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Comparing deliantra/server/common/object.C (file contents):
Revision 1.52 by root, Wed Sep 27 00:36:08 2006 UTC vs.
Revision 1.288 by root, Sat Oct 3 22:36:08 2009 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 (©) 2005,2006,2007,2008,2009 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;
		37	uint32_t mapspace::smellcount = 10000;
38		38
39	object *active_objects; /* List of active objects that need to be processed */	39	objectvec objects;
		40	activevec actives;
40		41
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,	42	short freearr_x[SIZEOFFREE] = {
		43	0,
		44	0, 1, 1, 1, 0, -1, -1, -1,
		45	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	46	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	};	47	};
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,	48	short freearr_y[SIZEOFFREE] = {
		49	0,
		50	-1, -1, 0, 1, 1, 1, 0, -1,
		51	-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	52	-3, -3, -3, -3, -2, -1, 0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3
46	};	53	};
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,	54	int maxfree[SIZEOFFREE] = {
		55	0,
		56	9, 10, 13, 14, 17, 18, 21, 22,
		57	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	58	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	};	59	};
50	int freedir[SIZEOFFREE] = {	60	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,	61	0,
		62	1, 2, 3, 4, 5, 6, 7, 8,
		63	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	64	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	};	65	};
54		66
55	static void	67	static void
56	write_uuid (void)	68	write_uuid (uval64 skip, bool sync)
57	{	69	{
58	char filename1[MAX_BUF], filename2[MAX_BUF];	70	CALL_BEGIN (2);
59		71	CALL_ARG_SV (newSVval64 (skip));
60	sprintf (filename1, "%s/uuid", settings.localdir);	72	CALL_ARG_SV (boolSV (sync));
61	sprintf (filename2, "%s/uuid~", settings.localdir);	73	CALL_CALL ("cf::write_uuid", G_DISCARD);
62		74	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	}	75	}
75		76
76	static void	77	static void
77	read_uuid (void)	78	read_uuid (void)
78	{	79	{
79	char filename[MAX_BUF];	80	char filename[MAX_BUF];
80		81
81	sprintf (filename, "%s/uuid", settings.localdir);	82	sprintf (filename, "%s/uuid", settings.localdir);
		83
		84	seq_next_save = 0;
82		85
83	FILE *fp;	86	FILE *fp;
84		87
85	if (!(fp = fopen (filename, "r")))	88	if (!(fp = fopen (filename, "r")))
86	{	89	{
87	if (errno == ENOENT)	90	if (errno == ENOENT)
88	{	91	{
89	LOG (llevInfo, "RESET uid to 1\n");	92	LOG (llevInfo, "RESET uid to 1\n");
90	uuid.seq = 0;	93	UUID::cur.seq = 0;
91	write_uuid ();	94	write_uuid (UUID_GAP, true);
92	return;	95	return;
93	}	96	}
94		97
95	LOG (llevError, "FATAL: cannot open %s for reading!\n", filename);	98	LOG (llevError, "FATAL: cannot open %s for reading!\n", filename);
96	_exit (1);	99	_exit (1);
97	}	100	}
98		101
99	int version;	102	UUID::BUF buf;
100	unsigned long long uid;	103	buf[0] = 0;
101	if (2 != fscanf (fp, "<%d,%llx>\n", &version, &uid) || version != 1)	104	fgets (buf, sizeof (buf), fp);
		105
		106	if (!UUID::cur.parse (buf))
102	{	107	{
103	LOG (llevError, "FATAL: error reading uid from %s!\n", filename);	108	LOG (llevError, "FATAL: error reading uid from %s (%s)!\n", filename, buf);
104	_exit (1);	109	_exit (1);
105	}	110	}
106		111
107	uuid.seq = uid;
108	write_uuid ();
109	LOG (llevDebug, "read UID: %lld\n", uid);	112	LOG (llevDebug, "read UUID: %s\n", UUID::cur.c_str ());
		113
		114	write_uuid (UUID_GAP, true);
110	fclose (fp);	115	fclose (fp);
111	}	116	}
112		117
113	UUID	118	UUID
114	gen_uuid ()	119	UUID::gen ()
115	{	120	{
116	UUID uid;	121	UUID uid;
117		122
118	uid.seq = ++uuid.seq;	123	uid.seq = ++cur.seq;
119		124
120	if (!(uuid.seq & (UUID_SKIP - 1)))	125	if (expect_false (cur.seq >= seq_next_save))
121	write_uuid ();	126	{
		127	seq_next_save = UUID::cur.seq + (UUID_GAP >> 1);
		128	write_uuid (UUID_GAP, false);
		129	}
		130
122		131
123	return uid;	132	return uid;
124	}	133	}
125		134
126	void	135	void
127	init_uuid ()	136	UUID::init ()
128	{	137	{
129	read_uuid ();	138	read_uuid ();
130	}	139	}
131		140
132	/* Returns TRUE if every key_values in wants has a partner with the same value in has. */	141	/* Returns TRUE if every key_values in wants has a partner with the same value in has. */
133	static int	142	static bool
134	compare_ob_value_lists_one (const object *wants, const object *has)	143	compare_ob_value_lists_one (const object *wants, const object *has)
135	{	144	{
136	key_value *wants_field;
137
138	/* n-squared behaviour (see get_ob_key_link()), but I'm hoping both	145	/* 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	146	* objects with lists are rare, and lists stay short. If not, use a
140	* different structure or at least keep the lists sorted...	147	* different structure or at least keep the lists sorted...
141	*/	148	*/
142		149
143	/* For each field in wants, */	150	/* For each field in wants, */
144	for (wants_field = wants->key_values; wants_field != NULL; wants_field = wants_field->next)	151	for (key_value *kv = wants->key_values; kv; kv = kv->next)
145	{	152	if (has->kv_get (kv->key) != kv->value)
146	key_value *has_field;	153	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		154
167	/* If we get here, every field in wants has a matching field in has. */	155	/* If we get here, every field in wants has a matching field in has. */
168	return TRUE;	156	return true;
169	}	157	}
170		158
171	/* Returns TRUE if ob1 has the same key_values as ob2. */	159	/* Returns TRUE if ob1 has the same key_values as ob2. */
172	static int	160	static bool
173	compare_ob_value_lists (const object *ob1, const object *ob2)	161	compare_ob_value_lists (const object *ob1, const object *ob2)
174	{	162	{
175	/* However, there may be fields in has which aren't partnered in wants,	163	/* However, there may be fields in has which aren't partnered in wants,
176	* so we need to run the comparison *twice*. :(	164	* so we need to run the comparison *twice*. :(
177	*/	165	*/
178	return compare_ob_value_lists_one (ob1, ob2) && compare_ob_value_lists_one (ob2, ob1);	166	return compare_ob_value_lists_one (ob1, ob2)
		167	&& compare_ob_value_lists_one (ob2, ob1);
179	}	168	}
180		169
181	/* Function examines the 2 objects given to it, and returns true if	170	/* Function examines the 2 objects given to it, and returns true if
182	* they can be merged together.	171	* they can be merged together.
183	*	172	*
184	* Note that this function appears a lot longer than the macro it	173	* Note that this function appears a lot longer than the macro it
185	* replaces - this is mostly for clarity - a decent compiler should hopefully	174	* replaces - this is mostly for clarity - a decent compiler should hopefully
186	* reduce this to the same efficiency.	175	* reduce this to the same efficiency.
187	*	176	*
188	* Check nrof variable *before* calling CAN_MERGE()	177	* Check nrof variable *before* calling can_merge()
189	*	178	*
190	* Improvements made with merge: Better checking on potion, and also	179	* Improvements made with merge: Better checking on potion, and also
191	* check weight	180	* check weight
192	*/	181	*/
193
194	bool object::can_merge (object *ob1, object *ob2)	182	bool object::can_merge_slow (object *ob1, object *ob2)
195	{	183	{
196	/* A couple quicksanity checks */	184	/* A couple quicksanity checks */
197	if ((ob1 == ob2) || (ob1->type != ob2->type))	185	if (ob1 == ob2
		186	|| ob1->type != ob2->type
		187	|| ob1->speed != ob2->speed
		188	|| ob1->value != ob2->value
		189	|| ob1->name != ob2->name)
198	return 0;	190	return 0;
199		191
200	if (ob1->speed != ob2->speed)	192	/* Do not merge objects if nrof would overflow, assume nrof
		193	* is always 0 .. 2**31-1 */
		194	if (ob1->nrof > 0x7fffffff - ob2->nrof)
201	return 0;	195	return 0;
202		196
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.	197	/* 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	198	* 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	199	* 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	200	* are not equal - just if it has been identified, the been_applied
214	* flags lose any meaning.	201	* flags lose any meaning.
215	*/	202	*/
216	if (QUERY_FLAG (ob1, FLAG_IDENTIFIED))	203	if (QUERY_FLAG (ob1, FLAG_IDENTIFIED))
217	SET_FLAG (ob1, FLAG_BEEN_APPLIED);	204	SET_FLAG (ob1, FLAG_BEEN_APPLIED);
218		205
219	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))	206	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))
220	SET_FLAG (ob2, FLAG_BEEN_APPLIED);	207	SET_FLAG (ob2, FLAG_BEEN_APPLIED);
221		208
222		209	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) ||	210	|| ob1->name != ob2->name
233	(ob1->title != ob2->title) ||	211	|| ob1->title != ob2->title
234	(ob1->msg != ob2->msg) ||	212	|| ob1->msg != ob2->msg
235	(ob1->weight != ob2->weight) ||	213	|| 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) ||	214	|| ob1->attacktype != ob2->attacktype
239	(ob1->magic != ob2->magic) ||	215	|| ob1->magic != ob2->magic
240	(ob1->slaying != ob2->slaying) ||	216	|| ob1->slaying != ob2->slaying
241	(ob1->skill != ob2->skill) ||	217	|| ob1->skill != ob2->skill
242	(ob1->value != ob2->value) ||	218	|| ob1->value != ob2->value
243	(ob1->animation_id != ob2->animation_id) ||	219	|| ob1->animation_id != ob2->animation_id
		220	|| (ob1->face != ob2->face && !ob1->animation_id) // face and animation are dependent on each other
244	(ob1->client_type != ob2->client_type) ||	221	|| ob1->client_type != ob2->client_type
245	(ob1->materialname != ob2->materialname) ||	222	|| ob1->materialname != ob2->materialname
246	(ob1->lore != ob2->lore) ||	223	|| ob1->lore != ob2->lore
247	(ob1->subtype != ob2->subtype) ||	224	|| ob1->subtype != ob2->subtype
248	(ob1->move_type != ob2->move_type) ||	225	|| ob1->move_type != ob2->move_type
249	(ob1->move_block != ob2->move_block) ||	226	|| ob1->move_block != ob2->move_block
250	(ob1->move_allow != ob2->move_allow) ||	227	|| ob1->move_allow != ob2->move_allow
251	(ob1->move_on != ob2->move_on) ||	228	|| 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))	229	|| ob1->move_off != ob2->move_off
		230	|| ob1->move_slow != ob2->move_slow
		231	|| ob1->move_slow_penalty != ob2->move_slow_penalty
		232	|| memcmp (&ob1->resist, &ob2->resist, sizeof (ob1->resist))
		233	|| memcmp (&ob1->stats , &ob2->stats , sizeof (ob1->stats)))
253	return 0;	234	return 0;
254		235
		236	if ((ob1->flag ^ ob2->flag)
		237	.reset (FLAG_INV_LOCKED)
		238	.reset (FLAG_REMOVED)
		239	.any ())
		240	return 0;
		241
255	/* This is really a spellbook check - really, we should	242	/* This is really a spellbook check - we should in general
256	* check all objects in the inventory.	243	* not merge objects with real inventories, as splitting them
		244	* is hard.
257	*/	245	*/
258	if (ob1->inv || ob2->inv)	246	if (ob1->inv || ob2->inv)
259	{	247	{
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))	248	if (!(ob1->inv && ob2->inv))
266	return 0;	249	return 0; /* inventories differ in length */
		250
		251	if (ob1->inv->below || ob2->inv->below)
		252	return 0; /* more than one object in inv */
		253
		254	if (!object::can_merge (ob1->inv, ob2->inv))
		255	return 0; /* inventory objects differ */
267		256
268	/* inventory ok - still need to check rest of this object to see	257	/* inventory ok - still need to check rest of this object to see
269	* if it is valid.	258	* if it is valid.
270	*/	259	*/
271	}	260	}
…		…
279		268
280	/* Note sure why the following is the case - either the object has to	269	/* 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	270	* be animated or have a very low speed. Is this an attempted monster
282	* check?	271	* check?
283	*/	272	*/
284	if (!QUERY_FLAG (ob1, FLAG_ANIMATE) && FABS ((ob1)->speed) > MIN_ACTIVE_SPEED)	273	if (!QUERY_FLAG (ob1, FLAG_ANIMATE) && ob1->has_active_speed ())
285	return 0;	274	return 0;
286		275
287	switch (ob1->type)	276	switch (ob1->type)
288	{	277	{
289	case SCROLL:	278	case SCROLL:
290	if (ob1->level != ob2->level)	279	if (ob1->level != ob2->level)
291	return 0;	280	return 0;
292	break;	281	break;
293	}	282	}
294		283
295	if (ob1->key_values != NULL || ob2->key_values != NULL)	284	if (ob1->key_values || ob2->key_values)
296	{	285	{
297	/* At least one of these has key_values. */	286	/* At least one of these has key_values. */
298	if ((ob1->key_values == NULL) != (ob2->key_values == NULL))	287	if ((!ob1->key_values) != (!ob2->key_values))
299	/* One has fields, but the other one doesn't. */	288	return 0; /* One has fields, but the other one doesn't. */
		289
		290	if (!compare_ob_value_lists (ob1, ob2))
300	return 0;	291	return 0;
301	else if (!compare_ob_value_lists (ob1, ob2))
302	return 0;
303	}	292	}
304		293
305	//TODO: generate an event or call into perl for additional checks
306	if (ob1->self || ob2->self)	294	if (ob1->self || ob2->self)
307	{	295	{
308	ob1->optimise ();	296	ob1->optimise ();
309	ob2->optimise ();	297	ob2->optimise ();
310		298
311	if (ob1->self || ob2->self)	299	if (ob1->self || ob2->self)
		300	{
		301	int k1 = ob1->self ? HvTOTALKEYS (ob1->self) : 0;
		302	int k2 = ob2->self ? HvTOTALKEYS (ob2->self) : 0;
		303
		304	if (k1 != k2)
312	return 0;	305	return 0;
		306
		307	if (k1 == 0)
		308	return 1;
		309
		310	if (!cfperl_can_merge (ob1, ob2))
		311	return 0;
		312	}
313	}	313	}
314		314
315	/* Everything passes, must be OK. */	315	/* Everything passes, must be OK. */
316	return 1;	316	return 1;
317	}	317	}
318		318
		319	// find player who can see this object
		320	object *
		321	object::visible_to () const
		322	{
		323	if (client_visible () && !flag [FLAG_REMOVED])
		324	{
		325	// see if we are in a container of sorts
		326	if (env)
		327	{
		328	// the player inventory itself is always visible
		329	if (env->is_player ())
		330	return env;
		331
		332	// else a player could have our env open
		333	object *envest = env->outer_env_or_self ();
		334
		335	// the player itself is always on a map, so we will find him here
		336	// even if our inv is in a player.
		337	if (envest->is_on_map ())
		338	if (object *pl = envest->ms ().player ())
		339	if (pl->container == env)
		340	return pl;
		341	}
		342	else
		343	{
		344	// maybe there is a player standing on the same mapspace
		345	// this will catch the case where "this" is a player
		346	if (object *pl = ms ().player ())
		347	if ((!pl->container && pl->contr->ns && !pl->contr->ns->update_look)
		348	|| this == pl->container)
		349	return pl;
		350	}
		351	}
		352
		353	return 0;
		354	}
		355
		356	// adjust weight per container type ("of holding")
		357	static sint32
		358	weight_adjust_for (object *op, sint32 weight)
		359	{
		360	return op->type == CONTAINER
		361	? lerp (weight, 0, 100, 0, 100 - op->stats.Str)
		362	: weight;
		363	}
		364
319	/*	365	/*
		366	* adjust_weight(object, weight) adds the specified weight to an object,
		367	* and also updates how much the environment(s) is/are carrying.
		368	*/
		369	static void
		370	adjust_weight (object *op, sint32 weight)
		371	{
		372	while (op)
		373	{
		374	// adjust by actual difference to account for rounding errors
		375	// i.e. (w2 - w1) / f != w2 / f - w1 / f and the latter is correct
		376	weight = weight_adjust_for (op, op->carrying)
		377	- weight_adjust_for (op, op->carrying - weight);
		378
		379	if (!weight)
		380	return;
		381
		382	op->carrying += weight;
		383
		384	if (object *pl = op->visible_to ())
		385	if (pl != op) // player is handled lazily
		386	esrv_update_item (UPD_WEIGHT, pl, op);
		387
		388	op = op->env;
		389	}
		390	}
		391
		392	/*
320	* sum_weight() is a recursive function which calculates the weight	393	* this is a recursive function which calculates the weight
321	* an object is carrying. It goes through in figures out how much	394	* an object is carrying. It goes through op and figures out how much
322	* containers are carrying, and sums it up.	395	* containers are carrying, and sums it up.
323	*/	396	*/
324	long	397	void
325	sum_weight (object *op)	398	object::update_weight ()
326	{	399	{
327	long sum;	400	sint32 sum = 0;
328	object *inv;
329		401
330	for (sum = 0, inv = op->inv; inv != NULL; inv = inv->below)	402	for (object *op = inv; op; op = op->below)
331	{	403	{
332	if (inv->inv)	404	if (op->inv)
333	sum_weight (inv);	405	op->update_weight ();
334	sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1);	406
		407	sum += op->total_weight ();
		408	}
		409
		410	sum = weight_adjust_for (this, sum);
		411
		412	if (sum != carrying)
335	}	413	{
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;	414	carrying = sum;
342		415
343	return sum;	416	if (object *pl = visible_to ())
344	}	417	if (pl != this) // player is handled lazily
345		418	esrv_update_item (UPD_WEIGHT, pl, this);
346	/**
347	* Return the outermost environment object for a given object.
348	*/
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	void
380	dump_object2 (object *op)
381	{
382	errmsg[0] = 0;
383	return;
384	//TODO//D#d#
385	#if 0
386	char *cp;
387
388	/* object *tmp;*/
389
390	if (op->arch != NULL)
391	{	419	}
392	strcat (errmsg, "arch ");
393	strcat (errmsg, op->arch->name ? op->arch->name : "(null)");
394	strcat (errmsg, "\n");
395	if ((cp = get_ob_diff (op, &empty_archetype->clone)) != NULL)
396	strcat (errmsg, cp);
397	# if 0
398	/* Don't dump player diffs - they are too long, mostly meaningless, and
399	* will overflow the buffer.
400	* Changed so that we don't dump inventory either. This may
401	* also overflow the buffer.
402	*/
403	if (op->type != PLAYER && (cp = get_ob_diff (op, &empty_archetype->clone)) != NULL)
404	strcat (errmsg, cp);
405	for (tmp = op->inv; tmp; tmp = tmp->below)
406	dump_object2 (tmp);
407	# endif
408	strcat (errmsg, "end\n");
409	}
410	else
411	{
412	strcat (errmsg, "Object ");
413	if (op->name == NULL)
414	strcat (errmsg, "(null)");
415	else
416	strcat (errmsg, op->name);
417	strcat (errmsg, "\n");
418	# if 0
419	if ((cp = get_ob_diff (op, &empty_archetype->clone)) != NULL)
420	strcat (errmsg, cp);
421	for (tmp = op->inv; tmp; tmp = tmp->below)
422	dump_object2 (tmp);
423	# endif
424	strcat (errmsg, "end\n");
425	}
426	#endif
427	}	420	}
428		421
429	/*	422	/*
430	* Dumps an object. Returns output in the static global errmsg array.	423	* Used by: Server DM commands: dumpbelow, dump. Some error messages.
431	*/	424	*/
432		425	char *
433	void
434	dump_object (object *op)	426	dump_object (object *op)
435	{	427	{
436	if (op == NULL)	428	if (!op)
437	{	429	return strdup ("[NULLOBJ]");
438	strcpy (errmsg, "[NULL pointer]");
439	return;
440	}
441	errmsg[0] = '\0';
442	dump_object2 (op);
443	}
444		430
445	void	431	object_freezer freezer;
446	dump_all_objects (void)	432	op->write (freezer);
447	{	433	return freezer.as_string ();
448	object *op;
449
450	for (op = object::first; op != NULL; op = op->next)
451	{
452	dump_object (op);
453	fprintf (logfile, "Object %s\n", errmsg);
454	}
455	}	434	}
456		435
457	/*	436	/*
458	* get_nearest_part(multi-object, object 2) returns the part of the	437	* get_nearest_part(multi-object, object 2) returns the part of the
459	* multi-object 1 which is closest to the second object.	438	* multi-object 1 which is closest to the second object.
460	* If it's not a multi-object, it is returned.	439	* If it's not a multi-object, it is returned.
461	*/	440	*/
462
463	object *	441	object *
464	get_nearest_part (object *op, const object *pl)	442	get_nearest_part (object *op, const object *pl)
465	{	443	{
466	object *tmp, *closest;	444	object *tmp, *closest;
467	int last_dist, i;	445	int last_dist, i;
468		446
469	if (op->more == NULL)	447	if (!op->more)
470	return op;	448	return op;
		449
471	for (last_dist = distance (op, pl), closest = op, tmp = op->more; tmp != NULL; tmp = tmp->more)	450	for (last_dist = distance (op, pl), closest = op, tmp = op->more;
		451	tmp;
		452	tmp = tmp->more)
472	if ((i = distance (tmp, pl)) < last_dist)	453	if ((i = distance (tmp, pl)) < last_dist)
473	closest = tmp, last_dist = i;	454	closest = tmp, last_dist = i;
		455
474	return closest;	456	return closest;
475	}	457	}
476		458
477	/*	459	/*
478	* Returns the object which has the count-variable equal to the argument.	460	* Returns the object which has the count-variable equal to the argument.
		461	* VERRRY slow.
479	*/	462	*/
480
481	object *	463	object *
482	find_object (tag_t i)	464	find_object (tag_t i)
483	{	465	{
484	object *op;	466	for_all_objects (op)
485
486	for (op = object::first; op != NULL; op = op->next)
487	if (op->count == i)	467	if (op->count == i)
488	break;
489
490	return op;	468	return op;
		469
		470	return 0;
491	}	471	}
492		472
493	/*	473	/*
494	* Returns the first object which has a name equal to the argument.	474	* Returns the first object which has a name equal to the argument.
495	* Used only by the patch command, but not all that useful.	475	* Used only by the patch command, but not all that useful.
496	* Enables features like "patch <name-of-other-player> food 999"	476	* Enables features like "patch <name-of-other-player> food 999"
497	*/	477	*/
498
499	object *	478	object *
500	find_object_name (const char *str)	479	find_object_name (const char *str)
501	{	480	{
502	shstr_cmp str_ (str);	481	shstr_cmp str_ (str);
503	object *op;
504		482
505	for (op = object::first; op != NULL; op = op->next)	483	if (str_)
		484	for_all_objects (op)
506	if (op->name == str_)	485	if (op->name == str_)
507	break;	486	return op;
508		487
509	return op;	488	return 0;
510	}
511
512	void
513	free_all_object_data ()
514	{
515	LOG (llevDebug, "%d allocated objects\n", nrofallocobjects);
516	}	489	}
517		490
518	/*	491	/*
519	* Sets the owner and sets the skill and exp pointers to owner's current	492	* Sets the owner and sets the skill and exp pointers to owner's current
520	* skill and experience objects.	493	* skill and experience objects.
		494	* ACTUALLY NO! investigate! TODO
521	*/	495	*/
522	void	496	void
523	object::set_owner (object *owner)	497	object::set_owner (object *owner)
524	{	498	{
		499	// allow objects which own objects
525	if (!owner)	500	if (owner)
526	return;
527
528	/* next line added to allow objects which own objects */
529	/* Add a check for ownercounts in here, as I got into an endless loop
530	* with the fireball owning a poison cloud which then owned the
531	* fireball. I believe that was caused by one of the objects getting
532	* freed and then another object replacing it. Since the ownercounts
533	* didn't match, this check is valid and I believe that cause is valid.
534	*/
535	while (owner->owner)	501	while (owner->owner)
536	owner = owner->owner;	502	owner = owner->owner;
		503
		504	if (flag [FLAG_FREED])
		505	{
		506	LOG (llevError | logBacktrace, "tried to set owner of %s to %s\n", debug_desc (), owner->debug_desc ());
		507	return;
		508	}
537		509
538	this->owner = owner;	510	this->owner = owner;
		511	}
		512
		513	int
		514	object::slottype () const
		515	{
		516	if (type == SKILL)
		517	{
		518	if (IS_COMBAT_SKILL (subtype)) return slot_combat;
		519	if (IS_RANGED_SKILL (subtype)) return slot_ranged;
		520	}
		521	else
		522	{
		523	if (slot [body_combat].info) return slot_combat;
		524	if (slot [body_range ].info) return slot_ranged;
		525	}
		526
		527	return slot_none;
		528	}
		529
		530	bool
		531	object::change_weapon (object *ob)
		532	{
		533	if (current_weapon == ob)
		534	return true;
		535
		536	if (chosen_skill)
		537	chosen_skill->flag [FLAG_APPLIED] = false;
		538
		539	current_weapon = ob;
		540	chosen_skill = !ob || ob->type == SKILL ? ob : find_skill_by_name (this, ob->skill);
		541
		542	if (chosen_skill)
		543	chosen_skill->flag [FLAG_APPLIED] = true;
		544
		545	update_stats ();
		546
		547	if (ob)
		548	{
		549	// now check wether any body locations became invalid, in which case
		550	// we cannot apply the weapon at the moment.
		551	for (int i = 0; i < NUM_BODY_LOCATIONS; ++i)
		552	if (slot[i].used < 0)
		553	{
		554	current_weapon = chosen_skill = 0;
		555	update_stats ();
		556
		557	new_draw_info_format (NDI_UNIQUE, 0, this,
		558	"You try to balance all your items at once, "
		559	"but the %s is just too much for your body. "
		560	"[You need to unapply some items first - use the 'body' command to see "
		561	"how many items you cna wera on a specific body part.]", &ob->name);
		562	return false;
		563	}
		564
		565	//new_draw_info_format (NDI_UNIQUE, 0, this, "You switch to your %s.", &ob->name);
		566	}
		567	else
		568	;//new_draw_info_format (NDI_UNIQUE, 0, this, "You unwield your weapons.");
		569
		570	if (ob && !ob->flag [FLAG_APPLIED] && ob->type != SPELL)
		571	{
		572	LOG (llevError | logBacktrace, "%s changed to unapplied weapon %s",
		573	&name, ob->debug_desc ());
		574	return false;
		575	}
		576
		577	return true;
539	}	578	}
540		579
541	/* Zero the key_values on op, decrementing the shared-string	580	/* Zero the key_values on op, decrementing the shared-string
542	* refcounts and freeing the links.	581	* refcounts and freeing the links.
543	*/	582	*/
544	static void	583	static void
545	free_key_values (object *op)	584	free_key_values (object *op)
546	{	585	{
547	for (key_value *i = op->key_values; i != 0;)	586	for (key_value *i = op->key_values; i; )
548	{	587	{
549	key_value *next = i->next;	588	key_value *next = i->next;
550	delete i;	589	delete i;
551		590
552	i = next;	591	i = next;
553	}	592	}
554		593
555	op->key_values = 0;	594	op->key_values = 0;
556	}	595	}
557		596
558	void object::clear ()
559	{
560	attachable_base::clear ();
561
562	free_key_values (this);
563
564	owner = 0;
565	name = 0;
566	name_pl = 0;
567	title = 0;
568	race = 0;
569	slaying = 0;
570	skill = 0;
571	msg = 0;
572	lore = 0;
573	custom_name = 0;
574	materialname = 0;
575	contr = 0;
576	below = 0;
577	above = 0;
578	inv = 0;
579	container = 0;
580	env = 0;
581	more = 0;
582	head = 0;
583	map = 0;
584	active_next = 0;
585	active_prev = 0;
586
587	memset (static_cast<object_pod *>(this), 0, sizeof (object_pod));
588
589	SET_FLAG (this, FLAG_REMOVED);
590
591	/* What is not cleared is next, prev, and count */
592
593	expmul = 1.0;
594	face = blank_face;
595
596	if (settings.casting_time)
597	casting_time = -1;
598	}
599
600	void object::clone (object *destination)
601	{
602	*(object_copy *)destination = *this;
603	*(object_pod *)destination = *this;
604
605	if (self || cb)
606	INVOKE_OBJECT (CLONE, this, ARG_OBJECT (destination));
607	}
608
609	/*	597	/*
610	* copy object first frees everything allocated by the second object,	598	* copy_to first frees everything allocated by the dst object,
611	* and then copies the contends of the first object into the second	599	* and then copies the contents of itself into the second
612	* object, allocating what needs to be allocated. Basically, any	600	* object, allocating what needs to be allocated. Basically, any
613	* data that is malloc'd needs to be re-malloc/copied. Otherwise,	601	* data that is malloc'd needs to be re-malloc/copied. Otherwise,
614	* if the first object is freed, the pointers in the new object	602	* if the first object is freed, the pointers in the new object
615	* will point at garbage.	603	* will point at garbage.
616	*/	604	*/
617	void	605	void
618	copy_object (object *op2, object *op)	606	object::copy_to (object *dst)
619	{	607	{
620	bool is_freed = QUERY_FLAG (op, FLAG_FREED);	608	dst->remove ();
621	bool is_removed = QUERY_FLAG (op, FLAG_REMOVED);	609	*(object_copy *)dst = *this;
622		610	dst->flag [FLAG_REMOVED] = true;
623	op2->clone (op);
624
625	if (is_freed)
626	SET_FLAG (op, FLAG_FREED);
627	if (is_removed)
628	SET_FLAG (op, FLAG_REMOVED);
629
630	if (op2->speed < 0)
631	op->speed_left = op2->speed_left - RANDOM () % 200 / 100.0;
632		611
633	/* Copy over key_values, if any. */	612	/* Copy over key_values, if any. */
634	if (op2->key_values)	613	if (key_values)
635	{	614	{
636	key_value *tail = 0;	615	key_value *tail = 0;
637	key_value *i;
638
639	op->key_values = 0;	616	dst->key_values = 0;
640		617
641	for (i = op2->key_values; i; i = i->next)	618	for (key_value *i = key_values; i; i = i->next)
642	{	619	{
643	key_value *new_link = new key_value;	620	key_value *new_link = new key_value;
644		621
645	new_link->next = 0;	622	new_link->next = 0;
646	new_link->key = i->key;	623	new_link->key = i->key;
647	new_link->value = i->value;	624	new_link->value = i->value;
648		625
649	/* Try and be clever here, too. */	626	/* Try and be clever here, too. */
650	if (!op->key_values)	627	if (!dst->key_values)
651	{	628	{
652	op->key_values = new_link;	629	dst->key_values = new_link;
653	tail = new_link;	630	tail = new_link;
654	}	631	}
655	else	632	else
656	{	633	{
657	tail->next = new_link;	634	tail->next = new_link;
658	tail = new_link;	635	tail = new_link;
659	}	636	}
660	}	637	}
661	}	638	}
662		639
663	update_ob_speed (op);	640	if (speed < 0)
		641	dst->speed_left -= rndm ();
		642
		643	dst->activate ();
		644	}
		645
		646	void
		647	object::instantiate ()
		648	{
		649	if (!uuid.seq) // HACK
		650	uuid = UUID::gen ();
		651
		652	speed_left = -0.1f;
		653	/* copy the body_info to the body_used - this is only really
		654	* need for monsters, but doesn't hurt to do it for everything.
		655	* by doing so, when a monster is created, it has good starting
		656	* values for the body_used info, so when items are created
		657	* for it, they can be properly equipped.
		658	*/
		659	for (int i = NUM_BODY_LOCATIONS; i--; )
		660	slot[i].used = slot[i].info;
		661
		662	attachable::instantiate ();
		663	}
		664
		665	object *
		666	object::clone ()
		667	{
		668	object *neu = create ();
		669	copy_to (neu);
		670	neu->map = map; // not copied by copy_to
		671	return neu;
664	}	672	}
665		673
666	/*	674	/*
667	* If an object with the IS_TURNABLE() flag needs to be turned due	675	* If an object with the IS_TURNABLE() flag needs to be turned due
668	* to the closest player being on the other side, this function can	676	* to the closest player being on the other side, this function can
669	* be called to update the face variable, _and_ how it looks on the map.	677	* be called to update the face variable, _and_ how it looks on the map.
670	*/	678	*/
671
672	void	679	void
673	update_turn_face (object *op)	680	update_turn_face (object *op)
674	{	681	{
675	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || op->arch == NULL)	682	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || !op->arch)
676	return;	683	return;
		684
677	SET_ANIMATION (op, op->direction);	685	SET_ANIMATION (op, op->direction);
678	update_object (op, UP_OBJ_FACE);	686	update_object (op, UP_OBJ_FACE);
679	}	687	}
680		688
681	/*	689	/*
682	* Updates the speed of an object. If the speed changes from 0 to another	690	* Updates the speed of an object. If the speed changes from 0 to another
683	* value, or vice versa, then add/remove the object from the active list.	691	* value, or vice versa, then add/remove the object from the active list.
684	* This function needs to be called whenever the speed of an object changes.	692	* This function needs to be called whenever the speed of an object changes.
685	*/	693	*/
686	void	694	void
687	update_ob_speed (object *op)	695	object::set_speed (float speed)
688	{	696	{
689	extern int arch_init;	697	if (flag [FLAG_FREED] && speed)
690
691	/* No reason putting the archetypes objects on the speed list,
692	* since they never really need to be updated.
693	*/
694
695	if (QUERY_FLAG (op, FLAG_FREED) && op->speed)
696	{	698	{
697	LOG (llevError, "Object %s is freed but has speed.\n", &op->name);	699	LOG (llevError, "Object %s is freed but has speed.\n", &name);
698	#ifdef MANY_CORES
699	abort ();
700	#else
701	op->speed = 0;	700	speed = 0;
702	#endif
703	}
704
705	if (arch_init)
706	return;
707
708	if (FABS (op->speed) > MIN_ACTIVE_SPEED)
709	{	701	}
710	/* If already on active list, don't do anything */
711	if (op->active_next || op->active_prev || op == active_objects)
712	return;
713		702
714	/* process_events() expects us to insert the object at the beginning	703	this->speed = speed;
715	* of the list. */
716	op->active_next = active_objects;
717		704
718	if (op->active_next != NULL)	705	if (has_active_speed ())
719	op->active_next->active_prev = op;	706	activate ();
720
721	active_objects = op;
722	}
723	else	707	else
724	{	708	deactivate ();
725	/* If not on the active list, nothing needs to be done */
726	if (!op->active_next && !op->active_prev && op != active_objects)
727	return;
728
729	if (op->active_prev == NULL)
730	{
731	active_objects = op->active_next;
732
733	if (op->active_next != NULL)
734	op->active_next->active_prev = NULL;
735	}
736	else
737	{
738	op->active_prev->active_next = op->active_next;
739
740	if (op->active_next)
741	op->active_next->active_prev = op->active_prev;
742	}
743
744	op->active_next = NULL;
745	op->active_prev = NULL;
746	}
747	}	709	}
748		710
749	/* This function removes object 'op' from the list of active
750	* objects.
751	* This should only be used for style maps or other such
752	* reference maps where you don't want an object that isn't
753	* in play chewing up cpu time getting processed.
754	* The reverse of this is to call update_ob_speed, which
755	* will do the right thing based on the speed of the object.
756	*/
757	void
758	remove_from_active_list (object *op)
759	{
760	/* If not on the active list, nothing needs to be done */
761	if (!op->active_next && !op->active_prev && op != active_objects)
762	return;
763
764	if (op->active_prev == NULL)
765	{
766	active_objects = op->active_next;
767	if (op->active_next != NULL)
768	op->active_next->active_prev = NULL;
769	}
770	else
771	{
772	op->active_prev->active_next = op->active_next;
773	if (op->active_next)
774	op->active_next->active_prev = op->active_prev;
775	}
776	op->active_next = NULL;
777	op->active_prev = NULL;
778	}
779
780	/*	711	/*
781	* update_object() updates the array which represents the map.	712	* update_object() updates the the map.
782	* It takes into account invisible objects (and represent squares covered	713	* It takes into account invisible objects (and represent squares covered
783	* by invisible objects by whatever is below them (unless it's another	714	* by invisible objects by whatever is below them (unless it's another
784	* invisible object, etc...)	715	* invisible object, etc...)
785	* If the object being updated is beneath a player, the look-window	716	* If the object being updated is beneath a player, the look-window
786	* of that player is updated (this might be a suboptimal way of	717	* of that player is updated (this might be a suboptimal way of
787	* updating that window, though, since update_object() is called _often_)	718	* updating that window, though, since update_object() is called _often_)
788	*	719	*
789	* action is a hint of what the caller believes need to be done.	720	* action is a hint of what the caller believes need to be done.
790	* For example, if the only thing that has changed is the face (due to
791	* an animation), we don't need to call update_position until that actually
792	* comes into view of a player. OTOH, many other things, like addition/removal
793	* of walls or living creatures may need us to update the flags now.
794	* current action are:	721	* current action are:
795	* UP_OBJ_INSERT: op was inserted	722	* UP_OBJ_INSERT: op was inserted
796	* UP_OBJ_REMOVE: op was removed	723	* UP_OBJ_REMOVE: op was removed
797	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update	724	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update
798	* as that is easier than trying to look at what may have changed.	725	* as that is easier than trying to look at what may have changed.
799	* UP_OBJ_FACE: only the objects face has changed.	726	* UP_OBJ_FACE: only the objects face has changed.
800	*/	727	*/
801
802	void	728	void
803	update_object (object *op, int action)	729	update_object (object *op, int action)
804	{	730	{
805	int update_now = 0, flags;	731	if (!op)
806	MoveType move_on, move_off, move_block, move_slow;
807
808	if (op == NULL)
809	{	732	{
810	/* this should never happen */	733	/* this should never happen */
811	LOG (llevDebug, "update_object() called for NULL object.\n");	734	LOG (llevError | logBacktrace, "update_object() called for NULL object.\n");
812	return;	735	return;
813	}	736	}
814		737
815	if (op->env != NULL)	738	if (!op->is_on_map ())
816	{	739	{
817	/* Animation is currently handled by client, so nothing	740	/* Animation is currently handled by client, so nothing
818	* to do in this case.	741	* to do in this case.
819	*/	742	*/
820	return;	743	return;
821	}	744	}
822		745
823	/* If the map is saving, don't do anything as everything is
824	* going to get freed anyways.
825	*/
826	if (!op->map || op->map->in_memory == MAP_SAVING)
827	return;
828
829	/* make sure the object is within map boundaries */	746	/* make sure the object is within map boundaries */
830	if (op->x < 0 || op->x >= MAP_WIDTH (op->map) || op->y < 0 || op->y >= MAP_HEIGHT (op->map))	747	if (op->x < 0 || op->x >= op->map->width || op->y < 0 || op->y >= op->map->height)
831	{	748	{
832	LOG (llevError, "update_object() called for object out of map!\n");	749	LOG (llevError, "update_object() called for object out of map!\n");
833	#ifdef MANY_CORES	750	#ifdef MANY_CORES
834	abort ();	751	abort ();
835	#endif	752	#endif
836	return;	753	return;
837	}	754	}
838		755
839	flags = GET_MAP_FLAGS (op->map, op->x, op->y);	756	mapspace &m = op->ms ();
840	SET_MAP_FLAGS (op->map, op->x, op->y, flags | P_NEED_UPDATE);
841	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);
842	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);
843	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);
844	move_off = GET_MAP_MOVE_OFF (op->map, op->x, op->y);
845		757
		758	if (!(m.flags_ & P_UPTODATE))
		759	/* nop */;
846	if (action == UP_OBJ_INSERT)	760	else if (action == UP_OBJ_INSERT)
847	{	761	{
		762	// this is likely overkill, TODO: revisit (schmorp)
848	if (QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(flags & P_BLOCKSVIEW))	763	if ((QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(m.flags_ & P_BLOCKSVIEW))
849	update_now = 1;
850
851	if (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(flags & P_NO_MAGIC))	764	|| (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(m.flags_ & P_NO_MAGIC))
852	update_now = 1;	765	|| (op->is_player () && !(m.flags_ & P_PLAYER))
853		766	|| (op->type == SAFE_GROUND && !(m.flags_ & P_SAFE))
		767	|| (QUERY_FLAG (op, FLAG_ALIVE) && !(m.flags_ & P_IS_ALIVE))
854	if (QUERY_FLAG (op, FLAG_DAMNED) && !(flags & P_NO_CLERIC))	768	|| (QUERY_FLAG (op, FLAG_DAMNED) && !(m.flags_ & P_NO_CLERIC))
855	update_now = 1;
856
857	if (QUERY_FLAG (op, FLAG_ALIVE) && !(flags & P_IS_ALIVE))
858	update_now = 1;
859
860	if (op->type == SAFE_GROUND && !(flags & P_SAFE))
861	update_now = 1;
862
863	if ((move_on | op->move_on) != move_on)	769	|| (m.move_on | op->move_on ) != m.move_on
864	update_now = 1;
865
866	if ((move_off | op->move_off) != move_off)	770	|| (m.move_off | op->move_off ) != m.move_off
867	update_now = 1;	771	|| (m.move_slow | op->move_slow) != m.move_slow
868
869	/* This isn't perfect, but I don't expect a lot of objects to	772	/* This isn't perfect, but I don't expect a lot of objects to
870	* to have move_allow right now.	773	* have move_allow right now.
871	*/	774	*/
872	if (((move_block | op->move_block) & ~op->move_allow) != move_block)	775	|| ((m.move_block | op->move_block) & ~op->move_allow) != m.move_block
873	update_now = 1;	776	|| 1) // the above is not strong enough a test to skip updating. los maybe? TODO (Schmorp)
874		777	m.invalidate ();
875	if ((move_slow | op->move_slow) != move_slow)
876	update_now = 1;
877	}	778	}
878	/* if the object is being removed, we can't make intelligent	779	/* if the object is being removed, we can't make intelligent
879	* decisions, because remove_ob can't really pass the object	780	* decisions, because remove_ob can't really pass the object
880	* that is being removed.	781	* that is being removed.
881	*/	782	*/
882	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)	783	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)
883	update_now = 1;	784	m.invalidate ();
884	else if (action == UP_OBJ_FACE)	785	else if (action == UP_OBJ_FACE)
885	/* Nothing to do for that case */ ;	786	/* Nothing to do for that case */ ;
886	else	787	else
887	LOG (llevError, "update_object called with invalid action: %d\n", action);	788	LOG (llevError, "update_object called with invalid action: %d\n", action);
888		789
889	if (update_now)
890	{
891	SET_MAP_FLAGS (op->map, op->x, op->y, flags | P_NO_ERROR | P_NEED_UPDATE);
892	update_position (op->map, op->x, op->y);
893	}
894
895	if (op->more != NULL)	790	if (op->more)
896	update_object (op->more, action);	791	update_object (op->more, action);
897	}	792	}
898		793
899	object::vector object::mortals;
900	object::vector object::objects; // not yet used
901	object *object::first;
902
903	void object::free_mortals ()
904	{
905	for (AUTODECL (i, mortals.begin ()); i != mortals.end ();)
906	if ((*i)->refcnt)
907	++i; // further delay freeing
908	else
909	{
910	delete *i;
911	mortals.erase (i);
912	}
913
914	static int lastmortals = 0;//D
915
916	if (mortals.size() != lastmortals && lastmortals > 100)//D
917	{
918	lastmortals = mortals.size ();//D
919	LOG (llevDebug, "%d objects in mortal queue\n", lastmortals);//D
920	}
921	}
922
923	object::object ()	794	object::object ()
924	{	795	{
925	SET_FLAG (this, FLAG_REMOVED);	796	SET_FLAG (this, FLAG_REMOVED);
926		797
927	expmul = 1.0;	798	//expmul = 1.0; declared const for the time being
928	face = blank_face;	799	face = blank_face;
929	}	800	}
930		801
931	object::~object ()	802	object::~object ()
932	{	803	{
		804	unlink ();
		805
933	free_key_values (this);	806	free_key_values (this);
934	}	807	}
935		808
		809	static int object_count;
		810
936	void object::link ()	811	void object::link ()
937	{	812	{
		813	assert (!index);//D
		814	uuid = UUID::gen ();
938	count = ++ob_count;	815	count = ++object_count;
939	uuid = gen_uuid ();
940		816
941	prev = 0;	817	refcnt_inc ();
942	next = object::first;	818	objects.insert (this);
943
944	if (object::first)
945	object::first->prev = this;
946
947	object::first = this;
948	}	819	}
949		820
950	void object::unlink ()	821	void object::unlink ()
951	{	822	{
952	if (this == object::first)	823	if (!index)
953	object::first = next;	824	return;
954		825
955	/* Remove this object from the list of used objects */	826	objects.erase (this);
956	if (prev) prev->next = next;	827	refcnt_dec ();
957	if (next) next->prev = prev;	828	}
958		829
959	prev = 0;	830	void
960	next = 0;	831	object::activate ()
		832	{
		833	/* If already on active list, don't do anything */
		834	if (active)
		835	return;
		836
		837	if (has_active_speed ())
		838	{
		839	if (flag [FLAG_FREED])
		840	LOG (llevError | logBacktrace, "BUG: tried to activate freed object %s\n", debug_desc ());//D
		841
		842	actives.insert (this);
		843	}
		844	}
		845
		846	void
		847	object::activate_recursive ()
		848	{
		849	activate ();
		850
		851	for (object *op = inv; op; op = op->below)
		852	op->activate_recursive ();
		853	}
		854
		855	/* This function removes object 'op' from the list of active
		856	* objects.
		857	* This should only be used for style maps or other such
		858	* reference maps where you don't want an object that isn't
		859	* in play chewing up cpu time getting processed.
		860	* The reverse of this is to call update_ob_speed, which
		861	* will do the right thing based on the speed of the object.
		862	*/
		863	void
		864	object::deactivate ()
		865	{
		866	/* If not on the active list, nothing needs to be done */
		867	if (!active)
		868	return;
		869
		870	actives.erase (this);
		871	}
		872
		873	void
		874	object::deactivate_recursive ()
		875	{
		876	for (object *op = inv; op; op = op->below)
		877	op->deactivate_recursive ();
		878
		879	deactivate ();
		880	}
		881
		882	void
		883	object::set_flag_inv (int flag, int value)
		884	{
		885	for (object *op = inv; op; op = op->below)
		886	{
		887	op->flag [flag] = value;
		888	op->set_flag_inv (flag, value);
		889	}
		890	}
		891
		892	/*
		893	* Remove and free all objects in the inventory of the given object.
		894	* object.c ?
		895	*/
		896	void
		897	object::destroy_inv (bool drop_to_ground)
		898	{
		899	// need to check first, because the checks below might segfault
		900	// as we might be on an invalid mapspace and crossfire code
		901	// is too buggy to ensure that the inventory is empty.
		902	// corollary: if you create arrows etc. with stuff in its inventory,
		903	// cf will crash below with off-map x and y
		904	if (!inv)
		905	return;
		906
		907	/* Only if the space blocks everything do we not process -
		908	* if some form of movement is allowed, let objects
		909	* drop on that space.
		910	*/
		911	if (!drop_to_ground
		912	|| !map
		913	|| map->in_memory != MAP_ACTIVE
		914	|| map->no_drop
		915	|| ms ().move_block == MOVE_ALL)
		916	{
		917	while (inv)
		918	inv->destroy ();
		919	}
		920	else
		921	{ /* Put objects in inventory onto this space */
		922	while (inv)
		923	{
		924	object *op = inv;
		925
		926	if (op->flag [FLAG_STARTEQUIP]
		927	|| op->flag [FLAG_NO_DROP]
		928	|| op->type == RUNE
		929	|| op->type == TRAP
		930	|| op->flag [FLAG_IS_A_TEMPLATE]
		931	|| op->flag [FLAG_DESTROY_ON_DEATH])
		932	op->destroy ();
		933	else
		934	map->insert (op, x, y);
		935	}
		936	}
961	}	937	}
962		938
963	object *object::create ()	939	object *object::create ()
964	{	940	{
965	object *op = new object;	941	object *op = new object;
966	op->link ();	942	op->link ();
967	return op;	943	return op;
968	}	944	}
969		945
970	/*	946	static struct freed_map : maptile
971	* free_object() frees everything allocated by an object, removes
972	* it from the list of used objects, and puts it on the list of
973	* free objects. The IS_FREED() flag is set in the object.
974	* The object must have been removed by remove_ob() first for
975	* this function to succeed.
976	*
977	* If destroy_inventory is set, free inventory as well. Else drop items in
978	* inventory to the ground.
979	*/
980	void object::destroy (bool destroy_inventory)
981	{	947	{
982	if (QUERY_FLAG (this, FLAG_FREED))	948	freed_map ()
		949	{
		950	path = "<freed objects map>";
		951	name = "/internal/freed_objects_map";
		952	width = 3;
		953	height = 3;
		954	no_drop = 1;
		955	no_reset = 1;
		956
		957	alloc ();
		958	in_memory = MAP_ACTIVE;
		959	}
		960
		961	~freed_map ()
		962	{
		963	destroy ();
		964	}
		965	} freed_map; // freed objects are moved here to avoid crashes
		966
		967	void
		968	object::do_destroy ()
		969	{
		970	if (flag [FLAG_IS_LINKED])
		971	remove_link ();
		972
		973	if (flag [FLAG_FRIENDLY])
		974	remove_friendly_object (this);
		975
		976	remove ();
		977
		978	attachable::do_destroy ();
		979
		980	deactivate ();
		981	unlink ();
		982
		983	flag [FLAG_FREED] = 1;
		984
		985	// hack to ensure that freed objects still have a valid map
		986	map = &freed_map;
		987	x = 1;
		988	y = 1;
		989
		990	if (more)
		991	{
		992	more->destroy ();
		993	more = 0;
		994	}
		995
		996	head = 0;
		997
		998	// clear those pointers that likely might cause circular references
		999	owner = 0;
		1000	enemy = 0;
		1001	attacked_by = 0;
		1002	current_weapon = 0;
		1003	}
		1004
		1005	void
		1006	object::destroy ()
		1007	{
		1008	if (destroyed ())
983	return;	1009	return;
984		1010
985	if (QUERY_FLAG (this, FLAG_FRIENDLY))	1011	if (!is_head () && !head->destroyed ())
986	remove_friendly_object (this);
987
988	if (!QUERY_FLAG (this, FLAG_REMOVED))
989	remove_ob (this);
990
991	SET_FLAG (this, FLAG_FREED);
992
993	if (more)
994	{
995	more->destroy (destroy_inventory);
996	more = 0;
997	}	1012	{
998		1013	LOG (llevError | logBacktrace, "tried to destroy the tail of an object");
999	if (inv)	1014	head->destroy ();
		1015	return;
1000	{	1016	}
1001	/* Only if the space blocks everything do we not process -
1002	* if some form of movement is allowed, let objects
1003	* drop on that space.
1004	*/
1005	if (destroy_inventory || !map || map->in_memory != MAP_IN_MEMORY || GET_MAP_MOVE_BLOCK (map, x, y) == MOVE_ALL)
1006	{
1007	object *op = inv;
1008		1017
1009	while (op)	1018	destroy_inv (false);
1010	{
1011	object *tmp = op->below;
1012	op->destroy (destroy_inventory);
1013	op = tmp;
1014	}
1015	}
1016	else
1017	{ /* Put objects in inventory onto this space */
1018	object *op = inv;
1019		1019
1020	while (op)	1020	if (is_head ())
1021	{	1021	if (sound_destroy)
1022	object *tmp = op->below;	1022	play_sound (sound_destroy);
		1023	else if (flag [FLAG_MONSTER])
		1024	play_sound (sound_find ("monster_destroy")); // quick hack, too lazy to create a generic mechanism
1023		1025
1024	remove_ob (op);	1026	attachable::destroy ();
1025
1026	if (QUERY_FLAG (op, FLAG_STARTEQUIP)
1027	|| QUERY_FLAG (op, FLAG_NO_DROP) || op->type == RUNE || op->type == TRAP || QUERY_FLAG (op, FLAG_IS_A_TEMPLATE))
1028	free_object (op);
1029	else
1030	{
1031	op->x = x;
1032	op->y = y;
1033	insert_ob_in_map (op, map, 0, 0); /* Insert in same map as the envir */
1034	}
1035
1036	op = tmp;
1037	}
1038	}
1039	}
1040
1041	// clear those pointers that likely might have circular references to us
1042	owner = 0;
1043	enemy = 0;
1044	attacked_by = 0;
1045
1046	// only relevant for players(?), but make sure of it anyways
1047	contr = 0;
1048
1049	/* Remove object from the active list */
1050	speed = 0;
1051	update_ob_speed (this);
1052
1053	unlink ();
1054
1055	mortals.push_back (this);
1056	}	1027	}
1057		1028
1058	/*	1029	/* op->remove ():
1059	* sub_weight() recursively (outwards) subtracts a number from the
1060	* weight of an object (and what is carried by it's environment(s)).
1061	*/
1062
1063	void
1064	sub_weight (object *op, signed long weight)
1065	{
1066	while (op != NULL)
1067	{
1068	if (op->type == CONTAINER)
1069	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1070
1071	op->carrying -= weight;
1072	op = op->env;
1073	}
1074	}
1075
1076	/* remove_ob(op):
1077	* This function removes the object op from the linked list of objects	1030	* This function removes the object op from the linked list of objects
1078	* which it is currently tied to. When this function is done, the	1031	* which it is currently tied to. When this function is done, the
1079	* object will have no environment. If the object previously had an	1032	* object will have no environment. If the object previously had an
1080	* environment, the x and y coordinates will be updated to	1033	* environment, the x and y coordinates will be updated to
1081	* the previous environment.	1034	* the previous environment.
1082	* Beware: This function is called from the editor as well!
1083	*/	1035	*/
1084
1085	void	1036	void
1086	remove_ob (object *op)	1037	object::do_remove ()
1087	{	1038	{
1088	object *tmp, *last = 0;	1039	object *tmp, *last = 0;
1089	object *otmp;	1040	object *otmp;
1090		1041
1091	int check_walk_off;	1042	if (flag [FLAG_REMOVED])
1092	maptile *m;
1093
1094	sint16 x, y;
1095
1096	if (QUERY_FLAG (op, FLAG_REMOVED))
1097	return;	1043	return;
1098		1044
1099	SET_FLAG (op, FLAG_REMOVED);	1045	INVOKE_OBJECT (REMOVE, this);
1100		1046
1101	if (op->more != NULL)	1047	flag [FLAG_REMOVED] = true;
1102	remove_ob (op->more);	1048
		1049	if (more)
		1050	more->remove ();
1103		1051
1104	/*	1052	/*
1105	* In this case, the object to be removed is in someones	1053	* In this case, the object to be removed is in someones
1106	* inventory.	1054	* inventory.
1107	*/	1055	*/
1108	if (op->env != NULL)	1056	if (env)
1109	{	1057	{
1110	if (op->nrof)	1058	flag [FLAG_REMOVED] = false; // hack around the issue of visible_to checking flag_removed
1111	sub_weight (op->env, op->weight * op->nrof);	1059	if (object *pl = visible_to ())
1112	else	1060	esrv_del_item (pl->contr, count);
1113	sub_weight (op->env, op->weight + op->carrying);	1061	flag [FLAG_REMOVED] = true; // hack around the issue of visible_to checking flag_removed
		1062
		1063	adjust_weight (env, -total_weight ());
		1064
		1065	object *pl = in_player ();
		1066
		1067	/* we set up values so that it could be inserted into
		1068	* the map, but we don't actually do that - it is up
		1069	* to the caller to decide what we want to do.
		1070	*/
		1071	map = env->map;
		1072	x = env->x;
		1073	y = env->y;
		1074
		1075	// make sure cmov optimisation is applicable
		1076	*(above ? &above->below : &env->inv) = below;
		1077	*(below ? &below->above : &above ) = above; // &above is just a dummy
		1078
		1079	above = 0;
		1080	below = 0;
		1081	env = 0;
1114		1082
1115	/* NO_FIX_PLAYER is set when a great many changes are being	1083	/* NO_FIX_PLAYER is set when a great many changes are being
1116	* made to players inventory. If set, avoiding the call	1084	* made to players inventory. If set, avoiding the call
1117	* to save cpu time.	1085	* to save cpu time.
1118	*/	1086	*/
1119	if ((otmp = is_player_inv (op->env)) != NULL && otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))	1087	if (pl)
1120	fix_player (otmp);	1088	if (pl->is_player () && (glow_radius || !QUERY_FLAG (pl, FLAG_NO_FIX_PLAYER)))
		1089	{
		1090	pl->update_stats ();
1121		1091
1122	if (op->above != NULL)	1092	if (glow_radius && pl->is_on_map ())
1123	op->above->below = op->below;	1093	update_all_los (pl->map, pl->x, pl->y);
1124	else	1094	}
1125	op->env->inv = op->below;
1126
1127	if (op->below != NULL)
1128	op->below->above = op->above;
1129
1130	/* we set up values so that it could be inserted into
1131	* the map, but we don't actually do that - it is up
1132	* to the caller to decide what we want to do.
1133	*/
1134	op->x = op->env->x, op->y = op->env->y;
1135	op->map = op->env->map;
1136	op->above = NULL, op->below = NULL;
1137	op->env = NULL;
1138	}	1095	}
1139	else if (op->map)	1096	else if (map)
1140	{	1097	{
1141	x = op->x;	1098	map->dirty = true;
1142	y = op->y;	1099	mapspace &ms = this->ms ();
1143	m = get_map_from_coord (op->map, &x, &y);
1144		1100
1145	if (!m)	1101	if (object *pl = ms.player ())
1146	{	1102	{
1147	LOG (llevError, "remove_ob called when object was on map but appears to not be within valid coordinates? %s (%d,%d)\n",	1103	if (is_player ())
1148	op->map->path, op->x, op->y);
1149	/* in old days, we used to set x and y to 0 and continue.
1150	* it seems if we get into this case, something is probablye
1151	* screwed up and should be fixed.
1152	*/	1104	{
1153	abort ();	1105	if (!flag [FLAG_WIZPASS])
		1106	ms.smell = ++mapspace::smellcount; // remember the smell of the player
		1107
		1108	// leaving a spot always closes any open container on the ground
		1109	if (container && !container->env)
		1110	// this causes spurious floorbox updates, but it ensures
		1111	// that the CLOSE event is being sent.
		1112	close_container ();
		1113
		1114	--map->players;
		1115	map->touch ();
		1116	}
		1117	else if (pl->container == this)
		1118	{
		1119	// removing a container should close it
		1120	close_container ();
		1121	}
		1122
		1123	esrv_del_item (pl->contr, count);
1154	}	1124	}
1155		1125
1156	if (op->map != m)
1157	LOG (llevDebug, "remove_ob: Object not really on map it claimed to be on? %s != %s, %d,%d != %d,%d\n",
1158	op->map->path, m->path, op->x, op->y, x, y);
1159
1160	/* Re did the following section of code - it looks like it had
1161	* lots of logic for things we no longer care about
1162	*/
1163
1164	/* link the object above us */	1126	/* link the object above us */
1165	if (op->above)	1127	// re-link, make sure compiler can easily use cmove
1166	op->above->below = op->below;	1128	*(above ? &above->below : &ms.top) = below;
1167	else	1129	*(below ? &below->above : &ms.bot) = above;
1168	SET_MAP_TOP (m, x, y, op->below); /* we were top, set new top */
1169		1130
1170	/* Relink the object below us, if there is one */	1131	above = 0;
1171	if (op->below)	1132	below = 0;
1172	op->below->above = op->above;	1133
1173	else	1134	ms.invalidate ();
		1135
		1136	if (map->in_memory == MAP_SAVING)
		1137	return;
		1138
		1139	int check_walk_off = !flag [FLAG_NO_APPLY];
		1140
		1141	if (object *pl = ms.player ())
1174	{	1142	{
1175	/* Nothing below, which means we need to relink map object for this space	1143	if (pl->container == this)
1176	* use translated coordinates in case some oddness with map tiling is	1144	/* If a container that the player is currently using somehow gets
1177	* evident	1145	* removed (most likely destroyed), update the player view
		1146	* appropriately.
1178	*/	1147	*/
1179	if (GET_MAP_OB (m, x, y) != op)	1148	pl->close_container ();
1180	{
1181	dump_object (op);
1182	LOG (llevError,
1183	"remove_ob: GET_MAP_OB does not return object to be removed even though it appears to be on the bottom?\n%s\n", errmsg);
1184	dump_object (GET_MAP_OB (m, x, y));
1185	LOG (llevError, "%s\n", errmsg);
1186	}
1187		1149
1188	SET_MAP_OB (m, x, y, op->above); /* goes on above it. */	1150	//TODO: the floorbox prev/next might need updating
		1151	//esrv_del_item (pl->contr, count);
		1152	//TODO: update floorbox to preserve ordering
		1153	if (pl->contr->ns)
		1154	pl->contr->ns->floorbox_update ();
1189	}	1155	}
1190		1156
1191	op->above = 0;	1157	for (tmp = ms.bot; tmp; tmp = tmp->above)
1192	op->below = 0;
1193
1194	if (op->map->in_memory == MAP_SAVING)
1195	return;
1196
1197	check_walk_off = !QUERY_FLAG (op, FLAG_NO_APPLY);
1198
1199	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)
1200	{	1158	{
1201	/* No point updating the players look faces if he is the object	1159	/* No point updating the players look faces if he is the object
1202	* being removed.	1160	* being removed.
1203	*/	1161	*/
1204		1162
1205	if (tmp->type == PLAYER && tmp != op)	1163	/* See if object moving off should effect something */
		1164	if (check_walk_off
		1165	&& ((move_type & tmp->move_off)
		1166	&& (move_type & ~tmp->move_off & ~tmp->move_block) == 0))
1206	{	1167	{
1207	/* If a container that the player is currently using somehow gets
1208	* removed (most likely destroyed), update the player view
1209	* appropriately.
1210	*/
1211	if (tmp->container == op)
1212	{
1213	CLEAR_FLAG (op, FLAG_APPLIED);
1214	tmp->container = NULL;
1215	}
1216
1217	tmp->contr->socket.update_look = 1;
1218	}
1219
1220	/* See if player moving off should effect something */
1221	if (check_walk_off
1222	&& ((op->move_type & tmp->move_off)
1223	&& (op->move_type & ~tmp->move_off & ~tmp->move_block) == 0))
1224	{
1225	move_apply (tmp, op, NULL);	1168	move_apply (tmp, this, 0);
1226		1169
1227	if (op->destroyed ())	1170	if (destroyed ())
1228	LOG (llevError, "BUG: remove_ob(): name %s, destroyed leaving object\n", tmp->debug_desc ());	1171	LOG (llevError, "BUG: remove_ob(): name %s, destroyed leaving object\n", tmp->debug_desc ());
1229	}	1172	}
1230		1173
1231	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */
1232
1233	if (tmp->above == tmp)
1234	tmp->above = NULL;
1235
1236	last = tmp;	1174	last = tmp;
1237	}	1175	}
1238		1176
1239	/* last == NULL of there are no objects on this space */	1177	if (affects_los ())
1240	if (last == NULL)
1241	{
1242	/* set P_NEED_UPDATE, otherwise update_position will complain. In theory,
1243	* we could preserve the flags (GET_MAP_FLAGS), but update_position figures
1244	* those out anyways, and if there are any flags set right now, they won't
1245	* be correct anyways.
1246	*/
1247	SET_MAP_FLAGS (op->map, op->x, op->y, P_NEED_UPDATE);
1248	update_position (op->map, op->x, op->y);
1249	}
1250	else
1251	update_object (last, UP_OBJ_REMOVE);
1252
1253	if (QUERY_FLAG (op, FLAG_BLOCKSVIEW) || (op->glow_radius != 0))
1254	update_all_los (op->map, op->x, op->y);	1178	update_all_los (map, x, y);
1255	}	1179	}
1256	}	1180	}
1257		1181
1258	/*	1182	/*
1259	* merge_ob(op,top):	1183	* merge_ob(op,top):
…		…
1267	merge_ob (object *op, object *top)	1191	merge_ob (object *op, object *top)
1268	{	1192	{
1269	if (!op->nrof)	1193	if (!op->nrof)
1270	return 0;	1194	return 0;
1271		1195
1272	if (top == NULL)	1196	if (!top)
1273	for (top = op; top != NULL && top->above != NULL; top = top->above);	1197	for (top = op; top && top->above; top = top->above)
		1198	;
1274		1199
1275	for (; top != NULL; top = top->below)	1200	for (; top; top = top->below)
1276	{	1201	if (object::can_merge (op, top))
1277	if (top == op)
1278	continue;
1279	if (CAN_MERGE (op, top))
1280	{	1202	{
1281	top->nrof += op->nrof;	1203	top->nrof += op->nrof;
1282		1204
1283	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/	1205	if (object *pl = top->visible_to ())
1284	op->weight = 0; /* Don't want any adjustements now */	1206	esrv_update_item (UPD_NROF, pl, top);
1285	remove_ob (op);	1207
1286	free_object (op);	1208	op->weight = 0; // cancel the addition above
		1209	op->carrying = 0; // must be 0 already
		1210
		1211	op->destroy ();
		1212
1287	return top;	1213	return top;
1288	}	1214	}
1289	}
1290		1215
1291	return 0;	1216	return 0;
1292	}	1217	}
1293		1218
		1219	void
		1220	object::expand_tail ()
		1221	{
		1222	if (more)
		1223	return;
		1224
		1225	object *prev = this;
		1226
		1227	for (archetype *at = (archetype *)arch->more; at; at = (archetype *)at->more)
		1228	{
		1229	object *op = arch_to_object (at);
		1230
		1231	op->name = name;
		1232	op->name_pl = name_pl;
		1233	op->title = title;
		1234
		1235	op->head = this;
		1236	prev->more = op;
		1237
		1238	prev = op;
		1239	}
		1240	}
		1241
1294	/*	1242	/*
1295	* same as insert_ob_in_map except it handle separate coordinates and do a clean	1243	* same as insert_ob_in_map except it handles separate coordinates and does a clean
1296	* job preparing multi-part monsters	1244	* job preparing multi-part monsters.
1297	*/	1245	*/
1298	object *	1246	object *
1299	insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)	1247	insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)
1300	{	1248	{
1301	object *tmp;	1249	op->remove ();
1302		1250
1303	if (op->head)
1304	op = op->head;
1305
1306	for (tmp = op; tmp; tmp = tmp->more)	1251	for (object *tmp = op->head_ (); tmp; tmp = tmp->more)
1307	{	1252	{
1308	tmp->x = x + tmp->arch->clone.x;	1253	tmp->x = x + tmp->arch->x;
1309	tmp->y = y + tmp->arch->clone.y;	1254	tmp->y = y + tmp->arch->y;
1310	}	1255	}
1311		1256
1312	return insert_ob_in_map (op, m, originator, flag);	1257	return insert_ob_in_map (op, m, originator, flag);
1313	}	1258	}
1314		1259
…		…
1330	* Return value:	1275	* Return value:
1331	* new object if 'op' was merged with other object	1276	* new object if 'op' was merged with other object
1332	* NULL if 'op' was destroyed	1277	* NULL if 'op' was destroyed
1333	* just 'op' otherwise	1278	* just 'op' otherwise
1334	*/	1279	*/
1335
1336	object *	1280	object *
1337	insert_ob_in_map (object *op, maptile *m, object *originator, int flag)	1281	insert_ob_in_map (object *op, maptile *m, object *originator, int flag)
1338	{	1282	{
1339	object *tmp, *top, *floor = NULL;	1283	op->remove ();
1340	sint16 x, y;
1341		1284
1342	if (QUERY_FLAG (op, FLAG_FREED))	1285	if (m == &freed_map)//D TODO: remove soon
1343	{	1286	{//D
1344	LOG (llevError, "Trying to insert freed object!\n");	1287	LOG (llevError | logBacktrace, "tries to insret object on freed objects map: %s", op->debug_desc ());//D
1345	return NULL;
1346	}	1288	}//D
1347
1348	if (m == NULL)
1349	{
1350	dump_object (op);
1351	LOG (llevError, "Trying to insert in null-map!\n%s\n", errmsg);
1352	return op;
1353	}
1354
1355	if (out_of_map (m, op->x, op->y))
1356	{
1357	dump_object (op);
1358	LOG (llevError, "Trying to insert object outside the map.\n%s\n", errmsg);
1359	#ifdef MANY_CORES
1360	/* Better to catch this here, as otherwise the next use of this object
1361	* is likely to cause a crash. Better to find out where it is getting
1362	* improperly inserted.
1363	*/
1364	abort ();
1365	#endif
1366	return op;
1367	}
1368
1369	if (!QUERY_FLAG (op, FLAG_REMOVED))
1370	{
1371	dump_object (op);
1372	LOG (llevError, "Trying to insert (map) inserted object.\n%s\n", errmsg);
1373	return op;
1374	}
1375
1376	if (op->more != NULL)
1377	{
1378	/* The part may be on a different map. */
1379
1380	object *more = op->more;
1381
1382	/* We really need the caller to normalize coordinates - if
1383	* we set the map, that doesn't work if the location is within
1384	* a map and this is straddling an edge. So only if coordinate
1385	* is clear wrong do we normalize it.
1386	*/
1387	if (OUT_OF_REAL_MAP (more->map, more->x, more->y))
1388	more->map = get_map_from_coord (m, &more->x, &more->y);
1389	else if (!more->map)
1390	{
1391	/* For backwards compatibility - when not dealing with tiled maps,
1392	* more->map should always point to the parent.
1393	*/
1394	more->map = m;
1395	}
1396
1397	if (insert_ob_in_map (more, more->map, originator, flag) == NULL)
1398	{
1399	if (!op->head)
1400	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");
1401
1402	return NULL;
1403	}
1404	}
1405
1406	CLEAR_FLAG (op, FLAG_REMOVED);
1407		1289
1408	/* Ideally, the caller figures this out. However, it complicates a lot	1290	/* Ideally, the caller figures this out. However, it complicates a lot
1409	* of areas of callers (eg, anything that uses find_free_spot would now	1291	* of areas of callers (eg, anything that uses find_free_spot would now
1410	* need extra work	1292	* need extra work
1411	*/	1293	*/
1412	op->map = get_map_from_coord (m, &op->x, &op->y);	1294	maptile *newmap = m;
1413	x = op->x;	1295	if (!xy_normalise (newmap, op->x, op->y))
1414	y = op->y;	1296	{
		1297	op->head_ ()->destroy ();// remove head_ once all tail object destroyers found
		1298	return 0;
		1299	}
		1300
		1301	if (object *more = op->more)
		1302	if (!insert_ob_in_map (more, m, originator, flag))
		1303	return 0;
		1304
		1305	op->flag [FLAG_REMOVED] = false;
		1306	op->env = 0;
		1307	op->map = newmap;
		1308
		1309	mapspace &ms = op->ms ();
1415		1310
1416	/* this has to be done after we translate the coordinates.	1311	/* this has to be done after we translate the coordinates.
1417	*/	1312	*/
1418	if (op->nrof && !(flag & INS_NO_MERGE))	1313	if (op->nrof && !(flag & INS_NO_MERGE))
1419	for (tmp = GET_MAP_OB (op->map, x, y); tmp != NULL; tmp = tmp->above)	1314	for (object *tmp = ms.bot; tmp; tmp = tmp->above)
1420	if (CAN_MERGE (op, tmp))	1315	if (object::can_merge (op, tmp))
1421	{	1316	{
		1317	// TODO: we actually want to update tmp, not op,
		1318	// but some caller surely breaks when we return tmp
		1319	// from here :/
1422	op->nrof += tmp->nrof;	1320	op->nrof += tmp->nrof;
1423	remove_ob (tmp);	1321	tmp->destroy ();
1424	free_object (tmp);
1425	}	1322	}
1426		1323
1427	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */	1324	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */
1428	CLEAR_FLAG (op, FLAG_INV_LOCKED);	1325	CLEAR_FLAG (op, FLAG_INV_LOCKED);
1429		1326
…		…
1436	{	1333	{
1437	LOG (llevError, "insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");	1334	LOG (llevError, "insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");
1438	abort ();	1335	abort ();
1439	}	1336	}
1440		1337
		1338	if (!originator->is_on_map ())
		1339	{
		1340	LOG (llevError, "insert_ob_in_map(%s) called with INS_BELOW_ORIGINATOR when originator '%s' not on map",
		1341	op->debug_desc (), originator->debug_desc ());
		1342	abort ();
		1343	}
		1344
1441	op->above = originator;	1345	op->above = originator;
1442	op->below = originator->below;	1346	op->below = originator->below;
1443
1444	if (op->below)
1445	op->below->above = op;
1446	else
1447	SET_MAP_OB (op->map, op->x, op->y, op);
1448
1449	/* since *below* originator, no need to update top */
1450	originator->below = op;	1347	originator->below = op;
		1348
		1349	*(op->below ? &op->below->above : &ms.bot) = op;
1451	}	1350	}
1452	else	1351	else
1453	{	1352	{
		1353	object *floor = 0;
		1354	object *top = ms.top;
		1355
1454	/* If there are other objects, then */	1356	/* If there are other objects, then */
1455	if ((!(flag & INS_MAP_LOAD)) && ((top = GET_MAP_OB (op->map, op->x, op->y)) != NULL))	1357	if (top)
1456	{	1358	{
1457	object *last = NULL;
1458
1459	/*	1359	/*
1460	* If there are multiple objects on this space, we do some trickier handling.	1360	* If there are multiple objects on this space, we do some trickier handling.
1461	* We've already dealt with merging if appropriate.	1361	* We've already dealt with merging if appropriate.
1462	* Generally, we want to put the new object on top. But if	1362	* Generally, we want to put the new object on top. But if
1463	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last	1363	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last
…		…
1466	* once we get to them. This reduces the need to traverse over all of	1366	* once we get to them. This reduces the need to traverse over all of
1467	* them when adding another one - this saves quite a bit of cpu time	1367	* them when adding another one - this saves quite a bit of cpu time
1468	* when lots of spells are cast in one area. Currently, it is presumed	1368	* when lots of spells are cast in one area. Currently, it is presumed
1469	* that flying non pickable objects are spell objects.	1369	* that flying non pickable objects are spell objects.
1470	*/	1370	*/
1471		1371	for (object *tmp = ms.bot; tmp; tmp = tmp->above)
1472	while (top != NULL)
1473	{	1372	{
1474	if (QUERY_FLAG (top, FLAG_IS_FLOOR) || QUERY_FLAG (top, FLAG_OVERLAY_FLOOR))	1373	if (QUERY_FLAG (tmp, FLAG_IS_FLOOR) || QUERY_FLAG (tmp, FLAG_OVERLAY_FLOOR))
1475	floor = top;	1374	floor = tmp;
1476		1375
1477	if (QUERY_FLAG (top, FLAG_NO_PICK) && (top->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (top, FLAG_IS_FLOOR))	1376	if (QUERY_FLAG (tmp, FLAG_NO_PICK) && (tmp->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (tmp, FLAG_IS_FLOOR))
1478	{	1377	{
1479	/* We insert above top, so we want this object below this */	1378	/* We insert above top, so we want this object below this */
1480	top = top->below;	1379	top = tmp->below;
1481	break;	1380	break;
1482	}	1381	}
1483		1382
1484	last = top;
1485	top = top->above;	1383	top = tmp;
1486	}	1384	}
1487
1488	/* Don't want top to be NULL, so set it to the last valid object */
1489	top = last;
1490		1385
1491	/* We let update_position deal with figuring out what the space	1386	/* We let update_position deal with figuring out what the space
1492	* looks like instead of lots of conditions here.	1387	* looks like instead of lots of conditions here.
1493	* makes things faster, and effectively the same result.	1388	* makes things faster, and effectively the same result.
1494	*/	1389	*/
1495		1390
1496	/* Have object 'fall below' other objects that block view.	1391	/* Have object 'fall below' other objects that block view.
1497	* Unless those objects are exits, type 66	1392	* Unless those objects are exits.
1498	* If INS_ON_TOP is used, don't do this processing	1393	* If INS_ON_TOP is used, don't do this processing
1499	* Need to find the object that in fact blocks view, otherwise	1394	* Need to find the object that in fact blocks view, otherwise
1500	* stacking is a bit odd.	1395	* stacking is a bit odd.
1501	*/	1396	*/
1502	if (!(flag & INS_ON_TOP) &&	1397	if (!(flag & INS_ON_TOP)
1503	(get_map_flags (op->map, NULL, op->x, op->y, NULL, NULL) & P_BLOCKSVIEW) && (op->face && !op->face->visibility))	1398	&& ms.flags () & P_BLOCKSVIEW
		1399	&& (op->face && !faces [op->face].visibility))
1504	{	1400	{
		1401	object *last;
		1402
1505	for (last = top; last != floor; last = last->below)	1403	for (last = top; last != floor; last = last->below)
1506	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))	1404	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))
1507	break;	1405	break;
		1406
1508	/* Check to see if we found the object that blocks view,	1407	/* Check to see if we found the object that blocks view,
1509	* and make sure we have a below pointer for it so that	1408	* and make sure we have a below pointer for it so that
1510	* we can get inserted below this one, which requires we	1409	* we can get inserted below this one, which requires we
1511	* set top to the object below us.	1410	* set top to the object below us.
1512	*/	1411	*/
1513	if (last && last->below && last != floor)	1412	if (last && last->below && last != floor)
1514	top = last->below;	1413	top = last->below;
1515	}	1414	}
1516	} /* If objects on this space */	1415	} /* If objects on this space */
1517		1416
1518	if (flag & INS_MAP_LOAD)
1519	top = GET_MAP_TOP (op->map, op->x, op->y);
1520
1521	if (flag & INS_ABOVE_FLOOR_ONLY)	1417	if (flag & INS_ABOVE_FLOOR_ONLY)
1522	top = floor;	1418	top = floor;
1523		1419
1524	/* Top is the object that our object (op) is going to get inserted above.	1420	// insert object above top, or bottom-most if top = 0
1525	*/
1526
1527	/* First object on this space */
1528	if (!top)	1421	if (!top)
1529	{	1422	{
1530	op->above = GET_MAP_OB (op->map, op->x, op->y);
1531
1532	if (op->above)
1533	op->above->below = op;
1534
1535	op->below = NULL;	1423	op->below = 0;
1536	SET_MAP_OB (op->map, op->x, op->y, op);	1424	op->above = ms.bot;
		1425	ms.bot = op;
		1426
		1427	*(op->above ? &op->above->below : &ms.top) = op;
1537	}	1428	}
1538	else	1429	else
1539	{ /* get inserted into the stack above top */	1430	{
1540	op->above = top->above;	1431	op->above = top->above;
1541
1542	if (op->above)
1543	op->above->below = op;	1432	top->above = op;
1544		1433
1545	op->below = top;	1434	op->below = top;
1546	top->above = op;	1435	*(op->above ? &op->above->below : &ms.top) = op;
1547	}	1436	}
		1437	}
1548		1438
1549	if (op->above == NULL)	1439	if (op->is_player ())
1550	SET_MAP_TOP (op->map, op->x, op->y, op);	1440	{
1551	} /* else not INS_BELOW_ORIGINATOR */
1552
1553	if (op->type == PLAYER)
1554	op->contr->do_los = 1;	1441	op->contr->do_los = 1;
		1442	++op->map->players;
		1443	op->map->touch ();
		1444	}
1555		1445
1556	/* If we have a floor, we know the player, if any, will be above	1446	op->map->dirty = true;
1557	* it, so save a few ticks and start from there.	1447
1558	*/	1448	if (object *pl = ms.player ())
1559	if (!(flag & INS_MAP_LOAD))	1449	//TODO: the floorbox prev/next might need updating
1560	for (tmp = floor ? floor : GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)	1450	//esrv_send_item (pl, op);
1561	if (tmp->type == PLAYER)	1451	//TODO: update floorbox to preserve ordering
1562	tmp->contr->socket.update_look = 1;	1452	if (pl->contr->ns)
		1453	pl->contr->ns->floorbox_update ();
1563		1454
1564	/* If this object glows, it may affect lighting conditions that are	1455	/* If this object glows, it may affect lighting conditions that are
1565	* visible to others on this map. But update_all_los is really	1456	* visible to others on this map. But update_all_los is really
1566	* an inefficient way to do this, as it means los for all players	1457	* an inefficient way to do this, as it means los for all players
1567	* on the map will get recalculated. The players could very well	1458	* on the map will get recalculated. The players could very well
1568	* be far away from this change and not affected in any way -	1459	* be far away from this change and not affected in any way -
1569	* this should get redone to only look for players within range,	1460	* this should get redone to only look for players within range,
1570	* or just updating the P_NEED_UPDATE for spaces within this area	1461	* or just updating the P_UPTODATE for spaces within this area
1571	* of effect may be sufficient.	1462	* of effect may be sufficient.
1572	*/	1463	*/
1573	if (MAP_DARKNESS (op->map) && (op->glow_radius != 0))	1464	if (op->affects_los ())
		1465	{
		1466	op->ms ().invalidate ();
1574	update_all_los (op->map, op->x, op->y);	1467	update_all_los (op->map, op->x, op->y);
		1468	}
1575		1469
1576	/* updates flags (blocked, alive, no magic, etc) for this map space */	1470	/* updates flags (blocked, alive, no magic, etc) for this map space */
1577	update_object (op, UP_OBJ_INSERT);	1471	update_object (op, UP_OBJ_INSERT);
1578		1472
		1473	INVOKE_OBJECT (INSERT, op);
		1474
1579	/* Don't know if moving this to the end will break anything. However,	1475	/* Don't know if moving this to the end will break anything. However,
1580	* we want to have update_look set above before calling this.	1476	* we want to have floorbox_update called before calling this.
1581	*	1477	*
1582	* check_move_on() must be after this because code called from	1478	* check_move_on() must be after this because code called from
1583	* check_move_on() depends on correct map flags (so functions like	1479	* check_move_on() depends on correct map flags (so functions like
1584	* blocked() and wall() work properly), and these flags are updated by	1480	* blocked() and wall() work properly), and these flags are updated by
1585	* update_object().	1481	* update_object().
1586	*/	1482	*/
1587		1483
1588	/* if this is not the head or flag has been passed, don't check walk on status */	1484	/* if this is not the head or flag has been passed, don't check walk on status */
1589	if (!(flag & INS_NO_WALK_ON) && !op->head)	1485	if (!(flag & INS_NO_WALK_ON) && op->is_head ())
1590	{	1486	{
1591	if (check_move_on (op, originator))	1487	if (check_move_on (op, originator))
1592	return NULL;	1488	return 0;
1593		1489
1594	/* If we are a multi part object, lets work our way through the check	1490	/* If we are a multi part object, lets work our way through the check
1595	* walk on's.	1491	* walk on's.
1596	*/	1492	*/
1597	for (tmp = op->more; tmp != NULL; tmp = tmp->more)	1493	for (object *tmp = op->more; tmp; tmp = tmp->more)
1598	if (check_move_on (tmp, originator))	1494	if (check_move_on (tmp, originator))
1599	return NULL;	1495	return 0;
1600	}	1496	}
1601		1497
1602	return op;	1498	return op;
1603	}	1499	}
1604		1500
1605	/* this function inserts an object in the map, but if it	1501	/* this function inserts an object in the map, but if it
1606	* finds an object of its own type, it'll remove that one first.	1502	* finds an object of its own type, it'll remove that one first.
1607	* op is the object to insert it under: supplies x and the map.	1503	* op is the object to insert it under: supplies x and the map.
1608	*/	1504	*/
1609	void	1505	void
1610	replace_insert_ob_in_map (const char *arch_string, object *op)	1506	replace_insert_ob_in_map (shstr_tmp archname, object *op)
1611	{	1507	{
1612	object *
1613	tmp;
1614	object *
1615	tmp1;
1616
1617	/* first search for itself and remove any old instances */	1508	/* first search for itself and remove any old instances */
1618		1509
1619	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)	1510	for (object *tmp = op->ms ().bot; tmp; tmp = tmp->above)
1620	{
1621	if (!strcmp (tmp->arch->name, arch_string)) /* same archetype */	1511	if (tmp->arch->archname == archname) /* same archetype */
1622	{	1512	tmp->destroy ();
1623	remove_ob (tmp);
1624	free_object (tmp);
1625	}
1626	}
1627		1513
1628	tmp1 = arch_to_object (archetype::find (arch_string));	1514	object *tmp = arch_to_object (archetype::find (archname));
1629		1515
1630	tmp1->x = op->x;	1516	tmp->x = op->x;
1631	tmp1->y = op->y;	1517	tmp->y = op->y;
		1518
1632	insert_ob_in_map (tmp1, op->map, op, 0);	1519	insert_ob_in_map (tmp, op->map, op, 0);
1633	}	1520	}
1634
1635	/*
1636	* get_split_ob(ob,nr) splits up ob into two parts. The part which
1637	* is returned contains nr objects, and the remaining parts contains
1638	* the rest (or is removed and freed if that number is 0).
1639	* On failure, NULL is returned, and the reason put into the
1640	* global static errmsg array.
1641	*/
1642		1521
1643	object *	1522	object *
1644	get_split_ob (object *orig_ob, uint32 nr)	1523	object::insert_at (object *where, object *originator, int flags)
1645	{	1524	{
1646	object *	1525	if (where->env)
1647	newob;	1526	return where->env->insert (this);
1648	int	1527	else
1649	is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);	1528	return where->map->insert (this, where->x, where->y, originator, flags);
1650
1651	if (orig_ob->nrof < nr)
1652	{
1653	sprintf (errmsg, "There are only %d %ss.", orig_ob->nrof ? orig_ob->nrof : 1, &orig_ob->name);
1654	return NULL;
1655	}
1656
1657	newob = object_create_clone (orig_ob);
1658
1659	if ((orig_ob->nrof -= nr) < 1)
1660	{
1661	if (!is_removed)
1662	remove_ob (orig_ob);
1663	free_object2 (orig_ob, 1);
1664	}
1665	else if (!is_removed)
1666	{
1667	if (orig_ob->env != NULL)
1668	sub_weight (orig_ob->env, orig_ob->weight * nr);
1669	if (orig_ob->env == NULL && orig_ob->map->in_memory != MAP_IN_MEMORY)
1670	{
1671	strcpy (errmsg, "Tried to split object whose map is not in memory.");
1672	LOG (llevDebug, "Error, Tried to split object whose map is not in memory.\n");
1673	return NULL;
1674	}
1675	}
1676
1677	newob->nrof = nr;
1678
1679	return newob;
1680	}	1529	}
1681		1530
1682	/*	1531	/*
1683	* decrease_ob_nr(object, number) decreases a specified number from	1532	* decrease(object, number) decreases a specified number from
1684	* the amount of an object. If the amount reaches 0, the object	1533	* the amount of an object. If the amount reaches 0, the object
1685	* is subsequently removed and freed.	1534	* is subsequently removed and freed.
1686	*	1535	*
1687	* Return value: 'op' if something is left, NULL if the amount reached 0	1536	* Return value: 'op' if something is left, NULL if the amount reached 0
1688	*/	1537	*/
		1538	bool
		1539	object::decrease (sint32 nr)
		1540	{
		1541	if (!nr)
		1542	return true;
1689		1543
		1544	nr = min (nr, nrof);
		1545
		1546	if (nrof > nr)
		1547	{
		1548	nrof -= nr;
		1549	adjust_weight (env, -weight * max (1, nr)); // carrying == 0
		1550
		1551	if (object *pl = visible_to ())
		1552	esrv_update_item (UPD_NROF, pl, this);
		1553
		1554	return true;
		1555	}
		1556	else
		1557	{
		1558	destroy ();
		1559	return false;
		1560	}
		1561	}
		1562
		1563	/*
		1564	* split(ob,nr) splits up ob into two parts. The part which
		1565	* is returned contains nr objects, and the remaining parts contains
		1566	* the rest (or is removed and returned if that number is 0).
		1567	* On failure, NULL is returned.
		1568	*/
1690	object *	1569	object *
1691	decrease_ob_nr (object *op, uint32 i)	1570	object::split (sint32 nr)
1692	{	1571	{
1693	object *tmp;	1572	int have = number_of ();
1694	player *pl;
1695		1573
1696	if (i == 0) /* objects with op->nrof require this check */	1574	if (have < nr)
1697	return op;	1575	return 0;
1698		1576	else if (have == nr)
1699	if (i > op->nrof)
1700	i = op->nrof;
1701
1702	if (QUERY_FLAG (op, FLAG_REMOVED))
1703	op->nrof -= i;
1704	else if (op->env != NULL)
1705	{	1577	{
1706	/* is this object in the players inventory, or sub container
1707	* therein?
1708	*/
1709	tmp = is_player_inv (op->env);
1710	/* nope. Is this a container the player has opened?
1711	* If so, set tmp to that player.
1712	* IMO, searching through all the players will mostly
1713	* likely be quicker than following op->env to the map,
1714	* and then searching the map for a player.
1715	*/
1716	if (!tmp)
1717	{
1718	for (pl = first_player; pl; pl = pl->next)
1719	if (pl->ob->container == op->env)
1720	break;
1721	if (pl)
1722	tmp = pl->ob;
1723	else
1724	tmp = NULL;
1725	}
1726
1727	if (i < op->nrof)
1728	{
1729	sub_weight (op->env, op->weight * i);
1730	op->nrof -= i;
1731	if (tmp)
1732	{
1733	esrv_send_item (tmp, op);
1734	}
1735	}
1736	else
1737	{
1738	remove_ob (op);	1578	remove ();
1739	op->nrof = 0;	1579	return this;
1740	if (tmp)
1741	{
1742	esrv_del_item (tmp->contr, op->count);
1743	}
1744	}
1745	}	1580	}
1746	else	1581	else
1747	{	1582	{
1748	object *above = op->above;	1583	decrease (nr);
1749		1584
1750	if (i < op->nrof)	1585	object *op = deep_clone ();
1751	op->nrof -= i;	1586	op->nrof = nr;
1752	else
1753	{
1754	remove_ob (op);
1755	op->nrof = 0;
1756	}
1757
1758	/* Since we just removed op, op->above is null */
1759	for (tmp = above; tmp != NULL; tmp = tmp->above)
1760	if (tmp->type == PLAYER)
1761	{
1762	if (op->nrof)
1763	esrv_send_item (tmp, op);
1764	else
1765	esrv_del_item (tmp->contr, op->count);
1766	}
1767	}
1768
1769	if (op->nrof)
1770	return op;	1587	return op;
1771	else
1772	{	1588	}
1773	free_object (op);	1589	}
		1590
		1591	object *
		1592	insert_ob_in_ob (object *op, object *where)
		1593	{
		1594	if (!where)
		1595	{
		1596	char *dump = dump_object (op);
		1597	LOG (llevError, "Trying to put object in NULL.\n%s\n", dump);
		1598	free (dump);
1774	return NULL;	1599	return op;
1775	}
1776	}
1777
1778	/*
1779	* add_weight(object, weight) adds the specified weight to an object,
1780	* and also updates how much the environment(s) is/are carrying.
1781	*/
1782
1783	void
1784	add_weight (object *op, signed long weight)
1785	{
1786	while (op != NULL)
1787	{	1600	}
1788	if (op->type == CONTAINER)
1789	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1790		1601
1791	op->carrying += weight;	1602	if (where->head_ () != where)
1792	op = op->env;
1793	}	1603	{
1794	}	1604	LOG (llevError | logBacktrace, "Warning: Tried to insert object into wrong part of multipart object.\n");
		1605	where = where->head;
		1606	}
1795		1607
		1608	return where->insert (op);
		1609	}
		1610
1796	/*	1611	/*
1797	* insert_ob_in_ob(op,environment):	1612	* env->insert (op)
1798	* This function inserts the object op in the linked list	1613	* This function inserts the object op in the linked list
1799	* inside the object environment.	1614	* inside the object environment.
1800	*	1615	*
1801	* Eneq(@csd.uu.se): Altered insert_ob_in_ob to make things picked up enter
1802	* the inventory at the last position or next to other objects of the same
1803	* type.
1804	* Frank: Now sorted by type, archetype and magic!
1805	*
1806	* The function returns now pointer to inserted item, and return value can	1616	* The function returns now pointer to inserted item, and return value can
1807	* be != op, if items are merged. -Tero	1617	* be != op, if items are merged. -Tero
1808	*/	1618	*/
1809
1810	object *	1619	object *
1811	insert_ob_in_ob (object *op, object *where)	1620	object::insert (object *op)
1812	{	1621	{
1813	object *
1814	tmp, *
1815	otmp;
1816
1817	if (!QUERY_FLAG (op, FLAG_REMOVED))
1818	{
1819	dump_object (op);
1820	LOG (llevError, "Trying to insert (ob) inserted object.\n%s\n", errmsg);
1821	return op;
1822	}
1823
1824	if (where == NULL)
1825	{
1826	dump_object (op);
1827	LOG (llevError, "Trying to put object in NULL.\n%s\n", errmsg);
1828	return op;
1829	}
1830
1831	if (where->head)
1832	{
1833	LOG (llevDebug, "Warning: Tried to insert object wrong part of multipart object.\n");
1834	where = where->head;
1835	}
1836
1837	if (op->more)	1622	if (op->more)
1838	{	1623	{
1839	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);	1624	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);
1840	return op;	1625	return op;
1841	}	1626	}
1842		1627
1843	CLEAR_FLAG (op, FLAG_OBJ_ORIGINAL);	1628	op->remove ();
1844	CLEAR_FLAG (op, FLAG_REMOVED);	1629
		1630	op->flag [FLAG_OBJ_ORIGINAL] = 0;
		1631
1845	if (op->nrof)	1632	if (op->nrof)
1846	{
1847	for (tmp = where->inv; tmp != NULL; tmp = tmp->below)	1633	for (object *tmp = inv; tmp; tmp = tmp->below)
1848	if (CAN_MERGE (tmp, op))	1634	if (object::can_merge (tmp, op))
1849	{	1635	{
1850	/* return the original object and remove inserted object	1636	/* return the original object and remove inserted object
1851	(client needs the original object) */	1637	(client needs the original object) */
1852	tmp->nrof += op->nrof;	1638	tmp->nrof += op->nrof;
1853	/* Weight handling gets pretty funky. Since we are adding to	1639
1854	* tmp->nrof, we need to increase the weight.	1640	if (object *pl = tmp->visible_to ())
1855	*/	1641	esrv_update_item (UPD_NROF, pl, tmp);
1856	add_weight (where, op->weight * op->nrof);	1642
1857	SET_FLAG (op, FLAG_REMOVED);	1643	adjust_weight (this, op->total_weight ());
1858	free_object (op); /* free the inserted object */	1644
		1645	op->destroy ();
1859	op = tmp;	1646	op = tmp;
1860	remove_ob (op); /* and fix old object's links */	1647	goto inserted;
1861	CLEAR_FLAG (op, FLAG_REMOVED);
1862	break;
1863	}	1648	}
1864		1649
1865	/* I assume combined objects have no inventory	1650	op->owner = 0; // it's his/hers now. period.
1866	* We add the weight - this object could have just been removed
1867	* (if it was possible to merge). calling remove_ob will subtract
1868	* the weight, so we need to add it in again, since we actually do
1869	* the linking below
1870	*/
1871	add_weight (where, op->weight * op->nrof);
1872	}
1873	else
1874	add_weight (where, (op->weight + op->carrying));
1875
1876	otmp = is_player_inv (where);
1877	if (otmp && otmp->contr != NULL)
1878	{
1879	if (!QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1880	fix_player (otmp);
1881	}
1882
1883	op->map = NULL;	1651	op->map = 0;
1884	op->env = where;	1652	op->x = 0;
		1653	op->y = 0;
		1654
1885	op->above = NULL;	1655	op->above = 0;
1886	op->below = NULL;	1656	op->below = inv;
1887	op->x = 0, op->y = 0;	1657	op->env = this;
1888		1658
		1659	if (inv)
		1660	inv->above = op;
		1661
		1662	inv = op;
		1663
		1664	op->flag [FLAG_REMOVED] = 0;
		1665
		1666	if (object *pl = op->visible_to ())
		1667	esrv_send_item (pl, op);
		1668
		1669	adjust_weight (this, op->total_weight ());
		1670
		1671	inserted:
1889	/* reset the light list and los of the players on the map */	1672	/* reset the light list and los of the players on the map */
1890	if ((op->glow_radius != 0) && where->map)	1673	if (op->glow_radius && is_on_map ())
1891	{
1892	#ifdef DEBUG_LIGHTS
1893	LOG (llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n", op->name);
1894	#endif /* DEBUG_LIGHTS */
1895	if (MAP_DARKNESS (where->map))
1896	update_all_los (where->map, where->x, where->y);
1897	}	1674	{
1898		1675	update_stats ();
1899	/* Client has no idea of ordering so lets not bother ordering it here.	1676	update_all_los (map, x, y);
1900	* It sure simplifies this function...
1901	*/
1902	if (where->inv == NULL)
1903	where->inv = op;
1904	else
1905	{	1677	}
1906	op->below = where->inv;	1678	else if (is_player () && !flag [FLAG_NO_FIX_PLAYER])
1907	op->below->above = op;	1679	// if this is a player's inventory, update stats
1908	where->inv = op;	1680	update_stats ();
1909	}	1681
		1682	INVOKE_OBJECT (INSERT, this);
		1683
1910	return op;	1684	return op;
1911	}	1685	}
1912		1686
1913	/*	1687	/*
1914	* Checks if any objects has a move_type that matches objects	1688	* Checks if any objects has a move_type that matches objects
…		…
1928	*	1702	*
1929	* MSW 2001-07-08: Check all objects on space, not just those below	1703	* MSW 2001-07-08: Check all objects on space, not just those below
1930	* object being inserted. insert_ob_in_map may not put new objects	1704	* object being inserted. insert_ob_in_map may not put new objects
1931	* on top.	1705	* on top.
1932	*/	1706	*/
1933
1934	int	1707	int
1935	check_move_on (object *op, object *originator)	1708	check_move_on (object *op, object *originator)
1936	{	1709	{
		1710	if (QUERY_FLAG (op, FLAG_NO_APPLY))
		1711	return 0;
		1712
1937	object *tmp;	1713	object *tmp;
1938	maptile *m = op->map;	1714	maptile *m = op->map;
1939	int x = op->x, y = op->y;	1715	int x = op->x, y = op->y;
1940		1716
1941	MoveType move_on, move_slow, move_block;	1717	mapspace &ms = m->at (x, y);
1942		1718
1943	if (QUERY_FLAG (op, FLAG_NO_APPLY))	1719	ms.update ();
1944	return 0;
1945		1720
1946	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);	1721	MoveType move_on = ms.move_on;
1947	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);	1722	MoveType move_slow = ms.move_slow;
1948	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);	1723	MoveType move_block = ms.move_block;
1949		1724
1950	/* if nothing on this space will slow op down or be applied,	1725	/* if nothing on this space will slow op down or be applied,
1951	* no need to do checking below. have to make sure move_type	1726	* no need to do checking below. have to make sure move_type
1952	* is set, as lots of objects don't have it set - we treat that	1727	* is set, as lots of objects don't have it set - we treat that
1953	* as walking.	1728	* as walking.
…		…
1964	return 0;	1739	return 0;
1965		1740
1966	/* The objects have to be checked from top to bottom.	1741	/* The objects have to be checked from top to bottom.
1967	* Hence, we first go to the top:	1742	* Hence, we first go to the top:
1968	*/	1743	*/
1969		1744	for (object *next, *tmp = ms.top; tmp; tmp = next)
1970	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL && tmp->above != NULL; tmp = tmp->above)
1971	{
1972	/* Trim the search when we find the first other spell effect
1973	* this helps performance so that if a space has 50 spell objects,
1974	* we don't need to check all of them.
1975	*/
1976	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG (tmp, FLAG_NO_PICK))
1977	break;
1978	}	1745	{
		1746	next = tmp->below;
1979		1747
1980	for (; tmp; tmp = tmp->below)
1981	{
1982	if (tmp == op)	1748	if (tmp == op)
1983	continue; /* Can't apply yourself */	1749	continue; /* Can't apply yourself */
1984		1750
1985	/* Check to see if one of the movement types should be slowed down.	1751	/* Check to see if one of the movement types should be slowed down.
1986	* Second check makes sure that the movement types not being slowed	1752	* Second check makes sure that the movement types not being slowed
…		…
1991	if (!QUERY_FLAG (op, FLAG_WIZPASS))	1757	if (!QUERY_FLAG (op, FLAG_WIZPASS))
1992	{	1758	{
1993	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||	1759	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||
1994	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))	1760	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))
1995	{	1761	{
1996
1997	float
1998	diff = tmp->move_slow_penalty * FABS (op->speed);	1762	float diff = tmp->move_slow_penalty * fabs (op->speed);
1999		1763
2000	if (op->type == PLAYER)	1764	if (op->is_player ())
2001	if ((QUERY_FLAG (tmp, FLAG_IS_HILLY) && find_skill_by_number (op, SK_CLIMBING)) ||	1765	if ((tmp->flag [FLAG_IS_HILLY ] && find_skill_by_number (op, SK_CLIMBING)) ||
2002	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))	1766	(tmp->flag [FLAG_IS_WOODED] && find_skill_by_number (op, SK_WOODSMAN)))
2003	diff /= 4.0;	1767	diff /= 4.0;
2004		1768
2005	op->speed_left -= diff;	1769	op->speed_left -= diff;
2006	}	1770	}
2007	}	1771	}
…		…
2030	/*	1794	/*
2031	* present_arch(arch, map, x, y) searches for any objects with	1795	* present_arch(arch, map, x, y) searches for any objects with
2032	* a matching archetype at the given map and coordinates.	1796	* a matching archetype at the given map and coordinates.
2033	* The first matching object is returned, or NULL if none.	1797	* The first matching object is returned, or NULL if none.
2034	*/	1798	*/
2035
2036	object *	1799	object *
2037	present_arch (const archetype *at, maptile *m, int x, int y)	1800	present_arch (const archetype *at, maptile *m, int x, int y)
2038	{	1801	{
2039	object *
2040	tmp;
2041
2042	if (m == NULL || out_of_map (m, x, y))	1802	if (!m || out_of_map (m, x, y))
2043	{	1803	{
2044	LOG (llevError, "Present_arch called outside map.\n");	1804	LOG (llevError, "Present_arch called outside map.\n");
2045	return NULL;	1805	return NULL;
2046	}	1806	}
2047	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)	1807
2048	if (tmp->arch == at)	1808	for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)
		1809	if (tmp->arch->archname == at->archname)
2049	return tmp;	1810	return tmp;
		1811
2050	return NULL;	1812	return NULL;
2051	}	1813	}
2052		1814
2053	/*	1815	/*
2054	* present(type, map, x, y) searches for any objects with	1816	* present(type, map, x, y) searches for any objects with
2055	* a matching type variable at the given map and coordinates.	1817	* a matching type variable at the given map and coordinates.
2056	* The first matching object is returned, or NULL if none.	1818	* The first matching object is returned, or NULL if none.
2057	*/	1819	*/
2058
2059	object *	1820	object *
2060	present (unsigned char type, maptile *m, int x, int y)	1821	present (unsigned char type, maptile *m, int x, int y)
2061	{	1822	{
2062	object *
2063	tmp;
2064
2065	if (out_of_map (m, x, y))	1823	if (out_of_map (m, x, y))
2066	{	1824	{
2067	LOG (llevError, "Present called outside map.\n");	1825	LOG (llevError, "Present called outside map.\n");
2068	return NULL;	1826	return NULL;
2069	}	1827	}
2070	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)	1828
		1829	for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)
2071	if (tmp->type == type)	1830	if (tmp->type == type)
2072	return tmp;	1831	return tmp;
		1832
2073	return NULL;	1833	return NULL;
2074	}	1834	}
2075		1835
2076	/*	1836	/*
2077	* present_in_ob(type, object) searches for any objects with	1837	* present_in_ob(type, object) searches for any objects with
2078	* a matching type variable in the inventory of the given object.	1838	* a matching type variable in the inventory of the given object.
2079	* The first matching object is returned, or NULL if none.	1839	* The first matching object is returned, or NULL if none.
2080	*/	1840	*/
2081
2082	object *	1841	object *
2083	present_in_ob (unsigned char type, const object *op)	1842	present_in_ob (unsigned char type, const object *op)
2084	{	1843	{
2085	object *
2086	tmp;
2087
2088	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1844	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
2089	if (tmp->type == type)	1845	if (tmp->type == type)
2090	return tmp;	1846	return tmp;
		1847
2091	return NULL;	1848	return NULL;
2092	}	1849	}
2093		1850
2094	/*	1851	/*
2095	* present_in_ob (type, str, object) searches for any objects with	1852	* present_in_ob (type, str, object) searches for any objects with
…		…
2103	* str is the string to match against. Note that we match against	1860	* str is the string to match against. Note that we match against
2104	* the object name, not the archetype name. this is so that the	1861	* the object name, not the archetype name. this is so that the
2105	* spell code can use one object type (force), but change it's name	1862	* spell code can use one object type (force), but change it's name
2106	* to be unique.	1863	* to be unique.
2107	*/	1864	*/
2108
2109	object *	1865	object *
2110	present_in_ob_by_name (int type, const char *str, const object *op)	1866	present_in_ob_by_name (int type, const char *str, const object *op)
2111	{	1867	{
2112	object *
2113	tmp;
2114
2115	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1868	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2116	{
2117	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))	1869	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))
2118	return tmp;	1870	return tmp;
2119	}	1871
2120	return NULL;	1872	return 0;
2121	}	1873	}
2122		1874
2123	/*	1875	/*
2124	* present_arch_in_ob(archetype, object) searches for any objects with	1876	* present_arch_in_ob(archetype, object) searches for any objects with
2125	* a matching archetype in the inventory of the given object.	1877	* a matching archetype in the inventory of the given object.
2126	* The first matching object is returned, or NULL if none.	1878	* The first matching object is returned, or NULL if none.
2127	*/	1879	*/
2128
2129	object *	1880	object *
2130	present_arch_in_ob (const archetype *at, const object *op)	1881	present_arch_in_ob (const archetype *at, const object *op)
2131	{	1882	{
2132	object *
2133	tmp;
2134
2135	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1883	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2136	if (tmp->arch == at)	1884	if (tmp->arch->archname == at->archname)
2137	return tmp;	1885	return tmp;
		1886
2138	return NULL;	1887	return NULL;
2139	}	1888	}
2140		1889
2141	/*	1890	/*
2142	* activate recursively a flag on an object inventory	1891	* activate recursively a flag on an object inventory
2143	*/	1892	*/
2144	void	1893	void
2145	flag_inv (object *op, int flag)	1894	flag_inv (object *op, int flag)
2146	{	1895	{
2147	object *
2148	tmp;
2149
2150	if (op->inv)
2151	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1896	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2152	{	1897	{
2153	SET_FLAG (tmp, flag);	1898	SET_FLAG (tmp, flag);
2154	flag_inv (tmp, flag);	1899	flag_inv (tmp, flag);
2155	}	1900	}
2156	} /*	1901	}
		1902
		1903	/*
2157	* desactivate recursively a flag on an object inventory	1904	* deactivate recursively a flag on an object inventory
2158	*/	1905	*/
2159	void	1906	void
2160	unflag_inv (object *op, int flag)	1907	unflag_inv (object *op, int flag)
2161	{	1908	{
2162	object *
2163	tmp;
2164
2165	if (op->inv)
2166	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1909	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2167	{	1910	{
2168	CLEAR_FLAG (tmp, flag);	1911	CLEAR_FLAG (tmp, flag);
2169	unflag_inv (tmp, flag);	1912	unflag_inv (tmp, flag);
2170	}	1913	}
2171	}
2172
2173	/*
2174	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in
2175	* all it's inventory (recursively).
2176	* If checksums are used, a player will get set_cheat called for
2177	* him/her-self and all object carried by a call to this function.
2178	*/
2179
2180	void
2181	set_cheat (object *op)
2182	{
2183	SET_FLAG (op, FLAG_WAS_WIZ);
2184	flag_inv (op, FLAG_WAS_WIZ);
2185	}	1914	}
2186		1915
2187	/*	1916	/*
2188	* find_free_spot(object, map, x, y, start, stop) will search for	1917	* find_free_spot(object, map, x, y, start, stop) will search for
2189	* a spot at the given map and coordinates which will be able to contain	1918	* a spot at the given map and coordinates which will be able to contain
…		…
2191	* to search (see the freearr_x/y[] definition).	1920	* to search (see the freearr_x/y[] definition).
2192	* It returns a random choice among the alternatives found.	1921	* It returns a random choice among the alternatives found.
2193	* start and stop are where to start relative to the free_arr array (1,9	1922	* start and stop are where to start relative to the free_arr array (1,9
2194	* does all 4 immediate directions). This returns the index into the	1923	* does all 4 immediate directions). This returns the index into the
2195	* array of the free spot, -1 if no spot available (dir 0 = x,y)	1924	* array of the free spot, -1 if no spot available (dir 0 = x,y)
2196	* Note - this only checks to see if there is space for the head of the
2197	* object - if it is a multispace object, this should be called for all
2198	* pieces.
2199	* Note2: This function does correctly handle tiled maps, but does not	1925	* Note: This function does correctly handle tiled maps, but does not
2200	* inform the caller. However, insert_ob_in_map will update as	1926	* inform the caller. However, insert_ob_in_map will update as
2201	* necessary, so the caller shouldn't need to do any special work.	1927	* necessary, so the caller shouldn't need to do any special work.
2202	* Note - updated to take an object instead of archetype - this is necessary	1928	* Note - updated to take an object instead of archetype - this is necessary
2203	* because arch_blocked (now ob_blocked) needs to know the movement type	1929	* because arch_blocked (now ob_blocked) needs to know the movement type
2204	* to know if the space in question will block the object. We can't use	1930	* to know if the space in question will block the object. We can't use
2205	* the archetype because that isn't correct if the monster has been	1931	* the archetype because that isn't correct if the monster has been
2206	* customized, changed states, etc.	1932	* customized, changed states, etc.
2207	*/	1933	*/
2208
2209	int	1934	int
2210	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)	1935	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)
2211	{	1936	{
2212	int
2213	i,
2214	index = 0, flag;
2215	static int
2216	altern[SIZEOFFREE];	1937	int altern[SIZEOFFREE];
		1938	int index = 0, flag;
2217		1939
2218	for (i = start; i < stop; i++)	1940	for (int i = start; i < stop; i++)
2219	{	1941	{
2220	flag = ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]);	1942	mapxy pos (m, x, y); pos.move (i);
2221	if (!flag)	1943
		1944	if (!pos.normalise ())
		1945	continue;
		1946
		1947	mapspace &ms = *pos;
		1948
		1949	if (ms.flags () & P_IS_ALIVE)
		1950	continue;
		1951
		1952	/* However, often
		1953	* ob doesn't have any move type (when used to place exits)
		1954	* so the AND operation in OB_TYPE_MOVE_BLOCK doesn't work.
		1955	*/
		1956	if (ob && ob->move_type == 0 && ms.move_block != MOVE_ALL)
		1957	{
2222	altern[index++] = i;	1958	altern [index++] = i;
		1959	continue;
		1960	}
2223		1961
2224	/* Basically, if we find a wall on a space, we cut down the search size.	1962	/* Basically, if we find a wall on a space, we cut down the search size.
2225	* In this way, we won't return spaces that are on another side of a wall.	1963	* In this way, we won't return spaces that are on another side of a wall.
2226	* This mostly work, but it cuts down the search size in all directions -	1964	* This mostly work, but it cuts down the search size in all directions -
2227	* if the space being examined only has a wall to the north and empty	1965	* if the space being examined only has a wall to the north and empty
2228	* spaces in all the other directions, this will reduce the search space	1966	* spaces in all the other directions, this will reduce the search space
2229	* to only the spaces immediately surrounding the target area, and	1967	* to only the spaces immediately surrounding the target area, and
2230	* won't look 2 spaces south of the target space.	1968	* won't look 2 spaces south of the target space.
2231	*/	1969	*/
2232	else if ((flag & AB_NO_PASS) && maxfree[i] < stop)	1970	if (ms.move_block == MOVE_ALL && maxfree[i] < stop)
		1971	{
2233	stop = maxfree[i];	1972	stop = maxfree[i];
		1973	continue;
		1974	}
		1975
		1976	/* Note it is intentional that we check ob - the movement type of the
		1977	* head of the object should correspond for the entire object.
		1978	*/
		1979	if (OB_TYPE_MOVE_BLOCK (ob, ms.move_block))
		1980	continue;
		1981
		1982	if (ob->blocked (pos.m, pos.x, pos.y))
		1983	continue;
		1984
		1985	altern [index++] = i;
2234	}	1986	}
		1987
2235	if (!index)	1988	if (!index)
2236	return -1;	1989	return -1;
		1990
2237	return altern[RANDOM () % index];	1991	return altern [rndm (index)];
2238	}	1992	}
2239		1993
2240	/*	1994	/*
2241	* find_first_free_spot(archetype, maptile, x, y) works like	1995	* find_first_free_spot(archetype, maptile, x, y) works like
2242	* find_free_spot(), but it will search max number of squares.	1996	* find_free_spot(), but it will search max number of squares.
2243	* But it will return the first available spot, not a random choice.	1997	* But it will return the first available spot, not a random choice.
2244	* Changed 0.93.2: Have it return -1 if there is no free spot available.	1998	* Changed 0.93.2: Have it return -1 if there is no free spot available.
2245	*/	1999	*/
2246
2247	int	2000	int
2248	find_first_free_spot (const object *ob, maptile *m, int x, int y)	2001	find_first_free_spot (const object *ob, maptile *m, int x, int y)
2249	{	2002	{
2250	int
2251	i;
2252
2253	for (i = 0; i < SIZEOFFREE; i++)	2003	for (int i = 0; i < SIZEOFFREE; i++)
2254	{
2255	if (!ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]))	2004	if (!ob->blocked (m, x + freearr_x[i], y + freearr_y[i]))
2256	return i;	2005	return i;
2257	}	2006
2258	return -1;	2007	return -1;
2259	}	2008	}
2260		2009
2261	/*	2010	/*
2262	* The function permute(arr, begin, end) randomly reorders the array	2011	* The function permute(arr, begin, end) randomly reorders the array
2263	* arr[begin..end-1].	2012	* arr[begin..end-1].
		2013	* now uses a fisher-yates shuffle, old permute was broken
2264	*/	2014	*/
2265	static void	2015	static void
2266	permute (int *arr, int begin, int end)	2016	permute (int *arr, int begin, int end)
2267	{	2017	{
2268	int	2018	arr += begin;
2269	i,
2270	j,
2271	tmp,
2272	len;
2273
2274	len = end - begin;	2019	end -= begin;
2275	for (i = begin; i < end; i++)
2276	{
2277	j = begin + RANDOM () % len;
2278		2020
2279	tmp = arr[i];	2021	while (--end)
2280	arr[i] = arr[j];	2022	swap (arr [end], arr [rndm (end + 1)]);
2281	arr[j] = tmp;
2282	}
2283	}	2023	}
2284		2024
2285	/* new function to make monster searching more efficient, and effective!	2025	/* new function to make monster searching more efficient, and effective!
2286	* This basically returns a randomized array (in the passed pointer) of	2026	* This basically returns a randomized array (in the passed pointer) of
2287	* the spaces to find monsters. In this way, it won't always look for	2027	* the spaces to find monsters. In this way, it won't always look for
…		…
2290	* the 3x3 area will be searched, just not in a predictable order.	2030	* the 3x3 area will be searched, just not in a predictable order.
2291	*/	2031	*/
2292	void	2032	void
2293	get_search_arr (int *search_arr)	2033	get_search_arr (int *search_arr)
2294	{	2034	{
2295	int	2035	int i;
2296	i;
2297		2036
2298	for (i = 0; i < SIZEOFFREE; i++)	2037	for (i = 0; i < SIZEOFFREE; i++)
2299	{
2300	search_arr[i] = i;	2038	search_arr[i] = i;
2301	}
2302		2039
2303	permute (search_arr, 1, SIZEOFFREE1 + 1);	2040	permute (search_arr, 1, SIZEOFFREE1 + 1);
2304	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);	2041	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);
2305	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);	2042	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);
2306	}	2043	}
…		…
2315	* Perhaps incorrectly, but I'm making the assumption that exclude	2052	* Perhaps incorrectly, but I'm making the assumption that exclude
2316	* is actually want is going to try and move there. We need this info	2053	* is actually want is going to try and move there. We need this info
2317	* because we have to know what movement the thing looking to move	2054	* because we have to know what movement the thing looking to move
2318	* there is capable of.	2055	* there is capable of.
2319	*/	2056	*/
2320
2321	int	2057	int
2322	find_dir (maptile *m, int x, int y, object *exclude)	2058	find_dir (maptile *m, int x, int y, object *exclude)
2323	{	2059	{
2324	int
2325	i,
2326	max = SIZEOFFREE, mflags;	2060	int max = SIZEOFFREE, mflags;
2327
2328	sint16 nx, ny;
2329	object *
2330	tmp;
2331	maptile *
2332	mp;
2333
2334	MoveType blocked, move_type;	2061	MoveType move_type;
2335		2062
2336	if (exclude && exclude->head)	2063	if (exclude && exclude->head_ () != exclude)
2337	{	2064	{
2338	exclude = exclude->head;	2065	exclude = exclude->head;
2339	move_type = exclude->move_type;	2066	move_type = exclude->move_type;
2340	}	2067	}
2341	else	2068	else
2342	{	2069	{
2343	/* If we don't have anything, presume it can use all movement types. */	2070	/* If we don't have anything, presume it can use all movement types. */
2344	move_type = MOVE_ALL;	2071	move_type = MOVE_ALL;
2345	}	2072	}
2346		2073
2347	for (i = 1; i < max; i++)	2074	for (int i = 1; i < max; i++)
2348	{	2075	{
2349	mp = m;	2076	mapxy pos (m, x, y);
2350	nx = x + freearr_x[i];	2077	pos.move (i);
2351	ny = y + freearr_y[i];
2352		2078
2353	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);	2079	if (!pos.normalise ())
2354	if (mflags & P_OUT_OF_MAP)
2355	{
2356	max = maxfree[i];	2080	max = maxfree[i];
2357	}
2358	else	2081	else
2359	{	2082	{
2360	blocked = GET_MAP_MOVE_BLOCK (mp, nx, ny);	2083	mapspace &ms = *pos;
2361		2084
2362	if ((move_type & blocked) == move_type)	2085	if ((move_type & ms.move_block) == move_type)
		2086	max = maxfree [i];
		2087	else if (ms.flags () & P_IS_ALIVE)
2363	{	2088	{
2364	max = maxfree[i];	2089	for (object *tmp = ms.bot; tmp; tmp = tmp->above)
2365	}	2090	if ((tmp->flag [FLAG_MONSTER] || tmp->is_player ())
2366	else if (mflags & P_IS_ALIVE)	2091	&& (tmp != exclude || (tmp->head_ () != tmp && tmp->head_ () != exclude)))
2367	{
2368	for (tmp = GET_MAP_OB (mp, nx, ny); tmp != NULL; tmp = tmp->above)
2369	{
2370	if ((QUERY_FLAG (tmp, FLAG_MONSTER) || tmp->type == PLAYER) && (tmp != exclude || (tmp->head && tmp->head != exclude)))
2371	{
2372	break;
2373	}
2374	}
2375	if (tmp)
2376	{
2377	return freedir[i];	2092	return freedir [i];
2378	}
2379	}	2093	}
2380	}	2094	}
2381	}	2095	}
		2096
2382	return 0;	2097	return 0;
2383	}	2098	}
2384		2099
2385	/*	2100	/*
2386	* distance(object 1, object 2) will return the square of the	2101	* distance(object 1, object 2) will return the square of the
2387	* distance between the two given objects.	2102	* distance between the two given objects.
2388	*/	2103	*/
2389
2390	int	2104	int
2391	distance (const object *ob1, const object *ob2)	2105	distance (const object *ob1, const object *ob2)
2392	{	2106	{
2393	int
2394	i;
2395
2396	i = (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);	2107	return (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);
2397	return i;
2398	}	2108	}
2399		2109
2400	/*	2110	/*
2401	* find_dir_2(delta-x,delta-y) will return a direction in which	2111	* find_dir_2(delta-x,delta-y) will return a direction in which
2402	* an object which has subtracted the x and y coordinates of another	2112	* an object which has subtracted the x and y coordinates of another
2403	* object, needs to travel toward it.	2113	* object, needs to travel toward it.
2404	*/	2114	*/
2405
2406	int	2115	int
2407	find_dir_2 (int x, int y)	2116	find_dir_2 (int x, int y)
2408	{	2117	{
2409	int	2118	int q;
2410	q;
2411		2119
2412	if (y)	2120	if (y)
2413	q = x * 100 / y;	2121	q = x * 100 / y;
2414	else if (x)	2122	else if (x)
2415	q = -300 * x;	2123	q = -300 * x;
…		…
2440		2148
2441	return 3;	2149	return 3;
2442	}	2150	}
2443		2151
2444	/*	2152	/*
2445	* absdir(int): Returns a number between 1 and 8, which represent
2446	* the "absolute" direction of a number (it actually takes care of
2447	* "overflow" in previous calculations of a direction).
2448	*/
2449
2450	int
2451	absdir (int d)
2452	{
2453	while (d < 1)
2454	d += 8;
2455	while (d > 8)
2456	d -= 8;
2457	return d;
2458	}
2459
2460	/*
2461	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is	2153	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is
2462	* between two directions (which are expected to be absolute (see absdir())	2154	* between two directions (which are expected to be absolute (see absdir())
2463	*/	2155	*/
2464
2465	int	2156	int
2466	dirdiff (int dir1, int dir2)	2157	dirdiff (int dir1, int dir2)
2467	{	2158	{
2468	int	2159	int d;
2469	d;
2470		2160
2471	d = abs (dir1 - dir2);	2161	d = abs (dir1 - dir2);
2472	if (d > 4)	2162	if (d > 4)
2473	d = 8 - d;	2163	d = 8 - d;
		2164
2474	return d;	2165	return d;
2475	}	2166	}
2476		2167
2477	/* peterm:	2168	/* peterm:
2478	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.	2169	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.
…		…
2481	* This basically means that if direction is 15, then it could either go	2172	* This basically means that if direction is 15, then it could either go
2482	* direction 4, 14, or 16 to get back to where we are.	2173	* direction 4, 14, or 16 to get back to where we are.
2483	* Moved from spell_util.c to object.c with the other related direction	2174	* Moved from spell_util.c to object.c with the other related direction
2484	* functions.	2175	* functions.
2485	*/	2176	*/
2486
2487	int
2488	reduction_dir[SIZEOFFREE][3] = {	2177	const int reduction_dir[SIZEOFFREE][3] = {
2489	{0, 0, 0}, /* 0 */	2178	{0, 0, 0}, /* 0 */
2490	{0, 0, 0}, /* 1 */	2179	{0, 0, 0}, /* 1 */
2491	{0, 0, 0}, /* 2 */	2180	{0, 0, 0}, /* 2 */
2492	{0, 0, 0}, /* 3 */	2181	{0, 0, 0}, /* 3 */
2493	{0, 0, 0}, /* 4 */	2182	{0, 0, 0}, /* 4 */
…		…
2541	* find a path to that monster that we found. If not,	2230	* find a path to that monster that we found. If not,
2542	* we don't bother going toward it. Returns 1 if we	2231	* we don't bother going toward it. Returns 1 if we
2543	* can see a direct way to get it	2232	* can see a direct way to get it
2544	* Modified to be map tile aware -.MSW	2233	* Modified to be map tile aware -.MSW
2545	*/	2234	*/
2546
2547
2548	int	2235	int
2549	can_see_monsterP (maptile *m, int x, int y, int dir)	2236	can_see_monsterP (maptile *m, int x, int y, int dir)
2550	{	2237	{
2551	sint16 dx, dy;	2238	sint16 dx, dy;
2552	int
2553	mflags;	2239	int mflags;
2554		2240
2555	if (dir < 0)	2241	if (dir < 0)
2556	return 0; /* exit condition: invalid direction */	2242	return 0; /* exit condition: invalid direction */
2557		2243
2558	dx = x + freearr_x[dir];	2244	dx = x + freearr_x[dir];
…		…
2571	return 0;	2257	return 0;
2572		2258
2573	/* yes, can see. */	2259	/* yes, can see. */
2574	if (dir < 9)	2260	if (dir < 9)
2575	return 1;	2261	return 1;
		2262
2576	return can_see_monsterP (m, x, y, reduction_dir[dir][0]) |	2263	return can_see_monsterP (m, x, y, reduction_dir[dir][0])
2577	can_see_monsterP (m, x, y, reduction_dir[dir][1]) | can_see_monsterP (m, x, y, reduction_dir[dir][2]);	2264	| can_see_monsterP (m, x, y, reduction_dir[dir][1])
		2265	| can_see_monsterP (m, x, y, reduction_dir[dir][2]);
2578	}	2266	}
2579
2580
2581		2267
2582	/*	2268	/*
2583	* can_pick(picker, item): finds out if an object is possible to be	2269	* can_pick(picker, item): finds out if an object is possible to be
2584	* picked up by the picker. Returnes 1 if it can be	2270	* picked up by the picker. Returnes 1 if it can be
2585	* picked up, otherwise 0.	2271	* picked up, otherwise 0.
…		…
2587	* Cf 0.91.3 - don't let WIZ's pick up anything - will likely cause	2273	* Cf 0.91.3 - don't let WIZ's pick up anything - will likely cause
2588	* core dumps if they do.	2274	* core dumps if they do.
2589	*	2275	*
2590	* Add a check so we can't pick up invisible objects (0.93.8)	2276	* Add a check so we can't pick up invisible objects (0.93.8)
2591	*/	2277	*/
2592
2593	int	2278	int
2594	can_pick (const object *who, const object *item)	2279	can_pick (const object *who, const object *item)
2595	{	2280	{
2596	return /*QUERY_FLAG(who,FLAG_WIZ)|| */	2281	return /*QUERY_FLAG(who,FLAG_WIZ)|| */
2597	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&	2282	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&
2598	!QUERY_FLAG (item, FLAG_ALIVE) && !item->invisible && (who->type == PLAYER || item->weight < who->weight / 3));	2283	!QUERY_FLAG (item, FLAG_ALIVE) && !item->invisible && (who->is_player () || item->weight < who->weight / 3));
2599	}	2284	}
2600
2601		2285
2602	/*	2286	/*
2603	* create clone from object to another	2287	* create clone from object to another
2604	*/	2288	*/
2605	object *	2289	object *
2606	object_create_clone (object *asrc)	2290	object::deep_clone ()
2607	{	2291	{
2608	object *	2292	assert (("deep_clone called on non-head object", is_head ()));
2609	dst = NULL, *tmp, *src, *part, *prev, *item;
2610		2293
2611	if (!asrc)	2294	object *dst = clone ();
2612	return NULL;
2613	src = asrc;
2614	if (src->head)
2615	src = src->head;
2616		2295
2617	prev = NULL;	2296	object *prev = dst;
2618	for (part = src; part; part = part->more)	2297	for (object *part = this->more; part; part = part->more)
2619	{	2298	{
2620	tmp = get_object ();	2299	object *tmp = part->clone ();
2621	copy_object (part, tmp);
2622	tmp->x -= src->x;
2623	tmp->y -= src->y;
2624	if (!part->head)
2625	{
2626	dst = tmp;
2627	tmp->head = NULL;
2628	}
2629	else
2630	{
2631	tmp->head = dst;	2300	tmp->head = dst;
2632	}
2633	tmp->more = NULL;
2634	if (prev)
2635	prev->more = tmp;	2301	prev->more = tmp;
2636	prev = tmp;	2302	prev = tmp;
2637	}	2303	}
2638		2304
2639	for (item = src->inv; item; item = item->below)	2305	for (object *item = inv; item; item = item->below)
2640	insert_ob_in_ob (object_create_clone (item), dst);	2306	insert_ob_in_ob (item->deep_clone (), dst);
2641		2307
2642	return dst;	2308	return dst;
2643	}
2644
2645	/* GROS - Creates an object using a string representing its content. */
2646	/* Basically, we save the content of the string to a temp file, then call */
2647	/* load_object on it. I admit it is a highly inefficient way to make things, */
2648	/* but it was simple to make and allows reusing the load_object function. */
2649	/* Remember not to use load_object_str in a time-critical situation. */
2650	/* Also remember that multiparts objects are not supported for now. */
2651
2652	object *
2653	load_object_str (const char *obstr)
2654	{
2655	object *op;
2656	char filename[MAX_BUF];
2657
2658	sprintf (filename, "%s/cfloadobstr2044", settings.tmpdir);
2659
2660	FILE *tempfile = fopen (filename, "w");
2661
2662	if (tempfile == NULL)
2663	{
2664	LOG (llevError, "Error - Unable to access load object temp file\n");
2665	return NULL;
2666	}
2667
2668	fprintf (tempfile, obstr);
2669	fclose (tempfile);
2670
2671	op = get_object ();
2672
2673	object_thawer thawer (filename);
2674
2675	if (thawer)
2676	load_object (thawer, op, 0);
2677
2678	LOG (llevDebug, " load str completed, object=%s\n", &op->name);
2679	CLEAR_FLAG (op, FLAG_REMOVED);
2680
2681	return op;
2682	}	2309	}
2683		2310
2684	/* This returns the first object in who's inventory that	2311	/* This returns the first object in who's inventory that
2685	* has the same type and subtype match.	2312	* has the same type and subtype match.
2686	* returns NULL if no match.	2313	* returns NULL if no match.
2687	*/	2314	*/
2688	object *	2315	object *
2689	find_obj_by_type_subtype (const object *who, int type, int subtype)	2316	find_obj_by_type_subtype (const object *who, int type, int subtype)
2690	{	2317	{
2691	object *tmp;
2692
2693	for (tmp = who->inv; tmp; tmp = tmp->below)	2318	for (object *tmp = who->inv; tmp; tmp = tmp->below)
2694	if (tmp->type == type && tmp->subtype == subtype)	2319	if (tmp->type == type && tmp->subtype == subtype)
2695	return tmp;	2320	return tmp;
2696		2321
2697	return NULL;
2698	}
2699
2700	/* If ob has a field named key, return the link from the list,
2701	* otherwise return NULL.
2702	*
2703	* key must be a passed in shared string - otherwise, this won't
2704	* do the desired thing.
2705	*/
2706	key_value *
2707	get_ob_key_link (const object *ob, const char *key)
2708	{
2709	key_value *link;
2710
2711	for (link = ob->key_values; link != NULL; link = link->next)
2712	if (link->key == key)
2713	return link;
2714
2715	return NULL;
2716	}
2717
2718	/*
2719	* Returns the value of op has an extra_field for key, or NULL.
2720	*
2721	* The argument doesn't need to be a shared string.
2722	*
2723	* The returned string is shared.
2724	*/
2725	const char *
2726	get_ob_key_value (const object *op, const char *const key)
2727	{
2728	key_value *link;
2729	shstr_cmp canonical_key (key);
2730
2731	if (!canonical_key)
2732	{
2733	/* 1. There being a field named key on any object
2734	* implies there'd be a shared string to find.
2735	* 2. Since there isn't, no object has this field.
2736	* 3. Therefore, *this* object doesn't have this field.
2737	*/
2738	return 0;
2739	}
2740
2741	/* This is copied from get_ob_key_link() above -
2742	* only 4 lines, and saves the function call overhead.
2743	*/
2744	for (link = op->key_values; link; link = link->next)
2745	if (link->key == canonical_key)
2746	return link->value;
2747
2748	return 0;	2322	return 0;
2749	}	2323	}
2750		2324
2751		2325	shstr_tmp
2752	/*	2326	object::kv_get (shstr_tmp key) const
2753	* Updates the canonical_key in op to value.
2754	*
2755	* canonical_key is a shared string (value doesn't have to be).
2756	*
2757	* Unless add_key is TRUE, it won't add fields, only change the value of existing
2758	* keys.
2759	*
2760	* Returns TRUE on success.
2761	*/
2762	int
2763	set_ob_key_value_s (object *op, const shstr & canonical_key, const char *value, int add_key)
2764	{	2327	{
2765	key_value *	2328	for (key_value *kv = key_values; kv; kv = kv->next)
2766	field = NULL, *last = NULL;	2329	if (kv->key == key)
		2330	return kv->value;
2767		2331
2768	for (field = op->key_values; field != NULL; field = field->next)	2332	return shstr ();
2769	{	2333	}
2770	if (field->key != canonical_key)	2334
		2335	void
		2336	object::kv_set (shstr_tmp key, shstr_tmp value)
		2337	{
		2338	for (key_value *kv = key_values; kv; kv = kv->next)
		2339	if (kv->key == key)
2771	{	2340	{
2772	last = field;	2341	kv->value = value;
2773	continue;	2342	return;
2774	}	2343	}
2775		2344
2776	if (value)	2345	key_value *kv = new key_value;
2777	field->value = value;	2346
2778	else	2347	kv->next = key_values;
		2348	kv->key = key;
		2349	kv->value = value;
		2350
		2351	key_values = kv;
		2352	}
		2353
		2354	void
		2355	object::kv_del (shstr_tmp key)
		2356	{
		2357	for (key_value **kvp = &key_values; *kvp; kvp = &(*kvp)->next)
		2358	if ((*kvp)->key == key)
2779	{	2359	{
2780	/* Basically, if the archetype has this key set,	2360	key_value *kv = *kvp;
2781	* we need to store the null value so when we save	2361	*kvp = (*kvp)->next;
2782	* it, we save the empty value so that when we load,	2362	delete kv;
2783	* we get this value back again.	2363	return;
2784	*/
2785	if (get_ob_key_link (&op->arch->clone, canonical_key))
2786	field->value = 0;
2787	else
2788	{
2789	if (last)
2790	last->next = field->next;
2791	else
2792	op->key_values = field->next;
2793
2794	delete field;
2795	}
2796	}	2364	}
2797	return TRUE;
2798	}
2799	/* IF we get here, key doesn't exist */
2800
2801	/* No field, we'll have to add it. */
2802
2803	if (!add_key)
2804	{
2805	return FALSE;
2806	}
2807	/* There isn't any good reason to store a null
2808	* value in the key/value list. If the archetype has
2809	* this key, then we should also have it, so shouldn't
2810	* be here. If user wants to store empty strings,
2811	* should pass in ""
2812	*/
2813	if (value == NULL)
2814	return TRUE;
2815
2816	field = new key_value;
2817
2818	field->key = canonical_key;
2819	field->value = value;
2820	/* Usual prepend-addition. */
2821	field->next = op->key_values;
2822	op->key_values = field;
2823
2824	return TRUE;
2825	}
2826
2827	/*
2828	* Updates the key in op to value.
2829	*
2830	* If add_key is FALSE, this will only update existing keys,
2831	* and not add new ones.
2832	* In general, should be little reason FALSE is ever passed in for add_key
2833	*
2834	* Returns TRUE on success.
2835	*/
2836	int
2837	set_ob_key_value (object *op, const char *key, const char *value, int add_key)
2838	{
2839	shstr key_ (key);
2840
2841	return set_ob_key_value_s (op, key_, value, add_key);
2842	}	2365	}
2843		2366
2844	object::depth_iterator::depth_iterator (object *container)	2367	object::depth_iterator::depth_iterator (object *container)
2845	: iterator_base (container)	2368	: iterator_base (container)
2846	{	2369	{
…		…
2860	}	2383	}
2861	else	2384	else
2862	item = item->env;	2385	item = item->env;
2863	}	2386	}
2864		2387
		2388	const char *
		2389	object::flag_desc (char *desc, int len) const
		2390	{
		2391	char *p = desc;
		2392	bool first = true;
		2393
		2394	*p = 0;
		2395
		2396	for (int i = 0; i < NUM_FLAGS; i++)
		2397	{
		2398	if (len <= 10) // magic constant!
		2399	{
		2400	snprintf (p, len, ",...");
		2401	break;
		2402	}
		2403
		2404	if (flag [i])
		2405	{
		2406	int cnt = snprintf (p, len, "%s%d", first ? "" : ",", i);
		2407	len -= cnt;
		2408	p += cnt;
		2409	first = false;
		2410	}
		2411	}
		2412
		2413	return desc;
		2414	}
		2415
2865	// return a suitable string describing an objetc in enough detail to find it	2416	// return a suitable string describing an object in enough detail to find it
2866	const char *	2417	const char *
2867	object::debug_desc (char *info) const	2418	object::debug_desc (char *info) const
2868	{	2419	{
		2420	char flagdesc[512];
2869	char info2[256 * 3];	2421	char info2[256 * 4];
2870	char *p = info;	2422	char *p = info;
2871		2423
2872	p += snprintf (p, 256, "%d=\"%s%s%s\"",	2424	p += snprintf (p, 512, "{cnt:%d,uuid:%s,name:\"%s\"%s%s%s,flags:[%s],type:%d}",
2873	count,	2425	count,
		2426	uuid.c_str (),
2874	&name,	2427	&name,
2875	title ? " " : "",	2428	title ? ",title:\"" : "",
2876	title ? (const char *)title : "");	2429	title ? (const char *)title : "",
		2430	title ? "\"" : "",
		2431	flag_desc (flagdesc, 512), type);
2877		2432
2878	if (env)	2433	if (!flag[FLAG_REMOVED] && env)
2879	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));	2434	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));
2880		2435
2881	if (map)	2436	if (map)
2882	p += snprintf (p, 256, "(on %s@%d+%d)", map->path, x, y);	2437	p += snprintf (p, 256, "(on %s@%d+%d)", &map->path, x, y);
2883		2438
2884	return info;	2439	return info;
2885	}	2440	}
2886		2441
2887	const char *	2442	const char *
2888	object::debug_desc () const	2443	object::debug_desc () const
2889	{	2444	{
2890	static char info[256 * 3];	2445	static char info[3][256 * 4];
		2446	static int info_idx;
		2447
2891	return debug_desc (info);	2448	return debug_desc (info [++info_idx % 3]);
2892	}	2449	}
2893		2450
		2451	struct region *
		2452	object::region () const
		2453	{
		2454	return map ? map->region (x, y)
		2455	: region::default_region ();
		2456	}
		2457
		2458	const materialtype_t *
		2459	object::dominant_material () const
		2460	{
		2461	if (materialtype_t *mt = name_to_material (materialname))
		2462	return mt;
		2463
		2464	return name_to_material (shstr_unknown);
		2465	}
		2466
		2467	void
		2468	object::open_container (object *new_container)
		2469	{
		2470	if (container == new_container)
		2471	return;
		2472
		2473	object *old_container = container;
		2474
		2475	if (old_container)
		2476	{
		2477	if (INVOKE_OBJECT (CLOSE, old_container, ARG_OBJECT (this)))
		2478	return;
		2479
		2480	#if 0
		2481	// remove the "Close old_container" object.
		2482	if (object *closer = old_container->inv)
		2483	if (closer->type == CLOSE_CON)
		2484	closer->destroy ();
		2485	#endif
		2486
		2487	// make sure the container is available
		2488	esrv_send_item (this, old_container);
		2489
		2490	old_container->flag [FLAG_APPLIED] = false;
		2491	container = 0;
		2492
		2493	// client needs item update to make it work, client bug requires this to be separate
		2494	esrv_update_item (UPD_FLAGS, this, old_container);
		2495
		2496	new_draw_info_format (NDI_UNIQUE, 0, this, "You close %s.", old_container->query_name ());
		2497	play_sound (sound_find ("chest_close"));
		2498	}
		2499
		2500	if (new_container)
		2501	{
		2502	if (INVOKE_OBJECT (OPEN, new_container, ARG_OBJECT (this)))
		2503	return;
		2504
		2505	// TODO: this does not seem to serve any purpose anymore?
		2506	#if 0
		2507	// insert the "Close Container" object.
		2508	if (archetype *closer = new_container->other_arch)
		2509	{
		2510	object *closer = arch_to_object (new_container->other_arch);
		2511	closer->flag [FLAG_NO_MAP_SAVE] = 1;
		2512	new_container->insert (closer);
		2513	}
		2514	#endif
		2515
		2516	new_draw_info_format (NDI_UNIQUE, 0, this, "You open %s.", new_container->query_name ());
		2517
		2518	// make sure the container is available, client bug requires this to be separate
		2519	esrv_send_item (this, new_container);
		2520
		2521	new_container->flag [FLAG_APPLIED] = true;
		2522	container = new_container;
		2523
		2524	// client needs flag change
		2525	esrv_update_item (UPD_FLAGS, this, new_container);
		2526	esrv_send_inventory (this, new_container);
		2527	play_sound (sound_find ("chest_open"));
		2528	}
		2529	// else if (!old_container->env && contr && contr->ns)
		2530	// contr->ns->floorbox_reset ();
		2531	}
		2532
		2533	object *
		2534	object::force_find (shstr_tmp name)
		2535	{
		2536	/* cycle through his inventory to look for the MARK we want to
		2537	* place
		2538	*/
		2539	for (object *tmp = inv; tmp; tmp = tmp->below)
		2540	if (tmp->type == FORCE && tmp->slaying == name)
		2541	return splay (tmp);
		2542
		2543	return 0;
		2544	}
		2545
		2546	object *
		2547	object::force_add (shstr_tmp name, int duration)
		2548	{
		2549	if (object *force = force_find (name))
		2550	force->destroy ();
		2551
		2552	object *force = get_archetype (FORCE_NAME);
		2553
		2554	force->slaying = name;
		2555	force->stats.food = 1;
		2556	force->speed_left = -1.f;
		2557
		2558	force->set_speed (duration ? 1.f / duration : 0.f);
		2559	force->flag [FLAG_IS_USED_UP] = true;
		2560	force->flag [FLAG_APPLIED] = true;
		2561
		2562	return insert (force);
		2563	}
		2564
		2565	void
		2566	object::play_sound (faceidx sound) const
		2567	{
		2568	if (!sound)
		2569	return;
		2570
		2571	if (is_on_map ())
		2572	map->play_sound (sound, x, y);
		2573	else if (object *pl = in_player ())
		2574	pl->contr->play_sound (sound);
		2575	}
		2576
		2577	void
		2578	object::say_msg (const char *msg) const
		2579	{
		2580	if (is_on_map ())
		2581	map->say_msg (msg, x, y);
		2582	else if (object *pl = in_player ())
		2583	pl->contr->play_sound (sound);
		2584	}
		2585
		2586	void
		2587	object::make_noise ()
		2588	{
		2589	// we do not model noise in the map, so instead put
		2590	// a temporary light into the noise source
		2591	// could use the map instead, but that's less reliable for our
		2592	// goal, which is to make invisibility a bit harder to exploit
		2593
		2594	// currently only works sensibly for players
		2595	if (!is_player ())
		2596	return;
		2597
		2598	// find old force, or create new one
		2599	object *force = force_find (shstr_noise_force);
		2600
		2601	if (force)
		2602	force->speed_left = -1.f; // patch old speed up
		2603	else
		2604	{
		2605	force = archetype::get (shstr_noise_force);
		2606
		2607	force->slaying = shstr_noise_force;
		2608	force->stats.food = 1;
		2609	force->speed_left = -1.f;
		2610
		2611	force->set_speed (1.f / 4.f);
		2612	force->flag [FLAG_IS_USED_UP] = true;
		2613	force->flag [FLAG_APPLIED] = true;
		2614
		2615	insert (force);
		2616	}
		2617	}
		2618

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