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Comparing deliantra/server/common/object.C (file contents):
Revision 1.98 by root, Sun Dec 31 17:17:22 2006 UTC vs.
Revision 1.243 by root, Sat May 17 00:17:02 2008 UTC

1	/*	1	/*
2	CrossFire, A Multiplayer game for X-windows	2	* This file is part of Deliantra, the Roguelike Realtime MMORPG.
3		3	*
		4	* Copyright (©) 2005,2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
4	Copyright (C) 2001 Mark Wedel & Crossfire Development Team	5	* Copyright (©) 2001,2007 Mark Wedel & Crossfire Development Team
5	Copyright (C) 1992 Frank Tore Johansen	6	* Copyright (©) 1992,2007 Frank Tore Johansen
6		7	*
7	This program is free software; you can redistribute it and/or modify	8	* Deliantra is free software: you can redistribute it and/or modify
8	it under the terms of the GNU General Public License as published by	9	* it under the terms of the GNU General Public License as published by
9	the Free Software Foundation; either version 2 of the License, or	10	* the Free Software Foundation, either version 3 of the License, or
10	(at your option) any later version.	11	* (at your option) any later version.
11		12	*
12	This program is distributed in the hope that it will be useful,	13	* This program is distributed in the hope that it will be useful,
13	but WITHOUT ANY WARRANTY; without even the implied warranty of	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15	GNU General Public License for more details.	16	* GNU General Public License for more details.
16		17	*
17	You should have received a copy of the GNU General Public License	18	* You should have received a copy of the GNU General Public License
18	along with this program; if not, write to the Free Software	19	* along with this program. If not, see <http://www.gnu.org/licenses/>.
19	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.	20	*
20		21	* The authors can be reached via e-mail to <support@deliantra.net>
21	The authors can be reached via e-mail at <crossfire@schmorp.de>
22	*/	22	*/
23		23
24	/* Eneq(@csd.uu.se): Added weight-modifiers in environment of objects.
25	sub/add_weight will transcend the environment updating the carrying
26	variable. */
27	#include <global.h>	24	#include <global.h>
28	#include <stdio.h>	25	#include <stdio.h>
29	#include <sys/types.h>	26	#include <sys/types.h>
30	#include <sys/uio.h>	27	#include <sys/uio.h>
31	#include <object.h>	28	#include <object.h>
32	#include <funcpoint.h>	29	#include <sproto.h>
33	#include <loader.h>	30	#include <loader.h>
34		31
35	#include <bitset>	32	#include <bitset>
36		33
37	int nrofallocobjects = 0;	34	UUID UUID::cur;
38	static UUID uuid;	35	static uint64_t seq_next_save;
39	const uint64 UUID_SKIP = 1<<19;	36	static const uint64 UUID_GAP = 1<<19;
40		37
41	object *active_objects; /* List of active objects that need to be processed */	38	objectvec objects;
		39	activevec actives;
42		40
43	short freearr_x[SIZEOFFREE] = { 0, 0, 1, 1, 1, 0, -1, -1, -1, 0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2, -2, -2, -2, -1,	41	short freearr_x[SIZEOFFREE] = {
		42	0,
		43	0, 1, 1, 1, 0, -1, -1, -1,
		44	0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2, -2, -2, -2, -1,
44	0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3, -3, -3, -3, -3, -2, -1	45	0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3, -3, -3, -3, -3, -2, -1
45	};	46	};
46	short freearr_y[SIZEOFFREE] = { 0, -1, -1, 0, 1, 1, 1, 0, -1, -2, -2, -2, -1, 0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2,	47	short freearr_y[SIZEOFFREE] = {
		48	0,
		49	-1, -1, 0, 1, 1, 1, 0, -1,
		50	-2, -2, -2, -1, 0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2,
47	-3, -3, -3, -3, -2, -1, 0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3	51	-3, -3, -3, -3, -2, -1, 0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3
48	};	52	};
49	int maxfree[SIZEOFFREE] = { 0, 9, 10, 13, 14, 17, 18, 21, 22, 25, 26, 27, 30, 31, 32, 33, 36, 37, 39, 39, 42, 43, 44, 45,	53	int maxfree[SIZEOFFREE] = {
		54	0,
		55	9, 10, 13, 14, 17, 18, 21, 22,
		56	25, 26, 27, 30, 31, 32, 33, 36, 37, 39, 39, 42, 43, 44, 45, 48,
50	48, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49	57	49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49
51	};	58	};
52	int freedir[SIZEOFFREE] = {	59	int freedir[SIZEOFFREE] = {
53	0, 1, 2, 3, 4, 5, 6, 7, 8, 1, 2, 2, 2, 3, 4, 4, 4, 5, 6, 6, 6, 7, 8, 8, 8,	60	0,
		61	1, 2, 3, 4, 5, 6, 7, 8,
		62	1, 2, 2, 2, 3, 4, 4, 4, 5, 6, 6, 6, 7, 8, 8, 8,
54	1, 2, 2, 2, 2, 2, 3, 4, 4, 4, 4, 4, 5, 6, 6, 6, 6, 6, 7, 8, 8, 8, 8, 8	63	1, 2, 2, 2, 2, 2, 3, 4, 4, 4, 4, 4, 5, 6, 6, 6, 6, 6, 7, 8, 8, 8, 8, 8
55	};	64	};
56		65
57	static void	66	static void
58	write_uuid (void)	67	write_uuid (uval64 skip, bool sync)
59	{	68	{
60	char filename1[MAX_BUF], filename2[MAX_BUF];	69	CALL_BEGIN (2);
61		70	CALL_ARG_SV (newSVval64 (skip));
62	sprintf (filename1, "%s/uuid", settings.localdir);	71	CALL_ARG_SV (boolSV (sync));
63	sprintf (filename2, "%s/uuid~", settings.localdir);	72	CALL_CALL ("cf::write_uuid", G_DISCARD);
64		73	CALL_END;
65	FILE *fp;
66
67	if (!(fp = fopen (filename2, "w")))
68	{
69	LOG (llevError, "ERROR: cannot open %s for writing, unable to write UUID!\n", filename2);
70	return;
71	}
72
73	fprintf (fp, "<1,%llx>\n", (unsigned long long)uuid.seq + UUID_SKIP * 2);
74	fclose (fp);
75	rename (filename2, filename1);
76	}	74	}
77		75
78	static void	76	static void
79	read_uuid (void)	77	read_uuid (void)
80	{	78	{
81	char filename[MAX_BUF];	79	char filename[MAX_BUF];
82		80
83	sprintf (filename, "%s/uuid", settings.localdir);	81	sprintf (filename, "%s/uuid", settings.localdir);
		82
		83	seq_next_save = 0;
84		84
85	FILE *fp;	85	FILE *fp;
86		86
87	if (!(fp = fopen (filename, "r")))	87	if (!(fp = fopen (filename, "r")))
88	{	88	{
89	if (errno == ENOENT)	89	if (errno == ENOENT)
90	{	90	{
91	LOG (llevInfo, "RESET uid to 1\n");	91	LOG (llevInfo, "RESET uid to 1\n");
92	uuid.seq = 0;	92	UUID::cur.seq = 0;
93	write_uuid ();	93	write_uuid (UUID_GAP, true);
94	return;	94	return;
95	}	95	}
96		96
97	LOG (llevError, "FATAL: cannot open %s for reading!\n", filename);	97	LOG (llevError, "FATAL: cannot open %s for reading!\n", filename);
98	_exit (1);	98	_exit (1);
99	}	99	}
100		100
101	int version;	101	UUID::BUF buf;
102	unsigned long long uid;	102	buf[0] = 0;
103	if (2 != fscanf (fp, "<%d,%llx>\n", &version, &uid) || version != 1)	103	fgets (buf, sizeof (buf), fp);
		104
		105	if (!UUID::cur.parse (buf))
104	{	106	{
105	LOG (llevError, "FATAL: error reading uid from %s!\n", filename);	107	LOG (llevError, "FATAL: error reading uid from %s (%s)!\n", filename, buf);
106	_exit (1);	108	_exit (1);
107	}	109	}
108		110
109	uuid.seq = uid;	111	LOG (llevDebug, "read UUID: %s\n", UUID::cur.c_str ());
110	write_uuid ();	112
111	LOG (llevDebug, "read UID: %" PRId64 "\n", uid);	113	write_uuid (UUID_GAP, true);
112	fclose (fp);	114	fclose (fp);
113	}	115	}
114		116
115	UUID	117	UUID
116	gen_uuid ()	118	UUID::gen ()
117	{	119	{
118	UUID uid;	120	UUID uid;
119		121
120	uid.seq = ++uuid.seq;	122	uid.seq = ++cur.seq;
121		123
122	if (!(uuid.seq & (UUID_SKIP - 1)))	124	if (expect_false (cur.seq >= seq_next_save))
123	write_uuid ();	125	{
		126	seq_next_save = UUID::cur.seq + (UUID_GAP >> 1);
		127	write_uuid (UUID_GAP, false);
		128	}
		129
124		130
125	return uid;	131	return uid;
126	}	132	}
127		133
128	void	134	void
129	init_uuid ()	135	UUID::init ()
130	{	136	{
131	read_uuid ();	137	read_uuid ();
132	}	138	}
133		139
134	/* Returns TRUE if every key_values in wants has a partner with the same value in has. */	140	/* Returns TRUE if every key_values in wants has a partner with the same value in has. */
135	static int	141	static bool
136	compare_ob_value_lists_one (const object *wants, const object *has)	142	compare_ob_value_lists_one (const object *wants, const object *has)
137	{	143	{
138	key_value *wants_field;
139
140	/* n-squared behaviour (see get_ob_key_link()), but I'm hoping both	144	/* n-squared behaviour (see kv_get), but I'm hoping both
141	* objects with lists are rare, and lists stay short. If not, use a	145	* objects with lists are rare, and lists stay short. If not, use a
142	* different structure or at least keep the lists sorted...	146	* different structure or at least keep the lists sorted...
143	*/	147	*/
144		148
145	/* For each field in wants, */	149	/* For each field in wants, */
146	for (wants_field = wants->key_values; wants_field; wants_field = wants_field->next)	150	for (key_value *kv = wants->key_values; kv; kv = kv->next)
147	{	151	if (has->kv_get (kv->key) != kv->value)
148	key_value *has_field;	152	return false;
149
150	/* Look for a field in has with the same key. */
151	has_field = get_ob_key_link (has, wants_field->key);
152
153	if (has_field == NULL)
154	{
155	/* No field with that name. */
156	return FALSE;
157	}
158
159	/* Found the matching field. */
160	if (has_field->value != wants_field->value)
161	{
162	/* Values don't match, so this half of the comparison is false. */
163	return FALSE;
164	}
165
166	/* If we get here, we found a match. Now for the next field in wants. */
167	}
168		153
169	/* If we get here, every field in wants has a matching field in has. */	154	/* If we get here, every field in wants has a matching field in has. */
170	return TRUE;	155	return true;
171	}	156	}
172		157
173	/* Returns TRUE if ob1 has the same key_values as ob2. */	158	/* Returns TRUE if ob1 has the same key_values as ob2. */
174	static int	159	static bool
175	compare_ob_value_lists (const object *ob1, const object *ob2)	160	compare_ob_value_lists (const object *ob1, const object *ob2)
176	{	161	{
177	/* However, there may be fields in has which aren't partnered in wants,	162	/* However, there may be fields in has which aren't partnered in wants,
178	* so we need to run the comparison *twice*. :(	163	* so we need to run the comparison *twice*. :(
179	*/	164	*/
180	return compare_ob_value_lists_one (ob1, ob2) && compare_ob_value_lists_one (ob2, ob1);	165	return compare_ob_value_lists_one (ob1, ob2)
		166	&& compare_ob_value_lists_one (ob2, ob1);
181	}	167	}
182		168
183	/* Function examines the 2 objects given to it, and returns true if	169	/* Function examines the 2 objects given to it, and returns true if
184	* they can be merged together.	170	* they can be merged together.
185	*	171	*
…		…
200	|| ob1->speed != ob2->speed	186	|| ob1->speed != ob2->speed
201	|| ob1->value != ob2->value	187	|| ob1->value != ob2->value
202	|| ob1->name != ob2->name)	188	|| ob1->name != ob2->name)
203	return 0;	189	return 0;
204		190
205	//TODO: this ain't working well, use nicer and correct overflow check	191	// some objects are unmergable
206	/* Do not merge objects if nrof would overflow. We use 1UL<<31 since that	192	if (!ob1->nrof || !ob2->nrof)
207	* value could not be stored in a sint32 (which unfortunately sometimes is	193	return 0;
208	* used to store nrof).	194
		195	/* Do not merge objects if nrof would overflow. First part checks
		196	* for unsigned overflow (2c), second part checks whether the result
		197	* would fit into a 32 bit signed int, which is often used to hold
		198	* nrof values.
209	*/	199	*/
210	if (ob1->nrof + ob2->nrof >= 1UL << 31)	200	if (~ob1->nrof < ob2->nrof || ob1->nrof + ob2->nrof > (1UL << 31))
211	return 0;	201	return 0;
212		202
213	/* If the objects have been identified, set the BEEN_APPLIED flag.	203	/* If the objects have been identified, set the BEEN_APPLIED flag.
214	* This is to the comparison of the flags below will be OK. We	204	* This is to the comparison of the flags below will be OK. We
215	* just can't ignore the been applied or identified flags, as they	205	* just can't ignore the been applied or identified flags, as they
216	* are not equal - just if it has been identified, the been_applied	206	* are not equal - just if it has been identified, the been_applied
217	* flags lose any meaning.	207	* flags lose any meaning.
218	*/	208	*/
219	if (QUERY_FLAG (ob1, FLAG_IDENTIFIED))	209	if (QUERY_FLAG (ob1, FLAG_IDENTIFIED))
220	SET_FLAG (ob1, FLAG_BEEN_APPLIED);	210	SET_FLAG (ob1, FLAG_BEEN_APPLIED);
221		211
222	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))	212	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))
223	SET_FLAG (ob2, FLAG_BEEN_APPLIED);	213	SET_FLAG (ob2, FLAG_BEEN_APPLIED);
224		214
225	if ((ob1->flag ^ ob2->flag).reset (FLAG_INV_LOCKED).reset (FLAG_CLIENT_SENT).any ()	215	if (ob1->arch->archname != ob2->arch->archname
226	|| ob1->arch != ob2->arch
227	|| ob1->name != ob2->name	216	|| ob1->name != ob2->name
228	|| ob1->title != ob2->title	217	|| ob1->title != ob2->title
229	|| ob1->msg != ob2->msg	218	|| ob1->msg != ob2->msg
230	|| ob1->weight != ob2->weight	219	|| ob1->weight != ob2->weight
231	|| memcmp (&ob1->resist, &ob2->resist, sizeof (ob1->resist))
232	|| memcmp (&ob1->stats , &ob2->stats , sizeof (ob1->stats) )
233	|| ob1->attacktype != ob2->attacktype	220	|| ob1->attacktype != ob2->attacktype
234	|| ob1->magic != ob2->magic	221	|| ob1->magic != ob2->magic
235	|| ob1->slaying != ob2->slaying	222	|| ob1->slaying != ob2->slaying
236	|| ob1->skill != ob2->skill	223	|| ob1->skill != ob2->skill
237	|| ob1->value != ob2->value	224	|| ob1->value != ob2->value
238	|| ob1->animation_id != ob2->animation_id	225	|| ob1->animation_id != ob2->animation_id
		226	|| (ob1->face != ob2->face && !ob1->animation_id) // face and animation are dependent on each other
239	|| ob1->client_type != ob2->client_type	227	|| ob1->client_type != ob2->client_type
240	|| ob1->materialname != ob2->materialname	228	|| ob1->materialname != ob2->materialname
241	|| ob1->lore != ob2->lore	229	|| ob1->lore != ob2->lore
242	|| ob1->subtype != ob2->subtype	230	|| ob1->subtype != ob2->subtype
243	|| ob1->move_type != ob2->move_type	231	|| ob1->move_type != ob2->move_type
244	|| ob1->move_block != ob2->move_block	232	|| ob1->move_block != ob2->move_block
245	|| ob1->move_allow != ob2->move_allow	233	|| ob1->move_allow != ob2->move_allow
246	|| ob1->move_on != ob2->move_on	234	|| ob1->move_on != ob2->move_on
247	|| ob1->move_off != ob2->move_off	235	|| ob1->move_off != ob2->move_off
248	|| ob1->move_slow != ob2->move_slow	236	|| ob1->move_slow != ob2->move_slow
249	|| ob1->move_slow_penalty != ob2->move_slow_penalty)	237	|| ob1->move_slow_penalty != ob2->move_slow_penalty
		238	|| memcmp (&ob1->resist, &ob2->resist, sizeof (ob1->resist))
		239	|| memcmp (&ob1->stats , &ob2->stats , sizeof (ob1->stats)))
250	return 0;	240	return 0;
251		241
		242	if ((ob1->flag ^ ob2->flag)
		243	.reset (FLAG_INV_LOCKED)
		244	.reset (FLAG_CLIENT_SENT)
		245	.reset (FLAG_REMOVED)
		246	.any ())
		247	return 0;
		248
252	/* This is really a spellbook check - really, we should	249	/* This is really a spellbook check - we should in general
253	* check all objects in the inventory.	250	* not merge objects with real inventories, as splitting them
		251	* is hard.
254	*/	252	*/
255	if (ob1->inv || ob2->inv)	253	if (ob1->inv || ob2->inv)
256	{	254	{
257	/* if one object has inventory but the other doesn't, not equiv */	255	if (!(ob1->inv && ob2->inv))
258	if ((ob1->inv && !ob2->inv) || (ob2->inv && !ob1->inv))	256	return 0; /* inventories differ in length */
259	return 0;
260		257
261	/* Now check to see if the two inventory objects could merge */	258	if (ob1->inv->below || ob2->inv->below)
		259	return 0; /* more than one object in inv */
		260
262	if (!object::can_merge (ob1->inv, ob2->inv))	261	if (!object::can_merge (ob1->inv, ob2->inv))
263	return 0;	262	return 0; /* inventory objects differ */
264		263
265	/* inventory ok - still need to check rest of this object to see	264	/* inventory ok - still need to check rest of this object to see
266	* if it is valid.	265	* if it is valid.
267	*/	266	*/
268	}	267	}
…		…
287	if (ob1->level != ob2->level)	286	if (ob1->level != ob2->level)
288	return 0;	287	return 0;
289	break;	288	break;
290	}	289	}
291		290
292	if (ob1->key_values != NULL || ob2->key_values != NULL)	291	if (ob1->key_values || ob2->key_values)
293	{	292	{
294	/* At least one of these has key_values. */	293	/* At least one of these has key_values. */
295	if ((ob1->key_values == NULL) != (ob2->key_values == NULL))	294	if ((!ob1->key_values) != (!ob2->key_values))
296	/* One has fields, but the other one doesn't. */	295	return 0; /* One has fields, but the other one doesn't. */
		296
		297	if (!compare_ob_value_lists (ob1, ob2))
297	return 0;	298	return 0;
298	else if (!compare_ob_value_lists (ob1, ob2))
299	return 0;
300	}	299	}
301		300
302	//TODO: generate an event or call into perl for additional checks
303	if (ob1->self || ob2->self)	301	if (ob1->self || ob2->self)
304	{	302	{
305	ob1->optimise ();	303	ob1->optimise ();
306	ob2->optimise ();	304	ob2->optimise ();
307		305
308	if (ob1->self || ob2->self)	306	if (ob1->self || ob2->self)
		307	{
		308	int k1 = ob1->self ? HvTOTALKEYS (ob1->self) : 0;
		309	int k2 = ob2->self ? HvTOTALKEYS (ob2->self) : 0;
		310
		311	if (k1 != k2)
309	return 0;	312	return 0;
		313
		314	if (k1 == 0)
		315	return 1;
		316
		317	if (!cfperl_can_merge (ob1, ob2))
		318	return 0;
		319	}
310	}	320	}
311		321
312	/* Everything passes, must be OK. */	322	/* Everything passes, must be OK. */
313	return 1;	323	return 1;
314	}	324	}
315		325
		326	// find player who can see this object
		327	object *
		328	object::visible_to () const
		329	{
		330	if (client_visible () && !flag [FLAG_REMOVED])
		331	{
		332	// see if we are in a container of sorts
		333	if (env)
		334	{
		335	// the player inventory itself is always visible
		336	if (env->type == PLAYER)
		337	return env;
		338
		339	// else a player could have our env open
		340	object *envest = env->outer_env ();
		341
		342	// the player itself is always on a map, so we will find him here
		343	// even if our inv is in a player.
		344	if (envest->is_on_map ())
		345	if (object *pl = envest->ms ().player ())
		346	if (pl->container == env)
		347	return pl;
		348	}
		349	else
		350	{
		351	// maybe there is a player standing on the same mapspace
		352	// this will catch the case where "this" is a player
		353	if (object *pl = ms ().player ())
		354	if (!pl->container || this == pl->container)
		355	return pl;
		356	}
		357	}
		358
		359	return 0;
		360	}
		361
		362	// adjust weight per container type ("of holding")
		363	static sint32
		364	weight_adjust_for (object *op, sint32 weight)
		365	{
		366	return op->type == CONTAINER
		367	? lerp (weight, 0, 100, 0, 100 - op->stats.Str)
		368	: weight;
		369	}
		370
316	/*	371	/*
		372	* adjust_weight(object, weight) adds the specified weight to an object,
		373	* and also updates how much the environment(s) is/are carrying.
		374	*/
		375	static void
		376	adjust_weight (object *op, sint32 weight)
		377	{
		378	while (op)
		379	{
		380	// adjust by actual difference to account for rounding errors
		381	// i.e. (w2 - w1) / f != w2 / f - w1 / f and the latter is correct
		382	weight = weight_adjust_for (op, op->carrying)
		383	- weight_adjust_for (op, op->carrying - weight);
		384
		385	if (!weight)
		386	return;
		387
		388	op->carrying += weight;
		389
		390	if (object *pl = op->visible_to ())
		391	if (pl != op) // player is handled lazily
		392	esrv_update_item (UPD_WEIGHT, pl, op);
		393
		394	op = op->env;
		395	}
		396	}
		397
		398	/*
317	* sum_weight() is a recursive function which calculates the weight	399	* this is a recursive function which calculates the weight
318	* an object is carrying. It goes through in figures out how much	400	* an object is carrying. It goes through op and figures out how much
319	* containers are carrying, and sums it up.	401	* containers are carrying, and sums it up.
320	*/	402	*/
321	long	403	void
322	sum_weight (object *op)	404	object::update_weight ()
323	{	405	{
324	long sum;	406	sint32 sum = 0;
325	object *inv;
326		407
327	for (sum = 0, inv = op->inv; inv != NULL; inv = inv->below)	408	for (object *op = inv; op; op = op->below)
328	{	409	{
329	if (inv->inv)	410	if (op->inv)
330	sum_weight (inv);	411	op->update_weight ();
331	sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1);	412
		413	sum += op->total_weight ();
		414	}
		415
		416	sum = weight_adjust_for (this, sum);
		417
		418	if (sum != carrying)
332	}	419	{
333
334	if (op->type == CONTAINER && op->stats.Str)
335	sum = (sum * (100 - op->stats.Str)) / 100;
336
337	if (op->carrying != sum)
338	op->carrying = sum;	420	carrying = sum;
339		421
340	return sum;	422	if (object *pl = visible_to ())
		423	if (pl != this) // player is handled lazily
		424	esrv_update_item (UPD_WEIGHT, pl, this);
		425	}
341	}	426	}
342		427
343	/**	428	/*
344	* Return the outermost environment object for a given object.	429	* Used by: Server DM commands: dumpbelow, dump. Some error messages.
345	*/	430	*/
346
347	object *
348	object_get_env_recursive (object *op)
349	{
350	while (op->env != NULL)
351	op = op->env;
352	return op;
353	}
354
355	/*
356	* Used by: Crossedit: dump. Server DM commands: dumpbelow, dump.
357	* Some error messages.
358	* The result of the dump is stored in the static global errmsg array.
359	*/
360
361	char *	431	char *
362	dump_object (object *op)	432	dump_object (object *op)
363	{	433	{
364	if (!op)	434	if (!op)
365	return strdup ("[NULLOBJ]");	435	return strdup ("[NULLOBJ]");
366		436
367	object_freezer freezer;	437	object_freezer freezer;
368	save_object (freezer, op, 1);	438	op->write (freezer);
369	return freezer.as_string ();	439	return freezer.as_string ();
370	}	440	}
371		441
372	/*	442	/*
373	* get_nearest_part(multi-object, object 2) returns the part of the	443	* get_nearest_part(multi-object, object 2) returns the part of the
374	* multi-object 1 which is closest to the second object.	444	* multi-object 1 which is closest to the second object.
375	* If it's not a multi-object, it is returned.	445	* If it's not a multi-object, it is returned.
376	*/	446	*/
377
378	object *	447	object *
379	get_nearest_part (object *op, const object *pl)	448	get_nearest_part (object *op, const object *pl)
380	{	449	{
381	object *tmp, *closest;	450	object *tmp, *closest;
382	int last_dist, i;	451	int last_dist, i;
383		452
384	if (op->more == NULL)	453	if (!op->more)
385	return op;	454	return op;
		455
386	for (last_dist = distance (op, pl), closest = op, tmp = op->more; tmp != NULL; tmp = tmp->more)	456	for (last_dist = distance (op, pl), closest = op, tmp = op->more;
		457	tmp;
		458	tmp = tmp->more)
387	if ((i = distance (tmp, pl)) < last_dist)	459	if ((i = distance (tmp, pl)) < last_dist)
388	closest = tmp, last_dist = i;	460	closest = tmp, last_dist = i;
		461
389	return closest;	462	return closest;
390	}	463	}
391		464
392	/*	465	/*
393	* Returns the object which has the count-variable equal to the argument.	466	* Returns the object which has the count-variable equal to the argument.
		467	* VERRRY slow.
394	*/	468	*/
395
396	object *	469	object *
397	find_object (tag_t i)	470	find_object (tag_t i)
398	{	471	{
399	for (object *op = object::first; op; op = op->next)	472	for_all_objects (op)
400	if (op->count == i)	473	if (op->count == i)
401	return op;	474	return op;
402		475
403	return 0;	476	return 0;
404	}	477	}
405		478
406	/*	479	/*
407	* Returns the first object which has a name equal to the argument.	480	* Returns the first object which has a name equal to the argument.
408	* Used only by the patch command, but not all that useful.	481	* Used only by the patch command, but not all that useful.
409	* Enables features like "patch <name-of-other-player> food 999"	482	* Enables features like "patch <name-of-other-player> food 999"
410	*/	483	*/
411
412	object *	484	object *
413	find_object_name (const char *str)	485	find_object_name (const char *str)
414	{	486	{
415	shstr_cmp str_ (str);	487	shstr_cmp str_ (str);
416	object *op;
417		488
418	for (op = object::first; op != NULL; op = op->next)	489	if (str_)
		490	for_all_objects (op)
419	if (op->name == str_)	491	if (op->name == str_)
420	break;	492	return op;
421		493
422	return op;	494	return 0;
423	}
424
425	void
426	free_all_object_data ()
427	{
428	LOG (llevDebug, "%d allocated objects\n", nrofallocobjects);
429	}	495	}
430		496
431	/*	497	/*
432	* Sets the owner and sets the skill and exp pointers to owner's current	498	* Sets the owner and sets the skill and exp pointers to owner's current
433	* skill and experience objects.	499	* skill and experience objects.
		500	* ACTUALLY NO! investigate! TODO
434	*/	501	*/
435	void	502	void
436	object::set_owner (object *owner)	503	object::set_owner (object *owner)
437	{	504	{
		505	// allow objects which own objects
438	if (!owner)	506	if (owner)
439	return;
440
441	/* next line added to allow objects which own objects */
442	/* Add a check for ownercounts in here, as I got into an endless loop
443	* with the fireball owning a poison cloud which then owned the
444	* fireball. I believe that was caused by one of the objects getting
445	* freed and then another object replacing it. Since the ownercounts
446	* didn't match, this check is valid and I believe that cause is valid.
447	*/
448	while (owner->owner)	507	while (owner->owner)
449	owner = owner->owner;	508	owner = owner->owner;
		509
		510	if (flag [FLAG_FREED])
		511	{
		512	LOG (llevError | logBacktrace, "tried to set owner of %s to %s\n", debug_desc (), owner->debug_desc ());
		513	return;
		514	}
450		515
451	this->owner = owner;	516	this->owner = owner;
		517	}
		518
		519	int
		520	object::slottype () const
		521	{
		522	if (type == SKILL)
		523	{
		524	if (IS_COMBAT_SKILL (subtype)) return slot_combat;
		525	if (IS_RANGED_SKILL (subtype)) return slot_ranged;
		526	}
		527	else
		528	{
		529	if (slot [body_combat].info) return slot_combat;
		530	if (slot [body_range ].info) return slot_ranged;
		531	}
		532
		533	return slot_none;
		534	}
		535
		536	bool
		537	object::change_weapon (object *ob)
		538	{
		539	if (current_weapon == ob)
		540	return true;
		541
		542	if (chosen_skill)
		543	chosen_skill->flag [FLAG_APPLIED] = false;
		544
		545	current_weapon = ob;
		546	chosen_skill = !ob || ob->type == SKILL ? ob : find_skill_by_name (this, ob->skill);
		547
		548	if (chosen_skill)
		549	chosen_skill->flag [FLAG_APPLIED] = true;
		550
		551	update_stats ();
		552
		553	if (ob)
		554	{
		555	// now check wether any body locations became invalid, in which case
		556	// we cannot apply the weapon at the moment.
		557	for (int i = 0; i < NUM_BODY_LOCATIONS; ++i)
		558	if (slot[i].used < 0)
		559	{
		560	current_weapon = chosen_skill = 0;
		561	update_stats ();
		562
		563	new_draw_info_format (NDI_UNIQUE, 0, this,
		564	"You try to balance all your items at once, "
		565	"but the %s is just too much for your body. "
		566	"[You need to unapply some items first.]", &ob->name);
		567	return false;
		568	}
		569
		570	//new_draw_info_format (NDI_UNIQUE, 0, this, "You switch to your %s.", &ob->name);
		571	}
		572	else
		573	;//new_draw_info_format (NDI_UNIQUE, 0, this, "You unwield your weapons.");
		574
		575	if (ob && !ob->flag [FLAG_APPLIED] && ob->type != SPELL)
		576	{
		577	LOG (llevError | logBacktrace, "%s changed to unapplied weapon %s",
		578	&name, ob->debug_desc ());
		579	return false;
		580	}
		581
		582	return true;
452	}	583	}
453		584
454	/* Zero the key_values on op, decrementing the shared-string	585	/* Zero the key_values on op, decrementing the shared-string
455	* refcounts and freeing the links.	586	* refcounts and freeing the links.
456	*/	587	*/
457	static void	588	static void
458	free_key_values (object *op)	589	free_key_values (object *op)
459	{	590	{
460	for (key_value *i = op->key_values; i != 0;)	591	for (key_value *i = op->key_values; i; )
461	{	592	{
462	key_value *next = i->next;	593	key_value *next = i->next;
463	delete i;	594	delete i;
464		595
465	i = next;	596	i = next;
…		…
477	* will point at garbage.	608	* will point at garbage.
478	*/	609	*/
479	void	610	void
480	object::copy_to (object *dst)	611	object::copy_to (object *dst)
481	{	612	{
482	bool is_freed = QUERY_FLAG (dst, FLAG_FREED);	613	dst->remove ();
483	bool is_removed = QUERY_FLAG (dst, FLAG_REMOVED);
484
485	*(object_copy *)dst = *this;	614	*(object_copy *)dst = *this;
486		615	dst->flag [FLAG_REMOVED] = true;
487	if (is_freed)
488	SET_FLAG (dst, FLAG_FREED);
489
490	if (is_removed)
491	SET_FLAG (dst, FLAG_REMOVED);
492
493	if (speed < 0)
494	dst->speed_left = speed_left - RANDOM () % 200 / 100.0;
495		616
496	/* Copy over key_values, if any. */	617	/* Copy over key_values, if any. */
497	if (key_values)	618	if (key_values)
498	{	619	{
499	key_value *tail = 0;	620	key_value *tail = 0;
500	key_value *i;
501
502	dst->key_values = 0;	621	dst->key_values = 0;
503		622
504	for (i = key_values; i; i = i->next)	623	for (key_value *i = key_values; i; i = i->next)
505	{	624	{
506	key_value *new_link = new key_value;	625	key_value *new_link = new key_value;
507		626
508	new_link->next = 0;	627	new_link->next = 0;
509	new_link->key = i->key;	628	new_link->key = i->key;
510	new_link->value = i->value;	629	new_link->value = i->value;
511		630
512	/* Try and be clever here, too. */	631	/* Try and be clever here, too. */
513	if (!dst->key_values)	632	if (!dst->key_values)
514	{	633	{
…		…
521	tail = new_link;	640	tail = new_link;
522	}	641	}
523	}	642	}
524	}	643	}
525		644
		645	if (speed < 0)
		646	dst->speed_left -= rndm ();
		647
526	dst->set_speed (dst->speed);	648	dst->set_speed (dst->speed);
		649	}
		650
		651	void
		652	object::instantiate ()
		653	{
		654	if (!uuid.seq) // HACK
		655	uuid = UUID::gen ();
		656
		657	speed_left = -0.1f;
		658	/* copy the body_info to the body_used - this is only really
		659	* need for monsters, but doesn't hurt to do it for everything.
		660	* by doing so, when a monster is created, it has good starting
		661	* values for the body_used info, so when items are created
		662	* for it, they can be properly equipped.
		663	*/
		664	for (int i = NUM_BODY_LOCATIONS; i--; )
		665	slot[i].used = slot[i].info;
		666
		667	attachable::instantiate ();
527	}	668	}
528		669
529	object *	670	object *
530	object::clone ()	671	object::clone ()
531	{	672	{
532	object *neu = create ();	673	object *neu = create ();
533	copy_to (neu);	674	copy_to (neu);
		675	neu->map = map; // not copied by copy_to
534	return neu;	676	return neu;
535	}	677	}
536		678
537	/*	679	/*
538	* If an object with the IS_TURNABLE() flag needs to be turned due	680	* If an object with the IS_TURNABLE() flag needs to be turned due
…		…
589	* UP_OBJ_FACE: only the objects face has changed.	731	* UP_OBJ_FACE: only the objects face has changed.
590	*/	732	*/
591	void	733	void
592	update_object (object *op, int action)	734	update_object (object *op, int action)
593	{	735	{
594	MoveType move_on, move_off, move_block, move_slow;	736	if (!op)
595
596	if (op == NULL)
597	{	737	{
598	/* this should never happen */	738	/* this should never happen */
599	LOG (llevDebug, "update_object() called for NULL object.\n");	739	LOG (llevError | logBacktrace, "update_object() called for NULL object.\n");
600	return;	740	return;
601	}	741	}
602		742
603	if (op->env)	743	if (!op->is_on_map ())
604	{	744	{
605	/* Animation is currently handled by client, so nothing	745	/* Animation is currently handled by client, so nothing
606	* to do in this case.	746	* to do in this case.
607	*/	747	*/
608	return;	748	return;
609	}	749	}
610
611	/* If the map is saving, don't do anything as everything is
612	* going to get freed anyways.
613	*/
614	if (!op->map || op->map->in_memory == MAP_SAVING)
615	return;
616		750
617	/* make sure the object is within map boundaries */	751	/* make sure the object is within map boundaries */
618	if (op->x < 0 || op->x >= op->map->width || op->y < 0 || op->y >= op->map->height)	752	if (op->x < 0 || op->x >= op->map->width || op->y < 0 || op->y >= op->map->height)
619	{	753	{
620	LOG (llevError, "update_object() called for object out of map!\n");	754	LOG (llevError, "update_object() called for object out of map!\n");
…		…
624	return;	758	return;
625	}	759	}
626		760
627	mapspace &m = op->ms ();	761	mapspace &m = op->ms ();
628		762
629	if (m.flags_ & P_NEED_UPDATE)	763	if (!(m.flags_ & P_UPTODATE))
630	/* nop */;	764	/* nop */;
631	else if (action == UP_OBJ_INSERT)	765	else if (action == UP_OBJ_INSERT)
632	{	766	{
633	// this is likely overkill, TODO: revisit (schmorp)	767	// this is likely overkill, TODO: revisit (schmorp)
634	if ((QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(m.flags_ & P_BLOCKSVIEW))	768	if ((QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(m.flags_ & P_BLOCKSVIEW))
…		…
643	/* This isn't perfect, but I don't expect a lot of objects to	777	/* This isn't perfect, but I don't expect a lot of objects to
644	* to have move_allow right now.	778	* to have move_allow right now.
645	*/	779	*/
646	|| ((m.move_block | op->move_block) & ~op->move_allow) != m.move_block	780	|| ((m.move_block | op->move_block) & ~op->move_allow) != m.move_block
647	|| 1) // the above is not strong enough a test to skip updating. los maybe? TODO (Schmorp)	781	|| 1) // the above is not strong enough a test to skip updating. los maybe? TODO (Schmorp)
648	m.flags_ = P_NEED_UPDATE;	782	m.flags_ = 0;
649	}	783	}
650	/* if the object is being removed, we can't make intelligent	784	/* if the object is being removed, we can't make intelligent
651	* decisions, because remove_ob can't really pass the object	785	* decisions, because remove_ob can't really pass the object
652	* that is being removed.	786	* that is being removed.
653	*/	787	*/
654	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)	788	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)
655	m.flags_ = P_NEED_UPDATE;	789	m.flags_ = 0;
656	else if (action == UP_OBJ_FACE)	790	else if (action == UP_OBJ_FACE)
657	/* Nothing to do for that case */ ;	791	/* Nothing to do for that case */ ;
658	else	792	else
659	LOG (llevError, "update_object called with invalid action: %d\n", action);	793	LOG (llevError, "update_object called with invalid action: %d\n", action);
660		794
661	if (op->more)	795	if (op->more)
662	update_object (op->more, action);	796	update_object (op->more, action);
663	}	797	}
664		798
665	object *object::first;
666
667	object::object ()	799	object::object ()
668	{	800	{
669	SET_FLAG (this, FLAG_REMOVED);	801	SET_FLAG (this, FLAG_REMOVED);
670		802
671	expmul = 1.0;	803	expmul = 1.0;
672	face = blank_face;	804	face = blank_face;
673	}	805	}
674		806
675	object::~object ()	807	object::~object ()
676	{	808	{
		809	unlink ();
		810
677	free_key_values (this);	811	free_key_values (this);
678	}	812	}
679		813
		814	static int object_count;
		815
680	void object::link ()	816	void object::link ()
681	{	817	{
		818	assert (!index);//D
		819	uuid = UUID::gen ();
682	count = ++ob_count;	820	count = ++object_count;
683	uuid = gen_uuid ();
684		821
685	prev = 0;	822	refcnt_inc ();
686	next = object::first;	823	objects.insert (this);
687
688	if (object::first)
689	object::first->prev = this;
690
691	object::first = this;
692	}	824	}
693		825
694	void object::unlink ()	826	void object::unlink ()
695	{	827	{
696	if (this == object::first)	828	if (!index)
697	object::first = next;	829	return;
698		830
699	/* Remove this object from the list of used objects */	831	objects.erase (this);
700	if (prev) prev->next = next;	832	refcnt_dec ();
701	if (next) next->prev = prev;
702
703	prev = 0;
704	next = 0;
705	}
706
707	bool
708	object::active () const
709	{
710	return active_next || active_prev || this == active_objects;
711	}	833	}
712		834
713	void	835	void
714	object::activate ()	836	object::activate ()
715	{	837	{
716	/* If already on active list, don't do anything */	838	/* If already on active list, don't do anything */
717	if (active ())	839	if (active)
718	return;	840	return;
719		841
720	if (has_active_speed ())	842	if (has_active_speed ())
721	{	843	actives.insert (this);
722	/* process_events() expects us to insert the object at the beginning
723	* of the list. */
724	active_next = active_objects;
725
726	if (active_next)
727	active_next->active_prev = this;
728
729	active_objects = this;
730	}
731	}	844	}
732		845
733	void	846	void
734	object::activate_recursive ()	847	object::activate_recursive ()
735	{	848	{
736	activate ();	849	activate ();
737		850
738	for (object *op = inv; op; op = op->above)	851	for (object *op = inv; op; op = op->below)
739	op->activate_recursive ();	852	op->activate_recursive ();
740	}	853	}
741		854
742	/* This function removes object 'op' from the list of active	855	/* This function removes object 'op' from the list of active
743	* objects.	856	* objects.
…		…
749	*/	862	*/
750	void	863	void
751	object::deactivate ()	864	object::deactivate ()
752	{	865	{
753	/* If not on the active list, nothing needs to be done */	866	/* If not on the active list, nothing needs to be done */
754	if (!active ())	867	if (!active)
755	return;	868	return;
756		869
757	if (active_prev == 0)	870	actives.erase (this);
758	{
759	active_objects = active_next;
760	if (active_next)
761	active_next->active_prev = 0;
762	}
763	else
764	{
765	active_prev->active_next = active_next;
766	if (active_next)
767	active_next->active_prev = active_prev;
768	}
769
770	active_next = 0;
771	active_prev = 0;
772	}	871	}
773		872
774	void	873	void
775	object::deactivate_recursive ()	874	object::deactivate_recursive ()
776	{	875	{
777	for (object *op = inv; op; op = op->above)	876	for (object *op = inv; op; op = op->below)
778	op->deactivate_recursive ();	877	op->deactivate_recursive ();
779		878
780	deactivate ();	879	deactivate ();
		880	}
		881
		882	void
		883	object::set_flag_inv (int flag, int value)
		884	{
		885	for (object *op = inv; op; op = op->below)
		886	{
		887	op->flag [flag] = value;
		888	op->set_flag_inv (flag, value);
		889	}
781	}	890	}
782		891
783	/*	892	/*
784	* Remove and free all objects in the inventory of the given object.	893	* Remove and free all objects in the inventory of the given object.
785	* object.c ?	894	* object.c ?
…		…
788	object::destroy_inv (bool drop_to_ground)	897	object::destroy_inv (bool drop_to_ground)
789	{	898	{
790	// need to check first, because the checks below might segfault	899	// need to check first, because the checks below might segfault
791	// as we might be on an invalid mapspace and crossfire code	900	// as we might be on an invalid mapspace and crossfire code
792	// is too buggy to ensure that the inventory is empty.	901	// is too buggy to ensure that the inventory is empty.
793	// corollary: if you create arrows etc. with stuff in tis inventory,	902	// corollary: if you create arrows etc. with stuff in its inventory,
794	// cf will crash below with off-map x and y	903	// cf will crash below with off-map x and y
795	if (!inv)	904	if (!inv)
796	return;	905	return;
797		906
798	/* Only if the space blocks everything do we not process -	907	/* Only if the space blocks everything do we not process -
799	* if some form of movement is allowed, let objects	908	* if some form of movement is allowed, let objects
800	* drop on that space.	909	* drop on that space.
801	*/	910	*/
802	if (!drop_to_ground	911	if (!drop_to_ground
803	|| !map	912	|| !map
804	|| map->in_memory != MAP_IN_MEMORY	913	|| map->in_memory != MAP_ACTIVE
		914	|| map->no_drop
805	|| ms ().move_block == MOVE_ALL)	915	|| ms ().move_block == MOVE_ALL)
806	{	916	{
807	while (inv)	917	while (inv)
808	{	918	{
809	inv->destroy_inv (drop_to_ground);	919	inv->destroy_inv (false);
810	inv->destroy ();	920	inv->destroy ();
811	}	921	}
812	}	922	}
813	else	923	else
814	{ /* Put objects in inventory onto this space */	924	{ /* Put objects in inventory onto this space */
…		…
818		928
819	if (op->flag [FLAG_STARTEQUIP]	929	if (op->flag [FLAG_STARTEQUIP]
820	|| op->flag [FLAG_NO_DROP]	930	|| op->flag [FLAG_NO_DROP]
821	|| op->type == RUNE	931	|| op->type == RUNE
822	|| op->type == TRAP	932	|| op->type == TRAP
823	|| op->flag [FLAG_IS_A_TEMPLATE])	933	|| op->flag [FLAG_IS_A_TEMPLATE]
		934	|| op->flag [FLAG_DESTROY_ON_DEATH])
824	op->destroy ();	935	op->destroy (true);
825	else	936	else
826	map->insert (op, x, y);	937	map->insert (op, x, y);
827	}	938	}
828	}	939	}
829	}	940	}
…		…
833	object *op = new object;	944	object *op = new object;
834	op->link ();	945	op->link ();
835	return op;	946	return op;
836	}	947	}
837		948
		949	static struct freed_map : maptile
		950	{
		951	freed_map ()
		952	{
		953	path = "<freed objects map>";
		954	name = "/internal/freed_objects_map";
		955	width = 3;
		956	height = 3;
		957	no_drop = 1;
		958	no_reset = 1;
		959
		960	alloc ();
		961	in_memory = MAP_ACTIVE;
		962	}
		963
		964	~freed_map ()
		965	{
		966	destroy ();
		967	}
		968	} freed_map; // freed objects are moved here to avoid crashes
		969
838	void	970	void
839	object::do_destroy ()	971	object::do_destroy ()
840	{	972	{
841	if (flag [FLAG_IS_LINKED])	973	if (flag [FLAG_IS_LINKED])
842	remove_button_link (this);	974	remove_button_link (this);
843		975
844	if (flag [FLAG_FRIENDLY])	976	if (flag [FLAG_FRIENDLY])
845	remove_friendly_object (this);	977	remove_friendly_object (this);
846		978
847	if (!flag [FLAG_REMOVED])
848	remove ();	979	remove ();
849		980
850	if (flag [FLAG_FREED])	981	attachable::do_destroy ();
851	return;
852		982
853	set_speed (0);	983	deactivate ();
		984	unlink ();
854		985
855	flag [FLAG_FREED] = 1;	986	flag [FLAG_FREED] = 1;
856		987
857	attachable::do_destroy ();
858
859	destroy_inv (true);
860	unlink ();
861
862	// hack to ensure that freed objects still have a valid map	988	// hack to ensure that freed objects still have a valid map
863	{
864	static maptile *freed_map; // freed objects are moved here to avoid crashes
865
866	if (!freed_map)
867	{
868	freed_map = new maptile;
869
870	freed_map->name = "/internal/freed_objects_map";
871	freed_map->width = 3;
872	freed_map->height = 3;
873
874	freed_map->alloc ();
875	}
876
877	map = freed_map;	989	map = &freed_map;
878	x = 1;	990	x = 1;
879	y = 1;	991	y = 1;
880	}
881
882	head = 0;
883		992
884	if (more)	993	if (more)
885	{	994	{
886	more->destroy ();	995	more->destroy ();
887	more = 0;	996	more = 0;
888	}	997	}
889		998
		999	head = 0;
		1000
890	// clear those pointers that likely might have circular references to us	1001	// clear those pointers that likely might cause circular references
891	owner = 0;	1002	owner = 0;
892	enemy = 0;	1003	enemy = 0;
893	attacked_by = 0;	1004	attacked_by = 0;
894		1005	current_weapon = 0;
895	// only relevant for players(?), but make sure of it anyways
896	contr = 0;
897	}	1006	}
898		1007
899	void	1008	void
900	object::destroy (bool destroy_inventory)	1009	object::destroy (bool destroy_inventory)
901	{	1010	{
902	if (destroyed ())	1011	if (destroyed ())
903	return;	1012	return;
904		1013
		1014	if (!is_head () && !head->destroyed ())
		1015	{
		1016	LOG (llevError | logBacktrace, "tried to destroy the tail of an object");
		1017	head->destroy (destroy_inventory);
		1018	return;
		1019	}
		1020
905	if (destroy_inventory)	1021	destroy_inv (!destroy_inventory);
906	destroy_inv (false);	1022
		1023	if (is_head ())
		1024	if (sound_destroy)
		1025	play_sound (sound_destroy);
		1026	else if (flag [FLAG_MONSTER])
		1027	play_sound (sound_find ("monster_destroy")); // quick hack, too lazy to create a generic mechanism
907		1028
908	attachable::destroy ();	1029	attachable::destroy ();
909	}
910
911	/*
912	* sub_weight() recursively (outwards) subtracts a number from the
913	* weight of an object (and what is carried by it's environment(s)).
914	*/
915	void
916	sub_weight (object *op, signed long weight)
917	{
918	while (op != NULL)
919	{
920	if (op->type == CONTAINER)
921	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
922
923	op->carrying -= weight;
924	op = op->env;
925	}
926	}	1030	}
927		1031
928	/* op->remove ():	1032	/* op->remove ():
929	* This function removes the object op from the linked list of objects	1033	* This function removes the object op from the linked list of objects
930	* which it is currently tied to. When this function is done, the	1034	* which it is currently tied to. When this function is done, the
931	* object will have no environment. If the object previously had an	1035	* object will have no environment. If the object previously had an
932	* environment, the x and y coordinates will be updated to	1036	* environment, the x and y coordinates will be updated to
933	* the previous environment.	1037	* the previous environment.
934	* Beware: This function is called from the editor as well!
935	*/	1038	*/
936	void	1039	void
937	object::remove ()	1040	object::do_remove ()
938	{	1041	{
939	object *tmp, *last = 0;	1042	object *tmp, *last = 0;
940	object *otmp;	1043	object *otmp;
941		1044
942	if (QUERY_FLAG (this, FLAG_REMOVED))	1045	if (flag [FLAG_REMOVED])
943	return;	1046	return;
944		1047
945	SET_FLAG (this, FLAG_REMOVED);
946	INVOKE_OBJECT (REMOVE, this);	1048	INVOKE_OBJECT (REMOVE, this);
		1049
		1050	flag [FLAG_REMOVED] = true;
947		1051
948	if (more)	1052	if (more)
949	more->remove ();	1053	more->remove ();
950		1054
951	/*	1055	/*
952	* In this case, the object to be removed is in someones	1056	* In this case, the object to be removed is in someones
953	* inventory.	1057	* inventory.
954	*/	1058	*/
955	if (env)	1059	if (env)
956	{	1060	{
957	if (nrof)	1061	flag [FLAG_REMOVED] = false; // hack around the issue of visible_to checking flag_removed
958	sub_weight (env, weight * nrof);	1062	if (object *pl = visible_to ())
959	else	1063	esrv_del_item (pl->contr, count);
960	sub_weight (env, weight + carrying);	1064	flag [FLAG_REMOVED] = true; // hack around the issue of visible_to checking flag_removed
		1065
		1066	adjust_weight (env, -total_weight ());
		1067
		1068	/* we set up values so that it could be inserted into
		1069	* the map, but we don't actually do that - it is up
		1070	* to the caller to decide what we want to do.
		1071	*/
		1072	map = env->map;
		1073	x = env->x;
		1074	y = env->y;
		1075
		1076	// make sure cmov optimisation is applicable
		1077	*(above ? &above->below : &env->inv) = below;
		1078	*(below ? &below->above : &above ) = above; // &above is just a dummy
		1079
		1080	above = 0;
		1081	below = 0;
		1082	env = 0;
961		1083
962	/* NO_FIX_PLAYER is set when a great many changes are being	1084	/* NO_FIX_PLAYER is set when a great many changes are being
963	* made to players inventory. If set, avoiding the call	1085	* made to players inventory. If set, avoiding the call
964	* to save cpu time.	1086	* to save cpu time.
965	*/	1087	*/
966	if ((otmp = in_player ()) && otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))	1088	if ((otmp = in_player ()) && otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
967	otmp->update_stats ();	1089	otmp->update_stats ();
968
969	if (above)
970	above->below = below;
971	else
972	env->inv = below;
973
974	if (below)
975	below->above = above;
976
977	/* we set up values so that it could be inserted into
978	* the map, but we don't actually do that - it is up
979	* to the caller to decide what we want to do.
980	*/
981	x = env->x, y = env->y;
982	map = env->map;
983	above = 0, below = 0;
984	env = 0;
985	}	1090	}
986	else if (map)	1091	else if (map)
987	{	1092	{
988	if (type == PLAYER)	1093	map->dirty = true;
		1094	mapspace &ms = this->ms ();
		1095
		1096	if (object *pl = ms.player ())
989	{	1097	{
		1098	if (type == PLAYER) // this == pl(!)
		1099	{
		1100	// leaving a spot always closes any open container on the ground
		1101	if (container && !container->env)
		1102	// this causes spurious floorbox updates, but it ensures
		1103	// that the CLOSE event is being sent.
		1104	close_container ();
		1105
990	--map->players;	1106	--map->players;
991	map->last_access = runtime;	1107	map->touch ();
		1108	}
		1109	else if (pl->container == this)
		1110	{
		1111	// removing a container should close it
		1112	close_container ();
		1113	}
		1114
		1115	esrv_del_item (pl->contr, count);
992	}	1116	}
993		1117
994	map->dirty = true;
995
996	/* link the object above us */	1118	/* link the object above us */
997	if (above)	1119	// re-link, make sure compiler can easily use cmove
998	above->below = below;	1120	*(above ? &above->below : &ms.top) = below;
999	else	1121	*(below ? &below->above : &ms.bot) = above;
1000	map->at (x, y).top = below; /* we were top, set new top */
1001
1002	/* Relink the object below us, if there is one */
1003	if (below)
1004	below->above = above;
1005	else
1006	{
1007	/* Nothing below, which means we need to relink map object for this space
1008	* use translated coordinates in case some oddness with map tiling is
1009	* evident
1010	*/
1011	if (GET_MAP_OB (map, x, y) != this)
1012	{
1013	char *dump = dump_object (this);
1014	LOG (llevError,
1015	"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);
1016	free (dump);
1017	dump = dump_object (GET_MAP_OB (map, x, y));
1018	LOG (llevError, "%s\n", dump);
1019	free (dump);
1020	}
1021
1022	map->at (x, y).bot = above; /* goes on above it. */
1023	}
1024		1122
1025	above = 0;	1123	above = 0;
1026	below = 0;	1124	below = 0;
1027		1125
1028	if (map->in_memory == MAP_SAVING)	1126	if (map->in_memory == MAP_SAVING)
1029	return;	1127	return;
1030		1128
1031	int check_walk_off = !flag [FLAG_NO_APPLY];	1129	int check_walk_off = !flag [FLAG_NO_APPLY];
1032		1130
		1131	if (object *pl = ms.player ())
		1132	{
		1133	if (pl->container == this)
		1134	/* If a container that the player is currently using somehow gets
		1135	* removed (most likely destroyed), update the player view
		1136	* appropriately.
		1137	*/
		1138	pl->close_container ();
		1139
		1140	//TODO: the floorbox prev/next might need updating
		1141	//esrv_del_item (pl->contr, count);
		1142	//TODO: update floorbox to preserve ordering
		1143	if (pl->contr->ns)
		1144	pl->contr->ns->floorbox_update ();
		1145	}
		1146
1033	for (tmp = map->at (x, y).bot; tmp; tmp = tmp->above)	1147	for (tmp = ms.bot; tmp; tmp = tmp->above)
1034	{	1148	{
1035	/* No point updating the players look faces if he is the object	1149	/* No point updating the players look faces if he is the object
1036	* being removed.	1150	* being removed.
1037	*/	1151	*/
1038
1039	if (tmp->type == PLAYER && tmp != this)
1040	{
1041	/* If a container that the player is currently using somehow gets
1042	* removed (most likely destroyed), update the player view
1043	* appropriately.
1044	*/
1045	if (tmp->container == this)
1046	{
1047	flag [FLAG_APPLIED] = 0;
1048	tmp->container = 0;
1049	}
1050
1051	if (tmp->contr->ns)
1052	tmp->contr->ns->floorbox_update ();
1053	}
1054		1152
1055	/* See if object moving off should effect something */	1153	/* See if object moving off should effect something */
1056	if (check_walk_off	1154	if (check_walk_off
1057	&& ((move_type & tmp->move_off)	1155	&& ((move_type & tmp->move_off)
1058	&& (move_type & ~tmp->move_off & ~tmp->move_block) == 0))	1156	&& (move_type & ~tmp->move_off & ~tmp->move_block) == 0))
…		…
1061		1159
1062	if (destroyed ())	1160	if (destroyed ())
1063	LOG (llevError, "BUG: remove_ob(): name %s, destroyed leaving object\n", tmp->debug_desc ());	1161	LOG (llevError, "BUG: remove_ob(): name %s, destroyed leaving object\n", tmp->debug_desc ());
1064	}	1162	}
1065		1163
1066	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */
1067	//TODO: why is this horrible hacka fix? get rid of this code=bug! (schmorp)
1068	if (tmp->above == tmp)
1069	tmp->above = 0;
1070
1071	last = tmp;	1164	last = tmp;
1072	}	1165	}
1073		1166
1074	/* last == NULL if there are no objects on this space */	1167	/* last == NULL if there are no objects on this space */
1075	//TODO: this makes little sense, why only update the topmost object?	1168	//TODO: this makes little sense, why only update the topmost object?
1076	if (!last)	1169	if (!last)
1077	map->at (x, y).flags_ = P_NEED_UPDATE;	1170	map->at (x, y).flags_ = 0;
1078	else	1171	else
1079	update_object (last, UP_OBJ_REMOVE);	1172	update_object (last, UP_OBJ_REMOVE);
1080		1173
1081	if (flag [FLAG_BLOCKSVIEW] || glow_radius)	1174	if (flag [FLAG_BLOCKSVIEW] || glow_radius)
1082	update_all_los (map, x, y);	1175	update_all_los (map, x, y);
…		…
1095	merge_ob (object *op, object *top)	1188	merge_ob (object *op, object *top)
1096	{	1189	{
1097	if (!op->nrof)	1190	if (!op->nrof)
1098	return 0;	1191	return 0;
1099		1192
1100	if (top)	1193	if (!top)
1101	for (top = op; top && top->above; top = top->above)	1194	for (top = op; top && top->above; top = top->above)
1102	;	1195	;
1103		1196
1104	for (; top; top = top->below)	1197	for (; top; top = top->below)
1105	{
1106	if (top == op)
1107	continue;
1108
1109	if (object::can_merge (op, top))	1198	if (object::can_merge (op, top))
1110	{	1199	{
1111	top->nrof += op->nrof;	1200	top->nrof += op->nrof;
1112		1201
1113	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/	1202	if (object *pl = top->visible_to ())
1114	op->weight = 0; /* Don't want any adjustements now */	1203	esrv_update_item (UPD_NROF, pl, top);
		1204
		1205	op->weight = 0; // cancel the addition above
		1206	op->carrying = 0; // must be 0 already
		1207
1115	op->destroy ();	1208	op->destroy (1);
		1209
1116	return top;	1210	return top;
1117	}	1211	}
1118	}
1119		1212
1120	return 0;	1213	return 0;
1121	}	1214	}
1122		1215
		1216	void
		1217	object::expand_tail ()
		1218	{
		1219	if (more)
		1220	return;
		1221
		1222	object *prev = this;
		1223
		1224	for (archetype *at = (archetype *)arch->more; at; at = (archetype *)at->more)
		1225	{
		1226	object *op = arch_to_object (at);
		1227
		1228	op->name = name;
		1229	op->name_pl = name_pl;
		1230	op->title = title;
		1231
		1232	op->head = this;
		1233	prev->more = op;
		1234
		1235	prev = op;
		1236	}
		1237	}
		1238
1123	/*	1239	/*
1124	* same as insert_ob_in_map except it handle separate coordinates and do a clean	1240	* same as insert_ob_in_map except it handles separate coordinates and does a clean
1125	* job preparing multi-part monsters	1241	* job preparing multi-part monsters.
1126	*/	1242	*/
1127	object *	1243	object *
1128	insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)	1244	insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)
1129	{	1245	{
1130	for (object *tmp = op->head_ (); tmp; tmp = tmp->more)	1246	for (object *tmp = op->head_ (); tmp; tmp = tmp->more)
1131	{	1247	{
1132	tmp->x = x + tmp->arch->clone.x;	1248	tmp->x = x + tmp->arch->x;
1133	tmp->y = y + tmp->arch->clone.y;	1249	tmp->y = y + tmp->arch->y;
1134	}	1250	}
1135		1251
1136	return insert_ob_in_map (op, m, originator, flag);	1252	return insert_ob_in_map (op, m, originator, flag);
1137	}	1253	}
1138		1254
…		…
1157	* just 'op' otherwise	1273	* just 'op' otherwise
1158	*/	1274	*/
1159	object *	1275	object *
1160	insert_ob_in_map (object *op, maptile *m, object *originator, int flag)	1276	insert_ob_in_map (object *op, maptile *m, object *originator, int flag)
1161	{	1277	{
1162	object *tmp, *top, *floor = NULL;	1278	op->remove ();
1163	sint16 x, y;
1164
1165	if (QUERY_FLAG (op, FLAG_FREED))
1166	{
1167	LOG (llevError, "Trying to insert freed object!\n");
1168	return NULL;
1169	}
1170
1171	if (!m)
1172	{
1173	char *dump = dump_object (op);
1174	LOG (llevError, "Trying to insert in null-map!\n%s\n", dump);
1175	free (dump);
1176	return op;
1177	}
1178
1179	if (out_of_map (m, op->x, op->y))
1180	{
1181	char *dump = dump_object (op);
1182	LOG (llevError, "Trying to insert object outside the map.\n%s\n", dump);
1183	#ifdef MANY_CORES
1184	/* Better to catch this here, as otherwise the next use of this object
1185	* is likely to cause a crash. Better to find out where it is getting
1186	* improperly inserted.
1187	*/
1188	abort ();
1189	#endif
1190	free (dump);
1191	return op;
1192	}
1193
1194	if (!QUERY_FLAG (op, FLAG_REMOVED))
1195	{
1196	char *dump = dump_object (op);
1197	LOG (llevError, "Trying to insert (map) inserted object.\n%s\n", dump);
1198	free (dump);
1199	return op;
1200	}
1201
1202	if (op->more)
1203	{
1204	/* The part may be on a different map. */
1205
1206	object *more = op->more;
1207
1208	/* We really need the caller to normalize coordinates - if
1209	* we set the map, that doesn't work if the location is within
1210	* a map and this is straddling an edge. So only if coordinate
1211	* is clear wrong do we normalize it.
1212	*/
1213	if (OUT_OF_REAL_MAP (more->map, more->x, more->y))
1214	more->map = get_map_from_coord (m, &more->x, &more->y);
1215	else if (!more->map)
1216	{
1217	/* For backwards compatibility - when not dealing with tiled maps,
1218	* more->map should always point to the parent.
1219	*/
1220	more->map = m;
1221	}
1222
1223	if (insert_ob_in_map (more, more->map, originator, flag) == NULL)
1224	{
1225	if (!op->head)
1226	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");
1227
1228	return 0;
1229	}
1230	}
1231
1232	CLEAR_FLAG (op, FLAG_REMOVED);
1233		1279
1234	/* Ideally, the caller figures this out. However, it complicates a lot	1280	/* Ideally, the caller figures this out. However, it complicates a lot
1235	* of areas of callers (eg, anything that uses find_free_spot would now	1281	* of areas of callers (eg, anything that uses find_free_spot would now
1236	* need extra work	1282	* need extra work
1237	*/	1283	*/
1238	op->map = get_map_from_coord (m, &op->x, &op->y);	1284	if (!xy_normalise (m, op->x, op->y))
1239	x = op->x;	1285	{
1240	y = op->y;	1286	op->head_ ()->destroy (1);// remove head_ once all tail object destroyers found
		1287	return 0;
		1288	}
		1289
		1290	if (object *more = op->more)
		1291	if (!insert_ob_in_map (more, m, originator, flag))
		1292	return 0;
		1293
		1294	CLEAR_FLAG (op, FLAG_REMOVED);
		1295
		1296	op->map = m;
		1297	mapspace &ms = op->ms ();
1241		1298
1242	/* this has to be done after we translate the coordinates.	1299	/* this has to be done after we translate the coordinates.
1243	*/	1300	*/
1244	if (op->nrof && !(flag & INS_NO_MERGE))	1301	if (op->nrof && !(flag & INS_NO_MERGE))
1245	for (tmp = GET_MAP_OB (op->map, x, y); tmp; tmp = tmp->above)	1302	for (object *tmp = ms.bot; tmp; tmp = tmp->above)
1246	if (object::can_merge (op, tmp))	1303	if (object::can_merge (op, tmp))
1247	{	1304	{
		1305	// TODO: we actually want to update tmp, not op,
		1306	// but some caller surely breaks when we return tmp
		1307	// from here :/
1248	op->nrof += tmp->nrof;	1308	op->nrof += tmp->nrof;
1249	tmp->destroy ();	1309	tmp->destroy (1);
1250	}	1310	}
1251		1311
1252	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */	1312	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */
1253	CLEAR_FLAG (op, FLAG_INV_LOCKED);	1313	CLEAR_FLAG (op, FLAG_INV_LOCKED);
1254		1314
…		…
1261	{	1321	{
1262	LOG (llevError, "insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");	1322	LOG (llevError, "insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");
1263	abort ();	1323	abort ();
1264	}	1324	}
1265		1325
		1326	if (!originator->is_on_map ())
		1327	LOG (llevDebug | logBacktrace, "insert_ob_in_map(%s) called with INS_BELOW_ORIGINATOR when originator '%s' not on map",
		1328	op->debug_desc (), originator->debug_desc ());
		1329
1266	op->above = originator;	1330	op->above = originator;
1267	op->below = originator->below;	1331	op->below = originator->below;
1268
1269	if (op->below)
1270	op->below->above = op;
1271	else
1272	op->ms ().bot = op;
1273
1274	/* since *below* originator, no need to update top */
1275	originator->below = op;	1332	originator->below = op;
		1333
		1334	*(op->below ? &op->below->above : &ms.bot) = op;
1276	}	1335	}
1277	else	1336	else
1278	{	1337	{
		1338	object *floor = 0;
		1339	object *top = ms.top;
		1340
1279	/* If there are other objects, then */	1341	/* If there are other objects, then */
1280	if ((!(flag & INS_MAP_LOAD)) && ((top = GET_MAP_OB (op->map, op->x, op->y)) != NULL))	1342	if (top)
1281	{	1343	{
1282	object *last = 0;
1283
1284	/*	1344	/*
1285	* If there are multiple objects on this space, we do some trickier handling.	1345	* If there are multiple objects on this space, we do some trickier handling.
1286	* We've already dealt with merging if appropriate.	1346	* We've already dealt with merging if appropriate.
1287	* Generally, we want to put the new object on top. But if	1347	* Generally, we want to put the new object on top. But if
1288	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last	1348	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last
…		…
1291	* once we get to them. This reduces the need to traverse over all of	1351	* once we get to them. This reduces the need to traverse over all of
1292	* them when adding another one - this saves quite a bit of cpu time	1352	* them when adding another one - this saves quite a bit of cpu time
1293	* when lots of spells are cast in one area. Currently, it is presumed	1353	* when lots of spells are cast in one area. Currently, it is presumed
1294	* that flying non pickable objects are spell objects.	1354	* that flying non pickable objects are spell objects.
1295	*/	1355	*/
1296	while (top)	1356	for (object *tmp = ms.bot; tmp; tmp = tmp->above)
1297	{	1357	{
1298	if (QUERY_FLAG (top, FLAG_IS_FLOOR) || QUERY_FLAG (top, FLAG_OVERLAY_FLOOR))	1358	if (QUERY_FLAG (tmp, FLAG_IS_FLOOR) || QUERY_FLAG (tmp, FLAG_OVERLAY_FLOOR))
1299	floor = top;	1359	floor = tmp;
1300		1360
1301	if (QUERY_FLAG (top, FLAG_NO_PICK) && (top->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (top, FLAG_IS_FLOOR))	1361	if (QUERY_FLAG (tmp, FLAG_NO_PICK) && (tmp->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (tmp, FLAG_IS_FLOOR))
1302	{	1362	{
1303	/* We insert above top, so we want this object below this */	1363	/* We insert above top, so we want this object below this */
1304	top = top->below;	1364	top = tmp->below;
1305	break;	1365	break;
1306	}	1366	}
1307		1367
1308	last = top;
1309	top = top->above;	1368	top = tmp;
1310	}	1369	}
1311
1312	/* Don't want top to be NULL, so set it to the last valid object */
1313	top = last;
1314		1370
1315	/* We let update_position deal with figuring out what the space	1371	/* We let update_position deal with figuring out what the space
1316	* looks like instead of lots of conditions here.	1372	* looks like instead of lots of conditions here.
1317	* makes things faster, and effectively the same result.	1373	* makes things faster, and effectively the same result.
1318	*/	1374	*/
1319		1375
1320	/* Have object 'fall below' other objects that block view.	1376	/* Have object 'fall below' other objects that block view.
1321	* Unless those objects are exits, type 66	1377	* Unless those objects are exits.
1322	* If INS_ON_TOP is used, don't do this processing	1378	* If INS_ON_TOP is used, don't do this processing
1323	* Need to find the object that in fact blocks view, otherwise	1379	* Need to find the object that in fact blocks view, otherwise
1324	* stacking is a bit odd.	1380	* stacking is a bit odd.
1325	*/	1381	*/
1326	if (!(flag & INS_ON_TOP) &&	1382	if (!(flag & INS_ON_TOP)
1327	(get_map_flags (op->map, 0, op->x, op->y, 0, 0) & P_BLOCKSVIEW) && (op->face && !op->face->visibility))	1383	&& ms.flags () & P_BLOCKSVIEW
		1384	&& (op->face && !faces [op->face].visibility))
1328	{	1385	{
		1386	object *last;
		1387
1329	for (last = top; last != floor; last = last->below)	1388	for (last = top; last != floor; last = last->below)
1330	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))	1389	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))
1331	break;	1390	break;
		1391
1332	/* Check to see if we found the object that blocks view,	1392	/* Check to see if we found the object that blocks view,
1333	* and make sure we have a below pointer for it so that	1393	* and make sure we have a below pointer for it so that
1334	* we can get inserted below this one, which requires we	1394	* we can get inserted below this one, which requires we
1335	* set top to the object below us.	1395	* set top to the object below us.
1336	*/	1396	*/
1337	if (last && last->below && last != floor)	1397	if (last && last->below && last != floor)
1338	top = last->below;	1398	top = last->below;
1339	}	1399	}
1340	} /* If objects on this space */	1400	} /* If objects on this space */
1341		1401
1342	if (flag & INS_MAP_LOAD)
1343	top = GET_MAP_TOP (op->map, op->x, op->y);
1344
1345	if (flag & INS_ABOVE_FLOOR_ONLY)	1402	if (flag & INS_ABOVE_FLOOR_ONLY)
1346	top = floor;	1403	top = floor;
1347		1404
1348	/* Top is the object that our object (op) is going to get inserted above.	1405	// insert object above top, or bottom-most if top = 0
1349	*/
1350
1351	/* First object on this space */
1352	if (!top)	1406	if (!top)
1353	{	1407	{
1354	op->above = GET_MAP_OB (op->map, op->x, op->y);
1355
1356	if (op->above)
1357	op->above->below = op;
1358
1359	op->below = 0;	1408	op->below = 0;
		1409	op->above = ms.bot;
1360	op->ms ().bot = op;	1410	ms.bot = op;
		1411
		1412	*(op->above ? &op->above->below : &ms.top) = op;
1361	}	1413	}
1362	else	1414	else
1363	{ /* get inserted into the stack above top */	1415	{
1364	op->above = top->above;	1416	op->above = top->above;
1365
1366	if (op->above)
1367	op->above->below = op;	1417	top->above = op;
1368		1418
1369	op->below = top;	1419	op->below = top;
1370	top->above = op;	1420	*(op->above ? &op->above->below : &ms.top) = op;
1371	}	1421	}
1372		1422	}
1373	if (!op->above)
1374	op->ms ().top = op;
1375	} /* else not INS_BELOW_ORIGINATOR */
1376		1423
1377	if (op->type == PLAYER)	1424	if (op->type == PLAYER)
1378	{	1425	{
1379	op->contr->do_los = 1;	1426	op->contr->do_los = 1;
1380	++op->map->players;	1427	++op->map->players;
1381	op->map->last_access = runtime;	1428	op->map->touch ();
1382	}	1429	}
1383		1430
1384	op->map->dirty = true;	1431	op->map->dirty = true;
1385		1432
1386	/* If we have a floor, we know the player, if any, will be above
1387	* it, so save a few ticks and start from there.
1388	*/
1389	if (!(flag & INS_MAP_LOAD))
1390	if (object *pl = op->ms ().player ())	1433	if (object *pl = ms.player ())
		1434	//TODO: the floorbox prev/next might need updating
		1435	//esrv_send_item (pl, op);
		1436	//TODO: update floorbox to preserve ordering
1391	if (pl->contr->ns)	1437	if (pl->contr->ns)
1392	pl->contr->ns->floorbox_update ();	1438	pl->contr->ns->floorbox_update ();
1393		1439
1394	/* If this object glows, it may affect lighting conditions that are	1440	/* If this object glows, it may affect lighting conditions that are
1395	* visible to others on this map. But update_all_los is really	1441	* visible to others on this map. But update_all_los is really
1396	* an inefficient way to do this, as it means los for all players	1442	* an inefficient way to do this, as it means los for all players
1397	* on the map will get recalculated. The players could very well	1443	* on the map will get recalculated. The players could very well
1398	* be far away from this change and not affected in any way -	1444	* be far away from this change and not affected in any way -
1399	* this should get redone to only look for players within range,	1445	* this should get redone to only look for players within range,
1400	* or just updating the P_NEED_UPDATE for spaces within this area	1446	* or just updating the P_UPTODATE for spaces within this area
1401	* of effect may be sufficient.	1447	* of effect may be sufficient.
1402	*/	1448	*/
1403	if (op->map->darkness && (op->glow_radius != 0))	1449	if (op->map->darkness && (op->glow_radius != 0))
1404	update_all_los (op->map, op->x, op->y);	1450	update_all_los (op->map, op->x, op->y);
1405		1451
…		…
1416	* blocked() and wall() work properly), and these flags are updated by	1462	* blocked() and wall() work properly), and these flags are updated by
1417	* update_object().	1463	* update_object().
1418	*/	1464	*/
1419		1465
1420	/* if this is not the head or flag has been passed, don't check walk on status */	1466	/* if this is not the head or flag has been passed, don't check walk on status */
1421	if (!(flag & INS_NO_WALK_ON) && !op->head)	1467	if (!(flag & INS_NO_WALK_ON) && op->head_ () == op)
1422	{	1468	{
1423	if (check_move_on (op, originator))	1469	if (check_move_on (op, originator))
1424	return 0;	1470	return 0;
1425		1471
1426	/* If we are a multi part object, lets work our way through the check	1472	/* If we are a multi part object, lets work our way through the check
1427	* walk on's.	1473	* walk on's.
1428	*/	1474	*/
1429	for (tmp = op->more; tmp != NULL; tmp = tmp->more)	1475	for (object *tmp = op->more; tmp; tmp = tmp->more)
1430	if (check_move_on (tmp, originator))	1476	if (check_move_on (tmp, originator))
1431	return 0;	1477	return 0;
1432	}	1478	}
1433		1479
1434	return op;	1480	return op;
…		…
1439	* op is the object to insert it under: supplies x and the map.	1485	* op is the object to insert it under: supplies x and the map.
1440	*/	1486	*/
1441	void	1487	void
1442	replace_insert_ob_in_map (const char *arch_string, object *op)	1488	replace_insert_ob_in_map (const char *arch_string, object *op)
1443	{	1489	{
1444	object *tmp, *tmp1;
1445
1446	/* first search for itself and remove any old instances */	1490	/* first search for itself and remove any old instances */
1447		1491
1448	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)	1492	for (object *tmp = op->ms ().bot; tmp; tmp = tmp->above)
1449	if (!strcmp (tmp->arch->name, arch_string)) /* same archetype */	1493	if (!strcmp (tmp->arch->archname, arch_string)) /* same archetype */
1450	tmp->destroy ();	1494	tmp->destroy (1);
1451		1495
1452	tmp1 = arch_to_object (archetype::find (arch_string));	1496	object *tmp = arch_to_object (archetype::find (arch_string));
1453		1497
1454	tmp1->x = op->x;	1498	tmp->x = op->x;
1455	tmp1->y = op->y;	1499	tmp->y = op->y;
		1500
1456	insert_ob_in_map (tmp1, op->map, op, 0);	1501	insert_ob_in_map (tmp, op->map, op, 0);
1457	}	1502	}
1458		1503
1459	object *	1504	object *
1460	object::insert_at (object *where, object *originator, int flags)	1505	object::insert_at (object *where, object *originator, int flags)
1461	{	1506	{
		1507	if (where->env)
		1508	return where->env->insert (this);
		1509	else
1462	where->map->insert (this, where->x, where->y, originator, flags);	1510	return where->map->insert (this, where->x, where->y, originator, flags);
1463	}	1511	}
1464		1512
1465	/*	1513	/*
1466	* get_split_ob(ob,nr) splits up ob into two parts. The part which
1467	* is returned contains nr objects, and the remaining parts contains
1468	* the rest (or is removed and freed if that number is 0).
1469	* On failure, NULL is returned, and the reason put into the
1470	* global static errmsg array.
1471	*/
1472	object *
1473	get_split_ob (object *orig_ob, uint32 nr)
1474	{
1475	object *newob;
1476	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);
1477
1478	if (orig_ob->nrof < nr)
1479	{
1480	sprintf (errmsg, "There are only %d %ss.", orig_ob->nrof ? orig_ob->nrof : 1, &orig_ob->name);
1481	return NULL;
1482	}
1483
1484	newob = object_create_clone (orig_ob);
1485
1486	if ((orig_ob->nrof -= nr) < 1)
1487	orig_ob->destroy (1);
1488	else if (!is_removed)
1489	{
1490	if (orig_ob->env != NULL)
1491	sub_weight (orig_ob->env, orig_ob->weight * nr);
1492	if (orig_ob->env == NULL && orig_ob->map->in_memory != MAP_IN_MEMORY)
1493	{
1494	strcpy (errmsg, "Tried to split object whose map is not in memory.");
1495	LOG (llevDebug, "Error, Tried to split object whose map is not in memory.\n");
1496	return NULL;
1497	}
1498	}
1499
1500	newob->nrof = nr;
1501
1502	return newob;
1503	}
1504
1505	/*
1506	* decrease_ob_nr(object, number) decreases a specified number from	1514	* decrease(object, number) decreases a specified number from
1507	* the amount of an object. If the amount reaches 0, the object	1515	* the amount of an object. If the amount reaches 0, the object
1508	* is subsequently removed and freed.	1516	* is subsequently removed and freed.
1509	*	1517	*
1510	* Return value: 'op' if something is left, NULL if the amount reached 0	1518	* Return value: 'op' if something is left, NULL if the amount reached 0
1511	*/	1519	*/
		1520	bool
		1521	object::decrease (sint32 nr)
		1522	{
		1523	if (!nr)
		1524	return true;
1512		1525
		1526	nr = min (nr, nrof);
		1527
		1528	nrof -= nr;
		1529
		1530	if (nrof)
		1531	{
		1532	adjust_weight (env, -weight * nr); // carrying == 0
		1533
		1534	if (object *pl = visible_to ())
		1535	esrv_update_item (UPD_NROF, pl, this);
		1536
		1537	return true;
		1538	}
		1539	else
		1540	{
		1541	destroy (1);
		1542	return false;
		1543	}
		1544	}
		1545
		1546	/*
		1547	* split(ob,nr) splits up ob into two parts. The part which
		1548	* is returned contains nr objects, and the remaining parts contains
		1549	* the rest (or is removed and returned if that number is 0).
		1550	* On failure, NULL is returned.
		1551	*/
1513	object *	1552	object *
1514	decrease_ob_nr (object *op, uint32 i)	1553	object::split (sint32 nr)
1515	{	1554	{
1516	object *tmp;	1555	int have = number_of ();
1517		1556
1518	if (i == 0) /* objects with op->nrof require this check */	1557	if (have < nr)
1519	return op;	1558	return 0;
1520		1559	else if (have == nr)
1521	if (i > op->nrof)
1522	i = op->nrof;
1523
1524	if (QUERY_FLAG (op, FLAG_REMOVED))
1525	op->nrof -= i;
1526	else if (op->env)
1527	{	1560	{
1528	/* is this object in the players inventory, or sub container
1529	* therein?
1530	*/
1531	tmp = op->in_player ();
1532	/* nope. Is this a container the player has opened?
1533	* If so, set tmp to that player.
1534	* IMO, searching through all the players will mostly
1535	* likely be quicker than following op->env to the map,
1536	* and then searching the map for a player.
1537	*/
1538	if (!tmp)
1539	for_all_players (pl)
1540	if (pl->ob->container == op->env)
1541	{
1542	tmp = pl->ob;
1543	break;
1544	}
1545
1546	if (i < op->nrof)
1547	{
1548	sub_weight (op->env, op->weight * i);
1549	op->nrof -= i;
1550	if (tmp)
1551	esrv_send_item (tmp, op);
1552	}
1553	else
1554	{
1555	op->remove ();	1561	remove ();
1556	op->nrof = 0;	1562	return this;
1557	if (tmp)
1558	esrv_del_item (tmp->contr, op->count);
1559	}
1560	}	1563	}
1561	else	1564	else
1562	{	1565	{
1563	object *above = op->above;	1566	decrease (nr);
1564		1567
1565	if (i < op->nrof)	1568	object *op = deep_clone ();
1566	op->nrof -= i;	1569	op->nrof = nr;
1567	else
1568	{
1569	op->remove ();
1570	op->nrof = 0;
1571	}
1572
1573	/* Since we just removed op, op->above is null */
1574	for (tmp = above; tmp; tmp = tmp->above)
1575	if (tmp->type == PLAYER)
1576	{
1577	if (op->nrof)
1578	esrv_send_item (tmp, op);
1579	else
1580	esrv_del_item (tmp->contr, op->count);
1581	}
1582	}
1583
1584	if (op->nrof)
1585	return op;	1570	return op;
1586	else
1587	{
1588	op->destroy ();
1589	return 0;
1590	}
1591	}
1592
1593	/*
1594	* add_weight(object, weight) adds the specified weight to an object,
1595	* and also updates how much the environment(s) is/are carrying.
1596	*/
1597
1598	void
1599	add_weight (object *op, signed long weight)
1600	{
1601	while (op != NULL)
1602	{
1603	if (op->type == CONTAINER)
1604	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1605
1606	op->carrying += weight;
1607	op = op->env;
1608	}	1571	}
1609	}	1572	}
1610		1573
1611	object *	1574	object *
1612	insert_ob_in_ob (object *op, object *where)	1575	insert_ob_in_ob (object *op, object *where)
…		…
1617	LOG (llevError, "Trying to put object in NULL.\n%s\n", dump);	1580	LOG (llevError, "Trying to put object in NULL.\n%s\n", dump);
1618	free (dump);	1581	free (dump);
1619	return op;	1582	return op;
1620	}	1583	}
1621		1584
1622	if (where->head)	1585	if (where->head_ () != where)
1623	{	1586	{
1624	LOG (llevDebug, "Warning: Tried to insert object into wrong part of multipart object.\n");	1587	LOG (llevError | logBacktrace, "Warning: Tried to insert object into wrong part of multipart object.\n");
1625	where = where->head;	1588	where = where->head;
1626	}	1589	}
1627		1590
1628	return where->insert (op);	1591	return where->insert (op);
1629	}	1592	}
…		…
1634	* inside the object environment.	1597	* inside the object environment.
1635	*	1598	*
1636	* The function returns now pointer to inserted item, and return value can	1599	* The function returns now pointer to inserted item, and return value can
1637	* be != op, if items are merged. -Tero	1600	* be != op, if items are merged. -Tero
1638	*/	1601	*/
1639
1640	object *	1602	object *
1641	object::insert (object *op)	1603	object::insert (object *op)
1642	{	1604	{
1643	object *tmp, *otmp;
1644
1645	if (!QUERY_FLAG (op, FLAG_REMOVED))
1646	op->remove ();
1647
1648	if (op->more)	1605	if (op->more)
1649	{	1606	{
1650	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);	1607	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);
1651	return op;	1608	return op;
1652	}	1609	}
1653		1610
1654	CLEAR_FLAG (op, FLAG_OBJ_ORIGINAL);	1611	op->remove ();
1655	CLEAR_FLAG (op, FLAG_REMOVED);	1612
		1613	op->flag [FLAG_OBJ_ORIGINAL] = 0;
		1614
1656	if (op->nrof)	1615	if (op->nrof)
1657	{
1658	for (tmp = inv; tmp != NULL; tmp = tmp->below)	1616	for (object *tmp = inv; tmp; tmp = tmp->below)
1659	if (object::can_merge (tmp, op))	1617	if (object::can_merge (tmp, op))
1660	{	1618	{
1661	/* return the original object and remove inserted object	1619	/* return the original object and remove inserted object
1662	(client needs the original object) */	1620	(client needs the original object) */
1663	tmp->nrof += op->nrof;	1621	tmp->nrof += op->nrof;
1664	/* Weight handling gets pretty funky. Since we are adding to	1622
1665	* tmp->nrof, we need to increase the weight.	1623	if (object *pl = tmp->visible_to ())
1666	*/	1624	esrv_update_item (UPD_NROF, pl, tmp);
		1625
1667	add_weight (this, op->weight * op->nrof);	1626	adjust_weight (this, op->total_weight ());
1668	SET_FLAG (op, FLAG_REMOVED);	1627
1669	op->destroy (); /* free the inserted object */	1628	op->destroy (1);
1670	op = tmp;	1629	op = tmp;
1671	op->remove (); /* and fix old object's links */	1630	goto inserted;
1672	CLEAR_FLAG (op, FLAG_REMOVED);
1673	break;
1674	}	1631	}
1675		1632
1676	/* I assume combined objects have no inventory	1633	op->owner = 0; // it's his/hers now. period.
1677	* We add the weight - this object could have just been removed
1678	* (if it was possible to merge). calling remove_ob will subtract
1679	* the weight, so we need to add it in again, since we actually do
1680	* the linking below
1681	*/
1682	add_weight (this, op->weight * op->nrof);
1683	}
1684	else
1685	add_weight (this, (op->weight + op->carrying));
1686
1687	otmp = this->in_player ();
1688	if (otmp && otmp->contr)
1689	if (!QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1690	otmp->update_stats ();
1691
1692	op->map = 0;	1634	op->map = 0;
1693	op->env = this;	1635	op->x = 0;
		1636	op->y = 0;
		1637
1694	op->above = 0;	1638	op->above = 0;
1695	op->below = 0;	1639	op->below = inv;
1696	op->x = 0, op->y = 0;	1640	op->env = this;
1697		1641
		1642	if (inv)
		1643	inv->above = op;
		1644
		1645	inv = op;
		1646
		1647	op->flag [FLAG_REMOVED] = 0;
		1648
		1649	if (object *pl = op->visible_to ())
		1650	esrv_send_item (pl, op);
		1651
		1652	adjust_weight (this, op->total_weight ());
		1653
		1654	inserted:
1698	/* reset the light list and los of the players on the map */	1655	/* reset the light list and los of the players on the map */
1699	if ((op->glow_radius != 0) && map)	1656	if (op->glow_radius && map && map->darkness)
1700	{
1701	#ifdef DEBUG_LIGHTS
1702	LOG (llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n", op->name);
1703	#endif /* DEBUG_LIGHTS */
1704	if (map->darkness)
1705	update_all_los (map, x, y);	1657	update_all_los (map, x, y);
1706	}
1707		1658
1708	/* Client has no idea of ordering so lets not bother ordering it here.	1659	// if this is a player's inventory, update stats
1709	* It sure simplifies this function...	1660	if (type == PLAYER && !flag [FLAG_NO_FIX_PLAYER])
1710	*/	1661	update_stats ();
1711	if (!inv)
1712	inv = op;
1713	else
1714	{
1715	op->below = inv;
1716	op->below->above = op;
1717	inv = op;
1718	}
1719		1662
1720	INVOKE_OBJECT (INSERT, this);	1663	INVOKE_OBJECT (INSERT, this);
1721		1664
1722	return op;	1665	return op;
1723	}	1666	}
…		…
1776		1719
1777	/* The objects have to be checked from top to bottom.	1720	/* The objects have to be checked from top to bottom.
1778	* Hence, we first go to the top:	1721	* Hence, we first go to the top:
1779	*/	1722	*/
1780		1723
1781	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp && tmp->above; tmp = tmp->above)	1724	for (tmp = op->ms ().bot; tmp && tmp->above; tmp = tmp->above)
1782	{	1725	{
1783	/* Trim the search when we find the first other spell effect	1726	/* Trim the search when we find the first other spell effect
1784	* this helps performance so that if a space has 50 spell objects,	1727	* this helps performance so that if a space has 50 spell objects,
1785	* we don't need to check all of them.	1728	* we don't need to check all of them.
1786	*/	1729	*/
…		…
1804	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||	1747	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||
1805	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))	1748	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))
1806	{	1749	{
1807		1750
1808	float	1751	float
1809	diff = tmp->move_slow_penalty * FABS (op->speed);	1752	diff = tmp->move_slow_penalty * fabs (op->speed);
1810		1753
1811	if (op->type == PLAYER)	1754	if (op->type == PLAYER)
1812	if ((QUERY_FLAG (tmp, FLAG_IS_HILLY) && find_skill_by_number (op, SK_CLIMBING)) ||	1755	if ((QUERY_FLAG (tmp, FLAG_IS_HILLY) && find_skill_by_number (op, SK_CLIMBING)) ||
1813	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))	1756	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))
1814	diff /= 4.0;	1757	diff /= 4.0;
…		…
1844	* The first matching object is returned, or NULL if none.	1787	* The first matching object is returned, or NULL if none.
1845	*/	1788	*/
1846	object *	1789	object *
1847	present_arch (const archetype *at, maptile *m, int x, int y)	1790	present_arch (const archetype *at, maptile *m, int x, int y)
1848	{	1791	{
1849	if (m == NULL || out_of_map (m, x, y))	1792	if (!m || out_of_map (m, x, y))
1850	{	1793	{
1851	LOG (llevError, "Present_arch called outside map.\n");	1794	LOG (llevError, "Present_arch called outside map.\n");
1852	return NULL;	1795	return NULL;
1853	}	1796	}
1854		1797
1855	for (object *tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)	1798	for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)
1856	if (tmp->arch == at)	1799	if (tmp->arch->archname == at->archname)
1857	return tmp;	1800	return tmp;
1858		1801
1859	return NULL;	1802	return NULL;
1860	}	1803	}
1861		1804
…		…
1871	{	1814	{
1872	LOG (llevError, "Present called outside map.\n");	1815	LOG (llevError, "Present called outside map.\n");
1873	return NULL;	1816	return NULL;
1874	}	1817	}
1875		1818
1876	for (object *tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)	1819	for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)
1877	if (tmp->type == type)	1820	if (tmp->type == type)
1878	return tmp;	1821	return tmp;
1879		1822
1880	return NULL;	1823	return NULL;
1881	}	1824	}
…		…
1925	* The first matching object is returned, or NULL if none.	1868	* The first matching object is returned, or NULL if none.
1926	*/	1869	*/
1927	object *	1870	object *
1928	present_arch_in_ob (const archetype *at, const object *op)	1871	present_arch_in_ob (const archetype *at, const object *op)
1929	{	1872	{
1930	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)	1873	for (object *tmp = op->inv; tmp; tmp = tmp->below)
1931	if (tmp->arch == at)	1874	if (tmp->arch->archname == at->archname)
1932	return tmp;	1875	return tmp;
1933		1876
1934	return NULL;	1877	return NULL;
1935	}	1878	}
1936		1879
…		…
1938	* activate recursively a flag on an object inventory	1881	* activate recursively a flag on an object inventory
1939	*/	1882	*/
1940	void	1883	void
1941	flag_inv (object *op, int flag)	1884	flag_inv (object *op, int flag)
1942	{	1885	{
1943	if (op->inv)
1944	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)	1886	for (object *tmp = op->inv; tmp; tmp = tmp->below)
1945	{	1887	{
1946	SET_FLAG (tmp, flag);	1888	SET_FLAG (tmp, flag);
1947	flag_inv (tmp, flag);	1889	flag_inv (tmp, flag);
1948	}	1890	}
1949	}	1891	}
1950		1892
1951	/*	1893	/*
1952	* deactivate recursively a flag on an object inventory	1894	* deactivate recursively a flag on an object inventory
1953	*/	1895	*/
1954	void	1896	void
1955	unflag_inv (object *op, int flag)	1897	unflag_inv (object *op, int flag)
1956	{	1898	{
1957	if (op->inv)
1958	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)	1899	for (object *tmp = op->inv; tmp; tmp = tmp->below)
1959	{	1900	{
1960	CLEAR_FLAG (tmp, flag);	1901	CLEAR_FLAG (tmp, flag);
1961	unflag_inv (tmp, flag);	1902	unflag_inv (tmp, flag);
1962	}	1903	}
1963	}
1964
1965	/*
1966	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in
1967	* all it's inventory (recursively).
1968	* If checksums are used, a player will get set_cheat called for
1969	* him/her-self and all object carried by a call to this function.
1970	*/
1971	void
1972	set_cheat (object *op)
1973	{
1974	SET_FLAG (op, FLAG_WAS_WIZ);
1975	flag_inv (op, FLAG_WAS_WIZ);
1976	}	1904	}
1977		1905
1978	/*	1906	/*
1979	* find_free_spot(object, map, x, y, start, stop) will search for	1907	* find_free_spot(object, map, x, y, start, stop) will search for
1980	* a spot at the given map and coordinates which will be able to contain	1908	* a spot at the given map and coordinates which will be able to contain
…		…
1982	* to search (see the freearr_x/y[] definition).	1910	* to search (see the freearr_x/y[] definition).
1983	* It returns a random choice among the alternatives found.	1911	* It returns a random choice among the alternatives found.
1984	* start and stop are where to start relative to the free_arr array (1,9	1912	* start and stop are where to start relative to the free_arr array (1,9
1985	* does all 4 immediate directions). This returns the index into the	1913	* does all 4 immediate directions). This returns the index into the
1986	* array of the free spot, -1 if no spot available (dir 0 = x,y)	1914	* array of the free spot, -1 if no spot available (dir 0 = x,y)
1987	* Note - this only checks to see if there is space for the head of the
1988	* object - if it is a multispace object, this should be called for all
1989	* pieces.
1990	* Note2: This function does correctly handle tiled maps, but does not	1915	* Note: This function does correctly handle tiled maps, but does not
1991	* inform the caller. However, insert_ob_in_map will update as	1916	* inform the caller. However, insert_ob_in_map will update as
1992	* necessary, so the caller shouldn't need to do any special work.	1917	* necessary, so the caller shouldn't need to do any special work.
1993	* Note - updated to take an object instead of archetype - this is necessary	1918	* Note - updated to take an object instead of archetype - this is necessary
1994	* because arch_blocked (now ob_blocked) needs to know the movement type	1919	* because arch_blocked (now ob_blocked) needs to know the movement type
1995	* to know if the space in question will block the object. We can't use	1920	* to know if the space in question will block the object. We can't use
…		…
1997	* customized, changed states, etc.	1922	* customized, changed states, etc.
1998	*/	1923	*/
1999	int	1924	int
2000	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)	1925	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)
2001	{	1926	{
		1927	int altern[SIZEOFFREE];
2002	int index = 0, flag;	1928	int index = 0, flag;
2003	int altern[SIZEOFFREE];
2004		1929
2005	for (int i = start; i < stop; i++)	1930	for (int i = start; i < stop; i++)
2006	{	1931	{
2007	flag = ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]);	1932	mapxy pos (m, x, y); pos.move (i);
2008	if (!flag)	1933
		1934	if (!pos.normalise ())
		1935	continue;
		1936
		1937	mapspace &ms = *pos;
		1938
		1939	if (ms.flags () & P_IS_ALIVE)
		1940	continue;
		1941
		1942	/* However, often
		1943	* ob doesn't have any move type (when used to place exits)
		1944	* so the AND operation in OB_TYPE_MOVE_BLOCK doesn't work.
		1945	*/
		1946	if (ob && ob->move_type == 0 && ms.move_block != MOVE_ALL)
		1947	{
2009	altern [index++] = i;	1948	altern [index++] = i;
		1949	continue;
		1950	}
2010		1951
2011	/* Basically, if we find a wall on a space, we cut down the search size.	1952	/* Basically, if we find a wall on a space, we cut down the search size.
2012	* In this way, we won't return spaces that are on another side of a wall.	1953	* In this way, we won't return spaces that are on another side of a wall.
2013	* This mostly work, but it cuts down the search size in all directions -	1954	* This mostly work, but it cuts down the search size in all directions -
2014	* if the space being examined only has a wall to the north and empty	1955	* if the space being examined only has a wall to the north and empty
2015	* spaces in all the other directions, this will reduce the search space	1956	* spaces in all the other directions, this will reduce the search space
2016	* to only the spaces immediately surrounding the target area, and	1957	* to only the spaces immediately surrounding the target area, and
2017	* won't look 2 spaces south of the target space.	1958	* won't look 2 spaces south of the target space.
2018	*/	1959	*/
2019	else if ((flag & P_NO_PASS) && maxfree[i] < stop)	1960	if (ms.move_block == MOVE_ALL && maxfree[i] < stop)
		1961	{
2020	stop = maxfree[i];	1962	stop = maxfree[i];
		1963	continue;
		1964	}
		1965
		1966	/* Note it is intentional that we check ob - the movement type of the
		1967	* head of the object should correspond for the entire object.
		1968	*/
		1969	if (OB_TYPE_MOVE_BLOCK (ob, ms.move_block))
		1970	continue;
		1971
		1972	if (ob->blocked (m, pos.x, pos.y))
		1973	continue;
		1974
		1975	altern [index++] = i;
2021	}	1976	}
2022		1977
2023	if (!index)	1978	if (!index)
2024	return -1;	1979	return -1;
2025		1980
2026	return altern[RANDOM () % index];	1981	return altern [rndm (index)];
2027	}	1982	}
2028		1983
2029	/*	1984	/*
2030	* find_first_free_spot(archetype, maptile, x, y) works like	1985	* find_first_free_spot(archetype, maptile, x, y) works like
2031	* find_free_spot(), but it will search max number of squares.	1986	* find_free_spot(), but it will search max number of squares.
…		…
2034	*/	1989	*/
2035	int	1990	int
2036	find_first_free_spot (const object *ob, maptile *m, int x, int y)	1991	find_first_free_spot (const object *ob, maptile *m, int x, int y)
2037	{	1992	{
2038	for (int i = 0; i < SIZEOFFREE; i++)	1993	for (int i = 0; i < SIZEOFFREE; i++)
2039	if (!ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]))	1994	if (!ob->blocked (m, x + freearr_x[i], y + freearr_y[i]))
2040	return i;	1995	return i;
2041		1996
2042	return -1;	1997	return -1;
2043	}	1998	}
2044		1999
…		…
2052	{	2007	{
2053	arr += begin;	2008	arr += begin;
2054	end -= begin;	2009	end -= begin;
2055		2010
2056	while (--end)	2011	while (--end)
2057	swap (arr [end], arr [RANDOM () % (end + 1)]);	2012	swap (arr [end], arr [rndm (end + 1)]);
2058	}	2013	}
2059		2014
2060	/* new function to make monster searching more efficient, and effective!	2015	/* new function to make monster searching more efficient, and effective!
2061	* This basically returns a randomized array (in the passed pointer) of	2016	* This basically returns a randomized array (in the passed pointer) of
2062	* the spaces to find monsters. In this way, it won't always look for	2017	* the spaces to find monsters. In this way, it won't always look for
…		…
2098	object *tmp;	2053	object *tmp;
2099	maptile *mp;	2054	maptile *mp;
2100		2055
2101	MoveType blocked, move_type;	2056	MoveType blocked, move_type;
2102		2057
2103	if (exclude && exclude->head)	2058	if (exclude && exclude->head_ () != exclude)
2104	{	2059	{
2105	exclude = exclude->head;	2060	exclude = exclude->head;
2106	move_type = exclude->move_type;	2061	move_type = exclude->move_type;
2107	}	2062	}
2108	else	2063	else
…		…
2131	max = maxfree[i];	2086	max = maxfree[i];
2132	else if (mflags & P_IS_ALIVE)	2087	else if (mflags & P_IS_ALIVE)
2133	{	2088	{
2134	for (tmp = ms.bot; tmp; tmp = tmp->above)	2089	for (tmp = ms.bot; tmp; tmp = tmp->above)
2135	if ((tmp->flag [FLAG_MONSTER] || tmp->type == PLAYER)	2090	if ((tmp->flag [FLAG_MONSTER] || tmp->type == PLAYER)
2136	&& (tmp != exclude || (tmp->head && tmp->head != exclude)))	2091	&& (tmp != exclude || (tmp->head_ () != tmp && tmp->head_ () != exclude)))
2137	break;	2092	break;
2138		2093
2139	if (tmp)	2094	if (tmp)
2140	return freedir[i];	2095	return freedir[i];
2141	}	2096	}
…		…
2196		2151
2197	return 3;	2152	return 3;
2198	}	2153	}
2199		2154
2200	/*	2155	/*
2201	* absdir(int): Returns a number between 1 and 8, which represent
2202	* the "absolute" direction of a number (it actually takes care of
2203	* "overflow" in previous calculations of a direction).
2204	*/
2205
2206	int
2207	absdir (int d)
2208	{
2209	while (d < 1)
2210	d += 8;
2211
2212	while (d > 8)
2213	d -= 8;
2214
2215	return d;
2216	}
2217
2218	/*
2219	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is	2156	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is
2220	* between two directions (which are expected to be absolute (see absdir())	2157	* between two directions (which are expected to be absolute (see absdir())
2221	*/	2158	*/
2222
2223	int	2159	int
2224	dirdiff (int dir1, int dir2)	2160	dirdiff (int dir1, int dir2)
2225	{	2161	{
2226	int d;	2162	int d;
2227		2163
…		…
2340	* Cf 0.91.3 - don't let WIZ's pick up anything - will likely cause	2276	* Cf 0.91.3 - don't let WIZ's pick up anything - will likely cause
2341	* core dumps if they do.	2277	* core dumps if they do.
2342	*	2278	*
2343	* Add a check so we can't pick up invisible objects (0.93.8)	2279	* Add a check so we can't pick up invisible objects (0.93.8)
2344	*/	2280	*/
2345
2346	int	2281	int
2347	can_pick (const object *who, const object *item)	2282	can_pick (const object *who, const object *item)
2348	{	2283	{
2349	return /*QUERY_FLAG(who,FLAG_WIZ)|| */	2284	return /*QUERY_FLAG(who,FLAG_WIZ)|| */
2350	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&	2285	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&
…		…
2353		2288
2354	/*	2289	/*
2355	* create clone from object to another	2290	* create clone from object to another
2356	*/	2291	*/
2357	object *	2292	object *
2358	object_create_clone (object *asrc)	2293	object::deep_clone ()
2359	{	2294	{
2360	object *dst = 0, *tmp, *src, *part, *prev, *item;	2295	assert (("deep_clone called on non-head object", is_head ()));
2361		2296
2362	if (!asrc)	2297	object *dst = clone ();
2363	return 0;
2364		2298
2365	src = asrc;	2299	object *prev = dst;
2366	if (src->head)
2367	src = src->head;
2368
2369	prev = 0;
2370	for (part = src; part; part = part->more)	2300	for (object *part = this->more; part; part = part->more)
2371	{	2301	{
2372	tmp = part->clone ();	2302	object *tmp = part->clone ();
2373	tmp->x -= src->x;
2374	tmp->y -= src->y;
2375
2376	if (!part->head)
2377	{
2378	dst = tmp;
2379	tmp->head = 0;
2380	}
2381	else
2382	tmp->head = dst;	2303	tmp->head = dst;
2383
2384	tmp->more = 0;
2385
2386	if (prev)
2387	prev->more = tmp;	2304	prev->more = tmp;
2388
2389	prev = tmp;	2305	prev = tmp;
2390	}	2306	}
2391		2307
2392	for (item = src->inv; item; item = item->below)	2308	for (object *item = inv; item; item = item->below)
2393	insert_ob_in_ob (object_create_clone (item), dst);	2309	insert_ob_in_ob (item->deep_clone (), dst);
2394		2310
2395	return dst;	2311	return dst;
2396	}
2397
2398	/* GROS - Creates an object using a string representing its content. */
2399	/* Basically, we save the content of the string to a temp file, then call */
2400	/* load_object on it. I admit it is a highly inefficient way to make things, */
2401	/* but it was simple to make and allows reusing the load_object function. */
2402	/* Remember not to use load_object_str in a time-critical situation. */
2403	/* Also remember that multiparts objects are not supported for now. */
2404	object *
2405	load_object_str (const char *obstr)
2406	{
2407	object *op;
2408	char filename[MAX_BUF];
2409
2410	sprintf (filename, "%s/cfloadobstr2044", settings.tmpdir);
2411
2412	FILE *tempfile = fopen (filename, "w");
2413
2414	if (tempfile == NULL)
2415	{
2416	LOG (llevError, "Error - Unable to access load object temp file\n");
2417	return NULL;
2418	}
2419
2420	fprintf (tempfile, obstr);
2421	fclose (tempfile);
2422
2423	op = object::create ();
2424
2425	object_thawer thawer (filename);
2426
2427	if (thawer)
2428	load_object (thawer, op, 0);
2429
2430	LOG (llevDebug, " load str completed, object=%s\n", &op->name);
2431	CLEAR_FLAG (op, FLAG_REMOVED);
2432
2433	return op;
2434	}	2312	}
2435		2313
2436	/* This returns the first object in who's inventory that	2314	/* This returns the first object in who's inventory that
2437	* has the same type and subtype match.	2315	* has the same type and subtype match.
2438	* returns NULL if no match.	2316	* returns NULL if no match.
…		…
2445	return tmp;	2323	return tmp;
2446		2324
2447	return 0;	2325	return 0;
2448	}	2326	}
2449		2327
2450	/* If ob has a field named key, return the link from the list,	2328	const shstr &
2451	* otherwise return NULL.	2329	object::kv_get (const shstr &key) const
2452	*
2453	* key must be a passed in shared string - otherwise, this won't
2454	* do the desired thing.
2455	*/
2456	key_value *
2457	get_ob_key_link (const object *ob, const char *key)
2458	{	2330	{
2459	for (key_value *link = ob->key_values; link; link = link->next)	2331	for (key_value *kv = key_values; kv; kv = kv->next)
2460	if (link->key == key)	2332	if (kv->key == key)
2461	return link;
2462
2463	return 0;
2464	}
2465
2466	/*
2467	* Returns the value of op has an extra_field for key, or NULL.
2468	*
2469	* The argument doesn't need to be a shared string.
2470	*
2471	* The returned string is shared.
2472	*/
2473	const char *
2474	get_ob_key_value (const object *op, const char *const key)
2475	{
2476	key_value *link;
2477	shstr_cmp canonical_key (key);
2478
2479	if (!canonical_key)
2480	{
2481	/* 1. There being a field named key on any object
2482	* implies there'd be a shared string to find.
2483	* 2. Since there isn't, no object has this field.
2484	* 3. Therefore, *this* object doesn't have this field.
2485	*/
2486	return 0;
2487	}
2488
2489	/* This is copied from get_ob_key_link() above -
2490	* only 4 lines, and saves the function call overhead.
2491	*/
2492	for (link = op->key_values; link; link = link->next)
2493	if (link->key == canonical_key)
2494	return link->value;	2333	return kv->value;
2495		2334
2496	return 0;	2335	return shstr_null;
2497	}	2336	}
2498		2337
2499		2338	void
2500	/*	2339	object::kv_set (const shstr &key, const shstr &value)
2501	* Updates the canonical_key in op to value.
2502	*
2503	* canonical_key is a shared string (value doesn't have to be).
2504	*
2505	* Unless add_key is TRUE, it won't add fields, only change the value of existing
2506	* keys.
2507	*
2508	* Returns TRUE on success.
2509	*/
2510	int
2511	set_ob_key_value_s (object *op, const shstr & canonical_key, const char *value, int add_key)
2512	{	2340	{
2513	key_value *field = NULL, *last = NULL;	2341	for (key_value *kv = key_values; kv; kv = kv->next)
2514		2342	if (kv->key == key)
2515	for (field = op->key_values; field != NULL; field = field->next)
2516	{
2517	if (field->key != canonical_key)
2518	{	2343	{
2519	last = field;	2344	kv->value = value;
2520	continue;	2345	return;
2521	}	2346	}
2522		2347
2523	if (value)	2348	key_value *kv = new key_value;
2524	field->value = value;	2349
2525	else	2350	kv->next = key_values;
		2351	kv->key = key;
		2352	kv->value = value;
		2353
		2354	key_values = kv;
		2355	}
		2356
		2357	void
		2358	object::kv_del (const shstr &key)
		2359	{
		2360	for (key_value **kvp = &key_values; *kvp; kvp = &(*kvp)->next)
		2361	if ((*kvp)->key == key)
2526	{	2362	{
2527	/* Basically, if the archetype has this key set,	2363	key_value *kv = *kvp;
2528	* we need to store the null value so when we save	2364	*kvp = (*kvp)->next;
2529	* it, we save the empty value so that when we load,	2365	delete kv;
2530	* we get this value back again.	2366	return;
2531	*/
2532	if (get_ob_key_link (&op->arch->clone, canonical_key))
2533	field->value = 0;
2534	else
2535	{
2536	if (last)
2537	last->next = field->next;
2538	else
2539	op->key_values = field->next;
2540
2541	delete field;
2542	}
2543	}	2367	}
2544	return TRUE;
2545	}
2546	/* IF we get here, key doesn't exist */
2547
2548	/* No field, we'll have to add it. */
2549
2550	if (!add_key)
2551	return FALSE;
2552
2553	/* There isn't any good reason to store a null
2554	* value in the key/value list. If the archetype has
2555	* this key, then we should also have it, so shouldn't
2556	* be here. If user wants to store empty strings,
2557	* should pass in ""
2558	*/
2559	if (value == NULL)
2560	return TRUE;
2561
2562	field = new key_value;
2563
2564	field->key = canonical_key;
2565	field->value = value;
2566	/* Usual prepend-addition. */
2567	field->next = op->key_values;
2568	op->key_values = field;
2569
2570	return TRUE;
2571	}
2572
2573	/*
2574	* Updates the key in op to value.
2575	*
2576	* If add_key is FALSE, this will only update existing keys,
2577	* and not add new ones.
2578	* In general, should be little reason FALSE is ever passed in for add_key
2579	*
2580	* Returns TRUE on success.
2581	*/
2582	int
2583	set_ob_key_value (object *op, const char *key, const char *value, int add_key)
2584	{
2585	shstr key_ (key);
2586
2587	return set_ob_key_value_s (op, key_, value, add_key);
2588	}	2368	}
2589		2369
2590	object::depth_iterator::depth_iterator (object *container)	2370	object::depth_iterator::depth_iterator (object *container)
2591	: iterator_base (container)	2371	: iterator_base (container)
2592	{	2372	{
…		…
2606	}	2386	}
2607	else	2387	else
2608	item = item->env;	2388	item = item->env;
2609	}	2389	}
2610		2390
2611
2612	const char *	2391	const char *
2613	object::flag_desc (char *desc, int len) const	2392	object::flag_desc (char *desc, int len) const
2614	{	2393	{
2615	char *p = desc;	2394	char *p = desc;
2616	bool first = true;	2395	bool first = true;
		2396
		2397	*p = 0;
2617		2398
2618	for (int i = 0; i < NUM_FLAGS; i++)	2399	for (int i = 0; i < NUM_FLAGS; i++)
2619	{	2400	{
2620	if (len <= 10) // magic constant!	2401	if (len <= 10) // magic constant!
2621	{	2402	{
2622	snprintf (p, len, ",...");	2403	snprintf (p, len, ",...");
2623	break;	2404	break;
2624	}	2405	}
2625		2406
2626	if (flag[i])	2407	if (flag [i])
2627	{	2408	{
2628	int cnt = snprintf (p, len, "%s%d", first ? "" : ",", i);	2409	int cnt = snprintf (p, len, "%s%d", first ? "" : ",", i);
2629	len -= cnt;	2410	len -= cnt;
2630	p += cnt;	2411	p += cnt;
2631	first = false;	2412	first = false;
…		…
2633	}	2414	}
2634		2415
2635	return desc;	2416	return desc;
2636	}	2417	}
2637		2418
2638	// return a suitable string describing an objetc in enough detail to find it	2419	// return a suitable string describing an object in enough detail to find it
2639	const char *	2420	const char *
2640	object::debug_desc (char *info) const	2421	object::debug_desc (char *info) const
2641	{	2422	{
2642	char flagdesc[512];	2423	char flagdesc[512];
2643	char info2[256 * 4];	2424	char info2[256 * 4];
2644	char *p = info;	2425	char *p = info;
2645		2426
2646	p += snprintf (p, 512, "{cnt:%d,uuid:<1,%" PRIx64 ">,name:\"%s%s%s\",flags:[%s],type:%d}",	2427	p += snprintf (p, 512, "{cnt:%d,uuid:%s,name:\"%s\"%s%s%s,flags:[%s],type:%d}",
2647	count, uuid.seq,	2428	count,
		2429	uuid.c_str (),
2648	&name,	2430	&name,
2649	title ? "\",title:" : "",	2431	title ? ",title:\"" : "",
2650	title ? (const char *)title : "",	2432	title ? (const char *)title : "",
		2433	title ? "\"" : "",
2651	flag_desc (flagdesc, 512), type);	2434	flag_desc (flagdesc, 512), type);
2652		2435
2653	if (env)	2436	if (!flag[FLAG_REMOVED] && env)
2654	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));	2437	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));
2655		2438
2656	if (map)	2439	if (map)
2657	p += snprintf (p, 256, "(on %s@%d+%d)", &map->path, x, y);	2440	p += snprintf (p, 256, "(on %s@%d+%d)", &map->path, x, y);
2658		2441
…		…
2660	}	2443	}
2661		2444
2662	const char *	2445	const char *
2663	object::debug_desc () const	2446	object::debug_desc () const
2664	{	2447	{
2665	static char info[256 * 3];	2448	static char info[3][256 * 4];
		2449	static int info_idx;
		2450
2666	return debug_desc (info);	2451	return debug_desc (info [++info_idx % 3]);
2667	}	2452	}
2668		2453
		2454	struct region *
		2455	object::region () const
		2456	{
		2457	return map ? map->region (x, y)
		2458	: region::default_region ();
		2459	}
		2460
		2461	const materialtype_t *
		2462	object::dominant_material () const
		2463	{
		2464	if (materialtype_t *mt = name_to_material (materialname))
		2465	return mt;
		2466
		2467	return name_to_material (shstr_unknown);
		2468	}
		2469
		2470	void
		2471	object::open_container (object *new_container)
		2472	{
		2473	if (container == new_container)
		2474	return;
		2475
		2476	object *old_container = container;
		2477
		2478	if (old_container)
		2479	{
		2480	if (INVOKE_OBJECT (CLOSE, old_container, ARG_OBJECT (this)))
		2481	return;
		2482
		2483	#if 0
		2484	// remove the "Close old_container" object.
		2485	if (object *closer = old_container->inv)
		2486	if (closer->type == CLOSE_CON)
		2487	closer->destroy ();
		2488	#endif
		2489
		2490	// make sure the container is available
		2491	esrv_send_item (this, old_container);
		2492
		2493	old_container->flag [FLAG_APPLIED] = false;
		2494	container = 0;
		2495
		2496	// client needs item update to make it work, client bug requires this to be separate
		2497	esrv_update_item (UPD_FLAGS, this, old_container);
		2498
		2499	new_draw_info_format (NDI_UNIQUE, 0, this, "You close %s.", query_name (old_container));
		2500	play_sound (sound_find ("chest_close"));
		2501	}
		2502
		2503	if (new_container)
		2504	{
		2505	if (INVOKE_OBJECT (OPEN, new_container, ARG_OBJECT (this)))
		2506	return;
		2507
		2508	// TODO: this does not seem to serve any purpose anymore?
		2509	#if 0
		2510	// insert the "Close Container" object.
		2511	if (archetype *closer = new_container->other_arch)
		2512	{
		2513	object *closer = arch_to_object (new_container->other_arch);
		2514	closer->flag [FLAG_NO_MAP_SAVE] = 1;
		2515	new_container->insert (closer);
		2516	}
		2517	#endif
		2518
		2519	new_draw_info_format (NDI_UNIQUE, 0, this, "You open %s.", query_name (new_container));
		2520
		2521	// make sure the container is available, client bug requires this to be separate
		2522	esrv_send_item (this, new_container);
		2523
		2524	new_container->flag [FLAG_APPLIED] = true;
		2525	container = new_container;
		2526
		2527	// client needs flag change
		2528	esrv_update_item (UPD_FLAGS, this, new_container);
		2529	esrv_send_inventory (this, new_container);
		2530	play_sound (sound_find ("chest_open"));
		2531	}
		2532	// else if (!old_container->env && contr && contr->ns)
		2533	// contr->ns->floorbox_reset ();
		2534	}
		2535
		2536	object *
		2537	object::force_find (const shstr name)
		2538	{
		2539	/* cycle through his inventory to look for the MARK we want to
		2540	* place
		2541	*/
		2542	for (object *tmp = inv; tmp; tmp = tmp->below)
		2543	if (tmp->type == FORCE && tmp->slaying == name)
		2544	return splay (tmp);
		2545
		2546	return 0;
		2547	}
		2548
		2549	void
		2550	object::force_add (const shstr name, int duration)
		2551	{
		2552	if (object *force = force_find (name))
		2553	force->destroy ();
		2554
		2555	object *force = get_archetype (FORCE_NAME);
		2556
		2557	force->slaying = name;
		2558	force->stats.food = 1;
		2559	force->speed_left = -1.f;
		2560
		2561	force->set_speed (duration ? 1.f / duration : 0.f);
		2562	force->flag [FLAG_IS_USED_UP] = true;
		2563	force->flag [FLAG_APPLIED] = true;
		2564
		2565	insert (force);
		2566	}
		2567
		2568	void
		2569	object::play_sound (faceidx sound)
		2570	{
		2571	if (!sound)
		2572	return;
		2573
		2574	if (flag [FLAG_REMOVED])
		2575	return;
		2576
		2577	if (env)
		2578	{
		2579	if (object *pl = in_player ())
		2580	pl->contr->play_sound (sound);
		2581	}
		2582	else
		2583	map->play_sound (sound, x, y);
		2584	}
		2585

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