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Comparing deliantra/server/common/object.C (file contents):
Revision 1.43 by root, Thu Sep 14 17:10:24 2006 UTC vs.
Revision 1.248 by root, Mon Jul 14 23:47:06 2008 UTC

1
2	/*	1	/*
3	CrossFire, A Multiplayer game for X-windows	2	* This file is part of Deliantra, the Roguelike Realtime MMORPG.
4		3	*
		4	* Copyright (©) 2005,2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
5	Copyright (C) 2001 Mark Wedel & Crossfire Development Team	5	* Copyright (©) 2001,2007 Mark Wedel & Crossfire Development Team
6	Copyright (C) 1992 Frank Tore Johansen	6	* Copyright (©) 1992,2007 Frank Tore Johansen
7		7	*
8	This program is free software; you can redistribute it and/or modify	8	* Deliantra is free software: you can redistribute it and/or modify
9	it under the terms of the GNU General Public License as published by	9	* it under the terms of the GNU General Public License as published by
10	the Free Software Foundation; either version 2 of the License, or	10	* the Free Software Foundation, either version 3 of the License, or
11	(at your option) any later version.	11	* (at your option) any later version.
12		12	*
13	This program is distributed in the hope that it will be useful,	13	* This program is distributed in the hope that it will be useful,
14	but WITHOUT ANY WARRANTY; without even the implied warranty of	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
15	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16	GNU General Public License for more details.	16	* GNU General Public License for more details.
17		17	*
18	You should have received a copy of the GNU General Public License	18	* You should have received a copy of the GNU General Public License
19	along with this program; if not, write to the Free Software	19	* along with this program. If not, see <http://www.gnu.org/licenses/>.
20	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.	20	*
21		21	* The authors can be reached via e-mail to <support@deliantra.net>
22	The authors can be reached via e-mail at crossfire-devel@real-time.com
23	*/	22	*/
24		23
25	/* Eneq(@csd.uu.se): Added weight-modifiers in environment of objects.
26	sub/add_weight will transcend the environment updating the carrying
27	variable. */
28	#include <global.h>	24	#include <global.h>
29	#include <stdio.h>	25	#include <stdio.h>
30	#include <sys/types.h>	26	#include <sys/types.h>
31	#include <sys/uio.h>	27	#include <sys/uio.h>
32	#include <object.h>	28	#include <object.h>
33	#include <funcpoint.h>	29	#include <sproto.h>
34	#include <loader.h>	30	#include <loader.h>
35		31
36	int nrofallocobjects = 0;	32	#include <bitset>
37	static UUID uuid;	33
		34	UUID UUID::cur;
		35	static uint64_t seq_next_save;
38	const uint64 UUID_SKIP = 1<<19;	36	static const uint64 UUID_GAP = 1<<19;
39		37
40	object *objects; /* Pointer to the list of used objects */	38	objectvec objects;
41	object *active_objects; /* List of active objects that need to be processed */	39	activevec actives;
42		40
43	short freearr_x[SIZEOFFREE] = { 0, 0, 1, 1, 1, 0, -1, -1, -1, 0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2, -2, -2, -2, -1,	41	short freearr_x[SIZEOFFREE] = {
		42	0,
		43	0, 1, 1, 1, 0, -1, -1, -1,
		44	0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2, -2, -2, -2, -1,
44	0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3, -3, -3, -3, -3, -2, -1	45	0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3, -3, -3, -3, -3, -2, -1
45	};	46	};
46	short freearr_y[SIZEOFFREE] = { 0, -1, -1, 0, 1, 1, 1, 0, -1, -2, -2, -2, -1, 0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2,	47	short freearr_y[SIZEOFFREE] = {
		48	0,
		49	-1, -1, 0, 1, 1, 1, 0, -1,
		50	-2, -2, -2, -1, 0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2,
47	-3, -3, -3, -3, -2, -1, 0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3	51	-3, -3, -3, -3, -2, -1, 0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3
48	};	52	};
49	int maxfree[SIZEOFFREE] = { 0, 9, 10, 13, 14, 17, 18, 21, 22, 25, 26, 27, 30, 31, 32, 33, 36, 37, 39, 39, 42, 43, 44, 45,	53	int maxfree[SIZEOFFREE] = {
		54	0,
		55	9, 10, 13, 14, 17, 18, 21, 22,
		56	25, 26, 27, 30, 31, 32, 33, 36, 37, 39, 39, 42, 43, 44, 45, 48,
50	48, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49	57	49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49
51	};	58	};
52	int freedir[SIZEOFFREE] = {	59	int freedir[SIZEOFFREE] = {
53	0, 1, 2, 3, 4, 5, 6, 7, 8, 1, 2, 2, 2, 3, 4, 4, 4, 5, 6, 6, 6, 7, 8, 8, 8,	60	0,
		61	1, 2, 3, 4, 5, 6, 7, 8,
		62	1, 2, 2, 2, 3, 4, 4, 4, 5, 6, 6, 6, 7, 8, 8, 8,
54	1, 2, 2, 2, 2, 2, 3, 4, 4, 4, 4, 4, 5, 6, 6, 6, 6, 6, 7, 8, 8, 8, 8, 8	63	1, 2, 2, 2, 2, 2, 3, 4, 4, 4, 4, 4, 5, 6, 6, 6, 6, 6, 7, 8, 8, 8, 8, 8
55	};	64	};
56		65
57	static void	66	static void
58	write_uuid (void)	67	write_uuid (uval64 skip, bool sync)
59	{	68	{
60	char filename1[MAX_BUF], filename2[MAX_BUF];	69	CALL_BEGIN (2);
61		70	CALL_ARG_SV (newSVval64 (skip));
62	sprintf (filename1, "%s/uuid", settings.localdir);	71	CALL_ARG_SV (boolSV (sync));
63	sprintf (filename2, "%s/uuid~", settings.localdir);	72	CALL_CALL ("cf::write_uuid", G_DISCARD);
64		73	CALL_END;
65	FILE *fp;
66
67	if (!(fp = fopen (filename2, "w")))
68	{
69	LOG (llevError, "ERROR: cannot open %s for writing, unable to write UUID!\n", filename2);
70	return;
71	}
72
73	fprintf (fp, "<1,%llx>\n", (unsigned long long)uuid.seq + UUID_SKIP * 2);
74	fclose (fp);
75	rename (filename2, filename1);
76	}	74	}
77		75
78	static void	76	static void
79	read_uuid (void)	77	read_uuid (void)
80	{	78	{
81	char filename[MAX_BUF];	79	char filename[MAX_BUF];
82		80
83	sprintf (filename, "%s/uuid", settings.localdir);	81	sprintf (filename, "%s/uuid", settings.localdir);
		82
		83	seq_next_save = 0;
84		84
85	FILE *fp;	85	FILE *fp;
86		86
87	if (!(fp = fopen (filename, "r")))	87	if (!(fp = fopen (filename, "r")))
88	{	88	{
89	if (errno == ENOENT)	89	if (errno == ENOENT)
90	{	90	{
91	LOG (llevInfo, "RESET uid to 1\n");	91	LOG (llevInfo, "RESET uid to 1\n");
92	uuid.seq = 0;	92	UUID::cur.seq = 0;
93	write_uuid ();	93	write_uuid (UUID_GAP, true);
94	return;	94	return;
95	}	95	}
96		96
97	LOG (llevError, "FATAL: cannot open %s for reading!\n", filename);	97	LOG (llevError, "FATAL: cannot open %s for reading!\n", filename);
98	_exit (1);	98	_exit (1);
99	}	99	}
100		100
101	int version;	101	UUID::BUF buf;
102	unsigned long long uid;	102	buf[0] = 0;
103	if (2 != fscanf (fp, "<%d,%llx>\n", &version, &uid) || version != 1)	103	fgets (buf, sizeof (buf), fp);
		104
		105	if (!UUID::cur.parse (buf))
104	{	106	{
105	LOG (llevError, "FATAL: error reading uid from %s!\n", filename);	107	LOG (llevError, "FATAL: error reading uid from %s (%s)!\n", filename, buf);
106	_exit (1);	108	_exit (1);
107	}	109	}
108		110
109	uuid.seq = uid;
110	write_uuid ();
111	LOG (llevDebug, "read UID: %lld\n", uid);	111	LOG (llevDebug, "read UUID: %s\n", UUID::cur.c_str ());
		112
		113	write_uuid (UUID_GAP, true);
112	fclose (fp);	114	fclose (fp);
113	}	115	}
114		116
115	UUID	117	UUID
116	gen_uuid ()	118	UUID::gen ()
117	{	119	{
118	UUID uid;	120	UUID uid;
119		121
120	uid.seq = ++uuid.seq;	122	uid.seq = ++cur.seq;
121		123
122	if (!(uuid.seq & (UUID_SKIP - 1)))	124	if (expect_false (cur.seq >= seq_next_save))
123	write_uuid ();	125	{
		126	seq_next_save = UUID::cur.seq + (UUID_GAP >> 1);
		127	write_uuid (UUID_GAP, false);
		128	}
		129
124		130
125	return uid;	131	return uid;
126	}	132	}
127		133
128	void	134	void
129	init_uuid ()	135	UUID::init ()
130	{	136	{
131	read_uuid ();	137	read_uuid ();
132	}	138	}
133		139
134	/* Returns TRUE if every key_values in wants has a partner with the same value in has. */	140	/* Returns TRUE if every key_values in wants has a partner with the same value in has. */
135	static int	141	static bool
136	compare_ob_value_lists_one (const object *wants, const object *has)	142	compare_ob_value_lists_one (const object *wants, const object *has)
137	{	143	{
138	key_value *wants_field;
139
140	/* n-squared behaviour (see get_ob_key_link()), but I'm hoping both	144	/* n-squared behaviour (see kv_get), but I'm hoping both
141	* objects with lists are rare, and lists stay short. If not, use a	145	* objects with lists are rare, and lists stay short. If not, use a
142	* different structure or at least keep the lists sorted...	146	* different structure or at least keep the lists sorted...
143	*/	147	*/
144		148
145	/* For each field in wants, */	149	/* For each field in wants, */
146	for (wants_field = wants->key_values; wants_field != NULL; wants_field = wants_field->next)	150	for (key_value *kv = wants->key_values; kv; kv = kv->next)
147	{	151	if (has->kv_get (kv->key) != kv->value)
148	key_value *has_field;	152	return false;
149
150	/* Look for a field in has with the same key. */
151	has_field = get_ob_key_link (has, wants_field->key);
152
153	if (has_field == NULL)
154	{
155	/* No field with that name. */
156	return FALSE;
157	}
158
159	/* Found the matching field. */
160	if (has_field->value != wants_field->value)
161	{
162	/* Values don't match, so this half of the comparison is false. */
163	return FALSE;
164	}
165
166	/* If we get here, we found a match. Now for the next field in wants. */
167	}
168		153
169	/* If we get here, every field in wants has a matching field in has. */	154	/* If we get here, every field in wants has a matching field in has. */
170	return TRUE;	155	return true;
171	}	156	}
172		157
173	/* Returns TRUE if ob1 has the same key_values as ob2. */	158	/* Returns TRUE if ob1 has the same key_values as ob2. */
174	static int	159	static bool
175	compare_ob_value_lists (const object *ob1, const object *ob2)	160	compare_ob_value_lists (const object *ob1, const object *ob2)
176	{	161	{
177	/* However, there may be fields in has which aren't partnered in wants,	162	/* However, there may be fields in has which aren't partnered in wants,
178	* so we need to run the comparison *twice*. :(	163	* so we need to run the comparison *twice*. :(
179	*/	164	*/
180	return compare_ob_value_lists_one (ob1, ob2) && compare_ob_value_lists_one (ob2, ob1);	165	return compare_ob_value_lists_one (ob1, ob2)
		166	&& compare_ob_value_lists_one (ob2, ob1);
181	}	167	}
182		168
183	/* Function examines the 2 objects given to it, and returns true if	169	/* Function examines the 2 objects given to it, and returns true if
184	* they can be merged together.	170	* they can be merged together.
185	*	171	*
186	* Note that this function appears a lot longer than the macro it	172	* Note that this function appears a lot longer than the macro it
187	* replaces - this is mostly for clarity - a decent compiler should hopefully	173	* replaces - this is mostly for clarity - a decent compiler should hopefully
188	* reduce this to the same efficiency.	174	* reduce this to the same efficiency.
189	*	175	*
190	* Check nrof variable *before* calling CAN_MERGE()	176	* Check nrof variable *before* calling can_merge()
191	*	177	*
192	* Improvements made with merge: Better checking on potion, and also	178	* Improvements made with merge: Better checking on potion, and also
193	* check weight	179	* check weight
194	*/	180	*/
195
196	bool object::can_merge (object *ob1, object *ob2)	181	bool object::can_merge_slow (object *ob1, object *ob2)
197	{	182	{
198	/* A couple quicksanity checks */	183	/* A couple quicksanity checks */
199	if ((ob1 == ob2) || (ob1->type != ob2->type))	184	if (ob1 == ob2
		185	|| ob1->type != ob2->type
		186	|| ob1->speed != ob2->speed
		187	|| ob1->value != ob2->value
		188	|| ob1->name != ob2->name)
200	return 0;	189	return 0;
201		190
202	if (ob1->speed != ob2->speed)	191	/* Do not merge objects if nrof would overflow. First part checks
		192	* for unsigned overflow (2c), second part checks whether the result
		193	* would fit into a 32 bit signed int, which is often used to hold
		194	* nrof values.
		195	*/
		196	if (~ob1->nrof < ob2->nrof || ob1->nrof + ob2->nrof > (1UL << 31))
203	return 0;	197	return 0;
204		198
205	/* Do not merge objects if nrof would overflow. We use 1UL<<31 since that
206	* value could not be stored in a sint32 (which unfortunately sometimes is
207	* used to store nrof).
208	*/
209	if (ob1->nrof + ob2->nrof >= 1UL << 31)
210	return 0;
211
212	/* If the objects have been identified, set the BEEN_APPLIED flag.	199	/* If the objects have been identified, set the BEEN_APPLIED flag.
213	* This is to the comparison of the flags below will be OK. We	200	* This is to the comparison of the flags below will be OK. We
214	* just can't ignore the been applied or identified flags, as they	201	* just can't ignore the been applied or identified flags, as they
215	* are not equal - just if it has been identified, the been_applied	202	* are not equal - just if it has been identified, the been_applied
216	* flags lose any meaning.	203	* flags lose any meaning.
217	*/	204	*/
218	if (QUERY_FLAG (ob1, FLAG_IDENTIFIED))	205	if (QUERY_FLAG (ob1, FLAG_IDENTIFIED))
219	SET_FLAG (ob1, FLAG_BEEN_APPLIED);	206	SET_FLAG (ob1, FLAG_BEEN_APPLIED);
220		207
221	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))	208	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))
222	SET_FLAG (ob2, FLAG_BEEN_APPLIED);	209	SET_FLAG (ob2, FLAG_BEEN_APPLIED);
223		210
224		211	if (ob1->arch->archname != ob2->arch->archname
225	/* the 0x400000 on flags2 is FLAG_INV_LOCK. I don't think something
226	* being locked in inventory should prevent merging.
227	* 0x4 in flags3 is CLIENT_SENT
228	*/
229	if ((ob1->arch != ob2->arch) ||
230	(ob1->flags[0] != ob2->flags[0]) ||
231	(ob1->flags[1] != ob2->flags[1]) ||
232	((ob1->flags[2] & ~0x400000) != (ob2->flags[2] & ~0x400000)) ||
233	((ob1->flags[3] & ~0x4) != (ob2->flags[3] & ~0x4)) ||
234	(ob1->name != ob2->name) ||	212	|| ob1->name != ob2->name
235	(ob1->title != ob2->title) ||	213	|| ob1->title != ob2->title
236	(ob1->msg != ob2->msg) ||	214	|| ob1->msg != ob2->msg
237	(ob1->weight != ob2->weight) ||	215	|| ob1->weight != ob2->weight
238	(memcmp (&ob1->resist, &ob2->resist, sizeof (ob1->resist)) != 0) ||
239	(memcmp (&ob1->stats, &ob2->stats, sizeof (ob1->stats)) != 0) ||
240	(ob1->attacktype != ob2->attacktype) ||	216	|| ob1->attacktype != ob2->attacktype
241	(ob1->magic != ob2->magic) ||	217	|| ob1->magic != ob2->magic
242	(ob1->slaying != ob2->slaying) ||	218	|| ob1->slaying != ob2->slaying
243	(ob1->skill != ob2->skill) ||	219	|| ob1->skill != ob2->skill
244	(ob1->value != ob2->value) ||	220	|| ob1->value != ob2->value
245	(ob1->animation_id != ob2->animation_id) ||	221	|| ob1->animation_id != ob2->animation_id
		222	|| (ob1->face != ob2->face && !ob1->animation_id) // face and animation are dependent on each other
246	(ob1->client_type != ob2->client_type) ||	223	|| ob1->client_type != ob2->client_type
247	(ob1->materialname != ob2->materialname) ||	224	|| ob1->materialname != ob2->materialname
248	(ob1->lore != ob2->lore) ||	225	|| ob1->lore != ob2->lore
249	(ob1->subtype != ob2->subtype) ||	226	|| ob1->subtype != ob2->subtype
250	(ob1->move_type != ob2->move_type) ||	227	|| ob1->move_type != ob2->move_type
251	(ob1->move_block != ob2->move_block) ||	228	|| ob1->move_block != ob2->move_block
252	(ob1->move_allow != ob2->move_allow) ||	229	|| ob1->move_allow != ob2->move_allow
253	(ob1->move_on != ob2->move_on) ||	230	|| ob1->move_on != ob2->move_on
254	(ob1->move_off != ob2->move_off) || (ob1->move_slow != ob2->move_slow) || (ob1->move_slow_penalty != ob2->move_slow_penalty))	231	|| ob1->move_off != ob2->move_off
		232	|| ob1->move_slow != ob2->move_slow
		233	|| ob1->move_slow_penalty != ob2->move_slow_penalty
		234	|| memcmp (&ob1->resist, &ob2->resist, sizeof (ob1->resist))
		235	|| memcmp (&ob1->stats , &ob2->stats , sizeof (ob1->stats)))
255	return 0;	236	return 0;
256		237
		238	if ((ob1->flag ^ ob2->flag)
		239	.reset (FLAG_INV_LOCKED)
		240	.reset (FLAG_CLIENT_SENT)
		241	.reset (FLAG_REMOVED)
		242	.any ())
		243	return 0;
		244
257	/* This is really a spellbook check - really, we should	245	/* This is really a spellbook check - we should in general
258	* check all objects in the inventory.	246	* not merge objects with real inventories, as splitting them
		247	* is hard.
259	*/	248	*/
260	if (ob1->inv || ob2->inv)	249	if (ob1->inv || ob2->inv)
261	{	250	{
262	/* if one object has inventory but the other doesn't, not equiv */
263	if ((ob1->inv && !ob2->inv) || (ob2->inv && !ob1->inv))
264	return 0;
265
266	/* Now check to see if the two inventory objects could merge */
267	if (!CAN_MERGE (ob1->inv, ob2->inv))	251	if (!(ob1->inv && ob2->inv))
268	return 0;	252	return 0; /* inventories differ in length */
		253
		254	if (ob1->inv->below || ob2->inv->below)
		255	return 0; /* more than one object in inv */
		256
		257	if (!object::can_merge (ob1->inv, ob2->inv))
		258	return 0; /* inventory objects differ */
269		259
270	/* inventory ok - still need to check rest of this object to see	260	/* inventory ok - still need to check rest of this object to see
271	* if it is valid.	261	* if it is valid.
272	*/	262	*/
273	}	263	}
…		…
281		271
282	/* Note sure why the following is the case - either the object has to	272	/* Note sure why the following is the case - either the object has to
283	* be animated or have a very low speed. Is this an attempted monster	273	* be animated or have a very low speed. Is this an attempted monster
284	* check?	274	* check?
285	*/	275	*/
286	if (!QUERY_FLAG (ob1, FLAG_ANIMATE) && FABS ((ob1)->speed) > MIN_ACTIVE_SPEED)	276	if (!QUERY_FLAG (ob1, FLAG_ANIMATE) && ob1->has_active_speed ())
287	return 0;	277	return 0;
288		278
289	switch (ob1->type)	279	switch (ob1->type)
290	{	280	{
291	case SCROLL:	281	case SCROLL:
292	if (ob1->level != ob2->level)	282	if (ob1->level != ob2->level)
293	return 0;	283	return 0;
294	break;	284	break;
295	}	285	}
296		286
297	if (ob1->key_values != NULL || ob2->key_values != NULL)	287	if (ob1->key_values || ob2->key_values)
298	{	288	{
299	/* At least one of these has key_values. */	289	/* At least one of these has key_values. */
300	if ((ob1->key_values == NULL) != (ob2->key_values == NULL))	290	if ((!ob1->key_values) != (!ob2->key_values))
301	/* One has fields, but the other one doesn't. */	291	return 0; /* One has fields, but the other one doesn't. */
		292
		293	if (!compare_ob_value_lists (ob1, ob2))
302	return 0;	294	return 0;
303	else if (!compare_ob_value_lists (ob1, ob2))
304	return 0;
305	}	295	}
306		296
307	//TODO: generate an event or call into perl for additional checks
308	if (ob1->self || ob2->self)	297	if (ob1->self || ob2->self)
309	{	298	{
310	ob1->optimise ();	299	ob1->optimise ();
311	ob2->optimise ();	300	ob2->optimise ();
312		301
313	if (ob1->self || ob2->self)	302	if (ob1->self || ob2->self)
		303	{
		304	int k1 = ob1->self ? HvTOTALKEYS (ob1->self) : 0;
		305	int k2 = ob2->self ? HvTOTALKEYS (ob2->self) : 0;
		306
		307	if (k1 != k2)
314	return 0;	308	return 0;
		309
		310	if (k1 == 0)
		311	return 1;
		312
		313	if (!cfperl_can_merge (ob1, ob2))
		314	return 0;
		315	}
315	}	316	}
316		317
317	/* Everything passes, must be OK. */	318	/* Everything passes, must be OK. */
318	return 1;	319	return 1;
319	}	320	}
320		321
		322	// find player who can see this object
		323	object *
		324	object::visible_to () const
		325	{
		326	if (client_visible () && !flag [FLAG_REMOVED])
		327	{
		328	// see if we are in a container of sorts
		329	if (env)
		330	{
		331	// the player inventory itself is always visible
		332	if (env->type == PLAYER)
		333	return env;
		334
		335	// else a player could have our env open
		336	object *envest = env->outer_env ();
		337
		338	// the player itself is always on a map, so we will find him here
		339	// even if our inv is in a player.
		340	if (envest->is_on_map ())
		341	if (object *pl = envest->ms ().player ())
		342	if (pl->container == env)
		343	return pl;
		344	}
		345	else
		346	{
		347	// maybe there is a player standing on the same mapspace
		348	// this will catch the case where "this" is a player
		349	if (object *pl = ms ().player ())
		350	if ((!pl->container && pl->contr->ns && !pl->contr->ns->update_look)
		351	|| this == pl->container)
		352	return pl;
		353	}
		354	}
		355
		356	return 0;
		357	}
		358
		359	// adjust weight per container type ("of holding")
		360	static sint32
		361	weight_adjust_for (object *op, sint32 weight)
		362	{
		363	return op->type == CONTAINER
		364	? lerp (weight, 0, 100, 0, 100 - op->stats.Str)
		365	: weight;
		366	}
		367
321	/*	368	/*
		369	* adjust_weight(object, weight) adds the specified weight to an object,
		370	* and also updates how much the environment(s) is/are carrying.
		371	*/
		372	static void
		373	adjust_weight (object *op, sint32 weight)
		374	{
		375	while (op)
		376	{
		377	// adjust by actual difference to account for rounding errors
		378	// i.e. (w2 - w1) / f != w2 / f - w1 / f and the latter is correct
		379	weight = weight_adjust_for (op, op->carrying)
		380	- weight_adjust_for (op, op->carrying - weight);
		381
		382	if (!weight)
		383	return;
		384
		385	op->carrying += weight;
		386
		387	if (object *pl = op->visible_to ())
		388	if (pl != op) // player is handled lazily
		389	esrv_update_item (UPD_WEIGHT, pl, op);
		390
		391	op = op->env;
		392	}
		393	}
		394
		395	/*
322	* sum_weight() is a recursive function which calculates the weight	396	* this is a recursive function which calculates the weight
323	* an object is carrying. It goes through in figures out how much	397	* an object is carrying. It goes through op and figures out how much
324	* containers are carrying, and sums it up.	398	* containers are carrying, and sums it up.
325	*/	399	*/
326	long	400	void
327	sum_weight (object *op)	401	object::update_weight ()
328	{	402	{
329	long sum;	403	sint32 sum = 0;
330	object *inv;
331		404
332	for (sum = 0, inv = op->inv; inv != NULL; inv = inv->below)	405	for (object *op = inv; op; op = op->below)
333	{	406	{
334	if (inv->inv)	407	if (op->inv)
335	sum_weight (inv);	408	op->update_weight ();
336	sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1);	409
		410	sum += op->total_weight ();
		411	}
		412
		413	sum = weight_adjust_for (this, sum);
		414
		415	if (sum != carrying)
337	}	416	{
338
339	if (op->type == CONTAINER && op->stats.Str)
340	sum = (sum * (100 - op->stats.Str)) / 100;
341
342	if (op->carrying != sum)
343	op->carrying = sum;	417	carrying = sum;
344		418
345	return sum;	419	if (object *pl = visible_to ())
346	}	420	if (pl != this) // player is handled lazily
347		421	esrv_update_item (UPD_WEIGHT, pl, this);
348	/**
349	* Return the outermost environment object for a given object.
350	*/
351
352	object *
353	object_get_env_recursive (object *op)
354	{
355	while (op->env != NULL)
356	op = op->env;
357	return op;
358	}
359
360	/*
361	* Eneq(@csd.uu.se): Since we can have items buried in a character we need
362	* a better check. We basically keeping traversing up until we can't
363	* or find a player.
364	*/
365
366	object *
367	is_player_inv (object *op)
368	{
369	for (; op != NULL && op->type != PLAYER; op = op->env)
370	if (op->env == op)
371	op->env = NULL;
372	return op;
373	}
374
375	/*
376	* Used by: Crossedit: dump. Server DM commands: dumpbelow, dump.
377	* Some error messages.
378	* The result of the dump is stored in the static global errmsg array.
379	*/
380
381	void
382	dump_object2 (object *op)
383	{
384	errmsg[0] = 0;
385	return;
386	//TODO//D#d#
387	#if 0
388	char *cp;
389
390	/* object *tmp;*/
391
392	if (op->arch != NULL)
393	{	422	}
394	strcat (errmsg, "arch ");
395	strcat (errmsg, op->arch->name ? op->arch->name : "(null)");
396	strcat (errmsg, "\n");
397	if ((cp = get_ob_diff (op, &empty_archetype->clone)) != NULL)
398	strcat (errmsg, cp);
399	# if 0
400	/* Don't dump player diffs - they are too long, mostly meaningless, and
401	* will overflow the buffer.
402	* Changed so that we don't dump inventory either. This may
403	* also overflow the buffer.
404	*/
405	if (op->type != PLAYER && (cp = get_ob_diff (op, &empty_archetype->clone)) != NULL)
406	strcat (errmsg, cp);
407	for (tmp = op->inv; tmp; tmp = tmp->below)
408	dump_object2 (tmp);
409	# endif
410	strcat (errmsg, "end\n");
411	}
412	else
413	{
414	strcat (errmsg, "Object ");
415	if (op->name == NULL)
416	strcat (errmsg, "(null)");
417	else
418	strcat (errmsg, op->name);
419	strcat (errmsg, "\n");
420	# if 0
421	if ((cp = get_ob_diff (op, &empty_archetype->clone)) != NULL)
422	strcat (errmsg, cp);
423	for (tmp = op->inv; tmp; tmp = tmp->below)
424	dump_object2 (tmp);
425	# endif
426	strcat (errmsg, "end\n");
427	}
428	#endif
429	}	423	}
430		424
431	/*	425	/*
432	* Dumps an object. Returns output in the static global errmsg array.	426	* Used by: Server DM commands: dumpbelow, dump. Some error messages.
433	*/	427	*/
434		428	char *
435	void
436	dump_object (object *op)	429	dump_object (object *op)
437	{	430	{
438	if (op == NULL)	431	if (!op)
439	{	432	return strdup ("[NULLOBJ]");
440	strcpy (errmsg, "[NULL pointer]");
441	return;
442	}
443	errmsg[0] = '\0';
444	dump_object2 (op);
445	}
446		433
447	void	434	object_freezer freezer;
448	dump_all_objects (void)	435	op->write (freezer);
449	{	436	return freezer.as_string ();
450	object *op;
451
452	for (op = objects; op != NULL; op = op->next)
453	{
454	dump_object (op);
455	fprintf (logfile, "Object %d\n:%s\n", op->count, errmsg);
456	}
457	}	437	}
458		438
459	/*	439	/*
460	* get_nearest_part(multi-object, object 2) returns the part of the	440	* get_nearest_part(multi-object, object 2) returns the part of the
461	* multi-object 1 which is closest to the second object.	441	* multi-object 1 which is closest to the second object.
462	* If it's not a multi-object, it is returned.	442	* If it's not a multi-object, it is returned.
463	*/	443	*/
464
465	object *	444	object *
466	get_nearest_part (object *op, const object *pl)	445	get_nearest_part (object *op, const object *pl)
467	{	446	{
468	object *tmp, *closest;	447	object *tmp, *closest;
469	int last_dist, i;	448	int last_dist, i;
470		449
471	if (op->more == NULL)	450	if (!op->more)
472	return op;	451	return op;
		452
473	for (last_dist = distance (op, pl), closest = op, tmp = op->more; tmp != NULL; tmp = tmp->more)	453	for (last_dist = distance (op, pl), closest = op, tmp = op->more;
		454	tmp;
		455	tmp = tmp->more)
474	if ((i = distance (tmp, pl)) < last_dist)	456	if ((i = distance (tmp, pl)) < last_dist)
475	closest = tmp, last_dist = i;	457	closest = tmp, last_dist = i;
		458
476	return closest;	459	return closest;
477	}	460	}
478		461
479	/*	462	/*
480	* Returns the object which has the count-variable equal to the argument.	463	* Returns the object which has the count-variable equal to the argument.
		464	* VERRRY slow.
481	*/	465	*/
482
483	object *	466	object *
484	find_object (tag_t i)	467	find_object (tag_t i)
485	{	468	{
486	object *op;	469	for_all_objects (op)
487
488	for (op = objects; op != NULL; op = op->next)
489	if (op->count == i)	470	if (op->count == i)
490	break;
491	return op;	471	return op;
		472
		473	return 0;
492	}	474	}
493		475
494	/*	476	/*
495	* Returns the first object which has a name equal to the argument.	477	* Returns the first object which has a name equal to the argument.
496	* Used only by the patch command, but not all that useful.	478	* Used only by the patch command, but not all that useful.
497	* Enables features like "patch <name-of-other-player> food 999"	479	* Enables features like "patch <name-of-other-player> food 999"
498	*/	480	*/
499
500	object *	481	object *
501	find_object_name (const char *str)	482	find_object_name (const char *str)
502	{	483	{
503	shstr_cmp str_ (str);	484	shstr_cmp str_ (str);
504	object *op;
505		485
506	for (op = objects; op != NULL; op = op->next)	486	if (str_)
		487	for_all_objects (op)
507	if (op->name == str_)	488	if (op->name == str_)
508	break;	489	return op;
509		490
510	return op;	491	return 0;
511	}
512
513	void
514	free_all_object_data ()
515	{
516	LOG (llevDebug, "%d allocated objects\n", nrofallocobjects);
517	}	492	}
518		493
519	/*	494	/*
520	* Sets the owner and sets the skill and exp pointers to owner's current	495	* Sets the owner and sets the skill and exp pointers to owner's current
521	* skill and experience objects.	496	* skill and experience objects.
		497	* ACTUALLY NO! investigate! TODO
522	*/	498	*/
523	void	499	void
524	object::set_owner (object *owner)	500	object::set_owner (object *owner)
525	{	501	{
		502	// allow objects which own objects
526	if (!owner)	503	if (owner)
527	return;
528
529	/* next line added to allow objects which own objects */
530	/* Add a check for ownercounts in here, as I got into an endless loop
531	* with the fireball owning a poison cloud which then owned the
532	* fireball. I believe that was caused by one of the objects getting
533	* freed and then another object replacing it. Since the ownercounts
534	* didn't match, this check is valid and I believe that cause is valid.
535	*/
536	while (owner->owner)	504	while (owner->owner)
537	owner = owner->owner;	505	owner = owner->owner;
		506
		507	if (flag [FLAG_FREED])
		508	{
		509	LOG (llevError | logBacktrace, "tried to set owner of %s to %s\n", debug_desc (), owner->debug_desc ());
		510	return;
		511	}
538		512
539	this->owner = owner;	513	this->owner = owner;
		514	}
		515
		516	int
		517	object::slottype () const
		518	{
		519	if (type == SKILL)
		520	{
		521	if (IS_COMBAT_SKILL (subtype)) return slot_combat;
		522	if (IS_RANGED_SKILL (subtype)) return slot_ranged;
		523	}
		524	else
		525	{
		526	if (slot [body_combat].info) return slot_combat;
		527	if (slot [body_range ].info) return slot_ranged;
		528	}
		529
		530	return slot_none;
		531	}
		532
		533	bool
		534	object::change_weapon (object *ob)
		535	{
		536	if (current_weapon == ob)
		537	return true;
		538
		539	if (chosen_skill)
		540	chosen_skill->flag [FLAG_APPLIED] = false;
		541
		542	current_weapon = ob;
		543	chosen_skill = !ob || ob->type == SKILL ? ob : find_skill_by_name (this, ob->skill);
		544
		545	if (chosen_skill)
		546	chosen_skill->flag [FLAG_APPLIED] = true;
		547
		548	update_stats ();
		549
		550	if (ob)
		551	{
		552	// now check wether any body locations became invalid, in which case
		553	// we cannot apply the weapon at the moment.
		554	for (int i = 0; i < NUM_BODY_LOCATIONS; ++i)
		555	if (slot[i].used < 0)
		556	{
		557	current_weapon = chosen_skill = 0;
		558	update_stats ();
		559
		560	new_draw_info_format (NDI_UNIQUE, 0, this,
		561	"You try to balance all your items at once, "
		562	"but the %s is just too much for your body. "
		563	"[You need to unapply some items first.]", &ob->name);
		564	return false;
		565	}
		566
		567	//new_draw_info_format (NDI_UNIQUE, 0, this, "You switch to your %s.", &ob->name);
		568	}
		569	else
		570	;//new_draw_info_format (NDI_UNIQUE, 0, this, "You unwield your weapons.");
		571
		572	if (ob && !ob->flag [FLAG_APPLIED] && ob->type != SPELL)
		573	{
		574	LOG (llevError | logBacktrace, "%s changed to unapplied weapon %s",
		575	&name, ob->debug_desc ());
		576	return false;
		577	}
		578
		579	return true;
540	}	580	}
541		581
542	/* Zero the key_values on op, decrementing the shared-string	582	/* Zero the key_values on op, decrementing the shared-string
543	* refcounts and freeing the links.	583	* refcounts and freeing the links.
544	*/	584	*/
545	static void	585	static void
546	free_key_values (object *op)	586	free_key_values (object *op)
547	{	587	{
548	for (key_value *i = op->key_values; i != 0;)	588	for (key_value *i = op->key_values; i; )
549	{	589	{
550	key_value *next = i->next;	590	key_value *next = i->next;
551	delete i;	591	delete i;
552		592
553	i = next;	593	i = next;
554	}	594	}
555		595
556	op->key_values = 0;	596	op->key_values = 0;
557	}	597	}
558		598
559	void object::clear ()
560	{
561	attachable_base::clear ();
562
563	free_key_values (this);
564
565	owner = 0;
566	name = 0;
567	name_pl = 0;
568	title = 0;
569	race = 0;
570	slaying = 0;
571	skill = 0;
572	msg = 0;
573	lore = 0;
574	custom_name = 0;
575	materialname = 0;
576	contr = 0;
577	below = 0;
578	above = 0;
579	inv = 0;
580	container = 0;
581	env = 0;
582	more = 0;
583	head = 0;
584	map = 0;
585	active_next = 0;
586	active_prev = 0;
587
588	memset (static_cast<object_pod *>(this), 0, sizeof (object_pod));
589
590	SET_FLAG (this, FLAG_REMOVED);
591
592	/* What is not cleared is next, prev, and count */
593
594	expmul = 1.0;
595	face = blank_face;
596
597	if (settings.casting_time)
598	casting_time = -1;
599	}
600
601	void object::clone (object *destination)
602	{
603	*(object_copy *)destination = *this;
604	*(object_pod *)destination = *this;
605
606	if (self || cb)
607	INVOKE_OBJECT (CLONE, this, ARG_OBJECT (destination));
608	}
609
610	/*	599	/*
611	* copy object first frees everything allocated by the second object,	600	* copy_to first frees everything allocated by the dst object,
612	* and then copies the contends of the first object into the second	601	* and then copies the contents of itself into the second
613	* object, allocating what needs to be allocated. Basically, any	602	* object, allocating what needs to be allocated. Basically, any
614	* data that is malloc'd needs to be re-malloc/copied. Otherwise,	603	* data that is malloc'd needs to be re-malloc/copied. Otherwise,
615	* if the first object is freed, the pointers in the new object	604	* if the first object is freed, the pointers in the new object
616	* will point at garbage.	605	* will point at garbage.
617	*/	606	*/
618	void	607	void
619	copy_object (object *op2, object *op)	608	object::copy_to (object *dst)
620	{	609	{
621	bool is_freed = QUERY_FLAG (op, FLAG_FREED);	610	dst->remove ();
622	bool is_removed = QUERY_FLAG (op, FLAG_REMOVED);	611	*(object_copy *)dst = *this;
623		612	dst->flag [FLAG_REMOVED] = true;
624	op2->clone (op);
625
626	if (is_freed)
627	SET_FLAG (op, FLAG_FREED);
628	if (is_removed)
629	SET_FLAG (op, FLAG_REMOVED);
630
631	if (op2->speed < 0)
632	op->speed_left = op2->speed_left - RANDOM () % 200 / 100.0;
633		613
634	/* Copy over key_values, if any. */	614	/* Copy over key_values, if any. */
635	if (op2->key_values)	615	if (key_values)
636	{	616	{
637	key_value *tail = 0;	617	key_value *tail = 0;
638	key_value *i;
639
640	op->key_values = 0;	618	dst->key_values = 0;
641		619
642	for (i = op2->key_values; i; i = i->next)	620	for (key_value *i = key_values; i; i = i->next)
643	{	621	{
644	key_value *new_link = new key_value;	622	key_value *new_link = new key_value;
645		623
646	new_link->next = 0;	624	new_link->next = 0;
647	new_link->key = i->key;	625	new_link->key = i->key;
648	new_link->value = i->value;	626	new_link->value = i->value;
649		627
650	/* Try and be clever here, too. */	628	/* Try and be clever here, too. */
651	if (!op->key_values)	629	if (!dst->key_values)
652	{	630	{
653	op->key_values = new_link;	631	dst->key_values = new_link;
654	tail = new_link;	632	tail = new_link;
655	}	633	}
656	else	634	else
657	{	635	{
658	tail->next = new_link;	636	tail->next = new_link;
659	tail = new_link;	637	tail = new_link;
660	}	638	}
661	}	639	}
662	}	640	}
663		641
664	update_ob_speed (op);	642	if (speed < 0)
		643	dst->speed_left -= rndm ();
		644
		645	dst->set_speed (dst->speed);
		646	}
		647
		648	void
		649	object::instantiate ()
		650	{
		651	if (!uuid.seq) // HACK
		652	uuid = UUID::gen ();
		653
		654	speed_left = -0.1f;
		655	/* copy the body_info to the body_used - this is only really
		656	* need for monsters, but doesn't hurt to do it for everything.
		657	* by doing so, when a monster is created, it has good starting
		658	* values for the body_used info, so when items are created
		659	* for it, they can be properly equipped.
		660	*/
		661	for (int i = NUM_BODY_LOCATIONS; i--; )
		662	slot[i].used = slot[i].info;
		663
		664	attachable::instantiate ();
		665	}
		666
		667	object *
		668	object::clone ()
		669	{
		670	object *neu = create ();
		671	copy_to (neu);
		672	neu->map = map; // not copied by copy_to
		673	return neu;
665	}	674	}
666		675
667	/*	676	/*
668	* If an object with the IS_TURNABLE() flag needs to be turned due	677	* If an object with the IS_TURNABLE() flag needs to be turned due
669	* to the closest player being on the other side, this function can	678	* to the closest player being on the other side, this function can
670	* be called to update the face variable, _and_ how it looks on the map.	679	* be called to update the face variable, _and_ how it looks on the map.
671	*/	680	*/
672
673	void	681	void
674	update_turn_face (object *op)	682	update_turn_face (object *op)
675	{	683	{
676	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || op->arch == NULL)	684	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || !op->arch)
677	return;	685	return;
		686
678	SET_ANIMATION (op, op->direction);	687	SET_ANIMATION (op, op->direction);
679	update_object (op, UP_OBJ_FACE);	688	update_object (op, UP_OBJ_FACE);
680	}	689	}
681		690
682	/*	691	/*
683	* Updates the speed of an object. If the speed changes from 0 to another	692	* Updates the speed of an object. If the speed changes from 0 to another
684	* value, or vice versa, then add/remove the object from the active list.	693	* value, or vice versa, then add/remove the object from the active list.
685	* This function needs to be called whenever the speed of an object changes.	694	* This function needs to be called whenever the speed of an object changes.
686	*/	695	*/
687	void	696	void
688	update_ob_speed (object *op)	697	object::set_speed (float speed)
689	{	698	{
690	extern int arch_init;	699	if (flag [FLAG_FREED] && speed)
691
692	/* No reason putting the archetypes objects on the speed list,
693	* since they never really need to be updated.
694	*/
695
696	if (QUERY_FLAG (op, FLAG_FREED) && op->speed)
697	{	700	{
698	LOG (llevError, "Object %s is freed but has speed.\n", &op->name);	701	LOG (llevError, "Object %s is freed but has speed.\n", &name);
699	#ifdef MANY_CORES
700	abort ();
701	#else
702	op->speed = 0;	702	speed = 0;
703	#endif
704	}
705
706	if (arch_init)
707	return;
708
709	if (FABS (op->speed) > MIN_ACTIVE_SPEED)
710	{	703	}
711	/* If already on active list, don't do anything */
712	if (op->active_next || op->active_prev || op == active_objects)
713	return;
714		704
715	/* process_events() expects us to insert the object at the beginning	705	this->speed = speed;
716	* of the list. */
717	op->active_next = active_objects;
718		706
719	if (op->active_next != NULL)	707	if (has_active_speed ())
720	op->active_next->active_prev = op;	708	activate ();
721
722	active_objects = op;
723	}
724	else	709	else
725	{	710	deactivate ();
726	/* If not on the active list, nothing needs to be done */
727	if (!op->active_next && !op->active_prev && op != active_objects)
728	return;
729
730	if (op->active_prev == NULL)
731	{
732	active_objects = op->active_next;
733
734	if (op->active_next != NULL)
735	op->active_next->active_prev = NULL;
736	}
737	else
738	{
739	op->active_prev->active_next = op->active_next;
740
741	if (op->active_next)
742	op->active_next->active_prev = op->active_prev;
743	}
744
745	op->active_next = NULL;
746	op->active_prev = NULL;
747	}
748	}	711	}
749		712
750	/* This function removes object 'op' from the list of active
751	* objects.
752	* This should only be used for style maps or other such
753	* reference maps where you don't want an object that isn't
754	* in play chewing up cpu time getting processed.
755	* The reverse of this is to call update_ob_speed, which
756	* will do the right thing based on the speed of the object.
757	*/
758	void
759	remove_from_active_list (object *op)
760	{
761	/* If not on the active list, nothing needs to be done */
762	if (!op->active_next && !op->active_prev && op != active_objects)
763	return;
764
765	if (op->active_prev == NULL)
766	{
767	active_objects = op->active_next;
768	if (op->active_next != NULL)
769	op->active_next->active_prev = NULL;
770	}
771	else
772	{
773	op->active_prev->active_next = op->active_next;
774	if (op->active_next)
775	op->active_next->active_prev = op->active_prev;
776	}
777	op->active_next = NULL;
778	op->active_prev = NULL;
779	}
780
781	/*	713	/*
782	* update_object() updates the array which represents the map.	714	* update_object() updates the the map.
783	* It takes into account invisible objects (and represent squares covered	715	* It takes into account invisible objects (and represent squares covered
784	* by invisible objects by whatever is below them (unless it's another	716	* by invisible objects by whatever is below them (unless it's another
785	* invisible object, etc...)	717	* invisible object, etc...)
786	* If the object being updated is beneath a player, the look-window	718	* If the object being updated is beneath a player, the look-window
787	* of that player is updated (this might be a suboptimal way of	719	* of that player is updated (this might be a suboptimal way of
788	* updating that window, though, since update_object() is called _often_)	720	* updating that window, though, since update_object() is called _often_)
789	*	721	*
790	* action is a hint of what the caller believes need to be done.	722	* action is a hint of what the caller believes need to be done.
791	* For example, if the only thing that has changed is the face (due to
792	* an animation), we don't need to call update_position until that actually
793	* comes into view of a player. OTOH, many other things, like addition/removal
794	* of walls or living creatures may need us to update the flags now.
795	* current action are:	723	* current action are:
796	* UP_OBJ_INSERT: op was inserted	724	* UP_OBJ_INSERT: op was inserted
797	* UP_OBJ_REMOVE: op was removed	725	* UP_OBJ_REMOVE: op was removed
798	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update	726	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update
799	* as that is easier than trying to look at what may have changed.	727	* as that is easier than trying to look at what may have changed.
800	* UP_OBJ_FACE: only the objects face has changed.	728	* UP_OBJ_FACE: only the objects face has changed.
801	*/	729	*/
802
803	void	730	void
804	update_object (object *op, int action)	731	update_object (object *op, int action)
805	{	732	{
806	int update_now = 0, flags;	733	if (!op)
807	MoveType move_on, move_off, move_block, move_slow;
808
809	if (op == NULL)
810	{	734	{
811	/* this should never happen */	735	/* this should never happen */
812	LOG (llevDebug, "update_object() called for NULL object.\n");	736	LOG (llevError | logBacktrace, "update_object() called for NULL object.\n");
813	return;	737	return;
814	}	738	}
815		739
816	if (op->env != NULL)	740	if (!op->is_on_map ())
817	{	741	{
818	/* Animation is currently handled by client, so nothing	742	/* Animation is currently handled by client, so nothing
819	* to do in this case.	743	* to do in this case.
820	*/	744	*/
821	return;	745	return;
822	}	746	}
823		747
824	/* If the map is saving, don't do anything as everything is
825	* going to get freed anyways.
826	*/
827	if (!op->map || op->map->in_memory == MAP_SAVING)
828	return;
829
830	/* make sure the object is within map boundaries */	748	/* make sure the object is within map boundaries */
831	if (op->x < 0 || op->x >= MAP_WIDTH (op->map) || op->y < 0 || op->y >= MAP_HEIGHT (op->map))	749	if (op->x < 0 || op->x >= op->map->width || op->y < 0 || op->y >= op->map->height)
832	{	750	{
833	LOG (llevError, "update_object() called for object out of map!\n");	751	LOG (llevError, "update_object() called for object out of map!\n");
834	#ifdef MANY_CORES	752	#ifdef MANY_CORES
835	abort ();	753	abort ();
836	#endif	754	#endif
837	return;	755	return;
838	}	756	}
839		757
840	flags = GET_MAP_FLAGS (op->map, op->x, op->y);	758	mapspace &m = op->ms ();
841	SET_MAP_FLAGS (op->map, op->x, op->y, flags | P_NEED_UPDATE);
842	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);
843	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);
844	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);
845	move_off = GET_MAP_MOVE_OFF (op->map, op->x, op->y);
846		759
		760	if (!(m.flags_ & P_UPTODATE))
		761	/* nop */;
847	if (action == UP_OBJ_INSERT)	762	else if (action == UP_OBJ_INSERT)
848	{	763	{
		764	// this is likely overkill, TODO: revisit (schmorp)
849	if (QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(flags & P_BLOCKSVIEW))	765	if ((QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(m.flags_ & P_BLOCKSVIEW))
850	update_now = 1;
851
852	if (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(flags & P_NO_MAGIC))	766	|| (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(m.flags_ & P_NO_MAGIC))
853	update_now = 1;	767	|| (op->type == PLAYER && !(m.flags_ & P_PLAYER))
854		768	|| (op->type == SAFE_GROUND && !(m.flags_ & P_SAFE))
		769	|| (QUERY_FLAG (op, FLAG_ALIVE) && !(m.flags_ & P_IS_ALIVE))
855	if (QUERY_FLAG (op, FLAG_DAMNED) && !(flags & P_NO_CLERIC))	770	|| (QUERY_FLAG (op, FLAG_DAMNED) && !(m.flags_ & P_NO_CLERIC))
856	update_now = 1;
857
858	if (QUERY_FLAG (op, FLAG_ALIVE) && !(flags & P_IS_ALIVE))
859	update_now = 1;
860
861	if (op->type == SAFE_GROUND && !(flags & P_SAFE))
862	update_now = 1;
863
864	if ((move_on | op->move_on) != move_on)	771	|| (m.move_on | op->move_on ) != m.move_on
865	update_now = 1;
866
867	if ((move_off | op->move_off) != move_off)	772	|| (m.move_off | op->move_off ) != m.move_off
868	update_now = 1;	773	|| (m.move_slow | op->move_slow) != m.move_slow
869
870	/* This isn't perfect, but I don't expect a lot of objects to	774	/* This isn't perfect, but I don't expect a lot of objects to
871	* to have move_allow right now.	775	* to have move_allow right now.
872	*/	776	*/
873	if (((move_block | op->move_block) & ~op->move_allow) != move_block)	777	|| ((m.move_block | op->move_block) & ~op->move_allow) != m.move_block
874	update_now = 1;	778	|| 1) // the above is not strong enough a test to skip updating. los maybe? TODO (Schmorp)
875		779	m.flags_ = 0;
876	if ((move_slow | op->move_slow) != move_slow)
877	update_now = 1;
878	}	780	}
879	/* if the object is being removed, we can't make intelligent	781	/* if the object is being removed, we can't make intelligent
880	* decisions, because remove_ob can't really pass the object	782	* decisions, because remove_ob can't really pass the object
881	* that is being removed.	783	* that is being removed.
882	*/	784	*/
883	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)	785	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)
884	update_now = 1;	786	m.flags_ = 0;
885	else if (action == UP_OBJ_FACE)	787	else if (action == UP_OBJ_FACE)
886	/* Nothing to do for that case */ ;	788	/* Nothing to do for that case */ ;
887	else	789	else
888	LOG (llevError, "update_object called with invalid action: %d\n", action);	790	LOG (llevError, "update_object called with invalid action: %d\n", action);
889		791
890	if (update_now)
891	{
892	SET_MAP_FLAGS (op->map, op->x, op->y, flags | P_NO_ERROR | P_NEED_UPDATE);
893	update_position (op->map, op->x, op->y);
894	}
895
896	if (op->more != NULL)	792	if (op->more)
897	update_object (op->more, action);	793	update_object (op->more, action);
898	}
899
900	static unordered_vector<object *> mortals;
901
902	void object::free_mortals ()
903	{
904	for (unordered_vector<object *>::iterator i = mortals.begin (); i != mortals.end ();)
905	if ((*i)->refcnt)
906	++i; // further delay freeing
907	else
908	{
909	delete *i;
910	mortals.erase (i);
911	}
912
913	static int lastmortals = 0;//D
914
915	if (mortals.size() != lastmortals)//D
916	{
917	lastmortals = mortals.size ();//D
918	LOG (llevDebug, "%d objects in mortal queue\n", lastmortals);//D
919	}
920	}	794	}
921		795
922	object::object ()	796	object::object ()
923	{	797	{
924	SET_FLAG (this, FLAG_REMOVED);	798	SET_FLAG (this, FLAG_REMOVED);
…		…
927	face = blank_face;	801	face = blank_face;
928	}	802	}
929		803
930	object::~object ()	804	object::~object ()
931	{	805	{
		806	unlink ();
		807
932	free_key_values (this);	808	free_key_values (this);
933	}	809	}
934		810
		811	static int object_count;
		812
935	void object::link ()	813	void object::link ()
936	{	814	{
		815	assert (!index);//D
		816	uuid = UUID::gen ();
937	count = ++ob_count;	817	count = ++object_count;
938	uuid = gen_uuid ();
939		818
940	prev = 0;	819	refcnt_inc ();
941	next = objects;	820	objects.insert (this);
942
943	if (objects)
944	objects->prev = this;
945
946	objects = this;
947	}	821	}
948		822
949	void object::unlink ()	823	void object::unlink ()
950	{	824	{
951	//count = 0;//D	825	if (!index)
952	if (!prev && !next) return;//D	826	return;
953		827
954	if (this == objects)	828	objects.erase (this);
955	objects = next;	829	refcnt_dec ();
		830	}
956		831
957	/* Remove this object from the list of used objects */	832	void
958	if (prev) prev->next = next;	833	object::activate ()
959	if (next) next->prev = prev;	834	{
		835	/* If already on active list, don't do anything */
		836	if (active)
		837	return;
960		838
961	prev = 0;	839	if (has_active_speed ())
962	next = 0;	840	actives.insert (this);
		841	}
		842
		843	void
		844	object::activate_recursive ()
		845	{
		846	activate ();
		847
		848	for (object *op = inv; op; op = op->below)
		849	op->activate_recursive ();
		850	}
		851
		852	/* This function removes object 'op' from the list of active
		853	* objects.
		854	* This should only be used for style maps or other such
		855	* reference maps where you don't want an object that isn't
		856	* in play chewing up cpu time getting processed.
		857	* The reverse of this is to call update_ob_speed, which
		858	* will do the right thing based on the speed of the object.
		859	*/
		860	void
		861	object::deactivate ()
		862	{
		863	/* If not on the active list, nothing needs to be done */
		864	if (!active)
		865	return;
		866
		867	actives.erase (this);
		868	}
		869
		870	void
		871	object::deactivate_recursive ()
		872	{
		873	for (object *op = inv; op; op = op->below)
		874	op->deactivate_recursive ();
		875
		876	deactivate ();
		877	}
		878
		879	void
		880	object::set_flag_inv (int flag, int value)
		881	{
		882	for (object *op = inv; op; op = op->below)
		883	{
		884	op->flag [flag] = value;
		885	op->set_flag_inv (flag, value);
		886	}
		887	}
		888
		889	/*
		890	* Remove and free all objects in the inventory of the given object.
		891	* object.c ?
		892	*/
		893	void
		894	object::destroy_inv (bool drop_to_ground)
		895	{
		896	// need to check first, because the checks below might segfault
		897	// as we might be on an invalid mapspace and crossfire code
		898	// is too buggy to ensure that the inventory is empty.
		899	// corollary: if you create arrows etc. with stuff in its inventory,
		900	// cf will crash below with off-map x and y
		901	if (!inv)
		902	return;
		903
		904	/* Only if the space blocks everything do we not process -
		905	* if some form of movement is allowed, let objects
		906	* drop on that space.
		907	*/
		908	if (!drop_to_ground
		909	|| !map
		910	|| map->in_memory != MAP_ACTIVE
		911	|| map->no_drop
		912	|| ms ().move_block == MOVE_ALL)
		913	{
		914	while (inv)
		915	{
		916	inv->destroy_inv (false);
		917	inv->destroy ();
		918	}
		919	}
		920	else
		921	{ /* Put objects in inventory onto this space */
		922	while (inv)
		923	{
		924	object *op = inv;
		925
		926	if (op->flag [FLAG_STARTEQUIP]
		927	|| op->flag [FLAG_NO_DROP]
		928	|| op->type == RUNE
		929	|| op->type == TRAP
		930	|| op->flag [FLAG_IS_A_TEMPLATE]
		931	|| op->flag [FLAG_DESTROY_ON_DEATH])
		932	op->destroy (true);
		933	else
		934	map->insert (op, x, y);
		935	}
		936	}
963	}	937	}
964		938
965	object *object::create ()	939	object *object::create ()
966	{	940	{
967	object *op = new object;	941	object *op = new object;
968	op->link ();	942	op->link ();
969	return op;	943	return op;
970	}	944	}
971		945
972	/*	946	static struct freed_map : maptile
973	* free_object() frees everything allocated by an object, removes
974	* it from the list of used objects, and puts it on the list of
975	* free objects. The IS_FREED() flag is set in the object.
976	* The object must have been removed by remove_ob() first for
977	* this function to succeed.
978	*
979	* If free_inventory is set, free inventory as well. Else drop items in
980	* inventory to the ground.
981	*/
982	void object::free (bool free_inventory)
983	{	947	{
984	if (QUERY_FLAG (this, FLAG_FREED))	948	freed_map ()
		949	{
		950	path = "<freed objects map>";
		951	name = "/internal/freed_objects_map";
		952	width = 3;
		953	height = 3;
		954	no_drop = 1;
		955	no_reset = 1;
		956
		957	alloc ();
		958	in_memory = MAP_ACTIVE;
		959	}
		960
		961	~freed_map ()
		962	{
		963	destroy ();
		964	}
		965	} freed_map; // freed objects are moved here to avoid crashes
		966
		967	void
		968	object::do_destroy ()
		969	{
		970	if (flag [FLAG_IS_LINKED])
		971	remove_button_link (this);
		972
		973	if (flag [FLAG_FRIENDLY])
		974	remove_friendly_object (this);
		975
		976	remove ();
		977
		978	attachable::do_destroy ();
		979
		980	deactivate ();
		981	unlink ();
		982
		983	flag [FLAG_FREED] = 1;
		984
		985	// hack to ensure that freed objects still have a valid map
		986	map = &freed_map;
		987	x = 1;
		988	y = 1;
		989
		990	if (more)
		991	{
		992	more->destroy ();
		993	more = 0;
		994	}
		995
		996	head = 0;
		997
		998	// clear those pointers that likely might cause circular references
		999	owner = 0;
		1000	enemy = 0;
		1001	attacked_by = 0;
		1002	current_weapon = 0;
		1003	}
		1004
		1005	void
		1006	object::destroy (bool destroy_inventory)
		1007	{
		1008	if (destroyed ())
985	return;	1009	return;
986		1010
987	if (QUERY_FLAG (this, FLAG_FRIENDLY))	1011	if (!is_head () && !head->destroyed ())
988	remove_friendly_object (this);
989
990	if (!QUERY_FLAG (this, FLAG_REMOVED))
991	remove_ob (this);
992
993	SET_FLAG (this, FLAG_FREED);
994
995	if (more)
996	{
997	more->free (free_inventory);
998	more = 0;
999	}	1012	{
1000		1013	LOG (llevError | logBacktrace, "tried to destroy the tail of an object");
1001	if (inv)	1014	head->destroy (destroy_inventory);
		1015	return;
1002	{	1016	}
1003	/* Only if the space blocks everything do we not process -
1004	* if some form of movement is allowed, let objects
1005	* drop on that space.
1006	*/
1007	if (free_inventory || !map || map->in_memory != MAP_IN_MEMORY || GET_MAP_MOVE_BLOCK (map, x, y) == MOVE_ALL)
1008	{
1009	object *op = inv;
1010		1017
1011	while (op)	1018	destroy_inv (!destroy_inventory);
1012	{
1013	object *tmp = op->below;
1014	op->free (free_inventory);
1015	op = tmp;
1016	}
1017	}
1018	else
1019	{ /* Put objects in inventory onto this space */
1020	object *op = inv;
1021		1019
1022	while (op)	1020	if (is_head ())
1023	{	1021	if (sound_destroy)
1024	object *tmp = op->below;	1022	play_sound (sound_destroy);
		1023	else if (flag [FLAG_MONSTER])
		1024	play_sound (sound_find ("monster_destroy")); // quick hack, too lazy to create a generic mechanism
1025		1025
1026	remove_ob (op);	1026	attachable::destroy ();
1027
1028	if (QUERY_FLAG (op, FLAG_STARTEQUIP)
1029	|| QUERY_FLAG (op, FLAG_NO_DROP) || op->type == RUNE || op->type == TRAP || QUERY_FLAG (op, FLAG_IS_A_TEMPLATE))
1030	free_object (op);
1031	else
1032	{
1033	op->x = x;
1034	op->y = y;
1035	insert_ob_in_map (op, map, 0, 0); /* Insert in same map as the envir */
1036	}
1037
1038	op = tmp;
1039	}
1040	}
1041	}
1042
1043	owner = 0;
1044
1045	/* Remove object from the active list */
1046	speed = 0;
1047	update_ob_speed (this);
1048
1049	unlink ();
1050
1051	mortals.push_back (this);
1052	}	1027	}
1053		1028
1054	/*	1029	/* op->remove ():
1055	* sub_weight() recursively (outwards) subtracts a number from the
1056	* weight of an object (and what is carried by it's environment(s)).
1057	*/
1058
1059	void
1060	sub_weight (object *op, signed long weight)
1061	{
1062	while (op != NULL)
1063	{
1064	if (op->type == CONTAINER)
1065	{
1066	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1067	}
1068	op->carrying -= weight;
1069	op = op->env;
1070	}
1071	}
1072
1073	/* remove_ob(op):
1074	* This function removes the object op from the linked list of objects	1030	* This function removes the object op from the linked list of objects
1075	* which it is currently tied to. When this function is done, the	1031	* which it is currently tied to. When this function is done, the
1076	* object will have no environment. If the object previously had an	1032	* object will have no environment. If the object previously had an
1077	* environment, the x and y coordinates will be updated to	1033	* environment, the x and y coordinates will be updated to
1078	* the previous environment.	1034	* the previous environment.
1079	* Beware: This function is called from the editor as well!
1080	*/	1035	*/
1081
1082	void	1036	void
1083	remove_ob (object *op)	1037	object::do_remove ()
1084	{	1038	{
		1039	object *tmp, *last = 0;
1085	object *	1040	object *otmp;
1086	tmp, *
1087	last = NULL;
1088	object *
1089	otmp;
1090		1041
1091	tag_t	1042	if (flag [FLAG_REMOVED])
1092	tag;
1093	int
1094	check_walk_off;
1095	mapstruct *
1096	m;
1097
1098	sint16
1099	x,
1100	y;
1101
1102	if (QUERY_FLAG (op, FLAG_REMOVED))
1103	return;	1043	return;
1104		1044
1105	SET_FLAG (op, FLAG_REMOVED);	1045	INVOKE_OBJECT (REMOVE, this);
1106		1046
1107	if (op->more != NULL)	1047	flag [FLAG_REMOVED] = true;
1108	remove_ob (op->more);	1048
		1049	if (more)
		1050	more->remove ();
1109		1051
1110	/*	1052	/*
1111	* In this case, the object to be removed is in someones	1053	* In this case, the object to be removed is in someones
1112	* inventory.	1054	* inventory.
1113	*/	1055	*/
1114	if (op->env != NULL)	1056	if (env)
1115	{	1057	{
1116	if (op->nrof)	1058	flag [FLAG_REMOVED] = false; // hack around the issue of visible_to checking flag_removed
1117	sub_weight (op->env, op->weight * op->nrof);	1059	if (object *pl = visible_to ())
1118	else	1060	esrv_del_item (pl->contr, count);
1119	sub_weight (op->env, op->weight + op->carrying);	1061	flag [FLAG_REMOVED] = true; // hack around the issue of visible_to checking flag_removed
		1062
		1063	adjust_weight (env, -total_weight ());
		1064
		1065	/* we set up values so that it could be inserted into
		1066	* the map, but we don't actually do that - it is up
		1067	* to the caller to decide what we want to do.
		1068	*/
		1069	map = env->map;
		1070	x = env->x;
		1071	y = env->y;
		1072
		1073	// make sure cmov optimisation is applicable
		1074	*(above ? &above->below : &env->inv) = below;
		1075	*(below ? &below->above : &above ) = above; // &above is just a dummy
		1076
		1077	above = 0;
		1078	below = 0;
		1079	env = 0;
1120		1080
1121	/* NO_FIX_PLAYER is set when a great many changes are being	1081	/* NO_FIX_PLAYER is set when a great many changes are being
1122	* made to players inventory. If set, avoiding the call	1082	* made to players inventory. If set, avoiding the call
1123	* to save cpu time.	1083	* to save cpu time.
1124	*/	1084	*/
1125	if ((otmp = is_player_inv (op->env)) != NULL && otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))	1085	if ((otmp = in_player ()) && otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1126	fix_player (otmp);	1086	otmp->update_stats ();
1127
1128	if (op->above != NULL)
1129	op->above->below = op->below;
1130	else
1131	op->env->inv = op->below;
1132
1133	if (op->below != NULL)
1134	op->below->above = op->above;
1135
1136	/* we set up values so that it could be inserted into
1137	* the map, but we don't actually do that - it is up
1138	* to the caller to decide what we want to do.
1139	*/
1140	op->x = op->env->x, op->y = op->env->y;
1141	op->map = op->env->map;
1142	op->above = NULL, op->below = NULL;
1143	op->env = NULL;
1144	}	1087	}
1145	else if (op->map)	1088	else if (map)
1146	{	1089	{
1147	x = op->x;	1090	map->dirty = true;
1148	y = op->y;	1091	mapspace &ms = this->ms ();
1149	m = get_map_from_coord (op->map, &x, &y);
1150		1092
1151	if (!m)	1093	if (object *pl = ms.player ())
1152	{	1094	{
1153	LOG (llevError, "remove_ob called when object was on map but appears to not be within valid coordinates? %s (%d,%d)\n",	1095	if (type == PLAYER) // this == pl(!)
1154	op->map->path, op->x, op->y);
1155	/* in old days, we used to set x and y to 0 and continue.
1156	* it seems if we get into this case, something is probablye
1157	* screwed up and should be fixed.
1158	*/	1096	{
1159	abort ();	1097	// leaving a spot always closes any open container on the ground
		1098	if (container && !container->env)
		1099	// this causes spurious floorbox updates, but it ensures
		1100	// that the CLOSE event is being sent.
		1101	close_container ();
		1102
		1103	--map->players;
		1104	map->touch ();
		1105	}
		1106	else if (pl->container == this)
		1107	{
		1108	// removing a container should close it
		1109	close_container ();
		1110	}
		1111
		1112	esrv_del_item (pl->contr, count);
1160	}	1113	}
1161		1114
1162	if (op->map != m)
1163	LOG (llevDebug, "remove_ob: Object not really on map it claimed to be on? %s != %s, %d,%d != %d,%d\n",
1164	op->map->path, m->path, op->x, op->y, x, y);
1165
1166	/* Re did the following section of code - it looks like it had
1167	* lots of logic for things we no longer care about
1168	*/
1169
1170	/* link the object above us */	1115	/* link the object above us */
1171	if (op->above)	1116	// re-link, make sure compiler can easily use cmove
1172	op->above->below = op->below;	1117	*(above ? &above->below : &ms.top) = below;
1173	else	1118	*(below ? &below->above : &ms.bot) = above;
1174	SET_MAP_TOP (m, x, y, op->below); /* we were top, set new top */
1175		1119
1176	/* Relink the object below us, if there is one */	1120	above = 0;
1177	if (op->below)	1121	below = 0;
1178	op->below->above = op->above;	1122
1179	else	1123	if (map->in_memory == MAP_SAVING)
		1124	return;
		1125
		1126	int check_walk_off = !flag [FLAG_NO_APPLY];
		1127
		1128	if (object *pl = ms.player ())
1180	{	1129	{
1181	/* Nothing below, which means we need to relink map object for this space	1130	if (pl->container == this)
1182	* use translated coordinates in case some oddness with map tiling is	1131	/* If a container that the player is currently using somehow gets
1183	* evident	1132	* removed (most likely destroyed), update the player view
		1133	* appropriately.
1184	*/	1134	*/
1185	if (GET_MAP_OB (m, x, y) != op)	1135	pl->close_container ();
1186	{
1187	dump_object (op);
1188	LOG (llevError,
1189	"remove_ob: GET_MAP_OB does not return object to be removed even though it appears to be on the bottom?\n%s\n", errmsg);
1190	dump_object (GET_MAP_OB (m, x, y));
1191	LOG (llevError, "%s\n", errmsg);
1192	}
1193		1136
1194	SET_MAP_OB (m, x, y, op->above); /* goes on above it. */	1137	//TODO: the floorbox prev/next might need updating
		1138	//esrv_del_item (pl->contr, count);
		1139	//TODO: update floorbox to preserve ordering
		1140	if (pl->contr->ns)
		1141	pl->contr->ns->floorbox_update ();
1195	}	1142	}
1196		1143
1197	op->above = 0;	1144	for (tmp = ms.bot; tmp; tmp = tmp->above)
1198	op->below = 0;
1199
1200	if (op->map->in_memory == MAP_SAVING)
1201	return;
1202
1203	tag = op->count;
1204	check_walk_off = !QUERY_FLAG (op, FLAG_NO_APPLY);
1205
1206	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)
1207	{	1145	{
1208	/* No point updating the players look faces if he is the object	1146	/* No point updating the players look faces if he is the object
1209	* being removed.	1147	* being removed.
1210	*/	1148	*/
1211		1149
1212	if (tmp->type == PLAYER && tmp != op)	1150	/* See if object moving off should effect something */
		1151	if (check_walk_off
		1152	&& ((move_type & tmp->move_off)
		1153	&& (move_type & ~tmp->move_off & ~tmp->move_block) == 0))
1213	{	1154	{
1214	/* If a container that the player is currently using somehow gets	1155	move_apply (tmp, this, 0);
1215	* removed (most likely destroyed), update the player view
1216	* appropriately.
1217	*/
1218	if (tmp->container == op)
1219	{
1220	CLEAR_FLAG (op, FLAG_APPLIED);
1221	tmp->container = NULL;
1222	}
1223		1156
1224	tmp->contr->socket.update_look = 1;	1157	if (destroyed ())
		1158	LOG (llevError, "BUG: remove_ob(): name %s, destroyed leaving object\n", tmp->debug_desc ());
1225	}	1159	}
1226
1227	/* See if player moving off should effect something */
1228	if (check_walk_off && ((op->move_type & tmp->move_off) && (op->move_type & ~tmp->move_off & ~tmp->move_block) == 0))
1229	{
1230	move_apply (tmp, op, NULL);
1231
1232	if (was_destroyed (op, tag))
1233	{
1234	LOG (llevError, "BUG: remove_ob(): name %s, archname %s destroyed " "leaving object\n", &tmp->name, &tmp->arch->name);
1235	}
1236	}
1237
1238	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */
1239
1240	if (tmp->above == tmp)
1241	tmp->above = NULL;
1242		1160
1243	last = tmp;	1161	last = tmp;
1244	}	1162	}
1245		1163
1246	/* last == NULL of there are no objects on this space */	1164	/* last == NULL if there are no objects on this space */
		1165	//TODO: this makes little sense, why only update the topmost object?
1247	if (last == NULL)	1166	if (!last)
1248	{	1167	map->at (x, y).flags_ = 0;
1249	/* set P_NEED_UPDATE, otherwise update_position will complain. In theory,
1250	* we could preserve the flags (GET_MAP_FLAGS), but update_position figures
1251	* those out anyways, and if there are any flags set right now, they won't
1252	* be correct anyways.
1253	*/
1254	SET_MAP_FLAGS (op->map, op->x, op->y, P_NEED_UPDATE);
1255	update_position (op->map, op->x, op->y);
1256	}
1257	else	1168	else
1258	update_object (last, UP_OBJ_REMOVE);	1169	update_object (last, UP_OBJ_REMOVE);
1259		1170
1260	if (QUERY_FLAG (op, FLAG_BLOCKSVIEW) || (op->glow_radius != 0))	1171	if (flag [FLAG_BLOCKSVIEW] || glow_radius)
1261	update_all_los (op->map, op->x, op->y);	1172	update_all_los (map, x, y);
1262	}	1173	}
1263	}	1174	}
1264		1175
1265	/*	1176	/*
1266	* merge_ob(op,top):	1177	* merge_ob(op,top):
…		…
1274	merge_ob (object *op, object *top)	1185	merge_ob (object *op, object *top)
1275	{	1186	{
1276	if (!op->nrof)	1187	if (!op->nrof)
1277	return 0;	1188	return 0;
1278		1189
1279	if (top == NULL)	1190	if (!top)
1280	for (top = op; top != NULL && top->above != NULL; top = top->above);	1191	for (top = op; top && top->above; top = top->above)
		1192	;
1281		1193
1282	for (; top != NULL; top = top->below)	1194	for (; top; top = top->below)
1283	{	1195	if (object::can_merge (op, top))
1284	if (top == op)
1285	continue;
1286	if (CAN_MERGE (op, top))
1287	{	1196	{
1288	top->nrof += op->nrof;	1197	top->nrof += op->nrof;
1289		1198
1290	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/	1199	if (object *pl = top->visible_to ())
1291	op->weight = 0; /* Don't want any adjustements now */	1200	esrv_update_item (UPD_NROF, pl, top);
1292	remove_ob (op);	1201
1293	free_object (op);	1202	op->weight = 0; // cancel the addition above
		1203	op->carrying = 0; // must be 0 already
		1204
		1205	op->destroy (1);
		1206
1294	return top;	1207	return top;
1295	}	1208	}
1296	}
1297		1209
1298	return NULL;	1210	return 0;
1299	}	1211	}
1300		1212
		1213	void
		1214	object::expand_tail ()
		1215	{
		1216	if (more)
		1217	return;
		1218
		1219	object *prev = this;
		1220
		1221	for (archetype *at = (archetype *)arch->more; at; at = (archetype *)at->more)
		1222	{
		1223	object *op = arch_to_object (at);
		1224
		1225	op->name = name;
		1226	op->name_pl = name_pl;
		1227	op->title = title;
		1228
		1229	op->head = this;
		1230	prev->more = op;
		1231
		1232	prev = op;
		1233	}
		1234	}
		1235
1301	/*	1236	/*
1302	* same as insert_ob_in_map except it handle separate coordinates and do a clean	1237	* same as insert_ob_in_map except it handles separate coordinates and does a clean
1303	* job preparing multi-part monsters	1238	* job preparing multi-part monsters.
1304	*/	1239	*/
1305	object *	1240	object *
1306	insert_ob_in_map_at (object *op, mapstruct *m, object *originator, int flag, int x, int y)	1241	insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)
1307	{	1242	{
1308	object *tmp;	1243	op->remove ();
1309		1244
1310	if (op->head)
1311	op = op->head;
1312
1313	for (tmp = op; tmp; tmp = tmp->more)	1245	for (object *tmp = op->head_ (); tmp; tmp = tmp->more)
1314	{	1246	{
1315	tmp->x = x + tmp->arch->clone.x;	1247	tmp->x = x + tmp->arch->x;
1316	tmp->y = y + tmp->arch->clone.y;	1248	tmp->y = y + tmp->arch->y;
1317	}	1249	}
1318		1250
1319	return insert_ob_in_map (op, m, originator, flag);	1251	return insert_ob_in_map (op, m, originator, flag);
1320	}	1252	}
1321		1253
…		…
1337	* Return value:	1269	* Return value:
1338	* new object if 'op' was merged with other object	1270	* new object if 'op' was merged with other object
1339	* NULL if 'op' was destroyed	1271	* NULL if 'op' was destroyed
1340	* just 'op' otherwise	1272	* just 'op' otherwise
1341	*/	1273	*/
1342
1343	object *	1274	object *
1344	insert_ob_in_map (object *op, mapstruct *m, object *originator, int flag)	1275	insert_ob_in_map (object *op, maptile *m, object *originator, int flag)
1345	{	1276	{
1346	object *tmp, *top, *floor = NULL;	1277	if (op->is_on_map ())
1347	sint16 x, y;
1348
1349	if (QUERY_FLAG (op, FLAG_FREED))
1350	{
1351	LOG (llevError, "Trying to insert freed object!\n");
1352	return NULL;
1353	}	1278	{
1354		1279	LOG (llevError, "insert_ob_in_map called for object already on map");
1355	if (m == NULL)
1356	{
1357	dump_object (op);
1358	LOG (llevError, "Trying to insert in null-map!\n%s\n", errmsg);
1359	return op;
1360	}
1361
1362	if (out_of_map (m, op->x, op->y))
1363	{
1364	dump_object (op);
1365	LOG (llevError, "Trying to insert object outside the map.\n%s\n", errmsg);
1366	#ifdef MANY_CORES
1367	/* Better to catch this here, as otherwise the next use of this object
1368	* is likely to cause a crash. Better to find out where it is getting
1369	* improperly inserted.
1370	*/
1371	abort ();	1280	abort ();
1372	#endif
1373	return op;
1374	}
1375
1376	if (!QUERY_FLAG (op, FLAG_REMOVED))
1377	{	1281	}
1378	dump_object (op);	1282
1379	LOG (llevError, "Trying to insert (map) inserted object.\n%s\n", errmsg);	1283	if (op->env)
1380	return op;
1381	}	1284	{
1382		1285	LOG (llevError, "insert_ob_in_map called for object in an inventory (proceeding)");
1383	if (op->more != NULL)	1286	op->remove ();
1384	{	1287	}
1385	/* The part may be on a different map. */
1386		1288
1387	object *more = op->more;	1289	if (op->face && !face_info (op->face))//D TODO: remove soon
1388		1290	{//D
1389	/* We really need the caller to normalize coordinates - if	1291	LOG (llevError | logBacktrace, "op->face out of bounds: %s", op->debug_desc ());//D
1390	* we set the map, that doesn't work if the location is within	1292	op->face = 1;//D
1391	* a map and this is straddling an edge. So only if coordinate
1392	* is clear wrong do we normalize it.
1393	*/
1394	if (OUT_OF_REAL_MAP (more->map, more->x, more->y))
1395	more->map = get_map_from_coord (m, &more->x, &more->y);
1396	else if (!more->map)
1397	{
1398	/* For backwards compatibility - when not dealing with tiled maps,
1399	* more->map should always point to the parent.
1400	*/
1401	more->map = m;
1402	}
1403
1404	if (insert_ob_in_map (more, more->map, originator, flag) == NULL)
1405	{
1406	if (!op->head)
1407	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");
1408
1409	return NULL;
1410	}
1411	}	1293	}//D
1412
1413	CLEAR_FLAG (op, FLAG_REMOVED);
1414		1294
1415	/* Ideally, the caller figures this out. However, it complicates a lot	1295	/* Ideally, the caller figures this out. However, it complicates a lot
1416	* of areas of callers (eg, anything that uses find_free_spot would now	1296	* of areas of callers (eg, anything that uses find_free_spot would now
1417	* need extra work	1297	* need extra work
1418	*/	1298	*/
1419	op->map = get_map_from_coord (m, &op->x, &op->y);	1299	if (!xy_normalise (m, op->x, op->y))
1420	x = op->x;	1300	{
1421	y = op->y;	1301	op->head_ ()->destroy (1);// remove head_ once all tail object destroyers found
		1302	return 0;
		1303	}
		1304
		1305	if (object *more = op->more)
		1306	if (!insert_ob_in_map (more, m, originator, flag))
		1307	return 0;
		1308
		1309	CLEAR_FLAG (op, FLAG_REMOVED);
		1310
		1311	op->map = m;
		1312	mapspace &ms = op->ms ();
1422		1313
1423	/* this has to be done after we translate the coordinates.	1314	/* this has to be done after we translate the coordinates.
1424	*/	1315	*/
1425	if (op->nrof && !(flag & INS_NO_MERGE))	1316	if (op->nrof && !(flag & INS_NO_MERGE))
1426	for (tmp = GET_MAP_OB (op->map, x, y); tmp != NULL; tmp = tmp->above)	1317	for (object *tmp = ms.bot; tmp; tmp = tmp->above)
1427	if (CAN_MERGE (op, tmp))	1318	if (object::can_merge (op, tmp))
1428	{	1319	{
		1320	// TODO: we actually want to update tmp, not op,
		1321	// but some caller surely breaks when we return tmp
		1322	// from here :/
1429	op->nrof += tmp->nrof;	1323	op->nrof += tmp->nrof;
1430	remove_ob (tmp);	1324	tmp->destroy (1);
1431	free_object (tmp);
1432	}	1325	}
1433		1326
1434	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */	1327	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */
1435	CLEAR_FLAG (op, FLAG_INV_LOCKED);	1328	CLEAR_FLAG (op, FLAG_INV_LOCKED);
1436		1329
…		…
1443	{	1336	{
1444	LOG (llevError, "insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");	1337	LOG (llevError, "insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");
1445	abort ();	1338	abort ();
1446	}	1339	}
1447		1340
		1341	if (!originator->is_on_map ())
		1342	LOG (llevDebug | logBacktrace, "insert_ob_in_map(%s) called with INS_BELOW_ORIGINATOR when originator '%s' not on map",
		1343	op->debug_desc (), originator->debug_desc ());
		1344
1448	op->above = originator;	1345	op->above = originator;
1449	op->below = originator->below;	1346	op->below = originator->below;
1450
1451	if (op->below)
1452	op->below->above = op;
1453	else
1454	SET_MAP_OB (op->map, op->x, op->y, op);
1455
1456	/* since *below* originator, no need to update top */
1457	originator->below = op;	1347	originator->below = op;
		1348
		1349	*(op->below ? &op->below->above : &ms.bot) = op;
1458	}	1350	}
1459	else	1351	else
1460	{	1352	{
		1353	object *floor = 0;
		1354	object *top = ms.top;
		1355
1461	/* If there are other objects, then */	1356	/* If there are other objects, then */
1462	if ((!(flag & INS_MAP_LOAD)) && ((top = GET_MAP_OB (op->map, op->x, op->y)) != NULL))	1357	if (top)
1463	{	1358	{
1464	object *last = NULL;
1465
1466	/*	1359	/*
1467	* If there are multiple objects on this space, we do some trickier handling.	1360	* If there are multiple objects on this space, we do some trickier handling.
1468	* We've already dealt with merging if appropriate.	1361	* We've already dealt with merging if appropriate.
1469	* Generally, we want to put the new object on top. But if	1362	* Generally, we want to put the new object on top. But if
1470	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last	1363	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last
…		…
1473	* once we get to them. This reduces the need to traverse over all of	1366	* once we get to them. This reduces the need to traverse over all of
1474	* them when adding another one - this saves quite a bit of cpu time	1367	* them when adding another one - this saves quite a bit of cpu time
1475	* when lots of spells are cast in one area. Currently, it is presumed	1368	* when lots of spells are cast in one area. Currently, it is presumed
1476	* that flying non pickable objects are spell objects.	1369	* that flying non pickable objects are spell objects.
1477	*/	1370	*/
1478		1371	for (object *tmp = ms.bot; tmp; tmp = tmp->above)
1479	while (top != NULL)
1480	{	1372	{
1481	if (QUERY_FLAG (top, FLAG_IS_FLOOR) || QUERY_FLAG (top, FLAG_OVERLAY_FLOOR))	1373	if (QUERY_FLAG (tmp, FLAG_IS_FLOOR) || QUERY_FLAG (tmp, FLAG_OVERLAY_FLOOR))
1482	floor = top;	1374	floor = tmp;
1483		1375
1484	if (QUERY_FLAG (top, FLAG_NO_PICK) && (top->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (top, FLAG_IS_FLOOR))	1376	if (QUERY_FLAG (tmp, FLAG_NO_PICK) && (tmp->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (tmp, FLAG_IS_FLOOR))
1485	{	1377	{
1486	/* We insert above top, so we want this object below this */	1378	/* We insert above top, so we want this object below this */
1487	top = top->below;	1379	top = tmp->below;
1488	break;	1380	break;
1489	}	1381	}
1490		1382
1491	last = top;
1492	top = top->above;	1383	top = tmp;
1493	}	1384	}
1494
1495	/* Don't want top to be NULL, so set it to the last valid object */
1496	top = last;
1497		1385
1498	/* We let update_position deal with figuring out what the space	1386	/* We let update_position deal with figuring out what the space
1499	* looks like instead of lots of conditions here.	1387	* looks like instead of lots of conditions here.
1500	* makes things faster, and effectively the same result.	1388	* makes things faster, and effectively the same result.
1501	*/	1389	*/
1502		1390
1503	/* Have object 'fall below' other objects that block view.	1391	/* Have object 'fall below' other objects that block view.
1504	* Unless those objects are exits, type 66	1392	* Unless those objects are exits.
1505	* If INS_ON_TOP is used, don't do this processing	1393	* If INS_ON_TOP is used, don't do this processing
1506	* Need to find the object that in fact blocks view, otherwise	1394	* Need to find the object that in fact blocks view, otherwise
1507	* stacking is a bit odd.	1395	* stacking is a bit odd.
1508	*/	1396	*/
1509	if (!(flag & INS_ON_TOP) &&	1397	if (!(flag & INS_ON_TOP)
1510	(get_map_flags (op->map, NULL, op->x, op->y, NULL, NULL) & P_BLOCKSVIEW) && (op->face && !op->face->visibility))	1398	&& ms.flags () & P_BLOCKSVIEW
		1399	&& (op->face && !faces [op->face].visibility))
1511	{	1400	{
		1401	object *last;
		1402
1512	for (last = top; last != floor; last = last->below)	1403	for (last = top; last != floor; last = last->below)
1513	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))	1404	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))
1514	break;	1405	break;
		1406
1515	/* Check to see if we found the object that blocks view,	1407	/* Check to see if we found the object that blocks view,
1516	* and make sure we have a below pointer for it so that	1408	* and make sure we have a below pointer for it so that
1517	* we can get inserted below this one, which requires we	1409	* we can get inserted below this one, which requires we
1518	* set top to the object below us.	1410	* set top to the object below us.
1519	*/	1411	*/
1520	if (last && last->below && last != floor)	1412	if (last && last->below && last != floor)
1521	top = last->below;	1413	top = last->below;
1522	}	1414	}
1523	} /* If objects on this space */	1415	} /* If objects on this space */
1524		1416
1525	if (flag & INS_MAP_LOAD)
1526	top = GET_MAP_TOP (op->map, op->x, op->y);
1527
1528	if (flag & INS_ABOVE_FLOOR_ONLY)	1417	if (flag & INS_ABOVE_FLOOR_ONLY)
1529	top = floor;	1418	top = floor;
1530		1419
1531	/* Top is the object that our object (op) is going to get inserted above.	1420	// insert object above top, or bottom-most if top = 0
1532	*/
1533
1534	/* First object on this space */
1535	if (!top)	1421	if (!top)
1536	{	1422	{
1537	op->above = GET_MAP_OB (op->map, op->x, op->y);
1538
1539	if (op->above)
1540	op->above->below = op;
1541
1542	op->below = NULL;	1423	op->below = 0;
1543	SET_MAP_OB (op->map, op->x, op->y, op);	1424	op->above = ms.bot;
		1425	ms.bot = op;
		1426
		1427	*(op->above ? &op->above->below : &ms.top) = op;
1544	}	1428	}
1545	else	1429	else
1546	{ /* get inserted into the stack above top */	1430	{
1547	op->above = top->above;	1431	op->above = top->above;
1548
1549	if (op->above)
1550	op->above->below = op;	1432	top->above = op;
1551		1433
1552	op->below = top;	1434	op->below = top;
1553	top->above = op;	1435	*(op->above ? &op->above->below : &ms.top) = op;
1554	}	1436	}
1555		1437	}
1556	if (op->above == NULL)
1557	SET_MAP_TOP (op->map, op->x, op->y, op);
1558	} /* else not INS_BELOW_ORIGINATOR */
1559		1438
1560	if (op->type == PLAYER)	1439	if (op->type == PLAYER)
		1440	{
1561	op->contr->do_los = 1;	1441	op->contr->do_los = 1;
		1442	++op->map->players;
		1443	op->map->touch ();
		1444	}
1562		1445
1563	/* If we have a floor, we know the player, if any, will be above	1446	op->map->dirty = true;
1564	* it, so save a few ticks and start from there.	1447
1565	*/	1448	if (object *pl = ms.player ())
1566	if (!(flag & INS_MAP_LOAD))	1449	//TODO: the floorbox prev/next might need updating
1567	for (tmp = floor ? floor : GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)	1450	//esrv_send_item (pl, op);
1568	if (tmp->type == PLAYER)	1451	//TODO: update floorbox to preserve ordering
1569	tmp->contr->socket.update_look = 1;	1452	if (pl->contr->ns)
		1453	pl->contr->ns->floorbox_update ();
1570		1454
1571	/* If this object glows, it may affect lighting conditions that are	1455	/* If this object glows, it may affect lighting conditions that are
1572	* visible to others on this map. But update_all_los is really	1456	* visible to others on this map. But update_all_los is really
1573	* an inefficient way to do this, as it means los for all players	1457	* an inefficient way to do this, as it means los for all players
1574	* on the map will get recalculated. The players could very well	1458	* on the map will get recalculated. The players could very well
1575	* be far away from this change and not affected in any way -	1459	* be far away from this change and not affected in any way -
1576	* this should get redone to only look for players within range,	1460	* this should get redone to only look for players within range,
1577	* or just updating the P_NEED_UPDATE for spaces within this area	1461	* or just updating the P_UPTODATE for spaces within this area
1578	* of effect may be sufficient.	1462	* of effect may be sufficient.
1579	*/	1463	*/
1580	if (MAP_DARKNESS (op->map) && (op->glow_radius != 0))	1464	if (op->map->darkness && (op->glow_radius != 0))
1581	update_all_los (op->map, op->x, op->y);	1465	update_all_los (op->map, op->x, op->y);
1582		1466
1583	/* updates flags (blocked, alive, no magic, etc) for this map space */	1467	/* updates flags (blocked, alive, no magic, etc) for this map space */
1584	update_object (op, UP_OBJ_INSERT);	1468	update_object (op, UP_OBJ_INSERT);
1585		1469
		1470	INVOKE_OBJECT (INSERT, op);
		1471
1586	/* Don't know if moving this to the end will break anything. However,	1472	/* Don't know if moving this to the end will break anything. However,
1587	* we want to have update_look set above before calling this.	1473	* we want to have floorbox_update called before calling this.
1588	*	1474	*
1589	* check_move_on() must be after this because code called from	1475	* check_move_on() must be after this because code called from
1590	* check_move_on() depends on correct map flags (so functions like	1476	* check_move_on() depends on correct map flags (so functions like
1591	* blocked() and wall() work properly), and these flags are updated by	1477	* blocked() and wall() work properly), and these flags are updated by
1592	* update_object().	1478	* update_object().
1593	*/	1479	*/
1594		1480
1595	/* if this is not the head or flag has been passed, don't check walk on status */	1481	/* if this is not the head or flag has been passed, don't check walk on status */
1596	if (!(flag & INS_NO_WALK_ON) && !op->head)	1482	if (!(flag & INS_NO_WALK_ON) && op->head_ () == op)
1597	{	1483	{
1598	if (check_move_on (op, originator))	1484	if (check_move_on (op, originator))
1599	return NULL;	1485	return 0;
1600		1486
1601	/* If we are a multi part object, lets work our way through the check	1487	/* If we are a multi part object, lets work our way through the check
1602	* walk on's.	1488	* walk on's.
1603	*/	1489	*/
1604	for (tmp = op->more; tmp != NULL; tmp = tmp->more)	1490	for (object *tmp = op->more; tmp; tmp = tmp->more)
1605	if (check_move_on (tmp, originator))	1491	if (check_move_on (tmp, originator))
1606	return NULL;	1492	return 0;
1607	}	1493	}
1608		1494
1609	return op;	1495	return op;
1610	}	1496	}
1611		1497
1612	/* this function inserts an object in the map, but if it	1498	/* this function inserts an object in the map, but if it
1613	* finds an object of its own type, it'll remove that one first.	1499	* finds an object of its own type, it'll remove that one first.
1614	* op is the object to insert it under: supplies x and the map.	1500	* op is the object to insert it under: supplies x and the map.
1615	*/	1501	*/
1616	void	1502	void
1617	replace_insert_ob_in_map (const char *arch_string, object *op)	1503	replace_insert_ob_in_map (const char *arch_string, object *op)
1618	{	1504	{
1619	object *
1620	tmp;
1621	object *
1622	tmp1;
1623
1624	/* first search for itself and remove any old instances */	1505	/* first search for itself and remove any old instances */
1625		1506
1626	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)	1507	for (object *tmp = op->ms ().bot; tmp; tmp = tmp->above)
1627	{
1628	if (!strcmp (tmp->arch->name, arch_string)) /* same archetype */	1508	if (!strcmp (tmp->arch->archname, arch_string)) /* same archetype */
1629	{	1509	tmp->destroy (1);
1630	remove_ob (tmp);
1631	free_object (tmp);
1632	}
1633	}
1634		1510
1635	tmp1 = arch_to_object (find_archetype (arch_string));	1511	object *tmp = arch_to_object (archetype::find (arch_string));
1636		1512
1637	tmp1->x = op->x;	1513	tmp->x = op->x;
1638	tmp1->y = op->y;	1514	tmp->y = op->y;
		1515
1639	insert_ob_in_map (tmp1, op->map, op, 0);	1516	insert_ob_in_map (tmp, op->map, op, 0);
1640	}	1517	}
1641
1642	/*
1643	* get_split_ob(ob,nr) splits up ob into two parts. The part which
1644	* is returned contains nr objects, and the remaining parts contains
1645	* the rest (or is removed and freed if that number is 0).
1646	* On failure, NULL is returned, and the reason put into the
1647	* global static errmsg array.
1648	*/
1649		1518
1650	object *	1519	object *
1651	get_split_ob (object *orig_ob, uint32 nr)	1520	object::insert_at (object *where, object *originator, int flags)
1652	{	1521	{
1653	object *	1522	if (where->env)
1654	newob;	1523	return where->env->insert (this);
1655	int	1524	else
1656	is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);	1525	return where->map->insert (this, where->x, where->y, originator, flags);
1657
1658	if (orig_ob->nrof < nr)
1659	{
1660	sprintf (errmsg, "There are only %d %ss.", orig_ob->nrof ? orig_ob->nrof : 1, &orig_ob->name);
1661	return NULL;
1662	}
1663
1664	newob = object_create_clone (orig_ob);
1665
1666	if ((orig_ob->nrof -= nr) < 1)
1667	{
1668	if (!is_removed)
1669	remove_ob (orig_ob);
1670	free_object2 (orig_ob, 1);
1671	}
1672	else if (!is_removed)
1673	{
1674	if (orig_ob->env != NULL)
1675	sub_weight (orig_ob->env, orig_ob->weight * nr);
1676	if (orig_ob->env == NULL && orig_ob->map->in_memory != MAP_IN_MEMORY)
1677	{
1678	strcpy (errmsg, "Tried to split object whose map is not in memory.");
1679	LOG (llevDebug, "Error, Tried to split object whose map is not in memory.\n");
1680	return NULL;
1681	}
1682	}
1683
1684	newob->nrof = nr;
1685
1686	return newob;
1687	}	1526	}
1688		1527
1689	/*	1528	/*
1690	* decrease_ob_nr(object, number) decreases a specified number from	1529	* decrease(object, number) decreases a specified number from
1691	* the amount of an object. If the amount reaches 0, the object	1530	* the amount of an object. If the amount reaches 0, the object
1692	* is subsequently removed and freed.	1531	* is subsequently removed and freed.
1693	*	1532	*
1694	* Return value: 'op' if something is left, NULL if the amount reached 0	1533	* Return value: 'op' if something is left, NULL if the amount reached 0
1695	*/	1534	*/
		1535	bool
		1536	object::decrease (sint32 nr)
		1537	{
		1538	if (!nr)
		1539	return true;
1696		1540
		1541	nr = min (nr, nrof);
		1542
		1543	nrof -= nr;
		1544
		1545	if (nrof)
		1546	{
		1547	adjust_weight (env, -weight * max (1, nr)); // carrying == 0
		1548
		1549	if (object *pl = visible_to ())
		1550	esrv_update_item (UPD_NROF, pl, this);
		1551
		1552	return true;
		1553	}
		1554	else
		1555	{
		1556	destroy (1);
		1557	return false;
		1558	}
		1559	}
		1560
		1561	/*
		1562	* split(ob,nr) splits up ob into two parts. The part which
		1563	* is returned contains nr objects, and the remaining parts contains
		1564	* the rest (or is removed and returned if that number is 0).
		1565	* On failure, NULL is returned.
		1566	*/
1697	object *	1567	object *
1698	decrease_ob_nr (object *op, uint32 i)	1568	object::split (sint32 nr)
1699	{	1569	{
1700	object *tmp;	1570	int have = number_of ();
1701	player *pl;
1702		1571
1703	if (i == 0) /* objects with op->nrof require this check */	1572	if (have < nr)
1704	return op;	1573	return 0;
1705		1574	else if (have == nr)
1706	if (i > op->nrof)
1707	i = op->nrof;
1708
1709	if (QUERY_FLAG (op, FLAG_REMOVED))
1710	op->nrof -= i;
1711	else if (op->env != NULL)
1712	{	1575	{
1713	/* is this object in the players inventory, or sub container
1714	* therein?
1715	*/
1716	tmp = is_player_inv (op->env);
1717	/* nope. Is this a container the player has opened?
1718	* If so, set tmp to that player.
1719	* IMO, searching through all the players will mostly
1720	* likely be quicker than following op->env to the map,
1721	* and then searching the map for a player.
1722	*/
1723	if (!tmp)
1724	{
1725	for (pl = first_player; pl; pl = pl->next)
1726	if (pl->ob->container == op->env)
1727	break;
1728	if (pl)
1729	tmp = pl->ob;
1730	else
1731	tmp = NULL;
1732	}
1733
1734	if (i < op->nrof)
1735	{
1736	sub_weight (op->env, op->weight * i);
1737	op->nrof -= i;
1738	if (tmp)
1739	{
1740	esrv_send_item (tmp, op);
1741	}
1742	}
1743	else
1744	{
1745	remove_ob (op);	1576	remove ();
1746	op->nrof = 0;	1577	return this;
1747	if (tmp)
1748	{
1749	esrv_del_item (tmp->contr, op->count);
1750	}
1751	}
1752	}	1578	}
1753	else	1579	else
1754	{	1580	{
1755	object *above = op->above;	1581	decrease (nr);
1756		1582
1757	if (i < op->nrof)	1583	object *op = deep_clone ();
1758	op->nrof -= i;	1584	op->nrof = nr;
1759	else
1760	{
1761	remove_ob (op);
1762	op->nrof = 0;
1763	}
1764
1765	/* Since we just removed op, op->above is null */
1766	for (tmp = above; tmp != NULL; tmp = tmp->above)
1767	if (tmp->type == PLAYER)
1768	{
1769	if (op->nrof)
1770	esrv_send_item (tmp, op);
1771	else
1772	esrv_del_item (tmp->contr, op->count);
1773	}
1774	}
1775
1776	if (op->nrof)
1777	return op;	1585	return op;
1778	else
1779	{	1586	}
1780	free_object (op);	1587	}
		1588
		1589	object *
		1590	insert_ob_in_ob (object *op, object *where)
		1591	{
		1592	if (!where)
		1593	{
		1594	char *dump = dump_object (op);
		1595	LOG (llevError, "Trying to put object in NULL.\n%s\n", dump);
		1596	free (dump);
1781	return NULL;	1597	return op;
1782	}
1783	}
1784
1785	/*
1786	* add_weight(object, weight) adds the specified weight to an object,
1787	* and also updates how much the environment(s) is/are carrying.
1788	*/
1789
1790	void
1791	add_weight (object *op, signed long weight)
1792	{
1793	while (op != NULL)
1794	{	1598	}
1795	if (op->type == CONTAINER)
1796	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1797		1599
1798	op->carrying += weight;	1600	if (where->head_ () != where)
1799	op = op->env;
1800	}	1601	{
1801	}	1602	LOG (llevError | logBacktrace, "Warning: Tried to insert object into wrong part of multipart object.\n");
		1603	where = where->head;
		1604	}
1802		1605
		1606	return where->insert (op);
		1607	}
		1608
1803	/*	1609	/*
1804	* insert_ob_in_ob(op,environment):	1610	* env->insert (op)
1805	* This function inserts the object op in the linked list	1611	* This function inserts the object op in the linked list
1806	* inside the object environment.	1612	* inside the object environment.
1807	*	1613	*
1808	* Eneq(@csd.uu.se): Altered insert_ob_in_ob to make things picked up enter
1809	* the inventory at the last position or next to other objects of the same
1810	* type.
1811	* Frank: Now sorted by type, archetype and magic!
1812	*
1813	* The function returns now pointer to inserted item, and return value can	1614	* The function returns now pointer to inserted item, and return value can
1814	* be != op, if items are merged. -Tero	1615	* be != op, if items are merged. -Tero
1815	*/	1616	*/
1816
1817	object *	1617	object *
1818	insert_ob_in_ob (object *op, object *where)	1618	object::insert (object *op)
1819	{	1619	{
1820	object *
1821	tmp, *
1822	otmp;
1823
1824	if (!QUERY_FLAG (op, FLAG_REMOVED))
1825	{
1826	dump_object (op);
1827	LOG (llevError, "Trying to insert (ob) inserted object.\n%s\n", errmsg);
1828	return op;
1829	}
1830
1831	if (where == NULL)
1832	{
1833	dump_object (op);
1834	LOG (llevError, "Trying to put object in NULL.\n%s\n", errmsg);
1835	return op;
1836	}
1837
1838	if (where->head)
1839	{
1840	LOG (llevDebug, "Warning: Tried to insert object wrong part of multipart object.\n");
1841	where = where->head;
1842	}
1843
1844	if (op->more)	1620	if (op->more)
1845	{	1621	{
1846	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);	1622	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);
1847	return op;	1623	return op;
1848	}	1624	}
1849		1625
1850	CLEAR_FLAG (op, FLAG_OBJ_ORIGINAL);	1626	op->remove ();
1851	CLEAR_FLAG (op, FLAG_REMOVED);	1627
		1628	op->flag [FLAG_OBJ_ORIGINAL] = 0;
		1629
1852	if (op->nrof)	1630	if (op->nrof)
1853	{
1854	for (tmp = where->inv; tmp != NULL; tmp = tmp->below)	1631	for (object *tmp = inv; tmp; tmp = tmp->below)
1855	if (CAN_MERGE (tmp, op))	1632	if (object::can_merge (tmp, op))
1856	{	1633	{
1857	/* return the original object and remove inserted object	1634	/* return the original object and remove inserted object
1858	(client needs the original object) */	1635	(client needs the original object) */
1859	tmp->nrof += op->nrof;	1636	tmp->nrof += op->nrof;
1860	/* Weight handling gets pretty funky. Since we are adding to	1637
1861	* tmp->nrof, we need to increase the weight.	1638	if (object *pl = tmp->visible_to ())
1862	*/	1639	esrv_update_item (UPD_NROF, pl, tmp);
1863	add_weight (where, op->weight * op->nrof);	1640
1864	SET_FLAG (op, FLAG_REMOVED);	1641	adjust_weight (this, op->total_weight ());
1865	free_object (op); /* free the inserted object */	1642
		1643	op->destroy (1);
1866	op = tmp;	1644	op = tmp;
1867	remove_ob (op); /* and fix old object's links */	1645	goto inserted;
1868	CLEAR_FLAG (op, FLAG_REMOVED);
1869	break;
1870	}	1646	}
1871		1647
1872	/* I assume combined objects have no inventory	1648	op->owner = 0; // it's his/hers now. period.
1873	* We add the weight - this object could have just been removed
1874	* (if it was possible to merge). calling remove_ob will subtract
1875	* the weight, so we need to add it in again, since we actually do
1876	* the linking below
1877	*/
1878	add_weight (where, op->weight * op->nrof);
1879	}
1880	else
1881	add_weight (where, (op->weight + op->carrying));
1882
1883	otmp = is_player_inv (where);
1884	if (otmp && otmp->contr != NULL)
1885	{
1886	if (!QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1887	fix_player (otmp);
1888	}
1889
1890	op->map = NULL;	1649	op->map = 0;
1891	op->env = where;	1650	op->x = 0;
		1651	op->y = 0;
		1652
1892	op->above = NULL;	1653	op->above = 0;
1893	op->below = NULL;	1654	op->below = inv;
1894	op->x = 0, op->y = 0;	1655	op->env = this;
1895		1656
		1657	if (inv)
		1658	inv->above = op;
		1659
		1660	inv = op;
		1661
		1662	op->flag [FLAG_REMOVED] = 0;
		1663
		1664	if (object *pl = op->visible_to ())
		1665	esrv_send_item (pl, op);
		1666
		1667	adjust_weight (this, op->total_weight ());
		1668
		1669	inserted:
1896	/* reset the light list and los of the players on the map */	1670	/* reset the light list and los of the players on the map */
1897	if ((op->glow_radius != 0) && where->map)	1671	if (op->glow_radius && map && map->darkness)
1898	{	1672	update_all_los (map, x, y);
1899	#ifdef DEBUG_LIGHTS
1900	LOG (llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n", op->name);
1901	#endif /* DEBUG_LIGHTS */
1902	if (MAP_DARKNESS (where->map))
1903	update_all_los (where->map, where->x, where->y);
1904	}
1905		1673
1906	/* Client has no idea of ordering so lets not bother ordering it here.	1674	// if this is a player's inventory, update stats
1907	* It sure simplifies this function...	1675	if (type == PLAYER && !flag [FLAG_NO_FIX_PLAYER])
1908	*/	1676	update_stats ();
1909	if (where->inv == NULL)	1677
1910	where->inv = op;	1678	INVOKE_OBJECT (INSERT, this);
1911	else	1679
1912	{
1913	op->below = where->inv;
1914	op->below->above = op;
1915	where->inv = op;
1916	}
1917	return op;	1680	return op;
1918	}	1681	}
1919		1682
1920	/*	1683	/*
1921	* Checks if any objects has a move_type that matches objects	1684	* Checks if any objects has a move_type that matches objects
…		…
1935	*	1698	*
1936	* MSW 2001-07-08: Check all objects on space, not just those below	1699	* MSW 2001-07-08: Check all objects on space, not just those below
1937	* object being inserted. insert_ob_in_map may not put new objects	1700	* object being inserted. insert_ob_in_map may not put new objects
1938	* on top.	1701	* on top.
1939	*/	1702	*/
1940
1941	int	1703	int
1942	check_move_on (object *op, object *originator)	1704	check_move_on (object *op, object *originator)
1943	{	1705	{
1944	object *	1706	object *tmp;
1945	tmp;	1707	maptile *m = op->map;
1946	tag_t
1947	tag;
1948	mapstruct *
1949	m = op->map;
1950	int
1951	x = op->x, y = op->y;	1708	int x = op->x, y = op->y;
1952		1709
1953	MoveType	1710	MoveType move_on, move_slow, move_block;
1954	move_on,
1955	move_slow,
1956	move_block;
1957		1711
1958	if (QUERY_FLAG (op, FLAG_NO_APPLY))	1712	if (QUERY_FLAG (op, FLAG_NO_APPLY))
1959	return 0;	1713	return 0;
1960
1961	tag = op->count;
1962		1714
1963	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);	1715	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);
1964	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);	1716	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);
1965	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);	1717	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);
1966		1718
…		…
1982		1734
1983	/* The objects have to be checked from top to bottom.	1735	/* The objects have to be checked from top to bottom.
1984	* Hence, we first go to the top:	1736	* Hence, we first go to the top:
1985	*/	1737	*/
1986		1738
1987	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL && tmp->above != NULL; tmp = tmp->above)	1739	for (tmp = op->ms ().bot; tmp && tmp->above; tmp = tmp->above)
1988	{	1740	{
1989	/* Trim the search when we find the first other spell effect	1741	/* Trim the search when we find the first other spell effect
1990	* this helps performance so that if a space has 50 spell objects,	1742	* this helps performance so that if a space has 50 spell objects,
1991	* we don't need to check all of them.	1743	* we don't need to check all of them.
1992	*/	1744	*/
…		…
2010	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||	1762	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||
2011	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))	1763	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))
2012	{	1764	{
2013		1765
2014	float	1766	float
2015	diff = tmp->move_slow_penalty * FABS (op->speed);	1767	diff = tmp->move_slow_penalty * fabs (op->speed);
2016		1768
2017	if (op->type == PLAYER)	1769	if (op->type == PLAYER)
2018	if ((QUERY_FLAG (tmp, FLAG_IS_HILLY) && find_skill_by_number (op, SK_CLIMBING)) ||	1770	if ((QUERY_FLAG (tmp, FLAG_IS_HILLY) && find_skill_by_number (op, SK_CLIMBING)) ||
2019	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))	1771	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))
2020	diff /= 4.0;	1772	diff /= 4.0;
…		…
2027	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||	1779	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||
2028	((op->move_type & tmp->move_on) && (op->move_type & ~tmp->move_on & ~tmp->move_block) == 0))	1780	((op->move_type & tmp->move_on) && (op->move_type & ~tmp->move_on & ~tmp->move_block) == 0))
2029	{	1781	{
2030	move_apply (tmp, op, originator);	1782	move_apply (tmp, op, originator);
2031		1783
2032	if (was_destroyed (op, tag))	1784	if (op->destroyed ())
2033	return 1;	1785	return 1;
2034		1786
2035	/* what the person/creature stepped onto has moved the object	1787	/* what the person/creature stepped onto has moved the object
2036	* someplace new. Don't process any further - if we did,	1788	* someplace new. Don't process any further - if we did,
2037	* have a feeling strange problems would result.	1789	* have a feeling strange problems would result.
…		…
2047	/*	1799	/*
2048	* present_arch(arch, map, x, y) searches for any objects with	1800	* present_arch(arch, map, x, y) searches for any objects with
2049	* a matching archetype at the given map and coordinates.	1801	* a matching archetype at the given map and coordinates.
2050	* The first matching object is returned, or NULL if none.	1802	* The first matching object is returned, or NULL if none.
2051	*/	1803	*/
2052
2053	object *	1804	object *
2054	present_arch (const archetype *at, mapstruct *m, int x, int y)	1805	present_arch (const archetype *at, maptile *m, int x, int y)
2055	{	1806	{
2056	object *
2057	tmp;
2058
2059	if (m == NULL || out_of_map (m, x, y))	1807	if (!m || out_of_map (m, x, y))
2060	{	1808	{
2061	LOG (llevError, "Present_arch called outside map.\n");	1809	LOG (llevError, "Present_arch called outside map.\n");
2062	return NULL;	1810	return NULL;
2063	}	1811	}
2064	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)	1812
2065	if (tmp->arch == at)	1813	for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)
		1814	if (tmp->arch->archname == at->archname)
2066	return tmp;	1815	return tmp;
		1816
2067	return NULL;	1817	return NULL;
2068	}	1818	}
2069		1819
2070	/*	1820	/*
2071	* present(type, map, x, y) searches for any objects with	1821	* present(type, map, x, y) searches for any objects with
2072	* a matching type variable at the given map and coordinates.	1822	* a matching type variable at the given map and coordinates.
2073	* The first matching object is returned, or NULL if none.	1823	* The first matching object is returned, or NULL if none.
2074	*/	1824	*/
2075
2076	object *	1825	object *
2077	present (unsigned char type, mapstruct *m, int x, int y)	1826	present (unsigned char type, maptile *m, int x, int y)
2078	{	1827	{
2079	object *
2080	tmp;
2081
2082	if (out_of_map (m, x, y))	1828	if (out_of_map (m, x, y))
2083	{	1829	{
2084	LOG (llevError, "Present called outside map.\n");	1830	LOG (llevError, "Present called outside map.\n");
2085	return NULL;	1831	return NULL;
2086	}	1832	}
2087	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)	1833
		1834	for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)
2088	if (tmp->type == type)	1835	if (tmp->type == type)
2089	return tmp;	1836	return tmp;
		1837
2090	return NULL;	1838	return NULL;
2091	}	1839	}
2092		1840
2093	/*	1841	/*
2094	* present_in_ob(type, object) searches for any objects with	1842	* present_in_ob(type, object) searches for any objects with
2095	* a matching type variable in the inventory of the given object.	1843	* a matching type variable in the inventory of the given object.
2096	* The first matching object is returned, or NULL if none.	1844	* The first matching object is returned, or NULL if none.
2097	*/	1845	*/
2098
2099	object *	1846	object *
2100	present_in_ob (unsigned char type, const object *op)	1847	present_in_ob (unsigned char type, const object *op)
2101	{	1848	{
2102	object *
2103	tmp;
2104
2105	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1849	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
2106	if (tmp->type == type)	1850	if (tmp->type == type)
2107	return tmp;	1851	return tmp;
		1852
2108	return NULL;	1853	return NULL;
2109	}	1854	}
2110		1855
2111	/*	1856	/*
2112	* present_in_ob (type, str, object) searches for any objects with	1857	* present_in_ob (type, str, object) searches for any objects with
…		…
2120	* str is the string to match against. Note that we match against	1865	* str is the string to match against. Note that we match against
2121	* the object name, not the archetype name. this is so that the	1866	* the object name, not the archetype name. this is so that the
2122	* spell code can use one object type (force), but change it's name	1867	* spell code can use one object type (force), but change it's name
2123	* to be unique.	1868	* to be unique.
2124	*/	1869	*/
2125
2126	object *	1870	object *
2127	present_in_ob_by_name (int type, const char *str, const object *op)	1871	present_in_ob_by_name (int type, const char *str, const object *op)
2128	{	1872	{
2129	object *
2130	tmp;
2131
2132	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1873	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2133	{
2134	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))	1874	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))
2135	return tmp;	1875	return tmp;
2136	}	1876
2137	return NULL;	1877	return 0;
2138	}	1878	}
2139		1879
2140	/*	1880	/*
2141	* present_arch_in_ob(archetype, object) searches for any objects with	1881	* present_arch_in_ob(archetype, object) searches for any objects with
2142	* a matching archetype in the inventory of the given object.	1882	* a matching archetype in the inventory of the given object.
2143	* The first matching object is returned, or NULL if none.	1883	* The first matching object is returned, or NULL if none.
2144	*/	1884	*/
2145
2146	object *	1885	object *
2147	present_arch_in_ob (const archetype *at, const object *op)	1886	present_arch_in_ob (const archetype *at, const object *op)
2148	{	1887	{
2149	object *
2150	tmp;
2151
2152	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1888	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2153	if (tmp->arch == at)	1889	if (tmp->arch->archname == at->archname)
2154	return tmp;	1890	return tmp;
		1891
2155	return NULL;	1892	return NULL;
2156	}	1893	}
2157		1894
2158	/*	1895	/*
2159	* activate recursively a flag on an object inventory	1896	* activate recursively a flag on an object inventory
2160	*/	1897	*/
2161	void	1898	void
2162	flag_inv (object *op, int flag)	1899	flag_inv (object *op, int flag)
2163	{	1900	{
2164	object *
2165	tmp;
2166
2167	if (op->inv)
2168	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1901	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2169	{	1902	{
2170	SET_FLAG (tmp, flag);	1903	SET_FLAG (tmp, flag);
2171	flag_inv (tmp, flag);	1904	flag_inv (tmp, flag);
2172	}	1905	}
2173	} /*	1906	}
		1907
		1908	/*
2174	* desactivate recursively a flag on an object inventory	1909	* deactivate recursively a flag on an object inventory
2175	*/	1910	*/
2176	void	1911	void
2177	unflag_inv (object *op, int flag)	1912	unflag_inv (object *op, int flag)
2178	{	1913	{
2179	object *
2180	tmp;
2181
2182	if (op->inv)
2183	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1914	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2184	{	1915	{
2185	CLEAR_FLAG (tmp, flag);	1916	CLEAR_FLAG (tmp, flag);
2186	unflag_inv (tmp, flag);	1917	unflag_inv (tmp, flag);
2187	}	1918	}
2188	}
2189
2190	/*
2191	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in
2192	* all it's inventory (recursively).
2193	* If checksums are used, a player will get set_cheat called for
2194	* him/her-self and all object carried by a call to this function.
2195	*/
2196
2197	void
2198	set_cheat (object *op)
2199	{
2200	SET_FLAG (op, FLAG_WAS_WIZ);
2201	flag_inv (op, FLAG_WAS_WIZ);
2202	}	1919	}
2203		1920
2204	/*	1921	/*
2205	* find_free_spot(object, map, x, y, start, stop) will search for	1922	* find_free_spot(object, map, x, y, start, stop) will search for
2206	* a spot at the given map and coordinates which will be able to contain	1923	* a spot at the given map and coordinates which will be able to contain
…		…
2208	* to search (see the freearr_x/y[] definition).	1925	* to search (see the freearr_x/y[] definition).
2209	* It returns a random choice among the alternatives found.	1926	* It returns a random choice among the alternatives found.
2210	* start and stop are where to start relative to the free_arr array (1,9	1927	* start and stop are where to start relative to the free_arr array (1,9
2211	* does all 4 immediate directions). This returns the index into the	1928	* does all 4 immediate directions). This returns the index into the
2212	* array of the free spot, -1 if no spot available (dir 0 = x,y)	1929	* array of the free spot, -1 if no spot available (dir 0 = x,y)
2213	* Note - this only checks to see if there is space for the head of the
2214	* object - if it is a multispace object, this should be called for all
2215	* pieces.
2216	* Note2: This function does correctly handle tiled maps, but does not	1930	* Note: This function does correctly handle tiled maps, but does not
2217	* inform the caller. However, insert_ob_in_map will update as	1931	* inform the caller. However, insert_ob_in_map will update as
2218	* necessary, so the caller shouldn't need to do any special work.	1932	* necessary, so the caller shouldn't need to do any special work.
2219	* Note - updated to take an object instead of archetype - this is necessary	1933	* Note - updated to take an object instead of archetype - this is necessary
2220	* because arch_blocked (now ob_blocked) needs to know the movement type	1934	* because arch_blocked (now ob_blocked) needs to know the movement type
2221	* to know if the space in question will block the object. We can't use	1935	* to know if the space in question will block the object. We can't use
2222	* the archetype because that isn't correct if the monster has been	1936	* the archetype because that isn't correct if the monster has been
2223	* customized, changed states, etc.	1937	* customized, changed states, etc.
2224	*/	1938	*/
2225
2226	int	1939	int
2227	find_free_spot (const object *ob, mapstruct *m, int x, int y, int start, int stop)	1940	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)
2228	{	1941	{
2229	int
2230	i,
2231	index = 0, flag;
2232	static int
2233	altern[SIZEOFFREE];	1942	int altern[SIZEOFFREE];
		1943	int index = 0, flag;
2234		1944
2235	for (i = start; i < stop; i++)	1945	for (int i = start; i < stop; i++)
2236	{	1946	{
2237	flag = ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]);	1947	mapxy pos (m, x, y); pos.move (i);
2238	if (!flag)	1948
		1949	if (!pos.normalise ())
		1950	continue;
		1951
		1952	mapspace &ms = *pos;
		1953
		1954	if (ms.flags () & P_IS_ALIVE)
		1955	continue;
		1956
		1957	/* However, often
		1958	* ob doesn't have any move type (when used to place exits)
		1959	* so the AND operation in OB_TYPE_MOVE_BLOCK doesn't work.
		1960	*/
		1961	if (ob && ob->move_type == 0 && ms.move_block != MOVE_ALL)
		1962	{
2239	altern[index++] = i;	1963	altern [index++] = i;
		1964	continue;
		1965	}
2240		1966
2241	/* Basically, if we find a wall on a space, we cut down the search size.	1967	/* Basically, if we find a wall on a space, we cut down the search size.
2242	* In this way, we won't return spaces that are on another side of a wall.	1968	* In this way, we won't return spaces that are on another side of a wall.
2243	* This mostly work, but it cuts down the search size in all directions -	1969	* This mostly work, but it cuts down the search size in all directions -
2244	* if the space being examined only has a wall to the north and empty	1970	* if the space being examined only has a wall to the north and empty
2245	* spaces in all the other directions, this will reduce the search space	1971	* spaces in all the other directions, this will reduce the search space
2246	* to only the spaces immediately surrounding the target area, and	1972	* to only the spaces immediately surrounding the target area, and
2247	* won't look 2 spaces south of the target space.	1973	* won't look 2 spaces south of the target space.
2248	*/	1974	*/
2249	else if ((flag & AB_NO_PASS) && maxfree[i] < stop)	1975	if (ms.move_block == MOVE_ALL && maxfree[i] < stop)
		1976	{
2250	stop = maxfree[i];	1977	stop = maxfree[i];
		1978	continue;
		1979	}
		1980
		1981	/* Note it is intentional that we check ob - the movement type of the
		1982	* head of the object should correspond for the entire object.
		1983	*/
		1984	if (OB_TYPE_MOVE_BLOCK (ob, ms.move_block))
		1985	continue;
		1986
		1987	if (ob->blocked (m, pos.x, pos.y))
		1988	continue;
		1989
		1990	altern [index++] = i;
2251	}	1991	}
		1992
2252	if (!index)	1993	if (!index)
2253	return -1;	1994	return -1;
		1995
2254	return altern[RANDOM () % index];	1996	return altern [rndm (index)];
2255	}	1997	}
2256		1998
2257	/*	1999	/*
2258	* find_first_free_spot(archetype, mapstruct, x, y) works like	2000	* find_first_free_spot(archetype, maptile, x, y) works like
2259	* find_free_spot(), but it will search max number of squares.	2001	* find_free_spot(), but it will search max number of squares.
2260	* But it will return the first available spot, not a random choice.	2002	* But it will return the first available spot, not a random choice.
2261	* Changed 0.93.2: Have it return -1 if there is no free spot available.	2003	* Changed 0.93.2: Have it return -1 if there is no free spot available.
2262	*/	2004	*/
2263
2264	int	2005	int
2265	find_first_free_spot (const object *ob, mapstruct *m, int x, int y)	2006	find_first_free_spot (const object *ob, maptile *m, int x, int y)
2266	{	2007	{
2267	int
2268	i;
2269
2270	for (i = 0; i < SIZEOFFREE; i++)	2008	for (int i = 0; i < SIZEOFFREE; i++)
2271	{
2272	if (!ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]))	2009	if (!ob->blocked (m, x + freearr_x[i], y + freearr_y[i]))
2273	return i;	2010	return i;
2274	}	2011
2275	return -1;	2012	return -1;
2276	}	2013	}
2277		2014
2278	/*	2015	/*
2279	* The function permute(arr, begin, end) randomly reorders the array	2016	* The function permute(arr, begin, end) randomly reorders the array
2280	* arr[begin..end-1].	2017	* arr[begin..end-1].
		2018	* now uses a fisher-yates shuffle, old permute was broken
2281	*/	2019	*/
2282	static void	2020	static void
2283	permute (int *arr, int begin, int end)	2021	permute (int *arr, int begin, int end)
2284	{	2022	{
2285	int	2023	arr += begin;
2286	i,
2287	j,
2288	tmp,
2289	len;
2290
2291	len = end - begin;	2024	end -= begin;
2292	for (i = begin; i < end; i++)
2293	{
2294	j = begin + RANDOM () % len;
2295		2025
2296	tmp = arr[i];	2026	while (--end)
2297	arr[i] = arr[j];	2027	swap (arr [end], arr [rndm (end + 1)]);
2298	arr[j] = tmp;
2299	}
2300	}	2028	}
2301		2029
2302	/* new function to make monster searching more efficient, and effective!	2030	/* new function to make monster searching more efficient, and effective!
2303	* This basically returns a randomized array (in the passed pointer) of	2031	* This basically returns a randomized array (in the passed pointer) of
2304	* the spaces to find monsters. In this way, it won't always look for	2032	* the spaces to find monsters. In this way, it won't always look for
…		…
2307	* the 3x3 area will be searched, just not in a predictable order.	2035	* the 3x3 area will be searched, just not in a predictable order.
2308	*/	2036	*/
2309	void	2037	void
2310	get_search_arr (int *search_arr)	2038	get_search_arr (int *search_arr)
2311	{	2039	{
2312	int	2040	int i;
2313	i;
2314		2041
2315	for (i = 0; i < SIZEOFFREE; i++)	2042	for (i = 0; i < SIZEOFFREE; i++)
2316	{
2317	search_arr[i] = i;	2043	search_arr[i] = i;
2318	}
2319		2044
2320	permute (search_arr, 1, SIZEOFFREE1 + 1);	2045	permute (search_arr, 1, SIZEOFFREE1 + 1);
2321	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);	2046	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);
2322	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);	2047	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);
2323	}	2048	}
…		…
2332	* Perhaps incorrectly, but I'm making the assumption that exclude	2057	* Perhaps incorrectly, but I'm making the assumption that exclude
2333	* is actually want is going to try and move there. We need this info	2058	* is actually want is going to try and move there. We need this info
2334	* because we have to know what movement the thing looking to move	2059	* because we have to know what movement the thing looking to move
2335	* there is capable of.	2060	* there is capable of.
2336	*/	2061	*/
2337
2338	int	2062	int
2339	find_dir (mapstruct *m, int x, int y, object *exclude)	2063	find_dir (maptile *m, int x, int y, object *exclude)
2340	{	2064	{
2341	int
2342	i,
2343	max = SIZEOFFREE, mflags;	2065	int i, max = SIZEOFFREE, mflags;
2344		2066
2345	sint16 nx, ny;	2067	sint16 nx, ny;
2346	object *	2068	object *tmp;
2347	tmp;	2069	maptile *mp;
2348	mapstruct *
2349	mp;
2350		2070
2351	MoveType blocked, move_type;	2071	MoveType blocked, move_type;
2352		2072
2353	if (exclude && exclude->head)	2073	if (exclude && exclude->head_ () != exclude)
2354	{	2074	{
2355	exclude = exclude->head;	2075	exclude = exclude->head;
2356	move_type = exclude->move_type;	2076	move_type = exclude->move_type;
2357	}	2077	}
2358	else	2078	else
…		…
2366	mp = m;	2086	mp = m;
2367	nx = x + freearr_x[i];	2087	nx = x + freearr_x[i];
2368	ny = y + freearr_y[i];	2088	ny = y + freearr_y[i];
2369		2089
2370	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);	2090	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);
		2091
2371	if (mflags & P_OUT_OF_MAP)	2092	if (mflags & P_OUT_OF_MAP)
2372	{
2373	max = maxfree[i];	2093	max = maxfree[i];
2374	}
2375	else	2094	else
2376	{	2095	{
2377	blocked = GET_MAP_MOVE_BLOCK (mp, nx, ny);	2096	mapspace &ms = mp->at (nx, ny);
		2097
		2098	blocked = ms.move_block;
2378		2099
2379	if ((move_type & blocked) == move_type)	2100	if ((move_type & blocked) == move_type)
2380	{
2381	max = maxfree[i];	2101	max = maxfree[i];
2382	}
2383	else if (mflags & P_IS_ALIVE)	2102	else if (mflags & P_IS_ALIVE)
2384	{	2103	{
2385	for (tmp = GET_MAP_OB (mp, nx, ny); tmp != NULL; tmp = tmp->above)	2104	for (tmp = ms.bot; tmp; tmp = tmp->above)
2386	{	2105	if ((tmp->flag [FLAG_MONSTER] || tmp->type == PLAYER)
2387	if ((QUERY_FLAG (tmp, FLAG_MONSTER) || tmp->type == PLAYER) && (tmp != exclude || (tmp->head && tmp->head != exclude)))	2106	&& (tmp != exclude || (tmp->head_ () != tmp && tmp->head_ () != exclude)))
2388	{
2389	break;	2107	break;
2390	}	2108
2391	}
2392	if (tmp)	2109	if (tmp)
2393	{
2394	return freedir[i];	2110	return freedir[i];
2395	}
2396	}	2111	}
2397	}	2112	}
2398	}	2113	}
		2114
2399	return 0;	2115	return 0;
2400	}	2116	}
2401		2117
2402	/*	2118	/*
2403	* distance(object 1, object 2) will return the square of the	2119	* distance(object 1, object 2) will return the square of the
2404	* distance between the two given objects.	2120	* distance between the two given objects.
2405	*/	2121	*/
2406
2407	int	2122	int
2408	distance (const object *ob1, const object *ob2)	2123	distance (const object *ob1, const object *ob2)
2409	{	2124	{
2410	int
2411	i;
2412
2413	i = (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);	2125	return (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);
2414	return i;
2415	}	2126	}
2416		2127
2417	/*	2128	/*
2418	* find_dir_2(delta-x,delta-y) will return a direction in which	2129	* find_dir_2(delta-x,delta-y) will return a direction in which
2419	* an object which has subtracted the x and y coordinates of another	2130	* an object which has subtracted the x and y coordinates of another
2420	* object, needs to travel toward it.	2131	* object, needs to travel toward it.
2421	*/	2132	*/
2422
2423	int	2133	int
2424	find_dir_2 (int x, int y)	2134	find_dir_2 (int x, int y)
2425	{	2135	{
2426	int	2136	int q;
2427	q;
2428		2137
2429	if (y)	2138	if (y)
2430	q = x * 100 / y;	2139	q = x * 100 / y;
2431	else if (x)	2140	else if (x)
2432	q = -300 * x;	2141	q = -300 * x;
…		…
2457		2166
2458	return 3;	2167	return 3;
2459	}	2168	}
2460		2169
2461	/*	2170	/*
2462	* absdir(int): Returns a number between 1 and 8, which represent
2463	* the "absolute" direction of a number (it actually takes care of
2464	* "overflow" in previous calculations of a direction).
2465	*/
2466
2467	int
2468	absdir (int d)
2469	{
2470	while (d < 1)
2471	d += 8;
2472	while (d > 8)
2473	d -= 8;
2474	return d;
2475	}
2476
2477	/*
2478	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is	2171	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is
2479	* between two directions (which are expected to be absolute (see absdir())	2172	* between two directions (which are expected to be absolute (see absdir())
2480	*/	2173	*/
2481
2482	int	2174	int
2483	dirdiff (int dir1, int dir2)	2175	dirdiff (int dir1, int dir2)
2484	{	2176	{
2485	int	2177	int d;
2486	d;
2487		2178
2488	d = abs (dir1 - dir2);	2179	d = abs (dir1 - dir2);
2489	if (d > 4)	2180	if (d > 4)
2490	d = 8 - d;	2181	d = 8 - d;
		2182
2491	return d;	2183	return d;
2492	}	2184	}
2493		2185
2494	/* peterm:	2186	/* peterm:
2495	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.	2187	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.
…		…
2498	* This basically means that if direction is 15, then it could either go	2190	* This basically means that if direction is 15, then it could either go
2499	* direction 4, 14, or 16 to get back to where we are.	2191	* direction 4, 14, or 16 to get back to where we are.
2500	* Moved from spell_util.c to object.c with the other related direction	2192	* Moved from spell_util.c to object.c with the other related direction
2501	* functions.	2193	* functions.
2502	*/	2194	*/
2503
2504	int
2505	reduction_dir[SIZEOFFREE][3] = {	2195	int reduction_dir[SIZEOFFREE][3] = {
2506	{0, 0, 0}, /* 0 */	2196	{0, 0, 0}, /* 0 */
2507	{0, 0, 0}, /* 1 */	2197	{0, 0, 0}, /* 1 */
2508	{0, 0, 0}, /* 2 */	2198	{0, 0, 0}, /* 2 */
2509	{0, 0, 0}, /* 3 */	2199	{0, 0, 0}, /* 3 */
2510	{0, 0, 0}, /* 4 */	2200	{0, 0, 0}, /* 4 */
…		…
2558	* find a path to that monster that we found. If not,	2248	* find a path to that monster that we found. If not,
2559	* we don't bother going toward it. Returns 1 if we	2249	* we don't bother going toward it. Returns 1 if we
2560	* can see a direct way to get it	2250	* can see a direct way to get it
2561	* Modified to be map tile aware -.MSW	2251	* Modified to be map tile aware -.MSW
2562	*/	2252	*/
2563
2564
2565	int	2253	int
2566	can_see_monsterP (mapstruct *m, int x, int y, int dir)	2254	can_see_monsterP (maptile *m, int x, int y, int dir)
2567	{	2255	{
2568	sint16 dx, dy;	2256	sint16 dx, dy;
2569	int
2570	mflags;	2257	int mflags;
2571		2258
2572	if (dir < 0)	2259	if (dir < 0)
2573	return 0; /* exit condition: invalid direction */	2260	return 0; /* exit condition: invalid direction */
2574		2261
2575	dx = x + freearr_x[dir];	2262	dx = x + freearr_x[dir];
…		…
2588	return 0;	2275	return 0;
2589		2276
2590	/* yes, can see. */	2277	/* yes, can see. */
2591	if (dir < 9)	2278	if (dir < 9)
2592	return 1;	2279	return 1;
		2280
2593	return can_see_monsterP (m, x, y, reduction_dir[dir][0]) |	2281	return can_see_monsterP (m, x, y, reduction_dir[dir][0])
2594	can_see_monsterP (m, x, y, reduction_dir[dir][1]) | can_see_monsterP (m, x, y, reduction_dir[dir][2]);	2282	| can_see_monsterP (m, x, y, reduction_dir[dir][1])
		2283	| can_see_monsterP (m, x, y, reduction_dir[dir][2]);
2595	}	2284	}
2596
2597
2598		2285
2599	/*	2286	/*
2600	* can_pick(picker, item): finds out if an object is possible to be	2287	* can_pick(picker, item): finds out if an object is possible to be
2601	* picked up by the picker. Returnes 1 if it can be	2288	* picked up by the picker. Returnes 1 if it can be
2602	* picked up, otherwise 0.	2289	* picked up, otherwise 0.
…		…
2604	* Cf 0.91.3 - don't let WIZ's pick up anything - will likely cause	2291	* Cf 0.91.3 - don't let WIZ's pick up anything - will likely cause
2605	* core dumps if they do.	2292	* core dumps if they do.
2606	*	2293	*
2607	* Add a check so we can't pick up invisible objects (0.93.8)	2294	* Add a check so we can't pick up invisible objects (0.93.8)
2608	*/	2295	*/
2609
2610	int	2296	int
2611	can_pick (const object *who, const object *item)	2297	can_pick (const object *who, const object *item)
2612	{	2298	{
2613	return /*QUERY_FLAG(who,FLAG_WIZ)|| */	2299	return /*QUERY_FLAG(who,FLAG_WIZ)|| */
2614	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&	2300	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&
2615	!QUERY_FLAG (item, FLAG_ALIVE) && !item->invisible && (who->type == PLAYER || item->weight < who->weight / 3));	2301	!QUERY_FLAG (item, FLAG_ALIVE) && !item->invisible && (who->type == PLAYER || item->weight < who->weight / 3));
2616	}	2302	}
2617		2303
2618
2619	/*	2304	/*
2620	* create clone from object to another	2305	* create clone from object to another
2621	*/	2306	*/
2622	object *	2307	object *
2623	object_create_clone (object *asrc)	2308	object::deep_clone ()
2624	{	2309	{
2625	object *	2310	assert (("deep_clone called on non-head object", is_head ()));
2626	dst = NULL, *tmp, *src, *part, *prev, *item;
2627		2311
2628	if (!asrc)	2312	object *dst = clone ();
2629	return NULL;
2630	src = asrc;
2631	if (src->head)
2632	src = src->head;
2633		2313
2634	prev = NULL;	2314	object *prev = dst;
2635	for (part = src; part; part = part->more)	2315	for (object *part = this->more; part; part = part->more)
2636	{	2316	{
2637	tmp = get_object ();	2317	object *tmp = part->clone ();
2638	copy_object (part, tmp);
2639	tmp->x -= src->x;
2640	tmp->y -= src->y;
2641	if (!part->head)
2642	{
2643	dst = tmp;
2644	tmp->head = NULL;
2645	}
2646	else
2647	{
2648	tmp->head = dst;	2318	tmp->head = dst;
2649	}
2650	tmp->more = NULL;
2651	if (prev)
2652	prev->more = tmp;	2319	prev->more = tmp;
2653	prev = tmp;	2320	prev = tmp;
2654	}	2321	}
2655		2322
2656	/*** copy inventory ***/
2657	for (item = src->inv; item; item = item->below)	2323	for (object *item = inv; item; item = item->below)
2658	{	2324	insert_ob_in_ob (item->deep_clone (), dst);
2659	(void) insert_ob_in_ob (object_create_clone (item), dst);
2660	}
2661		2325
2662	return dst;	2326	return dst;
2663	}
2664
2665	/* return true if the object was destroyed, 0 otherwise */
2666	int
2667	was_destroyed (const object *op, tag_t old_tag)
2668	{
2669	/* checking for FLAG_FREED isn't necessary, but makes this function more
2670	* robust */
2671	return op->count != old_tag || QUERY_FLAG (op, FLAG_FREED);
2672	}
2673
2674	/* GROS - Creates an object using a string representing its content. */
2675
2676	/* Basically, we save the content of the string to a temp file, then call */
2677
2678	/* load_object on it. I admit it is a highly inefficient way to make things, */
2679
2680	/* but it was simple to make and allows reusing the load_object function. */
2681
2682	/* Remember not to use load_object_str in a time-critical situation. */
2683
2684	/* Also remember that multiparts objects are not supported for now. */
2685
2686	object *
2687	load_object_str (const char *obstr)
2688	{
2689	object *
2690	op;
2691	char
2692	filename[MAX_BUF];
2693
2694	sprintf (filename, "%s/cfloadobstr2044", settings.tmpdir);
2695
2696	FILE *
2697	tempfile = fopen (filename, "w");
2698
2699	if (tempfile == NULL)
2700	{
2701	LOG (llevError, "Error - Unable to access load object temp file\n");
2702	return NULL;
2703	}
2704
2705	fprintf (tempfile, obstr);
2706	fclose (tempfile);
2707
2708	op = get_object ();
2709
2710	object_thawer thawer (filename);
2711
2712	if (thawer)
2713	load_object (thawer, op, 0);
2714
2715	LOG (llevDebug, " load str completed, object=%s\n", &op->name);
2716	CLEAR_FLAG (op, FLAG_REMOVED);
2717
2718	return op;
2719	}	2327	}
2720		2328
2721	/* This returns the first object in who's inventory that	2329	/* This returns the first object in who's inventory that
2722	* has the same type and subtype match.	2330	* has the same type and subtype match.
2723	* returns NULL if no match.	2331	* returns NULL if no match.
2724	*/	2332	*/
2725	object *	2333	object *
2726	find_obj_by_type_subtype (const object *who, int type, int subtype)	2334	find_obj_by_type_subtype (const object *who, int type, int subtype)
2727	{	2335	{
2728	object *
2729	tmp;
2730
2731	for (tmp = who->inv; tmp; tmp = tmp->below)	2336	for (object *tmp = who->inv; tmp; tmp = tmp->below)
2732	if (tmp->type == type && tmp->subtype == subtype)	2337	if (tmp->type == type && tmp->subtype == subtype)
2733	return tmp;	2338	return tmp;
2734		2339
2735	return NULL;
2736	}
2737
2738	/* If ob has a field named key, return the link from the list,
2739	* otherwise return NULL.
2740	*
2741	* key must be a passed in shared string - otherwise, this won't
2742	* do the desired thing.
2743	*/
2744	key_value *
2745	get_ob_key_link (const object *ob, const char *key)
2746	{
2747	key_value *
2748	link;
2749
2750	for (link = ob->key_values; link != NULL; link = link->next)
2751	{
2752	if (link->key == key)
2753	{
2754	return link;
2755	}
2756	}
2757
2758	return NULL;
2759	}
2760
2761	/*
2762	* Returns the value of op has an extra_field for key, or NULL.
2763	*
2764	* The argument doesn't need to be a shared string.
2765	*
2766	* The returned string is shared.
2767	*/
2768	const char *
2769	get_ob_key_value (const object *op, const char *const key)
2770	{
2771	key_value *link;
2772	shstr_cmp canonical_key (key);
2773
2774	if (!canonical_key)
2775	{
2776	/* 1. There being a field named key on any object
2777	* implies there'd be a shared string to find.
2778	* 2. Since there isn't, no object has this field.
2779	* 3. Therefore, *this* object doesn't have this field.
2780	*/
2781	return 0;
2782	}
2783
2784	/* This is copied from get_ob_key_link() above -
2785	* only 4 lines, and saves the function call overhead.
2786	*/
2787	for (link = op->key_values; link; link = link->next)
2788	if (link->key == canonical_key)
2789	return link->value;
2790
2791	return 0;	2340	return 0;
2792	}	2341	}
2793		2342
2794		2343	const shstr &
2795	/*	2344	object::kv_get (const shstr &key) const
2796	* Updates the canonical_key in op to value.
2797	*
2798	* canonical_key is a shared string (value doesn't have to be).
2799	*
2800	* Unless add_key is TRUE, it won't add fields, only change the value of existing
2801	* keys.
2802	*
2803	* Returns TRUE on success.
2804	*/
2805	int
2806	set_ob_key_value_s (object *op, const shstr & canonical_key, const char *value, int add_key)
2807	{	2345	{
2808	key_value *	2346	for (key_value *kv = key_values; kv; kv = kv->next)
2809	field = NULL, *last = NULL;	2347	if (kv->key == key)
		2348	return kv->value;
2810		2349
2811	for (field = op->key_values; field != NULL; field = field->next)	2350	return shstr_null;
2812	{	2351	}
2813	if (field->key != canonical_key)	2352
		2353	void
		2354	object::kv_set (const shstr &key, const shstr &value)
		2355	{
		2356	for (key_value *kv = key_values; kv; kv = kv->next)
		2357	if (kv->key == key)
2814	{	2358	{
2815	last = field;	2359	kv->value = value;
2816	continue;	2360	return;
2817	}	2361	}
2818		2362
2819	if (value)	2363	key_value *kv = new key_value;
2820	field->value = value;	2364
2821	else	2365	kv->next = key_values;
		2366	kv->key = key;
		2367	kv->value = value;
		2368
		2369	key_values = kv;
		2370	}
		2371
		2372	void
		2373	object::kv_del (const shstr &key)
		2374	{
		2375	for (key_value **kvp = &key_values; *kvp; kvp = &(*kvp)->next)
		2376	if ((*kvp)->key == key)
2822	{	2377	{
2823	/* Basically, if the archetype has this key set,	2378	key_value *kv = *kvp;
2824	* we need to store the null value so when we save	2379	*kvp = (*kvp)->next;
2825	* it, we save the empty value so that when we load,	2380	delete kv;
2826	* we get this value back again.	2381	return;
2827	*/
2828	if (get_ob_key_link (&op->arch->clone, canonical_key))
2829	field->value = 0;
2830	else
2831	{
2832	if (last)
2833	last->next = field->next;
2834	else
2835	op->key_values = field->next;
2836
2837	delete field;
2838	}
2839	}	2382	}
2840	return TRUE;
2841	}
2842	/* IF we get here, key doesn't exist */
2843
2844	/* No field, we'll have to add it. */
2845
2846	if (!add_key)
2847	{
2848	return FALSE;
2849	}
2850	/* There isn't any good reason to store a null
2851	* value in the key/value list. If the archetype has
2852	* this key, then we should also have it, so shouldn't
2853	* be here. If user wants to store empty strings,
2854	* should pass in ""
2855	*/
2856	if (value == NULL)
2857	return TRUE;
2858
2859	field = new key_value;
2860
2861	field->key = canonical_key;
2862	field->value = value;
2863	/* Usual prepend-addition. */
2864	field->next = op->key_values;
2865	op->key_values = field;
2866
2867	return TRUE;
2868	}
2869
2870	/*
2871	* Updates the key in op to value.
2872	*
2873	* If add_key is FALSE, this will only update existing keys,
2874	* and not add new ones.
2875	* In general, should be little reason FALSE is ever passed in for add_key
2876	*
2877	* Returns TRUE on success.
2878	*/
2879	int
2880	set_ob_key_value (object *op, const char *key, const char *value, int add_key)
2881	{
2882	shstr key_ (key);
2883
2884	return set_ob_key_value_s (op, key_, value, add_key);
2885	}	2383	}
2886		2384
2887	object::depth_iterator::depth_iterator (object *container)	2385	object::depth_iterator::depth_iterator (object *container)
2888	: iterator_base (container)	2386	: iterator_base (container)
2889	{	2387	{
…		…
2903	}	2401	}
2904	else	2402	else
2905	item = item->env;	2403	item = item->env;
2906	}	2404	}
2907		2405
		2406	const char *
		2407	object::flag_desc (char *desc, int len) const
		2408	{
		2409	char *p = desc;
		2410	bool first = true;
		2411
		2412	*p = 0;
		2413
		2414	for (int i = 0; i < NUM_FLAGS; i++)
		2415	{
		2416	if (len <= 10) // magic constant!
		2417	{
		2418	snprintf (p, len, ",...");
		2419	break;
		2420	}
		2421
		2422	if (flag [i])
		2423	{
		2424	int cnt = snprintf (p, len, "%s%d", first ? "" : ",", i);
		2425	len -= cnt;
		2426	p += cnt;
		2427	first = false;
		2428	}
		2429	}
		2430
		2431	return desc;
		2432	}
		2433
2908	// return a suitable string describing an objetc in enough detail to find it	2434	// return a suitable string describing an object in enough detail to find it
2909	const char *	2435	const char *
2910	object::debug_desc (char *info) const	2436	object::debug_desc (char *info) const
2911	{	2437	{
		2438	char flagdesc[512];
2912	char info2[256 * 3];	2439	char info2[256 * 4];
2913	char *p = info;	2440	char *p = info;
2914		2441
2915	p += snprintf (p, 256, "%d=\"%s%s%s\"",	2442	p += snprintf (p, 512, "{cnt:%d,uuid:%s,name:\"%s\"%s%s%s,flags:[%s],type:%d}",
2916	count,	2443	count,
		2444	uuid.c_str (),
2917	&name,	2445	&name,
2918	title ? " " : "",	2446	title ? ",title:\"" : "",
2919	title ? (const char *)title : "");	2447	title ? (const char *)title : "",
		2448	title ? "\"" : "",
		2449	flag_desc (flagdesc, 512), type);
2920		2450
2921	if (env)	2451	if (!flag[FLAG_REMOVED] && env)
2922	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));	2452	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));
2923		2453
2924	if (map)	2454	if (map)
2925	p += snprintf (p, 256, "(on %s@%d+%d)", map->path, x, y);	2455	p += snprintf (p, 256, "(on %s@%d+%d)", &map->path, x, y);
2926		2456
2927	return info;	2457	return info;
2928	}	2458	}
2929		2459
2930	const char *	2460	const char *
2931	object::debug_desc () const	2461	object::debug_desc () const
2932	{	2462	{
2933	static char info[256 * 3];	2463	static char info[3][256 * 4];
		2464	static int info_idx;
		2465
2934	return debug_desc (info);	2466	return debug_desc (info [++info_idx % 3]);
2935	}	2467	}
2936		2468
		2469	struct region *
		2470	object::region () const
		2471	{
		2472	return map ? map->region (x, y)
		2473	: region::default_region ();
		2474	}
		2475
		2476	const materialtype_t *
		2477	object::dominant_material () const
		2478	{
		2479	if (materialtype_t *mt = name_to_material (materialname))
		2480	return mt;
		2481
		2482	return name_to_material (shstr_unknown);
		2483	}
		2484
		2485	void
		2486	object::open_container (object *new_container)
		2487	{
		2488	if (container == new_container)
		2489	return;
		2490
		2491	object *old_container = container;
		2492
		2493	if (old_container)
		2494	{
		2495	if (INVOKE_OBJECT (CLOSE, old_container, ARG_OBJECT (this)))
		2496	return;
		2497
		2498	#if 0
		2499	// remove the "Close old_container" object.
		2500	if (object *closer = old_container->inv)
		2501	if (closer->type == CLOSE_CON)
		2502	closer->destroy ();
		2503	#endif
		2504
		2505	// make sure the container is available
		2506	esrv_send_item (this, old_container);
		2507
		2508	old_container->flag [FLAG_APPLIED] = false;
		2509	container = 0;
		2510
		2511	// client needs item update to make it work, client bug requires this to be separate
		2512	esrv_update_item (UPD_FLAGS, this, old_container);
		2513
		2514	new_draw_info_format (NDI_UNIQUE, 0, this, "You close %s.", query_name (old_container));
		2515	play_sound (sound_find ("chest_close"));
		2516	}
		2517
		2518	if (new_container)
		2519	{
		2520	if (INVOKE_OBJECT (OPEN, new_container, ARG_OBJECT (this)))
		2521	return;
		2522
		2523	// TODO: this does not seem to serve any purpose anymore?
		2524	#if 0
		2525	// insert the "Close Container" object.
		2526	if (archetype *closer = new_container->other_arch)
		2527	{
		2528	object *closer = arch_to_object (new_container->other_arch);
		2529	closer->flag [FLAG_NO_MAP_SAVE] = 1;
		2530	new_container->insert (closer);
		2531	}
		2532	#endif
		2533
		2534	new_draw_info_format (NDI_UNIQUE, 0, this, "You open %s.", query_name (new_container));
		2535
		2536	// make sure the container is available, client bug requires this to be separate
		2537	esrv_send_item (this, new_container);
		2538
		2539	new_container->flag [FLAG_APPLIED] = true;
		2540	container = new_container;
		2541
		2542	// client needs flag change
		2543	esrv_update_item (UPD_FLAGS, this, new_container);
		2544	esrv_send_inventory (this, new_container);
		2545	play_sound (sound_find ("chest_open"));
		2546	}
		2547	// else if (!old_container->env && contr && contr->ns)
		2548	// contr->ns->floorbox_reset ();
		2549	}
		2550
		2551	object *
		2552	object::force_find (const shstr name)
		2553	{
		2554	/* cycle through his inventory to look for the MARK we want to
		2555	* place
		2556	*/
		2557	for (object *tmp = inv; tmp; tmp = tmp->below)
		2558	if (tmp->type == FORCE && tmp->slaying == name)
		2559	return splay (tmp);
		2560
		2561	return 0;
		2562	}
		2563
		2564	void
		2565	object::force_add (const shstr name, int duration)
		2566	{
		2567	if (object *force = force_find (name))
		2568	force->destroy ();
		2569
		2570	object *force = get_archetype (FORCE_NAME);
		2571
		2572	force->slaying = name;
		2573	force->stats.food = 1;
		2574	force->speed_left = -1.f;
		2575
		2576	force->set_speed (duration ? 1.f / duration : 0.f);
		2577	force->flag [FLAG_IS_USED_UP] = true;
		2578	force->flag [FLAG_APPLIED] = true;
		2579
		2580	insert (force);
		2581	}
		2582
		2583	void
		2584	object::play_sound (faceidx sound)
		2585	{
		2586	if (!sound)
		2587	return;
		2588
		2589	if (flag [FLAG_REMOVED])
		2590	return;
		2591
		2592	if (env)
		2593	{
		2594	if (object *pl = in_player ())
		2595	pl->contr->play_sound (sound);
		2596	}
		2597	else
		2598	map->play_sound (sound, x, y);
		2599	}
		2600

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