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Comparing deliantra/server/common/object.C (file contents):
Revision 1.55 by root, Sun Dec 3 00:41:33 2006 UTC vs.
Revision 1.267 by root, Tue Dec 23 01:51:27 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, assume nrof
		192	* is always 0 .. 2**31-1 */
		193	if (ob1->nrof > 0x7fffffff - ob2->nrof)
201	return 0;	194	return 0;
202		195
203	/* Do not merge objects if nrof would overflow. We use 1UL<<31 since that
204	* value could not be stored in a sint32 (which unfortunately sometimes is
205	* used to store nrof).
206	*/
207	if (ob1->nrof + ob2->nrof >= 1UL << 31)
208	return 0;
209
210	/* If the objects have been identified, set the BEEN_APPLIED flag.	196	/* If the objects have been identified, set the BEEN_APPLIED flag.
211	* This is to the comparison of the flags below will be OK. We	197	* This is to the comparison of the flags below will be OK. We
212	* just can't ignore the been applied or identified flags, as they	198	* just can't ignore the been applied or identified flags, as they
213	* are not equal - just if it has been identified, the been_applied	199	* are not equal - just if it has been identified, the been_applied
214	* flags lose any meaning.	200	* flags lose any meaning.
215	*/	201	*/
216	if (QUERY_FLAG (ob1, FLAG_IDENTIFIED))	202	if (QUERY_FLAG (ob1, FLAG_IDENTIFIED))
217	SET_FLAG (ob1, FLAG_BEEN_APPLIED);	203	SET_FLAG (ob1, FLAG_BEEN_APPLIED);
218		204
219	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))	205	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))
220	SET_FLAG (ob2, FLAG_BEEN_APPLIED);	206	SET_FLAG (ob2, FLAG_BEEN_APPLIED);
221		207
222		208	if (ob1->arch->archname != ob2->arch->archname
223	/* the 0x400000 on flags2 is FLAG_INV_LOCK. I don't think something
224	* being locked in inventory should prevent merging.
225	* 0x4 in flags3 is CLIENT_SENT
226	*/
227	if ((ob1->arch != ob2->arch) ||
228	(ob1->flags[0] != ob2->flags[0]) ||
229	(ob1->flags[1] != ob2->flags[1]) ||
230	((ob1->flags[2] & ~0x400000) != (ob2->flags[2] & ~0x400000)) ||
231	((ob1->flags[3] & ~0x4) != (ob2->flags[3] & ~0x4)) ||
232	(ob1->name != ob2->name) ||	209	|| ob1->name != ob2->name
233	(ob1->title != ob2->title) ||	210	|| ob1->title != ob2->title
234	(ob1->msg != ob2->msg) ||	211	|| ob1->msg != ob2->msg
235	(ob1->weight != ob2->weight) ||	212	|| ob1->weight != ob2->weight
236	(memcmp (&ob1->resist, &ob2->resist, sizeof (ob1->resist)) != 0) ||
237	(memcmp (&ob1->stats, &ob2->stats, sizeof (ob1->stats)) != 0) ||
238	(ob1->attacktype != ob2->attacktype) ||	213	|| ob1->attacktype != ob2->attacktype
239	(ob1->magic != ob2->magic) ||	214	|| ob1->magic != ob2->magic
240	(ob1->slaying != ob2->slaying) ||	215	|| ob1->slaying != ob2->slaying
241	(ob1->skill != ob2->skill) ||	216	|| ob1->skill != ob2->skill
242	(ob1->value != ob2->value) ||	217	|| ob1->value != ob2->value
243	(ob1->animation_id != ob2->animation_id) ||	218	|| ob1->animation_id != ob2->animation_id
		219	|| (ob1->face != ob2->face && !ob1->animation_id) // face and animation are dependent on each other
244	(ob1->client_type != ob2->client_type) ||	220	|| ob1->client_type != ob2->client_type
245	(ob1->materialname != ob2->materialname) ||	221	|| ob1->materialname != ob2->materialname
246	(ob1->lore != ob2->lore) ||	222	|| ob1->lore != ob2->lore
247	(ob1->subtype != ob2->subtype) ||	223	|| ob1->subtype != ob2->subtype
248	(ob1->move_type != ob2->move_type) ||	224	|| ob1->move_type != ob2->move_type
249	(ob1->move_block != ob2->move_block) ||	225	|| ob1->move_block != ob2->move_block
250	(ob1->move_allow != ob2->move_allow) ||	226	|| ob1->move_allow != ob2->move_allow
251	(ob1->move_on != ob2->move_on) ||	227	|| ob1->move_on != ob2->move_on
252	(ob1->move_off != ob2->move_off) || (ob1->move_slow != ob2->move_slow) || (ob1->move_slow_penalty != ob2->move_slow_penalty))	228	|| ob1->move_off != ob2->move_off
		229	|| ob1->move_slow != ob2->move_slow
		230	|| ob1->move_slow_penalty != ob2->move_slow_penalty
		231	|| memcmp (&ob1->resist, &ob2->resist, sizeof (ob1->resist))
		232	|| memcmp (&ob1->stats , &ob2->stats , sizeof (ob1->stats)))
253	return 0;	233	return 0;
254		234
		235	if ((ob1->flag ^ ob2->flag)
		236	.reset (FLAG_INV_LOCKED)
		237	.reset (FLAG_REMOVED)
		238	.any ())
		239	return 0;
		240
255	/* This is really a spellbook check - really, we should	241	/* This is really a spellbook check - we should in general
256	* check all objects in the inventory.	242	* not merge objects with real inventories, as splitting them
		243	* is hard.
257	*/	244	*/
258	if (ob1->inv || ob2->inv)	245	if (ob1->inv || ob2->inv)
259	{	246	{
260	/* if one object has inventory but the other doesn't, not equiv */
261	if ((ob1->inv && !ob2->inv) || (ob2->inv && !ob1->inv))
262	return 0;
263
264	/* Now check to see if the two inventory objects could merge */
265	if (!CAN_MERGE (ob1->inv, ob2->inv))	247	if (!(ob1->inv && ob2->inv))
266	return 0;	248	return 0; /* inventories differ in length */
		249
		250	if (ob1->inv->below || ob2->inv->below)
		251	return 0; /* more than one object in inv */
		252
		253	if (!object::can_merge (ob1->inv, ob2->inv))
		254	return 0; /* inventory objects differ */
267		255
268	/* inventory ok - still need to check rest of this object to see	256	/* inventory ok - still need to check rest of this object to see
269	* if it is valid.	257	* if it is valid.
270	*/	258	*/
271	}	259	}
…		…
279		267
280	/* Note sure why the following is the case - either the object has to	268	/* Note sure why the following is the case - either the object has to
281	* be animated or have a very low speed. Is this an attempted monster	269	* be animated or have a very low speed. Is this an attempted monster
282	* check?	270	* check?
283	*/	271	*/
284	if (!QUERY_FLAG (ob1, FLAG_ANIMATE) && FABS ((ob1)->speed) > MIN_ACTIVE_SPEED)	272	if (!QUERY_FLAG (ob1, FLAG_ANIMATE) && ob1->has_active_speed ())
285	return 0;	273	return 0;
286		274
287	switch (ob1->type)	275	switch (ob1->type)
288	{	276	{
289	case SCROLL:	277	case SCROLL:
290	if (ob1->level != ob2->level)	278	if (ob1->level != ob2->level)
291	return 0;	279	return 0;
292	break;	280	break;
293	}	281	}
294		282
295	if (ob1->key_values != NULL || ob2->key_values != NULL)	283	if (ob1->key_values || ob2->key_values)
296	{	284	{
297	/* At least one of these has key_values. */	285	/* At least one of these has key_values. */
298	if ((ob1->key_values == NULL) != (ob2->key_values == NULL))	286	if ((!ob1->key_values) != (!ob2->key_values))
299	/* One has fields, but the other one doesn't. */	287	return 0; /* One has fields, but the other one doesn't. */
		288
		289	if (!compare_ob_value_lists (ob1, ob2))
300	return 0;	290	return 0;
301	else if (!compare_ob_value_lists (ob1, ob2))
302	return 0;
303	}	291	}
304		292
305	//TODO: generate an event or call into perl for additional checks
306	if (ob1->self || ob2->self)	293	if (ob1->self || ob2->self)
307	{	294	{
308	ob1->optimise ();	295	ob1->optimise ();
309	ob2->optimise ();	296	ob2->optimise ();
310		297
311	if (ob1->self || ob2->self)	298	if (ob1->self || ob2->self)
		299	{
		300	int k1 = ob1->self ? HvTOTALKEYS (ob1->self) : 0;
		301	int k2 = ob2->self ? HvTOTALKEYS (ob2->self) : 0;
		302
		303	if (k1 != k2)
312	return 0;	304	return 0;
		305
		306	if (k1 == 0)
		307	return 1;
		308
		309	if (!cfperl_can_merge (ob1, ob2))
		310	return 0;
		311	}
313	}	312	}
314		313
315	/* Everything passes, must be OK. */	314	/* Everything passes, must be OK. */
316	return 1;	315	return 1;
317	}	316	}
318		317
		318	// find player who can see this object
		319	object *
		320	object::visible_to () const
		321	{
		322	if (client_visible () && !flag [FLAG_REMOVED])
		323	{
		324	// see if we are in a container of sorts
		325	if (env)
		326	{
		327	// the player inventory itself is always visible
		328	if (env->type == PLAYER)
		329	return env;
		330
		331	// else a player could have our env open
		332	object *envest = env->outer_env ();
		333
		334	// the player itself is always on a map, so we will find him here
		335	// even if our inv is in a player.
		336	if (envest->is_on_map ())
		337	if (object *pl = envest->ms ().player ())
		338	if (pl->container == env)
		339	return pl;
		340	}
		341	else
		342	{
		343	// maybe there is a player standing on the same mapspace
		344	// this will catch the case where "this" is a player
		345	if (object *pl = ms ().player ())
		346	if ((!pl->container && pl->contr->ns && !pl->contr->ns->update_look)
		347	|| this == pl->container)
		348	return pl;
		349	}
		350	}
		351
		352	return 0;
		353	}
		354
		355	// adjust weight per container type ("of holding")
		356	static sint32
		357	weight_adjust_for (object *op, sint32 weight)
		358	{
		359	return op->type == CONTAINER
		360	? lerp (weight, 0, 100, 0, 100 - op->stats.Str)
		361	: weight;
		362	}
		363
319	/*	364	/*
		365	* adjust_weight(object, weight) adds the specified weight to an object,
		366	* and also updates how much the environment(s) is/are carrying.
		367	*/
		368	static void
		369	adjust_weight (object *op, sint32 weight)
		370	{
		371	while (op)
		372	{
		373	// adjust by actual difference to account for rounding errors
		374	// i.e. (w2 - w1) / f != w2 / f - w1 / f and the latter is correct
		375	weight = weight_adjust_for (op, op->carrying)
		376	- weight_adjust_for (op, op->carrying - weight);
		377
		378	if (!weight)
		379	return;
		380
		381	op->carrying += weight;
		382
		383	if (object *pl = op->visible_to ())
		384	if (pl != op) // player is handled lazily
		385	esrv_update_item (UPD_WEIGHT, pl, op);
		386
		387	op = op->env;
		388	}
		389	}
		390
		391	/*
320	* sum_weight() is a recursive function which calculates the weight	392	* this is a recursive function which calculates the weight
321	* an object is carrying. It goes through in figures out how much	393	* an object is carrying. It goes through op and figures out how much
322	* containers are carrying, and sums it up.	394	* containers are carrying, and sums it up.
323	*/	395	*/
324	long	396	void
325	sum_weight (object *op)	397	object::update_weight ()
326	{	398	{
327	long sum;	399	sint32 sum = 0;
328	object *inv;
329		400
330	for (sum = 0, inv = op->inv; inv != NULL; inv = inv->below)	401	for (object *op = inv; op; op = op->below)
331	{	402	{
332	if (inv->inv)	403	if (op->inv)
333	sum_weight (inv);	404	op->update_weight ();
334	sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1);	405
		406	sum += op->total_weight ();
		407	}
		408
		409	sum = weight_adjust_for (this, sum);
		410
		411	if (sum != carrying)
335	}	412	{
336
337	if (op->type == CONTAINER && op->stats.Str)
338	sum = (sum * (100 - op->stats.Str)) / 100;
339
340	if (op->carrying != sum)
341	op->carrying = sum;	413	carrying = sum;
342		414
343	return sum;	415	if (object *pl = visible_to ())
		416	if (pl != this) // player is handled lazily
		417	esrv_update_item (UPD_WEIGHT, pl, this);
		418	}
344	}	419	}
345		420
346	/**	421	/*
347	* Return the outermost environment object for a given object.	422	* Used by: Server DM commands: dumpbelow, dump. Some error messages.
348	*/	423	*/
349
350	object *
351	object_get_env_recursive (object *op)
352	{
353	while (op->env != NULL)
354	op = op->env;
355	return op;
356	}
357
358	/*
359	* Eneq(@csd.uu.se): Since we can have items buried in a character we need
360	* a better check. We basically keeping traversing up until we can't
361	* or find a player.
362	*/
363
364	object *
365	is_player_inv (object *op)
366	{
367	for (; op != NULL && op->type != PLAYER; op = op->env)
368	if (op->env == op)
369	op->env = NULL;
370	return op;
371	}
372
373	/*
374	* Used by: Crossedit: dump. Server DM commands: dumpbelow, dump.
375	* Some error messages.
376	* The result of the dump is stored in the static global errmsg array.
377	*/
378
379	char *	424	char *
380	dump_object (object *op)	425	dump_object (object *op)
381	{	426	{
382	if (!op)	427	if (!op)
383	return strdup ("[NULLOBJ]");	428	return strdup ("[NULLOBJ]");
384		429
385	object_freezer freezer;	430	object_freezer freezer;
386	save_object (freezer, op, 3);	431	op->write (freezer);
387	return freezer.as_string ();	432	return freezer.as_string ();
388	}	433	}
389		434
390	/*	435	/*
391	* get_nearest_part(multi-object, object 2) returns the part of the	436	* get_nearest_part(multi-object, object 2) returns the part of the
392	* multi-object 1 which is closest to the second object.	437	* multi-object 1 which is closest to the second object.
393	* If it's not a multi-object, it is returned.	438	* If it's not a multi-object, it is returned.
394	*/	439	*/
395
396	object *	440	object *
397	get_nearest_part (object *op, const object *pl)	441	get_nearest_part (object *op, const object *pl)
398	{	442	{
399	object *tmp, *closest;	443	object *tmp, *closest;
400	int last_dist, i;	444	int last_dist, i;
401		445
402	if (op->more == NULL)	446	if (!op->more)
403	return op;	447	return op;
		448
404	for (last_dist = distance (op, pl), closest = op, tmp = op->more; tmp != NULL; tmp = tmp->more)	449	for (last_dist = distance (op, pl), closest = op, tmp = op->more;
		450	tmp;
		451	tmp = tmp->more)
405	if ((i = distance (tmp, pl)) < last_dist)	452	if ((i = distance (tmp, pl)) < last_dist)
406	closest = tmp, last_dist = i;	453	closest = tmp, last_dist = i;
		454
407	return closest;	455	return closest;
408	}	456	}
409		457
410	/*	458	/*
411	* Returns the object which has the count-variable equal to the argument.	459	* Returns the object which has the count-variable equal to the argument.
		460	* VERRRY slow.
412	*/	461	*/
413
414	object *	462	object *
415	find_object (tag_t i)	463	find_object (tag_t i)
416	{	464	{
417	for (object *op = object::first; op; op = op->next)	465	for_all_objects (op)
418	if (op->count == i)	466	if (op->count == i)
419	return op;	467	return op;
420		468
421	return 0;	469	return 0;
422	}	470	}
423		471
424	/*	472	/*
425	* Returns the first object which has a name equal to the argument.	473	* Returns the first object which has a name equal to the argument.
426	* Used only by the patch command, but not all that useful.	474	* Used only by the patch command, but not all that useful.
427	* Enables features like "patch <name-of-other-player> food 999"	475	* Enables features like "patch <name-of-other-player> food 999"
428	*/	476	*/
429
430	object *	477	object *
431	find_object_name (const char *str)	478	find_object_name (const char *str)
432	{	479	{
433	shstr_cmp str_ (str);	480	shstr_cmp str_ (str);
434	object *op;
435		481
436	for (op = object::first; op != NULL; op = op->next)	482	if (str_)
		483	for_all_objects (op)
437	if (op->name == str_)	484	if (op->name == str_)
438	break;	485	return op;
439		486
440	return op;	487	return 0;
441	}
442
443	void
444	free_all_object_data ()
445	{
446	LOG (llevDebug, "%d allocated objects\n", nrofallocobjects);
447	}	488	}
448		489
449	/*	490	/*
450	* Sets the owner and sets the skill and exp pointers to owner's current	491	* Sets the owner and sets the skill and exp pointers to owner's current
451	* skill and experience objects.	492	* skill and experience objects.
		493	* ACTUALLY NO! investigate! TODO
452	*/	494	*/
453	void	495	void
454	object::set_owner (object *owner)	496	object::set_owner (object *owner)
455	{	497	{
		498	// allow objects which own objects
456	if (!owner)	499	if (owner)
457	return;
458
459	/* next line added to allow objects which own objects */
460	/* Add a check for ownercounts in here, as I got into an endless loop
461	* with the fireball owning a poison cloud which then owned the
462	* fireball. I believe that was caused by one of the objects getting
463	* freed and then another object replacing it. Since the ownercounts
464	* didn't match, this check is valid and I believe that cause is valid.
465	*/
466	while (owner->owner)	500	while (owner->owner)
467	owner = owner->owner;	501	owner = owner->owner;
		502
		503	if (flag [FLAG_FREED])
		504	{
		505	LOG (llevError | logBacktrace, "tried to set owner of %s to %s\n", debug_desc (), owner->debug_desc ());
		506	return;
		507	}
468		508
469	this->owner = owner;	509	this->owner = owner;
		510	}
		511
		512	int
		513	object::slottype () const
		514	{
		515	if (type == SKILL)
		516	{
		517	if (IS_COMBAT_SKILL (subtype)) return slot_combat;
		518	if (IS_RANGED_SKILL (subtype)) return slot_ranged;
		519	}
		520	else
		521	{
		522	if (slot [body_combat].info) return slot_combat;
		523	if (slot [body_range ].info) return slot_ranged;
		524	}
		525
		526	return slot_none;
		527	}
		528
		529	bool
		530	object::change_weapon (object *ob)
		531	{
		532	if (current_weapon == ob)
		533	return true;
		534
		535	if (chosen_skill)
		536	chosen_skill->flag [FLAG_APPLIED] = false;
		537
		538	current_weapon = ob;
		539	chosen_skill = !ob || ob->type == SKILL ? ob : find_skill_by_name (this, ob->skill);
		540
		541	if (chosen_skill)
		542	chosen_skill->flag [FLAG_APPLIED] = true;
		543
		544	update_stats ();
		545
		546	if (ob)
		547	{
		548	// now check wether any body locations became invalid, in which case
		549	// we cannot apply the weapon at the moment.
		550	for (int i = 0; i < NUM_BODY_LOCATIONS; ++i)
		551	if (slot[i].used < 0)
		552	{
		553	current_weapon = chosen_skill = 0;
		554	update_stats ();
		555
		556	new_draw_info_format (NDI_UNIQUE, 0, this,
		557	"You try to balance all your items at once, "
		558	"but the %s is just too much for your body. "
		559	"[You need to unapply some items first.]", &ob->name);
		560	return false;
		561	}
		562
		563	//new_draw_info_format (NDI_UNIQUE, 0, this, "You switch to your %s.", &ob->name);
		564	}
		565	else
		566	;//new_draw_info_format (NDI_UNIQUE, 0, this, "You unwield your weapons.");
		567
		568	if (ob && !ob->flag [FLAG_APPLIED] && ob->type != SPELL)
		569	{
		570	LOG (llevError | logBacktrace, "%s changed to unapplied weapon %s",
		571	&name, ob->debug_desc ());
		572	return false;
		573	}
		574
		575	return true;
470	}	576	}
471		577
472	/* Zero the key_values on op, decrementing the shared-string	578	/* Zero the key_values on op, decrementing the shared-string
473	* refcounts and freeing the links.	579	* refcounts and freeing the links.
474	*/	580	*/
475	static void	581	static void
476	free_key_values (object *op)	582	free_key_values (object *op)
477	{	583	{
478	for (key_value *i = op->key_values; i != 0;)	584	for (key_value *i = op->key_values; i; )
479	{	585	{
480	key_value *next = i->next;	586	key_value *next = i->next;
481	delete i;	587	delete i;
482		588
483	i = next;	589	i = next;
484	}	590	}
485		591
486	op->key_values = 0;	592	op->key_values = 0;
487	}	593	}
488		594
489	void object::clear ()
490	{
491	attachable_base::clear ();
492
493	free_key_values (this);
494
495	owner = 0;
496	name = 0;
497	name_pl = 0;
498	title = 0;
499	race = 0;
500	slaying = 0;
501	skill = 0;
502	msg = 0;
503	lore = 0;
504	custom_name = 0;
505	materialname = 0;
506	contr = 0;
507	below = 0;
508	above = 0;
509	inv = 0;
510	container = 0;
511	env = 0;
512	more = 0;
513	head = 0;
514	map = 0;
515	active_next = 0;
516	active_prev = 0;
517
518	memset (static_cast<object_pod *>(this), 0, sizeof (object_pod));
519
520	SET_FLAG (this, FLAG_REMOVED);
521
522	/* What is not cleared is next, prev, and count */
523
524	expmul = 1.0;
525	face = blank_face;
526
527	if (settings.casting_time)
528	casting_time = -1;
529	}
530
531	void object::clone (object *destination)
532	{
533	*(object_copy *)destination = *this;
534	*(object_pod *)destination = *this;
535
536	if (self || cb)
537	INVOKE_OBJECT (CLONE, this, ARG_OBJECT (destination));
538	}
539
540	/*	595	/*
541	* copy object first frees everything allocated by the second object,	596	* copy_to first frees everything allocated by the dst object,
542	* and then copies the contends of the first object into the second	597	* and then copies the contents of itself into the second
543	* object, allocating what needs to be allocated. Basically, any	598	* object, allocating what needs to be allocated. Basically, any
544	* data that is malloc'd needs to be re-malloc/copied. Otherwise,	599	* data that is malloc'd needs to be re-malloc/copied. Otherwise,
545	* if the first object is freed, the pointers in the new object	600	* if the first object is freed, the pointers in the new object
546	* will point at garbage.	601	* will point at garbage.
547	*/	602	*/
548	void	603	void
549	copy_object (object *op2, object *op)	604	object::copy_to (object *dst)
550	{	605	{
551	bool is_freed = QUERY_FLAG (op, FLAG_FREED);	606	dst->remove ();
552	bool is_removed = QUERY_FLAG (op, FLAG_REMOVED);	607	*(object_copy *)dst = *this;
553		608	dst->flag [FLAG_REMOVED] = true;
554	op2->clone (op);
555
556	if (is_freed)
557	SET_FLAG (op, FLAG_FREED);
558	if (is_removed)
559	SET_FLAG (op, FLAG_REMOVED);
560
561	if (op2->speed < 0)
562	op->speed_left = op2->speed_left - RANDOM () % 200 / 100.0;
563		609
564	/* Copy over key_values, if any. */	610	/* Copy over key_values, if any. */
565	if (op2->key_values)	611	if (key_values)
566	{	612	{
567	key_value *tail = 0;	613	key_value *tail = 0;
568	key_value *i;
569
570	op->key_values = 0;	614	dst->key_values = 0;
571		615
572	for (i = op2->key_values; i; i = i->next)	616	for (key_value *i = key_values; i; i = i->next)
573	{	617	{
574	key_value *new_link = new key_value;	618	key_value *new_link = new key_value;
575		619
576	new_link->next = 0;	620	new_link->next = 0;
577	new_link->key = i->key;	621	new_link->key = i->key;
578	new_link->value = i->value;	622	new_link->value = i->value;
579		623
580	/* Try and be clever here, too. */	624	/* Try and be clever here, too. */
581	if (!op->key_values)	625	if (!dst->key_values)
582	{	626	{
583	op->key_values = new_link;	627	dst->key_values = new_link;
584	tail = new_link;	628	tail = new_link;
585	}	629	}
586	else	630	else
587	{	631	{
588	tail->next = new_link;	632	tail->next = new_link;
589	tail = new_link;	633	tail = new_link;
590	}	634	}
591	}	635	}
592	}	636	}
593		637
594	update_ob_speed (op);	638	if (speed < 0)
		639	dst->speed_left -= rndm ();
		640
		641	dst->activate ();
		642	}
		643
		644	void
		645	object::instantiate ()
		646	{
		647	if (!uuid.seq) // HACK
		648	uuid = UUID::gen ();
		649
		650	speed_left = -0.1f;
		651	/* copy the body_info to the body_used - this is only really
		652	* need for monsters, but doesn't hurt to do it for everything.
		653	* by doing so, when a monster is created, it has good starting
		654	* values for the body_used info, so when items are created
		655	* for it, they can be properly equipped.
		656	*/
		657	for (int i = NUM_BODY_LOCATIONS; i--; )
		658	slot[i].used = slot[i].info;
		659
		660	attachable::instantiate ();
		661	}
		662
		663	object *
		664	object::clone ()
		665	{
		666	object *neu = create ();
		667	copy_to (neu);
		668	neu->map = map; // not copied by copy_to
		669	return neu;
595	}	670	}
596		671
597	/*	672	/*
598	* If an object with the IS_TURNABLE() flag needs to be turned due	673	* If an object with the IS_TURNABLE() flag needs to be turned due
599	* to the closest player being on the other side, this function can	674	* to the closest player being on the other side, this function can
600	* be called to update the face variable, _and_ how it looks on the map.	675	* be called to update the face variable, _and_ how it looks on the map.
601	*/	676	*/
602
603	void	677	void
604	update_turn_face (object *op)	678	update_turn_face (object *op)
605	{	679	{
606	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || op->arch == NULL)	680	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || !op->arch)
607	return;	681	return;
		682
608	SET_ANIMATION (op, op->direction);	683	SET_ANIMATION (op, op->direction);
609	update_object (op, UP_OBJ_FACE);	684	update_object (op, UP_OBJ_FACE);
610	}	685	}
611		686
612	/*	687	/*
613	* Updates the speed of an object. If the speed changes from 0 to another	688	* Updates the speed of an object. If the speed changes from 0 to another
614	* value, or vice versa, then add/remove the object from the active list.	689	* value, or vice versa, then add/remove the object from the active list.
615	* This function needs to be called whenever the speed of an object changes.	690	* This function needs to be called whenever the speed of an object changes.
616	*/	691	*/
617	void	692	void
618	update_ob_speed (object *op)	693	object::set_speed (float speed)
619	{	694	{
620	extern int arch_init;	695	if (flag [FLAG_FREED] && speed)
621
622	/* No reason putting the archetypes objects on the speed list,
623	* since they never really need to be updated.
624	*/
625
626	if (QUERY_FLAG (op, FLAG_FREED) && op->speed)
627	{	696	{
628	LOG (llevError, "Object %s is freed but has speed.\n", &op->name);	697	LOG (llevError, "Object %s is freed but has speed.\n", &name);
629	#ifdef MANY_CORES
630	abort ();
631	#else
632	op->speed = 0;	698	speed = 0;
633	#endif
634	}
635
636	if (arch_init)
637	return;
638
639	if (FABS (op->speed) > MIN_ACTIVE_SPEED)
640	{	699	}
641	/* If already on active list, don't do anything */
642	if (op->active_next || op->active_prev || op == active_objects)
643	return;
644		700
645	/* process_events() expects us to insert the object at the beginning	701	this->speed = speed;
646	* of the list. */
647	op->active_next = active_objects;
648		702
649	if (op->active_next != NULL)	703	if (has_active_speed ())
650	op->active_next->active_prev = op;	704	activate ();
651
652	active_objects = op;
653	}
654	else	705	else
655	{	706	deactivate ();
656	/* If not on the active list, nothing needs to be done */
657	if (!op->active_next && !op->active_prev && op != active_objects)
658	return;
659
660	if (op->active_prev == NULL)
661	{
662	active_objects = op->active_next;
663
664	if (op->active_next != NULL)
665	op->active_next->active_prev = NULL;
666	}
667	else
668	{
669	op->active_prev->active_next = op->active_next;
670
671	if (op->active_next)
672	op->active_next->active_prev = op->active_prev;
673	}
674
675	op->active_next = NULL;
676	op->active_prev = NULL;
677	}
678	}	707	}
679		708
680	/* This function removes object 'op' from the list of active
681	* objects.
682	* This should only be used for style maps or other such
683	* reference maps where you don't want an object that isn't
684	* in play chewing up cpu time getting processed.
685	* The reverse of this is to call update_ob_speed, which
686	* will do the right thing based on the speed of the object.
687	*/
688	void
689	remove_from_active_list (object *op)
690	{
691	/* If not on the active list, nothing needs to be done */
692	if (!op->active_next && !op->active_prev && op != active_objects)
693	return;
694
695	if (op->active_prev == NULL)
696	{
697	active_objects = op->active_next;
698	if (op->active_next != NULL)
699	op->active_next->active_prev = NULL;
700	}
701	else
702	{
703	op->active_prev->active_next = op->active_next;
704	if (op->active_next)
705	op->active_next->active_prev = op->active_prev;
706	}
707	op->active_next = NULL;
708	op->active_prev = NULL;
709	}
710
711	/*	709	/*
712	* update_object() updates the array which represents the map.	710	* update_object() updates the the map.
713	* It takes into account invisible objects (and represent squares covered	711	* It takes into account invisible objects (and represent squares covered
714	* by invisible objects by whatever is below them (unless it's another	712	* by invisible objects by whatever is below them (unless it's another
715	* invisible object, etc...)	713	* invisible object, etc...)
716	* If the object being updated is beneath a player, the look-window	714	* If the object being updated is beneath a player, the look-window
717	* of that player is updated (this might be a suboptimal way of	715	* of that player is updated (this might be a suboptimal way of
718	* updating that window, though, since update_object() is called _often_)	716	* updating that window, though, since update_object() is called _often_)
719	*	717	*
720	* action is a hint of what the caller believes need to be done.	718	* action is a hint of what the caller believes need to be done.
721	* For example, if the only thing that has changed is the face (due to
722	* an animation), we don't need to call update_position until that actually
723	* comes into view of a player. OTOH, many other things, like addition/removal
724	* of walls or living creatures may need us to update the flags now.
725	* current action are:	719	* current action are:
726	* UP_OBJ_INSERT: op was inserted	720	* UP_OBJ_INSERT: op was inserted
727	* UP_OBJ_REMOVE: op was removed	721	* UP_OBJ_REMOVE: op was removed
728	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update	722	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update
729	* as that is easier than trying to look at what may have changed.	723	* as that is easier than trying to look at what may have changed.
730	* UP_OBJ_FACE: only the objects face has changed.	724	* UP_OBJ_FACE: only the objects face has changed.
731	*/	725	*/
732
733	void	726	void
734	update_object (object *op, int action)	727	update_object (object *op, int action)
735	{	728	{
736	int update_now = 0, flags;	729	if (!op)
737	MoveType move_on, move_off, move_block, move_slow;
738
739	if (op == NULL)
740	{	730	{
741	/* this should never happen */	731	/* this should never happen */
742	LOG (llevDebug, "update_object() called for NULL object.\n");	732	LOG (llevError | logBacktrace, "update_object() called for NULL object.\n");
743	return;	733	return;
744	}	734	}
745		735
746	if (op->env != NULL)	736	if (!op->is_on_map ())
747	{	737	{
748	/* Animation is currently handled by client, so nothing	738	/* Animation is currently handled by client, so nothing
749	* to do in this case.	739	* to do in this case.
750	*/	740	*/
751	return;	741	return;
752	}	742	}
753		743
754	/* If the map is saving, don't do anything as everything is
755	* going to get freed anyways.
756	*/
757	if (!op->map || op->map->in_memory == MAP_SAVING)
758	return;
759
760	/* make sure the object is within map boundaries */	744	/* make sure the object is within map boundaries */
761	if (op->x < 0 || op->x >= MAP_WIDTH (op->map) || op->y < 0 || op->y >= MAP_HEIGHT (op->map))	745	if (op->x < 0 || op->x >= op->map->width || op->y < 0 || op->y >= op->map->height)
762	{	746	{
763	LOG (llevError, "update_object() called for object out of map!\n");	747	LOG (llevError, "update_object() called for object out of map!\n");
764	#ifdef MANY_CORES	748	#ifdef MANY_CORES
765	abort ();	749	abort ();
766	#endif	750	#endif
767	return;	751	return;
768	}	752	}
769		753
770	flags = GET_MAP_FLAGS (op->map, op->x, op->y);	754	mapspace &m = op->ms ();
771	SET_MAP_FLAGS (op->map, op->x, op->y, flags | P_NEED_UPDATE);
772	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);
773	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);
774	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);
775	move_off = GET_MAP_MOVE_OFF (op->map, op->x, op->y);
776		755
		756	if (!(m.flags_ & P_UPTODATE))
		757	/* nop */;
777	if (action == UP_OBJ_INSERT)	758	else if (action == UP_OBJ_INSERT)
778	{	759	{
		760	// this is likely overkill, TODO: revisit (schmorp)
779	if (QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(flags & P_BLOCKSVIEW))	761	if ((QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(m.flags_ & P_BLOCKSVIEW))
780	update_now = 1;
781
782	if (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(flags & P_NO_MAGIC))	762	|| (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(m.flags_ & P_NO_MAGIC))
783	update_now = 1;	763	|| (op->type == PLAYER && !(m.flags_ & P_PLAYER))
784		764	|| (op->type == SAFE_GROUND && !(m.flags_ & P_SAFE))
		765	|| (QUERY_FLAG (op, FLAG_ALIVE) && !(m.flags_ & P_IS_ALIVE))
785	if (QUERY_FLAG (op, FLAG_DAMNED) && !(flags & P_NO_CLERIC))	766	|| (QUERY_FLAG (op, FLAG_DAMNED) && !(m.flags_ & P_NO_CLERIC))
786	update_now = 1;
787
788	if (QUERY_FLAG (op, FLAG_ALIVE) && !(flags & P_IS_ALIVE))
789	update_now = 1;
790
791	if (op->type == SAFE_GROUND && !(flags & P_SAFE))
792	update_now = 1;
793
794	if ((move_on | op->move_on) != move_on)	767	|| (m.move_on | op->move_on ) != m.move_on
795	update_now = 1;
796
797	if ((move_off | op->move_off) != move_off)	768	|| (m.move_off | op->move_off ) != m.move_off
798	update_now = 1;	769	|| (m.move_slow | op->move_slow) != m.move_slow
799
800	/* This isn't perfect, but I don't expect a lot of objects to	770	/* This isn't perfect, but I don't expect a lot of objects to
801	* to have move_allow right now.	771	* have move_allow right now.
802	*/	772	*/
803	if (((move_block | op->move_block) & ~op->move_allow) != move_block)	773	|| ((m.move_block | op->move_block) & ~op->move_allow) != m.move_block
804	update_now = 1;	774	|| 1) // the above is not strong enough a test to skip updating. los maybe? TODO (Schmorp)
805		775	m.invalidate ();
806	if ((move_slow | op->move_slow) != move_slow)
807	update_now = 1;
808	}	776	}
809	/* if the object is being removed, we can't make intelligent	777	/* if the object is being removed, we can't make intelligent
810	* decisions, because remove_ob can't really pass the object	778	* decisions, because remove_ob can't really pass the object
811	* that is being removed.	779	* that is being removed.
812	*/	780	*/
813	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)	781	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)
814	update_now = 1;	782	m.invalidate ();
815	else if (action == UP_OBJ_FACE)	783	else if (action == UP_OBJ_FACE)
816	/* Nothing to do for that case */ ;	784	/* Nothing to do for that case */ ;
817	else	785	else
818	LOG (llevError, "update_object called with invalid action: %d\n", action);	786	LOG (llevError, "update_object called with invalid action: %d\n", action);
819		787
820	if (update_now)
821	{
822	SET_MAP_FLAGS (op->map, op->x, op->y, flags | P_NO_ERROR | P_NEED_UPDATE);
823	update_position (op->map, op->x, op->y);
824	}
825
826	if (op->more != NULL)	788	if (op->more)
827	update_object (op->more, action);	789	update_object (op->more, action);
828	}
829
830	object::vector object::mortals;
831	object::vector object::objects; // not yet used
832	object *object::first;
833
834	void object::free_mortals ()
835	{
836	for (AUTODECL (i, mortals.begin ()); i != mortals.end ();)
837	if ((*i)->refcnt)
838	++i; // further delay freeing
839	else
840	{
841	delete *i;
842	mortals.erase (i);
843	}
844
845	static int lastmortals = 0;//D
846
847	if (mortals.size() != lastmortals && lastmortals > 100)//D
848	{
849	lastmortals = mortals.size ();//D
850	LOG (llevDebug, "%d objects in mortal queue\n", lastmortals);//D
851	}
852	}	790	}
853		791
854	object::object ()	792	object::object ()
855	{	793	{
856	SET_FLAG (this, FLAG_REMOVED);	794	SET_FLAG (this, FLAG_REMOVED);
…		…
859	face = blank_face;	797	face = blank_face;
860	}	798	}
861		799
862	object::~object ()	800	object::~object ()
863	{	801	{
		802	unlink ();
		803
864	free_key_values (this);	804	free_key_values (this);
865	}	805	}
866		806
		807	static int object_count;
		808
867	void object::link ()	809	void object::link ()
868	{	810	{
		811	assert (!index);//D
		812	uuid = UUID::gen ();
869	count = ++ob_count;	813	count = ++object_count;
870	uuid = gen_uuid ();
871		814
872	prev = 0;	815	refcnt_inc ();
873	next = object::first;	816	objects.insert (this);
874
875	if (object::first)
876	object::first->prev = this;
877
878	object::first = this;
879	}	817	}
880		818
881	void object::unlink ()	819	void object::unlink ()
882	{	820	{
883	if (this == object::first)	821	if (!index)
884	object::first = next;	822	return;
885		823
886	/* Remove this object from the list of used objects */	824	objects.erase (this);
887	if (prev) prev->next = next;	825	refcnt_dec ();
888	if (next) next->prev = prev;	826	}
889		827
890	prev = 0;	828	void
891	next = 0;	829	object::activate ()
		830	{
		831	/* If already on active list, don't do anything */
		832	if (active)
		833	return;
		834
		835	if (has_active_speed () && flag [FLAG_FREED]) LOG (llevError | logBacktrace, "BUG: tried to activate freed object %s\n", debug_desc ());//D
		836	if (has_active_speed () && flag [FLAG_DEBUG]) LOG (llevError | logBacktrace, "BUG: tried to activate DEBUG object %s\n", debug_desc ());//D temp
		837
		838	if (has_active_speed ())
		839	actives.insert (this);
		840	}
		841
		842	void
		843	object::activate_recursive ()
		844	{
		845	activate ();
		846
		847	for (object *op = inv; op; op = op->below)
		848	op->activate_recursive ();
		849	}
		850
		851	/* This function removes object 'op' from the list of active
		852	* objects.
		853	* This should only be used for style maps or other such
		854	* reference maps where you don't want an object that isn't
		855	* in play chewing up cpu time getting processed.
		856	* The reverse of this is to call update_ob_speed, which
		857	* will do the right thing based on the speed of the object.
		858	*/
		859	void
		860	object::deactivate ()
		861	{
		862	/* If not on the active list, nothing needs to be done */
		863	if (!active)
		864	return;
		865
		866	actives.erase (this);
		867	}
		868
		869	void
		870	object::deactivate_recursive ()
		871	{
		872	for (object *op = inv; op; op = op->below)
		873	op->deactivate_recursive ();
		874
		875	deactivate ();
		876	}
		877
		878	void
		879	object::set_flag_inv (int flag, int value)
		880	{
		881	for (object *op = inv; op; op = op->below)
		882	{
		883	op->flag [flag] = value;
		884	op->set_flag_inv (flag, value);
		885	}
		886	}
		887
		888	/*
		889	* Remove and free all objects in the inventory of the given object.
		890	* object.c ?
		891	*/
		892	void
		893	object::destroy_inv (bool drop_to_ground)
		894	{
		895	// need to check first, because the checks below might segfault
		896	// as we might be on an invalid mapspace and crossfire code
		897	// is too buggy to ensure that the inventory is empty.
		898	// corollary: if you create arrows etc. with stuff in its inventory,
		899	// cf will crash below with off-map x and y
		900	if (!inv)
		901	return;
		902
		903	/* Only if the space blocks everything do we not process -
		904	* if some form of movement is allowed, let objects
		905	* drop on that space.
		906	*/
		907	if (!drop_to_ground
		908	|| !map
		909	|| map->in_memory != MAP_ACTIVE
		910	|| map->no_drop
		911	|| ms ().move_block == MOVE_ALL)
		912	{
		913	while (inv)
		914	inv->destroy ();
		915	}
		916	else
		917	{ /* Put objects in inventory onto this space */
		918	while (inv)
		919	{
		920	object *op = inv;
		921
		922	if (op->flag [FLAG_STARTEQUIP]
		923	|| op->flag [FLAG_NO_DROP]
		924	|| op->type == RUNE
		925	|| op->type == TRAP
		926	|| op->flag [FLAG_IS_A_TEMPLATE]
		927	|| op->flag [FLAG_DESTROY_ON_DEATH])
		928	op->destroy ();
		929	else
		930	map->insert (op, x, y);
		931	}
		932	}
892	}	933	}
893		934
894	object *object::create ()	935	object *object::create ()
895	{	936	{
896	object *op = new object;	937	object *op = new object;
897	op->link ();	938	op->link ();
898	return op;	939	return op;
899	}	940	}
900		941
901	/*	942	static struct freed_map : maptile
902	* free_object() frees everything allocated by an object, removes
903	* it from the list of used objects, and puts it on the list of
904	* free objects. The IS_FREED() flag is set in the object.
905	* The object must have been removed by remove_ob() first for
906	* this function to succeed.
907	*
908	* If destroy_inventory is set, free inventory as well. Else drop items in
909	* inventory to the ground.
910	*/
911	void object::destroy (bool destroy_inventory)
912	{	943	{
913	if (QUERY_FLAG (this, FLAG_FREED))	944	freed_map ()
		945	{
		946	path = "<freed objects map>";
		947	name = "/internal/freed_objects_map";
		948	width = 3;
		949	height = 3;
		950	no_drop = 1;
		951	no_reset = 1;
		952
		953	alloc ();
		954	in_memory = MAP_ACTIVE;
		955	}
		956
		957	~freed_map ()
		958	{
		959	destroy ();
		960	}
		961	} freed_map; // freed objects are moved here to avoid crashes
		962
		963	void
		964	object::do_destroy ()
		965	{
		966	if (flag [FLAG_IS_LINKED])
		967	remove_button_link (this);
		968
		969	if (flag [FLAG_FRIENDLY])
		970	remove_friendly_object (this);
		971
		972	remove ();
		973
		974	attachable::do_destroy ();
		975
		976	deactivate ();
		977	unlink ();
		978
		979	flag [FLAG_FREED] = 1;
		980
		981	// hack to ensure that freed objects still have a valid map
		982	map = &freed_map;
		983	x = 1;
		984	y = 1;
		985
		986	if (more)
		987	{
		988	more->destroy ();
		989	more = 0;
		990	}
		991
		992	head = 0;
		993
		994	// clear those pointers that likely might cause circular references
		995	owner = 0;
		996	enemy = 0;
		997	attacked_by = 0;
		998	current_weapon = 0;
		999	}
		1000
		1001	void
		1002	object::destroy ()
		1003	{
		1004	if (destroyed ())
914	return;	1005	return;
915		1006
916	if (QUERY_FLAG (this, FLAG_FRIENDLY))	1007	if (!is_head () && !head->destroyed ())
917	remove_friendly_object (this);
918
919	if (!QUERY_FLAG (this, FLAG_REMOVED))
920	remove_ob (this);
921
922	SET_FLAG (this, FLAG_FREED);
923
924	// hack to ensure that freed objects still have a valid map
925	{
926	static maptile *freed_map; // freed objects are moved here to avoid crashes
927
928	if (!freed_map)
929	{	1008	{
930	freed_map = get_empty_map (3, 3);	1009	LOG (llevError | logBacktrace, "tried to destroy the tail of an object");
931	freed_map->name = "freed objects map";	1010	head->destroy ();
932	allocate_map (freed_map);	1011	return;
933	}	1012	}
934		1013
935	map = freed_map;	1014	destroy_inv (false);
936	x = 1;
937	y = 1;
938	}
939		1015
940	if (more)	1016	if (is_head ())
941	{	1017	if (sound_destroy)
942	more->destroy (destroy_inventory);	1018	play_sound (sound_destroy);
943	more = 0;	1019	else if (flag [FLAG_MONSTER])
944	}	1020	play_sound (sound_find ("monster_destroy")); // quick hack, too lazy to create a generic mechanism
945		1021
946	if (inv)	1022	attachable::destroy ();
947	{
948	/* Only if the space blocks everything do we not process -
949	* if some form of movement is allowed, let objects
950	* drop on that space.
951	*/
952	if (destroy_inventory || !map || map->in_memory != MAP_IN_MEMORY || GET_MAP_MOVE_BLOCK (map, x, y) == MOVE_ALL)
953	{
954	object *op = inv;
955
956	while (op)
957	{
958	object *tmp = op->below;
959	op->destroy (destroy_inventory);
960	op = tmp;
961	}
962	}
963	else
964	{ /* Put objects in inventory onto this space */
965	object *op = inv;
966
967	while (op)
968	{
969	object *tmp = op->below;
970
971	remove_ob (op);
972
973	if (QUERY_FLAG (op, FLAG_STARTEQUIP)
974	|| QUERY_FLAG (op, FLAG_NO_DROP) || op->type == RUNE || op->type == TRAP || QUERY_FLAG (op, FLAG_IS_A_TEMPLATE))
975	free_object (op);
976	else
977	{
978	op->x = x;
979	op->y = y;
980	insert_ob_in_map (op, map, 0, 0); /* Insert in same map as the envir */
981	}
982
983	op = tmp;
984	}
985	}
986	}
987
988	// clear those pointers that likely might have circular references to us
989	owner = 0;
990	enemy = 0;
991	attacked_by = 0;
992
993	// only relevant for players(?), but make sure of it anyways
994	contr = 0;
995
996	/* Remove object from the active list */
997	speed = 0;
998	update_ob_speed (this);
999
1000	unlink ();
1001
1002	mortals.push_back (this);
1003	}	1023	}
1004		1024
1005	/*	1025	/* op->remove ():
1006	* sub_weight() recursively (outwards) subtracts a number from the
1007	* weight of an object (and what is carried by it's environment(s)).
1008	*/
1009
1010	void
1011	sub_weight (object *op, signed long weight)
1012	{
1013	while (op != NULL)
1014	{
1015	if (op->type == CONTAINER)
1016	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1017
1018	op->carrying -= weight;
1019	op = op->env;
1020	}
1021	}
1022
1023	/* remove_ob(op):
1024	* This function removes the object op from the linked list of objects	1026	* This function removes the object op from the linked list of objects
1025	* which it is currently tied to. When this function is done, the	1027	* which it is currently tied to. When this function is done, the
1026	* object will have no environment. If the object previously had an	1028	* object will have no environment. If the object previously had an
1027	* environment, the x and y coordinates will be updated to	1029	* environment, the x and y coordinates will be updated to
1028	* the previous environment.	1030	* the previous environment.
1029	* Beware: This function is called from the editor as well!
1030	*/	1031	*/
1031
1032	void	1032	void
1033	remove_ob (object *op)	1033	object::do_remove ()
1034	{	1034	{
1035	object *tmp, *last = 0;	1035	object *tmp, *last = 0;
1036	object *otmp;	1036	object *otmp;
1037		1037
1038	int check_walk_off;	1038	if (flag [FLAG_REMOVED])
1039	maptile *m;
1040
1041	sint16 x, y;
1042
1043	if (QUERY_FLAG (op, FLAG_REMOVED))
1044	return;	1039	return;
1045		1040
1046	SET_FLAG (op, FLAG_REMOVED);	1041	INVOKE_OBJECT (REMOVE, this);
1047		1042
1048	if (op->more != NULL)	1043	flag [FLAG_REMOVED] = true;
1049	remove_ob (op->more);	1044
		1045	if (more)
		1046	more->remove ();
1050		1047
1051	/*	1048	/*
1052	* In this case, the object to be removed is in someones	1049	* In this case, the object to be removed is in someones
1053	* inventory.	1050	* inventory.
1054	*/	1051	*/
1055	if (op->env != NULL)	1052	if (env)
1056	{	1053	{
1057	if (op->nrof)	1054	flag [FLAG_REMOVED] = false; // hack around the issue of visible_to checking flag_removed
1058	sub_weight (op->env, op->weight * op->nrof);	1055	if (object *pl = visible_to ())
1059	else	1056	esrv_del_item (pl->contr, count);
1060	sub_weight (op->env, op->weight + op->carrying);	1057	flag [FLAG_REMOVED] = true; // hack around the issue of visible_to checking flag_removed
		1058
		1059	adjust_weight (env, -total_weight ());
		1060
		1061	object *pl = in_player ();
		1062
		1063	/* we set up values so that it could be inserted into
		1064	* the map, but we don't actually do that - it is up
		1065	* to the caller to decide what we want to do.
		1066	*/
		1067	map = env->map;
		1068	x = env->x;
		1069	y = env->y;
		1070
		1071	// make sure cmov optimisation is applicable
		1072	*(above ? &above->below : &env->inv) = below;
		1073	*(below ? &below->above : &above ) = above; // &above is just a dummy
		1074
		1075	above = 0;
		1076	below = 0;
		1077	env = 0;
1061		1078
1062	/* 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
1063	* made to players inventory. If set, avoiding the call	1080	* made to players inventory. If set, avoiding the call
1064	* to save cpu time.	1081	* to save cpu time.
1065	*/	1082	*/
1066	if ((otmp = is_player_inv (op->env)) != NULL && otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))	1083	if (pl)
1067	fix_player (otmp);	1084	if (pl->is_player () && (glow_radius || !QUERY_FLAG (pl, FLAG_NO_FIX_PLAYER)))
		1085	{
		1086	pl->update_stats ();
1068		1087
1069	if (op->above != NULL)	1088	if (glow_radius && pl->is_on_map () && pl->map->darkness)
1070	op->above->below = op->below;	1089	update_all_los (pl->map, pl->x, pl->y);
1071	else	1090	}
1072	op->env->inv = op->below;
1073
1074	if (op->below != NULL)
1075	op->below->above = op->above;
1076
1077	/* we set up values so that it could be inserted into
1078	* the map, but we don't actually do that - it is up
1079	* to the caller to decide what we want to do.
1080	*/
1081	op->x = op->env->x, op->y = op->env->y;
1082	op->map = op->env->map;
1083	op->above = NULL, op->below = NULL;
1084	op->env = NULL;
1085	}	1091	}
1086	else if (op->map)	1092	else if (map)
1087	{	1093	{
1088	x = op->x;	1094	map->dirty = true;
1089	y = op->y;	1095	mapspace &ms = this->ms ();
1090	m = get_map_from_coord (op->map, &x, &y);
1091		1096
1092	if (!m)	1097	if (object *pl = ms.player ())
1093	{	1098	{
1094	LOG (llevError, "remove_ob called when object was on map but appears to not be within valid coordinates? %s (%d,%d)\n",	1099	if (type == PLAYER) // this == pl(!)
1095	op->map->path, op->x, op->y);
1096	/* in old days, we used to set x and y to 0 and continue.
1097	* it seems if we get into this case, something is probablye
1098	* screwed up and should be fixed.
1099	*/	1100	{
1100	abort ();	1101	// leaving a spot always closes any open container on the ground
		1102	if (container && !container->env)
		1103	// this causes spurious floorbox updates, but it ensures
		1104	// that the CLOSE event is being sent.
		1105	close_container ();
		1106
		1107	--map->players;
		1108	map->touch ();
		1109	}
		1110	else if (pl->container == this)
		1111	{
		1112	// removing a container should close it
		1113	close_container ();
		1114	}
		1115
		1116	esrv_del_item (pl->contr, count);
1101	}	1117	}
1102		1118
1103	if (op->map != m)
1104	LOG (llevDebug, "remove_ob: Object not really on map it claimed to be on? %s != %s, %d,%d != %d,%d\n",
1105	op->map->path, m->path, op->x, op->y, x, y);
1106
1107	/* Re did the following section of code - it looks like it had
1108	* lots of logic for things we no longer care about
1109	*/
1110
1111	/* link the object above us */	1119	/* link the object above us */
1112	if (op->above)	1120	// re-link, make sure compiler can easily use cmove
1113	op->above->below = op->below;	1121	*(above ? &above->below : &ms.top) = below;
1114	else	1122	*(below ? &below->above : &ms.bot) = above;
1115	SET_MAP_TOP (m, x, y, op->below); /* we were top, set new top */
1116		1123
1117	/* Relink the object below us, if there is one */	1124	above = 0;
1118	if (op->below)	1125	below = 0;
1119	op->below->above = op->above;	1126
1120	else	1127	ms.invalidate ();
		1128
		1129	if (map->in_memory == MAP_SAVING)
		1130	return;
		1131
		1132	int check_walk_off = !flag [FLAG_NO_APPLY];
		1133
		1134	if (object *pl = ms.player ())
1121	{	1135	{
1122	/* Nothing below, which means we need to relink map object for this space	1136	if (pl->container == this)
1123	* use translated coordinates in case some oddness with map tiling is	1137	/* If a container that the player is currently using somehow gets
1124	* evident	1138	* removed (most likely destroyed), update the player view
		1139	* appropriately.
1125	*/	1140	*/
1126	if (GET_MAP_OB (m, x, y) != op)	1141	pl->close_container ();
1127	{
1128	char *dump = dump_object (op);
1129	LOG (llevError,
1130	"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);
1131	free (dump);
1132	dump = dump_object (GET_MAP_OB (m, x, y));
1133	LOG (llevError, "%s\n", dump);
1134	free (dump);
1135	}
1136		1142
1137	SET_MAP_OB (m, x, y, op->above); /* goes on above it. */	1143	//TODO: the floorbox prev/next might need updating
		1144	//esrv_del_item (pl->contr, count);
		1145	//TODO: update floorbox to preserve ordering
		1146	if (pl->contr->ns)
		1147	pl->contr->ns->floorbox_update ();
1138	}	1148	}
1139		1149
1140	op->above = 0;	1150	for (tmp = ms.bot; tmp; tmp = tmp->above)
1141	op->below = 0;
1142
1143	if (op->map->in_memory == MAP_SAVING)
1144	return;
1145
1146	check_walk_off = !QUERY_FLAG (op, FLAG_NO_APPLY);
1147
1148	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)
1149	{	1151	{
1150	/* No point updating the players look faces if he is the object	1152	/* No point updating the players look faces if he is the object
1151	* being removed.	1153	* being removed.
1152	*/	1154	*/
1153		1155
1154	if (tmp->type == PLAYER && tmp != op)	1156	/* See if object moving off should effect something */
		1157	if (check_walk_off
		1158	&& ((move_type & tmp->move_off)
		1159	&& (move_type & ~tmp->move_off & ~tmp->move_block) == 0))
1155	{	1160	{
1156	/* If a container that the player is currently using somehow gets
1157	* removed (most likely destroyed), update the player view
1158	* appropriately.
1159	*/
1160	if (tmp->container == op)
1161	{
1162	CLEAR_FLAG (op, FLAG_APPLIED);
1163	tmp->container = NULL;
1164	}
1165
1166	tmp->contr->socket.update_look = 1;
1167	}
1168
1169	/* See if player moving off should effect something */
1170	if (check_walk_off
1171	&& ((op->move_type & tmp->move_off)
1172	&& (op->move_type & ~tmp->move_off & ~tmp->move_block) == 0))
1173	{
1174	move_apply (tmp, op, NULL);	1161	move_apply (tmp, this, 0);
1175		1162
1176	if (op->destroyed ())	1163	if (destroyed ())
1177	LOG (llevError, "BUG: remove_ob(): name %s, destroyed leaving object\n", tmp->debug_desc ());	1164	LOG (llevError, "BUG: remove_ob(): name %s, destroyed leaving object\n", tmp->debug_desc ());
1178	}	1165	}
1179		1166
1180	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */
1181
1182	if (tmp->above == tmp)
1183	tmp->above = NULL;
1184
1185	last = tmp;	1167	last = tmp;
1186	}	1168	}
1187		1169
1188	/* last == NULL of there are no objects on this space */	1170	if (map->darkness && affects_los ())
1189	if (last == NULL)
1190	{
1191	/* set P_NEED_UPDATE, otherwise update_position will complain. In theory,
1192	* we could preserve the flags (GET_MAP_FLAGS), but update_position figures
1193	* those out anyways, and if there are any flags set right now, they won't
1194	* be correct anyways.
1195	*/
1196	SET_MAP_FLAGS (op->map, op->x, op->y, P_NEED_UPDATE);
1197	update_position (op->map, op->x, op->y);
1198	}
1199	else
1200	update_object (last, UP_OBJ_REMOVE);
1201
1202	if (QUERY_FLAG (op, FLAG_BLOCKSVIEW) || (op->glow_radius != 0))
1203	update_all_los (op->map, op->x, op->y);	1171	update_all_los (map, x, y);
1204	}	1172	}
1205	}	1173	}
1206		1174
1207	/*	1175	/*
1208	* merge_ob(op,top):	1176	* merge_ob(op,top):
…		…
1216	merge_ob (object *op, object *top)	1184	merge_ob (object *op, object *top)
1217	{	1185	{
1218	if (!op->nrof)	1186	if (!op->nrof)
1219	return 0;	1187	return 0;
1220		1188
1221	if (top == NULL)	1189	if (!top)
1222	for (top = op; top != NULL && top->above != NULL; top = top->above);	1190	for (top = op; top && top->above; top = top->above)
		1191	;
1223		1192
1224	for (; top != NULL; top = top->below)	1193	for (; top; top = top->below)
1225	{	1194	if (object::can_merge (op, top))
1226	if (top == op)
1227	continue;
1228	if (CAN_MERGE (op, top))
1229	{	1195	{
1230	top->nrof += op->nrof;	1196	top->nrof += op->nrof;
1231		1197
1232	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/	1198	if (object *pl = top->visible_to ())
1233	op->weight = 0; /* Don't want any adjustements now */	1199	esrv_update_item (UPD_NROF, pl, top);
1234	remove_ob (op);	1200
1235	free_object (op);	1201	op->weight = 0; // cancel the addition above
		1202	op->carrying = 0; // must be 0 already
		1203
		1204	op->destroy ();
		1205
1236	return top;	1206	return top;
1237	}	1207	}
1238	}
1239		1208
1240	return 0;	1209	return 0;
1241	}	1210	}
1242		1211
		1212	void
		1213	object::expand_tail ()
		1214	{
		1215	if (more)
		1216	return;
		1217
		1218	object *prev = this;
		1219
		1220	for (archetype *at = (archetype *)arch->more; at; at = (archetype *)at->more)
		1221	{
		1222	object *op = arch_to_object (at);
		1223
		1224	op->name = name;
		1225	op->name_pl = name_pl;
		1226	op->title = title;
		1227
		1228	op->head = this;
		1229	prev->more = op;
		1230
		1231	prev = op;
		1232	}
		1233	}
		1234
1243	/*	1235	/*
1244	* same as insert_ob_in_map except it handle separate coordinates and do a clean	1236	* same as insert_ob_in_map except it handles separate coordinates and does a clean
1245	* job preparing multi-part monsters	1237	* job preparing multi-part monsters.
1246	*/	1238	*/
1247	object *	1239	object *
1248	insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)	1240	insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)
1249	{	1241	{
1250	object *tmp;	1242	op->remove ();
1251		1243
1252	if (op->head)
1253	op = op->head;
1254
1255	for (tmp = op; tmp; tmp = tmp->more)	1244	for (object *tmp = op->head_ (); tmp; tmp = tmp->more)
1256	{	1245	{
1257	tmp->x = x + tmp->arch->clone.x;	1246	tmp->x = x + tmp->arch->x;
1258	tmp->y = y + tmp->arch->clone.y;	1247	tmp->y = y + tmp->arch->y;
1259	}	1248	}
1260		1249
1261	return insert_ob_in_map (op, m, originator, flag);	1250	return insert_ob_in_map (op, m, originator, flag);
1262	}	1251	}
1263		1252
…		…
1279	* Return value:	1268	* Return value:
1280	* new object if 'op' was merged with other object	1269	* new object if 'op' was merged with other object
1281	* NULL if 'op' was destroyed	1270	* NULL if 'op' was destroyed
1282	* just 'op' otherwise	1271	* just 'op' otherwise
1283	*/	1272	*/
1284
1285	object *	1273	object *
1286	insert_ob_in_map (object *op, maptile *m, object *originator, int flag)	1274	insert_ob_in_map (object *op, maptile *m, object *originator, int flag)
1287	{	1275	{
1288	object *tmp, *top, *floor = NULL;	1276	op->remove ();
1289	sint16 x, y;
1290		1277
1291	if (QUERY_FLAG (op, FLAG_FREED))	1278	if (m == &freed_map)//D TODO: remove soon
1292	{	1279	{//D
1293	LOG (llevError, "Trying to insert freed object!\n");	1280	LOG (llevError | logBacktrace, "tries to insret object on freed objects map: %s", op->debug_desc ());//D
1294	return NULL;
1295	}	1281	}//D
1296
1297	if (m == NULL)
1298	{
1299	char *dump = dump_object (op);
1300	LOG (llevError, "Trying to insert in null-map!\n%s\n", dump);
1301	free (dump);
1302	return op;
1303	}
1304
1305	if (out_of_map (m, op->x, op->y))
1306	{
1307	char *dump = dump_object (op);
1308	LOG (llevError, "Trying to insert object outside the map.\n%s\n", dump);
1309	#ifdef MANY_CORES
1310	/* Better to catch this here, as otherwise the next use of this object
1311	* is likely to cause a crash. Better to find out where it is getting
1312	* improperly inserted.
1313	*/
1314	abort ();
1315	#endif
1316	free (dump);
1317	return op;
1318	}
1319
1320	if (!QUERY_FLAG (op, FLAG_REMOVED))
1321	{
1322	char *dump = dump_object (op);
1323	LOG (llevError, "Trying to insert (map) inserted object.\n%s\n", dump);
1324	free (dump);
1325	return op;
1326	}
1327
1328	if (op->more != NULL)
1329	{
1330	/* The part may be on a different map. */
1331
1332	object *more = op->more;
1333
1334	/* We really need the caller to normalize coordinates - if
1335	* we set the map, that doesn't work if the location is within
1336	* a map and this is straddling an edge. So only if coordinate
1337	* is clear wrong do we normalize it.
1338	*/
1339	if (OUT_OF_REAL_MAP (more->map, more->x, more->y))
1340	more->map = get_map_from_coord (m, &more->x, &more->y);
1341	else if (!more->map)
1342	{
1343	/* For backwards compatibility - when not dealing with tiled maps,
1344	* more->map should always point to the parent.
1345	*/
1346	more->map = m;
1347	}
1348
1349	if (insert_ob_in_map (more, more->map, originator, flag) == NULL)
1350	{
1351	if (!op->head)
1352	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");
1353
1354	return NULL;
1355	}
1356	}
1357
1358	CLEAR_FLAG (op, FLAG_REMOVED);
1359		1282
1360	/* Ideally, the caller figures this out. However, it complicates a lot	1283	/* Ideally, the caller figures this out. However, it complicates a lot
1361	* of areas of callers (eg, anything that uses find_free_spot would now	1284	* of areas of callers (eg, anything that uses find_free_spot would now
1362	* need extra work	1285	* need extra work
1363	*/	1286	*/
1364	op->map = get_map_from_coord (m, &op->x, &op->y);	1287	if (!xy_normalise (m, op->x, op->y))
1365	x = op->x;	1288	{
1366	y = op->y;	1289	op->head_ ()->destroy ();// remove head_ once all tail object destroyers found
		1290	return 0;
		1291	}
		1292
		1293	if (object *more = op->more)
		1294	if (!insert_ob_in_map (more, m, originator, flag))
		1295	return 0;
		1296
		1297	CLEAR_FLAG (op, FLAG_REMOVED);
		1298
		1299	op->map = m;
		1300	mapspace &ms = op->ms ();
1367		1301
1368	/* this has to be done after we translate the coordinates.	1302	/* this has to be done after we translate the coordinates.
1369	*/	1303	*/
1370	if (op->nrof && !(flag & INS_NO_MERGE))	1304	if (op->nrof && !(flag & INS_NO_MERGE))
1371	for (tmp = GET_MAP_OB (op->map, x, y); tmp != NULL; tmp = tmp->above)	1305	for (object *tmp = ms.bot; tmp; tmp = tmp->above)
1372	if (CAN_MERGE (op, tmp))	1306	if (object::can_merge (op, tmp))
1373	{	1307	{
		1308	// TODO: we actually want to update tmp, not op,
		1309	// but some caller surely breaks when we return tmp
		1310	// from here :/
1374	op->nrof += tmp->nrof;	1311	op->nrof += tmp->nrof;
1375	remove_ob (tmp);	1312	tmp->destroy ();
1376	free_object (tmp);
1377	}	1313	}
1378		1314
1379	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */	1315	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */
1380	CLEAR_FLAG (op, FLAG_INV_LOCKED);	1316	CLEAR_FLAG (op, FLAG_INV_LOCKED);
1381		1317
…		…
1388	{	1324	{
1389	LOG (llevError, "insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");	1325	LOG (llevError, "insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");
1390	abort ();	1326	abort ();
1391	}	1327	}
1392		1328
		1329	if (!originator->is_on_map ())
		1330	LOG (llevDebug | logBacktrace, "insert_ob_in_map(%s) called with INS_BELOW_ORIGINATOR when originator '%s' not on map",
		1331	op->debug_desc (), originator->debug_desc ());
		1332
1393	op->above = originator;	1333	op->above = originator;
1394	op->below = originator->below;	1334	op->below = originator->below;
1395
1396	if (op->below)
1397	op->below->above = op;
1398	else
1399	SET_MAP_OB (op->map, op->x, op->y, op);
1400
1401	/* since *below* originator, no need to update top */
1402	originator->below = op;	1335	originator->below = op;
		1336
		1337	*(op->below ? &op->below->above : &ms.bot) = op;
1403	}	1338	}
1404	else	1339	else
1405	{	1340	{
		1341	object *floor = 0;
		1342	object *top = ms.top;
		1343
1406	/* If there are other objects, then */	1344	/* If there are other objects, then */
1407	if ((!(flag & INS_MAP_LOAD)) && ((top = GET_MAP_OB (op->map, op->x, op->y)) != NULL))	1345	if (top)
1408	{	1346	{
1409	object *last = NULL;
1410
1411	/*	1347	/*
1412	* If there are multiple objects on this space, we do some trickier handling.	1348	* If there are multiple objects on this space, we do some trickier handling.
1413	* We've already dealt with merging if appropriate.	1349	* We've already dealt with merging if appropriate.
1414	* Generally, we want to put the new object on top. But if	1350	* Generally, we want to put the new object on top. But if
1415	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last	1351	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last
…		…
1418	* once we get to them. This reduces the need to traverse over all of	1354	* once we get to them. This reduces the need to traverse over all of
1419	* them when adding another one - this saves quite a bit of cpu time	1355	* them when adding another one - this saves quite a bit of cpu time
1420	* when lots of spells are cast in one area. Currently, it is presumed	1356	* when lots of spells are cast in one area. Currently, it is presumed
1421	* that flying non pickable objects are spell objects.	1357	* that flying non pickable objects are spell objects.
1422	*/	1358	*/
1423		1359	for (object *tmp = ms.bot; tmp; tmp = tmp->above)
1424	while (top != NULL)
1425	{	1360	{
1426	if (QUERY_FLAG (top, FLAG_IS_FLOOR) || QUERY_FLAG (top, FLAG_OVERLAY_FLOOR))	1361	if (QUERY_FLAG (tmp, FLAG_IS_FLOOR) || QUERY_FLAG (tmp, FLAG_OVERLAY_FLOOR))
1427	floor = top;	1362	floor = tmp;
1428		1363
1429	if (QUERY_FLAG (top, FLAG_NO_PICK) && (top->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (top, FLAG_IS_FLOOR))	1364	if (QUERY_FLAG (tmp, FLAG_NO_PICK) && (tmp->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (tmp, FLAG_IS_FLOOR))
1430	{	1365	{
1431	/* We insert above top, so we want this object below this */	1366	/* We insert above top, so we want this object below this */
1432	top = top->below;	1367	top = tmp->below;
1433	break;	1368	break;
1434	}	1369	}
1435		1370
1436	last = top;
1437	top = top->above;	1371	top = tmp;
1438	}	1372	}
1439
1440	/* Don't want top to be NULL, so set it to the last valid object */
1441	top = last;
1442		1373
1443	/* We let update_position deal with figuring out what the space	1374	/* We let update_position deal with figuring out what the space
1444	* looks like instead of lots of conditions here.	1375	* looks like instead of lots of conditions here.
1445	* makes things faster, and effectively the same result.	1376	* makes things faster, and effectively the same result.
1446	*/	1377	*/
1447		1378
1448	/* Have object 'fall below' other objects that block view.	1379	/* Have object 'fall below' other objects that block view.
1449	* Unless those objects are exits, type 66	1380	* Unless those objects are exits.
1450	* If INS_ON_TOP is used, don't do this processing	1381	* If INS_ON_TOP is used, don't do this processing
1451	* Need to find the object that in fact blocks view, otherwise	1382	* Need to find the object that in fact blocks view, otherwise
1452	* stacking is a bit odd.	1383	* stacking is a bit odd.
1453	*/	1384	*/
1454	if (!(flag & INS_ON_TOP) &&	1385	if (!(flag & INS_ON_TOP)
1455	(get_map_flags (op->map, NULL, op->x, op->y, NULL, NULL) & P_BLOCKSVIEW) && (op->face && !op->face->visibility))	1386	&& ms.flags () & P_BLOCKSVIEW
		1387	&& (op->face && !faces [op->face].visibility))
1456	{	1388	{
		1389	object *last;
		1390
1457	for (last = top; last != floor; last = last->below)	1391	for (last = top; last != floor; last = last->below)
1458	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))	1392	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))
1459	break;	1393	break;
		1394
1460	/* Check to see if we found the object that blocks view,	1395	/* Check to see if we found the object that blocks view,
1461	* and make sure we have a below pointer for it so that	1396	* and make sure we have a below pointer for it so that
1462	* we can get inserted below this one, which requires we	1397	* we can get inserted below this one, which requires we
1463	* set top to the object below us.	1398	* set top to the object below us.
1464	*/	1399	*/
1465	if (last && last->below && last != floor)	1400	if (last && last->below && last != floor)
1466	top = last->below;	1401	top = last->below;
1467	}	1402	}
1468	} /* If objects on this space */	1403	} /* If objects on this space */
1469		1404
1470	if (flag & INS_MAP_LOAD)
1471	top = GET_MAP_TOP (op->map, op->x, op->y);
1472
1473	if (flag & INS_ABOVE_FLOOR_ONLY)	1405	if (flag & INS_ABOVE_FLOOR_ONLY)
1474	top = floor;	1406	top = floor;
1475		1407
1476	/* Top is the object that our object (op) is going to get inserted above.	1408	// insert object above top, or bottom-most if top = 0
1477	*/
1478
1479	/* First object on this space */
1480	if (!top)	1409	if (!top)
1481	{	1410	{
1482	op->above = GET_MAP_OB (op->map, op->x, op->y);
1483
1484	if (op->above)
1485	op->above->below = op;
1486
1487	op->below = NULL;	1411	op->below = 0;
1488	SET_MAP_OB (op->map, op->x, op->y, op);	1412	op->above = ms.bot;
		1413	ms.bot = op;
		1414
		1415	*(op->above ? &op->above->below : &ms.top) = op;
1489	}	1416	}
1490	else	1417	else
1491	{ /* get inserted into the stack above top */	1418	{
1492	op->above = top->above;	1419	op->above = top->above;
1493
1494	if (op->above)
1495	op->above->below = op;	1420	top->above = op;
1496		1421
1497	op->below = top;	1422	op->below = top;
1498	top->above = op;	1423	*(op->above ? &op->above->below : &ms.top) = op;
1499	}	1424	}
1500		1425	}
1501	if (op->above == NULL)
1502	SET_MAP_TOP (op->map, op->x, op->y, op);
1503	} /* else not INS_BELOW_ORIGINATOR */
1504		1426
1505	if (op->type == PLAYER)	1427	if (op->type == PLAYER)
		1428	{
1506	op->contr->do_los = 1;	1429	op->contr->do_los = 1;
		1430	++op->map->players;
		1431	op->map->touch ();
		1432	}
1507		1433
1508	/* If we have a floor, we know the player, if any, will be above	1434	op->map->dirty = true;
1509	* it, so save a few ticks and start from there.	1435
1510	*/	1436	if (object *pl = ms.player ())
1511	if (!(flag & INS_MAP_LOAD))	1437	//TODO: the floorbox prev/next might need updating
1512	for (tmp = floor ? floor : GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)	1438	//esrv_send_item (pl, op);
1513	if (tmp->type == PLAYER)	1439	//TODO: update floorbox to preserve ordering
1514	tmp->contr->socket.update_look = 1;	1440	if (pl->contr->ns)
		1441	pl->contr->ns->floorbox_update ();
1515		1442
1516	/* If this object glows, it may affect lighting conditions that are	1443	/* If this object glows, it may affect lighting conditions that are
1517	* visible to others on this map. But update_all_los is really	1444	* visible to others on this map. But update_all_los is really
1518	* an inefficient way to do this, as it means los for all players	1445	* an inefficient way to do this, as it means los for all players
1519	* on the map will get recalculated. The players could very well	1446	* on the map will get recalculated. The players could very well
1520	* be far away from this change and not affected in any way -	1447	* be far away from this change and not affected in any way -
1521	* this should get redone to only look for players within range,	1448	* this should get redone to only look for players within range,
1522	* or just updating the P_NEED_UPDATE for spaces within this area	1449	* or just updating the P_UPTODATE for spaces within this area
1523	* of effect may be sufficient.	1450	* of effect may be sufficient.
1524	*/	1451	*/
1525	if (MAP_DARKNESS (op->map) && (op->glow_radius != 0))	1452	if (op->affects_los () && op->map->darkness)
		1453	{
		1454	op->ms ().invalidate ();
1526	update_all_los (op->map, op->x, op->y);	1455	update_all_los (op->map, op->x, op->y);
		1456	}
1527		1457
1528	/* updates flags (blocked, alive, no magic, etc) for this map space */	1458	/* updates flags (blocked, alive, no magic, etc) for this map space */
1529	update_object (op, UP_OBJ_INSERT);	1459	update_object (op, UP_OBJ_INSERT);
1530		1460
		1461	INVOKE_OBJECT (INSERT, op);
		1462
1531	/* Don't know if moving this to the end will break anything. However,	1463	/* Don't know if moving this to the end will break anything. However,
1532	* we want to have update_look set above before calling this.	1464	* we want to have floorbox_update called before calling this.
1533	*	1465	*
1534	* check_move_on() must be after this because code called from	1466	* check_move_on() must be after this because code called from
1535	* check_move_on() depends on correct map flags (so functions like	1467	* check_move_on() depends on correct map flags (so functions like
1536	* blocked() and wall() work properly), and these flags are updated by	1468	* blocked() and wall() work properly), and these flags are updated by
1537	* update_object().	1469	* update_object().
1538	*/	1470	*/
1539		1471
1540	/* if this is not the head or flag has been passed, don't check walk on status */	1472	/* if this is not the head or flag has been passed, don't check walk on status */
1541	if (!(flag & INS_NO_WALK_ON) && !op->head)	1473	if (!(flag & INS_NO_WALK_ON) && op->head_ () == op)
1542	{	1474	{
1543	if (check_move_on (op, originator))	1475	if (check_move_on (op, originator))
1544	return NULL;	1476	return 0;
1545		1477
1546	/* If we are a multi part object, lets work our way through the check	1478	/* If we are a multi part object, lets work our way through the check
1547	* walk on's.	1479	* walk on's.
1548	*/	1480	*/
1549	for (tmp = op->more; tmp != NULL; tmp = tmp->more)	1481	for (object *tmp = op->more; tmp; tmp = tmp->more)
1550	if (check_move_on (tmp, originator))	1482	if (check_move_on (tmp, originator))
1551	return NULL;	1483	return 0;
1552	}	1484	}
1553		1485
1554	return op;	1486	return op;
1555	}	1487	}
1556		1488
1557	/* this function inserts an object in the map, but if it	1489	/* this function inserts an object in the map, but if it
1558	* finds an object of its own type, it'll remove that one first.	1490	* finds an object of its own type, it'll remove that one first.
1559	* op is the object to insert it under: supplies x and the map.	1491	* op is the object to insert it under: supplies x and the map.
1560	*/	1492	*/
1561	void	1493	void
1562	replace_insert_ob_in_map (const char *arch_string, object *op)	1494	replace_insert_ob_in_map (const char *arch_string, object *op)
1563	{	1495	{
1564	object *
1565	tmp;
1566	object *
1567	tmp1;
1568
1569	/* first search for itself and remove any old instances */	1496	/* first search for itself and remove any old instances */
1570		1497
1571	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)	1498	for (object *tmp = op->ms ().bot; tmp; tmp = tmp->above)
1572	{
1573	if (!strcmp (tmp->arch->name, arch_string)) /* same archetype */	1499	if (!strcmp (tmp->arch->archname, arch_string)) /* same archetype */
1574	{	1500	tmp->destroy ();
1575	remove_ob (tmp);
1576	free_object (tmp);
1577	}
1578	}
1579		1501
1580	tmp1 = arch_to_object (archetype::find (arch_string));	1502	object *tmp = arch_to_object (archetype::find (arch_string));
1581		1503
1582	tmp1->x = op->x;	1504	tmp->x = op->x;
1583	tmp1->y = op->y;	1505	tmp->y = op->y;
		1506
1584	insert_ob_in_map (tmp1, op->map, op, 0);	1507	insert_ob_in_map (tmp, op->map, op, 0);
1585	}	1508	}
1586
1587	/*
1588	* get_split_ob(ob,nr) splits up ob into two parts. The part which
1589	* is returned contains nr objects, and the remaining parts contains
1590	* the rest (or is removed and freed if that number is 0).
1591	* On failure, NULL is returned, and the reason put into the
1592	* global static errmsg array.
1593	*/
1594		1509
1595	object *	1510	object *
1596	get_split_ob (object *orig_ob, uint32 nr)	1511	object::insert_at (object *where, object *originator, int flags)
1597	{	1512	{
1598	object *	1513	if (where->env)
1599	newob;	1514	return where->env->insert (this);
1600	int	1515	else
1601	is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);	1516	return where->map->insert (this, where->x, where->y, originator, flags);
1602
1603	if (orig_ob->nrof < nr)
1604	{
1605	sprintf (errmsg, "There are only %d %ss.", orig_ob->nrof ? orig_ob->nrof : 1, &orig_ob->name);
1606	return NULL;
1607	}
1608
1609	newob = object_create_clone (orig_ob);
1610
1611	if ((orig_ob->nrof -= nr) < 1)
1612	{
1613	if (!is_removed)
1614	remove_ob (orig_ob);
1615	free_object2 (orig_ob, 1);
1616	}
1617	else if (!is_removed)
1618	{
1619	if (orig_ob->env != NULL)
1620	sub_weight (orig_ob->env, orig_ob->weight * nr);
1621	if (orig_ob->env == NULL && orig_ob->map->in_memory != MAP_IN_MEMORY)
1622	{
1623	strcpy (errmsg, "Tried to split object whose map is not in memory.");
1624	LOG (llevDebug, "Error, Tried to split object whose map is not in memory.\n");
1625	return NULL;
1626	}
1627	}
1628
1629	newob->nrof = nr;
1630
1631	return newob;
1632	}	1517	}
1633		1518
1634	/*	1519	/*
1635	* decrease_ob_nr(object, number) decreases a specified number from	1520	* decrease(object, number) decreases a specified number from
1636	* the amount of an object. If the amount reaches 0, the object	1521	* the amount of an object. If the amount reaches 0, the object
1637	* is subsequently removed and freed.	1522	* is subsequently removed and freed.
1638	*	1523	*
1639	* Return value: 'op' if something is left, NULL if the amount reached 0	1524	* Return value: 'op' if something is left, NULL if the amount reached 0
1640	*/	1525	*/
		1526	bool
		1527	object::decrease (sint32 nr)
		1528	{
		1529	if (!nr)
		1530	return true;
1641		1531
		1532	nr = min (nr, nrof);
		1533
		1534	if (nrof > nr)
		1535	{
		1536	nrof -= nr;
		1537	adjust_weight (env, -weight * max (1, nr)); // carrying == 0
		1538
		1539	if (object *pl = visible_to ())
		1540	esrv_update_item (UPD_NROF, pl, this);
		1541
		1542	return true;
		1543	}
		1544	else
		1545	{
		1546	destroy ();
		1547	return false;
		1548	}
		1549	}
		1550
		1551	/*
		1552	* split(ob,nr) splits up ob into two parts. The part which
		1553	* is returned contains nr objects, and the remaining parts contains
		1554	* the rest (or is removed and returned if that number is 0).
		1555	* On failure, NULL is returned.
		1556	*/
1642	object *	1557	object *
1643	decrease_ob_nr (object *op, uint32 i)	1558	object::split (sint32 nr)
1644	{	1559	{
1645	object *tmp;	1560	int have = number_of ();
1646	player *pl;
1647		1561
1648	if (i == 0) /* objects with op->nrof require this check */	1562	if (have < nr)
1649	return op;	1563	return 0;
1650		1564	else if (have == nr)
1651	if (i > op->nrof)
1652	i = op->nrof;
1653
1654	if (QUERY_FLAG (op, FLAG_REMOVED))
1655	op->nrof -= i;
1656	else if (op->env != NULL)
1657	{	1565	{
1658	/* is this object in the players inventory, or sub container
1659	* therein?
1660	*/
1661	tmp = is_player_inv (op->env);
1662	/* nope. Is this a container the player has opened?
1663	* If so, set tmp to that player.
1664	* IMO, searching through all the players will mostly
1665	* likely be quicker than following op->env to the map,
1666	* and then searching the map for a player.
1667	*/
1668	if (!tmp)
1669	{
1670	for (pl = first_player; pl; pl = pl->next)
1671	if (pl->ob->container == op->env)
1672	break;
1673	if (pl)
1674	tmp = pl->ob;
1675	else
1676	tmp = NULL;
1677	}
1678
1679	if (i < op->nrof)
1680	{
1681	sub_weight (op->env, op->weight * i);
1682	op->nrof -= i;
1683	if (tmp)
1684	{
1685	esrv_send_item (tmp, op);
1686	}
1687	}
1688	else
1689	{
1690	remove_ob (op);	1566	remove ();
1691	op->nrof = 0;	1567	return this;
1692	if (tmp)
1693	{
1694	esrv_del_item (tmp->contr, op->count);
1695	}
1696	}
1697	}	1568	}
1698	else	1569	else
1699	{	1570	{
1700	object *above = op->above;	1571	decrease (nr);
1701		1572
1702	if (i < op->nrof)	1573	object *op = deep_clone ();
1703	op->nrof -= i;	1574	op->nrof = nr;
1704	else
1705	{
1706	remove_ob (op);
1707	op->nrof = 0;
1708	}
1709
1710	/* Since we just removed op, op->above is null */
1711	for (tmp = above; tmp != NULL; tmp = tmp->above)
1712	if (tmp->type == PLAYER)
1713	{
1714	if (op->nrof)
1715	esrv_send_item (tmp, op);
1716	else
1717	esrv_del_item (tmp->contr, op->count);
1718	}
1719	}
1720
1721	if (op->nrof)
1722	return op;	1575	return op;
1723	else
1724	{	1576	}
1725	free_object (op);
1726	return NULL;
1727	}
1728	}	1577	}
1729
1730	/*
1731	* add_weight(object, weight) adds the specified weight to an object,
1732	* and also updates how much the environment(s) is/are carrying.
1733	*/
1734
1735	void
1736	add_weight (object *op, signed long weight)
1737	{
1738	while (op != NULL)
1739	{
1740	if (op->type == CONTAINER)
1741	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1742
1743	op->carrying += weight;
1744	op = op->env;
1745	}
1746	}
1747
1748	/*
1749	* insert_ob_in_ob(op,environment):
1750	* This function inserts the object op in the linked list
1751	* inside the object environment.
1752	*
1753	* Eneq(@csd.uu.se): Altered insert_ob_in_ob to make things picked up enter
1754	* the inventory at the last position or next to other objects of the same
1755	* type.
1756	* Frank: Now sorted by type, archetype and magic!
1757	*
1758	* The function returns now pointer to inserted item, and return value can
1759	* be != op, if items are merged. -Tero
1760	*/
1761		1578
1762	object *	1579	object *
1763	insert_ob_in_ob (object *op, object *where)	1580	insert_ob_in_ob (object *op, object *where)
1764	{	1581	{
1765	object *	1582	if (!where)
1766	tmp, *
1767	otmp;
1768
1769	if (!QUERY_FLAG (op, FLAG_REMOVED))
1770	{
1771	char *dump = dump_object (op);
1772	LOG (llevError, "Trying to insert (ob) inserted object.\n%s\n", dump);
1773	free (dump);
1774	return op;
1775	}
1776
1777	if (where == NULL)
1778	{	1583	{
1779	char *dump = dump_object (op);	1584	char *dump = dump_object (op);
1780	LOG (llevError, "Trying to put object in NULL.\n%s\n", dump);	1585	LOG (llevError, "Trying to put object in NULL.\n%s\n", dump);
1781	free (dump);	1586	free (dump);
1782	return op;	1587	return op;
1783	}	1588	}
1784		1589
1785	if (where->head)	1590	if (where->head_ () != where)
1786	{	1591	{
1787	LOG (llevDebug, "Warning: Tried to insert object wrong part of multipart object.\n");	1592	LOG (llevError | logBacktrace, "Warning: Tried to insert object into wrong part of multipart object.\n");
1788	where = where->head;	1593	where = where->head;
1789	}	1594	}
1790		1595
		1596	return where->insert (op);
		1597	}
		1598
		1599	/*
		1600	* env->insert (op)
		1601	* This function inserts the object op in the linked list
		1602	* inside the object environment.
		1603	*
		1604	* The function returns now pointer to inserted item, and return value can
		1605	* be != op, if items are merged. -Tero
		1606	*/
		1607	object *
		1608	object::insert (object *op)
		1609	{
1791	if (op->more)	1610	if (op->more)
1792	{	1611	{
1793	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);	1612	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);
1794	return op;	1613	return op;
1795	}	1614	}
1796		1615
1797	CLEAR_FLAG (op, FLAG_OBJ_ORIGINAL);	1616	op->remove ();
1798	CLEAR_FLAG (op, FLAG_REMOVED);	1617
		1618	op->flag [FLAG_OBJ_ORIGINAL] = 0;
		1619
1799	if (op->nrof)	1620	if (op->nrof)
1800	{
1801	for (tmp = where->inv; tmp != NULL; tmp = tmp->below)	1621	for (object *tmp = inv; tmp; tmp = tmp->below)
1802	if (CAN_MERGE (tmp, op))	1622	if (object::can_merge (tmp, op))
1803	{	1623	{
1804	/* return the original object and remove inserted object	1624	/* return the original object and remove inserted object
1805	(client needs the original object) */	1625	(client needs the original object) */
1806	tmp->nrof += op->nrof;	1626	tmp->nrof += op->nrof;
1807	/* Weight handling gets pretty funky. Since we are adding to	1627
1808	* tmp->nrof, we need to increase the weight.	1628	if (object *pl = tmp->visible_to ())
1809	*/	1629	esrv_update_item (UPD_NROF, pl, tmp);
1810	add_weight (where, op->weight * op->nrof);	1630
1811	SET_FLAG (op, FLAG_REMOVED);	1631	adjust_weight (this, op->total_weight ());
1812	free_object (op); /* free the inserted object */	1632
		1633	op->destroy ();
1813	op = tmp;	1634	op = tmp;
1814	remove_ob (op); /* and fix old object's links */	1635	goto inserted;
1815	CLEAR_FLAG (op, FLAG_REMOVED);
1816	break;
1817	}	1636	}
1818		1637
1819	/* I assume combined objects have no inventory	1638	op->owner = 0; // it's his/hers now. period.
1820	* We add the weight - this object could have just been removed
1821	* (if it was possible to merge). calling remove_ob will subtract
1822	* the weight, so we need to add it in again, since we actually do
1823	* the linking below
1824	*/
1825	add_weight (where, op->weight * op->nrof);
1826	}
1827	else
1828	add_weight (where, (op->weight + op->carrying));
1829
1830	otmp = is_player_inv (where);
1831	if (otmp && otmp->contr != NULL)
1832	{
1833	if (!QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1834	fix_player (otmp);
1835	}
1836
1837	op->map = NULL;	1639	op->map = 0;
1838	op->env = where;	1640	op->x = 0;
		1641	op->y = 0;
		1642
1839	op->above = NULL;	1643	op->above = 0;
1840	op->below = NULL;	1644	op->below = inv;
1841	op->x = 0, op->y = 0;	1645	op->env = this;
1842		1646
		1647	if (inv)
		1648	inv->above = op;
		1649
		1650	inv = op;
		1651
		1652	op->flag [FLAG_REMOVED] = 0;
		1653
		1654	if (object *pl = op->visible_to ())
		1655	esrv_send_item (pl, op);
		1656
		1657	adjust_weight (this, op->total_weight ());
		1658
		1659	inserted:
1843	/* reset the light list and los of the players on the map */	1660	/* reset the light list and los of the players on the map */
1844	if ((op->glow_radius != 0) && where->map)	1661	if (op->glow_radius && is_on_map () && map->darkness)
1845	{
1846	#ifdef DEBUG_LIGHTS
1847	LOG (llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n", op->name);
1848	#endif /* DEBUG_LIGHTS */
1849	if (MAP_DARKNESS (where->map))
1850	update_all_los (where->map, where->x, where->y);
1851	}	1662	{
1852		1663	update_stats ();
1853	/* Client has no idea of ordering so lets not bother ordering it here.	1664	update_all_los (map, x, y);
1854	* It sure simplifies this function...
1855	*/
1856	if (where->inv == NULL)
1857	where->inv = op;
1858	else
1859	{	1665	}
1860	op->below = where->inv;	1666	else if (type == PLAYER && !flag [FLAG_NO_FIX_PLAYER])
1861	op->below->above = op;	1667	// if this is a player's inventory, update stats
1862	where->inv = op;	1668	update_stats ();
1863	}	1669
		1670	INVOKE_OBJECT (INSERT, this);
		1671
1864	return op;	1672	return op;
1865	}	1673	}
1866		1674
1867	/*	1675	/*
1868	* Checks if any objects has a move_type that matches objects	1676	* Checks if any objects has a move_type that matches objects
…		…
1882	*	1690	*
1883	* MSW 2001-07-08: Check all objects on space, not just those below	1691	* MSW 2001-07-08: Check all objects on space, not just those below
1884	* object being inserted. insert_ob_in_map may not put new objects	1692	* object being inserted. insert_ob_in_map may not put new objects
1885	* on top.	1693	* on top.
1886	*/	1694	*/
1887
1888	int	1695	int
1889	check_move_on (object *op, object *originator)	1696	check_move_on (object *op, object *originator)
1890	{	1697	{
1891	object *tmp;	1698	object *tmp;
1892	maptile *m = op->map;	1699	maptile *m = op->map;
…		…
1919		1726
1920	/* The objects have to be checked from top to bottom.	1727	/* The objects have to be checked from top to bottom.
1921	* Hence, we first go to the top:	1728	* Hence, we first go to the top:
1922	*/	1729	*/
1923		1730
1924	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL && tmp->above != NULL; tmp = tmp->above)	1731	for (tmp = op->ms ().bot; tmp && tmp->above; tmp = tmp->above)
1925	{	1732	{
1926	/* Trim the search when we find the first other spell effect	1733	/* Trim the search when we find the first other spell effect
1927	* this helps performance so that if a space has 50 spell objects,	1734	* this helps performance so that if a space has 50 spell objects,
1928	* we don't need to check all of them.	1735	* we don't need to check all of them.
1929	*/	1736	*/
…		…
1947	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||	1754	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||
1948	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))	1755	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))
1949	{	1756	{
1950		1757
1951	float	1758	float
1952	diff = tmp->move_slow_penalty * FABS (op->speed);	1759	diff = tmp->move_slow_penalty * fabs (op->speed);
1953		1760
1954	if (op->type == PLAYER)	1761	if (op->type == PLAYER)
1955	if ((QUERY_FLAG (tmp, FLAG_IS_HILLY) && find_skill_by_number (op, SK_CLIMBING)) ||	1762	if ((QUERY_FLAG (tmp, FLAG_IS_HILLY) && find_skill_by_number (op, SK_CLIMBING)) ||
1956	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))	1763	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))
1957	diff /= 4.0;	1764	diff /= 4.0;
…		…
1984	/*	1791	/*
1985	* present_arch(arch, map, x, y) searches for any objects with	1792	* present_arch(arch, map, x, y) searches for any objects with
1986	* a matching archetype at the given map and coordinates.	1793	* a matching archetype at the given map and coordinates.
1987	* The first matching object is returned, or NULL if none.	1794	* The first matching object is returned, or NULL if none.
1988	*/	1795	*/
1989
1990	object *	1796	object *
1991	present_arch (const archetype *at, maptile *m, int x, int y)	1797	present_arch (const archetype *at, maptile *m, int x, int y)
1992	{	1798	{
1993	object *
1994	tmp;
1995
1996	if (m == NULL || out_of_map (m, x, y))	1799	if (!m || out_of_map (m, x, y))
1997	{	1800	{
1998	LOG (llevError, "Present_arch called outside map.\n");	1801	LOG (llevError, "Present_arch called outside map.\n");
1999	return NULL;	1802	return NULL;
2000	}	1803	}
2001	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)	1804
2002	if (tmp->arch == at)	1805	for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)
		1806	if (tmp->arch->archname == at->archname)
2003	return tmp;	1807	return tmp;
		1808
2004	return NULL;	1809	return NULL;
2005	}	1810	}
2006		1811
2007	/*	1812	/*
2008	* present(type, map, x, y) searches for any objects with	1813	* present(type, map, x, y) searches for any objects with
2009	* a matching type variable at the given map and coordinates.	1814	* a matching type variable at the given map and coordinates.
2010	* The first matching object is returned, or NULL if none.	1815	* The first matching object is returned, or NULL if none.
2011	*/	1816	*/
2012
2013	object *	1817	object *
2014	present (unsigned char type, maptile *m, int x, int y)	1818	present (unsigned char type, maptile *m, int x, int y)
2015	{	1819	{
2016	object *
2017	tmp;
2018
2019	if (out_of_map (m, x, y))	1820	if (out_of_map (m, x, y))
2020	{	1821	{
2021	LOG (llevError, "Present called outside map.\n");	1822	LOG (llevError, "Present called outside map.\n");
2022	return NULL;	1823	return NULL;
2023	}	1824	}
2024	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)	1825
		1826	for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)
2025	if (tmp->type == type)	1827	if (tmp->type == type)
2026	return tmp;	1828	return tmp;
		1829
2027	return NULL;	1830	return NULL;
2028	}	1831	}
2029		1832
2030	/*	1833	/*
2031	* present_in_ob(type, object) searches for any objects with	1834	* present_in_ob(type, object) searches for any objects with
2032	* a matching type variable in the inventory of the given object.	1835	* a matching type variable in the inventory of the given object.
2033	* The first matching object is returned, or NULL if none.	1836	* The first matching object is returned, or NULL if none.
2034	*/	1837	*/
2035
2036	object *	1838	object *
2037	present_in_ob (unsigned char type, const object *op)	1839	present_in_ob (unsigned char type, const object *op)
2038	{	1840	{
2039	object *
2040	tmp;
2041
2042	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1841	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
2043	if (tmp->type == type)	1842	if (tmp->type == type)
2044	return tmp;	1843	return tmp;
		1844
2045	return NULL;	1845	return NULL;
2046	}	1846	}
2047		1847
2048	/*	1848	/*
2049	* present_in_ob (type, str, object) searches for any objects with	1849	* present_in_ob (type, str, object) searches for any objects with
…		…
2057	* str is the string to match against. Note that we match against	1857	* str is the string to match against. Note that we match against
2058	* the object name, not the archetype name. this is so that the	1858	* the object name, not the archetype name. this is so that the
2059	* spell code can use one object type (force), but change it's name	1859	* spell code can use one object type (force), but change it's name
2060	* to be unique.	1860	* to be unique.
2061	*/	1861	*/
2062
2063	object *	1862	object *
2064	present_in_ob_by_name (int type, const char *str, const object *op)	1863	present_in_ob_by_name (int type, const char *str, const object *op)
2065	{	1864	{
2066	object *
2067	tmp;
2068
2069	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1865	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2070	{
2071	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))	1866	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))
2072	return tmp;	1867	return tmp;
2073	}	1868
2074	return NULL;	1869	return 0;
2075	}	1870	}
2076		1871
2077	/*	1872	/*
2078	* present_arch_in_ob(archetype, object) searches for any objects with	1873	* present_arch_in_ob(archetype, object) searches for any objects with
2079	* a matching archetype in the inventory of the given object.	1874	* a matching archetype in the inventory of the given object.
2080	* The first matching object is returned, or NULL if none.	1875	* The first matching object is returned, or NULL if none.
2081	*/	1876	*/
2082
2083	object *	1877	object *
2084	present_arch_in_ob (const archetype *at, const object *op)	1878	present_arch_in_ob (const archetype *at, const object *op)
2085	{	1879	{
2086	object *
2087	tmp;
2088
2089	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1880	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2090	if (tmp->arch == at)	1881	if (tmp->arch->archname == at->archname)
2091	return tmp;	1882	return tmp;
		1883
2092	return NULL;	1884	return NULL;
2093	}	1885	}
2094		1886
2095	/*	1887	/*
2096	* activate recursively a flag on an object inventory	1888	* activate recursively a flag on an object inventory
2097	*/	1889	*/
2098	void	1890	void
2099	flag_inv (object *op, int flag)	1891	flag_inv (object *op, int flag)
2100	{	1892	{
2101	object *
2102	tmp;
2103
2104	if (op->inv)
2105	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1893	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2106	{	1894	{
2107	SET_FLAG (tmp, flag);	1895	SET_FLAG (tmp, flag);
2108	flag_inv (tmp, flag);	1896	flag_inv (tmp, flag);
2109	}	1897	}
2110	} /*	1898	}
		1899
		1900	/*
2111	* desactivate recursively a flag on an object inventory	1901	* deactivate recursively a flag on an object inventory
2112	*/	1902	*/
2113	void	1903	void
2114	unflag_inv (object *op, int flag)	1904	unflag_inv (object *op, int flag)
2115	{	1905	{
2116	object *
2117	tmp;
2118
2119	if (op->inv)
2120	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1906	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2121	{	1907	{
2122	CLEAR_FLAG (tmp, flag);	1908	CLEAR_FLAG (tmp, flag);
2123	unflag_inv (tmp, flag);	1909	unflag_inv (tmp, flag);
2124	}	1910	}
2125	}
2126
2127	/*
2128	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in
2129	* all it's inventory (recursively).
2130	* If checksums are used, a player will get set_cheat called for
2131	* him/her-self and all object carried by a call to this function.
2132	*/
2133
2134	void
2135	set_cheat (object *op)
2136	{
2137	SET_FLAG (op, FLAG_WAS_WIZ);
2138	flag_inv (op, FLAG_WAS_WIZ);
2139	}	1911	}
2140		1912
2141	/*	1913	/*
2142	* find_free_spot(object, map, x, y, start, stop) will search for	1914	* find_free_spot(object, map, x, y, start, stop) will search for
2143	* a spot at the given map and coordinates which will be able to contain	1915	* a spot at the given map and coordinates which will be able to contain
…		…
2145	* to search (see the freearr_x/y[] definition).	1917	* to search (see the freearr_x/y[] definition).
2146	* It returns a random choice among the alternatives found.	1918	* It returns a random choice among the alternatives found.
2147	* start and stop are where to start relative to the free_arr array (1,9	1919	* start and stop are where to start relative to the free_arr array (1,9
2148	* does all 4 immediate directions). This returns the index into the	1920	* does all 4 immediate directions). This returns the index into the
2149	* array of the free spot, -1 if no spot available (dir 0 = x,y)	1921	* array of the free spot, -1 if no spot available (dir 0 = x,y)
2150	* Note - this only checks to see if there is space for the head of the
2151	* object - if it is a multispace object, this should be called for all
2152	* pieces.
2153	* Note2: This function does correctly handle tiled maps, but does not	1922	* Note: This function does correctly handle tiled maps, but does not
2154	* inform the caller. However, insert_ob_in_map will update as	1923	* inform the caller. However, insert_ob_in_map will update as
2155	* necessary, so the caller shouldn't need to do any special work.	1924	* necessary, so the caller shouldn't need to do any special work.
2156	* Note - updated to take an object instead of archetype - this is necessary	1925	* Note - updated to take an object instead of archetype - this is necessary
2157	* because arch_blocked (now ob_blocked) needs to know the movement type	1926	* because arch_blocked (now ob_blocked) needs to know the movement type
2158	* to know if the space in question will block the object. We can't use	1927	* to know if the space in question will block the object. We can't use
2159	* the archetype because that isn't correct if the monster has been	1928	* the archetype because that isn't correct if the monster has been
2160	* customized, changed states, etc.	1929	* customized, changed states, etc.
2161	*/	1930	*/
2162
2163	int	1931	int
2164	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)	1932	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)
2165	{	1933	{
2166	int
2167	i,
2168	index = 0, flag;
2169	static int
2170	altern[SIZEOFFREE];	1934	int altern[SIZEOFFREE];
		1935	int index = 0, flag;
2171		1936
2172	for (i = start; i < stop; i++)	1937	for (int i = start; i < stop; i++)
2173	{	1938	{
2174	flag = ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]);	1939	mapxy pos (m, x, y); pos.move (i);
2175	if (!flag)	1940
		1941	if (!pos.normalise ())
		1942	continue;
		1943
		1944	mapspace &ms = *pos;
		1945
		1946	if (ms.flags () & P_IS_ALIVE)
		1947	continue;
		1948
		1949	/* However, often
		1950	* ob doesn't have any move type (when used to place exits)
		1951	* so the AND operation in OB_TYPE_MOVE_BLOCK doesn't work.
		1952	*/
		1953	if (ob && ob->move_type == 0 && ms.move_block != MOVE_ALL)
		1954	{
2176	altern[index++] = i;	1955	altern [index++] = i;
		1956	continue;
		1957	}
2177		1958
2178	/* Basically, if we find a wall on a space, we cut down the search size.	1959	/* Basically, if we find a wall on a space, we cut down the search size.
2179	* In this way, we won't return spaces that are on another side of a wall.	1960	* In this way, we won't return spaces that are on another side of a wall.
2180	* This mostly work, but it cuts down the search size in all directions -	1961	* This mostly work, but it cuts down the search size in all directions -
2181	* if the space being examined only has a wall to the north and empty	1962	* if the space being examined only has a wall to the north and empty
2182	* spaces in all the other directions, this will reduce the search space	1963	* spaces in all the other directions, this will reduce the search space
2183	* to only the spaces immediately surrounding the target area, and	1964	* to only the spaces immediately surrounding the target area, and
2184	* won't look 2 spaces south of the target space.	1965	* won't look 2 spaces south of the target space.
2185	*/	1966	*/
2186	else if ((flag & AB_NO_PASS) && maxfree[i] < stop)	1967	if (ms.move_block == MOVE_ALL && maxfree[i] < stop)
		1968	{
2187	stop = maxfree[i];	1969	stop = maxfree[i];
		1970	continue;
		1971	}
		1972
		1973	/* Note it is intentional that we check ob - the movement type of the
		1974	* head of the object should correspond for the entire object.
		1975	*/
		1976	if (OB_TYPE_MOVE_BLOCK (ob, ms.move_block))
		1977	continue;
		1978
		1979	if (ob->blocked (pos.m, pos.x, pos.y))
		1980	continue;
		1981
		1982	altern [index++] = i;
2188	}	1983	}
		1984
2189	if (!index)	1985	if (!index)
2190	return -1;	1986	return -1;
		1987
2191	return altern[RANDOM () % index];	1988	return altern [rndm (index)];
2192	}	1989	}
2193		1990
2194	/*	1991	/*
2195	* find_first_free_spot(archetype, maptile, x, y) works like	1992	* find_first_free_spot(archetype, maptile, x, y) works like
2196	* find_free_spot(), but it will search max number of squares.	1993	* find_free_spot(), but it will search max number of squares.
2197	* But it will return the first available spot, not a random choice.	1994	* But it will return the first available spot, not a random choice.
2198	* Changed 0.93.2: Have it return -1 if there is no free spot available.	1995	* Changed 0.93.2: Have it return -1 if there is no free spot available.
2199	*/	1996	*/
2200
2201	int	1997	int
2202	find_first_free_spot (const object *ob, maptile *m, int x, int y)	1998	find_first_free_spot (const object *ob, maptile *m, int x, int y)
2203	{	1999	{
2204	int
2205	i;
2206
2207	for (i = 0; i < SIZEOFFREE; i++)	2000	for (int i = 0; i < SIZEOFFREE; i++)
2208	{
2209	if (!ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]))	2001	if (!ob->blocked (m, x + freearr_x[i], y + freearr_y[i]))
2210	return i;	2002	return i;
2211	}	2003
2212	return -1;	2004	return -1;
2213	}	2005	}
2214		2006
2215	/*	2007	/*
2216	* The function permute(arr, begin, end) randomly reorders the array	2008	* The function permute(arr, begin, end) randomly reorders the array
2217	* arr[begin..end-1].	2009	* arr[begin..end-1].
		2010	* now uses a fisher-yates shuffle, old permute was broken
2218	*/	2011	*/
2219	static void	2012	static void
2220	permute (int *arr, int begin, int end)	2013	permute (int *arr, int begin, int end)
2221	{	2014	{
2222	int	2015	arr += begin;
2223	i,
2224	j,
2225	tmp,
2226	len;
2227
2228	len = end - begin;	2016	end -= begin;
2229	for (i = begin; i < end; i++)
2230	{
2231	j = begin + RANDOM () % len;
2232		2017
2233	tmp = arr[i];	2018	while (--end)
2234	arr[i] = arr[j];	2019	swap (arr [end], arr [rndm (end + 1)]);
2235	arr[j] = tmp;
2236	}
2237	}	2020	}
2238		2021
2239	/* new function to make monster searching more efficient, and effective!	2022	/* new function to make monster searching more efficient, and effective!
2240	* This basically returns a randomized array (in the passed pointer) of	2023	* This basically returns a randomized array (in the passed pointer) of
2241	* the spaces to find monsters. In this way, it won't always look for	2024	* the spaces to find monsters. In this way, it won't always look for
…		…
2244	* the 3x3 area will be searched, just not in a predictable order.	2027	* the 3x3 area will be searched, just not in a predictable order.
2245	*/	2028	*/
2246	void	2029	void
2247	get_search_arr (int *search_arr)	2030	get_search_arr (int *search_arr)
2248	{	2031	{
2249	int	2032	int i;
2250	i;
2251		2033
2252	for (i = 0; i < SIZEOFFREE; i++)	2034	for (i = 0; i < SIZEOFFREE; i++)
2253	{
2254	search_arr[i] = i;	2035	search_arr[i] = i;
2255	}
2256		2036
2257	permute (search_arr, 1, SIZEOFFREE1 + 1);	2037	permute (search_arr, 1, SIZEOFFREE1 + 1);
2258	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);	2038	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);
2259	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);	2039	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);
2260	}	2040	}
…		…
2269	* Perhaps incorrectly, but I'm making the assumption that exclude	2049	* Perhaps incorrectly, but I'm making the assumption that exclude
2270	* is actually want is going to try and move there. We need this info	2050	* is actually want is going to try and move there. We need this info
2271	* because we have to know what movement the thing looking to move	2051	* because we have to know what movement the thing looking to move
2272	* there is capable of.	2052	* there is capable of.
2273	*/	2053	*/
2274
2275	int	2054	int
2276	find_dir (maptile *m, int x, int y, object *exclude)	2055	find_dir (maptile *m, int x, int y, object *exclude)
2277	{	2056	{
2278	int
2279	i,
2280	max = SIZEOFFREE, mflags;	2057	int i, max = SIZEOFFREE, mflags;
2281		2058
2282	sint16 nx, ny;	2059	sint16 nx, ny;
2283	object *	2060	object *tmp;
2284	tmp;
2285	maptile *	2061	maptile *mp;
2286	mp;
2287		2062
2288	MoveType blocked, move_type;	2063	MoveType blocked, move_type;
2289		2064
2290	if (exclude && exclude->head)	2065	if (exclude && exclude->head_ () != exclude)
2291	{	2066	{
2292	exclude = exclude->head;	2067	exclude = exclude->head;
2293	move_type = exclude->move_type;	2068	move_type = exclude->move_type;
2294	}	2069	}
2295	else	2070	else
…		…
2303	mp = m;	2078	mp = m;
2304	nx = x + freearr_x[i];	2079	nx = x + freearr_x[i];
2305	ny = y + freearr_y[i];	2080	ny = y + freearr_y[i];
2306		2081
2307	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);	2082	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);
		2083
2308	if (mflags & P_OUT_OF_MAP)	2084	if (mflags & P_OUT_OF_MAP)
2309	{
2310	max = maxfree[i];	2085	max = maxfree[i];
2311	}
2312	else	2086	else
2313	{	2087	{
2314	blocked = GET_MAP_MOVE_BLOCK (mp, nx, ny);	2088	mapspace &ms = mp->at (nx, ny);
		2089
		2090	blocked = ms.move_block;
2315		2091
2316	if ((move_type & blocked) == move_type)	2092	if ((move_type & blocked) == move_type)
2317	{
2318	max = maxfree[i];	2093	max = maxfree[i];
2319	}
2320	else if (mflags & P_IS_ALIVE)	2094	else if (mflags & P_IS_ALIVE)
2321	{	2095	{
2322	for (tmp = GET_MAP_OB (mp, nx, ny); tmp != NULL; tmp = tmp->above)	2096	for (tmp = ms.bot; tmp; tmp = tmp->above)
2323	{	2097	if ((tmp->flag [FLAG_MONSTER] || tmp->type == PLAYER)
2324	if ((QUERY_FLAG (tmp, FLAG_MONSTER) || tmp->type == PLAYER) && (tmp != exclude || (tmp->head && tmp->head != exclude)))	2098	&& (tmp != exclude || (tmp->head_ () != tmp && tmp->head_ () != exclude)))
2325	{
2326	break;	2099	break;
2327	}	2100
2328	}
2329	if (tmp)	2101	if (tmp)
2330	{
2331	return freedir[i];	2102	return freedir[i];
2332	}
2333	}	2103	}
2334	}	2104	}
2335	}	2105	}
		2106
2336	return 0;	2107	return 0;
2337	}	2108	}
2338		2109
2339	/*	2110	/*
2340	* distance(object 1, object 2) will return the square of the	2111	* distance(object 1, object 2) will return the square of the
2341	* distance between the two given objects.	2112	* distance between the two given objects.
2342	*/	2113	*/
2343
2344	int	2114	int
2345	distance (const object *ob1, const object *ob2)	2115	distance (const object *ob1, const object *ob2)
2346	{	2116	{
2347	int
2348	i;
2349
2350	i = (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);	2117	return (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);
2351	return i;
2352	}	2118	}
2353		2119
2354	/*	2120	/*
2355	* find_dir_2(delta-x,delta-y) will return a direction in which	2121	* find_dir_2(delta-x,delta-y) will return a direction in which
2356	* an object which has subtracted the x and y coordinates of another	2122	* an object which has subtracted the x and y coordinates of another
2357	* object, needs to travel toward it.	2123	* object, needs to travel toward it.
2358	*/	2124	*/
2359
2360	int	2125	int
2361	find_dir_2 (int x, int y)	2126	find_dir_2 (int x, int y)
2362	{	2127	{
2363	int	2128	int q;
2364	q;
2365		2129
2366	if (y)	2130	if (y)
2367	q = x * 100 / y;	2131	q = x * 100 / y;
2368	else if (x)	2132	else if (x)
2369	q = -300 * x;	2133	q = -300 * x;
…		…
2394		2158
2395	return 3;	2159	return 3;
2396	}	2160	}
2397		2161
2398	/*	2162	/*
2399	* absdir(int): Returns a number between 1 and 8, which represent
2400	* the "absolute" direction of a number (it actually takes care of
2401	* "overflow" in previous calculations of a direction).
2402	*/
2403
2404	int
2405	absdir (int d)
2406	{
2407	while (d < 1)
2408	d += 8;
2409	while (d > 8)
2410	d -= 8;
2411	return d;
2412	}
2413
2414	/*
2415	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is	2163	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is
2416	* between two directions (which are expected to be absolute (see absdir())	2164	* between two directions (which are expected to be absolute (see absdir())
2417	*/	2165	*/
2418
2419	int	2166	int
2420	dirdiff (int dir1, int dir2)	2167	dirdiff (int dir1, int dir2)
2421	{	2168	{
2422	int	2169	int d;
2423	d;
2424		2170
2425	d = abs (dir1 - dir2);	2171	d = abs (dir1 - dir2);
2426	if (d > 4)	2172	if (d > 4)
2427	d = 8 - d;	2173	d = 8 - d;
		2174
2428	return d;	2175	return d;
2429	}	2176	}
2430		2177
2431	/* peterm:	2178	/* peterm:
2432	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.	2179	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.
…		…
2435	* This basically means that if direction is 15, then it could either go	2182	* This basically means that if direction is 15, then it could either go
2436	* direction 4, 14, or 16 to get back to where we are.	2183	* direction 4, 14, or 16 to get back to where we are.
2437	* Moved from spell_util.c to object.c with the other related direction	2184	* Moved from spell_util.c to object.c with the other related direction
2438	* functions.	2185	* functions.
2439	*/	2186	*/
2440
2441	int
2442	reduction_dir[SIZEOFFREE][3] = {	2187	int reduction_dir[SIZEOFFREE][3] = {
2443	{0, 0, 0}, /* 0 */	2188	{0, 0, 0}, /* 0 */
2444	{0, 0, 0}, /* 1 */	2189	{0, 0, 0}, /* 1 */
2445	{0, 0, 0}, /* 2 */	2190	{0, 0, 0}, /* 2 */
2446	{0, 0, 0}, /* 3 */	2191	{0, 0, 0}, /* 3 */
2447	{0, 0, 0}, /* 4 */	2192	{0, 0, 0}, /* 4 */
…		…
2495	* find a path to that monster that we found. If not,	2240	* find a path to that monster that we found. If not,
2496	* we don't bother going toward it. Returns 1 if we	2241	* we don't bother going toward it. Returns 1 if we
2497	* can see a direct way to get it	2242	* can see a direct way to get it
2498	* Modified to be map tile aware -.MSW	2243	* Modified to be map tile aware -.MSW
2499	*/	2244	*/
2500
2501
2502	int	2245	int
2503	can_see_monsterP (maptile *m, int x, int y, int dir)	2246	can_see_monsterP (maptile *m, int x, int y, int dir)
2504	{	2247	{
2505	sint16 dx, dy;	2248	sint16 dx, dy;
2506	int
2507	mflags;	2249	int mflags;
2508		2250
2509	if (dir < 0)	2251	if (dir < 0)
2510	return 0; /* exit condition: invalid direction */	2252	return 0; /* exit condition: invalid direction */
2511		2253
2512	dx = x + freearr_x[dir];	2254	dx = x + freearr_x[dir];
…		…
2525	return 0;	2267	return 0;
2526		2268
2527	/* yes, can see. */	2269	/* yes, can see. */
2528	if (dir < 9)	2270	if (dir < 9)
2529	return 1;	2271	return 1;
		2272
2530	return can_see_monsterP (m, x, y, reduction_dir[dir][0]) |	2273	return can_see_monsterP (m, x, y, reduction_dir[dir][0])
2531	can_see_monsterP (m, x, y, reduction_dir[dir][1]) | can_see_monsterP (m, x, y, reduction_dir[dir][2]);	2274	| can_see_monsterP (m, x, y, reduction_dir[dir][1])
		2275	| can_see_monsterP (m, x, y, reduction_dir[dir][2]);
2532	}	2276	}
2533
2534
2535		2277
2536	/*	2278	/*
2537	* can_pick(picker, item): finds out if an object is possible to be	2279	* can_pick(picker, item): finds out if an object is possible to be
2538	* picked up by the picker. Returnes 1 if it can be	2280	* picked up by the picker. Returnes 1 if it can be
2539	* picked up, otherwise 0.	2281	* picked up, otherwise 0.
…		…
2541	* Cf 0.91.3 - don't let WIZ's pick up anything - will likely cause	2283	* Cf 0.91.3 - don't let WIZ's pick up anything - will likely cause
2542	* core dumps if they do.	2284	* core dumps if they do.
2543	*	2285	*
2544	* Add a check so we can't pick up invisible objects (0.93.8)	2286	* Add a check so we can't pick up invisible objects (0.93.8)
2545	*/	2287	*/
2546
2547	int	2288	int
2548	can_pick (const object *who, const object *item)	2289	can_pick (const object *who, const object *item)
2549	{	2290	{
2550	return /*QUERY_FLAG(who,FLAG_WIZ)|| */	2291	return /*QUERY_FLAG(who,FLAG_WIZ)|| */
2551	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&	2292	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&
2552	!QUERY_FLAG (item, FLAG_ALIVE) && !item->invisible && (who->type == PLAYER || item->weight < who->weight / 3));	2293	!QUERY_FLAG (item, FLAG_ALIVE) && !item->invisible && (who->type == PLAYER || item->weight < who->weight / 3));
2553	}	2294	}
2554		2295
2555
2556	/*	2296	/*
2557	* create clone from object to another	2297	* create clone from object to another
2558	*/	2298	*/
2559	object *	2299	object *
2560	object_create_clone (object *asrc)	2300	object::deep_clone ()
2561	{	2301	{
2562	object *	2302	assert (("deep_clone called on non-head object", is_head ()));
2563	dst = NULL, *tmp, *src, *part, *prev, *item;
2564		2303
2565	if (!asrc)	2304	object *dst = clone ();
2566	return NULL;
2567	src = asrc;
2568	if (src->head)
2569	src = src->head;
2570		2305
2571	prev = NULL;	2306	object *prev = dst;
2572	for (part = src; part; part = part->more)	2307	for (object *part = this->more; part; part = part->more)
2573	{	2308	{
2574	tmp = get_object ();	2309	object *tmp = part->clone ();
2575	copy_object (part, tmp);
2576	tmp->x -= src->x;
2577	tmp->y -= src->y;
2578	if (!part->head)
2579	{
2580	dst = tmp;
2581	tmp->head = NULL;
2582	}
2583	else
2584	{
2585	tmp->head = dst;	2310	tmp->head = dst;
2586	}
2587	tmp->more = NULL;
2588	if (prev)
2589	prev->more = tmp;	2311	prev->more = tmp;
2590	prev = tmp;	2312	prev = tmp;
2591	}	2313	}
2592		2314
2593	for (item = src->inv; item; item = item->below)	2315	for (object *item = inv; item; item = item->below)
2594	insert_ob_in_ob (object_create_clone (item), dst);	2316	insert_ob_in_ob (item->deep_clone (), dst);
2595		2317
2596	return dst;	2318	return dst;
2597	}
2598
2599	/* GROS - Creates an object using a string representing its content. */
2600	/* Basically, we save the content of the string to a temp file, then call */
2601	/* load_object on it. I admit it is a highly inefficient way to make things, */
2602	/* but it was simple to make and allows reusing the load_object function. */
2603	/* Remember not to use load_object_str in a time-critical situation. */
2604	/* Also remember that multiparts objects are not supported for now. */
2605
2606	object *
2607	load_object_str (const char *obstr)
2608	{
2609	object *op;
2610	char filename[MAX_BUF];
2611
2612	sprintf (filename, "%s/cfloadobstr2044", settings.tmpdir);
2613
2614	FILE *tempfile = fopen (filename, "w");
2615
2616	if (tempfile == NULL)
2617	{
2618	LOG (llevError, "Error - Unable to access load object temp file\n");
2619	return NULL;
2620	}
2621
2622	fprintf (tempfile, obstr);
2623	fclose (tempfile);
2624
2625	op = get_object ();
2626
2627	object_thawer thawer (filename);
2628
2629	if (thawer)
2630	load_object (thawer, op, 0);
2631
2632	LOG (llevDebug, " load str completed, object=%s\n", &op->name);
2633	CLEAR_FLAG (op, FLAG_REMOVED);
2634
2635	return op;
2636	}	2319	}
2637		2320
2638	/* This returns the first object in who's inventory that	2321	/* This returns the first object in who's inventory that
2639	* has the same type and subtype match.	2322	* has the same type and subtype match.
2640	* returns NULL if no match.	2323	* returns NULL if no match.
2641	*/	2324	*/
2642	object *	2325	object *
2643	find_obj_by_type_subtype (const object *who, int type, int subtype)	2326	find_obj_by_type_subtype (const object *who, int type, int subtype)
2644	{	2327	{
2645	object *tmp;
2646
2647	for (tmp = who->inv; tmp; tmp = tmp->below)	2328	for (object *tmp = who->inv; tmp; tmp = tmp->below)
2648	if (tmp->type == type && tmp->subtype == subtype)	2329	if (tmp->type == type && tmp->subtype == subtype)
2649	return tmp;	2330	return tmp;
2650		2331
2651	return NULL;
2652	}
2653
2654	/* If ob has a field named key, return the link from the list,
2655	* otherwise return NULL.
2656	*
2657	* key must be a passed in shared string - otherwise, this won't
2658	* do the desired thing.
2659	*/
2660	key_value *
2661	get_ob_key_link (const object *ob, const char *key)
2662	{
2663	key_value *link;
2664
2665	for (link = ob->key_values; link != NULL; link = link->next)
2666	if (link->key == key)
2667	return link;
2668
2669	return NULL;
2670	}
2671
2672	/*
2673	* Returns the value of op has an extra_field for key, or NULL.
2674	*
2675	* The argument doesn't need to be a shared string.
2676	*
2677	* The returned string is shared.
2678	*/
2679	const char *
2680	get_ob_key_value (const object *op, const char *const key)
2681	{
2682	key_value *link;
2683	shstr_cmp canonical_key (key);
2684
2685	if (!canonical_key)
2686	{
2687	/* 1. There being a field named key on any object
2688	* implies there'd be a shared string to find.
2689	* 2. Since there isn't, no object has this field.
2690	* 3. Therefore, *this* object doesn't have this field.
2691	*/
2692	return 0;
2693	}
2694
2695	/* This is copied from get_ob_key_link() above -
2696	* only 4 lines, and saves the function call overhead.
2697	*/
2698	for (link = op->key_values; link; link = link->next)
2699	if (link->key == canonical_key)
2700	return link->value;
2701
2702	return 0;	2332	return 0;
2703	}	2333	}
2704		2334
2705		2335	const shstr &
2706	/*	2336	object::kv_get (const shstr &key) const
2707	* Updates the canonical_key in op to value.
2708	*
2709	* canonical_key is a shared string (value doesn't have to be).
2710	*
2711	* Unless add_key is TRUE, it won't add fields, only change the value of existing
2712	* keys.
2713	*
2714	* Returns TRUE on success.
2715	*/
2716	int
2717	set_ob_key_value_s (object *op, const shstr & canonical_key, const char *value, int add_key)
2718	{	2337	{
2719	key_value *	2338	for (key_value *kv = key_values; kv; kv = kv->next)
2720	field = NULL, *last = NULL;	2339	if (kv->key == key)
		2340	return kv->value;
2721		2341
2722	for (field = op->key_values; field != NULL; field = field->next)	2342	return shstr_null;
2723	{	2343	}
2724	if (field->key != canonical_key)	2344
		2345	void
		2346	object::kv_set (const shstr &key, const shstr &value)
		2347	{
		2348	for (key_value *kv = key_values; kv; kv = kv->next)
		2349	if (kv->key == key)
2725	{	2350	{
2726	last = field;	2351	kv->value = value;
2727	continue;	2352	return;
2728	}	2353	}
2729		2354
2730	if (value)	2355	key_value *kv = new key_value;
2731	field->value = value;	2356
2732	else	2357	kv->next = key_values;
		2358	kv->key = key;
		2359	kv->value = value;
		2360
		2361	key_values = kv;
		2362	}
		2363
		2364	void
		2365	object::kv_del (const shstr &key)
		2366	{
		2367	for (key_value **kvp = &key_values; *kvp; kvp = &(*kvp)->next)
		2368	if ((*kvp)->key == key)
2733	{	2369	{
2734	/* Basically, if the archetype has this key set,	2370	key_value *kv = *kvp;
2735	* we need to store the null value so when we save	2371	*kvp = (*kvp)->next;
2736	* it, we save the empty value so that when we load,	2372	delete kv;
2737	* we get this value back again.	2373	return;
2738	*/
2739	if (get_ob_key_link (&op->arch->clone, canonical_key))
2740	field->value = 0;
2741	else
2742	{
2743	if (last)
2744	last->next = field->next;
2745	else
2746	op->key_values = field->next;
2747
2748	delete field;
2749	}
2750	}	2374	}
2751	return TRUE;
2752	}
2753	/* IF we get here, key doesn't exist */
2754
2755	/* No field, we'll have to add it. */
2756
2757	if (!add_key)
2758	{
2759	return FALSE;
2760	}
2761	/* There isn't any good reason to store a null
2762	* value in the key/value list. If the archetype has
2763	* this key, then we should also have it, so shouldn't
2764	* be here. If user wants to store empty strings,
2765	* should pass in ""
2766	*/
2767	if (value == NULL)
2768	return TRUE;
2769
2770	field = new key_value;
2771
2772	field->key = canonical_key;
2773	field->value = value;
2774	/* Usual prepend-addition. */
2775	field->next = op->key_values;
2776	op->key_values = field;
2777
2778	return TRUE;
2779	}
2780
2781	/*
2782	* Updates the key in op to value.
2783	*
2784	* If add_key is FALSE, this will only update existing keys,
2785	* and not add new ones.
2786	* In general, should be little reason FALSE is ever passed in for add_key
2787	*
2788	* Returns TRUE on success.
2789	*/
2790	int
2791	set_ob_key_value (object *op, const char *key, const char *value, int add_key)
2792	{
2793	shstr key_ (key);
2794
2795	return set_ob_key_value_s (op, key_, value, add_key);
2796	}	2375	}
2797		2376
2798	object::depth_iterator::depth_iterator (object *container)	2377	object::depth_iterator::depth_iterator (object *container)
2799	: iterator_base (container)	2378	: iterator_base (container)
2800	{	2379	{
…		…
2814	}	2393	}
2815	else	2394	else
2816	item = item->env;	2395	item = item->env;
2817	}	2396	}
2818		2397
		2398	const char *
		2399	object::flag_desc (char *desc, int len) const
		2400	{
		2401	char *p = desc;
		2402	bool first = true;
		2403
		2404	*p = 0;
		2405
		2406	for (int i = 0; i < NUM_FLAGS; i++)
		2407	{
		2408	if (len <= 10) // magic constant!
		2409	{
		2410	snprintf (p, len, ",...");
		2411	break;
		2412	}
		2413
		2414	if (flag [i])
		2415	{
		2416	int cnt = snprintf (p, len, "%s%d", first ? "" : ",", i);
		2417	len -= cnt;
		2418	p += cnt;
		2419	first = false;
		2420	}
		2421	}
		2422
		2423	return desc;
		2424	}
		2425
2819	// return a suitable string describing an objetc in enough detail to find it	2426	// return a suitable string describing an object in enough detail to find it
2820	const char *	2427	const char *
2821	object::debug_desc (char *info) const	2428	object::debug_desc (char *info) const
2822	{	2429	{
		2430	char flagdesc[512];
2823	char info2[256 * 3];	2431	char info2[256 * 4];
2824	char *p = info;	2432	char *p = info;
2825		2433
2826	p += snprintf (p, 256, "%d=\"%s%s%s\"",	2434	p += snprintf (p, 512, "{cnt:%d,uuid:%s,name:\"%s\"%s%s%s,flags:[%s],type:%d}",
2827	count,	2435	count,
		2436	uuid.c_str (),
2828	&name,	2437	&name,
2829	title ? " " : "",	2438	title ? ",title:\"" : "",
2830	title ? (const char *)title : "");	2439	title ? (const char *)title : "",
		2440	title ? "\"" : "",
		2441	flag_desc (flagdesc, 512), type);
2831		2442
2832	if (env)	2443	if (!flag[FLAG_REMOVED] && env)
2833	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));	2444	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));
2834		2445
2835	if (map)	2446	if (map)
2836	p += snprintf (p, 256, "(on %s@%d+%d)", map->path, x, y);	2447	p += snprintf (p, 256, "(on %s@%d+%d)", &map->path, x, y);
2837		2448
2838	return info;	2449	return info;
2839	}	2450	}
2840		2451
2841	const char *	2452	const char *
2842	object::debug_desc () const	2453	object::debug_desc () const
2843	{	2454	{
2844	static char info[256 * 3];	2455	static char info[3][256 * 4];
		2456	static int info_idx;
		2457
2845	return debug_desc (info);	2458	return debug_desc (info [++info_idx % 3]);
2846	}	2459	}
2847		2460
		2461	struct region *
		2462	object::region () const
		2463	{
		2464	return map ? map->region (x, y)
		2465	: region::default_region ();
		2466	}
		2467
		2468	const materialtype_t *
		2469	object::dominant_material () const
		2470	{
		2471	if (materialtype_t *mt = name_to_material (materialname))
		2472	return mt;
		2473
		2474	return name_to_material (shstr_unknown);
		2475	}
		2476
		2477	void
		2478	object::open_container (object *new_container)
		2479	{
		2480	if (container == new_container)
		2481	return;
		2482
		2483	object *old_container = container;
		2484
		2485	if (old_container)
		2486	{
		2487	if (INVOKE_OBJECT (CLOSE, old_container, ARG_OBJECT (this)))
		2488	return;
		2489
		2490	#if 0
		2491	// remove the "Close old_container" object.
		2492	if (object *closer = old_container->inv)
		2493	if (closer->type == CLOSE_CON)
		2494	closer->destroy ();
		2495	#endif
		2496
		2497	// make sure the container is available
		2498	esrv_send_item (this, old_container);
		2499
		2500	old_container->flag [FLAG_APPLIED] = false;
		2501	container = 0;
		2502
		2503	// client needs item update to make it work, client bug requires this to be separate
		2504	esrv_update_item (UPD_FLAGS, this, old_container);
		2505
		2506	new_draw_info_format (NDI_UNIQUE, 0, this, "You close %s.", query_name (old_container));
		2507	play_sound (sound_find ("chest_close"));
		2508	}
		2509
		2510	if (new_container)
		2511	{
		2512	if (INVOKE_OBJECT (OPEN, new_container, ARG_OBJECT (this)))
		2513	return;
		2514
		2515	// TODO: this does not seem to serve any purpose anymore?
		2516	#if 0
		2517	// insert the "Close Container" object.
		2518	if (archetype *closer = new_container->other_arch)
		2519	{
		2520	object *closer = arch_to_object (new_container->other_arch);
		2521	closer->flag [FLAG_NO_MAP_SAVE] = 1;
		2522	new_container->insert (closer);
		2523	}
		2524	#endif
		2525
		2526	new_draw_info_format (NDI_UNIQUE, 0, this, "You open %s.", query_name (new_container));
		2527
		2528	// make sure the container is available, client bug requires this to be separate
		2529	esrv_send_item (this, new_container);
		2530
		2531	new_container->flag [FLAG_APPLIED] = true;
		2532	container = new_container;
		2533
		2534	// client needs flag change
		2535	esrv_update_item (UPD_FLAGS, this, new_container);
		2536	esrv_send_inventory (this, new_container);
		2537	play_sound (sound_find ("chest_open"));
		2538	}
		2539	// else if (!old_container->env && contr && contr->ns)
		2540	// contr->ns->floorbox_reset ();
		2541	}
		2542
		2543	object *
		2544	object::force_find (const shstr name)
		2545	{
		2546	/* cycle through his inventory to look for the MARK we want to
		2547	* place
		2548	*/
		2549	for (object *tmp = inv; tmp; tmp = tmp->below)
		2550	if (tmp->type == FORCE && tmp->slaying == name)
		2551	return splay (tmp);
		2552
		2553	return 0;
		2554	}
		2555
		2556	object *
		2557	object::force_add (const shstr name, int duration)
		2558	{
		2559	if (object *force = force_find (name))
		2560	force->destroy ();
		2561
		2562	object *force = get_archetype (FORCE_NAME);
		2563
		2564	force->slaying = name;
		2565	force->stats.food = 1;
		2566	force->speed_left = -1.f;
		2567
		2568	force->set_speed (duration ? 1.f / duration : 0.f);
		2569	force->flag [FLAG_IS_USED_UP] = true;
		2570	force->flag [FLAG_APPLIED] = true;
		2571
		2572	return insert (force);
		2573	}
		2574
		2575	void
		2576	object::play_sound (faceidx sound)
		2577	{
		2578	if (!sound)
		2579	return;
		2580
		2581	if (flag [FLAG_REMOVED])
		2582	return;
		2583
		2584	if (env)
		2585	{
		2586	if (object *pl = in_player ())
		2587	pl->contr->play_sound (sound);
		2588	}
		2589	else
		2590	map->play_sound (sound, x, y);
		2591	}
		2592
		2593	void
		2594	object::make_noise ()
		2595	{
		2596	// we do not model noise in the map, so instead put
		2597	// a temporary light into the noise source
		2598	// could use the map instead, but that's less reliable for our
		2599	// goal, which is to make invisibility a bit harder to exploit
		2600
		2601	// currently only works sensibly for players
		2602	if (!is_player ())
		2603	return;
		2604
		2605	// find old force, or create new one
		2606	object *force = force_find (shstr_noise_force);
		2607
		2608	if (force)
		2609	force->speed = 1.f / 4; // patch old speed up
		2610	else
		2611	force_add (shstr_noise_force, 4);
		2612	}
		2613

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