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Comparing deliantra/server/common/object.C (file contents):
Revision 1.54 by root, Fri Nov 17 19:40:53 2006 UTC vs.
Revision 1.340 by root, Fri Jul 2 19:54:41 2010 UTC

1	/*	1	/*
2	CrossFire, A Multiplayer game for X-windows	2	* This file is part of Deliantra, the Roguelike Realtime MMORPG.
3		3	*
		4	* Copyright (©) 2005,2006,2007,2008,2009,2010 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
4	Copyright (C) 2001 Mark Wedel & Crossfire Development Team	5	* Copyright (©) 2001 Mark Wedel & Crossfire Development Team
5	Copyright (C) 1992 Frank Tore Johansen	6	* Copyright (©) 1992 Frank Tore Johansen
6		7	*
7	This program is free software; you can redistribute it and/or modify	8	* Deliantra is free software: you can redistribute it and/or modify it under
8	it under the terms of the GNU General Public License as published by	9	* the terms of the Affero GNU General Public License as published by the
9	the Free Software Foundation; either version 2 of the License, or	10	* Free Software Foundation, either version 3 of the License, or (at your
10	(at your option) any later version.	11	* option) any later version.
11		12	*
12	This program is distributed in the hope that it will be useful,	13	* This program is distributed in the hope that it will be useful,
13	but WITHOUT ANY WARRANTY; without even the implied warranty of	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15	GNU General Public License for more details.	16	* GNU General Public License for more details.
16		17	*
17	You should have received a copy of the GNU General Public License	18	* You should have received a copy of the Affero GNU General Public License
18	along with this program; if not, write to the Free Software	19	* and the GNU General Public License along with this program. If not, see
19	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.	20	* <http://www.gnu.org/licenses/>.
20		21	*
21	The authors can be reached via e-mail at <crossfire@schmorp.de>	22	* The authors can be reached via e-mail to <support@deliantra.net>
22	*/	23	*/
23		24
24	/* Eneq(@csd.uu.se): Added weight-modifiers in environment of objects.
25	sub/add_weight will transcend the environment updating the carrying
26	variable. */
27	#include <global.h>	25	#include <global.h>
28	#include <stdio.h>	26	#include <stdio.h>
29	#include <sys/types.h>	27	#include <sys/types.h>
30	#include <sys/uio.h>	28	#include <sys/uio.h>
31	#include <object.h>	29	#include <object.h>
32	#include <funcpoint.h>	30	#include <sproto.h>
33	#include <loader.h>
34		31
35	int nrofallocobjects = 0;	32	#include <bitset>
36	static UUID uuid;	33
		34	UUID UUID::cur;
		35	static uint64_t seq_next_save;
37	const uint64 UUID_SKIP = 1<<19;	36	static const uint64 UUID_GAP = 1<<19;
		37	uint32_t mapspace::smellcount = 10000;
38		38
39	object *active_objects; /* List of active objects that need to be processed */	39	objectvec objects;
		40	activevec actives;
40		41
41	short freearr_x[SIZEOFFREE] = { 0, 0, 1, 1, 1, 0, -1, -1, -1, 0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2, -2, -2, -2, -1,	42	freelist_item *object::freelist;
		43	uint32_t object::object_count;
		44	uint32_t object::free_count;
		45	uint32_t object::create_count;
		46	uint32_t object::destroy_count;
		47
		48	//+GPL
		49
		50	short freearr_x[SIZEOFFREE] = {
		51	0,
		52	0, 1, 1, 1, 0, -1, -1, -1,
		53	0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2, -2, -2, -2, -1,
42	0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3, -3, -3, -3, -3, -2, -1	54	0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3, -3, -3, -3, -3, -2, -1
43	};	55	};
44	short freearr_y[SIZEOFFREE] = { 0, -1, -1, 0, 1, 1, 1, 0, -1, -2, -2, -2, -1, 0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2,	56	short freearr_y[SIZEOFFREE] = {
		57	0,
		58	-1, -1, 0, 1, 1, 1, 0, -1,
		59	-2, -2, -2, -1, 0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2,
45	-3, -3, -3, -3, -2, -1, 0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3	60	-3, -3, -3, -3, -2, -1, 0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3
46	};
47	int maxfree[SIZEOFFREE] = { 0, 9, 10, 13, 14, 17, 18, 21, 22, 25, 26, 27, 30, 31, 32, 33, 36, 37, 39, 39, 42, 43, 44, 45,
48	48, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49
49	};	61	};
50	int freedir[SIZEOFFREE] = {	62	int freedir[SIZEOFFREE] = {
51	0, 1, 2, 3, 4, 5, 6, 7, 8, 1, 2, 2, 2, 3, 4, 4, 4, 5, 6, 6, 6, 7, 8, 8, 8,	63	0,
		64	1, 2, 3, 4, 5, 6, 7, 8,
		65	1, 2, 2, 2, 3, 4, 4, 4, 5, 6, 6, 6, 7, 8, 8, 8,
52	1, 2, 2, 2, 2, 2, 3, 4, 4, 4, 4, 4, 5, 6, 6, 6, 6, 6, 7, 8, 8, 8, 8, 8	66	1, 2, 2, 2, 2, 2, 3, 4, 4, 4, 4, 4, 5, 6, 6, 6, 6, 6, 7, 8, 8, 8, 8, 8
53	};	67	};
54		68
		69	static int maxfree[SIZEOFFREE] = {
		70	0,
		71	9, 10, 13, 14, 17, 18, 21, 22,
		72	25, 26, 27, 30, 31, 32, 33, 36, 37, 39, 39, 42, 43, 44, 45, 48,
		73	49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49
		74	};
		75
		76	const char *wall_suffix[16] = {
		77	"0",
		78	"1_3",
		79	"1_4",
		80	"2_1_2",
		81	"1_2",
		82	"2_2_4",
		83	"2_2_1",
		84	"3_1",
		85	"1_1",
		86	"2_2_3",
		87	"2_2_2",
		88	"3_3",
		89	"2_1_1",
		90	"3_4",
		91	"3_2",
		92	"4"
		93	};
		94
55	static void	95	static void
56	write_uuid (void)	96	write_uuid (uval64 skip, bool sync)
57	{	97	{
58	char filename1[MAX_BUF], filename2[MAX_BUF];	98	CALL_BEGIN (2);
59		99	CALL_ARG_SV (newSVval64 (skip));
60	sprintf (filename1, "%s/uuid", settings.localdir);	100	CALL_ARG_SV (boolSV (sync));
61	sprintf (filename2, "%s/uuid~", settings.localdir);	101	CALL_CALL ("cf::write_uuid", G_DISCARD);
62		102	CALL_END;
63	FILE *fp;
64
65	if (!(fp = fopen (filename2, "w")))
66	{
67	LOG (llevError, "ERROR: cannot open %s for writing, unable to write UUID!\n", filename2);
68	return;
69	}
70
71	fprintf (fp, "<1,%llx>\n", (unsigned long long)uuid.seq + UUID_SKIP * 2);
72	fclose (fp);
73	rename (filename2, filename1);
74	}	103	}
75		104
76	static void	105	static void
77	read_uuid (void)	106	read_uuid ()
78	{	107	{
79	char filename[MAX_BUF];	108	char filename[MAX_BUF];
80		109
81	sprintf (filename, "%s/uuid", settings.localdir);	110	sprintf (filename, "%s/uuid", settings.localdir);
		111
		112	seq_next_save = 0;
82		113
83	FILE *fp;	114	FILE *fp;
84		115
85	if (!(fp = fopen (filename, "r")))	116	if (!(fp = fopen (filename, "r")))
86	{	117	{
87	if (errno == ENOENT)	118	if (errno == ENOENT)
88	{	119	{
89	LOG (llevInfo, "RESET uid to 1\n");	120	LOG (llevInfo, "RESET uid to 1\n");
90	uuid.seq = 0;	121	UUID::cur.seq = 0;
91	write_uuid ();	122	write_uuid (UUID_GAP, true);
92	return;	123	return;
93	}	124	}
94		125
95	LOG (llevError, "FATAL: cannot open %s for reading!\n", filename);	126	LOG (llevError, "FATAL: cannot open %s for reading!\n", filename);
96	_exit (1);	127	_exit (1);
97	}	128	}
98		129
99	int version;	130	char buf [UUID::MAX_LEN];
100	unsigned long long uid;	131	buf[0] = 0;
101	if (2 != fscanf (fp, "<%d,%llx>\n", &version, &uid) || version != 1)	132	fgets (buf, sizeof (buf), fp);
		133
		134	if (!UUID::cur.parse (buf))
102	{	135	{
103	LOG (llevError, "FATAL: error reading uid from %s!\n", filename);	136	LOG (llevError, "FATAL: error reading uid from %s (%s)!\n", filename, buf);
104	_exit (1);	137	_exit (1);
105	}	138	}
106		139
107	uuid.seq = uid;
108	write_uuid ();
109	LOG (llevDebug, "read UID: %lld\n", uid);	140	LOG (llevDebug, "read UUID: %s\n", UUID::cur.c_str ());
		141
		142	write_uuid (UUID_GAP, true);
110	fclose (fp);	143	fclose (fp);
111	}	144	}
112		145
113	UUID	146	UUID
114	gen_uuid ()	147	UUID::gen ()
115	{	148	{
116	UUID uid;	149	UUID uid;
117		150
118	uid.seq = ++uuid.seq;	151	uid.seq = ++cur.seq;
119		152
120	if (!(uuid.seq & (UUID_SKIP - 1)))	153	if (expect_false (cur.seq >= seq_next_save))
121	write_uuid ();	154	{
		155	seq_next_save = UUID::cur.seq + (UUID_GAP >> 1);
		156	write_uuid (UUID_GAP, false);
		157	}
		158
122		159
123	return uid;	160	return uid;
124	}	161	}
125		162
126	void	163	void
127	init_uuid ()	164	UUID::init ()
128	{	165	{
129	read_uuid ();	166	read_uuid ();
130	}	167	}
131		168
		169	bool
		170	UUID::parse (const char *s)
		171	{
		172	if (*s++ != '<' || *s++ != '1' || *s++ != '.')
		173	return false;
		174
		175	seq = 0;
		176
		177	while (*s != '>')
		178	{
		179	if (*s < '0')
		180	return false;
		181
		182	// this gives nice branchless code with gcc
		183	assert ('0' < 'a' && '0' == 48 && 'a' == 97);
		184	int digit = (*s + (*s & 0x40 ? 9 : 0)) & 15;
		185
		186	seq = (seq << 4) | digit;
		187
		188	++s;
		189	}
		190
		191	return true;
		192	}
		193
		194	char *
		195	UUID::append (char *buf) const
		196	{
		197	*buf++ = '<';
		198	*buf++ = '1';
		199	*buf++ = '.';
		200
		201	uint64_t seq = this->seq;
		202	const int bits = 64;
		203	char nz = 0;
		204	static const char tohex [] = "0123456789abcdef";
		205
		206	// assert (len >= 3 + bits / 4 + 1 + 1);
		207	for (int i = bits / 4; --i; )
		208	{
		209	uint8_t digit = seq >> (bits - 4);
		210
		211	*buf = tohex [digit];
		212	nz |= digit;
		213	buf += nz ? 1 : 0;
		214	seq <<= 4;
		215	}
		216
		217	// last digit is special - always emit
		218	uint8_t digit = seq >> (bits - 4);
		219	*buf++ = tohex [digit];
		220
		221	*buf++ = '>';
		222
		223	return buf;
		224	}
		225
		226	char *
		227	UUID::c_str () const
		228	{
		229	static char buf [MAX_LEN];
		230	*append (buf) = 0;
		231	return buf;
		232	}
		233
132	/* Returns TRUE if every key_values in wants has a partner with the same value in has. */	234	/* Returns TRUE if every key_values in wants has a partner with the same value in has. */
133	static int	235	static bool
134	compare_ob_value_lists_one (const object *wants, const object *has)	236	compare_ob_value_lists_one (const object *wants, const object *has)
135	{	237	{
136	key_value *wants_field;
137
138	/* n-squared behaviour (see get_ob_key_link()), but I'm hoping both	238	/* n-squared behaviour (see kv_get), but I'm hoping both
139	* objects with lists are rare, and lists stay short. If not, use a	239	* objects with lists are rare, and lists stay short. If not, use a
140	* different structure or at least keep the lists sorted...	240	* different structure or at least keep the lists sorted...
141	*/	241	*/
142		242
143	/* For each field in wants, */	243	/* For each field in wants, */
144	for (wants_field = wants->key_values; wants_field != NULL; wants_field = wants_field->next)	244	for (key_value *kv = wants->key_values; kv; kv = kv->next)
145	{	245	if (has->kv_get (kv->key) != kv->value)
146	key_value *has_field;	246	return false;
147
148	/* Look for a field in has with the same key. */
149	has_field = get_ob_key_link (has, wants_field->key);
150
151	if (has_field == NULL)
152	{
153	/* No field with that name. */
154	return FALSE;
155	}
156
157	/* Found the matching field. */
158	if (has_field->value != wants_field->value)
159	{
160	/* Values don't match, so this half of the comparison is false. */
161	return FALSE;
162	}
163
164	/* If we get here, we found a match. Now for the next field in wants. */
165	}
166		247
167	/* If we get here, every field in wants has a matching field in has. */	248	/* If we get here, every field in wants has a matching field in has. */
168	return TRUE;	249	return true;
169	}	250	}
170		251
171	/* Returns TRUE if ob1 has the same key_values as ob2. */	252	/* Returns TRUE if ob1 has the same key_values as ob2. */
172	static int	253	static bool
173	compare_ob_value_lists (const object *ob1, const object *ob2)	254	compare_ob_value_lists (const object *ob1, const object *ob2)
174	{	255	{
175	/* However, there may be fields in has which aren't partnered in wants,	256	/* However, there may be fields in has which aren't partnered in wants,
176	* so we need to run the comparison *twice*. :(	257	* so we need to run the comparison *twice*. :(
177	*/	258	*/
178	return compare_ob_value_lists_one (ob1, ob2) && compare_ob_value_lists_one (ob2, ob1);	259	return compare_ob_value_lists_one (ob1, ob2)
		260	&& compare_ob_value_lists_one (ob2, ob1);
179	}	261	}
180		262
181	/* Function examines the 2 objects given to it, and returns true if	263	/* Function examines the 2 objects given to it, and returns true if
182	* they can be merged together.	264	* they can be merged together.
183	*	265	*
184	* Note that this function appears a lot longer than the macro it	266	* Note that this function appears a lot longer than the macro it
185	* replaces - this is mostly for clarity - a decent compiler should hopefully	267	* replaces - this is mostly for clarity - a decent compiler should hopefully
186	* reduce this to the same efficiency.	268	* reduce this to the same efficiency.
187	*	269	*
188	* Check nrof variable *before* calling CAN_MERGE()	270	* Check nrof variable *before* calling can_merge()
189	*	271	*
190	* Improvements made with merge: Better checking on potion, and also	272	* Improvements made with merge: Better checking on potion, and also
191	* check weight	273	* check weight
192	*/	274	*/
193
194	bool object::can_merge (object *ob1, object *ob2)	275	bool object::can_merge_slow (object *ob1, object *ob2)
195	{	276	{
196	/* A couple quicksanity checks */	277	/* A couple quick sanity checks */
197	if ((ob1 == ob2) || (ob1->type != ob2->type))	278	if (ob1 == ob2
		279	|| ob1->type != ob2->type
		280	|| ob1->value != ob2->value
		281	|| ob1->name != ob2->name
		282	|| fabs (ob1->speed - ob2->speed) >= MIN_ACTIVE_SPEED)
198	return 0;	283	return 0;
199		284
200	if (ob1->speed != ob2->speed)	285	/* Do not merge objects if nrof would overflow, assume nrof
		286	* is always 0 .. 2**31-1 */
		287	if (ob1->nrof > 0x7fffffff - ob2->nrof)
201	return 0;	288	return 0;
202		289
203	/* Do not merge objects if nrof would overflow. We use 1UL<<31 since that
204	* value could not be stored in a sint32 (which unfortunately sometimes is
205	* used to store nrof).
206	*/
207	if (ob1->nrof + ob2->nrof >= 1UL << 31)
208	return 0;
209
210	/* If the objects have been identified, set the BEEN_APPLIED flag.	290	/* If the objects have been identified, set the BEEN_APPLIED flag.
211	* This is to the comparison of the flags below will be OK. We	291	* This is to the comparison of the flags below will be OK. We
212	* just can't ignore the been applied or identified flags, as they	292	* just can't ignore the been applied or identified flags, as they
213	* are not equal - just if it has been identified, the been_applied	293	* are not equal - just if it has been identified, the been_applied
214	* flags lose any meaning.	294	* flags lose any meaning.
215	*/	295	*/
216	if (QUERY_FLAG (ob1, FLAG_IDENTIFIED))	296	if (ob1->flag [FLAG_IDENTIFIED])
217	SET_FLAG (ob1, FLAG_BEEN_APPLIED);	297	ob1->set_flag (FLAG_BEEN_APPLIED);
218		298
219	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))	299	if (ob2->flag [FLAG_IDENTIFIED])
220	SET_FLAG (ob2, FLAG_BEEN_APPLIED);	300	ob2->set_flag (FLAG_BEEN_APPLIED);
221		301
222		302	if (ob1->arch->archname != ob2->arch->archname
223	/* the 0x400000 on flags2 is FLAG_INV_LOCK. I don't think something
224	* being locked in inventory should prevent merging.
225	* 0x4 in flags3 is CLIENT_SENT
226	*/
227	if ((ob1->arch != ob2->arch) ||
228	(ob1->flags[0] != ob2->flags[0]) ||
229	(ob1->flags[1] != ob2->flags[1]) ||
230	((ob1->flags[2] & ~0x400000) != (ob2->flags[2] & ~0x400000)) ||
231	((ob1->flags[3] & ~0x4) != (ob2->flags[3] & ~0x4)) ||
232	(ob1->name != ob2->name) ||	303	|| ob1->name != ob2->name
233	(ob1->title != ob2->title) ||	304	|| ob1->title != ob2->title
234	(ob1->msg != ob2->msg) ||	305	|| ob1->msg != ob2->msg
235	(ob1->weight != ob2->weight) ||	306	|| ob1->weight != ob2->weight
236	(memcmp (&ob1->resist, &ob2->resist, sizeof (ob1->resist)) != 0) ||
237	(memcmp (&ob1->stats, &ob2->stats, sizeof (ob1->stats)) != 0) ||
238	(ob1->attacktype != ob2->attacktype) ||	307	|| ob1->attacktype != ob2->attacktype
239	(ob1->magic != ob2->magic) ||	308	|| ob1->magic != ob2->magic
240	(ob1->slaying != ob2->slaying) ||	309	|| ob1->slaying != ob2->slaying
241	(ob1->skill != ob2->skill) ||	310	|| ob1->skill != ob2->skill
242	(ob1->value != ob2->value) ||	311	|| ob1->value != ob2->value
243	(ob1->animation_id != ob2->animation_id) ||	312	|| ob1->animation_id != ob2->animation_id
		313	|| (ob1->face != ob2->face && !ob1->animation_id) // face and animation are dependend on each other
244	(ob1->client_type != ob2->client_type) ||	314	|| ob1->client_type != ob2->client_type
245	(ob1->materialname != ob2->materialname) ||	315	|| ob1->material != ob2->material
246	(ob1->lore != ob2->lore) ||	316	|| ob1->lore != ob2->lore
247	(ob1->subtype != ob2->subtype) ||	317	|| ob1->subtype != ob2->subtype
248	(ob1->move_type != ob2->move_type) ||	318	|| ob1->move_type != ob2->move_type
249	(ob1->move_block != ob2->move_block) ||	319	|| ob1->move_block != ob2->move_block
250	(ob1->move_allow != ob2->move_allow) ||	320	|| ob1->move_allow != ob2->move_allow
251	(ob1->move_on != ob2->move_on) ||	321	|| ob1->move_on != ob2->move_on
252	(ob1->move_off != ob2->move_off) || (ob1->move_slow != ob2->move_slow) || (ob1->move_slow_penalty != ob2->move_slow_penalty))	322	|| ob1->move_off != ob2->move_off
		323	|| ob1->move_slow != ob2->move_slow
		324	|| fabs (ob1->move_slow_penalty - ob2->move_slow_penalty) >= (1.f / 1024.f)
		325	|| memcmp (&ob1->resist, &ob2->resist, sizeof (ob1->resist))
		326	|| memcmp (&ob1->stats , &ob2->stats , sizeof (ob1->stats)))
253	return 0;	327	return 0;
254		328
		329	if ((ob1->flag ^ ob2->flag)
		330	.reset (FLAG_INV_LOCKED)
		331	.reset (FLAG_REMOVED)
		332	.any ())
		333	return 0;
		334
255	/* This is really a spellbook check - really, we should	335	/* This is really a spellbook check - we should in general
256	* check all objects in the inventory.	336	* not merge objects with real inventories, as splitting them
		337	* is hard.
257	*/	338	*/
258	if (ob1->inv || ob2->inv)	339	if (ob1->inv || ob2->inv)
259	{	340	{
260	/* if one object has inventory but the other doesn't, not equiv */
261	if ((ob1->inv && !ob2->inv) || (ob2->inv && !ob1->inv))
262	return 0;
263
264	/* Now check to see if the two inventory objects could merge */
265	if (!CAN_MERGE (ob1->inv, ob2->inv))	341	if (!(ob1->inv && ob2->inv))
266	return 0;	342	return 0; /* inventories differ in length */
		343
		344	if (ob1->inv->below || ob2->inv->below)
		345	return 0; /* more than one object in inv */
		346
		347	if (!object::can_merge (ob1->inv, ob2->inv))
		348	return 0; /* inventory objects differ */
267		349
268	/* inventory ok - still need to check rest of this object to see	350	/* inventory ok - still need to check rest of this object to see
269	* if it is valid.	351	* if it is valid.
270	*/	352	*/
271	}	353	}
272		354
273	/* Don't merge objects that are applied. With the new 'body' code,	355	/* Don't merge objects that are applied. With the new 'body' code,
274	* it is possible for most any character to have more than one of	356	* it is possible for most any character to have more than one of
275	* some items equipped, and we don't want those to merge.	357	* some items equipped, and we don't want those to merge.
276	*/	358	*/
277	if (QUERY_FLAG (ob1, FLAG_APPLIED) || QUERY_FLAG (ob2, FLAG_APPLIED))	359	if (ob1->flag [FLAG_APPLIED] || ob2->flag [FLAG_APPLIED])
278	return 0;	360	return 0;
279		361
280	/* Note sure why the following is the case - either the object has to	362	/* Note sure why the following is the case - either the object has to
281	* be animated or have a very low speed. Is this an attempted monster	363	* be animated or have a very low speed. Is this an attempted monster
282	* check?	364	* check?
283	*/	365	*/
284	if (!QUERY_FLAG (ob1, FLAG_ANIMATE) && FABS ((ob1)->speed) > MIN_ACTIVE_SPEED)	366	if (!ob1->flag [FLAG_ANIMATE] && ob1->has_active_speed ())
285	return 0;	367	return 0;
286		368
287	switch (ob1->type)	369	switch (ob1->type)
288	{	370	{
289	case SCROLL:	371	case SCROLL:
290	if (ob1->level != ob2->level)	372	if (ob1->level != ob2->level)
291	return 0;	373	return 0;
292	break;	374	break;
293	}	375	}
294		376
295	if (ob1->key_values != NULL || ob2->key_values != NULL)	377	if (ob1->key_values || ob2->key_values)
296	{	378	{
297	/* At least one of these has key_values. */	379	/* At least one of these has key_values. */
298	if ((ob1->key_values == NULL) != (ob2->key_values == NULL))	380	if ((!ob1->key_values) != (!ob2->key_values))
299	/* One has fields, but the other one doesn't. */	381	return 0; /* One has fields, but the other one doesn't. */
		382
		383	if (!compare_ob_value_lists (ob1, ob2))
300	return 0;	384	return 0;
301	else if (!compare_ob_value_lists (ob1, ob2))
302	return 0;
303	}	385	}
304		386
305	//TODO: generate an event or call into perl for additional checks
306	if (ob1->self || ob2->self)	387	if (ob1->self || ob2->self)
307	{	388	{
308	ob1->optimise ();	389	ob1->optimise ();
309	ob2->optimise ();	390	ob2->optimise ();
310		391
311	if (ob1->self || ob2->self)	392	if (ob1->self || ob2->self)
		393	{
		394	int k1 = ob1->self ? HvTOTALKEYS (ob1->self) : 0;
		395	int k2 = ob2->self ? HvTOTALKEYS (ob2->self) : 0;
		396
		397	if (k1 != k2)
312	return 0;	398	return 0;
		399
		400	if (k1 == 0)
		401	return 1;
		402
		403	if (!cfperl_can_merge (ob1, ob2))
		404	return 0;
		405	}
313	}	406	}
314		407
315	/* Everything passes, must be OK. */	408	/* Everything passes, must be OK. */
316	return 1;	409	return 1;
317	}	410	}
318		411
		412	// find player who can see this object
		413	object *
		414	object::visible_to () const
		415	{
		416	if (client_visible () && !flag [FLAG_REMOVED])
		417	{
		418	// see if we are in a container of sorts
		419	if (env)
		420	{
		421	// the player inventory itself is always visible
		422	if (env->is_player ())
		423	return env;
		424
		425	// else a player could have our env open
		426	object *envest = env->outer_env_or_self ();
		427
		428	// the player itself is always on a map, so we will find him here
		429	// even if our inv is in a player.
		430	if (envest->is_on_map ())
		431	if (object *pl = envest->ms ().player ())
		432	if (pl->container_ () == env)
		433	return pl;
		434	}
		435	else
		436	{
		437	// maybe there is a player standing on the same mapspace
		438	// this will catch the case where "this" is a player
		439	if (object *pl = ms ().player ())
		440	if ((pl->contr->ns && !pl->container_ () && !pl->contr->ns->update_look)
		441	|| pl->container_ () == this)
		442	return pl;
		443	}
		444	}
		445
		446	return 0;
		447	}
		448
		449	// adjust weight per container type ("of holding")
		450	static uint32
		451	weight_adjust_for (object *op, uint32 weight)
		452	{
		453	return op->type == CONTAINER
		454	? weight - weight * op->stats.Str / 100
		455	: weight;
		456	}
		457
319	/*	458	/*
		459	* subtracts, then adds, the specified weight to an object,
		460	* and also updates how much the environment(s) is/are carrying.
		461	*/
		462	static void
		463	adjust_weight (object *op, sint32 sub, sint32 add)
		464	{
		465	while (op)
		466	{
		467	sint32 ocarrying = op->carrying;
		468
		469	op->carrying -= weight_adjust_for (op, sub);
		470	op->carrying += weight_adjust_for (op, add);
		471
		472	if (object *pl = op->visible_to ())
		473	if (pl != op) // player is handled lazily
		474	esrv_update_item (UPD_WEIGHT, pl, op);
		475
		476	sub = ocarrying;
		477	add = op->carrying;
		478
		479	op = op->env;
		480	}
		481	}
		482
		483	/*
320	* sum_weight() is a recursive function which calculates the weight	484	* this is a recursive function which calculates the weight
321	* an object is carrying. It goes through in figures out how much	485	* an object is carrying. It goes through op and figures out how much
322	* containers are carrying, and sums it up.	486	* containers are carrying, and sums it up.
323	*/	487	*/
324	long	488	void
325	sum_weight (object *op)	489	object::update_weight ()
326	{	490	{
327	long sum;	491	sint32 sum = 0;
328	object *inv;
329		492
330	for (sum = 0, inv = op->inv; inv != NULL; inv = inv->below)	493	for (object *op = inv; op; op = op->below)
331	{
332	if (inv->inv)
333	sum_weight (inv);
334	sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1);
335	}	494	{
		495	op->update_weight ();
336		496
337	if (op->type == CONTAINER && op->stats.Str)	497	sum += weight_adjust_for (this, op->total_weight ());
338	sum = (sum * (100 - op->stats.Str)) / 100;	498	}
339		499
340	if (op->carrying != sum)	500	if (sum != carrying)
		501	{
		502	if (carrying != sum && carrying)//D
		503	LOG (llevDebug, "updating carrying got %ld, expected %ld (%s)\n",
		504	(long long)sum, (long long)carrying, debug_desc ());
		505
341	op->carrying = sum;	506	carrying = sum;
342		507
343	return sum;	508	if (object *pl = visible_to ())
		509	if (pl != this) // player is handled lazily
		510	esrv_update_item (UPD_WEIGHT, pl, this);
		511	}
344	}	512	}
345		513
346	/**	514	/*
347	* Return the outermost environment object for a given object.	515	* Used by: Server DM commands: dumpbelow, dump. Some error messages.
348	*/	516	*/
349
350	object *
351	object_get_env_recursive (object *op)
352	{
353	while (op->env != NULL)
354	op = op->env;
355	return op;
356	}
357
358	/*
359	* Eneq(@csd.uu.se): Since we can have items buried in a character we need
360	* a better check. We basically keeping traversing up until we can't
361	* or find a player.
362	*/
363
364	object *
365	is_player_inv (object *op)
366	{
367	for (; op != NULL && op->type != PLAYER; op = op->env)
368	if (op->env == op)
369	op->env = NULL;
370	return op;
371	}
372
373	/*
374	* Used by: Crossedit: dump. Server DM commands: dumpbelow, dump.
375	* Some error messages.
376	* The result of the dump is stored in the static global errmsg array.
377	*/
378
379	char *	517	char *
380	dump_object (object *op)	518	dump_object (object *op)
381	{	519	{
382	if (!op)	520	if (!op)
383	return strdup ("[NULLOBJ]");	521	return strdup ("[NULLOBJ]");
384		522
385	object_freezer freezer;	523	object_freezer freezer;
386	save_object (freezer, op, 3);	524	op->write (freezer);
387	return freezer.as_string ();	525	return freezer.as_string ();
388	}	526	}
389		527
390	/*	528	char *
391	* get_nearest_part(multi-object, object 2) returns the part of the	529	object::as_string ()
392	* multi-object 1 which is closest to the second object.
393	* If it's not a multi-object, it is returned.
394	*/
395
396	object *
397	get_nearest_part (object *op, const object *pl)
398	{	530	{
399	object *tmp, *closest;	531	return dump_object (this);
400	int last_dist, i;
401
402	if (op->more == NULL)
403	return op;
404	for (last_dist = distance (op, pl), closest = op, tmp = op->more; tmp != NULL; tmp = tmp->more)
405	if ((i = distance (tmp, pl)) < last_dist)
406	closest = tmp, last_dist = i;
407	return closest;
408	}	532	}
409		533
410	/*	534	/*
411	* Returns the object which has the count-variable equal to the argument.	535	* Returns the object which has the count-variable equal to the argument.
		536	* VERRRY slow.
412	*/	537	*/
413
414	object *	538	object *
415	find_object (tag_t i)	539	find_object (tag_t i)
416	{	540	{
417	for (object *op = object::first; op; op = op->next)	541	for_all_objects (op)
418	if (op->count == i)	542	if (op->count == i)
419	return op;	543	return op;
		544
		545	return 0;
		546	}
		547
		548	/*
		549	* Returns the object which has the uuid equal to the argument.
		550	* MOAR VERRRY slow.
		551	*/
		552
		553	object *
		554	find_object_uuid (UUID i)
		555	{
		556	for_all_objects (op)
		557	if (op->uuid == i)
		558	return op;
420		559
421	return 0;	560	return 0;
422	}	561	}
423		562
424	/*	563	/*
425	* Returns the first object which has a name equal to the argument.	564	* Returns the first object which has a name equal to the argument.
426	* Used only by the patch command, but not all that useful.	565	* Used only by the patch command, but not all that useful.
427	* Enables features like "patch <name-of-other-player> food 999"	566	* Enables features like "patch <name-of-other-player> food 999"
428	*/	567	*/
429
430	object *	568	object *
431	find_object_name (const char *str)	569	find_object_name (const char *str)
432	{	570	{
433	shstr_cmp str_ (str);	571	shstr_cmp str_ (str);
434	object *op;
435		572
436	for (op = object::first; op != NULL; op = op->next)	573	if (str_)
		574	for_all_objects (op)
437	if (op->name == str_)	575	if (op->name == str_)
438	break;	576	return op;
439		577
440	return op;	578	return 0;
441	}
442
443	void
444	free_all_object_data ()
445	{
446	LOG (llevDebug, "%d allocated objects\n", nrofallocobjects);
447	}	579	}
448		580
449	/*	581	/*
450	* Sets the owner and sets the skill and exp pointers to owner's current	582	* Sets the owner and sets the skill and exp pointers to owner's current
451	* skill and experience objects.	583	* skill and experience objects.
		584	* ACTUALLY NO! investigate! TODO
452	*/	585	*/
453	void	586	void
454	object::set_owner (object *owner)	587	object::set_owner (object *owner)
455	{	588	{
		589	// allow objects which own objects
456	if (!owner)	590	if (owner)
457	return;
458
459	/* next line added to allow objects which own objects */
460	/* Add a check for ownercounts in here, as I got into an endless loop
461	* with the fireball owning a poison cloud which then owned the
462	* fireball. I believe that was caused by one of the objects getting
463	* freed and then another object replacing it. Since the ownercounts
464	* didn't match, this check is valid and I believe that cause is valid.
465	*/
466	while (owner->owner)	591	while (owner->owner)
467	owner = owner->owner;	592	owner = owner->owner;
		593
		594	if (flag [FLAG_FREED])
		595	{
		596	LOG (llevError | logBacktrace, "tried to set owner of %s to %s\n", debug_desc (), owner->debug_desc ());
		597	return;
		598	}
468		599
469	this->owner = owner;	600	this->owner = owner;
470	}	601	}
471		602
472	/* Zero the key_values on op, decrementing the shared-string	603	/* Zero the key_values on op, decrementing the shared-string
473	* refcounts and freeing the links.	604	* refcounts and freeing the links.
474	*/	605	*/
475	static void	606	static void
476	free_key_values (object *op)	607	free_key_values (object *op)
477	{	608	{
478	for (key_value *i = op->key_values; i != 0;)	609	for (key_value *i = op->key_values; i; )
479	{	610	{
480	key_value *next = i->next;	611	key_value *next = i->next;
481	delete i;	612	delete i;
482		613
483	i = next;	614	i = next;
484	}	615	}
485		616
486	op->key_values = 0;	617	op->key_values = 0;
487	}	618	}
488		619
489	void object::clear ()
490	{
491	attachable_base::clear ();
492
493	free_key_values (this);
494
495	owner = 0;
496	name = 0;
497	name_pl = 0;
498	title = 0;
499	race = 0;
500	slaying = 0;
501	skill = 0;
502	msg = 0;
503	lore = 0;
504	custom_name = 0;
505	materialname = 0;
506	contr = 0;
507	below = 0;
508	above = 0;
509	inv = 0;
510	container = 0;
511	env = 0;
512	more = 0;
513	head = 0;
514	map = 0;
515	active_next = 0;
516	active_prev = 0;
517
518	memset (static_cast<object_pod *>(this), 0, sizeof (object_pod));
519
520	SET_FLAG (this, FLAG_REMOVED);
521
522	/* What is not cleared is next, prev, and count */
523
524	expmul = 1.0;
525	face = blank_face;
526
527	if (settings.casting_time)
528	casting_time = -1;
529	}
530
531	void object::clone (object *destination)
532	{
533	*(object_copy *)destination = *this;
534	*(object_pod *)destination = *this;
535
536	if (self || cb)
537	INVOKE_OBJECT (CLONE, this, ARG_OBJECT (destination));
538	}
539
540	/*	620	/*
541	* copy object first frees everything allocated by the second object,	621	* copy_to first frees everything allocated by the dst object,
542	* and then copies the contends of the first object into the second	622	* and then copies the contents of itself into the second
543	* object, allocating what needs to be allocated. Basically, any	623	* object, allocating what needs to be allocated. Basically, any
544	* data that is malloc'd needs to be re-malloc/copied. Otherwise,	624	* data that is malloc'd needs to be re-malloc/copied. Otherwise,
545	* if the first object is freed, the pointers in the new object	625	* if the first object is freed, the pointers in the new object
546	* will point at garbage.	626	* will point at garbage.
547	*/	627	*/
548	void	628	void
549	copy_object (object *op2, object *op)	629	object::copy_to (object *dst)
550	{	630	{
551	bool is_freed = QUERY_FLAG (op, FLAG_FREED);	631	dst->remove ();
552	bool is_removed = QUERY_FLAG (op, FLAG_REMOVED);	632	*(object_copy *)dst = *this;
553		633	dst->flag [FLAG_REMOVED] = true;
554	op2->clone (op);
555
556	if (is_freed)
557	SET_FLAG (op, FLAG_FREED);
558	if (is_removed)
559	SET_FLAG (op, FLAG_REMOVED);
560
561	if (op2->speed < 0)
562	op->speed_left = op2->speed_left - RANDOM () % 200 / 100.0;
563		634
564	/* Copy over key_values, if any. */	635	/* Copy over key_values, if any. */
565	if (op2->key_values)	636	if (key_values)
566	{	637	{
567	key_value *tail = 0;	638	key_value *tail = 0;
568	key_value *i;
569
570	op->key_values = 0;	639	dst->key_values = 0;
571		640
572	for (i = op2->key_values; i; i = i->next)	641	for (key_value *i = key_values; i; i = i->next)
573	{	642	{
574	key_value *new_link = new key_value;	643	key_value *new_link = new key_value;
575		644
576	new_link->next = 0;	645	new_link->next = 0;
577	new_link->key = i->key;	646	new_link->key = i->key;
578	new_link->value = i->value;	647	new_link->value = i->value;
579		648
580	/* Try and be clever here, too. */	649	/* Try and be clever here, too. */
581	if (!op->key_values)	650	if (!dst->key_values)
582	{	651	{
583	op->key_values = new_link;	652	dst->key_values = new_link;
584	tail = new_link;	653	tail = new_link;
585	}	654	}
586	else	655	else
587	{	656	{
588	tail->next = new_link;	657	tail->next = new_link;
589	tail = new_link;	658	tail = new_link;
590	}	659	}
591	}	660	}
592	}	661	}
593		662
594	update_ob_speed (op);	663	dst->activate ();
		664	}
		665
		666	void
		667	object::instantiate ()
		668	{
		669	if (!uuid.seq) // HACK
		670	uuid = UUID::gen ();
		671
		672	// TODO: unclean state changes, should nt be done in copy_to AND instantiate
		673	if (flag [FLAG_RANDOM_SPEED] && speed)
		674	speed_left = - speed - rndm (); // TODO animation
		675	else
		676	speed_left = -1.;
		677
		678	/* copy the body_info to the body_used - this is only really
		679	* need for monsters, but doesn't hurt to do it for everything.
		680	* by doing so, when a monster is created, it has good starting
		681	* values for the body_used info, so when items are created
		682	* for it, they can be properly equipped.
		683	*/
		684	for (int i = NUM_BODY_LOCATIONS; i--; )
		685	slot[i].used = slot[i].info;
		686
		687	attachable::instantiate ();
		688	}
		689
		690	object *
		691	object::clone ()
		692	{
		693	object *neu = create ();
		694	copy_to (neu);
		695
		696	// TODO: unclean state changes, should not be done in clone AND instantiate
		697	if (neu->flag [FLAG_RANDOM_SPEED] && neu->speed)
		698	neu->speed_left = - neu->speed - rndm (); // TODO animation
		699
		700	neu->map = map; // not copied by copy_to
		701	return neu;
595	}	702	}
596		703
597	/*	704	/*
598	* If an object with the IS_TURNABLE() flag needs to be turned due	705	* If an object with the IS_TURNABLE() flag needs to be turned due
599	* to the closest player being on the other side, this function can	706	* to the closest player being on the other side, this function can
600	* be called to update the face variable, _and_ how it looks on the map.	707	* be called to update the face variable, _and_ how it looks on the map.
601	*/	708	*/
602
603	void	709	void
604	update_turn_face (object *op)	710	update_turn_face (object *op)
605	{	711	{
606	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || op->arch == NULL)	712	if (!op->flag [FLAG_IS_TURNABLE] || !op->arch)
607	return;	713	return;
		714
608	SET_ANIMATION (op, op->direction);	715	SET_ANIMATION (op, op->direction);
609	update_object (op, UP_OBJ_FACE);	716	update_object (op, UP_OBJ_FACE);
610	}	717	}
611		718
612	/*	719	/*
613	* Updates the speed of an object. If the speed changes from 0 to another	720	* Updates the speed of an object. If the speed changes from 0 to another
614	* value, or vice versa, then add/remove the object from the active list.	721	* value, or vice versa, then add/remove the object from the active list.
615	* This function needs to be called whenever the speed of an object changes.	722	* This function needs to be called whenever the speed of an object changes.
616	*/	723	*/
617	void	724	void
618	update_ob_speed (object *op)	725	object::set_speed (float speed)
619	{	726	{
620	extern int arch_init;	727	this->speed = speed;
621		728
622	/* No reason putting the archetypes objects on the speed list,	729	if (has_active_speed ())
623	* since they never really need to be updated.	730	activate ();
624	*/
625
626	if (QUERY_FLAG (op, FLAG_FREED) && op->speed)
627	{
628	LOG (llevError, "Object %s is freed but has speed.\n", &op->name);
629	#ifdef MANY_CORES
630	abort ();
631	#else
632	op->speed = 0;
633	#endif
634	}
635
636	if (arch_init)
637	return;
638
639	if (FABS (op->speed) > MIN_ACTIVE_SPEED)
640	{
641	/* If already on active list, don't do anything */
642	if (op->active_next || op->active_prev || op == active_objects)
643	return;
644
645	/* process_events() expects us to insert the object at the beginning
646	* of the list. */
647	op->active_next = active_objects;
648
649	if (op->active_next != NULL)
650	op->active_next->active_prev = op;
651
652	active_objects = op;
653	}
654	else	731	else
655	{	732	deactivate ();
656	/* If not on the active list, nothing needs to be done */
657	if (!op->active_next && !op->active_prev && op != active_objects)
658	return;
659
660	if (op->active_prev == NULL)
661	{
662	active_objects = op->active_next;
663
664	if (op->active_next != NULL)
665	op->active_next->active_prev = NULL;
666	}
667	else
668	{
669	op->active_prev->active_next = op->active_next;
670
671	if (op->active_next)
672	op->active_next->active_prev = op->active_prev;
673	}
674
675	op->active_next = NULL;
676	op->active_prev = NULL;
677	}
678	}	733	}
679		734
680	/* This function removes object 'op' from the list of active
681	* objects.
682	* This should only be used for style maps or other such
683	* reference maps where you don't want an object that isn't
684	* in play chewing up cpu time getting processed.
685	* The reverse of this is to call update_ob_speed, which
686	* will do the right thing based on the speed of the object.
687	*/
688	void
689	remove_from_active_list (object *op)
690	{
691	/* If not on the active list, nothing needs to be done */
692	if (!op->active_next && !op->active_prev && op != active_objects)
693	return;
694
695	if (op->active_prev == NULL)
696	{
697	active_objects = op->active_next;
698	if (op->active_next != NULL)
699	op->active_next->active_prev = NULL;
700	}
701	else
702	{
703	op->active_prev->active_next = op->active_next;
704	if (op->active_next)
705	op->active_next->active_prev = op->active_prev;
706	}
707	op->active_next = NULL;
708	op->active_prev = NULL;
709	}
710
711	/*	735	/*
712	* update_object() updates the array which represents the map.	736	* update_object() updates the the map.
713	* It takes into account invisible objects (and represent squares covered	737	* It takes into account invisible objects (and represent squares covered
714	* by invisible objects by whatever is below them (unless it's another	738	* by invisible objects by whatever is below them (unless it's another
715	* invisible object, etc...)	739	* invisible object, etc...)
716	* If the object being updated is beneath a player, the look-window	740	* If the object being updated is beneath a player, the look-window
717	* of that player is updated (this might be a suboptimal way of	741	* of that player is updated (this might be a suboptimal way of
718	* updating that window, though, since update_object() is called _often_)	742	* updating that window, though, since update_object() is called _often_)
719	*	743	*
720	* action is a hint of what the caller believes need to be done.	744	* action is a hint of what the caller believes need to be done.
721	* For example, if the only thing that has changed is the face (due to
722	* an animation), we don't need to call update_position until that actually
723	* comes into view of a player. OTOH, many other things, like addition/removal
724	* of walls or living creatures may need us to update the flags now.
725	* current action are:	745	* current action are:
726	* UP_OBJ_INSERT: op was inserted	746	* UP_OBJ_INSERT: op was inserted
727	* UP_OBJ_REMOVE: op was removed	747	* UP_OBJ_REMOVE: op was removed
728	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update	748	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update
729	* as that is easier than trying to look at what may have changed.	749	* as that is easier than trying to look at what may have changed.
730	* UP_OBJ_FACE: only the objects face has changed.	750	* UP_OBJ_FACE: only the objects face has changed.
731	*/	751	*/
732
733	void	752	void
734	update_object (object *op, int action)	753	update_object (object *op, int action)
735	{	754	{
736	int update_now = 0, flags;	755	if (!op)
737	MoveType move_on, move_off, move_block, move_slow;
738
739	if (op == NULL)
740	{	756	{
741	/* this should never happen */	757	/* this should never happen */
742	LOG (llevDebug, "update_object() called for NULL object.\n");	758	LOG (llevError | logBacktrace, "update_object() called for NULL object.\n");
743	return;	759	return;
744	}	760	}
745		761
746	if (op->env != NULL)	762	if (!op->is_on_map ())
747	{	763	{
748	/* Animation is currently handled by client, so nothing	764	/* Animation is currently handled by client, so nothing
749	* to do in this case.	765	* to do in this case.
750	*/	766	*/
751	return;	767	return;
752	}	768	}
753		769
754	/* If the map is saving, don't do anything as everything is
755	* going to get freed anyways.
756	*/
757	if (!op->map || op->map->in_memory == MAP_SAVING)
758	return;
759
760	/* make sure the object is within map boundaries */	770	/* make sure the object is within map boundaries */
761	if (op->x < 0 || op->x >= MAP_WIDTH (op->map) || op->y < 0 || op->y >= MAP_HEIGHT (op->map))	771	if (op->x < 0 || op->x >= op->map->width || op->y < 0 || op->y >= op->map->height)
762	{	772	{
763	LOG (llevError, "update_object() called for object out of map!\n");	773	LOG (llevError, "update_object() called for object out of map!\n");
764	#ifdef MANY_CORES	774	#ifdef MANY_CORES
765	abort ();	775	abort ();
766	#endif	776	#endif
767	return;	777	return;
768	}	778	}
769		779
770	flags = GET_MAP_FLAGS (op->map, op->x, op->y);	780	mapspace &m = op->ms ();
771	SET_MAP_FLAGS (op->map, op->x, op->y, flags | P_NEED_UPDATE);
772	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);
773	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);
774	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);
775	move_off = GET_MAP_MOVE_OFF (op->map, op->x, op->y);
776		781
		782	if (!(m.flags_ & P_UPTODATE))
		783	/* nop */;
777	if (action == UP_OBJ_INSERT)	784	else if (action == UP_OBJ_INSERT)
778	{	785	{
		786	#if 0
		787	// this is likely overkill, TODO: revisit (schmorp)
779	if (QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(flags & P_BLOCKSVIEW))	788	if ((op->flag [FLAG_BLOCKSVIEW] && !(m.flags_ & P_BLOCKSVIEW))
780	update_now = 1;	789	|| (op->flag [FLAG_NO_MAGIC] && !(m.flags_ & P_NO_MAGIC))
781		790	|| (op->is_player () && !(m.flags_ & P_PLAYER))
782	if (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(flags & P_NO_MAGIC))
783	update_now = 1;
784
785	if (QUERY_FLAG (op, FLAG_DAMNED) && !(flags & P_NO_CLERIC))
786	update_now = 1;
787
788	if (QUERY_FLAG (op, FLAG_ALIVE) && !(flags & P_IS_ALIVE))
789	update_now = 1;
790
791	if (op->type == SAFE_GROUND && !(flags & P_SAFE))	791	|| (op->type == SAFE_GROUND && !(m.flags_ & P_SAFE))
792	update_now = 1;	792	|| (op->flag [FLAG_ALIVE] && !(m.flags_ & P_IS_ALIVE))
793		793	|| (op->flag [FLAG_DAMNED] && !(m.flags_ & P_NO_CLERIC))
794	if ((move_on | op->move_on) != move_on)	794	|| (m.move_on | op->move_on ) != m.move_on
795	update_now = 1;
796
797	if ((move_off | op->move_off) != move_off)	795	|| (m.move_off | op->move_off ) != m.move_off
798	update_now = 1;	796	|| (m.move_slow | op->move_slow) != m.move_slow
799
800	/* This isn't perfect, but I don't expect a lot of objects to	797	/* This isn't perfect, but I don't expect a lot of objects to
801	* to have move_allow right now.	798	* have move_allow right now.
802	*/	799	*/
803	if (((move_block | op->move_block) & ~op->move_allow) != move_block)	800	|| ((m.move_block | op->move_block) & ~op->move_allow) != m.move_block
804	update_now = 1;	801	m.invalidate ();
805		802	#else
806	if ((move_slow | op->move_slow) != move_slow)	803	// the above is not strong enough a test to skip updating. los maybe? TODO (schmorp)
807	update_now = 1;	804	m.invalidate ();
		805	#endif
808	}	806	}
809	/* if the object is being removed, we can't make intelligent	807	/* if the object is being removed, we can't make intelligent
810	* decisions, because remove_ob can't really pass the object	808	* decisions, because remove_ob can't really pass the object
811	* that is being removed.	809	* that is being removed.
812	*/	810	*/
813	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)	811	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)
814	update_now = 1;	812	m.invalidate ();
815	else if (action == UP_OBJ_FACE)	813	else if (action == UP_OBJ_FACE)
816	/* Nothing to do for that case */ ;	814	/* Nothing to do for that case */ ;
817	else	815	else
818	LOG (llevError, "update_object called with invalid action: %d\n", action);	816	LOG (llevError, "update_object called with invalid action: %d\n", action);
819		817
820	if (update_now)
821	{
822	SET_MAP_FLAGS (op->map, op->x, op->y, flags | P_NO_ERROR | P_NEED_UPDATE);
823	update_position (op->map, op->x, op->y);
824	}
825
826	if (op->more != NULL)	818	if (op->more)
827	update_object (op->more, action);	819	update_object (op->more, action);
828	}	820	}
829		821
830	object::vector object::mortals;
831	object::vector object::objects; // not yet used
832	object *object::first;
833
834	void object::free_mortals ()
835	{
836	for (AUTODECL (i, mortals.begin ()); i != mortals.end ();)
837	if ((*i)->refcnt)
838	++i; // further delay freeing
839	else
840	{
841	delete *i;
842	mortals.erase (i);
843	}
844
845	static int lastmortals = 0;//D
846
847	if (mortals.size() != lastmortals && lastmortals > 100)//D
848	{
849	lastmortals = mortals.size ();//D
850	LOG (llevDebug, "%d objects in mortal queue\n", lastmortals);//D
851	}
852	}
853
854	object::object ()	822	object::object ()
855	{	823	{
856	SET_FLAG (this, FLAG_REMOVED);	824	this->set_flag (FLAG_REMOVED);
857		825
858	expmul = 1.0;	826	//expmul = 1.0; declared const for the time being
859	face = blank_face;	827	face = blank_face;
		828	material = MATERIAL_NULL;
860	}	829	}
861		830
862	object::~object ()	831	object::~object ()
863	{	832	{
		833	unlink ();
		834
864	free_key_values (this);	835	free_key_values (this);
865	}	836	}
866		837
867	void object::link ()	838	void object::link ()
868	{	839	{
869	count = ++ob_count;	840	assert (!index);//D
870	uuid = gen_uuid ();	841	uuid = UUID::gen ();
871		842
872	prev = 0;	843	refcnt_inc ();
873	next = object::first;	844	objects.insert (this);
874		845
875	if (object::first)	846	++create_count;
876	object::first->prev = this;
877		847
878	object::first = this;
879	}	848	}
880		849
881	void object::unlink ()	850	void object::unlink ()
882	{	851	{
883	if (this == object::first)	852	if (!index)
884	object::first = next;
885
886	/* Remove this object from the list of used objects */
887	if (prev) prev->next = next;
888	if (next) next->prev = prev;
889
890	prev = 0;
891	next = 0;
892	}
893
894	object *object::create ()
895	{
896	object *op = new object;
897	op->link ();
898	return op;
899	}
900
901	/*
902	* free_object() frees everything allocated by an object, removes
903	* it from the list of used objects, and puts it on the list of
904	* free objects. The IS_FREED() flag is set in the object.
905	* The object must have been removed by remove_ob() first for
906	* this function to succeed.
907	*
908	* If destroy_inventory is set, free inventory as well. Else drop items in
909	* inventory to the ground.
910	*/
911	void object::destroy (bool destroy_inventory)
912	{
913	if (QUERY_FLAG (this, FLAG_FREED))
914	return;	853	return;
915		854
916	if (QUERY_FLAG (this, FLAG_FRIENDLY))	855	++destroy_count;
917	remove_friendly_object (this);
918		856
919	if (!QUERY_FLAG (this, FLAG_REMOVED))	857	objects.erase (this);
920	remove_ob (this);	858	refcnt_dec ();
		859	}
921		860
922	SET_FLAG (this, FLAG_FREED);	861	void
		862	object::activate ()
		863	{
		864	/* If already on active list, don't do anything */
		865	if (active)
		866	return;
923		867
924	if (more)	868	if (has_active_speed ())
925	{
926	more->destroy (destroy_inventory);
927	more = 0;
928	}	869	{
		870	if (flag [FLAG_FREED])
		871	LOG (llevError | logBacktrace, "BUG: tried to activate freed object %s\n", debug_desc ());//D
929		872
		873	actives.insert (this);
		874	}
		875	}
		876
		877	void
		878	object::activate_recursive ()
		879	{
		880	activate ();
		881
		882	for (object *op = inv; op; op = op->below)
		883	op->activate_recursive ();
		884	}
		885
		886	/* This function removes object 'op' from the list of active
		887	* objects.
		888	* This should only be used for style maps or other such
		889	* reference maps where you don't want an object that isn't
		890	* in play chewing up cpu time getting processed.
		891	* The reverse of this is to call update_ob_speed, which
		892	* will do the right thing based on the speed of the object.
		893	*/
		894	void
		895	object::deactivate ()
		896	{
		897	/* If not on the active list, nothing needs to be done */
		898	if (!active)
		899	return;
		900
		901	actives.erase (this);
		902	}
		903
		904	void
		905	object::deactivate_recursive ()
		906	{
		907	for (object *op = inv; op; op = op->below)
		908	op->deactivate_recursive ();
		909
		910	deactivate ();
		911	}
		912
		913	void
		914	object::set_flag_inv (int flag, int value)
		915	{
		916	for (object *op = inv; op; op = op->below)
		917	{
		918	op->flag [flag] = value;
		919	op->set_flag_inv (flag, value);
		920	}
		921	}
		922
		923	/*
		924	* Remove and free all objects in the inventory of the given object.
		925	* object.c ?
		926	*/
		927	void
		928	object::destroy_inv (bool drop_to_ground)
		929	{
		930	// need to check first, because the checks below might segfault
		931	// as we might be on an invalid mapspace and crossfire code
		932	// is too buggy to ensure that the inventory is empty.
		933	// corollary: if you create arrows etc. with stuff in its inventory,
		934	// cf will crash below with off-map x and y
930	if (inv)	935	if (!inv)
931	{	936	return;
		937
932	/* Only if the space blocks everything do we not process -	938	/* Only if the space blocks everything do we not process -
933	* if some form of movement is allowed, let objects	939	* if some form of movement is allowed, let objects
934	* drop on that space.	940	* drop on that space.
935	*/	941	*/
936	if (destroy_inventory || !map || map->in_memory != MAP_IN_MEMORY || GET_MAP_MOVE_BLOCK (map, x, y) == MOVE_ALL)	942	if (!drop_to_ground
		943	|| !map
		944	|| map->in_memory != MAP_ACTIVE
		945	|| map->no_drop
		946	|| ms ().move_block == MOVE_ALL)
		947	{
		948	while (inv)
		949	inv->destroy ();
		950	}
		951	else
		952	{ /* Put objects in inventory onto this space */
		953	while (inv)
937	{	954	{
938	object *op = inv;	955	object *op = inv;
939		956
940	while (op)	957	if (op->flag [FLAG_STARTEQUIP]
941	{	958	|| op->flag [FLAG_NO_DROP]
942	object *tmp = op->below;	959	|| op->type == RUNE
943	op->destroy (destroy_inventory);	960	|| op->type == TRAP
944	op = tmp;	961	|| op->flag [FLAG_IS_A_TEMPLATE]
945	}	962	|| op->flag [FLAG_DESTROY_ON_DEATH])
		963	op->destroy ();
		964	else
		965	map->insert (op, x, y);
946	}	966	}
947	else	967	}
948	{ /* Put objects in inventory onto this space */	968	}
949	object *op = inv;
950		969
951	while (op)	970	/*
952	{	971	* Remove and free all objects in the inventory of the given object.
953	object *tmp = op->below;	972	* Unlike destroy_inv, this assumes the *this is destroyed as well
954		973	* well, so we can (and have to!) take shortcuts.
955	remove_ob (op);	974	*/
956		975	void
957	if (QUERY_FLAG (op, FLAG_STARTEQUIP)	976	object::destroy_inv_fast ()
958	|| QUERY_FLAG (op, FLAG_NO_DROP) || op->type == RUNE || op->type == TRAP || QUERY_FLAG (op, FLAG_IS_A_TEMPLATE))	977	{
959	free_object (op);	978	while (object *op = inv)
960	else
961	{
962	op->x = x;
963	op->y = y;
964	insert_ob_in_map (op, map, 0, 0); /* Insert in same map as the envir */
965	}
966
967	op = tmp;
968	}
969	}
970	}	979	{
		980	// remove from object the fast way
		981	op->flag [FLAG_REMOVED] = true;
		982	op->env = 0;
		983	if ((inv = inv->below))
		984	inv->above = 0;
971		985
972	// clear those pointers that likely might have circular references to us	986	// then destroy
973	owner = 0;	987	op->destroy ();
974	enemy = 0;	988	}
975	attacked_by = 0;	989	}
976		990
977	// only relevant for players(?), but make sure of it anyways	991	void
978	contr = 0;	992	object::freelist_free (int count)
		993	{
		994	while (count-- && freelist)
		995	{
		996	freelist_item *next = freelist->next;
		997	// count is being "destroyed"
979		998
980	/* Remove object from the active list */	999	sfree ((char *)freelist, sizeof (object));
981	speed = 0;
982	update_ob_speed (this);
983		1000
		1001	freelist = next;
		1002	--free_count;
		1003	}
		1004	}
		1005
		1006	object *
		1007	object::create ()
		1008	{
		1009	object *op;
		1010
		1011	if (freelist)
		1012	{
		1013	freelist_item li = *freelist;
		1014	memset (freelist, 0, sizeof (object));
		1015
		1016	op = new (freelist) object;
		1017	op->count = li.count;
		1018
		1019	freelist = li.next;
		1020	--free_count;
		1021	}
		1022	else
		1023	{
		1024	void *ni = salloc0<char> (sizeof (object));
		1025
		1026	op = new(ni) object;
		1027
		1028	op->count = ++object_count;
		1029	}
		1030
		1031	op->link ();
		1032
		1033	return op;
		1034	}
		1035
		1036	void
		1037	object::do_delete ()
		1038	{
		1039	uint32_t count = this->count;
		1040
		1041	this->~object ();
		1042
		1043	freelist_item *li = (freelist_item *)this;
		1044	li->next = freelist;
		1045	li->count = count;
		1046
		1047	freelist = li;
		1048	++free_count;
		1049	}
		1050
		1051	static struct freed_map : maptile
		1052	{
		1053	freed_map ()
		1054	: maptile (3, 3)
		1055	{
		1056	path = "<freed objects map>";
		1057	name = "/internal/freed_objects_map";
		1058	no_drop = 1;
		1059	no_reset = 1;
		1060
		1061	in_memory = MAP_ACTIVE;
		1062	}
		1063
		1064	~freed_map ()
		1065	{
		1066	destroy ();
		1067	}
		1068	} freed_map; // freed objects are moved here to avoid crashes
		1069
		1070	void
		1071	object::do_destroy ()
		1072	{
		1073	if (flag [FLAG_IS_LINKED])
		1074	remove_link ();
		1075
		1076	if (flag [FLAG_FRIENDLY])
		1077	remove_friendly_object (this);
		1078
		1079	remove ();
		1080
		1081	attachable::do_destroy ();
		1082
		1083	deactivate ();
984	unlink ();	1084	unlink ();
985		1085
986	mortals.push_back (this);	1086	flag [FLAG_FREED] = 1;
987	}
988		1087
989	/*	1088	// hack to ensure that freed objects still have a valid map
990	* sub_weight() recursively (outwards) subtracts a number from the	1089	map = &freed_map;
991	* weight of an object (and what is carried by it's environment(s)).	1090	x = 1;
992	*/	1091	y = 1;
993		1092
994	void	1093	if (more)
995	sub_weight (object *op, signed long weight)
996	{
997	while (op != NULL)
998	{
999	if (op->type == CONTAINER)
1000	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1001
1002	op->carrying -= weight;
1003	op = op->env;
1004	}	1094	{
1005	}	1095	more->destroy ();
		1096	more = 0;
		1097	}
1006		1098
1007	/* remove_ob(op):	1099	head = 0;
		1100
		1101	// clear those pointers that likely might cause circular references
		1102	owner = 0;
		1103	enemy = 0;
		1104	attacked_by = 0;
		1105	current_weapon = 0;
		1106	}
		1107
		1108	void
		1109	object::destroy ()
		1110	{
		1111	if (destroyed ())
		1112	return;
		1113
		1114	if (!is_head () && !head->destroyed ())
		1115	{
		1116	LOG (llevError | logBacktrace, "tried to destroy the tail of an object");
		1117	head->destroy ();
		1118	return;
		1119	}
		1120
		1121	destroy_inv_fast ();
		1122
		1123	if (is_head ())
		1124	if (sound_destroy)
		1125	play_sound (sound_destroy);
		1126	else if (flag [FLAG_MONSTER])
		1127	play_sound (sound_find ("monster_destroy")); // quick hack, too lazy to create a generic mechanism
		1128
		1129	attachable::destroy ();
		1130	}
		1131
		1132	/* op->remove ():
1008	* This function removes the object op from the linked list of objects	1133	* This function removes the object op from the linked list of objects
1009	* which it is currently tied to. When this function is done, the	1134	* which it is currently tied to. When this function is done, the
1010	* object will have no environment. If the object previously had an	1135	* object will have no environment. If the object previously had an
1011	* environment, the x and y coordinates will be updated to	1136	* environment, the x and y coordinates will be updated to
1012	* the previous environment.	1137	* the previous environment.
1013	* Beware: This function is called from the editor as well!
1014	*/	1138	*/
1015
1016	void	1139	void
1017	remove_ob (object *op)	1140	object::do_remove ()
1018	{	1141	{
1019	object *tmp, *last = 0;	1142	if (flag [FLAG_REMOVED])
1020	object *otmp;
1021
1022	int check_walk_off;
1023	maptile *m;
1024
1025	sint16 x, y;
1026
1027	if (QUERY_FLAG (op, FLAG_REMOVED))
1028	return;	1143	return;
1029		1144
1030	SET_FLAG (op, FLAG_REMOVED);	1145	INVOKE_OBJECT (REMOVE, this);
1031		1146
1032	if (op->more != NULL)	1147	flag [FLAG_REMOVED] = true;
1033	remove_ob (op->more);	1148
		1149	if (more)
		1150	more->remove ();
1034		1151
1035	/*	1152	/*
1036	* In this case, the object to be removed is in someones	1153	* In this case, the object to be removed is in someones
1037	* inventory.	1154	* inventory.
1038	*/	1155	*/
1039	if (op->env != NULL)	1156	if (env)
1040	{	1157	{
1041	if (op->nrof)	1158	flag [FLAG_REMOVED] = false; // hack around the issue of visible_to checking flag_removed
1042	sub_weight (op->env, op->weight * op->nrof);	1159	if (object *pl = visible_to ())
1043	else	1160	esrv_del_item (pl->contr, count);
1044	sub_weight (op->env, op->weight + op->carrying);	1161	flag [FLAG_REMOVED] = true; // hack around the issue of visible_to checking flag_removed
1045		1162
1046	/* NO_FIX_PLAYER is set when a great many changes are being	1163	adjust_weight (env, total_weight (), 0);
1047	* made to players inventory. If set, avoiding the call
1048	* to save cpu time.
1049	*/
1050	if ((otmp = is_player_inv (op->env)) != NULL && otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1051	fix_player (otmp);
1052		1164
1053	if (op->above != NULL)	1165	object *pl = in_player ();
1054	op->above->below = op->below;
1055	else
1056	op->env->inv = op->below;
1057
1058	if (op->below != NULL)
1059	op->below->above = op->above;
1060		1166
1061	/* we set up values so that it could be inserted into	1167	/* we set up values so that it could be inserted into
1062	* the map, but we don't actually do that - it is up	1168	* the map, but we don't actually do that - it is up
1063	* to the caller to decide what we want to do.	1169	* to the caller to decide what we want to do.
1064	*/	1170	*/
1065	op->x = op->env->x, op->y = op->env->y;
1066	op->map = op->env->map;	1171	map = env->map;
1067	op->above = NULL, op->below = NULL;
1068	op->env = NULL;
1069	}
1070	else if (op->map)
1071	{
1072	x = op->x;	1172	x = env->x;
1073	y = op->y;	1173	y = env->y;
1074	m = get_map_from_coord (op->map, &x, &y);
1075		1174
1076	if (!m)	1175	// make sure cmov optimisation is applicable
		1176	*(above ? &above->below : &env->inv) = below;
		1177	*(below ? &below->above : &above ) = above; // &above is just a dummy
		1178
		1179	above = 0;
		1180	below = 0;
		1181	env = 0;
		1182
		1183	if (pl && pl->is_player ())
1077	{	1184	{
1078	LOG (llevError, "remove_ob called when object was on map but appears to not be within valid coordinates? %s (%d,%d)\n",	1185	if (expect_false (pl->contr->combat_ob == this))
1079	op->map->path, op->x, op->y);
1080	/* in old days, we used to set x and y to 0 and continue.
1081	* it seems if we get into this case, something is probablye
1082	* screwed up and should be fixed.
1083	*/	1186	{
1084	abort ();	1187	pl->apply (pl->contr->combat_ob, AP_UNAPPLY | AP_IGNORE_CURSE);
		1188	pl->contr->combat_ob = 0;
		1189	if (pl->contr->ranged_ob) pl->apply (pl->contr->ranged_ob);
		1190	}
		1191
		1192	if (expect_false (pl->contr->ranged_ob == this))
		1193	{
		1194	pl->apply (pl->contr->ranged_ob, AP_UNAPPLY | AP_IGNORE_CURSE);
		1195	pl->contr->ranged_ob = 0;
		1196	if (pl->contr->combat_ob) pl->apply (pl->contr->combat_ob);
		1197	}
		1198
		1199	pl->contr->queue_stats_update ();
		1200
		1201	if (expect_false (glow_radius) && pl->is_on_map ())
		1202	update_all_los (pl->map, pl->x, pl->y);
1085	}	1203	}
		1204	}
		1205	else if (map)
		1206	{
		1207	map->dirty = true;
		1208	mapspace &ms = this->ms ();
1086		1209
1087	if (op->map != m)	1210	if (object *pl = ms.player ())
1088	LOG (llevDebug, "remove_ob: Object not really on map it claimed to be on? %s != %s, %d,%d != %d,%d\n",
1089	op->map->path, m->path, op->x, op->y, x, y);
1090
1091	/* Re did the following section of code - it looks like it had
1092	* lots of logic for things we no longer care about
1093	*/	1211	{
		1212	if (is_player ())
		1213	{
		1214	if (!flag [FLAG_WIZPASS])
		1215	ms.smell = ++mapspace::smellcount; // remember the smell of the player
		1216
		1217	// leaving a spot always closes any open container on the ground
		1218	if (container && !container->env)
		1219	// this causes spurious floorbox updates, but it ensures
		1220	// that the CLOSE event is being sent.
		1221	close_container ();
		1222
		1223	--map->players;
		1224	map->touch ();
		1225	}
		1226	else if (pl->container_ () == this)
		1227	{
		1228	// removing a container should close it
		1229	close_container ();
		1230	}
		1231	else
		1232	esrv_del_item (pl->contr, count);
		1233	}
1094		1234
1095	/* link the object above us */	1235	/* link the object above us */
1096	if (op->above)	1236	// re-link, make sure compiler can easily use cmove
1097	op->above->below = op->below;	1237	*(above ? &above->below : &ms.top) = below;
1098	else	1238	*(below ? &below->above : &ms.bot) = above;
1099	SET_MAP_TOP (m, x, y, op->below); /* we were top, set new top */
1100		1239
1101	/* Relink the object below us, if there is one */	1240	above = 0;
1102	if (op->below)	1241	below = 0;
1103	op->below->above = op->above;	1242
1104	else	1243	ms.invalidate ();
		1244
		1245	if (map->in_memory == MAP_SAVING)
		1246	return;
		1247
		1248	int check_walk_off = !flag [FLAG_NO_APPLY];
		1249
		1250	if (object *pl = ms.player ())
1105	{	1251	{
1106	/* Nothing below, which means we need to relink map object for this space	1252	if (pl->container_ () == this)
1107	* use translated coordinates in case some oddness with map tiling is	1253	/* If a container that the player is currently using somehow gets
1108	* evident	1254	* removed (most likely destroyed), update the player view
		1255	* appropriately.
1109	*/	1256	*/
1110	if (GET_MAP_OB (m, x, y) != op)	1257	pl->close_container ();
1111	{
1112	char *dump = dump_object (op);
1113	LOG (llevError,
1114	"remove_ob: GET_MAP_OB does not return object to be removed even though it appears to be on the bottom?\n%s\n", dump);
1115	free (dump);
1116	dump = dump_object (GET_MAP_OB (m, x, y));
1117	LOG (llevError, "%s\n", dump);
1118	free (dump);
1119	}
1120		1258
1121	SET_MAP_OB (m, x, y, op->above); /* goes on above it. */	1259	//TODO: the floorbox prev/next might need updating
		1260	//esrv_del_item (pl->contr, count);
		1261	//TODO: update floorbox to preserve ordering
		1262	if (pl->contr->ns)
		1263	pl->contr->ns->floorbox_update ();
1122	}	1264	}
1123		1265
1124	op->above = 0;	1266	if (check_walk_off)
1125	op->below = 0;	1267	for (object *above, *tmp = ms.bot; tmp; tmp = above)
1126
1127	if (op->map->in_memory == MAP_SAVING)
1128	return;
1129
1130	check_walk_off = !QUERY_FLAG (op, FLAG_NO_APPLY);
1131
1132	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)
1133	{	1268	{
		1269	above = tmp->above;
		1270
1134	/* No point updating the players look faces if he is the object	1271	/* No point updating the players look faces if he is the object
1135	* being removed.	1272	* being removed.
1136	*/
1137
1138	if (tmp->type == PLAYER && tmp != op)
1139	{
1140	/* If a container that the player is currently using somehow gets
1141	* removed (most likely destroyed), update the player view
1142	* appropriately.
1143	*/	1273	*/
1144	if (tmp->container == op)
1145	{
1146	CLEAR_FLAG (op, FLAG_APPLIED);
1147	tmp->container = NULL;
1148	}
1149		1274
1150	tmp->contr->socket.update_look = 1;
1151	}
1152
1153	/* See if player moving off should effect something */	1275	/* See if object moving off should effect something */
1154	if (check_walk_off
1155	&& ((op->move_type & tmp->move_off)	1276	if ((move_type & tmp->move_off)
1156	&& (op->move_type & ~tmp->move_off & ~tmp->move_block) == 0))	1277	&& (move_type & ~tmp->move_off & ~tmp->move_block) == 0)
1157	{
1158	move_apply (tmp, op, NULL);	1278	move_apply (tmp, this, 0);
1159
1160	if (op->destroyed ())
1161	LOG (llevError, "BUG: remove_ob(): name %s, destroyed leaving object\n", tmp->debug_desc ());
1162	}	1279	}
1163		1280
1164	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */	1281	if (affects_los ())
1165
1166	if (tmp->above == tmp)
1167	tmp->above = NULL;
1168
1169	last = tmp;
1170	}
1171
1172	/* last == NULL of there are no objects on this space */
1173	if (last == NULL)
1174	{
1175	/* set P_NEED_UPDATE, otherwise update_position will complain. In theory,
1176	* we could preserve the flags (GET_MAP_FLAGS), but update_position figures
1177	* those out anyways, and if there are any flags set right now, they won't
1178	* be correct anyways.
1179	*/
1180	SET_MAP_FLAGS (op->map, op->x, op->y, P_NEED_UPDATE);
1181	update_position (op->map, op->x, op->y);
1182	}
1183	else
1184	update_object (last, UP_OBJ_REMOVE);
1185
1186	if (QUERY_FLAG (op, FLAG_BLOCKSVIEW) || (op->glow_radius != 0))
1187	update_all_los (op->map, op->x, op->y);	1282	update_all_los (map, x, y);
1188	}	1283	}
1189	}	1284	}
1190		1285
1191	/*	1286	/*
1192	* merge_ob(op,top):	1287	* merge_ob(op,top):
…		…
1200	merge_ob (object *op, object *top)	1295	merge_ob (object *op, object *top)
1201	{	1296	{
1202	if (!op->nrof)	1297	if (!op->nrof)
1203	return 0;	1298	return 0;
1204		1299
1205	if (top == NULL)	1300	if (!top)
1206	for (top = op; top != NULL && top->above != NULL; top = top->above);	1301	for (top = op; top && top->above; top = top->above)
		1302	;
1207		1303
1208	for (; top != NULL; top = top->below)	1304	for (; top; top = top->below)
1209	{	1305	if (object::can_merge (op, top))
1210	if (top == op)
1211	continue;
1212	if (CAN_MERGE (op, top))
1213	{	1306	{
1214	top->nrof += op->nrof;	1307	top->nrof += op->nrof;
1215		1308
1216	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/	1309	if (object *pl = top->visible_to ())
1217	op->weight = 0; /* Don't want any adjustements now */	1310	esrv_update_item (UPD_NROF, pl, top);
1218	remove_ob (op);	1311
1219	free_object (op);	1312	op->weight = 0; // cancel the addition above
		1313	op->carrying = 0; // must be 0 already
		1314
		1315	op->destroy ();
		1316
1220	return top;	1317	return top;
1221	}	1318	}
1222	}
1223		1319
1224	return 0;	1320	return 0;
1225	}	1321	}
1226		1322
		1323	void
		1324	object::expand_tail ()
		1325	{
		1326	if (more)
		1327	return;
		1328
		1329	object *prev = this;
		1330
		1331	for (archetype *at = (archetype *)arch->more; at; at = (archetype *)at->more)
		1332	{
		1333	object *op = at->instance ();
		1334
		1335	op->name = name;
		1336	op->name_pl = name_pl;
		1337	op->title = title;
		1338
		1339	op->head = this;
		1340	prev->more = op;
		1341
		1342	prev = op;
		1343	}
		1344	}
		1345
1227	/*	1346	/*
1228	* same as insert_ob_in_map except it handle separate coordinates and do a clean	1347	* same as insert_ob_in_map except it handles separate coordinates and does a clean
1229	* job preparing multi-part monsters	1348	* job preparing multi-part monsters.
1230	*/	1349	*/
1231	object *	1350	object *
1232	insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)	1351	insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)
1233	{	1352	{
1234	object *tmp;	1353	op->remove ();
1235		1354
1236	if (op->head)
1237	op = op->head;
1238
1239	for (tmp = op; tmp; tmp = tmp->more)	1355	for (object *tmp = op->head_ (); tmp; tmp = tmp->more)
1240	{	1356	{
1241	tmp->x = x + tmp->arch->clone.x;	1357	tmp->x = x + tmp->arch->x;
1242	tmp->y = y + tmp->arch->clone.y;	1358	tmp->y = y + tmp->arch->y;
1243	}	1359	}
1244		1360
1245	return insert_ob_in_map (op, m, originator, flag);	1361	return insert_ob_in_map (op, m, originator, flag);
1246	}	1362	}
1247		1363
…		…
1260	* Passing 0 for flag gives proper default values, so flag really only needs	1376	* Passing 0 for flag gives proper default values, so flag really only needs
1261	* to be set if special handling is needed.	1377	* to be set if special handling is needed.
1262	*	1378	*
1263	* Return value:	1379	* Return value:
1264	* new object if 'op' was merged with other object	1380	* new object if 'op' was merged with other object
1265	* NULL if 'op' was destroyed	1381	* NULL if there was an error (destroyed, blocked etc.)
1266	* just 'op' otherwise	1382	* just 'op' otherwise
1267	*/	1383	*/
1268
1269	object *	1384	object *
1270	insert_ob_in_map (object *op, maptile *m, object *originator, int flag)	1385	insert_ob_in_map (object *op, maptile *m, object *originator, int flag)
1271	{	1386	{
1272	object *tmp, *top, *floor = NULL;	1387	op->remove ();
1273	sint16 x, y;
1274		1388
1275	if (QUERY_FLAG (op, FLAG_FREED))	1389	if (m == &freed_map)//D TODO: remove soon
1276	{	1390	{//D
1277	LOG (llevError, "Trying to insert freed object!\n");	1391	LOG (llevError | logBacktrace, "tries to insret object on freed objects map: %s", op->debug_desc ());//D
1278	return NULL;
1279	}	1392	}//D
1280
1281	if (m == NULL)
1282	{
1283	char *dump = dump_object (op);
1284	LOG (llevError, "Trying to insert in null-map!\n%s\n", dump);
1285	free (dump);
1286	return op;
1287	}
1288
1289	if (out_of_map (m, op->x, op->y))
1290	{
1291	char *dump = dump_object (op);
1292	LOG (llevError, "Trying to insert object outside the map.\n%s\n", dump);
1293	#ifdef MANY_CORES
1294	/* Better to catch this here, as otherwise the next use of this object
1295	* is likely to cause a crash. Better to find out where it is getting
1296	* improperly inserted.
1297	*/
1298	abort ();
1299	#endif
1300	free (dump);
1301	return op;
1302	}
1303
1304	if (!QUERY_FLAG (op, FLAG_REMOVED))
1305	{
1306	char *dump = dump_object (op);
1307	LOG (llevError, "Trying to insert (map) inserted object.\n%s\n", dump);
1308	free (dump);
1309	return op;
1310	}
1311
1312	if (op->more != NULL)
1313	{
1314	/* The part may be on a different map. */
1315
1316	object *more = op->more;
1317
1318	/* We really need the caller to normalize coordinates - if
1319	* we set the map, that doesn't work if the location is within
1320	* a map and this is straddling an edge. So only if coordinate
1321	* is clear wrong do we normalize it.
1322	*/
1323	if (OUT_OF_REAL_MAP (more->map, more->x, more->y))
1324	more->map = get_map_from_coord (m, &more->x, &more->y);
1325	else if (!more->map)
1326	{
1327	/* For backwards compatibility - when not dealing with tiled maps,
1328	* more->map should always point to the parent.
1329	*/
1330	more->map = m;
1331	}
1332
1333	if (insert_ob_in_map (more, more->map, originator, flag) == NULL)
1334	{
1335	if (!op->head)
1336	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");
1337
1338	return NULL;
1339	}
1340	}
1341
1342	CLEAR_FLAG (op, FLAG_REMOVED);
1343		1393
1344	/* Ideally, the caller figures this out. However, it complicates a lot	1394	/* Ideally, the caller figures this out. However, it complicates a lot
1345	* of areas of callers (eg, anything that uses find_free_spot would now	1395	* of areas of callers (eg, anything that uses find_free_spot would now
1346	* need extra work	1396	* need extra work
1347	*/	1397	*/
1348	op->map = get_map_from_coord (m, &op->x, &op->y);	1398	maptile *newmap = m;
1349	x = op->x;	1399	if (!xy_normalise (newmap, op->x, op->y))
1350	y = op->y;	1400	{
		1401	op->head_ ()->destroy ();// remove head_ once all tail object destroyers found
		1402	return 0;
		1403	}
		1404
		1405	if (object *more = op->more)
		1406	if (!insert_ob_in_map (more, m, originator, flag))
		1407	return 0;
		1408
		1409	op->flag [FLAG_REMOVED] = false;
		1410	op->env = 0;
		1411	op->map = newmap;
		1412
		1413	mapspace &ms = op->ms ();
1351		1414
1352	/* this has to be done after we translate the coordinates.	1415	/* this has to be done after we translate the coordinates.
1353	*/	1416	*/
1354	if (op->nrof && !(flag & INS_NO_MERGE))	1417	if (op->nrof && !(flag & INS_NO_MERGE))
1355	for (tmp = GET_MAP_OB (op->map, x, y); tmp != NULL; tmp = tmp->above)	1418	for (object *tmp = ms.bot; tmp; tmp = tmp->above)
1356	if (CAN_MERGE (op, tmp))	1419	if (object::can_merge (op, tmp))
1357	{	1420	{
		1421	// TODO: we actually want to update tmp, not op,
		1422	// but some caller surely breaks when we return tmp
		1423	// from here :/
1358	op->nrof += tmp->nrof;	1424	op->nrof += tmp->nrof;
1359	remove_ob (tmp);	1425	tmp->destroy ();
1360	free_object (tmp);
1361	}	1426	}
1362		1427
1363	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */	1428	op->clr_flag (FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */
1364	CLEAR_FLAG (op, FLAG_INV_LOCKED);	1429	op->clr_flag (FLAG_INV_LOCKED);
1365		1430
1366	if (!QUERY_FLAG (op, FLAG_ALIVE))	1431	if (!op->flag [FLAG_ALIVE])
1367	CLEAR_FLAG (op, FLAG_NO_STEAL);	1432	op->clr_flag (FLAG_NO_STEAL);
1368		1433
1369	if (flag & INS_BELOW_ORIGINATOR)	1434	if (flag & INS_BELOW_ORIGINATOR)
1370	{	1435	{
1371	if (originator->map != op->map || originator->x != op->x || originator->y != op->y)	1436	if (originator->map != op->map || originator->x != op->x || originator->y != op->y)
1372	{	1437	{
1373	LOG (llevError, "insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");	1438	LOG (llevError, "insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");
1374	abort ();	1439	abort ();
1375	}	1440	}
1376		1441
		1442	if (!originator->is_on_map ())
		1443	{
		1444	LOG (llevError, "insert_ob_in_map(%s) called with INS_BELOW_ORIGINATOR when originator '%s' not on map",
		1445	op->debug_desc (), originator->debug_desc ());
		1446	abort ();
		1447	}
		1448
1377	op->above = originator;	1449	op->above = originator;
1378	op->below = originator->below;	1450	op->below = originator->below;
1379
1380	if (op->below)
1381	op->below->above = op;
1382	else
1383	SET_MAP_OB (op->map, op->x, op->y, op);
1384
1385	/* since *below* originator, no need to update top */
1386	originator->below = op;	1451	originator->below = op;
		1452
		1453	*(op->below ? &op->below->above : &ms.bot) = op;
1387	}	1454	}
1388	else	1455	else
1389	{	1456	{
		1457	object *floor = 0;
		1458	object *top = ms.top;
		1459
1390	/* If there are other objects, then */	1460	/* If there are other objects, then */
1391	if ((!(flag & INS_MAP_LOAD)) && ((top = GET_MAP_OB (op->map, op->x, op->y)) != NULL))	1461	if (top)
1392	{	1462	{
1393	object *last = NULL;
1394
1395	/*	1463	/*
1396	* If there are multiple objects on this space, we do some trickier handling.	1464	* If there are multiple objects on this space, we do some trickier handling.
1397	* We've already dealt with merging if appropriate.	1465	* We've already dealt with merging if appropriate.
1398	* Generally, we want to put the new object on top. But if	1466	* Generally, we want to put the new object on top. But if
1399	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last	1467	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last
…		…
1402	* once we get to them. This reduces the need to traverse over all of	1470	* once we get to them. This reduces the need to traverse over all of
1403	* them when adding another one - this saves quite a bit of cpu time	1471	* them when adding another one - this saves quite a bit of cpu time
1404	* when lots of spells are cast in one area. Currently, it is presumed	1472	* when lots of spells are cast in one area. Currently, it is presumed
1405	* that flying non pickable objects are spell objects.	1473	* that flying non pickable objects are spell objects.
1406	*/	1474	*/
1407		1475	for (object *tmp = ms.bot; tmp; tmp = tmp->above)
1408	while (top != NULL)
1409	{	1476	{
1410	if (QUERY_FLAG (top, FLAG_IS_FLOOR) || QUERY_FLAG (top, FLAG_OVERLAY_FLOOR))	1477	if (tmp->flag [FLAG_IS_FLOOR] || tmp->flag [FLAG_OVERLAY_FLOOR])
1411	floor = top;	1478	floor = tmp;
1412		1479
1413	if (QUERY_FLAG (top, FLAG_NO_PICK) && (top->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (top, FLAG_IS_FLOOR))	1480	if (tmp->flag [FLAG_NO_PICK] && (tmp->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !tmp->flag [FLAG_IS_FLOOR])
1414	{	1481	{
1415	/* We insert above top, so we want this object below this */	1482	/* We insert above top, so we want this object below this */
1416	top = top->below;	1483	top = tmp->below;
1417	break;	1484	break;
1418	}	1485	}
1419		1486
1420	last = top;
1421	top = top->above;	1487	top = tmp;
1422	}	1488	}
1423
1424	/* Don't want top to be NULL, so set it to the last valid object */
1425	top = last;
1426		1489
1427	/* We let update_position deal with figuring out what the space	1490	/* We let update_position deal with figuring out what the space
1428	* looks like instead of lots of conditions here.	1491	* looks like instead of lots of conditions here.
1429	* makes things faster, and effectively the same result.	1492	* makes things faster, and effectively the same result.
1430	*/	1493	*/
1431		1494
1432	/* Have object 'fall below' other objects that block view.	1495	/* Have object 'fall below' other objects that block view.
1433	* Unless those objects are exits, type 66	1496	* Unless those objects are exits.
1434	* If INS_ON_TOP is used, don't do this processing	1497	* If INS_ON_TOP is used, don't do this processing
1435	* Need to find the object that in fact blocks view, otherwise	1498	* Need to find the object that in fact blocks view, otherwise
1436	* stacking is a bit odd.	1499	* stacking is a bit odd.
1437	*/	1500	*/
1438	if (!(flag & INS_ON_TOP) &&	1501	if (!(flag & INS_ON_TOP)
1439	(get_map_flags (op->map, NULL, op->x, op->y, NULL, NULL) & P_BLOCKSVIEW) && (op->face && !op->face->visibility))	1502	&& ms.flags () & P_BLOCKSVIEW
		1503	&& (op->face && !faces [op->face].visibility))
1440	{	1504	{
		1505	object *last;
		1506
1441	for (last = top; last != floor; last = last->below)	1507	for (last = top; last != floor; last = last->below)
1442	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))	1508	if (last->flag [FLAG_BLOCKSVIEW] && (last->type != EXIT))
1443	break;	1509	break;
		1510
1444	/* Check to see if we found the object that blocks view,	1511	/* Check to see if we found the object that blocks view,
1445	* and make sure we have a below pointer for it so that	1512	* and make sure we have a below pointer for it so that
1446	* we can get inserted below this one, which requires we	1513	* we can get inserted below this one, which requires we
1447	* set top to the object below us.	1514	* set top to the object below us.
1448	*/	1515	*/
1449	if (last && last->below && last != floor)	1516	if (last && last->below && last != floor)
1450	top = last->below;	1517	top = last->below;
1451	}	1518	}
1452	} /* If objects on this space */	1519	} /* If objects on this space */
1453		1520
1454	if (flag & INS_MAP_LOAD)
1455	top = GET_MAP_TOP (op->map, op->x, op->y);
1456
1457	if (flag & INS_ABOVE_FLOOR_ONLY)	1521	if (flag & INS_ABOVE_FLOOR_ONLY)
1458	top = floor;	1522	top = floor;
1459		1523
1460	/* Top is the object that our object (op) is going to get inserted above.	1524	// insert object above top, or bottom-most if top = 0
1461	*/
1462
1463	/* First object on this space */
1464	if (!top)	1525	if (!top)
1465	{	1526	{
1466	op->above = GET_MAP_OB (op->map, op->x, op->y);
1467
1468	if (op->above)
1469	op->above->below = op;
1470
1471	op->below = NULL;	1527	op->below = 0;
1472	SET_MAP_OB (op->map, op->x, op->y, op);	1528	op->above = ms.bot;
		1529	ms.bot = op;
		1530
		1531	*(op->above ? &op->above->below : &ms.top) = op;
1473	}	1532	}
1474	else	1533	else
1475	{ /* get inserted into the stack above top */	1534	{
1476	op->above = top->above;	1535	op->above = top->above;
1477
1478	if (op->above)
1479	op->above->below = op;	1536	top->above = op;
1480		1537
1481	op->below = top;	1538	op->below = top;
1482	top->above = op;	1539	*(op->above ? &op->above->below : &ms.top) = op;
1483	}	1540	}
		1541	}
1484		1542
1485	if (op->above == NULL)	1543	if (op->is_player ())
1486	SET_MAP_TOP (op->map, op->x, op->y, op);	1544	{
1487	} /* else not INS_BELOW_ORIGINATOR */
1488
1489	if (op->type == PLAYER)
1490	op->contr->do_los = 1;	1545	op->contr->do_los = 1;
		1546	++op->map->players;
		1547	op->map->touch ();
		1548	}
1491		1549
1492	/* If we have a floor, we know the player, if any, will be above	1550	op->map->dirty = true;
1493	* it, so save a few ticks and start from there.	1551
1494	*/	1552	if (object *pl = ms.player ())
1495	if (!(flag & INS_MAP_LOAD))	1553	//TODO: the floorbox prev/next might need updating
1496	for (tmp = floor ? floor : GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)	1554	//esrv_send_item (pl, op);
1497	if (tmp->type == PLAYER)	1555	//TODO: update floorbox to preserve ordering
1498	tmp->contr->socket.update_look = 1;	1556	if (pl->contr->ns)
		1557	pl->contr->ns->floorbox_update ();
1499		1558
1500	/* If this object glows, it may affect lighting conditions that are	1559	/* If this object glows, it may affect lighting conditions that are
1501	* visible to others on this map. But update_all_los is really	1560	* visible to others on this map. But update_all_los is really
1502	* an inefficient way to do this, as it means los for all players	1561	* an inefficient way to do this, as it means los for all players
1503	* on the map will get recalculated. The players could very well	1562	* on the map will get recalculated. The players could very well
1504	* be far away from this change and not affected in any way -	1563	* be far away from this change and not affected in any way -
1505	* this should get redone to only look for players within range,	1564	* this should get redone to only look for players within range,
1506	* or just updating the P_NEED_UPDATE for spaces within this area	1565	* or just updating the P_UPTODATE for spaces within this area
1507	* of effect may be sufficient.	1566	* of effect may be sufficient.
1508	*/	1567	*/
1509	if (MAP_DARKNESS (op->map) && (op->glow_radius != 0))	1568	if (op->affects_los ())
		1569	{
		1570	op->ms ().invalidate ();
1510	update_all_los (op->map, op->x, op->y);	1571	update_all_los (op->map, op->x, op->y);
		1572	}
1511		1573
1512	/* updates flags (blocked, alive, no magic, etc) for this map space */	1574	/* updates flags (blocked, alive, no magic, etc) for this map space */
1513	update_object (op, UP_OBJ_INSERT);	1575	update_object (op, UP_OBJ_INSERT);
1514		1576
		1577	INVOKE_OBJECT (INSERT, op);
		1578
1515	/* Don't know if moving this to the end will break anything. However,	1579	/* Don't know if moving this to the end will break anything. However,
1516	* we want to have update_look set above before calling this.	1580	* we want to have floorbox_update called before calling this.
1517	*	1581	*
1518	* check_move_on() must be after this because code called from	1582	* check_move_on() must be after this because code called from
1519	* check_move_on() depends on correct map flags (so functions like	1583	* check_move_on() depends on correct map flags (so functions like
1520	* blocked() and wall() work properly), and these flags are updated by	1584	* blocked() and wall() work properly), and these flags are updated by
1521	* update_object().	1585	* update_object().
1522	*/	1586	*/
1523		1587
1524	/* if this is not the head or flag has been passed, don't check walk on status */	1588	/* if this is not the head or flag has been passed, don't check walk on status */
1525	if (!(flag & INS_NO_WALK_ON) && !op->head)	1589	if (!(flag & INS_NO_WALK_ON) && op->is_head ())
1526	{	1590	{
1527	if (check_move_on (op, originator))	1591	if (check_move_on (op, originator, flag))
1528	return NULL;	1592	return 0;
1529		1593
1530	/* If we are a multi part object, lets work our way through the check	1594	/* If we are a multi part object, let's work our way through the check
1531	* walk on's.	1595	* walk on's.
1532	*/	1596	*/
1533	for (tmp = op->more; tmp != NULL; tmp = tmp->more)	1597	for (object *tmp = op->more; tmp; tmp = tmp->more)
1534	if (check_move_on (tmp, originator))	1598	if (check_move_on (tmp, originator, flag))
1535	return NULL;	1599	return 0;
1536	}	1600	}
1537		1601
1538	return op;	1602	return op;
1539	}	1603	}
1540		1604
1541	/* this function inserts an object in the map, but if it	1605	/* this function inserts an object in the map, but if it
1542	* finds an object of its own type, it'll remove that one first.	1606	* finds an object of its own type, it'll remove that one first.
1543	* op is the object to insert it under: supplies x and the map.	1607	* op is the object to insert it under: supplies x and the map.
1544	*/	1608	*/
1545	void	1609	void
1546	replace_insert_ob_in_map (const char *arch_string, object *op)	1610	replace_insert_ob_in_map (shstr_tmp archname, object *op)
1547	{	1611	{
1548	object *
1549	tmp;
1550	object *
1551	tmp1;
1552
1553	/* first search for itself and remove any old instances */	1612	/* first search for itself and remove any old instances */
1554		1613
1555	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)	1614	for (object *tmp = op->ms ().bot; tmp; tmp = tmp->above)
1556	{
1557	if (!strcmp (tmp->arch->name, arch_string)) /* same archetype */	1615	if (tmp->arch->archname == archname) /* same archetype */
1558	{	1616	tmp->destroy ();
1559	remove_ob (tmp);
1560	free_object (tmp);
1561	}
1562	}
1563		1617
1564	tmp1 = arch_to_object (archetype::find (arch_string));	1618	object *tmp = archetype::find (archname)->instance ();
1565		1619
1566	tmp1->x = op->x;	1620	tmp->x = op->x;
1567	tmp1->y = op->y;	1621	tmp->y = op->y;
		1622
1568	insert_ob_in_map (tmp1, op->map, op, 0);	1623	insert_ob_in_map (tmp, op->map, op, 0);
1569	}	1624	}
1570
1571	/*
1572	* get_split_ob(ob,nr) splits up ob into two parts. The part which
1573	* is returned contains nr objects, and the remaining parts contains
1574	* the rest (or is removed and freed if that number is 0).
1575	* On failure, NULL is returned, and the reason put into the
1576	* global static errmsg array.
1577	*/
1578		1625
1579	object *	1626	object *
1580	get_split_ob (object *orig_ob, uint32 nr)	1627	object::insert_at (object *where, object *originator, int flags)
1581	{	1628	{
1582	object *	1629	if (where->env)
1583	newob;	1630	return where->env->insert (this);
1584	int	1631	else
1585	is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);	1632	return where->map->insert (this, where->x, where->y, originator, flags);
1586
1587	if (orig_ob->nrof < nr)
1588	{
1589	sprintf (errmsg, "There are only %d %ss.", orig_ob->nrof ? orig_ob->nrof : 1, &orig_ob->name);
1590	return NULL;
1591	}
1592
1593	newob = object_create_clone (orig_ob);
1594
1595	if ((orig_ob->nrof -= nr) < 1)
1596	{
1597	if (!is_removed)
1598	remove_ob (orig_ob);
1599	free_object2 (orig_ob, 1);
1600	}
1601	else if (!is_removed)
1602	{
1603	if (orig_ob->env != NULL)
1604	sub_weight (orig_ob->env, orig_ob->weight * nr);
1605	if (orig_ob->env == NULL && orig_ob->map->in_memory != MAP_IN_MEMORY)
1606	{
1607	strcpy (errmsg, "Tried to split object whose map is not in memory.");
1608	LOG (llevDebug, "Error, Tried to split object whose map is not in memory.\n");
1609	return NULL;
1610	}
1611	}
1612
1613	newob->nrof = nr;
1614
1615	return newob;
1616	}	1633	}
1617		1634
		1635	// check whether we can put this into the map, respect max_volume, max_items
		1636	bool
		1637	object::can_drop_at (maptile *m, int x, int y, object *originator)
		1638	{
		1639	mapspace &ms = m->at (x, y);
		1640
		1641	int items = ms.items ();
		1642
		1643	if (!items // testing !items ensures we can drop at least one item
		1644	|| (items < m->max_items
		1645	&& ms.volume () < m->max_volume))
		1646	return true;
		1647
		1648	if (originator && originator->is_player ())
		1649	originator->contr->failmsgf (
		1650	"No matter how hard you try, you just cannot put the %s here H<Try to remove some items from the floor first.>",
		1651	query_name ()
		1652	);
		1653
		1654	return false;
		1655	}
		1656
1618	/*	1657	/*
1619	* decrease_ob_nr(object, number) decreases a specified number from	1658	* decrease(object, number) decreases a specified number from
1620	* the amount of an object. If the amount reaches 0, the object	1659	* the amount of an object. If the amount reaches 0, the object
1621	* is subsequently removed and freed.	1660	* is subsequently removed and freed.
1622	*	1661	*
1623	* Return value: 'op' if something is left, NULL if the amount reached 0	1662	* Return value: 'op' if something is left, NULL if the amount reached 0
1624	*/	1663	*/
		1664	bool
		1665	object::decrease (sint32 nr)
		1666	{
		1667	if (!nr)
		1668	return true;
1625		1669
		1670	nr = min (nr, nrof);
		1671
		1672	if (nrof > nr)
		1673	{
		1674	sint64 oweight = total_weight ();
		1675
		1676	nrof -= nr;
		1677
		1678	if (object *pl = visible_to ())
		1679	esrv_update_item (UPD_NROF, pl, this);
		1680
		1681	adjust_weight (env, oweight, total_weight ());
		1682
		1683	return true;
		1684	}
		1685	else
		1686	{
		1687	destroy ();
		1688	return false;
		1689	}
		1690	}
		1691
		1692	/*
		1693	* split(ob,nr) splits up ob into two parts. The part which
		1694	* is returned contains nr objects, and the remaining parts contains
		1695	* the rest (or is removed and returned if that number is 0).
		1696	* On failure, NULL is returned.
		1697	*/
1626	object *	1698	object *
1627	decrease_ob_nr (object *op, uint32 i)	1699	object::split (sint32 nr)
1628	{	1700	{
1629	object *tmp;	1701	int have = number_of ();
1630	player *pl;
1631		1702
1632	if (i == 0) /* objects with op->nrof require this check */	1703	if (have < nr)
1633	return op;	1704	return 0;
1634		1705	else if (have == nr)
1635	if (i > op->nrof)
1636	i = op->nrof;
1637
1638	if (QUERY_FLAG (op, FLAG_REMOVED))
1639	op->nrof -= i;
1640	else if (op->env != NULL)
1641	{	1706	{
1642	/* is this object in the players inventory, or sub container
1643	* therein?
1644	*/
1645	tmp = is_player_inv (op->env);
1646	/* nope. Is this a container the player has opened?
1647	* If so, set tmp to that player.
1648	* IMO, searching through all the players will mostly
1649	* likely be quicker than following op->env to the map,
1650	* and then searching the map for a player.
1651	*/
1652	if (!tmp)
1653	{
1654	for (pl = first_player; pl; pl = pl->next)
1655	if (pl->ob->container == op->env)
1656	break;
1657	if (pl)
1658	tmp = pl->ob;
1659	else
1660	tmp = NULL;
1661	}
1662
1663	if (i < op->nrof)
1664	{
1665	sub_weight (op->env, op->weight * i);
1666	op->nrof -= i;
1667	if (tmp)
1668	{
1669	esrv_send_item (tmp, op);
1670	}
1671	}
1672	else
1673	{
1674	remove_ob (op);	1707	remove ();
1675	op->nrof = 0;	1708	return this;
1676	if (tmp)
1677	{
1678	esrv_del_item (tmp->contr, op->count);
1679	}
1680	}
1681	}	1709	}
1682	else	1710	else
1683	{	1711	{
1684	object *above = op->above;	1712	decrease (nr);
1685		1713
1686	if (i < op->nrof)	1714	object *op = deep_clone ();
1687	op->nrof -= i;	1715	op->nrof = nr;
1688	else
1689	{
1690	remove_ob (op);
1691	op->nrof = 0;
1692	}
1693
1694	/* Since we just removed op, op->above is null */
1695	for (tmp = above; tmp != NULL; tmp = tmp->above)
1696	if (tmp->type == PLAYER)
1697	{
1698	if (op->nrof)
1699	esrv_send_item (tmp, op);
1700	else
1701	esrv_del_item (tmp->contr, op->count);
1702	}
1703	}
1704
1705	if (op->nrof)
1706	return op;	1716	return op;
1707	else
1708	{	1717	}
1709	free_object (op);
1710	return NULL;
1711	}
1712	}	1718	}
1713
1714	/*
1715	* add_weight(object, weight) adds the specified weight to an object,
1716	* and also updates how much the environment(s) is/are carrying.
1717	*/
1718
1719	void
1720	add_weight (object *op, signed long weight)
1721	{
1722	while (op != NULL)
1723	{
1724	if (op->type == CONTAINER)
1725	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1726
1727	op->carrying += weight;
1728	op = op->env;
1729	}
1730	}
1731
1732	/*
1733	* insert_ob_in_ob(op,environment):
1734	* This function inserts the object op in the linked list
1735	* inside the object environment.
1736	*
1737	* Eneq(@csd.uu.se): Altered insert_ob_in_ob to make things picked up enter
1738	* the inventory at the last position or next to other objects of the same
1739	* type.
1740	* Frank: Now sorted by type, archetype and magic!
1741	*
1742	* The function returns now pointer to inserted item, and return value can
1743	* be != op, if items are merged. -Tero
1744	*/
1745		1719
1746	object *	1720	object *
1747	insert_ob_in_ob (object *op, object *where)	1721	insert_ob_in_ob (object *op, object *where)
1748	{	1722	{
1749	object *	1723	if (!where)
1750	tmp, *
1751	otmp;
1752
1753	if (!QUERY_FLAG (op, FLAG_REMOVED))
1754	{
1755	char *dump = dump_object (op);
1756	LOG (llevError, "Trying to insert (ob) inserted object.\n%s\n", dump);
1757	free (dump);
1758	return op;
1759	}
1760
1761	if (where == NULL)
1762	{	1724	{
1763	char *dump = dump_object (op);	1725	char *dump = dump_object (op);
1764	LOG (llevError, "Trying to put object in NULL.\n%s\n", dump);	1726	LOG (llevError, "Trying to put object in NULL.\n%s\n", dump);
1765	free (dump);	1727	free (dump);
1766	return op;	1728	return op;
1767	}	1729	}
1768		1730
1769	if (where->head)	1731	if (where->head_ () != where)
1770	{	1732	{
1771	LOG (llevDebug, "Warning: Tried to insert object wrong part of multipart object.\n");	1733	LOG (llevError | logBacktrace, "Warning: Tried to insert object into wrong part of multipart object.\n");
1772	where = where->head;	1734	where = where->head;
1773	}	1735	}
1774		1736
		1737	return where->insert (op);
		1738	}
		1739
		1740	/*
		1741	* env->insert (op)
		1742	* This function inserts the object op in the linked list
		1743	* inside the object environment.
		1744	*
		1745	* The function returns now pointer to inserted item, and return value can
		1746	* be != op, if items are merged. -Tero
		1747	*/
		1748	object *
		1749	object::insert (object *op)
		1750	{
1775	if (op->more)	1751	if (op->more)
1776	{	1752	{
1777	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);	1753	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);
1778	return op;	1754	return op;
1779	}	1755	}
1780		1756
1781	CLEAR_FLAG (op, FLAG_OBJ_ORIGINAL);	1757	op->remove ();
1782	CLEAR_FLAG (op, FLAG_REMOVED);	1758
		1759	op->flag [FLAG_OBJ_ORIGINAL] = 0;
		1760
1783	if (op->nrof)	1761	if (op->nrof)
1784	{
1785	for (tmp = where->inv; tmp != NULL; tmp = tmp->below)	1762	for (object *tmp = inv; tmp; tmp = tmp->below)
1786	if (CAN_MERGE (tmp, op))	1763	if (object::can_merge (tmp, op))
1787	{	1764	{
1788	/* return the original object and remove inserted object	1765	/* return the original object and remove inserted object
1789	(client needs the original object) */	1766	(client prefers the original object) */
		1767
		1768	// carring must be 0 for mergable objects
		1769	sint64 oweight = tmp->weight * tmp->nrof;
		1770
1790	tmp->nrof += op->nrof;	1771	tmp->nrof += op->nrof;
1791	/* Weight handling gets pretty funky. Since we are adding to	1772
1792	* tmp->nrof, we need to increase the weight.	1773	if (object *pl = tmp->visible_to ())
1793	*/	1774	esrv_update_item (UPD_NROF, pl, tmp);
		1775
1794	add_weight (where, op->weight * op->nrof);	1776	adjust_weight (this, oweight, tmp->weight * tmp->nrof);
1795	SET_FLAG (op, FLAG_REMOVED);	1777
1796	free_object (op); /* free the inserted object */	1778	op->destroy ();
1797	op = tmp;	1779	op = tmp;
1798	remove_ob (op); /* and fix old object's links */	1780	goto inserted;
1799	CLEAR_FLAG (op, FLAG_REMOVED);
1800	break;
1801	}	1781	}
1802		1782
1803	/* I assume combined objects have no inventory	1783	op->owner = 0; // it's his/hers now. period.
1804	* We add the weight - this object could have just been removed
1805	* (if it was possible to merge). calling remove_ob will subtract
1806	* the weight, so we need to add it in again, since we actually do
1807	* the linking below
1808	*/
1809	add_weight (where, op->weight * op->nrof);
1810	}
1811	else
1812	add_weight (where, (op->weight + op->carrying));
1813
1814	otmp = is_player_inv (where);
1815	if (otmp && otmp->contr != NULL)
1816	{
1817	if (!QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1818	fix_player (otmp);
1819	}
1820
1821	op->map = NULL;	1784	op->map = 0;
1822	op->env = where;	1785	op->x = 0;
		1786	op->y = 0;
		1787
1823	op->above = NULL;	1788	op->above = 0;
1824	op->below = NULL;	1789	op->below = inv;
1825	op->x = 0, op->y = 0;	1790	op->env = this;
1826		1791
		1792	if (inv)
		1793	inv->above = op;
		1794
		1795	inv = op;
		1796
		1797	op->flag [FLAG_REMOVED] = 0;
		1798
		1799	if (object *pl = op->visible_to ())
		1800	esrv_send_item (pl, op);
		1801
		1802	adjust_weight (this, 0, op->total_weight ());
		1803
		1804	inserted:
1827	/* reset the light list and los of the players on the map */	1805	/* reset the light list and los of the players on the map */
1828	if ((op->glow_radius != 0) && where->map)	1806	if (op->glow_radius && is_on_map ())
1829	{
1830	#ifdef DEBUG_LIGHTS
1831	LOG (llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n", op->name);
1832	#endif /* DEBUG_LIGHTS */
1833	if (MAP_DARKNESS (where->map))
1834	update_all_los (where->map, where->x, where->y);
1835	}	1807	{
1836		1808	update_stats ();
1837	/* Client has no idea of ordering so lets not bother ordering it here.	1809	update_all_los (map, x, y);
1838	* It sure simplifies this function...
1839	*/
1840	if (where->inv == NULL)
1841	where->inv = op;
1842	else
1843	{	1810	}
1844	op->below = where->inv;	1811	else if (is_player ())
1845	op->below->above = op;	1812	// if this is a player's inventory, update stats
1846	where->inv = op;	1813	contr->queue_stats_update ();
1847	}	1814
		1815	INVOKE_OBJECT (INSERT, this);
		1816
1848	return op;	1817	return op;
1849	}	1818	}
1850		1819
1851	/*	1820	/*
1852	* Checks if any objects has a move_type that matches objects	1821	* Checks if any objects has a move_type that matches objects
…		…
1866	*	1835	*
1867	* MSW 2001-07-08: Check all objects on space, not just those below	1836	* MSW 2001-07-08: Check all objects on space, not just those below
1868	* object being inserted. insert_ob_in_map may not put new objects	1837	* object being inserted. insert_ob_in_map may not put new objects
1869	* on top.	1838	* on top.
1870	*/	1839	*/
1871
1872	int	1840	int
1873	check_move_on (object *op, object *originator)	1841	check_move_on (object *op, object *originator, int flags)
1874	{	1842	{
		1843	if (op->flag [FLAG_NO_APPLY])
		1844	return 0;
		1845
1875	object *tmp;	1846	object *tmp;
1876	maptile *m = op->map;	1847	maptile *m = op->map;
1877	int x = op->x, y = op->y;	1848	int x = op->x, y = op->y;
1878		1849
1879	MoveType move_on, move_slow, move_block;	1850	mapspace &ms = m->at (x, y);
1880		1851
1881	if (QUERY_FLAG (op, FLAG_NO_APPLY))	1852	ms.update ();
1882	return 0;
1883		1853
1884	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);	1854	MoveType move_on = ms.move_on;
1885	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);	1855	MoveType move_slow = ms.move_slow;
1886	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);	1856	MoveType move_block = ms.move_block;
1887		1857
1888	/* if nothing on this space will slow op down or be applied,	1858	/* if nothing on this space will slow op down or be applied,
1889	* no need to do checking below. have to make sure move_type	1859	* no need to do checking below. have to make sure move_type
1890	* is set, as lots of objects don't have it set - we treat that	1860	* is set, as lots of objects don't have it set - we treat that
1891	* as walking.	1861	* as walking.
…		…
1902	return 0;	1872	return 0;
1903		1873
1904	/* The objects have to be checked from top to bottom.	1874	/* The objects have to be checked from top to bottom.
1905	* Hence, we first go to the top:	1875	* Hence, we first go to the top:
1906	*/	1876	*/
1907		1877	for (object *next, *tmp = ms.top; tmp; tmp = next)
1908	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL && tmp->above != NULL; tmp = tmp->above)
1909	{
1910	/* Trim the search when we find the first other spell effect
1911	* this helps performance so that if a space has 50 spell objects,
1912	* we don't need to check all of them.
1913	*/
1914	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG (tmp, FLAG_NO_PICK))
1915	break;
1916	}	1878	{
		1879	next = tmp->below;
1917		1880
1918	for (; tmp; tmp = tmp->below)
1919	{
1920	if (tmp == op)	1881	if (tmp == op)
1921	continue; /* Can't apply yourself */	1882	continue; /* Can't apply yourself */
1922		1883
1923	/* Check to see if one of the movement types should be slowed down.	1884	/* Check to see if one of the movement types should be slowed down.
1924	* Second check makes sure that the movement types not being slowed	1885	* Second check makes sure that the movement types not being slowed
1925	* (~slow_move) is not blocked on this space - just because the	1886	* (~slow_move) is not blocked on this space - just because the
1926	* space doesn't slow down swimming (for example), if you can't actually	1887	* space doesn't slow down swimming (for example), if you can't actually
1927	* swim on that space, can't use it to avoid the penalty.	1888	* swim on that space, can't use it to avoid the penalty.
1928	*/	1889	*/
1929	if (!QUERY_FLAG (op, FLAG_WIZPASS))	1890	if (!op->flag [FLAG_WIZPASS])
1930	{	1891	{
1931	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||	1892	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||
1932	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))	1893	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))
1933	{	1894	{
1934
1935	float
1936	diff = tmp->move_slow_penalty * FABS (op->speed);	1895	float diff = tmp->move_slow_penalty * fabs (op->speed);
1937		1896
1938	if (op->type == PLAYER)	1897	if (op->is_player ())
1939	if ((QUERY_FLAG (tmp, FLAG_IS_HILLY) && find_skill_by_number (op, SK_CLIMBING)) ||	1898	if ((tmp->flag [FLAG_IS_HILLY ] && find_skill_by_number (op, SK_CLIMBING)) ||
1940	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))	1899	(tmp->flag [FLAG_IS_WOODED] && find_skill_by_number (op, SK_WOODSMAN)))
1941	diff /= 4.0;	1900	diff /= 4.0;
1942		1901
1943	op->speed_left -= diff;	1902	op->speed_left -= diff;
1944	}	1903	}
1945	}	1904	}
1946		1905
1947	/* Basically same logic as above, except now for actual apply. */	1906	/* Basically same logic as above, except now for actual apply. */
1948	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||	1907	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||
1949	((op->move_type & tmp->move_on) && (op->move_type & ~tmp->move_on & ~tmp->move_block) == 0))	1908	((op->move_type & tmp->move_on) && (op->move_type & ~tmp->move_on & ~tmp->move_block) == 0))
1950	{	1909	{
		1910	if ((flags & INS_NO_AUTO_EXIT)
		1911	&& (tmp->type == EXIT || tmp->type == TELEPORTER
		1912	|| tmp->type == HOLE || tmp->type == TRAPDOOR)) //TODO: temporary, fix exits instead
		1913	continue;
		1914
1951	move_apply (tmp, op, originator);	1915	move_apply (tmp, op, originator);
1952		1916
1953	if (op->destroyed ())	1917	if (op->destroyed ())
1954	return 1;	1918	return 1;
1955		1919
…		…
1968	/*	1932	/*
1969	* present_arch(arch, map, x, y) searches for any objects with	1933	* present_arch(arch, map, x, y) searches for any objects with
1970	* a matching archetype at the given map and coordinates.	1934	* a matching archetype at the given map and coordinates.
1971	* The first matching object is returned, or NULL if none.	1935	* The first matching object is returned, or NULL if none.
1972	*/	1936	*/
1973
1974	object *	1937	object *
1975	present_arch (const archetype *at, maptile *m, int x, int y)	1938	present_arch (const archetype *at, maptile *m, int x, int y)
1976	{	1939	{
1977	object *
1978	tmp;
1979
1980	if (m == NULL || out_of_map (m, x, y))	1940	if (!m || out_of_map (m, x, y))
1981	{	1941	{
1982	LOG (llevError, "Present_arch called outside map.\n");	1942	LOG (llevError, "Present_arch called outside map.\n");
1983	return NULL;	1943	return NULL;
1984	}	1944	}
1985	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)	1945
1986	if (tmp->arch == at)	1946	for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)
		1947	if (tmp->arch->archname == at->archname)
1987	return tmp;	1948	return tmp;
		1949
1988	return NULL;	1950	return NULL;
1989	}	1951	}
1990		1952
1991	/*	1953	/*
1992	* present(type, map, x, y) searches for any objects with	1954	* present(type, map, x, y) searches for any objects with
1993	* a matching type variable at the given map and coordinates.	1955	* a matching type variable at the given map and coordinates.
1994	* The first matching object is returned, or NULL if none.	1956	* The first matching object is returned, or NULL if none.
1995	*/	1957	*/
1996
1997	object *	1958	object *
1998	present (unsigned char type, maptile *m, int x, int y)	1959	present (unsigned char type, maptile *m, int x, int y)
1999	{	1960	{
2000	object *
2001	tmp;
2002
2003	if (out_of_map (m, x, y))	1961	if (out_of_map (m, x, y))
2004	{	1962	{
2005	LOG (llevError, "Present called outside map.\n");	1963	LOG (llevError, "Present called outside map.\n");
2006	return NULL;	1964	return NULL;
2007	}	1965	}
2008	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)	1966
		1967	for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)
2009	if (tmp->type == type)	1968	if (tmp->type == type)
2010	return tmp;	1969	return tmp;
		1970
2011	return NULL;	1971	return NULL;
2012	}	1972	}
2013		1973
2014	/*	1974	/*
2015	* present_in_ob(type, object) searches for any objects with	1975	* present_in_ob(type, object) searches for any objects with
2016	* a matching type variable in the inventory of the given object.	1976	* a matching type variable in the inventory of the given object.
2017	* The first matching object is returned, or NULL if none.	1977	* The first matching object is returned, or NULL if none.
2018	*/	1978	*/
2019
2020	object *	1979	object *
2021	present_in_ob (unsigned char type, const object *op)	1980	present_in_ob (unsigned char type, const object *op)
2022	{	1981	{
2023	object *
2024	tmp;
2025
2026	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1982	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
2027	if (tmp->type == type)	1983	if (tmp->type == type)
2028	return tmp;	1984	return tmp;
		1985
2029	return NULL;	1986	return NULL;
2030	}	1987	}
2031		1988
2032	/*	1989	/*
2033	* present_in_ob (type, str, object) searches for any objects with	1990	* present_in_ob (type, str, object) searches for any objects with
…		…
2041	* str is the string to match against. Note that we match against	1998	* str is the string to match against. Note that we match against
2042	* the object name, not the archetype name. this is so that the	1999	* the object name, not the archetype name. this is so that the
2043	* spell code can use one object type (force), but change it's name	2000	* spell code can use one object type (force), but change it's name
2044	* to be unique.	2001	* to be unique.
2045	*/	2002	*/
2046
2047	object *	2003	object *
2048	present_in_ob_by_name (int type, const char *str, const object *op)	2004	present_in_ob_by_name (int type, const char *str, const object *op)
2049	{	2005	{
2050	object *
2051	tmp;
2052
2053	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	2006	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2054	{
2055	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))	2007	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))
2056	return tmp;	2008	return tmp;
2057	}	2009
2058	return NULL;	2010	return 0;
2059	}	2011	}
2060		2012
2061	/*	2013	/*
2062	* present_arch_in_ob(archetype, object) searches for any objects with	2014	* present_arch_in_ob(archetype, object) searches for any objects with
2063	* a matching archetype in the inventory of the given object.	2015	* a matching archetype in the inventory of the given object.
2064	* The first matching object is returned, or NULL if none.	2016	* The first matching object is returned, or NULL if none.
2065	*/	2017	*/
2066
2067	object *	2018	object *
2068	present_arch_in_ob (const archetype *at, const object *op)	2019	present_arch_in_ob (const archetype *at, const object *op)
2069	{	2020	{
2070	object *
2071	tmp;
2072
2073	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	2021	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2074	if (tmp->arch == at)	2022	if (tmp->arch->archname == at->archname)
2075	return tmp;	2023	return tmp;
		2024
2076	return NULL;	2025	return NULL;
2077	}	2026	}
2078		2027
2079	/*	2028	/*
2080	* activate recursively a flag on an object inventory	2029	* activate recursively a flag on an object inventory
2081	*/	2030	*/
2082	void	2031	void
2083	flag_inv (object *op, int flag)	2032	flag_inv (object *op, int flag)
2084	{	2033	{
2085	object *
2086	tmp;
2087
2088	if (op->inv)
2089	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	2034	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2090	{	2035	{
2091	SET_FLAG (tmp, flag);	2036	tmp->set_flag (flag);
2092	flag_inv (tmp, flag);	2037	flag_inv (tmp, flag);
2093	}	2038	}
2094	} /*	2039	}
		2040
		2041	/*
2095	* desactivate recursively a flag on an object inventory	2042	* deactivate recursively a flag on an object inventory
2096	*/	2043	*/
2097	void	2044	void
2098	unflag_inv (object *op, int flag)	2045	unflag_inv (object *op, int flag)
2099	{	2046	{
2100	object *
2101	tmp;
2102
2103	if (op->inv)
2104	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	2047	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2105	{	2048	{
2106	CLEAR_FLAG (tmp, flag);	2049	tmp->clr_flag (flag);
2107	unflag_inv (tmp, flag);	2050	unflag_inv (tmp, flag);
2108	}	2051	}
2109	}
2110
2111	/*
2112	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in
2113	* all it's inventory (recursively).
2114	* If checksums are used, a player will get set_cheat called for
2115	* him/her-self and all object carried by a call to this function.
2116	*/
2117
2118	void
2119	set_cheat (object *op)
2120	{
2121	SET_FLAG (op, FLAG_WAS_WIZ);
2122	flag_inv (op, FLAG_WAS_WIZ);
2123	}	2052	}
2124		2053
2125	/*	2054	/*
2126	* find_free_spot(object, map, x, y, start, stop) will search for	2055	* find_free_spot(object, map, x, y, start, stop) will search for
2127	* a spot at the given map and coordinates which will be able to contain	2056	* a spot at the given map and coordinates which will be able to contain
…		…
2129	* to search (see the freearr_x/y[] definition).	2058	* to search (see the freearr_x/y[] definition).
2130	* It returns a random choice among the alternatives found.	2059	* It returns a random choice among the alternatives found.
2131	* start and stop are where to start relative to the free_arr array (1,9	2060	* start and stop are where to start relative to the free_arr array (1,9
2132	* does all 4 immediate directions). This returns the index into the	2061	* does all 4 immediate directions). This returns the index into the
2133	* array of the free spot, -1 if no spot available (dir 0 = x,y)	2062	* array of the free spot, -1 if no spot available (dir 0 = x,y)
2134	* Note - this only checks to see if there is space for the head of the
2135	* object - if it is a multispace object, this should be called for all
2136	* pieces.
2137	* Note2: This function does correctly handle tiled maps, but does not	2063	* Note: This function does correctly handle tiled maps, but does not
2138	* inform the caller. However, insert_ob_in_map will update as	2064	* inform the caller. However, insert_ob_in_map will update as
2139	* necessary, so the caller shouldn't need to do any special work.	2065	* necessary, so the caller shouldn't need to do any special work.
2140	* Note - updated to take an object instead of archetype - this is necessary	2066	* Note - updated to take an object instead of archetype - this is necessary
2141	* because arch_blocked (now ob_blocked) needs to know the movement type	2067	* because arch_blocked (now ob_blocked) needs to know the movement type
2142	* to know if the space in question will block the object. We can't use	2068	* to know if the space in question will block the object. We can't use
2143	* the archetype because that isn't correct if the monster has been	2069	* the archetype because that isn't correct if the monster has been
2144	* customized, changed states, etc.	2070	* customized, changed states, etc.
2145	*/	2071	*/
2146
2147	int	2072	int
2148	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)	2073	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)
2149	{	2074	{
2150	int
2151	i,
2152	index = 0, flag;
2153	static int
2154	altern[SIZEOFFREE];	2075	int altern[SIZEOFFREE];
		2076	int index = 0, flag;
2155		2077
2156	for (i = start; i < stop; i++)	2078	for (int i = start; i < stop; i++)
2157	{	2079	{
2158	flag = ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]);	2080	mapxy pos (m, x, y); pos.move (i);
2159	if (!flag)	2081
		2082	if (!pos.normalise ())
		2083	continue;
		2084
		2085	mapspace &ms = *pos;
		2086
		2087	if (ms.flags () & P_IS_ALIVE)
		2088	continue;
		2089
		2090	/* However, often
		2091	* ob doesn't have any move type (when used to place exits)
		2092	* so the AND operation in OB_TYPE_MOVE_BLOCK doesn't work.
		2093	*/
		2094	if (ob && ob->move_type == 0 && ms.move_block != MOVE_ALL)
		2095	{
2160	altern[index++] = i;	2096	altern [index++] = i;
		2097	continue;
		2098	}
2161		2099
2162	/* Basically, if we find a wall on a space, we cut down the search size.	2100	/* Basically, if we find a wall on a space, we cut down the search size.
2163	* In this way, we won't return spaces that are on another side of a wall.	2101	* In this way, we won't return spaces that are on another side of a wall.
2164	* This mostly work, but it cuts down the search size in all directions -	2102	* This mostly work, but it cuts down the search size in all directions -
2165	* if the space being examined only has a wall to the north and empty	2103	* if the space being examined only has a wall to the north and empty
2166	* spaces in all the other directions, this will reduce the search space	2104	* spaces in all the other directions, this will reduce the search space
2167	* to only the spaces immediately surrounding the target area, and	2105	* to only the spaces immediately surrounding the target area, and
2168	* won't look 2 spaces south of the target space.	2106	* won't look 2 spaces south of the target space.
2169	*/	2107	*/
2170	else if ((flag & AB_NO_PASS) && maxfree[i] < stop)	2108	if (ms.move_block == MOVE_ALL && maxfree[i] < stop)
		2109	{
2171	stop = maxfree[i];	2110	stop = maxfree[i];
		2111	continue;
		2112	}
		2113
		2114	/* Note it is intentional that we check ob - the movement type of the
		2115	* head of the object should correspond for the entire object.
		2116	*/
		2117	if (OB_TYPE_MOVE_BLOCK (ob, ms.move_block))
		2118	continue;
		2119
		2120	if (ob->blocked (pos.m, pos.x, pos.y))
		2121	continue;
		2122
		2123	altern [index++] = i;
2172	}	2124	}
		2125
2173	if (!index)	2126	if (!index)
2174	return -1;	2127	return -1;
		2128
2175	return altern[RANDOM () % index];	2129	return altern [rndm (index)];
2176	}	2130	}
2177		2131
2178	/*	2132	/*
2179	* find_first_free_spot(archetype, maptile, x, y) works like	2133	* find_first_free_spot(archetype, maptile, x, y) works like
2180	* find_free_spot(), but it will search max number of squares.	2134	* find_free_spot(), but it will search max number of squares.
2181	* But it will return the first available spot, not a random choice.	2135	* But it will return the first available spot, not a random choice.
2182	* Changed 0.93.2: Have it return -1 if there is no free spot available.	2136	* Changed 0.93.2: Have it return -1 if there is no free spot available.
2183	*/	2137	*/
2184
2185	int	2138	int
2186	find_first_free_spot (const object *ob, maptile *m, int x, int y)	2139	find_first_free_spot (const object *ob, maptile *m, int x, int y)
2187	{	2140	{
2188	int
2189	i;
2190
2191	for (i = 0; i < SIZEOFFREE; i++)	2141	for (int i = 0; i < SIZEOFFREE; i++)
2192	{
2193	if (!ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]))	2142	if (!ob->blocked (m, x + freearr_x[i], y + freearr_y[i]))
2194	return i;	2143	return i;
2195	}	2144
2196	return -1;	2145	return -1;
2197	}	2146	}
2198		2147
2199	/*	2148	/*
2200	* The function permute(arr, begin, end) randomly reorders the array	2149	* The function permute(arr, begin, end) randomly reorders the array
2201	* arr[begin..end-1].	2150	* arr[begin..end-1].
		2151	* now uses a fisher-yates shuffle, old permute was broken
2202	*/	2152	*/
2203	static void	2153	static void
2204	permute (int *arr, int begin, int end)	2154	permute (int *arr, int begin, int end)
2205	{	2155	{
2206	int	2156	arr += begin;
2207	i,
2208	j,
2209	tmp,
2210	len;
2211
2212	len = end - begin;	2157	end -= begin;
2213	for (i = begin; i < end; i++)
2214	{
2215	j = begin + RANDOM () % len;
2216		2158
2217	tmp = arr[i];	2159	while (--end)
2218	arr[i] = arr[j];	2160	swap (arr [end], arr [rndm (end + 1)]);
2219	arr[j] = tmp;
2220	}
2221	}	2161	}
2222		2162
2223	/* new function to make monster searching more efficient, and effective!	2163	/* new function to make monster searching more efficient, and effective!
2224	* This basically returns a randomized array (in the passed pointer) of	2164	* This basically returns a randomized array (in the passed pointer) of
2225	* the spaces to find monsters. In this way, it won't always look for	2165	* the spaces to find monsters. In this way, it won't always look for
…		…
2228	* the 3x3 area will be searched, just not in a predictable order.	2168	* the 3x3 area will be searched, just not in a predictable order.
2229	*/	2169	*/
2230	void	2170	void
2231	get_search_arr (int *search_arr)	2171	get_search_arr (int *search_arr)
2232	{	2172	{
2233	int	2173	int i;
2234	i;
2235		2174
2236	for (i = 0; i < SIZEOFFREE; i++)	2175	for (i = 0; i < SIZEOFFREE; i++)
2237	{
2238	search_arr[i] = i;	2176	search_arr[i] = i;
2239	}
2240		2177
2241	permute (search_arr, 1, SIZEOFFREE1 + 1);	2178	permute (search_arr, 1, SIZEOFFREE1 + 1);
2242	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);	2179	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);
2243	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);	2180	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);
2244	}	2181	}
…		…
2253	* Perhaps incorrectly, but I'm making the assumption that exclude	2190	* Perhaps incorrectly, but I'm making the assumption that exclude
2254	* is actually want is going to try and move there. We need this info	2191	* is actually want is going to try and move there. We need this info
2255	* because we have to know what movement the thing looking to move	2192	* because we have to know what movement the thing looking to move
2256	* there is capable of.	2193	* there is capable of.
2257	*/	2194	*/
2258
2259	int	2195	int
2260	find_dir (maptile *m, int x, int y, object *exclude)	2196	find_dir (maptile *m, int x, int y, object *exclude)
2261	{	2197	{
2262	int
2263	i,
2264	max = SIZEOFFREE, mflags;	2198	int max = SIZEOFFREE, mflags;
2265
2266	sint16 nx, ny;
2267	object *
2268	tmp;
2269	maptile *
2270	mp;
2271
2272	MoveType blocked, move_type;	2199	MoveType move_type;
2273		2200
2274	if (exclude && exclude->head)	2201	if (exclude && exclude->head_ () != exclude)
2275	{	2202	{
2276	exclude = exclude->head;	2203	exclude = exclude->head;
2277	move_type = exclude->move_type;	2204	move_type = exclude->move_type;
2278	}	2205	}
2279	else	2206	else
2280	{	2207	{
2281	/* If we don't have anything, presume it can use all movement types. */	2208	/* If we don't have anything, presume it can use all movement types. */
2282	move_type = MOVE_ALL;	2209	move_type = MOVE_ALL;
2283	}	2210	}
2284		2211
2285	for (i = 1; i < max; i++)	2212	for (int i = 1; i < max; i++)
2286	{	2213	{
2287	mp = m;	2214	mapxy pos (m, x, y);
2288	nx = x + freearr_x[i];	2215	pos.move (i);
2289	ny = y + freearr_y[i];
2290		2216
2291	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);	2217	if (!pos.normalise ())
2292	if (mflags & P_OUT_OF_MAP)
2293	{
2294	max = maxfree[i];	2218	max = maxfree[i];
2295	}
2296	else	2219	else
2297	{	2220	{
2298	blocked = GET_MAP_MOVE_BLOCK (mp, nx, ny);	2221	mapspace &ms = *pos;
2299		2222
2300	if ((move_type & blocked) == move_type)	2223	if ((move_type & ms.move_block) == move_type)
		2224	max = maxfree [i];
		2225	else if (ms.flags () & P_IS_ALIVE)
2301	{	2226	{
2302	max = maxfree[i];	2227	for (object *tmp = ms.bot; tmp; tmp = tmp->above)
2303	}	2228	if ((tmp->flag [FLAG_MONSTER] || tmp->is_player ())
2304	else if (mflags & P_IS_ALIVE)	2229	&& (tmp != exclude || (tmp->head_ () != tmp && tmp->head_ () != exclude)))
2305	{
2306	for (tmp = GET_MAP_OB (mp, nx, ny); tmp != NULL; tmp = tmp->above)
2307	{
2308	if ((QUERY_FLAG (tmp, FLAG_MONSTER) || tmp->type == PLAYER) && (tmp != exclude || (tmp->head && tmp->head != exclude)))
2309	{
2310	break;
2311	}
2312	}
2313	if (tmp)
2314	{
2315	return freedir[i];	2230	return freedir [i];
2316	}
2317	}	2231	}
2318	}	2232	}
2319	}	2233	}
		2234
2320	return 0;	2235	return 0;
2321	}	2236	}
2322		2237
2323	/*	2238	/*
2324	* distance(object 1, object 2) will return the square of the	2239	* distance(object 1, object 2) will return the square of the
2325	* distance between the two given objects.	2240	* distance between the two given objects.
2326	*/	2241	*/
2327
2328	int	2242	int
2329	distance (const object *ob1, const object *ob2)	2243	distance (const object *ob1, const object *ob2)
2330	{	2244	{
2331	int
2332	i;
2333
2334	i = (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);	2245	return (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);
2335	return i;
2336	}	2246	}
2337		2247
2338	/*	2248	/*
2339	* find_dir_2(delta-x,delta-y) will return a direction in which	2249	* find_dir_2(delta-x,delta-y) will return a direction value
2340	* an object which has subtracted the x and y coordinates of another	2250	* for running into direct [dx, dy].
2341	* object, needs to travel toward it.	2251	* (the opposite of crossfire's find_dir_2!)
2342	*/	2252	*/
2343
2344	int	2253	int
2345	find_dir_2 (int x, int y)	2254	find_dir_2 (int x, int y)
2346	{	2255	{
		2256	#if 1 // new algorithm
		2257	// this works by putting x, y into 16 sectors, which
		2258	// are not equal sized, but are a better approximation
		2259	// then the old algorithm, and then using a mapping
		2260	// table to map it into a direction value.
		2261	// basically, it maps these comparisons to each bit
		2262	// bit #3: x < 0
		2263	// bit #2: y < 0
		2264	// bit #1: x > y
		2265	// bit #0: x > 2y
		2266
		2267	static const uint8 dir[16] = {
		2268	4, 5, 4, 3,
		2269	2, 1, 2, 3,
		2270	6, 5, 6, 7,
		2271	8, 1, 8, 7,
		2272	};
		2273	int sector = 0;
		2274
		2275	// this is a bit ugly, but more likely to result in branchless code
		2276	sector |= x < 0 ? 8 : 0;
		2277	x = x < 0 ? -x : x; // abs
		2278
		2279	sector |= y < 0 ? 4 : 0;
		2280	y = y < 0 ? -y : y; // abs
		2281
		2282	if (x > y)
		2283	{
		2284	sector |= 2;
		2285
		2286	if (x > y * 2)
		2287	sector |= 1;
		2288	}
		2289	else
		2290	{
		2291	if (y > x * 2)
		2292	sector |= 1;
		2293	else if (!y)
		2294	return 0; // x == 0 here
		2295	}
		2296
		2297	return dir [sector];
		2298	#else // old algorithm
2347	int	2299	int q;
2348	q;
2349		2300
2350	if (y)	2301	if (y)
2351	q = x * 100 / y;	2302	q = 128 * x / y;
2352	else if (x)	2303	else if (x)
2353	q = -300 * x;	2304	q = -512 * x; // to make it > 309
2354	else	2305	else
2355	return 0;	2306	return 0;
2356		2307
2357	if (y > 0)	2308	if (y > 0)
2358	{	2309	{
2359	if (q < -242)	2310	if (q < -309) return 7;
		2311	if (q < -52) return 6;
		2312	if (q < 52) return 5;
		2313	if (q < 309) return 4;
		2314
2360	return 3;	2315	return 3;
2361	if (q < -41)	2316	}
2362	return 2;	2317	else
2363	if (q < 41)	2318	{
2364	return 1;	2319	if (q < -309) return 3;
2365	if (q < 242)	2320	if (q < -52) return 2;
2366	return 8;	2321	if (q < 52) return 1;
		2322	if (q < 309) return 8;
		2323
2367	return 7;	2324	return 7;
2368	}	2325	}
2369		2326	#endif
2370	if (q < -242)
2371	return 7;
2372	if (q < -41)
2373	return 6;
2374	if (q < 41)
2375	return 5;
2376	if (q < 242)
2377	return 4;
2378
2379	return 3;
2380	}
2381
2382	/*
2383	* absdir(int): Returns a number between 1 and 8, which represent
2384	* the "absolute" direction of a number (it actually takes care of
2385	* "overflow" in previous calculations of a direction).
2386	*/
2387
2388	int
2389	absdir (int d)
2390	{
2391	while (d < 1)
2392	d += 8;
2393	while (d > 8)
2394	d -= 8;
2395	return d;
2396	}	2327	}
2397		2328
2398	/*	2329	/*
2399	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is	2330	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is
2400	* between two directions (which are expected to be absolute (see absdir())	2331	* between two directions (which are expected to be absolute (see absdir())
2401	*/	2332	*/
2402
2403	int	2333	int
2404	dirdiff (int dir1, int dir2)	2334	dirdiff (int dir1, int dir2)
2405	{	2335	{
2406	int
2407	d;
2408
2409	d = abs (dir1 - dir2);	2336	int d = abs (dir1 - dir2);
2410	if (d > 4)	2337
2411	d = 8 - d;	2338	return d > 4 ? 8 - d : d;
2412	return d;
2413	}	2339	}
2414		2340
2415	/* peterm:	2341	/* peterm:
2416	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.	2342	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.
2417	* Basically, this is a table of directions, and what directions	2343	* Basically, this is a table of directions, and what directions
…		…
2419	* This basically means that if direction is 15, then it could either go	2345	* This basically means that if direction is 15, then it could either go
2420	* direction 4, 14, or 16 to get back to where we are.	2346	* direction 4, 14, or 16 to get back to where we are.
2421	* Moved from spell_util.c to object.c with the other related direction	2347	* Moved from spell_util.c to object.c with the other related direction
2422	* functions.	2348	* functions.
2423	*/	2349	*/
2424
2425	int
2426	reduction_dir[SIZEOFFREE][3] = {	2350	static const int reduction_dir[SIZEOFFREE][3] = {
2427	{0, 0, 0}, /* 0 */	2351	{0, 0, 0}, /* 0 */
2428	{0, 0, 0}, /* 1 */	2352	{0, 0, 0}, /* 1 */
2429	{0, 0, 0}, /* 2 */	2353	{0, 0, 0}, /* 2 */
2430	{0, 0, 0}, /* 3 */	2354	{0, 0, 0}, /* 3 */
2431	{0, 0, 0}, /* 4 */	2355	{0, 0, 0}, /* 4 */
…		…
2479	* find a path to that monster that we found. If not,	2403	* find a path to that monster that we found. If not,
2480	* we don't bother going toward it. Returns 1 if we	2404	* we don't bother going toward it. Returns 1 if we
2481	* can see a direct way to get it	2405	* can see a direct way to get it
2482	* Modified to be map tile aware -.MSW	2406	* Modified to be map tile aware -.MSW
2483	*/	2407	*/
2484
2485
2486	int	2408	int
2487	can_see_monsterP (maptile *m, int x, int y, int dir)	2409	can_see_monsterP (maptile *m, int x, int y, int dir)
2488	{	2410	{
2489	sint16 dx, dy;	2411	sint16 dx, dy;
2490	int
2491	mflags;	2412	int mflags;
2492		2413
2493	if (dir < 0)	2414	if (dir < 0)
2494	return 0; /* exit condition: invalid direction */	2415	return 0; /* exit condition: invalid direction */
2495		2416
2496	dx = x + freearr_x[dir];	2417	dx = x + freearr_x[dir];
…		…
2509	return 0;	2430	return 0;
2510		2431
2511	/* yes, can see. */	2432	/* yes, can see. */
2512	if (dir < 9)	2433	if (dir < 9)
2513	return 1;	2434	return 1;
		2435
2514	return can_see_monsterP (m, x, y, reduction_dir[dir][0]) |	2436	return can_see_monsterP (m, x, y, reduction_dir[dir][0])
2515	can_see_monsterP (m, x, y, reduction_dir[dir][1]) | can_see_monsterP (m, x, y, reduction_dir[dir][2]);	2437	| can_see_monsterP (m, x, y, reduction_dir[dir][1])
		2438	| can_see_monsterP (m, x, y, reduction_dir[dir][2]);
2516	}	2439	}
2517
2518
2519		2440
2520	/*	2441	/*
2521	* can_pick(picker, item): finds out if an object is possible to be	2442	* can_pick(picker, item): finds out if an object is possible to be
2522	* picked up by the picker. Returnes 1 if it can be	2443	* picked up by the picker. Returnes 1 if it can be
2523	* picked up, otherwise 0.	2444	* picked up, otherwise 0.
…		…
2525	* Cf 0.91.3 - don't let WIZ's pick up anything - will likely cause	2446	* Cf 0.91.3 - don't let WIZ's pick up anything - will likely cause
2526	* core dumps if they do.	2447	* core dumps if they do.
2527	*	2448	*
2528	* Add a check so we can't pick up invisible objects (0.93.8)	2449	* Add a check so we can't pick up invisible objects (0.93.8)
2529	*/	2450	*/
2530
2531	int	2451	int
2532	can_pick (const object *who, const object *item)	2452	can_pick (const object *who, const object *item)
2533	{	2453	{
2534	return /*QUERY_FLAG(who,FLAG_WIZ)|| */	2454	return /*who->flag [FLAG_WIZ]|| */
2535	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&	2455	(item->weight > 0 && !item->flag [FLAG_NO_PICK] &&
2536	!QUERY_FLAG (item, FLAG_ALIVE) && !item->invisible && (who->type == PLAYER || item->weight < who->weight / 3));	2456	!item->flag [FLAG_ALIVE] && !item->invisible && (who->is_player () || item->weight < who->weight / 3));
2537	}	2457	}
2538
2539		2458
2540	/*	2459	/*
2541	* create clone from object to another	2460	* create clone from object to another
2542	*/	2461	*/
2543	object *	2462	object *
2544	object_create_clone (object *asrc)	2463	object::deep_clone ()
2545	{	2464	{
2546	object *	2465	assert (("deep_clone called on non-head object", is_head ()));
2547	dst = NULL, *tmp, *src, *part, *prev, *item;
2548		2466
2549	if (!asrc)	2467	object *dst = clone ();
2550	return NULL;
2551	src = asrc;
2552	if (src->head)
2553	src = src->head;
2554		2468
2555	prev = NULL;	2469	object *prev = dst;
2556	for (part = src; part; part = part->more)	2470	for (object *part = this->more; part; part = part->more)
2557	{	2471	{
2558	tmp = get_object ();	2472	object *tmp = part->clone ();
2559	copy_object (part, tmp);
2560	tmp->x -= src->x;
2561	tmp->y -= src->y;
2562	if (!part->head)
2563	{
2564	dst = tmp;
2565	tmp->head = NULL;
2566	}
2567	else
2568	{
2569	tmp->head = dst;	2473	tmp->head = dst;
2570	}
2571	tmp->more = NULL;
2572	if (prev)
2573	prev->more = tmp;	2474	prev->more = tmp;
2574	prev = tmp;	2475	prev = tmp;
2575	}	2476	}
2576		2477
2577	for (item = src->inv; item; item = item->below)	2478	for (object *item = inv; item; item = item->below)
2578	insert_ob_in_ob (object_create_clone (item), dst);	2479	insert_ob_in_ob (item->deep_clone (), dst);
2579		2480
2580	return dst;	2481	return dst;
2581	}
2582
2583	/* GROS - Creates an object using a string representing its content. */
2584	/* Basically, we save the content of the string to a temp file, then call */
2585	/* load_object on it. I admit it is a highly inefficient way to make things, */
2586	/* but it was simple to make and allows reusing the load_object function. */
2587	/* Remember not to use load_object_str in a time-critical situation. */
2588	/* Also remember that multiparts objects are not supported for now. */
2589
2590	object *
2591	load_object_str (const char *obstr)
2592	{
2593	object *op;
2594	char filename[MAX_BUF];
2595
2596	sprintf (filename, "%s/cfloadobstr2044", settings.tmpdir);
2597
2598	FILE *tempfile = fopen (filename, "w");
2599
2600	if (tempfile == NULL)
2601	{
2602	LOG (llevError, "Error - Unable to access load object temp file\n");
2603	return NULL;
2604	}
2605
2606	fprintf (tempfile, obstr);
2607	fclose (tempfile);
2608
2609	op = get_object ();
2610
2611	object_thawer thawer (filename);
2612
2613	if (thawer)
2614	load_object (thawer, op, 0);
2615
2616	LOG (llevDebug, " load str completed, object=%s\n", &op->name);
2617	CLEAR_FLAG (op, FLAG_REMOVED);
2618
2619	return op;
2620	}	2482	}
2621		2483
2622	/* This returns the first object in who's inventory that	2484	/* This returns the first object in who's inventory that
2623	* has the same type and subtype match.	2485	* has the same type and subtype match.
2624	* returns NULL if no match.	2486	* returns NULL if no match.
2625	*/	2487	*/
2626	object *	2488	object *
2627	find_obj_by_type_subtype (const object *who, int type, int subtype)	2489	find_obj_by_type_subtype (const object *who, int type, int subtype)
2628	{	2490	{
2629	object *tmp;
2630
2631	for (tmp = who->inv; tmp; tmp = tmp->below)	2491	for (object *tmp = who->inv; tmp; tmp = tmp->below)
2632	if (tmp->type == type && tmp->subtype == subtype)	2492	if (tmp->type == type && tmp->subtype == subtype)
2633	return tmp;	2493	return tmp;
2634		2494
2635	return NULL;
2636	}
2637
2638	/* If ob has a field named key, return the link from the list,
2639	* otherwise return NULL.
2640	*
2641	* key must be a passed in shared string - otherwise, this won't
2642	* do the desired thing.
2643	*/
2644	key_value *
2645	get_ob_key_link (const object *ob, const char *key)
2646	{
2647	key_value *link;
2648
2649	for (link = ob->key_values; link != NULL; link = link->next)
2650	if (link->key == key)
2651	return link;
2652
2653	return NULL;
2654	}
2655
2656	/*
2657	* Returns the value of op has an extra_field for key, or NULL.
2658	*
2659	* The argument doesn't need to be a shared string.
2660	*
2661	* The returned string is shared.
2662	*/
2663	const char *
2664	get_ob_key_value (const object *op, const char *const key)
2665	{
2666	key_value *link;
2667	shstr_cmp canonical_key (key);
2668
2669	if (!canonical_key)
2670	{
2671	/* 1. There being a field named key on any object
2672	* implies there'd be a shared string to find.
2673	* 2. Since there isn't, no object has this field.
2674	* 3. Therefore, *this* object doesn't have this field.
2675	*/
2676	return 0;
2677	}
2678
2679	/* This is copied from get_ob_key_link() above -
2680	* only 4 lines, and saves the function call overhead.
2681	*/
2682	for (link = op->key_values; link; link = link->next)
2683	if (link->key == canonical_key)
2684	return link->value;
2685
2686	return 0;	2495	return 0;
2687	}	2496	}
2688		2497
2689		2498	shstr_tmp
2690	/*	2499	object::kv_get (shstr_tmp key) const
2691	* Updates the canonical_key in op to value.
2692	*
2693	* canonical_key is a shared string (value doesn't have to be).
2694	*
2695	* Unless add_key is TRUE, it won't add fields, only change the value of existing
2696	* keys.
2697	*
2698	* Returns TRUE on success.
2699	*/
2700	int
2701	set_ob_key_value_s (object *op, const shstr & canonical_key, const char *value, int add_key)
2702	{	2500	{
2703	key_value *	2501	for (key_value *kv = key_values; kv; kv = kv->next)
2704	field = NULL, *last = NULL;	2502	if (kv->key == key)
		2503	return kv->value;
2705		2504
2706	for (field = op->key_values; field != NULL; field = field->next)	2505	return shstr ();
2707	{	2506	}
2708	if (field->key != canonical_key)	2507
		2508	void
		2509	object::kv_set (shstr_tmp key, shstr_tmp value)
		2510	{
		2511	for (key_value *kv = key_values; kv; kv = kv->next)
		2512	if (kv->key == key)
2709	{	2513	{
2710	last = field;	2514	kv->value = value;
2711	continue;	2515	return;
2712	}	2516	}
2713		2517
2714	if (value)	2518	key_value *kv = new key_value;
2715	field->value = value;	2519
2716	else	2520	kv->next = key_values;
		2521	kv->key = key;
		2522	kv->value = value;
		2523
		2524	key_values = kv;
		2525	}
		2526
		2527	void
		2528	object::kv_del (shstr_tmp key)
		2529	{
		2530	for (key_value **kvp = &key_values; *kvp; kvp = &(*kvp)->next)
		2531	if ((*kvp)->key == key)
2717	{	2532	{
2718	/* Basically, if the archetype has this key set,	2533	key_value *kv = *kvp;
2719	* we need to store the null value so when we save	2534	*kvp = (*kvp)->next;
2720	* it, we save the empty value so that when we load,	2535	delete kv;
2721	* we get this value back again.	2536	return;
2722	*/
2723	if (get_ob_key_link (&op->arch->clone, canonical_key))
2724	field->value = 0;
2725	else
2726	{
2727	if (last)
2728	last->next = field->next;
2729	else
2730	op->key_values = field->next;
2731
2732	delete field;
2733	}
2734	}	2537	}
2735	return TRUE;
2736	}
2737	/* IF we get here, key doesn't exist */
2738
2739	/* No field, we'll have to add it. */
2740
2741	if (!add_key)
2742	{
2743	return FALSE;
2744	}
2745	/* There isn't any good reason to store a null
2746	* value in the key/value list. If the archetype has
2747	* this key, then we should also have it, so shouldn't
2748	* be here. If user wants to store empty strings,
2749	* should pass in ""
2750	*/
2751	if (value == NULL)
2752	return TRUE;
2753
2754	field = new key_value;
2755
2756	field->key = canonical_key;
2757	field->value = value;
2758	/* Usual prepend-addition. */
2759	field->next = op->key_values;
2760	op->key_values = field;
2761
2762	return TRUE;
2763	}
2764
2765	/*
2766	* Updates the key in op to value.
2767	*
2768	* If add_key is FALSE, this will only update existing keys,
2769	* and not add new ones.
2770	* In general, should be little reason FALSE is ever passed in for add_key
2771	*
2772	* Returns TRUE on success.
2773	*/
2774	int
2775	set_ob_key_value (object *op, const char *key, const char *value, int add_key)
2776	{
2777	shstr key_ (key);
2778
2779	return set_ob_key_value_s (op, key_, value, add_key);
2780	}	2538	}
2781		2539
2782	object::depth_iterator::depth_iterator (object *container)	2540	object::depth_iterator::depth_iterator (object *container)
2783	: iterator_base (container)	2541	: iterator_base (container)
2784	{	2542	{
…		…
2798	}	2556	}
2799	else	2557	else
2800	item = item->env;	2558	item = item->env;
2801	}	2559	}
2802		2560
		2561	const char *
		2562	object::flag_desc (char *desc, int len) const
		2563	{
		2564	char *p = desc;
		2565	bool first = true;
		2566
		2567	*p = 0;
		2568
		2569	for (int i = 0; i < NUM_FLAGS; i++)
		2570	{
		2571	if (len <= 10) // magic constant!
		2572	{
		2573	snprintf (p, len, ",...");
		2574	break;
		2575	}
		2576
		2577	if (flag [i])
		2578	{
		2579	int cnt = snprintf (p, len, "%s%d", first ? "" : ",", i);
		2580	len -= cnt;
		2581	p += cnt;
		2582	first = false;
		2583	}
		2584	}
		2585
		2586	return desc;
		2587	}
		2588
2803	// return a suitable string describing an objetc in enough detail to find it	2589	// return a suitable string describing an object in enough detail to find it
2804	const char *	2590	const char *
2805	object::debug_desc (char *info) const	2591	object::debug_desc (char *info) const
2806	{	2592	{
		2593	char flagdesc[512];
2807	char info2[256 * 3];	2594	char info2[256 * 4];
2808	char *p = info;	2595	char *p = info;
2809		2596
2810	p += snprintf (p, 256, "%d=\"%s%s%s\"",	2597	p += snprintf (p, 512, "{cnt:%d,uuid:%s,name:\"%s\"%s%s%s,flags:[%s],type:%d}",
2811	count,	2598	count,
		2599	uuid.c_str (),
2812	&name,	2600	&name,
2813	title ? " " : "",	2601	title ? ",title:\"" : "",
2814	title ? (const char *)title : "");	2602	title ? (const char *)title : "",
		2603	title ? "\"" : "",
		2604	flag_desc (flagdesc, 512), type);
2815		2605
2816	if (env)	2606	if (!flag[FLAG_REMOVED] && env)
2817	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));	2607	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));
2818		2608
2819	if (map)	2609	if (map)
2820	p += snprintf (p, 256, "(on %s@%d+%d)", map->path, x, y);	2610	p += snprintf (p, 256, "(on %s@%d+%d)", &map->path, x, y);
2821		2611
2822	return info;	2612	return info;
2823	}	2613	}
2824		2614
2825	const char *	2615	const char *
2826	object::debug_desc () const	2616	object::debug_desc () const
2827	{	2617	{
2828	static char info[256 * 3];	2618	static char info[3][256 * 4];
		2619	static int info_idx;
		2620
2829	return debug_desc (info);	2621	return debug_desc (info [++info_idx % 3]);
2830	}	2622	}
2831		2623
		2624	struct region *
		2625	object::region () const
		2626	{
		2627	return map ? map->region (x, y)
		2628	: region::default_region ();
		2629	}
		2630
		2631	void
		2632	object::open_container (object *new_container)
		2633	{
		2634	if (container == new_container)
		2635	return;
		2636
		2637	object *old_container = container;
		2638
		2639	if (old_container)
		2640	{
		2641	if (INVOKE_OBJECT (CLOSE, old_container, ARG_OBJECT (this)))
		2642	return;
		2643
		2644	#if 0
		2645	// remove the "Close old_container" object.
		2646	if (object *closer = old_container->inv)
		2647	if (closer->type == CLOSE_CON)
		2648	closer->destroy ();
		2649	#endif
		2650
		2651	// make sure the container is available
		2652	esrv_send_item (this, old_container);
		2653
		2654	old_container->flag [FLAG_APPLIED] = false;
		2655	container = 0;
		2656
		2657	// client needs item update to make it work, client bug requires this to be separate
		2658	esrv_update_item (UPD_FLAGS, this, old_container);
		2659
		2660	new_draw_info_format (NDI_UNIQUE, 0, this, "You close %s.", old_container->query_name ());
		2661	play_sound (sound_find ("chest_close"));
		2662	}
		2663
		2664	if (new_container)
		2665	{
		2666	if (INVOKE_OBJECT (OPEN, new_container, ARG_OBJECT (this)))
		2667	return;
		2668
		2669	// TODO: this does not seem to serve any purpose anymore?
		2670	#if 0
		2671	// insert the "Close Container" object.
		2672	if (archetype *closer = new_container->other_arch)
		2673	{
		2674	object *closer = new_container->other_arch->instance ();
		2675	closer->flag [FLAG_NO_MAP_SAVE] = 1;
		2676	new_container->insert (closer);
		2677	}
		2678	#endif
		2679
		2680	new_draw_info_format (NDI_UNIQUE, 0, this, "You open %s.", new_container->query_name ());
		2681
		2682	// make sure the container is available, client bug requires this to be separate
		2683	esrv_send_item (this, new_container);
		2684
		2685	new_container->flag [FLAG_APPLIED] = true;
		2686	container = new_container;
		2687
		2688	// client needs flag change
		2689	esrv_update_item (UPD_FLAGS, this, new_container);
		2690	esrv_send_inventory (this, new_container);
		2691	play_sound (sound_find ("chest_open"));
		2692	}
		2693	// else if (!old_container->env && contr && contr->ns)
		2694	// contr->ns->floorbox_reset ();
		2695	}
		2696
		2697	object *
		2698	object::force_find (shstr_tmp name)
		2699	{
		2700	/* cycle through his inventory to look for the MARK we want to
		2701	* place
		2702	*/
		2703	for (object *tmp = inv; tmp; tmp = tmp->below)
		2704	if (tmp->type == FORCE && tmp->slaying == name)
		2705	return splay (tmp);
		2706
		2707	return 0;
		2708	}
		2709
		2710	//-GPL
		2711
		2712	void
		2713	object::force_set_timer (int duration)
		2714	{
		2715	this->duration = 1;
		2716	this->speed_left = -1.f;
		2717
		2718	this->set_speed (duration ? 1.f / duration : 0.f);
		2719	}
		2720
		2721	object *
		2722	object::force_add (shstr_tmp name, int duration)
		2723	{
		2724	if (object *force = force_find (name))
		2725	force->destroy ();
		2726
		2727	object *force = get_archetype (FORCE_NAME);
		2728
		2729	force->slaying = name;
		2730	force->force_set_timer (duration);
		2731	force->flag [FLAG_APPLIED] = true;
		2732
		2733	return insert (force);
		2734	}
		2735
		2736	void
		2737	object::play_sound (faceidx sound) const
		2738	{
		2739	if (!sound)
		2740	return;
		2741
		2742	if (is_on_map ())
		2743	map->play_sound (sound, x, y);
		2744	else if (object *pl = in_player ())
		2745	pl->contr->play_sound (sound);
		2746	}
		2747
		2748	void
		2749	object::say_msg (const char *msg) const
		2750	{
		2751	if (is_on_map ())
		2752	map->say_msg (msg, x, y);
		2753	else if (object *pl = in_player ())
		2754	pl->contr->play_sound (sound);
		2755	}
		2756
		2757	void
		2758	object::make_noise ()
		2759	{
		2760	// we do not model noise in the map, so instead put
		2761	// a temporary light into the noise source
		2762	// could use the map instead, but that's less reliable for our
		2763	// goal, which is to make invisibility a bit harder to exploit
		2764
		2765	// currently only works sensibly for players
		2766	if (!is_player ())
		2767	return;
		2768
		2769	// find old force, or create new one
		2770	object *force = force_find (shstr_noise_force);
		2771
		2772	if (force)
		2773	force->speed_left = -1.f; // patch old speed up
		2774	else
		2775	{
		2776	force = archetype::get (shstr_noise_force);
		2777
		2778	force->slaying = shstr_noise_force;
		2779	force->stats.food = 1;
		2780	force->speed_left = -1.f;
		2781
		2782	force->set_speed (1.f / 4.f);
		2783	force->flag [FLAG_IS_USED_UP] = true;
		2784	force->flag [FLAG_APPLIED] = true;
		2785
		2786	insert (force);
		2787	}
		2788	}
		2789
		2790	void object::change_move_type (MoveType mt)
		2791	{
		2792	if (move_type == mt)
		2793	return;
		2794
		2795	if (is_on_map ())
		2796	{
		2797	// we are on the map, so handle move_on/off effects
		2798	remove ();
		2799	move_type = mt;
		2800	map->insert (this, x, y, this);
		2801	}
		2802	else
		2803	move_type = mt;
		2804	}
		2805
		2806	/* object should be a player.
		2807	* we return the object the player has marked with the 'mark' command
		2808	* below. If no match is found (or object has changed), we return
		2809	* NULL. We leave it up to the calling function to print messages if
		2810	* nothing is found.
		2811	*/
		2812	object *
		2813	object::mark () const
		2814	{
		2815	if (contr && contr->mark && contr->mark->env == this)
		2816	return contr->mark;
		2817	else
		2818	return 0;
		2819	}
		2820
		2821	// put marked object first in the inventory
		2822	// this is used by identify-like spells so players can influence
		2823	// the order a bit.
		2824	void
		2825	object::splay_marked ()
		2826	{
		2827	if (object *marked = mark ())
		2828	splay (marked);
		2829	}
		2830

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