ViewVC Help

View File | Revision Log | Show Annotations | Download File

/cvs/deliantra/server/common/object.C

Comparing deliantra/server/common/object.C (file contents):
Revision 1.42 by root, Thu Sep 14 01:19:47 2006 UTC vs.
Revision 1.339 by root, Fri Jul 2 17:39:23 2010 UTC

1
2	/*	1	/*
3	CrossFire, A Multiplayer game for X-windows	2	* This file is part of Deliantra, the Roguelike Realtime MMORPG.
4		3	*
		4	* Copyright (©) 2005,2006,2007,2008,2009,2010 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
5	Copyright (C) 2001 Mark Wedel & Crossfire Development Team	5	* Copyright (©) 2001 Mark Wedel & Crossfire Development Team
6	Copyright (C) 1992 Frank Tore Johansen	6	* Copyright (©) 1992 Frank Tore Johansen
7		7	*
8	This program is free software; you can redistribute it and/or modify	8	* Deliantra is free software: you can redistribute it and/or modify it under
9	it under the terms of the GNU General Public License as published by	9	* the terms of the Affero GNU General Public License as published by the
10	the Free Software Foundation; either version 2 of the License, or	10	* Free Software Foundation, either version 3 of the License, or (at your
11	(at your option) any later version.	11	* option) any later version.
12		12	*
13	This program is distributed in the hope that it will be useful,	13	* This program is distributed in the hope that it will be useful,
14	but WITHOUT ANY WARRANTY; without even the implied warranty of	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
15	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16	GNU General Public License for more details.	16	* GNU General Public License for more details.
17		17	*
18	You should have received a copy of the GNU General Public License	18	* You should have received a copy of the Affero GNU General Public License
19	along with this program; if not, write to the Free Software	19	* and the GNU General Public License along with this program. If not, see
20	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.	20	* <http://www.gnu.org/licenses/>.
21		21	*
22	The authors can be reached via e-mail at crossfire-devel@real-time.com	22	* The authors can be reached via e-mail to <support@deliantra.net>
23	*/	23	*/
24		24
25	/* Eneq(@csd.uu.se): Added weight-modifiers in environment of objects.
26	sub/add_weight will transcend the environment updating the carrying
27	variable. */
28	#include <global.h>	25	#include <global.h>
29	#include <stdio.h>	26	#include <stdio.h>
30	#include <sys/types.h>	27	#include <sys/types.h>
31	#include <sys/uio.h>	28	#include <sys/uio.h>
32	#include <object.h>	29	#include <object.h>
33	#include <funcpoint.h>	30	#include <sproto.h>
34	#include <loader.h>
35		31
36	int nrofallocobjects = 0;	32	#include <bitset>
37	static UUID uuid;	33
		34	UUID UUID::cur;
		35	static uint64_t seq_next_save;
38	const uint64 UUID_SKIP = 1<<19;	36	static const uint64 UUID_GAP = 1<<19;
		37	uint32_t mapspace::smellcount = 10000;
39		38
40	object *objects; /* Pointer to the list of used objects */	39	objectvec objects;
41	object *active_objects; /* List of active objects that need to be processed */	40	activevec actives;
42		41
43	short freearr_x[SIZEOFFREE] = { 0, 0, 1, 1, 1, 0, -1, -1, -1, 0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2, -2, -2, -2, -1,	42	freelist_item *object::freelist;
		43	uint32_t object::object_count;
		44	uint32_t object::free_count;
		45	uint32_t object::create_count;
		46	uint32_t object::destroy_count;
		47
		48	//+GPL
		49
		50	short freearr_x[SIZEOFFREE] = {
		51	0,
		52	0, 1, 1, 1, 0, -1, -1, -1,
		53	0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2, -2, -2, -2, -1,
44	0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3, -3, -3, -3, -3, -2, -1	54	0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3, -3, -3, -3, -3, -2, -1
45	};	55	};
46	short freearr_y[SIZEOFFREE] = { 0, -1, -1, 0, 1, 1, 1, 0, -1, -2, -2, -2, -1, 0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2,	56	short freearr_y[SIZEOFFREE] = {
		57	0,
		58	-1, -1, 0, 1, 1, 1, 0, -1,
		59	-2, -2, -2, -1, 0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2,
47	-3, -3, -3, -3, -2, -1, 0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3	60	-3, -3, -3, -3, -2, -1, 0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3
48	};
49	int maxfree[SIZEOFFREE] = { 0, 9, 10, 13, 14, 17, 18, 21, 22, 25, 26, 27, 30, 31, 32, 33, 36, 37, 39, 39, 42, 43, 44, 45,
50	48, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49
51	};	61	};
52	int freedir[SIZEOFFREE] = {	62	int freedir[SIZEOFFREE] = {
53	0, 1, 2, 3, 4, 5, 6, 7, 8, 1, 2, 2, 2, 3, 4, 4, 4, 5, 6, 6, 6, 7, 8, 8, 8,	63	0,
		64	1, 2, 3, 4, 5, 6, 7, 8,
		65	1, 2, 2, 2, 3, 4, 4, 4, 5, 6, 6, 6, 7, 8, 8, 8,
54	1, 2, 2, 2, 2, 2, 3, 4, 4, 4, 4, 4, 5, 6, 6, 6, 6, 6, 7, 8, 8, 8, 8, 8	66	1, 2, 2, 2, 2, 2, 3, 4, 4, 4, 4, 4, 5, 6, 6, 6, 6, 6, 7, 8, 8, 8, 8, 8
55	};	67	};
56		68
		69	static int maxfree[SIZEOFFREE] = {
		70	0,
		71	9, 10, 13, 14, 17, 18, 21, 22,
		72	25, 26, 27, 30, 31, 32, 33, 36, 37, 39, 39, 42, 43, 44, 45, 48,
		73	49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49
		74	};
		75
		76	const char *wall_suffix[16] = {
		77	"0",
		78	"1_3",
		79	"1_4",
		80	"2_1_2",
		81	"1_2",
		82	"2_2_4",
		83	"2_2_1",
		84	"3_1",
		85	"1_1",
		86	"2_2_3",
		87	"2_2_2",
		88	"3_3",
		89	"2_1_1",
		90	"3_4",
		91	"3_2",
		92	"4"
		93	};
		94
57	static void	95	static void
58	write_uuid (void)	96	write_uuid (uval64 skip, bool sync)
59	{	97	{
60	char filename1[MAX_BUF], filename2[MAX_BUF];	98	CALL_BEGIN (2);
61		99	CALL_ARG_SV (newSVval64 (skip));
62	sprintf (filename1, "%s/uuid", settings.localdir);	100	CALL_ARG_SV (boolSV (sync));
63	sprintf (filename2, "%s/uuid~", settings.localdir);	101	CALL_CALL ("cf::write_uuid", G_DISCARD);
64		102	CALL_END;
65	FILE *fp;
66
67	if (!(fp = fopen (filename2, "w")))
68	{
69	LOG (llevError, "ERROR: cannot open %s for writing, unable to write UUID!\n", filename2);
70	return;
71	}
72
73	fprintf (fp, "<1,%llx>\n", (unsigned long long)uuid.seq + UUID_SKIP * 2);
74	fclose (fp);
75	rename (filename2, filename1);
76	}	103	}
77		104
78	static void	105	static void
79	read_uuid (void)	106	read_uuid ()
80	{	107	{
81	char filename[MAX_BUF];	108	char filename[MAX_BUF];
82		109
83	sprintf (filename, "%s/uuid", settings.localdir);	110	sprintf (filename, "%s/uuid", settings.localdir);
		111
		112	seq_next_save = 0;
84		113
85	FILE *fp;	114	FILE *fp;
86		115
87	if (!(fp = fopen (filename, "r")))	116	if (!(fp = fopen (filename, "r")))
88	{	117	{
89	if (errno == ENOENT)	118	if (errno == ENOENT)
90	{	119	{
91	LOG (llevInfo, "RESET uid to 1\n");	120	LOG (llevInfo, "RESET uid to 1\n");
92	uuid.seq = 0;	121	UUID::cur.seq = 0;
93	write_uuid ();	122	write_uuid (UUID_GAP, true);
94	return;	123	return;
95	}	124	}
96		125
97	LOG (llevError, "FATAL: cannot open %s for reading!\n", filename);	126	LOG (llevError, "FATAL: cannot open %s for reading!\n", filename);
98	_exit (1);	127	_exit (1);
99	}	128	}
100		129
101	int version;	130	char buf [UUID::MAX_LEN];
102	unsigned long long uid;	131	buf[0] = 0;
103	if (2 != fscanf (fp, "<%d,%llx>\n", &version, &uid) || version != 1)	132	fgets (buf, sizeof (buf), fp);
		133
		134	if (!UUID::cur.parse (buf))
104	{	135	{
105	LOG (llevError, "FATAL: error reading uid from %s!\n", filename);	136	LOG (llevError, "FATAL: error reading uid from %s (%s)!\n", filename, buf);
106	_exit (1);	137	_exit (1);
107	}	138	}
108		139
109	uuid.seq = uid;
110	write_uuid ();
111	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);
112	fclose (fp);	143	fclose (fp);
113	}	144	}
114		145
115	UUID	146	UUID
116	gen_uuid ()	147	UUID::gen ()
117	{	148	{
118	UUID uid;	149	UUID uid;
119		150
120	uid.seq = ++uuid.seq;	151	uid.seq = ++cur.seq;
121		152
122	if (!(uuid.seq & (UUID_SKIP - 1)))	153	if (expect_false (cur.seq >= seq_next_save))
123	write_uuid ();	154	{
		155	seq_next_save = UUID::cur.seq + (UUID_GAP >> 1);
		156	write_uuid (UUID_GAP, false);
		157	}
		158
124		159
125	return uid;	160	return uid;
126	}	161	}
127		162
128	void	163	void
129	init_uuid ()	164	UUID::init ()
130	{	165	{
131	read_uuid ();	166	read_uuid ();
132	}	167	}
133		168
		169	bool
		170	UUID::parse (const char *s)
		171	{
		172	if (*s++ != '<' || *s++ != '1' || *s++ != '.')
		173	return false;
		174
		175	seq = 0;
		176
		177	while (*s != '>')
		178	{
		179	if (*s < '0')
		180	return false;
		181
		182	// this gives nice branchless code with gcc
		183	assert ('0' < 'a' && '0' == 48 && 'a' == 97);
		184	int digit = (*s + (*s & 0x40 ? 9 : 0)) & 15;
		185
		186	seq = (seq << 4) | digit;
		187
		188	++s;
		189	}
		190
		191	return true;
		192	}
		193
		194	char *
		195	UUID::append (char *buf) const
		196	{
		197	*buf++ = '<';
		198	*buf++ = '1';
		199	*buf++ = '.';
		200
		201	uint64_t seq = this->seq;
		202	const int bits = 64;
		203	char nz = 0;
		204	static const char tohex [] = "0123456789abcdef";
		205
		206	// assert (len >= 3 + bits / 4 + 1 + 1);
		207	for (int i = bits / 4; --i; )
		208	{
		209	uint8_t digit = seq >> (bits - 4);
		210
		211	*buf = tohex [digit];
		212	nz |= digit;
		213	buf += nz ? 1 : 0;
		214	seq <<= 4;
		215	}
		216
		217	// last digit is special - always emit
		218	uint8_t digit = seq >> (bits - 4);
		219	*buf++ = tohex [digit];
		220
		221	*buf++ = '>';
		222
		223	return buf;
		224	}
		225
		226	char *
		227	UUID::c_str () const
		228	{
		229	static char buf [MAX_LEN];
		230	*append (buf) = 0;
		231	return buf;
		232	}
		233
134	/* Returns TRUE if every key_values in wants has a partner with the same value in has. */	234	/* Returns TRUE if every key_values in wants has a partner with the same value in has. */
135	static int	235	static bool
136	compare_ob_value_lists_one (const object *wants, const object *has)	236	compare_ob_value_lists_one (const object *wants, const object *has)
137	{	237	{
138	key_value *wants_field;
139
140	/* n-squared behaviour (see get_ob_key_link()), but I'm hoping both	238	/* n-squared behaviour (see kv_get), but I'm hoping both
141	* objects with lists are rare, and lists stay short. If not, use a	239	* objects with lists are rare, and lists stay short. If not, use a
142	* different structure or at least keep the lists sorted...	240	* different structure or at least keep the lists sorted...
143	*/	241	*/
144		242
145	/* For each field in wants, */	243	/* For each field in wants, */
146	for (wants_field = wants->key_values; wants_field != NULL; wants_field = wants_field->next)	244	for (key_value *kv = wants->key_values; kv; kv = kv->next)
147	{	245	if (has->kv_get (kv->key) != kv->value)
148	key_value *has_field;	246	return false;
149
150	/* Look for a field in has with the same key. */
151	has_field = get_ob_key_link (has, wants_field->key);
152
153	if (has_field == NULL)
154	{
155	/* No field with that name. */
156	return FALSE;
157	}
158
159	/* Found the matching field. */
160	if (has_field->value != wants_field->value)
161	{
162	/* Values don't match, so this half of the comparison is false. */
163	return FALSE;
164	}
165
166	/* If we get here, we found a match. Now for the next field in wants. */
167	}
168		247
169	/* If we get here, every field in wants has a matching field in has. */	248	/* If we get here, every field in wants has a matching field in has. */
170	return TRUE;	249	return true;
171	}	250	}
172		251
173	/* Returns TRUE if ob1 has the same key_values as ob2. */	252	/* Returns TRUE if ob1 has the same key_values as ob2. */
174	static int	253	static bool
175	compare_ob_value_lists (const object *ob1, const object *ob2)	254	compare_ob_value_lists (const object *ob1, const object *ob2)
176	{	255	{
177	/* However, there may be fields in has which aren't partnered in wants,	256	/* However, there may be fields in has which aren't partnered in wants,
178	* so we need to run the comparison *twice*. :(	257	* so we need to run the comparison *twice*. :(
179	*/	258	*/
180	return compare_ob_value_lists_one (ob1, ob2) && compare_ob_value_lists_one (ob2, ob1);	259	return compare_ob_value_lists_one (ob1, ob2)
		260	&& compare_ob_value_lists_one (ob2, ob1);
181	}	261	}
182		262
183	/* Function examines the 2 objects given to it, and returns true if	263	/* Function examines the 2 objects given to it, and returns true if
184	* they can be merged together.	264	* they can be merged together.
185	*	265	*
186	* 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
187	* replaces - this is mostly for clarity - a decent compiler should hopefully	267	* replaces - this is mostly for clarity - a decent compiler should hopefully
188	* reduce this to the same efficiency.	268	* reduce this to the same efficiency.
189	*	269	*
190	* Check nrof variable *before* calling CAN_MERGE()	270	* Check nrof variable *before* calling can_merge()
191	*	271	*
192	* Improvements made with merge: Better checking on potion, and also	272	* Improvements made with merge: Better checking on potion, and also
193	* check weight	273	* check weight
194	*/	274	*/
195
196	bool object::can_merge (object *ob1, object *ob2)	275	bool object::can_merge_slow (object *ob1, object *ob2)
197	{	276	{
198	/* A couple quicksanity checks */	277	/* A couple quick sanity checks */
199	if ((ob1 == ob2) || (ob1->type != ob2->type))	278	if (ob1 == ob2
		279	|| ob1->type != ob2->type
		280	|| ob1->value != ob2->value
		281	|| ob1->name != ob2->name
		282	|| fabs (ob1->speed - ob2->speed) >= MIN_ACTIVE_SPEED)
200	return 0;	283	return 0;
201		284
202	if (ob1->speed != ob2->speed)	285	/* Do not merge objects if nrof would overflow, assume nrof
		286	* is always 0 .. 2**31-1 */
		287	if (ob1->nrof > 0x7fffffff - ob2->nrof)
203	return 0;	288	return 0;
204		289
205	/* Do not merge objects if nrof would overflow. We use 1UL<<31 since that
206	* value could not be stored in a sint32 (which unfortunately sometimes is
207	* used to store nrof).
208	*/
209	if (ob1->nrof + ob2->nrof >= 1UL << 31)
210	return 0;
211
212	/* If the objects have been identified, set the BEEN_APPLIED flag.	290	/* If the objects have been identified, set the BEEN_APPLIED flag.
213	* This is to the comparison of the flags below will be OK. We	291	* This is to the comparison of the flags below will be OK. We
214	* just can't ignore the been applied or identified flags, as they	292	* just can't ignore the been applied or identified flags, as they
215	* are not equal - just if it has been identified, the been_applied	293	* are not equal - just if it has been identified, the been_applied
216	* flags lose any meaning.	294	* flags lose any meaning.
217	*/	295	*/
218	if (QUERY_FLAG (ob1, FLAG_IDENTIFIED))	296	if (ob1->flag [FLAG_IDENTIFIED])
219	SET_FLAG (ob1, FLAG_BEEN_APPLIED);	297	ob1->set_flag (FLAG_BEEN_APPLIED);
220		298
221	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))	299	if (ob2->flag [FLAG_IDENTIFIED])
222	SET_FLAG (ob2, FLAG_BEEN_APPLIED);	300	ob2->set_flag (FLAG_BEEN_APPLIED);
223		301
224		302	if (ob1->arch->archname != ob2->arch->archname
225	/* the 0x400000 on flags2 is FLAG_INV_LOCK. I don't think something
226	* being locked in inventory should prevent merging.
227	* 0x4 in flags3 is CLIENT_SENT
228	*/
229	if ((ob1->arch != ob2->arch) ||
230	(ob1->flags[0] != ob2->flags[0]) ||
231	(ob1->flags[1] != ob2->flags[1]) ||
232	((ob1->flags[2] & ~0x400000) != (ob2->flags[2] & ~0x400000)) ||
233	((ob1->flags[3] & ~0x4) != (ob2->flags[3] & ~0x4)) ||
234	(ob1->name != ob2->name) ||	303	|| ob1->name != ob2->name
235	(ob1->title != ob2->title) ||	304	|| ob1->title != ob2->title
236	(ob1->msg != ob2->msg) ||	305	|| ob1->msg != ob2->msg
237	(ob1->weight != ob2->weight) ||	306	|| ob1->weight != ob2->weight
238	(memcmp (&ob1->resist, &ob2->resist, sizeof (ob1->resist)) != 0) ||
239	(memcmp (&ob1->stats, &ob2->stats, sizeof (ob1->stats)) != 0) ||
240	(ob1->attacktype != ob2->attacktype) ||	307	|| ob1->attacktype != ob2->attacktype
241	(ob1->magic != ob2->magic) ||	308	|| ob1->magic != ob2->magic
242	(ob1->slaying != ob2->slaying) ||	309	|| ob1->slaying != ob2->slaying
243	(ob1->skill != ob2->skill) ||	310	|| ob1->skill != ob2->skill
244	(ob1->value != ob2->value) ||	311	|| ob1->value != ob2->value
245	(ob1->animation_id != ob2->animation_id) ||	312	|| ob1->animation_id != ob2->animation_id
		313	|| (ob1->face != ob2->face && !ob1->animation_id) // face and animation are dependend on each other
246	(ob1->client_type != ob2->client_type) ||	314	|| ob1->client_type != ob2->client_type
247	(ob1->materialname != ob2->materialname) ||	315	|| ob1->material != ob2->material
248	(ob1->lore != ob2->lore) ||	316	|| ob1->lore != ob2->lore
249	(ob1->subtype != ob2->subtype) ||	317	|| ob1->subtype != ob2->subtype
250	(ob1->move_type != ob2->move_type) ||	318	|| ob1->move_type != ob2->move_type
251	(ob1->move_block != ob2->move_block) ||	319	|| ob1->move_block != ob2->move_block
252	(ob1->move_allow != ob2->move_allow) ||	320	|| ob1->move_allow != ob2->move_allow
253	(ob1->move_on != ob2->move_on) ||	321	|| ob1->move_on != ob2->move_on
254	(ob1->move_off != ob2->move_off) || (ob1->move_slow != ob2->move_slow) || (ob1->move_slow_penalty != ob2->move_slow_penalty))	322	|| ob1->move_off != ob2->move_off
		323	|| ob1->move_slow != ob2->move_slow
		324	|| fabs (ob1->move_slow_penalty - ob2->move_slow_penalty) >= (1.f / 1024.f)
		325	|| memcmp (&ob1->resist, &ob2->resist, sizeof (ob1->resist))
		326	|| memcmp (&ob1->stats , &ob2->stats , sizeof (ob1->stats)))
255	return 0;	327	return 0;
256		328
		329	if ((ob1->flag ^ ob2->flag)
		330	.reset (FLAG_INV_LOCKED)
		331	.reset (FLAG_REMOVED)
		332	.any ())
		333	return 0;
		334
257	/* This is really a spellbook check - really, we should	335	/* This is really a spellbook check - we should in general
258	* check all objects in the inventory.	336	* not merge objects with real inventories, as splitting them
		337	* is hard.
259	*/	338	*/
260	if (ob1->inv || ob2->inv)	339	if (ob1->inv || ob2->inv)
261	{	340	{
262	/* if one object has inventory but the other doesn't, not equiv */
263	if ((ob1->inv && !ob2->inv) || (ob2->inv && !ob1->inv))
264	return 0;
265
266	/* Now check to see if the two inventory objects could merge */
267	if (!CAN_MERGE (ob1->inv, ob2->inv))	341	if (!(ob1->inv && ob2->inv))
268	return 0;	342	return 0; /* inventories differ in length */
		343
		344	if (ob1->inv->below || ob2->inv->below)
		345	return 0; /* more than one object in inv */
		346
		347	if (!object::can_merge (ob1->inv, ob2->inv))
		348	return 0; /* inventory objects differ */
269		349
270	/* inventory ok - still need to check rest of this object to see	350	/* inventory ok - still need to check rest of this object to see
271	* if it is valid.	351	* if it is valid.
272	*/	352	*/
273	}	353	}
274		354
275	/* Don't merge objects that are applied. With the new 'body' code,	355	/* Don't merge objects that are applied. With the new 'body' code,
276	* it is possible for most any character to have more than one of	356	* it is possible for most any character to have more than one of
277	* some items equipped, and we don't want those to merge.	357	* some items equipped, and we don't want those to merge.
278	*/	358	*/
279	if (QUERY_FLAG (ob1, FLAG_APPLIED) || QUERY_FLAG (ob2, FLAG_APPLIED))	359	if (ob1->flag [FLAG_APPLIED] || ob2->flag [FLAG_APPLIED])
280	return 0;	360	return 0;
281		361
282	/* Note sure why the following is the case - either the object has to	362	/* Note sure why the following is the case - either the object has to
283	* be animated or have a very low speed. Is this an attempted monster	363	* be animated or have a very low speed. Is this an attempted monster
284	* check?	364	* check?
285	*/	365	*/
286	if (!QUERY_FLAG (ob1, FLAG_ANIMATE) && FABS ((ob1)->speed) > MIN_ACTIVE_SPEED)	366	if (!ob1->flag [FLAG_ANIMATE] && ob1->has_active_speed ())
287	return 0;	367	return 0;
288		368
289	switch (ob1->type)	369	switch (ob1->type)
290	{	370	{
291	case SCROLL:	371	case SCROLL:
292	if (ob1->level != ob2->level)	372	if (ob1->level != ob2->level)
293	return 0;	373	return 0;
294	break;	374	break;
295	}	375	}
296		376
297	if (ob1->key_values != NULL || ob2->key_values != NULL)	377	if (ob1->key_values || ob2->key_values)
298	{	378	{
299	/* At least one of these has key_values. */	379	/* At least one of these has key_values. */
300	if ((ob1->key_values == NULL) != (ob2->key_values == NULL))	380	if ((!ob1->key_values) != (!ob2->key_values))
301	/* One has fields, but the other one doesn't. */	381	return 0; /* One has fields, but the other one doesn't. */
		382
		383	if (!compare_ob_value_lists (ob1, ob2))
302	return 0;	384	return 0;
303	else if (!compare_ob_value_lists (ob1, ob2))
304	return 0;
305	}	385	}
306		386
307	//TODO: generate an event or call into perl for additional checks
308	if (ob1->self || ob2->self)	387	if (ob1->self || ob2->self)
309	{	388	{
310	ob1->optimise ();	389	ob1->optimise ();
311	ob2->optimise ();	390	ob2->optimise ();
312		391
313	if (ob1->self || ob2->self)	392	if (ob1->self || ob2->self)
		393	{
		394	int k1 = ob1->self ? HvTOTALKEYS (ob1->self) : 0;
		395	int k2 = ob2->self ? HvTOTALKEYS (ob2->self) : 0;
		396
		397	if (k1 != k2)
314	return 0;	398	return 0;
		399
		400	if (k1 == 0)
		401	return 1;
		402
		403	if (!cfperl_can_merge (ob1, ob2))
		404	return 0;
		405	}
315	}	406	}
316		407
317	/* Everything passes, must be OK. */	408	/* Everything passes, must be OK. */
318	return 1;	409	return 1;
319	}	410	}
320		411
		412	// find player who can see this object
		413	object *
		414	object::visible_to () const
		415	{
		416	if (client_visible () && !flag [FLAG_REMOVED])
		417	{
		418	// see if we are in a container of sorts
		419	if (env)
		420	{
		421	// the player inventory itself is always visible
		422	if (env->is_player ())
		423	return env;
		424
		425	// else a player could have our env open
		426	object *envest = env->outer_env_or_self ();
		427
		428	// the player itself is always on a map, so we will find him here
		429	// even if our inv is in a player.
		430	if (envest->is_on_map ())
		431	if (object *pl = envest->ms ().player ())
		432	if (pl->container_ () == env)
		433	return pl;
		434	}
		435	else
		436	{
		437	// maybe there is a player standing on the same mapspace
		438	// this will catch the case where "this" is a player
		439	if (object *pl = ms ().player ())
		440	if ((pl->contr->ns && !pl->container_ () && !pl->contr->ns->update_look)
		441	|| pl->container_ () == this)
		442	return pl;
		443	}
		444	}
		445
		446	return 0;
		447	}
		448
		449	// adjust weight per container type ("of holding")
		450	static uint32
		451	weight_adjust_for (object *op, uint32 weight)
		452	{
		453	return op->type == CONTAINER
		454	? weight - weight * op->stats.Str / 100
		455	: weight;
		456	}
		457
321	/*	458	/*
		459	* subtracts, then adds, the specified weight to an object,
		460	* and also updates how much the environment(s) is/are carrying.
		461	*/
		462	static void
		463	adjust_weight (object *op, sint32 sub, sint32 add)
		464	{
		465	while (op)
		466	{
		467	sint32 ocarrying = op->carrying;
		468
		469	op->carrying -= weight_adjust_for (op, sub);
		470	op->carrying += weight_adjust_for (op, add);
		471
		472	if (object *pl = op->visible_to ())
		473	if (pl != op) // player is handled lazily
		474	esrv_update_item (UPD_WEIGHT, pl, op);
		475
		476	sub = ocarrying;
		477	add = op->carrying;
		478
		479	op = op->env;
		480	}
		481	}
		482
		483	/*
322	* sum_weight() is a recursive function which calculates the weight	484	* this is a recursive function which calculates the weight
323	* an object is carrying. It goes through in figures out how much	485	* an object is carrying. It goes through op and figures out how much
324	* containers are carrying, and sums it up.	486	* containers are carrying, and sums it up.
325	*/	487	*/
326	long	488	void
327	sum_weight (object *op)	489	object::update_weight ()
328	{	490	{
329	long sum;	491	sint32 sum = 0;
330	object *inv;
331		492
332	for (sum = 0, inv = op->inv; inv != NULL; inv = inv->below)	493	for (object *op = inv; op; op = op->below)
333	{
334	if (inv->inv)
335	sum_weight (inv);
336	sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1);
337	}	494	{
		495	op->update_weight ();
338		496
339	if (op->type == CONTAINER && op->stats.Str)	497	sum += weight_adjust_for (this, op->total_weight ());
340	sum = (sum * (100 - op->stats.Str)) / 100;	498	}
341		499
342	if (op->carrying != sum)	500	if (sum != carrying)
		501	{
		502	if (carrying != sum && carrying)//D
		503	LOG (llevDebug, "updating carrying got %ld, expected %ld (%s)\n",
		504	(long long)sum, (long long)carrying, debug_desc ());
		505
343	op->carrying = sum;	506	carrying = sum;
344		507
345	return sum;	508	if (object *pl = visible_to ())
346	}	509	if (pl != this) // player is handled lazily
347		510	esrv_update_item (UPD_WEIGHT, pl, this);
348	/**
349	* Return the outermost environment object for a given object.
350	*/
351
352	object *
353	object_get_env_recursive (object *op)
354	{
355	while (op->env != NULL)
356	op = op->env;
357	return op;
358	}
359
360	/*
361	* Eneq(@csd.uu.se): Since we can have items buried in a character we need
362	* a better check. We basically keeping traversing up until we can't
363	* or find a player.
364	*/
365
366	object *
367	is_player_inv (object *op)
368	{
369	for (; op != NULL && op->type != PLAYER; op = op->env)
370	if (op->env == op)
371	op->env = NULL;
372	return op;
373	}
374
375	/*
376	* Used by: Crossedit: dump. Server DM commands: dumpbelow, dump.
377	* Some error messages.
378	* The result of the dump is stored in the static global errmsg array.
379	*/
380
381	void
382	dump_object2 (object *op)
383	{
384	errmsg[0] = 0;
385	return;
386	//TODO//D#d#
387	#if 0
388	char *cp;
389
390	/* object *tmp;*/
391
392	if (op->arch != NULL)
393	{	511	}
394	strcat (errmsg, "arch ");
395	strcat (errmsg, op->arch->name ? op->arch->name : "(null)");
396	strcat (errmsg, "\n");
397	if ((cp = get_ob_diff (op, &empty_archetype->clone)) != NULL)
398	strcat (errmsg, cp);
399	# if 0
400	/* Don't dump player diffs - they are too long, mostly meaningless, and
401	* will overflow the buffer.
402	* Changed so that we don't dump inventory either. This may
403	* also overflow the buffer.
404	*/
405	if (op->type != PLAYER && (cp = get_ob_diff (op, &empty_archetype->clone)) != NULL)
406	strcat (errmsg, cp);
407	for (tmp = op->inv; tmp; tmp = tmp->below)
408	dump_object2 (tmp);
409	# endif
410	strcat (errmsg, "end\n");
411	}
412	else
413	{
414	strcat (errmsg, "Object ");
415	if (op->name == NULL)
416	strcat (errmsg, "(null)");
417	else
418	strcat (errmsg, op->name);
419	strcat (errmsg, "\n");
420	# if 0
421	if ((cp = get_ob_diff (op, &empty_archetype->clone)) != NULL)
422	strcat (errmsg, cp);
423	for (tmp = op->inv; tmp; tmp = tmp->below)
424	dump_object2 (tmp);
425	# endif
426	strcat (errmsg, "end\n");
427	}
428	#endif
429	}	512	}
430		513
431	/*	514	/*
432	* Dumps an object. Returns output in the static global errmsg array.	515	* Used by: Server DM commands: dumpbelow, dump. Some error messages.
433	*/	516	*/
434		517	char *
435	void
436	dump_object (object *op)	518	dump_object (object *op)
437	{	519	{
438	if (op == NULL)	520	if (!op)
439	{	521	return strdup ("[NULLOBJ]");
440	strcpy (errmsg, "[NULL pointer]");
441	return;
442	}
443	errmsg[0] = '\0';
444	dump_object2 (op);
445	}
446		522
447	void	523	object_freezer freezer;
448	dump_all_objects (void)	524	op->write (freezer);
449	{	525	return freezer.as_string ();
450	object *op;
451
452	for (op = objects; op != NULL; op = op->next)
453	{
454	dump_object (op);
455	fprintf (logfile, "Object %d\n:%s\n", op->count, errmsg);
456	}
457	}	526	}
458		527
459	/*	528	char *
460	* get_nearest_part(multi-object, object 2) returns the part of the	529	object::as_string ()
461	* multi-object 1 which is closest to the second object.
462	* If it's not a multi-object, it is returned.
463	*/
464
465	object *
466	get_nearest_part (object *op, const object *pl)
467	{	530	{
468	object *tmp, *closest;	531	return dump_object (this);
469	int last_dist, i;
470
471	if (op->more == NULL)
472	return op;
473	for (last_dist = distance (op, pl), closest = op, tmp = op->more; tmp != NULL; tmp = tmp->more)
474	if ((i = distance (tmp, pl)) < last_dist)
475	closest = tmp, last_dist = i;
476	return closest;
477	}	532	}
478		533
479	/*	534	/*
480	* Returns the object which has the count-variable equal to the argument.	535	* Returns the object which has the count-variable equal to the argument.
		536	* VERRRY slow.
481	*/	537	*/
482
483	object *	538	object *
484	find_object (tag_t i)	539	find_object (tag_t i)
485	{	540	{
486	object *op;	541	for_all_objects (op)
487
488	for (op = objects; op != NULL; op = op->next)
489	if (op->count == i)	542	if (op->count == i)
490	break;
491	return op;	543	return op;
		544
		545	return 0;
		546	}
		547
		548	/*
		549	* Returns the object which has the uuid equal to the argument.
		550	* MOAR VERRRY slow.
		551	*/
		552
		553	object *
		554	find_object_uuid (UUID i)
		555	{
		556	for_all_objects (op)
		557	if (op->uuid == i)
		558	return op;
		559
		560	return 0;
492	}	561	}
493		562
494	/*	563	/*
495	* Returns the first object which has a name equal to the argument.	564	* Returns the first object which has a name equal to the argument.
496	* Used only by the patch command, but not all that useful.	565	* Used only by the patch command, but not all that useful.
497	* Enables features like "patch <name-of-other-player> food 999"	566	* Enables features like "patch <name-of-other-player> food 999"
498	*/	567	*/
499
500	object *	568	object *
501	find_object_name (const char *str)	569	find_object_name (const char *str)
502	{	570	{
503	shstr_cmp str_ (str);	571	shstr_cmp str_ (str);
504	object *op;
505		572
506	for (op = objects; op != NULL; op = op->next)	573	if (str_)
		574	for_all_objects (op)
507	if (op->name == str_)	575	if (op->name == str_)
508	break;	576	return op;
509		577
510	return op;	578	return 0;
511	}
512
513	void
514	free_all_object_data ()
515	{
516	LOG (llevDebug, "%d allocated objects\n", nrofallocobjects);
517	}
518
519	/*
520	* Returns the object which this object marks as being the owner.
521	* A id-scheme is used to avoid pointing to objects which have been
522	* freed and are now reused. If this is detected, the owner is
523	* set to NULL, and NULL is returned.
524	* Changed 2004-02-12 - if the player is setting at the play again
525	* prompt, he is removed, and we don't want to treat him as an owner of
526	* anything, so check removed flag. I don't expect that this should break
527	* anything - once an object is removed, it is basically dead anyways.
528	*/
529	object *
530	object::get_owner ()
531	{
532	if (!owner
533	|| QUERY_FLAG (owner, FLAG_FREED)
534	|| QUERY_FLAG (owner, FLAG_REMOVED))
535	owner = 0;
536
537	return owner;
538	}	579	}
539		580
540	/*	581	/*
541	* Sets the owner and sets the skill and exp pointers to owner's current	582	* Sets the owner and sets the skill and exp pointers to owner's current
542	* skill and experience objects.	583	* skill and experience objects.
		584	* ACTUALLY NO! investigate! TODO
543	*/	585	*/
544	void	586	void
545	object::set_owner (object *owner)	587	object::set_owner (object *owner)
546	{	588	{
		589	// allow objects which own objects
547	if (!owner)	590	if (owner)
548	return;
549
550	/* next line added to allow objects which own objects */
551	/* Add a check for ownercounts in here, as I got into an endless loop
552	* with the fireball owning a poison cloud which then owned the
553	* fireball. I believe that was caused by one of the objects getting
554	* freed and then another object replacing it. Since the ownercounts
555	* didn't match, this check is valid and I believe that cause is valid.
556	*/
557	while (owner->owner)	591	while (owner->owner)
558	owner = owner->owner;	592	owner = owner->owner;
		593
		594	if (flag [FLAG_FREED])
		595	{
		596	LOG (llevError | logBacktrace, "tried to set owner of %s to %s\n", debug_desc (), owner->debug_desc ());
		597	return;
		598	}
559		599
560	this->owner = owner;	600	this->owner = owner;
561	}	601	}
562		602
563	/* Zero the key_values on op, decrementing the shared-string	603	/* Zero the key_values on op, decrementing the shared-string
564	* refcounts and freeing the links.	604	* refcounts and freeing the links.
565	*/	605	*/
566	static void	606	static void
567	free_key_values (object *op)	607	free_key_values (object *op)
568	{	608	{
569	for (key_value *i = op->key_values; i != 0;)	609	for (key_value *i = op->key_values; i; )
570	{	610	{
571	key_value *next = i->next;	611	key_value *next = i->next;
572	delete i;	612	delete i;
573		613
574	i = next;	614	i = next;
575	}	615	}
576		616
577	op->key_values = 0;	617	op->key_values = 0;
578	}	618	}
579		619
580	void object::clear ()
581	{
582	attachable_base::clear ();
583
584	free_key_values (this);
585
586	owner = 0;
587	name = 0;
588	name_pl = 0;
589	title = 0;
590	race = 0;
591	slaying = 0;
592	skill = 0;
593	msg = 0;
594	lore = 0;
595	custom_name = 0;
596	materialname = 0;
597	contr = 0;
598	below = 0;
599	above = 0;
600	inv = 0;
601	container = 0;
602	env = 0;
603	more = 0;
604	head = 0;
605	map = 0;
606	active_next = 0;
607	active_prev = 0;
608
609	memset (static_cast<object_pod *>(this), 0, sizeof (object_pod));
610
611	SET_FLAG (this, FLAG_REMOVED);
612
613	/* What is not cleared is next, prev, and count */
614
615	expmul = 1.0;
616	face = blank_face;
617	attacked_by_count = -1;
618
619	if (settings.casting_time)
620	casting_time = -1;
621	}
622
623	void object::clone (object *destination)
624	{
625	*(object_copy *)destination = *this;
626	*(object_pod *)destination = *this;
627
628	if (self || cb)
629	INVOKE_OBJECT (CLONE, this, ARG_OBJECT (destination));
630	}
631
632	/*	620	/*
633	* copy object first frees everything allocated by the second object,	621	* copy_to first frees everything allocated by the dst object,
634	* and then copies the contends of the first object into the second	622	* and then copies the contents of itself into the second
635	* object, allocating what needs to be allocated. Basically, any	623	* object, allocating what needs to be allocated. Basically, any
636	* data that is malloc'd needs to be re-malloc/copied. Otherwise,	624	* data that is malloc'd needs to be re-malloc/copied. Otherwise,
637	* if the first object is freed, the pointers in the new object	625	* if the first object is freed, the pointers in the new object
638	* will point at garbage.	626	* will point at garbage.
639	*/	627	*/
640	void	628	void
641	copy_object (object *op2, object *op)	629	object::copy_to (object *dst)
642	{	630	{
643	bool is_freed = QUERY_FLAG (op, FLAG_FREED);	631	dst->remove ();
644	bool is_removed = QUERY_FLAG (op, FLAG_REMOVED);	632	*(object_copy *)dst = *this;
645		633	dst->flag [FLAG_REMOVED] = true;
646	op2->clone (op);
647
648	if (is_freed)
649	SET_FLAG (op, FLAG_FREED);
650	if (is_removed)
651	SET_FLAG (op, FLAG_REMOVED);
652
653	if (op2->speed < 0)
654	op->speed_left = op2->speed_left - RANDOM () % 200 / 100.0;
655		634
656	/* Copy over key_values, if any. */	635	/* Copy over key_values, if any. */
657	if (op2->key_values)	636	if (key_values)
658	{	637	{
659	key_value *tail = 0;	638	key_value *tail = 0;
660	key_value *i;
661
662	op->key_values = 0;	639	dst->key_values = 0;
663		640
664	for (i = op2->key_values; i; i = i->next)	641	for (key_value *i = key_values; i; i = i->next)
665	{	642	{
666	key_value *new_link = new key_value;	643	key_value *new_link = new key_value;
667		644
668	new_link->next = 0;	645	new_link->next = 0;
669	new_link->key = i->key;	646	new_link->key = i->key;
670	new_link->value = i->value;	647	new_link->value = i->value;
671		648
672	/* Try and be clever here, too. */	649	/* Try and be clever here, too. */
673	if (!op->key_values)	650	if (!dst->key_values)
674	{	651	{
675	op->key_values = new_link;	652	dst->key_values = new_link;
676	tail = new_link;	653	tail = new_link;
677	}	654	}
678	else	655	else
679	{	656	{
680	tail->next = new_link;	657	tail->next = new_link;
681	tail = new_link;	658	tail = new_link;
682	}	659	}
683	}	660	}
684	}	661	}
685		662
686	update_ob_speed (op);	663	dst->activate ();
		664	}
		665
		666	void
		667	object::instantiate ()
		668	{
		669	if (!uuid.seq) // HACK
		670	uuid = UUID::gen ();
		671
		672	// TODO: unclean state changes, should nt be done in copy_to AND instantiate
		673	if (flag [FLAG_RANDOM_SPEED] && speed)
		674	speed_left = - speed - rndm (); // TODO animation
		675	else
		676	speed_left = -1.;
		677
		678	/* copy the body_info to the body_used - this is only really
		679	* need for monsters, but doesn't hurt to do it for everything.
		680	* by doing so, when a monster is created, it has good starting
		681	* values for the body_used info, so when items are created
		682	* for it, they can be properly equipped.
		683	*/
		684	for (int i = NUM_BODY_LOCATIONS; i--; )
		685	slot[i].used = slot[i].info;
		686
		687	attachable::instantiate ();
		688	}
		689
		690	object *
		691	object::clone ()
		692	{
		693	object *neu = create ();
		694	copy_to (neu);
		695
		696	// TODO: unclean state changes, should not be done in clone AND instantiate
		697	if (neu->flag [FLAG_RANDOM_SPEED] && neu->speed)
		698	neu->speed_left = - neu->speed - rndm (); // TODO animation
		699
		700	neu->map = map; // not copied by copy_to
		701	return neu;
687	}	702	}
688		703
689	/*	704	/*
690	* If an object with the IS_TURNABLE() flag needs to be turned due	705	* If an object with the IS_TURNABLE() flag needs to be turned due
691	* to the closest player being on the other side, this function can	706	* to the closest player being on the other side, this function can
692	* be called to update the face variable, _and_ how it looks on the map.	707	* be called to update the face variable, _and_ how it looks on the map.
693	*/	708	*/
694
695	void	709	void
696	update_turn_face (object *op)	710	update_turn_face (object *op)
697	{	711	{
698	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || op->arch == NULL)	712	if (!op->flag [FLAG_IS_TURNABLE] || !op->arch)
699	return;	713	return;
		714
700	SET_ANIMATION (op, op->direction);	715	SET_ANIMATION (op, op->direction);
701	update_object (op, UP_OBJ_FACE);	716	update_object (op, UP_OBJ_FACE);
702	}	717	}
703		718
704	/*	719	/*
705	* Updates the speed of an object. If the speed changes from 0 to another	720	* Updates the speed of an object. If the speed changes from 0 to another
706	* value, or vice versa, then add/remove the object from the active list.	721	* value, or vice versa, then add/remove the object from the active list.
707	* This function needs to be called whenever the speed of an object changes.	722	* This function needs to be called whenever the speed of an object changes.
708	*/	723	*/
709	void	724	void
710	update_ob_speed (object *op)	725	object::set_speed (float speed)
711	{	726	{
712	extern int arch_init;	727	this->speed = speed;
713		728
714	/* No reason putting the archetypes objects on the speed list,	729	if (has_active_speed ())
715	* since they never really need to be updated.	730	activate ();
716	*/
717
718	if (QUERY_FLAG (op, FLAG_FREED) && op->speed)
719	{
720	LOG (llevError, "Object %s is freed but has speed.\n", &op->name);
721	#ifdef MANY_CORES
722	abort ();
723	#else
724	op->speed = 0;
725	#endif
726	}
727
728	if (arch_init)
729	return;
730
731	if (FABS (op->speed) > MIN_ACTIVE_SPEED)
732	{
733	/* If already on active list, don't do anything */
734	if (op->active_next || op->active_prev || op == active_objects)
735	return;
736
737	/* process_events() expects us to insert the object at the beginning
738	* of the list. */
739	op->active_next = active_objects;
740
741	if (op->active_next != NULL)
742	op->active_next->active_prev = op;
743
744	active_objects = op;
745	}
746	else	731	else
747	{	732	deactivate ();
748	/* If not on the active list, nothing needs to be done */
749	if (!op->active_next && !op->active_prev && op != active_objects)
750	return;
751
752	if (op->active_prev == NULL)
753	{
754	active_objects = op->active_next;
755
756	if (op->active_next != NULL)
757	op->active_next->active_prev = NULL;
758	}
759	else
760	{
761	op->active_prev->active_next = op->active_next;
762
763	if (op->active_next)
764	op->active_next->active_prev = op->active_prev;
765	}
766
767	op->active_next = NULL;
768	op->active_prev = NULL;
769	}
770	}	733	}
771		734
772	/* This function removes object 'op' from the list of active
773	* objects.
774	* This should only be used for style maps or other such
775	* reference maps where you don't want an object that isn't
776	* in play chewing up cpu time getting processed.
777	* The reverse of this is to call update_ob_speed, which
778	* will do the right thing based on the speed of the object.
779	*/
780	void
781	remove_from_active_list (object *op)
782	{
783	/* If not on the active list, nothing needs to be done */
784	if (!op->active_next && !op->active_prev && op != active_objects)
785	return;
786
787	if (op->active_prev == NULL)
788	{
789	active_objects = op->active_next;
790	if (op->active_next != NULL)
791	op->active_next->active_prev = NULL;
792	}
793	else
794	{
795	op->active_prev->active_next = op->active_next;
796	if (op->active_next)
797	op->active_next->active_prev = op->active_prev;
798	}
799	op->active_next = NULL;
800	op->active_prev = NULL;
801	}
802
803	/*	735	/*
804	* update_object() updates the array which represents the map.	736	* update_object() updates the the map.
805	* It takes into account invisible objects (and represent squares covered	737	* It takes into account invisible objects (and represent squares covered
806	* by invisible objects by whatever is below them (unless it's another	738	* by invisible objects by whatever is below them (unless it's another
807	* invisible object, etc...)	739	* invisible object, etc...)
808	* If the object being updated is beneath a player, the look-window	740	* If the object being updated is beneath a player, the look-window
809	* of that player is updated (this might be a suboptimal way of	741	* of that player is updated (this might be a suboptimal way of
810	* updating that window, though, since update_object() is called _often_)	742	* updating that window, though, since update_object() is called _often_)
811	*	743	*
812	* action is a hint of what the caller believes need to be done.	744	* action is a hint of what the caller believes need to be done.
813	* For example, if the only thing that has changed is the face (due to
814	* an animation), we don't need to call update_position until that actually
815	* comes into view of a player. OTOH, many other things, like addition/removal
816	* of walls or living creatures may need us to update the flags now.
817	* current action are:	745	* current action are:
818	* UP_OBJ_INSERT: op was inserted	746	* UP_OBJ_INSERT: op was inserted
819	* UP_OBJ_REMOVE: op was removed	747	* UP_OBJ_REMOVE: op was removed
820	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update	748	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update
821	* as that is easier than trying to look at what may have changed.	749	* as that is easier than trying to look at what may have changed.
822	* UP_OBJ_FACE: only the objects face has changed.	750	* UP_OBJ_FACE: only the objects face has changed.
823	*/	751	*/
824
825	void	752	void
826	update_object (object *op, int action)	753	update_object (object *op, int action)
827	{	754	{
828	int update_now = 0, flags;	755	if (!op)
829	MoveType move_on, move_off, move_block, move_slow;
830
831	if (op == NULL)
832	{	756	{
833	/* this should never happen */	757	/* this should never happen */
834	LOG (llevDebug, "update_object() called for NULL object.\n");	758	LOG (llevError | logBacktrace, "update_object() called for NULL object.\n");
835	return;	759	return;
836	}	760	}
837		761
838	if (op->env != NULL)	762	if (!op->is_on_map ())
839	{	763	{
840	/* Animation is currently handled by client, so nothing	764	/* Animation is currently handled by client, so nothing
841	* to do in this case.	765	* to do in this case.
842	*/	766	*/
843	return;	767	return;
844	}	768	}
845		769
846	/* If the map is saving, don't do anything as everything is
847	* going to get freed anyways.
848	*/
849	if (!op->map || op->map->in_memory == MAP_SAVING)
850	return;
851
852	/* make sure the object is within map boundaries */	770	/* make sure the object is within map boundaries */
853	if (op->x < 0 || op->x >= MAP_WIDTH (op->map) || op->y < 0 || op->y >= MAP_HEIGHT (op->map))	771	if (op->x < 0 || op->x >= op->map->width || op->y < 0 || op->y >= op->map->height)
854	{	772	{
855	LOG (llevError, "update_object() called for object out of map!\n");	773	LOG (llevError, "update_object() called for object out of map!\n");
856	#ifdef MANY_CORES	774	#ifdef MANY_CORES
857	abort ();	775	abort ();
858	#endif	776	#endif
859	return;	777	return;
860	}	778	}
861		779
862	flags = GET_MAP_FLAGS (op->map, op->x, op->y);	780	mapspace &m = op->ms ();
863	SET_MAP_FLAGS (op->map, op->x, op->y, flags | P_NEED_UPDATE);
864	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);
865	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);
866	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);
867	move_off = GET_MAP_MOVE_OFF (op->map, op->x, op->y);
868		781
		782	if (!(m.flags_ & P_UPTODATE))
		783	/* nop */;
869	if (action == UP_OBJ_INSERT)	784	else if (action == UP_OBJ_INSERT)
870	{	785	{
		786	#if 0
		787	// this is likely overkill, TODO: revisit (schmorp)
871	if (QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(flags & P_BLOCKSVIEW))	788	if ((op->flag [FLAG_BLOCKSVIEW] && !(m.flags_ & P_BLOCKSVIEW))
872	update_now = 1;	789	|| (op->flag [FLAG_NO_MAGIC] && !(m.flags_ & P_NO_MAGIC))
873		790	|| (op->is_player () && !(m.flags_ & P_PLAYER))
874	if (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(flags & P_NO_MAGIC))
875	update_now = 1;
876
877	if (QUERY_FLAG (op, FLAG_DAMNED) && !(flags & P_NO_CLERIC))
878	update_now = 1;
879
880	if (QUERY_FLAG (op, FLAG_ALIVE) && !(flags & P_IS_ALIVE))
881	update_now = 1;
882
883	if (op->type == SAFE_GROUND && !(flags & P_SAFE))	791	|| (op->type == SAFE_GROUND && !(m.flags_ & P_SAFE))
884	update_now = 1;	792	|| (op->flag [FLAG_ALIVE] && !(m.flags_ & P_IS_ALIVE))
885		793	|| (op->flag [FLAG_DAMNED] && !(m.flags_ & P_NO_CLERIC))
886	if ((move_on | op->move_on) != move_on)	794	|| (m.move_on | op->move_on ) != m.move_on
887	update_now = 1;
888
889	if ((move_off | op->move_off) != move_off)	795	|| (m.move_off | op->move_off ) != m.move_off
890	update_now = 1;	796	|| (m.move_slow | op->move_slow) != m.move_slow
891
892	/* This isn't perfect, but I don't expect a lot of objects to	797	/* This isn't perfect, but I don't expect a lot of objects to
893	* to have move_allow right now.	798	* have move_allow right now.
894	*/	799	*/
895	if (((move_block | op->move_block) & ~op->move_allow) != move_block)	800	|| ((m.move_block | op->move_block) & ~op->move_allow) != m.move_block
896	update_now = 1;	801	m.invalidate ();
897		802	#else
898	if ((move_slow | op->move_slow) != move_slow)	803	// the above is not strong enough a test to skip updating. los maybe? TODO (schmorp)
899	update_now = 1;	804	m.invalidate ();
		805	#endif
900	}	806	}
901	/* if the object is being removed, we can't make intelligent	807	/* if the object is being removed, we can't make intelligent
902	* decisions, because remove_ob can't really pass the object	808	* decisions, because remove_ob can't really pass the object
903	* that is being removed.	809	* that is being removed.
904	*/	810	*/
905	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)	811	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)
906	update_now = 1;	812	m.invalidate ();
907	else if (action == UP_OBJ_FACE)	813	else if (action == UP_OBJ_FACE)
908	/* Nothing to do for that case */ ;	814	/* Nothing to do for that case */ ;
909	else	815	else
910	LOG (llevError, "update_object called with invalid action: %d\n", action);	816	LOG (llevError, "update_object called with invalid action: %d\n", action);
911		817
912	if (update_now)
913	{
914	SET_MAP_FLAGS (op->map, op->x, op->y, flags | P_NO_ERROR | P_NEED_UPDATE);
915	update_position (op->map, op->x, op->y);
916	}
917
918	if (op->more != NULL)	818	if (op->more)
919	update_object (op->more, action);	819	update_object (op->more, action);
920	}	820	}
921		821
922	static unordered_vector<object *> mortals;
923
924	void object::free_mortals ()
925	{
926	for (unordered_vector<object *>::iterator i = mortals.begin (); i != mortals.end ();)
927	if ((*i)->refcnt)
928	++i; // further delay freeing
929	else
930	{
931	delete *i;
932	mortals.erase (i);
933	}
934
935	static int lastmortals = 0;//D
936
937	if (mortals.size() != lastmortals)//D
938	{
939	lastmortals = mortals.size ();//D
940	LOG (llevDebug, "%d objects in mortal queue\n", lastmortals);//D
941	}
942	}
943
944	object::object ()	822	object::object ()
945	{	823	{
946	SET_FLAG (this, FLAG_REMOVED);	824	this->set_flag (FLAG_REMOVED);
947		825
948	expmul = 1.0;	826	//expmul = 1.0; declared const for the time being
949	face = blank_face;	827	face = blank_face;
950	attacked_by_count = -1;	828	material = MATERIAL_NULL;
951	}	829	}
952		830
953	object::~object ()	831	object::~object ()
954	{	832	{
		833	unlink ();
		834
955	free_key_values (this);	835	free_key_values (this);
956	}	836	}
957		837
958	void object::link ()	838	void object::link ()
959	{	839	{
960	count = ++ob_count;	840	assert (!index);//D
961	uuid = gen_uuid ();	841	uuid = UUID::gen ();
962		842
963	prev = 0;	843	refcnt_inc ();
964	next = objects;	844	objects.insert (this);
965		845
966	if (objects)	846	++create_count;
967	objects->prev = this;
968		847
969	objects = this;
970	}	848	}
971		849
972	void object::unlink ()	850	void object::unlink ()
973	{	851	{
974	//count = 0;//D	852	if (!index)
975	if (!prev && !next) return;//D
976
977	if (this == objects)
978	objects = next;
979
980	/* Remove this object from the list of used objects */
981	if (prev) prev->next = next;
982	if (next) next->prev = prev;
983
984	prev = 0;
985	next = 0;
986	}
987
988	object *object::create ()
989	{
990	object *op = new object;
991	op->link ();
992	return op;
993	}
994
995	/*
996	* free_object() frees everything allocated by an object, removes
997	* it from the list of used objects, and puts it on the list of
998	* free objects. The IS_FREED() flag is set in the object.
999	* The object must have been removed by remove_ob() first for
1000	* this function to succeed.
1001	*
1002	* If free_inventory is set, free inventory as well. Else drop items in
1003	* inventory to the ground.
1004	*/
1005	void object::free (bool free_inventory)
1006	{
1007	if (QUERY_FLAG (this, FLAG_FREED))
1008	return;	853	return;
1009		854
1010	if (QUERY_FLAG (this, FLAG_FRIENDLY))	855	++destroy_count;
1011	remove_friendly_object (this);
1012		856
1013	if (!QUERY_FLAG (this, FLAG_REMOVED))	857	objects.erase (this);
1014	remove_ob (this);	858	refcnt_dec ();
		859	}
1015		860
1016	SET_FLAG (this, FLAG_FREED);	861	void
		862	object::activate ()
		863	{
		864	/* If already on active list, don't do anything */
		865	if (active)
		866	return;
1017		867
1018	if (more)	868	if (has_active_speed ())
1019	{
1020	more->free (free_inventory);
1021	more = 0;
1022	}	869	{
		870	if (flag [FLAG_FREED])
		871	LOG (llevError | logBacktrace, "BUG: tried to activate freed object %s\n", debug_desc ());//D
1023		872
		873	actives.insert (this);
		874	}
		875	}
		876
		877	void
		878	object::activate_recursive ()
		879	{
		880	activate ();
		881
		882	for (object *op = inv; op; op = op->below)
		883	op->activate_recursive ();
		884	}
		885
		886	/* This function removes object 'op' from the list of active
		887	* objects.
		888	* This should only be used for style maps or other such
		889	* reference maps where you don't want an object that isn't
		890	* in play chewing up cpu time getting processed.
		891	* The reverse of this is to call update_ob_speed, which
		892	* will do the right thing based on the speed of the object.
		893	*/
		894	void
		895	object::deactivate ()
		896	{
		897	/* If not on the active list, nothing needs to be done */
		898	if (!active)
		899	return;
		900
		901	actives.erase (this);
		902	}
		903
		904	void
		905	object::deactivate_recursive ()
		906	{
		907	for (object *op = inv; op; op = op->below)
		908	op->deactivate_recursive ();
		909
		910	deactivate ();
		911	}
		912
		913	void
		914	object::set_flag_inv (int flag, int value)
		915	{
		916	for (object *op = inv; op; op = op->below)
		917	{
		918	op->flag [flag] = value;
		919	op->set_flag_inv (flag, value);
		920	}
		921	}
		922
		923	/*
		924	* Remove and free all objects in the inventory of the given object.
		925	* object.c ?
		926	*/
		927	void
		928	object::destroy_inv (bool drop_to_ground)
		929	{
		930	// need to check first, because the checks below might segfault
		931	// as we might be on an invalid mapspace and crossfire code
		932	// is too buggy to ensure that the inventory is empty.
		933	// corollary: if you create arrows etc. with stuff in its inventory,
		934	// cf will crash below with off-map x and y
1024	if (inv)	935	if (!inv)
1025	{	936	return;
		937
1026	/* Only if the space blocks everything do we not process -	938	/* Only if the space blocks everything do we not process -
1027	* if some form of movement is allowed, let objects	939	* if some form of movement is allowed, let objects
1028	* drop on that space.	940	* drop on that space.
1029	*/	941	*/
1030	if (free_inventory || !map || map->in_memory != MAP_IN_MEMORY || GET_MAP_MOVE_BLOCK (map, x, y) == MOVE_ALL)	942	if (!drop_to_ground
		943	|| !map
		944	|| map->in_memory != MAP_ACTIVE
		945	|| map->no_drop
		946	|| ms ().move_block == MOVE_ALL)
		947	{
		948	while (inv)
		949	inv->destroy ();
		950	}
		951	else
		952	{ /* Put objects in inventory onto this space */
		953	while (inv)
1031	{	954	{
1032	object *op = inv;	955	object *op = inv;
1033		956
1034	while (op)	957	if (op->flag [FLAG_STARTEQUIP]
1035	{	958	|| op->flag [FLAG_NO_DROP]
1036	object *tmp = op->below;	959	|| op->type == RUNE
1037	op->free (free_inventory);	960	|| op->type == TRAP
1038	op = tmp;	961	|| op->flag [FLAG_IS_A_TEMPLATE]
1039	}	962	|| op->flag [FLAG_DESTROY_ON_DEATH])
		963	op->destroy ();
		964	else
		965	map->insert (op, x, y);
1040	}	966	}
1041	else	967	}
1042	{ /* Put objects in inventory onto this space */	968	}
1043	object *op = inv;
1044		969
1045	while (op)	970	/*
1046	{	971	* Remove and free all objects in the inventory of the given object.
1047	object *tmp = op->below;	972	* Unlike destroy_inv, this assumes the *this is destroyed as well
1048		973	* well, so we can (and have to!) take shortcuts.
1049	remove_ob (op);	974	*/
1050		975	void
1051	if (QUERY_FLAG (op, FLAG_STARTEQUIP)	976	object::destroy_inv_fast ()
1052	|| QUERY_FLAG (op, FLAG_NO_DROP) || op->type == RUNE || op->type == TRAP || QUERY_FLAG (op, FLAG_IS_A_TEMPLATE))	977	{
1053	free_object (op);	978	while (object *op = inv)
1054	else
1055	{
1056	op->x = x;
1057	op->y = y;
1058	insert_ob_in_map (op, map, 0, 0); /* Insert in same map as the envir */
1059	}
1060
1061	op = tmp;
1062	}
1063	}
1064	}	979	{
		980	// remove from object the fast way
		981	op->flag [FLAG_REMOVED] = true;
		982	op->env = 0;
		983	if ((inv = inv->below))
		984	inv->above = 0;
1065		985
1066	owner = 0;	986	// then destroy
		987	op->destroy ();
		988	}
		989	}
1067		990
1068	/* Remove object from the active list */	991	void
1069	speed = 0;	992	object::freelist_free (int count)
1070	update_ob_speed (this);	993	{
		994	while (count-- && freelist)
		995	{
		996	freelist_item *next = freelist->next;
		997	// count is being "destroyed"
1071		998
		999	sfree ((char *)freelist, sizeof (object));
		1000
		1001	freelist = next;
		1002	--free_count;
		1003	}
		1004	}
		1005
		1006	object *
		1007	object::create ()
		1008	{
		1009	object *op;
		1010
		1011	if (freelist)
		1012	{
		1013	freelist_item li = *freelist;
		1014	memset (freelist, 0, sizeof (object));
		1015
		1016	op = new (freelist) object;
		1017	op->count = li.count;
		1018
		1019	freelist = li.next;
		1020	--free_count;
		1021	}
		1022	else
		1023	{
		1024	void *ni = salloc0<char> (sizeof (object));
		1025
		1026	op = new(ni) object;
		1027
		1028	op->count = ++object_count;
		1029	}
		1030
		1031	op->link ();
		1032
		1033	return op;
		1034	}
		1035
		1036	void
		1037	object::do_delete ()
		1038	{
		1039	uint32_t count = this->count;
		1040
		1041	this->~object ();
		1042
		1043	freelist_item *li = (freelist_item *)this;
		1044	li->next = freelist;
		1045	li->count = count;
		1046
		1047	freelist = li;
		1048	++free_count;
		1049	}
		1050
		1051	static struct freed_map : maptile
		1052	{
		1053	freed_map ()
		1054	: maptile (3, 3)
		1055	{
		1056	path = "<freed objects map>";
		1057	name = "/internal/freed_objects_map";
		1058	no_drop = 1;
		1059	no_reset = 1;
		1060
		1061	in_memory = MAP_ACTIVE;
		1062	}
		1063
		1064	~freed_map ()
		1065	{
		1066	destroy ();
		1067	}
		1068	} freed_map; // freed objects are moved here to avoid crashes
		1069
		1070	void
		1071	object::do_destroy ()
		1072	{
		1073	if (flag [FLAG_IS_LINKED])
		1074	remove_link ();
		1075
		1076	if (flag [FLAG_FRIENDLY])
		1077	remove_friendly_object (this);
		1078
		1079	remove ();
		1080
		1081	attachable::do_destroy ();
		1082
		1083	deactivate ();
1072	unlink ();	1084	unlink ();
1073		1085
1074	mortals.push_back (this);	1086	flag [FLAG_FREED] = 1;
1075	}
1076		1087
1077	/*	1088	// hack to ensure that freed objects still have a valid map
1078	* sub_weight() recursively (outwards) subtracts a number from the	1089	map = &freed_map;
1079	* weight of an object (and what is carried by it's environment(s)).	1090	x = 1;
1080	*/	1091	y = 1;
1081		1092
1082	void	1093	if (more)
1083	sub_weight (object *op, signed long weight)
1084	{
1085	while (op != NULL)
1086	{
1087	if (op->type == CONTAINER)
1088	{
1089	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1090	}
1091	op->carrying -= weight;
1092	op = op->env;
1093	}	1094	{
1094	}	1095	more->destroy ();
		1096	more = 0;
		1097	}
1095		1098
1096	/* remove_ob(op):	1099	head = 0;
		1100
		1101	// clear those pointers that likely might cause circular references
		1102	owner = 0;
		1103	enemy = 0;
		1104	attacked_by = 0;
		1105	current_weapon = 0;
		1106	}
		1107
		1108	void
		1109	object::destroy ()
		1110	{
		1111	if (destroyed ())
		1112	return;
		1113
		1114	if (!is_head () && !head->destroyed ())
		1115	{
		1116	LOG (llevError | logBacktrace, "tried to destroy the tail of an object");
		1117	head->destroy ();
		1118	return;
		1119	}
		1120
		1121	destroy_inv_fast ();
		1122
		1123	if (is_head ())
		1124	if (sound_destroy)
		1125	play_sound (sound_destroy);
		1126	else if (flag [FLAG_MONSTER])
		1127	play_sound (sound_find ("monster_destroy")); // quick hack, too lazy to create a generic mechanism
		1128
		1129	attachable::destroy ();
		1130	}
		1131
		1132	/* op->remove ():
1097	* This function removes the object op from the linked list of objects	1133	* This function removes the object op from the linked list of objects
1098	* which it is currently tied to. When this function is done, the	1134	* which it is currently tied to. When this function is done, the
1099	* object will have no environment. If the object previously had an	1135	* object will have no environment. If the object previously had an
1100	* environment, the x and y coordinates will be updated to	1136	* environment, the x and y coordinates will be updated to
1101	* the previous environment.	1137	* the previous environment.
1102	* Beware: This function is called from the editor as well!
1103	*/	1138	*/
1104
1105	void	1139	void
1106	remove_ob (object *op)	1140	object::do_remove ()
1107	{	1141	{
1108	object *	1142	if (flag [FLAG_REMOVED])
1109	tmp, *
1110	last = NULL;
1111	object *
1112	otmp;
1113
1114	tag_t
1115	tag;
1116	int
1117	check_walk_off;
1118	mapstruct *
1119	m;
1120
1121	sint16
1122	x,
1123	y;
1124
1125	if (QUERY_FLAG (op, FLAG_REMOVED))
1126	return;	1143	return;
1127		1144
1128	SET_FLAG (op, FLAG_REMOVED);	1145	INVOKE_OBJECT (REMOVE, this);
1129		1146
1130	if (op->more != NULL)	1147	flag [FLAG_REMOVED] = true;
1131	remove_ob (op->more);	1148
		1149	if (more)
		1150	more->remove ();
1132		1151
1133	/*	1152	/*
1134	* In this case, the object to be removed is in someones	1153	* In this case, the object to be removed is in someones
1135	* inventory.	1154	* inventory.
1136	*/	1155	*/
1137	if (op->env != NULL)	1156	if (env)
1138	{	1157	{
1139	if (op->nrof)	1158	flag [FLAG_REMOVED] = false; // hack around the issue of visible_to checking flag_removed
1140	sub_weight (op->env, op->weight * op->nrof);	1159	if (object *pl = visible_to ())
1141	else	1160	esrv_del_item (pl->contr, count);
1142	sub_weight (op->env, op->weight + op->carrying);	1161	flag [FLAG_REMOVED] = true; // hack around the issue of visible_to checking flag_removed
1143		1162
1144	/* NO_FIX_PLAYER is set when a great many changes are being	1163	adjust_weight (env, total_weight (), 0);
1145	* made to players inventory. If set, avoiding the call
1146	* to save cpu time.
1147	*/
1148	if ((otmp = is_player_inv (op->env)) != NULL && otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1149	fix_player (otmp);
1150		1164
1151	if (op->above != NULL)	1165	object *pl = in_player ();
1152	op->above->below = op->below;
1153	else
1154	op->env->inv = op->below;
1155
1156	if (op->below != NULL)
1157	op->below->above = op->above;
1158		1166
1159	/* we set up values so that it could be inserted into	1167	/* we set up values so that it could be inserted into
1160	* the map, but we don't actually do that - it is up	1168	* the map, but we don't actually do that - it is up
1161	* to the caller to decide what we want to do.	1169	* to the caller to decide what we want to do.
1162	*/	1170	*/
1163	op->x = op->env->x, op->y = op->env->y;
1164	op->map = op->env->map;	1171	map = env->map;
1165	op->above = NULL, op->below = NULL;
1166	op->env = NULL;
1167	}
1168	else if (op->map)
1169	{
1170	x = op->x;	1172	x = env->x;
1171	y = op->y;	1173	y = env->y;
1172	m = get_map_from_coord (op->map, &x, &y);
1173		1174
1174	if (!m)	1175	// make sure cmov optimisation is applicable
		1176	*(above ? &above->below : &env->inv) = below;
		1177	*(below ? &below->above : &above ) = above; // &above is just a dummy
		1178
		1179	above = 0;
		1180	below = 0;
		1181	env = 0;
		1182
		1183	if (pl && pl->is_player ())
1175	{	1184	{
1176	LOG (llevError, "remove_ob called when object was on map but appears to not be within valid coordinates? %s (%d,%d)\n",	1185	if (expect_false (pl->contr->combat_ob == this))
1177	op->map->path, op->x, op->y);
1178	/* in old days, we used to set x and y to 0 and continue.
1179	* it seems if we get into this case, something is probablye
1180	* screwed up and should be fixed.
1181	*/	1186	{
1182	abort ();	1187	pl->apply (pl->contr->combat_ob, AP_UNAPPLY | AP_IGNORE_CURSE);
		1188	pl->contr->combat_ob = 0;
		1189	if (pl->contr->ranged_ob) pl->apply (pl->contr->ranged_ob);
		1190	}
		1191
		1192	if (expect_false (pl->contr->ranged_ob == this))
		1193	{
		1194	pl->apply (pl->contr->ranged_ob, AP_UNAPPLY | AP_IGNORE_CURSE);
		1195	pl->contr->ranged_ob = 0;
		1196	if (pl->contr->combat_ob) pl->apply (pl->contr->combat_ob);
		1197	}
		1198
		1199	pl->contr->queue_stats_update ();
		1200
		1201	if (expect_false (glow_radius) && pl->is_on_map ())
		1202	update_all_los (pl->map, pl->x, pl->y);
1183	}	1203	}
		1204	}
		1205	else if (map)
		1206	{
		1207	map->dirty = true;
		1208	mapspace &ms = this->ms ();
1184		1209
1185	if (op->map != m)	1210	if (object *pl = ms.player ())
1186	LOG (llevDebug, "remove_ob: Object not really on map it claimed to be on? %s != %s, %d,%d != %d,%d\n",
1187	op->map->path, m->path, op->x, op->y, x, y);
1188
1189	/* Re did the following section of code - it looks like it had
1190	* lots of logic for things we no longer care about
1191	*/	1211	{
		1212	if (is_player ())
		1213	{
		1214	if (!flag [FLAG_WIZPASS])
		1215	ms.smell = ++mapspace::smellcount; // remember the smell of the player
		1216
		1217	// leaving a spot always closes any open container on the ground
		1218	if (container && !container->env)
		1219	// this causes spurious floorbox updates, but it ensures
		1220	// that the CLOSE event is being sent.
		1221	close_container ();
		1222
		1223	--map->players;
		1224	map->touch ();
		1225	}
		1226	else if (pl->container_ () == this)
		1227	{
		1228	// removing a container should close it
		1229	close_container ();
		1230	}
		1231	else
		1232	esrv_del_item (pl->contr, count);
		1233	}
1192		1234
1193	/* link the object above us */	1235	/* link the object above us */
1194	if (op->above)	1236	// re-link, make sure compiler can easily use cmove
1195	op->above->below = op->below;	1237	*(above ? &above->below : &ms.top) = below;
1196	else	1238	*(below ? &below->above : &ms.bot) = above;
1197	SET_MAP_TOP (m, x, y, op->below); /* we were top, set new top */
1198		1239
1199	/* Relink the object below us, if there is one */	1240	above = 0;
1200	if (op->below)	1241	below = 0;
1201	op->below->above = op->above;	1242
1202	else	1243	ms.invalidate ();
		1244
		1245	if (map->in_memory == MAP_SAVING)
		1246	return;
		1247
		1248	int check_walk_off = !flag [FLAG_NO_APPLY];
		1249
		1250	if (object *pl = ms.player ())
1203	{	1251	{
1204	/* Nothing below, which means we need to relink map object for this space	1252	if (pl->container_ () == this)
1205	* use translated coordinates in case some oddness with map tiling is	1253	/* If a container that the player is currently using somehow gets
1206	* evident	1254	* removed (most likely destroyed), update the player view
		1255	* appropriately.
1207	*/	1256	*/
1208	if (GET_MAP_OB (m, x, y) != op)	1257	pl->close_container ();
1209	{
1210	dump_object (op);
1211	LOG (llevError,
1212	"remove_ob: GET_MAP_OB does not return object to be removed even though it appears to be on the bottom?\n%s\n", errmsg);
1213	dump_object (GET_MAP_OB (m, x, y));
1214	LOG (llevError, "%s\n", errmsg);
1215	}
1216		1258
1217	SET_MAP_OB (m, x, y, op->above); /* goes on above it. */	1259	//TODO: the floorbox prev/next might need updating
		1260	//esrv_del_item (pl->contr, count);
		1261	//TODO: update floorbox to preserve ordering
		1262	if (pl->contr->ns)
		1263	pl->contr->ns->floorbox_update ();
1218	}	1264	}
1219		1265
1220	op->above = 0;	1266	if (check_walk_off)
1221	op->below = 0;	1267	for (object *above, *tmp = ms.bot; tmp; tmp = above)
1222
1223	if (op->map->in_memory == MAP_SAVING)
1224	return;
1225
1226	tag = op->count;
1227	check_walk_off = !QUERY_FLAG (op, FLAG_NO_APPLY);
1228
1229	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)
1230	{	1268	{
		1269	above = tmp->above;
		1270
1231	/* No point updating the players look faces if he is the object	1271	/* No point updating the players look faces if he is the object
1232	* being removed.	1272	* being removed.
1233	*/
1234
1235	if (tmp->type == PLAYER && tmp != op)
1236	{
1237	/* If a container that the player is currently using somehow gets
1238	* removed (most likely destroyed), update the player view
1239	* appropriately.
1240	*/	1273	*/
1241	if (tmp->container == op)
1242	{
1243	CLEAR_FLAG (op, FLAG_APPLIED);
1244	tmp->container = NULL;
1245	}
1246		1274
1247	tmp->contr->socket.update_look = 1;	1275	/* See if object moving off should effect something */
		1276	if ((move_type & tmp->move_off)
		1277	&& (move_type & ~tmp->move_off & ~tmp->move_block) == 0)
		1278	move_apply (tmp, this, 0);
1248	}	1279	}
1249		1280
1250	/* See if player moving off should effect something */	1281	if (affects_los ())
1251	if (check_walk_off && ((op->move_type & tmp->move_off) && (op->move_type & ~tmp->move_off & ~tmp->move_block) == 0))
1252	{
1253	move_apply (tmp, op, NULL);
1254
1255	if (was_destroyed (op, tag))
1256	{
1257	LOG (llevError, "BUG: remove_ob(): name %s, archname %s destroyed " "leaving object\n", &tmp->name, &tmp->arch->name);
1258	}
1259	}
1260
1261	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */
1262
1263	if (tmp->above == tmp)
1264	tmp->above = NULL;
1265
1266	last = tmp;
1267	}
1268
1269	/* last == NULL of there are no objects on this space */
1270	if (last == NULL)
1271	{
1272	/* set P_NEED_UPDATE, otherwise update_position will complain. In theory,
1273	* we could preserve the flags (GET_MAP_FLAGS), but update_position figures
1274	* those out anyways, and if there are any flags set right now, they won't
1275	* be correct anyways.
1276	*/
1277	SET_MAP_FLAGS (op->map, op->x, op->y, P_NEED_UPDATE);
1278	update_position (op->map, op->x, op->y);
1279	}
1280	else
1281	update_object (last, UP_OBJ_REMOVE);
1282
1283	if (QUERY_FLAG (op, FLAG_BLOCKSVIEW) || (op->glow_radius != 0))
1284	update_all_los (op->map, op->x, op->y);	1282	update_all_los (map, x, y);
1285	}	1283	}
1286	}	1284	}
1287		1285
1288	/*	1286	/*
1289	* merge_ob(op,top):	1287	* merge_ob(op,top):
…		…
1297	merge_ob (object *op, object *top)	1295	merge_ob (object *op, object *top)
1298	{	1296	{
1299	if (!op->nrof)	1297	if (!op->nrof)
1300	return 0;	1298	return 0;
1301		1299
1302	if (top == NULL)	1300	if (!top)
1303	for (top = op; top != NULL && top->above != NULL; top = top->above);	1301	for (top = op; top && top->above; top = top->above)
		1302	;
1304		1303
1305	for (; top != NULL; top = top->below)	1304	for (; top; top = top->below)
1306	{	1305	if (object::can_merge (op, top))
1307	if (top == op)
1308	continue;
1309	if (CAN_MERGE (op, top))
1310	{	1306	{
1311	top->nrof += op->nrof;	1307	top->nrof += op->nrof;
1312		1308
1313	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/	1309	if (object *pl = top->visible_to ())
1314	op->weight = 0; /* Don't want any adjustements now */	1310	esrv_update_item (UPD_NROF, pl, top);
1315	remove_ob (op);	1311
1316	free_object (op);	1312	op->weight = 0; // cancel the addition above
		1313	op->carrying = 0; // must be 0 already
		1314
		1315	op->destroy ();
		1316
1317	return top;	1317	return top;
1318	}	1318	}
1319	}
1320		1319
1321	return NULL;	1320	return 0;
1322	}	1321	}
1323		1322
		1323	void
		1324	object::expand_tail ()
		1325	{
		1326	if (more)
		1327	return;
		1328
		1329	object *prev = this;
		1330
		1331	for (archetype *at = (archetype *)arch->more; at; at = (archetype *)at->more)
		1332	{
		1333	object *op = at->instance ();
		1334
		1335	op->name = name;
		1336	op->name_pl = name_pl;
		1337	op->title = title;
		1338
		1339	op->head = this;
		1340	prev->more = op;
		1341
		1342	prev = op;
		1343	}
		1344	}
		1345
1324	/*	1346	/*
1325	* same as insert_ob_in_map except it handle separate coordinates and do a clean	1347	* same as insert_ob_in_map except it handles separate coordinates and does a clean
1326	* job preparing multi-part monsters	1348	* job preparing multi-part monsters.
1327	*/	1349	*/
1328	object *	1350	object *
1329	insert_ob_in_map_at (object *op, mapstruct *m, object *originator, int flag, int x, int y)	1351	insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)
1330	{	1352	{
1331	object *tmp;	1353	op->remove ();
1332		1354
1333	if (op->head)
1334	op = op->head;
1335
1336	for (tmp = op; tmp; tmp = tmp->more)	1355	for (object *tmp = op->head_ (); tmp; tmp = tmp->more)
1337	{	1356	{
1338	tmp->x = x + tmp->arch->clone.x;	1357	tmp->x = x + tmp->arch->x;
1339	tmp->y = y + tmp->arch->clone.y;	1358	tmp->y = y + tmp->arch->y;
1340	}	1359	}
1341		1360
1342	return insert_ob_in_map (op, m, originator, flag);	1361	return insert_ob_in_map (op, m, originator, flag);
1343	}	1362	}
1344		1363
…		…
1357	* Passing 0 for flag gives proper default values, so flag really only needs	1376	* Passing 0 for flag gives proper default values, so flag really only needs
1358	* to be set if special handling is needed.	1377	* to be set if special handling is needed.
1359	*	1378	*
1360	* Return value:	1379	* Return value:
1361	* new object if 'op' was merged with other object	1380	* new object if 'op' was merged with other object
1362	* NULL if 'op' was destroyed	1381	* NULL if there was an error (destroyed, blocked etc.)
1363	* just 'op' otherwise	1382	* just 'op' otherwise
1364	*/	1383	*/
1365
1366	object *	1384	object *
1367	insert_ob_in_map (object *op, mapstruct *m, object *originator, int flag)	1385	insert_ob_in_map (object *op, maptile *m, object *originator, int flag)
1368	{	1386	{
1369	object *tmp, *top, *floor = NULL;	1387	op->remove ();
1370	sint16 x, y;
1371		1388
1372	if (QUERY_FLAG (op, FLAG_FREED))	1389	if (m == &freed_map)//D TODO: remove soon
1373	{	1390	{//D
1374	LOG (llevError, "Trying to insert freed object!\n");	1391	LOG (llevError | logBacktrace, "tries to insret object on freed objects map: %s", op->debug_desc ());//D
1375	return NULL;
1376	}	1392	}//D
1377
1378	if (m == NULL)
1379	{
1380	dump_object (op);
1381	LOG (llevError, "Trying to insert in null-map!\n%s\n", errmsg);
1382	return op;
1383	}
1384
1385	if (out_of_map (m, op->x, op->y))
1386	{
1387	dump_object (op);
1388	LOG (llevError, "Trying to insert object outside the map.\n%s\n", errmsg);
1389	#ifdef MANY_CORES
1390	/* Better to catch this here, as otherwise the next use of this object
1391	* is likely to cause a crash. Better to find out where it is getting
1392	* improperly inserted.
1393	*/
1394	abort ();
1395	#endif
1396	return op;
1397	}
1398
1399	if (!QUERY_FLAG (op, FLAG_REMOVED))
1400	{
1401	dump_object (op);
1402	LOG (llevError, "Trying to insert (map) inserted object.\n%s\n", errmsg);
1403	return op;
1404	}
1405
1406	if (op->more != NULL)
1407	{
1408	/* The part may be on a different map. */
1409
1410	object *more = op->more;
1411
1412	/* We really need the caller to normalize coordinates - if
1413	* we set the map, that doesn't work if the location is within
1414	* a map and this is straddling an edge. So only if coordinate
1415	* is clear wrong do we normalize it.
1416	*/
1417	if (OUT_OF_REAL_MAP (more->map, more->x, more->y))
1418	more->map = get_map_from_coord (m, &more->x, &more->y);
1419	else if (!more->map)
1420	{
1421	/* For backwards compatibility - when not dealing with tiled maps,
1422	* more->map should always point to the parent.
1423	*/
1424	more->map = m;
1425	}
1426
1427	if (insert_ob_in_map (more, more->map, originator, flag) == NULL)
1428	{
1429	if (!op->head)
1430	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");
1431
1432	return NULL;
1433	}
1434	}
1435
1436	CLEAR_FLAG (op, FLAG_REMOVED);
1437		1393
1438	/* Ideally, the caller figures this out. However, it complicates a lot	1394	/* Ideally, the caller figures this out. However, it complicates a lot
1439	* of areas of callers (eg, anything that uses find_free_spot would now	1395	* of areas of callers (eg, anything that uses find_free_spot would now
1440	* need extra work	1396	* need extra work
1441	*/	1397	*/
1442	op->map = get_map_from_coord (m, &op->x, &op->y);	1398	maptile *newmap = m;
1443	x = op->x;	1399	if (!xy_normalise (newmap, op->x, op->y))
1444	y = op->y;	1400	{
		1401	op->head_ ()->destroy ();// remove head_ once all tail object destroyers found
		1402	return 0;
		1403	}
		1404
		1405	if (object *more = op->more)
		1406	if (!insert_ob_in_map (more, m, originator, flag))
		1407	return 0;
		1408
		1409	op->flag [FLAG_REMOVED] = false;
		1410	op->env = 0;
		1411	op->map = newmap;
		1412
		1413	mapspace &ms = op->ms ();
1445		1414
1446	/* this has to be done after we translate the coordinates.	1415	/* this has to be done after we translate the coordinates.
1447	*/	1416	*/
1448	if (op->nrof && !(flag & INS_NO_MERGE))	1417	if (op->nrof && !(flag & INS_NO_MERGE))
1449	for (tmp = GET_MAP_OB (op->map, x, y); tmp != NULL; tmp = tmp->above)	1418	for (object *tmp = ms.bot; tmp; tmp = tmp->above)
1450	if (CAN_MERGE (op, tmp))	1419	if (object::can_merge (op, tmp))
1451	{	1420	{
		1421	// TODO: we actually want to update tmp, not op,
		1422	// but some caller surely breaks when we return tmp
		1423	// from here :/
1452	op->nrof += tmp->nrof;	1424	op->nrof += tmp->nrof;
1453	remove_ob (tmp);	1425	tmp->destroy ();
1454	free_object (tmp);
1455	}	1426	}
1456		1427
1457	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */	1428	op->clr_flag (FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */
1458	CLEAR_FLAG (op, FLAG_INV_LOCKED);	1429	op->clr_flag (FLAG_INV_LOCKED);
1459		1430
1460	if (!QUERY_FLAG (op, FLAG_ALIVE))	1431	if (!op->flag [FLAG_ALIVE])
1461	CLEAR_FLAG (op, FLAG_NO_STEAL);	1432	op->clr_flag (FLAG_NO_STEAL);
1462		1433
1463	if (flag & INS_BELOW_ORIGINATOR)	1434	if (flag & INS_BELOW_ORIGINATOR)
1464	{	1435	{
1465	if (originator->map != op->map || originator->x != op->x || originator->y != op->y)	1436	if (originator->map != op->map || originator->x != op->x || originator->y != op->y)
1466	{	1437	{
1467	LOG (llevError, "insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");	1438	LOG (llevError, "insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");
1468	abort ();	1439	abort ();
1469	}	1440	}
1470		1441
		1442	if (!originator->is_on_map ())
		1443	{
		1444	LOG (llevError, "insert_ob_in_map(%s) called with INS_BELOW_ORIGINATOR when originator '%s' not on map",
		1445	op->debug_desc (), originator->debug_desc ());
		1446	abort ();
		1447	}
		1448
1471	op->above = originator;	1449	op->above = originator;
1472	op->below = originator->below;	1450	op->below = originator->below;
1473
1474	if (op->below)
1475	op->below->above = op;
1476	else
1477	SET_MAP_OB (op->map, op->x, op->y, op);
1478
1479	/* since *below* originator, no need to update top */
1480	originator->below = op;	1451	originator->below = op;
		1452
		1453	*(op->below ? &op->below->above : &ms.bot) = op;
1481	}	1454	}
1482	else	1455	else
1483	{	1456	{
		1457	object *floor = 0;
		1458	object *top = ms.top;
		1459
1484	/* If there are other objects, then */	1460	/* If there are other objects, then */
1485	if ((!(flag & INS_MAP_LOAD)) && ((top = GET_MAP_OB (op->map, op->x, op->y)) != NULL))	1461	if (top)
1486	{	1462	{
1487	object *last = NULL;
1488
1489	/*	1463	/*
1490	* If there are multiple objects on this space, we do some trickier handling.	1464	* If there are multiple objects on this space, we do some trickier handling.
1491	* We've already dealt with merging if appropriate.	1465	* We've already dealt with merging if appropriate.
1492	* Generally, we want to put the new object on top. But if	1466	* Generally, we want to put the new object on top. But if
1493	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last	1467	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last
…		…
1496	* once we get to them. This reduces the need to traverse over all of	1470	* once we get to them. This reduces the need to traverse over all of
1497	* them when adding another one - this saves quite a bit of cpu time	1471	* them when adding another one - this saves quite a bit of cpu time
1498	* when lots of spells are cast in one area. Currently, it is presumed	1472	* when lots of spells are cast in one area. Currently, it is presumed
1499	* that flying non pickable objects are spell objects.	1473	* that flying non pickable objects are spell objects.
1500	*/	1474	*/
1501		1475	for (object *tmp = ms.bot; tmp; tmp = tmp->above)
1502	while (top != NULL)
1503	{	1476	{
1504	if (QUERY_FLAG (top, FLAG_IS_FLOOR) || QUERY_FLAG (top, FLAG_OVERLAY_FLOOR))	1477	if (tmp->flag [FLAG_IS_FLOOR] || tmp->flag [FLAG_OVERLAY_FLOOR])
1505	floor = top;	1478	floor = tmp;
1506		1479
1507	if (QUERY_FLAG (top, FLAG_NO_PICK) && (top->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (top, FLAG_IS_FLOOR))	1480	if (tmp->flag [FLAG_NO_PICK] && (tmp->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !tmp->flag [FLAG_IS_FLOOR])
1508	{	1481	{
1509	/* We insert above top, so we want this object below this */	1482	/* We insert above top, so we want this object below this */
1510	top = top->below;	1483	top = tmp->below;
1511	break;	1484	break;
1512	}	1485	}
1513		1486
1514	last = top;
1515	top = top->above;	1487	top = tmp;
1516	}	1488	}
1517
1518	/* Don't want top to be NULL, so set it to the last valid object */
1519	top = last;
1520		1489
1521	/* We let update_position deal with figuring out what the space	1490	/* We let update_position deal with figuring out what the space
1522	* looks like instead of lots of conditions here.	1491	* looks like instead of lots of conditions here.
1523	* makes things faster, and effectively the same result.	1492	* makes things faster, and effectively the same result.
1524	*/	1493	*/
1525		1494
1526	/* Have object 'fall below' other objects that block view.	1495	/* Have object 'fall below' other objects that block view.
1527	* Unless those objects are exits, type 66	1496	* Unless those objects are exits.
1528	* If INS_ON_TOP is used, don't do this processing	1497	* If INS_ON_TOP is used, don't do this processing
1529	* Need to find the object that in fact blocks view, otherwise	1498	* Need to find the object that in fact blocks view, otherwise
1530	* stacking is a bit odd.	1499	* stacking is a bit odd.
1531	*/	1500	*/
1532	if (!(flag & INS_ON_TOP) &&	1501	if (!(flag & INS_ON_TOP)
1533	(get_map_flags (op->map, NULL, op->x, op->y, NULL, NULL) & P_BLOCKSVIEW) && (op->face && !op->face->visibility))	1502	&& ms.flags () & P_BLOCKSVIEW
		1503	&& (op->face && !faces [op->face].visibility))
1534	{	1504	{
		1505	object *last;
		1506
1535	for (last = top; last != floor; last = last->below)	1507	for (last = top; last != floor; last = last->below)
1536	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))	1508	if (last->flag [FLAG_BLOCKSVIEW] && (last->type != EXIT))
1537	break;	1509	break;
		1510
1538	/* Check to see if we found the object that blocks view,	1511	/* Check to see if we found the object that blocks view,
1539	* and make sure we have a below pointer for it so that	1512	* and make sure we have a below pointer for it so that
1540	* we can get inserted below this one, which requires we	1513	* we can get inserted below this one, which requires we
1541	* set top to the object below us.	1514	* set top to the object below us.
1542	*/	1515	*/
1543	if (last && last->below && last != floor)	1516	if (last && last->below && last != floor)
1544	top = last->below;	1517	top = last->below;
1545	}	1518	}
1546	} /* If objects on this space */	1519	} /* If objects on this space */
1547		1520
1548	if (flag & INS_MAP_LOAD)
1549	top = GET_MAP_TOP (op->map, op->x, op->y);
1550
1551	if (flag & INS_ABOVE_FLOOR_ONLY)	1521	if (flag & INS_ABOVE_FLOOR_ONLY)
1552	top = floor;	1522	top = floor;
1553		1523
1554	/* Top is the object that our object (op) is going to get inserted above.	1524	// insert object above top, or bottom-most if top = 0
1555	*/
1556
1557	/* First object on this space */
1558	if (!top)	1525	if (!top)
1559	{	1526	{
1560	op->above = GET_MAP_OB (op->map, op->x, op->y);
1561
1562	if (op->above)
1563	op->above->below = op;
1564
1565	op->below = NULL;	1527	op->below = 0;
1566	SET_MAP_OB (op->map, op->x, op->y, op);	1528	op->above = ms.bot;
		1529	ms.bot = op;
		1530
		1531	*(op->above ? &op->above->below : &ms.top) = op;
1567	}	1532	}
1568	else	1533	else
1569	{ /* get inserted into the stack above top */	1534	{
1570	op->above = top->above;	1535	op->above = top->above;
1571
1572	if (op->above)
1573	op->above->below = op;	1536	top->above = op;
1574		1537
1575	op->below = top;	1538	op->below = top;
1576	top->above = op;	1539	*(op->above ? &op->above->below : &ms.top) = op;
1577	}	1540	}
		1541	}
1578		1542
1579	if (op->above == NULL)	1543	if (op->is_player ())
1580	SET_MAP_TOP (op->map, op->x, op->y, op);	1544	{
1581	} /* else not INS_BELOW_ORIGINATOR */
1582
1583	if (op->type == PLAYER)
1584	op->contr->do_los = 1;	1545	op->contr->do_los = 1;
		1546	++op->map->players;
		1547	op->map->touch ();
		1548	}
1585		1549
1586	/* If we have a floor, we know the player, if any, will be above	1550	op->map->dirty = true;
1587	* it, so save a few ticks and start from there.	1551
1588	*/	1552	if (object *pl = ms.player ())
1589	if (!(flag & INS_MAP_LOAD))	1553	//TODO: the floorbox prev/next might need updating
1590	for (tmp = floor ? floor : GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)	1554	//esrv_send_item (pl, op);
1591	if (tmp->type == PLAYER)	1555	//TODO: update floorbox to preserve ordering
1592	tmp->contr->socket.update_look = 1;	1556	if (pl->contr->ns)
		1557	pl->contr->ns->floorbox_update ();
1593		1558
1594	/* If this object glows, it may affect lighting conditions that are	1559	/* If this object glows, it may affect lighting conditions that are
1595	* visible to others on this map. But update_all_los is really	1560	* visible to others on this map. But update_all_los is really
1596	* an inefficient way to do this, as it means los for all players	1561	* an inefficient way to do this, as it means los for all players
1597	* on the map will get recalculated. The players could very well	1562	* on the map will get recalculated. The players could very well
1598	* be far away from this change and not affected in any way -	1563	* be far away from this change and not affected in any way -
1599	* this should get redone to only look for players within range,	1564	* this should get redone to only look for players within range,
1600	* or just updating the P_NEED_UPDATE for spaces within this area	1565	* or just updating the P_UPTODATE for spaces within this area
1601	* of effect may be sufficient.	1566	* of effect may be sufficient.
1602	*/	1567	*/
1603	if (MAP_DARKNESS (op->map) && (op->glow_radius != 0))	1568	if (op->affects_los ())
		1569	{
		1570	op->ms ().invalidate ();
1604	update_all_los (op->map, op->x, op->y);	1571	update_all_los (op->map, op->x, op->y);
		1572	}
1605		1573
1606	/* updates flags (blocked, alive, no magic, etc) for this map space */	1574	/* updates flags (blocked, alive, no magic, etc) for this map space */
1607	update_object (op, UP_OBJ_INSERT);	1575	update_object (op, UP_OBJ_INSERT);
1608		1576
		1577	INVOKE_OBJECT (INSERT, op);
		1578
1609	/* Don't know if moving this to the end will break anything. However,	1579	/* Don't know if moving this to the end will break anything. However,
1610	* we want to have update_look set above before calling this.	1580	* we want to have floorbox_update called before calling this.
1611	*	1581	*
1612	* check_move_on() must be after this because code called from	1582	* check_move_on() must be after this because code called from
1613	* check_move_on() depends on correct map flags (so functions like	1583	* check_move_on() depends on correct map flags (so functions like
1614	* blocked() and wall() work properly), and these flags are updated by	1584	* blocked() and wall() work properly), and these flags are updated by
1615	* update_object().	1585	* update_object().
1616	*/	1586	*/
1617		1587
1618	/* if this is not the head or flag has been passed, don't check walk on status */	1588	/* if this is not the head or flag has been passed, don't check walk on status */
1619	if (!(flag & INS_NO_WALK_ON) && !op->head)	1589	if (!(flag & INS_NO_WALK_ON) && op->is_head ())
1620	{	1590	{
1621	if (check_move_on (op, originator))	1591	if (check_move_on (op, originator, flag))
1622	return NULL;	1592	return 0;
1623		1593
1624	/* If we are a multi part object, lets work our way through the check	1594	/* If we are a multi part object, let's work our way through the check
1625	* walk on's.	1595	* walk on's.
1626	*/	1596	*/
1627	for (tmp = op->more; tmp != NULL; tmp = tmp->more)	1597	for (object *tmp = op->more; tmp; tmp = tmp->more)
1628	if (check_move_on (tmp, originator))	1598	if (check_move_on (tmp, originator, flag))
1629	return NULL;	1599	return 0;
1630	}	1600	}
1631		1601
1632	return op;	1602	return op;
1633	}	1603	}
1634		1604
1635	/* this function inserts an object in the map, but if it	1605	/* this function inserts an object in the map, but if it
1636	* finds an object of its own type, it'll remove that one first.	1606	* finds an object of its own type, it'll remove that one first.
1637	* op is the object to insert it under: supplies x and the map.	1607	* op is the object to insert it under: supplies x and the map.
1638	*/	1608	*/
1639	void	1609	void
1640	replace_insert_ob_in_map (const char *arch_string, object *op)	1610	replace_insert_ob_in_map (shstr_tmp archname, object *op)
1641	{	1611	{
1642	object *
1643	tmp;
1644	object *
1645	tmp1;
1646
1647	/* first search for itself and remove any old instances */	1612	/* first search for itself and remove any old instances */
1648		1613
1649	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)	1614	for (object *tmp = op->ms ().bot; tmp; tmp = tmp->above)
1650	{
1651	if (!strcmp (tmp->arch->name, arch_string)) /* same archetype */	1615	if (tmp->arch->archname == archname) /* same archetype */
1652	{	1616	tmp->destroy ();
1653	remove_ob (tmp);
1654	free_object (tmp);
1655	}
1656	}
1657		1617
1658	tmp1 = arch_to_object (find_archetype (arch_string));	1618	object *tmp = archetype::find (archname)->instance ();
1659		1619
1660	tmp1->x = op->x;	1620	tmp->x = op->x;
1661	tmp1->y = op->y;	1621	tmp->y = op->y;
		1622
1662	insert_ob_in_map (tmp1, op->map, op, 0);	1623	insert_ob_in_map (tmp, op->map, op, 0);
1663	}	1624	}
1664
1665	/*
1666	* get_split_ob(ob,nr) splits up ob into two parts. The part which
1667	* is returned contains nr objects, and the remaining parts contains
1668	* the rest (or is removed and freed if that number is 0).
1669	* On failure, NULL is returned, and the reason put into the
1670	* global static errmsg array.
1671	*/
1672		1625
1673	object *	1626	object *
1674	get_split_ob (object *orig_ob, uint32 nr)	1627	object::insert_at (object *where, object *originator, int flags)
1675	{	1628	{
1676	object *	1629	if (where->env)
1677	newob;	1630	return where->env->insert (this);
1678	int	1631	else
1679	is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);	1632	return where->map->insert (this, where->x, where->y, originator, flags);
1680
1681	if (orig_ob->nrof < nr)
1682	{
1683	sprintf (errmsg, "There are only %d %ss.", orig_ob->nrof ? orig_ob->nrof : 1, &orig_ob->name);
1684	return NULL;
1685	}
1686
1687	newob = object_create_clone (orig_ob);
1688
1689	if ((orig_ob->nrof -= nr) < 1)
1690	{
1691	if (!is_removed)
1692	remove_ob (orig_ob);
1693	free_object2 (orig_ob, 1);
1694	}
1695	else if (!is_removed)
1696	{
1697	if (orig_ob->env != NULL)
1698	sub_weight (orig_ob->env, orig_ob->weight * nr);
1699	if (orig_ob->env == NULL && orig_ob->map->in_memory != MAP_IN_MEMORY)
1700	{
1701	strcpy (errmsg, "Tried to split object whose map is not in memory.");
1702	LOG (llevDebug, "Error, Tried to split object whose map is not in memory.\n");
1703	return NULL;
1704	}
1705	}
1706
1707	newob->nrof = nr;
1708
1709	return newob;
1710	}	1633	}
1711		1634
		1635	// check whether we can put this into the map, respect max_volume, max_items
		1636	bool
		1637	object::can_drop_at (maptile *m, int x, int y, object *originator)
		1638	{
		1639	mapspace &ms = m->at (x, y);
		1640
		1641	int items = ms.items ();
		1642
		1643	if (!items // testing !items ensures we can drop at least one item
		1644	|| (items < m->max_items
		1645	&& ms.volume () < m->max_volume))
		1646	return true;
		1647
		1648	if (originator && originator->is_player ())
		1649	originator->contr->failmsgf (
		1650	"No matter how hard you try, you just cannot put the %s here H<Try to remove some items from the floor first.>",
		1651	query_name ()
		1652	);
		1653
		1654	return false;
		1655	}
		1656
1712	/*	1657	/*
1713	* decrease_ob_nr(object, number) decreases a specified number from	1658	* decrease(object, number) decreases a specified number from
1714	* the amount of an object. If the amount reaches 0, the object	1659	* the amount of an object. If the amount reaches 0, the object
1715	* is subsequently removed and freed.	1660	* is subsequently removed and freed.
1716	*	1661	*
1717	* Return value: 'op' if something is left, NULL if the amount reached 0	1662	* Return value: 'op' if something is left, NULL if the amount reached 0
1718	*/	1663	*/
		1664	bool
		1665	object::decrease (sint32 nr)
		1666	{
		1667	if (!nr)
		1668	return true;
1719		1669
		1670	nr = min (nr, nrof);
		1671
		1672	if (nrof > nr)
		1673	{
		1674	sint64 oweight = total_weight ();
		1675
		1676	nrof -= nr;
		1677
		1678	if (object *pl = visible_to ())
		1679	esrv_update_item (UPD_NROF, pl, this);
		1680
		1681	adjust_weight (env, oweight, total_weight ());
		1682
		1683	return true;
		1684	}
		1685	else
		1686	{
		1687	destroy ();
		1688	return false;
		1689	}
		1690	}
		1691
		1692	/*
		1693	* split(ob,nr) splits up ob into two parts. The part which
		1694	* is returned contains nr objects, and the remaining parts contains
		1695	* the rest (or is removed and returned if that number is 0).
		1696	* On failure, NULL is returned.
		1697	*/
1720	object *	1698	object *
1721	decrease_ob_nr (object *op, uint32 i)	1699	object::split (sint32 nr)
1722	{	1700	{
1723	object *tmp;	1701	int have = number_of ();
1724	player *pl;
1725		1702
1726	if (i == 0) /* objects with op->nrof require this check */	1703	if (have < nr)
1727	return op;	1704	return 0;
1728		1705	else if (have == nr)
1729	if (i > op->nrof)
1730	i = op->nrof;
1731
1732	if (QUERY_FLAG (op, FLAG_REMOVED))
1733	op->nrof -= i;
1734	else if (op->env != NULL)
1735	{	1706	{
1736	/* is this object in the players inventory, or sub container
1737	* therein?
1738	*/
1739	tmp = is_player_inv (op->env);
1740	/* nope. Is this a container the player has opened?
1741	* If so, set tmp to that player.
1742	* IMO, searching through all the players will mostly
1743	* likely be quicker than following op->env to the map,
1744	* and then searching the map for a player.
1745	*/
1746	if (!tmp)
1747	{
1748	for (pl = first_player; pl; pl = pl->next)
1749	if (pl->ob->container == op->env)
1750	break;
1751	if (pl)
1752	tmp = pl->ob;
1753	else
1754	tmp = NULL;
1755	}
1756
1757	if (i < op->nrof)
1758	{
1759	sub_weight (op->env, op->weight * i);
1760	op->nrof -= i;
1761	if (tmp)
1762	{
1763	esrv_send_item (tmp, op);
1764	}
1765	}
1766	else
1767	{
1768	remove_ob (op);	1707	remove ();
1769	op->nrof = 0;	1708	return this;
1770	if (tmp)
1771	{
1772	esrv_del_item (tmp->contr, op->count);
1773	}
1774	}
1775	}	1709	}
1776	else	1710	else
1777	{	1711	{
1778	object *above = op->above;	1712	decrease (nr);
1779		1713
1780	if (i < op->nrof)	1714	object *op = deep_clone ();
1781	op->nrof -= i;	1715	op->nrof = nr;
1782	else
1783	{
1784	remove_ob (op);
1785	op->nrof = 0;
1786	}
1787
1788	/* Since we just removed op, op->above is null */
1789	for (tmp = above; tmp != NULL; tmp = tmp->above)
1790	if (tmp->type == PLAYER)
1791	{
1792	if (op->nrof)
1793	esrv_send_item (tmp, op);
1794	else
1795	esrv_del_item (tmp->contr, op->count);
1796	}
1797	}
1798
1799	if (op->nrof)
1800	return op;	1716	return op;
1801	else
1802	{	1717	}
1803	free_object (op);	1718	}
		1719
		1720	object *
		1721	insert_ob_in_ob (object *op, object *where)
		1722	{
		1723	if (!where)
		1724	{
		1725	char *dump = dump_object (op);
		1726	LOG (llevError, "Trying to put object in NULL.\n%s\n", dump);
		1727	free (dump);
1804	return NULL;	1728	return op;
1805	}
1806	}
1807
1808	/*
1809	* add_weight(object, weight) adds the specified weight to an object,
1810	* and also updates how much the environment(s) is/are carrying.
1811	*/
1812
1813	void
1814	add_weight (object *op, signed long weight)
1815	{
1816	while (op != NULL)
1817	{	1729	}
1818	if (op->type == CONTAINER)
1819	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1820		1730
1821	op->carrying += weight;	1731	if (where->head_ () != where)
1822	op = op->env;
1823	}	1732	{
1824	}	1733	LOG (llevError | logBacktrace, "Warning: Tried to insert object into wrong part of multipart object.\n");
		1734	where = where->head;
		1735	}
1825		1736
		1737	return where->insert (op);
		1738	}
		1739
1826	/*	1740	/*
1827	* insert_ob_in_ob(op,environment):	1741	* env->insert (op)
1828	* This function inserts the object op in the linked list	1742	* This function inserts the object op in the linked list
1829	* inside the object environment.	1743	* inside the object environment.
1830	*	1744	*
1831	* Eneq(@csd.uu.se): Altered insert_ob_in_ob to make things picked up enter
1832	* the inventory at the last position or next to other objects of the same
1833	* type.
1834	* Frank: Now sorted by type, archetype and magic!
1835	*
1836	* The function returns now pointer to inserted item, and return value can	1745	* The function returns now pointer to inserted item, and return value can
1837	* be != op, if items are merged. -Tero	1746	* be != op, if items are merged. -Tero
1838	*/	1747	*/
1839
1840	object *	1748	object *
1841	insert_ob_in_ob (object *op, object *where)	1749	object::insert (object *op)
1842	{	1750	{
1843	object *
1844	tmp, *
1845	otmp;
1846
1847	if (!QUERY_FLAG (op, FLAG_REMOVED))
1848	{
1849	dump_object (op);
1850	LOG (llevError, "Trying to insert (ob) inserted object.\n%s\n", errmsg);
1851	return op;
1852	}
1853
1854	if (where == NULL)
1855	{
1856	dump_object (op);
1857	LOG (llevError, "Trying to put object in NULL.\n%s\n", errmsg);
1858	return op;
1859	}
1860
1861	if (where->head)
1862	{
1863	LOG (llevDebug, "Warning: Tried to insert object wrong part of multipart object.\n");
1864	where = where->head;
1865	}
1866
1867	if (op->more)	1751	if (op->more)
1868	{	1752	{
1869	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);	1753	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);
1870	return op;	1754	return op;
1871	}	1755	}
1872		1756
1873	CLEAR_FLAG (op, FLAG_OBJ_ORIGINAL);	1757	op->remove ();
1874	CLEAR_FLAG (op, FLAG_REMOVED);	1758
		1759	op->flag [FLAG_OBJ_ORIGINAL] = 0;
		1760
1875	if (op->nrof)	1761	if (op->nrof)
1876	{
1877	for (tmp = where->inv; tmp != NULL; tmp = tmp->below)	1762	for (object *tmp = inv; tmp; tmp = tmp->below)
1878	if (CAN_MERGE (tmp, op))	1763	if (object::can_merge (tmp, op))
1879	{	1764	{
1880	/* return the original object and remove inserted object	1765	/* return the original object and remove inserted object
1881	(client needs the original object) */	1766	(client prefers the original object) */
		1767
		1768	// carring must be 0 for mergable objects
		1769	sint64 oweight = tmp->weight * tmp->nrof;
		1770
1882	tmp->nrof += op->nrof;	1771	tmp->nrof += op->nrof;
1883	/* Weight handling gets pretty funky. Since we are adding to	1772
1884	* tmp->nrof, we need to increase the weight.	1773	if (object *pl = tmp->visible_to ())
1885	*/	1774	esrv_update_item (UPD_NROF, pl, tmp);
		1775
1886	add_weight (where, op->weight * op->nrof);	1776	adjust_weight (this, oweight, tmp->weight * tmp->nrof);
1887	SET_FLAG (op, FLAG_REMOVED);	1777
1888	free_object (op); /* free the inserted object */	1778	op->destroy ();
1889	op = tmp;	1779	op = tmp;
1890	remove_ob (op); /* and fix old object's links */	1780	goto inserted;
1891	CLEAR_FLAG (op, FLAG_REMOVED);
1892	break;
1893	}	1781	}
1894		1782
1895	/* I assume combined objects have no inventory	1783	op->owner = 0; // it's his/hers now. period.
1896	* We add the weight - this object could have just been removed
1897	* (if it was possible to merge). calling remove_ob will subtract
1898	* the weight, so we need to add it in again, since we actually do
1899	* the linking below
1900	*/
1901	add_weight (where, op->weight * op->nrof);
1902	}
1903	else
1904	add_weight (where, (op->weight + op->carrying));
1905
1906	otmp = is_player_inv (where);
1907	if (otmp && otmp->contr != NULL)
1908	{
1909	if (!QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1910	fix_player (otmp);
1911	}
1912
1913	op->map = NULL;	1784	op->map = 0;
1914	op->env = where;	1785	op->x = 0;
		1786	op->y = 0;
		1787
1915	op->above = NULL;	1788	op->above = 0;
1916	op->below = NULL;	1789	op->below = inv;
1917	op->x = 0, op->y = 0;	1790	op->env = this;
1918		1791
		1792	if (inv)
		1793	inv->above = op;
		1794
		1795	inv = op;
		1796
		1797	op->flag [FLAG_REMOVED] = 0;
		1798
		1799	if (object *pl = op->visible_to ())
		1800	esrv_send_item (pl, op);
		1801
		1802	adjust_weight (this, 0, op->total_weight ());
		1803
		1804	inserted:
1919	/* reset the light list and los of the players on the map */	1805	/* reset the light list and los of the players on the map */
1920	if ((op->glow_radius != 0) && where->map)	1806	if (op->glow_radius && is_on_map ())
1921	{
1922	#ifdef DEBUG_LIGHTS
1923	LOG (llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n", op->name);
1924	#endif /* DEBUG_LIGHTS */
1925	if (MAP_DARKNESS (where->map))
1926	update_all_los (where->map, where->x, where->y);
1927	}	1807	{
1928		1808	update_stats ();
1929	/* Client has no idea of ordering so lets not bother ordering it here.	1809	update_all_los (map, x, y);
1930	* It sure simplifies this function...
1931	*/
1932	if (where->inv == NULL)
1933	where->inv = op;
1934	else
1935	{	1810	}
1936	op->below = where->inv;	1811	else if (is_player ())
1937	op->below->above = op;	1812	// if this is a player's inventory, update stats
1938	where->inv = op;	1813	contr->queue_stats_update ();
1939	}	1814
		1815	INVOKE_OBJECT (INSERT, this);
		1816
1940	return op;	1817	return op;
1941	}	1818	}
1942		1819
1943	/*	1820	/*
1944	* Checks if any objects has a move_type that matches objects	1821	* Checks if any objects has a move_type that matches objects
…		…
1958	*	1835	*
1959	* MSW 2001-07-08: Check all objects on space, not just those below	1836	* MSW 2001-07-08: Check all objects on space, not just those below
1960	* object being inserted. insert_ob_in_map may not put new objects	1837	* object being inserted. insert_ob_in_map may not put new objects
1961	* on top.	1838	* on top.
1962	*/	1839	*/
1963
1964	int	1840	int
1965	check_move_on (object *op, object *originator)	1841	check_move_on (object *op, object *originator, int flags)
1966	{	1842	{
1967	object *	1843	if (op->flag [FLAG_NO_APPLY])
1968	tmp;
1969	tag_t
1970	tag;
1971	mapstruct *
1972	m = op->map;
1973	int
1974	x = op->x, y = op->y;
1975
1976	MoveType
1977	move_on,
1978	move_slow,
1979	move_block;
1980
1981	if (QUERY_FLAG (op, FLAG_NO_APPLY))
1982	return 0;	1844	return 0;
1983		1845
1984	tag = op->count;	1846	object *tmp;
		1847	maptile *m = op->map;
		1848	int x = op->x, y = op->y;
1985		1849
1986	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);	1850	mapspace &ms = m->at (x, y);
1987	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);	1851
1988	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);	1852	ms.update ();
		1853
		1854	MoveType move_on = ms.move_on;
		1855	MoveType move_slow = ms.move_slow;
		1856	MoveType move_block = ms.move_block;
1989		1857
1990	/* if nothing on this space will slow op down or be applied,	1858	/* if nothing on this space will slow op down or be applied,
1991	* no need to do checking below. have to make sure move_type	1859	* no need to do checking below. have to make sure move_type
1992	* is set, as lots of objects don't have it set - we treat that	1860	* is set, as lots of objects don't have it set - we treat that
1993	* as walking.	1861	* as walking.
…		…
2004	return 0;	1872	return 0;
2005		1873
2006	/* The objects have to be checked from top to bottom.	1874	/* The objects have to be checked from top to bottom.
2007	* Hence, we first go to the top:	1875	* Hence, we first go to the top:
2008	*/	1876	*/
2009		1877	for (object *next, *tmp = ms.top; tmp; tmp = next)
2010	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL && tmp->above != NULL; tmp = tmp->above)
2011	{
2012	/* Trim the search when we find the first other spell effect
2013	* this helps performance so that if a space has 50 spell objects,
2014	* we don't need to check all of them.
2015	*/
2016	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG (tmp, FLAG_NO_PICK))
2017	break;
2018	}	1878	{
		1879	next = tmp->below;
2019		1880
2020	for (; tmp; tmp = tmp->below)
2021	{
2022	if (tmp == op)	1881	if (tmp == op)
2023	continue; /* Can't apply yourself */	1882	continue; /* Can't apply yourself */
2024		1883
2025	/* Check to see if one of the movement types should be slowed down.	1884	/* Check to see if one of the movement types should be slowed down.
2026	* Second check makes sure that the movement types not being slowed	1885	* Second check makes sure that the movement types not being slowed
2027	* (~slow_move) is not blocked on this space - just because the	1886	* (~slow_move) is not blocked on this space - just because the
2028	* space doesn't slow down swimming (for example), if you can't actually	1887	* space doesn't slow down swimming (for example), if you can't actually
2029	* swim on that space, can't use it to avoid the penalty.	1888	* swim on that space, can't use it to avoid the penalty.
2030	*/	1889	*/
2031	if (!QUERY_FLAG (op, FLAG_WIZPASS))	1890	if (!op->flag [FLAG_WIZPASS])
2032	{	1891	{
2033	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||	1892	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||
2034	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))	1893	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))
2035	{	1894	{
2036
2037	float
2038	diff = tmp->move_slow_penalty * FABS (op->speed);	1895	float diff = tmp->move_slow_penalty * fabs (op->speed);
2039		1896
2040	if (op->type == PLAYER)	1897	if (op->is_player ())
2041	if ((QUERY_FLAG (tmp, FLAG_IS_HILLY) && find_skill_by_number (op, SK_CLIMBING)) ||	1898	if ((tmp->flag [FLAG_IS_HILLY ] && find_skill_by_number (op, SK_CLIMBING)) ||
2042	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))	1899	(tmp->flag [FLAG_IS_WOODED] && find_skill_by_number (op, SK_WOODSMAN)))
2043	diff /= 4.0;	1900	diff /= 4.0;
2044		1901
2045	op->speed_left -= diff;	1902	op->speed_left -= diff;
2046	}	1903	}
2047	}	1904	}
2048		1905
2049	/* Basically same logic as above, except now for actual apply. */	1906	/* Basically same logic as above, except now for actual apply. */
2050	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||	1907	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||
2051	((op->move_type & tmp->move_on) && (op->move_type & ~tmp->move_on & ~tmp->move_block) == 0))	1908	((op->move_type & tmp->move_on) && (op->move_type & ~tmp->move_on & ~tmp->move_block) == 0))
2052	{	1909	{
		1910	if ((flags & INS_NO_AUTO_EXIT)
		1911	&& (tmp->type == EXIT || tmp->type == TELEPORTER
		1912	|| tmp->type == HOLE || tmp->type == TRAPDOOR)) //TODO: temporary, fix exits instead
		1913	continue;
		1914
2053	move_apply (tmp, op, originator);	1915	move_apply (tmp, op, originator);
2054		1916
2055	if (was_destroyed (op, tag))	1917	if (op->destroyed ())
2056	return 1;	1918	return 1;
2057		1919
2058	/* what the person/creature stepped onto has moved the object	1920	/* what the person/creature stepped onto has moved the object
2059	* someplace new. Don't process any further - if we did,	1921	* someplace new. Don't process any further - if we did,
2060	* have a feeling strange problems would result.	1922	* have a feeling strange problems would result.
…		…
2070	/*	1932	/*
2071	* present_arch(arch, map, x, y) searches for any objects with	1933	* present_arch(arch, map, x, y) searches for any objects with
2072	* a matching archetype at the given map and coordinates.	1934	* a matching archetype at the given map and coordinates.
2073	* The first matching object is returned, or NULL if none.	1935	* The first matching object is returned, or NULL if none.
2074	*/	1936	*/
2075
2076	object *	1937	object *
2077	present_arch (const archetype *at, mapstruct *m, int x, int y)	1938	present_arch (const archetype *at, maptile *m, int x, int y)
2078	{	1939	{
2079	object *
2080	tmp;
2081
2082	if (m == NULL || out_of_map (m, x, y))	1940	if (!m || out_of_map (m, x, y))
2083	{	1941	{
2084	LOG (llevError, "Present_arch called outside map.\n");	1942	LOG (llevError, "Present_arch called outside map.\n");
2085	return NULL;	1943	return NULL;
2086	}	1944	}
2087	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)	1945
2088	if (tmp->arch == at)	1946	for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)
		1947	if (tmp->arch->archname == at->archname)
2089	return tmp;	1948	return tmp;
		1949
2090	return NULL;	1950	return NULL;
2091	}	1951	}
2092		1952
2093	/*	1953	/*
2094	* present(type, map, x, y) searches for any objects with	1954	* present(type, map, x, y) searches for any objects with
2095	* a matching type variable at the given map and coordinates.	1955	* a matching type variable at the given map and coordinates.
2096	* The first matching object is returned, or NULL if none.	1956	* The first matching object is returned, or NULL if none.
2097	*/	1957	*/
2098
2099	object *	1958	object *
2100	present (unsigned char type, mapstruct *m, int x, int y)	1959	present (unsigned char type, maptile *m, int x, int y)
2101	{	1960	{
2102	object *
2103	tmp;
2104
2105	if (out_of_map (m, x, y))	1961	if (out_of_map (m, x, y))
2106	{	1962	{
2107	LOG (llevError, "Present called outside map.\n");	1963	LOG (llevError, "Present called outside map.\n");
2108	return NULL;	1964	return NULL;
2109	}	1965	}
2110	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)	1966
		1967	for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)
2111	if (tmp->type == type)	1968	if (tmp->type == type)
2112	return tmp;	1969	return tmp;
		1970
2113	return NULL;	1971	return NULL;
2114	}	1972	}
2115		1973
2116	/*	1974	/*
2117	* present_in_ob(type, object) searches for any objects with	1975	* present_in_ob(type, object) searches for any objects with
2118	* a matching type variable in the inventory of the given object.	1976	* a matching type variable in the inventory of the given object.
2119	* The first matching object is returned, or NULL if none.	1977	* The first matching object is returned, or NULL if none.
2120	*/	1978	*/
2121
2122	object *	1979	object *
2123	present_in_ob (unsigned char type, const object *op)	1980	present_in_ob (unsigned char type, const object *op)
2124	{	1981	{
2125	object *
2126	tmp;
2127
2128	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1982	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
2129	if (tmp->type == type)	1983	if (tmp->type == type)
2130	return tmp;	1984	return tmp;
		1985
2131	return NULL;	1986	return NULL;
2132	}	1987	}
2133		1988
2134	/*	1989	/*
2135	* present_in_ob (type, str, object) searches for any objects with	1990	* present_in_ob (type, str, object) searches for any objects with
…		…
2143	* str is the string to match against. Note that we match against	1998	* str is the string to match against. Note that we match against
2144	* the object name, not the archetype name. this is so that the	1999	* the object name, not the archetype name. this is so that the
2145	* spell code can use one object type (force), but change it's name	2000	* spell code can use one object type (force), but change it's name
2146	* to be unique.	2001	* to be unique.
2147	*/	2002	*/
2148
2149	object *	2003	object *
2150	present_in_ob_by_name (int type, const char *str, const object *op)	2004	present_in_ob_by_name (int type, const char *str, const object *op)
2151	{	2005	{
2152	object *
2153	tmp;
2154
2155	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	2006	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2156	{
2157	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))	2007	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))
2158	return tmp;	2008	return tmp;
2159	}	2009
2160	return NULL;	2010	return 0;
2161	}	2011	}
2162		2012
2163	/*	2013	/*
2164	* present_arch_in_ob(archetype, object) searches for any objects with	2014	* present_arch_in_ob(archetype, object) searches for any objects with
2165	* a matching archetype in the inventory of the given object.	2015	* a matching archetype in the inventory of the given object.
2166	* The first matching object is returned, or NULL if none.	2016	* The first matching object is returned, or NULL if none.
2167	*/	2017	*/
2168
2169	object *	2018	object *
2170	present_arch_in_ob (const archetype *at, const object *op)	2019	present_arch_in_ob (const archetype *at, const object *op)
2171	{	2020	{
2172	object *
2173	tmp;
2174
2175	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	2021	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2176	if (tmp->arch == at)	2022	if (tmp->arch->archname == at->archname)
2177	return tmp;	2023	return tmp;
		2024
2178	return NULL;	2025	return NULL;
2179	}	2026	}
2180		2027
2181	/*	2028	/*
2182	* activate recursively a flag on an object inventory	2029	* activate recursively a flag on an object inventory
2183	*/	2030	*/
2184	void	2031	void
2185	flag_inv (object *op, int flag)	2032	flag_inv (object *op, int flag)
2186	{	2033	{
2187	object *
2188	tmp;
2189
2190	if (op->inv)
2191	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	2034	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2192	{	2035	{
2193	SET_FLAG (tmp, flag);	2036	tmp->set_flag (flag);
2194	flag_inv (tmp, flag);	2037	flag_inv (tmp, flag);
2195	}	2038	}
2196	} /*	2039	}
		2040
		2041	/*
2197	* desactivate recursively a flag on an object inventory	2042	* deactivate recursively a flag on an object inventory
2198	*/	2043	*/
2199	void	2044	void
2200	unflag_inv (object *op, int flag)	2045	unflag_inv (object *op, int flag)
2201	{	2046	{
2202	object *
2203	tmp;
2204
2205	if (op->inv)
2206	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	2047	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2207	{	2048	{
2208	CLEAR_FLAG (tmp, flag);	2049	tmp->clr_flag (flag);
2209	unflag_inv (tmp, flag);	2050	unflag_inv (tmp, flag);
2210	}	2051	}
2211	}
2212
2213	/*
2214	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in
2215	* all it's inventory (recursively).
2216	* If checksums are used, a player will get set_cheat called for
2217	* him/her-self and all object carried by a call to this function.
2218	*/
2219
2220	void
2221	set_cheat (object *op)
2222	{
2223	SET_FLAG (op, FLAG_WAS_WIZ);
2224	flag_inv (op, FLAG_WAS_WIZ);
2225	}	2052	}
2226		2053
2227	/*	2054	/*
2228	* find_free_spot(object, map, x, y, start, stop) will search for	2055	* find_free_spot(object, map, x, y, start, stop) will search for
2229	* a spot at the given map and coordinates which will be able to contain	2056	* a spot at the given map and coordinates which will be able to contain
…		…
2231	* to search (see the freearr_x/y[] definition).	2058	* to search (see the freearr_x/y[] definition).
2232	* It returns a random choice among the alternatives found.	2059	* It returns a random choice among the alternatives found.
2233	* start and stop are where to start relative to the free_arr array (1,9	2060	* start and stop are where to start relative to the free_arr array (1,9
2234	* does all 4 immediate directions). This returns the index into the	2061	* does all 4 immediate directions). This returns the index into the
2235	* array of the free spot, -1 if no spot available (dir 0 = x,y)	2062	* array of the free spot, -1 if no spot available (dir 0 = x,y)
2236	* Note - this only checks to see if there is space for the head of the
2237	* object - if it is a multispace object, this should be called for all
2238	* pieces.
2239	* Note2: This function does correctly handle tiled maps, but does not	2063	* Note: This function does correctly handle tiled maps, but does not
2240	* inform the caller. However, insert_ob_in_map will update as	2064	* inform the caller. However, insert_ob_in_map will update as
2241	* necessary, so the caller shouldn't need to do any special work.	2065	* necessary, so the caller shouldn't need to do any special work.
2242	* Note - updated to take an object instead of archetype - this is necessary	2066	* Note - updated to take an object instead of archetype - this is necessary
2243	* because arch_blocked (now ob_blocked) needs to know the movement type	2067	* because arch_blocked (now ob_blocked) needs to know the movement type
2244	* to know if the space in question will block the object. We can't use	2068	* to know if the space in question will block the object. We can't use
2245	* the archetype because that isn't correct if the monster has been	2069	* the archetype because that isn't correct if the monster has been
2246	* customized, changed states, etc.	2070	* customized, changed states, etc.
2247	*/	2071	*/
2248
2249	int	2072	int
2250	find_free_spot (const object *ob, mapstruct *m, int x, int y, int start, int stop)	2073	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)
2251	{	2074	{
2252	int
2253	i,
2254	index = 0, flag;
2255	static int
2256	altern[SIZEOFFREE];	2075	int altern[SIZEOFFREE];
		2076	int index = 0, flag;
2257		2077
2258	for (i = start; i < stop; i++)	2078	for (int i = start; i < stop; i++)
2259	{	2079	{
2260	flag = ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]);	2080	mapxy pos (m, x, y); pos.move (i);
2261	if (!flag)	2081
		2082	if (!pos.normalise ())
		2083	continue;
		2084
		2085	mapspace &ms = *pos;
		2086
		2087	if (ms.flags () & P_IS_ALIVE)
		2088	continue;
		2089
		2090	/* However, often
		2091	* ob doesn't have any move type (when used to place exits)
		2092	* so the AND operation in OB_TYPE_MOVE_BLOCK doesn't work.
		2093	*/
		2094	if (ob && ob->move_type == 0 && ms.move_block != MOVE_ALL)
		2095	{
2262	altern[index++] = i;	2096	altern [index++] = i;
		2097	continue;
		2098	}
2263		2099
2264	/* Basically, if we find a wall on a space, we cut down the search size.	2100	/* Basically, if we find a wall on a space, we cut down the search size.
2265	* In this way, we won't return spaces that are on another side of a wall.	2101	* In this way, we won't return spaces that are on another side of a wall.
2266	* This mostly work, but it cuts down the search size in all directions -	2102	* This mostly work, but it cuts down the search size in all directions -
2267	* if the space being examined only has a wall to the north and empty	2103	* if the space being examined only has a wall to the north and empty
2268	* spaces in all the other directions, this will reduce the search space	2104	* spaces in all the other directions, this will reduce the search space
2269	* to only the spaces immediately surrounding the target area, and	2105	* to only the spaces immediately surrounding the target area, and
2270	* won't look 2 spaces south of the target space.	2106	* won't look 2 spaces south of the target space.
2271	*/	2107	*/
2272	else if ((flag & AB_NO_PASS) && maxfree[i] < stop)	2108	if (ms.move_block == MOVE_ALL && maxfree[i] < stop)
		2109	{
2273	stop = maxfree[i];	2110	stop = maxfree[i];
		2111	continue;
		2112	}
		2113
		2114	/* Note it is intentional that we check ob - the movement type of the
		2115	* head of the object should correspond for the entire object.
		2116	*/
		2117	if (OB_TYPE_MOVE_BLOCK (ob, ms.move_block))
		2118	continue;
		2119
		2120	if (ob->blocked (pos.m, pos.x, pos.y))
		2121	continue;
		2122
		2123	altern [index++] = i;
2274	}	2124	}
		2125
2275	if (!index)	2126	if (!index)
2276	return -1;	2127	return -1;
		2128
2277	return altern[RANDOM () % index];	2129	return altern [rndm (index)];
2278	}	2130	}
2279		2131
2280	/*	2132	/*
2281	* find_first_free_spot(archetype, mapstruct, x, y) works like	2133	* find_first_free_spot(archetype, maptile, x, y) works like
2282	* find_free_spot(), but it will search max number of squares.	2134	* find_free_spot(), but it will search max number of squares.
2283	* But it will return the first available spot, not a random choice.	2135	* But it will return the first available spot, not a random choice.
2284	* Changed 0.93.2: Have it return -1 if there is no free spot available.	2136	* Changed 0.93.2: Have it return -1 if there is no free spot available.
2285	*/	2137	*/
2286
2287	int	2138	int
2288	find_first_free_spot (const object *ob, mapstruct *m, int x, int y)	2139	find_first_free_spot (const object *ob, maptile *m, int x, int y)
2289	{	2140	{
2290	int
2291	i;
2292
2293	for (i = 0; i < SIZEOFFREE; i++)	2141	for (int i = 0; i < SIZEOFFREE; i++)
2294	{
2295	if (!ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]))	2142	if (!ob->blocked (m, x + freearr_x[i], y + freearr_y[i]))
2296	return i;	2143	return i;
2297	}	2144
2298	return -1;	2145	return -1;
2299	}	2146	}
2300		2147
2301	/*	2148	/*
2302	* The function permute(arr, begin, end) randomly reorders the array	2149	* The function permute(arr, begin, end) randomly reorders the array
2303	* arr[begin..end-1].	2150	* arr[begin..end-1].
		2151	* now uses a fisher-yates shuffle, old permute was broken
2304	*/	2152	*/
2305	static void	2153	static void
2306	permute (int *arr, int begin, int end)	2154	permute (int *arr, int begin, int end)
2307	{	2155	{
2308	int	2156	arr += begin;
2309	i,
2310	j,
2311	tmp,
2312	len;
2313
2314	len = end - begin;	2157	end -= begin;
2315	for (i = begin; i < end; i++)
2316	{
2317	j = begin + RANDOM () % len;
2318		2158
2319	tmp = arr[i];	2159	while (--end)
2320	arr[i] = arr[j];	2160	swap (arr [end], arr [rndm (end + 1)]);
2321	arr[j] = tmp;
2322	}
2323	}	2161	}
2324		2162
2325	/* new function to make monster searching more efficient, and effective!	2163	/* new function to make monster searching more efficient, and effective!
2326	* This basically returns a randomized array (in the passed pointer) of	2164	* This basically returns a randomized array (in the passed pointer) of
2327	* the spaces to find monsters. In this way, it won't always look for	2165	* the spaces to find monsters. In this way, it won't always look for
…		…
2330	* the 3x3 area will be searched, just not in a predictable order.	2168	* the 3x3 area will be searched, just not in a predictable order.
2331	*/	2169	*/
2332	void	2170	void
2333	get_search_arr (int *search_arr)	2171	get_search_arr (int *search_arr)
2334	{	2172	{
2335	int	2173	int i;
2336	i;
2337		2174
2338	for (i = 0; i < SIZEOFFREE; i++)	2175	for (i = 0; i < SIZEOFFREE; i++)
2339	{
2340	search_arr[i] = i;	2176	search_arr[i] = i;
2341	}
2342		2177
2343	permute (search_arr, 1, SIZEOFFREE1 + 1);	2178	permute (search_arr, 1, SIZEOFFREE1 + 1);
2344	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);	2179	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);
2345	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);	2180	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);
2346	}	2181	}
…		…
2355	* Perhaps incorrectly, but I'm making the assumption that exclude	2190	* Perhaps incorrectly, but I'm making the assumption that exclude
2356	* is actually want is going to try and move there. We need this info	2191	* is actually want is going to try and move there. We need this info
2357	* because we have to know what movement the thing looking to move	2192	* because we have to know what movement the thing looking to move
2358	* there is capable of.	2193	* there is capable of.
2359	*/	2194	*/
2360
2361	int	2195	int
2362	find_dir (mapstruct *m, int x, int y, object *exclude)	2196	find_dir (maptile *m, int x, int y, object *exclude)
2363	{	2197	{
2364	int
2365	i,
2366	max = SIZEOFFREE, mflags;	2198	int max = SIZEOFFREE, mflags;
2367
2368	sint16 nx, ny;
2369	object *
2370	tmp;
2371	mapstruct *
2372	mp;
2373
2374	MoveType blocked, move_type;	2199	MoveType move_type;
2375		2200
2376	if (exclude && exclude->head)	2201	if (exclude && exclude->head_ () != exclude)
2377	{	2202	{
2378	exclude = exclude->head;	2203	exclude = exclude->head;
2379	move_type = exclude->move_type;	2204	move_type = exclude->move_type;
2380	}	2205	}
2381	else	2206	else
2382	{	2207	{
2383	/* If we don't have anything, presume it can use all movement types. */	2208	/* If we don't have anything, presume it can use all movement types. */
2384	move_type = MOVE_ALL;	2209	move_type = MOVE_ALL;
2385	}	2210	}
2386		2211
2387	for (i = 1; i < max; i++)	2212	for (int i = 1; i < max; i++)
2388	{	2213	{
2389	mp = m;	2214	mapxy pos (m, x, y);
2390	nx = x + freearr_x[i];	2215	pos.move (i);
2391	ny = y + freearr_y[i];
2392		2216
2393	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);	2217	if (!pos.normalise ())
2394	if (mflags & P_OUT_OF_MAP)
2395	{
2396	max = maxfree[i];	2218	max = maxfree[i];
2397	}
2398	else	2219	else
2399	{	2220	{
2400	blocked = GET_MAP_MOVE_BLOCK (mp, nx, ny);	2221	mapspace &ms = *pos;
2401		2222
2402	if ((move_type & blocked) == move_type)	2223	if ((move_type & ms.move_block) == move_type)
		2224	max = maxfree [i];
		2225	else if (ms.flags () & P_IS_ALIVE)
2403	{	2226	{
2404	max = maxfree[i];	2227	for (object *tmp = ms.bot; tmp; tmp = tmp->above)
2405	}	2228	if ((tmp->flag [FLAG_MONSTER] || tmp->is_player ())
2406	else if (mflags & P_IS_ALIVE)	2229	&& (tmp != exclude || (tmp->head_ () != tmp && tmp->head_ () != exclude)))
2407	{
2408	for (tmp = GET_MAP_OB (mp, nx, ny); tmp != NULL; tmp = tmp->above)
2409	{
2410	if ((QUERY_FLAG (tmp, FLAG_MONSTER) || tmp->type == PLAYER) && (tmp != exclude || (tmp->head && tmp->head != exclude)))
2411	{
2412	break;
2413	}
2414	}
2415	if (tmp)
2416	{
2417	return freedir[i];	2230	return freedir [i];
2418	}
2419	}	2231	}
2420	}	2232	}
2421	}	2233	}
		2234
2422	return 0;	2235	return 0;
2423	}	2236	}
2424		2237
2425	/*	2238	/*
2426	* distance(object 1, object 2) will return the square of the	2239	* distance(object 1, object 2) will return the square of the
2427	* distance between the two given objects.	2240	* distance between the two given objects.
2428	*/	2241	*/
2429
2430	int	2242	int
2431	distance (const object *ob1, const object *ob2)	2243	distance (const object *ob1, const object *ob2)
2432	{	2244	{
2433	int
2434	i;
2435
2436	i = (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);	2245	return (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);
2437	return i;
2438	}	2246	}
2439		2247
2440	/*	2248	/*
2441	* find_dir_2(delta-x,delta-y) will return a direction in which	2249	* find_dir_2(delta-x,delta-y) will return a direction value
2442	* an object which has subtracted the x and y coordinates of another	2250	* for running into direct [dx, dy].
2443	* object, needs to travel toward it.	2251	* (the opposite of crossfire's find_dir_2!)
2444	*/	2252	*/
2445
2446	int	2253	int
2447	find_dir_2 (int x, int y)	2254	find_dir_2 (int x, int y)
2448	{	2255	{
		2256	#if 1 // new algorithm
		2257	// this works by putting x, y into 16 sectors, which
		2258	// are not equal sized, but are a better approximation
		2259	// then the old algorithm, and then using a mapping
		2260	// table to map it into a direction value.
		2261	// basically, it maps these comparisons to each bit
		2262	// bit #3: x < 0
		2263	// bit #2: y < 0
		2264	// bit #1: x > y
		2265	// bit #0: x > 2y
		2266
		2267	static const uint8 dir[16] = {
		2268	4, 5, 4, 3,
		2269	2, 1, 2, 3,
		2270	6, 5, 6, 7,
		2271	8, 1, 8, 7,
		2272	};
		2273	int sector = 0;
		2274
		2275	// this is a bit ugly, but more likely to result in branchless code
		2276	sector |= x < 0 ? 8 : 0;
		2277	x = x < 0 ? -x : x; // abs
		2278
		2279	sector |= y < 0 ? 4 : 0;
		2280	y = y < 0 ? -y : y; // abs
		2281
		2282	if (x > y)
		2283	{
		2284	sector |= 2;
		2285
		2286	if (x > y * 2)
		2287	sector |= 1;
		2288	}
		2289	else
		2290	{
		2291	if (y > x * 2)
		2292	sector |= 1;
		2293	else if (!y)
		2294	return 0; // x == 0 here
		2295	}
		2296
		2297	return dir [sector];
		2298	#else // old algorithm
2449	int	2299	int q;
2450	q;
2451		2300
2452	if (y)	2301	if (y)
2453	q = x * 100 / y;	2302	q = 128 * x / y;
2454	else if (x)	2303	else if (x)
2455	q = -300 * x;	2304	q = -512 * x; // to make it > 309
2456	else	2305	else
2457	return 0;	2306	return 0;
2458		2307
2459	if (y > 0)	2308	if (y > 0)
2460	{	2309	{
2461	if (q < -242)	2310	if (q < -309) return 7;
		2311	if (q < -52) return 6;
		2312	if (q < 52) return 5;
		2313	if (q < 309) return 4;
		2314
2462	return 3;	2315	return 3;
2463	if (q < -41)	2316	}
2464	return 2;	2317	else
2465	if (q < 41)	2318	{
2466	return 1;	2319	if (q < -309) return 3;
2467	if (q < 242)	2320	if (q < -52) return 2;
2468	return 8;	2321	if (q < 52) return 1;
		2322	if (q < 309) return 8;
		2323
2469	return 7;	2324	return 7;
2470	}	2325	}
2471		2326	#endif
2472	if (q < -242)
2473	return 7;
2474	if (q < -41)
2475	return 6;
2476	if (q < 41)
2477	return 5;
2478	if (q < 242)
2479	return 4;
2480
2481	return 3;
2482	}
2483
2484	/*
2485	* absdir(int): Returns a number between 1 and 8, which represent
2486	* the "absolute" direction of a number (it actually takes care of
2487	* "overflow" in previous calculations of a direction).
2488	*/
2489
2490	int
2491	absdir (int d)
2492	{
2493	while (d < 1)
2494	d += 8;
2495	while (d > 8)
2496	d -= 8;
2497	return d;
2498	}	2327	}
2499		2328
2500	/*	2329	/*
2501	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is	2330	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is
2502	* between two directions (which are expected to be absolute (see absdir())	2331	* between two directions (which are expected to be absolute (see absdir())
2503	*/	2332	*/
2504
2505	int	2333	int
2506	dirdiff (int dir1, int dir2)	2334	dirdiff (int dir1, int dir2)
2507	{	2335	{
2508	int
2509	d;
2510
2511	d = abs (dir1 - dir2);	2336	int d = abs (dir1 - dir2);
2512	if (d > 4)	2337
2513	d = 8 - d;	2338	return d > 4 ? 8 - d : d;
2514	return d;
2515	}	2339	}
2516		2340
2517	/* peterm:	2341	/* peterm:
2518	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.	2342	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.
2519	* Basically, this is a table of directions, and what directions	2343	* Basically, this is a table of directions, and what directions
…		…
2521	* This basically means that if direction is 15, then it could either go	2345	* This basically means that if direction is 15, then it could either go
2522	* direction 4, 14, or 16 to get back to where we are.	2346	* direction 4, 14, or 16 to get back to where we are.
2523	* Moved from spell_util.c to object.c with the other related direction	2347	* Moved from spell_util.c to object.c with the other related direction
2524	* functions.	2348	* functions.
2525	*/	2349	*/
2526
2527	int
2528	reduction_dir[SIZEOFFREE][3] = {	2350	static const int reduction_dir[SIZEOFFREE][3] = {
2529	{0, 0, 0}, /* 0 */	2351	{0, 0, 0}, /* 0 */
2530	{0, 0, 0}, /* 1 */	2352	{0, 0, 0}, /* 1 */
2531	{0, 0, 0}, /* 2 */	2353	{0, 0, 0}, /* 2 */
2532	{0, 0, 0}, /* 3 */	2354	{0, 0, 0}, /* 3 */
2533	{0, 0, 0}, /* 4 */	2355	{0, 0, 0}, /* 4 */
…		…
2581	* find a path to that monster that we found. If not,	2403	* find a path to that monster that we found. If not,
2582	* we don't bother going toward it. Returns 1 if we	2404	* we don't bother going toward it. Returns 1 if we
2583	* can see a direct way to get it	2405	* can see a direct way to get it
2584	* Modified to be map tile aware -.MSW	2406	* Modified to be map tile aware -.MSW
2585	*/	2407	*/
2586
2587
2588	int	2408	int
2589	can_see_monsterP (mapstruct *m, int x, int y, int dir)	2409	can_see_monsterP (maptile *m, int x, int y, int dir)
2590	{	2410	{
2591	sint16 dx, dy;	2411	sint16 dx, dy;
2592	int
2593	mflags;	2412	int mflags;
2594		2413
2595	if (dir < 0)	2414	if (dir < 0)
2596	return 0; /* exit condition: invalid direction */	2415	return 0; /* exit condition: invalid direction */
2597		2416
2598	dx = x + freearr_x[dir];	2417	dx = x + freearr_x[dir];
…		…
2611	return 0;	2430	return 0;
2612		2431
2613	/* yes, can see. */	2432	/* yes, can see. */
2614	if (dir < 9)	2433	if (dir < 9)
2615	return 1;	2434	return 1;
		2435
2616	return can_see_monsterP (m, x, y, reduction_dir[dir][0]) |	2436	return can_see_monsterP (m, x, y, reduction_dir[dir][0])
2617	can_see_monsterP (m, x, y, reduction_dir[dir][1]) | can_see_monsterP (m, x, y, reduction_dir[dir][2]);	2437	| can_see_monsterP (m, x, y, reduction_dir[dir][1])
		2438	| can_see_monsterP (m, x, y, reduction_dir[dir][2]);
2618	}	2439	}
2619
2620
2621		2440
2622	/*	2441	/*
2623	* can_pick(picker, item): finds out if an object is possible to be	2442	* can_pick(picker, item): finds out if an object is possible to be
2624	* picked up by the picker. Returnes 1 if it can be	2443	* picked up by the picker. Returnes 1 if it can be
2625	* picked up, otherwise 0.	2444	* picked up, otherwise 0.
…		…
2627	* Cf 0.91.3 - don't let WIZ's pick up anything - will likely cause	2446	* Cf 0.91.3 - don't let WIZ's pick up anything - will likely cause
2628	* core dumps if they do.	2447	* core dumps if they do.
2629	*	2448	*
2630	* Add a check so we can't pick up invisible objects (0.93.8)	2449	* Add a check so we can't pick up invisible objects (0.93.8)
2631	*/	2450	*/
2632
2633	int	2451	int
2634	can_pick (const object *who, const object *item)	2452	can_pick (const object *who, const object *item)
2635	{	2453	{
2636	return /*QUERY_FLAG(who,FLAG_WIZ)|| */	2454	return /*who->flag [FLAG_WIZ]|| */
2637	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&	2455	(item->weight > 0 && !item->flag [FLAG_NO_PICK] &&
2638	!QUERY_FLAG (item, FLAG_ALIVE) && !item->invisible && (who->type == PLAYER || item->weight < who->weight / 3));	2456	!item->flag [FLAG_ALIVE] && !item->invisible && (who->is_player () || item->weight < who->weight / 3));
2639	}	2457	}
2640
2641		2458
2642	/*	2459	/*
2643	* create clone from object to another	2460	* create clone from object to another
2644	*/	2461	*/
2645	object *	2462	object *
2646	object_create_clone (object *asrc)	2463	object::deep_clone ()
2647	{	2464	{
2648	object *	2465	assert (("deep_clone called on non-head object", is_head ()));
2649	dst = NULL, *tmp, *src, *part, *prev, *item;
2650		2466
2651	if (!asrc)	2467	object *dst = clone ();
2652	return NULL;
2653	src = asrc;
2654	if (src->head)
2655	src = src->head;
2656		2468
2657	prev = NULL;	2469	object *prev = dst;
2658	for (part = src; part; part = part->more)	2470	for (object *part = this->more; part; part = part->more)
2659	{	2471	{
2660	tmp = get_object ();	2472	object *tmp = part->clone ();
2661	copy_object (part, tmp);
2662	tmp->x -= src->x;
2663	tmp->y -= src->y;
2664	if (!part->head)
2665	{
2666	dst = tmp;
2667	tmp->head = NULL;
2668	}
2669	else
2670	{
2671	tmp->head = dst;	2473	tmp->head = dst;
2672	}
2673	tmp->more = NULL;
2674	if (prev)
2675	prev->more = tmp;	2474	prev->more = tmp;
2676	prev = tmp;	2475	prev = tmp;
2677	}	2476	}
2678		2477
2679	/*** copy inventory ***/
2680	for (item = src->inv; item; item = item->below)	2478	for (object *item = inv; item; item = item->below)
2681	{	2479	insert_ob_in_ob (item->deep_clone (), dst);
2682	(void) insert_ob_in_ob (object_create_clone (item), dst);
2683	}
2684		2480
2685	return dst;	2481	return dst;
2686	}
2687
2688	/* return true if the object was destroyed, 0 otherwise */
2689	int
2690	was_destroyed (const object *op, tag_t old_tag)
2691	{
2692	/* checking for FLAG_FREED isn't necessary, but makes this function more
2693	* robust */
2694	return op->count != old_tag || QUERY_FLAG (op, FLAG_FREED);
2695	}
2696
2697	/* GROS - Creates an object using a string representing its content. */
2698
2699	/* Basically, we save the content of the string to a temp file, then call */
2700
2701	/* load_object on it. I admit it is a highly inefficient way to make things, */
2702
2703	/* but it was simple to make and allows reusing the load_object function. */
2704
2705	/* Remember not to use load_object_str in a time-critical situation. */
2706
2707	/* Also remember that multiparts objects are not supported for now. */
2708
2709	object *
2710	load_object_str (const char *obstr)
2711	{
2712	object *
2713	op;
2714	char
2715	filename[MAX_BUF];
2716
2717	sprintf (filename, "%s/cfloadobstr2044", settings.tmpdir);
2718
2719	FILE *
2720	tempfile = fopen (filename, "w");
2721
2722	if (tempfile == NULL)
2723	{
2724	LOG (llevError, "Error - Unable to access load object temp file\n");
2725	return NULL;
2726	}
2727
2728	fprintf (tempfile, obstr);
2729	fclose (tempfile);
2730
2731	op = get_object ();
2732
2733	object_thawer thawer (filename);
2734
2735	if (thawer)
2736	load_object (thawer, op, 0);
2737
2738	LOG (llevDebug, " load str completed, object=%s\n", &op->name);
2739	CLEAR_FLAG (op, FLAG_REMOVED);
2740
2741	return op;
2742	}	2482	}
2743		2483
2744	/* This returns the first object in who's inventory that	2484	/* This returns the first object in who's inventory that
2745	* has the same type and subtype match.	2485	* has the same type and subtype match.
2746	* returns NULL if no match.	2486	* returns NULL if no match.
2747	*/	2487	*/
2748	object *	2488	object *
2749	find_obj_by_type_subtype (const object *who, int type, int subtype)	2489	find_obj_by_type_subtype (const object *who, int type, int subtype)
2750	{	2490	{
2751	object *
2752	tmp;
2753
2754	for (tmp = who->inv; tmp; tmp = tmp->below)	2491	for (object *tmp = who->inv; tmp; tmp = tmp->below)
2755	if (tmp->type == type && tmp->subtype == subtype)	2492	if (tmp->type == type && tmp->subtype == subtype)
2756	return tmp;	2493	return tmp;
2757		2494
2758	return NULL;
2759	}
2760
2761	/* If ob has a field named key, return the link from the list,
2762	* otherwise return NULL.
2763	*
2764	* key must be a passed in shared string - otherwise, this won't
2765	* do the desired thing.
2766	*/
2767	key_value *
2768	get_ob_key_link (const object *ob, const char *key)
2769	{
2770	key_value *
2771	link;
2772
2773	for (link = ob->key_values; link != NULL; link = link->next)
2774	{
2775	if (link->key == key)
2776	{
2777	return link;
2778	}
2779	}
2780
2781	return NULL;
2782	}
2783
2784	/*
2785	* Returns the value of op has an extra_field for key, or NULL.
2786	*
2787	* The argument doesn't need to be a shared string.
2788	*
2789	* The returned string is shared.
2790	*/
2791	const char *
2792	get_ob_key_value (const object *op, const char *const key)
2793	{
2794	key_value *link;
2795	shstr_cmp canonical_key (key);
2796
2797	if (!canonical_key)
2798	{
2799	/* 1. There being a field named key on any object
2800	* implies there'd be a shared string to find.
2801	* 2. Since there isn't, no object has this field.
2802	* 3. Therefore, *this* object doesn't have this field.
2803	*/
2804	return 0;
2805	}
2806
2807	/* This is copied from get_ob_key_link() above -
2808	* only 4 lines, and saves the function call overhead.
2809	*/
2810	for (link = op->key_values; link; link = link->next)
2811	if (link->key == canonical_key)
2812	return link->value;
2813
2814	return 0;	2495	return 0;
2815	}	2496	}
2816		2497
2817		2498	shstr_tmp
2818	/*	2499	object::kv_get (shstr_tmp key) const
2819	* Updates the canonical_key in op to value.
2820	*
2821	* canonical_key is a shared string (value doesn't have to be).
2822	*
2823	* Unless add_key is TRUE, it won't add fields, only change the value of existing
2824	* keys.
2825	*
2826	* Returns TRUE on success.
2827	*/
2828	int
2829	set_ob_key_value_s (object *op, const shstr & canonical_key, const char *value, int add_key)
2830	{	2500	{
2831	key_value *	2501	for (key_value *kv = key_values; kv; kv = kv->next)
2832	field = NULL, *last = NULL;	2502	if (kv->key == key)
		2503	return kv->value;
2833		2504
2834	for (field = op->key_values; field != NULL; field = field->next)	2505	return shstr ();
2835	{	2506	}
2836	if (field->key != canonical_key)	2507
		2508	void
		2509	object::kv_set (shstr_tmp key, shstr_tmp value)
		2510	{
		2511	for (key_value *kv = key_values; kv; kv = kv->next)
		2512	if (kv->key == key)
2837	{	2513	{
2838	last = field;	2514	kv->value = value;
2839	continue;	2515	return;
2840	}	2516	}
2841		2517
2842	if (value)	2518	key_value *kv = new key_value;
2843	field->value = value;	2519
2844	else	2520	kv->next = key_values;
		2521	kv->key = key;
		2522	kv->value = value;
		2523
		2524	key_values = kv;
		2525	}
		2526
		2527	void
		2528	object::kv_del (shstr_tmp key)
		2529	{
		2530	for (key_value **kvp = &key_values; *kvp; kvp = &(*kvp)->next)
		2531	if ((*kvp)->key == key)
2845	{	2532	{
2846	/* Basically, if the archetype has this key set,	2533	key_value *kv = *kvp;
2847	* we need to store the null value so when we save	2534	*kvp = (*kvp)->next;
2848	* it, we save the empty value so that when we load,	2535	delete kv;
2849	* we get this value back again.	2536	return;
2850	*/
2851	if (get_ob_key_link (&op->arch->clone, canonical_key))
2852	field->value = 0;
2853	else
2854	{
2855	if (last)
2856	last->next = field->next;
2857	else
2858	op->key_values = field->next;
2859
2860	delete field;
2861	}
2862	}	2537	}
2863	return TRUE;
2864	}
2865	/* IF we get here, key doesn't exist */
2866
2867	/* No field, we'll have to add it. */
2868
2869	if (!add_key)
2870	{
2871	return FALSE;
2872	}
2873	/* There isn't any good reason to store a null
2874	* value in the key/value list. If the archetype has
2875	* this key, then we should also have it, so shouldn't
2876	* be here. If user wants to store empty strings,
2877	* should pass in ""
2878	*/
2879	if (value == NULL)
2880	return TRUE;
2881
2882	field = new key_value;
2883
2884	field->key = canonical_key;
2885	field->value = value;
2886	/* Usual prepend-addition. */
2887	field->next = op->key_values;
2888	op->key_values = field;
2889
2890	return TRUE;
2891	}
2892
2893	/*
2894	* Updates the key in op to value.
2895	*
2896	* If add_key is FALSE, this will only update existing keys,
2897	* and not add new ones.
2898	* In general, should be little reason FALSE is ever passed in for add_key
2899	*
2900	* Returns TRUE on success.
2901	*/
2902	int
2903	set_ob_key_value (object *op, const char *key, const char *value, int add_key)
2904	{
2905	shstr key_ (key);
2906
2907	return set_ob_key_value_s (op, key_, value, add_key);
2908	}	2538	}
2909		2539
2910	object::depth_iterator::depth_iterator (object *container)	2540	object::depth_iterator::depth_iterator (object *container)
2911	: iterator_base (container)	2541	: iterator_base (container)
2912	{	2542	{
…		…
2926	}	2556	}
2927	else	2557	else
2928	item = item->env;	2558	item = item->env;
2929	}	2559	}
2930		2560
		2561	const char *
		2562	object::flag_desc (char *desc, int len) const
		2563	{
		2564	char *p = desc;
		2565	bool first = true;
		2566
		2567	*p = 0;
		2568
		2569	for (int i = 0; i < NUM_FLAGS; i++)
		2570	{
		2571	if (len <= 10) // magic constant!
		2572	{
		2573	snprintf (p, len, ",...");
		2574	break;
		2575	}
		2576
		2577	if (flag [i])
		2578	{
		2579	int cnt = snprintf (p, len, "%s%d", first ? "" : ",", i);
		2580	len -= cnt;
		2581	p += cnt;
		2582	first = false;
		2583	}
		2584	}
		2585
		2586	return desc;
		2587	}
		2588
2931	// return a suitable string describing an objetc in enough detail to find it	2589	// return a suitable string describing an object in enough detail to find it
2932	const char *	2590	const char *
2933	object::debug_desc (char *info) const	2591	object::debug_desc (char *info) const
2934	{	2592	{
		2593	char flagdesc[512];
2935	char info2[256 * 3];	2594	char info2[256 * 4];
2936	char *p = info;	2595	char *p = info;
2937		2596
2938	p += snprintf (p, 256, "%d=\"%s%s%s\"",	2597	p += snprintf (p, 512, "{cnt:%d,uuid:%s,name:\"%s\"%s%s%s,flags:[%s],type:%d}",
2939	count,	2598	count,
		2599	uuid.c_str (),
2940	&name,	2600	&name,
2941	title ? " " : "",	2601	title ? ",title:\"" : "",
2942	title ? (const char *)title : "");	2602	title ? (const char *)title : "",
		2603	title ? "\"" : "",
		2604	flag_desc (flagdesc, 512), type);
2943		2605
2944	if (env)	2606	if (!flag[FLAG_REMOVED] && env)
2945	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));	2607	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));
2946		2608
2947	if (map)	2609	if (map)
2948	p += snprintf (p, 256, "(on %s@%d+%d)", map->path, x, y);	2610	p += snprintf (p, 256, "(on %s@%d+%d)", &map->path, x, y);
2949		2611
2950	return info;	2612	return info;
2951	}	2613	}
2952		2614
2953	const char *	2615	const char *
2954	object::debug_desc () const	2616	object::debug_desc () const
2955	{	2617	{
2956	static char info[256 * 3];	2618	static char info[3][256 * 4];
		2619	static int info_idx;
		2620
2957	return debug_desc (info);	2621	return debug_desc (info [++info_idx % 3]);
2958	}	2622	}
2959		2623
		2624	struct region *
		2625	object::region () const
		2626	{
		2627	return map ? map->region (x, y)
		2628	: region::default_region ();
		2629	}
		2630
		2631	void
		2632	object::open_container (object *new_container)
		2633	{
		2634	if (container == new_container)
		2635	return;
		2636
		2637	object *old_container = container;
		2638
		2639	if (old_container)
		2640	{
		2641	if (INVOKE_OBJECT (CLOSE, old_container, ARG_OBJECT (this)))
		2642	return;
		2643
		2644	#if 0
		2645	// remove the "Close old_container" object.
		2646	if (object *closer = old_container->inv)
		2647	if (closer->type == CLOSE_CON)
		2648	closer->destroy ();
		2649	#endif
		2650
		2651	// make sure the container is available
		2652	esrv_send_item (this, old_container);
		2653
		2654	old_container->flag [FLAG_APPLIED] = false;
		2655	container = 0;
		2656
		2657	// client needs item update to make it work, client bug requires this to be separate
		2658	esrv_update_item (UPD_FLAGS, this, old_container);
		2659
		2660	new_draw_info_format (NDI_UNIQUE, 0, this, "You close %s.", old_container->query_name ());
		2661	play_sound (sound_find ("chest_close"));
		2662	}
		2663
		2664	if (new_container)
		2665	{
		2666	if (INVOKE_OBJECT (OPEN, new_container, ARG_OBJECT (this)))
		2667	return;
		2668
		2669	// TODO: this does not seem to serve any purpose anymore?
		2670	#if 0
		2671	// insert the "Close Container" object.
		2672	if (archetype *closer = new_container->other_arch)
		2673	{
		2674	object *closer = new_container->other_arch->instance ();
		2675	closer->flag [FLAG_NO_MAP_SAVE] = 1;
		2676	new_container->insert (closer);
		2677	}
		2678	#endif
		2679
		2680	new_draw_info_format (NDI_UNIQUE, 0, this, "You open %s.", new_container->query_name ());
		2681
		2682	// make sure the container is available, client bug requires this to be separate
		2683	esrv_send_item (this, new_container);
		2684
		2685	new_container->flag [FLAG_APPLIED] = true;
		2686	container = new_container;
		2687
		2688	// client needs flag change
		2689	esrv_update_item (UPD_FLAGS, this, new_container);
		2690	esrv_send_inventory (this, new_container);
		2691	play_sound (sound_find ("chest_open"));
		2692	}
		2693	// else if (!old_container->env && contr && contr->ns)
		2694	// contr->ns->floorbox_reset ();
		2695	}
		2696
		2697	object *
		2698	object::force_find (shstr_tmp name)
		2699	{
		2700	/* cycle through his inventory to look for the MARK we want to
		2701	* place
		2702	*/
		2703	for (object *tmp = inv; tmp; tmp = tmp->below)
		2704	if (tmp->type == FORCE && tmp->slaying == name)
		2705	return splay (tmp);
		2706
		2707	return 0;
		2708	}
		2709
		2710	//-GPL
		2711
		2712	void
		2713	object::force_set_timer (int duration)
		2714	{
		2715	this->duration = 1;
		2716	this->speed_left = -1.f;
		2717
		2718	this->set_speed (duration ? 1.f / duration : 0.f);
		2719	}
		2720
		2721	object *
		2722	object::force_add (shstr_tmp name, int duration)
		2723	{
		2724	if (object *force = force_find (name))
		2725	force->destroy ();
		2726
		2727	object *force = get_archetype (FORCE_NAME);
		2728
		2729	force->slaying = name;
		2730	force->force_set_timer (duration);
		2731	force->flag [FLAG_APPLIED] = true;
		2732
		2733	return insert (force);
		2734	}
		2735
		2736	void
		2737	object::play_sound (faceidx sound) const
		2738	{
		2739	if (!sound)
		2740	return;
		2741
		2742	if (is_on_map ())
		2743	map->play_sound (sound, x, y);
		2744	else if (object *pl = in_player ())
		2745	pl->contr->play_sound (sound);
		2746	}
		2747
		2748	void
		2749	object::say_msg (const char *msg) const
		2750	{
		2751	if (is_on_map ())
		2752	map->say_msg (msg, x, y);
		2753	else if (object *pl = in_player ())
		2754	pl->contr->play_sound (sound);
		2755	}
		2756
		2757	void
		2758	object::make_noise ()
		2759	{
		2760	// we do not model noise in the map, so instead put
		2761	// a temporary light into the noise source
		2762	// could use the map instead, but that's less reliable for our
		2763	// goal, which is to make invisibility a bit harder to exploit
		2764
		2765	// currently only works sensibly for players
		2766	if (!is_player ())
		2767	return;
		2768
		2769	// find old force, or create new one
		2770	object *force = force_find (shstr_noise_force);
		2771
		2772	if (force)
		2773	force->speed_left = -1.f; // patch old speed up
		2774	else
		2775	{
		2776	force = archetype::get (shstr_noise_force);
		2777
		2778	force->slaying = shstr_noise_force;
		2779	force->stats.food = 1;
		2780	force->speed_left = -1.f;
		2781
		2782	force->set_speed (1.f / 4.f);
		2783	force->flag [FLAG_IS_USED_UP] = true;
		2784	force->flag [FLAG_APPLIED] = true;
		2785
		2786	insert (force);
		2787	}
		2788	}
		2789
		2790	void object::change_move_type (MoveType mt)
		2791	{
		2792	if (move_type == mt)
		2793	return;
		2794
		2795	if (is_on_map ())
		2796	{
		2797	// we are on the map, so handle move_on/off effects
		2798	remove ();
		2799	move_type = mt;
		2800	map->insert (this, x, y, this);
		2801	}
		2802	else
		2803	move_type = mt;
		2804	}
		2805
		2806	/* object should be a player.
		2807	* we return the object the player has marked with the 'mark' command
		2808	* below. If no match is found (or object has changed), we return
		2809	* NULL. We leave it up to the calling function to print messages if
		2810	* nothing is found.
		2811	*/
		2812	object *
		2813	object::mark () const
		2814	{
		2815	if (contr && contr->mark && contr->mark->env == this)
		2816	return contr->mark;
		2817	else
		2818	return 0;
		2819	}
		2820

Diff Legend

–	Removed lines
+	Added lines
<	Changed lines
>	Changed lines