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Comparing deliantra/server/common/object.C (file contents):
Revision 1.53 by root, Tue Nov 7 16:30:54 2006 UTC vs.
Revision 1.242 by elmex, Wed May 7 21:00:02 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;
108	write_uuid ();
109	LOG (llevDebug, "read UID: %lld\n", uid);	111	LOG (llevDebug, "read UUID: %s\n", UUID::cur.c_str ());
		112
		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. First part checks
		192	* for unsigned overflow (2c), second part checks whether the result
		193	* would fit into a 32 bit signed int, which is often used to hold
		194	* nrof values.
		195	*/
		196	if (~ob1->nrof < ob2->nrof || ob1->nrof + ob2->nrof > (1UL << 31))
201	return 0;	197	return 0;
202		198
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.	199	/* 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	200	* 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	201	* 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	202	* are not equal - just if it has been identified, the been_applied
214	* flags lose any meaning.	203	* flags lose any meaning.
215	*/	204	*/
216	if (QUERY_FLAG (ob1, FLAG_IDENTIFIED))	205	if (QUERY_FLAG (ob1, FLAG_IDENTIFIED))
217	SET_FLAG (ob1, FLAG_BEEN_APPLIED);	206	SET_FLAG (ob1, FLAG_BEEN_APPLIED);
218		207
219	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))	208	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))
220	SET_FLAG (ob2, FLAG_BEEN_APPLIED);	209	SET_FLAG (ob2, FLAG_BEEN_APPLIED);
221		210
222		211	if (ob1->arch->name != ob2->arch->name
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) ||	212	|| ob1->name != ob2->name
233	(ob1->title != ob2->title) ||	213	|| ob1->title != ob2->title
234	(ob1->msg != ob2->msg) ||	214	|| ob1->msg != ob2->msg
235	(ob1->weight != ob2->weight) ||	215	|| 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) ||	216	|| ob1->attacktype != ob2->attacktype
239	(ob1->magic != ob2->magic) ||	217	|| ob1->magic != ob2->magic
240	(ob1->slaying != ob2->slaying) ||	218	|| ob1->slaying != ob2->slaying
241	(ob1->skill != ob2->skill) ||	219	|| ob1->skill != ob2->skill
242	(ob1->value != ob2->value) ||	220	|| ob1->value != ob2->value
243	(ob1->animation_id != ob2->animation_id) ||	221	|| ob1->animation_id != ob2->animation_id
244	(ob1->client_type != ob2->client_type) ||	222	|| ob1->client_type != ob2->client_type
245	(ob1->materialname != ob2->materialname) ||	223	|| ob1->materialname != ob2->materialname
246	(ob1->lore != ob2->lore) ||	224	|| ob1->lore != ob2->lore
247	(ob1->subtype != ob2->subtype) ||	225	|| ob1->subtype != ob2->subtype
248	(ob1->move_type != ob2->move_type) ||	226	|| ob1->move_type != ob2->move_type
249	(ob1->move_block != ob2->move_block) ||	227	|| ob1->move_block != ob2->move_block
250	(ob1->move_allow != ob2->move_allow) ||	228	|| ob1->move_allow != ob2->move_allow
251	(ob1->move_on != ob2->move_on) ||	229	|| 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))	230	|| ob1->move_off != ob2->move_off
		231	|| ob1->move_slow != ob2->move_slow
		232	|| ob1->move_slow_penalty != ob2->move_slow_penalty
		233	|| memcmp (&ob1->resist, &ob2->resist, sizeof (ob1->resist))
		234	|| memcmp (&ob1->stats , &ob2->stats , sizeof (ob1->stats)))
253	return 0;	235	return 0;
254		236
		237	if ((ob1->flag ^ ob2->flag)
		238	.reset (FLAG_INV_LOCKED)
		239	.reset (FLAG_CLIENT_SENT)
		240	.reset (FLAG_REMOVED)
		241	.any ())
		242	return 0;
		243
255	/* This is really a spellbook check - really, we should	244	/* This is really a spellbook check - we should in general
256	* check all objects in the inventory.	245	* not merge objects with real inventories, as splitting them
		246	* is hard.
257	*/	247	*/
258	if (ob1->inv || ob2->inv)	248	if (ob1->inv || ob2->inv)
259	{	249	{
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))	250	if (!(ob1->inv && ob2->inv))
266	return 0;	251	return 0; /* inventories differ in length */
		252
		253	if (ob1->inv->below || ob2->inv->below)
		254	return 0; /* more than one object in inv */
		255
		256	if (!object::can_merge (ob1->inv, ob2->inv))
		257	return 0; /* inventory objects differ */
267		258
268	/* inventory ok - still need to check rest of this object to see	259	/* inventory ok - still need to check rest of this object to see
269	* if it is valid.	260	* if it is valid.
270	*/	261	*/
271	}	262	}
…		…
279		270
280	/* Note sure why the following is the case - either the object has to	271	/* 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	272	* be animated or have a very low speed. Is this an attempted monster
282	* check?	273	* check?
283	*/	274	*/
284	if (!QUERY_FLAG (ob1, FLAG_ANIMATE) && FABS ((ob1)->speed) > MIN_ACTIVE_SPEED)	275	if (!QUERY_FLAG (ob1, FLAG_ANIMATE) && ob1->has_active_speed ())
285	return 0;	276	return 0;
286		277
287	switch (ob1->type)	278	switch (ob1->type)
288	{	279	{
289	case SCROLL:	280	case SCROLL:
290	if (ob1->level != ob2->level)	281	if (ob1->level != ob2->level)
291	return 0;	282	return 0;
292	break;	283	break;
293	}	284	}
294		285
295	if (ob1->key_values != NULL || ob2->key_values != NULL)	286	if (ob1->key_values || ob2->key_values)
296	{	287	{
297	/* At least one of these has key_values. */	288	/* At least one of these has key_values. */
298	if ((ob1->key_values == NULL) != (ob2->key_values == NULL))	289	if ((!ob1->key_values) != (!ob2->key_values))
299	/* One has fields, but the other one doesn't. */	290	return 0; /* One has fields, but the other one doesn't. */
		291
		292	if (!compare_ob_value_lists (ob1, ob2))
300	return 0;	293	return 0;
301	else if (!compare_ob_value_lists (ob1, ob2))
302	return 0;
303	}	294	}
304		295
305	//TODO: generate an event or call into perl for additional checks
306	if (ob1->self || ob2->self)	296	if (ob1->self || ob2->self)
307	{	297	{
308	ob1->optimise ();	298	ob1->optimise ();
309	ob2->optimise ();	299	ob2->optimise ();
310		300
311	if (ob1->self || ob2->self)	301	if (ob1->self || ob2->self)
		302	{
		303	int k1 = ob1->self ? HvTOTALKEYS (ob1->self) : 0;
		304	int k2 = ob2->self ? HvTOTALKEYS (ob2->self) : 0;
		305
		306	if (k1 != k2)
312	return 0;	307	return 0;
		308
		309	if (k1 == 0)
		310	return 1;
		311
		312	if (!cfperl_can_merge (ob1, ob2))
		313	return 0;
		314	}
313	}	315	}
314		316
315	/* Everything passes, must be OK. */	317	/* Everything passes, must be OK. */
316	return 1;	318	return 1;
317	}	319	}
318		320
		321	// find player who can see this object
		322	object *
		323	object::visible_to () const
		324	{
		325	if (client_visible () && !flag [FLAG_REMOVED])
		326	{
		327	// see if we are in a container of sorts
		328	if (env)
		329	{
		330	// the player inventory itself is always visible
		331	if (env->type == PLAYER)
		332	return env;
		333
		334	// else a player could have our env open
		335	object *envest = env->outer_env ();
		336
		337	// the player itself is always on a map, so we will find him here
		338	// even if our inv is in a player.
		339	if (envest->is_on_map ())
		340	if (object *pl = envest->ms ().player ())
		341	if (pl->container == env)
		342	return pl;
		343	}
		344	else
		345	{
		346	// maybe there is a player standing on the same mapspace
		347	// this will catch the case where "this" is a player
		348	if (object *pl = ms ().player ())
		349	if (!pl->container || this == pl->container)
		350	return pl;
		351	}
		352	}
		353
		354	return 0;
		355	}
		356
		357	// adjust weight per container type ("of holding")
		358	static sint32
		359	weight_adjust_for (object *op, sint32 weight)
		360	{
		361	return op->type == CONTAINER
		362	? lerp (weight, 0, 100, 0, 100 - op->stats.Str)
		363	: weight;
		364	}
		365
319	/*	366	/*
		367	* adjust_weight(object, weight) adds the specified weight to an object,
		368	* and also updates how much the environment(s) is/are carrying.
		369	*/
		370	static void
		371	adjust_weight (object *op, sint32 weight)
		372	{
		373	while (op)
		374	{
		375	// adjust by actual difference to account for rounding errors
		376	// i.e. (w2 - w1) / f != w2 / f - w1 / f and the latter is correct
		377	weight = weight_adjust_for (op, op->carrying)
		378	- weight_adjust_for (op, op->carrying - weight);
		379
		380	if (!weight)
		381	return;
		382
		383	op->carrying += weight;
		384
		385	if (object *pl = op->visible_to ())
		386	if (pl != op) // player is handled lazily
		387	esrv_update_item (UPD_WEIGHT, pl, op);
		388
		389	op = op->env;
		390	}
		391	}
		392
		393	/*
320	* sum_weight() is a recursive function which calculates the weight	394	* this is a recursive function which calculates the weight
321	* an object is carrying. It goes through in figures out how much	395	* an object is carrying. It goes through op and figures out how much
322	* containers are carrying, and sums it up.	396	* containers are carrying, and sums it up.
323	*/	397	*/
324	long	398	void
325	sum_weight (object *op)	399	object::update_weight ()
326	{	400	{
327	long sum;	401	sint32 sum = 0;
328	object *inv;
329		402
330	for (sum = 0, inv = op->inv; inv != NULL; inv = inv->below)	403	for (object *op = inv; op; op = op->below)
331	{	404	{
332	if (inv->inv)	405	if (op->inv)
333	sum_weight (inv);	406	op->update_weight ();
334	sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1);	407
		408	sum += op->total_weight ();
		409	}
		410
		411	sum = weight_adjust_for (this, sum);
		412
		413	if (sum != carrying)
335	}	414	{
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;	415	carrying = sum;
342		416
343	return sum;	417	if (object *pl = visible_to ())
		418	if (pl != this) // player is handled lazily
		419	esrv_update_item (UPD_WEIGHT, pl, this);
		420	}
344	}	421	}
345		422
346	/**	423	/*
347	* Return the outermost environment object for a given object.	424	* Used by: Server DM commands: dumpbelow, dump. Some error messages.
348	*/	425	*/
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 *	426	char *
380	dump_object (object *op)	427	dump_object (object *op)
381	{	428	{
382	if (!op)	429	if (!op)
383	return strdup ("[NULLOBJ]");	430	return strdup ("[NULLOBJ]");
384		431
385	object_freezer freezer;	432	object_freezer freezer;
386	save_object (freezer, op, 3);	433	op->write (freezer);
387	return freezer.as_string ();	434	return freezer.as_string ();
388	}	435	}
389		436
390	/*	437	/*
391	* get_nearest_part(multi-object, object 2) returns the part of the	438	* get_nearest_part(multi-object, object 2) returns the part of the
392	* multi-object 1 which is closest to the second object.	439	* multi-object 1 which is closest to the second object.
393	* If it's not a multi-object, it is returned.	440	* If it's not a multi-object, it is returned.
394	*/	441	*/
395
396	object *	442	object *
397	get_nearest_part (object *op, const object *pl)	443	get_nearest_part (object *op, const object *pl)
398	{	444	{
399	object *tmp, *closest;	445	object *tmp, *closest;
400	int last_dist, i;	446	int last_dist, i;
401		447
402	if (op->more == NULL)	448	if (!op->more)
403	return op;	449	return op;
		450
404	for (last_dist = distance (op, pl), closest = op, tmp = op->more; tmp != NULL; tmp = tmp->more)	451	for (last_dist = distance (op, pl), closest = op, tmp = op->more;
		452	tmp;
		453	tmp = tmp->more)
405	if ((i = distance (tmp, pl)) < last_dist)	454	if ((i = distance (tmp, pl)) < last_dist)
406	closest = tmp, last_dist = i;	455	closest = tmp, last_dist = i;
		456
407	return closest;	457	return closest;
408	}	458	}
409		459
410	/*	460	/*
411	* Returns the object which has the count-variable equal to the argument.	461	* Returns the object which has the count-variable equal to the argument.
		462	* VERRRY slow.
412	*/	463	*/
413
414	object *	464	object *
415	find_object (tag_t i)	465	find_object (tag_t i)
416	{	466	{
417	object *op;	467	for_all_objects (op)
418
419	for (op = object::first; op != NULL; op = op->next)
420	if (op->count == i)	468	if (op->count == i)
421	break;
422
423	return op;	469	return op;
		470
		471	return 0;
424	}	472	}
425		473
426	/*	474	/*
427	* Returns the first object which has a name equal to the argument.	475	* Returns the first object which has a name equal to the argument.
428	* Used only by the patch command, but not all that useful.	476	* Used only by the patch command, but not all that useful.
429	* Enables features like "patch <name-of-other-player> food 999"	477	* Enables features like "patch <name-of-other-player> food 999"
430	*/	478	*/
431
432	object *	479	object *
433	find_object_name (const char *str)	480	find_object_name (const char *str)
434	{	481	{
435	shstr_cmp str_ (str);	482	shstr_cmp str_ (str);
436	object *op;	483	object *op;
437		484
438	for (op = object::first; op != NULL; op = op->next)	485	for_all_objects (op)
439	if (op->name == str_)	486	if (op->name == str_)
440	break;	487	break;
441		488
442	return op;	489	return op;
443	}	490	}
444		491
445	void
446	free_all_object_data ()
447	{
448	LOG (llevDebug, "%d allocated objects\n", nrofallocobjects);
449	}
450
451	/*	492	/*
452	* Sets the owner and sets the skill and exp pointers to owner's current	493	* Sets the owner and sets the skill and exp pointers to owner's current
453	* skill and experience objects.	494	* skill and experience objects.
		495	* ACTUALLY NO! investigate! TODO
454	*/	496	*/
455	void	497	void
456	object::set_owner (object *owner)	498	object::set_owner (object *owner)
457	{	499	{
		500	// allow objects which own objects
458	if (!owner)	501	if (owner)
459	return;
460
461	/* next line added to allow objects which own objects */
462	/* Add a check for ownercounts in here, as I got into an endless loop
463	* with the fireball owning a poison cloud which then owned the
464	* fireball. I believe that was caused by one of the objects getting
465	* freed and then another object replacing it. Since the ownercounts
466	* didn't match, this check is valid and I believe that cause is valid.
467	*/
468	while (owner->owner)	502	while (owner->owner)
469	owner = owner->owner;	503	owner = owner->owner;
		504
		505	if (flag [FLAG_FREED])
		506	{
		507	LOG (llevError | logBacktrace, "tried to set owner of %s to %s\n", debug_desc (), owner->debug_desc ());
		508	return;
		509	}
470		510
471	this->owner = owner;	511	this->owner = owner;
		512	}
		513
		514	int
		515	object::slottype () const
		516	{
		517	if (type == SKILL)
		518	{
		519	if (IS_COMBAT_SKILL (subtype)) return slot_combat;
		520	if (IS_RANGED_SKILL (subtype)) return slot_ranged;
		521	}
		522	else
		523	{
		524	if (slot [body_combat].info) return slot_combat;
		525	if (slot [body_range ].info) return slot_ranged;
		526	}
		527
		528	return slot_none;
		529	}
		530
		531	bool
		532	object::change_weapon (object *ob)
		533	{
		534	if (current_weapon == ob)
		535	return true;
		536
		537	if (chosen_skill)
		538	chosen_skill->flag [FLAG_APPLIED] = false;
		539
		540	current_weapon = ob;
		541	chosen_skill = !ob || ob->type == SKILL ? ob : find_skill_by_name (this, ob->skill);
		542
		543	if (chosen_skill)
		544	chosen_skill->flag [FLAG_APPLIED] = true;
		545
		546	update_stats ();
		547
		548	if (ob)
		549	{
		550	// now check wether any body locations became invalid, in which case
		551	// we cannot apply the weapon at the moment.
		552	for (int i = 0; i < NUM_BODY_LOCATIONS; ++i)
		553	if (slot[i].used < 0)
		554	{
		555	current_weapon = chosen_skill = 0;
		556	update_stats ();
		557
		558	new_draw_info_format (NDI_UNIQUE, 0, this,
		559	"You try to balance all your items at once, "
		560	"but the %s is just too much for your body. "
		561	"[You need to unapply some items first.]", &ob->name);
		562	return false;
		563	}
		564
		565	//new_draw_info_format (NDI_UNIQUE, 0, this, "You switch to your %s.", &ob->name);
		566	}
		567	else
		568	;//new_draw_info_format (NDI_UNIQUE, 0, this, "You unwield your weapons.");
		569
		570	if (ob && !ob->flag [FLAG_APPLIED] && ob->type != SPELL)
		571	{
		572	LOG (llevError | logBacktrace, "%s changed to unapplied weapon %s",
		573	&name, ob->debug_desc ());
		574	return false;
		575	}
		576
		577	return true;
472	}	578	}
473		579
474	/* Zero the key_values on op, decrementing the shared-string	580	/* Zero the key_values on op, decrementing the shared-string
475	* refcounts and freeing the links.	581	* refcounts and freeing the links.
476	*/	582	*/
477	static void	583	static void
478	free_key_values (object *op)	584	free_key_values (object *op)
479	{	585	{
480	for (key_value *i = op->key_values; i != 0;)	586	for (key_value *i = op->key_values; i; )
481	{	587	{
482	key_value *next = i->next;	588	key_value *next = i->next;
483	delete i;	589	delete i;
484		590
485	i = next;	591	i = next;
486	}	592	}
487		593
488	op->key_values = 0;	594	op->key_values = 0;
489	}	595	}
490		596
491	void object::clear ()
492	{
493	attachable_base::clear ();
494
495	free_key_values (this);
496
497	owner = 0;
498	name = 0;
499	name_pl = 0;
500	title = 0;
501	race = 0;
502	slaying = 0;
503	skill = 0;
504	msg = 0;
505	lore = 0;
506	custom_name = 0;
507	materialname = 0;
508	contr = 0;
509	below = 0;
510	above = 0;
511	inv = 0;
512	container = 0;
513	env = 0;
514	more = 0;
515	head = 0;
516	map = 0;
517	active_next = 0;
518	active_prev = 0;
519
520	memset (static_cast<object_pod *>(this), 0, sizeof (object_pod));
521
522	SET_FLAG (this, FLAG_REMOVED);
523
524	/* What is not cleared is next, prev, and count */
525
526	expmul = 1.0;
527	face = blank_face;
528
529	if (settings.casting_time)
530	casting_time = -1;
531	}
532
533	void object::clone (object *destination)
534	{
535	*(object_copy *)destination = *this;
536	*(object_pod *)destination = *this;
537
538	if (self || cb)
539	INVOKE_OBJECT (CLONE, this, ARG_OBJECT (destination));
540	}
541
542	/*	597	/*
543	* copy object first frees everything allocated by the second object,	598	* copy_to first frees everything allocated by the dst object,
544	* and then copies the contends of the first object into the second	599	* and then copies the contents of itself into the second
545	* object, allocating what needs to be allocated. Basically, any	600	* object, allocating what needs to be allocated. Basically, any
546	* data that is malloc'd needs to be re-malloc/copied. Otherwise,	601	* data that is malloc'd needs to be re-malloc/copied. Otherwise,
547	* if the first object is freed, the pointers in the new object	602	* if the first object is freed, the pointers in the new object
548	* will point at garbage.	603	* will point at garbage.
549	*/	604	*/
550	void	605	void
551	copy_object (object *op2, object *op)	606	object::copy_to (object *dst)
552	{	607	{
553	bool is_freed = QUERY_FLAG (op, FLAG_FREED);	608	dst->remove ();
554	bool is_removed = QUERY_FLAG (op, FLAG_REMOVED);	609	*(object_copy *)dst = *this;
555		610	dst->flag [FLAG_REMOVED] = true;
556	op2->clone (op);
557
558	if (is_freed)
559	SET_FLAG (op, FLAG_FREED);
560	if (is_removed)
561	SET_FLAG (op, FLAG_REMOVED);
562
563	if (op2->speed < 0)
564	op->speed_left = op2->speed_left - RANDOM () % 200 / 100.0;
565		611
566	/* Copy over key_values, if any. */	612	/* Copy over key_values, if any. */
567	if (op2->key_values)	613	if (key_values)
568	{	614	{
569	key_value *tail = 0;	615	key_value *tail = 0;
570	key_value *i;
571
572	op->key_values = 0;	616	dst->key_values = 0;
573		617
574	for (i = op2->key_values; i; i = i->next)	618	for (key_value *i = key_values; i; i = i->next)
575	{	619	{
576	key_value *new_link = new key_value;	620	key_value *new_link = new key_value;
577		621
578	new_link->next = 0;	622	new_link->next = 0;
579	new_link->key = i->key;	623	new_link->key = i->key;
580	new_link->value = i->value;	624	new_link->value = i->value;
581		625
582	/* Try and be clever here, too. */	626	/* Try and be clever here, too. */
583	if (!op->key_values)	627	if (!dst->key_values)
584	{	628	{
585	op->key_values = new_link;	629	dst->key_values = new_link;
586	tail = new_link;	630	tail = new_link;
587	}	631	}
588	else	632	else
589	{	633	{
590	tail->next = new_link;	634	tail->next = new_link;
591	tail = new_link;	635	tail = new_link;
592	}	636	}
593	}	637	}
594	}	638	}
595		639
596	update_ob_speed (op);	640	if (speed < 0)
		641	dst->speed_left -= rndm ();
		642
		643	dst->set_speed (dst->speed);
		644	}
		645
		646	void
		647	object::instantiate ()
		648	{
		649	if (!uuid.seq) // HACK
		650	uuid = UUID::gen ();
		651
		652	speed_left = -0.1f;
		653	/* copy the body_info to the body_used - this is only really
		654	* need for monsters, but doesn't hurt to do it for everything.
		655	* by doing so, when a monster is created, it has good starting
		656	* values for the body_used info, so when items are created
		657	* for it, they can be properly equipped.
		658	*/
		659	for (int i = NUM_BODY_LOCATIONS; i--; )
		660	slot[i].used = slot[i].info;
		661
		662	attachable::instantiate ();
		663	}
		664
		665	object *
		666	object::clone ()
		667	{
		668	object *neu = create ();
		669	copy_to (neu);
		670	neu->map = map; // not copied by copy_to
		671	return neu;
597	}	672	}
598		673
599	/*	674	/*
600	* If an object with the IS_TURNABLE() flag needs to be turned due	675	* If an object with the IS_TURNABLE() flag needs to be turned due
601	* to the closest player being on the other side, this function can	676	* to the closest player being on the other side, this function can
602	* be called to update the face variable, _and_ how it looks on the map.	677	* be called to update the face variable, _and_ how it looks on the map.
603	*/	678	*/
604
605	void	679	void
606	update_turn_face (object *op)	680	update_turn_face (object *op)
607	{	681	{
608	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || op->arch == NULL)	682	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || !op->arch)
609	return;	683	return;
		684
610	SET_ANIMATION (op, op->direction);	685	SET_ANIMATION (op, op->direction);
611	update_object (op, UP_OBJ_FACE);	686	update_object (op, UP_OBJ_FACE);
612	}	687	}
613		688
614	/*	689	/*
615	* Updates the speed of an object. If the speed changes from 0 to another	690	* Updates the speed of an object. If the speed changes from 0 to another
616	* value, or vice versa, then add/remove the object from the active list.	691	* value, or vice versa, then add/remove the object from the active list.
617	* This function needs to be called whenever the speed of an object changes.	692	* This function needs to be called whenever the speed of an object changes.
618	*/	693	*/
619	void	694	void
620	update_ob_speed (object *op)	695	object::set_speed (float speed)
621	{	696	{
622	extern int arch_init;	697	if (flag [FLAG_FREED] && speed)
623
624	/* No reason putting the archetypes objects on the speed list,
625	* since they never really need to be updated.
626	*/
627
628	if (QUERY_FLAG (op, FLAG_FREED) && op->speed)
629	{	698	{
630	LOG (llevError, "Object %s is freed but has speed.\n", &op->name);	699	LOG (llevError, "Object %s is freed but has speed.\n", &name);
631	#ifdef MANY_CORES
632	abort ();
633	#else
634	op->speed = 0;	700	speed = 0;
635	#endif
636	}
637
638	if (arch_init)
639	return;
640
641	if (FABS (op->speed) > MIN_ACTIVE_SPEED)
642	{	701	}
643	/* If already on active list, don't do anything */
644	if (op->active_next || op->active_prev || op == active_objects)
645	return;
646		702
647	/* process_events() expects us to insert the object at the beginning	703	this->speed = speed;
648	* of the list. */
649	op->active_next = active_objects;
650		704
651	if (op->active_next != NULL)	705	if (has_active_speed ())
652	op->active_next->active_prev = op;	706	activate ();
653
654	active_objects = op;
655	}
656	else	707	else
657	{	708	deactivate ();
658	/* If not on the active list, nothing needs to be done */
659	if (!op->active_next && !op->active_prev && op != active_objects)
660	return;
661
662	if (op->active_prev == NULL)
663	{
664	active_objects = op->active_next;
665
666	if (op->active_next != NULL)
667	op->active_next->active_prev = NULL;
668	}
669	else
670	{
671	op->active_prev->active_next = op->active_next;
672
673	if (op->active_next)
674	op->active_next->active_prev = op->active_prev;
675	}
676
677	op->active_next = NULL;
678	op->active_prev = NULL;
679	}
680	}	709	}
681		710
682	/* This function removes object 'op' from the list of active
683	* objects.
684	* This should only be used for style maps or other such
685	* reference maps where you don't want an object that isn't
686	* in play chewing up cpu time getting processed.
687	* The reverse of this is to call update_ob_speed, which
688	* will do the right thing based on the speed of the object.
689	*/
690	void
691	remove_from_active_list (object *op)
692	{
693	/* If not on the active list, nothing needs to be done */
694	if (!op->active_next && !op->active_prev && op != active_objects)
695	return;
696
697	if (op->active_prev == NULL)
698	{
699	active_objects = op->active_next;
700	if (op->active_next != NULL)
701	op->active_next->active_prev = NULL;
702	}
703	else
704	{
705	op->active_prev->active_next = op->active_next;
706	if (op->active_next)
707	op->active_next->active_prev = op->active_prev;
708	}
709	op->active_next = NULL;
710	op->active_prev = NULL;
711	}
712
713	/*	711	/*
714	* update_object() updates the array which represents the map.	712	* update_object() updates the the map.
715	* It takes into account invisible objects (and represent squares covered	713	* It takes into account invisible objects (and represent squares covered
716	* by invisible objects by whatever is below them (unless it's another	714	* by invisible objects by whatever is below them (unless it's another
717	* invisible object, etc...)	715	* invisible object, etc...)
718	* If the object being updated is beneath a player, the look-window	716	* If the object being updated is beneath a player, the look-window
719	* of that player is updated (this might be a suboptimal way of	717	* of that player is updated (this might be a suboptimal way of
720	* updating that window, though, since update_object() is called _often_)	718	* updating that window, though, since update_object() is called _often_)
721	*	719	*
722	* action is a hint of what the caller believes need to be done.	720	* action is a hint of what the caller believes need to be done.
723	* For example, if the only thing that has changed is the face (due to
724	* an animation), we don't need to call update_position until that actually
725	* comes into view of a player. OTOH, many other things, like addition/removal
726	* of walls or living creatures may need us to update the flags now.
727	* current action are:	721	* current action are:
728	* UP_OBJ_INSERT: op was inserted	722	* UP_OBJ_INSERT: op was inserted
729	* UP_OBJ_REMOVE: op was removed	723	* UP_OBJ_REMOVE: op was removed
730	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update	724	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update
731	* as that is easier than trying to look at what may have changed.	725	* as that is easier than trying to look at what may have changed.
732	* UP_OBJ_FACE: only the objects face has changed.	726	* UP_OBJ_FACE: only the objects face has changed.
733	*/	727	*/
734
735	void	728	void
736	update_object (object *op, int action)	729	update_object (object *op, int action)
737	{	730	{
738	int update_now = 0, flags;	731	if (!op)
739	MoveType move_on, move_off, move_block, move_slow;
740
741	if (op == NULL)
742	{	732	{
743	/* this should never happen */	733	/* this should never happen */
744	LOG (llevDebug, "update_object() called for NULL object.\n");	734	LOG (llevError | logBacktrace, "update_object() called for NULL object.\n");
745	return;	735	return;
746	}	736	}
747		737
748	if (op->env != NULL)	738	if (!op->is_on_map ())
749	{	739	{
750	/* Animation is currently handled by client, so nothing	740	/* Animation is currently handled by client, so nothing
751	* to do in this case.	741	* to do in this case.
752	*/	742	*/
753	return;	743	return;
754	}	744	}
755		745
756	/* If the map is saving, don't do anything as everything is
757	* going to get freed anyways.
758	*/
759	if (!op->map || op->map->in_memory == MAP_SAVING)
760	return;
761
762	/* make sure the object is within map boundaries */	746	/* make sure the object is within map boundaries */
763	if (op->x < 0 || op->x >= MAP_WIDTH (op->map) || op->y < 0 || op->y >= MAP_HEIGHT (op->map))	747	if (op->x < 0 || op->x >= op->map->width || op->y < 0 || op->y >= op->map->height)
764	{	748	{
765	LOG (llevError, "update_object() called for object out of map!\n");	749	LOG (llevError, "update_object() called for object out of map!\n");
766	#ifdef MANY_CORES	750	#ifdef MANY_CORES
767	abort ();	751	abort ();
768	#endif	752	#endif
769	return;	753	return;
770	}	754	}
771		755
772	flags = GET_MAP_FLAGS (op->map, op->x, op->y);	756	mapspace &m = op->ms ();
773	SET_MAP_FLAGS (op->map, op->x, op->y, flags | P_NEED_UPDATE);
774	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);
775	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);
776	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);
777	move_off = GET_MAP_MOVE_OFF (op->map, op->x, op->y);
778		757
		758	if (!(m.flags_ & P_UPTODATE))
		759	/* nop */;
779	if (action == UP_OBJ_INSERT)	760	else if (action == UP_OBJ_INSERT)
780	{	761	{
		762	// this is likely overkill, TODO: revisit (schmorp)
781	if (QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(flags & P_BLOCKSVIEW))	763	if ((QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(m.flags_ & P_BLOCKSVIEW))
782	update_now = 1;
783
784	if (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(flags & P_NO_MAGIC))	764	|| (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(m.flags_ & P_NO_MAGIC))
785	update_now = 1;	765	|| (op->type == PLAYER && !(m.flags_ & P_PLAYER))
786		766	|| (op->type == SAFE_GROUND && !(m.flags_ & P_SAFE))
		767	|| (QUERY_FLAG (op, FLAG_ALIVE) && !(m.flags_ & P_IS_ALIVE))
787	if (QUERY_FLAG (op, FLAG_DAMNED) && !(flags & P_NO_CLERIC))	768	|| (QUERY_FLAG (op, FLAG_DAMNED) && !(m.flags_ & P_NO_CLERIC))
788	update_now = 1;
789
790	if (QUERY_FLAG (op, FLAG_ALIVE) && !(flags & P_IS_ALIVE))
791	update_now = 1;
792
793	if (op->type == SAFE_GROUND && !(flags & P_SAFE))
794	update_now = 1;
795
796	if ((move_on | op->move_on) != move_on)	769	|| (m.move_on | op->move_on ) != m.move_on
797	update_now = 1;
798
799	if ((move_off | op->move_off) != move_off)	770	|| (m.move_off | op->move_off ) != m.move_off
800	update_now = 1;	771	|| (m.move_slow | op->move_slow) != m.move_slow
801
802	/* This isn't perfect, but I don't expect a lot of objects to	772	/* This isn't perfect, but I don't expect a lot of objects to
803	* to have move_allow right now.	773	* to have move_allow right now.
804	*/	774	*/
805	if (((move_block | op->move_block) & ~op->move_allow) != move_block)	775	|| ((m.move_block | op->move_block) & ~op->move_allow) != m.move_block
806	update_now = 1;	776	|| 1) // the above is not strong enough a test to skip updating. los maybe? TODO (Schmorp)
807		777	m.flags_ = 0;
808	if ((move_slow | op->move_slow) != move_slow)
809	update_now = 1;
810	}	778	}
811	/* if the object is being removed, we can't make intelligent	779	/* if the object is being removed, we can't make intelligent
812	* decisions, because remove_ob can't really pass the object	780	* decisions, because remove_ob can't really pass the object
813	* that is being removed.	781	* that is being removed.
814	*/	782	*/
815	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)	783	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)
816	update_now = 1;	784	m.flags_ = 0;
817	else if (action == UP_OBJ_FACE)	785	else if (action == UP_OBJ_FACE)
818	/* Nothing to do for that case */ ;	786	/* Nothing to do for that case */ ;
819	else	787	else
820	LOG (llevError, "update_object called with invalid action: %d\n", action);	788	LOG (llevError, "update_object called with invalid action: %d\n", action);
821		789
822	if (update_now)
823	{
824	SET_MAP_FLAGS (op->map, op->x, op->y, flags | P_NO_ERROR | P_NEED_UPDATE);
825	update_position (op->map, op->x, op->y);
826	}
827
828	if (op->more != NULL)	790	if (op->more)
829	update_object (op->more, action);	791	update_object (op->more, action);
830	}
831
832	object::vector object::mortals;
833	object::vector object::objects; // not yet used
834	object *object::first;
835
836	void object::free_mortals ()
837	{
838	for (AUTODECL (i, mortals.begin ()); i != mortals.end ();)
839	if ((*i)->refcnt)
840	++i; // further delay freeing
841	else
842	{
843	delete *i;
844	mortals.erase (i);
845	}
846
847	static int lastmortals = 0;//D
848
849	if (mortals.size() != lastmortals && lastmortals > 100)//D
850	{
851	lastmortals = mortals.size ();//D
852	LOG (llevDebug, "%d objects in mortal queue\n", lastmortals);//D
853	}
854	}	792	}
855		793
856	object::object ()	794	object::object ()
857	{	795	{
858	SET_FLAG (this, FLAG_REMOVED);	796	SET_FLAG (this, FLAG_REMOVED);
…		…
861	face = blank_face;	799	face = blank_face;
862	}	800	}
863		801
864	object::~object ()	802	object::~object ()
865	{	803	{
		804	unlink ();
		805
866	free_key_values (this);	806	free_key_values (this);
867	}	807	}
868		808
		809	static int object_count;
		810
869	void object::link ()	811	void object::link ()
870	{	812	{
		813	assert (!index);//D
		814	uuid = UUID::gen ();
871	count = ++ob_count;	815	count = ++object_count;
872	uuid = gen_uuid ();
873		816
874	prev = 0;	817	refcnt_inc ();
875	next = object::first;	818	objects.insert (this);
876
877	if (object::first)
878	object::first->prev = this;
879
880	object::first = this;
881	}	819	}
882		820
883	void object::unlink ()	821	void object::unlink ()
884	{	822	{
885	if (this == object::first)	823	if (!index)
886	object::first = next;	824	return;
887		825
888	/* Remove this object from the list of used objects */	826	objects.erase (this);
889	if (prev) prev->next = next;	827	refcnt_dec ();
890	if (next) next->prev = prev;	828	}
891		829
892	prev = 0;	830	void
893	next = 0;	831	object::activate ()
		832	{
		833	/* If already on active list, don't do anything */
		834	if (active)
		835	return;
		836
		837	if (has_active_speed ())
		838	actives.insert (this);
		839	}
		840
		841	void
		842	object::activate_recursive ()
		843	{
		844	activate ();
		845
		846	for (object *op = inv; op; op = op->below)
		847	op->activate_recursive ();
		848	}
		849
		850	/* This function removes object 'op' from the list of active
		851	* objects.
		852	* This should only be used for style maps or other such
		853	* reference maps where you don't want an object that isn't
		854	* in play chewing up cpu time getting processed.
		855	* The reverse of this is to call update_ob_speed, which
		856	* will do the right thing based on the speed of the object.
		857	*/
		858	void
		859	object::deactivate ()
		860	{
		861	/* If not on the active list, nothing needs to be done */
		862	if (!active)
		863	return;
		864
		865	actives.erase (this);
		866	}
		867
		868	void
		869	object::deactivate_recursive ()
		870	{
		871	for (object *op = inv; op; op = op->below)
		872	op->deactivate_recursive ();
		873
		874	deactivate ();
		875	}
		876
		877	void
		878	object::set_flag_inv (int flag, int value)
		879	{
		880	for (object *op = inv; op; op = op->below)
		881	{
		882	op->flag [flag] = value;
		883	op->set_flag_inv (flag, value);
		884	}
		885	}
		886
		887	/*
		888	* Remove and free all objects in the inventory of the given object.
		889	* object.c ?
		890	*/
		891	void
		892	object::destroy_inv (bool drop_to_ground)
		893	{
		894	// need to check first, because the checks below might segfault
		895	// as we might be on an invalid mapspace and crossfire code
		896	// is too buggy to ensure that the inventory is empty.
		897	// corollary: if you create arrows etc. with stuff in its inventory,
		898	// cf will crash below with off-map x and y
		899	if (!inv)
		900	return;
		901
		902	/* Only if the space blocks everything do we not process -
		903	* if some form of movement is allowed, let objects
		904	* drop on that space.
		905	*/
		906	if (!drop_to_ground
		907	|| !map
		908	|| map->in_memory != MAP_ACTIVE
		909	|| map->no_drop
		910	|| ms ().move_block == MOVE_ALL)
		911	{
		912	while (inv)
		913	{
		914	inv->destroy_inv (false);
		915	inv->destroy ();
		916	}
		917	}
		918	else
		919	{ /* Put objects in inventory onto this space */
		920	while (inv)
		921	{
		922	object *op = inv;
		923
		924	if (op->flag [FLAG_STARTEQUIP]
		925	|| op->flag [FLAG_NO_DROP]
		926	|| op->type == RUNE
		927	|| op->type == TRAP
		928	|| op->flag [FLAG_IS_A_TEMPLATE]
		929	|| op->flag [FLAG_DESTROY_ON_DEATH])
		930	op->destroy (true);
		931	else
		932	map->insert (op, x, y);
		933	}
		934	}
894	}	935	}
895		936
896	object *object::create ()	937	object *object::create ()
897	{	938	{
898	object *op = new object;	939	object *op = new object;
899	op->link ();	940	op->link ();
900	return op;	941	return op;
901	}	942	}
902		943
903	/*	944	static struct freed_map : maptile
904	* free_object() frees everything allocated by an object, removes	945	{
905	* it from the list of used objects, and puts it on the list of	946	freed_map ()
906	* free objects. The IS_FREED() flag is set in the object.	947	{
907	* The object must have been removed by remove_ob() first for	948	path = "<freed objects map>";
908	* this function to succeed.	949	name = "/internal/freed_objects_map";
909	*	950	width = 3;
910	* If destroy_inventory is set, free inventory as well. Else drop items in	951	height = 3;
911	* inventory to the ground.	952	no_drop = 1;
912	*/	953	no_reset = 1;
		954
		955	alloc ();
		956	in_memory = MAP_ACTIVE;
		957	}
		958
		959	~freed_map ()
		960	{
		961	destroy ();
		962	}
		963	} freed_map; // freed objects are moved here to avoid crashes
		964
		965	void
		966	object::do_destroy ()
		967	{
		968	if (flag [FLAG_IS_LINKED])
		969	remove_button_link (this);
		970
		971	if (flag [FLAG_FRIENDLY])
		972	remove_friendly_object (this);
		973
		974	remove ();
		975
		976	attachable::do_destroy ();
		977
		978	deactivate ();
		979	unlink ();
		980
		981	flag [FLAG_FREED] = 1;
		982
		983	// hack to ensure that freed objects still have a valid map
		984	map = &freed_map;
		985	x = 1;
		986	y = 1;
		987
		988	if (more)
		989	{
		990	more->destroy ();
		991	more = 0;
		992	}
		993
		994	head = 0;
		995
		996	// clear those pointers that likely might cause circular references
		997	owner = 0;
		998	enemy = 0;
		999	attacked_by = 0;
		1000	current_weapon = 0;
		1001	}
		1002
		1003	void
913	void object::destroy (bool destroy_inventory)	1004	object::destroy (bool destroy_inventory)
914	{	1005	{
915	if (QUERY_FLAG (this, FLAG_FREED))	1006	if (destroyed ())
916	return;	1007	return;
917		1008
918	if (QUERY_FLAG (this, FLAG_FRIENDLY))	1009	if (!is_head () && !head->destroyed ())
919	remove_friendly_object (this);
920
921	if (!QUERY_FLAG (this, FLAG_REMOVED))
922	remove_ob (this);
923
924	SET_FLAG (this, FLAG_FREED);
925
926	if (more)
927	{	1010	{
		1011	LOG (llevError | logBacktrace, "tried to destroy the tail of an object");
928	more->destroy (destroy_inventory);	1012	head->destroy (destroy_inventory);
929	more = 0;	1013	return;
930	}
931
932	if (inv)
933	{	1014	}
934	/* Only if the space blocks everything do we not process -
935	* if some form of movement is allowed, let objects
936	* drop on that space.
937	*/
938	if (destroy_inventory || !map || map->in_memory != MAP_IN_MEMORY || GET_MAP_MOVE_BLOCK (map, x, y) == MOVE_ALL)
939	{
940	object *op = inv;
941		1015
942	while (op)	1016	destroy_inv (!destroy_inventory);
943	{
944	object *tmp = op->below;
945	op->destroy (destroy_inventory);
946	op = tmp;
947	}
948	}
949	else
950	{ /* Put objects in inventory onto this space */
951	object *op = inv;
952		1017
953	while (op)	1018	if (is_head ())
954	{	1019	if (sound_destroy)
955	object *tmp = op->below;	1020	play_sound (sound_destroy);
		1021	else if (flag [FLAG_MONSTER])
		1022	play_sound (sound_find ("monster_destroy")); // quick hack, too lazy to create a generic mechanism
956		1023
957	remove_ob (op);	1024	attachable::destroy ();
958
959	if (QUERY_FLAG (op, FLAG_STARTEQUIP)
960	|| QUERY_FLAG (op, FLAG_NO_DROP) || op->type == RUNE || op->type == TRAP || QUERY_FLAG (op, FLAG_IS_A_TEMPLATE))
961	free_object (op);
962	else
963	{
964	op->x = x;
965	op->y = y;
966	insert_ob_in_map (op, map, 0, 0); /* Insert in same map as the envir */
967	}
968
969	op = tmp;
970	}
971	}
972	}
973
974	// clear those pointers that likely might have circular references to us
975	owner = 0;
976	enemy = 0;
977	attacked_by = 0;
978
979	// only relevant for players(?), but make sure of it anyways
980	contr = 0;
981
982	/* Remove object from the active list */
983	speed = 0;
984	update_ob_speed (this);
985
986	unlink ();
987
988	mortals.push_back (this);
989	}	1025	}
990		1026
991	/*	1027	/* op->remove ():
992	* sub_weight() recursively (outwards) subtracts a number from the
993	* weight of an object (and what is carried by it's environment(s)).
994	*/
995
996	void
997	sub_weight (object *op, signed long weight)
998	{
999	while (op != NULL)
1000	{
1001	if (op->type == CONTAINER)
1002	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1003
1004	op->carrying -= weight;
1005	op = op->env;
1006	}
1007	}
1008
1009	/* remove_ob(op):
1010	* This function removes the object op from the linked list of objects	1028	* This function removes the object op from the linked list of objects
1011	* which it is currently tied to. When this function is done, the	1029	* which it is currently tied to. When this function is done, the
1012	* object will have no environment. If the object previously had an	1030	* object will have no environment. If the object previously had an
1013	* environment, the x and y coordinates will be updated to	1031	* environment, the x and y coordinates will be updated to
1014	* the previous environment.	1032	* the previous environment.
1015	* Beware: This function is called from the editor as well!
1016	*/	1033	*/
1017
1018	void	1034	void
1019	remove_ob (object *op)	1035	object::do_remove ()
1020	{	1036	{
1021	object *tmp, *last = 0;	1037	object *tmp, *last = 0;
1022	object *otmp;	1038	object *otmp;
1023		1039
1024	int check_walk_off;	1040	if (flag [FLAG_REMOVED])
1025	maptile *m;
1026
1027	sint16 x, y;
1028
1029	if (QUERY_FLAG (op, FLAG_REMOVED))
1030	return;	1041	return;
1031		1042
1032	SET_FLAG (op, FLAG_REMOVED);	1043	INVOKE_OBJECT (REMOVE, this);
1033		1044
1034	if (op->more != NULL)	1045	flag [FLAG_REMOVED] = true;
1035	remove_ob (op->more);	1046
		1047	if (more)
		1048	more->remove ();
1036		1049
1037	/*	1050	/*
1038	* In this case, the object to be removed is in someones	1051	* In this case, the object to be removed is in someones
1039	* inventory.	1052	* inventory.
1040	*/	1053	*/
1041	if (op->env != NULL)	1054	if (env)
1042	{	1055	{
1043	if (op->nrof)	1056	flag [FLAG_REMOVED] = false; // hack around the issue of visible_to checking flag_removed
1044	sub_weight (op->env, op->weight * op->nrof);	1057	if (object *pl = visible_to ())
1045	else	1058	esrv_del_item (pl->contr, count);
1046	sub_weight (op->env, op->weight + op->carrying);	1059	flag [FLAG_REMOVED] = true; // hack around the issue of visible_to checking flag_removed
		1060
		1061	adjust_weight (env, -total_weight ());
		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;
1047		1078
1048	/* 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
1049	* made to players inventory. If set, avoiding the call	1080	* made to players inventory. If set, avoiding the call
1050	* to save cpu time.	1081	* to save cpu time.
1051	*/	1082	*/
1052	if ((otmp = is_player_inv (op->env)) != NULL && otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))	1083	if ((otmp = in_player ()) && otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1053	fix_player (otmp);	1084	otmp->update_stats ();
1054
1055	if (op->above != NULL)
1056	op->above->below = op->below;
1057	else
1058	op->env->inv = op->below;
1059
1060	if (op->below != NULL)
1061	op->below->above = op->above;
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	op->x = op->env->x, op->y = op->env->y;
1068	op->map = op->env->map;
1069	op->above = NULL, op->below = NULL;
1070	op->env = NULL;
1071	}	1085	}
1072	else if (op->map)	1086	else if (map)
1073	{	1087	{
1074	x = op->x;	1088	map->dirty = true;
1075	y = op->y;	1089	mapspace &ms = this->ms ();
1076	m = get_map_from_coord (op->map, &x, &y);
1077		1090
1078	if (!m)	1091	if (object *pl = ms.player ())
1079	{	1092	{
1080	LOG (llevError, "remove_ob called when object was on map but appears to not be within valid coordinates? %s (%d,%d)\n",	1093	if (type == PLAYER) // this == pl(!)
1081	op->map->path, op->x, op->y);
1082	/* in old days, we used to set x and y to 0 and continue.
1083	* it seems if we get into this case, something is probablye
1084	* screwed up and should be fixed.
1085	*/	1094	{
1086	abort ();	1095	// leaving a spot always closes any open container on the ground
		1096	if (container && !container->env)
		1097	// this causes spurious floorbox updates, but it ensures
		1098	// that the CLOSE event is being sent.
		1099	close_container ();
		1100
		1101	--map->players;
		1102	map->touch ();
		1103	}
		1104	else if (pl->container == this)
		1105	{
		1106	// removing a container should close it
		1107	close_container ();
		1108	}
		1109
		1110	esrv_del_item (pl->contr, count);
1087	}	1111	}
1088		1112
1089	if (op->map != m)
1090	LOG (llevDebug, "remove_ob: Object not really on map it claimed to be on? %s != %s, %d,%d != %d,%d\n",
1091	op->map->path, m->path, op->x, op->y, x, y);
1092
1093	/* Re did the following section of code - it looks like it had
1094	* lots of logic for things we no longer care about
1095	*/
1096
1097	/* link the object above us */	1113	/* link the object above us */
1098	if (op->above)	1114	// re-link, make sure compiler can easily use cmove
1099	op->above->below = op->below;	1115	*(above ? &above->below : &ms.top) = below;
1100	else	1116	*(below ? &below->above : &ms.bot) = above;
1101	SET_MAP_TOP (m, x, y, op->below); /* we were top, set new top */
1102		1117
1103	/* Relink the object below us, if there is one */	1118	above = 0;
1104	if (op->below)	1119	below = 0;
1105	op->below->above = op->above;	1120
1106	else	1121	if (map->in_memory == MAP_SAVING)
		1122	return;
		1123
		1124	int check_walk_off = !flag [FLAG_NO_APPLY];
		1125
		1126	if (object *pl = ms.player ())
1107	{	1127	{
1108	/* Nothing below, which means we need to relink map object for this space	1128	if (pl->container == this)
1109	* use translated coordinates in case some oddness with map tiling is	1129	/* If a container that the player is currently using somehow gets
1110	* evident	1130	* removed (most likely destroyed), update the player view
		1131	* appropriately.
1111	*/	1132	*/
1112	if (GET_MAP_OB (m, x, y) != op)	1133	pl->close_container ();
1113	{
1114	char *dump = dump_object (op);
1115	LOG (llevError,
1116	"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);
1117	free (dump);
1118	dump = dump_object (GET_MAP_OB (m, x, y));
1119	LOG (llevError, "%s\n", dump);
1120	free (dump);
1121	}
1122		1134
1123	SET_MAP_OB (m, x, y, op->above); /* goes on above it. */	1135	//TODO: the floorbox prev/next might need updating
		1136	//esrv_del_item (pl->contr, count);
		1137	//TODO: update floorbox to preserve ordering
		1138	if (pl->contr->ns)
		1139	pl->contr->ns->floorbox_update ();
1124	}	1140	}
1125		1141
1126	op->above = 0;	1142	for (tmp = ms.bot; tmp; tmp = tmp->above)
1127	op->below = 0;
1128
1129	if (op->map->in_memory == MAP_SAVING)
1130	return;
1131
1132	check_walk_off = !QUERY_FLAG (op, FLAG_NO_APPLY);
1133
1134	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)
1135	{	1143	{
1136	/* No point updating the players look faces if he is the object	1144	/* No point updating the players look faces if he is the object
1137	* being removed.	1145	* being removed.
1138	*/	1146	*/
1139		1147
1140	if (tmp->type == PLAYER && tmp != op)	1148	/* See if object moving off should effect something */
		1149	if (check_walk_off
		1150	&& ((move_type & tmp->move_off)
		1151	&& (move_type & ~tmp->move_off & ~tmp->move_block) == 0))
1141	{	1152	{
1142	/* If a container that the player is currently using somehow gets
1143	* removed (most likely destroyed), update the player view
1144	* appropriately.
1145	*/
1146	if (tmp->container == op)
1147	{
1148	CLEAR_FLAG (op, FLAG_APPLIED);
1149	tmp->container = NULL;
1150	}
1151
1152	tmp->contr->socket.update_look = 1;
1153	}
1154
1155	/* See if player moving off should effect something */
1156	if (check_walk_off
1157	&& ((op->move_type & tmp->move_off)
1158	&& (op->move_type & ~tmp->move_off & ~tmp->move_block) == 0))
1159	{
1160	move_apply (tmp, op, NULL);	1153	move_apply (tmp, this, 0);
1161		1154
1162	if (op->destroyed ())	1155	if (destroyed ())
1163	LOG (llevError, "BUG: remove_ob(): name %s, destroyed leaving object\n", tmp->debug_desc ());	1156	LOG (llevError, "BUG: remove_ob(): name %s, destroyed leaving object\n", tmp->debug_desc ());
1164	}	1157	}
1165		1158
1166	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */
1167
1168	if (tmp->above == tmp)
1169	tmp->above = NULL;
1170
1171	last = tmp;	1159	last = tmp;
1172	}	1160	}
1173		1161
1174	/* last == NULL of there are no objects on this space */	1162	/* last == NULL if there are no objects on this space */
		1163	//TODO: this makes little sense, why only update the topmost object?
1175	if (last == NULL)	1164	if (!last)
1176	{	1165	map->at (x, y).flags_ = 0;
1177	/* set P_NEED_UPDATE, otherwise update_position will complain. In theory,
1178	* we could preserve the flags (GET_MAP_FLAGS), but update_position figures
1179	* those out anyways, and if there are any flags set right now, they won't
1180	* be correct anyways.
1181	*/
1182	SET_MAP_FLAGS (op->map, op->x, op->y, P_NEED_UPDATE);
1183	update_position (op->map, op->x, op->y);
1184	}
1185	else	1166	else
1186	update_object (last, UP_OBJ_REMOVE);	1167	update_object (last, UP_OBJ_REMOVE);
1187		1168
1188	if (QUERY_FLAG (op, FLAG_BLOCKSVIEW) || (op->glow_radius != 0))	1169	if (flag [FLAG_BLOCKSVIEW] || glow_radius)
1189	update_all_los (op->map, op->x, op->y);	1170	update_all_los (map, x, y);
1190	}	1171	}
1191	}	1172	}
1192		1173
1193	/*	1174	/*
1194	* merge_ob(op,top):	1175	* merge_ob(op,top):
…		…
1202	merge_ob (object *op, object *top)	1183	merge_ob (object *op, object *top)
1203	{	1184	{
1204	if (!op->nrof)	1185	if (!op->nrof)
1205	return 0;	1186	return 0;
1206		1187
1207	if (top == NULL)	1188	if (!top)
1208	for (top = op; top != NULL && top->above != NULL; top = top->above);	1189	for (top = op; top && top->above; top = top->above)
		1190	;
1209		1191
1210	for (; top != NULL; top = top->below)	1192	for (; top; top = top->below)
1211	{	1193	if (object::can_merge (op, top))
1212	if (top == op)
1213	continue;
1214	if (CAN_MERGE (op, top))
1215	{	1194	{
1216	top->nrof += op->nrof;	1195	top->nrof += op->nrof;
1217		1196
1218	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/	1197	if (object *pl = top->visible_to ())
1219	op->weight = 0; /* Don't want any adjustements now */	1198	esrv_update_item (UPD_NROF, pl, top);
1220	remove_ob (op);	1199
1221	free_object (op);	1200	op->weight = 0; // cancel the addition above
		1201	op->carrying = 0; // must be 0 already
		1202
		1203	op->destroy (1);
		1204
1222	return top;	1205	return top;
1223	}	1206	}
1224	}
1225		1207
1226	return 0;	1208	return 0;
1227	}	1209	}
1228		1210
		1211	void
		1212	object::expand_tail ()
		1213	{
		1214	if (more)
		1215	return;
		1216
		1217	object *prev = this;
		1218
		1219	for (archetype *at = (archetype *)arch->more; at; at = (archetype *)at->more)
		1220	{
		1221	object *op = arch_to_object (at);
		1222
		1223	op->name = name;
		1224	op->name_pl = name_pl;
		1225	op->title = title;
		1226
		1227	op->head = this;
		1228	prev->more = op;
		1229
		1230	prev = op;
		1231	}
		1232	}
		1233
1229	/*	1234	/*
1230	* same as insert_ob_in_map except it handle separate coordinates and do a clean	1235	* same as insert_ob_in_map except it handles separate coordinates and does a clean
1231	* job preparing multi-part monsters	1236	* job preparing multi-part monsters.
1232	*/	1237	*/
1233	object *	1238	object *
1234	insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)	1239	insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)
1235	{	1240	{
1236	object *tmp;
1237
1238	if (op->head)
1239	op = op->head;
1240
1241	for (tmp = op; tmp; tmp = tmp->more)	1241	for (object *tmp = op->head_ (); tmp; tmp = tmp->more)
1242	{	1242	{
1243	tmp->x = x + tmp->arch->clone.x;	1243	tmp->x = x + tmp->arch->x;
1244	tmp->y = y + tmp->arch->clone.y;	1244	tmp->y = y + tmp->arch->y;
1245	}	1245	}
1246		1246
1247	return insert_ob_in_map (op, m, originator, flag);	1247	return insert_ob_in_map (op, m, originator, flag);
1248	}	1248	}
1249		1249
…		…
1265	* Return value:	1265	* Return value:
1266	* new object if 'op' was merged with other object	1266	* new object if 'op' was merged with other object
1267	* NULL if 'op' was destroyed	1267	* NULL if 'op' was destroyed
1268	* just 'op' otherwise	1268	* just 'op' otherwise
1269	*/	1269	*/
1270
1271	object *	1270	object *
1272	insert_ob_in_map (object *op, maptile *m, object *originator, int flag)	1271	insert_ob_in_map (object *op, maptile *m, object *originator, int flag)
1273	{	1272	{
1274	object *tmp, *top, *floor = NULL;	1273	op->remove ();
1275	sint16 x, y;
1276
1277	if (QUERY_FLAG (op, FLAG_FREED))
1278	{
1279	LOG (llevError, "Trying to insert freed object!\n");
1280	return NULL;
1281	}
1282
1283	if (m == NULL)
1284	{
1285	char *dump = dump_object (op);
1286	LOG (llevError, "Trying to insert in null-map!\n%s\n", dump);
1287	free (dump);
1288	return op;
1289	}
1290
1291	if (out_of_map (m, op->x, op->y))
1292	{
1293	char *dump = dump_object (op);
1294	LOG (llevError, "Trying to insert object outside the map.\n%s\n", dump);
1295	#ifdef MANY_CORES
1296	/* Better to catch this here, as otherwise the next use of this object
1297	* is likely to cause a crash. Better to find out where it is getting
1298	* improperly inserted.
1299	*/
1300	abort ();
1301	#endif
1302	free (dump);
1303	return op;
1304	}
1305
1306	if (!QUERY_FLAG (op, FLAG_REMOVED))
1307	{
1308	char *dump = dump_object (op);
1309	LOG (llevError, "Trying to insert (map) inserted object.\n%s\n", dump);
1310	free (dump);
1311	return op;
1312	}
1313
1314	if (op->more != NULL)
1315	{
1316	/* The part may be on a different map. */
1317
1318	object *more = op->more;
1319
1320	/* We really need the caller to normalize coordinates - if
1321	* we set the map, that doesn't work if the location is within
1322	* a map and this is straddling an edge. So only if coordinate
1323	* is clear wrong do we normalize it.
1324	*/
1325	if (OUT_OF_REAL_MAP (more->map, more->x, more->y))
1326	more->map = get_map_from_coord (m, &more->x, &more->y);
1327	else if (!more->map)
1328	{
1329	/* For backwards compatibility - when not dealing with tiled maps,
1330	* more->map should always point to the parent.
1331	*/
1332	more->map = m;
1333	}
1334
1335	if (insert_ob_in_map (more, more->map, originator, flag) == NULL)
1336	{
1337	if (!op->head)
1338	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");
1339
1340	return NULL;
1341	}
1342	}
1343
1344	CLEAR_FLAG (op, FLAG_REMOVED);
1345		1274
1346	/* Ideally, the caller figures this out. However, it complicates a lot	1275	/* Ideally, the caller figures this out. However, it complicates a lot
1347	* of areas of callers (eg, anything that uses find_free_spot would now	1276	* of areas of callers (eg, anything that uses find_free_spot would now
1348	* need extra work	1277	* need extra work
1349	*/	1278	*/
1350	op->map = get_map_from_coord (m, &op->x, &op->y);	1279	if (!xy_normalise (m, op->x, op->y))
1351	x = op->x;	1280	{
1352	y = op->y;	1281	op->head_ ()->destroy (1);// remove head_ once all tail object destroyers found
		1282	return 0;
		1283	}
		1284
		1285	if (object *more = op->more)
		1286	if (!insert_ob_in_map (more, m, originator, flag))
		1287	return 0;
		1288
		1289	CLEAR_FLAG (op, FLAG_REMOVED);
		1290
		1291	op->map = m;
		1292	mapspace &ms = op->ms ();
1353		1293
1354	/* this has to be done after we translate the coordinates.	1294	/* this has to be done after we translate the coordinates.
1355	*/	1295	*/
1356	if (op->nrof && !(flag & INS_NO_MERGE))	1296	if (op->nrof && !(flag & INS_NO_MERGE))
1357	for (tmp = GET_MAP_OB (op->map, x, y); tmp != NULL; tmp = tmp->above)	1297	for (object *tmp = ms.bot; tmp; tmp = tmp->above)
1358	if (CAN_MERGE (op, tmp))	1298	if (object::can_merge (op, tmp))
1359	{	1299	{
		1300	// TODO: we actually want to update tmp, not op,
		1301	// but some caller surely breaks when we return tmp
		1302	// from here :/
1360	op->nrof += tmp->nrof;	1303	op->nrof += tmp->nrof;
1361	remove_ob (tmp);	1304	tmp->destroy (1);
1362	free_object (tmp);
1363	}	1305	}
1364		1306
1365	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */	1307	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */
1366	CLEAR_FLAG (op, FLAG_INV_LOCKED);	1308	CLEAR_FLAG (op, FLAG_INV_LOCKED);
1367		1309
…		…
1374	{	1316	{
1375	LOG (llevError, "insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");	1317	LOG (llevError, "insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");
1376	abort ();	1318	abort ();
1377	}	1319	}
1378		1320
		1321	if (!originator->is_on_map ())
		1322	LOG (llevDebug | logBacktrace, "insert_ob_in_map(%s) called with INS_BELOW_ORIGINATOR when originator '%s' not on map",
		1323	op->debug_desc (), originator->debug_desc ());
		1324
1379	op->above = originator;	1325	op->above = originator;
1380	op->below = originator->below;	1326	op->below = originator->below;
1381
1382	if (op->below)
1383	op->below->above = op;
1384	else
1385	SET_MAP_OB (op->map, op->x, op->y, op);
1386
1387	/* since *below* originator, no need to update top */
1388	originator->below = op;	1327	originator->below = op;
		1328
		1329	*(op->below ? &op->below->above : &ms.bot) = op;
1389	}	1330	}
1390	else	1331	else
1391	{	1332	{
		1333	object *floor = 0;
		1334	object *top = ms.top;
		1335
1392	/* If there are other objects, then */	1336	/* If there are other objects, then */
1393	if ((!(flag & INS_MAP_LOAD)) && ((top = GET_MAP_OB (op->map, op->x, op->y)) != NULL))	1337	if (top)
1394	{	1338	{
1395	object *last = NULL;
1396
1397	/*	1339	/*
1398	* If there are multiple objects on this space, we do some trickier handling.	1340	* If there are multiple objects on this space, we do some trickier handling.
1399	* We've already dealt with merging if appropriate.	1341	* We've already dealt with merging if appropriate.
1400	* Generally, we want to put the new object on top. But if	1342	* Generally, we want to put the new object on top. But if
1401	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last	1343	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last
…		…
1404	* once we get to them. This reduces the need to traverse over all of	1346	* once we get to them. This reduces the need to traverse over all of
1405	* them when adding another one - this saves quite a bit of cpu time	1347	* them when adding another one - this saves quite a bit of cpu time
1406	* when lots of spells are cast in one area. Currently, it is presumed	1348	* when lots of spells are cast in one area. Currently, it is presumed
1407	* that flying non pickable objects are spell objects.	1349	* that flying non pickable objects are spell objects.
1408	*/	1350	*/
1409		1351	for (object *tmp = ms.bot; tmp; tmp = tmp->above)
1410	while (top != NULL)
1411	{	1352	{
1412	if (QUERY_FLAG (top, FLAG_IS_FLOOR) || QUERY_FLAG (top, FLAG_OVERLAY_FLOOR))	1353	if (QUERY_FLAG (tmp, FLAG_IS_FLOOR) || QUERY_FLAG (tmp, FLAG_OVERLAY_FLOOR))
1413	floor = top;	1354	floor = tmp;
1414		1355
1415	if (QUERY_FLAG (top, FLAG_NO_PICK) && (top->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (top, FLAG_IS_FLOOR))	1356	if (QUERY_FLAG (tmp, FLAG_NO_PICK) && (tmp->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (tmp, FLAG_IS_FLOOR))
1416	{	1357	{
1417	/* We insert above top, so we want this object below this */	1358	/* We insert above top, so we want this object below this */
1418	top = top->below;	1359	top = tmp->below;
1419	break;	1360	break;
1420	}	1361	}
1421		1362
1422	last = top;
1423	top = top->above;	1363	top = tmp;
1424	}	1364	}
1425
1426	/* Don't want top to be NULL, so set it to the last valid object */
1427	top = last;
1428		1365
1429	/* We let update_position deal with figuring out what the space	1366	/* We let update_position deal with figuring out what the space
1430	* looks like instead of lots of conditions here.	1367	* looks like instead of lots of conditions here.
1431	* makes things faster, and effectively the same result.	1368	* makes things faster, and effectively the same result.
1432	*/	1369	*/
1433		1370
1434	/* Have object 'fall below' other objects that block view.	1371	/* Have object 'fall below' other objects that block view.
1435	* Unless those objects are exits, type 66	1372	* Unless those objects are exits.
1436	* If INS_ON_TOP is used, don't do this processing	1373	* If INS_ON_TOP is used, don't do this processing
1437	* Need to find the object that in fact blocks view, otherwise	1374	* Need to find the object that in fact blocks view, otherwise
1438	* stacking is a bit odd.	1375	* stacking is a bit odd.
1439	*/	1376	*/
1440	if (!(flag & INS_ON_TOP) &&	1377	if (!(flag & INS_ON_TOP)
1441	(get_map_flags (op->map, NULL, op->x, op->y, NULL, NULL) & P_BLOCKSVIEW) && (op->face && !op->face->visibility))	1378	&& ms.flags () & P_BLOCKSVIEW
		1379	&& (op->face && !faces [op->face].visibility))
1442	{	1380	{
		1381	object *last;
		1382
1443	for (last = top; last != floor; last = last->below)	1383	for (last = top; last != floor; last = last->below)
1444	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))	1384	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))
1445	break;	1385	break;
		1386
1446	/* Check to see if we found the object that blocks view,	1387	/* Check to see if we found the object that blocks view,
1447	* and make sure we have a below pointer for it so that	1388	* and make sure we have a below pointer for it so that
1448	* we can get inserted below this one, which requires we	1389	* we can get inserted below this one, which requires we
1449	* set top to the object below us.	1390	* set top to the object below us.
1450	*/	1391	*/
1451	if (last && last->below && last != floor)	1392	if (last && last->below && last != floor)
1452	top = last->below;	1393	top = last->below;
1453	}	1394	}
1454	} /* If objects on this space */	1395	} /* If objects on this space */
1455		1396
1456	if (flag & INS_MAP_LOAD)
1457	top = GET_MAP_TOP (op->map, op->x, op->y);
1458
1459	if (flag & INS_ABOVE_FLOOR_ONLY)	1397	if (flag & INS_ABOVE_FLOOR_ONLY)
1460	top = floor;	1398	top = floor;
1461		1399
1462	/* Top is the object that our object (op) is going to get inserted above.	1400	// insert object above top, or bottom-most if top = 0
1463	*/
1464
1465	/* First object on this space */
1466	if (!top)	1401	if (!top)
1467	{	1402	{
1468	op->above = GET_MAP_OB (op->map, op->x, op->y);
1469
1470	if (op->above)
1471	op->above->below = op;
1472
1473	op->below = NULL;	1403	op->below = 0;
1474	SET_MAP_OB (op->map, op->x, op->y, op);	1404	op->above = ms.bot;
		1405	ms.bot = op;
		1406
		1407	*(op->above ? &op->above->below : &ms.top) = op;
1475	}	1408	}
1476	else	1409	else
1477	{ /* get inserted into the stack above top */	1410	{
1478	op->above = top->above;	1411	op->above = top->above;
1479
1480	if (op->above)
1481	op->above->below = op;	1412	top->above = op;
1482		1413
1483	op->below = top;	1414	op->below = top;
1484	top->above = op;	1415	*(op->above ? &op->above->below : &ms.top) = op;
1485	}	1416	}
1486		1417	}
1487	if (op->above == NULL)
1488	SET_MAP_TOP (op->map, op->x, op->y, op);
1489	} /* else not INS_BELOW_ORIGINATOR */
1490		1418
1491	if (op->type == PLAYER)	1419	if (op->type == PLAYER)
		1420	{
1492	op->contr->do_los = 1;	1421	op->contr->do_los = 1;
		1422	++op->map->players;
		1423	op->map->touch ();
		1424	}
1493		1425
1494	/* If we have a floor, we know the player, if any, will be above	1426	op->map->dirty = true;
1495	* it, so save a few ticks and start from there.	1427
1496	*/	1428	if (object *pl = ms.player ())
1497	if (!(flag & INS_MAP_LOAD))	1429	//TODO: the floorbox prev/next might need updating
1498	for (tmp = floor ? floor : GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)	1430	//esrv_send_item (pl, op);
1499	if (tmp->type == PLAYER)	1431	//TODO: update floorbox to preserve ordering
1500	tmp->contr->socket.update_look = 1;	1432	if (pl->contr->ns)
		1433	pl->contr->ns->floorbox_update ();
1501		1434
1502	/* If this object glows, it may affect lighting conditions that are	1435	/* If this object glows, it may affect lighting conditions that are
1503	* visible to others on this map. But update_all_los is really	1436	* visible to others on this map. But update_all_los is really
1504	* an inefficient way to do this, as it means los for all players	1437	* an inefficient way to do this, as it means los for all players
1505	* on the map will get recalculated. The players could very well	1438	* on the map will get recalculated. The players could very well
1506	* be far away from this change and not affected in any way -	1439	* be far away from this change and not affected in any way -
1507	* this should get redone to only look for players within range,	1440	* this should get redone to only look for players within range,
1508	* or just updating the P_NEED_UPDATE for spaces within this area	1441	* or just updating the P_UPTODATE for spaces within this area
1509	* of effect may be sufficient.	1442	* of effect may be sufficient.
1510	*/	1443	*/
1511	if (MAP_DARKNESS (op->map) && (op->glow_radius != 0))	1444	if (op->map->darkness && (op->glow_radius != 0))
1512	update_all_los (op->map, op->x, op->y);	1445	update_all_los (op->map, op->x, op->y);
1513		1446
1514	/* updates flags (blocked, alive, no magic, etc) for this map space */	1447	/* updates flags (blocked, alive, no magic, etc) for this map space */
1515	update_object (op, UP_OBJ_INSERT);	1448	update_object (op, UP_OBJ_INSERT);
1516		1449
		1450	INVOKE_OBJECT (INSERT, op);
		1451
1517	/* Don't know if moving this to the end will break anything. However,	1452	/* Don't know if moving this to the end will break anything. However,
1518	* we want to have update_look set above before calling this.	1453	* we want to have floorbox_update called before calling this.
1519	*	1454	*
1520	* check_move_on() must be after this because code called from	1455	* check_move_on() must be after this because code called from
1521	* check_move_on() depends on correct map flags (so functions like	1456	* check_move_on() depends on correct map flags (so functions like
1522	* blocked() and wall() work properly), and these flags are updated by	1457	* blocked() and wall() work properly), and these flags are updated by
1523	* update_object().	1458	* update_object().
1524	*/	1459	*/
1525		1460
1526	/* if this is not the head or flag has been passed, don't check walk on status */	1461	/* if this is not the head or flag has been passed, don't check walk on status */
1527	if (!(flag & INS_NO_WALK_ON) && !op->head)	1462	if (!(flag & INS_NO_WALK_ON) && op->head_ () == op)
1528	{	1463	{
1529	if (check_move_on (op, originator))	1464	if (check_move_on (op, originator))
1530	return NULL;	1465	return 0;
1531		1466
1532	/* If we are a multi part object, lets work our way through the check	1467	/* If we are a multi part object, lets work our way through the check
1533	* walk on's.	1468	* walk on's.
1534	*/	1469	*/
1535	for (tmp = op->more; tmp != NULL; tmp = tmp->more)	1470	for (object *tmp = op->more; tmp; tmp = tmp->more)
1536	if (check_move_on (tmp, originator))	1471	if (check_move_on (tmp, originator))
1537	return NULL;	1472	return 0;
1538	}	1473	}
1539		1474
1540	return op;	1475	return op;
1541	}	1476	}
1542		1477
1543	/* this function inserts an object in the map, but if it	1478	/* this function inserts an object in the map, but if it
1544	* finds an object of its own type, it'll remove that one first.	1479	* finds an object of its own type, it'll remove that one first.
1545	* op is the object to insert it under: supplies x and the map.	1480	* op is the object to insert it under: supplies x and the map.
1546	*/	1481	*/
1547	void	1482	void
1548	replace_insert_ob_in_map (const char *arch_string, object *op)	1483	replace_insert_ob_in_map (const char *arch_string, object *op)
1549	{	1484	{
1550	object *
1551	tmp;
1552	object *
1553	tmp1;
1554
1555	/* first search for itself and remove any old instances */	1485	/* first search for itself and remove any old instances */
1556		1486
1557	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)	1487	for (object *tmp = op->ms ().bot; tmp; tmp = tmp->above)
1558	{
1559	if (!strcmp (tmp->arch->name, arch_string)) /* same archetype */	1488	if (!strcmp (tmp->arch->archname, arch_string)) /* same archetype */
1560	{	1489	tmp->destroy (1);
1561	remove_ob (tmp);
1562	free_object (tmp);
1563	}
1564	}
1565		1490
1566	tmp1 = arch_to_object (archetype::find (arch_string));	1491	object *tmp = arch_to_object (archetype::find (arch_string));
1567		1492
1568	tmp1->x = op->x;	1493	tmp->x = op->x;
1569	tmp1->y = op->y;	1494	tmp->y = op->y;
		1495
1570	insert_ob_in_map (tmp1, op->map, op, 0);	1496	insert_ob_in_map (tmp, op->map, op, 0);
1571	}	1497	}
1572
1573	/*
1574	* get_split_ob(ob,nr) splits up ob into two parts. The part which
1575	* is returned contains nr objects, and the remaining parts contains
1576	* the rest (or is removed and freed if that number is 0).
1577	* On failure, NULL is returned, and the reason put into the
1578	* global static errmsg array.
1579	*/
1580		1498
1581	object *	1499	object *
1582	get_split_ob (object *orig_ob, uint32 nr)	1500	object::insert_at (object *where, object *originator, int flags)
1583	{	1501	{
1584	object *	1502	if (where->env)
1585	newob;	1503	return where->env->insert (this);
1586	int	1504	else
1587	is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);	1505	return where->map->insert (this, where->x, where->y, originator, flags);
1588
1589	if (orig_ob->nrof < nr)
1590	{
1591	sprintf (errmsg, "There are only %d %ss.", orig_ob->nrof ? orig_ob->nrof : 1, &orig_ob->name);
1592	return NULL;
1593	}
1594
1595	newob = object_create_clone (orig_ob);
1596
1597	if ((orig_ob->nrof -= nr) < 1)
1598	{
1599	if (!is_removed)
1600	remove_ob (orig_ob);
1601	free_object2 (orig_ob, 1);
1602	}
1603	else if (!is_removed)
1604	{
1605	if (orig_ob->env != NULL)
1606	sub_weight (orig_ob->env, orig_ob->weight * nr);
1607	if (orig_ob->env == NULL && orig_ob->map->in_memory != MAP_IN_MEMORY)
1608	{
1609	strcpy (errmsg, "Tried to split object whose map is not in memory.");
1610	LOG (llevDebug, "Error, Tried to split object whose map is not in memory.\n");
1611	return NULL;
1612	}
1613	}
1614
1615	newob->nrof = nr;
1616
1617	return newob;
1618	}	1506	}
1619		1507
1620	/*	1508	/*
1621	* decrease_ob_nr(object, number) decreases a specified number from	1509	* decrease(object, number) decreases a specified number from
1622	* the amount of an object. If the amount reaches 0, the object	1510	* the amount of an object. If the amount reaches 0, the object
1623	* is subsequently removed and freed.	1511	* is subsequently removed and freed.
1624	*	1512	*
1625	* Return value: 'op' if something is left, NULL if the amount reached 0	1513	* Return value: 'op' if something is left, NULL if the amount reached 0
1626	*/	1514	*/
		1515	bool
		1516	object::decrease (sint32 nr)
		1517	{
		1518	if (!nr)
		1519	return true;
1627		1520
		1521	nr = min (nr, nrof);
		1522
		1523	nrof -= nr;
		1524
		1525	if (nrof)
		1526	{
		1527	adjust_weight (env, -weight * nr); // carrying == 0
		1528
		1529	if (object *pl = visible_to ())
		1530	esrv_update_item (UPD_NROF, pl, this);
		1531
		1532	return true;
		1533	}
		1534	else
		1535	{
		1536	destroy (1);
		1537	return false;
		1538	}
		1539	}
		1540
		1541	/*
		1542	* split(ob,nr) splits up ob into two parts. The part which
		1543	* is returned contains nr objects, and the remaining parts contains
		1544	* the rest (or is removed and returned if that number is 0).
		1545	* On failure, NULL is returned.
		1546	*/
1628	object *	1547	object *
1629	decrease_ob_nr (object *op, uint32 i)	1548	object::split (sint32 nr)
1630	{	1549	{
1631	object *tmp;	1550	int have = number_of ();
1632	player *pl;
1633		1551
1634	if (i == 0) /* objects with op->nrof require this check */	1552	if (have < nr)
1635	return op;	1553	return 0;
1636		1554	else if (have == nr)
1637	if (i > op->nrof)
1638	i = op->nrof;
1639
1640	if (QUERY_FLAG (op, FLAG_REMOVED))
1641	op->nrof -= i;
1642	else if (op->env != NULL)
1643	{	1555	{
1644	/* is this object in the players inventory, or sub container
1645	* therein?
1646	*/
1647	tmp = is_player_inv (op->env);
1648	/* nope. Is this a container the player has opened?
1649	* If so, set tmp to that player.
1650	* IMO, searching through all the players will mostly
1651	* likely be quicker than following op->env to the map,
1652	* and then searching the map for a player.
1653	*/
1654	if (!tmp)
1655	{
1656	for (pl = first_player; pl; pl = pl->next)
1657	if (pl->ob->container == op->env)
1658	break;
1659	if (pl)
1660	tmp = pl->ob;
1661	else
1662	tmp = NULL;
1663	}
1664
1665	if (i < op->nrof)
1666	{
1667	sub_weight (op->env, op->weight * i);
1668	op->nrof -= i;
1669	if (tmp)
1670	{
1671	esrv_send_item (tmp, op);
1672	}
1673	}
1674	else
1675	{
1676	remove_ob (op);	1556	remove ();
1677	op->nrof = 0;	1557	return this;
1678	if (tmp)
1679	{
1680	esrv_del_item (tmp->contr, op->count);
1681	}
1682	}
1683	}	1558	}
1684	else	1559	else
1685	{	1560	{
1686	object *above = op->above;	1561	decrease (nr);
1687		1562
1688	if (i < op->nrof)	1563	object *op = deep_clone ();
1689	op->nrof -= i;	1564	op->nrof = nr;
1690	else
1691	{
1692	remove_ob (op);
1693	op->nrof = 0;
1694	}
1695
1696	/* Since we just removed op, op->above is null */
1697	for (tmp = above; tmp != NULL; tmp = tmp->above)
1698	if (tmp->type == PLAYER)
1699	{
1700	if (op->nrof)
1701	esrv_send_item (tmp, op);
1702	else
1703	esrv_del_item (tmp->contr, op->count);
1704	}
1705	}
1706
1707	if (op->nrof)
1708	return op;	1565	return op;
1709	else
1710	{	1566	}
1711	free_object (op);
1712	return NULL;
1713	}
1714	}	1567	}
1715
1716	/*
1717	* add_weight(object, weight) adds the specified weight to an object,
1718	* and also updates how much the environment(s) is/are carrying.
1719	*/
1720
1721	void
1722	add_weight (object *op, signed long weight)
1723	{
1724	while (op != NULL)
1725	{
1726	if (op->type == CONTAINER)
1727	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1728
1729	op->carrying += weight;
1730	op = op->env;
1731	}
1732	}
1733
1734	/*
1735	* insert_ob_in_ob(op,environment):
1736	* This function inserts the object op in the linked list
1737	* inside the object environment.
1738	*
1739	* Eneq(@csd.uu.se): Altered insert_ob_in_ob to make things picked up enter
1740	* the inventory at the last position or next to other objects of the same
1741	* type.
1742	* Frank: Now sorted by type, archetype and magic!
1743	*
1744	* The function returns now pointer to inserted item, and return value can
1745	* be != op, if items are merged. -Tero
1746	*/
1747		1568
1748	object *	1569	object *
1749	insert_ob_in_ob (object *op, object *where)	1570	insert_ob_in_ob (object *op, object *where)
1750	{	1571	{
1751	object *	1572	if (!where)
1752	tmp, *
1753	otmp;
1754
1755	if (!QUERY_FLAG (op, FLAG_REMOVED))
1756	{
1757	char *dump = dump_object (op);
1758	LOG (llevError, "Trying to insert (ob) inserted object.\n%s\n", dump);
1759	free (dump);
1760	return op;
1761	}
1762
1763	if (where == NULL)
1764	{	1573	{
1765	char *dump = dump_object (op);	1574	char *dump = dump_object (op);
1766	LOG (llevError, "Trying to put object in NULL.\n%s\n", dump);	1575	LOG (llevError, "Trying to put object in NULL.\n%s\n", dump);
1767	free (dump);	1576	free (dump);
1768	return op;	1577	return op;
1769	}	1578	}
1770		1579
1771	if (where->head)	1580	if (where->head_ () != where)
1772	{	1581	{
1773	LOG (llevDebug, "Warning: Tried to insert object wrong part of multipart object.\n");	1582	LOG (llevError | logBacktrace, "Warning: Tried to insert object into wrong part of multipart object.\n");
1774	where = where->head;	1583	where = where->head;
1775	}	1584	}
1776		1585
		1586	return where->insert (op);
		1587	}
		1588
		1589	/*
		1590	* env->insert (op)
		1591	* This function inserts the object op in the linked list
		1592	* inside the object environment.
		1593	*
		1594	* The function returns now pointer to inserted item, and return value can
		1595	* be != op, if items are merged. -Tero
		1596	*/
		1597	object *
		1598	object::insert (object *op)
		1599	{
1777	if (op->more)	1600	if (op->more)
1778	{	1601	{
1779	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);	1602	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);
1780	return op;	1603	return op;
1781	}	1604	}
1782		1605
1783	CLEAR_FLAG (op, FLAG_OBJ_ORIGINAL);	1606	op->remove ();
1784	CLEAR_FLAG (op, FLAG_REMOVED);	1607
		1608	op->flag [FLAG_OBJ_ORIGINAL] = 0;
		1609
1785	if (op->nrof)	1610	if (op->nrof)
1786	{
1787	for (tmp = where->inv; tmp != NULL; tmp = tmp->below)	1611	for (object *tmp = inv; tmp; tmp = tmp->below)
1788	if (CAN_MERGE (tmp, op))	1612	if (object::can_merge (tmp, op))
1789	{	1613	{
1790	/* return the original object and remove inserted object	1614	/* return the original object and remove inserted object
1791	(client needs the original object) */	1615	(client needs the original object) */
1792	tmp->nrof += op->nrof;	1616	tmp->nrof += op->nrof;
1793	/* Weight handling gets pretty funky. Since we are adding to	1617
1794	* tmp->nrof, we need to increase the weight.	1618	if (object *pl = tmp->visible_to ())
1795	*/	1619	esrv_update_item (UPD_NROF, pl, tmp);
1796	add_weight (where, op->weight * op->nrof);	1620
1797	SET_FLAG (op, FLAG_REMOVED);	1621	adjust_weight (this, op->total_weight ());
1798	free_object (op); /* free the inserted object */	1622
		1623	op->destroy (1);
1799	op = tmp;	1624	op = tmp;
1800	remove_ob (op); /* and fix old object's links */	1625	goto inserted;
1801	CLEAR_FLAG (op, FLAG_REMOVED);
1802	break;
1803	}	1626	}
1804		1627
1805	/* I assume combined objects have no inventory	1628	op->owner = 0; // it's his/hers now. period.
1806	* We add the weight - this object could have just been removed
1807	* (if it was possible to merge). calling remove_ob will subtract
1808	* the weight, so we need to add it in again, since we actually do
1809	* the linking below
1810	*/
1811	add_weight (where, op->weight * op->nrof);
1812	}
1813	else
1814	add_weight (where, (op->weight + op->carrying));
1815
1816	otmp = is_player_inv (where);
1817	if (otmp && otmp->contr != NULL)
1818	{
1819	if (!QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1820	fix_player (otmp);
1821	}
1822
1823	op->map = NULL;	1629	op->map = 0;
1824	op->env = where;	1630	op->x = 0;
		1631	op->y = 0;
		1632
1825	op->above = NULL;	1633	op->above = 0;
1826	op->below = NULL;	1634	op->below = inv;
1827	op->x = 0, op->y = 0;	1635	op->env = this;
1828		1636
		1637	if (inv)
		1638	inv->above = op;
		1639
		1640	inv = op;
		1641
		1642	op->flag [FLAG_REMOVED] = 0;
		1643
		1644	if (object *pl = op->visible_to ())
		1645	esrv_send_item (pl, op);
		1646
		1647	adjust_weight (this, op->total_weight ());
		1648
		1649	inserted:
1829	/* reset the light list and los of the players on the map */	1650	/* reset the light list and los of the players on the map */
1830	if ((op->glow_radius != 0) && where->map)	1651	if (op->glow_radius && map && map->darkness)
1831	{	1652	update_all_los (map, x, y);
1832	#ifdef DEBUG_LIGHTS
1833	LOG (llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n", op->name);
1834	#endif /* DEBUG_LIGHTS */
1835	if (MAP_DARKNESS (where->map))
1836	update_all_los (where->map, where->x, where->y);
1837	}
1838		1653
1839	/* Client has no idea of ordering so lets not bother ordering it here.	1654	// if this is a player's inventory, update stats
1840	* It sure simplifies this function...	1655	if (type == PLAYER && !flag [FLAG_NO_FIX_PLAYER])
1841	*/	1656	update_stats ();
1842	if (where->inv == NULL)	1657
1843	where->inv = op;	1658	INVOKE_OBJECT (INSERT, this);
1844	else	1659
1845	{
1846	op->below = where->inv;
1847	op->below->above = op;
1848	where->inv = op;
1849	}
1850	return op;	1660	return op;
1851	}	1661	}
1852		1662
1853	/*	1663	/*
1854	* Checks if any objects has a move_type that matches objects	1664	* Checks if any objects has a move_type that matches objects
…		…
1868	*	1678	*
1869	* MSW 2001-07-08: Check all objects on space, not just those below	1679	* MSW 2001-07-08: Check all objects on space, not just those below
1870	* object being inserted. insert_ob_in_map may not put new objects	1680	* object being inserted. insert_ob_in_map may not put new objects
1871	* on top.	1681	* on top.
1872	*/	1682	*/
1873
1874	int	1683	int
1875	check_move_on (object *op, object *originator)	1684	check_move_on (object *op, object *originator)
1876	{	1685	{
1877	object *tmp;	1686	object *tmp;
1878	maptile *m = op->map;	1687	maptile *m = op->map;
…		…
1905		1714
1906	/* The objects have to be checked from top to bottom.	1715	/* The objects have to be checked from top to bottom.
1907	* Hence, we first go to the top:	1716	* Hence, we first go to the top:
1908	*/	1717	*/
1909		1718
1910	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL && tmp->above != NULL; tmp = tmp->above)	1719	for (tmp = op->ms ().bot; tmp && tmp->above; tmp = tmp->above)
1911	{	1720	{
1912	/* Trim the search when we find the first other spell effect	1721	/* Trim the search when we find the first other spell effect
1913	* this helps performance so that if a space has 50 spell objects,	1722	* this helps performance so that if a space has 50 spell objects,
1914	* we don't need to check all of them.	1723	* we don't need to check all of them.
1915	*/	1724	*/
…		…
1933	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||	1742	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||
1934	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))	1743	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))
1935	{	1744	{
1936		1745
1937	float	1746	float
1938	diff = tmp->move_slow_penalty * FABS (op->speed);	1747	diff = tmp->move_slow_penalty * fabs (op->speed);
1939		1748
1940	if (op->type == PLAYER)	1749	if (op->type == PLAYER)
1941	if ((QUERY_FLAG (tmp, FLAG_IS_HILLY) && find_skill_by_number (op, SK_CLIMBING)) ||	1750	if ((QUERY_FLAG (tmp, FLAG_IS_HILLY) && find_skill_by_number (op, SK_CLIMBING)) ||
1942	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))	1751	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))
1943	diff /= 4.0;	1752	diff /= 4.0;
…		…
1970	/*	1779	/*
1971	* present_arch(arch, map, x, y) searches for any objects with	1780	* present_arch(arch, map, x, y) searches for any objects with
1972	* a matching archetype at the given map and coordinates.	1781	* a matching archetype at the given map and coordinates.
1973	* The first matching object is returned, or NULL if none.	1782	* The first matching object is returned, or NULL if none.
1974	*/	1783	*/
1975
1976	object *	1784	object *
1977	present_arch (const archetype *at, maptile *m, int x, int y)	1785	present_arch (const archetype *at, maptile *m, int x, int y)
1978	{	1786	{
1979	object *
1980	tmp;
1981
1982	if (m == NULL || out_of_map (m, x, y))	1787	if (!m || out_of_map (m, x, y))
1983	{	1788	{
1984	LOG (llevError, "Present_arch called outside map.\n");	1789	LOG (llevError, "Present_arch called outside map.\n");
1985	return NULL;	1790	return NULL;
1986	}	1791	}
1987	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)	1792
1988	if (tmp->arch == at)	1793	for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)
		1794	if (tmp->arch->archname == at->archname)
1989	return tmp;	1795	return tmp;
		1796
1990	return NULL;	1797	return NULL;
1991	}	1798	}
1992		1799
1993	/*	1800	/*
1994	* present(type, map, x, y) searches for any objects with	1801	* present(type, map, x, y) searches for any objects with
1995	* a matching type variable at the given map and coordinates.	1802	* a matching type variable at the given map and coordinates.
1996	* The first matching object is returned, or NULL if none.	1803	* The first matching object is returned, or NULL if none.
1997	*/	1804	*/
1998
1999	object *	1805	object *
2000	present (unsigned char type, maptile *m, int x, int y)	1806	present (unsigned char type, maptile *m, int x, int y)
2001	{	1807	{
2002	object *
2003	tmp;
2004
2005	if (out_of_map (m, x, y))	1808	if (out_of_map (m, x, y))
2006	{	1809	{
2007	LOG (llevError, "Present called outside map.\n");	1810	LOG (llevError, "Present called outside map.\n");
2008	return NULL;	1811	return NULL;
2009	}	1812	}
2010	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)	1813
		1814	for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)
2011	if (tmp->type == type)	1815	if (tmp->type == type)
2012	return tmp;	1816	return tmp;
		1817
2013	return NULL;	1818	return NULL;
2014	}	1819	}
2015		1820
2016	/*	1821	/*
2017	* present_in_ob(type, object) searches for any objects with	1822	* present_in_ob(type, object) searches for any objects with
2018	* a matching type variable in the inventory of the given object.	1823	* a matching type variable in the inventory of the given object.
2019	* The first matching object is returned, or NULL if none.	1824	* The first matching object is returned, or NULL if none.
2020	*/	1825	*/
2021
2022	object *	1826	object *
2023	present_in_ob (unsigned char type, const object *op)	1827	present_in_ob (unsigned char type, const object *op)
2024	{	1828	{
2025	object *
2026	tmp;
2027
2028	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1829	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
2029	if (tmp->type == type)	1830	if (tmp->type == type)
2030	return tmp;	1831	return tmp;
		1832
2031	return NULL;	1833	return NULL;
2032	}	1834	}
2033		1835
2034	/*	1836	/*
2035	* present_in_ob (type, str, object) searches for any objects with	1837	* present_in_ob (type, str, object) searches for any objects with
…		…
2043	* str is the string to match against. Note that we match against	1845	* str is the string to match against. Note that we match against
2044	* the object name, not the archetype name. this is so that the	1846	* the object name, not the archetype name. this is so that the
2045	* spell code can use one object type (force), but change it's name	1847	* spell code can use one object type (force), but change it's name
2046	* to be unique.	1848	* to be unique.
2047	*/	1849	*/
2048
2049	object *	1850	object *
2050	present_in_ob_by_name (int type, const char *str, const object *op)	1851	present_in_ob_by_name (int type, const char *str, const object *op)
2051	{	1852	{
2052	object *
2053	tmp;
2054
2055	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1853	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2056	{
2057	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))	1854	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))
2058	return tmp;	1855	return tmp;
2059	}	1856
2060	return NULL;	1857	return 0;
2061	}	1858	}
2062		1859
2063	/*	1860	/*
2064	* present_arch_in_ob(archetype, object) searches for any objects with	1861	* present_arch_in_ob(archetype, object) searches for any objects with
2065	* a matching archetype in the inventory of the given object.	1862	* a matching archetype in the inventory of the given object.
2066	* The first matching object is returned, or NULL if none.	1863	* The first matching object is returned, or NULL if none.
2067	*/	1864	*/
2068
2069	object *	1865	object *
2070	present_arch_in_ob (const archetype *at, const object *op)	1866	present_arch_in_ob (const archetype *at, const object *op)
2071	{	1867	{
2072	object *
2073	tmp;
2074
2075	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1868	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2076	if (tmp->arch == at)	1869	if (tmp->arch->archname == at->archname)
2077	return tmp;	1870	return tmp;
		1871
2078	return NULL;	1872	return NULL;
2079	}	1873	}
2080		1874
2081	/*	1875	/*
2082	* activate recursively a flag on an object inventory	1876	* activate recursively a flag on an object inventory
2083	*/	1877	*/
2084	void	1878	void
2085	flag_inv (object *op, int flag)	1879	flag_inv (object *op, int flag)
2086	{	1880	{
2087	object *
2088	tmp;
2089
2090	if (op->inv)
2091	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1881	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2092	{	1882	{
2093	SET_FLAG (tmp, flag);	1883	SET_FLAG (tmp, flag);
2094	flag_inv (tmp, flag);	1884	flag_inv (tmp, flag);
2095	}	1885	}
2096	} /*	1886	}
		1887
		1888	/*
2097	* desactivate recursively a flag on an object inventory	1889	* deactivate recursively a flag on an object inventory
2098	*/	1890	*/
2099	void	1891	void
2100	unflag_inv (object *op, int flag)	1892	unflag_inv (object *op, int flag)
2101	{	1893	{
2102	object *
2103	tmp;
2104
2105	if (op->inv)
2106	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1894	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2107	{	1895	{
2108	CLEAR_FLAG (tmp, flag);	1896	CLEAR_FLAG (tmp, flag);
2109	unflag_inv (tmp, flag);	1897	unflag_inv (tmp, flag);
2110	}	1898	}
2111	}
2112
2113	/*
2114	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in
2115	* all it's inventory (recursively).
2116	* If checksums are used, a player will get set_cheat called for
2117	* him/her-self and all object carried by a call to this function.
2118	*/
2119
2120	void
2121	set_cheat (object *op)
2122	{
2123	SET_FLAG (op, FLAG_WAS_WIZ);
2124	flag_inv (op, FLAG_WAS_WIZ);
2125	}	1899	}
2126		1900
2127	/*	1901	/*
2128	* find_free_spot(object, map, x, y, start, stop) will search for	1902	* find_free_spot(object, map, x, y, start, stop) will search for
2129	* a spot at the given map and coordinates which will be able to contain	1903	* a spot at the given map and coordinates which will be able to contain
…		…
2131	* to search (see the freearr_x/y[] definition).	1905	* to search (see the freearr_x/y[] definition).
2132	* It returns a random choice among the alternatives found.	1906	* It returns a random choice among the alternatives found.
2133	* start and stop are where to start relative to the free_arr array (1,9	1907	* start and stop are where to start relative to the free_arr array (1,9
2134	* does all 4 immediate directions). This returns the index into the	1908	* does all 4 immediate directions). This returns the index into the
2135	* array of the free spot, -1 if no spot available (dir 0 = x,y)	1909	* array of the free spot, -1 if no spot available (dir 0 = x,y)
2136	* Note - this only checks to see if there is space for the head of the
2137	* object - if it is a multispace object, this should be called for all
2138	* pieces.
2139	* Note2: This function does correctly handle tiled maps, but does not	1910	* Note: This function does correctly handle tiled maps, but does not
2140	* inform the caller. However, insert_ob_in_map will update as	1911	* inform the caller. However, insert_ob_in_map will update as
2141	* necessary, so the caller shouldn't need to do any special work.	1912	* necessary, so the caller shouldn't need to do any special work.
2142	* Note - updated to take an object instead of archetype - this is necessary	1913	* Note - updated to take an object instead of archetype - this is necessary
2143	* because arch_blocked (now ob_blocked) needs to know the movement type	1914	* because arch_blocked (now ob_blocked) needs to know the movement type
2144	* to know if the space in question will block the object. We can't use	1915	* to know if the space in question will block the object. We can't use
2145	* the archetype because that isn't correct if the monster has been	1916	* the archetype because that isn't correct if the monster has been
2146	* customized, changed states, etc.	1917	* customized, changed states, etc.
2147	*/	1918	*/
2148
2149	int	1919	int
2150	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)	1920	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)
2151	{	1921	{
2152	int
2153	i,
2154	index = 0, flag;
2155	static int
2156	altern[SIZEOFFREE];	1922	int altern[SIZEOFFREE];
		1923	int index = 0, flag;
2157		1924
2158	for (i = start; i < stop; i++)	1925	for (int i = start; i < stop; i++)
2159	{	1926	{
2160	flag = ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]);	1927	mapxy pos (m, x, y); pos.move (i);
2161	if (!flag)	1928
		1929	if (!pos.normalise ())
		1930	continue;
		1931
		1932	mapspace &ms = *pos;
		1933
		1934	if (ms.flags () & P_IS_ALIVE)
		1935	continue;
		1936
		1937	/* However, often
		1938	* ob doesn't have any move type (when used to place exits)
		1939	* so the AND operation in OB_TYPE_MOVE_BLOCK doesn't work.
		1940	*/
		1941	if (ob && ob->move_type == 0 && ms.move_block != MOVE_ALL)
		1942	{
2162	altern[index++] = i;	1943	altern [index++] = i;
		1944	continue;
		1945	}
2163		1946
2164	/* Basically, if we find a wall on a space, we cut down the search size.	1947	/* Basically, if we find a wall on a space, we cut down the search size.
2165	* In this way, we won't return spaces that are on another side of a wall.	1948	* In this way, we won't return spaces that are on another side of a wall.
2166	* This mostly work, but it cuts down the search size in all directions -	1949	* This mostly work, but it cuts down the search size in all directions -
2167	* if the space being examined only has a wall to the north and empty	1950	* if the space being examined only has a wall to the north and empty
2168	* spaces in all the other directions, this will reduce the search space	1951	* spaces in all the other directions, this will reduce the search space
2169	* to only the spaces immediately surrounding the target area, and	1952	* to only the spaces immediately surrounding the target area, and
2170	* won't look 2 spaces south of the target space.	1953	* won't look 2 spaces south of the target space.
2171	*/	1954	*/
2172	else if ((flag & AB_NO_PASS) && maxfree[i] < stop)	1955	if (ms.move_block == MOVE_ALL && maxfree[i] < stop)
		1956	{
2173	stop = maxfree[i];	1957	stop = maxfree[i];
		1958	continue;
		1959	}
		1960
		1961	/* Note it is intentional that we check ob - the movement type of the
		1962	* head of the object should correspond for the entire object.
		1963	*/
		1964	if (OB_TYPE_MOVE_BLOCK (ob, ms.move_block))
		1965	continue;
		1966
		1967	if (ob->blocked (m, pos.x, pos.y))
		1968	continue;
		1969
		1970	altern [index++] = i;
2174	}	1971	}
		1972
2175	if (!index)	1973	if (!index)
2176	return -1;	1974	return -1;
		1975
2177	return altern[RANDOM () % index];	1976	return altern [rndm (index)];
2178	}	1977	}
2179		1978
2180	/*	1979	/*
2181	* find_first_free_spot(archetype, maptile, x, y) works like	1980	* find_first_free_spot(archetype, maptile, x, y) works like
2182	* find_free_spot(), but it will search max number of squares.	1981	* find_free_spot(), but it will search max number of squares.
2183	* But it will return the first available spot, not a random choice.	1982	* But it will return the first available spot, not a random choice.
2184	* Changed 0.93.2: Have it return -1 if there is no free spot available.	1983	* Changed 0.93.2: Have it return -1 if there is no free spot available.
2185	*/	1984	*/
2186
2187	int	1985	int
2188	find_first_free_spot (const object *ob, maptile *m, int x, int y)	1986	find_first_free_spot (const object *ob, maptile *m, int x, int y)
2189	{	1987	{
2190	int
2191	i;
2192
2193	for (i = 0; i < SIZEOFFREE; i++)	1988	for (int i = 0; i < SIZEOFFREE; i++)
2194	{
2195	if (!ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]))	1989	if (!ob->blocked (m, x + freearr_x[i], y + freearr_y[i]))
2196	return i;	1990	return i;
2197	}	1991
2198	return -1;	1992	return -1;
2199	}	1993	}
2200		1994
2201	/*	1995	/*
2202	* The function permute(arr, begin, end) randomly reorders the array	1996	* The function permute(arr, begin, end) randomly reorders the array
2203	* arr[begin..end-1].	1997	* arr[begin..end-1].
		1998	* now uses a fisher-yates shuffle, old permute was broken
2204	*/	1999	*/
2205	static void	2000	static void
2206	permute (int *arr, int begin, int end)	2001	permute (int *arr, int begin, int end)
2207	{	2002	{
2208	int	2003	arr += begin;
2209	i,
2210	j,
2211	tmp,
2212	len;
2213
2214	len = end - begin;	2004	end -= begin;
2215	for (i = begin; i < end; i++)
2216	{
2217	j = begin + RANDOM () % len;
2218		2005
2219	tmp = arr[i];	2006	while (--end)
2220	arr[i] = arr[j];	2007	swap (arr [end], arr [rndm (end + 1)]);
2221	arr[j] = tmp;
2222	}
2223	}	2008	}
2224		2009
2225	/* new function to make monster searching more efficient, and effective!	2010	/* new function to make monster searching more efficient, and effective!
2226	* This basically returns a randomized array (in the passed pointer) of	2011	* This basically returns a randomized array (in the passed pointer) of
2227	* the spaces to find monsters. In this way, it won't always look for	2012	* the spaces to find monsters. In this way, it won't always look for
…		…
2230	* the 3x3 area will be searched, just not in a predictable order.	2015	* the 3x3 area will be searched, just not in a predictable order.
2231	*/	2016	*/
2232	void	2017	void
2233	get_search_arr (int *search_arr)	2018	get_search_arr (int *search_arr)
2234	{	2019	{
2235	int	2020	int i;
2236	i;
2237		2021
2238	for (i = 0; i < SIZEOFFREE; i++)	2022	for (i = 0; i < SIZEOFFREE; i++)
2239	{
2240	search_arr[i] = i;	2023	search_arr[i] = i;
2241	}
2242		2024
2243	permute (search_arr, 1, SIZEOFFREE1 + 1);	2025	permute (search_arr, 1, SIZEOFFREE1 + 1);
2244	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);	2026	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);
2245	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);	2027	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);
2246	}	2028	}
…		…
2255	* Perhaps incorrectly, but I'm making the assumption that exclude	2037	* Perhaps incorrectly, but I'm making the assumption that exclude
2256	* is actually want is going to try and move there. We need this info	2038	* is actually want is going to try and move there. We need this info
2257	* because we have to know what movement the thing looking to move	2039	* because we have to know what movement the thing looking to move
2258	* there is capable of.	2040	* there is capable of.
2259	*/	2041	*/
2260
2261	int	2042	int
2262	find_dir (maptile *m, int x, int y, object *exclude)	2043	find_dir (maptile *m, int x, int y, object *exclude)
2263	{	2044	{
2264	int
2265	i,
2266	max = SIZEOFFREE, mflags;	2045	int i, max = SIZEOFFREE, mflags;
2267		2046
2268	sint16 nx, ny;	2047	sint16 nx, ny;
2269	object *	2048	object *tmp;
2270	tmp;
2271	maptile *	2049	maptile *mp;
2272	mp;
2273		2050
2274	MoveType blocked, move_type;	2051	MoveType blocked, move_type;
2275		2052
2276	if (exclude && exclude->head)	2053	if (exclude && exclude->head_ () != exclude)
2277	{	2054	{
2278	exclude = exclude->head;	2055	exclude = exclude->head;
2279	move_type = exclude->move_type;	2056	move_type = exclude->move_type;
2280	}	2057	}
2281	else	2058	else
…		…
2289	mp = m;	2066	mp = m;
2290	nx = x + freearr_x[i];	2067	nx = x + freearr_x[i];
2291	ny = y + freearr_y[i];	2068	ny = y + freearr_y[i];
2292		2069
2293	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);	2070	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);
		2071
2294	if (mflags & P_OUT_OF_MAP)	2072	if (mflags & P_OUT_OF_MAP)
2295	{
2296	max = maxfree[i];	2073	max = maxfree[i];
2297	}
2298	else	2074	else
2299	{	2075	{
2300	blocked = GET_MAP_MOVE_BLOCK (mp, nx, ny);	2076	mapspace &ms = mp->at (nx, ny);
		2077
		2078	blocked = ms.move_block;
2301		2079
2302	if ((move_type & blocked) == move_type)	2080	if ((move_type & blocked) == move_type)
2303	{
2304	max = maxfree[i];	2081	max = maxfree[i];
2305	}
2306	else if (mflags & P_IS_ALIVE)	2082	else if (mflags & P_IS_ALIVE)
2307	{	2083	{
2308	for (tmp = GET_MAP_OB (mp, nx, ny); tmp != NULL; tmp = tmp->above)	2084	for (tmp = ms.bot; tmp; tmp = tmp->above)
2309	{	2085	if ((tmp->flag [FLAG_MONSTER] || tmp->type == PLAYER)
2310	if ((QUERY_FLAG (tmp, FLAG_MONSTER) || tmp->type == PLAYER) && (tmp != exclude || (tmp->head && tmp->head != exclude)))	2086	&& (tmp != exclude || (tmp->head_ () != tmp && tmp->head_ () != exclude)))
2311	{
2312	break;	2087	break;
2313	}	2088
2314	}
2315	if (tmp)	2089	if (tmp)
2316	{
2317	return freedir[i];	2090	return freedir[i];
2318	}
2319	}	2091	}
2320	}	2092	}
2321	}	2093	}
		2094
2322	return 0;	2095	return 0;
2323	}	2096	}
2324		2097
2325	/*	2098	/*
2326	* distance(object 1, object 2) will return the square of the	2099	* distance(object 1, object 2) will return the square of the
2327	* distance between the two given objects.	2100	* distance between the two given objects.
2328	*/	2101	*/
2329
2330	int	2102	int
2331	distance (const object *ob1, const object *ob2)	2103	distance (const object *ob1, const object *ob2)
2332	{	2104	{
2333	int
2334	i;
2335
2336	i = (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);	2105	return (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);
2337	return i;
2338	}	2106	}
2339		2107
2340	/*	2108	/*
2341	* find_dir_2(delta-x,delta-y) will return a direction in which	2109	* find_dir_2(delta-x,delta-y) will return a direction in which
2342	* an object which has subtracted the x and y coordinates of another	2110	* an object which has subtracted the x and y coordinates of another
2343	* object, needs to travel toward it.	2111	* object, needs to travel toward it.
2344	*/	2112	*/
2345
2346	int	2113	int
2347	find_dir_2 (int x, int y)	2114	find_dir_2 (int x, int y)
2348	{	2115	{
2349	int	2116	int q;
2350	q;
2351		2117
2352	if (y)	2118	if (y)
2353	q = x * 100 / y;	2119	q = x * 100 / y;
2354	else if (x)	2120	else if (x)
2355	q = -300 * x;	2121	q = -300 * x;
…		…
2380		2146
2381	return 3;	2147	return 3;
2382	}	2148	}
2383		2149
2384	/*	2150	/*
2385	* absdir(int): Returns a number between 1 and 8, which represent
2386	* the "absolute" direction of a number (it actually takes care of
2387	* "overflow" in previous calculations of a direction).
2388	*/
2389
2390	int
2391	absdir (int d)
2392	{
2393	while (d < 1)
2394	d += 8;
2395	while (d > 8)
2396	d -= 8;
2397	return d;
2398	}
2399
2400	/*
2401	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is	2151	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is
2402	* between two directions (which are expected to be absolute (see absdir())	2152	* between two directions (which are expected to be absolute (see absdir())
2403	*/	2153	*/
2404
2405	int	2154	int
2406	dirdiff (int dir1, int dir2)	2155	dirdiff (int dir1, int dir2)
2407	{	2156	{
2408	int	2157	int d;
2409	d;
2410		2158
2411	d = abs (dir1 - dir2);	2159	d = abs (dir1 - dir2);
2412	if (d > 4)	2160	if (d > 4)
2413	d = 8 - d;	2161	d = 8 - d;
		2162
2414	return d;	2163	return d;
2415	}	2164	}
2416		2165
2417	/* peterm:	2166	/* peterm:
2418	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.	2167	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.
…		…
2421	* This basically means that if direction is 15, then it could either go	2170	* This basically means that if direction is 15, then it could either go
2422	* direction 4, 14, or 16 to get back to where we are.	2171	* direction 4, 14, or 16 to get back to where we are.
2423	* Moved from spell_util.c to object.c with the other related direction	2172	* Moved from spell_util.c to object.c with the other related direction
2424	* functions.	2173	* functions.
2425	*/	2174	*/
2426
2427	int
2428	reduction_dir[SIZEOFFREE][3] = {	2175	int reduction_dir[SIZEOFFREE][3] = {
2429	{0, 0, 0}, /* 0 */	2176	{0, 0, 0}, /* 0 */
2430	{0, 0, 0}, /* 1 */	2177	{0, 0, 0}, /* 1 */
2431	{0, 0, 0}, /* 2 */	2178	{0, 0, 0}, /* 2 */
2432	{0, 0, 0}, /* 3 */	2179	{0, 0, 0}, /* 3 */
2433	{0, 0, 0}, /* 4 */	2180	{0, 0, 0}, /* 4 */
…		…
2481	* find a path to that monster that we found. If not,	2228	* find a path to that monster that we found. If not,
2482	* we don't bother going toward it. Returns 1 if we	2229	* we don't bother going toward it. Returns 1 if we
2483	* can see a direct way to get it	2230	* can see a direct way to get it
2484	* Modified to be map tile aware -.MSW	2231	* Modified to be map tile aware -.MSW
2485	*/	2232	*/
2486
2487
2488	int	2233	int
2489	can_see_monsterP (maptile *m, int x, int y, int dir)	2234	can_see_monsterP (maptile *m, int x, int y, int dir)
2490	{	2235	{
2491	sint16 dx, dy;	2236	sint16 dx, dy;
2492	int
2493	mflags;	2237	int mflags;
2494		2238
2495	if (dir < 0)	2239	if (dir < 0)
2496	return 0; /* exit condition: invalid direction */	2240	return 0; /* exit condition: invalid direction */
2497		2241
2498	dx = x + freearr_x[dir];	2242	dx = x + freearr_x[dir];
…		…
2511	return 0;	2255	return 0;
2512		2256
2513	/* yes, can see. */	2257	/* yes, can see. */
2514	if (dir < 9)	2258	if (dir < 9)
2515	return 1;	2259	return 1;
		2260
2516	return can_see_monsterP (m, x, y, reduction_dir[dir][0]) |	2261	return can_see_monsterP (m, x, y, reduction_dir[dir][0])
2517	can_see_monsterP (m, x, y, reduction_dir[dir][1]) | can_see_monsterP (m, x, y, reduction_dir[dir][2]);	2262	| can_see_monsterP (m, x, y, reduction_dir[dir][1])
		2263	| can_see_monsterP (m, x, y, reduction_dir[dir][2]);
2518	}	2264	}
2519
2520
2521		2265
2522	/*	2266	/*
2523	* can_pick(picker, item): finds out if an object is possible to be	2267	* can_pick(picker, item): finds out if an object is possible to be
2524	* picked up by the picker. Returnes 1 if it can be	2268	* picked up by the picker. Returnes 1 if it can be
2525	* picked up, otherwise 0.	2269	* picked up, otherwise 0.
…		…
2527	* Cf 0.91.3 - don't let WIZ's pick up anything - will likely cause	2271	* Cf 0.91.3 - don't let WIZ's pick up anything - will likely cause
2528	* core dumps if they do.	2272	* core dumps if they do.
2529	*	2273	*
2530	* Add a check so we can't pick up invisible objects (0.93.8)	2274	* Add a check so we can't pick up invisible objects (0.93.8)
2531	*/	2275	*/
2532
2533	int	2276	int
2534	can_pick (const object *who, const object *item)	2277	can_pick (const object *who, const object *item)
2535	{	2278	{
2536	return /*QUERY_FLAG(who,FLAG_WIZ)|| */	2279	return /*QUERY_FLAG(who,FLAG_WIZ)|| */
2537	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&	2280	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&
2538	!QUERY_FLAG (item, FLAG_ALIVE) && !item->invisible && (who->type == PLAYER || item->weight < who->weight / 3));	2281	!QUERY_FLAG (item, FLAG_ALIVE) && !item->invisible && (who->type == PLAYER || item->weight < who->weight / 3));
2539	}	2282	}
2540		2283
2541
2542	/*	2284	/*
2543	* create clone from object to another	2285	* create clone from object to another
2544	*/	2286	*/
2545	object *	2287	object *
2546	object_create_clone (object *asrc)	2288	object::deep_clone ()
2547	{	2289	{
2548	object *	2290	assert (("deep_clone called on non-head object", is_head ()));
2549	dst = NULL, *tmp, *src, *part, *prev, *item;
2550		2291
2551	if (!asrc)	2292	object *dst = clone ();
2552	return NULL;
2553	src = asrc;
2554	if (src->head)
2555	src = src->head;
2556		2293
2557	prev = NULL;	2294	object *prev = dst;
2558	for (part = src; part; part = part->more)	2295	for (object *part = this->more; part; part = part->more)
2559	{	2296	{
2560	tmp = get_object ();	2297	object *tmp = part->clone ();
2561	copy_object (part, tmp);
2562	tmp->x -= src->x;
2563	tmp->y -= src->y;
2564	if (!part->head)
2565	{
2566	dst = tmp;
2567	tmp->head = NULL;
2568	}
2569	else
2570	{
2571	tmp->head = dst;	2298	tmp->head = dst;
2572	}
2573	tmp->more = NULL;
2574	if (prev)
2575	prev->more = tmp;	2299	prev->more = tmp;
2576	prev = tmp;	2300	prev = tmp;
2577	}	2301	}
2578		2302
2579	for (item = src->inv; item; item = item->below)	2303	for (object *item = inv; item; item = item->below)
2580	insert_ob_in_ob (object_create_clone (item), dst);	2304	insert_ob_in_ob (item->deep_clone (), dst);
2581		2305
2582	return dst;	2306	return dst;
2583	}
2584
2585	/* GROS - Creates an object using a string representing its content. */
2586	/* Basically, we save the content of the string to a temp file, then call */
2587	/* load_object on it. I admit it is a highly inefficient way to make things, */
2588	/* but it was simple to make and allows reusing the load_object function. */
2589	/* Remember not to use load_object_str in a time-critical situation. */
2590	/* Also remember that multiparts objects are not supported for now. */
2591
2592	object *
2593	load_object_str (const char *obstr)
2594	{
2595	object *op;
2596	char filename[MAX_BUF];
2597
2598	sprintf (filename, "%s/cfloadobstr2044", settings.tmpdir);
2599
2600	FILE *tempfile = fopen (filename, "w");
2601
2602	if (tempfile == NULL)
2603	{
2604	LOG (llevError, "Error - Unable to access load object temp file\n");
2605	return NULL;
2606	}
2607
2608	fprintf (tempfile, obstr);
2609	fclose (tempfile);
2610
2611	op = get_object ();
2612
2613	object_thawer thawer (filename);
2614
2615	if (thawer)
2616	load_object (thawer, op, 0);
2617
2618	LOG (llevDebug, " load str completed, object=%s\n", &op->name);
2619	CLEAR_FLAG (op, FLAG_REMOVED);
2620
2621	return op;
2622	}	2307	}
2623		2308
2624	/* This returns the first object in who's inventory that	2309	/* This returns the first object in who's inventory that
2625	* has the same type and subtype match.	2310	* has the same type and subtype match.
2626	* returns NULL if no match.	2311	* returns NULL if no match.
2627	*/	2312	*/
2628	object *	2313	object *
2629	find_obj_by_type_subtype (const object *who, int type, int subtype)	2314	find_obj_by_type_subtype (const object *who, int type, int subtype)
2630	{	2315	{
2631	object *tmp;
2632
2633	for (tmp = who->inv; tmp; tmp = tmp->below)	2316	for (object *tmp = who->inv; tmp; tmp = tmp->below)
2634	if (tmp->type == type && tmp->subtype == subtype)	2317	if (tmp->type == type && tmp->subtype == subtype)
2635	return tmp;	2318	return tmp;
2636		2319
2637	return NULL;
2638	}
2639
2640	/* If ob has a field named key, return the link from the list,
2641	* otherwise return NULL.
2642	*
2643	* key must be a passed in shared string - otherwise, this won't
2644	* do the desired thing.
2645	*/
2646	key_value *
2647	get_ob_key_link (const object *ob, const char *key)
2648	{
2649	key_value *link;
2650
2651	for (link = ob->key_values; link != NULL; link = link->next)
2652	if (link->key == key)
2653	return link;
2654
2655	return NULL;
2656	}
2657
2658	/*
2659	* Returns the value of op has an extra_field for key, or NULL.
2660	*
2661	* The argument doesn't need to be a shared string.
2662	*
2663	* The returned string is shared.
2664	*/
2665	const char *
2666	get_ob_key_value (const object *op, const char *const key)
2667	{
2668	key_value *link;
2669	shstr_cmp canonical_key (key);
2670
2671	if (!canonical_key)
2672	{
2673	/* 1. There being a field named key on any object
2674	* implies there'd be a shared string to find.
2675	* 2. Since there isn't, no object has this field.
2676	* 3. Therefore, *this* object doesn't have this field.
2677	*/
2678	return 0;
2679	}
2680
2681	/* This is copied from get_ob_key_link() above -
2682	* only 4 lines, and saves the function call overhead.
2683	*/
2684	for (link = op->key_values; link; link = link->next)
2685	if (link->key == canonical_key)
2686	return link->value;
2687
2688	return 0;	2320	return 0;
2689	}	2321	}
2690		2322
2691		2323	const shstr &
2692	/*	2324	object::kv_get (const shstr &key) const
2693	* Updates the canonical_key in op to value.
2694	*
2695	* canonical_key is a shared string (value doesn't have to be).
2696	*
2697	* Unless add_key is TRUE, it won't add fields, only change the value of existing
2698	* keys.
2699	*
2700	* Returns TRUE on success.
2701	*/
2702	int
2703	set_ob_key_value_s (object *op, const shstr & canonical_key, const char *value, int add_key)
2704	{	2325	{
2705	key_value *	2326	for (key_value *kv = key_values; kv; kv = kv->next)
2706	field = NULL, *last = NULL;	2327	if (kv->key == key)
		2328	return kv->value;
2707		2329
2708	for (field = op->key_values; field != NULL; field = field->next)	2330	return shstr_null;
2709	{	2331	}
2710	if (field->key != canonical_key)	2332
		2333	void
		2334	object::kv_set (const shstr &key, const shstr &value)
		2335	{
		2336	for (key_value *kv = key_values; kv; kv = kv->next)
		2337	if (kv->key == key)
2711	{	2338	{
2712	last = field;	2339	kv->value = value;
2713	continue;	2340	return;
2714	}	2341	}
2715		2342
2716	if (value)	2343	key_value *kv = new key_value;
2717	field->value = value;	2344
2718	else	2345	kv->next = key_values;
		2346	kv->key = key;
		2347	kv->value = value;
		2348
		2349	key_values = kv;
		2350	}
		2351
		2352	void
		2353	object::kv_del (const shstr &key)
		2354	{
		2355	for (key_value **kvp = &key_values; *kvp; kvp = &(*kvp)->next)
		2356	if ((*kvp)->key == key)
2719	{	2357	{
2720	/* Basically, if the archetype has this key set,	2358	key_value *kv = *kvp;
2721	* we need to store the null value so when we save	2359	*kvp = (*kvp)->next;
2722	* it, we save the empty value so that when we load,	2360	delete kv;
2723	* we get this value back again.	2361	return;
2724	*/
2725	if (get_ob_key_link (&op->arch->clone, canonical_key))
2726	field->value = 0;
2727	else
2728	{
2729	if (last)
2730	last->next = field->next;
2731	else
2732	op->key_values = field->next;
2733
2734	delete field;
2735	}
2736	}	2362	}
2737	return TRUE;
2738	}
2739	/* IF we get here, key doesn't exist */
2740
2741	/* No field, we'll have to add it. */
2742
2743	if (!add_key)
2744	{
2745	return FALSE;
2746	}
2747	/* There isn't any good reason to store a null
2748	* value in the key/value list. If the archetype has
2749	* this key, then we should also have it, so shouldn't
2750	* be here. If user wants to store empty strings,
2751	* should pass in ""
2752	*/
2753	if (value == NULL)
2754	return TRUE;
2755
2756	field = new key_value;
2757
2758	field->key = canonical_key;
2759	field->value = value;
2760	/* Usual prepend-addition. */
2761	field->next = op->key_values;
2762	op->key_values = field;
2763
2764	return TRUE;
2765	}
2766
2767	/*
2768	* Updates the key in op to value.
2769	*
2770	* If add_key is FALSE, this will only update existing keys,
2771	* and not add new ones.
2772	* In general, should be little reason FALSE is ever passed in for add_key
2773	*
2774	* Returns TRUE on success.
2775	*/
2776	int
2777	set_ob_key_value (object *op, const char *key, const char *value, int add_key)
2778	{
2779	shstr key_ (key);
2780
2781	return set_ob_key_value_s (op, key_, value, add_key);
2782	}	2363	}
2783		2364
2784	object::depth_iterator::depth_iterator (object *container)	2365	object::depth_iterator::depth_iterator (object *container)
2785	: iterator_base (container)	2366	: iterator_base (container)
2786	{	2367	{
…		…
2800	}	2381	}
2801	else	2382	else
2802	item = item->env;	2383	item = item->env;
2803	}	2384	}
2804		2385
		2386	const char *
		2387	object::flag_desc (char *desc, int len) const
		2388	{
		2389	char *p = desc;
		2390	bool first = true;
		2391
		2392	*p = 0;
		2393
		2394	for (int i = 0; i < NUM_FLAGS; i++)
		2395	{
		2396	if (len <= 10) // magic constant!
		2397	{
		2398	snprintf (p, len, ",...");
		2399	break;
		2400	}
		2401
		2402	if (flag [i])
		2403	{
		2404	int cnt = snprintf (p, len, "%s%d", first ? "" : ",", i);
		2405	len -= cnt;
		2406	p += cnt;
		2407	first = false;
		2408	}
		2409	}
		2410
		2411	return desc;
		2412	}
		2413
2805	// return a suitable string describing an objetc in enough detail to find it	2414	// return a suitable string describing an object in enough detail to find it
2806	const char *	2415	const char *
2807	object::debug_desc (char *info) const	2416	object::debug_desc (char *info) const
2808	{	2417	{
		2418	char flagdesc[512];
2809	char info2[256 * 3];	2419	char info2[256 * 4];
2810	char *p = info;	2420	char *p = info;
2811		2421
2812	p += snprintf (p, 256, "%d=\"%s%s%s\"",	2422	p += snprintf (p, 512, "{cnt:%d,uuid:%s,name:\"%s\"%s%s%s,flags:[%s],type:%d}",
2813	count,	2423	count,
		2424	uuid.c_str (),
2814	&name,	2425	&name,
2815	title ? " " : "",	2426	title ? ",title:\"" : "",
2816	title ? (const char *)title : "");	2427	title ? (const char *)title : "",
		2428	title ? "\"" : "",
		2429	flag_desc (flagdesc, 512), type);
2817		2430
2818	if (env)	2431	if (!flag[FLAG_REMOVED] && env)
2819	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));	2432	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));
2820		2433
2821	if (map)	2434	if (map)
2822	p += snprintf (p, 256, "(on %s@%d+%d)", map->path, x, y);	2435	p += snprintf (p, 256, "(on %s@%d+%d)", &map->path, x, y);
2823		2436
2824	return info;	2437	return info;
2825	}	2438	}
2826		2439
2827	const char *	2440	const char *
2828	object::debug_desc () const	2441	object::debug_desc () const
2829	{	2442	{
2830	static char info[256 * 3];	2443	static char info[3][256 * 4];
		2444	static int info_idx;
		2445
2831	return debug_desc (info);	2446	return debug_desc (info [++info_idx % 3]);
2832	}	2447	}
2833		2448
		2449	struct region *
		2450	object::region () const
		2451	{
		2452	return map ? map->region (x, y)
		2453	: region::default_region ();
		2454	}
		2455
		2456	const materialtype_t *
		2457	object::dominant_material () const
		2458	{
		2459	if (materialtype_t *mt = name_to_material (materialname))
		2460	return mt;
		2461
		2462	return name_to_material (shstr_unknown);
		2463	}
		2464
		2465	void
		2466	object::open_container (object *new_container)
		2467	{
		2468	if (container == new_container)
		2469	return;
		2470
		2471	object *old_container = container;
		2472
		2473	if (old_container)
		2474	{
		2475	if (INVOKE_OBJECT (CLOSE, old_container, ARG_OBJECT (this)))
		2476	return;
		2477
		2478	#if 0
		2479	// remove the "Close old_container" object.
		2480	if (object *closer = old_container->inv)
		2481	if (closer->type == CLOSE_CON)
		2482	closer->destroy ();
		2483	#endif
		2484
		2485	// make sure the container is available
		2486	esrv_send_item (this, old_container);
		2487
		2488	old_container->flag [FLAG_APPLIED] = false;
		2489	container = 0;
		2490
		2491	// client needs item update to make it work, client bug requires this to be separate
		2492	esrv_update_item (UPD_FLAGS, this, old_container);
		2493
		2494	new_draw_info_format (NDI_UNIQUE, 0, this, "You close %s.", query_name (old_container));
		2495	play_sound (sound_find ("chest_close"));
		2496	}
		2497
		2498	if (new_container)
		2499	{
		2500	if (INVOKE_OBJECT (OPEN, new_container, ARG_OBJECT (this)))
		2501	return;
		2502
		2503	// TODO: this does not seem to serve any purpose anymore?
		2504	#if 0
		2505	// insert the "Close Container" object.
		2506	if (archetype *closer = new_container->other_arch)
		2507	{
		2508	object *closer = arch_to_object (new_container->other_arch);
		2509	closer->flag [FLAG_NO_MAP_SAVE] = 1;
		2510	new_container->insert (closer);
		2511	}
		2512	#endif
		2513
		2514	new_draw_info_format (NDI_UNIQUE, 0, this, "You open %s.", query_name (new_container));
		2515
		2516	// make sure the container is available, client bug requires this to be separate
		2517	esrv_send_item (this, new_container);
		2518
		2519	new_container->flag [FLAG_APPLIED] = true;
		2520	container = new_container;
		2521
		2522	// client needs flag change
		2523	esrv_update_item (UPD_FLAGS, this, new_container);
		2524	esrv_send_inventory (this, new_container);
		2525	play_sound (sound_find ("chest_open"));
		2526	}
		2527	// else if (!old_container->env && contr && contr->ns)
		2528	// contr->ns->floorbox_reset ();
		2529	}
		2530
		2531	object *
		2532	object::force_find (const shstr name)
		2533	{
		2534	/* cycle through his inventory to look for the MARK we want to
		2535	* place
		2536	*/
		2537	for (object *tmp = inv; tmp; tmp = tmp->below)
		2538	if (tmp->type == FORCE && tmp->slaying == name)
		2539	return splay (tmp);
		2540
		2541	return 0;
		2542	}
		2543
		2544	void
		2545	object::force_add (const shstr name, int duration)
		2546	{
		2547	if (object *force = force_find (name))
		2548	force->destroy ();
		2549
		2550	object *force = get_archetype (FORCE_NAME);
		2551
		2552	force->slaying = name;
		2553	force->stats.food = 1;
		2554	force->speed_left = -1.f;
		2555
		2556	force->set_speed (duration ? 1.f / duration : 0.f);
		2557	force->flag [FLAG_IS_USED_UP] = true;
		2558	force->flag [FLAG_APPLIED] = true;
		2559
		2560	insert (force);
		2561	}
		2562
		2563	void
		2564	object::play_sound (faceidx sound)
		2565	{
		2566	if (!sound)
		2567	return;
		2568
		2569	if (flag [FLAG_REMOVED])
		2570	return;
		2571
		2572	if (env)
		2573	{
		2574	if (object *pl = in_player ())
		2575	pl->contr->play_sound (sound);
		2576	}
		2577	else
		2578	map->play_sound (sound, x, y);
		2579	}
		2580

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