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Comparing deliantra/server/common/object.C (file contents):
Revision 1.54 by root, Fri Nov 17 19:40:53 2006 UTC vs.
Revision 1.292 by root, Mon Oct 19 21:48:49 2009 UTC

1	/*	1	/*
2	CrossFire, A Multiplayer game for X-windows	2	* This file is part of Deliantra, the Roguelike Realtime MMORPG.
3		3	*
		4	* Copyright (©) 2005,2006,2007,2008,2009 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 it under
8	it under the terms of the GNU General Public License as published by	9	* the terms of the Affero GNU General Public License as published by the
9	the Free Software Foundation; either version 2 of the License, or	10	* Free Software Foundation, either version 3 of the License, or (at your
10	(at your option) any later version.	11	* 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 Affero GNU General Public License
18	along with this program; if not, write to the Free Software	19	* and the GNU General Public License along with this program. If not, see
19	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.	20	* <http://www.gnu.org/licenses/>.
20		21	*
21	The authors can be reached via e-mail at <crossfire@schmorp.de>	22	* The authors can be reached via e-mail to <support@deliantra.net>
22	*/	23	*/
23		24
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>	25	#include <global.h>
28	#include <stdio.h>	26	#include <stdio.h>
29	#include <sys/types.h>	27	#include <sys/types.h>
30	#include <sys/uio.h>	28	#include <sys/uio.h>
31	#include <object.h>	29	#include <object.h>
32	#include <funcpoint.h>	30	#include <sproto.h>
33	#include <loader.h>	31	#include <loader.h>
34		32
35	int nrofallocobjects = 0;	33	#include <bitset>
36	static UUID uuid;	34
		35	UUID UUID::cur;
		36	static uint64_t seq_next_save;
37	const uint64 UUID_SKIP = 1<<19;	37	static const uint64 UUID_GAP = 1<<19;
		38	uint32_t mapspace::smellcount = 10000;
38		39
39	object *active_objects; /* List of active objects that need to be processed */	40	objectvec objects;
		41	activevec actives;
40		42
41	short freearr_x[SIZEOFFREE] = { 0, 0, 1, 1, 1, 0, -1, -1, -1, 0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2, -2, -2, -2, -1,	43	short freearr_x[SIZEOFFREE] = {
		44	0,
		45	0, 1, 1, 1, 0, -1, -1, -1,
		46	0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2, -2, -2, -2, -1,
42	0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3, -3, -3, -3, -3, -2, -1	47	0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3, -3, -3, -3, -3, -2, -1
43	};	48	};
44	short freearr_y[SIZEOFFREE] = { 0, -1, -1, 0, 1, 1, 1, 0, -1, -2, -2, -2, -1, 0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2,	49	short freearr_y[SIZEOFFREE] = {
		50	0,
		51	-1, -1, 0, 1, 1, 1, 0, -1,
		52	-2, -2, -2, -1, 0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2,
45	-3, -3, -3, -3, -2, -1, 0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3	53	-3, -3, -3, -3, -2, -1, 0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3
46	};	54	};
47	int maxfree[SIZEOFFREE] = { 0, 9, 10, 13, 14, 17, 18, 21, 22, 25, 26, 27, 30, 31, 32, 33, 36, 37, 39, 39, 42, 43, 44, 45,	55	int maxfree[SIZEOFFREE] = {
		56	0,
		57	9, 10, 13, 14, 17, 18, 21, 22,
		58	25, 26, 27, 30, 31, 32, 33, 36, 37, 39, 39, 42, 43, 44, 45, 48,
48	48, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49	59	49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49
49	};	60	};
50	int freedir[SIZEOFFREE] = {	61	int freedir[SIZEOFFREE] = {
51	0, 1, 2, 3, 4, 5, 6, 7, 8, 1, 2, 2, 2, 3, 4, 4, 4, 5, 6, 6, 6, 7, 8, 8, 8,	62	0,
		63	1, 2, 3, 4, 5, 6, 7, 8,
		64	1, 2, 2, 2, 3, 4, 4, 4, 5, 6, 6, 6, 7, 8, 8, 8,
52	1, 2, 2, 2, 2, 2, 3, 4, 4, 4, 4, 4, 5, 6, 6, 6, 6, 6, 7, 8, 8, 8, 8, 8	65	1, 2, 2, 2, 2, 2, 3, 4, 4, 4, 4, 4, 5, 6, 6, 6, 6, 6, 7, 8, 8, 8, 8, 8
53	};	66	};
54		67
55	static void	68	static void
56	write_uuid (void)	69	write_uuid (uval64 skip, bool sync)
57	{	70	{
58	char filename1[MAX_BUF], filename2[MAX_BUF];	71	CALL_BEGIN (2);
59		72	CALL_ARG_SV (newSVval64 (skip));
60	sprintf (filename1, "%s/uuid", settings.localdir);	73	CALL_ARG_SV (boolSV (sync));
61	sprintf (filename2, "%s/uuid~", settings.localdir);	74	CALL_CALL ("cf::write_uuid", G_DISCARD);
62		75	CALL_END;
63	FILE *fp;
64
65	if (!(fp = fopen (filename2, "w")))
66	{
67	LOG (llevError, "ERROR: cannot open %s for writing, unable to write UUID!\n", filename2);
68	return;
69	}
70
71	fprintf (fp, "<1,%llx>\n", (unsigned long long)uuid.seq + UUID_SKIP * 2);
72	fclose (fp);
73	rename (filename2, filename1);
74	}	76	}
75		77
76	static void	78	static void
77	read_uuid (void)	79	read_uuid (void)
78	{	80	{
79	char filename[MAX_BUF];	81	char filename[MAX_BUF];
80		82
81	sprintf (filename, "%s/uuid", settings.localdir);	83	sprintf (filename, "%s/uuid", settings.localdir);
		84
		85	seq_next_save = 0;
82		86
83	FILE *fp;	87	FILE *fp;
84		88
85	if (!(fp = fopen (filename, "r")))	89	if (!(fp = fopen (filename, "r")))
86	{	90	{
87	if (errno == ENOENT)	91	if (errno == ENOENT)
88	{	92	{
89	LOG (llevInfo, "RESET uid to 1\n");	93	LOG (llevInfo, "RESET uid to 1\n");
90	uuid.seq = 0;	94	UUID::cur.seq = 0;
91	write_uuid ();	95	write_uuid (UUID_GAP, true);
92	return;	96	return;
93	}	97	}
94		98
95	LOG (llevError, "FATAL: cannot open %s for reading!\n", filename);	99	LOG (llevError, "FATAL: cannot open %s for reading!\n", filename);
96	_exit (1);	100	_exit (1);
97	}	101	}
98		102
99	int version;	103	UUID::BUF buf;
100	unsigned long long uid;	104	buf[0] = 0;
101	if (2 != fscanf (fp, "<%d,%llx>\n", &version, &uid) || version != 1)	105	fgets (buf, sizeof (buf), fp);
		106
		107	if (!UUID::cur.parse (buf))
102	{	108	{
103	LOG (llevError, "FATAL: error reading uid from %s!\n", filename);	109	LOG (llevError, "FATAL: error reading uid from %s (%s)!\n", filename, buf);
104	_exit (1);	110	_exit (1);
105	}	111	}
106		112
107	uuid.seq = uid;
108	write_uuid ();
109	LOG (llevDebug, "read UID: %lld\n", uid);	113	LOG (llevDebug, "read UUID: %s\n", UUID::cur.c_str ());
		114
		115	write_uuid (UUID_GAP, true);
110	fclose (fp);	116	fclose (fp);
111	}	117	}
112		118
113	UUID	119	UUID
114	gen_uuid ()	120	UUID::gen ()
115	{	121	{
116	UUID uid;	122	UUID uid;
117		123
118	uid.seq = ++uuid.seq;	124	uid.seq = ++cur.seq;
119		125
120	if (!(uuid.seq & (UUID_SKIP - 1)))	126	if (expect_false (cur.seq >= seq_next_save))
121	write_uuid ();	127	{
		128	seq_next_save = UUID::cur.seq + (UUID_GAP >> 1);
		129	write_uuid (UUID_GAP, false);
		130	}
		131
122		132
123	return uid;	133	return uid;
124	}	134	}
125		135
126	void	136	void
127	init_uuid ()	137	UUID::init ()
128	{	138	{
129	read_uuid ();	139	read_uuid ();
130	}	140	}
131		141
132	/* Returns TRUE if every key_values in wants has a partner with the same value in has. */	142	/* Returns TRUE if every key_values in wants has a partner with the same value in has. */
133	static int	143	static bool
134	compare_ob_value_lists_one (const object *wants, const object *has)	144	compare_ob_value_lists_one (const object *wants, const object *has)
135	{	145	{
136	key_value *wants_field;
137
138	/* n-squared behaviour (see get_ob_key_link()), but I'm hoping both	146	/* n-squared behaviour (see kv_get), but I'm hoping both
139	* objects with lists are rare, and lists stay short. If not, use a	147	* objects with lists are rare, and lists stay short. If not, use a
140	* different structure or at least keep the lists sorted...	148	* different structure or at least keep the lists sorted...
141	*/	149	*/
142		150
143	/* For each field in wants, */	151	/* For each field in wants, */
144	for (wants_field = wants->key_values; wants_field != NULL; wants_field = wants_field->next)	152	for (key_value *kv = wants->key_values; kv; kv = kv->next)
145	{	153	if (has->kv_get (kv->key) != kv->value)
146	key_value *has_field;	154	return false;
147
148	/* Look for a field in has with the same key. */
149	has_field = get_ob_key_link (has, wants_field->key);
150
151	if (has_field == NULL)
152	{
153	/* No field with that name. */
154	return FALSE;
155	}
156
157	/* Found the matching field. */
158	if (has_field->value != wants_field->value)
159	{
160	/* Values don't match, so this half of the comparison is false. */
161	return FALSE;
162	}
163
164	/* If we get here, we found a match. Now for the next field in wants. */
165	}
166		155
167	/* If we get here, every field in wants has a matching field in has. */	156	/* If we get here, every field in wants has a matching field in has. */
168	return TRUE;	157	return true;
169	}	158	}
170		159
171	/* Returns TRUE if ob1 has the same key_values as ob2. */	160	/* Returns TRUE if ob1 has the same key_values as ob2. */
172	static int	161	static bool
173	compare_ob_value_lists (const object *ob1, const object *ob2)	162	compare_ob_value_lists (const object *ob1, const object *ob2)
174	{	163	{
175	/* However, there may be fields in has which aren't partnered in wants,	164	/* However, there may be fields in has which aren't partnered in wants,
176	* so we need to run the comparison *twice*. :(	165	* so we need to run the comparison *twice*. :(
177	*/	166	*/
178	return compare_ob_value_lists_one (ob1, ob2) && compare_ob_value_lists_one (ob2, ob1);	167	return compare_ob_value_lists_one (ob1, ob2)
		168	&& compare_ob_value_lists_one (ob2, ob1);
179	}	169	}
180		170
181	/* Function examines the 2 objects given to it, and returns true if	171	/* Function examines the 2 objects given to it, and returns true if
182	* they can be merged together.	172	* they can be merged together.
183	*	173	*
184	* Note that this function appears a lot longer than the macro it	174	* Note that this function appears a lot longer than the macro it
185	* replaces - this is mostly for clarity - a decent compiler should hopefully	175	* replaces - this is mostly for clarity - a decent compiler should hopefully
186	* reduce this to the same efficiency.	176	* reduce this to the same efficiency.
187	*	177	*
188	* Check nrof variable *before* calling CAN_MERGE()	178	* Check nrof variable *before* calling can_merge()
189	*	179	*
190	* Improvements made with merge: Better checking on potion, and also	180	* Improvements made with merge: Better checking on potion, and also
191	* check weight	181	* check weight
192	*/	182	*/
193
194	bool object::can_merge (object *ob1, object *ob2)	183	bool object::can_merge_slow (object *ob1, object *ob2)
195	{	184	{
196	/* A couple quicksanity checks */	185	/* A couple quicksanity checks */
197	if ((ob1 == ob2) || (ob1->type != ob2->type))	186	if (ob1 == ob2
		187	|| ob1->type != ob2->type
		188	|| ob1->speed != ob2->speed
		189	|| ob1->value != ob2->value
		190	|| ob1->name != ob2->name)
198	return 0;	191	return 0;
199		192
200	if (ob1->speed != ob2->speed)	193	/* Do not merge objects if nrof would overflow, assume nrof
		194	* is always 0 .. 2**31-1 */
		195	if (ob1->nrof > 0x7fffffff - ob2->nrof)
201	return 0;	196	return 0;
202		197
203	/* Do not merge objects if nrof would overflow. We use 1UL<<31 since that
204	* value could not be stored in a sint32 (which unfortunately sometimes is
205	* used to store nrof).
206	*/
207	if (ob1->nrof + ob2->nrof >= 1UL << 31)
208	return 0;
209
210	/* If the objects have been identified, set the BEEN_APPLIED flag.	198	/* If the objects have been identified, set the BEEN_APPLIED flag.
211	* This is to the comparison of the flags below will be OK. We	199	* This is to the comparison of the flags below will be OK. We
212	* just can't ignore the been applied or identified flags, as they	200	* just can't ignore the been applied or identified flags, as they
213	* are not equal - just if it has been identified, the been_applied	201	* are not equal - just if it has been identified, the been_applied
214	* flags lose any meaning.	202	* flags lose any meaning.
215	*/	203	*/
216	if (QUERY_FLAG (ob1, FLAG_IDENTIFIED))	204	if (QUERY_FLAG (ob1, FLAG_IDENTIFIED))
217	SET_FLAG (ob1, FLAG_BEEN_APPLIED);	205	SET_FLAG (ob1, FLAG_BEEN_APPLIED);
218		206
219	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))	207	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))
220	SET_FLAG (ob2, FLAG_BEEN_APPLIED);	208	SET_FLAG (ob2, FLAG_BEEN_APPLIED);
221		209
222		210	if (ob1->arch->archname != ob2->arch->archname
223	/* the 0x400000 on flags2 is FLAG_INV_LOCK. I don't think something
224	* being locked in inventory should prevent merging.
225	* 0x4 in flags3 is CLIENT_SENT
226	*/
227	if ((ob1->arch != ob2->arch) ||
228	(ob1->flags[0] != ob2->flags[0]) ||
229	(ob1->flags[1] != ob2->flags[1]) ||
230	((ob1->flags[2] & ~0x400000) != (ob2->flags[2] & ~0x400000)) ||
231	((ob1->flags[3] & ~0x4) != (ob2->flags[3] & ~0x4)) ||
232	(ob1->name != ob2->name) ||	211	|| ob1->name != ob2->name
233	(ob1->title != ob2->title) ||	212	|| ob1->title != ob2->title
234	(ob1->msg != ob2->msg) ||	213	|| ob1->msg != ob2->msg
235	(ob1->weight != ob2->weight) ||	214	|| ob1->weight != ob2->weight
236	(memcmp (&ob1->resist, &ob2->resist, sizeof (ob1->resist)) != 0) ||
237	(memcmp (&ob1->stats, &ob2->stats, sizeof (ob1->stats)) != 0) ||
238	(ob1->attacktype != ob2->attacktype) ||	215	|| ob1->attacktype != ob2->attacktype
239	(ob1->magic != ob2->magic) ||	216	|| ob1->magic != ob2->magic
240	(ob1->slaying != ob2->slaying) ||	217	|| ob1->slaying != ob2->slaying
241	(ob1->skill != ob2->skill) ||	218	|| ob1->skill != ob2->skill
242	(ob1->value != ob2->value) ||	219	|| ob1->value != ob2->value
243	(ob1->animation_id != ob2->animation_id) ||	220	|| ob1->animation_id != ob2->animation_id
		221	|| (ob1->face != ob2->face && !ob1->animation_id) // face and animation are dependent on each other
244	(ob1->client_type != ob2->client_type) ||	222	|| ob1->client_type != ob2->client_type
245	(ob1->materialname != ob2->materialname) ||	223	|| ob1->materialname != ob2->materialname
246	(ob1->lore != ob2->lore) ||	224	|| ob1->lore != ob2->lore
247	(ob1->subtype != ob2->subtype) ||	225	|| ob1->subtype != ob2->subtype
248	(ob1->move_type != ob2->move_type) ||	226	|| ob1->move_type != ob2->move_type
249	(ob1->move_block != ob2->move_block) ||	227	|| ob1->move_block != ob2->move_block
250	(ob1->move_allow != ob2->move_allow) ||	228	|| ob1->move_allow != ob2->move_allow
251	(ob1->move_on != ob2->move_on) ||	229	|| ob1->move_on != ob2->move_on
252	(ob1->move_off != ob2->move_off) || (ob1->move_slow != ob2->move_slow) || (ob1->move_slow_penalty != ob2->move_slow_penalty))	230	|| ob1->move_off != ob2->move_off
		231	|| ob1->move_slow != ob2->move_slow
		232	|| ob1->move_slow_penalty != ob2->move_slow_penalty
		233	|| memcmp (&ob1->resist, &ob2->resist, sizeof (ob1->resist))
		234	|| memcmp (&ob1->stats , &ob2->stats , sizeof (ob1->stats)))
253	return 0;	235	return 0;
254		236
		237	if ((ob1->flag ^ ob2->flag)
		238	.reset (FLAG_INV_LOCKED)
		239	.reset (FLAG_REMOVED)
		240	.any ())
		241	return 0;
		242
255	/* This is really a spellbook check - really, we should	243	/* This is really a spellbook check - we should in general
256	* check all objects in the inventory.	244	* not merge objects with real inventories, as splitting them
		245	* is hard.
257	*/	246	*/
258	if (ob1->inv || ob2->inv)	247	if (ob1->inv || ob2->inv)
259	{	248	{
260	/* if one object has inventory but the other doesn't, not equiv */
261	if ((ob1->inv && !ob2->inv) || (ob2->inv && !ob1->inv))
262	return 0;
263
264	/* Now check to see if the two inventory objects could merge */
265	if (!CAN_MERGE (ob1->inv, ob2->inv))	249	if (!(ob1->inv && ob2->inv))
266	return 0;	250	return 0; /* inventories differ in length */
		251
		252	if (ob1->inv->below || ob2->inv->below)
		253	return 0; /* more than one object in inv */
		254
		255	if (!object::can_merge (ob1->inv, ob2->inv))
		256	return 0; /* inventory objects differ */
267		257
268	/* inventory ok - still need to check rest of this object to see	258	/* inventory ok - still need to check rest of this object to see
269	* if it is valid.	259	* if it is valid.
270	*/	260	*/
271	}	261	}
…		…
279		269
280	/* Note sure why the following is the case - either the object has to	270	/* Note sure why the following is the case - either the object has to
281	* be animated or have a very low speed. Is this an attempted monster	271	* be animated or have a very low speed. Is this an attempted monster
282	* check?	272	* check?
283	*/	273	*/
284	if (!QUERY_FLAG (ob1, FLAG_ANIMATE) && FABS ((ob1)->speed) > MIN_ACTIVE_SPEED)	274	if (!QUERY_FLAG (ob1, FLAG_ANIMATE) && ob1->has_active_speed ())
285	return 0;	275	return 0;
286		276
287	switch (ob1->type)	277	switch (ob1->type)
288	{	278	{
289	case SCROLL:	279	case SCROLL:
290	if (ob1->level != ob2->level)	280	if (ob1->level != ob2->level)
291	return 0;	281	return 0;
292	break;	282	break;
293	}	283	}
294		284
295	if (ob1->key_values != NULL || ob2->key_values != NULL)	285	if (ob1->key_values || ob2->key_values)
296	{	286	{
297	/* At least one of these has key_values. */	287	/* At least one of these has key_values. */
298	if ((ob1->key_values == NULL) != (ob2->key_values == NULL))	288	if ((!ob1->key_values) != (!ob2->key_values))
299	/* One has fields, but the other one doesn't. */	289	return 0; /* One has fields, but the other one doesn't. */
		290
		291	if (!compare_ob_value_lists (ob1, ob2))
300	return 0;	292	return 0;
301	else if (!compare_ob_value_lists (ob1, ob2))
302	return 0;
303	}	293	}
304		294
305	//TODO: generate an event or call into perl for additional checks
306	if (ob1->self || ob2->self)	295	if (ob1->self || ob2->self)
307	{	296	{
308	ob1->optimise ();	297	ob1->optimise ();
309	ob2->optimise ();	298	ob2->optimise ();
310		299
311	if (ob1->self || ob2->self)	300	if (ob1->self || ob2->self)
		301	{
		302	int k1 = ob1->self ? HvTOTALKEYS (ob1->self) : 0;
		303	int k2 = ob2->self ? HvTOTALKEYS (ob2->self) : 0;
		304
		305	if (k1 != k2)
312	return 0;	306	return 0;
		307
		308	if (k1 == 0)
		309	return 1;
		310
		311	if (!cfperl_can_merge (ob1, ob2))
		312	return 0;
		313	}
313	}	314	}
314		315
315	/* Everything passes, must be OK. */	316	/* Everything passes, must be OK. */
316	return 1;	317	return 1;
317	}	318	}
318		319
		320	// find player who can see this object
		321	object *
		322	object::visible_to () const
		323	{
		324	if (client_visible () && !flag [FLAG_REMOVED])
		325	{
		326	// see if we are in a container of sorts
		327	if (env)
		328	{
		329	// the player inventory itself is always visible
		330	if (env->is_player ())
		331	return env;
		332
		333	// else a player could have our env open
		334	object *envest = env->outer_env_or_self ();
		335
		336	// the player itself is always on a map, so we will find him here
		337	// even if our inv is in a player.
		338	if (envest->is_on_map ())
		339	if (object *pl = envest->ms ().player ())
		340	if (pl->container_ () == env)
		341	return pl;
		342	}
		343	else
		344	{
		345	// maybe there is a player standing on the same mapspace
		346	// this will catch the case where "this" is a player
		347	if (object *pl = ms ().player ())
		348	if ((pl->contr->ns && !pl->container_ () && !pl->contr->ns->update_look)
		349	|| pl->container_ () == this)
		350	return pl;
		351	}
		352	}
		353
		354	return 0;
		355	}
		356
		357	// adjust weight per container type ("of holding")
		358	static sint32
		359	weight_adjust_for (object *op, sint32 weight)
		360	{
		361	return op->type == CONTAINER
		362	? lerp (weight, 0, 100, 0, 100 - op->stats.Str)
		363	: weight;
		364	}
		365
319	/*	366	/*
		367	* adjust_weight(object, weight) adds the specified weight to an object,
		368	* and also updates how much the environment(s) is/are carrying.
		369	*/
		370	static void
		371	adjust_weight (object *op, sint32 weight)
		372	{
		373	while (op)
		374	{
		375	// adjust by actual difference to account for rounding errors
		376	// i.e. (w2 - w1) / f != w2 / f - w1 / f and the latter is correct
		377	weight = weight_adjust_for (op, op->carrying)
		378	- weight_adjust_for (op, op->carrying - weight);
		379
		380	if (!weight)
		381	return;
		382
		383	op->carrying += weight;
		384
		385	if (object *pl = op->visible_to ())
		386	if (pl != op) // player is handled lazily
		387	esrv_update_item (UPD_WEIGHT, pl, op);
		388
		389	op = op->env;
		390	}
		391	}
		392
		393	/*
320	* sum_weight() is a recursive function which calculates the weight	394	* this is a recursive function which calculates the weight
321	* an object is carrying. It goes through in figures out how much	395	* an object is carrying. It goes through op and figures out how much
322	* containers are carrying, and sums it up.	396	* containers are carrying, and sums it up.
323	*/	397	*/
324	long	398	void
325	sum_weight (object *op)	399	object::update_weight ()
326	{	400	{
327	long sum;	401	sint32 sum = 0;
328	object *inv;
329		402
330	for (sum = 0, inv = op->inv; inv != NULL; inv = inv->below)	403	for (object *op = inv; op; op = op->below)
331	{	404	{
332	if (inv->inv)	405	if (op->inv)
333	sum_weight (inv);	406	op->update_weight ();
334	sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1);	407
		408	sum += op->total_weight ();
		409	}
		410
		411	sum = weight_adjust_for (this, sum);
		412
		413	if (sum != carrying)
335	}	414	{
336
337	if (op->type == CONTAINER && op->stats.Str)
338	sum = (sum * (100 - op->stats.Str)) / 100;
339
340	if (op->carrying != sum)
341	op->carrying = sum;	415	carrying = sum;
342		416
343	return sum;	417	if (object *pl = visible_to ())
		418	if (pl != this) // player is handled lazily
		419	esrv_update_item (UPD_WEIGHT, pl, this);
		420	}
344	}	421	}
345		422
346	/**	423	/*
347	* Return the outermost environment object for a given object.	424	* Used by: Server DM commands: dumpbelow, dump. Some error messages.
348	*/	425	*/
349
350	object *
351	object_get_env_recursive (object *op)
352	{
353	while (op->env != NULL)
354	op = op->env;
355	return op;
356	}
357
358	/*
359	* Eneq(@csd.uu.se): Since we can have items buried in a character we need
360	* a better check. We basically keeping traversing up until we can't
361	* or find a player.
362	*/
363
364	object *
365	is_player_inv (object *op)
366	{
367	for (; op != NULL && op->type != PLAYER; op = op->env)
368	if (op->env == op)
369	op->env = NULL;
370	return op;
371	}
372
373	/*
374	* Used by: Crossedit: dump. Server DM commands: dumpbelow, dump.
375	* Some error messages.
376	* The result of the dump is stored in the static global errmsg array.
377	*/
378
379	char *	426	char *
380	dump_object (object *op)	427	dump_object (object *op)
381	{	428	{
382	if (!op)	429	if (!op)
383	return strdup ("[NULLOBJ]");	430	return strdup ("[NULLOBJ]");
384		431
385	object_freezer freezer;	432	object_freezer freezer;
386	save_object (freezer, op, 3);	433	op->write (freezer);
387	return freezer.as_string ();	434	return freezer.as_string ();
		435	}
		436
		437	char *
		438	object::as_string ()
		439	{
		440	return dump_object (this);
388	}	441	}
389		442
390	/*	443	/*
391	* get_nearest_part(multi-object, object 2) returns the part of the	444	* get_nearest_part(multi-object, object 2) returns the part of the
392	* multi-object 1 which is closest to the second object.	445	* multi-object 1 which is closest to the second object.
393	* If it's not a multi-object, it is returned.	446	* If it's not a multi-object, it is returned.
394	*/	447	*/
395
396	object *	448	object *
397	get_nearest_part (object *op, const object *pl)	449	get_nearest_part (object *op, const object *pl)
398	{	450	{
399	object *tmp, *closest;	451	object *tmp, *closest;
400	int last_dist, i;	452	int last_dist, i;
401		453
402	if (op->more == NULL)	454	if (!op->more)
403	return op;	455	return op;
		456
404	for (last_dist = distance (op, pl), closest = op, tmp = op->more; tmp != NULL; tmp = tmp->more)	457	for (last_dist = distance (op, pl), closest = op, tmp = op->more;
		458	tmp;
		459	tmp = tmp->more)
405	if ((i = distance (tmp, pl)) < last_dist)	460	if ((i = distance (tmp, pl)) < last_dist)
406	closest = tmp, last_dist = i;	461	closest = tmp, last_dist = i;
		462
407	return closest;	463	return closest;
408	}	464	}
409		465
410	/*	466	/*
411	* Returns the object which has the count-variable equal to the argument.	467	* Returns the object which has the count-variable equal to the argument.
		468	* VERRRY slow.
412	*/	469	*/
413
414	object *	470	object *
415	find_object (tag_t i)	471	find_object (tag_t i)
416	{	472	{
417	for (object *op = object::first; op; op = op->next)	473	for_all_objects (op)
418	if (op->count == i)	474	if (op->count == i)
419	return op;	475	return op;
420		476
421	return 0;	477	return 0;
422	}	478	}
423		479
424	/*	480	/*
425	* Returns the first object which has a name equal to the argument.	481	* Returns the first object which has a name equal to the argument.
426	* Used only by the patch command, but not all that useful.	482	* Used only by the patch command, but not all that useful.
427	* Enables features like "patch <name-of-other-player> food 999"	483	* Enables features like "patch <name-of-other-player> food 999"
428	*/	484	*/
429
430	object *	485	object *
431	find_object_name (const char *str)	486	find_object_name (const char *str)
432	{	487	{
433	shstr_cmp str_ (str);	488	shstr_cmp str_ (str);
434	object *op;
435		489
436	for (op = object::first; op != NULL; op = op->next)	490	if (str_)
		491	for_all_objects (op)
437	if (op->name == str_)	492	if (op->name == str_)
438	break;	493	return op;
439		494
440	return op;	495	return 0;
441	}
442
443	void
444	free_all_object_data ()
445	{
446	LOG (llevDebug, "%d allocated objects\n", nrofallocobjects);
447	}	496	}
448		497
449	/*	498	/*
450	* Sets the owner and sets the skill and exp pointers to owner's current	499	* Sets the owner and sets the skill and exp pointers to owner's current
451	* skill and experience objects.	500	* skill and experience objects.
		501	* ACTUALLY NO! investigate! TODO
452	*/	502	*/
453	void	503	void
454	object::set_owner (object *owner)	504	object::set_owner (object *owner)
455	{	505	{
		506	// allow objects which own objects
456	if (!owner)	507	if (owner)
457	return;
458
459	/* next line added to allow objects which own objects */
460	/* Add a check for ownercounts in here, as I got into an endless loop
461	* with the fireball owning a poison cloud which then owned the
462	* fireball. I believe that was caused by one of the objects getting
463	* freed and then another object replacing it. Since the ownercounts
464	* didn't match, this check is valid and I believe that cause is valid.
465	*/
466	while (owner->owner)	508	while (owner->owner)
467	owner = owner->owner;	509	owner = owner->owner;
		510
		511	if (flag [FLAG_FREED])
		512	{
		513	LOG (llevError | logBacktrace, "tried to set owner of %s to %s\n", debug_desc (), owner->debug_desc ());
		514	return;
		515	}
468		516
469	this->owner = owner;	517	this->owner = owner;
		518	}
		519
		520	int
		521	object::slottype () const
		522	{
		523	if (type == SKILL)
		524	{
		525	if (IS_COMBAT_SKILL (subtype)) return slot_combat;
		526	if (IS_RANGED_SKILL (subtype)) return slot_ranged;
		527	}
		528	else
		529	{
		530	if (slot [body_combat].info) return slot_combat;
		531	if (slot [body_range ].info) return slot_ranged;
		532	}
		533
		534	return slot_none;
		535	}
		536
		537	bool
		538	object::change_weapon (object *ob)
		539	{
		540	if (current_weapon == ob)
		541	return true;
		542
		543	if (chosen_skill)
		544	chosen_skill->flag [FLAG_APPLIED] = false;
		545
		546	current_weapon = ob;
		547	chosen_skill = !ob || ob->type == SKILL ? ob : find_skill_by_name (this, ob->skill);
		548
		549	if (chosen_skill)
		550	chosen_skill->flag [FLAG_APPLIED] = true;
		551
		552	update_stats ();
		553
		554	if (ob)
		555	{
		556	// now check wether any body locations became invalid, in which case
		557	// we cannot apply the weapon at the moment.
		558	for (int i = 0; i < NUM_BODY_LOCATIONS; ++i)
		559	if (slot[i].used < 0)
		560	{
		561	current_weapon = chosen_skill = 0;
		562	update_stats ();
		563
		564	new_draw_info_format (NDI_UNIQUE, 0, this,
		565	"You try to balance all your items at once, "
		566	"but the %s is just too much for your body. "
		567	"[You need to unapply some items first - use the 'body' command to see "
		568	"how many items you cna wera on a specific body part.]", &ob->name);
		569	return false;
		570	}
		571
		572	//new_draw_info_format (NDI_UNIQUE, 0, this, "You switch to your %s.", &ob->name);
		573	}
		574	else
		575	;//new_draw_info_format (NDI_UNIQUE, 0, this, "You unwield your weapons.");
		576
		577	if (ob && !ob->flag [FLAG_APPLIED] && ob->type != SPELL)
		578	{
		579	LOG (llevError | logBacktrace, "%s changed to unapplied weapon %s",
		580	&name, ob->debug_desc ());
		581	return false;
		582	}
		583
		584	return true;
470	}	585	}
471		586
472	/* Zero the key_values on op, decrementing the shared-string	587	/* Zero the key_values on op, decrementing the shared-string
473	* refcounts and freeing the links.	588	* refcounts and freeing the links.
474	*/	589	*/
475	static void	590	static void
476	free_key_values (object *op)	591	free_key_values (object *op)
477	{	592	{
478	for (key_value *i = op->key_values; i != 0;)	593	for (key_value *i = op->key_values; i; )
479	{	594	{
480	key_value *next = i->next;	595	key_value *next = i->next;
481	delete i;	596	delete i;
482		597
483	i = next;	598	i = next;
484	}	599	}
485		600
486	op->key_values = 0;	601	op->key_values = 0;
487	}	602	}
488		603
489	void object::clear ()
490	{
491	attachable_base::clear ();
492
493	free_key_values (this);
494
495	owner = 0;
496	name = 0;
497	name_pl = 0;
498	title = 0;
499	race = 0;
500	slaying = 0;
501	skill = 0;
502	msg = 0;
503	lore = 0;
504	custom_name = 0;
505	materialname = 0;
506	contr = 0;
507	below = 0;
508	above = 0;
509	inv = 0;
510	container = 0;
511	env = 0;
512	more = 0;
513	head = 0;
514	map = 0;
515	active_next = 0;
516	active_prev = 0;
517
518	memset (static_cast<object_pod *>(this), 0, sizeof (object_pod));
519
520	SET_FLAG (this, FLAG_REMOVED);
521
522	/* What is not cleared is next, prev, and count */
523
524	expmul = 1.0;
525	face = blank_face;
526
527	if (settings.casting_time)
528	casting_time = -1;
529	}
530
531	void object::clone (object *destination)
532	{
533	*(object_copy *)destination = *this;
534	*(object_pod *)destination = *this;
535
536	if (self || cb)
537	INVOKE_OBJECT (CLONE, this, ARG_OBJECT (destination));
538	}
539
540	/*	604	/*
541	* copy object first frees everything allocated by the second object,	605	* copy_to first frees everything allocated by the dst object,
542	* and then copies the contends of the first object into the second	606	* and then copies the contents of itself into the second
543	* object, allocating what needs to be allocated. Basically, any	607	* object, allocating what needs to be allocated. Basically, any
544	* data that is malloc'd needs to be re-malloc/copied. Otherwise,	608	* data that is malloc'd needs to be re-malloc/copied. Otherwise,
545	* if the first object is freed, the pointers in the new object	609	* if the first object is freed, the pointers in the new object
546	* will point at garbage.	610	* will point at garbage.
547	*/	611	*/
548	void	612	void
549	copy_object (object *op2, object *op)	613	object::copy_to (object *dst)
550	{	614	{
551	bool is_freed = QUERY_FLAG (op, FLAG_FREED);	615	dst->remove ();
552	bool is_removed = QUERY_FLAG (op, FLAG_REMOVED);	616	*(object_copy *)dst = *this;
553		617	dst->flag [FLAG_REMOVED] = true;
554	op2->clone (op);
555
556	if (is_freed)
557	SET_FLAG (op, FLAG_FREED);
558	if (is_removed)
559	SET_FLAG (op, FLAG_REMOVED);
560
561	if (op2->speed < 0)
562	op->speed_left = op2->speed_left - RANDOM () % 200 / 100.0;
563		618
564	/* Copy over key_values, if any. */	619	/* Copy over key_values, if any. */
565	if (op2->key_values)	620	if (key_values)
566	{	621	{
567	key_value *tail = 0;	622	key_value *tail = 0;
568	key_value *i;
569
570	op->key_values = 0;	623	dst->key_values = 0;
571		624
572	for (i = op2->key_values; i; i = i->next)	625	for (key_value *i = key_values; i; i = i->next)
573	{	626	{
574	key_value *new_link = new key_value;	627	key_value *new_link = new key_value;
575		628
576	new_link->next = 0;	629	new_link->next = 0;
577	new_link->key = i->key;	630	new_link->key = i->key;
578	new_link->value = i->value;	631	new_link->value = i->value;
579		632
580	/* Try and be clever here, too. */	633	/* Try and be clever here, too. */
581	if (!op->key_values)	634	if (!dst->key_values)
582	{	635	{
583	op->key_values = new_link;	636	dst->key_values = new_link;
584	tail = new_link;	637	tail = new_link;
585	}	638	}
586	else	639	else
587	{	640	{
588	tail->next = new_link;	641	tail->next = new_link;
589	tail = new_link;	642	tail = new_link;
590	}	643	}
591	}	644	}
592	}	645	}
593		646
594	update_ob_speed (op);	647	if (speed < 0)
		648	dst->speed_left -= rndm ();
		649
		650	dst->activate ();
		651	}
		652
		653	void
		654	object::instantiate ()
		655	{
		656	if (!uuid.seq) // HACK
		657	uuid = UUID::gen ();
		658
		659	speed_left = -0.1f;
		660	/* copy the body_info to the body_used - this is only really
		661	* need for monsters, but doesn't hurt to do it for everything.
		662	* by doing so, when a monster is created, it has good starting
		663	* values for the body_used info, so when items are created
		664	* for it, they can be properly equipped.
		665	*/
		666	for (int i = NUM_BODY_LOCATIONS; i--; )
		667	slot[i].used = slot[i].info;
		668
		669	attachable::instantiate ();
		670	}
		671
		672	object *
		673	object::clone ()
		674	{
		675	object *neu = create ();
		676	copy_to (neu);
		677	neu->map = map; // not copied by copy_to
		678	return neu;
595	}	679	}
596		680
597	/*	681	/*
598	* If an object with the IS_TURNABLE() flag needs to be turned due	682	* If an object with the IS_TURNABLE() flag needs to be turned due
599	* to the closest player being on the other side, this function can	683	* to the closest player being on the other side, this function can
600	* be called to update the face variable, _and_ how it looks on the map.	684	* be called to update the face variable, _and_ how it looks on the map.
601	*/	685	*/
602
603	void	686	void
604	update_turn_face (object *op)	687	update_turn_face (object *op)
605	{	688	{
606	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || op->arch == NULL)	689	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || !op->arch)
607	return;	690	return;
		691
608	SET_ANIMATION (op, op->direction);	692	SET_ANIMATION (op, op->direction);
609	update_object (op, UP_OBJ_FACE);	693	update_object (op, UP_OBJ_FACE);
610	}	694	}
611		695
612	/*	696	/*
613	* Updates the speed of an object. If the speed changes from 0 to another	697	* Updates the speed of an object. If the speed changes from 0 to another
614	* value, or vice versa, then add/remove the object from the active list.	698	* value, or vice versa, then add/remove the object from the active list.
615	* This function needs to be called whenever the speed of an object changes.	699	* This function needs to be called whenever the speed of an object changes.
616	*/	700	*/
617	void	701	void
618	update_ob_speed (object *op)	702	object::set_speed (float speed)
619	{	703	{
620	extern int arch_init;	704	if (flag [FLAG_FREED] && speed)
621
622	/* No reason putting the archetypes objects on the speed list,
623	* since they never really need to be updated.
624	*/
625
626	if (QUERY_FLAG (op, FLAG_FREED) && op->speed)
627	{	705	{
628	LOG (llevError, "Object %s is freed but has speed.\n", &op->name);	706	LOG (llevError, "Object %s is freed but has speed.\n", &name);
629	#ifdef MANY_CORES
630	abort ();
631	#else
632	op->speed = 0;	707	speed = 0;
633	#endif
634	}
635
636	if (arch_init)
637	return;
638
639	if (FABS (op->speed) > MIN_ACTIVE_SPEED)
640	{	708	}
641	/* If already on active list, don't do anything */
642	if (op->active_next || op->active_prev || op == active_objects)
643	return;
644		709
645	/* process_events() expects us to insert the object at the beginning	710	this->speed = speed;
646	* of the list. */
647	op->active_next = active_objects;
648		711
649	if (op->active_next != NULL)	712	if (has_active_speed ())
650	op->active_next->active_prev = op;	713	activate ();
651
652	active_objects = op;
653	}
654	else	714	else
655	{	715	deactivate ();
656	/* If not on the active list, nothing needs to be done */
657	if (!op->active_next && !op->active_prev && op != active_objects)
658	return;
659
660	if (op->active_prev == NULL)
661	{
662	active_objects = op->active_next;
663
664	if (op->active_next != NULL)
665	op->active_next->active_prev = NULL;
666	}
667	else
668	{
669	op->active_prev->active_next = op->active_next;
670
671	if (op->active_next)
672	op->active_next->active_prev = op->active_prev;
673	}
674
675	op->active_next = NULL;
676	op->active_prev = NULL;
677	}
678	}	716	}
679		717
680	/* This function removes object 'op' from the list of active
681	* objects.
682	* This should only be used for style maps or other such
683	* reference maps where you don't want an object that isn't
684	* in play chewing up cpu time getting processed.
685	* The reverse of this is to call update_ob_speed, which
686	* will do the right thing based on the speed of the object.
687	*/
688	void
689	remove_from_active_list (object *op)
690	{
691	/* If not on the active list, nothing needs to be done */
692	if (!op->active_next && !op->active_prev && op != active_objects)
693	return;
694
695	if (op->active_prev == NULL)
696	{
697	active_objects = op->active_next;
698	if (op->active_next != NULL)
699	op->active_next->active_prev = NULL;
700	}
701	else
702	{
703	op->active_prev->active_next = op->active_next;
704	if (op->active_next)
705	op->active_next->active_prev = op->active_prev;
706	}
707	op->active_next = NULL;
708	op->active_prev = NULL;
709	}
710
711	/*	718	/*
712	* update_object() updates the array which represents the map.	719	* update_object() updates the the map.
713	* It takes into account invisible objects (and represent squares covered	720	* It takes into account invisible objects (and represent squares covered
714	* by invisible objects by whatever is below them (unless it's another	721	* by invisible objects by whatever is below them (unless it's another
715	* invisible object, etc...)	722	* invisible object, etc...)
716	* If the object being updated is beneath a player, the look-window	723	* If the object being updated is beneath a player, the look-window
717	* of that player is updated (this might be a suboptimal way of	724	* of that player is updated (this might be a suboptimal way of
718	* updating that window, though, since update_object() is called _often_)	725	* updating that window, though, since update_object() is called _often_)
719	*	726	*
720	* action is a hint of what the caller believes need to be done.	727	* action is a hint of what the caller believes need to be done.
721	* For example, if the only thing that has changed is the face (due to
722	* an animation), we don't need to call update_position until that actually
723	* comes into view of a player. OTOH, many other things, like addition/removal
724	* of walls or living creatures may need us to update the flags now.
725	* current action are:	728	* current action are:
726	* UP_OBJ_INSERT: op was inserted	729	* UP_OBJ_INSERT: op was inserted
727	* UP_OBJ_REMOVE: op was removed	730	* UP_OBJ_REMOVE: op was removed
728	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update	731	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update
729	* as that is easier than trying to look at what may have changed.	732	* as that is easier than trying to look at what may have changed.
730	* UP_OBJ_FACE: only the objects face has changed.	733	* UP_OBJ_FACE: only the objects face has changed.
731	*/	734	*/
732
733	void	735	void
734	update_object (object *op, int action)	736	update_object (object *op, int action)
735	{	737	{
736	int update_now = 0, flags;	738	if (!op)
737	MoveType move_on, move_off, move_block, move_slow;
738
739	if (op == NULL)
740	{	739	{
741	/* this should never happen */	740	/* this should never happen */
742	LOG (llevDebug, "update_object() called for NULL object.\n");	741	LOG (llevError | logBacktrace, "update_object() called for NULL object.\n");
743	return;	742	return;
744	}	743	}
745		744
746	if (op->env != NULL)	745	if (!op->is_on_map ())
747	{	746	{
748	/* Animation is currently handled by client, so nothing	747	/* Animation is currently handled by client, so nothing
749	* to do in this case.	748	* to do in this case.
750	*/	749	*/
751	return;	750	return;
752	}	751	}
753		752
754	/* If the map is saving, don't do anything as everything is
755	* going to get freed anyways.
756	*/
757	if (!op->map || op->map->in_memory == MAP_SAVING)
758	return;
759
760	/* make sure the object is within map boundaries */	753	/* make sure the object is within map boundaries */
761	if (op->x < 0 || op->x >= MAP_WIDTH (op->map) || op->y < 0 || op->y >= MAP_HEIGHT (op->map))	754	if (op->x < 0 || op->x >= op->map->width || op->y < 0 || op->y >= op->map->height)
762	{	755	{
763	LOG (llevError, "update_object() called for object out of map!\n");	756	LOG (llevError, "update_object() called for object out of map!\n");
764	#ifdef MANY_CORES	757	#ifdef MANY_CORES
765	abort ();	758	abort ();
766	#endif	759	#endif
767	return;	760	return;
768	}	761	}
769		762
770	flags = GET_MAP_FLAGS (op->map, op->x, op->y);	763	mapspace &m = op->ms ();
771	SET_MAP_FLAGS (op->map, op->x, op->y, flags | P_NEED_UPDATE);
772	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);
773	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);
774	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);
775	move_off = GET_MAP_MOVE_OFF (op->map, op->x, op->y);
776		764
		765	if (!(m.flags_ & P_UPTODATE))
		766	/* nop */;
777	if (action == UP_OBJ_INSERT)	767	else if (action == UP_OBJ_INSERT)
778	{	768	{
		769	// this is likely overkill, TODO: revisit (schmorp)
779	if (QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(flags & P_BLOCKSVIEW))	770	if ((QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(m.flags_ & P_BLOCKSVIEW))
780	update_now = 1;
781
782	if (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(flags & P_NO_MAGIC))	771	|| (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(m.flags_ & P_NO_MAGIC))
783	update_now = 1;	772	|| (op->is_player () && !(m.flags_ & P_PLAYER))
784		773	|| (op->type == SAFE_GROUND && !(m.flags_ & P_SAFE))
		774	|| (QUERY_FLAG (op, FLAG_ALIVE) && !(m.flags_ & P_IS_ALIVE))
785	if (QUERY_FLAG (op, FLAG_DAMNED) && !(flags & P_NO_CLERIC))	775	|| (QUERY_FLAG (op, FLAG_DAMNED) && !(m.flags_ & P_NO_CLERIC))
786	update_now = 1;
787
788	if (QUERY_FLAG (op, FLAG_ALIVE) && !(flags & P_IS_ALIVE))
789	update_now = 1;
790
791	if (op->type == SAFE_GROUND && !(flags & P_SAFE))
792	update_now = 1;
793
794	if ((move_on | op->move_on) != move_on)	776	|| (m.move_on | op->move_on ) != m.move_on
795	update_now = 1;
796
797	if ((move_off | op->move_off) != move_off)	777	|| (m.move_off | op->move_off ) != m.move_off
798	update_now = 1;	778	|| (m.move_slow | op->move_slow) != m.move_slow
799
800	/* This isn't perfect, but I don't expect a lot of objects to	779	/* This isn't perfect, but I don't expect a lot of objects to
801	* to have move_allow right now.	780	* have move_allow right now.
802	*/	781	*/
803	if (((move_block | op->move_block) & ~op->move_allow) != move_block)	782	|| ((m.move_block | op->move_block) & ~op->move_allow) != m.move_block
804	update_now = 1;	783	|| 1) // the above is not strong enough a test to skip updating. los maybe? TODO (Schmorp)
805		784	m.invalidate ();
806	if ((move_slow | op->move_slow) != move_slow)
807	update_now = 1;
808	}	785	}
809	/* if the object is being removed, we can't make intelligent	786	/* if the object is being removed, we can't make intelligent
810	* decisions, because remove_ob can't really pass the object	787	* decisions, because remove_ob can't really pass the object
811	* that is being removed.	788	* that is being removed.
812	*/	789	*/
813	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)	790	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)
814	update_now = 1;	791	m.invalidate ();
815	else if (action == UP_OBJ_FACE)	792	else if (action == UP_OBJ_FACE)
816	/* Nothing to do for that case */ ;	793	/* Nothing to do for that case */ ;
817	else	794	else
818	LOG (llevError, "update_object called with invalid action: %d\n", action);	795	LOG (llevError, "update_object called with invalid action: %d\n", action);
819		796
820	if (update_now)
821	{
822	SET_MAP_FLAGS (op->map, op->x, op->y, flags | P_NO_ERROR | P_NEED_UPDATE);
823	update_position (op->map, op->x, op->y);
824	}
825
826	if (op->more != NULL)	797	if (op->more)
827	update_object (op->more, action);	798	update_object (op->more, action);
828	}	799	}
829		800
830	object::vector object::mortals;
831	object::vector object::objects; // not yet used
832	object *object::first;
833
834	void object::free_mortals ()
835	{
836	for (AUTODECL (i, mortals.begin ()); i != mortals.end ();)
837	if ((*i)->refcnt)
838	++i; // further delay freeing
839	else
840	{
841	delete *i;
842	mortals.erase (i);
843	}
844
845	static int lastmortals = 0;//D
846
847	if (mortals.size() != lastmortals && lastmortals > 100)//D
848	{
849	lastmortals = mortals.size ();//D
850	LOG (llevDebug, "%d objects in mortal queue\n", lastmortals);//D
851	}
852	}
853
854	object::object ()	801	object::object ()
855	{	802	{
856	SET_FLAG (this, FLAG_REMOVED);	803	SET_FLAG (this, FLAG_REMOVED);
857		804
858	expmul = 1.0;	805	//expmul = 1.0; declared const for the time being
859	face = blank_face;	806	face = blank_face;
860	}	807	}
861		808
862	object::~object ()	809	object::~object ()
863	{	810	{
		811	unlink ();
		812
864	free_key_values (this);	813	free_key_values (this);
865	}	814	}
866		815
		816	static int object_count;
		817
867	void object::link ()	818	void object::link ()
868	{	819	{
		820	assert (!index);//D
		821	uuid = UUID::gen ();
869	count = ++ob_count;	822	count = ++object_count;
870	uuid = gen_uuid ();
871		823
872	prev = 0;	824	refcnt_inc ();
873	next = object::first;	825	objects.insert (this);
874
875	if (object::first)
876	object::first->prev = this;
877
878	object::first = this;
879	}	826	}
880		827
881	void object::unlink ()	828	void object::unlink ()
882	{	829	{
883	if (this == object::first)	830	if (!index)
884	object::first = next;	831	return;
885		832
886	/* Remove this object from the list of used objects */	833	objects.erase (this);
887	if (prev) prev->next = next;	834	refcnt_dec ();
888	if (next) next->prev = prev;	835	}
889		836
890	prev = 0;	837	void
891	next = 0;	838	object::activate ()
		839	{
		840	/* If already on active list, don't do anything */
		841	if (active)
		842	return;
		843
		844	if (has_active_speed ())
		845	{
		846	if (flag [FLAG_FREED])
		847	LOG (llevError | logBacktrace, "BUG: tried to activate freed object %s\n", debug_desc ());//D
		848
		849	actives.insert (this);
		850	}
		851	}
		852
		853	void
		854	object::activate_recursive ()
		855	{
		856	activate ();
		857
		858	for (object *op = inv; op; op = op->below)
		859	op->activate_recursive ();
		860	}
		861
		862	/* This function removes object 'op' from the list of active
		863	* objects.
		864	* This should only be used for style maps or other such
		865	* reference maps where you don't want an object that isn't
		866	* in play chewing up cpu time getting processed.
		867	* The reverse of this is to call update_ob_speed, which
		868	* will do the right thing based on the speed of the object.
		869	*/
		870	void
		871	object::deactivate ()
		872	{
		873	/* If not on the active list, nothing needs to be done */
		874	if (!active)
		875	return;
		876
		877	actives.erase (this);
		878	}
		879
		880	void
		881	object::deactivate_recursive ()
		882	{
		883	for (object *op = inv; op; op = op->below)
		884	op->deactivate_recursive ();
		885
		886	deactivate ();
		887	}
		888
		889	void
		890	object::set_flag_inv (int flag, int value)
		891	{
		892	for (object *op = inv; op; op = op->below)
		893	{
		894	op->flag [flag] = value;
		895	op->set_flag_inv (flag, value);
		896	}
		897	}
		898
		899	/*
		900	* Remove and free all objects in the inventory of the given object.
		901	* object.c ?
		902	*/
		903	void
		904	object::destroy_inv (bool drop_to_ground)
		905	{
		906	// need to check first, because the checks below might segfault
		907	// as we might be on an invalid mapspace and crossfire code
		908	// is too buggy to ensure that the inventory is empty.
		909	// corollary: if you create arrows etc. with stuff in its inventory,
		910	// cf will crash below with off-map x and y
		911	if (!inv)
		912	return;
		913
		914	/* Only if the space blocks everything do we not process -
		915	* if some form of movement is allowed, let objects
		916	* drop on that space.
		917	*/
		918	if (!drop_to_ground
		919	|| !map
		920	|| map->in_memory != MAP_ACTIVE
		921	|| map->no_drop
		922	|| ms ().move_block == MOVE_ALL)
		923	{
		924	while (inv)
		925	inv->destroy ();
		926	}
		927	else
		928	{ /* Put objects in inventory onto this space */
		929	while (inv)
		930	{
		931	object *op = inv;
		932
		933	if (op->flag [FLAG_STARTEQUIP]
		934	|| op->flag [FLAG_NO_DROP]
		935	|| op->type == RUNE
		936	|| op->type == TRAP
		937	|| op->flag [FLAG_IS_A_TEMPLATE]
		938	|| op->flag [FLAG_DESTROY_ON_DEATH])
		939	op->destroy ();
		940	else
		941	map->insert (op, x, y);
		942	}
		943	}
892	}	944	}
893		945
894	object *object::create ()	946	object *object::create ()
895	{	947	{
896	object *op = new object;	948	object *op = new object;
897	op->link ();	949	op->link ();
898	return op;	950	return op;
899	}	951	}
900		952
901	/*	953	static struct freed_map : maptile
902	* free_object() frees everything allocated by an object, removes
903	* it from the list of used objects, and puts it on the list of
904	* free objects. The IS_FREED() flag is set in the object.
905	* The object must have been removed by remove_ob() first for
906	* this function to succeed.
907	*
908	* If destroy_inventory is set, free inventory as well. Else drop items in
909	* inventory to the ground.
910	*/
911	void object::destroy (bool destroy_inventory)
912	{	954	{
913	if (QUERY_FLAG (this, FLAG_FREED))	955	freed_map ()
		956	{
		957	path = "<freed objects map>";
		958	name = "/internal/freed_objects_map";
		959	width = 3;
		960	height = 3;
		961	no_drop = 1;
		962	no_reset = 1;
		963
		964	alloc ();
		965	in_memory = MAP_ACTIVE;
		966	}
		967
		968	~freed_map ()
		969	{
		970	destroy ();
		971	}
		972	} freed_map; // freed objects are moved here to avoid crashes
		973
		974	void
		975	object::do_destroy ()
		976	{
		977	if (flag [FLAG_IS_LINKED])
		978	remove_link ();
		979
		980	if (flag [FLAG_FRIENDLY])
		981	remove_friendly_object (this);
		982
		983	remove ();
		984
		985	attachable::do_destroy ();
		986
		987	deactivate ();
		988	unlink ();
		989
		990	flag [FLAG_FREED] = 1;
		991
		992	// hack to ensure that freed objects still have a valid map
		993	map = &freed_map;
		994	x = 1;
		995	y = 1;
		996
		997	if (more)
		998	{
		999	more->destroy ();
		1000	more = 0;
		1001	}
		1002
		1003	head = 0;
		1004
		1005	// clear those pointers that likely might cause circular references
		1006	owner = 0;
		1007	enemy = 0;
		1008	attacked_by = 0;
		1009	current_weapon = 0;
		1010	}
		1011
		1012	void
		1013	object::destroy ()
		1014	{
		1015	if (destroyed ())
914	return;	1016	return;
915		1017
916	if (QUERY_FLAG (this, FLAG_FRIENDLY))	1018	if (!is_head () && !head->destroyed ())
917	remove_friendly_object (this);
918
919	if (!QUERY_FLAG (this, FLAG_REMOVED))
920	remove_ob (this);
921
922	SET_FLAG (this, FLAG_FREED);
923
924	if (more)
925	{
926	more->destroy (destroy_inventory);
927	more = 0;
928	}	1019	{
929		1020	LOG (llevError | logBacktrace, "tried to destroy the tail of an object");
930	if (inv)	1021	head->destroy ();
		1022	return;
931	{	1023	}
932	/* Only if the space blocks everything do we not process -
933	* if some form of movement is allowed, let objects
934	* drop on that space.
935	*/
936	if (destroy_inventory || !map || map->in_memory != MAP_IN_MEMORY || GET_MAP_MOVE_BLOCK (map, x, y) == MOVE_ALL)
937	{
938	object *op = inv;
939		1024
940	while (op)	1025	destroy_inv (false);
941	{
942	object *tmp = op->below;
943	op->destroy (destroy_inventory);
944	op = tmp;
945	}
946	}
947	else
948	{ /* Put objects in inventory onto this space */
949	object *op = inv;
950		1026
951	while (op)	1027	if (is_head ())
952	{	1028	if (sound_destroy)
953	object *tmp = op->below;	1029	play_sound (sound_destroy);
		1030	else if (flag [FLAG_MONSTER])
		1031	play_sound (sound_find ("monster_destroy")); // quick hack, too lazy to create a generic mechanism
954		1032
955	remove_ob (op);	1033	attachable::destroy ();
956
957	if (QUERY_FLAG (op, FLAG_STARTEQUIP)
958	|| QUERY_FLAG (op, FLAG_NO_DROP) || op->type == RUNE || op->type == TRAP || QUERY_FLAG (op, FLAG_IS_A_TEMPLATE))
959	free_object (op);
960	else
961	{
962	op->x = x;
963	op->y = y;
964	insert_ob_in_map (op, map, 0, 0); /* Insert in same map as the envir */
965	}
966
967	op = tmp;
968	}
969	}
970	}
971
972	// clear those pointers that likely might have circular references to us
973	owner = 0;
974	enemy = 0;
975	attacked_by = 0;
976
977	// only relevant for players(?), but make sure of it anyways
978	contr = 0;
979
980	/* Remove object from the active list */
981	speed = 0;
982	update_ob_speed (this);
983
984	unlink ();
985
986	mortals.push_back (this);
987	}	1034	}
988		1035
989	/*	1036	/* op->remove ():
990	* sub_weight() recursively (outwards) subtracts a number from the
991	* weight of an object (and what is carried by it's environment(s)).
992	*/
993
994	void
995	sub_weight (object *op, signed long weight)
996	{
997	while (op != NULL)
998	{
999	if (op->type == CONTAINER)
1000	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1001
1002	op->carrying -= weight;
1003	op = op->env;
1004	}
1005	}
1006
1007	/* remove_ob(op):
1008	* This function removes the object op from the linked list of objects	1037	* This function removes the object op from the linked list of objects
1009	* which it is currently tied to. When this function is done, the	1038	* which it is currently tied to. When this function is done, the
1010	* object will have no environment. If the object previously had an	1039	* object will have no environment. If the object previously had an
1011	* environment, the x and y coordinates will be updated to	1040	* environment, the x and y coordinates will be updated to
1012	* the previous environment.	1041	* the previous environment.
1013	* Beware: This function is called from the editor as well!
1014	*/	1042	*/
1015
1016	void	1043	void
1017	remove_ob (object *op)	1044	object::do_remove ()
1018	{	1045	{
1019	object *tmp, *last = 0;	1046	object *tmp, *last = 0;
1020	object *otmp;	1047	object *otmp;
1021		1048
1022	int check_walk_off;	1049	if (flag [FLAG_REMOVED])
1023	maptile *m;
1024
1025	sint16 x, y;
1026
1027	if (QUERY_FLAG (op, FLAG_REMOVED))
1028	return;	1050	return;
1029		1051
1030	SET_FLAG (op, FLAG_REMOVED);	1052	INVOKE_OBJECT (REMOVE, this);
1031		1053
1032	if (op->more != NULL)	1054	flag [FLAG_REMOVED] = true;
1033	remove_ob (op->more);	1055
		1056	if (more)
		1057	more->remove ();
1034		1058
1035	/*	1059	/*
1036	* In this case, the object to be removed is in someones	1060	* In this case, the object to be removed is in someones
1037	* inventory.	1061	* inventory.
1038	*/	1062	*/
1039	if (op->env != NULL)	1063	if (env)
1040	{	1064	{
1041	if (op->nrof)	1065	flag [FLAG_REMOVED] = false; // hack around the issue of visible_to checking flag_removed
1042	sub_weight (op->env, op->weight * op->nrof);	1066	if (object *pl = visible_to ())
1043	else	1067	esrv_del_item (pl->contr, count);
1044	sub_weight (op->env, op->weight + op->carrying);	1068	flag [FLAG_REMOVED] = true; // hack around the issue of visible_to checking flag_removed
		1069
		1070	adjust_weight (env, -total_weight ());
		1071
		1072	object *pl = in_player ();
		1073
		1074	/* we set up values so that it could be inserted into
		1075	* the map, but we don't actually do that - it is up
		1076	* to the caller to decide what we want to do.
		1077	*/
		1078	map = env->map;
		1079	x = env->x;
		1080	y = env->y;
		1081
		1082	// make sure cmov optimisation is applicable
		1083	*(above ? &above->below : &env->inv) = below;
		1084	*(below ? &below->above : &above ) = above; // &above is just a dummy
		1085
		1086	above = 0;
		1087	below = 0;
		1088	env = 0;
1045		1089
1046	/* NO_FIX_PLAYER is set when a great many changes are being	1090	/* NO_FIX_PLAYER is set when a great many changes are being
1047	* made to players inventory. If set, avoiding the call	1091	* made to players inventory. If set, avoiding the call
1048	* to save cpu time.	1092	* to save cpu time.
1049	*/	1093	*/
1050	if ((otmp = is_player_inv (op->env)) != NULL && otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))	1094	if (pl)
1051	fix_player (otmp);	1095	if (pl->is_player () && (glow_radius || !QUERY_FLAG (pl, FLAG_NO_FIX_PLAYER)))
		1096	{
		1097	pl->update_stats ();
1052		1098
1053	if (op->above != NULL)	1099	if (glow_radius && pl->is_on_map ())
1054	op->above->below = op->below;	1100	update_all_los (pl->map, pl->x, pl->y);
1055	else	1101	}
1056	op->env->inv = op->below;
1057
1058	if (op->below != NULL)
1059	op->below->above = op->above;
1060
1061	/* we set up values so that it could be inserted into
1062	* the map, but we don't actually do that - it is up
1063	* to the caller to decide what we want to do.
1064	*/
1065	op->x = op->env->x, op->y = op->env->y;
1066	op->map = op->env->map;
1067	op->above = NULL, op->below = NULL;
1068	op->env = NULL;
1069	}	1102	}
1070	else if (op->map)	1103	else if (map)
1071	{	1104	{
1072	x = op->x;	1105	map->dirty = true;
1073	y = op->y;	1106	mapspace &ms = this->ms ();
1074	m = get_map_from_coord (op->map, &x, &y);
1075		1107
1076	if (!m)	1108	if (object *pl = ms.player ())
1077	{	1109	{
1078	LOG (llevError, "remove_ob called when object was on map but appears to not be within valid coordinates? %s (%d,%d)\n",	1110	if (is_player ())
1079	op->map->path, op->x, op->y);
1080	/* in old days, we used to set x and y to 0 and continue.
1081	* it seems if we get into this case, something is probablye
1082	* screwed up and should be fixed.
1083	*/	1111	{
1084	abort ();	1112	if (!flag [FLAG_WIZPASS])
		1113	ms.smell = ++mapspace::smellcount; // remember the smell of the player
		1114
		1115	// leaving a spot always closes any open container on the ground
		1116	if (container && !container->env)
		1117	// this causes spurious floorbox updates, but it ensures
		1118	// that the CLOSE event is being sent.
		1119	close_container ();
		1120
		1121	--map->players;
		1122	map->touch ();
		1123	}
		1124	else if (pl->container_ () == this)
		1125	{
		1126	// removing a container should close it
		1127	close_container ();
		1128	}
		1129
		1130	esrv_del_item (pl->contr, count);
1085	}	1131	}
1086		1132
1087	if (op->map != m)
1088	LOG (llevDebug, "remove_ob: Object not really on map it claimed to be on? %s != %s, %d,%d != %d,%d\n",
1089	op->map->path, m->path, op->x, op->y, x, y);
1090
1091	/* Re did the following section of code - it looks like it had
1092	* lots of logic for things we no longer care about
1093	*/
1094
1095	/* link the object above us */	1133	/* link the object above us */
1096	if (op->above)	1134	// re-link, make sure compiler can easily use cmove
1097	op->above->below = op->below;	1135	*(above ? &above->below : &ms.top) = below;
1098	else	1136	*(below ? &below->above : &ms.bot) = above;
1099	SET_MAP_TOP (m, x, y, op->below); /* we were top, set new top */
1100		1137
1101	/* Relink the object below us, if there is one */	1138	above = 0;
1102	if (op->below)	1139	below = 0;
1103	op->below->above = op->above;	1140
1104	else	1141	ms.invalidate ();
		1142
		1143	if (map->in_memory == MAP_SAVING)
		1144	return;
		1145
		1146	int check_walk_off = !flag [FLAG_NO_APPLY];
		1147
		1148	if (object *pl = ms.player ())
1105	{	1149	{
1106	/* Nothing below, which means we need to relink map object for this space	1150	if (pl->container_ () == this)
1107	* use translated coordinates in case some oddness with map tiling is	1151	/* If a container that the player is currently using somehow gets
1108	* evident	1152	* removed (most likely destroyed), update the player view
		1153	* appropriately.
1109	*/	1154	*/
1110	if (GET_MAP_OB (m, x, y) != op)	1155	pl->close_container ();
1111	{
1112	char *dump = dump_object (op);
1113	LOG (llevError,
1114	"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);
1115	free (dump);
1116	dump = dump_object (GET_MAP_OB (m, x, y));
1117	LOG (llevError, "%s\n", dump);
1118	free (dump);
1119	}
1120		1156
1121	SET_MAP_OB (m, x, y, op->above); /* goes on above it. */	1157	//TODO: the floorbox prev/next might need updating
		1158	//esrv_del_item (pl->contr, count);
		1159	//TODO: update floorbox to preserve ordering
		1160	if (pl->contr->ns)
		1161	pl->contr->ns->floorbox_update ();
1122	}	1162	}
1123		1163
1124	op->above = 0;	1164	for (tmp = ms.bot; tmp; tmp = tmp->above)
1125	op->below = 0;
1126
1127	if (op->map->in_memory == MAP_SAVING)
1128	return;
1129
1130	check_walk_off = !QUERY_FLAG (op, FLAG_NO_APPLY);
1131
1132	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)
1133	{	1165	{
1134	/* No point updating the players look faces if he is the object	1166	/* No point updating the players look faces if he is the object
1135	* being removed.	1167	* being removed.
1136	*/	1168	*/
1137		1169
1138	if (tmp->type == PLAYER && tmp != op)	1170	/* See if object moving off should effect something */
		1171	if (check_walk_off
		1172	&& ((move_type & tmp->move_off)
		1173	&& (move_type & ~tmp->move_off & ~tmp->move_block) == 0))
1139	{	1174	{
1140	/* If a container that the player is currently using somehow gets
1141	* removed (most likely destroyed), update the player view
1142	* appropriately.
1143	*/
1144	if (tmp->container == op)
1145	{
1146	CLEAR_FLAG (op, FLAG_APPLIED);
1147	tmp->container = NULL;
1148	}
1149
1150	tmp->contr->socket.update_look = 1;
1151	}
1152
1153	/* See if player moving off should effect something */
1154	if (check_walk_off
1155	&& ((op->move_type & tmp->move_off)
1156	&& (op->move_type & ~tmp->move_off & ~tmp->move_block) == 0))
1157	{
1158	move_apply (tmp, op, NULL);	1175	move_apply (tmp, this, 0);
1159		1176
1160	if (op->destroyed ())	1177	if (destroyed ())
1161	LOG (llevError, "BUG: remove_ob(): name %s, destroyed leaving object\n", tmp->debug_desc ());	1178	LOG (llevError, "BUG: remove_ob(): name %s, destroyed leaving object\n", tmp->debug_desc ());
1162	}	1179	}
1163		1180
1164	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */
1165
1166	if (tmp->above == tmp)
1167	tmp->above = NULL;
1168
1169	last = tmp;	1181	last = tmp;
1170	}	1182	}
1171		1183
1172	/* last == NULL of there are no objects on this space */	1184	if (affects_los ())
1173	if (last == NULL)
1174	{
1175	/* set P_NEED_UPDATE, otherwise update_position will complain. In theory,
1176	* we could preserve the flags (GET_MAP_FLAGS), but update_position figures
1177	* those out anyways, and if there are any flags set right now, they won't
1178	* be correct anyways.
1179	*/
1180	SET_MAP_FLAGS (op->map, op->x, op->y, P_NEED_UPDATE);
1181	update_position (op->map, op->x, op->y);
1182	}
1183	else
1184	update_object (last, UP_OBJ_REMOVE);
1185
1186	if (QUERY_FLAG (op, FLAG_BLOCKSVIEW) || (op->glow_radius != 0))
1187	update_all_los (op->map, op->x, op->y);	1185	update_all_los (map, x, y);
1188	}	1186	}
1189	}	1187	}
1190		1188
1191	/*	1189	/*
1192	* merge_ob(op,top):	1190	* merge_ob(op,top):
…		…
1200	merge_ob (object *op, object *top)	1198	merge_ob (object *op, object *top)
1201	{	1199	{
1202	if (!op->nrof)	1200	if (!op->nrof)
1203	return 0;	1201	return 0;
1204		1202
1205	if (top == NULL)	1203	if (!top)
1206	for (top = op; top != NULL && top->above != NULL; top = top->above);	1204	for (top = op; top && top->above; top = top->above)
		1205	;
1207		1206
1208	for (; top != NULL; top = top->below)	1207	for (; top; top = top->below)
1209	{	1208	if (object::can_merge (op, top))
1210	if (top == op)
1211	continue;
1212	if (CAN_MERGE (op, top))
1213	{	1209	{
1214	top->nrof += op->nrof;	1210	top->nrof += op->nrof;
1215		1211
1216	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/	1212	if (object *pl = top->visible_to ())
1217	op->weight = 0; /* Don't want any adjustements now */	1213	esrv_update_item (UPD_NROF, pl, top);
1218	remove_ob (op);	1214
1219	free_object (op);	1215	op->weight = 0; // cancel the addition above
		1216	op->carrying = 0; // must be 0 already
		1217
		1218	op->destroy ();
		1219
1220	return top;	1220	return top;
1221	}	1221	}
1222	}
1223		1222
1224	return 0;	1223	return 0;
1225	}	1224	}
1226		1225
		1226	void
		1227	object::expand_tail ()
		1228	{
		1229	if (more)
		1230	return;
		1231
		1232	object *prev = this;
		1233
		1234	for (archetype *at = (archetype *)arch->more; at; at = (archetype *)at->more)
		1235	{
		1236	object *op = arch_to_object (at);
		1237
		1238	op->name = name;
		1239	op->name_pl = name_pl;
		1240	op->title = title;
		1241
		1242	op->head = this;
		1243	prev->more = op;
		1244
		1245	prev = op;
		1246	}
		1247	}
		1248
1227	/*	1249	/*
1228	* same as insert_ob_in_map except it handle separate coordinates and do a clean	1250	* same as insert_ob_in_map except it handles separate coordinates and does a clean
1229	* job preparing multi-part monsters	1251	* job preparing multi-part monsters.
1230	*/	1252	*/
1231	object *	1253	object *
1232	insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)	1254	insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)
1233	{	1255	{
1234	object *tmp;	1256	op->remove ();
1235		1257
1236	if (op->head)
1237	op = op->head;
1238
1239	for (tmp = op; tmp; tmp = tmp->more)	1258	for (object *tmp = op->head_ (); tmp; tmp = tmp->more)
1240	{	1259	{
1241	tmp->x = x + tmp->arch->clone.x;	1260	tmp->x = x + tmp->arch->x;
1242	tmp->y = y + tmp->arch->clone.y;	1261	tmp->y = y + tmp->arch->y;
1243	}	1262	}
1244		1263
1245	return insert_ob_in_map (op, m, originator, flag);	1264	return insert_ob_in_map (op, m, originator, flag);
1246	}	1265	}
1247		1266
…		…
1263	* Return value:	1282	* Return value:
1264	* new object if 'op' was merged with other object	1283	* new object if 'op' was merged with other object
1265	* NULL if 'op' was destroyed	1284	* NULL if 'op' was destroyed
1266	* just 'op' otherwise	1285	* just 'op' otherwise
1267	*/	1286	*/
1268
1269	object *	1287	object *
1270	insert_ob_in_map (object *op, maptile *m, object *originator, int flag)	1288	insert_ob_in_map (object *op, maptile *m, object *originator, int flag)
1271	{	1289	{
1272	object *tmp, *top, *floor = NULL;	1290	op->remove ();
1273	sint16 x, y;
1274		1291
1275	if (QUERY_FLAG (op, FLAG_FREED))	1292	if (m == &freed_map)//D TODO: remove soon
1276	{	1293	{//D
1277	LOG (llevError, "Trying to insert freed object!\n");	1294	LOG (llevError | logBacktrace, "tries to insret object on freed objects map: %s", op->debug_desc ());//D
1278	return NULL;
1279	}	1295	}//D
1280
1281	if (m == NULL)
1282	{
1283	char *dump = dump_object (op);
1284	LOG (llevError, "Trying to insert in null-map!\n%s\n", dump);
1285	free (dump);
1286	return op;
1287	}
1288
1289	if (out_of_map (m, op->x, op->y))
1290	{
1291	char *dump = dump_object (op);
1292	LOG (llevError, "Trying to insert object outside the map.\n%s\n", dump);
1293	#ifdef MANY_CORES
1294	/* Better to catch this here, as otherwise the next use of this object
1295	* is likely to cause a crash. Better to find out where it is getting
1296	* improperly inserted.
1297	*/
1298	abort ();
1299	#endif
1300	free (dump);
1301	return op;
1302	}
1303
1304	if (!QUERY_FLAG (op, FLAG_REMOVED))
1305	{
1306	char *dump = dump_object (op);
1307	LOG (llevError, "Trying to insert (map) inserted object.\n%s\n", dump);
1308	free (dump);
1309	return op;
1310	}
1311
1312	if (op->more != NULL)
1313	{
1314	/* The part may be on a different map. */
1315
1316	object *more = op->more;
1317
1318	/* We really need the caller to normalize coordinates - if
1319	* we set the map, that doesn't work if the location is within
1320	* a map and this is straddling an edge. So only if coordinate
1321	* is clear wrong do we normalize it.
1322	*/
1323	if (OUT_OF_REAL_MAP (more->map, more->x, more->y))
1324	more->map = get_map_from_coord (m, &more->x, &more->y);
1325	else if (!more->map)
1326	{
1327	/* For backwards compatibility - when not dealing with tiled maps,
1328	* more->map should always point to the parent.
1329	*/
1330	more->map = m;
1331	}
1332
1333	if (insert_ob_in_map (more, more->map, originator, flag) == NULL)
1334	{
1335	if (!op->head)
1336	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");
1337
1338	return NULL;
1339	}
1340	}
1341
1342	CLEAR_FLAG (op, FLAG_REMOVED);
1343		1296
1344	/* Ideally, the caller figures this out. However, it complicates a lot	1297	/* Ideally, the caller figures this out. However, it complicates a lot
1345	* of areas of callers (eg, anything that uses find_free_spot would now	1298	* of areas of callers (eg, anything that uses find_free_spot would now
1346	* need extra work	1299	* need extra work
1347	*/	1300	*/
1348	op->map = get_map_from_coord (m, &op->x, &op->y);	1301	maptile *newmap = m;
1349	x = op->x;	1302	if (!xy_normalise (newmap, op->x, op->y))
1350	y = op->y;	1303	{
		1304	op->head_ ()->destroy ();// remove head_ once all tail object destroyers found
		1305	return 0;
		1306	}
		1307
		1308	if (object *more = op->more)
		1309	if (!insert_ob_in_map (more, m, originator, flag))
		1310	return 0;
		1311
		1312	op->flag [FLAG_REMOVED] = false;
		1313	op->env = 0;
		1314	op->map = newmap;
		1315
		1316	mapspace &ms = op->ms ();
1351		1317
1352	/* this has to be done after we translate the coordinates.	1318	/* this has to be done after we translate the coordinates.
1353	*/	1319	*/
1354	if (op->nrof && !(flag & INS_NO_MERGE))	1320	if (op->nrof && !(flag & INS_NO_MERGE))
1355	for (tmp = GET_MAP_OB (op->map, x, y); tmp != NULL; tmp = tmp->above)	1321	for (object *tmp = ms.bot; tmp; tmp = tmp->above)
1356	if (CAN_MERGE (op, tmp))	1322	if (object::can_merge (op, tmp))
1357	{	1323	{
		1324	// TODO: we actually want to update tmp, not op,
		1325	// but some caller surely breaks when we return tmp
		1326	// from here :/
1358	op->nrof += tmp->nrof;	1327	op->nrof += tmp->nrof;
1359	remove_ob (tmp);	1328	tmp->destroy ();
1360	free_object (tmp);
1361	}	1329	}
1362		1330
1363	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */	1331	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */
1364	CLEAR_FLAG (op, FLAG_INV_LOCKED);	1332	CLEAR_FLAG (op, FLAG_INV_LOCKED);
1365		1333
…		…
1372	{	1340	{
1373	LOG (llevError, "insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");	1341	LOG (llevError, "insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");
1374	abort ();	1342	abort ();
1375	}	1343	}
1376		1344
		1345	if (!originator->is_on_map ())
		1346	{
		1347	LOG (llevError, "insert_ob_in_map(%s) called with INS_BELOW_ORIGINATOR when originator '%s' not on map",
		1348	op->debug_desc (), originator->debug_desc ());
		1349	abort ();
		1350	}
		1351
1377	op->above = originator;	1352	op->above = originator;
1378	op->below = originator->below;	1353	op->below = originator->below;
1379
1380	if (op->below)
1381	op->below->above = op;
1382	else
1383	SET_MAP_OB (op->map, op->x, op->y, op);
1384
1385	/* since *below* originator, no need to update top */
1386	originator->below = op;	1354	originator->below = op;
		1355
		1356	*(op->below ? &op->below->above : &ms.bot) = op;
1387	}	1357	}
1388	else	1358	else
1389	{	1359	{
		1360	object *floor = 0;
		1361	object *top = ms.top;
		1362
1390	/* If there are other objects, then */	1363	/* If there are other objects, then */
1391	if ((!(flag & INS_MAP_LOAD)) && ((top = GET_MAP_OB (op->map, op->x, op->y)) != NULL))	1364	if (top)
1392	{	1365	{
1393	object *last = NULL;
1394
1395	/*	1366	/*
1396	* If there are multiple objects on this space, we do some trickier handling.	1367	* If there are multiple objects on this space, we do some trickier handling.
1397	* We've already dealt with merging if appropriate.	1368	* We've already dealt with merging if appropriate.
1398	* Generally, we want to put the new object on top. But if	1369	* Generally, we want to put the new object on top. But if
1399	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last	1370	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last
…		…
1402	* once we get to them. This reduces the need to traverse over all of	1373	* once we get to them. This reduces the need to traverse over all of
1403	* them when adding another one - this saves quite a bit of cpu time	1374	* them when adding another one - this saves quite a bit of cpu time
1404	* when lots of spells are cast in one area. Currently, it is presumed	1375	* when lots of spells are cast in one area. Currently, it is presumed
1405	* that flying non pickable objects are spell objects.	1376	* that flying non pickable objects are spell objects.
1406	*/	1377	*/
1407		1378	for (object *tmp = ms.bot; tmp; tmp = tmp->above)
1408	while (top != NULL)
1409	{	1379	{
1410	if (QUERY_FLAG (top, FLAG_IS_FLOOR) || QUERY_FLAG (top, FLAG_OVERLAY_FLOOR))	1380	if (QUERY_FLAG (tmp, FLAG_IS_FLOOR) || QUERY_FLAG (tmp, FLAG_OVERLAY_FLOOR))
1411	floor = top;	1381	floor = tmp;
1412		1382
1413	if (QUERY_FLAG (top, FLAG_NO_PICK) && (top->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (top, FLAG_IS_FLOOR))	1383	if (QUERY_FLAG (tmp, FLAG_NO_PICK) && (tmp->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (tmp, FLAG_IS_FLOOR))
1414	{	1384	{
1415	/* We insert above top, so we want this object below this */	1385	/* We insert above top, so we want this object below this */
1416	top = top->below;	1386	top = tmp->below;
1417	break;	1387	break;
1418	}	1388	}
1419		1389
1420	last = top;
1421	top = top->above;	1390	top = tmp;
1422	}	1391	}
1423
1424	/* Don't want top to be NULL, so set it to the last valid object */
1425	top = last;
1426		1392
1427	/* We let update_position deal with figuring out what the space	1393	/* We let update_position deal with figuring out what the space
1428	* looks like instead of lots of conditions here.	1394	* looks like instead of lots of conditions here.
1429	* makes things faster, and effectively the same result.	1395	* makes things faster, and effectively the same result.
1430	*/	1396	*/
1431		1397
1432	/* Have object 'fall below' other objects that block view.	1398	/* Have object 'fall below' other objects that block view.
1433	* Unless those objects are exits, type 66	1399	* Unless those objects are exits.
1434	* If INS_ON_TOP is used, don't do this processing	1400	* If INS_ON_TOP is used, don't do this processing
1435	* Need to find the object that in fact blocks view, otherwise	1401	* Need to find the object that in fact blocks view, otherwise
1436	* stacking is a bit odd.	1402	* stacking is a bit odd.
1437	*/	1403	*/
1438	if (!(flag & INS_ON_TOP) &&	1404	if (!(flag & INS_ON_TOP)
1439	(get_map_flags (op->map, NULL, op->x, op->y, NULL, NULL) & P_BLOCKSVIEW) && (op->face && !op->face->visibility))	1405	&& ms.flags () & P_BLOCKSVIEW
		1406	&& (op->face && !faces [op->face].visibility))
1440	{	1407	{
		1408	object *last;
		1409
1441	for (last = top; last != floor; last = last->below)	1410	for (last = top; last != floor; last = last->below)
1442	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))	1411	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))
1443	break;	1412	break;
		1413
1444	/* Check to see if we found the object that blocks view,	1414	/* Check to see if we found the object that blocks view,
1445	* and make sure we have a below pointer for it so that	1415	* and make sure we have a below pointer for it so that
1446	* we can get inserted below this one, which requires we	1416	* we can get inserted below this one, which requires we
1447	* set top to the object below us.	1417	* set top to the object below us.
1448	*/	1418	*/
1449	if (last && last->below && last != floor)	1419	if (last && last->below && last != floor)
1450	top = last->below;	1420	top = last->below;
1451	}	1421	}
1452	} /* If objects on this space */	1422	} /* If objects on this space */
1453		1423
1454	if (flag & INS_MAP_LOAD)
1455	top = GET_MAP_TOP (op->map, op->x, op->y);
1456
1457	if (flag & INS_ABOVE_FLOOR_ONLY)	1424	if (flag & INS_ABOVE_FLOOR_ONLY)
1458	top = floor;	1425	top = floor;
1459		1426
1460	/* Top is the object that our object (op) is going to get inserted above.	1427	// insert object above top, or bottom-most if top = 0
1461	*/
1462
1463	/* First object on this space */
1464	if (!top)	1428	if (!top)
1465	{	1429	{
1466	op->above = GET_MAP_OB (op->map, op->x, op->y);
1467
1468	if (op->above)
1469	op->above->below = op;
1470
1471	op->below = NULL;	1430	op->below = 0;
1472	SET_MAP_OB (op->map, op->x, op->y, op);	1431	op->above = ms.bot;
		1432	ms.bot = op;
		1433
		1434	*(op->above ? &op->above->below : &ms.top) = op;
1473	}	1435	}
1474	else	1436	else
1475	{ /* get inserted into the stack above top */	1437	{
1476	op->above = top->above;	1438	op->above = top->above;
1477
1478	if (op->above)
1479	op->above->below = op;	1439	top->above = op;
1480		1440
1481	op->below = top;	1441	op->below = top;
1482	top->above = op;	1442	*(op->above ? &op->above->below : &ms.top) = op;
1483	}	1443	}
		1444	}
1484		1445
1485	if (op->above == NULL)	1446	if (op->is_player ())
1486	SET_MAP_TOP (op->map, op->x, op->y, op);	1447	{
1487	} /* else not INS_BELOW_ORIGINATOR */
1488
1489	if (op->type == PLAYER)
1490	op->contr->do_los = 1;	1448	op->contr->do_los = 1;
		1449	++op->map->players;
		1450	op->map->touch ();
		1451	}
1491		1452
1492	/* If we have a floor, we know the player, if any, will be above	1453	op->map->dirty = true;
1493	* it, so save a few ticks and start from there.	1454
1494	*/	1455	if (object *pl = ms.player ())
1495	if (!(flag & INS_MAP_LOAD))	1456	//TODO: the floorbox prev/next might need updating
1496	for (tmp = floor ? floor : GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)	1457	//esrv_send_item (pl, op);
1497	if (tmp->type == PLAYER)	1458	//TODO: update floorbox to preserve ordering
1498	tmp->contr->socket.update_look = 1;	1459	if (pl->contr->ns)
		1460	pl->contr->ns->floorbox_update ();
1499		1461
1500	/* If this object glows, it may affect lighting conditions that are	1462	/* If this object glows, it may affect lighting conditions that are
1501	* visible to others on this map. But update_all_los is really	1463	* visible to others on this map. But update_all_los is really
1502	* an inefficient way to do this, as it means los for all players	1464	* an inefficient way to do this, as it means los for all players
1503	* on the map will get recalculated. The players could very well	1465	* on the map will get recalculated. The players could very well
1504	* be far away from this change and not affected in any way -	1466	* be far away from this change and not affected in any way -
1505	* this should get redone to only look for players within range,	1467	* this should get redone to only look for players within range,
1506	* or just updating the P_NEED_UPDATE for spaces within this area	1468	* or just updating the P_UPTODATE for spaces within this area
1507	* of effect may be sufficient.	1469	* of effect may be sufficient.
1508	*/	1470	*/
1509	if (MAP_DARKNESS (op->map) && (op->glow_radius != 0))	1471	if (op->affects_los ())
		1472	{
		1473	op->ms ().invalidate ();
1510	update_all_los (op->map, op->x, op->y);	1474	update_all_los (op->map, op->x, op->y);
		1475	}
1511		1476
1512	/* updates flags (blocked, alive, no magic, etc) for this map space */	1477	/* updates flags (blocked, alive, no magic, etc) for this map space */
1513	update_object (op, UP_OBJ_INSERT);	1478	update_object (op, UP_OBJ_INSERT);
1514		1479
		1480	INVOKE_OBJECT (INSERT, op);
		1481
1515	/* Don't know if moving this to the end will break anything. However,	1482	/* Don't know if moving this to the end will break anything. However,
1516	* we want to have update_look set above before calling this.	1483	* we want to have floorbox_update called before calling this.
1517	*	1484	*
1518	* check_move_on() must be after this because code called from	1485	* check_move_on() must be after this because code called from
1519	* check_move_on() depends on correct map flags (so functions like	1486	* check_move_on() depends on correct map flags (so functions like
1520	* blocked() and wall() work properly), and these flags are updated by	1487	* blocked() and wall() work properly), and these flags are updated by
1521	* update_object().	1488	* update_object().
1522	*/	1489	*/
1523		1490
1524	/* if this is not the head or flag has been passed, don't check walk on status */	1491	/* if this is not the head or flag has been passed, don't check walk on status */
1525	if (!(flag & INS_NO_WALK_ON) && !op->head)	1492	if (!(flag & INS_NO_WALK_ON) && op->is_head ())
1526	{	1493	{
1527	if (check_move_on (op, originator))	1494	if (check_move_on (op, originator))
1528	return NULL;	1495	return 0;
1529		1496
1530	/* If we are a multi part object, lets work our way through the check	1497	/* If we are a multi part object, lets work our way through the check
1531	* walk on's.	1498	* walk on's.
1532	*/	1499	*/
1533	for (tmp = op->more; tmp != NULL; tmp = tmp->more)	1500	for (object *tmp = op->more; tmp; tmp = tmp->more)
1534	if (check_move_on (tmp, originator))	1501	if (check_move_on (tmp, originator))
1535	return NULL;	1502	return 0;
1536	}	1503	}
1537		1504
1538	return op;	1505	return op;
1539	}	1506	}
1540		1507
1541	/* this function inserts an object in the map, but if it	1508	/* this function inserts an object in the map, but if it
1542	* finds an object of its own type, it'll remove that one first.	1509	* finds an object of its own type, it'll remove that one first.
1543	* op is the object to insert it under: supplies x and the map.	1510	* op is the object to insert it under: supplies x and the map.
1544	*/	1511	*/
1545	void	1512	void
1546	replace_insert_ob_in_map (const char *arch_string, object *op)	1513	replace_insert_ob_in_map (shstr_tmp archname, object *op)
1547	{	1514	{
1548	object *
1549	tmp;
1550	object *
1551	tmp1;
1552
1553	/* first search for itself and remove any old instances */	1515	/* first search for itself and remove any old instances */
1554		1516
1555	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)	1517	for (object *tmp = op->ms ().bot; tmp; tmp = tmp->above)
1556	{
1557	if (!strcmp (tmp->arch->name, arch_string)) /* same archetype */	1518	if (tmp->arch->archname == archname) /* same archetype */
1558	{	1519	tmp->destroy ();
1559	remove_ob (tmp);
1560	free_object (tmp);
1561	}
1562	}
1563		1520
1564	tmp1 = arch_to_object (archetype::find (arch_string));	1521	object *tmp = arch_to_object (archetype::find (archname));
1565		1522
1566	tmp1->x = op->x;	1523	tmp->x = op->x;
1567	tmp1->y = op->y;	1524	tmp->y = op->y;
		1525
1568	insert_ob_in_map (tmp1, op->map, op, 0);	1526	insert_ob_in_map (tmp, op->map, op, 0);
1569	}	1527	}
1570
1571	/*
1572	* get_split_ob(ob,nr) splits up ob into two parts. The part which
1573	* is returned contains nr objects, and the remaining parts contains
1574	* the rest (or is removed and freed if that number is 0).
1575	* On failure, NULL is returned, and the reason put into the
1576	* global static errmsg array.
1577	*/
1578		1528
1579	object *	1529	object *
1580	get_split_ob (object *orig_ob, uint32 nr)	1530	object::insert_at (object *where, object *originator, int flags)
1581	{	1531	{
1582	object *	1532	if (where->env)
1583	newob;	1533	return where->env->insert (this);
1584	int	1534	else
1585	is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);	1535	return where->map->insert (this, where->x, where->y, originator, flags);
1586
1587	if (orig_ob->nrof < nr)
1588	{
1589	sprintf (errmsg, "There are only %d %ss.", orig_ob->nrof ? orig_ob->nrof : 1, &orig_ob->name);
1590	return NULL;
1591	}
1592
1593	newob = object_create_clone (orig_ob);
1594
1595	if ((orig_ob->nrof -= nr) < 1)
1596	{
1597	if (!is_removed)
1598	remove_ob (orig_ob);
1599	free_object2 (orig_ob, 1);
1600	}
1601	else if (!is_removed)
1602	{
1603	if (orig_ob->env != NULL)
1604	sub_weight (orig_ob->env, orig_ob->weight * nr);
1605	if (orig_ob->env == NULL && orig_ob->map->in_memory != MAP_IN_MEMORY)
1606	{
1607	strcpy (errmsg, "Tried to split object whose map is not in memory.");
1608	LOG (llevDebug, "Error, Tried to split object whose map is not in memory.\n");
1609	return NULL;
1610	}
1611	}
1612
1613	newob->nrof = nr;
1614
1615	return newob;
1616	}	1536	}
1617		1537
1618	/*	1538	/*
1619	* decrease_ob_nr(object, number) decreases a specified number from	1539	* decrease(object, number) decreases a specified number from
1620	* the amount of an object. If the amount reaches 0, the object	1540	* the amount of an object. If the amount reaches 0, the object
1621	* is subsequently removed and freed.	1541	* is subsequently removed and freed.
1622	*	1542	*
1623	* Return value: 'op' if something is left, NULL if the amount reached 0	1543	* Return value: 'op' if something is left, NULL if the amount reached 0
1624	*/	1544	*/
		1545	bool
		1546	object::decrease (sint32 nr)
		1547	{
		1548	if (!nr)
		1549	return true;
1625		1550
		1551	nr = min (nr, nrof);
		1552
		1553	if (nrof > nr)
		1554	{
		1555	nrof -= nr;
		1556	adjust_weight (env, -weight * max (1, nr)); // carrying == 0
		1557
		1558	if (object *pl = visible_to ())
		1559	esrv_update_item (UPD_NROF, pl, this);
		1560
		1561	return true;
		1562	}
		1563	else
		1564	{
		1565	destroy ();
		1566	return false;
		1567	}
		1568	}
		1569
		1570	/*
		1571	* split(ob,nr) splits up ob into two parts. The part which
		1572	* is returned contains nr objects, and the remaining parts contains
		1573	* the rest (or is removed and returned if that number is 0).
		1574	* On failure, NULL is returned.
		1575	*/
1626	object *	1576	object *
1627	decrease_ob_nr (object *op, uint32 i)	1577	object::split (sint32 nr)
1628	{	1578	{
1629	object *tmp;	1579	int have = number_of ();
1630	player *pl;
1631		1580
1632	if (i == 0) /* objects with op->nrof require this check */	1581	if (have < nr)
1633	return op;	1582	return 0;
1634		1583	else if (have == nr)
1635	if (i > op->nrof)
1636	i = op->nrof;
1637
1638	if (QUERY_FLAG (op, FLAG_REMOVED))
1639	op->nrof -= i;
1640	else if (op->env != NULL)
1641	{	1584	{
1642	/* is this object in the players inventory, or sub container
1643	* therein?
1644	*/
1645	tmp = is_player_inv (op->env);
1646	/* nope. Is this a container the player has opened?
1647	* If so, set tmp to that player.
1648	* IMO, searching through all the players will mostly
1649	* likely be quicker than following op->env to the map,
1650	* and then searching the map for a player.
1651	*/
1652	if (!tmp)
1653	{
1654	for (pl = first_player; pl; pl = pl->next)
1655	if (pl->ob->container == op->env)
1656	break;
1657	if (pl)
1658	tmp = pl->ob;
1659	else
1660	tmp = NULL;
1661	}
1662
1663	if (i < op->nrof)
1664	{
1665	sub_weight (op->env, op->weight * i);
1666	op->nrof -= i;
1667	if (tmp)
1668	{
1669	esrv_send_item (tmp, op);
1670	}
1671	}
1672	else
1673	{
1674	remove_ob (op);	1585	remove ();
1675	op->nrof = 0;	1586	return this;
1676	if (tmp)
1677	{
1678	esrv_del_item (tmp->contr, op->count);
1679	}
1680	}
1681	}	1587	}
1682	else	1588	else
1683	{	1589	{
1684	object *above = op->above;	1590	decrease (nr);
1685		1591
1686	if (i < op->nrof)	1592	object *op = deep_clone ();
1687	op->nrof -= i;	1593	op->nrof = nr;
1688	else
1689	{
1690	remove_ob (op);
1691	op->nrof = 0;
1692	}
1693
1694	/* Since we just removed op, op->above is null */
1695	for (tmp = above; tmp != NULL; tmp = tmp->above)
1696	if (tmp->type == PLAYER)
1697	{
1698	if (op->nrof)
1699	esrv_send_item (tmp, op);
1700	else
1701	esrv_del_item (tmp->contr, op->count);
1702	}
1703	}
1704
1705	if (op->nrof)
1706	return op;	1594	return op;
1707	else
1708	{	1595	}
1709	free_object (op);
1710	return NULL;
1711	}
1712	}	1596	}
1713
1714	/*
1715	* add_weight(object, weight) adds the specified weight to an object,
1716	* and also updates how much the environment(s) is/are carrying.
1717	*/
1718
1719	void
1720	add_weight (object *op, signed long weight)
1721	{
1722	while (op != NULL)
1723	{
1724	if (op->type == CONTAINER)
1725	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1726
1727	op->carrying += weight;
1728	op = op->env;
1729	}
1730	}
1731
1732	/*
1733	* insert_ob_in_ob(op,environment):
1734	* This function inserts the object op in the linked list
1735	* inside the object environment.
1736	*
1737	* Eneq(@csd.uu.se): Altered insert_ob_in_ob to make things picked up enter
1738	* the inventory at the last position or next to other objects of the same
1739	* type.
1740	* Frank: Now sorted by type, archetype and magic!
1741	*
1742	* The function returns now pointer to inserted item, and return value can
1743	* be != op, if items are merged. -Tero
1744	*/
1745		1597
1746	object *	1598	object *
1747	insert_ob_in_ob (object *op, object *where)	1599	insert_ob_in_ob (object *op, object *where)
1748	{	1600	{
1749	object *	1601	if (!where)
1750	tmp, *
1751	otmp;
1752
1753	if (!QUERY_FLAG (op, FLAG_REMOVED))
1754	{
1755	char *dump = dump_object (op);
1756	LOG (llevError, "Trying to insert (ob) inserted object.\n%s\n", dump);
1757	free (dump);
1758	return op;
1759	}
1760
1761	if (where == NULL)
1762	{	1602	{
1763	char *dump = dump_object (op);	1603	char *dump = dump_object (op);
1764	LOG (llevError, "Trying to put object in NULL.\n%s\n", dump);	1604	LOG (llevError, "Trying to put object in NULL.\n%s\n", dump);
1765	free (dump);	1605	free (dump);
1766	return op;	1606	return op;
1767	}	1607	}
1768		1608
1769	if (where->head)	1609	if (where->head_ () != where)
1770	{	1610	{
1771	LOG (llevDebug, "Warning: Tried to insert object wrong part of multipart object.\n");	1611	LOG (llevError | logBacktrace, "Warning: Tried to insert object into wrong part of multipart object.\n");
1772	where = where->head;	1612	where = where->head;
1773	}	1613	}
1774		1614
		1615	return where->insert (op);
		1616	}
		1617
		1618	/*
		1619	* env->insert (op)
		1620	* This function inserts the object op in the linked list
		1621	* inside the object environment.
		1622	*
		1623	* The function returns now pointer to inserted item, and return value can
		1624	* be != op, if items are merged. -Tero
		1625	*/
		1626	object *
		1627	object::insert (object *op)
		1628	{
1775	if (op->more)	1629	if (op->more)
1776	{	1630	{
1777	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);	1631	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);
1778	return op;	1632	return op;
1779	}	1633	}
1780		1634
1781	CLEAR_FLAG (op, FLAG_OBJ_ORIGINAL);	1635	op->remove ();
1782	CLEAR_FLAG (op, FLAG_REMOVED);	1636
		1637	op->flag [FLAG_OBJ_ORIGINAL] = 0;
		1638
1783	if (op->nrof)	1639	if (op->nrof)
1784	{
1785	for (tmp = where->inv; tmp != NULL; tmp = tmp->below)	1640	for (object *tmp = inv; tmp; tmp = tmp->below)
1786	if (CAN_MERGE (tmp, op))	1641	if (object::can_merge (tmp, op))
1787	{	1642	{
1788	/* return the original object and remove inserted object	1643	/* return the original object and remove inserted object
1789	(client needs the original object) */	1644	(client needs the original object) */
1790	tmp->nrof += op->nrof;	1645	tmp->nrof += op->nrof;
1791	/* Weight handling gets pretty funky. Since we are adding to	1646
1792	* tmp->nrof, we need to increase the weight.	1647	if (object *pl = tmp->visible_to ())
1793	*/	1648	esrv_update_item (UPD_NROF, pl, tmp);
1794	add_weight (where, op->weight * op->nrof);	1649
1795	SET_FLAG (op, FLAG_REMOVED);	1650	adjust_weight (this, op->total_weight ());
1796	free_object (op); /* free the inserted object */	1651
		1652	op->destroy ();
1797	op = tmp;	1653	op = tmp;
1798	remove_ob (op); /* and fix old object's links */	1654	goto inserted;
1799	CLEAR_FLAG (op, FLAG_REMOVED);
1800	break;
1801	}	1655	}
1802		1656
1803	/* I assume combined objects have no inventory	1657	op->owner = 0; // it's his/hers now. period.
1804	* We add the weight - this object could have just been removed
1805	* (if it was possible to merge). calling remove_ob will subtract
1806	* the weight, so we need to add it in again, since we actually do
1807	* the linking below
1808	*/
1809	add_weight (where, op->weight * op->nrof);
1810	}
1811	else
1812	add_weight (where, (op->weight + op->carrying));
1813
1814	otmp = is_player_inv (where);
1815	if (otmp && otmp->contr != NULL)
1816	{
1817	if (!QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1818	fix_player (otmp);
1819	}
1820
1821	op->map = NULL;	1658	op->map = 0;
1822	op->env = where;	1659	op->x = 0;
		1660	op->y = 0;
		1661
1823	op->above = NULL;	1662	op->above = 0;
1824	op->below = NULL;	1663	op->below = inv;
1825	op->x = 0, op->y = 0;	1664	op->env = this;
1826		1665
		1666	if (inv)
		1667	inv->above = op;
		1668
		1669	inv = op;
		1670
		1671	op->flag [FLAG_REMOVED] = 0;
		1672
		1673	if (object *pl = op->visible_to ())
		1674	esrv_send_item (pl, op);
		1675
		1676	adjust_weight (this, op->total_weight ());
		1677
		1678	inserted:
1827	/* reset the light list and los of the players on the map */	1679	/* reset the light list and los of the players on the map */
1828	if ((op->glow_radius != 0) && where->map)	1680	if (op->glow_radius && is_on_map ())
1829	{
1830	#ifdef DEBUG_LIGHTS
1831	LOG (llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n", op->name);
1832	#endif /* DEBUG_LIGHTS */
1833	if (MAP_DARKNESS (where->map))
1834	update_all_los (where->map, where->x, where->y);
1835	}	1681	{
1836		1682	update_stats ();
1837	/* Client has no idea of ordering so lets not bother ordering it here.	1683	update_all_los (map, x, y);
1838	* It sure simplifies this function...
1839	*/
1840	if (where->inv == NULL)
1841	where->inv = op;
1842	else
1843	{	1684	}
1844	op->below = where->inv;	1685	else if (is_player () && !flag [FLAG_NO_FIX_PLAYER])
1845	op->below->above = op;	1686	// if this is a player's inventory, update stats
1846	where->inv = op;	1687	update_stats ();
1847	}	1688
		1689	INVOKE_OBJECT (INSERT, this);
		1690
1848	return op;	1691	return op;
1849	}	1692	}
1850		1693
1851	/*	1694	/*
1852	* Checks if any objects has a move_type that matches objects	1695	* Checks if any objects has a move_type that matches objects
…		…
1866	*	1709	*
1867	* MSW 2001-07-08: Check all objects on space, not just those below	1710	* MSW 2001-07-08: Check all objects on space, not just those below
1868	* object being inserted. insert_ob_in_map may not put new objects	1711	* object being inserted. insert_ob_in_map may not put new objects
1869	* on top.	1712	* on top.
1870	*/	1713	*/
1871
1872	int	1714	int
1873	check_move_on (object *op, object *originator)	1715	check_move_on (object *op, object *originator)
1874	{	1716	{
		1717	if (QUERY_FLAG (op, FLAG_NO_APPLY))
		1718	return 0;
		1719
1875	object *tmp;	1720	object *tmp;
1876	maptile *m = op->map;	1721	maptile *m = op->map;
1877	int x = op->x, y = op->y;	1722	int x = op->x, y = op->y;
1878		1723
1879	MoveType move_on, move_slow, move_block;	1724	mapspace &ms = m->at (x, y);
1880		1725
1881	if (QUERY_FLAG (op, FLAG_NO_APPLY))	1726	ms.update ();
1882	return 0;
1883		1727
1884	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);	1728	MoveType move_on = ms.move_on;
1885	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);	1729	MoveType move_slow = ms.move_slow;
1886	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);	1730	MoveType move_block = ms.move_block;
1887		1731
1888	/* if nothing on this space will slow op down or be applied,	1732	/* if nothing on this space will slow op down or be applied,
1889	* no need to do checking below. have to make sure move_type	1733	* no need to do checking below. have to make sure move_type
1890	* is set, as lots of objects don't have it set - we treat that	1734	* is set, as lots of objects don't have it set - we treat that
1891	* as walking.	1735	* as walking.
…		…
1902	return 0;	1746	return 0;
1903		1747
1904	/* The objects have to be checked from top to bottom.	1748	/* The objects have to be checked from top to bottom.
1905	* Hence, we first go to the top:	1749	* Hence, we first go to the top:
1906	*/	1750	*/
1907		1751	for (object *next, *tmp = ms.top; tmp; tmp = next)
1908	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL && tmp->above != NULL; tmp = tmp->above)
1909	{
1910	/* Trim the search when we find the first other spell effect
1911	* this helps performance so that if a space has 50 spell objects,
1912	* we don't need to check all of them.
1913	*/
1914	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG (tmp, FLAG_NO_PICK))
1915	break;
1916	}	1752	{
		1753	next = tmp->below;
1917		1754
1918	for (; tmp; tmp = tmp->below)
1919	{
1920	if (tmp == op)	1755	if (tmp == op)
1921	continue; /* Can't apply yourself */	1756	continue; /* Can't apply yourself */
1922		1757
1923	/* Check to see if one of the movement types should be slowed down.	1758	/* Check to see if one of the movement types should be slowed down.
1924	* Second check makes sure that the movement types not being slowed	1759	* Second check makes sure that the movement types not being slowed
…		…
1929	if (!QUERY_FLAG (op, FLAG_WIZPASS))	1764	if (!QUERY_FLAG (op, FLAG_WIZPASS))
1930	{	1765	{
1931	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||	1766	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||
1932	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))	1767	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))
1933	{	1768	{
1934
1935	float
1936	diff = tmp->move_slow_penalty * FABS (op->speed);	1769	float diff = tmp->move_slow_penalty * fabs (op->speed);
1937		1770
1938	if (op->type == PLAYER)	1771	if (op->is_player ())
1939	if ((QUERY_FLAG (tmp, FLAG_IS_HILLY) && find_skill_by_number (op, SK_CLIMBING)) ||	1772	if ((tmp->flag [FLAG_IS_HILLY ] && find_skill_by_number (op, SK_CLIMBING)) ||
1940	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))	1773	(tmp->flag [FLAG_IS_WOODED] && find_skill_by_number (op, SK_WOODSMAN)))
1941	diff /= 4.0;	1774	diff /= 4.0;
1942		1775
1943	op->speed_left -= diff;	1776	op->speed_left -= diff;
1944	}	1777	}
1945	}	1778	}
…		…
1968	/*	1801	/*
1969	* present_arch(arch, map, x, y) searches for any objects with	1802	* present_arch(arch, map, x, y) searches for any objects with
1970	* a matching archetype at the given map and coordinates.	1803	* a matching archetype at the given map and coordinates.
1971	* The first matching object is returned, or NULL if none.	1804	* The first matching object is returned, or NULL if none.
1972	*/	1805	*/
1973
1974	object *	1806	object *
1975	present_arch (const archetype *at, maptile *m, int x, int y)	1807	present_arch (const archetype *at, maptile *m, int x, int y)
1976	{	1808	{
1977	object *
1978	tmp;
1979
1980	if (m == NULL || out_of_map (m, x, y))	1809	if (!m || out_of_map (m, x, y))
1981	{	1810	{
1982	LOG (llevError, "Present_arch called outside map.\n");	1811	LOG (llevError, "Present_arch called outside map.\n");
1983	return NULL;	1812	return NULL;
1984	}	1813	}
1985	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)	1814
1986	if (tmp->arch == at)	1815	for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)
		1816	if (tmp->arch->archname == at->archname)
1987	return tmp;	1817	return tmp;
		1818
1988	return NULL;	1819	return NULL;
1989	}	1820	}
1990		1821
1991	/*	1822	/*
1992	* present(type, map, x, y) searches for any objects with	1823	* present(type, map, x, y) searches for any objects with
1993	* a matching type variable at the given map and coordinates.	1824	* a matching type variable at the given map and coordinates.
1994	* The first matching object is returned, or NULL if none.	1825	* The first matching object is returned, or NULL if none.
1995	*/	1826	*/
1996
1997	object *	1827	object *
1998	present (unsigned char type, maptile *m, int x, int y)	1828	present (unsigned char type, maptile *m, int x, int y)
1999	{	1829	{
2000	object *
2001	tmp;
2002
2003	if (out_of_map (m, x, y))	1830	if (out_of_map (m, x, y))
2004	{	1831	{
2005	LOG (llevError, "Present called outside map.\n");	1832	LOG (llevError, "Present called outside map.\n");
2006	return NULL;	1833	return NULL;
2007	}	1834	}
2008	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)	1835
		1836	for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)
2009	if (tmp->type == type)	1837	if (tmp->type == type)
2010	return tmp;	1838	return tmp;
		1839
2011	return NULL;	1840	return NULL;
2012	}	1841	}
2013		1842
2014	/*	1843	/*
2015	* present_in_ob(type, object) searches for any objects with	1844	* present_in_ob(type, object) searches for any objects with
2016	* a matching type variable in the inventory of the given object.	1845	* a matching type variable in the inventory of the given object.
2017	* The first matching object is returned, or NULL if none.	1846	* The first matching object is returned, or NULL if none.
2018	*/	1847	*/
2019
2020	object *	1848	object *
2021	present_in_ob (unsigned char type, const object *op)	1849	present_in_ob (unsigned char type, const object *op)
2022	{	1850	{
2023	object *
2024	tmp;
2025
2026	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1851	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
2027	if (tmp->type == type)	1852	if (tmp->type == type)
2028	return tmp;	1853	return tmp;
		1854
2029	return NULL;	1855	return NULL;
2030	}	1856	}
2031		1857
2032	/*	1858	/*
2033	* present_in_ob (type, str, object) searches for any objects with	1859	* present_in_ob (type, str, object) searches for any objects with
…		…
2041	* str is the string to match against. Note that we match against	1867	* str is the string to match against. Note that we match against
2042	* the object name, not the archetype name. this is so that the	1868	* the object name, not the archetype name. this is so that the
2043	* spell code can use one object type (force), but change it's name	1869	* spell code can use one object type (force), but change it's name
2044	* to be unique.	1870	* to be unique.
2045	*/	1871	*/
2046
2047	object *	1872	object *
2048	present_in_ob_by_name (int type, const char *str, const object *op)	1873	present_in_ob_by_name (int type, const char *str, const object *op)
2049	{	1874	{
2050	object *
2051	tmp;
2052
2053	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1875	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2054	{
2055	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))	1876	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))
2056	return tmp;	1877	return tmp;
2057	}	1878
2058	return NULL;	1879	return 0;
2059	}	1880	}
2060		1881
2061	/*	1882	/*
2062	* present_arch_in_ob(archetype, object) searches for any objects with	1883	* present_arch_in_ob(archetype, object) searches for any objects with
2063	* a matching archetype in the inventory of the given object.	1884	* a matching archetype in the inventory of the given object.
2064	* The first matching object is returned, or NULL if none.	1885	* The first matching object is returned, or NULL if none.
2065	*/	1886	*/
2066
2067	object *	1887	object *
2068	present_arch_in_ob (const archetype *at, const object *op)	1888	present_arch_in_ob (const archetype *at, const object *op)
2069	{	1889	{
2070	object *
2071	tmp;
2072
2073	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1890	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2074	if (tmp->arch == at)	1891	if (tmp->arch->archname == at->archname)
2075	return tmp;	1892	return tmp;
		1893
2076	return NULL;	1894	return NULL;
2077	}	1895	}
2078		1896
2079	/*	1897	/*
2080	* activate recursively a flag on an object inventory	1898	* activate recursively a flag on an object inventory
2081	*/	1899	*/
2082	void	1900	void
2083	flag_inv (object *op, int flag)	1901	flag_inv (object *op, int flag)
2084	{	1902	{
2085	object *
2086	tmp;
2087
2088	if (op->inv)
2089	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1903	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2090	{	1904	{
2091	SET_FLAG (tmp, flag);	1905	SET_FLAG (tmp, flag);
2092	flag_inv (tmp, flag);	1906	flag_inv (tmp, flag);
2093	}	1907	}
2094	} /*	1908	}
		1909
		1910	/*
2095	* desactivate recursively a flag on an object inventory	1911	* deactivate recursively a flag on an object inventory
2096	*/	1912	*/
2097	void	1913	void
2098	unflag_inv (object *op, int flag)	1914	unflag_inv (object *op, int flag)
2099	{	1915	{
2100	object *
2101	tmp;
2102
2103	if (op->inv)
2104	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1916	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2105	{	1917	{
2106	CLEAR_FLAG (tmp, flag);	1918	CLEAR_FLAG (tmp, flag);
2107	unflag_inv (tmp, flag);	1919	unflag_inv (tmp, flag);
2108	}	1920	}
2109	}
2110
2111	/*
2112	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in
2113	* all it's inventory (recursively).
2114	* If checksums are used, a player will get set_cheat called for
2115	* him/her-self and all object carried by a call to this function.
2116	*/
2117
2118	void
2119	set_cheat (object *op)
2120	{
2121	SET_FLAG (op, FLAG_WAS_WIZ);
2122	flag_inv (op, FLAG_WAS_WIZ);
2123	}	1921	}
2124		1922
2125	/*	1923	/*
2126	* find_free_spot(object, map, x, y, start, stop) will search for	1924	* find_free_spot(object, map, x, y, start, stop) will search for
2127	* a spot at the given map and coordinates which will be able to contain	1925	* a spot at the given map and coordinates which will be able to contain
…		…
2129	* to search (see the freearr_x/y[] definition).	1927	* to search (see the freearr_x/y[] definition).
2130	* It returns a random choice among the alternatives found.	1928	* It returns a random choice among the alternatives found.
2131	* start and stop are where to start relative to the free_arr array (1,9	1929	* start and stop are where to start relative to the free_arr array (1,9
2132	* does all 4 immediate directions). This returns the index into the	1930	* does all 4 immediate directions). This returns the index into the
2133	* array of the free spot, -1 if no spot available (dir 0 = x,y)	1931	* array of the free spot, -1 if no spot available (dir 0 = x,y)
2134	* Note - this only checks to see if there is space for the head of the
2135	* object - if it is a multispace object, this should be called for all
2136	* pieces.
2137	* Note2: This function does correctly handle tiled maps, but does not	1932	* Note: This function does correctly handle tiled maps, but does not
2138	* inform the caller. However, insert_ob_in_map will update as	1933	* inform the caller. However, insert_ob_in_map will update as
2139	* necessary, so the caller shouldn't need to do any special work.	1934	* necessary, so the caller shouldn't need to do any special work.
2140	* Note - updated to take an object instead of archetype - this is necessary	1935	* Note - updated to take an object instead of archetype - this is necessary
2141	* because arch_blocked (now ob_blocked) needs to know the movement type	1936	* because arch_blocked (now ob_blocked) needs to know the movement type
2142	* to know if the space in question will block the object. We can't use	1937	* to know if the space in question will block the object. We can't use
2143	* the archetype because that isn't correct if the monster has been	1938	* the archetype because that isn't correct if the monster has been
2144	* customized, changed states, etc.	1939	* customized, changed states, etc.
2145	*/	1940	*/
2146
2147	int	1941	int
2148	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)	1942	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)
2149	{	1943	{
2150	int
2151	i,
2152	index = 0, flag;
2153	static int
2154	altern[SIZEOFFREE];	1944	int altern[SIZEOFFREE];
		1945	int index = 0, flag;
2155		1946
2156	for (i = start; i < stop; i++)	1947	for (int i = start; i < stop; i++)
2157	{	1948	{
2158	flag = ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]);	1949	mapxy pos (m, x, y); pos.move (i);
2159	if (!flag)	1950
		1951	if (!pos.normalise ())
		1952	continue;
		1953
		1954	mapspace &ms = *pos;
		1955
		1956	if (ms.flags () & P_IS_ALIVE)
		1957	continue;
		1958
		1959	/* However, often
		1960	* ob doesn't have any move type (when used to place exits)
		1961	* so the AND operation in OB_TYPE_MOVE_BLOCK doesn't work.
		1962	*/
		1963	if (ob && ob->move_type == 0 && ms.move_block != MOVE_ALL)
		1964	{
2160	altern[index++] = i;	1965	altern [index++] = i;
		1966	continue;
		1967	}
2161		1968
2162	/* Basically, if we find a wall on a space, we cut down the search size.	1969	/* Basically, if we find a wall on a space, we cut down the search size.
2163	* In this way, we won't return spaces that are on another side of a wall.	1970	* In this way, we won't return spaces that are on another side of a wall.
2164	* This mostly work, but it cuts down the search size in all directions -	1971	* This mostly work, but it cuts down the search size in all directions -
2165	* if the space being examined only has a wall to the north and empty	1972	* if the space being examined only has a wall to the north and empty
2166	* spaces in all the other directions, this will reduce the search space	1973	* spaces in all the other directions, this will reduce the search space
2167	* to only the spaces immediately surrounding the target area, and	1974	* to only the spaces immediately surrounding the target area, and
2168	* won't look 2 spaces south of the target space.	1975	* won't look 2 spaces south of the target space.
2169	*/	1976	*/
2170	else if ((flag & AB_NO_PASS) && maxfree[i] < stop)	1977	if (ms.move_block == MOVE_ALL && maxfree[i] < stop)
		1978	{
2171	stop = maxfree[i];	1979	stop = maxfree[i];
		1980	continue;
		1981	}
		1982
		1983	/* Note it is intentional that we check ob - the movement type of the
		1984	* head of the object should correspond for the entire object.
		1985	*/
		1986	if (OB_TYPE_MOVE_BLOCK (ob, ms.move_block))
		1987	continue;
		1988
		1989	if (ob->blocked (pos.m, pos.x, pos.y))
		1990	continue;
		1991
		1992	altern [index++] = i;
2172	}	1993	}
		1994
2173	if (!index)	1995	if (!index)
2174	return -1;	1996	return -1;
		1997
2175	return altern[RANDOM () % index];	1998	return altern [rndm (index)];
2176	}	1999	}
2177		2000
2178	/*	2001	/*
2179	* find_first_free_spot(archetype, maptile, x, y) works like	2002	* find_first_free_spot(archetype, maptile, x, y) works like
2180	* find_free_spot(), but it will search max number of squares.	2003	* find_free_spot(), but it will search max number of squares.
2181	* But it will return the first available spot, not a random choice.	2004	* But it will return the first available spot, not a random choice.
2182	* Changed 0.93.2: Have it return -1 if there is no free spot available.	2005	* Changed 0.93.2: Have it return -1 if there is no free spot available.
2183	*/	2006	*/
2184
2185	int	2007	int
2186	find_first_free_spot (const object *ob, maptile *m, int x, int y)	2008	find_first_free_spot (const object *ob, maptile *m, int x, int y)
2187	{	2009	{
2188	int
2189	i;
2190
2191	for (i = 0; i < SIZEOFFREE; i++)	2010	for (int i = 0; i < SIZEOFFREE; i++)
2192	{
2193	if (!ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]))	2011	if (!ob->blocked (m, x + freearr_x[i], y + freearr_y[i]))
2194	return i;	2012	return i;
2195	}	2013
2196	return -1;	2014	return -1;
2197	}	2015	}
2198		2016
2199	/*	2017	/*
2200	* The function permute(arr, begin, end) randomly reorders the array	2018	* The function permute(arr, begin, end) randomly reorders the array
2201	* arr[begin..end-1].	2019	* arr[begin..end-1].
		2020	* now uses a fisher-yates shuffle, old permute was broken
2202	*/	2021	*/
2203	static void	2022	static void
2204	permute (int *arr, int begin, int end)	2023	permute (int *arr, int begin, int end)
2205	{	2024	{
2206	int	2025	arr += begin;
2207	i,
2208	j,
2209	tmp,
2210	len;
2211
2212	len = end - begin;	2026	end -= begin;
2213	for (i = begin; i < end; i++)
2214	{
2215	j = begin + RANDOM () % len;
2216		2027
2217	tmp = arr[i];	2028	while (--end)
2218	arr[i] = arr[j];	2029	swap (arr [end], arr [rndm (end + 1)]);
2219	arr[j] = tmp;
2220	}
2221	}	2030	}
2222		2031
2223	/* new function to make monster searching more efficient, and effective!	2032	/* new function to make monster searching more efficient, and effective!
2224	* This basically returns a randomized array (in the passed pointer) of	2033	* This basically returns a randomized array (in the passed pointer) of
2225	* the spaces to find monsters. In this way, it won't always look for	2034	* the spaces to find monsters. In this way, it won't always look for
…		…
2228	* the 3x3 area will be searched, just not in a predictable order.	2037	* the 3x3 area will be searched, just not in a predictable order.
2229	*/	2038	*/
2230	void	2039	void
2231	get_search_arr (int *search_arr)	2040	get_search_arr (int *search_arr)
2232	{	2041	{
2233	int	2042	int i;
2234	i;
2235		2043
2236	for (i = 0; i < SIZEOFFREE; i++)	2044	for (i = 0; i < SIZEOFFREE; i++)
2237	{
2238	search_arr[i] = i;	2045	search_arr[i] = i;
2239	}
2240		2046
2241	permute (search_arr, 1, SIZEOFFREE1 + 1);	2047	permute (search_arr, 1, SIZEOFFREE1 + 1);
2242	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);	2048	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);
2243	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);	2049	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);
2244	}	2050	}
…		…
2253	* Perhaps incorrectly, but I'm making the assumption that exclude	2059	* Perhaps incorrectly, but I'm making the assumption that exclude
2254	* is actually want is going to try and move there. We need this info	2060	* is actually want is going to try and move there. We need this info
2255	* because we have to know what movement the thing looking to move	2061	* because we have to know what movement the thing looking to move
2256	* there is capable of.	2062	* there is capable of.
2257	*/	2063	*/
2258
2259	int	2064	int
2260	find_dir (maptile *m, int x, int y, object *exclude)	2065	find_dir (maptile *m, int x, int y, object *exclude)
2261	{	2066	{
2262	int
2263	i,
2264	max = SIZEOFFREE, mflags;	2067	int max = SIZEOFFREE, mflags;
2265
2266	sint16 nx, ny;
2267	object *
2268	tmp;
2269	maptile *
2270	mp;
2271
2272	MoveType blocked, move_type;	2068	MoveType move_type;
2273		2069
2274	if (exclude && exclude->head)	2070	if (exclude && exclude->head_ () != exclude)
2275	{	2071	{
2276	exclude = exclude->head;	2072	exclude = exclude->head;
2277	move_type = exclude->move_type;	2073	move_type = exclude->move_type;
2278	}	2074	}
2279	else	2075	else
2280	{	2076	{
2281	/* If we don't have anything, presume it can use all movement types. */	2077	/* If we don't have anything, presume it can use all movement types. */
2282	move_type = MOVE_ALL;	2078	move_type = MOVE_ALL;
2283	}	2079	}
2284		2080
2285	for (i = 1; i < max; i++)	2081	for (int i = 1; i < max; i++)
2286	{	2082	{
2287	mp = m;	2083	mapxy pos (m, x, y);
2288	nx = x + freearr_x[i];	2084	pos.move (i);
2289	ny = y + freearr_y[i];
2290		2085
2291	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);	2086	if (!pos.normalise ())
2292	if (mflags & P_OUT_OF_MAP)
2293	{
2294	max = maxfree[i];	2087	max = maxfree[i];
2295	}
2296	else	2088	else
2297	{	2089	{
2298	blocked = GET_MAP_MOVE_BLOCK (mp, nx, ny);	2090	mapspace &ms = *pos;
2299		2091
2300	if ((move_type & blocked) == move_type)	2092	if ((move_type & ms.move_block) == move_type)
		2093	max = maxfree [i];
		2094	else if (ms.flags () & P_IS_ALIVE)
2301	{	2095	{
2302	max = maxfree[i];	2096	for (object *tmp = ms.bot; tmp; tmp = tmp->above)
2303	}	2097	if ((tmp->flag [FLAG_MONSTER] || tmp->is_player ())
2304	else if (mflags & P_IS_ALIVE)	2098	&& (tmp != exclude || (tmp->head_ () != tmp && tmp->head_ () != exclude)))
2305	{
2306	for (tmp = GET_MAP_OB (mp, nx, ny); tmp != NULL; tmp = tmp->above)
2307	{
2308	if ((QUERY_FLAG (tmp, FLAG_MONSTER) || tmp->type == PLAYER) && (tmp != exclude || (tmp->head && tmp->head != exclude)))
2309	{
2310	break;
2311	}
2312	}
2313	if (tmp)
2314	{
2315	return freedir[i];	2099	return freedir [i];
2316	}
2317	}	2100	}
2318	}	2101	}
2319	}	2102	}
		2103
2320	return 0;	2104	return 0;
2321	}	2105	}
2322		2106
2323	/*	2107	/*
2324	* distance(object 1, object 2) will return the square of the	2108	* distance(object 1, object 2) will return the square of the
2325	* distance between the two given objects.	2109	* distance between the two given objects.
2326	*/	2110	*/
2327
2328	int	2111	int
2329	distance (const object *ob1, const object *ob2)	2112	distance (const object *ob1, const object *ob2)
2330	{	2113	{
2331	int
2332	i;
2333
2334	i = (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);	2114	return (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);
2335	return i;
2336	}	2115	}
2337		2116
2338	/*	2117	/*
2339	* find_dir_2(delta-x,delta-y) will return a direction in which	2118	* find_dir_2(delta-x,delta-y) will return a direction in which
2340	* an object which has subtracted the x and y coordinates of another	2119	* an object which has subtracted the x and y coordinates of another
2341	* object, needs to travel toward it.	2120	* object, needs to travel toward it.
2342	*/	2121	*/
2343
2344	int	2122	int
2345	find_dir_2 (int x, int y)	2123	find_dir_2 (int x, int y)
2346	{	2124	{
2347	int	2125	int q;
2348	q;
2349		2126
2350	if (y)	2127	if (y)
2351	q = x * 100 / y;	2128	q = x * 100 / y;
2352	else if (x)	2129	else if (x)
2353	q = -300 * x;	2130	q = -300 * x;
…		…
2378		2155
2379	return 3;	2156	return 3;
2380	}	2157	}
2381		2158
2382	/*	2159	/*
2383	* absdir(int): Returns a number between 1 and 8, which represent
2384	* the "absolute" direction of a number (it actually takes care of
2385	* "overflow" in previous calculations of a direction).
2386	*/
2387
2388	int
2389	absdir (int d)
2390	{
2391	while (d < 1)
2392	d += 8;
2393	while (d > 8)
2394	d -= 8;
2395	return d;
2396	}
2397
2398	/*
2399	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is	2160	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is
2400	* between two directions (which are expected to be absolute (see absdir())	2161	* between two directions (which are expected to be absolute (see absdir())
2401	*/	2162	*/
2402
2403	int	2163	int
2404	dirdiff (int dir1, int dir2)	2164	dirdiff (int dir1, int dir2)
2405	{	2165	{
2406	int	2166	int d;
2407	d;
2408		2167
2409	d = abs (dir1 - dir2);	2168	d = abs (dir1 - dir2);
2410	if (d > 4)	2169	if (d > 4)
2411	d = 8 - d;	2170	d = 8 - d;
		2171
2412	return d;	2172	return d;
2413	}	2173	}
2414		2174
2415	/* peterm:	2175	/* peterm:
2416	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.	2176	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.
…		…
2419	* This basically means that if direction is 15, then it could either go	2179	* This basically means that if direction is 15, then it could either go
2420	* direction 4, 14, or 16 to get back to where we are.	2180	* direction 4, 14, or 16 to get back to where we are.
2421	* Moved from spell_util.c to object.c with the other related direction	2181	* Moved from spell_util.c to object.c with the other related direction
2422	* functions.	2182	* functions.
2423	*/	2183	*/
2424
2425	int
2426	reduction_dir[SIZEOFFREE][3] = {	2184	const int reduction_dir[SIZEOFFREE][3] = {
2427	{0, 0, 0}, /* 0 */	2185	{0, 0, 0}, /* 0 */
2428	{0, 0, 0}, /* 1 */	2186	{0, 0, 0}, /* 1 */
2429	{0, 0, 0}, /* 2 */	2187	{0, 0, 0}, /* 2 */
2430	{0, 0, 0}, /* 3 */	2188	{0, 0, 0}, /* 3 */
2431	{0, 0, 0}, /* 4 */	2189	{0, 0, 0}, /* 4 */
…		…
2479	* find a path to that monster that we found. If not,	2237	* find a path to that monster that we found. If not,
2480	* we don't bother going toward it. Returns 1 if we	2238	* we don't bother going toward it. Returns 1 if we
2481	* can see a direct way to get it	2239	* can see a direct way to get it
2482	* Modified to be map tile aware -.MSW	2240	* Modified to be map tile aware -.MSW
2483	*/	2241	*/
2484
2485
2486	int	2242	int
2487	can_see_monsterP (maptile *m, int x, int y, int dir)	2243	can_see_monsterP (maptile *m, int x, int y, int dir)
2488	{	2244	{
2489	sint16 dx, dy;	2245	sint16 dx, dy;
2490	int
2491	mflags;	2246	int mflags;
2492		2247
2493	if (dir < 0)	2248	if (dir < 0)
2494	return 0; /* exit condition: invalid direction */	2249	return 0; /* exit condition: invalid direction */
2495		2250
2496	dx = x + freearr_x[dir];	2251	dx = x + freearr_x[dir];
…		…
2509	return 0;	2264	return 0;
2510		2265
2511	/* yes, can see. */	2266	/* yes, can see. */
2512	if (dir < 9)	2267	if (dir < 9)
2513	return 1;	2268	return 1;
		2269
2514	return can_see_monsterP (m, x, y, reduction_dir[dir][0]) |	2270	return can_see_monsterP (m, x, y, reduction_dir[dir][0])
2515	can_see_monsterP (m, x, y, reduction_dir[dir][1]) | can_see_monsterP (m, x, y, reduction_dir[dir][2]);	2271	| can_see_monsterP (m, x, y, reduction_dir[dir][1])
		2272	| can_see_monsterP (m, x, y, reduction_dir[dir][2]);
2516	}	2273	}
2517
2518
2519		2274
2520	/*	2275	/*
2521	* can_pick(picker, item): finds out if an object is possible to be	2276	* can_pick(picker, item): finds out if an object is possible to be
2522	* picked up by the picker. Returnes 1 if it can be	2277	* picked up by the picker. Returnes 1 if it can be
2523	* picked up, otherwise 0.	2278	* picked up, otherwise 0.
…		…
2525	* Cf 0.91.3 - don't let WIZ's pick up anything - will likely cause	2280	* Cf 0.91.3 - don't let WIZ's pick up anything - will likely cause
2526	* core dumps if they do.	2281	* core dumps if they do.
2527	*	2282	*
2528	* Add a check so we can't pick up invisible objects (0.93.8)	2283	* Add a check so we can't pick up invisible objects (0.93.8)
2529	*/	2284	*/
2530
2531	int	2285	int
2532	can_pick (const object *who, const object *item)	2286	can_pick (const object *who, const object *item)
2533	{	2287	{
2534	return /*QUERY_FLAG(who,FLAG_WIZ)|| */	2288	return /*QUERY_FLAG(who,FLAG_WIZ)|| */
2535	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&	2289	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&
2536	!QUERY_FLAG (item, FLAG_ALIVE) && !item->invisible && (who->type == PLAYER || item->weight < who->weight / 3));	2290	!QUERY_FLAG (item, FLAG_ALIVE) && !item->invisible && (who->is_player () || item->weight < who->weight / 3));
2537	}	2291	}
2538
2539		2292
2540	/*	2293	/*
2541	* create clone from object to another	2294	* create clone from object to another
2542	*/	2295	*/
2543	object *	2296	object *
2544	object_create_clone (object *asrc)	2297	object::deep_clone ()
2545	{	2298	{
2546	object *	2299	assert (("deep_clone called on non-head object", is_head ()));
2547	dst = NULL, *tmp, *src, *part, *prev, *item;
2548		2300
2549	if (!asrc)	2301	object *dst = clone ();
2550	return NULL;
2551	src = asrc;
2552	if (src->head)
2553	src = src->head;
2554		2302
2555	prev = NULL;	2303	object *prev = dst;
2556	for (part = src; part; part = part->more)	2304	for (object *part = this->more; part; part = part->more)
2557	{	2305	{
2558	tmp = get_object ();	2306	object *tmp = part->clone ();
2559	copy_object (part, tmp);
2560	tmp->x -= src->x;
2561	tmp->y -= src->y;
2562	if (!part->head)
2563	{
2564	dst = tmp;
2565	tmp->head = NULL;
2566	}
2567	else
2568	{
2569	tmp->head = dst;	2307	tmp->head = dst;
2570	}
2571	tmp->more = NULL;
2572	if (prev)
2573	prev->more = tmp;	2308	prev->more = tmp;
2574	prev = tmp;	2309	prev = tmp;
2575	}	2310	}
2576		2311
2577	for (item = src->inv; item; item = item->below)	2312	for (object *item = inv; item; item = item->below)
2578	insert_ob_in_ob (object_create_clone (item), dst);	2313	insert_ob_in_ob (item->deep_clone (), dst);
2579		2314
2580	return dst;	2315	return dst;
2581	}
2582
2583	/* GROS - Creates an object using a string representing its content. */
2584	/* Basically, we save the content of the string to a temp file, then call */
2585	/* load_object on it. I admit it is a highly inefficient way to make things, */
2586	/* but it was simple to make and allows reusing the load_object function. */
2587	/* Remember not to use load_object_str in a time-critical situation. */
2588	/* Also remember that multiparts objects are not supported for now. */
2589
2590	object *
2591	load_object_str (const char *obstr)
2592	{
2593	object *op;
2594	char filename[MAX_BUF];
2595
2596	sprintf (filename, "%s/cfloadobstr2044", settings.tmpdir);
2597
2598	FILE *tempfile = fopen (filename, "w");
2599
2600	if (tempfile == NULL)
2601	{
2602	LOG (llevError, "Error - Unable to access load object temp file\n");
2603	return NULL;
2604	}
2605
2606	fprintf (tempfile, obstr);
2607	fclose (tempfile);
2608
2609	op = get_object ();
2610
2611	object_thawer thawer (filename);
2612
2613	if (thawer)
2614	load_object (thawer, op, 0);
2615
2616	LOG (llevDebug, " load str completed, object=%s\n", &op->name);
2617	CLEAR_FLAG (op, FLAG_REMOVED);
2618
2619	return op;
2620	}	2316	}
2621		2317
2622	/* This returns the first object in who's inventory that	2318	/* This returns the first object in who's inventory that
2623	* has the same type and subtype match.	2319	* has the same type and subtype match.
2624	* returns NULL if no match.	2320	* returns NULL if no match.
2625	*/	2321	*/
2626	object *	2322	object *
2627	find_obj_by_type_subtype (const object *who, int type, int subtype)	2323	find_obj_by_type_subtype (const object *who, int type, int subtype)
2628	{	2324	{
2629	object *tmp;
2630
2631	for (tmp = who->inv; tmp; tmp = tmp->below)	2325	for (object *tmp = who->inv; tmp; tmp = tmp->below)
2632	if (tmp->type == type && tmp->subtype == subtype)	2326	if (tmp->type == type && tmp->subtype == subtype)
2633	return tmp;	2327	return tmp;
2634		2328
2635	return NULL;
2636	}
2637
2638	/* If ob has a field named key, return the link from the list,
2639	* otherwise return NULL.
2640	*
2641	* key must be a passed in shared string - otherwise, this won't
2642	* do the desired thing.
2643	*/
2644	key_value *
2645	get_ob_key_link (const object *ob, const char *key)
2646	{
2647	key_value *link;
2648
2649	for (link = ob->key_values; link != NULL; link = link->next)
2650	if (link->key == key)
2651	return link;
2652
2653	return NULL;
2654	}
2655
2656	/*
2657	* Returns the value of op has an extra_field for key, or NULL.
2658	*
2659	* The argument doesn't need to be a shared string.
2660	*
2661	* The returned string is shared.
2662	*/
2663	const char *
2664	get_ob_key_value (const object *op, const char *const key)
2665	{
2666	key_value *link;
2667	shstr_cmp canonical_key (key);
2668
2669	if (!canonical_key)
2670	{
2671	/* 1. There being a field named key on any object
2672	* implies there'd be a shared string to find.
2673	* 2. Since there isn't, no object has this field.
2674	* 3. Therefore, *this* object doesn't have this field.
2675	*/
2676	return 0;
2677	}
2678
2679	/* This is copied from get_ob_key_link() above -
2680	* only 4 lines, and saves the function call overhead.
2681	*/
2682	for (link = op->key_values; link; link = link->next)
2683	if (link->key == canonical_key)
2684	return link->value;
2685
2686	return 0;	2329	return 0;
2687	}	2330	}
2688		2331
2689		2332	shstr_tmp
2690	/*	2333	object::kv_get (shstr_tmp key) const
2691	* Updates the canonical_key in op to value.
2692	*
2693	* canonical_key is a shared string (value doesn't have to be).
2694	*
2695	* Unless add_key is TRUE, it won't add fields, only change the value of existing
2696	* keys.
2697	*
2698	* Returns TRUE on success.
2699	*/
2700	int
2701	set_ob_key_value_s (object *op, const shstr & canonical_key, const char *value, int add_key)
2702	{	2334	{
2703	key_value *	2335	for (key_value *kv = key_values; kv; kv = kv->next)
2704	field = NULL, *last = NULL;	2336	if (kv->key == key)
		2337	return kv->value;
2705		2338
2706	for (field = op->key_values; field != NULL; field = field->next)	2339	return shstr ();
2707	{	2340	}
2708	if (field->key != canonical_key)	2341
		2342	void
		2343	object::kv_set (shstr_tmp key, shstr_tmp value)
		2344	{
		2345	for (key_value *kv = key_values; kv; kv = kv->next)
		2346	if (kv->key == key)
2709	{	2347	{
2710	last = field;	2348	kv->value = value;
2711	continue;	2349	return;
2712	}	2350	}
2713		2351
2714	if (value)	2352	key_value *kv = new key_value;
2715	field->value = value;	2353
2716	else	2354	kv->next = key_values;
		2355	kv->key = key;
		2356	kv->value = value;
		2357
		2358	key_values = kv;
		2359	}
		2360
		2361	void
		2362	object::kv_del (shstr_tmp key)
		2363	{
		2364	for (key_value **kvp = &key_values; *kvp; kvp = &(*kvp)->next)
		2365	if ((*kvp)->key == key)
2717	{	2366	{
2718	/* Basically, if the archetype has this key set,	2367	key_value *kv = *kvp;
2719	* we need to store the null value so when we save	2368	*kvp = (*kvp)->next;
2720	* it, we save the empty value so that when we load,	2369	delete kv;
2721	* we get this value back again.	2370	return;
2722	*/
2723	if (get_ob_key_link (&op->arch->clone, canonical_key))
2724	field->value = 0;
2725	else
2726	{
2727	if (last)
2728	last->next = field->next;
2729	else
2730	op->key_values = field->next;
2731
2732	delete field;
2733	}
2734	}	2371	}
2735	return TRUE;
2736	}
2737	/* IF we get here, key doesn't exist */
2738
2739	/* No field, we'll have to add it. */
2740
2741	if (!add_key)
2742	{
2743	return FALSE;
2744	}
2745	/* There isn't any good reason to store a null
2746	* value in the key/value list. If the archetype has
2747	* this key, then we should also have it, so shouldn't
2748	* be here. If user wants to store empty strings,
2749	* should pass in ""
2750	*/
2751	if (value == NULL)
2752	return TRUE;
2753
2754	field = new key_value;
2755
2756	field->key = canonical_key;
2757	field->value = value;
2758	/* Usual prepend-addition. */
2759	field->next = op->key_values;
2760	op->key_values = field;
2761
2762	return TRUE;
2763	}
2764
2765	/*
2766	* Updates the key in op to value.
2767	*
2768	* If add_key is FALSE, this will only update existing keys,
2769	* and not add new ones.
2770	* In general, should be little reason FALSE is ever passed in for add_key
2771	*
2772	* Returns TRUE on success.
2773	*/
2774	int
2775	set_ob_key_value (object *op, const char *key, const char *value, int add_key)
2776	{
2777	shstr key_ (key);
2778
2779	return set_ob_key_value_s (op, key_, value, add_key);
2780	}	2372	}
2781		2373
2782	object::depth_iterator::depth_iterator (object *container)	2374	object::depth_iterator::depth_iterator (object *container)
2783	: iterator_base (container)	2375	: iterator_base (container)
2784	{	2376	{
…		…
2798	}	2390	}
2799	else	2391	else
2800	item = item->env;	2392	item = item->env;
2801	}	2393	}
2802		2394
		2395	const char *
		2396	object::flag_desc (char *desc, int len) const
		2397	{
		2398	char *p = desc;
		2399	bool first = true;
		2400
		2401	*p = 0;
		2402
		2403	for (int i = 0; i < NUM_FLAGS; i++)
		2404	{
		2405	if (len <= 10) // magic constant!
		2406	{
		2407	snprintf (p, len, ",...");
		2408	break;
		2409	}
		2410
		2411	if (flag [i])
		2412	{
		2413	int cnt = snprintf (p, len, "%s%d", first ? "" : ",", i);
		2414	len -= cnt;
		2415	p += cnt;
		2416	first = false;
		2417	}
		2418	}
		2419
		2420	return desc;
		2421	}
		2422
2803	// return a suitable string describing an objetc in enough detail to find it	2423	// return a suitable string describing an object in enough detail to find it
2804	const char *	2424	const char *
2805	object::debug_desc (char *info) const	2425	object::debug_desc (char *info) const
2806	{	2426	{
		2427	char flagdesc[512];
2807	char info2[256 * 3];	2428	char info2[256 * 4];
2808	char *p = info;	2429	char *p = info;
2809		2430
2810	p += snprintf (p, 256, "%d=\"%s%s%s\"",	2431	p += snprintf (p, 512, "{cnt:%d,uuid:%s,name:\"%s\"%s%s%s,flags:[%s],type:%d}",
2811	count,	2432	count,
		2433	uuid.c_str (),
2812	&name,	2434	&name,
2813	title ? " " : "",	2435	title ? ",title:\"" : "",
2814	title ? (const char *)title : "");	2436	title ? (const char *)title : "",
		2437	title ? "\"" : "",
		2438	flag_desc (flagdesc, 512), type);
2815		2439
2816	if (env)	2440	if (!flag[FLAG_REMOVED] && env)
2817	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));	2441	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));
2818		2442
2819	if (map)	2443	if (map)
2820	p += snprintf (p, 256, "(on %s@%d+%d)", map->path, x, y);	2444	p += snprintf (p, 256, "(on %s@%d+%d)", &map->path, x, y);
2821		2445
2822	return info;	2446	return info;
2823	}	2447	}
2824		2448
2825	const char *	2449	const char *
2826	object::debug_desc () const	2450	object::debug_desc () const
2827	{	2451	{
2828	static char info[256 * 3];	2452	static char info[3][256 * 4];
		2453	static int info_idx;
		2454
2829	return debug_desc (info);	2455	return debug_desc (info [++info_idx % 3]);
2830	}	2456	}
2831		2457
		2458	struct region *
		2459	object::region () const
		2460	{
		2461	return map ? map->region (x, y)
		2462	: region::default_region ();
		2463	}
		2464
		2465	const materialtype_t *
		2466	object::dominant_material () const
		2467	{
		2468	if (materialtype_t *mt = name_to_material (materialname))
		2469	return mt;
		2470
		2471	return name_to_material (shstr_unknown);
		2472	}
		2473
		2474	void
		2475	object::open_container (object *new_container)
		2476	{
		2477	if (container == new_container)
		2478	return;
		2479
		2480	object *old_container = container;
		2481
		2482	if (old_container)
		2483	{
		2484	if (INVOKE_OBJECT (CLOSE, old_container, ARG_OBJECT (this)))
		2485	return;
		2486
		2487	#if 0
		2488	// remove the "Close old_container" object.
		2489	if (object *closer = old_container->inv)
		2490	if (closer->type == CLOSE_CON)
		2491	closer->destroy ();
		2492	#endif
		2493
		2494	// make sure the container is available
		2495	esrv_send_item (this, old_container);
		2496
		2497	old_container->flag [FLAG_APPLIED] = false;
		2498	container = 0;
		2499
		2500	// client needs item update to make it work, client bug requires this to be separate
		2501	esrv_update_item (UPD_FLAGS, this, old_container);
		2502
		2503	new_draw_info_format (NDI_UNIQUE, 0, this, "You close %s.", old_container->query_name ());
		2504	play_sound (sound_find ("chest_close"));
		2505	}
		2506
		2507	if (new_container)
		2508	{
		2509	if (INVOKE_OBJECT (OPEN, new_container, ARG_OBJECT (this)))
		2510	return;
		2511
		2512	// TODO: this does not seem to serve any purpose anymore?
		2513	#if 0
		2514	// insert the "Close Container" object.
		2515	if (archetype *closer = new_container->other_arch)
		2516	{
		2517	object *closer = arch_to_object (new_container->other_arch);
		2518	closer->flag [FLAG_NO_MAP_SAVE] = 1;
		2519	new_container->insert (closer);
		2520	}
		2521	#endif
		2522
		2523	new_draw_info_format (NDI_UNIQUE, 0, this, "You open %s.", new_container->query_name ());
		2524
		2525	// make sure the container is available, client bug requires this to be separate
		2526	esrv_send_item (this, new_container);
		2527
		2528	new_container->flag [FLAG_APPLIED] = true;
		2529	container = new_container;
		2530
		2531	// client needs flag change
		2532	esrv_update_item (UPD_FLAGS, this, new_container);
		2533	esrv_send_inventory (this, new_container);
		2534	play_sound (sound_find ("chest_open"));
		2535	}
		2536	// else if (!old_container->env && contr && contr->ns)
		2537	// contr->ns->floorbox_reset ();
		2538	}
		2539
		2540	object *
		2541	object::force_find (shstr_tmp name)
		2542	{
		2543	/* cycle through his inventory to look for the MARK we want to
		2544	* place
		2545	*/
		2546	for (object *tmp = inv; tmp; tmp = tmp->below)
		2547	if (tmp->type == FORCE && tmp->slaying == name)
		2548	return splay (tmp);
		2549
		2550	return 0;
		2551	}
		2552
		2553	void
		2554	object::force_set_timer (int duration)
		2555	{
		2556	this->duration = 1;
		2557	this->speed_left = -1.f;
		2558
		2559	this->set_speed (duration ? 1.f / duration : 0.f);
		2560	}
		2561
		2562	object *
		2563	object::force_add (shstr_tmp name, int duration)
		2564	{
		2565	if (object *force = force_find (name))
		2566	force->destroy ();
		2567
		2568	object *force = get_archetype (FORCE_NAME);
		2569
		2570	force->slaying = name;
		2571
		2572	force->force_set_timer (duration);
		2573
		2574	force->flag [FLAG_APPLIED] = true;
		2575
		2576	return insert (force);
		2577	}
		2578
		2579	void
		2580	object::play_sound (faceidx sound) const
		2581	{
		2582	if (!sound)
		2583	return;
		2584
		2585	if (is_on_map ())
		2586	map->play_sound (sound, x, y);
		2587	else if (object *pl = in_player ())
		2588	pl->contr->play_sound (sound);
		2589	}
		2590
		2591	void
		2592	object::say_msg (const char *msg) const
		2593	{
		2594	if (is_on_map ())
		2595	map->say_msg (msg, x, y);
		2596	else if (object *pl = in_player ())
		2597	pl->contr->play_sound (sound);
		2598	}
		2599
		2600	void
		2601	object::make_noise ()
		2602	{
		2603	// we do not model noise in the map, so instead put
		2604	// a temporary light into the noise source
		2605	// could use the map instead, but that's less reliable for our
		2606	// goal, which is to make invisibility a bit harder to exploit
		2607
		2608	// currently only works sensibly for players
		2609	if (!is_player ())
		2610	return;
		2611
		2612	// find old force, or create new one
		2613	object *force = force_find (shstr_noise_force);
		2614
		2615	if (force)
		2616	force->speed_left = -1.f; // patch old speed up
		2617	else
		2618	{
		2619	force = archetype::get (shstr_noise_force);
		2620
		2621	force->slaying = shstr_noise_force;
		2622	force->stats.food = 1;
		2623	force->speed_left = -1.f;
		2624
		2625	force->set_speed (1.f / 4.f);
		2626	force->flag [FLAG_IS_USED_UP] = true;
		2627	force->flag [FLAG_APPLIED] = true;
		2628
		2629	insert (force);
		2630	}
		2631	}
		2632

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