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Comparing deliantra/server/common/object.C (file contents):
Revision 1.65 by root, Wed Dec 13 00:42:03 2006 UTC vs.
Revision 1.266 by root, Tue Dec 23 01:13:15 2008 UTC

1	/*	1	/*
2	CrossFire, A Multiplayer game for X-windows	2	* This file is part of Deliantra, the Roguelike Realtime MMORPG.
3		3	*
		4	* Copyright (©) 2005,2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
4	Copyright (C) 2001 Mark Wedel & Crossfire Development Team	5	* Copyright (©) 2001,2007 Mark Wedel & Crossfire Development Team
5	Copyright (C) 1992 Frank Tore Johansen	6	* Copyright (©) 1992,2007 Frank Tore Johansen
6		7	*
7	This program is free software; you can redistribute it and/or modify	8	* Deliantra is free software: you can redistribute it and/or modify
8	it under the terms of the GNU General Public License as published by	9	* it under the terms of the GNU General Public License as published by
9	the Free Software Foundation; either version 2 of the License, or	10	* the Free Software Foundation, either version 3 of the License, or
10	(at your option) any later version.	11	* (at your option) any later version.
11		12	*
12	This program is distributed in the hope that it will be useful,	13	* This program is distributed in the hope that it will be useful,
13	but WITHOUT ANY WARRANTY; without even the implied warranty of	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15	GNU General Public License for more details.	16	* GNU General Public License for more details.
16		17	*
17	You should have received a copy of the GNU General Public License	18	* You should have received a copy of the GNU General Public License
18	along with this program; if not, write to the Free Software	19	* along with this program. If not, see <http://www.gnu.org/licenses/>.
19	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.	20	*
20		21	* The authors can be reached via e-mail to <support@deliantra.net>
21	The authors can be reached via e-mail at <crossfire@schmorp.de>
22	*/	22	*/
23		23
24	/* Eneq(@csd.uu.se): Added weight-modifiers in environment of objects.
25	sub/add_weight will transcend the environment updating the carrying
26	variable. */
27	#include <global.h>	24	#include <global.h>
28	#include <stdio.h>	25	#include <stdio.h>
29	#include <sys/types.h>	26	#include <sys/types.h>
30	#include <sys/uio.h>	27	#include <sys/uio.h>
31	#include <object.h>	28	#include <object.h>
32	#include <funcpoint.h>	29	#include <sproto.h>
33	#include <loader.h>	30	#include <loader.h>
34		31
35	int nrofallocobjects = 0;	32	#include <bitset>
36	static UUID uuid;	33
		34	UUID UUID::cur;
		35	static uint64_t seq_next_save;
37	const uint64 UUID_SKIP = 1<<19;	36	static const uint64 UUID_GAP = 1<<19;
38		37
39	object *active_objects; /* List of active objects that need to be processed */	38	objectvec objects;
		39	activevec actives;
40		40
41	short freearr_x[SIZEOFFREE] = { 0, 0, 1, 1, 1, 0, -1, -1, -1, 0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2, -2, -2, -2, -1,	41	short freearr_x[SIZEOFFREE] = {
		42	0,
		43	0, 1, 1, 1, 0, -1, -1, -1,
		44	0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2, -2, -2, -2, -1,
42	0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3, -3, -3, -3, -3, -2, -1	45	0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3, -3, -3, -3, -3, -2, -1
43	};	46	};
44	short freearr_y[SIZEOFFREE] = { 0, -1, -1, 0, 1, 1, 1, 0, -1, -2, -2, -2, -1, 0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2,	47	short freearr_y[SIZEOFFREE] = {
		48	0,
		49	-1, -1, 0, 1, 1, 1, 0, -1,
		50	-2, -2, -2, -1, 0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2,
45	-3, -3, -3, -3, -2, -1, 0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3	51	-3, -3, -3, -3, -2, -1, 0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3
46	};	52	};
47	int maxfree[SIZEOFFREE] = { 0, 9, 10, 13, 14, 17, 18, 21, 22, 25, 26, 27, 30, 31, 32, 33, 36, 37, 39, 39, 42, 43, 44, 45,	53	int maxfree[SIZEOFFREE] = {
		54	0,
		55	9, 10, 13, 14, 17, 18, 21, 22,
		56	25, 26, 27, 30, 31, 32, 33, 36, 37, 39, 39, 42, 43, 44, 45, 48,
48	48, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49	57	49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49
49	};	58	};
50	int freedir[SIZEOFFREE] = {	59	int freedir[SIZEOFFREE] = {
51	0, 1, 2, 3, 4, 5, 6, 7, 8, 1, 2, 2, 2, 3, 4, 4, 4, 5, 6, 6, 6, 7, 8, 8, 8,	60	0,
		61	1, 2, 3, 4, 5, 6, 7, 8,
		62	1, 2, 2, 2, 3, 4, 4, 4, 5, 6, 6, 6, 7, 8, 8, 8,
52	1, 2, 2, 2, 2, 2, 3, 4, 4, 4, 4, 4, 5, 6, 6, 6, 6, 6, 7, 8, 8, 8, 8, 8	63	1, 2, 2, 2, 2, 2, 3, 4, 4, 4, 4, 4, 5, 6, 6, 6, 6, 6, 7, 8, 8, 8, 8, 8
53	};	64	};
54		65
55	static void	66	static void
56	write_uuid (void)	67	write_uuid (uval64 skip, bool sync)
57	{	68	{
58	char filename1[MAX_BUF], filename2[MAX_BUF];	69	CALL_BEGIN (2);
59		70	CALL_ARG_SV (newSVval64 (skip));
60	sprintf (filename1, "%s/uuid", settings.localdir);	71	CALL_ARG_SV (boolSV (sync));
61	sprintf (filename2, "%s/uuid~", settings.localdir);	72	CALL_CALL ("cf::write_uuid", G_DISCARD);
62		73	CALL_END;
63	FILE *fp;
64
65	if (!(fp = fopen (filename2, "w")))
66	{
67	LOG (llevError, "ERROR: cannot open %s for writing, unable to write UUID!\n", filename2);
68	return;
69	}
70
71	fprintf (fp, "<1,%llx>\n", (unsigned long long)uuid.seq + UUID_SKIP * 2);
72	fclose (fp);
73	rename (filename2, filename1);
74	}	74	}
75		75
76	static void	76	static void
77	read_uuid (void)	77	read_uuid (void)
78	{	78	{
79	char filename[MAX_BUF];	79	char filename[MAX_BUF];
80		80
81	sprintf (filename, "%s/uuid", settings.localdir);	81	sprintf (filename, "%s/uuid", settings.localdir);
		82
		83	seq_next_save = 0;
82		84
83	FILE *fp;	85	FILE *fp;
84		86
85	if (!(fp = fopen (filename, "r")))	87	if (!(fp = fopen (filename, "r")))
86	{	88	{
87	if (errno == ENOENT)	89	if (errno == ENOENT)
88	{	90	{
89	LOG (llevInfo, "RESET uid to 1\n");	91	LOG (llevInfo, "RESET uid to 1\n");
90	uuid.seq = 0;	92	UUID::cur.seq = 0;
91	write_uuid ();	93	write_uuid (UUID_GAP, true);
92	return;	94	return;
93	}	95	}
94		96
95	LOG (llevError, "FATAL: cannot open %s for reading!\n", filename);	97	LOG (llevError, "FATAL: cannot open %s for reading!\n", filename);
96	_exit (1);	98	_exit (1);
97	}	99	}
98		100
99	int version;	101	UUID::BUF buf;
100	unsigned long long uid;	102	buf[0] = 0;
101	if (2 != fscanf (fp, "<%d,%llx>\n", &version, &uid) || version != 1)	103	fgets (buf, sizeof (buf), fp);
		104
		105	if (!UUID::cur.parse (buf))
102	{	106	{
103	LOG (llevError, "FATAL: error reading uid from %s!\n", filename);	107	LOG (llevError, "FATAL: error reading uid from %s (%s)!\n", filename, buf);
104	_exit (1);	108	_exit (1);
105	}	109	}
106		110
107	uuid.seq = uid;	111	LOG (llevDebug, "read UUID: %s\n", UUID::cur.c_str ());
108	write_uuid ();	112
109	LOG (llevDebug, "read UID: %" PRId64 "\n", uid);	113	write_uuid (UUID_GAP, true);
110	fclose (fp);	114	fclose (fp);
111	}	115	}
112		116
113	UUID	117	UUID
114	gen_uuid ()	118	UUID::gen ()
115	{	119	{
116	UUID uid;	120	UUID uid;
117		121
118	uid.seq = ++uuid.seq;	122	uid.seq = ++cur.seq;
119		123
120	if (!(uuid.seq & (UUID_SKIP - 1)))	124	if (expect_false (cur.seq >= seq_next_save))
121	write_uuid ();	125	{
		126	seq_next_save = UUID::cur.seq + (UUID_GAP >> 1);
		127	write_uuid (UUID_GAP, false);
		128	}
		129
122		130
123	return uid;	131	return uid;
124	}	132	}
125		133
126	void	134	void
127	init_uuid ()	135	UUID::init ()
128	{	136	{
129	read_uuid ();	137	read_uuid ();
130	}	138	}
131		139
132	/* Returns TRUE if every key_values in wants has a partner with the same value in has. */	140	/* Returns TRUE if every key_values in wants has a partner with the same value in has. */
133	static int	141	static bool
134	compare_ob_value_lists_one (const object *wants, const object *has)	142	compare_ob_value_lists_one (const object *wants, const object *has)
135	{	143	{
136	key_value *wants_field;
137
138	/* n-squared behaviour (see get_ob_key_link()), but I'm hoping both	144	/* n-squared behaviour (see kv_get), but I'm hoping both
139	* objects with lists are rare, and lists stay short. If not, use a	145	* objects with lists are rare, and lists stay short. If not, use a
140	* different structure or at least keep the lists sorted...	146	* different structure or at least keep the lists sorted...
141	*/	147	*/
142		148
143	/* For each field in wants, */	149	/* For each field in wants, */
144	for (wants_field = wants->key_values; wants_field != NULL; wants_field = wants_field->next)	150	for (key_value *kv = wants->key_values; kv; kv = kv->next)
145	{	151	if (has->kv_get (kv->key) != kv->value)
146	key_value *has_field;	152	return false;
147
148	/* Look for a field in has with the same key. */
149	has_field = get_ob_key_link (has, wants_field->key);
150
151	if (has_field == NULL)
152	{
153	/* No field with that name. */
154	return FALSE;
155	}
156
157	/* Found the matching field. */
158	if (has_field->value != wants_field->value)
159	{
160	/* Values don't match, so this half of the comparison is false. */
161	return FALSE;
162	}
163
164	/* If we get here, we found a match. Now for the next field in wants. */
165	}
166		153
167	/* If we get here, every field in wants has a matching field in has. */	154	/* If we get here, every field in wants has a matching field in has. */
168	return TRUE;	155	return true;
169	}	156	}
170		157
171	/* Returns TRUE if ob1 has the same key_values as ob2. */	158	/* Returns TRUE if ob1 has the same key_values as ob2. */
172	static int	159	static bool
173	compare_ob_value_lists (const object *ob1, const object *ob2)	160	compare_ob_value_lists (const object *ob1, const object *ob2)
174	{	161	{
175	/* However, there may be fields in has which aren't partnered in wants,	162	/* However, there may be fields in has which aren't partnered in wants,
176	* so we need to run the comparison *twice*. :(	163	* so we need to run the comparison *twice*. :(
177	*/	164	*/
178	return compare_ob_value_lists_one (ob1, ob2) && compare_ob_value_lists_one (ob2, ob1);	165	return compare_ob_value_lists_one (ob1, ob2)
		166	&& compare_ob_value_lists_one (ob2, ob1);
179	}	167	}
180		168
181	/* Function examines the 2 objects given to it, and returns true if	169	/* Function examines the 2 objects given to it, and returns true if
182	* they can be merged together.	170	* they can be merged together.
183	*	171	*
184	* Note that this function appears a lot longer than the macro it	172	* Note that this function appears a lot longer than the macro it
185	* replaces - this is mostly for clarity - a decent compiler should hopefully	173	* replaces - this is mostly for clarity - a decent compiler should hopefully
186	* reduce this to the same efficiency.	174	* reduce this to the same efficiency.
187	*	175	*
188	* Check nrof variable *before* calling CAN_MERGE()	176	* Check nrof variable *before* calling can_merge()
189	*	177	*
190	* Improvements made with merge: Better checking on potion, and also	178	* Improvements made with merge: Better checking on potion, and also
191	* check weight	179	* check weight
192	*/	180	*/
193
194	bool object::can_merge (object *ob1, object *ob2)	181	bool object::can_merge_slow (object *ob1, object *ob2)
195	{	182	{
196	/* A couple quicksanity checks */	183	/* A couple quicksanity checks */
197	if ((ob1 == ob2) || (ob1->type != ob2->type))	184	if (ob1 == ob2
		185	|| ob1->type != ob2->type
		186	|| ob1->speed != ob2->speed
		187	|| ob1->value != ob2->value
		188	|| ob1->name != ob2->name)
198	return 0;	189	return 0;
199		190
200	if (ob1->speed != ob2->speed)	191	/* Do not merge objects if nrof would overflow, assume nrof
		192	* is always 0 .. 2**31-1 */
		193	if (ob1->nrof > 0x7fffffff - ob2->nrof)
201	return 0;	194	return 0;
202		195
203	/* Do not merge objects if nrof would overflow. We use 1UL<<31 since that
204	* value could not be stored in a sint32 (which unfortunately sometimes is
205	* used to store nrof).
206	*/
207	if (ob1->nrof + ob2->nrof >= 1UL << 31)
208	return 0;
209
210	/* If the objects have been identified, set the BEEN_APPLIED flag.	196	/* If the objects have been identified, set the BEEN_APPLIED flag.
211	* This is to the comparison of the flags below will be OK. We	197	* This is to the comparison of the flags below will be OK. We
212	* just can't ignore the been applied or identified flags, as they	198	* just can't ignore the been applied or identified flags, as they
213	* are not equal - just if it has been identified, the been_applied	199	* are not equal - just if it has been identified, the been_applied
214	* flags lose any meaning.	200	* flags lose any meaning.
215	*/	201	*/
216	if (QUERY_FLAG (ob1, FLAG_IDENTIFIED))	202	if (QUERY_FLAG (ob1, FLAG_IDENTIFIED))
217	SET_FLAG (ob1, FLAG_BEEN_APPLIED);	203	SET_FLAG (ob1, FLAG_BEEN_APPLIED);
218		204
219	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))	205	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))
220	SET_FLAG (ob2, FLAG_BEEN_APPLIED);	206	SET_FLAG (ob2, FLAG_BEEN_APPLIED);
221		207
222		208	if (ob1->arch->archname != ob2->arch->archname
223	/* the 0x400000 on flags2 is FLAG_INV_LOCK. I don't think something
224	* being locked in inventory should prevent merging.
225	* 0x4 in flags3 is CLIENT_SENT
226	*/
227	if ((ob1->arch != ob2->arch) ||
228	(ob1->flags[0] != ob2->flags[0]) ||
229	(ob1->flags[1] != ob2->flags[1]) ||
230	((ob1->flags[2] & ~0x400000) != (ob2->flags[2] & ~0x400000)) ||
231	((ob1->flags[3] & ~0x4) != (ob2->flags[3] & ~0x4)) ||
232	(ob1->name != ob2->name) ||	209	|| ob1->name != ob2->name
233	(ob1->title != ob2->title) ||	210	|| ob1->title != ob2->title
234	(ob1->msg != ob2->msg) ||	211	|| ob1->msg != ob2->msg
235	(ob1->weight != ob2->weight) ||	212	|| ob1->weight != ob2->weight
236	(memcmp (&ob1->resist, &ob2->resist, sizeof (ob1->resist)) != 0) ||
237	(memcmp (&ob1->stats, &ob2->stats, sizeof (ob1->stats)) != 0) ||
238	(ob1->attacktype != ob2->attacktype) ||	213	|| ob1->attacktype != ob2->attacktype
239	(ob1->magic != ob2->magic) ||	214	|| ob1->magic != ob2->magic
240	(ob1->slaying != ob2->slaying) ||	215	|| ob1->slaying != ob2->slaying
241	(ob1->skill != ob2->skill) ||	216	|| ob1->skill != ob2->skill
242	(ob1->value != ob2->value) ||	217	|| ob1->value != ob2->value
243	(ob1->animation_id != ob2->animation_id) ||	218	|| ob1->animation_id != ob2->animation_id
		219	|| (ob1->face != ob2->face && !ob1->animation_id) // face and animation are dependent on each other
244	(ob1->client_type != ob2->client_type) ||	220	|| ob1->client_type != ob2->client_type
245	(ob1->materialname != ob2->materialname) ||	221	|| ob1->materialname != ob2->materialname
246	(ob1->lore != ob2->lore) ||	222	|| ob1->lore != ob2->lore
247	(ob1->subtype != ob2->subtype) ||	223	|| ob1->subtype != ob2->subtype
248	(ob1->move_type != ob2->move_type) ||	224	|| ob1->move_type != ob2->move_type
249	(ob1->move_block != ob2->move_block) ||	225	|| ob1->move_block != ob2->move_block
250	(ob1->move_allow != ob2->move_allow) ||	226	|| ob1->move_allow != ob2->move_allow
251	(ob1->move_on != ob2->move_on) ||	227	|| ob1->move_on != ob2->move_on
252	(ob1->move_off != ob2->move_off) || (ob1->move_slow != ob2->move_slow) || (ob1->move_slow_penalty != ob2->move_slow_penalty))	228	|| ob1->move_off != ob2->move_off
		229	|| ob1->move_slow != ob2->move_slow
		230	|| ob1->move_slow_penalty != ob2->move_slow_penalty
		231	|| memcmp (&ob1->resist, &ob2->resist, sizeof (ob1->resist))
		232	|| memcmp (&ob1->stats , &ob2->stats , sizeof (ob1->stats)))
253	return 0;	233	return 0;
254		234
		235	if ((ob1->flag ^ ob2->flag)
		236	.reset (FLAG_INV_LOCKED)
		237	.reset (FLAG_REMOVED)
		238	.any ())
		239	return 0;
		240
255	/* This is really a spellbook check - really, we should	241	/* This is really a spellbook check - we should in general
256	* check all objects in the inventory.	242	* not merge objects with real inventories, as splitting them
		243	* is hard.
257	*/	244	*/
258	if (ob1->inv || ob2->inv)	245	if (ob1->inv || ob2->inv)
259	{	246	{
260	/* if one object has inventory but the other doesn't, not equiv */
261	if ((ob1->inv && !ob2->inv) || (ob2->inv && !ob1->inv))
262	return 0;
263
264	/* Now check to see if the two inventory objects could merge */
265	if (!CAN_MERGE (ob1->inv, ob2->inv))	247	if (!(ob1->inv && ob2->inv))
266	return 0;	248	return 0; /* inventories differ in length */
		249
		250	if (ob1->inv->below || ob2->inv->below)
		251	return 0; /* more than one object in inv */
		252
		253	if (!object::can_merge (ob1->inv, ob2->inv))
		254	return 0; /* inventory objects differ */
267		255
268	/* inventory ok - still need to check rest of this object to see	256	/* inventory ok - still need to check rest of this object to see
269	* if it is valid.	257	* if it is valid.
270	*/	258	*/
271	}	259	}
…		…
279		267
280	/* Note sure why the following is the case - either the object has to	268	/* Note sure why the following is the case - either the object has to
281	* be animated or have a very low speed. Is this an attempted monster	269	* be animated or have a very low speed. Is this an attempted monster
282	* check?	270	* check?
283	*/	271	*/
284	if (!QUERY_FLAG (ob1, FLAG_ANIMATE) && FABS ((ob1)->speed) > MIN_ACTIVE_SPEED)	272	if (!QUERY_FLAG (ob1, FLAG_ANIMATE) && ob1->has_active_speed ())
285	return 0;	273	return 0;
286		274
287	switch (ob1->type)	275	switch (ob1->type)
288	{	276	{
289	case SCROLL:	277	case SCROLL:
290	if (ob1->level != ob2->level)	278	if (ob1->level != ob2->level)
291	return 0;	279	return 0;
292	break;	280	break;
293	}	281	}
294		282
295	if (ob1->key_values != NULL || ob2->key_values != NULL)	283	if (ob1->key_values || ob2->key_values)
296	{	284	{
297	/* At least one of these has key_values. */	285	/* At least one of these has key_values. */
298	if ((ob1->key_values == NULL) != (ob2->key_values == NULL))	286	if ((!ob1->key_values) != (!ob2->key_values))
299	/* One has fields, but the other one doesn't. */	287	return 0; /* One has fields, but the other one doesn't. */
		288
		289	if (!compare_ob_value_lists (ob1, ob2))
300	return 0;	290	return 0;
301	else if (!compare_ob_value_lists (ob1, ob2))
302	return 0;
303	}	291	}
304		292
305	//TODO: generate an event or call into perl for additional checks
306	if (ob1->self || ob2->self)	293	if (ob1->self || ob2->self)
307	{	294	{
308	ob1->optimise ();	295	ob1->optimise ();
309	ob2->optimise ();	296	ob2->optimise ();
310		297
311	if (ob1->self || ob2->self)	298	if (ob1->self || ob2->self)
		299	{
		300	int k1 = ob1->self ? HvTOTALKEYS (ob1->self) : 0;
		301	int k2 = ob2->self ? HvTOTALKEYS (ob2->self) : 0;
		302
		303	if (k1 != k2)
312	return 0;	304	return 0;
		305
		306	if (k1 == 0)
		307	return 1;
		308
		309	if (!cfperl_can_merge (ob1, ob2))
		310	return 0;
		311	}
313	}	312	}
314		313
315	/* Everything passes, must be OK. */	314	/* Everything passes, must be OK. */
316	return 1;	315	return 1;
317	}	316	}
318		317
		318	// find player who can see this object
		319	object *
		320	object::visible_to () const
		321	{
		322	if (client_visible () && !flag [FLAG_REMOVED])
		323	{
		324	// see if we are in a container of sorts
		325	if (env)
		326	{
		327	// the player inventory itself is always visible
		328	if (env->type == PLAYER)
		329	return env;
		330
		331	// else a player could have our env open
		332	object *envest = env->outer_env ();
		333
		334	// the player itself is always on a map, so we will find him here
		335	// even if our inv is in a player.
		336	if (envest->is_on_map ())
		337	if (object *pl = envest->ms ().player ())
		338	if (pl->container == env)
		339	return pl;
		340	}
		341	else
		342	{
		343	// maybe there is a player standing on the same mapspace
		344	// this will catch the case where "this" is a player
		345	if (object *pl = ms ().player ())
		346	if ((!pl->container && pl->contr->ns && !pl->contr->ns->update_look)
		347	|| this == pl->container)
		348	return pl;
		349	}
		350	}
		351
		352	return 0;
		353	}
		354
		355	// adjust weight per container type ("of holding")
		356	static sint32
		357	weight_adjust_for (object *op, sint32 weight)
		358	{
		359	return op->type == CONTAINER
		360	? lerp (weight, 0, 100, 0, 100 - op->stats.Str)
		361	: weight;
		362	}
		363
319	/*	364	/*
		365	* adjust_weight(object, weight) adds the specified weight to an object,
		366	* and also updates how much the environment(s) is/are carrying.
		367	*/
		368	static void
		369	adjust_weight (object *op, sint32 weight)
		370	{
		371	while (op)
		372	{
		373	// adjust by actual difference to account for rounding errors
		374	// i.e. (w2 - w1) / f != w2 / f - w1 / f and the latter is correct
		375	weight = weight_adjust_for (op, op->carrying)
		376	- weight_adjust_for (op, op->carrying - weight);
		377
		378	if (!weight)
		379	return;
		380
		381	op->carrying += weight;
		382
		383	if (object *pl = op->visible_to ())
		384	if (pl != op) // player is handled lazily
		385	esrv_update_item (UPD_WEIGHT, pl, op);
		386
		387	op = op->env;
		388	}
		389	}
		390
		391	/*
320	* sum_weight() is a recursive function which calculates the weight	392	* this is a recursive function which calculates the weight
321	* an object is carrying. It goes through in figures out how much	393	* an object is carrying. It goes through op and figures out how much
322	* containers are carrying, and sums it up.	394	* containers are carrying, and sums it up.
323	*/	395	*/
324	long	396	void
325	sum_weight (object *op)	397	object::update_weight ()
326	{	398	{
327	long sum;	399	sint32 sum = 0;
328	object *inv;
329		400
330	for (sum = 0, inv = op->inv; inv != NULL; inv = inv->below)	401	for (object *op = inv; op; op = op->below)
331	{	402	{
332	if (inv->inv)	403	if (op->inv)
333	sum_weight (inv);	404	op->update_weight ();
334	sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1);	405
		406	sum += op->total_weight ();
		407	}
		408
		409	sum = weight_adjust_for (this, sum);
		410
		411	if (sum != carrying)
335	}	412	{
336
337	if (op->type == CONTAINER && op->stats.Str)
338	sum = (sum * (100 - op->stats.Str)) / 100;
339
340	if (op->carrying != sum)
341	op->carrying = sum;	413	carrying = sum;
342		414
343	return sum;	415	if (object *pl = visible_to ())
		416	if (pl != this) // player is handled lazily
		417	esrv_update_item (UPD_WEIGHT, pl, this);
		418	}
344	}	419	}
345		420
346	/**	421	/*
347	* Return the outermost environment object for a given object.	422	* Used by: Server DM commands: dumpbelow, dump. Some error messages.
348	*/	423	*/
349
350	object *
351	object_get_env_recursive (object *op)
352	{
353	while (op->env != NULL)
354	op = op->env;
355	return op;
356	}
357
358	/*
359	* Eneq(@csd.uu.se): Since we can have items buried in a character we need
360	* a better check. We basically keeping traversing up until we can't
361	* or find a player.
362	*/
363
364	object *
365	is_player_inv (object *op)
366	{
367	for (; op != NULL && op->type != PLAYER; op = op->env)
368	if (op->env == op)
369	op->env = NULL;
370	return op;
371	}
372
373	/*
374	* Used by: Crossedit: dump. Server DM commands: dumpbelow, dump.
375	* Some error messages.
376	* The result of the dump is stored in the static global errmsg array.
377	*/
378
379	char *	424	char *
380	dump_object (object *op)	425	dump_object (object *op)
381	{	426	{
382	if (!op)	427	if (!op)
383	return strdup ("[NULLOBJ]");	428	return strdup ("[NULLOBJ]");
384		429
385	object_freezer freezer;	430	object_freezer freezer;
386	save_object (freezer, op, 3);	431	op->write (freezer);
387	return freezer.as_string ();	432	return freezer.as_string ();
388	}	433	}
389		434
390	/*	435	/*
391	* get_nearest_part(multi-object, object 2) returns the part of the	436	* get_nearest_part(multi-object, object 2) returns the part of the
392	* multi-object 1 which is closest to the second object.	437	* multi-object 1 which is closest to the second object.
393	* If it's not a multi-object, it is returned.	438	* If it's not a multi-object, it is returned.
394	*/	439	*/
395
396	object *	440	object *
397	get_nearest_part (object *op, const object *pl)	441	get_nearest_part (object *op, const object *pl)
398	{	442	{
399	object *tmp, *closest;	443	object *tmp, *closest;
400	int last_dist, i;	444	int last_dist, i;
401		445
402	if (op->more == NULL)	446	if (!op->more)
403	return op;	447	return op;
		448
404	for (last_dist = distance (op, pl), closest = op, tmp = op->more; tmp != NULL; tmp = tmp->more)	449	for (last_dist = distance (op, pl), closest = op, tmp = op->more;
		450	tmp;
		451	tmp = tmp->more)
405	if ((i = distance (tmp, pl)) < last_dist)	452	if ((i = distance (tmp, pl)) < last_dist)
406	closest = tmp, last_dist = i;	453	closest = tmp, last_dist = i;
		454
407	return closest;	455	return closest;
408	}	456	}
409		457
410	/*	458	/*
411	* Returns the object which has the count-variable equal to the argument.	459	* Returns the object which has the count-variable equal to the argument.
		460	* VERRRY slow.
412	*/	461	*/
413
414	object *	462	object *
415	find_object (tag_t i)	463	find_object (tag_t i)
416	{	464	{
417	for (object *op = object::first; op; op = op->next)	465	for_all_objects (op)
418	if (op->count == i)	466	if (op->count == i)
419	return op;	467	return op;
420		468
421	return 0;	469	return 0;
422	}	470	}
423		471
424	/*	472	/*
425	* Returns the first object which has a name equal to the argument.	473	* Returns the first object which has a name equal to the argument.
426	* Used only by the patch command, but not all that useful.	474	* Used only by the patch command, but not all that useful.
427	* Enables features like "patch <name-of-other-player> food 999"	475	* Enables features like "patch <name-of-other-player> food 999"
428	*/	476	*/
429
430	object *	477	object *
431	find_object_name (const char *str)	478	find_object_name (const char *str)
432	{	479	{
433	shstr_cmp str_ (str);	480	shstr_cmp str_ (str);
434	object *op;
435		481
436	for (op = object::first; op != NULL; op = op->next)	482	if (str_)
		483	for_all_objects (op)
437	if (op->name == str_)	484	if (op->name == str_)
438	break;	485	return op;
439		486
440	return op;	487	return 0;
441	}
442
443	void
444	free_all_object_data ()
445	{
446	LOG (llevDebug, "%d allocated objects\n", nrofallocobjects);
447	}	488	}
448		489
449	/*	490	/*
450	* Sets the owner and sets the skill and exp pointers to owner's current	491	* Sets the owner and sets the skill and exp pointers to owner's current
451	* skill and experience objects.	492	* skill and experience objects.
		493	* ACTUALLY NO! investigate! TODO
452	*/	494	*/
453	void	495	void
454	object::set_owner (object *owner)	496	object::set_owner (object *owner)
455	{	497	{
		498	// allow objects which own objects
456	if (!owner)	499	if (owner)
457	return;
458
459	/* next line added to allow objects which own objects */
460	/* Add a check for ownercounts in here, as I got into an endless loop
461	* with the fireball owning a poison cloud which then owned the
462	* fireball. I believe that was caused by one of the objects getting
463	* freed and then another object replacing it. Since the ownercounts
464	* didn't match, this check is valid and I believe that cause is valid.
465	*/
466	while (owner->owner)	500	while (owner->owner)
467	owner = owner->owner;	501	owner = owner->owner;
		502
		503	if (flag [FLAG_FREED])
		504	{
		505	LOG (llevError | logBacktrace, "tried to set owner of %s to %s\n", debug_desc (), owner->debug_desc ());
		506	return;
		507	}
468		508
469	this->owner = owner;	509	this->owner = owner;
		510	}
		511
		512	int
		513	object::slottype () const
		514	{
		515	if (type == SKILL)
		516	{
		517	if (IS_COMBAT_SKILL (subtype)) return slot_combat;
		518	if (IS_RANGED_SKILL (subtype)) return slot_ranged;
		519	}
		520	else
		521	{
		522	if (slot [body_combat].info) return slot_combat;
		523	if (slot [body_range ].info) return slot_ranged;
		524	}
		525
		526	return slot_none;
		527	}
		528
		529	bool
		530	object::change_weapon (object *ob)
		531	{
		532	if (current_weapon == ob)
		533	return true;
		534
		535	if (chosen_skill)
		536	chosen_skill->flag [FLAG_APPLIED] = false;
		537
		538	current_weapon = ob;
		539	chosen_skill = !ob || ob->type == SKILL ? ob : find_skill_by_name (this, ob->skill);
		540
		541	if (chosen_skill)
		542	chosen_skill->flag [FLAG_APPLIED] = true;
		543
		544	update_stats ();
		545
		546	if (ob)
		547	{
		548	// now check wether any body locations became invalid, in which case
		549	// we cannot apply the weapon at the moment.
		550	for (int i = 0; i < NUM_BODY_LOCATIONS; ++i)
		551	if (slot[i].used < 0)
		552	{
		553	current_weapon = chosen_skill = 0;
		554	update_stats ();
		555
		556	new_draw_info_format (NDI_UNIQUE, 0, this,
		557	"You try to balance all your items at once, "
		558	"but the %s is just too much for your body. "
		559	"[You need to unapply some items first.]", &ob->name);
		560	return false;
		561	}
		562
		563	//new_draw_info_format (NDI_UNIQUE, 0, this, "You switch to your %s.", &ob->name);
		564	}
		565	else
		566	;//new_draw_info_format (NDI_UNIQUE, 0, this, "You unwield your weapons.");
		567
		568	if (ob && !ob->flag [FLAG_APPLIED] && ob->type != SPELL)
		569	{
		570	LOG (llevError | logBacktrace, "%s changed to unapplied weapon %s",
		571	&name, ob->debug_desc ());
		572	return false;
		573	}
		574
		575	return true;
470	}	576	}
471		577
472	/* Zero the key_values on op, decrementing the shared-string	578	/* Zero the key_values on op, decrementing the shared-string
473	* refcounts and freeing the links.	579	* refcounts and freeing the links.
474	*/	580	*/
475	static void	581	static void
476	free_key_values (object *op)	582	free_key_values (object *op)
477	{	583	{
478	for (key_value *i = op->key_values; i != 0;)	584	for (key_value *i = op->key_values; i; )
479	{	585	{
480	key_value *next = i->next;	586	key_value *next = i->next;
481	delete i;	587	delete i;
482		588
483	i = next;	589	i = next;
484	}	590	}
485		591
486	op->key_values = 0;	592	op->key_values = 0;
487	}
488
489	void object::clear ()
490	{
491	attachable_base::clear ();
492
493	free_key_values (this);
494
495	owner = 0;
496	name = 0;
497	name_pl = 0;
498	title = 0;
499	race = 0;
500	slaying = 0;
501	skill = 0;
502	msg = 0;
503	lore = 0;
504	custom_name = 0;
505	materialname = 0;
506	contr = 0;
507	below = 0;
508	above = 0;
509	inv = 0;
510	container = 0;
511	env = 0;
512	more = 0;
513	head = 0;
514	map = 0;
515	active_next = 0;
516	active_prev = 0;
517
518	memset (static_cast<object_pod *>(this), 0, sizeof (object_pod));
519
520	SET_FLAG (this, FLAG_REMOVED);
521
522	/* What is not cleared is next, prev, and count */
523
524	expmul = 1.0;
525	face = blank_face;
526
527	if (settings.casting_time)
528	casting_time = -1;
529	}	593	}
530		594
531	/*	595	/*
532	* copy_to first frees everything allocated by the dst object,	596	* copy_to first frees everything allocated by the dst object,
533	* and then copies the contents of itself into the second	597	* and then copies the contents of itself into the second
…		…
537	* will point at garbage.	601	* will point at garbage.
538	*/	602	*/
539	void	603	void
540	object::copy_to (object *dst)	604	object::copy_to (object *dst)
541	{	605	{
542	bool is_freed = QUERY_FLAG (dst, FLAG_FREED);	606	dst->remove ();
543	bool is_removed = QUERY_FLAG (dst, FLAG_REMOVED);
544
545	*(object_copy *)dst = *this;	607	*(object_copy *)dst = *this;
546	*(object_pod *)dst = *this;	608	dst->flag [FLAG_REMOVED] = true;
547
548	if (self || cb)
549	INVOKE_OBJECT (CLONE, this, ARG_OBJECT (dst));
550
551	if (is_freed)
552	SET_FLAG (dst, FLAG_FREED);
553
554	if (is_removed)
555	SET_FLAG (dst, FLAG_REMOVED);
556
557	if (speed < 0)
558	dst->speed_left = speed_left - RANDOM () % 200 / 100.0;
559		609
560	/* Copy over key_values, if any. */	610	/* Copy over key_values, if any. */
561	if (key_values)	611	if (key_values)
562	{	612	{
563	key_value *tail = 0;	613	key_value *tail = 0;
564	key_value *i;
565
566	dst->key_values = 0;	614	dst->key_values = 0;
567		615
568	for (i = key_values; i; i = i->next)	616	for (key_value *i = key_values; i; i = i->next)
569	{	617	{
570	key_value *new_link = new key_value;	618	key_value *new_link = new key_value;
571		619
572	new_link->next = 0;	620	new_link->next = 0;
573	new_link->key = i->key;	621	new_link->key = i->key;
574	new_link->value = i->value;	622	new_link->value = i->value;
575		623
576	/* Try and be clever here, too. */	624	/* Try and be clever here, too. */
577	if (!dst->key_values)	625	if (!dst->key_values)
578	{	626	{
…		…
585	tail = new_link;	633	tail = new_link;
586	}	634	}
587	}	635	}
588	}	636	}
589		637
590	update_ob_speed (dst);	638	if (speed < 0)
		639	dst->speed_left -= rndm ();
		640
		641	dst->activate ();
		642	}
		643
		644	void
		645	object::instantiate ()
		646	{
		647	if (!uuid.seq) // HACK
		648	uuid = UUID::gen ();
		649
		650	speed_left = -0.1f;
		651	/* copy the body_info to the body_used - this is only really
		652	* need for monsters, but doesn't hurt to do it for everything.
		653	* by doing so, when a monster is created, it has good starting
		654	* values for the body_used info, so when items are created
		655	* for it, they can be properly equipped.
		656	*/
		657	for (int i = NUM_BODY_LOCATIONS; i--; )
		658	slot[i].used = slot[i].info;
		659
		660	attachable::instantiate ();
591	}	661	}
592		662
593	object *	663	object *
594	object::clone ()	664	object::clone ()
595	{	665	{
596	object *neu = create ();	666	object *neu = create ();
597	copy_to (neu);	667	copy_to (neu);
		668	neu->map = map; // not copied by copy_to
598	return neu;	669	return neu;
599	}	670	}
600		671
601	/*	672	/*
602	* If an object with the IS_TURNABLE() flag needs to be turned due	673	* If an object with the IS_TURNABLE() flag needs to be turned due
603	* to the closest player being on the other side, this function can	674	* to the closest player being on the other side, this function can
604	* be called to update the face variable, _and_ how it looks on the map.	675	* be called to update the face variable, _and_ how it looks on the map.
605	*/	676	*/
606
607	void	677	void
608	update_turn_face (object *op)	678	update_turn_face (object *op)
609	{	679	{
610	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || op->arch == NULL)	680	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || !op->arch)
611	return;	681	return;
		682
612	SET_ANIMATION (op, op->direction);	683	SET_ANIMATION (op, op->direction);
613	update_object (op, UP_OBJ_FACE);	684	update_object (op, UP_OBJ_FACE);
614	}	685	}
615		686
616	/*	687	/*
617	* Updates the speed of an object. If the speed changes from 0 to another	688	* Updates the speed of an object. If the speed changes from 0 to another
618	* value, or vice versa, then add/remove the object from the active list.	689	* value, or vice versa, then add/remove the object from the active list.
619	* This function needs to be called whenever the speed of an object changes.	690	* This function needs to be called whenever the speed of an object changes.
620	*/	691	*/
621	void	692	void
622	update_ob_speed (object *op)	693	object::set_speed (float speed)
623	{	694	{
624	extern int arch_init;	695	if (flag [FLAG_FREED] && speed)
625
626	/* No reason putting the archetypes objects on the speed list,
627	* since they never really need to be updated.
628	*/
629
630	if (QUERY_FLAG (op, FLAG_FREED) && op->speed)
631	{	696	{
632	LOG (llevError, "Object %s is freed but has speed.\n", &op->name);	697	LOG (llevError, "Object %s is freed but has speed.\n", &name);
633	#ifdef MANY_CORES
634	abort ();
635	#else
636	op->speed = 0;	698	speed = 0;
637	#endif
638	}
639
640	if (arch_init)
641	return;
642
643	if (FABS (op->speed) > MIN_ACTIVE_SPEED)
644	{	699	}
645	/* If already on active list, don't do anything */
646	if (op->active_next || op->active_prev || op == active_objects)
647	return;
648		700
649	/* process_events() expects us to insert the object at the beginning	701	this->speed = speed;
650	* of the list. */
651	op->active_next = active_objects;
652		702
653	if (op->active_next != NULL)	703	if (has_active_speed ())
654	op->active_next->active_prev = op;	704	activate ();
655
656	active_objects = op;
657	}
658	else	705	else
659	{	706	deactivate ();
660	/* If not on the active list, nothing needs to be done */
661	if (!op->active_next && !op->active_prev && op != active_objects)
662	return;
663
664	if (op->active_prev == NULL)
665	{
666	active_objects = op->active_next;
667
668	if (op->active_next != NULL)
669	op->active_next->active_prev = NULL;
670	}
671	else
672	{
673	op->active_prev->active_next = op->active_next;
674
675	if (op->active_next)
676	op->active_next->active_prev = op->active_prev;
677	}
678
679	op->active_next = NULL;
680	op->active_prev = NULL;
681	}
682	}	707	}
683		708
684	/* This function removes object 'op' from the list of active
685	* objects.
686	* This should only be used for style maps or other such
687	* reference maps where you don't want an object that isn't
688	* in play chewing up cpu time getting processed.
689	* The reverse of this is to call update_ob_speed, which
690	* will do the right thing based on the speed of the object.
691	*/
692	void
693	remove_from_active_list (object *op)
694	{
695	/* If not on the active list, nothing needs to be done */
696	if (!op->active_next && !op->active_prev && op != active_objects)
697	return;
698
699	if (op->active_prev == NULL)
700	{
701	active_objects = op->active_next;
702	if (op->active_next != NULL)
703	op->active_next->active_prev = NULL;
704	}
705	else
706	{
707	op->active_prev->active_next = op->active_next;
708	if (op->active_next)
709	op->active_next->active_prev = op->active_prev;
710	}
711	op->active_next = NULL;
712	op->active_prev = NULL;
713	}
714
715	/*	709	/*
716	* update_object() updates the array which represents the map.	710	* update_object() updates the the map.
717	* It takes into account invisible objects (and represent squares covered	711	* It takes into account invisible objects (and represent squares covered
718	* by invisible objects by whatever is below them (unless it's another	712	* by invisible objects by whatever is below them (unless it's another
719	* invisible object, etc...)	713	* invisible object, etc...)
720	* If the object being updated is beneath a player, the look-window	714	* If the object being updated is beneath a player, the look-window
721	* of that player is updated (this might be a suboptimal way of	715	* of that player is updated (this might be a suboptimal way of
722	* updating that window, though, since update_object() is called _often_)	716	* updating that window, though, since update_object() is called _often_)
723	*	717	*
724	* action is a hint of what the caller believes need to be done.	718	* action is a hint of what the caller believes need to be done.
725	* For example, if the only thing that has changed is the face (due to
726	* an animation), we don't need to call update_position until that actually
727	* comes into view of a player. OTOH, many other things, like addition/removal
728	* of walls or living creatures may need us to update the flags now.
729	* current action are:	719	* current action are:
730	* UP_OBJ_INSERT: op was inserted	720	* UP_OBJ_INSERT: op was inserted
731	* UP_OBJ_REMOVE: op was removed	721	* UP_OBJ_REMOVE: op was removed
732	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update	722	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update
733	* as that is easier than trying to look at what may have changed.	723	* as that is easier than trying to look at what may have changed.
734	* UP_OBJ_FACE: only the objects face has changed.	724	* UP_OBJ_FACE: only the objects face has changed.
735	*/	725	*/
736
737	void	726	void
738	update_object (object *op, int action)	727	update_object (object *op, int action)
739	{	728	{
740	int update_now = 0, flags;	729	if (!op)
741	MoveType move_on, move_off, move_block, move_slow;
742
743	if (op == NULL)
744	{	730	{
745	/* this should never happen */	731	/* this should never happen */
746	LOG (llevDebug, "update_object() called for NULL object.\n");	732	LOG (llevError | logBacktrace, "update_object() called for NULL object.\n");
747	return;	733	return;
748	}	734	}
749		735
750	if (op->env != NULL)	736	if (!op->is_on_map ())
751	{	737	{
752	/* Animation is currently handled by client, so nothing	738	/* Animation is currently handled by client, so nothing
753	* to do in this case.	739	* to do in this case.
754	*/	740	*/
755	return;	741	return;
756	}	742	}
757		743
758	/* If the map is saving, don't do anything as everything is
759	* going to get freed anyways.
760	*/
761	if (!op->map || op->map->in_memory == MAP_SAVING)
762	return;
763
764	/* make sure the object is within map boundaries */	744	/* make sure the object is within map boundaries */
765	if (op->x < 0 || op->x >= MAP_WIDTH (op->map) || op->y < 0 || op->y >= MAP_HEIGHT (op->map))	745	if (op->x < 0 || op->x >= op->map->width || op->y < 0 || op->y >= op->map->height)
766	{	746	{
767	LOG (llevError, "update_object() called for object out of map!\n");	747	LOG (llevError, "update_object() called for object out of map!\n");
768	#ifdef MANY_CORES	748	#ifdef MANY_CORES
769	abort ();	749	abort ();
770	#endif	750	#endif
771	return;	751	return;
772	}	752	}
773		753
774	flags = GET_MAP_FLAGS (op->map, op->x, op->y);	754	mapspace &m = op->ms ();
775	SET_MAP_FLAGS (op->map, op->x, op->y, flags | P_NEED_UPDATE);
776	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);
777	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);
778	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);
779	move_off = GET_MAP_MOVE_OFF (op->map, op->x, op->y);
780		755
		756	if (!(m.flags_ & P_UPTODATE))
		757	/* nop */;
781	if (action == UP_OBJ_INSERT)	758	else if (action == UP_OBJ_INSERT)
782	{	759	{
		760	// this is likely overkill, TODO: revisit (schmorp)
783	if (QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(flags & P_BLOCKSVIEW))	761	if ((QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(m.flags_ & P_BLOCKSVIEW))
784	update_now = 1;
785
786	if (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(flags & P_NO_MAGIC))	762	|| (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(m.flags_ & P_NO_MAGIC))
787	update_now = 1;	763	|| (op->type == PLAYER && !(m.flags_ & P_PLAYER))
788		764	|| (op->type == SAFE_GROUND && !(m.flags_ & P_SAFE))
		765	|| (QUERY_FLAG (op, FLAG_ALIVE) && !(m.flags_ & P_IS_ALIVE))
789	if (QUERY_FLAG (op, FLAG_DAMNED) && !(flags & P_NO_CLERIC))	766	|| (QUERY_FLAG (op, FLAG_DAMNED) && !(m.flags_ & P_NO_CLERIC))
790	update_now = 1;
791
792	if (QUERY_FLAG (op, FLAG_ALIVE) && !(flags & P_IS_ALIVE))
793	update_now = 1;
794
795	if (op->type == SAFE_GROUND && !(flags & P_SAFE))
796	update_now = 1;
797
798	if ((move_on | op->move_on) != move_on)	767	|| (m.move_on | op->move_on ) != m.move_on
799	update_now = 1;
800
801	if ((move_off | op->move_off) != move_off)	768	|| (m.move_off | op->move_off ) != m.move_off
802	update_now = 1;	769	|| (m.move_slow | op->move_slow) != m.move_slow
803
804	/* This isn't perfect, but I don't expect a lot of objects to	770	/* This isn't perfect, but I don't expect a lot of objects to
805	* to have move_allow right now.	771	* have move_allow right now.
806	*/	772	*/
807	if (((move_block | op->move_block) & ~op->move_allow) != move_block)	773	|| ((m.move_block | op->move_block) & ~op->move_allow) != m.move_block
808	update_now = 1;	774	|| 1) // the above is not strong enough a test to skip updating. los maybe? TODO (Schmorp)
809		775	m.invalidate ();
810	if ((move_slow | op->move_slow) != move_slow)
811	update_now = 1;
812	}	776	}
813
814	/* if the object is being removed, we can't make intelligent	777	/* if the object is being removed, we can't make intelligent
815	* decisions, because remove_ob can't really pass the object	778	* decisions, because remove_ob can't really pass the object
816	* that is being removed.	779	* that is being removed.
817	*/	780	*/
818	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)	781	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)
819	update_now = 1;	782	m.invalidate ();
820	else if (action == UP_OBJ_FACE)	783	else if (action == UP_OBJ_FACE)
821	/* Nothing to do for that case */ ;	784	/* Nothing to do for that case */ ;
822	else	785	else
823	LOG (llevError, "update_object called with invalid action: %d\n", action);	786	LOG (llevError, "update_object called with invalid action: %d\n", action);
824		787
825	if (update_now)
826	{
827	SET_MAP_FLAGS (op->map, op->x, op->y, flags | P_NO_ERROR | P_NEED_UPDATE);
828	update_position (op->map, op->x, op->y);
829	}
830
831	if (op->more != NULL)	788	if (op->more)
832	update_object (op->more, action);	789	update_object (op->more, action);
833	}
834
835	object::vector object::mortals;
836	object::vector object::objects; // not yet used
837	object *object::first;
838
839	void object::free_mortals ()
840	{
841	for (AUTODECL (i, mortals.begin ()); i != mortals.end ();)
842	if ((*i)->refcnt)
843	++i; // further delay freeing
844	else
845	{
846	delete *i;
847	mortals.erase (i);
848	}
849	}	790	}
850		791
851	object::object ()	792	object::object ()
852	{	793	{
853	SET_FLAG (this, FLAG_REMOVED);	794	SET_FLAG (this, FLAG_REMOVED);
…		…
856	face = blank_face;	797	face = blank_face;
857	}	798	}
858		799
859	object::~object ()	800	object::~object ()
860	{	801	{
		802	unlink ();
		803
861	free_key_values (this);	804	free_key_values (this);
862	}	805	}
863		806
		807	static int object_count;
		808
864	void object::link ()	809	void object::link ()
865	{	810	{
		811	assert (!index);//D
		812	uuid = UUID::gen ();
866	count = ++ob_count;	813	count = ++object_count;
867	uuid = gen_uuid ();
868		814
869	prev = 0;	815	refcnt_inc ();
870	next = object::first;	816	objects.insert (this);
871
872	if (object::first)
873	object::first->prev = this;
874
875	object::first = this;
876	}	817	}
877		818
878	void object::unlink ()	819	void object::unlink ()
879	{	820	{
880	if (this == object::first)	821	if (!index)
881	object::first = next;	822	return;
882		823
883	/* Remove this object from the list of used objects */	824	objects.erase (this);
884	if (prev) prev->next = next;	825	refcnt_dec ();
885	if (next) next->prev = prev;	826	}
886		827
887	prev = 0;	828	void
888	next = 0;	829	object::activate ()
		830	{
		831	/* If already on active list, don't do anything */
		832	if (active)
		833	return;
		834
		835	if (has_active_speed () && flag [FLAG_FREED]) LOG (llevError | logBacktrace, "BUG: tried to activate freed object %s\n", debug_desc ());//D
		836	if (has_active_speed () && flag [FLAG_DEBUG]) LOG (llevError | logBacktrace, "BUG: tried to activate DEBUG object %s\n", debug_desc ());//D temp
		837
		838	if (has_active_speed ())
		839	actives.insert (this);
		840	}
		841
		842	void
		843	object::activate_recursive ()
		844	{
		845	activate ();
		846
		847	for (object *op = inv; op; op = op->below)
		848	op->activate_recursive ();
		849	}
		850
		851	/* This function removes object 'op' from the list of active
		852	* objects.
		853	* This should only be used for style maps or other such
		854	* reference maps where you don't want an object that isn't
		855	* in play chewing up cpu time getting processed.
		856	* The reverse of this is to call update_ob_speed, which
		857	* will do the right thing based on the speed of the object.
		858	*/
		859	void
		860	object::deactivate ()
		861	{
		862	/* If not on the active list, nothing needs to be done */
		863	if (!active)
		864	return;
		865
		866	actives.erase (this);
		867	}
		868
		869	void
		870	object::deactivate_recursive ()
		871	{
		872	for (object *op = inv; op; op = op->below)
		873	op->deactivate_recursive ();
		874
		875	deactivate ();
		876	}
		877
		878	void
		879	object::set_flag_inv (int flag, int value)
		880	{
		881	for (object *op = inv; op; op = op->below)
		882	{
		883	op->flag [flag] = value;
		884	op->set_flag_inv (flag, value);
		885	}
		886	}
		887
		888	/*
		889	* Remove and free all objects in the inventory of the given object.
		890	* object.c ?
		891	*/
		892	void
		893	object::destroy_inv (bool drop_to_ground)
		894	{
		895	// need to check first, because the checks below might segfault
		896	// as we might be on an invalid mapspace and crossfire code
		897	// is too buggy to ensure that the inventory is empty.
		898	// corollary: if you create arrows etc. with stuff in its inventory,
		899	// cf will crash below with off-map x and y
		900	if (!inv)
		901	return;
		902
		903	/* Only if the space blocks everything do we not process -
		904	* if some form of movement is allowed, let objects
		905	* drop on that space.
		906	*/
		907	if (!drop_to_ground
		908	|| !map
		909	|| map->in_memory != MAP_ACTIVE
		910	|| map->no_drop
		911	|| ms ().move_block == MOVE_ALL)
		912	{
		913	while (inv)
		914	inv->destroy ();
		915	}
		916	else
		917	{ /* Put objects in inventory onto this space */
		918	while (inv)
		919	{
		920	object *op = inv;
		921
		922	if (op->flag [FLAG_STARTEQUIP]
		923	|| op->flag [FLAG_NO_DROP]
		924	|| op->type == RUNE
		925	|| op->type == TRAP
		926	|| op->flag [FLAG_IS_A_TEMPLATE]
		927	|| op->flag [FLAG_DESTROY_ON_DEATH])
		928	op->destroy ();
		929	else
		930	map->insert (op, x, y);
		931	}
		932	}
889	}	933	}
890		934
891	object *object::create ()	935	object *object::create ()
892	{	936	{
893	object *op = new object;	937	object *op = new object;
894	op->link ();	938	op->link ();
895	return op;	939	return op;
896	}	940	}
897		941
898	/*	942	static struct freed_map : maptile
899	* free_object() frees everything allocated by an object, removes
900	* it from the list of used objects, and puts it on the list of
901	* free objects. The IS_FREED() flag is set in the object.
902	* The object must have been removed by remove_ob() first for
903	* this function to succeed.
904	*
905	* If destroy_inventory is set, free inventory as well. Else drop items in
906	* inventory to the ground.
907	*/
908	void object::destroy (bool destroy_inventory)
909	{	943	{
910	if (QUERY_FLAG (this, FLAG_FREED))	944	freed_map ()
		945	{
		946	path = "<freed objects map>";
		947	name = "/internal/freed_objects_map";
		948	width = 3;
		949	height = 3;
		950	no_drop = 1;
		951	no_reset = 1;
		952
		953	alloc ();
		954	in_memory = MAP_ACTIVE;
		955	}
		956
		957	~freed_map ()
		958	{
		959	destroy ();
		960	}
		961	} freed_map; // freed objects are moved here to avoid crashes
		962
		963	void
		964	object::do_destroy ()
		965	{
		966	if (flag [FLAG_IS_LINKED])
		967	remove_button_link (this);
		968
		969	if (flag [FLAG_FRIENDLY])
		970	remove_friendly_object (this);
		971
		972	remove ();
		973
		974	attachable::do_destroy ();
		975
		976	deactivate ();
		977	unlink ();
		978
		979	flag [FLAG_FREED] = 1;
		980
		981	// hack to ensure that freed objects still have a valid map
		982	map = &freed_map;
		983	x = 1;
		984	y = 1;
		985
		986	if (more)
		987	{
		988	more->destroy ();
		989	more = 0;
		990	}
		991
		992	head = 0;
		993
		994	// clear those pointers that likely might cause circular references
		995	owner = 0;
		996	enemy = 0;
		997	attacked_by = 0;
		998	current_weapon = 0;
		999	}
		1000
		1001	void
		1002	object::destroy ()
		1003	{
		1004	if (destroyed ())
911	return;	1005	return;
912		1006
913	if (QUERY_FLAG (this, FLAG_FRIENDLY))	1007	if (!is_head () && !head->destroyed ())
914	remove_friendly_object (this);
915
916	if (!QUERY_FLAG (this, FLAG_REMOVED))
917	remove ();
918
919	SET_FLAG (this, FLAG_FREED);
920
921	if (more)
922	{
923	more->destroy (destroy_inventory);
924	more = 0;
925	}
926
927	if (inv)
928	{
929	/* Only if the space blocks everything do we not process -
930	* if some form of movement is allowed, let objects
931	* drop on that space.
932	*/
933	if (destroy_inventory || !map || map->in_memory != MAP_IN_MEMORY || GET_MAP_MOVE_BLOCK (map, x, y) == MOVE_ALL)
934	{
935	object *op = inv;
936
937	while (op)
938	{
939	object *tmp = op->below;
940	op->destroy (destroy_inventory);
941	op = tmp;
942	}
943	}
944	else
945	{ /* Put objects in inventory onto this space */
946	object *op = inv;
947
948	while (op)
949	{
950	object *tmp = op->below;
951
952	op->remove ();
953
954	if (QUERY_FLAG (op, FLAG_STARTEQUIP)
955	|| QUERY_FLAG (op, FLAG_NO_DROP) || op->type == RUNE || op->type == TRAP || QUERY_FLAG (op, FLAG_IS_A_TEMPLATE))
956	op->destroy ();
957	else
958	{
959	op->x = x;
960	op->y = y;
961	insert_ob_in_map (op, map, 0, 0); /* Insert in same map as the envir */
962	}
963
964	op = tmp;
965	}
966	}
967	}
968
969	// hack to ensure that freed objects still have a valid map
970	{
971	static maptile *freed_map; // freed objects are moved here to avoid crashes
972
973	if (!freed_map)
974	{	1008	{
975	freed_map = new maptile;	1009	LOG (llevError | logBacktrace, "tried to destroy the tail of an object");
976		1010	head->destroy ();
977	freed_map->name = "/internal/freed_objects_map";	1011	return;
978	freed_map->width = 3;
979	freed_map->height = 3;
980
981	freed_map->allocate ();
982	}	1012	}
983		1013
984	map = freed_map;	1014	destroy_inv (false);
985	x = 1;
986	y = 1;
987	}
988		1015
989	// clear those pointers that likely might have circular references to us	1016	if (is_head ())
990	owner = 0;	1017	if (sound_destroy)
991	enemy = 0;	1018	play_sound (sound_destroy);
992	attacked_by = 0;	1019	else if (flag [FLAG_MONSTER])
		1020	play_sound (sound_find ("monster_destroy")); // quick hack, too lazy to create a generic mechanism
993		1021
994	// only relevant for players(?), but make sure of it anyways	1022	attachable::destroy ();
995	contr = 0;
996
997	/* Remove object from the active list */
998	speed = 0;
999	update_ob_speed (this);
1000
1001	unlink ();
1002
1003	mortals.push_back (this);
1004	}
1005
1006	/*
1007	* sub_weight() recursively (outwards) subtracts a number from the
1008	* weight of an object (and what is carried by it's environment(s)).
1009	*/
1010	void
1011	sub_weight (object *op, signed long weight)
1012	{
1013	while (op != NULL)
1014	{
1015	if (op->type == CONTAINER)
1016	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1017
1018	op->carrying -= weight;
1019	op = op->env;
1020	}
1021	}	1023	}
1022		1024
1023	/* op->remove ():	1025	/* op->remove ():
1024	* This function removes the object op from the linked list of objects	1026	* This function removes the object op from the linked list of objects
1025	* which it is currently tied to. When this function is done, the	1027	* which it is currently tied to. When this function is done, the
1026	* object will have no environment. If the object previously had an	1028	* object will have no environment. If the object previously had an
1027	* environment, the x and y coordinates will be updated to	1029	* environment, the x and y coordinates will be updated to
1028	* the previous environment.	1030	* the previous environment.
1029	* Beware: This function is called from the editor as well!
1030	*/	1031	*/
1031	void	1032	void
1032	object::remove ()	1033	object::do_remove ()
1033	{	1034	{
1034	object *tmp, *last = 0;	1035	object *tmp, *last = 0;
1035	object *otmp;	1036	object *otmp;
1036		1037
1037	int check_walk_off;	1038	if (flag [FLAG_REMOVED])
1038
1039	if (QUERY_FLAG (this, FLAG_REMOVED))
1040	return;	1039	return;
1041		1040
1042	SET_FLAG (this, FLAG_REMOVED);	1041	INVOKE_OBJECT (REMOVE, this);
		1042
		1043	flag [FLAG_REMOVED] = true;
1043		1044
1044	if (more)	1045	if (more)
1045	more->remove ();	1046	more->remove ();
1046		1047
1047	/*	1048	/*
1048	* In this case, the object to be removed is in someones	1049	* In this case, the object to be removed is in someones
1049	* inventory.	1050	* inventory.
1050	*/	1051	*/
1051	if (env)	1052	if (env)
1052	{	1053	{
1053	if (nrof)	1054	flag [FLAG_REMOVED] = false; // hack around the issue of visible_to checking flag_removed
1054	sub_weight (env, weight * nrof);	1055	if (object *pl = visible_to ())
1055	else	1056	esrv_del_item (pl->contr, count);
1056	sub_weight (env, weight + carrying);	1057	flag [FLAG_REMOVED] = true; // hack around the issue of visible_to checking flag_removed
		1058
		1059	adjust_weight (env, -total_weight ());
		1060
		1061	object *pl = in_player ();
		1062
		1063	/* we set up values so that it could be inserted into
		1064	* the map, but we don't actually do that - it is up
		1065	* to the caller to decide what we want to do.
		1066	*/
		1067	map = env->map;
		1068	x = env->x;
		1069	y = env->y;
		1070
		1071	// make sure cmov optimisation is applicable
		1072	*(above ? &above->below : &env->inv) = below;
		1073	*(below ? &below->above : &above ) = above; // &above is just a dummy
		1074
		1075	above = 0;
		1076	below = 0;
		1077	env = 0;
1057		1078
1058	/* NO_FIX_PLAYER is set when a great many changes are being	1079	/* NO_FIX_PLAYER is set when a great many changes are being
1059	* made to players inventory. If set, avoiding the call	1080	* made to players inventory. If set, avoiding the call
1060	* to save cpu time.	1081	* to save cpu time.
1061	*/	1082	*/
1062	if ((otmp = is_player_inv (env)) != NULL && otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))	1083	if (pl)
1063	fix_player (otmp);	1084	if (pl->contr && !QUERY_FLAG (pl, FLAG_NO_FIX_PLAYER))
		1085	{
		1086	pl->update_stats ();
1064		1087
1065	if (above != NULL)	1088	if (affects_los () && pl->is_on_map () && pl->map->darkness)
1066	above->below = below;	1089	update_all_los (pl->map, pl->x, pl->y);
1067	else	1090	}
1068	env->inv = below;
1069
1070	if (below != NULL)
1071	below->above = above;
1072
1073	/* we set up values so that it could be inserted into
1074	* the map, but we don't actually do that - it is up
1075	* to the caller to decide what we want to do.
1076	*/
1077	x = env->x, y = env->y;
1078	map = env->map;
1079	above = 0, below = 0;
1080	env = 0;
1081	}	1091	}
1082	else if (map)	1092	else if (map)
1083	{	1093	{
1084	/* Re did the following section of code - it looks like it had	1094	map->dirty = true;
1085	* lots of logic for things we no longer care about	1095	mapspace &ms = this->ms ();
		1096
		1097	if (object *pl = ms.player ())
1086	*/	1098	{
		1099	if (type == PLAYER) // this == pl(!)
		1100	{
		1101	// leaving a spot always closes any open container on the ground
		1102	if (container && !container->env)
		1103	// this causes spurious floorbox updates, but it ensures
		1104	// that the CLOSE event is being sent.
		1105	close_container ();
		1106
		1107	--map->players;
		1108	map->touch ();
		1109	}
		1110	else if (pl->container == this)
		1111	{
		1112	// removing a container should close it
		1113	close_container ();
		1114	}
		1115
		1116	esrv_del_item (pl->contr, count);
		1117	}
1087		1118
1088	/* link the object above us */	1119	/* link the object above us */
1089	if (above)	1120	// re-link, make sure compiler can easily use cmove
1090	above->below = below;	1121	*(above ? &above->below : &ms.top) = below;
1091	else	1122	*(below ? &below->above : &ms.bot) = above;
1092	SET_MAP_TOP (map, x, y, below); /* we were top, set new top */
1093
1094	/* Relink the object below us, if there is one */
1095	if (below)
1096	below->above = above;
1097	else
1098	{
1099	/* Nothing below, which means we need to relink map object for this space
1100	* use translated coordinates in case some oddness with map tiling is
1101	* evident
1102	*/
1103	if (GET_MAP_OB (map, x, y) != this)
1104	{
1105	char *dump = dump_object (this);
1106	LOG (llevError,
1107	"remove_ob: GET_MAP_OB does not return object to be removed even though it appears to be on the bottom?\n%s\n", dump);
1108	free (dump);
1109	dump = dump_object (GET_MAP_OB (map, x, y));
1110	LOG (llevError, "%s\n", dump);
1111	free (dump);
1112	}
1113
1114	SET_MAP_OB (map, x, y, above); /* goes on above it. */
1115	}
1116		1123
1117	above = 0;	1124	above = 0;
1118	below = 0;	1125	below = 0;
1119		1126
		1127	ms.invalidate ();
		1128
1120	if (map->in_memory == MAP_SAVING)	1129	if (map->in_memory == MAP_SAVING)
1121	return;	1130	return;
1122		1131
1123	check_walk_off = !QUERY_FLAG (this, FLAG_NO_APPLY);	1132	int check_walk_off = !flag [FLAG_NO_APPLY];
1124		1133
		1134	if (object *pl = ms.player ())
		1135	{
		1136	if (pl->container == this)
		1137	/* If a container that the player is currently using somehow gets
		1138	* removed (most likely destroyed), update the player view
		1139	* appropriately.
		1140	*/
		1141	pl->close_container ();
		1142
		1143	//TODO: the floorbox prev/next might need updating
		1144	//esrv_del_item (pl->contr, count);
		1145	//TODO: update floorbox to preserve ordering
		1146	if (pl->contr->ns)
		1147	pl->contr->ns->floorbox_update ();
		1148	}
		1149
1125	for (tmp = GET_MAP_OB (map, x, y); tmp; tmp = tmp->above)	1150	for (tmp = ms.bot; tmp; tmp = tmp->above)
1126	{	1151	{
1127	/* No point updating the players look faces if he is the object	1152	/* No point updating the players look faces if he is the object
1128	* being removed.	1153	* being removed.
1129	*/	1154	*/
1130		1155
1131	if (tmp->type == PLAYER && tmp != this)
1132	{
1133	/* If a container that the player is currently using somehow gets
1134	* removed (most likely destroyed), update the player view
1135	* appropriately.
1136	*/
1137	if (tmp->container == this)
1138	{
1139	CLEAR_FLAG (this, FLAG_APPLIED);
1140	tmp->container = 0;
1141	}
1142
1143	tmp->contr->socket.update_look = 1;
1144	}
1145
1146	/* See if player moving off should effect something */	1156	/* See if object moving off should effect something */
1147	if (check_walk_off	1157	if (check_walk_off
1148	&& ((move_type & tmp->move_off)	1158	&& ((move_type & tmp->move_off)
1149	&& (move_type & ~tmp->move_off & ~tmp->move_block) == 0))	1159	&& (move_type & ~tmp->move_off & ~tmp->move_block) == 0))
1150	{	1160	{
1151	move_apply (tmp, this, 0);	1161	move_apply (tmp, this, 0);
1152		1162
1153	if (destroyed ())	1163	if (destroyed ())
1154	LOG (llevError, "BUG: remove_ob(): name %s, destroyed leaving object\n", tmp->debug_desc ());	1164	LOG (llevError, "BUG: remove_ob(): name %s, destroyed leaving object\n", tmp->debug_desc ());
1155	}	1165	}
1156		1166
1157	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */
1158
1159	if (tmp->above == tmp)
1160	tmp->above = 0;
1161
1162	last = tmp;	1167	last = tmp;
1163	}	1168	}
1164		1169
1165	/* last == NULL of there are no objects on this space */	1170	if (map->darkness && affects_los ())
1166	if (!last)
1167	{
1168	/* set P_NEED_UPDATE, otherwise update_position will complain. In theory,
1169	* we could preserve the flags (GET_MAP_FLAGS), but update_position figures
1170	* those out anyways, and if there are any flags set right now, they won't
1171	* be correct anyways.
1172	*/
1173	SET_MAP_FLAGS (map, x, y, P_NEED_UPDATE);
1174	update_position (map, x, y);
1175	}
1176	else
1177	update_object (last, UP_OBJ_REMOVE);
1178
1179	if (QUERY_FLAG (this, FLAG_BLOCKSVIEW) || glow_radius)
1180	update_all_los (map, x, y);	1171	update_all_los (map, x, y);
1181	}	1172	}
1182	}	1173	}
1183		1174
1184	/*	1175	/*
…		…
1193	merge_ob (object *op, object *top)	1184	merge_ob (object *op, object *top)
1194	{	1185	{
1195	if (!op->nrof)	1186	if (!op->nrof)
1196	return 0;	1187	return 0;
1197		1188
1198	if (top == NULL)	1189	if (!top)
1199	for (top = op; top != NULL && top->above != NULL; top = top->above);	1190	for (top = op; top && top->above; top = top->above)
		1191	;
1200		1192
1201	for (; top != NULL; top = top->below)	1193	for (; top; top = top->below)
1202	{	1194	if (object::can_merge (op, top))
1203	if (top == op)
1204	continue;
1205	if (CAN_MERGE (op, top))
1206	{	1195	{
1207	top->nrof += op->nrof;	1196	top->nrof += op->nrof;
1208		1197
1209	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/	1198	if (object *pl = top->visible_to ())
1210	op->weight = 0; /* Don't want any adjustements now */	1199	esrv_update_item (UPD_NROF, pl, top);
		1200
		1201	op->weight = 0; // cancel the addition above
		1202	op->carrying = 0; // must be 0 already
		1203
1211	op->destroy ();	1204	op->destroy ();
		1205
1212	return top;	1206	return top;
1213	}	1207	}
1214	}
1215		1208
1216	return 0;	1209	return 0;
1217	}	1210	}
1218		1211
		1212	void
		1213	object::expand_tail ()
		1214	{
		1215	if (more)
		1216	return;
		1217
		1218	object *prev = this;
		1219
		1220	for (archetype *at = (archetype *)arch->more; at; at = (archetype *)at->more)
		1221	{
		1222	object *op = arch_to_object (at);
		1223
		1224	op->name = name;
		1225	op->name_pl = name_pl;
		1226	op->title = title;
		1227
		1228	op->head = this;
		1229	prev->more = op;
		1230
		1231	prev = op;
		1232	}
		1233	}
		1234
1219	/*	1235	/*
1220	* same as insert_ob_in_map except it handle separate coordinates and do a clean	1236	* same as insert_ob_in_map except it handles separate coordinates and does a clean
1221	* job preparing multi-part monsters	1237	* job preparing multi-part monsters.
1222	*/	1238	*/
1223	object *	1239	object *
1224	insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)	1240	insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)
1225	{	1241	{
1226	object *tmp;	1242	op->remove ();
1227		1243
1228	if (op->head)
1229	op = op->head;
1230
1231	for (tmp = op; tmp; tmp = tmp->more)	1244	for (object *tmp = op->head_ (); tmp; tmp = tmp->more)
1232	{	1245	{
1233	tmp->x = x + tmp->arch->clone.x;	1246	tmp->x = x + tmp->arch->x;
1234	tmp->y = y + tmp->arch->clone.y;	1247	tmp->y = y + tmp->arch->y;
1235	}	1248	}
1236		1249
1237	return insert_ob_in_map (op, m, originator, flag);	1250	return insert_ob_in_map (op, m, originator, flag);
1238	}	1251	}
1239		1252
…		…
1255	* Return value:	1268	* Return value:
1256	* new object if 'op' was merged with other object	1269	* new object if 'op' was merged with other object
1257	* NULL if 'op' was destroyed	1270	* NULL if 'op' was destroyed
1258	* just 'op' otherwise	1271	* just 'op' otherwise
1259	*/	1272	*/
1260
1261	object *	1273	object *
1262	insert_ob_in_map (object *op, maptile *m, object *originator, int flag)	1274	insert_ob_in_map (object *op, maptile *m, object *originator, int flag)
1263	{	1275	{
1264	object *tmp, *top, *floor = NULL;	1276	op->remove ();
1265	sint16 x, y;
1266		1277
1267	if (QUERY_FLAG (op, FLAG_FREED))	1278	if (m == &freed_map)//D TODO: remove soon
1268	{	1279	{//D
1269	LOG (llevError, "Trying to insert freed object!\n");	1280	LOG (llevError | logBacktrace, "tries to insret object on freed objects map: %s", op->debug_desc ());//D
1270	return NULL;
1271	}	1281	}//D
1272
1273	if (m == NULL)
1274	{
1275	char *dump = dump_object (op);
1276	LOG (llevError, "Trying to insert in null-map!\n%s\n", dump);
1277	free (dump);
1278	return op;
1279	}
1280
1281	if (out_of_map (m, op->x, op->y))
1282	{
1283	char *dump = dump_object (op);
1284	LOG (llevError, "Trying to insert object outside the map.\n%s\n", dump);
1285	#ifdef MANY_CORES
1286	/* Better to catch this here, as otherwise the next use of this object
1287	* is likely to cause a crash. Better to find out where it is getting
1288	* improperly inserted.
1289	*/
1290	abort ();
1291	#endif
1292	free (dump);
1293	return op;
1294	}
1295
1296	if (!QUERY_FLAG (op, FLAG_REMOVED))
1297	{
1298	char *dump = dump_object (op);
1299	LOG (llevError, "Trying to insert (map) inserted object.\n%s\n", dump);
1300	free (dump);
1301	return op;
1302	}
1303
1304	if (op->more != NULL)
1305	{
1306	/* The part may be on a different map. */
1307
1308	object *more = op->more;
1309
1310	/* We really need the caller to normalize coordinates - if
1311	* we set the map, that doesn't work if the location is within
1312	* a map and this is straddling an edge. So only if coordinate
1313	* is clear wrong do we normalize it.
1314	*/
1315	if (OUT_OF_REAL_MAP (more->map, more->x, more->y))
1316	more->map = get_map_from_coord (m, &more->x, &more->y);
1317	else if (!more->map)
1318	{
1319	/* For backwards compatibility - when not dealing with tiled maps,
1320	* more->map should always point to the parent.
1321	*/
1322	more->map = m;
1323	}
1324
1325	if (insert_ob_in_map (more, more->map, originator, flag) == NULL)
1326	{
1327	if (!op->head)
1328	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");
1329
1330	return NULL;
1331	}
1332	}
1333
1334	CLEAR_FLAG (op, FLAG_REMOVED);
1335		1282
1336	/* Ideally, the caller figures this out. However, it complicates a lot	1283	/* Ideally, the caller figures this out. However, it complicates a lot
1337	* of areas of callers (eg, anything that uses find_free_spot would now	1284	* of areas of callers (eg, anything that uses find_free_spot would now
1338	* need extra work	1285	* need extra work
1339	*/	1286	*/
1340	op->map = get_map_from_coord (m, &op->x, &op->y);	1287	if (!xy_normalise (m, op->x, op->y))
1341	x = op->x;	1288	{
1342	y = op->y;	1289	op->head_ ()->destroy ();// remove head_ once all tail object destroyers found
		1290	return 0;
		1291	}
		1292
		1293	if (object *more = op->more)
		1294	if (!insert_ob_in_map (more, m, originator, flag))
		1295	return 0;
		1296
		1297	CLEAR_FLAG (op, FLAG_REMOVED);
		1298
		1299	op->map = m;
		1300	mapspace &ms = op->ms ();
1343		1301
1344	/* this has to be done after we translate the coordinates.	1302	/* this has to be done after we translate the coordinates.
1345	*/	1303	*/
1346	if (op->nrof && !(flag & INS_NO_MERGE))	1304	if (op->nrof && !(flag & INS_NO_MERGE))
1347	for (tmp = GET_MAP_OB (op->map, x, y); tmp != NULL; tmp = tmp->above)	1305	for (object *tmp = ms.bot; tmp; tmp = tmp->above)
1348	if (CAN_MERGE (op, tmp))	1306	if (object::can_merge (op, tmp))
1349	{	1307	{
		1308	// TODO: we actually want to update tmp, not op,
		1309	// but some caller surely breaks when we return tmp
		1310	// from here :/
1350	op->nrof += tmp->nrof;	1311	op->nrof += tmp->nrof;
1351	tmp->destroy ();	1312	tmp->destroy ();
1352	}	1313	}
1353		1314
1354	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */	1315	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */
…		…
1363	{	1324	{
1364	LOG (llevError, "insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");	1325	LOG (llevError, "insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");
1365	abort ();	1326	abort ();
1366	}	1327	}
1367		1328
		1329	if (!originator->is_on_map ())
		1330	LOG (llevDebug | logBacktrace, "insert_ob_in_map(%s) called with INS_BELOW_ORIGINATOR when originator '%s' not on map",
		1331	op->debug_desc (), originator->debug_desc ());
		1332
1368	op->above = originator;	1333	op->above = originator;
1369	op->below = originator->below;	1334	op->below = originator->below;
1370
1371	if (op->below)
1372	op->below->above = op;
1373	else
1374	SET_MAP_OB (op->map, op->x, op->y, op);
1375
1376	/* since *below* originator, no need to update top */
1377	originator->below = op;	1335	originator->below = op;
		1336
		1337	*(op->below ? &op->below->above : &ms.bot) = op;
1378	}	1338	}
1379	else	1339	else
1380	{	1340	{
		1341	object *floor = 0;
		1342	object *top = ms.top;
		1343
1381	/* If there are other objects, then */	1344	/* If there are other objects, then */
1382	if ((!(flag & INS_MAP_LOAD)) && ((top = GET_MAP_OB (op->map, op->x, op->y)) != NULL))	1345	if (top)
1383	{	1346	{
1384	object *last = NULL;
1385
1386	/*	1347	/*
1387	* If there are multiple objects on this space, we do some trickier handling.	1348	* If there are multiple objects on this space, we do some trickier handling.
1388	* We've already dealt with merging if appropriate.	1349	* We've already dealt with merging if appropriate.
1389	* Generally, we want to put the new object on top. But if	1350	* Generally, we want to put the new object on top. But if
1390	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last	1351	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last
…		…
1393	* once we get to them. This reduces the need to traverse over all of	1354	* once we get to them. This reduces the need to traverse over all of
1394	* them when adding another one - this saves quite a bit of cpu time	1355	* them when adding another one - this saves quite a bit of cpu time
1395	* when lots of spells are cast in one area. Currently, it is presumed	1356	* when lots of spells are cast in one area. Currently, it is presumed
1396	* that flying non pickable objects are spell objects.	1357	* that flying non pickable objects are spell objects.
1397	*/	1358	*/
1398		1359	for (object *tmp = ms.bot; tmp; tmp = tmp->above)
1399	while (top != NULL)
1400	{	1360	{
1401	if (QUERY_FLAG (top, FLAG_IS_FLOOR) || QUERY_FLAG (top, FLAG_OVERLAY_FLOOR))	1361	if (QUERY_FLAG (tmp, FLAG_IS_FLOOR) || QUERY_FLAG (tmp, FLAG_OVERLAY_FLOOR))
1402	floor = top;	1362	floor = tmp;
1403		1363
1404	if (QUERY_FLAG (top, FLAG_NO_PICK) && (top->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (top, FLAG_IS_FLOOR))	1364	if (QUERY_FLAG (tmp, FLAG_NO_PICK) && (tmp->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (tmp, FLAG_IS_FLOOR))
1405	{	1365	{
1406	/* We insert above top, so we want this object below this */	1366	/* We insert above top, so we want this object below this */
1407	top = top->below;	1367	top = tmp->below;
1408	break;	1368	break;
1409	}	1369	}
1410		1370
1411	last = top;
1412	top = top->above;	1371	top = tmp;
1413	}	1372	}
1414
1415	/* Don't want top to be NULL, so set it to the last valid object */
1416	top = last;
1417		1373
1418	/* We let update_position deal with figuring out what the space	1374	/* We let update_position deal with figuring out what the space
1419	* looks like instead of lots of conditions here.	1375	* looks like instead of lots of conditions here.
1420	* makes things faster, and effectively the same result.	1376	* makes things faster, and effectively the same result.
1421	*/	1377	*/
1422		1378
1423	/* Have object 'fall below' other objects that block view.	1379	/* Have object 'fall below' other objects that block view.
1424	* Unless those objects are exits, type 66	1380	* Unless those objects are exits.
1425	* If INS_ON_TOP is used, don't do this processing	1381	* If INS_ON_TOP is used, don't do this processing
1426	* Need to find the object that in fact blocks view, otherwise	1382	* Need to find the object that in fact blocks view, otherwise
1427	* stacking is a bit odd.	1383	* stacking is a bit odd.
1428	*/	1384	*/
1429	if (!(flag & INS_ON_TOP) &&	1385	if (!(flag & INS_ON_TOP)
1430	(get_map_flags (op->map, NULL, op->x, op->y, NULL, NULL) & P_BLOCKSVIEW) && (op->face && !op->face->visibility))	1386	&& ms.flags () & P_BLOCKSVIEW
		1387	&& (op->face && !faces [op->face].visibility))
1431	{	1388	{
		1389	object *last;
		1390
1432	for (last = top; last != floor; last = last->below)	1391	for (last = top; last != floor; last = last->below)
1433	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))	1392	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))
1434	break;	1393	break;
		1394
1435	/* Check to see if we found the object that blocks view,	1395	/* Check to see if we found the object that blocks view,
1436	* and make sure we have a below pointer for it so that	1396	* and make sure we have a below pointer for it so that
1437	* we can get inserted below this one, which requires we	1397	* we can get inserted below this one, which requires we
1438	* set top to the object below us.	1398	* set top to the object below us.
1439	*/	1399	*/
1440	if (last && last->below && last != floor)	1400	if (last && last->below && last != floor)
1441	top = last->below;	1401	top = last->below;
1442	}	1402	}
1443	} /* If objects on this space */	1403	} /* If objects on this space */
1444		1404
1445	if (flag & INS_MAP_LOAD)
1446	top = GET_MAP_TOP (op->map, op->x, op->y);
1447
1448	if (flag & INS_ABOVE_FLOOR_ONLY)	1405	if (flag & INS_ABOVE_FLOOR_ONLY)
1449	top = floor;	1406	top = floor;
1450		1407
1451	/* Top is the object that our object (op) is going to get inserted above.	1408	// insert object above top, or bottom-most if top = 0
1452	*/
1453
1454	/* First object on this space */
1455	if (!top)	1409	if (!top)
1456	{	1410	{
1457	op->above = GET_MAP_OB (op->map, op->x, op->y);
1458
1459	if (op->above)
1460	op->above->below = op;
1461
1462	op->below = NULL;	1411	op->below = 0;
1463	SET_MAP_OB (op->map, op->x, op->y, op);	1412	op->above = ms.bot;
		1413	ms.bot = op;
		1414
		1415	*(op->above ? &op->above->below : &ms.top) = op;
1464	}	1416	}
1465	else	1417	else
1466	{ /* get inserted into the stack above top */	1418	{
1467	op->above = top->above;	1419	op->above = top->above;
1468
1469	if (op->above)
1470	op->above->below = op;	1420	top->above = op;
1471		1421
1472	op->below = top;	1422	op->below = top;
1473	top->above = op;	1423	*(op->above ? &op->above->below : &ms.top) = op;
1474	}	1424	}
1475		1425	}
1476	if (op->above == NULL)
1477	SET_MAP_TOP (op->map, op->x, op->y, op);
1478	} /* else not INS_BELOW_ORIGINATOR */
1479		1426
1480	if (op->type == PLAYER)	1427	if (op->type == PLAYER)
		1428	{
1481	op->contr->do_los = 1;	1429	op->contr->do_los = 1;
		1430	++op->map->players;
		1431	op->map->touch ();
		1432	}
1482		1433
1483	/* If we have a floor, we know the player, if any, will be above	1434	op->map->dirty = true;
1484	* it, so save a few ticks and start from there.	1435
1485	*/	1436	if (object *pl = ms.player ())
1486	if (!(flag & INS_MAP_LOAD))	1437	//TODO: the floorbox prev/next might need updating
1487	for (tmp = floor ? floor : GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)	1438	//esrv_send_item (pl, op);
1488	if (tmp->type == PLAYER)	1439	//TODO: update floorbox to preserve ordering
1489	tmp->contr->socket.update_look = 1;	1440	if (pl->contr->ns)
		1441	pl->contr->ns->floorbox_update ();
1490		1442
1491	/* If this object glows, it may affect lighting conditions that are	1443	/* If this object glows, it may affect lighting conditions that are
1492	* visible to others on this map. But update_all_los is really	1444	* visible to others on this map. But update_all_los is really
1493	* an inefficient way to do this, as it means los for all players	1445	* an inefficient way to do this, as it means los for all players
1494	* on the map will get recalculated. The players could very well	1446	* on the map will get recalculated. The players could very well
1495	* be far away from this change and not affected in any way -	1447	* be far away from this change and not affected in any way -
1496	* this should get redone to only look for players within range,	1448	* this should get redone to only look for players within range,
1497	* or just updating the P_NEED_UPDATE for spaces within this area	1449	* or just updating the P_UPTODATE for spaces within this area
1498	* of effect may be sufficient.	1450	* of effect may be sufficient.
1499	*/	1451	*/
1500	if (MAP_DARKNESS (op->map) && (op->glow_radius != 0))	1452	if (op->affects_los () && op->map->darkness)
		1453	{
		1454	op->ms ().invalidate ();
1501	update_all_los (op->map, op->x, op->y);	1455	update_all_los (op->map, op->x, op->y);
		1456	}
1502		1457
1503	/* updates flags (blocked, alive, no magic, etc) for this map space */	1458	/* updates flags (blocked, alive, no magic, etc) for this map space */
1504	update_object (op, UP_OBJ_INSERT);	1459	update_object (op, UP_OBJ_INSERT);
1505		1460
		1461	INVOKE_OBJECT (INSERT, op);
		1462
1506	/* Don't know if moving this to the end will break anything. However,	1463	/* Don't know if moving this to the end will break anything. However,
1507	* we want to have update_look set above before calling this.	1464	* we want to have floorbox_update called before calling this.
1508	*	1465	*
1509	* check_move_on() must be after this because code called from	1466	* check_move_on() must be after this because code called from
1510	* check_move_on() depends on correct map flags (so functions like	1467	* check_move_on() depends on correct map flags (so functions like
1511	* blocked() and wall() work properly), and these flags are updated by	1468	* blocked() and wall() work properly), and these flags are updated by
1512	* update_object().	1469	* update_object().
1513	*/	1470	*/
1514		1471
1515	/* if this is not the head or flag has been passed, don't check walk on status */	1472	/* if this is not the head or flag has been passed, don't check walk on status */
1516	if (!(flag & INS_NO_WALK_ON) && !op->head)	1473	if (!(flag & INS_NO_WALK_ON) && op->head_ () == op)
1517	{	1474	{
1518	if (check_move_on (op, originator))	1475	if (check_move_on (op, originator))
1519	return NULL;	1476	return 0;
1520		1477
1521	/* If we are a multi part object, lets work our way through the check	1478	/* If we are a multi part object, lets work our way through the check
1522	* walk on's.	1479	* walk on's.
1523	*/	1480	*/
1524	for (tmp = op->more; tmp != NULL; tmp = tmp->more)	1481	for (object *tmp = op->more; tmp; tmp = tmp->more)
1525	if (check_move_on (tmp, originator))	1482	if (check_move_on (tmp, originator))
1526	return NULL;	1483	return 0;
1527	}	1484	}
1528		1485
1529	return op;	1486	return op;
1530	}	1487	}
1531		1488
1532	/* this function inserts an object in the map, but if it	1489	/* this function inserts an object in the map, but if it
1533	* finds an object of its own type, it'll remove that one first.	1490	* finds an object of its own type, it'll remove that one first.
1534	* op is the object to insert it under: supplies x and the map.	1491	* op is the object to insert it under: supplies x and the map.
1535	*/	1492	*/
1536	void	1493	void
1537	replace_insert_ob_in_map (const char *arch_string, object *op)	1494	replace_insert_ob_in_map (const char *arch_string, object *op)
1538	{	1495	{
1539	object *
1540	tmp;
1541	object *
1542	tmp1;
1543
1544	/* first search for itself and remove any old instances */	1496	/* first search for itself and remove any old instances */
1545		1497
1546	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)	1498	for (object *tmp = op->ms ().bot; tmp; tmp = tmp->above)
1547	if (!strcmp (tmp->arch->name, arch_string)) /* same archetype */	1499	if (!strcmp (tmp->arch->archname, arch_string)) /* same archetype */
1548	tmp->destroy ();	1500	tmp->destroy ();
1549		1501
1550	tmp1 = arch_to_object (archetype::find (arch_string));	1502	object *tmp = arch_to_object (archetype::find (arch_string));
1551		1503
1552	tmp1->x = op->x;	1504	tmp->x = op->x;
1553	tmp1->y = op->y;	1505	tmp->y = op->y;
		1506
1554	insert_ob_in_map (tmp1, op->map, op, 0);	1507	insert_ob_in_map (tmp, op->map, op, 0);
1555	}	1508	}
1556
1557	/*
1558	* get_split_ob(ob,nr) splits up ob into two parts. The part which
1559	* is returned contains nr objects, and the remaining parts contains
1560	* the rest (or is removed and freed if that number is 0).
1561	* On failure, NULL is returned, and the reason put into the
1562	* global static errmsg array.
1563	*/
1564		1509
1565	object *	1510	object *
1566	get_split_ob (object *orig_ob, uint32 nr)	1511	object::insert_at (object *where, object *originator, int flags)
1567	{	1512	{
1568	object *newob;	1513	if (where->env)
1569	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);	1514	return where->env->insert (this);
1570		1515	else
1571	if (orig_ob->nrof < nr)	1516	return where->map->insert (this, where->x, where->y, originator, flags);
1572	{
1573	sprintf (errmsg, "There are only %d %ss.", orig_ob->nrof ? orig_ob->nrof : 1, &orig_ob->name);
1574	return NULL;
1575	}
1576
1577	newob = object_create_clone (orig_ob);
1578
1579	if ((orig_ob->nrof -= nr) < 1)
1580	orig_ob->destroy (1);
1581	else if (!is_removed)
1582	{
1583	if (orig_ob->env != NULL)
1584	sub_weight (orig_ob->env, orig_ob->weight * nr);
1585	if (orig_ob->env == NULL && orig_ob->map->in_memory != MAP_IN_MEMORY)
1586	{
1587	strcpy (errmsg, "Tried to split object whose map is not in memory.");
1588	LOG (llevDebug, "Error, Tried to split object whose map is not in memory.\n");
1589	return NULL;
1590	}
1591	}
1592
1593	newob->nrof = nr;
1594
1595	return newob;
1596	}	1517	}
1597		1518
1598	/*	1519	/*
1599	* decrease_ob_nr(object, number) decreases a specified number from	1520	* decrease(object, number) decreases a specified number from
1600	* the amount of an object. If the amount reaches 0, the object	1521	* the amount of an object. If the amount reaches 0, the object
1601	* is subsequently removed and freed.	1522	* is subsequently removed and freed.
1602	*	1523	*
1603	* Return value: 'op' if something is left, NULL if the amount reached 0	1524	* Return value: 'op' if something is left, NULL if the amount reached 0
1604	*/	1525	*/
		1526	bool
		1527	object::decrease (sint32 nr)
		1528	{
		1529	if (!nr)
		1530	return true;
1605		1531
		1532	nr = min (nr, nrof);
		1533
		1534	if (nrof > nr)
		1535	{
		1536	nrof -= nr;
		1537	adjust_weight (env, -weight * max (1, nr)); // carrying == 0
		1538
		1539	if (object *pl = visible_to ())
		1540	esrv_update_item (UPD_NROF, pl, this);
		1541
		1542	return true;
		1543	}
		1544	else
		1545	{
		1546	destroy ();
		1547	return false;
		1548	}
		1549	}
		1550
		1551	/*
		1552	* split(ob,nr) splits up ob into two parts. The part which
		1553	* is returned contains nr objects, and the remaining parts contains
		1554	* the rest (or is removed and returned if that number is 0).
		1555	* On failure, NULL is returned.
		1556	*/
1606	object *	1557	object *
1607	decrease_ob_nr (object *op, uint32 i)	1558	object::split (sint32 nr)
1608	{	1559	{
1609	object *tmp;	1560	int have = number_of ();
1610	player *pl;
1611		1561
1612	if (i == 0) /* objects with op->nrof require this check */	1562	if (have < nr)
1613	return op;	1563	return 0;
1614		1564	else if (have == nr)
1615	if (i > op->nrof)
1616	i = op->nrof;
1617
1618	if (QUERY_FLAG (op, FLAG_REMOVED))
1619	op->nrof -= i;
1620	else if (op->env != NULL)
1621	{	1565	{
1622	/* is this object in the players inventory, or sub container
1623	* therein?
1624	*/
1625	tmp = is_player_inv (op->env);
1626	/* nope. Is this a container the player has opened?
1627	* If so, set tmp to that player.
1628	* IMO, searching through all the players will mostly
1629	* likely be quicker than following op->env to the map,
1630	* and then searching the map for a player.
1631	*/
1632	if (!tmp)
1633	{
1634	for (pl = first_player; pl; pl = pl->next)
1635	if (pl->ob->container == op->env)
1636	break;
1637	if (pl)
1638	tmp = pl->ob;
1639	else
1640	tmp = NULL;
1641	}
1642
1643	if (i < op->nrof)
1644	{
1645	sub_weight (op->env, op->weight * i);
1646	op->nrof -= i;
1647	if (tmp)
1648	{
1649	esrv_send_item (tmp, op);
1650	}
1651	}
1652	else
1653	{
1654	op->remove ();	1566	remove ();
1655	op->nrof = 0;	1567	return this;
1656	if (tmp)
1657	{
1658	esrv_del_item (tmp->contr, op->count);
1659	}
1660	}
1661	}	1568	}
1662	else	1569	else
1663	{	1570	{
1664	object *above = op->above;	1571	decrease (nr);
1665		1572
1666	if (i < op->nrof)	1573	object *op = deep_clone ();
1667	op->nrof -= i;	1574	op->nrof = nr;
1668	else
1669	{
1670	op->remove ();
1671	op->nrof = 0;
1672	}
1673
1674	/* Since we just removed op, op->above is null */
1675	for (tmp = above; tmp != NULL; tmp = tmp->above)
1676	if (tmp->type == PLAYER)
1677	{
1678	if (op->nrof)
1679	esrv_send_item (tmp, op);
1680	else
1681	esrv_del_item (tmp->contr, op->count);
1682	}
1683	}
1684
1685	if (op->nrof)
1686	return op;	1575	return op;
1687	else
1688	{
1689	op->destroy ();
1690	return NULL;
1691	}
1692	}
1693
1694	/*
1695	* add_weight(object, weight) adds the specified weight to an object,
1696	* and also updates how much the environment(s) is/are carrying.
1697	*/
1698
1699	void
1700	add_weight (object *op, signed long weight)
1701	{
1702	while (op != NULL)
1703	{
1704	if (op->type == CONTAINER)
1705	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1706
1707	op->carrying += weight;
1708	op = op->env;
1709	}	1576	}
1710	}	1577	}
1711		1578
1712	object *	1579	object *
1713	insert_ob_in_ob (object *op, object *where)	1580	insert_ob_in_ob (object *op, object *where)
…		…
1718	LOG (llevError, "Trying to put object in NULL.\n%s\n", dump);	1585	LOG (llevError, "Trying to put object in NULL.\n%s\n", dump);
1719	free (dump);	1586	free (dump);
1720	return op;	1587	return op;
1721	}	1588	}
1722		1589
1723	if (where->head)	1590	if (where->head_ () != where)
1724	{	1591	{
1725	LOG (llevDebug, "Warning: Tried to insert object into wrong part of multipart object.\n");	1592	LOG (llevError | logBacktrace, "Warning: Tried to insert object into wrong part of multipart object.\n");
1726	where = where->head;	1593	where = where->head;
1727	}	1594	}
1728		1595
1729	return where->insert (op);	1596	return where->insert (op);
1730	}	1597	}
…		…
1735	* inside the object environment.	1602	* inside the object environment.
1736	*	1603	*
1737	* The function returns now pointer to inserted item, and return value can	1604	* The function returns now pointer to inserted item, and return value can
1738	* be != op, if items are merged. -Tero	1605	* be != op, if items are merged. -Tero
1739	*/	1606	*/
1740
1741	object *	1607	object *
1742	object::insert (object *op)	1608	object::insert (object *op)
1743	{	1609	{
1744	object *tmp, *otmp;
1745
1746	if (!QUERY_FLAG (op, FLAG_REMOVED))
1747	op->remove ();
1748
1749	if (op->more)	1610	if (op->more)
1750	{	1611	{
1751	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);	1612	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);
1752	return op;	1613	return op;
1753	}	1614	}
1754		1615
1755	CLEAR_FLAG (op, FLAG_OBJ_ORIGINAL);	1616	op->remove ();
1756	CLEAR_FLAG (op, FLAG_REMOVED);	1617
		1618	op->flag [FLAG_OBJ_ORIGINAL] = 0;
		1619
1757	if (op->nrof)	1620	if (op->nrof)
1758	{
1759	for (tmp = inv; tmp != NULL; tmp = tmp->below)	1621	for (object *tmp = inv; tmp; tmp = tmp->below)
1760	if (CAN_MERGE (tmp, op))	1622	if (object::can_merge (tmp, op))
1761	{	1623	{
1762	/* return the original object and remove inserted object	1624	/* return the original object and remove inserted object
1763	(client needs the original object) */	1625	(client needs the original object) */
1764	tmp->nrof += op->nrof;	1626	tmp->nrof += op->nrof;
1765	/* Weight handling gets pretty funky. Since we are adding to	1627
1766	* tmp->nrof, we need to increase the weight.	1628	if (object *pl = tmp->visible_to ())
1767	*/	1629	esrv_update_item (UPD_NROF, pl, tmp);
		1630
1768	add_weight (this, op->weight * op->nrof);	1631	adjust_weight (this, op->total_weight ());
1769	SET_FLAG (op, FLAG_REMOVED);	1632
1770	op->destroy (); /* free the inserted object */	1633	op->destroy ();
1771	op = tmp;	1634	op = tmp;
1772	op->remove (); /* and fix old object's links */	1635	goto inserted;
1773	CLEAR_FLAG (op, FLAG_REMOVED);
1774	break;
1775	}	1636	}
1776		1637
1777	/* I assume combined objects have no inventory	1638	op->owner = 0; // it's his/hers now. period.
1778	* We add the weight - this object could have just been removed
1779	* (if it was possible to merge). calling remove_ob will subtract
1780	* the weight, so we need to add it in again, since we actually do
1781	* the linking below
1782	*/
1783	add_weight (this, op->weight * op->nrof);
1784	}
1785	else
1786	add_weight (this, (op->weight + op->carrying));
1787
1788	otmp = is_player_inv (this);
1789	if (otmp && otmp->contr)
1790	if (!QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1791	fix_player (otmp);
1792
1793	op->map = NULL;	1639	op->map = 0;
		1640	op->x = 0;
		1641	op->y = 0;
		1642
		1643	op->above = 0;
		1644	op->below = inv;
1794	op->env = this;	1645	op->env = this;
1795	op->above = NULL;
1796	op->below = NULL;
1797	op->x = 0, op->y = 0;
1798		1646
		1647	if (inv)
		1648	inv->above = op;
		1649
		1650	inv = op;
		1651
		1652	op->flag [FLAG_REMOVED] = 0;
		1653
		1654	if (object *pl = op->visible_to ())
		1655	esrv_send_item (pl, op);
		1656
		1657	adjust_weight (this, op->total_weight ());
		1658
		1659	inserted:
1799	/* reset the light list and los of the players on the map */	1660	/* reset the light list and los of the players on the map */
1800	if ((op->glow_radius != 0) && map)	1661	if (op->glow_radius && is_on_map () && map->darkness)
1801	{	1662	{
1802	#ifdef DEBUG_LIGHTS	1663	update_stats ();
1803	LOG (llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n", op->name);
1804	#endif /* DEBUG_LIGHTS */
1805	if (MAP_DARKNESS (map))
1806	update_all_los (map, x, y);	1664	update_all_los (map, x, y);
1807	}
1808
1809	/* Client has no idea of ordering so lets not bother ordering it here.
1810	* It sure simplifies this function...
1811	*/
1812	if (!inv)
1813	inv = op;
1814	else
1815	{	1665	}
1816	op->below = inv;	1666	else if (type == PLAYER && !flag [FLAG_NO_FIX_PLAYER])
1817	op->below->above = op;	1667	// if this is a player's inventory, update stats
1818	inv = op;	1668	update_stats ();
1819	}	1669
		1670	INVOKE_OBJECT (INSERT, this);
1820		1671
1821	return op;	1672	return op;
1822	}	1673	}
1823		1674
1824	/*	1675	/*
…		…
1839	*	1690	*
1840	* MSW 2001-07-08: Check all objects on space, not just those below	1691	* MSW 2001-07-08: Check all objects on space, not just those below
1841	* object being inserted. insert_ob_in_map may not put new objects	1692	* object being inserted. insert_ob_in_map may not put new objects
1842	* on top.	1693	* on top.
1843	*/	1694	*/
1844
1845	int	1695	int
1846	check_move_on (object *op, object *originator)	1696	check_move_on (object *op, object *originator)
1847	{	1697	{
1848	object *tmp;	1698	object *tmp;
1849	maptile *m = op->map;	1699	maptile *m = op->map;
…		…
1876		1726
1877	/* The objects have to be checked from top to bottom.	1727	/* The objects have to be checked from top to bottom.
1878	* Hence, we first go to the top:	1728	* Hence, we first go to the top:
1879	*/	1729	*/
1880		1730
1881	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL && tmp->above != NULL; tmp = tmp->above)	1731	for (tmp = op->ms ().bot; tmp && tmp->above; tmp = tmp->above)
1882	{	1732	{
1883	/* Trim the search when we find the first other spell effect	1733	/* Trim the search when we find the first other spell effect
1884	* this helps performance so that if a space has 50 spell objects,	1734	* this helps performance so that if a space has 50 spell objects,
1885	* we don't need to check all of them.	1735	* we don't need to check all of them.
1886	*/	1736	*/
…		…
1904	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||	1754	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||
1905	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))	1755	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))
1906	{	1756	{
1907		1757
1908	float	1758	float
1909	diff = tmp->move_slow_penalty * FABS (op->speed);	1759	diff = tmp->move_slow_penalty * fabs (op->speed);
1910		1760
1911	if (op->type == PLAYER)	1761	if (op->type == PLAYER)
1912	if ((QUERY_FLAG (tmp, FLAG_IS_HILLY) && find_skill_by_number (op, SK_CLIMBING)) ||	1762	if ((QUERY_FLAG (tmp, FLAG_IS_HILLY) && find_skill_by_number (op, SK_CLIMBING)) ||
1913	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))	1763	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))
1914	diff /= 4.0;	1764	diff /= 4.0;
…		…
1941	/*	1791	/*
1942	* present_arch(arch, map, x, y) searches for any objects with	1792	* present_arch(arch, map, x, y) searches for any objects with
1943	* a matching archetype at the given map and coordinates.	1793	* a matching archetype at the given map and coordinates.
1944	* The first matching object is returned, or NULL if none.	1794	* The first matching object is returned, or NULL if none.
1945	*/	1795	*/
1946
1947	object *	1796	object *
1948	present_arch (const archetype *at, maptile *m, int x, int y)	1797	present_arch (const archetype *at, maptile *m, int x, int y)
1949	{	1798	{
1950	object *
1951	tmp;
1952
1953	if (m == NULL || out_of_map (m, x, y))	1799	if (!m || out_of_map (m, x, y))
1954	{	1800	{
1955	LOG (llevError, "Present_arch called outside map.\n");	1801	LOG (llevError, "Present_arch called outside map.\n");
1956	return NULL;	1802	return NULL;
1957	}	1803	}
1958	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)	1804
1959	if (tmp->arch == at)	1805	for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)
		1806	if (tmp->arch->archname == at->archname)
1960	return tmp;	1807	return tmp;
		1808
1961	return NULL;	1809	return NULL;
1962	}	1810	}
1963		1811
1964	/*	1812	/*
1965	* present(type, map, x, y) searches for any objects with	1813	* present(type, map, x, y) searches for any objects with
1966	* a matching type variable at the given map and coordinates.	1814	* a matching type variable at the given map and coordinates.
1967	* The first matching object is returned, or NULL if none.	1815	* The first matching object is returned, or NULL if none.
1968	*/	1816	*/
1969
1970	object *	1817	object *
1971	present (unsigned char type, maptile *m, int x, int y)	1818	present (unsigned char type, maptile *m, int x, int y)
1972	{	1819	{
1973	object *
1974	tmp;
1975
1976	if (out_of_map (m, x, y))	1820	if (out_of_map (m, x, y))
1977	{	1821	{
1978	LOG (llevError, "Present called outside map.\n");	1822	LOG (llevError, "Present called outside map.\n");
1979	return NULL;	1823	return NULL;
1980	}	1824	}
1981	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)	1825
		1826	for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)
1982	if (tmp->type == type)	1827	if (tmp->type == type)
1983	return tmp;	1828	return tmp;
		1829
1984	return NULL;	1830	return NULL;
1985	}	1831	}
1986		1832
1987	/*	1833	/*
1988	* present_in_ob(type, object) searches for any objects with	1834	* present_in_ob(type, object) searches for any objects with
1989	* a matching type variable in the inventory of the given object.	1835	* a matching type variable in the inventory of the given object.
1990	* The first matching object is returned, or NULL if none.	1836	* The first matching object is returned, or NULL if none.
1991	*/	1837	*/
1992
1993	object *	1838	object *
1994	present_in_ob (unsigned char type, const object *op)	1839	present_in_ob (unsigned char type, const object *op)
1995	{	1840	{
1996	object *
1997	tmp;
1998
1999	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1841	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
2000	if (tmp->type == type)	1842	if (tmp->type == type)
2001	return tmp;	1843	return tmp;
		1844
2002	return NULL;	1845	return NULL;
2003	}	1846	}
2004		1847
2005	/*	1848	/*
2006	* present_in_ob (type, str, object) searches for any objects with	1849	* present_in_ob (type, str, object) searches for any objects with
…		…
2014	* str is the string to match against. Note that we match against	1857	* str is the string to match against. Note that we match against
2015	* the object name, not the archetype name. this is so that the	1858	* the object name, not the archetype name. this is so that the
2016	* spell code can use one object type (force), but change it's name	1859	* spell code can use one object type (force), but change it's name
2017	* to be unique.	1860	* to be unique.
2018	*/	1861	*/
2019
2020	object *	1862	object *
2021	present_in_ob_by_name (int type, const char *str, const object *op)	1863	present_in_ob_by_name (int type, const char *str, const object *op)
2022	{	1864	{
2023	object *
2024	tmp;
2025
2026	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1865	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2027	{
2028	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))	1866	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))
2029	return tmp;	1867	return tmp;
2030	}	1868
2031	return NULL;	1869	return 0;
2032	}	1870	}
2033		1871
2034	/*	1872	/*
2035	* present_arch_in_ob(archetype, object) searches for any objects with	1873	* present_arch_in_ob(archetype, object) searches for any objects with
2036	* a matching archetype in the inventory of the given object.	1874	* a matching archetype in the inventory of the given object.
2037	* The first matching object is returned, or NULL if none.	1875	* The first matching object is returned, or NULL if none.
2038	*/	1876	*/
2039
2040	object *	1877	object *
2041	present_arch_in_ob (const archetype *at, const object *op)	1878	present_arch_in_ob (const archetype *at, const object *op)
2042	{	1879	{
2043	object *
2044	tmp;
2045
2046	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1880	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2047	if (tmp->arch == at)	1881	if (tmp->arch->archname == at->archname)
2048	return tmp;	1882	return tmp;
		1883
2049	return NULL;	1884	return NULL;
2050	}	1885	}
2051		1886
2052	/*	1887	/*
2053	* activate recursively a flag on an object inventory	1888	* activate recursively a flag on an object inventory
2054	*/	1889	*/
2055	void	1890	void
2056	flag_inv (object *op, int flag)	1891	flag_inv (object *op, int flag)
2057	{	1892	{
2058	object *
2059	tmp;
2060
2061	if (op->inv)
2062	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1893	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2063	{	1894	{
2064	SET_FLAG (tmp, flag);	1895	SET_FLAG (tmp, flag);
2065	flag_inv (tmp, flag);	1896	flag_inv (tmp, flag);
2066	}	1897	}
2067	} /*	1898	}
		1899
		1900	/*
2068	* desactivate recursively a flag on an object inventory	1901	* deactivate recursively a flag on an object inventory
2069	*/	1902	*/
2070	void	1903	void
2071	unflag_inv (object *op, int flag)	1904	unflag_inv (object *op, int flag)
2072	{	1905	{
2073	object *
2074	tmp;
2075
2076	if (op->inv)
2077	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1906	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2078	{	1907	{
2079	CLEAR_FLAG (tmp, flag);	1908	CLEAR_FLAG (tmp, flag);
2080	unflag_inv (tmp, flag);	1909	unflag_inv (tmp, flag);
2081	}	1910	}
2082	}
2083
2084	/*
2085	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in
2086	* all it's inventory (recursively).
2087	* If checksums are used, a player will get set_cheat called for
2088	* him/her-self and all object carried by a call to this function.
2089	*/
2090
2091	void
2092	set_cheat (object *op)
2093	{
2094	SET_FLAG (op, FLAG_WAS_WIZ);
2095	flag_inv (op, FLAG_WAS_WIZ);
2096	}	1911	}
2097		1912
2098	/*	1913	/*
2099	* find_free_spot(object, map, x, y, start, stop) will search for	1914	* find_free_spot(object, map, x, y, start, stop) will search for
2100	* a spot at the given map and coordinates which will be able to contain	1915	* a spot at the given map and coordinates which will be able to contain
…		…
2102	* to search (see the freearr_x/y[] definition).	1917	* to search (see the freearr_x/y[] definition).
2103	* It returns a random choice among the alternatives found.	1918	* It returns a random choice among the alternatives found.
2104	* start and stop are where to start relative to the free_arr array (1,9	1919	* start and stop are where to start relative to the free_arr array (1,9
2105	* does all 4 immediate directions). This returns the index into the	1920	* does all 4 immediate directions). This returns the index into the
2106	* array of the free spot, -1 if no spot available (dir 0 = x,y)	1921	* array of the free spot, -1 if no spot available (dir 0 = x,y)
2107	* Note - this only checks to see if there is space for the head of the
2108	* object - if it is a multispace object, this should be called for all
2109	* pieces.
2110	* Note2: This function does correctly handle tiled maps, but does not	1922	* Note: This function does correctly handle tiled maps, but does not
2111	* inform the caller. However, insert_ob_in_map will update as	1923	* inform the caller. However, insert_ob_in_map will update as
2112	* necessary, so the caller shouldn't need to do any special work.	1924	* necessary, so the caller shouldn't need to do any special work.
2113	* Note - updated to take an object instead of archetype - this is necessary	1925	* Note - updated to take an object instead of archetype - this is necessary
2114	* because arch_blocked (now ob_blocked) needs to know the movement type	1926	* because arch_blocked (now ob_blocked) needs to know the movement type
2115	* to know if the space in question will block the object. We can't use	1927	* to know if the space in question will block the object. We can't use
2116	* the archetype because that isn't correct if the monster has been	1928	* the archetype because that isn't correct if the monster has been
2117	* customized, changed states, etc.	1929	* customized, changed states, etc.
2118	*/	1930	*/
2119
2120	int	1931	int
2121	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)	1932	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)
2122	{	1933	{
2123	int
2124	i,
2125	index = 0, flag;
2126	static int
2127	altern[SIZEOFFREE];	1934	int altern[SIZEOFFREE];
		1935	int index = 0, flag;
2128		1936
2129	for (i = start; i < stop; i++)	1937	for (int i = start; i < stop; i++)
2130	{	1938	{
2131	flag = ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]);	1939	mapxy pos (m, x, y); pos.move (i);
2132	if (!flag)	1940
		1941	if (!pos.normalise ())
		1942	continue;
		1943
		1944	mapspace &ms = *pos;
		1945
		1946	if (ms.flags () & P_IS_ALIVE)
		1947	continue;
		1948
		1949	/* However, often
		1950	* ob doesn't have any move type (when used to place exits)
		1951	* so the AND operation in OB_TYPE_MOVE_BLOCK doesn't work.
		1952	*/
		1953	if (ob && ob->move_type == 0 && ms.move_block != MOVE_ALL)
		1954	{
2133	altern[index++] = i;	1955	altern [index++] = i;
		1956	continue;
		1957	}
2134		1958
2135	/* Basically, if we find a wall on a space, we cut down the search size.	1959	/* Basically, if we find a wall on a space, we cut down the search size.
2136	* In this way, we won't return spaces that are on another side of a wall.	1960	* In this way, we won't return spaces that are on another side of a wall.
2137	* This mostly work, but it cuts down the search size in all directions -	1961	* This mostly work, but it cuts down the search size in all directions -
2138	* if the space being examined only has a wall to the north and empty	1962	* if the space being examined only has a wall to the north and empty
2139	* spaces in all the other directions, this will reduce the search space	1963	* spaces in all the other directions, this will reduce the search space
2140	* to only the spaces immediately surrounding the target area, and	1964	* to only the spaces immediately surrounding the target area, and
2141	* won't look 2 spaces south of the target space.	1965	* won't look 2 spaces south of the target space.
2142	*/	1966	*/
2143	else if ((flag & AB_NO_PASS) && maxfree[i] < stop)	1967	if (ms.move_block == MOVE_ALL && maxfree[i] < stop)
		1968	{
2144	stop = maxfree[i];	1969	stop = maxfree[i];
		1970	continue;
		1971	}
		1972
		1973	/* Note it is intentional that we check ob - the movement type of the
		1974	* head of the object should correspond for the entire object.
		1975	*/
		1976	if (OB_TYPE_MOVE_BLOCK (ob, ms.move_block))
		1977	continue;
		1978
		1979	if (ob->blocked (pos.m, pos.x, pos.y))
		1980	continue;
		1981
		1982	altern [index++] = i;
2145	}	1983	}
		1984
2146	if (!index)	1985	if (!index)
2147	return -1;	1986	return -1;
		1987
2148	return altern[RANDOM () % index];	1988	return altern [rndm (index)];
2149	}	1989	}
2150		1990
2151	/*	1991	/*
2152	* find_first_free_spot(archetype, maptile, x, y) works like	1992	* find_first_free_spot(archetype, maptile, x, y) works like
2153	* find_free_spot(), but it will search max number of squares.	1993	* find_free_spot(), but it will search max number of squares.
2154	* But it will return the first available spot, not a random choice.	1994	* But it will return the first available spot, not a random choice.
2155	* Changed 0.93.2: Have it return -1 if there is no free spot available.	1995	* Changed 0.93.2: Have it return -1 if there is no free spot available.
2156	*/	1996	*/
2157
2158	int	1997	int
2159	find_first_free_spot (const object *ob, maptile *m, int x, int y)	1998	find_first_free_spot (const object *ob, maptile *m, int x, int y)
2160	{	1999	{
2161	int
2162	i;
2163
2164	for (i = 0; i < SIZEOFFREE; i++)	2000	for (int i = 0; i < SIZEOFFREE; i++)
2165	{
2166	if (!ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]))	2001	if (!ob->blocked (m, x + freearr_x[i], y + freearr_y[i]))
2167	return i;	2002	return i;
2168	}	2003
2169	return -1;	2004	return -1;
2170	}	2005	}
2171		2006
2172	/*	2007	/*
2173	* The function permute(arr, begin, end) randomly reorders the array	2008	* The function permute(arr, begin, end) randomly reorders the array
2174	* arr[begin..end-1].	2009	* arr[begin..end-1].
		2010	* now uses a fisher-yates shuffle, old permute was broken
2175	*/	2011	*/
2176	static void	2012	static void
2177	permute (int *arr, int begin, int end)	2013	permute (int *arr, int begin, int end)
2178	{	2014	{
2179	int	2015	arr += begin;
2180	i,
2181	j,
2182	tmp,
2183	len;
2184
2185	len = end - begin;	2016	end -= begin;
2186	for (i = begin; i < end; i++)
2187	{
2188	j = begin + RANDOM () % len;
2189		2017
2190	tmp = arr[i];	2018	while (--end)
2191	arr[i] = arr[j];	2019	swap (arr [end], arr [rndm (end + 1)]);
2192	arr[j] = tmp;
2193	}
2194	}	2020	}
2195		2021
2196	/* new function to make monster searching more efficient, and effective!	2022	/* new function to make monster searching more efficient, and effective!
2197	* This basically returns a randomized array (in the passed pointer) of	2023	* This basically returns a randomized array (in the passed pointer) of
2198	* the spaces to find monsters. In this way, it won't always look for	2024	* the spaces to find monsters. In this way, it won't always look for
…		…
2201	* the 3x3 area will be searched, just not in a predictable order.	2027	* the 3x3 area will be searched, just not in a predictable order.
2202	*/	2028	*/
2203	void	2029	void
2204	get_search_arr (int *search_arr)	2030	get_search_arr (int *search_arr)
2205	{	2031	{
2206	int	2032	int i;
2207	i;
2208		2033
2209	for (i = 0; i < SIZEOFFREE; i++)	2034	for (i = 0; i < SIZEOFFREE; i++)
2210	{
2211	search_arr[i] = i;	2035	search_arr[i] = i;
2212	}
2213		2036
2214	permute (search_arr, 1, SIZEOFFREE1 + 1);	2037	permute (search_arr, 1, SIZEOFFREE1 + 1);
2215	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);	2038	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);
2216	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);	2039	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);
2217	}	2040	}
…		…
2226	* Perhaps incorrectly, but I'm making the assumption that exclude	2049	* Perhaps incorrectly, but I'm making the assumption that exclude
2227	* is actually want is going to try and move there. We need this info	2050	* is actually want is going to try and move there. We need this info
2228	* because we have to know what movement the thing looking to move	2051	* because we have to know what movement the thing looking to move
2229	* there is capable of.	2052	* there is capable of.
2230	*/	2053	*/
2231
2232	int	2054	int
2233	find_dir (maptile *m, int x, int y, object *exclude)	2055	find_dir (maptile *m, int x, int y, object *exclude)
2234	{	2056	{
2235	int
2236	i,
2237	max = SIZEOFFREE, mflags;	2057	int i, max = SIZEOFFREE, mflags;
2238		2058
2239	sint16 nx, ny;	2059	sint16 nx, ny;
2240	object *	2060	object *tmp;
2241	tmp;
2242	maptile *	2061	maptile *mp;
2243	mp;
2244		2062
2245	MoveType blocked, move_type;	2063	MoveType blocked, move_type;
2246		2064
2247	if (exclude && exclude->head)	2065	if (exclude && exclude->head_ () != exclude)
2248	{	2066	{
2249	exclude = exclude->head;	2067	exclude = exclude->head;
2250	move_type = exclude->move_type;	2068	move_type = exclude->move_type;
2251	}	2069	}
2252	else	2070	else
…		…
2260	mp = m;	2078	mp = m;
2261	nx = x + freearr_x[i];	2079	nx = x + freearr_x[i];
2262	ny = y + freearr_y[i];	2080	ny = y + freearr_y[i];
2263		2081
2264	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);	2082	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);
		2083
2265	if (mflags & P_OUT_OF_MAP)	2084	if (mflags & P_OUT_OF_MAP)
2266	{
2267	max = maxfree[i];	2085	max = maxfree[i];
2268	}
2269	else	2086	else
2270	{	2087	{
2271	blocked = GET_MAP_MOVE_BLOCK (mp, nx, ny);	2088	mapspace &ms = mp->at (nx, ny);
		2089
		2090	blocked = ms.move_block;
2272		2091
2273	if ((move_type & blocked) == move_type)	2092	if ((move_type & blocked) == move_type)
2274	{
2275	max = maxfree[i];	2093	max = maxfree[i];
2276	}
2277	else if (mflags & P_IS_ALIVE)	2094	else if (mflags & P_IS_ALIVE)
2278	{	2095	{
2279	for (tmp = GET_MAP_OB (mp, nx, ny); tmp != NULL; tmp = tmp->above)	2096	for (tmp = ms.bot; tmp; tmp = tmp->above)
2280	{	2097	if ((tmp->flag [FLAG_MONSTER] || tmp->type == PLAYER)
2281	if ((QUERY_FLAG (tmp, FLAG_MONSTER) || tmp->type == PLAYER) && (tmp != exclude || (tmp->head && tmp->head != exclude)))	2098	&& (tmp != exclude || (tmp->head_ () != tmp && tmp->head_ () != exclude)))
2282	{
2283	break;	2099	break;
2284	}	2100
2285	}
2286	if (tmp)	2101	if (tmp)
2287	{
2288	return freedir[i];	2102	return freedir[i];
2289	}
2290	}	2103	}
2291	}	2104	}
2292	}	2105	}
		2106
2293	return 0;	2107	return 0;
2294	}	2108	}
2295		2109
2296	/*	2110	/*
2297	* distance(object 1, object 2) will return the square of the	2111	* distance(object 1, object 2) will return the square of the
2298	* distance between the two given objects.	2112	* distance between the two given objects.
2299	*/	2113	*/
2300
2301	int	2114	int
2302	distance (const object *ob1, const object *ob2)	2115	distance (const object *ob1, const object *ob2)
2303	{	2116	{
2304	int
2305	i;
2306
2307	i = (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);	2117	return (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);
2308	return i;
2309	}	2118	}
2310		2119
2311	/*	2120	/*
2312	* find_dir_2(delta-x,delta-y) will return a direction in which	2121	* find_dir_2(delta-x,delta-y) will return a direction in which
2313	* an object which has subtracted the x and y coordinates of another	2122	* an object which has subtracted the x and y coordinates of another
2314	* object, needs to travel toward it.	2123	* object, needs to travel toward it.
2315	*/	2124	*/
2316
2317	int	2125	int
2318	find_dir_2 (int x, int y)	2126	find_dir_2 (int x, int y)
2319	{	2127	{
2320	int	2128	int q;
2321	q;
2322		2129
2323	if (y)	2130	if (y)
2324	q = x * 100 / y;	2131	q = x * 100 / y;
2325	else if (x)	2132	else if (x)
2326	q = -300 * x;	2133	q = -300 * x;
…		…
2351		2158
2352	return 3;	2159	return 3;
2353	}	2160	}
2354		2161
2355	/*	2162	/*
2356	* absdir(int): Returns a number between 1 and 8, which represent
2357	* the "absolute" direction of a number (it actually takes care of
2358	* "overflow" in previous calculations of a direction).
2359	*/
2360
2361	int
2362	absdir (int d)
2363	{
2364	while (d < 1)
2365	d += 8;
2366	while (d > 8)
2367	d -= 8;
2368	return d;
2369	}
2370
2371	/*
2372	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is	2163	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is
2373	* between two directions (which are expected to be absolute (see absdir())	2164	* between two directions (which are expected to be absolute (see absdir())
2374	*/	2165	*/
2375
2376	int	2166	int
2377	dirdiff (int dir1, int dir2)	2167	dirdiff (int dir1, int dir2)
2378	{	2168	{
2379	int	2169	int d;
2380	d;
2381		2170
2382	d = abs (dir1 - dir2);	2171	d = abs (dir1 - dir2);
2383	if (d > 4)	2172	if (d > 4)
2384	d = 8 - d;	2173	d = 8 - d;
		2174
2385	return d;	2175	return d;
2386	}	2176	}
2387		2177
2388	/* peterm:	2178	/* peterm:
2389	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.	2179	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.
…		…
2392	* This basically means that if direction is 15, then it could either go	2182	* This basically means that if direction is 15, then it could either go
2393	* direction 4, 14, or 16 to get back to where we are.	2183	* direction 4, 14, or 16 to get back to where we are.
2394	* Moved from spell_util.c to object.c with the other related direction	2184	* Moved from spell_util.c to object.c with the other related direction
2395	* functions.	2185	* functions.
2396	*/	2186	*/
2397
2398	int
2399	reduction_dir[SIZEOFFREE][3] = {	2187	int reduction_dir[SIZEOFFREE][3] = {
2400	{0, 0, 0}, /* 0 */	2188	{0, 0, 0}, /* 0 */
2401	{0, 0, 0}, /* 1 */	2189	{0, 0, 0}, /* 1 */
2402	{0, 0, 0}, /* 2 */	2190	{0, 0, 0}, /* 2 */
2403	{0, 0, 0}, /* 3 */	2191	{0, 0, 0}, /* 3 */
2404	{0, 0, 0}, /* 4 */	2192	{0, 0, 0}, /* 4 */
…		…
2452	* find a path to that monster that we found. If not,	2240	* find a path to that monster that we found. If not,
2453	* we don't bother going toward it. Returns 1 if we	2241	* we don't bother going toward it. Returns 1 if we
2454	* can see a direct way to get it	2242	* can see a direct way to get it
2455	* Modified to be map tile aware -.MSW	2243	* Modified to be map tile aware -.MSW
2456	*/	2244	*/
2457
2458
2459	int	2245	int
2460	can_see_monsterP (maptile *m, int x, int y, int dir)	2246	can_see_monsterP (maptile *m, int x, int y, int dir)
2461	{	2247	{
2462	sint16 dx, dy;	2248	sint16 dx, dy;
2463	int
2464	mflags;	2249	int mflags;
2465		2250
2466	if (dir < 0)	2251	if (dir < 0)
2467	return 0; /* exit condition: invalid direction */	2252	return 0; /* exit condition: invalid direction */
2468		2253
2469	dx = x + freearr_x[dir];	2254	dx = x + freearr_x[dir];
…		…
2482	return 0;	2267	return 0;
2483		2268
2484	/* yes, can see. */	2269	/* yes, can see. */
2485	if (dir < 9)	2270	if (dir < 9)
2486	return 1;	2271	return 1;
		2272
2487	return can_see_monsterP (m, x, y, reduction_dir[dir][0]) |	2273	return can_see_monsterP (m, x, y, reduction_dir[dir][0])
2488	can_see_monsterP (m, x, y, reduction_dir[dir][1]) | can_see_monsterP (m, x, y, reduction_dir[dir][2]);	2274	| can_see_monsterP (m, x, y, reduction_dir[dir][1])
		2275	| can_see_monsterP (m, x, y, reduction_dir[dir][2]);
2489	}	2276	}
2490
2491
2492		2277
2493	/*	2278	/*
2494	* can_pick(picker, item): finds out if an object is possible to be	2279	* can_pick(picker, item): finds out if an object is possible to be
2495	* picked up by the picker. Returnes 1 if it can be	2280	* picked up by the picker. Returnes 1 if it can be
2496	* picked up, otherwise 0.	2281	* picked up, otherwise 0.
…		…
2498	* Cf 0.91.3 - don't let WIZ's pick up anything - will likely cause	2283	* Cf 0.91.3 - don't let WIZ's pick up anything - will likely cause
2499	* core dumps if they do.	2284	* core dumps if they do.
2500	*	2285	*
2501	* Add a check so we can't pick up invisible objects (0.93.8)	2286	* Add a check so we can't pick up invisible objects (0.93.8)
2502	*/	2287	*/
2503
2504	int	2288	int
2505	can_pick (const object *who, const object *item)	2289	can_pick (const object *who, const object *item)
2506	{	2290	{
2507	return /*QUERY_FLAG(who,FLAG_WIZ)|| */	2291	return /*QUERY_FLAG(who,FLAG_WIZ)|| */
2508	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&	2292	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&
2509	!QUERY_FLAG (item, FLAG_ALIVE) && !item->invisible && (who->type == PLAYER || item->weight < who->weight / 3));	2293	!QUERY_FLAG (item, FLAG_ALIVE) && !item->invisible && (who->type == PLAYER || item->weight < who->weight / 3));
2510	}	2294	}
2511		2295
2512
2513	/*	2296	/*
2514	* create clone from object to another	2297	* create clone from object to another
2515	*/	2298	*/
2516	object *	2299	object *
2517	object_create_clone (object *asrc)	2300	object::deep_clone ()
2518	{	2301	{
2519	object *dst = 0, *tmp, *src, *part, *prev, *item;	2302	assert (("deep_clone called on non-head object", is_head ()));
2520		2303
2521	if (!asrc)	2304	object *dst = clone ();
2522	return 0;
2523		2305
2524	src = asrc;	2306	object *prev = dst;
2525	if (src->head)
2526	src = src->head;
2527
2528	prev = 0;
2529	for (part = src; part; part = part->more)	2307	for (object *part = this->more; part; part = part->more)
2530	{	2308	{
2531	tmp = part->clone ();	2309	object *tmp = part->clone ();
2532	tmp->x -= src->x;
2533	tmp->y -= src->y;
2534
2535	if (!part->head)
2536	{
2537	dst = tmp;
2538	tmp->head = 0;
2539	}
2540	else
2541	{
2542	tmp->head = dst;	2310	tmp->head = dst;
2543	}
2544
2545	tmp->more = 0;
2546
2547	if (prev)
2548	prev->more = tmp;	2311	prev->more = tmp;
2549
2550	prev = tmp;	2312	prev = tmp;
2551	}	2313	}
2552		2314
2553	for (item = src->inv; item; item = item->below)	2315	for (object *item = inv; item; item = item->below)
2554	insert_ob_in_ob (object_create_clone (item), dst);	2316	insert_ob_in_ob (item->deep_clone (), dst);
2555		2317
2556	return dst;	2318	return dst;
2557	}
2558
2559	/* GROS - Creates an object using a string representing its content. */
2560	/* Basically, we save the content of the string to a temp file, then call */
2561	/* load_object on it. I admit it is a highly inefficient way to make things, */
2562	/* but it was simple to make and allows reusing the load_object function. */
2563	/* Remember not to use load_object_str in a time-critical situation. */
2564	/* Also remember that multiparts objects are not supported for now. */
2565
2566	object *
2567	load_object_str (const char *obstr)
2568	{
2569	object *op;
2570	char filename[MAX_BUF];
2571
2572	sprintf (filename, "%s/cfloadobstr2044", settings.tmpdir);
2573
2574	FILE *tempfile = fopen (filename, "w");
2575
2576	if (tempfile == NULL)
2577	{
2578	LOG (llevError, "Error - Unable to access load object temp file\n");
2579	return NULL;
2580	}
2581
2582	fprintf (tempfile, obstr);
2583	fclose (tempfile);
2584
2585	op = object::create ();
2586
2587	object_thawer thawer (filename);
2588
2589	if (thawer)
2590	load_object (thawer, op, 0);
2591
2592	LOG (llevDebug, " load str completed, object=%s\n", &op->name);
2593	CLEAR_FLAG (op, FLAG_REMOVED);
2594
2595	return op;
2596	}	2319	}
2597		2320
2598	/* This returns the first object in who's inventory that	2321	/* This returns the first object in who's inventory that
2599	* has the same type and subtype match.	2322	* has the same type and subtype match.
2600	* returns NULL if no match.	2323	* returns NULL if no match.
2601	*/	2324	*/
2602	object *	2325	object *
2603	find_obj_by_type_subtype (const object *who, int type, int subtype)	2326	find_obj_by_type_subtype (const object *who, int type, int subtype)
2604	{	2327	{
2605	object *tmp;
2606
2607	for (tmp = who->inv; tmp; tmp = tmp->below)	2328	for (object *tmp = who->inv; tmp; tmp = tmp->below)
2608	if (tmp->type == type && tmp->subtype == subtype)	2329	if (tmp->type == type && tmp->subtype == subtype)
2609	return tmp;	2330	return tmp;
2610		2331
2611	return NULL;
2612	}
2613
2614	/* If ob has a field named key, return the link from the list,
2615	* otherwise return NULL.
2616	*
2617	* key must be a passed in shared string - otherwise, this won't
2618	* do the desired thing.
2619	*/
2620	key_value *
2621	get_ob_key_link (const object *ob, const char *key)
2622	{
2623	key_value *link;
2624
2625	for (link = ob->key_values; link != NULL; link = link->next)
2626	if (link->key == key)
2627	return link;
2628
2629	return NULL;
2630	}
2631
2632	/*
2633	* Returns the value of op has an extra_field for key, or NULL.
2634	*
2635	* The argument doesn't need to be a shared string.
2636	*
2637	* The returned string is shared.
2638	*/
2639	const char *
2640	get_ob_key_value (const object *op, const char *const key)
2641	{
2642	key_value *link;
2643	shstr_cmp canonical_key (key);
2644
2645	if (!canonical_key)
2646	{
2647	/* 1. There being a field named key on any object
2648	* implies there'd be a shared string to find.
2649	* 2. Since there isn't, no object has this field.
2650	* 3. Therefore, *this* object doesn't have this field.
2651	*/
2652	return 0;
2653	}
2654
2655	/* This is copied from get_ob_key_link() above -
2656	* only 4 lines, and saves the function call overhead.
2657	*/
2658	for (link = op->key_values; link; link = link->next)
2659	if (link->key == canonical_key)
2660	return link->value;
2661
2662	return 0;	2332	return 0;
2663	}	2333	}
2664		2334
2665		2335	const shstr &
2666	/*	2336	object::kv_get (const shstr &key) const
2667	* Updates the canonical_key in op to value.
2668	*
2669	* canonical_key is a shared string (value doesn't have to be).
2670	*
2671	* Unless add_key is TRUE, it won't add fields, only change the value of existing
2672	* keys.
2673	*
2674	* Returns TRUE on success.
2675	*/
2676	int
2677	set_ob_key_value_s (object *op, const shstr & canonical_key, const char *value, int add_key)
2678	{	2337	{
2679	key_value *	2338	for (key_value *kv = key_values; kv; kv = kv->next)
2680	field = NULL, *last = NULL;	2339	if (kv->key == key)
		2340	return kv->value;
2681		2341
2682	for (field = op->key_values; field != NULL; field = field->next)	2342	return shstr_null;
2683	{	2343	}
2684	if (field->key != canonical_key)	2344
		2345	void
		2346	object::kv_set (const shstr &key, const shstr &value)
		2347	{
		2348	for (key_value *kv = key_values; kv; kv = kv->next)
		2349	if (kv->key == key)
2685	{	2350	{
2686	last = field;	2351	kv->value = value;
2687	continue;	2352	return;
2688	}	2353	}
2689		2354
2690	if (value)	2355	key_value *kv = new key_value;
2691	field->value = value;	2356
2692	else	2357	kv->next = key_values;
		2358	kv->key = key;
		2359	kv->value = value;
		2360
		2361	key_values = kv;
		2362	}
		2363
		2364	void
		2365	object::kv_del (const shstr &key)
		2366	{
		2367	for (key_value **kvp = &key_values; *kvp; kvp = &(*kvp)->next)
		2368	if ((*kvp)->key == key)
2693	{	2369	{
2694	/* Basically, if the archetype has this key set,	2370	key_value *kv = *kvp;
2695	* we need to store the null value so when we save	2371	*kvp = (*kvp)->next;
2696	* it, we save the empty value so that when we load,	2372	delete kv;
2697	* we get this value back again.	2373	return;
2698	*/
2699	if (get_ob_key_link (&op->arch->clone, canonical_key))
2700	field->value = 0;
2701	else
2702	{
2703	if (last)
2704	last->next = field->next;
2705	else
2706	op->key_values = field->next;
2707
2708	delete field;
2709	}
2710	}	2374	}
2711	return TRUE;
2712	}
2713	/* IF we get here, key doesn't exist */
2714
2715	/* No field, we'll have to add it. */
2716
2717	if (!add_key)
2718	{
2719	return FALSE;
2720	}
2721	/* There isn't any good reason to store a null
2722	* value in the key/value list. If the archetype has
2723	* this key, then we should also have it, so shouldn't
2724	* be here. If user wants to store empty strings,
2725	* should pass in ""
2726	*/
2727	if (value == NULL)
2728	return TRUE;
2729
2730	field = new key_value;
2731
2732	field->key = canonical_key;
2733	field->value = value;
2734	/* Usual prepend-addition. */
2735	field->next = op->key_values;
2736	op->key_values = field;
2737
2738	return TRUE;
2739	}
2740
2741	/*
2742	* Updates the key in op to value.
2743	*
2744	* If add_key is FALSE, this will only update existing keys,
2745	* and not add new ones.
2746	* In general, should be little reason FALSE is ever passed in for add_key
2747	*
2748	* Returns TRUE on success.
2749	*/
2750	int
2751	set_ob_key_value (object *op, const char *key, const char *value, int add_key)
2752	{
2753	shstr key_ (key);
2754
2755	return set_ob_key_value_s (op, key_, value, add_key);
2756	}	2375	}
2757		2376
2758	object::depth_iterator::depth_iterator (object *container)	2377	object::depth_iterator::depth_iterator (object *container)
2759	: iterator_base (container)	2378	: iterator_base (container)
2760	{	2379	{
…		…
2774	}	2393	}
2775	else	2394	else
2776	item = item->env;	2395	item = item->env;
2777	}	2396	}
2778		2397
		2398	const char *
		2399	object::flag_desc (char *desc, int len) const
		2400	{
		2401	char *p = desc;
		2402	bool first = true;
		2403
		2404	*p = 0;
		2405
		2406	for (int i = 0; i < NUM_FLAGS; i++)
		2407	{
		2408	if (len <= 10) // magic constant!
		2409	{
		2410	snprintf (p, len, ",...");
		2411	break;
		2412	}
		2413
		2414	if (flag [i])
		2415	{
		2416	int cnt = snprintf (p, len, "%s%d", first ? "" : ",", i);
		2417	len -= cnt;
		2418	p += cnt;
		2419	first = false;
		2420	}
		2421	}
		2422
		2423	return desc;
		2424	}
		2425
2779	// return a suitable string describing an objetc in enough detail to find it	2426	// return a suitable string describing an object in enough detail to find it
2780	const char *	2427	const char *
2781	object::debug_desc (char *info) const	2428	object::debug_desc (char *info) const
2782	{	2429	{
		2430	char flagdesc[512];
2783	char info2[256 * 3];	2431	char info2[256 * 4];
2784	char *p = info;	2432	char *p = info;
2785		2433
2786	p += snprintf (p, 256, "%d=\"%s%s%s\"",	2434	p += snprintf (p, 512, "{cnt:%d,uuid:%s,name:\"%s\"%s%s%s,flags:[%s],type:%d}",
2787	count,	2435	count,
		2436	uuid.c_str (),
2788	&name,	2437	&name,
2789	title ? " " : "",	2438	title ? ",title:\"" : "",
2790	title ? (const char *)title : "");	2439	title ? (const char *)title : "",
		2440	title ? "\"" : "",
		2441	flag_desc (flagdesc, 512), type);
2791		2442
2792	if (env)	2443	if (!flag[FLAG_REMOVED] && env)
2793	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));	2444	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));
2794		2445
2795	if (map)	2446	if (map)
2796	p += snprintf (p, 256, "(on %s@%d+%d)", map->path, x, y);	2447	p += snprintf (p, 256, "(on %s@%d+%d)", &map->path, x, y);
2797		2448
2798	return info;	2449	return info;
2799	}	2450	}
2800		2451
2801	const char *	2452	const char *
2802	object::debug_desc () const	2453	object::debug_desc () const
2803	{	2454	{
2804	static char info[256 * 3];	2455	static char info[3][256 * 4];
		2456	static int info_idx;
		2457
2805	return debug_desc (info);	2458	return debug_desc (info [++info_idx % 3]);
2806	}	2459	}
2807		2460
		2461	struct region *
		2462	object::region () const
		2463	{
		2464	return map ? map->region (x, y)
		2465	: region::default_region ();
		2466	}
		2467
		2468	const materialtype_t *
		2469	object::dominant_material () const
		2470	{
		2471	if (materialtype_t *mt = name_to_material (materialname))
		2472	return mt;
		2473
		2474	return name_to_material (shstr_unknown);
		2475	}
		2476
		2477	void
		2478	object::open_container (object *new_container)
		2479	{
		2480	if (container == new_container)
		2481	return;
		2482
		2483	object *old_container = container;
		2484
		2485	if (old_container)
		2486	{
		2487	if (INVOKE_OBJECT (CLOSE, old_container, ARG_OBJECT (this)))
		2488	return;
		2489
		2490	#if 0
		2491	// remove the "Close old_container" object.
		2492	if (object *closer = old_container->inv)
		2493	if (closer->type == CLOSE_CON)
		2494	closer->destroy ();
		2495	#endif
		2496
		2497	// make sure the container is available
		2498	esrv_send_item (this, old_container);
		2499
		2500	old_container->flag [FLAG_APPLIED] = false;
		2501	container = 0;
		2502
		2503	// client needs item update to make it work, client bug requires this to be separate
		2504	esrv_update_item (UPD_FLAGS, this, old_container);
		2505
		2506	new_draw_info_format (NDI_UNIQUE, 0, this, "You close %s.", query_name (old_container));
		2507	play_sound (sound_find ("chest_close"));
		2508	}
		2509
		2510	if (new_container)
		2511	{
		2512	if (INVOKE_OBJECT (OPEN, new_container, ARG_OBJECT (this)))
		2513	return;
		2514
		2515	// TODO: this does not seem to serve any purpose anymore?
		2516	#if 0
		2517	// insert the "Close Container" object.
		2518	if (archetype *closer = new_container->other_arch)
		2519	{
		2520	object *closer = arch_to_object (new_container->other_arch);
		2521	closer->flag [FLAG_NO_MAP_SAVE] = 1;
		2522	new_container->insert (closer);
		2523	}
		2524	#endif
		2525
		2526	new_draw_info_format (NDI_UNIQUE, 0, this, "You open %s.", query_name (new_container));
		2527
		2528	// make sure the container is available, client bug requires this to be separate
		2529	esrv_send_item (this, new_container);
		2530
		2531	new_container->flag [FLAG_APPLIED] = true;
		2532	container = new_container;
		2533
		2534	// client needs flag change
		2535	esrv_update_item (UPD_FLAGS, this, new_container);
		2536	esrv_send_inventory (this, new_container);
		2537	play_sound (sound_find ("chest_open"));
		2538	}
		2539	// else if (!old_container->env && contr && contr->ns)
		2540	// contr->ns->floorbox_reset ();
		2541	}
		2542
		2543	object *
		2544	object::force_find (const shstr name)
		2545	{
		2546	/* cycle through his inventory to look for the MARK we want to
		2547	* place
		2548	*/
		2549	for (object *tmp = inv; tmp; tmp = tmp->below)
		2550	if (tmp->type == FORCE && tmp->slaying == name)
		2551	return splay (tmp);
		2552
		2553	return 0;
		2554	}
		2555
		2556	object *
		2557	object::force_add (const shstr name, int duration)
		2558	{
		2559	if (object *force = force_find (name))
		2560	force->destroy ();
		2561
		2562	object *force = get_archetype (FORCE_NAME);
		2563
		2564	force->slaying = name;
		2565	force->stats.food = 1;
		2566	force->speed_left = -1.f;
		2567
		2568	force->set_speed (duration ? 1.f / duration : 0.f);
		2569	force->flag [FLAG_IS_USED_UP] = true;
		2570	force->flag [FLAG_APPLIED] = true;
		2571
		2572	return insert (force);
		2573	}
		2574
		2575	void
		2576	object::play_sound (faceidx sound)
		2577	{
		2578	if (!sound)
		2579	return;
		2580
		2581	if (flag [FLAG_REMOVED])
		2582	return;
		2583
		2584	if (env)
		2585	{
		2586	if (object *pl = in_player ())
		2587	pl->contr->play_sound (sound);
		2588	}
		2589	else
		2590	map->play_sound (sound, x, y);
		2591	}
		2592
		2593	void
		2594	object::make_noise ()
		2595	{
		2596	// we do not model noise in the map, so instead put
		2597	// a temporary light into the noise source
		2598	// could use the map instead, but that's less reliable for our
		2599	// goal, which is to make invisibility a bit harder to exploit
		2600
		2601	// currently only works sensibly for players
		2602	if (!is_player ())
		2603	return;
		2604
		2605	// find old force, or create new one
		2606	object *force = force_find (shstr_noise_force);
		2607
		2608	if (force)
		2609	force->speed = 1.f / 4; // patch old speed up
		2610	else
		2611	force_add (shstr_noise_force, 4);
		2612	}
		2613

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