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Comparing deliantra/server/common/object.C (file contents):
Revision 1.83 by root, Mon Dec 25 14:43:22 2006 UTC vs.
Revision 1.217 by root, Wed Apr 23 07:13:23 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;	144	key_value *wants_field;
139		145
140	/* n-squared behaviour (see get_ob_key_link()), but I'm hoping both	146	/* n-squared behaviour (see get_ob_key_link()), but I'm hoping both
141	* objects with lists are rare, and lists stay short. If not, use a	147	* objects with lists are rare, and lists stay short. If not, use a
142	* different structure or at least keep the lists sorted...	148	* different structure or at least keep the lists sorted...
143	*/	149	*/
144		150
145	/* For each field in wants, */	151	/* For each field in wants, */
146	for (wants_field = wants->key_values; wants_field != NULL; wants_field = wants_field->next)	152	for (wants_field = wants->key_values; wants_field; wants_field = wants_field->next)
147	{	153	{
148	key_value *has_field;	154	key_value *has_field;
149		155
150	/* Look for a field in has with the same key. */	156	/* Look for a field in has with the same key. */
151	has_field = get_ob_key_link (has, wants_field->key);	157	has_field = get_ob_key_link (has, wants_field->key);
152		158
153	if (has_field == NULL)	159	if (!has_field)
154	{
155	/* No field with that name. */	160	return 0; /* No field with that name. */
156	return FALSE;
157	}
158		161
159	/* Found the matching field. */	162	/* Found the matching field. */
160	if (has_field->value != wants_field->value)	163	if (has_field->value != wants_field->value)
161	{
162	/* Values don't match, so this half of the comparison is false. */	164	return 0; /* Values don't match, so this half of the comparison is false. */
163	return FALSE;
164	}
165		165
166	/* If we get here, we found a match. Now for the next field in wants. */	166	/* If we get here, we found a match. Now for the next field in wants. */
167	}	167	}
168		168
169	/* If we get here, every field in wants has a matching field in has. */	169	/* If we get here, every field in wants has a matching field in has. */
170	return TRUE;	170	return 1;
171	}	171	}
172		172
173	/* Returns TRUE if ob1 has the same key_values as ob2. */	173	/* Returns TRUE if ob1 has the same key_values as ob2. */
174	static int	174	static bool
175	compare_ob_value_lists (const object *ob1, const object *ob2)	175	compare_ob_value_lists (const object *ob1, const object *ob2)
176	{	176	{
177	/* However, there may be fields in has which aren't partnered in wants,	177	/* However, there may be fields in has which aren't partnered in wants,
178	* so we need to run the comparison *twice*. :(	178	* so we need to run the comparison *twice*. :(
179	*/	179	*/
…		…
190	* Check nrof variable *before* calling can_merge()	190	* Check nrof variable *before* calling can_merge()
191	*	191	*
192	* Improvements made with merge: Better checking on potion, and also	192	* Improvements made with merge: Better checking on potion, and also
193	* check weight	193	* check weight
194	*/	194	*/
195
196	bool object::can_merge_slow (object *ob1, object *ob2)	195	bool object::can_merge_slow (object *ob1, object *ob2)
197	{	196	{
198	/* A couple quicksanity checks */	197	/* A couple quicksanity checks */
199	if (ob1 == ob2	198	if (ob1 == ob2
200	|| ob1->type != ob2->type	199	|| ob1->type != ob2->type
201	|| ob1->speed != ob2->speed	200	|| ob1->speed != ob2->speed
202	|| ob1->value != ob2->value	201	|| ob1->value != ob2->value
203	|| ob1->name != ob2->name)	202	|| ob1->name != ob2->name)
204	return 0;	203	return 0;
205		204
206	//TODO: this ain't working well, use nicer and correct overflow check	205	/* 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	206	* for unsigned overflow (2c), second part checks whether the result
208	* value could not be stored in a sint32 (which unfortunately sometimes is	207	* would fit into a 32 bit signed int, which is often used to hold
209	* used to store nrof).	208	* nrof values.
210	*/	209	*/
211	if (ob1->nrof + ob2->nrof >= 1UL << 31)	210	if (~ob1->nrof < ob2->nrof || ob1->nrof + ob2->nrof > (1UL << 31))
212	return 0;	211	return 0;
213		212
214	/* If the objects have been identified, set the BEEN_APPLIED flag.	213	/* 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	214	* 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	215	* 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	216	* are not equal - just if it has been identified, the been_applied
218	* flags lose any meaning.	217	* flags lose any meaning.
219	*/	218	*/
220	if (QUERY_FLAG (ob1, FLAG_IDENTIFIED))	219	if (QUERY_FLAG (ob1, FLAG_IDENTIFIED))
221	SET_FLAG (ob1, FLAG_BEEN_APPLIED);	220	SET_FLAG (ob1, FLAG_BEEN_APPLIED);
222		221
223	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))	222	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))
224	SET_FLAG (ob2, FLAG_BEEN_APPLIED);	223	SET_FLAG (ob2, FLAG_BEEN_APPLIED);
225		224
226	if ((ob1->flag ^ ob2->flag).reset (FLAG_INV_LOCKED).reset (FLAG_CLIENT_SENT).any ()	225	if (ob1->arch->name != ob2->arch->name
227	|| ob1->arch != ob2->arch
228	|| ob1->name != ob2->name	226	|| ob1->name != ob2->name
229	|| ob1->title != ob2->title	227	|| ob1->title != ob2->title
230	|| ob1->msg != ob2->msg	228	|| ob1->msg != ob2->msg
231	|| ob1->weight != ob2->weight	229	|| 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	230	|| ob1->attacktype != ob2->attacktype
235	|| ob1->magic != ob2->magic	231	|| ob1->magic != ob2->magic
236	|| ob1->slaying != ob2->slaying	232	|| ob1->slaying != ob2->slaying
237	|| ob1->skill != ob2->skill	233	|| ob1->skill != ob2->skill
238	|| ob1->value != ob2->value	234	|| ob1->value != ob2->value
…		…
245	|| ob1->move_block != ob2->move_block	241	|| ob1->move_block != ob2->move_block
246	|| ob1->move_allow != ob2->move_allow	242	|| ob1->move_allow != ob2->move_allow
247	|| ob1->move_on != ob2->move_on	243	|| ob1->move_on != ob2->move_on
248	|| ob1->move_off != ob2->move_off	244	|| ob1->move_off != ob2->move_off
249	|| ob1->move_slow != ob2->move_slow	245	|| ob1->move_slow != ob2->move_slow
250	|| ob1->move_slow_penalty != ob2->move_slow_penalty)	246	|| ob1->move_slow_penalty != ob2->move_slow_penalty
		247	|| memcmp (&ob1->resist, &ob2->resist, sizeof (ob1->resist))
		248	|| memcmp (&ob1->stats , &ob2->stats , sizeof (ob1->stats)))
251	return 0;	249	return 0;
252		250
		251	if ((ob1->flag ^ ob2->flag)
		252	.reset (FLAG_INV_LOCKED)
		253	.reset (FLAG_CLIENT_SENT)
		254	.reset (FLAG_REMOVED)
		255	.any ())
		256	return 0;
		257
253	/* This is really a spellbook check - really, we should	258	/* This is really a spellbook check - we should in general
254	* check all objects in the inventory.	259	* not merge objects with real inventories, as splitting them
		260	* is hard.
255	*/	261	*/
256	if (ob1->inv || ob2->inv)	262	if (ob1->inv || ob2->inv)
257	{	263	{
258	/* if one object has inventory but the other doesn't, not equiv */	264	if (!(ob1->inv && ob2->inv))
259	if ((ob1->inv && !ob2->inv) || (ob2->inv && !ob1->inv))	265	return 0; /* inventories differ in length */
260	return 0;
261		266
262	/* Now check to see if the two inventory objects could merge */	267	if (ob1->inv->below || ob2->inv->below)
		268	return 0; /* more than one object in inv */
		269
263	if (!object::can_merge (ob1->inv, ob2->inv))	270	if (!object::can_merge (ob1->inv, ob2->inv))
264	return 0;	271	return 0; /* inventory objects differ */
265		272
266	/* inventory ok - still need to check rest of this object to see	273	/* inventory ok - still need to check rest of this object to see
267	* if it is valid.	274	* if it is valid.
268	*/	275	*/
269	}	276	}
…		…
277		284
278	/* Note sure why the following is the case - either the object has to	285	/* 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	286	* be animated or have a very low speed. Is this an attempted monster
280	* check?	287	* check?
281	*/	288	*/
282	if (!QUERY_FLAG (ob1, FLAG_ANIMATE) && FABS ((ob1)->speed) > MIN_ACTIVE_SPEED)	289	if (!QUERY_FLAG (ob1, FLAG_ANIMATE) && ob1->has_active_speed ())
283	return 0;	290	return 0;
284		291
285	switch (ob1->type)	292	switch (ob1->type)
286	{	293	{
287	case SCROLL:	294	case SCROLL:
288	if (ob1->level != ob2->level)	295	if (ob1->level != ob2->level)
289	return 0;	296	return 0;
290	break;	297	break;
291	}	298	}
292		299
293	if (ob1->key_values != NULL || ob2->key_values != NULL)	300	if (ob1->key_values || ob2->key_values)
294	{	301	{
295	/* At least one of these has key_values. */	302	/* At least one of these has key_values. */
296	if ((ob1->key_values == NULL) != (ob2->key_values == NULL))	303	if ((!ob1->key_values) != (!ob2->key_values))
297	/* One has fields, but the other one doesn't. */	304	return 0; /* One has fields, but the other one doesn't. */
		305
		306	if (!compare_ob_value_lists (ob1, ob2))
298	return 0;	307	return 0;
299	else if (!compare_ob_value_lists (ob1, ob2))
300	return 0;
301	}	308	}
302		309
303	//TODO: generate an event or call into perl for additional checks
304	if (ob1->self || ob2->self)	310	if (ob1->self || ob2->self)
305	{	311	{
306	ob1->optimise ();	312	ob1->optimise ();
307	ob2->optimise ();	313	ob2->optimise ();
308		314
309	if (ob1->self || ob2->self)	315	if (ob1->self || ob2->self)
		316	{
		317	int k1 = ob1->self ? HvTOTALKEYS (ob1->self) : 0;
		318	int k2 = ob2->self ? HvTOTALKEYS (ob2->self) : 0;
		319
		320	if (k1 != k2)
310	return 0;	321	return 0;
		322
		323	if (k1 == 0)
		324	return 1;
		325
		326	if (!cfperl_can_merge (ob1, ob2))
		327	return 0;
		328	}
311	}	329	}
312		330
313	/* Everything passes, must be OK. */	331	/* Everything passes, must be OK. */
314	return 1;	332	return 1;
315	}	333	}
316		334
		335	// find player who can see this object
		336	object *
		337	object::visible_to () const
		338	{
		339	if (!flag [FLAG_REMOVED])
		340	{
		341	// see if we are in a container of sorts
		342	if (env)
		343	{
		344	// the player inventory itself is always visible
		345	if (env->type == PLAYER)
		346	return env;
		347
		348	// else a player could have our env open
		349	object *envest = env->outer_env ();
		350
		351	// the player itself is always on a map, so we will find him here
		352	// even if our inv is in a player.
		353	if (envest->is_on_map ())
		354	if (object *pl = envest->ms ().player ())
		355	if (pl->container == env)
		356	return pl;
		357	}
		358	else
		359	{
		360	// maybe there is a player standing on the same mapspace
		361	// this will catch the case where "this" is a player
		362	if (object *pl = ms ().player ())
		363	return pl;
		364	}
		365	}
		366
		367	return 0;
		368	}
		369
		370	// adjust weight per container type ("of holding")
		371	static sint32
		372	weight_adjust (object *op, sint32 weight)
		373	{
		374	return op->type == CONTAINER
		375	? lerp (weight, 0, 100, 0, 100 - op->stats.Str)
		376	: weight;
		377	}
		378
317	/*	379	/*
		380	* adjust_weight(object, weight) adds the specified weight to an object,
		381	* and also updates how much the environment(s) is/are carrying.
		382	*/
		383	static void
		384	adjust_weight (object *op, sint32 weight)
		385	{
		386	while (op)
		387	{
		388	weight = weight_adjust (op, weight);
		389
		390	if (!weight)
		391	return;
		392
		393	op->carrying += weight;
		394
		395	if (object *pl = op->visible_to ())
		396	if (pl != op) // player is handled lazily
		397	esrv_update_item (UPD_WEIGHT, pl, op);
		398
		399	op = op->env;
		400	}
		401	}
		402
		403	/*
318	* sum_weight() is a recursive function which calculates the weight	404	* this is a recursive function which calculates the weight
319	* an object is carrying. It goes through in figures out how much	405	* an object is carrying. It goes through op and figures out how much
320	* containers are carrying, and sums it up.	406	* containers are carrying, and sums it up.
321	*/	407	*/
322	long	408	void
323	sum_weight (object *op)	409	object::update_weight ()
324	{	410	{
325	long sum;	411	sint32 sum = 0;
326	object *inv;
327		412
328	for (sum = 0, inv = op->inv; inv != NULL; inv = inv->below)	413	for (object *op = inv; op; op = op->below)
329	{	414	{
330	if (inv->inv)	415	if (op->inv)
331	sum_weight (inv);	416	op->update_weight ();
332	sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1);	417
		418	sum += op->total_weight ();
		419	}
		420
		421	sum = weight_adjust (this, sum);
		422
		423	if (sum != carrying)
333	}	424	{
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;	425	carrying = sum;
340		426
341	return sum;	427	if (object *pl = visible_to ())
		428	if (pl != this) // player is handled lazily
		429	esrv_update_item (UPD_WEIGHT, pl, this);
		430	}
342	}	431	}
343		432
344	/**	433	/*
345	* Return the outermost environment object for a given object.	434	* Used by: Server DM commands: dumpbelow, dump. Some error messages.
346	*/	435	*/
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 *	436	char *
363	dump_object (object *op)	437	dump_object (object *op)
364	{	438	{
365	if (!op)	439	if (!op)
366	return strdup ("[NULLOBJ]");	440	return strdup ("[NULLOBJ]");
367		441
368	object_freezer freezer;	442	object_freezer freezer;
369	save_object (freezer, op, 3);	443	op->write (freezer);
370	return freezer.as_string ();	444	return freezer.as_string ();
371	}	445	}
372		446
373	/*	447	/*
374	* get_nearest_part(multi-object, object 2) returns the part of the	448	* get_nearest_part(multi-object, object 2) returns the part of the
375	* multi-object 1 which is closest to the second object.	449	* multi-object 1 which is closest to the second object.
376	* If it's not a multi-object, it is returned.	450	* If it's not a multi-object, it is returned.
377	*/	451	*/
378
379	object *	452	object *
380	get_nearest_part (object *op, const object *pl)	453	get_nearest_part (object *op, const object *pl)
381	{	454	{
382	object *tmp, *closest;	455	object *tmp, *closest;
383	int last_dist, i;	456	int last_dist, i;
384		457
385	if (op->more == NULL)	458	if (!op->more)
386	return op;	459	return op;
		460
387	for (last_dist = distance (op, pl), closest = op, tmp = op->more; tmp != NULL; tmp = tmp->more)	461	for (last_dist = distance (op, pl), closest = op, tmp = op->more;
		462	tmp;
		463	tmp = tmp->more)
388	if ((i = distance (tmp, pl)) < last_dist)	464	if ((i = distance (tmp, pl)) < last_dist)
389	closest = tmp, last_dist = i;	465	closest = tmp, last_dist = i;
		466
390	return closest;	467	return closest;
391	}	468	}
392		469
393	/*	470	/*
394	* Returns the object which has the count-variable equal to the argument.	471	* Returns the object which has the count-variable equal to the argument.
		472	* VERRRY slow.
395	*/	473	*/
396
397	object *	474	object *
398	find_object (tag_t i)	475	find_object (tag_t i)
399	{	476	{
400	for (object *op = object::first; op; op = op->next)	477	for_all_objects (op)
401	if (op->count == i)	478	if (op->count == i)
402	return op;	479	return op;
403		480
404	return 0;	481	return 0;
405	}	482	}
406		483
407	/*	484	/*
408	* Returns the first object which has a name equal to the argument.	485	* Returns the first object which has a name equal to the argument.
409	* Used only by the patch command, but not all that useful.	486	* Used only by the patch command, but not all that useful.
410	* Enables features like "patch <name-of-other-player> food 999"	487	* Enables features like "patch <name-of-other-player> food 999"
411	*/	488	*/
412
413	object *	489	object *
414	find_object_name (const char *str)	490	find_object_name (const char *str)
415	{	491	{
416	shstr_cmp str_ (str);	492	shstr_cmp str_ (str);
417	object *op;	493	object *op;
418		494
419	for (op = object::first; op != NULL; op = op->next)	495	for_all_objects (op)
420	if (op->name == str_)	496	if (op->name == str_)
421	break;	497	break;
422		498
423	return op;	499	return op;
424	}	500	}
425		501
426	void
427	free_all_object_data ()
428	{
429	LOG (llevDebug, "%d allocated objects\n", nrofallocobjects);
430	}
431
432	/*	502	/*
433	* Sets the owner and sets the skill and exp pointers to owner's current	503	* Sets the owner and sets the skill and exp pointers to owner's current
434	* skill and experience objects.	504	* skill and experience objects.
		505	* ACTUALLY NO! investigate! TODO
435	*/	506	*/
436	void	507	void
437	object::set_owner (object *owner)	508	object::set_owner (object *owner)
438	{	509	{
		510	// allow objects which own objects
439	if (!owner)	511	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)	512	while (owner->owner)
450	owner = owner->owner;	513	owner = owner->owner;
		514
		515	if (flag [FLAG_FREED])
		516	{
		517	LOG (llevError | logBacktrace, "tried to set owner of %s to %s\n", debug_desc (), owner->debug_desc ());
		518	return;
		519	}
451		520
452	this->owner = owner;	521	this->owner = owner;
		522	}
		523
		524	int
		525	object::slottype () const
		526	{
		527	if (type == SKILL)
		528	{
		529	if (IS_COMBAT_SKILL (subtype)) return slot_combat;
		530	if (IS_RANGED_SKILL (subtype)) return slot_ranged;
		531	}
		532	else
		533	{
		534	if (slot [body_combat].info) return slot_combat;
		535	if (slot [body_range ].info) return slot_ranged;
		536	}
		537
		538	return slot_none;
		539	}
		540
		541	bool
		542	object::change_weapon (object *ob)
		543	{
		544	if (current_weapon == ob)
		545	return true;
		546
		547	if (chosen_skill)
		548	chosen_skill->flag [FLAG_APPLIED] = false;
		549
		550	current_weapon = ob;
		551	chosen_skill = !ob || ob->type == SKILL ? ob : find_skill_by_name (this, ob->skill);
		552
		553	if (chosen_skill)
		554	chosen_skill->flag [FLAG_APPLIED] = true;
		555
		556	update_stats ();
		557
		558	if (ob)
		559	{
		560	// now check wether any body locations became invalid, in which case
		561	// we cannot apply the weapon at the moment.
		562	for (int i = 0; i < NUM_BODY_LOCATIONS; ++i)
		563	if (slot[i].used < 0)
		564	{
		565	current_weapon = chosen_skill = 0;
		566	update_stats ();
		567
		568	new_draw_info_format (NDI_UNIQUE, 0, this,
		569	"You try to balance all your items at once, "
		570	"but the %s is just too much for your body. "
		571	"[You need to unapply some items first.]", &ob->name);
		572	return false;
		573	}
		574
		575	//new_draw_info_format (NDI_UNIQUE, 0, this, "You switch to your %s.", &ob->name);
		576	}
		577	else
		578	;//new_draw_info_format (NDI_UNIQUE, 0, this, "You unwield your weapons.");
		579
		580	if (ob && !ob->flag [FLAG_APPLIED] && ob->type != SPELL)
		581	{
		582	LOG (llevError | logBacktrace, "%s changed to unapplied weapon %s",
		583	&name, ob->debug_desc ());
		584	return false;
		585	}
		586
		587	return true;
453	}	588	}
454		589
455	/* Zero the key_values on op, decrementing the shared-string	590	/* Zero the key_values on op, decrementing the shared-string
456	* refcounts and freeing the links.	591	* refcounts and freeing the links.
457	*/	592	*/
458	static void	593	static void
459	free_key_values (object *op)	594	free_key_values (object *op)
460	{	595	{
461	for (key_value *i = op->key_values; i != 0;)	596	for (key_value *i = op->key_values; i; )
462	{	597	{
463	key_value *next = i->next;	598	key_value *next = i->next;
464	delete i;	599	delete i;
465		600
466	i = next;	601	i = next;
467	}	602	}
468		603
469	op->key_values = 0;	604	op->key_values = 0;
470	}	605	}
471		606
472	/*	607	object &
473	* copy_to first frees everything allocated by the dst object,	608	object::operator =(const object &src)
474	* and then copies the contents of itself into the second
475	* object, allocating what needs to be allocated. Basically, any
476	* data that is malloc'd needs to be re-malloc/copied. Otherwise,
477	* if the first object is freed, the pointers in the new object
478	* will point at garbage.
479	*/
480	void
481	object::copy_to (object *dst)
482	{	609	{
483	bool is_freed = QUERY_FLAG (dst, FLAG_FREED);	610	bool is_freed = flag [FLAG_FREED];
484	bool is_removed = QUERY_FLAG (dst, FLAG_REMOVED);	611	bool is_removed = flag [FLAG_REMOVED];
485		612
486	*(object_copy *)dst = *this;	613	*(object_copy *)this = src;
487		614
488	if (is_freed)	615	flag [FLAG_FREED] = is_freed;
489	SET_FLAG (dst, FLAG_FREED);	616	flag [FLAG_REMOVED] = is_removed;
490
491	if (is_removed)
492	SET_FLAG (dst, FLAG_REMOVED);
493
494	if (speed < 0)
495	dst->speed_left = speed_left - RANDOM () % 200 / 100.0;
496		617
497	/* Copy over key_values, if any. */	618	/* Copy over key_values, if any. */
498	if (key_values)	619	if (src.key_values)
499	{	620	{
500	key_value *tail = 0;	621	key_value *tail = 0;
501	key_value *i;
502
503	dst->key_values = 0;	622	key_values = 0;
504		623
505	for (i = key_values; i; i = i->next)	624	for (key_value *i = src.key_values; i; i = i->next)
506	{	625	{
507	key_value *new_link = new key_value;	626	key_value *new_link = new key_value;
508		627
509	new_link->next = 0;	628	new_link->next = 0;
510	new_link->key = i->key;	629	new_link->key = i->key;
511	new_link->value = i->value;	630	new_link->value = i->value;
512		631
513	/* Try and be clever here, too. */	632	/* Try and be clever here, too. */
514	if (!dst->key_values)	633	if (!key_values)
515	{	634	{
516	dst->key_values = new_link;	635	key_values = new_link;
517	tail = new_link;	636	tail = new_link;
518	}	637	}
519	else	638	else
520	{	639	{
521	tail->next = new_link;	640	tail->next = new_link;
522	tail = new_link;	641	tail = new_link;
523	}	642	}
524	}	643	}
525	}	644	}
		645	}
526		646
527	update_ob_speed (dst);	647	/*
		648	* copy_to first frees everything allocated by the dst object,
		649	* and then copies the contents of itself into the second
		650	* object, allocating what needs to be allocated. Basically, any
		651	* data that is malloc'd needs to be re-malloc/copied. Otherwise,
		652	* if the first object is freed, the pointers in the new object
		653	* will point at garbage.
		654	*/
		655	void
		656	object::copy_to (object *dst)
		657	{
		658	*dst = *this;
		659
		660	if (speed < 0)
		661	dst->speed_left -= rndm ();
		662
		663	dst->set_speed (dst->speed);
		664	}
		665
		666	void
		667	object::instantiate ()
		668	{
		669	if (!uuid.seq) // HACK
		670	uuid = UUID::gen ();
		671
		672	speed_left = -0.1f;
		673	/* copy the body_info to the body_used - this is only really
		674	* need for monsters, but doesn't hurt to do it for everything.
		675	* by doing so, when a monster is created, it has good starting
		676	* values for the body_used info, so when items are created
		677	* for it, they can be properly equipped.
		678	*/
		679	for (int i = NUM_BODY_LOCATIONS; i--; )
		680	slot[i].used = slot[i].info;
		681
		682	attachable::instantiate ();
528	}	683	}
529		684
530	object *	685	object *
531	object::clone ()	686	object::clone ()
532	{	687	{
…		…
538	/*	693	/*
539	* If an object with the IS_TURNABLE() flag needs to be turned due	694	* If an object with the IS_TURNABLE() flag needs to be turned due
540	* to the closest player being on the other side, this function can	695	* to the closest player being on the other side, this function can
541	* be called to update the face variable, _and_ how it looks on the map.	696	* be called to update the face variable, _and_ how it looks on the map.
542	*/	697	*/
543
544	void	698	void
545	update_turn_face (object *op)	699	update_turn_face (object *op)
546	{	700	{
547	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || op->arch == NULL)	701	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || !op->arch)
548	return;	702	return;
		703
549	SET_ANIMATION (op, op->direction);	704	SET_ANIMATION (op, op->direction);
550	update_object (op, UP_OBJ_FACE);	705	update_object (op, UP_OBJ_FACE);
551	}	706	}
552		707
553	/*	708	/*
554	* Updates the speed of an object. If the speed changes from 0 to another	709	* Updates the speed of an object. If the speed changes from 0 to another
555	* value, or vice versa, then add/remove the object from the active list.	710	* value, or vice versa, then add/remove the object from the active list.
556	* This function needs to be called whenever the speed of an object changes.	711	* This function needs to be called whenever the speed of an object changes.
557	*/	712	*/
558	void	713	void
559	update_ob_speed (object *op)	714	object::set_speed (float speed)
560	{	715	{
561	extern int arch_init;	716	if (flag [FLAG_FREED] && speed)
562
563	/* No reason putting the archetypes objects on the speed list,
564	* since they never really need to be updated.
565	*/
566
567	if (QUERY_FLAG (op, FLAG_FREED) && op->speed)
568	{	717	{
569	LOG (llevError, "Object %s is freed but has speed.\n", &op->name);	718	LOG (llevError, "Object %s is freed but has speed.\n", &name);
570	#ifdef MANY_CORES
571	abort ();
572	#else
573	op->speed = 0;	719	speed = 0;
574	#endif
575	}
576
577	if (arch_init)
578	return;
579
580	if (FABS (op->speed) > MIN_ACTIVE_SPEED)
581	{	720	}
582	/* If already on active list, don't do anything */
583	if (op->active_next || op->active_prev || op == active_objects)
584	return;
585		721
586	/* process_events() expects us to insert the object at the beginning	722	this->speed = speed;
587	* of the list. */
588	op->active_next = active_objects;
589		723
590	if (op->active_next != NULL)	724	if (has_active_speed ())
591	op->active_next->active_prev = op;	725	activate ();
592
593	active_objects = op;
594	}
595	else	726	else
596	{	727	deactivate ();
597	/* If not on the active list, nothing needs to be done */
598	if (!op->active_next && !op->active_prev && op != active_objects)
599	return;
600
601	if (op->active_prev == NULL)
602	{
603	active_objects = op->active_next;
604
605	if (op->active_next != NULL)
606	op->active_next->active_prev = NULL;
607	}
608	else
609	{
610	op->active_prev->active_next = op->active_next;
611
612	if (op->active_next)
613	op->active_next->active_prev = op->active_prev;
614	}
615
616	op->active_next = NULL;
617	op->active_prev = NULL;
618	}
619	}
620
621	/* This function removes object 'op' from the list of active
622	* objects.
623	* This should only be used for style maps or other such
624	* reference maps where you don't want an object that isn't
625	* in play chewing up cpu time getting processed.
626	* The reverse of this is to call update_ob_speed, which
627	* will do the right thing based on the speed of the object.
628	*/
629	void
630	remove_from_active_list (object *op)
631	{
632	/* If not on the active list, nothing needs to be done */
633	if (!op->active_next && !op->active_prev && op != active_objects)
634	return;
635
636	if (op->active_prev == NULL)
637	{
638	active_objects = op->active_next;
639	if (op->active_next != NULL)
640	op->active_next->active_prev = NULL;
641	}
642	else
643	{
644	op->active_prev->active_next = op->active_next;
645	if (op->active_next)
646	op->active_next->active_prev = op->active_prev;
647	}
648	op->active_next = NULL;
649	op->active_prev = NULL;
650	}	728	}
651		729
652	/*	730	/*
653	* update_object() updates the the map.	731	* update_object() updates the the map.
654	* It takes into account invisible objects (and represent squares covered	732	* It takes into account invisible objects (and represent squares covered
…		…
667	* UP_OBJ_FACE: only the objects face has changed.	745	* UP_OBJ_FACE: only the objects face has changed.
668	*/	746	*/
669	void	747	void
670	update_object (object *op, int action)	748	update_object (object *op, int action)
671	{	749	{
672	MoveType move_on, move_off, move_block, move_slow;
673
674	if (op == NULL)	750	if (op == NULL)
675	{	751	{
676	/* this should never happen */	752	/* this should never happen */
677	LOG (llevDebug, "update_object() called for NULL object.\n");	753	LOG (llevDebug, "update_object() called for NULL object.\n");
678	return;	754	return;
…		…
702	return;	778	return;
703	}	779	}
704		780
705	mapspace &m = op->ms ();	781	mapspace &m = op->ms ();
706		782
707	if (m.flags_ & P_NEED_UPDATE)	783	if (!(m.flags_ & P_UPTODATE))
708	/* nop */;	784	/* nop */;
709	else if (action == UP_OBJ_INSERT)	785	else if (action == UP_OBJ_INSERT)
710	{	786	{
711	// this is likely overkill, TODO: revisit (schmorp)	787	// this is likely overkill, TODO: revisit (schmorp)
712	if ((QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(m.flags_ & P_BLOCKSVIEW))	788	if ((QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(m.flags_ & P_BLOCKSVIEW))
…		…
721	/* This isn't perfect, but I don't expect a lot of objects to	797	/* This isn't perfect, but I don't expect a lot of objects to
722	* to have move_allow right now.	798	* to have move_allow right now.
723	*/	799	*/
724	|| ((m.move_block | op->move_block) & ~op->move_allow) != m.move_block	800	|| ((m.move_block | op->move_block) & ~op->move_allow) != m.move_block
725	|| 1) // the above is not strong enough a test to skip updating. los maybe? TODO (Schmorp)	801	|| 1) // the above is not strong enough a test to skip updating. los maybe? TODO (Schmorp)
726	m.flags_ = P_NEED_UPDATE;	802	m.flags_ = 0;
727	}	803	}
728	/* if the object is being removed, we can't make intelligent	804	/* if the object is being removed, we can't make intelligent
729	* decisions, because remove_ob can't really pass the object	805	* decisions, because remove_ob can't really pass the object
730	* that is being removed.	806	* that is being removed.
731	*/	807	*/
732	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)	808	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)
733	m.flags_ = P_NEED_UPDATE;	809	m.flags_ = 0;
734	else if (action == UP_OBJ_FACE)	810	else if (action == UP_OBJ_FACE)
735	/* Nothing to do for that case */ ;	811	/* Nothing to do for that case */ ;
736	else	812	else
737	LOG (llevError, "update_object called with invalid action: %d\n", action);	813	LOG (llevError, "update_object called with invalid action: %d\n", action);
738		814
739	if (op->more)	815	if (op->more)
740	update_object (op->more, action);	816	update_object (op->more, action);
741	}	817	}
742		818
743	object::vector object::objects; // not yet used
744	object *object::first;
745
746	object::object ()	819	object::object ()
747	{	820	{
748	SET_FLAG (this, FLAG_REMOVED);	821	SET_FLAG (this, FLAG_REMOVED);
749		822
750	expmul = 1.0;	823	expmul = 1.0;
751	face = blank_face;	824	face = blank_face;
752	}	825	}
753		826
754	object::~object ()	827	object::~object ()
755	{	828	{
		829	unlink ();
		830
756	free_key_values (this);	831	free_key_values (this);
757	}	832	}
758		833
		834	static int object_count;
		835
759	void object::link ()	836	void object::link ()
760	{	837	{
		838	assert (!index);//D
		839	uuid = UUID::gen ();
761	count = ++ob_count;	840	count = ++object_count;
762	uuid = gen_uuid ();
763		841
764	prev = 0;	842	refcnt_inc ();
765	next = object::first;	843	objects.insert (this);
766
767	if (object::first)
768	object::first->prev = this;
769
770	object::first = this;
771	}	844	}
772		845
773	void object::unlink ()	846	void object::unlink ()
774	{	847	{
775	if (this == object::first)	848	if (!index)
776	object::first = next;
777
778	/* Remove this object from the list of used objects */
779	if (prev) prev->next = next;
780	if (next) next->prev = prev;
781
782	prev = 0;
783	next = 0;
784	}
785
786	object *object::create ()
787	{
788	object *op = new object;
789	op->link ();
790	return op;	849	return;
791	}
792		850
793	/*	851	objects.erase (this);
794	* free_object() frees everything allocated by an object, removes	852	refcnt_dec ();
795	* it from the list of used objects, and puts it on the list of	853	}
796	* free objects. The IS_FREED() flag is set in the object.	854
797	* The object must have been removed by remove_ob() first for
798	* this function to succeed.
799	*
800	* If destroy_inventory is set, free inventory as well. Else drop items in
801	* inventory to the ground.
802	*/
803	void	855	void
804	object::do_destroy ()	856	object::activate ()
805	{	857	{
806	attachable::do_destroy ();	858	/* If already on active list, don't do anything */
807		859	if (active)
808	if (flag [FLAG_IS_LINKED])
809	remove_button_link (this);
810
811	if (flag [FLAG_FRIENDLY])
812	remove_friendly_object (this);
813
814	if (!flag [FLAG_REMOVED])
815	remove ();
816
817	if (flag [FLAG_FREED])
818	return;	860	return;
819		861
820	flag [FLAG_FREED] = 1;	862	if (has_active_speed ())
		863	actives.insert (this);
		864	}
821		865
822	// hack to ensure that freed objects still have a valid map	866	void
823	{	867	object::activate_recursive ()
824	static maptile *freed_map; // freed objects are moved here to avoid crashes	868	{
		869	activate ();
825		870
826	if (!freed_map)	871	for (object *op = inv; op; op = op->below)
		872	op->activate_recursive ();
		873	}
		874
		875	/* This function removes object 'op' from the list of active
		876	* objects.
		877	* This should only be used for style maps or other such
		878	* reference maps where you don't want an object that isn't
		879	* in play chewing up cpu time getting processed.
		880	* The reverse of this is to call update_ob_speed, which
		881	* will do the right thing based on the speed of the object.
		882	*/
		883	void
		884	object::deactivate ()
		885	{
		886	/* If not on the active list, nothing needs to be done */
		887	if (!active)
		888	return;
		889
		890	actives.erase (this);
		891	}
		892
		893	void
		894	object::deactivate_recursive ()
		895	{
		896	for (object *op = inv; op; op = op->below)
		897	op->deactivate_recursive ();
		898
		899	deactivate ();
		900	}
		901
		902	void
		903	object::set_flag_inv (int flag, int value)
		904	{
		905	for (object *op = inv; op; op = op->below)
827	{	906	{
828	freed_map = new maptile;	907	op->flag [flag] = value;
829		908	op->set_flag_inv (flag, value);
830	freed_map->name = "/internal/freed_objects_map";
831	freed_map->width = 3;
832	freed_map->height = 3;
833
834	freed_map->allocate ();
835	}	909	}
836
837	map = freed_map;
838	x = 1;
839	y = 1;
840	}
841
842	more = 0;
843	head = 0;
844	inv = 0;
845
846	// clear those pointers that likely might have circular references to us
847	owner = 0;
848	enemy = 0;
849	attacked_by = 0;
850
851	// only relevant for players(?), but make sure of it anyways
852	contr = 0;
853
854	/* Remove object from the active list */
855	speed = 0;
856	update_ob_speed (this);
857
858	unlink ();
859	}	910	}
860		911
861	/*	912	/*
862	* Remove and free all objects in the inventory of the given object.	913	* Remove and free all objects in the inventory of the given object.
863	* object.c ?	914	* object.c ?
864	*/	915	*/
865	void	916	void
866	object::destroy_inv (bool drop_to_ground)	917	object::destroy_inv (bool drop_to_ground)
867	{	918	{
		919	// need to check first, because the checks below might segfault
		920	// as we might be on an invalid mapspace and crossfire code
		921	// is too buggy to ensure that the inventory is empty.
		922	// corollary: if you create arrows etc. with stuff in its inventory,
		923	// cf will crash below with off-map x and y
868	if (!inv)	924	if (!inv)
869	return;	925	return;
870		926
871	/* Only if the space blocks everything do we not process -	927	/* Only if the space blocks everything do we not process -
872	* if some form of movement is allowed, let objects	928	* if some form of movement is allowed, let objects
873	* drop on that space.	929	* drop on that space.
874	*/	930	*/
875	if (!drop_to_ground || !map || map->in_memory != MAP_IN_MEMORY || GET_MAP_MOVE_BLOCK (map, x, y) == MOVE_ALL)	931	if (!drop_to_ground
		932	|| !map
		933	|| map->in_memory != MAP_ACTIVE
		934	|| map->nodrop
		935	|| ms ().move_block == MOVE_ALL)
876	{	936	{
877	while (inv)	937	while (inv)
878	{	938	{
879	inv->destroy_inv (drop_to_ground);	939	inv->destroy_inv (false);
880	inv->destroy ();	940	inv->destroy ();
881	}	941	}
882	}	942	}
883	else	943	else
884	{ /* Put objects in inventory onto this space */	944	{ /* Put objects in inventory onto this space */
…		…
888		948
889	if (op->flag [FLAG_STARTEQUIP]	949	if (op->flag [FLAG_STARTEQUIP]
890	|| op->flag [FLAG_NO_DROP]	950	|| op->flag [FLAG_NO_DROP]
891	|| op->type == RUNE	951	|| op->type == RUNE
892	|| op->type == TRAP	952	|| op->type == TRAP
893	|| op->flag [FLAG_IS_A_TEMPLATE])	953	|| op->flag [FLAG_IS_A_TEMPLATE]
		954	|| op->flag [FLAG_DESTROY_ON_DEATH])
894	op->destroy ();	955	op->destroy (true);
895	else	956	else
896	{	957	map->insert (op, x, y);
897	op->remove ();
898	op->x = x;
899	op->y = y;
900	insert_ob_in_map (op, map, 0, 0); /* Insert in same map as the envir */
901	}
902	}	958	}
903	}	959	}
		960	}
		961
		962	object *object::create ()
		963	{
		964	object *op = new object;
		965	op->link ();
		966	return op;
		967	}
		968
		969	void
		970	object::do_destroy ()
		971	{
		972	if (flag [FLAG_IS_LINKED])
		973	remove_button_link (this);
		974
		975	if (flag [FLAG_FRIENDLY])
		976	remove_friendly_object (this);
		977
		978	remove ();
		979
		980	attachable::do_destroy ();
		981
		982	deactivate ();
		983	unlink ();
		984
		985	flag [FLAG_FREED] = 1;
		986
		987	// hack to ensure that freed objects still have a valid map
		988	{
		989	static maptile *freed_map; // freed objects are moved here to avoid crashes
		990
		991	if (!freed_map)
		992	{
		993	freed_map = new maptile;
		994
		995	freed_map->path = "<freed objects map>";
		996	freed_map->name = "/internal/freed_objects_map";
		997	freed_map->width = 3;
		998	freed_map->height = 3;
		999	freed_map->nodrop = 1;
		1000
		1001	freed_map->alloc ();
		1002	freed_map->in_memory = MAP_ACTIVE;
		1003	}
		1004
		1005	map = freed_map;
		1006	x = 1;
		1007	y = 1;
		1008	}
		1009
		1010	if (more)
		1011	{
		1012	more->destroy ();
		1013	more = 0;
		1014	}
		1015
		1016	head = 0;
		1017
		1018	// clear those pointers that likely might cause circular references
		1019	owner = 0;
		1020	enemy = 0;
		1021	attacked_by = 0;
		1022	current_weapon = 0;
904	}	1023	}
905		1024
906	void	1025	void
907	object::destroy (bool destroy_inventory)	1026	object::destroy (bool destroy_inventory)
908	{	1027	{
909	if (destroyed ())	1028	if (destroyed ())
910	return;	1029	return;
911		1030
912	if (more)
913	{
914	//TODO: non-head objects must not have inventory
915	more->destroy (destroy_inventory);	1031	destroy_inv (!destroy_inventory);
916	more = 0;
917	}
918		1032
919	if (destroy_inventory)	1033	if (is_head ())
920	destroy_inv (true);	1034	if (sound_destroy)
		1035	play_sound (sound_destroy);
		1036	else if (flag [FLAG_MONSTER])
		1037	play_sound (sound_find ("monster_destroy")); // quick hack, too lazy to create a generic mechanism
921		1038
922	attachable::destroy ();	1039	attachable::destroy ();
923	}
924
925	/*
926	* sub_weight() recursively (outwards) subtracts a number from the
927	* weight of an object (and what is carried by it's environment(s)).
928	*/
929	void
930	sub_weight (object *op, signed long weight)
931	{
932	while (op != NULL)
933	{
934	if (op->type == CONTAINER)
935	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
936
937	op->carrying -= weight;
938	op = op->env;
939	}
940	}	1040	}
941		1041
942	/* op->remove ():	1042	/* op->remove ():
943	* This function removes the object op from the linked list of objects	1043	* This function removes the object op from the linked list of objects
944	* which it is currently tied to. When this function is done, the	1044	* which it is currently tied to. When this function is done, the
945	* object will have no environment. If the object previously had an	1045	* object will have no environment. If the object previously had an
946	* environment, the x and y coordinates will be updated to	1046	* environment, the x and y coordinates will be updated to
947	* the previous environment.	1047	* the previous environment.
948	* Beware: This function is called from the editor as well!
949	*/	1048	*/
950	void	1049	void
951	object::remove ()	1050	object::do_remove ()
952	{	1051	{
953	object *tmp, *last = 0;	1052	object *tmp, *last = 0;
954	object *otmp;	1053	object *otmp;
955		1054
956	if (QUERY_FLAG (this, FLAG_REMOVED))	1055	if (flag [FLAG_REMOVED])
957	return;	1056	return;
958		1057
959	SET_FLAG (this, FLAG_REMOVED);
960	INVOKE_OBJECT (REMOVE, this);	1058	INVOKE_OBJECT (REMOVE, this);
		1059
		1060	if (object *pl = visible_to ())
		1061	esrv_del_item (pl->contr, count);
		1062
		1063	flag [FLAG_REMOVED] = true;
961		1064
962	if (more)	1065	if (more)
963	more->remove ();	1066	more->remove ();
964		1067
965	/*	1068	/*
966	* In this case, the object to be removed is in someones	1069	* In this case, the object to be removed is in someones
967	* inventory.	1070	* inventory.
968	*/	1071	*/
969	if (env)	1072	if (env)
970	{	1073	{
		1074	adjust_weight (env, -total_weight ());
		1075
		1076	*(above ? &above->below : &env->inv) = below;
		1077
971	if (nrof)	1078	if (below)
972	sub_weight (env, weight * nrof);	1079	below->above = above;
973	else	1080
974	sub_weight (env, weight + carrying);	1081	/* we set up values so that it could be inserted into
		1082	* the map, but we don't actually do that - it is up
		1083	* to the caller to decide what we want to do.
		1084	*/
		1085	map = env->map;
		1086	x = env->x;
		1087	y = env->y;
		1088	above = 0;
		1089	below = 0;
		1090	env = 0;
975		1091
976	/* NO_FIX_PLAYER is set when a great many changes are being	1092	/* NO_FIX_PLAYER is set when a great many changes are being
977	* made to players inventory. If set, avoiding the call	1093	* made to players inventory. If set, avoiding the call
978	* to save cpu time.	1094	* to save cpu time.
979	*/	1095	*/
980	if ((otmp = in_player ()) && otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))	1096	if ((otmp = in_player ()) && otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
981	otmp->update_stats ();	1097	otmp->update_stats ();
982
983	if (above != NULL)
984	above->below = below;
985	else
986	env->inv = below;
987
988	if (below != NULL)
989	below->above = above;
990
991	/* we set up values so that it could be inserted into
992	* the map, but we don't actually do that - it is up
993	* to the caller to decide what we want to do.
994	*/
995	x = env->x, y = env->y;
996	map = env->map;
997	above = 0, below = 0;
998	env = 0;
999	}	1098	}
1000	else if (map)	1099	else if (map)
1001	{	1100	{
1002	/* Re did the following section of code - it looks like it had	1101	if (type == PLAYER)
1003	* lots of logic for things we no longer care about
1004	*/	1102	{
		1103	// leaving a spot always closes any open container on the ground
		1104	if (container && !container->env)
		1105	// this causes spurious floorbox updates, but it ensures
		1106	// that the CLOSE event is being sent.
		1107	close_container ();
		1108
		1109	--map->players;
		1110	map->touch ();
		1111	}
		1112
		1113	map->dirty = true;
		1114	mapspace &ms = this->ms ();
1005		1115
1006	/* link the object above us */	1116	/* link the object above us */
1007	if (above)	1117	if (above)
1008	above->below = below;	1118	above->below = below;
1009	else	1119	else
1010	map->at (x, y).top = below; /* we were top, set new top */	1120	ms.top = below; /* we were top, set new top */
1011		1121
1012	/* Relink the object below us, if there is one */	1122	/* Relink the object below us, if there is one */
1013	if (below)	1123	if (below)
1014	below->above = above;	1124	below->above = above;
1015	else	1125	else
…		…
1017	/* Nothing below, which means we need to relink map object for this space	1127	/* Nothing below, which means we need to relink map object for this space
1018	* use translated coordinates in case some oddness with map tiling is	1128	* use translated coordinates in case some oddness with map tiling is
1019	* evident	1129	* evident
1020	*/	1130	*/
1021	if (GET_MAP_OB (map, x, y) != this)	1131	if (GET_MAP_OB (map, x, y) != this)
1022	{
1023	char *dump = dump_object (this);
1024	LOG (llevError,
1025	"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);	1132	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 ());
1026	free (dump);
1027	dump = dump_object (GET_MAP_OB (map, x, y));
1028	LOG (llevError, "%s\n", dump);
1029	free (dump);
1030	}
1031		1133
1032	map->at (x, y).bottom = above; /* goes on above it. */	1134	ms.bot = above; /* goes on above it. */
1033	}	1135	}
1034		1136
1035	above = 0;	1137	above = 0;
1036	below = 0;	1138	below = 0;
1037		1139
1038	if (map->in_memory == MAP_SAVING)	1140	if (map->in_memory == MAP_SAVING)
1039	return;	1141	return;
1040		1142
1041	int check_walk_off = !flag [FLAG_NO_APPLY];	1143	int check_walk_off = !flag [FLAG_NO_APPLY];
1042		1144
		1145	if (object *pl = ms.player ())
		1146	{
		1147	if (pl->container == this)
		1148	/* If a container that the player is currently using somehow gets
		1149	* removed (most likely destroyed), update the player view
		1150	* appropriately.
		1151	*/
		1152	pl->close_container ();
		1153
		1154	esrv_del_item (pl, count);
		1155	}
		1156
1043	for (tmp = GET_MAP_OB (map, x, y); tmp; tmp = tmp->above)	1157	for (tmp = ms.bot; tmp; tmp = tmp->above)
1044	{	1158	{
1045	/* 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
1046	* being removed.	1160	* being removed.
1047	*/	1161	*/
1048		1162
1049	if (tmp->type == PLAYER && tmp != this)
1050	{
1051	/* If a container that the player is currently using somehow gets
1052	* removed (most likely destroyed), update the player view
1053	* appropriately.
1054	*/
1055	if (tmp->container == this)
1056	{
1057	flag [FLAG_APPLIED] = 0;
1058	tmp->container = 0;
1059	}
1060
1061	if (tmp->contr->ns)
1062	tmp->contr->ns->floorbox_update ();
1063	}
1064
1065	/* See if player moving off should effect something */	1163	/* See if object moving off should effect something */
1066	if (check_walk_off	1164	if (check_walk_off
1067	&& ((move_type & tmp->move_off)	1165	&& ((move_type & tmp->move_off)
1068	&& (move_type & ~tmp->move_off & ~tmp->move_block) == 0))	1166	&& (move_type & ~tmp->move_off & ~tmp->move_block) == 0))
1069	{	1167	{
1070	move_apply (tmp, this, 0);	1168	move_apply (tmp, this, 0);
1071		1169
1072	if (destroyed ())	1170	if (destroyed ())
1073	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 ());
1074	}	1172	}
1075		1173
1076	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */
1077
1078	if (tmp->above == tmp)
1079	tmp->above = 0;
1080
1081	last = tmp;	1174	last = tmp;
1082	}	1175	}
1083		1176
1084	/* 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?
1085	if (!last)	1179	if (!last)
1086	map->at (x, y).flags_ = P_NEED_UPDATE;	1180	map->at (x, y).flags_ = 0;
1087	else	1181	else
1088	update_object (last, UP_OBJ_REMOVE);	1182	update_object (last, UP_OBJ_REMOVE);
1089		1183
1090	if (flag [FLAG_BLOCKSVIEW] || glow_radius)	1184	if (flag [FLAG_BLOCKSVIEW] || glow_radius)
1091	update_all_los (map, x, y);	1185	update_all_los (map, x, y);
…		…
1104	merge_ob (object *op, object *top)	1198	merge_ob (object *op, object *top)
1105	{	1199	{
1106	if (!op->nrof)	1200	if (!op->nrof)
1107	return 0;	1201	return 0;
1108		1202
1109	if (top)	1203	if (!top)
1110	for (top = op; top && top->above; top = top->above)	1204	for (top = op; top && top->above; top = top->above)
1111	;	1205	;
1112		1206
1113	for (; top; top = top->below)	1207	for (; top; top = top->below)
1114	{
1115	if (top == op)
1116	continue;
1117
1118	if (object::can_merge (op, top))	1208	if (object::can_merge (op, top))
1119	{	1209	{
1120	top->nrof += op->nrof;	1210	top->nrof += op->nrof;
1121		1211
1122	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/	1212	if (object *pl = top->visible_to ())
1123	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
1124	op->destroy ();	1218	op->destroy (1);
		1219
1125	return top;	1220	return top;
1126	}	1221	}
1127	}
1128		1222
1129	return 0;	1223	return 0;
1130	}	1224	}
1131		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
1132	/*	1249	/*
1133	* 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
1134	* job preparing multi-part monsters	1251	* job preparing multi-part monsters.
1135	*/	1252	*/
1136	object *	1253	object *
1137	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)
1138	{	1255	{
1139	object *tmp;
1140
1141	if (op->head)
1142	op = op->head;
1143
1144	for (tmp = op; tmp; tmp = tmp->more)	1256	for (object *tmp = op->head_ (); tmp; tmp = tmp->more)
1145	{	1257	{
1146	tmp->x = x + tmp->arch->clone.x;	1258	tmp->x = x + tmp->arch->x;
1147	tmp->y = y + tmp->arch->clone.y;	1259	tmp->y = y + tmp->arch->y;
1148	}	1260	}
1149		1261
1150	return insert_ob_in_map (op, m, originator, flag);	1262	return insert_ob_in_map (op, m, originator, flag);
1151	}	1263	}
1152		1264
…		…
1171	* just 'op' otherwise	1283	* just 'op' otherwise
1172	*/	1284	*/
1173	object *	1285	object *
1174	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)
1175	{	1287	{
		1288	assert (!op->flag [FLAG_FREED]);
		1289
1176	object *tmp, *top, *floor = NULL;	1290	object *top, *floor = NULL;
1177	sint16 x, y;
1178		1291
1179	if (QUERY_FLAG (op, FLAG_FREED))	1292	op->remove ();
1180	{
1181	LOG (llevError, "Trying to insert freed object!\n");
1182	return NULL;
1183	}
1184
1185	if (m == NULL)
1186	{
1187	char *dump = dump_object (op);
1188	LOG (llevError, "Trying to insert in null-map!\n%s\n", dump);
1189	free (dump);
1190	return op;
1191	}
1192
1193	if (out_of_map (m, op->x, op->y))
1194	{
1195	char *dump = dump_object (op);
1196	LOG (llevError, "Trying to insert object outside the map.\n%s\n", dump);
1197	#ifdef MANY_CORES
1198	/* Better to catch this here, as otherwise the next use of this object
1199	* is likely to cause a crash. Better to find out where it is getting
1200	* improperly inserted.
1201	*/
1202	abort ();
1203	#endif
1204	free (dump);
1205	return op;
1206	}
1207
1208	if (!QUERY_FLAG (op, FLAG_REMOVED))
1209	{
1210	char *dump = dump_object (op);
1211	LOG (llevError, "Trying to insert (map) inserted object.\n%s\n", dump);
1212	free (dump);
1213	return op;
1214	}
1215
1216	if (op->more)
1217	{
1218	/* The part may be on a different map. */
1219
1220	object *more = op->more;
1221
1222	/* We really need the caller to normalize coordinates - if
1223	* we set the map, that doesn't work if the location is within
1224	* a map and this is straddling an edge. So only if coordinate
1225	* is clear wrong do we normalize it.
1226	*/
1227	if (OUT_OF_REAL_MAP (more->map, more->x, more->y))
1228	more->map = get_map_from_coord (m, &more->x, &more->y);
1229	else if (!more->map)
1230	{
1231	/* For backwards compatibility - when not dealing with tiled maps,
1232	* more->map should always point to the parent.
1233	*/
1234	more->map = m;
1235	}
1236
1237	if (insert_ob_in_map (more, more->map, originator, flag) == NULL)
1238	{
1239	if (!op->head)
1240	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");
1241
1242	return 0;
1243	}
1244	}
1245
1246	CLEAR_FLAG (op, FLAG_REMOVED);
1247		1293
1248	/* Ideally, the caller figures this out. However, it complicates a lot	1294	/* Ideally, the caller figures this out. However, it complicates a lot
1249	* of areas of callers (eg, anything that uses find_free_spot would now	1295	* of areas of callers (eg, anything that uses find_free_spot would now
1250	* need extra work	1296	* need extra work
1251	*/	1297	*/
1252	op->map = get_map_from_coord (m, &op->x, &op->y);	1298	if (!xy_normalise (m, op->x, op->y))
1253	x = op->x;	1299	{
1254	y = op->y;	1300	op->destroy (1);
		1301	return 0;
		1302	}
		1303
		1304	if (object *more = op->more)
		1305	if (!insert_ob_in_map (more, m, originator, flag))
		1306	return 0;
		1307
		1308	CLEAR_FLAG (op, FLAG_REMOVED);
		1309
		1310	op->map = m;
		1311	mapspace &ms = op->ms ();
1255		1312
1256	/* this has to be done after we translate the coordinates.	1313	/* this has to be done after we translate the coordinates.
1257	*/	1314	*/
1258	if (op->nrof && !(flag & INS_NO_MERGE))	1315	if (op->nrof && !(flag & INS_NO_MERGE))
1259	for (tmp = GET_MAP_OB (op->map, x, y); tmp != NULL; tmp = tmp->above)	1316	for (object *tmp = ms.bot; tmp; tmp = tmp->above)
1260	if (object::can_merge (op, tmp))	1317	if (object::can_merge (op, tmp))
1261	{	1318	{
1262	op->nrof += tmp->nrof;	1319	op->nrof += tmp->nrof;
1263	tmp->destroy ();	1320	tmp->destroy (1);
1264	}	1321	}
1265		1322
1266	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */	1323	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */
1267	CLEAR_FLAG (op, FLAG_INV_LOCKED);	1324	CLEAR_FLAG (op, FLAG_INV_LOCKED);
1268		1325
…		…
1281	op->below = originator->below;	1338	op->below = originator->below;
1282		1339
1283	if (op->below)	1340	if (op->below)
1284	op->below->above = op;	1341	op->below->above = op;
1285	else	1342	else
1286	op->ms ().bottom = op;	1343	ms.bot = op;
1287		1344
1288	/* since *below* originator, no need to update top */	1345	/* since *below* originator, no need to update top */
1289	originator->below = op;	1346	originator->below = op;
1290	}	1347	}
1291	else	1348	else
1292	{	1349	{
		1350	top = ms.bot;
		1351
1293	/* If there are other objects, then */	1352	/* If there are other objects, then */
1294	if ((!(flag & INS_MAP_LOAD)) && ((top = GET_MAP_OB (op->map, op->x, op->y)) != NULL))	1353	if (top)
1295	{	1354	{
1296	object *last = NULL;	1355	object *last = 0;
1297		1356
1298	/*	1357	/*
1299	* If there are multiple objects on this space, we do some trickier handling.	1358	* If there are multiple objects on this space, we do some trickier handling.
1300	* We've already dealt with merging if appropriate.	1359	* We've already dealt with merging if appropriate.
1301	* Generally, we want to put the new object on top. But if	1360	* Generally, we want to put the new object on top. But if
…		…
1305	* once we get to them. This reduces the need to traverse over all of	1364	* once we get to them. This reduces the need to traverse over all of
1306	* them when adding another one - this saves quite a bit of cpu time	1365	* them when adding another one - this saves quite a bit of cpu time
1307	* when lots of spells are cast in one area. Currently, it is presumed	1366	* when lots of spells are cast in one area. Currently, it is presumed
1308	* that flying non pickable objects are spell objects.	1367	* that flying non pickable objects are spell objects.
1309	*/	1368	*/
1310		1369	for (top = ms.bot; top; top = top->above)
1311	while (top != NULL)
1312	{	1370	{
1313	if (QUERY_FLAG (top, FLAG_IS_FLOOR) || QUERY_FLAG (top, FLAG_OVERLAY_FLOOR))	1371	if (QUERY_FLAG (top, FLAG_IS_FLOOR) || QUERY_FLAG (top, FLAG_OVERLAY_FLOOR))
1314	floor = top;	1372	floor = top;
1315		1373
1316	if (QUERY_FLAG (top, FLAG_NO_PICK) && (top->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (top, FLAG_IS_FLOOR))	1374	if (QUERY_FLAG (top, FLAG_NO_PICK) && (top->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (top, FLAG_IS_FLOOR))
…		…
1319	top = top->below;	1377	top = top->below;
1320	break;	1378	break;
1321	}	1379	}
1322		1380
1323	last = top;	1381	last = top;
1324	top = top->above;
1325	}	1382	}
1326		1383
1327	/* Don't want top to be NULL, so set it to the last valid object */	1384	/* Don't want top to be NULL, so set it to the last valid object */
1328	top = last;	1385	top = last;
1329		1386
…		…
1331	* looks like instead of lots of conditions here.	1388	* looks like instead of lots of conditions here.
1332	* makes things faster, and effectively the same result.	1389	* makes things faster, and effectively the same result.
1333	*/	1390	*/
1334		1391
1335	/* Have object 'fall below' other objects that block view.	1392	/* Have object 'fall below' other objects that block view.
1336	* Unless those objects are exits, type 66	1393	* Unless those objects are exits.
1337	* If INS_ON_TOP is used, don't do this processing	1394	* If INS_ON_TOP is used, don't do this processing
1338	* Need to find the object that in fact blocks view, otherwise	1395	* Need to find the object that in fact blocks view, otherwise
1339	* stacking is a bit odd.	1396	* stacking is a bit odd.
1340	*/	1397	*/
1341	if (!(flag & INS_ON_TOP) &&	1398	if (!(flag & INS_ON_TOP)
1342	(get_map_flags (op->map, 0, op->x, op->y, 0, 0) & P_BLOCKSVIEW) && (op->face && !op->face->visibility))	1399	&& ms.flags () & P_BLOCKSVIEW
		1400	&& (op->face && !faces [op->face].visibility))
1343	{	1401	{
1344	for (last = top; last != floor; last = last->below)	1402	for (last = top; last != floor; last = last->below)
1345	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))	1403	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))
1346	break;	1404	break;
		1405
1347	/* Check to see if we found the object that blocks view,	1406	/* Check to see if we found the object that blocks view,
1348	* and make sure we have a below pointer for it so that	1407	* and make sure we have a below pointer for it so that
1349	* we can get inserted below this one, which requires we	1408	* we can get inserted below this one, which requires we
1350	* set top to the object below us.	1409	* set top to the object below us.
1351	*/	1410	*/
1352	if (last && last->below && last != floor)	1411	if (last && last->below && last != floor)
1353	top = last->below;	1412	top = last->below;
1354	}	1413	}
1355	} /* If objects on this space */	1414	} /* If objects on this space */
1356		1415
1357	if (flag & INS_MAP_LOAD)
1358	top = GET_MAP_TOP (op->map, op->x, op->y);
1359
1360	if (flag & INS_ABOVE_FLOOR_ONLY)	1416	if (flag & INS_ABOVE_FLOOR_ONLY)
1361	top = floor;	1417	top = floor;
1362		1418
1363	/* Top is the object that our object (op) is going to get inserted above.	1419	/* Top is the object that our object (op) is going to get inserted above.
1364	*/	1420	*/
1365		1421
1366	/* First object on this space */	1422	/* First object on this space */
1367	if (!top)	1423	if (!top)
1368	{	1424	{
1369	op->above = GET_MAP_OB (op->map, op->x, op->y);	1425	op->above = ms.bot;
1370		1426
1371	if (op->above)	1427	if (op->above)
1372	op->above->below = op;	1428	op->above->below = op;
1373		1429
1374	op->below = NULL;	1430	op->below = 0;
1375	op->ms ().bottom = op;	1431	ms.bot = op;
1376	}	1432	}
1377	else	1433	else
1378	{ /* get inserted into the stack above top */	1434	{ /* get inserted into the stack above top */
1379	op->above = top->above;	1435	op->above = top->above;
1380		1436
…		…
1383		1439
1384	op->below = top;	1440	op->below = top;
1385	top->above = op;	1441	top->above = op;
1386	}	1442	}
1387		1443
1388	if (op->above == NULL)	1444	if (!op->above)
1389	op->ms ().top = op;	1445	ms.top = op;
1390	} /* else not INS_BELOW_ORIGINATOR */	1446	} /* else not INS_BELOW_ORIGINATOR */
1391		1447
1392	if (op->type == PLAYER)	1448	if (op->type == PLAYER)
		1449	{
1393	op->contr->do_los = 1;	1450	op->contr->do_los = 1;
		1451	++op->map->players;
		1452	op->map->touch ();
		1453	}
1394		1454
1395	/* If we have a floor, we know the player, if any, will be above	1455	op->map->dirty = true;
1396	* it, so save a few ticks and start from there.	1456
1397	*/
1398	if (!(flag & INS_MAP_LOAD))
1399	if (object *pl = op->ms ().player ())	1457	if (object *pl = ms.player ())
1400	if (pl->contr->ns)	1458	esrv_send_item (pl, op);
1401	pl->contr->ns->floorbox_update ();
1402		1459
1403	/* If this object glows, it may affect lighting conditions that are	1460	/* If this object glows, it may affect lighting conditions that are
1404	* visible to others on this map. But update_all_los is really	1461	* visible to others on this map. But update_all_los is really
1405	* an inefficient way to do this, as it means los for all players	1462	* an inefficient way to do this, as it means los for all players
1406	* on the map will get recalculated. The players could very well	1463	* on the map will get recalculated. The players could very well
1407	* be far away from this change and not affected in any way -	1464	* be far away from this change and not affected in any way -
1408	* this should get redone to only look for players within range,	1465	* this should get redone to only look for players within range,
1409	* or just updating the P_NEED_UPDATE for spaces within this area	1466	* or just updating the P_UPTODATE for spaces within this area
1410	* of effect may be sufficient.	1467	* of effect may be sufficient.
1411	*/	1468	*/
1412	if (MAP_DARKNESS (op->map) && (op->glow_radius != 0))	1469	if (op->map->darkness && (op->glow_radius != 0))
1413	update_all_los (op->map, op->x, op->y);	1470	update_all_los (op->map, op->x, op->y);
1414		1471
1415	/* updates flags (blocked, alive, no magic, etc) for this map space */	1472	/* updates flags (blocked, alive, no magic, etc) for this map space */
1416	update_object (op, UP_OBJ_INSERT);	1473	update_object (op, UP_OBJ_INSERT);
1417		1474
…		…
1425	* blocked() and wall() work properly), and these flags are updated by	1482	* blocked() and wall() work properly), and these flags are updated by
1426	* update_object().	1483	* update_object().
1427	*/	1484	*/
1428		1485
1429	/* if this is not the head or flag has been passed, don't check walk on status */	1486	/* if this is not the head or flag has been passed, don't check walk on status */
1430	if (!(flag & INS_NO_WALK_ON) && !op->head)	1487	if (!(flag & INS_NO_WALK_ON) && op->head_ () == op)
1431	{	1488	{
1432	if (check_move_on (op, originator))	1489	if (check_move_on (op, originator))
1433	return 0;	1490	return 0;
1434		1491
1435	/* If we are a multi part object, lets work our way through the check	1492	/* If we are a multi part object, lets work our way through the check
1436	* walk on's.	1493	* walk on's.
1437	*/	1494	*/
1438	for (tmp = op->more; tmp != NULL; tmp = tmp->more)	1495	for (object *tmp = op->more; tmp; tmp = tmp->more)
1439	if (check_move_on (tmp, originator))	1496	if (check_move_on (tmp, originator))
1440	return 0;	1497	return 0;
1441	}	1498	}
1442		1499
1443	return op;	1500	return op;
…		…
1448	* op is the object to insert it under: supplies x and the map.	1505	* op is the object to insert it under: supplies x and the map.
1449	*/	1506	*/
1450	void	1507	void
1451	replace_insert_ob_in_map (const char *arch_string, object *op)	1508	replace_insert_ob_in_map (const char *arch_string, object *op)
1452	{	1509	{
1453	object *tmp, *tmp1;
1454
1455	/* first search for itself and remove any old instances */	1510	/* first search for itself and remove any old instances */
1456		1511
1457	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)	1512	for (object *tmp = op->ms ().bot; tmp; tmp = tmp->above)
1458	if (!strcmp (tmp->arch->name, arch_string)) /* same archetype */	1513	if (!strcmp (tmp->arch->archname, arch_string)) /* same archetype */
1459	tmp->destroy ();	1514	tmp->destroy (1);
1460		1515
1461	tmp1 = arch_to_object (archetype::find (arch_string));	1516	object *tmp = arch_to_object (archetype::find (arch_string));
1462		1517
1463	tmp1->x = op->x;	1518	tmp->x = op->x;
1464	tmp1->y = op->y;	1519	tmp->y = op->y;
		1520
1465	insert_ob_in_map (tmp1, op->map, op, 0);	1521	insert_ob_in_map (tmp, op->map, op, 0);
1466	}	1522	}
1467
1468	/*
1469	* get_split_ob(ob,nr) splits up ob into two parts. The part which
1470	* is returned contains nr objects, and the remaining parts contains
1471	* the rest (or is removed and freed if that number is 0).
1472	* On failure, NULL is returned, and the reason put into the
1473	* global static errmsg array.
1474	*/
1475		1523
1476	object *	1524	object *
1477	get_split_ob (object *orig_ob, uint32 nr)	1525	object::insert_at (object *where, object *originator, int flags)
1478	{	1526	{
1479	object *newob;	1527	if (where->env)
1480	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);	1528	return where->env->insert (this);
1481		1529	else
1482	if (orig_ob->nrof < nr)	1530	return where->map->insert (this, where->x, where->y, originator, flags);
1483	{
1484	sprintf (errmsg, "There are only %d %ss.", orig_ob->nrof ? orig_ob->nrof : 1, &orig_ob->name);
1485	return NULL;
1486	}
1487
1488	newob = object_create_clone (orig_ob);
1489
1490	if ((orig_ob->nrof -= nr) < 1)
1491	orig_ob->destroy (1);
1492	else if (!is_removed)
1493	{
1494	if (orig_ob->env != NULL)
1495	sub_weight (orig_ob->env, orig_ob->weight * nr);
1496	if (orig_ob->env == NULL && orig_ob->map->in_memory != MAP_IN_MEMORY)
1497	{
1498	strcpy (errmsg, "Tried to split object whose map is not in memory.");
1499	LOG (llevDebug, "Error, Tried to split object whose map is not in memory.\n");
1500	return NULL;
1501	}
1502	}
1503
1504	newob->nrof = nr;
1505
1506	return newob;
1507	}	1531	}
1508		1532
1509	/*	1533	/*
1510	* decrease_ob_nr(object, number) decreases a specified number from	1534	* decrease(object, number) decreases a specified number from
1511	* the amount of an object. If the amount reaches 0, the object	1535	* the amount of an object. If the amount reaches 0, the object
1512	* is subsequently removed and freed.	1536	* is subsequently removed and freed.
1513	*	1537	*
1514	* Return value: 'op' if something is left, NULL if the amount reached 0	1538	* Return value: 'op' if something is left, NULL if the amount reached 0
1515	*/	1539	*/
		1540	bool
		1541	object::decrease (sint32 nr)
		1542	{
		1543	if (!nr)
		1544	return true;
1516		1545
		1546	nr = min (nr, nrof);
		1547
		1548	nrof -= nr;
		1549
		1550	if (nrof)
		1551	{
		1552	adjust_weight (env, -weight * nr); // carrying == 0
		1553
		1554	if (object *pl = visible_to ())
		1555	esrv_update_item (UPD_NROF, pl, this);
		1556
		1557	return true;
		1558	}
		1559	else
		1560	{
		1561	destroy (1);
		1562	return false;
		1563	}
		1564	}
		1565
		1566	/*
		1567	* split(ob,nr) splits up ob into two parts. The part which
		1568	* is returned contains nr objects, and the remaining parts contains
		1569	* the rest (or is removed and returned if that number is 0).
		1570	* On failure, NULL is returned.
		1571	*/
1517	object *	1572	object *
1518	decrease_ob_nr (object *op, uint32 i)	1573	object::split (sint32 nr)
1519	{	1574	{
1520	object *tmp;	1575	int have = number_of ();
1521		1576
1522	if (i == 0) /* objects with op->nrof require this check */	1577	if (have < nr)
1523	return op;	1578	return 0;
1524		1579	else if (have == nr)
1525	if (i > op->nrof)
1526	i = op->nrof;
1527
1528	if (QUERY_FLAG (op, FLAG_REMOVED))
1529	op->nrof -= i;
1530	else if (op->env)
1531	{	1580	{
1532	/* is this object in the players inventory, or sub container
1533	* therein?
1534	*/
1535	tmp = op->in_player ();
1536	/* nope. Is this a container the player has opened?
1537	* If so, set tmp to that player.
1538	* IMO, searching through all the players will mostly
1539	* likely be quicker than following op->env to the map,
1540	* and then searching the map for a player.
1541	*/
1542	if (!tmp)
1543	for_all_players (pl)
1544	if (pl->ob->container == op->env)
1545	{
1546	tmp = pl->ob;
1547	break;
1548	}
1549
1550	if (i < op->nrof)
1551	{
1552	sub_weight (op->env, op->weight * i);
1553	op->nrof -= i;
1554	if (tmp)
1555	esrv_send_item (tmp, op);
1556	}
1557	else
1558	{
1559	op->remove ();	1581	remove ();
1560	op->nrof = 0;	1582	return this;
1561	if (tmp)
1562	esrv_del_item (tmp->contr, op->count);
1563	}
1564	}	1583	}
1565	else	1584	else
1566	{	1585	{
1567	object *above = op->above;	1586	decrease (nr);
1568		1587
1569	if (i < op->nrof)	1588	object *op = object_create_clone (this);
1570	op->nrof -= i;	1589	op->nrof = nr;
1571	else
1572	{
1573	op->remove ();
1574	op->nrof = 0;
1575	}
1576
1577	/* Since we just removed op, op->above is null */
1578	for (tmp = above; tmp; tmp = tmp->above)
1579	if (tmp->type == PLAYER)
1580	{
1581	if (op->nrof)
1582	esrv_send_item (tmp, op);
1583	else
1584	esrv_del_item (tmp->contr, op->count);
1585	}
1586	}
1587
1588	if (op->nrof)
1589	return op;	1590	return op;
1590	else
1591	{
1592	op->destroy ();
1593	return 0;
1594	}
1595	}
1596
1597	/*
1598	* add_weight(object, weight) adds the specified weight to an object,
1599	* and also updates how much the environment(s) is/are carrying.
1600	*/
1601
1602	void
1603	add_weight (object *op, signed long weight)
1604	{
1605	while (op != NULL)
1606	{
1607	if (op->type == CONTAINER)
1608	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1609
1610	op->carrying += weight;
1611	op = op->env;
1612	}	1591	}
1613	}	1592	}
1614		1593
1615	object *	1594	object *
1616	insert_ob_in_ob (object *op, object *where)	1595	insert_ob_in_ob (object *op, object *where)
…		…
1621	LOG (llevError, "Trying to put object in NULL.\n%s\n", dump);	1600	LOG (llevError, "Trying to put object in NULL.\n%s\n", dump);
1622	free (dump);	1601	free (dump);
1623	return op;	1602	return op;
1624	}	1603	}
1625		1604
1626	if (where->head)	1605	if (where->head_ () != where)
1627	{	1606	{
1628	LOG (llevDebug, "Warning: Tried to insert object into wrong part of multipart object.\n");	1607	LOG (llevError | logBacktrace, "Warning: Tried to insert object into wrong part of multipart object.\n");
1629	where = where->head;	1608	where = where->head;
1630	}	1609	}
1631		1610
1632	return where->insert (op);	1611	return where->insert (op);
1633	}	1612	}
…		…
1638	* inside the object environment.	1617	* inside the object environment.
1639	*	1618	*
1640	* The function returns now pointer to inserted item, and return value can	1619	* The function returns now pointer to inserted item, and return value can
1641	* be != op, if items are merged. -Tero	1620	* be != op, if items are merged. -Tero
1642	*/	1621	*/
1643
1644	object *	1622	object *
1645	object::insert (object *op)	1623	object::insert (object *op)
1646	{	1624	{
1647	object *tmp, *otmp;
1648
1649	if (!QUERY_FLAG (op, FLAG_REMOVED))
1650	op->remove ();
1651
1652	if (op->more)	1625	if (op->more)
1653	{	1626	{
1654	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);	1627	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);
1655	return op;	1628	return op;
1656	}	1629	}
1657		1630
1658	CLEAR_FLAG (op, FLAG_OBJ_ORIGINAL);	1631	op->remove ();
1659	CLEAR_FLAG (op, FLAG_REMOVED);	1632
		1633	op->flag [FLAG_OBJ_ORIGINAL] = 0;
		1634
1660	if (op->nrof)	1635	if (op->nrof)
1661	{
1662	for (tmp = inv; tmp != NULL; tmp = tmp->below)	1636	for (object *tmp = inv; tmp; tmp = tmp->below)
1663	if (object::can_merge (tmp, op))	1637	if (object::can_merge (tmp, op))
1664	{	1638	{
1665	/* return the original object and remove inserted object	1639	/* return the original object and remove inserted object
1666	(client needs the original object) */	1640	(client needs the original object) */
1667	tmp->nrof += op->nrof;	1641	tmp->nrof += op->nrof;
1668	/* Weight handling gets pretty funky. Since we are adding to	1642
1669	* tmp->nrof, we need to increase the weight.	1643	if (object *pl = tmp->visible_to ())
1670	*/	1644	esrv_update_item (UPD_NROF, pl, tmp);
		1645
1671	add_weight (this, op->weight * op->nrof);	1646	adjust_weight (this, op->total_weight ());
1672	SET_FLAG (op, FLAG_REMOVED);	1647
1673	op->destroy (); /* free the inserted object */	1648	op->destroy (1);
1674	op = tmp;	1649	op = tmp;
1675	op->remove (); /* and fix old object's links */	1650	goto inserted;
1676	CLEAR_FLAG (op, FLAG_REMOVED);
1677	break;
1678	}	1651	}
1679		1652
1680	/* I assume combined objects have no inventory	1653	op->owner = 0; // it's his/hers now. period.
1681	* We add the weight - this object could have just been removed
1682	* (if it was possible to merge). calling remove_ob will subtract
1683	* the weight, so we need to add it in again, since we actually do
1684	* the linking below
1685	*/
1686	add_weight (this, op->weight * op->nrof);
1687	}
1688	else
1689	add_weight (this, (op->weight + op->carrying));
1690
1691	otmp = this->in_player ();
1692	if (otmp && otmp->contr)
1693	if (!QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1694	otmp->update_stats ();
1695
1696	op->map = 0;	1654	op->map = 0;
1697	op->env = this;	1655	op->x = 0;
		1656	op->y = 0;
		1657
1698	op->above = 0;	1658	op->above = 0;
1699	op->below = 0;	1659	op->below = inv;
1700	op->x = 0, op->y = 0;	1660	op->env = this;
1701		1661
		1662	if (inv)
		1663	inv->above = op;
		1664
		1665	inv = op;
		1666
		1667	op->flag [FLAG_REMOVED] = 0;
		1668
		1669	if (object *pl = op->visible_to ())
		1670	esrv_send_item (pl, op);
		1671
		1672	adjust_weight (this, op->total_weight ());
		1673
		1674	inserted:
1702	/* reset the light list and los of the players on the map */	1675	/* reset the light list and los of the players on the map */
1703	if ((op->glow_radius != 0) && map)	1676	if (op->glow_radius && map && map->darkness)
1704	{
1705	#ifdef DEBUG_LIGHTS
1706	LOG (llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n", op->name);
1707	#endif /* DEBUG_LIGHTS */
1708	if (MAP_DARKNESS (map))
1709	update_all_los (map, x, y);	1677	update_all_los (map, x, y);
1710	}
1711		1678
1712	/* Client has no idea of ordering so lets not bother ordering it here.	1679	// if this is a player's inventory, update stats
1713	* It sure simplifies this function...	1680	if (type == PLAYER && !flag [FLAG_NO_FIX_PLAYER])
1714	*/	1681	update_stats ();
1715	if (!inv)
1716	inv = op;
1717	else
1718	{
1719	op->below = inv;
1720	op->below->above = op;
1721	inv = op;
1722	}
1723		1682
1724	INVOKE_OBJECT (INSERT, this);	1683	INVOKE_OBJECT (INSERT, this);
1725		1684
1726	return op;	1685	return op;
1727	}	1686	}
…		…
1744	*	1703	*
1745	* MSW 2001-07-08: Check all objects on space, not just those below	1704	* MSW 2001-07-08: Check all objects on space, not just those below
1746	* object being inserted. insert_ob_in_map may not put new objects	1705	* object being inserted. insert_ob_in_map may not put new objects
1747	* on top.	1706	* on top.
1748	*/	1707	*/
1749
1750	int	1708	int
1751	check_move_on (object *op, object *originator)	1709	check_move_on (object *op, object *originator)
1752	{	1710	{
1753	object *tmp;	1711	object *tmp;
1754	maptile *m = op->map;	1712	maptile *m = op->map;
…		…
1781		1739
1782	/* The objects have to be checked from top to bottom.	1740	/* The objects have to be checked from top to bottom.
1783	* Hence, we first go to the top:	1741	* Hence, we first go to the top:
1784	*/	1742	*/
1785		1743
1786	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL && tmp->above != NULL; tmp = tmp->above)	1744	for (tmp = op->ms ().bot; tmp && tmp->above; tmp = tmp->above)
1787	{	1745	{
1788	/* Trim the search when we find the first other spell effect	1746	/* Trim the search when we find the first other spell effect
1789	* this helps performance so that if a space has 50 spell objects,	1747	* this helps performance so that if a space has 50 spell objects,
1790	* we don't need to check all of them.	1748	* we don't need to check all of them.
1791	*/	1749	*/
…		…
1809	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||	1767	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||
1810	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))	1768	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))
1811	{	1769	{
1812		1770
1813	float	1771	float
1814	diff = tmp->move_slow_penalty * FABS (op->speed);	1772	diff = tmp->move_slow_penalty * fabs (op->speed);
1815		1773
1816	if (op->type == PLAYER)	1774	if (op->type == PLAYER)
1817	if ((QUERY_FLAG (tmp, FLAG_IS_HILLY) && find_skill_by_number (op, SK_CLIMBING)) ||	1775	if ((QUERY_FLAG (tmp, FLAG_IS_HILLY) && find_skill_by_number (op, SK_CLIMBING)) ||
1818	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))	1776	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))
1819	diff /= 4.0;	1777	diff /= 4.0;
…		…
1846	/*	1804	/*
1847	* present_arch(arch, map, x, y) searches for any objects with	1805	* present_arch(arch, map, x, y) searches for any objects with
1848	* a matching archetype at the given map and coordinates.	1806	* a matching archetype at the given map and coordinates.
1849	* The first matching object is returned, or NULL if none.	1807	* The first matching object is returned, or NULL if none.
1850	*/	1808	*/
1851
1852	object *	1809	object *
1853	present_arch (const archetype *at, maptile *m, int x, int y)	1810	present_arch (const archetype *at, maptile *m, int x, int y)
1854	{	1811	{
1855	object *
1856	tmp;
1857
1858	if (m == NULL || out_of_map (m, x, y))	1812	if (!m || out_of_map (m, x, y))
1859	{	1813	{
1860	LOG (llevError, "Present_arch called outside map.\n");	1814	LOG (llevError, "Present_arch called outside map.\n");
1861	return NULL;	1815	return NULL;
1862	}	1816	}
1863	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)	1817
		1818	for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)
1864	if (tmp->arch == at)	1819	if (tmp->arch == at)
1865	return tmp;	1820	return tmp;
		1821
1866	return NULL;	1822	return NULL;
1867	}	1823	}
1868		1824
1869	/*	1825	/*
1870	* present(type, map, x, y) searches for any objects with	1826	* present(type, map, x, y) searches for any objects with
1871	* a matching type variable at the given map and coordinates.	1827	* a matching type variable at the given map and coordinates.
1872	* The first matching object is returned, or NULL if none.	1828	* The first matching object is returned, or NULL if none.
1873	*/	1829	*/
1874
1875	object *	1830	object *
1876	present (unsigned char type, maptile *m, int x, int y)	1831	present (unsigned char type, maptile *m, int x, int y)
1877	{	1832	{
1878	object *
1879	tmp;
1880
1881	if (out_of_map (m, x, y))	1833	if (out_of_map (m, x, y))
1882	{	1834	{
1883	LOG (llevError, "Present called outside map.\n");	1835	LOG (llevError, "Present called outside map.\n");
1884	return NULL;	1836	return NULL;
1885	}	1837	}
1886	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)	1838
		1839	for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)
1887	if (tmp->type == type)	1840	if (tmp->type == type)
1888	return tmp;	1841	return tmp;
		1842
1889	return NULL;	1843	return NULL;
1890	}	1844	}
1891		1845
1892	/*	1846	/*
1893	* present_in_ob(type, object) searches for any objects with	1847	* present_in_ob(type, object) searches for any objects with
1894	* a matching type variable in the inventory of the given object.	1848	* a matching type variable in the inventory of the given object.
1895	* The first matching object is returned, or NULL if none.	1849	* The first matching object is returned, or NULL if none.
1896	*/	1850	*/
1897
1898	object *	1851	object *
1899	present_in_ob (unsigned char type, const object *op)	1852	present_in_ob (unsigned char type, const object *op)
1900	{	1853	{
1901	object *
1902	tmp;
1903
1904	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1854	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
1905	if (tmp->type == type)	1855	if (tmp->type == type)
1906	return tmp;	1856	return tmp;
		1857
1907	return NULL;	1858	return NULL;
1908	}	1859	}
1909		1860
1910	/*	1861	/*
1911	* present_in_ob (type, str, object) searches for any objects with	1862	* present_in_ob (type, str, object) searches for any objects with
…		…
1922	* to be unique.	1873	* to be unique.
1923	*/	1874	*/
1924	object *	1875	object *
1925	present_in_ob_by_name (int type, const char *str, const object *op)	1876	present_in_ob_by_name (int type, const char *str, const object *op)
1926	{	1877	{
1927	object *tmp;
1928
1929	for (tmp = op->inv; tmp; tmp = tmp->below)	1878	for (object *tmp = op->inv; tmp; tmp = tmp->below)
1930	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))	1879	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))
1931	return tmp;	1880	return tmp;
1932		1881
1933	return 0;	1882	return 0;
1934	}	1883	}
…		…
1952	* activate recursively a flag on an object inventory	1901	* activate recursively a flag on an object inventory
1953	*/	1902	*/
1954	void	1903	void
1955	flag_inv (object *op, int flag)	1904	flag_inv (object *op, int flag)
1956	{	1905	{
1957	if (op->inv)
1958	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)	1906	for (object *tmp = op->inv; tmp; tmp = tmp->below)
1959	{	1907	{
1960	SET_FLAG (tmp, flag);	1908	SET_FLAG (tmp, flag);
1961	flag_inv (tmp, flag);	1909	flag_inv (tmp, flag);
1962	}	1910	}
1963	}	1911	}
1964		1912
1965	/*	1913	/*
1966	* deactivate recursively a flag on an object inventory	1914	* deactivate recursively a flag on an object inventory
1967	*/	1915	*/
1968	void	1916	void
1969	unflag_inv (object *op, int flag)	1917	unflag_inv (object *op, int flag)
1970	{	1918	{
1971	if (op->inv)
1972	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)	1919	for (object *tmp = op->inv; tmp; tmp = tmp->below)
1973	{	1920	{
1974	CLEAR_FLAG (tmp, flag);	1921	CLEAR_FLAG (tmp, flag);
1975	unflag_inv (tmp, flag);	1922	unflag_inv (tmp, flag);
1976	}	1923	}
1977	}
1978
1979	/*
1980	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in
1981	* all it's inventory (recursively).
1982	* If checksums are used, a player will get set_cheat called for
1983	* him/her-self and all object carried by a call to this function.
1984	*/
1985	void
1986	set_cheat (object *op)
1987	{
1988	SET_FLAG (op, FLAG_WAS_WIZ);
1989	flag_inv (op, FLAG_WAS_WIZ);
1990	}	1924	}
1991		1925
1992	/*	1926	/*
1993	* find_free_spot(object, map, x, y, start, stop) will search for	1927	* find_free_spot(object, map, x, y, start, stop) will search for
1994	* a spot at the given map and coordinates which will be able to contain	1928	* a spot at the given map and coordinates which will be able to contain
…		…
1996	* to search (see the freearr_x/y[] definition).	1930	* to search (see the freearr_x/y[] definition).
1997	* It returns a random choice among the alternatives found.	1931	* It returns a random choice among the alternatives found.
1998	* start and stop are where to start relative to the free_arr array (1,9	1932	* start and stop are where to start relative to the free_arr array (1,9
1999	* does all 4 immediate directions). This returns the index into the	1933	* does all 4 immediate directions). This returns the index into the
2000	* array of the free spot, -1 if no spot available (dir 0 = x,y)	1934	* array of the free spot, -1 if no spot available (dir 0 = x,y)
2001	* Note - this only checks to see if there is space for the head of the
2002	* object - if it is a multispace object, this should be called for all
2003	* pieces.
2004	* Note2: This function does correctly handle tiled maps, but does not	1935	* Note: This function does correctly handle tiled maps, but does not
2005	* inform the caller. However, insert_ob_in_map will update as	1936	* inform the caller. However, insert_ob_in_map will update as
2006	* necessary, so the caller shouldn't need to do any special work.	1937	* necessary, so the caller shouldn't need to do any special work.
2007	* Note - updated to take an object instead of archetype - this is necessary	1938	* Note - updated to take an object instead of archetype - this is necessary
2008	* because arch_blocked (now ob_blocked) needs to know the movement type	1939	* because arch_blocked (now ob_blocked) needs to know the movement type
2009	* to know if the space in question will block the object. We can't use	1940	* to know if the space in question will block the object. We can't use
…		…
2011	* customized, changed states, etc.	1942	* customized, changed states, etc.
2012	*/	1943	*/
2013	int	1944	int
2014	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)	1945	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)
2015	{	1946	{
		1947	int altern[SIZEOFFREE];
2016	int index = 0, flag;	1948	int index = 0, flag;
2017	int altern[SIZEOFFREE];
2018		1949
2019	for (int i = start; i < stop; i++)	1950	for (int i = start; i < stop; i++)
2020	{	1951	{
2021	flag = ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]);	1952	mapxy pos (m, x, y); pos.move (i);
2022	if (!flag)	1953
		1954	if (!pos.normalise ())
		1955	continue;
		1956
		1957	mapspace &ms = *pos;
		1958
		1959	if (ms.flags () & P_IS_ALIVE)
		1960	continue;
		1961
		1962	/* However, often
		1963	* ob doesn't have any move type (when used to place exits)
		1964	* so the AND operation in OB_TYPE_MOVE_BLOCK doesn't work.
		1965	*/
		1966	if (ob && ob->move_type == 0 && ms.move_block != MOVE_ALL)
		1967	{
2023	altern [index++] = i;	1968	altern [index++] = i;
		1969	continue;
		1970	}
2024		1971
2025	/* Basically, if we find a wall on a space, we cut down the search size.	1972	/* Basically, if we find a wall on a space, we cut down the search size.
2026	* In this way, we won't return spaces that are on another side of a wall.	1973	* In this way, we won't return spaces that are on another side of a wall.
2027	* This mostly work, but it cuts down the search size in all directions -	1974	* This mostly work, but it cuts down the search size in all directions -
2028	* if the space being examined only has a wall to the north and empty	1975	* if the space being examined only has a wall to the north and empty
2029	* spaces in all the other directions, this will reduce the search space	1976	* spaces in all the other directions, this will reduce the search space
2030	* to only the spaces immediately surrounding the target area, and	1977	* to only the spaces immediately surrounding the target area, and
2031	* won't look 2 spaces south of the target space.	1978	* won't look 2 spaces south of the target space.
2032	*/	1979	*/
2033	else if ((flag & P_NO_PASS) && maxfree[i] < stop)	1980	if (ms.move_block == MOVE_ALL && maxfree[i] < stop)
		1981	{
2034	stop = maxfree[i];	1982	stop = maxfree[i];
		1983	continue;
		1984	}
		1985
		1986	/* Note it is intentional that we check ob - the movement type of the
		1987	* head of the object should correspond for the entire object.
		1988	*/
		1989	if (OB_TYPE_MOVE_BLOCK (ob, ms.move_block))
		1990	continue;
		1991
		1992	if (ob->blocked (m, pos.x, pos.y))
		1993	continue;
		1994
		1995	altern [index++] = i;
2035	}	1996	}
2036		1997
2037	if (!index)	1998	if (!index)
2038	return -1;	1999	return -1;
2039		2000
2040	return altern[RANDOM () % index];	2001	return altern [rndm (index)];
2041	}	2002	}
2042		2003
2043	/*	2004	/*
2044	* find_first_free_spot(archetype, maptile, x, y) works like	2005	* find_first_free_spot(archetype, maptile, x, y) works like
2045	* find_free_spot(), but it will search max number of squares.	2006	* find_free_spot(), but it will search max number of squares.
…		…
2048	*/	2009	*/
2049	int	2010	int
2050	find_first_free_spot (const object *ob, maptile *m, int x, int y)	2011	find_first_free_spot (const object *ob, maptile *m, int x, int y)
2051	{	2012	{
2052	for (int i = 0; i < SIZEOFFREE; i++)	2013	for (int i = 0; i < SIZEOFFREE; i++)
2053	if (!ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]))	2014	if (!ob->blocked (m, x + freearr_x[i], y + freearr_y[i]))
2054	return i;	2015	return i;
2055		2016
2056	return -1;	2017	return -1;
2057	}	2018	}
2058		2019
…		…
2066	{	2027	{
2067	arr += begin;	2028	arr += begin;
2068	end -= begin;	2029	end -= begin;
2069		2030
2070	while (--end)	2031	while (--end)
2071	swap (arr [end], arr [RANDOM () % (end + 1)]);	2032	swap (arr [end], arr [rndm (end + 1)]);
2072	}	2033	}
2073		2034
2074	/* new function to make monster searching more efficient, and effective!	2035	/* new function to make monster searching more efficient, and effective!
2075	* This basically returns a randomized array (in the passed pointer) of	2036	* This basically returns a randomized array (in the passed pointer) of
2076	* the spaces to find monsters. In this way, it won't always look for	2037	* the spaces to find monsters. In this way, it won't always look for
…		…
2112	object *tmp;	2073	object *tmp;
2113	maptile *mp;	2074	maptile *mp;
2114		2075
2115	MoveType blocked, move_type;	2076	MoveType blocked, move_type;
2116		2077
2117	if (exclude && exclude->head)	2078	if (exclude && exclude->head_ () != exclude)
2118	{	2079	{
2119	exclude = exclude->head;	2080	exclude = exclude->head;
2120	move_type = exclude->move_type;	2081	move_type = exclude->move_type;
2121	}	2082	}
2122	else	2083	else
…		…
2143		2104
2144	if ((move_type & blocked) == move_type)	2105	if ((move_type & blocked) == move_type)
2145	max = maxfree[i];	2106	max = maxfree[i];
2146	else if (mflags & P_IS_ALIVE)	2107	else if (mflags & P_IS_ALIVE)
2147	{	2108	{
2148	for (tmp = ms.bottom; tmp; tmp = tmp->above)	2109	for (tmp = ms.bot; tmp; tmp = tmp->above)
2149	if ((tmp->flag [FLAG_MONSTER] || tmp->type == PLAYER)	2110	if ((tmp->flag [FLAG_MONSTER] || tmp->type == PLAYER)
2150	&& (tmp != exclude || (tmp->head && tmp->head != exclude)))	2111	&& (tmp != exclude || (tmp->head_ () != tmp && tmp->head_ () != exclude)))
2151	break;	2112	break;
2152		2113
2153	if (tmp)	2114	if (tmp)
2154	return freedir[i];	2115	return freedir[i];
2155	}	2116	}
…		…
2210		2171
2211	return 3;	2172	return 3;
2212	}	2173	}
2213		2174
2214	/*	2175	/*
2215	* absdir(int): Returns a number between 1 and 8, which represent
2216	* the "absolute" direction of a number (it actually takes care of
2217	* "overflow" in previous calculations of a direction).
2218	*/
2219
2220	int
2221	absdir (int d)
2222	{
2223	while (d < 1)
2224	d += 8;
2225
2226	while (d > 8)
2227	d -= 8;
2228
2229	return d;
2230	}
2231
2232	/*
2233	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is	2176	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is
2234	* between two directions (which are expected to be absolute (see absdir())	2177	* between two directions (which are expected to be absolute (see absdir())
2235	*/	2178	*/
2236
2237	int	2179	int
2238	dirdiff (int dir1, int dir2)	2180	dirdiff (int dir1, int dir2)
2239	{	2181	{
2240	int d;	2182	int d;
2241		2183
…		…
2354	* Cf 0.91.3 - don't let WIZ's pick up anything - will likely cause	2296	* Cf 0.91.3 - don't let WIZ's pick up anything - will likely cause
2355	* core dumps if they do.	2297	* core dumps if they do.
2356	*	2298	*
2357	* Add a check so we can't pick up invisible objects (0.93.8)	2299	* Add a check so we can't pick up invisible objects (0.93.8)
2358	*/	2300	*/
2359
2360	int	2301	int
2361	can_pick (const object *who, const object *item)	2302	can_pick (const object *who, const object *item)
2362	{	2303	{
2363	return /*QUERY_FLAG(who,FLAG_WIZ)|| */	2304	return /*QUERY_FLAG(who,FLAG_WIZ)|| */
2364	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&	2305	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&
…		…
2369	* create clone from object to another	2310	* create clone from object to another
2370	*/	2311	*/
2371	object *	2312	object *
2372	object_create_clone (object *asrc)	2313	object_create_clone (object *asrc)
2373	{	2314	{
2374	object *dst = 0, *tmp, *src, *part, *prev, *item;	2315	object *dst = 0, *tmp, *src, *prev, *item;
2375		2316
2376	if (!asrc)	2317	if (!asrc)
2377	return 0;	2318	return 0;
2378		2319
2379	src = asrc;
2380	if (src->head)
2381	src = src->head;	2320	src = asrc->head_ ();
2382		2321
2383	prev = 0;	2322	prev = 0;
2384	for (part = src; part; part = part->more)	2323	for (object *part = src; part; part = part->more)
2385	{	2324	{
2386	tmp = part->clone ();	2325	tmp = part->clone ();
2387	tmp->x -= src->x;	2326	tmp->x -= src->x;
2388	tmp->y -= src->y;	2327	tmp->y -= src->y;
2389		2328
…		…
2407	insert_ob_in_ob (object_create_clone (item), dst);	2346	insert_ob_in_ob (object_create_clone (item), dst);
2408		2347
2409	return dst;	2348	return dst;
2410	}	2349	}
2411		2350
2412	/* GROS - Creates an object using a string representing its content. */
2413	/* Basically, we save the content of the string to a temp file, then call */
2414	/* load_object on it. I admit it is a highly inefficient way to make things, */
2415	/* but it was simple to make and allows reusing the load_object function. */
2416	/* Remember not to use load_object_str in a time-critical situation. */
2417	/* Also remember that multiparts objects are not supported for now. */
2418	object *
2419	load_object_str (const char *obstr)
2420	{
2421	object *op;
2422	char filename[MAX_BUF];
2423
2424	sprintf (filename, "%s/cfloadobstr2044", settings.tmpdir);
2425
2426	FILE *tempfile = fopen (filename, "w");
2427
2428	if (tempfile == NULL)
2429	{
2430	LOG (llevError, "Error - Unable to access load object temp file\n");
2431	return NULL;
2432	}
2433
2434	fprintf (tempfile, obstr);
2435	fclose (tempfile);
2436
2437	op = object::create ();
2438
2439	object_thawer thawer (filename);
2440
2441	if (thawer)
2442	load_object (thawer, op, 0);
2443
2444	LOG (llevDebug, " load str completed, object=%s\n", &op->name);
2445	CLEAR_FLAG (op, FLAG_REMOVED);
2446
2447	return op;
2448	}
2449
2450	/* This returns the first object in who's inventory that	2351	/* This returns the first object in who's inventory that
2451	* has the same type and subtype match.	2352	* has the same type and subtype match.
2452	* returns NULL if no match.	2353	* returns NULL if no match.
2453	*/	2354	*/
2454	object *	2355	object *
…		…
2507	if (link->key == canonical_key)	2408	if (link->key == canonical_key)
2508	return link->value;	2409	return link->value;
2509		2410
2510	return 0;	2411	return 0;
2511	}	2412	}
2512
2513		2413
2514	/*	2414	/*
2515	* Updates the canonical_key in op to value.	2415	* Updates the canonical_key in op to value.
2516	*	2416	*
2517	* canonical_key is a shared string (value doesn't have to be).	2417	* canonical_key is a shared string (value doesn't have to be).
…		…
2541	/* Basically, if the archetype has this key set,	2441	/* Basically, if the archetype has this key set,
2542	* we need to store the null value so when we save	2442	* we need to store the null value so when we save
2543	* it, we save the empty value so that when we load,	2443	* it, we save the empty value so that when we load,
2544	* we get this value back again.	2444	* we get this value back again.
2545	*/	2445	*/
2546	if (get_ob_key_link (&op->arch->clone, canonical_key))	2446	if (get_ob_key_link (op->arch, canonical_key))
2547	field->value = 0;	2447	field->value = 0;
2548	else	2448	else
2549	{	2449	{
2550	if (last)	2450	if (last)
2551	last->next = field->next;	2451	last->next = field->next;
…		…
2620	}	2520	}
2621	else	2521	else
2622	item = item->env;	2522	item = item->env;
2623	}	2523	}
2624		2524
		2525	const char *
		2526	object::flag_desc (char *desc, int len) const
		2527	{
		2528	char *p = desc;
		2529	bool first = true;
		2530
		2531	*p = 0;
		2532
		2533	for (int i = 0; i < NUM_FLAGS; i++)
		2534	{
		2535	if (len <= 10) // magic constant!
		2536	{
		2537	snprintf (p, len, ",...");
		2538	break;
		2539	}
		2540
		2541	if (flag [i])
		2542	{
		2543	int cnt = snprintf (p, len, "%s%d", first ? "" : ",", i);
		2544	len -= cnt;
		2545	p += cnt;
		2546	first = false;
		2547	}
		2548	}
		2549
		2550	return desc;
		2551	}
		2552
2625	// return a suitable string describing an objetc in enough detail to find it	2553	// return a suitable string describing an object in enough detail to find it
2626	const char *	2554	const char *
2627	object::debug_desc (char *info) const	2555	object::debug_desc (char *info) const
2628	{	2556	{
		2557	char flagdesc[512];
2629	char info2[256 * 3];	2558	char info2[256 * 4];
2630	char *p = info;	2559	char *p = info;
2631		2560
2632	p += snprintf (p, 256, "%d=\"%s%s%s\"",	2561	p += snprintf (p, 512, "{cnt:%d,uuid:%s,name:\"%s\"%s%s,flags:[%s],type:%d}",
2633	count,	2562	count,
		2563	uuid.c_str (),
2634	&name,	2564	&name,
2635	title ? " " : "",	2565	title ? "\",title:\"" : "",
2636	title ? (const char *)title : "");	2566	title ? (const char *)title : "",
		2567	flag_desc (flagdesc, 512), type);
2637		2568
2638	if (env)	2569	if (!flag[FLAG_REMOVED] && env)
2639	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));	2570	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));
2640		2571
2641	if (map)	2572	if (map)
2642	p += snprintf (p, 256, "(on %s@%d+%d)", map->path, x, y);	2573	p += snprintf (p, 256, "(on %s@%d+%d)", &map->path, x, y);
2643		2574
2644	return info;	2575	return info;
2645	}	2576	}
2646		2577
2647	const char *	2578	const char *
2648	object::debug_desc () const	2579	object::debug_desc () const
2649	{	2580	{
2650	static char info[256 * 3];	2581	static char info[3][256 * 4];
		2582	static int info_idx;
		2583
2651	return debug_desc (info);	2584	return debug_desc (info [++info_idx % 3]);
2652	}	2585	}
2653		2586
		2587	struct region *
		2588	object::region () const
		2589	{
		2590	return map ? map->region (x, y)
		2591	: region::default_region ();
		2592	}
		2593
		2594	const materialtype_t *
		2595	object::dominant_material () const
		2596	{
		2597	if (materialtype_t *mt = name_to_material (materialname))
		2598	return mt;
		2599
		2600	return name_to_material (shstr_unknown);
		2601	}
		2602
		2603	void
		2604	object::open_container (object *new_container)
		2605	{
		2606	if (container == new_container)
		2607	return;
		2608
		2609	if (object *old_container = container)
		2610	{
		2611	if (INVOKE_OBJECT (CLOSE, old_container, ARG_OBJECT (this)))
		2612	return;
		2613
		2614	#if 0
		2615	// remove the "Close old_container" object.
		2616	if (object *closer = old_container->inv)
		2617	if (closer->type == CLOSE_CON)
		2618	closer->destroy ();
		2619	#endif
		2620
		2621	old_container->flag [FLAG_APPLIED] = false;
		2622	container = 0;
		2623
		2624	esrv_update_item (UPD_FLAGS, this, old_container);
		2625	new_draw_info_format (NDI_UNIQUE, 0, this, "You close %s.", query_name (old_container));
		2626	play_sound (sound_find ("chest_close"));
		2627	}
		2628
		2629	if (new_container)
		2630	{
		2631	if (INVOKE_OBJECT (OPEN, new_container, ARG_OBJECT (this)))
		2632	return;
		2633
		2634	// TODO: this does not seem to serve any purpose anymore?
		2635	#if 0
		2636	// insert the "Close Container" object.
		2637	if (archetype *closer = new_container->other_arch)
		2638	{
		2639	object *closer = arch_to_object (new_container->other_arch);
		2640	closer->flag [FLAG_NO_MAP_SAVE] = 1;
		2641	new_container->insert (closer);
		2642	}
		2643	#endif
		2644
		2645	new_draw_info_format (NDI_UNIQUE, 0, this, "You open %s.", query_name (new_container));
		2646
		2647	new_container->flag [FLAG_APPLIED] = true;
		2648	container = new_container;
		2649
		2650	esrv_update_item (UPD_FLAGS, this, new_container);
		2651	esrv_send_inventory (this, new_container);
		2652	play_sound (sound_find ("chest_open"));
		2653	}
		2654	}
		2655
		2656	object *
		2657	object::force_find (const shstr name)
		2658	{
		2659	/* cycle through his inventory to look for the MARK we want to
		2660	* place
		2661	*/
		2662	for (object *tmp = inv; tmp; tmp = tmp->below)
		2663	if (tmp->type == FORCE && tmp->slaying == name)
		2664	return splay (tmp);
		2665
		2666	return 0;
		2667	}
		2668
		2669	void
		2670	object::force_add (const shstr name, int duration)
		2671	{
		2672	if (object *force = force_find (name))
		2673	force->destroy ();
		2674
		2675	object *force = get_archetype (FORCE_NAME);
		2676
		2677	force->slaying = name;
		2678	force->stats.food = 1;
		2679	force->speed_left = -1.f;
		2680
		2681	force->set_speed (duration ? 1.f / duration : 0.f);
		2682	force->flag [FLAG_IS_USED_UP] = true;
		2683	force->flag [FLAG_APPLIED] = true;
		2684
		2685	insert (force);
		2686	}
		2687
		2688	void
		2689	object::play_sound (faceidx sound)
		2690	{
		2691	if (!sound)
		2692	return;
		2693
		2694	if (flag [FLAG_REMOVED])
		2695	return;
		2696
		2697	if (env)
		2698	{
		2699	if (object *pl = in_player ())
		2700	pl->contr->play_sound (sound);
		2701	}
		2702	else
		2703	map->play_sound (sound, x, y);
		2704	}
		2705

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