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Comparing deliantra/server/common/object.C (file contents):
Revision 1.122 by root, Wed Jan 24 22:42:48 2007 UTC vs.
Revision 1.293 by root, Wed Oct 21 00:44:39 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 it under
9	* it under the terms of the GNU General Public License as published by	9	* the terms of the Affero GNU General Public License as published by the
10	* the Free Software Foundation; either version 2 of the License, or	10	* Free Software Foundation, either version 3 of the License, or (at your
11	* (at your option) any later version.	11	* 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 Affero GNU General Public License
19	* along with this program; if not, write to the Free Software	19	* and the GNU General Public License along with this program. If not, see
20	* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.	20	* <http://www.gnu.org/licenses/>.
21	*	21	*
22	* The authors can be reached via e-mail at <crossfire@schmorp.de>	22	* The authors can be reached via e-mail to <support@deliantra.net>
23	*/	23	*/
24		24
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>	25	#include <global.h>
29	#include <stdio.h>	26	#include <stdio.h>
30	#include <sys/types.h>	27	#include <sys/types.h>
31	#include <sys/uio.h>	28	#include <sys/uio.h>
32	#include <object.h>	29	#include <object.h>
33	#include <funcpoint.h>	30	#include <sproto.h>
34	#include <loader.h>	31	#include <loader.h>
35		32
36	#include <bitset>	33	#include <bitset>
37		34
38	int nrofallocobjects = 0;	35	UUID UUID::cur;
39	static UUID uuid;	36	static uint64_t seq_next_save;
40	const uint64 UUID_SKIP = 1<<19;	37	static const uint64 UUID_GAP = 1<<19;
		38	uint32_t mapspace::smellcount = 10000;
41		39
42	objectvec objects;	40	objectvec objects;
43	activevec actives;	41	activevec actives;
44		42
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,	43	short freearr_x[SIZEOFFREE] = {
		44	0,
		45	0, 1, 1, 1, 0, -1, -1, -1,
		46	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	47	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	};	48	};
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,	49	short freearr_y[SIZEOFFREE] = {
		50	0,
		51	-1, -1, 0, 1, 1, 1, 0, -1,
		52	-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	53	-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	};	54	};
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,	55	int maxfree[SIZEOFFREE] = {
		56	0,
		57	9, 10, 13, 14, 17, 18, 21, 22,
		58	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	59	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	};	60	};
54	int freedir[SIZEOFFREE] = {	61	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,	62	0,
		63	1, 2, 3, 4, 5, 6, 7, 8,
		64	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	65	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	};	66	};
58		67
59	static void	68	static void
60	write_uuid (void)	69	write_uuid (uval64 skip, bool sync)
61	{	70	{
62	char filename1[MAX_BUF], filename2[MAX_BUF];	71	CALL_BEGIN (2);
63		72	CALL_ARG_SV (newSVval64 (skip));
64	sprintf (filename1, "%s/uuid", settings.localdir);	73	CALL_ARG_SV (boolSV (sync));
65	sprintf (filename2, "%s/uuid~", settings.localdir);	74	CALL_CALL ("cf::write_uuid", G_DISCARD);
66		75	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	}	76	}
79		77
80	static void	78	static void
81	read_uuid (void)	79	read_uuid (void)
82	{	80	{
83	char filename[MAX_BUF];	81	char filename[MAX_BUF];
84		82
85	sprintf (filename, "%s/uuid", settings.localdir);	83	sprintf (filename, "%s/uuid", settings.localdir);
		84
		85	seq_next_save = 0;
86		86
87	FILE *fp;	87	FILE *fp;
88		88
89	if (!(fp = fopen (filename, "r")))	89	if (!(fp = fopen (filename, "r")))
90	{	90	{
91	if (errno == ENOENT)	91	if (errno == ENOENT)
92	{	92	{
93	LOG (llevInfo, "RESET uid to 1\n");	93	LOG (llevInfo, "RESET uid to 1\n");
94	uuid.seq = 0;	94	UUID::cur.seq = 0;
95	write_uuid ();	95	write_uuid (UUID_GAP, true);
96	return;	96	return;
97	}	97	}
98		98
99	LOG (llevError, "FATAL: cannot open %s for reading!\n", filename);	99	LOG (llevError, "FATAL: cannot open %s for reading!\n", filename);
100	_exit (1);	100	_exit (1);
101	}	101	}
102		102
103	int version;	103	UUID::BUF buf;
104	unsigned long long uid;	104	buf[0] = 0;
105	if (2 != fscanf (fp, "<%d,%llx>\n", &version, &uid) || version != 1)	105	fgets (buf, sizeof (buf), fp);
		106
		107	if (!UUID::cur.parse (buf))
106	{	108	{
107	LOG (llevError, "FATAL: error reading uid from %s!\n", filename);	109	LOG (llevError, "FATAL: error reading uid from %s (%s)!\n", filename, buf);
108	_exit (1);	110	_exit (1);
109	}	111	}
110		112
111	uuid.seq = uid;	113	LOG (llevDebug, "read UUID: %s\n", UUID::cur.c_str ());
112	write_uuid ();	114
113	LOG (llevDebug, "read UID: %" PRId64 "\n", uid);	115	write_uuid (UUID_GAP, true);
114	fclose (fp);	116	fclose (fp);
115	}	117	}
116		118
117	UUID	119	UUID
118	gen_uuid ()	120	UUID::gen ()
119	{	121	{
120	UUID uid;	122	UUID uid;
121		123
122	uid.seq = ++uuid.seq;	124	uid.seq = ++cur.seq;
123		125
124	if (!(uuid.seq & (UUID_SKIP - 1)))	126	if (expect_false (cur.seq >= seq_next_save))
125	write_uuid ();	127	{
		128	seq_next_save = UUID::cur.seq + (UUID_GAP >> 1);
		129	write_uuid (UUID_GAP, false);
		130	}
		131
126		132
127	return uid;	133	return uid;
128	}	134	}
129		135
130	void	136	void
131	init_uuid ()	137	UUID::init ()
132	{	138	{
133	read_uuid ();	139	read_uuid ();
134	}	140	}
135		141
136	/* Returns TRUE if every key_values in wants has a partner with the same value in has. */	142	/* Returns TRUE if every key_values in wants has a partner with the same value in has. */
137	static int	143	static bool
138	compare_ob_value_lists_one (const object *wants, const object *has)	144	compare_ob_value_lists_one (const object *wants, const object *has)
139	{	145	{
140	key_value *wants_field;
141
142	/* n-squared behaviour (see get_ob_key_link()), but I'm hoping both	146	/* 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	147	* objects with lists are rare, and lists stay short. If not, use a
144	* different structure or at least keep the lists sorted...	148	* different structure or at least keep the lists sorted...
145	*/	149	*/
146		150
147	/* For each field in wants, */	151	/* For each field in wants, */
148	for (wants_field = wants->key_values; wants_field; wants_field = wants_field->next)	152	for (key_value *kv = wants->key_values; kv; kv = kv->next)
149	{	153	if (has->kv_get (kv->key) != kv->value)
150	key_value *has_field;	154	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		155
171	/* If we get here, every field in wants has a matching field in has. */	156	/* If we get here, every field in wants has a matching field in has. */
172	return TRUE;	157	return true;
173	}	158	}
174		159
175	/* Returns TRUE if ob1 has the same key_values as ob2. */	160	/* Returns TRUE if ob1 has the same key_values as ob2. */
176	static int	161	static bool
177	compare_ob_value_lists (const object *ob1, const object *ob2)	162	compare_ob_value_lists (const object *ob1, const object *ob2)
178	{	163	{
179	/* However, there may be fields in has which aren't partnered in wants,	164	/* However, there may be fields in has which aren't partnered in wants,
180	* so we need to run the comparison *twice*. :(	165	* so we need to run the comparison *twice*. :(
181	*/	166	*/
182	return compare_ob_value_lists_one (ob1, ob2) && compare_ob_value_lists_one (ob2, ob1);	167	return compare_ob_value_lists_one (ob1, ob2)
		168	&& compare_ob_value_lists_one (ob2, ob1);
183	}	169	}
184		170
185	/* Function examines the 2 objects given to it, and returns true if	171	/* Function examines the 2 objects given to it, and returns true if
186	* they can be merged together.	172	* they can be merged together.
187	*	173	*
…		…
202	|| ob1->speed != ob2->speed	188	|| ob1->speed != ob2->speed
203	|| ob1->value != ob2->value	189	|| ob1->value != ob2->value
204	|| ob1->name != ob2->name)	190	|| ob1->name != ob2->name)
205	return 0;	191	return 0;
206		192
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	193	/* Do not merge objects if nrof would overflow, assume nrof
209	* value could not be stored in a sint32 (which unfortunately sometimes is	194	* is always 0 .. 2**31-1 */
210	* used to store nrof).	195	if (ob1->nrof > 0x7fffffff - ob2->nrof)
211	*/
212	if (ob1->nrof + ob2->nrof >= 1UL << 31)
213	return 0;	196	return 0;
214		197
215	/* If the objects have been identified, set the BEEN_APPLIED flag.	198	/* 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	199	* 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	200	* 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	201	* are not equal - just if it has been identified, the been_applied
219	* flags lose any meaning.	202	* flags lose any meaning.
220	*/	203	*/
221	if (QUERY_FLAG (ob1, FLAG_IDENTIFIED))	204	if (QUERY_FLAG (ob1, FLAG_IDENTIFIED))
222	SET_FLAG (ob1, FLAG_BEEN_APPLIED);	205	SET_FLAG (ob1, FLAG_BEEN_APPLIED);
223		206
224	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))	207	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))
225	SET_FLAG (ob2, FLAG_BEEN_APPLIED);	208	SET_FLAG (ob2, FLAG_BEEN_APPLIED);
226		209
227	if ((ob1->flag ^ ob2->flag).reset (FLAG_INV_LOCKED).reset (FLAG_CLIENT_SENT).any ()	210	if (ob1->arch->archname != ob2->arch->archname
228	|| ob1->arch != ob2->arch
229	|| ob1->name != ob2->name	211	|| ob1->name != ob2->name
230	|| ob1->title != ob2->title	212	|| ob1->title != ob2->title
231	|| ob1->msg != ob2->msg	213	|| ob1->msg != ob2->msg
232	|| ob1->weight != ob2->weight	214	|| 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	215	|| ob1->attacktype != ob2->attacktype
236	|| ob1->magic != ob2->magic	216	|| ob1->magic != ob2->magic
237	|| ob1->slaying != ob2->slaying	217	|| ob1->slaying != ob2->slaying
238	|| ob1->skill != ob2->skill	218	|| ob1->skill != ob2->skill
239	|| ob1->value != ob2->value	219	|| ob1->value != ob2->value
240	|| ob1->animation_id != ob2->animation_id	220	|| ob1->animation_id != ob2->animation_id
		221	|| (ob1->face != ob2->face && !ob1->animation_id) // face and animation are dependent on each other
241	|| ob1->client_type != ob2->client_type	222	|| ob1->client_type != ob2->client_type
242	|| ob1->materialname != ob2->materialname	223	|| ob1->materialname != ob2->materialname
243	|| ob1->lore != ob2->lore	224	|| ob1->lore != ob2->lore
244	|| ob1->subtype != ob2->subtype	225	|| ob1->subtype != ob2->subtype
245	|| ob1->move_type != ob2->move_type	226	|| ob1->move_type != ob2->move_type
246	|| ob1->move_block != ob2->move_block	227	|| ob1->move_block != ob2->move_block
247	|| ob1->move_allow != ob2->move_allow	228	|| ob1->move_allow != ob2->move_allow
248	|| ob1->move_on != ob2->move_on	229	|| ob1->move_on != ob2->move_on
249	|| ob1->move_off != ob2->move_off	230	|| ob1->move_off != ob2->move_off
250	|| ob1->move_slow != ob2->move_slow	231	|| ob1->move_slow != ob2->move_slow
251	|| ob1->move_slow_penalty != ob2->move_slow_penalty)	232	|| ob1->move_slow_penalty != ob2->move_slow_penalty
		233	|| memcmp (&ob1->resist, &ob2->resist, sizeof (ob1->resist))
		234	|| memcmp (&ob1->stats , &ob2->stats , sizeof (ob1->stats)))
252	return 0;	235	return 0;
253		236
		237	if ((ob1->flag ^ ob2->flag)
		238	.reset (FLAG_INV_LOCKED)
		239	.reset (FLAG_REMOVED)
		240	.any ())
		241	return 0;
		242
254	/* This is really a spellbook check - really, we should	243	/* This is really a spellbook check - we should in general
255	* check all objects in the inventory.	244	* not merge objects with real inventories, as splitting them
		245	* is hard.
256	*/	246	*/
257	if (ob1->inv || ob2->inv)	247	if (ob1->inv || ob2->inv)
258	{	248	{
259	/* if one object has inventory but the other doesn't, not equiv */	249	if (!(ob1->inv && ob2->inv))
260	if ((ob1->inv && !ob2->inv) || (ob2->inv && !ob1->inv))	250	return 0; /* inventories differ in length */
261	return 0;
262		251
263	/* Now check to see if the two inventory objects could merge */	252	if (ob1->inv->below || ob2->inv->below)
		253	return 0; /* more than one object in inv */
		254
264	if (!object::can_merge (ob1->inv, ob2->inv))	255	if (!object::can_merge (ob1->inv, ob2->inv))
265	return 0;	256	return 0; /* inventory objects differ */
266		257
267	/* inventory ok - still need to check rest of this object to see	258	/* inventory ok - still need to check rest of this object to see
268	* if it is valid.	259	* if it is valid.
269	*/	260	*/
270	}	261	}
…		…
289	if (ob1->level != ob2->level)	280	if (ob1->level != ob2->level)
290	return 0;	281	return 0;
291	break;	282	break;
292	}	283	}
293		284
294	if (ob1->key_values != NULL || ob2->key_values != NULL)	285	if (ob1->key_values || ob2->key_values)
295	{	286	{
296	/* At least one of these has key_values. */	287	/* At least one of these has key_values. */
297	if ((ob1->key_values == NULL) != (ob2->key_values == NULL))	288	if ((!ob1->key_values) != (!ob2->key_values))
298	/* One has fields, but the other one doesn't. */	289	return 0; /* One has fields, but the other one doesn't. */
		290
		291	if (!compare_ob_value_lists (ob1, ob2))
299	return 0;	292	return 0;
300	else if (!compare_ob_value_lists (ob1, ob2))
301	return 0;
302	}	293	}
303		294
304	//TODO: generate an event or call into perl for additional checks
305	if (ob1->self || ob2->self)	295	if (ob1->self || ob2->self)
306	{	296	{
307	ob1->optimise ();	297	ob1->optimise ();
308	ob2->optimise ();	298	ob2->optimise ();
309		299
310	if (ob1->self || ob2->self)	300	if (ob1->self || ob2->self)
		301	{
		302	int k1 = ob1->self ? HvTOTALKEYS (ob1->self) : 0;
		303	int k2 = ob2->self ? HvTOTALKEYS (ob2->self) : 0;
		304
		305	if (k1 != k2)
311	return 0;	306	return 0;
		307
		308	if (k1 == 0)
		309	return 1;
		310
		311	if (!cfperl_can_merge (ob1, ob2))
		312	return 0;
		313	}
312	}	314	}
313		315
314	/* Everything passes, must be OK. */	316	/* Everything passes, must be OK. */
315	return 1;	317	return 1;
316	}	318	}
317		319
		320	// find player who can see this object
		321	object *
		322	object::visible_to () const
		323	{
		324	if (client_visible () && !flag [FLAG_REMOVED])
		325	{
		326	// see if we are in a container of sorts
		327	if (env)
		328	{
		329	// the player inventory itself is always visible
		330	if (env->is_player ())
		331	return env;
		332
		333	// else a player could have our env open
		334	object *envest = env->outer_env_or_self ();
		335
		336	// the player itself is always on a map, so we will find him here
		337	// even if our inv is in a player.
		338	if (envest->is_on_map ())
		339	if (object *pl = envest->ms ().player ())
		340	if (pl->container_ () == env)
		341	return pl;
		342	}
		343	else
		344	{
		345	// maybe there is a player standing on the same mapspace
		346	// this will catch the case where "this" is a player
		347	if (object *pl = ms ().player ())
		348	if ((pl->contr->ns && !pl->container_ () && !pl->contr->ns->update_look)
		349	|| pl->container_ () == this)
		350	return pl;
		351	}
		352	}
		353
		354	return 0;
		355	}
		356
		357	// adjust weight per container type ("of holding")
		358	static sint32
		359	weight_adjust_for (object *op, sint32 weight)
		360	{
		361	return op->type == CONTAINER
		362	? lerp (weight, 0, 100, 0, 100 - op->stats.Str)
		363	: weight;
		364	}
		365
318	/*	366	/*
		367	* adjust_weight(object, weight) adds the specified weight to an object,
		368	* and also updates how much the environment(s) is/are carrying.
		369	*/
		370	static void
		371	adjust_weight (object *op, sint32 weight)
		372	{
		373	while (op)
		374	{
		375	// adjust by actual difference to account for rounding errors
		376	// i.e. (w2 - w1) / f != w2 / f - w1 / f and the latter is correct
		377	weight = weight_adjust_for (op, op->carrying)
		378	- weight_adjust_for (op, op->carrying - weight);
		379
		380	if (!weight)
		381	return;
		382
		383	op->carrying += weight;
		384
		385	if (object *pl = op->visible_to ())
		386	if (pl != op) // player is handled lazily
		387	esrv_update_item (UPD_WEIGHT, pl, op);
		388
		389	op = op->env;
		390	}
		391	}
		392
		393	/*
319	* sum_weight() is a recursive function which calculates the weight	394	* this is a recursive function which calculates the weight
320	* an object is carrying. It goes through in figures out how much	395	* an object is carrying. It goes through op and figures out how much
321	* containers are carrying, and sums it up.	396	* containers are carrying, and sums it up.
322	*/	397	*/
323	long	398	void
324	sum_weight (object *op)	399	object::update_weight ()
325	{	400	{
326	long sum;	401	sint32 sum = 0;
327	object *inv;
328		402
329	for (sum = 0, inv = op->inv; inv != NULL; inv = inv->below)	403	for (object *op = inv; op; op = op->below)
330	{	404	{
331	if (inv->inv)	405	if (op->inv)
332	sum_weight (inv);	406	op->update_weight ();
333	sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1);	407
		408	sum += op->total_weight ();
		409	}
		410
		411	sum = weight_adjust_for (this, sum);
		412
		413	if (sum != carrying)
334	}	414	{
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;	415	carrying = sum;
341		416
342	return sum;	417	if (object *pl = visible_to ())
		418	if (pl != this) // player is handled lazily
		419	esrv_update_item (UPD_WEIGHT, pl, this);
		420	}
343	}	421	}
344		422
345	/**	423	/*
346	* Return the outermost environment object for a given object.	424	* Used by: Server DM commands: dumpbelow, dump. Some error messages.
347	*/	425	*/
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 *	426	char *
364	dump_object (object *op)	427	dump_object (object *op)
365	{	428	{
366	if (!op)	429	if (!op)
367	return strdup ("[NULLOBJ]");	430	return strdup ("[NULLOBJ]");
368		431
369	object_freezer freezer;	432	object_freezer freezer;
370	save_object (freezer, op, 1);	433	op->write (freezer);
371	return freezer.as_string ();	434	return freezer.as_string ();
		435	}
		436
		437	char *
		438	object::as_string ()
		439	{
		440	return dump_object (this);
372	}	441	}
373		442
374	/*	443	/*
375	* get_nearest_part(multi-object, object 2) returns the part of the	444	* get_nearest_part(multi-object, object 2) returns the part of the
376	* multi-object 1 which is closest to the second object.	445	* multi-object 1 which is closest to the second object.
377	* If it's not a multi-object, it is returned.	446	* If it's not a multi-object, it is returned.
378	*/	447	*/
379
380	object *	448	object *
381	get_nearest_part (object *op, const object *pl)	449	get_nearest_part (object *op, const object *pl)
382	{	450	{
383	object *tmp, *closest;	451	object *tmp, *closest;
384	int last_dist, i;	452	int last_dist, i;
385		453
386	if (op->more == NULL)	454	if (!op->more)
387	return op;	455	return op;
		456
388	for (last_dist = distance (op, pl), closest = op, tmp = op->more; tmp != NULL; tmp = tmp->more)	457	for (last_dist = distance (op, pl), closest = op, tmp = op->more;
		458	tmp;
		459	tmp = tmp->more)
389	if ((i = distance (tmp, pl)) < last_dist)	460	if ((i = distance (tmp, pl)) < last_dist)
390	closest = tmp, last_dist = i;	461	closest = tmp, last_dist = i;
		462
391	return closest;	463	return closest;
392	}	464	}
393		465
394	/*	466	/*
395	* Returns the object which has the count-variable equal to the argument.	467	* Returns the object which has the count-variable equal to the argument.
		468	* VERRRY slow.
396	*/	469	*/
397	object *	470	object *
398	find_object (tag_t i)	471	find_object (tag_t i)
399	{	472	{
400	for_all_objects (op)	473	for_all_objects (op)
…		…
411	*/	484	*/
412	object *	485	object *
413	find_object_name (const char *str)	486	find_object_name (const char *str)
414	{	487	{
415	shstr_cmp str_ (str);	488	shstr_cmp str_ (str);
416	object *op;
417		489
		490	if (str_)
418	for_all_objects (op)	491	for_all_objects (op)
419	if (op->name == str_)	492	if (op->name == str_)
420	break;	493	return op;
421		494
422	return op;	495	return 0;
423	}
424
425	void
426	free_all_object_data ()
427	{
428	LOG (llevDebug, "%d allocated objects\n", nrofallocobjects);
429	}	496	}
430		497
431	/*	498	/*
432	* Sets the owner and sets the skill and exp pointers to owner's current	499	* Sets the owner and sets the skill and exp pointers to owner's current
433	* skill and experience objects.	500	* skill and experience objects.
		501	* ACTUALLY NO! investigate! TODO
434	*/	502	*/
435	void	503	void
436	object::set_owner (object *owner)	504	object::set_owner (object *owner)
437	{	505	{
		506	// allow objects which own objects
438	if (!owner)	507	if (owner)
439	return;
440
441	/* next line added to allow objects which own objects */
442	/* Add a check for ownercounts in here, as I got into an endless loop
443	* with the fireball owning a poison cloud which then owned the
444	* fireball. I believe that was caused by one of the objects getting
445	* freed and then another object replacing it. Since the ownercounts
446	* didn't match, this check is valid and I believe that cause is valid.
447	*/
448	while (owner->owner)	508	while (owner->owner)
449	owner = owner->owner;	509	owner = owner->owner;
		510
		511	if (flag [FLAG_FREED])
		512	{
		513	LOG (llevError | logBacktrace, "tried to set owner of %s to %s\n", debug_desc (), owner->debug_desc ());
		514	return;
		515	}
450		516
451	this->owner = owner;	517	this->owner = owner;
		518	}
		519
		520	int
		521	object::slottype () const
		522	{
		523	if (type == SKILL)
		524	{
		525	if (IS_COMBAT_SKILL (subtype)) return slot_combat;
		526	if (IS_RANGED_SKILL (subtype)) return slot_ranged;
		527	}
		528	else
		529	{
		530	if (slot [body_combat].info) return slot_combat;
		531	if (slot [body_range ].info) return slot_ranged;
		532	}
		533
		534	return slot_none;
		535	}
		536
		537	bool
		538	object::change_weapon (object *ob)
		539	{
		540	if (current_weapon == ob)
		541	return true;
		542
		543	if (chosen_skill)
		544	chosen_skill->flag [FLAG_APPLIED] = false;
		545
		546	current_weapon = ob;
		547	chosen_skill = !ob || ob->type == SKILL ? ob : find_skill_by_name (this, ob->skill);
		548
		549	if (chosen_skill)
		550	chosen_skill->flag [FLAG_APPLIED] = true;
		551
		552	update_stats ();
		553
		554	if (ob)
		555	{
		556	// now check wether any body locations became invalid, in which case
		557	// we cannot apply the weapon at the moment.
		558	for (int i = 0; i < NUM_BODY_LOCATIONS; ++i)
		559	if (slot[i].used < 0)
		560	{
		561	current_weapon = chosen_skill = 0;
		562	update_stats ();
		563
		564	new_draw_info_format (NDI_UNIQUE, 0, this,
		565	"You try to balance all your items at once, "
		566	"but the %s is just too much for your body. "
		567	"[You need to unapply some items first - use the 'body' command to see "
		568	"how many items you cna wera on a specific body part.]", &ob->name);
		569	return false;
		570	}
		571
		572	//new_draw_info_format (NDI_UNIQUE, 0, this, "You switch to your %s.", &ob->name);
		573	}
		574	else
		575	;//new_draw_info_format (NDI_UNIQUE, 0, this, "You unwield your weapons.");
		576
		577	if (ob && !ob->flag [FLAG_APPLIED] && ob->type != SPELL)
		578	{
		579	LOG (llevError | logBacktrace, "%s changed to unapplied weapon %s",
		580	&name, ob->debug_desc ());
		581	return false;
		582	}
		583
		584	return true;
452	}	585	}
453		586
454	/* Zero the key_values on op, decrementing the shared-string	587	/* Zero the key_values on op, decrementing the shared-string
455	* refcounts and freeing the links.	588	* refcounts and freeing the links.
456	*/	589	*/
457	static void	590	static void
458	free_key_values (object *op)	591	free_key_values (object *op)
459	{	592	{
460	for (key_value *i = op->key_values; i != 0;)	593	for (key_value *i = op->key_values; i; )
461	{	594	{
462	key_value *next = i->next;	595	key_value *next = i->next;
463	delete i;	596	delete i;
464		597
465	i = next;	598	i = next;
…		…
477	* will point at garbage.	610	* will point at garbage.
478	*/	611	*/
479	void	612	void
480	object::copy_to (object *dst)	613	object::copy_to (object *dst)
481	{	614	{
482	bool is_freed = QUERY_FLAG (dst, FLAG_FREED);	615	dst->remove ();
483	bool is_removed = QUERY_FLAG (dst, FLAG_REMOVED);
484
485	*(object_copy *)dst = *this;	616	*(object_copy *)dst = *this;
486		617	dst->flag [FLAG_REMOVED] = true;
487	if (is_freed)
488	SET_FLAG (dst, FLAG_FREED);
489
490	if (is_removed)
491	SET_FLAG (dst, FLAG_REMOVED);
492
493	if (speed < 0)
494	dst->speed_left = speed_left - rndm ();
495		618
496	/* Copy over key_values, if any. */	619	/* Copy over key_values, if any. */
497	if (key_values)	620	if (key_values)
498	{	621	{
499	key_value *tail = 0;	622	key_value *tail = 0;
500	key_value *i;
501
502	dst->key_values = 0;	623	dst->key_values = 0;
503		624
504	for (i = key_values; i; i = i->next)	625	for (key_value *i = key_values; i; i = i->next)
505	{	626	{
506	key_value *new_link = new key_value;	627	key_value *new_link = new key_value;
507		628
508	new_link->next = 0;	629	new_link->next = 0;
509	new_link->key = i->key;	630	new_link->key = i->key;
510	new_link->value = i->value;	631	new_link->value = i->value;
511		632
512	/* Try and be clever here, too. */	633	/* Try and be clever here, too. */
513	if (!dst->key_values)	634	if (!dst->key_values)
514	{	635	{
…		…
521	tail = new_link;	642	tail = new_link;
522	}	643	}
523	}	644	}
524	}	645	}
525		646
526	dst->set_speed (dst->speed);	647	if (speed < 0)
		648	dst->speed_left -= rndm ();
		649
		650	dst->activate ();
		651	}
		652
		653	void
		654	object::instantiate ()
		655	{
		656	if (!uuid.seq) // HACK
		657	uuid = UUID::gen ();
		658
		659	speed_left = -0.1f;
		660	/* copy the body_info to the body_used - this is only really
		661	* need for monsters, but doesn't hurt to do it for everything.
		662	* by doing so, when a monster is created, it has good starting
		663	* values for the body_used info, so when items are created
		664	* for it, they can be properly equipped.
		665	*/
		666	for (int i = NUM_BODY_LOCATIONS; i--; )
		667	slot[i].used = slot[i].info;
		668
		669	attachable::instantiate ();
527	}	670	}
528		671
529	object *	672	object *
530	object::clone ()	673	object::clone ()
531	{	674	{
532	object *neu = create ();	675	object *neu = create ();
533	copy_to (neu);	676	copy_to (neu);
		677	neu->map = map; // not copied by copy_to
534	return neu;	678	return neu;
535	}	679	}
536		680
537	/*	681	/*
538	* If an object with the IS_TURNABLE() flag needs to be turned due	682	* If an object with the IS_TURNABLE() flag needs to be turned due
…		…
589	* UP_OBJ_FACE: only the objects face has changed.	733	* UP_OBJ_FACE: only the objects face has changed.
590	*/	734	*/
591	void	735	void
592	update_object (object *op, int action)	736	update_object (object *op, int action)
593	{	737	{
594	MoveType move_on, move_off, move_block, move_slow;	738	if (!op)
595
596	if (op == NULL)
597	{	739	{
598	/* this should never happen */	740	/* this should never happen */
599	LOG (llevDebug, "update_object() called for NULL object.\n");	741	LOG (llevError | logBacktrace, "update_object() called for NULL object.\n");
600	return;	742	return;
601	}	743	}
602		744
603	if (op->env)	745	if (!op->is_on_map ())
604	{	746	{
605	/* Animation is currently handled by client, so nothing	747	/* Animation is currently handled by client, so nothing
606	* to do in this case.	748	* to do in this case.
607	*/	749	*/
608	return;	750	return;
609	}	751	}
610
611	/* If the map is saving, don't do anything as everything is
612	* going to get freed anyways.
613	*/
614	if (!op->map || op->map->in_memory == MAP_SAVING)
615	return;
616		752
617	/* make sure the object is within map boundaries */	753	/* make sure the object is within map boundaries */
618	if (op->x < 0 || op->x >= op->map->width || op->y < 0 || op->y >= op->map->height)	754	if (op->x < 0 || op->x >= op->map->width || op->y < 0 || op->y >= op->map->height)
619	{	755	{
620	LOG (llevError, "update_object() called for object out of map!\n");	756	LOG (llevError, "update_object() called for object out of map!\n");
…		…
631	else if (action == UP_OBJ_INSERT)	767	else if (action == UP_OBJ_INSERT)
632	{	768	{
633	// this is likely overkill, TODO: revisit (schmorp)	769	// this is likely overkill, TODO: revisit (schmorp)
634	if ((QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(m.flags_ & P_BLOCKSVIEW))	770	if ((QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(m.flags_ & P_BLOCKSVIEW))
635	|| (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(m.flags_ & P_NO_MAGIC))	771	|| (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(m.flags_ & P_NO_MAGIC))
636	|| (op->type == PLAYER && !(m.flags_ & P_PLAYER))	772	|| (op->is_player () && !(m.flags_ & P_PLAYER))
637	|| (op->type == SAFE_GROUND && !(m.flags_ & P_SAFE))	773	|| (op->type == SAFE_GROUND && !(m.flags_ & P_SAFE))
638	|| (QUERY_FLAG (op, FLAG_ALIVE) && !(m.flags_ & P_IS_ALIVE))	774	|| (QUERY_FLAG (op, FLAG_ALIVE) && !(m.flags_ & P_IS_ALIVE))
639	|| (QUERY_FLAG (op, FLAG_DAMNED) && !(m.flags_ & P_NO_CLERIC))	775	|| (QUERY_FLAG (op, FLAG_DAMNED) && !(m.flags_ & P_NO_CLERIC))
640	|| (m.move_on | op->move_on ) != m.move_on	776	|| (m.move_on | op->move_on ) != m.move_on
641	|| (m.move_off | op->move_off ) != m.move_off	777	|| (m.move_off | op->move_off ) != m.move_off
642	|| (m.move_slow | op->move_slow) != m.move_slow	778	|| (m.move_slow | op->move_slow) != m.move_slow
643	/* This isn't perfect, but I don't expect a lot of objects to	779	/* This isn't perfect, but I don't expect a lot of objects to
644	* to have move_allow right now.	780	* have move_allow right now.
645	*/	781	*/
646	|| ((m.move_block | op->move_block) & ~op->move_allow) != m.move_block	782	|| ((m.move_block | op->move_block) & ~op->move_allow) != m.move_block
647	|| 1) // the above is not strong enough a test to skip updating. los maybe? TODO (Schmorp)	783	|| 1) // the above is not strong enough a test to skip updating. los maybe? TODO (Schmorp)
648	m.flags_ = 0;	784	m.invalidate ();
649	}	785	}
650	/* if the object is being removed, we can't make intelligent	786	/* if the object is being removed, we can't make intelligent
651	* decisions, because remove_ob can't really pass the object	787	* decisions, because remove_ob can't really pass the object
652	* that is being removed.	788	* that is being removed.
653	*/	789	*/
654	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)	790	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)
655	m.flags_ = 0;	791	m.invalidate ();
656	else if (action == UP_OBJ_FACE)	792	else if (action == UP_OBJ_FACE)
657	/* Nothing to do for that case */ ;	793	/* Nothing to do for that case */ ;
658	else	794	else
659	LOG (llevError, "update_object called with invalid action: %d\n", action);	795	LOG (llevError, "update_object called with invalid action: %d\n", action);
660		796
…		…
664		800
665	object::object ()	801	object::object ()
666	{	802	{
667	SET_FLAG (this, FLAG_REMOVED);	803	SET_FLAG (this, FLAG_REMOVED);
668		804
669	expmul = 1.0;	805	//expmul = 1.0; declared const for the time being
670	face = blank_face;	806	face = blank_face;
671	}	807	}
672		808
673	object::~object ()	809	object::~object ()
674	{	810	{
…		…
680	static int object_count;	816	static int object_count;
681		817
682	void object::link ()	818	void object::link ()
683	{	819	{
684	assert (!index);//D	820	assert (!index);//D
685	uuid = gen_uuid ();	821	uuid = UUID::gen ();
686	count = ++object_count;	822	count = ++object_count;
687		823
688	refcnt_inc ();	824	refcnt_inc ();
689	objects.insert (this);	825	objects.insert (this);
690	}	826	}
…		…
704	/* If already on active list, don't do anything */	840	/* If already on active list, don't do anything */
705	if (active)	841	if (active)
706	return;	842	return;
707		843
708	if (has_active_speed ())	844	if (has_active_speed ())
		845	{
		846	if (flag [FLAG_FREED])
		847	LOG (llevError | logBacktrace, "BUG: tried to activate freed object %s\n", debug_desc ());//D
		848
709	actives.insert (this);	849	actives.insert (this);
		850	}
710	}	851	}
711		852
712	void	853	void
713	object::activate_recursive ()	854	object::activate_recursive ()
714	{	855	{
…		…
763	object::destroy_inv (bool drop_to_ground)	904	object::destroy_inv (bool drop_to_ground)
764	{	905	{
765	// need to check first, because the checks below might segfault	906	// need to check first, because the checks below might segfault
766	// as we might be on an invalid mapspace and crossfire code	907	// as we might be on an invalid mapspace and crossfire code
767	// is too buggy to ensure that the inventory is empty.	908	// is too buggy to ensure that the inventory is empty.
768	// corollary: if you create arrows etc. with stuff in tis inventory,	909	// corollary: if you create arrows etc. with stuff in its inventory,
769	// cf will crash below with off-map x and y	910	// cf will crash below with off-map x and y
770	if (!inv)	911	if (!inv)
771	return;	912	return;
772		913
773	/* Only if the space blocks everything do we not process -	914	/* Only if the space blocks everything do we not process -
774	* if some form of movement is allowed, let objects	915	* if some form of movement is allowed, let objects
775	* drop on that space.	916	* drop on that space.
776	*/	917	*/
777	if (!drop_to_ground	918	if (!drop_to_ground
778	|| !map	919	|| !map
779	|| map->in_memory != MAP_IN_MEMORY	920	|| map->in_memory != MAP_ACTIVE
780	|| map->nodrop	921	|| map->no_drop
781	|| ms ().move_block == MOVE_ALL)	922	|| ms ().move_block == MOVE_ALL)
782	{	923	{
783	while (inv)	924	while (inv)
784	{
785	inv->destroy_inv (drop_to_ground);
786	inv->destroy ();	925	inv->destroy ();
787	}
788	}	926	}
789	else	927	else
790	{ /* Put objects in inventory onto this space */	928	{ /* Put objects in inventory onto this space */
791	while (inv)	929	while (inv)
792	{	930	{
…		…
810	object *op = new object;	948	object *op = new object;
811	op->link ();	949	op->link ();
812	return op;	950	return op;
813	}	951	}
814		952
		953	static struct freed_map : maptile
		954	{
		955	freed_map ()
		956	{
		957	path = "<freed objects map>";
		958	name = "/internal/freed_objects_map";
		959	width = 3;
		960	height = 3;
		961	no_drop = 1;
		962	no_reset = 1;
		963
		964	alloc ();
		965	in_memory = MAP_ACTIVE;
		966	}
		967
		968	~freed_map ()
		969	{
		970	destroy ();
		971	}
		972	} freed_map; // freed objects are moved here to avoid crashes
		973
815	void	974	void
816	object::do_destroy ()	975	object::do_destroy ()
817	{	976	{
818	attachable::do_destroy ();
819
820	if (flag [FLAG_IS_LINKED])	977	if (flag [FLAG_IS_LINKED])
821	remove_button_link (this);	978	remove_link ();
822		979
823	if (flag [FLAG_FRIENDLY])	980	if (flag [FLAG_FRIENDLY])
824	remove_friendly_object (this);	981	remove_friendly_object (this);
825		982
826	if (!flag [FLAG_REMOVED])
827	remove ();	983	remove ();
828		984
829	destroy_inv (true);	985	attachable::do_destroy ();
830		986
831	deactivate ();	987	deactivate ();
832	unlink ();	988	unlink ();
833		989
834	flag [FLAG_FREED] = 1;	990	flag [FLAG_FREED] = 1;
835		991
836	// hack to ensure that freed objects still have a valid map	992	// hack to ensure that freed objects still have a valid map
837	{
838	static maptile *freed_map; // freed objects are moved here to avoid crashes
839
840	if (!freed_map)
841	{
842	freed_map = new maptile;
843
844	freed_map->name = "/internal/freed_objects_map";
845	freed_map->width = 3;
846	freed_map->height = 3;
847
848	freed_map->alloc ();
849	freed_map->in_memory = MAP_IN_MEMORY;
850	}
851
852	map = freed_map;	993	map = &freed_map;
853	x = 1;	994	x = 1;
854	y = 1;	995	y = 1;
855	}
856
857	head = 0;
858		996
859	if (more)	997	if (more)
860	{	998	{
861	more->destroy ();	999	more->destroy ();
862	more = 0;	1000	more = 0;
863	}	1001	}
864		1002
		1003	head = 0;
		1004
865	// clear those pointers that likely might have circular references to us	1005	// clear those pointers that likely might cause circular references
866	owner = 0;	1006	owner = 0;
867	enemy = 0;	1007	enemy = 0;
868	attacked_by = 0;	1008	attacked_by = 0;
		1009	current_weapon = 0;
869	}	1010	}
870		1011
871	void	1012	void
872	object::destroy (bool destroy_inventory)	1013	object::destroy ()
873	{	1014	{
874	if (destroyed ())	1015	if (destroyed ())
875	return;	1016	return;
876		1017
877	if (destroy_inventory)	1018	if (!is_head () && !head->destroyed ())
		1019	{
		1020	LOG (llevError | logBacktrace, "tried to destroy the tail of an object");
		1021	head->destroy ();
		1022	return;
		1023	}
		1024
878	destroy_inv (false);	1025	destroy_inv (false);
		1026
		1027	if (is_head ())
		1028	if (sound_destroy)
		1029	play_sound (sound_destroy);
		1030	else if (flag [FLAG_MONSTER])
		1031	play_sound (sound_find ("monster_destroy")); // quick hack, too lazy to create a generic mechanism
879		1032
880	attachable::destroy ();	1033	attachable::destroy ();
881	}
882
883	/*
884	* sub_weight() recursively (outwards) subtracts a number from the
885	* weight of an object (and what is carried by it's environment(s)).
886	*/
887	void
888	sub_weight (object *op, signed long weight)
889	{
890	while (op != NULL)
891	{
892	if (op->type == CONTAINER)
893	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
894
895	op->carrying -= weight;
896	op = op->env;
897	}
898	}	1034	}
899		1035
900	/* op->remove ():	1036	/* op->remove ():
901	* This function removes the object op from the linked list of objects	1037	* This function removes the object op from the linked list of objects
902	* which it is currently tied to. When this function is done, the	1038	* which it is currently tied to. When this function is done, the
903	* object will have no environment. If the object previously had an	1039	* object will have no environment. If the object previously had an
904	* environment, the x and y coordinates will be updated to	1040	* environment, the x and y coordinates will be updated to
905	* the previous environment.	1041	* the previous environment.
906	* Beware: This function is called from the editor as well!
907	*/	1042	*/
908	void	1043	void
909	object::remove_slow ()	1044	object::do_remove ()
910	{	1045	{
911	object *tmp, *last = 0;	1046	if (flag [FLAG_REMOVED])
912	object *otmp;
913
914	if (QUERY_FLAG (this, FLAG_REMOVED))
915	return;	1047	return;
916		1048
917	SET_FLAG (this, FLAG_REMOVED);
918	INVOKE_OBJECT (REMOVE, this);	1049	INVOKE_OBJECT (REMOVE, this);
		1050
		1051	flag [FLAG_REMOVED] = true;
919		1052
920	if (more)	1053	if (more)
921	more->remove ();	1054	more->remove ();
922		1055
923	/*	1056	/*
924	* In this case, the object to be removed is in someones	1057	* In this case, the object to be removed is in someones
925	* inventory.	1058	* inventory.
926	*/	1059	*/
927	if (env)	1060	if (env)
928	{	1061	{
929	if (nrof)	1062	flag [FLAG_REMOVED] = false; // hack around the issue of visible_to checking flag_removed
930	sub_weight (env, weight * nrof);	1063	if (object *pl = visible_to ())
931	else	1064	esrv_del_item (pl->contr, count);
932	sub_weight (env, weight + carrying);	1065	flag [FLAG_REMOVED] = true; // hack around the issue of visible_to checking flag_removed
		1066
		1067	adjust_weight (env, -total_weight ());
		1068
		1069	object *pl = in_player ();
		1070
		1071	/* we set up values so that it could be inserted into
		1072	* the map, but we don't actually do that - it is up
		1073	* to the caller to decide what we want to do.
		1074	*/
		1075	map = env->map;
		1076	x = env->x;
		1077	y = env->y;
		1078
		1079	// make sure cmov optimisation is applicable
		1080	*(above ? &above->below : &env->inv) = below;
		1081	*(below ? &below->above : &above ) = above; // &above is just a dummy
		1082
		1083	above = 0;
		1084	below = 0;
		1085	env = 0;
933		1086
934	/* NO_FIX_PLAYER is set when a great many changes are being	1087	/* NO_FIX_PLAYER is set when a great many changes are being
935	* made to players inventory. If set, avoiding the call	1088	* made to players inventory. If set, avoiding the call
936	* to save cpu time.	1089	* to save cpu time.
937	*/	1090	*/
938	if ((otmp = in_player ()) && otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))	1091	if (pl)
		1092	if (pl->is_player () && (glow_radius || !QUERY_FLAG (pl, FLAG_NO_FIX_PLAYER)))
		1093	{
939	otmp->update_stats ();	1094	pl->update_stats ();
940		1095
941	if (above)	1096	if (glow_radius && pl->is_on_map ())
942	above->below = below;	1097	update_all_los (pl->map, pl->x, pl->y);
943	else	1098	}
944	env->inv = below;
945
946	if (below)
947	below->above = above;
948
949	/* we set up values so that it could be inserted into
950	* the map, but we don't actually do that - it is up
951	* to the caller to decide what we want to do.
952	*/
953	x = env->x, y = env->y;
954	map = env->map;
955	above = 0, below = 0;
956	env = 0;
957	}	1099	}
958	else if (map)	1100	else if (map)
959	{	1101	{
960	if (type == PLAYER)
961	{
962	--map->players;
963	map->touch ();
964	}
965
966	map->dirty = true;	1102	map->dirty = true;
967	mapspace &ms = this->ms ();	1103	mapspace &ms = this->ms ();
968		1104
		1105	if (object *pl = ms.player ())
		1106	{
		1107	if (is_player ())
		1108	{
		1109	if (!flag [FLAG_WIZPASS])
		1110	ms.smell = ++mapspace::smellcount; // remember the smell of the player
		1111
		1112	// leaving a spot always closes any open container on the ground
		1113	if (container && !container->env)
		1114	// this causes spurious floorbox updates, but it ensures
		1115	// that the CLOSE event is being sent.
		1116	close_container ();
		1117
		1118	--map->players;
		1119	map->touch ();
		1120	}
		1121	else if (pl->container_ () == this)
		1122	{
		1123	// removing a container should close it
		1124	close_container ();
		1125	}
		1126
		1127	esrv_del_item (pl->contr, count);
		1128	}
		1129
969	/* link the object above us */	1130	/* link the object above us */
970	if (above)	1131	// re-link, make sure compiler can easily use cmove
971	above->below = below;	1132	*(above ? &above->below : &ms.top) = below;
972	else	1133	*(below ? &below->above : &ms.bot) = above;
973	ms.top = below; /* we were top, set new top */
974
975	/* Relink the object below us, if there is one */
976	if (below)
977	below->above = above;
978	else
979	{
980	/* Nothing below, which means we need to relink map object for this space
981	* use translated coordinates in case some oddness with map tiling is
982	* evident
983	*/
984	if (GET_MAP_OB (map, x, y) != this)
985	LOG (llevError, "remove_ob: GET_MAP_OB does not return object to be removed even though it appears to be on the bottom? %s\n", debug_desc ());
986
987	ms.bot = above; /* goes on above it. */
988	}
989		1134
990	above = 0;	1135	above = 0;
991	below = 0;	1136	below = 0;
992		1137
		1138	ms.invalidate ();
		1139
993	if (map->in_memory == MAP_SAVING)	1140	if (map->in_memory == MAP_SAVING)
994	return;	1141	return;
995		1142
996	int check_walk_off = !flag [FLAG_NO_APPLY];	1143	int check_walk_off = !flag [FLAG_NO_APPLY];
997		1144
998	for (tmp = ms.bot; tmp; tmp = tmp->above)	1145	if (object *pl = ms.player ())
999	{	1146	{
1000	/* No point updating the players look faces if he is the object	1147	if (pl->container_ () == this)
1001	* being removed.
1002	*/
1003
1004	if (tmp->type == PLAYER && tmp != this)
1005	{
1006	/* If a container that the player is currently using somehow gets	1148	/* If a container that the player is currently using somehow gets
1007	* removed (most likely destroyed), update the player view	1149	* removed (most likely destroyed), update the player view
1008	* appropriately.	1150	* appropriately.
1009	*/	1151	*/
1010	if (tmp->container == this)	1152	pl->close_container ();
1011	{
1012	flag [FLAG_APPLIED] = 0;
1013	tmp->container = 0;
1014	}
1015		1153
		1154	//TODO: the floorbox prev/next might need updating
		1155	//esrv_del_item (pl->contr, count);
		1156	//TODO: update floorbox to preserve ordering
1016	if (tmp->contr->ns)	1157	if (pl->contr->ns)
1017	tmp->contr->ns->floorbox_update ();	1158	pl->contr->ns->floorbox_update ();
		1159	}
		1160
		1161	if (check_walk_off)
		1162	for (object *above, *tmp = ms.bot; tmp; tmp = above)
		1163	{
		1164	above = tmp->above;
		1165
		1166	/* No point updating the players look faces if he is the object
		1167	* being removed.
1018	}	1168	*/
1019		1169
1020	/* See if object moving off should effect something */	1170	/* See if object moving off should effect something */
1021	if (check_walk_off
1022	&& ((move_type & tmp->move_off)	1171	if ((move_type & tmp->move_off)
1023	&& (move_type & ~tmp->move_off & ~tmp->move_block) == 0))	1172	&& (move_type & ~tmp->move_off & ~tmp->move_block) == 0)
1024	{
1025	move_apply (tmp, this, 0);	1173	move_apply (tmp, this, 0);
1026
1027	if (destroyed ())
1028	LOG (llevError, "BUG: remove_ob(): name %s, destroyed leaving object\n", tmp->debug_desc ());
1029	}	1174	}
1030		1175
1031	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */	1176	if (affects_los ())
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;
1037	}
1038
1039	/* last == NULL if there are no objects on this space */
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;
		1216	}
		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	}
1086	}	1239	}
1087		1240
1088	/*	1241	/*
1089	* same as insert_ob_in_map except it handles separate coordinates and does 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;
1128
1129	if (QUERY_FLAG (op, FLAG_FREED))
1130	{
1131	LOG (llevError, "Trying to insert freed object!\n");
1132	return NULL;
1133	}
1134
1135	if (!QUERY_FLAG (op, FLAG_REMOVED))
1136	LOG (llevError, "Trying to insert already inserted object %s\n", op->debug_desc ());
1137
1138	op->remove ();	1282	op->remove ();
1139		1283
1140	if (!m)	1284	if (m == &freed_map)//D TODO: remove soon
1141	{	1285	{//D
1142	char *dump = dump_object (op);	1286	LOG (llevError | logBacktrace, "tries to insret object on freed objects map: %s", op->debug_desc ());//D
1143	LOG (llevError, "Trying to insert in null-map!\n%s\n", dump);
1144	free (dump);
1145	return op;
1146	}	1287	}//D
1147
1148	if (out_of_map (m, op->x, op->y))
1149	{
1150	char *dump = dump_object (op);
1151	LOG (llevError, "Trying to insert object outside the map.\n%s\n", dump);
1152	#ifdef MANY_CORES
1153	/* Better to catch this here, as otherwise the next use of this object
1154	* is likely to cause a crash. Better to find out where it is getting
1155	* improperly inserted.
1156	*/
1157	abort ();
1158	#endif
1159	free (dump);
1160	return op;
1161	}
1162
1163	if (object *more = op->more)
1164	{
1165	if (!insert_ob_in_map (more, m, originator, flag))
1166	{
1167	if (!op->head)
1168	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");
1169
1170	return 0;
1171	}
1172	}
1173
1174	CLEAR_FLAG (op, FLAG_REMOVED);
1175		1288
1176	/* Ideally, the caller figures this out. However, it complicates a lot	1289	/* Ideally, the caller figures this out. However, it complicates a lot
1177	* 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
1178	* need extra work	1291	* need extra work
1179	*/	1292	*/
		1293	maptile *newmap = m;
1180	if (!xy_normalise (m, op->x, op->y))	1294	if (!xy_normalise (newmap, op->x, op->y))
		1295	{
		1296	op->head_ ()->destroy ();// remove head_ once all tail object destroyers found
1181	return 0;	1297	return 0;
		1298	}
1182		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;
1183	op->map = m;	1306	op->map = newmap;
		1307
1184	mapspace &ms = op->ms ();	1308	mapspace &ms = op->ms ();
1185		1309
1186	/* this has to be done after we translate the coordinates.	1310	/* this has to be done after we translate the coordinates.
1187	*/	1311	*/
1188	if (op->nrof && !(flag & INS_NO_MERGE))	1312	if (op->nrof && !(flag & INS_NO_MERGE))
1189	for (tmp = ms.bot; tmp; tmp = tmp->above)	1313	for (object *tmp = ms.bot; tmp; tmp = tmp->above)
1190	if (object::can_merge (op, tmp))	1314	if (object::can_merge (op, tmp))
1191	{	1315	{
		1316	// TODO: we actually want to update tmp, not op,
		1317	// but some caller surely breaks when we return tmp
		1318	// from here :/
1192	op->nrof += tmp->nrof;	1319	op->nrof += tmp->nrof;
1193	tmp->destroy ();	1320	tmp->destroy ();
1194	}	1321	}
1195		1322
1196	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 */
…		…
1205	{	1332	{
1206	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");
1207	abort ();	1334	abort ();
1208	}	1335	}
1209		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
1210	op->above = originator;	1344	op->above = originator;
1211	op->below = originator->below;	1345	op->below = originator->below;
1212
1213	if (op->below)
1214	op->below->above = op;
1215	else
1216	ms.bot = op;
1217
1218	/* since *below* originator, no need to update top */
1219	originator->below = op;	1346	originator->below = op;
		1347
		1348	*(op->below ? &op->below->above : &ms.bot) = op;
1220	}	1349	}
1221	else	1350	else
1222	{	1351	{
1223	top = ms.bot;	1352	object *floor = 0;
		1353	object *top = ms.top;
1224		1354
1225	/* If there are other objects, then */	1355	/* If there are other objects, then */
1226	if ((!(flag & INS_MAP_LOAD)) && top)	1356	if (top)
1227	{	1357	{
1228	object *last = 0;
1229
1230	/*	1358	/*
1231	* 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.
1232	* We've already dealt with merging if appropriate.	1360	* We've already dealt with merging if appropriate.
1233	* 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
1234	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last	1362	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last
…		…
1237	* 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
1238	* 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
1239	* 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
1240	* that flying non pickable objects are spell objects.	1368	* that flying non pickable objects are spell objects.
1241	*/	1369	*/
1242	for (top = ms.bot; top; top = top->above)	1370	for (object *tmp = ms.bot; tmp; tmp = tmp->above)
1243	{	1371	{
1244	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))
1245	floor = top;	1373	floor = tmp;
1246		1374
1247	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))
1248	{	1376	{
1249	/* We insert above top, so we want this object below this */	1377	/* We insert above top, so we want this object below this */
1250	top = top->below;	1378	top = tmp->below;
1251	break;	1379	break;
1252	}	1380	}
1253		1381
1254	last = top;	1382	top = tmp;
1255	}	1383	}
1256
1257	/* Don't want top to be NULL, so set it to the last valid object */
1258	top = last;
1259		1384
1260	/* We let update_position deal with figuring out what the space	1385	/* We let update_position deal with figuring out what the space
1261	* looks like instead of lots of conditions here.	1386	* looks like instead of lots of conditions here.
1262	* makes things faster, and effectively the same result.	1387	* makes things faster, and effectively the same result.
1263	*/	1388	*/
1264		1389
1265	/* Have object 'fall below' other objects that block view.	1390	/* Have object 'fall below' other objects that block view.
1266	* Unless those objects are exits, type 66	1391	* Unless those objects are exits.
1267	* If INS_ON_TOP is used, don't do this processing	1392	* If INS_ON_TOP is used, don't do this processing
1268	* Need to find the object that in fact blocks view, otherwise	1393	* Need to find the object that in fact blocks view, otherwise
1269	* stacking is a bit odd.	1394	* stacking is a bit odd.
1270	*/	1395	*/
1271	if (!(flag & INS_ON_TOP)	1396	if (!(flag & INS_ON_TOP)
1272	&& ms.flags () & P_BLOCKSVIEW	1397	&& ms.flags () & P_BLOCKSVIEW
1273	&& (op->face && !op->face->visibility))	1398	&& (op->face && !faces [op->face].visibility))
1274	{	1399	{
		1400	object *last;
		1401
1275	for (last = top; last != floor; last = last->below)	1402	for (last = top; last != floor; last = last->below)
1276	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))	1403	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))
1277	break;	1404	break;
1278		1405
1279	/* Check to see if we found the object that blocks view,	1406	/* Check to see if we found the object that blocks view,
…		…
1284	if (last && last->below && last != floor)	1411	if (last && last->below && last != floor)
1285	top = last->below;	1412	top = last->below;
1286	}	1413	}
1287	} /* If objects on this space */	1414	} /* If objects on this space */
1288		1415
1289	if (flag & INS_MAP_LOAD)
1290	top = ms.top;
1291
1292	if (flag & INS_ABOVE_FLOOR_ONLY)	1416	if (flag & INS_ABOVE_FLOOR_ONLY)
1293	top = floor;	1417	top = floor;
1294		1418
1295	/* 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
1296	*/
1297
1298	/* First object on this space */
1299	if (!top)	1420	if (!top)
1300	{	1421	{
		1422	op->below = 0;
1301	op->above = ms.bot;	1423	op->above = ms.bot;
1302
1303	if (op->above)
1304	op->above->below = op;
1305
1306	op->below = 0;
1307	ms.bot = op;	1424	ms.bot = op;
		1425
		1426	*(op->above ? &op->above->below : &ms.top) = op;
1308	}	1427	}
1309	else	1428	else
1310	{ /* get inserted into the stack above top */	1429	{
1311	op->above = top->above;	1430	op->above = top->above;
1312
1313	if (op->above)
1314	op->above->below = op;	1431	top->above = op;
1315		1432
1316	op->below = top;	1433	op->below = top;
1317	top->above = op;	1434	*(op->above ? &op->above->below : &ms.top) = op;
1318	}	1435	}
		1436	}
1319		1437
1320	if (!op->above)	1438	if (op->is_player ())
1321	ms.top = op;
1322	} /* else not INS_BELOW_ORIGINATOR */
1323
1324	if (op->type == PLAYER)
1325	{	1439	{
1326	op->contr->do_los = 1;	1440	op->contr->do_los = 1;
1327	++op->map->players;	1441	++op->map->players;
1328	op->map->touch ();	1442	op->map->touch ();
1329	}	1443	}
1330		1444
1331	op->map->dirty = true;	1445	op->map->dirty = true;
1332		1446
1333	/* If we have a floor, we know the player, if any, will be above
1334	* it, so save a few ticks and start from there.
1335	*/
1336	if (!(flag & INS_MAP_LOAD))
1337	if (object *pl = 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
1338	if (pl->contr->ns)	1451	if (pl->contr->ns)
1339	pl->contr->ns->floorbox_update ();	1452	pl->contr->ns->floorbox_update ();
1340		1453
1341	/* If this object glows, it may affect lighting conditions that are	1454	/* If this object glows, it may affect lighting conditions that are
1342	* 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
1343	* 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
1344	* on the map will get recalculated. The players could very well	1457	* on the map will get recalculated. The players could very well
1345	* 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 -
1346	* this should get redone to only look for players within range,	1459	* this should get redone to only look for players within range,
1347	* or just updating the P_UPTODATE for spaces within this area	1460	* or just updating the P_UPTODATE for spaces within this area
1348	* of effect may be sufficient.	1461	* of effect may be sufficient.
1349	*/	1462	*/
1350	if (op->map->darkness && (op->glow_radius != 0))	1463	if (op->affects_los ())
		1464	{
		1465	op->ms ().invalidate ();
1351	update_all_los (op->map, op->x, op->y);	1466	update_all_los (op->map, op->x, op->y);
		1467	}
1352		1468
1353	/* updates flags (blocked, alive, no magic, etc) for this map space */	1469	/* updates flags (blocked, alive, no magic, etc) for this map space */
1354	update_object (op, UP_OBJ_INSERT);	1470	update_object (op, UP_OBJ_INSERT);
1355		1471
1356	INVOKE_OBJECT (INSERT, op);	1472	INVOKE_OBJECT (INSERT, op);
…		…
1363	* blocked() and wall() work properly), and these flags are updated by	1479	* blocked() and wall() work properly), and these flags are updated by
1364	* update_object().	1480	* update_object().
1365	*/	1481	*/
1366		1482
1367	/* 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 */
1368	if (!(flag & INS_NO_WALK_ON) && !op->head)	1484	if (!(flag & INS_NO_WALK_ON) && op->is_head ())
1369	{	1485	{
1370	if (check_move_on (op, originator))	1486	if (check_move_on (op, originator))
1371	return 0;	1487	return 0;
1372		1488
1373	/* 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
1374	* walk on's.	1490	* walk on's.
1375	*/	1491	*/
1376	for (tmp = op->more; tmp != NULL; tmp = tmp->more)	1492	for (object *tmp = op->more; tmp; tmp = tmp->more)
1377	if (check_move_on (tmp, originator))	1493	if (check_move_on (tmp, originator))
1378	return 0;	1494	return 0;
1379	}	1495	}
1380		1496
1381	return op;	1497	return op;
…		…
1384	/* this function inserts an object in the map, but if it	1500	/* this function inserts an object in the map, but if it
1385	* 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.
1386	* 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.
1387	*/	1503	*/
1388	void	1504	void
1389	replace_insert_ob_in_map (const char *arch_string, object *op)	1505	replace_insert_ob_in_map (shstr_tmp archname, object *op)
1390	{	1506	{
1391	object *tmp, *tmp1;
1392
1393	/* first search for itself and remove any old instances */	1507	/* first search for itself and remove any old instances */
1394		1508
1395	for (tmp = op->ms ().bot; tmp; tmp = tmp->above)	1509	for (object *tmp = op->ms ().bot; tmp; tmp = tmp->above)
1396	if (!strcmp (tmp->arch->name, arch_string)) /* same archetype */	1510	if (tmp->arch->archname == archname) /* same archetype */
1397	tmp->destroy ();	1511	tmp->destroy ();
1398		1512
1399	tmp1 = arch_to_object (archetype::find (arch_string));	1513	object *tmp = arch_to_object (archetype::find (archname));
1400		1514
1401	tmp1->x = op->x;	1515	tmp->x = op->x;
1402	tmp1->y = op->y;	1516	tmp->y = op->y;
		1517
1403	insert_ob_in_map (tmp1, op->map, op, 0);	1518	insert_ob_in_map (tmp, op->map, op, 0);
1404	}	1519	}
1405		1520
1406	object *	1521	object *
1407	object::insert_at (object *where, object *originator, int flags)	1522	object::insert_at (object *where, object *originator, int flags)
1408	{	1523	{
		1524	if (where->env)
		1525	return where->env->insert (this);
		1526	else
1409	where->map->insert (this, where->x, where->y, originator, flags);	1527	return where->map->insert (this, where->x, where->y, originator, flags);
1410	}	1528	}
1411		1529
1412	/*	1530	/*
1413	* get_split_ob(ob,nr) splits up ob into two parts. The part which
1414	* is returned contains nr objects, and the remaining parts contains
1415	* the rest (or is removed and freed if that number is 0).
1416	* On failure, NULL is returned, and the reason put into the
1417	* global static errmsg array.
1418	*/
1419	object *
1420	get_split_ob (object *orig_ob, uint32 nr)
1421	{
1422	object *newob;
1423	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);
1424
1425	if (orig_ob->nrof < nr)
1426	{
1427	sprintf (errmsg, "There are only %d %ss.", orig_ob->nrof ? orig_ob->nrof : 1, &orig_ob->name);
1428	return NULL;
1429	}
1430
1431	newob = object_create_clone (orig_ob);
1432
1433	if ((orig_ob->nrof -= nr) < 1)
1434	orig_ob->destroy (1);
1435	else if (!is_removed)
1436	{
1437	if (orig_ob->env != NULL)
1438	sub_weight (orig_ob->env, orig_ob->weight * nr);
1439	if (orig_ob->env == NULL && orig_ob->map->in_memory != MAP_IN_MEMORY)
1440	{
1441	strcpy (errmsg, "Tried to split object whose map is not in memory.");
1442	LOG (llevDebug, "Error, Tried to split object whose map is not in memory.\n");
1443	return NULL;
1444	}
1445	}
1446
1447	newob->nrof = nr;
1448
1449	return newob;
1450	}
1451
1452	/*
1453	* decrease_ob_nr(object, number) decreases a specified number from	1531	* decrease(object, number) decreases a specified number from
1454	* 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
1455	* is subsequently removed and freed.	1533	* is subsequently removed and freed.
1456	*	1534	*
1457	* 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
1458	*/	1536	*/
		1537	bool
		1538	object::decrease (sint32 nr)
		1539	{
		1540	if (!nr)
		1541	return true;
1459		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	*/
1460	object *	1568	object *
1461	decrease_ob_nr (object *op, uint32 i)	1569	object::split (sint32 nr)
1462	{	1570	{
1463	object *tmp;	1571	int have = number_of ();
1464		1572
1465	if (i == 0) /* objects with op->nrof require this check */	1573	if (have < nr)
1466	return op;	1574	return 0;
1467		1575	else if (have == nr)
1468	if (i > op->nrof)
1469	i = op->nrof;
1470
1471	if (QUERY_FLAG (op, FLAG_REMOVED))
1472	op->nrof -= i;
1473	else if (op->env)
1474	{	1576	{
1475	/* is this object in the players inventory, or sub container
1476	* therein?
1477	*/
1478	tmp = op->in_player ();
1479	/* nope. Is this a container the player has opened?
1480	* If so, set tmp to that player.
1481	* IMO, searching through all the players will mostly
1482	* likely be quicker than following op->env to the map,
1483	* and then searching the map for a player.
1484	*/
1485	if (!tmp)
1486	for_all_players (pl)
1487	if (pl->ob->container == op->env)
1488	{
1489	tmp = pl->ob;
1490	break;
1491	}
1492
1493	if (i < op->nrof)
1494	{
1495	sub_weight (op->env, op->weight * i);
1496	op->nrof -= i;
1497	if (tmp)
1498	esrv_send_item (tmp, op);
1499	}
1500	else
1501	{
1502	op->remove ();	1577	remove ();
1503	op->nrof = 0;	1578	return this;
1504	if (tmp)
1505	esrv_del_item (tmp->contr, op->count);
1506	}
1507	}	1579	}
1508	else	1580	else
1509	{	1581	{
1510	object *above = op->above;	1582	decrease (nr);
1511		1583
1512	if (i < op->nrof)	1584	object *op = deep_clone ();
1513	op->nrof -= i;	1585	op->nrof = nr;
1514	else
1515	{
1516	op->remove ();
1517	op->nrof = 0;
1518	}
1519
1520	/* Since we just removed op, op->above is null */
1521	for (tmp = above; tmp; tmp = tmp->above)
1522	if (tmp->type == PLAYER)
1523	{
1524	if (op->nrof)
1525	esrv_send_item (tmp, op);
1526	else
1527	esrv_del_item (tmp->contr, op->count);
1528	}
1529	}
1530
1531	if (op->nrof)
1532	return op;	1586	return op;
1533	else
1534	{
1535	op->destroy ();
1536	return 0;
1537	}
1538	}
1539
1540	/*
1541	* add_weight(object, weight) adds the specified weight to an object,
1542	* and also updates how much the environment(s) is/are carrying.
1543	*/
1544
1545	void
1546	add_weight (object *op, signed long weight)
1547	{
1548	while (op != NULL)
1549	{
1550	if (op->type == CONTAINER)
1551	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1552
1553	op->carrying += weight;
1554	op = op->env;
1555	}	1587	}
1556	}	1588	}
1557		1589
1558	object *	1590	object *
1559	insert_ob_in_ob (object *op, object *where)	1591	insert_ob_in_ob (object *op, object *where)
…		…
1564	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);
1565	free (dump);	1597	free (dump);
1566	return op;	1598	return op;
1567	}	1599	}
1568		1600
1569	if (where->head)	1601	if (where->head_ () != where)
1570	{	1602	{
1571	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");
1572	where = where->head;	1604	where = where->head;
1573	}	1605	}
1574		1606
1575	return where->insert (op);	1607	return where->insert (op);
1576	}	1608	}
…		…
1581	* inside the object environment.	1613	* inside the object environment.
1582	*	1614	*
1583	* 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
1584	* be != op, if items are merged. -Tero	1616	* be != op, if items are merged. -Tero
1585	*/	1617	*/
1586
1587	object *	1618	object *
1588	object::insert (object *op)	1619	object::insert (object *op)
1589	{	1620	{
1590	object *tmp, *otmp;
1591
1592	if (!QUERY_FLAG (op, FLAG_REMOVED))
1593	op->remove ();
1594
1595	if (op->more)	1621	if (op->more)
1596	{	1622	{
1597	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);
1598	return op;	1624	return op;
1599	}	1625	}
1600		1626
1601	CLEAR_FLAG (op, FLAG_OBJ_ORIGINAL);	1627	op->remove ();
1602	CLEAR_FLAG (op, FLAG_REMOVED);	1628
		1629	op->flag [FLAG_OBJ_ORIGINAL] = 0;
		1630
1603	if (op->nrof)	1631	if (op->nrof)
1604	{
1605	for (tmp = inv; tmp != NULL; tmp = tmp->below)	1632	for (object *tmp = inv; tmp; tmp = tmp->below)
1606	if (object::can_merge (tmp, op))	1633	if (object::can_merge (tmp, op))
1607	{	1634	{
1608	/* return the original object and remove inserted object	1635	/* return the original object and remove inserted object
1609	(client needs the original object) */	1636	(client needs the original object) */
1610	tmp->nrof += op->nrof;	1637	tmp->nrof += op->nrof;
1611	/* Weight handling gets pretty funky. Since we are adding to	1638
1612	* tmp->nrof, we need to increase the weight.	1639	if (object *pl = tmp->visible_to ())
1613	*/	1640	esrv_update_item (UPD_NROF, pl, tmp);
		1641
1614	add_weight (this, op->weight * op->nrof);	1642	adjust_weight (this, op->total_weight ());
1615	SET_FLAG (op, FLAG_REMOVED);	1643
1616	op->destroy (); /* free the inserted object */	1644	op->destroy ();
1617	op = tmp;	1645	op = tmp;
1618	op->remove (); /* and fix old object's links */	1646	goto inserted;
1619	CLEAR_FLAG (op, FLAG_REMOVED);
1620	break;
1621	}	1647	}
1622		1648
1623	/* I assume combined objects have no inventory	1649	op->owner = 0; // it's his/hers now. period.
1624	* We add the weight - this object could have just been removed
1625	* (if it was possible to merge). calling remove_ob will subtract
1626	* the weight, so we need to add it in again, since we actually do
1627	* the linking below
1628	*/
1629	add_weight (this, op->weight * op->nrof);
1630	}
1631	else
1632	add_weight (this, (op->weight + op->carrying));
1633
1634	otmp = this->in_player ();
1635	if (otmp && otmp->contr)
1636	if (!QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1637	otmp->update_stats ();
1638
1639	op->map = 0;	1650	op->map = 0;
1640	op->env = this;	1651	op->x = 0;
		1652	op->y = 0;
		1653
1641	op->above = 0;	1654	op->above = 0;
1642	op->below = 0;	1655	op->below = inv;
1643	op->x = 0, op->y = 0;	1656	op->env = this;
1644		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:
1645	/* 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 */
1646	if ((op->glow_radius != 0) && map)	1672	if (op->glow_radius && is_on_map ())
1647	{	1673	{
1648	#ifdef DEBUG_LIGHTS	1674	update_stats ();
1649	LOG (llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n", op->name);
1650	#endif /* DEBUG_LIGHTS */
1651	if (map->darkness)
1652	update_all_los (map, x, y);	1675	update_all_los (map, x, y);
1653	}
1654
1655	/* Client has no idea of ordering so lets not bother ordering it here.
1656	* It sure simplifies this function...
1657	*/
1658	if (!inv)
1659	inv = op;
1660	else
1661	{	1676	}
1662	op->below = inv;	1677	else if (is_player () && !flag [FLAG_NO_FIX_PLAYER])
1663	op->below->above = op;	1678	// if this is a player's inventory, update stats
1664	inv = op;	1679	update_stats ();
1665	}
1666		1680
1667	INVOKE_OBJECT (INSERT, this);	1681	INVOKE_OBJECT (INSERT, this);
1668		1682
1669	return op;	1683	return op;
1670	}	1684	}
…		…
1690	* on top.	1704	* on top.
1691	*/	1705	*/
1692	int	1706	int
1693	check_move_on (object *op, object *originator)	1707	check_move_on (object *op, object *originator)
1694	{	1708	{
		1709	if (QUERY_FLAG (op, FLAG_NO_APPLY))
		1710	return 0;
		1711
1695	object *tmp;	1712	object *tmp;
1696	maptile *m = op->map;	1713	maptile *m = op->map;
1697	int x = op->x, y = op->y;	1714	int x = op->x, y = op->y;
1698		1715
1699	MoveType move_on, move_slow, move_block;	1716	mapspace &ms = m->at (x, y);
1700		1717
1701	if (QUERY_FLAG (op, FLAG_NO_APPLY))	1718	ms.update ();
1702	return 0;
1703		1719
1704	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);	1720	MoveType move_on = ms.move_on;
1705	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);	1721	MoveType move_slow = ms.move_slow;
1706	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);	1722	MoveType move_block = ms.move_block;
1707		1723
1708	/* if nothing on this space will slow op down or be applied,	1724	/* if nothing on this space will slow op down or be applied,
1709	* no need to do checking below. have to make sure move_type	1725	* no need to do checking below. have to make sure move_type
1710	* is set, as lots of objects don't have it set - we treat that	1726	* is set, as lots of objects don't have it set - we treat that
1711	* as walking.	1727	* as walking.
…		…
1722	return 0;	1738	return 0;
1723		1739
1724	/* The objects have to be checked from top to bottom.	1740	/* The objects have to be checked from top to bottom.
1725	* Hence, we first go to the top:	1741	* Hence, we first go to the top:
1726	*/	1742	*/
1727		1743	for (object *next, *tmp = ms.top; tmp; tmp = next)
1728	for (tmp = op->ms ().bot; tmp && tmp->above; tmp = tmp->above)
1729	{
1730	/* Trim the search when we find the first other spell effect
1731	* this helps performance so that if a space has 50 spell objects,
1732	* we don't need to check all of them.
1733	*/
1734	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG (tmp, FLAG_NO_PICK))
1735	break;
1736	}	1744	{
		1745	next = tmp->below;
1737		1746
1738	for (; tmp; tmp = tmp->below)
1739	{
1740	if (tmp == op)	1747	if (tmp == op)
1741	continue; /* Can't apply yourself */	1748	continue; /* Can't apply yourself */
1742		1749
1743	/* Check to see if one of the movement types should be slowed down.	1750	/* Check to see if one of the movement types should be slowed down.
1744	* Second check makes sure that the movement types not being slowed	1751	* Second check makes sure that the movement types not being slowed
…		…
1749	if (!QUERY_FLAG (op, FLAG_WIZPASS))	1756	if (!QUERY_FLAG (op, FLAG_WIZPASS))
1750	{	1757	{
1751	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||	1758	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||
1752	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))	1759	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))
1753	{	1760	{
1754
1755	float
1756	diff = tmp->move_slow_penalty * fabs (op->speed);	1761	float diff = tmp->move_slow_penalty * fabs (op->speed);
1757		1762
1758	if (op->type == PLAYER)	1763	if (op->is_player ())
1759	if ((QUERY_FLAG (tmp, FLAG_IS_HILLY) && find_skill_by_number (op, SK_CLIMBING)) ||	1764	if ((tmp->flag [FLAG_IS_HILLY ] && find_skill_by_number (op, SK_CLIMBING)) ||
1760	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))	1765	(tmp->flag [FLAG_IS_WOODED] && find_skill_by_number (op, SK_WOODSMAN)))
1761	diff /= 4.0;	1766	diff /= 4.0;
1762		1767
1763	op->speed_left -= diff;	1768	op->speed_left -= diff;
1764	}	1769	}
1765	}	1770	}
…		…
1798	LOG (llevError, "Present_arch called outside map.\n");	1803	LOG (llevError, "Present_arch called outside map.\n");
1799	return NULL;	1804	return NULL;
1800	}	1805	}
1801		1806
1802	for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)	1807	for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)
1803	if (tmp->arch == at)	1808	if (tmp->arch->archname == at->archname)
1804	return tmp;	1809	return tmp;
1805		1810
1806	return NULL;	1811	return NULL;
1807	}	1812	}
1808		1813
…		…
1872	* The first matching object is returned, or NULL if none.	1877	* The first matching object is returned, or NULL if none.
1873	*/	1878	*/
1874	object *	1879	object *
1875	present_arch_in_ob (const archetype *at, const object *op)	1880	present_arch_in_ob (const archetype *at, const object *op)
1876	{	1881	{
1877	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)	1882	for (object *tmp = op->inv; tmp; tmp = tmp->below)
1878	if (tmp->arch == at)	1883	if (tmp->arch->archname == at->archname)
1879	return tmp;	1884	return tmp;
1880		1885
1881	return NULL;	1886	return NULL;
1882	}	1887	}
1883		1888
…		…
1885	* activate recursively a flag on an object inventory	1890	* activate recursively a flag on an object inventory
1886	*/	1891	*/
1887	void	1892	void
1888	flag_inv (object *op, int flag)	1893	flag_inv (object *op, int flag)
1889	{	1894	{
1890	if (op->inv)
1891	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)	1895	for (object *tmp = op->inv; tmp; tmp = tmp->below)
1892	{	1896	{
1893	SET_FLAG (tmp, flag);	1897	SET_FLAG (tmp, flag);
1894	flag_inv (tmp, flag);	1898	flag_inv (tmp, flag);
1895	}	1899	}
1896	}	1900	}
1897		1901
1898	/*	1902	/*
1899	* deactivate recursively a flag on an object inventory	1903	* deactivate recursively a flag on an object inventory
1900	*/	1904	*/
1901	void	1905	void
1902	unflag_inv (object *op, int flag)	1906	unflag_inv (object *op, int flag)
1903	{	1907	{
1904	if (op->inv)
1905	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)	1908	for (object *tmp = op->inv; tmp; tmp = tmp->below)
1906	{	1909	{
1907	CLEAR_FLAG (tmp, flag);	1910	CLEAR_FLAG (tmp, flag);
1908	unflag_inv (tmp, flag);	1911	unflag_inv (tmp, flag);
1909	}	1912	}
1910	}
1911
1912	/*
1913	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in
1914	* all it's inventory (recursively).
1915	* If checksums are used, a player will get set_cheat called for
1916	* him/her-self and all object carried by a call to this function.
1917	*/
1918	void
1919	set_cheat (object *op)
1920	{
1921	SET_FLAG (op, FLAG_WAS_WIZ);
1922	flag_inv (op, FLAG_WAS_WIZ);
1923	}	1913	}
1924		1914
1925	/*	1915	/*
1926	* find_free_spot(object, map, x, y, start, stop) will search for	1916	* find_free_spot(object, map, x, y, start, stop) will search for
1927	* a spot at the given map and coordinates which will be able to contain	1917	* a spot at the given map and coordinates which will be able to contain
…		…
1929	* to search (see the freearr_x/y[] definition).	1919	* to search (see the freearr_x/y[] definition).
1930	* It returns a random choice among the alternatives found.	1920	* It returns a random choice among the alternatives found.
1931	* start and stop are where to start relative to the free_arr array (1,9	1921	* start and stop are where to start relative to the free_arr array (1,9
1932	* does all 4 immediate directions). This returns the index into the	1922	* does all 4 immediate directions). This returns the index into the
1933	* array of the free spot, -1 if no spot available (dir 0 = x,y)	1923	* array of the free spot, -1 if no spot available (dir 0 = x,y)
1934	* Note - this only checks to see if there is space for the head of the
1935	* object - if it is a multispace object, this should be called for all
1936	* pieces.
1937	* Note2: This function does correctly handle tiled maps, but does not	1924	* Note: This function does correctly handle tiled maps, but does not
1938	* inform the caller. However, insert_ob_in_map will update as	1925	* inform the caller. However, insert_ob_in_map will update as
1939	* necessary, so the caller shouldn't need to do any special work.	1926	* necessary, so the caller shouldn't need to do any special work.
1940	* Note - updated to take an object instead of archetype - this is necessary	1927	* Note - updated to take an object instead of archetype - this is necessary
1941	* because arch_blocked (now ob_blocked) needs to know the movement type	1928	* because arch_blocked (now ob_blocked) needs to know the movement type
1942	* to know if the space in question will block the object. We can't use	1929	* to know if the space in question will block the object. We can't use
…		…
1944	* customized, changed states, etc.	1931	* customized, changed states, etc.
1945	*/	1932	*/
1946	int	1933	int
1947	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)	1934	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)
1948	{	1935	{
		1936	int altern[SIZEOFFREE];
1949	int index = 0, flag;	1937	int index = 0, flag;
1950	int altern[SIZEOFFREE];
1951		1938
1952	for (int i = start; i < stop; i++)	1939	for (int i = start; i < stop; i++)
1953	{	1940	{
1954	flag = ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]);	1941	mapxy pos (m, x, y); pos.move (i);
1955	if (!flag)	1942
		1943	if (!pos.normalise ())
		1944	continue;
		1945
		1946	mapspace &ms = *pos;
		1947
		1948	if (ms.flags () & P_IS_ALIVE)
		1949	continue;
		1950
		1951	/* However, often
		1952	* ob doesn't have any move type (when used to place exits)
		1953	* so the AND operation in OB_TYPE_MOVE_BLOCK doesn't work.
		1954	*/
		1955	if (ob && ob->move_type == 0 && ms.move_block != MOVE_ALL)
		1956	{
1956	altern [index++] = i;	1957	altern [index++] = i;
		1958	continue;
		1959	}
1957		1960
1958	/* Basically, if we find a wall on a space, we cut down the search size.	1961	/* Basically, if we find a wall on a space, we cut down the search size.
1959	* In this way, we won't return spaces that are on another side of a wall.	1962	* In this way, we won't return spaces that are on another side of a wall.
1960	* This mostly work, but it cuts down the search size in all directions -	1963	* This mostly work, but it cuts down the search size in all directions -
1961	* if the space being examined only has a wall to the north and empty	1964	* if the space being examined only has a wall to the north and empty
1962	* spaces in all the other directions, this will reduce the search space	1965	* spaces in all the other directions, this will reduce the search space
1963	* to only the spaces immediately surrounding the target area, and	1966	* to only the spaces immediately surrounding the target area, and
1964	* won't look 2 spaces south of the target space.	1967	* won't look 2 spaces south of the target space.
1965	*/	1968	*/
1966	else if ((flag & P_NO_PASS) && maxfree[i] < stop)	1969	if (ms.move_block == MOVE_ALL && maxfree[i] < stop)
		1970	{
1967	stop = maxfree[i];	1971	stop = maxfree[i];
		1972	continue;
		1973	}
		1974
		1975	/* Note it is intentional that we check ob - the movement type of the
		1976	* head of the object should correspond for the entire object.
		1977	*/
		1978	if (OB_TYPE_MOVE_BLOCK (ob, ms.move_block))
		1979	continue;
		1980
		1981	if (ob->blocked (pos.m, pos.x, pos.y))
		1982	continue;
		1983
		1984	altern [index++] = i;
1968	}	1985	}
1969		1986
1970	if (!index)	1987	if (!index)
1971	return -1;	1988	return -1;
1972		1989
1973	return altern[RANDOM () % index];	1990	return altern [rndm (index)];
1974	}	1991	}
1975		1992
1976	/*	1993	/*
1977	* find_first_free_spot(archetype, maptile, x, y) works like	1994	* find_first_free_spot(archetype, maptile, x, y) works like
1978	* find_free_spot(), but it will search max number of squares.	1995	* find_free_spot(), but it will search max number of squares.
…		…
1981	*/	1998	*/
1982	int	1999	int
1983	find_first_free_spot (const object *ob, maptile *m, int x, int y)	2000	find_first_free_spot (const object *ob, maptile *m, int x, int y)
1984	{	2001	{
1985	for (int i = 0; i < SIZEOFFREE; i++)	2002	for (int i = 0; i < SIZEOFFREE; i++)
1986	if (!ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]))	2003	if (!ob->blocked (m, x + freearr_x[i], y + freearr_y[i]))
1987	return i;	2004	return i;
1988		2005
1989	return -1;	2006	return -1;
1990	}	2007	}
1991		2008
…		…
1999	{	2016	{
2000	arr += begin;	2017	arr += begin;
2001	end -= begin;	2018	end -= begin;
2002		2019
2003	while (--end)	2020	while (--end)
2004	swap (arr [end], arr [RANDOM () % (end + 1)]);	2021	swap (arr [end], arr [rndm (end + 1)]);
2005	}	2022	}
2006		2023
2007	/* new function to make monster searching more efficient, and effective!	2024	/* new function to make monster searching more efficient, and effective!
2008	* This basically returns a randomized array (in the passed pointer) of	2025	* This basically returns a randomized array (in the passed pointer) of
2009	* the spaces to find monsters. In this way, it won't always look for	2026	* the spaces to find monsters. In this way, it won't always look for
…		…
2037	* there is capable of.	2054	* there is capable of.
2038	*/	2055	*/
2039	int	2056	int
2040	find_dir (maptile *m, int x, int y, object *exclude)	2057	find_dir (maptile *m, int x, int y, object *exclude)
2041	{	2058	{
2042	int i, max = SIZEOFFREE, mflags;	2059	int max = SIZEOFFREE, mflags;
2043
2044	sint16 nx, ny;
2045	object *tmp;
2046	maptile *mp;
2047
2048	MoveType blocked, move_type;	2060	MoveType move_type;
2049		2061
2050	if (exclude && exclude->head)	2062	if (exclude && exclude->head_ () != exclude)
2051	{	2063	{
2052	exclude = exclude->head;	2064	exclude = exclude->head;
2053	move_type = exclude->move_type;	2065	move_type = exclude->move_type;
2054	}	2066	}
2055	else	2067	else
2056	{	2068	{
2057	/* If we don't have anything, presume it can use all movement types. */	2069	/* If we don't have anything, presume it can use all movement types. */
2058	move_type = MOVE_ALL;	2070	move_type = MOVE_ALL;
2059	}	2071	}
2060		2072
2061	for (i = 1; i < max; i++)	2073	for (int i = 1; i < max; i++)
2062	{	2074	{
2063	mp = m;	2075	mapxy pos (m, x, y);
2064	nx = x + freearr_x[i];	2076	pos.move (i);
2065	ny = y + freearr_y[i];
2066		2077
2067	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);	2078	if (!pos.normalise ())
2068
2069	if (mflags & P_OUT_OF_MAP)
2070	max = maxfree[i];	2079	max = maxfree[i];
2071	else	2080	else
2072	{	2081	{
2073	mapspace &ms = mp->at (nx, ny);	2082	mapspace &ms = *pos;
2074		2083
2075	blocked = ms.move_block;
2076
2077	if ((move_type & blocked) == move_type)	2084	if ((move_type & ms.move_block) == move_type)
2078	max = maxfree[i];	2085	max = maxfree [i];
2079	else if (mflags & P_IS_ALIVE)	2086	else if (ms.flags () & P_IS_ALIVE)
2080	{	2087	{
2081	for (tmp = ms.bot; tmp; tmp = tmp->above)	2088	for (object *tmp = ms.bot; tmp; tmp = tmp->above)
2082	if ((tmp->flag [FLAG_MONSTER] || tmp->type == PLAYER)	2089	if ((tmp->flag [FLAG_MONSTER] || tmp->is_player ())
2083	&& (tmp != exclude || (tmp->head && tmp->head != exclude)))	2090	&& (tmp != exclude || (tmp->head_ () != tmp && tmp->head_ () != exclude)))
2084	break;
2085
2086	if (tmp)
2087	return freedir[i];	2091	return freedir [i];
2088	}	2092	}
2089	}	2093	}
2090	}	2094	}
2091		2095
2092	return 0;	2096	return 0;
…		…
2167	* This basically means that if direction is 15, then it could either go	2171	* This basically means that if direction is 15, then it could either go
2168	* direction 4, 14, or 16 to get back to where we are.	2172	* direction 4, 14, or 16 to get back to where we are.
2169	* Moved from spell_util.c to object.c with the other related direction	2173	* Moved from spell_util.c to object.c with the other related direction
2170	* functions.	2174	* functions.
2171	*/	2175	*/
2172	int reduction_dir[SIZEOFFREE][3] = {	2176	const int reduction_dir[SIZEOFFREE][3] = {
2173	{0, 0, 0}, /* 0 */	2177	{0, 0, 0}, /* 0 */
2174	{0, 0, 0}, /* 1 */	2178	{0, 0, 0}, /* 1 */
2175	{0, 0, 0}, /* 2 */	2179	{0, 0, 0}, /* 2 */
2176	{0, 0, 0}, /* 3 */	2180	{0, 0, 0}, /* 3 */
2177	{0, 0, 0}, /* 4 */	2181	{0, 0, 0}, /* 4 */
…		…
2268	* Cf 0.91.3 - don't let WIZ's pick up anything - will likely cause	2272	* Cf 0.91.3 - don't let WIZ's pick up anything - will likely cause
2269	* core dumps if they do.	2273	* core dumps if they do.
2270	*	2274	*
2271	* Add a check so we can't pick up invisible objects (0.93.8)	2275	* Add a check so we can't pick up invisible objects (0.93.8)
2272	*/	2276	*/
2273
2274	int	2277	int
2275	can_pick (const object *who, const object *item)	2278	can_pick (const object *who, const object *item)
2276	{	2279	{
2277	return /*QUERY_FLAG(who,FLAG_WIZ)|| */	2280	return /*QUERY_FLAG(who,FLAG_WIZ)|| */
2278	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&	2281	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&
2279	!QUERY_FLAG (item, FLAG_ALIVE) && !item->invisible && (who->type == PLAYER || item->weight < who->weight / 3));	2282	!QUERY_FLAG (item, FLAG_ALIVE) && !item->invisible && (who->is_player () || item->weight < who->weight / 3));
2280	}	2283	}
2281		2284
2282	/*	2285	/*
2283	* create clone from object to another	2286	* create clone from object to another
2284	*/	2287	*/
2285	object *	2288	object *
2286	object_create_clone (object *asrc)	2289	object::deep_clone ()
2287	{	2290	{
2288	object *dst = 0, *tmp, *src, *part, *prev, *item;	2291	assert (("deep_clone called on non-head object", is_head ()));
2289		2292
2290	if (!asrc)	2293	object *dst = clone ();
2291	return 0;
2292		2294
2293	src = asrc;	2295	object *prev = dst;
2294	if (src->head)
2295	src = src->head;
2296
2297	prev = 0;
2298	for (part = src; part; part = part->more)	2296	for (object *part = this->more; part; part = part->more)
2299	{	2297	{
2300	tmp = part->clone ();	2298	object *tmp = part->clone ();
2301	tmp->x -= src->x;
2302	tmp->y -= src->y;
2303
2304	if (!part->head)
2305	{
2306	dst = tmp;
2307	tmp->head = 0;
2308	}
2309	else
2310	tmp->head = dst;	2299	tmp->head = dst;
2311
2312	tmp->more = 0;
2313
2314	if (prev)
2315	prev->more = tmp;	2300	prev->more = tmp;
2316
2317	prev = tmp;	2301	prev = tmp;
2318	}	2302	}
2319		2303
2320	for (item = src->inv; item; item = item->below)	2304	for (object *item = inv; item; item = item->below)
2321	insert_ob_in_ob (object_create_clone (item), dst);	2305	insert_ob_in_ob (item->deep_clone (), dst);
2322		2306
2323	return dst;	2307	return dst;
2324	}
2325
2326	/* GROS - Creates an object using a string representing its content. */
2327	/* Basically, we save the content of the string to a temp file, then call */
2328	/* load_object on it. I admit it is a highly inefficient way to make things, */
2329	/* but it was simple to make and allows reusing the load_object function. */
2330	/* Remember not to use load_object_str in a time-critical situation. */
2331	/* Also remember that multiparts objects are not supported for now. */
2332	object *
2333	load_object_str (const char *obstr)
2334	{
2335	object *op;
2336	char filename[MAX_BUF];
2337
2338	sprintf (filename, "%s/cfloadobstr2044", settings.tmpdir);
2339
2340	FILE *tempfile = fopen (filename, "w");
2341
2342	if (tempfile == NULL)
2343	{
2344	LOG (llevError, "Error - Unable to access load object temp file\n");
2345	return NULL;
2346	}
2347
2348	fprintf (tempfile, obstr);
2349	fclose (tempfile);
2350
2351	op = object::create ();
2352
2353	object_thawer thawer (filename);
2354
2355	if (thawer)
2356	load_object (thawer, op, 0);
2357
2358	LOG (llevDebug, " load str completed, object=%s\n", &op->name);
2359	CLEAR_FLAG (op, FLAG_REMOVED);
2360
2361	return op;
2362	}	2308	}
2363		2309
2364	/* This returns the first object in who's inventory that	2310	/* This returns the first object in who's inventory that
2365	* has the same type and subtype match.	2311	* has the same type and subtype match.
2366	* returns NULL if no match.	2312	* returns NULL if no match.
…		…
2373	return tmp;	2319	return tmp;
2374		2320
2375	return 0;	2321	return 0;
2376	}	2322	}
2377		2323
2378	/* If ob has a field named key, return the link from the list,	2324	shstr_tmp
2379	* otherwise return NULL.	2325	object::kv_get (shstr_tmp key) const
2380	*
2381	* key must be a passed in shared string - otherwise, this won't
2382	* do the desired thing.
2383	*/
2384	key_value *
2385	get_ob_key_link (const object *ob, const char *key)
2386	{	2326	{
2387	for (key_value *link = ob->key_values; link; link = link->next)	2327	for (key_value *kv = key_values; kv; kv = kv->next)
2388	if (link->key == key)	2328	if (kv->key == key)
2389	return link;
2390
2391	return 0;
2392	}
2393
2394	/*
2395	* Returns the value of op has an extra_field for key, or NULL.
2396	*
2397	* The argument doesn't need to be a shared string.
2398	*
2399	* The returned string is shared.
2400	*/
2401	const char *
2402	get_ob_key_value (const object *op, const char *const key)
2403	{
2404	key_value *link;
2405	shstr_cmp canonical_key (key);
2406
2407	if (!canonical_key)
2408	{
2409	/* 1. There being a field named key on any object
2410	* implies there'd be a shared string to find.
2411	* 2. Since there isn't, no object has this field.
2412	* 3. Therefore, *this* object doesn't have this field.
2413	*/
2414	return 0;
2415	}
2416
2417	/* This is copied from get_ob_key_link() above -
2418	* only 4 lines, and saves the function call overhead.
2419	*/
2420	for (link = op->key_values; link; link = link->next)
2421	if (link->key == canonical_key)
2422	return link->value;	2329	return kv->value;
2423		2330
2424	return 0;	2331	return shstr ();
2425	}	2332	}
2426		2333
2427		2334	void
2428	/*	2335	object::kv_set (shstr_tmp key, shstr_tmp value)
2429	* Updates the canonical_key in op to value.
2430	*
2431	* canonical_key is a shared string (value doesn't have to be).
2432	*
2433	* Unless add_key is TRUE, it won't add fields, only change the value of existing
2434	* keys.
2435	*
2436	* Returns TRUE on success.
2437	*/
2438	int
2439	set_ob_key_value_s (object *op, const shstr & canonical_key, const char *value, int add_key)
2440	{	2336	{
2441	key_value *field = NULL, *last = NULL;	2337	for (key_value *kv = key_values; kv; kv = kv->next)
2442		2338	if (kv->key == key)
2443	for (field = op->key_values; field != NULL; field = field->next)
2444	{
2445	if (field->key != canonical_key)
2446	{	2339	{
2447	last = field;	2340	kv->value = value;
2448	continue;	2341	return;
2449	}	2342	}
2450		2343
2451	if (value)	2344	key_value *kv = new key_value;
2452	field->value = value;	2345
2453	else	2346	kv->next = key_values;
		2347	kv->key = key;
		2348	kv->value = value;
		2349
		2350	key_values = kv;
		2351	}
		2352
		2353	void
		2354	object::kv_del (shstr_tmp key)
		2355	{
		2356	for (key_value **kvp = &key_values; *kvp; kvp = &(*kvp)->next)
		2357	if ((*kvp)->key == key)
2454	{	2358	{
2455	/* Basically, if the archetype has this key set,	2359	key_value *kv = *kvp;
2456	* we need to store the null value so when we save	2360	*kvp = (*kvp)->next;
2457	* it, we save the empty value so that when we load,	2361	delete kv;
2458	* we get this value back again.	2362	return;
2459	*/
2460	if (get_ob_key_link (&op->arch->clone, canonical_key))
2461	field->value = 0;
2462	else
2463	{
2464	if (last)
2465	last->next = field->next;
2466	else
2467	op->key_values = field->next;
2468
2469	delete field;
2470	}
2471	}	2363	}
2472	return TRUE;
2473	}
2474	/* IF we get here, key doesn't exist */
2475
2476	/* No field, we'll have to add it. */
2477
2478	if (!add_key)
2479	return FALSE;
2480
2481	/* There isn't any good reason to store a null
2482	* value in the key/value list. If the archetype has
2483	* this key, then we should also have it, so shouldn't
2484	* be here. If user wants to store empty strings,
2485	* should pass in ""
2486	*/
2487	if (value == NULL)
2488	return TRUE;
2489
2490	field = new key_value;
2491
2492	field->key = canonical_key;
2493	field->value = value;
2494	/* Usual prepend-addition. */
2495	field->next = op->key_values;
2496	op->key_values = field;
2497
2498	return TRUE;
2499	}
2500
2501	/*
2502	* Updates the key in op to value.
2503	*
2504	* If add_key is FALSE, this will only update existing keys,
2505	* and not add new ones.
2506	* In general, should be little reason FALSE is ever passed in for add_key
2507	*
2508	* Returns TRUE on success.
2509	*/
2510	int
2511	set_ob_key_value (object *op, const char *key, const char *value, int add_key)
2512	{
2513	shstr key_ (key);
2514
2515	return set_ob_key_value_s (op, key_, value, add_key);
2516	}	2364	}
2517		2365
2518	object::depth_iterator::depth_iterator (object *container)	2366	object::depth_iterator::depth_iterator (object *container)
2519	: iterator_base (container)	2367	: iterator_base (container)
2520	{	2368	{
…		…
2533	item = item->inv;	2381	item = item->inv;
2534	}	2382	}
2535	else	2383	else
2536	item = item->env;	2384	item = item->env;
2537	}	2385	}
2538
2539		2386
2540	const char *	2387	const char *
2541	object::flag_desc (char *desc, int len) const	2388	object::flag_desc (char *desc, int len) const
2542	{	2389	{
2543	char *p = desc;	2390	char *p = desc;
…		…
2571	{	2418	{
2572	char flagdesc[512];	2419	char flagdesc[512];
2573	char info2[256 * 4];	2420	char info2[256 * 4];
2574	char *p = info;	2421	char *p = info;
2575		2422
2576	p += snprintf (p, 512, "{cnt:%d,uuid:<1,%" PRIx64 ">,name:\"%s\"%s%s,flags:[%s],type:%d}",	2423	p += snprintf (p, 512, "{cnt:%d,uuid:%s,name:\"%s\"%s%s%s,flags:[%s],type:%d}",
2577	count, uuid.seq,	2424	count,
		2425	uuid.c_str (),
2578	&name,	2426	&name,
2579	title ? "\",title:\"" : "",	2427	title ? ",title:\"" : "",
2580	title ? (const char *)title : "",	2428	title ? (const char *)title : "",
		2429	title ? "\"" : "",
2581	flag_desc (flagdesc, 512), type);	2430	flag_desc (flagdesc, 512), type);
2582		2431
2583	if (env)	2432	if (!flag[FLAG_REMOVED] && env)
2584	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));	2433	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));
2585		2434
2586	if (map)	2435	if (map)
2587	p += snprintf (p, 256, "(on %s@%d+%d)", &map->path, x, y);	2436	p += snprintf (p, 256, "(on %s@%d+%d)", &map->path, x, y);
2588		2437
…		…
2590	}	2439	}
2591		2440
2592	const char *	2441	const char *
2593	object::debug_desc () const	2442	object::debug_desc () const
2594	{	2443	{
2595	static char info[256 * 4];	2444	static char info[3][256 * 4];
		2445	static int info_idx;
		2446
2596	return debug_desc (info);	2447	return debug_desc (info [++info_idx % 3]);
2597	}	2448	}
2598		2449
2599	const char *	2450	struct region *
2600	object::debug_desc2 () const	2451	object::region () const
2601	{	2452	{
2602	static char info[256 * 4];	2453	return map ? map->region (x, y)
2603	return debug_desc (info);	2454	: region::default_region ();
2604	}	2455	}
2605		2456
		2457	const materialtype_t *
		2458	object::dominant_material () const
		2459	{
		2460	if (materialtype_t *mt = name_to_material (materialname))
		2461	return mt;
		2462
		2463	return name_to_material (shstr_unknown);
		2464	}
		2465
		2466	void
		2467	object::open_container (object *new_container)
		2468	{
		2469	if (container == new_container)
		2470	return;
		2471
		2472	object *old_container = container;
		2473
		2474	if (old_container)
		2475	{
		2476	if (INVOKE_OBJECT (CLOSE, old_container, ARG_OBJECT (this)))
		2477	return;
		2478
		2479	#if 0
		2480	// remove the "Close old_container" object.
		2481	if (object *closer = old_container->inv)
		2482	if (closer->type == CLOSE_CON)
		2483	closer->destroy ();
		2484	#endif
		2485
		2486	// make sure the container is available
		2487	esrv_send_item (this, old_container);
		2488
		2489	old_container->flag [FLAG_APPLIED] = false;
		2490	container = 0;
		2491
		2492	// client needs item update to make it work, client bug requires this to be separate
		2493	esrv_update_item (UPD_FLAGS, this, old_container);
		2494
		2495	new_draw_info_format (NDI_UNIQUE, 0, this, "You close %s.", old_container->query_name ());
		2496	play_sound (sound_find ("chest_close"));
		2497	}
		2498
		2499	if (new_container)
		2500	{
		2501	if (INVOKE_OBJECT (OPEN, new_container, ARG_OBJECT (this)))
		2502	return;
		2503
		2504	// TODO: this does not seem to serve any purpose anymore?
		2505	#if 0
		2506	// insert the "Close Container" object.
		2507	if (archetype *closer = new_container->other_arch)
		2508	{
		2509	object *closer = arch_to_object (new_container->other_arch);
		2510	closer->flag [FLAG_NO_MAP_SAVE] = 1;
		2511	new_container->insert (closer);
		2512	}
		2513	#endif
		2514
		2515	new_draw_info_format (NDI_UNIQUE, 0, this, "You open %s.", new_container->query_name ());
		2516
		2517	// make sure the container is available, client bug requires this to be separate
		2518	esrv_send_item (this, new_container);
		2519
		2520	new_container->flag [FLAG_APPLIED] = true;
		2521	container = new_container;
		2522
		2523	// client needs flag change
		2524	esrv_update_item (UPD_FLAGS, this, new_container);
		2525	esrv_send_inventory (this, new_container);
		2526	play_sound (sound_find ("chest_open"));
		2527	}
		2528	// else if (!old_container->env && contr && contr->ns)
		2529	// contr->ns->floorbox_reset ();
		2530	}
		2531
		2532	object *
		2533	object::force_find (shstr_tmp name)
		2534	{
		2535	/* cycle through his inventory to look for the MARK we want to
		2536	* place
		2537	*/
		2538	for (object *tmp = inv; tmp; tmp = tmp->below)
		2539	if (tmp->type == FORCE && tmp->slaying == name)
		2540	return splay (tmp);
		2541
		2542	return 0;
		2543	}
		2544
		2545	void
		2546	object::force_set_timer (int duration)
		2547	{
		2548	this->duration = 1;
		2549	this->speed_left = -1.f;
		2550
		2551	this->set_speed (duration ? 1.f / duration : 0.f);
		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
		2564	force->force_set_timer (duration);
		2565
		2566	force->flag [FLAG_APPLIED] = true;
		2567
		2568	return insert (force);
		2569	}
		2570
		2571	void
		2572	object::play_sound (faceidx sound) const
		2573	{
		2574	if (!sound)
		2575	return;
		2576
		2577	if (is_on_map ())
		2578	map->play_sound (sound, x, y);
		2579	else if (object *pl = in_player ())
		2580	pl->contr->play_sound (sound);
		2581	}
		2582
		2583	void
		2584	object::say_msg (const char *msg) const
		2585	{
		2586	if (is_on_map ())
		2587	map->say_msg (msg, x, y);
		2588	else if (object *pl = in_player ())
		2589	pl->contr->play_sound (sound);
		2590	}
		2591
		2592	void
		2593	object::make_noise ()
		2594	{
		2595	// we do not model noise in the map, so instead put
		2596	// a temporary light into the noise source
		2597	// could use the map instead, but that's less reliable for our
		2598	// goal, which is to make invisibility a bit harder to exploit
		2599
		2600	// currently only works sensibly for players
		2601	if (!is_player ())
		2602	return;
		2603
		2604	// find old force, or create new one
		2605	object *force = force_find (shstr_noise_force);
		2606
		2607	if (force)
		2608	force->speed_left = -1.f; // patch old speed up
		2609	else
		2610	{
		2611	force = archetype::get (shstr_noise_force);
		2612
		2613	force->slaying = shstr_noise_force;
		2614	force->stats.food = 1;
		2615	force->speed_left = -1.f;
		2616
		2617	force->set_speed (1.f / 4.f);
		2618	force->flag [FLAG_IS_USED_UP] = true;
		2619	force->flag [FLAG_APPLIED] = true;
		2620
		2621	insert (force);
		2622	}
		2623	}
		2624

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