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Comparing deliantra/server/common/object.C (file contents):
Revision 1.74 by root, Wed Dec 20 09:14:21 2006 UTC vs.
Revision 1.233 by root, Tue May 6 18:47:32 2008 UTC

1	/*	1	/*
2	CrossFire, A Multiplayer game for X-windows	2	* This file is part of Deliantra, the Roguelike Realtime MMORPG.
3		3	*
		4	* Copyright (©) 2005,2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
4	Copyright (C) 2001 Mark Wedel & Crossfire Development Team	5	* Copyright (©) 2001,2007 Mark Wedel & Crossfire Development Team
5	Copyright (C) 1992 Frank Tore Johansen	6	* Copyright (©) 1992,2007 Frank Tore Johansen
6		7	*
7	This program is free software; you can redistribute it and/or modify	8	* Deliantra is free software: you can redistribute it and/or modify
8	it under the terms of the GNU General Public License as published by	9	* it under the terms of the GNU General Public License as published by
9	the Free Software Foundation; either version 2 of the License, or	10	* the Free Software Foundation, either version 3 of the License, or
10	(at your option) any later version.	11	* (at your option) any later version.
11		12	*
12	This program is distributed in the hope that it will be useful,	13	* This program is distributed in the hope that it will be useful,
13	but WITHOUT ANY WARRANTY; without even the implied warranty of	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15	GNU General Public License for more details.	16	* GNU General Public License for more details.
16		17	*
17	You should have received a copy of the GNU General Public License	18	* You should have received a copy of the GNU General Public License
18	along with this program; if not, write to the Free Software	19	* along with this program. If not, see <http://www.gnu.org/licenses/>.
19	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.	20	*
20		21	* The authors can be reached via e-mail to <support@deliantra.net>
21	The authors can be reached via e-mail at <crossfire@schmorp.de>
22	*/	22	*/
23		23
24	/* Eneq(@csd.uu.se): Added weight-modifiers in environment of objects.
25	sub/add_weight will transcend the environment updating the carrying
26	variable. */
27	#include <global.h>	24	#include <global.h>
28	#include <stdio.h>	25	#include <stdio.h>
29	#include <sys/types.h>	26	#include <sys/types.h>
30	#include <sys/uio.h>	27	#include <sys/uio.h>
31	#include <object.h>	28	#include <object.h>
32	#include <funcpoint.h>	29	#include <sproto.h>
33	#include <loader.h>	30	#include <loader.h>
34		31
35	#include <bitset>	32	#include <bitset>
36		33
37	int nrofallocobjects = 0;	34	UUID UUID::cur;
38	static UUID uuid;	35	static uint64_t seq_next_save;
39	const uint64 UUID_SKIP = 1<<19;	36	static const uint64 UUID_GAP = 1<<19;
40		37
41	object *active_objects; /* List of active objects that need to be processed */	38	objectvec objects;
		39	activevec actives;
42		40
43	short freearr_x[SIZEOFFREE] = { 0, 0, 1, 1, 1, 0, -1, -1, -1, 0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2, -2, -2, -2, -1,	41	short freearr_x[SIZEOFFREE] = {
		42	0,
		43	0, 1, 1, 1, 0, -1, -1, -1,
		44	0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2, -2, -2, -2, -1,
44	0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3, -3, -3, -3, -3, -2, -1	45	0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3, -3, -3, -3, -3, -2, -1
45	};	46	};
46	short freearr_y[SIZEOFFREE] = { 0, -1, -1, 0, 1, 1, 1, 0, -1, -2, -2, -2, -1, 0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2,	47	short freearr_y[SIZEOFFREE] = {
		48	0,
		49	-1, -1, 0, 1, 1, 1, 0, -1,
		50	-2, -2, -2, -1, 0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2,
47	-3, -3, -3, -3, -2, -1, 0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3	51	-3, -3, -3, -3, -2, -1, 0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3
48	};	52	};
49	int maxfree[SIZEOFFREE] = { 0, 9, 10, 13, 14, 17, 18, 21, 22, 25, 26, 27, 30, 31, 32, 33, 36, 37, 39, 39, 42, 43, 44, 45,	53	int maxfree[SIZEOFFREE] = {
		54	0,
		55	9, 10, 13, 14, 17, 18, 21, 22,
		56	25, 26, 27, 30, 31, 32, 33, 36, 37, 39, 39, 42, 43, 44, 45, 48,
50	48, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49	57	49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49
51	};	58	};
52	int freedir[SIZEOFFREE] = {	59	int freedir[SIZEOFFREE] = {
53	0, 1, 2, 3, 4, 5, 6, 7, 8, 1, 2, 2, 2, 3, 4, 4, 4, 5, 6, 6, 6, 7, 8, 8, 8,	60	0,
		61	1, 2, 3, 4, 5, 6, 7, 8,
		62	1, 2, 2, 2, 3, 4, 4, 4, 5, 6, 6, 6, 7, 8, 8, 8,
54	1, 2, 2, 2, 2, 2, 3, 4, 4, 4, 4, 4, 5, 6, 6, 6, 6, 6, 7, 8, 8, 8, 8, 8	63	1, 2, 2, 2, 2, 2, 3, 4, 4, 4, 4, 4, 5, 6, 6, 6, 6, 6, 7, 8, 8, 8, 8, 8
55	};	64	};
56		65
57	static void	66	static void
58	write_uuid (void)	67	write_uuid (uval64 skip, bool sync)
59	{	68	{
60	char filename1[MAX_BUF], filename2[MAX_BUF];	69	CALL_BEGIN (2);
61		70	CALL_ARG_SV (newSVval64 (skip));
62	sprintf (filename1, "%s/uuid", settings.localdir);	71	CALL_ARG_SV (boolSV (sync));
63	sprintf (filename2, "%s/uuid~", settings.localdir);	72	CALL_CALL ("cf::write_uuid", G_DISCARD);
64		73	CALL_END;
65	FILE *fp;
66
67	if (!(fp = fopen (filename2, "w")))
68	{
69	LOG (llevError, "ERROR: cannot open %s for writing, unable to write UUID!\n", filename2);
70	return;
71	}
72
73	fprintf (fp, "<1,%llx>\n", (unsigned long long)uuid.seq + UUID_SKIP * 2);
74	fclose (fp);
75	rename (filename2, filename1);
76	}	74	}
77		75
78	static void	76	static void
79	read_uuid (void)	77	read_uuid (void)
80	{	78	{
81	char filename[MAX_BUF];	79	char filename[MAX_BUF];
82		80
83	sprintf (filename, "%s/uuid", settings.localdir);	81	sprintf (filename, "%s/uuid", settings.localdir);
		82
		83	seq_next_save = 0;
84		84
85	FILE *fp;	85	FILE *fp;
86		86
87	if (!(fp = fopen (filename, "r")))	87	if (!(fp = fopen (filename, "r")))
88	{	88	{
89	if (errno == ENOENT)	89	if (errno == ENOENT)
90	{	90	{
91	LOG (llevInfo, "RESET uid to 1\n");	91	LOG (llevInfo, "RESET uid to 1\n");
92	uuid.seq = 0;	92	UUID::cur.seq = 0;
93	write_uuid ();	93	write_uuid (UUID_GAP, true);
94	return;	94	return;
95	}	95	}
96		96
97	LOG (llevError, "FATAL: cannot open %s for reading!\n", filename);	97	LOG (llevError, "FATAL: cannot open %s for reading!\n", filename);
98	_exit (1);	98	_exit (1);
99	}	99	}
100		100
101	int version;	101	UUID::BUF buf;
102	unsigned long long uid;	102	buf[0] = 0;
103	if (2 != fscanf (fp, "<%d,%llx>\n", &version, &uid) || version != 1)	103	fgets (buf, sizeof (buf), fp);
		104
		105	if (!UUID::cur.parse (buf))
104	{	106	{
105	LOG (llevError, "FATAL: error reading uid from %s!\n", filename);	107	LOG (llevError, "FATAL: error reading uid from %s (%s)!\n", filename, buf);
106	_exit (1);	108	_exit (1);
107	}	109	}
108		110
109	uuid.seq = uid;	111	LOG (llevDebug, "read UUID: %s\n", UUID::cur.c_str ());
110	write_uuid ();	112
111	LOG (llevDebug, "read UID: %" PRId64 "\n", uid);	113	write_uuid (UUID_GAP, true);
112	fclose (fp);	114	fclose (fp);
113	}	115	}
114		116
115	UUID	117	UUID
116	gen_uuid ()	118	UUID::gen ()
117	{	119	{
118	UUID uid;	120	UUID uid;
119		121
120	uid.seq = ++uuid.seq;	122	uid.seq = ++cur.seq;
121		123
122	if (!(uuid.seq & (UUID_SKIP - 1)))	124	if (expect_false (cur.seq >= seq_next_save))
123	write_uuid ();	125	{
		126	seq_next_save = UUID::cur.seq + (UUID_GAP >> 1);
		127	write_uuid (UUID_GAP, false);
		128	}
		129
124		130
125	return uid;	131	return uid;
126	}	132	}
127		133
128	void	134	void
129	init_uuid ()	135	UUID::init ()
130	{	136	{
131	read_uuid ();	137	read_uuid ();
132	}	138	}
133		139
134	/* Returns TRUE if every key_values in wants has a partner with the same value in has. */	140	/* Returns TRUE if every key_values in wants has a partner with the same value in has. */
135	static int	141	static bool
136	compare_ob_value_lists_one (const object *wants, const object *has)	142	compare_ob_value_lists_one (const object *wants, const object *has)
137	{	143	{
138	key_value *wants_field;
139
140	/* n-squared behaviour (see get_ob_key_link()), but I'm hoping both	144	/* n-squared behaviour (see kv_get), but I'm hoping both
141	* objects with lists are rare, and lists stay short. If not, use a	145	* objects with lists are rare, and lists stay short. If not, use a
142	* different structure or at least keep the lists sorted...	146	* different structure or at least keep the lists sorted...
143	*/	147	*/
144		148
145	/* For each field in wants, */	149	/* For each field in wants, */
146	for (wants_field = wants->key_values; wants_field != NULL; wants_field = wants_field->next)	150	for (key_value *kv = wants->key_values; kv; kv = kv->next)
147	{	151	if (has->kv_get (kv->key) != kv->value)
148	key_value *has_field;	152	return false;
149
150	/* Look for a field in has with the same key. */
151	has_field = get_ob_key_link (has, wants_field->key);
152
153	if (has_field == NULL)
154	{
155	/* No field with that name. */
156	return FALSE;
157	}
158
159	/* Found the matching field. */
160	if (has_field->value != wants_field->value)
161	{
162	/* Values don't match, so this half of the comparison is false. */
163	return FALSE;
164	}
165
166	/* If we get here, we found a match. Now for the next field in wants. */
167	}
168		153
169	/* If we get here, every field in wants has a matching field in has. */	154	/* If we get here, every field in wants has a matching field in has. */
170	return TRUE;	155	return true;
171	}	156	}
172		157
173	/* Returns TRUE if ob1 has the same key_values as ob2. */	158	/* Returns TRUE if ob1 has the same key_values as ob2. */
174	static int	159	static bool
175	compare_ob_value_lists (const object *ob1, const object *ob2)	160	compare_ob_value_lists (const object *ob1, const object *ob2)
176	{	161	{
177	/* However, there may be fields in has which aren't partnered in wants,	162	/* However, there may be fields in has which aren't partnered in wants,
178	* so we need to run the comparison *twice*. :(	163	* so we need to run the comparison *twice*. :(
179	*/	164	*/
180	return compare_ob_value_lists_one (ob1, ob2) && compare_ob_value_lists_one (ob2, ob1);	165	return compare_ob_value_lists_one (ob1, ob2)
		166	&& compare_ob_value_lists_one (ob2, ob1);
181	}	167	}
182		168
183	/* Function examines the 2 objects given to it, and returns true if	169	/* Function examines the 2 objects given to it, and returns true if
184	* they can be merged together.	170	* they can be merged together.
185	*	171	*
…		…
190	* Check nrof variable *before* calling can_merge()	176	* Check nrof variable *before* calling can_merge()
191	*	177	*
192	* Improvements made with merge: Better checking on potion, and also	178	* Improvements made with merge: Better checking on potion, and also
193	* check weight	179	* check weight
194	*/	180	*/
195
196	bool object::can_merge_slow (object *ob1, object *ob2)	181	bool object::can_merge_slow (object *ob1, object *ob2)
197	{	182	{
198	/* A couple quicksanity checks */	183	/* A couple quicksanity checks */
199	if (ob1 == ob2	184	if (ob1 == ob2
200	|| ob1->type != ob2->type	185	|| ob1->type != ob2->type
201	|| ob1->speed != ob2->speed	186	|| ob1->speed != ob2->speed
202	|| ob1->value != ob2->value	187	|| ob1->value != ob2->value
203	|| ob1->name != ob2->name)	188	|| ob1->name != ob2->name)
204	return 0;	189	return 0;
205		190
206	//TODO: this ain't working well, use nicer and correct overflow check	191	/* Do not merge objects if nrof would overflow. First part checks
207	/* Do not merge objects if nrof would overflow. We use 1UL<<31 since that	192	* for unsigned overflow (2c), second part checks whether the result
208	* value could not be stored in a sint32 (which unfortunately sometimes is	193	* would fit into a 32 bit signed int, which is often used to hold
209	* used to store nrof).	194	* nrof values.
210	*/	195	*/
211	if (ob1->nrof + ob2->nrof >= 1UL << 31)	196	if (~ob1->nrof < ob2->nrof || ob1->nrof + ob2->nrof > (1UL << 31))
212	return 0;	197	return 0;
213		198
214	/* If the objects have been identified, set the BEEN_APPLIED flag.	199	/* If the objects have been identified, set the BEEN_APPLIED flag.
215	* This is to the comparison of the flags below will be OK. We	200	* This is to the comparison of the flags below will be OK. We
216	* just can't ignore the been applied or identified flags, as they	201	* just can't ignore the been applied or identified flags, as they
217	* are not equal - just if it has been identified, the been_applied	202	* are not equal - just if it has been identified, the been_applied
218	* flags lose any meaning.	203	* flags lose any meaning.
219	*/	204	*/
220	if (QUERY_FLAG (ob1, FLAG_IDENTIFIED))	205	if (QUERY_FLAG (ob1, FLAG_IDENTIFIED))
221	SET_FLAG (ob1, FLAG_BEEN_APPLIED);	206	SET_FLAG (ob1, FLAG_BEEN_APPLIED);
222		207
223	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))	208	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))
224	SET_FLAG (ob2, FLAG_BEEN_APPLIED);	209	SET_FLAG (ob2, FLAG_BEEN_APPLIED);
225		210
226	if ((ob1->flags ^ ob2->flags).reset (FLAG_INV_LOCKED).reset (FLAG_CLIENT_SENT).any ()	211	if (ob1->arch->name != ob2->arch->name
227	|| ob1->arch != ob2->arch
228	|| ob1->name != ob2->name	212	|| ob1->name != ob2->name
229	|| ob1->title != ob2->title	213	|| ob1->title != ob2->title
230	|| ob1->msg != ob2->msg	214	|| ob1->msg != ob2->msg
231	|| ob1->weight != ob2->weight	215	|| ob1->weight != ob2->weight
232	|| memcmp (&ob1->resist, &ob2->resist, sizeof (ob1->resist))
233	|| memcmp (&ob1->stats , &ob2->stats , sizeof (ob1->stats) )
234	|| ob1->attacktype != ob2->attacktype	216	|| ob1->attacktype != ob2->attacktype
235	|| ob1->magic != ob2->magic	217	|| ob1->magic != ob2->magic
236	|| ob1->slaying != ob2->slaying	218	|| ob1->slaying != ob2->slaying
237	|| ob1->skill != ob2->skill	219	|| ob1->skill != ob2->skill
238	|| ob1->value != ob2->value	220	|| ob1->value != ob2->value
…		…
245	|| ob1->move_block != ob2->move_block	227	|| ob1->move_block != ob2->move_block
246	|| ob1->move_allow != ob2->move_allow	228	|| ob1->move_allow != ob2->move_allow
247	|| ob1->move_on != ob2->move_on	229	|| ob1->move_on != ob2->move_on
248	|| ob1->move_off != ob2->move_off	230	|| ob1->move_off != ob2->move_off
249	|| ob1->move_slow != ob2->move_slow	231	|| ob1->move_slow != ob2->move_slow
250	|| 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)))
251	return 0;	235	return 0;
252		236
		237	if ((ob1->flag ^ ob2->flag)
		238	.reset (FLAG_INV_LOCKED)
		239	.reset (FLAG_CLIENT_SENT)
		240	.reset (FLAG_REMOVED)
		241	.any ())
		242	return 0;
		243
253	/* This is really a spellbook check - really, we should	244	/* This is really a spellbook check - we should in general
254	* check all objects in the inventory.	245	* not merge objects with real inventories, as splitting them
		246	* is hard.
255	*/	247	*/
256	if (ob1->inv || ob2->inv)	248	if (ob1->inv || ob2->inv)
257	{	249	{
258	/* if one object has inventory but the other doesn't, not equiv */	250	if (!(ob1->inv && ob2->inv))
259	if ((ob1->inv && !ob2->inv) || (ob2->inv && !ob1->inv))	251	return 0; /* inventories differ in length */
260	return 0;
261		252
262	/* Now check to see if the two inventory objects could merge */	253	if (ob1->inv->below || ob2->inv->below)
		254	return 0; /* more than one object in inv */
		255
263	if (!object::can_merge (ob1->inv, ob2->inv))	256	if (!object::can_merge (ob1->inv, ob2->inv))
264	return 0;	257	return 0; /* inventory objects differ */
265		258
266	/* inventory ok - still need to check rest of this object to see	259	/* inventory ok - still need to check rest of this object to see
267	* if it is valid.	260	* if it is valid.
268	*/	261	*/
269	}	262	}
…		…
277		270
278	/* Note sure why the following is the case - either the object has to	271	/* Note sure why the following is the case - either the object has to
279	* be animated or have a very low speed. Is this an attempted monster	272	* be animated or have a very low speed. Is this an attempted monster
280	* check?	273	* check?
281	*/	274	*/
282	if (!QUERY_FLAG (ob1, FLAG_ANIMATE) && FABS ((ob1)->speed) > MIN_ACTIVE_SPEED)	275	if (!QUERY_FLAG (ob1, FLAG_ANIMATE) && ob1->has_active_speed ())
283	return 0;	276	return 0;
284		277
285	switch (ob1->type)	278	switch (ob1->type)
286	{	279	{
287	case SCROLL:	280	case SCROLL:
288	if (ob1->level != ob2->level)	281	if (ob1->level != ob2->level)
289	return 0;	282	return 0;
290	break;	283	break;
291	}	284	}
292		285
293	if (ob1->key_values != NULL || ob2->key_values != NULL)	286	if (ob1->key_values || ob2->key_values)
294	{	287	{
295	/* At least one of these has key_values. */	288	/* At least one of these has key_values. */
296	if ((ob1->key_values == NULL) != (ob2->key_values == NULL))	289	if ((!ob1->key_values) != (!ob2->key_values))
297	/* One has fields, but the other one doesn't. */	290	return 0; /* One has fields, but the other one doesn't. */
		291
		292	if (!compare_ob_value_lists (ob1, ob2))
298	return 0;	293	return 0;
299	else if (!compare_ob_value_lists (ob1, ob2))
300	return 0;
301	}	294	}
302		295
303	//TODO: generate an event or call into perl for additional checks
304	if (ob1->self || ob2->self)	296	if (ob1->self || ob2->self)
305	{	297	{
306	ob1->optimise ();	298	ob1->optimise ();
307	ob2->optimise ();	299	ob2->optimise ();
308		300
309	if (ob1->self || ob2->self)	301	if (ob1->self || ob2->self)
		302	{
		303	int k1 = ob1->self ? HvTOTALKEYS (ob1->self) : 0;
		304	int k2 = ob2->self ? HvTOTALKEYS (ob2->self) : 0;
		305
		306	if (k1 != k2)
310	return 0;	307	return 0;
		308
		309	if (k1 == 0)
		310	return 1;
		311
		312	if (!cfperl_can_merge (ob1, ob2))
		313	return 0;
		314	}
311	}	315	}
312		316
313	/* Everything passes, must be OK. */	317	/* Everything passes, must be OK. */
314	return 1;	318	return 1;
315	}	319	}
316		320
		321	// find player who can see this object
		322	object *
		323	object::visible_to () const
		324	{
		325	if (client_visible () && !flag [FLAG_REMOVED])
		326	{
		327	// see if we are in a container of sorts
		328	if (env)
		329	{
		330	// the player inventory itself is always visible
		331	if (env->type == PLAYER)
		332	return env;
		333
		334	// else a player could have our env open
		335	object *envest = env->outer_env ();
		336
		337	// the player itself is always on a map, so we will find him here
		338	// even if our inv is in a player.
		339	if (envest->is_on_map ())
		340	if (object *pl = envest->ms ().player ())
		341	if (pl->container == env)
		342	return pl;
		343	}
		344	else
		345	{
		346	// maybe there is a player standing on the same mapspace
		347	// this will catch the case where "this" is a player
		348	if (object *pl = ms ().player ())
		349	if (!pl->container || this == pl->container)
		350	return pl;
		351	}
		352	}
		353
		354	return 0;
		355	}
		356
		357	// adjust weight per container type ("of holding")
		358	static sint32
		359	weight_adjust_for (object *op, sint32 weight)
		360	{
		361	return op->type == CONTAINER
		362	? lerp (weight, 0, 100, 0, 100 - op->stats.Str)
		363	: weight;
		364	}
		365
317	/*	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	/*
318	* sum_weight() is a recursive function which calculates the weight	394	* this is a recursive function which calculates the weight
319	* 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
320	* containers are carrying, and sums it up.	396	* containers are carrying, and sums it up.
321	*/	397	*/
322	long	398	void
323	sum_weight (object *op)	399	object::update_weight ()
324	{	400	{
325	long sum;	401	sint32 sum = 0;
326	object *inv;
327		402
328	for (sum = 0, inv = op->inv; inv != NULL; inv = inv->below)	403	for (object *op = inv; op; op = op->below)
329	{	404	{
330	if (inv->inv)	405	if (op->inv)
331	sum_weight (inv);	406	op->update_weight ();
332	sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1);	407
		408	sum += op->total_weight ();
		409	}
		410
		411	sum = weight_adjust (this, sum);
		412
		413	if (sum != carrying)
333	}	414	{
334
335	if (op->type == CONTAINER && op->stats.Str)
336	sum = (sum * (100 - op->stats.Str)) / 100;
337
338	if (op->carrying != sum)
339	op->carrying = sum;	415	carrying = sum;
340		416
341	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	}
342	}	421	}
343		422
344	/**	423	/*
345	* Return the outermost environment object for a given object.	424	* Used by: Server DM commands: dumpbelow, dump. Some error messages.
346	*/	425	*/
347
348	object *
349	object_get_env_recursive (object *op)
350	{
351	while (op->env != NULL)
352	op = op->env;
353	return op;
354	}
355
356	/*
357	* Used by: Crossedit: dump. Server DM commands: dumpbelow, dump.
358	* Some error messages.
359	* The result of the dump is stored in the static global errmsg array.
360	*/
361
362	char *	426	char *
363	dump_object (object *op)	427	dump_object (object *op)
364	{	428	{
365	if (!op)	429	if (!op)
366	return strdup ("[NULLOBJ]");	430	return strdup ("[NULLOBJ]");
367		431
368	object_freezer freezer;	432	object_freezer freezer;
369	save_object (freezer, op, 3);	433	op->write (freezer);
370	return freezer.as_string ();	434	return freezer.as_string ();
371	}	435	}
372		436
373	/*	437	/*
374	* get_nearest_part(multi-object, object 2) returns the part of the	438	* get_nearest_part(multi-object, object 2) returns the part of the
375	* multi-object 1 which is closest to the second object.	439	* multi-object 1 which is closest to the second object.
376	* If it's not a multi-object, it is returned.	440	* If it's not a multi-object, it is returned.
377	*/	441	*/
378
379	object *	442	object *
380	get_nearest_part (object *op, const object *pl)	443	get_nearest_part (object *op, const object *pl)
381	{	444	{
382	object *tmp, *closest;	445	object *tmp, *closest;
383	int last_dist, i;	446	int last_dist, i;
384		447
385	if (op->more == NULL)	448	if (!op->more)
386	return op;	449	return op;
		450
387	for (last_dist = distance (op, pl), closest = op, tmp = op->more; tmp != NULL; tmp = tmp->more)	451	for (last_dist = distance (op, pl), closest = op, tmp = op->more;
		452	tmp;
		453	tmp = tmp->more)
388	if ((i = distance (tmp, pl)) < last_dist)	454	if ((i = distance (tmp, pl)) < last_dist)
389	closest = tmp, last_dist = i;	455	closest = tmp, last_dist = i;
		456
390	return closest;	457	return closest;
391	}	458	}
392		459
393	/*	460	/*
394	* Returns the object which has the count-variable equal to the argument.	461	* Returns the object which has the count-variable equal to the argument.
		462	* VERRRY slow.
395	*/	463	*/
396
397	object *	464	object *
398	find_object (tag_t i)	465	find_object (tag_t i)
399	{	466	{
400	for (object *op = object::first; op; op = op->next)	467	for_all_objects (op)
401	if (op->count == i)	468	if (op->count == i)
402	return op;	469	return op;
403		470
404	return 0;	471	return 0;
405	}	472	}
406		473
407	/*	474	/*
408	* Returns the first object which has a name equal to the argument.	475	* Returns the first object which has a name equal to the argument.
409	* Used only by the patch command, but not all that useful.	476	* Used only by the patch command, but not all that useful.
410	* Enables features like "patch <name-of-other-player> food 999"	477	* Enables features like "patch <name-of-other-player> food 999"
411	*/	478	*/
412
413	object *	479	object *
414	find_object_name (const char *str)	480	find_object_name (const char *str)
415	{	481	{
416	shstr_cmp str_ (str);	482	shstr_cmp str_ (str);
417	object *op;	483	object *op;
418		484
419	for (op = object::first; op != NULL; op = op->next)	485	for_all_objects (op)
420	if (op->name == str_)	486	if (op->name == str_)
421	break;	487	break;
422		488
423	return op;	489	return op;
424	}	490	}
425		491
426	void
427	free_all_object_data ()
428	{
429	LOG (llevDebug, "%d allocated objects\n", nrofallocobjects);
430	}
431
432	/*	492	/*
433	* Sets the owner and sets the skill and exp pointers to owner's current	493	* Sets the owner and sets the skill and exp pointers to owner's current
434	* skill and experience objects.	494	* skill and experience objects.
		495	* ACTUALLY NO! investigate! TODO
435	*/	496	*/
436	void	497	void
437	object::set_owner (object *owner)	498	object::set_owner (object *owner)
438	{	499	{
		500	// allow objects which own objects
439	if (!owner)	501	if (owner)
440	return;
441
442	/* next line added to allow objects which own objects */
443	/* Add a check for ownercounts in here, as I got into an endless loop
444	* with the fireball owning a poison cloud which then owned the
445	* fireball. I believe that was caused by one of the objects getting
446	* freed and then another object replacing it. Since the ownercounts
447	* didn't match, this check is valid and I believe that cause is valid.
448	*/
449	while (owner->owner)	502	while (owner->owner)
450	owner = owner->owner;	503	owner = owner->owner;
		504
		505	if (flag [FLAG_FREED])
		506	{
		507	LOG (llevError | logBacktrace, "tried to set owner of %s to %s\n", debug_desc (), owner->debug_desc ());
		508	return;
		509	}
451		510
452	this->owner = owner;	511	this->owner = owner;
		512	}
		513
		514	int
		515	object::slottype () const
		516	{
		517	if (type == SKILL)
		518	{
		519	if (IS_COMBAT_SKILL (subtype)) return slot_combat;
		520	if (IS_RANGED_SKILL (subtype)) return slot_ranged;
		521	}
		522	else
		523	{
		524	if (slot [body_combat].info) return slot_combat;
		525	if (slot [body_range ].info) return slot_ranged;
		526	}
		527
		528	return slot_none;
		529	}
		530
		531	bool
		532	object::change_weapon (object *ob)
		533	{
		534	if (current_weapon == ob)
		535	return true;
		536
		537	if (chosen_skill)
		538	chosen_skill->flag [FLAG_APPLIED] = false;
		539
		540	current_weapon = ob;
		541	chosen_skill = !ob || ob->type == SKILL ? ob : find_skill_by_name (this, ob->skill);
		542
		543	if (chosen_skill)
		544	chosen_skill->flag [FLAG_APPLIED] = true;
		545
		546	update_stats ();
		547
		548	if (ob)
		549	{
		550	// now check wether any body locations became invalid, in which case
		551	// we cannot apply the weapon at the moment.
		552	for (int i = 0; i < NUM_BODY_LOCATIONS; ++i)
		553	if (slot[i].used < 0)
		554	{
		555	current_weapon = chosen_skill = 0;
		556	update_stats ();
		557
		558	new_draw_info_format (NDI_UNIQUE, 0, this,
		559	"You try to balance all your items at once, "
		560	"but the %s is just too much for your body. "
		561	"[You need to unapply some items first.]", &ob->name);
		562	return false;
		563	}
		564
		565	//new_draw_info_format (NDI_UNIQUE, 0, this, "You switch to your %s.", &ob->name);
		566	}
		567	else
		568	;//new_draw_info_format (NDI_UNIQUE, 0, this, "You unwield your weapons.");
		569
		570	if (ob && !ob->flag [FLAG_APPLIED] && ob->type != SPELL)
		571	{
		572	LOG (llevError | logBacktrace, "%s changed to unapplied weapon %s",
		573	&name, ob->debug_desc ());
		574	return false;
		575	}
		576
		577	return true;
453	}	578	}
454		579
455	/* Zero the key_values on op, decrementing the shared-string	580	/* Zero the key_values on op, decrementing the shared-string
456	* refcounts and freeing the links.	581	* refcounts and freeing the links.
457	*/	582	*/
458	static void	583	static void
459	free_key_values (object *op)	584	free_key_values (object *op)
460	{	585	{
461	for (key_value *i = op->key_values; i != 0;)	586	for (key_value *i = op->key_values; i; )
462	{	587	{
463	key_value *next = i->next;	588	key_value *next = i->next;
464	delete i;	589	delete i;
465		590
466	i = next;	591	i = next;
467	}	592	}
468		593
469	op->key_values = 0;	594	op->key_values = 0;
470	}
471
472	void object::clear ()
473	{
474	attachable_base::clear ();
475
476	free_key_values (this);
477
478	owner = 0;
479	name = 0;
480	name_pl = 0;
481	title = 0;
482	race = 0;
483	slaying = 0;
484	skill = 0;
485	msg = 0;
486	lore = 0;
487	custom_name = 0;
488	materialname = 0;
489	contr = 0;
490	below = 0;
491	above = 0;
492	inv = 0;
493	container = 0;
494	env = 0;
495	more = 0;
496	head = 0;
497	map = 0;
498	active_next = 0;
499	active_prev = 0;
500
501	memset (static_cast<object_pod *>(this), 0, sizeof (object_pod));
502
503	SET_FLAG (this, FLAG_REMOVED);
504
505	/* What is not cleared is next, prev, and count */
506
507	expmul = 1.0;
508	face = blank_face;
509
510	if (settings.casting_time)
511	casting_time = -1;
512	}	595	}
513		596
514	/*	597	/*
515	* copy_to first frees everything allocated by the dst object,	598	* copy_to first frees everything allocated by the dst object,
516	* and then copies the contents of itself into the second	599	* and then copies the contents of itself into the second
…		…
520	* will point at garbage.	603	* will point at garbage.
521	*/	604	*/
522	void	605	void
523	object::copy_to (object *dst)	606	object::copy_to (object *dst)
524	{	607	{
525	bool is_freed = QUERY_FLAG (dst, FLAG_FREED);	608	dst->remove ();
526	bool is_removed = QUERY_FLAG (dst, FLAG_REMOVED);
527
528	*(object_copy *)dst = *this;	609	*(object_copy *)dst = *this;
529	*(object_pod *)dst = *this;	610	dst->flag [FLAG_REMOVED] = true;
530
531	if (self || cb)
532	INVOKE_OBJECT (CLONE, this, ARG_OBJECT (dst));
533
534	if (is_freed)
535	SET_FLAG (dst, FLAG_FREED);
536
537	if (is_removed)
538	SET_FLAG (dst, FLAG_REMOVED);
539
540	if (speed < 0)
541	dst->speed_left = speed_left - RANDOM () % 200 / 100.0;
542		611
543	/* Copy over key_values, if any. */	612	/* Copy over key_values, if any. */
544	if (key_values)	613	if (key_values)
545	{	614	{
546	key_value *tail = 0;	615	key_value *tail = 0;
547	key_value *i;
548
549	dst->key_values = 0;	616	dst->key_values = 0;
550		617
551	for (i = key_values; i; i = i->next)	618	for (key_value *i = key_values; i; i = i->next)
552	{	619	{
553	key_value *new_link = new key_value;	620	key_value *new_link = new key_value;
554		621
555	new_link->next = 0;	622	new_link->next = 0;
556	new_link->key = i->key;	623	new_link->key = i->key;
557	new_link->value = i->value;	624	new_link->value = i->value;
558		625
559	/* Try and be clever here, too. */	626	/* Try and be clever here, too. */
560	if (!dst->key_values)	627	if (!dst->key_values)
561	{	628	{
…		…
568	tail = new_link;	635	tail = new_link;
569	}	636	}
570	}	637	}
571	}	638	}
572		639
573	update_ob_speed (dst);	640	if (speed < 0)
		641	dst->speed_left -= rndm ();
		642
		643	dst->set_speed (dst->speed);
		644	}
		645
		646	void
		647	object::instantiate ()
		648	{
		649	if (!uuid.seq) // HACK
		650	uuid = UUID::gen ();
		651
		652	speed_left = -0.1f;
		653	/* copy the body_info to the body_used - this is only really
		654	* need for monsters, but doesn't hurt to do it for everything.
		655	* by doing so, when a monster is created, it has good starting
		656	* values for the body_used info, so when items are created
		657	* for it, they can be properly equipped.
		658	*/
		659	for (int i = NUM_BODY_LOCATIONS; i--; )
		660	slot[i].used = slot[i].info;
		661
		662	attachable::instantiate ();
574	}	663	}
575		664
576	object *	665	object *
577	object::clone ()	666	object::clone ()
578	{	667	{
579	object *neu = create ();	668	object *neu = create ();
580	copy_to (neu);	669	copy_to (neu);
		670	neu->map = map; // not copied by copy_to
581	return neu;	671	return neu;
582	}	672	}
583		673
584	/*	674	/*
585	* If an object with the IS_TURNABLE() flag needs to be turned due	675	* If an object with the IS_TURNABLE() flag needs to be turned due
586	* to the closest player being on the other side, this function can	676	* to the closest player being on the other side, this function can
587	* be called to update the face variable, _and_ how it looks on the map.	677	* be called to update the face variable, _and_ how it looks on the map.
588	*/	678	*/
589
590	void	679	void
591	update_turn_face (object *op)	680	update_turn_face (object *op)
592	{	681	{
593	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || op->arch == NULL)	682	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || !op->arch)
594	return;	683	return;
		684
595	SET_ANIMATION (op, op->direction);	685	SET_ANIMATION (op, op->direction);
596	update_object (op, UP_OBJ_FACE);	686	update_object (op, UP_OBJ_FACE);
597	}	687	}
598		688
599	/*	689	/*
600	* Updates the speed of an object. If the speed changes from 0 to another	690	* Updates the speed of an object. If the speed changes from 0 to another
601	* value, or vice versa, then add/remove the object from the active list.	691	* value, or vice versa, then add/remove the object from the active list.
602	* This function needs to be called whenever the speed of an object changes.	692	* This function needs to be called whenever the speed of an object changes.
603	*/	693	*/
604	void	694	void
605	update_ob_speed (object *op)	695	object::set_speed (float speed)
606	{	696	{
607	extern int arch_init;	697	if (flag [FLAG_FREED] && speed)
608
609	/* No reason putting the archetypes objects on the speed list,
610	* since they never really need to be updated.
611	*/
612
613	if (QUERY_FLAG (op, FLAG_FREED) && op->speed)
614	{	698	{
615	LOG (llevError, "Object %s is freed but has speed.\n", &op->name);	699	LOG (llevError, "Object %s is freed but has speed.\n", &name);
616	#ifdef MANY_CORES
617	abort ();
618	#else
619	op->speed = 0;	700	speed = 0;
620	#endif
621	}
622
623	if (arch_init)
624	return;
625
626	if (FABS (op->speed) > MIN_ACTIVE_SPEED)
627	{	701	}
628	/* If already on active list, don't do anything */
629	if (op->active_next || op->active_prev || op == active_objects)
630	return;
631		702
632	/* process_events() expects us to insert the object at the beginning	703	this->speed = speed;
633	* of the list. */
634	op->active_next = active_objects;
635		704
636	if (op->active_next != NULL)	705	if (has_active_speed ())
637	op->active_next->active_prev = op;	706	activate ();
638
639	active_objects = op;
640	}
641	else	707	else
642	{	708	deactivate ();
643	/* If not on the active list, nothing needs to be done */
644	if (!op->active_next && !op->active_prev && op != active_objects)
645	return;
646
647	if (op->active_prev == NULL)
648	{
649	active_objects = op->active_next;
650
651	if (op->active_next != NULL)
652	op->active_next->active_prev = NULL;
653	}
654	else
655	{
656	op->active_prev->active_next = op->active_next;
657
658	if (op->active_next)
659	op->active_next->active_prev = op->active_prev;
660	}
661
662	op->active_next = NULL;
663	op->active_prev = NULL;
664	}
665	}	709	}
666		710
667	/* This function removes object 'op' from the list of active
668	* objects.
669	* This should only be used for style maps or other such
670	* reference maps where you don't want an object that isn't
671	* in play chewing up cpu time getting processed.
672	* The reverse of this is to call update_ob_speed, which
673	* will do the right thing based on the speed of the object.
674	*/
675	void
676	remove_from_active_list (object *op)
677	{
678	/* If not on the active list, nothing needs to be done */
679	if (!op->active_next && !op->active_prev && op != active_objects)
680	return;
681
682	if (op->active_prev == NULL)
683	{
684	active_objects = op->active_next;
685	if (op->active_next != NULL)
686	op->active_next->active_prev = NULL;
687	}
688	else
689	{
690	op->active_prev->active_next = op->active_next;
691	if (op->active_next)
692	op->active_next->active_prev = op->active_prev;
693	}
694	op->active_next = NULL;
695	op->active_prev = NULL;
696	}
697
698	/*	711	/*
699	* update_object() updates the array which represents the map.	712	* update_object() updates the the map.
700	* It takes into account invisible objects (and represent squares covered	713	* It takes into account invisible objects (and represent squares covered
701	* by invisible objects by whatever is below them (unless it's another	714	* by invisible objects by whatever is below them (unless it's another
702	* invisible object, etc...)	715	* invisible object, etc...)
703	* If the object being updated is beneath a player, the look-window	716	* If the object being updated is beneath a player, the look-window
704	* of that player is updated (this might be a suboptimal way of	717	* of that player is updated (this might be a suboptimal way of
705	* updating that window, though, since update_object() is called _often_)	718	* updating that window, though, since update_object() is called _often_)
706	*	719	*
707	* action is a hint of what the caller believes need to be done.	720	* action is a hint of what the caller believes need to be done.
708	* For example, if the only thing that has changed is the face (due to
709	* an animation), we don't need to call update_position until that actually
710	* comes into view of a player. OTOH, many other things, like addition/removal
711	* of walls or living creatures may need us to update the flags now.
712	* current action are:	721	* current action are:
713	* UP_OBJ_INSERT: op was inserted	722	* UP_OBJ_INSERT: op was inserted
714	* UP_OBJ_REMOVE: op was removed	723	* UP_OBJ_REMOVE: op was removed
715	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update	724	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update
716	* as that is easier than trying to look at what may have changed.	725	* as that is easier than trying to look at what may have changed.
717	* UP_OBJ_FACE: only the objects face has changed.	726	* UP_OBJ_FACE: only the objects face has changed.
718	*/	727	*/
719
720	void	728	void
721	update_object (object *op, int action)	729	update_object (object *op, int action)
722	{	730	{
723	int update_now = 0, flags;	731	if (!op)
724	MoveType move_on, move_off, move_block, move_slow;
725
726	if (op == NULL)
727	{	732	{
728	/* this should never happen */	733	/* this should never happen */
729	LOG (llevDebug, "update_object() called for NULL object.\n");	734	LOG (llevError | logBacktrace, "update_object() called for NULL object.\n");
730	return;	735	return;
731	}	736	}
732		737
733	if (op->env != NULL)	738	if (!op->is_on_map ())
734	{	739	{
735	/* Animation is currently handled by client, so nothing	740	/* Animation is currently handled by client, so nothing
736	* to do in this case.	741	* to do in this case.
737	*/	742	*/
738	return;	743	return;
739	}	744	}
740		745
741	/* If the map is saving, don't do anything as everything is
742	* going to get freed anyways.
743	*/
744	if (!op->map || op->map->in_memory == MAP_SAVING)
745	return;
746
747	/* make sure the object is within map boundaries */	746	/* make sure the object is within map boundaries */
748	if (op->x < 0 || op->x >= MAP_WIDTH (op->map) || op->y < 0 || op->y >= MAP_HEIGHT (op->map))	747	if (op->x < 0 || op->x >= op->map->width || op->y < 0 || op->y >= op->map->height)
749	{	748	{
750	LOG (llevError, "update_object() called for object out of map!\n");	749	LOG (llevError, "update_object() called for object out of map!\n");
751	#ifdef MANY_CORES	750	#ifdef MANY_CORES
752	abort ();	751	abort ();
753	#endif	752	#endif
754	return;	753	return;
755	}	754	}
756		755
757	flags = GET_MAP_FLAGS (op->map, op->x, op->y);	756	mapspace &m = op->ms ();
758	SET_MAP_FLAGS (op->map, op->x, op->y, flags | P_NEED_UPDATE);
759	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);
760	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);
761	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);
762	move_off = GET_MAP_MOVE_OFF (op->map, op->x, op->y);
763		757
		758	if (!(m.flags_ & P_UPTODATE))
		759	/* nop */;
764	if (action == UP_OBJ_INSERT)	760	else if (action == UP_OBJ_INSERT)
765	{	761	{
		762	// this is likely overkill, TODO: revisit (schmorp)
766	if (QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(flags & P_BLOCKSVIEW))	763	if ((QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(m.flags_ & P_BLOCKSVIEW))
767	update_now = 1;
768
769	if (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(flags & P_NO_MAGIC))	764	|| (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(m.flags_ & P_NO_MAGIC))
770	update_now = 1;	765	|| (op->type == PLAYER && !(m.flags_ & P_PLAYER))
771		766	|| (op->type == SAFE_GROUND && !(m.flags_ & P_SAFE))
		767	|| (QUERY_FLAG (op, FLAG_ALIVE) && !(m.flags_ & P_IS_ALIVE))
772	if (QUERY_FLAG (op, FLAG_DAMNED) && !(flags & P_NO_CLERIC))	768	|| (QUERY_FLAG (op, FLAG_DAMNED) && !(m.flags_ & P_NO_CLERIC))
773	update_now = 1;
774
775	if (QUERY_FLAG (op, FLAG_ALIVE) && !(flags & P_IS_ALIVE))
776	update_now = 1;
777
778	if (op->type == SAFE_GROUND && !(flags & P_SAFE))
779	update_now = 1;
780
781	if ((move_on | op->move_on) != move_on)	769	|| (m.move_on | op->move_on ) != m.move_on
782	update_now = 1;
783
784	if ((move_off | op->move_off) != move_off)	770	|| (m.move_off | op->move_off ) != m.move_off
785	update_now = 1;	771	|| (m.move_slow | op->move_slow) != m.move_slow
786
787	/* This isn't perfect, but I don't expect a lot of objects to	772	/* This isn't perfect, but I don't expect a lot of objects to
788	* to have move_allow right now.	773	* to have move_allow right now.
789	*/	774	*/
790	if (((move_block | op->move_block) & ~op->move_allow) != move_block)	775	|| ((m.move_block | op->move_block) & ~op->move_allow) != m.move_block
791	update_now = 1;	776	|| 1) // the above is not strong enough a test to skip updating. los maybe? TODO (Schmorp)
792		777	m.flags_ = 0;
793	if ((move_slow | op->move_slow) != move_slow)
794	update_now = 1;
795	}	778	}
796
797	/* if the object is being removed, we can't make intelligent	779	/* if the object is being removed, we can't make intelligent
798	* decisions, because remove_ob can't really pass the object	780	* decisions, because remove_ob can't really pass the object
799	* that is being removed.	781	* that is being removed.
800	*/	782	*/
801	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)	783	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)
802	update_now = 1;	784	m.flags_ = 0;
803	else if (action == UP_OBJ_FACE)	785	else if (action == UP_OBJ_FACE)
804	/* Nothing to do for that case */ ;	786	/* Nothing to do for that case */ ;
805	else	787	else
806	LOG (llevError, "update_object called with invalid action: %d\n", action);	788	LOG (llevError, "update_object called with invalid action: %d\n", action);
807		789
808	if (update_now)
809	{
810	SET_MAP_FLAGS (op->map, op->x, op->y, flags | P_NO_ERROR | P_NEED_UPDATE);
811	update_position (op->map, op->x, op->y);
812	}
813
814	if (op->more != NULL)	790	if (op->more)
815	update_object (op->more, action);	791	update_object (op->more, action);
816	}
817
818	object::vector object::mortals;
819	object::vector object::objects; // not yet used
820	object *object::first;
821
822	void object::free_mortals ()
823	{
824	for (AUTODECL (i, mortals.begin ()); i != mortals.end ();)
825	if ((*i)->refcnt)
826	++i; // further delay freeing
827	else
828	{
829	delete *i;
830	mortals.erase (i);
831	}
832	}	792	}
833		793
834	object::object ()	794	object::object ()
835	{	795	{
836	SET_FLAG (this, FLAG_REMOVED);	796	SET_FLAG (this, FLAG_REMOVED);
…		…
839	face = blank_face;	799	face = blank_face;
840	}	800	}
841		801
842	object::~object ()	802	object::~object ()
843	{	803	{
		804	unlink ();
		805
844	free_key_values (this);	806	free_key_values (this);
845	}	807	}
846		808
		809	static int object_count;
		810
847	void object::link ()	811	void object::link ()
848	{	812	{
		813	assert (!index);//D
		814	uuid = UUID::gen ();
849	count = ++ob_count;	815	count = ++object_count;
850	uuid = gen_uuid ();
851		816
852	prev = 0;	817	refcnt_inc ();
853	next = object::first;	818	objects.insert (this);
854
855	if (object::first)
856	object::first->prev = this;
857
858	object::first = this;
859	}	819	}
860		820
861	void object::unlink ()	821	void object::unlink ()
862	{	822	{
863	if (this == object::first)	823	if (!index)
864	object::first = next;	824	return;
865		825
866	/* Remove this object from the list of used objects */	826	objects.erase (this);
867	if (prev) prev->next = next;	827	refcnt_dec ();
868	if (next) next->prev = prev;	828	}
869		829
870	prev = 0;	830	void
871	next = 0;	831	object::activate ()
		832	{
		833	/* If already on active list, don't do anything */
		834	if (active)
		835	return;
		836
		837	if (has_active_speed ())
		838	actives.insert (this);
		839	}
		840
		841	void
		842	object::activate_recursive ()
		843	{
		844	activate ();
		845
		846	for (object *op = inv; op; op = op->below)
		847	op->activate_recursive ();
		848	}
		849
		850	/* This function removes object 'op' from the list of active
		851	* objects.
		852	* This should only be used for style maps or other such
		853	* reference maps where you don't want an object that isn't
		854	* in play chewing up cpu time getting processed.
		855	* The reverse of this is to call update_ob_speed, which
		856	* will do the right thing based on the speed of the object.
		857	*/
		858	void
		859	object::deactivate ()
		860	{
		861	/* If not on the active list, nothing needs to be done */
		862	if (!active)
		863	return;
		864
		865	actives.erase (this);
		866	}
		867
		868	void
		869	object::deactivate_recursive ()
		870	{
		871	for (object *op = inv; op; op = op->below)
		872	op->deactivate_recursive ();
		873
		874	deactivate ();
		875	}
		876
		877	void
		878	object::set_flag_inv (int flag, int value)
		879	{
		880	for (object *op = inv; op; op = op->below)
		881	{
		882	op->flag [flag] = value;
		883	op->set_flag_inv (flag, value);
		884	}
		885	}
		886
		887	/*
		888	* Remove and free all objects in the inventory of the given object.
		889	* object.c ?
		890	*/
		891	void
		892	object::destroy_inv (bool drop_to_ground)
		893	{
		894	// need to check first, because the checks below might segfault
		895	// as we might be on an invalid mapspace and crossfire code
		896	// is too buggy to ensure that the inventory is empty.
		897	// corollary: if you create arrows etc. with stuff in its inventory,
		898	// cf will crash below with off-map x and y
		899	if (!inv)
		900	return;
		901
		902	/* Only if the space blocks everything do we not process -
		903	* if some form of movement is allowed, let objects
		904	* drop on that space.
		905	*/
		906	if (!drop_to_ground
		907	|| !map
		908	|| map->in_memory != MAP_ACTIVE
		909	|| map->nodrop
		910	|| ms ().move_block == MOVE_ALL)
		911	{
		912	while (inv)
		913	{
		914	inv->destroy_inv (false);
		915	inv->destroy ();
		916	}
		917	}
		918	else
		919	{ /* Put objects in inventory onto this space */
		920	while (inv)
		921	{
		922	object *op = inv;
		923
		924	if (op->flag [FLAG_STARTEQUIP]
		925	|| op->flag [FLAG_NO_DROP]
		926	|| op->type == RUNE
		927	|| op->type == TRAP
		928	|| op->flag [FLAG_IS_A_TEMPLATE]
		929	|| op->flag [FLAG_DESTROY_ON_DEATH])
		930	op->destroy (true);
		931	else
		932	map->insert (op, x, y);
		933	}
		934	}
872	}	935	}
873		936
874	object *object::create ()	937	object *object::create ()
875	{	938	{
876	object *op = new object;	939	object *op = new object;
877	op->link ();	940	op->link ();
878	return op;	941	return op;
879	}	942	}
880		943
881	/*	944	static struct freed_map : maptile
882	* free_object() frees everything allocated by an object, removes	945	{
883	* it from the list of used objects, and puts it on the list of	946	freed_map ()
884	* free objects. The IS_FREED() flag is set in the object.	947	{
885	* The object must have been removed by remove_ob() first for	948	path = "<freed objects map>";
886	* this function to succeed.	949	name = "/internal/freed_objects_map";
887	*	950	width = 3;
888	* If destroy_inventory is set, free inventory as well. Else drop items in	951	height = 3;
889	* inventory to the ground.	952	nodrop = 1;
890	*/	953
		954	alloc ();
		955	in_memory = MAP_ACTIVE;
		956	}
		957
		958	~freed_map ()
		959	{
		960	destroy ();
		961	}
		962	} freed_map; // freed objects are moved here to avoid crashes
		963
		964	void
		965	object::do_destroy ()
		966	{
		967	if (flag [FLAG_IS_LINKED])
		968	remove_button_link (this);
		969
		970	if (flag [FLAG_FRIENDLY])
		971	remove_friendly_object (this);
		972
		973	remove ();
		974
		975	attachable::do_destroy ();
		976
		977	deactivate ();
		978	unlink ();
		979
		980	flag [FLAG_FREED] = 1;
		981
		982	// hack to ensure that freed objects still have a valid map
		983	map = &freed_map;
		984	x = 1;
		985	y = 1;
		986
		987	if (more)
		988	{
		989	more->destroy ();
		990	more = 0;
		991	}
		992
		993	head = 0;
		994
		995	// clear those pointers that likely might cause circular references
		996	owner = 0;
		997	enemy = 0;
		998	attacked_by = 0;
		999	current_weapon = 0;
		1000	}
		1001
		1002	void
891	void object::destroy (bool destroy_inventory)	1003	object::destroy (bool destroy_inventory)
892	{	1004	{
893	if (QUERY_FLAG (this, FLAG_FREED))	1005	if (destroyed ())
894	return;	1006	return;
895		1007
896	if (QUERY_FLAG (this, FLAG_FRIENDLY))	1008	if (!is_head () && !head->destroyed ())
897	remove_friendly_object (this);
898
899	if (!QUERY_FLAG (this, FLAG_REMOVED))
900	remove ();
901
902	SET_FLAG (this, FLAG_FREED);
903
904	if (more)
905	{	1009	{
		1010	LOG (llevError | logBacktrace, "tried to destroy the tail of an object");
906	more->destroy (destroy_inventory);	1011	head->destroy (destroy_inventory);
907	more = 0;	1012	return;
908	}
909
910	if (inv)
911	{
912	/* Only if the space blocks everything do we not process -
913	* if some form of movement is allowed, let objects
914	* drop on that space.
915	*/
916	if (destroy_inventory || !map || map->in_memory != MAP_IN_MEMORY || GET_MAP_MOVE_BLOCK (map, x, y) == MOVE_ALL)
917	{
918	object *op = inv;
919
920	while (op)
921	{
922	object *tmp = op->below;
923	op->destroy (destroy_inventory);
924	op = tmp;
925	}
926	}
927	else
928	{ /* Put objects in inventory onto this space */
929	object *op = inv;
930
931	while (op)
932	{
933	object *tmp = op->below;
934
935	op->remove ();
936
937	if (QUERY_FLAG (op, FLAG_STARTEQUIP)
938	|| QUERY_FLAG (op, FLAG_NO_DROP) || op->type == RUNE || op->type == TRAP || QUERY_FLAG (op, FLAG_IS_A_TEMPLATE))
939	op->destroy ();
940	else
941	{
942	op->x = x;
943	op->y = y;
944	insert_ob_in_map (op, map, 0, 0); /* Insert in same map as the envir */
945	}
946
947	op = tmp;
948	}
949	}
950	}
951
952	// hack to ensure that freed objects still have a valid map
953	{
954	static maptile *freed_map; // freed objects are moved here to avoid crashes
955
956	if (!freed_map)
957	{
958	freed_map = new maptile;
959
960	freed_map->name = "/internal/freed_objects_map";
961	freed_map->width = 3;
962	freed_map->height = 3;
963
964	freed_map->allocate ();
965	}	1013	}
966		1014
967	map = freed_map;	1015	destroy_inv (!destroy_inventory);
968	x = 1;
969	y = 1;
970	}
971		1016
972	// clear those pointers that likely might have circular references to us	1017	if (is_head ())
973	owner = 0;	1018	if (sound_destroy)
974	enemy = 0;	1019	play_sound (sound_destroy);
975	attacked_by = 0;	1020	else if (flag [FLAG_MONSTER])
		1021	play_sound (sound_find ("monster_destroy")); // quick hack, too lazy to create a generic mechanism
976		1022
977	// only relevant for players(?), but make sure of it anyways	1023	attachable::destroy ();
978	contr = 0;
979
980	/* Remove object from the active list */
981	speed = 0;
982	update_ob_speed (this);
983
984	unlink ();
985
986	mortals.push_back (this);
987	}
988
989	/*
990	* sub_weight() recursively (outwards) subtracts a number from the
991	* weight of an object (and what is carried by it's environment(s)).
992	*/
993	void
994	sub_weight (object *op, signed long weight)
995	{
996	while (op != NULL)
997	{
998	if (op->type == CONTAINER)
999	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1000
1001	op->carrying -= weight;
1002	op = op->env;
1003	}
1004	}	1024	}
1005		1025
1006	/* op->remove ():	1026	/* op->remove ():
1007	* This function removes the object op from the linked list of objects	1027	* This function removes the object op from the linked list of objects
1008	* which it is currently tied to. When this function is done, the	1028	* which it is currently tied to. When this function is done, the
1009	* object will have no environment. If the object previously had an	1029	* object will have no environment. If the object previously had an
1010	* environment, the x and y coordinates will be updated to	1030	* environment, the x and y coordinates will be updated to
1011	* the previous environment.	1031	* the previous environment.
1012	* Beware: This function is called from the editor as well!
1013	*/	1032	*/
1014	void	1033	void
1015	object::remove ()	1034	object::do_remove ()
1016	{	1035	{
1017	object *tmp, *last = 0;	1036	object *tmp, *last = 0;
1018	object *otmp;	1037	object *otmp;
1019		1038
1020	int check_walk_off;	1039	if (flag [FLAG_REMOVED])
1021
1022	if (QUERY_FLAG (this, FLAG_REMOVED))
1023	return;	1040	return;
1024		1041
1025	SET_FLAG (this, FLAG_REMOVED);	1042	INVOKE_OBJECT (REMOVE, this);
		1043
		1044	flag [FLAG_REMOVED] = true;
1026		1045
1027	if (more)	1046	if (more)
1028	more->remove ();	1047	more->remove ();
1029		1048
1030	/*	1049	/*
1031	* In this case, the object to be removed is in someones	1050	* In this case, the object to be removed is in someones
1032	* inventory.	1051	* inventory.
1033	*/	1052	*/
1034	if (env)	1053	if (env)
1035	{	1054	{
		1055	flag [FLAG_REMOVED] = false; // hack around the issue of visible_to checking flag_removed
		1056	if (object *pl = visible_to ())
		1057	esrv_del_item (pl->contr, count);
		1058	flag [FLAG_REMOVED] = true; // hack around the issue of visible_to checking flag_removed
		1059
		1060	adjust_weight (env, -total_weight ());
		1061
		1062	*(above ? &above->below : &env->inv) = below;
		1063
1036	if (nrof)	1064	if (below)
1037	sub_weight (env, weight * nrof);	1065	below->above = above;
1038	else	1066
1039	sub_weight (env, weight + carrying);	1067	/* we set up values so that it could be inserted into
		1068	* the map, but we don't actually do that - it is up
		1069	* to the caller to decide what we want to do.
		1070	*/
		1071	map = env->map;
		1072	x = env->x;
		1073	y = env->y;
		1074	above = 0;
		1075	below = 0;
		1076	env = 0;
1040		1077
1041	/* NO_FIX_PLAYER is set when a great many changes are being	1078	/* NO_FIX_PLAYER is set when a great many changes are being
1042	* made to players inventory. If set, avoiding the call	1079	* made to players inventory. If set, avoiding the call
1043	* to save cpu time.	1080	* to save cpu time.
1044	*/	1081	*/
1045	if ((otmp = in_player ()) && otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))	1082	if ((otmp = in_player ()) && otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1046	fix_player (otmp);	1083	otmp->update_stats ();
1047
1048	if (above != NULL)
1049	above->below = below;
1050	else
1051	env->inv = below;
1052
1053	if (below != NULL)
1054	below->above = above;
1055
1056	/* we set up values so that it could be inserted into
1057	* the map, but we don't actually do that - it is up
1058	* to the caller to decide what we want to do.
1059	*/
1060	x = env->x, y = env->y;
1061	map = env->map;
1062	above = 0, below = 0;
1063	env = 0;
1064	}	1084	}
1065	else if (map)	1085	else if (map)
1066	{	1086	{
1067	/* Re did the following section of code - it looks like it had	1087	map->dirty = true;
1068	* lots of logic for things we no longer care about	1088	mapspace &ms = this->ms ();
		1089
		1090	if (object *pl = ms.player ())
1069	*/	1091	{
		1092	if (type == PLAYER) // this == pl(!)
		1093	{
		1094	// leaving a spot always closes any open container on the ground
		1095	if (container && !container->env)
		1096	// this causes spurious floorbox updates, but it ensures
		1097	// that the CLOSE event is being sent.
		1098	close_container ();
		1099
		1100	--map->players;
		1101	map->touch ();
		1102	}
		1103	else if (pl->container == this)
		1104	{
		1105	// removing a container should close it
		1106	close_container ();
		1107	}
		1108
		1109	esrv_del_item (pl->contr, count);
		1110	}
1070		1111
1071	/* link the object above us */	1112	/* link the object above us */
1072	if (above)	1113	if (above)
1073	above->below = below;	1114	above->below = below;
1074	else	1115	else
1075	SET_MAP_TOP (map, x, y, below); /* we were top, set new top */	1116	ms.top = below; /* we were top, set new top */
1076		1117
1077	/* Relink the object below us, if there is one */	1118	/* Relink the object below us, if there is one */
1078	if (below)	1119	if (below)
1079	below->above = above;	1120	below->above = above;
1080	else	1121	else
…		…
1082	/* Nothing below, which means we need to relink map object for this space	1123	/* Nothing below, which means we need to relink map object for this space
1083	* use translated coordinates in case some oddness with map tiling is	1124	* use translated coordinates in case some oddness with map tiling is
1084	* evident	1125	* evident
1085	*/	1126	*/
1086	if (GET_MAP_OB (map, x, y) != this)	1127	if (GET_MAP_OB (map, x, y) != this)
1087	{
1088	char *dump = dump_object (this);
1089	LOG (llevError,
1090	"remove_ob: GET_MAP_OB does not return object to be removed even though it appears to be on the bottom?\n%s\n", dump);	1128	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 ());
1091	free (dump);
1092	dump = dump_object (GET_MAP_OB (map, x, y));
1093	LOG (llevError, "%s\n", dump);
1094	free (dump);
1095	}
1096		1129
1097	SET_MAP_OB (map, x, y, above); /* goes on above it. */	1130	ms.bot = above; /* goes on above it. */
1098	}	1131	}
1099		1132
1100	above = 0;	1133	above = 0;
1101	below = 0;	1134	below = 0;
1102		1135
1103	if (map->in_memory == MAP_SAVING)	1136	if (map->in_memory == MAP_SAVING)
1104	return;	1137	return;
1105		1138
1106	check_walk_off = !QUERY_FLAG (this, FLAG_NO_APPLY);	1139	int check_walk_off = !flag [FLAG_NO_APPLY];
1107		1140
		1141	if (object *pl = ms.player ())
		1142	{
		1143	if (pl->container == this)
		1144	/* If a container that the player is currently using somehow gets
		1145	* removed (most likely destroyed), update the player view
		1146	* appropriately.
		1147	*/
		1148	pl->close_container ();
		1149
		1150	//TODO: the floorbox prev/next might need updating
		1151	//esrv_del_item (pl->contr, count);
		1152	//TODO: update floorbox to preserve ordering
		1153	if (pl->contr->ns)
		1154	pl->contr->ns->floorbox_update ();
		1155	}
		1156
1108	for (tmp = GET_MAP_OB (map, x, y); tmp; tmp = tmp->above)	1157	for (tmp = ms.bot; tmp; tmp = tmp->above)
1109	{	1158	{
1110	/* No point updating the players look faces if he is the object	1159	/* No point updating the players look faces if he is the object
1111	* being removed.	1160	* being removed.
1112	*/	1161	*/
1113		1162
1114	if (tmp->type == PLAYER && tmp != this)
1115	{
1116	/* If a container that the player is currently using somehow gets
1117	* removed (most likely destroyed), update the player view
1118	* appropriately.
1119	*/
1120	if (tmp->container == this)
1121	{
1122	CLEAR_FLAG (this, FLAG_APPLIED);
1123	tmp->container = 0;
1124	}
1125
1126	tmp->contr->socket->floorbox_update ();
1127	}
1128
1129	/* See if player moving off should effect something */	1163	/* See if object moving off should effect something */
1130	if (check_walk_off	1164	if (check_walk_off
1131	&& ((move_type & tmp->move_off)	1165	&& ((move_type & tmp->move_off)
1132	&& (move_type & ~tmp->move_off & ~tmp->move_block) == 0))	1166	&& (move_type & ~tmp->move_off & ~tmp->move_block) == 0))
1133	{	1167	{
1134	move_apply (tmp, this, 0);	1168	move_apply (tmp, this, 0);
1135		1169
1136	if (destroyed ())	1170	if (destroyed ())
1137	LOG (llevError, "BUG: remove_ob(): name %s, destroyed leaving object\n", tmp->debug_desc ());	1171	LOG (llevError, "BUG: remove_ob(): name %s, destroyed leaving object\n", tmp->debug_desc ());
1138	}	1172	}
1139		1173
1140	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */
1141
1142	if (tmp->above == tmp)
1143	tmp->above = 0;
1144
1145	last = tmp;	1174	last = tmp;
1146	}	1175	}
1147		1176
1148	/* last == NULL of there are no objects on this space */	1177	/* last == NULL if there are no objects on this space */
		1178	//TODO: this makes little sense, why only update the topmost object?
1149	if (!last)	1179	if (!last)
1150	{	1180	map->at (x, y).flags_ = 0;
1151	/* set P_NEED_UPDATE, otherwise update_position will complain. In theory,
1152	* we could preserve the flags (GET_MAP_FLAGS), but update_position figures
1153	* those out anyways, and if there are any flags set right now, they won't
1154	* be correct anyways.
1155	*/
1156	SET_MAP_FLAGS (map, x, y, P_NEED_UPDATE);
1157	update_position (map, x, y);
1158	}
1159	else	1181	else
1160	update_object (last, UP_OBJ_REMOVE);	1182	update_object (last, UP_OBJ_REMOVE);
1161		1183
1162	if (QUERY_FLAG (this, FLAG_BLOCKSVIEW) || glow_radius)	1184	if (flag [FLAG_BLOCKSVIEW] || glow_radius)
1163	update_all_los (map, x, y);	1185	update_all_los (map, x, y);
1164	}	1186	}
1165	}	1187	}
1166		1188
1167	/*	1189	/*
…		…
1176	merge_ob (object *op, object *top)	1198	merge_ob (object *op, object *top)
1177	{	1199	{
1178	if (!op->nrof)	1200	if (!op->nrof)
1179	return 0;	1201	return 0;
1180		1202
1181	if (top == NULL)	1203	if (!top)
1182	for (top = op; top != NULL && top->above != NULL; top = top->above);	1204	for (top = op; top && top->above; top = top->above)
		1205	;
1183		1206
1184	for (; top != NULL; top = top->below)	1207	for (; top; top = top->below)
1185	{
1186	if (top == op)
1187	continue;
1188
1189	if (object::can_merge (op, top))	1208	if (object::can_merge (op, top))
1190	{	1209	{
1191	top->nrof += op->nrof;	1210	top->nrof += op->nrof;
1192		1211
1193	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/	1212	if (object *pl = top->visible_to ())
1194	op->weight = 0; /* Don't want any adjustements now */	1213	esrv_update_item (UPD_NROF, pl, top);
		1214
		1215	op->weight = 0; // cancel the addition above
		1216	op->carrying = 0; // must be 0 already
		1217
1195	op->destroy ();	1218	op->destroy (1);
		1219
1196	return top;	1220	return top;
1197	}	1221	}
1198	}
1199		1222
1200	return 0;	1223	return 0;
1201	}	1224	}
1202		1225
		1226	void
		1227	object::expand_tail ()
		1228	{
		1229	if (more)
		1230	return;
		1231
		1232	object *prev = this;
		1233
		1234	for (archetype *at = (archetype *)arch->more; at; at = (archetype *)at->more)
		1235	{
		1236	object *op = arch_to_object (at);
		1237
		1238	op->name = name;
		1239	op->name_pl = name_pl;
		1240	op->title = title;
		1241
		1242	op->head = this;
		1243	prev->more = op;
		1244
		1245	prev = op;
		1246	}
		1247	}
		1248
1203	/*	1249	/*
1204	* same as insert_ob_in_map except it handle separate coordinates and do a clean	1250	* same as insert_ob_in_map except it handles separate coordinates and does a clean
1205	* job preparing multi-part monsters	1251	* job preparing multi-part monsters.
1206	*/	1252	*/
1207	object *	1253	object *
1208	insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)	1254	insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)
1209	{	1255	{
1210	object *tmp;
1211
1212	if (op->head)
1213	op = op->head;
1214
1215	for (tmp = op; tmp; tmp = tmp->more)	1256	for (object *tmp = op->head_ (); tmp; tmp = tmp->more)
1216	{	1257	{
1217	tmp->x = x + tmp->arch->clone.x;	1258	tmp->x = x + tmp->arch->x;
1218	tmp->y = y + tmp->arch->clone.y;	1259	tmp->y = y + tmp->arch->y;
1219	}	1260	}
1220		1261
1221	return insert_ob_in_map (op, m, originator, flag);	1262	return insert_ob_in_map (op, m, originator, flag);
1222	}	1263	}
1223		1264
…		…
1239	* Return value:	1280	* Return value:
1240	* new object if 'op' was merged with other object	1281	* new object if 'op' was merged with other object
1241	* NULL if 'op' was destroyed	1282	* NULL if 'op' was destroyed
1242	* just 'op' otherwise	1283	* just 'op' otherwise
1243	*/	1284	*/
1244
1245	object *	1285	object *
1246	insert_ob_in_map (object *op, maptile *m, object *originator, int flag)	1286	insert_ob_in_map (object *op, maptile *m, object *originator, int flag)
1247	{	1287	{
1248	object *tmp, *top, *floor = NULL;	1288	assert (!op->flag [FLAG_FREED]);
1249	sint16 x, y;
1250		1289
1251	if (QUERY_FLAG (op, FLAG_FREED))	1290	op->remove ();
1252	{
1253	LOG (llevError, "Trying to insert freed object!\n");
1254	return NULL;
1255	}
1256
1257	if (m == NULL)
1258	{
1259	char *dump = dump_object (op);
1260	LOG (llevError, "Trying to insert in null-map!\n%s\n", dump);
1261	free (dump);
1262	return op;
1263	}
1264
1265	if (out_of_map (m, op->x, op->y))
1266	{
1267	char *dump = dump_object (op);
1268	LOG (llevError, "Trying to insert object outside the map.\n%s\n", dump);
1269	#ifdef MANY_CORES
1270	/* Better to catch this here, as otherwise the next use of this object
1271	* is likely to cause a crash. Better to find out where it is getting
1272	* improperly inserted.
1273	*/
1274	abort ();
1275	#endif
1276	free (dump);
1277	return op;
1278	}
1279
1280	if (!QUERY_FLAG (op, FLAG_REMOVED))
1281	{
1282	char *dump = dump_object (op);
1283	LOG (llevError, "Trying to insert (map) inserted object.\n%s\n", dump);
1284	free (dump);
1285	return op;
1286	}
1287
1288	if (op->more != NULL)
1289	{
1290	/* The part may be on a different map. */
1291
1292	object *more = op->more;
1293
1294	/* We really need the caller to normalize coordinates - if
1295	* we set the map, that doesn't work if the location is within
1296	* a map and this is straddling an edge. So only if coordinate
1297	* is clear wrong do we normalize it.
1298	*/
1299	if (OUT_OF_REAL_MAP (more->map, more->x, more->y))
1300	more->map = get_map_from_coord (m, &more->x, &more->y);
1301	else if (!more->map)
1302	{
1303	/* For backwards compatibility - when not dealing with tiled maps,
1304	* more->map should always point to the parent.
1305	*/
1306	more->map = m;
1307	}
1308
1309	if (insert_ob_in_map (more, more->map, originator, flag) == NULL)
1310	{
1311	if (!op->head)
1312	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");
1313
1314	return NULL;
1315	}
1316	}
1317
1318	CLEAR_FLAG (op, FLAG_REMOVED);
1319		1291
1320	/* Ideally, the caller figures this out. However, it complicates a lot	1292	/* Ideally, the caller figures this out. However, it complicates a lot
1321	* of areas of callers (eg, anything that uses find_free_spot would now	1293	* of areas of callers (eg, anything that uses find_free_spot would now
1322	* need extra work	1294	* need extra work
1323	*/	1295	*/
1324	op->map = get_map_from_coord (m, &op->x, &op->y);	1296	if (!xy_normalise (m, op->x, op->y))
1325	x = op->x;	1297	{
1326	y = op->y;	1298	op->head_ ()->destroy (1);// remove head_ once all tail object destroyers found
		1299	return 0;
		1300	}
		1301
		1302	if (object *more = op->more)
		1303	if (!insert_ob_in_map (more, m, originator, flag))
		1304	return 0;
		1305
		1306	CLEAR_FLAG (op, FLAG_REMOVED);
		1307
		1308	op->map = m;
		1309	mapspace &ms = op->ms ();
1327		1310
1328	/* this has to be done after we translate the coordinates.	1311	/* this has to be done after we translate the coordinates.
1329	*/	1312	*/
1330	if (op->nrof && !(flag & INS_NO_MERGE))	1313	if (op->nrof && !(flag & INS_NO_MERGE))
1331	for (tmp = GET_MAP_OB (op->map, x, y); tmp != NULL; tmp = tmp->above)	1314	for (object *tmp = ms.bot; tmp; tmp = tmp->above)
1332	if (object::can_merge (op, tmp))	1315	if (object::can_merge (op, tmp))
1333	{	1316	{
		1317	// TODO: we atcually want to update tmp, not op,
		1318	// but some caller surely breaks when we return tmp
		1319	// from here :/
1334	op->nrof += tmp->nrof;	1320	op->nrof += tmp->nrof;
1335	tmp->destroy ();	1321	tmp->destroy (1);
1336	}	1322	}
1337		1323
1338	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */	1324	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */
1339	CLEAR_FLAG (op, FLAG_INV_LOCKED);	1325	CLEAR_FLAG (op, FLAG_INV_LOCKED);
1340		1326
…		…
1353	op->below = originator->below;	1339	op->below = originator->below;
1354		1340
1355	if (op->below)	1341	if (op->below)
1356	op->below->above = op;	1342	op->below->above = op;
1357	else	1343	else
1358	SET_MAP_OB (op->map, op->x, op->y, op);	1344	ms.bot = op;
1359		1345
1360	/* since *below* originator, no need to update top */	1346	/* since *below* originator, no need to update top */
1361	originator->below = op;	1347	originator->below = op;
1362	}	1348	}
1363	else	1349	else
1364	{	1350	{
		1351	object *top, *floor = NULL;
		1352
		1353	top = ms.bot;
		1354
1365	/* If there are other objects, then */	1355	/* If there are other objects, then */
1366	if ((!(flag & INS_MAP_LOAD)) && ((top = GET_MAP_OB (op->map, op->x, op->y)) != NULL))	1356	if (top)
1367	{	1357	{
1368	object *last = NULL;	1358	object *last = 0;
1369		1359
1370	/*	1360	/*
1371	* If there are multiple objects on this space, we do some trickier handling.	1361	* If there are multiple objects on this space, we do some trickier handling.
1372	* We've already dealt with merging if appropriate.	1362	* We've already dealt with merging if appropriate.
1373	* Generally, we want to put the new object on top. But if	1363	* Generally, we want to put the new object on top. But if
…		…
1377	* once we get to them. This reduces the need to traverse over all of	1367	* once we get to them. This reduces the need to traverse over all of
1378	* them when adding another one - this saves quite a bit of cpu time	1368	* them when adding another one - this saves quite a bit of cpu time
1379	* when lots of spells are cast in one area. Currently, it is presumed	1369	* when lots of spells are cast in one area. Currently, it is presumed
1380	* that flying non pickable objects are spell objects.	1370	* that flying non pickable objects are spell objects.
1381	*/	1371	*/
1382		1372	for (top = ms.bot; top; top = top->above)
1383	while (top != NULL)
1384	{	1373	{
1385	if (QUERY_FLAG (top, FLAG_IS_FLOOR) || QUERY_FLAG (top, FLAG_OVERLAY_FLOOR))	1374	if (QUERY_FLAG (top, FLAG_IS_FLOOR) || QUERY_FLAG (top, FLAG_OVERLAY_FLOOR))
1386	floor = top;	1375	floor = top;
1387		1376
1388	if (QUERY_FLAG (top, FLAG_NO_PICK) && (top->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (top, FLAG_IS_FLOOR))	1377	if (QUERY_FLAG (top, FLAG_NO_PICK) && (top->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (top, FLAG_IS_FLOOR))
…		…
1391	top = top->below;	1380	top = top->below;
1392	break;	1381	break;
1393	}	1382	}
1394		1383
1395	last = top;	1384	last = top;
1396	top = top->above;
1397	}	1385	}
1398		1386
1399	/* Don't want top to be NULL, so set it to the last valid object */	1387	/* Don't want top to be NULL, so set it to the last valid object */
1400	top = last;	1388	top = last;
1401		1389
…		…
1403	* looks like instead of lots of conditions here.	1391	* looks like instead of lots of conditions here.
1404	* makes things faster, and effectively the same result.	1392	* makes things faster, and effectively the same result.
1405	*/	1393	*/
1406		1394
1407	/* Have object 'fall below' other objects that block view.	1395	/* Have object 'fall below' other objects that block view.
1408	* Unless those objects are exits, type 66	1396	* Unless those objects are exits.
1409	* If INS_ON_TOP is used, don't do this processing	1397	* If INS_ON_TOP is used, don't do this processing
1410	* Need to find the object that in fact blocks view, otherwise	1398	* Need to find the object that in fact blocks view, otherwise
1411	* stacking is a bit odd.	1399	* stacking is a bit odd.
1412	*/	1400	*/
1413	if (!(flag & INS_ON_TOP) &&	1401	if (!(flag & INS_ON_TOP)
1414	(get_map_flags (op->map, NULL, op->x, op->y, NULL, NULL) & P_BLOCKSVIEW) && (op->face && !op->face->visibility))	1402	&& ms.flags () & P_BLOCKSVIEW
		1403	&& (op->face && !faces [op->face].visibility))
1415	{	1404	{
1416	for (last = top; last != floor; last = last->below)	1405	for (last = top; last != floor; last = last->below)
1417	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))	1406	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))
1418	break;	1407	break;
		1408
1419	/* Check to see if we found the object that blocks view,	1409	/* Check to see if we found the object that blocks view,
1420	* and make sure we have a below pointer for it so that	1410	* and make sure we have a below pointer for it so that
1421	* we can get inserted below this one, which requires we	1411	* we can get inserted below this one, which requires we
1422	* set top to the object below us.	1412	* set top to the object below us.
1423	*/	1413	*/
1424	if (last && last->below && last != floor)	1414	if (last && last->below && last != floor)
1425	top = last->below;	1415	top = last->below;
1426	}	1416	}
1427	} /* If objects on this space */	1417	} /* If objects on this space */
1428		1418
1429	if (flag & INS_MAP_LOAD)
1430	top = GET_MAP_TOP (op->map, op->x, op->y);
1431
1432	if (flag & INS_ABOVE_FLOOR_ONLY)	1419	if (flag & INS_ABOVE_FLOOR_ONLY)
1433	top = floor;	1420	top = floor;
1434		1421
1435	/* Top is the object that our object (op) is going to get inserted above.	1422	/* Top is the object that our object (op) is going to get inserted above.
1436	*/	1423	*/
1437		1424
1438	/* First object on this space */	1425	/* First object on this space */
1439	if (!top)	1426	if (!top)
1440	{	1427	{
1441	op->above = GET_MAP_OB (op->map, op->x, op->y);	1428	op->above = ms.bot;
1442		1429
1443	if (op->above)	1430	if (op->above)
1444	op->above->below = op;	1431	op->above->below = op;
1445		1432
1446	op->below = NULL;	1433	op->below = 0;
1447	SET_MAP_OB (op->map, op->x, op->y, op);	1434	ms.bot = op;
1448	}	1435	}
1449	else	1436	else
1450	{ /* get inserted into the stack above top */	1437	{ /* get inserted into the stack above top */
1451	op->above = top->above;	1438	op->above = top->above;
1452		1439
…		…
1455		1442
1456	op->below = top;	1443	op->below = top;
1457	top->above = op;	1444	top->above = op;
1458	}	1445	}
1459		1446
1460	if (op->above == NULL)	1447	if (!op->above)
1461	SET_MAP_TOP (op->map, op->x, op->y, op);	1448	ms.top = op;
1462	} /* else not INS_BELOW_ORIGINATOR */	1449	} /* else not INS_BELOW_ORIGINATOR */
1463		1450
1464	if (op->type == PLAYER)	1451	if (op->type == PLAYER)
		1452	{
1465	op->contr->do_los = 1;	1453	op->contr->do_los = 1;
		1454	++op->map->players;
		1455	op->map->touch ();
		1456	}
1466		1457
1467	/* If we have a floor, we know the player, if any, will be above	1458	op->map->dirty = true;
1468	* it, so save a few ticks and start from there.	1459
1469	*/	1460	if (object *pl = ms.player ())
1470	if (!(flag & INS_MAP_LOAD))	1461	//TODO: the floorbox prev/next might need updating
1471	for (tmp = floor ? floor : GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)	1462	//esrv_send_item (pl, op);
1472	if (tmp->type == PLAYER)	1463	//TODO: update floorbox to preserve ordering
		1464	if (pl->contr->ns)
1473	tmp->contr->socket->floorbox_update ();	1465	pl->contr->ns->floorbox_update ();
1474		1466
1475	/* If this object glows, it may affect lighting conditions that are	1467	/* If this object glows, it may affect lighting conditions that are
1476	* visible to others on this map. But update_all_los is really	1468	* visible to others on this map. But update_all_los is really
1477	* an inefficient way to do this, as it means los for all players	1469	* an inefficient way to do this, as it means los for all players
1478	* on the map will get recalculated. The players could very well	1470	* on the map will get recalculated. The players could very well
1479	* be far away from this change and not affected in any way -	1471	* be far away from this change and not affected in any way -
1480	* this should get redone to only look for players within range,	1472	* this should get redone to only look for players within range,
1481	* or just updating the P_NEED_UPDATE for spaces within this area	1473	* or just updating the P_UPTODATE for spaces within this area
1482	* of effect may be sufficient.	1474	* of effect may be sufficient.
1483	*/	1475	*/
1484	if (MAP_DARKNESS (op->map) && (op->glow_radius != 0))	1476	if (op->map->darkness && (op->glow_radius != 0))
1485	update_all_los (op->map, op->x, op->y);	1477	update_all_los (op->map, op->x, op->y);
1486		1478
1487	/* updates flags (blocked, alive, no magic, etc) for this map space */	1479	/* updates flags (blocked, alive, no magic, etc) for this map space */
1488	update_object (op, UP_OBJ_INSERT);	1480	update_object (op, UP_OBJ_INSERT);
		1481
		1482	INVOKE_OBJECT (INSERT, op);
1489		1483
1490	/* Don't know if moving this to the end will break anything. However,	1484	/* Don't know if moving this to the end will break anything. However,
1491	* we want to have floorbox_update called before calling this.	1485	* we want to have floorbox_update called before calling this.
1492	*	1486	*
1493	* check_move_on() must be after this because code called from	1487	* check_move_on() must be after this because code called from
…		…
1495	* blocked() and wall() work properly), and these flags are updated by	1489	* blocked() and wall() work properly), and these flags are updated by
1496	* update_object().	1490	* update_object().
1497	*/	1491	*/
1498		1492
1499	/* if this is not the head or flag has been passed, don't check walk on status */	1493	/* if this is not the head or flag has been passed, don't check walk on status */
1500	if (!(flag & INS_NO_WALK_ON) && !op->head)	1494	if (!(flag & INS_NO_WALK_ON) && op->head_ () == op)
1501	{	1495	{
1502	if (check_move_on (op, originator))	1496	if (check_move_on (op, originator))
1503	return NULL;	1497	return 0;
1504		1498
1505	/* If we are a multi part object, lets work our way through the check	1499	/* If we are a multi part object, lets work our way through the check
1506	* walk on's.	1500	* walk on's.
1507	*/	1501	*/
1508	for (tmp = op->more; tmp != NULL; tmp = tmp->more)	1502	for (object *tmp = op->more; tmp; tmp = tmp->more)
1509	if (check_move_on (tmp, originator))	1503	if (check_move_on (tmp, originator))
1510	return NULL;	1504	return 0;
1511	}	1505	}
1512		1506
1513	return op;	1507	return op;
1514	}	1508	}
1515		1509
1516	/* this function inserts an object in the map, but if it	1510	/* this function inserts an object in the map, but if it
1517	* finds an object of its own type, it'll remove that one first.	1511	* finds an object of its own type, it'll remove that one first.
1518	* op is the object to insert it under: supplies x and the map.	1512	* op is the object to insert it under: supplies x and the map.
1519	*/	1513	*/
1520	void	1514	void
1521	replace_insert_ob_in_map (const char *arch_string, object *op)	1515	replace_insert_ob_in_map (const char *arch_string, object *op)
1522	{	1516	{
1523	object *
1524	tmp;
1525	object *
1526	tmp1;
1527
1528	/* first search for itself and remove any old instances */	1517	/* first search for itself and remove any old instances */
1529		1518
1530	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)	1519	for (object *tmp = op->ms ().bot; tmp; tmp = tmp->above)
1531	if (!strcmp (tmp->arch->name, arch_string)) /* same archetype */	1520	if (!strcmp (tmp->arch->archname, arch_string)) /* same archetype */
1532	tmp->destroy ();	1521	tmp->destroy (1);
1533		1522
1534	tmp1 = arch_to_object (archetype::find (arch_string));	1523	object *tmp = arch_to_object (archetype::find (arch_string));
1535		1524
1536	tmp1->x = op->x;	1525	tmp->x = op->x;
1537	tmp1->y = op->y;	1526	tmp->y = op->y;
		1527
1538	insert_ob_in_map (tmp1, op->map, op, 0);	1528	insert_ob_in_map (tmp, op->map, op, 0);
1539	}	1529	}
1540
1541	/*
1542	* get_split_ob(ob,nr) splits up ob into two parts. The part which
1543	* is returned contains nr objects, and the remaining parts contains
1544	* the rest (or is removed and freed if that number is 0).
1545	* On failure, NULL is returned, and the reason put into the
1546	* global static errmsg array.
1547	*/
1548		1530
1549	object *	1531	object *
1550	get_split_ob (object *orig_ob, uint32 nr)	1532	object::insert_at (object *where, object *originator, int flags)
1551	{	1533	{
1552	object *newob;	1534	if (where->env)
1553	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);	1535	return where->env->insert (this);
1554		1536	else
1555	if (orig_ob->nrof < nr)	1537	return where->map->insert (this, where->x, where->y, originator, flags);
1556	{
1557	sprintf (errmsg, "There are only %d %ss.", orig_ob->nrof ? orig_ob->nrof : 1, &orig_ob->name);
1558	return NULL;
1559	}
1560
1561	newob = object_create_clone (orig_ob);
1562
1563	if ((orig_ob->nrof -= nr) < 1)
1564	orig_ob->destroy (1);
1565	else if (!is_removed)
1566	{
1567	if (orig_ob->env != NULL)
1568	sub_weight (orig_ob->env, orig_ob->weight * nr);
1569	if (orig_ob->env == NULL && orig_ob->map->in_memory != MAP_IN_MEMORY)
1570	{
1571	strcpy (errmsg, "Tried to split object whose map is not in memory.");
1572	LOG (llevDebug, "Error, Tried to split object whose map is not in memory.\n");
1573	return NULL;
1574	}
1575	}
1576
1577	newob->nrof = nr;
1578
1579	return newob;
1580	}	1538	}
1581		1539
1582	/*	1540	/*
1583	* decrease_ob_nr(object, number) decreases a specified number from	1541	* decrease(object, number) decreases a specified number from
1584	* the amount of an object. If the amount reaches 0, the object	1542	* the amount of an object. If the amount reaches 0, the object
1585	* is subsequently removed and freed.	1543	* is subsequently removed and freed.
1586	*	1544	*
1587	* Return value: 'op' if something is left, NULL if the amount reached 0	1545	* Return value: 'op' if something is left, NULL if the amount reached 0
1588	*/	1546	*/
		1547	bool
		1548	object::decrease (sint32 nr)
		1549	{
		1550	if (!nr)
		1551	return true;
1589		1552
		1553	nr = min (nr, nrof);
		1554
		1555	nrof -= nr;
		1556
		1557	if (nrof)
		1558	{
		1559	adjust_weight (env, -weight * nr); // carrying == 0
		1560
		1561	if (object *pl = visible_to ())
		1562	esrv_update_item (UPD_NROF, pl, this);
		1563
		1564	return true;
		1565	}
		1566	else
		1567	{
		1568	destroy (1);
		1569	return false;
		1570	}
		1571	}
		1572
		1573	/*
		1574	* split(ob,nr) splits up ob into two parts. The part which
		1575	* is returned contains nr objects, and the remaining parts contains
		1576	* the rest (or is removed and returned if that number is 0).
		1577	* On failure, NULL is returned.
		1578	*/
1590	object *	1579	object *
1591	decrease_ob_nr (object *op, uint32 i)	1580	object::split (sint32 nr)
1592	{	1581	{
1593	object *tmp;	1582	int have = number_of ();
1594	player *pl;
1595		1583
1596	if (i == 0) /* objects with op->nrof require this check */	1584	if (have < nr)
1597	return op;	1585	return 0;
1598		1586	else if (have == nr)
1599	if (i > op->nrof)
1600	i = op->nrof;
1601
1602	if (QUERY_FLAG (op, FLAG_REMOVED))
1603	op->nrof -= i;
1604	else if (op->env)
1605	{	1587	{
1606	/* is this object in the players inventory, or sub container
1607	* therein?
1608	*/
1609	tmp = op->in_player ();
1610	/* nope. Is this a container the player has opened?
1611	* If so, set tmp to that player.
1612	* IMO, searching through all the players will mostly
1613	* likely be quicker than following op->env to the map,
1614	* and then searching the map for a player.
1615	*/
1616	if (!tmp)
1617	{
1618	for (pl = first_player; pl; pl = pl->next)
1619	if (pl->ob->container == op->env)
1620	{
1621	tmp = pl->ob;
1622	break;
1623	}
1624	}
1625
1626	if (i < op->nrof)
1627	{
1628	sub_weight (op->env, op->weight * i);
1629	op->nrof -= i;
1630	if (tmp)
1631	esrv_send_item (tmp, op);
1632	}
1633	else
1634	{
1635	op->remove ();	1588	remove ();
1636	op->nrof = 0;	1589	return this;
1637	if (tmp)
1638	esrv_del_item (tmp->contr, op->count);
1639	}
1640	}	1590	}
1641	else	1591	else
1642	{	1592	{
1643	object *above = op->above;	1593	decrease (nr);
1644		1594
1645	if (i < op->nrof)	1595	object *op = deep_clone ();
1646	op->nrof -= i;	1596	op->nrof = nr;
1647	else
1648	{
1649	op->remove ();
1650	op->nrof = 0;
1651	}
1652
1653	/* Since we just removed op, op->above is null */
1654	for (tmp = above; tmp; tmp = tmp->above)
1655	if (tmp->type == PLAYER)
1656	{
1657	if (op->nrof)
1658	esrv_send_item (tmp, op);
1659	else
1660	esrv_del_item (tmp->contr, op->count);
1661	}
1662	}
1663
1664	if (op->nrof)
1665	return op;	1597	return op;
1666	else
1667	{
1668	op->destroy ();
1669	return 0;
1670	}
1671	}
1672
1673	/*
1674	* add_weight(object, weight) adds the specified weight to an object,
1675	* and also updates how much the environment(s) is/are carrying.
1676	*/
1677
1678	void
1679	add_weight (object *op, signed long weight)
1680	{
1681	while (op != NULL)
1682	{
1683	if (op->type == CONTAINER)
1684	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1685
1686	op->carrying += weight;
1687	op = op->env;
1688	}	1598	}
1689	}	1599	}
1690		1600
1691	object *	1601	object *
1692	insert_ob_in_ob (object *op, object *where)	1602	insert_ob_in_ob (object *op, object *where)
…		…
1697	LOG (llevError, "Trying to put object in NULL.\n%s\n", dump);	1607	LOG (llevError, "Trying to put object in NULL.\n%s\n", dump);
1698	free (dump);	1608	free (dump);
1699	return op;	1609	return op;
1700	}	1610	}
1701		1611
1702	if (where->head)	1612	if (where->head_ () != where)
1703	{	1613	{
1704	LOG (llevDebug, "Warning: Tried to insert object into wrong part of multipart object.\n");	1614	LOG (llevError | logBacktrace, "Warning: Tried to insert object into wrong part of multipart object.\n");
1705	where = where->head;	1615	where = where->head;
1706	}	1616	}
1707		1617
1708	return where->insert (op);	1618	return where->insert (op);
1709	}	1619	}
…		…
1714	* inside the object environment.	1624	* inside the object environment.
1715	*	1625	*
1716	* The function returns now pointer to inserted item, and return value can	1626	* The function returns now pointer to inserted item, and return value can
1717	* be != op, if items are merged. -Tero	1627	* be != op, if items are merged. -Tero
1718	*/	1628	*/
1719
1720	object *	1629	object *
1721	object::insert (object *op)	1630	object::insert (object *op)
1722	{	1631	{
1723	object *tmp, *otmp;
1724
1725	if (!QUERY_FLAG (op, FLAG_REMOVED))
1726	op->remove ();
1727
1728	if (op->more)	1632	if (op->more)
1729	{	1633	{
1730	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);	1634	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);
1731	return op;	1635	return op;
1732	}	1636	}
1733		1637
1734	CLEAR_FLAG (op, FLAG_OBJ_ORIGINAL);	1638	op->remove ();
1735	CLEAR_FLAG (op, FLAG_REMOVED);	1639
		1640	op->flag [FLAG_OBJ_ORIGINAL] = 0;
		1641
1736	if (op->nrof)	1642	if (op->nrof)
1737	{
1738	for (tmp = inv; tmp != NULL; tmp = tmp->below)	1643	for (object *tmp = inv; tmp; tmp = tmp->below)
1739	if (object::can_merge (tmp, op))	1644	if (object::can_merge (tmp, op))
1740	{	1645	{
1741	/* return the original object and remove inserted object	1646	/* return the original object and remove inserted object
1742	(client needs the original object) */	1647	(client needs the original object) */
1743	tmp->nrof += op->nrof;	1648	tmp->nrof += op->nrof;
1744	/* Weight handling gets pretty funky. Since we are adding to	1649
1745	* tmp->nrof, we need to increase the weight.	1650	if (object *pl = tmp->visible_to ())
1746	*/	1651	esrv_update_item (UPD_NROF, pl, tmp);
		1652
1747	add_weight (this, op->weight * op->nrof);	1653	adjust_weight (this, op->total_weight ());
1748	SET_FLAG (op, FLAG_REMOVED);	1654
1749	op->destroy (); /* free the inserted object */	1655	op->destroy (1);
1750	op = tmp;	1656	op = tmp;
1751	op->remove (); /* and fix old object's links */	1657	goto inserted;
1752	CLEAR_FLAG (op, FLAG_REMOVED);
1753	break;
1754	}	1658	}
1755		1659
1756	/* I assume combined objects have no inventory	1660	op->owner = 0; // it's his/hers now. period.
1757	* We add the weight - this object could have just been removed
1758	* (if it was possible to merge). calling remove_ob will subtract
1759	* the weight, so we need to add it in again, since we actually do
1760	* the linking below
1761	*/
1762	add_weight (this, op->weight * op->nrof);
1763	}
1764	else
1765	add_weight (this, (op->weight + op->carrying));
1766
1767	otmp = this->in_player ();
1768	if (otmp && otmp->contr)
1769	if (!QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1770	fix_player (otmp);
1771
1772	op->map = 0;	1661	op->map = 0;
1773	op->env = this;	1662	op->x = 0;
		1663	op->y = 0;
		1664
1774	op->above = 0;	1665	op->above = 0;
1775	op->below = 0;	1666	op->below = inv;
1776	op->x = 0, op->y = 0;	1667	op->env = this;
1777		1668
		1669	if (inv)
		1670	inv->above = op;
		1671
		1672	inv = op;
		1673
		1674	op->flag [FLAG_REMOVED] = 0;
		1675
		1676	if (object *pl = op->visible_to ())
		1677	esrv_send_item (pl, op);
		1678
		1679	adjust_weight (this, op->total_weight ());
		1680
		1681	inserted:
1778	/* reset the light list and los of the players on the map */	1682	/* reset the light list and los of the players on the map */
1779	if ((op->glow_radius != 0) && map)	1683	if (op->glow_radius && map && map->darkness)
1780	{
1781	#ifdef DEBUG_LIGHTS
1782	LOG (llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n", op->name);
1783	#endif /* DEBUG_LIGHTS */
1784	if (MAP_DARKNESS (map))
1785	update_all_los (map, x, y);	1684	update_all_los (map, x, y);
1786	}
1787		1685
1788	/* Client has no idea of ordering so lets not bother ordering it here.	1686	// if this is a player's inventory, update stats
1789	* It sure simplifies this function...	1687	if (type == PLAYER && !flag [FLAG_NO_FIX_PLAYER])
1790	*/	1688	update_stats ();
1791	if (!inv)	1689
1792	inv = op;	1690	INVOKE_OBJECT (INSERT, this);
1793	else
1794	{
1795	op->below = inv;
1796	op->below->above = op;
1797	inv = op;
1798	}
1799		1691
1800	return op;	1692	return op;
1801	}	1693	}
1802		1694
1803	/*	1695	/*
…		…
1818	*	1710	*
1819	* MSW 2001-07-08: Check all objects on space, not just those below	1711	* MSW 2001-07-08: Check all objects on space, not just those below
1820	* object being inserted. insert_ob_in_map may not put new objects	1712	* object being inserted. insert_ob_in_map may not put new objects
1821	* on top.	1713	* on top.
1822	*/	1714	*/
1823
1824	int	1715	int
1825	check_move_on (object *op, object *originator)	1716	check_move_on (object *op, object *originator)
1826	{	1717	{
1827	object *tmp;	1718	object *tmp;
1828	maptile *m = op->map;	1719	maptile *m = op->map;
…		…
1855		1746
1856	/* The objects have to be checked from top to bottom.	1747	/* The objects have to be checked from top to bottom.
1857	* Hence, we first go to the top:	1748	* Hence, we first go to the top:
1858	*/	1749	*/
1859		1750
1860	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL && tmp->above != NULL; tmp = tmp->above)	1751	for (tmp = op->ms ().bot; tmp && tmp->above; tmp = tmp->above)
1861	{	1752	{
1862	/* Trim the search when we find the first other spell effect	1753	/* Trim the search when we find the first other spell effect
1863	* this helps performance so that if a space has 50 spell objects,	1754	* this helps performance so that if a space has 50 spell objects,
1864	* we don't need to check all of them.	1755	* we don't need to check all of them.
1865	*/	1756	*/
…		…
1883	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||	1774	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||
1884	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))	1775	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))
1885	{	1776	{
1886		1777
1887	float	1778	float
1888	diff = tmp->move_slow_penalty * FABS (op->speed);	1779	diff = tmp->move_slow_penalty * fabs (op->speed);
1889		1780
1890	if (op->type == PLAYER)	1781	if (op->type == PLAYER)
1891	if ((QUERY_FLAG (tmp, FLAG_IS_HILLY) && find_skill_by_number (op, SK_CLIMBING)) ||	1782	if ((QUERY_FLAG (tmp, FLAG_IS_HILLY) && find_skill_by_number (op, SK_CLIMBING)) ||
1892	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))	1783	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))
1893	diff /= 4.0;	1784	diff /= 4.0;
…		…
1920	/*	1811	/*
1921	* present_arch(arch, map, x, y) searches for any objects with	1812	* present_arch(arch, map, x, y) searches for any objects with
1922	* a matching archetype at the given map and coordinates.	1813	* a matching archetype at the given map and coordinates.
1923	* The first matching object is returned, or NULL if none.	1814	* The first matching object is returned, or NULL if none.
1924	*/	1815	*/
1925
1926	object *	1816	object *
1927	present_arch (const archetype *at, maptile *m, int x, int y)	1817	present_arch (const archetype *at, maptile *m, int x, int y)
1928	{	1818	{
1929	object *
1930	tmp;
1931
1932	if (m == NULL || out_of_map (m, x, y))	1819	if (!m || out_of_map (m, x, y))
1933	{	1820	{
1934	LOG (llevError, "Present_arch called outside map.\n");	1821	LOG (llevError, "Present_arch called outside map.\n");
1935	return NULL;	1822	return NULL;
1936	}	1823	}
1937	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)	1824
1938	if (tmp->arch == at)	1825	for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)
		1826	if (tmp->arch->archname == at->archname)
1939	return tmp;	1827	return tmp;
		1828
1940	return NULL;	1829	return NULL;
1941	}	1830	}
1942		1831
1943	/*	1832	/*
1944	* present(type, map, x, y) searches for any objects with	1833	* present(type, map, x, y) searches for any objects with
1945	* a matching type variable at the given map and coordinates.	1834	* a matching type variable at the given map and coordinates.
1946	* The first matching object is returned, or NULL if none.	1835	* The first matching object is returned, or NULL if none.
1947	*/	1836	*/
1948
1949	object *	1837	object *
1950	present (unsigned char type, maptile *m, int x, int y)	1838	present (unsigned char type, maptile *m, int x, int y)
1951	{	1839	{
1952	object *
1953	tmp;
1954
1955	if (out_of_map (m, x, y))	1840	if (out_of_map (m, x, y))
1956	{	1841	{
1957	LOG (llevError, "Present called outside map.\n");	1842	LOG (llevError, "Present called outside map.\n");
1958	return NULL;	1843	return NULL;
1959	}	1844	}
1960	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)	1845
		1846	for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)
1961	if (tmp->type == type)	1847	if (tmp->type == type)
1962	return tmp;	1848	return tmp;
		1849
1963	return NULL;	1850	return NULL;
1964	}	1851	}
1965		1852
1966	/*	1853	/*
1967	* present_in_ob(type, object) searches for any objects with	1854	* present_in_ob(type, object) searches for any objects with
1968	* a matching type variable in the inventory of the given object.	1855	* a matching type variable in the inventory of the given object.
1969	* The first matching object is returned, or NULL if none.	1856	* The first matching object is returned, or NULL if none.
1970	*/	1857	*/
1971
1972	object *	1858	object *
1973	present_in_ob (unsigned char type, const object *op)	1859	present_in_ob (unsigned char type, const object *op)
1974	{	1860	{
1975	object *
1976	tmp;
1977
1978	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1861	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
1979	if (tmp->type == type)	1862	if (tmp->type == type)
1980	return tmp;	1863	return tmp;
		1864
1981	return NULL;	1865	return NULL;
1982	}	1866	}
1983		1867
1984	/*	1868	/*
1985	* present_in_ob (type, str, object) searches for any objects with	1869	* present_in_ob (type, str, object) searches for any objects with
…		…
1993	* str is the string to match against. Note that we match against	1877	* str is the string to match against. Note that we match against
1994	* the object name, not the archetype name. this is so that the	1878	* the object name, not the archetype name. this is so that the
1995	* spell code can use one object type (force), but change it's name	1879	* spell code can use one object type (force), but change it's name
1996	* to be unique.	1880	* to be unique.
1997	*/	1881	*/
1998
1999	object *	1882	object *
2000	present_in_ob_by_name (int type, const char *str, const object *op)	1883	present_in_ob_by_name (int type, const char *str, const object *op)
2001	{	1884	{
2002	object *
2003	tmp;
2004
2005	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1885	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2006	{
2007	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))	1886	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))
2008	return tmp;	1887	return tmp;
2009	}	1888
2010	return NULL;	1889	return 0;
2011	}	1890	}
2012		1891
2013	/*	1892	/*
2014	* present_arch_in_ob(archetype, object) searches for any objects with	1893	* present_arch_in_ob(archetype, object) searches for any objects with
2015	* a matching archetype in the inventory of the given object.	1894	* a matching archetype in the inventory of the given object.
2016	* The first matching object is returned, or NULL if none.	1895	* The first matching object is returned, or NULL if none.
2017	*/	1896	*/
2018
2019	object *	1897	object *
2020	present_arch_in_ob (const archetype *at, const object *op)	1898	present_arch_in_ob (const archetype *at, const object *op)
2021	{	1899	{
2022	object *
2023	tmp;
2024
2025	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1900	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2026	if (tmp->arch == at)	1901	if (tmp->arch->archname == at->archname)
2027	return tmp;	1902	return tmp;
		1903
2028	return NULL;	1904	return NULL;
2029	}	1905	}
2030		1906
2031	/*	1907	/*
2032	* activate recursively a flag on an object inventory	1908	* activate recursively a flag on an object inventory
2033	*/	1909	*/
2034	void	1910	void
2035	flag_inv (object *op, int flag)	1911	flag_inv (object *op, int flag)
2036	{	1912	{
2037	object *
2038	tmp;
2039
2040	if (op->inv)
2041	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1913	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2042	{	1914	{
2043	SET_FLAG (tmp, flag);	1915	SET_FLAG (tmp, flag);
2044	flag_inv (tmp, flag);	1916	flag_inv (tmp, flag);
2045	}	1917	}
2046	} /*	1918	}
		1919
		1920	/*
2047	* desactivate recursively a flag on an object inventory	1921	* deactivate recursively a flag on an object inventory
2048	*/	1922	*/
2049	void	1923	void
2050	unflag_inv (object *op, int flag)	1924	unflag_inv (object *op, int flag)
2051	{	1925	{
2052	object *
2053	tmp;
2054
2055	if (op->inv)
2056	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1926	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2057	{	1927	{
2058	CLEAR_FLAG (tmp, flag);	1928	CLEAR_FLAG (tmp, flag);
2059	unflag_inv (tmp, flag);	1929	unflag_inv (tmp, flag);
2060	}	1930	}
2061	}
2062
2063	/*
2064	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in
2065	* all it's inventory (recursively).
2066	* If checksums are used, a player will get set_cheat called for
2067	* him/her-self and all object carried by a call to this function.
2068	*/
2069
2070	void
2071	set_cheat (object *op)
2072	{
2073	SET_FLAG (op, FLAG_WAS_WIZ);
2074	flag_inv (op, FLAG_WAS_WIZ);
2075	}	1931	}
2076		1932
2077	/*	1933	/*
2078	* find_free_spot(object, map, x, y, start, stop) will search for	1934	* find_free_spot(object, map, x, y, start, stop) will search for
2079	* a spot at the given map and coordinates which will be able to contain	1935	* a spot at the given map and coordinates which will be able to contain
…		…
2081	* to search (see the freearr_x/y[] definition).	1937	* to search (see the freearr_x/y[] definition).
2082	* It returns a random choice among the alternatives found.	1938	* It returns a random choice among the alternatives found.
2083	* start and stop are where to start relative to the free_arr array (1,9	1939	* start and stop are where to start relative to the free_arr array (1,9
2084	* does all 4 immediate directions). This returns the index into the	1940	* does all 4 immediate directions). This returns the index into the
2085	* array of the free spot, -1 if no spot available (dir 0 = x,y)	1941	* array of the free spot, -1 if no spot available (dir 0 = x,y)
2086	* Note - this only checks to see if there is space for the head of the
2087	* object - if it is a multispace object, this should be called for all
2088	* pieces.
2089	* Note2: This function does correctly handle tiled maps, but does not	1942	* Note: This function does correctly handle tiled maps, but does not
2090	* inform the caller. However, insert_ob_in_map will update as	1943	* inform the caller. However, insert_ob_in_map will update as
2091	* necessary, so the caller shouldn't need to do any special work.	1944	* necessary, so the caller shouldn't need to do any special work.
2092	* Note - updated to take an object instead of archetype - this is necessary	1945	* Note - updated to take an object instead of archetype - this is necessary
2093	* because arch_blocked (now ob_blocked) needs to know the movement type	1946	* because arch_blocked (now ob_blocked) needs to know the movement type
2094	* to know if the space in question will block the object. We can't use	1947	* to know if the space in question will block the object. We can't use
2095	* the archetype because that isn't correct if the monster has been	1948	* the archetype because that isn't correct if the monster has been
2096	* customized, changed states, etc.	1949	* customized, changed states, etc.
2097	*/	1950	*/
2098
2099	int	1951	int
2100	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)	1952	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)
2101	{	1953	{
2102	int
2103	i,
2104	index = 0, flag;
2105	static int
2106	altern[SIZEOFFREE];	1954	int altern[SIZEOFFREE];
		1955	int index = 0, flag;
2107		1956
2108	for (i = start; i < stop; i++)	1957	for (int i = start; i < stop; i++)
2109	{	1958	{
2110	flag = ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]);	1959	mapxy pos (m, x, y); pos.move (i);
2111	if (!flag)	1960
		1961	if (!pos.normalise ())
		1962	continue;
		1963
		1964	mapspace &ms = *pos;
		1965
		1966	if (ms.flags () & P_IS_ALIVE)
		1967	continue;
		1968
		1969	/* However, often
		1970	* ob doesn't have any move type (when used to place exits)
		1971	* so the AND operation in OB_TYPE_MOVE_BLOCK doesn't work.
		1972	*/
		1973	if (ob && ob->move_type == 0 && ms.move_block != MOVE_ALL)
		1974	{
2112	altern[index++] = i;	1975	altern [index++] = i;
		1976	continue;
		1977	}
2113		1978
2114	/* Basically, if we find a wall on a space, we cut down the search size.	1979	/* Basically, if we find a wall on a space, we cut down the search size.
2115	* In this way, we won't return spaces that are on another side of a wall.	1980	* In this way, we won't return spaces that are on another side of a wall.
2116	* This mostly work, but it cuts down the search size in all directions -	1981	* This mostly work, but it cuts down the search size in all directions -
2117	* if the space being examined only has a wall to the north and empty	1982	* if the space being examined only has a wall to the north and empty
2118	* spaces in all the other directions, this will reduce the search space	1983	* spaces in all the other directions, this will reduce the search space
2119	* to only the spaces immediately surrounding the target area, and	1984	* to only the spaces immediately surrounding the target area, and
2120	* won't look 2 spaces south of the target space.	1985	* won't look 2 spaces south of the target space.
2121	*/	1986	*/
2122	else if ((flag & P_NO_PASS) && maxfree[i] < stop)	1987	if (ms.move_block == MOVE_ALL && maxfree[i] < stop)
		1988	{
2123	stop = maxfree[i];	1989	stop = maxfree[i];
		1990	continue;
		1991	}
		1992
		1993	/* Note it is intentional that we check ob - the movement type of the
		1994	* head of the object should correspond for the entire object.
		1995	*/
		1996	if (OB_TYPE_MOVE_BLOCK (ob, ms.move_block))
		1997	continue;
		1998
		1999	if (ob->blocked (m, pos.x, pos.y))
		2000	continue;
		2001
		2002	altern [index++] = i;
2124	}	2003	}
2125		2004
2126	if (!index)	2005	if (!index)
2127	return -1;	2006	return -1;
2128		2007
2129	return altern[RANDOM () % index];	2008	return altern [rndm (index)];
2130	}	2009	}
2131		2010
2132	/*	2011	/*
2133	* find_first_free_spot(archetype, maptile, x, y) works like	2012	* find_first_free_spot(archetype, maptile, x, y) works like
2134	* find_free_spot(), but it will search max number of squares.	2013	* find_free_spot(), but it will search max number of squares.
2135	* But it will return the first available spot, not a random choice.	2014	* But it will return the first available spot, not a random choice.
2136	* Changed 0.93.2: Have it return -1 if there is no free spot available.	2015	* Changed 0.93.2: Have it return -1 if there is no free spot available.
2137	*/	2016	*/
2138
2139	int	2017	int
2140	find_first_free_spot (const object *ob, maptile *m, int x, int y)	2018	find_first_free_spot (const object *ob, maptile *m, int x, int y)
2141	{	2019	{
2142	int
2143	i;
2144
2145	for (i = 0; i < SIZEOFFREE; i++)	2020	for (int i = 0; i < SIZEOFFREE; i++)
2146	{
2147	if (!ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]))	2021	if (!ob->blocked (m, x + freearr_x[i], y + freearr_y[i]))
2148	return i;	2022	return i;
2149	}	2023
2150	return -1;	2024	return -1;
2151	}	2025	}
2152		2026
2153	/*	2027	/*
2154	* The function permute(arr, begin, end) randomly reorders the array	2028	* The function permute(arr, begin, end) randomly reorders the array
2155	* arr[begin..end-1].	2029	* arr[begin..end-1].
		2030	* now uses a fisher-yates shuffle, old permute was broken
2156	*/	2031	*/
2157	static void	2032	static void
2158	permute (int *arr, int begin, int end)	2033	permute (int *arr, int begin, int end)
2159	{	2034	{
2160	int	2035	arr += begin;
2161	i,
2162	j,
2163	tmp,
2164	len;
2165
2166	len = end - begin;	2036	end -= begin;
2167	for (i = begin; i < end; i++)
2168	{
2169	j = begin + RANDOM () % len;
2170		2037
2171	tmp = arr[i];	2038	while (--end)
2172	arr[i] = arr[j];	2039	swap (arr [end], arr [rndm (end + 1)]);
2173	arr[j] = tmp;
2174	}
2175	}	2040	}
2176		2041
2177	/* new function to make monster searching more efficient, and effective!	2042	/* new function to make monster searching more efficient, and effective!
2178	* This basically returns a randomized array (in the passed pointer) of	2043	* This basically returns a randomized array (in the passed pointer) of
2179	* the spaces to find monsters. In this way, it won't always look for	2044	* the spaces to find monsters. In this way, it won't always look for
…		…
2182	* the 3x3 area will be searched, just not in a predictable order.	2047	* the 3x3 area will be searched, just not in a predictable order.
2183	*/	2048	*/
2184	void	2049	void
2185	get_search_arr (int *search_arr)	2050	get_search_arr (int *search_arr)
2186	{	2051	{
2187	int	2052	int i;
2188	i;
2189		2053
2190	for (i = 0; i < SIZEOFFREE; i++)	2054	for (i = 0; i < SIZEOFFREE; i++)
2191	{
2192	search_arr[i] = i;	2055	search_arr[i] = i;
2193	}
2194		2056
2195	permute (search_arr, 1, SIZEOFFREE1 + 1);	2057	permute (search_arr, 1, SIZEOFFREE1 + 1);
2196	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);	2058	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);
2197	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);	2059	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);
2198	}	2060	}
…		…
2207	* Perhaps incorrectly, but I'm making the assumption that exclude	2069	* Perhaps incorrectly, but I'm making the assumption that exclude
2208	* is actually want is going to try and move there. We need this info	2070	* is actually want is going to try and move there. We need this info
2209	* because we have to know what movement the thing looking to move	2071	* because we have to know what movement the thing looking to move
2210	* there is capable of.	2072	* there is capable of.
2211	*/	2073	*/
2212
2213	int	2074	int
2214	find_dir (maptile *m, int x, int y, object *exclude)	2075	find_dir (maptile *m, int x, int y, object *exclude)
2215	{	2076	{
2216	int
2217	i,
2218	max = SIZEOFFREE, mflags;	2077	int i, max = SIZEOFFREE, mflags;
2219		2078
2220	sint16 nx, ny;	2079	sint16 nx, ny;
2221	object *	2080	object *tmp;
2222	tmp;
2223	maptile *	2081	maptile *mp;
2224	mp;
2225		2082
2226	MoveType blocked, move_type;	2083	MoveType blocked, move_type;
2227		2084
2228	if (exclude && exclude->head)	2085	if (exclude && exclude->head_ () != exclude)
2229	{	2086	{
2230	exclude = exclude->head;	2087	exclude = exclude->head;
2231	move_type = exclude->move_type;	2088	move_type = exclude->move_type;
2232	}	2089	}
2233	else	2090	else
…		…
2241	mp = m;	2098	mp = m;
2242	nx = x + freearr_x[i];	2099	nx = x + freearr_x[i];
2243	ny = y + freearr_y[i];	2100	ny = y + freearr_y[i];
2244		2101
2245	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);	2102	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);
		2103
2246	if (mflags & P_OUT_OF_MAP)	2104	if (mflags & P_OUT_OF_MAP)
2247	{
2248	max = maxfree[i];	2105	max = maxfree[i];
2249	}
2250	else	2106	else
2251	{	2107	{
2252	blocked = GET_MAP_MOVE_BLOCK (mp, nx, ny);	2108	mapspace &ms = mp->at (nx, ny);
		2109
		2110	blocked = ms.move_block;
2253		2111
2254	if ((move_type & blocked) == move_type)	2112	if ((move_type & blocked) == move_type)
2255	{
2256	max = maxfree[i];	2113	max = maxfree[i];
2257	}
2258	else if (mflags & P_IS_ALIVE)	2114	else if (mflags & P_IS_ALIVE)
2259	{	2115	{
2260	for (tmp = GET_MAP_OB (mp, nx, ny); tmp != NULL; tmp = tmp->above)	2116	for (tmp = ms.bot; tmp; tmp = tmp->above)
2261	{	2117	if ((tmp->flag [FLAG_MONSTER] || tmp->type == PLAYER)
2262	if ((QUERY_FLAG (tmp, FLAG_MONSTER) || tmp->type == PLAYER) && (tmp != exclude || (tmp->head && tmp->head != exclude)))	2118	&& (tmp != exclude || (tmp->head_ () != tmp && tmp->head_ () != exclude)))
2263	{
2264	break;	2119	break;
2265	}	2120
2266	}
2267	if (tmp)	2121	if (tmp)
2268	{
2269	return freedir[i];	2122	return freedir[i];
2270	}
2271	}	2123	}
2272	}	2124	}
2273	}	2125	}
		2126
2274	return 0;	2127	return 0;
2275	}	2128	}
2276		2129
2277	/*	2130	/*
2278	* distance(object 1, object 2) will return the square of the	2131	* distance(object 1, object 2) will return the square of the
2279	* distance between the two given objects.	2132	* distance between the two given objects.
2280	*/	2133	*/
2281
2282	int	2134	int
2283	distance (const object *ob1, const object *ob2)	2135	distance (const object *ob1, const object *ob2)
2284	{	2136	{
2285	int
2286	i;
2287
2288	i = (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);	2137	return (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);
2289	return i;
2290	}	2138	}
2291		2139
2292	/*	2140	/*
2293	* find_dir_2(delta-x,delta-y) will return a direction in which	2141	* find_dir_2(delta-x,delta-y) will return a direction in which
2294	* an object which has subtracted the x and y coordinates of another	2142	* an object which has subtracted the x and y coordinates of another
2295	* object, needs to travel toward it.	2143	* object, needs to travel toward it.
2296	*/	2144	*/
2297
2298	int	2145	int
2299	find_dir_2 (int x, int y)	2146	find_dir_2 (int x, int y)
2300	{	2147	{
2301	int	2148	int q;
2302	q;
2303		2149
2304	if (y)	2150	if (y)
2305	q = x * 100 / y;	2151	q = x * 100 / y;
2306	else if (x)	2152	else if (x)
2307	q = -300 * x;	2153	q = -300 * x;
…		…
2332		2178
2333	return 3;	2179	return 3;
2334	}	2180	}
2335		2181
2336	/*	2182	/*
2337	* absdir(int): Returns a number between 1 and 8, which represent
2338	* the "absolute" direction of a number (it actually takes care of
2339	* "overflow" in previous calculations of a direction).
2340	*/
2341
2342	int
2343	absdir (int d)
2344	{
2345	while (d < 1)
2346	d += 8;
2347	while (d > 8)
2348	d -= 8;
2349	return d;
2350	}
2351
2352	/*
2353	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is	2183	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is
2354	* between two directions (which are expected to be absolute (see absdir())	2184	* between two directions (which are expected to be absolute (see absdir())
2355	*/	2185	*/
2356
2357	int	2186	int
2358	dirdiff (int dir1, int dir2)	2187	dirdiff (int dir1, int dir2)
2359	{	2188	{
2360	int	2189	int d;
2361	d;
2362		2190
2363	d = abs (dir1 - dir2);	2191	d = abs (dir1 - dir2);
2364	if (d > 4)	2192	if (d > 4)
2365	d = 8 - d;	2193	d = 8 - d;
		2194
2366	return d;	2195	return d;
2367	}	2196	}
2368		2197
2369	/* peterm:	2198	/* peterm:
2370	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.	2199	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.
…		…
2373	* This basically means that if direction is 15, then it could either go	2202	* This basically means that if direction is 15, then it could either go
2374	* direction 4, 14, or 16 to get back to where we are.	2203	* direction 4, 14, or 16 to get back to where we are.
2375	* Moved from spell_util.c to object.c with the other related direction	2204	* Moved from spell_util.c to object.c with the other related direction
2376	* functions.	2205	* functions.
2377	*/	2206	*/
2378
2379	int
2380	reduction_dir[SIZEOFFREE][3] = {	2207	int reduction_dir[SIZEOFFREE][3] = {
2381	{0, 0, 0}, /* 0 */	2208	{0, 0, 0}, /* 0 */
2382	{0, 0, 0}, /* 1 */	2209	{0, 0, 0}, /* 1 */
2383	{0, 0, 0}, /* 2 */	2210	{0, 0, 0}, /* 2 */
2384	{0, 0, 0}, /* 3 */	2211	{0, 0, 0}, /* 3 */
2385	{0, 0, 0}, /* 4 */	2212	{0, 0, 0}, /* 4 */
…		…
2433	* find a path to that monster that we found. If not,	2260	* find a path to that monster that we found. If not,
2434	* we don't bother going toward it. Returns 1 if we	2261	* we don't bother going toward it. Returns 1 if we
2435	* can see a direct way to get it	2262	* can see a direct way to get it
2436	* Modified to be map tile aware -.MSW	2263	* Modified to be map tile aware -.MSW
2437	*/	2264	*/
2438
2439
2440	int	2265	int
2441	can_see_monsterP (maptile *m, int x, int y, int dir)	2266	can_see_monsterP (maptile *m, int x, int y, int dir)
2442	{	2267	{
2443	sint16 dx, dy;	2268	sint16 dx, dy;
2444	int
2445	mflags;	2269	int mflags;
2446		2270
2447	if (dir < 0)	2271	if (dir < 0)
2448	return 0; /* exit condition: invalid direction */	2272	return 0; /* exit condition: invalid direction */
2449		2273
2450	dx = x + freearr_x[dir];	2274	dx = x + freearr_x[dir];
…		…
2463	return 0;	2287	return 0;
2464		2288
2465	/* yes, can see. */	2289	/* yes, can see. */
2466	if (dir < 9)	2290	if (dir < 9)
2467	return 1;	2291	return 1;
		2292
2468	return can_see_monsterP (m, x, y, reduction_dir[dir][0]) |	2293	return can_see_monsterP (m, x, y, reduction_dir[dir][0])
2469	can_see_monsterP (m, x, y, reduction_dir[dir][1]) | can_see_monsterP (m, x, y, reduction_dir[dir][2]);	2294	| can_see_monsterP (m, x, y, reduction_dir[dir][1])
		2295	| can_see_monsterP (m, x, y, reduction_dir[dir][2]);
2470	}	2296	}
2471
2472
2473		2297
2474	/*	2298	/*
2475	* can_pick(picker, item): finds out if an object is possible to be	2299	* can_pick(picker, item): finds out if an object is possible to be
2476	* picked up by the picker. Returnes 1 if it can be	2300	* picked up by the picker. Returnes 1 if it can be
2477	* picked up, otherwise 0.	2301	* picked up, otherwise 0.
…		…
2479	* Cf 0.91.3 - don't let WIZ's pick up anything - will likely cause	2303	* Cf 0.91.3 - don't let WIZ's pick up anything - will likely cause
2480	* core dumps if they do.	2304	* core dumps if they do.
2481	*	2305	*
2482	* Add a check so we can't pick up invisible objects (0.93.8)	2306	* Add a check so we can't pick up invisible objects (0.93.8)
2483	*/	2307	*/
2484
2485	int	2308	int
2486	can_pick (const object *who, const object *item)	2309	can_pick (const object *who, const object *item)
2487	{	2310	{
2488	return /*QUERY_FLAG(who,FLAG_WIZ)|| */	2311	return /*QUERY_FLAG(who,FLAG_WIZ)|| */
2489	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&	2312	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&
2490	!QUERY_FLAG (item, FLAG_ALIVE) && !item->invisible && (who->type == PLAYER || item->weight < who->weight / 3));	2313	!QUERY_FLAG (item, FLAG_ALIVE) && !item->invisible && (who->type == PLAYER || item->weight < who->weight / 3));
2491	}	2314	}
2492		2315
2493
2494	/*	2316	/*
2495	* create clone from object to another	2317	* create clone from object to another
2496	*/	2318	*/
2497	object *	2319	object *
2498	object_create_clone (object *asrc)	2320	object::deep_clone ()
2499	{	2321	{
2500	object *dst = 0, *tmp, *src, *part, *prev, *item;	2322	assert (("deep_clone called on non-head object", is_head ()));
2501		2323
2502	if (!asrc)	2324	object *dst = clone ();
2503	return 0;
2504		2325
2505	src = asrc;	2326	object *prev = dst;
2506	if (src->head)
2507	src = src->head;
2508
2509	prev = 0;
2510	for (part = src; part; part = part->more)	2327	for (object *part = this->more; part; part = part->more)
2511	{	2328	{
2512	tmp = part->clone ();	2329	object *tmp = part->clone ();
2513	tmp->x -= src->x;
2514	tmp->y -= src->y;
2515
2516	if (!part->head)
2517	{
2518	dst = tmp;
2519	tmp->head = 0;
2520	}
2521	else
2522	{
2523	tmp->head = dst;	2330	tmp->head = dst;
2524	}
2525
2526	tmp->more = 0;
2527
2528	if (prev)
2529	prev->more = tmp;	2331	prev->more = tmp;
2530
2531	prev = tmp;	2332	prev = tmp;
2532	}	2333	}
2533		2334
2534	for (item = src->inv; item; item = item->below)	2335	for (object *item = inv; item; item = item->below)
2535	insert_ob_in_ob (object_create_clone (item), dst);	2336	insert_ob_in_ob (item->deep_clone (), dst);
2536		2337
2537	return dst;	2338	return dst;
2538	}
2539
2540	/* GROS - Creates an object using a string representing its content. */
2541	/* Basically, we save the content of the string to a temp file, then call */
2542	/* load_object on it. I admit it is a highly inefficient way to make things, */
2543	/* but it was simple to make and allows reusing the load_object function. */
2544	/* Remember not to use load_object_str in a time-critical situation. */
2545	/* Also remember that multiparts objects are not supported for now. */
2546
2547	object *
2548	load_object_str (const char *obstr)
2549	{
2550	object *op;
2551	char filename[MAX_BUF];
2552
2553	sprintf (filename, "%s/cfloadobstr2044", settings.tmpdir);
2554
2555	FILE *tempfile = fopen (filename, "w");
2556
2557	if (tempfile == NULL)
2558	{
2559	LOG (llevError, "Error - Unable to access load object temp file\n");
2560	return NULL;
2561	}
2562
2563	fprintf (tempfile, obstr);
2564	fclose (tempfile);
2565
2566	op = object::create ();
2567
2568	object_thawer thawer (filename);
2569
2570	if (thawer)
2571	load_object (thawer, op, 0);
2572
2573	LOG (llevDebug, " load str completed, object=%s\n", &op->name);
2574	CLEAR_FLAG (op, FLAG_REMOVED);
2575
2576	return op;
2577	}	2339	}
2578		2340
2579	/* This returns the first object in who's inventory that	2341	/* This returns the first object in who's inventory that
2580	* has the same type and subtype match.	2342	* has the same type and subtype match.
2581	* returns NULL if no match.	2343	* returns NULL if no match.
2582	*/	2344	*/
2583	object *	2345	object *
2584	find_obj_by_type_subtype (const object *who, int type, int subtype)	2346	find_obj_by_type_subtype (const object *who, int type, int subtype)
2585	{	2347	{
2586	object *tmp;
2587
2588	for (tmp = who->inv; tmp; tmp = tmp->below)	2348	for (object *tmp = who->inv; tmp; tmp = tmp->below)
2589	if (tmp->type == type && tmp->subtype == subtype)	2349	if (tmp->type == type && tmp->subtype == subtype)
2590	return tmp;	2350	return tmp;
2591		2351
2592	return NULL;
2593	}
2594
2595	/* If ob has a field named key, return the link from the list,
2596	* otherwise return NULL.
2597	*
2598	* key must be a passed in shared string - otherwise, this won't
2599	* do the desired thing.
2600	*/
2601	key_value *
2602	get_ob_key_link (const object *ob, const char *key)
2603	{
2604	key_value *link;
2605
2606	for (link = ob->key_values; link != NULL; link = link->next)
2607	if (link->key == key)
2608	return link;
2609
2610	return NULL;
2611	}
2612
2613	/*
2614	* Returns the value of op has an extra_field for key, or NULL.
2615	*
2616	* The argument doesn't need to be a shared string.
2617	*
2618	* The returned string is shared.
2619	*/
2620	const char *
2621	get_ob_key_value (const object *op, const char *const key)
2622	{
2623	key_value *link;
2624	shstr_cmp canonical_key (key);
2625
2626	if (!canonical_key)
2627	{
2628	/* 1. There being a field named key on any object
2629	* implies there'd be a shared string to find.
2630	* 2. Since there isn't, no object has this field.
2631	* 3. Therefore, *this* object doesn't have this field.
2632	*/
2633	return 0;
2634	}
2635
2636	/* This is copied from get_ob_key_link() above -
2637	* only 4 lines, and saves the function call overhead.
2638	*/
2639	for (link = op->key_values; link; link = link->next)
2640	if (link->key == canonical_key)
2641	return link->value;
2642
2643	return 0;	2352	return 0;
2644	}	2353	}
2645		2354
2646		2355	const shstr &
2647	/*	2356	object::kv_get (const shstr &key) const
2648	* Updates the canonical_key in op to value.
2649	*
2650	* canonical_key is a shared string (value doesn't have to be).
2651	*
2652	* Unless add_key is TRUE, it won't add fields, only change the value of existing
2653	* keys.
2654	*
2655	* Returns TRUE on success.
2656	*/
2657	int
2658	set_ob_key_value_s (object *op, const shstr & canonical_key, const char *value, int add_key)
2659	{	2357	{
2660	key_value *	2358	for (key_value *kv = key_values; kv; kv = kv->next)
2661	field = NULL, *last = NULL;	2359	if (kv->key == key)
		2360	return kv->value;
2662		2361
2663	for (field = op->key_values; field != NULL; field = field->next)	2362	return shstr_null;
2664	{	2363	}
2665	if (field->key != canonical_key)	2364
		2365	void
		2366	object::kv_set (const shstr &key, const shstr &value)
		2367	{
		2368	for (key_value *kv = key_values; kv; kv = kv->next)
		2369	if (kv->key == key)
2666	{	2370	{
2667	last = field;	2371	kv->value = value;
2668	continue;	2372	return;
2669	}	2373	}
2670		2374
2671	if (value)	2375	key_value *kv = new key_value;
2672	field->value = value;	2376
2673	else	2377	kv->next = key_values;
		2378	kv->key = key;
		2379	kv->value = value;
		2380
		2381	key_values = kv;
		2382	}
		2383
		2384	void
		2385	object::kv_del (const shstr &key)
		2386	{
		2387	for (key_value **kvp = &key_values; *kvp; kvp = &(*kvp)->next)
		2388	if ((*kvp)->key == key)
2674	{	2389	{
2675	/* Basically, if the archetype has this key set,	2390	key_value *kv = *kvp;
2676	* we need to store the null value so when we save	2391	*kvp = (*kvp)->next;
2677	* it, we save the empty value so that when we load,	2392	delete kv;
2678	* we get this value back again.	2393	return;
2679	*/
2680	if (get_ob_key_link (&op->arch->clone, canonical_key))
2681	field->value = 0;
2682	else
2683	{
2684	if (last)
2685	last->next = field->next;
2686	else
2687	op->key_values = field->next;
2688
2689	delete field;
2690	}
2691	}	2394	}
2692	return TRUE;
2693	}
2694	/* IF we get here, key doesn't exist */
2695
2696	/* No field, we'll have to add it. */
2697
2698	if (!add_key)
2699	{
2700	return FALSE;
2701	}
2702	/* There isn't any good reason to store a null
2703	* value in the key/value list. If the archetype has
2704	* this key, then we should also have it, so shouldn't
2705	* be here. If user wants to store empty strings,
2706	* should pass in ""
2707	*/
2708	if (value == NULL)
2709	return TRUE;
2710
2711	field = new key_value;
2712
2713	field->key = canonical_key;
2714	field->value = value;
2715	/* Usual prepend-addition. */
2716	field->next = op->key_values;
2717	op->key_values = field;
2718
2719	return TRUE;
2720	}
2721
2722	/*
2723	* Updates the key in op to value.
2724	*
2725	* If add_key is FALSE, this will only update existing keys,
2726	* and not add new ones.
2727	* In general, should be little reason FALSE is ever passed in for add_key
2728	*
2729	* Returns TRUE on success.
2730	*/
2731	int
2732	set_ob_key_value (object *op, const char *key, const char *value, int add_key)
2733	{
2734	shstr key_ (key);
2735
2736	return set_ob_key_value_s (op, key_, value, add_key);
2737	}	2395	}
2738		2396
2739	object::depth_iterator::depth_iterator (object *container)	2397	object::depth_iterator::depth_iterator (object *container)
2740	: iterator_base (container)	2398	: iterator_base (container)
2741	{	2399	{
…		…
2755	}	2413	}
2756	else	2414	else
2757	item = item->env;	2415	item = item->env;
2758	}	2416	}
2759		2417
		2418	const char *
		2419	object::flag_desc (char *desc, int len) const
		2420	{
		2421	char *p = desc;
		2422	bool first = true;
		2423
		2424	*p = 0;
		2425
		2426	for (int i = 0; i < NUM_FLAGS; i++)
		2427	{
		2428	if (len <= 10) // magic constant!
		2429	{
		2430	snprintf (p, len, ",...");
		2431	break;
		2432	}
		2433
		2434	if (flag [i])
		2435	{
		2436	int cnt = snprintf (p, len, "%s%d", first ? "" : ",", i);
		2437	len -= cnt;
		2438	p += cnt;
		2439	first = false;
		2440	}
		2441	}
		2442
		2443	return desc;
		2444	}
		2445
2760	// return a suitable string describing an objetc in enough detail to find it	2446	// return a suitable string describing an object in enough detail to find it
2761	const char *	2447	const char *
2762	object::debug_desc (char *info) const	2448	object::debug_desc (char *info) const
2763	{	2449	{
		2450	char flagdesc[512];
2764	char info2[256 * 3];	2451	char info2[256 * 4];
2765	char *p = info;	2452	char *p = info;
2766		2453
2767	p += snprintf (p, 256, "%d=\"%s%s%s\"",	2454	p += snprintf (p, 512, "{cnt:%d,uuid:%s,name:\"%s\"%s%s,flags:[%s],type:%d}",
2768	count,	2455	count,
		2456	uuid.c_str (),
2769	&name,	2457	&name,
2770	title ? " " : "",	2458	title ? "\",title:\"" : "",
2771	title ? (const char *)title : "");	2459	title ? (const char *)title : "",
		2460	flag_desc (flagdesc, 512), type);
2772		2461
2773	if (env)	2462	if (!flag[FLAG_REMOVED] && env)
2774	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));	2463	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));
2775		2464
2776	if (map)	2465	if (map)
2777	p += snprintf (p, 256, "(on %s@%d+%d)", map->path, x, y);	2466	p += snprintf (p, 256, "(on %s@%d+%d)", &map->path, x, y);
2778		2467
2779	return info;	2468	return info;
2780	}	2469	}
2781		2470
2782	const char *	2471	const char *
2783	object::debug_desc () const	2472	object::debug_desc () const
2784	{	2473	{
2785	static char info[256 * 3];	2474	static char info[3][256 * 4];
		2475	static int info_idx;
		2476
2786	return debug_desc (info);	2477	return debug_desc (info [++info_idx % 3]);
2787	}	2478	}
2788		2479
		2480	struct region *
		2481	object::region () const
		2482	{
		2483	return map ? map->region (x, y)
		2484	: region::default_region ();
		2485	}
		2486
		2487	const materialtype_t *
		2488	object::dominant_material () const
		2489	{
		2490	if (materialtype_t *mt = name_to_material (materialname))
		2491	return mt;
		2492
		2493	return name_to_material (shstr_unknown);
		2494	}
		2495
		2496	void
		2497	object::open_container (object *new_container)
		2498	{
		2499	if (container == new_container)
		2500	return;
		2501
		2502	object *old_container = container;
		2503
		2504	if (old_container)
		2505	{
		2506	if (INVOKE_OBJECT (CLOSE, old_container, ARG_OBJECT (this)))
		2507	return;
		2508
		2509	#if 0
		2510	// remove the "Close old_container" object.
		2511	if (object *closer = old_container->inv)
		2512	if (closer->type == CLOSE_CON)
		2513	closer->destroy ();
		2514	#endif
		2515
		2516	// make sure the container is available
		2517	esrv_send_item (this, old_container);
		2518
		2519	old_container->flag [FLAG_APPLIED] = false;
		2520	container = 0;
		2521
		2522	// client needs item update to make it work, client bug requires this to be separate
		2523	esrv_update_item (UPD_FLAGS, this, old_container);
		2524
		2525	new_draw_info_format (NDI_UNIQUE, 0, this, "You close %s.", query_name (old_container));
		2526	play_sound (sound_find ("chest_close"));
		2527	}
		2528
		2529	if (new_container)
		2530	{
		2531	if (INVOKE_OBJECT (OPEN, new_container, ARG_OBJECT (this)))
		2532	return;
		2533
		2534	// TODO: this does not seem to serve any purpose anymore?
		2535	#if 0
		2536	// insert the "Close Container" object.
		2537	if (archetype *closer = new_container->other_arch)
		2538	{
		2539	object *closer = arch_to_object (new_container->other_arch);
		2540	closer->flag [FLAG_NO_MAP_SAVE] = 1;
		2541	new_container->insert (closer);
		2542	}
		2543	#endif
		2544
		2545	new_draw_info_format (NDI_UNIQUE, 0, this, "You open %s.", query_name (new_container));
		2546
		2547	// make sure the container is available, client bug requires this to be separate
		2548	esrv_send_item (this, new_container);
		2549
		2550	new_container->flag [FLAG_APPLIED] = true;
		2551	container = new_container;
		2552
		2553	// client needs flag change
		2554	esrv_update_item (UPD_FLAGS, this, new_container);
		2555	esrv_send_inventory (this, new_container);
		2556	play_sound (sound_find ("chest_open"));
		2557	}
		2558	// else if (!old_container->env && contr && contr->ns)
		2559	// contr->ns->floorbox_reset ();
		2560	}
		2561
		2562	object *
		2563	object::force_find (const shstr name)
		2564	{
		2565	/* cycle through his inventory to look for the MARK we want to
		2566	* place
		2567	*/
		2568	for (object *tmp = inv; tmp; tmp = tmp->below)
		2569	if (tmp->type == FORCE && tmp->slaying == name)
		2570	return splay (tmp);
		2571
		2572	return 0;
		2573	}
		2574
		2575	void
		2576	object::force_add (const shstr name, int duration)
		2577	{
		2578	if (object *force = force_find (name))
		2579	force->destroy ();
		2580
		2581	object *force = get_archetype (FORCE_NAME);
		2582
		2583	force->slaying = name;
		2584	force->stats.food = 1;
		2585	force->speed_left = -1.f;
		2586
		2587	force->set_speed (duration ? 1.f / duration : 0.f);
		2588	force->flag [FLAG_IS_USED_UP] = true;
		2589	force->flag [FLAG_APPLIED] = true;
		2590
		2591	insert (force);
		2592	}
		2593
		2594	void
		2595	object::play_sound (faceidx sound)
		2596	{
		2597	if (!sound)
		2598	return;
		2599
		2600	if (flag [FLAG_REMOVED])
		2601	return;
		2602
		2603	if (env)
		2604	{
		2605	if (object *pl = in_player ())
		2606	pl->contr->play_sound (sound);
		2607	}
		2608	else
		2609	map->play_sound (sound, x, y);
		2610	}
		2611

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