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Comparing deliantra/server/common/object.C (file contents):
Revision 1.19 by root, Fri Sep 8 17:14:07 2006 UTC vs.
Revision 1.348 by root, Sat May 7 20:03:27 2011 UTC

1	/*	1	/*
2	* static char *rcsid_object_c =	2	* This file is part of Deliantra, the Roguelike Realtime MMORPG.
3	* "$Id: object.C,v 1.19 2006/09/08 17:14:07 root Exp $";	3	*
4	*/	4	* Copyright (©) 2005,2006,2007,2008,2009,2010,2011 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
5
6	/*
7	CrossFire, A Multiplayer game for X-windows
8
9	Copyright (C) 2001 Mark Wedel & Crossfire Development Team	5	* Copyright (©) 2001 Mark Wedel & Crossfire Development Team
10	Copyright (C) 1992 Frank Tore Johansen	6	* Copyright (©) 1992 Frank Tore Johansen
11		7	*
12	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
13	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
14	the Free Software Foundation; either version 2 of the License, or	10	* Free Software Foundation, either version 3 of the License, or (at your
15	(at your option) any later version.	11	* option) any later version.
16		12	*
17	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,
18	but WITHOUT ANY WARRANTY; without even the implied warranty of	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
19	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20	GNU General Public License for more details.	16	* GNU General Public License for more details.
21		17	*
22	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
23	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
24	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.	20	* <http://www.gnu.org/licenses/>.
25		21	*
26	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>
27	*/	23	*/
28		24
29	/* Eneq(@csd.uu.se): Added weight-modifiers in environment of objects.
30	sub/add_weight will transcend the environment updating the carrying
31	variable. */
32	#include <global.h>	25	#include <global.h>
33	#ifndef WIN32 /* ---win32 exclude headers */
34	#include <stdio.h>	26	#include <stdio.h>
35	#include <sys/types.h>	27	#include <sys/types.h>
36	#include <sys/uio.h>	28	#include <sys/uio.h>
37	#endif /* win32 */
38	#include <object.h>	29	#include <object.h>
39	#include <funcpoint.h>	30	#include <sproto.h>
40	#include <skills.h>
41	#include <loader.h>
42	int nrofallocobjects = 0;
43		31
44	object *objects; /* Pointer to the list of used objects */	32	#include <bitset>
45	object *active_objects; /* List of active objects that need to be processed */
46		33
		34	UUID UUID::cur;
		35	static uint64_t seq_next_save;
		36	static const uint64 UUID_GAP = 1<<19;
		37	uint32_t mapspace::smellcount = 10000;
		38
		39	objectvec objects;
		40	activevec actives;
		41
		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
47	short freearr_x[SIZEOFFREE]=	50	short freearr_x[SIZEOFFREE] = {
48	{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,	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,
49	0,1,2,3,3,3,3,3,3,3,2,1,0,-1,-2,-3,-3,-3,-3,-3,-3,-3,-2,-1};	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
		55	};
50	short freearr_y[SIZEOFFREE]=	56	short freearr_y[SIZEOFFREE] = {
51	{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,	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,
52	-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
53	int maxfree[SIZEOFFREE]=	61	};
54	{0,9,10,13,14,17,18,21,22,25,26,27,30,31,32,33,36,37,39,39,42,43,44,45,
55	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};
56	int freedir[SIZEOFFREE]= {	62	int freedir[SIZEOFFREE] = {
57	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,
58	1,2,2,2,2,2,3,4,4,4,4,4,5,6,6,6,6,6,7,8,8,8,8,8};	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,
		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
		67	};
59		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
		95	static void
		96	write_uuid (uval64 skip, bool sync)
		97	{
		98	CALL_BEGIN (2);
		99	CALL_ARG_SV (newSVval64 (skip));
		100	CALL_ARG_SV (boolSV (sync));
		101	CALL_CALL ("cf::write_uuid", G_DISCARD);
		102	CALL_END;
		103	}
		104
		105	static void
		106	read_uuid ()
		107	{
		108	char filename[MAX_BUF];
		109
		110	sprintf (filename, "%s/uuid", settings.localdir);
		111
		112	seq_next_save = 0;
		113
		114	FILE *fp;
		115
		116	if (!(fp = fopen (filename, "r")))
		117	{
		118	if (errno == ENOENT)
		119	{
		120	LOG (llevInfo, "RESET uid to 1\n");
		121	UUID::cur.seq = 0;
		122	write_uuid (UUID_GAP, true);
		123	return;
		124	}
		125
		126	LOG (llevError, "FATAL: cannot open %s for reading!\n", filename);
		127	_exit (1);
		128	}
		129
		130	char buf [UUID::MAX_LEN];
		131	buf[0] = 0;
		132	fgets (buf, sizeof (buf), fp);
		133
		134	if (!UUID::cur.parse (buf))
		135	{
		136	LOG (llevError, "FATAL: error reading uid from %s (%s)!\n", filename, buf);
		137	_exit (1);
		138	}
		139
		140	LOG (llevDebug, "read UUID: %s\n", UUID::cur.c_str ());
		141
		142	write_uuid (UUID_GAP, true);
		143	fclose (fp);
		144	}
		145
		146	UUID
		147	UUID::gen ()
		148	{
		149	UUID uid;
		150
		151	uid.seq = ++cur.seq;
		152
		153	if (expect_false (cur.seq >= seq_next_save))
		154	{
		155	seq_next_save = UUID::cur.seq + (UUID_GAP >> 1);
		156	write_uuid (UUID_GAP, false);
		157	}
		158
		159
		160	return uid;
		161	}
		162
		163	void
		164	UUID::init ()
		165	{
		166	read_uuid ();
		167	}
		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	}
60		233
61	/* 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. */
		235	static bool
62	static int compare_ob_value_lists_one(const object * wants, const object * has) {	236	compare_ob_value_lists_one (const object *wants, const object *has)
63	key_value * wants_field;	237	{
64
65	/* 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
66	* 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
67	* different structure or at least keep the lists sorted...	240	* different structure or at least keep the lists sorted...
68	*/	241	*/
69		242
70	/* For each field in wants, */	243	/* For each field in wants, */
71	for (wants_field = wants->key_values; wants_field != NULL; wants_field = wants_field->next) {	244	for (key_value *kv = wants->kv.first; kv; kv = kv->next)
72	key_value * has_field;	245	if (has->kv.get (kv->key) != kv->value)
73		246	return false;
74	/* Look for a field in has with the same key. */	247
75	has_field = get_ob_key_link(has, wants_field->key);
76
77	if (has_field == NULL) {
78	/* No field with that name. */
79	return FALSE;
80	}
81
82	/* Found the matching field. */
83	if (has_field->value != wants_field->value) {
84	/* Values don't match, so this half of the comparison is false. */
85	return FALSE;
86	}
87
88	/* If we get here, we found a match. Now for the next field in wants. */
89	}
90
91	/* 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. */
92	return TRUE;	249	return true;
93	}	250	}
94		251
95	/* Returns TRUE if ob1 has the same key_values as ob2. */	252	/* Returns TRUE if ob1 has the same key_values as ob2. */
		253	static bool
96	static int compare_ob_value_lists(const object * ob1, const object * ob2) {	254	compare_ob_value_lists (const object *ob1, const object *ob2)
		255	{
97	/* 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,
98	* so we need to run the comparison *twice*. :(	257	* so we need to run the comparison *twice*. :(
99	*/	258	*/
100	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);
101	}	261	}
102		262
103	/* 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
104	* they can be merged together.	264	* they can be merged together.
105	*	265	*
106	* 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
107	* replaces - this is mostly for clarity - a decent compiler should hopefully	267	* replaces - this is mostly for clarity - a decent compiler should hopefully
108	* reduce this to the same efficiency.	268	* reduce this to the same efficiency.
109	*	269	*
110	* Check nrof variable *before* calling CAN_MERGE()	270	* Check nrof variable *before* calling can_merge()
111	*	271	*
112	* Improvements made with merge: Better checking on potion, and also	272	* Improvements made with merge: Better checking on potion, and also
113	* check weight	273	* check weight
114	*/	274	*/
115
116	bool
117	object::can_merge (object *ob1, object *ob2)	275	bool object::can_merge_slow (object *ob1, object *ob2)
118	{	276	{
119	/* A couple quicksanity checks */	277	/* A couple quick sanity checks */
120	if ((ob1 == ob2) || (ob1->type != ob2->type))	278	if (ob1 == ob2
		279	|| ob1->type != ob2->type
		280	|| ob1->value != ob2->value
		281	|| ob1->name != ob2->name
		282	|| ob1->custom_name != ob2->custom_name
		283	|| fabs (ob1->speed - ob2->speed) >= MIN_ACTIVE_SPEED)
121	return 0;	284	return 0;
122		285
123	if (ob1->speed != ob2->speed)	286	/* Do not merge objects if nrof would overflow, assume nrof
		287	* is always 0 .. 2**31-1 */
		288	if (ob1->nrof > 0x7fffffff - ob2->nrof)
124	return 0;	289	return 0;
125		290
126	/* Do not merge objects if nrof would overflow. We use 1UL<<31 since that
127	* value could not be stored in a sint32 (which unfortunately sometimes is
128	* used to store nrof).
129	*/
130	if (ob1->nrof + ob2->nrof >= 1UL << 31)
131	return 0;
132
133	/* If the objects have been identified, set the BEEN_APPLIED flag.	291	/* If the objects have been identified, set the BEEN_APPLIED flag.
134	* This is to the comparison of the flags below will be OK. We	292	* This is to the comparison of the flags below will be OK. We
135	* just can't ignore the been applied or identified flags, as they	293	* just can't ignore the been applied or identified flags, as they
136	* are not equal - just if it has been identified, the been_applied	294	* are not equal - just if it has been identified, the been_applied
137	* flags lose any meaning.	295	* flags lose any meaning.
138	*/	296	*/
139	if (QUERY_FLAG (ob1, FLAG_IDENTIFIED))	297	if (ob1->flag [FLAG_IDENTIFIED])
140	SET_FLAG (ob1, FLAG_BEEN_APPLIED);	298	ob1->set_flag (FLAG_BEEN_APPLIED);
141		299
142	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))	300	if (ob2->flag [FLAG_IDENTIFIED])
143	SET_FLAG (ob2, FLAG_BEEN_APPLIED);	301	ob2->set_flag (FLAG_BEEN_APPLIED);
144		302
145		303	if (ob1->arch->archname != ob2->arch->archname
146	/* the 0x400000 on flags2 is FLAG_INV_LOCK. I don't think something
147	* being locked in inventory should prevent merging.
148	* 0x4 in flags3 is CLIENT_SENT
149	*/
150	if ((ob1->arch != ob2->arch) ||
151	(ob1->flags[0] != ob2->flags[0]) ||
152	(ob1->flags[1] != ob2->flags[1]) ||
153	((ob1->flags[2] & ~0x400000) != (ob2->flags[2] & ~0x400000)) ||
154	((ob1->flags[3] & ~0x4) != (ob2->flags[3] & ~0x4)) ||
155	(ob1->name != ob2->name) ||	304	|| ob1->name != ob2->name
156	(ob1->title != ob2->title) ||	305	|| ob1->title != ob2->title
157	(ob1->msg != ob2->msg) ||	306	|| ob1->msg != ob2->msg
158	(ob1->weight != ob2->weight) ||	307	|| ob1->weight != ob2->weight
159	(memcmp (&ob1->resist, &ob2->resist, sizeof (ob1->resist)) != 0) ||
160	(memcmp (&ob1->stats, &ob2->stats, sizeof (ob1->stats)) != 0) ||
161	(ob1->attacktype != ob2->attacktype) ||	308	|| ob1->attacktype != ob2->attacktype
162	(ob1->magic != ob2->magic) ||	309	|| ob1->magic != ob2->magic
163	(ob1->slaying != ob2->slaying) ||	310	|| ob1->slaying != ob2->slaying
164	(ob1->skill != ob2->skill) ||	311	|| ob1->skill != ob2->skill
165	(ob1->value != ob2->value) ||	312	|| ob1->value != ob2->value
166	(ob1->animation_id != ob2->animation_id) ||	313	|| ob1->animation_id != ob2->animation_id
		314	|| (ob1->face != ob2->face && !ob1->animation_id) // face and animation are dependend on each other
167	(ob1->client_type != ob2->client_type) ||	315	|| ob1->client_type != ob2->client_type
168	(ob1->materialname != ob2->materialname) ||	316	|| ob1->material != ob2->material
169	(ob1->lore != ob2->lore) ||	317	|| ob1->lore != ob2->lore
170	(ob1->subtype != ob2->subtype) ||	318	|| ob1->subtype != ob2->subtype
171	(ob1->move_type != ob2->move_type) ||	319	|| ob1->move_type != ob2->move_type
172	(ob1->move_block != ob2->move_block) ||	320	|| ob1->move_block != ob2->move_block
173	(ob1->move_allow != ob2->move_allow) ||	321	|| ob1->move_allow != ob2->move_allow
174	(ob1->move_on != ob2->move_on) ||	322	|| ob1->move_on != ob2->move_on
175	(ob1->move_off != ob2->move_off) ||	323	|| ob1->move_off != ob2->move_off
176	(ob1->move_slow != ob2->move_slow) ||	324	|| ob1->move_slow != ob2->move_slow
177	(ob1->move_slow_penalty != ob2->move_slow_penalty))	325	|| fabs (ob1->move_slow_penalty - ob2->move_slow_penalty) >= (1.f / 1024.f)
		326	|| memcmp (&ob1->resist, &ob2->resist, sizeof (ob1->resist))
		327	|| memcmp (&ob1->stats , &ob2->stats , sizeof (ob1->stats)))
178	return 0;	328	return 0;
179		329
		330	if ((ob1->flag ^ ob2->flag)
		331	.reset (FLAG_INV_LOCKED)
		332	.reset (FLAG_REMOVED)
		333	.any ())
		334	return 0;
		335
180	/* This is really a spellbook check - really, we should	336	/* This is really a spellbook check - we should in general
181	* check all objects in the inventory.	337	* not merge objects with real inventories, as splitting them
		338	* is hard.
182	*/	339	*/
183	if (ob1->inv || ob2->inv)	340	if (ob1->inv || ob2->inv)
184	{	341	{
185	/* if one object has inventory but the other doesn't, not equiv */
186	if ((ob1->inv && !ob2->inv) || (ob2->inv && !ob1->inv))
187	return 0;
188
189	/* Now check to see if the two inventory objects could merge */
190	if (!CAN_MERGE (ob1->inv, ob2->inv))	342	if (!(ob1->inv && ob2->inv))
191	return 0;	343	return 0; /* inventories differ in length */
		344
		345	if (ob1->inv->below || ob2->inv->below)
		346	return 0; /* more than one object in inv */
		347
		348	if (!object::can_merge (ob1->inv, ob2->inv))
		349	return 0; /* inventory objects differ */
192		350
193	/* inventory ok - still need to check rest of this object to see	351	/* inventory ok - still need to check rest of this object to see
194	* if it is valid.	352	* if it is valid.
195	*/	353	*/
196	}	354	}
197		355
198	/* Don't merge objects that are applied. With the new 'body' code,	356	/* Don't merge objects that are applied. With the new 'body' code,
199	* it is possible for most any character to have more than one of	357	* it is possible for most any character to have more than one of
200	* some items equipped, and we don't want those to merge.	358	* some items equipped, and we don't want those to merge.
201	*/	359	*/
202	if (QUERY_FLAG (ob1, FLAG_APPLIED) || QUERY_FLAG (ob2, FLAG_APPLIED))	360	if (ob1->flag [FLAG_APPLIED] || ob2->flag [FLAG_APPLIED])
203	return 0;	361	return 0;
204		362
205	/* Note sure why the following is the case - either the object has to	363	/* Note sure why the following is the case - either the object has to
206	* be animated or have a very low speed. Is this an attempted monster	364	* be animated or have a very low speed. Is this an attempted monster
207	* check?	365	* check?
208	*/	366	*/
209	if (!QUERY_FLAG (ob1, FLAG_ANIMATE)	367	if (!ob1->flag [FLAG_ANIMATE] && ob1->has_active_speed ())
210	&& FABS ((ob1)->speed) > MIN_ACTIVE_SPEED)
211	return 0;	368	return 0;
212		369
213	switch (ob1->type)	370	switch (ob1->type)
214	{	371	{
215	case SCROLL:	372	case SCROLL:
216	if (ob1->level != ob2->level)	373	if (ob1->level != ob2->level)
217	return 0;	374	return 0;
218	break;	375	break;
219	}	376	}
220		377
221	if (ob1->key_values != NULL || ob2->key_values != NULL)	378	if (!ob1->kv.empty () || !ob2->kv.empty ())
222	{	379	{
223	/* At least one of these has key_values. */	380	/* At least one of these has key_values. */
224	if ((ob1->key_values == NULL) != (ob2->key_values == NULL))	381	if (ob1->kv.empty () != ob2->kv.empty ())
225	/* One has fields, but the other one doesn't. */	382	return 0; /* One has fields, but the other one doesn't. */
226	return 0;	383
227	else if (!compare_ob_value_lists (ob1, ob2))	384	if (!compare_ob_value_lists (ob1, ob2))
228	return 0;	385	return 0;
229	}	386	}
230		387
231	//TODO: generate an event or call into perl for additional checks
232	if (ob1->self || ob2->self)	388	if (ob1->self || ob2->self)
233	{	389	{
234	ob1->optimise ();	390	ob1->optimise ();
235	ob2->optimise ();	391	ob2->optimise ();
236		392
237	if (ob1->self || ob2->self)	393	if (ob1->self || ob2->self)
238	return 0;	394	{
		395	int k1 = ob1->self ? HvTOTALKEYS (ob1->self) : 0;
		396	int k2 = ob2->self ? HvTOTALKEYS (ob2->self) : 0;
		397
		398	if (k1 != k2)
		399	return 0;
		400
		401	if (k1 == 0)
		402	return 1;
		403
		404	if (!cfperl_can_merge (ob1, ob2))
		405	return 0;
		406	}
239	}	407	}
240		408
241	/* Everything passes, must be OK. */	409	/* Everything passes, must be OK. */
242	return 1;	410	return 1;
243	}	411	}
		412
		413	// find player who can see this object
		414	object *
		415	object::visible_to () const
		416	{
		417	if (client_visible () && !flag [FLAG_REMOVED])
		418	{
		419	// see if we are in a container of sorts
		420	if (env)
		421	{
		422	// the player inventory itself is always visible
		423	if (env->is_player ())
		424	return env;
		425
		426	// else a player could have our env open
		427	object *envest = env->outer_env_or_self ();
		428
		429	// the player itself is always on a map, so we will find him here
		430	// even if our inv is in a player.
		431	if (envest->is_on_map ())
		432	if (object *pl = envest->ms ().player ())
		433	if (pl->container_ () == env)
		434	return pl;
		435	}
		436	else
		437	{
		438	// maybe there is a player standing on the same mapspace
		439	// this will catch the case where "this" is a player
		440	if (object *pl = ms ().player ())
		441	if ((pl->contr->ns && !pl->container_ () && !pl->contr->ns->update_look)
		442	|| pl->container_ () == this)
		443	return pl;
		444	}
		445	}
		446
		447	return 0;
		448	}
		449
		450	// adjust weight per container type ("of holding")
		451	static uint32
		452	weight_adjust_for (object *op, uint32 weight)
		453	{
		454	return op->type == CONTAINER
		455	? weight - weight * op->stats.Str / 100
		456	: weight;
		457	}
		458
244	/*	459	/*
		460	* subtracts, then adds, the specified weight to an object,
		461	* and also updates how much the environment(s) is/are carrying.
		462	*/
		463	static void
		464	adjust_weight (object *op, sint32 sub, sint32 add)
		465	{
		466	while (op)
		467	{
		468	sint32 ocarrying = op->carrying;
		469
		470	op->carrying -= weight_adjust_for (op, sub);
		471	op->carrying += weight_adjust_for (op, add);
		472
		473	if (object *pl = op->visible_to ())
		474	if (pl != op) // player is handled lazily
		475	esrv_update_item (UPD_WEIGHT, pl, op);
		476
		477	sub = ocarrying;
		478	add = op->carrying;
		479
		480	op = op->env;
		481	}
		482	}
		483
		484	/*
245	* sum_weight() is a recursive function which calculates the weight	485	* this is a recursive function which calculates the weight
246	* an object is carrying. It goes through in figures out how much	486	* an object is carrying. It goes through op and figures out how much
247	* containers are carrying, and sums it up.	487	* containers are carrying, and sums it up.
248	*/	488	*/
249	signed long sum_weight(object *op) {	489	void
250	signed long sum;	490	object::update_weight ()
251	object *inv;	491	{
252	for(sum = 0, inv = op->inv; inv != NULL; inv = inv->below) {	492	sint32 sum = 0;
253	if (inv->inv)	493
254	sum_weight(inv);	494	for (object *op = inv; op; op = op->below)
255	sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1);	495	{
		496	op->update_weight ();
		497
		498	sum += weight_adjust_for (this, op->total_weight ());
256	}	499	}
257	if (op->type == CONTAINER && op->stats.Str)	500
258	sum = (sum * (100 - op->stats.Str))/100;	501	if (sum != carrying)
259	if(op->carrying != sum)	502	{
		503	if (carrying != sum && carrying)//D
		504	LOG (llevDebug, "updating carrying got %ld, expected %ld (%s)\n",
		505	(long long)sum, (long long)carrying, debug_desc ());
		506
260	op->carrying = sum;	507	carrying = sum;
261	return sum;
262	}
263		508
		509	if (object *pl = visible_to ())
		510	if (pl != this) // player is handled lazily
		511	esrv_update_item (UPD_WEIGHT, pl, this);
		512	}
		513	}
		514
264	/**	515	/*
265	* Return the outermost environment object for a given object.	516	* Used by: Server DM commands: dumpbelow, dump. Some error messages.
266	*/	517	*/
267		518	char *
268	object *object_get_env_recursive (object *op) {
269	while (op->env != NULL)
270	op = op->env;
271	return op;
272	}
273
274	/*
275	* Eneq(@csd.uu.se): Since we can have items buried in a character we need
276	* a better check. We basically keeping traversing up until we can't
277	* or find a player.
278	*/
279
280	object *is_player_inv (object *op) {
281	for (;op!=NULL&&op->type!=PLAYER; op=op->env)
282	if (op->env==op)
283	op->env = NULL;
284	return op;
285	}
286
287	/*
288	* Used by: Crossedit: dump. Server DM commands: dumpbelow, dump.
289	* Some error messages.
290	* The result of the dump is stored in the static global errmsg array.
291	*/
292
293	void dump_object2(object *op) {
294	errmsg[0] = 0;
295	return;
296	//TODO//D#d#
297	#if 0
298	char *cp;
299	/* object *tmp;*/
300
301	if(op->arch!=NULL) {
302	strcat(errmsg,"arch ");
303	strcat(errmsg,op->arch->name?op->arch->name:"(null)");
304	strcat(errmsg,"\n");
305	if((cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)
306	strcat(errmsg,cp);
307	#if 0
308	/* Don't dump player diffs - they are too long, mostly meaningless, and
309	* will overflow the buffer.
310	* Changed so that we don't dump inventory either. This may
311	* also overflow the buffer.
312	*/
313	if(op->type!=PLAYER && (cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)
314	strcat(errmsg,cp);
315	for (tmp=op->inv; tmp; tmp=tmp->below)
316	dump_object2(tmp);
317	#endif
318	strcat(errmsg,"end\n");
319	} else {
320	strcat(errmsg,"Object ");
321	if (op->name==NULL) strcat(errmsg, "(null)");
322	else strcat(errmsg,op->name);
323	strcat(errmsg,"\n");
324	#if 0
325	if((cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)
326	strcat(errmsg,cp);
327	for (tmp=op->inv; tmp; tmp=tmp->below)
328	dump_object2(tmp);
329	#endif
330	strcat(errmsg,"end\n");
331	}
332	#endif
333	}
334
335	/*
336	* Dumps an object. Returns output in the static global errmsg array.
337	*/
338
339	void dump_object(object *op) {	519	dump_object (object *op)
340	if(op==NULL) {	520	{
341	strcpy(errmsg,"[NULL pointer]");	521	if (!op)
342	return;	522	return strdup ("[NULLOBJ]");
343	}
344	errmsg[0]='\0';
345	dump_object2(op);
346	}
347		523
348	void dump_all_objects(void) {	524	object_freezer freezer;
349	object *op;	525	op->write (freezer);
350	for(op=objects;op!=NULL;op=op->next) {	526	return freezer.as_string ();
351	dump_object(op);
352	fprintf(logfile, "Object %d\n:%s\n", op->count, errmsg);
353	}
354	}	527	}
355		528
356	/*	529	char *
357	* get_nearest_part(multi-object, object 2) returns the part of the	530	object::as_string ()
358	* multi-object 1 which is closest to the second object.	531	{
359	* If it's not a multi-object, it is returned.	532	return dump_object (this);
360	*/
361
362	object *get_nearest_part(object *op, const object *pl) {
363	object *tmp,*closest;
364	int last_dist,i;
365	if(op->more==NULL)
366	return op;
367	for(last_dist=distance(op,pl),closest=op,tmp=op->more;tmp!=NULL;tmp=tmp->more)
368	if((i=distance(tmp,pl))<last_dist)
369	closest=tmp,last_dist=i;
370	return closest;
371	}	533	}
372		534
373	/*	535	/*
374	* Returns the object which has the count-variable equal to the argument.	536	* Returns the object which has the count-variable equal to the argument.
		537	* VERRRY slow.
375	*/	538	*/
376		539	object *
377	object *find_object(tag_t i) {	540	find_object (tag_t i)
378	object *op;	541	{
379	for(op=objects;op!=NULL;op=op->next)	542	for_all_objects (op)
380	if(op->count==i)	543	if (op->count == i)
381	break;
382	return op;	544	return op;
		545
		546	return 0;
		547	}
		548
		549	/*
		550	* Returns the object which has the uuid equal to the argument.
		551	* MOAR VERRRY slow.
		552	*/
		553
		554	object *
		555	find_object_uuid (UUID i)
		556	{
		557	for_all_objects (op)
		558	if (op->uuid == i)
		559	return op;
		560
		561	return 0;
383	}	562	}
384		563
385	/*	564	/*
386	* Returns the first object which has a name equal to the argument.	565	* Returns the first object which has a name equal to the argument.
387	* Used only by the patch command, but not all that useful.	566	* Used only by the patch command, but not all that useful.
388	* Enables features like "patch <name-of-other-player> food 999"	567	* Enables features like "patch <name-of-other-player> food 999"
389	*/	568	*/
390		569	object *
391	object *find_object_name(const char *str) {	570	find_object_name (const char *str)
392	const char *name = shstr::find (str);	571	{
393	object *op;	572	shstr_cmp str_ (str);
394	for(op=objects;op!=NULL;op=op->next)	573
		574	if (str_)
		575	for_all_objects (op)
395	if(&op->name == name)	576	if (op->name == str_)
396	break;	577	return op;
397		578
398	return op;	579	return 0;
399	}
400
401	void free_all_object_data ()
402	{
403	LOG (llevDebug, "%d allocated objects\n", nrofallocobjects);
404	}
405
406	/*
407	* Returns the object which this object marks as being the owner.
408	* A id-scheme is used to avoid pointing to objects which have been
409	* freed and are now reused. If this is detected, the owner is
410	* set to NULL, and NULL is returned.
411	* Changed 2004-02-12 - if the player is setting at the play again
412	* prompt, he is removed, and we don't want to treat him as an owner of
413	* anything, so check removed flag. I don't expect that this should break
414	* anything - once an object is removed, it is basically dead anyways.
415	*/
416
417	object *get_owner(object *op) {
418	if(op->owner==NULL)
419	return NULL;
420
421	if (!QUERY_FLAG(op->owner,FLAG_FREED) && !QUERY_FLAG(op->owner, FLAG_REMOVED) &&
422	op->owner->count==op->ownercount)
423	return op->owner;
424
425	op->owner=NULL;
426	op->ownercount=0;
427	return NULL;
428	}
429
430	void clear_owner(object *op)
431	{
432	if (!op) return;
433
434	if (op->owner && op->ownercount == op->owner->count)
435	op->owner->refcount--;
436
437	op->owner = NULL;
438	op->ownercount = 0;
439	}	580	}
440		581
441	/*	582	/*
442	* Sets the owner and sets the skill and exp pointers to owner's current	583	* Sets the owner and sets the skill and exp pointers to owner's current
443	* skill and experience objects.	584	* skill and experience objects.
		585	* ACTUALLY NO! investigate! TODO
444	*/	586	*/
445	void set_owner (object *op, object *owner)	587	void
		588	object::set_owner (object *owner)
446	{	589	{
447	if(owner==NULL||op==NULL)	590	// allow objects which own objects
		591	if (owner)
		592	while (owner->owner)
		593	owner = owner->owner;
		594
		595	if (flag [FLAG_FREED])
		596	{
		597	LOG (llevError | logBacktrace, "tried to set owner of %s to %s\n", debug_desc (), owner->debug_desc ());
448	return;	598	return;
449
450	/* next line added to allow objects which own objects */
451	/* Add a check for ownercounts in here, as I got into an endless loop
452	* with the fireball owning a poison cloud which then owned the
453	* fireball. I believe that was caused by one of the objects getting
454	* freed and then another object replacing it. Since the ownercounts
455	* didn't match, this check is valid and I believe that cause is valid.
456	*/
457	while (owner->owner && owner!=owner->owner &&
458	owner->ownercount==owner->owner->count) owner=owner->owner;
459
460	/* IF the owner still has an owner, we did not resolve to a final owner.
461	* so lets not add to that.
462	*/
463	if (owner->owner) return;
464
465	op->owner=owner;
466
467	op->ownercount=owner->count;
468	owner->refcount++;
469
470	}
471
472	/* Set the owner to clone's current owner and set the skill and experience
473	* objects to clone's objects (typically those objects that where the owner's
474	* current skill and experience objects at the time when clone's owner was
475	* set - not the owner's current skill and experience objects).
476	*
477	* Use this function if player created an object (e.g. fire bullet, swarm
478	* spell), and this object creates further objects whose kills should be
479	* accounted for the player's original skill, even if player has changed
480	* skills meanwhile.
481	*/
482	void copy_owner (object *op, object *clone)
483	{
484	object *owner = get_owner (clone);
485	if (owner == NULL) {
486	/* players don't have owners - they own themselves. Update
487	* as appropriate.
488	*/
489	if (clone->type == PLAYER) owner=clone;
490	else return;
491	}
492	set_owner(op, owner);
493
494	}
495
496	/* Zero the key_values on op, decrementing the shared-string
497	* refcounts and freeing the links.
498	*/
499	static void free_key_values(object * op)
500	{
501	for (key_value *i = op->key_values; i != 0; )
502	{	599	}
503	key_value *next = i->next;
504	delete i;
505	i = next;
506	}
507
508	op->key_values = 0;
509	}
510		600
511	void object::clear ()	601	this->owner = owner;
512	{
513	attachable_base::clear ();
514
515	free_key_values (this);
516
517	name = 0;
518	name_pl = 0;
519	title = 0;
520	race = 0;
521	slaying = 0;
522	skill = 0;
523	msg = 0;
524	lore = 0;
525	custom_name = 0;
526	materialname = 0;
527
528	memset (static_cast<object_pod *>(this), 0, sizeof (object_pod));
529
530	SET_FLAG (this, FLAG_REMOVED);
531	}	602	}
532		603
533	void object::clone (object *destination)
534	{
535	*(object_copy *)destination = *(object_copy *)this;
536	*(object_pod *)destination = *(object_pod *)this;
537
538	if (self || cb)
539	INVOKE_OBJECT (CLONE, this, ARG_OBJECT (destination));
540	}
541
542	/*	604	/*
543	* clear_object() frees everything allocated by an object, and also
544	* clears all variables and flags to default settings.
545	*/
546
547	void clear_object (object *op)
548	{
549	op->clear ();
550
551	op->contr = NULL;
552	op->below = NULL;
553	op->above = NULL;
554	op->inv = NULL;
555	op->container=NULL;
556	op->env=NULL;
557	op->more=NULL;
558	op->head=NULL;
559	op->map=NULL;
560	op->refcount=0;
561	op->active_next = NULL;
562	op->active_prev = NULL;
563	/* What is not cleared is next, prev, and count */
564
565	op->expmul = 1.0;
566	op->face = blank_face;
567	op->attacked_by_count = -1;
568
569	if (settings.casting_time)
570	op->casting_time = -1;
571	}
572
573	/*
574	* copy object first frees everything allocated by the second object,	605	* copy_to first frees everything allocated by the dst object,
575	* and then copies the contends of the first object into the second	606	* and then copies the contents of itself into the second
576	* object, allocating what needs to be allocated. Basically, any	607	* object, allocating what needs to be allocated. Basically, any
577	* data that is malloc'd needs to be re-malloc/copied. Otherwise,	608	* data that is malloc'd needs to be re-malloc/copied. Otherwise,
578	* if the first object is freed, the pointers in the new object	609	* if the first object is freed, the pointers in the new object
579	* will point at garbage.	610	* will point at garbage.
580	*/	611	*/
581		612	void
582	void copy_object (object *op2, object *op)	613	object::copy_to (object *dst)
583	{	614	{
584	bool is_freed = QUERY_FLAG (op, FLAG_FREED);	615	dst->remove ();
585	bool is_removed = QUERY_FLAG (op, FLAG_REMOVED);	616	*(object_copy *)dst = *this;
586		617
587	op2->clone (op);	618	// maybe move to object_copy?
		619	dst->kv = kv;
588		620
589	if (is_freed) SET_FLAG (op, FLAG_FREED);	621	dst->flag [FLAG_REMOVED] = true;
590	if (is_removed) SET_FLAG (op, FLAG_REMOVED);	622	dst->activate ();
591
592	if (op2->speed < 0)
593	op->speed_left = op2->speed_left - RANDOM() % 200 / 100.0;
594
595	/* Copy over key_values, if any. */
596	if (op2->key_values != NULL)
597	{
598	key_value *tail = NULL;
599	key_value *i;
600
601	op->key_values = NULL;
602
603	for (i = op2->key_values; i != NULL; i = i->next)
604	{
605	key_value *new_link = new key_value;
606
607	new_link->next = NULL;
608	new_link->key = i->key;
609	new_link->value = i->value;
610
611	/* Try and be clever here, too. */
612	if (op->key_values == NULL)
613	{
614	op->key_values = new_link;
615	tail = new_link;
616	}
617	else
618	{
619	tail->next = new_link;
620	tail = new_link;
621	}
622	}
623	}
624
625	update_ob_speed (op);
626	}	623	}
627		624
		625	void
		626	object::instantiate ()
		627	{
		628	if (!uuid.seq) // HACK
		629	uuid = UUID::gen ();
		630
		631	// TODO: unclean state changes, should not be done in copy_to AND instantiate
		632	if (flag [FLAG_RANDOM_SPEED] && speed)
		633	speed_left = - speed - rndm (); // TODO animation
		634	else
		635	speed_left = -1.;
		636
		637	/* copy the body_info to the body_used - this is only really
		638	* need for monsters, but doesn't hurt to do it for everything.
		639	* by doing so, when a monster is created, it has good starting
		640	* values for the body_used info, so when items are created
		641	* for it, they can be properly equipped.
		642	*/
		643	for (int i = NUM_BODY_LOCATIONS; i--; )
		644	slot[i].used = slot[i].info;
		645
		646	attachable::instantiate ();
		647	}
		648
		649	object *
628	object::object ()	650	object::clone ()
629	{	651	{
630	count = ++ob_count;	652	object *neu = create ();
		653	copy_to (neu);
631		654
632	next = objects;	655	// TODO: unclean state changes, should not be done in clone AND instantiate
		656	if (neu->flag [FLAG_RANDOM_SPEED] && neu->speed)
		657	neu->speed_left = - neu->speed - rndm (); // TODO animation
633		658
634	if (objects)	659	neu->map = map; // not copied by copy_to
635	objects->prev = this;	660	return neu;
636
637	objects = this;
638
639	SET_FLAG (this, FLAG_REMOVED);
640
641	expmul = 1.0;
642	face = blank_face;
643	attacked_by_count = -1;
644	}
645
646	object::~object ()
647	{
648	}	661	}
649		662
650	/*	663	/*
651	* If an object with the IS_TURNABLE() flag needs to be turned due	664	* If an object with the IS_TURNABLE() flag needs to be turned due
652	* to the closest player being on the other side, this function can	665	* to the closest player being on the other side, this function can
653	* be called to update the face variable, _and_ how it looks on the map.	666	* be called to update the face variable, _and_ how it looks on the map.
654	*/	667	*/
655		668	void
656	void update_turn_face(object *op) {	669	update_turn_face (object *op)
657	if(!QUERY_FLAG(op,FLAG_IS_TURNABLE)||op->arch==NULL)	670	{
		671	if (!op->flag [FLAG_IS_TURNABLE] || !op->arch)
658	return;	672	return;
		673
659	SET_ANIMATION(op, op->direction);	674	SET_ANIMATION (op, op->direction);
660	update_object(op,UP_OBJ_FACE);	675	update_object (op, UP_OBJ_FACE);
661	}	676	}
662		677
663	/*	678	/*
664	* Updates the speed of an object. If the speed changes from 0 to another	679	* Updates the speed of an object. If the speed changes from 0 to another
665	* value, or vice versa, then add/remove the object from the active list.	680	* value, or vice versa, then add/remove the object from the active list.
666	* This function needs to be called whenever the speed of an object changes.	681	* This function needs to be called whenever the speed of an object changes.
667	*/	682	*/
		683	void
		684	object::set_speed (float speed)
		685	{
		686	this->speed = speed;
668		687
669	void update_ob_speed(object *op) {	688	if (has_active_speed ())
670	extern int arch_init;	689	activate ();
671
672	/* No reason putting the archetypes objects on the speed list,
673	* since they never really need to be updated.
674	*/
675
676	if (QUERY_FLAG(op, FLAG_FREED) && op->speed) {
677	LOG(llevError,"Object %s is freed but has speed.\n", &op->name);
678	#ifdef MANY_CORES
679	abort();
680	#else
681	op->speed = 0;
682	#endif
683	}
684	if (arch_init) {
685	return;
686	}
687	if (FABS(op->speed)>MIN_ACTIVE_SPEED) {
688	/* If already on active list, don't do anything */
689	if (op->active_next || op->active_prev || op==active_objects)
690	return;
691
692	/* process_events() expects us to insert the object at the beginning
693	* of the list. */
694	op->active_next = active_objects;
695	if (op->active_next!=NULL)
696	op->active_next->active_prev = op;
697	active_objects = op;
698	}
699	else {	690	else
700	/* If not on the active list, nothing needs to be done */	691	deactivate ();
701	if (!op->active_next && !op->active_prev && op!=active_objects)
702	return;
703
704	if (op->active_prev==NULL) {
705	active_objects = op->active_next;
706	if (op->active_next!=NULL)
707	op->active_next->active_prev = NULL;
708	}
709	else {
710	op->active_prev->active_next = op->active_next;
711	if (op->active_next)
712	op->active_next->active_prev = op->active_prev;
713	}
714	op->active_next = NULL;
715	op->active_prev = NULL;
716	}
717	}	692	}
718		693
719	/* This function removes object 'op' from the list of active
720	* objects.
721	* This should only be used for style maps or other such
722	* reference maps where you don't want an object that isn't
723	* in play chewing up cpu time getting processed.
724	* The reverse of this is to call update_ob_speed, which
725	* will do the right thing based on the speed of the object.
726	*/
727	void remove_from_active_list(object *op)
728	{
729	/* If not on the active list, nothing needs to be done */
730	if (!op->active_next && !op->active_prev && op!=active_objects)
731	return;
732
733	if (op->active_prev==NULL) {
734	active_objects = op->active_next;
735	if (op->active_next!=NULL)
736	op->active_next->active_prev = NULL;
737	}
738	else {
739	op->active_prev->active_next = op->active_next;
740	if (op->active_next)
741	op->active_next->active_prev = op->active_prev;
742	}
743	op->active_next = NULL;
744	op->active_prev = NULL;
745	}
746
747	/*	694	/*
748	* update_object() updates the array which represents the map.	695	* update_object() updates the the map.
749	* It takes into account invisible objects (and represent squares covered	696	* It takes into account invisible objects (and represent squares covered
750	* by invisible objects by whatever is below them (unless it's another	697	* by invisible objects by whatever is below them (unless it's another
751	* invisible object, etc...)	698	* invisible object, etc...)
752	* If the object being updated is beneath a player, the look-window	699	* If the object being updated is beneath a player, the look-window
753	* of that player is updated (this might be a suboptimal way of	700	* of that player is updated (this might be a suboptimal way of
754	* updating that window, though, since update_object() is called _often_)	701	* updating that window, though, since update_object() is called _often_)
755	*	702	*
756	* action is a hint of what the caller believes need to be done.	703	* action is a hint of what the caller believes need to be done.
757	* For example, if the only thing that has changed is the face (due to
758	* an animation), we don't need to call update_position until that actually
759	* comes into view of a player. OTOH, many other things, like addition/removal
760	* of walls or living creatures may need us to update the flags now.
761	* current action are:	704	* current action are:
762	* UP_OBJ_INSERT: op was inserted	705	* UP_OBJ_INSERT: op was inserted
763	* UP_OBJ_REMOVE: op was removed	706	* UP_OBJ_REMOVE: op was removed
764	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update	707	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update
765	* as that is easier than trying to look at what may have changed.	708	* as that is easier than trying to look at what may have changed.
766	* UP_OBJ_FACE: only the objects face has changed.	709	* UP_OBJ_FACE: only the objects face has changed.
767	*/	710	*/
768		711	void
769	void update_object(object *op, int action) {	712	update_object (object *op, int action)
770	int update_now=0, flags;	713	{
771	MoveType move_on, move_off, move_block, move_slow;	714	if (!op)
772		715	{
773	if (op == NULL) {
774	/* this should never happen */	716	/* this should never happen */
775	LOG(llevDebug,"update_object() called for NULL object.\n");	717	LOG (llevError | logBacktrace, "update_object() called for NULL object.\n");
776	return;	718	return;
777	}
778		719	}
779	if(op->env!=NULL) {	720
		721	if (!op->is_on_map ())
		722	{
780	/* Animation is currently handled by client, so nothing	723	/* Animation is currently handled by client, so nothing
781	* to do in this case.	724	* to do in this case.
782	*/	725	*/
783	return;	726	return;
784	}
785
786	/* If the map is saving, don't do anything as everything is
787	* going to get freed anyways.
788	*/
789	if (!op->map || op->map->in_memory == MAP_SAVING) return;
790		727	}
		728
791	/* make sure the object is within map boundaries */	729	/* make sure the object is within map boundaries */
792	if (op->x < 0 || op->x >= MAP_WIDTH(op->map) ||	730	if (op->x < 0 || op->x >= op->map->width || op->y < 0 || op->y >= op->map->height)
793	op->y < 0 || op->y >= MAP_HEIGHT(op->map)) {	731	{
794	LOG(llevError,"update_object() called for object out of map!\n");	732	LOG (llevError, "update_object() called for object out of map!\n");
795	#ifdef MANY_CORES	733	#ifdef MANY_CORES
796	abort();	734	abort ();
797	#endif	735	#endif
798	return;	736	return;
799	}
800		737	}
801	flags = GET_MAP_FLAGS(op->map, op->x, op->y);
802	SET_MAP_FLAGS(op->map, op->x, op->y, flags | P_NEED_UPDATE);
803	move_slow = GET_MAP_MOVE_SLOW(op->map, op->x, op->y);
804	move_on = GET_MAP_MOVE_ON(op->map, op->x, op->y);
805	move_block = GET_MAP_MOVE_BLOCK(op->map, op->x, op->y);
806	move_off = GET_MAP_MOVE_OFF(op->map, op->x, op->y);
807		738
		739	mapspace &m = op->ms ();
		740
		741	if (!(m.flags_ & P_UPTODATE))
		742	m.update_up (); // nothing to do except copy up
808	if (action == UP_OBJ_INSERT) {	743	else if (action == UP_OBJ_INSERT)
		744	{
		745	#if 0
		746	// this is likely overkill, TODO: revisit (schmorp)
809	if (QUERY_FLAG(op, FLAG_BLOCKSVIEW) && !(flags & P_BLOCKSVIEW))	747	if ((op->flag [FLAG_BLOCKSVIEW] && !(m.flags_ & P_BLOCKSVIEW))
810	update_now=1;	748	|| (op->flag [FLAG_NO_MAGIC] && !(m.flags_ & P_NO_MAGIC))
811		749	|| (op->is_player () && !(m.flags_ & P_PLAYER))
812	if (QUERY_FLAG(op, FLAG_NO_MAGIC) && !(flags & P_NO_MAGIC))	750	|| (op->type == SAFE_GROUND && !(m.flags_ & P_SAFE))
813	update_now=1;	751	|| (op->flag [FLAG_ALIVE] && !(m.flags_ & P_IS_ALIVE))
814		752	|| (op->flag [FLAG_DAMNED] && !(m.flags_ & P_NO_CLERIC))
815	if (QUERY_FLAG(op, FLAG_DAMNED) && !(flags & P_NO_CLERIC))	753	|| (m.move_on | op->move_on ) != m.move_on
816	update_now=1;
817
818	if (QUERY_FLAG(op, FLAG_ALIVE) && !(flags & P_IS_ALIVE))
819	update_now=1;
820
821	if ((move_on | op->move_on) != move_on) update_now=1;
822	if ((move_off | op->move_off) != move_off) update_now=1;	754	|| (m.move_off | op->move_off ) != m.move_off
		755	|| (m.move_slow | op->move_slow) != m.move_slow
823	/* This isn't perfect, but I don't expect a lot of objects to	756	/* This isn't perfect, but I don't expect a lot of objects to
824	* to have move_allow right now.	757	* have move_allow right now.
825	*/	758	*/
826	if (((move_block | op->move_block) & ~op->move_allow) != move_block)	759	|| ((m.move_block | op->move_block) & ~op->move_allow) != m.move_block
827	update_now=1;	760	m.invalidate ();
828	if ((move_slow | op->move_slow) != move_slow) update_now=1;	761	#else
		762	// the above is not strong enough a test to skip updating. los maybe? TODO (schmorp)
		763	m.invalidate ();
		764	#endif
829	}	765	}
830	/* if the object is being removed, we can't make intelligent	766	/* if the object is being removed, we can't make intelligent
831	* decisions, because remove_ob can't really pass the object	767	* decisions, because remove_ob can't really pass the object
832	* that is being removed.	768	* that is being removed.
833	*/	769	*/
834	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE) {	770	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)
835	update_now=1;	771	m.invalidate ();
836	} else if (action == UP_OBJ_FACE) {	772	else if (action == UP_OBJ_FACE)
837	/* Nothing to do for that case */	773	m.update_up (); // nothing to do for that case, except copy up
838	}
839	else {	774	else
840	LOG(llevError,"update_object called with invalid action: %d\n", action);	775	LOG (llevError, "update_object called with invalid action: %d\n", action);
841	}
842		776
843	if (update_now) {
844	SET_MAP_FLAGS(op->map, op->x, op->y, flags | P_NO_ERROR | P_NEED_UPDATE);
845	update_position(op->map, op->x, op->y);
846	}
847
848	if(op->more!=NULL)	777	if (op->more)
849	update_object(op->more, action);	778	update_object (op->more, action);
850	}	779	}
851		780
		781	object::object ()
		782	{
		783	this->set_flag (FLAG_REMOVED);
852		784
853	/*	785	//expmul = 1.0; declared const for the time being
854	* free_object() frees everything allocated by an object, removes	786	face = blank_face;
855	* it from the list of used objects, and puts it on the list of	787	material = MATERIAL_NULL;
856	* free objects. The IS_FREED() flag is set in the object.	788	}
857	* The object must have been removed by remove_ob() first for	789
858	* this function to succeed.	790	object::~object ()
		791	{
		792	unlink ();
		793
		794	kv.clear ();
		795	}
		796
		797	void object::link ()
		798	{
		799	assert (!index);//D
		800	uuid = UUID::gen ();
		801
		802	refcnt_inc ();
		803	objects.insert (this);
		804
		805	++create_count;
		806
		807	}
		808
		809	void object::unlink ()
		810	{
		811	if (!index)
		812	return;
		813
		814	++destroy_count;
		815
		816	objects.erase (this);
		817	refcnt_dec ();
		818	}
		819
		820	void
		821	object::activate ()
		822	{
		823	/* If already on active list, don't do anything */
		824	if (active)
		825	return;
		826
		827	if (has_active_speed ())
		828	{
		829	if (flag [FLAG_FREED])
		830	LOG (llevError | logBacktrace, "BUG: tried to activate freed object %s\n", debug_desc ());//D
		831
		832	actives.insert (this);
		833	}
		834	}
		835
		836	void
		837	object::activate_recursive ()
		838	{
		839	activate ();
		840
		841	for (object *op = inv; op; op = op->below)
		842	op->activate_recursive ();
		843	}
		844
		845	/* This function removes object 'op' from the list of active
		846	* objects.
		847	* This should only be used for style maps or other such
		848	* reference maps where you don't want an object that isn't
		849	* in play chewing up cpu time getting processed.
		850	* The reverse of this is to call update_ob_speed, which
		851	* will do the right thing based on the speed of the object.
859	*	852	*/
860	* If free_inventory is set, free inventory as well. Else drop items in	853	void
861	* inventory to the ground.	854	object::deactivate ()
		855	{
		856	/* If not on the active list, nothing needs to be done */
		857	if (!active)
		858	return;
		859
		860	actives.erase (this);
		861	}
		862
		863	void
		864	object::deactivate_recursive ()
		865	{
		866	for (object *op = inv; op; op = op->below)
		867	op->deactivate_recursive ();
		868
		869	deactivate ();
		870	}
		871
		872	void
		873	object::set_flag_inv (int flag, int value)
		874	{
		875	for (object *op = inv; op; op = op->below)
		876	{
		877	op->flag [flag] = value;
		878	op->set_flag_inv (flag, value);
		879	}
		880	}
		881
		882	/*
		883	* Remove and free all objects in the inventory of the given object.
		884	* object.c ?
		885	*/
		886	void
		887	object::destroy_inv (bool drop_to_ground)
		888	{
		889	// need to check first, because the checks below might segfault
		890	// as we might be on an invalid mapspace and crossfire code
		891	// is too buggy to ensure that the inventory is empty.
		892	// corollary: if you create arrows etc. with stuff in its inventory,
		893	// cf will crash below with off-map x and y
		894	if (!inv)
		895	return;
		896
		897	/* Only if the space blocks everything do we not process -
		898	* if some form of movement is allowed, let objects
		899	* drop on that space.
862	*/	900	*/
		901	if (!drop_to_ground
		902	|| !map
		903	|| !map->linkable ()
		904	|| map->no_drop
		905	|| ms ().move_block == MOVE_ALL)
		906	{
		907	while (inv)
		908	inv->destroy ();
		909	}
		910	else
		911	{ /* Put objects in inventory onto this space */
		912	while (inv)
		913	{
		914	object *op = inv;
863		915
864	void	916	if (op->flag [FLAG_STARTEQUIP]
865	free_object (object * ob)	917	|| op->flag [FLAG_NO_DROP]
866	{	918	|| op->type == RUNE
867	free_object2 (ob, 0);	919	|| op->type == TRAP
		920	|| op->flag [FLAG_IS_A_TEMPLATE]
		921	|| op->flag [FLAG_DESTROY_ON_DEATH])
		922	op->destroy ();
		923	else
		924	map->insert (op, x, y);
		925	}
		926	}
868	}	927	}
869		928
		929	/*
		930	* Remove and free all objects in the inventory of the given object.
		931	* Unlike destroy_inv, this assumes the *this is destroyed as well
		932	* well, so we can (and have to!) take shortcuts.
		933	*/
870	void	934	void
871	free_object2 (object * ob, int free_inventory)	935	object::destroy_inv_fast ()
872	{	936	{
		937	while (object *op = inv)
		938	{
		939	// remove from object the fast way
		940	op->flag [FLAG_REMOVED] = true;
		941	op->env = 0;
		942	if ((inv = inv->below))
		943	inv->above = 0;
		944
		945	// then destroy
		946	op->destroy ();
		947	}
		948	}
		949
		950	void
		951	object::freelist_free (int count)
		952	{
		953	while (count-- && freelist)
		954	{
		955	freelist_item *next = freelist->next;
		956	// count is being "destroyed"
		957
		958	sfree ((char *)freelist, sizeof (object));
		959
		960	freelist = next;
		961	--free_count;
		962	}
		963	}
		964
		965	object *
		966	object::create ()
		967	{
873	object *tmp, *op;	968	object *op;
874		969
875	if (!QUERY_FLAG (ob, FLAG_REMOVED))	970	if (freelist)
876	{
877	LOG (llevDebug, "Free object called with non removed object\n");
878	dump_object (ob);
879	#ifdef MANY_CORES
880	abort ();
881	#endif
882	}	971	{
		972	freelist_item li = *freelist;
		973	memset (freelist, 0, sizeof (object));
883		974
884	if (QUERY_FLAG (ob, FLAG_FRIENDLY))	975	op = new (freelist) object;
		976	op->count = li.count;
		977
		978	freelist = li.next;
		979	--free_count;
885	{	980	}
886	LOG (llevMonster, "Warning: tried to free friendly object.\n");	981	else
		982	{
		983	void *ni = salloc0<char> (sizeof (object));
		984
		985	op = new(ni) object;
		986
		987	op->count = ++object_count;
		988	}
		989
		990	op->link ();
		991
		992	return op;
		993	}
		994
		995	void
		996	object::do_delete ()
		997	{
		998	uint32_t count = this->count;
		999
		1000	this->~object ();
		1001
		1002	freelist_item *li = (freelist_item *)this;
		1003	li->next = freelist;
		1004	li->count = count;
		1005
		1006	freelist = li;
		1007	++free_count;
		1008	}
		1009
		1010	static struct freed_map : maptile
		1011	{
		1012	freed_map ()
		1013	: maptile (3, 3)
		1014	{
		1015	path = "<freed objects map>";
		1016	name = "/internal/freed_objects_map";
		1017	no_drop = 1;
		1018	no_reset = 1;
		1019
		1020	state = MAP_ACTIVE;
		1021	}
		1022
		1023	~freed_map ()
		1024	{
		1025	destroy ();
		1026	}
		1027	} freed_map; // freed objects are moved here to avoid crashes
		1028
		1029	void
		1030	object::do_destroy ()
		1031	{
		1032	if (flag [FLAG_IS_LINKED])
		1033	remove_link ();
		1034
		1035	if (flag [FLAG_FRIENDLY])
887	remove_friendly_object (ob);	1036	remove_friendly_object (this);
		1037
		1038	remove ();
		1039
		1040	attachable::do_destroy ();
		1041
		1042	deactivate ();
		1043	unlink ();
		1044
		1045	flag [FLAG_FREED] = 1;
		1046
		1047	// hack to ensure that freed objects still have a valid map
		1048	map = &freed_map;
		1049	x = 1;
		1050	y = 1;
		1051
		1052	if (more)
888	}	1053	{
889		1054	more->destroy ();
890	if (QUERY_FLAG (ob, FLAG_FREED))	1055	more = 0;
891	{	1056	}
892	dump_object (ob);	1057
893	LOG (llevError, "Trying to free freed object.\n%s\n", errmsg);	1058	head = 0;
		1059
		1060	// clear those pointers that likely might cause circular references
		1061	owner = 0;
		1062	enemy = 0;
		1063	attacked_by = 0;
		1064	current_weapon = 0;
		1065	}
		1066
		1067	void
		1068	object::destroy ()
		1069	{
		1070	if (destroyed ())
		1071	return;
		1072
		1073	if (!is_head () && !head->destroyed ())
		1074	{
		1075	LOG (llevError | logBacktrace, "tried to destroy the tail of an object");
		1076	head->destroy ();
894	return;	1077	return;
895	}	1078	}
896		1079
897	if (ob->more != NULL)	1080	destroy_inv_fast ();
898	{
899	free_object2 (ob->more, free_inventory);
900	ob->more = NULL;
901	}
902		1081
903	if (ob->inv)	1082	if (is_head ())
904	{	1083	if (sound_destroy)
905	/* Only if the space blocks everything do we not process -	1084	play_sound (sound_destroy);
906	* if some form of movement is allowed, let objects	1085	else if (flag [FLAG_MONSTER])
907	* drop on that space.	1086	play_sound (sound_find ("monster_destroy")); // quick hack, too lazy to create a generic mechanism
908	*/
909	if (free_inventory || ob->map == NULL
910	|| ob->map->in_memory != MAP_IN_MEMORY
911	|| (GET_MAP_MOVE_BLOCK (ob->map, ob->x, ob->y) == MOVE_ALL))
912	{
913	op = ob->inv;
914		1087
915	while (op != NULL)	1088	attachable::destroy ();
916	{
917	tmp = op->below;
918	remove_ob (op);
919	free_object2 (op, free_inventory);
920	op = tmp;
921	}
922	}
923	else
924	{ /* Put objects in inventory onto this space */
925	op = ob->inv;
926
927	while (op != NULL)
928	{
929	tmp = op->below;
930	remove_ob (op);
931
932	if (QUERY_FLAG (op, FLAG_STARTEQUIP)
933	|| QUERY_FLAG (op, FLAG_NO_DROP) || op->type == RUNE
934	|| op->type == TRAP || QUERY_FLAG (op, FLAG_IS_A_TEMPLATE))
935	free_object (op);
936	else
937	{
938	op->x = ob->x;
939	op->y = ob->y;
940	insert_ob_in_map (op, ob->map, NULL, 0); /* Insert in same map as the envir */
941	}
942
943	op = tmp;
944	}
945	}
946	}
947
948	/* Remove object from the active list */
949	ob->speed = 0;
950	update_ob_speed (ob);
951
952	SET_FLAG (ob, FLAG_FREED);
953	ob->count = 0;
954
955	/* Remove this object from the list of used objects */
956	if (ob->prev == NULL)
957	{
958	objects = ob->next;
959
960	if (objects != NULL)
961	objects->prev = NULL;
962	}
963	else
964	{
965	ob->prev->next = ob->next;
966
967	if (ob->next != NULL)
968	ob->next->prev = ob->prev;
969	}
970
971	free_key_values (ob);
972
973	/* Now link it with the free_objects list: */
974	ob->prev = 0;
975	ob->next = 0;
976
977	delete ob;
978	}	1089	}
979		1090
980	/*	1091	/* op->remove ():
981	* sub_weight() recursively (outwards) subtracts a number from the
982	* weight of an object (and what is carried by it's environment(s)).
983	*/
984
985	void sub_weight (object *op, signed long weight) {
986	while (op != NULL) {
987	if (op->type == CONTAINER) {
988	weight=(signed long)(weight*(100-op->stats.Str)/100);
989	}
990	op->carrying-=weight;
991	op = op->env;
992	}
993	}
994
995	/* remove_ob(op):
996	* This function removes the object op from the linked list of objects	1092	* This function removes the object op from the linked list of objects
997	* which it is currently tied to. When this function is done, the	1093	* which it is currently tied to. When this function is done, the
998	* object will have no environment. If the object previously had an	1094	* object will have no environment. If the object previously had an
999	* environment, the x and y coordinates will be updated to	1095	* environment, the x and y coordinates will be updated to
1000	* the previous environment.	1096	* the previous environment.
1001	* Beware: This function is called from the editor as well!
1002	*/	1097	*/
		1098	void
		1099	object::do_remove ()
		1100	{
		1101	if (flag [FLAG_REMOVED])
		1102	return;
1003		1103
1004	void remove_ob(object *op) {	1104	INVOKE_OBJECT (REMOVE, this);
1005	object *tmp,*last=NULL;
1006	object *otmp;
1007	tag_t tag;
1008	int check_walk_off;
1009	mapstruct *m;
1010	sint16 x,y;
1011
1012		1105
1013	if(QUERY_FLAG(op,FLAG_REMOVED)) {	1106	flag [FLAG_REMOVED] = true;
1014	dump_object(op);
1015	LOG(llevError,"Trying to remove removed object.\n%s\n",errmsg);
1016		1107
1017	/* Changed it to always dump core in this case. As has been learned	1108	if (more)
1018	* in the past, trying to recover from errors almost always	1109	more->remove ();
1019	* make things worse, and this is a real error here - something
1020	* that should not happen.
1021	* Yes, if this was a mission critical app, trying to do something
1022	* to recover may make sense, but that is because failure of the app
1023	* may have other disastrous problems. Cf runs out of a script
1024	* so is easily enough restarted without any real problems.
1025	* MSW 2001-07-01
1026	*/
1027	abort();
1028	}
1029	if(op->more!=NULL)
1030	remove_ob(op->more);
1031		1110
1032	SET_FLAG(op, FLAG_REMOVED);
1033
1034	/*	1111	/*
1035	* In this case, the object to be removed is in someones	1112	* In this case, the object to be removed is in someones
1036	* inventory.	1113	* inventory.
1037	*/	1114	*/
1038	if(op->env!=NULL) {	1115	if (env)
1039	if(op->nrof)	1116	{
1040	sub_weight(op->env, op->weight*op->nrof);	1117	flag [FLAG_REMOVED] = false; // hack around the issue of visible_to checking flag_removed
1041	else	1118	if (object *pl = visible_to ())
1042	sub_weight(op->env, op->weight+op->carrying);	1119	esrv_del_item (pl->contr, count);
		1120	flag [FLAG_REMOVED] = true; // hack around the issue of visible_to checking flag_removed
1043		1121
1044	/* NO_FIX_PLAYER is set when a great many changes are being	1122	adjust_weight (env, total_weight (), 0);
1045	* made to players inventory. If set, avoiding the call
1046	* to save cpu time.
1047	*/
1048	if ((otmp=is_player_inv(op->env))!=NULL && otmp->contr &&
1049	!QUERY_FLAG(otmp,FLAG_NO_FIX_PLAYER))
1050	fix_player(otmp);
1051		1123
1052	if(op->above!=NULL)	1124	object *pl = in_player ();
1053	op->above->below=op->below;
1054	else
1055	op->env->inv=op->below;
1056		1125
1057	if(op->below!=NULL)
1058	op->below->above=op->above;
1059
1060	/* we set up values so that it could be inserted into	1126	/* we set up values so that it could be inserted into
1061	* the map, but we don't actually do that - it is up	1127	* the map, but we don't actually do that - it is up
1062	* to the caller to decide what we want to do.	1128	* to the caller to decide what we want to do.
1063	*/	1129	*/
1064	op->x=op->env->x,op->y=op->env->y;	1130	map = env->map;
1065	op->map=op->env->map;	1131	x = env->x;
1066	op->above=NULL,op->below=NULL;	1132	y = env->y;
1067	op->env=NULL;
1068	return;
1069	}
1070		1133
1071	/* If we get here, we are removing it from a map */	1134	// make sure cmov optimisation is applicable
1072	if (op->map == NULL) return;	1135	*(above ? &above->below : &env->inv) = below;
		1136	*(below ? &below->above : &above ) = above; // &above is just a dummy
1073		1137
1074	x = op->x;	1138	above = 0;
1075	y = op->y;	1139	below = 0;
1076	m = get_map_from_coord(op->map, &x, &y);	1140	env = 0;
1077		1141
1078	if (!m) {	1142	if (pl && pl->is_player ())
1079	LOG(llevError,"remove_ob called when object was on map but appears to not be within valid coordinates? %s (%d,%d)\n",
1080	op->map->path, op->x, op->y);
1081	/* in old days, we used to set x and y to 0 and continue.
1082	* it seems if we get into this case, something is probablye
1083	* screwed up and should be fixed.
1084	*/	1143	{
1085	abort();	1144	if (expect_false (pl->contr->combat_ob == this))
1086	}
1087	if (op->map != m) {
1088	LOG(llevDebug,"remove_ob: Object not really on map it claimed to be on? %s != %s, %d,%d != %d,%d\n",
1089	op->map->path, m->path, op->x, op->y, x, y);
1090	}
1091
1092	/* Re did the following section of code - it looks like it had
1093	* lots of logic for things we no longer care about
1094	*/
1095
1096	/* link the object above us */
1097	if (op->above)
1098	op->above->below=op->below;
1099	else
1100	SET_MAP_TOP(m,x,y,op->below); /* we were top, set new top */
1101
1102	/* Relink the object below us, if there is one */
1103	if(op->below) {
1104	op->below->above=op->above;
1105	} else {
1106	/* Nothing below, which means we need to relink map object for this space
1107	* use translated coordinates in case some oddness with map tiling is
1108	* evident
1109	*/	1145	{
1110	if(GET_MAP_OB(m,x,y)!=op) {	1146	pl->apply (pl->contr->combat_ob, AP_UNAPPLY | AP_IGNORE_CURSE);
1111	dump_object(op);	1147	pl->contr->combat_ob = 0;
1112	LOG(llevError,"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);	1148	if (pl->contr->ranged_ob) pl->apply (pl->contr->ranged_ob);
1113	dump_object(GET_MAP_OB(m,x,y));	1149	}
1114	LOG(llevError,"%s\n",errmsg);	1150
		1151	if (expect_false (pl->contr->ranged_ob == this))
		1152	{
		1153	pl->apply (pl->contr->ranged_ob, AP_UNAPPLY | AP_IGNORE_CURSE);
		1154	pl->contr->ranged_ob = 0;
		1155	if (pl->contr->combat_ob) pl->apply (pl->contr->combat_ob);
		1156	}
		1157
		1158	pl->contr->queue_stats_update ();
		1159
		1160	if (expect_false (glow_radius) && pl->is_on_map ())
		1161	update_all_los (pl->map, pl->x, pl->y);
1115	}	1162	}
1116	SET_MAP_OB(m,x,y,op->above); /* goes on above it. */	1163	}
		1164	else if (map)
1117	}	1165	{
1118	op->above=NULL;	1166	map->dirty = true;
1119	op->below=NULL;	1167	mapspace &ms = this->ms ();
1120		1168
1121	if (op->map->in_memory == MAP_SAVING)	1169	if (object *pl = ms.player ())
1122	return;
1123
1124	tag = op->count;
1125	check_walk_off = ! QUERY_FLAG (op, FLAG_NO_APPLY);
1126	for(tmp=GET_MAP_OB(m,x,y);tmp!=NULL;tmp=tmp->above) {
1127	/* No point updating the players look faces if he is the object
1128	* being removed.
1129	*/	1170	{
		1171	if (is_player ())
		1172	{
		1173	if (!flag [FLAG_WIZPASS])
		1174	ms.smell = ++mapspace::smellcount; // remember the smell of the player
1130		1175
1131	if(tmp->type==PLAYER && tmp!=op) {	1176	// leaving a spot always closes any open container on the ground
		1177	if (container && !container->env)
		1178	// this causes spurious floorbox updates, but it ensures
		1179	// that the CLOSE event is being sent.
		1180	close_container ();
		1181
		1182	--map->players;
		1183	map->touch ();
		1184	}
		1185	else if (pl->container_ () == this)
		1186	{
		1187	// removing a container should close it
		1188	close_container ();
		1189	}
		1190	else
		1191	esrv_del_item (pl->contr, count);
		1192	}
		1193
		1194	/* link the object above us */
		1195	// re-link, make sure compiler can easily use cmove
		1196	*(above ? &above->below : &ms.top) = below;
		1197	*(below ? &below->above : &ms.bot) = above;
		1198
		1199	above = 0;
		1200	below = 0;
		1201
		1202	ms.invalidate ();
		1203
		1204	int check_walk_off = !flag [FLAG_NO_APPLY];
		1205
		1206	if (object *pl = ms.player ())
		1207	{
		1208	if (pl->container_ () == this)
1132	/* If a container that the player is currently using somehow gets	1209	/* If a container that the player is currently using somehow gets
1133	* removed (most likely destroyed), update the player view	1210	* removed (most likely destroyed), update the player view
1134	* appropriately.	1211	* appropriately.
1135	*/	1212	*/
1136	if (tmp->container==op) {	1213	pl->close_container ();
1137	CLEAR_FLAG(op, FLAG_APPLIED);	1214
1138	tmp->container=NULL;	1215	//TODO: the floorbox prev/next might need updating
1139	}	1216	//esrv_del_item (pl->contr, count);
1140	tmp->contr->socket.update_look=1;	1217	//TODO: update floorbox to preserve ordering
		1218	if (pl->contr->ns)
		1219	pl->contr->ns->floorbox_update ();
1141	}	1220	}
		1221
		1222	if (check_walk_off)
		1223	for (object *above, *tmp = ms.bot; tmp; tmp = above)
		1224	{
		1225	above = tmp->above;
		1226
		1227	/* No point updating the players look faces if he is the object
		1228	* being removed.
		1229	*/
		1230
1142	/* See if player moving off should effect something */	1231	/* See if object moving off should effect something */
1143	if (check_walk_off && ((op->move_type & tmp->move_off) &&	1232	if ((move_type & tmp->move_off)
1144	(op->move_type & ~tmp->move_off & ~tmp->move_block)==0)) {	1233	&& (move_type & ~tmp->move_off & ~tmp->move_block) == 0)
1145
1146	move_apply(tmp, op, NULL);	1234	move_apply (tmp, this, 0);
1147	if (was_destroyed (op, tag)) {
1148	LOG (llevError, "BUG: remove_ob(): name %s, archname %s destroyed "
1149	"leaving object\n", &tmp->name, &tmp->arch->name);
1150	}	1235	}
1151	}
1152		1236
1153	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */	1237	if (affects_los ())
1154
1155	if(tmp->above == tmp)
1156	tmp->above = NULL;
1157	last=tmp;
1158	}
1159	/* last == NULL of there are no objects on this space */
1160	if (last==NULL) {
1161	/* set P_NEED_UPDATE, otherwise update_position will complain. In theory,
1162	* we could preserve the flags (GET_MAP_FLAGS), but update_position figures
1163	* those out anyways, and if there are any flags set right now, they won't
1164	* be correct anyways.
1165	*/
1166	SET_MAP_FLAGS(op->map, op->x, op->y, P_NEED_UPDATE);
1167	update_position(op->map, op->x, op->y);
1168	}
1169	else
1170	update_object(last, UP_OBJ_REMOVE);
1171
1172	if(QUERY_FLAG(op,FLAG_BLOCKSVIEW)|| (op->glow_radius != 0))
1173	update_all_los(op->map, op->x, op->y);	1238	update_all_los (map, x, y);
1174		1239	}
1175	}	1240	}
1176		1241
1177	/*	1242	/*
1178	* merge_ob(op,top):	1243	* merge_ob(op,top):
1179	*	1244	*
1180	* This function goes through all objects below and including top, and	1245	* This function goes through all objects below and including top, and
1181	* merges op to the first matching object.	1246	* merges op to the first matching object.
1182	* If top is NULL, it is calculated.	1247	* If top is NULL, it is calculated.
1183	* Returns pointer to object if it succeded in the merge, otherwise NULL	1248	* Returns pointer to object if it succeded in the merge, otherwise NULL
1184	*/	1249	*/
1185		1250	object *
1186	object *merge_ob(object *op, object *top) {	1251	merge_ob (object *op, object *top)
		1252	{
1187	if(!op->nrof)	1253	if (!op->nrof)
1188	return 0;	1254	return 0;
1189	if(top==NULL)	1255
		1256	if (!top)
1190	for(top=op;top!=NULL&&top->above!=NULL;top=top->above);	1257	for (top = op; top && top->above; top = top->above)
		1258	;
		1259
1191	for(;top!=NULL;top=top->below) {	1260	for (; top; top = top->below)
1192	if(top==op)	1261	if (object::can_merge (op, top))
1193	continue;
1194	if (CAN_MERGE(op,top))
1195	{	1262	{
1196	top->nrof+=op->nrof;	1263	top->nrof += op->nrof;
1197	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/	1264
1198	op->weight = 0; /* Don't want any adjustements now */	1265	if (object *pl = top->visible_to ())
1199	remove_ob(op);	1266	esrv_update_item (UPD_NROF, pl, top);
1200	free_object(op);	1267
		1268	op->weight = 0; // cancel the addition above
		1269	op->carrying = 0; // must be 0 already
		1270
		1271	op->destroy ();
		1272
1201	return top;	1273	return top;
1202	}	1274	}
1203	}	1275
1204	return NULL;	1276	return 0;
1205	}	1277	}
1206		1278
		1279	void
		1280	object::expand_tail ()
		1281	{
		1282	if (more)
		1283	return;
		1284
		1285	object *prev = this;
		1286
		1287	for (archetype *at = (archetype *)arch->more; at; at = (archetype *)at->more)
		1288	{
		1289	object *op = at->instance ();
		1290
		1291	op->name = name;
		1292	op->name_pl = name_pl;
		1293	op->title = title;
		1294
		1295	op->head = this;
		1296	prev->more = op;
		1297
		1298	prev = op;
		1299	}
		1300	}
		1301
1207	/*	1302	/*
1208	* same as insert_ob_in_map except it handle separate coordinates and do a clean	1303	* same as insert_ob_in_map except it handles separate coordinates and does a clean
1209	* job preparing multi-part monsters	1304	* job preparing multi-part monsters.
1210	*/	1305	*/
		1306	object *
1211	object *insert_ob_in_map_at(object *op, mapstruct *m, object *originator, int flag, int x, int y){	1307	insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)
1212	object* tmp;	1308	{
1213	if (op->head)	1309	op->remove ();
1214	op=op->head;	1310
1215	for (tmp=op;tmp;tmp=tmp->more){	1311	for (object *tmp = op->head_ (); tmp; tmp = tmp->more)
		1312	{
1216	tmp->x=x+tmp->arch->clone.x;	1313	tmp->x = x + tmp->arch->x;
1217	tmp->y=y+tmp->arch->clone.y;	1314	tmp->y = y + tmp->arch->y;
1218	}	1315	}
		1316
1219	return insert_ob_in_map (op, m, originator, flag);	1317	return insert_ob_in_map (op, m, originator, flag);
1220	}	1318	}
1221		1319
1222	/*	1320	/*
1223	* insert_ob_in_map (op, map, originator, flag):	1321	* insert_ob_in_map (op, map, originator, flag):
1224	* This function inserts the object in the two-way linked list	1322	* This function inserts the object in the two-way linked list
…		…
1234	* Passing 0 for flag gives proper default values, so flag really only needs	1332	* Passing 0 for flag gives proper default values, so flag really only needs
1235	* to be set if special handling is needed.	1333	* to be set if special handling is needed.
1236	*	1334	*
1237	* Return value:	1335	* Return value:
1238	* new object if 'op' was merged with other object	1336	* new object if 'op' was merged with other object
1239	* NULL if 'op' was destroyed	1337	* NULL if there was an error (destroyed, blocked etc.)
1240	* just 'op' otherwise	1338	* just 'op' otherwise
1241	*/	1339	*/
1242		1340	object *
1243	object *insert_ob_in_map (object *op, mapstruct *m, object *originator, int flag)	1341	insert_ob_in_map (object *op, maptile *m, object *originator, int flag)
1244	{	1342	{
1245	object *tmp, *top, *floor=NULL;	1343	op->remove ();
1246	sint16 x,y;
1247		1344
1248	if (QUERY_FLAG (op, FLAG_FREED)) {	1345	if (m == &freed_map)//D TODO: remove soon
1249	LOG (llevError, "Trying to insert freed object!\n");	1346	{//D
1250	return NULL;	1347	LOG (llevError | logBacktrace, "tries to insert object on freed objects map: %s", op->debug_desc ());//D
		1348	}//D
		1349
		1350	/* Ideally, the caller figures this out. However, it complicates a lot
		1351	* of areas of callers (eg, anything that uses find_free_spot would now
		1352	* need extra work
		1353	*/
		1354	maptile *newmap = m;
		1355	if (!xy_normalise (newmap, op->x, op->y))
1251	}	1356	{
1252	if(m==NULL) {	1357	op->head_ ()->destroy ();// remove head_ once all tail object destroyers found
1253	dump_object(op);
1254	LOG(llevError,"Trying to insert in null-map!\n%s\n",errmsg);
1255	return op;	1358	return 0;
1256	}	1359	}
1257	if(out_of_map(m,op->x,op->y)) {	1360
1258	dump_object(op);	1361	if (object *more = op->more)
1259	LOG(llevError,"Trying to insert object outside the map.\n%s\n", errmsg);	1362	if (!insert_ob_in_map (more, m, originator, flag))
1260	#ifdef MANY_CORES
1261	/* Better to catch this here, as otherwise the next use of this object
1262	* is likely to cause a crash. Better to find out where it is getting
1263	* improperly inserted.
1264	*/
1265	abort();
1266	#endif
1267	return op;	1363	return 0;
1268	}
1269	if(!QUERY_FLAG(op,FLAG_REMOVED)) {
1270	dump_object(op);
1271	LOG(llevError,"Trying to insert (map) inserted object.\n%s\n", errmsg);
1272	return op;
1273	}
1274	if(op->more!=NULL) {
1275	/* The part may be on a different map. */
1276		1364
1277	object *more = op->more;	1365	op->flag [FLAG_REMOVED] = false;
		1366	op->env = 0;
		1367	op->map = newmap;
1278		1368
1279	/* We really need the caller to normalize coordinates - if	1369	mapspace &ms = op->ms ();
1280	* we set the map, that doesn't work if the location is within	1370
1281	* a map and this is straddling an edge. So only if coordinate	1371	/* this has to be done after we translate the coordinates.
1282	* is clear wrong do we normalize it.	1372	*/
		1373	if (op->nrof && !(flag & INS_NO_MERGE))
		1374	for (object *tmp = ms.bot; tmp; tmp = tmp->above)
		1375	if (object::can_merge (op, tmp))
1283	*/	1376	{
1284	if (OUT_OF_REAL_MAP(more->map, more->x, more->y)) {	1377	// TODO: we actually want to update tmp, not op,
1285	more->map = get_map_from_coord(m, &more->x, &more->y);	1378	// but some caller surely breaks when we return tmp
1286	} else if (!more->map) {	1379	// from here :/
1287	/* For backwards compatibility - when not dealing with tiled maps,	1380	op->nrof += tmp->nrof;
1288	* more->map should always point to the parent.	1381	tmp->destroy ();
1289	*/
1290	more->map = m;
1291	}	1382	}
1292		1383
1293	if (insert_ob_in_map(more, more->map, originator, flag) == NULL) {	1384	op->clr_flag (FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */
1294	if ( ! op->head)	1385	op->clr_flag (FLAG_INV_LOCKED);
1295	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");	1386
1296	return NULL;	1387	if (!op->flag [FLAG_ALIVE])
		1388	op->clr_flag (FLAG_NO_STEAL);
		1389
		1390	if (flag & INS_BELOW_ORIGINATOR)
		1391	{
		1392	if (originator->map != op->map || originator->x != op->x || originator->y != op->y)
		1393	{
		1394	LOG (llevError, "insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");
		1395	abort ();
1297	}	1396	}
		1397
		1398	if (!originator->is_on_map ())
		1399	{
		1400	LOG (llevError, "insert_ob_in_map(%s) called with INS_BELOW_ORIGINATOR when originator '%s' not on map",
		1401	op->debug_desc (), originator->debug_desc ());
		1402	abort ();
		1403	}
		1404
		1405	op->above = originator;
		1406	op->below = originator->below;
		1407	originator->below = op;
		1408
		1409	*(op->below ? &op->below->above : &ms.bot) = op;
		1410	}
		1411	else
1298	}	1412	{
1299	CLEAR_FLAG(op,FLAG_REMOVED);	1413	object *floor = 0;
		1414	object *top = ms.top;
1300		1415
1301	/* Ideally, the caller figures this out. However, it complicates a lot	1416	/* If there are other objects, then */
1302	* of areas of callers (eg, anything that uses find_free_spot would now	1417	if (top)
1303	* need extra work	1418	{
1304	*/	1419	/*
1305	op->map=get_map_from_coord(m, &op->x, &op->y);	1420	* If there are multiple objects on this space, we do some trickier handling.
1306	x = op->x;	1421	* We've already dealt with merging if appropriate.
1307	y = op->y;	1422	* Generally, we want to put the new object on top. But if
		1423	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last
		1424	* floor, we want to insert above that and no further.
		1425	* Also, if there are spell objects on this space, we stop processing
		1426	* once we get to them. This reduces the need to traverse over all of
		1427	* them when adding another one - this saves quite a bit of cpu time
		1428	* when lots of spells are cast in one area. Currently, it is presumed
		1429	* that flying non pickable objects are spell objects.
		1430	*/
		1431	for (object *tmp = ms.bot; tmp; tmp = tmp->above)
		1432	{
		1433	if (tmp->flag [FLAG_IS_FLOOR] || tmp->flag [FLAG_OVERLAY_FLOOR])
		1434	floor = tmp;
1308		1435
1309	/* this has to be done after we translate the coordinates.	1436	if (tmp->flag [FLAG_NO_PICK] && (tmp->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !tmp->flag [FLAG_IS_FLOOR])
1310	*/	1437	{
1311	if(op->nrof && !(flag & INS_NO_MERGE)) {	1438	/* We insert above top, so we want this object below this */
1312	for(tmp=GET_MAP_OB(op->map,x,y);tmp!=NULL;tmp=tmp->above)	1439	top = tmp->below;
1313	if (CAN_MERGE(op,tmp)) {	1440	break;
1314	op->nrof+=tmp->nrof;	1441	}
1315	remove_ob(tmp);	1442
1316	free_object(tmp);	1443	top = tmp;
1317	}	1444	}
1318	}
1319		1445
1320	CLEAR_FLAG(op,FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */	1446	/* We let update_position deal with figuring out what the space
1321	CLEAR_FLAG(op, FLAG_INV_LOCKED);	1447	* looks like instead of lots of conditions here.
1322	if (!QUERY_FLAG(op, FLAG_ALIVE))	1448	* makes things faster, and effectively the same result.
1323	CLEAR_FLAG(op, FLAG_NO_STEAL);	1449	*/
1324		1450
1325	if (flag & INS_BELOW_ORIGINATOR) {	1451	/* Have object 'fall below' other objects that block view.
1326	if (originator->map != op->map || originator->x != op->x ||	1452	* Unless those objects are exits.
1327	originator->y != op->y) {	1453	* If INS_ON_TOP is used, don't do this processing
1328	LOG(llevError,"insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");	1454	* Need to find the object that in fact blocks view, otherwise
1329	abort();	1455	* stacking is a bit odd.
		1456	*/
		1457	if (!(flag & INS_ON_TOP)
		1458	&& ms.flags () & P_BLOCKSVIEW
		1459	&& (op->face && !faces [op->face].visibility))
		1460	{
		1461	object *last;
		1462
		1463	for (last = top; last != floor; last = last->below)
		1464	if (last->flag [FLAG_BLOCKSVIEW] && (last->type != EXIT))
		1465	break;
		1466
		1467	/* Check to see if we found the object that blocks view,
		1468	* and make sure we have a below pointer for it so that
		1469	* we can get inserted below this one, which requires we
		1470	* set top to the object below us.
		1471	*/
		1472	if (last && last->below && last != floor)
		1473	top = last->below;
		1474	}
		1475	} /* If objects on this space */
		1476
		1477	if (flag & INS_ABOVE_FLOOR_ONLY)
		1478	top = floor;
		1479
		1480	// insert object above top, or bottom-most if top = 0
		1481	if (!top)
		1482	{
		1483	op->below = 0;
		1484	op->above = ms.bot;
		1485	ms.bot = op;
		1486
		1487	*(op->above ? &op->above->below : &ms.top) = op;
1330	}	1488	}
1331	op->above = originator;
1332	op->below = originator->below;
1333	if (op->below) op->below->above = op;
1334	else SET_MAP_OB(op->map, op->x, op->y, op);
1335	/* since *below* originator, no need to update top */
1336	originator->below = op;
1337	} else {	1489	else
1338	/* If there are other objects, then */
1339	if((! (flag & INS_MAP_LOAD)) && ((top=GET_MAP_OB(op->map,op->x,op->y))!=NULL)) {
1340	object *last=NULL;
1341	/*
1342	* If there are multiple objects on this space, we do some trickier handling.
1343	* We've already dealt with merging if appropriate.
1344	* Generally, we want to put the new object on top. But if
1345	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last
1346	* floor, we want to insert above that and no further.
1347	* Also, if there are spell objects on this space, we stop processing
1348	* once we get to them. This reduces the need to traverse over all of
1349	* them when adding another one - this saves quite a bit of cpu time
1350	* when lots of spells are cast in one area. Currently, it is presumed
1351	* that flying non pickable objects are spell objects.
1352	*/
1353
1354	while (top != NULL) {
1355	if (QUERY_FLAG(top, FLAG_IS_FLOOR) ||
1356	QUERY_FLAG(top, FLAG_OVERLAY_FLOOR)) floor = top;
1357	if (QUERY_FLAG(top, FLAG_NO_PICK)
1358	&& (top->move_type & (MOVE_FLY_LOW |MOVE_FLY_HIGH))
1359	&& !QUERY_FLAG(top, FLAG_IS_FLOOR))
1360	{
1361	/* We insert above top, so we want this object below this */
1362	top=top->below;
1363	break;
1364	}
1365	last = top;
1366	top = top->above;
1367	}
1368	/* Don't want top to be NULL, so set it to the last valid object */
1369	top = last;
1370
1371	/* We let update_position deal with figuring out what the space
1372	* looks like instead of lots of conditions here.
1373	* makes things faster, and effectively the same result.
1374	*/
1375
1376	/* Have object 'fall below' other objects that block view.
1377	* Unless those objects are exits, type 66
1378	* If INS_ON_TOP is used, don't do this processing
1379	* Need to find the object that in fact blocks view, otherwise
1380	* stacking is a bit odd.
1381	*/
1382	if (!(flag & INS_ON_TOP) &&
1383	(get_map_flags(op->map, NULL, op->x, op->y, NULL, NULL) & P_BLOCKSVIEW) &&
1384	(op->face && !op->face->visibility)) {
1385	for (last=top; last != floor; last=last->below)
1386	if (QUERY_FLAG(last, FLAG_BLOCKSVIEW)&&(last->type != EXIT)) break;
1387	/* Check to see if we found the object that blocks view,
1388	* and make sure we have a below pointer for it so that
1389	* we can get inserted below this one, which requires we
1390	* set top to the object below us.
1391	*/
1392	if (last && last->below && last != floor) top=last->below;
1393	}
1394	} /* If objects on this space */
1395	if (flag & INS_MAP_LOAD)
1396	top = GET_MAP_TOP(op->map,op->x,op->y);
1397	if (flag & INS_ABOVE_FLOOR_ONLY) top = floor;
1398
1399	/* Top is the object that our object (op) is going to get inserted above.
1400	*/	1490	{
1401
1402	/* First object on this space */
1403	if (!top) {
1404	op->above = GET_MAP_OB(op->map, op->x, op->y);
1405	if (op->above) op->above->below = op;
1406	op->below = NULL;
1407	SET_MAP_OB(op->map, op->x, op->y, op);
1408	} else { /* get inserted into the stack above top */
1409	op->above = top->above;	1491	op->above = top->above;
1410	if (op->above) op->above->below = op;
1411	op->below = top;
1412	top->above = op;	1492	top->above = op;
		1493
		1494	op->below = top;
		1495	*(op->above ? &op->above->below : &ms.top) = op;
1413	}	1496	}
1414	if (op->above==NULL)	1497	}
1415	SET_MAP_TOP(op->map,op->x, op->y, op);
1416	} /* else not INS_BELOW_ORIGINATOR */
1417		1498
1418	if(op->type==PLAYER)	1499	if (op->is_player ())
		1500	{
1419	op->contr->do_los=1;	1501	op->contr->do_los = 1;
		1502	++op->map->players;
		1503	op->map->touch ();
		1504	}
1420		1505
1421	/* If we have a floor, we know the player, if any, will be above	1506	op->map->dirty = true;
1422	* it, so save a few ticks and start from there.
1423	*/
1424	if (!(flag & INS_MAP_LOAD))
1425	for(tmp=floor?floor:GET_MAP_OB(op->map,op->x,op->y);tmp!=NULL;tmp=tmp->above) {
1426	if (tmp->type == PLAYER)
1427	tmp->contr->socket.update_look=1;
1428	}
1429		1507
		1508	if (object *pl = ms.player ())
		1509	//TODO: the floorbox prev/next might need updating
		1510	//esrv_send_item (pl, op);
		1511	//TODO: update floorbox to preserve ordering
		1512	if (pl->contr->ns)
		1513	pl->contr->ns->floorbox_update ();
		1514
1430	/* If this object glows, it may affect lighting conditions that are	1515	/* If this object glows, it may affect lighting conditions that are
1431	* visible to others on this map. But update_all_los is really	1516	* visible to others on this map. But update_all_los is really
1432	* an inefficient way to do this, as it means los for all players	1517	* an inefficient way to do this, as it means los for all players
1433	* on the map will get recalculated. The players could very well	1518	* on the map will get recalculated. The players could very well
1434	* be far away from this change and not affected in any way -	1519	* be far away from this change and not affected in any way -
1435	* this should get redone to only look for players within range,	1520	* this should get redone to only look for players within range,
1436	* or just updating the P_NEED_UPDATE for spaces within this area	1521	* or just updating the P_UPTODATE for spaces within this area
1437	* of effect may be sufficient.	1522	* of effect may be sufficient.
1438	*/	1523	*/
1439	if(MAP_DARKNESS(op->map) && (op->glow_radius != 0))	1524	if (op->affects_los ())
		1525	{
		1526	op->ms ().invalidate ();
1440	update_all_los(op->map, op->x, op->y);	1527	update_all_los (op->map, op->x, op->y);
		1528	}
1441		1529
1442
1443	/* updates flags (blocked, alive, no magic, etc) for this map space */	1530	/* updates flags (blocked, alive, no magic, etc) for this map space */
1444	update_object(op,UP_OBJ_INSERT);	1531	update_object (op, UP_OBJ_INSERT);
1445		1532
		1533	INVOKE_OBJECT (INSERT, op);
1446		1534
1447	/* Don't know if moving this to the end will break anything. However,	1535	/* Don't know if moving this to the end will break anything. However,
1448	* we want to have update_look set above before calling this.	1536	* we want to have floorbox_update called before calling this.
1449	*	1537	*
1450	* check_move_on() must be after this because code called from	1538	* check_move_on() must be after this because code called from
1451	* check_move_on() depends on correct map flags (so functions like	1539	* check_move_on() depends on correct map flags (so functions like
1452	* blocked() and wall() work properly), and these flags are updated by	1540	* blocked() and wall() work properly), and these flags are updated by
1453	* update_object().	1541	* update_object().
1454	*/	1542	*/
1455		1543
1456	/* if this is not the head or flag has been passed, don't check walk on status */	1544	/* if this is not the head or flag has been passed, don't check walk on status */
1457
1458	if (!(flag & INS_NO_WALK_ON) && !op->head) {	1545	if (!(flag & INS_NO_WALK_ON) && op->is_head ())
		1546	{
1459	if (check_move_on(op, originator))	1547	if (check_move_on (op, originator, flag))
1460	return NULL;	1548	return 0;
1461		1549
1462	/* If we are a multi part object, lets work our way through the check	1550	/* If we are a multi part object, let's work our way through the check
1463	* walk on's.	1551	* walk on's.
1464	*/	1552	*/
1465	for (tmp=op->more; tmp!=NULL; tmp=tmp->more)	1553	for (object *tmp = op->more; tmp; tmp = tmp->more)
1466	if (check_move_on (tmp, originator))	1554	if (check_move_on (tmp, originator, flag))
1467	return NULL;	1555	return 0;
1468	}	1556	}
		1557
1469	return op;	1558	return op;
1470	}	1559	}
1471		1560
1472	/* this function inserts an object in the map, but if it	1561	/* this function inserts an object in the map, but if it
1473	* finds an object of its own type, it'll remove that one first.	1562	* finds an object of its own type, it'll remove that one first.
1474	* op is the object to insert it under: supplies x and the map.	1563	* op is the object to insert it under: supplies x and the map.
1475	*/	1564	*/
1476	void replace_insert_ob_in_map(const char *arch_string, object *op) {	1565	void
1477	object *tmp;	1566	replace_insert_ob_in_map (shstr_tmp archname, object *op)
1478	object *tmp1;	1567	{
1479
1480	/* first search for itself and remove any old instances */	1568	/* first search for itself and remove any old instances */
1481		1569
1482	for(tmp=GET_MAP_OB(op->map,op->x,op->y); tmp!=NULL; tmp=tmp->above) {	1570	for (object *tmp = op->ms ().bot; tmp; tmp = tmp->above)
1483	if(!strcmp(tmp->arch->name,arch_string)) /* same archetype */ {	1571	if (tmp->arch->archname == archname) /* same archetype */
1484	remove_ob(tmp);	1572	tmp->destroy ();
1485	free_object(tmp);
1486	}
1487	}
1488		1573
1489	tmp1=arch_to_object(find_archetype(arch_string));	1574	object *tmp = archetype::find (archname)->instance ();
1490		1575
1491		1576	tmp->x = op->x;
1492	tmp1->x = op->x; tmp1->y = op->y;	1577	tmp->y = op->y;
		1578
1493	insert_ob_in_map(tmp1,op->map,op,0);	1579	insert_ob_in_map (tmp, op->map, op, 0);
1494	}	1580	}
1495		1581
1496	/*	1582	object *
1497	* get_split_ob(ob,nr) splits up ob into two parts. The part which	1583	object::insert_at (object *where, object *originator, int flags)
1498	* is returned contains nr objects, and the remaining parts contains	1584	{
1499	* the rest (or is removed and freed if that number is 0).	1585	if (where->env)
1500	* On failure, NULL is returned, and the reason put into the	1586	return where->env->insert (this);
1501	* global static errmsg array.	1587	else
1502	*/	1588	return where->map->insert (this, where->x, where->y, originator, flags);
		1589	}
1503		1590
1504	object *get_split_ob(object *orig_ob, uint32 nr) {	1591	// check whether we can put this into the map, respect max_volume, max_items
1505	object *newob;	1592	bool
1506	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);	1593	object::can_drop_at (maptile *m, int x, int y, object *originator)
		1594	{
		1595	mapspace &ms = m->at (x, y);
1507		1596
1508	if(orig_ob->nrof<nr) {	1597	int items = ms.items ();
1509	sprintf(errmsg,"There are only %d %ss.",
1510	orig_ob->nrof?orig_ob->nrof:1, &orig_ob->name);
1511	return NULL;
1512	}
1513	newob = object_create_clone(orig_ob);
1514	if((orig_ob->nrof-=nr)<1) {
1515	if ( ! is_removed)
1516	remove_ob(orig_ob);
1517	free_object2(orig_ob, 1);
1518	}
1519	else if ( ! is_removed) {
1520	if(orig_ob->env!=NULL)
1521	sub_weight (orig_ob->env,orig_ob->weight*nr);
1522	if (orig_ob->env == NULL && orig_ob->map->in_memory!=MAP_IN_MEMORY) {
1523	strcpy(errmsg, "Tried to split object whose map is not in memory.");
1524	LOG(llevDebug,
1525	"Error, Tried to split object whose map is not in memory.\n");
1526	return NULL;
1527	}
1528	}
1529	newob->nrof=nr;
1530		1598
		1599	if (!items // testing !items ensures we can drop at least one item
		1600	|| (items < m->max_items
		1601	&& ms.volume () < m->max_volume))
1531	return newob;	1602	return true;
1532	}
1533		1603
		1604	if (originator && originator->is_player ())
		1605	originator->contr->failmsgf (
		1606	"No matter how hard you try, you just cannot put the %s here H<Try to remove some items from the floor first.>",
		1607	query_name ()
		1608	);
		1609
		1610	return false;
		1611	}
		1612
1534	/*	1613	/*
1535	* decrease_ob_nr(object, number) decreases a specified number from	1614	* decrease(object, number) decreases a specified number from
1536	* the amount of an object. If the amount reaches 0, the object	1615	* the amount of an object. If the amount reaches 0, the object
1537	* is subsequently removed and freed.	1616	* is subsequently removed and freed.
1538	*	1617	*
1539	* Return value: 'op' if something is left, NULL if the amount reached 0	1618	* Return value: 'op' if something is left, NULL if the amount reached 0
1540	*/	1619	*/
1541		1620	bool
1542	object *decrease_ob_nr (object *op, uint32 i)	1621	object::decrease (sint32 nr)
1543	{	1622	{
1544	object *tmp;	1623	if (!nr)
1545	player *pl;	1624	return true;
1546		1625
1547	if (i == 0) /* objects with op->nrof require this check */	1626	nr = min (nr, nrof);
		1627
		1628	if (nrof > nr)
		1629	{
		1630	sint64 oweight = total_weight ();
		1631
		1632	nrof -= nr;
		1633
		1634	if (object *pl = visible_to ())
		1635	esrv_update_item (UPD_NROF, pl, this);
		1636
		1637	adjust_weight (env, oweight, total_weight ());
		1638
		1639	return true;
		1640	}
		1641	else
		1642	{
		1643	destroy ();
		1644	return false;
		1645	}
		1646	}
		1647
		1648	/*
		1649	* split(ob,nr) splits up ob into two parts. The part which
		1650	* is returned contains nr objects, and the remaining parts contains
		1651	* the rest (or is removed and returned if that number is 0).
		1652	* On failure, NULL is returned.
		1653	*/
		1654	object *
		1655	object::split (sint32 nr)
		1656	{
		1657	int have = number_of ();
		1658
		1659	if (have < nr)
		1660	return 0;
		1661	else if (have == nr)
		1662	{
		1663	remove ();
		1664	return this;
		1665	}
		1666	else
		1667	{
		1668	decrease (nr);
		1669
		1670	object *op = deep_clone ();
		1671	op->nrof = nr;
1548	return op;	1672	return op;
1549
1550	if (i > op->nrof)
1551	i = op->nrof;
1552
1553	if (QUERY_FLAG (op, FLAG_REMOVED))
1554	{	1673	}
1555	op->nrof -= i;	1674	}
		1675
		1676	object *
		1677	insert_ob_in_ob (object *op, object *where)
		1678	{
		1679	if (!where)
1556	}	1680	{
1557	else if (op->env != NULL)	1681	char *dump = dump_object (op);
1558	{	1682	LOG (llevError, "Trying to put object in NULL.\n%s\n", dump);
1559	/* is this object in the players inventory, or sub container	1683	free (dump);
1560	* therein?
1561	*/
1562	tmp = is_player_inv (op->env);
1563	/* nope. Is this a container the player has opened?
1564	* If so, set tmp to that player.
1565	* IMO, searching through all the players will mostly
1566	* likely be quicker than following op->env to the map,
1567	* and then searching the map for a player.
1568	*/
1569	if (!tmp) {
1570	for (pl=first_player; pl; pl=pl->next)
1571	if (pl->ob->container == op->env) break;
1572	if (pl) tmp=pl->ob;
1573	else tmp=NULL;
1574	}
1575
1576	if (i < op->nrof) {
1577	sub_weight (op->env, op->weight * i);
1578	op->nrof -= i;
1579	if (tmp) {
1580	esrv_send_item(tmp, op);
1581	}
1582	} else {
1583	remove_ob (op);
1584	op->nrof = 0;
1585	if (tmp) {
1586	esrv_del_item(tmp->contr, op->count);
1587	}
1588	}
1589	}
1590	else
1591	{
1592	object *above = op->above;
1593
1594	if (i < op->nrof) {
1595	op->nrof -= i;
1596	} else {
1597	remove_ob (op);
1598	op->nrof = 0;
1599	}
1600	/* Since we just removed op, op->above is null */
1601	for (tmp = above; tmp != NULL; tmp = tmp->above)
1602	if (tmp->type == PLAYER) {
1603	if (op->nrof)
1604	esrv_send_item(tmp, op);
1605	else
1606	esrv_del_item(tmp->contr, op->count);
1607	}
1608	}
1609
1610	if (op->nrof) {
1611	return op;	1684	return op;
1612	} else {	1685	}
1613	free_object (op);	1686
1614	return NULL;	1687	if (where->head_ () != where)
1615	}	1688	{
1616	}	1689	LOG (llevError | logBacktrace, "Warning: Tried to insert object into wrong part of multipart object.\n");
1617		1690	where = where->head;
1618	/*
1619	* add_weight(object, weight) adds the specified weight to an object,
1620	* and also updates how much the environment(s) is/are carrying.
1621	*/
1622
1623	void add_weight (object *op, signed long weight) {
1624	while (op!=NULL) {
1625	if (op->type == CONTAINER) {
1626	weight=(signed long)(weight*(100-op->stats.Str)/100);
1627	}
1628	op->carrying+=weight;
1629	op=op->env;
1630	}	1691	}
1631	}
1632		1692
		1693	return where->insert (op);
		1694	}
		1695
1633	/*	1696	/*
1634	* insert_ob_in_ob(op,environment):	1697	* env->insert (op)
1635	* This function inserts the object op in the linked list	1698	* This function inserts the object op in the linked list
1636	* inside the object environment.	1699	* inside the object environment.
1637	*	1700	*
1638	* Eneq(@csd.uu.se): Altered insert_ob_in_ob to make things picked up enter
1639	* the inventory at the last position or next to other objects of the same
1640	* type.
1641	* Frank: Now sorted by type, archetype and magic!
1642	*
1643	* The function returns now pointer to inserted item, and return value can	1701	* The function returns now pointer to inserted item, and return value can
1644	* be != op, if items are merged. -Tero	1702	* be != op, if items are merged. -Tero
1645	*/	1703	*/
1646		1704	object *
1647	object *insert_ob_in_ob(object *op,object *where) {	1705	object::insert (object *op)
1648	object *tmp, *otmp;	1706	{
1649
1650	if(!QUERY_FLAG(op,FLAG_REMOVED)) {
1651	dump_object(op);
1652	LOG(llevError,"Trying to insert (ob) inserted object.\n%s\n", errmsg);
1653	return op;
1654	}
1655	if(where==NULL) {
1656	dump_object(op);
1657	LOG(llevError,"Trying to put object in NULL.\n%s\n", errmsg);
1658	return op;
1659	}
1660	if (where->head) {
1661	LOG(llevDebug,
1662	"Warning: Tried to insert object wrong part of multipart object.\n");
1663	where = where->head;
1664	}
1665	if (op->more) {	1707	if (op->more)
		1708	{
1666	LOG(llevError, "Tried to insert multipart object %s (%d)\n",	1709	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);
1667	&op->name, op->count);
1668	return op;	1710	return op;
1669	}	1711	}
1670	CLEAR_FLAG(op, FLAG_OBJ_ORIGINAL);	1712
1671	CLEAR_FLAG(op, FLAG_REMOVED);	1713	op->remove ();
		1714
		1715	op->flag [FLAG_OBJ_ORIGINAL] = 0;
		1716
1672	if(op->nrof) {	1717	if (op->nrof)
1673	for(tmp=where->inv;tmp!=NULL;tmp=tmp->below)	1718	for (object *tmp = inv; tmp; tmp = tmp->below)
1674	if ( CAN_MERGE(tmp,op) ) {	1719	if (object::can_merge (tmp, op))
		1720	{
1675	/* return the original object and remove inserted object	1721	/* return the original object and remove inserted object
1676	(client needs the original object) */	1722	(client prefers the original object) */
		1723
		1724	// carring must be 0 for mergable objects
		1725	sint64 oweight = tmp->weight * tmp->nrof;
		1726
1677	tmp->nrof += op->nrof;	1727	tmp->nrof += op->nrof;
1678	/* Weight handling gets pretty funky. Since we are adding to	1728
1679	* tmp->nrof, we need to increase the weight.	1729	if (object *pl = tmp->visible_to ())
1680	*/	1730	esrv_update_item (UPD_NROF, pl, tmp);
1681	add_weight (where, op->weight*op->nrof);	1731
1682	SET_FLAG(op, FLAG_REMOVED);	1732	adjust_weight (this, oweight, tmp->weight * tmp->nrof);
1683	free_object(op); /* free the inserted object */	1733
		1734	op->destroy ();
1684	op = tmp;	1735	op = tmp;
1685	remove_ob (op); /* and fix old object's links */	1736	goto inserted;
1686	CLEAR_FLAG(op, FLAG_REMOVED);
1687	break;
1688	}	1737	}
1689		1738
1690	/* I assume combined objects have no inventory	1739	op->owner = 0; // it's his/hers now. period.
1691	* We add the weight - this object could have just been removed	1740	op->map = 0;
1692	* (if it was possible to merge). calling remove_ob will subtract	1741	op->x = 0;
1693	* the weight, so we need to add it in again, since we actually do	1742	op->y = 0;
1694	* the linking below
1695	*/
1696	add_weight (where, op->weight*op->nrof);
1697	} else
1698	add_weight (where, (op->weight+op->carrying));
1699		1743
1700	otmp=is_player_inv(where);
1701	if (otmp&&otmp->contr!=NULL) {
1702	if (!QUERY_FLAG(otmp,FLAG_NO_FIX_PLAYER))
1703	fix_player(otmp);
1704	}
1705
1706	op->map=NULL;
1707	op->env=where;
1708	op->above=NULL;	1744	op->above = 0;
1709	op->below=NULL;	1745	op->below = inv;
1710	op->x=0,op->y=0;	1746	op->env = this;
1711		1747
		1748	if (inv)
		1749	inv->above = op;
		1750
		1751	inv = op;
		1752
		1753	op->flag [FLAG_REMOVED] = 0;
		1754
		1755	if (object *pl = op->visible_to ())
		1756	esrv_send_item (pl, op);
		1757
		1758	adjust_weight (this, 0, op->total_weight ());
		1759
		1760	inserted:
1712	/* reset the light list and los of the players on the map */	1761	/* reset the light list and los of the players on the map */
1713	if((op->glow_radius!=0)&&where->map)	1762	if (op->glow_radius && is_on_map ())
1714	{	1763	{
1715	#ifdef DEBUG_LIGHTS	1764	update_stats ();
1716	LOG(llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n",	1765	update_all_los (map, x, y);
1717	op->name);
1718	#endif /* DEBUG_LIGHTS */
1719	if (MAP_DARKNESS(where->map)) update_all_los(where->map, where->x, where->y);
1720	}	1766	}
		1767	else if (is_player ())
		1768	// if this is a player's inventory, update stats
		1769	contr->queue_stats_update ();
1721		1770
1722	/* Client has no idea of ordering so lets not bother ordering it here.	1771	INVOKE_OBJECT (INSERT, this);
1723	* It sure simplifies this function...	1772
1724	*/
1725	if (where->inv==NULL)
1726	where->inv=op;
1727	else {
1728	op->below = where->inv;
1729	op->below->above = op;
1730	where->inv = op;
1731	}
1732	return op;	1773	return op;
1733	}	1774	}
1734		1775
1735	/*	1776	/*
1736	* Checks if any objects has a move_type that matches objects	1777	* Checks if any objects has a move_type that matches objects
…		…
1750	*	1791	*
1751	* MSW 2001-07-08: Check all objects on space, not just those below	1792	* MSW 2001-07-08: Check all objects on space, not just those below
1752	* object being inserted. insert_ob_in_map may not put new objects	1793	* object being inserted. insert_ob_in_map may not put new objects
1753	* on top.	1794	* on top.
1754	*/	1795	*/
1755		1796	int
1756	int check_move_on (object *op, object *originator)	1797	check_move_on (object *op, object *originator, int flags)
1757	{	1798	{
		1799	if (op->flag [FLAG_NO_APPLY])
		1800	return 0;
		1801
1758	object *tmp;	1802	object *tmp;
1759	tag_t tag;
1760	mapstruct *m=op->map;	1803	maptile *m = op->map;
1761	int x=op->x, y=op->y;	1804	int x = op->x, y = op->y;
1762	MoveType move_on, move_slow, move_block;
1763		1805
1764	if(QUERY_FLAG(op,FLAG_NO_APPLY))	1806	mapspace &ms = m->at (x, y);
1765	return 0;
1766		1807
1767	tag = op->count;	1808	ms.update ();
1768		1809
1769	move_on = GET_MAP_MOVE_ON(op->map, op->x, op->y);	1810	MoveType move_on = ms.move_on;
1770	move_slow = GET_MAP_MOVE_SLOW(op->map, op->x, op->y);	1811	MoveType move_slow = ms.move_slow;
1771	move_block = GET_MAP_MOVE_BLOCK(op->map, op->x, op->y);	1812	MoveType move_block = ms.move_block;
1772		1813
1773	/* if nothing on this space will slow op down or be applied,	1814	/* if nothing on this space will slow op down or be applied,
1774	* no need to do checking below. have to make sure move_type	1815	* no need to do checking below. have to make sure move_type
1775	* is set, as lots of objects don't have it set - we treat that	1816	* is set, as lots of objects don't have it set - we treat that
1776	* as walking.	1817	* as walking.
1777	*/	1818	*/
1778	if (op->move_type && !(op->move_type & move_on) && !(op->move_type & move_slow))	1819	if (op->move_type && !(op->move_type & move_on) && !(op->move_type & move_slow))
1779	return 0;	1820	return 0;
1780		1821
1781	/* This is basically inverse logic of that below - basically,	1822	/* This is basically inverse logic of that below - basically,
1782	* if the object can avoid the move on or slow move, they do so,	1823	* if the object can avoid the move on or slow move, they do so,
1783	* but can't do it if the alternate movement they are using is	1824	* but can't do it if the alternate movement they are using is
1784	* blocked. Logic on this seems confusing, but does seem correct.	1825	* blocked. Logic on this seems confusing, but does seem correct.
1785	*/	1826	*/
1786	if ((op->move_type & ~move_on & ~move_block) != 0 &&	1827	if ((op->move_type & ~move_on & ~move_block) != 0 && (op->move_type & ~move_slow & ~move_block) != 0)
1787	(op->move_type & ~move_slow & ~move_block) != 0) return 0;	1828	return 0;
1788		1829
1789	/* The objects have to be checked from top to bottom.	1830	/* The objects have to be checked from top to bottom.
1790	* Hence, we first go to the top:	1831	* Hence, we first go to the top:
1791	*/	1832	*/
1792		1833	for (object *next, *tmp = ms.top; tmp; tmp = next)
1793	for (tmp=GET_MAP_OB(op->map, op->x, op->y); tmp!=NULL &&
1794	tmp->above!=NULL; tmp=tmp->above) {
1795	/* Trim the search when we find the first other spell effect
1796	* this helps performance so that if a space has 50 spell objects,
1797	* we don't need to check all of them.
1798	*/
1799	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG(tmp, FLAG_NO_PICK)) break;
1800	}	1834	{
1801	for(;tmp!=NULL; tmp=tmp->below) {	1835	next = tmp->below;
		1836
		1837	if (tmp == op)
1802	if (tmp == op) continue; /* Can't apply yourself */	1838	continue; /* Can't apply yourself */
1803		1839
1804	/* Check to see if one of the movement types should be slowed down.	1840	/* Check to see if one of the movement types should be slowed down.
1805	* Second check makes sure that the movement types not being slowed	1841	* Second check makes sure that the movement types not being slowed
1806	* (~slow_move) is not blocked on this space - just because the	1842	* (~slow_move) is not blocked on this space - just because the
1807	* space doesn't slow down swimming (for example), if you can't actually	1843	* space doesn't slow down swimming (for example), if you can't actually
1808	* swim on that space, can't use it to avoid the penalty.	1844	* swim on that space, can't use it to avoid the penalty.
1809	*/	1845	*/
1810	if (!QUERY_FLAG(op, FLAG_WIZPASS)) {	1846	if (!op->flag [FLAG_WIZPASS])
		1847	{
1811	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||	1848	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||
1812	((op->move_type & tmp->move_slow) &&
1813	(op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0)) {	1849	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))
1814		1850	{
1815	float diff;
1816
1817	diff = tmp->move_slow_penalty*FABS(op->speed);	1851	float diff = tmp->move_slow_penalty * fabs (op->speed);
1818	if (op->type == PLAYER) {	1852
		1853	if (op->is_player ())
1819	if ((QUERY_FLAG(tmp, FLAG_IS_HILLY) && find_skill_by_number(op, SK_CLIMBING)) ||	1854	if ((tmp->flag [FLAG_IS_HILLY ] && find_skill_by_number (op, SK_CLIMBING)) ||
1820	(QUERY_FLAG(tmp, FLAG_IS_WOODED) && find_skill_by_number(op, SK_WOODSMAN))) {	1855	(tmp->flag [FLAG_IS_WOODED] && find_skill_by_number (op, SK_WOODSMAN)))
1821	diff /= 4.0;	1856	diff /= 4.0;
1822	}	1857
1823	}
1824	op->speed_left -= diff;	1858	op->speed_left -= diff;
1825	}	1859	}
1826	}	1860	}
1827		1861
1828	/* Basically same logic as above, except now for actual apply. */	1862	/* Basically same logic as above, except now for actual apply. */
1829	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||	1863	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||
1830	((op->move_type & tmp->move_on) &&
1831	(op->move_type & ~tmp->move_on & ~tmp->move_block)==0)) {	1864	((op->move_type & tmp->move_on) && (op->move_type & ~tmp->move_on & ~tmp->move_block) == 0))
		1865	{
		1866	if ((flags & INS_NO_AUTO_EXIT)
		1867	&& (tmp->type == EXIT || tmp->type == TELEPORTER
		1868	|| tmp->type == HOLE || tmp->type == TRAPDOOR)) //TODO: temporary, fix exits instead
		1869	continue;
1832		1870
1833	move_apply(tmp, op, originator);	1871	move_apply (tmp, op, originator);
		1872
1834	if (was_destroyed (op, tag))	1873	if (op->destroyed ())
1835	return 1;	1874	return 1;
1836		1875
1837	/* what the person/creature stepped onto has moved the object	1876	/* what the person/creature stepped onto has moved the object
1838	* someplace new. Don't process any further - if we did,	1877	* someplace new. Don't process any further - if we did,
1839	* have a feeling strange problems would result.	1878	* have a feeling strange problems would result.
1840	*/	1879	*/
1841	if (op->map != m || op->x != x || op->y != y) return 0;	1880	if (op->map != m || op->x != x || op->y != y)
		1881	return 0;
1842	}	1882	}
1843	}	1883	}
		1884
1844	return 0;	1885	return 0;
1845	}	1886	}
1846		1887
1847	/*	1888	/*
1848	* present_arch(arch, map, x, y) searches for any objects with	1889	* present_arch(arch, map, x, y) searches for any objects with
1849	* a matching archetype at the given map and coordinates.	1890	* a matching archetype at the given map and coordinates.
1850	* The first matching object is returned, or NULL if none.	1891	* The first matching object is returned, or NULL if none.
1851	*/	1892	*/
1852		1893	object *
1853	object *present_arch(const archetype *at, mapstruct *m, int x, int y) {	1894	present_arch (const archetype *at, maptile *m, int x, int y)
1854	object *tmp;	1895	{
1855	if(m==NULL || out_of_map(m,x,y)) {	1896	if (!m || out_of_map (m, x, y))
		1897	{
1856	LOG(llevError,"Present_arch called outside map.\n");	1898	LOG (llevError, "Present_arch called outside map.\n");
1857	return NULL;	1899	return NULL;
1858	}	1900	}
1859	for(tmp=GET_MAP_OB(m,x,y); tmp != NULL; tmp = tmp->above)	1901
1860	if(tmp->arch == at)	1902	for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)
		1903	if (tmp->arch->archname == at->archname)
1861	return tmp;	1904	return tmp;
		1905
1862	return NULL;	1906	return NULL;
1863	}	1907	}
1864		1908
1865	/*	1909	/*
1866	* present(type, map, x, y) searches for any objects with	1910	* present(type, map, x, y) searches for any objects with
1867	* a matching type variable at the given map and coordinates.	1911	* a matching type variable at the given map and coordinates.
1868	* The first matching object is returned, or NULL if none.	1912	* The first matching object is returned, or NULL if none.
1869	*/	1913	*/
1870		1914	object *
1871	object *present(unsigned char type,mapstruct *m, int x,int y) {	1915	present (unsigned char type, maptile *m, int x, int y)
1872	object *tmp;	1916	{
1873	if(out_of_map(m,x,y)) {	1917	if (out_of_map (m, x, y))
		1918	{
1874	LOG(llevError,"Present called outside map.\n");	1919	LOG (llevError, "Present called outside map.\n");
1875	return NULL;	1920	return NULL;
1876	}	1921	}
1877	for(tmp=GET_MAP_OB(m,x,y);tmp!=NULL;tmp=tmp->above)	1922
		1923	for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)
1878	if(tmp->type==type)	1924	if (tmp->type == type)
1879	return tmp;	1925	return tmp;
		1926
1880	return NULL;	1927	return NULL;
1881	}	1928	}
1882		1929
1883	/*	1930	/*
1884	* present_in_ob(type, object) searches for any objects with	1931	* present_in_ob(type, object) searches for any objects with
1885	* a matching type variable in the inventory of the given object.	1932	* a matching type variable in the inventory of the given object.
1886	* The first matching object is returned, or NULL if none.	1933	* The first matching object is returned, or NULL if none.
1887	*/	1934	*/
1888		1935	object *
1889	object *present_in_ob(unsigned char type, const object *op) {	1936	present_in_ob (unsigned char type, const object *op)
1890	object *tmp;	1937	{
1891	for(tmp=op->inv;tmp!=NULL;tmp=tmp->below)	1938	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
1892	if(tmp->type==type)	1939	if (tmp->type == type)
1893	return tmp;	1940	return tmp;
		1941
1894	return NULL;	1942	return NULL;
1895	}	1943	}
1896		1944
1897	/*	1945	/*
1898	* present_in_ob (type, str, object) searches for any objects with	1946	* present_in_ob (type, str, object) searches for any objects with
…		…
1906	* str is the string to match against. Note that we match against	1954	* str is the string to match against. Note that we match against
1907	* the object name, not the archetype name. this is so that the	1955	* the object name, not the archetype name. this is so that the
1908	* spell code can use one object type (force), but change it's name	1956	* spell code can use one object type (force), but change it's name
1909	* to be unique.	1957	* to be unique.
1910	*/	1958	*/
1911		1959	object *
1912	object *present_in_ob_by_name(int type, const char *str, const object *op) {	1960	present_in_ob_by_name (int type, const char *str, const object *op)
1913	object *tmp;	1961	{
1914
1915	for(tmp=op->inv; tmp!=NULL; tmp=tmp->below) {	1962	for (object *tmp = op->inv; tmp; tmp = tmp->below)
1916	if ((type==-1 || tmp->type==type) && (!strcmp(str, tmp->name)))	1963	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))
1917	return tmp;	1964	return tmp;
1918	}	1965
1919	return NULL;	1966	return 0;
1920	}	1967	}
1921		1968
1922	/*	1969	/*
1923	* present_arch_in_ob(archetype, object) searches for any objects with	1970	* present_arch_in_ob(archetype, object) searches for any objects with
1924	* a matching archetype in the inventory of the given object.	1971	* a matching archetype in the inventory of the given object.
1925	* The first matching object is returned, or NULL if none.	1972	* The first matching object is returned, or NULL if none.
1926	*/	1973	*/
1927		1974	object *
1928	object *present_arch_in_ob(const archetype *at, const object *op) {	1975	present_arch_in_ob (const archetype *at, const object *op)
1929	object *tmp;	1976	{
1930	for(tmp=op->inv;tmp!=NULL;tmp=tmp->below)	1977	for (object *tmp = op->inv; tmp; tmp = tmp->below)
1931	if( tmp->arch == at)	1978	if (tmp->arch->archname == at->archname)
1932	return tmp;	1979	return tmp;
		1980
1933	return NULL;	1981	return NULL;
1934	}	1982	}
1935		1983
1936	/*	1984	/*
1937	* activate recursively a flag on an object inventory	1985	* activate recursively a flag on an object inventory
1938	*/	1986	*/
		1987	void
1939	void flag_inv(object*op, int flag){	1988	flag_inv (object *op, int flag)
1940	object *tmp;	1989	{
1941	if(op->inv)
1942	for(tmp = op->inv; tmp != NULL; tmp = tmp->below){	1990	for (object *tmp = op->inv; tmp; tmp = tmp->below)
1943	SET_FLAG(tmp, flag);	1991	{
		1992	tmp->set_flag (flag);
1944	flag_inv(tmp,flag);	1993	flag_inv (tmp, flag);
1945	}	1994	}
		1995	}
		1996
1946	}/*	1997	/*
1947	* desactivate recursively a flag on an object inventory	1998	* deactivate recursively a flag on an object inventory
1948	*/	1999	*/
		2000	void
1949	void unflag_inv(object*op, int flag){	2001	unflag_inv (object *op, int flag)
1950	object *tmp;	2002	{
1951	if(op->inv)
1952	for(tmp = op->inv; tmp != NULL; tmp = tmp->below){	2003	for (object *tmp = op->inv; tmp; tmp = tmp->below)
1953	CLEAR_FLAG(tmp, flag);	2004	{
		2005	tmp->clr_flag (flag);
1954	unflag_inv(tmp,flag);	2006	unflag_inv (tmp, flag);
1955	}	2007	}
1956	}
1957
1958	/*
1959	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in
1960	* all it's inventory (recursively).
1961	* If checksums are used, a player will get set_cheat called for
1962	* him/her-self and all object carried by a call to this function.
1963	*/
1964
1965	void set_cheat(object *op) {
1966	SET_FLAG(op, FLAG_WAS_WIZ);
1967	flag_inv(op, FLAG_WAS_WIZ);
1968	}	2008	}
1969		2009
1970	/*	2010	/*
1971	* find_free_spot(object, map, x, y, start, stop) will search for	2011	* find_free_spot(object, map, x, y, start, stop) will search for
1972	* a spot at the given map and coordinates which will be able to contain	2012	* a spot at the given map and coordinates which will be able to contain
…		…
1974	* to search (see the freearr_x/y[] definition).	2014	* to search (see the freearr_x/y[] definition).
1975	* It returns a random choice among the alternatives found.	2015	* It returns a random choice among the alternatives found.
1976	* start and stop are where to start relative to the free_arr array (1,9	2016	* start and stop are where to start relative to the free_arr array (1,9
1977	* does all 4 immediate directions). This returns the index into the	2017	* does all 4 immediate directions). This returns the index into the
1978	* array of the free spot, -1 if no spot available (dir 0 = x,y)	2018	* array of the free spot, -1 if no spot available (dir 0 = x,y)
1979	* Note - this only checks to see if there is space for the head of the
1980	* object - if it is a multispace object, this should be called for all
1981	* pieces.
1982	* Note2: This function does correctly handle tiled maps, but does not	2019	* Note: This function does correctly handle tiled maps, but does not
1983	* inform the caller. However, insert_ob_in_map will update as	2020	* inform the caller. However, insert_ob_in_map will update as
1984	* necessary, so the caller shouldn't need to do any special work.	2021	* necessary, so the caller shouldn't need to do any special work.
1985	* Note - updated to take an object instead of archetype - this is necessary	2022	* Note - updated to take an object instead of archetype - this is necessary
1986	* because arch_blocked (now ob_blocked) needs to know the movement type	2023	* because arch_blocked (now ob_blocked) needs to know the movement type
1987	* to know if the space in question will block the object. We can't use	2024	* to know if the space in question will block the object. We can't use
1988	* the archetype because that isn't correct if the monster has been	2025	* the archetype because that isn't correct if the monster has been
1989	* customized, changed states, etc.	2026	* customized, changed states, etc.
1990	*/	2027	*/
1991		2028	int
1992	int find_free_spot(const object *ob, mapstruct *m,int x,int y,int start,int stop) {	2029	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)
		2030	{
		2031	int altern[SIZEOFFREE];
1993	int i,index=0, flag;	2032	int index = 0, flag;
1994	static int altern[SIZEOFFREE];
1995		2033
1996	for(i=start;i<stop;i++) {	2034	for (int i = start; i < stop; i++)
1997	flag = ob_blocked(ob,m,x+freearr_x[i],y+freearr_y[i]);	2035	{
1998	if(!flag)	2036	mapxy pos (m, x, y); pos.move (i);
		2037
		2038	if (!pos.normalise ())
		2039	continue;
		2040
		2041	mapspace &ms = *pos;
		2042
		2043	if (ms.flags () & P_IS_ALIVE)
		2044	continue;
		2045
		2046	/* However, often
		2047	* ob doesn't have any move type (when used to place exits)
		2048	* so the AND operation in OB_TYPE_MOVE_BLOCK doesn't work.
		2049	*/
		2050	if (ob && ob->move_type == 0 && ms.move_block != MOVE_ALL)
		2051	{
1999	altern[index++]=i;	2052	altern [index++] = i;
		2053	continue;
		2054	}
2000		2055
2001	/* Basically, if we find a wall on a space, we cut down the search size.	2056	/* Basically, if we find a wall on a space, we cut down the search size.
2002	* In this way, we won't return spaces that are on another side of a wall.	2057	* In this way, we won't return spaces that are on another side of a wall.
2003	* This mostly work, but it cuts down the search size in all directions -	2058	* This mostly work, but it cuts down the search size in all directions -
2004	* if the space being examined only has a wall to the north and empty	2059	* if the space being examined only has a wall to the north and empty
2005	* spaces in all the other directions, this will reduce the search space	2060	* spaces in all the other directions, this will reduce the search space
2006	* to only the spaces immediately surrounding the target area, and	2061	* to only the spaces immediately surrounding the target area, and
2007	* won't look 2 spaces south of the target space.	2062	* won't look 2 spaces south of the target space.
2008	*/	2063	*/
2009	else if ((flag & AB_NO_PASS) && maxfree[i]<stop)	2064	if (ms.move_block == MOVE_ALL && maxfree[i] < stop)
		2065	{
2010	stop=maxfree[i];	2066	stop = maxfree[i];
2011	}	2067	continue;
2012	if(!index) return -1;	2068	}
2013	return altern[RANDOM()%index];
2014	}
2015		2069
		2070	/* Note it is intentional that we check ob - the movement type of the
		2071	* head of the object should correspond for the entire object.
		2072	*/
		2073	if (OB_TYPE_MOVE_BLOCK (ob, ms.move_block))
		2074	continue;
		2075
		2076	if (ob->blocked (pos.m, pos.x, pos.y))
		2077	continue;
		2078
		2079	altern [index++] = i;
		2080	}
		2081
		2082	if (!index)
		2083	return -1;
		2084
		2085	return altern [rndm (index)];
		2086	}
		2087
2016	/*	2088	/*
2017	* find_first_free_spot(archetype, mapstruct, x, y) works like	2089	* find_first_free_spot(archetype, maptile, x, y) works like
2018	* find_free_spot(), but it will search max number of squares.	2090	* find_free_spot(), but it will search max number of squares.
2019	* But it will return the first available spot, not a random choice.	2091	* But it will return the first available spot, not a random choice.
2020	* Changed 0.93.2: Have it return -1 if there is no free spot available.	2092	* Changed 0.93.2: Have it return -1 if there is no free spot available.
2021	*/	2093	*/
2022		2094	int
2023	int find_first_free_spot(const object *ob, mapstruct *m,int x,int y) {	2095	find_first_free_spot (const object *ob, maptile *m, int x, int y)
2024	int i;	2096	{
2025	for(i=0;i<SIZEOFFREE;i++) {	2097	for (int i = 0; i < SIZEOFFREE; i++)
2026	if(!ob_blocked(ob,m,x+freearr_x[i],y+freearr_y[i]))	2098	if (!ob->blocked (m, x + freearr_x[i], y + freearr_y[i]))
2027	return i;	2099	return i;
2028	}	2100
2029	return -1;	2101	return -1;
2030	}	2102	}
2031		2103
2032	/*	2104	/*
2033	* The function permute(arr, begin, end) randomly reorders the array	2105	* The function permute(arr, begin, end) randomly reorders the array
2034	* arr[begin..end-1].	2106	* arr[begin..end-1].
		2107	* now uses a fisher-yates shuffle, old permute was broken
2035	*/	2108	*/
		2109	static void
2036	static void permute(int *arr, int begin, int end)	2110	permute (int *arr, int begin, int end)
2037	{	2111	{
2038	int i, j, tmp, len;	2112	arr += begin;
		2113	end -= begin;
2039		2114
2040	len = end-begin;	2115	while (--end)
2041	for(i = begin; i < end; i++)	2116	swap (arr [end], arr [rndm (end + 1)]);
2042	{
2043	j = begin+RANDOM()%len;
2044
2045	tmp = arr[i];
2046	arr[i] = arr[j];
2047	arr[j] = tmp;
2048	}
2049	}	2117	}
2050		2118
2051	/* new function to make monster searching more efficient, and effective!	2119	/* new function to make monster searching more efficient, and effective!
2052	* This basically returns a randomized array (in the passed pointer) of	2120	* This basically returns a randomized array (in the passed pointer) of
2053	* the spaces to find monsters. In this way, it won't always look for	2121	* the spaces to find monsters. In this way, it won't always look for
2054	* monsters to the north first. However, the size of the array passed	2122	* monsters to the north first. However, the size of the array passed
2055	* covers all the spaces, so within that size, all the spaces within	2123	* covers all the spaces, so within that size, all the spaces within
2056	* the 3x3 area will be searched, just not in a predictable order.	2124	* the 3x3 area will be searched, just not in a predictable order.
2057	*/	2125	*/
		2126	void
2058	void get_search_arr(int *search_arr)	2127	get_search_arr (int *search_arr)
2059	{	2128	{
2060	int i;	2129	int i;
2061		2130
2062	for(i = 0; i < SIZEOFFREE; i++)	2131	for (i = 0; i < SIZEOFFREE; i++)
2063	{
2064	search_arr[i] = i;	2132	search_arr[i] = i;
2065	}
2066		2133
2067	permute(search_arr, 1, SIZEOFFREE1+1);	2134	permute (search_arr, 1, SIZEOFFREE1 + 1);
2068	permute(search_arr, SIZEOFFREE1+1, SIZEOFFREE2+1);	2135	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);
2069	permute(search_arr, SIZEOFFREE2+1, SIZEOFFREE);	2136	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);
2070	}	2137	}
2071		2138
2072	/*	2139	/*
2073	* find_dir(map, x, y, exclude) will search some close squares in the	2140	* find_dir(map, x, y, exclude) will search some close squares in the
2074	* given map at the given coordinates for live objects.	2141	* given map at the given coordinates for live objects.
…		…
2079	* Perhaps incorrectly, but I'm making the assumption that exclude	2146	* Perhaps incorrectly, but I'm making the assumption that exclude
2080	* is actually want is going to try and move there. We need this info	2147	* is actually want is going to try and move there. We need this info
2081	* because we have to know what movement the thing looking to move	2148	* because we have to know what movement the thing looking to move
2082	* there is capable of.	2149	* there is capable of.
2083	*/	2150	*/
2084		2151	int
2085	int find_dir(mapstruct *m, int x, int y, object *exclude) {	2152	find_dir (maptile *m, int x, int y, object *exclude)
		2153	{
2086	int i,max=SIZEOFFREE, mflags;	2154	int max = SIZEOFFREE, mflags;
2087	sint16 nx, ny;
2088	object *tmp;
2089	mapstruct *mp;
2090	MoveType blocked, move_type;	2155	MoveType move_type;
2091		2156
2092	if (exclude && exclude->head) {	2157	if (exclude && exclude->head_ () != exclude)
		2158	{
2093	exclude = exclude->head;	2159	exclude = exclude->head;
2094	move_type = exclude->move_type;	2160	move_type = exclude->move_type;
2095	} else {	2161	}
		2162	else
		2163	{
2096	/* If we don't have anything, presume it can use all movement types. */	2164	/* If we don't have anything, presume it can use all movement types. */
2097	move_type=MOVE_ALL;	2165	move_type = MOVE_ALL;
		2166	}
		2167
		2168	for (int i = 1; i < max; i++)
2098	}	2169	{
		2170	mapxy pos (m, x, y);
		2171	pos.move (i);
2099		2172
2100	for(i=1;i<max;i++) {	2173	if (!pos.normalise ())
2101	mp = m;
2102	nx = x + freearr_x[i];	2174	max = maxfree[i];
2103	ny = y + freearr_y[i];	2175	else
		2176	{
		2177	mapspace &ms = *pos;
2104		2178
2105	mflags = get_map_flags(m, &mp, nx, ny, &nx, &ny);	2179	if ((move_type & ms.move_block) == move_type)
2106	if (mflags & P_OUT_OF_MAP) {
2107	max = maxfree[i];	2180	max = maxfree [i];
2108	} else {
2109	blocked = GET_MAP_MOVE_BLOCK(mp, nx, ny);
2110
2111	if ((move_type & blocked) == move_type) {
2112	max=maxfree[i];
2113	} else if (mflags & P_IS_ALIVE) {	2181	else if (ms.flags () & P_IS_ALIVE)
2114	for (tmp=GET_MAP_OB(mp,nx,ny); tmp!= NULL; tmp=tmp->above) {	2182	{
2115	if ((QUERY_FLAG(tmp,FLAG_MONSTER) || tmp->type==PLAYER) &&	2183	for (object *tmp = ms.bot; tmp; tmp = tmp->above)
		2184	if ((tmp->flag [FLAG_MONSTER] || tmp->is_player ())
2116	(tmp != exclude ||(tmp->head && tmp->head != exclude))) {	2185	&& (tmp != exclude || (tmp->head_ () != tmp && tmp->head_ () != exclude)))
2117	break;
2118	}
2119	}
2120	if(tmp) {
2121	return freedir[i];	2186	return freedir [i];
2122	}
2123	}	2187	}
2124	}	2188	}
2125	}	2189	}
		2190
2126	return 0;	2191	return 0;
2127	}	2192	}
2128		2193
2129	/*	2194	/*
2130	* distance(object 1, object 2) will return the square of the	2195	* distance(object 1, object 2) will return the square of the
2131	* distance between the two given objects.	2196	* distance between the two given objects.
2132	*/	2197	*/
2133		2198	int
2134	int distance(const object *ob1, const object *ob2) {	2199	distance (const object *ob1, const object *ob2)
2135	int i;	2200	{
2136	i= (ob1->x - ob2->x)*(ob1->x - ob2->x)+	2201	return (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);
2137	(ob1->y - ob2->y)*(ob1->y - ob2->y);
2138	return i;
2139	}	2202	}
2140		2203
2141	/*	2204	/*
2142	* find_dir_2(delta-x,delta-y) will return a direction in which	2205	* find_dir_2(delta-x,delta-y) will return a direction value
2143	* an object which has subtracted the x and y coordinates of another	2206	* for running into direct [dx, dy].
2144	* object, needs to travel toward it.	2207	* (the opposite of crossfire's find_dir_2!)
2145	*/	2208	*/
2146		2209	int
2147	int find_dir_2(int x, int y) {	2210	find_dir_2 (int x, int y)
		2211	{
		2212	#if 1 // new algorithm
		2213	// this works by putting x, y into 16 sectors, which
		2214	// are not equal sized, but are a better approximation
		2215	// then the old algorithm, and then using a mapping
		2216	// table to map it into a direction value.
		2217	// basically, it maps these comparisons to each bit
		2218	// bit #3: x < 0
		2219	// bit #2: y < 0
		2220	// bit #1: x > y
		2221	// bit #0: x > 2y
		2222
		2223	static const uint8 dir[16] = {
		2224	4, 5, 4, 3,
		2225	2, 1, 2, 3,
		2226	6, 5, 6, 7,
		2227	8, 1, 8, 7,
		2228	};
		2229	int sector = 0;
		2230
		2231	// this is a bit ugly, but more likely to result in branchless code
		2232	sector |= x < 0 ? 8 : 0;
		2233	x = x < 0 ? -x : x; // abs
		2234
		2235	sector |= y < 0 ? 4 : 0;
		2236	y = y < 0 ? -y : y; // abs
		2237
		2238	if (x > y)
		2239	{
		2240	sector |= 2;
		2241
		2242	if (x > y * 2)
		2243	sector |= 1;
		2244	}
		2245	else
		2246	{
		2247	if (y > x * 2)
		2248	sector |= 1;
		2249	else if (!y)
		2250	return 0; // x == 0 here
		2251	}
		2252
		2253	return dir [sector];
		2254	#else // old algorithm
2148	int q;	2255	int q;
2149		2256
2150	if(y)	2257	if (y)
2151	q=x*100/y;	2258	q = 128 * x / y;
2152	else if (x)	2259	else if (x)
2153	q= -300*x;	2260	q = -512 * x; // to make it > 309
2154	else	2261	else
2155	return 0;	2262	return 0;
2156		2263
2157	if(y>0) {	2264	if (y > 0)
2158	if(q < -242)	2265	{
		2266	if (q < -309) return 7;
		2267	if (q < -52) return 6;
		2268	if (q < 52) return 5;
		2269	if (q < 309) return 4;
		2270
2159	return 3 ;	2271	return 3;
2160	if (q < -41)	2272	}
		2273	else
		2274	{
		2275	if (q < -309) return 3;
		2276	if (q < -52) return 2;
		2277	if (q < 52) return 1;
		2278	if (q < 309) return 8;
		2279
2161	return 2 ;	2280	return 7;
2162	if (q < 41)
2163	return 1 ;
2164	if (q < 242)
2165	return 8 ;
2166	return 7 ;
2167	}	2281	}
2168		2282	#endif
2169	if (q < -242)
2170	return 7 ;
2171	if (q < -41)
2172	return 6 ;
2173	if (q < 41)
2174	return 5 ;
2175	if (q < 242)
2176	return 4 ;
2177
2178	return 3 ;
2179	}
2180
2181	/*
2182	* absdir(int): Returns a number between 1 and 8, which represent
2183	* the "absolute" direction of a number (it actually takes care of
2184	* "overflow" in previous calculations of a direction).
2185	*/
2186
2187	int absdir(int d) {
2188	while(d<1) d+=8;
2189	while(d>8) d-=8;
2190	return d;
2191	}	2283	}
2192		2284
2193	/*	2285	/*
2194	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is	2286	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is
2195	* between two directions (which are expected to be absolute (see absdir())	2287	* between two directions (which are expected to be absolute (see absdir())
2196	*/	2288	*/
2197		2289	int
2198	int dirdiff(int dir1, int dir2) {	2290	dirdiff (int dir1, int dir2)
2199	int d;	2291	{
2200	d = abs(dir1 - dir2);	2292	int d = abs (dir1 - dir2);
2201	if(d>4)	2293
2202	d = 8 - d;	2294	return d > 4 ? 8 - d : d;
2203	return d;
2204	}	2295	}
2205		2296
2206	/* peterm:	2297	/* peterm:
2207	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.	2298	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.
2208	* Basically, this is a table of directions, and what directions	2299	* Basically, this is a table of directions, and what directions
…		…
2210	* This basically means that if direction is 15, then it could either go	2301	* This basically means that if direction is 15, then it could either go
2211	* direction 4, 14, or 16 to get back to where we are.	2302	* direction 4, 14, or 16 to get back to where we are.
2212	* Moved from spell_util.c to object.c with the other related direction	2303	* Moved from spell_util.c to object.c with the other related direction
2213	* functions.	2304	* functions.
2214	*/	2305	*/
2215
2216	int reduction_dir[SIZEOFFREE][3] = {	2306	static const int reduction_dir[SIZEOFFREE][3] = {
2217	{0,0,0}, /* 0 */	2307	{0, 0, 0}, /* 0 */
2218	{0,0,0}, /* 1 */	2308	{0, 0, 0}, /* 1 */
2219	{0,0,0}, /* 2 */	2309	{0, 0, 0}, /* 2 */
2220	{0,0,0}, /* 3 */	2310	{0, 0, 0}, /* 3 */
2221	{0,0,0}, /* 4 */	2311	{0, 0, 0}, /* 4 */
2222	{0,0,0}, /* 5 */	2312	{0, 0, 0}, /* 5 */
2223	{0,0,0}, /* 6 */	2313	{0, 0, 0}, /* 6 */
2224	{0,0,0}, /* 7 */	2314	{0, 0, 0}, /* 7 */
2225	{0,0,0}, /* 8 */	2315	{0, 0, 0}, /* 8 */
2226	{8,1,2}, /* 9 */	2316	{8, 1, 2}, /* 9 */
2227	{1,2,-1}, /* 10 */	2317	{1, 2, -1}, /* 10 */
2228	{2,10,12}, /* 11 */	2318	{2, 10, 12}, /* 11 */
2229	{2,3,-1}, /* 12 */	2319	{2, 3, -1}, /* 12 */
2230	{2,3,4}, /* 13 */	2320	{2, 3, 4}, /* 13 */
2231	{3,4,-1}, /* 14 */	2321	{3, 4, -1}, /* 14 */
2232	{4,14,16}, /* 15 */	2322	{4, 14, 16}, /* 15 */
2233	{5,4,-1}, /* 16 */	2323	{5, 4, -1}, /* 16 */
2234	{4,5,6}, /* 17 */	2324	{4, 5, 6}, /* 17 */
2235	{6,5,-1}, /* 18 */	2325	{6, 5, -1}, /* 18 */
2236	{6,20,18}, /* 19 */	2326	{6, 20, 18}, /* 19 */
2237	{7,6,-1}, /* 20 */	2327	{7, 6, -1}, /* 20 */
2238	{6,7,8}, /* 21 */	2328	{6, 7, 8}, /* 21 */
2239	{7,8,-1}, /* 22 */	2329	{7, 8, -1}, /* 22 */
2240	{8,22,24}, /* 23 */	2330	{8, 22, 24}, /* 23 */
2241	{8,1,-1}, /* 24 */	2331	{8, 1, -1}, /* 24 */
2242	{24,9,10}, /* 25 */	2332	{24, 9, 10}, /* 25 */
2243	{9,10,-1}, /* 26 */	2333	{9, 10, -1}, /* 26 */
2244	{10,11,-1}, /* 27 */	2334	{10, 11, -1}, /* 27 */
2245	{27,11,29}, /* 28 */	2335	{27, 11, 29}, /* 28 */
2246	{11,12,-1}, /* 29 */	2336	{11, 12, -1}, /* 29 */
2247	{12,13,-1}, /* 30 */	2337	{12, 13, -1}, /* 30 */
2248	{12,13,14}, /* 31 */	2338	{12, 13, 14}, /* 31 */
2249	{13,14,-1}, /* 32 */	2339	{13, 14, -1}, /* 32 */
2250	{14,15,-1}, /* 33 */	2340	{14, 15, -1}, /* 33 */
2251	{33,15,35}, /* 34 */	2341	{33, 15, 35}, /* 34 */
2252	{16,15,-1}, /* 35 */	2342	{16, 15, -1}, /* 35 */
2253	{17,16,-1}, /* 36 */	2343	{17, 16, -1}, /* 36 */
2254	{18,17,16}, /* 37 */	2344	{18, 17, 16}, /* 37 */
2255	{18,17,-1}, /* 38 */	2345	{18, 17, -1}, /* 38 */
2256	{18,19,-1}, /* 39 */	2346	{18, 19, -1}, /* 39 */
2257	{41,19,39}, /* 40 */	2347	{41, 19, 39}, /* 40 */
2258	{19,20,-1}, /* 41 */	2348	{19, 20, -1}, /* 41 */
2259	{20,21,-1}, /* 42 */	2349	{20, 21, -1}, /* 42 */
2260	{20,21,22}, /* 43 */	2350	{20, 21, 22}, /* 43 */
2261	{21,22,-1}, /* 44 */	2351	{21, 22, -1}, /* 44 */
2262	{23,22,-1}, /* 45 */	2352	{23, 22, -1}, /* 45 */
2263	{45,47,23}, /* 46 */	2353	{45, 47, 23}, /* 46 */
2264	{23,24,-1}, /* 47 */	2354	{23, 24, -1}, /* 47 */
2265	{24,9,-1}}; /* 48 */	2355	{24, 9, -1}
		2356	}; /* 48 */
2266		2357
2267	/* Recursive routine to step back and see if we can	2358	/* Recursive routine to step back and see if we can
2268	* find a path to that monster that we found. If not,	2359	* find a path to that monster that we found. If not,
2269	* we don't bother going toward it. Returns 1 if we	2360	* we don't bother going toward it. Returns 1 if we
2270	* can see a direct way to get it	2361	* can see a direct way to get it
2271	* Modified to be map tile aware -.MSW	2362	* Modified to be map tile aware -.MSW
2272	*/	2363	*/
2273		2364	int
2274
2275	int can_see_monsterP(mapstruct *m, int x, int y,int dir) {	2365	can_see_monsterP (maptile *m, int x, int y, int dir)
		2366	{
2276	sint16 dx, dy;	2367	sint16 dx, dy;
2277	int mflags;	2368	int mflags;
2278		2369
		2370	if (dir < 0)
2279	if(dir<0) return 0; /* exit condition: invalid direction */	2371	return 0; /* exit condition: invalid direction */
2280		2372
2281	dx = x + freearr_x[dir];	2373	dx = x + freearr_x[dir];
2282	dy = y + freearr_y[dir];	2374	dy = y + freearr_y[dir];
2283		2375
2284	mflags = get_map_flags(m, &m, dx, dy, &dx, &dy);	2376	mflags = get_map_flags (m, &m, dx, dy, &dx, &dy);
2285		2377
2286	/* This functional arguably was incorrect before - it was	2378	/* This functional arguably was incorrect before - it was
2287	* checking for P_WALL - that was basically seeing if	2379	* checking for P_WALL - that was basically seeing if
2288	* we could move to the monster - this is being more	2380	* we could move to the monster - this is being more
2289	* literal on if we can see it. To know if we can actually	2381	* literal on if we can see it. To know if we can actually
2290	* move to the monster, we'd need the monster passed in or	2382	* move to the monster, we'd need the monster passed in or
2291	* at least its move type.	2383	* at least its move type.
2292	*/	2384	*/
2293	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW)) return 0;	2385	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW))
		2386	return 0;
2294		2387
2295	/* yes, can see. */	2388	/* yes, can see. */
2296	if(dir < 9) return 1;	2389	if (dir < 9)
		2390	return 1;
		2391
2297	return can_see_monsterP(m, x, y, reduction_dir[dir][0]) |	2392	return can_see_monsterP (m, x, y, reduction_dir[dir][0])
2298	can_see_monsterP(m,x,y, reduction_dir[dir][1]) |	2393	| can_see_monsterP (m, x, y, reduction_dir[dir][1])
2299	can_see_monsterP(m,x,y, reduction_dir[dir][2]);	2394	| can_see_monsterP (m, x, y, reduction_dir[dir][2]);
2300	}	2395	}
2301		2396
2302
2303
2304	/*	2397	/*
2305	* can_pick(picker, item): finds out if an object is possible to be	2398	* can_pick(picker, item): finds out if an object is possible to be
2306	* picked up by the picker. Returnes 1 if it can be	2399	* picked up by the picker. Returnes 1 if it can be
2307	* picked up, otherwise 0.	2400	* picked up, otherwise 0.
2308	*	2401	*
2309	* Cf 0.91.3 - don't let WIZ's pick up anything - will likely cause	2402	* Cf 0.91.3 - don't let WIZ's pick up anything - will likely cause
2310	* core dumps if they do.	2403	* core dumps if they do.
2311	*	2404	*
2312	* Add a check so we can't pick up invisible objects (0.93.8)	2405	* Add a check so we can't pick up invisible objects (0.93.8)
2313	*/	2406	*/
2314		2407	int
2315	int can_pick(const object *who, const object *item) {	2408	can_pick (const object *who, const object *item)
2316	return /*QUERY_FLAG(who,FLAG_WIZ)||*/	2409	{
2317	(item->weight>0&&!QUERY_FLAG(item,FLAG_NO_PICK)&&	2410	return /*who->flag [FLAG_WIZ]|| */
2318	!QUERY_FLAG(item,FLAG_ALIVE)&&!item->invisible &&	2411	(item->weight > 0 && !item->flag [FLAG_NO_PICK] &&
2319	(who->type==PLAYER||item->weight<who->weight/3));	2412	!item->flag [FLAG_ALIVE] && !item->invisible && (who->is_player () || item->weight < who->weight / 3));
2320	}	2413	}
2321
2322		2414
2323	/*	2415	/*
2324	* create clone from object to another	2416	* create clone from object to another
2325	*/	2417	*/
2326	object *object_create_clone (object *asrc) {	2418	object *
2327	object *dst = NULL,*tmp,*src,*part,*prev, *item;	2419	object::deep_clone ()
		2420	{
		2421	assert (("deep_clone called on non-head object", is_head ()));
2328		2422
2329	if(!asrc) return NULL;	2423	object *dst = clone ();
2330	src = asrc;
2331	if(src->head)
2332	src = src->head;
2333		2424
2334	prev = NULL;	2425	object *prev = dst;
2335	for(part = src; part; part = part->more) {	2426	for (object *part = this->more; part; part = part->more)
2336	tmp = get_object();	2427	{
2337	copy_object(part,tmp);	2428	object *tmp = part->clone ();
2338	tmp->x -= src->x;
2339	tmp->y -= src->y;
2340	if(!part->head) {
2341	dst = tmp;
2342	tmp->head = NULL;
2343	} else {
2344	tmp->head = dst;	2429	tmp->head = dst;
2345	}
2346	tmp->more = NULL;
2347	if(prev)
2348	prev->more = tmp;	2430	prev->more = tmp;
2349	prev = tmp;	2431	prev = tmp;
2350	}	2432	}
2351	/*** copy inventory ***/	2433
2352	for(item = src->inv; item; item = item->below) {	2434	for (object *item = inv; item; item = item->below)
2353	(void) insert_ob_in_ob(object_create_clone(item),dst);	2435	insert_ob_in_ob (item->deep_clone (), dst);
2354	}
2355		2436
2356	return dst;	2437	return dst;
2357	}
2358
2359	/* return true if the object was destroyed, 0 otherwise */
2360	int was_destroyed (const object *op, tag_t old_tag)
2361	{
2362	/* checking for FLAG_FREED isn't necessary, but makes this function more
2363	* robust */
2364	return op->count != old_tag || QUERY_FLAG (op, FLAG_FREED);
2365	}
2366
2367	/* GROS - Creates an object using a string representing its content. */
2368	/* Basically, we save the content of the string to a temp file, then call */
2369	/* load_object on it. I admit it is a highly inefficient way to make things, */
2370	/* but it was simple to make and allows reusing the load_object function. */
2371	/* Remember not to use load_object_str in a time-critical situation. */
2372	/* Also remember that multiparts objects are not supported for now. */
2373
2374	object* load_object_str(const char *obstr)
2375	{
2376	object *op;
2377	char filename[MAX_BUF];
2378	sprintf(filename,"%s/cfloadobstr2044",settings.tmpdir);
2379
2380	FILE *tempfile=fopen(filename,"w");
2381	if (tempfile == NULL)
2382	{
2383	LOG(llevError,"Error - Unable to access load object temp file\n");
2384	return NULL;
2385	};
2386	fprintf(tempfile,obstr);
2387	fclose(tempfile);
2388
2389	op=get_object();
2390
2391	object_thawer thawer (filename);
2392
2393	if (thawer)
2394	load_object(thawer,op,0);
2395
2396	LOG(llevDebug," load str completed, object=%s\n", &op->name);
2397	CLEAR_FLAG(op,FLAG_REMOVED);
2398
2399	return op;
2400	}	2438	}
2401		2439
2402	/* This returns the first object in who's inventory that	2440	/* This returns the first object in who's inventory that
2403	* has the same type and subtype match.	2441	* has the same type and subtype match.
2404	* returns NULL if no match.	2442	* returns NULL if no match.
2405	*/	2443	*/
		2444	object *
2406	object *find_obj_by_type_subtype(const object *who, int type, int subtype)	2445	find_obj_by_type_subtype (const object *who, int type, int subtype)
2407	{	2446	{
2408	object *tmp;
2409
2410	for (tmp=who->inv; tmp; tmp=tmp->below)	2447	for (object *tmp = who->inv; tmp; tmp = tmp->below)
2411	if (tmp->type == type && tmp->subtype == subtype) return tmp;	2448	if (tmp->type == type && tmp->subtype == subtype)
		2449	return tmp;
2412		2450
2413	return NULL;	2451	return 0;
2414	}	2452	}
2415		2453
2416	/* If ob has a field named key, return the link from the list,	2454	/* Zero the key_values on op, decrementing the shared-string
2417	* otherwise return NULL.	2455	* refcounts and freeing the links.
2418	*	2456	*/
2419	* key must be a passed in shared string - otherwise, this won't	2457	void
2420	* do the desired thing.	2458	key_values::clear ()
2421	*/	2459	{
2422	key_value * get_ob_key_link(const object * ob, const char * key) {	2460	for (key_value *kvp = first; kvp; )
2423	key_value * link;
2424		2461	{
2425	for (link = ob->key_values; link != NULL; link = link->next) {	2462	key_value *next = kvp->next;
		2463	delete kvp;
		2464	kvp = next;
		2465	}
		2466
		2467	first = 0;
		2468	}
		2469
		2470	shstr_tmp
		2471	key_values::get (shstr_tmp key) const
		2472	{
		2473	for (key_value *kv = first; kv; kv = kv->next)
2426	if (link->key == key) {	2474	if (kv->key == key)
		2475	return kv->value;
		2476
		2477	return shstr ();
		2478	}
		2479
		2480	void
		2481	key_values::add (shstr_tmp key, shstr_tmp value)
		2482	{
		2483	key_value *kv = new key_value;
		2484
		2485	kv->next = first;
		2486	kv->key = key;
		2487	kv->value = value;
		2488
		2489	first = kv;
		2490	}
		2491
		2492	void
		2493	key_values::set (shstr_tmp key, shstr_tmp value)
		2494	{
		2495	for (key_value *kv = first; kv; kv = kv->next)
		2496	if (kv->key == key)
		2497	{
		2498	kv->value = value;
2427	return link;	2499	return;
		2500	}
		2501
		2502	add (key, value);
		2503	}
		2504
		2505	void
		2506	key_values::del (shstr_tmp key)
		2507	{
		2508	for (key_value **kvp = &first; *kvp; kvp = &(*kvp)->next)
		2509	if ((*kvp)->key == key)
		2510	{
		2511	key_value *kv = *kvp;
		2512	*kvp = (*kvp)->next;
		2513	delete kv;
		2514	return;
		2515	}
		2516	}
		2517
		2518	void
		2519	key_values::reverse ()
		2520	{
		2521	key_value *prev = 0;
		2522	key_value *head = first;
		2523
		2524	while (head)
		2525	{
		2526	key_value *node = head;
		2527	head = head->next;
		2528	node->next = prev;
		2529	prev = node;
		2530	}
		2531
		2532	first = prev;
		2533	}
		2534
		2535	key_values &
		2536	key_values::operator =(const key_values &kv)
		2537	{
		2538	clear ();
		2539
		2540	for (key_value *kvp = kv.first; kvp; kvp = kvp->next)
		2541	add (kvp->key, kvp->value);
		2542
		2543	reverse ();
		2544	}
		2545
		2546	object::depth_iterator::depth_iterator (object *container)
		2547	: iterator_base (container)
		2548	{
		2549	while (item->inv)
		2550	item = item->inv;
		2551	}
		2552
		2553	void
		2554	object::depth_iterator::next ()
		2555	{
		2556	if (item->below)
		2557	{
		2558	item = item->below;
		2559
		2560	while (item->inv)
		2561	item = item->inv;
		2562	}
		2563	else
		2564	item = item->env;
		2565	}
		2566
		2567	const char *
		2568	object::flag_desc (char *desc, int len) const
		2569	{
		2570	char *p = desc;
		2571	bool first = true;
		2572
		2573	*p = 0;
		2574
		2575	for (int i = 0; i < NUM_FLAGS; i++)
		2576	{
		2577	if (len <= 10) // magic constant!
		2578	{
		2579	snprintf (p, len, ",...");
		2580	break;
2428	}	2581	}
2429	}
2430
2431	return NULL;
2432	}
2433		2582
2434	/*	2583	if (flag [i])
2435	* Returns the value of op has an extra_field for key, or NULL.
2436	*
2437	* The argument doesn't need to be a shared string.
2438	*
2439	* The returned string is shared.
2440	*/
2441	const char * get_ob_key_value(const object * op, const char * const key) {
2442	key_value * link;
2443	const char * canonical_key;
2444
2445	canonical_key = shstr::find (key);
2446
2447	if (canonical_key == NULL) {
2448	/* 1. There being a field named key on any object
2449	* implies there'd be a shared string to find.
2450	* 2. Since there isn't, no object has this field.
2451	* 3. Therefore, *this* object doesn't have this field.
2452	*/	2584	{
2453	return NULL;	2585	int cnt = snprintf (p, len, "%s%d", first ? "" : ",", i);
2454	}	2586	len -= cnt;
2455		2587	p += cnt;
2456	/* This is copied from get_ob_key_link() above -	2588	first = false;
2457	* only 4 lines, and saves the function call overhead.
2458	*/
2459	for (link = op->key_values; link != NULL; link = link->next) {
2460	if (link->key == canonical_key) {
2461	return link->value;
2462	}	2589	}
2463	}	2590	}
		2591
		2592	return desc;
		2593	}
		2594
		2595	// return a suitable string describing an object in enough detail to find it
		2596	const char *
		2597	object::debug_desc (char *info) const
		2598	{
		2599	char flagdesc[512];
		2600	char info2[256 * 4];
		2601	char *p = info;
		2602
		2603	p += snprintf (p, 512, "{cnt:%d,uuid:%s,name:\"%s\"%s%s%s,flags:[%s],type:%d}",
		2604	count,
		2605	uuid.c_str (),
		2606	&name,
		2607	title ? ",title:\"" : "",
		2608	title ? (const char *)title : "",
		2609	title ? "\"" : "",
		2610	flag_desc (flagdesc, 512), type);
		2611
		2612	if (!flag[FLAG_REMOVED] && env)
		2613	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));
		2614
		2615	if (map)
		2616	p += snprintf (p, 256, "(on %s@%d+%d)", &map->path, x, y);
		2617
		2618	return info;
		2619	}
		2620
		2621	const char *
		2622	object::debug_desc () const
		2623	{
		2624	static char info[3][256 * 4];
		2625	static int info_idx;
		2626
		2627	return debug_desc (info [++info_idx % 3]);
		2628	}
		2629
		2630	struct region *
		2631	object::region () const
		2632	{
		2633	return map ? map->region (x, y)
		2634	: region::default_region ();
		2635	}
		2636
		2637	void
		2638	object::open_container (object *new_container)
		2639	{
		2640	if (container == new_container)
2464	return NULL;	2641	return;
2465	}
2466		2642
		2643	object *old_container = container;
2467		2644
2468	/*	2645	if (old_container)
2469	* Updates the canonical_key in op to value.
2470	*
2471	* canonical_key is a shared string (value doesn't have to be).
2472	*
2473	* Unless add_key is TRUE, it won't add fields, only change the value of existing
2474	* keys.
2475	*
2476	* Returns TRUE on success.
2477	*/
2478	int set_ob_key_value_s(object * op, const shstr &canonical_key, const char * value, int add_key) {
2479	key_value * field = NULL, *last=NULL;
2480		2646	{
2481	for (field=op->key_values; field != NULL; field=field->next) {	2647	if (INVOKE_OBJECT (CLOSE, old_container, ARG_OBJECT (this)))
2482	if (field->key != canonical_key) {	2648	return;
2483	last = field;	2649
2484	continue;	2650	#if 0
		2651	// remove the "Close old_container" object.
		2652	if (object *closer = old_container->inv)
		2653	if (closer->type == CLOSE_CON)
		2654	closer->destroy ();
		2655	#endif
		2656
		2657	// make sure the container is available
		2658	esrv_send_item (this, old_container);
		2659
		2660	old_container->flag [FLAG_APPLIED] = false;
		2661	container = 0;
		2662
		2663	// client needs item update to make it work, client bug requires this to be separate
		2664	esrv_update_item (UPD_FLAGS, this, old_container);
		2665
		2666	new_draw_info_format (NDI_UNIQUE, 0, this, "You close %s.", old_container->query_name ());
		2667	play_sound (sound_find ("chest_close"));
		2668	}
		2669
		2670	if (new_container)
		2671	{
		2672	if (INVOKE_OBJECT (OPEN, new_container, ARG_OBJECT (this)))
		2673	return;
		2674
		2675	// TODO: this does not seem to serve any purpose anymore?
		2676	#if 0
		2677	// insert the "Close Container" object.
		2678	if (archetype *closer = new_container->other_arch)
		2679	{
		2680	object *closer = new_container->other_arch->instance ();
		2681	closer->flag [FLAG_NO_MAP_SAVE] = 1;
		2682	new_container->insert (closer);
2485	}	2683	}
		2684	#endif
		2685
		2686	new_draw_info_format (NDI_UNIQUE, 0, this, "You open %s.", new_container->query_name ());
		2687
		2688	// make sure the container is available, client bug requires this to be separate
		2689	esrv_send_item (this, new_container);
		2690
		2691	new_container->flag [FLAG_APPLIED] = true;
		2692	container = new_container;
		2693
		2694	// client needs flag change
		2695	esrv_update_item (UPD_FLAGS, this, new_container);
		2696	esrv_send_inventory (this, new_container);
		2697	play_sound (sound_find ("chest_open"));
2486		2698	}
2487	if (value)	2699	// else if (!old_container->env && contr && contr->ns)
2488	field->value = value;	2700	// contr->ns->floorbox_reset ();
2489	else {	2701	}
2490	/* Basically, if the archetype has this key set,
2491	* we need to store the null value so when we save
2492	* it, we save the empty value so that when we load,
2493	* we get this value back again.
2494	*/
2495	if (get_ob_key_link (&op->arch->clone, canonical_key))
2496	field->value = 0;
2497	else
2498	{
2499	if (last) last->next = field->next;
2500	else op->key_values = field->next;
2501		2702
2502	delete field;	2703	object *
2503	}	2704	object::force_find (shstr_tmp name)
2504	}	2705	{
2505	return TRUE;	2706	/* cycle through his inventory to look for the MARK we want to
2506	}	2707	* place
2507	/* IF we get here, key doesn't exist */	2708	*/
		2709	for (object *tmp = inv; tmp; tmp = tmp->below)
		2710	if (tmp->type == FORCE && tmp->slaying == name)
		2711	return splay (tmp);
2508		2712
2509	/* No field, we'll have to add it. */	2713	return 0;
		2714	}
		2715
		2716	//-GPL
		2717
		2718	void
		2719	object::force_set_timer (int duration)
		2720	{
		2721	this->duration = 1;
		2722	this->speed_left = -1.f;
		2723
		2724	this->set_speed (duration ? 1.f / duration : 0.f);
		2725	}
		2726
		2727	object *
		2728	object::force_add (shstr_tmp name, int duration)
		2729	{
		2730	if (object *force = force_find (name))
		2731	force->destroy ();
		2732
		2733	object *force = archetype::get (FORCE_NAME);
		2734
		2735	force->slaying = name;
		2736	force->force_set_timer (duration);
		2737	force->flag [FLAG_APPLIED] = true;
		2738
		2739	return insert (force);
		2740	}
		2741
		2742	void
		2743	object::play_sound (faceidx sound) const
		2744	{
		2745	if (!sound)
		2746	return;
		2747
		2748	if (is_on_map ())
		2749	map->play_sound (sound, x, y);
		2750	else if (object *pl = in_player ())
		2751	pl->contr->play_sound (sound);
		2752	}
		2753
		2754	void
		2755	object::say_msg (const char *msg) const
		2756	{
		2757	if (is_on_map ())
		2758	map->say_msg (msg, x, y);
		2759	else if (object *pl = in_player ())
		2760	pl->contr->play_sound (sound);
		2761	}
		2762
		2763	void
		2764	object::make_noise ()
		2765	{
		2766	// we do not model noise in the map, so instead put
		2767	// a temporary light into the noise source
		2768	// could use the map instead, but that's less reliable for our
		2769	// goal, which is to make invisibility a bit harder to exploit
		2770
		2771	// currently only works sensibly for players
		2772	if (!is_player ())
		2773	return;
		2774
		2775	// find old force, or create new one
		2776	object *force = force_find (shstr_noise_force);
		2777
		2778	if (force)
		2779	force->speed_left = -1.f; // patch old speed up
		2780	else
2510		2781	{
2511	if (!add_key) {	2782	force = archetype::get (shstr_noise_force);
2512	return FALSE;	2783
2513	}	2784	force->slaying = shstr_noise_force;
2514	/* There isn't any good reason to store a null	2785	force->stats.food = 1;
2515	* value in the key/value list. If the archetype has	2786	force->speed_left = -1.f;
2516	* this key, then we should also have it, so shouldn't	2787
2517	* be here. If user wants to store empty strings,	2788	force->set_speed (1.f / 4.f);
2518	* should pass in ""	2789	force->flag [FLAG_IS_USED_UP] = true;
2519	*/	2790	force->flag [FLAG_APPLIED] = true;
2520	if (value == NULL) return TRUE;	2791
		2792	insert (force);
2521		2793	}
2522	field = new key_value;	2794	}
		2795
		2796	void object::change_move_type (MoveType mt)
		2797	{
		2798	if (move_type == mt)
		2799	return;
		2800
		2801	if (is_on_map ())
2523		2802	{
2524	field->key = canonical_key;	2803	// we are on the map, so handle move_on/off effects
2525	field->value = value;	2804	remove ();
2526	/* Usual prepend-addition. */	2805	move_type = mt;
2527	field->next = op->key_values;	2806	map->insert (this, x, y, this);
2528	op->key_values = field;
2529		2807	}
		2808	else
		2809	move_type = mt;
		2810	}
		2811
		2812	/* object should be a player.
		2813	* we return the object the player has marked with the 'mark' command
		2814	* below. If no match is found (or object has changed), we return
		2815	* NULL. We leave it up to the calling function to print messages if
		2816	* nothing is found.
		2817	*/
		2818	object *
		2819	object::mark () const
		2820	{
		2821	if (contr && contr->mark && contr->mark->env == this)
		2822	return contr->mark;
		2823	else
2530	return TRUE;	2824	return 0;
2531	}	2825	}
2532		2826
2533	/*	2827	// put marked object first in the inventory
2534	* Updates the key in op to value.	2828	// this is used by identify-like spells so players can influence
2535	*	2829	// the order a bit.
2536	* If add_key is FALSE, this will only update existing keys,	2830	void
2537	* and not add new ones.	2831	object::splay_marked ()
2538	* In general, should be little reason FALSE is ever passed in for add_key
2539	*
2540	* Returns TRUE on success.
2541	*/
2542	int set_ob_key_value(object * op, const char *key, const char * value, int add_key)
2543	{	2832	{
2544	shstr key_ (key);	2833	if (object *marked = mark ())
2545	return set_ob_key_value_s (op, key_, value, add_key);	2834	splay (marked);
2546	}	2835	}
		2836

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