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Comparing deliantra/server/common/object.C (file contents):
Revision 1.86 by root, Tue Dec 26 08:17:58 2006 UTC vs.
Revision 1.223 by root, Wed Apr 30 08:29:31 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;	144	key_value *wants_field;
139		145
140	/* n-squared behaviour (see get_ob_key_link()), but I'm hoping both	146	/* n-squared behaviour (see get_ob_key_link()), but I'm hoping both
…		…
148	key_value *has_field;	154	key_value *has_field;
149		155
150	/* Look for a field in has with the same key. */	156	/* Look for a field in has with the same key. */
151	has_field = get_ob_key_link (has, wants_field->key);	157	has_field = get_ob_key_link (has, wants_field->key);
152		158
153	if (has_field == NULL)	159	if (!has_field)
154	{
155	/* No field with that name. */	160	return 0; /* No field with that name. */
156	return FALSE;
157	}
158		161
159	/* Found the matching field. */	162	/* Found the matching field. */
160	if (has_field->value != wants_field->value)	163	if (has_field->value != wants_field->value)
161	{
162	/* Values don't match, so this half of the comparison is false. */	164	return 0; /* Values don't match, so this half of the comparison is false. */
163	return FALSE;
164	}
165		165
166	/* If we get here, we found a match. Now for the next field in wants. */	166	/* If we get here, we found a match. Now for the next field in wants. */
167	}	167	}
168		168
169	/* If we get here, every field in wants has a matching field in has. */	169	/* If we get here, every field in wants has a matching field in has. */
170	return TRUE;	170	return 1;
171	}	171	}
172		172
173	/* Returns TRUE if ob1 has the same key_values as ob2. */	173	/* Returns TRUE if ob1 has the same key_values as ob2. */
174	static int	174	static bool
175	compare_ob_value_lists (const object *ob1, const object *ob2)	175	compare_ob_value_lists (const object *ob1, const object *ob2)
176	{	176	{
177	/* However, there may be fields in has which aren't partnered in wants,	177	/* However, there may be fields in has which aren't partnered in wants,
178	* so we need to run the comparison *twice*. :(	178	* so we need to run the comparison *twice*. :(
179	*/	179	*/
…		…
190	* Check nrof variable *before* calling can_merge()	190	* Check nrof variable *before* calling can_merge()
191	*	191	*
192	* Improvements made with merge: Better checking on potion, and also	192	* Improvements made with merge: Better checking on potion, and also
193	* check weight	193	* check weight
194	*/	194	*/
195
196	bool object::can_merge_slow (object *ob1, object *ob2)	195	bool object::can_merge_slow (object *ob1, object *ob2)
197	{	196	{
198	/* A couple quicksanity checks */	197	/* A couple quicksanity checks */
199	if (ob1 == ob2	198	if (ob1 == ob2
200	|| ob1->type != ob2->type	199	|| ob1->type != ob2->type
201	|| ob1->speed != ob2->speed	200	|| ob1->speed != ob2->speed
202	|| ob1->value != ob2->value	201	|| ob1->value != ob2->value
203	|| ob1->name != ob2->name)	202	|| ob1->name != ob2->name)
204	return 0;	203	return 0;
205		204
206	//TODO: this ain't working well, use nicer and correct overflow check	205	/* 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	206	* for unsigned overflow (2c), second part checks whether the result
208	* value could not be stored in a sint32 (which unfortunately sometimes is	207	* would fit into a 32 bit signed int, which is often used to hold
209	* used to store nrof).	208	* nrof values.
210	*/	209	*/
211	if (ob1->nrof + ob2->nrof >= 1UL << 31)	210	if (~ob1->nrof < ob2->nrof || ob1->nrof + ob2->nrof > (1UL << 31))
212	return 0;	211	return 0;
213		212
214	/* If the objects have been identified, set the BEEN_APPLIED flag.	213	/* 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	214	* 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	215	* 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	216	* are not equal - just if it has been identified, the been_applied
218	* flags lose any meaning.	217	* flags lose any meaning.
219	*/	218	*/
220	if (QUERY_FLAG (ob1, FLAG_IDENTIFIED))	219	if (QUERY_FLAG (ob1, FLAG_IDENTIFIED))
221	SET_FLAG (ob1, FLAG_BEEN_APPLIED);	220	SET_FLAG (ob1, FLAG_BEEN_APPLIED);
222		221
223	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))	222	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))
224	SET_FLAG (ob2, FLAG_BEEN_APPLIED);	223	SET_FLAG (ob2, FLAG_BEEN_APPLIED);
225		224
226	if ((ob1->flag ^ ob2->flag).reset (FLAG_INV_LOCKED).reset (FLAG_CLIENT_SENT).any ()	225	if (ob1->arch->name != ob2->arch->name
227	|| ob1->arch != ob2->arch
228	|| ob1->name != ob2->name	226	|| ob1->name != ob2->name
229	|| ob1->title != ob2->title	227	|| ob1->title != ob2->title
230	|| ob1->msg != ob2->msg	228	|| ob1->msg != ob2->msg
231	|| ob1->weight != ob2->weight	229	|| 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	230	|| ob1->attacktype != ob2->attacktype
235	|| ob1->magic != ob2->magic	231	|| ob1->magic != ob2->magic
236	|| ob1->slaying != ob2->slaying	232	|| ob1->slaying != ob2->slaying
237	|| ob1->skill != ob2->skill	233	|| ob1->skill != ob2->skill
238	|| ob1->value != ob2->value	234	|| ob1->value != ob2->value
…		…
245	|| ob1->move_block != ob2->move_block	241	|| ob1->move_block != ob2->move_block
246	|| ob1->move_allow != ob2->move_allow	242	|| ob1->move_allow != ob2->move_allow
247	|| ob1->move_on != ob2->move_on	243	|| ob1->move_on != ob2->move_on
248	|| ob1->move_off != ob2->move_off	244	|| ob1->move_off != ob2->move_off
249	|| ob1->move_slow != ob2->move_slow	245	|| ob1->move_slow != ob2->move_slow
250	|| ob1->move_slow_penalty != ob2->move_slow_penalty)	246	|| ob1->move_slow_penalty != ob2->move_slow_penalty
		247	|| memcmp (&ob1->resist, &ob2->resist, sizeof (ob1->resist))
		248	|| memcmp (&ob1->stats , &ob2->stats , sizeof (ob1->stats)))
251	return 0;	249	return 0;
252		250
		251	if ((ob1->flag ^ ob2->flag)
		252	.reset (FLAG_INV_LOCKED)
		253	.reset (FLAG_CLIENT_SENT)
		254	.reset (FLAG_REMOVED)
		255	.any ())
		256	return 0;
		257
253	/* This is really a spellbook check - really, we should	258	/* This is really a spellbook check - we should in general
254	* check all objects in the inventory.	259	* not merge objects with real inventories, as splitting them
		260	* is hard.
255	*/	261	*/
256	if (ob1->inv || ob2->inv)	262	if (ob1->inv || ob2->inv)
257	{	263	{
258	/* if one object has inventory but the other doesn't, not equiv */	264	if (!(ob1->inv && ob2->inv))
259	if ((ob1->inv && !ob2->inv) || (ob2->inv && !ob1->inv))	265	return 0; /* inventories differ in length */
260	return 0;
261		266
262	/* Now check to see if the two inventory objects could merge */	267	if (ob1->inv->below || ob2->inv->below)
		268	return 0; /* more than one object in inv */
		269
263	if (!object::can_merge (ob1->inv, ob2->inv))	270	if (!object::can_merge (ob1->inv, ob2->inv))
264	return 0;	271	return 0; /* inventory objects differ */
265		272
266	/* inventory ok - still need to check rest of this object to see	273	/* inventory ok - still need to check rest of this object to see
267	* if it is valid.	274	* if it is valid.
268	*/	275	*/
269	}	276	}
…		…
277		284
278	/* Note sure why the following is the case - either the object has to	285	/* 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	286	* be animated or have a very low speed. Is this an attempted monster
280	* check?	287	* check?
281	*/	288	*/
282	if (!QUERY_FLAG (ob1, FLAG_ANIMATE) && FABS ((ob1)->speed) > MIN_ACTIVE_SPEED)	289	if (!QUERY_FLAG (ob1, FLAG_ANIMATE) && ob1->has_active_speed ())
283	return 0;	290	return 0;
284		291
285	switch (ob1->type)	292	switch (ob1->type)
286	{	293	{
287	case SCROLL:	294	case SCROLL:
288	if (ob1->level != ob2->level)	295	if (ob1->level != ob2->level)
289	return 0;	296	return 0;
290	break;	297	break;
291	}	298	}
292		299
293	if (ob1->key_values != NULL || ob2->key_values != NULL)	300	if (ob1->key_values || ob2->key_values)
294	{	301	{
295	/* At least one of these has key_values. */	302	/* At least one of these has key_values. */
296	if ((ob1->key_values == NULL) != (ob2->key_values == NULL))	303	if ((!ob1->key_values) != (!ob2->key_values))
297	/* One has fields, but the other one doesn't. */	304	return 0; /* One has fields, but the other one doesn't. */
		305
		306	if (!compare_ob_value_lists (ob1, ob2))
298	return 0;	307	return 0;
299	else if (!compare_ob_value_lists (ob1, ob2))
300	return 0;
301	}	308	}
302		309
303	//TODO: generate an event or call into perl for additional checks
304	if (ob1->self || ob2->self)	310	if (ob1->self || ob2->self)
305	{	311	{
306	ob1->optimise ();	312	ob1->optimise ();
307	ob2->optimise ();	313	ob2->optimise ();
308		314
309	if (ob1->self || ob2->self)	315	if (ob1->self || ob2->self)
		316	{
		317	int k1 = ob1->self ? HvTOTALKEYS (ob1->self) : 0;
		318	int k2 = ob2->self ? HvTOTALKEYS (ob2->self) : 0;
		319
		320	if (k1 != k2)
310	return 0;	321	return 0;
		322
		323	if (k1 == 0)
		324	return 1;
		325
		326	if (!cfperl_can_merge (ob1, ob2))
		327	return 0;
		328	}
311	}	329	}
312		330
313	/* Everything passes, must be OK. */	331	/* Everything passes, must be OK. */
314	return 1;	332	return 1;
315	}	333	}
316		334
		335	// find player who can see this object
		336	object *
		337	object::visible_to () const
		338	{
		339	if (client_visible () && !flag [FLAG_REMOVED])
		340	{
		341	// see if we are in a container of sorts
		342	if (env)
		343	{
		344	// the player inventory itself is always visible
		345	if (env->type == PLAYER)
		346	return env;
		347
		348	// else a player could have our env open
		349	object *envest = env->outer_env ();
		350
		351	// the player itself is always on a map, so we will find him here
		352	// even if our inv is in a player.
		353	if (envest->is_on_map ())
		354	if (object *pl = envest->ms ().player ())
		355	if (pl->container == env)
		356	return pl;
		357	}
		358	else
		359	{
		360	// maybe there is a player standing on the same mapspace
		361	// this will catch the case where "this" is a player
		362	if (object *pl = ms ().player ())
		363	if (!pl->container || this == pl->container)
		364	return pl;
		365	}
		366	}
		367
		368	return 0;
		369	}
		370
		371	// adjust weight per container type ("of holding")
		372	static sint32
		373	weight_adjust (object *op, sint32 weight)
		374	{
		375	return op->type == CONTAINER
		376	? lerp (weight, 0, 100, 0, 100 - op->stats.Str)
		377	: weight;
		378	}
		379
317	/*	380	/*
		381	* adjust_weight(object, weight) adds the specified weight to an object,
		382	* and also updates how much the environment(s) is/are carrying.
		383	*/
		384	static void
		385	adjust_weight (object *op, sint32 weight)
		386	{
		387	while (op)
		388	{
		389	weight = weight_adjust (op, weight);
		390
		391	if (!weight)
		392	return;
		393
		394	op->carrying += weight;
		395
		396	if (object *pl = op->visible_to ())
		397	if (pl != op) // player is handled lazily
		398	esrv_update_item (UPD_WEIGHT, pl, op);
		399
		400	op = op->env;
		401	}
		402	}
		403
		404	/*
318	* sum_weight() is a recursive function which calculates the weight	405	* this is a recursive function which calculates the weight
319	* an object is carrying. It goes through in figures out how much	406	* an object is carrying. It goes through op and figures out how much
320	* containers are carrying, and sums it up.	407	* containers are carrying, and sums it up.
321	*/	408	*/
322	long	409	void
323	sum_weight (object *op)	410	object::update_weight ()
324	{	411	{
325	long sum;	412	sint32 sum = 0;
326	object *inv;
327		413
328	for (sum = 0, inv = op->inv; inv != NULL; inv = inv->below)	414	for (object *op = inv; op; op = op->below)
329	{	415	{
330	if (inv->inv)	416	if (op->inv)
331	sum_weight (inv);	417	op->update_weight ();
332	sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1);	418
		419	sum += op->total_weight ();
		420	}
		421
		422	sum = weight_adjust (this, sum);
		423
		424	if (sum != carrying)
333	}	425	{
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;	426	carrying = sum;
340		427
341	return sum;	428	if (object *pl = visible_to ())
		429	if (pl != this) // player is handled lazily
		430	esrv_update_item (UPD_WEIGHT, pl, this);
		431	}
342	}	432	}
343		433
344	/**	434	/*
345	* Return the outermost environment object for a given object.	435	* Used by: Server DM commands: dumpbelow, dump. Some error messages.
346	*/	436	*/
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 *	437	char *
363	dump_object (object *op)	438	dump_object (object *op)
364	{	439	{
365	if (!op)	440	if (!op)
366	return strdup ("[NULLOBJ]");	441	return strdup ("[NULLOBJ]");
367		442
368	object_freezer freezer;	443	object_freezer freezer;
369	save_object (freezer, op, 1);	444	op->write (freezer);
370	return freezer.as_string ();	445	return freezer.as_string ();
371	}	446	}
372		447
373	/*	448	/*
374	* get_nearest_part(multi-object, object 2) returns the part of the	449	* get_nearest_part(multi-object, object 2) returns the part of the
375	* multi-object 1 which is closest to the second object.	450	* multi-object 1 which is closest to the second object.
376	* If it's not a multi-object, it is returned.	451	* If it's not a multi-object, it is returned.
377	*/	452	*/
378
379	object *	453	object *
380	get_nearest_part (object *op, const object *pl)	454	get_nearest_part (object *op, const object *pl)
381	{	455	{
382	object *tmp, *closest;	456	object *tmp, *closest;
383	int last_dist, i;	457	int last_dist, i;
384		458
385	if (op->more == NULL)	459	if (!op->more)
386	return op;	460	return op;
		461
387	for (last_dist = distance (op, pl), closest = op, tmp = op->more; tmp != NULL; tmp = tmp->more)	462	for (last_dist = distance (op, pl), closest = op, tmp = op->more;
		463	tmp;
		464	tmp = tmp->more)
388	if ((i = distance (tmp, pl)) < last_dist)	465	if ((i = distance (tmp, pl)) < last_dist)
389	closest = tmp, last_dist = i;	466	closest = tmp, last_dist = i;
		467
390	return closest;	468	return closest;
391	}	469	}
392		470
393	/*	471	/*
394	* Returns the object which has the count-variable equal to the argument.	472	* Returns the object which has the count-variable equal to the argument.
		473	* VERRRY slow.
395	*/	474	*/
396
397	object *	475	object *
398	find_object (tag_t i)	476	find_object (tag_t i)
399	{	477	{
400	for (object *op = object::first; op; op = op->next)	478	for_all_objects (op)
401	if (op->count == i)	479	if (op->count == i)
402	return op;	480	return op;
403		481
404	return 0;	482	return 0;
405	}	483	}
406		484
407	/*	485	/*
408	* Returns the first object which has a name equal to the argument.	486	* Returns the first object which has a name equal to the argument.
409	* Used only by the patch command, but not all that useful.	487	* Used only by the patch command, but not all that useful.
410	* Enables features like "patch <name-of-other-player> food 999"	488	* Enables features like "patch <name-of-other-player> food 999"
411	*/	489	*/
412
413	object *	490	object *
414	find_object_name (const char *str)	491	find_object_name (const char *str)
415	{	492	{
416	shstr_cmp str_ (str);	493	shstr_cmp str_ (str);
417	object *op;	494	object *op;
418		495
419	for (op = object::first; op != NULL; op = op->next)	496	for_all_objects (op)
420	if (op->name == str_)	497	if (op->name == str_)
421	break;	498	break;
422		499
423	return op;	500	return op;
424	}	501	}
425		502
426	void
427	free_all_object_data ()
428	{
429	LOG (llevDebug, "%d allocated objects\n", nrofallocobjects);
430	}
431
432	/*	503	/*
433	* Sets the owner and sets the skill and exp pointers to owner's current	504	* Sets the owner and sets the skill and exp pointers to owner's current
434	* skill and experience objects.	505	* skill and experience objects.
		506	* ACTUALLY NO! investigate! TODO
435	*/	507	*/
436	void	508	void
437	object::set_owner (object *owner)	509	object::set_owner (object *owner)
438	{	510	{
		511	// allow objects which own objects
439	if (!owner)	512	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)	513	while (owner->owner)
450	owner = owner->owner;	514	owner = owner->owner;
		515
		516	if (flag [FLAG_FREED])
		517	{
		518	LOG (llevError | logBacktrace, "tried to set owner of %s to %s\n", debug_desc (), owner->debug_desc ());
		519	return;
		520	}
451		521
452	this->owner = owner;	522	this->owner = owner;
		523	}
		524
		525	int
		526	object::slottype () const
		527	{
		528	if (type == SKILL)
		529	{
		530	if (IS_COMBAT_SKILL (subtype)) return slot_combat;
		531	if (IS_RANGED_SKILL (subtype)) return slot_ranged;
		532	}
		533	else
		534	{
		535	if (slot [body_combat].info) return slot_combat;
		536	if (slot [body_range ].info) return slot_ranged;
		537	}
		538
		539	return slot_none;
		540	}
		541
		542	bool
		543	object::change_weapon (object *ob)
		544	{
		545	if (current_weapon == ob)
		546	return true;
		547
		548	if (chosen_skill)
		549	chosen_skill->flag [FLAG_APPLIED] = false;
		550
		551	current_weapon = ob;
		552	chosen_skill = !ob || ob->type == SKILL ? ob : find_skill_by_name (this, ob->skill);
		553
		554	if (chosen_skill)
		555	chosen_skill->flag [FLAG_APPLIED] = true;
		556
		557	update_stats ();
		558
		559	if (ob)
		560	{
		561	// now check wether any body locations became invalid, in which case
		562	// we cannot apply the weapon at the moment.
		563	for (int i = 0; i < NUM_BODY_LOCATIONS; ++i)
		564	if (slot[i].used < 0)
		565	{
		566	current_weapon = chosen_skill = 0;
		567	update_stats ();
		568
		569	new_draw_info_format (NDI_UNIQUE, 0, this,
		570	"You try to balance all your items at once, "
		571	"but the %s is just too much for your body. "
		572	"[You need to unapply some items first.]", &ob->name);
		573	return false;
		574	}
		575
		576	//new_draw_info_format (NDI_UNIQUE, 0, this, "You switch to your %s.", &ob->name);
		577	}
		578	else
		579	;//new_draw_info_format (NDI_UNIQUE, 0, this, "You unwield your weapons.");
		580
		581	if (ob && !ob->flag [FLAG_APPLIED] && ob->type != SPELL)
		582	{
		583	LOG (llevError | logBacktrace, "%s changed to unapplied weapon %s",
		584	&name, ob->debug_desc ());
		585	return false;
		586	}
		587
		588	return true;
453	}	589	}
454		590
455	/* Zero the key_values on op, decrementing the shared-string	591	/* Zero the key_values on op, decrementing the shared-string
456	* refcounts and freeing the links.	592	* refcounts and freeing the links.
457	*/	593	*/
458	static void	594	static void
459	free_key_values (object *op)	595	free_key_values (object *op)
460	{	596	{
461	for (key_value *i = op->key_values; i != 0;)	597	for (key_value *i = op->key_values; i; )
462	{	598	{
463	key_value *next = i->next;	599	key_value *next = i->next;
464	delete i;	600	delete i;
465		601
466	i = next;	602	i = next;
467	}	603	}
468		604
469	op->key_values = 0;	605	op->key_values = 0;
470	}	606	}
471		607
472	/*	608	object &
473	* copy_to first frees everything allocated by the dst object,	609	object::operator =(const object &src)
474	* and then copies the contents of itself into the second
475	* object, allocating what needs to be allocated. Basically, any
476	* data that is malloc'd needs to be re-malloc/copied. Otherwise,
477	* if the first object is freed, the pointers in the new object
478	* will point at garbage.
479	*/
480	void
481	object::copy_to (object *dst)
482	{	610	{
483	bool is_freed = QUERY_FLAG (dst, FLAG_FREED);	611	bool is_freed = flag [FLAG_FREED];
484	bool is_removed = QUERY_FLAG (dst, FLAG_REMOVED);	612	bool is_removed = flag [FLAG_REMOVED];
485		613
486	*(object_copy *)dst = *this;	614	*(object_copy *)this = src;
487		615
488	if (is_freed)	616	flag [FLAG_FREED] = is_freed;
489	SET_FLAG (dst, FLAG_FREED);	617	flag [FLAG_REMOVED] = is_removed;
490
491	if (is_removed)
492	SET_FLAG (dst, FLAG_REMOVED);
493
494	if (speed < 0)
495	dst->speed_left = speed_left - RANDOM () % 200 / 100.0;
496		618
497	/* Copy over key_values, if any. */	619	/* Copy over key_values, if any. */
498	if (key_values)	620	if (src.key_values)
499	{	621	{
500	key_value *tail = 0;	622	key_value *tail = 0;
501	key_value *i;
502
503	dst->key_values = 0;	623	key_values = 0;
504		624
505	for (i = key_values; i; i = i->next)	625	for (key_value *i = src.key_values; i; i = i->next)
506	{	626	{
507	key_value *new_link = new key_value;	627	key_value *new_link = new key_value;
508		628
509	new_link->next = 0;	629	new_link->next = 0;
510	new_link->key = i->key;	630	new_link->key = i->key;
511	new_link->value = i->value;	631	new_link->value = i->value;
512		632
513	/* Try and be clever here, too. */	633	/* Try and be clever here, too. */
514	if (!dst->key_values)	634	if (!key_values)
515	{	635	{
516	dst->key_values = new_link;	636	key_values = new_link;
517	tail = new_link;	637	tail = new_link;
518	}	638	}
519	else	639	else
520	{	640	{
521	tail->next = new_link;	641	tail->next = new_link;
522	tail = new_link;	642	tail = new_link;
523	}	643	}
524	}	644	}
525	}	645	}
		646	}
526		647
527	update_ob_speed (dst);	648	/*
		649	* copy_to first frees everything allocated by the dst object,
		650	* and then copies the contents of itself into the second
		651	* object, allocating what needs to be allocated. Basically, any
		652	* data that is malloc'd needs to be re-malloc/copied. Otherwise,
		653	* if the first object is freed, the pointers in the new object
		654	* will point at garbage.
		655	*/
		656	void
		657	object::copy_to (object *dst)
		658	{
		659	*dst = *this;
		660
		661	if (speed < 0)
		662	dst->speed_left -= rndm ();
		663
		664	dst->set_speed (dst->speed);
		665	}
		666
		667	void
		668	object::instantiate ()
		669	{
		670	if (!uuid.seq) // HACK
		671	uuid = UUID::gen ();
		672
		673	speed_left = -0.1f;
		674	/* copy the body_info to the body_used - this is only really
		675	* need for monsters, but doesn't hurt to do it for everything.
		676	* by doing so, when a monster is created, it has good starting
		677	* values for the body_used info, so when items are created
		678	* for it, they can be properly equipped.
		679	*/
		680	for (int i = NUM_BODY_LOCATIONS; i--; )
		681	slot[i].used = slot[i].info;
		682
		683	attachable::instantiate ();
528	}	684	}
529		685
530	object *	686	object *
531	object::clone ()	687	object::clone ()
532	{	688	{
…		…
538	/*	694	/*
539	* If an object with the IS_TURNABLE() flag needs to be turned due	695	* If an object with the IS_TURNABLE() flag needs to be turned due
540	* to the closest player being on the other side, this function can	696	* to the closest player being on the other side, this function can
541	* be called to update the face variable, _and_ how it looks on the map.	697	* be called to update the face variable, _and_ how it looks on the map.
542	*/	698	*/
543
544	void	699	void
545	update_turn_face (object *op)	700	update_turn_face (object *op)
546	{	701	{
547	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || op->arch == NULL)	702	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || !op->arch)
548	return;	703	return;
		704
549	SET_ANIMATION (op, op->direction);	705	SET_ANIMATION (op, op->direction);
550	update_object (op, UP_OBJ_FACE);	706	update_object (op, UP_OBJ_FACE);
551	}	707	}
552		708
553	/*	709	/*
554	* Updates the speed of an object. If the speed changes from 0 to another	710	* Updates the speed of an object. If the speed changes from 0 to another
555	* value, or vice versa, then add/remove the object from the active list.	711	* value, or vice versa, then add/remove the object from the active list.
556	* This function needs to be called whenever the speed of an object changes.	712	* This function needs to be called whenever the speed of an object changes.
557	*/	713	*/
558	void	714	void
559	update_ob_speed (object *op)	715	object::set_speed (float speed)
560	{	716	{
561	extern int arch_init;	717	if (flag [FLAG_FREED] && speed)
562
563	/* No reason putting the archetypes objects on the speed list,
564	* since they never really need to be updated.
565	*/
566	if (QUERY_FLAG (op, FLAG_FREED) && op->speed)
567	{	718	{
568	LOG (llevError, "Object %s is freed but has speed.\n", &op->name);	719	LOG (llevError, "Object %s is freed but has speed.\n", &name);
569	op->speed = 0;	720	speed = 0;
570	}
571
572	if (arch_init)
573	return;
574
575	if (FABS (op->speed) > MIN_ACTIVE_SPEED)
576	{	721	}
577	/* If already on active list, don't do anything */
578	if (op->active_next || op->active_prev || op == active_objects)
579	return;
580		722
581	/* process_events() expects us to insert the object at the beginning	723	this->speed = speed;
582	* of the list. */
583	op->active_next = active_objects;
584		724
585	if (op->active_next != NULL)	725	if (has_active_speed ())
586	op->active_next->active_prev = op;	726	activate ();
587
588	active_objects = op;
589	}
590	else	727	else
591	{	728	deactivate ();
592	/* If not on the active list, nothing needs to be done */
593	if (!op->active_next && !op->active_prev && op != active_objects)
594	return;
595
596	if (op->active_prev == NULL)
597	{
598	active_objects = op->active_next;
599
600	if (op->active_next != NULL)
601	op->active_next->active_prev = NULL;
602	}
603	else
604	{
605	op->active_prev->active_next = op->active_next;
606
607	if (op->active_next)
608	op->active_next->active_prev = op->active_prev;
609	}
610
611	op->active_next = NULL;
612	op->active_prev = NULL;
613	}
614	}
615
616	/* This function removes object 'op' from the list of active
617	* objects.
618	* This should only be used for style maps or other such
619	* reference maps where you don't want an object that isn't
620	* in play chewing up cpu time getting processed.
621	* The reverse of this is to call update_ob_speed, which
622	* will do the right thing based on the speed of the object.
623	*/
624	void
625	remove_from_active_list (object *op)
626	{
627	/* If not on the active list, nothing needs to be done */
628	if (!op->active_next && !op->active_prev && op != active_objects)
629	return;
630
631	if (op->active_prev == NULL)
632	{
633	active_objects = op->active_next;
634	if (op->active_next != NULL)
635	op->active_next->active_prev = NULL;
636	}
637	else
638	{
639	op->active_prev->active_next = op->active_next;
640	if (op->active_next)
641	op->active_next->active_prev = op->active_prev;
642	}
643	op->active_next = NULL;
644	op->active_prev = NULL;
645	}	729	}
646		730
647	/*	731	/*
648	* update_object() updates the the map.	732	* update_object() updates the the map.
649	* It takes into account invisible objects (and represent squares covered	733	* It takes into account invisible objects (and represent squares covered
…		…
662	* UP_OBJ_FACE: only the objects face has changed.	746	* UP_OBJ_FACE: only the objects face has changed.
663	*/	747	*/
664	void	748	void
665	update_object (object *op, int action)	749	update_object (object *op, int action)
666	{	750	{
667	MoveType move_on, move_off, move_block, move_slow;	751	if (!op)
668
669	if (op == NULL)
670	{	752	{
671	/* this should never happen */	753	/* this should never happen */
672	LOG (llevDebug, "update_object() called for NULL object.\n");	754	LOG (llevError | logBacktrace, "update_object() called for NULL object.\n");
673	return;	755	return;
674	}	756	}
675		757
676	if (op->env)	758	if (!op->is_on_map ())
677	{	759	{
678	/* Animation is currently handled by client, so nothing	760	/* Animation is currently handled by client, so nothing
679	* to do in this case.	761	* to do in this case.
680	*/	762	*/
681	return;	763	return;
682	}	764	}
683
684	/* If the map is saving, don't do anything as everything is
685	* going to get freed anyways.
686	*/
687	if (!op->map || op->map->in_memory == MAP_SAVING)
688	return;
689		765
690	/* make sure the object is within map boundaries */	766	/* make sure the object is within map boundaries */
691	if (op->x < 0 || op->x >= op->map->width || op->y < 0 || op->y >= op->map->height)	767	if (op->x < 0 || op->x >= op->map->width || op->y < 0 || op->y >= op->map->height)
692	{	768	{
693	LOG (llevError, "update_object() called for object out of map!\n");	769	LOG (llevError, "update_object() called for object out of map!\n");
…		…
697	return;	773	return;
698	}	774	}
699		775
700	mapspace &m = op->ms ();	776	mapspace &m = op->ms ();
701		777
702	if (m.flags_ & P_NEED_UPDATE)	778	if (!(m.flags_ & P_UPTODATE))
703	/* nop */;	779	/* nop */;
704	else if (action == UP_OBJ_INSERT)	780	else if (action == UP_OBJ_INSERT)
705	{	781	{
706	// this is likely overkill, TODO: revisit (schmorp)	782	// this is likely overkill, TODO: revisit (schmorp)
707	if ((QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(m.flags_ & P_BLOCKSVIEW))	783	if ((QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(m.flags_ & P_BLOCKSVIEW))
…		…
716	/* This isn't perfect, but I don't expect a lot of objects to	792	/* This isn't perfect, but I don't expect a lot of objects to
717	* to have move_allow right now.	793	* to have move_allow right now.
718	*/	794	*/
719	|| ((m.move_block | op->move_block) & ~op->move_allow) != m.move_block	795	|| ((m.move_block | op->move_block) & ~op->move_allow) != m.move_block
720	|| 1) // the above is not strong enough a test to skip updating. los maybe? TODO (Schmorp)	796	|| 1) // the above is not strong enough a test to skip updating. los maybe? TODO (Schmorp)
721	m.flags_ = P_NEED_UPDATE;	797	m.flags_ = 0;
722	}	798	}
723	/* if the object is being removed, we can't make intelligent	799	/* if the object is being removed, we can't make intelligent
724	* decisions, because remove_ob can't really pass the object	800	* decisions, because remove_ob can't really pass the object
725	* that is being removed.	801	* that is being removed.
726	*/	802	*/
727	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)	803	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)
728	m.flags_ = P_NEED_UPDATE;	804	m.flags_ = 0;
729	else if (action == UP_OBJ_FACE)	805	else if (action == UP_OBJ_FACE)
730	/* Nothing to do for that case */ ;	806	/* Nothing to do for that case */ ;
731	else	807	else
732	LOG (llevError, "update_object called with invalid action: %d\n", action);	808	LOG (llevError, "update_object called with invalid action: %d\n", action);
733		809
734	if (op->more)	810	if (op->more)
735	update_object (op->more, action);	811	update_object (op->more, action);
736	}	812	}
737		813
738	object::vector object::objects; // not yet used
739	object *object::first;
740
741	object::object ()	814	object::object ()
742	{	815	{
743	SET_FLAG (this, FLAG_REMOVED);	816	SET_FLAG (this, FLAG_REMOVED);
744		817
745	expmul = 1.0;	818	expmul = 1.0;
746	face = blank_face;	819	face = blank_face;
747	}	820	}
748		821
749	object::~object ()	822	object::~object ()
750	{	823	{
		824	unlink ();
		825
751	free_key_values (this);	826	free_key_values (this);
752	}	827	}
753		828
		829	static int object_count;
		830
754	void object::link ()	831	void object::link ()
755	{	832	{
		833	assert (!index);//D
		834	uuid = UUID::gen ();
756	count = ++ob_count;	835	count = ++object_count;
757	uuid = gen_uuid ();
758		836
759	prev = 0;	837	refcnt_inc ();
760	next = object::first;	838	objects.insert (this);
761
762	if (object::first)
763	object::first->prev = this;
764
765	object::first = this;
766	}	839	}
767		840
768	void object::unlink ()	841	void object::unlink ()
769	{	842	{
770	if (this == object::first)	843	if (!index)
771	object::first = next;
772
773	/* Remove this object from the list of used objects */
774	if (prev) prev->next = next;
775	if (next) next->prev = prev;
776
777	prev = 0;
778	next = 0;
779	}
780
781	object *object::create ()
782	{
783	object *op = new object;
784	op->link ();
785	return op;	844	return;
786	}
787		845
788	/*	846	objects.erase (this);
789	* free_object() frees everything allocated by an object, removes	847	refcnt_dec ();
790	* it from the list of used objects, and puts it on the list of	848	}
791	* free objects. The IS_FREED() flag is set in the object.	849
792	* The object must have been removed by remove_ob() first for
793	* this function to succeed.
794	*
795	* If destroy_inventory is set, free inventory as well. Else drop items in
796	* inventory to the ground.
797	*/
798	void	850	void
799	object::do_destroy ()	851	object::activate ()
800	{	852	{
801	attachable::do_destroy ();	853	/* If already on active list, don't do anything */
802		854	if (active)
803	if (flag [FLAG_IS_LINKED])
804	remove_button_link (this);
805
806	if (flag [FLAG_FRIENDLY])
807	remove_friendly_object (this);
808
809	if (!flag [FLAG_REMOVED])
810	remove ();
811
812	if (flag [FLAG_FREED])
813	return;	855	return;
814		856
815	flag [FLAG_FREED] = 1;	857	if (has_active_speed ())
		858	actives.insert (this);
		859	}
816		860
817	// hack to ensure that freed objects still have a valid map	861	void
818	{	862	object::activate_recursive ()
819	static maptile *freed_map; // freed objects are moved here to avoid crashes	863	{
		864	activate ();
820		865
821	if (!freed_map)	866	for (object *op = inv; op; op = op->below)
		867	op->activate_recursive ();
		868	}
		869
		870	/* This function removes object 'op' from the list of active
		871	* objects.
		872	* This should only be used for style maps or other such
		873	* reference maps where you don't want an object that isn't
		874	* in play chewing up cpu time getting processed.
		875	* The reverse of this is to call update_ob_speed, which
		876	* will do the right thing based on the speed of the object.
		877	*/
		878	void
		879	object::deactivate ()
		880	{
		881	/* If not on the active list, nothing needs to be done */
		882	if (!active)
		883	return;
		884
		885	actives.erase (this);
		886	}
		887
		888	void
		889	object::deactivate_recursive ()
		890	{
		891	for (object *op = inv; op; op = op->below)
		892	op->deactivate_recursive ();
		893
		894	deactivate ();
		895	}
		896
		897	void
		898	object::set_flag_inv (int flag, int value)
		899	{
		900	for (object *op = inv; op; op = op->below)
822	{	901	{
823	freed_map = new maptile;	902	op->flag [flag] = value;
824		903	op->set_flag_inv (flag, value);
825	freed_map->name = "/internal/freed_objects_map";
826	freed_map->width = 3;
827	freed_map->height = 3;
828
829	freed_map->allocate ();
830	}	904	}
831
832	map = freed_map;
833	x = 1;
834	y = 1;
835	}
836
837	more = 0;
838	head = 0;
839	inv = 0;
840
841	// clear those pointers that likely might have circular references to us
842	owner = 0;
843	enemy = 0;
844	attacked_by = 0;
845
846	// only relevant for players(?), but make sure of it anyways
847	contr = 0;
848
849	/* Remove object from the active list */
850	speed = 0;
851	update_ob_speed (this);
852
853	unlink ();
854	}	905	}
855		906
856	/*	907	/*
857	* Remove and free all objects in the inventory of the given object.	908	* Remove and free all objects in the inventory of the given object.
858	* object.c ?	909	* object.c ?
859	*/	910	*/
860	void	911	void
861	object::destroy_inv (bool drop_to_ground)	912	object::destroy_inv (bool drop_to_ground)
862	{	913	{
		914	// need to check first, because the checks below might segfault
		915	// as we might be on an invalid mapspace and crossfire code
		916	// is too buggy to ensure that the inventory is empty.
		917	// corollary: if you create arrows etc. with stuff in its inventory,
		918	// cf will crash below with off-map x and y
863	if (!inv)	919	if (!inv)
864	return;	920	return;
865		921
866	/* Only if the space blocks everything do we not process -	922	/* Only if the space blocks everything do we not process -
867	* if some form of movement is allowed, let objects	923	* if some form of movement is allowed, let objects
868	* drop on that space.	924	* drop on that space.
869	*/	925	*/
870	if (!drop_to_ground || !map || map->in_memory != MAP_IN_MEMORY || GET_MAP_MOVE_BLOCK (map, x, y) == MOVE_ALL)	926	if (!drop_to_ground
		927	|| !map
		928	|| map->in_memory != MAP_ACTIVE
		929	|| map->nodrop
		930	|| ms ().move_block == MOVE_ALL)
871	{	931	{
872	while (inv)	932	while (inv)
873	{	933	{
874	inv->destroy_inv (drop_to_ground);	934	inv->destroy_inv (false);
875	inv->destroy ();	935	inv->destroy ();
876	}	936	}
877	}	937	}
878	else	938	else
879	{ /* Put objects in inventory onto this space */	939	{ /* Put objects in inventory onto this space */
…		…
883		943
884	if (op->flag [FLAG_STARTEQUIP]	944	if (op->flag [FLAG_STARTEQUIP]
885	|| op->flag [FLAG_NO_DROP]	945	|| op->flag [FLAG_NO_DROP]
886	|| op->type == RUNE	946	|| op->type == RUNE
887	|| op->type == TRAP	947	|| op->type == TRAP
888	|| op->flag [FLAG_IS_A_TEMPLATE])	948	|| op->flag [FLAG_IS_A_TEMPLATE]
		949	|| op->flag [FLAG_DESTROY_ON_DEATH])
889	op->destroy ();	950	op->destroy (true);
890	else	951	else
891	{	952	map->insert (op, x, y);
892	op->remove ();
893	op->x = x;
894	op->y = y;
895	insert_ob_in_map (op, map, 0, 0); /* Insert in same map as the envir */
896	}
897	}	953	}
898	}	954	}
		955	}
		956
		957	object *object::create ()
		958	{
		959	object *op = new object;
		960	op->link ();
		961	return op;
		962	}
		963
		964	static struct freed_map : maptile
		965	{
		966	freed_map ()
		967	{
		968	path = "<freed objects map>";
		969	name = "/internal/freed_objects_map";
		970	width = 3;
		971	height = 3;
		972	nodrop = 1;
		973
		974	alloc ();
		975	in_memory = MAP_ACTIVE;
		976	}
		977	} freed_map; // freed objects are moved here to avoid crashes
		978
		979	void
		980	object::do_destroy ()
		981	{
		982	if (flag [FLAG_IS_LINKED])
		983	remove_button_link (this);
		984
		985	if (flag [FLAG_FRIENDLY])
		986	remove_friendly_object (this);
		987
		988	remove ();
		989
		990	attachable::do_destroy ();
		991
		992	deactivate ();
		993	unlink ();
		994
		995	flag [FLAG_FREED] = 1;
		996
		997	// hack to ensure that freed objects still have a valid map
		998	map = &freed_map;
		999	x = 1;
		1000	y = 1;
		1001
		1002	if (more)
		1003	{
		1004	more->destroy ();
		1005	more = 0;
		1006	}
		1007
		1008	head = 0;
		1009
		1010	// clear those pointers that likely might cause circular references
		1011	owner = 0;
		1012	enemy = 0;
		1013	attacked_by = 0;
		1014	current_weapon = 0;
899	}	1015	}
900		1016
901	void	1017	void
902	object::destroy (bool destroy_inventory)	1018	object::destroy (bool destroy_inventory)
903	{	1019	{
904	if (destroyed ())	1020	if (destroyed ())
905	return;	1021	return;
906		1022
907	if (more)	1023	if (!is_head () && !head->destroyed ())
908	{	1024	{
909	//TODO: non-head objects must not have inventory	1025	LOG (llevError | logBacktrace, "tried to destroy the tail of an object");
910	more->destroy (destroy_inventory);	1026	head->destroy (destroy_inventory);
911	more = 0;	1027	return;
912	}	1028	}
913		1029
914	if (destroy_inventory)	1030	destroy_inv (!destroy_inventory);
915	destroy_inv (true);	1031
		1032	if (is_head ())
		1033	if (sound_destroy)
		1034	play_sound (sound_destroy);
		1035	else if (flag [FLAG_MONSTER])
		1036	play_sound (sound_find ("monster_destroy")); // quick hack, too lazy to create a generic mechanism
916		1037
917	attachable::destroy ();	1038	attachable::destroy ();
918	}
919
920	/*
921	* sub_weight() recursively (outwards) subtracts a number from the
922	* weight of an object (and what is carried by it's environment(s)).
923	*/
924	void
925	sub_weight (object *op, signed long weight)
926	{
927	while (op != NULL)
928	{
929	if (op->type == CONTAINER)
930	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
931
932	op->carrying -= weight;
933	op = op->env;
934	}
935	}	1039	}
936		1040
937	/* op->remove ():	1041	/* op->remove ():
938	* This function removes the object op from the linked list of objects	1042	* This function removes the object op from the linked list of objects
939	* which it is currently tied to. When this function is done, the	1043	* which it is currently tied to. When this function is done, the
940	* object will have no environment. If the object previously had an	1044	* object will have no environment. If the object previously had an
941	* environment, the x and y coordinates will be updated to	1045	* environment, the x and y coordinates will be updated to
942	* the previous environment.	1046	* the previous environment.
943	* Beware: This function is called from the editor as well!
944	*/	1047	*/
945	void	1048	void
946	object::remove ()	1049	object::do_remove ()
947	{	1050	{
948	object *tmp, *last = 0;	1051	object *tmp, *last = 0;
949	object *otmp;	1052	object *otmp;
950		1053
951	if (QUERY_FLAG (this, FLAG_REMOVED))	1054	if (flag [FLAG_REMOVED])
952	return;	1055	return;
953		1056
954	SET_FLAG (this, FLAG_REMOVED);
955	INVOKE_OBJECT (REMOVE, this);	1057	INVOKE_OBJECT (REMOVE, this);
		1058
		1059	flag [FLAG_REMOVED] = true;
956		1060
957	if (more)	1061	if (more)
958	more->remove ();	1062	more->remove ();
959		1063
960	/*	1064	/*
961	* In this case, the object to be removed is in someones	1065	* In this case, the object to be removed is in someones
962	* inventory.	1066	* inventory.
963	*/	1067	*/
964	if (env)	1068	if (env)
965	{	1069	{
		1070	flag [FLAG_REMOVED] = false; // hack around the issue of visible_to checking flag_removed
		1071	if (object *pl = visible_to ())
		1072	esrv_del_item (pl->contr, count);
		1073	flag [FLAG_REMOVED] = true; // hack around the issue of visible_to checking flag_removed
		1074
		1075	adjust_weight (env, -total_weight ());
		1076
		1077	*(above ? &above->below : &env->inv) = below;
		1078
966	if (nrof)	1079	if (below)
967	sub_weight (env, weight * nrof);	1080	below->above = above;
968	else	1081
969	sub_weight (env, weight + carrying);	1082	/* we set up values so that it could be inserted into
		1083	* the map, but we don't actually do that - it is up
		1084	* to the caller to decide what we want to do.
		1085	*/
		1086	map = env->map;
		1087	x = env->x;
		1088	y = env->y;
		1089	above = 0;
		1090	below = 0;
		1091	env = 0;
970		1092
971	/* NO_FIX_PLAYER is set when a great many changes are being	1093	/* NO_FIX_PLAYER is set when a great many changes are being
972	* made to players inventory. If set, avoiding the call	1094	* made to players inventory. If set, avoiding the call
973	* to save cpu time.	1095	* to save cpu time.
974	*/	1096	*/
975	if ((otmp = in_player ()) && otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))	1097	if ((otmp = in_player ()) && otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
976	otmp->update_stats ();	1098	otmp->update_stats ();
977
978	if (above != NULL)
979	above->below = below;
980	else
981	env->inv = below;
982
983	if (below != NULL)
984	below->above = above;
985
986	/* we set up values so that it could be inserted into
987	* the map, but we don't actually do that - it is up
988	* to the caller to decide what we want to do.
989	*/
990	x = env->x, y = env->y;
991	map = env->map;
992	above = 0, below = 0;
993	env = 0;
994	}	1099	}
995	else if (map)	1100	else if (map)
996	{	1101	{
997	/* Re did the following section of code - it looks like it had	1102	map->dirty = true;
998	* lots of logic for things we no longer care about	1103	mapspace &ms = this->ms ();
		1104
		1105	if (object *pl = ms.player ())
999	*/	1106	{
		1107	if (type == PLAYER) // this == pl(!)
		1108	{
		1109	// leaving a spot always closes any open container on the ground
		1110	if (container && !container->env)
		1111	// this causes spurious floorbox updates, but it ensures
		1112	// that the CLOSE event is being sent.
		1113	close_container ();
		1114
		1115	--map->players;
		1116	map->touch ();
		1117	}
		1118	else if (pl->container == this)
		1119	{
		1120	// removing a container should close it
		1121	close_container ();
		1122	}
		1123
		1124	esrv_del_item (pl->contr, count);
		1125	}
1000		1126
1001	/* link the object above us */	1127	/* link the object above us */
1002	if (above)	1128	if (above)
1003	above->below = below;	1129	above->below = below;
1004	else	1130	else
1005	map->at (x, y).top = below; /* we were top, set new top */	1131	ms.top = below; /* we were top, set new top */
1006		1132
1007	/* Relink the object below us, if there is one */	1133	/* Relink the object below us, if there is one */
1008	if (below)	1134	if (below)
1009	below->above = above;	1135	below->above = above;
1010	else	1136	else
…		…
1012	/* Nothing below, which means we need to relink map object for this space	1138	/* Nothing below, which means we need to relink map object for this space
1013	* use translated coordinates in case some oddness with map tiling is	1139	* use translated coordinates in case some oddness with map tiling is
1014	* evident	1140	* evident
1015	*/	1141	*/
1016	if (GET_MAP_OB (map, x, y) != this)	1142	if (GET_MAP_OB (map, x, y) != this)
1017	{
1018	char *dump = dump_object (this);
1019	LOG (llevError,
1020	"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);	1143	LOG (llevError, "remove_ob: GET_MAP_OB does not return object to be removed even though it appears to be on the bottom? %s\n", debug_desc ());
1021	free (dump);
1022	dump = dump_object (GET_MAP_OB (map, x, y));
1023	LOG (llevError, "%s\n", dump);
1024	free (dump);
1025	}
1026		1144
1027	map->at (x, y).bot = above; /* goes on above it. */	1145	ms.bot = above; /* goes on above it. */
1028	}	1146	}
1029		1147
1030	above = 0;	1148	above = 0;
1031	below = 0;	1149	below = 0;
1032		1150
1033	if (map->in_memory == MAP_SAVING)	1151	if (map->in_memory == MAP_SAVING)
1034	return;	1152	return;
1035		1153
1036	int check_walk_off = !flag [FLAG_NO_APPLY];	1154	int check_walk_off = !flag [FLAG_NO_APPLY];
1037		1155
		1156	if (object *pl = ms.player ())
		1157	{
		1158	if (pl->container == this)
		1159	/* If a container that the player is currently using somehow gets
		1160	* removed (most likely destroyed), update the player view
		1161	* appropriately.
		1162	*/
		1163	pl->close_container ();
		1164
		1165	//TODO: the floorbox prev/next might need updating
		1166	esrv_del_item (pl->contr, count);
		1167	}
		1168
1038	for (tmp = GET_MAP_OB (map, x, y); tmp; tmp = tmp->above)	1169	for (tmp = ms.bot; tmp; tmp = tmp->above)
1039	{	1170	{
1040	/* No point updating the players look faces if he is the object	1171	/* No point updating the players look faces if he is the object
1041	* being removed.	1172	* being removed.
1042	*/	1173	*/
1043		1174
1044	if (tmp->type == PLAYER && tmp != this)
1045	{
1046	/* If a container that the player is currently using somehow gets
1047	* removed (most likely destroyed), update the player view
1048	* appropriately.
1049	*/
1050	if (tmp->container == this)
1051	{
1052	flag [FLAG_APPLIED] = 0;
1053	tmp->container = 0;
1054	}
1055
1056	if (tmp->contr->ns)
1057	tmp->contr->ns->floorbox_update ();
1058	}
1059
1060	/* See if player moving off should effect something */	1175	/* See if object moving off should effect something */
1061	if (check_walk_off	1176	if (check_walk_off
1062	&& ((move_type & tmp->move_off)	1177	&& ((move_type & tmp->move_off)
1063	&& (move_type & ~tmp->move_off & ~tmp->move_block) == 0))	1178	&& (move_type & ~tmp->move_off & ~tmp->move_block) == 0))
1064	{	1179	{
1065	move_apply (tmp, this, 0);	1180	move_apply (tmp, this, 0);
1066		1181
1067	if (destroyed ())	1182	if (destroyed ())
1068	LOG (llevError, "BUG: remove_ob(): name %s, destroyed leaving object\n", tmp->debug_desc ());	1183	LOG (llevError, "BUG: remove_ob(): name %s, destroyed leaving object\n", tmp->debug_desc ());
1069	}	1184	}
1070		1185
1071	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */
1072
1073	if (tmp->above == tmp)
1074	tmp->above = 0;
1075
1076	last = tmp;	1186	last = tmp;
1077	}	1187	}
1078		1188
1079	/* last == NULL of there are no objects on this space */	1189	/* last == NULL if there are no objects on this space */
		1190	//TODO: this makes little sense, why only update the topmost object?
1080	if (!last)	1191	if (!last)
1081	map->at (x, y).flags_ = P_NEED_UPDATE;	1192	map->at (x, y).flags_ = 0;
1082	else	1193	else
1083	update_object (last, UP_OBJ_REMOVE);	1194	update_object (last, UP_OBJ_REMOVE);
1084		1195
1085	if (flag [FLAG_BLOCKSVIEW] || glow_radius)	1196	if (flag [FLAG_BLOCKSVIEW] || glow_radius)
1086	update_all_los (map, x, y);	1197	update_all_los (map, x, y);
…		…
1099	merge_ob (object *op, object *top)	1210	merge_ob (object *op, object *top)
1100	{	1211	{
1101	if (!op->nrof)	1212	if (!op->nrof)
1102	return 0;	1213	return 0;
1103		1214
1104	if (top)	1215	if (!top)
1105	for (top = op; top && top->above; top = top->above)	1216	for (top = op; top && top->above; top = top->above)
1106	;	1217	;
1107		1218
1108	for (; top; top = top->below)	1219	for (; top; top = top->below)
1109	{
1110	if (top == op)
1111	continue;
1112
1113	if (object::can_merge (op, top))	1220	if (object::can_merge (op, top))
1114	{	1221	{
1115	top->nrof += op->nrof;	1222	top->nrof += op->nrof;
1116		1223
1117	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/	1224	if (object *pl = top->visible_to ())
1118	op->weight = 0; /* Don't want any adjustements now */	1225	esrv_update_item (UPD_NROF, pl, top);
		1226
		1227	op->weight = 0; // cancel the addition above
		1228	op->carrying = 0; // must be 0 already
		1229
1119	op->destroy ();	1230	op->destroy (1);
		1231
1120	return top;	1232	return top;
1121	}	1233	}
1122	}
1123		1234
1124	return 0;	1235	return 0;
1125	}	1236	}
1126		1237
		1238	void
		1239	object::expand_tail ()
		1240	{
		1241	if (more)
		1242	return;
		1243
		1244	object *prev = this;
		1245
		1246	for (archetype *at = (archetype *)arch->more; at; at = (archetype *)at->more)
		1247	{
		1248	object *op = arch_to_object (at);
		1249
		1250	op->name = name;
		1251	op->name_pl = name_pl;
		1252	op->title = title;
		1253
		1254	op->head = this;
		1255	prev->more = op;
		1256
		1257	prev = op;
		1258	}
		1259	}
		1260
1127	/*	1261	/*
1128	* same as insert_ob_in_map except it handle separate coordinates and do a clean	1262	* same as insert_ob_in_map except it handles separate coordinates and does a clean
1129	* job preparing multi-part monsters	1263	* job preparing multi-part monsters.
1130	*/	1264	*/
1131	object *	1265	object *
1132	insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)	1266	insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)
1133	{	1267	{
1134	object *tmp;
1135
1136	if (op->head)
1137	op = op->head;
1138
1139	for (tmp = op; tmp; tmp = tmp->more)	1268	for (object *tmp = op->head_ (); tmp; tmp = tmp->more)
1140	{	1269	{
1141	tmp->x = x + tmp->arch->clone.x;	1270	tmp->x = x + tmp->arch->x;
1142	tmp->y = y + tmp->arch->clone.y;	1271	tmp->y = y + tmp->arch->y;
1143	}	1272	}
1144		1273
1145	return insert_ob_in_map (op, m, originator, flag);	1274	return insert_ob_in_map (op, m, originator, flag);
1146	}	1275	}
1147		1276
…		…
1166	* just 'op' otherwise	1295	* just 'op' otherwise
1167	*/	1296	*/
1168	object *	1297	object *
1169	insert_ob_in_map (object *op, maptile *m, object *originator, int flag)	1298	insert_ob_in_map (object *op, maptile *m, object *originator, int flag)
1170	{	1299	{
1171	object *tmp, *top, *floor = NULL;	1300	assert (!op->flag [FLAG_FREED]);
1172	sint16 x, y;
1173		1301
1174	if (QUERY_FLAG (op, FLAG_FREED))	1302	op->remove ();
1175	{
1176	LOG (llevError, "Trying to insert freed object!\n");
1177	return NULL;
1178	}
1179
1180	if (m == NULL)
1181	{
1182	char *dump = dump_object (op);
1183	LOG (llevError, "Trying to insert in null-map!\n%s\n", dump);
1184	free (dump);
1185	return op;
1186	}
1187
1188	if (out_of_map (m, op->x, op->y))
1189	{
1190	char *dump = dump_object (op);
1191	LOG (llevError, "Trying to insert object outside the map.\n%s\n", dump);
1192	#ifdef MANY_CORES
1193	/* Better to catch this here, as otherwise the next use of this object
1194	* is likely to cause a crash. Better to find out where it is getting
1195	* improperly inserted.
1196	*/
1197	abort ();
1198	#endif
1199	free (dump);
1200	return op;
1201	}
1202
1203	if (!QUERY_FLAG (op, FLAG_REMOVED))
1204	{
1205	char *dump = dump_object (op);
1206	LOG (llevError, "Trying to insert (map) inserted object.\n%s\n", dump);
1207	free (dump);
1208	return op;
1209	}
1210
1211	if (op->more)
1212	{
1213	/* The part may be on a different map. */
1214
1215	object *more = op->more;
1216
1217	/* We really need the caller to normalize coordinates - if
1218	* we set the map, that doesn't work if the location is within
1219	* a map and this is straddling an edge. So only if coordinate
1220	* is clear wrong do we normalize it.
1221	*/
1222	if (OUT_OF_REAL_MAP (more->map, more->x, more->y))
1223	more->map = get_map_from_coord (m, &more->x, &more->y);
1224	else if (!more->map)
1225	{
1226	/* For backwards compatibility - when not dealing with tiled maps,
1227	* more->map should always point to the parent.
1228	*/
1229	more->map = m;
1230	}
1231
1232	if (insert_ob_in_map (more, more->map, originator, flag) == NULL)
1233	{
1234	if (!op->head)
1235	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");
1236
1237	return 0;
1238	}
1239	}
1240
1241	CLEAR_FLAG (op, FLAG_REMOVED);
1242		1303
1243	/* Ideally, the caller figures this out. However, it complicates a lot	1304	/* Ideally, the caller figures this out. However, it complicates a lot
1244	* of areas of callers (eg, anything that uses find_free_spot would now	1305	* of areas of callers (eg, anything that uses find_free_spot would now
1245	* need extra work	1306	* need extra work
1246	*/	1307	*/
1247	op->map = get_map_from_coord (m, &op->x, &op->y);	1308	if (!xy_normalise (m, op->x, op->y))
1248	x = op->x;	1309	{
1249	y = op->y;	1310	op->destroy (1);
		1311	return 0;
		1312	}
		1313
		1314	if (object *more = op->more)
		1315	if (!insert_ob_in_map (more, m, originator, flag))
		1316	return 0;
		1317
		1318	CLEAR_FLAG (op, FLAG_REMOVED);
		1319
		1320	op->map = m;
		1321	mapspace &ms = op->ms ();
1250		1322
1251	/* this has to be done after we translate the coordinates.	1323	/* this has to be done after we translate the coordinates.
1252	*/	1324	*/
1253	if (op->nrof && !(flag & INS_NO_MERGE))	1325	if (op->nrof && !(flag & INS_NO_MERGE))
1254	for (tmp = GET_MAP_OB (op->map, x, y); tmp != NULL; tmp = tmp->above)	1326	for (object *tmp = ms.bot; tmp; tmp = tmp->above)
1255	if (object::can_merge (op, tmp))	1327	if (object::can_merge (op, tmp))
1256	{	1328	{
		1329	// TODO: we atcually want to update tmp, not op,
		1330	// but some caller surely breaks when we return tmp
		1331	// from here :/
1257	op->nrof += tmp->nrof;	1332	op->nrof += tmp->nrof;
1258	tmp->destroy ();	1333	tmp->destroy (1);
1259	}	1334	}
1260		1335
1261	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */	1336	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */
1262	CLEAR_FLAG (op, FLAG_INV_LOCKED);	1337	CLEAR_FLAG (op, FLAG_INV_LOCKED);
1263		1338
…		…
1276	op->below = originator->below;	1351	op->below = originator->below;
1277		1352
1278	if (op->below)	1353	if (op->below)
1279	op->below->above = op;	1354	op->below->above = op;
1280	else	1355	else
1281	op->ms ().bot = op;	1356	ms.bot = op;
1282		1357
1283	/* since *below* originator, no need to update top */	1358	/* since *below* originator, no need to update top */
1284	originator->below = op;	1359	originator->below = op;
1285	}	1360	}
1286	else	1361	else
1287	{	1362	{
		1363	object *top, *floor = NULL;
		1364
		1365	top = ms.bot;
		1366
1288	/* If there are other objects, then */	1367	/* If there are other objects, then */
1289	if ((!(flag & INS_MAP_LOAD)) && ((top = GET_MAP_OB (op->map, op->x, op->y)) != NULL))	1368	if (top)
1290	{	1369	{
1291	object *last = NULL;	1370	object *last = 0;
1292		1371
1293	/*	1372	/*
1294	* If there are multiple objects on this space, we do some trickier handling.	1373	* If there are multiple objects on this space, we do some trickier handling.
1295	* We've already dealt with merging if appropriate.	1374	* We've already dealt with merging if appropriate.
1296	* Generally, we want to put the new object on top. But if	1375	* Generally, we want to put the new object on top. But if
…		…
1300	* once we get to them. This reduces the need to traverse over all of	1379	* once we get to them. This reduces the need to traverse over all of
1301	* them when adding another one - this saves quite a bit of cpu time	1380	* them when adding another one - this saves quite a bit of cpu time
1302	* when lots of spells are cast in one area. Currently, it is presumed	1381	* when lots of spells are cast in one area. Currently, it is presumed
1303	* that flying non pickable objects are spell objects.	1382	* that flying non pickable objects are spell objects.
1304	*/	1383	*/
1305		1384	for (top = ms.bot; top; top = top->above)
1306	while (top != NULL)
1307	{	1385	{
1308	if (QUERY_FLAG (top, FLAG_IS_FLOOR) || QUERY_FLAG (top, FLAG_OVERLAY_FLOOR))	1386	if (QUERY_FLAG (top, FLAG_IS_FLOOR) || QUERY_FLAG (top, FLAG_OVERLAY_FLOOR))
1309	floor = top;	1387	floor = top;
1310		1388
1311	if (QUERY_FLAG (top, FLAG_NO_PICK) && (top->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (top, FLAG_IS_FLOOR))	1389	if (QUERY_FLAG (top, FLAG_NO_PICK) && (top->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (top, FLAG_IS_FLOOR))
…		…
1314	top = top->below;	1392	top = top->below;
1315	break;	1393	break;
1316	}	1394	}
1317		1395
1318	last = top;	1396	last = top;
1319	top = top->above;
1320	}	1397	}
1321		1398
1322	/* Don't want top to be NULL, so set it to the last valid object */	1399	/* Don't want top to be NULL, so set it to the last valid object */
1323	top = last;	1400	top = last;
1324		1401
…		…
1326	* looks like instead of lots of conditions here.	1403	* looks like instead of lots of conditions here.
1327	* makes things faster, and effectively the same result.	1404	* makes things faster, and effectively the same result.
1328	*/	1405	*/
1329		1406
1330	/* Have object 'fall below' other objects that block view.	1407	/* Have object 'fall below' other objects that block view.
1331	* Unless those objects are exits, type 66	1408	* Unless those objects are exits.
1332	* If INS_ON_TOP is used, don't do this processing	1409	* If INS_ON_TOP is used, don't do this processing
1333	* Need to find the object that in fact blocks view, otherwise	1410	* Need to find the object that in fact blocks view, otherwise
1334	* stacking is a bit odd.	1411	* stacking is a bit odd.
1335	*/	1412	*/
1336	if (!(flag & INS_ON_TOP) &&	1413	if (!(flag & INS_ON_TOP)
1337	(get_map_flags (op->map, 0, op->x, op->y, 0, 0) & P_BLOCKSVIEW) && (op->face && !op->face->visibility))	1414	&& ms.flags () & P_BLOCKSVIEW
		1415	&& (op->face && !faces [op->face].visibility))
1338	{	1416	{
1339	for (last = top; last != floor; last = last->below)	1417	for (last = top; last != floor; last = last->below)
1340	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))	1418	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))
1341	break;	1419	break;
		1420
1342	/* Check to see if we found the object that blocks view,	1421	/* Check to see if we found the object that blocks view,
1343	* and make sure we have a below pointer for it so that	1422	* and make sure we have a below pointer for it so that
1344	* we can get inserted below this one, which requires we	1423	* we can get inserted below this one, which requires we
1345	* set top to the object below us.	1424	* set top to the object below us.
1346	*/	1425	*/
1347	if (last && last->below && last != floor)	1426	if (last && last->below && last != floor)
1348	top = last->below;	1427	top = last->below;
1349	}	1428	}
1350	} /* If objects on this space */	1429	} /* If objects on this space */
1351		1430
1352	if (flag & INS_MAP_LOAD)
1353	top = GET_MAP_TOP (op->map, op->x, op->y);
1354
1355	if (flag & INS_ABOVE_FLOOR_ONLY)	1431	if (flag & INS_ABOVE_FLOOR_ONLY)
1356	top = floor;	1432	top = floor;
1357		1433
1358	/* Top is the object that our object (op) is going to get inserted above.	1434	/* Top is the object that our object (op) is going to get inserted above.
1359	*/	1435	*/
1360		1436
1361	/* First object on this space */	1437	/* First object on this space */
1362	if (!top)	1438	if (!top)
1363	{	1439	{
1364	op->above = GET_MAP_OB (op->map, op->x, op->y);	1440	op->above = ms.bot;
1365		1441
1366	if (op->above)	1442	if (op->above)
1367	op->above->below = op;	1443	op->above->below = op;
1368		1444
1369	op->below = NULL;	1445	op->below = 0;
1370	op->ms ().bot = op;	1446	ms.bot = op;
1371	}	1447	}
1372	else	1448	else
1373	{ /* get inserted into the stack above top */	1449	{ /* get inserted into the stack above top */
1374	op->above = top->above;	1450	op->above = top->above;
1375		1451
…		…
1378		1454
1379	op->below = top;	1455	op->below = top;
1380	top->above = op;	1456	top->above = op;
1381	}	1457	}
1382		1458
1383	if (op->above == NULL)	1459	if (!op->above)
1384	op->ms ().top = op;	1460	ms.top = op;
1385	} /* else not INS_BELOW_ORIGINATOR */	1461	} /* else not INS_BELOW_ORIGINATOR */
1386		1462
1387	if (op->type == PLAYER)	1463	if (op->type == PLAYER)
		1464	{
1388	op->contr->do_los = 1;	1465	op->contr->do_los = 1;
		1466	++op->map->players;
		1467	op->map->touch ();
		1468	}
1389		1469
1390	/* If we have a floor, we know the player, if any, will be above	1470	op->map->dirty = true;
1391	* it, so save a few ticks and start from there.	1471
1392	*/
1393	if (!(flag & INS_MAP_LOAD))
1394	if (object *pl = op->ms ().player ())	1472	if (object *pl = ms.player ())
1395	if (pl->contr->ns)	1473	//TODO: the floorbox prev/next might need updating
1396	pl->contr->ns->floorbox_update ();	1474	esrv_send_item (pl, op);
1397		1475
1398	/* If this object glows, it may affect lighting conditions that are	1476	/* If this object glows, it may affect lighting conditions that are
1399	* visible to others on this map. But update_all_los is really	1477	* visible to others on this map. But update_all_los is really
1400	* an inefficient way to do this, as it means los for all players	1478	* an inefficient way to do this, as it means los for all players
1401	* on the map will get recalculated. The players could very well	1479	* on the map will get recalculated. The players could very well
1402	* be far away from this change and not affected in any way -	1480	* be far away from this change and not affected in any way -
1403	* this should get redone to only look for players within range,	1481	* this should get redone to only look for players within range,
1404	* or just updating the P_NEED_UPDATE for spaces within this area	1482	* or just updating the P_UPTODATE for spaces within this area
1405	* of effect may be sufficient.	1483	* of effect may be sufficient.
1406	*/	1484	*/
1407	if (op->map->darkness && (op->glow_radius != 0))	1485	if (op->map->darkness && (op->glow_radius != 0))
1408	update_all_los (op->map, op->x, op->y);	1486	update_all_los (op->map, op->x, op->y);
1409		1487
…		…
1420	* blocked() and wall() work properly), and these flags are updated by	1498	* blocked() and wall() work properly), and these flags are updated by
1421	* update_object().	1499	* update_object().
1422	*/	1500	*/
1423		1501
1424	/* if this is not the head or flag has been passed, don't check walk on status */	1502	/* if this is not the head or flag has been passed, don't check walk on status */
1425	if (!(flag & INS_NO_WALK_ON) && !op->head)	1503	if (!(flag & INS_NO_WALK_ON) && op->head_ () == op)
1426	{	1504	{
1427	if (check_move_on (op, originator))	1505	if (check_move_on (op, originator))
1428	return 0;	1506	return 0;
1429		1507
1430	/* If we are a multi part object, lets work our way through the check	1508	/* If we are a multi part object, lets work our way through the check
1431	* walk on's.	1509	* walk on's.
1432	*/	1510	*/
1433	for (tmp = op->more; tmp != NULL; tmp = tmp->more)	1511	for (object *tmp = op->more; tmp; tmp = tmp->more)
1434	if (check_move_on (tmp, originator))	1512	if (check_move_on (tmp, originator))
1435	return 0;	1513	return 0;
1436	}	1514	}
1437		1515
1438	return op;	1516	return op;
…		…
1443	* op is the object to insert it under: supplies x and the map.	1521	* op is the object to insert it under: supplies x and the map.
1444	*/	1522	*/
1445	void	1523	void
1446	replace_insert_ob_in_map (const char *arch_string, object *op)	1524	replace_insert_ob_in_map (const char *arch_string, object *op)
1447	{	1525	{
1448	object *tmp, *tmp1;
1449
1450	/* first search for itself and remove any old instances */	1526	/* first search for itself and remove any old instances */
1451		1527
1452	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)	1528	for (object *tmp = op->ms ().bot; tmp; tmp = tmp->above)
1453	if (!strcmp (tmp->arch->name, arch_string)) /* same archetype */	1529	if (!strcmp (tmp->arch->archname, arch_string)) /* same archetype */
1454	tmp->destroy ();	1530	tmp->destroy (1);
1455		1531
1456	tmp1 = arch_to_object (archetype::find (arch_string));	1532	object *tmp = arch_to_object (archetype::find (arch_string));
1457		1533
1458	tmp1->x = op->x;	1534	tmp->x = op->x;
1459	tmp1->y = op->y;	1535	tmp->y = op->y;
		1536
1460	insert_ob_in_map (tmp1, op->map, op, 0);	1537	insert_ob_in_map (tmp, op->map, op, 0);
1461	}	1538	}
1462
1463	/*
1464	* get_split_ob(ob,nr) splits up ob into two parts. The part which
1465	* is returned contains nr objects, and the remaining parts contains
1466	* the rest (or is removed and freed if that number is 0).
1467	* On failure, NULL is returned, and the reason put into the
1468	* global static errmsg array.
1469	*/
1470		1539
1471	object *	1540	object *
1472	get_split_ob (object *orig_ob, uint32 nr)	1541	object::insert_at (object *where, object *originator, int flags)
1473	{	1542	{
1474	object *newob;	1543	if (where->env)
1475	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);	1544	return where->env->insert (this);
1476		1545	else
1477	if (orig_ob->nrof < nr)	1546	return where->map->insert (this, where->x, where->y, originator, flags);
1478	{
1479	sprintf (errmsg, "There are only %d %ss.", orig_ob->nrof ? orig_ob->nrof : 1, &orig_ob->name);
1480	return NULL;
1481	}
1482
1483	newob = object_create_clone (orig_ob);
1484
1485	if ((orig_ob->nrof -= nr) < 1)
1486	orig_ob->destroy (1);
1487	else if (!is_removed)
1488	{
1489	if (orig_ob->env != NULL)
1490	sub_weight (orig_ob->env, orig_ob->weight * nr);
1491	if (orig_ob->env == NULL && orig_ob->map->in_memory != MAP_IN_MEMORY)
1492	{
1493	strcpy (errmsg, "Tried to split object whose map is not in memory.");
1494	LOG (llevDebug, "Error, Tried to split object whose map is not in memory.\n");
1495	return NULL;
1496	}
1497	}
1498
1499	newob->nrof = nr;
1500
1501	return newob;
1502	}	1547	}
1503		1548
1504	/*	1549	/*
1505	* decrease_ob_nr(object, number) decreases a specified number from	1550	* decrease(object, number) decreases a specified number from
1506	* the amount of an object. If the amount reaches 0, the object	1551	* the amount of an object. If the amount reaches 0, the object
1507	* is subsequently removed and freed.	1552	* is subsequently removed and freed.
1508	*	1553	*
1509	* Return value: 'op' if something is left, NULL if the amount reached 0	1554	* Return value: 'op' if something is left, NULL if the amount reached 0
1510	*/	1555	*/
		1556	bool
		1557	object::decrease (sint32 nr)
		1558	{
		1559	if (!nr)
		1560	return true;
1511		1561
		1562	nr = min (nr, nrof);
		1563
		1564	nrof -= nr;
		1565
		1566	if (nrof)
		1567	{
		1568	adjust_weight (env, -weight * nr); // carrying == 0
		1569
		1570	if (object *pl = visible_to ())
		1571	esrv_update_item (UPD_NROF, pl, this);
		1572
		1573	return true;
		1574	}
		1575	else
		1576	{
		1577	destroy (1);
		1578	return false;
		1579	}
		1580	}
		1581
		1582	/*
		1583	* split(ob,nr) splits up ob into two parts. The part which
		1584	* is returned contains nr objects, and the remaining parts contains
		1585	* the rest (or is removed and returned if that number is 0).
		1586	* On failure, NULL is returned.
		1587	*/
1512	object *	1588	object *
1513	decrease_ob_nr (object *op, uint32 i)	1589	object::split (sint32 nr)
1514	{	1590	{
1515	object *tmp;	1591	int have = number_of ();
1516		1592
1517	if (i == 0) /* objects with op->nrof require this check */	1593	if (have < nr)
1518	return op;	1594	return 0;
1519		1595	else if (have == nr)
1520	if (i > op->nrof)
1521	i = op->nrof;
1522
1523	if (QUERY_FLAG (op, FLAG_REMOVED))
1524	op->nrof -= i;
1525	else if (op->env)
1526	{	1596	{
1527	/* is this object in the players inventory, or sub container
1528	* therein?
1529	*/
1530	tmp = op->in_player ();
1531	/* nope. Is this a container the player has opened?
1532	* If so, set tmp to that player.
1533	* IMO, searching through all the players will mostly
1534	* likely be quicker than following op->env to the map,
1535	* and then searching the map for a player.
1536	*/
1537	if (!tmp)
1538	for_all_players (pl)
1539	if (pl->ob->container == op->env)
1540	{
1541	tmp = pl->ob;
1542	break;
1543	}
1544
1545	if (i < op->nrof)
1546	{
1547	sub_weight (op->env, op->weight * i);
1548	op->nrof -= i;
1549	if (tmp)
1550	esrv_send_item (tmp, op);
1551	}
1552	else
1553	{
1554	op->remove ();	1597	remove ();
1555	op->nrof = 0;	1598	return this;
1556	if (tmp)
1557	esrv_del_item (tmp->contr, op->count);
1558	}
1559	}	1599	}
1560	else	1600	else
1561	{	1601	{
1562	object *above = op->above;	1602	decrease (nr);
1563		1603
1564	if (i < op->nrof)	1604	object *op = object_create_clone (this);
1565	op->nrof -= i;	1605	op->nrof = nr;
1566	else
1567	{
1568	op->remove ();
1569	op->nrof = 0;
1570	}
1571
1572	/* Since we just removed op, op->above is null */
1573	for (tmp = above; tmp; tmp = tmp->above)
1574	if (tmp->type == PLAYER)
1575	{
1576	if (op->nrof)
1577	esrv_send_item (tmp, op);
1578	else
1579	esrv_del_item (tmp->contr, op->count);
1580	}
1581	}
1582
1583	if (op->nrof)
1584	return op;	1606	return op;
1585	else
1586	{
1587	op->destroy ();
1588	return 0;
1589	}
1590	}
1591
1592	/*
1593	* add_weight(object, weight) adds the specified weight to an object,
1594	* and also updates how much the environment(s) is/are carrying.
1595	*/
1596
1597	void
1598	add_weight (object *op, signed long weight)
1599	{
1600	while (op != NULL)
1601	{
1602	if (op->type == CONTAINER)
1603	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1604
1605	op->carrying += weight;
1606	op = op->env;
1607	}	1607	}
1608	}	1608	}
1609		1609
1610	object *	1610	object *
1611	insert_ob_in_ob (object *op, object *where)	1611	insert_ob_in_ob (object *op, object *where)
…		…
1616	LOG (llevError, "Trying to put object in NULL.\n%s\n", dump);	1616	LOG (llevError, "Trying to put object in NULL.\n%s\n", dump);
1617	free (dump);	1617	free (dump);
1618	return op;	1618	return op;
1619	}	1619	}
1620		1620
1621	if (where->head)	1621	if (where->head_ () != where)
1622	{	1622	{
1623	LOG (llevDebug, "Warning: Tried to insert object into wrong part of multipart object.\n");	1623	LOG (llevError | logBacktrace, "Warning: Tried to insert object into wrong part of multipart object.\n");
1624	where = where->head;	1624	where = where->head;
1625	}	1625	}
1626		1626
1627	return where->insert (op);	1627	return where->insert (op);
1628	}	1628	}
…		…
1633	* inside the object environment.	1633	* inside the object environment.
1634	*	1634	*
1635	* The function returns now pointer to inserted item, and return value can	1635	* The function returns now pointer to inserted item, and return value can
1636	* be != op, if items are merged. -Tero	1636	* be != op, if items are merged. -Tero
1637	*/	1637	*/
1638
1639	object *	1638	object *
1640	object::insert (object *op)	1639	object::insert (object *op)
1641	{	1640	{
1642	object *tmp, *otmp;
1643
1644	if (!QUERY_FLAG (op, FLAG_REMOVED))
1645	op->remove ();
1646
1647	if (op->more)	1641	if (op->more)
1648	{	1642	{
1649	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);	1643	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);
1650	return op;	1644	return op;
1651	}	1645	}
1652		1646
1653	CLEAR_FLAG (op, FLAG_OBJ_ORIGINAL);	1647	op->remove ();
1654	CLEAR_FLAG (op, FLAG_REMOVED);	1648
		1649	op->flag [FLAG_OBJ_ORIGINAL] = 0;
		1650
1655	if (op->nrof)	1651	if (op->nrof)
1656	{
1657	for (tmp = inv; tmp != NULL; tmp = tmp->below)	1652	for (object *tmp = inv; tmp; tmp = tmp->below)
1658	if (object::can_merge (tmp, op))	1653	if (object::can_merge (tmp, op))
1659	{	1654	{
1660	/* return the original object and remove inserted object	1655	/* return the original object and remove inserted object
1661	(client needs the original object) */	1656	(client needs the original object) */
1662	tmp->nrof += op->nrof;	1657	tmp->nrof += op->nrof;
1663	/* Weight handling gets pretty funky. Since we are adding to	1658
1664	* tmp->nrof, we need to increase the weight.	1659	if (object *pl = tmp->visible_to ())
1665	*/	1660	esrv_update_item (UPD_NROF, pl, tmp);
		1661
1666	add_weight (this, op->weight * op->nrof);	1662	adjust_weight (this, op->total_weight ());
1667	SET_FLAG (op, FLAG_REMOVED);	1663
1668	op->destroy (); /* free the inserted object */	1664	op->destroy (1);
1669	op = tmp;	1665	op = tmp;
1670	op->remove (); /* and fix old object's links */	1666	goto inserted;
1671	CLEAR_FLAG (op, FLAG_REMOVED);
1672	break;
1673	}	1667	}
1674		1668
1675	/* I assume combined objects have no inventory	1669	op->owner = 0; // it's his/hers now. period.
1676	* We add the weight - this object could have just been removed
1677	* (if it was possible to merge). calling remove_ob will subtract
1678	* the weight, so we need to add it in again, since we actually do
1679	* the linking below
1680	*/
1681	add_weight (this, op->weight * op->nrof);
1682	}
1683	else
1684	add_weight (this, (op->weight + op->carrying));
1685
1686	otmp = this->in_player ();
1687	if (otmp && otmp->contr)
1688	if (!QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1689	otmp->update_stats ();
1690
1691	op->map = 0;	1670	op->map = 0;
1692	op->env = this;	1671	op->x = 0;
		1672	op->y = 0;
		1673
1693	op->above = 0;	1674	op->above = 0;
1694	op->below = 0;	1675	op->below = inv;
1695	op->x = 0, op->y = 0;	1676	op->env = this;
1696		1677
		1678	if (inv)
		1679	inv->above = op;
		1680
		1681	inv = op;
		1682
		1683	op->flag [FLAG_REMOVED] = 0;
		1684
		1685	if (object *pl = op->visible_to ())
		1686	esrv_send_item (pl, op);
		1687
		1688	adjust_weight (this, op->total_weight ());
		1689
		1690	inserted:
1697	/* reset the light list and los of the players on the map */	1691	/* reset the light list and los of the players on the map */
1698	if ((op->glow_radius != 0) && map)	1692	if (op->glow_radius && map && map->darkness)
1699	{
1700	#ifdef DEBUG_LIGHTS
1701	LOG (llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n", op->name);
1702	#endif /* DEBUG_LIGHTS */
1703	if (map->darkness)
1704	update_all_los (map, x, y);	1693	update_all_los (map, x, y);
1705	}
1706		1694
1707	/* Client has no idea of ordering so lets not bother ordering it here.	1695	// if this is a player's inventory, update stats
1708	* It sure simplifies this function...	1696	if (type == PLAYER && !flag [FLAG_NO_FIX_PLAYER])
1709	*/	1697	update_stats ();
1710	if (!inv)
1711	inv = op;
1712	else
1713	{
1714	op->below = inv;
1715	op->below->above = op;
1716	inv = op;
1717	}
1718		1698
1719	INVOKE_OBJECT (INSERT, this);	1699	INVOKE_OBJECT (INSERT, this);
1720		1700
1721	return op;	1701	return op;
1722	}	1702	}
…		…
1739	*	1719	*
1740	* MSW 2001-07-08: Check all objects on space, not just those below	1720	* MSW 2001-07-08: Check all objects on space, not just those below
1741	* object being inserted. insert_ob_in_map may not put new objects	1721	* object being inserted. insert_ob_in_map may not put new objects
1742	* on top.	1722	* on top.
1743	*/	1723	*/
1744
1745	int	1724	int
1746	check_move_on (object *op, object *originator)	1725	check_move_on (object *op, object *originator)
1747	{	1726	{
1748	object *tmp;	1727	object *tmp;
1749	maptile *m = op->map;	1728	maptile *m = op->map;
…		…
1776		1755
1777	/* The objects have to be checked from top to bottom.	1756	/* The objects have to be checked from top to bottom.
1778	* Hence, we first go to the top:	1757	* Hence, we first go to the top:
1779	*/	1758	*/
1780		1759
1781	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp && tmp->above; tmp = tmp->above)	1760	for (tmp = op->ms ().bot; tmp && tmp->above; tmp = tmp->above)
1782	{	1761	{
1783	/* Trim the search when we find the first other spell effect	1762	/* Trim the search when we find the first other spell effect
1784	* this helps performance so that if a space has 50 spell objects,	1763	* this helps performance so that if a space has 50 spell objects,
1785	* we don't need to check all of them.	1764	* we don't need to check all of them.
1786	*/	1765	*/
…		…
1804	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||	1783	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||
1805	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))	1784	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))
1806	{	1785	{
1807		1786
1808	float	1787	float
1809	diff = tmp->move_slow_penalty * FABS (op->speed);	1788	diff = tmp->move_slow_penalty * fabs (op->speed);
1810		1789
1811	if (op->type == PLAYER)	1790	if (op->type == PLAYER)
1812	if ((QUERY_FLAG (tmp, FLAG_IS_HILLY) && find_skill_by_number (op, SK_CLIMBING)) ||	1791	if ((QUERY_FLAG (tmp, FLAG_IS_HILLY) && find_skill_by_number (op, SK_CLIMBING)) ||
1813	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))	1792	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))
1814	diff /= 4.0;	1793	diff /= 4.0;
…		…
1844	* The first matching object is returned, or NULL if none.	1823	* The first matching object is returned, or NULL if none.
1845	*/	1824	*/
1846	object *	1825	object *
1847	present_arch (const archetype *at, maptile *m, int x, int y)	1826	present_arch (const archetype *at, maptile *m, int x, int y)
1848	{	1827	{
1849	if (m == NULL || out_of_map (m, x, y))	1828	if (!m || out_of_map (m, x, y))
1850	{	1829	{
1851	LOG (llevError, "Present_arch called outside map.\n");	1830	LOG (llevError, "Present_arch called outside map.\n");
1852	return NULL;	1831	return NULL;
1853	}	1832	}
1854		1833
1855	for (object *tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)	1834	for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)
1856	if (tmp->arch == at)	1835	if (tmp->arch == at)
1857	return tmp;	1836	return tmp;
1858		1837
1859	return NULL;	1838	return NULL;
1860	}	1839	}
…		…
1871	{	1850	{
1872	LOG (llevError, "Present called outside map.\n");	1851	LOG (llevError, "Present called outside map.\n");
1873	return NULL;	1852	return NULL;
1874	}	1853	}
1875		1854
1876	for (object *tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)	1855	for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)
1877	if (tmp->type == type)	1856	if (tmp->type == type)
1878	return tmp;	1857	return tmp;
1879		1858
1880	return NULL;	1859	return NULL;
1881	}	1860	}
…		…
1938	* activate recursively a flag on an object inventory	1917	* activate recursively a flag on an object inventory
1939	*/	1918	*/
1940	void	1919	void
1941	flag_inv (object *op, int flag)	1920	flag_inv (object *op, int flag)
1942	{	1921	{
1943	if (op->inv)
1944	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)	1922	for (object *tmp = op->inv; tmp; tmp = tmp->below)
1945	{	1923	{
1946	SET_FLAG (tmp, flag);	1924	SET_FLAG (tmp, flag);
1947	flag_inv (tmp, flag);	1925	flag_inv (tmp, flag);
1948	}	1926	}
1949	}	1927	}
1950		1928
1951	/*	1929	/*
1952	* deactivate recursively a flag on an object inventory	1930	* deactivate recursively a flag on an object inventory
1953	*/	1931	*/
1954	void	1932	void
1955	unflag_inv (object *op, int flag)	1933	unflag_inv (object *op, int flag)
1956	{	1934	{
1957	if (op->inv)
1958	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)	1935	for (object *tmp = op->inv; tmp; tmp = tmp->below)
1959	{	1936	{
1960	CLEAR_FLAG (tmp, flag);	1937	CLEAR_FLAG (tmp, flag);
1961	unflag_inv (tmp, flag);	1938	unflag_inv (tmp, flag);
1962	}	1939	}
1963	}
1964
1965	/*
1966	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in
1967	* all it's inventory (recursively).
1968	* If checksums are used, a player will get set_cheat called for
1969	* him/her-self and all object carried by a call to this function.
1970	*/
1971	void
1972	set_cheat (object *op)
1973	{
1974	SET_FLAG (op, FLAG_WAS_WIZ);
1975	flag_inv (op, FLAG_WAS_WIZ);
1976	}	1940	}
1977		1941
1978	/*	1942	/*
1979	* find_free_spot(object, map, x, y, start, stop) will search for	1943	* find_free_spot(object, map, x, y, start, stop) will search for
1980	* a spot at the given map and coordinates which will be able to contain	1944	* a spot at the given map and coordinates which will be able to contain
…		…
1982	* to search (see the freearr_x/y[] definition).	1946	* to search (see the freearr_x/y[] definition).
1983	* It returns a random choice among the alternatives found.	1947	* It returns a random choice among the alternatives found.
1984	* start and stop are where to start relative to the free_arr array (1,9	1948	* start and stop are where to start relative to the free_arr array (1,9
1985	* does all 4 immediate directions). This returns the index into the	1949	* does all 4 immediate directions). This returns the index into the
1986	* array of the free spot, -1 if no spot available (dir 0 = x,y)	1950	* array of the free spot, -1 if no spot available (dir 0 = x,y)
1987	* Note - this only checks to see if there is space for the head of the
1988	* object - if it is a multispace object, this should be called for all
1989	* pieces.
1990	* Note2: This function does correctly handle tiled maps, but does not	1951	* Note: This function does correctly handle tiled maps, but does not
1991	* inform the caller. However, insert_ob_in_map will update as	1952	* inform the caller. However, insert_ob_in_map will update as
1992	* necessary, so the caller shouldn't need to do any special work.	1953	* necessary, so the caller shouldn't need to do any special work.
1993	* Note - updated to take an object instead of archetype - this is necessary	1954	* Note - updated to take an object instead of archetype - this is necessary
1994	* because arch_blocked (now ob_blocked) needs to know the movement type	1955	* because arch_blocked (now ob_blocked) needs to know the movement type
1995	* to know if the space in question will block the object. We can't use	1956	* to know if the space in question will block the object. We can't use
…		…
1997	* customized, changed states, etc.	1958	* customized, changed states, etc.
1998	*/	1959	*/
1999	int	1960	int
2000	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)	1961	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)
2001	{	1962	{
		1963	int altern[SIZEOFFREE];
2002	int index = 0, flag;	1964	int index = 0, flag;
2003	int altern[SIZEOFFREE];
2004		1965
2005	for (int i = start; i < stop; i++)	1966	for (int i = start; i < stop; i++)
2006	{	1967	{
2007	flag = ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]);	1968	mapxy pos (m, x, y); pos.move (i);
2008	if (!flag)	1969
		1970	if (!pos.normalise ())
		1971	continue;
		1972
		1973	mapspace &ms = *pos;
		1974
		1975	if (ms.flags () & P_IS_ALIVE)
		1976	continue;
		1977
		1978	/* However, often
		1979	* ob doesn't have any move type (when used to place exits)
		1980	* so the AND operation in OB_TYPE_MOVE_BLOCK doesn't work.
		1981	*/
		1982	if (ob && ob->move_type == 0 && ms.move_block != MOVE_ALL)
		1983	{
2009	altern [index++] = i;	1984	altern [index++] = i;
		1985	continue;
		1986	}
2010		1987
2011	/* Basically, if we find a wall on a space, we cut down the search size.	1988	/* Basically, if we find a wall on a space, we cut down the search size.
2012	* In this way, we won't return spaces that are on another side of a wall.	1989	* In this way, we won't return spaces that are on another side of a wall.
2013	* This mostly work, but it cuts down the search size in all directions -	1990	* This mostly work, but it cuts down the search size in all directions -
2014	* if the space being examined only has a wall to the north and empty	1991	* if the space being examined only has a wall to the north and empty
2015	* spaces in all the other directions, this will reduce the search space	1992	* spaces in all the other directions, this will reduce the search space
2016	* to only the spaces immediately surrounding the target area, and	1993	* to only the spaces immediately surrounding the target area, and
2017	* won't look 2 spaces south of the target space.	1994	* won't look 2 spaces south of the target space.
2018	*/	1995	*/
2019	else if ((flag & P_NO_PASS) && maxfree[i] < stop)	1996	if (ms.move_block == MOVE_ALL && maxfree[i] < stop)
		1997	{
2020	stop = maxfree[i];	1998	stop = maxfree[i];
		1999	continue;
		2000	}
		2001
		2002	/* Note it is intentional that we check ob - the movement type of the
		2003	* head of the object should correspond for the entire object.
		2004	*/
		2005	if (OB_TYPE_MOVE_BLOCK (ob, ms.move_block))
		2006	continue;
		2007
		2008	if (ob->blocked (m, pos.x, pos.y))
		2009	continue;
		2010
		2011	altern [index++] = i;
2021	}	2012	}
2022		2013
2023	if (!index)	2014	if (!index)
2024	return -1;	2015	return -1;
2025		2016
2026	return altern[RANDOM () % index];	2017	return altern [rndm (index)];
2027	}	2018	}
2028		2019
2029	/*	2020	/*
2030	* find_first_free_spot(archetype, maptile, x, y) works like	2021	* find_first_free_spot(archetype, maptile, x, y) works like
2031	* find_free_spot(), but it will search max number of squares.	2022	* find_free_spot(), but it will search max number of squares.
…		…
2034	*/	2025	*/
2035	int	2026	int
2036	find_first_free_spot (const object *ob, maptile *m, int x, int y)	2027	find_first_free_spot (const object *ob, maptile *m, int x, int y)
2037	{	2028	{
2038	for (int i = 0; i < SIZEOFFREE; i++)	2029	for (int i = 0; i < SIZEOFFREE; i++)
2039	if (!ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]))	2030	if (!ob->blocked (m, x + freearr_x[i], y + freearr_y[i]))
2040	return i;	2031	return i;
2041		2032
2042	return -1;	2033	return -1;
2043	}	2034	}
2044		2035
…		…
2052	{	2043	{
2053	arr += begin;	2044	arr += begin;
2054	end -= begin;	2045	end -= begin;
2055		2046
2056	while (--end)	2047	while (--end)
2057	swap (arr [end], arr [RANDOM () % (end + 1)]);	2048	swap (arr [end], arr [rndm (end + 1)]);
2058	}	2049	}
2059		2050
2060	/* new function to make monster searching more efficient, and effective!	2051	/* new function to make monster searching more efficient, and effective!
2061	* This basically returns a randomized array (in the passed pointer) of	2052	* This basically returns a randomized array (in the passed pointer) of
2062	* the spaces to find monsters. In this way, it won't always look for	2053	* the spaces to find monsters. In this way, it won't always look for
…		…
2098	object *tmp;	2089	object *tmp;
2099	maptile *mp;	2090	maptile *mp;
2100		2091
2101	MoveType blocked, move_type;	2092	MoveType blocked, move_type;
2102		2093
2103	if (exclude && exclude->head)	2094	if (exclude && exclude->head_ () != exclude)
2104	{	2095	{
2105	exclude = exclude->head;	2096	exclude = exclude->head;
2106	move_type = exclude->move_type;	2097	move_type = exclude->move_type;
2107	}	2098	}
2108	else	2099	else
…		…
2131	max = maxfree[i];	2122	max = maxfree[i];
2132	else if (mflags & P_IS_ALIVE)	2123	else if (mflags & P_IS_ALIVE)
2133	{	2124	{
2134	for (tmp = ms.bot; tmp; tmp = tmp->above)	2125	for (tmp = ms.bot; tmp; tmp = tmp->above)
2135	if ((tmp->flag [FLAG_MONSTER] || tmp->type == PLAYER)	2126	if ((tmp->flag [FLAG_MONSTER] || tmp->type == PLAYER)
2136	&& (tmp != exclude || (tmp->head && tmp->head != exclude)))	2127	&& (tmp != exclude || (tmp->head_ () != tmp && tmp->head_ () != exclude)))
2137	break;	2128	break;
2138		2129
2139	if (tmp)	2130	if (tmp)
2140	return freedir[i];	2131	return freedir[i];
2141	}	2132	}
…		…
2196		2187
2197	return 3;	2188	return 3;
2198	}	2189	}
2199		2190
2200	/*	2191	/*
2201	* absdir(int): Returns a number between 1 and 8, which represent
2202	* the "absolute" direction of a number (it actually takes care of
2203	* "overflow" in previous calculations of a direction).
2204	*/
2205
2206	int
2207	absdir (int d)
2208	{
2209	while (d < 1)
2210	d += 8;
2211
2212	while (d > 8)
2213	d -= 8;
2214
2215	return d;
2216	}
2217
2218	/*
2219	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is	2192	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is
2220	* between two directions (which are expected to be absolute (see absdir())	2193	* between two directions (which are expected to be absolute (see absdir())
2221	*/	2194	*/
2222
2223	int	2195	int
2224	dirdiff (int dir1, int dir2)	2196	dirdiff (int dir1, int dir2)
2225	{	2197	{
2226	int d;	2198	int d;
2227		2199
…		…
2340	* Cf 0.91.3 - don't let WIZ's pick up anything - will likely cause	2312	* Cf 0.91.3 - don't let WIZ's pick up anything - will likely cause
2341	* core dumps if they do.	2313	* core dumps if they do.
2342	*	2314	*
2343	* Add a check so we can't pick up invisible objects (0.93.8)	2315	* Add a check so we can't pick up invisible objects (0.93.8)
2344	*/	2316	*/
2345
2346	int	2317	int
2347	can_pick (const object *who, const object *item)	2318	can_pick (const object *who, const object *item)
2348	{	2319	{
2349	return /*QUERY_FLAG(who,FLAG_WIZ)|| */	2320	return /*QUERY_FLAG(who,FLAG_WIZ)|| */
2350	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&	2321	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&
…		…
2355	* create clone from object to another	2326	* create clone from object to another
2356	*/	2327	*/
2357	object *	2328	object *
2358	object_create_clone (object *asrc)	2329	object_create_clone (object *asrc)
2359	{	2330	{
2360	object *dst = 0, *tmp, *src, *part, *prev, *item;	2331	object *dst = 0, *tmp, *src, *prev, *item;
2361		2332
2362	if (!asrc)	2333	if (!asrc)
2363	return 0;	2334	return 0;
2364		2335
2365	src = asrc;
2366	if (src->head)
2367	src = src->head;	2336	src = asrc->head_ ();
2368		2337
2369	prev = 0;	2338	prev = 0;
2370	for (part = src; part; part = part->more)	2339	for (object *part = src; part; part = part->more)
2371	{	2340	{
2372	tmp = part->clone ();	2341	tmp = part->clone ();
2373	tmp->x -= src->x;	2342	tmp->x -= src->x;
2374	tmp->y -= src->y;	2343	tmp->y -= src->y;
2375		2344
…		…
2393	insert_ob_in_ob (object_create_clone (item), dst);	2362	insert_ob_in_ob (object_create_clone (item), dst);
2394		2363
2395	return dst;	2364	return dst;
2396	}	2365	}
2397		2366
2398	/* GROS - Creates an object using a string representing its content. */
2399	/* Basically, we save the content of the string to a temp file, then call */
2400	/* load_object on it. I admit it is a highly inefficient way to make things, */
2401	/* but it was simple to make and allows reusing the load_object function. */
2402	/* Remember not to use load_object_str in a time-critical situation. */
2403	/* Also remember that multiparts objects are not supported for now. */
2404	object *
2405	load_object_str (const char *obstr)
2406	{
2407	object *op;
2408	char filename[MAX_BUF];
2409
2410	sprintf (filename, "%s/cfloadobstr2044", settings.tmpdir);
2411
2412	FILE *tempfile = fopen (filename, "w");
2413
2414	if (tempfile == NULL)
2415	{
2416	LOG (llevError, "Error - Unable to access load object temp file\n");
2417	return NULL;
2418	}
2419
2420	fprintf (tempfile, obstr);
2421	fclose (tempfile);
2422
2423	op = object::create ();
2424
2425	object_thawer thawer (filename);
2426
2427	if (thawer)
2428	load_object (thawer, op, 0);
2429
2430	LOG (llevDebug, " load str completed, object=%s\n", &op->name);
2431	CLEAR_FLAG (op, FLAG_REMOVED);
2432
2433	return op;
2434	}
2435
2436	/* This returns the first object in who's inventory that	2367	/* This returns the first object in who's inventory that
2437	* has the same type and subtype match.	2368	* has the same type and subtype match.
2438	* returns NULL if no match.	2369	* returns NULL if no match.
2439	*/	2370	*/
2440	object *	2371	object *
…		…
2493	if (link->key == canonical_key)	2424	if (link->key == canonical_key)
2494	return link->value;	2425	return link->value;
2495		2426
2496	return 0;	2427	return 0;
2497	}	2428	}
2498
2499		2429
2500	/*	2430	/*
2501	* Updates the canonical_key in op to value.	2431	* Updates the canonical_key in op to value.
2502	*	2432	*
2503	* canonical_key is a shared string (value doesn't have to be).	2433	* canonical_key is a shared string (value doesn't have to be).
…		…
2527	/* Basically, if the archetype has this key set,	2457	/* Basically, if the archetype has this key set,
2528	* we need to store the null value so when we save	2458	* we need to store the null value so when we save
2529	* it, we save the empty value so that when we load,	2459	* it, we save the empty value so that when we load,
2530	* we get this value back again.	2460	* we get this value back again.
2531	*/	2461	*/
2532	if (get_ob_key_link (&op->arch->clone, canonical_key))	2462	if (get_ob_key_link (op->arch, canonical_key))
2533	field->value = 0;	2463	field->value = 0;
2534	else	2464	else
2535	{	2465	{
2536	if (last)	2466	if (last)
2537	last->next = field->next;	2467	last->next = field->next;
…		…
2606	}	2536	}
2607	else	2537	else
2608	item = item->env;	2538	item = item->env;
2609	}	2539	}
2610		2540
		2541	const char *
		2542	object::flag_desc (char *desc, int len) const
		2543	{
		2544	char *p = desc;
		2545	bool first = true;
		2546
		2547	*p = 0;
		2548
		2549	for (int i = 0; i < NUM_FLAGS; i++)
		2550	{
		2551	if (len <= 10) // magic constant!
		2552	{
		2553	snprintf (p, len, ",...");
		2554	break;
		2555	}
		2556
		2557	if (flag [i])
		2558	{
		2559	int cnt = snprintf (p, len, "%s%d", first ? "" : ",", i);
		2560	len -= cnt;
		2561	p += cnt;
		2562	first = false;
		2563	}
		2564	}
		2565
		2566	return desc;
		2567	}
		2568
2611	// return a suitable string describing an objetc in enough detail to find it	2569	// return a suitable string describing an object in enough detail to find it
2612	const char *	2570	const char *
2613	object::debug_desc (char *info) const	2571	object::debug_desc (char *info) const
2614	{	2572	{
		2573	char flagdesc[512];
2615	char info2[256 * 3];	2574	char info2[256 * 4];
2616	char *p = info;	2575	char *p = info;
2617		2576
2618	p += snprintf (p, 256, "%d=\"%s%s%s\"",	2577	p += snprintf (p, 512, "{cnt:%d,uuid:%s,name:\"%s\"%s%s,flags:[%s],type:%d}",
2619	count,	2578	count,
		2579	uuid.c_str (),
2620	&name,	2580	&name,
2621	title ? " " : "",	2581	title ? "\",title:\"" : "",
2622	title ? (const char *)title : "");	2582	title ? (const char *)title : "",
		2583	flag_desc (flagdesc, 512), type);
2623		2584
2624	if (env)	2585	if (!flag[FLAG_REMOVED] && env)
2625	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));	2586	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));
2626		2587
2627	if (map)	2588	if (map)
2628	p += snprintf (p, 256, "(on %s@%d+%d)", map->path, x, y);	2589	p += snprintf (p, 256, "(on %s@%d+%d)", &map->path, x, y);
2629		2590
2630	return info;	2591	return info;
2631	}	2592	}
2632		2593
2633	const char *	2594	const char *
2634	object::debug_desc () const	2595	object::debug_desc () const
2635	{	2596	{
2636	static char info[256 * 3];	2597	static char info[3][256 * 4];
		2598	static int info_idx;
		2599
2637	return debug_desc (info);	2600	return debug_desc (info [++info_idx % 3]);
2638	}	2601	}
2639		2602
		2603	struct region *
		2604	object::region () const
		2605	{
		2606	return map ? map->region (x, y)
		2607	: region::default_region ();
		2608	}
		2609
		2610	const materialtype_t *
		2611	object::dominant_material () const
		2612	{
		2613	if (materialtype_t *mt = name_to_material (materialname))
		2614	return mt;
		2615
		2616	return name_to_material (shstr_unknown);
		2617	}
		2618
		2619	void
		2620	object::open_container (object *new_container)
		2621	{
		2622	if (container == new_container)
		2623	return;
		2624
		2625	object *old_container = container;
		2626
		2627	if (old_container)
		2628	{
		2629	if (INVOKE_OBJECT (CLOSE, old_container, ARG_OBJECT (this)))
		2630	return;
		2631
		2632	#if 0
		2633	// remove the "Close old_container" object.
		2634	if (object *closer = old_container->inv)
		2635	if (closer->type == CLOSE_CON)
		2636	closer->destroy ();
		2637	#endif
		2638
		2639	// make sure the container is available
		2640	esrv_send_item (this, old_container);
		2641
		2642	old_container->flag [FLAG_APPLIED] = false;
		2643	container = 0;
		2644
		2645	// client needs item update to make it work, client bug requires this to be separate
		2646	esrv_update_item (UPD_FLAGS, this, old_container);
		2647
		2648	new_draw_info_format (NDI_UNIQUE, 0, this, "You close %s.", query_name (old_container));
		2649	play_sound (sound_find ("chest_close"));
		2650	}
		2651
		2652	if (new_container)
		2653	{
		2654	if (INVOKE_OBJECT (OPEN, new_container, ARG_OBJECT (this)))
		2655	return;
		2656
		2657	// TODO: this does not seem to serve any purpose anymore?
		2658	#if 0
		2659	// insert the "Close Container" object.
		2660	if (archetype *closer = new_container->other_arch)
		2661	{
		2662	object *closer = arch_to_object (new_container->other_arch);
		2663	closer->flag [FLAG_NO_MAP_SAVE] = 1;
		2664	new_container->insert (closer);
		2665	}
		2666	#endif
		2667
		2668	new_draw_info_format (NDI_UNIQUE, 0, this, "You open %s.", query_name (new_container));
		2669
		2670	// make sure the container is available, client bug requires this to be separate
		2671	esrv_send_item (this, new_container);
		2672
		2673	new_container->flag [FLAG_APPLIED] = true;
		2674	container = new_container;
		2675
		2676	// client needs flag change
		2677	esrv_update_item (UPD_FLAGS, this, new_container);
		2678	esrv_send_inventory (this, new_container);
		2679	play_sound (sound_find ("chest_open"));
		2680	}
		2681	// else if (!old_container->env && contr && contr->ns)
		2682	// contr->ns->floorbox_reset ();
		2683	}
		2684
		2685	object *
		2686	object::force_find (const shstr name)
		2687	{
		2688	/* cycle through his inventory to look for the MARK we want to
		2689	* place
		2690	*/
		2691	for (object *tmp = inv; tmp; tmp = tmp->below)
		2692	if (tmp->type == FORCE && tmp->slaying == name)
		2693	return splay (tmp);
		2694
		2695	return 0;
		2696	}
		2697
		2698	void
		2699	object::force_add (const shstr name, int duration)
		2700	{
		2701	if (object *force = force_find (name))
		2702	force->destroy ();
		2703
		2704	object *force = get_archetype (FORCE_NAME);
		2705
		2706	force->slaying = name;
		2707	force->stats.food = 1;
		2708	force->speed_left = -1.f;
		2709
		2710	force->set_speed (duration ? 1.f / duration : 0.f);
		2711	force->flag [FLAG_IS_USED_UP] = true;
		2712	force->flag [FLAG_APPLIED] = true;
		2713
		2714	insert (force);
		2715	}
		2716
		2717	void
		2718	object::play_sound (faceidx sound)
		2719	{
		2720	if (!sound)
		2721	return;
		2722
		2723	if (flag [FLAG_REMOVED])
		2724	return;
		2725
		2726	if (env)
		2727	{
		2728	if (object *pl = in_player ())
		2729	pl->contr->play_sound (sound);
		2730	}
		2731	else
		2732	map->play_sound (sound, x, y);
		2733	}
		2734

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