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Comparing deliantra/server/common/object.C (file contents):
Revision 1.57 by root, Sun Dec 3 02:46:33 2006 UTC vs.
Revision 1.347 by root, Wed May 4 07:41:13 2011 UTC

1	/*	1	/*
2	CrossFire, A Multiplayer game for X-windows	2	* This file is part of Deliantra, the Roguelike Realtime MMORPG.
3		3	*
		4	* Copyright (©) 2005,2006,2007,2008,2009,2010,2011 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
4	Copyright (C) 2001 Mark Wedel & Crossfire Development Team	5	* Copyright (©) 2001 Mark Wedel & Crossfire Development Team
5	Copyright (C) 1992 Frank Tore Johansen	6	* Copyright (©) 1992 Frank Tore Johansen
6		7	*
7	This program is free software; you can redistribute it and/or modify	8	* Deliantra is free software: you can redistribute it and/or modify it under
8	it under the terms of the GNU General Public License as published by	9	* the terms of the Affero GNU General Public License as published by the
9	the Free Software Foundation; either version 2 of the License, or	10	* Free Software Foundation, either version 3 of the License, or (at your
10	(at your option) any later version.	11	* option) any later version.
11		12	*
12	This program is distributed in the hope that it will be useful,	13	* This program is distributed in the hope that it will be useful,
13	but WITHOUT ANY WARRANTY; without even the implied warranty of	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15	GNU General Public License for more details.	16	* GNU General Public License for more details.
16		17	*
17	You should have received a copy of the GNU General Public License	18	* You should have received a copy of the Affero GNU General Public License
18	along with this program; if not, write to the Free Software	19	* and the GNU General Public License along with this program. If not, see
19	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.	20	* <http://www.gnu.org/licenses/>.
20		21	*
21	The authors can be reached via e-mail at <crossfire@schmorp.de>	22	* The authors can be reached via e-mail to <support@deliantra.net>
22	*/	23	*/
23		24
24	/* Eneq(@csd.uu.se): Added weight-modifiers in environment of objects.
25	sub/add_weight will transcend the environment updating the carrying
26	variable. */
27	#include <global.h>	25	#include <global.h>
28	#include <stdio.h>	26	#include <stdio.h>
29	#include <sys/types.h>	27	#include <sys/types.h>
30	#include <sys/uio.h>	28	#include <sys/uio.h>
31	#include <object.h>	29	#include <object.h>
32	#include <funcpoint.h>	30	#include <sproto.h>
33	#include <loader.h>
34		31
35	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->kv.first; 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	|| ob1->custom_name != ob2->custom_name
		283	|| fabs (ob1->speed - ob2->speed) >= MIN_ACTIVE_SPEED)
198	return 0;	284	return 0;
199		285
200	if (ob1->speed != ob2->speed)	286	/* Do not merge objects if nrof would overflow, assume nrof
		287	* is always 0 .. 2**31-1 */
		288	if (ob1->nrof > 0x7fffffff - ob2->nrof)
201	return 0;	289	return 0;
202		290
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.	291	/* 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	292	* 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	293	* 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	294	* are not equal - just if it has been identified, the been_applied
214	* flags lose any meaning.	295	* flags lose any meaning.
215	*/	296	*/
216	if (QUERY_FLAG (ob1, FLAG_IDENTIFIED))	297	if (ob1->flag [FLAG_IDENTIFIED])
217	SET_FLAG (ob1, FLAG_BEEN_APPLIED);	298	ob1->set_flag (FLAG_BEEN_APPLIED);
218		299
219	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))	300	if (ob2->flag [FLAG_IDENTIFIED])
220	SET_FLAG (ob2, FLAG_BEEN_APPLIED);	301	ob2->set_flag (FLAG_BEEN_APPLIED);
221		302
222		303	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) ||	304	|| ob1->name != ob2->name
233	(ob1->title != ob2->title) ||	305	|| ob1->title != ob2->title
234	(ob1->msg != ob2->msg) ||	306	|| ob1->msg != ob2->msg
235	(ob1->weight != ob2->weight) ||	307	|| 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) ||	308	|| ob1->attacktype != ob2->attacktype
239	(ob1->magic != ob2->magic) ||	309	|| ob1->magic != ob2->magic
240	(ob1->slaying != ob2->slaying) ||	310	|| ob1->slaying != ob2->slaying
241	(ob1->skill != ob2->skill) ||	311	|| ob1->skill != ob2->skill
242	(ob1->value != ob2->value) ||	312	|| ob1->value != ob2->value
243	(ob1->animation_id != ob2->animation_id) ||	313	|| ob1->animation_id != ob2->animation_id
		314	|| (ob1->face != ob2->face && !ob1->animation_id) // face and animation are dependend on each other
244	(ob1->client_type != ob2->client_type) ||	315	|| ob1->client_type != ob2->client_type
245	(ob1->materialname != ob2->materialname) ||	316	|| ob1->material != ob2->material
246	(ob1->lore != ob2->lore) ||	317	|| ob1->lore != ob2->lore
247	(ob1->subtype != ob2->subtype) ||	318	|| ob1->subtype != ob2->subtype
248	(ob1->move_type != ob2->move_type) ||	319	|| ob1->move_type != ob2->move_type
249	(ob1->move_block != ob2->move_block) ||	320	|| ob1->move_block != ob2->move_block
250	(ob1->move_allow != ob2->move_allow) ||	321	|| ob1->move_allow != ob2->move_allow
251	(ob1->move_on != ob2->move_on) ||	322	|| 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))	323	|| ob1->move_off != ob2->move_off
		324	|| ob1->move_slow != ob2->move_slow
		325	|| fabs (ob1->move_slow_penalty - ob2->move_slow_penalty) >= (1.f / 1024.f)
		326	|| memcmp (&ob1->resist, &ob2->resist, sizeof (ob1->resist))
		327	|| memcmp (&ob1->stats , &ob2->stats , sizeof (ob1->stats)))
253	return 0;	328	return 0;
254		329
		330	if ((ob1->flag ^ ob2->flag)
		331	.reset (FLAG_INV_LOCKED)
		332	.reset (FLAG_REMOVED)
		333	.any ())
		334	return 0;
		335
255	/* This is really a spellbook check - really, we should	336	/* This is really a spellbook check - we should in general
256	* check all objects in the inventory.	337	* not merge objects with real inventories, as splitting them
		338	* is hard.
257	*/	339	*/
258	if (ob1->inv || ob2->inv)	340	if (ob1->inv || ob2->inv)
259	{	341	{
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))	342	if (!(ob1->inv && ob2->inv))
266	return 0;	343	return 0; /* inventories differ in length */
		344
		345	if (ob1->inv->below || ob2->inv->below)
		346	return 0; /* more than one object in inv */
		347
		348	if (!object::can_merge (ob1->inv, ob2->inv))
		349	return 0; /* inventory objects differ */
267		350
268	/* inventory ok - still need to check rest of this object to see	351	/* inventory ok - still need to check rest of this object to see
269	* if it is valid.	352	* if it is valid.
270	*/	353	*/
271	}	354	}
272		355
273	/* Don't merge objects that are applied. With the new 'body' code,	356	/* Don't merge objects that are applied. With the new 'body' code,
274	* it is possible for most any character to have more than one of	357	* it is possible for most any character to have more than one of
275	* some items equipped, and we don't want those to merge.	358	* some items equipped, and we don't want those to merge.
276	*/	359	*/
277	if (QUERY_FLAG (ob1, FLAG_APPLIED) || QUERY_FLAG (ob2, FLAG_APPLIED))	360	if (ob1->flag [FLAG_APPLIED] || ob2->flag [FLAG_APPLIED])
278	return 0;	361	return 0;
279		362
280	/* Note sure why the following is the case - either the object has to	363	/* Note sure why the following is the case - either the object has to
281	* be animated or have a very low speed. Is this an attempted monster	364	* be animated or have a very low speed. Is this an attempted monster
282	* check?	365	* check?
283	*/	366	*/
284	if (!QUERY_FLAG (ob1, FLAG_ANIMATE) && FABS ((ob1)->speed) > MIN_ACTIVE_SPEED)	367	if (!ob1->flag [FLAG_ANIMATE] && ob1->has_active_speed ())
285	return 0;	368	return 0;
286		369
287	switch (ob1->type)	370	switch (ob1->type)
288	{	371	{
289	case SCROLL:	372	case SCROLL:
290	if (ob1->level != ob2->level)	373	if (ob1->level != ob2->level)
291	return 0;	374	return 0;
292	break;	375	break;
293	}	376	}
294		377
295	if (ob1->key_values != NULL || ob2->key_values != NULL)	378	if (!ob1->kv.empty () || !ob2->kv.empty ())
296	{	379	{
297	/* At least one of these has key_values. */	380	/* At least one of these has key_values. */
298	if ((ob1->key_values == NULL) != (ob2->key_values == NULL))	381	if (ob1->kv.empty () != ob2->kv.empty ())
299	/* One has fields, but the other one doesn't. */	382	return 0; /* One has fields, but the other one doesn't. */
		383
		384	if (!compare_ob_value_lists (ob1, ob2))
300	return 0;	385	return 0;
301	else if (!compare_ob_value_lists (ob1, ob2))
302	return 0;
303	}	386	}
304		387
305	//TODO: generate an event or call into perl for additional checks
306	if (ob1->self || ob2->self)	388	if (ob1->self || ob2->self)
307	{	389	{
308	ob1->optimise ();	390	ob1->optimise ();
309	ob2->optimise ();	391	ob2->optimise ();
310		392
311	if (ob1->self || ob2->self)	393	if (ob1->self || ob2->self)
		394	{
		395	int k1 = ob1->self ? HvTOTALKEYS (ob1->self) : 0;
		396	int k2 = ob2->self ? HvTOTALKEYS (ob2->self) : 0;
		397
		398	if (k1 != k2)
312	return 0;	399	return 0;
		400
		401	if (k1 == 0)
		402	return 1;
		403
		404	if (!cfperl_can_merge (ob1, ob2))
		405	return 0;
		406	}
313	}	407	}
314		408
315	/* Everything passes, must be OK. */	409	/* Everything passes, must be OK. */
316	return 1;	410	return 1;
317	}	411	}
318		412
		413	// find player who can see this object
		414	object *
		415	object::visible_to () const
		416	{
		417	if (client_visible () && !flag [FLAG_REMOVED])
		418	{
		419	// see if we are in a container of sorts
		420	if (env)
		421	{
		422	// the player inventory itself is always visible
		423	if (env->is_player ())
		424	return env;
		425
		426	// else a player could have our env open
		427	object *envest = env->outer_env_or_self ();
		428
		429	// the player itself is always on a map, so we will find him here
		430	// even if our inv is in a player.
		431	if (envest->is_on_map ())
		432	if (object *pl = envest->ms ().player ())
		433	if (pl->container_ () == env)
		434	return pl;
		435	}
		436	else
		437	{
		438	// maybe there is a player standing on the same mapspace
		439	// this will catch the case where "this" is a player
		440	if (object *pl = ms ().player ())
		441	if ((pl->contr->ns && !pl->container_ () && !pl->contr->ns->update_look)
		442	|| pl->container_ () == this)
		443	return pl;
		444	}
		445	}
		446
		447	return 0;
		448	}
		449
		450	// adjust weight per container type ("of holding")
		451	static uint32
		452	weight_adjust_for (object *op, uint32 weight)
		453	{
		454	return op->type == CONTAINER
		455	? weight - weight * op->stats.Str / 100
		456	: weight;
		457	}
		458
319	/*	459	/*
		460	* subtracts, then adds, the specified weight to an object,
		461	* and also updates how much the environment(s) is/are carrying.
		462	*/
		463	static void
		464	adjust_weight (object *op, sint32 sub, sint32 add)
		465	{
		466	while (op)
		467	{
		468	sint32 ocarrying = op->carrying;
		469
		470	op->carrying -= weight_adjust_for (op, sub);
		471	op->carrying += weight_adjust_for (op, add);
		472
		473	if (object *pl = op->visible_to ())
		474	if (pl != op) // player is handled lazily
		475	esrv_update_item (UPD_WEIGHT, pl, op);
		476
		477	sub = ocarrying;
		478	add = op->carrying;
		479
		480	op = op->env;
		481	}
		482	}
		483
		484	/*
320	* sum_weight() is a recursive function which calculates the weight	485	* this is a recursive function which calculates the weight
321	* an object is carrying. It goes through in figures out how much	486	* an object is carrying. It goes through op and figures out how much
322	* containers are carrying, and sums it up.	487	* containers are carrying, and sums it up.
323	*/	488	*/
324	long	489	void
325	sum_weight (object *op)	490	object::update_weight ()
326	{	491	{
327	long sum;	492	sint32 sum = 0;
328	object *inv;
329		493
330	for (sum = 0, inv = op->inv; inv != NULL; inv = inv->below)	494	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	}	495	{
		496	op->update_weight ();
336		497
337	if (op->type == CONTAINER && op->stats.Str)	498	sum += weight_adjust_for (this, op->total_weight ());
338	sum = (sum * (100 - op->stats.Str)) / 100;	499	}
339		500
340	if (op->carrying != sum)	501	if (sum != carrying)
		502	{
		503	if (carrying != sum && carrying)//D
		504	LOG (llevDebug, "updating carrying got %ld, expected %ld (%s)\n",
		505	(long long)sum, (long long)carrying, debug_desc ());
		506
341	op->carrying = sum;	507	carrying = sum;
342		508
343	return sum;	509	if (object *pl = visible_to ())
		510	if (pl != this) // player is handled lazily
		511	esrv_update_item (UPD_WEIGHT, pl, this);
		512	}
344	}	513	}
345		514
346	/**	515	/*
347	* Return the outermost environment object for a given object.	516	* Used by: Server DM commands: dumpbelow, dump. Some error messages.
348	*/	517	*/
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 *	518	char *
380	dump_object (object *op)	519	dump_object (object *op)
381	{	520	{
382	if (!op)	521	if (!op)
383	return strdup ("[NULLOBJ]");	522	return strdup ("[NULLOBJ]");
384		523
385	object_freezer freezer;	524	object_freezer freezer;
386	save_object (freezer, op, 3);	525	op->write (freezer);
387	return freezer.as_string ();	526	return freezer.as_string ();
388	}	527	}
389		528
390	/*	529	char *
391	* get_nearest_part(multi-object, object 2) returns the part of the	530	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	{	531	{
399	object *tmp, *closest;	532	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	}	533	}
409		534
410	/*	535	/*
411	* Returns the object which has the count-variable equal to the argument.	536	* Returns the object which has the count-variable equal to the argument.
		537	* VERRRY slow.
412	*/	538	*/
413
414	object *	539	object *
415	find_object (tag_t i)	540	find_object (tag_t i)
416	{	541	{
417	for (object *op = object::first; op; op = op->next)	542	for_all_objects (op)
418	if (op->count == i)	543	if (op->count == i)
419	return op;	544	return op;
		545
		546	return 0;
		547	}
		548
		549	/*
		550	* Returns the object which has the uuid equal to the argument.
		551	* MOAR VERRRY slow.
		552	*/
		553
		554	object *
		555	find_object_uuid (UUID i)
		556	{
		557	for_all_objects (op)
		558	if (op->uuid == i)
		559	return op;
420		560
421	return 0;	561	return 0;
422	}	562	}
423		563
424	/*	564	/*
425	* Returns the first object which has a name equal to the argument.	565	* Returns the first object which has a name equal to the argument.
426	* Used only by the patch command, but not all that useful.	566	* Used only by the patch command, but not all that useful.
427	* Enables features like "patch <name-of-other-player> food 999"	567	* Enables features like "patch <name-of-other-player> food 999"
428	*/	568	*/
429
430	object *	569	object *
431	find_object_name (const char *str)	570	find_object_name (const char *str)
432	{	571	{
433	shstr_cmp str_ (str);	572	shstr_cmp str_ (str);
434	object *op;
435		573
436	for (op = object::first; op != NULL; op = op->next)	574	if (str_)
		575	for_all_objects (op)
437	if (op->name == str_)	576	if (op->name == str_)
438	break;	577	return op;
439		578
440	return op;	579	return 0;
441	}
442
443	void
444	free_all_object_data ()
445	{
446	LOG (llevDebug, "%d allocated objects\n", nrofallocobjects);
447	}	580	}
448		581
449	/*	582	/*
450	* Sets the owner and sets the skill and exp pointers to owner's current	583	* Sets the owner and sets the skill and exp pointers to owner's current
451	* skill and experience objects.	584	* skill and experience objects.
		585	* ACTUALLY NO! investigate! TODO
452	*/	586	*/
453	void	587	void
454	object::set_owner (object *owner)	588	object::set_owner (object *owner)
455	{	589	{
		590	// allow objects which own objects
456	if (!owner)	591	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)	592	while (owner->owner)
467	owner = owner->owner;	593	owner = owner->owner;
		594
		595	if (flag [FLAG_FREED])
		596	{
		597	LOG (llevError | logBacktrace, "tried to set owner of %s to %s\n", debug_desc (), owner->debug_desc ());
		598	return;
		599	}
468		600
469	this->owner = owner;	601	this->owner = owner;
470	}	602	}
471		603
472	/* Zero the key_values on op, decrementing the shared-string
473	* refcounts and freeing the links.
474	*/
475	static void
476	free_key_values (object *op)
477	{
478	for (key_value *i = op->key_values; i != 0;)
479	{
480	key_value *next = i->next;
481	delete i;
482
483	i = next;
484	}
485
486	op->key_values = 0;
487	}
488
489	void object::clear ()
490	{
491	attachable_base::clear ();
492
493	free_key_values (this);
494
495	owner = 0;
496	name = 0;
497	name_pl = 0;
498	title = 0;
499	race = 0;
500	slaying = 0;
501	skill = 0;
502	msg = 0;
503	lore = 0;
504	custom_name = 0;
505	materialname = 0;
506	contr = 0;
507	below = 0;
508	above = 0;
509	inv = 0;
510	container = 0;
511	env = 0;
512	more = 0;
513	head = 0;
514	map = 0;
515	active_next = 0;
516	active_prev = 0;
517
518	memset (static_cast<object_pod *>(this), 0, sizeof (object_pod));
519
520	SET_FLAG (this, FLAG_REMOVED);
521
522	/* What is not cleared is next, prev, and count */
523
524	expmul = 1.0;
525	face = blank_face;
526
527	if (settings.casting_time)
528	casting_time = -1;
529	}
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	/*	604	/*
541	* copy object first frees everything allocated by the second object,	605	* copy_to first frees everything allocated by the dst object,
542	* and then copies the contends of the first object into the second	606	* and then copies the contents of itself into the second
543	* object, allocating what needs to be allocated. Basically, any	607	* object, allocating what needs to be allocated. Basically, any
544	* data that is malloc'd needs to be re-malloc/copied. Otherwise,	608	* 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	609	* if the first object is freed, the pointers in the new object
546	* will point at garbage.	610	* will point at garbage.
547	*/	611	*/
548	void	612	void
549	copy_object (object *op2, object *op)	613	object::copy_to (object *dst)
550	{	614	{
551	bool is_freed = QUERY_FLAG (op, FLAG_FREED);	615	dst->remove ();
552	bool is_removed = QUERY_FLAG (op, FLAG_REMOVED);	616	*(object_copy *)dst = *this;
553		617
554	op2->clone (op);	618	// maybe move to object_copy?
		619	dst->kv = kv;
555		620
556	if (is_freed)	621	dst->flag [FLAG_REMOVED] = true;
557	SET_FLAG (op, FLAG_FREED);	622	dst->activate ();
558	if (is_removed)	623	}
559	SET_FLAG (op, FLAG_REMOVED);
560		624
561	if (op2->speed < 0)	625	void
562	op->speed_left = op2->speed_left - RANDOM () % 200 / 100.0;	626	object::instantiate ()
		627	{
		628	if (!uuid.seq) // HACK
		629	uuid = UUID::gen ();
563		630
564	/* Copy over key_values, if any. */	631	// TODO: unclean state changes, should not be done in copy_to AND instantiate
565	if (op2->key_values)	632	if (flag [FLAG_RANDOM_SPEED] && speed)
566	{	633	speed_left = - speed - rndm (); // TODO animation
567	key_value *tail = 0;	634	else
568	key_value *i;	635	speed_left = -1.;
569		636
570	op->key_values = 0;	637	/* copy the body_info to the body_used - this is only really
		638	* need for monsters, but doesn't hurt to do it for everything.
		639	* by doing so, when a monster is created, it has good starting
		640	* values for the body_used info, so when items are created
		641	* for it, they can be properly equipped.
		642	*/
		643	for (int i = NUM_BODY_LOCATIONS; i--; )
		644	slot[i].used = slot[i].info;
571		645
572	for (i = op2->key_values; i; i = i->next)	646	attachable::instantiate ();
573	{	647	}
574	key_value *new_link = new key_value;
575		648
576	new_link->next = 0;	649	object *
577	new_link->key = i->key;	650	object::clone ()
578	new_link->value = i->value;	651	{
		652	object *neu = create ();
		653	copy_to (neu);
579		654
580	/* Try and be clever here, too. */	655	// TODO: unclean state changes, should not be done in clone AND instantiate
581	if (!op->key_values)	656	if (neu->flag [FLAG_RANDOM_SPEED] && neu->speed)
582	{	657	neu->speed_left = - neu->speed - rndm (); // TODO animation
583	op->key_values = new_link;
584	tail = new_link;
585	}
586	else
587	{
588	tail->next = new_link;
589	tail = new_link;
590	}
591	}
592	}
593		658
594	update_ob_speed (op);	659	neu->map = map; // not copied by copy_to
		660	return neu;
595	}	661	}
596		662
597	/*	663	/*
598	* If an object with the IS_TURNABLE() flag needs to be turned due	664	* If an object with the IS_TURNABLE() flag needs to be turned due
599	* to the closest player being on the other side, this function can	665	* to the closest player being on the other side, this function can
600	* be called to update the face variable, _and_ how it looks on the map.	666	* be called to update the face variable, _and_ how it looks on the map.
601	*/	667	*/
602
603	void	668	void
604	update_turn_face (object *op)	669	update_turn_face (object *op)
605	{	670	{
606	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || op->arch == NULL)	671	if (!op->flag [FLAG_IS_TURNABLE] || !op->arch)
607	return;	672	return;
		673
608	SET_ANIMATION (op, op->direction);	674	SET_ANIMATION (op, op->direction);
609	update_object (op, UP_OBJ_FACE);	675	update_object (op, UP_OBJ_FACE);
610	}	676	}
611		677
612	/*	678	/*
613	* Updates the speed of an object. If the speed changes from 0 to another	679	* Updates the speed of an object. If the speed changes from 0 to another
614	* value, or vice versa, then add/remove the object from the active list.	680	* value, or vice versa, then add/remove the object from the active list.
615	* This function needs to be called whenever the speed of an object changes.	681	* This function needs to be called whenever the speed of an object changes.
616	*/	682	*/
617	void	683	void
618	update_ob_speed (object *op)	684	object::set_speed (float speed)
619	{	685	{
620	extern int arch_init;	686	this->speed = speed;
621		687
622	/* No reason putting the archetypes objects on the speed list,	688	if (has_active_speed ())
623	* since they never really need to be updated.	689	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	690	else
655	{	691	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	}	692	}
679		693
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	/*	694	/*
712	* update_object() updates the array which represents the map.	695	* update_object() updates the the map.
713	* It takes into account invisible objects (and represent squares covered	696	* It takes into account invisible objects (and represent squares covered
714	* by invisible objects by whatever is below them (unless it's another	697	* by invisible objects by whatever is below them (unless it's another
715	* invisible object, etc...)	698	* invisible object, etc...)
716	* If the object being updated is beneath a player, the look-window	699	* 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	700	* of that player is updated (this might be a suboptimal way of
718	* updating that window, though, since update_object() is called _often_)	701	* updating that window, though, since update_object() is called _often_)
719	*	702	*
720	* action is a hint of what the caller believes need to be done.	703	* 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:	704	* current action are:
726	* UP_OBJ_INSERT: op was inserted	705	* UP_OBJ_INSERT: op was inserted
727	* UP_OBJ_REMOVE: op was removed	706	* UP_OBJ_REMOVE: op was removed
728	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update	707	* 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.	708	* as that is easier than trying to look at what may have changed.
730	* UP_OBJ_FACE: only the objects face has changed.	709	* UP_OBJ_FACE: only the objects face has changed.
731	*/	710	*/
732
733	void	711	void
734	update_object (object *op, int action)	712	update_object (object *op, int action)
735	{	713	{
736	int update_now = 0, flags;	714	if (!op)
737	MoveType move_on, move_off, move_block, move_slow;
738
739	if (op == NULL)
740	{	715	{
741	/* this should never happen */	716	/* this should never happen */
742	LOG (llevDebug, "update_object() called for NULL object.\n");	717	LOG (llevError | logBacktrace, "update_object() called for NULL object.\n");
743	return;	718	return;
744	}	719	}
745		720
746	if (op->env != NULL)	721	if (!op->is_on_map ())
747	{	722	{
748	/* Animation is currently handled by client, so nothing	723	/* Animation is currently handled by client, so nothing
749	* to do in this case.	724	* to do in this case.
750	*/	725	*/
751	return;	726	return;
752	}	727	}
753		728
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 */	729	/* 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))	730	if (op->x < 0 || op->x >= op->map->width || op->y < 0 || op->y >= op->map->height)
762	{	731	{
763	LOG (llevError, "update_object() called for object out of map!\n");	732	LOG (llevError, "update_object() called for object out of map!\n");
764	#ifdef MANY_CORES	733	#ifdef MANY_CORES
765	abort ();	734	abort ();
766	#endif	735	#endif
767	return;	736	return;
768	}	737	}
769		738
770	flags = GET_MAP_FLAGS (op->map, op->x, op->y);	739	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		740
		741	if (!(m.flags_ & P_UPTODATE))
		742	/* nop */;
777	if (action == UP_OBJ_INSERT)	743	else if (action == UP_OBJ_INSERT)
778	{	744	{
		745	#if 0
		746	// this is likely overkill, TODO: revisit (schmorp)
779	if (QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(flags & P_BLOCKSVIEW))	747	if ((op->flag [FLAG_BLOCKSVIEW] && !(m.flags_ & P_BLOCKSVIEW))
780	update_now = 1;	748	|| (op->flag [FLAG_NO_MAGIC] && !(m.flags_ & P_NO_MAGIC))
781		749	|| (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))	750	|| (op->type == SAFE_GROUND && !(m.flags_ & P_SAFE))
792	update_now = 1;	751	|| (op->flag [FLAG_ALIVE] && !(m.flags_ & P_IS_ALIVE))
793		752	|| (op->flag [FLAG_DAMNED] && !(m.flags_ & P_NO_CLERIC))
794	if ((move_on | op->move_on) != move_on)	753	|| (m.move_on | op->move_on ) != m.move_on
795	update_now = 1;
796
797	if ((move_off | op->move_off) != move_off)	754	|| (m.move_off | op->move_off ) != m.move_off
798	update_now = 1;	755	|| (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	756	/* This isn't perfect, but I don't expect a lot of objects to
801	* to have move_allow right now.	757	* have move_allow right now.
802	*/	758	*/
803	if (((move_block | op->move_block) & ~op->move_allow) != move_block)	759	|| ((m.move_block | op->move_block) & ~op->move_allow) != m.move_block
804	update_now = 1;	760	m.invalidate ();
805		761	#else
806	if ((move_slow | op->move_slow) != move_slow)	762	// the above is not strong enough a test to skip updating. los maybe? TODO (schmorp)
807	update_now = 1;	763	m.invalidate ();
		764	#endif
808	}	765	}
809	/* if the object is being removed, we can't make intelligent	766	/* if the object is being removed, we can't make intelligent
810	* decisions, because remove_ob can't really pass the object	767	* decisions, because remove_ob can't really pass the object
811	* that is being removed.	768	* that is being removed.
812	*/	769	*/
813	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)	770	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)
814	update_now = 1;	771	m.invalidate ();
815	else if (action == UP_OBJ_FACE)	772	else if (action == UP_OBJ_FACE)
816	/* Nothing to do for that case */ ;	773	/* Nothing to do for that case */ ;
817	else	774	else
818	LOG (llevError, "update_object called with invalid action: %d\n", action);	775	LOG (llevError, "update_object called with invalid action: %d\n", action);
819		776
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)	777	if (op->more)
827	update_object (op->more, action);	778	update_object (op->more, action);
828	}	779	}
829		780
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 ()	781	object::object ()
855	{	782	{
856	SET_FLAG (this, FLAG_REMOVED);	783	this->set_flag (FLAG_REMOVED);
857		784
858	expmul = 1.0;	785	//expmul = 1.0; declared const for the time being
859	face = blank_face;	786	face = blank_face;
		787	material = MATERIAL_NULL;
860	}	788	}
861		789
862	object::~object ()	790	object::~object ()
863	{	791	{
864	free_key_values (this);	792	unlink ();
		793
		794	kv.clear ();
865	}	795	}
866		796
867	void object::link ()	797	void object::link ()
868	{	798	{
869	count = ++ob_count;	799	assert (!index);//D
870	uuid = gen_uuid ();	800	uuid = UUID::gen ();
871		801
872	prev = 0;	802	refcnt_inc ();
873	next = object::first;	803	objects.insert (this);
874		804
875	if (object::first)	805	++create_count;
876	object::first->prev = this;
877		806
878	object::first = this;
879	}	807	}
880		808
881	void object::unlink ()	809	void object::unlink ()
882	{	810	{
883	if (this == object::first)	811	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;	812	return;
915		813
916	if (QUERY_FLAG (this, FLAG_FRIENDLY))	814	++destroy_count;
917	remove_friendly_object (this);
918		815
919	if (!QUERY_FLAG (this, FLAG_REMOVED))	816	objects.erase (this);
920	remove_ob (this);	817	refcnt_dec ();
		818	}
921		819
922	SET_FLAG (this, FLAG_FREED);	820	void
		821	object::activate ()
		822	{
		823	/* If already on active list, don't do anything */
		824	if (active)
		825	return;
923		826
924	if (more)	827	if (has_active_speed ())
925	{
926	more->destroy (destroy_inventory);
927	more = 0;
928	}	828	{
		829	if (flag [FLAG_FREED])
		830	LOG (llevError | logBacktrace, "BUG: tried to activate freed object %s\n", debug_desc ());//D
929		831
		832	actives.insert (this);
		833	}
		834	}
		835
		836	void
		837	object::activate_recursive ()
		838	{
		839	activate ();
		840
		841	for (object *op = inv; op; op = op->below)
		842	op->activate_recursive ();
		843	}
		844
		845	/* This function removes object 'op' from the list of active
		846	* objects.
		847	* This should only be used for style maps or other such
		848	* reference maps where you don't want an object that isn't
		849	* in play chewing up cpu time getting processed.
		850	* The reverse of this is to call update_ob_speed, which
		851	* will do the right thing based on the speed of the object.
		852	*/
		853	void
		854	object::deactivate ()
		855	{
		856	/* If not on the active list, nothing needs to be done */
		857	if (!active)
		858	return;
		859
		860	actives.erase (this);
		861	}
		862
		863	void
		864	object::deactivate_recursive ()
		865	{
		866	for (object *op = inv; op; op = op->below)
		867	op->deactivate_recursive ();
		868
		869	deactivate ();
		870	}
		871
		872	void
		873	object::set_flag_inv (int flag, int value)
		874	{
		875	for (object *op = inv; op; op = op->below)
		876	{
		877	op->flag [flag] = value;
		878	op->set_flag_inv (flag, value);
		879	}
		880	}
		881
		882	/*
		883	* Remove and free all objects in the inventory of the given object.
		884	* object.c ?
		885	*/
		886	void
		887	object::destroy_inv (bool drop_to_ground)
		888	{
		889	// need to check first, because the checks below might segfault
		890	// as we might be on an invalid mapspace and crossfire code
		891	// is too buggy to ensure that the inventory is empty.
		892	// corollary: if you create arrows etc. with stuff in its inventory,
		893	// cf will crash below with off-map x and y
930	if (inv)	894	if (!inv)
931	{	895	return;
		896
932	/* Only if the space blocks everything do we not process -	897	/* Only if the space blocks everything do we not process -
933	* if some form of movement is allowed, let objects	898	* if some form of movement is allowed, let objects
934	* drop on that space.	899	* drop on that space.
935	*/	900	*/
936	if (destroy_inventory || !map || map->in_memory != MAP_IN_MEMORY || GET_MAP_MOVE_BLOCK (map, x, y) == MOVE_ALL)	901	if (!drop_to_ground
		902	|| !map
		903	|| !map->linkable ()
		904	|| map->no_drop
		905	|| ms ().move_block == MOVE_ALL)
		906	{
		907	while (inv)
		908	inv->destroy ();
		909	}
		910	else
		911	{ /* Put objects in inventory onto this space */
		912	while (inv)
937	{	913	{
938	object *op = inv;	914	object *op = inv;
939		915
940	while (op)	916	if (op->flag [FLAG_STARTEQUIP]
941	{	917	|| op->flag [FLAG_NO_DROP]
942	object *tmp = op->below;	918	|| op->type == RUNE
943	op->destroy (destroy_inventory);	919	|| op->type == TRAP
944	op = tmp;	920	|| op->flag [FLAG_IS_A_TEMPLATE]
945	}	921	|| op->flag [FLAG_DESTROY_ON_DEATH])
		922	op->destroy ();
		923	else
		924	map->insert (op, x, y);
946	}	925	}
947	else	926	}
948	{ /* Put objects in inventory onto this space */	927	}
949	object *op = inv;
950		928
951	while (op)	929	/*
952	{	930	* Remove and free all objects in the inventory of the given object.
953	object *tmp = op->below;	931	* Unlike destroy_inv, this assumes the *this is destroyed as well
954		932	* well, so we can (and have to!) take shortcuts.
955	remove_ob (op);	933	*/
956		934	void
957	if (QUERY_FLAG (op, FLAG_STARTEQUIP)	935	object::destroy_inv_fast ()
958	|| QUERY_FLAG (op, FLAG_NO_DROP) || op->type == RUNE || op->type == TRAP || QUERY_FLAG (op, FLAG_IS_A_TEMPLATE))	936	{
959	free_object (op);	937	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	}	938	{
		939	// remove from object the fast way
		940	op->flag [FLAG_REMOVED] = true;
		941	op->env = 0;
		942	if ((inv = inv->below))
		943	inv->above = 0;
		944
		945	// then destroy
		946	op->destroy ();
		947	}
		948	}
		949
		950	void
		951	object::freelist_free (int count)
		952	{
		953	while (count-- && freelist)
		954	{
		955	freelist_item *next = freelist->next;
		956	// count is being "destroyed"
		957
		958	sfree ((char *)freelist, sizeof (object));
		959
		960	freelist = next;
		961	--free_count;
		962	}
		963	}
		964
		965	object *
		966	object::create ()
		967	{
		968	object *op;
		969
		970	if (freelist)
		971	{
		972	freelist_item li = *freelist;
		973	memset (freelist, 0, sizeof (object));
		974
		975	op = new (freelist) object;
		976	op->count = li.count;
		977
		978	freelist = li.next;
		979	--free_count;
		980	}
		981	else
		982	{
		983	void *ni = salloc0<char> (sizeof (object));
		984
		985	op = new(ni) object;
		986
		987	op->count = ++object_count;
		988	}
		989
		990	op->link ();
		991
		992	return op;
		993	}
		994
		995	void
		996	object::do_delete ()
		997	{
		998	uint32_t count = this->count;
		999
		1000	this->~object ();
		1001
		1002	freelist_item *li = (freelist_item *)this;
		1003	li->next = freelist;
		1004	li->count = count;
		1005
		1006	freelist = li;
		1007	++free_count;
		1008	}
		1009
		1010	static struct freed_map : maptile
		1011	{
		1012	freed_map ()
		1013	: maptile (3, 3)
		1014	{
		1015	path = "<freed objects map>";
		1016	name = "/internal/freed_objects_map";
		1017	no_drop = 1;
		1018	no_reset = 1;
		1019
		1020	state = MAP_ACTIVE;
		1021	}
		1022
		1023	~freed_map ()
		1024	{
		1025	destroy ();
		1026	}
		1027	} freed_map; // freed objects are moved here to avoid crashes
		1028
		1029	void
		1030	object::do_destroy ()
		1031	{
		1032	if (flag [FLAG_IS_LINKED])
		1033	remove_link ();
		1034
		1035	if (flag [FLAG_FRIENDLY])
		1036	remove_friendly_object (this);
		1037
		1038	remove ();
		1039
		1040	attachable::do_destroy ();
		1041
		1042	deactivate ();
		1043	unlink ();
		1044
		1045	flag [FLAG_FREED] = 1;
971		1046
972	// hack to ensure that freed objects still have a valid map	1047	// hack to ensure that freed objects still have a valid map
973	{
974	static maptile *freed_map; // freed objects are moved here to avoid crashes
975
976	if (!freed_map)
977	{
978	freed_map = new maptile;
979
980	freed_map->name = "/internal/freed_objects_map";
981	freed_map->width = 3;
982	freed_map->height = 3;
983
984	freed_map->allocate ();
985	}
986
987	map = freed_map;	1048	map = &freed_map;
988	x = 1;	1049	x = 1;
989	y = 1;	1050	y = 1;
		1051
		1052	if (more)
		1053	{
		1054	more->destroy ();
		1055	more = 0;
990	}	1056	}
991		1057
		1058	head = 0;
		1059
992	// clear those pointers that likely might have circular references to us	1060	// clear those pointers that likely might cause circular references
993	owner = 0;	1061	owner = 0;
994	enemy = 0;	1062	enemy = 0;
995	attacked_by = 0;	1063	attacked_by = 0;
996		1064	current_weapon = 0;
997	// only relevant for players(?), but make sure of it anyways
998	contr = 0;
999
1000	/* Remove object from the active list */
1001	speed = 0;
1002	update_ob_speed (this);
1003
1004	unlink ();
1005
1006	mortals.push_back (this);
1007	}	1065	}
1008		1066
1009	/*
1010	* sub_weight() recursively (outwards) subtracts a number from the
1011	* weight of an object (and what is carried by it's environment(s)).
1012	*/
1013
1014	void	1067	void
1015	sub_weight (object *op, signed long weight)	1068	object::destroy ()
1016	{	1069	{
1017	while (op != NULL)	1070	if (destroyed ())
1018	{	1071	return;
1019	if (op->type == CONTAINER)
1020	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1021		1072
1022	op->carrying -= weight;	1073	if (!is_head () && !head->destroyed ())
1023	op = op->env;
1024	}	1074	{
1025	}	1075	LOG (llevError | logBacktrace, "tried to destroy the tail of an object");
		1076	head->destroy ();
		1077	return;
		1078	}
1026		1079
1027	/* remove_ob(op):	1080	destroy_inv_fast ();
		1081
		1082	if (is_head ())
		1083	if (sound_destroy)
		1084	play_sound (sound_destroy);
		1085	else if (flag [FLAG_MONSTER])
		1086	play_sound (sound_find ("monster_destroy")); // quick hack, too lazy to create a generic mechanism
		1087
		1088	attachable::destroy ();
		1089	}
		1090
		1091	/* op->remove ():
1028	* This function removes the object op from the linked list of objects	1092	* This function removes the object op from the linked list of objects
1029	* which it is currently tied to. When this function is done, the	1093	* which it is currently tied to. When this function is done, the
1030	* object will have no environment. If the object previously had an	1094	* object will have no environment. If the object previously had an
1031	* environment, the x and y coordinates will be updated to	1095	* environment, the x and y coordinates will be updated to
1032	* the previous environment.	1096	* the previous environment.
1033	* Beware: This function is called from the editor as well!
1034	*/	1097	*/
1035
1036	void	1098	void
1037	remove_ob (object *op)	1099	object::do_remove ()
1038	{	1100	{
1039	object *tmp, *last = 0;	1101	if (flag [FLAG_REMOVED])
1040	object *otmp;
1041
1042	int check_walk_off;
1043	maptile *m;
1044
1045	sint16 x, y;
1046
1047	if (QUERY_FLAG (op, FLAG_REMOVED))
1048	return;	1102	return;
1049		1103
1050	SET_FLAG (op, FLAG_REMOVED);	1104	INVOKE_OBJECT (REMOVE, this);
1051		1105
1052	if (op->more != NULL)	1106	flag [FLAG_REMOVED] = true;
1053	remove_ob (op->more);	1107
		1108	if (more)
		1109	more->remove ();
1054		1110
1055	/*	1111	/*
1056	* In this case, the object to be removed is in someones	1112	* In this case, the object to be removed is in someones
1057	* inventory.	1113	* inventory.
1058	*/	1114	*/
1059	if (op->env != NULL)	1115	if (env)
1060	{	1116	{
1061	if (op->nrof)	1117	flag [FLAG_REMOVED] = false; // hack around the issue of visible_to checking flag_removed
1062	sub_weight (op->env, op->weight * op->nrof);	1118	if (object *pl = visible_to ())
1063	else	1119	esrv_del_item (pl->contr, count);
1064	sub_weight (op->env, op->weight + op->carrying);	1120	flag [FLAG_REMOVED] = true; // hack around the issue of visible_to checking flag_removed
1065		1121
1066	/* NO_FIX_PLAYER is set when a great many changes are being	1122	adjust_weight (env, total_weight (), 0);
1067	* made to players inventory. If set, avoiding the call
1068	* to save cpu time.
1069	*/
1070	if ((otmp = is_player_inv (op->env)) != NULL && otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1071	fix_player (otmp);
1072		1123
1073	if (op->above != NULL)	1124	object *pl = in_player ();
1074	op->above->below = op->below;
1075	else
1076	op->env->inv = op->below;
1077
1078	if (op->below != NULL)
1079	op->below->above = op->above;
1080		1125
1081	/* we set up values so that it could be inserted into	1126	/* we set up values so that it could be inserted into
1082	* the map, but we don't actually do that - it is up	1127	* the map, but we don't actually do that - it is up
1083	* to the caller to decide what we want to do.	1128	* to the caller to decide what we want to do.
1084	*/	1129	*/
1085	op->x = op->env->x, op->y = op->env->y;
1086	op->map = op->env->map;	1130	map = env->map;
1087	op->above = NULL, op->below = NULL;
1088	op->env = NULL;
1089	}
1090	else if (op->map)
1091	{
1092	x = op->x;	1131	x = env->x;
1093	y = op->y;	1132	y = env->y;
1094	m = get_map_from_coord (op->map, &x, &y);
1095		1133
1096	if (!m)	1134	// make sure cmov optimisation is applicable
		1135	*(above ? &above->below : &env->inv) = below;
		1136	*(below ? &below->above : &above ) = above; // &above is just a dummy
		1137
		1138	above = 0;
		1139	below = 0;
		1140	env = 0;
		1141
		1142	if (pl && pl->is_player ())
1097	{	1143	{
1098	LOG (llevError, "remove_ob called when object was on map but appears to not be within valid coordinates? %s (%d,%d)\n",	1144	if (expect_false (pl->contr->combat_ob == this))
1099	op->map->path, op->x, op->y);
1100	/* in old days, we used to set x and y to 0 and continue.
1101	* it seems if we get into this case, something is probablye
1102	* screwed up and should be fixed.
1103	*/	1145	{
1104	abort ();	1146	pl->apply (pl->contr->combat_ob, AP_UNAPPLY | AP_IGNORE_CURSE);
		1147	pl->contr->combat_ob = 0;
		1148	if (pl->contr->ranged_ob) pl->apply (pl->contr->ranged_ob);
		1149	}
		1150
		1151	if (expect_false (pl->contr->ranged_ob == this))
		1152	{
		1153	pl->apply (pl->contr->ranged_ob, AP_UNAPPLY | AP_IGNORE_CURSE);
		1154	pl->contr->ranged_ob = 0;
		1155	if (pl->contr->combat_ob) pl->apply (pl->contr->combat_ob);
		1156	}
		1157
		1158	pl->contr->queue_stats_update ();
		1159
		1160	if (expect_false (glow_radius) && pl->is_on_map ())
		1161	update_all_los (pl->map, pl->x, pl->y);
1105	}	1162	}
		1163	}
		1164	else if (map)
		1165	{
		1166	map->dirty = true;
		1167	mapspace &ms = this->ms ();
1106		1168
1107	if (op->map != m)	1169	if (object *pl = ms.player ())
1108	LOG (llevDebug, "remove_ob: Object not really on map it claimed to be on? %s != %s, %d,%d != %d,%d\n",
1109	op->map->path, m->path, op->x, op->y, x, y);
1110
1111	/* Re did the following section of code - it looks like it had
1112	* lots of logic for things we no longer care about
1113	*/	1170	{
		1171	if (is_player ())
		1172	{
		1173	if (!flag [FLAG_WIZPASS])
		1174	ms.smell = ++mapspace::smellcount; // remember the smell of the player
		1175
		1176	// leaving a spot always closes any open container on the ground
		1177	if (container && !container->env)
		1178	// this causes spurious floorbox updates, but it ensures
		1179	// that the CLOSE event is being sent.
		1180	close_container ();
		1181
		1182	--map->players;
		1183	map->touch ();
		1184	}
		1185	else if (pl->container_ () == this)
		1186	{
		1187	// removing a container should close it
		1188	close_container ();
		1189	}
		1190	else
		1191	esrv_del_item (pl->contr, count);
		1192	}
1114		1193
1115	/* link the object above us */	1194	/* link the object above us */
1116	if (op->above)	1195	// re-link, make sure compiler can easily use cmove
1117	op->above->below = op->below;	1196	*(above ? &above->below : &ms.top) = below;
1118	else	1197	*(below ? &below->above : &ms.bot) = above;
1119	SET_MAP_TOP (m, x, y, op->below); /* we were top, set new top */
1120		1198
1121	/* Relink the object below us, if there is one */	1199	above = 0;
1122	if (op->below)	1200	below = 0;
1123	op->below->above = op->above;	1201
1124	else	1202	ms.invalidate ();
		1203
		1204	int check_walk_off = !flag [FLAG_NO_APPLY];
		1205
		1206	if (object *pl = ms.player ())
1125	{	1207	{
1126	/* Nothing below, which means we need to relink map object for this space	1208	if (pl->container_ () == this)
1127	* use translated coordinates in case some oddness with map tiling is	1209	/* If a container that the player is currently using somehow gets
1128	* evident	1210	* removed (most likely destroyed), update the player view
		1211	* appropriately.
1129	*/	1212	*/
1130	if (GET_MAP_OB (m, x, y) != op)	1213	pl->close_container ();
1131	{
1132	char *dump = dump_object (op);
1133	LOG (llevError,
1134	"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);
1135	free (dump);
1136	dump = dump_object (GET_MAP_OB (m, x, y));
1137	LOG (llevError, "%s\n", dump);
1138	free (dump);
1139	}
1140		1214
1141	SET_MAP_OB (m, x, y, op->above); /* goes on above it. */	1215	//TODO: the floorbox prev/next might need updating
		1216	//esrv_del_item (pl->contr, count);
		1217	//TODO: update floorbox to preserve ordering
		1218	if (pl->contr->ns)
		1219	pl->contr->ns->floorbox_update ();
1142	}	1220	}
1143		1221
1144	op->above = 0;	1222	if (check_walk_off)
1145	op->below = 0;	1223	for (object *above, *tmp = ms.bot; tmp; tmp = above)
1146
1147	if (op->map->in_memory == MAP_SAVING)
1148	return;
1149
1150	check_walk_off = !QUERY_FLAG (op, FLAG_NO_APPLY);
1151
1152	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)
1153	{	1224	{
		1225	above = tmp->above;
		1226
1154	/* No point updating the players look faces if he is the object	1227	/* No point updating the players look faces if he is the object
1155	* being removed.	1228	* being removed.
1156	*/
1157
1158	if (tmp->type == PLAYER && tmp != op)
1159	{
1160	/* If a container that the player is currently using somehow gets
1161	* removed (most likely destroyed), update the player view
1162	* appropriately.
1163	*/	1229	*/
1164	if (tmp->container == op)
1165	{
1166	CLEAR_FLAG (op, FLAG_APPLIED);
1167	tmp->container = NULL;
1168	}
1169		1230
1170	tmp->contr->socket.update_look = 1;
1171	}
1172
1173	/* See if player moving off should effect something */	1231	/* See if object moving off should effect something */
1174	if (check_walk_off
1175	&& ((op->move_type & tmp->move_off)	1232	if ((move_type & tmp->move_off)
1176	&& (op->move_type & ~tmp->move_off & ~tmp->move_block) == 0))	1233	&& (move_type & ~tmp->move_off & ~tmp->move_block) == 0)
1177	{
1178	move_apply (tmp, op, NULL);	1234	move_apply (tmp, this, 0);
1179
1180	if (op->destroyed ())
1181	LOG (llevError, "BUG: remove_ob(): name %s, destroyed leaving object\n", tmp->debug_desc ());
1182	}	1235	}
1183		1236
1184	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */	1237	if (affects_los ())
1185
1186	if (tmp->above == tmp)
1187	tmp->above = NULL;
1188
1189	last = tmp;
1190	}
1191
1192	/* last == NULL of there are no objects on this space */
1193	if (last == NULL)
1194	{
1195	/* set P_NEED_UPDATE, otherwise update_position will complain. In theory,
1196	* we could preserve the flags (GET_MAP_FLAGS), but update_position figures
1197	* those out anyways, and if there are any flags set right now, they won't
1198	* be correct anyways.
1199	*/
1200	SET_MAP_FLAGS (op->map, op->x, op->y, P_NEED_UPDATE);
1201	update_position (op->map, op->x, op->y);
1202	}
1203	else
1204	update_object (last, UP_OBJ_REMOVE);
1205
1206	if (QUERY_FLAG (op, FLAG_BLOCKSVIEW) || (op->glow_radius != 0))
1207	update_all_los (op->map, op->x, op->y);	1238	update_all_los (map, x, y);
1208	}	1239	}
1209	}	1240	}
1210		1241
1211	/*	1242	/*
1212	* merge_ob(op,top):	1243	* merge_ob(op,top):
…		…
1220	merge_ob (object *op, object *top)	1251	merge_ob (object *op, object *top)
1221	{	1252	{
1222	if (!op->nrof)	1253	if (!op->nrof)
1223	return 0;	1254	return 0;
1224		1255
1225	if (top == NULL)	1256	if (!top)
1226	for (top = op; top != NULL && top->above != NULL; top = top->above);	1257	for (top = op; top && top->above; top = top->above)
		1258	;
1227		1259
1228	for (; top != NULL; top = top->below)	1260	for (; top; top = top->below)
1229	{	1261	if (object::can_merge (op, top))
1230	if (top == op)
1231	continue;
1232	if (CAN_MERGE (op, top))
1233	{	1262	{
1234	top->nrof += op->nrof;	1263	top->nrof += op->nrof;
1235		1264
1236	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/	1265	if (object *pl = top->visible_to ())
1237	op->weight = 0; /* Don't want any adjustements now */	1266	esrv_update_item (UPD_NROF, pl, top);
1238	remove_ob (op);	1267
1239	free_object (op);	1268	op->weight = 0; // cancel the addition above
		1269	op->carrying = 0; // must be 0 already
		1270
		1271	op->destroy ();
		1272
1240	return top;	1273	return top;
1241	}	1274	}
1242	}
1243		1275
1244	return 0;	1276	return 0;
1245	}	1277	}
1246		1278
		1279	void
		1280	object::expand_tail ()
		1281	{
		1282	if (more)
		1283	return;
		1284
		1285	object *prev = this;
		1286
		1287	for (archetype *at = (archetype *)arch->more; at; at = (archetype *)at->more)
		1288	{
		1289	object *op = at->instance ();
		1290
		1291	op->name = name;
		1292	op->name_pl = name_pl;
		1293	op->title = title;
		1294
		1295	op->head = this;
		1296	prev->more = op;
		1297
		1298	prev = op;
		1299	}
		1300	}
		1301
1247	/*	1302	/*
1248	* same as insert_ob_in_map except it handle separate coordinates and do a clean	1303	* same as insert_ob_in_map except it handles separate coordinates and does a clean
1249	* job preparing multi-part monsters	1304	* job preparing multi-part monsters.
1250	*/	1305	*/
1251	object *	1306	object *
1252	insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)	1307	insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)
1253	{	1308	{
1254	object *tmp;	1309	op->remove ();
1255		1310
1256	if (op->head)
1257	op = op->head;
1258
1259	for (tmp = op; tmp; tmp = tmp->more)	1311	for (object *tmp = op->head_ (); tmp; tmp = tmp->more)
1260	{	1312	{
1261	tmp->x = x + tmp->arch->clone.x;	1313	tmp->x = x + tmp->arch->x;
1262	tmp->y = y + tmp->arch->clone.y;	1314	tmp->y = y + tmp->arch->y;
1263	}	1315	}
1264		1316
1265	return insert_ob_in_map (op, m, originator, flag);	1317	return insert_ob_in_map (op, m, originator, flag);
1266	}	1318	}
1267		1319
…		…
1280	* Passing 0 for flag gives proper default values, so flag really only needs	1332	* Passing 0 for flag gives proper default values, so flag really only needs
1281	* to be set if special handling is needed.	1333	* to be set if special handling is needed.
1282	*	1334	*
1283	* Return value:	1335	* Return value:
1284	* new object if 'op' was merged with other object	1336	* new object if 'op' was merged with other object
1285	* NULL if 'op' was destroyed	1337	* NULL if there was an error (destroyed, blocked etc.)
1286	* just 'op' otherwise	1338	* just 'op' otherwise
1287	*/	1339	*/
1288
1289	object *	1340	object *
1290	insert_ob_in_map (object *op, maptile *m, object *originator, int flag)	1341	insert_ob_in_map (object *op, maptile *m, object *originator, int flag)
1291	{	1342	{
1292	object *tmp, *top, *floor = NULL;	1343	op->remove ();
1293	sint16 x, y;
1294		1344
1295	if (QUERY_FLAG (op, FLAG_FREED))	1345	if (m == &freed_map)//D TODO: remove soon
1296	{	1346	{//D
1297	LOG (llevError, "Trying to insert freed object!\n");	1347	LOG (llevError | logBacktrace, "tries to insert object on freed objects map: %s", op->debug_desc ());//D
1298	return NULL;
1299	}	1348	}//D
1300
1301	if (m == NULL)
1302	{
1303	char *dump = dump_object (op);
1304	LOG (llevError, "Trying to insert in null-map!\n%s\n", dump);
1305	free (dump);
1306	return op;
1307	}
1308
1309	if (out_of_map (m, op->x, op->y))
1310	{
1311	char *dump = dump_object (op);
1312	LOG (llevError, "Trying to insert object outside the map.\n%s\n", dump);
1313	#ifdef MANY_CORES
1314	/* Better to catch this here, as otherwise the next use of this object
1315	* is likely to cause a crash. Better to find out where it is getting
1316	* improperly inserted.
1317	*/
1318	abort ();
1319	#endif
1320	free (dump);
1321	return op;
1322	}
1323
1324	if (!QUERY_FLAG (op, FLAG_REMOVED))
1325	{
1326	char *dump = dump_object (op);
1327	LOG (llevError, "Trying to insert (map) inserted object.\n%s\n", dump);
1328	free (dump);
1329	return op;
1330	}
1331
1332	if (op->more != NULL)
1333	{
1334	/* The part may be on a different map. */
1335
1336	object *more = op->more;
1337
1338	/* We really need the caller to normalize coordinates - if
1339	* we set the map, that doesn't work if the location is within
1340	* a map and this is straddling an edge. So only if coordinate
1341	* is clear wrong do we normalize it.
1342	*/
1343	if (OUT_OF_REAL_MAP (more->map, more->x, more->y))
1344	more->map = get_map_from_coord (m, &more->x, &more->y);
1345	else if (!more->map)
1346	{
1347	/* For backwards compatibility - when not dealing with tiled maps,
1348	* more->map should always point to the parent.
1349	*/
1350	more->map = m;
1351	}
1352
1353	if (insert_ob_in_map (more, more->map, originator, flag) == NULL)
1354	{
1355	if (!op->head)
1356	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");
1357
1358	return NULL;
1359	}
1360	}
1361
1362	CLEAR_FLAG (op, FLAG_REMOVED);
1363		1349
1364	/* Ideally, the caller figures this out. However, it complicates a lot	1350	/* Ideally, the caller figures this out. However, it complicates a lot
1365	* of areas of callers (eg, anything that uses find_free_spot would now	1351	* of areas of callers (eg, anything that uses find_free_spot would now
1366	* need extra work	1352	* need extra work
1367	*/	1353	*/
1368	op->map = get_map_from_coord (m, &op->x, &op->y);	1354	maptile *newmap = m;
1369	x = op->x;	1355	if (!xy_normalise (newmap, op->x, op->y))
1370	y = op->y;	1356	{
		1357	op->head_ ()->destroy ();// remove head_ once all tail object destroyers found
		1358	return 0;
		1359	}
		1360
		1361	if (object *more = op->more)
		1362	if (!insert_ob_in_map (more, m, originator, flag))
		1363	return 0;
		1364
		1365	op->flag [FLAG_REMOVED] = false;
		1366	op->env = 0;
		1367	op->map = newmap;
		1368
		1369	mapspace &ms = op->ms ();
1371		1370
1372	/* this has to be done after we translate the coordinates.	1371	/* this has to be done after we translate the coordinates.
1373	*/	1372	*/
1374	if (op->nrof && !(flag & INS_NO_MERGE))	1373	if (op->nrof && !(flag & INS_NO_MERGE))
1375	for (tmp = GET_MAP_OB (op->map, x, y); tmp != NULL; tmp = tmp->above)	1374	for (object *tmp = ms.bot; tmp; tmp = tmp->above)
1376	if (CAN_MERGE (op, tmp))	1375	if (object::can_merge (op, tmp))
1377	{	1376	{
		1377	// TODO: we actually want to update tmp, not op,
		1378	// but some caller surely breaks when we return tmp
		1379	// from here :/
1378	op->nrof += tmp->nrof;	1380	op->nrof += tmp->nrof;
1379	remove_ob (tmp);	1381	tmp->destroy ();
1380	free_object (tmp);
1381	}	1382	}
1382		1383
1383	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */	1384	op->clr_flag (FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */
1384	CLEAR_FLAG (op, FLAG_INV_LOCKED);	1385	op->clr_flag (FLAG_INV_LOCKED);
1385		1386
1386	if (!QUERY_FLAG (op, FLAG_ALIVE))	1387	if (!op->flag [FLAG_ALIVE])
1387	CLEAR_FLAG (op, FLAG_NO_STEAL);	1388	op->clr_flag (FLAG_NO_STEAL);
1388		1389
1389	if (flag & INS_BELOW_ORIGINATOR)	1390	if (flag & INS_BELOW_ORIGINATOR)
1390	{	1391	{
1391	if (originator->map != op->map || originator->x != op->x || originator->y != op->y)	1392	if (originator->map != op->map || originator->x != op->x || originator->y != op->y)
1392	{	1393	{
1393	LOG (llevError, "insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");	1394	LOG (llevError, "insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");
1394	abort ();	1395	abort ();
1395	}	1396	}
1396		1397
		1398	if (!originator->is_on_map ())
		1399	{
		1400	LOG (llevError, "insert_ob_in_map(%s) called with INS_BELOW_ORIGINATOR when originator '%s' not on map",
		1401	op->debug_desc (), originator->debug_desc ());
		1402	abort ();
		1403	}
		1404
1397	op->above = originator;	1405	op->above = originator;
1398	op->below = originator->below;	1406	op->below = originator->below;
1399
1400	if (op->below)
1401	op->below->above = op;
1402	else
1403	SET_MAP_OB (op->map, op->x, op->y, op);
1404
1405	/* since *below* originator, no need to update top */
1406	originator->below = op;	1407	originator->below = op;
		1408
		1409	*(op->below ? &op->below->above : &ms.bot) = op;
1407	}	1410	}
1408	else	1411	else
1409	{	1412	{
		1413	object *floor = 0;
		1414	object *top = ms.top;
		1415
1410	/* If there are other objects, then */	1416	/* If there are other objects, then */
1411	if ((!(flag & INS_MAP_LOAD)) && ((top = GET_MAP_OB (op->map, op->x, op->y)) != NULL))	1417	if (top)
1412	{	1418	{
1413	object *last = NULL;
1414
1415	/*	1419	/*
1416	* If there are multiple objects on this space, we do some trickier handling.	1420	* If there are multiple objects on this space, we do some trickier handling.
1417	* We've already dealt with merging if appropriate.	1421	* We've already dealt with merging if appropriate.
1418	* Generally, we want to put the new object on top. But if	1422	* Generally, we want to put the new object on top. But if
1419	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last	1423	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last
…		…
1422	* once we get to them. This reduces the need to traverse over all of	1426	* once we get to them. This reduces the need to traverse over all of
1423	* them when adding another one - this saves quite a bit of cpu time	1427	* them when adding another one - this saves quite a bit of cpu time
1424	* when lots of spells are cast in one area. Currently, it is presumed	1428	* when lots of spells are cast in one area. Currently, it is presumed
1425	* that flying non pickable objects are spell objects.	1429	* that flying non pickable objects are spell objects.
1426	*/	1430	*/
1427		1431	for (object *tmp = ms.bot; tmp; tmp = tmp->above)
1428	while (top != NULL)
1429	{	1432	{
1430	if (QUERY_FLAG (top, FLAG_IS_FLOOR) || QUERY_FLAG (top, FLAG_OVERLAY_FLOOR))	1433	if (tmp->flag [FLAG_IS_FLOOR] || tmp->flag [FLAG_OVERLAY_FLOOR])
1431	floor = top;	1434	floor = tmp;
1432		1435
1433	if (QUERY_FLAG (top, FLAG_NO_PICK) && (top->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (top, FLAG_IS_FLOOR))	1436	if (tmp->flag [FLAG_NO_PICK] && (tmp->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !tmp->flag [FLAG_IS_FLOOR])
1434	{	1437	{
1435	/* We insert above top, so we want this object below this */	1438	/* We insert above top, so we want this object below this */
1436	top = top->below;	1439	top = tmp->below;
1437	break;	1440	break;
1438	}	1441	}
1439		1442
1440	last = top;
1441	top = top->above;	1443	top = tmp;
1442	}	1444	}
1443
1444	/* Don't want top to be NULL, so set it to the last valid object */
1445	top = last;
1446		1445
1447	/* We let update_position deal with figuring out what the space	1446	/* We let update_position deal with figuring out what the space
1448	* looks like instead of lots of conditions here.	1447	* looks like instead of lots of conditions here.
1449	* makes things faster, and effectively the same result.	1448	* makes things faster, and effectively the same result.
1450	*/	1449	*/
1451		1450
1452	/* Have object 'fall below' other objects that block view.	1451	/* Have object 'fall below' other objects that block view.
1453	* Unless those objects are exits, type 66	1452	* Unless those objects are exits.
1454	* If INS_ON_TOP is used, don't do this processing	1453	* If INS_ON_TOP is used, don't do this processing
1455	* Need to find the object that in fact blocks view, otherwise	1454	* Need to find the object that in fact blocks view, otherwise
1456	* stacking is a bit odd.	1455	* stacking is a bit odd.
1457	*/	1456	*/
1458	if (!(flag & INS_ON_TOP) &&	1457	if (!(flag & INS_ON_TOP)
1459	(get_map_flags (op->map, NULL, op->x, op->y, NULL, NULL) & P_BLOCKSVIEW) && (op->face && !op->face->visibility))	1458	&& ms.flags () & P_BLOCKSVIEW
		1459	&& (op->face && !faces [op->face].visibility))
1460	{	1460	{
		1461	object *last;
		1462
1461	for (last = top; last != floor; last = last->below)	1463	for (last = top; last != floor; last = last->below)
1462	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))	1464	if (last->flag [FLAG_BLOCKSVIEW] && (last->type != EXIT))
1463	break;	1465	break;
		1466
1464	/* Check to see if we found the object that blocks view,	1467	/* Check to see if we found the object that blocks view,
1465	* and make sure we have a below pointer for it so that	1468	* and make sure we have a below pointer for it so that
1466	* we can get inserted below this one, which requires we	1469	* we can get inserted below this one, which requires we
1467	* set top to the object below us.	1470	* set top to the object below us.
1468	*/	1471	*/
1469	if (last && last->below && last != floor)	1472	if (last && last->below && last != floor)
1470	top = last->below;	1473	top = last->below;
1471	}	1474	}
1472	} /* If objects on this space */	1475	} /* If objects on this space */
1473		1476
1474	if (flag & INS_MAP_LOAD)
1475	top = GET_MAP_TOP (op->map, op->x, op->y);
1476
1477	if (flag & INS_ABOVE_FLOOR_ONLY)	1477	if (flag & INS_ABOVE_FLOOR_ONLY)
1478	top = floor;	1478	top = floor;
1479		1479
1480	/* Top is the object that our object (op) is going to get inserted above.	1480	// insert object above top, or bottom-most if top = 0
1481	*/
1482
1483	/* First object on this space */
1484	if (!top)	1481	if (!top)
1485	{	1482	{
1486	op->above = GET_MAP_OB (op->map, op->x, op->y);
1487
1488	if (op->above)
1489	op->above->below = op;
1490
1491	op->below = NULL;	1483	op->below = 0;
1492	SET_MAP_OB (op->map, op->x, op->y, op);	1484	op->above = ms.bot;
		1485	ms.bot = op;
		1486
		1487	*(op->above ? &op->above->below : &ms.top) = op;
1493	}	1488	}
1494	else	1489	else
1495	{ /* get inserted into the stack above top */	1490	{
1496	op->above = top->above;	1491	op->above = top->above;
1497
1498	if (op->above)
1499	op->above->below = op;	1492	top->above = op;
1500		1493
1501	op->below = top;	1494	op->below = top;
1502	top->above = op;	1495	*(op->above ? &op->above->below : &ms.top) = op;
1503	}	1496	}
		1497	}
1504		1498
1505	if (op->above == NULL)	1499	if (op->is_player ())
1506	SET_MAP_TOP (op->map, op->x, op->y, op);	1500	{
1507	} /* else not INS_BELOW_ORIGINATOR */
1508
1509	if (op->type == PLAYER)
1510	op->contr->do_los = 1;	1501	op->contr->do_los = 1;
		1502	++op->map->players;
		1503	op->map->touch ();
		1504	}
1511		1505
1512	/* If we have a floor, we know the player, if any, will be above	1506	op->map->dirty = true;
1513	* it, so save a few ticks and start from there.	1507
1514	*/	1508	if (object *pl = ms.player ())
1515	if (!(flag & INS_MAP_LOAD))	1509	//TODO: the floorbox prev/next might need updating
1516	for (tmp = floor ? floor : GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)	1510	//esrv_send_item (pl, op);
1517	if (tmp->type == PLAYER)	1511	//TODO: update floorbox to preserve ordering
1518	tmp->contr->socket.update_look = 1;	1512	if (pl->contr->ns)
		1513	pl->contr->ns->floorbox_update ();
1519		1514
1520	/* If this object glows, it may affect lighting conditions that are	1515	/* If this object glows, it may affect lighting conditions that are
1521	* visible to others on this map. But update_all_los is really	1516	* visible to others on this map. But update_all_los is really
1522	* an inefficient way to do this, as it means los for all players	1517	* an inefficient way to do this, as it means los for all players
1523	* on the map will get recalculated. The players could very well	1518	* on the map will get recalculated. The players could very well
1524	* be far away from this change and not affected in any way -	1519	* be far away from this change and not affected in any way -
1525	* this should get redone to only look for players within range,	1520	* this should get redone to only look for players within range,
1526	* or just updating the P_NEED_UPDATE for spaces within this area	1521	* or just updating the P_UPTODATE for spaces within this area
1527	* of effect may be sufficient.	1522	* of effect may be sufficient.
1528	*/	1523	*/
1529	if (MAP_DARKNESS (op->map) && (op->glow_radius != 0))	1524	if (op->affects_los ())
		1525	{
		1526	op->ms ().invalidate ();
1530	update_all_los (op->map, op->x, op->y);	1527	update_all_los (op->map, op->x, op->y);
		1528	}
1531		1529
1532	/* updates flags (blocked, alive, no magic, etc) for this map space */	1530	/* updates flags (blocked, alive, no magic, etc) for this map space */
1533	update_object (op, UP_OBJ_INSERT);	1531	update_object (op, UP_OBJ_INSERT);
1534		1532
		1533	INVOKE_OBJECT (INSERT, op);
		1534
1535	/* Don't know if moving this to the end will break anything. However,	1535	/* Don't know if moving this to the end will break anything. However,
1536	* we want to have update_look set above before calling this.	1536	* we want to have floorbox_update called before calling this.
1537	*	1537	*
1538	* check_move_on() must be after this because code called from	1538	* check_move_on() must be after this because code called from
1539	* check_move_on() depends on correct map flags (so functions like	1539	* check_move_on() depends on correct map flags (so functions like
1540	* blocked() and wall() work properly), and these flags are updated by	1540	* blocked() and wall() work properly), and these flags are updated by
1541	* update_object().	1541	* update_object().
1542	*/	1542	*/
1543		1543
1544	/* if this is not the head or flag has been passed, don't check walk on status */	1544	/* if this is not the head or flag has been passed, don't check walk on status */
1545	if (!(flag & INS_NO_WALK_ON) && !op->head)	1545	if (!(flag & INS_NO_WALK_ON) && op->is_head ())
1546	{	1546	{
1547	if (check_move_on (op, originator))	1547	if (check_move_on (op, originator, flag))
1548	return NULL;	1548	return 0;
1549		1549
1550	/* If we are a multi part object, lets work our way through the check	1550	/* If we are a multi part object, let's work our way through the check
1551	* walk on's.	1551	* walk on's.
1552	*/	1552	*/
1553	for (tmp = op->more; tmp != NULL; tmp = tmp->more)	1553	for (object *tmp = op->more; tmp; tmp = tmp->more)
1554	if (check_move_on (tmp, originator))	1554	if (check_move_on (tmp, originator, flag))
1555	return NULL;	1555	return 0;
1556	}	1556	}
1557		1557
1558	return op;	1558	return op;
1559	}	1559	}
1560		1560
1561	/* this function inserts an object in the map, but if it	1561	/* this function inserts an object in the map, but if it
1562	* finds an object of its own type, it'll remove that one first.	1562	* finds an object of its own type, it'll remove that one first.
1563	* op is the object to insert it under: supplies x and the map.	1563	* op is the object to insert it under: supplies x and the map.
1564	*/	1564	*/
1565	void	1565	void
1566	replace_insert_ob_in_map (const char *arch_string, object *op)	1566	replace_insert_ob_in_map (shstr_tmp archname, object *op)
1567	{	1567	{
1568	object *
1569	tmp;
1570	object *
1571	tmp1;
1572
1573	/* first search for itself and remove any old instances */	1568	/* first search for itself and remove any old instances */
1574		1569
1575	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)	1570	for (object *tmp = op->ms ().bot; tmp; tmp = tmp->above)
1576	{
1577	if (!strcmp (tmp->arch->name, arch_string)) /* same archetype */	1571	if (tmp->arch->archname == archname) /* same archetype */
1578	{	1572	tmp->destroy ();
1579	remove_ob (tmp);
1580	free_object (tmp);
1581	}
1582	}
1583		1573
1584	tmp1 = arch_to_object (archetype::find (arch_string));	1574	object *tmp = archetype::find (archname)->instance ();
1585		1575
1586	tmp1->x = op->x;	1576	tmp->x = op->x;
1587	tmp1->y = op->y;	1577	tmp->y = op->y;
		1578
1588	insert_ob_in_map (tmp1, op->map, op, 0);	1579	insert_ob_in_map (tmp, op->map, op, 0);
1589	}	1580	}
1590
1591	/*
1592	* get_split_ob(ob,nr) splits up ob into two parts. The part which
1593	* is returned contains nr objects, and the remaining parts contains
1594	* the rest (or is removed and freed if that number is 0).
1595	* On failure, NULL is returned, and the reason put into the
1596	* global static errmsg array.
1597	*/
1598		1581
1599	object *	1582	object *
1600	get_split_ob (object *orig_ob, uint32 nr)	1583	object::insert_at (object *where, object *originator, int flags)
1601	{	1584	{
1602	object *	1585	if (where->env)
1603	newob;	1586	return where->env->insert (this);
1604	int	1587	else
1605	is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);	1588	return where->map->insert (this, where->x, where->y, originator, flags);
1606
1607	if (orig_ob->nrof < nr)
1608	{
1609	sprintf (errmsg, "There are only %d %ss.", orig_ob->nrof ? orig_ob->nrof : 1, &orig_ob->name);
1610	return NULL;
1611	}
1612
1613	newob = object_create_clone (orig_ob);
1614
1615	if ((orig_ob->nrof -= nr) < 1)
1616	{
1617	if (!is_removed)
1618	remove_ob (orig_ob);
1619	free_object2 (orig_ob, 1);
1620	}
1621	else if (!is_removed)
1622	{
1623	if (orig_ob->env != NULL)
1624	sub_weight (orig_ob->env, orig_ob->weight * nr);
1625	if (orig_ob->env == NULL && orig_ob->map->in_memory != MAP_IN_MEMORY)
1626	{
1627	strcpy (errmsg, "Tried to split object whose map is not in memory.");
1628	LOG (llevDebug, "Error, Tried to split object whose map is not in memory.\n");
1629	return NULL;
1630	}
1631	}
1632
1633	newob->nrof = nr;
1634
1635	return newob;
1636	}	1589	}
1637		1590
		1591	// check whether we can put this into the map, respect max_volume, max_items
		1592	bool
		1593	object::can_drop_at (maptile *m, int x, int y, object *originator)
		1594	{
		1595	mapspace &ms = m->at (x, y);
		1596
		1597	int items = ms.items ();
		1598
		1599	if (!items // testing !items ensures we can drop at least one item
		1600	|| (items < m->max_items
		1601	&& ms.volume () < m->max_volume))
		1602	return true;
		1603
		1604	if (originator && originator->is_player ())
		1605	originator->contr->failmsgf (
		1606	"No matter how hard you try, you just cannot put the %s here H<Try to remove some items from the floor first.>",
		1607	query_name ()
		1608	);
		1609
		1610	return false;
		1611	}
		1612
1638	/*	1613	/*
1639	* decrease_ob_nr(object, number) decreases a specified number from	1614	* decrease(object, number) decreases a specified number from
1640	* the amount of an object. If the amount reaches 0, the object	1615	* the amount of an object. If the amount reaches 0, the object
1641	* is subsequently removed and freed.	1616	* is subsequently removed and freed.
1642	*	1617	*
1643	* Return value: 'op' if something is left, NULL if the amount reached 0	1618	* Return value: 'op' if something is left, NULL if the amount reached 0
1644	*/	1619	*/
		1620	bool
		1621	object::decrease (sint32 nr)
		1622	{
		1623	if (!nr)
		1624	return true;
1645		1625
		1626	nr = min (nr, nrof);
		1627
		1628	if (nrof > nr)
		1629	{
		1630	sint64 oweight = total_weight ();
		1631
		1632	nrof -= nr;
		1633
		1634	if (object *pl = visible_to ())
		1635	esrv_update_item (UPD_NROF, pl, this);
		1636
		1637	adjust_weight (env, oweight, total_weight ());
		1638
		1639	return true;
		1640	}
		1641	else
		1642	{
		1643	destroy ();
		1644	return false;
		1645	}
		1646	}
		1647
		1648	/*
		1649	* split(ob,nr) splits up ob into two parts. The part which
		1650	* is returned contains nr objects, and the remaining parts contains
		1651	* the rest (or is removed and returned if that number is 0).
		1652	* On failure, NULL is returned.
		1653	*/
1646	object *	1654	object *
1647	decrease_ob_nr (object *op, uint32 i)	1655	object::split (sint32 nr)
1648	{	1656	{
1649	object *tmp;	1657	int have = number_of ();
1650	player *pl;
1651		1658
1652	if (i == 0) /* objects with op->nrof require this check */	1659	if (have < nr)
1653	return op;	1660	return 0;
1654		1661	else if (have == nr)
1655	if (i > op->nrof)
1656	i = op->nrof;
1657
1658	if (QUERY_FLAG (op, FLAG_REMOVED))
1659	op->nrof -= i;
1660	else if (op->env != NULL)
1661	{	1662	{
1662	/* is this object in the players inventory, or sub container
1663	* therein?
1664	*/
1665	tmp = is_player_inv (op->env);
1666	/* nope. Is this a container the player has opened?
1667	* If so, set tmp to that player.
1668	* IMO, searching through all the players will mostly
1669	* likely be quicker than following op->env to the map,
1670	* and then searching the map for a player.
1671	*/
1672	if (!tmp)
1673	{
1674	for (pl = first_player; pl; pl = pl->next)
1675	if (pl->ob->container == op->env)
1676	break;
1677	if (pl)
1678	tmp = pl->ob;
1679	else
1680	tmp = NULL;
1681	}
1682
1683	if (i < op->nrof)
1684	{
1685	sub_weight (op->env, op->weight * i);
1686	op->nrof -= i;
1687	if (tmp)
1688	{
1689	esrv_send_item (tmp, op);
1690	}
1691	}
1692	else
1693	{
1694	remove_ob (op);	1663	remove ();
1695	op->nrof = 0;	1664	return this;
1696	if (tmp)
1697	{
1698	esrv_del_item (tmp->contr, op->count);
1699	}
1700	}
1701	}	1665	}
1702	else	1666	else
1703	{	1667	{
1704	object *above = op->above;	1668	decrease (nr);
1705		1669
1706	if (i < op->nrof)	1670	object *op = deep_clone ();
1707	op->nrof -= i;	1671	op->nrof = nr;
1708	else
1709	{
1710	remove_ob (op);
1711	op->nrof = 0;
1712	}
1713
1714	/* Since we just removed op, op->above is null */
1715	for (tmp = above; tmp != NULL; tmp = tmp->above)
1716	if (tmp->type == PLAYER)
1717	{
1718	if (op->nrof)
1719	esrv_send_item (tmp, op);
1720	else
1721	esrv_del_item (tmp->contr, op->count);
1722	}
1723	}
1724
1725	if (op->nrof)
1726	return op;	1672	return op;
1727	else
1728	{	1673	}
1729	free_object (op);
1730	return NULL;
1731	}
1732	}	1674	}
1733
1734	/*
1735	* add_weight(object, weight) adds the specified weight to an object,
1736	* and also updates how much the environment(s) is/are carrying.
1737	*/
1738
1739	void
1740	add_weight (object *op, signed long weight)
1741	{
1742	while (op != NULL)
1743	{
1744	if (op->type == CONTAINER)
1745	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1746
1747	op->carrying += weight;
1748	op = op->env;
1749	}
1750	}
1751
1752	/*
1753	* insert_ob_in_ob(op,environment):
1754	* This function inserts the object op in the linked list
1755	* inside the object environment.
1756	*
1757	* Eneq(@csd.uu.se): Altered insert_ob_in_ob to make things picked up enter
1758	* the inventory at the last position or next to other objects of the same
1759	* type.
1760	* Frank: Now sorted by type, archetype and magic!
1761	*
1762	* The function returns now pointer to inserted item, and return value can
1763	* be != op, if items are merged. -Tero
1764	*/
1765		1675
1766	object *	1676	object *
1767	insert_ob_in_ob (object *op, object *where)	1677	insert_ob_in_ob (object *op, object *where)
1768	{	1678	{
1769	object *	1679	if (!where)
1770	tmp, *
1771	otmp;
1772
1773	if (!QUERY_FLAG (op, FLAG_REMOVED))
1774	{
1775	char *dump = dump_object (op);
1776	LOG (llevError, "Trying to insert (ob) inserted object.\n%s\n", dump);
1777	free (dump);
1778	return op;
1779	}
1780
1781	if (where == NULL)
1782	{	1680	{
1783	char *dump = dump_object (op);	1681	char *dump = dump_object (op);
1784	LOG (llevError, "Trying to put object in NULL.\n%s\n", dump);	1682	LOG (llevError, "Trying to put object in NULL.\n%s\n", dump);
1785	free (dump);	1683	free (dump);
1786	return op;	1684	return op;
1787	}	1685	}
1788		1686
1789	if (where->head)	1687	if (where->head_ () != where)
1790	{	1688	{
1791	LOG (llevDebug, "Warning: Tried to insert object wrong part of multipart object.\n");	1689	LOG (llevError | logBacktrace, "Warning: Tried to insert object into wrong part of multipart object.\n");
1792	where = where->head;	1690	where = where->head;
1793	}	1691	}
1794		1692
		1693	return where->insert (op);
		1694	}
		1695
		1696	/*
		1697	* env->insert (op)
		1698	* This function inserts the object op in the linked list
		1699	* inside the object environment.
		1700	*
		1701	* The function returns now pointer to inserted item, and return value can
		1702	* be != op, if items are merged. -Tero
		1703	*/
		1704	object *
		1705	object::insert (object *op)
		1706	{
1795	if (op->more)	1707	if (op->more)
1796	{	1708	{
1797	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);	1709	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);
1798	return op;	1710	return op;
1799	}	1711	}
1800		1712
1801	CLEAR_FLAG (op, FLAG_OBJ_ORIGINAL);	1713	op->remove ();
1802	CLEAR_FLAG (op, FLAG_REMOVED);	1714
		1715	op->flag [FLAG_OBJ_ORIGINAL] = 0;
		1716
1803	if (op->nrof)	1717	if (op->nrof)
1804	{
1805	for (tmp = where->inv; tmp != NULL; tmp = tmp->below)	1718	for (object *tmp = inv; tmp; tmp = tmp->below)
1806	if (CAN_MERGE (tmp, op))	1719	if (object::can_merge (tmp, op))
1807	{	1720	{
1808	/* return the original object and remove inserted object	1721	/* return the original object and remove inserted object
1809	(client needs the original object) */	1722	(client prefers the original object) */
		1723
		1724	// carring must be 0 for mergable objects
		1725	sint64 oweight = tmp->weight * tmp->nrof;
		1726
1810	tmp->nrof += op->nrof;	1727	tmp->nrof += op->nrof;
1811	/* Weight handling gets pretty funky. Since we are adding to	1728
1812	* tmp->nrof, we need to increase the weight.	1729	if (object *pl = tmp->visible_to ())
1813	*/	1730	esrv_update_item (UPD_NROF, pl, tmp);
		1731
1814	add_weight (where, op->weight * op->nrof);	1732	adjust_weight (this, oweight, tmp->weight * tmp->nrof);
1815	SET_FLAG (op, FLAG_REMOVED);	1733
1816	free_object (op); /* free the inserted object */	1734	op->destroy ();
1817	op = tmp;	1735	op = tmp;
1818	remove_ob (op); /* and fix old object's links */	1736	goto inserted;
1819	CLEAR_FLAG (op, FLAG_REMOVED);
1820	break;
1821	}	1737	}
1822		1738
1823	/* I assume combined objects have no inventory	1739	op->owner = 0; // it's his/hers now. period.
1824	* We add the weight - this object could have just been removed
1825	* (if it was possible to merge). calling remove_ob will subtract
1826	* the weight, so we need to add it in again, since we actually do
1827	* the linking below
1828	*/
1829	add_weight (where, op->weight * op->nrof);
1830	}
1831	else
1832	add_weight (where, (op->weight + op->carrying));
1833
1834	otmp = is_player_inv (where);
1835	if (otmp && otmp->contr != NULL)
1836	{
1837	if (!QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1838	fix_player (otmp);
1839	}
1840
1841	op->map = NULL;	1740	op->map = 0;
1842	op->env = where;	1741	op->x = 0;
		1742	op->y = 0;
		1743
1843	op->above = NULL;	1744	op->above = 0;
1844	op->below = NULL;	1745	op->below = inv;
1845	op->x = 0, op->y = 0;	1746	op->env = this;
1846		1747
		1748	if (inv)
		1749	inv->above = op;
		1750
		1751	inv = op;
		1752
		1753	op->flag [FLAG_REMOVED] = 0;
		1754
		1755	if (object *pl = op->visible_to ())
		1756	esrv_send_item (pl, op);
		1757
		1758	adjust_weight (this, 0, op->total_weight ());
		1759
		1760	inserted:
1847	/* reset the light list and los of the players on the map */	1761	/* reset the light list and los of the players on the map */
1848	if ((op->glow_radius != 0) && where->map)	1762	if (op->glow_radius && is_on_map ())
1849	{
1850	#ifdef DEBUG_LIGHTS
1851	LOG (llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n", op->name);
1852	#endif /* DEBUG_LIGHTS */
1853	if (MAP_DARKNESS (where->map))
1854	update_all_los (where->map, where->x, where->y);
1855	}	1763	{
1856		1764	update_stats ();
1857	/* Client has no idea of ordering so lets not bother ordering it here.	1765	update_all_los (map, x, y);
1858	* It sure simplifies this function...
1859	*/
1860	if (where->inv == NULL)
1861	where->inv = op;
1862	else
1863	{	1766	}
1864	op->below = where->inv;	1767	else if (is_player ())
1865	op->below->above = op;	1768	// if this is a player's inventory, update stats
1866	where->inv = op;	1769	contr->queue_stats_update ();
1867	}	1770
		1771	INVOKE_OBJECT (INSERT, this);
		1772
1868	return op;	1773	return op;
1869	}	1774	}
1870		1775
1871	/*	1776	/*
1872	* Checks if any objects has a move_type that matches objects	1777	* Checks if any objects has a move_type that matches objects
…		…
1886	*	1791	*
1887	* MSW 2001-07-08: Check all objects on space, not just those below	1792	* MSW 2001-07-08: Check all objects on space, not just those below
1888	* object being inserted. insert_ob_in_map may not put new objects	1793	* object being inserted. insert_ob_in_map may not put new objects
1889	* on top.	1794	* on top.
1890	*/	1795	*/
1891
1892	int	1796	int
1893	check_move_on (object *op, object *originator)	1797	check_move_on (object *op, object *originator, int flags)
1894	{	1798	{
		1799	if (op->flag [FLAG_NO_APPLY])
		1800	return 0;
		1801
1895	object *tmp;	1802	object *tmp;
1896	maptile *m = op->map;	1803	maptile *m = op->map;
1897	int x = op->x, y = op->y;	1804	int x = op->x, y = op->y;
1898		1805
1899	MoveType move_on, move_slow, move_block;	1806	mapspace &ms = m->at (x, y);
1900		1807
1901	if (QUERY_FLAG (op, FLAG_NO_APPLY))	1808	ms.update ();
1902	return 0;
1903		1809
1904	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);	1810	MoveType move_on = ms.move_on;
1905	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);	1811	MoveType move_slow = ms.move_slow;
1906	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);	1812	MoveType move_block = ms.move_block;
1907		1813
1908	/* if nothing on this space will slow op down or be applied,	1814	/* if nothing on this space will slow op down or be applied,
1909	* no need to do checking below. have to make sure move_type	1815	* no need to do checking below. have to make sure move_type
1910	* is set, as lots of objects don't have it set - we treat that	1816	* is set, as lots of objects don't have it set - we treat that
1911	* as walking.	1817	* as walking.
…		…
1922	return 0;	1828	return 0;
1923		1829
1924	/* The objects have to be checked from top to bottom.	1830	/* The objects have to be checked from top to bottom.
1925	* Hence, we first go to the top:	1831	* Hence, we first go to the top:
1926	*/	1832	*/
1927		1833	for (object *next, *tmp = ms.top; tmp; tmp = next)
1928	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL && tmp->above != NULL; tmp = tmp->above)
1929	{
1930	/* Trim the search when we find the first other spell effect
1931	* this helps performance so that if a space has 50 spell objects,
1932	* we don't need to check all of them.
1933	*/
1934	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG (tmp, FLAG_NO_PICK))
1935	break;
1936	}	1834	{
		1835	next = tmp->below;
1937		1836
1938	for (; tmp; tmp = tmp->below)
1939	{
1940	if (tmp == op)	1837	if (tmp == op)
1941	continue; /* Can't apply yourself */	1838	continue; /* Can't apply yourself */
1942		1839
1943	/* Check to see if one of the movement types should be slowed down.	1840	/* Check to see if one of the movement types should be slowed down.
1944	* Second check makes sure that the movement types not being slowed	1841	* Second check makes sure that the movement types not being slowed
1945	* (~slow_move) is not blocked on this space - just because the	1842	* (~slow_move) is not blocked on this space - just because the
1946	* space doesn't slow down swimming (for example), if you can't actually	1843	* space doesn't slow down swimming (for example), if you can't actually
1947	* swim on that space, can't use it to avoid the penalty.	1844	* swim on that space, can't use it to avoid the penalty.
1948	*/	1845	*/
1949	if (!QUERY_FLAG (op, FLAG_WIZPASS))	1846	if (!op->flag [FLAG_WIZPASS])
1950	{	1847	{
1951	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||	1848	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||
1952	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))	1849	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))
1953	{	1850	{
1954
1955	float
1956	diff = tmp->move_slow_penalty * FABS (op->speed);	1851	float diff = tmp->move_slow_penalty * fabs (op->speed);
1957		1852
1958	if (op->type == PLAYER)	1853	if (op->is_player ())
1959	if ((QUERY_FLAG (tmp, FLAG_IS_HILLY) && find_skill_by_number (op, SK_CLIMBING)) ||	1854	if ((tmp->flag [FLAG_IS_HILLY ] && find_skill_by_number (op, SK_CLIMBING)) ||
1960	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))	1855	(tmp->flag [FLAG_IS_WOODED] && find_skill_by_number (op, SK_WOODSMAN)))
1961	diff /= 4.0;	1856	diff /= 4.0;
1962		1857
1963	op->speed_left -= diff;	1858	op->speed_left -= diff;
1964	}	1859	}
1965	}	1860	}
1966		1861
1967	/* Basically same logic as above, except now for actual apply. */	1862	/* Basically same logic as above, except now for actual apply. */
1968	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||	1863	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||
1969	((op->move_type & tmp->move_on) && (op->move_type & ~tmp->move_on & ~tmp->move_block) == 0))	1864	((op->move_type & tmp->move_on) && (op->move_type & ~tmp->move_on & ~tmp->move_block) == 0))
1970	{	1865	{
		1866	if ((flags & INS_NO_AUTO_EXIT)
		1867	&& (tmp->type == EXIT || tmp->type == TELEPORTER
		1868	|| tmp->type == HOLE || tmp->type == TRAPDOOR)) //TODO: temporary, fix exits instead
		1869	continue;
		1870
1971	move_apply (tmp, op, originator);	1871	move_apply (tmp, op, originator);
1972		1872
1973	if (op->destroyed ())	1873	if (op->destroyed ())
1974	return 1;	1874	return 1;
1975		1875
…		…
1988	/*	1888	/*
1989	* present_arch(arch, map, x, y) searches for any objects with	1889	* present_arch(arch, map, x, y) searches for any objects with
1990	* a matching archetype at the given map and coordinates.	1890	* a matching archetype at the given map and coordinates.
1991	* The first matching object is returned, or NULL if none.	1891	* The first matching object is returned, or NULL if none.
1992	*/	1892	*/
1993
1994	object *	1893	object *
1995	present_arch (const archetype *at, maptile *m, int x, int y)	1894	present_arch (const archetype *at, maptile *m, int x, int y)
1996	{	1895	{
1997	object *
1998	tmp;
1999
2000	if (m == NULL || out_of_map (m, x, y))	1896	if (!m || out_of_map (m, x, y))
2001	{	1897	{
2002	LOG (llevError, "Present_arch called outside map.\n");	1898	LOG (llevError, "Present_arch called outside map.\n");
2003	return NULL;	1899	return NULL;
2004	}	1900	}
2005	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)	1901
2006	if (tmp->arch == at)	1902	for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)
		1903	if (tmp->arch->archname == at->archname)
2007	return tmp;	1904	return tmp;
		1905
2008	return NULL;	1906	return NULL;
2009	}	1907	}
2010		1908
2011	/*	1909	/*
2012	* present(type, map, x, y) searches for any objects with	1910	* present(type, map, x, y) searches for any objects with
2013	* a matching type variable at the given map and coordinates.	1911	* a matching type variable at the given map and coordinates.
2014	* The first matching object is returned, or NULL if none.	1912	* The first matching object is returned, or NULL if none.
2015	*/	1913	*/
2016
2017	object *	1914	object *
2018	present (unsigned char type, maptile *m, int x, int y)	1915	present (unsigned char type, maptile *m, int x, int y)
2019	{	1916	{
2020	object *
2021	tmp;
2022
2023	if (out_of_map (m, x, y))	1917	if (out_of_map (m, x, y))
2024	{	1918	{
2025	LOG (llevError, "Present called outside map.\n");	1919	LOG (llevError, "Present called outside map.\n");
2026	return NULL;	1920	return NULL;
2027	}	1921	}
2028	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)	1922
		1923	for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)
2029	if (tmp->type == type)	1924	if (tmp->type == type)
2030	return tmp;	1925	return tmp;
		1926
2031	return NULL;	1927	return NULL;
2032	}	1928	}
2033		1929
2034	/*	1930	/*
2035	* present_in_ob(type, object) searches for any objects with	1931	* present_in_ob(type, object) searches for any objects with
2036	* a matching type variable in the inventory of the given object.	1932	* a matching type variable in the inventory of the given object.
2037	* The first matching object is returned, or NULL if none.	1933	* The first matching object is returned, or NULL if none.
2038	*/	1934	*/
2039
2040	object *	1935	object *
2041	present_in_ob (unsigned char type, const object *op)	1936	present_in_ob (unsigned char type, const object *op)
2042	{	1937	{
2043	object *
2044	tmp;
2045
2046	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1938	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
2047	if (tmp->type == type)	1939	if (tmp->type == type)
2048	return tmp;	1940	return tmp;
		1941
2049	return NULL;	1942	return NULL;
2050	}	1943	}
2051		1944
2052	/*	1945	/*
2053	* present_in_ob (type, str, object) searches for any objects with	1946	* present_in_ob (type, str, object) searches for any objects with
…		…
2061	* str is the string to match against. Note that we match against	1954	* str is the string to match against. Note that we match against
2062	* the object name, not the archetype name. this is so that the	1955	* the object name, not the archetype name. this is so that the
2063	* spell code can use one object type (force), but change it's name	1956	* spell code can use one object type (force), but change it's name
2064	* to be unique.	1957	* to be unique.
2065	*/	1958	*/
2066
2067	object *	1959	object *
2068	present_in_ob_by_name (int type, const char *str, const object *op)	1960	present_in_ob_by_name (int type, const char *str, const object *op)
2069	{	1961	{
2070	object *
2071	tmp;
2072
2073	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1962	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2074	{
2075	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))	1963	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))
2076	return tmp;	1964	return tmp;
2077	}	1965
2078	return NULL;	1966	return 0;
2079	}	1967	}
2080		1968
2081	/*	1969	/*
2082	* present_arch_in_ob(archetype, object) searches for any objects with	1970	* present_arch_in_ob(archetype, object) searches for any objects with
2083	* a matching archetype in the inventory of the given object.	1971	* a matching archetype in the inventory of the given object.
2084	* The first matching object is returned, or NULL if none.	1972	* The first matching object is returned, or NULL if none.
2085	*/	1973	*/
2086
2087	object *	1974	object *
2088	present_arch_in_ob (const archetype *at, const object *op)	1975	present_arch_in_ob (const archetype *at, const object *op)
2089	{	1976	{
2090	object *
2091	tmp;
2092
2093	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1977	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2094	if (tmp->arch == at)	1978	if (tmp->arch->archname == at->archname)
2095	return tmp;	1979	return tmp;
		1980
2096	return NULL;	1981	return NULL;
2097	}	1982	}
2098		1983
2099	/*	1984	/*
2100	* activate recursively a flag on an object inventory	1985	* activate recursively a flag on an object inventory
2101	*/	1986	*/
2102	void	1987	void
2103	flag_inv (object *op, int flag)	1988	flag_inv (object *op, int flag)
2104	{	1989	{
2105	object *
2106	tmp;
2107
2108	if (op->inv)
2109	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1990	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2110	{	1991	{
2111	SET_FLAG (tmp, flag);	1992	tmp->set_flag (flag);
2112	flag_inv (tmp, flag);	1993	flag_inv (tmp, flag);
2113	}	1994	}
2114	} /*	1995	}
		1996
		1997	/*
2115	* desactivate recursively a flag on an object inventory	1998	* deactivate recursively a flag on an object inventory
2116	*/	1999	*/
2117	void	2000	void
2118	unflag_inv (object *op, int flag)	2001	unflag_inv (object *op, int flag)
2119	{	2002	{
2120	object *
2121	tmp;
2122
2123	if (op->inv)
2124	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	2003	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2125	{	2004	{
2126	CLEAR_FLAG (tmp, flag);	2005	tmp->clr_flag (flag);
2127	unflag_inv (tmp, flag);	2006	unflag_inv (tmp, flag);
2128	}	2007	}
2129	}
2130
2131	/*
2132	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in
2133	* all it's inventory (recursively).
2134	* If checksums are used, a player will get set_cheat called for
2135	* him/her-self and all object carried by a call to this function.
2136	*/
2137
2138	void
2139	set_cheat (object *op)
2140	{
2141	SET_FLAG (op, FLAG_WAS_WIZ);
2142	flag_inv (op, FLAG_WAS_WIZ);
2143	}	2008	}
2144		2009
2145	/*	2010	/*
2146	* find_free_spot(object, map, x, y, start, stop) will search for	2011	* find_free_spot(object, map, x, y, start, stop) will search for
2147	* a spot at the given map and coordinates which will be able to contain	2012	* a spot at the given map and coordinates which will be able to contain
…		…
2149	* to search (see the freearr_x/y[] definition).	2014	* to search (see the freearr_x/y[] definition).
2150	* It returns a random choice among the alternatives found.	2015	* It returns a random choice among the alternatives found.
2151	* start and stop are where to start relative to the free_arr array (1,9	2016	* start and stop are where to start relative to the free_arr array (1,9
2152	* does all 4 immediate directions). This returns the index into the	2017	* does all 4 immediate directions). This returns the index into the
2153	* array of the free spot, -1 if no spot available (dir 0 = x,y)	2018	* array of the free spot, -1 if no spot available (dir 0 = x,y)
2154	* Note - this only checks to see if there is space for the head of the
2155	* object - if it is a multispace object, this should be called for all
2156	* pieces.
2157	* Note2: This function does correctly handle tiled maps, but does not	2019	* Note: This function does correctly handle tiled maps, but does not
2158	* inform the caller. However, insert_ob_in_map will update as	2020	* inform the caller. However, insert_ob_in_map will update as
2159	* necessary, so the caller shouldn't need to do any special work.	2021	* necessary, so the caller shouldn't need to do any special work.
2160	* Note - updated to take an object instead of archetype - this is necessary	2022	* Note - updated to take an object instead of archetype - this is necessary
2161	* because arch_blocked (now ob_blocked) needs to know the movement type	2023	* because arch_blocked (now ob_blocked) needs to know the movement type
2162	* to know if the space in question will block the object. We can't use	2024	* to know if the space in question will block the object. We can't use
2163	* the archetype because that isn't correct if the monster has been	2025	* the archetype because that isn't correct if the monster has been
2164	* customized, changed states, etc.	2026	* customized, changed states, etc.
2165	*/	2027	*/
2166
2167	int	2028	int
2168	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)	2029	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)
2169	{	2030	{
2170	int
2171	i,
2172	index = 0, flag;
2173	static int
2174	altern[SIZEOFFREE];	2031	int altern[SIZEOFFREE];
		2032	int index = 0, flag;
2175		2033
2176	for (i = start; i < stop; i++)	2034	for (int i = start; i < stop; i++)
2177	{	2035	{
2178	flag = ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]);	2036	mapxy pos (m, x, y); pos.move (i);
2179	if (!flag)	2037
		2038	if (!pos.normalise ())
		2039	continue;
		2040
		2041	mapspace &ms = *pos;
		2042
		2043	if (ms.flags () & P_IS_ALIVE)
		2044	continue;
		2045
		2046	/* However, often
		2047	* ob doesn't have any move type (when used to place exits)
		2048	* so the AND operation in OB_TYPE_MOVE_BLOCK doesn't work.
		2049	*/
		2050	if (ob && ob->move_type == 0 && ms.move_block != MOVE_ALL)
		2051	{
2180	altern[index++] = i;	2052	altern [index++] = i;
		2053	continue;
		2054	}
2181		2055
2182	/* Basically, if we find a wall on a space, we cut down the search size.	2056	/* Basically, if we find a wall on a space, we cut down the search size.
2183	* In this way, we won't return spaces that are on another side of a wall.	2057	* In this way, we won't return spaces that are on another side of a wall.
2184	* This mostly work, but it cuts down the search size in all directions -	2058	* This mostly work, but it cuts down the search size in all directions -
2185	* if the space being examined only has a wall to the north and empty	2059	* if the space being examined only has a wall to the north and empty
2186	* spaces in all the other directions, this will reduce the search space	2060	* spaces in all the other directions, this will reduce the search space
2187	* to only the spaces immediately surrounding the target area, and	2061	* to only the spaces immediately surrounding the target area, and
2188	* won't look 2 spaces south of the target space.	2062	* won't look 2 spaces south of the target space.
2189	*/	2063	*/
2190	else if ((flag & AB_NO_PASS) && maxfree[i] < stop)	2064	if (ms.move_block == MOVE_ALL && maxfree[i] < stop)
		2065	{
2191	stop = maxfree[i];	2066	stop = maxfree[i];
		2067	continue;
		2068	}
		2069
		2070	/* Note it is intentional that we check ob - the movement type of the
		2071	* head of the object should correspond for the entire object.
		2072	*/
		2073	if (OB_TYPE_MOVE_BLOCK (ob, ms.move_block))
		2074	continue;
		2075
		2076	if (ob->blocked (pos.m, pos.x, pos.y))
		2077	continue;
		2078
		2079	altern [index++] = i;
2192	}	2080	}
		2081
2193	if (!index)	2082	if (!index)
2194	return -1;	2083	return -1;
		2084
2195	return altern[RANDOM () % index];	2085	return altern [rndm (index)];
2196	}	2086	}
2197		2087
2198	/*	2088	/*
2199	* find_first_free_spot(archetype, maptile, x, y) works like	2089	* find_first_free_spot(archetype, maptile, x, y) works like
2200	* find_free_spot(), but it will search max number of squares.	2090	* find_free_spot(), but it will search max number of squares.
2201	* But it will return the first available spot, not a random choice.	2091	* But it will return the first available spot, not a random choice.
2202	* Changed 0.93.2: Have it return -1 if there is no free spot available.	2092	* Changed 0.93.2: Have it return -1 if there is no free spot available.
2203	*/	2093	*/
2204
2205	int	2094	int
2206	find_first_free_spot (const object *ob, maptile *m, int x, int y)	2095	find_first_free_spot (const object *ob, maptile *m, int x, int y)
2207	{	2096	{
2208	int
2209	i;
2210
2211	for (i = 0; i < SIZEOFFREE; i++)	2097	for (int i = 0; i < SIZEOFFREE; i++)
2212	{
2213	if (!ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]))	2098	if (!ob->blocked (m, x + freearr_x[i], y + freearr_y[i]))
2214	return i;	2099	return i;
2215	}	2100
2216	return -1;	2101	return -1;
2217	}	2102	}
2218		2103
2219	/*	2104	/*
2220	* The function permute(arr, begin, end) randomly reorders the array	2105	* The function permute(arr, begin, end) randomly reorders the array
2221	* arr[begin..end-1].	2106	* arr[begin..end-1].
		2107	* now uses a fisher-yates shuffle, old permute was broken
2222	*/	2108	*/
2223	static void	2109	static void
2224	permute (int *arr, int begin, int end)	2110	permute (int *arr, int begin, int end)
2225	{	2111	{
2226	int	2112	arr += begin;
2227	i,
2228	j,
2229	tmp,
2230	len;
2231
2232	len = end - begin;	2113	end -= begin;
2233	for (i = begin; i < end; i++)
2234	{
2235	j = begin + RANDOM () % len;
2236		2114
2237	tmp = arr[i];	2115	while (--end)
2238	arr[i] = arr[j];	2116	swap (arr [end], arr [rndm (end + 1)]);
2239	arr[j] = tmp;
2240	}
2241	}	2117	}
2242		2118
2243	/* new function to make monster searching more efficient, and effective!	2119	/* new function to make monster searching more efficient, and effective!
2244	* This basically returns a randomized array (in the passed pointer) of	2120	* This basically returns a randomized array (in the passed pointer) of
2245	* the spaces to find monsters. In this way, it won't always look for	2121	* the spaces to find monsters. In this way, it won't always look for
…		…
2248	* the 3x3 area will be searched, just not in a predictable order.	2124	* the 3x3 area will be searched, just not in a predictable order.
2249	*/	2125	*/
2250	void	2126	void
2251	get_search_arr (int *search_arr)	2127	get_search_arr (int *search_arr)
2252	{	2128	{
2253	int	2129	int i;
2254	i;
2255		2130
2256	for (i = 0; i < SIZEOFFREE; i++)	2131	for (i = 0; i < SIZEOFFREE; i++)
2257	{
2258	search_arr[i] = i;	2132	search_arr[i] = i;
2259	}
2260		2133
2261	permute (search_arr, 1, SIZEOFFREE1 + 1);	2134	permute (search_arr, 1, SIZEOFFREE1 + 1);
2262	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);	2135	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);
2263	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);	2136	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);
2264	}	2137	}
…		…
2273	* Perhaps incorrectly, but I'm making the assumption that exclude	2146	* Perhaps incorrectly, but I'm making the assumption that exclude
2274	* is actually want is going to try and move there. We need this info	2147	* is actually want is going to try and move there. We need this info
2275	* because we have to know what movement the thing looking to move	2148	* because we have to know what movement the thing looking to move
2276	* there is capable of.	2149	* there is capable of.
2277	*/	2150	*/
2278
2279	int	2151	int
2280	find_dir (maptile *m, int x, int y, object *exclude)	2152	find_dir (maptile *m, int x, int y, object *exclude)
2281	{	2153	{
2282	int
2283	i,
2284	max = SIZEOFFREE, mflags;	2154	int max = SIZEOFFREE, mflags;
2285
2286	sint16 nx, ny;
2287	object *
2288	tmp;
2289	maptile *
2290	mp;
2291
2292	MoveType blocked, move_type;	2155	MoveType move_type;
2293		2156
2294	if (exclude && exclude->head)	2157	if (exclude && exclude->head_ () != exclude)
2295	{	2158	{
2296	exclude = exclude->head;	2159	exclude = exclude->head;
2297	move_type = exclude->move_type;	2160	move_type = exclude->move_type;
2298	}	2161	}
2299	else	2162	else
2300	{	2163	{
2301	/* If we don't have anything, presume it can use all movement types. */	2164	/* If we don't have anything, presume it can use all movement types. */
2302	move_type = MOVE_ALL;	2165	move_type = MOVE_ALL;
2303	}	2166	}
2304		2167
2305	for (i = 1; i < max; i++)	2168	for (int i = 1; i < max; i++)
2306	{	2169	{
2307	mp = m;	2170	mapxy pos (m, x, y);
2308	nx = x + freearr_x[i];	2171	pos.move (i);
2309	ny = y + freearr_y[i];
2310		2172
2311	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);	2173	if (!pos.normalise ())
2312	if (mflags & P_OUT_OF_MAP)
2313	{
2314	max = maxfree[i];	2174	max = maxfree[i];
2315	}
2316	else	2175	else
2317	{	2176	{
2318	blocked = GET_MAP_MOVE_BLOCK (mp, nx, ny);	2177	mapspace &ms = *pos;
2319		2178
2320	if ((move_type & blocked) == move_type)	2179	if ((move_type & ms.move_block) == move_type)
		2180	max = maxfree [i];
		2181	else if (ms.flags () & P_IS_ALIVE)
2321	{	2182	{
2322	max = maxfree[i];	2183	for (object *tmp = ms.bot; tmp; tmp = tmp->above)
2323	}	2184	if ((tmp->flag [FLAG_MONSTER] || tmp->is_player ())
2324	else if (mflags & P_IS_ALIVE)	2185	&& (tmp != exclude || (tmp->head_ () != tmp && tmp->head_ () != exclude)))
2325	{
2326	for (tmp = GET_MAP_OB (mp, nx, ny); tmp != NULL; tmp = tmp->above)
2327	{
2328	if ((QUERY_FLAG (tmp, FLAG_MONSTER) || tmp->type == PLAYER) && (tmp != exclude || (tmp->head && tmp->head != exclude)))
2329	{
2330	break;
2331	}
2332	}
2333	if (tmp)
2334	{
2335	return freedir[i];	2186	return freedir [i];
2336	}
2337	}	2187	}
2338	}	2188	}
2339	}	2189	}
		2190
2340	return 0;	2191	return 0;
2341	}	2192	}
2342		2193
2343	/*	2194	/*
2344	* distance(object 1, object 2) will return the square of the	2195	* distance(object 1, object 2) will return the square of the
2345	* distance between the two given objects.	2196	* distance between the two given objects.
2346	*/	2197	*/
2347
2348	int	2198	int
2349	distance (const object *ob1, const object *ob2)	2199	distance (const object *ob1, const object *ob2)
2350	{	2200	{
2351	int
2352	i;
2353
2354	i = (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);	2201	return (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);
2355	return i;
2356	}	2202	}
2357		2203
2358	/*	2204	/*
2359	* find_dir_2(delta-x,delta-y) will return a direction in which	2205	* find_dir_2(delta-x,delta-y) will return a direction value
2360	* an object which has subtracted the x and y coordinates of another	2206	* for running into direct [dx, dy].
2361	* object, needs to travel toward it.	2207	* (the opposite of crossfire's find_dir_2!)
2362	*/	2208	*/
2363
2364	int	2209	int
2365	find_dir_2 (int x, int y)	2210	find_dir_2 (int x, int y)
2366	{	2211	{
		2212	#if 1 // new algorithm
		2213	// this works by putting x, y into 16 sectors, which
		2214	// are not equal sized, but are a better approximation
		2215	// then the old algorithm, and then using a mapping
		2216	// table to map it into a direction value.
		2217	// basically, it maps these comparisons to each bit
		2218	// bit #3: x < 0
		2219	// bit #2: y < 0
		2220	// bit #1: x > y
		2221	// bit #0: x > 2y
		2222
		2223	static const uint8 dir[16] = {
		2224	4, 5, 4, 3,
		2225	2, 1, 2, 3,
		2226	6, 5, 6, 7,
		2227	8, 1, 8, 7,
		2228	};
		2229	int sector = 0;
		2230
		2231	// this is a bit ugly, but more likely to result in branchless code
		2232	sector |= x < 0 ? 8 : 0;
		2233	x = x < 0 ? -x : x; // abs
		2234
		2235	sector |= y < 0 ? 4 : 0;
		2236	y = y < 0 ? -y : y; // abs
		2237
		2238	if (x > y)
		2239	{
		2240	sector |= 2;
		2241
		2242	if (x > y * 2)
		2243	sector |= 1;
		2244	}
		2245	else
		2246	{
		2247	if (y > x * 2)
		2248	sector |= 1;
		2249	else if (!y)
		2250	return 0; // x == 0 here
		2251	}
		2252
		2253	return dir [sector];
		2254	#else // old algorithm
2367	int	2255	int q;
2368	q;
2369		2256
2370	if (y)	2257	if (y)
2371	q = x * 100 / y;	2258	q = 128 * x / y;
2372	else if (x)	2259	else if (x)
2373	q = -300 * x;	2260	q = -512 * x; // to make it > 309
2374	else	2261	else
2375	return 0;	2262	return 0;
2376		2263
2377	if (y > 0)	2264	if (y > 0)
2378	{	2265	{
2379	if (q < -242)	2266	if (q < -309) return 7;
		2267	if (q < -52) return 6;
		2268	if (q < 52) return 5;
		2269	if (q < 309) return 4;
		2270
2380	return 3;	2271	return 3;
2381	if (q < -41)	2272	}
2382	return 2;	2273	else
2383	if (q < 41)	2274	{
2384	return 1;	2275	if (q < -309) return 3;
2385	if (q < 242)	2276	if (q < -52) return 2;
2386	return 8;	2277	if (q < 52) return 1;
		2278	if (q < 309) return 8;
		2279
2387	return 7;	2280	return 7;
2388	}	2281	}
2389		2282	#endif
2390	if (q < -242)
2391	return 7;
2392	if (q < -41)
2393	return 6;
2394	if (q < 41)
2395	return 5;
2396	if (q < 242)
2397	return 4;
2398
2399	return 3;
2400	}
2401
2402	/*
2403	* absdir(int): Returns a number between 1 and 8, which represent
2404	* the "absolute" direction of a number (it actually takes care of
2405	* "overflow" in previous calculations of a direction).
2406	*/
2407
2408	int
2409	absdir (int d)
2410	{
2411	while (d < 1)
2412	d += 8;
2413	while (d > 8)
2414	d -= 8;
2415	return d;
2416	}	2283	}
2417		2284
2418	/*	2285	/*
2419	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is	2286	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is
2420	* between two directions (which are expected to be absolute (see absdir())	2287	* between two directions (which are expected to be absolute (see absdir())
2421	*/	2288	*/
2422
2423	int	2289	int
2424	dirdiff (int dir1, int dir2)	2290	dirdiff (int dir1, int dir2)
2425	{	2291	{
2426	int
2427	d;
2428
2429	d = abs (dir1 - dir2);	2292	int d = abs (dir1 - dir2);
2430	if (d > 4)	2293
2431	d = 8 - d;	2294	return d > 4 ? 8 - d : d;
2432	return d;
2433	}	2295	}
2434		2296
2435	/* peterm:	2297	/* peterm:
2436	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.	2298	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.
2437	* Basically, this is a table of directions, and what directions	2299	* Basically, this is a table of directions, and what directions
…		…
2439	* This basically means that if direction is 15, then it could either go	2301	* This basically means that if direction is 15, then it could either go
2440	* direction 4, 14, or 16 to get back to where we are.	2302	* direction 4, 14, or 16 to get back to where we are.
2441	* Moved from spell_util.c to object.c with the other related direction	2303	* Moved from spell_util.c to object.c with the other related direction
2442	* functions.	2304	* functions.
2443	*/	2305	*/
2444
2445	int
2446	reduction_dir[SIZEOFFREE][3] = {	2306	static const int reduction_dir[SIZEOFFREE][3] = {
2447	{0, 0, 0}, /* 0 */	2307	{0, 0, 0}, /* 0 */
2448	{0, 0, 0}, /* 1 */	2308	{0, 0, 0}, /* 1 */
2449	{0, 0, 0}, /* 2 */	2309	{0, 0, 0}, /* 2 */
2450	{0, 0, 0}, /* 3 */	2310	{0, 0, 0}, /* 3 */
2451	{0, 0, 0}, /* 4 */	2311	{0, 0, 0}, /* 4 */
…		…
2499	* find a path to that monster that we found. If not,	2359	* find a path to that monster that we found. If not,
2500	* we don't bother going toward it. Returns 1 if we	2360	* we don't bother going toward it. Returns 1 if we
2501	* can see a direct way to get it	2361	* can see a direct way to get it
2502	* Modified to be map tile aware -.MSW	2362	* Modified to be map tile aware -.MSW
2503	*/	2363	*/
2504
2505
2506	int	2364	int
2507	can_see_monsterP (maptile *m, int x, int y, int dir)	2365	can_see_monsterP (maptile *m, int x, int y, int dir)
2508	{	2366	{
2509	sint16 dx, dy;	2367	sint16 dx, dy;
2510	int
2511	mflags;	2368	int mflags;
2512		2369
2513	if (dir < 0)	2370	if (dir < 0)
2514	return 0; /* exit condition: invalid direction */	2371	return 0; /* exit condition: invalid direction */
2515		2372
2516	dx = x + freearr_x[dir];	2373	dx = x + freearr_x[dir];
…		…
2529	return 0;	2386	return 0;
2530		2387
2531	/* yes, can see. */	2388	/* yes, can see. */
2532	if (dir < 9)	2389	if (dir < 9)
2533	return 1;	2390	return 1;
		2391
2534	return can_see_monsterP (m, x, y, reduction_dir[dir][0]) |	2392	return can_see_monsterP (m, x, y, reduction_dir[dir][0])
2535	can_see_monsterP (m, x, y, reduction_dir[dir][1]) | can_see_monsterP (m, x, y, reduction_dir[dir][2]);	2393	| can_see_monsterP (m, x, y, reduction_dir[dir][1])
		2394	| can_see_monsterP (m, x, y, reduction_dir[dir][2]);
2536	}	2395	}
2537
2538
2539		2396
2540	/*	2397	/*
2541	* can_pick(picker, item): finds out if an object is possible to be	2398	* can_pick(picker, item): finds out if an object is possible to be
2542	* picked up by the picker. Returnes 1 if it can be	2399	* picked up by the picker. Returnes 1 if it can be
2543	* picked up, otherwise 0.	2400	* picked up, otherwise 0.
…		…
2545	* Cf 0.91.3 - don't let WIZ's pick up anything - will likely cause	2402	* Cf 0.91.3 - don't let WIZ's pick up anything - will likely cause
2546	* core dumps if they do.	2403	* core dumps if they do.
2547	*	2404	*
2548	* Add a check so we can't pick up invisible objects (0.93.8)	2405	* Add a check so we can't pick up invisible objects (0.93.8)
2549	*/	2406	*/
2550
2551	int	2407	int
2552	can_pick (const object *who, const object *item)	2408	can_pick (const object *who, const object *item)
2553	{	2409	{
2554	return /*QUERY_FLAG(who,FLAG_WIZ)|| */	2410	return /*who->flag [FLAG_WIZ]|| */
2555	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&	2411	(item->weight > 0 && !item->flag [FLAG_NO_PICK] &&
2556	!QUERY_FLAG (item, FLAG_ALIVE) && !item->invisible && (who->type == PLAYER || item->weight < who->weight / 3));	2412	!item->flag [FLAG_ALIVE] && !item->invisible && (who->is_player () || item->weight < who->weight / 3));
2557	}	2413	}
2558
2559		2414
2560	/*	2415	/*
2561	* create clone from object to another	2416	* create clone from object to another
2562	*/	2417	*/
2563	object *	2418	object *
2564	object_create_clone (object *asrc)	2419	object::deep_clone ()
2565	{	2420	{
2566	object *	2421	assert (("deep_clone called on non-head object", is_head ()));
2567	dst = NULL, *tmp, *src, *part, *prev, *item;
2568		2422
2569	if (!asrc)	2423	object *dst = clone ();
2570	return NULL;
2571	src = asrc;
2572	if (src->head)
2573	src = src->head;
2574		2424
2575	prev = NULL;	2425	object *prev = dst;
2576	for (part = src; part; part = part->more)	2426	for (object *part = this->more; part; part = part->more)
2577	{	2427	{
2578	tmp = get_object ();	2428	object *tmp = part->clone ();
2579	copy_object (part, tmp);
2580	tmp->x -= src->x;
2581	tmp->y -= src->y;
2582	if (!part->head)
2583	{
2584	dst = tmp;
2585	tmp->head = NULL;
2586	}
2587	else
2588	{
2589	tmp->head = dst;	2429	tmp->head = dst;
2590	}
2591	tmp->more = NULL;
2592	if (prev)
2593	prev->more = tmp;	2430	prev->more = tmp;
2594	prev = tmp;	2431	prev = tmp;
2595	}	2432	}
2596		2433
2597	for (item = src->inv; item; item = item->below)	2434	for (object *item = inv; item; item = item->below)
2598	insert_ob_in_ob (object_create_clone (item), dst);	2435	insert_ob_in_ob (item->deep_clone (), dst);
2599		2436
2600	return dst;	2437	return dst;
2601	}
2602
2603	/* GROS - Creates an object using a string representing its content. */
2604	/* Basically, we save the content of the string to a temp file, then call */
2605	/* load_object on it. I admit it is a highly inefficient way to make things, */
2606	/* but it was simple to make and allows reusing the load_object function. */
2607	/* Remember not to use load_object_str in a time-critical situation. */
2608	/* Also remember that multiparts objects are not supported for now. */
2609
2610	object *
2611	load_object_str (const char *obstr)
2612	{
2613	object *op;
2614	char filename[MAX_BUF];
2615
2616	sprintf (filename, "%s/cfloadobstr2044", settings.tmpdir);
2617
2618	FILE *tempfile = fopen (filename, "w");
2619
2620	if (tempfile == NULL)
2621	{
2622	LOG (llevError, "Error - Unable to access load object temp file\n");
2623	return NULL;
2624	}
2625
2626	fprintf (tempfile, obstr);
2627	fclose (tempfile);
2628
2629	op = get_object ();
2630
2631	object_thawer thawer (filename);
2632
2633	if (thawer)
2634	load_object (thawer, op, 0);
2635
2636	LOG (llevDebug, " load str completed, object=%s\n", &op->name);
2637	CLEAR_FLAG (op, FLAG_REMOVED);
2638
2639	return op;
2640	}	2438	}
2641		2439
2642	/* This returns the first object in who's inventory that	2440	/* This returns the first object in who's inventory that
2643	* has the same type and subtype match.	2441	* has the same type and subtype match.
2644	* returns NULL if no match.	2442	* returns NULL if no match.
2645	*/	2443	*/
2646	object *	2444	object *
2647	find_obj_by_type_subtype (const object *who, int type, int subtype)	2445	find_obj_by_type_subtype (const object *who, int type, int subtype)
2648	{	2446	{
2649	object *tmp;
2650
2651	for (tmp = who->inv; tmp; tmp = tmp->below)	2447	for (object *tmp = who->inv; tmp; tmp = tmp->below)
2652	if (tmp->type == type && tmp->subtype == subtype)	2448	if (tmp->type == type && tmp->subtype == subtype)
2653	return tmp;	2449	return tmp;
2654		2450
2655	return NULL;
2656	}
2657
2658	/* If ob has a field named key, return the link from the list,
2659	* otherwise return NULL.
2660	*
2661	* key must be a passed in shared string - otherwise, this won't
2662	* do the desired thing.
2663	*/
2664	key_value *
2665	get_ob_key_link (const object *ob, const char *key)
2666	{
2667	key_value *link;
2668
2669	for (link = ob->key_values; link != NULL; link = link->next)
2670	if (link->key == key)
2671	return link;
2672
2673	return NULL;
2674	}
2675
2676	/*
2677	* Returns the value of op has an extra_field for key, or NULL.
2678	*
2679	* The argument doesn't need to be a shared string.
2680	*
2681	* The returned string is shared.
2682	*/
2683	const char *
2684	get_ob_key_value (const object *op, const char *const key)
2685	{
2686	key_value *link;
2687	shstr_cmp canonical_key (key);
2688
2689	if (!canonical_key)
2690	{
2691	/* 1. There being a field named key on any object
2692	* implies there'd be a shared string to find.
2693	* 2. Since there isn't, no object has this field.
2694	* 3. Therefore, *this* object doesn't have this field.
2695	*/
2696	return 0;
2697	}
2698
2699	/* This is copied from get_ob_key_link() above -
2700	* only 4 lines, and saves the function call overhead.
2701	*/
2702	for (link = op->key_values; link; link = link->next)
2703	if (link->key == canonical_key)
2704	return link->value;
2705
2706	return 0;	2451	return 0;
2707	}	2452	}
2708		2453
2709		2454	/* Zero the key_values on op, decrementing the shared-string
2710	/*	2455	* refcounts and freeing the links.
2711	* Updates the canonical_key in op to value.
2712	*	2456	*/
2713	* canonical_key is a shared string (value doesn't have to be).	2457	void
2714	*	2458	key_values::clear ()
2715	* Unless add_key is TRUE, it won't add fields, only change the value of existing
2716	* keys.
2717	*
2718	* Returns TRUE on success.
2719	*/
2720	int
2721	set_ob_key_value_s (object *op, const shstr & canonical_key, const char *value, int add_key)
2722	{	2459	{
2723	key_value *	2460	for (key_value *kvp = first; kvp; )
2724	field = NULL, *last = NULL;	2461	{
2725		2462	key_value *next = kvp->next;
2726	for (field = op->key_values; field != NULL; field = field->next)	2463	delete kvp;
		2464	kvp = next;
2727	{	2465	}
2728	if (field->key != canonical_key)	2466
		2467	first = 0;
		2468	}
		2469
		2470	shstr_tmp
		2471	key_values::get (shstr_tmp key) const
		2472	{
		2473	for (key_value *kv = first; kv; kv = kv->next)
		2474	if (kv->key == key)
		2475	return kv->value;
		2476
		2477	return shstr ();
		2478	}
		2479
		2480	void
		2481	key_values::add (shstr_tmp key, shstr_tmp value)
		2482	{
		2483	key_value *kv = new key_value;
		2484
		2485	kv->next = first;
		2486	kv->key = key;
		2487	kv->value = value;
		2488
		2489	first = kv;
		2490	}
		2491
		2492	void
		2493	key_values::set (shstr_tmp key, shstr_tmp value)
		2494	{
		2495	for (key_value *kv = first; kv; kv = kv->next)
		2496	if (kv->key == key)
2729	{	2497	{
2730	last = field;	2498	kv->value = value;
2731	continue;	2499	return;
2732	}	2500	}
2733		2501
2734	if (value)	2502	add (key, value);
2735	field->value = value;	2503	}
2736	else	2504
		2505	void
		2506	key_values::del (shstr_tmp key)
		2507	{
		2508	for (key_value **kvp = &first; *kvp; kvp = &(*kvp)->next)
		2509	if ((*kvp)->key == key)
2737	{	2510	{
2738	/* Basically, if the archetype has this key set,	2511	key_value *kv = *kvp;
2739	* we need to store the null value so when we save	2512	*kvp = (*kvp)->next;
2740	* it, we save the empty value so that when we load,	2513	delete kv;
2741	* we get this value back again.	2514	return;
2742	*/
2743	if (get_ob_key_link (&op->arch->clone, canonical_key))
2744	field->value = 0;
2745	else
2746	{
2747	if (last)
2748	last->next = field->next;
2749	else
2750	op->key_values = field->next;
2751
2752	delete field;
2753	}
2754	}	2515	}
2755	return TRUE;	2516	}
		2517
		2518	void
		2519	key_values::reverse ()
		2520	{
		2521	key_value *prev = 0;
		2522	key_value *head = first;
		2523
		2524	while (head)
2756	}	2525	{
2757	/* IF we get here, key doesn't exist */	2526	key_value *node = head;
2758		2527	head = head->next;
2759	/* No field, we'll have to add it. */	2528	node->next = prev;
2760		2529	prev = node;
2761	if (!add_key)
2762	{	2530	}
2763	return FALSE;
2764	}
2765	/* There isn't any good reason to store a null
2766	* value in the key/value list. If the archetype has
2767	* this key, then we should also have it, so shouldn't
2768	* be here. If user wants to store empty strings,
2769	* should pass in ""
2770	*/
2771	if (value == NULL)
2772	return TRUE;
2773		2531
2774	field = new key_value;	2532	first = prev;
2775
2776	field->key = canonical_key;
2777	field->value = value;
2778	/* Usual prepend-addition. */
2779	field->next = op->key_values;
2780	op->key_values = field;
2781
2782	return TRUE;
2783	}	2533	}
2784		2534
2785	/*	2535	key_values &
2786	* Updates the key in op to value.	2536	key_values::operator =(const key_values &kv)
2787	*
2788	* If add_key is FALSE, this will only update existing keys,
2789	* and not add new ones.
2790	* In general, should be little reason FALSE is ever passed in for add_key
2791	*
2792	* Returns TRUE on success.
2793	*/
2794	int
2795	set_ob_key_value (object *op, const char *key, const char *value, int add_key)
2796	{	2537	{
2797	shstr key_ (key);	2538	clear ();
2798		2539
2799	return set_ob_key_value_s (op, key_, value, add_key);	2540	for (key_value *kvp = kv.first; kvp; kvp = kvp->next)
		2541	add (kvp->key, kvp->value);
		2542
		2543	reverse ();
2800	}	2544	}
2801		2545
2802	object::depth_iterator::depth_iterator (object *container)	2546	object::depth_iterator::depth_iterator (object *container)
2803	: iterator_base (container)	2547	: iterator_base (container)
2804	{	2548	{
…		…
2818	}	2562	}
2819	else	2563	else
2820	item = item->env;	2564	item = item->env;
2821	}	2565	}
2822		2566
		2567	const char *
		2568	object::flag_desc (char *desc, int len) const
		2569	{
		2570	char *p = desc;
		2571	bool first = true;
		2572
		2573	*p = 0;
		2574
		2575	for (int i = 0; i < NUM_FLAGS; i++)
		2576	{
		2577	if (len <= 10) // magic constant!
		2578	{
		2579	snprintf (p, len, ",...");
		2580	break;
		2581	}
		2582
		2583	if (flag [i])
		2584	{
		2585	int cnt = snprintf (p, len, "%s%d", first ? "" : ",", i);
		2586	len -= cnt;
		2587	p += cnt;
		2588	first = false;
		2589	}
		2590	}
		2591
		2592	return desc;
		2593	}
		2594
2823	// return a suitable string describing an objetc in enough detail to find it	2595	// return a suitable string describing an object in enough detail to find it
2824	const char *	2596	const char *
2825	object::debug_desc (char *info) const	2597	object::debug_desc (char *info) const
2826	{	2598	{
		2599	char flagdesc[512];
2827	char info2[256 * 3];	2600	char info2[256 * 4];
2828	char *p = info;	2601	char *p = info;
2829		2602
2830	p += snprintf (p, 256, "%d=\"%s%s%s\"",	2603	p += snprintf (p, 512, "{cnt:%d,uuid:%s,name:\"%s\"%s%s%s,flags:[%s],type:%d}",
2831	count,	2604	count,
		2605	uuid.c_str (),
2832	&name,	2606	&name,
2833	title ? " " : "",	2607	title ? ",title:\"" : "",
2834	title ? (const char *)title : "");	2608	title ? (const char *)title : "",
		2609	title ? "\"" : "",
		2610	flag_desc (flagdesc, 512), type);
2835		2611
2836	if (env)	2612	if (!flag[FLAG_REMOVED] && env)
2837	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));	2613	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));
2838		2614
2839	if (map)	2615	if (map)
2840	p += snprintf (p, 256, "(on %s@%d+%d)", map->path, x, y);	2616	p += snprintf (p, 256, "(on %s@%d+%d)", &map->path, x, y);
2841		2617
2842	return info;	2618	return info;
2843	}	2619	}
2844		2620
2845	const char *	2621	const char *
2846	object::debug_desc () const	2622	object::debug_desc () const
2847	{	2623	{
2848	static char info[256 * 3];	2624	static char info[3][256 * 4];
		2625	static int info_idx;
		2626
2849	return debug_desc (info);	2627	return debug_desc (info [++info_idx % 3]);
2850	}	2628	}
2851		2629
		2630	struct region *
		2631	object::region () const
		2632	{
		2633	return map ? map->region (x, y)
		2634	: region::default_region ();
		2635	}
		2636
		2637	void
		2638	object::open_container (object *new_container)
		2639	{
		2640	if (container == new_container)
		2641	return;
		2642
		2643	object *old_container = container;
		2644
		2645	if (old_container)
		2646	{
		2647	if (INVOKE_OBJECT (CLOSE, old_container, ARG_OBJECT (this)))
		2648	return;
		2649
		2650	#if 0
		2651	// remove the "Close old_container" object.
		2652	if (object *closer = old_container->inv)
		2653	if (closer->type == CLOSE_CON)
		2654	closer->destroy ();
		2655	#endif
		2656
		2657	// make sure the container is available
		2658	esrv_send_item (this, old_container);
		2659
		2660	old_container->flag [FLAG_APPLIED] = false;
		2661	container = 0;
		2662
		2663	// client needs item update to make it work, client bug requires this to be separate
		2664	esrv_update_item (UPD_FLAGS, this, old_container);
		2665
		2666	new_draw_info_format (NDI_UNIQUE, 0, this, "You close %s.", old_container->query_name ());
		2667	play_sound (sound_find ("chest_close"));
		2668	}
		2669
		2670	if (new_container)
		2671	{
		2672	if (INVOKE_OBJECT (OPEN, new_container, ARG_OBJECT (this)))
		2673	return;
		2674
		2675	// TODO: this does not seem to serve any purpose anymore?
		2676	#if 0
		2677	// insert the "Close Container" object.
		2678	if (archetype *closer = new_container->other_arch)
		2679	{
		2680	object *closer = new_container->other_arch->instance ();
		2681	closer->flag [FLAG_NO_MAP_SAVE] = 1;
		2682	new_container->insert (closer);
		2683	}
		2684	#endif
		2685
		2686	new_draw_info_format (NDI_UNIQUE, 0, this, "You open %s.", new_container->query_name ());
		2687
		2688	// make sure the container is available, client bug requires this to be separate
		2689	esrv_send_item (this, new_container);
		2690
		2691	new_container->flag [FLAG_APPLIED] = true;
		2692	container = new_container;
		2693
		2694	// client needs flag change
		2695	esrv_update_item (UPD_FLAGS, this, new_container);
		2696	esrv_send_inventory (this, new_container);
		2697	play_sound (sound_find ("chest_open"));
		2698	}
		2699	// else if (!old_container->env && contr && contr->ns)
		2700	// contr->ns->floorbox_reset ();
		2701	}
		2702
		2703	object *
		2704	object::force_find (shstr_tmp name)
		2705	{
		2706	/* cycle through his inventory to look for the MARK we want to
		2707	* place
		2708	*/
		2709	for (object *tmp = inv; tmp; tmp = tmp->below)
		2710	if (tmp->type == FORCE && tmp->slaying == name)
		2711	return splay (tmp);
		2712
		2713	return 0;
		2714	}
		2715
		2716	//-GPL
		2717
		2718	void
		2719	object::force_set_timer (int duration)
		2720	{
		2721	this->duration = 1;
		2722	this->speed_left = -1.f;
		2723
		2724	this->set_speed (duration ? 1.f / duration : 0.f);
		2725	}
		2726
		2727	object *
		2728	object::force_add (shstr_tmp name, int duration)
		2729	{
		2730	if (object *force = force_find (name))
		2731	force->destroy ();
		2732
		2733	object *force = archetype::get (FORCE_NAME);
		2734
		2735	force->slaying = name;
		2736	force->force_set_timer (duration);
		2737	force->flag [FLAG_APPLIED] = true;
		2738
		2739	return insert (force);
		2740	}
		2741
		2742	void
		2743	object::play_sound (faceidx sound) const
		2744	{
		2745	if (!sound)
		2746	return;
		2747
		2748	if (is_on_map ())
		2749	map->play_sound (sound, x, y);
		2750	else if (object *pl = in_player ())
		2751	pl->contr->play_sound (sound);
		2752	}
		2753
		2754	void
		2755	object::say_msg (const char *msg) const
		2756	{
		2757	if (is_on_map ())
		2758	map->say_msg (msg, x, y);
		2759	else if (object *pl = in_player ())
		2760	pl->contr->play_sound (sound);
		2761	}
		2762
		2763	void
		2764	object::make_noise ()
		2765	{
		2766	// we do not model noise in the map, so instead put
		2767	// a temporary light into the noise source
		2768	// could use the map instead, but that's less reliable for our
		2769	// goal, which is to make invisibility a bit harder to exploit
		2770
		2771	// currently only works sensibly for players
		2772	if (!is_player ())
		2773	return;
		2774
		2775	// find old force, or create new one
		2776	object *force = force_find (shstr_noise_force);
		2777
		2778	if (force)
		2779	force->speed_left = -1.f; // patch old speed up
		2780	else
		2781	{
		2782	force = archetype::get (shstr_noise_force);
		2783
		2784	force->slaying = shstr_noise_force;
		2785	force->stats.food = 1;
		2786	force->speed_left = -1.f;
		2787
		2788	force->set_speed (1.f / 4.f);
		2789	force->flag [FLAG_IS_USED_UP] = true;
		2790	force->flag [FLAG_APPLIED] = true;
		2791
		2792	insert (force);
		2793	}
		2794	}
		2795
		2796	void object::change_move_type (MoveType mt)
		2797	{
		2798	if (move_type == mt)
		2799	return;
		2800
		2801	if (is_on_map ())
		2802	{
		2803	// we are on the map, so handle move_on/off effects
		2804	remove ();
		2805	move_type = mt;
		2806	map->insert (this, x, y, this);
		2807	}
		2808	else
		2809	move_type = mt;
		2810	}
		2811
		2812	/* object should be a player.
		2813	* we return the object the player has marked with the 'mark' command
		2814	* below. If no match is found (or object has changed), we return
		2815	* NULL. We leave it up to the calling function to print messages if
		2816	* nothing is found.
		2817	*/
		2818	object *
		2819	object::mark () const
		2820	{
		2821	if (contr && contr->mark && contr->mark->env == this)
		2822	return contr->mark;
		2823	else
		2824	return 0;
		2825	}
		2826
		2827	// put marked object first in the inventory
		2828	// this is used by identify-like spells so players can influence
		2829	// the order a bit.
		2830	void
		2831	object::splay_marked ()
		2832	{
		2833	if (object *marked = mark ())
		2834	splay (marked);
		2835	}
		2836

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