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Comparing deliantra/server/common/object.C (file contents):
Revision 1.42 by root, Thu Sep 14 01:19:47 2006 UTC vs.
Revision 1.242 by elmex, Wed May 7 21:00:02 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->name != ob2->arch->name
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
246	(ob1->client_type != ob2->client_type) ||	222	|| ob1->client_type != ob2->client_type
247	(ob1->materialname != ob2->materialname) ||	223	|| ob1->materialname != ob2->materialname
248	(ob1->lore != ob2->lore) ||	224	|| ob1->lore != ob2->lore
249	(ob1->subtype != ob2->subtype) ||	225	|| ob1->subtype != ob2->subtype
250	(ob1->move_type != ob2->move_type) ||	226	|| ob1->move_type != ob2->move_type
251	(ob1->move_block != ob2->move_block) ||	227	|| ob1->move_block != ob2->move_block
252	(ob1->move_allow != ob2->move_allow) ||	228	|| ob1->move_allow != ob2->move_allow
253	(ob1->move_on != ob2->move_on) ||	229	|| 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))	230	|| ob1->move_off != ob2->move_off
		231	|| ob1->move_slow != ob2->move_slow
		232	|| ob1->move_slow_penalty != ob2->move_slow_penalty
		233	|| memcmp (&ob1->resist, &ob2->resist, sizeof (ob1->resist))
		234	|| memcmp (&ob1->stats , &ob2->stats , sizeof (ob1->stats)))
255	return 0;	235	return 0;
256		236
		237	if ((ob1->flag ^ ob2->flag)
		238	.reset (FLAG_INV_LOCKED)
		239	.reset (FLAG_CLIENT_SENT)
		240	.reset (FLAG_REMOVED)
		241	.any ())
		242	return 0;
		243
257	/* This is really a spellbook check - really, we should	244	/* This is really a spellbook check - we should in general
258	* check all objects in the inventory.	245	* not merge objects with real inventories, as splitting them
		246	* is hard.
259	*/	247	*/
260	if (ob1->inv || ob2->inv)	248	if (ob1->inv || ob2->inv)
261	{	249	{
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))	250	if (!(ob1->inv && ob2->inv))
268	return 0;	251	return 0; /* inventories differ in length */
		252
		253	if (ob1->inv->below || ob2->inv->below)
		254	return 0; /* more than one object in inv */
		255
		256	if (!object::can_merge (ob1->inv, ob2->inv))
		257	return 0; /* inventory objects differ */
269		258
270	/* inventory ok - still need to check rest of this object to see	259	/* inventory ok - still need to check rest of this object to see
271	* if it is valid.	260	* if it is valid.
272	*/	261	*/
273	}	262	}
…		…
281		270
282	/* Note sure why the following is the case - either the object has to	271	/* Note sure why the following is the case - either the object has to
283	* be animated or have a very low speed. Is this an attempted monster	272	* be animated or have a very low speed. Is this an attempted monster
284	* check?	273	* check?
285	*/	274	*/
286	if (!QUERY_FLAG (ob1, FLAG_ANIMATE) && FABS ((ob1)->speed) > MIN_ACTIVE_SPEED)	275	if (!QUERY_FLAG (ob1, FLAG_ANIMATE) && ob1->has_active_speed ())
287	return 0;	276	return 0;
288		277
289	switch (ob1->type)	278	switch (ob1->type)
290	{	279	{
291	case SCROLL:	280	case SCROLL:
292	if (ob1->level != ob2->level)	281	if (ob1->level != ob2->level)
293	return 0;	282	return 0;
294	break;	283	break;
295	}	284	}
296		285
297	if (ob1->key_values != NULL || ob2->key_values != NULL)	286	if (ob1->key_values || ob2->key_values)
298	{	287	{
299	/* At least one of these has key_values. */	288	/* At least one of these has key_values. */
300	if ((ob1->key_values == NULL) != (ob2->key_values == NULL))	289	if ((!ob1->key_values) != (!ob2->key_values))
301	/* One has fields, but the other one doesn't. */	290	return 0; /* One has fields, but the other one doesn't. */
		291
		292	if (!compare_ob_value_lists (ob1, ob2))
302	return 0;	293	return 0;
303	else if (!compare_ob_value_lists (ob1, ob2))
304	return 0;
305	}	294	}
306		295
307	//TODO: generate an event or call into perl for additional checks
308	if (ob1->self || ob2->self)	296	if (ob1->self || ob2->self)
309	{	297	{
310	ob1->optimise ();	298	ob1->optimise ();
311	ob2->optimise ();	299	ob2->optimise ();
312		300
313	if (ob1->self || ob2->self)	301	if (ob1->self || ob2->self)
		302	{
		303	int k1 = ob1->self ? HvTOTALKEYS (ob1->self) : 0;
		304	int k2 = ob2->self ? HvTOTALKEYS (ob2->self) : 0;
		305
		306	if (k1 != k2)
314	return 0;	307	return 0;
		308
		309	if (k1 == 0)
		310	return 1;
		311
		312	if (!cfperl_can_merge (ob1, ob2))
		313	return 0;
		314	}
315	}	315	}
316		316
317	/* Everything passes, must be OK. */	317	/* Everything passes, must be OK. */
318	return 1;	318	return 1;
319	}	319	}
320		320
		321	// find player who can see this object
		322	object *
		323	object::visible_to () const
		324	{
		325	if (client_visible () && !flag [FLAG_REMOVED])
		326	{
		327	// see if we are in a container of sorts
		328	if (env)
		329	{
		330	// the player inventory itself is always visible
		331	if (env->type == PLAYER)
		332	return env;
		333
		334	// else a player could have our env open
		335	object *envest = env->outer_env ();
		336
		337	// the player itself is always on a map, so we will find him here
		338	// even if our inv is in a player.
		339	if (envest->is_on_map ())
		340	if (object *pl = envest->ms ().player ())
		341	if (pl->container == env)
		342	return pl;
		343	}
		344	else
		345	{
		346	// maybe there is a player standing on the same mapspace
		347	// this will catch the case where "this" is a player
		348	if (object *pl = ms ().player ())
		349	if (!pl->container || this == pl->container)
		350	return pl;
		351	}
		352	}
		353
		354	return 0;
		355	}
		356
		357	// adjust weight per container type ("of holding")
		358	static sint32
		359	weight_adjust_for (object *op, sint32 weight)
		360	{
		361	return op->type == CONTAINER
		362	? lerp (weight, 0, 100, 0, 100 - op->stats.Str)
		363	: weight;
		364	}
		365
321	/*	366	/*
		367	* adjust_weight(object, weight) adds the specified weight to an object,
		368	* and also updates how much the environment(s) is/are carrying.
		369	*/
		370	static void
		371	adjust_weight (object *op, sint32 weight)
		372	{
		373	while (op)
		374	{
		375	// adjust by actual difference to account for rounding errors
		376	// i.e. (w2 - w1) / f != w2 / f - w1 / f and the latter is correct
		377	weight = weight_adjust_for (op, op->carrying)
		378	- weight_adjust_for (op, op->carrying - weight);
		379
		380	if (!weight)
		381	return;
		382
		383	op->carrying += weight;
		384
		385	if (object *pl = op->visible_to ())
		386	if (pl != op) // player is handled lazily
		387	esrv_update_item (UPD_WEIGHT, pl, op);
		388
		389	op = op->env;
		390	}
		391	}
		392
		393	/*
322	* sum_weight() is a recursive function which calculates the weight	394	* this is a recursive function which calculates the weight
323	* an object is carrying. It goes through in figures out how much	395	* an object is carrying. It goes through op and figures out how much
324	* containers are carrying, and sums it up.	396	* containers are carrying, and sums it up.
325	*/	397	*/
326	long	398	void
327	sum_weight (object *op)	399	object::update_weight ()
328	{	400	{
329	long sum;	401	sint32 sum = 0;
330	object *inv;
331		402
332	for (sum = 0, inv = op->inv; inv != NULL; inv = inv->below)	403	for (object *op = inv; op; op = op->below)
333	{	404	{
334	if (inv->inv)	405	if (op->inv)
335	sum_weight (inv);	406	op->update_weight ();
336	sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1);	407
		408	sum += op->total_weight ();
		409	}
		410
		411	sum = weight_adjust_for (this, sum);
		412
		413	if (sum != carrying)
337	}	414	{
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;	415	carrying = sum;
344		416
345	return sum;	417	if (object *pl = visible_to ())
346	}	418	if (pl != this) // player is handled lazily
347		419	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	{	420	}
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	}	421	}
430		422
431	/*	423	/*
432	* Dumps an object. Returns output in the static global errmsg array.	424	* Used by: Server DM commands: dumpbelow, dump. Some error messages.
433	*/	425	*/
434		426	char *
435	void
436	dump_object (object *op)	427	dump_object (object *op)
437	{	428	{
438	if (op == NULL)	429	if (!op)
439	{	430	return strdup ("[NULLOBJ]");
440	strcpy (errmsg, "[NULL pointer]");
441	return;
442	}
443	errmsg[0] = '\0';
444	dump_object2 (op);
445	}
446		431
447	void	432	object_freezer freezer;
448	dump_all_objects (void)	433	op->write (freezer);
449	{	434	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	}	435	}
458		436
459	/*	437	/*
460	* get_nearest_part(multi-object, object 2) returns the part of the	438	* get_nearest_part(multi-object, object 2) returns the part of the
461	* multi-object 1 which is closest to the second object.	439	* multi-object 1 which is closest to the second object.
462	* If it's not a multi-object, it is returned.	440	* If it's not a multi-object, it is returned.
463	*/	441	*/
464
465	object *	442	object *
466	get_nearest_part (object *op, const object *pl)	443	get_nearest_part (object *op, const object *pl)
467	{	444	{
468	object *tmp, *closest;	445	object *tmp, *closest;
469	int last_dist, i;	446	int last_dist, i;
470		447
471	if (op->more == NULL)	448	if (!op->more)
472	return op;	449	return op;
		450
473	for (last_dist = distance (op, pl), closest = op, tmp = op->more; tmp != NULL; tmp = tmp->more)	451	for (last_dist = distance (op, pl), closest = op, tmp = op->more;
		452	tmp;
		453	tmp = tmp->more)
474	if ((i = distance (tmp, pl)) < last_dist)	454	if ((i = distance (tmp, pl)) < last_dist)
475	closest = tmp, last_dist = i;	455	closest = tmp, last_dist = i;
		456
476	return closest;	457	return closest;
477	}	458	}
478		459
479	/*	460	/*
480	* Returns the object which has the count-variable equal to the argument.	461	* Returns the object which has the count-variable equal to the argument.
		462	* VERRRY slow.
481	*/	463	*/
482
483	object *	464	object *
484	find_object (tag_t i)	465	find_object (tag_t i)
485	{	466	{
486	object *op;	467	for_all_objects (op)
487
488	for (op = objects; op != NULL; op = op->next)
489	if (op->count == i)	468	if (op->count == i)
490	break;
491	return op;	469	return op;
		470
		471	return 0;
492	}	472	}
493		473
494	/*	474	/*
495	* Returns the first object which has a name equal to the argument.	475	* Returns the first object which has a name equal to the argument.
496	* Used only by the patch command, but not all that useful.	476	* Used only by the patch command, but not all that useful.
497	* Enables features like "patch <name-of-other-player> food 999"	477	* Enables features like "patch <name-of-other-player> food 999"
498	*/	478	*/
499
500	object *	479	object *
501	find_object_name (const char *str)	480	find_object_name (const char *str)
502	{	481	{
503	shstr_cmp str_ (str);	482	shstr_cmp str_ (str);
504	object *op;	483	object *op;
505		484
506	for (op = objects; op != NULL; op = op->next)	485	for_all_objects (op)
507	if (op->name == str_)	486	if (op->name == str_)
508	break;	487	break;
509		488
510	return op;	489	return op;
511	}	490	}
512		491
513	void
514	free_all_object_data ()
515	{
516	LOG (llevDebug, "%d allocated objects\n", nrofallocobjects);
517	}
518
519	/*
520	* Returns the object which this object marks as being the owner.
521	* A id-scheme is used to avoid pointing to objects which have been
522	* freed and are now reused. If this is detected, the owner is
523	* set to NULL, and NULL is returned.
524	* Changed 2004-02-12 - if the player is setting at the play again
525	* prompt, he is removed, and we don't want to treat him as an owner of
526	* anything, so check removed flag. I don't expect that this should break
527	* anything - once an object is removed, it is basically dead anyways.
528	*/
529	object *
530	object::get_owner ()
531	{
532	if (!owner
533	|| QUERY_FLAG (owner, FLAG_FREED)
534	|| QUERY_FLAG (owner, FLAG_REMOVED))
535	owner = 0;
536
537	return owner;
538	}
539
540	/*	492	/*
541	* Sets the owner and sets the skill and exp pointers to owner's current	493	* Sets the owner and sets the skill and exp pointers to owner's current
542	* skill and experience objects.	494	* skill and experience objects.
		495	* ACTUALLY NO! investigate! TODO
543	*/	496	*/
544	void	497	void
545	object::set_owner (object *owner)	498	object::set_owner (object *owner)
546	{	499	{
		500	// allow objects which own objects
547	if (!owner)	501	if (owner)
548	return;
549
550	/* next line added to allow objects which own objects */
551	/* Add a check for ownercounts in here, as I got into an endless loop
552	* with the fireball owning a poison cloud which then owned the
553	* fireball. I believe that was caused by one of the objects getting
554	* freed and then another object replacing it. Since the ownercounts
555	* didn't match, this check is valid and I believe that cause is valid.
556	*/
557	while (owner->owner)	502	while (owner->owner)
558	owner = owner->owner;	503	owner = owner->owner;
		504
		505	if (flag [FLAG_FREED])
		506	{
		507	LOG (llevError | logBacktrace, "tried to set owner of %s to %s\n", debug_desc (), owner->debug_desc ());
		508	return;
		509	}
559		510
560	this->owner = owner;	511	this->owner = owner;
		512	}
		513
		514	int
		515	object::slottype () const
		516	{
		517	if (type == SKILL)
		518	{
		519	if (IS_COMBAT_SKILL (subtype)) return slot_combat;
		520	if (IS_RANGED_SKILL (subtype)) return slot_ranged;
		521	}
		522	else
		523	{
		524	if (slot [body_combat].info) return slot_combat;
		525	if (slot [body_range ].info) return slot_ranged;
		526	}
		527
		528	return slot_none;
		529	}
		530
		531	bool
		532	object::change_weapon (object *ob)
		533	{
		534	if (current_weapon == ob)
		535	return true;
		536
		537	if (chosen_skill)
		538	chosen_skill->flag [FLAG_APPLIED] = false;
		539
		540	current_weapon = ob;
		541	chosen_skill = !ob || ob->type == SKILL ? ob : find_skill_by_name (this, ob->skill);
		542
		543	if (chosen_skill)
		544	chosen_skill->flag [FLAG_APPLIED] = true;
		545
		546	update_stats ();
		547
		548	if (ob)
		549	{
		550	// now check wether any body locations became invalid, in which case
		551	// we cannot apply the weapon at the moment.
		552	for (int i = 0; i < NUM_BODY_LOCATIONS; ++i)
		553	if (slot[i].used < 0)
		554	{
		555	current_weapon = chosen_skill = 0;
		556	update_stats ();
		557
		558	new_draw_info_format (NDI_UNIQUE, 0, this,
		559	"You try to balance all your items at once, "
		560	"but the %s is just too much for your body. "
		561	"[You need to unapply some items first.]", &ob->name);
		562	return false;
		563	}
		564
		565	//new_draw_info_format (NDI_UNIQUE, 0, this, "You switch to your %s.", &ob->name);
		566	}
		567	else
		568	;//new_draw_info_format (NDI_UNIQUE, 0, this, "You unwield your weapons.");
		569
		570	if (ob && !ob->flag [FLAG_APPLIED] && ob->type != SPELL)
		571	{
		572	LOG (llevError | logBacktrace, "%s changed to unapplied weapon %s",
		573	&name, ob->debug_desc ());
		574	return false;
		575	}
		576
		577	return true;
561	}	578	}
562		579
563	/* Zero the key_values on op, decrementing the shared-string	580	/* Zero the key_values on op, decrementing the shared-string
564	* refcounts and freeing the links.	581	* refcounts and freeing the links.
565	*/	582	*/
566	static void	583	static void
567	free_key_values (object *op)	584	free_key_values (object *op)
568	{	585	{
569	for (key_value *i = op->key_values; i != 0;)	586	for (key_value *i = op->key_values; i; )
570	{	587	{
571	key_value *next = i->next;	588	key_value *next = i->next;
572	delete i;	589	delete i;
573		590
574	i = next;	591	i = next;
575	}	592	}
576		593
577	op->key_values = 0;	594	op->key_values = 0;
578	}	595	}
579		596
580	void object::clear ()
581	{
582	attachable_base::clear ();
583
584	free_key_values (this);
585
586	owner = 0;
587	name = 0;
588	name_pl = 0;
589	title = 0;
590	race = 0;
591	slaying = 0;
592	skill = 0;
593	msg = 0;
594	lore = 0;
595	custom_name = 0;
596	materialname = 0;
597	contr = 0;
598	below = 0;
599	above = 0;
600	inv = 0;
601	container = 0;
602	env = 0;
603	more = 0;
604	head = 0;
605	map = 0;
606	active_next = 0;
607	active_prev = 0;
608
609	memset (static_cast<object_pod *>(this), 0, sizeof (object_pod));
610
611	SET_FLAG (this, FLAG_REMOVED);
612
613	/* What is not cleared is next, prev, and count */
614
615	expmul = 1.0;
616	face = blank_face;
617	attacked_by_count = -1;
618
619	if (settings.casting_time)
620	casting_time = -1;
621	}
622
623	void object::clone (object *destination)
624	{
625	*(object_copy *)destination = *this;
626	*(object_pod *)destination = *this;
627
628	if (self || cb)
629	INVOKE_OBJECT (CLONE, this, ARG_OBJECT (destination));
630	}
631
632	/*	597	/*
633	* copy object first frees everything allocated by the second object,	598	* copy_to first frees everything allocated by the dst object,
634	* and then copies the contends of the first object into the second	599	* and then copies the contents of itself into the second
635	* object, allocating what needs to be allocated. Basically, any	600	* object, allocating what needs to be allocated. Basically, any
636	* data that is malloc'd needs to be re-malloc/copied. Otherwise,	601	* data that is malloc'd needs to be re-malloc/copied. Otherwise,
637	* if the first object is freed, the pointers in the new object	602	* if the first object is freed, the pointers in the new object
638	* will point at garbage.	603	* will point at garbage.
639	*/	604	*/
640	void	605	void
641	copy_object (object *op2, object *op)	606	object::copy_to (object *dst)
642	{	607	{
643	bool is_freed = QUERY_FLAG (op, FLAG_FREED);	608	dst->remove ();
644	bool is_removed = QUERY_FLAG (op, FLAG_REMOVED);	609	*(object_copy *)dst = *this;
645		610	dst->flag [FLAG_REMOVED] = true;
646	op2->clone (op);
647
648	if (is_freed)
649	SET_FLAG (op, FLAG_FREED);
650	if (is_removed)
651	SET_FLAG (op, FLAG_REMOVED);
652
653	if (op2->speed < 0)
654	op->speed_left = op2->speed_left - RANDOM () % 200 / 100.0;
655		611
656	/* Copy over key_values, if any. */	612	/* Copy over key_values, if any. */
657	if (op2->key_values)	613	if (key_values)
658	{	614	{
659	key_value *tail = 0;	615	key_value *tail = 0;
660	key_value *i;
661
662	op->key_values = 0;	616	dst->key_values = 0;
663		617
664	for (i = op2->key_values; i; i = i->next)	618	for (key_value *i = key_values; i; i = i->next)
665	{	619	{
666	key_value *new_link = new key_value;	620	key_value *new_link = new key_value;
667		621
668	new_link->next = 0;	622	new_link->next = 0;
669	new_link->key = i->key;	623	new_link->key = i->key;
670	new_link->value = i->value;	624	new_link->value = i->value;
671		625
672	/* Try and be clever here, too. */	626	/* Try and be clever here, too. */
673	if (!op->key_values)	627	if (!dst->key_values)
674	{	628	{
675	op->key_values = new_link;	629	dst->key_values = new_link;
676	tail = new_link;	630	tail = new_link;
677	}	631	}
678	else	632	else
679	{	633	{
680	tail->next = new_link;	634	tail->next = new_link;
681	tail = new_link;	635	tail = new_link;
682	}	636	}
683	}	637	}
684	}	638	}
685		639
686	update_ob_speed (op);	640	if (speed < 0)
		641	dst->speed_left -= rndm ();
		642
		643	dst->set_speed (dst->speed);
		644	}
		645
		646	void
		647	object::instantiate ()
		648	{
		649	if (!uuid.seq) // HACK
		650	uuid = UUID::gen ();
		651
		652	speed_left = -0.1f;
		653	/* copy the body_info to the body_used - this is only really
		654	* need for monsters, but doesn't hurt to do it for everything.
		655	* by doing so, when a monster is created, it has good starting
		656	* values for the body_used info, so when items are created
		657	* for it, they can be properly equipped.
		658	*/
		659	for (int i = NUM_BODY_LOCATIONS; i--; )
		660	slot[i].used = slot[i].info;
		661
		662	attachable::instantiate ();
		663	}
		664
		665	object *
		666	object::clone ()
		667	{
		668	object *neu = create ();
		669	copy_to (neu);
		670	neu->map = map; // not copied by copy_to
		671	return neu;
687	}	672	}
688		673
689	/*	674	/*
690	* If an object with the IS_TURNABLE() flag needs to be turned due	675	* If an object with the IS_TURNABLE() flag needs to be turned due
691	* to the closest player being on the other side, this function can	676	* to the closest player being on the other side, this function can
692	* be called to update the face variable, _and_ how it looks on the map.	677	* be called to update the face variable, _and_ how it looks on the map.
693	*/	678	*/
694
695	void	679	void
696	update_turn_face (object *op)	680	update_turn_face (object *op)
697	{	681	{
698	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || op->arch == NULL)	682	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || !op->arch)
699	return;	683	return;
		684
700	SET_ANIMATION (op, op->direction);	685	SET_ANIMATION (op, op->direction);
701	update_object (op, UP_OBJ_FACE);	686	update_object (op, UP_OBJ_FACE);
702	}	687	}
703		688
704	/*	689	/*
705	* Updates the speed of an object. If the speed changes from 0 to another	690	* Updates the speed of an object. If the speed changes from 0 to another
706	* value, or vice versa, then add/remove the object from the active list.	691	* value, or vice versa, then add/remove the object from the active list.
707	* This function needs to be called whenever the speed of an object changes.	692	* This function needs to be called whenever the speed of an object changes.
708	*/	693	*/
709	void	694	void
710	update_ob_speed (object *op)	695	object::set_speed (float speed)
711	{	696	{
712	extern int arch_init;	697	if (flag [FLAG_FREED] && speed)
713
714	/* No reason putting the archetypes objects on the speed list,
715	* since they never really need to be updated.
716	*/
717
718	if (QUERY_FLAG (op, FLAG_FREED) && op->speed)
719	{	698	{
720	LOG (llevError, "Object %s is freed but has speed.\n", &op->name);	699	LOG (llevError, "Object %s is freed but has speed.\n", &name);
721	#ifdef MANY_CORES
722	abort ();
723	#else
724	op->speed = 0;	700	speed = 0;
725	#endif
726	}
727
728	if (arch_init)
729	return;
730
731	if (FABS (op->speed) > MIN_ACTIVE_SPEED)
732	{	701	}
733	/* If already on active list, don't do anything */
734	if (op->active_next || op->active_prev || op == active_objects)
735	return;
736		702
737	/* process_events() expects us to insert the object at the beginning	703	this->speed = speed;
738	* of the list. */
739	op->active_next = active_objects;
740		704
741	if (op->active_next != NULL)	705	if (has_active_speed ())
742	op->active_next->active_prev = op;	706	activate ();
743
744	active_objects = op;
745	}
746	else	707	else
747	{	708	deactivate ();
748	/* If not on the active list, nothing needs to be done */
749	if (!op->active_next && !op->active_prev && op != active_objects)
750	return;
751
752	if (op->active_prev == NULL)
753	{
754	active_objects = op->active_next;
755
756	if (op->active_next != NULL)
757	op->active_next->active_prev = NULL;
758	}
759	else
760	{
761	op->active_prev->active_next = op->active_next;
762
763	if (op->active_next)
764	op->active_next->active_prev = op->active_prev;
765	}
766
767	op->active_next = NULL;
768	op->active_prev = NULL;
769	}
770	}	709	}
771		710
772	/* This function removes object 'op' from the list of active
773	* objects.
774	* This should only be used for style maps or other such
775	* reference maps where you don't want an object that isn't
776	* in play chewing up cpu time getting processed.
777	* The reverse of this is to call update_ob_speed, which
778	* will do the right thing based on the speed of the object.
779	*/
780	void
781	remove_from_active_list (object *op)
782	{
783	/* If not on the active list, nothing needs to be done */
784	if (!op->active_next && !op->active_prev && op != active_objects)
785	return;
786
787	if (op->active_prev == NULL)
788	{
789	active_objects = op->active_next;
790	if (op->active_next != NULL)
791	op->active_next->active_prev = NULL;
792	}
793	else
794	{
795	op->active_prev->active_next = op->active_next;
796	if (op->active_next)
797	op->active_next->active_prev = op->active_prev;
798	}
799	op->active_next = NULL;
800	op->active_prev = NULL;
801	}
802
803	/*	711	/*
804	* update_object() updates the array which represents the map.	712	* update_object() updates the the map.
805	* It takes into account invisible objects (and represent squares covered	713	* It takes into account invisible objects (and represent squares covered
806	* by invisible objects by whatever is below them (unless it's another	714	* by invisible objects by whatever is below them (unless it's another
807	* invisible object, etc...)	715	* invisible object, etc...)
808	* If the object being updated is beneath a player, the look-window	716	* If the object being updated is beneath a player, the look-window
809	* of that player is updated (this might be a suboptimal way of	717	* of that player is updated (this might be a suboptimal way of
810	* updating that window, though, since update_object() is called _often_)	718	* updating that window, though, since update_object() is called _often_)
811	*	719	*
812	* action is a hint of what the caller believes need to be done.	720	* action is a hint of what the caller believes need to be done.
813	* For example, if the only thing that has changed is the face (due to
814	* an animation), we don't need to call update_position until that actually
815	* comes into view of a player. OTOH, many other things, like addition/removal
816	* of walls or living creatures may need us to update the flags now.
817	* current action are:	721	* current action are:
818	* UP_OBJ_INSERT: op was inserted	722	* UP_OBJ_INSERT: op was inserted
819	* UP_OBJ_REMOVE: op was removed	723	* UP_OBJ_REMOVE: op was removed
820	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update	724	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update
821	* as that is easier than trying to look at what may have changed.	725	* as that is easier than trying to look at what may have changed.
822	* UP_OBJ_FACE: only the objects face has changed.	726	* UP_OBJ_FACE: only the objects face has changed.
823	*/	727	*/
824
825	void	728	void
826	update_object (object *op, int action)	729	update_object (object *op, int action)
827	{	730	{
828	int update_now = 0, flags;	731	if (!op)
829	MoveType move_on, move_off, move_block, move_slow;
830
831	if (op == NULL)
832	{	732	{
833	/* this should never happen */	733	/* this should never happen */
834	LOG (llevDebug, "update_object() called for NULL object.\n");	734	LOG (llevError | logBacktrace, "update_object() called for NULL object.\n");
835	return;	735	return;
836	}	736	}
837		737
838	if (op->env != NULL)	738	if (!op->is_on_map ())
839	{	739	{
840	/* Animation is currently handled by client, so nothing	740	/* Animation is currently handled by client, so nothing
841	* to do in this case.	741	* to do in this case.
842	*/	742	*/
843	return;	743	return;
844	}	744	}
845		745
846	/* If the map is saving, don't do anything as everything is
847	* going to get freed anyways.
848	*/
849	if (!op->map || op->map->in_memory == MAP_SAVING)
850	return;
851
852	/* make sure the object is within map boundaries */	746	/* make sure the object is within map boundaries */
853	if (op->x < 0 || op->x >= MAP_WIDTH (op->map) || op->y < 0 || op->y >= MAP_HEIGHT (op->map))	747	if (op->x < 0 || op->x >= op->map->width || op->y < 0 || op->y >= op->map->height)
854	{	748	{
855	LOG (llevError, "update_object() called for object out of map!\n");	749	LOG (llevError, "update_object() called for object out of map!\n");
856	#ifdef MANY_CORES	750	#ifdef MANY_CORES
857	abort ();	751	abort ();
858	#endif	752	#endif
859	return;	753	return;
860	}	754	}
861		755
862	flags = GET_MAP_FLAGS (op->map, op->x, op->y);	756	mapspace &m = op->ms ();
863	SET_MAP_FLAGS (op->map, op->x, op->y, flags | P_NEED_UPDATE);
864	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);
865	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);
866	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);
867	move_off = GET_MAP_MOVE_OFF (op->map, op->x, op->y);
868		757
		758	if (!(m.flags_ & P_UPTODATE))
		759	/* nop */;
869	if (action == UP_OBJ_INSERT)	760	else if (action == UP_OBJ_INSERT)
870	{	761	{
		762	// this is likely overkill, TODO: revisit (schmorp)
871	if (QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(flags & P_BLOCKSVIEW))	763	if ((QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(m.flags_ & P_BLOCKSVIEW))
872	update_now = 1;
873
874	if (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(flags & P_NO_MAGIC))	764	|| (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(m.flags_ & P_NO_MAGIC))
875	update_now = 1;	765	|| (op->type == PLAYER && !(m.flags_ & P_PLAYER))
876		766	|| (op->type == SAFE_GROUND && !(m.flags_ & P_SAFE))
		767	|| (QUERY_FLAG (op, FLAG_ALIVE) && !(m.flags_ & P_IS_ALIVE))
877	if (QUERY_FLAG (op, FLAG_DAMNED) && !(flags & P_NO_CLERIC))	768	|| (QUERY_FLAG (op, FLAG_DAMNED) && !(m.flags_ & P_NO_CLERIC))
878	update_now = 1;
879
880	if (QUERY_FLAG (op, FLAG_ALIVE) && !(flags & P_IS_ALIVE))
881	update_now = 1;
882
883	if (op->type == SAFE_GROUND && !(flags & P_SAFE))
884	update_now = 1;
885
886	if ((move_on | op->move_on) != move_on)	769	|| (m.move_on | op->move_on ) != m.move_on
887	update_now = 1;
888
889	if ((move_off | op->move_off) != move_off)	770	|| (m.move_off | op->move_off ) != m.move_off
890	update_now = 1;	771	|| (m.move_slow | op->move_slow) != m.move_slow
891
892	/* This isn't perfect, but I don't expect a lot of objects to	772	/* This isn't perfect, but I don't expect a lot of objects to
893	* to have move_allow right now.	773	* to have move_allow right now.
894	*/	774	*/
895	if (((move_block | op->move_block) & ~op->move_allow) != move_block)	775	|| ((m.move_block | op->move_block) & ~op->move_allow) != m.move_block
896	update_now = 1;	776	|| 1) // the above is not strong enough a test to skip updating. los maybe? TODO (Schmorp)
897		777	m.flags_ = 0;
898	if ((move_slow | op->move_slow) != move_slow)
899	update_now = 1;
900	}	778	}
901	/* if the object is being removed, we can't make intelligent	779	/* if the object is being removed, we can't make intelligent
902	* decisions, because remove_ob can't really pass the object	780	* decisions, because remove_ob can't really pass the object
903	* that is being removed.	781	* that is being removed.
904	*/	782	*/
905	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)	783	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)
906	update_now = 1;	784	m.flags_ = 0;
907	else if (action == UP_OBJ_FACE)	785	else if (action == UP_OBJ_FACE)
908	/* Nothing to do for that case */ ;	786	/* Nothing to do for that case */ ;
909	else	787	else
910	LOG (llevError, "update_object called with invalid action: %d\n", action);	788	LOG (llevError, "update_object called with invalid action: %d\n", action);
911		789
912	if (update_now)
913	{
914	SET_MAP_FLAGS (op->map, op->x, op->y, flags | P_NO_ERROR | P_NEED_UPDATE);
915	update_position (op->map, op->x, op->y);
916	}
917
918	if (op->more != NULL)	790	if (op->more)
919	update_object (op->more, action);	791	update_object (op->more, action);
920	}
921
922	static unordered_vector<object *> mortals;
923
924	void object::free_mortals ()
925	{
926	for (unordered_vector<object *>::iterator i = mortals.begin (); i != mortals.end ();)
927	if ((*i)->refcnt)
928	++i; // further delay freeing
929	else
930	{
931	delete *i;
932	mortals.erase (i);
933	}
934
935	static int lastmortals = 0;//D
936
937	if (mortals.size() != lastmortals)//D
938	{
939	lastmortals = mortals.size ();//D
940	LOG (llevDebug, "%d objects in mortal queue\n", lastmortals);//D
941	}
942	}	792	}
943		793
944	object::object ()	794	object::object ()
945	{	795	{
946	SET_FLAG (this, FLAG_REMOVED);	796	SET_FLAG (this, FLAG_REMOVED);
947		797
948	expmul = 1.0;	798	expmul = 1.0;
949	face = blank_face;	799	face = blank_face;
950	attacked_by_count = -1;
951	}	800	}
952		801
953	object::~object ()	802	object::~object ()
954	{	803	{
		804	unlink ();
		805
955	free_key_values (this);	806	free_key_values (this);
956	}	807	}
957		808
		809	static int object_count;
		810
958	void object::link ()	811	void object::link ()
959	{	812	{
		813	assert (!index);//D
		814	uuid = UUID::gen ();
960	count = ++ob_count;	815	count = ++object_count;
961	uuid = gen_uuid ();
962		816
963	prev = 0;	817	refcnt_inc ();
964	next = objects;	818	objects.insert (this);
965
966	if (objects)
967	objects->prev = this;
968
969	objects = this;
970	}	819	}
971		820
972	void object::unlink ()	821	void object::unlink ()
973	{	822	{
974	//count = 0;//D	823	if (!index)
975	if (!prev && !next) return;//D	824	return;
976		825
977	if (this == objects)	826	objects.erase (this);
978	objects = next;	827	refcnt_dec ();
		828	}
979		829
980	/* Remove this object from the list of used objects */	830	void
981	if (prev) prev->next = next;	831	object::activate ()
982	if (next) next->prev = prev;	832	{
		833	/* If already on active list, don't do anything */
		834	if (active)
		835	return;
983		836
984	prev = 0;	837	if (has_active_speed ())
985	next = 0;	838	actives.insert (this);
		839	}
		840
		841	void
		842	object::activate_recursive ()
		843	{
		844	activate ();
		845
		846	for (object *op = inv; op; op = op->below)
		847	op->activate_recursive ();
		848	}
		849
		850	/* This function removes object 'op' from the list of active
		851	* objects.
		852	* This should only be used for style maps or other such
		853	* reference maps where you don't want an object that isn't
		854	* in play chewing up cpu time getting processed.
		855	* The reverse of this is to call update_ob_speed, which
		856	* will do the right thing based on the speed of the object.
		857	*/
		858	void
		859	object::deactivate ()
		860	{
		861	/* If not on the active list, nothing needs to be done */
		862	if (!active)
		863	return;
		864
		865	actives.erase (this);
		866	}
		867
		868	void
		869	object::deactivate_recursive ()
		870	{
		871	for (object *op = inv; op; op = op->below)
		872	op->deactivate_recursive ();
		873
		874	deactivate ();
		875	}
		876
		877	void
		878	object::set_flag_inv (int flag, int value)
		879	{
		880	for (object *op = inv; op; op = op->below)
		881	{
		882	op->flag [flag] = value;
		883	op->set_flag_inv (flag, value);
		884	}
		885	}
		886
		887	/*
		888	* Remove and free all objects in the inventory of the given object.
		889	* object.c ?
		890	*/
		891	void
		892	object::destroy_inv (bool drop_to_ground)
		893	{
		894	// need to check first, because the checks below might segfault
		895	// as we might be on an invalid mapspace and crossfire code
		896	// is too buggy to ensure that the inventory is empty.
		897	// corollary: if you create arrows etc. with stuff in its inventory,
		898	// cf will crash below with off-map x and y
		899	if (!inv)
		900	return;
		901
		902	/* Only if the space blocks everything do we not process -
		903	* if some form of movement is allowed, let objects
		904	* drop on that space.
		905	*/
		906	if (!drop_to_ground
		907	|| !map
		908	|| map->in_memory != MAP_ACTIVE
		909	|| map->no_drop
		910	|| ms ().move_block == MOVE_ALL)
		911	{
		912	while (inv)
		913	{
		914	inv->destroy_inv (false);
		915	inv->destroy ();
		916	}
		917	}
		918	else
		919	{ /* Put objects in inventory onto this space */
		920	while (inv)
		921	{
		922	object *op = inv;
		923
		924	if (op->flag [FLAG_STARTEQUIP]
		925	|| op->flag [FLAG_NO_DROP]
		926	|| op->type == RUNE
		927	|| op->type == TRAP
		928	|| op->flag [FLAG_IS_A_TEMPLATE]
		929	|| op->flag [FLAG_DESTROY_ON_DEATH])
		930	op->destroy (true);
		931	else
		932	map->insert (op, x, y);
		933	}
		934	}
986	}	935	}
987		936
988	object *object::create ()	937	object *object::create ()
989	{	938	{
990	object *op = new object;	939	object *op = new object;
991	op->link ();	940	op->link ();
992	return op;	941	return op;
993	}	942	}
994		943
995	/*	944	static struct freed_map : maptile
996	* free_object() frees everything allocated by an object, removes
997	* it from the list of used objects, and puts it on the list of
998	* free objects. The IS_FREED() flag is set in the object.
999	* The object must have been removed by remove_ob() first for
1000	* this function to succeed.
1001	*
1002	* If free_inventory is set, free inventory as well. Else drop items in
1003	* inventory to the ground.
1004	*/
1005	void object::free (bool free_inventory)
1006	{	945	{
1007	if (QUERY_FLAG (this, FLAG_FREED))	946	freed_map ()
		947	{
		948	path = "<freed objects map>";
		949	name = "/internal/freed_objects_map";
		950	width = 3;
		951	height = 3;
		952	no_drop = 1;
		953	no_reset = 1;
		954
		955	alloc ();
		956	in_memory = MAP_ACTIVE;
		957	}
		958
		959	~freed_map ()
		960	{
		961	destroy ();
		962	}
		963	} freed_map; // freed objects are moved here to avoid crashes
		964
		965	void
		966	object::do_destroy ()
		967	{
		968	if (flag [FLAG_IS_LINKED])
		969	remove_button_link (this);
		970
		971	if (flag [FLAG_FRIENDLY])
		972	remove_friendly_object (this);
		973
		974	remove ();
		975
		976	attachable::do_destroy ();
		977
		978	deactivate ();
		979	unlink ();
		980
		981	flag [FLAG_FREED] = 1;
		982
		983	// hack to ensure that freed objects still have a valid map
		984	map = &freed_map;
		985	x = 1;
		986	y = 1;
		987
		988	if (more)
		989	{
		990	more->destroy ();
		991	more = 0;
		992	}
		993
		994	head = 0;
		995
		996	// clear those pointers that likely might cause circular references
		997	owner = 0;
		998	enemy = 0;
		999	attacked_by = 0;
		1000	current_weapon = 0;
		1001	}
		1002
		1003	void
		1004	object::destroy (bool destroy_inventory)
		1005	{
		1006	if (destroyed ())
1008	return;	1007	return;
1009		1008
1010	if (QUERY_FLAG (this, FLAG_FRIENDLY))	1009	if (!is_head () && !head->destroyed ())
1011	remove_friendly_object (this);
1012
1013	if (!QUERY_FLAG (this, FLAG_REMOVED))
1014	remove_ob (this);
1015
1016	SET_FLAG (this, FLAG_FREED);
1017
1018	if (more)
1019	{
1020	more->free (free_inventory);
1021	more = 0;
1022	}	1010	{
1023		1011	LOG (llevError | logBacktrace, "tried to destroy the tail of an object");
1024	if (inv)	1012	head->destroy (destroy_inventory);
		1013	return;
1025	{	1014	}
1026	/* Only if the space blocks everything do we not process -
1027	* if some form of movement is allowed, let objects
1028	* drop on that space.
1029	*/
1030	if (free_inventory || !map || map->in_memory != MAP_IN_MEMORY || GET_MAP_MOVE_BLOCK (map, x, y) == MOVE_ALL)
1031	{
1032	object *op = inv;
1033		1015
1034	while (op)	1016	destroy_inv (!destroy_inventory);
1035	{
1036	object *tmp = op->below;
1037	op->free (free_inventory);
1038	op = tmp;
1039	}
1040	}
1041	else
1042	{ /* Put objects in inventory onto this space */
1043	object *op = inv;
1044		1017
1045	while (op)	1018	if (is_head ())
1046	{	1019	if (sound_destroy)
1047	object *tmp = op->below;	1020	play_sound (sound_destroy);
		1021	else if (flag [FLAG_MONSTER])
		1022	play_sound (sound_find ("monster_destroy")); // quick hack, too lazy to create a generic mechanism
1048		1023
1049	remove_ob (op);	1024	attachable::destroy ();
1050
1051	if (QUERY_FLAG (op, FLAG_STARTEQUIP)
1052	|| QUERY_FLAG (op, FLAG_NO_DROP) || op->type == RUNE || op->type == TRAP || QUERY_FLAG (op, FLAG_IS_A_TEMPLATE))
1053	free_object (op);
1054	else
1055	{
1056	op->x = x;
1057	op->y = y;
1058	insert_ob_in_map (op, map, 0, 0); /* Insert in same map as the envir */
1059	}
1060
1061	op = tmp;
1062	}
1063	}
1064	}
1065
1066	owner = 0;
1067
1068	/* Remove object from the active list */
1069	speed = 0;
1070	update_ob_speed (this);
1071
1072	unlink ();
1073
1074	mortals.push_back (this);
1075	}	1025	}
1076		1026
1077	/*	1027	/* op->remove ():
1078	* sub_weight() recursively (outwards) subtracts a number from the
1079	* weight of an object (and what is carried by it's environment(s)).
1080	*/
1081
1082	void
1083	sub_weight (object *op, signed long weight)
1084	{
1085	while (op != NULL)
1086	{
1087	if (op->type == CONTAINER)
1088	{
1089	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1090	}
1091	op->carrying -= weight;
1092	op = op->env;
1093	}
1094	}
1095
1096	/* remove_ob(op):
1097	* This function removes the object op from the linked list of objects	1028	* This function removes the object op from the linked list of objects
1098	* which it is currently tied to. When this function is done, the	1029	* which it is currently tied to. When this function is done, the
1099	* object will have no environment. If the object previously had an	1030	* object will have no environment. If the object previously had an
1100	* environment, the x and y coordinates will be updated to	1031	* environment, the x and y coordinates will be updated to
1101	* the previous environment.	1032	* the previous environment.
1102	* Beware: This function is called from the editor as well!
1103	*/	1033	*/
1104
1105	void	1034	void
1106	remove_ob (object *op)	1035	object::do_remove ()
1107	{	1036	{
		1037	object *tmp, *last = 0;
1108	object *	1038	object *otmp;
1109	tmp, *
1110	last = NULL;
1111	object *
1112	otmp;
1113		1039
1114	tag_t	1040	if (flag [FLAG_REMOVED])
1115	tag;
1116	int
1117	check_walk_off;
1118	mapstruct *
1119	m;
1120
1121	sint16
1122	x,
1123	y;
1124
1125	if (QUERY_FLAG (op, FLAG_REMOVED))
1126	return;	1041	return;
1127		1042
1128	SET_FLAG (op, FLAG_REMOVED);	1043	INVOKE_OBJECT (REMOVE, this);
1129		1044
1130	if (op->more != NULL)	1045	flag [FLAG_REMOVED] = true;
1131	remove_ob (op->more);	1046
		1047	if (more)
		1048	more->remove ();
1132		1049
1133	/*	1050	/*
1134	* In this case, the object to be removed is in someones	1051	* In this case, the object to be removed is in someones
1135	* inventory.	1052	* inventory.
1136	*/	1053	*/
1137	if (op->env != NULL)	1054	if (env)
1138	{	1055	{
1139	if (op->nrof)	1056	flag [FLAG_REMOVED] = false; // hack around the issue of visible_to checking flag_removed
1140	sub_weight (op->env, op->weight * op->nrof);	1057	if (object *pl = visible_to ())
1141	else	1058	esrv_del_item (pl->contr, count);
1142	sub_weight (op->env, op->weight + op->carrying);	1059	flag [FLAG_REMOVED] = true; // hack around the issue of visible_to checking flag_removed
		1060
		1061	adjust_weight (env, -total_weight ());
		1062
		1063	/* we set up values so that it could be inserted into
		1064	* the map, but we don't actually do that - it is up
		1065	* to the caller to decide what we want to do.
		1066	*/
		1067	map = env->map;
		1068	x = env->x;
		1069	y = env->y;
		1070
		1071	// make sure cmov optimisation is applicable
		1072	*(above ? &above->below : &env->inv) = below;
		1073	*(below ? &below->above : &above ) = above; // &above is just a dummy
		1074
		1075	above = 0;
		1076	below = 0;
		1077	env = 0;
1143		1078
1144	/* NO_FIX_PLAYER is set when a great many changes are being	1079	/* NO_FIX_PLAYER is set when a great many changes are being
1145	* made to players inventory. If set, avoiding the call	1080	* made to players inventory. If set, avoiding the call
1146	* to save cpu time.	1081	* to save cpu time.
1147	*/	1082	*/
1148	if ((otmp = is_player_inv (op->env)) != NULL && otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))	1083	if ((otmp = in_player ()) && otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1149	fix_player (otmp);	1084	otmp->update_stats ();
1150
1151	if (op->above != NULL)
1152	op->above->below = op->below;
1153	else
1154	op->env->inv = op->below;
1155
1156	if (op->below != NULL)
1157	op->below->above = op->above;
1158
1159	/* we set up values so that it could be inserted into
1160	* the map, but we don't actually do that - it is up
1161	* to the caller to decide what we want to do.
1162	*/
1163	op->x = op->env->x, op->y = op->env->y;
1164	op->map = op->env->map;
1165	op->above = NULL, op->below = NULL;
1166	op->env = NULL;
1167	}	1085	}
1168	else if (op->map)	1086	else if (map)
1169	{	1087	{
1170	x = op->x;	1088	map->dirty = true;
1171	y = op->y;	1089	mapspace &ms = this->ms ();
1172	m = get_map_from_coord (op->map, &x, &y);
1173		1090
1174	if (!m)	1091	if (object *pl = ms.player ())
1175	{	1092	{
1176	LOG (llevError, "remove_ob called when object was on map but appears to not be within valid coordinates? %s (%d,%d)\n",	1093	if (type == PLAYER) // this == pl(!)
1177	op->map->path, op->x, op->y);
1178	/* in old days, we used to set x and y to 0 and continue.
1179	* it seems if we get into this case, something is probablye
1180	* screwed up and should be fixed.
1181	*/	1094	{
1182	abort ();	1095	// leaving a spot always closes any open container on the ground
		1096	if (container && !container->env)
		1097	// this causes spurious floorbox updates, but it ensures
		1098	// that the CLOSE event is being sent.
		1099	close_container ();
		1100
		1101	--map->players;
		1102	map->touch ();
		1103	}
		1104	else if (pl->container == this)
		1105	{
		1106	// removing a container should close it
		1107	close_container ();
		1108	}
		1109
		1110	esrv_del_item (pl->contr, count);
1183	}	1111	}
1184		1112
1185	if (op->map != m)
1186	LOG (llevDebug, "remove_ob: Object not really on map it claimed to be on? %s != %s, %d,%d != %d,%d\n",
1187	op->map->path, m->path, op->x, op->y, x, y);
1188
1189	/* Re did the following section of code - it looks like it had
1190	* lots of logic for things we no longer care about
1191	*/
1192
1193	/* link the object above us */	1113	/* link the object above us */
1194	if (op->above)	1114	// re-link, make sure compiler can easily use cmove
1195	op->above->below = op->below;	1115	*(above ? &above->below : &ms.top) = below;
1196	else	1116	*(below ? &below->above : &ms.bot) = above;
1197	SET_MAP_TOP (m, x, y, op->below); /* we were top, set new top */
1198		1117
1199	/* Relink the object below us, if there is one */	1118	above = 0;
1200	if (op->below)	1119	below = 0;
1201	op->below->above = op->above;	1120
1202	else	1121	if (map->in_memory == MAP_SAVING)
		1122	return;
		1123
		1124	int check_walk_off = !flag [FLAG_NO_APPLY];
		1125
		1126	if (object *pl = ms.player ())
1203	{	1127	{
1204	/* Nothing below, which means we need to relink map object for this space	1128	if (pl->container == this)
1205	* use translated coordinates in case some oddness with map tiling is	1129	/* If a container that the player is currently using somehow gets
1206	* evident	1130	* removed (most likely destroyed), update the player view
		1131	* appropriately.
1207	*/	1132	*/
1208	if (GET_MAP_OB (m, x, y) != op)	1133	pl->close_container ();
1209	{
1210	dump_object (op);
1211	LOG (llevError,
1212	"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);
1213	dump_object (GET_MAP_OB (m, x, y));
1214	LOG (llevError, "%s\n", errmsg);
1215	}
1216		1134
1217	SET_MAP_OB (m, x, y, op->above); /* goes on above it. */	1135	//TODO: the floorbox prev/next might need updating
		1136	//esrv_del_item (pl->contr, count);
		1137	//TODO: update floorbox to preserve ordering
		1138	if (pl->contr->ns)
		1139	pl->contr->ns->floorbox_update ();
1218	}	1140	}
1219		1141
1220	op->above = 0;	1142	for (tmp = ms.bot; tmp; tmp = tmp->above)
1221	op->below = 0;
1222
1223	if (op->map->in_memory == MAP_SAVING)
1224	return;
1225
1226	tag = op->count;
1227	check_walk_off = !QUERY_FLAG (op, FLAG_NO_APPLY);
1228
1229	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)
1230	{	1143	{
1231	/* No point updating the players look faces if he is the object	1144	/* No point updating the players look faces if he is the object
1232	* being removed.	1145	* being removed.
1233	*/	1146	*/
1234		1147
1235	if (tmp->type == PLAYER && tmp != op)	1148	/* See if object moving off should effect something */
		1149	if (check_walk_off
		1150	&& ((move_type & tmp->move_off)
		1151	&& (move_type & ~tmp->move_off & ~tmp->move_block) == 0))
1236	{	1152	{
1237	/* If a container that the player is currently using somehow gets	1153	move_apply (tmp, this, 0);
1238	* removed (most likely destroyed), update the player view
1239	* appropriately.
1240	*/
1241	if (tmp->container == op)
1242	{
1243	CLEAR_FLAG (op, FLAG_APPLIED);
1244	tmp->container = NULL;
1245	}
1246		1154
1247	tmp->contr->socket.update_look = 1;	1155	if (destroyed ())
		1156	LOG (llevError, "BUG: remove_ob(): name %s, destroyed leaving object\n", tmp->debug_desc ());
1248	}	1157	}
1249
1250	/* See if player moving off should effect something */
1251	if (check_walk_off && ((op->move_type & tmp->move_off) && (op->move_type & ~tmp->move_off & ~tmp->move_block) == 0))
1252	{
1253	move_apply (tmp, op, NULL);
1254
1255	if (was_destroyed (op, tag))
1256	{
1257	LOG (llevError, "BUG: remove_ob(): name %s, archname %s destroyed " "leaving object\n", &tmp->name, &tmp->arch->name);
1258	}
1259	}
1260
1261	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */
1262
1263	if (tmp->above == tmp)
1264	tmp->above = NULL;
1265		1158
1266	last = tmp;	1159	last = tmp;
1267	}	1160	}
1268		1161
1269	/* last == NULL of there are no objects on this space */	1162	/* last == NULL if there are no objects on this space */
		1163	//TODO: this makes little sense, why only update the topmost object?
1270	if (last == NULL)	1164	if (!last)
1271	{	1165	map->at (x, y).flags_ = 0;
1272	/* set P_NEED_UPDATE, otherwise update_position will complain. In theory,
1273	* we could preserve the flags (GET_MAP_FLAGS), but update_position figures
1274	* those out anyways, and if there are any flags set right now, they won't
1275	* be correct anyways.
1276	*/
1277	SET_MAP_FLAGS (op->map, op->x, op->y, P_NEED_UPDATE);
1278	update_position (op->map, op->x, op->y);
1279	}
1280	else	1166	else
1281	update_object (last, UP_OBJ_REMOVE);	1167	update_object (last, UP_OBJ_REMOVE);
1282		1168
1283	if (QUERY_FLAG (op, FLAG_BLOCKSVIEW) || (op->glow_radius != 0))	1169	if (flag [FLAG_BLOCKSVIEW] || glow_radius)
1284	update_all_los (op->map, op->x, op->y);	1170	update_all_los (map, x, y);
1285	}	1171	}
1286	}	1172	}
1287		1173
1288	/*	1174	/*
1289	* merge_ob(op,top):	1175	* merge_ob(op,top):
…		…
1297	merge_ob (object *op, object *top)	1183	merge_ob (object *op, object *top)
1298	{	1184	{
1299	if (!op->nrof)	1185	if (!op->nrof)
1300	return 0;	1186	return 0;
1301		1187
1302	if (top == NULL)	1188	if (!top)
1303	for (top = op; top != NULL && top->above != NULL; top = top->above);	1189	for (top = op; top && top->above; top = top->above)
		1190	;
1304		1191
1305	for (; top != NULL; top = top->below)	1192	for (; top; top = top->below)
1306	{	1193	if (object::can_merge (op, top))
1307	if (top == op)
1308	continue;
1309	if (CAN_MERGE (op, top))
1310	{	1194	{
1311	top->nrof += op->nrof;	1195	top->nrof += op->nrof;
1312		1196
1313	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/	1197	if (object *pl = top->visible_to ())
1314	op->weight = 0; /* Don't want any adjustements now */	1198	esrv_update_item (UPD_NROF, pl, top);
1315	remove_ob (op);	1199
1316	free_object (op);	1200	op->weight = 0; // cancel the addition above
		1201	op->carrying = 0; // must be 0 already
		1202
		1203	op->destroy (1);
		1204
1317	return top;	1205	return top;
1318	}	1206	}
1319	}
1320		1207
1321	return NULL;	1208	return 0;
1322	}	1209	}
1323		1210
		1211	void
		1212	object::expand_tail ()
		1213	{
		1214	if (more)
		1215	return;
		1216
		1217	object *prev = this;
		1218
		1219	for (archetype *at = (archetype *)arch->more; at; at = (archetype *)at->more)
		1220	{
		1221	object *op = arch_to_object (at);
		1222
		1223	op->name = name;
		1224	op->name_pl = name_pl;
		1225	op->title = title;
		1226
		1227	op->head = this;
		1228	prev->more = op;
		1229
		1230	prev = op;
		1231	}
		1232	}
		1233
1324	/*	1234	/*
1325	* same as insert_ob_in_map except it handle separate coordinates and do a clean	1235	* same as insert_ob_in_map except it handles separate coordinates and does a clean
1326	* job preparing multi-part monsters	1236	* job preparing multi-part monsters.
1327	*/	1237	*/
1328	object *	1238	object *
1329	insert_ob_in_map_at (object *op, mapstruct *m, object *originator, int flag, int x, int y)	1239	insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)
1330	{	1240	{
1331	object *tmp;
1332
1333	if (op->head)
1334	op = op->head;
1335
1336	for (tmp = op; tmp; tmp = tmp->more)	1241	for (object *tmp = op->head_ (); tmp; tmp = tmp->more)
1337	{	1242	{
1338	tmp->x = x + tmp->arch->clone.x;	1243	tmp->x = x + tmp->arch->x;
1339	tmp->y = y + tmp->arch->clone.y;	1244	tmp->y = y + tmp->arch->y;
1340	}	1245	}
1341		1246
1342	return insert_ob_in_map (op, m, originator, flag);	1247	return insert_ob_in_map (op, m, originator, flag);
1343	}	1248	}
1344		1249
…		…
1360	* Return value:	1265	* Return value:
1361	* new object if 'op' was merged with other object	1266	* new object if 'op' was merged with other object
1362	* NULL if 'op' was destroyed	1267	* NULL if 'op' was destroyed
1363	* just 'op' otherwise	1268	* just 'op' otherwise
1364	*/	1269	*/
1365
1366	object *	1270	object *
1367	insert_ob_in_map (object *op, mapstruct *m, object *originator, int flag)	1271	insert_ob_in_map (object *op, maptile *m, object *originator, int flag)
1368	{	1272	{
1369	object *tmp, *top, *floor = NULL;	1273	op->remove ();
1370	sint16 x, y;
1371
1372	if (QUERY_FLAG (op, FLAG_FREED))
1373	{
1374	LOG (llevError, "Trying to insert freed object!\n");
1375	return NULL;
1376	}
1377
1378	if (m == NULL)
1379	{
1380	dump_object (op);
1381	LOG (llevError, "Trying to insert in null-map!\n%s\n", errmsg);
1382	return op;
1383	}
1384
1385	if (out_of_map (m, op->x, op->y))
1386	{
1387	dump_object (op);
1388	LOG (llevError, "Trying to insert object outside the map.\n%s\n", errmsg);
1389	#ifdef MANY_CORES
1390	/* Better to catch this here, as otherwise the next use of this object
1391	* is likely to cause a crash. Better to find out where it is getting
1392	* improperly inserted.
1393	*/
1394	abort ();
1395	#endif
1396	return op;
1397	}
1398
1399	if (!QUERY_FLAG (op, FLAG_REMOVED))
1400	{
1401	dump_object (op);
1402	LOG (llevError, "Trying to insert (map) inserted object.\n%s\n", errmsg);
1403	return op;
1404	}
1405
1406	if (op->more != NULL)
1407	{
1408	/* The part may be on a different map. */
1409
1410	object *more = op->more;
1411
1412	/* We really need the caller to normalize coordinates - if
1413	* we set the map, that doesn't work if the location is within
1414	* a map and this is straddling an edge. So only if coordinate
1415	* is clear wrong do we normalize it.
1416	*/
1417	if (OUT_OF_REAL_MAP (more->map, more->x, more->y))
1418	more->map = get_map_from_coord (m, &more->x, &more->y);
1419	else if (!more->map)
1420	{
1421	/* For backwards compatibility - when not dealing with tiled maps,
1422	* more->map should always point to the parent.
1423	*/
1424	more->map = m;
1425	}
1426
1427	if (insert_ob_in_map (more, more->map, originator, flag) == NULL)
1428	{
1429	if (!op->head)
1430	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");
1431
1432	return NULL;
1433	}
1434	}
1435
1436	CLEAR_FLAG (op, FLAG_REMOVED);
1437		1274
1438	/* Ideally, the caller figures this out. However, it complicates a lot	1275	/* Ideally, the caller figures this out. However, it complicates a lot
1439	* of areas of callers (eg, anything that uses find_free_spot would now	1276	* of areas of callers (eg, anything that uses find_free_spot would now
1440	* need extra work	1277	* need extra work
1441	*/	1278	*/
1442	op->map = get_map_from_coord (m, &op->x, &op->y);	1279	if (!xy_normalise (m, op->x, op->y))
1443	x = op->x;	1280	{
1444	y = op->y;	1281	op->head_ ()->destroy (1);// remove head_ once all tail object destroyers found
		1282	return 0;
		1283	}
		1284
		1285	if (object *more = op->more)
		1286	if (!insert_ob_in_map (more, m, originator, flag))
		1287	return 0;
		1288
		1289	CLEAR_FLAG (op, FLAG_REMOVED);
		1290
		1291	op->map = m;
		1292	mapspace &ms = op->ms ();
1445		1293
1446	/* this has to be done after we translate the coordinates.	1294	/* this has to be done after we translate the coordinates.
1447	*/	1295	*/
1448	if (op->nrof && !(flag & INS_NO_MERGE))	1296	if (op->nrof && !(flag & INS_NO_MERGE))
1449	for (tmp = GET_MAP_OB (op->map, x, y); tmp != NULL; tmp = tmp->above)	1297	for (object *tmp = ms.bot; tmp; tmp = tmp->above)
1450	if (CAN_MERGE (op, tmp))	1298	if (object::can_merge (op, tmp))
1451	{	1299	{
		1300	// TODO: we actually want to update tmp, not op,
		1301	// but some caller surely breaks when we return tmp
		1302	// from here :/
1452	op->nrof += tmp->nrof;	1303	op->nrof += tmp->nrof;
1453	remove_ob (tmp);	1304	tmp->destroy (1);
1454	free_object (tmp);
1455	}	1305	}
1456		1306
1457	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */	1307	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */
1458	CLEAR_FLAG (op, FLAG_INV_LOCKED);	1308	CLEAR_FLAG (op, FLAG_INV_LOCKED);
1459		1309
…		…
1466	{	1316	{
1467	LOG (llevError, "insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");	1317	LOG (llevError, "insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");
1468	abort ();	1318	abort ();
1469	}	1319	}
1470		1320
		1321	if (!originator->is_on_map ())
		1322	LOG (llevDebug | logBacktrace, "insert_ob_in_map(%s) called with INS_BELOW_ORIGINATOR when originator '%s' not on map",
		1323	op->debug_desc (), originator->debug_desc ());
		1324
1471	op->above = originator;	1325	op->above = originator;
1472	op->below = originator->below;	1326	op->below = originator->below;
1473
1474	if (op->below)
1475	op->below->above = op;
1476	else
1477	SET_MAP_OB (op->map, op->x, op->y, op);
1478
1479	/* since *below* originator, no need to update top */
1480	originator->below = op;	1327	originator->below = op;
		1328
		1329	*(op->below ? &op->below->above : &ms.bot) = op;
1481	}	1330	}
1482	else	1331	else
1483	{	1332	{
		1333	object *floor = 0;
		1334	object *top = ms.top;
		1335
1484	/* If there are other objects, then */	1336	/* If there are other objects, then */
1485	if ((!(flag & INS_MAP_LOAD)) && ((top = GET_MAP_OB (op->map, op->x, op->y)) != NULL))	1337	if (top)
1486	{	1338	{
1487	object *last = NULL;
1488
1489	/*	1339	/*
1490	* If there are multiple objects on this space, we do some trickier handling.	1340	* If there are multiple objects on this space, we do some trickier handling.
1491	* We've already dealt with merging if appropriate.	1341	* We've already dealt with merging if appropriate.
1492	* Generally, we want to put the new object on top. But if	1342	* Generally, we want to put the new object on top. But if
1493	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last	1343	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last
…		…
1496	* once we get to them. This reduces the need to traverse over all of	1346	* once we get to them. This reduces the need to traverse over all of
1497	* them when adding another one - this saves quite a bit of cpu time	1347	* them when adding another one - this saves quite a bit of cpu time
1498	* when lots of spells are cast in one area. Currently, it is presumed	1348	* when lots of spells are cast in one area. Currently, it is presumed
1499	* that flying non pickable objects are spell objects.	1349	* that flying non pickable objects are spell objects.
1500	*/	1350	*/
1501		1351	for (object *tmp = ms.bot; tmp; tmp = tmp->above)
1502	while (top != NULL)
1503	{	1352	{
1504	if (QUERY_FLAG (top, FLAG_IS_FLOOR) || QUERY_FLAG (top, FLAG_OVERLAY_FLOOR))	1353	if (QUERY_FLAG (tmp, FLAG_IS_FLOOR) || QUERY_FLAG (tmp, FLAG_OVERLAY_FLOOR))
1505	floor = top;	1354	floor = tmp;
1506		1355
1507	if (QUERY_FLAG (top, FLAG_NO_PICK) && (top->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (top, FLAG_IS_FLOOR))	1356	if (QUERY_FLAG (tmp, FLAG_NO_PICK) && (tmp->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (tmp, FLAG_IS_FLOOR))
1508	{	1357	{
1509	/* We insert above top, so we want this object below this */	1358	/* We insert above top, so we want this object below this */
1510	top = top->below;	1359	top = tmp->below;
1511	break;	1360	break;
1512	}	1361	}
1513		1362
1514	last = top;
1515	top = top->above;	1363	top = tmp;
1516	}	1364	}
1517
1518	/* Don't want top to be NULL, so set it to the last valid object */
1519	top = last;
1520		1365
1521	/* We let update_position deal with figuring out what the space	1366	/* We let update_position deal with figuring out what the space
1522	* looks like instead of lots of conditions here.	1367	* looks like instead of lots of conditions here.
1523	* makes things faster, and effectively the same result.	1368	* makes things faster, and effectively the same result.
1524	*/	1369	*/
1525		1370
1526	/* Have object 'fall below' other objects that block view.	1371	/* Have object 'fall below' other objects that block view.
1527	* Unless those objects are exits, type 66	1372	* Unless those objects are exits.
1528	* If INS_ON_TOP is used, don't do this processing	1373	* If INS_ON_TOP is used, don't do this processing
1529	* Need to find the object that in fact blocks view, otherwise	1374	* Need to find the object that in fact blocks view, otherwise
1530	* stacking is a bit odd.	1375	* stacking is a bit odd.
1531	*/	1376	*/
1532	if (!(flag & INS_ON_TOP) &&	1377	if (!(flag & INS_ON_TOP)
1533	(get_map_flags (op->map, NULL, op->x, op->y, NULL, NULL) & P_BLOCKSVIEW) && (op->face && !op->face->visibility))	1378	&& ms.flags () & P_BLOCKSVIEW
		1379	&& (op->face && !faces [op->face].visibility))
1534	{	1380	{
		1381	object *last;
		1382
1535	for (last = top; last != floor; last = last->below)	1383	for (last = top; last != floor; last = last->below)
1536	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))	1384	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))
1537	break;	1385	break;
		1386
1538	/* Check to see if we found the object that blocks view,	1387	/* Check to see if we found the object that blocks view,
1539	* and make sure we have a below pointer for it so that	1388	* and make sure we have a below pointer for it so that
1540	* we can get inserted below this one, which requires we	1389	* we can get inserted below this one, which requires we
1541	* set top to the object below us.	1390	* set top to the object below us.
1542	*/	1391	*/
1543	if (last && last->below && last != floor)	1392	if (last && last->below && last != floor)
1544	top = last->below;	1393	top = last->below;
1545	}	1394	}
1546	} /* If objects on this space */	1395	} /* If objects on this space */
1547		1396
1548	if (flag & INS_MAP_LOAD)
1549	top = GET_MAP_TOP (op->map, op->x, op->y);
1550
1551	if (flag & INS_ABOVE_FLOOR_ONLY)	1397	if (flag & INS_ABOVE_FLOOR_ONLY)
1552	top = floor;	1398	top = floor;
1553		1399
1554	/* Top is the object that our object (op) is going to get inserted above.	1400	// insert object above top, or bottom-most if top = 0
1555	*/
1556
1557	/* First object on this space */
1558	if (!top)	1401	if (!top)
1559	{	1402	{
1560	op->above = GET_MAP_OB (op->map, op->x, op->y);
1561
1562	if (op->above)
1563	op->above->below = op;
1564
1565	op->below = NULL;	1403	op->below = 0;
1566	SET_MAP_OB (op->map, op->x, op->y, op);	1404	op->above = ms.bot;
		1405	ms.bot = op;
		1406
		1407	*(op->above ? &op->above->below : &ms.top) = op;
1567	}	1408	}
1568	else	1409	else
1569	{ /* get inserted into the stack above top */	1410	{
1570	op->above = top->above;	1411	op->above = top->above;
1571
1572	if (op->above)
1573	op->above->below = op;	1412	top->above = op;
1574		1413
1575	op->below = top;	1414	op->below = top;
1576	top->above = op;	1415	*(op->above ? &op->above->below : &ms.top) = op;
1577	}	1416	}
1578		1417	}
1579	if (op->above == NULL)
1580	SET_MAP_TOP (op->map, op->x, op->y, op);
1581	} /* else not INS_BELOW_ORIGINATOR */
1582		1418
1583	if (op->type == PLAYER)	1419	if (op->type == PLAYER)
		1420	{
1584	op->contr->do_los = 1;	1421	op->contr->do_los = 1;
		1422	++op->map->players;
		1423	op->map->touch ();
		1424	}
1585		1425
1586	/* If we have a floor, we know the player, if any, will be above	1426	op->map->dirty = true;
1587	* it, so save a few ticks and start from there.	1427
1588	*/	1428	if (object *pl = ms.player ())
1589	if (!(flag & INS_MAP_LOAD))	1429	//TODO: the floorbox prev/next might need updating
1590	for (tmp = floor ? floor : GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)	1430	//esrv_send_item (pl, op);
1591	if (tmp->type == PLAYER)	1431	//TODO: update floorbox to preserve ordering
1592	tmp->contr->socket.update_look = 1;	1432	if (pl->contr->ns)
		1433	pl->contr->ns->floorbox_update ();
1593		1434
1594	/* If this object glows, it may affect lighting conditions that are	1435	/* If this object glows, it may affect lighting conditions that are
1595	* visible to others on this map. But update_all_los is really	1436	* visible to others on this map. But update_all_los is really
1596	* an inefficient way to do this, as it means los for all players	1437	* an inefficient way to do this, as it means los for all players
1597	* on the map will get recalculated. The players could very well	1438	* on the map will get recalculated. The players could very well
1598	* be far away from this change and not affected in any way -	1439	* be far away from this change and not affected in any way -
1599	* this should get redone to only look for players within range,	1440	* this should get redone to only look for players within range,
1600	* or just updating the P_NEED_UPDATE for spaces within this area	1441	* or just updating the P_UPTODATE for spaces within this area
1601	* of effect may be sufficient.	1442	* of effect may be sufficient.
1602	*/	1443	*/
1603	if (MAP_DARKNESS (op->map) && (op->glow_radius != 0))	1444	if (op->map->darkness && (op->glow_radius != 0))
1604	update_all_los (op->map, op->x, op->y);	1445	update_all_los (op->map, op->x, op->y);
1605		1446
1606	/* updates flags (blocked, alive, no magic, etc) for this map space */	1447	/* updates flags (blocked, alive, no magic, etc) for this map space */
1607	update_object (op, UP_OBJ_INSERT);	1448	update_object (op, UP_OBJ_INSERT);
1608		1449
		1450	INVOKE_OBJECT (INSERT, op);
		1451
1609	/* Don't know if moving this to the end will break anything. However,	1452	/* Don't know if moving this to the end will break anything. However,
1610	* we want to have update_look set above before calling this.	1453	* we want to have floorbox_update called before calling this.
1611	*	1454	*
1612	* check_move_on() must be after this because code called from	1455	* check_move_on() must be after this because code called from
1613	* check_move_on() depends on correct map flags (so functions like	1456	* check_move_on() depends on correct map flags (so functions like
1614	* blocked() and wall() work properly), and these flags are updated by	1457	* blocked() and wall() work properly), and these flags are updated by
1615	* update_object().	1458	* update_object().
1616	*/	1459	*/
1617		1460
1618	/* if this is not the head or flag has been passed, don't check walk on status */	1461	/* if this is not the head or flag has been passed, don't check walk on status */
1619	if (!(flag & INS_NO_WALK_ON) && !op->head)	1462	if (!(flag & INS_NO_WALK_ON) && op->head_ () == op)
1620	{	1463	{
1621	if (check_move_on (op, originator))	1464	if (check_move_on (op, originator))
1622	return NULL;	1465	return 0;
1623		1466
1624	/* If we are a multi part object, lets work our way through the check	1467	/* If we are a multi part object, lets work our way through the check
1625	* walk on's.	1468	* walk on's.
1626	*/	1469	*/
1627	for (tmp = op->more; tmp != NULL; tmp = tmp->more)	1470	for (object *tmp = op->more; tmp; tmp = tmp->more)
1628	if (check_move_on (tmp, originator))	1471	if (check_move_on (tmp, originator))
1629	return NULL;	1472	return 0;
1630	}	1473	}
1631		1474
1632	return op;	1475	return op;
1633	}	1476	}
1634		1477
1635	/* this function inserts an object in the map, but if it	1478	/* this function inserts an object in the map, but if it
1636	* finds an object of its own type, it'll remove that one first.	1479	* finds an object of its own type, it'll remove that one first.
1637	* op is the object to insert it under: supplies x and the map.	1480	* op is the object to insert it under: supplies x and the map.
1638	*/	1481	*/
1639	void	1482	void
1640	replace_insert_ob_in_map (const char *arch_string, object *op)	1483	replace_insert_ob_in_map (const char *arch_string, object *op)
1641	{	1484	{
1642	object *
1643	tmp;
1644	object *
1645	tmp1;
1646
1647	/* first search for itself and remove any old instances */	1485	/* first search for itself and remove any old instances */
1648		1486
1649	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)	1487	for (object *tmp = op->ms ().bot; tmp; tmp = tmp->above)
1650	{
1651	if (!strcmp (tmp->arch->name, arch_string)) /* same archetype */	1488	if (!strcmp (tmp->arch->archname, arch_string)) /* same archetype */
1652	{	1489	tmp->destroy (1);
1653	remove_ob (tmp);
1654	free_object (tmp);
1655	}
1656	}
1657		1490
1658	tmp1 = arch_to_object (find_archetype (arch_string));	1491	object *tmp = arch_to_object (archetype::find (arch_string));
1659		1492
1660	tmp1->x = op->x;	1493	tmp->x = op->x;
1661	tmp1->y = op->y;	1494	tmp->y = op->y;
		1495
1662	insert_ob_in_map (tmp1, op->map, op, 0);	1496	insert_ob_in_map (tmp, op->map, op, 0);
1663	}	1497	}
1664
1665	/*
1666	* get_split_ob(ob,nr) splits up ob into two parts. The part which
1667	* is returned contains nr objects, and the remaining parts contains
1668	* the rest (or is removed and freed if that number is 0).
1669	* On failure, NULL is returned, and the reason put into the
1670	* global static errmsg array.
1671	*/
1672		1498
1673	object *	1499	object *
1674	get_split_ob (object *orig_ob, uint32 nr)	1500	object::insert_at (object *where, object *originator, int flags)
1675	{	1501	{
1676	object *	1502	if (where->env)
1677	newob;	1503	return where->env->insert (this);
1678	int	1504	else
1679	is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);	1505	return where->map->insert (this, where->x, where->y, originator, flags);
1680
1681	if (orig_ob->nrof < nr)
1682	{
1683	sprintf (errmsg, "There are only %d %ss.", orig_ob->nrof ? orig_ob->nrof : 1, &orig_ob->name);
1684	return NULL;
1685	}
1686
1687	newob = object_create_clone (orig_ob);
1688
1689	if ((orig_ob->nrof -= nr) < 1)
1690	{
1691	if (!is_removed)
1692	remove_ob (orig_ob);
1693	free_object2 (orig_ob, 1);
1694	}
1695	else if (!is_removed)
1696	{
1697	if (orig_ob->env != NULL)
1698	sub_weight (orig_ob->env, orig_ob->weight * nr);
1699	if (orig_ob->env == NULL && orig_ob->map->in_memory != MAP_IN_MEMORY)
1700	{
1701	strcpy (errmsg, "Tried to split object whose map is not in memory.");
1702	LOG (llevDebug, "Error, Tried to split object whose map is not in memory.\n");
1703	return NULL;
1704	}
1705	}
1706
1707	newob->nrof = nr;
1708
1709	return newob;
1710	}	1506	}
1711		1507
1712	/*	1508	/*
1713	* decrease_ob_nr(object, number) decreases a specified number from	1509	* decrease(object, number) decreases a specified number from
1714	* the amount of an object. If the amount reaches 0, the object	1510	* the amount of an object. If the amount reaches 0, the object
1715	* is subsequently removed and freed.	1511	* is subsequently removed and freed.
1716	*	1512	*
1717	* Return value: 'op' if something is left, NULL if the amount reached 0	1513	* Return value: 'op' if something is left, NULL if the amount reached 0
1718	*/	1514	*/
		1515	bool
		1516	object::decrease (sint32 nr)
		1517	{
		1518	if (!nr)
		1519	return true;
1719		1520
		1521	nr = min (nr, nrof);
		1522
		1523	nrof -= nr;
		1524
		1525	if (nrof)
		1526	{
		1527	adjust_weight (env, -weight * nr); // carrying == 0
		1528
		1529	if (object *pl = visible_to ())
		1530	esrv_update_item (UPD_NROF, pl, this);
		1531
		1532	return true;
		1533	}
		1534	else
		1535	{
		1536	destroy (1);
		1537	return false;
		1538	}
		1539	}
		1540
		1541	/*
		1542	* split(ob,nr) splits up ob into two parts. The part which
		1543	* is returned contains nr objects, and the remaining parts contains
		1544	* the rest (or is removed and returned if that number is 0).
		1545	* On failure, NULL is returned.
		1546	*/
1720	object *	1547	object *
1721	decrease_ob_nr (object *op, uint32 i)	1548	object::split (sint32 nr)
1722	{	1549	{
1723	object *tmp;	1550	int have = number_of ();
1724	player *pl;
1725		1551
1726	if (i == 0) /* objects with op->nrof require this check */	1552	if (have < nr)
1727	return op;	1553	return 0;
1728		1554	else if (have == nr)
1729	if (i > op->nrof)
1730	i = op->nrof;
1731
1732	if (QUERY_FLAG (op, FLAG_REMOVED))
1733	op->nrof -= i;
1734	else if (op->env != NULL)
1735	{	1555	{
1736	/* is this object in the players inventory, or sub container
1737	* therein?
1738	*/
1739	tmp = is_player_inv (op->env);
1740	/* nope. Is this a container the player has opened?
1741	* If so, set tmp to that player.
1742	* IMO, searching through all the players will mostly
1743	* likely be quicker than following op->env to the map,
1744	* and then searching the map for a player.
1745	*/
1746	if (!tmp)
1747	{
1748	for (pl = first_player; pl; pl = pl->next)
1749	if (pl->ob->container == op->env)
1750	break;
1751	if (pl)
1752	tmp = pl->ob;
1753	else
1754	tmp = NULL;
1755	}
1756
1757	if (i < op->nrof)
1758	{
1759	sub_weight (op->env, op->weight * i);
1760	op->nrof -= i;
1761	if (tmp)
1762	{
1763	esrv_send_item (tmp, op);
1764	}
1765	}
1766	else
1767	{
1768	remove_ob (op);	1556	remove ();
1769	op->nrof = 0;	1557	return this;
1770	if (tmp)
1771	{
1772	esrv_del_item (tmp->contr, op->count);
1773	}
1774	}
1775	}	1558	}
1776	else	1559	else
1777	{	1560	{
1778	object *above = op->above;	1561	decrease (nr);
1779		1562
1780	if (i < op->nrof)	1563	object *op = deep_clone ();
1781	op->nrof -= i;	1564	op->nrof = nr;
1782	else
1783	{
1784	remove_ob (op);
1785	op->nrof = 0;
1786	}
1787
1788	/* Since we just removed op, op->above is null */
1789	for (tmp = above; tmp != NULL; tmp = tmp->above)
1790	if (tmp->type == PLAYER)
1791	{
1792	if (op->nrof)
1793	esrv_send_item (tmp, op);
1794	else
1795	esrv_del_item (tmp->contr, op->count);
1796	}
1797	}
1798
1799	if (op->nrof)
1800	return op;	1565	return op;
1801	else
1802	{	1566	}
1803	free_object (op);	1567	}
		1568
		1569	object *
		1570	insert_ob_in_ob (object *op, object *where)
		1571	{
		1572	if (!where)
		1573	{
		1574	char *dump = dump_object (op);
		1575	LOG (llevError, "Trying to put object in NULL.\n%s\n", dump);
		1576	free (dump);
1804	return NULL;	1577	return op;
1805	}
1806	}
1807
1808	/*
1809	* add_weight(object, weight) adds the specified weight to an object,
1810	* and also updates how much the environment(s) is/are carrying.
1811	*/
1812
1813	void
1814	add_weight (object *op, signed long weight)
1815	{
1816	while (op != NULL)
1817	{	1578	}
1818	if (op->type == CONTAINER)
1819	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1820		1579
1821	op->carrying += weight;	1580	if (where->head_ () != where)
1822	op = op->env;
1823	}	1581	{
1824	}	1582	LOG (llevError | logBacktrace, "Warning: Tried to insert object into wrong part of multipart object.\n");
		1583	where = where->head;
		1584	}
1825		1585
		1586	return where->insert (op);
		1587	}
		1588
1826	/*	1589	/*
1827	* insert_ob_in_ob(op,environment):	1590	* env->insert (op)
1828	* This function inserts the object op in the linked list	1591	* This function inserts the object op in the linked list
1829	* inside the object environment.	1592	* inside the object environment.
1830	*	1593	*
1831	* Eneq(@csd.uu.se): Altered insert_ob_in_ob to make things picked up enter
1832	* the inventory at the last position or next to other objects of the same
1833	* type.
1834	* Frank: Now sorted by type, archetype and magic!
1835	*
1836	* The function returns now pointer to inserted item, and return value can	1594	* The function returns now pointer to inserted item, and return value can
1837	* be != op, if items are merged. -Tero	1595	* be != op, if items are merged. -Tero
1838	*/	1596	*/
1839
1840	object *	1597	object *
1841	insert_ob_in_ob (object *op, object *where)	1598	object::insert (object *op)
1842	{	1599	{
1843	object *
1844	tmp, *
1845	otmp;
1846
1847	if (!QUERY_FLAG (op, FLAG_REMOVED))
1848	{
1849	dump_object (op);
1850	LOG (llevError, "Trying to insert (ob) inserted object.\n%s\n", errmsg);
1851	return op;
1852	}
1853
1854	if (where == NULL)
1855	{
1856	dump_object (op);
1857	LOG (llevError, "Trying to put object in NULL.\n%s\n", errmsg);
1858	return op;
1859	}
1860
1861	if (where->head)
1862	{
1863	LOG (llevDebug, "Warning: Tried to insert object wrong part of multipart object.\n");
1864	where = where->head;
1865	}
1866
1867	if (op->more)	1600	if (op->more)
1868	{	1601	{
1869	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);	1602	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);
1870	return op;	1603	return op;
1871	}	1604	}
1872		1605
1873	CLEAR_FLAG (op, FLAG_OBJ_ORIGINAL);	1606	op->remove ();
1874	CLEAR_FLAG (op, FLAG_REMOVED);	1607
		1608	op->flag [FLAG_OBJ_ORIGINAL] = 0;
		1609
1875	if (op->nrof)	1610	if (op->nrof)
1876	{
1877	for (tmp = where->inv; tmp != NULL; tmp = tmp->below)	1611	for (object *tmp = inv; tmp; tmp = tmp->below)
1878	if (CAN_MERGE (tmp, op))	1612	if (object::can_merge (tmp, op))
1879	{	1613	{
1880	/* return the original object and remove inserted object	1614	/* return the original object and remove inserted object
1881	(client needs the original object) */	1615	(client needs the original object) */
1882	tmp->nrof += op->nrof;	1616	tmp->nrof += op->nrof;
1883	/* Weight handling gets pretty funky. Since we are adding to	1617
1884	* tmp->nrof, we need to increase the weight.	1618	if (object *pl = tmp->visible_to ())
1885	*/	1619	esrv_update_item (UPD_NROF, pl, tmp);
1886	add_weight (where, op->weight * op->nrof);	1620
1887	SET_FLAG (op, FLAG_REMOVED);	1621	adjust_weight (this, op->total_weight ());
1888	free_object (op); /* free the inserted object */	1622
		1623	op->destroy (1);
1889	op = tmp;	1624	op = tmp;
1890	remove_ob (op); /* and fix old object's links */	1625	goto inserted;
1891	CLEAR_FLAG (op, FLAG_REMOVED);
1892	break;
1893	}	1626	}
1894		1627
1895	/* I assume combined objects have no inventory	1628	op->owner = 0; // it's his/hers now. period.
1896	* We add the weight - this object could have just been removed
1897	* (if it was possible to merge). calling remove_ob will subtract
1898	* the weight, so we need to add it in again, since we actually do
1899	* the linking below
1900	*/
1901	add_weight (where, op->weight * op->nrof);
1902	}
1903	else
1904	add_weight (where, (op->weight + op->carrying));
1905
1906	otmp = is_player_inv (where);
1907	if (otmp && otmp->contr != NULL)
1908	{
1909	if (!QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1910	fix_player (otmp);
1911	}
1912
1913	op->map = NULL;	1629	op->map = 0;
1914	op->env = where;	1630	op->x = 0;
		1631	op->y = 0;
		1632
1915	op->above = NULL;	1633	op->above = 0;
1916	op->below = NULL;	1634	op->below = inv;
1917	op->x = 0, op->y = 0;	1635	op->env = this;
1918		1636
		1637	if (inv)
		1638	inv->above = op;
		1639
		1640	inv = op;
		1641
		1642	op->flag [FLAG_REMOVED] = 0;
		1643
		1644	if (object *pl = op->visible_to ())
		1645	esrv_send_item (pl, op);
		1646
		1647	adjust_weight (this, op->total_weight ());
		1648
		1649	inserted:
1919	/* reset the light list and los of the players on the map */	1650	/* reset the light list and los of the players on the map */
1920	if ((op->glow_radius != 0) && where->map)	1651	if (op->glow_radius && map && map->darkness)
1921	{	1652	update_all_los (map, x, y);
1922	#ifdef DEBUG_LIGHTS
1923	LOG (llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n", op->name);
1924	#endif /* DEBUG_LIGHTS */
1925	if (MAP_DARKNESS (where->map))
1926	update_all_los (where->map, where->x, where->y);
1927	}
1928		1653
1929	/* Client has no idea of ordering so lets not bother ordering it here.	1654	// if this is a player's inventory, update stats
1930	* It sure simplifies this function...	1655	if (type == PLAYER && !flag [FLAG_NO_FIX_PLAYER])
1931	*/	1656	update_stats ();
1932	if (where->inv == NULL)	1657
1933	where->inv = op;	1658	INVOKE_OBJECT (INSERT, this);
1934	else	1659
1935	{
1936	op->below = where->inv;
1937	op->below->above = op;
1938	where->inv = op;
1939	}
1940	return op;	1660	return op;
1941	}	1661	}
1942		1662
1943	/*	1663	/*
1944	* Checks if any objects has a move_type that matches objects	1664	* Checks if any objects has a move_type that matches objects
…		…
1958	*	1678	*
1959	* MSW 2001-07-08: Check all objects on space, not just those below	1679	* MSW 2001-07-08: Check all objects on space, not just those below
1960	* object being inserted. insert_ob_in_map may not put new objects	1680	* object being inserted. insert_ob_in_map may not put new objects
1961	* on top.	1681	* on top.
1962	*/	1682	*/
1963
1964	int	1683	int
1965	check_move_on (object *op, object *originator)	1684	check_move_on (object *op, object *originator)
1966	{	1685	{
1967	object *	1686	object *tmp;
1968	tmp;	1687	maptile *m = op->map;
1969	tag_t
1970	tag;
1971	mapstruct *
1972	m = op->map;
1973	int
1974	x = op->x, y = op->y;	1688	int x = op->x, y = op->y;
1975		1689
1976	MoveType	1690	MoveType move_on, move_slow, move_block;
1977	move_on,
1978	move_slow,
1979	move_block;
1980		1691
1981	if (QUERY_FLAG (op, FLAG_NO_APPLY))	1692	if (QUERY_FLAG (op, FLAG_NO_APPLY))
1982	return 0;	1693	return 0;
1983
1984	tag = op->count;
1985		1694
1986	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);	1695	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);
1987	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);	1696	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);
1988	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);	1697	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);
1989		1698
…		…
2005		1714
2006	/* The objects have to be checked from top to bottom.	1715	/* The objects have to be checked from top to bottom.
2007	* Hence, we first go to the top:	1716	* Hence, we first go to the top:
2008	*/	1717	*/
2009		1718
2010	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL && tmp->above != NULL; tmp = tmp->above)	1719	for (tmp = op->ms ().bot; tmp && tmp->above; tmp = tmp->above)
2011	{	1720	{
2012	/* Trim the search when we find the first other spell effect	1721	/* Trim the search when we find the first other spell effect
2013	* this helps performance so that if a space has 50 spell objects,	1722	* this helps performance so that if a space has 50 spell objects,
2014	* we don't need to check all of them.	1723	* we don't need to check all of them.
2015	*/	1724	*/
…		…
2033	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||	1742	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||
2034	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))	1743	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))
2035	{	1744	{
2036		1745
2037	float	1746	float
2038	diff = tmp->move_slow_penalty * FABS (op->speed);	1747	diff = tmp->move_slow_penalty * fabs (op->speed);
2039		1748
2040	if (op->type == PLAYER)	1749	if (op->type == PLAYER)
2041	if ((QUERY_FLAG (tmp, FLAG_IS_HILLY) && find_skill_by_number (op, SK_CLIMBING)) ||	1750	if ((QUERY_FLAG (tmp, FLAG_IS_HILLY) && find_skill_by_number (op, SK_CLIMBING)) ||
2042	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))	1751	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))
2043	diff /= 4.0;	1752	diff /= 4.0;
…		…
2050	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||	1759	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||
2051	((op->move_type & tmp->move_on) && (op->move_type & ~tmp->move_on & ~tmp->move_block) == 0))	1760	((op->move_type & tmp->move_on) && (op->move_type & ~tmp->move_on & ~tmp->move_block) == 0))
2052	{	1761	{
2053	move_apply (tmp, op, originator);	1762	move_apply (tmp, op, originator);
2054		1763
2055	if (was_destroyed (op, tag))	1764	if (op->destroyed ())
2056	return 1;	1765	return 1;
2057		1766
2058	/* what the person/creature stepped onto has moved the object	1767	/* what the person/creature stepped onto has moved the object
2059	* someplace new. Don't process any further - if we did,	1768	* someplace new. Don't process any further - if we did,
2060	* have a feeling strange problems would result.	1769	* have a feeling strange problems would result.
…		…
2070	/*	1779	/*
2071	* present_arch(arch, map, x, y) searches for any objects with	1780	* present_arch(arch, map, x, y) searches for any objects with
2072	* a matching archetype at the given map and coordinates.	1781	* a matching archetype at the given map and coordinates.
2073	* The first matching object is returned, or NULL if none.	1782	* The first matching object is returned, or NULL if none.
2074	*/	1783	*/
2075
2076	object *	1784	object *
2077	present_arch (const archetype *at, mapstruct *m, int x, int y)	1785	present_arch (const archetype *at, maptile *m, int x, int y)
2078	{	1786	{
2079	object *
2080	tmp;
2081
2082	if (m == NULL || out_of_map (m, x, y))	1787	if (!m || out_of_map (m, x, y))
2083	{	1788	{
2084	LOG (llevError, "Present_arch called outside map.\n");	1789	LOG (llevError, "Present_arch called outside map.\n");
2085	return NULL;	1790	return NULL;
2086	}	1791	}
2087	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)	1792
2088	if (tmp->arch == at)	1793	for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)
		1794	if (tmp->arch->archname == at->archname)
2089	return tmp;	1795	return tmp;
		1796
2090	return NULL;	1797	return NULL;
2091	}	1798	}
2092		1799
2093	/*	1800	/*
2094	* present(type, map, x, y) searches for any objects with	1801	* present(type, map, x, y) searches for any objects with
2095	* a matching type variable at the given map and coordinates.	1802	* a matching type variable at the given map and coordinates.
2096	* The first matching object is returned, or NULL if none.	1803	* The first matching object is returned, or NULL if none.
2097	*/	1804	*/
2098
2099	object *	1805	object *
2100	present (unsigned char type, mapstruct *m, int x, int y)	1806	present (unsigned char type, maptile *m, int x, int y)
2101	{	1807	{
2102	object *
2103	tmp;
2104
2105	if (out_of_map (m, x, y))	1808	if (out_of_map (m, x, y))
2106	{	1809	{
2107	LOG (llevError, "Present called outside map.\n");	1810	LOG (llevError, "Present called outside map.\n");
2108	return NULL;	1811	return NULL;
2109	}	1812	}
2110	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)	1813
		1814	for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)
2111	if (tmp->type == type)	1815	if (tmp->type == type)
2112	return tmp;	1816	return tmp;
		1817
2113	return NULL;	1818	return NULL;
2114	}	1819	}
2115		1820
2116	/*	1821	/*
2117	* present_in_ob(type, object) searches for any objects with	1822	* present_in_ob(type, object) searches for any objects with
2118	* a matching type variable in the inventory of the given object.	1823	* a matching type variable in the inventory of the given object.
2119	* The first matching object is returned, or NULL if none.	1824	* The first matching object is returned, or NULL if none.
2120	*/	1825	*/
2121
2122	object *	1826	object *
2123	present_in_ob (unsigned char type, const object *op)	1827	present_in_ob (unsigned char type, const object *op)
2124	{	1828	{
2125	object *
2126	tmp;
2127
2128	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1829	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
2129	if (tmp->type == type)	1830	if (tmp->type == type)
2130	return tmp;	1831	return tmp;
		1832
2131	return NULL;	1833	return NULL;
2132	}	1834	}
2133		1835
2134	/*	1836	/*
2135	* present_in_ob (type, str, object) searches for any objects with	1837	* present_in_ob (type, str, object) searches for any objects with
…		…
2143	* str is the string to match against. Note that we match against	1845	* str is the string to match against. Note that we match against
2144	* the object name, not the archetype name. this is so that the	1846	* the object name, not the archetype name. this is so that the
2145	* spell code can use one object type (force), but change it's name	1847	* spell code can use one object type (force), but change it's name
2146	* to be unique.	1848	* to be unique.
2147	*/	1849	*/
2148
2149	object *	1850	object *
2150	present_in_ob_by_name (int type, const char *str, const object *op)	1851	present_in_ob_by_name (int type, const char *str, const object *op)
2151	{	1852	{
2152	object *
2153	tmp;
2154
2155	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1853	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2156	{
2157	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))	1854	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))
2158	return tmp;	1855	return tmp;
2159	}	1856
2160	return NULL;	1857	return 0;
2161	}	1858	}
2162		1859
2163	/*	1860	/*
2164	* present_arch_in_ob(archetype, object) searches for any objects with	1861	* present_arch_in_ob(archetype, object) searches for any objects with
2165	* a matching archetype in the inventory of the given object.	1862	* a matching archetype in the inventory of the given object.
2166	* The first matching object is returned, or NULL if none.	1863	* The first matching object is returned, or NULL if none.
2167	*/	1864	*/
2168
2169	object *	1865	object *
2170	present_arch_in_ob (const archetype *at, const object *op)	1866	present_arch_in_ob (const archetype *at, const object *op)
2171	{	1867	{
2172	object *
2173	tmp;
2174
2175	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1868	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2176	if (tmp->arch == at)	1869	if (tmp->arch->archname == at->archname)
2177	return tmp;	1870	return tmp;
		1871
2178	return NULL;	1872	return NULL;
2179	}	1873	}
2180		1874
2181	/*	1875	/*
2182	* activate recursively a flag on an object inventory	1876	* activate recursively a flag on an object inventory
2183	*/	1877	*/
2184	void	1878	void
2185	flag_inv (object *op, int flag)	1879	flag_inv (object *op, int flag)
2186	{	1880	{
2187	object *
2188	tmp;
2189
2190	if (op->inv)
2191	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1881	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2192	{	1882	{
2193	SET_FLAG (tmp, flag);	1883	SET_FLAG (tmp, flag);
2194	flag_inv (tmp, flag);	1884	flag_inv (tmp, flag);
2195	}	1885	}
2196	} /*	1886	}
		1887
		1888	/*
2197	* desactivate recursively a flag on an object inventory	1889	* deactivate recursively a flag on an object inventory
2198	*/	1890	*/
2199	void	1891	void
2200	unflag_inv (object *op, int flag)	1892	unflag_inv (object *op, int flag)
2201	{	1893	{
2202	object *
2203	tmp;
2204
2205	if (op->inv)
2206	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1894	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2207	{	1895	{
2208	CLEAR_FLAG (tmp, flag);	1896	CLEAR_FLAG (tmp, flag);
2209	unflag_inv (tmp, flag);	1897	unflag_inv (tmp, flag);
2210	}	1898	}
2211	}
2212
2213	/*
2214	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in
2215	* all it's inventory (recursively).
2216	* If checksums are used, a player will get set_cheat called for
2217	* him/her-self and all object carried by a call to this function.
2218	*/
2219
2220	void
2221	set_cheat (object *op)
2222	{
2223	SET_FLAG (op, FLAG_WAS_WIZ);
2224	flag_inv (op, FLAG_WAS_WIZ);
2225	}	1899	}
2226		1900
2227	/*	1901	/*
2228	* find_free_spot(object, map, x, y, start, stop) will search for	1902	* find_free_spot(object, map, x, y, start, stop) will search for
2229	* a spot at the given map and coordinates which will be able to contain	1903	* a spot at the given map and coordinates which will be able to contain
…		…
2231	* to search (see the freearr_x/y[] definition).	1905	* to search (see the freearr_x/y[] definition).
2232	* It returns a random choice among the alternatives found.	1906	* It returns a random choice among the alternatives found.
2233	* start and stop are where to start relative to the free_arr array (1,9	1907	* start and stop are where to start relative to the free_arr array (1,9
2234	* does all 4 immediate directions). This returns the index into the	1908	* does all 4 immediate directions). This returns the index into the
2235	* array of the free spot, -1 if no spot available (dir 0 = x,y)	1909	* array of the free spot, -1 if no spot available (dir 0 = x,y)
2236	* Note - this only checks to see if there is space for the head of the
2237	* object - if it is a multispace object, this should be called for all
2238	* pieces.
2239	* Note2: This function does correctly handle tiled maps, but does not	1910	* Note: This function does correctly handle tiled maps, but does not
2240	* inform the caller. However, insert_ob_in_map will update as	1911	* inform the caller. However, insert_ob_in_map will update as
2241	* necessary, so the caller shouldn't need to do any special work.	1912	* necessary, so the caller shouldn't need to do any special work.
2242	* Note - updated to take an object instead of archetype - this is necessary	1913	* Note - updated to take an object instead of archetype - this is necessary
2243	* because arch_blocked (now ob_blocked) needs to know the movement type	1914	* because arch_blocked (now ob_blocked) needs to know the movement type
2244	* to know if the space in question will block the object. We can't use	1915	* to know if the space in question will block the object. We can't use
2245	* the archetype because that isn't correct if the monster has been	1916	* the archetype because that isn't correct if the monster has been
2246	* customized, changed states, etc.	1917	* customized, changed states, etc.
2247	*/	1918	*/
2248
2249	int	1919	int
2250	find_free_spot (const object *ob, mapstruct *m, int x, int y, int start, int stop)	1920	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)
2251	{	1921	{
2252	int
2253	i,
2254	index = 0, flag;
2255	static int
2256	altern[SIZEOFFREE];	1922	int altern[SIZEOFFREE];
		1923	int index = 0, flag;
2257		1924
2258	for (i = start; i < stop; i++)	1925	for (int i = start; i < stop; i++)
2259	{	1926	{
2260	flag = ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]);	1927	mapxy pos (m, x, y); pos.move (i);
2261	if (!flag)	1928
		1929	if (!pos.normalise ())
		1930	continue;
		1931
		1932	mapspace &ms = *pos;
		1933
		1934	if (ms.flags () & P_IS_ALIVE)
		1935	continue;
		1936
		1937	/* However, often
		1938	* ob doesn't have any move type (when used to place exits)
		1939	* so the AND operation in OB_TYPE_MOVE_BLOCK doesn't work.
		1940	*/
		1941	if (ob && ob->move_type == 0 && ms.move_block != MOVE_ALL)
		1942	{
2262	altern[index++] = i;	1943	altern [index++] = i;
		1944	continue;
		1945	}
2263		1946
2264	/* Basically, if we find a wall on a space, we cut down the search size.	1947	/* Basically, if we find a wall on a space, we cut down the search size.
2265	* In this way, we won't return spaces that are on another side of a wall.	1948	* In this way, we won't return spaces that are on another side of a wall.
2266	* This mostly work, but it cuts down the search size in all directions -	1949	* This mostly work, but it cuts down the search size in all directions -
2267	* if the space being examined only has a wall to the north and empty	1950	* if the space being examined only has a wall to the north and empty
2268	* spaces in all the other directions, this will reduce the search space	1951	* spaces in all the other directions, this will reduce the search space
2269	* to only the spaces immediately surrounding the target area, and	1952	* to only the spaces immediately surrounding the target area, and
2270	* won't look 2 spaces south of the target space.	1953	* won't look 2 spaces south of the target space.
2271	*/	1954	*/
2272	else if ((flag & AB_NO_PASS) && maxfree[i] < stop)	1955	if (ms.move_block == MOVE_ALL && maxfree[i] < stop)
		1956	{
2273	stop = maxfree[i];	1957	stop = maxfree[i];
		1958	continue;
		1959	}
		1960
		1961	/* Note it is intentional that we check ob - the movement type of the
		1962	* head of the object should correspond for the entire object.
		1963	*/
		1964	if (OB_TYPE_MOVE_BLOCK (ob, ms.move_block))
		1965	continue;
		1966
		1967	if (ob->blocked (m, pos.x, pos.y))
		1968	continue;
		1969
		1970	altern [index++] = i;
2274	}	1971	}
		1972
2275	if (!index)	1973	if (!index)
2276	return -1;	1974	return -1;
		1975
2277	return altern[RANDOM () % index];	1976	return altern [rndm (index)];
2278	}	1977	}
2279		1978
2280	/*	1979	/*
2281	* find_first_free_spot(archetype, mapstruct, x, y) works like	1980	* find_first_free_spot(archetype, maptile, x, y) works like
2282	* find_free_spot(), but it will search max number of squares.	1981	* find_free_spot(), but it will search max number of squares.
2283	* But it will return the first available spot, not a random choice.	1982	* But it will return the first available spot, not a random choice.
2284	* Changed 0.93.2: Have it return -1 if there is no free spot available.	1983	* Changed 0.93.2: Have it return -1 if there is no free spot available.
2285	*/	1984	*/
2286
2287	int	1985	int
2288	find_first_free_spot (const object *ob, mapstruct *m, int x, int y)	1986	find_first_free_spot (const object *ob, maptile *m, int x, int y)
2289	{	1987	{
2290	int
2291	i;
2292
2293	for (i = 0; i < SIZEOFFREE; i++)	1988	for (int i = 0; i < SIZEOFFREE; i++)
2294	{
2295	if (!ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]))	1989	if (!ob->blocked (m, x + freearr_x[i], y + freearr_y[i]))
2296	return i;	1990	return i;
2297	}	1991
2298	return -1;	1992	return -1;
2299	}	1993	}
2300		1994
2301	/*	1995	/*
2302	* The function permute(arr, begin, end) randomly reorders the array	1996	* The function permute(arr, begin, end) randomly reorders the array
2303	* arr[begin..end-1].	1997	* arr[begin..end-1].
		1998	* now uses a fisher-yates shuffle, old permute was broken
2304	*/	1999	*/
2305	static void	2000	static void
2306	permute (int *arr, int begin, int end)	2001	permute (int *arr, int begin, int end)
2307	{	2002	{
2308	int	2003	arr += begin;
2309	i,
2310	j,
2311	tmp,
2312	len;
2313
2314	len = end - begin;	2004	end -= begin;
2315	for (i = begin; i < end; i++)
2316	{
2317	j = begin + RANDOM () % len;
2318		2005
2319	tmp = arr[i];	2006	while (--end)
2320	arr[i] = arr[j];	2007	swap (arr [end], arr [rndm (end + 1)]);
2321	arr[j] = tmp;
2322	}
2323	}	2008	}
2324		2009
2325	/* new function to make monster searching more efficient, and effective!	2010	/* new function to make monster searching more efficient, and effective!
2326	* This basically returns a randomized array (in the passed pointer) of	2011	* This basically returns a randomized array (in the passed pointer) of
2327	* the spaces to find monsters. In this way, it won't always look for	2012	* the spaces to find monsters. In this way, it won't always look for
…		…
2330	* the 3x3 area will be searched, just not in a predictable order.	2015	* the 3x3 area will be searched, just not in a predictable order.
2331	*/	2016	*/
2332	void	2017	void
2333	get_search_arr (int *search_arr)	2018	get_search_arr (int *search_arr)
2334	{	2019	{
2335	int	2020	int i;
2336	i;
2337		2021
2338	for (i = 0; i < SIZEOFFREE; i++)	2022	for (i = 0; i < SIZEOFFREE; i++)
2339	{
2340	search_arr[i] = i;	2023	search_arr[i] = i;
2341	}
2342		2024
2343	permute (search_arr, 1, SIZEOFFREE1 + 1);	2025	permute (search_arr, 1, SIZEOFFREE1 + 1);
2344	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);	2026	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);
2345	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);	2027	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);
2346	}	2028	}
…		…
2355	* Perhaps incorrectly, but I'm making the assumption that exclude	2037	* Perhaps incorrectly, but I'm making the assumption that exclude
2356	* is actually want is going to try and move there. We need this info	2038	* is actually want is going to try and move there. We need this info
2357	* because we have to know what movement the thing looking to move	2039	* because we have to know what movement the thing looking to move
2358	* there is capable of.	2040	* there is capable of.
2359	*/	2041	*/
2360
2361	int	2042	int
2362	find_dir (mapstruct *m, int x, int y, object *exclude)	2043	find_dir (maptile *m, int x, int y, object *exclude)
2363	{	2044	{
2364	int
2365	i,
2366	max = SIZEOFFREE, mflags;	2045	int i, max = SIZEOFFREE, mflags;
2367		2046
2368	sint16 nx, ny;	2047	sint16 nx, ny;
2369	object *	2048	object *tmp;
2370	tmp;	2049	maptile *mp;
2371	mapstruct *
2372	mp;
2373		2050
2374	MoveType blocked, move_type;	2051	MoveType blocked, move_type;
2375		2052
2376	if (exclude && exclude->head)	2053	if (exclude && exclude->head_ () != exclude)
2377	{	2054	{
2378	exclude = exclude->head;	2055	exclude = exclude->head;
2379	move_type = exclude->move_type;	2056	move_type = exclude->move_type;
2380	}	2057	}
2381	else	2058	else
…		…
2389	mp = m;	2066	mp = m;
2390	nx = x + freearr_x[i];	2067	nx = x + freearr_x[i];
2391	ny = y + freearr_y[i];	2068	ny = y + freearr_y[i];
2392		2069
2393	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);	2070	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);
		2071
2394	if (mflags & P_OUT_OF_MAP)	2072	if (mflags & P_OUT_OF_MAP)
2395	{
2396	max = maxfree[i];	2073	max = maxfree[i];
2397	}
2398	else	2074	else
2399	{	2075	{
2400	blocked = GET_MAP_MOVE_BLOCK (mp, nx, ny);	2076	mapspace &ms = mp->at (nx, ny);
		2077
		2078	blocked = ms.move_block;
2401		2079
2402	if ((move_type & blocked) == move_type)	2080	if ((move_type & blocked) == move_type)
2403	{
2404	max = maxfree[i];	2081	max = maxfree[i];
2405	}
2406	else if (mflags & P_IS_ALIVE)	2082	else if (mflags & P_IS_ALIVE)
2407	{	2083	{
2408	for (tmp = GET_MAP_OB (mp, nx, ny); tmp != NULL; tmp = tmp->above)	2084	for (tmp = ms.bot; tmp; tmp = tmp->above)
2409	{	2085	if ((tmp->flag [FLAG_MONSTER] || tmp->type == PLAYER)
2410	if ((QUERY_FLAG (tmp, FLAG_MONSTER) || tmp->type == PLAYER) && (tmp != exclude || (tmp->head && tmp->head != exclude)))	2086	&& (tmp != exclude || (tmp->head_ () != tmp && tmp->head_ () != exclude)))
2411	{
2412	break;	2087	break;
2413	}	2088
2414	}
2415	if (tmp)	2089	if (tmp)
2416	{
2417	return freedir[i];	2090	return freedir[i];
2418	}
2419	}	2091	}
2420	}	2092	}
2421	}	2093	}
		2094
2422	return 0;	2095	return 0;
2423	}	2096	}
2424		2097
2425	/*	2098	/*
2426	* distance(object 1, object 2) will return the square of the	2099	* distance(object 1, object 2) will return the square of the
2427	* distance between the two given objects.	2100	* distance between the two given objects.
2428	*/	2101	*/
2429
2430	int	2102	int
2431	distance (const object *ob1, const object *ob2)	2103	distance (const object *ob1, const object *ob2)
2432	{	2104	{
2433	int
2434	i;
2435
2436	i = (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);	2105	return (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);
2437	return i;
2438	}	2106	}
2439		2107
2440	/*	2108	/*
2441	* find_dir_2(delta-x,delta-y) will return a direction in which	2109	* find_dir_2(delta-x,delta-y) will return a direction in which
2442	* an object which has subtracted the x and y coordinates of another	2110	* an object which has subtracted the x and y coordinates of another
2443	* object, needs to travel toward it.	2111	* object, needs to travel toward it.
2444	*/	2112	*/
2445
2446	int	2113	int
2447	find_dir_2 (int x, int y)	2114	find_dir_2 (int x, int y)
2448	{	2115	{
2449	int	2116	int q;
2450	q;
2451		2117
2452	if (y)	2118	if (y)
2453	q = x * 100 / y;	2119	q = x * 100 / y;
2454	else if (x)	2120	else if (x)
2455	q = -300 * x;	2121	q = -300 * x;
…		…
2480		2146
2481	return 3;	2147	return 3;
2482	}	2148	}
2483		2149
2484	/*	2150	/*
2485	* absdir(int): Returns a number between 1 and 8, which represent
2486	* the "absolute" direction of a number (it actually takes care of
2487	* "overflow" in previous calculations of a direction).
2488	*/
2489
2490	int
2491	absdir (int d)
2492	{
2493	while (d < 1)
2494	d += 8;
2495	while (d > 8)
2496	d -= 8;
2497	return d;
2498	}
2499
2500	/*
2501	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is	2151	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is
2502	* between two directions (which are expected to be absolute (see absdir())	2152	* between two directions (which are expected to be absolute (see absdir())
2503	*/	2153	*/
2504
2505	int	2154	int
2506	dirdiff (int dir1, int dir2)	2155	dirdiff (int dir1, int dir2)
2507	{	2156	{
2508	int	2157	int d;
2509	d;
2510		2158
2511	d = abs (dir1 - dir2);	2159	d = abs (dir1 - dir2);
2512	if (d > 4)	2160	if (d > 4)
2513	d = 8 - d;	2161	d = 8 - d;
		2162
2514	return d;	2163	return d;
2515	}	2164	}
2516		2165
2517	/* peterm:	2166	/* peterm:
2518	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.	2167	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.
…		…
2521	* This basically means that if direction is 15, then it could either go	2170	* This basically means that if direction is 15, then it could either go
2522	* direction 4, 14, or 16 to get back to where we are.	2171	* direction 4, 14, or 16 to get back to where we are.
2523	* Moved from spell_util.c to object.c with the other related direction	2172	* Moved from spell_util.c to object.c with the other related direction
2524	* functions.	2173	* functions.
2525	*/	2174	*/
2526
2527	int
2528	reduction_dir[SIZEOFFREE][3] = {	2175	int reduction_dir[SIZEOFFREE][3] = {
2529	{0, 0, 0}, /* 0 */	2176	{0, 0, 0}, /* 0 */
2530	{0, 0, 0}, /* 1 */	2177	{0, 0, 0}, /* 1 */
2531	{0, 0, 0}, /* 2 */	2178	{0, 0, 0}, /* 2 */
2532	{0, 0, 0}, /* 3 */	2179	{0, 0, 0}, /* 3 */
2533	{0, 0, 0}, /* 4 */	2180	{0, 0, 0}, /* 4 */
…		…
2581	* find a path to that monster that we found. If not,	2228	* find a path to that monster that we found. If not,
2582	* we don't bother going toward it. Returns 1 if we	2229	* we don't bother going toward it. Returns 1 if we
2583	* can see a direct way to get it	2230	* can see a direct way to get it
2584	* Modified to be map tile aware -.MSW	2231	* Modified to be map tile aware -.MSW
2585	*/	2232	*/
2586
2587
2588	int	2233	int
2589	can_see_monsterP (mapstruct *m, int x, int y, int dir)	2234	can_see_monsterP (maptile *m, int x, int y, int dir)
2590	{	2235	{
2591	sint16 dx, dy;	2236	sint16 dx, dy;
2592	int
2593	mflags;	2237	int mflags;
2594		2238
2595	if (dir < 0)	2239	if (dir < 0)
2596	return 0; /* exit condition: invalid direction */	2240	return 0; /* exit condition: invalid direction */
2597		2241
2598	dx = x + freearr_x[dir];	2242	dx = x + freearr_x[dir];
…		…
2611	return 0;	2255	return 0;
2612		2256
2613	/* yes, can see. */	2257	/* yes, can see. */
2614	if (dir < 9)	2258	if (dir < 9)
2615	return 1;	2259	return 1;
		2260
2616	return can_see_monsterP (m, x, y, reduction_dir[dir][0]) |	2261	return can_see_monsterP (m, x, y, reduction_dir[dir][0])
2617	can_see_monsterP (m, x, y, reduction_dir[dir][1]) | can_see_monsterP (m, x, y, reduction_dir[dir][2]);	2262	| can_see_monsterP (m, x, y, reduction_dir[dir][1])
		2263	| can_see_monsterP (m, x, y, reduction_dir[dir][2]);
2618	}	2264	}
2619
2620
2621		2265
2622	/*	2266	/*
2623	* can_pick(picker, item): finds out if an object is possible to be	2267	* can_pick(picker, item): finds out if an object is possible to be
2624	* picked up by the picker. Returnes 1 if it can be	2268	* picked up by the picker. Returnes 1 if it can be
2625	* picked up, otherwise 0.	2269	* picked up, otherwise 0.
…		…
2627	* Cf 0.91.3 - don't let WIZ's pick up anything - will likely cause	2271	* Cf 0.91.3 - don't let WIZ's pick up anything - will likely cause
2628	* core dumps if they do.	2272	* core dumps if they do.
2629	*	2273	*
2630	* Add a check so we can't pick up invisible objects (0.93.8)	2274	* Add a check so we can't pick up invisible objects (0.93.8)
2631	*/	2275	*/
2632
2633	int	2276	int
2634	can_pick (const object *who, const object *item)	2277	can_pick (const object *who, const object *item)
2635	{	2278	{
2636	return /*QUERY_FLAG(who,FLAG_WIZ)|| */	2279	return /*QUERY_FLAG(who,FLAG_WIZ)|| */
2637	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&	2280	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&
2638	!QUERY_FLAG (item, FLAG_ALIVE) && !item->invisible && (who->type == PLAYER || item->weight < who->weight / 3));	2281	!QUERY_FLAG (item, FLAG_ALIVE) && !item->invisible && (who->type == PLAYER || item->weight < who->weight / 3));
2639	}	2282	}
2640		2283
2641
2642	/*	2284	/*
2643	* create clone from object to another	2285	* create clone from object to another
2644	*/	2286	*/
2645	object *	2287	object *
2646	object_create_clone (object *asrc)	2288	object::deep_clone ()
2647	{	2289	{
2648	object *	2290	assert (("deep_clone called on non-head object", is_head ()));
2649	dst = NULL, *tmp, *src, *part, *prev, *item;
2650		2291
2651	if (!asrc)	2292	object *dst = clone ();
2652	return NULL;
2653	src = asrc;
2654	if (src->head)
2655	src = src->head;
2656		2293
2657	prev = NULL;	2294	object *prev = dst;
2658	for (part = src; part; part = part->more)	2295	for (object *part = this->more; part; part = part->more)
2659	{	2296	{
2660	tmp = get_object ();	2297	object *tmp = part->clone ();
2661	copy_object (part, tmp);
2662	tmp->x -= src->x;
2663	tmp->y -= src->y;
2664	if (!part->head)
2665	{
2666	dst = tmp;
2667	tmp->head = NULL;
2668	}
2669	else
2670	{
2671	tmp->head = dst;	2298	tmp->head = dst;
2672	}
2673	tmp->more = NULL;
2674	if (prev)
2675	prev->more = tmp;	2299	prev->more = tmp;
2676	prev = tmp;	2300	prev = tmp;
2677	}	2301	}
2678		2302
2679	/*** copy inventory ***/
2680	for (item = src->inv; item; item = item->below)	2303	for (object *item = inv; item; item = item->below)
2681	{	2304	insert_ob_in_ob (item->deep_clone (), dst);
2682	(void) insert_ob_in_ob (object_create_clone (item), dst);
2683	}
2684		2305
2685	return dst;	2306	return dst;
2686	}
2687
2688	/* return true if the object was destroyed, 0 otherwise */
2689	int
2690	was_destroyed (const object *op, tag_t old_tag)
2691	{
2692	/* checking for FLAG_FREED isn't necessary, but makes this function more
2693	* robust */
2694	return op->count != old_tag || QUERY_FLAG (op, FLAG_FREED);
2695	}
2696
2697	/* GROS - Creates an object using a string representing its content. */
2698
2699	/* Basically, we save the content of the string to a temp file, then call */
2700
2701	/* load_object on it. I admit it is a highly inefficient way to make things, */
2702
2703	/* but it was simple to make and allows reusing the load_object function. */
2704
2705	/* Remember not to use load_object_str in a time-critical situation. */
2706
2707	/* Also remember that multiparts objects are not supported for now. */
2708
2709	object *
2710	load_object_str (const char *obstr)
2711	{
2712	object *
2713	op;
2714	char
2715	filename[MAX_BUF];
2716
2717	sprintf (filename, "%s/cfloadobstr2044", settings.tmpdir);
2718
2719	FILE *
2720	tempfile = fopen (filename, "w");
2721
2722	if (tempfile == NULL)
2723	{
2724	LOG (llevError, "Error - Unable to access load object temp file\n");
2725	return NULL;
2726	}
2727
2728	fprintf (tempfile, obstr);
2729	fclose (tempfile);
2730
2731	op = get_object ();
2732
2733	object_thawer thawer (filename);
2734
2735	if (thawer)
2736	load_object (thawer, op, 0);
2737
2738	LOG (llevDebug, " load str completed, object=%s\n", &op->name);
2739	CLEAR_FLAG (op, FLAG_REMOVED);
2740
2741	return op;
2742	}	2307	}
2743		2308
2744	/* This returns the first object in who's inventory that	2309	/* This returns the first object in who's inventory that
2745	* has the same type and subtype match.	2310	* has the same type and subtype match.
2746	* returns NULL if no match.	2311	* returns NULL if no match.
2747	*/	2312	*/
2748	object *	2313	object *
2749	find_obj_by_type_subtype (const object *who, int type, int subtype)	2314	find_obj_by_type_subtype (const object *who, int type, int subtype)
2750	{	2315	{
2751	object *
2752	tmp;
2753
2754	for (tmp = who->inv; tmp; tmp = tmp->below)	2316	for (object *tmp = who->inv; tmp; tmp = tmp->below)
2755	if (tmp->type == type && tmp->subtype == subtype)	2317	if (tmp->type == type && tmp->subtype == subtype)
2756	return tmp;	2318	return tmp;
2757		2319
2758	return NULL;
2759	}
2760
2761	/* If ob has a field named key, return the link from the list,
2762	* otherwise return NULL.
2763	*
2764	* key must be a passed in shared string - otherwise, this won't
2765	* do the desired thing.
2766	*/
2767	key_value *
2768	get_ob_key_link (const object *ob, const char *key)
2769	{
2770	key_value *
2771	link;
2772
2773	for (link = ob->key_values; link != NULL; link = link->next)
2774	{
2775	if (link->key == key)
2776	{
2777	return link;
2778	}
2779	}
2780
2781	return NULL;
2782	}
2783
2784	/*
2785	* Returns the value of op has an extra_field for key, or NULL.
2786	*
2787	* The argument doesn't need to be a shared string.
2788	*
2789	* The returned string is shared.
2790	*/
2791	const char *
2792	get_ob_key_value (const object *op, const char *const key)
2793	{
2794	key_value *link;
2795	shstr_cmp canonical_key (key);
2796
2797	if (!canonical_key)
2798	{
2799	/* 1. There being a field named key on any object
2800	* implies there'd be a shared string to find.
2801	* 2. Since there isn't, no object has this field.
2802	* 3. Therefore, *this* object doesn't have this field.
2803	*/
2804	return 0;
2805	}
2806
2807	/* This is copied from get_ob_key_link() above -
2808	* only 4 lines, and saves the function call overhead.
2809	*/
2810	for (link = op->key_values; link; link = link->next)
2811	if (link->key == canonical_key)
2812	return link->value;
2813
2814	return 0;	2320	return 0;
2815	}	2321	}
2816		2322
2817		2323	const shstr &
2818	/*	2324	object::kv_get (const shstr &key) const
2819	* Updates the canonical_key in op to value.
2820	*
2821	* canonical_key is a shared string (value doesn't have to be).
2822	*
2823	* Unless add_key is TRUE, it won't add fields, only change the value of existing
2824	* keys.
2825	*
2826	* Returns TRUE on success.
2827	*/
2828	int
2829	set_ob_key_value_s (object *op, const shstr & canonical_key, const char *value, int add_key)
2830	{	2325	{
2831	key_value *	2326	for (key_value *kv = key_values; kv; kv = kv->next)
2832	field = NULL, *last = NULL;	2327	if (kv->key == key)
		2328	return kv->value;
2833		2329
2834	for (field = op->key_values; field != NULL; field = field->next)	2330	return shstr_null;
2835	{	2331	}
2836	if (field->key != canonical_key)	2332
		2333	void
		2334	object::kv_set (const shstr &key, const shstr &value)
		2335	{
		2336	for (key_value *kv = key_values; kv; kv = kv->next)
		2337	if (kv->key == key)
2837	{	2338	{
2838	last = field;	2339	kv->value = value;
2839	continue;	2340	return;
2840	}	2341	}
2841		2342
2842	if (value)	2343	key_value *kv = new key_value;
2843	field->value = value;	2344
2844	else	2345	kv->next = key_values;
		2346	kv->key = key;
		2347	kv->value = value;
		2348
		2349	key_values = kv;
		2350	}
		2351
		2352	void
		2353	object::kv_del (const shstr &key)
		2354	{
		2355	for (key_value **kvp = &key_values; *kvp; kvp = &(*kvp)->next)
		2356	if ((*kvp)->key == key)
2845	{	2357	{
2846	/* Basically, if the archetype has this key set,	2358	key_value *kv = *kvp;
2847	* we need to store the null value so when we save	2359	*kvp = (*kvp)->next;
2848	* it, we save the empty value so that when we load,	2360	delete kv;
2849	* we get this value back again.	2361	return;
2850	*/
2851	if (get_ob_key_link (&op->arch->clone, canonical_key))
2852	field->value = 0;
2853	else
2854	{
2855	if (last)
2856	last->next = field->next;
2857	else
2858	op->key_values = field->next;
2859
2860	delete field;
2861	}
2862	}	2362	}
2863	return TRUE;
2864	}
2865	/* IF we get here, key doesn't exist */
2866
2867	/* No field, we'll have to add it. */
2868
2869	if (!add_key)
2870	{
2871	return FALSE;
2872	}
2873	/* There isn't any good reason to store a null
2874	* value in the key/value list. If the archetype has
2875	* this key, then we should also have it, so shouldn't
2876	* be here. If user wants to store empty strings,
2877	* should pass in ""
2878	*/
2879	if (value == NULL)
2880	return TRUE;
2881
2882	field = new key_value;
2883
2884	field->key = canonical_key;
2885	field->value = value;
2886	/* Usual prepend-addition. */
2887	field->next = op->key_values;
2888	op->key_values = field;
2889
2890	return TRUE;
2891	}
2892
2893	/*
2894	* Updates the key in op to value.
2895	*
2896	* If add_key is FALSE, this will only update existing keys,
2897	* and not add new ones.
2898	* In general, should be little reason FALSE is ever passed in for add_key
2899	*
2900	* Returns TRUE on success.
2901	*/
2902	int
2903	set_ob_key_value (object *op, const char *key, const char *value, int add_key)
2904	{
2905	shstr key_ (key);
2906
2907	return set_ob_key_value_s (op, key_, value, add_key);
2908	}	2363	}
2909		2364
2910	object::depth_iterator::depth_iterator (object *container)	2365	object::depth_iterator::depth_iterator (object *container)
2911	: iterator_base (container)	2366	: iterator_base (container)
2912	{	2367	{
…		…
2926	}	2381	}
2927	else	2382	else
2928	item = item->env;	2383	item = item->env;
2929	}	2384	}
2930		2385
		2386	const char *
		2387	object::flag_desc (char *desc, int len) const
		2388	{
		2389	char *p = desc;
		2390	bool first = true;
		2391
		2392	*p = 0;
		2393
		2394	for (int i = 0; i < NUM_FLAGS; i++)
		2395	{
		2396	if (len <= 10) // magic constant!
		2397	{
		2398	snprintf (p, len, ",...");
		2399	break;
		2400	}
		2401
		2402	if (flag [i])
		2403	{
		2404	int cnt = snprintf (p, len, "%s%d", first ? "" : ",", i);
		2405	len -= cnt;
		2406	p += cnt;
		2407	first = false;
		2408	}
		2409	}
		2410
		2411	return desc;
		2412	}
		2413
2931	// return a suitable string describing an objetc in enough detail to find it	2414	// return a suitable string describing an object in enough detail to find it
2932	const char *	2415	const char *
2933	object::debug_desc (char *info) const	2416	object::debug_desc (char *info) const
2934	{	2417	{
		2418	char flagdesc[512];
2935	char info2[256 * 3];	2419	char info2[256 * 4];
2936	char *p = info;	2420	char *p = info;
2937		2421
2938	p += snprintf (p, 256, "%d=\"%s%s%s\"",	2422	p += snprintf (p, 512, "{cnt:%d,uuid:%s,name:\"%s\"%s%s%s,flags:[%s],type:%d}",
2939	count,	2423	count,
		2424	uuid.c_str (),
2940	&name,	2425	&name,
2941	title ? " " : "",	2426	title ? ",title:\"" : "",
2942	title ? (const char *)title : "");	2427	title ? (const char *)title : "",
		2428	title ? "\"" : "",
		2429	flag_desc (flagdesc, 512), type);
2943		2430
2944	if (env)	2431	if (!flag[FLAG_REMOVED] && env)
2945	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));	2432	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));
2946		2433
2947	if (map)	2434	if (map)
2948	p += snprintf (p, 256, "(on %s@%d+%d)", map->path, x, y);	2435	p += snprintf (p, 256, "(on %s@%d+%d)", &map->path, x, y);
2949		2436
2950	return info;	2437	return info;
2951	}	2438	}
2952		2439
2953	const char *	2440	const char *
2954	object::debug_desc () const	2441	object::debug_desc () const
2955	{	2442	{
2956	static char info[256 * 3];	2443	static char info[3][256 * 4];
		2444	static int info_idx;
		2445
2957	return debug_desc (info);	2446	return debug_desc (info [++info_idx % 3]);
2958	}	2447	}
2959		2448
		2449	struct region *
		2450	object::region () const
		2451	{
		2452	return map ? map->region (x, y)
		2453	: region::default_region ();
		2454	}
		2455
		2456	const materialtype_t *
		2457	object::dominant_material () const
		2458	{
		2459	if (materialtype_t *mt = name_to_material (materialname))
		2460	return mt;
		2461
		2462	return name_to_material (shstr_unknown);
		2463	}
		2464
		2465	void
		2466	object::open_container (object *new_container)
		2467	{
		2468	if (container == new_container)
		2469	return;
		2470
		2471	object *old_container = container;
		2472
		2473	if (old_container)
		2474	{
		2475	if (INVOKE_OBJECT (CLOSE, old_container, ARG_OBJECT (this)))
		2476	return;
		2477
		2478	#if 0
		2479	// remove the "Close old_container" object.
		2480	if (object *closer = old_container->inv)
		2481	if (closer->type == CLOSE_CON)
		2482	closer->destroy ();
		2483	#endif
		2484
		2485	// make sure the container is available
		2486	esrv_send_item (this, old_container);
		2487
		2488	old_container->flag [FLAG_APPLIED] = false;
		2489	container = 0;
		2490
		2491	// client needs item update to make it work, client bug requires this to be separate
		2492	esrv_update_item (UPD_FLAGS, this, old_container);
		2493
		2494	new_draw_info_format (NDI_UNIQUE, 0, this, "You close %s.", query_name (old_container));
		2495	play_sound (sound_find ("chest_close"));
		2496	}
		2497
		2498	if (new_container)
		2499	{
		2500	if (INVOKE_OBJECT (OPEN, new_container, ARG_OBJECT (this)))
		2501	return;
		2502
		2503	// TODO: this does not seem to serve any purpose anymore?
		2504	#if 0
		2505	// insert the "Close Container" object.
		2506	if (archetype *closer = new_container->other_arch)
		2507	{
		2508	object *closer = arch_to_object (new_container->other_arch);
		2509	closer->flag [FLAG_NO_MAP_SAVE] = 1;
		2510	new_container->insert (closer);
		2511	}
		2512	#endif
		2513
		2514	new_draw_info_format (NDI_UNIQUE, 0, this, "You open %s.", query_name (new_container));
		2515
		2516	// make sure the container is available, client bug requires this to be separate
		2517	esrv_send_item (this, new_container);
		2518
		2519	new_container->flag [FLAG_APPLIED] = true;
		2520	container = new_container;
		2521
		2522	// client needs flag change
		2523	esrv_update_item (UPD_FLAGS, this, new_container);
		2524	esrv_send_inventory (this, new_container);
		2525	play_sound (sound_find ("chest_open"));
		2526	}
		2527	// else if (!old_container->env && contr && contr->ns)
		2528	// contr->ns->floorbox_reset ();
		2529	}
		2530
		2531	object *
		2532	object::force_find (const shstr name)
		2533	{
		2534	/* cycle through his inventory to look for the MARK we want to
		2535	* place
		2536	*/
		2537	for (object *tmp = inv; tmp; tmp = tmp->below)
		2538	if (tmp->type == FORCE && tmp->slaying == name)
		2539	return splay (tmp);
		2540
		2541	return 0;
		2542	}
		2543
		2544	void
		2545	object::force_add (const shstr name, int duration)
		2546	{
		2547	if (object *force = force_find (name))
		2548	force->destroy ();
		2549
		2550	object *force = get_archetype (FORCE_NAME);
		2551
		2552	force->slaying = name;
		2553	force->stats.food = 1;
		2554	force->speed_left = -1.f;
		2555
		2556	force->set_speed (duration ? 1.f / duration : 0.f);
		2557	force->flag [FLAG_IS_USED_UP] = true;
		2558	force->flag [FLAG_APPLIED] = true;
		2559
		2560	insert (force);
		2561	}
		2562
		2563	void
		2564	object::play_sound (faceidx sound)
		2565	{
		2566	if (!sound)
		2567	return;
		2568
		2569	if (flag [FLAG_REMOVED])
		2570	return;
		2571
		2572	if (env)
		2573	{
		2574	if (object *pl = in_player ())
		2575	pl->contr->play_sound (sound);
		2576	}
		2577	else
		2578	map->play_sound (sound, x, y);
		2579	}
		2580

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