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Comparing deliantra/server/common/object.C (file contents):
Revision 1.87 by root, Tue Dec 26 08:54:59 2006 UTC vs.
Revision 1.344 by root, Sun May 1 13:18:23 2011 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 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; 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, 1);	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 (is_freed)	618	// maybe move to object_copy?
489	SET_FLAG (dst, FLAG_FREED);	619	dst->kv = kv;
490		620
491	if (is_removed)	621	dst->flag [FLAG_REMOVED] = true;
492	SET_FLAG (dst, FLAG_REMOVED);	622	dst->activate ();
		623	}
493		624
494	if (speed < 0)	625	void
495	dst->speed_left = speed_left - RANDOM () % 200 / 100.0;	626	object::instantiate ()
		627	{
		628	if (!uuid.seq) // HACK
		629	uuid = UUID::gen ();
496		630
497	/* Copy over key_values, if any. */	631	// TODO: unclean state changes, should not be done in copy_to AND instantiate
498	if (key_values)	632	if (flag [FLAG_RANDOM_SPEED] && speed)
499	{	633	speed_left = - speed - rndm (); // TODO animation
500	key_value *tail = 0;	634	else
501	key_value *i;	635	speed_left = -1.;
502		636
503	dst->key_values = 0;	637	/* copy the body_info to the body_used - this is only really
		638	* need for monsters, but doesn't hurt to do it for everything.
		639	* by doing so, when a monster is created, it has good starting
		640	* values for the body_used info, so when items are created
		641	* for it, they can be properly equipped.
		642	*/
		643	for (int i = NUM_BODY_LOCATIONS; i--; )
		644	slot[i].used = slot[i].info;
504		645
505	for (i = key_values; i; i = i->next)	646	attachable::instantiate ();
506	{
507	key_value *new_link = new key_value;
508
509	new_link->next = 0;
510	new_link->key = i->key;
511	new_link->value = i->value;
512
513	/* Try and be clever here, too. */
514	if (!dst->key_values)
515	{
516	dst->key_values = new_link;
517	tail = new_link;
518	}
519	else
520	{
521	tail->next = new_link;
522	tail = new_link;
523	}
524	}
525	}
526
527	dst->set_speed (dst->speed);
528	}	647	}
529		648
530	object *	649	object *
531	object::clone ()	650	object::clone ()
532	{	651	{
533	object *neu = create ();	652	object *neu = create ();
534	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
535	return neu;	660	return neu;
536	}	661	}
537		662
538	/*	663	/*
539	* 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
540	* 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
541	* 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.
542	*/	667	*/
543
544	void	668	void
545	update_turn_face (object *op)	669	update_turn_face (object *op)
546	{	670	{
547	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || op->arch == NULL)	671	if (!op->flag [FLAG_IS_TURNABLE] || !op->arch)
548	return;	672	return;
		673
549	SET_ANIMATION (op, op->direction);	674	SET_ANIMATION (op, op->direction);
550	update_object (op, UP_OBJ_FACE);	675	update_object (op, UP_OBJ_FACE);
551	}	676	}
552		677
553	/*	678	/*
…		…
556	* 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.
557	*/	682	*/
558	void	683	void
559	object::set_speed (float speed)	684	object::set_speed (float speed)
560	{	685	{
561	extern int arch_init;
562
563	/* No reason putting the archetypes objects on the speed list,
564	* since they never really need to be updated.
565	*/
566	if (flag [FLAG_FREED] && speed)
567	{
568	LOG (llevError, "Object %s is freed but has speed.\n", &name);
569	speed = 0;
570	}
571
572	this->speed = speed;	686	this->speed = speed;
573		687
574	if (arch_init)	688	if (has_active_speed ())
575	return;	689	activate ();
576
577	if (FABS (speed) > MIN_ACTIVE_SPEED)
578	{
579	/* If already on active list, don't do anything */
580	if (active_next || active_prev || this == active_objects)
581	return;
582
583	/* process_events() expects us to insert the object at the beginning
584	* of the list. */
585	active_next = active_objects;
586
587	if (active_next)
588	active_next->active_prev = this;
589
590	active_objects = this;
591	}
592	else	690	else
593	{	691	deactivate ();
594	/* If not on the active list, nothing needs to be done */
595	if (!active_next && !active_prev && this != active_objects)
596	return;
597
598	if (!active_prev)
599	{
600	active_objects = active_next;
601
602	if (active_next)
603	active_next->active_prev = 0;
604	}
605	else
606	{
607	active_prev->active_next = active_next;
608
609	if (active_next)
610	active_next->active_prev = active_prev;
611	}
612
613	active_next = 0;
614	active_prev = 0;
615	}
616	}
617
618	/* This function removes object 'op' from the list of active
619	* objects.
620	* This should only be used for style maps or other such
621	* reference maps where you don't want an object that isn't
622	* in play chewing up cpu time getting processed.
623	* The reverse of this is to call update_ob_speed, which
624	* will do the right thing based on the speed of the object.
625	*/
626	void
627	remove_from_active_list (object *op)
628	{
629	/* If not on the active list, nothing needs to be done */
630	if (!op->active_next && !op->active_prev && op != active_objects)
631	return;
632
633	if (op->active_prev == NULL)
634	{
635	active_objects = op->active_next;
636	if (op->active_next != NULL)
637	op->active_next->active_prev = NULL;
638	}
639	else
640	{
641	op->active_prev->active_next = op->active_next;
642	if (op->active_next)
643	op->active_next->active_prev = op->active_prev;
644	}
645	op->active_next = NULL;
646	op->active_prev = NULL;
647	}	692	}
648		693
649	/*	694	/*
650	* update_object() updates the the map.	695	* update_object() updates the the map.
651	* It takes into account invisible objects (and represent squares covered	696	* It takes into account invisible objects (and represent squares covered
…		…
664	* UP_OBJ_FACE: only the objects face has changed.	709	* UP_OBJ_FACE: only the objects face has changed.
665	*/	710	*/
666	void	711	void
667	update_object (object *op, int action)	712	update_object (object *op, int action)
668	{	713	{
669	MoveType move_on, move_off, move_block, move_slow;	714	if (!op)
670
671	if (op == NULL)
672	{	715	{
673	/* this should never happen */	716	/* this should never happen */
674	LOG (llevDebug, "update_object() called for NULL object.\n");	717	LOG (llevError | logBacktrace, "update_object() called for NULL object.\n");
675	return;	718	return;
676	}	719	}
677		720
678	if (op->env)	721	if (!op->is_on_map ())
679	{	722	{
680	/* Animation is currently handled by client, so nothing	723	/* Animation is currently handled by client, so nothing
681	* to do in this case.	724	* to do in this case.
682	*/	725	*/
683	return;	726	return;
684	}	727	}
685
686	/* If the map is saving, don't do anything as everything is
687	* going to get freed anyways.
688	*/
689	if (!op->map || op->map->in_memory == MAP_SAVING)
690	return;
691		728
692	/* make sure the object is within map boundaries */	729	/* make sure the object is within map boundaries */
693	if (op->x < 0 || op->x >= op->map->width || op->y < 0 || op->y >= op->map->height)	730	if (op->x < 0 || op->x >= op->map->width || op->y < 0 || op->y >= op->map->height)
694	{	731	{
695	LOG (llevError, "update_object() called for object out of map!\n");	732	LOG (llevError, "update_object() called for object out of map!\n");
…		…
699	return;	736	return;
700	}	737	}
701		738
702	mapspace &m = op->ms ();	739	mapspace &m = op->ms ();
703		740
704	if (m.flags_ & P_NEED_UPDATE)	741	if (!(m.flags_ & P_UPTODATE))
705	/* nop */;	742	/* nop */;
706	else if (action == UP_OBJ_INSERT)	743	else if (action == UP_OBJ_INSERT)
707	{	744	{
		745	#if 0
708	// this is likely overkill, TODO: revisit (schmorp)	746	// this is likely overkill, TODO: revisit (schmorp)
709	if ((QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(m.flags_ & P_BLOCKSVIEW))	747	if ((op->flag [FLAG_BLOCKSVIEW] && !(m.flags_ & P_BLOCKSVIEW))
710	|| (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(m.flags_ & P_NO_MAGIC))	748	|| (op->flag [FLAG_NO_MAGIC] && !(m.flags_ & P_NO_MAGIC))
711	|| (op->type == PLAYER && !(m.flags_ & P_PLAYER))	749	|| (op->is_player () && !(m.flags_ & P_PLAYER))
712	|| (op->type == SAFE_GROUND && !(m.flags_ & P_SAFE))	750	|| (op->type == SAFE_GROUND && !(m.flags_ & P_SAFE))
713	|| (QUERY_FLAG (op, FLAG_ALIVE) && !(m.flags_ & P_IS_ALIVE))	751	|| (op->flag [FLAG_ALIVE] && !(m.flags_ & P_IS_ALIVE))
714	|| (QUERY_FLAG (op, FLAG_DAMNED) && !(m.flags_ & P_NO_CLERIC))	752	|| (op->flag [FLAG_DAMNED] && !(m.flags_ & P_NO_CLERIC))
715	|| (m.move_on | op->move_on ) != m.move_on	753	|| (m.move_on | op->move_on ) != m.move_on
716	|| (m.move_off | op->move_off ) != m.move_off	754	|| (m.move_off | op->move_off ) != m.move_off
717	|| (m.move_slow | op->move_slow) != m.move_slow	755	|| (m.move_slow | op->move_slow) != m.move_slow
718	/* 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
719	* to have move_allow right now.	757	* have move_allow right now.
720	*/	758	*/
721	|| ((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
722	|| 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)
723	m.flags_ = P_NEED_UPDATE;	763	m.invalidate ();
		764	#endif
724	}	765	}
725	/* if the object is being removed, we can't make intelligent	766	/* if the object is being removed, we can't make intelligent
726	* decisions, because remove_ob can't really pass the object	767	* decisions, because remove_ob can't really pass the object
727	* that is being removed.	768	* that is being removed.
728	*/	769	*/
729	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)	770	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)
730	m.flags_ = P_NEED_UPDATE;	771	m.invalidate ();
731	else if (action == UP_OBJ_FACE)	772	else if (action == UP_OBJ_FACE)
732	/* Nothing to do for that case */ ;	773	/* Nothing to do for that case */ ;
733	else	774	else
734	LOG (llevError, "update_object called with invalid action: %d\n", action);	775	LOG (llevError, "update_object called with invalid action: %d\n", action);
735		776
736	if (op->more)	777	if (op->more)
737	update_object (op->more, action);	778	update_object (op->more, action);
738	}	779	}
739		780
740	object::vector object::objects; // not yet used
741	object *object::first;
742
743	object::object ()	781	object::object ()
744	{	782	{
745	SET_FLAG (this, FLAG_REMOVED);	783	this->set_flag (FLAG_REMOVED);
746		784
747	expmul = 1.0;	785	//expmul = 1.0; declared const for the time being
748	face = blank_face;	786	face = blank_face;
		787	material = MATERIAL_NULL;
749	}	788	}
750		789
751	object::~object ()	790	object::~object ()
752	{	791	{
753	free_key_values (this);	792	unlink ();
		793
		794	kv.clear ();
754	}	795	}
755		796
756	void object::link ()	797	void object::link ()
757	{	798	{
758	count = ++ob_count;	799	assert (!index);//D
759	uuid = gen_uuid ();	800	uuid = UUID::gen ();
760		801
761	prev = 0;	802	refcnt_inc ();
762	next = object::first;	803	objects.insert (this);
763		804
764	if (object::first)	805	++create_count;
765	object::first->prev = this;
766		806
767	object::first = this;
768	}	807	}
769		808
770	void object::unlink ()	809	void object::unlink ()
771	{	810	{
772	if (this == object::first)	811	if (!index)
773	object::first = next;
774
775	/* Remove this object from the list of used objects */
776	if (prev) prev->next = next;
777	if (next) next->prev = prev;
778
779	prev = 0;
780	next = 0;
781	}
782
783	object *object::create ()
784	{
785	object *op = new object;
786	op->link ();
787	return op;
788	}
789
790	void
791	object::do_destroy ()
792	{
793	attachable::do_destroy ();
794
795	if (flag [FLAG_IS_LINKED])
796	remove_button_link (this);
797
798	if (flag [FLAG_FRIENDLY])
799	remove_friendly_object (this);
800
801	if (!flag [FLAG_REMOVED])
802	remove ();
803
804	if (flag [FLAG_FREED])
805	return;	812	return;
806		813
807	flag [FLAG_FREED] = 1;	814	++destroy_count;
808		815
809	// hack to ensure that freed objects still have a valid map	816	objects.erase (this);
810	{	817	refcnt_dec ();
811	static maptile *freed_map; // freed objects are moved here to avoid crashes	818	}
812		819
813	if (!freed_map)	820	void
		821	object::activate ()
		822	{
		823	/* If already on active list, don't do anything */
		824	if (active)
		825	return;
		826
		827	if (has_active_speed ())
814	{	828	{
815	freed_map = new maptile;	829	if (flag [FLAG_FREED])
		830	LOG (llevError | logBacktrace, "BUG: tried to activate freed object %s\n", debug_desc ());//D
816		831
817	freed_map->name = "/internal/freed_objects_map";	832	actives.insert (this);
818	freed_map->width = 3;
819	freed_map->height = 3;
820
821	freed_map->allocate ();
822	}	833	}
		834	}
823		835
824	map = freed_map;	836	void
825	x = 1;	837	object::activate_recursive ()
826	y = 1;	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);
827	}	879	}
828
829	more = 0;
830	head = 0;
831	inv = 0;
832
833	// clear those pointers that likely might have circular references to us
834	owner = 0;
835	enemy = 0;
836	attacked_by = 0;
837
838	// only relevant for players(?), but make sure of it anyways
839	contr = 0;
840
841	/* Remove object from the active list */
842	set_speed (0);
843
844	unlink ();
845	}	880	}
846		881
847	/*	882	/*
848	* Remove and free all objects in the inventory of the given object.	883	* Remove and free all objects in the inventory of the given object.
849	* object.c ?	884	* object.c ?
850	*/	885	*/
851	void	886	void
852	object::destroy_inv (bool drop_to_ground)	887	object::destroy_inv (bool drop_to_ground)
853	{	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
854	if (!inv)	894	if (!inv)
855	return;	895	return;
856		896
857	/* Only if the space blocks everything do we not process -	897	/* Only if the space blocks everything do we not process -
858	* if some form of movement is allowed, let objects	898	* if some form of movement is allowed, let objects
859	* drop on that space.	899	* drop on that space.
860	*/	900	*/
861	if (!drop_to_ground || !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->in_memory != MAP_ACTIVE
		904	|| map->no_drop
		905	|| ms ().move_block == MOVE_ALL)
862	{	906	{
863	while (inv)	907	while (inv)
864	{
865	inv->destroy_inv (drop_to_ground);
866	inv->destroy ();	908	inv->destroy ();
867	}
868	}	909	}
869	else	910	else
870	{ /* Put objects in inventory onto this space */	911	{ /* Put objects in inventory onto this space */
871	while (inv)	912	while (inv)
872	{	913	{
…		…
874		915
875	if (op->flag [FLAG_STARTEQUIP]	916	if (op->flag [FLAG_STARTEQUIP]
876	|| op->flag [FLAG_NO_DROP]	917	|| op->flag [FLAG_NO_DROP]
877	|| op->type == RUNE	918	|| op->type == RUNE
878	|| op->type == TRAP	919	|| op->type == TRAP
879	|| op->flag [FLAG_IS_A_TEMPLATE])	920	|| op->flag [FLAG_IS_A_TEMPLATE]
		921	|| op->flag [FLAG_DESTROY_ON_DEATH])
880	op->destroy ();	922	op->destroy ();
881	else	923	else
882	{	924	map->insert (op, x, y);
883	op->remove ();
884	op->x = x;
885	op->y = y;
886	insert_ob_in_map (op, map, 0, 0); /* Insert in same map as the envir */
887	}
888	}	925	}
889	}	926	}
890	}	927	}
891		928
		929	/*
		930	* Remove and free all objects in the inventory of the given object.
		931	* Unlike destroy_inv, this assumes the *this is destroyed as well
		932	* well, so we can (and have to!) take shortcuts.
		933	*/
892	void	934	void
893	object::destroy (bool destroy_inventory)	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;
		944
		945	// then destroy
		946	op->destroy ();
		947	}
		948	}
		949
		950	void
		951	object::freelist_free (int count)
		952	{
		953	while (count-- && freelist)
		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	static struct freed_map : maptile
		1011	{
		1012	freed_map ()
		1013	: maptile (3, 3)
		1014	{
		1015	path = "<freed objects map>";
		1016	name = "/internal/freed_objects_map";
		1017	no_drop = 1;
		1018	no_reset = 1;
		1019
		1020	in_memory = MAP_ACTIVE;
		1021	}
		1022
		1023	~freed_map ()
		1024	{
		1025	destroy ();
		1026	}
		1027	} freed_map; // freed objects are moved here to avoid crashes
		1028
		1029	void
		1030	object::do_destroy ()
		1031	{
		1032	if (flag [FLAG_IS_LINKED])
		1033	remove_link ();
		1034
		1035	if (flag [FLAG_FRIENDLY])
		1036	remove_friendly_object (this);
		1037
		1038	remove ();
		1039
		1040	attachable::do_destroy ();
		1041
		1042	deactivate ();
		1043	unlink ();
		1044
		1045	flag [FLAG_FREED] = 1;
		1046
		1047	// hack to ensure that freed objects still have a valid map
		1048	map = &freed_map;
		1049	x = 1;
		1050	y = 1;
		1051
		1052	if (more)
		1053	{
		1054	more->destroy ();
		1055	more = 0;
		1056	}
		1057
		1058	head = 0;
		1059
		1060	// clear those pointers that likely might cause circular references
		1061	owner = 0;
		1062	enemy = 0;
		1063	attacked_by = 0;
		1064	current_weapon = 0;
		1065	}
		1066
		1067	void
		1068	object::destroy ()
894	{	1069	{
895	if (destroyed ())	1070	if (destroyed ())
896	return;	1071	return;
897		1072
898	if (more)	1073	if (!is_head () && !head->destroyed ())
899	{
900	//TODO: non-head objects must not have inventory
901	more->destroy (destroy_inventory);
902	more = 0;
903	}	1074	{
		1075	LOG (llevError | logBacktrace, "tried to destroy the tail of an object");
		1076	head->destroy ();
		1077	return;
		1078	}
904		1079
905	if (destroy_inventory)
906	destroy_inv (true);	1080	destroy_inv_fast ();
		1081
		1082	if (is_head ())
		1083	if (sound_destroy)
		1084	play_sound (sound_destroy);
		1085	else if (flag [FLAG_MONSTER])
		1086	play_sound (sound_find ("monster_destroy")); // quick hack, too lazy to create a generic mechanism
907		1087
908	attachable::destroy ();	1088	attachable::destroy ();
909	}
910
911	/*
912	* sub_weight() recursively (outwards) subtracts a number from the
913	* weight of an object (and what is carried by it's environment(s)).
914	*/
915	void
916	sub_weight (object *op, signed long weight)
917	{
918	while (op != NULL)
919	{
920	if (op->type == CONTAINER)
921	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
922
923	op->carrying -= weight;
924	op = op->env;
925	}
926	}	1089	}
927		1090
928	/* op->remove ():	1091	/* op->remove ():
929	* This function removes the object op from the linked list of objects	1092	* This function removes the object op from the linked list of objects
930	* which it is currently tied to. When this function is done, the	1093	* which it is currently tied to. When this function is done, the
931	* object will have no environment. If the object previously had an	1094	* object will have no environment. If the object previously had an
932	* environment, the x and y coordinates will be updated to	1095	* environment, the x and y coordinates will be updated to
933	* the previous environment.	1096	* the previous environment.
934	* Beware: This function is called from the editor as well!
935	*/	1097	*/
936	void	1098	void
937	object::remove ()	1099	object::do_remove ()
938	{	1100	{
939	object *tmp, *last = 0;	1101	if (flag [FLAG_REMOVED])
940	object *otmp;
941
942	if (QUERY_FLAG (this, FLAG_REMOVED))
943	return;	1102	return;
944		1103
945	SET_FLAG (this, FLAG_REMOVED);
946	INVOKE_OBJECT (REMOVE, this);	1104	INVOKE_OBJECT (REMOVE, this);
		1105
		1106	flag [FLAG_REMOVED] = true;
947		1107
948	if (more)	1108	if (more)
949	more->remove ();	1109	more->remove ();
950		1110
951	/*	1111	/*
952	* In this case, the object to be removed is in someones	1112	* In this case, the object to be removed is in someones
953	* inventory.	1113	* inventory.
954	*/	1114	*/
955	if (env)	1115	if (env)
956	{	1116	{
957	if (nrof)	1117	flag [FLAG_REMOVED] = false; // hack around the issue of visible_to checking flag_removed
958	sub_weight (env, weight * nrof);	1118	if (object *pl = visible_to ())
959	else	1119	esrv_del_item (pl->contr, count);
960	sub_weight (env, weight + carrying);	1120	flag [FLAG_REMOVED] = true; // hack around the issue of visible_to checking flag_removed
961		1121
962	/* NO_FIX_PLAYER is set when a great many changes are being	1122	adjust_weight (env, total_weight (), 0);
963	* made to players inventory. If set, avoiding the call
964	* to save cpu time.
965	*/
966	if ((otmp = in_player ()) && otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
967	otmp->update_stats ();
968		1123
969	if (above != NULL)	1124	object *pl = in_player ();
970	above->below = below;
971	else
972	env->inv = below;
973
974	if (below != NULL)
975	below->above = above;
976		1125
977	/* we set up values so that it could be inserted into	1126	/* we set up values so that it could be inserted into
978	* the map, but we don't actually do that - it is up	1127	* the map, but we don't actually do that - it is up
979	* to the caller to decide what we want to do.	1128	* to the caller to decide what we want to do.
980	*/	1129	*/
981	x = env->x, y = env->y;
982	map = env->map;	1130	map = env->map;
983	above = 0, below = 0;	1131	x = env->x;
984	env = 0;	1132	y = env->y;
985	}
986	else if (map)
987	{
988	/* Re did the following section of code - it looks like it had
989	* lots of logic for things we no longer care about
990	*/
991		1133
992	/* link the object above us */	1134	// make sure cmov optimisation is applicable
993	if (above)	1135	*(above ? &above->below : &env->inv) = below;
994	above->below = below;	1136	*(below ? &below->above : &above ) = above; // &above is just a dummy
995	else
996	map->at (x, y).top = below; /* we were top, set new top */
997
998	/* Relink the object below us, if there is one */
999	if (below)
1000	below->above = above;
1001	else
1002	{
1003	/* Nothing below, which means we need to relink map object for this space
1004	* use translated coordinates in case some oddness with map tiling is
1005	* evident
1006	*/
1007	if (GET_MAP_OB (map, x, y) != this)
1008	{
1009	char *dump = dump_object (this);
1010	LOG (llevError,
1011	"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);
1012	free (dump);
1013	dump = dump_object (GET_MAP_OB (map, x, y));
1014	LOG (llevError, "%s\n", dump);
1015	free (dump);
1016	}
1017
1018	map->at (x, y).bot = above; /* goes on above it. */
1019	}
1020		1137
1021	above = 0;	1138	above = 0;
1022	below = 0;	1139	below = 0;
		1140	env = 0;
		1141
		1142	if (pl && pl->is_player ())
		1143	{
		1144	if (expect_false (pl->contr->combat_ob == this))
		1145	{
		1146	pl->apply (pl->contr->combat_ob, AP_UNAPPLY | AP_IGNORE_CURSE);
		1147	pl->contr->combat_ob = 0;
		1148	if (pl->contr->ranged_ob) pl->apply (pl->contr->ranged_ob);
		1149	}
		1150
		1151	if (expect_false (pl->contr->ranged_ob == this))
		1152	{
		1153	pl->apply (pl->contr->ranged_ob, AP_UNAPPLY | AP_IGNORE_CURSE);
		1154	pl->contr->ranged_ob = 0;
		1155	if (pl->contr->combat_ob) pl->apply (pl->contr->combat_ob);
		1156	}
		1157
		1158	pl->contr->queue_stats_update ();
		1159
		1160	if (expect_false (glow_radius) && pl->is_on_map ())
		1161	update_all_los (pl->map, pl->x, pl->y);
		1162	}
		1163	}
		1164	else if (map)
		1165	{
		1166	map->dirty = true;
		1167	mapspace &ms = this->ms ();
		1168
		1169	if (object *pl = ms.player ())
		1170	{
		1171	if (is_player ())
		1172	{
		1173	if (!flag [FLAG_WIZPASS])
		1174	ms.smell = ++mapspace::smellcount; // remember the smell of the player
		1175
		1176	// leaving a spot always closes any open container on the ground
		1177	if (container && !container->env)
		1178	// this causes spurious floorbox updates, but it ensures
		1179	// that the CLOSE event is being sent.
		1180	close_container ();
		1181
		1182	--map->players;
		1183	map->touch ();
		1184	}
		1185	else if (pl->container_ () == this)
		1186	{
		1187	// removing a container should close it
		1188	close_container ();
		1189	}
		1190	else
		1191	esrv_del_item (pl->contr, count);
		1192	}
		1193
		1194	/* link the object above us */
		1195	// re-link, make sure compiler can easily use cmove
		1196	*(above ? &above->below : &ms.top) = below;
		1197	*(below ? &below->above : &ms.bot) = above;
		1198
		1199	above = 0;
		1200	below = 0;
		1201
		1202	ms.invalidate ();
1023		1203
1024	if (map->in_memory == MAP_SAVING)	1204	if (map->in_memory == MAP_SAVING)
1025	return;	1205	return;
1026		1206
1027	int check_walk_off = !flag [FLAG_NO_APPLY];	1207	int check_walk_off = !flag [FLAG_NO_APPLY];
1028		1208
1029	for (tmp = GET_MAP_OB (map, x, y); tmp; tmp = tmp->above)	1209	if (object *pl = ms.player ())
1030	{	1210	{
1031	/* No point updating the players look faces if he is the object	1211	if (pl->container_ () == this)
1032	* being removed.
1033	*/
1034
1035	if (tmp->type == PLAYER && tmp != this)
1036	{
1037	/* If a container that the player is currently using somehow gets	1212	/* If a container that the player is currently using somehow gets
1038	* removed (most likely destroyed), update the player view	1213	* removed (most likely destroyed), update the player view
1039	* appropriately.	1214	* appropriately.
1040	*/	1215	*/
1041	if (tmp->container == this)	1216	pl->close_container ();
1042	{
1043	flag [FLAG_APPLIED] = 0;
1044	tmp->container = 0;
1045	}
1046		1217
		1218	//TODO: the floorbox prev/next might need updating
		1219	//esrv_del_item (pl->contr, count);
		1220	//TODO: update floorbox to preserve ordering
1047	if (tmp->contr->ns)	1221	if (pl->contr->ns)
1048	tmp->contr->ns->floorbox_update ();	1222	pl->contr->ns->floorbox_update ();
		1223	}
		1224
		1225	if (check_walk_off)
		1226	for (object *above, *tmp = ms.bot; tmp; tmp = above)
		1227	{
		1228	above = tmp->above;
		1229
		1230	/* No point updating the players look faces if he is the object
		1231	* being removed.
1049	}	1232	*/
1050		1233
1051	/* See if player moving off should effect something */	1234	/* See if object moving off should effect something */
1052	if (check_walk_off
1053	&& ((move_type & tmp->move_off)	1235	if ((move_type & tmp->move_off)
1054	&& (move_type & ~tmp->move_off & ~tmp->move_block) == 0))	1236	&& (move_type & ~tmp->move_off & ~tmp->move_block) == 0)
1055	{
1056	move_apply (tmp, this, 0);	1237	move_apply (tmp, this, 0);
1057
1058	if (destroyed ())
1059	LOG (llevError, "BUG: remove_ob(): name %s, destroyed leaving object\n", tmp->debug_desc ());
1060	}	1238	}
1061		1239
1062	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */	1240	if (affects_los ())
1063
1064	if (tmp->above == tmp)
1065	tmp->above = 0;
1066
1067	last = tmp;
1068	}
1069
1070	/* last == NULL of there are no objects on this space */
1071	if (!last)
1072	map->at (x, y).flags_ = P_NEED_UPDATE;
1073	else
1074	update_object (last, UP_OBJ_REMOVE);
1075
1076	if (flag [FLAG_BLOCKSVIEW] || glow_radius)
1077	update_all_los (map, x, y);	1241	update_all_los (map, x, y);
1078	}	1242	}
1079	}	1243	}
1080		1244
1081	/*	1245	/*
…		…
1090	merge_ob (object *op, object *top)	1254	merge_ob (object *op, object *top)
1091	{	1255	{
1092	if (!op->nrof)	1256	if (!op->nrof)
1093	return 0;	1257	return 0;
1094		1258
1095	if (top)	1259	if (!top)
1096	for (top = op; top && top->above; top = top->above)	1260	for (top = op; top && top->above; top = top->above)
1097	;	1261	;
1098		1262
1099	for (; top; top = top->below)	1263	for (; top; top = top->below)
1100	{
1101	if (top == op)
1102	continue;
1103
1104	if (object::can_merge (op, top))	1264	if (object::can_merge (op, top))
1105	{	1265	{
1106	top->nrof += op->nrof;	1266	top->nrof += op->nrof;
1107		1267
1108	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/	1268	if (object *pl = top->visible_to ())
1109	op->weight = 0; /* Don't want any adjustements now */	1269	esrv_update_item (UPD_NROF, pl, top);
		1270
		1271	op->weight = 0; // cancel the addition above
		1272	op->carrying = 0; // must be 0 already
		1273
1110	op->destroy ();	1274	op->destroy ();
		1275
1111	return top;	1276	return top;
1112	}	1277	}
1113	}
1114		1278
1115	return 0;	1279	return 0;
1116	}	1280	}
1117		1281
		1282	void
		1283	object::expand_tail ()
		1284	{
		1285	if (more)
		1286	return;
		1287
		1288	object *prev = this;
		1289
		1290	for (archetype *at = (archetype *)arch->more; at; at = (archetype *)at->more)
		1291	{
		1292	object *op = at->instance ();
		1293
		1294	op->name = name;
		1295	op->name_pl = name_pl;
		1296	op->title = title;
		1297
		1298	op->head = this;
		1299	prev->more = op;
		1300
		1301	prev = op;
		1302	}
		1303	}
		1304
1118	/*	1305	/*
1119	* same as insert_ob_in_map except it handle separate coordinates and do a clean	1306	* same as insert_ob_in_map except it handles separate coordinates and does a clean
1120	* job preparing multi-part monsters	1307	* job preparing multi-part monsters.
1121	*/	1308	*/
1122	object *	1309	object *
1123	insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)	1310	insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)
1124	{	1311	{
1125	object *tmp;	1312	op->remove ();
1126		1313
1127	if (op->head)
1128	op = op->head;
1129
1130	for (tmp = op; tmp; tmp = tmp->more)	1314	for (object *tmp = op->head_ (); tmp; tmp = tmp->more)
1131	{	1315	{
1132	tmp->x = x + tmp->arch->clone.x;	1316	tmp->x = x + tmp->arch->x;
1133	tmp->y = y + tmp->arch->clone.y;	1317	tmp->y = y + tmp->arch->y;
1134	}	1318	}
1135		1319
1136	return insert_ob_in_map (op, m, originator, flag);	1320	return insert_ob_in_map (op, m, originator, flag);
1137	}	1321	}
1138		1322
…		…
1151	* Passing 0 for flag gives proper default values, so flag really only needs	1335	* Passing 0 for flag gives proper default values, so flag really only needs
1152	* to be set if special handling is needed.	1336	* to be set if special handling is needed.
1153	*	1337	*
1154	* Return value:	1338	* Return value:
1155	* new object if 'op' was merged with other object	1339	* new object if 'op' was merged with other object
1156	* NULL if 'op' was destroyed	1340	* NULL if there was an error (destroyed, blocked etc.)
1157	* just 'op' otherwise	1341	* just 'op' otherwise
1158	*/	1342	*/
1159	object *	1343	object *
1160	insert_ob_in_map (object *op, maptile *m, object *originator, int flag)	1344	insert_ob_in_map (object *op, maptile *m, object *originator, int flag)
1161	{	1345	{
1162	object *tmp, *top, *floor = NULL;	1346	op->remove ();
1163	sint16 x, y;
1164		1347
1165	if (QUERY_FLAG (op, FLAG_FREED))	1348	if (m == &freed_map)//D TODO: remove soon
1166	{	1349	{//D
1167	LOG (llevError, "Trying to insert freed object!\n");	1350	LOG (llevError | logBacktrace, "tries to insret object on freed objects map: %s", op->debug_desc ());//D
1168	return NULL;
1169	}	1351	}//D
1170
1171	if (m == NULL)
1172	{
1173	char *dump = dump_object (op);
1174	LOG (llevError, "Trying to insert in null-map!\n%s\n", dump);
1175	free (dump);
1176	return op;
1177	}
1178
1179	if (out_of_map (m, op->x, op->y))
1180	{
1181	char *dump = dump_object (op);
1182	LOG (llevError, "Trying to insert object outside the map.\n%s\n", dump);
1183	#ifdef MANY_CORES
1184	/* Better to catch this here, as otherwise the next use of this object
1185	* is likely to cause a crash. Better to find out where it is getting
1186	* improperly inserted.
1187	*/
1188	abort ();
1189	#endif
1190	free (dump);
1191	return op;
1192	}
1193
1194	if (!QUERY_FLAG (op, FLAG_REMOVED))
1195	{
1196	char *dump = dump_object (op);
1197	LOG (llevError, "Trying to insert (map) inserted object.\n%s\n", dump);
1198	free (dump);
1199	return op;
1200	}
1201
1202	if (op->more)
1203	{
1204	/* The part may be on a different map. */
1205
1206	object *more = op->more;
1207
1208	/* We really need the caller to normalize coordinates - if
1209	* we set the map, that doesn't work if the location is within
1210	* a map and this is straddling an edge. So only if coordinate
1211	* is clear wrong do we normalize it.
1212	*/
1213	if (OUT_OF_REAL_MAP (more->map, more->x, more->y))
1214	more->map = get_map_from_coord (m, &more->x, &more->y);
1215	else if (!more->map)
1216	{
1217	/* For backwards compatibility - when not dealing with tiled maps,
1218	* more->map should always point to the parent.
1219	*/
1220	more->map = m;
1221	}
1222
1223	if (insert_ob_in_map (more, more->map, originator, flag) == NULL)
1224	{
1225	if (!op->head)
1226	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");
1227
1228	return 0;
1229	}
1230	}
1231
1232	CLEAR_FLAG (op, FLAG_REMOVED);
1233		1352
1234	/* Ideally, the caller figures this out. However, it complicates a lot	1353	/* Ideally, the caller figures this out. However, it complicates a lot
1235	* of areas of callers (eg, anything that uses find_free_spot would now	1354	* of areas of callers (eg, anything that uses find_free_spot would now
1236	* need extra work	1355	* need extra work
1237	*/	1356	*/
1238	op->map = get_map_from_coord (m, &op->x, &op->y);	1357	maptile *newmap = m;
1239	x = op->x;	1358	if (!xy_normalise (newmap, op->x, op->y))
1240	y = op->y;	1359	{
		1360	op->head_ ()->destroy ();// remove head_ once all tail object destroyers found
		1361	return 0;
		1362	}
		1363
		1364	if (object *more = op->more)
		1365	if (!insert_ob_in_map (more, m, originator, flag))
		1366	return 0;
		1367
		1368	op->flag [FLAG_REMOVED] = false;
		1369	op->env = 0;
		1370	op->map = newmap;
		1371
		1372	mapspace &ms = op->ms ();
1241		1373
1242	/* this has to be done after we translate the coordinates.	1374	/* this has to be done after we translate the coordinates.
1243	*/	1375	*/
1244	if (op->nrof && !(flag & INS_NO_MERGE))	1376	if (op->nrof && !(flag & INS_NO_MERGE))
1245	for (tmp = GET_MAP_OB (op->map, x, y); tmp != NULL; tmp = tmp->above)	1377	for (object *tmp = ms.bot; tmp; tmp = tmp->above)
1246	if (object::can_merge (op, tmp))	1378	if (object::can_merge (op, tmp))
1247	{	1379	{
		1380	// TODO: we actually want to update tmp, not op,
		1381	// but some caller surely breaks when we return tmp
		1382	// from here :/
1248	op->nrof += tmp->nrof;	1383	op->nrof += tmp->nrof;
1249	tmp->destroy ();	1384	tmp->destroy ();
1250	}	1385	}
1251		1386
1252	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */	1387	op->clr_flag (FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */
1253	CLEAR_FLAG (op, FLAG_INV_LOCKED);	1388	op->clr_flag (FLAG_INV_LOCKED);
1254		1389
1255	if (!QUERY_FLAG (op, FLAG_ALIVE))	1390	if (!op->flag [FLAG_ALIVE])
1256	CLEAR_FLAG (op, FLAG_NO_STEAL);	1391	op->clr_flag (FLAG_NO_STEAL);
1257		1392
1258	if (flag & INS_BELOW_ORIGINATOR)	1393	if (flag & INS_BELOW_ORIGINATOR)
1259	{	1394	{
1260	if (originator->map != op->map || originator->x != op->x || originator->y != op->y)	1395	if (originator->map != op->map || originator->x != op->x || originator->y != op->y)
1261	{	1396	{
1262	LOG (llevError, "insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");	1397	LOG (llevError, "insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");
1263	abort ();	1398	abort ();
1264	}	1399	}
1265		1400
		1401	if (!originator->is_on_map ())
		1402	{
		1403	LOG (llevError, "insert_ob_in_map(%s) called with INS_BELOW_ORIGINATOR when originator '%s' not on map",
		1404	op->debug_desc (), originator->debug_desc ());
		1405	abort ();
		1406	}
		1407
1266	op->above = originator;	1408	op->above = originator;
1267	op->below = originator->below;	1409	op->below = originator->below;
1268
1269	if (op->below)
1270	op->below->above = op;
1271	else
1272	op->ms ().bot = op;
1273
1274	/* since *below* originator, no need to update top */
1275	originator->below = op;	1410	originator->below = op;
		1411
		1412	*(op->below ? &op->below->above : &ms.bot) = op;
1276	}	1413	}
1277	else	1414	else
1278	{	1415	{
		1416	object *floor = 0;
		1417	object *top = ms.top;
		1418
1279	/* If there are other objects, then */	1419	/* If there are other objects, then */
1280	if ((!(flag & INS_MAP_LOAD)) && ((top = GET_MAP_OB (op->map, op->x, op->y)) != NULL))	1420	if (top)
1281	{	1421	{
1282	object *last = NULL;
1283
1284	/*	1422	/*
1285	* If there are multiple objects on this space, we do some trickier handling.	1423	* If there are multiple objects on this space, we do some trickier handling.
1286	* We've already dealt with merging if appropriate.	1424	* We've already dealt with merging if appropriate.
1287	* Generally, we want to put the new object on top. But if	1425	* Generally, we want to put the new object on top. But if
1288	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last	1426	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last
…		…
1291	* once we get to them. This reduces the need to traverse over all of	1429	* once we get to them. This reduces the need to traverse over all of
1292	* them when adding another one - this saves quite a bit of cpu time	1430	* them when adding another one - this saves quite a bit of cpu time
1293	* when lots of spells are cast in one area. Currently, it is presumed	1431	* when lots of spells are cast in one area. Currently, it is presumed
1294	* that flying non pickable objects are spell objects.	1432	* that flying non pickable objects are spell objects.
1295	*/	1433	*/
1296		1434	for (object *tmp = ms.bot; tmp; tmp = tmp->above)
1297	while (top != NULL)
1298	{	1435	{
1299	if (QUERY_FLAG (top, FLAG_IS_FLOOR) || QUERY_FLAG (top, FLAG_OVERLAY_FLOOR))	1436	if (tmp->flag [FLAG_IS_FLOOR] || tmp->flag [FLAG_OVERLAY_FLOOR])
1300	floor = top;	1437	floor = tmp;
1301		1438
1302	if (QUERY_FLAG (top, FLAG_NO_PICK) && (top->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (top, FLAG_IS_FLOOR))	1439	if (tmp->flag [FLAG_NO_PICK] && (tmp->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !tmp->flag [FLAG_IS_FLOOR])
1303	{	1440	{
1304	/* We insert above top, so we want this object below this */	1441	/* We insert above top, so we want this object below this */
1305	top = top->below;	1442	top = tmp->below;
1306	break;	1443	break;
1307	}	1444	}
1308		1445
1309	last = top;
1310	top = top->above;	1446	top = tmp;
1311	}	1447	}
1312
1313	/* Don't want top to be NULL, so set it to the last valid object */
1314	top = last;
1315		1448
1316	/* We let update_position deal with figuring out what the space	1449	/* We let update_position deal with figuring out what the space
1317	* looks like instead of lots of conditions here.	1450	* looks like instead of lots of conditions here.
1318	* makes things faster, and effectively the same result.	1451	* makes things faster, and effectively the same result.
1319	*/	1452	*/
1320		1453
1321	/* Have object 'fall below' other objects that block view.	1454	/* Have object 'fall below' other objects that block view.
1322	* Unless those objects are exits, type 66	1455	* Unless those objects are exits.
1323	* If INS_ON_TOP is used, don't do this processing	1456	* If INS_ON_TOP is used, don't do this processing
1324	* Need to find the object that in fact blocks view, otherwise	1457	* Need to find the object that in fact blocks view, otherwise
1325	* stacking is a bit odd.	1458	* stacking is a bit odd.
1326	*/	1459	*/
1327	if (!(flag & INS_ON_TOP) &&	1460	if (!(flag & INS_ON_TOP)
1328	(get_map_flags (op->map, 0, op->x, op->y, 0, 0) & P_BLOCKSVIEW) && (op->face && !op->face->visibility))	1461	&& ms.flags () & P_BLOCKSVIEW
		1462	&& (op->face && !faces [op->face].visibility))
1329	{	1463	{
		1464	object *last;
		1465
1330	for (last = top; last != floor; last = last->below)	1466	for (last = top; last != floor; last = last->below)
1331	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))	1467	if (last->flag [FLAG_BLOCKSVIEW] && (last->type != EXIT))
1332	break;	1468	break;
		1469
1333	/* Check to see if we found the object that blocks view,	1470	/* Check to see if we found the object that blocks view,
1334	* and make sure we have a below pointer for it so that	1471	* and make sure we have a below pointer for it so that
1335	* we can get inserted below this one, which requires we	1472	* we can get inserted below this one, which requires we
1336	* set top to the object below us.	1473	* set top to the object below us.
1337	*/	1474	*/
1338	if (last && last->below && last != floor)	1475	if (last && last->below && last != floor)
1339	top = last->below;	1476	top = last->below;
1340	}	1477	}
1341	} /* If objects on this space */	1478	} /* If objects on this space */
1342		1479
1343	if (flag & INS_MAP_LOAD)
1344	top = GET_MAP_TOP (op->map, op->x, op->y);
1345
1346	if (flag & INS_ABOVE_FLOOR_ONLY)	1480	if (flag & INS_ABOVE_FLOOR_ONLY)
1347	top = floor;	1481	top = floor;
1348		1482
1349	/* Top is the object that our object (op) is going to get inserted above.	1483	// insert object above top, or bottom-most if top = 0
1350	*/
1351
1352	/* First object on this space */
1353	if (!top)	1484	if (!top)
1354	{	1485	{
1355	op->above = GET_MAP_OB (op->map, op->x, op->y);
1356
1357	if (op->above)
1358	op->above->below = op;
1359
1360	op->below = NULL;	1486	op->below = 0;
		1487	op->above = ms.bot;
1361	op->ms ().bot = op;	1488	ms.bot = op;
		1489
		1490	*(op->above ? &op->above->below : &ms.top) = op;
1362	}	1491	}
1363	else	1492	else
1364	{ /* get inserted into the stack above top */	1493	{
1365	op->above = top->above;	1494	op->above = top->above;
1366
1367	if (op->above)
1368	op->above->below = op;	1495	top->above = op;
1369		1496
1370	op->below = top;	1497	op->below = top;
1371	top->above = op;	1498	*(op->above ? &op->above->below : &ms.top) = op;
1372	}	1499	}
		1500	}
1373		1501
1374	if (op->above == NULL)	1502	if (op->is_player ())
1375	op->ms ().top = op;	1503	{
1376	} /* else not INS_BELOW_ORIGINATOR */
1377
1378	if (op->type == PLAYER)
1379	op->contr->do_los = 1;	1504	op->contr->do_los = 1;
		1505	++op->map->players;
		1506	op->map->touch ();
		1507	}
1380		1508
1381	/* If we have a floor, we know the player, if any, will be above	1509	op->map->dirty = true;
1382	* it, so save a few ticks and start from there.	1510
1383	*/
1384	if (!(flag & INS_MAP_LOAD))
1385	if (object *pl = op->ms ().player ())	1511	if (object *pl = ms.player ())
		1512	//TODO: the floorbox prev/next might need updating
		1513	//esrv_send_item (pl, op);
		1514	//TODO: update floorbox to preserve ordering
1386	if (pl->contr->ns)	1515	if (pl->contr->ns)
1387	pl->contr->ns->floorbox_update ();	1516	pl->contr->ns->floorbox_update ();
1388		1517
1389	/* If this object glows, it may affect lighting conditions that are	1518	/* If this object glows, it may affect lighting conditions that are
1390	* visible to others on this map. But update_all_los is really	1519	* visible to others on this map. But update_all_los is really
1391	* an inefficient way to do this, as it means los for all players	1520	* an inefficient way to do this, as it means los for all players
1392	* on the map will get recalculated. The players could very well	1521	* on the map will get recalculated. The players could very well
1393	* be far away from this change and not affected in any way -	1522	* be far away from this change and not affected in any way -
1394	* this should get redone to only look for players within range,	1523	* this should get redone to only look for players within range,
1395	* or just updating the P_NEED_UPDATE for spaces within this area	1524	* or just updating the P_UPTODATE for spaces within this area
1396	* of effect may be sufficient.	1525	* of effect may be sufficient.
1397	*/	1526	*/
1398	if (op->map->darkness && (op->glow_radius != 0))	1527	if (op->affects_los ())
		1528	{
		1529	op->ms ().invalidate ();
1399	update_all_los (op->map, op->x, op->y);	1530	update_all_los (op->map, op->x, op->y);
		1531	}
1400		1532
1401	/* updates flags (blocked, alive, no magic, etc) for this map space */	1533	/* updates flags (blocked, alive, no magic, etc) for this map space */
1402	update_object (op, UP_OBJ_INSERT);	1534	update_object (op, UP_OBJ_INSERT);
1403		1535
1404	INVOKE_OBJECT (INSERT, op);	1536	INVOKE_OBJECT (INSERT, op);
…		…
1411	* blocked() and wall() work properly), and these flags are updated by	1543	* blocked() and wall() work properly), and these flags are updated by
1412	* update_object().	1544	* update_object().
1413	*/	1545	*/
1414		1546
1415	/* if this is not the head or flag has been passed, don't check walk on status */	1547	/* if this is not the head or flag has been passed, don't check walk on status */
1416	if (!(flag & INS_NO_WALK_ON) && !op->head)	1548	if (!(flag & INS_NO_WALK_ON) && op->is_head ())
1417	{	1549	{
1418	if (check_move_on (op, originator))	1550	if (check_move_on (op, originator, flag))
1419	return 0;	1551	return 0;
1420		1552
1421	/* If we are a multi part object, lets work our way through the check	1553	/* If we are a multi part object, let's work our way through the check
1422	* walk on's.	1554	* walk on's.
1423	*/	1555	*/
1424	for (tmp = op->more; tmp != NULL; tmp = tmp->more)	1556	for (object *tmp = op->more; tmp; tmp = tmp->more)
1425	if (check_move_on (tmp, originator))	1557	if (check_move_on (tmp, originator, flag))
1426	return 0;	1558	return 0;
1427	}	1559	}
1428		1560
1429	return op;	1561	return op;
1430	}	1562	}
…		…
1432	/* this function inserts an object in the map, but if it	1564	/* this function inserts an object in the map, but if it
1433	* finds an object of its own type, it'll remove that one first.	1565	* finds an object of its own type, it'll remove that one first.
1434	* op is the object to insert it under: supplies x and the map.	1566	* op is the object to insert it under: supplies x and the map.
1435	*/	1567	*/
1436	void	1568	void
1437	replace_insert_ob_in_map (const char *arch_string, object *op)	1569	replace_insert_ob_in_map (shstr_tmp archname, object *op)
1438	{	1570	{
1439	object *tmp, *tmp1;
1440
1441	/* first search for itself and remove any old instances */	1571	/* first search for itself and remove any old instances */
1442		1572
1443	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)	1573	for (object *tmp = op->ms ().bot; tmp; tmp = tmp->above)
1444	if (!strcmp (tmp->arch->name, arch_string)) /* same archetype */	1574	if (tmp->arch->archname == archname) /* same archetype */
1445	tmp->destroy ();	1575	tmp->destroy ();
1446		1576
1447	tmp1 = arch_to_object (archetype::find (arch_string));	1577	object *tmp = archetype::find (archname)->instance ();
1448		1578
1449	tmp1->x = op->x;	1579	tmp->x = op->x;
1450	tmp1->y = op->y;	1580	tmp->y = op->y;
		1581
1451	insert_ob_in_map (tmp1, op->map, op, 0);	1582	insert_ob_in_map (tmp, op->map, op, 0);
1452	}	1583	}
1453
1454	/*
1455	* get_split_ob(ob,nr) splits up ob into two parts. The part which
1456	* is returned contains nr objects, and the remaining parts contains
1457	* the rest (or is removed and freed if that number is 0).
1458	* On failure, NULL is returned, and the reason put into the
1459	* global static errmsg array.
1460	*/
1461		1584
1462	object *	1585	object *
1463	get_split_ob (object *orig_ob, uint32 nr)	1586	object::insert_at (object *where, object *originator, int flags)
1464	{	1587	{
1465	object *newob;	1588	if (where->env)
1466	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);	1589	return where->env->insert (this);
1467		1590	else
1468	if (orig_ob->nrof < nr)	1591	return where->map->insert (this, where->x, where->y, originator, flags);
1469	{
1470	sprintf (errmsg, "There are only %d %ss.", orig_ob->nrof ? orig_ob->nrof : 1, &orig_ob->name);
1471	return NULL;
1472	}
1473
1474	newob = object_create_clone (orig_ob);
1475
1476	if ((orig_ob->nrof -= nr) < 1)
1477	orig_ob->destroy (1);
1478	else if (!is_removed)
1479	{
1480	if (orig_ob->env != NULL)
1481	sub_weight (orig_ob->env, orig_ob->weight * nr);
1482	if (orig_ob->env == NULL && orig_ob->map->in_memory != MAP_IN_MEMORY)
1483	{
1484	strcpy (errmsg, "Tried to split object whose map is not in memory.");
1485	LOG (llevDebug, "Error, Tried to split object whose map is not in memory.\n");
1486	return NULL;
1487	}
1488	}
1489
1490	newob->nrof = nr;
1491
1492	return newob;
1493	}	1592	}
1494		1593
		1594	// check whether we can put this into the map, respect max_volume, max_items
		1595	bool
		1596	object::can_drop_at (maptile *m, int x, int y, object *originator)
		1597	{
		1598	mapspace &ms = m->at (x, y);
		1599
		1600	int items = ms.items ();
		1601
		1602	if (!items // testing !items ensures we can drop at least one item
		1603	|| (items < m->max_items
		1604	&& ms.volume () < m->max_volume))
		1605	return true;
		1606
		1607	if (originator && originator->is_player ())
		1608	originator->contr->failmsgf (
		1609	"No matter how hard you try, you just cannot put the %s here H<Try to remove some items from the floor first.>",
		1610	query_name ()
		1611	);
		1612
		1613	return false;
		1614	}
		1615
1495	/*	1616	/*
1496	* decrease_ob_nr(object, number) decreases a specified number from	1617	* decrease(object, number) decreases a specified number from
1497	* the amount of an object. If the amount reaches 0, the object	1618	* the amount of an object. If the amount reaches 0, the object
1498	* is subsequently removed and freed.	1619	* is subsequently removed and freed.
1499	*	1620	*
1500	* Return value: 'op' if something is left, NULL if the amount reached 0	1621	* Return value: 'op' if something is left, NULL if the amount reached 0
1501	*/	1622	*/
		1623	bool
		1624	object::decrease (sint32 nr)
		1625	{
		1626	if (!nr)
		1627	return true;
1502		1628
		1629	nr = min (nr, nrof);
		1630
		1631	if (nrof > nr)
		1632	{
		1633	sint64 oweight = total_weight ();
		1634
		1635	nrof -= nr;
		1636
		1637	if (object *pl = visible_to ())
		1638	esrv_update_item (UPD_NROF, pl, this);
		1639
		1640	adjust_weight (env, oweight, total_weight ());
		1641
		1642	return true;
		1643	}
		1644	else
		1645	{
		1646	destroy ();
		1647	return false;
		1648	}
		1649	}
		1650
		1651	/*
		1652	* split(ob,nr) splits up ob into two parts. The part which
		1653	* is returned contains nr objects, and the remaining parts contains
		1654	* the rest (or is removed and returned if that number is 0).
		1655	* On failure, NULL is returned.
		1656	*/
1503	object *	1657	object *
1504	decrease_ob_nr (object *op, uint32 i)	1658	object::split (sint32 nr)
1505	{	1659	{
1506	object *tmp;	1660	int have = number_of ();
1507		1661
1508	if (i == 0) /* objects with op->nrof require this check */	1662	if (have < nr)
1509	return op;	1663	return 0;
1510		1664	else if (have == nr)
1511	if (i > op->nrof)
1512	i = op->nrof;
1513
1514	if (QUERY_FLAG (op, FLAG_REMOVED))
1515	op->nrof -= i;
1516	else if (op->env)
1517	{	1665	{
1518	/* is this object in the players inventory, or sub container
1519	* therein?
1520	*/
1521	tmp = op->in_player ();
1522	/* nope. Is this a container the player has opened?
1523	* If so, set tmp to that player.
1524	* IMO, searching through all the players will mostly
1525	* likely be quicker than following op->env to the map,
1526	* and then searching the map for a player.
1527	*/
1528	if (!tmp)
1529	for_all_players (pl)
1530	if (pl->ob->container == op->env)
1531	{
1532	tmp = pl->ob;
1533	break;
1534	}
1535
1536	if (i < op->nrof)
1537	{
1538	sub_weight (op->env, op->weight * i);
1539	op->nrof -= i;
1540	if (tmp)
1541	esrv_send_item (tmp, op);
1542	}
1543	else
1544	{
1545	op->remove ();	1666	remove ();
1546	op->nrof = 0;	1667	return this;
1547	if (tmp)
1548	esrv_del_item (tmp->contr, op->count);
1549	}
1550	}	1668	}
1551	else	1669	else
1552	{	1670	{
1553	object *above = op->above;	1671	decrease (nr);
1554		1672
1555	if (i < op->nrof)	1673	object *op = deep_clone ();
1556	op->nrof -= i;	1674	op->nrof = nr;
1557	else
1558	{
1559	op->remove ();
1560	op->nrof = 0;
1561	}
1562
1563	/* Since we just removed op, op->above is null */
1564	for (tmp = above; tmp; tmp = tmp->above)
1565	if (tmp->type == PLAYER)
1566	{
1567	if (op->nrof)
1568	esrv_send_item (tmp, op);
1569	else
1570	esrv_del_item (tmp->contr, op->count);
1571	}
1572	}
1573
1574	if (op->nrof)
1575	return op;	1675	return op;
1576	else
1577	{
1578	op->destroy ();
1579	return 0;
1580	}
1581	}
1582
1583	/*
1584	* add_weight(object, weight) adds the specified weight to an object,
1585	* and also updates how much the environment(s) is/are carrying.
1586	*/
1587
1588	void
1589	add_weight (object *op, signed long weight)
1590	{
1591	while (op != NULL)
1592	{
1593	if (op->type == CONTAINER)
1594	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1595
1596	op->carrying += weight;
1597	op = op->env;
1598	}	1676	}
1599	}	1677	}
1600		1678
1601	object *	1679	object *
1602	insert_ob_in_ob (object *op, object *where)	1680	insert_ob_in_ob (object *op, object *where)
…		…
1607	LOG (llevError, "Trying to put object in NULL.\n%s\n", dump);	1685	LOG (llevError, "Trying to put object in NULL.\n%s\n", dump);
1608	free (dump);	1686	free (dump);
1609	return op;	1687	return op;
1610	}	1688	}
1611		1689
1612	if (where->head)	1690	if (where->head_ () != where)
1613	{	1691	{
1614	LOG (llevDebug, "Warning: Tried to insert object into wrong part of multipart object.\n");	1692	LOG (llevError | logBacktrace, "Warning: Tried to insert object into wrong part of multipart object.\n");
1615	where = where->head;	1693	where = where->head;
1616	}	1694	}
1617		1695
1618	return where->insert (op);	1696	return where->insert (op);
1619	}	1697	}
…		…
1624	* inside the object environment.	1702	* inside the object environment.
1625	*	1703	*
1626	* The function returns now pointer to inserted item, and return value can	1704	* The function returns now pointer to inserted item, and return value can
1627	* be != op, if items are merged. -Tero	1705	* be != op, if items are merged. -Tero
1628	*/	1706	*/
1629
1630	object *	1707	object *
1631	object::insert (object *op)	1708	object::insert (object *op)
1632	{	1709	{
1633	object *tmp, *otmp;
1634
1635	if (!QUERY_FLAG (op, FLAG_REMOVED))
1636	op->remove ();
1637
1638	if (op->more)	1710	if (op->more)
1639	{	1711	{
1640	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);	1712	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);
1641	return op;	1713	return op;
1642	}	1714	}
1643		1715
1644	CLEAR_FLAG (op, FLAG_OBJ_ORIGINAL);	1716	op->remove ();
1645	CLEAR_FLAG (op, FLAG_REMOVED);	1717
		1718	op->flag [FLAG_OBJ_ORIGINAL] = 0;
		1719
1646	if (op->nrof)	1720	if (op->nrof)
1647	{
1648	for (tmp = inv; tmp != NULL; tmp = tmp->below)	1721	for (object *tmp = inv; tmp; tmp = tmp->below)
1649	if (object::can_merge (tmp, op))	1722	if (object::can_merge (tmp, op))
1650	{	1723	{
1651	/* return the original object and remove inserted object	1724	/* return the original object and remove inserted object
1652	(client needs the original object) */	1725	(client prefers the original object) */
		1726
		1727	// carring must be 0 for mergable objects
		1728	sint64 oweight = tmp->weight * tmp->nrof;
		1729
1653	tmp->nrof += op->nrof;	1730	tmp->nrof += op->nrof;
1654	/* Weight handling gets pretty funky. Since we are adding to	1731
1655	* tmp->nrof, we need to increase the weight.	1732	if (object *pl = tmp->visible_to ())
1656	*/	1733	esrv_update_item (UPD_NROF, pl, tmp);
		1734
1657	add_weight (this, op->weight * op->nrof);	1735	adjust_weight (this, oweight, tmp->weight * tmp->nrof);
1658	SET_FLAG (op, FLAG_REMOVED);	1736
1659	op->destroy (); /* free the inserted object */	1737	op->destroy ();
1660	op = tmp;	1738	op = tmp;
1661	op->remove (); /* and fix old object's links */	1739	goto inserted;
1662	CLEAR_FLAG (op, FLAG_REMOVED);
1663	break;
1664	}	1740	}
1665		1741
1666	/* I assume combined objects have no inventory	1742	op->owner = 0; // it's his/hers now. period.
1667	* We add the weight - this object could have just been removed
1668	* (if it was possible to merge). calling remove_ob will subtract
1669	* the weight, so we need to add it in again, since we actually do
1670	* the linking below
1671	*/
1672	add_weight (this, op->weight * op->nrof);
1673	}
1674	else
1675	add_weight (this, (op->weight + op->carrying));
1676
1677	otmp = this->in_player ();
1678	if (otmp && otmp->contr)
1679	if (!QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1680	otmp->update_stats ();
1681
1682	op->map = 0;	1743	op->map = 0;
1683	op->env = this;	1744	op->x = 0;
		1745	op->y = 0;
		1746
1684	op->above = 0;	1747	op->above = 0;
1685	op->below = 0;	1748	op->below = inv;
1686	op->x = 0, op->y = 0;	1749	op->env = this;
1687		1750
		1751	if (inv)
		1752	inv->above = op;
		1753
		1754	inv = op;
		1755
		1756	op->flag [FLAG_REMOVED] = 0;
		1757
		1758	if (object *pl = op->visible_to ())
		1759	esrv_send_item (pl, op);
		1760
		1761	adjust_weight (this, 0, op->total_weight ());
		1762
		1763	inserted:
1688	/* reset the light list and los of the players on the map */	1764	/* reset the light list and los of the players on the map */
1689	if ((op->glow_radius != 0) && map)	1765	if (op->glow_radius && is_on_map ())
1690	{	1766	{
1691	#ifdef DEBUG_LIGHTS	1767	update_stats ();
1692	LOG (llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n", op->name);
1693	#endif /* DEBUG_LIGHTS */
1694	if (map->darkness)
1695	update_all_los (map, x, y);	1768	update_all_los (map, x, y);
1696	}
1697
1698	/* Client has no idea of ordering so lets not bother ordering it here.
1699	* It sure simplifies this function...
1700	*/
1701	if (!inv)
1702	inv = op;
1703	else
1704	{	1769	}
1705	op->below = inv;	1770	else if (is_player ())
1706	op->below->above = op;	1771	// if this is a player's inventory, update stats
1707	inv = op;	1772	contr->queue_stats_update ();
1708	}
1709		1773
1710	INVOKE_OBJECT (INSERT, this);	1774	INVOKE_OBJECT (INSERT, this);
1711		1775
1712	return op;	1776	return op;
1713	}	1777	}
…		…
1730	*	1794	*
1731	* MSW 2001-07-08: Check all objects on space, not just those below	1795	* MSW 2001-07-08: Check all objects on space, not just those below
1732	* object being inserted. insert_ob_in_map may not put new objects	1796	* object being inserted. insert_ob_in_map may not put new objects
1733	* on top.	1797	* on top.
1734	*/	1798	*/
1735
1736	int	1799	int
1737	check_move_on (object *op, object *originator)	1800	check_move_on (object *op, object *originator, int flags)
1738	{	1801	{
		1802	if (op->flag [FLAG_NO_APPLY])
		1803	return 0;
		1804
1739	object *tmp;	1805	object *tmp;
1740	maptile *m = op->map;	1806	maptile *m = op->map;
1741	int x = op->x, y = op->y;	1807	int x = op->x, y = op->y;
1742		1808
1743	MoveType move_on, move_slow, move_block;	1809	mapspace &ms = m->at (x, y);
1744		1810
1745	if (QUERY_FLAG (op, FLAG_NO_APPLY))	1811	ms.update ();
1746	return 0;
1747		1812
1748	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);	1813	MoveType move_on = ms.move_on;
1749	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);	1814	MoveType move_slow = ms.move_slow;
1750	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);	1815	MoveType move_block = ms.move_block;
1751		1816
1752	/* if nothing on this space will slow op down or be applied,	1817	/* if nothing on this space will slow op down or be applied,
1753	* no need to do checking below. have to make sure move_type	1818	* no need to do checking below. have to make sure move_type
1754	* is set, as lots of objects don't have it set - we treat that	1819	* is set, as lots of objects don't have it set - we treat that
1755	* as walking.	1820	* as walking.
…		…
1766	return 0;	1831	return 0;
1767		1832
1768	/* The objects have to be checked from top to bottom.	1833	/* The objects have to be checked from top to bottom.
1769	* Hence, we first go to the top:	1834	* Hence, we first go to the top:
1770	*/	1835	*/
1771		1836	for (object *next, *tmp = ms.top; tmp; tmp = next)
1772	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp && tmp->above; tmp = tmp->above)
1773	{
1774	/* Trim the search when we find the first other spell effect
1775	* this helps performance so that if a space has 50 spell objects,
1776	* we don't need to check all of them.
1777	*/
1778	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG (tmp, FLAG_NO_PICK))
1779	break;
1780	}	1837	{
		1838	next = tmp->below;
1781		1839
1782	for (; tmp; tmp = tmp->below)
1783	{
1784	if (tmp == op)	1840	if (tmp == op)
1785	continue; /* Can't apply yourself */	1841	continue; /* Can't apply yourself */
1786		1842
1787	/* Check to see if one of the movement types should be slowed down.	1843	/* Check to see if one of the movement types should be slowed down.
1788	* Second check makes sure that the movement types not being slowed	1844	* Second check makes sure that the movement types not being slowed
1789	* (~slow_move) is not blocked on this space - just because the	1845	* (~slow_move) is not blocked on this space - just because the
1790	* space doesn't slow down swimming (for example), if you can't actually	1846	* space doesn't slow down swimming (for example), if you can't actually
1791	* swim on that space, can't use it to avoid the penalty.	1847	* swim on that space, can't use it to avoid the penalty.
1792	*/	1848	*/
1793	if (!QUERY_FLAG (op, FLAG_WIZPASS))	1849	if (!op->flag [FLAG_WIZPASS])
1794	{	1850	{
1795	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||	1851	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||
1796	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))	1852	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))
1797	{	1853	{
1798
1799	float
1800	diff = tmp->move_slow_penalty * FABS (op->speed);	1854	float diff = tmp->move_slow_penalty * fabs (op->speed);
1801		1855
1802	if (op->type == PLAYER)	1856	if (op->is_player ())
1803	if ((QUERY_FLAG (tmp, FLAG_IS_HILLY) && find_skill_by_number (op, SK_CLIMBING)) ||	1857	if ((tmp->flag [FLAG_IS_HILLY ] && find_skill_by_number (op, SK_CLIMBING)) ||
1804	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))	1858	(tmp->flag [FLAG_IS_WOODED] && find_skill_by_number (op, SK_WOODSMAN)))
1805	diff /= 4.0;	1859	diff /= 4.0;
1806		1860
1807	op->speed_left -= diff;	1861	op->speed_left -= diff;
1808	}	1862	}
1809	}	1863	}
1810		1864
1811	/* Basically same logic as above, except now for actual apply. */	1865	/* Basically same logic as above, except now for actual apply. */
1812	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||	1866	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||
1813	((op->move_type & tmp->move_on) && (op->move_type & ~tmp->move_on & ~tmp->move_block) == 0))	1867	((op->move_type & tmp->move_on) && (op->move_type & ~tmp->move_on & ~tmp->move_block) == 0))
1814	{	1868	{
		1869	if ((flags & INS_NO_AUTO_EXIT)
		1870	&& (tmp->type == EXIT || tmp->type == TELEPORTER
		1871	|| tmp->type == HOLE || tmp->type == TRAPDOOR)) //TODO: temporary, fix exits instead
		1872	continue;
		1873
1815	move_apply (tmp, op, originator);	1874	move_apply (tmp, op, originator);
1816		1875
1817	if (op->destroyed ())	1876	if (op->destroyed ())
1818	return 1;	1877	return 1;
1819		1878
…		…
1835	* The first matching object is returned, or NULL if none.	1894	* The first matching object is returned, or NULL if none.
1836	*/	1895	*/
1837	object *	1896	object *
1838	present_arch (const archetype *at, maptile *m, int x, int y)	1897	present_arch (const archetype *at, maptile *m, int x, int y)
1839	{	1898	{
1840	if (m == NULL || out_of_map (m, x, y))	1899	if (!m || out_of_map (m, x, y))
1841	{	1900	{
1842	LOG (llevError, "Present_arch called outside map.\n");	1901	LOG (llevError, "Present_arch called outside map.\n");
1843	return NULL;	1902	return NULL;
1844	}	1903	}
1845		1904
1846	for (object *tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)	1905	for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)
1847	if (tmp->arch == at)	1906	if (tmp->arch->archname == at->archname)
1848	return tmp;	1907	return tmp;
1849		1908
1850	return NULL;	1909	return NULL;
1851	}	1910	}
1852		1911
…		…
1862	{	1921	{
1863	LOG (llevError, "Present called outside map.\n");	1922	LOG (llevError, "Present called outside map.\n");
1864	return NULL;	1923	return NULL;
1865	}	1924	}
1866		1925
1867	for (object *tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)	1926	for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)
1868	if (tmp->type == type)	1927	if (tmp->type == type)
1869	return tmp;	1928	return tmp;
1870		1929
1871	return NULL;	1930	return NULL;
1872	}	1931	}
…		…
1916	* The first matching object is returned, or NULL if none.	1975	* The first matching object is returned, or NULL if none.
1917	*/	1976	*/
1918	object *	1977	object *
1919	present_arch_in_ob (const archetype *at, const object *op)	1978	present_arch_in_ob (const archetype *at, const object *op)
1920	{	1979	{
1921	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)	1980	for (object *tmp = op->inv; tmp; tmp = tmp->below)
1922	if (tmp->arch == at)	1981	if (tmp->arch->archname == at->archname)
1923	return tmp;	1982	return tmp;
1924		1983
1925	return NULL;	1984	return NULL;
1926	}	1985	}
1927		1986
…		…
1929	* activate recursively a flag on an object inventory	1988	* activate recursively a flag on an object inventory
1930	*/	1989	*/
1931	void	1990	void
1932	flag_inv (object *op, int flag)	1991	flag_inv (object *op, int flag)
1933	{	1992	{
1934	if (op->inv)
1935	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)	1993	for (object *tmp = op->inv; tmp; tmp = tmp->below)
1936	{	1994	{
1937	SET_FLAG (tmp, flag);	1995	tmp->set_flag (flag);
1938	flag_inv (tmp, flag);	1996	flag_inv (tmp, flag);
1939	}	1997	}
1940	}	1998	}
1941		1999
1942	/*	2000	/*
1943	* deactivate recursively a flag on an object inventory	2001	* deactivate recursively a flag on an object inventory
1944	*/	2002	*/
1945	void	2003	void
1946	unflag_inv (object *op, int flag)	2004	unflag_inv (object *op, int flag)
1947	{	2005	{
1948	if (op->inv)
1949	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)	2006	for (object *tmp = op->inv; tmp; tmp = tmp->below)
1950	{	2007	{
1951	CLEAR_FLAG (tmp, flag);	2008	tmp->clr_flag (flag);
1952	unflag_inv (tmp, flag);	2009	unflag_inv (tmp, flag);
1953	}	2010	}
1954	}
1955
1956	/*
1957	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in
1958	* all it's inventory (recursively).
1959	* If checksums are used, a player will get set_cheat called for
1960	* him/her-self and all object carried by a call to this function.
1961	*/
1962	void
1963	set_cheat (object *op)
1964	{
1965	SET_FLAG (op, FLAG_WAS_WIZ);
1966	flag_inv (op, FLAG_WAS_WIZ);
1967	}	2011	}
1968		2012
1969	/*	2013	/*
1970	* find_free_spot(object, map, x, y, start, stop) will search for	2014	* find_free_spot(object, map, x, y, start, stop) will search for
1971	* a spot at the given map and coordinates which will be able to contain	2015	* a spot at the given map and coordinates which will be able to contain
…		…
1973	* to search (see the freearr_x/y[] definition).	2017	* to search (see the freearr_x/y[] definition).
1974	* It returns a random choice among the alternatives found.	2018	* It returns a random choice among the alternatives found.
1975	* start and stop are where to start relative to the free_arr array (1,9	2019	* start and stop are where to start relative to the free_arr array (1,9
1976	* does all 4 immediate directions). This returns the index into the	2020	* does all 4 immediate directions). This returns the index into the
1977	* array of the free spot, -1 if no spot available (dir 0 = x,y)	2021	* array of the free spot, -1 if no spot available (dir 0 = x,y)
1978	* Note - this only checks to see if there is space for the head of the
1979	* object - if it is a multispace object, this should be called for all
1980	* pieces.
1981	* Note2: This function does correctly handle tiled maps, but does not	2022	* Note: This function does correctly handle tiled maps, but does not
1982	* inform the caller. However, insert_ob_in_map will update as	2023	* inform the caller. However, insert_ob_in_map will update as
1983	* necessary, so the caller shouldn't need to do any special work.	2024	* necessary, so the caller shouldn't need to do any special work.
1984	* Note - updated to take an object instead of archetype - this is necessary	2025	* Note - updated to take an object instead of archetype - this is necessary
1985	* because arch_blocked (now ob_blocked) needs to know the movement type	2026	* because arch_blocked (now ob_blocked) needs to know the movement type
1986	* to know if the space in question will block the object. We can't use	2027	* to know if the space in question will block the object. We can't use
…		…
1988	* customized, changed states, etc.	2029	* customized, changed states, etc.
1989	*/	2030	*/
1990	int	2031	int
1991	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)	2032	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)
1992	{	2033	{
		2034	int altern[SIZEOFFREE];
1993	int index = 0, flag;	2035	int index = 0, flag;
1994	int altern[SIZEOFFREE];
1995		2036
1996	for (int i = start; i < stop; i++)	2037	for (int i = start; i < stop; i++)
1997	{	2038	{
1998	flag = ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]);	2039	mapxy pos (m, x, y); pos.move (i);
1999	if (!flag)	2040
		2041	if (!pos.normalise ())
		2042	continue;
		2043
		2044	mapspace &ms = *pos;
		2045
		2046	if (ms.flags () & P_IS_ALIVE)
		2047	continue;
		2048
		2049	/* However, often
		2050	* ob doesn't have any move type (when used to place exits)
		2051	* so the AND operation in OB_TYPE_MOVE_BLOCK doesn't work.
		2052	*/
		2053	if (ob && ob->move_type == 0 && ms.move_block != MOVE_ALL)
		2054	{
2000	altern [index++] = i;	2055	altern [index++] = i;
		2056	continue;
		2057	}
2001		2058
2002	/* Basically, if we find a wall on a space, we cut down the search size.	2059	/* Basically, if we find a wall on a space, we cut down the search size.
2003	* In this way, we won't return spaces that are on another side of a wall.	2060	* In this way, we won't return spaces that are on another side of a wall.
2004	* This mostly work, but it cuts down the search size in all directions -	2061	* This mostly work, but it cuts down the search size in all directions -
2005	* if the space being examined only has a wall to the north and empty	2062	* if the space being examined only has a wall to the north and empty
2006	* spaces in all the other directions, this will reduce the search space	2063	* spaces in all the other directions, this will reduce the search space
2007	* to only the spaces immediately surrounding the target area, and	2064	* to only the spaces immediately surrounding the target area, and
2008	* won't look 2 spaces south of the target space.	2065	* won't look 2 spaces south of the target space.
2009	*/	2066	*/
2010	else if ((flag & P_NO_PASS) && maxfree[i] < stop)	2067	if (ms.move_block == MOVE_ALL && maxfree[i] < stop)
		2068	{
2011	stop = maxfree[i];	2069	stop = maxfree[i];
		2070	continue;
		2071	}
		2072
		2073	/* Note it is intentional that we check ob - the movement type of the
		2074	* head of the object should correspond for the entire object.
		2075	*/
		2076	if (OB_TYPE_MOVE_BLOCK (ob, ms.move_block))
		2077	continue;
		2078
		2079	if (ob->blocked (pos.m, pos.x, pos.y))
		2080	continue;
		2081
		2082	altern [index++] = i;
2012	}	2083	}
2013		2084
2014	if (!index)	2085	if (!index)
2015	return -1;	2086	return -1;
2016		2087
2017	return altern[RANDOM () % index];	2088	return altern [rndm (index)];
2018	}	2089	}
2019		2090
2020	/*	2091	/*
2021	* find_first_free_spot(archetype, maptile, x, y) works like	2092	* find_first_free_spot(archetype, maptile, x, y) works like
2022	* find_free_spot(), but it will search max number of squares.	2093	* find_free_spot(), but it will search max number of squares.
…		…
2025	*/	2096	*/
2026	int	2097	int
2027	find_first_free_spot (const object *ob, maptile *m, int x, int y)	2098	find_first_free_spot (const object *ob, maptile *m, int x, int y)
2028	{	2099	{
2029	for (int i = 0; i < SIZEOFFREE; i++)	2100	for (int i = 0; i < SIZEOFFREE; i++)
2030	if (!ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]))	2101	if (!ob->blocked (m, x + freearr_x[i], y + freearr_y[i]))
2031	return i;	2102	return i;
2032		2103
2033	return -1;	2104	return -1;
2034	}	2105	}
2035		2106
…		…
2043	{	2114	{
2044	arr += begin;	2115	arr += begin;
2045	end -= begin;	2116	end -= begin;
2046		2117
2047	while (--end)	2118	while (--end)
2048	swap (arr [end], arr [RANDOM () % (end + 1)]);	2119	swap (arr [end], arr [rndm (end + 1)]);
2049	}	2120	}
2050		2121
2051	/* new function to make monster searching more efficient, and effective!	2122	/* new function to make monster searching more efficient, and effective!
2052	* This basically returns a randomized array (in the passed pointer) of	2123	* This basically returns a randomized array (in the passed pointer) of
2053	* the spaces to find monsters. In this way, it won't always look for	2124	* the spaces to find monsters. In this way, it won't always look for
…		…
2081	* there is capable of.	2152	* there is capable of.
2082	*/	2153	*/
2083	int	2154	int
2084	find_dir (maptile *m, int x, int y, object *exclude)	2155	find_dir (maptile *m, int x, int y, object *exclude)
2085	{	2156	{
2086	int i, max = SIZEOFFREE, mflags;	2157	int max = SIZEOFFREE, mflags;
2087
2088	sint16 nx, ny;
2089	object *tmp;
2090	maptile *mp;
2091
2092	MoveType blocked, move_type;	2158	MoveType move_type;
2093		2159
2094	if (exclude && exclude->head)	2160	if (exclude && exclude->head_ () != exclude)
2095	{	2161	{
2096	exclude = exclude->head;	2162	exclude = exclude->head;
2097	move_type = exclude->move_type;	2163	move_type = exclude->move_type;
2098	}	2164	}
2099	else	2165	else
2100	{	2166	{
2101	/* If we don't have anything, presume it can use all movement types. */	2167	/* If we don't have anything, presume it can use all movement types. */
2102	move_type = MOVE_ALL;	2168	move_type = MOVE_ALL;
2103	}	2169	}
2104		2170
2105	for (i = 1; i < max; i++)	2171	for (int i = 1; i < max; i++)
2106	{	2172	{
2107	mp = m;	2173	mapxy pos (m, x, y);
2108	nx = x + freearr_x[i];	2174	pos.move (i);
2109	ny = y + freearr_y[i];
2110		2175
2111	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);	2176	if (!pos.normalise ())
2112
2113	if (mflags & P_OUT_OF_MAP)
2114	max = maxfree[i];	2177	max = maxfree[i];
2115	else	2178	else
2116	{	2179	{
2117	mapspace &ms = mp->at (nx, ny);	2180	mapspace &ms = *pos;
2118		2181
2119	blocked = ms.move_block;
2120
2121	if ((move_type & blocked) == move_type)	2182	if ((move_type & ms.move_block) == move_type)
2122	max = maxfree[i];	2183	max = maxfree [i];
2123	else if (mflags & P_IS_ALIVE)	2184	else if (ms.flags () & P_IS_ALIVE)
2124	{	2185	{
2125	for (tmp = ms.bot; tmp; tmp = tmp->above)	2186	for (object *tmp = ms.bot; tmp; tmp = tmp->above)
2126	if ((tmp->flag [FLAG_MONSTER] || tmp->type == PLAYER)	2187	if ((tmp->flag [FLAG_MONSTER] || tmp->is_player ())
2127	&& (tmp != exclude || (tmp->head && tmp->head != exclude)))	2188	&& (tmp != exclude || (tmp->head_ () != tmp && tmp->head_ () != exclude)))
2128	break;
2129
2130	if (tmp)
2131	return freedir[i];	2189	return freedir [i];
2132	}	2190	}
2133	}	2191	}
2134	}	2192	}
2135		2193
2136	return 0;	2194	return 0;
…		…
2145	{	2203	{
2146	return (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);	2204	return (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);
2147	}	2205	}
2148		2206
2149	/*	2207	/*
2150	* find_dir_2(delta-x,delta-y) will return a direction in which	2208	* find_dir_2(delta-x,delta-y) will return a direction value
2151	* an object which has subtracted the x and y coordinates of another	2209	* for running into direct [dx, dy].
2152	* object, needs to travel toward it.	2210	* (the opposite of crossfire's find_dir_2!)
2153	*/	2211	*/
2154	int	2212	int
2155	find_dir_2 (int x, int y)	2213	find_dir_2 (int x, int y)
2156	{	2214	{
		2215	#if 1 // new algorithm
		2216	// this works by putting x, y into 16 sectors, which
		2217	// are not equal sized, but are a better approximation
		2218	// then the old algorithm, and then using a mapping
		2219	// table to map it into a direction value.
		2220	// basically, it maps these comparisons to each bit
		2221	// bit #3: x < 0
		2222	// bit #2: y < 0
		2223	// bit #1: x > y
		2224	// bit #0: x > 2y
		2225
		2226	static const uint8 dir[16] = {
		2227	4, 5, 4, 3,
		2228	2, 1, 2, 3,
		2229	6, 5, 6, 7,
		2230	8, 1, 8, 7,
		2231	};
		2232	int sector = 0;
		2233
		2234	// this is a bit ugly, but more likely to result in branchless code
		2235	sector |= x < 0 ? 8 : 0;
		2236	x = x < 0 ? -x : x; // abs
		2237
		2238	sector |= y < 0 ? 4 : 0;
		2239	y = y < 0 ? -y : y; // abs
		2240
		2241	if (x > y)
		2242	{
		2243	sector |= 2;
		2244
		2245	if (x > y * 2)
		2246	sector |= 1;
		2247	}
		2248	else
		2249	{
		2250	if (y > x * 2)
		2251	sector |= 1;
		2252	else if (!y)
		2253	return 0; // x == 0 here
		2254	}
		2255
		2256	return dir [sector];
		2257	#else // old algorithm
2157	int q;	2258	int q;
2158		2259
2159	if (y)	2260	if (y)
2160	q = x * 100 / y;	2261	q = 128 * x / y;
2161	else if (x)	2262	else if (x)
2162	q = -300 * x;	2263	q = -512 * x; // to make it > 309
2163	else	2264	else
2164	return 0;	2265	return 0;
2165		2266
2166	if (y > 0)	2267	if (y > 0)
2167	{	2268	{
2168	if (q < -242)	2269	if (q < -309) return 7;
		2270	if (q < -52) return 6;
		2271	if (q < 52) return 5;
		2272	if (q < 309) return 4;
		2273
2169	return 3;	2274	return 3;
2170	if (q < -41)	2275	}
2171	return 2;	2276	else
2172	if (q < 41)	2277	{
2173	return 1;	2278	if (q < -309) return 3;
2174	if (q < 242)	2279	if (q < -52) return 2;
2175	return 8;	2280	if (q < 52) return 1;
		2281	if (q < 309) return 8;
		2282
2176	return 7;	2283	return 7;
2177	}	2284	}
2178		2285	#endif
2179	if (q < -242)
2180	return 7;
2181	if (q < -41)
2182	return 6;
2183	if (q < 41)
2184	return 5;
2185	if (q < 242)
2186	return 4;
2187
2188	return 3;
2189	}
2190
2191	/*
2192	* absdir(int): Returns a number between 1 and 8, which represent
2193	* the "absolute" direction of a number (it actually takes care of
2194	* "overflow" in previous calculations of a direction).
2195	*/
2196
2197	int
2198	absdir (int d)
2199	{
2200	while (d < 1)
2201	d += 8;
2202
2203	while (d > 8)
2204	d -= 8;
2205
2206	return d;
2207	}	2286	}
2208		2287
2209	/*	2288	/*
2210	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is	2289	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is
2211	* between two directions (which are expected to be absolute (see absdir())	2290	* between two directions (which are expected to be absolute (see absdir())
2212	*/	2291	*/
2213
2214	int	2292	int
2215	dirdiff (int dir1, int dir2)	2293	dirdiff (int dir1, int dir2)
2216	{	2294	{
2217	int d;
2218
2219	d = abs (dir1 - dir2);	2295	int d = abs (dir1 - dir2);
2220	if (d > 4)
2221	d = 8 - d;
2222		2296
2223	return d;	2297	return d > 4 ? 8 - d : d;
2224	}	2298	}
2225		2299
2226	/* peterm:	2300	/* peterm:
2227	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.	2301	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.
2228	* Basically, this is a table of directions, and what directions	2302	* Basically, this is a table of directions, and what directions
…		…
2230	* This basically means that if direction is 15, then it could either go	2304	* This basically means that if direction is 15, then it could either go
2231	* direction 4, 14, or 16 to get back to where we are.	2305	* direction 4, 14, or 16 to get back to where we are.
2232	* Moved from spell_util.c to object.c with the other related direction	2306	* Moved from spell_util.c to object.c with the other related direction
2233	* functions.	2307	* functions.
2234	*/	2308	*/
2235	int reduction_dir[SIZEOFFREE][3] = {	2309	static const int reduction_dir[SIZEOFFREE][3] = {
2236	{0, 0, 0}, /* 0 */	2310	{0, 0, 0}, /* 0 */
2237	{0, 0, 0}, /* 1 */	2311	{0, 0, 0}, /* 1 */
2238	{0, 0, 0}, /* 2 */	2312	{0, 0, 0}, /* 2 */
2239	{0, 0, 0}, /* 3 */	2313	{0, 0, 0}, /* 3 */
2240	{0, 0, 0}, /* 4 */	2314	{0, 0, 0}, /* 4 */
…		…
2331	* Cf 0.91.3 - don't let WIZ's pick up anything - will likely cause	2405	* Cf 0.91.3 - don't let WIZ's pick up anything - will likely cause
2332	* core dumps if they do.	2406	* core dumps if they do.
2333	*	2407	*
2334	* Add a check so we can't pick up invisible objects (0.93.8)	2408	* Add a check so we can't pick up invisible objects (0.93.8)
2335	*/	2409	*/
2336
2337	int	2410	int
2338	can_pick (const object *who, const object *item)	2411	can_pick (const object *who, const object *item)
2339	{	2412	{
2340	return /*QUERY_FLAG(who,FLAG_WIZ)|| */	2413	return /*who->flag [FLAG_WIZ]|| */
2341	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&	2414	(item->weight > 0 && !item->flag [FLAG_NO_PICK] &&
2342	!QUERY_FLAG (item, FLAG_ALIVE) && !item->invisible && (who->type == PLAYER || item->weight < who->weight / 3));	2415	!item->flag [FLAG_ALIVE] && !item->invisible && (who->is_player () || item->weight < who->weight / 3));
2343	}	2416	}
2344		2417
2345	/*	2418	/*
2346	* create clone from object to another	2419	* create clone from object to another
2347	*/	2420	*/
2348	object *	2421	object *
2349	object_create_clone (object *asrc)	2422	object::deep_clone ()
2350	{	2423	{
2351	object *dst = 0, *tmp, *src, *part, *prev, *item;	2424	assert (("deep_clone called on non-head object", is_head ()));
2352		2425
2353	if (!asrc)	2426	object *dst = clone ();
2354	return 0;
2355		2427
2356	src = asrc;	2428	object *prev = dst;
2357	if (src->head)
2358	src = src->head;
2359
2360	prev = 0;
2361	for (part = src; part; part = part->more)	2429	for (object *part = this->more; part; part = part->more)
2362	{	2430	{
2363	tmp = part->clone ();	2431	object *tmp = part->clone ();
2364	tmp->x -= src->x;
2365	tmp->y -= src->y;
2366
2367	if (!part->head)
2368	{
2369	dst = tmp;
2370	tmp->head = 0;
2371	}
2372	else
2373	tmp->head = dst;	2432	tmp->head = dst;
2374
2375	tmp->more = 0;
2376
2377	if (prev)
2378	prev->more = tmp;	2433	prev->more = tmp;
2379
2380	prev = tmp;	2434	prev = tmp;
2381	}	2435	}
2382		2436
2383	for (item = src->inv; item; item = item->below)	2437	for (object *item = inv; item; item = item->below)
2384	insert_ob_in_ob (object_create_clone (item), dst);	2438	insert_ob_in_ob (item->deep_clone (), dst);
2385		2439
2386	return dst;	2440	return dst;
2387	}
2388
2389	/* GROS - Creates an object using a string representing its content. */
2390	/* Basically, we save the content of the string to a temp file, then call */
2391	/* load_object on it. I admit it is a highly inefficient way to make things, */
2392	/* but it was simple to make and allows reusing the load_object function. */
2393	/* Remember not to use load_object_str in a time-critical situation. */
2394	/* Also remember that multiparts objects are not supported for now. */
2395	object *
2396	load_object_str (const char *obstr)
2397	{
2398	object *op;
2399	char filename[MAX_BUF];
2400
2401	sprintf (filename, "%s/cfloadobstr2044", settings.tmpdir);
2402
2403	FILE *tempfile = fopen (filename, "w");
2404
2405	if (tempfile == NULL)
2406	{
2407	LOG (llevError, "Error - Unable to access load object temp file\n");
2408	return NULL;
2409	}
2410
2411	fprintf (tempfile, obstr);
2412	fclose (tempfile);
2413
2414	op = object::create ();
2415
2416	object_thawer thawer (filename);
2417
2418	if (thawer)
2419	load_object (thawer, op, 0);
2420
2421	LOG (llevDebug, " load str completed, object=%s\n", &op->name);
2422	CLEAR_FLAG (op, FLAG_REMOVED);
2423
2424	return op;
2425	}	2441	}
2426		2442
2427	/* This returns the first object in who's inventory that	2443	/* This returns the first object in who's inventory that
2428	* has the same type and subtype match.	2444	* has the same type and subtype match.
2429	* returns NULL if no match.	2445	* returns NULL if no match.
…		…
2436	return tmp;	2452	return tmp;
2437		2453
2438	return 0;	2454	return 0;
2439	}	2455	}
2440		2456
2441	/* If ob has a field named key, return the link from the list,	2457	/* Zero the key_values on op, decrementing the shared-string
2442	* otherwise return NULL.	2458	* refcounts and freeing the links.
2443	*	2459	*/
2444	* key must be a passed in shared string - otherwise, this won't	2460	void
2445	* do the desired thing.	2461	key_values::clear ()
2446	*/
2447	key_value *
2448	get_ob_key_link (const object *ob, const char *key)
2449	{	2462	{
2450	for (key_value *link = ob->key_values; link; link = link->next)	2463	for (key_value *kvp = first; kvp; )
		2464	{
		2465	key_value *next = kvp->next;
		2466	delete kvp;
		2467	kvp = next;
		2468	}
		2469
		2470	first = 0;
		2471	}
		2472
		2473	shstr_tmp
		2474	key_values::get (shstr_tmp key) const
		2475	{
		2476	for (key_value *kv = first; kv; kv = kv->next)
2451	if (link->key == key)	2477	if (kv->key == key)
2452	return link;
2453
2454	return 0;
2455	}
2456
2457	/*
2458	* Returns the value of op has an extra_field for key, or NULL.
2459	*
2460	* The argument doesn't need to be a shared string.
2461	*
2462	* The returned string is shared.
2463	*/
2464	const char *
2465	get_ob_key_value (const object *op, const char *const key)
2466	{
2467	key_value *link;
2468	shstr_cmp canonical_key (key);
2469
2470	if (!canonical_key)
2471	{
2472	/* 1. There being a field named key on any object
2473	* implies there'd be a shared string to find.
2474	* 2. Since there isn't, no object has this field.
2475	* 3. Therefore, *this* object doesn't have this field.
2476	*/
2477	return 0;
2478	}
2479
2480	/* This is copied from get_ob_key_link() above -
2481	* only 4 lines, and saves the function call overhead.
2482	*/
2483	for (link = op->key_values; link; link = link->next)
2484	if (link->key == canonical_key)
2485	return link->value;	2478	return kv->value;
2486		2479
2487	return 0;	2480	return shstr ();
2488	}	2481	}
2489		2482
2490		2483	void
2491	/*	2484	key_values::add (shstr_tmp key, shstr_tmp value)
2492	* Updates the canonical_key in op to value.
2493	*
2494	* canonical_key is a shared string (value doesn't have to be).
2495	*
2496	* Unless add_key is TRUE, it won't add fields, only change the value of existing
2497	* keys.
2498	*
2499	* Returns TRUE on success.
2500	*/
2501	int
2502	set_ob_key_value_s (object *op, const shstr & canonical_key, const char *value, int add_key)
2503	{	2485	{
2504	key_value *field = NULL, *last = NULL;	2486	key_value *kv = new key_value;
2505		2487
2506	for (field = op->key_values; field != NULL; field = field->next)	2488	kv->next = first;
2507	{	2489	kv->key = key;
2508	if (field->key != canonical_key)	2490	kv->value = value;
		2491
		2492	first = kv;
		2493	}
		2494
		2495	void
		2496	key_values::set (shstr_tmp key, shstr_tmp value)
		2497	{
		2498	for (key_value *kv = first; kv; kv = kv->next)
		2499	if (kv->key == key)
2509	{	2500	{
2510	last = field;	2501	kv->value = value;
2511	continue;	2502	return;
2512	}	2503	}
2513		2504
2514	if (value)	2505	add (key, value);
2515	field->value = value;	2506	}
2516	else	2507
		2508	void
		2509	key_values::del (shstr_tmp key)
		2510	{
		2511	for (key_value **kvp = &first; *kvp; kvp = &(*kvp)->next)
		2512	if ((*kvp)->key == key)
2517	{	2513	{
2518	/* Basically, if the archetype has this key set,	2514	key_value *kv = *kvp;
2519	* we need to store the null value so when we save	2515	*kvp = (*kvp)->next;
2520	* it, we save the empty value so that when we load,	2516	delete kv;
2521	* we get this value back again.	2517	return;
2522	*/
2523	if (get_ob_key_link (&op->arch->clone, canonical_key))
2524	field->value = 0;
2525	else
2526	{
2527	if (last)
2528	last->next = field->next;
2529	else
2530	op->key_values = field->next;
2531
2532	delete field;
2533	}
2534	}	2518	}
2535	return TRUE;	2519	}
		2520
		2521	void
		2522	key_values::reverse ()
		2523	{
		2524	key_value *prev = 0;
		2525	key_value *head = first;
		2526
		2527	while (head)
2536	}	2528	{
2537	/* IF we get here, key doesn't exist */	2529	key_value *node = head;
		2530	head = head->next;
		2531	node->next = prev;
		2532	prev = node;
		2533	}
2538		2534
2539	/* No field, we'll have to add it. */	2535	first = prev;
2540
2541	if (!add_key)
2542	return FALSE;
2543
2544	/* There isn't any good reason to store a null
2545	* value in the key/value list. If the archetype has
2546	* this key, then we should also have it, so shouldn't
2547	* be here. If user wants to store empty strings,
2548	* should pass in ""
2549	*/
2550	if (value == NULL)
2551	return TRUE;
2552
2553	field = new key_value;
2554
2555	field->key = canonical_key;
2556	field->value = value;
2557	/* Usual prepend-addition. */
2558	field->next = op->key_values;
2559	op->key_values = field;
2560
2561	return TRUE;
2562	}	2536	}
2563		2537
2564	/*	2538	key_values &
2565	* Updates the key in op to value.	2539	key_values::operator =(const key_values &kv)
2566	*
2567	* If add_key is FALSE, this will only update existing keys,
2568	* and not add new ones.
2569	* In general, should be little reason FALSE is ever passed in for add_key
2570	*
2571	* Returns TRUE on success.
2572	*/
2573	int
2574	set_ob_key_value (object *op, const char *key, const char *value, int add_key)
2575	{	2540	{
2576	shstr key_ (key);	2541	clear ();
2577		2542
2578	return set_ob_key_value_s (op, key_, value, add_key);	2543	for (key_value *kvp = kv.first; kvp; kvp = kvp->next)
		2544	add (kvp->key, kvp->value);
		2545
		2546	reverse ();
2579	}	2547	}
2580		2548
2581	object::depth_iterator::depth_iterator (object *container)	2549	object::depth_iterator::depth_iterator (object *container)
2582	: iterator_base (container)	2550	: iterator_base (container)
2583	{	2551	{
…		…
2597	}	2565	}
2598	else	2566	else
2599	item = item->env;	2567	item = item->env;
2600	}	2568	}
2601		2569
		2570	const char *
		2571	object::flag_desc (char *desc, int len) const
		2572	{
		2573	char *p = desc;
		2574	bool first = true;
		2575
		2576	*p = 0;
		2577
		2578	for (int i = 0; i < NUM_FLAGS; i++)
		2579	{
		2580	if (len <= 10) // magic constant!
		2581	{
		2582	snprintf (p, len, ",...");
		2583	break;
		2584	}
		2585
		2586	if (flag [i])
		2587	{
		2588	int cnt = snprintf (p, len, "%s%d", first ? "" : ",", i);
		2589	len -= cnt;
		2590	p += cnt;
		2591	first = false;
		2592	}
		2593	}
		2594
		2595	return desc;
		2596	}
		2597
2602	// return a suitable string describing an objetc in enough detail to find it	2598	// return a suitable string describing an object in enough detail to find it
2603	const char *	2599	const char *
2604	object::debug_desc (char *info) const	2600	object::debug_desc (char *info) const
2605	{	2601	{
		2602	char flagdesc[512];
2606	char info2[256 * 3];	2603	char info2[256 * 4];
2607	char *p = info;	2604	char *p = info;
2608		2605
2609	p += snprintf (p, 256, "%d=\"%s%s%s\"",	2606	p += snprintf (p, 512, "{cnt:%d,uuid:%s,name:\"%s\"%s%s%s,flags:[%s],type:%d}",
2610	count,	2607	count,
		2608	uuid.c_str (),
2611	&name,	2609	&name,
2612	title ? " " : "",	2610	title ? ",title:\"" : "",
2613	title ? (const char *)title : "");	2611	title ? (const char *)title : "",
		2612	title ? "\"" : "",
		2613	flag_desc (flagdesc, 512), type);
2614		2614
2615	if (env)	2615	if (!flag[FLAG_REMOVED] && env)
2616	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));	2616	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));
2617		2617
2618	if (map)	2618	if (map)
2619	p += snprintf (p, 256, "(on %s@%d+%d)", map->path, x, y);	2619	p += snprintf (p, 256, "(on %s@%d+%d)", &map->path, x, y);
2620		2620
2621	return info;	2621	return info;
2622	}	2622	}
2623		2623
2624	const char *	2624	const char *
2625	object::debug_desc () const	2625	object::debug_desc () const
2626	{	2626	{
2627	static char info[256 * 3];	2627	static char info[3][256 * 4];
		2628	static int info_idx;
		2629
2628	return debug_desc (info);	2630	return debug_desc (info [++info_idx % 3]);
2629	}	2631	}
2630		2632
		2633	struct region *
		2634	object::region () const
		2635	{
		2636	return map ? map->region (x, y)
		2637	: region::default_region ();
		2638	}
		2639
		2640	void
		2641	object::open_container (object *new_container)
		2642	{
		2643	if (container == new_container)
		2644	return;
		2645
		2646	object *old_container = container;
		2647
		2648	if (old_container)
		2649	{
		2650	if (INVOKE_OBJECT (CLOSE, old_container, ARG_OBJECT (this)))
		2651	return;
		2652
		2653	#if 0
		2654	// remove the "Close old_container" object.
		2655	if (object *closer = old_container->inv)
		2656	if (closer->type == CLOSE_CON)
		2657	closer->destroy ();
		2658	#endif
		2659
		2660	// make sure the container is available
		2661	esrv_send_item (this, old_container);
		2662
		2663	old_container->flag [FLAG_APPLIED] = false;
		2664	container = 0;
		2665
		2666	// client needs item update to make it work, client bug requires this to be separate
		2667	esrv_update_item (UPD_FLAGS, this, old_container);
		2668
		2669	new_draw_info_format (NDI_UNIQUE, 0, this, "You close %s.", old_container->query_name ());
		2670	play_sound (sound_find ("chest_close"));
		2671	}
		2672
		2673	if (new_container)
		2674	{
		2675	if (INVOKE_OBJECT (OPEN, new_container, ARG_OBJECT (this)))
		2676	return;
		2677
		2678	// TODO: this does not seem to serve any purpose anymore?
		2679	#if 0
		2680	// insert the "Close Container" object.
		2681	if (archetype *closer = new_container->other_arch)
		2682	{
		2683	object *closer = new_container->other_arch->instance ();
		2684	closer->flag [FLAG_NO_MAP_SAVE] = 1;
		2685	new_container->insert (closer);
		2686	}
		2687	#endif
		2688
		2689	new_draw_info_format (NDI_UNIQUE, 0, this, "You open %s.", new_container->query_name ());
		2690
		2691	// make sure the container is available, client bug requires this to be separate
		2692	esrv_send_item (this, new_container);
		2693
		2694	new_container->flag [FLAG_APPLIED] = true;
		2695	container = new_container;
		2696
		2697	// client needs flag change
		2698	esrv_update_item (UPD_FLAGS, this, new_container);
		2699	esrv_send_inventory (this, new_container);
		2700	play_sound (sound_find ("chest_open"));
		2701	}
		2702	// else if (!old_container->env && contr && contr->ns)
		2703	// contr->ns->floorbox_reset ();
		2704	}
		2705
		2706	object *
		2707	object::force_find (shstr_tmp name)
		2708	{
		2709	/* cycle through his inventory to look for the MARK we want to
		2710	* place
		2711	*/
		2712	for (object *tmp = inv; tmp; tmp = tmp->below)
		2713	if (tmp->type == FORCE && tmp->slaying == name)
		2714	return splay (tmp);
		2715
		2716	return 0;
		2717	}
		2718
		2719	//-GPL
		2720
		2721	void
		2722	object::force_set_timer (int duration)
		2723	{
		2724	this->duration = 1;
		2725	this->speed_left = -1.f;
		2726
		2727	this->set_speed (duration ? 1.f / duration : 0.f);
		2728	}
		2729
		2730	object *
		2731	object::force_add (shstr_tmp name, int duration)
		2732	{
		2733	if (object *force = force_find (name))
		2734	force->destroy ();
		2735
		2736	object *force = get_archetype (FORCE_NAME);
		2737
		2738	force->slaying = name;
		2739	force->force_set_timer (duration);
		2740	force->flag [FLAG_APPLIED] = true;
		2741
		2742	return insert (force);
		2743	}
		2744
		2745	void
		2746	object::play_sound (faceidx sound) const
		2747	{
		2748	if (!sound)
		2749	return;
		2750
		2751	if (is_on_map ())
		2752	map->play_sound (sound, x, y);
		2753	else if (object *pl = in_player ())
		2754	pl->contr->play_sound (sound);
		2755	}
		2756
		2757	void
		2758	object::say_msg (const char *msg) const
		2759	{
		2760	if (is_on_map ())
		2761	map->say_msg (msg, x, y);
		2762	else if (object *pl = in_player ())
		2763	pl->contr->play_sound (sound);
		2764	}
		2765
		2766	void
		2767	object::make_noise ()
		2768	{
		2769	// we do not model noise in the map, so instead put
		2770	// a temporary light into the noise source
		2771	// could use the map instead, but that's less reliable for our
		2772	// goal, which is to make invisibility a bit harder to exploit
		2773
		2774	// currently only works sensibly for players
		2775	if (!is_player ())
		2776	return;
		2777
		2778	// find old force, or create new one
		2779	object *force = force_find (shstr_noise_force);
		2780
		2781	if (force)
		2782	force->speed_left = -1.f; // patch old speed up
		2783	else
		2784	{
		2785	force = archetype::get (shstr_noise_force);
		2786
		2787	force->slaying = shstr_noise_force;
		2788	force->stats.food = 1;
		2789	force->speed_left = -1.f;
		2790
		2791	force->set_speed (1.f / 4.f);
		2792	force->flag [FLAG_IS_USED_UP] = true;
		2793	force->flag [FLAG_APPLIED] = true;
		2794
		2795	insert (force);
		2796	}
		2797	}
		2798
		2799	void object::change_move_type (MoveType mt)
		2800	{
		2801	if (move_type == mt)
		2802	return;
		2803
		2804	if (is_on_map ())
		2805	{
		2806	// we are on the map, so handle move_on/off effects
		2807	remove ();
		2808	move_type = mt;
		2809	map->insert (this, x, y, this);
		2810	}
		2811	else
		2812	move_type = mt;
		2813	}
		2814
		2815	/* object should be a player.
		2816	* we return the object the player has marked with the 'mark' command
		2817	* below. If no match is found (or object has changed), we return
		2818	* NULL. We leave it up to the calling function to print messages if
		2819	* nothing is found.
		2820	*/
		2821	object *
		2822	object::mark () const
		2823	{
		2824	if (contr && contr->mark && contr->mark->env == this)
		2825	return contr->mark;
		2826	else
		2827	return 0;
		2828	}
		2829
		2830	// put marked object first in the inventory
		2831	// this is used by identify-like spells so players can influence
		2832	// the order a bit.
		2833	void
		2834	object::splay_marked ()
		2835	{
		2836	if (object *marked = mark ())
		2837	splay (marked);
		2838	}
		2839

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