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Comparing deliantra/server/common/object.C (file contents):
Revision 1.78 by root, Fri Dec 22 16:34:00 2006 UTC vs.
Revision 1.250 by root, Wed Jul 16 14:29:40 2008 UTC

1	/*	1	/*
2	CrossFire, A Multiplayer game for X-windows	2	* This file is part of Deliantra, the Roguelike Realtime MMORPG.
3		3	*
		4	* Copyright (©) 2005,2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
4	Copyright (C) 2001 Mark Wedel & Crossfire Development Team	5	* Copyright (©) 2001,2007 Mark Wedel & Crossfire Development Team
5	Copyright (C) 1992 Frank Tore Johansen	6	* Copyright (©) 1992,2007 Frank Tore Johansen
6		7	*
7	This program is free software; you can redistribute it and/or modify	8	* Deliantra is free software: you can redistribute it and/or modify
8	it under the terms of the GNU General Public License as published by	9	* it under the terms of the GNU General Public License as published by
9	the Free Software Foundation; either version 2 of the License, or	10	* the Free Software Foundation, either version 3 of the License, or
10	(at your option) any later version.	11	* (at your option) any later version.
11		12	*
12	This program is distributed in the hope that it will be useful,	13	* This program is distributed in the hope that it will be useful,
13	but WITHOUT ANY WARRANTY; without even the implied warranty of	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15	GNU General Public License for more details.	16	* GNU General Public License for more details.
16		17	*
17	You should have received a copy of the GNU General Public License	18	* You should have received a copy of the GNU General Public License
18	along with this program; if not, write to the Free Software	19	* along with this program. If not, see <http://www.gnu.org/licenses/>.
19	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.	20	*
20		21	* The authors can be reached via e-mail to <support@deliantra.net>
21	The authors can be reached via e-mail at <crossfire@schmorp.de>
22	*/	22	*/
23		23
24	/* Eneq(@csd.uu.se): Added weight-modifiers in environment of objects.
25	sub/add_weight will transcend the environment updating the carrying
26	variable. */
27	#include <global.h>	24	#include <global.h>
28	#include <stdio.h>	25	#include <stdio.h>
29	#include <sys/types.h>	26	#include <sys/types.h>
30	#include <sys/uio.h>	27	#include <sys/uio.h>
31	#include <object.h>	28	#include <object.h>
32	#include <funcpoint.h>	29	#include <sproto.h>
33	#include <loader.h>	30	#include <loader.h>
34		31
35	#include <bitset>	32	#include <bitset>
36		33
37	int nrofallocobjects = 0;	34	UUID UUID::cur;
38	static UUID uuid;	35	static uint64_t seq_next_save;
39	const uint64 UUID_SKIP = 1<<19;	36	static const uint64 UUID_GAP = 1<<19;
40		37
41	object *active_objects; /* List of active objects that need to be processed */	38	objectvec objects;
		39	activevec actives;
42		40
43	short freearr_x[SIZEOFFREE] = { 0, 0, 1, 1, 1, 0, -1, -1, -1, 0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2, -2, -2, -2, -1,	41	short freearr_x[SIZEOFFREE] = {
		42	0,
		43	0, 1, 1, 1, 0, -1, -1, -1,
		44	0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2, -2, -2, -2, -1,
44	0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3, -3, -3, -3, -3, -2, -1	45	0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3, -3, -3, -3, -3, -2, -1
45	};	46	};
46	short freearr_y[SIZEOFFREE] = { 0, -1, -1, 0, 1, 1, 1, 0, -1, -2, -2, -2, -1, 0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2,	47	short freearr_y[SIZEOFFREE] = {
		48	0,
		49	-1, -1, 0, 1, 1, 1, 0, -1,
		50	-2, -2, -2, -1, 0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2,
47	-3, -3, -3, -3, -2, -1, 0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3	51	-3, -3, -3, -3, -2, -1, 0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3
48	};	52	};
49	int maxfree[SIZEOFFREE] = { 0, 9, 10, 13, 14, 17, 18, 21, 22, 25, 26, 27, 30, 31, 32, 33, 36, 37, 39, 39, 42, 43, 44, 45,	53	int maxfree[SIZEOFFREE] = {
		54	0,
		55	9, 10, 13, 14, 17, 18, 21, 22,
		56	25, 26, 27, 30, 31, 32, 33, 36, 37, 39, 39, 42, 43, 44, 45, 48,
50	48, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49	57	49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49
51	};	58	};
52	int freedir[SIZEOFFREE] = {	59	int freedir[SIZEOFFREE] = {
53	0, 1, 2, 3, 4, 5, 6, 7, 8, 1, 2, 2, 2, 3, 4, 4, 4, 5, 6, 6, 6, 7, 8, 8, 8,	60	0,
		61	1, 2, 3, 4, 5, 6, 7, 8,
		62	1, 2, 2, 2, 3, 4, 4, 4, 5, 6, 6, 6, 7, 8, 8, 8,
54	1, 2, 2, 2, 2, 2, 3, 4, 4, 4, 4, 4, 5, 6, 6, 6, 6, 6, 7, 8, 8, 8, 8, 8	63	1, 2, 2, 2, 2, 2, 3, 4, 4, 4, 4, 4, 5, 6, 6, 6, 6, 6, 7, 8, 8, 8, 8, 8
55	};	64	};
56		65
57	static void	66	static void
58	write_uuid (void)	67	write_uuid (uval64 skip, bool sync)
59	{	68	{
60	char filename1[MAX_BUF], filename2[MAX_BUF];	69	CALL_BEGIN (2);
61		70	CALL_ARG_SV (newSVval64 (skip));
62	sprintf (filename1, "%s/uuid", settings.localdir);	71	CALL_ARG_SV (boolSV (sync));
63	sprintf (filename2, "%s/uuid~", settings.localdir);	72	CALL_CALL ("cf::write_uuid", G_DISCARD);
64		73	CALL_END;
65	FILE *fp;
66
67	if (!(fp = fopen (filename2, "w")))
68	{
69	LOG (llevError, "ERROR: cannot open %s for writing, unable to write UUID!\n", filename2);
70	return;
71	}
72
73	fprintf (fp, "<1,%llx>\n", (unsigned long long)uuid.seq + UUID_SKIP * 2);
74	fclose (fp);
75	rename (filename2, filename1);
76	}	74	}
77		75
78	static void	76	static void
79	read_uuid (void)	77	read_uuid (void)
80	{	78	{
81	char filename[MAX_BUF];	79	char filename[MAX_BUF];
82		80
83	sprintf (filename, "%s/uuid", settings.localdir);	81	sprintf (filename, "%s/uuid", settings.localdir);
		82
		83	seq_next_save = 0;
84		84
85	FILE *fp;	85	FILE *fp;
86		86
87	if (!(fp = fopen (filename, "r")))	87	if (!(fp = fopen (filename, "r")))
88	{	88	{
89	if (errno == ENOENT)	89	if (errno == ENOENT)
90	{	90	{
91	LOG (llevInfo, "RESET uid to 1\n");	91	LOG (llevInfo, "RESET uid to 1\n");
92	uuid.seq = 0;	92	UUID::cur.seq = 0;
93	write_uuid ();	93	write_uuid (UUID_GAP, true);
94	return;	94	return;
95	}	95	}
96		96
97	LOG (llevError, "FATAL: cannot open %s for reading!\n", filename);	97	LOG (llevError, "FATAL: cannot open %s for reading!\n", filename);
98	_exit (1);	98	_exit (1);
99	}	99	}
100		100
101	int version;	101	UUID::BUF buf;
102	unsigned long long uid;	102	buf[0] = 0;
103	if (2 != fscanf (fp, "<%d,%llx>\n", &version, &uid) || version != 1)	103	fgets (buf, sizeof (buf), fp);
		104
		105	if (!UUID::cur.parse (buf))
104	{	106	{
105	LOG (llevError, "FATAL: error reading uid from %s!\n", filename);	107	LOG (llevError, "FATAL: error reading uid from %s (%s)!\n", filename, buf);
106	_exit (1);	108	_exit (1);
107	}	109	}
108		110
109	uuid.seq = uid;	111	LOG (llevDebug, "read UUID: %s\n", UUID::cur.c_str ());
110	write_uuid ();	112
111	LOG (llevDebug, "read UID: %" PRId64 "\n", uid);	113	write_uuid (UUID_GAP, true);
112	fclose (fp);	114	fclose (fp);
113	}	115	}
114		116
115	UUID	117	UUID
116	gen_uuid ()	118	UUID::gen ()
117	{	119	{
118	UUID uid;	120	UUID uid;
119		121
120	uid.seq = ++uuid.seq;	122	uid.seq = ++cur.seq;
121		123
122	if (!(uuid.seq & (UUID_SKIP - 1)))	124	if (expect_false (cur.seq >= seq_next_save))
123	write_uuid ();	125	{
		126	seq_next_save = UUID::cur.seq + (UUID_GAP >> 1);
		127	write_uuid (UUID_GAP, false);
		128	}
		129
124		130
125	return uid;	131	return uid;
126	}	132	}
127		133
128	void	134	void
129	init_uuid ()	135	UUID::init ()
130	{	136	{
131	read_uuid ();	137	read_uuid ();
132	}	138	}
133		139
134	/* Returns TRUE if every key_values in wants has a partner with the same value in has. */	140	/* Returns TRUE if every key_values in wants has a partner with the same value in has. */
135	static int	141	static bool
136	compare_ob_value_lists_one (const object *wants, const object *has)	142	compare_ob_value_lists_one (const object *wants, const object *has)
137	{	143	{
138	key_value *wants_field;
139
140	/* n-squared behaviour (see get_ob_key_link()), but I'm hoping both	144	/* n-squared behaviour (see kv_get), but I'm hoping both
141	* objects with lists are rare, and lists stay short. If not, use a	145	* objects with lists are rare, and lists stay short. If not, use a
142	* different structure or at least keep the lists sorted...	146	* different structure or at least keep the lists sorted...
143	*/	147	*/
144		148
145	/* For each field in wants, */	149	/* For each field in wants, */
146	for (wants_field = wants->key_values; wants_field != 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	*
…		…
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_slow (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	184	if (ob1 == ob2
200	|| ob1->type != ob2->type	185	|| ob1->type != ob2->type
201	|| ob1->speed != ob2->speed	186	|| ob1->speed != ob2->speed
202	|| ob1->value != ob2->value	187	|| ob1->value != ob2->value
203	|| ob1->name != ob2->name)	188	|| ob1->name != ob2->name)
204	return 0;	189	return 0;
205		190
206	//TODO: this ain't working well, use nicer and correct overflow check	191	/* Do not merge objects if nrof would overflow. First part checks
207	/* Do not merge objects if nrof would overflow. We use 1UL<<31 since that	192	* for unsigned overflow (2c), second part checks whether the result
208	* value could not be stored in a sint32 (which unfortunately sometimes is	193	* would fit into a 32 bit signed int, which is often used to hold
209	* used to store nrof).	194	* nrof values.
210	*/	195	*/
211	if (ob1->nrof + ob2->nrof >= 1UL << 31)	196	if (~ob1->nrof < ob2->nrof || ob1->nrof + ob2->nrof > (1UL << 31))
212	return 0;	197	return 0;
213		198
214	/* If the objects have been identified, set the BEEN_APPLIED flag.	199	/* If the objects have been identified, set the BEEN_APPLIED flag.
215	* This is to the comparison of the flags below will be OK. We	200	* This is to the comparison of the flags below will be OK. We
216	* just can't ignore the been applied or identified flags, as they	201	* just can't ignore the been applied or identified flags, as they
217	* are not equal - just if it has been identified, the been_applied	202	* are not equal - just if it has been identified, the been_applied
218	* flags lose any meaning.	203	* flags lose any meaning.
219	*/	204	*/
220	if (QUERY_FLAG (ob1, FLAG_IDENTIFIED))	205	if (QUERY_FLAG (ob1, FLAG_IDENTIFIED))
221	SET_FLAG (ob1, FLAG_BEEN_APPLIED);	206	SET_FLAG (ob1, FLAG_BEEN_APPLIED);
222		207
223	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))	208	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))
224	SET_FLAG (ob2, FLAG_BEEN_APPLIED);	209	SET_FLAG (ob2, FLAG_BEEN_APPLIED);
225		210
226	if ((ob1->flags ^ ob2->flags).reset (FLAG_INV_LOCKED).reset (FLAG_CLIENT_SENT).any ()	211	if (ob1->arch->archname != ob2->arch->archname
227	|| ob1->arch != ob2->arch
228	|| ob1->name != ob2->name	212	|| ob1->name != ob2->name
229	|| ob1->title != ob2->title	213	|| ob1->title != ob2->title
230	|| ob1->msg != ob2->msg	214	|| ob1->msg != ob2->msg
231	|| ob1->weight != ob2->weight	215	|| ob1->weight != ob2->weight
232	|| memcmp (&ob1->resist, &ob2->resist, sizeof (ob1->resist))
233	|| memcmp (&ob1->stats , &ob2->stats , sizeof (ob1->stats) )
234	|| ob1->attacktype != ob2->attacktype	216	|| ob1->attacktype != ob2->attacktype
235	|| ob1->magic != ob2->magic	217	|| ob1->magic != ob2->magic
236	|| ob1->slaying != ob2->slaying	218	|| ob1->slaying != ob2->slaying
237	|| ob1->skill != ob2->skill	219	|| ob1->skill != ob2->skill
238	|| ob1->value != ob2->value	220	|| ob1->value != ob2->value
239	|| ob1->animation_id != ob2->animation_id	221	|| ob1->animation_id != ob2->animation_id
		222	|| (ob1->face != ob2->face && !ob1->animation_id) // face and animation are dependent on each other
240	|| ob1->client_type != ob2->client_type	223	|| ob1->client_type != ob2->client_type
241	|| ob1->materialname != ob2->materialname	224	|| ob1->materialname != ob2->materialname
242	|| ob1->lore != ob2->lore	225	|| ob1->lore != ob2->lore
243	|| ob1->subtype != ob2->subtype	226	|| ob1->subtype != ob2->subtype
244	|| ob1->move_type != ob2->move_type	227	|| ob1->move_type != ob2->move_type
245	|| ob1->move_block != ob2->move_block	228	|| ob1->move_block != ob2->move_block
246	|| ob1->move_allow != ob2->move_allow	229	|| ob1->move_allow != ob2->move_allow
247	|| ob1->move_on != ob2->move_on	230	|| ob1->move_on != ob2->move_on
248	|| ob1->move_off != ob2->move_off	231	|| ob1->move_off != ob2->move_off
249	|| ob1->move_slow != ob2->move_slow	232	|| ob1->move_slow != ob2->move_slow
250	|| ob1->move_slow_penalty != ob2->move_slow_penalty)	233	|| ob1->move_slow_penalty != ob2->move_slow_penalty
		234	|| memcmp (&ob1->resist, &ob2->resist, sizeof (ob1->resist))
		235	|| memcmp (&ob1->stats , &ob2->stats , sizeof (ob1->stats)))
251	return 0;	236	return 0;
252		237
		238	if ((ob1->flag ^ ob2->flag)
		239	.reset (FLAG_INV_LOCKED)
		240	.reset (FLAG_CLIENT_SENT)
		241	.reset (FLAG_REMOVED)
		242	.any ())
		243	return 0;
		244
253	/* This is really a spellbook check - really, we should	245	/* This is really a spellbook check - we should in general
254	* check all objects in the inventory.	246	* not merge objects with real inventories, as splitting them
		247	* is hard.
255	*/	248	*/
256	if (ob1->inv || ob2->inv)	249	if (ob1->inv || ob2->inv)
257	{	250	{
258	/* if one object has inventory but the other doesn't, not equiv */	251	if (!(ob1->inv && ob2->inv))
259	if ((ob1->inv && !ob2->inv) || (ob2->inv && !ob1->inv))	252	return 0; /* inventories differ in length */
260	return 0;
261		253
262	/* Now check to see if the two inventory objects could merge */	254	if (ob1->inv->below || ob2->inv->below)
		255	return 0; /* more than one object in inv */
		256
263	if (!object::can_merge (ob1->inv, ob2->inv))	257	if (!object::can_merge (ob1->inv, ob2->inv))
264	return 0;	258	return 0; /* inventory objects differ */
265		259
266	/* inventory ok - still need to check rest of this object to see	260	/* inventory ok - still need to check rest of this object to see
267	* if it is valid.	261	* if it is valid.
268	*/	262	*/
269	}	263	}
…		…
277		271
278	/* Note sure why the following is the case - either the object has to	272	/* Note sure why the following is the case - either the object has to
279	* be animated or have a very low speed. Is this an attempted monster	273	* be animated or have a very low speed. Is this an attempted monster
280	* check?	274	* check?
281	*/	275	*/
282	if (!QUERY_FLAG (ob1, FLAG_ANIMATE) && FABS ((ob1)->speed) > MIN_ACTIVE_SPEED)	276	if (!QUERY_FLAG (ob1, FLAG_ANIMATE) && ob1->has_active_speed ())
283	return 0;	277	return 0;
284		278
285	switch (ob1->type)	279	switch (ob1->type)
286	{	280	{
287	case SCROLL:	281	case SCROLL:
288	if (ob1->level != ob2->level)	282	if (ob1->level != ob2->level)
289	return 0;	283	return 0;
290	break;	284	break;
291	}	285	}
292		286
293	if (ob1->key_values != NULL || ob2->key_values != NULL)	287	if (ob1->key_values || ob2->key_values)
294	{	288	{
295	/* At least one of these has key_values. */	289	/* At least one of these has key_values. */
296	if ((ob1->key_values == NULL) != (ob2->key_values == NULL))	290	if ((!ob1->key_values) != (!ob2->key_values))
297	/* One has fields, but the other one doesn't. */	291	return 0; /* One has fields, but the other one doesn't. */
		292
		293	if (!compare_ob_value_lists (ob1, ob2))
298	return 0;	294	return 0;
299	else if (!compare_ob_value_lists (ob1, ob2))
300	return 0;
301	}	295	}
302		296
303	//TODO: generate an event or call into perl for additional checks
304	if (ob1->self || ob2->self)	297	if (ob1->self || ob2->self)
305	{	298	{
306	ob1->optimise ();	299	ob1->optimise ();
307	ob2->optimise ();	300	ob2->optimise ();
308		301
309	if (ob1->self || ob2->self)	302	if (ob1->self || ob2->self)
		303	{
		304	int k1 = ob1->self ? HvTOTALKEYS (ob1->self) : 0;
		305	int k2 = ob2->self ? HvTOTALKEYS (ob2->self) : 0;
		306
		307	if (k1 != k2)
310	return 0;	308	return 0;
		309
		310	if (k1 == 0)
		311	return 1;
		312
		313	if (!cfperl_can_merge (ob1, ob2))
		314	return 0;
		315	}
311	}	316	}
312		317
313	/* Everything passes, must be OK. */	318	/* Everything passes, must be OK. */
314	return 1;	319	return 1;
315	}	320	}
316		321
		322	// find player who can see this object
		323	object *
		324	object::visible_to () const
		325	{
		326	if (client_visible () && !flag [FLAG_REMOVED])
		327	{
		328	// see if we are in a container of sorts
		329	if (env)
		330	{
		331	// the player inventory itself is always visible
		332	if (env->type == PLAYER)
		333	return env;
		334
		335	// else a player could have our env open
		336	object *envest = env->outer_env ();
		337
		338	// the player itself is always on a map, so we will find him here
		339	// even if our inv is in a player.
		340	if (envest->is_on_map ())
		341	if (object *pl = envest->ms ().player ())
		342	if (pl->container == env)
		343	return pl;
		344	}
		345	else
		346	{
		347	// maybe there is a player standing on the same mapspace
		348	// this will catch the case where "this" is a player
		349	if (object *pl = ms ().player ())
		350	if ((!pl->container && pl->contr->ns && !pl->contr->ns->update_look)
		351	|| this == pl->container)
		352	return pl;
		353	}
		354	}
		355
		356	return 0;
		357	}
		358
		359	// adjust weight per container type ("of holding")
		360	static sint32
		361	weight_adjust_for (object *op, sint32 weight)
		362	{
		363	return op->type == CONTAINER
		364	? lerp (weight, 0, 100, 0, 100 - op->stats.Str)
		365	: weight;
		366	}
		367
317	/*	368	/*
		369	* adjust_weight(object, weight) adds the specified weight to an object,
		370	* and also updates how much the environment(s) is/are carrying.
		371	*/
		372	static void
		373	adjust_weight (object *op, sint32 weight)
		374	{
		375	while (op)
		376	{
		377	// adjust by actual difference to account for rounding errors
		378	// i.e. (w2 - w1) / f != w2 / f - w1 / f and the latter is correct
		379	weight = weight_adjust_for (op, op->carrying)
		380	- weight_adjust_for (op, op->carrying - weight);
		381
		382	if (!weight)
		383	return;
		384
		385	op->carrying += weight;
		386
		387	if (object *pl = op->visible_to ())
		388	if (pl != op) // player is handled lazily
		389	esrv_update_item (UPD_WEIGHT, pl, op);
		390
		391	op = op->env;
		392	}
		393	}
		394
		395	/*
318	* sum_weight() is a recursive function which calculates the weight	396	* this is a recursive function which calculates the weight
319	* an object is carrying. It goes through in figures out how much	397	* an object is carrying. It goes through op and figures out how much
320	* containers are carrying, and sums it up.	398	* containers are carrying, and sums it up.
321	*/	399	*/
322	long	400	void
323	sum_weight (object *op)	401	object::update_weight ()
324	{	402	{
325	long sum;	403	sint32 sum = 0;
326	object *inv;
327		404
328	for (sum = 0, inv = op->inv; inv != NULL; inv = inv->below)	405	for (object *op = inv; op; op = op->below)
329	{	406	{
330	if (inv->inv)	407	if (op->inv)
331	sum_weight (inv);	408	op->update_weight ();
332	sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1);	409
		410	sum += op->total_weight ();
		411	}
		412
		413	sum = weight_adjust_for (this, sum);
		414
		415	if (sum != carrying)
333	}	416	{
334
335	if (op->type == CONTAINER && op->stats.Str)
336	sum = (sum * (100 - op->stats.Str)) / 100;
337
338	if (op->carrying != sum)
339	op->carrying = sum;	417	carrying = sum;
340		418
341	return sum;	419	if (object *pl = visible_to ())
		420	if (pl != this) // player is handled lazily
		421	esrv_update_item (UPD_WEIGHT, pl, this);
		422	}
342	}	423	}
343		424
344	/**	425	/*
345	* Return the outermost environment object for a given object.	426	* Used by: Server DM commands: dumpbelow, dump. Some error messages.
346	*/	427	*/
347
348	object *
349	object_get_env_recursive (object *op)
350	{
351	while (op->env != NULL)
352	op = op->env;
353	return op;
354	}
355
356	/*
357	* Used by: Crossedit: dump. Server DM commands: dumpbelow, dump.
358	* Some error messages.
359	* The result of the dump is stored in the static global errmsg array.
360	*/
361
362	char *	428	char *
363	dump_object (object *op)	429	dump_object (object *op)
364	{	430	{
365	if (!op)	431	if (!op)
366	return strdup ("[NULLOBJ]");	432	return strdup ("[NULLOBJ]");
367		433
368	object_freezer freezer;	434	object_freezer freezer;
369	save_object (freezer, op, 3);	435	op->write (freezer);
370	return freezer.as_string ();	436	return freezer.as_string ();
371	}	437	}
372		438
373	/*	439	/*
374	* get_nearest_part(multi-object, object 2) returns the part of the	440	* get_nearest_part(multi-object, object 2) returns the part of the
375	* multi-object 1 which is closest to the second object.	441	* multi-object 1 which is closest to the second object.
376	* If it's not a multi-object, it is returned.	442	* If it's not a multi-object, it is returned.
377	*/	443	*/
378
379	object *	444	object *
380	get_nearest_part (object *op, const object *pl)	445	get_nearest_part (object *op, const object *pl)
381	{	446	{
382	object *tmp, *closest;	447	object *tmp, *closest;
383	int last_dist, i;	448	int last_dist, i;
384		449
385	if (op->more == NULL)	450	if (!op->more)
386	return op;	451	return op;
		452
387	for (last_dist = distance (op, pl), closest = op, tmp = op->more; tmp != NULL; tmp = tmp->more)	453	for (last_dist = distance (op, pl), closest = op, tmp = op->more;
		454	tmp;
		455	tmp = tmp->more)
388	if ((i = distance (tmp, pl)) < last_dist)	456	if ((i = distance (tmp, pl)) < last_dist)
389	closest = tmp, last_dist = i;	457	closest = tmp, last_dist = i;
		458
390	return closest;	459	return closest;
391	}	460	}
392		461
393	/*	462	/*
394	* Returns the object which has the count-variable equal to the argument.	463	* Returns the object which has the count-variable equal to the argument.
		464	* VERRRY slow.
395	*/	465	*/
396
397	object *	466	object *
398	find_object (tag_t i)	467	find_object (tag_t i)
399	{	468	{
400	for (object *op = object::first; op; op = op->next)	469	for_all_objects (op)
401	if (op->count == i)	470	if (op->count == i)
402	return op;	471	return op;
403		472
404	return 0;	473	return 0;
405	}	474	}
406		475
407	/*	476	/*
408	* Returns the first object which has a name equal to the argument.	477	* Returns the first object which has a name equal to the argument.
409	* Used only by the patch command, but not all that useful.	478	* Used only by the patch command, but not all that useful.
410	* Enables features like "patch <name-of-other-player> food 999"	479	* Enables features like "patch <name-of-other-player> food 999"
411	*/	480	*/
412
413	object *	481	object *
414	find_object_name (const char *str)	482	find_object_name (const char *str)
415	{	483	{
416	shstr_cmp str_ (str);	484	shstr_cmp str_ (str);
417	object *op;
418		485
419	for (op = object::first; op != NULL; op = op->next)	486	if (str_)
		487	for_all_objects (op)
420	if (op->name == str_)	488	if (op->name == str_)
421	break;	489	return op;
422		490
423	return op;	491	return 0;
424	}
425
426	void
427	free_all_object_data ()
428	{
429	LOG (llevDebug, "%d allocated objects\n", nrofallocobjects);
430	}	492	}
431		493
432	/*	494	/*
433	* Sets the owner and sets the skill and exp pointers to owner's current	495	* Sets the owner and sets the skill and exp pointers to owner's current
434	* skill and experience objects.	496	* skill and experience objects.
		497	* ACTUALLY NO! investigate! TODO
435	*/	498	*/
436	void	499	void
437	object::set_owner (object *owner)	500	object::set_owner (object *owner)
438	{	501	{
		502	// allow objects which own objects
439	if (!owner)	503	if (owner)
440	return;
441
442	/* next line added to allow objects which own objects */
443	/* Add a check for ownercounts in here, as I got into an endless loop
444	* with the fireball owning a poison cloud which then owned the
445	* fireball. I believe that was caused by one of the objects getting
446	* freed and then another object replacing it. Since the ownercounts
447	* didn't match, this check is valid and I believe that cause is valid.
448	*/
449	while (owner->owner)	504	while (owner->owner)
450	owner = owner->owner;	505	owner = owner->owner;
		506
		507	if (flag [FLAG_FREED])
		508	{
		509	LOG (llevError | logBacktrace, "tried to set owner of %s to %s\n", debug_desc (), owner->debug_desc ());
		510	return;
		511	}
451		512
452	this->owner = owner;	513	this->owner = owner;
		514	}
		515
		516	int
		517	object::slottype () const
		518	{
		519	if (type == SKILL)
		520	{
		521	if (IS_COMBAT_SKILL (subtype)) return slot_combat;
		522	if (IS_RANGED_SKILL (subtype)) return slot_ranged;
		523	}
		524	else
		525	{
		526	if (slot [body_combat].info) return slot_combat;
		527	if (slot [body_range ].info) return slot_ranged;
		528	}
		529
		530	return slot_none;
		531	}
		532
		533	bool
		534	object::change_weapon (object *ob)
		535	{
		536	if (current_weapon == ob)
		537	return true;
		538
		539	if (chosen_skill)
		540	chosen_skill->flag [FLAG_APPLIED] = false;
		541
		542	current_weapon = ob;
		543	chosen_skill = !ob || ob->type == SKILL ? ob : find_skill_by_name (this, ob->skill);
		544
		545	if (chosen_skill)
		546	chosen_skill->flag [FLAG_APPLIED] = true;
		547
		548	update_stats ();
		549
		550	if (ob)
		551	{
		552	// now check wether any body locations became invalid, in which case
		553	// we cannot apply the weapon at the moment.
		554	for (int i = 0; i < NUM_BODY_LOCATIONS; ++i)
		555	if (slot[i].used < 0)
		556	{
		557	current_weapon = chosen_skill = 0;
		558	update_stats ();
		559
		560	new_draw_info_format (NDI_UNIQUE, 0, this,
		561	"You try to balance all your items at once, "
		562	"but the %s is just too much for your body. "
		563	"[You need to unapply some items first.]", &ob->name);
		564	return false;
		565	}
		566
		567	//new_draw_info_format (NDI_UNIQUE, 0, this, "You switch to your %s.", &ob->name);
		568	}
		569	else
		570	;//new_draw_info_format (NDI_UNIQUE, 0, this, "You unwield your weapons.");
		571
		572	if (ob && !ob->flag [FLAG_APPLIED] && ob->type != SPELL)
		573	{
		574	LOG (llevError | logBacktrace, "%s changed to unapplied weapon %s",
		575	&name, ob->debug_desc ());
		576	return false;
		577	}
		578
		579	return true;
453	}	580	}
454		581
455	/* Zero the key_values on op, decrementing the shared-string	582	/* Zero the key_values on op, decrementing the shared-string
456	* refcounts and freeing the links.	583	* refcounts and freeing the links.
457	*/	584	*/
458	static void	585	static void
459	free_key_values (object *op)	586	free_key_values (object *op)
460	{	587	{
461	for (key_value *i = op->key_values; i != 0;)	588	for (key_value *i = op->key_values; i; )
462	{	589	{
463	key_value *next = i->next;	590	key_value *next = i->next;
464	delete i;	591	delete i;
465		592
466	i = next;	593	i = next;
…		…
478	* will point at garbage.	605	* will point at garbage.
479	*/	606	*/
480	void	607	void
481	object::copy_to (object *dst)	608	object::copy_to (object *dst)
482	{	609	{
483	bool is_freed = QUERY_FLAG (dst, FLAG_FREED);	610	dst->remove ();
484	bool is_removed = QUERY_FLAG (dst, FLAG_REMOVED);
485
486	*(object_copy *)dst = *this;	611	*(object_copy *)dst = *this;
487	*(object_pod *)dst = *this;	612	dst->flag [FLAG_REMOVED] = true;
488
489	if (self || cb)
490	INVOKE_OBJECT (CLONE, this, ARG_OBJECT (dst));
491
492	if (is_freed)
493	SET_FLAG (dst, FLAG_FREED);
494
495	if (is_removed)
496	SET_FLAG (dst, FLAG_REMOVED);
497
498	if (speed < 0)
499	dst->speed_left = speed_left - RANDOM () % 200 / 100.0;
500		613
501	/* Copy over key_values, if any. */	614	/* Copy over key_values, if any. */
502	if (key_values)	615	if (key_values)
503	{	616	{
504	key_value *tail = 0;	617	key_value *tail = 0;
505	key_value *i;
506
507	dst->key_values = 0;	618	dst->key_values = 0;
508		619
509	for (i = key_values; i; i = i->next)	620	for (key_value *i = key_values; i; i = i->next)
510	{	621	{
511	key_value *new_link = new key_value;	622	key_value *new_link = new key_value;
512		623
513	new_link->next = 0;	624	new_link->next = 0;
514	new_link->key = i->key;	625	new_link->key = i->key;
515	new_link->value = i->value;	626	new_link->value = i->value;
516		627
517	/* Try and be clever here, too. */	628	/* Try and be clever here, too. */
518	if (!dst->key_values)	629	if (!dst->key_values)
519	{	630	{
…		…
526	tail = new_link;	637	tail = new_link;
527	}	638	}
528	}	639	}
529	}	640	}
530		641
531	update_ob_speed (dst);	642	if (speed < 0)
		643	dst->speed_left -= rndm ();
		644
		645	dst->set_speed (dst->speed);
		646	}
		647
		648	void
		649	object::instantiate ()
		650	{
		651	if (!uuid.seq) // HACK
		652	uuid = UUID::gen ();
		653
		654	speed_left = -0.1f;
		655	/* copy the body_info to the body_used - this is only really
		656	* need for monsters, but doesn't hurt to do it for everything.
		657	* by doing so, when a monster is created, it has good starting
		658	* values for the body_used info, so when items are created
		659	* for it, they can be properly equipped.
		660	*/
		661	for (int i = NUM_BODY_LOCATIONS; i--; )
		662	slot[i].used = slot[i].info;
		663
		664	attachable::instantiate ();
532	}	665	}
533		666
534	object *	667	object *
535	object::clone ()	668	object::clone ()
536	{	669	{
537	object *neu = create ();	670	object *neu = create ();
538	copy_to (neu);	671	copy_to (neu);
		672	neu->map = map; // not copied by copy_to
539	return neu;	673	return neu;
540	}	674	}
541		675
542	/*	676	/*
543	* If an object with the IS_TURNABLE() flag needs to be turned due	677	* If an object with the IS_TURNABLE() flag needs to be turned due
544	* to the closest player being on the other side, this function can	678	* to the closest player being on the other side, this function can
545	* be called to update the face variable, _and_ how it looks on the map.	679	* be called to update the face variable, _and_ how it looks on the map.
546	*/	680	*/
547
548	void	681	void
549	update_turn_face (object *op)	682	update_turn_face (object *op)
550	{	683	{
551	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || op->arch == NULL)	684	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || !op->arch)
552	return;	685	return;
		686
553	SET_ANIMATION (op, op->direction);	687	SET_ANIMATION (op, op->direction);
554	update_object (op, UP_OBJ_FACE);	688	update_object (op, UP_OBJ_FACE);
555	}	689	}
556		690
557	/*	691	/*
558	* Updates the speed of an object. If the speed changes from 0 to another	692	* Updates the speed of an object. If the speed changes from 0 to another
559	* value, or vice versa, then add/remove the object from the active list.	693	* value, or vice versa, then add/remove the object from the active list.
560	* This function needs to be called whenever the speed of an object changes.	694	* This function needs to be called whenever the speed of an object changes.
561	*/	695	*/
562	void	696	void
563	update_ob_speed (object *op)	697	object::set_speed (float speed)
564	{	698	{
565	extern int arch_init;	699	if (flag [FLAG_FREED] && speed)
566
567	/* No reason putting the archetypes objects on the speed list,
568	* since they never really need to be updated.
569	*/
570
571	if (QUERY_FLAG (op, FLAG_FREED) && op->speed)
572	{	700	{
573	LOG (llevError, "Object %s is freed but has speed.\n", &op->name);	701	LOG (llevError, "Object %s is freed but has speed.\n", &name);
574	#ifdef MANY_CORES
575	abort ();
576	#else
577	op->speed = 0;	702	speed = 0;
578	#endif
579	}
580
581	if (arch_init)
582	return;
583
584	if (FABS (op->speed) > MIN_ACTIVE_SPEED)
585	{	703	}
586	/* If already on active list, don't do anything */
587	if (op->active_next || op->active_prev || op == active_objects)
588	return;
589		704
590	/* process_events() expects us to insert the object at the beginning	705	this->speed = speed;
591	* of the list. */
592	op->active_next = active_objects;
593		706
594	if (op->active_next != NULL)	707	if (has_active_speed ())
595	op->active_next->active_prev = op;	708	activate ();
596
597	active_objects = op;
598	}
599	else	709	else
600	{	710	deactivate ();
601	/* If not on the active list, nothing needs to be done */
602	if (!op->active_next && !op->active_prev && op != active_objects)
603	return;
604
605	if (op->active_prev == NULL)
606	{
607	active_objects = op->active_next;
608
609	if (op->active_next != NULL)
610	op->active_next->active_prev = NULL;
611	}
612	else
613	{
614	op->active_prev->active_next = op->active_next;
615
616	if (op->active_next)
617	op->active_next->active_prev = op->active_prev;
618	}
619
620	op->active_next = NULL;
621	op->active_prev = NULL;
622	}
623	}
624
625	/* This function removes object 'op' from the list of active
626	* objects.
627	* This should only be used for style maps or other such
628	* reference maps where you don't want an object that isn't
629	* in play chewing up cpu time getting processed.
630	* The reverse of this is to call update_ob_speed, which
631	* will do the right thing based on the speed of the object.
632	*/
633	void
634	remove_from_active_list (object *op)
635	{
636	/* If not on the active list, nothing needs to be done */
637	if (!op->active_next && !op->active_prev && op != active_objects)
638	return;
639
640	if (op->active_prev == NULL)
641	{
642	active_objects = op->active_next;
643	if (op->active_next != NULL)
644	op->active_next->active_prev = NULL;
645	}
646	else
647	{
648	op->active_prev->active_next = op->active_next;
649	if (op->active_next)
650	op->active_next->active_prev = op->active_prev;
651	}
652	op->active_next = NULL;
653	op->active_prev = NULL;
654	}	711	}
655		712
656	/*	713	/*
657	* update_object() updates the the map.	714	* update_object() updates the the map.
658	* It takes into account invisible objects (and represent squares covered	715	* It takes into account invisible objects (and represent squares covered
…		…
671	* UP_OBJ_FACE: only the objects face has changed.	728	* UP_OBJ_FACE: only the objects face has changed.
672	*/	729	*/
673	void	730	void
674	update_object (object *op, int action)	731	update_object (object *op, int action)
675	{	732	{
676	MoveType move_on, move_off, move_block, move_slow;	733	if (!op)
677
678	if (op == NULL)
679	{	734	{
680	/* this should never happen */	735	/* this should never happen */
681	LOG (llevDebug, "update_object() called for NULL object.\n");	736	LOG (llevError | logBacktrace, "update_object() called for NULL object.\n");
682	return;	737	return;
683	}	738	}
684		739
685	if (op->env)	740	if (!op->is_on_map ())
686	{	741	{
687	/* Animation is currently handled by client, so nothing	742	/* Animation is currently handled by client, so nothing
688	* to do in this case.	743	* to do in this case.
689	*/	744	*/
690	return;	745	return;
691	}	746	}
692		747
693	/* If the map is saving, don't do anything as everything is
694	* going to get freed anyways.
695	*/
696	if (!op->map || op->map->in_memory == MAP_SAVING)
697	return;
698
699	/* make sure the object is within map boundaries */	748	/* make sure the object is within map boundaries */
700	if (op->x < 0 || op->x >= MAP_WIDTH (op->map) || op->y < 0 || op->y >= MAP_HEIGHT (op->map))	749	if (op->x < 0 || op->x >= op->map->width || op->y < 0 || op->y >= op->map->height)
701	{	750	{
702	LOG (llevError, "update_object() called for object out of map!\n");	751	LOG (llevError, "update_object() called for object out of map!\n");
703	#ifdef MANY_CORES	752	#ifdef MANY_CORES
704	abort ();	753	abort ();
705	#endif	754	#endif
706	return;	755	return;
707	}	756	}
708		757
709	mapspace &m = op->ms ();	758	mapspace &m = op->ms ();
710		759
711	if (m.flags_ & P_NEED_UPDATE)	760	if (!(m.flags_ & P_UPTODATE))
712	/* nop */;	761	/* nop */;
713	else if (action == UP_OBJ_INSERT)	762	else if (action == UP_OBJ_INSERT)
714	{	763	{
715	// this is likely overkill, TODO: revisit (schmorp)	764	// this is likely overkill, TODO: revisit (schmorp)
716	if ((QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(m.flags_ & P_BLOCKSVIEW))	765	if ((QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(m.flags_ & P_BLOCKSVIEW))
…		…
725	/* This isn't perfect, but I don't expect a lot of objects to	774	/* This isn't perfect, but I don't expect a lot of objects to
726	* to have move_allow right now.	775	* to have move_allow right now.
727	*/	776	*/
728	|| ((m.move_block | op->move_block) & ~op->move_allow) != m.move_block	777	|| ((m.move_block | op->move_block) & ~op->move_allow) != m.move_block
729	|| 1) // the above is not strong enough a test to skip updating. los maybe? TODO (Schmorp)	778	|| 1) // the above is not strong enough a test to skip updating. los maybe? TODO (Schmorp)
730	m.flags_ = P_NEED_UPDATE;	779	m.flags_ = 0;
731	}	780	}
732	/* if the object is being removed, we can't make intelligent	781	/* if the object is being removed, we can't make intelligent
733	* decisions, because remove_ob can't really pass the object	782	* decisions, because remove_ob can't really pass the object
734	* that is being removed.	783	* that is being removed.
735	*/	784	*/
736	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)	785	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)
737	m.flags_ = P_NEED_UPDATE;	786	m.flags_ = 0;
738	else if (action == UP_OBJ_FACE)	787	else if (action == UP_OBJ_FACE)
739	/* Nothing to do for that case */ ;	788	/* Nothing to do for that case */ ;
740	else	789	else
741	LOG (llevError, "update_object called with invalid action: %d\n", action);	790	LOG (llevError, "update_object called with invalid action: %d\n", action);
742		791
743	if (op->more)	792	if (op->more)
744	update_object (op->more, action);	793	update_object (op->more, action);
745	}	794	}
746		795
747	object::vector object::mortals;
748	object::vector object::objects; // not yet used
749	object *object::first;
750
751	void object::free_mortals ()
752	{
753	for (AUTODECL (i, mortals.begin ()); i != mortals.end ();)
754	if ((*i)->refcnt)
755	++i; // further delay freeing
756	else
757	{
758	delete *i;
759	mortals.erase (i);
760	}
761	}
762
763	object::object ()	796	object::object ()
764	{	797	{
765	SET_FLAG (this, FLAG_REMOVED);	798	SET_FLAG (this, FLAG_REMOVED);
766		799
767	expmul = 1.0;	800	expmul = 1.0;
768	face = blank_face;	801	face = blank_face;
769	}	802	}
770		803
771	object::~object ()	804	object::~object ()
772	{	805	{
		806	unlink ();
		807
773	free_key_values (this);	808	free_key_values (this);
774	}	809	}
775		810
		811	static int object_count;
		812
776	void object::link ()	813	void object::link ()
777	{	814	{
		815	assert (!index);//D
		816	uuid = UUID::gen ();
778	count = ++ob_count;	817	count = ++object_count;
779	uuid = gen_uuid ();
780		818
781	prev = 0;	819	refcnt_inc ();
782	next = object::first;	820	objects.insert (this);
783
784	if (object::first)
785	object::first->prev = this;
786
787	object::first = this;
788	}	821	}
789		822
790	void object::unlink ()	823	void object::unlink ()
791	{	824	{
792	if (this == object::first)	825	if (!index)
793	object::first = next;	826	return;
794		827
795	/* Remove this object from the list of used objects */	828	objects.erase (this);
796	if (prev) prev->next = next;	829	refcnt_dec ();
797	if (next) next->prev = prev;	830	}
798		831
799	prev = 0;	832	void
800	next = 0;	833	object::activate ()
		834	{
		835	/* If already on active list, don't do anything */
		836	if (active)
		837	return;
		838
		839	if (has_active_speed ())
		840	actives.insert (this);
		841	}
		842
		843	void
		844	object::activate_recursive ()
		845	{
		846	activate ();
		847
		848	for (object *op = inv; op; op = op->below)
		849	op->activate_recursive ();
		850	}
		851
		852	/* This function removes object 'op' from the list of active
		853	* objects.
		854	* This should only be used for style maps or other such
		855	* reference maps where you don't want an object that isn't
		856	* in play chewing up cpu time getting processed.
		857	* The reverse of this is to call update_ob_speed, which
		858	* will do the right thing based on the speed of the object.
		859	*/
		860	void
		861	object::deactivate ()
		862	{
		863	/* If not on the active list, nothing needs to be done */
		864	if (!active)
		865	return;
		866
		867	actives.erase (this);
		868	}
		869
		870	void
		871	object::deactivate_recursive ()
		872	{
		873	for (object *op = inv; op; op = op->below)
		874	op->deactivate_recursive ();
		875
		876	deactivate ();
		877	}
		878
		879	void
		880	object::set_flag_inv (int flag, int value)
		881	{
		882	for (object *op = inv; op; op = op->below)
		883	{
		884	op->flag [flag] = value;
		885	op->set_flag_inv (flag, value);
		886	}
		887	}
		888
		889	/*
		890	* Remove and free all objects in the inventory of the given object.
		891	* object.c ?
		892	*/
		893	void
		894	object::destroy_inv (bool drop_to_ground)
		895	{
		896	// need to check first, because the checks below might segfault
		897	// as we might be on an invalid mapspace and crossfire code
		898	// is too buggy to ensure that the inventory is empty.
		899	// corollary: if you create arrows etc. with stuff in its inventory,
		900	// cf will crash below with off-map x and y
		901	if (!inv)
		902	return;
		903
		904	/* Only if the space blocks everything do we not process -
		905	* if some form of movement is allowed, let objects
		906	* drop on that space.
		907	*/
		908	if (!drop_to_ground
		909	|| !map
		910	|| map->in_memory != MAP_ACTIVE
		911	|| map->no_drop
		912	|| ms ().move_block == MOVE_ALL)
		913	{
		914	while (inv)
		915	inv->destroy (true);
		916	}
		917	else
		918	{ /* Put objects in inventory onto this space */
		919	while (inv)
		920	{
		921	object *op = inv;
		922
		923	if (op->flag [FLAG_STARTEQUIP]
		924	|| op->flag [FLAG_NO_DROP]
		925	|| op->type == RUNE
		926	|| op->type == TRAP
		927	|| op->flag [FLAG_IS_A_TEMPLATE]
		928	|| op->flag [FLAG_DESTROY_ON_DEATH])
		929	op->destroy (true);
		930	else
		931	map->insert (op, x, y);
		932	}
		933	}
801	}	934	}
802		935
803	object *object::create ()	936	object *object::create ()
804	{	937	{
805	object *op = new object;	938	object *op = new object;
806	op->link ();	939	op->link ();
807	return op;	940	return op;
808	}	941	}
809		942
810	/*	943	static struct freed_map : maptile
811	* free_object() frees everything allocated by an object, removes	944	{
812	* it from the list of used objects, and puts it on the list of	945	freed_map ()
813	* free objects. The IS_FREED() flag is set in the object.	946	{
814	* The object must have been removed by remove_ob() first for	947	path = "<freed objects map>";
815	* this function to succeed.	948	name = "/internal/freed_objects_map";
816	*	949	width = 3;
817	* If destroy_inventory is set, free inventory as well. Else drop items in	950	height = 3;
818	* inventory to the ground.	951	no_drop = 1;
819	*/	952	no_reset = 1;
		953
		954	alloc ();
		955	in_memory = MAP_ACTIVE;
		956	}
		957
		958	~freed_map ()
		959	{
		960	destroy ();
		961	}
		962	} freed_map; // freed objects are moved here to avoid crashes
		963
		964	void
		965	object::do_destroy ()
		966	{
		967	if (flag [FLAG_IS_LINKED])
		968	remove_button_link (this);
		969
		970	if (flag [FLAG_FRIENDLY])
		971	remove_friendly_object (this);
		972
		973	remove ();
		974
		975	attachable::do_destroy ();
		976
		977	deactivate ();
		978	unlink ();
		979
		980	flag [FLAG_FREED] = 1;
		981
		982	// hack to ensure that freed objects still have a valid map
		983	map = &freed_map;
		984	x = 1;
		985	y = 1;
		986
		987	if (more)
		988	{
		989	more->destroy ();
		990	more = 0;
		991	}
		992
		993	head = 0;
		994
		995	// clear those pointers that likely might cause circular references
		996	owner = 0;
		997	enemy = 0;
		998	attacked_by = 0;
		999	current_weapon = 0;
		1000	}
		1001
		1002	void
820	void object::destroy (bool destroy_inventory)	1003	object::destroy (bool destroy_inventory)
821	{	1004	{
822	if (QUERY_FLAG (this, FLAG_FREED))	1005	if (destroyed ())
823	return;	1006	return;
824		1007
825	if (QUERY_FLAG (this, FLAG_FRIENDLY))	1008	if (!is_head () && !head->destroyed ())
826	remove_friendly_object (this);
827
828	if (!QUERY_FLAG (this, FLAG_REMOVED))
829	remove ();
830
831	SET_FLAG (this, FLAG_FREED);
832
833	if (more)
834	{	1009	{
		1010	LOG (llevError | logBacktrace, "tried to destroy the tail of an object");
835	more->destroy (destroy_inventory);	1011	head->destroy (destroy_inventory);
836	more = 0;	1012	return;
837	}
838
839	if (inv)
840	{
841	/* Only if the space blocks everything do we not process -
842	* if some form of movement is allowed, let objects
843	* drop on that space.
844	*/
845	if (destroy_inventory || !map || map->in_memory != MAP_IN_MEMORY || GET_MAP_MOVE_BLOCK (map, x, y) == MOVE_ALL)
846	{
847	object *op = inv;
848
849	while (op)
850	{
851	object *tmp = op->below;
852	op->destroy (destroy_inventory);
853	op = tmp;
854	}
855	}
856	else
857	{ /* Put objects in inventory onto this space */
858	object *op = inv;
859
860	while (op)
861	{
862	object *tmp = op->below;
863
864	op->remove ();
865
866	if (QUERY_FLAG (op, FLAG_STARTEQUIP)
867	|| QUERY_FLAG (op, FLAG_NO_DROP) || op->type == RUNE || op->type == TRAP || QUERY_FLAG (op, FLAG_IS_A_TEMPLATE))
868	op->destroy ();
869	else
870	{
871	op->x = x;
872	op->y = y;
873	insert_ob_in_map (op, map, 0, 0); /* Insert in same map as the envir */
874	}
875
876	op = tmp;
877	}
878	}
879	}
880
881	// hack to ensure that freed objects still have a valid map
882	{
883	static maptile *freed_map; // freed objects are moved here to avoid crashes
884
885	if (!freed_map)
886	{
887	freed_map = new maptile;
888
889	freed_map->name = "/internal/freed_objects_map";
890	freed_map->width = 3;
891	freed_map->height = 3;
892
893	freed_map->allocate ();
894	}	1013	}
895		1014
896	map = freed_map;	1015	destroy_inv (!destroy_inventory);
897	x = 1;
898	y = 1;
899	}
900		1016
901	// clear those pointers that likely might have circular references to us	1017	if (is_head ())
902	owner = 0;	1018	if (sound_destroy)
903	enemy = 0;	1019	play_sound (sound_destroy);
904	attacked_by = 0;	1020	else if (flag [FLAG_MONSTER])
		1021	play_sound (sound_find ("monster_destroy")); // quick hack, too lazy to create a generic mechanism
905		1022
906	// only relevant for players(?), but make sure of it anyways	1023	attachable::destroy ();
907	contr = 0;
908
909	/* Remove object from the active list */
910	speed = 0;
911	update_ob_speed (this);
912
913	unlink ();
914
915	mortals.push_back (this);
916	}
917
918	/*
919	* sub_weight() recursively (outwards) subtracts a number from the
920	* weight of an object (and what is carried by it's environment(s)).
921	*/
922	void
923	sub_weight (object *op, signed long weight)
924	{
925	while (op != NULL)
926	{
927	if (op->type == CONTAINER)
928	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
929
930	op->carrying -= weight;
931	op = op->env;
932	}
933	}	1024	}
934		1025
935	/* op->remove ():	1026	/* op->remove ():
936	* This function removes the object op from the linked list of objects	1027	* This function removes the object op from the linked list of objects
937	* which it is currently tied to. When this function is done, the	1028	* which it is currently tied to. When this function is done, the
938	* object will have no environment. If the object previously had an	1029	* object will have no environment. If the object previously had an
939	* environment, the x and y coordinates will be updated to	1030	* environment, the x and y coordinates will be updated to
940	* the previous environment.	1031	* the previous environment.
941	* Beware: This function is called from the editor as well!
942	*/	1032	*/
943	void	1033	void
944	object::remove ()	1034	object::do_remove ()
945	{	1035	{
946	object *tmp, *last = 0;	1036	object *tmp, *last = 0;
947	object *otmp;	1037	object *otmp;
948		1038
949	int check_walk_off;	1039	if (flag [FLAG_REMOVED])
950
951	if (QUERY_FLAG (this, FLAG_REMOVED))
952	return;	1040	return;
953		1041
954	SET_FLAG (this, FLAG_REMOVED);	1042	INVOKE_OBJECT (REMOVE, this);
		1043
		1044	flag [FLAG_REMOVED] = true;
955		1045
956	if (more)	1046	if (more)
957	more->remove ();	1047	more->remove ();
958		1048
959	/*	1049	/*
960	* In this case, the object to be removed is in someones	1050	* In this case, the object to be removed is in someones
961	* inventory.	1051	* inventory.
962	*/	1052	*/
963	if (env)	1053	if (env)
964	{	1054	{
965	if (nrof)	1055	flag [FLAG_REMOVED] = false; // hack around the issue of visible_to checking flag_removed
966	sub_weight (env, weight * nrof);	1056	if (object *pl = visible_to ())
967	else	1057	esrv_del_item (pl->contr, count);
968	sub_weight (env, weight + carrying);	1058	flag [FLAG_REMOVED] = true; // hack around the issue of visible_to checking flag_removed
		1059
		1060	adjust_weight (env, -total_weight ());
		1061
		1062	/* we set up values so that it could be inserted into
		1063	* the map, but we don't actually do that - it is up
		1064	* to the caller to decide what we want to do.
		1065	*/
		1066	map = env->map;
		1067	x = env->x;
		1068	y = env->y;
		1069
		1070	// make sure cmov optimisation is applicable
		1071	*(above ? &above->below : &env->inv) = below;
		1072	*(below ? &below->above : &above ) = above; // &above is just a dummy
		1073
		1074	above = 0;
		1075	below = 0;
		1076	env = 0;
969		1077
970	/* NO_FIX_PLAYER is set when a great many changes are being	1078	/* NO_FIX_PLAYER is set when a great many changes are being
971	* made to players inventory. If set, avoiding the call	1079	* made to players inventory. If set, avoiding the call
972	* to save cpu time.	1080	* to save cpu time.
973	*/	1081	*/
974	if ((otmp = in_player ()) && otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))	1082	if ((otmp = in_player ()) && otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
975	otmp->update_stats ();	1083	otmp->update_stats ();
976
977	if (above != NULL)
978	above->below = below;
979	else
980	env->inv = below;
981
982	if (below != NULL)
983	below->above = above;
984
985	/* we set up values so that it could be inserted into
986	* the map, but we don't actually do that - it is up
987	* to the caller to decide what we want to do.
988	*/
989	x = env->x, y = env->y;
990	map = env->map;
991	above = 0, below = 0;
992	env = 0;
993	}	1084	}
994	else if (map)	1085	else if (map)
995	{	1086	{
996	/* Re did the following section of code - it looks like it had	1087	map->dirty = true;
997	* lots of logic for things we no longer care about	1088	mapspace &ms = this->ms ();
		1089
		1090	if (object *pl = ms.player ())
998	*/	1091	{
		1092	if (type == PLAYER) // this == pl(!)
		1093	{
		1094	// leaving a spot always closes any open container on the ground
		1095	if (container && !container->env)
		1096	// this causes spurious floorbox updates, but it ensures
		1097	// that the CLOSE event is being sent.
		1098	close_container ();
		1099
		1100	--map->players;
		1101	map->touch ();
		1102	}
		1103	else if (pl->container == this)
		1104	{
		1105	// removing a container should close it
		1106	close_container ();
		1107	}
		1108
		1109	esrv_del_item (pl->contr, count);
		1110	}
999		1111
1000	/* link the object above us */	1112	/* link the object above us */
1001	if (above)	1113	// re-link, make sure compiler can easily use cmove
1002	above->below = below;	1114	*(above ? &above->below : &ms.top) = below;
1003	else	1115	*(below ? &below->above : &ms.bot) = above;
1004	map->at (x, y).top = below; /* we were top, set new top */
1005
1006	/* Relink the object below us, if there is one */
1007	if (below)
1008	below->above = above;
1009	else
1010	{
1011	/* Nothing below, which means we need to relink map object for this space
1012	* use translated coordinates in case some oddness with map tiling is
1013	* evident
1014	*/
1015	if (GET_MAP_OB (map, x, y) != this)
1016	{
1017	char *dump = dump_object (this);
1018	LOG (llevError,
1019	"remove_ob: GET_MAP_OB does not return object to be removed even though it appears to be on the bottom?\n%s\n", dump);
1020	free (dump);
1021	dump = dump_object (GET_MAP_OB (map, x, y));
1022	LOG (llevError, "%s\n", dump);
1023	free (dump);
1024	}
1025
1026	map->at (x, y).bottom = above; /* goes on above it. */
1027	}
1028		1116
1029	above = 0;	1117	above = 0;
1030	below = 0;	1118	below = 0;
1031		1119
1032	if (map->in_memory == MAP_SAVING)	1120	if (map->in_memory == MAP_SAVING)
1033	return;	1121	return;
1034		1122
1035	check_walk_off = !QUERY_FLAG (this, FLAG_NO_APPLY);	1123	int check_walk_off = !flag [FLAG_NO_APPLY];
1036		1124
		1125	if (object *pl = ms.player ())
		1126	{
		1127	if (pl->container == this)
		1128	/* If a container that the player is currently using somehow gets
		1129	* removed (most likely destroyed), update the player view
		1130	* appropriately.
		1131	*/
		1132	pl->close_container ();
		1133
		1134	//TODO: the floorbox prev/next might need updating
		1135	//esrv_del_item (pl->contr, count);
		1136	//TODO: update floorbox to preserve ordering
		1137	if (pl->contr->ns)
		1138	pl->contr->ns->floorbox_update ();
		1139	}
		1140
1037	for (tmp = GET_MAP_OB (map, x, y); tmp; tmp = tmp->above)	1141	for (tmp = ms.bot; tmp; tmp = tmp->above)
1038	{	1142	{
1039	/* No point updating the players look faces if he is the object	1143	/* No point updating the players look faces if he is the object
1040	* being removed.	1144	* being removed.
1041	*/	1145	*/
1042		1146
1043	if (tmp->type == PLAYER && tmp != this)
1044	{
1045	/* If a container that the player is currently using somehow gets
1046	* removed (most likely destroyed), update the player view
1047	* appropriately.
1048	*/
1049	if (tmp->container == this)
1050	{
1051	CLEAR_FLAG (this, FLAG_APPLIED);
1052	tmp->container = 0;
1053	}
1054
1055	tmp->contr->ns->floorbox_update ();
1056	}
1057
1058	/* See if player moving off should effect something */	1147	/* See if object moving off should effect something */
1059	if (check_walk_off	1148	if (check_walk_off
1060	&& ((move_type & tmp->move_off)	1149	&& ((move_type & tmp->move_off)
1061	&& (move_type & ~tmp->move_off & ~tmp->move_block) == 0))	1150	&& (move_type & ~tmp->move_off & ~tmp->move_block) == 0))
1062	{	1151	{
1063	move_apply (tmp, this, 0);	1152	move_apply (tmp, this, 0);
1064		1153
1065	if (destroyed ())	1154	if (destroyed ())
1066	LOG (llevError, "BUG: remove_ob(): name %s, destroyed leaving object\n", tmp->debug_desc ());	1155	LOG (llevError, "BUG: remove_ob(): name %s, destroyed leaving object\n", tmp->debug_desc ());
1067	}	1156	}
1068		1157
1069	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */
1070
1071	if (tmp->above == tmp)
1072	tmp->above = 0;
1073
1074	last = tmp;	1158	last = tmp;
1075	}	1159	}
1076		1160
1077	/* last == NULL of there are no objects on this space */	1161	/* last == NULL if there are no objects on this space */
		1162	//TODO: this makes little sense, why only update the topmost object?
1078	if (!last)	1163	if (!last)
1079	map->at (x, y).flags_ = P_NEED_UPDATE;	1164	map->at (x, y).flags_ = 0;
1080	else	1165	else
1081	update_object (last, UP_OBJ_REMOVE);	1166	update_object (last, UP_OBJ_REMOVE);
1082		1167
1083	if (QUERY_FLAG (this, FLAG_BLOCKSVIEW) || glow_radius)	1168	if (flag [FLAG_BLOCKSVIEW] || glow_radius)
1084	update_all_los (map, x, y);	1169	update_all_los (map, x, y);
1085	}	1170	}
1086	}	1171	}
1087		1172
1088	/*	1173	/*
…		…
1097	merge_ob (object *op, object *top)	1182	merge_ob (object *op, object *top)
1098	{	1183	{
1099	if (!op->nrof)	1184	if (!op->nrof)
1100	return 0;	1185	return 0;
1101		1186
1102	if (top == NULL)	1187	if (!top)
1103	for (top = op; top != NULL && top->above != NULL; top = top->above);	1188	for (top = op; top && top->above; top = top->above)
		1189	;
1104		1190
1105	for (; top != NULL; top = top->below)	1191	for (; top; top = top->below)
1106	{
1107	if (top == op)
1108	continue;
1109
1110	if (object::can_merge (op, top))	1192	if (object::can_merge (op, top))
1111	{	1193	{
1112	top->nrof += op->nrof;	1194	top->nrof += op->nrof;
1113		1195
1114	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/	1196	if (object *pl = top->visible_to ())
1115	op->weight = 0; /* Don't want any adjustements now */	1197	esrv_update_item (UPD_NROF, pl, top);
		1198
		1199	op->weight = 0; // cancel the addition above
		1200	op->carrying = 0; // must be 0 already
		1201
1116	op->destroy ();	1202	op->destroy (1);
		1203
1117	return top;	1204	return top;
1118	}	1205	}
1119	}
1120		1206
1121	return 0;	1207	return 0;
1122	}	1208	}
1123		1209
		1210	void
		1211	object::expand_tail ()
		1212	{
		1213	if (more)
		1214	return;
		1215
		1216	object *prev = this;
		1217
		1218	for (archetype *at = (archetype *)arch->more; at; at = (archetype *)at->more)
		1219	{
		1220	object *op = arch_to_object (at);
		1221
		1222	op->name = name;
		1223	op->name_pl = name_pl;
		1224	op->title = title;
		1225
		1226	op->head = this;
		1227	prev->more = op;
		1228
		1229	prev = op;
		1230	}
		1231	}
		1232
1124	/*	1233	/*
1125	* same as insert_ob_in_map except it handle separate coordinates and do a clean	1234	* same as insert_ob_in_map except it handles separate coordinates and does a clean
1126	* job preparing multi-part monsters	1235	* job preparing multi-part monsters.
1127	*/	1236	*/
1128	object *	1237	object *
1129	insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)	1238	insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)
1130	{	1239	{
1131	object *tmp;	1240	op->remove ();
1132		1241
1133	if (op->head)
1134	op = op->head;
1135
1136	for (tmp = op; tmp; tmp = tmp->more)	1242	for (object *tmp = op->head_ (); tmp; tmp = tmp->more)
1137	{	1243	{
1138	tmp->x = x + tmp->arch->clone.x;	1244	tmp->x = x + tmp->arch->x;
1139	tmp->y = y + tmp->arch->clone.y;	1245	tmp->y = y + tmp->arch->y;
1140	}	1246	}
1141		1247
1142	return insert_ob_in_map (op, m, originator, flag);	1248	return insert_ob_in_map (op, m, originator, flag);
1143	}	1249	}
1144		1250
…		…
1160	* Return value:	1266	* Return value:
1161	* new object if 'op' was merged with other object	1267	* new object if 'op' was merged with other object
1162	* NULL if 'op' was destroyed	1268	* NULL if 'op' was destroyed
1163	* just 'op' otherwise	1269	* just 'op' otherwise
1164	*/	1270	*/
1165
1166	object *	1271	object *
1167	insert_ob_in_map (object *op, maptile *m, object *originator, int flag)	1272	insert_ob_in_map (object *op, maptile *m, object *originator, int flag)
1168	{	1273	{
1169	object *tmp, *top, *floor = NULL;	1274	if (op->is_on_map ())
1170	sint16 x, y;
1171
1172	if (QUERY_FLAG (op, FLAG_FREED))
1173	{
1174	LOG (llevError, "Trying to insert freed object!\n");
1175	return NULL;
1176	}	1275	{
1177		1276	LOG (llevError, "insert_ob_in_map called for object already on map");
1178	if (m == NULL)
1179	{
1180	char *dump = dump_object (op);
1181	LOG (llevError, "Trying to insert in null-map!\n%s\n", dump);
1182	free (dump);
1183	return op;
1184	}
1185
1186	if (out_of_map (m, op->x, op->y))
1187	{
1188	char *dump = dump_object (op);
1189	LOG (llevError, "Trying to insert object outside the map.\n%s\n", dump);
1190	#ifdef MANY_CORES
1191	/* Better to catch this here, as otherwise the next use of this object
1192	* is likely to cause a crash. Better to find out where it is getting
1193	* improperly inserted.
1194	*/
1195	abort ();	1277	abort ();
1196	#endif
1197	free (dump);
1198	return op;
1199	}
1200
1201	if (!QUERY_FLAG (op, FLAG_REMOVED))
1202	{	1278	}
1203	char *dump = dump_object (op);	1279
1204	LOG (llevError, "Trying to insert (map) inserted object.\n%s\n", dump);	1280	if (op->env)
1205	free (dump);
1206	return op;
1207	}	1281	{
1208		1282	LOG (llevError, "insert_ob_in_map called for object in an inventory (proceeding)");
1209	if (op->more != NULL)	1283	op->remove ();
1210	{	1284	}
1211	/* The part may be on a different map. */
1212		1285
1213	object *more = op->more;	1286	if (op->face && !face_info (op->face))//D TODO: remove soon
1214		1287	{//D
1215	/* We really need the caller to normalize coordinates - if	1288	LOG (llevError | logBacktrace, "op->face out of bounds: %s", op->debug_desc ());//D
1216	* we set the map, that doesn't work if the location is within	1289	op->face = 1;//D
1217	* a map and this is straddling an edge. So only if coordinate
1218	* is clear wrong do we normalize it.
1219	*/
1220	if (OUT_OF_REAL_MAP (more->map, more->x, more->y))
1221	more->map = get_map_from_coord (m, &more->x, &more->y);
1222	else if (!more->map)
1223	{
1224	/* For backwards compatibility - when not dealing with tiled maps,
1225	* more->map should always point to the parent.
1226	*/
1227	more->map = m;
1228	}
1229
1230	if (insert_ob_in_map (more, more->map, originator, flag) == NULL)
1231	{
1232	if (!op->head)
1233	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");
1234
1235	return NULL;
1236	}
1237	}	1290	}//D
1238
1239	CLEAR_FLAG (op, FLAG_REMOVED);
1240		1291
1241	/* Ideally, the caller figures this out. However, it complicates a lot	1292	/* Ideally, the caller figures this out. However, it complicates a lot
1242	* of areas of callers (eg, anything that uses find_free_spot would now	1293	* of areas of callers (eg, anything that uses find_free_spot would now
1243	* need extra work	1294	* need extra work
1244	*/	1295	*/
1245	op->map = get_map_from_coord (m, &op->x, &op->y);	1296	if (!xy_normalise (m, op->x, op->y))
1246	x = op->x;	1297	{
1247	y = op->y;	1298	op->head_ ()->destroy (1);// remove head_ once all tail object destroyers found
		1299	return 0;
		1300	}
		1301
		1302	if (object *more = op->more)
		1303	if (!insert_ob_in_map (more, m, originator, flag))
		1304	return 0;
		1305
		1306	CLEAR_FLAG (op, FLAG_REMOVED);
		1307
		1308	op->map = m;
		1309	mapspace &ms = op->ms ();
1248		1310
1249	/* this has to be done after we translate the coordinates.	1311	/* this has to be done after we translate the coordinates.
1250	*/	1312	*/
1251	if (op->nrof && !(flag & INS_NO_MERGE))	1313	if (op->nrof && !(flag & INS_NO_MERGE))
1252	for (tmp = GET_MAP_OB (op->map, x, y); tmp != NULL; tmp = tmp->above)	1314	for (object *tmp = ms.bot; tmp; tmp = tmp->above)
1253	if (object::can_merge (op, tmp))	1315	if (object::can_merge (op, tmp))
1254	{	1316	{
		1317	// TODO: we actually want to update tmp, not op,
		1318	// but some caller surely breaks when we return tmp
		1319	// from here :/
1255	op->nrof += tmp->nrof;	1320	op->nrof += tmp->nrof;
1256	tmp->destroy ();	1321	tmp->destroy (1);
1257	}	1322	}
1258		1323
1259	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */	1324	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */
1260	CLEAR_FLAG (op, FLAG_INV_LOCKED);	1325	CLEAR_FLAG (op, FLAG_INV_LOCKED);
1261		1326
…		…
1268	{	1333	{
1269	LOG (llevError, "insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");	1334	LOG (llevError, "insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");
1270	abort ();	1335	abort ();
1271	}	1336	}
1272		1337
		1338	if (!originator->is_on_map ())
		1339	LOG (llevDebug | logBacktrace, "insert_ob_in_map(%s) called with INS_BELOW_ORIGINATOR when originator '%s' not on map",
		1340	op->debug_desc (), originator->debug_desc ());
		1341
1273	op->above = originator;	1342	op->above = originator;
1274	op->below = originator->below;	1343	op->below = originator->below;
1275
1276	if (op->below)
1277	op->below->above = op;
1278	else
1279	op->ms ().bottom = op;
1280
1281	/* since *below* originator, no need to update top */
1282	originator->below = op;	1344	originator->below = op;
		1345
		1346	*(op->below ? &op->below->above : &ms.bot) = op;
1283	}	1347	}
1284	else	1348	else
1285	{	1349	{
		1350	object *floor = 0;
		1351	object *top = ms.top;
		1352
1286	/* If there are other objects, then */	1353	/* If there are other objects, then */
1287	if ((!(flag & INS_MAP_LOAD)) && ((top = GET_MAP_OB (op->map, op->x, op->y)) != NULL))	1354	if (top)
1288	{	1355	{
1289	object *last = NULL;
1290
1291	/*	1356	/*
1292	* If there are multiple objects on this space, we do some trickier handling.	1357	* If there are multiple objects on this space, we do some trickier handling.
1293	* We've already dealt with merging if appropriate.	1358	* We've already dealt with merging if appropriate.
1294	* Generally, we want to put the new object on top. But if	1359	* Generally, we want to put the new object on top. But if
1295	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last	1360	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last
…		…
1298	* once we get to them. This reduces the need to traverse over all of	1363	* once we get to them. This reduces the need to traverse over all of
1299	* them when adding another one - this saves quite a bit of cpu time	1364	* them when adding another one - this saves quite a bit of cpu time
1300	* when lots of spells are cast in one area. Currently, it is presumed	1365	* when lots of spells are cast in one area. Currently, it is presumed
1301	* that flying non pickable objects are spell objects.	1366	* that flying non pickable objects are spell objects.
1302	*/	1367	*/
1303		1368	for (object *tmp = ms.bot; tmp; tmp = tmp->above)
1304	while (top != NULL)
1305	{	1369	{
1306	if (QUERY_FLAG (top, FLAG_IS_FLOOR) || QUERY_FLAG (top, FLAG_OVERLAY_FLOOR))	1370	if (QUERY_FLAG (tmp, FLAG_IS_FLOOR) || QUERY_FLAG (tmp, FLAG_OVERLAY_FLOOR))
1307	floor = top;	1371	floor = tmp;
1308		1372
1309	if (QUERY_FLAG (top, FLAG_NO_PICK) && (top->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (top, FLAG_IS_FLOOR))	1373	if (QUERY_FLAG (tmp, FLAG_NO_PICK) && (tmp->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (tmp, FLAG_IS_FLOOR))
1310	{	1374	{
1311	/* We insert above top, so we want this object below this */	1375	/* We insert above top, so we want this object below this */
1312	top = top->below;	1376	top = tmp->below;
1313	break;	1377	break;
1314	}	1378	}
1315		1379
1316	last = top;
1317	top = top->above;	1380	top = tmp;
1318	}	1381	}
1319
1320	/* Don't want top to be NULL, so set it to the last valid object */
1321	top = last;
1322		1382
1323	/* We let update_position deal with figuring out what the space	1383	/* We let update_position deal with figuring out what the space
1324	* looks like instead of lots of conditions here.	1384	* looks like instead of lots of conditions here.
1325	* makes things faster, and effectively the same result.	1385	* makes things faster, and effectively the same result.
1326	*/	1386	*/
1327		1387
1328	/* Have object 'fall below' other objects that block view.	1388	/* Have object 'fall below' other objects that block view.
1329	* Unless those objects are exits, type 66	1389	* Unless those objects are exits.
1330	* If INS_ON_TOP is used, don't do this processing	1390	* If INS_ON_TOP is used, don't do this processing
1331	* Need to find the object that in fact blocks view, otherwise	1391	* Need to find the object that in fact blocks view, otherwise
1332	* stacking is a bit odd.	1392	* stacking is a bit odd.
1333	*/	1393	*/
1334	if (!(flag & INS_ON_TOP) &&	1394	if (!(flag & INS_ON_TOP)
1335	(get_map_flags (op->map, 0, op->x, op->y, 0, 0) & P_BLOCKSVIEW) && (op->face && !op->face->visibility))	1395	&& ms.flags () & P_BLOCKSVIEW
		1396	&& (op->face && !faces [op->face].visibility))
1336	{	1397	{
		1398	object *last;
		1399
1337	for (last = top; last != floor; last = last->below)	1400	for (last = top; last != floor; last = last->below)
1338	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))	1401	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))
1339	break;	1402	break;
		1403
1340	/* Check to see if we found the object that blocks view,	1404	/* Check to see if we found the object that blocks view,
1341	* and make sure we have a below pointer for it so that	1405	* and make sure we have a below pointer for it so that
1342	* we can get inserted below this one, which requires we	1406	* we can get inserted below this one, which requires we
1343	* set top to the object below us.	1407	* set top to the object below us.
1344	*/	1408	*/
1345	if (last && last->below && last != floor)	1409	if (last && last->below && last != floor)
1346	top = last->below;	1410	top = last->below;
1347	}	1411	}
1348	} /* If objects on this space */	1412	} /* If objects on this space */
1349		1413
1350	if (flag & INS_MAP_LOAD)
1351	top = GET_MAP_TOP (op->map, op->x, op->y);
1352
1353	if (flag & INS_ABOVE_FLOOR_ONLY)	1414	if (flag & INS_ABOVE_FLOOR_ONLY)
1354	top = floor;	1415	top = floor;
1355		1416
1356	/* Top is the object that our object (op) is going to get inserted above.	1417	// insert object above top, or bottom-most if top = 0
1357	*/
1358
1359	/* First object on this space */
1360	if (!top)	1418	if (!top)
1361	{	1419	{
1362	op->above = GET_MAP_OB (op->map, op->x, op->y);
1363
1364	if (op->above)
1365	op->above->below = op;
1366
1367	op->below = NULL;	1420	op->below = 0;
		1421	op->above = ms.bot;
1368	op->ms ().bottom = op;	1422	ms.bot = op;
		1423
		1424	*(op->above ? &op->above->below : &ms.top) = op;
1369	}	1425	}
1370	else	1426	else
1371	{ /* get inserted into the stack above top */	1427	{
1372	op->above = top->above;	1428	op->above = top->above;
1373
1374	if (op->above)
1375	op->above->below = op;	1429	top->above = op;
1376		1430
1377	op->below = top;	1431	op->below = top;
1378	top->above = op;	1432	*(op->above ? &op->above->below : &ms.top) = op;
1379	}	1433	}
1380		1434	}
1381	if (op->above == NULL)
1382	op->ms ().top = op;
1383	} /* else not INS_BELOW_ORIGINATOR */
1384		1435
1385	if (op->type == PLAYER)	1436	if (op->type == PLAYER)
		1437	{
1386	op->contr->do_los = 1;	1438	op->contr->do_los = 1;
		1439	++op->map->players;
		1440	op->map->touch ();
		1441	}
1387		1442
1388	/* If we have a floor, we know the player, if any, will be above	1443	op->map->dirty = true;
1389	* it, so save a few ticks and start from there.	1444
1390	*/
1391	if (!(flag & INS_MAP_LOAD))
1392	if (object *pl = op->ms ().player ())	1445	if (object *pl = ms.player ())
		1446	//TODO: the floorbox prev/next might need updating
		1447	//esrv_send_item (pl, op);
		1448	//TODO: update floorbox to preserve ordering
		1449	if (pl->contr->ns)
1393	pl->contr->ns->floorbox_update ();	1450	pl->contr->ns->floorbox_update ();
1394		1451
1395	/* If this object glows, it may affect lighting conditions that are	1452	/* If this object glows, it may affect lighting conditions that are
1396	* visible to others on this map. But update_all_los is really	1453	* visible to others on this map. But update_all_los is really
1397	* an inefficient way to do this, as it means los for all players	1454	* an inefficient way to do this, as it means los for all players
1398	* on the map will get recalculated. The players could very well	1455	* on the map will get recalculated. The players could very well
1399	* be far away from this change and not affected in any way -	1456	* be far away from this change and not affected in any way -
1400	* this should get redone to only look for players within range,	1457	* this should get redone to only look for players within range,
1401	* or just updating the P_NEED_UPDATE for spaces within this area	1458	* or just updating the P_UPTODATE for spaces within this area
1402	* of effect may be sufficient.	1459	* of effect may be sufficient.
1403	*/	1460	*/
1404	if (MAP_DARKNESS (op->map) && (op->glow_radius != 0))	1461	if (op->map->darkness && (op->glow_radius != 0))
1405	update_all_los (op->map, op->x, op->y);	1462	update_all_los (op->map, op->x, op->y);
1406		1463
1407	/* updates flags (blocked, alive, no magic, etc) for this map space */	1464	/* updates flags (blocked, alive, no magic, etc) for this map space */
1408	update_object (op, UP_OBJ_INSERT);	1465	update_object (op, UP_OBJ_INSERT);
		1466
		1467	INVOKE_OBJECT (INSERT, op);
1409		1468
1410	/* Don't know if moving this to the end will break anything. However,	1469	/* Don't know if moving this to the end will break anything. However,
1411	* we want to have floorbox_update called before calling this.	1470	* we want to have floorbox_update called before calling this.
1412	*	1471	*
1413	* check_move_on() must be after this because code called from	1472	* check_move_on() must be after this because code called from
…		…
1415	* blocked() and wall() work properly), and these flags are updated by	1474	* blocked() and wall() work properly), and these flags are updated by
1416	* update_object().	1475	* update_object().
1417	*/	1476	*/
1418		1477
1419	/* if this is not the head or flag has been passed, don't check walk on status */	1478	/* if this is not the head or flag has been passed, don't check walk on status */
1420	if (!(flag & INS_NO_WALK_ON) && !op->head)	1479	if (!(flag & INS_NO_WALK_ON) && op->head_ () == op)
1421	{	1480	{
1422	if (check_move_on (op, originator))	1481	if (check_move_on (op, originator))
1423	return NULL;	1482	return 0;
1424		1483
1425	/* If we are a multi part object, lets work our way through the check	1484	/* If we are a multi part object, lets work our way through the check
1426	* walk on's.	1485	* walk on's.
1427	*/	1486	*/
1428	for (tmp = op->more; tmp != NULL; tmp = tmp->more)	1487	for (object *tmp = op->more; tmp; tmp = tmp->more)
1429	if (check_move_on (tmp, originator))	1488	if (check_move_on (tmp, originator))
1430	return NULL;	1489	return 0;
1431	}	1490	}
1432		1491
1433	return op;	1492	return op;
1434	}	1493	}
1435		1494
…		…
1438	* op is the object to insert it under: supplies x and the map.	1497	* op is the object to insert it under: supplies x and the map.
1439	*/	1498	*/
1440	void	1499	void
1441	replace_insert_ob_in_map (const char *arch_string, object *op)	1500	replace_insert_ob_in_map (const char *arch_string, object *op)
1442	{	1501	{
1443	object *tmp, *tmp1;
1444
1445	/* first search for itself and remove any old instances */	1502	/* first search for itself and remove any old instances */
1446		1503
1447	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)	1504	for (object *tmp = op->ms ().bot; tmp; tmp = tmp->above)
1448	if (!strcmp (tmp->arch->name, arch_string)) /* same archetype */	1505	if (!strcmp (tmp->arch->archname, arch_string)) /* same archetype */
1449	tmp->destroy ();	1506	tmp->destroy (1);
1450		1507
1451	tmp1 = arch_to_object (archetype::find (arch_string));	1508	object *tmp = arch_to_object (archetype::find (arch_string));
1452		1509
1453	tmp1->x = op->x;	1510	tmp->x = op->x;
1454	tmp1->y = op->y;	1511	tmp->y = op->y;
		1512
1455	insert_ob_in_map (tmp1, op->map, op, 0);	1513	insert_ob_in_map (tmp, op->map, op, 0);
1456	}	1514	}
1457
1458	/*
1459	* get_split_ob(ob,nr) splits up ob into two parts. The part which
1460	* is returned contains nr objects, and the remaining parts contains
1461	* the rest (or is removed and freed if that number is 0).
1462	* On failure, NULL is returned, and the reason put into the
1463	* global static errmsg array.
1464	*/
1465		1515
1466	object *	1516	object *
1467	get_split_ob (object *orig_ob, uint32 nr)	1517	object::insert_at (object *where, object *originator, int flags)
1468	{	1518	{
1469	object *newob;	1519	if (where->env)
1470	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);	1520	return where->env->insert (this);
1471		1521	else
1472	if (orig_ob->nrof < nr)	1522	return where->map->insert (this, where->x, where->y, originator, flags);
1473	{
1474	sprintf (errmsg, "There are only %d %ss.", orig_ob->nrof ? orig_ob->nrof : 1, &orig_ob->name);
1475	return NULL;
1476	}
1477
1478	newob = object_create_clone (orig_ob);
1479
1480	if ((orig_ob->nrof -= nr) < 1)
1481	orig_ob->destroy (1);
1482	else if (!is_removed)
1483	{
1484	if (orig_ob->env != NULL)
1485	sub_weight (orig_ob->env, orig_ob->weight * nr);
1486	if (orig_ob->env == NULL && orig_ob->map->in_memory != MAP_IN_MEMORY)
1487	{
1488	strcpy (errmsg, "Tried to split object whose map is not in memory.");
1489	LOG (llevDebug, "Error, Tried to split object whose map is not in memory.\n");
1490	return NULL;
1491	}
1492	}
1493
1494	newob->nrof = nr;
1495
1496	return newob;
1497	}	1523	}
1498		1524
1499	/*	1525	/*
1500	* decrease_ob_nr(object, number) decreases a specified number from	1526	* decrease(object, number) decreases a specified number from
1501	* the amount of an object. If the amount reaches 0, the object	1527	* the amount of an object. If the amount reaches 0, the object
1502	* is subsequently removed and freed.	1528	* is subsequently removed and freed.
1503	*	1529	*
1504	* Return value: 'op' if something is left, NULL if the amount reached 0	1530	* Return value: 'op' if something is left, NULL if the amount reached 0
1505	*/	1531	*/
		1532	bool
		1533	object::decrease (sint32 nr)
		1534	{
		1535	if (!nr)
		1536	return true;
1506		1537
		1538	nr = min (nr, nrof);
		1539
		1540	nrof -= nr;
		1541
		1542	if (nrof)
		1543	{
		1544	adjust_weight (env, -weight * max (1, nr)); // carrying == 0
		1545
		1546	if (object *pl = visible_to ())
		1547	esrv_update_item (UPD_NROF, pl, this);
		1548
		1549	return true;
		1550	}
		1551	else
		1552	{
		1553	destroy ();
		1554	return false;
		1555	}
		1556	}
		1557
		1558	/*
		1559	* split(ob,nr) splits up ob into two parts. The part which
		1560	* is returned contains nr objects, and the remaining parts contains
		1561	* the rest (or is removed and returned if that number is 0).
		1562	* On failure, NULL is returned.
		1563	*/
1507	object *	1564	object *
1508	decrease_ob_nr (object *op, uint32 i)	1565	object::split (sint32 nr)
1509	{	1566	{
1510	object *tmp;	1567	int have = number_of ();
1511	player *pl;
1512		1568
1513	if (i == 0) /* objects with op->nrof require this check */	1569	if (have < nr)
1514	return op;	1570	return 0;
1515		1571	else if (have == nr)
1516	if (i > op->nrof)
1517	i = op->nrof;
1518
1519	if (QUERY_FLAG (op, FLAG_REMOVED))
1520	op->nrof -= i;
1521	else if (op->env)
1522	{	1572	{
1523	/* is this object in the players inventory, or sub container
1524	* therein?
1525	*/
1526	tmp = op->in_player ();
1527	/* nope. Is this a container the player has opened?
1528	* If so, set tmp to that player.
1529	* IMO, searching through all the players will mostly
1530	* likely be quicker than following op->env to the map,
1531	* and then searching the map for a player.
1532	*/
1533	if (!tmp)
1534	{
1535	for (pl = first_player; pl; pl = pl->next)
1536	if (pl->ob->container == op->env)
1537	{
1538	tmp = pl->ob;
1539	break;
1540	}
1541	}
1542
1543	if (i < op->nrof)
1544	{
1545	sub_weight (op->env, op->weight * i);
1546	op->nrof -= i;
1547	if (tmp)
1548	esrv_send_item (tmp, op);
1549	}
1550	else
1551	{
1552	op->remove ();	1573	remove ();
1553	op->nrof = 0;	1574	return this;
1554	if (tmp)
1555	esrv_del_item (tmp->contr, op->count);
1556	}
1557	}	1575	}
1558	else	1576	else
1559	{	1577	{
1560	object *above = op->above;	1578	decrease (nr);
1561		1579
1562	if (i < op->nrof)	1580	object *op = deep_clone ();
1563	op->nrof -= i;	1581	op->nrof = nr;
1564	else
1565	{
1566	op->remove ();
1567	op->nrof = 0;
1568	}
1569
1570	/* Since we just removed op, op->above is null */
1571	for (tmp = above; tmp; tmp = tmp->above)
1572	if (tmp->type == PLAYER)
1573	{
1574	if (op->nrof)
1575	esrv_send_item (tmp, op);
1576	else
1577	esrv_del_item (tmp->contr, op->count);
1578	}
1579	}
1580
1581	if (op->nrof)
1582	return op;	1582	return op;
1583	else
1584	{
1585	op->destroy ();
1586	return 0;
1587	}
1588	}
1589
1590	/*
1591	* add_weight(object, weight) adds the specified weight to an object,
1592	* and also updates how much the environment(s) is/are carrying.
1593	*/
1594
1595	void
1596	add_weight (object *op, signed long weight)
1597	{
1598	while (op != NULL)
1599	{
1600	if (op->type == CONTAINER)
1601	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1602
1603	op->carrying += weight;
1604	op = op->env;
1605	}	1583	}
1606	}	1584	}
1607		1585
1608	object *	1586	object *
1609	insert_ob_in_ob (object *op, object *where)	1587	insert_ob_in_ob (object *op, object *where)
…		…
1614	LOG (llevError, "Trying to put object in NULL.\n%s\n", dump);	1592	LOG (llevError, "Trying to put object in NULL.\n%s\n", dump);
1615	free (dump);	1593	free (dump);
1616	return op;	1594	return op;
1617	}	1595	}
1618		1596
1619	if (where->head)	1597	if (where->head_ () != where)
1620	{	1598	{
1621	LOG (llevDebug, "Warning: Tried to insert object into wrong part of multipart object.\n");	1599	LOG (llevError | logBacktrace, "Warning: Tried to insert object into wrong part of multipart object.\n");
1622	where = where->head;	1600	where = where->head;
1623	}	1601	}
1624		1602
1625	return where->insert (op);	1603	return where->insert (op);
1626	}	1604	}
…		…
1631	* inside the object environment.	1609	* inside the object environment.
1632	*	1610	*
1633	* The function returns now pointer to inserted item, and return value can	1611	* The function returns now pointer to inserted item, and return value can
1634	* be != op, if items are merged. -Tero	1612	* be != op, if items are merged. -Tero
1635	*/	1613	*/
1636
1637	object *	1614	object *
1638	object::insert (object *op)	1615	object::insert (object *op)
1639	{	1616	{
1640	object *tmp, *otmp;
1641
1642	if (!QUERY_FLAG (op, FLAG_REMOVED))
1643	op->remove ();
1644
1645	if (op->more)	1617	if (op->more)
1646	{	1618	{
1647	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);	1619	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);
1648	return op;	1620	return op;
1649	}	1621	}
1650		1622
1651	CLEAR_FLAG (op, FLAG_OBJ_ORIGINAL);	1623	op->remove ();
1652	CLEAR_FLAG (op, FLAG_REMOVED);	1624
		1625	op->flag [FLAG_OBJ_ORIGINAL] = 0;
		1626
1653	if (op->nrof)	1627	if (op->nrof)
1654	{
1655	for (tmp = inv; tmp != NULL; tmp = tmp->below)	1628	for (object *tmp = inv; tmp; tmp = tmp->below)
1656	if (object::can_merge (tmp, op))	1629	if (object::can_merge (tmp, op))
1657	{	1630	{
1658	/* return the original object and remove inserted object	1631	/* return the original object and remove inserted object
1659	(client needs the original object) */	1632	(client needs the original object) */
1660	tmp->nrof += op->nrof;	1633	tmp->nrof += op->nrof;
1661	/* Weight handling gets pretty funky. Since we are adding to	1634
1662	* tmp->nrof, we need to increase the weight.	1635	if (object *pl = tmp->visible_to ())
1663	*/	1636	esrv_update_item (UPD_NROF, pl, tmp);
		1637
1664	add_weight (this, op->weight * op->nrof);	1638	adjust_weight (this, op->total_weight ());
1665	SET_FLAG (op, FLAG_REMOVED);	1639
1666	op->destroy (); /* free the inserted object */	1640	op->destroy (1);
1667	op = tmp;	1641	op = tmp;
1668	op->remove (); /* and fix old object's links */	1642	goto inserted;
1669	CLEAR_FLAG (op, FLAG_REMOVED);
1670	break;
1671	}	1643	}
1672		1644
1673	/* I assume combined objects have no inventory	1645	op->owner = 0; // it's his/hers now. period.
1674	* We add the weight - this object could have just been removed
1675	* (if it was possible to merge). calling remove_ob will subtract
1676	* the weight, so we need to add it in again, since we actually do
1677	* the linking below
1678	*/
1679	add_weight (this, op->weight * op->nrof);
1680	}
1681	else
1682	add_weight (this, (op->weight + op->carrying));
1683
1684	otmp = this->in_player ();
1685	if (otmp && otmp->contr)
1686	if (!QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1687	otmp->update_stats ();
1688
1689	op->map = 0;	1646	op->map = 0;
1690	op->env = this;	1647	op->x = 0;
		1648	op->y = 0;
		1649
1691	op->above = 0;	1650	op->above = 0;
1692	op->below = 0;	1651	op->below = inv;
1693	op->x = 0, op->y = 0;	1652	op->env = this;
1694		1653
		1654	if (inv)
		1655	inv->above = op;
		1656
		1657	inv = op;
		1658
		1659	op->flag [FLAG_REMOVED] = 0;
		1660
		1661	if (object *pl = op->visible_to ())
		1662	esrv_send_item (pl, op);
		1663
		1664	adjust_weight (this, op->total_weight ());
		1665
		1666	inserted:
1695	/* reset the light list and los of the players on the map */	1667	/* reset the light list and los of the players on the map */
1696	if ((op->glow_radius != 0) && map)	1668	if (op->glow_radius && map && map->darkness)
1697	{
1698	#ifdef DEBUG_LIGHTS
1699	LOG (llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n", op->name);
1700	#endif /* DEBUG_LIGHTS */
1701	if (MAP_DARKNESS (map))
1702	update_all_los (map, x, y);	1669	update_all_los (map, x, y);
1703	}
1704		1670
1705	/* Client has no idea of ordering so lets not bother ordering it here.	1671	// if this is a player's inventory, update stats
1706	* It sure simplifies this function...	1672	if (type == PLAYER && !flag [FLAG_NO_FIX_PLAYER])
1707	*/	1673	update_stats ();
1708	if (!inv)	1674
1709	inv = op;	1675	INVOKE_OBJECT (INSERT, this);
1710	else
1711	{
1712	op->below = inv;
1713	op->below->above = op;
1714	inv = op;
1715	}
1716		1676
1717	return op;	1677	return op;
1718	}	1678	}
1719		1679
1720	/*	1680	/*
…		…
1735	*	1695	*
1736	* MSW 2001-07-08: Check all objects on space, not just those below	1696	* MSW 2001-07-08: Check all objects on space, not just those below
1737	* object being inserted. insert_ob_in_map may not put new objects	1697	* object being inserted. insert_ob_in_map may not put new objects
1738	* on top.	1698	* on top.
1739	*/	1699	*/
1740
1741	int	1700	int
1742	check_move_on (object *op, object *originator)	1701	check_move_on (object *op, object *originator)
1743	{	1702	{
1744	object *tmp;	1703	object *tmp;
1745	maptile *m = op->map;	1704	maptile *m = op->map;
…		…
1772		1731
1773	/* The objects have to be checked from top to bottom.	1732	/* The objects have to be checked from top to bottom.
1774	* Hence, we first go to the top:	1733	* Hence, we first go to the top:
1775	*/	1734	*/
1776		1735
1777	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL && tmp->above != NULL; tmp = tmp->above)	1736	for (tmp = op->ms ().bot; tmp && tmp->above; tmp = tmp->above)
1778	{	1737	{
1779	/* Trim the search when we find the first other spell effect	1738	/* Trim the search when we find the first other spell effect
1780	* this helps performance so that if a space has 50 spell objects,	1739	* this helps performance so that if a space has 50 spell objects,
1781	* we don't need to check all of them.	1740	* we don't need to check all of them.
1782	*/	1741	*/
…		…
1800	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||	1759	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||
1801	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))	1760	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))
1802	{	1761	{
1803		1762
1804	float	1763	float
1805	diff = tmp->move_slow_penalty * FABS (op->speed);	1764	diff = tmp->move_slow_penalty * fabs (op->speed);
1806		1765
1807	if (op->type == PLAYER)	1766	if (op->type == PLAYER)
1808	if ((QUERY_FLAG (tmp, FLAG_IS_HILLY) && find_skill_by_number (op, SK_CLIMBING)) ||	1767	if ((QUERY_FLAG (tmp, FLAG_IS_HILLY) && find_skill_by_number (op, SK_CLIMBING)) ||
1809	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))	1768	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))
1810	diff /= 4.0;	1769	diff /= 4.0;
…		…
1837	/*	1796	/*
1838	* present_arch(arch, map, x, y) searches for any objects with	1797	* present_arch(arch, map, x, y) searches for any objects with
1839	* a matching archetype at the given map and coordinates.	1798	* a matching archetype at the given map and coordinates.
1840	* The first matching object is returned, or NULL if none.	1799	* The first matching object is returned, or NULL if none.
1841	*/	1800	*/
1842
1843	object *	1801	object *
1844	present_arch (const archetype *at, maptile *m, int x, int y)	1802	present_arch (const archetype *at, maptile *m, int x, int y)
1845	{	1803	{
1846	object *
1847	tmp;
1848
1849	if (m == NULL || out_of_map (m, x, y))	1804	if (!m || out_of_map (m, x, y))
1850	{	1805	{
1851	LOG (llevError, "Present_arch called outside map.\n");	1806	LOG (llevError, "Present_arch called outside map.\n");
1852	return NULL;	1807	return NULL;
1853	}	1808	}
1854	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)	1809
1855	if (tmp->arch == at)	1810	for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)
		1811	if (tmp->arch->archname == at->archname)
1856	return tmp;	1812	return tmp;
		1813
1857	return NULL;	1814	return NULL;
1858	}	1815	}
1859		1816
1860	/*	1817	/*
1861	* present(type, map, x, y) searches for any objects with	1818	* present(type, map, x, y) searches for any objects with
1862	* a matching type variable at the given map and coordinates.	1819	* a matching type variable at the given map and coordinates.
1863	* The first matching object is returned, or NULL if none.	1820	* The first matching object is returned, or NULL if none.
1864	*/	1821	*/
1865
1866	object *	1822	object *
1867	present (unsigned char type, maptile *m, int x, int y)	1823	present (unsigned char type, maptile *m, int x, int y)
1868	{	1824	{
1869	object *
1870	tmp;
1871
1872	if (out_of_map (m, x, y))	1825	if (out_of_map (m, x, y))
1873	{	1826	{
1874	LOG (llevError, "Present called outside map.\n");	1827	LOG (llevError, "Present called outside map.\n");
1875	return NULL;	1828	return NULL;
1876	}	1829	}
1877	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)	1830
		1831	for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)
1878	if (tmp->type == type)	1832	if (tmp->type == type)
1879	return tmp;	1833	return tmp;
		1834
1880	return NULL;	1835	return NULL;
1881	}	1836	}
1882		1837
1883	/*	1838	/*
1884	* present_in_ob(type, object) searches for any objects with	1839	* present_in_ob(type, object) searches for any objects with
1885	* a matching type variable in the inventory of the given object.	1840	* a matching type variable in the inventory of the given object.
1886	* The first matching object is returned, or NULL if none.	1841	* The first matching object is returned, or NULL if none.
1887	*/	1842	*/
1888
1889	object *	1843	object *
1890	present_in_ob (unsigned char type, const object *op)	1844	present_in_ob (unsigned char type, const object *op)
1891	{	1845	{
1892	object *
1893	tmp;
1894
1895	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1846	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
1896	if (tmp->type == type)	1847	if (tmp->type == type)
1897	return tmp;	1848	return tmp;
		1849
1898	return NULL;	1850	return NULL;
1899	}	1851	}
1900		1852
1901	/*	1853	/*
1902	* present_in_ob (type, str, object) searches for any objects with	1854	* present_in_ob (type, str, object) searches for any objects with
…		…
1910	* str is the string to match against. Note that we match against	1862	* str is the string to match against. Note that we match against
1911	* the object name, not the archetype name. this is so that the	1863	* the object name, not the archetype name. this is so that the
1912	* spell code can use one object type (force), but change it's name	1864	* spell code can use one object type (force), but change it's name
1913	* to be unique.	1865	* to be unique.
1914	*/	1866	*/
1915
1916	object *	1867	object *
1917	present_in_ob_by_name (int type, const char *str, const object *op)	1868	present_in_ob_by_name (int type, const char *str, const object *op)
1918	{	1869	{
1919	object *
1920	tmp;
1921
1922	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1870	for (object *tmp = op->inv; tmp; tmp = tmp->below)
1923	{
1924	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))	1871	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))
1925	return tmp;	1872	return tmp;
1926	}	1873
1927	return NULL;	1874	return 0;
1928	}	1875	}
1929		1876
1930	/*	1877	/*
1931	* present_arch_in_ob(archetype, object) searches for any objects with	1878	* present_arch_in_ob(archetype, object) searches for any objects with
1932	* a matching archetype in the inventory of the given object.	1879	* a matching archetype in the inventory of the given object.
1933	* The first matching object is returned, or NULL if none.	1880	* The first matching object is returned, or NULL if none.
1934	*/	1881	*/
1935
1936	object *	1882	object *
1937	present_arch_in_ob (const archetype *at, const object *op)	1883	present_arch_in_ob (const archetype *at, const object *op)
1938	{	1884	{
1939	object *
1940	tmp;
1941
1942	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1885	for (object *tmp = op->inv; tmp; tmp = tmp->below)
1943	if (tmp->arch == at)	1886	if (tmp->arch->archname == at->archname)
1944	return tmp;	1887	return tmp;
		1888
1945	return NULL;	1889	return NULL;
1946	}	1890	}
1947		1891
1948	/*	1892	/*
1949	* activate recursively a flag on an object inventory	1893	* activate recursively a flag on an object inventory
1950	*/	1894	*/
1951	void	1895	void
1952	flag_inv (object *op, int flag)	1896	flag_inv (object *op, int flag)
1953	{	1897	{
1954	object *
1955	tmp;
1956
1957	if (op->inv)
1958	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1898	for (object *tmp = op->inv; tmp; tmp = tmp->below)
1959	{	1899	{
1960	SET_FLAG (tmp, flag);	1900	SET_FLAG (tmp, flag);
1961	flag_inv (tmp, flag);	1901	flag_inv (tmp, flag);
1962	}	1902	}
1963	} /*	1903	}
		1904
		1905	/*
1964	* desactivate recursively a flag on an object inventory	1906	* deactivate recursively a flag on an object inventory
1965	*/	1907	*/
1966	void	1908	void
1967	unflag_inv (object *op, int flag)	1909	unflag_inv (object *op, int flag)
1968	{	1910	{
1969	object *
1970	tmp;
1971
1972	if (op->inv)
1973	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1911	for (object *tmp = op->inv; tmp; tmp = tmp->below)
1974	{	1912	{
1975	CLEAR_FLAG (tmp, flag);	1913	CLEAR_FLAG (tmp, flag);
1976	unflag_inv (tmp, flag);	1914	unflag_inv (tmp, flag);
1977	}	1915	}
1978	}
1979
1980	/*
1981	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in
1982	* all it's inventory (recursively).
1983	* If checksums are used, a player will get set_cheat called for
1984	* him/her-self and all object carried by a call to this function.
1985	*/
1986
1987	void
1988	set_cheat (object *op)
1989	{
1990	SET_FLAG (op, FLAG_WAS_WIZ);
1991	flag_inv (op, FLAG_WAS_WIZ);
1992	}	1916	}
1993		1917
1994	/*	1918	/*
1995	* find_free_spot(object, map, x, y, start, stop) will search for	1919	* find_free_spot(object, map, x, y, start, stop) will search for
1996	* a spot at the given map and coordinates which will be able to contain	1920	* a spot at the given map and coordinates which will be able to contain
…		…
1998	* to search (see the freearr_x/y[] definition).	1922	* to search (see the freearr_x/y[] definition).
1999	* It returns a random choice among the alternatives found.	1923	* It returns a random choice among the alternatives found.
2000	* start and stop are where to start relative to the free_arr array (1,9	1924	* start and stop are where to start relative to the free_arr array (1,9
2001	* does all 4 immediate directions). This returns the index into the	1925	* does all 4 immediate directions). This returns the index into the
2002	* array of the free spot, -1 if no spot available (dir 0 = x,y)	1926	* array of the free spot, -1 if no spot available (dir 0 = x,y)
2003	* Note - this only checks to see if there is space for the head of the
2004	* object - if it is a multispace object, this should be called for all
2005	* pieces.
2006	* Note2: This function does correctly handle tiled maps, but does not	1927	* Note: This function does correctly handle tiled maps, but does not
2007	* inform the caller. However, insert_ob_in_map will update as	1928	* inform the caller. However, insert_ob_in_map will update as
2008	* necessary, so the caller shouldn't need to do any special work.	1929	* necessary, so the caller shouldn't need to do any special work.
2009	* Note - updated to take an object instead of archetype - this is necessary	1930	* Note - updated to take an object instead of archetype - this is necessary
2010	* because arch_blocked (now ob_blocked) needs to know the movement type	1931	* because arch_blocked (now ob_blocked) needs to know the movement type
2011	* to know if the space in question will block the object. We can't use	1932	* to know if the space in question will block the object. We can't use
2012	* the archetype because that isn't correct if the monster has been	1933	* the archetype because that isn't correct if the monster has been
2013	* customized, changed states, etc.	1934	* customized, changed states, etc.
2014	*/	1935	*/
2015
2016	int	1936	int
2017	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)	1937	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)
2018	{	1938	{
2019	int
2020	i,
2021	index = 0, flag;
2022	static int
2023	altern[SIZEOFFREE];	1939	int altern[SIZEOFFREE];
		1940	int index = 0, flag;
2024		1941
2025	for (i = start; i < stop; i++)	1942	for (int i = start; i < stop; i++)
2026	{	1943	{
2027	flag = ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]);	1944	mapxy pos (m, x, y); pos.move (i);
2028	if (!flag)	1945
		1946	if (!pos.normalise ())
		1947	continue;
		1948
		1949	mapspace &ms = *pos;
		1950
		1951	if (ms.flags () & P_IS_ALIVE)
		1952	continue;
		1953
		1954	/* However, often
		1955	* ob doesn't have any move type (when used to place exits)
		1956	* so the AND operation in OB_TYPE_MOVE_BLOCK doesn't work.
		1957	*/
		1958	if (ob && ob->move_type == 0 && ms.move_block != MOVE_ALL)
		1959	{
2029	altern[index++] = i;	1960	altern [index++] = i;
		1961	continue;
		1962	}
2030		1963
2031	/* Basically, if we find a wall on a space, we cut down the search size.	1964	/* Basically, if we find a wall on a space, we cut down the search size.
2032	* In this way, we won't return spaces that are on another side of a wall.	1965	* In this way, we won't return spaces that are on another side of a wall.
2033	* This mostly work, but it cuts down the search size in all directions -	1966	* This mostly work, but it cuts down the search size in all directions -
2034	* if the space being examined only has a wall to the north and empty	1967	* if the space being examined only has a wall to the north and empty
2035	* spaces in all the other directions, this will reduce the search space	1968	* spaces in all the other directions, this will reduce the search space
2036	* to only the spaces immediately surrounding the target area, and	1969	* to only the spaces immediately surrounding the target area, and
2037	* won't look 2 spaces south of the target space.	1970	* won't look 2 spaces south of the target space.
2038	*/	1971	*/
2039	else if ((flag & P_NO_PASS) && maxfree[i] < stop)	1972	if (ms.move_block == MOVE_ALL && maxfree[i] < stop)
		1973	{
2040	stop = maxfree[i];	1974	stop = maxfree[i];
		1975	continue;
		1976	}
		1977
		1978	/* Note it is intentional that we check ob - the movement type of the
		1979	* head of the object should correspond for the entire object.
		1980	*/
		1981	if (OB_TYPE_MOVE_BLOCK (ob, ms.move_block))
		1982	continue;
		1983
		1984	if (ob->blocked (m, pos.x, pos.y))
		1985	continue;
		1986
		1987	altern [index++] = i;
2041	}	1988	}
2042		1989
2043	if (!index)	1990	if (!index)
2044	return -1;	1991	return -1;
2045		1992
2046	return altern[RANDOM () % index];	1993	return altern [rndm (index)];
2047	}	1994	}
2048		1995
2049	/*	1996	/*
2050	* find_first_free_spot(archetype, maptile, x, y) works like	1997	* find_first_free_spot(archetype, maptile, x, y) works like
2051	* find_free_spot(), but it will search max number of squares.	1998	* find_free_spot(), but it will search max number of squares.
2052	* But it will return the first available spot, not a random choice.	1999	* But it will return the first available spot, not a random choice.
2053	* Changed 0.93.2: Have it return -1 if there is no free spot available.	2000	* Changed 0.93.2: Have it return -1 if there is no free spot available.
2054	*/	2001	*/
2055
2056	int	2002	int
2057	find_first_free_spot (const object *ob, maptile *m, int x, int y)	2003	find_first_free_spot (const object *ob, maptile *m, int x, int y)
2058	{	2004	{
2059	int
2060	i;
2061
2062	for (i = 0; i < SIZEOFFREE; i++)	2005	for (int i = 0; i < SIZEOFFREE; i++)
2063	{
2064	if (!ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]))	2006	if (!ob->blocked (m, x + freearr_x[i], y + freearr_y[i]))
2065	return i;	2007	return i;
2066	}	2008
2067	return -1;	2009	return -1;
2068	}	2010	}
2069		2011
2070	/*	2012	/*
2071	* The function permute(arr, begin, end) randomly reorders the array	2013	* The function permute(arr, begin, end) randomly reorders the array
2072	* arr[begin..end-1].	2014	* arr[begin..end-1].
		2015	* now uses a fisher-yates shuffle, old permute was broken
2073	*/	2016	*/
2074	static void	2017	static void
2075	permute (int *arr, int begin, int end)	2018	permute (int *arr, int begin, int end)
2076	{	2019	{
2077	int	2020	arr += begin;
2078	i,
2079	j,
2080	tmp,
2081	len;
2082
2083	len = end - begin;	2021	end -= begin;
2084	for (i = begin; i < end; i++)
2085	{
2086	j = begin + RANDOM () % len;
2087		2022
2088	tmp = arr[i];	2023	while (--end)
2089	arr[i] = arr[j];	2024	swap (arr [end], arr [rndm (end + 1)]);
2090	arr[j] = tmp;
2091	}
2092	}	2025	}
2093		2026
2094	/* new function to make monster searching more efficient, and effective!	2027	/* new function to make monster searching more efficient, and effective!
2095	* This basically returns a randomized array (in the passed pointer) of	2028	* This basically returns a randomized array (in the passed pointer) of
2096	* the spaces to find monsters. In this way, it won't always look for	2029	* the spaces to find monsters. In this way, it won't always look for
…		…
2099	* the 3x3 area will be searched, just not in a predictable order.	2032	* the 3x3 area will be searched, just not in a predictable order.
2100	*/	2033	*/
2101	void	2034	void
2102	get_search_arr (int *search_arr)	2035	get_search_arr (int *search_arr)
2103	{	2036	{
2104	int	2037	int i;
2105	i;
2106		2038
2107	for (i = 0; i < SIZEOFFREE; i++)	2039	for (i = 0; i < SIZEOFFREE; i++)
2108	{
2109	search_arr[i] = i;	2040	search_arr[i] = i;
2110	}
2111		2041
2112	permute (search_arr, 1, SIZEOFFREE1 + 1);	2042	permute (search_arr, 1, SIZEOFFREE1 + 1);
2113	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);	2043	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);
2114	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);	2044	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);
2115	}	2045	}
…		…
2124	* Perhaps incorrectly, but I'm making the assumption that exclude	2054	* Perhaps incorrectly, but I'm making the assumption that exclude
2125	* is actually want is going to try and move there. We need this info	2055	* is actually want is going to try and move there. We need this info
2126	* because we have to know what movement the thing looking to move	2056	* because we have to know what movement the thing looking to move
2127	* there is capable of.	2057	* there is capable of.
2128	*/	2058	*/
2129
2130	int	2059	int
2131	find_dir (maptile *m, int x, int y, object *exclude)	2060	find_dir (maptile *m, int x, int y, object *exclude)
2132	{	2061	{
2133	int
2134	i,
2135	max = SIZEOFFREE, mflags;	2062	int i, max = SIZEOFFREE, mflags;
2136		2063
2137	sint16 nx, ny;	2064	sint16 nx, ny;
2138	object *	2065	object *tmp;
2139	tmp;
2140	maptile *	2066	maptile *mp;
2141	mp;
2142		2067
2143	MoveType blocked, move_type;	2068	MoveType blocked, move_type;
2144		2069
2145	if (exclude && exclude->head)	2070	if (exclude && exclude->head_ () != exclude)
2146	{	2071	{
2147	exclude = exclude->head;	2072	exclude = exclude->head;
2148	move_type = exclude->move_type;	2073	move_type = exclude->move_type;
2149	}	2074	}
2150	else	2075	else
…		…
2163		2088
2164	if (mflags & P_OUT_OF_MAP)	2089	if (mflags & P_OUT_OF_MAP)
2165	max = maxfree[i];	2090	max = maxfree[i];
2166	else	2091	else
2167	{	2092	{
2168	blocked = GET_MAP_MOVE_BLOCK (mp, nx, ny);	2093	mapspace &ms = mp->at (nx, ny);
		2094
		2095	blocked = ms.move_block;
2169		2096
2170	if ((move_type & blocked) == move_type)	2097	if ((move_type & blocked) == move_type)
2171	max = maxfree[i];	2098	max = maxfree[i];
2172	else if (mflags & P_IS_ALIVE)	2099	else if (mflags & P_IS_ALIVE)
2173	{	2100	{
2174	for (tmp = GET_MAP_OB (mp, nx, ny); tmp; tmp = tmp->above)	2101	for (tmp = ms.bot; tmp; tmp = tmp->above)
2175	if ((QUERY_FLAG (tmp, FLAG_MONSTER) || tmp->type == PLAYER) && (tmp != exclude || (tmp->head && tmp->head != exclude)))	2102	if ((tmp->flag [FLAG_MONSTER] || tmp->type == PLAYER)
		2103	&& (tmp != exclude || (tmp->head_ () != tmp && tmp->head_ () != exclude)))
2176	break;	2104	break;
2177		2105
2178	if (tmp)	2106	if (tmp)
2179	return freedir[i];	2107	return freedir[i];
2180	}	2108	}
…		…
2186		2114
2187	/*	2115	/*
2188	* distance(object 1, object 2) will return the square of the	2116	* distance(object 1, object 2) will return the square of the
2189	* distance between the two given objects.	2117	* distance between the two given objects.
2190	*/	2118	*/
2191
2192	int	2119	int
2193	distance (const object *ob1, const object *ob2)	2120	distance (const object *ob1, const object *ob2)
2194	{	2121	{
2195	int i;
2196
2197	i = (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);	2122	return (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);
2198	return i;
2199	}	2123	}
2200		2124
2201	/*	2125	/*
2202	* find_dir_2(delta-x,delta-y) will return a direction in which	2126	* find_dir_2(delta-x,delta-y) will return a direction in which
2203	* an object which has subtracted the x and y coordinates of another	2127	* an object which has subtracted the x and y coordinates of another
2204	* object, needs to travel toward it.	2128	* object, needs to travel toward it.
2205	*/	2129	*/
2206
2207	int	2130	int
2208	find_dir_2 (int x, int y)	2131	find_dir_2 (int x, int y)
2209	{	2132	{
2210	int q;	2133	int q;
2211		2134
…		…
2240		2163
2241	return 3;	2164	return 3;
2242	}	2165	}
2243		2166
2244	/*	2167	/*
2245	* absdir(int): Returns a number between 1 and 8, which represent
2246	* the "absolute" direction of a number (it actually takes care of
2247	* "overflow" in previous calculations of a direction).
2248	*/
2249
2250	int
2251	absdir (int d)
2252	{
2253	while (d < 1)
2254	d += 8;
2255	while (d > 8)
2256	d -= 8;
2257	return d;
2258	}
2259
2260	/*
2261	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is	2168	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is
2262	* between two directions (which are expected to be absolute (see absdir())	2169	* between two directions (which are expected to be absolute (see absdir())
2263	*/	2170	*/
2264
2265	int	2171	int
2266	dirdiff (int dir1, int dir2)	2172	dirdiff (int dir1, int dir2)
2267	{	2173	{
2268	int	2174	int d;
2269	d;
2270		2175
2271	d = abs (dir1 - dir2);	2176	d = abs (dir1 - dir2);
2272	if (d > 4)	2177	if (d > 4)
2273	d = 8 - d;	2178	d = 8 - d;
		2179
2274	return d;	2180	return d;
2275	}	2181	}
2276		2182
2277	/* peterm:	2183	/* peterm:
2278	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.	2184	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.
…		…
2281	* This basically means that if direction is 15, then it could either go	2187	* This basically means that if direction is 15, then it could either go
2282	* direction 4, 14, or 16 to get back to where we are.	2188	* direction 4, 14, or 16 to get back to where we are.
2283	* Moved from spell_util.c to object.c with the other related direction	2189	* Moved from spell_util.c to object.c with the other related direction
2284	* functions.	2190	* functions.
2285	*/	2191	*/
2286
2287	int
2288	reduction_dir[SIZEOFFREE][3] = {	2192	int reduction_dir[SIZEOFFREE][3] = {
2289	{0, 0, 0}, /* 0 */	2193	{0, 0, 0}, /* 0 */
2290	{0, 0, 0}, /* 1 */	2194	{0, 0, 0}, /* 1 */
2291	{0, 0, 0}, /* 2 */	2195	{0, 0, 0}, /* 2 */
2292	{0, 0, 0}, /* 3 */	2196	{0, 0, 0}, /* 3 */
2293	{0, 0, 0}, /* 4 */	2197	{0, 0, 0}, /* 4 */
…		…
2384	* Cf 0.91.3 - don't let WIZ's pick up anything - will likely cause	2288	* Cf 0.91.3 - don't let WIZ's pick up anything - will likely cause
2385	* core dumps if they do.	2289	* core dumps if they do.
2386	*	2290	*
2387	* Add a check so we can't pick up invisible objects (0.93.8)	2291	* Add a check so we can't pick up invisible objects (0.93.8)
2388	*/	2292	*/
2389
2390	int	2293	int
2391	can_pick (const object *who, const object *item)	2294	can_pick (const object *who, const object *item)
2392	{	2295	{
2393	return /*QUERY_FLAG(who,FLAG_WIZ)|| */	2296	return /*QUERY_FLAG(who,FLAG_WIZ)|| */
2394	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&	2297	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&
…		…
2397		2300
2398	/*	2301	/*
2399	* create clone from object to another	2302	* create clone from object to another
2400	*/	2303	*/
2401	object *	2304	object *
2402	object_create_clone (object *asrc)	2305	object::deep_clone ()
2403	{	2306	{
2404	object *dst = 0, *tmp, *src, *part, *prev, *item;	2307	assert (("deep_clone called on non-head object", is_head ()));
2405		2308
2406	if (!asrc)	2309	object *dst = clone ();
2407	return 0;
2408		2310
2409	src = asrc;	2311	object *prev = dst;
2410	if (src->head)
2411	src = src->head;
2412
2413	prev = 0;
2414	for (part = src; part; part = part->more)	2312	for (object *part = this->more; part; part = part->more)
2415	{	2313	{
2416	tmp = part->clone ();	2314	object *tmp = part->clone ();
2417	tmp->x -= src->x;
2418	tmp->y -= src->y;
2419
2420	if (!part->head)
2421	{
2422	dst = tmp;
2423	tmp->head = 0;
2424	}
2425	else
2426	tmp->head = dst;	2315	tmp->head = dst;
2427
2428	tmp->more = 0;
2429
2430	if (prev)
2431	prev->more = tmp;	2316	prev->more = tmp;
2432
2433	prev = tmp;	2317	prev = tmp;
2434	}	2318	}
2435		2319
2436	for (item = src->inv; item; item = item->below)	2320	for (object *item = inv; item; item = item->below)
2437	insert_ob_in_ob (object_create_clone (item), dst);	2321	insert_ob_in_ob (item->deep_clone (), dst);
2438		2322
2439	return dst;	2323	return dst;
2440	}
2441
2442	/* GROS - Creates an object using a string representing its content. */
2443	/* Basically, we save the content of the string to a temp file, then call */
2444	/* load_object on it. I admit it is a highly inefficient way to make things, */
2445	/* but it was simple to make and allows reusing the load_object function. */
2446	/* Remember not to use load_object_str in a time-critical situation. */
2447	/* Also remember that multiparts objects are not supported for now. */
2448
2449	object *
2450	load_object_str (const char *obstr)
2451	{
2452	object *op;
2453	char filename[MAX_BUF];
2454
2455	sprintf (filename, "%s/cfloadobstr2044", settings.tmpdir);
2456
2457	FILE *tempfile = fopen (filename, "w");
2458
2459	if (tempfile == NULL)
2460	{
2461	LOG (llevError, "Error - Unable to access load object temp file\n");
2462	return NULL;
2463	}
2464
2465	fprintf (tempfile, obstr);
2466	fclose (tempfile);
2467
2468	op = object::create ();
2469
2470	object_thawer thawer (filename);
2471
2472	if (thawer)
2473	load_object (thawer, op, 0);
2474
2475	LOG (llevDebug, " load str completed, object=%s\n", &op->name);
2476	CLEAR_FLAG (op, FLAG_REMOVED);
2477
2478	return op;
2479	}	2324	}
2480		2325
2481	/* This returns the first object in who's inventory that	2326	/* This returns the first object in who's inventory that
2482	* has the same type and subtype match.	2327	* has the same type and subtype match.
2483	* returns NULL if no match.	2328	* returns NULL if no match.
2484	*/	2329	*/
2485	object *	2330	object *
2486	find_obj_by_type_subtype (const object *who, int type, int subtype)	2331	find_obj_by_type_subtype (const object *who, int type, int subtype)
2487	{	2332	{
2488	object *tmp;
2489
2490	for (tmp = who->inv; tmp; tmp = tmp->below)	2333	for (object *tmp = who->inv; tmp; tmp = tmp->below)
2491	if (tmp->type == type && tmp->subtype == subtype)	2334	if (tmp->type == type && tmp->subtype == subtype)
2492	return tmp;	2335	return tmp;
2493		2336
2494	return NULL;
2495	}
2496
2497	/* If ob has a field named key, return the link from the list,
2498	* otherwise return NULL.
2499	*
2500	* key must be a passed in shared string - otherwise, this won't
2501	* do the desired thing.
2502	*/
2503	key_value *
2504	get_ob_key_link (const object *ob, const char *key)
2505	{
2506	key_value *link;
2507
2508	for (link = ob->key_values; link != NULL; link = link->next)
2509	if (link->key == key)
2510	return link;
2511
2512	return NULL;
2513	}
2514
2515	/*
2516	* Returns the value of op has an extra_field for key, or NULL.
2517	*
2518	* The argument doesn't need to be a shared string.
2519	*
2520	* The returned string is shared.
2521	*/
2522	const char *
2523	get_ob_key_value (const object *op, const char *const key)
2524	{
2525	key_value *link;
2526	shstr_cmp canonical_key (key);
2527
2528	if (!canonical_key)
2529	{
2530	/* 1. There being a field named key on any object
2531	* implies there'd be a shared string to find.
2532	* 2. Since there isn't, no object has this field.
2533	* 3. Therefore, *this* object doesn't have this field.
2534	*/
2535	return 0;
2536	}
2537
2538	/* This is copied from get_ob_key_link() above -
2539	* only 4 lines, and saves the function call overhead.
2540	*/
2541	for (link = op->key_values; link; link = link->next)
2542	if (link->key == canonical_key)
2543	return link->value;
2544
2545	return 0;	2337	return 0;
2546	}	2338	}
2547		2339
2548		2340	const shstr &
2549	/*	2341	object::kv_get (const shstr &key) const
2550	* Updates the canonical_key in op to value.
2551	*
2552	* canonical_key is a shared string (value doesn't have to be).
2553	*
2554	* Unless add_key is TRUE, it won't add fields, only change the value of existing
2555	* keys.
2556	*
2557	* Returns TRUE on success.
2558	*/
2559	int
2560	set_ob_key_value_s (object *op, const shstr & canonical_key, const char *value, int add_key)
2561	{	2342	{
2562	key_value *	2343	for (key_value *kv = key_values; kv; kv = kv->next)
2563	field = NULL, *last = NULL;	2344	if (kv->key == key)
		2345	return kv->value;
2564		2346
2565	for (field = op->key_values; field != NULL; field = field->next)	2347	return shstr_null;
2566	{	2348	}
2567	if (field->key != canonical_key)	2349
		2350	void
		2351	object::kv_set (const shstr &key, const shstr &value)
		2352	{
		2353	for (key_value *kv = key_values; kv; kv = kv->next)
		2354	if (kv->key == key)
2568	{	2355	{
2569	last = field;	2356	kv->value = value;
2570	continue;	2357	return;
2571	}	2358	}
2572		2359
2573	if (value)	2360	key_value *kv = new key_value;
2574	field->value = value;	2361
2575	else	2362	kv->next = key_values;
		2363	kv->key = key;
		2364	kv->value = value;
		2365
		2366	key_values = kv;
		2367	}
		2368
		2369	void
		2370	object::kv_del (const shstr &key)
		2371	{
		2372	for (key_value **kvp = &key_values; *kvp; kvp = &(*kvp)->next)
		2373	if ((*kvp)->key == key)
2576	{	2374	{
2577	/* Basically, if the archetype has this key set,	2375	key_value *kv = *kvp;
2578	* we need to store the null value so when we save	2376	*kvp = (*kvp)->next;
2579	* it, we save the empty value so that when we load,	2377	delete kv;
2580	* we get this value back again.	2378	return;
2581	*/
2582	if (get_ob_key_link (&op->arch->clone, canonical_key))
2583	field->value = 0;
2584	else
2585	{
2586	if (last)
2587	last->next = field->next;
2588	else
2589	op->key_values = field->next;
2590
2591	delete field;
2592	}
2593	}	2379	}
2594	return TRUE;
2595	}
2596	/* IF we get here, key doesn't exist */
2597
2598	/* No field, we'll have to add it. */
2599
2600	if (!add_key)
2601	{
2602	return FALSE;
2603	}
2604	/* There isn't any good reason to store a null
2605	* value in the key/value list. If the archetype has
2606	* this key, then we should also have it, so shouldn't
2607	* be here. If user wants to store empty strings,
2608	* should pass in ""
2609	*/
2610	if (value == NULL)
2611	return TRUE;
2612
2613	field = new key_value;
2614
2615	field->key = canonical_key;
2616	field->value = value;
2617	/* Usual prepend-addition. */
2618	field->next = op->key_values;
2619	op->key_values = field;
2620
2621	return TRUE;
2622	}
2623
2624	/*
2625	* Updates the key in op to value.
2626	*
2627	* If add_key is FALSE, this will only update existing keys,
2628	* and not add new ones.
2629	* In general, should be little reason FALSE is ever passed in for add_key
2630	*
2631	* Returns TRUE on success.
2632	*/
2633	int
2634	set_ob_key_value (object *op, const char *key, const char *value, int add_key)
2635	{
2636	shstr key_ (key);
2637
2638	return set_ob_key_value_s (op, key_, value, add_key);
2639	}	2380	}
2640		2381
2641	object::depth_iterator::depth_iterator (object *container)	2382	object::depth_iterator::depth_iterator (object *container)
2642	: iterator_base (container)	2383	: iterator_base (container)
2643	{	2384	{
…		…
2657	}	2398	}
2658	else	2399	else
2659	item = item->env;	2400	item = item->env;
2660	}	2401	}
2661		2402
		2403	const char *
		2404	object::flag_desc (char *desc, int len) const
		2405	{
		2406	char *p = desc;
		2407	bool first = true;
		2408
		2409	*p = 0;
		2410
		2411	for (int i = 0; i < NUM_FLAGS; i++)
		2412	{
		2413	if (len <= 10) // magic constant!
		2414	{
		2415	snprintf (p, len, ",...");
		2416	break;
		2417	}
		2418
		2419	if (flag [i])
		2420	{
		2421	int cnt = snprintf (p, len, "%s%d", first ? "" : ",", i);
		2422	len -= cnt;
		2423	p += cnt;
		2424	first = false;
		2425	}
		2426	}
		2427
		2428	return desc;
		2429	}
		2430
2662	// return a suitable string describing an objetc in enough detail to find it	2431	// return a suitable string describing an object in enough detail to find it
2663	const char *	2432	const char *
2664	object::debug_desc (char *info) const	2433	object::debug_desc (char *info) const
2665	{	2434	{
		2435	char flagdesc[512];
2666	char info2[256 * 3];	2436	char info2[256 * 4];
2667	char *p = info;	2437	char *p = info;
2668		2438
2669	p += snprintf (p, 256, "%d=\"%s%s%s\"",	2439	p += snprintf (p, 512, "{cnt:%d,uuid:%s,name:\"%s\"%s%s%s,flags:[%s],type:%d}",
2670	count,	2440	count,
		2441	uuid.c_str (),
2671	&name,	2442	&name,
2672	title ? " " : "",	2443	title ? ",title:\"" : "",
2673	title ? (const char *)title : "");	2444	title ? (const char *)title : "",
		2445	title ? "\"" : "",
		2446	flag_desc (flagdesc, 512), type);
2674		2447
2675	if (env)	2448	if (!flag[FLAG_REMOVED] && env)
2676	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));	2449	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));
2677		2450
2678	if (map)	2451	if (map)
2679	p += snprintf (p, 256, "(on %s@%d+%d)", map->path, x, y);	2452	p += snprintf (p, 256, "(on %s@%d+%d)", &map->path, x, y);
2680		2453
2681	return info;	2454	return info;
2682	}	2455	}
2683		2456
2684	const char *	2457	const char *
2685	object::debug_desc () const	2458	object::debug_desc () const
2686	{	2459	{
2687	static char info[256 * 3];	2460	static char info[3][256 * 4];
		2461	static int info_idx;
		2462
2688	return debug_desc (info);	2463	return debug_desc (info [++info_idx % 3]);
2689	}	2464	}
2690		2465
		2466	struct region *
		2467	object::region () const
		2468	{
		2469	return map ? map->region (x, y)
		2470	: region::default_region ();
		2471	}
		2472
		2473	const materialtype_t *
		2474	object::dominant_material () const
		2475	{
		2476	if (materialtype_t *mt = name_to_material (materialname))
		2477	return mt;
		2478
		2479	return name_to_material (shstr_unknown);
		2480	}
		2481
		2482	void
		2483	object::open_container (object *new_container)
		2484	{
		2485	if (container == new_container)
		2486	return;
		2487
		2488	object *old_container = container;
		2489
		2490	if (old_container)
		2491	{
		2492	if (INVOKE_OBJECT (CLOSE, old_container, ARG_OBJECT (this)))
		2493	return;
		2494
		2495	#if 0
		2496	// remove the "Close old_container" object.
		2497	if (object *closer = old_container->inv)
		2498	if (closer->type == CLOSE_CON)
		2499	closer->destroy ();
		2500	#endif
		2501
		2502	// make sure the container is available
		2503	esrv_send_item (this, old_container);
		2504
		2505	old_container->flag [FLAG_APPLIED] = false;
		2506	container = 0;
		2507
		2508	// client needs item update to make it work, client bug requires this to be separate
		2509	esrv_update_item (UPD_FLAGS, this, old_container);
		2510
		2511	new_draw_info_format (NDI_UNIQUE, 0, this, "You close %s.", query_name (old_container));
		2512	play_sound (sound_find ("chest_close"));
		2513	}
		2514
		2515	if (new_container)
		2516	{
		2517	if (INVOKE_OBJECT (OPEN, new_container, ARG_OBJECT (this)))
		2518	return;
		2519
		2520	// TODO: this does not seem to serve any purpose anymore?
		2521	#if 0
		2522	// insert the "Close Container" object.
		2523	if (archetype *closer = new_container->other_arch)
		2524	{
		2525	object *closer = arch_to_object (new_container->other_arch);
		2526	closer->flag [FLAG_NO_MAP_SAVE] = 1;
		2527	new_container->insert (closer);
		2528	}
		2529	#endif
		2530
		2531	new_draw_info_format (NDI_UNIQUE, 0, this, "You open %s.", query_name (new_container));
		2532
		2533	// make sure the container is available, client bug requires this to be separate
		2534	esrv_send_item (this, new_container);
		2535
		2536	new_container->flag [FLAG_APPLIED] = true;
		2537	container = new_container;
		2538
		2539	// client needs flag change
		2540	esrv_update_item (UPD_FLAGS, this, new_container);
		2541	esrv_send_inventory (this, new_container);
		2542	play_sound (sound_find ("chest_open"));
		2543	}
		2544	// else if (!old_container->env && contr && contr->ns)
		2545	// contr->ns->floorbox_reset ();
		2546	}
		2547
		2548	object *
		2549	object::force_find (const shstr name)
		2550	{
		2551	/* cycle through his inventory to look for the MARK we want to
		2552	* place
		2553	*/
		2554	for (object *tmp = inv; tmp; tmp = tmp->below)
		2555	if (tmp->type == FORCE && tmp->slaying == name)
		2556	return splay (tmp);
		2557
		2558	return 0;
		2559	}
		2560
		2561	void
		2562	object::force_add (const shstr name, int duration)
		2563	{
		2564	if (object *force = force_find (name))
		2565	force->destroy ();
		2566
		2567	object *force = get_archetype (FORCE_NAME);
		2568
		2569	force->slaying = name;
		2570	force->stats.food = 1;
		2571	force->speed_left = -1.f;
		2572
		2573	force->set_speed (duration ? 1.f / duration : 0.f);
		2574	force->flag [FLAG_IS_USED_UP] = true;
		2575	force->flag [FLAG_APPLIED] = true;
		2576
		2577	insert (force);
		2578	}
		2579
		2580	void
		2581	object::play_sound (faceidx sound)
		2582	{
		2583	if (!sound)
		2584	return;
		2585
		2586	if (flag [FLAG_REMOVED])
		2587	return;
		2588
		2589	if (env)
		2590	{
		2591	if (object *pl = in_player ())
		2592	pl->contr->play_sound (sound);
		2593	}
		2594	else
		2595	map->play_sound (sound, x, y);
		2596	}
		2597

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