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Comparing deliantra/server/common/object.C (file contents):
Revision 1.44 by root, Thu Sep 14 17:29:27 2006 UTC vs.
Revision 1.303 by root, Tue Nov 10 04:38:45 2009 UTC

1
2	/*	1	/*
3	CrossFire, A Multiplayer game for X-windows	2	* This file is part of Deliantra, the Roguelike Realtime MMORPG.
4		3	*
		4	* Copyright (©) 2005,2006,2007,2008,2009 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
5	Copyright (C) 2001 Mark Wedel & Crossfire Development Team	5	* Copyright (©) 2001,2007 Mark Wedel & Crossfire Development Team
6	Copyright (C) 1992 Frank Tore Johansen	6	* Copyright (©) 1992,2007 Frank Tore Johansen
7		7	*
8	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
9	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
10	the Free Software Foundation; either version 2 of the License, or	10	* Free Software Foundation, either version 3 of the License, or (at your
11	(at your option) any later version.	11	* option) any later version.
12		12	*
13	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,
14	but WITHOUT ANY WARRANTY; without even the implied warranty of	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
15	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16	GNU General Public License for more details.	16	* GNU General Public License for more details.
17		17	*
18	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
19	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
20	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.	20	* <http://www.gnu.org/licenses/>.
21		21	*
22	The authors can be reached via e-mail at crossfire-devel@real-time.com	22	* The authors can be reached via e-mail to <support@deliantra.net>
23	*/	23	*/
24		24
25	/* Eneq(@csd.uu.se): Added weight-modifiers in environment of objects.
26	sub/add_weight will transcend the environment updating the carrying
27	variable. */
28	#include <global.h>	25	#include <global.h>
29	#include <stdio.h>	26	#include <stdio.h>
30	#include <sys/types.h>	27	#include <sys/types.h>
31	#include <sys/uio.h>	28	#include <sys/uio.h>
32	#include <object.h>	29	#include <object.h>
33	#include <funcpoint.h>	30	#include <sproto.h>
34	#include <loader.h>	31	#include <loader.h>
35		32
36	int nrofallocobjects = 0;	33	#include <bitset>
37	static UUID uuid;	34
		35	UUID UUID::cur;
		36	static uint64_t seq_next_save;
38	const uint64 UUID_SKIP = 1<<19;	37	static const uint64 UUID_GAP = 1<<19;
		38	uint32_t mapspace::smellcount = 10000;
39		39
40	object *objects; /* Pointer to the list of used objects */	40	objectvec objects;
41	object *active_objects; /* List of active objects that need to be processed */	41	activevec actives;
42		42
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,	43	//+GPL
		44
		45	short freearr_x[SIZEOFFREE] = {
		46	0,
		47	0, 1, 1, 1, 0, -1, -1, -1,
		48	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	49	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	};	50	};
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,	51	short freearr_y[SIZEOFFREE] = {
		52	0,
		53	-1, -1, 0, 1, 1, 1, 0, -1,
		54	-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	55	-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	};	56	};
52	int freedir[SIZEOFFREE] = {	57	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,	58	0,
		59	1, 2, 3, 4, 5, 6, 7, 8,
		60	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	61	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	};	62	};
56		63
		64	static int maxfree[SIZEOFFREE] = {
		65	0,
		66	9, 10, 13, 14, 17, 18, 21, 22,
		67	25, 26, 27, 30, 31, 32, 33, 36, 37, 39, 39, 42, 43, 44, 45, 48,
		68	49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49
		69	};
		70
57	static void	71	static void
58	write_uuid (void)	72	write_uuid (uval64 skip, bool sync)
59	{	73	{
60	char filename1[MAX_BUF], filename2[MAX_BUF];	74	CALL_BEGIN (2);
61		75	CALL_ARG_SV (newSVval64 (skip));
62	sprintf (filename1, "%s/uuid", settings.localdir);	76	CALL_ARG_SV (boolSV (sync));
63	sprintf (filename2, "%s/uuid~", settings.localdir);	77	CALL_CALL ("cf::write_uuid", G_DISCARD);
64		78	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	}	79	}
77		80
78	static void	81	static void
79	read_uuid (void)	82	read_uuid (void)
80	{	83	{
81	char filename[MAX_BUF];	84	char filename[MAX_BUF];
82		85
83	sprintf (filename, "%s/uuid", settings.localdir);	86	sprintf (filename, "%s/uuid", settings.localdir);
		87
		88	seq_next_save = 0;
84		89
85	FILE *fp;	90	FILE *fp;
86		91
87	if (!(fp = fopen (filename, "r")))	92	if (!(fp = fopen (filename, "r")))
88	{	93	{
89	if (errno == ENOENT)	94	if (errno == ENOENT)
90	{	95	{
91	LOG (llevInfo, "RESET uid to 1\n");	96	LOG (llevInfo, "RESET uid to 1\n");
92	uuid.seq = 0;	97	UUID::cur.seq = 0;
93	write_uuid ();	98	write_uuid (UUID_GAP, true);
94	return;	99	return;
95	}	100	}
96		101
97	LOG (llevError, "FATAL: cannot open %s for reading!\n", filename);	102	LOG (llevError, "FATAL: cannot open %s for reading!\n", filename);
98	_exit (1);	103	_exit (1);
99	}	104	}
100		105
101	int version;	106	char buf [UUID::MAX_LEN];
102	unsigned long long uid;	107	buf[0] = 0;
103	if (2 != fscanf (fp, "<%d,%llx>\n", &version, &uid) || version != 1)	108	fgets (buf, sizeof (buf), fp);
		109
		110	if (!UUID::cur.parse (buf))
104	{	111	{
105	LOG (llevError, "FATAL: error reading uid from %s!\n", filename);	112	LOG (llevError, "FATAL: error reading uid from %s (%s)!\n", filename, buf);
106	_exit (1);	113	_exit (1);
107	}	114	}
108		115
109	uuid.seq = uid;
110	write_uuid ();
111	LOG (llevDebug, "read UID: %lld\n", uid);	116	LOG (llevDebug, "read UUID: %s\n", UUID::cur.c_str ());
		117
		118	write_uuid (UUID_GAP, true);
112	fclose (fp);	119	fclose (fp);
113	}	120	}
114		121
115	UUID	122	UUID
116	gen_uuid ()	123	UUID::gen ()
117	{	124	{
118	UUID uid;	125	UUID uid;
119		126
120	uid.seq = ++uuid.seq;	127	uid.seq = ++cur.seq;
121		128
122	if (!(uuid.seq & (UUID_SKIP - 1)))	129	if (expect_false (cur.seq >= seq_next_save))
123	write_uuid ();	130	{
		131	seq_next_save = UUID::cur.seq + (UUID_GAP >> 1);
		132	write_uuid (UUID_GAP, false);
		133	}
		134
124		135
125	return uid;	136	return uid;
126	}	137	}
127		138
128	void	139	void
129	init_uuid ()	140	UUID::init ()
130	{	141	{
131	read_uuid ();	142	read_uuid ();
132	}	143	}
133		144
		145	bool
		146	UUID::parse (const char *s)
		147	{
		148	if (*s++ != '<' || *s++ != '1' || *s++ != '.')
		149	return false;
		150
		151	seq = 0;
		152
		153	while (*s != '>')
		154	{
		155	if (*s < '0')
		156	return false;
		157
		158	// this gives nice branchless code with gcc
		159	assert ('0' < 'a' && '0' == 48 && 'a' == 97);
		160	int digit = (*s + (*s & 0x40 ? 9 : 0)) & 15;
		161
		162	seq = (seq << 4) | digit;
		163
		164	++s;
		165	}
		166
		167	return true;
		168	}
		169
		170	char *
		171	UUID::append (char *buf) const
		172	{
		173	*buf++ = '<';
		174	*buf++ = '1';
		175	*buf++ = '.';
		176
		177	uint64_t seq = this->seq;
		178	const int bits = 64;
		179	char nz = 0;
		180	static const char tohex [] = "0123456789abcdef";
		181
		182	// assert (len >= 3 + bits / 4 + 1 + 1);
		183	for (int i = bits / 4; --i; )
		184	{
		185	uint8_t digit = seq >> (bits - 4);
		186
		187	*buf = tohex [digit];
		188	nz |= digit;
		189	buf += nz ? 1 : 0;
		190	seq <<= 4;
		191	}
		192
		193	// last digit is special - always emit
		194	uint8_t digit = seq >> (bits - 4);
		195	*buf++ = tohex [digit];
		196
		197	*buf++ = '>';
		198
		199	return buf;
		200	}
		201
		202	char *
		203	UUID::c_str () const
		204	{
		205	static char buf [MAX_LEN];
		206	*append (buf) = 0;
		207	return buf;
		208	}
		209
134	/* Returns TRUE if every key_values in wants has a partner with the same value in has. */	210	/* Returns TRUE if every key_values in wants has a partner with the same value in has. */
135	static int	211	static bool
136	compare_ob_value_lists_one (const object *wants, const object *has)	212	compare_ob_value_lists_one (const object *wants, const object *has)
137	{	213	{
138	key_value *wants_field;
139
140	/* n-squared behaviour (see get_ob_key_link()), but I'm hoping both	214	/* 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	215	* objects with lists are rare, and lists stay short. If not, use a
142	* different structure or at least keep the lists sorted...	216	* different structure or at least keep the lists sorted...
143	*/	217	*/
144		218
145	/* For each field in wants, */	219	/* For each field in wants, */
146	for (wants_field = wants->key_values; wants_field != NULL; wants_field = wants_field->next)	220	for (key_value *kv = wants->key_values; kv; kv = kv->next)
147	{	221	if (has->kv_get (kv->key) != kv->value)
148	key_value *has_field;	222	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		223
169	/* If we get here, every field in wants has a matching field in has. */	224	/* If we get here, every field in wants has a matching field in has. */
170	return TRUE;	225	return true;
171	}	226	}
172		227
173	/* Returns TRUE if ob1 has the same key_values as ob2. */	228	/* Returns TRUE if ob1 has the same key_values as ob2. */
174	static int	229	static bool
175	compare_ob_value_lists (const object *ob1, const object *ob2)	230	compare_ob_value_lists (const object *ob1, const object *ob2)
176	{	231	{
177	/* However, there may be fields in has which aren't partnered in wants,	232	/* However, there may be fields in has which aren't partnered in wants,
178	* so we need to run the comparison *twice*. :(	233	* so we need to run the comparison *twice*. :(
179	*/	234	*/
180	return compare_ob_value_lists_one (ob1, ob2) && compare_ob_value_lists_one (ob2, ob1);	235	return compare_ob_value_lists_one (ob1, ob2)
		236	&& compare_ob_value_lists_one (ob2, ob1);
181	}	237	}
182		238
183	/* Function examines the 2 objects given to it, and returns true if	239	/* Function examines the 2 objects given to it, and returns true if
184	* they can be merged together.	240	* they can be merged together.
185	*	241	*
186	* Note that this function appears a lot longer than the macro it	242	* Note that this function appears a lot longer than the macro it
187	* replaces - this is mostly for clarity - a decent compiler should hopefully	243	* replaces - this is mostly for clarity - a decent compiler should hopefully
188	* reduce this to the same efficiency.	244	* reduce this to the same efficiency.
189	*	245	*
190	* Check nrof variable *before* calling CAN_MERGE()	246	* Check nrof variable *before* calling can_merge()
191	*	247	*
192	* Improvements made with merge: Better checking on potion, and also	248	* Improvements made with merge: Better checking on potion, and also
193	* check weight	249	* check weight
194	*/	250	*/
195
196	bool object::can_merge (object *ob1, object *ob2)	251	bool object::can_merge_slow (object *ob1, object *ob2)
197	{	252	{
198	/* A couple quicksanity checks */	253	/* A couple quicksanity checks */
199	if ((ob1 == ob2) || (ob1->type != ob2->type))	254	if (ob1 == ob2
		255	|| ob1->type != ob2->type
		256	|| fabs (ob1->speed - ob2->speed) >= MIN_ACTIVE_SPEED
		257	|| ob1->value != ob2->value
		258	|| ob1->name != ob2->name)
200	return 0;	259	return 0;
201		260
202	if (ob1->speed != ob2->speed)	261	/* Do not merge objects if nrof would overflow, assume nrof
		262	* is always 0 .. 2**31-1 */
		263	if (ob1->nrof > 0x7fffffff - ob2->nrof)
203	return 0;	264	return 0;
204		265
205	/* Do not merge objects if nrof would overflow. We use 1UL<<31 since that
206	* value could not be stored in a sint32 (which unfortunately sometimes is
207	* used to store nrof).
208	*/
209	if (ob1->nrof + ob2->nrof >= 1UL << 31)
210	return 0;
211
212	/* If the objects have been identified, set the BEEN_APPLIED flag.	266	/* If the objects have been identified, set the BEEN_APPLIED flag.
213	* This is to the comparison of the flags below will be OK. We	267	* This is to the comparison of the flags below will be OK. We
214	* just can't ignore the been applied or identified flags, as they	268	* just can't ignore the been applied or identified flags, as they
215	* are not equal - just if it has been identified, the been_applied	269	* are not equal - just if it has been identified, the been_applied
216	* flags lose any meaning.	270	* flags lose any meaning.
217	*/	271	*/
218	if (QUERY_FLAG (ob1, FLAG_IDENTIFIED))	272	if (QUERY_FLAG (ob1, FLAG_IDENTIFIED))
219	SET_FLAG (ob1, FLAG_BEEN_APPLIED);	273	SET_FLAG (ob1, FLAG_BEEN_APPLIED);
220		274
221	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))	275	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))
222	SET_FLAG (ob2, FLAG_BEEN_APPLIED);	276	SET_FLAG (ob2, FLAG_BEEN_APPLIED);
223		277
224		278	if (ob1->arch->archname != ob2->arch->archname
225	/* the 0x400000 on flags2 is FLAG_INV_LOCK. I don't think something
226	* being locked in inventory should prevent merging.
227	* 0x4 in flags3 is CLIENT_SENT
228	*/
229	if ((ob1->arch != ob2->arch) ||
230	(ob1->flags[0] != ob2->flags[0]) ||
231	(ob1->flags[1] != ob2->flags[1]) ||
232	((ob1->flags[2] & ~0x400000) != (ob2->flags[2] & ~0x400000)) ||
233	((ob1->flags[3] & ~0x4) != (ob2->flags[3] & ~0x4)) ||
234	(ob1->name != ob2->name) ||	279	|| ob1->name != ob2->name
235	(ob1->title != ob2->title) ||	280	|| ob1->title != ob2->title
236	(ob1->msg != ob2->msg) ||	281	|| ob1->msg != ob2->msg
237	(ob1->weight != ob2->weight) ||	282	|| ob1->weight != ob2->weight
238	(memcmp (&ob1->resist, &ob2->resist, sizeof (ob1->resist)) != 0) ||
239	(memcmp (&ob1->stats, &ob2->stats, sizeof (ob1->stats)) != 0) ||
240	(ob1->attacktype != ob2->attacktype) ||	283	|| ob1->attacktype != ob2->attacktype
241	(ob1->magic != ob2->magic) ||	284	|| ob1->magic != ob2->magic
242	(ob1->slaying != ob2->slaying) ||	285	|| ob1->slaying != ob2->slaying
243	(ob1->skill != ob2->skill) ||	286	|| ob1->skill != ob2->skill
244	(ob1->value != ob2->value) ||	287	|| ob1->value != ob2->value
245	(ob1->animation_id != ob2->animation_id) ||	288	|| ob1->animation_id != ob2->animation_id
		289	|| (ob1->face != ob2->face && !ob1->animation_id) // face and animation are dependent on each other
246	(ob1->client_type != ob2->client_type) ||	290	|| ob1->client_type != ob2->client_type
247	(ob1->materialname != ob2->materialname) ||	291	|| ob1->material != ob2->material
248	(ob1->lore != ob2->lore) ||	292	|| ob1->lore != ob2->lore
249	(ob1->subtype != ob2->subtype) ||	293	|| ob1->subtype != ob2->subtype
250	(ob1->move_type != ob2->move_type) ||	294	|| ob1->move_type != ob2->move_type
251	(ob1->move_block != ob2->move_block) ||	295	|| ob1->move_block != ob2->move_block
252	(ob1->move_allow != ob2->move_allow) ||	296	|| ob1->move_allow != ob2->move_allow
253	(ob1->move_on != ob2->move_on) ||	297	|| ob1->move_on != ob2->move_on
254	(ob1->move_off != ob2->move_off) || (ob1->move_slow != ob2->move_slow) || (ob1->move_slow_penalty != ob2->move_slow_penalty))	298	|| ob1->move_off != ob2->move_off
		299	|| ob1->move_slow != ob2->move_slow
		300	|| fabs (ob1->move_slow_penalty - ob2->move_slow_penalty) >= (1.f / 1024.f)
		301	|| memcmp (&ob1->resist, &ob2->resist, sizeof (ob1->resist))
		302	|| memcmp (&ob1->stats , &ob2->stats , sizeof (ob1->stats)))
255	return 0;	303	return 0;
256		304
		305	if ((ob1->flag ^ ob2->flag)
		306	.reset (FLAG_INV_LOCKED)
		307	.reset (FLAG_REMOVED)
		308	.any ())
		309	return 0;
		310
257	/* This is really a spellbook check - really, we should	311	/* This is really a spellbook check - we should in general
258	* check all objects in the inventory.	312	* not merge objects with real inventories, as splitting them
		313	* is hard.
259	*/	314	*/
260	if (ob1->inv || ob2->inv)	315	if (ob1->inv || ob2->inv)
261	{	316	{
262	/* if one object has inventory but the other doesn't, not equiv */
263	if ((ob1->inv && !ob2->inv) || (ob2->inv && !ob1->inv))
264	return 0;
265
266	/* Now check to see if the two inventory objects could merge */
267	if (!CAN_MERGE (ob1->inv, ob2->inv))	317	if (!(ob1->inv && ob2->inv))
268	return 0;	318	return 0; /* inventories differ in length */
		319
		320	if (ob1->inv->below || ob2->inv->below)
		321	return 0; /* more than one object in inv */
		322
		323	if (!object::can_merge (ob1->inv, ob2->inv))
		324	return 0; /* inventory objects differ */
269		325
270	/* inventory ok - still need to check rest of this object to see	326	/* inventory ok - still need to check rest of this object to see
271	* if it is valid.	327	* if it is valid.
272	*/	328	*/
273	}	329	}
…		…
281		337
282	/* Note sure why the following is the case - either the object has to	338	/* Note sure why the following is the case - either the object has to
283	* be animated or have a very low speed. Is this an attempted monster	339	* be animated or have a very low speed. Is this an attempted monster
284	* check?	340	* check?
285	*/	341	*/
286	if (!QUERY_FLAG (ob1, FLAG_ANIMATE) && FABS ((ob1)->speed) > MIN_ACTIVE_SPEED)	342	if (!QUERY_FLAG (ob1, FLAG_ANIMATE) && ob1->has_active_speed ())
287	return 0;	343	return 0;
288		344
289	switch (ob1->type)	345	switch (ob1->type)
290	{	346	{
291	case SCROLL:	347	case SCROLL:
292	if (ob1->level != ob2->level)	348	if (ob1->level != ob2->level)
293	return 0;	349	return 0;
294	break;	350	break;
295	}	351	}
296		352
297	if (ob1->key_values != NULL || ob2->key_values != NULL)	353	if (ob1->key_values || ob2->key_values)
298	{	354	{
299	/* At least one of these has key_values. */	355	/* At least one of these has key_values. */
300	if ((ob1->key_values == NULL) != (ob2->key_values == NULL))	356	if ((!ob1->key_values) != (!ob2->key_values))
301	/* One has fields, but the other one doesn't. */	357	return 0; /* One has fields, but the other one doesn't. */
		358
		359	if (!compare_ob_value_lists (ob1, ob2))
302	return 0;	360	return 0;
303	else if (!compare_ob_value_lists (ob1, ob2))
304	return 0;
305	}	361	}
306		362
307	//TODO: generate an event or call into perl for additional checks
308	if (ob1->self || ob2->self)	363	if (ob1->self || ob2->self)
309	{	364	{
310	ob1->optimise ();	365	ob1->optimise ();
311	ob2->optimise ();	366	ob2->optimise ();
312		367
313	if (ob1->self || ob2->self)	368	if (ob1->self || ob2->self)
		369	{
		370	int k1 = ob1->self ? HvTOTALKEYS (ob1->self) : 0;
		371	int k2 = ob2->self ? HvTOTALKEYS (ob2->self) : 0;
		372
		373	if (k1 != k2)
314	return 0;	374	return 0;
		375
		376	if (k1 == 0)
		377	return 1;
		378
		379	if (!cfperl_can_merge (ob1, ob2))
		380	return 0;
		381	}
315	}	382	}
316		383
317	/* Everything passes, must be OK. */	384	/* Everything passes, must be OK. */
318	return 1;	385	return 1;
319	}	386	}
320		387
		388	// find player who can see this object
		389	object *
		390	object::visible_to () const
		391	{
		392	if (client_visible () && !flag [FLAG_REMOVED])
		393	{
		394	// see if we are in a container of sorts
		395	if (env)
		396	{
		397	// the player inventory itself is always visible
		398	if (env->is_player ())
		399	return env;
		400
		401	// else a player could have our env open
		402	object *envest = env->outer_env_or_self ();
		403
		404	// the player itself is always on a map, so we will find him here
		405	// even if our inv is in a player.
		406	if (envest->is_on_map ())
		407	if (object *pl = envest->ms ().player ())
		408	if (pl->container_ () == env)
		409	return pl;
		410	}
		411	else
		412	{
		413	// maybe there is a player standing on the same mapspace
		414	// this will catch the case where "this" is a player
		415	if (object *pl = ms ().player ())
		416	if ((pl->contr->ns && !pl->container_ () && !pl->contr->ns->update_look)
		417	|| pl->container_ () == this)
		418	return pl;
		419	}
		420	}
		421
		422	return 0;
		423	}
		424
		425	// adjust weight per container type ("of holding")
		426	static sint32
		427	weight_adjust_for (object *op, sint32 weight)
		428	{
		429	return op->type == CONTAINER
		430	? lerp (weight, 0, 100, 0, 100 - op->stats.Str)
		431	: weight;
		432	}
		433
321	/*	434	/*
		435	* adjust_weight(object, weight) adds the specified weight to an object,
		436	* and also updates how much the environment(s) is/are carrying.
		437	*/
		438	static void
		439	adjust_weight (object *op, sint32 weight)
		440	{
		441	while (op)
		442	{
		443	// adjust by actual difference to account for rounding errors
		444	// i.e. (w2 - w1) / f != w2 / f - w1 / f and the latter is correct
		445	weight = weight_adjust_for (op, op->carrying)
		446	- weight_adjust_for (op, op->carrying - weight);
		447
		448	if (!weight)
		449	return;
		450
		451	op->carrying += weight;
		452
		453	if (object *pl = op->visible_to ())
		454	if (pl != op) // player is handled lazily
		455	esrv_update_item (UPD_WEIGHT, pl, op);
		456
		457	op = op->env;
		458	}
		459	}
		460
		461	/*
322	* sum_weight() is a recursive function which calculates the weight	462	* this is a recursive function which calculates the weight
323	* an object is carrying. It goes through in figures out how much	463	* an object is carrying. It goes through op and figures out how much
324	* containers are carrying, and sums it up.	464	* containers are carrying, and sums it up.
325	*/	465	*/
326	long	466	void
327	sum_weight (object *op)	467	object::update_weight ()
328	{	468	{
329	long sum;	469	sint32 sum = 0;
330	object *inv;
331		470
332	for (sum = 0, inv = op->inv; inv != NULL; inv = inv->below)	471	for (object *op = inv; op; op = op->below)
333	{	472	{
334	if (inv->inv)	473	if (op->inv)
335	sum_weight (inv);	474	op->update_weight ();
336	sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1);	475
		476	sum += op->total_weight ();
		477	}
		478
		479	sum = weight_adjust_for (this, sum);
		480
		481	if (sum != carrying)
337	}	482	{
338
339	if (op->type == CONTAINER && op->stats.Str)
340	sum = (sum * (100 - op->stats.Str)) / 100;
341
342	if (op->carrying != sum)
343	op->carrying = sum;	483	carrying = sum;
344		484
345	return sum;	485	if (object *pl = visible_to ())
346	}	486	if (pl != this) // player is handled lazily
347		487	esrv_update_item (UPD_WEIGHT, pl, this);
348	/**
349	* Return the outermost environment object for a given object.
350	*/
351
352	object *
353	object_get_env_recursive (object *op)
354	{
355	while (op->env != NULL)
356	op = op->env;
357	return op;
358	}
359
360	/*
361	* Eneq(@csd.uu.se): Since we can have items buried in a character we need
362	* a better check. We basically keeping traversing up until we can't
363	* or find a player.
364	*/
365
366	object *
367	is_player_inv (object *op)
368	{
369	for (; op != NULL && op->type != PLAYER; op = op->env)
370	if (op->env == op)
371	op->env = NULL;
372	return op;
373	}
374
375	/*
376	* Used by: Crossedit: dump. Server DM commands: dumpbelow, dump.
377	* Some error messages.
378	* The result of the dump is stored in the static global errmsg array.
379	*/
380
381	void
382	dump_object2 (object *op)
383	{
384	errmsg[0] = 0;
385	return;
386	//TODO//D#d#
387	#if 0
388	char *cp;
389
390	/* object *tmp;*/
391
392	if (op->arch != NULL)
393	{	488	}
394	strcat (errmsg, "arch ");
395	strcat (errmsg, op->arch->name ? op->arch->name : "(null)");
396	strcat (errmsg, "\n");
397	if ((cp = get_ob_diff (op, &empty_archetype->clone)) != NULL)
398	strcat (errmsg, cp);
399	# if 0
400	/* Don't dump player diffs - they are too long, mostly meaningless, and
401	* will overflow the buffer.
402	* Changed so that we don't dump inventory either. This may
403	* also overflow the buffer.
404	*/
405	if (op->type != PLAYER && (cp = get_ob_diff (op, &empty_archetype->clone)) != NULL)
406	strcat (errmsg, cp);
407	for (tmp = op->inv; tmp; tmp = tmp->below)
408	dump_object2 (tmp);
409	# endif
410	strcat (errmsg, "end\n");
411	}
412	else
413	{
414	strcat (errmsg, "Object ");
415	if (op->name == NULL)
416	strcat (errmsg, "(null)");
417	else
418	strcat (errmsg, op->name);
419	strcat (errmsg, "\n");
420	# if 0
421	if ((cp = get_ob_diff (op, &empty_archetype->clone)) != NULL)
422	strcat (errmsg, cp);
423	for (tmp = op->inv; tmp; tmp = tmp->below)
424	dump_object2 (tmp);
425	# endif
426	strcat (errmsg, "end\n");
427	}
428	#endif
429	}	489	}
430		490
431	/*	491	/*
432	* Dumps an object. Returns output in the static global errmsg array.	492	* Used by: Server DM commands: dumpbelow, dump. Some error messages.
433	*/	493	*/
434		494	char *
435	void
436	dump_object (object *op)	495	dump_object (object *op)
437	{	496	{
438	if (op == NULL)	497	if (!op)
439	{	498	return strdup ("[NULLOBJ]");
440	strcpy (errmsg, "[NULL pointer]");
441	return;
442	}
443	errmsg[0] = '\0';
444	dump_object2 (op);
445	}
446		499
447	void	500	object_freezer freezer;
448	dump_all_objects (void)	501	op->write (freezer);
449	{	502	return freezer.as_string ();
450	object *op;
451
452	for (op = objects; op != NULL; op = op->next)
453	{
454	dump_object (op);
455	fprintf (logfile, "Object %d\n:%s\n", op->count, errmsg);
456	}
457	}	503	}
458		504
459	/*	505	char *
460	* get_nearest_part(multi-object, object 2) returns the part of the	506	object::as_string ()
461	* multi-object 1 which is closest to the second object.
462	* If it's not a multi-object, it is returned.
463	*/
464
465	object *
466	get_nearest_part (object *op, const object *pl)
467	{	507	{
468	object *tmp, *closest;	508	return dump_object (this);
469	int last_dist, i;
470
471	if (op->more == NULL)
472	return op;
473	for (last_dist = distance (op, pl), closest = op, tmp = op->more; tmp != NULL; tmp = tmp->more)
474	if ((i = distance (tmp, pl)) < last_dist)
475	closest = tmp, last_dist = i;
476	return closest;
477	}	509	}
478		510
479	/*	511	/*
480	* Returns the object which has the count-variable equal to the argument.	512	* Returns the object which has the count-variable equal to the argument.
		513	* VERRRY slow.
481	*/	514	*/
482
483	object *	515	object *
484	find_object (tag_t i)	516	find_object (tag_t i)
485	{	517	{
486	object *op;	518	for_all_objects (op)
487
488	for (op = objects; op != NULL; op = op->next)
489	if (op->count == i)	519	if (op->count == i)
490	break;
491	return op;	520	return op;
		521
		522	return 0;
492	}	523	}
493		524
494	/*	525	/*
495	* Returns the first object which has a name equal to the argument.	526	* Returns the first object which has a name equal to the argument.
496	* Used only by the patch command, but not all that useful.	527	* Used only by the patch command, but not all that useful.
497	* Enables features like "patch <name-of-other-player> food 999"	528	* Enables features like "patch <name-of-other-player> food 999"
498	*/	529	*/
499
500	object *	530	object *
501	find_object_name (const char *str)	531	find_object_name (const char *str)
502	{	532	{
503	shstr_cmp str_ (str);	533	shstr_cmp str_ (str);
504	object *op;
505		534
506	for (op = objects; op != NULL; op = op->next)	535	if (str_)
		536	for_all_objects (op)
507	if (op->name == str_)	537	if (op->name == str_)
508	break;	538	return op;
509		539
510	return op;	540	return 0;
511	}
512
513	void
514	free_all_object_data ()
515	{
516	LOG (llevDebug, "%d allocated objects\n", nrofallocobjects);
517	}	541	}
518		542
519	/*	543	/*
520	* Sets the owner and sets the skill and exp pointers to owner's current	544	* Sets the owner and sets the skill and exp pointers to owner's current
521	* skill and experience objects.	545	* skill and experience objects.
		546	* ACTUALLY NO! investigate! TODO
522	*/	547	*/
523	void	548	void
524	object::set_owner (object *owner)	549	object::set_owner (object *owner)
525	{	550	{
		551	// allow objects which own objects
526	if (!owner)	552	if (owner)
527	return;
528
529	/* next line added to allow objects which own objects */
530	/* Add a check for ownercounts in here, as I got into an endless loop
531	* with the fireball owning a poison cloud which then owned the
532	* fireball. I believe that was caused by one of the objects getting
533	* freed and then another object replacing it. Since the ownercounts
534	* didn't match, this check is valid and I believe that cause is valid.
535	*/
536	while (owner->owner)	553	while (owner->owner)
537	owner = owner->owner;	554	owner = owner->owner;
		555
		556	if (flag [FLAG_FREED])
		557	{
		558	LOG (llevError | logBacktrace, "tried to set owner of %s to %s\n", debug_desc (), owner->debug_desc ());
		559	return;
		560	}
538		561
539	this->owner = owner;	562	this->owner = owner;
		563	}
		564
		565	int
		566	object::slottype () const
		567	{
		568	if (type == SKILL)
		569	{
		570	if (IS_COMBAT_SKILL (subtype)) return slot_combat;
		571	if (IS_RANGED_SKILL (subtype)) return slot_ranged;
		572	}
		573	else
		574	{
		575	if (slot [body_combat].info) return slot_combat;
		576	if (slot [body_range ].info) return slot_ranged;
		577	}
		578
		579	return slot_none;
		580	}
		581
		582	bool
		583	object::change_weapon (object *ob)
		584	{
		585	if (current_weapon == ob)
		586	return true;
		587
		588	if (chosen_skill)
		589	chosen_skill->flag [FLAG_APPLIED] = false;
		590
		591	current_weapon = ob;
		592	chosen_skill = !ob || ob->type == SKILL ? ob : find_skill_by_name (this, ob->skill);
		593
		594	if (chosen_skill)
		595	chosen_skill->flag [FLAG_APPLIED] = true;
		596
		597	update_stats ();
		598
		599	if (ob)
		600	{
		601	// now check wether any body locations became invalid, in which case
		602	// we cannot apply the weapon at the moment.
		603	for (int i = 0; i < NUM_BODY_LOCATIONS; ++i)
		604	if (slot[i].used < 0)
		605	{
		606	current_weapon = chosen_skill = 0;
		607	update_stats ();
		608
		609	new_draw_info_format (NDI_UNIQUE, 0, this,
		610	"You try to balance all your items at once, "
		611	"but the %s is just too much for your body. "
		612	"[You need to unapply some items first - use the 'body' command to see "
		613	"how many items you cna wera on a specific body part.]", &ob->name);
		614	return false;
		615	}
		616
		617	//new_draw_info_format (NDI_UNIQUE, 0, this, "You switch to your %s.", &ob->name);
		618	}
		619	else
		620	;//new_draw_info_format (NDI_UNIQUE, 0, this, "You unwield your weapons.");
		621
		622	if (ob && !ob->flag [FLAG_APPLIED] && ob->type != SPELL)
		623	{
		624	LOG (llevError | logBacktrace, "%s changed to unapplied weapon %s",
		625	&name, ob->debug_desc ());
		626	return false;
		627	}
		628
		629	return true;
540	}	630	}
541		631
542	/* Zero the key_values on op, decrementing the shared-string	632	/* Zero the key_values on op, decrementing the shared-string
543	* refcounts and freeing the links.	633	* refcounts and freeing the links.
544	*/	634	*/
545	static void	635	static void
546	free_key_values (object *op)	636	free_key_values (object *op)
547	{	637	{
548	for (key_value *i = op->key_values; i != 0;)	638	for (key_value *i = op->key_values; i; )
549	{	639	{
550	key_value *next = i->next;	640	key_value *next = i->next;
551	delete i;	641	delete i;
552		642
553	i = next;	643	i = next;
554	}	644	}
555		645
556	op->key_values = 0;	646	op->key_values = 0;
557	}	647	}
558		648
559	void object::clear ()
560	{
561	attachable_base::clear ();
562
563	free_key_values (this);
564
565	owner = 0;
566	name = 0;
567	name_pl = 0;
568	title = 0;
569	race = 0;
570	slaying = 0;
571	skill = 0;
572	msg = 0;
573	lore = 0;
574	custom_name = 0;
575	materialname = 0;
576	contr = 0;
577	below = 0;
578	above = 0;
579	inv = 0;
580	container = 0;
581	env = 0;
582	more = 0;
583	head = 0;
584	map = 0;
585	active_next = 0;
586	active_prev = 0;
587
588	memset (static_cast<object_pod *>(this), 0, sizeof (object_pod));
589
590	SET_FLAG (this, FLAG_REMOVED);
591
592	/* What is not cleared is next, prev, and count */
593
594	expmul = 1.0;
595	face = blank_face;
596
597	if (settings.casting_time)
598	casting_time = -1;
599	}
600
601	void object::clone (object *destination)
602	{
603	*(object_copy *)destination = *this;
604	*(object_pod *)destination = *this;
605
606	if (self || cb)
607	INVOKE_OBJECT (CLONE, this, ARG_OBJECT (destination));
608	}
609
610	/*	649	/*
611	* copy object first frees everything allocated by the second object,	650	* copy_to first frees everything allocated by the dst object,
612	* and then copies the contends of the first object into the second	651	* and then copies the contents of itself into the second
613	* object, allocating what needs to be allocated. Basically, any	652	* object, allocating what needs to be allocated. Basically, any
614	* data that is malloc'd needs to be re-malloc/copied. Otherwise,	653	* data that is malloc'd needs to be re-malloc/copied. Otherwise,
615	* if the first object is freed, the pointers in the new object	654	* if the first object is freed, the pointers in the new object
616	* will point at garbage.	655	* will point at garbage.
617	*/	656	*/
618	void	657	void
619	copy_object (object *op2, object *op)	658	object::copy_to (object *dst)
620	{	659	{
621	bool is_freed = QUERY_FLAG (op, FLAG_FREED);	660	dst->remove ();
622	bool is_removed = QUERY_FLAG (op, FLAG_REMOVED);	661	*(object_copy *)dst = *this;
623		662	dst->flag [FLAG_REMOVED] = true;
624	op2->clone (op);
625
626	if (is_freed)
627	SET_FLAG (op, FLAG_FREED);
628	if (is_removed)
629	SET_FLAG (op, FLAG_REMOVED);
630
631	if (op2->speed < 0)
632	op->speed_left = op2->speed_left - RANDOM () % 200 / 100.0;
633		663
634	/* Copy over key_values, if any. */	664	/* Copy over key_values, if any. */
635	if (op2->key_values)	665	if (key_values)
636	{	666	{
637	key_value *tail = 0;	667	key_value *tail = 0;
638	key_value *i;
639
640	op->key_values = 0;	668	dst->key_values = 0;
641		669
642	for (i = op2->key_values; i; i = i->next)	670	for (key_value *i = key_values; i; i = i->next)
643	{	671	{
644	key_value *new_link = new key_value;	672	key_value *new_link = new key_value;
645		673
646	new_link->next = 0;	674	new_link->next = 0;
647	new_link->key = i->key;	675	new_link->key = i->key;
648	new_link->value = i->value;	676	new_link->value = i->value;
649		677
650	/* Try and be clever here, too. */	678	/* Try and be clever here, too. */
651	if (!op->key_values)	679	if (!dst->key_values)
652	{	680	{
653	op->key_values = new_link;	681	dst->key_values = new_link;
654	tail = new_link;	682	tail = new_link;
655	}	683	}
656	else	684	else
657	{	685	{
658	tail->next = new_link;	686	tail->next = new_link;
659	tail = new_link;	687	tail = new_link;
660	}	688	}
661	}	689	}
662	}	690	}
663		691
664	update_ob_speed (op);	692	if (speed < 0)
		693	dst->speed_left -= rndm ();
		694
		695	dst->activate ();
		696	}
		697
		698	void
		699	object::instantiate ()
		700	{
		701	if (!uuid.seq) // HACK
		702	uuid = UUID::gen ();
		703
		704	speed_left = -0.1f;
		705	/* copy the body_info to the body_used - this is only really
		706	* need for monsters, but doesn't hurt to do it for everything.
		707	* by doing so, when a monster is created, it has good starting
		708	* values for the body_used info, so when items are created
		709	* for it, they can be properly equipped.
		710	*/
		711	for (int i = NUM_BODY_LOCATIONS; i--; )
		712	slot[i].used = slot[i].info;
		713
		714	attachable::instantiate ();
		715	}
		716
		717	object *
		718	object::clone ()
		719	{
		720	object *neu = create ();
		721	copy_to (neu);
		722	neu->map = map; // not copied by copy_to
		723	return neu;
665	}	724	}
666		725
667	/*	726	/*
668	* If an object with the IS_TURNABLE() flag needs to be turned due	727	* If an object with the IS_TURNABLE() flag needs to be turned due
669	* to the closest player being on the other side, this function can	728	* to the closest player being on the other side, this function can
670	* be called to update the face variable, _and_ how it looks on the map.	729	* be called to update the face variable, _and_ how it looks on the map.
671	*/	730	*/
672
673	void	731	void
674	update_turn_face (object *op)	732	update_turn_face (object *op)
675	{	733	{
676	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || op->arch == NULL)	734	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || !op->arch)
677	return;	735	return;
		736
678	SET_ANIMATION (op, op->direction);	737	SET_ANIMATION (op, op->direction);
679	update_object (op, UP_OBJ_FACE);	738	update_object (op, UP_OBJ_FACE);
680	}	739	}
681		740
682	/*	741	/*
683	* Updates the speed of an object. If the speed changes from 0 to another	742	* Updates the speed of an object. If the speed changes from 0 to another
684	* value, or vice versa, then add/remove the object from the active list.	743	* value, or vice versa, then add/remove the object from the active list.
685	* This function needs to be called whenever the speed of an object changes.	744	* This function needs to be called whenever the speed of an object changes.
686	*/	745	*/
687	void	746	void
688	update_ob_speed (object *op)	747	object::set_speed (float speed)
689	{	748	{
690	extern int arch_init;	749	this->speed = speed;
691		750
692	/* No reason putting the archetypes objects on the speed list,	751	if (has_active_speed ())
693	* since they never really need to be updated.	752	activate ();
694	*/
695
696	if (QUERY_FLAG (op, FLAG_FREED) && op->speed)
697	{
698	LOG (llevError, "Object %s is freed but has speed.\n", &op->name);
699	#ifdef MANY_CORES
700	abort ();
701	#else
702	op->speed = 0;
703	#endif
704	}
705
706	if (arch_init)
707	return;
708
709	if (FABS (op->speed) > MIN_ACTIVE_SPEED)
710	{
711	/* If already on active list, don't do anything */
712	if (op->active_next || op->active_prev || op == active_objects)
713	return;
714
715	/* process_events() expects us to insert the object at the beginning
716	* of the list. */
717	op->active_next = active_objects;
718
719	if (op->active_next != NULL)
720	op->active_next->active_prev = op;
721
722	active_objects = op;
723	}
724	else	753	else
725	{	754	deactivate ();
726	/* If not on the active list, nothing needs to be done */
727	if (!op->active_next && !op->active_prev && op != active_objects)
728	return;
729
730	if (op->active_prev == NULL)
731	{
732	active_objects = op->active_next;
733
734	if (op->active_next != NULL)
735	op->active_next->active_prev = NULL;
736	}
737	else
738	{
739	op->active_prev->active_next = op->active_next;
740
741	if (op->active_next)
742	op->active_next->active_prev = op->active_prev;
743	}
744
745	op->active_next = NULL;
746	op->active_prev = NULL;
747	}
748	}	755	}
749		756
750	/* This function removes object 'op' from the list of active
751	* objects.
752	* This should only be used for style maps or other such
753	* reference maps where you don't want an object that isn't
754	* in play chewing up cpu time getting processed.
755	* The reverse of this is to call update_ob_speed, which
756	* will do the right thing based on the speed of the object.
757	*/
758	void
759	remove_from_active_list (object *op)
760	{
761	/* If not on the active list, nothing needs to be done */
762	if (!op->active_next && !op->active_prev && op != active_objects)
763	return;
764
765	if (op->active_prev == NULL)
766	{
767	active_objects = op->active_next;
768	if (op->active_next != NULL)
769	op->active_next->active_prev = NULL;
770	}
771	else
772	{
773	op->active_prev->active_next = op->active_next;
774	if (op->active_next)
775	op->active_next->active_prev = op->active_prev;
776	}
777	op->active_next = NULL;
778	op->active_prev = NULL;
779	}
780
781	/*	757	/*
782	* update_object() updates the array which represents the map.	758	* update_object() updates the the map.
783	* It takes into account invisible objects (and represent squares covered	759	* It takes into account invisible objects (and represent squares covered
784	* by invisible objects by whatever is below them (unless it's another	760	* by invisible objects by whatever is below them (unless it's another
785	* invisible object, etc...)	761	* invisible object, etc...)
786	* If the object being updated is beneath a player, the look-window	762	* If the object being updated is beneath a player, the look-window
787	* of that player is updated (this might be a suboptimal way of	763	* of that player is updated (this might be a suboptimal way of
788	* updating that window, though, since update_object() is called _often_)	764	* updating that window, though, since update_object() is called _often_)
789	*	765	*
790	* action is a hint of what the caller believes need to be done.	766	* action is a hint of what the caller believes need to be done.
791	* For example, if the only thing that has changed is the face (due to
792	* an animation), we don't need to call update_position until that actually
793	* comes into view of a player. OTOH, many other things, like addition/removal
794	* of walls or living creatures may need us to update the flags now.
795	* current action are:	767	* current action are:
796	* UP_OBJ_INSERT: op was inserted	768	* UP_OBJ_INSERT: op was inserted
797	* UP_OBJ_REMOVE: op was removed	769	* UP_OBJ_REMOVE: op was removed
798	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update	770	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update
799	* as that is easier than trying to look at what may have changed.	771	* as that is easier than trying to look at what may have changed.
800	* UP_OBJ_FACE: only the objects face has changed.	772	* UP_OBJ_FACE: only the objects face has changed.
801	*/	773	*/
802
803	void	774	void
804	update_object (object *op, int action)	775	update_object (object *op, int action)
805	{	776	{
806	int update_now = 0, flags;	777	if (!op)
807	MoveType move_on, move_off, move_block, move_slow;
808
809	if (op == NULL)
810	{	778	{
811	/* this should never happen */	779	/* this should never happen */
812	LOG (llevDebug, "update_object() called for NULL object.\n");	780	LOG (llevError | logBacktrace, "update_object() called for NULL object.\n");
813	return;	781	return;
814	}	782	}
815		783
816	if (op->env != NULL)	784	if (!op->is_on_map ())
817	{	785	{
818	/* Animation is currently handled by client, so nothing	786	/* Animation is currently handled by client, so nothing
819	* to do in this case.	787	* to do in this case.
820	*/	788	*/
821	return;	789	return;
822	}	790	}
823		791
824	/* If the map is saving, don't do anything as everything is
825	* going to get freed anyways.
826	*/
827	if (!op->map || op->map->in_memory == MAP_SAVING)
828	return;
829
830	/* make sure the object is within map boundaries */	792	/* make sure the object is within map boundaries */
831	if (op->x < 0 || op->x >= MAP_WIDTH (op->map) || op->y < 0 || op->y >= MAP_HEIGHT (op->map))	793	if (op->x < 0 || op->x >= op->map->width || op->y < 0 || op->y >= op->map->height)
832	{	794	{
833	LOG (llevError, "update_object() called for object out of map!\n");	795	LOG (llevError, "update_object() called for object out of map!\n");
834	#ifdef MANY_CORES	796	#ifdef MANY_CORES
835	abort ();	797	abort ();
836	#endif	798	#endif
837	return;	799	return;
838	}	800	}
839		801
840	flags = GET_MAP_FLAGS (op->map, op->x, op->y);	802	mapspace &m = op->ms ();
841	SET_MAP_FLAGS (op->map, op->x, op->y, flags | P_NEED_UPDATE);
842	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);
843	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);
844	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);
845	move_off = GET_MAP_MOVE_OFF (op->map, op->x, op->y);
846		803
		804	if (!(m.flags_ & P_UPTODATE))
		805	/* nop */;
847	if (action == UP_OBJ_INSERT)	806	else if (action == UP_OBJ_INSERT)
848	{	807	{
		808	#if 0
		809	// this is likely overkill, TODO: revisit (schmorp)
849	if (QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(flags & P_BLOCKSVIEW))	810	if ((QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(m.flags_ & P_BLOCKSVIEW))
850	update_now = 1;
851
852	if (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(flags & P_NO_MAGIC))	811	|| (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(m.flags_ & P_NO_MAGIC))
853	update_now = 1;	812	|| (op->is_player () && !(m.flags_ & P_PLAYER))
854		813	|| (op->type == SAFE_GROUND && !(m.flags_ & P_SAFE))
		814	|| (QUERY_FLAG (op, FLAG_ALIVE) && !(m.flags_ & P_IS_ALIVE))
855	if (QUERY_FLAG (op, FLAG_DAMNED) && !(flags & P_NO_CLERIC))	815	|| (QUERY_FLAG (op, FLAG_DAMNED) && !(m.flags_ & P_NO_CLERIC))
856	update_now = 1;
857
858	if (QUERY_FLAG (op, FLAG_ALIVE) && !(flags & P_IS_ALIVE))
859	update_now = 1;
860
861	if (op->type == SAFE_GROUND && !(flags & P_SAFE))
862	update_now = 1;
863
864	if ((move_on | op->move_on) != move_on)	816	|| (m.move_on | op->move_on ) != m.move_on
865	update_now = 1;
866
867	if ((move_off | op->move_off) != move_off)	817	|| (m.move_off | op->move_off ) != m.move_off
868	update_now = 1;	818	|| (m.move_slow | op->move_slow) != m.move_slow
869
870	/* This isn't perfect, but I don't expect a lot of objects to	819	/* This isn't perfect, but I don't expect a lot of objects to
871	* to have move_allow right now.	820	* have move_allow right now.
872	*/	821	*/
873	if (((move_block | op->move_block) & ~op->move_allow) != move_block)	822	|| ((m.move_block | op->move_block) & ~op->move_allow) != m.move_block
874	update_now = 1;	823	m.invalidate ();
875		824	#else
876	if ((move_slow | op->move_slow) != move_slow)	825	// the above is not strong enough a test to skip updating. los maybe? TODO (schmorp)
877	update_now = 1;	826	m.invalidate ();
		827	#endif
878	}	828	}
879	/* if the object is being removed, we can't make intelligent	829	/* if the object is being removed, we can't make intelligent
880	* decisions, because remove_ob can't really pass the object	830	* decisions, because remove_ob can't really pass the object
881	* that is being removed.	831	* that is being removed.
882	*/	832	*/
883	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)	833	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)
884	update_now = 1;	834	m.invalidate ();
885	else if (action == UP_OBJ_FACE)	835	else if (action == UP_OBJ_FACE)
886	/* Nothing to do for that case */ ;	836	/* Nothing to do for that case */ ;
887	else	837	else
888	LOG (llevError, "update_object called with invalid action: %d\n", action);	838	LOG (llevError, "update_object called with invalid action: %d\n", action);
889		839
890	if (update_now)
891	{
892	SET_MAP_FLAGS (op->map, op->x, op->y, flags | P_NO_ERROR | P_NEED_UPDATE);
893	update_position (op->map, op->x, op->y);
894	}
895
896	if (op->more != NULL)	840	if (op->more)
897	update_object (op->more, action);	841	update_object (op->more, action);
898	}	842	}
899		843
900	static unordered_vector<object *> mortals;
901
902	void object::free_mortals ()
903	{
904	for (unordered_vector<object *>::iterator i = mortals.begin (); i != mortals.end ();)
905	if ((*i)->refcnt)
906	++i; // further delay freeing
907	else
908	{
909	delete *i;
910	mortals.erase (i);
911	}
912
913	static int lastmortals = 0;//D
914
915	if (mortals.size() != lastmortals)//D
916	{
917	lastmortals = mortals.size ();//D
918	LOG (llevDebug, "%d objects in mortal queue\n", lastmortals);//D
919	}
920	}
921
922	object::object ()	844	object::object ()
923	{	845	{
924	SET_FLAG (this, FLAG_REMOVED);	846	SET_FLAG (this, FLAG_REMOVED);
925		847
926	expmul = 1.0;	848	//expmul = 1.0; declared const for the time being
927	face = blank_face;	849	face = blank_face;
		850	material = &material_null;
928	}	851	}
929		852
930	object::~object ()	853	object::~object ()
931	{	854	{
		855	unlink ();
		856
932	free_key_values (this);	857	free_key_values (this);
933	}	858	}
934		859
		860	static int object_count;
		861
935	void object::link ()	862	void object::link ()
936	{	863	{
		864	assert (!index);//D
		865	uuid = UUID::gen ();
937	count = ++ob_count;	866	count = ++object_count;
938	uuid = gen_uuid ();
939		867
940	prev = 0;	868	refcnt_inc ();
941	next = objects;	869	objects.insert (this);
942
943	if (objects)
944	objects->prev = this;
945
946	objects = this;
947	}	870	}
948		871
949	void object::unlink ()	872	void object::unlink ()
950	{	873	{
951	//count = 0;//D	874	if (!index)
952	if (!prev && !next) return;//D	875	return;
953		876
954	if (this == objects)	877	objects.erase (this);
955	objects = next;	878	refcnt_dec ();
		879	}
956		880
957	/* Remove this object from the list of used objects */	881	void
958	if (prev) prev->next = next;	882	object::activate ()
959	if (next) next->prev = prev;	883	{
		884	/* If already on active list, don't do anything */
		885	if (active)
		886	return;
960		887
961	prev = 0;	888	if (has_active_speed ())
962	next = 0;	889	{
		890	if (flag [FLAG_FREED])
		891	LOG (llevError | logBacktrace, "BUG: tried to activate freed object %s\n", debug_desc ());//D
		892
		893	actives.insert (this);
		894	}
		895	}
		896
		897	void
		898	object::activate_recursive ()
		899	{
		900	activate ();
		901
		902	for (object *op = inv; op; op = op->below)
		903	op->activate_recursive ();
		904	}
		905
		906	/* This function removes object 'op' from the list of active
		907	* objects.
		908	* This should only be used for style maps or other such
		909	* reference maps where you don't want an object that isn't
		910	* in play chewing up cpu time getting processed.
		911	* The reverse of this is to call update_ob_speed, which
		912	* will do the right thing based on the speed of the object.
		913	*/
		914	void
		915	object::deactivate ()
		916	{
		917	/* If not on the active list, nothing needs to be done */
		918	if (!active)
		919	return;
		920
		921	actives.erase (this);
		922	}
		923
		924	void
		925	object::deactivate_recursive ()
		926	{
		927	for (object *op = inv; op; op = op->below)
		928	op->deactivate_recursive ();
		929
		930	deactivate ();
		931	}
		932
		933	void
		934	object::set_flag_inv (int flag, int value)
		935	{
		936	for (object *op = inv; op; op = op->below)
		937	{
		938	op->flag [flag] = value;
		939	op->set_flag_inv (flag, value);
		940	}
		941	}
		942
		943	/*
		944	* Remove and free all objects in the inventory of the given object.
		945	* object.c ?
		946	*/
		947	void
		948	object::destroy_inv (bool drop_to_ground)
		949	{
		950	// need to check first, because the checks below might segfault
		951	// as we might be on an invalid mapspace and crossfire code
		952	// is too buggy to ensure that the inventory is empty.
		953	// corollary: if you create arrows etc. with stuff in its inventory,
		954	// cf will crash below with off-map x and y
		955	if (!inv)
		956	return;
		957
		958	/* Only if the space blocks everything do we not process -
		959	* if some form of movement is allowed, let objects
		960	* drop on that space.
		961	*/
		962	if (!drop_to_ground
		963	|| !map
		964	|| map->in_memory != MAP_ACTIVE
		965	|| map->no_drop
		966	|| ms ().move_block == MOVE_ALL)
		967	{
		968	while (inv)
		969	inv->destroy ();
		970	}
		971	else
		972	{ /* Put objects in inventory onto this space */
		973	while (inv)
		974	{
		975	object *op = inv;
		976
		977	if (op->flag [FLAG_STARTEQUIP]
		978	|| op->flag [FLAG_NO_DROP]
		979	|| op->type == RUNE
		980	|| op->type == TRAP
		981	|| op->flag [FLAG_IS_A_TEMPLATE]
		982	|| op->flag [FLAG_DESTROY_ON_DEATH])
		983	op->destroy ();
		984	else
		985	map->insert (op, x, y);
		986	}
		987	}
963	}	988	}
964		989
965	object *object::create ()	990	object *object::create ()
966	{	991	{
967	object *op = new object;	992	object *op = new object;
968	op->link ();	993	op->link ();
969	return op;	994	return op;
970	}	995	}
971		996
972	/*	997	static struct freed_map : maptile
973	* free_object() frees everything allocated by an object, removes
974	* it from the list of used objects, and puts it on the list of
975	* free objects. The IS_FREED() flag is set in the object.
976	* The object must have been removed by remove_ob() first for
977	* this function to succeed.
978	*
979	* If free_inventory is set, free inventory as well. Else drop items in
980	* inventory to the ground.
981	*/
982	void object::free (bool free_inventory)
983	{	998	{
984	if (QUERY_FLAG (this, FLAG_FREED))	999	freed_map ()
		1000	{
		1001	path = "<freed objects map>";
		1002	name = "/internal/freed_objects_map";
		1003	width = 3;
		1004	height = 3;
		1005	no_drop = 1;
		1006	no_reset = 1;
		1007
		1008	alloc ();
		1009	in_memory = MAP_ACTIVE;
		1010	}
		1011
		1012	~freed_map ()
		1013	{
		1014	destroy ();
		1015	}
		1016	} freed_map; // freed objects are moved here to avoid crashes
		1017
		1018	void
		1019	object::do_destroy ()
		1020	{
		1021	if (flag [FLAG_IS_LINKED])
		1022	remove_link ();
		1023
		1024	if (flag [FLAG_FRIENDLY])
		1025	remove_friendly_object (this);
		1026
		1027	remove ();
		1028
		1029	attachable::do_destroy ();
		1030
		1031	deactivate ();
		1032	unlink ();
		1033
		1034	flag [FLAG_FREED] = 1;
		1035
		1036	// hack to ensure that freed objects still have a valid map
		1037	map = &freed_map;
		1038	x = 1;
		1039	y = 1;
		1040
		1041	if (more)
		1042	{
		1043	more->destroy ();
		1044	more = 0;
		1045	}
		1046
		1047	head = 0;
		1048
		1049	// clear those pointers that likely might cause circular references
		1050	owner = 0;
		1051	enemy = 0;
		1052	attacked_by = 0;
		1053	current_weapon = 0;
		1054	}
		1055
		1056	void
		1057	object::destroy ()
		1058	{
		1059	if (destroyed ())
985	return;	1060	return;
986		1061
987	if (QUERY_FLAG (this, FLAG_FRIENDLY))	1062	if (!is_head () && !head->destroyed ())
988	remove_friendly_object (this);
989
990	if (!QUERY_FLAG (this, FLAG_REMOVED))
991	remove_ob (this);
992
993	SET_FLAG (this, FLAG_FREED);
994
995	if (more)
996	{
997	more->free (free_inventory);
998	more = 0;
999	}	1063	{
1000		1064	LOG (llevError | logBacktrace, "tried to destroy the tail of an object");
1001	if (inv)	1065	head->destroy ();
		1066	return;
1002	{	1067	}
1003	/* Only if the space blocks everything do we not process -
1004	* if some form of movement is allowed, let objects
1005	* drop on that space.
1006	*/
1007	if (free_inventory || !map || map->in_memory != MAP_IN_MEMORY || GET_MAP_MOVE_BLOCK (map, x, y) == MOVE_ALL)
1008	{
1009	object *op = inv;
1010		1068
1011	while (op)	1069	destroy_inv (false);
1012	{
1013	object *tmp = op->below;
1014	op->free (free_inventory);
1015	op = tmp;
1016	}
1017	}
1018	else
1019	{ /* Put objects in inventory onto this space */
1020	object *op = inv;
1021		1070
1022	while (op)	1071	if (is_head ())
1023	{	1072	if (sound_destroy)
1024	object *tmp = op->below;	1073	play_sound (sound_destroy);
		1074	else if (flag [FLAG_MONSTER])
		1075	play_sound (sound_find ("monster_destroy")); // quick hack, too lazy to create a generic mechanism
1025		1076
1026	remove_ob (op);	1077	attachable::destroy ();
1027
1028	if (QUERY_FLAG (op, FLAG_STARTEQUIP)
1029	|| QUERY_FLAG (op, FLAG_NO_DROP) || op->type == RUNE || op->type == TRAP || QUERY_FLAG (op, FLAG_IS_A_TEMPLATE))
1030	free_object (op);
1031	else
1032	{
1033	op->x = x;
1034	op->y = y;
1035	insert_ob_in_map (op, map, 0, 0); /* Insert in same map as the envir */
1036	}
1037
1038	op = tmp;
1039	}
1040	}
1041	}
1042
1043	// clear those pointers that likely might have circular references to us
1044	owner = 0;
1045	enemy = 0;
1046	attacked_by = 0;
1047
1048	/* Remove object from the active list */
1049	speed = 0;
1050	update_ob_speed (this);
1051
1052	unlink ();
1053
1054	mortals.push_back (this);
1055	}	1078	}
1056		1079
1057	/*	1080	/* op->remove ():
1058	* sub_weight() recursively (outwards) subtracts a number from the
1059	* weight of an object (and what is carried by it's environment(s)).
1060	*/
1061
1062	void
1063	sub_weight (object *op, signed long weight)
1064	{
1065	while (op != NULL)
1066	{
1067	if (op->type == CONTAINER)
1068	{
1069	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1070	}
1071	op->carrying -= weight;
1072	op = op->env;
1073	}
1074	}
1075
1076	/* remove_ob(op):
1077	* This function removes the object op from the linked list of objects	1081	* This function removes the object op from the linked list of objects
1078	* which it is currently tied to. When this function is done, the	1082	* which it is currently tied to. When this function is done, the
1079	* object will have no environment. If the object previously had an	1083	* object will have no environment. If the object previously had an
1080	* environment, the x and y coordinates will be updated to	1084	* environment, the x and y coordinates will be updated to
1081	* the previous environment.	1085	* the previous environment.
1082	* Beware: This function is called from the editor as well!
1083	*/	1086	*/
1084
1085	void	1087	void
1086	remove_ob (object *op)	1088	object::do_remove ()
1087	{	1089	{
1088	object *	1090	if (flag [FLAG_REMOVED])
1089	tmp, *
1090	last = NULL;
1091	object *
1092	otmp;
1093
1094	tag_t
1095	tag;
1096	int
1097	check_walk_off;
1098	mapstruct *
1099	m;
1100
1101	sint16
1102	x,
1103	y;
1104
1105	if (QUERY_FLAG (op, FLAG_REMOVED))
1106	return;	1091	return;
1107		1092
1108	SET_FLAG (op, FLAG_REMOVED);	1093	INVOKE_OBJECT (REMOVE, this);
1109		1094
1110	if (op->more != NULL)	1095	flag [FLAG_REMOVED] = true;
1111	remove_ob (op->more);	1096
		1097	if (more)
		1098	more->remove ();
1112		1099
1113	/*	1100	/*
1114	* In this case, the object to be removed is in someones	1101	* In this case, the object to be removed is in someones
1115	* inventory.	1102	* inventory.
1116	*/	1103	*/
1117	if (op->env != NULL)	1104	if (env)
1118	{	1105	{
1119	if (op->nrof)	1106	flag [FLAG_REMOVED] = false; // hack around the issue of visible_to checking flag_removed
1120	sub_weight (op->env, op->weight * op->nrof);	1107	if (object *pl = visible_to ())
1121	else	1108	esrv_del_item (pl->contr, count);
1122	sub_weight (op->env, op->weight + op->carrying);	1109	flag [FLAG_REMOVED] = true; // hack around the issue of visible_to checking flag_removed
		1110
		1111	adjust_weight (env, -total_weight ());
		1112
		1113	object *pl = in_player ();
		1114
		1115	/* we set up values so that it could be inserted into
		1116	* the map, but we don't actually do that - it is up
		1117	* to the caller to decide what we want to do.
		1118	*/
		1119	map = env->map;
		1120	x = env->x;
		1121	y = env->y;
		1122
		1123	// make sure cmov optimisation is applicable
		1124	*(above ? &above->below : &env->inv) = below;
		1125	*(below ? &below->above : &above ) = above; // &above is just a dummy
		1126
		1127	above = 0;
		1128	below = 0;
		1129	env = 0;
1123		1130
1124	/* NO_FIX_PLAYER is set when a great many changes are being	1131	/* NO_FIX_PLAYER is set when a great many changes are being
1125	* made to players inventory. If set, avoiding the call	1132	* made to players inventory. If set, avoiding the call
1126	* to save cpu time.	1133	* to save cpu time.
1127	*/	1134	*/
1128	if ((otmp = is_player_inv (op->env)) != NULL && otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))	1135	if (pl)
1129	fix_player (otmp);	1136	if (pl->is_player () && (glow_radius || !QUERY_FLAG (pl, FLAG_NO_FIX_PLAYER)))
		1137	{
		1138	pl->update_stats ();
1130		1139
1131	if (op->above != NULL)	1140	if (glow_radius && pl->is_on_map ())
1132	op->above->below = op->below;	1141	update_all_los (pl->map, pl->x, pl->y);
1133	else	1142	}
1134	op->env->inv = op->below;
1135
1136	if (op->below != NULL)
1137	op->below->above = op->above;
1138
1139	/* we set up values so that it could be inserted into
1140	* the map, but we don't actually do that - it is up
1141	* to the caller to decide what we want to do.
1142	*/
1143	op->x = op->env->x, op->y = op->env->y;
1144	op->map = op->env->map;
1145	op->above = NULL, op->below = NULL;
1146	op->env = NULL;
1147	}	1143	}
1148	else if (op->map)	1144	else if (map)
1149	{	1145	{
1150	x = op->x;	1146	map->dirty = true;
1151	y = op->y;	1147	mapspace &ms = this->ms ();
1152	m = get_map_from_coord (op->map, &x, &y);
1153		1148
1154	if (!m)	1149	if (object *pl = ms.player ())
1155	{	1150	{
1156	LOG (llevError, "remove_ob called when object was on map but appears to not be within valid coordinates? %s (%d,%d)\n",	1151	if (is_player ())
1157	op->map->path, op->x, op->y);
1158	/* in old days, we used to set x and y to 0 and continue.
1159	* it seems if we get into this case, something is probablye
1160	* screwed up and should be fixed.
1161	*/	1152	{
1162	abort ();	1153	if (!flag [FLAG_WIZPASS])
		1154	ms.smell = ++mapspace::smellcount; // remember the smell of the player
		1155
		1156	// leaving a spot always closes any open container on the ground
		1157	if (container && !container->env)
		1158	// this causes spurious floorbox updates, but it ensures
		1159	// that the CLOSE event is being sent.
		1160	close_container ();
		1161
		1162	--map->players;
		1163	map->touch ();
		1164	}
		1165	else if (pl->container_ () == this)
		1166	{
		1167	// removing a container should close it
		1168	close_container ();
		1169	}
		1170
		1171	esrv_del_item (pl->contr, count);
1163	}	1172	}
1164		1173
1165	if (op->map != m)
1166	LOG (llevDebug, "remove_ob: Object not really on map it claimed to be on? %s != %s, %d,%d != %d,%d\n",
1167	op->map->path, m->path, op->x, op->y, x, y);
1168
1169	/* Re did the following section of code - it looks like it had
1170	* lots of logic for things we no longer care about
1171	*/
1172
1173	/* link the object above us */	1174	/* link the object above us */
1174	if (op->above)	1175	// re-link, make sure compiler can easily use cmove
1175	op->above->below = op->below;	1176	*(above ? &above->below : &ms.top) = below;
1176	else	1177	*(below ? &below->above : &ms.bot) = above;
1177	SET_MAP_TOP (m, x, y, op->below); /* we were top, set new top */
1178		1178
1179	/* Relink the object below us, if there is one */	1179	above = 0;
1180	if (op->below)	1180	below = 0;
1181	op->below->above = op->above;	1181
1182	else	1182	ms.invalidate ();
		1183
		1184	if (map->in_memory == MAP_SAVING)
		1185	return;
		1186
		1187	int check_walk_off = !flag [FLAG_NO_APPLY];
		1188
		1189	if (object *pl = ms.player ())
1183	{	1190	{
1184	/* Nothing below, which means we need to relink map object for this space	1191	if (pl->container_ () == this)
1185	* use translated coordinates in case some oddness with map tiling is	1192	/* If a container that the player is currently using somehow gets
1186	* evident	1193	* removed (most likely destroyed), update the player view
		1194	* appropriately.
1187	*/	1195	*/
1188	if (GET_MAP_OB (m, x, y) != op)	1196	pl->close_container ();
1189	{
1190	dump_object (op);
1191	LOG (llevError,
1192	"remove_ob: GET_MAP_OB does not return object to be removed even though it appears to be on the bottom?\n%s\n", errmsg);
1193	dump_object (GET_MAP_OB (m, x, y));
1194	LOG (llevError, "%s\n", errmsg);
1195	}
1196		1197
1197	SET_MAP_OB (m, x, y, op->above); /* goes on above it. */	1198	//TODO: the floorbox prev/next might need updating
		1199	//esrv_del_item (pl->contr, count);
		1200	//TODO: update floorbox to preserve ordering
		1201	if (pl->contr->ns)
		1202	pl->contr->ns->floorbox_update ();
1198	}	1203	}
1199		1204
1200	op->above = 0;	1205	if (check_walk_off)
1201	op->below = 0;	1206	for (object *above, *tmp = ms.bot; tmp; tmp = above)
1202
1203	if (op->map->in_memory == MAP_SAVING)
1204	return;
1205
1206	tag = op->count;
1207	check_walk_off = !QUERY_FLAG (op, FLAG_NO_APPLY);
1208
1209	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)
1210	{	1207	{
		1208	above = tmp->above;
		1209
1211	/* No point updating the players look faces if he is the object	1210	/* No point updating the players look faces if he is the object
1212	* being removed.	1211	* being removed.
1213	*/
1214
1215	if (tmp->type == PLAYER && tmp != op)
1216	{
1217	/* If a container that the player is currently using somehow gets
1218	* removed (most likely destroyed), update the player view
1219	* appropriately.
1220	*/	1212	*/
1221	if (tmp->container == op)
1222	{
1223	CLEAR_FLAG (op, FLAG_APPLIED);
1224	tmp->container = NULL;
1225	}
1226		1213
1227	tmp->contr->socket.update_look = 1;	1214	/* See if object moving off should effect something */
		1215	if ((move_type & tmp->move_off)
		1216	&& (move_type & ~tmp->move_off & ~tmp->move_block) == 0)
		1217	move_apply (tmp, this, 0);
1228	}	1218	}
1229		1219
1230	/* See if player moving off should effect something */	1220	if (affects_los ())
1231	if (check_walk_off && ((op->move_type & tmp->move_off) && (op->move_type & ~tmp->move_off & ~tmp->move_block) == 0))
1232	{
1233	move_apply (tmp, op, NULL);
1234
1235	if (was_destroyed (op, tag))
1236	{
1237	LOG (llevError, "BUG: remove_ob(): name %s, archname %s destroyed " "leaving object\n", &tmp->name, &tmp->arch->name);
1238	}
1239	}
1240
1241	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */
1242
1243	if (tmp->above == tmp)
1244	tmp->above = NULL;
1245
1246	last = tmp;
1247	}
1248
1249	/* last == NULL of there are no objects on this space */
1250	if (last == NULL)
1251	{
1252	/* set P_NEED_UPDATE, otherwise update_position will complain. In theory,
1253	* we could preserve the flags (GET_MAP_FLAGS), but update_position figures
1254	* those out anyways, and if there are any flags set right now, they won't
1255	* be correct anyways.
1256	*/
1257	SET_MAP_FLAGS (op->map, op->x, op->y, P_NEED_UPDATE);
1258	update_position (op->map, op->x, op->y);
1259	}
1260	else
1261	update_object (last, UP_OBJ_REMOVE);
1262
1263	if (QUERY_FLAG (op, FLAG_BLOCKSVIEW) || (op->glow_radius != 0))
1264	update_all_los (op->map, op->x, op->y);	1221	update_all_los (map, x, y);
1265	}	1222	}
1266	}	1223	}
1267		1224
1268	/*	1225	/*
1269	* merge_ob(op,top):	1226	* merge_ob(op,top):
…		…
1277	merge_ob (object *op, object *top)	1234	merge_ob (object *op, object *top)
1278	{	1235	{
1279	if (!op->nrof)	1236	if (!op->nrof)
1280	return 0;	1237	return 0;
1281		1238
1282	if (top == NULL)	1239	if (!top)
1283	for (top = op; top != NULL && top->above != NULL; top = top->above);	1240	for (top = op; top && top->above; top = top->above)
		1241	;
1284		1242
1285	for (; top != NULL; top = top->below)	1243	for (; top; top = top->below)
1286	{	1244	if (object::can_merge (op, top))
1287	if (top == op)
1288	continue;
1289	if (CAN_MERGE (op, top))
1290	{	1245	{
1291	top->nrof += op->nrof;	1246	top->nrof += op->nrof;
1292		1247
1293	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/	1248	if (object *pl = top->visible_to ())
1294	op->weight = 0; /* Don't want any adjustements now */	1249	esrv_update_item (UPD_NROF, pl, top);
1295	remove_ob (op);	1250
1296	free_object (op);	1251	op->weight = 0; // cancel the addition above
		1252	op->carrying = 0; // must be 0 already
		1253
		1254	op->destroy ();
		1255
1297	return top;	1256	return top;
1298	}	1257	}
1299	}
1300		1258
1301	return NULL;	1259	return 0;
1302	}	1260	}
1303		1261
		1262	void
		1263	object::expand_tail ()
		1264	{
		1265	if (more)
		1266	return;
		1267
		1268	object *prev = this;
		1269
		1270	for (archetype *at = (archetype *)arch->more; at; at = (archetype *)at->more)
		1271	{
		1272	object *op = arch_to_object (at);
		1273
		1274	op->name = name;
		1275	op->name_pl = name_pl;
		1276	op->title = title;
		1277
		1278	op->head = this;
		1279	prev->more = op;
		1280
		1281	prev = op;
		1282	}
		1283	}
		1284
1304	/*	1285	/*
1305	* same as insert_ob_in_map except it handle separate coordinates and do a clean	1286	* same as insert_ob_in_map except it handles separate coordinates and does a clean
1306	* job preparing multi-part monsters	1287	* job preparing multi-part monsters.
1307	*/	1288	*/
1308	object *	1289	object *
1309	insert_ob_in_map_at (object *op, mapstruct *m, object *originator, int flag, int x, int y)	1290	insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)
1310	{	1291	{
1311	object *tmp;	1292	op->remove ();
1312		1293
1313	if (op->head)
1314	op = op->head;
1315
1316	for (tmp = op; tmp; tmp = tmp->more)	1294	for (object *tmp = op->head_ (); tmp; tmp = tmp->more)
1317	{	1295	{
1318	tmp->x = x + tmp->arch->clone.x;	1296	tmp->x = x + tmp->arch->x;
1319	tmp->y = y + tmp->arch->clone.y;	1297	tmp->y = y + tmp->arch->y;
1320	}	1298	}
1321		1299
1322	return insert_ob_in_map (op, m, originator, flag);	1300	return insert_ob_in_map (op, m, originator, flag);
1323	}	1301	}
1324		1302
…		…
1340	* Return value:	1318	* Return value:
1341	* new object if 'op' was merged with other object	1319	* new object if 'op' was merged with other object
1342	* NULL if 'op' was destroyed	1320	* NULL if 'op' was destroyed
1343	* just 'op' otherwise	1321	* just 'op' otherwise
1344	*/	1322	*/
1345
1346	object *	1323	object *
1347	insert_ob_in_map (object *op, mapstruct *m, object *originator, int flag)	1324	insert_ob_in_map (object *op, maptile *m, object *originator, int flag)
1348	{	1325	{
1349	object *tmp, *top, *floor = NULL;	1326	op->remove ();
1350	sint16 x, y;
1351		1327
1352	if (QUERY_FLAG (op, FLAG_FREED))	1328	if (m == &freed_map)//D TODO: remove soon
1353	{	1329	{//D
1354	LOG (llevError, "Trying to insert freed object!\n");	1330	LOG (llevError | logBacktrace, "tries to insret object on freed objects map: %s", op->debug_desc ());//D
1355	return NULL;
1356	}	1331	}//D
1357
1358	if (m == NULL)
1359	{
1360	dump_object (op);
1361	LOG (llevError, "Trying to insert in null-map!\n%s\n", errmsg);
1362	return op;
1363	}
1364
1365	if (out_of_map (m, op->x, op->y))
1366	{
1367	dump_object (op);
1368	LOG (llevError, "Trying to insert object outside the map.\n%s\n", errmsg);
1369	#ifdef MANY_CORES
1370	/* Better to catch this here, as otherwise the next use of this object
1371	* is likely to cause a crash. Better to find out where it is getting
1372	* improperly inserted.
1373	*/
1374	abort ();
1375	#endif
1376	return op;
1377	}
1378
1379	if (!QUERY_FLAG (op, FLAG_REMOVED))
1380	{
1381	dump_object (op);
1382	LOG (llevError, "Trying to insert (map) inserted object.\n%s\n", errmsg);
1383	return op;
1384	}
1385
1386	if (op->more != NULL)
1387	{
1388	/* The part may be on a different map. */
1389
1390	object *more = op->more;
1391
1392	/* We really need the caller to normalize coordinates - if
1393	* we set the map, that doesn't work if the location is within
1394	* a map and this is straddling an edge. So only if coordinate
1395	* is clear wrong do we normalize it.
1396	*/
1397	if (OUT_OF_REAL_MAP (more->map, more->x, more->y))
1398	more->map = get_map_from_coord (m, &more->x, &more->y);
1399	else if (!more->map)
1400	{
1401	/* For backwards compatibility - when not dealing with tiled maps,
1402	* more->map should always point to the parent.
1403	*/
1404	more->map = m;
1405	}
1406
1407	if (insert_ob_in_map (more, more->map, originator, flag) == NULL)
1408	{
1409	if (!op->head)
1410	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");
1411
1412	return NULL;
1413	}
1414	}
1415
1416	CLEAR_FLAG (op, FLAG_REMOVED);
1417		1332
1418	/* Ideally, the caller figures this out. However, it complicates a lot	1333	/* Ideally, the caller figures this out. However, it complicates a lot
1419	* of areas of callers (eg, anything that uses find_free_spot would now	1334	* of areas of callers (eg, anything that uses find_free_spot would now
1420	* need extra work	1335	* need extra work
1421	*/	1336	*/
1422	op->map = get_map_from_coord (m, &op->x, &op->y);	1337	maptile *newmap = m;
1423	x = op->x;	1338	if (!xy_normalise (newmap, op->x, op->y))
1424	y = op->y;	1339	{
		1340	op->head_ ()->destroy ();// remove head_ once all tail object destroyers found
		1341	return 0;
		1342	}
		1343
		1344	if (object *more = op->more)
		1345	if (!insert_ob_in_map (more, m, originator, flag))
		1346	return 0;
		1347
		1348	op->flag [FLAG_REMOVED] = false;
		1349	op->env = 0;
		1350	op->map = newmap;
		1351
		1352	mapspace &ms = op->ms ();
1425		1353
1426	/* this has to be done after we translate the coordinates.	1354	/* this has to be done after we translate the coordinates.
1427	*/	1355	*/
1428	if (op->nrof && !(flag & INS_NO_MERGE))	1356	if (op->nrof && !(flag & INS_NO_MERGE))
1429	for (tmp = GET_MAP_OB (op->map, x, y); tmp != NULL; tmp = tmp->above)	1357	for (object *tmp = ms.bot; tmp; tmp = tmp->above)
1430	if (CAN_MERGE (op, tmp))	1358	if (object::can_merge (op, tmp))
1431	{	1359	{
		1360	// TODO: we actually want to update tmp, not op,
		1361	// but some caller surely breaks when we return tmp
		1362	// from here :/
1432	op->nrof += tmp->nrof;	1363	op->nrof += tmp->nrof;
1433	remove_ob (tmp);	1364	tmp->destroy ();
1434	free_object (tmp);
1435	}	1365	}
1436		1366
1437	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */	1367	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */
1438	CLEAR_FLAG (op, FLAG_INV_LOCKED);	1368	CLEAR_FLAG (op, FLAG_INV_LOCKED);
1439		1369
…		…
1446	{	1376	{
1447	LOG (llevError, "insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");	1377	LOG (llevError, "insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");
1448	abort ();	1378	abort ();
1449	}	1379	}
1450		1380
		1381	if (!originator->is_on_map ())
		1382	{
		1383	LOG (llevError, "insert_ob_in_map(%s) called with INS_BELOW_ORIGINATOR when originator '%s' not on map",
		1384	op->debug_desc (), originator->debug_desc ());
		1385	abort ();
		1386	}
		1387
1451	op->above = originator;	1388	op->above = originator;
1452	op->below = originator->below;	1389	op->below = originator->below;
1453
1454	if (op->below)
1455	op->below->above = op;
1456	else
1457	SET_MAP_OB (op->map, op->x, op->y, op);
1458
1459	/* since *below* originator, no need to update top */
1460	originator->below = op;	1390	originator->below = op;
		1391
		1392	*(op->below ? &op->below->above : &ms.bot) = op;
1461	}	1393	}
1462	else	1394	else
1463	{	1395	{
		1396	object *floor = 0;
		1397	object *top = ms.top;
		1398
1464	/* If there are other objects, then */	1399	/* If there are other objects, then */
1465	if ((!(flag & INS_MAP_LOAD)) && ((top = GET_MAP_OB (op->map, op->x, op->y)) != NULL))	1400	if (top)
1466	{	1401	{
1467	object *last = NULL;
1468
1469	/*	1402	/*
1470	* If there are multiple objects on this space, we do some trickier handling.	1403	* If there are multiple objects on this space, we do some trickier handling.
1471	* We've already dealt with merging if appropriate.	1404	* We've already dealt with merging if appropriate.
1472	* Generally, we want to put the new object on top. But if	1405	* Generally, we want to put the new object on top. But if
1473	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last	1406	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last
…		…
1476	* once we get to them. This reduces the need to traverse over all of	1409	* once we get to them. This reduces the need to traverse over all of
1477	* them when adding another one - this saves quite a bit of cpu time	1410	* them when adding another one - this saves quite a bit of cpu time
1478	* when lots of spells are cast in one area. Currently, it is presumed	1411	* when lots of spells are cast in one area. Currently, it is presumed
1479	* that flying non pickable objects are spell objects.	1412	* that flying non pickable objects are spell objects.
1480	*/	1413	*/
1481		1414	for (object *tmp = ms.bot; tmp; tmp = tmp->above)
1482	while (top != NULL)
1483	{	1415	{
1484	if (QUERY_FLAG (top, FLAG_IS_FLOOR) || QUERY_FLAG (top, FLAG_OVERLAY_FLOOR))	1416	if (QUERY_FLAG (tmp, FLAG_IS_FLOOR) || QUERY_FLAG (tmp, FLAG_OVERLAY_FLOOR))
1485	floor = top;	1417	floor = tmp;
1486		1418
1487	if (QUERY_FLAG (top, FLAG_NO_PICK) && (top->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (top, FLAG_IS_FLOOR))	1419	if (QUERY_FLAG (tmp, FLAG_NO_PICK) && (tmp->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (tmp, FLAG_IS_FLOOR))
1488	{	1420	{
1489	/* We insert above top, so we want this object below this */	1421	/* We insert above top, so we want this object below this */
1490	top = top->below;	1422	top = tmp->below;
1491	break;	1423	break;
1492	}	1424	}
1493		1425
1494	last = top;
1495	top = top->above;	1426	top = tmp;
1496	}	1427	}
1497
1498	/* Don't want top to be NULL, so set it to the last valid object */
1499	top = last;
1500		1428
1501	/* We let update_position deal with figuring out what the space	1429	/* We let update_position deal with figuring out what the space
1502	* looks like instead of lots of conditions here.	1430	* looks like instead of lots of conditions here.
1503	* makes things faster, and effectively the same result.	1431	* makes things faster, and effectively the same result.
1504	*/	1432	*/
1505		1433
1506	/* Have object 'fall below' other objects that block view.	1434	/* Have object 'fall below' other objects that block view.
1507	* Unless those objects are exits, type 66	1435	* Unless those objects are exits.
1508	* If INS_ON_TOP is used, don't do this processing	1436	* If INS_ON_TOP is used, don't do this processing
1509	* Need to find the object that in fact blocks view, otherwise	1437	* Need to find the object that in fact blocks view, otherwise
1510	* stacking is a bit odd.	1438	* stacking is a bit odd.
1511	*/	1439	*/
1512	if (!(flag & INS_ON_TOP) &&	1440	if (!(flag & INS_ON_TOP)
1513	(get_map_flags (op->map, NULL, op->x, op->y, NULL, NULL) & P_BLOCKSVIEW) && (op->face && !op->face->visibility))	1441	&& ms.flags () & P_BLOCKSVIEW
		1442	&& (op->face && !faces [op->face].visibility))
1514	{	1443	{
		1444	object *last;
		1445
1515	for (last = top; last != floor; last = last->below)	1446	for (last = top; last != floor; last = last->below)
1516	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))	1447	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))
1517	break;	1448	break;
		1449
1518	/* Check to see if we found the object that blocks view,	1450	/* Check to see if we found the object that blocks view,
1519	* and make sure we have a below pointer for it so that	1451	* and make sure we have a below pointer for it so that
1520	* we can get inserted below this one, which requires we	1452	* we can get inserted below this one, which requires we
1521	* set top to the object below us.	1453	* set top to the object below us.
1522	*/	1454	*/
1523	if (last && last->below && last != floor)	1455	if (last && last->below && last != floor)
1524	top = last->below;	1456	top = last->below;
1525	}	1457	}
1526	} /* If objects on this space */	1458	} /* If objects on this space */
1527		1459
1528	if (flag & INS_MAP_LOAD)
1529	top = GET_MAP_TOP (op->map, op->x, op->y);
1530
1531	if (flag & INS_ABOVE_FLOOR_ONLY)	1460	if (flag & INS_ABOVE_FLOOR_ONLY)
1532	top = floor;	1461	top = floor;
1533		1462
1534	/* Top is the object that our object (op) is going to get inserted above.	1463	// insert object above top, or bottom-most if top = 0
1535	*/
1536
1537	/* First object on this space */
1538	if (!top)	1464	if (!top)
1539	{	1465	{
1540	op->above = GET_MAP_OB (op->map, op->x, op->y);
1541
1542	if (op->above)
1543	op->above->below = op;
1544
1545	op->below = NULL;	1466	op->below = 0;
1546	SET_MAP_OB (op->map, op->x, op->y, op);	1467	op->above = ms.bot;
		1468	ms.bot = op;
		1469
		1470	*(op->above ? &op->above->below : &ms.top) = op;
1547	}	1471	}
1548	else	1472	else
1549	{ /* get inserted into the stack above top */	1473	{
1550	op->above = top->above;	1474	op->above = top->above;
1551
1552	if (op->above)
1553	op->above->below = op;	1475	top->above = op;
1554		1476
1555	op->below = top;	1477	op->below = top;
1556	top->above = op;	1478	*(op->above ? &op->above->below : &ms.top) = op;
1557	}	1479	}
		1480	}
1558		1481
1559	if (op->above == NULL)	1482	if (op->is_player ())
1560	SET_MAP_TOP (op->map, op->x, op->y, op);	1483	{
1561	} /* else not INS_BELOW_ORIGINATOR */
1562
1563	if (op->type == PLAYER)
1564	op->contr->do_los = 1;	1484	op->contr->do_los = 1;
		1485	++op->map->players;
		1486	op->map->touch ();
		1487	}
1565		1488
1566	/* If we have a floor, we know the player, if any, will be above	1489	op->map->dirty = true;
1567	* it, so save a few ticks and start from there.	1490
1568	*/	1491	if (object *pl = ms.player ())
1569	if (!(flag & INS_MAP_LOAD))	1492	//TODO: the floorbox prev/next might need updating
1570	for (tmp = floor ? floor : GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)	1493	//esrv_send_item (pl, op);
1571	if (tmp->type == PLAYER)	1494	//TODO: update floorbox to preserve ordering
1572	tmp->contr->socket.update_look = 1;	1495	if (pl->contr->ns)
		1496	pl->contr->ns->floorbox_update ();
1573		1497
1574	/* If this object glows, it may affect lighting conditions that are	1498	/* If this object glows, it may affect lighting conditions that are
1575	* visible to others on this map. But update_all_los is really	1499	* visible to others on this map. But update_all_los is really
1576	* an inefficient way to do this, as it means los for all players	1500	* an inefficient way to do this, as it means los for all players
1577	* on the map will get recalculated. The players could very well	1501	* on the map will get recalculated. The players could very well
1578	* be far away from this change and not affected in any way -	1502	* be far away from this change and not affected in any way -
1579	* this should get redone to only look for players within range,	1503	* this should get redone to only look for players within range,
1580	* or just updating the P_NEED_UPDATE for spaces within this area	1504	* or just updating the P_UPTODATE for spaces within this area
1581	* of effect may be sufficient.	1505	* of effect may be sufficient.
1582	*/	1506	*/
1583	if (MAP_DARKNESS (op->map) && (op->glow_radius != 0))	1507	if (op->affects_los ())
		1508	{
		1509	op->ms ().invalidate ();
1584	update_all_los (op->map, op->x, op->y);	1510	update_all_los (op->map, op->x, op->y);
		1511	}
1585		1512
1586	/* updates flags (blocked, alive, no magic, etc) for this map space */	1513	/* updates flags (blocked, alive, no magic, etc) for this map space */
1587	update_object (op, UP_OBJ_INSERT);	1514	update_object (op, UP_OBJ_INSERT);
1588		1515
		1516	INVOKE_OBJECT (INSERT, op);
		1517
1589	/* Don't know if moving this to the end will break anything. However,	1518	/* Don't know if moving this to the end will break anything. However,
1590	* we want to have update_look set above before calling this.	1519	* we want to have floorbox_update called before calling this.
1591	*	1520	*
1592	* check_move_on() must be after this because code called from	1521	* check_move_on() must be after this because code called from
1593	* check_move_on() depends on correct map flags (so functions like	1522	* check_move_on() depends on correct map flags (so functions like
1594	* blocked() and wall() work properly), and these flags are updated by	1523	* blocked() and wall() work properly), and these flags are updated by
1595	* update_object().	1524	* update_object().
1596	*/	1525	*/
1597		1526
1598	/* if this is not the head or flag has been passed, don't check walk on status */	1527	/* if this is not the head or flag has been passed, don't check walk on status */
1599	if (!(flag & INS_NO_WALK_ON) && !op->head)	1528	if (!(flag & INS_NO_WALK_ON) && op->is_head ())
1600	{	1529	{
1601	if (check_move_on (op, originator))	1530	if (check_move_on (op, originator))
1602	return NULL;	1531	return 0;
1603		1532
1604	/* If we are a multi part object, lets work our way through the check	1533	/* If we are a multi part object, lets work our way through the check
1605	* walk on's.	1534	* walk on's.
1606	*/	1535	*/
1607	for (tmp = op->more; tmp != NULL; tmp = tmp->more)	1536	for (object *tmp = op->more; tmp; tmp = tmp->more)
1608	if (check_move_on (tmp, originator))	1537	if (check_move_on (tmp, originator))
1609	return NULL;	1538	return 0;
1610	}	1539	}
1611		1540
1612	return op;	1541	return op;
1613	}	1542	}
1614		1543
1615	/* this function inserts an object in the map, but if it	1544	/* this function inserts an object in the map, but if it
1616	* finds an object of its own type, it'll remove that one first.	1545	* finds an object of its own type, it'll remove that one first.
1617	* op is the object to insert it under: supplies x and the map.	1546	* op is the object to insert it under: supplies x and the map.
1618	*/	1547	*/
1619	void	1548	void
1620	replace_insert_ob_in_map (const char *arch_string, object *op)	1549	replace_insert_ob_in_map (shstr_tmp archname, object *op)
1621	{	1550	{
1622	object *
1623	tmp;
1624	object *
1625	tmp1;
1626
1627	/* first search for itself and remove any old instances */	1551	/* first search for itself and remove any old instances */
1628		1552
1629	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)	1553	for (object *tmp = op->ms ().bot; tmp; tmp = tmp->above)
1630	{
1631	if (!strcmp (tmp->arch->name, arch_string)) /* same archetype */	1554	if (tmp->arch->archname == archname) /* same archetype */
1632	{	1555	tmp->destroy ();
1633	remove_ob (tmp);
1634	free_object (tmp);
1635	}
1636	}
1637		1556
1638	tmp1 = arch_to_object (find_archetype (arch_string));	1557	object *tmp = arch_to_object (archetype::find (archname));
1639		1558
1640	tmp1->x = op->x;	1559	tmp->x = op->x;
1641	tmp1->y = op->y;	1560	tmp->y = op->y;
		1561
1642	insert_ob_in_map (tmp1, op->map, op, 0);	1562	insert_ob_in_map (tmp, op->map, op, 0);
1643	}	1563	}
1644
1645	/*
1646	* get_split_ob(ob,nr) splits up ob into two parts. The part which
1647	* is returned contains nr objects, and the remaining parts contains
1648	* the rest (or is removed and freed if that number is 0).
1649	* On failure, NULL is returned, and the reason put into the
1650	* global static errmsg array.
1651	*/
1652		1564
1653	object *	1565	object *
1654	get_split_ob (object *orig_ob, uint32 nr)	1566	object::insert_at (object *where, object *originator, int flags)
1655	{	1567	{
1656	object *	1568	if (where->env)
1657	newob;	1569	return where->env->insert (this);
1658	int	1570	else
1659	is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);	1571	return where->map->insert (this, where->x, where->y, originator, flags);
1660
1661	if (orig_ob->nrof < nr)
1662	{
1663	sprintf (errmsg, "There are only %d %ss.", orig_ob->nrof ? orig_ob->nrof : 1, &orig_ob->name);
1664	return NULL;
1665	}
1666
1667	newob = object_create_clone (orig_ob);
1668
1669	if ((orig_ob->nrof -= nr) < 1)
1670	{
1671	if (!is_removed)
1672	remove_ob (orig_ob);
1673	free_object2 (orig_ob, 1);
1674	}
1675	else if (!is_removed)
1676	{
1677	if (orig_ob->env != NULL)
1678	sub_weight (orig_ob->env, orig_ob->weight * nr);
1679	if (orig_ob->env == NULL && orig_ob->map->in_memory != MAP_IN_MEMORY)
1680	{
1681	strcpy (errmsg, "Tried to split object whose map is not in memory.");
1682	LOG (llevDebug, "Error, Tried to split object whose map is not in memory.\n");
1683	return NULL;
1684	}
1685	}
1686
1687	newob->nrof = nr;
1688
1689	return newob;
1690	}	1572	}
1691		1573
		1574	// check whether we can put this into the map, respect max_volume, max_items
		1575	bool
		1576	object::can_drop_at (maptile *m, int x, int y, object *originator)
		1577	{
		1578	mapspace &ms = m->at (x, y);
		1579
		1580	int items = ms.items ();
		1581
		1582	if (!items // testing !items ensures we can drop at least one item
		1583	|| (items < m->max_items
		1584	&& ms.volume () < m->max_volume))
		1585	return true;
		1586
		1587	if (originator && originator->is_player ())
		1588	originator->contr->failmsg (format (
		1589	"No matter how hard you try, you just cannot put the %s here H<Try to remove some items from the floor first.>",
		1590	query_name ()
		1591	));
		1592
		1593	return false;
		1594	}
		1595
1692	/*	1596	/*
1693	* decrease_ob_nr(object, number) decreases a specified number from	1597	* decrease(object, number) decreases a specified number from
1694	* the amount of an object. If the amount reaches 0, the object	1598	* the amount of an object. If the amount reaches 0, the object
1695	* is subsequently removed and freed.	1599	* is subsequently removed and freed.
1696	*	1600	*
1697	* Return value: 'op' if something is left, NULL if the amount reached 0	1601	* Return value: 'op' if something is left, NULL if the amount reached 0
1698	*/	1602	*/
		1603	bool
		1604	object::decrease (sint32 nr)
		1605	{
		1606	if (!nr)
		1607	return true;
1699		1608
		1609	nr = min (nr, nrof);
		1610
		1611	if (nrof > nr)
		1612	{
		1613	nrof -= nr;
		1614	adjust_weight (env, -weight * max (1, nr)); // carrying == 0
		1615
		1616	if (object *pl = visible_to ())
		1617	esrv_update_item (UPD_NROF, pl, this);
		1618
		1619	return true;
		1620	}
		1621	else
		1622	{
		1623	destroy ();
		1624	return false;
		1625	}
		1626	}
		1627
		1628	/*
		1629	* split(ob,nr) splits up ob into two parts. The part which
		1630	* is returned contains nr objects, and the remaining parts contains
		1631	* the rest (or is removed and returned if that number is 0).
		1632	* On failure, NULL is returned.
		1633	*/
1700	object *	1634	object *
1701	decrease_ob_nr (object *op, uint32 i)	1635	object::split (sint32 nr)
1702	{	1636	{
1703	object *tmp;	1637	int have = number_of ();
1704	player *pl;
1705		1638
1706	if (i == 0) /* objects with op->nrof require this check */	1639	if (have < nr)
1707	return op;	1640	return 0;
1708		1641	else if (have == nr)
1709	if (i > op->nrof)
1710	i = op->nrof;
1711
1712	if (QUERY_FLAG (op, FLAG_REMOVED))
1713	op->nrof -= i;
1714	else if (op->env != NULL)
1715	{	1642	{
1716	/* is this object in the players inventory, or sub container
1717	* therein?
1718	*/
1719	tmp = is_player_inv (op->env);
1720	/* nope. Is this a container the player has opened?
1721	* If so, set tmp to that player.
1722	* IMO, searching through all the players will mostly
1723	* likely be quicker than following op->env to the map,
1724	* and then searching the map for a player.
1725	*/
1726	if (!tmp)
1727	{
1728	for (pl = first_player; pl; pl = pl->next)
1729	if (pl->ob->container == op->env)
1730	break;
1731	if (pl)
1732	tmp = pl->ob;
1733	else
1734	tmp = NULL;
1735	}
1736
1737	if (i < op->nrof)
1738	{
1739	sub_weight (op->env, op->weight * i);
1740	op->nrof -= i;
1741	if (tmp)
1742	{
1743	esrv_send_item (tmp, op);
1744	}
1745	}
1746	else
1747	{
1748	remove_ob (op);	1643	remove ();
1749	op->nrof = 0;	1644	return this;
1750	if (tmp)
1751	{
1752	esrv_del_item (tmp->contr, op->count);
1753	}
1754	}
1755	}	1645	}
1756	else	1646	else
1757	{	1647	{
1758	object *above = op->above;	1648	decrease (nr);
1759		1649
1760	if (i < op->nrof)	1650	object *op = deep_clone ();
1761	op->nrof -= i;	1651	op->nrof = nr;
1762	else
1763	{
1764	remove_ob (op);
1765	op->nrof = 0;
1766	}
1767
1768	/* Since we just removed op, op->above is null */
1769	for (tmp = above; tmp != NULL; tmp = tmp->above)
1770	if (tmp->type == PLAYER)
1771	{
1772	if (op->nrof)
1773	esrv_send_item (tmp, op);
1774	else
1775	esrv_del_item (tmp->contr, op->count);
1776	}
1777	}
1778
1779	if (op->nrof)
1780	return op;	1652	return op;
1781	else
1782	{	1653	}
1783	free_object (op);	1654	}
		1655
		1656	object *
		1657	insert_ob_in_ob (object *op, object *where)
		1658	{
		1659	if (!where)
		1660	{
		1661	char *dump = dump_object (op);
		1662	LOG (llevError, "Trying to put object in NULL.\n%s\n", dump);
		1663	free (dump);
1784	return NULL;	1664	return op;
1785	}
1786	}
1787
1788	/*
1789	* add_weight(object, weight) adds the specified weight to an object,
1790	* and also updates how much the environment(s) is/are carrying.
1791	*/
1792
1793	void
1794	add_weight (object *op, signed long weight)
1795	{
1796	while (op != NULL)
1797	{	1665	}
1798	if (op->type == CONTAINER)
1799	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1800		1666
1801	op->carrying += weight;	1667	if (where->head_ () != where)
1802	op = op->env;
1803	}	1668	{
1804	}	1669	LOG (llevError | logBacktrace, "Warning: Tried to insert object into wrong part of multipart object.\n");
		1670	where = where->head;
		1671	}
1805		1672
		1673	return where->insert (op);
		1674	}
		1675
1806	/*	1676	/*
1807	* insert_ob_in_ob(op,environment):	1677	* env->insert (op)
1808	* This function inserts the object op in the linked list	1678	* This function inserts the object op in the linked list
1809	* inside the object environment.	1679	* inside the object environment.
1810	*	1680	*
1811	* Eneq(@csd.uu.se): Altered insert_ob_in_ob to make things picked up enter
1812	* the inventory at the last position or next to other objects of the same
1813	* type.
1814	* Frank: Now sorted by type, archetype and magic!
1815	*
1816	* The function returns now pointer to inserted item, and return value can	1681	* The function returns now pointer to inserted item, and return value can
1817	* be != op, if items are merged. -Tero	1682	* be != op, if items are merged. -Tero
1818	*/	1683	*/
1819
1820	object *	1684	object *
1821	insert_ob_in_ob (object *op, object *where)	1685	object::insert (object *op)
1822	{	1686	{
1823	object *
1824	tmp, *
1825	otmp;
1826
1827	if (!QUERY_FLAG (op, FLAG_REMOVED))
1828	{
1829	dump_object (op);
1830	LOG (llevError, "Trying to insert (ob) inserted object.\n%s\n", errmsg);
1831	return op;
1832	}
1833
1834	if (where == NULL)
1835	{
1836	dump_object (op);
1837	LOG (llevError, "Trying to put object in NULL.\n%s\n", errmsg);
1838	return op;
1839	}
1840
1841	if (where->head)
1842	{
1843	LOG (llevDebug, "Warning: Tried to insert object wrong part of multipart object.\n");
1844	where = where->head;
1845	}
1846
1847	if (op->more)	1687	if (op->more)
1848	{	1688	{
1849	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);	1689	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);
1850	return op;	1690	return op;
1851	}	1691	}
1852		1692
1853	CLEAR_FLAG (op, FLAG_OBJ_ORIGINAL);	1693	op->remove ();
1854	CLEAR_FLAG (op, FLAG_REMOVED);	1694
		1695	op->flag [FLAG_OBJ_ORIGINAL] = 0;
		1696
1855	if (op->nrof)	1697	if (op->nrof)
1856	{
1857	for (tmp = where->inv; tmp != NULL; tmp = tmp->below)	1698	for (object *tmp = inv; tmp; tmp = tmp->below)
1858	if (CAN_MERGE (tmp, op))	1699	if (object::can_merge (tmp, op))
1859	{	1700	{
1860	/* return the original object and remove inserted object	1701	/* return the original object and remove inserted object
1861	(client needs the original object) */	1702	(client needs the original object) */
1862	tmp->nrof += op->nrof;	1703	tmp->nrof += op->nrof;
1863	/* Weight handling gets pretty funky. Since we are adding to	1704
1864	* tmp->nrof, we need to increase the weight.	1705	if (object *pl = tmp->visible_to ())
1865	*/	1706	esrv_update_item (UPD_NROF, pl, tmp);
1866	add_weight (where, op->weight * op->nrof);	1707
1867	SET_FLAG (op, FLAG_REMOVED);	1708	adjust_weight (this, op->total_weight ());
1868	free_object (op); /* free the inserted object */	1709
		1710	op->destroy ();
1869	op = tmp;	1711	op = tmp;
1870	remove_ob (op); /* and fix old object's links */	1712	goto inserted;
1871	CLEAR_FLAG (op, FLAG_REMOVED);
1872	break;
1873	}	1713	}
1874		1714
1875	/* I assume combined objects have no inventory	1715	op->owner = 0; // it's his/hers now. period.
1876	* We add the weight - this object could have just been removed
1877	* (if it was possible to merge). calling remove_ob will subtract
1878	* the weight, so we need to add it in again, since we actually do
1879	* the linking below
1880	*/
1881	add_weight (where, op->weight * op->nrof);
1882	}
1883	else
1884	add_weight (where, (op->weight + op->carrying));
1885
1886	otmp = is_player_inv (where);
1887	if (otmp && otmp->contr != NULL)
1888	{
1889	if (!QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1890	fix_player (otmp);
1891	}
1892
1893	op->map = NULL;	1716	op->map = 0;
1894	op->env = where;	1717	op->x = 0;
		1718	op->y = 0;
		1719
1895	op->above = NULL;	1720	op->above = 0;
1896	op->below = NULL;	1721	op->below = inv;
1897	op->x = 0, op->y = 0;	1722	op->env = this;
1898		1723
		1724	if (inv)
		1725	inv->above = op;
		1726
		1727	inv = op;
		1728
		1729	op->flag [FLAG_REMOVED] = 0;
		1730
		1731	if (object *pl = op->visible_to ())
		1732	esrv_send_item (pl, op);
		1733
		1734	adjust_weight (this, op->total_weight ());
		1735
		1736	inserted:
1899	/* reset the light list and los of the players on the map */	1737	/* reset the light list and los of the players on the map */
1900	if ((op->glow_radius != 0) && where->map)	1738	if (op->glow_radius && is_on_map ())
1901	{
1902	#ifdef DEBUG_LIGHTS
1903	LOG (llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n", op->name);
1904	#endif /* DEBUG_LIGHTS */
1905	if (MAP_DARKNESS (where->map))
1906	update_all_los (where->map, where->x, where->y);
1907	}	1739	{
1908		1740	update_stats ();
1909	/* Client has no idea of ordering so lets not bother ordering it here.	1741	update_all_los (map, x, y);
1910	* It sure simplifies this function...
1911	*/
1912	if (where->inv == NULL)
1913	where->inv = op;
1914	else
1915	{	1742	}
1916	op->below = where->inv;	1743	else if (is_player () && !flag [FLAG_NO_FIX_PLAYER])
1917	op->below->above = op;	1744	// if this is a player's inventory, update stats
1918	where->inv = op;	1745	update_stats ();
1919	}	1746
		1747	INVOKE_OBJECT (INSERT, this);
		1748
1920	return op;	1749	return op;
1921	}	1750	}
1922		1751
1923	/*	1752	/*
1924	* Checks if any objects has a move_type that matches objects	1753	* Checks if any objects has a move_type that matches objects
…		…
1938	*	1767	*
1939	* MSW 2001-07-08: Check all objects on space, not just those below	1768	* MSW 2001-07-08: Check all objects on space, not just those below
1940	* object being inserted. insert_ob_in_map may not put new objects	1769	* object being inserted. insert_ob_in_map may not put new objects
1941	* on top.	1770	* on top.
1942	*/	1771	*/
1943
1944	int	1772	int
1945	check_move_on (object *op, object *originator)	1773	check_move_on (object *op, object *originator)
1946	{	1774	{
1947	object *
1948	tmp;
1949	tag_t
1950	tag;
1951	mapstruct *
1952	m = op->map;
1953	int
1954	x = op->x, y = op->y;
1955
1956	MoveType
1957	move_on,
1958	move_slow,
1959	move_block;
1960
1961	if (QUERY_FLAG (op, FLAG_NO_APPLY))	1775	if (QUERY_FLAG (op, FLAG_NO_APPLY))
1962	return 0;	1776	return 0;
1963		1777
1964	tag = op->count;	1778	object *tmp;
		1779	maptile *m = op->map;
		1780	int x = op->x, y = op->y;
1965		1781
1966	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);	1782	mapspace &ms = m->at (x, y);
1967	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);	1783
1968	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);	1784	ms.update ();
		1785
		1786	MoveType move_on = ms.move_on;
		1787	MoveType move_slow = ms.move_slow;
		1788	MoveType move_block = ms.move_block;
1969		1789
1970	/* if nothing on this space will slow op down or be applied,	1790	/* if nothing on this space will slow op down or be applied,
1971	* no need to do checking below. have to make sure move_type	1791	* no need to do checking below. have to make sure move_type
1972	* is set, as lots of objects don't have it set - we treat that	1792	* is set, as lots of objects don't have it set - we treat that
1973	* as walking.	1793	* as walking.
…		…
1984	return 0;	1804	return 0;
1985		1805
1986	/* The objects have to be checked from top to bottom.	1806	/* The objects have to be checked from top to bottom.
1987	* Hence, we first go to the top:	1807	* Hence, we first go to the top:
1988	*/	1808	*/
1989		1809	for (object *next, *tmp = ms.top; tmp; tmp = next)
1990	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL && tmp->above != NULL; tmp = tmp->above)
1991	{
1992	/* Trim the search when we find the first other spell effect
1993	* this helps performance so that if a space has 50 spell objects,
1994	* we don't need to check all of them.
1995	*/
1996	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG (tmp, FLAG_NO_PICK))
1997	break;
1998	}	1810	{
		1811	next = tmp->below;
1999		1812
2000	for (; tmp; tmp = tmp->below)
2001	{
2002	if (tmp == op)	1813	if (tmp == op)
2003	continue; /* Can't apply yourself */	1814	continue; /* Can't apply yourself */
2004		1815
2005	/* Check to see if one of the movement types should be slowed down.	1816	/* Check to see if one of the movement types should be slowed down.
2006	* Second check makes sure that the movement types not being slowed	1817	* Second check makes sure that the movement types not being slowed
…		…
2011	if (!QUERY_FLAG (op, FLAG_WIZPASS))	1822	if (!QUERY_FLAG (op, FLAG_WIZPASS))
2012	{	1823	{
2013	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||	1824	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||
2014	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))	1825	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))
2015	{	1826	{
2016
2017	float
2018	diff = tmp->move_slow_penalty * FABS (op->speed);	1827	float diff = tmp->move_slow_penalty * fabs (op->speed);
2019		1828
2020	if (op->type == PLAYER)	1829	if (op->is_player ())
2021	if ((QUERY_FLAG (tmp, FLAG_IS_HILLY) && find_skill_by_number (op, SK_CLIMBING)) ||	1830	if ((tmp->flag [FLAG_IS_HILLY ] && find_skill_by_number (op, SK_CLIMBING)) ||
2022	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))	1831	(tmp->flag [FLAG_IS_WOODED] && find_skill_by_number (op, SK_WOODSMAN)))
2023	diff /= 4.0;	1832	diff /= 4.0;
2024		1833
2025	op->speed_left -= diff;	1834	op->speed_left -= diff;
2026	}	1835	}
2027	}	1836	}
…		…
2030	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||	1839	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||
2031	((op->move_type & tmp->move_on) && (op->move_type & ~tmp->move_on & ~tmp->move_block) == 0))	1840	((op->move_type & tmp->move_on) && (op->move_type & ~tmp->move_on & ~tmp->move_block) == 0))
2032	{	1841	{
2033	move_apply (tmp, op, originator);	1842	move_apply (tmp, op, originator);
2034		1843
2035	if (was_destroyed (op, tag))	1844	if (op->destroyed ())
2036	return 1;	1845	return 1;
2037		1846
2038	/* what the person/creature stepped onto has moved the object	1847	/* what the person/creature stepped onto has moved the object
2039	* someplace new. Don't process any further - if we did,	1848	* someplace new. Don't process any further - if we did,
2040	* have a feeling strange problems would result.	1849	* have a feeling strange problems would result.
…		…
2050	/*	1859	/*
2051	* present_arch(arch, map, x, y) searches for any objects with	1860	* present_arch(arch, map, x, y) searches for any objects with
2052	* a matching archetype at the given map and coordinates.	1861	* a matching archetype at the given map and coordinates.
2053	* The first matching object is returned, or NULL if none.	1862	* The first matching object is returned, or NULL if none.
2054	*/	1863	*/
2055
2056	object *	1864	object *
2057	present_arch (const archetype *at, mapstruct *m, int x, int y)	1865	present_arch (const archetype *at, maptile *m, int x, int y)
2058	{	1866	{
2059	object *
2060	tmp;
2061
2062	if (m == NULL || out_of_map (m, x, y))	1867	if (!m || out_of_map (m, x, y))
2063	{	1868	{
2064	LOG (llevError, "Present_arch called outside map.\n");	1869	LOG (llevError, "Present_arch called outside map.\n");
2065	return NULL;	1870	return NULL;
2066	}	1871	}
2067	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)	1872
2068	if (tmp->arch == at)	1873	for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)
		1874	if (tmp->arch->archname == at->archname)
2069	return tmp;	1875	return tmp;
		1876
2070	return NULL;	1877	return NULL;
2071	}	1878	}
2072		1879
2073	/*	1880	/*
2074	* present(type, map, x, y) searches for any objects with	1881	* present(type, map, x, y) searches for any objects with
2075	* a matching type variable at the given map and coordinates.	1882	* a matching type variable at the given map and coordinates.
2076	* The first matching object is returned, or NULL if none.	1883	* The first matching object is returned, or NULL if none.
2077	*/	1884	*/
2078
2079	object *	1885	object *
2080	present (unsigned char type, mapstruct *m, int x, int y)	1886	present (unsigned char type, maptile *m, int x, int y)
2081	{	1887	{
2082	object *
2083	tmp;
2084
2085	if (out_of_map (m, x, y))	1888	if (out_of_map (m, x, y))
2086	{	1889	{
2087	LOG (llevError, "Present called outside map.\n");	1890	LOG (llevError, "Present called outside map.\n");
2088	return NULL;	1891	return NULL;
2089	}	1892	}
2090	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)	1893
		1894	for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)
2091	if (tmp->type == type)	1895	if (tmp->type == type)
2092	return tmp;	1896	return tmp;
		1897
2093	return NULL;	1898	return NULL;
2094	}	1899	}
2095		1900
2096	/*	1901	/*
2097	* present_in_ob(type, object) searches for any objects with	1902	* present_in_ob(type, object) searches for any objects with
2098	* a matching type variable in the inventory of the given object.	1903	* a matching type variable in the inventory of the given object.
2099	* The first matching object is returned, or NULL if none.	1904	* The first matching object is returned, or NULL if none.
2100	*/	1905	*/
2101
2102	object *	1906	object *
2103	present_in_ob (unsigned char type, const object *op)	1907	present_in_ob (unsigned char type, const object *op)
2104	{	1908	{
2105	object *
2106	tmp;
2107
2108	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1909	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
2109	if (tmp->type == type)	1910	if (tmp->type == type)
2110	return tmp;	1911	return tmp;
		1912
2111	return NULL;	1913	return NULL;
2112	}	1914	}
2113		1915
2114	/*	1916	/*
2115	* present_in_ob (type, str, object) searches for any objects with	1917	* present_in_ob (type, str, object) searches for any objects with
…		…
2123	* str is the string to match against. Note that we match against	1925	* str is the string to match against. Note that we match against
2124	* the object name, not the archetype name. this is so that the	1926	* the object name, not the archetype name. this is so that the
2125	* spell code can use one object type (force), but change it's name	1927	* spell code can use one object type (force), but change it's name
2126	* to be unique.	1928	* to be unique.
2127	*/	1929	*/
2128
2129	object *	1930	object *
2130	present_in_ob_by_name (int type, const char *str, const object *op)	1931	present_in_ob_by_name (int type, const char *str, const object *op)
2131	{	1932	{
2132	object *
2133	tmp;
2134
2135	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1933	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2136	{
2137	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))	1934	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))
2138	return tmp;	1935	return tmp;
2139	}	1936
2140	return NULL;	1937	return 0;
2141	}	1938	}
2142		1939
2143	/*	1940	/*
2144	* present_arch_in_ob(archetype, object) searches for any objects with	1941	* present_arch_in_ob(archetype, object) searches for any objects with
2145	* a matching archetype in the inventory of the given object.	1942	* a matching archetype in the inventory of the given object.
2146	* The first matching object is returned, or NULL if none.	1943	* The first matching object is returned, or NULL if none.
2147	*/	1944	*/
2148
2149	object *	1945	object *
2150	present_arch_in_ob (const archetype *at, const object *op)	1946	present_arch_in_ob (const archetype *at, const object *op)
2151	{	1947	{
2152	object *
2153	tmp;
2154
2155	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1948	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2156	if (tmp->arch == at)	1949	if (tmp->arch->archname == at->archname)
2157	return tmp;	1950	return tmp;
		1951
2158	return NULL;	1952	return NULL;
2159	}	1953	}
2160		1954
2161	/*	1955	/*
2162	* activate recursively a flag on an object inventory	1956	* activate recursively a flag on an object inventory
2163	*/	1957	*/
2164	void	1958	void
2165	flag_inv (object *op, int flag)	1959	flag_inv (object *op, int flag)
2166	{	1960	{
2167	object *
2168	tmp;
2169
2170	if (op->inv)
2171	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1961	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2172	{	1962	{
2173	SET_FLAG (tmp, flag);	1963	SET_FLAG (tmp, flag);
2174	flag_inv (tmp, flag);	1964	flag_inv (tmp, flag);
2175	}	1965	}
2176	} /*	1966	}
		1967
		1968	/*
2177	* desactivate recursively a flag on an object inventory	1969	* deactivate recursively a flag on an object inventory
2178	*/	1970	*/
2179	void	1971	void
2180	unflag_inv (object *op, int flag)	1972	unflag_inv (object *op, int flag)
2181	{	1973	{
2182	object *
2183	tmp;
2184
2185	if (op->inv)
2186	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1974	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2187	{	1975	{
2188	CLEAR_FLAG (tmp, flag);	1976	CLEAR_FLAG (tmp, flag);
2189	unflag_inv (tmp, flag);	1977	unflag_inv (tmp, flag);
2190	}	1978	}
2191	}
2192
2193	/*
2194	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in
2195	* all it's inventory (recursively).
2196	* If checksums are used, a player will get set_cheat called for
2197	* him/her-self and all object carried by a call to this function.
2198	*/
2199
2200	void
2201	set_cheat (object *op)
2202	{
2203	SET_FLAG (op, FLAG_WAS_WIZ);
2204	flag_inv (op, FLAG_WAS_WIZ);
2205	}	1979	}
2206		1980
2207	/*	1981	/*
2208	* find_free_spot(object, map, x, y, start, stop) will search for	1982	* find_free_spot(object, map, x, y, start, stop) will search for
2209	* a spot at the given map and coordinates which will be able to contain	1983	* a spot at the given map and coordinates which will be able to contain
…		…
2211	* to search (see the freearr_x/y[] definition).	1985	* to search (see the freearr_x/y[] definition).
2212	* It returns a random choice among the alternatives found.	1986	* It returns a random choice among the alternatives found.
2213	* start and stop are where to start relative to the free_arr array (1,9	1987	* start and stop are where to start relative to the free_arr array (1,9
2214	* does all 4 immediate directions). This returns the index into the	1988	* does all 4 immediate directions). This returns the index into the
2215	* array of the free spot, -1 if no spot available (dir 0 = x,y)	1989	* array of the free spot, -1 if no spot available (dir 0 = x,y)
2216	* Note - this only checks to see if there is space for the head of the
2217	* object - if it is a multispace object, this should be called for all
2218	* pieces.
2219	* Note2: This function does correctly handle tiled maps, but does not	1990	* Note: This function does correctly handle tiled maps, but does not
2220	* inform the caller. However, insert_ob_in_map will update as	1991	* inform the caller. However, insert_ob_in_map will update as
2221	* necessary, so the caller shouldn't need to do any special work.	1992	* necessary, so the caller shouldn't need to do any special work.
2222	* Note - updated to take an object instead of archetype - this is necessary	1993	* Note - updated to take an object instead of archetype - this is necessary
2223	* because arch_blocked (now ob_blocked) needs to know the movement type	1994	* because arch_blocked (now ob_blocked) needs to know the movement type
2224	* to know if the space in question will block the object. We can't use	1995	* to know if the space in question will block the object. We can't use
2225	* the archetype because that isn't correct if the monster has been	1996	* the archetype because that isn't correct if the monster has been
2226	* customized, changed states, etc.	1997	* customized, changed states, etc.
2227	*/	1998	*/
2228
2229	int	1999	int
2230	find_free_spot (const object *ob, mapstruct *m, int x, int y, int start, int stop)	2000	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)
2231	{	2001	{
2232	int
2233	i,
2234	index = 0, flag;
2235	static int
2236	altern[SIZEOFFREE];	2002	int altern[SIZEOFFREE];
		2003	int index = 0, flag;
2237		2004
2238	for (i = start; i < stop; i++)	2005	for (int i = start; i < stop; i++)
2239	{	2006	{
2240	flag = ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]);	2007	mapxy pos (m, x, y); pos.move (i);
2241	if (!flag)	2008
		2009	if (!pos.normalise ())
		2010	continue;
		2011
		2012	mapspace &ms = *pos;
		2013
		2014	if (ms.flags () & P_IS_ALIVE)
		2015	continue;
		2016
		2017	/* However, often
		2018	* ob doesn't have any move type (when used to place exits)
		2019	* so the AND operation in OB_TYPE_MOVE_BLOCK doesn't work.
		2020	*/
		2021	if (ob && ob->move_type == 0 && ms.move_block != MOVE_ALL)
		2022	{
2242	altern[index++] = i;	2023	altern [index++] = i;
		2024	continue;
		2025	}
2243		2026
2244	/* Basically, if we find a wall on a space, we cut down the search size.	2027	/* Basically, if we find a wall on a space, we cut down the search size.
2245	* In this way, we won't return spaces that are on another side of a wall.	2028	* In this way, we won't return spaces that are on another side of a wall.
2246	* This mostly work, but it cuts down the search size in all directions -	2029	* This mostly work, but it cuts down the search size in all directions -
2247	* if the space being examined only has a wall to the north and empty	2030	* if the space being examined only has a wall to the north and empty
2248	* spaces in all the other directions, this will reduce the search space	2031	* spaces in all the other directions, this will reduce the search space
2249	* to only the spaces immediately surrounding the target area, and	2032	* to only the spaces immediately surrounding the target area, and
2250	* won't look 2 spaces south of the target space.	2033	* won't look 2 spaces south of the target space.
2251	*/	2034	*/
2252	else if ((flag & AB_NO_PASS) && maxfree[i] < stop)	2035	if (ms.move_block == MOVE_ALL && maxfree[i] < stop)
		2036	{
2253	stop = maxfree[i];	2037	stop = maxfree[i];
		2038	continue;
		2039	}
		2040
		2041	/* Note it is intentional that we check ob - the movement type of the
		2042	* head of the object should correspond for the entire object.
		2043	*/
		2044	if (OB_TYPE_MOVE_BLOCK (ob, ms.move_block))
		2045	continue;
		2046
		2047	if (ob->blocked (pos.m, pos.x, pos.y))
		2048	continue;
		2049
		2050	altern [index++] = i;
2254	}	2051	}
		2052
2255	if (!index)	2053	if (!index)
2256	return -1;	2054	return -1;
		2055
2257	return altern[RANDOM () % index];	2056	return altern [rndm (index)];
2258	}	2057	}
2259		2058
2260	/*	2059	/*
2261	* find_first_free_spot(archetype, mapstruct, x, y) works like	2060	* find_first_free_spot(archetype, maptile, x, y) works like
2262	* find_free_spot(), but it will search max number of squares.	2061	* find_free_spot(), but it will search max number of squares.
2263	* But it will return the first available spot, not a random choice.	2062	* But it will return the first available spot, not a random choice.
2264	* Changed 0.93.2: Have it return -1 if there is no free spot available.	2063	* Changed 0.93.2: Have it return -1 if there is no free spot available.
2265	*/	2064	*/
2266
2267	int	2065	int
2268	find_first_free_spot (const object *ob, mapstruct *m, int x, int y)	2066	find_first_free_spot (const object *ob, maptile *m, int x, int y)
2269	{	2067	{
2270	int
2271	i;
2272
2273	for (i = 0; i < SIZEOFFREE; i++)	2068	for (int i = 0; i < SIZEOFFREE; i++)
2274	{
2275	if (!ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]))	2069	if (!ob->blocked (m, x + freearr_x[i], y + freearr_y[i]))
2276	return i;	2070	return i;
2277	}	2071
2278	return -1;	2072	return -1;
2279	}	2073	}
2280		2074
2281	/*	2075	/*
2282	* The function permute(arr, begin, end) randomly reorders the array	2076	* The function permute(arr, begin, end) randomly reorders the array
2283	* arr[begin..end-1].	2077	* arr[begin..end-1].
		2078	* now uses a fisher-yates shuffle, old permute was broken
2284	*/	2079	*/
2285	static void	2080	static void
2286	permute (int *arr, int begin, int end)	2081	permute (int *arr, int begin, int end)
2287	{	2082	{
2288	int	2083	arr += begin;
2289	i,
2290	j,
2291	tmp,
2292	len;
2293
2294	len = end - begin;	2084	end -= begin;
2295	for (i = begin; i < end; i++)
2296	{
2297	j = begin + RANDOM () % len;
2298		2085
2299	tmp = arr[i];	2086	while (--end)
2300	arr[i] = arr[j];	2087	swap (arr [end], arr [rndm (end + 1)]);
2301	arr[j] = tmp;
2302	}
2303	}	2088	}
2304		2089
2305	/* new function to make monster searching more efficient, and effective!	2090	/* new function to make monster searching more efficient, and effective!
2306	* This basically returns a randomized array (in the passed pointer) of	2091	* This basically returns a randomized array (in the passed pointer) of
2307	* the spaces to find monsters. In this way, it won't always look for	2092	* the spaces to find monsters. In this way, it won't always look for
…		…
2310	* the 3x3 area will be searched, just not in a predictable order.	2095	* the 3x3 area will be searched, just not in a predictable order.
2311	*/	2096	*/
2312	void	2097	void
2313	get_search_arr (int *search_arr)	2098	get_search_arr (int *search_arr)
2314	{	2099	{
2315	int	2100	int i;
2316	i;
2317		2101
2318	for (i = 0; i < SIZEOFFREE; i++)	2102	for (i = 0; i < SIZEOFFREE; i++)
2319	{
2320	search_arr[i] = i;	2103	search_arr[i] = i;
2321	}
2322		2104
2323	permute (search_arr, 1, SIZEOFFREE1 + 1);	2105	permute (search_arr, 1, SIZEOFFREE1 + 1);
2324	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);	2106	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);
2325	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);	2107	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);
2326	}	2108	}
…		…
2335	* Perhaps incorrectly, but I'm making the assumption that exclude	2117	* Perhaps incorrectly, but I'm making the assumption that exclude
2336	* is actually want is going to try and move there. We need this info	2118	* is actually want is going to try and move there. We need this info
2337	* because we have to know what movement the thing looking to move	2119	* because we have to know what movement the thing looking to move
2338	* there is capable of.	2120	* there is capable of.
2339	*/	2121	*/
2340
2341	int	2122	int
2342	find_dir (mapstruct *m, int x, int y, object *exclude)	2123	find_dir (maptile *m, int x, int y, object *exclude)
2343	{	2124	{
2344	int
2345	i,
2346	max = SIZEOFFREE, mflags;	2125	int max = SIZEOFFREE, mflags;
2347
2348	sint16 nx, ny;
2349	object *
2350	tmp;
2351	mapstruct *
2352	mp;
2353
2354	MoveType blocked, move_type;	2126	MoveType move_type;
2355		2127
2356	if (exclude && exclude->head)	2128	if (exclude && exclude->head_ () != exclude)
2357	{	2129	{
2358	exclude = exclude->head;	2130	exclude = exclude->head;
2359	move_type = exclude->move_type;	2131	move_type = exclude->move_type;
2360	}	2132	}
2361	else	2133	else
2362	{	2134	{
2363	/* If we don't have anything, presume it can use all movement types. */	2135	/* If we don't have anything, presume it can use all movement types. */
2364	move_type = MOVE_ALL;	2136	move_type = MOVE_ALL;
2365	}	2137	}
2366		2138
2367	for (i = 1; i < max; i++)	2139	for (int i = 1; i < max; i++)
2368	{	2140	{
2369	mp = m;	2141	mapxy pos (m, x, y);
2370	nx = x + freearr_x[i];	2142	pos.move (i);
2371	ny = y + freearr_y[i];
2372		2143
2373	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);	2144	if (!pos.normalise ())
2374	if (mflags & P_OUT_OF_MAP)
2375	{
2376	max = maxfree[i];	2145	max = maxfree[i];
2377	}
2378	else	2146	else
2379	{	2147	{
2380	blocked = GET_MAP_MOVE_BLOCK (mp, nx, ny);	2148	mapspace &ms = *pos;
2381		2149
2382	if ((move_type & blocked) == move_type)	2150	if ((move_type & ms.move_block) == move_type)
		2151	max = maxfree [i];
		2152	else if (ms.flags () & P_IS_ALIVE)
2383	{	2153	{
2384	max = maxfree[i];	2154	for (object *tmp = ms.bot; tmp; tmp = tmp->above)
2385	}	2155	if ((tmp->flag [FLAG_MONSTER] || tmp->is_player ())
2386	else if (mflags & P_IS_ALIVE)	2156	&& (tmp != exclude || (tmp->head_ () != tmp && tmp->head_ () != exclude)))
2387	{
2388	for (tmp = GET_MAP_OB (mp, nx, ny); tmp != NULL; tmp = tmp->above)
2389	{
2390	if ((QUERY_FLAG (tmp, FLAG_MONSTER) || tmp->type == PLAYER) && (tmp != exclude || (tmp->head && tmp->head != exclude)))
2391	{
2392	break;
2393	}
2394	}
2395	if (tmp)
2396	{
2397	return freedir[i];	2157	return freedir [i];
2398	}
2399	}	2158	}
2400	}	2159	}
2401	}	2160	}
		2161
2402	return 0;	2162	return 0;
2403	}	2163	}
2404		2164
2405	/*	2165	/*
2406	* distance(object 1, object 2) will return the square of the	2166	* distance(object 1, object 2) will return the square of the
2407	* distance between the two given objects.	2167	* distance between the two given objects.
2408	*/	2168	*/
2409
2410	int	2169	int
2411	distance (const object *ob1, const object *ob2)	2170	distance (const object *ob1, const object *ob2)
2412	{	2171	{
2413	int
2414	i;
2415
2416	i = (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);	2172	return (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);
2417	return i;
2418	}	2173	}
2419		2174
2420	/*	2175	/*
2421	* find_dir_2(delta-x,delta-y) will return a direction in which	2176	* find_dir_2(delta-x,delta-y) will return a direction in which
2422	* an object which has subtracted the x and y coordinates of another	2177	* an object which has subtracted the x and y coordinates of another
2423	* object, needs to travel toward it.	2178	* object, needs to travel toward it.
2424	*/	2179	*/
2425
2426	int	2180	int
2427	find_dir_2 (int x, int y)	2181	find_dir_2 (int x, int y)
2428	{	2182	{
2429	int	2183	int q;
2430	q;
2431		2184
2432	if (y)	2185	if (y)
2433	q = x * 100 / y;	2186	q = x * 100 / y;
2434	else if (x)	2187	else if (x)
2435	q = -300 * x;	2188	q = -300 * x;
…		…
2460		2213
2461	return 3;	2214	return 3;
2462	}	2215	}
2463		2216
2464	/*	2217	/*
2465	* absdir(int): Returns a number between 1 and 8, which represent
2466	* the "absolute" direction of a number (it actually takes care of
2467	* "overflow" in previous calculations of a direction).
2468	*/
2469
2470	int
2471	absdir (int d)
2472	{
2473	while (d < 1)
2474	d += 8;
2475	while (d > 8)
2476	d -= 8;
2477	return d;
2478	}
2479
2480	/*
2481	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is	2218	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is
2482	* between two directions (which are expected to be absolute (see absdir())	2219	* between two directions (which are expected to be absolute (see absdir())
2483	*/	2220	*/
2484
2485	int	2221	int
2486	dirdiff (int dir1, int dir2)	2222	dirdiff (int dir1, int dir2)
2487	{	2223	{
2488	int	2224	int d;
2489	d;
2490		2225
2491	d = abs (dir1 - dir2);	2226	d = abs (dir1 - dir2);
2492	if (d > 4)	2227	if (d > 4)
2493	d = 8 - d;	2228	d = 8 - d;
		2229
2494	return d;	2230	return d;
2495	}	2231	}
2496		2232
2497	/* peterm:	2233	/* peterm:
2498	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.	2234	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.
…		…
2501	* This basically means that if direction is 15, then it could either go	2237	* This basically means that if direction is 15, then it could either go
2502	* direction 4, 14, or 16 to get back to where we are.	2238	* direction 4, 14, or 16 to get back to where we are.
2503	* Moved from spell_util.c to object.c with the other related direction	2239	* Moved from spell_util.c to object.c with the other related direction
2504	* functions.	2240	* functions.
2505	*/	2241	*/
2506
2507	int
2508	reduction_dir[SIZEOFFREE][3] = {	2242	static const int reduction_dir[SIZEOFFREE][3] = {
2509	{0, 0, 0}, /* 0 */	2243	{0, 0, 0}, /* 0 */
2510	{0, 0, 0}, /* 1 */	2244	{0, 0, 0}, /* 1 */
2511	{0, 0, 0}, /* 2 */	2245	{0, 0, 0}, /* 2 */
2512	{0, 0, 0}, /* 3 */	2246	{0, 0, 0}, /* 3 */
2513	{0, 0, 0}, /* 4 */	2247	{0, 0, 0}, /* 4 */
…		…
2561	* find a path to that monster that we found. If not,	2295	* find a path to that monster that we found. If not,
2562	* we don't bother going toward it. Returns 1 if we	2296	* we don't bother going toward it. Returns 1 if we
2563	* can see a direct way to get it	2297	* can see a direct way to get it
2564	* Modified to be map tile aware -.MSW	2298	* Modified to be map tile aware -.MSW
2565	*/	2299	*/
2566
2567
2568	int	2300	int
2569	can_see_monsterP (mapstruct *m, int x, int y, int dir)	2301	can_see_monsterP (maptile *m, int x, int y, int dir)
2570	{	2302	{
2571	sint16 dx, dy;	2303	sint16 dx, dy;
2572	int
2573	mflags;	2304	int mflags;
2574		2305
2575	if (dir < 0)	2306	if (dir < 0)
2576	return 0; /* exit condition: invalid direction */	2307	return 0; /* exit condition: invalid direction */
2577		2308
2578	dx = x + freearr_x[dir];	2309	dx = x + freearr_x[dir];
…		…
2591	return 0;	2322	return 0;
2592		2323
2593	/* yes, can see. */	2324	/* yes, can see. */
2594	if (dir < 9)	2325	if (dir < 9)
2595	return 1;	2326	return 1;
		2327
2596	return can_see_monsterP (m, x, y, reduction_dir[dir][0]) |	2328	return can_see_monsterP (m, x, y, reduction_dir[dir][0])
2597	can_see_monsterP (m, x, y, reduction_dir[dir][1]) | can_see_monsterP (m, x, y, reduction_dir[dir][2]);	2329	| can_see_monsterP (m, x, y, reduction_dir[dir][1])
		2330	| can_see_monsterP (m, x, y, reduction_dir[dir][2]);
2598	}	2331	}
2599
2600
2601		2332
2602	/*	2333	/*
2603	* can_pick(picker, item): finds out if an object is possible to be	2334	* can_pick(picker, item): finds out if an object is possible to be
2604	* picked up by the picker. Returnes 1 if it can be	2335	* picked up by the picker. Returnes 1 if it can be
2605	* picked up, otherwise 0.	2336	* picked up, otherwise 0.
…		…
2607	* Cf 0.91.3 - don't let WIZ's pick up anything - will likely cause	2338	* Cf 0.91.3 - don't let WIZ's pick up anything - will likely cause
2608	* core dumps if they do.	2339	* core dumps if they do.
2609	*	2340	*
2610	* Add a check so we can't pick up invisible objects (0.93.8)	2341	* Add a check so we can't pick up invisible objects (0.93.8)
2611	*/	2342	*/
2612
2613	int	2343	int
2614	can_pick (const object *who, const object *item)	2344	can_pick (const object *who, const object *item)
2615	{	2345	{
2616	return /*QUERY_FLAG(who,FLAG_WIZ)|| */	2346	return /*QUERY_FLAG(who,FLAG_WIZ)|| */
2617	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&	2347	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&
2618	!QUERY_FLAG (item, FLAG_ALIVE) && !item->invisible && (who->type == PLAYER || item->weight < who->weight / 3));	2348	!QUERY_FLAG (item, FLAG_ALIVE) && !item->invisible && (who->is_player () || item->weight < who->weight / 3));
2619	}	2349	}
2620
2621		2350
2622	/*	2351	/*
2623	* create clone from object to another	2352	* create clone from object to another
2624	*/	2353	*/
2625	object *	2354	object *
2626	object_create_clone (object *asrc)	2355	object::deep_clone ()
2627	{	2356	{
2628	object *	2357	assert (("deep_clone called on non-head object", is_head ()));
2629	dst = NULL, *tmp, *src, *part, *prev, *item;
2630		2358
2631	if (!asrc)	2359	object *dst = clone ();
2632	return NULL;
2633	src = asrc;
2634	if (src->head)
2635	src = src->head;
2636		2360
2637	prev = NULL;	2361	object *prev = dst;
2638	for (part = src; part; part = part->more)	2362	for (object *part = this->more; part; part = part->more)
2639	{	2363	{
2640	tmp = get_object ();	2364	object *tmp = part->clone ();
2641	copy_object (part, tmp);
2642	tmp->x -= src->x;
2643	tmp->y -= src->y;
2644	if (!part->head)
2645	{
2646	dst = tmp;
2647	tmp->head = NULL;
2648	}
2649	else
2650	{
2651	tmp->head = dst;	2365	tmp->head = dst;
2652	}
2653	tmp->more = NULL;
2654	if (prev)
2655	prev->more = tmp;	2366	prev->more = tmp;
2656	prev = tmp;	2367	prev = tmp;
2657	}	2368	}
2658		2369
2659	/*** copy inventory ***/
2660	for (item = src->inv; item; item = item->below)	2370	for (object *item = inv; item; item = item->below)
2661	{	2371	insert_ob_in_ob (item->deep_clone (), dst);
2662	(void) insert_ob_in_ob (object_create_clone (item), dst);
2663	}
2664		2372
2665	return dst;	2373	return dst;
2666	}
2667
2668	/* return true if the object was destroyed, 0 otherwise */
2669	int
2670	was_destroyed (const object *op, tag_t old_tag)
2671	{
2672	/* checking for FLAG_FREED isn't necessary, but makes this function more
2673	* robust */
2674	return op->count != old_tag || QUERY_FLAG (op, FLAG_FREED);
2675	}
2676
2677	/* GROS - Creates an object using a string representing its content. */
2678
2679	/* Basically, we save the content of the string to a temp file, then call */
2680
2681	/* load_object on it. I admit it is a highly inefficient way to make things, */
2682
2683	/* but it was simple to make and allows reusing the load_object function. */
2684
2685	/* Remember not to use load_object_str in a time-critical situation. */
2686
2687	/* Also remember that multiparts objects are not supported for now. */
2688
2689	object *
2690	load_object_str (const char *obstr)
2691	{
2692	object *
2693	op;
2694	char
2695	filename[MAX_BUF];
2696
2697	sprintf (filename, "%s/cfloadobstr2044", settings.tmpdir);
2698
2699	FILE *
2700	tempfile = fopen (filename, "w");
2701
2702	if (tempfile == NULL)
2703	{
2704	LOG (llevError, "Error - Unable to access load object temp file\n");
2705	return NULL;
2706	}
2707
2708	fprintf (tempfile, obstr);
2709	fclose (tempfile);
2710
2711	op = get_object ();
2712
2713	object_thawer thawer (filename);
2714
2715	if (thawer)
2716	load_object (thawer, op, 0);
2717
2718	LOG (llevDebug, " load str completed, object=%s\n", &op->name);
2719	CLEAR_FLAG (op, FLAG_REMOVED);
2720
2721	return op;
2722	}	2374	}
2723		2375
2724	/* This returns the first object in who's inventory that	2376	/* This returns the first object in who's inventory that
2725	* has the same type and subtype match.	2377	* has the same type and subtype match.
2726	* returns NULL if no match.	2378	* returns NULL if no match.
2727	*/	2379	*/
2728	object *	2380	object *
2729	find_obj_by_type_subtype (const object *who, int type, int subtype)	2381	find_obj_by_type_subtype (const object *who, int type, int subtype)
2730	{	2382	{
2731	object *
2732	tmp;
2733
2734	for (tmp = who->inv; tmp; tmp = tmp->below)	2383	for (object *tmp = who->inv; tmp; tmp = tmp->below)
2735	if (tmp->type == type && tmp->subtype == subtype)	2384	if (tmp->type == type && tmp->subtype == subtype)
2736	return tmp;	2385	return tmp;
2737		2386
2738	return NULL;
2739	}
2740
2741	/* If ob has a field named key, return the link from the list,
2742	* otherwise return NULL.
2743	*
2744	* key must be a passed in shared string - otherwise, this won't
2745	* do the desired thing.
2746	*/
2747	key_value *
2748	get_ob_key_link (const object *ob, const char *key)
2749	{
2750	key_value *
2751	link;
2752
2753	for (link = ob->key_values; link != NULL; link = link->next)
2754	{
2755	if (link->key == key)
2756	{
2757	return link;
2758	}
2759	}
2760
2761	return NULL;
2762	}
2763
2764	/*
2765	* Returns the value of op has an extra_field for key, or NULL.
2766	*
2767	* The argument doesn't need to be a shared string.
2768	*
2769	* The returned string is shared.
2770	*/
2771	const char *
2772	get_ob_key_value (const object *op, const char *const key)
2773	{
2774	key_value *link;
2775	shstr_cmp canonical_key (key);
2776
2777	if (!canonical_key)
2778	{
2779	/* 1. There being a field named key on any object
2780	* implies there'd be a shared string to find.
2781	* 2. Since there isn't, no object has this field.
2782	* 3. Therefore, *this* object doesn't have this field.
2783	*/
2784	return 0;
2785	}
2786
2787	/* This is copied from get_ob_key_link() above -
2788	* only 4 lines, and saves the function call overhead.
2789	*/
2790	for (link = op->key_values; link; link = link->next)
2791	if (link->key == canonical_key)
2792	return link->value;
2793
2794	return 0;	2387	return 0;
2795	}	2388	}
2796		2389
2797		2390	shstr_tmp
2798	/*	2391	object::kv_get (shstr_tmp key) const
2799	* Updates the canonical_key in op to value.
2800	*
2801	* canonical_key is a shared string (value doesn't have to be).
2802	*
2803	* Unless add_key is TRUE, it won't add fields, only change the value of existing
2804	* keys.
2805	*
2806	* Returns TRUE on success.
2807	*/
2808	int
2809	set_ob_key_value_s (object *op, const shstr & canonical_key, const char *value, int add_key)
2810	{	2392	{
2811	key_value *	2393	for (key_value *kv = key_values; kv; kv = kv->next)
2812	field = NULL, *last = NULL;	2394	if (kv->key == key)
		2395	return kv->value;
2813		2396
2814	for (field = op->key_values; field != NULL; field = field->next)	2397	return shstr ();
2815	{	2398	}
2816	if (field->key != canonical_key)	2399
		2400	void
		2401	object::kv_set (shstr_tmp key, shstr_tmp value)
		2402	{
		2403	for (key_value *kv = key_values; kv; kv = kv->next)
		2404	if (kv->key == key)
2817	{	2405	{
2818	last = field;	2406	kv->value = value;
2819	continue;	2407	return;
2820	}	2408	}
2821		2409
2822	if (value)	2410	key_value *kv = new key_value;
2823	field->value = value;	2411
2824	else	2412	kv->next = key_values;
		2413	kv->key = key;
		2414	kv->value = value;
		2415
		2416	key_values = kv;
		2417	}
		2418
		2419	void
		2420	object::kv_del (shstr_tmp key)
		2421	{
		2422	for (key_value **kvp = &key_values; *kvp; kvp = &(*kvp)->next)
		2423	if ((*kvp)->key == key)
2825	{	2424	{
2826	/* Basically, if the archetype has this key set,	2425	key_value *kv = *kvp;
2827	* we need to store the null value so when we save	2426	*kvp = (*kvp)->next;
2828	* it, we save the empty value so that when we load,	2427	delete kv;
2829	* we get this value back again.	2428	return;
2830	*/
2831	if (get_ob_key_link (&op->arch->clone, canonical_key))
2832	field->value = 0;
2833	else
2834	{
2835	if (last)
2836	last->next = field->next;
2837	else
2838	op->key_values = field->next;
2839
2840	delete field;
2841	}
2842	}	2429	}
2843	return TRUE;
2844	}
2845	/* IF we get here, key doesn't exist */
2846
2847	/* No field, we'll have to add it. */
2848
2849	if (!add_key)
2850	{
2851	return FALSE;
2852	}
2853	/* There isn't any good reason to store a null
2854	* value in the key/value list. If the archetype has
2855	* this key, then we should also have it, so shouldn't
2856	* be here. If user wants to store empty strings,
2857	* should pass in ""
2858	*/
2859	if (value == NULL)
2860	return TRUE;
2861
2862	field = new key_value;
2863
2864	field->key = canonical_key;
2865	field->value = value;
2866	/* Usual prepend-addition. */
2867	field->next = op->key_values;
2868	op->key_values = field;
2869
2870	return TRUE;
2871	}
2872
2873	/*
2874	* Updates the key in op to value.
2875	*
2876	* If add_key is FALSE, this will only update existing keys,
2877	* and not add new ones.
2878	* In general, should be little reason FALSE is ever passed in for add_key
2879	*
2880	* Returns TRUE on success.
2881	*/
2882	int
2883	set_ob_key_value (object *op, const char *key, const char *value, int add_key)
2884	{
2885	shstr key_ (key);
2886
2887	return set_ob_key_value_s (op, key_, value, add_key);
2888	}	2430	}
2889		2431
2890	object::depth_iterator::depth_iterator (object *container)	2432	object::depth_iterator::depth_iterator (object *container)
2891	: iterator_base (container)	2433	: iterator_base (container)
2892	{	2434	{
…		…
2906	}	2448	}
2907	else	2449	else
2908	item = item->env;	2450	item = item->env;
2909	}	2451	}
2910		2452
		2453	const char *
		2454	object::flag_desc (char *desc, int len) const
		2455	{
		2456	char *p = desc;
		2457	bool first = true;
		2458
		2459	*p = 0;
		2460
		2461	for (int i = 0; i < NUM_FLAGS; i++)
		2462	{
		2463	if (len <= 10) // magic constant!
		2464	{
		2465	snprintf (p, len, ",...");
		2466	break;
		2467	}
		2468
		2469	if (flag [i])
		2470	{
		2471	int cnt = snprintf (p, len, "%s%d", first ? "" : ",", i);
		2472	len -= cnt;
		2473	p += cnt;
		2474	first = false;
		2475	}
		2476	}
		2477
		2478	return desc;
		2479	}
		2480
2911	// return a suitable string describing an objetc in enough detail to find it	2481	// return a suitable string describing an object in enough detail to find it
2912	const char *	2482	const char *
2913	object::debug_desc (char *info) const	2483	object::debug_desc (char *info) const
2914	{	2484	{
		2485	char flagdesc[512];
2915	char info2[256 * 3];	2486	char info2[256 * 4];
2916	char *p = info;	2487	char *p = info;
2917		2488
2918	p += snprintf (p, 256, "%d=\"%s%s%s\"",	2489	p += snprintf (p, 512, "{cnt:%d,uuid:%s,name:\"%s\"%s%s%s,flags:[%s],type:%d}",
2919	count,	2490	count,
		2491	uuid.c_str (),
2920	&name,	2492	&name,
2921	title ? " " : "",	2493	title ? ",title:\"" : "",
2922	title ? (const char *)title : "");	2494	title ? (const char *)title : "",
		2495	title ? "\"" : "",
		2496	flag_desc (flagdesc, 512), type);
2923		2497
2924	if (env)	2498	if (!flag[FLAG_REMOVED] && env)
2925	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));	2499	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));
2926		2500
2927	if (map)	2501	if (map)
2928	p += snprintf (p, 256, "(on %s@%d+%d)", map->path, x, y);	2502	p += snprintf (p, 256, "(on %s@%d+%d)", &map->path, x, y);
2929		2503
2930	return info;	2504	return info;
2931	}	2505	}
2932		2506
2933	const char *	2507	const char *
2934	object::debug_desc () const	2508	object::debug_desc () const
2935	{	2509	{
2936	static char info[256 * 3];	2510	static char info[3][256 * 4];
		2511	static int info_idx;
		2512
2937	return debug_desc (info);	2513	return debug_desc (info [++info_idx % 3]);
2938	}	2514	}
2939		2515
		2516	struct region *
		2517	object::region () const
		2518	{
		2519	return map ? map->region (x, y)
		2520	: region::default_region ();
		2521	}
		2522
		2523	void
		2524	object::open_container (object *new_container)
		2525	{
		2526	if (container == new_container)
		2527	return;
		2528
		2529	object *old_container = container;
		2530
		2531	if (old_container)
		2532	{
		2533	if (INVOKE_OBJECT (CLOSE, old_container, ARG_OBJECT (this)))
		2534	return;
		2535
		2536	#if 0
		2537	// remove the "Close old_container" object.
		2538	if (object *closer = old_container->inv)
		2539	if (closer->type == CLOSE_CON)
		2540	closer->destroy ();
		2541	#endif
		2542
		2543	// make sure the container is available
		2544	esrv_send_item (this, old_container);
		2545
		2546	old_container->flag [FLAG_APPLIED] = false;
		2547	container = 0;
		2548
		2549	// client needs item update to make it work, client bug requires this to be separate
		2550	esrv_update_item (UPD_FLAGS, this, old_container);
		2551
		2552	new_draw_info_format (NDI_UNIQUE, 0, this, "You close %s.", old_container->query_name ());
		2553	play_sound (sound_find ("chest_close"));
		2554	}
		2555
		2556	if (new_container)
		2557	{
		2558	if (INVOKE_OBJECT (OPEN, new_container, ARG_OBJECT (this)))
		2559	return;
		2560
		2561	// TODO: this does not seem to serve any purpose anymore?
		2562	#if 0
		2563	// insert the "Close Container" object.
		2564	if (archetype *closer = new_container->other_arch)
		2565	{
		2566	object *closer = arch_to_object (new_container->other_arch);
		2567	closer->flag [FLAG_NO_MAP_SAVE] = 1;
		2568	new_container->insert (closer);
		2569	}
		2570	#endif
		2571
		2572	new_draw_info_format (NDI_UNIQUE, 0, this, "You open %s.", new_container->query_name ());
		2573
		2574	// make sure the container is available, client bug requires this to be separate
		2575	esrv_send_item (this, new_container);
		2576
		2577	new_container->flag [FLAG_APPLIED] = true;
		2578	container = new_container;
		2579
		2580	// client needs flag change
		2581	esrv_update_item (UPD_FLAGS, this, new_container);
		2582	esrv_send_inventory (this, new_container);
		2583	play_sound (sound_find ("chest_open"));
		2584	}
		2585	// else if (!old_container->env && contr && contr->ns)
		2586	// contr->ns->floorbox_reset ();
		2587	}
		2588
		2589	object *
		2590	object::force_find (shstr_tmp name)
		2591	{
		2592	/* cycle through his inventory to look for the MARK we want to
		2593	* place
		2594	*/
		2595	for (object *tmp = inv; tmp; tmp = tmp->below)
		2596	if (tmp->type == FORCE && tmp->slaying == name)
		2597	return splay (tmp);
		2598
		2599	return 0;
		2600	}
		2601
		2602	//-GPL
		2603
		2604	void
		2605	object::force_set_timer (int duration)
		2606	{
		2607	this->duration = 1;
		2608	this->speed_left = -1.f;
		2609
		2610	this->set_speed (duration ? 1.f / duration : 0.f);
		2611	}
		2612
		2613	object *
		2614	object::force_add (shstr_tmp name, int duration)
		2615	{
		2616	if (object *force = force_find (name))
		2617	force->destroy ();
		2618
		2619	object *force = get_archetype (FORCE_NAME);
		2620
		2621	force->slaying = name;
		2622	force->force_set_timer (duration);
		2623	force->flag [FLAG_APPLIED] = true;
		2624
		2625	return insert (force);
		2626	}
		2627
		2628	void
		2629	object::play_sound (faceidx sound) const
		2630	{
		2631	if (!sound)
		2632	return;
		2633
		2634	if (is_on_map ())
		2635	map->play_sound (sound, x, y);
		2636	else if (object *pl = in_player ())
		2637	pl->contr->play_sound (sound);
		2638	}
		2639
		2640	void
		2641	object::say_msg (const char *msg) const
		2642	{
		2643	if (is_on_map ())
		2644	map->say_msg (msg, x, y);
		2645	else if (object *pl = in_player ())
		2646	pl->contr->play_sound (sound);
		2647	}
		2648
		2649	void
		2650	object::make_noise ()
		2651	{
		2652	// we do not model noise in the map, so instead put
		2653	// a temporary light into the noise source
		2654	// could use the map instead, but that's less reliable for our
		2655	// goal, which is to make invisibility a bit harder to exploit
		2656
		2657	// currently only works sensibly for players
		2658	if (!is_player ())
		2659	return;
		2660
		2661	// find old force, or create new one
		2662	object *force = force_find (shstr_noise_force);
		2663
		2664	if (force)
		2665	force->speed_left = -1.f; // patch old speed up
		2666	else
		2667	{
		2668	force = archetype::get (shstr_noise_force);
		2669
		2670	force->slaying = shstr_noise_force;
		2671	force->stats.food = 1;
		2672	force->speed_left = -1.f;
		2673
		2674	force->set_speed (1.f / 4.f);
		2675	force->flag [FLAG_IS_USED_UP] = true;
		2676	force->flag [FLAG_APPLIED] = true;
		2677
		2678	insert (force);
		2679	}
		2680	}
		2681

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