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Comparing deliantra/server/common/object.C (file contents):
Revision 1.110 by root, Sun Jan 7 23:12:03 2007 UTC vs.
Revision 1.286 by root, Wed Sep 2 16:54:20 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 (C) 2005, 2006, 2007 Marc Lehmann & Crossfire+ Development Team	4	* Copyright (©) 2005,2006,2007,2008,2009 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
5	Copyright (C) 2001 Mark Wedel & Crossfire Development Team	5	* Copyright (©) 2001,2007 Mark Wedel & Crossfire Development Team
6	Copyright (C) 1992 Frank Tore Johansen	6	* Copyright (©) 1992,2007 Frank Tore Johansen
7		7	*
8	This program is free software; you can redistribute it and/or modify	8	* Deliantra is free software: you can redistribute it and/or modify
9	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
10	the Free Software Foundation; either version 2 of the License, or	10	* the Free Software Foundation, either version 3 of the License, or
11	(at your option) any later version.	11	* (at your option) any later version.
12		12	*
13	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,
14	but WITHOUT ANY WARRANTY; without even the implied warranty of	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
15	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16	GNU General Public License for more details.	16	* GNU General Public License for more details.
17		17	*
18	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
19	along with this program; if not, write to the Free Software	19	* along with this program. If not, see <http://www.gnu.org/licenses/>.
20	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.	20	*
21		21	* The authors can be reached via e-mail to <support@deliantra.net>
22	The authors can be reached via e-mail at <crossfire@schmorp.de>
23	*/	22	*/
24		23
25	/* Eneq(@csd.uu.se): Added weight-modifiers in environment of objects.
26	sub/add_weight will transcend the environment updating the carrying
27	variable. */
28	#include <global.h>	24	#include <global.h>
29	#include <stdio.h>	25	#include <stdio.h>
30	#include <sys/types.h>	26	#include <sys/types.h>
31	#include <sys/uio.h>	27	#include <sys/uio.h>
32	#include <object.h>	28	#include <object.h>
33	#include <funcpoint.h>	29	#include <sproto.h>
34	#include <loader.h>	30	#include <loader.h>
35		31
36	#include <bitset>	32	#include <bitset>
37		33
38	int nrofallocobjects = 0;	34	UUID UUID::cur;
39	static UUID uuid;	35	static uint64_t seq_next_save;
40	const uint64 UUID_SKIP = 1<<19;	36	static const uint64 UUID_GAP = 1<<19;
		37	uint32_t mapspace::smellcount = 10000;
41		38
42	objectvec objects;	39	objectvec objects;
43	activevec actives;	40	activevec actives;
44		41
45	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,
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	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
47	};	47	};
48	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,
49	-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
50	};	53	};
51	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,
52	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
53	};	59	};
54	int freedir[SIZEOFFREE] = {	60	int freedir[SIZEOFFREE] = {
55	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,
56	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
57	};	65	};
58		66
59	static void	67	static void
60	write_uuid (void)	68	write_uuid (uval64 skip, bool sync)
61	{	69	{
62	char filename1[MAX_BUF], filename2[MAX_BUF];	70	CALL_BEGIN (2);
63		71	CALL_ARG_SV (newSVval64 (skip));
64	sprintf (filename1, "%s/uuid", settings.localdir);	72	CALL_ARG_SV (boolSV (sync));
65	sprintf (filename2, "%s/uuid~", settings.localdir);	73	CALL_CALL ("cf::write_uuid", G_DISCARD);
66		74	CALL_END;
67	FILE *fp;
68
69	if (!(fp = fopen (filename2, "w")))
70	{
71	LOG (llevError, "ERROR: cannot open %s for writing, unable to write UUID!\n", filename2);
72	return;
73	}
74
75	fprintf (fp, "<1,%llx>\n", (unsigned long long)uuid.seq + UUID_SKIP * 2);
76	fclose (fp);
77	rename (filename2, filename1);
78	}	75	}
79		76
80	static void	77	static void
81	read_uuid (void)	78	read_uuid (void)
82	{	79	{
83	char filename[MAX_BUF];	80	char filename[MAX_BUF];
84		81
85	sprintf (filename, "%s/uuid", settings.localdir);	82	sprintf (filename, "%s/uuid", settings.localdir);
		83
		84	seq_next_save = 0;
86		85
87	FILE *fp;	86	FILE *fp;
88		87
89	if (!(fp = fopen (filename, "r")))	88	if (!(fp = fopen (filename, "r")))
90	{	89	{
91	if (errno == ENOENT)	90	if (errno == ENOENT)
92	{	91	{
93	LOG (llevInfo, "RESET uid to 1\n");	92	LOG (llevInfo, "RESET uid to 1\n");
94	uuid.seq = 0;	93	UUID::cur.seq = 0;
95	write_uuid ();	94	write_uuid (UUID_GAP, true);
96	return;	95	return;
97	}	96	}
98		97
99	LOG (llevError, "FATAL: cannot open %s for reading!\n", filename);	98	LOG (llevError, "FATAL: cannot open %s for reading!\n", filename);
100	_exit (1);	99	_exit (1);
101	}	100	}
102		101
103	int version;	102	UUID::BUF buf;
104	unsigned long long uid;	103	buf[0] = 0;
105	if (2 != fscanf (fp, "<%d,%llx>\n", &version, &uid) || version != 1)	104	fgets (buf, sizeof (buf), fp);
		105
		106	if (!UUID::cur.parse (buf))
106	{	107	{
107	LOG (llevError, "FATAL: error reading uid from %s!\n", filename);	108	LOG (llevError, "FATAL: error reading uid from %s (%s)!\n", filename, buf);
108	_exit (1);	109	_exit (1);
109	}	110	}
110		111
111	uuid.seq = uid;	112	LOG (llevDebug, "read UUID: %s\n", UUID::cur.c_str ());
112	write_uuid ();	113
113	LOG (llevDebug, "read UID: %" PRId64 "\n", uid);	114	write_uuid (UUID_GAP, true);
114	fclose (fp);	115	fclose (fp);
115	}	116	}
116		117
117	UUID	118	UUID
118	gen_uuid ()	119	UUID::gen ()
119	{	120	{
120	UUID uid;	121	UUID uid;
121		122
122	uid.seq = ++uuid.seq;	123	uid.seq = ++cur.seq;
123		124
124	if (!(uuid.seq & (UUID_SKIP - 1)))	125	if (expect_false (cur.seq >= seq_next_save))
125	write_uuid ();	126	{
		127	seq_next_save = UUID::cur.seq + (UUID_GAP >> 1);
		128	write_uuid (UUID_GAP, false);
		129	}
		130
126		131
127	return uid;	132	return uid;
128	}	133	}
129		134
130	void	135	void
131	init_uuid ()	136	UUID::init ()
132	{	137	{
133	read_uuid ();	138	read_uuid ();
134	}	139	}
135		140
136	/* 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. */
137	static int	142	static bool
138	compare_ob_value_lists_one (const object *wants, const object *has)	143	compare_ob_value_lists_one (const object *wants, const object *has)
139	{	144	{
140	key_value *wants_field;
141
142	/* 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
143	* 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
144	* different structure or at least keep the lists sorted...	147	* different structure or at least keep the lists sorted...
145	*/	148	*/
146		149
147	/* For each field in wants, */	150	/* For each field in wants, */
148	for (wants_field = wants->key_values; wants_field; wants_field = wants_field->next)	151	for (key_value *kv = wants->key_values; kv; kv = kv->next)
149	{	152	if (has->kv_get (kv->key) != kv->value)
150	key_value *has_field;	153	return false;
151
152	/* Look for a field in has with the same key. */
153	has_field = get_ob_key_link (has, wants_field->key);
154
155	if (has_field == NULL)
156	{
157	/* No field with that name. */
158	return FALSE;
159	}
160
161	/* Found the matching field. */
162	if (has_field->value != wants_field->value)
163	{
164	/* Values don't match, so this half of the comparison is false. */
165	return FALSE;
166	}
167
168	/* If we get here, we found a match. Now for the next field in wants. */
169	}
170		154
171	/* 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. */
172	return TRUE;	156	return true;
173	}	157	}
174		158
175	/* Returns TRUE if ob1 has the same key_values as ob2. */	159	/* Returns TRUE if ob1 has the same key_values as ob2. */
176	static int	160	static bool
177	compare_ob_value_lists (const object *ob1, const object *ob2)	161	compare_ob_value_lists (const object *ob1, const object *ob2)
178	{	162	{
179	/* 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,
180	* so we need to run the comparison *twice*. :(	164	* so we need to run the comparison *twice*. :(
181	*/	165	*/
182	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);
183	}	168	}
184		169
185	/* 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
186	* they can be merged together.	171	* they can be merged together.
187	*	172	*
…		…
202	|| ob1->speed != ob2->speed	187	|| ob1->speed != ob2->speed
203	|| ob1->value != ob2->value	188	|| ob1->value != ob2->value
204	|| ob1->name != ob2->name)	189	|| ob1->name != ob2->name)
205	return 0;	190	return 0;
206		191
207	//TODO: this ain't working well, use nicer and correct overflow check
208	/* Do not merge objects if nrof would overflow. We use 1UL<<31 since that	192	/* Do not merge objects if nrof would overflow, assume nrof
209	* value could not be stored in a sint32 (which unfortunately sometimes is	193	* is always 0 .. 2**31-1 */
210	* used to store nrof).	194	if (ob1->nrof > 0x7fffffff - ob2->nrof)
211	*/
212	if (ob1->nrof + ob2->nrof >= 1UL << 31)
213	return 0;	195	return 0;
214		196
215	/* If the objects have been identified, set the BEEN_APPLIED flag.	197	/* If the objects have been identified, set the BEEN_APPLIED flag.
216	* 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
217	* 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
218	* 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
219	* flags lose any meaning.	201	* flags lose any meaning.
220	*/	202	*/
221	if (QUERY_FLAG (ob1, FLAG_IDENTIFIED))	203	if (QUERY_FLAG (ob1, FLAG_IDENTIFIED))
222	SET_FLAG (ob1, FLAG_BEEN_APPLIED);	204	SET_FLAG (ob1, FLAG_BEEN_APPLIED);
223		205
224	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))	206	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))
225	SET_FLAG (ob2, FLAG_BEEN_APPLIED);	207	SET_FLAG (ob2, FLAG_BEEN_APPLIED);
226		208
227	if ((ob1->flag ^ ob2->flag).reset (FLAG_INV_LOCKED).reset (FLAG_CLIENT_SENT).any ()	209	if (ob1->arch->archname != ob2->arch->archname
228	|| ob1->arch != ob2->arch
229	|| ob1->name != ob2->name	210	|| ob1->name != ob2->name
230	|| ob1->title != ob2->title	211	|| ob1->title != ob2->title
231	|| ob1->msg != ob2->msg	212	|| ob1->msg != ob2->msg
232	|| ob1->weight != ob2->weight	213	|| ob1->weight != ob2->weight
233	|| memcmp (&ob1->resist, &ob2->resist, sizeof (ob1->resist))
234	|| memcmp (&ob1->stats , &ob2->stats , sizeof (ob1->stats) )
235	|| ob1->attacktype != ob2->attacktype	214	|| ob1->attacktype != ob2->attacktype
236	|| ob1->magic != ob2->magic	215	|| ob1->magic != ob2->magic
237	|| ob1->slaying != ob2->slaying	216	|| ob1->slaying != ob2->slaying
238	|| ob1->skill != ob2->skill	217	|| ob1->skill != ob2->skill
239	|| ob1->value != ob2->value	218	|| ob1->value != ob2->value
240	|| 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
241	|| ob1->client_type != ob2->client_type	221	|| ob1->client_type != ob2->client_type
242	|| ob1->materialname != ob2->materialname	222	|| ob1->materialname != ob2->materialname
243	|| ob1->lore != ob2->lore	223	|| ob1->lore != ob2->lore
244	|| ob1->subtype != ob2->subtype	224	|| ob1->subtype != ob2->subtype
245	|| ob1->move_type != ob2->move_type	225	|| ob1->move_type != ob2->move_type
246	|| ob1->move_block != ob2->move_block	226	|| ob1->move_block != ob2->move_block
247	|| ob1->move_allow != ob2->move_allow	227	|| ob1->move_allow != ob2->move_allow
248	|| ob1->move_on != ob2->move_on	228	|| ob1->move_on != ob2->move_on
249	|| ob1->move_off != ob2->move_off	229	|| ob1->move_off != ob2->move_off
250	|| ob1->move_slow != ob2->move_slow	230	|| ob1->move_slow != ob2->move_slow
251	|| ob1->move_slow_penalty != ob2->move_slow_penalty)	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)))
252	return 0;	234	return 0;
253		235
		236	if ((ob1->flag ^ ob2->flag)
		237	.reset (FLAG_INV_LOCKED)
		238	.reset (FLAG_REMOVED)
		239	.any ())
		240	return 0;
		241
254	/* This is really a spellbook check - really, we should	242	/* This is really a spellbook check - we should in general
255	* check all objects in the inventory.	243	* not merge objects with real inventories, as splitting them
		244	* is hard.
256	*/	245	*/
257	if (ob1->inv || ob2->inv)	246	if (ob1->inv || ob2->inv)
258	{	247	{
259	/* if one object has inventory but the other doesn't, not equiv */	248	if (!(ob1->inv && ob2->inv))
260	if ((ob1->inv && !ob2->inv) || (ob2->inv && !ob1->inv))	249	return 0; /* inventories differ in length */
261	return 0;
262		250
263	/* Now check to see if the two inventory objects could merge */	251	if (ob1->inv->below || ob2->inv->below)
		252	return 0; /* more than one object in inv */
		253
264	if (!object::can_merge (ob1->inv, ob2->inv))	254	if (!object::can_merge (ob1->inv, ob2->inv))
265	return 0;	255	return 0; /* inventory objects differ */
266		256
267	/* 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
268	* if it is valid.	258	* if it is valid.
269	*/	259	*/
270	}	260	}
…		…
289	if (ob1->level != ob2->level)	279	if (ob1->level != ob2->level)
290	return 0;	280	return 0;
291	break;	281	break;
292	}	282	}
293		283
294	if (ob1->key_values != NULL || ob2->key_values != NULL)	284	if (ob1->key_values || ob2->key_values)
295	{	285	{
296	/* At least one of these has key_values. */	286	/* At least one of these has key_values. */
297	if ((ob1->key_values == NULL) != (ob2->key_values == NULL))	287	if ((!ob1->key_values) != (!ob2->key_values))
298	/* 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))
299	return 0;	291	return 0;
300	else if (!compare_ob_value_lists (ob1, ob2))
301	return 0;
302	}	292	}
303		293
304	//TODO: generate an event or call into perl for additional checks
305	if (ob1->self || ob2->self)	294	if (ob1->self || ob2->self)
306	{	295	{
307	ob1->optimise ();	296	ob1->optimise ();
308	ob2->optimise ();	297	ob2->optimise ();
309		298
310	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)
311	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	}
312	}	313	}
313		314
314	/* Everything passes, must be OK. */	315	/* Everything passes, must be OK. */
315	return 1;	316	return 1;
316	}	317	}
317		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
318	/*	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	/*
319	* sum_weight() is a recursive function which calculates the weight	393	* this is a recursive function which calculates the weight
320	* 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
321	* containers are carrying, and sums it up.	395	* containers are carrying, and sums it up.
322	*/	396	*/
323	long	397	void
324	sum_weight (object *op)	398	object::update_weight ()
325	{	399	{
326	long sum;	400	sint32 sum = 0;
327	object *inv;
328		401
329	for (sum = 0, inv = op->inv; inv != NULL; inv = inv->below)	402	for (object *op = inv; op; op = op->below)
330	{	403	{
331	if (inv->inv)	404	if (op->inv)
332	sum_weight (inv);	405	op->update_weight ();
333	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)
334	}	413	{
335
336	if (op->type == CONTAINER && op->stats.Str)
337	sum = (sum * (100 - op->stats.Str)) / 100;
338
339	if (op->carrying != sum)
340	op->carrying = sum;	414	carrying = sum;
341		415
342	return sum;	416	if (object *pl = visible_to ())
		417	if (pl != this) // player is handled lazily
		418	esrv_update_item (UPD_WEIGHT, pl, this);
		419	}
343	}	420	}
344		421
345	/**	422	/*
346	* Return the outermost environment object for a given object.	423	* Used by: Server DM commands: dumpbelow, dump. Some error messages.
347	*/	424	*/
348
349	object *
350	object_get_env_recursive (object *op)
351	{
352	while (op->env != NULL)
353	op = op->env;
354	return op;
355	}
356
357	/*
358	* Used by: Crossedit: dump. Server DM commands: dumpbelow, dump.
359	* Some error messages.
360	* The result of the dump is stored in the static global errmsg array.
361	*/
362
363	char *	425	char *
364	dump_object (object *op)	426	dump_object (object *op)
365	{	427	{
366	if (!op)	428	if (!op)
367	return strdup ("[NULLOBJ]");	429	return strdup ("[NULLOBJ]");
368		430
369	object_freezer freezer;	431	object_freezer freezer;
370	save_object (freezer, op, 1);	432	op->write (freezer);
371	return freezer.as_string ();	433	return freezer.as_string ();
372	}	434	}
373		435
374	/*	436	/*
375	* 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
376	* multi-object 1 which is closest to the second object.	438	* multi-object 1 which is closest to the second object.
377	* If it's not a multi-object, it is returned.	439	* If it's not a multi-object, it is returned.
378	*/	440	*/
379
380	object *	441	object *
381	get_nearest_part (object *op, const object *pl)	442	get_nearest_part (object *op, const object *pl)
382	{	443	{
383	object *tmp, *closest;	444	object *tmp, *closest;
384	int last_dist, i;	445	int last_dist, i;
385		446
386	if (op->more == NULL)	447	if (!op->more)
387	return op;	448	return op;
		449
388	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)
389	if ((i = distance (tmp, pl)) < last_dist)	453	if ((i = distance (tmp, pl)) < last_dist)
390	closest = tmp, last_dist = i;	454	closest = tmp, last_dist = i;
		455
391	return closest;	456	return closest;
392	}	457	}
393		458
394	/*	459	/*
395	* 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.
396	*/	462	*/
397	object *	463	object *
398	find_object (tag_t i)	464	find_object (tag_t i)
399	{	465	{
400	return ((unsigned int)i) < objects.size ()	466	for_all_objects (op)
401	? objects [i]	467	if (op->count == i)
402	: 0;	468	return op;
		469
		470	return 0;
403	}	471	}
404		472
405	/*	473	/*
406	* 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.
407	* Used only by the patch command, but not all that useful.	475	* Used only by the patch command, but not all that useful.
…		…
409	*/	477	*/
410	object *	478	object *
411	find_object_name (const char *str)	479	find_object_name (const char *str)
412	{	480	{
413	shstr_cmp str_ (str);	481	shstr_cmp str_ (str);
414	object *op;
415		482
		483	if (str_)
416	for_all_objects (op)	484	for_all_objects (op)
417	if (op->name == str_)	485	if (op->name == str_)
418	break;	486	return op;
419		487
420	return op;	488	return 0;
421	}
422
423	void
424	free_all_object_data ()
425	{
426	LOG (llevDebug, "%d allocated objects\n", nrofallocobjects);
427	}	489	}
428		490
429	/*	491	/*
430	* 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
431	* skill and experience objects.	493	* skill and experience objects.
		494	* ACTUALLY NO! investigate! TODO
432	*/	495	*/
433	void	496	void
434	object::set_owner (object *owner)	497	object::set_owner (object *owner)
435	{	498	{
		499	// allow objects which own objects
436	if (!owner)	500	if (owner)
437	return;
438
439	/* next line added to allow objects which own objects */
440	/* Add a check for ownercounts in here, as I got into an endless loop
441	* with the fireball owning a poison cloud which then owned the
442	* fireball. I believe that was caused by one of the objects getting
443	* freed and then another object replacing it. Since the ownercounts
444	* didn't match, this check is valid and I believe that cause is valid.
445	*/
446	while (owner->owner)	501	while (owner->owner)
447	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	}
448		509
449	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.]", &ob->name);
		561	return false;
		562	}
		563
		564	//new_draw_info_format (NDI_UNIQUE, 0, this, "You switch to your %s.", &ob->name);
		565	}
		566	else
		567	;//new_draw_info_format (NDI_UNIQUE, 0, this, "You unwield your weapons.");
		568
		569	if (ob && !ob->flag [FLAG_APPLIED] && ob->type != SPELL)
		570	{
		571	LOG (llevError | logBacktrace, "%s changed to unapplied weapon %s",
		572	&name, ob->debug_desc ());
		573	return false;
		574	}
		575
		576	return true;
450	}	577	}
451		578
452	/* Zero the key_values on op, decrementing the shared-string	579	/* Zero the key_values on op, decrementing the shared-string
453	* refcounts and freeing the links.	580	* refcounts and freeing the links.
454	*/	581	*/
455	static void	582	static void
456	free_key_values (object *op)	583	free_key_values (object *op)
457	{	584	{
458	for (key_value *i = op->key_values; i != 0;)	585	for (key_value *i = op->key_values; i; )
459	{	586	{
460	key_value *next = i->next;	587	key_value *next = i->next;
461	delete i;	588	delete i;
462		589
463	i = next;	590	i = next;
…		…
475	* will point at garbage.	602	* will point at garbage.
476	*/	603	*/
477	void	604	void
478	object::copy_to (object *dst)	605	object::copy_to (object *dst)
479	{	606	{
480	bool is_freed = QUERY_FLAG (dst, FLAG_FREED);	607	dst->remove ();
481	bool is_removed = QUERY_FLAG (dst, FLAG_REMOVED);
482
483	*(object_copy *)dst = *this;	608	*(object_copy *)dst = *this;
484		609	dst->flag [FLAG_REMOVED] = true;
485	if (is_freed)
486	SET_FLAG (dst, FLAG_FREED);
487
488	if (is_removed)
489	SET_FLAG (dst, FLAG_REMOVED);
490
491	if (speed < 0)
492	dst->speed_left = speed_left - RANDOM () % 200 / 100.0;
493		610
494	/* Copy over key_values, if any. */	611	/* Copy over key_values, if any. */
495	if (key_values)	612	if (key_values)
496	{	613	{
497	key_value *tail = 0;	614	key_value *tail = 0;
498	key_value *i;
499
500	dst->key_values = 0;	615	dst->key_values = 0;
501		616
502	for (i = key_values; i; i = i->next)	617	for (key_value *i = key_values; i; i = i->next)
503	{	618	{
504	key_value *new_link = new key_value;	619	key_value *new_link = new key_value;
505		620
506	new_link->next = 0;	621	new_link->next = 0;
507	new_link->key = i->key;	622	new_link->key = i->key;
508	new_link->value = i->value;	623	new_link->value = i->value;
509		624
510	/* Try and be clever here, too. */	625	/* Try and be clever here, too. */
511	if (!dst->key_values)	626	if (!dst->key_values)
512	{	627	{
…		…
519	tail = new_link;	634	tail = new_link;
520	}	635	}
521	}	636	}
522	}	637	}
523		638
524	dst->set_speed (dst->speed);	639	if (speed < 0)
		640	dst->speed_left -= rndm ();
		641
		642	dst->activate ();
		643	}
		644
		645	void
		646	object::instantiate ()
		647	{
		648	if (!uuid.seq) // HACK
		649	uuid = UUID::gen ();
		650
		651	speed_left = -0.1f;
		652	/* copy the body_info to the body_used - this is only really
		653	* need for monsters, but doesn't hurt to do it for everything.
		654	* by doing so, when a monster is created, it has good starting
		655	* values for the body_used info, so when items are created
		656	* for it, they can be properly equipped.
		657	*/
		658	for (int i = NUM_BODY_LOCATIONS; i--; )
		659	slot[i].used = slot[i].info;
		660
		661	attachable::instantiate ();
525	}	662	}
526		663
527	object *	664	object *
528	object::clone ()	665	object::clone ()
529	{	666	{
530	object *neu = create ();	667	object *neu = create ();
531	copy_to (neu);	668	copy_to (neu);
		669	neu->map = map; // not copied by copy_to
532	return neu;	670	return neu;
533	}	671	}
534		672
535	/*	673	/*
536	* If an object with the IS_TURNABLE() flag needs to be turned due	674	* If an object with the IS_TURNABLE() flag needs to be turned due
…		…
587	* UP_OBJ_FACE: only the objects face has changed.	725	* UP_OBJ_FACE: only the objects face has changed.
588	*/	726	*/
589	void	727	void
590	update_object (object *op, int action)	728	update_object (object *op, int action)
591	{	729	{
592	MoveType move_on, move_off, move_block, move_slow;	730	if (!op)
593
594	if (op == NULL)
595	{	731	{
596	/* this should never happen */	732	/* this should never happen */
597	LOG (llevDebug, "update_object() called for NULL object.\n");	733	LOG (llevError | logBacktrace, "update_object() called for NULL object.\n");
598	return;	734	return;
599	}	735	}
600		736
601	if (op->env)	737	if (!op->is_on_map ())
602	{	738	{
603	/* Animation is currently handled by client, so nothing	739	/* Animation is currently handled by client, so nothing
604	* to do in this case.	740	* to do in this case.
605	*/	741	*/
606	return;	742	return;
607	}	743	}
608
609	/* If the map is saving, don't do anything as everything is
610	* going to get freed anyways.
611	*/
612	if (!op->map || op->map->in_memory == MAP_SAVING)
613	return;
614		744
615	/* make sure the object is within map boundaries */	745	/* make sure the object is within map boundaries */
616	if (op->x < 0 || op->x >= op->map->width || op->y < 0 || op->y >= op->map->height)	746	if (op->x < 0 || op->x >= op->map->width || op->y < 0 || op->y >= op->map->height)
617	{	747	{
618	LOG (llevError, "update_object() called for object out of map!\n");	748	LOG (llevError, "update_object() called for object out of map!\n");
…		…
629	else if (action == UP_OBJ_INSERT)	759	else if (action == UP_OBJ_INSERT)
630	{	760	{
631	// this is likely overkill, TODO: revisit (schmorp)	761	// this is likely overkill, TODO: revisit (schmorp)
632	if ((QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(m.flags_ & P_BLOCKSVIEW))	762	if ((QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(m.flags_ & P_BLOCKSVIEW))
633	|| (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(m.flags_ & P_NO_MAGIC))	763	|| (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(m.flags_ & P_NO_MAGIC))
634	|| (op->type == PLAYER && !(m.flags_ & P_PLAYER))	764	|| (op->is_player () && !(m.flags_ & P_PLAYER))
635	|| (op->type == SAFE_GROUND && !(m.flags_ & P_SAFE))	765	|| (op->type == SAFE_GROUND && !(m.flags_ & P_SAFE))
636	|| (QUERY_FLAG (op, FLAG_ALIVE) && !(m.flags_ & P_IS_ALIVE))	766	|| (QUERY_FLAG (op, FLAG_ALIVE) && !(m.flags_ & P_IS_ALIVE))
637	|| (QUERY_FLAG (op, FLAG_DAMNED) && !(m.flags_ & P_NO_CLERIC))	767	|| (QUERY_FLAG (op, FLAG_DAMNED) && !(m.flags_ & P_NO_CLERIC))
638	|| (m.move_on | op->move_on ) != m.move_on	768	|| (m.move_on | op->move_on ) != m.move_on
639	|| (m.move_off | op->move_off ) != m.move_off	769	|| (m.move_off | op->move_off ) != m.move_off
640	|| (m.move_slow | op->move_slow) != m.move_slow	770	|| (m.move_slow | op->move_slow) != m.move_slow
641	/* This isn't perfect, but I don't expect a lot of objects to	771	/* This isn't perfect, but I don't expect a lot of objects to
642	* to have move_allow right now.	772	* have move_allow right now.
643	*/	773	*/
644	|| ((m.move_block | op->move_block) & ~op->move_allow) != m.move_block	774	|| ((m.move_block | op->move_block) & ~op->move_allow) != m.move_block
645	|| 1) // the above is not strong enough a test to skip updating. los maybe? TODO (Schmorp)	775	|| 1) // the above is not strong enough a test to skip updating. los maybe? TODO (Schmorp)
646	m.flags_ = 0;	776	m.invalidate ();
647	}	777	}
648	/* if the object is being removed, we can't make intelligent	778	/* if the object is being removed, we can't make intelligent
649	* decisions, because remove_ob can't really pass the object	779	* decisions, because remove_ob can't really pass the object
650	* that is being removed.	780	* that is being removed.
651	*/	781	*/
652	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)	782	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)
653	m.flags_ = 0;	783	m.invalidate ();
654	else if (action == UP_OBJ_FACE)	784	else if (action == UP_OBJ_FACE)
655	/* Nothing to do for that case */ ;	785	/* Nothing to do for that case */ ;
656	else	786	else
657	LOG (llevError, "update_object called with invalid action: %d\n", action);	787	LOG (llevError, "update_object called with invalid action: %d\n", action);
658		788
659	if (op->more)	789	if (op->more)
660	update_object (op->more, action);	790	update_object (op->more, action);
661	}	791	}
662		792
663	object *object::first;
664
665	object::object ()	793	object::object ()
666	{	794	{
667	SET_FLAG (this, FLAG_REMOVED);	795	SET_FLAG (this, FLAG_REMOVED);
668		796
669	expmul = 1.0;	797	//expmul = 1.0; declared const for the time being
670	face = blank_face;	798	face = blank_face;
671	}	799	}
672		800
673	object::~object ()	801	object::~object ()
674	{	802	{
		803	unlink ();
		804
675	free_key_values (this);	805	free_key_values (this);
676	}	806	}
677		807
		808	static int object_count;
		809
678	void object::link ()	810	void object::link ()
679	{	811	{
680	uuid = gen_uuid ();	812	assert (!index);//D
		813	uuid = UUID::gen ();
		814	count = ++object_count;
681		815
682	refcnt_inc ();	816	refcnt_inc ();
683	objects.insert (this);	817	objects.insert (this);
684	}	818	}
685		819
686	void object::unlink ()	820	void object::unlink ()
687	{	821	{
		822	if (!index)
		823	return;
		824
688	objects.erase (this);	825	objects.erase (this);
689	refcnt_dec ();	826	refcnt_dec ();
690	}	827	}
691		828
692	void	829	void
…		…
695	/* If already on active list, don't do anything */	832	/* If already on active list, don't do anything */
696	if (active)	833	if (active)
697	return;	834	return;
698		835
699	if (has_active_speed ())	836	if (has_active_speed ())
		837	{
		838	if (flag [FLAG_FREED])
		839	LOG (llevError | logBacktrace, "BUG: tried to activate freed object %s\n", debug_desc ());//D
		840
700	actives.insert (this);	841	actives.insert (this);
		842	}
701	}	843	}
702		844
703	void	845	void
704	object::activate_recursive ()	846	object::activate_recursive ()
705	{	847	{
…		…
754	object::destroy_inv (bool drop_to_ground)	896	object::destroy_inv (bool drop_to_ground)
755	{	897	{
756	// need to check first, because the checks below might segfault	898	// need to check first, because the checks below might segfault
757	// as we might be on an invalid mapspace and crossfire code	899	// as we might be on an invalid mapspace and crossfire code
758	// is too buggy to ensure that the inventory is empty.	900	// is too buggy to ensure that the inventory is empty.
759	// corollary: if you create arrows etc. with stuff in tis inventory,	901	// corollary: if you create arrows etc. with stuff in its inventory,
760	// cf will crash below with off-map x and y	902	// cf will crash below with off-map x and y
761	if (!inv)	903	if (!inv)
762	return;	904	return;
763		905
764	/* Only if the space blocks everything do we not process -	906	/* Only if the space blocks everything do we not process -
765	* if some form of movement is allowed, let objects	907	* if some form of movement is allowed, let objects
766	* drop on that space.	908	* drop on that space.
767	*/	909	*/
768	if (!drop_to_ground	910	if (!drop_to_ground
769	|| !map	911	|| !map
770	|| map->in_memory != MAP_IN_MEMORY	912	|| map->in_memory != MAP_ACTIVE
		913	|| map->no_drop
771	|| ms ().move_block == MOVE_ALL)	914	|| ms ().move_block == MOVE_ALL)
772	{	915	{
773	while (inv)	916	while (inv)
774	{
775	inv->destroy_inv (drop_to_ground);
776	inv->destroy ();	917	inv->destroy ();
777	}
778	}	918	}
779	else	919	else
780	{ /* Put objects in inventory onto this space */	920	{ /* Put objects in inventory onto this space */
781	while (inv)	921	while (inv)
782	{	922	{
…		…
800	object *op = new object;	940	object *op = new object;
801	op->link ();	941	op->link ();
802	return op;	942	return op;
803	}	943	}
804		944
		945	static struct freed_map : maptile
		946	{
		947	freed_map ()
		948	{
		949	path = "<freed objects map>";
		950	name = "/internal/freed_objects_map";
		951	width = 3;
		952	height = 3;
		953	no_drop = 1;
		954	no_reset = 1;
		955
		956	alloc ();
		957	in_memory = MAP_ACTIVE;
		958	}
		959
		960	~freed_map ()
		961	{
		962	destroy ();
		963	}
		964	} freed_map; // freed objects are moved here to avoid crashes
		965
805	void	966	void
806	object::do_destroy ()	967	object::do_destroy ()
807	{	968	{
808	if (flag [FLAG_IS_LINKED])	969	if (flag [FLAG_IS_LINKED])
809	remove_button_link (this);	970	remove_link ();
810		971
811	if (flag [FLAG_FRIENDLY])	972	if (flag [FLAG_FRIENDLY])
812	remove_friendly_object (this);	973	remove_friendly_object (this);
813		974
814	if (!flag [FLAG_REMOVED])
815	remove ();	975	remove ();
816		976
817	if (flag [FLAG_FREED])	977	attachable::do_destroy ();
818	return;
819		978
820	set_speed (0);	979	deactivate ();
		980	unlink ();
821		981
822	flag [FLAG_FREED] = 1;	982	flag [FLAG_FREED] = 1;
823		983
824	attachable::do_destroy ();
825
826	destroy_inv (true);
827	unlink ();
828
829	// hack to ensure that freed objects still have a valid map	984	// hack to ensure that freed objects still have a valid map
830	{
831	static maptile *freed_map; // freed objects are moved here to avoid crashes
832
833	if (!freed_map)
834	{
835	freed_map = new maptile;
836
837	freed_map->name = "/internal/freed_objects_map";
838	freed_map->width = 3;
839	freed_map->height = 3;
840
841	freed_map->alloc ();
842	freed_map->in_memory = MAP_IN_MEMORY;
843	}
844
845	map = freed_map;	985	map = &freed_map;
846	x = 1;	986	x = 1;
847	y = 1;	987	y = 1;
848	}
849
850	head = 0;
851		988
852	if (more)	989	if (more)
853	{	990	{
854	more->destroy ();	991	more->destroy ();
855	more = 0;	992	more = 0;
856	}	993	}
857		994
		995	head = 0;
		996
858	// clear those pointers that likely might have circular references to us	997	// clear those pointers that likely might cause circular references
859	owner = 0;	998	owner = 0;
860	enemy = 0;	999	enemy = 0;
861	attacked_by = 0;	1000	attacked_by = 0;
		1001	current_weapon = 0;
862	}	1002	}
863		1003
864	void	1004	void
865	object::destroy (bool destroy_inventory)	1005	object::destroy ()
866	{	1006	{
867	if (destroyed ())	1007	if (destroyed ())
868	return;	1008	return;
869		1009
870	if (destroy_inventory)	1010	if (!is_head () && !head->destroyed ())
		1011	{
		1012	LOG (llevError | logBacktrace, "tried to destroy the tail of an object");
		1013	head->destroy ();
		1014	return;
		1015	}
		1016
871	destroy_inv (false);	1017	destroy_inv (false);
		1018
		1019	if (is_head ())
		1020	if (sound_destroy)
		1021	play_sound (sound_destroy);
		1022	else if (flag [FLAG_MONSTER])
		1023	play_sound (sound_find ("monster_destroy")); // quick hack, too lazy to create a generic mechanism
872		1024
873	attachable::destroy ();	1025	attachable::destroy ();
874	}
875
876	/*
877	* sub_weight() recursively (outwards) subtracts a number from the
878	* weight of an object (and what is carried by it's environment(s)).
879	*/
880	void
881	sub_weight (object *op, signed long weight)
882	{
883	while (op != NULL)
884	{
885	if (op->type == CONTAINER)
886	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
887
888	op->carrying -= weight;
889	op = op->env;
890	}
891	}	1026	}
892		1027
893	/* op->remove ():	1028	/* op->remove ():
894	* This function removes the object op from the linked list of objects	1029	* This function removes the object op from the linked list of objects
895	* which it is currently tied to. When this function is done, the	1030	* which it is currently tied to. When this function is done, the
896	* object will have no environment. If the object previously had an	1031	* object will have no environment. If the object previously had an
897	* environment, the x and y coordinates will be updated to	1032	* environment, the x and y coordinates will be updated to
898	* the previous environment.	1033	* the previous environment.
899	* Beware: This function is called from the editor as well!
900	*/	1034	*/
901	void	1035	void
902	object::remove ()	1036	object::do_remove ()
903	{	1037	{
904	object *tmp, *last = 0;	1038	object *tmp, *last = 0;
905	object *otmp;	1039	object *otmp;
906		1040
907	if (QUERY_FLAG (this, FLAG_REMOVED))	1041	if (flag [FLAG_REMOVED])
908	return;	1042	return;
909		1043
910	SET_FLAG (this, FLAG_REMOVED);
911	INVOKE_OBJECT (REMOVE, this);	1044	INVOKE_OBJECT (REMOVE, this);
		1045
		1046	flag [FLAG_REMOVED] = true;
912		1047
913	if (more)	1048	if (more)
914	more->remove ();	1049	more->remove ();
915		1050
916	/*	1051	/*
917	* In this case, the object to be removed is in someones	1052	* In this case, the object to be removed is in someones
918	* inventory.	1053	* inventory.
919	*/	1054	*/
920	if (env)	1055	if (env)
921	{	1056	{
922	if (nrof)	1057	flag [FLAG_REMOVED] = false; // hack around the issue of visible_to checking flag_removed
923	sub_weight (env, weight * nrof);	1058	if (object *pl = visible_to ())
924	else	1059	esrv_del_item (pl->contr, count);
925	sub_weight (env, weight + carrying);	1060	flag [FLAG_REMOVED] = true; // hack around the issue of visible_to checking flag_removed
		1061
		1062	adjust_weight (env, -total_weight ());
		1063
		1064	object *pl = in_player ();
		1065
		1066	/* we set up values so that it could be inserted into
		1067	* the map, but we don't actually do that - it is up
		1068	* to the caller to decide what we want to do.
		1069	*/
		1070	map = env->map;
		1071	x = env->x;
		1072	y = env->y;
		1073
		1074	// make sure cmov optimisation is applicable
		1075	*(above ? &above->below : &env->inv) = below;
		1076	*(below ? &below->above : &above ) = above; // &above is just a dummy
		1077
		1078	above = 0;
		1079	below = 0;
		1080	env = 0;
926		1081
927	/* NO_FIX_PLAYER is set when a great many changes are being	1082	/* NO_FIX_PLAYER is set when a great many changes are being
928	* made to players inventory. If set, avoiding the call	1083	* made to players inventory. If set, avoiding the call
929	* to save cpu time.	1084	* to save cpu time.
930	*/	1085	*/
931	if ((otmp = in_player ()) && otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))	1086	if (pl)
		1087	if (pl->is_player () && (glow_radius || !QUERY_FLAG (pl, FLAG_NO_FIX_PLAYER)))
		1088	{
932	otmp->update_stats ();	1089	pl->update_stats ();
933		1090
934	if (above)	1091	if (glow_radius && pl->is_on_map ())
935	above->below = below;	1092	update_all_los (pl->map, pl->x, pl->y);
936	else	1093	}
937	env->inv = below;
938
939	if (below)
940	below->above = above;
941
942	/* we set up values so that it could be inserted into
943	* the map, but we don't actually do that - it is up
944	* to the caller to decide what we want to do.
945	*/
946	x = env->x, y = env->y;
947	map = env->map;
948	above = 0, below = 0;
949	env = 0;
950	}	1094	}
951	else if (map)	1095	else if (map)
952	{	1096	{
953	if (type == PLAYER)	1097	map->dirty = true;
		1098	mapspace &ms = this->ms ();
		1099
		1100	if (object *pl = ms.player ())
954	{	1101	{
		1102	if (is_player ())
		1103	{
		1104	if (!flag [FLAG_WIZPASS])
		1105	ms.smell = ++mapspace::smellcount; // remember the smell of the player
		1106
		1107	// leaving a spot always closes any open container on the ground
		1108	if (container && !container->env)
		1109	// this causes spurious floorbox updates, but it ensures
		1110	// that the CLOSE event is being sent.
		1111	close_container ();
		1112
955	--map->players;	1113	--map->players;
956	map->touch ();	1114	map->touch ();
		1115	}
		1116	else if (pl->container == this)
		1117	{
		1118	// removing a container should close it
		1119	close_container ();
		1120	}
		1121
		1122	esrv_del_item (pl->contr, count);
957	}	1123	}
958		1124
959	map->dirty = true;
960
961	/* link the object above us */	1125	/* link the object above us */
962	if (above)	1126	// re-link, make sure compiler can easily use cmove
963	above->below = below;	1127	*(above ? &above->below : &ms.top) = below;
964	else	1128	*(below ? &below->above : &ms.bot) = above;
965	map->at (x, y).top = below; /* we were top, set new top */
966
967	/* Relink the object below us, if there is one */
968	if (below)
969	below->above = above;
970	else
971	{
972	/* Nothing below, which means we need to relink map object for this space
973	* use translated coordinates in case some oddness with map tiling is
974	* evident
975	*/
976	if (GET_MAP_OB (map, x, y) != this)
977	{
978	char *dump = dump_object (this);
979	LOG (llevError,
980	"remove_ob: GET_MAP_OB does not return object to be removed even though it appears to be on the bottom?\n%s\n", dump);
981	free (dump);
982	dump = dump_object (GET_MAP_OB (map, x, y));
983	LOG (llevError, "%s\n", dump);
984	free (dump);
985	}
986
987	map->at (x, y).bot = above; /* goes on above it. */
988	}
989		1129
990	above = 0;	1130	above = 0;
991	below = 0;	1131	below = 0;
992		1132
		1133	ms.invalidate ();
		1134
993	if (map->in_memory == MAP_SAVING)	1135	if (map->in_memory == MAP_SAVING)
994	return;	1136	return;
995		1137
996	int check_walk_off = !flag [FLAG_NO_APPLY];	1138	int check_walk_off = !flag [FLAG_NO_APPLY];
997		1139
		1140	if (object *pl = ms.player ())
		1141	{
		1142	if (pl->container == this)
		1143	/* If a container that the player is currently using somehow gets
		1144	* removed (most likely destroyed), update the player view
		1145	* appropriately.
		1146	*/
		1147	pl->close_container ();
		1148
		1149	//TODO: the floorbox prev/next might need updating
		1150	//esrv_del_item (pl->contr, count);
		1151	//TODO: update floorbox to preserve ordering
		1152	if (pl->contr->ns)
		1153	pl->contr->ns->floorbox_update ();
		1154	}
		1155
998	for (tmp = map->at (x, y).bot; tmp; tmp = tmp->above)	1156	for (tmp = ms.bot; tmp; tmp = tmp->above)
999	{	1157	{
1000	/* No point updating the players look faces if he is the object	1158	/* No point updating the players look faces if he is the object
1001	* being removed.	1159	* being removed.
1002	*/	1160	*/
1003
1004	if (tmp->type == PLAYER && tmp != this)
1005	{
1006	/* If a container that the player is currently using somehow gets
1007	* removed (most likely destroyed), update the player view
1008	* appropriately.
1009	*/
1010	if (tmp->container == this)
1011	{
1012	flag [FLAG_APPLIED] = 0;
1013	tmp->container = 0;
1014	}
1015
1016	if (tmp->contr->ns)
1017	tmp->contr->ns->floorbox_update ();
1018	}
1019		1161
1020	/* See if object moving off should effect something */	1162	/* See if object moving off should effect something */
1021	if (check_walk_off	1163	if (check_walk_off
1022	&& ((move_type & tmp->move_off)	1164	&& ((move_type & tmp->move_off)
1023	&& (move_type & ~tmp->move_off & ~tmp->move_block) == 0))	1165	&& (move_type & ~tmp->move_off & ~tmp->move_block) == 0))
…		…
1026		1168
1027	if (destroyed ())	1169	if (destroyed ())
1028	LOG (llevError, "BUG: remove_ob(): name %s, destroyed leaving object\n", tmp->debug_desc ());	1170	LOG (llevError, "BUG: remove_ob(): name %s, destroyed leaving object\n", tmp->debug_desc ());
1029	}	1171	}
1030		1172
1031	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */
1032	//TODO: why is this horrible hacka fix? get rid of this code=bug! (schmorp)
1033	if (tmp->above == tmp)
1034	tmp->above = 0;
1035
1036	last = tmp;	1173	last = tmp;
1037	}	1174	}
1038		1175
1039	/* last == NULL if there are no objects on this space */	1176	if (affects_los ())
1040	//TODO: this makes little sense, why only update the topmost object?
1041	if (!last)
1042	map->at (x, y).flags_ = 0;
1043	else
1044	update_object (last, UP_OBJ_REMOVE);
1045
1046	if (flag [FLAG_BLOCKSVIEW] || glow_radius)
1047	update_all_los (map, x, y);	1177	update_all_los (map, x, y);
1048	}	1178	}
1049	}	1179	}
1050		1180
1051	/*	1181	/*
…		…
1060	merge_ob (object *op, object *top)	1190	merge_ob (object *op, object *top)
1061	{	1191	{
1062	if (!op->nrof)	1192	if (!op->nrof)
1063	return 0;	1193	return 0;
1064		1194
1065	if (top)	1195	if (!top)
1066	for (top = op; top && top->above; top = top->above)	1196	for (top = op; top && top->above; top = top->above)
1067	;	1197	;
1068		1198
1069	for (; top; top = top->below)	1199	for (; top; top = top->below)
1070	{
1071	if (top == op)
1072	continue;
1073
1074	if (object::can_merge (op, top))	1200	if (object::can_merge (op, top))
1075	{	1201	{
1076	top->nrof += op->nrof;	1202	top->nrof += op->nrof;
1077		1203
1078	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/	1204	if (object *pl = top->visible_to ())
1079	op->weight = 0; /* Don't want any adjustements now */	1205	esrv_update_item (UPD_NROF, pl, top);
		1206
		1207	op->weight = 0; // cancel the addition above
		1208	op->carrying = 0; // must be 0 already
		1209
1080	op->destroy ();	1210	op->destroy ();
		1211
1081	return top;	1212	return top;
1082	}	1213	}
1083	}
1084		1214
1085	return 0;	1215	return 0;
1086	}	1216	}
1087		1217
		1218	void
		1219	object::expand_tail ()
		1220	{
		1221	if (more)
		1222	return;
		1223
		1224	object *prev = this;
		1225
		1226	for (archetype *at = (archetype *)arch->more; at; at = (archetype *)at->more)
		1227	{
		1228	object *op = arch_to_object (at);
		1229
		1230	op->name = name;
		1231	op->name_pl = name_pl;
		1232	op->title = title;
		1233
		1234	op->head = this;
		1235	prev->more = op;
		1236
		1237	prev = op;
		1238	}
		1239	}
		1240
1088	/*	1241	/*
1089	* same as insert_ob_in_map except it handle separate coordinates and do a clean	1242	* same as insert_ob_in_map except it handles separate coordinates and does a clean
1090	* job preparing multi-part monsters	1243	* job preparing multi-part monsters.
1091	*/	1244	*/
1092	object *	1245	object *
1093	insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)	1246	insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)
1094	{	1247	{
		1248	op->remove ();
		1249
1095	for (object *tmp = op->head_ (); tmp; tmp = tmp->more)	1250	for (object *tmp = op->head_ (); tmp; tmp = tmp->more)
1096	{	1251	{
1097	tmp->x = x + tmp->arch->clone.x;	1252	tmp->x = x + tmp->arch->x;
1098	tmp->y = y + tmp->arch->clone.y;	1253	tmp->y = y + tmp->arch->y;
1099	}	1254	}
1100		1255
1101	return insert_ob_in_map (op, m, originator, flag);	1256	return insert_ob_in_map (op, m, originator, flag);
1102	}	1257	}
1103		1258
…		…
1122	* just 'op' otherwise	1277	* just 'op' otherwise
1123	*/	1278	*/
1124	object *	1279	object *
1125	insert_ob_in_map (object *op, maptile *m, object *originator, int flag)	1280	insert_ob_in_map (object *op, maptile *m, object *originator, int flag)
1126	{	1281	{
1127	object *tmp, *top, *floor = NULL;	1282	op->remove ();
1128	sint16 x, y;
1129		1283
1130	if (QUERY_FLAG (op, FLAG_FREED))	1284	if (m == &freed_map)//D TODO: remove soon
1131	{	1285	{//D
1132	LOG (llevError, "Trying to insert freed object!\n");	1286	LOG (llevError | logBacktrace, "tries to insret object on freed objects map: %s", op->debug_desc ());//D
1133	return NULL;
1134	}	1287	}//D
1135
1136	if (!m)
1137	{
1138	char *dump = dump_object (op);
1139	LOG (llevError, "Trying to insert in null-map!\n%s\n", dump);
1140	free (dump);
1141	return op;
1142	}
1143
1144	if (out_of_map (m, op->x, op->y))
1145	{
1146	char *dump = dump_object (op);
1147	LOG (llevError, "Trying to insert object outside the map.\n%s\n", dump);
1148	#ifdef MANY_CORES
1149	/* Better to catch this here, as otherwise the next use of this object
1150	* is likely to cause a crash. Better to find out where it is getting
1151	* improperly inserted.
1152	*/
1153	abort ();
1154	#endif
1155	free (dump);
1156	return op;
1157	}
1158
1159	if (!QUERY_FLAG (op, FLAG_REMOVED))
1160	{
1161	char *dump = dump_object (op);
1162	LOG (llevError, "Trying to insert (map) inserted object.\n%s\n", dump);
1163	free (dump);
1164	return op;
1165	}
1166
1167	if (op->more)
1168	{
1169	/* The part may be on a different map. */
1170
1171	object *more = op->more;
1172
1173	/* We really need the caller to normalise coordinates - if
1174	* we set the map, that doesn't work if the location is within
1175	* a map and this is straddling an edge. So only if coordinate
1176	* is clear wrong do we normalise it.
1177	*/
1178	if (OUT_OF_REAL_MAP (more->map, more->x, more->y))
1179	more->map = get_map_from_coord (m, &more->x, &more->y);
1180	else if (!more->map)
1181	{
1182	/* For backwards compatibility - when not dealing with tiled maps,
1183	* more->map should always point to the parent.
1184	*/
1185	more->map = m;
1186	}
1187
1188	if (insert_ob_in_map (more, more->map, originator, flag) == NULL)
1189	{
1190	if (!op->head)
1191	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");
1192
1193	return 0;
1194	}
1195	}
1196
1197	CLEAR_FLAG (op, FLAG_REMOVED);
1198		1288
1199	/* Ideally, the caller figures this out. However, it complicates a lot	1289	/* Ideally, the caller figures this out. However, it complicates a lot
1200	* of areas of callers (eg, anything that uses find_free_spot would now	1290	* of areas of callers (eg, anything that uses find_free_spot would now
1201	* need extra work	1291	* need extra work
1202	*/	1292	*/
1203	op->map = get_map_from_coord (m, &op->x, &op->y);	1293	maptile *newmap = m;
1204	x = op->x;	1294	if (!xy_normalise (newmap, op->x, op->y))
1205	y = op->y;	1295	{
		1296	op->head_ ()->destroy ();// remove head_ once all tail object destroyers found
		1297	return 0;
		1298	}
		1299
		1300	if (object *more = op->more)
		1301	if (!insert_ob_in_map (more, m, originator, flag))
		1302	return 0;
		1303
		1304	op->flag [FLAG_REMOVED] = false;
		1305	op->env = 0;
		1306	op->map = newmap;
		1307
		1308	mapspace &ms = op->ms ();
1206		1309
1207	/* this has to be done after we translate the coordinates.	1310	/* this has to be done after we translate the coordinates.
1208	*/	1311	*/
1209	if (op->nrof && !(flag & INS_NO_MERGE))	1312	if (op->nrof && !(flag & INS_NO_MERGE))
1210	for (tmp = GET_MAP_OB (op->map, x, y); tmp; tmp = tmp->above)	1313	for (object *tmp = ms.bot; tmp; tmp = tmp->above)
1211	if (object::can_merge (op, tmp))	1314	if (object::can_merge (op, tmp))
1212	{	1315	{
		1316	// TODO: we actually want to update tmp, not op,
		1317	// but some caller surely breaks when we return tmp
		1318	// from here :/
1213	op->nrof += tmp->nrof;	1319	op->nrof += tmp->nrof;
1214	tmp->destroy ();	1320	tmp->destroy ();
1215	}	1321	}
1216		1322
1217	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */	1323	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */
…		…
1226	{	1332	{
1227	LOG (llevError, "insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");	1333	LOG (llevError, "insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");
1228	abort ();	1334	abort ();
1229	}	1335	}
1230		1336
		1337	if (!originator->is_on_map ())
		1338	{
		1339	LOG (llevError, "insert_ob_in_map(%s) called with INS_BELOW_ORIGINATOR when originator '%s' not on map",
		1340	op->debug_desc (), originator->debug_desc ());
		1341	abort ();
		1342	}
		1343
1231	op->above = originator;	1344	op->above = originator;
1232	op->below = originator->below;	1345	op->below = originator->below;
1233
1234	if (op->below)
1235	op->below->above = op;
1236	else
1237	op->ms ().bot = op;
1238
1239	/* since *below* originator, no need to update top */
1240	originator->below = op;	1346	originator->below = op;
		1347
		1348	*(op->below ? &op->below->above : &ms.bot) = op;
1241	}	1349	}
1242	else	1350	else
1243	{	1351	{
		1352	object *floor = 0;
		1353	object *top = ms.top;
		1354
1244	/* If there are other objects, then */	1355	/* If there are other objects, then */
1245	if ((!(flag & INS_MAP_LOAD)) && ((top = GET_MAP_OB (op->map, op->x, op->y)) != NULL))	1356	if (top)
1246	{	1357	{
1247	object *last = 0;
1248
1249	/*	1358	/*
1250	* If there are multiple objects on this space, we do some trickier handling.	1359	* If there are multiple objects on this space, we do some trickier handling.
1251	* We've already dealt with merging if appropriate.	1360	* We've already dealt with merging if appropriate.
1252	* Generally, we want to put the new object on top. But if	1361	* Generally, we want to put the new object on top. But if
1253	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last	1362	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last
…		…
1256	* once we get to them. This reduces the need to traverse over all of	1365	* once we get to them. This reduces the need to traverse over all of
1257	* them when adding another one - this saves quite a bit of cpu time	1366	* them when adding another one - this saves quite a bit of cpu time
1258	* when lots of spells are cast in one area. Currently, it is presumed	1367	* when lots of spells are cast in one area. Currently, it is presumed
1259	* that flying non pickable objects are spell objects.	1368	* that flying non pickable objects are spell objects.
1260	*/	1369	*/
1261	while (top)	1370	for (object *tmp = ms.bot; tmp; tmp = tmp->above)
1262	{	1371	{
1263	if (QUERY_FLAG (top, FLAG_IS_FLOOR) || QUERY_FLAG (top, FLAG_OVERLAY_FLOOR))	1372	if (QUERY_FLAG (tmp, FLAG_IS_FLOOR) || QUERY_FLAG (tmp, FLAG_OVERLAY_FLOOR))
1264	floor = top;	1373	floor = tmp;
1265		1374
1266	if (QUERY_FLAG (top, FLAG_NO_PICK) && (top->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (top, FLAG_IS_FLOOR))	1375	if (QUERY_FLAG (tmp, FLAG_NO_PICK) && (tmp->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (tmp, FLAG_IS_FLOOR))
1267	{	1376	{
1268	/* We insert above top, so we want this object below this */	1377	/* We insert above top, so we want this object below this */
1269	top = top->below;	1378	top = tmp->below;
1270	break;	1379	break;
1271	}	1380	}
1272		1381
1273	last = top;
1274	top = top->above;	1382	top = tmp;
1275	}	1383	}
1276
1277	/* Don't want top to be NULL, so set it to the last valid object */
1278	top = last;
1279		1384
1280	/* We let update_position deal with figuring out what the space	1385	/* We let update_position deal with figuring out what the space
1281	* looks like instead of lots of conditions here.	1386	* looks like instead of lots of conditions here.
1282	* makes things faster, and effectively the same result.	1387	* makes things faster, and effectively the same result.
1283	*/	1388	*/
1284		1389
1285	/* Have object 'fall below' other objects that block view.	1390	/* Have object 'fall below' other objects that block view.
1286	* Unless those objects are exits, type 66	1391	* Unless those objects are exits.
1287	* If INS_ON_TOP is used, don't do this processing	1392	* If INS_ON_TOP is used, don't do this processing
1288	* Need to find the object that in fact blocks view, otherwise	1393	* Need to find the object that in fact blocks view, otherwise
1289	* stacking is a bit odd.	1394	* stacking is a bit odd.
1290	*/	1395	*/
1291	if (!(flag & INS_ON_TOP) &&	1396	if (!(flag & INS_ON_TOP)
1292	(get_map_flags (op->map, 0, op->x, op->y, 0, 0) & P_BLOCKSVIEW) && (op->face && !op->face->visibility))	1397	&& ms.flags () & P_BLOCKSVIEW
		1398	&& (op->face && !faces [op->face].visibility))
1293	{	1399	{
		1400	object *last;
		1401
1294	for (last = top; last != floor; last = last->below)	1402	for (last = top; last != floor; last = last->below)
1295	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))	1403	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))
1296	break;	1404	break;
		1405
1297	/* Check to see if we found the object that blocks view,	1406	/* Check to see if we found the object that blocks view,
1298	* and make sure we have a below pointer for it so that	1407	* and make sure we have a below pointer for it so that
1299	* we can get inserted below this one, which requires we	1408	* we can get inserted below this one, which requires we
1300	* set top to the object below us.	1409	* set top to the object below us.
1301	*/	1410	*/
1302	if (last && last->below && last != floor)	1411	if (last && last->below && last != floor)
1303	top = last->below;	1412	top = last->below;
1304	}	1413	}
1305	} /* If objects on this space */	1414	} /* If objects on this space */
1306		1415
1307	if (flag & INS_MAP_LOAD)
1308	top = GET_MAP_TOP (op->map, op->x, op->y);
1309
1310	if (flag & INS_ABOVE_FLOOR_ONLY)	1416	if (flag & INS_ABOVE_FLOOR_ONLY)
1311	top = floor;	1417	top = floor;
1312		1418
1313	/* Top is the object that our object (op) is going to get inserted above.	1419	// insert object above top, or bottom-most if top = 0
1314	*/
1315
1316	/* First object on this space */
1317	if (!top)	1420	if (!top)
1318	{	1421	{
1319	op->above = GET_MAP_OB (op->map, op->x, op->y);
1320
1321	if (op->above)
1322	op->above->below = op;
1323
1324	op->below = 0;	1422	op->below = 0;
		1423	op->above = ms.bot;
1325	op->ms ().bot = op;	1424	ms.bot = op;
		1425
		1426	*(op->above ? &op->above->below : &ms.top) = op;
1326	}	1427	}
1327	else	1428	else
1328	{ /* get inserted into the stack above top */	1429	{
1329	op->above = top->above;	1430	op->above = top->above;
1330
1331	if (op->above)
1332	op->above->below = op;	1431	top->above = op;
1333		1432
1334	op->below = top;	1433	op->below = top;
1335	top->above = op;	1434	*(op->above ? &op->above->below : &ms.top) = op;
1336	}	1435	}
		1436	}
1337		1437
1338	if (!op->above)	1438	if (op->is_player ())
1339	op->ms ().top = op;
1340	} /* else not INS_BELOW_ORIGINATOR */
1341
1342	if (op->type == PLAYER)
1343	{	1439	{
1344	op->contr->do_los = 1;	1440	op->contr->do_los = 1;
1345	++op->map->players;	1441	++op->map->players;
1346	op->map->touch ();	1442	op->map->touch ();
1347	}	1443	}
1348		1444
1349	op->map->dirty = true;	1445	op->map->dirty = true;
1350		1446
1351	/* If we have a floor, we know the player, if any, will be above
1352	* it, so save a few ticks and start from there.
1353	*/
1354	if (!(flag & INS_MAP_LOAD))
1355	if (object *pl = op->ms ().player ())	1447	if (object *pl = ms.player ())
		1448	//TODO: the floorbox prev/next might need updating
		1449	//esrv_send_item (pl, op);
		1450	//TODO: update floorbox to preserve ordering
1356	if (pl->contr->ns)	1451	if (pl->contr->ns)
1357	pl->contr->ns->floorbox_update ();	1452	pl->contr->ns->floorbox_update ();
1358		1453
1359	/* If this object glows, it may affect lighting conditions that are	1454	/* If this object glows, it may affect lighting conditions that are
1360	* visible to others on this map. But update_all_los is really	1455	* visible to others on this map. But update_all_los is really
1361	* an inefficient way to do this, as it means los for all players	1456	* an inefficient way to do this, as it means los for all players
1362	* on the map will get recalculated. The players could very well	1457	* on the map will get recalculated. The players could very well
1363	* be far away from this change and not affected in any way -	1458	* be far away from this change and not affected in any way -
1364	* this should get redone to only look for players within range,	1459	* this should get redone to only look for players within range,
1365	* or just updating the P_UPTODATE for spaces within this area	1460	* or just updating the P_UPTODATE for spaces within this area
1366	* of effect may be sufficient.	1461	* of effect may be sufficient.
1367	*/	1462	*/
1368	if (op->map->darkness && (op->glow_radius != 0))	1463	if (op->affects_los ())
		1464	{
		1465	op->ms ().invalidate ();
1369	update_all_los (op->map, op->x, op->y);	1466	update_all_los (op->map, op->x, op->y);
		1467	}
1370		1468
1371	/* updates flags (blocked, alive, no magic, etc) for this map space */	1469	/* updates flags (blocked, alive, no magic, etc) for this map space */
1372	update_object (op, UP_OBJ_INSERT);	1470	update_object (op, UP_OBJ_INSERT);
1373		1471
1374	INVOKE_OBJECT (INSERT, op);	1472	INVOKE_OBJECT (INSERT, op);
…		…
1381	* blocked() and wall() work properly), and these flags are updated by	1479	* blocked() and wall() work properly), and these flags are updated by
1382	* update_object().	1480	* update_object().
1383	*/	1481	*/
1384		1482
1385	/* if this is not the head or flag has been passed, don't check walk on status */	1483	/* if this is not the head or flag has been passed, don't check walk on status */
1386	if (!(flag & INS_NO_WALK_ON) && !op->head)	1484	if (!(flag & INS_NO_WALK_ON) && op->head_ () == op)
1387	{	1485	{
1388	if (check_move_on (op, originator))	1486	if (check_move_on (op, originator))
1389	return 0;	1487	return 0;
1390		1488
1391	/* If we are a multi part object, lets work our way through the check	1489	/* If we are a multi part object, lets work our way through the check
1392	* walk on's.	1490	* walk on's.
1393	*/	1491	*/
1394	for (tmp = op->more; tmp != NULL; tmp = tmp->more)	1492	for (object *tmp = op->more; tmp; tmp = tmp->more)
1395	if (check_move_on (tmp, originator))	1493	if (check_move_on (tmp, originator))
1396	return 0;	1494	return 0;
1397	}	1495	}
1398		1496
1399	return op;	1497	return op;
…		…
1402	/* this function inserts an object in the map, but if it	1500	/* this function inserts an object in the map, but if it
1403	* finds an object of its own type, it'll remove that one first.	1501	* finds an object of its own type, it'll remove that one first.
1404	* op is the object to insert it under: supplies x and the map.	1502	* op is the object to insert it under: supplies x and the map.
1405	*/	1503	*/
1406	void	1504	void
1407	replace_insert_ob_in_map (const char *arch_string, object *op)	1505	replace_insert_ob_in_map (shstr_tmp archname, object *op)
1408	{	1506	{
1409	object *tmp, *tmp1;
1410
1411	/* first search for itself and remove any old instances */	1507	/* first search for itself and remove any old instances */
1412		1508
1413	for (tmp = op->ms ().bot; tmp; tmp = tmp->above)	1509	for (object *tmp = op->ms ().bot; tmp; tmp = tmp->above)
1414	if (!strcmp (tmp->arch->name, arch_string)) /* same archetype */	1510	if (tmp->arch->archname == archname) /* same archetype */
1415	tmp->destroy ();	1511	tmp->destroy ();
1416		1512
1417	tmp1 = arch_to_object (archetype::find (arch_string));	1513	object *tmp = arch_to_object (archetype::find (archname));
1418		1514
1419	tmp1->x = op->x;	1515	tmp->x = op->x;
1420	tmp1->y = op->y;	1516	tmp->y = op->y;
		1517
1421	insert_ob_in_map (tmp1, op->map, op, 0);	1518	insert_ob_in_map (tmp, op->map, op, 0);
1422	}	1519	}
1423		1520
1424	object *	1521	object *
1425	object::insert_at (object *where, object *originator, int flags)	1522	object::insert_at (object *where, object *originator, int flags)
1426	{	1523	{
		1524	if (where->env)
		1525	return where->env->insert (this);
		1526	else
1427	where->map->insert (this, where->x, where->y, originator, flags);	1527	return where->map->insert (this, where->x, where->y, originator, flags);
1428	}	1528	}
1429		1529
1430	/*	1530	/*
1431	* get_split_ob(ob,nr) splits up ob into two parts. The part which
1432	* is returned contains nr objects, and the remaining parts contains
1433	* the rest (or is removed and freed if that number is 0).
1434	* On failure, NULL is returned, and the reason put into the
1435	* global static errmsg array.
1436	*/
1437	object *
1438	get_split_ob (object *orig_ob, uint32 nr)
1439	{
1440	object *newob;
1441	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);
1442
1443	if (orig_ob->nrof < nr)
1444	{
1445	sprintf (errmsg, "There are only %d %ss.", orig_ob->nrof ? orig_ob->nrof : 1, &orig_ob->name);
1446	return NULL;
1447	}
1448
1449	newob = object_create_clone (orig_ob);
1450
1451	if ((orig_ob->nrof -= nr) < 1)
1452	orig_ob->destroy (1);
1453	else if (!is_removed)
1454	{
1455	if (orig_ob->env != NULL)
1456	sub_weight (orig_ob->env, orig_ob->weight * nr);
1457	if (orig_ob->env == NULL && orig_ob->map->in_memory != MAP_IN_MEMORY)
1458	{
1459	strcpy (errmsg, "Tried to split object whose map is not in memory.");
1460	LOG (llevDebug, "Error, Tried to split object whose map is not in memory.\n");
1461	return NULL;
1462	}
1463	}
1464
1465	newob->nrof = nr;
1466
1467	return newob;
1468	}
1469
1470	/*
1471	* decrease_ob_nr(object, number) decreases a specified number from	1531	* decrease(object, number) decreases a specified number from
1472	* the amount of an object. If the amount reaches 0, the object	1532	* the amount of an object. If the amount reaches 0, the object
1473	* is subsequently removed and freed.	1533	* is subsequently removed and freed.
1474	*	1534	*
1475	* Return value: 'op' if something is left, NULL if the amount reached 0	1535	* Return value: 'op' if something is left, NULL if the amount reached 0
1476	*/	1536	*/
		1537	bool
		1538	object::decrease (sint32 nr)
		1539	{
		1540	if (!nr)
		1541	return true;
1477		1542
		1543	nr = min (nr, nrof);
		1544
		1545	if (nrof > nr)
		1546	{
		1547	nrof -= nr;
		1548	adjust_weight (env, -weight * max (1, nr)); // carrying == 0
		1549
		1550	if (object *pl = visible_to ())
		1551	esrv_update_item (UPD_NROF, pl, this);
		1552
		1553	return true;
		1554	}
		1555	else
		1556	{
		1557	destroy ();
		1558	return false;
		1559	}
		1560	}
		1561
		1562	/*
		1563	* split(ob,nr) splits up ob into two parts. The part which
		1564	* is returned contains nr objects, and the remaining parts contains
		1565	* the rest (or is removed and returned if that number is 0).
		1566	* On failure, NULL is returned.
		1567	*/
1478	object *	1568	object *
1479	decrease_ob_nr (object *op, uint32 i)	1569	object::split (sint32 nr)
1480	{	1570	{
1481	object *tmp;	1571	int have = number_of ();
1482		1572
1483	if (i == 0) /* objects with op->nrof require this check */	1573	if (have < nr)
1484	return op;	1574	return 0;
1485		1575	else if (have == nr)
1486	if (i > op->nrof)
1487	i = op->nrof;
1488
1489	if (QUERY_FLAG (op, FLAG_REMOVED))
1490	op->nrof -= i;
1491	else if (op->env)
1492	{	1576	{
1493	/* is this object in the players inventory, or sub container
1494	* therein?
1495	*/
1496	tmp = op->in_player ();
1497	/* nope. Is this a container the player has opened?
1498	* If so, set tmp to that player.
1499	* IMO, searching through all the players will mostly
1500	* likely be quicker than following op->env to the map,
1501	* and then searching the map for a player.
1502	*/
1503	if (!tmp)
1504	for_all_players (pl)
1505	if (pl->ob->container == op->env)
1506	{
1507	tmp = pl->ob;
1508	break;
1509	}
1510
1511	if (i < op->nrof)
1512	{
1513	sub_weight (op->env, op->weight * i);
1514	op->nrof -= i;
1515	if (tmp)
1516	esrv_send_item (tmp, op);
1517	}
1518	else
1519	{
1520	op->remove ();	1577	remove ();
1521	op->nrof = 0;	1578	return this;
1522	if (tmp)
1523	esrv_del_item (tmp->contr, op->count);
1524	}
1525	}	1579	}
1526	else	1580	else
1527	{	1581	{
1528	object *above = op->above;	1582	decrease (nr);
1529		1583
1530	if (i < op->nrof)	1584	object *op = deep_clone ();
1531	op->nrof -= i;	1585	op->nrof = nr;
1532	else
1533	{
1534	op->remove ();
1535	op->nrof = 0;
1536	}
1537
1538	/* Since we just removed op, op->above is null */
1539	for (tmp = above; tmp; tmp = tmp->above)
1540	if (tmp->type == PLAYER)
1541	{
1542	if (op->nrof)
1543	esrv_send_item (tmp, op);
1544	else
1545	esrv_del_item (tmp->contr, op->count);
1546	}
1547	}
1548
1549	if (op->nrof)
1550	return op;	1586	return op;
1551	else
1552	{
1553	op->destroy ();
1554	return 0;
1555	}
1556	}
1557
1558	/*
1559	* add_weight(object, weight) adds the specified weight to an object,
1560	* and also updates how much the environment(s) is/are carrying.
1561	*/
1562
1563	void
1564	add_weight (object *op, signed long weight)
1565	{
1566	while (op != NULL)
1567	{
1568	if (op->type == CONTAINER)
1569	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1570
1571	op->carrying += weight;
1572	op = op->env;
1573	}	1587	}
1574	}	1588	}
1575		1589
1576	object *	1590	object *
1577	insert_ob_in_ob (object *op, object *where)	1591	insert_ob_in_ob (object *op, object *where)
…		…
1582	LOG (llevError, "Trying to put object in NULL.\n%s\n", dump);	1596	LOG (llevError, "Trying to put object in NULL.\n%s\n", dump);
1583	free (dump);	1597	free (dump);
1584	return op;	1598	return op;
1585	}	1599	}
1586		1600
1587	if (where->head)	1601	if (where->head_ () != where)
1588	{	1602	{
1589	LOG (llevDebug, "Warning: Tried to insert object into wrong part of multipart object.\n");	1603	LOG (llevError | logBacktrace, "Warning: Tried to insert object into wrong part of multipart object.\n");
1590	where = where->head;	1604	where = where->head;
1591	}	1605	}
1592		1606
1593	return where->insert (op);	1607	return where->insert (op);
1594	}	1608	}
…		…
1599	* inside the object environment.	1613	* inside the object environment.
1600	*	1614	*
1601	* The function returns now pointer to inserted item, and return value can	1615	* The function returns now pointer to inserted item, and return value can
1602	* be != op, if items are merged. -Tero	1616	* be != op, if items are merged. -Tero
1603	*/	1617	*/
1604
1605	object *	1618	object *
1606	object::insert (object *op)	1619	object::insert (object *op)
1607	{	1620	{
1608	object *tmp, *otmp;
1609
1610	if (!QUERY_FLAG (op, FLAG_REMOVED))
1611	op->remove ();
1612
1613	if (op->more)	1621	if (op->more)
1614	{	1622	{
1615	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);	1623	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);
1616	return op;	1624	return op;
1617	}	1625	}
1618		1626
1619	CLEAR_FLAG (op, FLAG_OBJ_ORIGINAL);	1627	op->remove ();
1620	CLEAR_FLAG (op, FLAG_REMOVED);	1628
		1629	op->flag [FLAG_OBJ_ORIGINAL] = 0;
		1630
1621	if (op->nrof)	1631	if (op->nrof)
1622	{
1623	for (tmp = inv; tmp != NULL; tmp = tmp->below)	1632	for (object *tmp = inv; tmp; tmp = tmp->below)
1624	if (object::can_merge (tmp, op))	1633	if (object::can_merge (tmp, op))
1625	{	1634	{
1626	/* return the original object and remove inserted object	1635	/* return the original object and remove inserted object
1627	(client needs the original object) */	1636	(client needs the original object) */
1628	tmp->nrof += op->nrof;	1637	tmp->nrof += op->nrof;
1629	/* Weight handling gets pretty funky. Since we are adding to	1638
1630	* tmp->nrof, we need to increase the weight.	1639	if (object *pl = tmp->visible_to ())
1631	*/	1640	esrv_update_item (UPD_NROF, pl, tmp);
		1641
1632	add_weight (this, op->weight * op->nrof);	1642	adjust_weight (this, op->total_weight ());
1633	SET_FLAG (op, FLAG_REMOVED);	1643
1634	op->destroy (); /* free the inserted object */	1644	op->destroy ();
1635	op = tmp;	1645	op = tmp;
1636	op->remove (); /* and fix old object's links */	1646	goto inserted;
1637	CLEAR_FLAG (op, FLAG_REMOVED);
1638	break;
1639	}	1647	}
1640		1648
1641	/* I assume combined objects have no inventory	1649	op->owner = 0; // it's his/hers now. period.
1642	* We add the weight - this object could have just been removed
1643	* (if it was possible to merge). calling remove_ob will subtract
1644	* the weight, so we need to add it in again, since we actually do
1645	* the linking below
1646	*/
1647	add_weight (this, op->weight * op->nrof);
1648	}
1649	else
1650	add_weight (this, (op->weight + op->carrying));
1651
1652	otmp = this->in_player ();
1653	if (otmp && otmp->contr)
1654	if (!QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1655	otmp->update_stats ();
1656
1657	op->map = 0;	1650	op->map = 0;
1658	op->env = this;	1651	op->x = 0;
		1652	op->y = 0;
		1653
1659	op->above = 0;	1654	op->above = 0;
1660	op->below = 0;	1655	op->below = inv;
1661	op->x = 0, op->y = 0;	1656	op->env = this;
1662		1657
		1658	if (inv)
		1659	inv->above = op;
		1660
		1661	inv = op;
		1662
		1663	op->flag [FLAG_REMOVED] = 0;
		1664
		1665	if (object *pl = op->visible_to ())
		1666	esrv_send_item (pl, op);
		1667
		1668	adjust_weight (this, op->total_weight ());
		1669
		1670	inserted:
1663	/* reset the light list and los of the players on the map */	1671	/* reset the light list and los of the players on the map */
1664	if ((op->glow_radius != 0) && map)	1672	if (op->glow_radius && is_on_map ())
1665	{	1673	{
1666	#ifdef DEBUG_LIGHTS	1674	update_stats ();
1667	LOG (llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n", op->name);
1668	#endif /* DEBUG_LIGHTS */
1669	if (map->darkness)
1670	update_all_los (map, x, y);	1675	update_all_los (map, x, y);
1671	}
1672
1673	/* Client has no idea of ordering so lets not bother ordering it here.
1674	* It sure simplifies this function...
1675	*/
1676	if (!inv)
1677	inv = op;
1678	else
1679	{	1676	}
1680	op->below = inv;	1677	else if (is_player () && !flag [FLAG_NO_FIX_PLAYER])
1681	op->below->above = op;	1678	// if this is a player's inventory, update stats
1682	inv = op;	1679	update_stats ();
1683	}
1684		1680
1685	INVOKE_OBJECT (INSERT, this);	1681	INVOKE_OBJECT (INSERT, this);
1686		1682
1687	return op;	1683	return op;
1688	}	1684	}
…		…
1769	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||	1765	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||
1770	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))	1766	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))
1771	{	1767	{
1772		1768
1773	float	1769	float
1774	diff = tmp->move_slow_penalty * FABS (op->speed);	1770	diff = tmp->move_slow_penalty * fabs (op->speed);
1775		1771
1776	if (op->type == PLAYER)	1772	if (op->is_player ())
1777	if ((QUERY_FLAG (tmp, FLAG_IS_HILLY) && find_skill_by_number (op, SK_CLIMBING)) ||	1773	if ((QUERY_FLAG (tmp, FLAG_IS_HILLY) && find_skill_by_number (op, SK_CLIMBING)) ||
1778	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))	1774	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))
1779	diff /= 4.0;	1775	diff /= 4.0;
1780		1776
1781	op->speed_left -= diff;	1777	op->speed_left -= diff;
…		…
1816	LOG (llevError, "Present_arch called outside map.\n");	1812	LOG (llevError, "Present_arch called outside map.\n");
1817	return NULL;	1813	return NULL;
1818	}	1814	}
1819		1815
1820	for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)	1816	for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)
1821	if (tmp->arch == at)	1817	if (tmp->arch->archname == at->archname)
1822	return tmp;	1818	return tmp;
1823		1819
1824	return NULL;	1820	return NULL;
1825	}	1821	}
1826		1822
…		…
1890	* The first matching object is returned, or NULL if none.	1886	* The first matching object is returned, or NULL if none.
1891	*/	1887	*/
1892	object *	1888	object *
1893	present_arch_in_ob (const archetype *at, const object *op)	1889	present_arch_in_ob (const archetype *at, const object *op)
1894	{	1890	{
1895	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)	1891	for (object *tmp = op->inv; tmp; tmp = tmp->below)
1896	if (tmp->arch == at)	1892	if (tmp->arch->archname == at->archname)
1897	return tmp;	1893	return tmp;
1898		1894
1899	return NULL;	1895	return NULL;
1900	}	1896	}
1901		1897
…		…
1903	* activate recursively a flag on an object inventory	1899	* activate recursively a flag on an object inventory
1904	*/	1900	*/
1905	void	1901	void
1906	flag_inv (object *op, int flag)	1902	flag_inv (object *op, int flag)
1907	{	1903	{
1908	if (op->inv)
1909	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)	1904	for (object *tmp = op->inv; tmp; tmp = tmp->below)
1910	{	1905	{
1911	SET_FLAG (tmp, flag);	1906	SET_FLAG (tmp, flag);
1912	flag_inv (tmp, flag);	1907	flag_inv (tmp, flag);
1913	}	1908	}
1914	}	1909	}
1915		1910
1916	/*	1911	/*
1917	* deactivate recursively a flag on an object inventory	1912	* deactivate recursively a flag on an object inventory
1918	*/	1913	*/
1919	void	1914	void
1920	unflag_inv (object *op, int flag)	1915	unflag_inv (object *op, int flag)
1921	{	1916	{
1922	if (op->inv)
1923	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)	1917	for (object *tmp = op->inv; tmp; tmp = tmp->below)
1924	{	1918	{
1925	CLEAR_FLAG (tmp, flag);	1919	CLEAR_FLAG (tmp, flag);
1926	unflag_inv (tmp, flag);	1920	unflag_inv (tmp, flag);
1927	}	1921	}
1928	}
1929
1930	/*
1931	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in
1932	* all it's inventory (recursively).
1933	* If checksums are used, a player will get set_cheat called for
1934	* him/her-self and all object carried by a call to this function.
1935	*/
1936	void
1937	set_cheat (object *op)
1938	{
1939	SET_FLAG (op, FLAG_WAS_WIZ);
1940	flag_inv (op, FLAG_WAS_WIZ);
1941	}	1922	}
1942		1923
1943	/*	1924	/*
1944	* find_free_spot(object, map, x, y, start, stop) will search for	1925	* find_free_spot(object, map, x, y, start, stop) will search for
1945	* a spot at the given map and coordinates which will be able to contain	1926	* a spot at the given map and coordinates which will be able to contain
…		…
1947	* to search (see the freearr_x/y[] definition).	1928	* to search (see the freearr_x/y[] definition).
1948	* It returns a random choice among the alternatives found.	1929	* It returns a random choice among the alternatives found.
1949	* start and stop are where to start relative to the free_arr array (1,9	1930	* start and stop are where to start relative to the free_arr array (1,9
1950	* does all 4 immediate directions). This returns the index into the	1931	* does all 4 immediate directions). This returns the index into the
1951	* array of the free spot, -1 if no spot available (dir 0 = x,y)	1932	* array of the free spot, -1 if no spot available (dir 0 = x,y)
1952	* Note - this only checks to see if there is space for the head of the
1953	* object - if it is a multispace object, this should be called for all
1954	* pieces.
1955	* Note2: This function does correctly handle tiled maps, but does not	1933	* Note: This function does correctly handle tiled maps, but does not
1956	* inform the caller. However, insert_ob_in_map will update as	1934	* inform the caller. However, insert_ob_in_map will update as
1957	* necessary, so the caller shouldn't need to do any special work.	1935	* necessary, so the caller shouldn't need to do any special work.
1958	* Note - updated to take an object instead of archetype - this is necessary	1936	* Note - updated to take an object instead of archetype - this is necessary
1959	* because arch_blocked (now ob_blocked) needs to know the movement type	1937	* because arch_blocked (now ob_blocked) needs to know the movement type
1960	* to know if the space in question will block the object. We can't use	1938	* to know if the space in question will block the object. We can't use
…		…
1962	* customized, changed states, etc.	1940	* customized, changed states, etc.
1963	*/	1941	*/
1964	int	1942	int
1965	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)	1943	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)
1966	{	1944	{
		1945	int altern[SIZEOFFREE];
1967	int index = 0, flag;	1946	int index = 0, flag;
1968	int altern[SIZEOFFREE];
1969		1947
1970	for (int i = start; i < stop; i++)	1948	for (int i = start; i < stop; i++)
1971	{	1949	{
1972	flag = ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]);	1950	mapxy pos (m, x, y); pos.move (i);
1973	if (!flag)	1951
		1952	if (!pos.normalise ())
		1953	continue;
		1954
		1955	mapspace &ms = *pos;
		1956
		1957	if (ms.flags () & P_IS_ALIVE)
		1958	continue;
		1959
		1960	/* However, often
		1961	* ob doesn't have any move type (when used to place exits)
		1962	* so the AND operation in OB_TYPE_MOVE_BLOCK doesn't work.
		1963	*/
		1964	if (ob && ob->move_type == 0 && ms.move_block != MOVE_ALL)
		1965	{
1974	altern [index++] = i;	1966	altern [index++] = i;
		1967	continue;
		1968	}
1975		1969
1976	/* Basically, if we find a wall on a space, we cut down the search size.	1970	/* Basically, if we find a wall on a space, we cut down the search size.
1977	* In this way, we won't return spaces that are on another side of a wall.	1971	* In this way, we won't return spaces that are on another side of a wall.
1978	* This mostly work, but it cuts down the search size in all directions -	1972	* This mostly work, but it cuts down the search size in all directions -
1979	* if the space being examined only has a wall to the north and empty	1973	* if the space being examined only has a wall to the north and empty
1980	* spaces in all the other directions, this will reduce the search space	1974	* spaces in all the other directions, this will reduce the search space
1981	* to only the spaces immediately surrounding the target area, and	1975	* to only the spaces immediately surrounding the target area, and
1982	* won't look 2 spaces south of the target space.	1976	* won't look 2 spaces south of the target space.
1983	*/	1977	*/
1984	else if ((flag & P_NO_PASS) && maxfree[i] < stop)	1978	if (ms.move_block == MOVE_ALL && maxfree[i] < stop)
		1979	{
1985	stop = maxfree[i];	1980	stop = maxfree[i];
		1981	continue;
		1982	}
		1983
		1984	/* Note it is intentional that we check ob - the movement type of the
		1985	* head of the object should correspond for the entire object.
		1986	*/
		1987	if (OB_TYPE_MOVE_BLOCK (ob, ms.move_block))
		1988	continue;
		1989
		1990	if (ob->blocked (pos.m, pos.x, pos.y))
		1991	continue;
		1992
		1993	altern [index++] = i;
1986	}	1994	}
1987		1995
1988	if (!index)	1996	if (!index)
1989	return -1;	1997	return -1;
1990		1998
1991	return altern[RANDOM () % index];	1999	return altern [rndm (index)];
1992	}	2000	}
1993		2001
1994	/*	2002	/*
1995	* find_first_free_spot(archetype, maptile, x, y) works like	2003	* find_first_free_spot(archetype, maptile, x, y) works like
1996	* find_free_spot(), but it will search max number of squares.	2004	* find_free_spot(), but it will search max number of squares.
…		…
1999	*/	2007	*/
2000	int	2008	int
2001	find_first_free_spot (const object *ob, maptile *m, int x, int y)	2009	find_first_free_spot (const object *ob, maptile *m, int x, int y)
2002	{	2010	{
2003	for (int i = 0; i < SIZEOFFREE; i++)	2011	for (int i = 0; i < SIZEOFFREE; i++)
2004	if (!ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]))	2012	if (!ob->blocked (m, x + freearr_x[i], y + freearr_y[i]))
2005	return i;	2013	return i;
2006		2014
2007	return -1;	2015	return -1;
2008	}	2016	}
2009		2017
…		…
2017	{	2025	{
2018	arr += begin;	2026	arr += begin;
2019	end -= begin;	2027	end -= begin;
2020		2028
2021	while (--end)	2029	while (--end)
2022	swap (arr [end], arr [RANDOM () % (end + 1)]);	2030	swap (arr [end], arr [rndm (end + 1)]);
2023	}	2031	}
2024		2032
2025	/* new function to make monster searching more efficient, and effective!	2033	/* new function to make monster searching more efficient, and effective!
2026	* This basically returns a randomized array (in the passed pointer) of	2034	* This basically returns a randomized array (in the passed pointer) of
2027	* the spaces to find monsters. In this way, it won't always look for	2035	* the spaces to find monsters. In this way, it won't always look for
…		…
2055	* there is capable of.	2063	* there is capable of.
2056	*/	2064	*/
2057	int	2065	int
2058	find_dir (maptile *m, int x, int y, object *exclude)	2066	find_dir (maptile *m, int x, int y, object *exclude)
2059	{	2067	{
2060	int i, max = SIZEOFFREE, mflags;	2068	int max = SIZEOFFREE, mflags;
2061
2062	sint16 nx, ny;
2063	object *tmp;
2064	maptile *mp;
2065
2066	MoveType blocked, move_type;	2069	MoveType move_type;
2067		2070
2068	if (exclude && exclude->head)	2071	if (exclude && exclude->head_ () != exclude)
2069	{	2072	{
2070	exclude = exclude->head;	2073	exclude = exclude->head;
2071	move_type = exclude->move_type;	2074	move_type = exclude->move_type;
2072	}	2075	}
2073	else	2076	else
2074	{	2077	{
2075	/* If we don't have anything, presume it can use all movement types. */	2078	/* If we don't have anything, presume it can use all movement types. */
2076	move_type = MOVE_ALL;	2079	move_type = MOVE_ALL;
2077	}	2080	}
2078		2081
2079	for (i = 1; i < max; i++)	2082	for (int i = 1; i < max; i++)
2080	{	2083	{
2081	mp = m;	2084	mapxy pos (m, x, y);
2082	nx = x + freearr_x[i];	2085	pos.move (i);
2083	ny = y + freearr_y[i];
2084		2086
2085	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);	2087	if (!pos.normalise ())
2086
2087	if (mflags & P_OUT_OF_MAP)
2088	max = maxfree[i];	2088	max = maxfree[i];
2089	else	2089	else
2090	{	2090	{
2091	mapspace &ms = mp->at (nx, ny);	2091	mapspace &ms = *pos;
2092		2092
2093	blocked = ms.move_block;
2094
2095	if ((move_type & blocked) == move_type)	2093	if ((move_type & ms.move_block) == move_type)
2096	max = maxfree[i];	2094	max = maxfree [i];
2097	else if (mflags & P_IS_ALIVE)	2095	else if (ms.flags () & P_IS_ALIVE)
2098	{	2096	{
2099	for (tmp = ms.bot; tmp; tmp = tmp->above)	2097	for (object *tmp = ms.bot; tmp; tmp = tmp->above)
2100	if ((tmp->flag [FLAG_MONSTER] || tmp->type == PLAYER)	2098	if ((tmp->flag [FLAG_MONSTER] || tmp->is_player ())
2101	&& (tmp != exclude || (tmp->head && tmp->head != exclude)))	2099	&& (tmp != exclude || (tmp->head_ () != tmp && tmp->head_ () != exclude)))
2102	break;
2103
2104	if (tmp)
2105	return freedir[i];	2100	return freedir [i];
2106	}	2101	}
2107	}	2102	}
2108	}	2103	}
2109		2104
2110	return 0;	2105	return 0;
…		…
2161		2156
2162	return 3;	2157	return 3;
2163	}	2158	}
2164		2159
2165	/*	2160	/*
2166	* absdir(int): Returns a number between 1 and 8, which represent
2167	* the "absolute" direction of a number (it actually takes care of
2168	* "overflow" in previous calculations of a direction).
2169	*/
2170
2171	int
2172	absdir (int d)
2173	{
2174	while (d < 1)
2175	d += 8;
2176
2177	while (d > 8)
2178	d -= 8;
2179
2180	return d;
2181	}
2182
2183	/*
2184	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is	2161	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is
2185	* between two directions (which are expected to be absolute (see absdir())	2162	* between two directions (which are expected to be absolute (see absdir())
2186	*/	2163	*/
2187
2188	int	2164	int
2189	dirdiff (int dir1, int dir2)	2165	dirdiff (int dir1, int dir2)
2190	{	2166	{
2191	int d;	2167	int d;
2192		2168
…		…
2204	* This basically means that if direction is 15, then it could either go	2180	* This basically means that if direction is 15, then it could either go
2205	* direction 4, 14, or 16 to get back to where we are.	2181	* direction 4, 14, or 16 to get back to where we are.
2206	* Moved from spell_util.c to object.c with the other related direction	2182	* Moved from spell_util.c to object.c with the other related direction
2207	* functions.	2183	* functions.
2208	*/	2184	*/
2209	int reduction_dir[SIZEOFFREE][3] = {	2185	const int reduction_dir[SIZEOFFREE][3] = {
2210	{0, 0, 0}, /* 0 */	2186	{0, 0, 0}, /* 0 */
2211	{0, 0, 0}, /* 1 */	2187	{0, 0, 0}, /* 1 */
2212	{0, 0, 0}, /* 2 */	2188	{0, 0, 0}, /* 2 */
2213	{0, 0, 0}, /* 3 */	2189	{0, 0, 0}, /* 3 */
2214	{0, 0, 0}, /* 4 */	2190	{0, 0, 0}, /* 4 */
…		…
2305	* Cf 0.91.3 - don't let WIZ's pick up anything - will likely cause	2281	* Cf 0.91.3 - don't let WIZ's pick up anything - will likely cause
2306	* core dumps if they do.	2282	* core dumps if they do.
2307	*	2283	*
2308	* Add a check so we can't pick up invisible objects (0.93.8)	2284	* Add a check so we can't pick up invisible objects (0.93.8)
2309	*/	2285	*/
2310
2311	int	2286	int
2312	can_pick (const object *who, const object *item)	2287	can_pick (const object *who, const object *item)
2313	{	2288	{
2314	return /*QUERY_FLAG(who,FLAG_WIZ)|| */	2289	return /*QUERY_FLAG(who,FLAG_WIZ)|| */
2315	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&	2290	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&
2316	!QUERY_FLAG (item, FLAG_ALIVE) && !item->invisible && (who->type == PLAYER || item->weight < who->weight / 3));	2291	!QUERY_FLAG (item, FLAG_ALIVE) && !item->invisible && (who->is_player () || item->weight < who->weight / 3));
2317	}	2292	}
2318		2293
2319	/*	2294	/*
2320	* create clone from object to another	2295	* create clone from object to another
2321	*/	2296	*/
2322	object *	2297	object *
2323	object_create_clone (object *asrc)	2298	object::deep_clone ()
2324	{	2299	{
2325	object *dst = 0, *tmp, *src, *part, *prev, *item;	2300	assert (("deep_clone called on non-head object", is_head ()));
2326		2301
2327	if (!asrc)	2302	object *dst = clone ();
2328	return 0;
2329		2303
2330	src = asrc;	2304	object *prev = dst;
2331	if (src->head)
2332	src = src->head;
2333
2334	prev = 0;
2335	for (part = src; part; part = part->more)	2305	for (object *part = this->more; part; part = part->more)
2336	{	2306	{
2337	tmp = part->clone ();	2307	object *tmp = part->clone ();
2338	tmp->x -= src->x;
2339	tmp->y -= src->y;
2340
2341	if (!part->head)
2342	{
2343	dst = tmp;
2344	tmp->head = 0;
2345	}
2346	else
2347	tmp->head = dst;	2308	tmp->head = dst;
2348
2349	tmp->more = 0;
2350
2351	if (prev)
2352	prev->more = tmp;	2309	prev->more = tmp;
2353
2354	prev = tmp;	2310	prev = tmp;
2355	}	2311	}
2356		2312
2357	for (item = src->inv; item; item = item->below)	2313	for (object *item = inv; item; item = item->below)
2358	insert_ob_in_ob (object_create_clone (item), dst);	2314	insert_ob_in_ob (item->deep_clone (), dst);
2359		2315
2360	return dst;	2316	return dst;
2361	}
2362
2363	/* GROS - Creates an object using a string representing its content. */
2364	/* Basically, we save the content of the string to a temp file, then call */
2365	/* load_object on it. I admit it is a highly inefficient way to make things, */
2366	/* but it was simple to make and allows reusing the load_object function. */
2367	/* Remember not to use load_object_str in a time-critical situation. */
2368	/* Also remember that multiparts objects are not supported for now. */
2369	object *
2370	load_object_str (const char *obstr)
2371	{
2372	object *op;
2373	char filename[MAX_BUF];
2374
2375	sprintf (filename, "%s/cfloadobstr2044", settings.tmpdir);
2376
2377	FILE *tempfile = fopen (filename, "w");
2378
2379	if (tempfile == NULL)
2380	{
2381	LOG (llevError, "Error - Unable to access load object temp file\n");
2382	return NULL;
2383	}
2384
2385	fprintf (tempfile, obstr);
2386	fclose (tempfile);
2387
2388	op = object::create ();
2389
2390	object_thawer thawer (filename);
2391
2392	if (thawer)
2393	load_object (thawer, op, 0);
2394
2395	LOG (llevDebug, " load str completed, object=%s\n", &op->name);
2396	CLEAR_FLAG (op, FLAG_REMOVED);
2397
2398	return op;
2399	}	2317	}
2400		2318
2401	/* This returns the first object in who's inventory that	2319	/* This returns the first object in who's inventory that
2402	* has the same type and subtype match.	2320	* has the same type and subtype match.
2403	* returns NULL if no match.	2321	* returns NULL if no match.
…		…
2410	return tmp;	2328	return tmp;
2411		2329
2412	return 0;	2330	return 0;
2413	}	2331	}
2414		2332
2415	/* If ob has a field named key, return the link from the list,	2333	shstr_tmp
2416	* otherwise return NULL.	2334	object::kv_get (shstr_tmp key) const
2417	*
2418	* key must be a passed in shared string - otherwise, this won't
2419	* do the desired thing.
2420	*/
2421	key_value *
2422	get_ob_key_link (const object *ob, const char *key)
2423	{	2335	{
2424	for (key_value *link = ob->key_values; link; link = link->next)	2336	for (key_value *kv = key_values; kv; kv = kv->next)
2425	if (link->key == key)	2337	if (kv->key == key)
2426	return link;
2427
2428	return 0;
2429	}
2430
2431	/*
2432	* Returns the value of op has an extra_field for key, or NULL.
2433	*
2434	* The argument doesn't need to be a shared string.
2435	*
2436	* The returned string is shared.
2437	*/
2438	const char *
2439	get_ob_key_value (const object *op, const char *const key)
2440	{
2441	key_value *link;
2442	shstr_cmp canonical_key (key);
2443
2444	if (!canonical_key)
2445	{
2446	/* 1. There being a field named key on any object
2447	* implies there'd be a shared string to find.
2448	* 2. Since there isn't, no object has this field.
2449	* 3. Therefore, *this* object doesn't have this field.
2450	*/
2451	return 0;
2452	}
2453
2454	/* This is copied from get_ob_key_link() above -
2455	* only 4 lines, and saves the function call overhead.
2456	*/
2457	for (link = op->key_values; link; link = link->next)
2458	if (link->key == canonical_key)
2459	return link->value;	2338	return kv->value;
2460		2339
2461	return 0;	2340	return shstr ();
2462	}	2341	}
2463		2342
2464		2343	void
2465	/*	2344	object::kv_set (shstr_tmp key, shstr_tmp value)
2466	* Updates the canonical_key in op to value.
2467	*
2468	* canonical_key is a shared string (value doesn't have to be).
2469	*
2470	* Unless add_key is TRUE, it won't add fields, only change the value of existing
2471	* keys.
2472	*
2473	* Returns TRUE on success.
2474	*/
2475	int
2476	set_ob_key_value_s (object *op, const shstr & canonical_key, const char *value, int add_key)
2477	{	2345	{
2478	key_value *field = NULL, *last = NULL;	2346	for (key_value *kv = key_values; kv; kv = kv->next)
2479		2347	if (kv->key == key)
2480	for (field = op->key_values; field != NULL; field = field->next)
2481	{
2482	if (field->key != canonical_key)
2483	{	2348	{
2484	last = field;	2349	kv->value = value;
2485	continue;	2350	return;
2486	}	2351	}
2487		2352
2488	if (value)	2353	key_value *kv = new key_value;
2489	field->value = value;	2354
2490	else	2355	kv->next = key_values;
		2356	kv->key = key;
		2357	kv->value = value;
		2358
		2359	key_values = kv;
		2360	}
		2361
		2362	void
		2363	object::kv_del (shstr_tmp key)
		2364	{
		2365	for (key_value **kvp = &key_values; *kvp; kvp = &(*kvp)->next)
		2366	if ((*kvp)->key == key)
2491	{	2367	{
2492	/* Basically, if the archetype has this key set,	2368	key_value *kv = *kvp;
2493	* we need to store the null value so when we save	2369	*kvp = (*kvp)->next;
2494	* it, we save the empty value so that when we load,	2370	delete kv;
2495	* we get this value back again.	2371	return;
2496	*/
2497	if (get_ob_key_link (&op->arch->clone, canonical_key))
2498	field->value = 0;
2499	else
2500	{
2501	if (last)
2502	last->next = field->next;
2503	else
2504	op->key_values = field->next;
2505
2506	delete field;
2507	}
2508	}	2372	}
2509	return TRUE;
2510	}
2511	/* IF we get here, key doesn't exist */
2512
2513	/* No field, we'll have to add it. */
2514
2515	if (!add_key)
2516	return FALSE;
2517
2518	/* There isn't any good reason to store a null
2519	* value in the key/value list. If the archetype has
2520	* this key, then we should also have it, so shouldn't
2521	* be here. If user wants to store empty strings,
2522	* should pass in ""
2523	*/
2524	if (value == NULL)
2525	return TRUE;
2526
2527	field = new key_value;
2528
2529	field->key = canonical_key;
2530	field->value = value;
2531	/* Usual prepend-addition. */
2532	field->next = op->key_values;
2533	op->key_values = field;
2534
2535	return TRUE;
2536	}
2537
2538	/*
2539	* Updates the key in op to value.
2540	*
2541	* If add_key is FALSE, this will only update existing keys,
2542	* and not add new ones.
2543	* In general, should be little reason FALSE is ever passed in for add_key
2544	*
2545	* Returns TRUE on success.
2546	*/
2547	int
2548	set_ob_key_value (object *op, const char *key, const char *value, int add_key)
2549	{
2550	shstr key_ (key);
2551
2552	return set_ob_key_value_s (op, key_, value, add_key);
2553	}	2373	}
2554		2374
2555	object::depth_iterator::depth_iterator (object *container)	2375	object::depth_iterator::depth_iterator (object *container)
2556	: iterator_base (container)	2376	: iterator_base (container)
2557	{	2377	{
…		…
2570	item = item->inv;	2390	item = item->inv;
2571	}	2391	}
2572	else	2392	else
2573	item = item->env;	2393	item = item->env;
2574	}	2394	}
2575
2576		2395
2577	const char *	2396	const char *
2578	object::flag_desc (char *desc, int len) const	2397	object::flag_desc (char *desc, int len) const
2579	{	2398	{
2580	char *p = desc;	2399	char *p = desc;
…		…
2608	{	2427	{
2609	char flagdesc[512];	2428	char flagdesc[512];
2610	char info2[256 * 4];	2429	char info2[256 * 4];
2611	char *p = info;	2430	char *p = info;
2612		2431
2613	p += snprintf (p, 512, "{cnt:%d,uuid:<1,%" PRIx64 ">,name:\"%s%s%s\",flags:[%s],type:%d}",	2432	p += snprintf (p, 512, "{cnt:%d,uuid:%s,name:\"%s\"%s%s%s,flags:[%s],type:%d}",
2614	count, uuid.seq,	2433	count,
		2434	uuid.c_str (),
2615	&name,	2435	&name,
2616	title ? "\",title:" : "",	2436	title ? ",title:\"" : "",
2617	title ? (const char *)title : "",	2437	title ? (const char *)title : "",
		2438	title ? "\"" : "",
2618	flag_desc (flagdesc, 512), type);	2439	flag_desc (flagdesc, 512), type);
2619		2440
2620	if (env)	2441	if (!flag[FLAG_REMOVED] && env)
2621	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));	2442	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));
2622		2443
2623	if (map)	2444	if (map)
2624	p += snprintf (p, 256, "(on %s@%d+%d)", &map->path, x, y);	2445	p += snprintf (p, 256, "(on %s@%d+%d)", &map->path, x, y);
2625		2446
…		…
2627	}	2448	}
2628		2449
2629	const char *	2450	const char *
2630	object::debug_desc () const	2451	object::debug_desc () const
2631	{	2452	{
2632	static char info[256 * 4];	2453	static char info[3][256 * 4];
		2454	static int info_idx;
		2455
2633	return debug_desc (info);	2456	return debug_desc (info [++info_idx % 3]);
2634	}	2457	}
2635		2458
		2459	struct region *
		2460	object::region () const
		2461	{
		2462	return map ? map->region (x, y)
		2463	: region::default_region ();
		2464	}
		2465
		2466	const materialtype_t *
		2467	object::dominant_material () const
		2468	{
		2469	if (materialtype_t *mt = name_to_material (materialname))
		2470	return mt;
		2471
		2472	return name_to_material (shstr_unknown);
		2473	}
		2474
		2475	void
		2476	object::open_container (object *new_container)
		2477	{
		2478	if (container == new_container)
		2479	return;
		2480
		2481	object *old_container = container;
		2482
		2483	if (old_container)
		2484	{
		2485	if (INVOKE_OBJECT (CLOSE, old_container, ARG_OBJECT (this)))
		2486	return;
		2487
		2488	#if 0
		2489	// remove the "Close old_container" object.
		2490	if (object *closer = old_container->inv)
		2491	if (closer->type == CLOSE_CON)
		2492	closer->destroy ();
		2493	#endif
		2494
		2495	// make sure the container is available
		2496	esrv_send_item (this, old_container);
		2497
		2498	old_container->flag [FLAG_APPLIED] = false;
		2499	container = 0;
		2500
		2501	// client needs item update to make it work, client bug requires this to be separate
		2502	esrv_update_item (UPD_FLAGS, this, old_container);
		2503
		2504	new_draw_info_format (NDI_UNIQUE, 0, this, "You close %s.", old_container->query_name ());
		2505	play_sound (sound_find ("chest_close"));
		2506	}
		2507
		2508	if (new_container)
		2509	{
		2510	if (INVOKE_OBJECT (OPEN, new_container, ARG_OBJECT (this)))
		2511	return;
		2512
		2513	// TODO: this does not seem to serve any purpose anymore?
		2514	#if 0
		2515	// insert the "Close Container" object.
		2516	if (archetype *closer = new_container->other_arch)
		2517	{
		2518	object *closer = arch_to_object (new_container->other_arch);
		2519	closer->flag [FLAG_NO_MAP_SAVE] = 1;
		2520	new_container->insert (closer);
		2521	}
		2522	#endif
		2523
		2524	new_draw_info_format (NDI_UNIQUE, 0, this, "You open %s.", new_container->query_name ());
		2525
		2526	// make sure the container is available, client bug requires this to be separate
		2527	esrv_send_item (this, new_container);
		2528
		2529	new_container->flag [FLAG_APPLIED] = true;
		2530	container = new_container;
		2531
		2532	// client needs flag change
		2533	esrv_update_item (UPD_FLAGS, this, new_container);
		2534	esrv_send_inventory (this, new_container);
		2535	play_sound (sound_find ("chest_open"));
		2536	}
		2537	// else if (!old_container->env && contr && contr->ns)
		2538	// contr->ns->floorbox_reset ();
		2539	}
		2540
		2541	object *
		2542	object::force_find (shstr_tmp name)
		2543	{
		2544	/* cycle through his inventory to look for the MARK we want to
		2545	* place
		2546	*/
		2547	for (object *tmp = inv; tmp; tmp = tmp->below)
		2548	if (tmp->type == FORCE && tmp->slaying == name)
		2549	return splay (tmp);
		2550
		2551	return 0;
		2552	}
		2553
		2554	object *
		2555	object::force_add (shstr_tmp name, int duration)
		2556	{
		2557	if (object *force = force_find (name))
		2558	force->destroy ();
		2559
		2560	object *force = get_archetype (FORCE_NAME);
		2561
		2562	force->slaying = name;
		2563	force->stats.food = 1;
		2564	force->speed_left = -1.f;
		2565
		2566	force->set_speed (duration ? 1.f / duration : 0.f);
		2567	force->flag [FLAG_IS_USED_UP] = true;
		2568	force->flag [FLAG_APPLIED] = true;
		2569
		2570	return insert (force);
		2571	}
		2572
		2573	void
		2574	object::play_sound (faceidx sound) const
		2575	{
		2576	if (!sound)
		2577	return;
		2578
		2579	if (is_on_map ())
		2580	map->play_sound (sound, x, y);
		2581	else if (object *pl = in_player ())
		2582	pl->contr->play_sound (sound);
		2583	}
		2584
		2585	void
		2586	object::say_msg (const char *msg) const
		2587	{
		2588	if (is_on_map ())
		2589	map->say_msg (msg, x, y);
		2590	else if (object *pl = in_player ())
		2591	pl->contr->play_sound (sound);
		2592	}
		2593
		2594	void
		2595	object::make_noise ()
		2596	{
		2597	// we do not model noise in the map, so instead put
		2598	// a temporary light into the noise source
		2599	// could use the map instead, but that's less reliable for our
		2600	// goal, which is to make invisibility a bit harder to exploit
		2601
		2602	// currently only works sensibly for players
		2603	if (!is_player ())
		2604	return;
		2605
		2606	// find old force, or create new one
		2607	object *force = force_find (shstr_noise_force);
		2608
		2609	if (force)
		2610	force->speed_left = -1.f; // patch old speed up
		2611	else
		2612	{
		2613	force = archetype::get (shstr_noise_force);
		2614
		2615	force->slaying = shstr_noise_force;
		2616	force->stats.food = 1;
		2617	force->speed_left = -1.f;
		2618
		2619	force->set_speed (1.f / 4.f);
		2620	force->flag [FLAG_IS_USED_UP] = true;
		2621	force->flag [FLAG_APPLIED] = true;
		2622
		2623	insert (force);
		2624	}
		2625	}
		2626

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