations of a direction).
2244	*/
2245
2246	int
2247	absdir (int d)
2248	{
2249	while (d < 1)
2250	d += 8;
2251	while (d > 8)
2252	d -= 8;
2253	return d;
2254	}	2264	}
2255		2265
2256	/*	2266	/*
2257	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is	2267	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is
2258	* between two directions (which are expected to be absolute (see absdir())	2268	* between two directions (which are expected to be absolute (see absdir())
2259	*/	2269	*/
2260
2261	int	2270	int
2262	dirdiff (int dir1, int dir2)	2271	dirdiff (int dir1, int dir2)
2263	{	2272	{
2264	int
2265	d;
2266
2267	d = abs (dir1 - dir2);	2273	int d = abs (dir1 - dir2);
2268	if (d > 4)	2274
2269	d = 8 - d;	2275	return d > 4 ? 8 - d : d;
2270	return d;
2271	}	2276	}
2272		2277
2273	/* peterm:	2278	/* peterm:
2274	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.	2279	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.
2275	* Basically, this is a table of directions, and what directions	2280	* Basically, this is a table of directions, and what directions
…		…
2277	* This basically means that if direction is 15, then it could either go	2282	* This basically means that if direction is 15, then it could either go
2278	* direction 4, 14, or 16 to get back to where we are.	2283	* direction 4, 14, or 16 to get back to where we are.
2279	* Moved from spell_util.c to object.c with the other related direction	2284	* Moved from spell_util.c to object.c with the other related direction
2280	* functions.	2285	* functions.
2281	*/	2286	*/
2282
2283	int
2284	reduction_dir[SIZEOFFREE][3] = {	2287	static const int reduction_dir[SIZEOFFREE][3] = {
2285	{0, 0, 0}, /* 0 */	2288	{0, 0, 0}, /* 0 */
2286	{0, 0, 0}, /* 1 */	2289	{0, 0, 0}, /* 1 */
2287	{0, 0, 0}, /* 2 */	2290	{0, 0, 0}, /* 2 */
2288	{0, 0, 0}, /* 3 */	2291	{0, 0, 0}, /* 3 */
2289	{0, 0, 0}, /* 4 */	2292	{0, 0, 0}, /* 4 */
…		…
2380	* Cf 0.91.3 - don't let WIZ's pick up anything - will likely cause	2383	* Cf 0.91.3 - don't let WIZ's pick up anything - will likely cause
2381	* core dumps if they do.	2384	* core dumps if they do.
2382	*	2385	*
2383	* Add a check so we can't pick up invisible objects (0.93.8)	2386	* Add a check so we can't pick up invisible objects (0.93.8)
2384	*/	2387	*/
2385
2386	int	2388	int
2387	can_pick (const object *who, const object *item)	2389	can_pick (const object *who, const object *item)
2388	{	2390	{
2389	return /*QUERY_FLAG(who,FLAG_WIZ)|| */	2391	return /*who->flag [FLAG_WIZ]|| */
2390	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&	2392	(item->weight > 0 && !item->flag [FLAG_NO_PICK] &&
2391	!QUERY_FLAG (item, FLAG_ALIVE) && !item->invisible && (who->type == PLAYER || item->weight < who->weight / 3));	2393	!item->flag [FLAG_ALIVE] && !item->invisible && (who->is_player () || item->weight < who->weight / 3));
2392	}	2394	}
		2395
		2396	//-GPL
2393		2397
2394	/*	2398	/*
2395	* create clone from object to another	2399	* create clone from object to another
2396	*/	2400	*/
2397	object *	2401	object *
2398	object_create_clone (object *asrc)	2402	object::deep_clone ()
2399	{	2403	{
2400	object *dst = 0, *tmp, *src, *part, *prev, *item;	2404	assert (("deep_clone called on non-head object", is_head ()));
2401		2405
2402	if (!asrc)	2406	object *dst = clone ();
2403	return 0;
2404		2407
2405	src = asrc;	2408	object *prev = dst;
2406	if (src->head)
2407	src = src->head;
2408
2409	prev = 0;
2410	for (part = src; part; part = part->more)	2409	for (object *part = this->more; part; part = part->more)
2411	{	2410	{
2412	tmp = part->clone ();	2411	object *tmp = part->clone ();
2413	tmp->x -= src->x;
2414	tmp->y -= src->y;
2415
2416	if (!part->head)
2417	{
2418	dst = tmp;
2419	tmp->head = 0;
2420	}
2421	else
2422	tmp->head = dst;	2412	tmp->head = dst;
2423
2424	tmp->more = 0;
2425
2426	if (prev)
2427	prev->more = tmp;	2413	prev->more = tmp;
2428
2429	prev = tmp;	2414	prev = tmp;
2430	}	2415	}
2431		2416
2432	for (item = src->inv; item; item = item->below)	2417	for (object *item = inv; item; item = item->below)
2433	insert_ob_in_ob (object_create_clone (item), dst);	2418	insert_ob_in_ob (item->deep_clone (), dst);
2434		2419
2435	return dst;	2420	return dst;
2436	}
2437
2438	/* GROS - Creates an object using a string representing its content. */
2439	/* Basically, we save the content of the string to a temp file, then call */
2440	/* load_object on it. I admit it is a highly inefficient way to make things, */
2441	/* but it was simple to make and allows reusing the load_object function. */
2442	/* Remember not to use load_object_str in a time-critical situation. */
2443	/* Also remember that multiparts objects are not supported for now. */
2444
2445	object *
2446	load_object_str (const char *obstr)
2447	{
2448	object *op;
2449	char filename[MAX_BUF];
2450
2451	sprintf (filename, "%s/cfloadobstr2044", settings.tmpdir);
2452
2453	FILE *tempfile = fopen (filename, "w");
2454
2455	if (tempfile == NULL)
2456	{
2457	LOG (llevError, "Error - Unable to access load object temp file\n");
2458	return NULL;
2459	}
2460
2461	fprintf (tempfile, obstr);
2462	fclose (tempfile);
2463
2464	op = object::create ();
2465
2466	object_thawer thawer (filename);
2467
2468	if (thawer)
2469	load_object (thawer, op, 0);
2470
2471	LOG (llevDebug, " load str completed, object=%s\n", &op->name);
2472	CLEAR_FLAG (op, FLAG_REMOVED);
2473
2474	return op;
2475	}	2421	}
2476		2422
2477	/* This returns the first object in who's inventory that	2423	/* This returns the first object in who's inventory that
2478	* has the same type and subtype match.	2424	* has the same type and subtype match.
2479	* returns NULL if no match.	2425	* returns NULL if no match.
2480	*/	2426	*/
2481	object *	2427	object *
2482	find_obj_by_type_subtype (const object *who, int type, int subtype)	2428	find_obj_by_type_subtype (const object *who, int type, int subtype)
2483	{	2429	{
2484	object *tmp;
2485
2486	for (tmp = who->inv; tmp; tmp = tmp->below)	2430	for (object *tmp = who->inv; tmp; tmp = tmp->below)
2487	if (tmp->type == type && tmp->subtype == subtype)	2431	if (tmp->type == type && tmp->subtype == subtype)
2488	return tmp;	2432	return tmp;
2489		2433
2490	return NULL;
2491	}
2492
2493	/* If ob has a field named key, return the link from the list,
2494	* otherwise return NULL.
2495	*
2496	* key must be a passed in shared string - otherwise, this won't
2497	* do the desired thing.
2498	*/
2499	key_value *
2500	get_ob_key_link (const object *ob, const char *key)
2501	{
2502	key_value *link;
2503
2504	for (link = ob->key_values; link != NULL; link = link->next)
2505	if (link->key == key)
2506	return link;
2507
2508	return NULL;
2509	}
2510
2511	/*
2512	* Returns the value of op has an extra_field for key, or NULL.
2513	*
2514	* The argument doesn't need to be a shared string.
2515	*
2516	* The returned string is shared.
2517	*/
2518	const char *
2519	get_ob_key_value (const object *op, const char *const key)
2520	{
2521	key_value *link;
2522	shstr_cmp canonical_key (key);
2523
2524	if (!canonical_key)
2525	{
2526	/* 1. There being a field named key on any object
2527	* implies there'd be a shared string to find.
2528	* 2. Since there isn't, no object has this field.
2529	* 3. Therefore, *this* object doesn't have this field.
2530	*/
2531	return 0;
2532	}
2533
2534	/* This is copied from get_ob_key_link() above -
2535	* only 4 lines, and saves the function call overhead.
2536	*/
2537	for (link = op->key_values; link; link = link->next)
2538	if (link->key == canonical_key)
2539	return link->value;
2540
2541	return 0;	2434	return 0;
2542	}	2435	}
2543		2436
2544		2437	/* Zero the key_values on op, decrementing the shared-string
2545	/*	2438	* refcounts and freeing the links.
2546	* Updates the canonical_key in op to value.
2547	*	2439	*/
2548	* canonical_key is a shared string (value doesn't have to be).	2440	void
2549	*	2441	key_values::clear ()
2550	* Unless add_key is TRUE, it won't add fields, only change the value of existing
2551	* keys.
2552	*
2553	* Returns TRUE on success.
2554	*/
2555	int
2556	set_ob_key_value_s (object *op, const shstr & canonical_key, const char *value, int add_key)
2557	{	2442	{
2558	key_value *	2443	for (key_value *kvp = first; kvp; )
2559	field = NULL, *last = NULL;	2444	{
2560		2445	key_value *next = kvp->next;
2561	for (field = op->key_values; field != NULL; field = field->next)	2446	delete kvp;
		2447	kvp = next;
2562	{	2448	}
2563	if (field->key != canonical_key)	2449
		2450	first = 0;
		2451	}
		2452
		2453	shstr_tmp
		2454	key_values::get (shstr_tmp key) const
		2455	{
		2456	for (key_value *kv = first; kv; kv = kv->next)
		2457	if (kv->key == key)
		2458	return kv->value;
		2459
		2460	return shstr ();
		2461	}
		2462
		2463	void
		2464	key_values::add (shstr_tmp key, shstr_tmp value)
		2465	{
		2466	key_value *kv = new key_value;
		2467
		2468	kv->next = first;
		2469	kv->key = key;
		2470	kv->value = value;
		2471
		2472	first = kv;
		2473	}
		2474
		2475	void
		2476	key_values::set (shstr_tmp key, shstr_tmp value)
		2477	{
		2478	for (key_value *kv = first; kv; kv = kv->next)
		2479	if (kv->key == key)
2564	{	2480	{
2565	last = field;	2481	kv->value = value;
2566	continue;	2482	return;
2567	}	2483	}
2568		2484
2569	if (value)	2485	add (key, value);
2570	field->value = value;	2486	}
2571	else	2487
		2488	void
		2489	key_values::del (shstr_tmp key)
		2490	{
		2491	for (key_value **kvp = &first; *kvp; kvp = &(*kvp)->next)
		2492	if ((*kvp)->key == key)
2572	{	2493	{
2573	/* Basically, if the archetype has this key set,	2494	key_value *kv = *kvp;
2574	* we need to store the null value so when we save	2495	*kvp = (*kvp)->next;
2575	* it, we save the empty value so that when we load,	2496	delete kv;
2576	* we get this value back again.	2497	return;
2577	*/
2578	if (get_ob_key_link (&op->arch->clone, canonical_key))
2579	field->value = 0;
2580	else
2581	{
2582	if (last)
2583	last->next = field->next;
2584	else
2585	op->key_values = field->next;
2586
2587	delete field;
2588	}
2589	}	2498	}
2590	return TRUE;	2499	}
		2500
		2501	void
		2502	key_values::reverse ()
		2503	{
		2504	key_value *prev = 0;
		2505	key_value *head = first;
		2506
		2507	while (head)
2591	}	2508	{
2592	/* IF we get here, key doesn't exist */	2509	key_value *node = head;
2593		2510	head = head->next;
2594	/* No field, we'll have to add it. */	2511	node->next = prev;
2595		2512	prev = node;
2596	if (!add_key)
2597	{	2513	}
2598	return FALSE;
2599	}
2600	/* There isn't any good reason to store a null
2601	* value in the key/value list. If the archetype has
2602	* this key, then we should also have it, so shouldn't
2603	* be here. If user wants to store empty strings,
2604	* should pass in ""
2605	*/
2606	if (value == NULL)
2607	return TRUE;
2608		2514
2609	field = new key_value;	2515	first = prev;
2610
2611	field->key = canonical_key;
2612	field->value = value;
2613	/* Usual prepend-addition. */
2614	field->next = op->key_values;
2615	op->key_values = field;
2616
2617	return TRUE;
2618	}	2516	}
2619		2517
2620	/*	2518	key_values &
2621	* Updates the key in op to value.	2519	key_values::operator =(const key_values &kv)
2622	*
2623	* If add_key is FALSE, this will only update existing keys,
2624	* and not add new ones.
2625	* In general, should be little reason FALSE is ever passed in for add_key
2626	*
2627	* Returns TRUE on success.
2628	*/
2629	int
2630	set_ob_key_value (object *op, const char *key, const char *value, int add_key)
2631	{	2520	{
2632	shstr key_ (key);	2521	clear ();
2633		2522
2634	return set_ob_key_value_s (op, key_, value, add_key);	2523	for (key_value *kvp = kv.first; kvp; kvp = kvp->next)
		2524	add (kvp->key, kvp->value);
		2525
		2526	reverse ();
2635	}	2527	}
2636		2528
2637	object::depth_iterator::depth_iterator (object *container)	2529	object::depth_iterator::depth_iterator (object *container)
2638	: iterator_base (container)	2530	: iterator_base (container)
2639	{	2531	{
…		…
2653	}	2545	}
2654	else	2546	else
2655	item = item->env;	2547	item = item->env;
2656	}	2548	}
2657		2549
		2550	const char *
		2551	object::flag_desc (char *desc, int len) const
		2552	{
		2553	char *p = desc;
		2554	bool first = true;
		2555
		2556	*p = 0;
		2557
		2558	for (int i = 0; i < NUM_FLAGS; i++)
		2559	{
		2560	if (len <= 10) // magic constant!
		2561	{
		2562	snprintf (p, len, ",...");
		2563	break;
		2564	}
		2565
		2566	if (flag [i])
		2567	{
		2568	int cnt = snprintf (p, len, "%s%d", first ? "" : ",", i);
		2569	len -= cnt;
		2570	p += cnt;
		2571	first = false;
		2572	}
		2573	}
		2574
		2575	return desc;
		2576	}
		2577
2658	// return a suitable string describing an objetc in enough detail to find it	2578	// return a suitable string describing an object in enough detail to find it
2659	const char *	2579	const char *
2660	object::debug_desc (char *info) const	2580	object::debug_desc (char *info) const
2661	{	2581	{
		2582	char flagdesc[512];
2662	char info2[256 * 3];	2583	char info2[256 * 4];
2663	char *p = info;	2584	char *p = info;
2664		2585
2665	p += snprintf (p, 256, "%d=\"%s%s%s\"",	2586	p += snprintf (p, 512, "{cnt:%d,uuid:%s,name:\"%s\"%s%s%s,flags:[%s],type:%d}",
2666	count,	2587	count,
		2588	uuid.c_str (),
2667	&name,	2589	&name,
2668	title ? " " : "",	2590	title ? ",title:\"" : "",
2669	title ? (const char *)title : "");	2591	title ? (const char *)title : "",
		2592	title ? "\"" : "",
		2593	flag_desc (flagdesc, 512), type);
2670		2594
2671	if (env)	2595	if (!flag[FLAG_REMOVED] && env)
2672	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));	2596	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));
2673		2597
2674	if (map)	2598	if (map)
2675	p += snprintf (p, 256, "(on %s@%d+%d)", map->path, x, y);	2599	p += snprintf (p, 256, "(on %s@%d+%d)", &map->path, x, y);
2676		2600
2677	return info;	2601	return info;
2678	}	2602	}
2679		2603
2680	const char *	2604	const char *
2681	object::debug_desc () const	2605	object::debug_desc () const
2682	{	2606	{
2683	static char info[256 * 3];	2607	static char info[3][256 * 4];
		2608	static int info_idx;
		2609
2684	return debug_desc (info);	2610	return debug_desc (info [++info_idx % 3]);
2685	}	2611	}
2686		2612
		2613	struct region *
		2614	object::region () const
		2615	{
		2616	return map ? map->region (x, y)
		2617	: region::default_region ();
		2618	}
		2619
		2620	//+GPL
		2621
		2622	void
		2623	object::open_container (object *new_container)
		2624	{
		2625	if (container == new_container)
		2626	return;
		2627
		2628	object *old_container = container;
		2629
		2630	if (old_container)
		2631	{
		2632	if (INVOKE_OBJECT (CLOSE, old_container, ARG_OBJECT (this)))
		2633	return;
		2634
		2635	#if 0
		2636	// remove the "Close old_container" object.
		2637	if (object *closer = old_container->inv)
		2638	if (closer->type == CLOSE_CON)
		2639	closer->destroy ();
		2640	#endif
		2641
		2642	// make sure the container is available
		2643	esrv_send_item (this, old_container);
		2644
		2645	old_container->flag [FLAG_APPLIED] = false;
		2646	container = 0;
		2647
		2648	// client needs item update to make it work, client bug requires this to be separate
		2649	esrv_update_item (UPD_FLAGS, this, old_container);
		2650
		2651	new_draw_info_format (NDI_UNIQUE, 0, this, "You close %s.", old_container->query_name ());
		2652	play_sound (sound_find ("chest_close"));
		2653	}
		2654
		2655	if (new_container)
		2656	{
		2657	if (INVOKE_OBJECT (OPEN, new_container, ARG_OBJECT (this)))
		2658	return;
		2659
		2660	// TODO: this does not seem to serve any purpose anymore?
		2661	#if 0
		2662	// insert the "Close Container" object.
		2663	if (archetype *closer = new_container->other_arch)
		2664	{
		2665	object *closer = new_container->other_arch->instance ();
		2666	closer->flag [FLAG_NO_MAP_SAVE] = 1;
		2667	new_container->insert (closer);
		2668	}
		2669	#endif
		2670
		2671	new_draw_info_format (NDI_UNIQUE, 0, this, "You open %s.", new_container->query_name ());
		2672
		2673	// make sure the container is available, client bug requires this to be separate
		2674	esrv_send_item (this, new_container);
		2675
		2676	new_container->flag [FLAG_APPLIED] = true;
		2677	container = new_container;
		2678
		2679	// client needs flag change
		2680	esrv_update_item (UPD_FLAGS, this, new_container);
		2681	esrv_send_inventory (this, new_container);
		2682	play_sound (sound_find ("chest_open"));
		2683	}
		2684	// else if (!old_container->env && contr && contr->ns)
		2685	// contr->ns->floorbox_reset ();
		2686	}
		2687
		2688	//-GPL
		2689
		2690	// prefetch some flat area around the player
		2691	static void
		2692	prefetch_surrounding_area (object *op, maptile *map, int range)
		2693	{
		2694	for (maprect *rect = map->split_to_tiles (mapwalk_buf,
		2695	op->x - range , op->y - range ,
		2696	op->x + range + 1, op->y + range + 1);
		2697	rect->m;
		2698	++rect)
		2699	{
		2700	rect->m->touch ();
		2701	rect->m->activate ();
		2702	}
		2703	}
		2704
		2705	// prefetch a generous area around the player, also up and down
		2706	void
		2707	object::prefetch_surrounding_maps ()
		2708	{
		2709	prefetch_surrounding_area (this, map, 40);
		2710
		2711	if (maptile *m = map->tile_available (TILE_DOWN))
		2712	prefetch_surrounding_area (this, m, 20);
		2713
		2714	if (maptile *m = map->tile_available (TILE_UP))
		2715	prefetch_surrounding_area (this, m, 20);
		2716	}
		2717
		2718	//+GPL
		2719
		2720	object *
		2721	object::force_find (shstr_tmp name)
		2722	{
		2723	/* cycle through his inventory to look for the MARK we want to
		2724	* place
		2725	*/
		2726	for (object *tmp = inv; tmp; tmp = tmp->below)
		2727	if (tmp->type == FORCE && tmp->slaying == name)
		2728	return splay (tmp);
		2729
		2730	return 0;
		2731	}
		2732
		2733	void
		2734	object::force_set_timer (int duration)
		2735	{
		2736	this->duration = 1;
		2737	this->speed_left = -1.f;
		2738
		2739	this->set_speed (duration ? 1.f / duration : 0.f);
		2740	}
		2741
		2742	object *
		2743	object::force_add (shstr_tmp name, int duration)
		2744	{
		2745	if (object *force = force_find (name))
		2746	force->destroy ();
		2747
		2748	object *force = archetype::get (FORCE_NAME);
		2749
		2750	force->slaying = name;
		2751	force->force_set_timer (duration);
		2752	force->flag [FLAG_APPLIED] = true;
		2753
		2754	return insert (force);
		2755	}
		2756
		2757	void
		2758	object::play_sound (faceidx sound) const
		2759	{
		2760	if (!sound)
		2761	return;
		2762
		2763	if (is_on_map ())
		2764	map->play_sound (sound, x, y);
		2765	else if (object *pl = in_player ())
		2766	pl->contr->play_sound (sound);
		2767	}
		2768
		2769	void
		2770	object::say_msg (const char *msg) const
		2771	{
		2772	if (is_on_map ())
		2773	map->say_msg (msg, x, y);
		2774	else if (object *pl = in_player ())
		2775	pl->contr->play_sound (sound);
		2776	}
		2777
		2778	void
		2779	object::make_noise ()
		2780	{
		2781	// we do not model noise in the map, so instead put
		2782	// a temporary light into the noise source
		2783	// could use the map instead, but that's less reliable for our
		2784	// goal, which is to make invisibility a bit harder to exploit
		2785
		2786	// currently only works sensibly for players
		2787	if (!is_player ())
		2788	return;
		2789
		2790	// find old force, or create new one
		2791	object *force = force_find (shstr_noise_force);
		2792
		2793	if (force)
		2794	force->speed_left = -1.f; // patch old speed up
		2795	else
		2796	{
		2797	force = archetype::get (shstr_noise_force);
		2798
		2799	force->slaying = shstr_noise_force;
		2800	force->stats.food = 1;
		2801	force->speed_left = -1.f;
		2802
		2803	force->set_speed (1.f / 4.f);
		2804	force->flag [FLAG_IS_USED_UP] = true;
		2805	force->flag [FLAG_APPLIED] = true;
		2806
		2807	insert (force);
		2808	}
		2809	}
		2810
		2811	void object::change_move_type (MoveType mt)
		2812	{
		2813	if (move_type == mt)
		2814	return;
		2815
		2816	if (is_on_map ())
		2817	{
		2818	// we are on the map, so handle move_on/off effects
		2819	remove ();
		2820	move_type = mt;
		2821	map->insert (this, x, y, this);
		2822	}
		2823	else
		2824	move_type = mt;
		2825	}
		2826
		2827	/* object should be a player.
		2828	* we return the object the player has marked with the 'mark' command
		2829	* below. If no match is found (or object has changed), we return
		2830	* NULL. We leave it up to the calling function to print messages if
		2831	* nothing is found.
		2832	*/
		2833	object *
		2834	object::mark () const
		2835	{
		2836	if (contr && contr->mark && contr->mark->env == this)
		2837	return contr->mark;
		2838	else
		2839	return 0;
		2840	}
		2841
		2842	// put marked object first in the inventory
		2843	// this is used by identify-like spells so players can influence
		2844	// the order a bit.
		2845	void
		2846	object::splay_marked ()
		2847	{
		2848	if (object *marked = mark ())
		2849	splay (marked);
		2850	}
		2851

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