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Comparing deliantra/server/common/object.C (file contents):
Revision 1.26 by root, Mon Sep 11 11:46:52 2006 UTC vs.
Revision 1.204 by root, Fri Apr 11 17:01:52 2008 UTC

1
2	/*	1	/*
3	* static char *rcsid_object_c =	2	* This file is part of Deliantra, the Roguelike Realtime MMORPG.
4	* "$Id: object.C,v 1.26 2006/09/11 11:46:52 root Exp $";	3	*
5	*/	4	* Copyright (©) 2005,2006,2007 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
6
7	/*
8	CrossFire, A Multiplayer game for X-windows
9
10	Copyright (C) 2001 Mark Wedel & Crossfire Development Team	5	* Copyright (©) 2001,2007 Mark Wedel & Crossfire Development Team
11	Copyright (C) 1992 Frank Tore Johansen	6	* Copyright (©) 1992,2007 Frank Tore Johansen
12		7	*
13	This program is free software; you can redistribute it and/or modify	8	* Deliantra is free software: you can redistribute it and/or modify
14	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
15	the Free Software Foundation; either version 2 of the License, or	10	* the Free Software Foundation, either version 3 of the License, or
16	(at your option) any later version.	11	* (at your option) any later version.
17		12	*
18	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,
19	but WITHOUT ANY WARRANTY; without even the implied warranty of	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
20	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21	GNU General Public License for more details.	16	* GNU General Public License for more details.
22		17	*
23	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
24	along with this program; if not, write to the Free Software	19	* along with this program. If not, see <http://www.gnu.org/licenses/>.
25	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.	20	*
26		21	* The authors can be reached via e-mail to <support@deliantra.net>
27	The authors can be reached via e-mail at crossfire-devel@real-time.com
28	*/	22	*/
29		23
30	/* Eneq(@csd.uu.se): Added weight-modifiers in environment of objects.	24	/* Eneq(@csd.uu.se): Added weight-modifiers in environment of objects.
31	sub/add_weight will transcend the environment updating the carrying	25	sub/add_weight will transcend the environment updating the carrying
32	variable. */	26	variable. */
33	#include <global.h>	27	#include <global.h>
34	#ifndef WIN32 /* ---win32 exclude headers */
35	# include <stdio.h>	28	#include <stdio.h>
36	# include <sys/types.h>	29	#include <sys/types.h>
37	# include <sys/uio.h>	30	#include <sys/uio.h>
38	#endif /* win32 */
39	#include <object.h>	31	#include <object.h>
40	#include <funcpoint.h>	32	#include <funcpoint.h>
41	#include <skills.h>	33	#include <sproto.h>
42	#include <loader.h>	34	#include <loader.h>
43	int nrofallocobjects = 0;
44		35
45	object *objects; /* Pointer to the list of used objects */	36	#include <bitset>
46	object *active_objects; /* List of active objects that need to be processed */
47		37
48	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,	38	UUID UUID::cur;
		39	static uint64_t seq_next_save;
		40	static const uint64 UUID_GAP = 1<<19;
		41
		42	objectvec objects;
		43	activevec actives;
		44
		45	short freearr_x[SIZEOFFREE] = {
		46	0,
		47	0, 1, 1, 1, 0, -1, -1, -1,
		48	0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2, -2, -2, -2, -1,
49	0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3, -3, -3, -3, -3, -2, -1	49	0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3, -3, -3, -3, -3, -2, -1
50	};	50	};
51	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,	51	short freearr_y[SIZEOFFREE] = {
		52	0,
		53	-1, -1, 0, 1, 1, 1, 0, -1,
		54	-2, -2, -2, -1, 0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2,
52	-3, -3, -3, -3, -2, -1, 0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3	55	-3, -3, -3, -3, -2, -1, 0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3
53	};	56	};
54	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,	57	int maxfree[SIZEOFFREE] = {
		58	0,
		59	9, 10, 13, 14, 17, 18, 21, 22,
		60	25, 26, 27, 30, 31, 32, 33, 36, 37, 39, 39, 42, 43, 44, 45, 48,
55	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	61	49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49
56	};	62	};
57	int freedir[SIZEOFFREE] = {	63	int freedir[SIZEOFFREE] = {
58	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,	64	0,
		65	1, 2, 3, 4, 5, 6, 7, 8,
		66	1, 2, 2, 2, 3, 4, 4, 4, 5, 6, 6, 6, 7, 8, 8, 8,
59	1, 2, 2, 2, 2, 2, 3, 4, 4, 4, 4, 4, 5, 6, 6, 6, 6, 6, 7, 8, 8, 8, 8, 8	67	1, 2, 2, 2, 2, 2, 3, 4, 4, 4, 4, 4, 5, 6, 6, 6, 6, 6, 7, 8, 8, 8, 8, 8
60	};	68	};
		69
		70	static void
		71	write_uuid (uval64 skip, bool sync)
		72	{
		73	CALL_BEGIN (2);
		74	CALL_ARG_SV (newSVval64 (skip));
		75	CALL_ARG_SV (boolSV (sync));
		76	CALL_CALL ("cf::write_uuid", G_DISCARD);
		77	CALL_END;
		78	}
		79
		80	static void
		81	read_uuid (void)
		82	{
		83	char filename[MAX_BUF];
		84
		85	sprintf (filename, "%s/uuid", settings.localdir);
		86
		87	seq_next_save = 0;
		88
		89	FILE *fp;
		90
		91	if (!(fp = fopen (filename, "r")))
		92	{
		93	if (errno == ENOENT)
		94	{
		95	LOG (llevInfo, "RESET uid to 1\n");
		96	UUID::cur.seq = 0;
		97	write_uuid (UUID_GAP, true);
		98	return;
		99	}
		100
		101	LOG (llevError, "FATAL: cannot open %s for reading!\n", filename);
		102	_exit (1);
		103	}
		104
		105	UUID::BUF buf;
		106	buf[0] = 0;
		107	fgets (buf, sizeof (buf), fp);
		108
		109	if (!UUID::cur.parse (buf))
		110	{
		111	LOG (llevError, "FATAL: error reading uid from %s (%s)!\n", filename, buf);
		112	_exit (1);
		113	}
		114
		115	LOG (llevDebug, "read UUID: %s\n", UUID::cur.c_str ());
		116
		117	write_uuid (UUID_GAP, true);
		118	fclose (fp);
		119	}
		120
		121	UUID
		122	UUID::gen ()
		123	{
		124	UUID uid;
		125
		126	uid.seq = ++cur.seq;
		127
		128	if (expect_false (cur.seq >= seq_next_save))
		129	{
		130	seq_next_save = UUID::cur.seq + (UUID_GAP >> 1);
		131	write_uuid (UUID_GAP, false);
		132	}
		133
		134
		135	return uid;
		136	}
		137
		138	void
		139	UUID::init ()
		140	{
		141	read_uuid ();
		142	}
61		143
62	/* Returns TRUE if every key_values in wants has a partner with the same value in has. */	144	/* Returns TRUE if every key_values in wants has a partner with the same value in has. */
63	static int	145	static int
64	compare_ob_value_lists_one (const object *wants, const object *has)	146	compare_ob_value_lists_one (const object *wants, const object *has)
65	{	147	{
…		…
69	* objects with lists are rare, and lists stay short. If not, use a	151	* objects with lists are rare, and lists stay short. If not, use a
70	* different structure or at least keep the lists sorted...	152	* different structure or at least keep the lists sorted...
71	*/	153	*/
72		154
73	/* For each field in wants, */	155	/* For each field in wants, */
74	for (wants_field = wants->key_values; wants_field != NULL; wants_field = wants_field->next)	156	for (wants_field = wants->key_values; wants_field; wants_field = wants_field->next)
75	{	157	{
76	key_value *has_field;	158	key_value *has_field;
77		159
78	/* Look for a field in has with the same key. */	160	/* Look for a field in has with the same key. */
79	has_field = get_ob_key_link (has, wants_field->key);	161	has_field = get_ob_key_link (has, wants_field->key);
…		…
113	*	195	*
114	* Note that this function appears a lot longer than the macro it	196	* Note that this function appears a lot longer than the macro it
115	* replaces - this is mostly for clarity - a decent compiler should hopefully	197	* replaces - this is mostly for clarity - a decent compiler should hopefully
116	* reduce this to the same efficiency.	198	* reduce this to the same efficiency.
117	*	199	*
118	* Check nrof variable *before* calling CAN_MERGE()	200	* Check nrof variable *before* calling can_merge()
119	*	201	*
120	* Improvements made with merge: Better checking on potion, and also	202	* Improvements made with merge: Better checking on potion, and also
121	* check weight	203	* check weight
122	*/	204	*/
123
124	bool object::can_merge (object *ob1, object *ob2)	205	bool object::can_merge_slow (object *ob1, object *ob2)
125	{	206	{
126	/* A couple quicksanity checks */	207	/* A couple quicksanity checks */
127	if ((ob1 == ob2) || (ob1->type != ob2->type))	208	if (ob1 == ob2
		209	|| ob1->type != ob2->type
		210	|| ob1->speed != ob2->speed
		211	|| ob1->value != ob2->value
		212	|| ob1->name != ob2->name)
128	return 0;	213	return 0;
129		214
130	if (ob1->speed != ob2->speed)	215	//TODO: this ain't working well, use nicer and correct overflow check
131	return 0;
132
133	/* Do not merge objects if nrof would overflow. We use 1UL<<31 since that	216	/* Do not merge objects if nrof would overflow. We use 1UL<<31 since that
134	* value could not be stored in a sint32 (which unfortunately sometimes is	217	* value could not be stored in a sint32 (which unfortunately sometimes is
135	* used to store nrof).	218	* used to store nrof).
136	*/	219	*/
137	if (ob1->nrof + ob2->nrof >= 1UL << 31)	220	if (ob1->nrof + ob2->nrof >= 1UL << 31)
…		…
147	SET_FLAG (ob1, FLAG_BEEN_APPLIED);	230	SET_FLAG (ob1, FLAG_BEEN_APPLIED);
148		231
149	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))	232	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))
150	SET_FLAG (ob2, FLAG_BEEN_APPLIED);	233	SET_FLAG (ob2, FLAG_BEEN_APPLIED);
151		234
152		235	if ((ob1->flag ^ ob2->flag).reset (FLAG_INV_LOCKED).reset (FLAG_CLIENT_SENT).any ()
153	/* the 0x400000 on flags2 is FLAG_INV_LOCK. I don't think something	236	|| ob1->arch != ob2->arch
154	* being locked in inventory should prevent merging.
155	* 0x4 in flags3 is CLIENT_SENT
156	*/
157	if ((ob1->arch != ob2->arch) ||
158	(ob1->flags[0] != ob2->flags[0]) ||
159	(ob1->flags[1] != ob2->flags[1]) ||
160	((ob1->flags[2] & ~0x400000) != (ob2->flags[2] & ~0x400000)) ||
161	((ob1->flags[3] & ~0x4) != (ob2->flags[3] & ~0x4)) ||
162	(ob1->name != ob2->name) ||	237	|| ob1->name != ob2->name
163	(ob1->title != ob2->title) ||	238	|| ob1->title != ob2->title
164	(ob1->msg != ob2->msg) ||	239	|| ob1->msg != ob2->msg
165	(ob1->weight != ob2->weight) ||	240	|| ob1->weight != ob2->weight
166	(memcmp (&ob1->resist, &ob2->resist, sizeof (ob1->resist)) != 0) ||	241	|| memcmp (&ob1->resist, &ob2->resist, sizeof (ob1->resist))
167	(memcmp (&ob1->stats, &ob2->stats, sizeof (ob1->stats)) != 0) ||	242	|| memcmp (&ob1->stats , &ob2->stats , sizeof (ob1->stats) )
168	(ob1->attacktype != ob2->attacktype) ||	243	|| ob1->attacktype != ob2->attacktype
169	(ob1->magic != ob2->magic) ||	244	|| ob1->magic != ob2->magic
170	(ob1->slaying != ob2->slaying) ||	245	|| ob1->slaying != ob2->slaying
171	(ob1->skill != ob2->skill) ||	246	|| ob1->skill != ob2->skill
172	(ob1->value != ob2->value) ||	247	|| ob1->value != ob2->value
173	(ob1->animation_id != ob2->animation_id) ||	248	|| ob1->animation_id != ob2->animation_id
174	(ob1->client_type != ob2->client_type) ||	249	|| ob1->client_type != ob2->client_type
175	(ob1->materialname != ob2->materialname) ||	250	|| ob1->materialname != ob2->materialname
176	(ob1->lore != ob2->lore) ||	251	|| ob1->lore != ob2->lore
177	(ob1->subtype != ob2->subtype) ||	252	|| ob1->subtype != ob2->subtype
178	(ob1->move_type != ob2->move_type) ||	253	|| ob1->move_type != ob2->move_type
179	(ob1->move_block != ob2->move_block) ||	254	|| ob1->move_block != ob2->move_block
180	(ob1->move_allow != ob2->move_allow) ||	255	|| ob1->move_allow != ob2->move_allow
181	(ob1->move_on != ob2->move_on) ||	256	|| ob1->move_on != ob2->move_on
182	(ob1->move_off != ob2->move_off) || (ob1->move_slow != ob2->move_slow) || (ob1->move_slow_penalty != ob2->move_slow_penalty))	257	|| ob1->move_off != ob2->move_off
		258	|| ob1->move_slow != ob2->move_slow
		259	|| ob1->move_slow_penalty != ob2->move_slow_penalty)
183	return 0;	260	return 0;
184		261
185	/* This is really a spellbook check - really, we should	262	/* This is really a spellbook check - really, we should
186	* check all objects in the inventory.	263	* check all objects in the inventory.
187	*/	264	*/
188	if (ob1->inv || ob2->inv)	265	if (ob1->inv || ob2->inv)
189	{	266	{
190	/* if one object has inventory but the other doesn't, not equiv */
191	if ((ob1->inv && !ob2->inv) || (ob2->inv && !ob1->inv))
192	return 0;
193
194	/* Now check to see if the two inventory objects could merge */
195	if (!CAN_MERGE (ob1->inv, ob2->inv))	267	if (!(ob1->inv && ob2->inv))
196	return 0;	268	return 0; /* inventories differ in length */
		269
		270	if (ob1->inv->below || ob2->inv->below)
		271	return 0; /* more than one object in inv */
		272
		273	if (!object::can_merge (ob1->inv, ob2->inv))
		274	return 0; /* inventory objexts differ */
197		275
198	/* inventory ok - still need to check rest of this object to see	276	/* inventory ok - still need to check rest of this object to see
199	* if it is valid.	277	* if it is valid.
200	*/	278	*/
201	}	279	}
…		…
209		287
210	/* Note sure why the following is the case - either the object has to	288	/* Note sure why the following is the case - either the object has to
211	* be animated or have a very low speed. Is this an attempted monster	289	* be animated or have a very low speed. Is this an attempted monster
212	* check?	290	* check?
213	*/	291	*/
214	if (!QUERY_FLAG (ob1, FLAG_ANIMATE) && FABS ((ob1)->speed) > MIN_ACTIVE_SPEED)	292	if (!QUERY_FLAG (ob1, FLAG_ANIMATE) && ob1->has_active_speed ())
215	return 0;	293	return 0;
216		294
217	switch (ob1->type)	295	switch (ob1->type)
218	{	296	{
219	case SCROLL:	297	case SCROLL:
220	if (ob1->level != ob2->level)	298	if (ob1->level != ob2->level)
221	return 0;	299	return 0;
222	break;	300	break;
223	}	301	}
224		302
225	if (ob1->key_values != NULL || ob2->key_values != NULL)	303	if (ob1->key_values != NULL || ob2->key_values != NULL)
226	{	304	{
227	/* At least one of these has key_values. */	305	/* At least one of these has key_values. */
…		…
230	return 0;	308	return 0;
231	else if (!compare_ob_value_lists (ob1, ob2))	309	else if (!compare_ob_value_lists (ob1, ob2))
232	return 0;	310	return 0;
233	}	311	}
234		312
235	//TODO: generate an event or call into perl for additional checks
236	if (ob1->self || ob2->self)	313	if (ob1->self || ob2->self)
237	{	314	{
238	ob1->optimise ();	315	ob1->optimise ();
239	ob2->optimise ();	316	ob2->optimise ();
240		317
241	if (ob1->self || ob2->self)	318	if (ob1->self || ob2->self)
		319	{
		320	int k1 = ob1->self ? HvTOTALKEYS (ob1->self) : 0;
		321	int k2 = ob2->self ? HvTOTALKEYS (ob2->self) : 0;
		322
		323	if (k1 != k2)
242	return 0;	324	return 0;
		325	else if (k1 == 0)
		326	return 1;
		327	else if (!cfperl_can_merge (ob1, ob2))
		328	return 0;
		329	}
243	}	330	}
244		331
245	/* Everything passes, must be OK. */	332	/* Everything passes, must be OK. */
246	return 1;	333	return 1;
247	}	334	}
…		…
249	/*	336	/*
250	* sum_weight() is a recursive function which calculates the weight	337	* sum_weight() is a recursive function which calculates the weight
251	* an object is carrying. It goes through in figures out how much	338	* an object is carrying. It goes through in figures out how much
252	* containers are carrying, and sums it up.	339	* containers are carrying, and sums it up.
253	*/	340	*/
254	signed long	341	long
255	sum_weight (object *op)	342	sum_weight (object *op)
256	{	343	{
257	signed long sum;	344	long sum;
258	object *inv;	345	object *inv;
259		346
260	for (sum = 0, inv = op->inv; inv != NULL; inv = inv->below)	347	for (sum = 0, inv = op->inv; inv; inv = inv->below)
261	{	348	{
262	if (inv->inv)	349	if (inv->inv)
263	sum_weight (inv);	350	sum_weight (inv);
		351
264	sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1);	352	sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1);
265	}	353	}
		354
266	if (op->type == CONTAINER && op->stats.Str)	355	if (op->type == CONTAINER && op->stats.Str)
267	sum = (sum * (100 - op->stats.Str)) / 100;	356	sum = (sum * (100 - op->stats.Str)) / 100;
		357
268	if (op->carrying != sum)	358	if (op->carrying != sum)
269	op->carrying = sum;	359	op->carrying = sum;
		360
270	return sum;	361	return sum;
271	}	362	}
272		363
273	/**	364	/**
274	* Return the outermost environment object for a given object.	365	* Return the outermost environment object for a given object.
…		…
281	op = op->env;	372	op = op->env;
282	return op;	373	return op;
283	}	374	}
284		375
285	/*	376	/*
286	* Eneq(@csd.uu.se): Since we can have items buried in a character we need
287	* a better check. We basically keeping traversing up until we can't
288	* or find a player.
289	*/
290
291	object *
292	is_player_inv (object *op)
293	{
294	for (; op != NULL && op->type != PLAYER; op = op->env)
295	if (op->env == op)
296	op->env = NULL;
297	return op;
298	}
299
300	/*
301	* Used by: Crossedit: dump. Server DM commands: dumpbelow, dump.	377	* Used by: Crossedit: dump. Server DM commands: dumpbelow, dump.
302	* Some error messages.	378	* Some error messages.
303	* The result of the dump is stored in the static global errmsg array.	379	* The result of the dump is stored in the static global errmsg array.
304	*/	380	*/
305		381	char *
306	void
307	dump_object2 (object *op)
308	{
309	errmsg[0] = 0;
310	return;
311	//TODO//D#d#
312	#if 0
313	char *cp;
314
315	/* object *tmp;*/
316
317	if (op->arch != NULL)
318	{
319	strcat (errmsg, "arch ");
320	strcat (errmsg, op->arch->name ? op->arch->name : "(null)");
321	strcat (errmsg, "\n");
322	if ((cp = get_ob_diff (op, &empty_archetype->clone)) != NULL)
323	strcat (errmsg, cp);
324	# if 0
325	/* Don't dump player diffs - they are too long, mostly meaningless, and
326	* will overflow the buffer.
327	* Changed so that we don't dump inventory either. This may
328	* also overflow the buffer.
329	*/
330	if (op->type != PLAYER && (cp = get_ob_diff (op, &empty_archetype->clone)) != NULL)
331	strcat (errmsg, cp);
332	for (tmp = op->inv; tmp; tmp = tmp->below)
333	dump_object2 (tmp);
334	# endif
335	strcat (errmsg, "end\n");
336	}
337	else
338	{
339	strcat (errmsg, "Object ");
340	if (op->name == NULL)
341	strcat (errmsg, "(null)");
342	else
343	strcat (errmsg, op->name);
344	strcat (errmsg, "\n");
345	# if 0
346	if ((cp = get_ob_diff (op, &empty_archetype->clone)) != NULL)
347	strcat (errmsg, cp);
348	for (tmp = op->inv; tmp; tmp = tmp->below)
349	dump_object2 (tmp);
350	# endif
351	strcat (errmsg, "end\n");
352	}
353	#endif
354	}
355
356	/*
357	* Dumps an object. Returns output in the static global errmsg array.
358	*/
359
360	void
361	dump_object (object *op)	382	dump_object (object *op)
362	{	383	{
363	if (op == NULL)	384	if (!op)
364	{	385	return strdup ("[NULLOBJ]");
365	strcpy (errmsg, "[NULL pointer]");
366	return;
367	}
368	errmsg[0] = '\0';
369	dump_object2 (op);
370	}
371		386
372	void	387	object_freezer freezer;
373	dump_all_objects (void)	388	op->write (freezer);
374	{	389	return freezer.as_string ();
375	object *op;
376
377	for (op = objects; op != NULL; op = op->next)
378	{
379	dump_object (op);
380	fprintf (logfile, "Object %d\n:%s\n", op->count, errmsg);
381	}
382	}	390	}
383		391
384	/*	392	/*
385	* get_nearest_part(multi-object, object 2) returns the part of the	393	* get_nearest_part(multi-object, object 2) returns the part of the
386	* multi-object 1 which is closest to the second object.	394	* multi-object 1 which is closest to the second object.
387	* If it's not a multi-object, it is returned.	395	* If it's not a multi-object, it is returned.
388	*/	396	*/
389
390	object *	397	object *
391	get_nearest_part (object *op, const object *pl)	398	get_nearest_part (object *op, const object *pl)
392	{	399	{
393	object *tmp, *closest;	400	object *tmp, *closest;
394	int last_dist, i;	401	int last_dist, i;
…		…
402	}	409	}
403		410
404	/*	411	/*
405	* Returns the object which has the count-variable equal to the argument.	412	* Returns the object which has the count-variable equal to the argument.
406	*/	413	*/
407
408	object *	414	object *
409	find_object (tag_t i)	415	find_object (tag_t i)
410	{	416	{
411	object *op;	417	for_all_objects (op)
412
413	for (op = objects; op != NULL; op = op->next)
414	if (op->count == i)	418	if (op->count == i)
415	break;
416	return op;	419	return op;
		420
		421	return 0;
417	}	422	}
418		423
419	/*	424	/*
420	* Returns the first object which has a name equal to the argument.	425	* Returns the first object which has a name equal to the argument.
421	* Used only by the patch command, but not all that useful.	426	* Used only by the patch command, but not all that useful.
422	* Enables features like "patch <name-of-other-player> food 999"	427	* Enables features like "patch <name-of-other-player> food 999"
423	*/	428	*/
424
425	object *	429	object *
426	find_object_name (const char *str)	430	find_object_name (const char *str)
427	{	431	{
428	const char *name = shstr::find (str);	432	shstr_cmp str_ (str);
429	object *op;	433	object *op;
430		434
431	for (op = objects; op != NULL; op = op->next)	435	for_all_objects (op)
432	if (&op->name == name)	436	if (op->name == str_)
433	break;	437	break;
434		438
435	return op;	439	return op;
436	}
437
438	void
439	free_all_object_data ()
440	{
441	LOG (llevDebug, "%d allocated objects\n", nrofallocobjects);
442	}
443
444	/*
445	* Returns the object which this object marks as being the owner.
446	* A id-scheme is used to avoid pointing to objects which have been
447	* freed and are now reused. If this is detected, the owner is
448	* set to NULL, and NULL is returned.
449	* Changed 2004-02-12 - if the player is setting at the play again
450	* prompt, he is removed, and we don't want to treat him as an owner of
451	* anything, so check removed flag. I don't expect that this should break
452	* anything - once an object is removed, it is basically dead anyways.
453	*/
454
455	object *
456	get_owner (object *op)
457	{
458	if (op->owner == NULL)
459	return NULL;
460
461	if (!QUERY_FLAG (op->owner, FLAG_FREED) && !QUERY_FLAG (op->owner, FLAG_REMOVED) && op->owner->count == op->ownercount)
462	return op->owner;
463
464	op->owner = NULL;
465	op->ownercount = 0;
466	return NULL;
467	}
468
469	void
470	clear_owner (object *op)
471	{
472	if (!op)
473	return;
474
475	if (op->owner && op->ownercount == op->owner->count)
476	op->owner->refcount--;
477
478	op->owner = NULL;
479	op->ownercount = 0;
480	}	440	}
481		441
482	/*	442	/*
483	* Sets the owner and sets the skill and exp pointers to owner's current	443	* Sets the owner and sets the skill and exp pointers to owner's current
484	* skill and experience objects.	444	* skill and experience objects.
		445	* ACTUALLY NO! investigate! TODO
485	*/	446	*/
486	void	447	void
487	set_owner (object *op, object *owner)	448	object::set_owner (object *owner)
488	{	449	{
489	if (owner == NULL || op == NULL)	450	// allow objects which own objects
490	return;	451	if (owner)
491		452	while (owner->owner)
492	/* next line added to allow objects which own objects */
493	/* Add a check for ownercounts in here, as I got into an endless loop
494	* with the fireball owning a poison cloud which then owned the
495	* fireball. I believe that was caused by one of the objects getting
496	* freed and then another object replacing it. Since the ownercounts
497	* didn't match, this check is valid and I believe that cause is valid.
498	*/
499	while (owner->owner && owner != owner->owner && owner->ownercount == owner->owner->count)
500	owner = owner->owner;	453	owner = owner->owner;
501		454
502	/* IF the owner still has an owner, we did not resolve to a final owner.	455	if (flag [FLAG_FREED])
503	* so lets not add to that.
504	*/
505	if (owner->owner)
506	return;
507
508	op->owner = owner;
509
510	op->ownercount = owner->count;
511	owner->refcount++;
512	}
513
514	/* Set the owner to clone's current owner and set the skill and experience
515	* objects to clone's objects (typically those objects that where the owner's
516	* current skill and experience objects at the time when clone's owner was
517	* set - not the owner's current skill and experience objects).
518	*
519	* Use this function if player created an object (e.g. fire bullet, swarm
520	* spell), and this object creates further objects whose kills should be
521	* accounted for the player's original skill, even if player has changed
522	* skills meanwhile.
523	*/
524	void
525	copy_owner (object *op, object *clone)
526	{
527	object *owner = get_owner (clone);
528
529	if (owner == NULL)
530	{	456	{
531	/* players don't have owners - they own themselves. Update	457	LOG (llevError | logBacktrace, "tried to set owner of %s to %s\n", debug_desc (), owner->debug_desc ());
532	* as appropriate.
533	*/
534	if (clone->type == PLAYER)
535	owner = clone;
536	else
537	return;	458	return;
		459	}
		460
		461	this->owner = owner;
		462	}
		463
		464	int
		465	object::slottype () const
		466	{
		467	if (type == SKILL)
538	}	468	{
		469	if (IS_COMBAT_SKILL (subtype)) return slot_combat;
		470	if (IS_RANGED_SKILL (subtype)) return slot_ranged;
		471	}
		472	else
		473	{
		474	if (slot [body_combat].info) return slot_combat;
		475	if (slot [body_range ].info) return slot_ranged;
		476	}
		477
		478	return slot_none;
		479	}
539		480
540	set_owner (op, owner);	481	bool
		482	object::change_weapon (object *ob)
		483	{
		484	if (current_weapon == ob)
		485	return true;
		486
		487	if (chosen_skill)
		488	chosen_skill->flag [FLAG_APPLIED] = false;
		489
		490	current_weapon = ob;
		491	chosen_skill = !ob || ob->type == SKILL ? ob : find_skill_by_name (this, ob->skill);
		492
		493	if (chosen_skill)
		494	chosen_skill->flag [FLAG_APPLIED] = true;
		495
		496	update_stats ();
		497
		498	if (ob)
		499	{
		500	// now check wether any body locations became invalid, in which case
		501	// we cannot apply the weapon at the moment.
		502	for (int i = 0; i < NUM_BODY_LOCATIONS; ++i)
		503	if (slot[i].used < 0)
		504	{
		505	current_weapon = chosen_skill = 0;
		506	update_stats ();
		507
		508	new_draw_info_format (NDI_UNIQUE, 0, this,
		509	"You try to balance all your items at once, "
		510	"but the %s is just too much for your body. "
		511	"[You need to unapply some items first.]", &ob->name);
		512	return false;
		513	}
		514
		515	//new_draw_info_format (NDI_UNIQUE, 0, this, "You switch to your %s.", &ob->name);
		516	}
		517	else
		518	;//new_draw_info_format (NDI_UNIQUE, 0, this, "You unwield your weapons.");
		519
		520	if (ob && !ob->flag [FLAG_APPLIED] && ob->type != SPELL)
		521	{
		522	LOG (llevError | logBacktrace, "%s changed to unapplied weapon %s",
		523	&name, ob->debug_desc ());
		524	return false;
		525	}
		526
		527	return true;
541	}	528	}
542		529
543	/* Zero the key_values on op, decrementing the shared-string	530	/* Zero the key_values on op, decrementing the shared-string
544	* refcounts and freeing the links.	531	* refcounts and freeing the links.
545	*/	532	*/
546	static void	533	static void
547	free_key_values (object *op)	534	free_key_values (object *op)
548	{	535	{
549	for (key_value *i = op->key_values; i != 0;)	536	for (key_value *i = op->key_values; i; )
550	{	537	{
551	key_value *next = i->next;	538	key_value *next = i->next;
552	delete i;	539	delete i;
553		540
554	i = next;	541	i = next;
555	}	542	}
556		543
557	op->key_values = 0;	544	op->key_values = 0;
558	}	545	}
559		546
560	void object::clear ()	547	object &
		548	object::operator =(const object &src)
561	{	549	{
562	attachable_base::clear ();	550	bool is_freed = flag [FLAG_FREED];
		551	bool is_removed = flag [FLAG_REMOVED];
563		552
564	free_key_values (this);	553	*(object_copy *)this = src;
565		554
566	clear_owner (this);	555	flag [FLAG_FREED] = is_freed;
567		556	flag [FLAG_REMOVED] = is_removed;
568	name = 0;
569	name_pl = 0;
570	title = 0;
571	race = 0;
572	slaying = 0;
573	skill = 0;
574	msg = 0;
575	lore = 0;
576	custom_name = 0;
577	materialname = 0;
578
579	memset (static_cast < object_pod * >(this), 0, sizeof (object_pod));
580
581	SET_FLAG (this, FLAG_REMOVED);
582	}
583
584	void object::clone (object *destination)
585	{
586	*(object_copy *) destination = *this;
587	*(object_pod *) destination = *this;
588
589	if (self || cb)
590	INVOKE_OBJECT (CLONE, this, ARG_OBJECT (destination));
591	}
592
593	/*
594	* clear_object() frees everything allocated by an object, and also
595	* clears all variables and flags to default settings.
596	*/
597
598	void
599	clear_object (object *op)
600	{
601	op->clear ();
602
603	op->contr = NULL;
604	op->below = NULL;
605	op->above = NULL;
606	op->inv = NULL;
607	op->container = NULL;
608	op->env = NULL;
609	op->more = NULL;
610	op->head = NULL;
611	op->map = NULL;
612	op->refcount = 0;
613	op->active_next = NULL;
614	op->active_prev = NULL;
615	/* What is not cleared is next, prev, and count */
616
617	op->expmul = 1.0;
618	op->face = blank_face;
619	op->attacked_by_count = -1;
620
621	if (settings.casting_time)
622	op->casting_time = -1;
623	}
624
625	/*
626	* copy object first frees everything allocated by the second object,
627	* and then copies the contends of the first object into the second
628	* object, allocating what needs to be allocated. Basically, any
629	* data that is malloc'd needs to be re-malloc/copied. Otherwise,
630	* if the first object is freed, the pointers in the new object
631	* will point at garbage.
632	*/
633
634	void
635	copy_object (object *op2, object *op)
636	{
637	bool is_freed = QUERY_FLAG (op, FLAG_FREED);
638	bool is_removed = QUERY_FLAG (op, FLAG_REMOVED);
639
640	op2->clone (op);
641
642	if (is_freed)
643	SET_FLAG (op, FLAG_FREED);
644	if (is_removed)
645	SET_FLAG (op, FLAG_REMOVED);
646
647	if (op2->speed < 0)
648	op->speed_left = op2->speed_left - RANDOM () % 200 / 100.0;
649		557
650	/* Copy over key_values, if any. */	558	/* Copy over key_values, if any. */
651	if (op2->key_values)	559	if (src.key_values)
652	{	560	{
653	key_value *tail = 0;	561	key_value *tail = 0;
654	key_value *i;
655
656	op->key_values = 0;	562	key_values = 0;
657		563
658	for (i = op2->key_values; i; i = i->next)	564	for (key_value *i = src.key_values; i; i = i->next)
659	{	565	{
660	key_value *new_link = new key_value;	566	key_value *new_link = new key_value;
661		567
662	new_link->next = 0;	568	new_link->next = 0;
663	new_link->key = i->key;	569	new_link->key = i->key;
664	new_link->value = i->value;	570	new_link->value = i->value;
665		571
666	/* Try and be clever here, too. */	572	/* Try and be clever here, too. */
667	if (!op->key_values)	573	if (!key_values)
668	{	574	{
669	op->key_values = new_link;	575	key_values = new_link;
670	tail = new_link;	576	tail = new_link;
671	}	577	}
672	else	578	else
673	{	579	{
674	tail->next = new_link;	580	tail->next = new_link;
675	tail = new_link;	581	tail = new_link;
676	}	582	}
677	}	583	}
678	}	584	}
		585	}
679		586
680	update_ob_speed (op);	587	/*
		588	* copy_to first frees everything allocated by the dst object,
		589	* and then copies the contents of itself into the second
		590	* object, allocating what needs to be allocated. Basically, any
		591	* data that is malloc'd needs to be re-malloc/copied. Otherwise,
		592	* if the first object is freed, the pointers in the new object
		593	* will point at garbage.
		594	*/
		595	void
		596	object::copy_to (object *dst)
		597	{
		598	*dst = *this;
		599
		600	if (speed < 0)
		601	dst->speed_left -= rndm ();
		602
		603	dst->set_speed (dst->speed);
		604	}
		605
		606	void
		607	object::instantiate ()
		608	{
		609	if (!uuid.seq) // HACK
		610	uuid = UUID::gen ();
		611
		612	speed_left = -0.1f;
		613	/* copy the body_info to the body_used - this is only really
		614	* need for monsters, but doesn't hurt to do it for everything.
		615	* by doing so, when a monster is created, it has good starting
		616	* values for the body_used info, so when items are created
		617	* for it, they can be properly equipped.
		618	*/
		619	for (int i = NUM_BODY_LOCATIONS; i--; )
		620	slot[i].used = slot[i].info;
		621
		622	attachable::instantiate ();
		623	}
		624
		625	object *
		626	object::clone ()
		627	{
		628	object *neu = create ();
		629	copy_to (neu);
		630	return neu;
681	}	631	}
682		632
683	/*	633	/*
684	* If an object with the IS_TURNABLE() flag needs to be turned due	634	* If an object with the IS_TURNABLE() flag needs to be turned due
685	* to the closest player being on the other side, this function can	635	* to the closest player being on the other side, this function can
686	* be called to update the face variable, _and_ how it looks on the map.	636	* be called to update the face variable, _and_ how it looks on the map.
687	*/	637	*/
688
689	void	638	void
690	update_turn_face (object *op)	639	update_turn_face (object *op)
691	{	640	{
692	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || op->arch == NULL)	641	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || !op->arch)
693	return;	642	return;
		643
694	SET_ANIMATION (op, op->direction);	644	SET_ANIMATION (op, op->direction);
695	update_object (op, UP_OBJ_FACE);	645	update_object (op, UP_OBJ_FACE);
696	}	646	}
697		647
698	/*	648	/*
699	* Updates the speed of an object. If the speed changes from 0 to another	649	* Updates the speed of an object. If the speed changes from 0 to another
700	* value, or vice versa, then add/remove the object from the active list.	650	* value, or vice versa, then add/remove the object from the active list.
701	* This function needs to be called whenever the speed of an object changes.	651	* This function needs to be called whenever the speed of an object changes.
702	*/	652	*/
703
704	void	653	void
705	update_ob_speed (object *op)	654	object::set_speed (float speed)
706	{	655	{
707	extern int arch_init;	656	if (flag [FLAG_FREED] && speed)
708
709	/* No reason putting the archetypes objects on the speed list,
710	* since they never really need to be updated.
711	*/
712
713	if (QUERY_FLAG (op, FLAG_FREED) && op->speed)
714	{	657	{
715	LOG (llevError, "Object %s is freed but has speed.\n", &op->name);	658	LOG (llevError, "Object %s is freed but has speed.\n", &name);
716	#ifdef MANY_CORES
717	abort ();
718	#else
719	op->speed = 0;	659	speed = 0;
720	#endif
721	}
722	if (arch_init)
723	{	660	}
724	return;
725	}
726	if (FABS (op->speed) > MIN_ACTIVE_SPEED)
727	{
728	/* If already on active list, don't do anything */
729	if (op->active_next || op->active_prev || op == active_objects)
730	return;
731		661
732	/* process_events() expects us to insert the object at the beginning	662	this->speed = speed;
733	* of the list. */	663
734	op->active_next = active_objects;	664	if (has_active_speed ())
735	if (op->active_next != NULL)	665	activate ();
736	op->active_next->active_prev = op;
737	active_objects = op;
738	}
739	else	666	else
740	{	667	deactivate ();
741	/* If not on the active list, nothing needs to be done */
742	if (!op->active_next && !op->active_prev && op != active_objects)
743	return;
744
745	if (op->active_prev == NULL)
746	{
747	active_objects = op->active_next;
748	if (op->active_next != NULL)
749	op->active_next->active_prev = NULL;
750	}
751	else
752	{
753	op->active_prev->active_next = op->active_next;
754	if (op->active_next)
755	op->active_next->active_prev = op->active_prev;
756	}
757	op->active_next = NULL;
758	op->active_prev = NULL;
759	}
760	}	668	}
761		669
762	/* This function removes object 'op' from the list of active
763	* objects.
764	* This should only be used for style maps or other such
765	* reference maps where you don't want an object that isn't
766	* in play chewing up cpu time getting processed.
767	* The reverse of this is to call update_ob_speed, which
768	* will do the right thing based on the speed of the object.
769	*/
770	void
771	remove_from_active_list (object *op)
772	{
773	/* If not on the active list, nothing needs to be done */
774	if (!op->active_next && !op->active_prev && op != active_objects)
775	return;
776
777	if (op->active_prev == NULL)
778	{
779	active_objects = op->active_next;
780	if (op->active_next != NULL)
781	op->active_next->active_prev = NULL;
782	}
783	else
784	{
785	op->active_prev->active_next = op->active_next;
786	if (op->active_next)
787	op->active_next->active_prev = op->active_prev;
788	}
789	op->active_next = NULL;
790	op->active_prev = NULL;
791	}
792
793	/*	670	/*
794	* update_object() updates the array which represents the map.	671	* update_object() updates the the map.
795	* It takes into account invisible objects (and represent squares covered	672	* It takes into account invisible objects (and represent squares covered
796	* by invisible objects by whatever is below them (unless it's another	673	* by invisible objects by whatever is below them (unless it's another
797	* invisible object, etc...)	674	* invisible object, etc...)
798	* If the object being updated is beneath a player, the look-window	675	* If the object being updated is beneath a player, the look-window
799	* of that player is updated (this might be a suboptimal way of	676	* of that player is updated (this might be a suboptimal way of
800	* updating that window, though, since update_object() is called _often_)	677	* updating that window, though, since update_object() is called _often_)
801	*	678	*
802	* action is a hint of what the caller believes need to be done.	679	* action is a hint of what the caller believes need to be done.
803	* For example, if the only thing that has changed is the face (due to
804	* an animation), we don't need to call update_position until that actually
805	* comes into view of a player. OTOH, many other things, like addition/removal
806	* of walls or living creatures may need us to update the flags now.
807	* current action are:	680	* current action are:
808	* UP_OBJ_INSERT: op was inserted	681	* UP_OBJ_INSERT: op was inserted
809	* UP_OBJ_REMOVE: op was removed	682	* UP_OBJ_REMOVE: op was removed
810	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update	683	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update
811	* as that is easier than trying to look at what may have changed.	684	* as that is easier than trying to look at what may have changed.
812	* UP_OBJ_FACE: only the objects face has changed.	685	* UP_OBJ_FACE: only the objects face has changed.
813	*/	686	*/
814
815	void	687	void
816	update_object (object *op, int action)	688	update_object (object *op, int action)
817	{	689	{
818	int update_now = 0, flags;
819	MoveType move_on, move_off, move_block, move_slow;
820
821	if (op == NULL)	690	if (op == NULL)
822	{	691	{
823	/* this should never happen */	692	/* this should never happen */
824	LOG (llevDebug, "update_object() called for NULL object.\n");	693	LOG (llevDebug, "update_object() called for NULL object.\n");
825	return;	694	return;
826	}	695	}
827		696
828	if (op->env != NULL)	697	if (op->env)
829	{	698	{
830	/* Animation is currently handled by client, so nothing	699	/* Animation is currently handled by client, so nothing
831	* to do in this case.	700	* to do in this case.
832	*/	701	*/
833	return;	702	return;
…		…
838	*/	707	*/
839	if (!op->map || op->map->in_memory == MAP_SAVING)	708	if (!op->map || op->map->in_memory == MAP_SAVING)
840	return;	709	return;
841		710
842	/* make sure the object is within map boundaries */	711	/* make sure the object is within map boundaries */
843	if (op->x < 0 || op->x >= MAP_WIDTH (op->map) || op->y < 0 || op->y >= MAP_HEIGHT (op->map))	712	if (op->x < 0 || op->x >= op->map->width || op->y < 0 || op->y >= op->map->height)
844	{	713	{
845	LOG (llevError, "update_object() called for object out of map!\n");	714	LOG (llevError, "update_object() called for object out of map!\n");
846	#ifdef MANY_CORES	715	#ifdef MANY_CORES
847	abort ();	716	abort ();
848	#endif	717	#endif
849	return;	718	return;
850	}	719	}
851		720
852	flags = GET_MAP_FLAGS (op->map, op->x, op->y);	721	mapspace &m = op->ms ();
853	SET_MAP_FLAGS (op->map, op->x, op->y, flags | P_NEED_UPDATE);
854	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);
855	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);
856	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);
857	move_off = GET_MAP_MOVE_OFF (op->map, op->x, op->y);
858		722
		723	if (!(m.flags_ & P_UPTODATE))
		724	/* nop */;
859	if (action == UP_OBJ_INSERT)	725	else if (action == UP_OBJ_INSERT)
860	{	726	{
		727	// this is likely overkill, TODO: revisit (schmorp)
861	if (QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(flags & P_BLOCKSVIEW))	728	if ((QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(m.flags_ & P_BLOCKSVIEW))
862	update_now = 1;
863
864	if (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(flags & P_NO_MAGIC))	729	|| (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(m.flags_ & P_NO_MAGIC))
865	update_now = 1;	730	|| (op->type == PLAYER && !(m.flags_ & P_PLAYER))
866		731	|| (op->type == SAFE_GROUND && !(m.flags_ & P_SAFE))
		732	|| (QUERY_FLAG (op, FLAG_ALIVE) && !(m.flags_ & P_IS_ALIVE))
867	if (QUERY_FLAG (op, FLAG_DAMNED) && !(flags & P_NO_CLERIC))	733	|| (QUERY_FLAG (op, FLAG_DAMNED) && !(m.flags_ & P_NO_CLERIC))
868	update_now = 1;
869
870	if (QUERY_FLAG (op, FLAG_ALIVE) && !(flags & P_IS_ALIVE))
871	update_now = 1;
872
873	if (op->type == SAFE_GROUND && !(flags & P_SAFE))
874	update_now = 1;
875
876	if ((move_on | op->move_on) != move_on)	734	|| (m.move_on | op->move_on ) != m.move_on
877	update_now = 1;
878
879	if ((move_off | op->move_off) != move_off)	735	|| (m.move_off | op->move_off ) != m.move_off
880	update_now = 1;	736	|| (m.move_slow | op->move_slow) != m.move_slow
881
882	/* This isn't perfect, but I don't expect a lot of objects to	737	/* This isn't perfect, but I don't expect a lot of objects to
883	* to have move_allow right now.	738	* to have move_allow right now.
884	*/	739	*/
885	if (((move_block | op->move_block) & ~op->move_allow) != move_block)	740	|| ((m.move_block | op->move_block) & ~op->move_allow) != m.move_block
886	update_now = 1;	741	|| 1) // the above is not strong enough a test to skip updating. los maybe? TODO (Schmorp)
887		742	m.flags_ = 0;
888	if ((move_slow | op->move_slow) != move_slow)
889	update_now = 1;
890	}	743	}
891	/* if the object is being removed, we can't make intelligent	744	/* if the object is being removed, we can't make intelligent
892	* decisions, because remove_ob can't really pass the object	745	* decisions, because remove_ob can't really pass the object
893	* that is being removed.	746	* that is being removed.
894	*/	747	*/
895	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)	748	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)
896	{	749	m.flags_ = 0;
897	update_now = 1;
898	}
899	else if (action == UP_OBJ_FACE)	750	else if (action == UP_OBJ_FACE)
900	{
901	/* Nothing to do for that case */	751	/* Nothing to do for that case */ ;
902	}
903	else	752	else
904	{
905	LOG (llevError, "update_object called with invalid action: %d\n", action);	753	LOG (llevError, "update_object called with invalid action: %d\n", action);
906	}
907		754
908	if (update_now)
909	{
910	SET_MAP_FLAGS (op->map, op->x, op->y, flags | P_NO_ERROR | P_NEED_UPDATE);
911	update_position (op->map, op->x, op->y);
912	}
913
914	if (op->more != NULL)	755	if (op->more)
915	update_object (op->more, action);	756	update_object (op->more, action);
916	}
917
918	static unordered_vector<object *> mortals;
919	static std::vector<object *> freed;
920
921	void object::free_mortals ()
922	{
923	for (unordered_vector<object *>::iterator i = mortals.begin (); i != mortals.end (); )
924	if (!(*i)->refcount)
925	{
926	freed.push_back (*i);
927	mortals.erase (i);
928	}
929	else
930	++i;
931	}	757	}
932		758
933	object::object ()	759	object::object ()
934	{	760	{
935	SET_FLAG (this, FLAG_REMOVED);	761	SET_FLAG (this, FLAG_REMOVED);
936		762
937	expmul = 1.0;	763	expmul = 1.0;
938	face = blank_face;	764	face = blank_face;
939	attacked_by_count = -1;
940	}	765	}
941		766
942	object::~object ()	767	object::~object ()
943	{	768	{
		769	unlink ();
		770
944	free_key_values (this);	771	free_key_values (this);
945	}	772	}
946		773
		774	static int object_count;
		775
947	void object::link ()	776	void object::link ()
948	{	777	{
		778	assert (!index);//D
		779	uuid = UUID::gen ();
949	count = ++ob_count;	780	count = ++object_count;
950		781
951	prev = 0;	782	refcnt_inc ();
952	next = objects;	783	objects.insert (this);
953
954	if (objects)
955	objects->prev = this;
956
957	objects = this;
958	}	784	}
959		785
960	void object::unlink ()	786	void object::unlink ()
961	{	787	{
962	count = 0;
963
964	/* Remove this object from the list of used objects */
965	if (prev)
966	{
967	prev->next = next;
968	prev = 0;
969	}
970
971	if (next)	788	if (!index)
972	{	789	return;
973	next->prev = prev;	790
974	next = 0;	791	objects.erase (this);
		792	refcnt_dec ();
		793	}
		794
		795	void
		796	object::activate ()
		797	{
		798	/* If already on active list, don't do anything */
		799	if (active)
		800	return;
		801
		802	if (has_active_speed ())
		803	actives.insert (this);
		804	}
		805
		806	void
		807	object::activate_recursive ()
		808	{
		809	activate ();
		810
		811	for (object *op = inv; op; op = op->below)
		812	op->activate_recursive ();
		813	}
		814
		815	/* This function removes object 'op' from the list of active
		816	* objects.
		817	* This should only be used for style maps or other such
		818	* reference maps where you don't want an object that isn't
		819	* in play chewing up cpu time getting processed.
		820	* The reverse of this is to call update_ob_speed, which
		821	* will do the right thing based on the speed of the object.
		822	*/
		823	void
		824	object::deactivate ()
		825	{
		826	/* If not on the active list, nothing needs to be done */
		827	if (!active)
		828	return;
		829
		830	actives.erase (this);
		831	}
		832
		833	void
		834	object::deactivate_recursive ()
		835	{
		836	for (object *op = inv; op; op = op->below)
		837	op->deactivate_recursive ();
		838
		839	deactivate ();
		840	}
		841
		842	void
		843	object::set_flag_inv (int flag, int value)
		844	{
		845	for (object *op = inv; op; op = op->below)
975	}	846	{
		847	op->flag [flag] = value;
		848	op->set_flag_inv (flag, value);
		849	}
		850	}
976		851
977	if (this == objects)	852	/*
978	objects = next;	853	* Remove and free all objects in the inventory of the given object.
		854	* object.c ?
		855	*/
		856	void
		857	object::destroy_inv (bool drop_to_ground)
		858	{
		859	// need to check first, because the checks below might segfault
		860	// as we might be on an invalid mapspace and crossfire code
		861	// is too buggy to ensure that the inventory is empty.
		862	// corollary: if you create arrows etc. with stuff in tis inventory,
		863	// cf will crash below with off-map x and y
		864	if (!inv)
		865	return;
		866
		867	/* Only if the space blocks everything do we not process -
		868	* if some form of movement is allowed, let objects
		869	* drop on that space.
		870	*/
		871	if (!drop_to_ground
		872	|| !map
		873	|| map->in_memory != MAP_IN_MEMORY
		874	|| map->nodrop
		875	|| ms ().move_block == MOVE_ALL)
		876	{
		877	while (inv)
		878	{
		879	inv->destroy_inv (drop_to_ground);
		880	inv->destroy ();
		881	}
		882	}
		883	else
		884	{ /* Put objects in inventory onto this space */
		885	while (inv)
		886	{
		887	object *op = inv;
		888
		889	if (op->flag [FLAG_STARTEQUIP]
		890	|| op->flag [FLAG_NO_DROP]
		891	|| op->type == RUNE
		892	|| op->type == TRAP
		893	|| op->flag [FLAG_IS_A_TEMPLATE]
		894	|| op->flag [FLAG_DESTROY_ON_DEATH])
		895	op->destroy ();
		896	else
		897	map->insert (op, x, y);
		898	}
		899	}
979	}	900	}
980		901
981	object *object::create ()	902	object *object::create ()
982	{	903	{
983	object *op;
984
985	if (freed.empty ())
986	op = new object;	904	object *op = new object;
987	else
988	{
989	// highly annoying, but the only way to get it stable right now
990	op = freed.back (); freed.pop_back ();
991	op->~object ();
992	new ((void *)op) object;
993	}
994
995	op->link ();	905	op->link ();
996	return op;	906	return op;
997	}	907	}
998		908
999	/*	909	void
1000	* free_object() frees everything allocated by an object, removes	910	object::do_destroy ()
1001	* it from the list of used objects, and puts it on the list of
1002	* free objects. The IS_FREED() flag is set in the object.
1003	* The object must have been removed by remove_ob() first for
1004	* this function to succeed.
1005	*
1006	* If free_inventory is set, free inventory as well. Else drop items in
1007	* inventory to the ground.
1008	*/
1009	void object::free (bool free_inventory)
1010	{	911	{
1011	if (!QUERY_FLAG (this, FLAG_REMOVED))	912	attachable::do_destroy ();
1012	{
1013	LOG (llevDebug, "Free object called with non removed object\n");
1014	dump_object (this);
1015	#ifdef MANY_CORES
1016	abort ();
1017	#endif
1018	}
1019		913
1020	if (QUERY_FLAG (this, FLAG_FRIENDLY))	914	if (flag [FLAG_IS_LINKED])
1021	{	915	remove_button_link (this);
1022	LOG (llevMonster, "Warning: tried to free friendly object.\n");	916
		917	if (flag [FLAG_FRIENDLY])
1023	remove_friendly_object (this);	918	remove_friendly_object (this);
1024	}
1025		919
1026	if (QUERY_FLAG (this, FLAG_FREED))	920	if (!flag [FLAG_REMOVED])
		921	remove ();
		922
		923	destroy_inv (true);
		924
		925	deactivate ();
		926	unlink ();
		927
		928	flag [FLAG_FREED] = 1;
		929
		930	// hack to ensure that freed objects still have a valid map
		931	{
		932	static maptile *freed_map; // freed objects are moved here to avoid crashes
		933
		934	if (!freed_map)
1027	{	935	{
1028	dump_object (this);	936	freed_map = new maptile;
1029	LOG (llevError, "Trying to free freed object.\n%s\n", errmsg);	937
1030	return;	938	freed_map->path = "<freed objects map>";
		939	freed_map->name = "/internal/freed_objects_map";
		940	freed_map->width = 3;
		941	freed_map->height = 3;
		942	freed_map->nodrop = 1;
		943
		944	freed_map->alloc ();
		945	freed_map->in_memory = MAP_IN_MEMORY;
1031	}	946	}
		947
		948	map = freed_map;
		949	x = 1;
		950	y = 1;
		951	}
1032		952
1033	if (more)	953	if (more)
1034	{	954	{
1035	more->free (free_inventory);	955	more->destroy ();
1036	more = 0;	956	more = 0;
1037	}	957	}
1038		958
1039	if (inv)
1040	{
1041	/* Only if the space blocks everything do we not process -
1042	* if some form of movement is allowed, let objects
1043	* drop on that space.
1044	*/
1045	if (free_inventory || !map || map->in_memory != MAP_IN_MEMORY || (GET_MAP_MOVE_BLOCK (map, x, y) == MOVE_ALL))
1046	{
1047	object *
1048	op = inv;
1049
1050	while (op)
1051	{
1052	object *
1053	tmp = op->below;
1054
1055	remove_ob (op);
1056	op->free (free_inventory);
1057	op = tmp;
1058	}
1059	}
1060	else
1061	{ /* Put objects in inventory onto this space */
1062	object *
1063	op = inv;
1064
1065	while (op)
1066	{
1067	object *
1068	tmp = op->below;
1069
1070	remove_ob (op);
1071
1072	if (QUERY_FLAG (op, FLAG_STARTEQUIP)
1073	|| QUERY_FLAG (op, FLAG_NO_DROP) || op->type == RUNE || op->type == TRAP || QUERY_FLAG (op, FLAG_IS_A_TEMPLATE))
1074	free_object (op);
1075	else
1076	{
1077	op->x = x;
1078	op->y = y;
1079	insert_ob_in_map (op, map, 0, 0); /* Insert in same map as the envir */
1080	}
1081
1082	op = tmp;
1083	}
1084	}
1085	}
1086
1087	clear_owner (this);
1088
1089	/* Remove object from the active list */
1090	speed = 0;	959	head = 0;
1091	update_ob_speed (this);
1092		960
1093	unlink ();	961	// clear those pointers that likely might cause circular references
		962	owner = 0;
		963	enemy = 0;
		964	attacked_by = 0;
		965	current_weapon = 0;
		966	}
1094		967
1095	SET_FLAG (this, FLAG_FREED);	968	void
		969	object::destroy (bool destroy_inventory)
		970	{
		971	if (destroyed ())
		972	return;
1096		973
1097	mortals.push_back (this);	974	if (destroy_inventory)
		975	destroy_inv (false);
		976
		977	if (is_head ())
		978	if (sound_destroy)
		979	play_sound (sound_destroy);
		980	else if (flag [FLAG_MONSTER])
		981	play_sound (sound_find ("monster_destroy")); // quick hack, too lazy to create a generic mechanism
		982
		983	attachable::destroy ();
1098	}	984	}
1099		985
1100	/*	986	/*
1101	* sub_weight() recursively (outwards) subtracts a number from the	987	* sub_weight() recursively (outwards) subtracts a number from the
1102	* weight of an object (and what is carried by it's environment(s)).	988	* weight of an object (and what is carried by it's environment(s)).
1103	*/	989	*/
1104
1105	void	990	void
1106	sub_weight (object *op, signed long weight)	991	sub_weight (object *op, signed long weight)
1107	{	992	{
1108	while (op != NULL)	993	while (op != NULL)
1109	{	994	{
1110	if (op->type == CONTAINER)	995	if (op->type == CONTAINER)
1111	{
1112	weight = (signed long) (weight * (100 - op->stats.Str) / 100);	996	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1113	}	997
1114	op->carrying -= weight;	998	op->carrying -= weight;
1115	op = op->env;	999	op = op->env;
1116	}	1000	}
1117	}	1001	}
1118		1002
1119	/* remove_ob(op):	1003	/* op->remove ():
1120	* This function removes the object op from the linked list of objects	1004	* This function removes the object op from the linked list of objects
1121	* which it is currently tied to. When this function is done, the	1005	* which it is currently tied to. When this function is done, the
1122	* object will have no environment. If the object previously had an	1006	* object will have no environment. If the object previously had an
1123	* environment, the x and y coordinates will be updated to	1007	* environment, the x and y coordinates will be updated to
1124	* the previous environment.	1008	* the previous environment.
1125	* Beware: This function is called from the editor as well!
1126	*/	1009	*/
1127
1128	void	1010	void
1129	remove_ob (object *op)	1011	object::do_remove ()
1130	{	1012	{
1131	object *tmp, *last = NULL;	1013	object *tmp, *last = 0;
1132	object *otmp;	1014	object *otmp;
1133		1015
1134	tag_t tag;
1135	int check_walk_off;
1136	mapstruct *m;
1137
1138	sint16 x, y;
1139
1140	if (QUERY_FLAG (op, FLAG_REMOVED))	1016	if (QUERY_FLAG (this, FLAG_REMOVED))
1141	{	1017	return;
1142	dump_object (op);
1143	LOG (llevError, "Trying to remove removed object.\n%s\n", errmsg);
1144		1018
1145	/* Changed it to always dump core in this case. As has been learned
1146	* in the past, trying to recover from errors almost always
1147	* make things worse, and this is a real error here - something
1148	* that should not happen.
1149	* Yes, if this was a mission critical app, trying to do something
1150	* to recover may make sense, but that is because failure of the app
1151	* may have other disastrous problems. Cf runs out of a script
1152	* so is easily enough restarted without any real problems.
1153	* MSW 2001-07-01
1154	*/
1155	abort ();
1156	}
1157
1158	if (op->more != NULL)
1159	remove_ob (op->more);
1160
1161	SET_FLAG (op, FLAG_REMOVED);	1019	SET_FLAG (this, FLAG_REMOVED);
		1020	INVOKE_OBJECT (REMOVE, this);
		1021
		1022	if (more)
		1023	more->remove ();
1162		1024
1163	/*	1025	/*
1164	* In this case, the object to be removed is in someones	1026	* In this case, the object to be removed is in someones
1165	* inventory.	1027	* inventory.
1166	*/	1028	*/
1167	if (op->env != NULL)	1029	if (env)
1168	{	1030	{
1169	if (op->nrof)	1031	if (nrof)
1170	sub_weight (op->env, op->weight * op->nrof);	1032	sub_weight (env, weight * nrof);
1171	else	1033	else
1172	sub_weight (op->env, op->weight + op->carrying);	1034	sub_weight (env, weight + carrying);
1173		1035
1174	/* NO_FIX_PLAYER is set when a great many changes are being	1036	/* NO_FIX_PLAYER is set when a great many changes are being
1175	* made to players inventory. If set, avoiding the call	1037	* made to players inventory. If set, avoiding the call
1176	* to save cpu time.	1038	* to save cpu time.
1177	*/	1039	*/
1178	if ((otmp = is_player_inv (op->env)) != NULL && otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))	1040	if ((otmp = in_player ()) && otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1179	fix_player (otmp);	1041	otmp->update_stats ();
1180		1042
1181	if (op->above != NULL)	1043	if (above)
1182	op->above->below = op->below;	1044	above->below = below;
1183	else	1045	else
1184	op->env->inv = op->below;	1046	env->inv = below;
1185		1047
1186	if (op->below != NULL)	1048	if (below)
1187	op->below->above = op->above;	1049	below->above = above;
1188		1050
1189	/* we set up values so that it could be inserted into	1051	/* we set up values so that it could be inserted into
1190	* the map, but we don't actually do that - it is up	1052	* the map, but we don't actually do that - it is up
1191	* to the caller to decide what we want to do.	1053	* to the caller to decide what we want to do.
1192	*/	1054	*/
1193	op->x = op->env->x, op->y = op->env->y;	1055	x = env->x, y = env->y;
1194	op->map = op->env->map;	1056	map = env->map;
1195	op->above = NULL, op->below = NULL;	1057	above = 0, below = 0;
1196	op->env = NULL;	1058	env = 0;
1197	return;
1198	}
1199
1200	/* If we get here, we are removing it from a map */
1201	if (op->map == NULL)
1202	return;
1203
1204	x = op->x;
1205	y = op->y;
1206	m = get_map_from_coord (op->map, &x, &y);
1207
1208	if (!m)
1209	{	1059	}
1210	LOG (llevError, "remove_ob called when object was on map but appears to not be within valid coordinates? %s (%d,%d)\n",	1060	else if (map)
1211	op->map->path, op->x, op->y);
1212	/* in old days, we used to set x and y to 0 and continue.
1213	* it seems if we get into this case, something is probablye
1214	* screwed up and should be fixed.
1215	*/
1216	abort ();
1217	}	1061	{
1218	if (op->map != m)	1062	if (type == PLAYER)
1219	{	1063	{
1220	LOG (llevDebug, "remove_ob: Object not really on map it claimed to be on? %s != %s, %d,%d != %d,%d\n",	1064	// leaving a spot always closes any open container on the ground
1221	op->map->path, m->path, op->x, op->y, x, y);	1065	if (container && !container->env)
1222	}	1066	// this causes spurious floorbox updates, but it ensures
		1067	// that the CLOSE event is being sent.
		1068	close_container ();
1223		1069
1224	/* Re did the following section of code - it looks like it had	1070	--map->players;
1225	* lots of logic for things we no longer care about	1071	map->touch ();
1226	*/	1072	}
1227		1073
		1074	map->dirty = true;
		1075	mapspace &ms = this->ms ();
		1076
1228	/* link the object above us */	1077	/* link the object above us */
1229	if (op->above)	1078	if (above)
1230	op->above->below = op->below;	1079	above->below = below;
1231	else	1080	else
1232	SET_MAP_TOP (m, x, y, op->below); /* we were top, set new top */	1081	ms.top = below; /* we were top, set new top */
1233		1082
1234	/* Relink the object below us, if there is one */	1083	/* Relink the object below us, if there is one */
1235	if (op->below)	1084	if (below)
1236	op->below->above = op->above;	1085	below->above = above;
1237	else	1086	else
1238	{	1087	{
1239	/* Nothing below, which means we need to relink map object for this space	1088	/* Nothing below, which means we need to relink map object for this space
1240	* use translated coordinates in case some oddness with map tiling is	1089	* use translated coordinates in case some oddness with map tiling is
1241	* evident	1090	* evident
1242	*/
1243	if (GET_MAP_OB (m, x, y) != op)
1244	{
1245	dump_object (op);
1246	LOG (llevError, "remove_ob: GET_MAP_OB does not return object to be removed even though it appears to be on the bottom?\n%s\n",
1247	errmsg);
1248	dump_object (GET_MAP_OB (m, x, y));
1249	LOG (llevError, "%s\n", errmsg);
1250	}
1251
1252	SET_MAP_OB (m, x, y, op->above); /* goes on above it. */
1253	}
1254
1255	op->above = NULL;
1256	op->below = NULL;
1257
1258	if (op->map->in_memory == MAP_SAVING)
1259	return;
1260
1261	tag = op->count;
1262	check_walk_off = !QUERY_FLAG (op, FLAG_NO_APPLY);
1263
1264	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)
1265	{
1266	/* No point updating the players look faces if he is the object
1267	* being removed.
1268	*/
1269
1270	if (tmp->type == PLAYER && tmp != op)
1271	{
1272	/* If a container that the player is currently using somehow gets
1273	* removed (most likely destroyed), update the player view
1274	* appropriately.
1275	*/	1091	*/
		1092	if (GET_MAP_OB (map, x, y) != this)
		1093	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 ());
		1094
		1095	ms.bot = above; /* goes on above it. */
		1096	}
		1097
		1098	above = 0;
		1099	below = 0;
		1100
		1101	if (map->in_memory == MAP_SAVING)
		1102	return;
		1103
		1104	int check_walk_off = !flag [FLAG_NO_APPLY];
		1105
		1106	if (object *pl = ms.player ())
		1107	{
1276	if (tmp->container == op)	1108	if (pl->container == this)
		1109	/* If a container that the player is currently using somehow gets
		1110	* removed (most likely destroyed), update the player view
		1111	* appropriately.
		1112	*/
		1113	pl->close_container ();
		1114
		1115	pl->contr->ns->floorbox_update ();
		1116	}
		1117
		1118	for (tmp = ms.bot; tmp; tmp = tmp->above)
		1119	{
		1120	/* No point updating the players look faces if he is the object
		1121	* being removed.
		1122	*/
		1123
		1124	/* See if object moving off should effect something */
		1125	if (check_walk_off
		1126	&& ((move_type & tmp->move_off)
		1127	&& (move_type & ~tmp->move_off & ~tmp->move_block) == 0))
1277	{	1128	{
1278	CLEAR_FLAG (op, FLAG_APPLIED);	1129	move_apply (tmp, this, 0);
1279	tmp->container = NULL;	1130
		1131	if (destroyed ())
		1132	LOG (llevError, "BUG: remove_ob(): name %s, destroyed leaving object\n", tmp->debug_desc ());
1280	}	1133	}
1281		1134
1282	tmp->contr->socket.update_look = 1;
1283	}
1284	/* See if player moving off should effect something */
1285	if (check_walk_off && ((op->move_type & tmp->move_off) && (op->move_type & ~tmp->move_off & ~tmp->move_block) == 0))
1286	{
1287	move_apply (tmp, op, NULL);
1288
1289	if (was_destroyed (op, tag))
1290	{
1291	LOG (llevError, "BUG: remove_ob(): name %s, archname %s destroyed " "leaving object\n", &tmp->name, &tmp->arch->name);
1292	}
1293	}
1294
1295	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */
1296
1297	if (tmp->above == tmp)
1298	tmp->above = NULL;
1299
1300	last = tmp;	1135	last = tmp;
1301	}	1136	}
1302		1137
1303	/* last == NULL of there are no objects on this space */	1138	/* last == NULL if there are no objects on this space */
1304	if (last == NULL)	1139	//TODO: this makes little sense, why only update the topmost object?
1305	{	1140	if (!last)
1306	/* set P_NEED_UPDATE, otherwise update_position will complain. In theory,	1141	map->at (x, y).flags_ = 0;
1307	* we could preserve the flags (GET_MAP_FLAGS), but update_position figures
1308	* those out anyways, and if there are any flags set right now, they won't
1309	* be correct anyways.
1310	*/
1311	SET_MAP_FLAGS (op->map, op->x, op->y, P_NEED_UPDATE);
1312	update_position (op->map, op->x, op->y);
1313	}
1314	else	1142	else
1315	update_object (last, UP_OBJ_REMOVE);	1143	update_object (last, UP_OBJ_REMOVE);
1316		1144
1317	if (QUERY_FLAG (op, FLAG_BLOCKSVIEW) || (op->glow_radius != 0))	1145	if (flag [FLAG_BLOCKSVIEW] || glow_radius)
1318	update_all_los (op->map, op->x, op->y);	1146	update_all_los (map, x, y);
		1147	}
1319	}	1148	}
1320		1149
1321	/*	1150	/*
1322	* merge_ob(op,top):	1151	* merge_ob(op,top):
1323	*	1152	*
1324	* This function goes through all objects below and including top, and	1153	* This function goes through all objects below and including top, and
1325	* merges op to the first matching object.	1154	* merges op to the first matching object.
1326	* If top is NULL, it is calculated.	1155	* If top is NULL, it is calculated.
1327	* Returns pointer to object if it succeded in the merge, otherwise NULL	1156	* Returns pointer to object if it succeded in the merge, otherwise NULL
1328	*/	1157	*/
1329
1330	object *	1158	object *
1331	merge_ob (object *op, object *top)	1159	merge_ob (object *op, object *top)
1332	{	1160	{
1333	if (!op->nrof)	1161	if (!op->nrof)
1334	return 0;	1162	return 0;
1335	if (top == NULL)	1163
		1164	if (!top)
1336	for (top = op; top != NULL && top->above != NULL; top = top->above);	1165	for (top = op; top && top->above; top = top->above)
		1166	;
		1167
1337	for (; top != NULL; top = top->below)	1168	for (; top; top = top->below)
1338	{	1169	{
1339	if (top == op)	1170	if (top == op)
1340	continue;	1171	continue;
1341	if (CAN_MERGE (op, top))	1172
		1173	if (object::can_merge (op, top))
1342	{	1174	{
1343	top->nrof += op->nrof;	1175	top->nrof += op->nrof;
1344		1176
1345	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/	1177	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/
1346	op->weight = 0; /* Don't want any adjustements now */	1178	op->weight = 0; /* Don't want any adjustements now */
1347	remove_ob (op);	1179	op->destroy ();
1348	free_object (op);
1349	return top;	1180	return top;
1350	}	1181	}
1351	}	1182	}
		1183
1352	return NULL;	1184	return 0;
1353	}	1185	}
1354		1186
		1187	void
		1188	object::expand_tail ()
		1189	{
		1190	if (more)
		1191	return;
		1192
		1193	object *prev = this;
		1194
		1195	for (archetype *at = (archetype *)arch->more; at; at = (archetype *)at->more)
		1196	{
		1197	object *op = arch_to_object (at);
		1198
		1199	op->name = name;
		1200	op->name_pl = name_pl;
		1201	op->title = title;
		1202
		1203	op->head = this;
		1204	prev->more = op;
		1205
		1206	prev = op;
		1207	}
		1208	}
		1209
1355	/*	1210	/*
1356	* same as insert_ob_in_map except it handle separate coordinates and do a clean	1211	* same as insert_ob_in_map except it handles separate coordinates and does a clean
1357	* job preparing multi-part monsters	1212	* job preparing multi-part monsters.
1358	*/	1213	*/
1359	object *	1214	object *
1360	insert_ob_in_map_at (object *op, mapstruct *m, object *originator, int flag, int x, int y)	1215	insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)
1361	{	1216	{
1362	object *
1363	tmp;
1364
1365	if (op->head)
1366	op = op->head;
1367	for (tmp = op; tmp; tmp = tmp->more)	1217	for (object *tmp = op->head_ (); tmp; tmp = tmp->more)
1368	{	1218	{
1369	tmp->x = x + tmp->arch->clone.x;	1219	tmp->x = x + tmp->arch->x;
1370	tmp->y = y + tmp->arch->clone.y;	1220	tmp->y = y + tmp->arch->y;
1371	}	1221	}
		1222
1372	return insert_ob_in_map (op, m, originator, flag);	1223	return insert_ob_in_map (op, m, originator, flag);
1373	}	1224	}
1374		1225
1375	/*	1226	/*
1376	* insert_ob_in_map (op, map, originator, flag):	1227	* insert_ob_in_map (op, map, originator, flag):
…		…
1390	* Return value:	1241	* Return value:
1391	* new object if 'op' was merged with other object	1242	* new object if 'op' was merged with other object
1392	* NULL if 'op' was destroyed	1243	* NULL if 'op' was destroyed
1393	* just 'op' otherwise	1244	* just 'op' otherwise
1394	*/	1245	*/
1395
1396	object *	1246	object *
1397	insert_ob_in_map (object *op, mapstruct *m, object *originator, int flag)	1247	insert_ob_in_map (object *op, maptile *m, object *originator, int flag)
1398	{	1248	{
		1249	assert (!op->flag [FLAG_FREED]);
		1250
1399	object *tmp, *top, *floor = NULL;	1251	object *top, *floor = NULL;
1400	sint16 x, y;
1401		1252
1402	if (QUERY_FLAG (op, FLAG_FREED))	1253	op->remove ();
1403	{
1404	LOG (llevError, "Trying to insert freed object!\n");
1405	return NULL;
1406	}
1407
1408	if (m == NULL)
1409	{
1410	dump_object (op);
1411	LOG (llevError, "Trying to insert in null-map!\n%s\n", errmsg);
1412	return op;
1413	}
1414
1415	if (out_of_map (m, op->x, op->y))
1416	{
1417	dump_object (op);
1418	LOG (llevError, "Trying to insert object outside the map.\n%s\n", errmsg);
1419	#ifdef MANY_CORES
1420	/* Better to catch this here, as otherwise the next use of this object
1421	* is likely to cause a crash. Better to find out where it is getting
1422	* improperly inserted.
1423	*/
1424	abort ();
1425	#endif
1426	return op;
1427	}
1428
1429	if (!QUERY_FLAG (op, FLAG_REMOVED))
1430	{
1431	dump_object (op);
1432	LOG (llevError, "Trying to insert (map) inserted object.\n%s\n", errmsg);
1433	return op;
1434	}
1435
1436	if (op->more != NULL)
1437	{
1438	/* The part may be on a different map. */
1439
1440	object *more = op->more;
1441
1442	/* We really need the caller to normalize coordinates - if
1443	* we set the map, that doesn't work if the location is within
1444	* a map and this is straddling an edge. So only if coordinate
1445	* is clear wrong do we normalize it.
1446	*/
1447	if (OUT_OF_REAL_MAP (more->map, more->x, more->y))
1448	more->map = get_map_from_coord (m, &more->x, &more->y);
1449	else if (!more->map)
1450	{
1451	/* For backwards compatibility - when not dealing with tiled maps,
1452	* more->map should always point to the parent.
1453	*/
1454	more->map = m;
1455	}
1456
1457	if (insert_ob_in_map (more, more->map, originator, flag) == NULL)
1458	{
1459	if (!op->head)
1460	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");
1461
1462	return NULL;
1463	}
1464	}
1465
1466	CLEAR_FLAG (op, FLAG_REMOVED);
1467		1254
1468	/* Ideally, the caller figures this out. However, it complicates a lot	1255	/* Ideally, the caller figures this out. However, it complicates a lot
1469	* of areas of callers (eg, anything that uses find_free_spot would now	1256	* of areas of callers (eg, anything that uses find_free_spot would now
1470	* need extra work	1257	* need extra work
1471	*/	1258	*/
1472	op->map = get_map_from_coord (m, &op->x, &op->y);	1259	if (!xy_normalise (m, op->x, op->y))
1473	x = op->x;	1260	{
1474	y = op->y;	1261	op->destroy ();
		1262	return 0;
		1263	}
		1264
		1265	if (object *more = op->more)
		1266	if (!insert_ob_in_map (more, m, originator, flag))
		1267	return 0;
		1268
		1269	CLEAR_FLAG (op, FLAG_REMOVED);
		1270
		1271	op->map = m;
		1272	mapspace &ms = op->ms ();
1475		1273
1476	/* this has to be done after we translate the coordinates.	1274	/* this has to be done after we translate the coordinates.
1477	*/	1275	*/
1478	if (op->nrof && !(flag & INS_NO_MERGE))	1276	if (op->nrof && !(flag & INS_NO_MERGE))
1479	for (tmp = GET_MAP_OB (op->map, x, y); tmp != NULL; tmp = tmp->above)	1277	for (object *tmp = ms.bot; tmp; tmp = tmp->above)
1480	if (CAN_MERGE (op, tmp))	1278	if (object::can_merge (op, tmp))
1481	{	1279	{
1482	op->nrof += tmp->nrof;	1280	op->nrof += tmp->nrof;
1483	remove_ob (tmp);	1281	tmp->destroy ();
1484	free_object (tmp);
1485	}	1282	}
1486		1283
1487	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */	1284	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */
1488	CLEAR_FLAG (op, FLAG_INV_LOCKED);	1285	CLEAR_FLAG (op, FLAG_INV_LOCKED);
1489		1286
…		…
1502	op->below = originator->below;	1299	op->below = originator->below;
1503		1300
1504	if (op->below)	1301	if (op->below)
1505	op->below->above = op;	1302	op->below->above = op;
1506	else	1303	else
1507	SET_MAP_OB (op->map, op->x, op->y, op);	1304	ms.bot = op;
1508		1305
1509	/* since *below* originator, no need to update top */	1306	/* since *below* originator, no need to update top */
1510	originator->below = op;	1307	originator->below = op;
1511	}	1308	}
1512	else	1309	else
1513	{	1310	{
		1311	top = ms.bot;
		1312
1514	/* If there are other objects, then */	1313	/* If there are other objects, then */
1515	if ((!(flag & INS_MAP_LOAD)) && ((top = GET_MAP_OB (op->map, op->x, op->y)) != NULL))	1314	if (top)
1516	{	1315	{
1517	object *last = NULL;	1316	object *last = 0;
1518		1317
1519	/*	1318	/*
1520	* If there are multiple objects on this space, we do some trickier handling.	1319	* If there are multiple objects on this space, we do some trickier handling.
1521	* We've already dealt with merging if appropriate.	1320	* We've already dealt with merging if appropriate.
1522	* Generally, we want to put the new object on top. But if	1321	* Generally, we want to put the new object on top. But if
…		…
1526	* once we get to them. This reduces the need to traverse over all of	1325	* once we get to them. This reduces the need to traverse over all of
1527	* them when adding another one - this saves quite a bit of cpu time	1326	* them when adding another one - this saves quite a bit of cpu time
1528	* when lots of spells are cast in one area. Currently, it is presumed	1327	* when lots of spells are cast in one area. Currently, it is presumed
1529	* that flying non pickable objects are spell objects.	1328	* that flying non pickable objects are spell objects.
1530	*/	1329	*/
1531		1330	for (top = ms.bot; top; top = top->above)
1532	while (top != NULL)
1533	{	1331	{
1534	if (QUERY_FLAG (top, FLAG_IS_FLOOR) || QUERY_FLAG (top, FLAG_OVERLAY_FLOOR))	1332	if (QUERY_FLAG (top, FLAG_IS_FLOOR) || QUERY_FLAG (top, FLAG_OVERLAY_FLOOR))
1535	floor = top;	1333	floor = top;
1536		1334
1537	if (QUERY_FLAG (top, FLAG_NO_PICK) && (top->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (top, FLAG_IS_FLOOR))	1335	if (QUERY_FLAG (top, FLAG_NO_PICK) && (top->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (top, FLAG_IS_FLOOR))
…		…
1540	top = top->below;	1338	top = top->below;
1541	break;	1339	break;
1542	}	1340	}
1543		1341
1544	last = top;	1342	last = top;
1545	top = top->above;
1546	}	1343	}
1547		1344
1548	/* Don't want top to be NULL, so set it to the last valid object */	1345	/* Don't want top to be NULL, so set it to the last valid object */
1549	top = last;	1346	top = last;
1550		1347
…		…
1552	* looks like instead of lots of conditions here.	1349	* looks like instead of lots of conditions here.
1553	* makes things faster, and effectively the same result.	1350	* makes things faster, and effectively the same result.
1554	*/	1351	*/
1555		1352
1556	/* Have object 'fall below' other objects that block view.	1353	/* Have object 'fall below' other objects that block view.
1557	* Unless those objects are exits, type 66	1354	* Unless those objects are exits.
1558	* If INS_ON_TOP is used, don't do this processing	1355	* If INS_ON_TOP is used, don't do this processing
1559	* Need to find the object that in fact blocks view, otherwise	1356	* Need to find the object that in fact blocks view, otherwise
1560	* stacking is a bit odd.	1357	* stacking is a bit odd.
1561	*/	1358	*/
1562	if (!(flag & INS_ON_TOP) &&	1359	if (!(flag & INS_ON_TOP)
1563	(get_map_flags (op->map, NULL, op->x, op->y, NULL, NULL) & P_BLOCKSVIEW) && (op->face && !op->face->visibility))	1360	&& ms.flags () & P_BLOCKSVIEW
		1361	&& (op->face && !faces [op->face].visibility))
1564	{	1362	{
1565	for (last = top; last != floor; last = last->below)	1363	for (last = top; last != floor; last = last->below)
1566	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))	1364	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))
1567	break;	1365	break;
		1366
1568	/* Check to see if we found the object that blocks view,	1367	/* Check to see if we found the object that blocks view,
1569	* and make sure we have a below pointer for it so that	1368	* and make sure we have a below pointer for it so that
1570	* we can get inserted below this one, which requires we	1369	* we can get inserted below this one, which requires we
1571	* set top to the object below us.	1370	* set top to the object below us.
1572	*/	1371	*/
1573	if (last && last->below && last != floor)	1372	if (last && last->below && last != floor)
1574	top = last->below;	1373	top = last->below;
1575	}	1374	}
1576	} /* If objects on this space */	1375	} /* If objects on this space */
1577		1376
1578	if (flag & INS_MAP_LOAD)
1579	top = GET_MAP_TOP (op->map, op->x, op->y);
1580
1581	if (flag & INS_ABOVE_FLOOR_ONLY)	1377	if (flag & INS_ABOVE_FLOOR_ONLY)
1582	top = floor;	1378	top = floor;
1583		1379
1584	/* Top is the object that our object (op) is going to get inserted above.	1380	/* Top is the object that our object (op) is going to get inserted above.
1585	*/	1381	*/
1586		1382
1587	/* First object on this space */	1383	/* First object on this space */
1588	if (!top)	1384	if (!top)
1589	{	1385	{
1590	op->above = GET_MAP_OB (op->map, op->x, op->y);	1386	op->above = ms.bot;
1591		1387
1592	if (op->above)	1388	if (op->above)
1593	op->above->below = op;	1389	op->above->below = op;
1594		1390
1595	op->below = NULL;	1391	op->below = 0;
1596	SET_MAP_OB (op->map, op->x, op->y, op);	1392	ms.bot = op;
1597	}	1393	}
1598	else	1394	else
1599	{ /* get inserted into the stack above top */	1395	{ /* get inserted into the stack above top */
1600	op->above = top->above;	1396	op->above = top->above;
1601		1397
…		…
1604		1400
1605	op->below = top;	1401	op->below = top;
1606	top->above = op;	1402	top->above = op;
1607	}	1403	}
1608		1404
1609	if (op->above == NULL)	1405	if (!op->above)
1610	SET_MAP_TOP (op->map, op->x, op->y, op);	1406	ms.top = op;
1611	} /* else not INS_BELOW_ORIGINATOR */	1407	} /* else not INS_BELOW_ORIGINATOR */
1612		1408
1613	if (op->type == PLAYER)	1409	if (op->type == PLAYER)
		1410	{
1614	op->contr->do_los = 1;	1411	op->contr->do_los = 1;
		1412	++op->map->players;
		1413	op->map->touch ();
		1414	}
1615		1415
1616	/* If we have a floor, we know the player, if any, will be above	1416	op->map->dirty = true;
1617	* it, so save a few ticks and start from there.	1417
1618	*/	1418	if (object *pl = ms.player ())
1619	if (!(flag & INS_MAP_LOAD))	1419	pl->contr->ns->floorbox_update ();
1620	for (tmp = floor ? floor : GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)
1621	if (tmp->type == PLAYER)
1622	tmp->contr->socket.update_look = 1;
1623		1420
1624	/* If this object glows, it may affect lighting conditions that are	1421	/* If this object glows, it may affect lighting conditions that are
1625	* visible to others on this map. But update_all_los is really	1422	* visible to others on this map. But update_all_los is really
1626	* an inefficient way to do this, as it means los for all players	1423	* an inefficient way to do this, as it means los for all players
1627	* on the map will get recalculated. The players could very well	1424	* on the map will get recalculated. The players could very well
1628	* be far away from this change and not affected in any way -	1425	* be far away from this change and not affected in any way -
1629	* this should get redone to only look for players within range,	1426	* this should get redone to only look for players within range,
1630	* or just updating the P_NEED_UPDATE for spaces within this area	1427	* or just updating the P_UPTODATE for spaces within this area
1631	* of effect may be sufficient.	1428	* of effect may be sufficient.
1632	*/	1429	*/
1633	if (MAP_DARKNESS (op->map) && (op->glow_radius != 0))	1430	if (op->map->darkness && (op->glow_radius != 0))
1634	update_all_los (op->map, op->x, op->y);	1431	update_all_los (op->map, op->x, op->y);
1635		1432
1636	/* updates flags (blocked, alive, no magic, etc) for this map space */	1433	/* updates flags (blocked, alive, no magic, etc) for this map space */
1637	update_object (op, UP_OBJ_INSERT);	1434	update_object (op, UP_OBJ_INSERT);
1638		1435
		1436	INVOKE_OBJECT (INSERT, op);
		1437
1639	/* Don't know if moving this to the end will break anything. However,	1438	/* Don't know if moving this to the end will break anything. However,
1640	* we want to have update_look set above before calling this.	1439	* we want to have floorbox_update called before calling this.
1641	*	1440	*
1642	* check_move_on() must be after this because code called from	1441	* check_move_on() must be after this because code called from
1643	* check_move_on() depends on correct map flags (so functions like	1442	* check_move_on() depends on correct map flags (so functions like
1644	* blocked() and wall() work properly), and these flags are updated by	1443	* blocked() and wall() work properly), and these flags are updated by
1645	* update_object().	1444	* update_object().
1646	*/	1445	*/
1647		1446
1648	/* if this is not the head or flag has been passed, don't check walk on status */	1447	/* if this is not the head or flag has been passed, don't check walk on status */
1649	if (!(flag & INS_NO_WALK_ON) && !op->head)	1448	if (!(flag & INS_NO_WALK_ON) && op->head_ () == op)
1650	{	1449	{
1651	if (check_move_on (op, originator))	1450	if (check_move_on (op, originator))
1652	return NULL;	1451	return 0;
1653		1452
1654	/* If we are a multi part object, lets work our way through the check	1453	/* If we are a multi part object, lets work our way through the check
1655	* walk on's.	1454	* walk on's.
1656	*/	1455	*/
1657	for (tmp = op->more; tmp != NULL; tmp = tmp->more)	1456	for (object *tmp = op->more; tmp; tmp = tmp->more)
1658	if (check_move_on (tmp, originator))	1457	if (check_move_on (tmp, originator))
1659	return NULL;	1458	return 0;
1660	}	1459	}
1661		1460
1662	return op;	1461	return op;
1663	}	1462	}
1664		1463
1665	/* this function inserts an object in the map, but if it	1464	/* this function inserts an object in the map, but if it
1666	* finds an object of its own type, it'll remove that one first.	1465	* finds an object of its own type, it'll remove that one first.
1667	* op is the object to insert it under: supplies x and the map.	1466	* op is the object to insert it under: supplies x and the map.
1668	*/	1467	*/
1669	void	1468	void
1670	replace_insert_ob_in_map (const char *arch_string, object *op)	1469	replace_insert_ob_in_map (const char *arch_string, object *op)
1671	{	1470	{
1672	object *tmp;
1673	object *tmp1;	1471	object *tmp, *tmp1;
1674		1472
1675	/* first search for itself and remove any old instances */	1473	/* first search for itself and remove any old instances */
1676		1474
1677	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)	1475	for (tmp = op->ms ().bot; tmp; tmp = tmp->above)
1678	{
1679	if (!strcmp (tmp->arch->name, arch_string)) /* same archetype */	1476	if (!strcmp (tmp->arch->archname, arch_string)) /* same archetype */
1680	{	1477	tmp->destroy ();
1681	remove_ob (tmp);
1682	free_object (tmp);
1683	}
1684	}
1685		1478
1686	tmp1 = arch_to_object (find_archetype (arch_string));	1479	tmp1 = arch_to_object (archetype::find (arch_string));
1687		1480
1688	tmp1->x = op->x;	1481	tmp1->x = op->x;
1689	tmp1->y = op->y;	1482	tmp1->y = op->y;
1690	insert_ob_in_map (tmp1, op->map, op, 0);	1483	insert_ob_in_map (tmp1, op->map, op, 0);
		1484	}
		1485
		1486	object *
		1487	object::insert_at (object *where, object *originator, int flags)
		1488	{
		1489	return where->map->insert (this, where->x, where->y, originator, flags);
1691	}	1490	}
1692		1491
1693	/*	1492	/*
1694	* get_split_ob(ob,nr) splits up ob into two parts. The part which	1493	* get_split_ob(ob,nr) splits up ob into two parts. The part which
1695	* is returned contains nr objects, and the remaining parts contains	1494	* is returned contains nr objects, and the remaining parts contains
1696	* the rest (or is removed and freed if that number is 0).	1495	* the rest (or is removed and freed if that number is 0).
1697	* On failure, NULL is returned, and the reason put into the	1496	* On failure, NULL is returned, and the reason put into the
1698	* global static errmsg array.	1497	* global static errmsg array.
1699	*/	1498	*/
1700
1701	object *	1499	object *
1702	get_split_ob (object *orig_ob, uint32 nr)	1500	get_split_ob (object *orig_ob, uint32 nr)
1703	{	1501	{
1704	object *	1502	object *newob;
1705	newob;
1706	int
1707	is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);	1503	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);
1708		1504
1709	if (orig_ob->nrof < nr)	1505	if (orig_ob->nrof < nr)
1710	{	1506	{
1711	sprintf (errmsg, "There are only %d %ss.", orig_ob->nrof ? orig_ob->nrof : 1, &orig_ob->name);	1507	sprintf (errmsg, "There are only %d %ss.", orig_ob->nrof ? orig_ob->nrof : 1, &orig_ob->name);
1712	return NULL;	1508	return NULL;
1713	}	1509	}
		1510
1714	newob = object_create_clone (orig_ob);	1511	newob = object_create_clone (orig_ob);
		1512
1715	if ((orig_ob->nrof -= nr) < 1)	1513	if ((orig_ob->nrof -= nr) < 1)
1716	{	1514	orig_ob->destroy (1);
1717	if (!is_removed)
1718	remove_ob (orig_ob);
1719	free_object2 (orig_ob, 1);
1720	}
1721	else if (!is_removed)	1515	else if (!is_removed)
1722	{	1516	{
1723	if (orig_ob->env != NULL)	1517	if (orig_ob->env != NULL)
1724	sub_weight (orig_ob->env, orig_ob->weight * nr);	1518	sub_weight (orig_ob->env, orig_ob->weight * nr);
1725	if (orig_ob->env == NULL && orig_ob->map->in_memory != MAP_IN_MEMORY)	1519	if (orig_ob->env == NULL && orig_ob->map->in_memory != MAP_IN_MEMORY)
…		…
1727	strcpy (errmsg, "Tried to split object whose map is not in memory.");	1521	strcpy (errmsg, "Tried to split object whose map is not in memory.");
1728	LOG (llevDebug, "Error, Tried to split object whose map is not in memory.\n");	1522	LOG (llevDebug, "Error, Tried to split object whose map is not in memory.\n");
1729	return NULL;	1523	return NULL;
1730	}	1524	}
1731	}	1525	}
		1526
1732	newob->nrof = nr;	1527	newob->nrof = nr;
1733		1528
1734	return newob;	1529	return newob;
1735	}	1530	}
1736		1531
…		…
1739	* the amount of an object. If the amount reaches 0, the object	1534	* the amount of an object. If the amount reaches 0, the object
1740	* is subsequently removed and freed.	1535	* is subsequently removed and freed.
1741	*	1536	*
1742	* Return value: 'op' if something is left, NULL if the amount reached 0	1537	* Return value: 'op' if something is left, NULL if the amount reached 0
1743	*/	1538	*/
1744
1745	object *	1539	object *
1746	decrease_ob_nr (object *op, uint32 i)	1540	decrease_ob_nr (object *op, uint32 i)
1747	{	1541	{
1748	object *	1542	object *tmp;
1749	tmp;
1750	player *
1751	pl;
1752		1543
1753	if (i == 0) /* objects with op->nrof require this check */	1544	if (i == 0) /* objects with op->nrof require this check */
1754	return op;	1545	return op;
1755		1546
1756	if (i > op->nrof)	1547	if (i > op->nrof)
1757	i = op->nrof;	1548	i = op->nrof;
1758		1549
1759	if (QUERY_FLAG (op, FLAG_REMOVED))	1550	if (QUERY_FLAG (op, FLAG_REMOVED))
1760	{
1761	op->nrof -= i;	1551	op->nrof -= i;
1762	}
1763	else if (op->env != NULL)	1552	else if (op->env)
1764	{	1553	{
1765	/* is this object in the players inventory, or sub container	1554	/* is this object in the players inventory, or sub container
1766	* therein?	1555	* therein?
1767	*/	1556	*/
1768	tmp = is_player_inv (op->env);	1557	tmp = op->in_player ();
1769	/* nope. Is this a container the player has opened?	1558	/* nope. Is this a container the player has opened?
1770	* If so, set tmp to that player.	1559	* If so, set tmp to that player.
1771	* IMO, searching through all the players will mostly	1560	* IMO, searching through all the players will mostly
1772	* likely be quicker than following op->env to the map,	1561	* likely be quicker than following op->env to the map,
1773	* and then searching the map for a player.	1562	* and then searching the map for a player.
1774	*/	1563	*/
1775	if (!tmp)	1564	if (!tmp)
1776	{	1565	for_all_players (pl)
1777	for (pl = first_player; pl; pl = pl->next)
1778	if (pl->ob->container == op->env)	1566	if (pl->ob->container == op->env)
		1567	{
		1568	tmp = pl->ob;
1779	break;	1569	break;
1780	if (pl)
1781	tmp = pl->ob;
1782	else
1783	tmp = NULL;
1784	}	1570	}
1785		1571
1786	if (i < op->nrof)	1572	if (i < op->nrof)
1787	{	1573	{
1788	sub_weight (op->env, op->weight * i);	1574	sub_weight (op->env, op->weight * i);
1789	op->nrof -= i;	1575	op->nrof -= i;
1790	if (tmp)	1576	if (tmp)
1791	{
1792	esrv_send_item (tmp, op);	1577	esrv_send_item (tmp, op);
1793	}
1794	}	1578	}
1795	else	1579	else
1796	{	1580	{
1797	remove_ob (op);	1581	op->remove ();
1798	op->nrof = 0;	1582	op->nrof = 0;
1799	if (tmp)	1583	if (tmp)
1800	{
1801	esrv_del_item (tmp->contr, op->count);	1584	esrv_del_item (tmp->contr, op->count);
1802	}
1803	}	1585	}
1804	}	1586	}
1805	else	1587	else
1806	{	1588	{
1807	object *
1808	above = op->above;	1589	object *above = op->above;
1809		1590
1810	if (i < op->nrof)	1591	if (i < op->nrof)
1811	{
1812	op->nrof -= i;	1592	op->nrof -= i;
1813	}
1814	else	1593	else
1815	{	1594	{
1816	remove_ob (op);	1595	op->remove ();
1817	op->nrof = 0;	1596	op->nrof = 0;
1818	}	1597	}
		1598
1819	/* Since we just removed op, op->above is null */	1599	/* Since we just removed op, op->above is null */
1820	for (tmp = above; tmp != NULL; tmp = tmp->above)	1600	for (tmp = above; tmp; tmp = tmp->above)
1821	if (tmp->type == PLAYER)	1601	if (tmp->type == PLAYER)
1822	{	1602	{
1823	if (op->nrof)	1603	if (op->nrof)
1824	esrv_send_item (tmp, op);	1604	esrv_send_item (tmp, op);
1825	else	1605	else
1826	esrv_del_item (tmp->contr, op->count);	1606	esrv_del_item (tmp->contr, op->count);
1827	}	1607	}
1828	}	1608	}
1829		1609
1830	if (op->nrof)	1610	if (op->nrof)
1831	{
1832	return op;	1611	return op;
1833	}
1834	else	1612	else
1835	{	1613	{
1836	free_object (op);	1614	op->destroy ();
1837	return NULL;	1615	return 0;
1838	}	1616	}
1839	}	1617	}
1840		1618
1841	/*	1619	/*
1842	* add_weight(object, weight) adds the specified weight to an object,	1620	* add_weight(object, weight) adds the specified weight to an object,
1843	* and also updates how much the environment(s) is/are carrying.	1621	* and also updates how much the environment(s) is/are carrying.
1844	*/	1622	*/
1845
1846	void	1623	void
1847	add_weight (object *op, signed long weight)	1624	add_weight (object *op, signed long weight)
1848	{	1625	{
1849	while (op != NULL)	1626	while (op != NULL)
1850	{	1627	{
1851	if (op->type == CONTAINER)	1628	if (op->type == CONTAINER)
1852	{
1853	weight = (signed long) (weight * (100 - op->stats.Str) / 100);	1629	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1854	}	1630
1855	op->carrying += weight;	1631	op->carrying += weight;
1856	op = op->env;	1632	op = op->env;
1857	}	1633	}
1858	}	1634	}
1859		1635
		1636	object *
		1637	insert_ob_in_ob (object *op, object *where)
		1638	{
		1639	if (!where)
		1640	{
		1641	char *dump = dump_object (op);
		1642	LOG (llevError, "Trying to put object in NULL.\n%s\n", dump);
		1643	free (dump);
		1644	return op;
		1645	}
		1646
		1647	if (where->head_ () != where)
		1648	{
		1649	LOG (llevError | logBacktrace, "Warning: Tried to insert object into wrong part of multipart object.\n");
		1650	where = where->head;
		1651	}
		1652
		1653	return where->insert (op);
		1654	}
		1655
1860	/*	1656	/*
1861	* insert_ob_in_ob(op,environment):	1657	* env->insert (op)
1862	* This function inserts the object op in the linked list	1658	* This function inserts the object op in the linked list
1863	* inside the object environment.	1659	* inside the object environment.
1864	*	1660	*
1865	* Eneq(@csd.uu.se): Altered insert_ob_in_ob to make things picked up enter
1866	* the inventory at the last position or next to other objects of the same
1867	* type.
1868	* Frank: Now sorted by type, archetype and magic!
1869	*
1870	* The function returns now pointer to inserted item, and return value can	1661	* The function returns now pointer to inserted item, and return value can
1871	* be != op, if items are merged. -Tero	1662	* be != op, if items are merged. -Tero
1872	*/	1663	*/
1873
1874	object *	1664	object *
1875	insert_ob_in_ob (object *op, object *where)	1665	object::insert (object *op)
1876	{	1666	{
1877	object *
1878	tmp, *
1879	otmp;
1880
1881	if (!QUERY_FLAG (op, FLAG_REMOVED))	1667	if (!QUERY_FLAG (op, FLAG_REMOVED))
1882	{	1668	op->remove ();
1883	dump_object (op);	1669
1884	LOG (llevError, "Trying to insert (ob) inserted object.\n%s\n", errmsg);
1885	return op;
1886	}
1887	if (where == NULL)
1888	{
1889	dump_object (op);
1890	LOG (llevError, "Trying to put object in NULL.\n%s\n", errmsg);
1891	return op;
1892	}
1893	if (where->head)
1894	{
1895	LOG (llevDebug, "Warning: Tried to insert object wrong part of multipart object.\n");
1896	where = where->head;
1897	}
1898	if (op->more)	1670	if (op->more)
1899	{	1671	{
1900	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);	1672	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);
1901	return op;	1673	return op;
1902	}	1674	}
		1675
1903	CLEAR_FLAG (op, FLAG_OBJ_ORIGINAL);	1676	CLEAR_FLAG (op, FLAG_OBJ_ORIGINAL);
1904	CLEAR_FLAG (op, FLAG_REMOVED);	1677	CLEAR_FLAG (op, FLAG_REMOVED);
		1678
1905	if (op->nrof)	1679	if (op->nrof)
1906	{	1680	{
1907	for (tmp = where->inv; tmp != NULL; tmp = tmp->below)	1681	for (object *tmp = inv; tmp; tmp = tmp->below)
1908	if (CAN_MERGE (tmp, op))	1682	if (object::can_merge (tmp, op))
1909	{	1683	{
1910	/* return the original object and remove inserted object	1684	/* return the original object and remove inserted object
1911	(client needs the original object) */	1685	(client needs the original object) */
1912	tmp->nrof += op->nrof;	1686	tmp->nrof += op->nrof;
1913	/* Weight handling gets pretty funky. Since we are adding to	1687	/* Weight handling gets pretty funky. Since we are adding to
1914	* tmp->nrof, we need to increase the weight.	1688	* tmp->nrof, we need to increase the weight.
1915	*/	1689	*/
1916	add_weight (where, op->weight * op->nrof);	1690	add_weight (this, op->weight * op->nrof);
1917	SET_FLAG (op, FLAG_REMOVED);	1691	SET_FLAG (op, FLAG_REMOVED);
1918	free_object (op); /* free the inserted object */	1692	op->destroy (); /* free the inserted object */
1919	op = tmp;	1693	op = tmp;
1920	remove_ob (op); /* and fix old object's links */	1694	op->remove (); /* and fix old object's links */
1921	CLEAR_FLAG (op, FLAG_REMOVED);	1695	CLEAR_FLAG (op, FLAG_REMOVED);
1922	break;	1696	break;
1923	}	1697	}
1924		1698
1925	/* I assume combined objects have no inventory	1699	/* I assume combined objects have no inventory
1926	* We add the weight - this object could have just been removed	1700	* We add the weight - this object could have just been removed
1927	* (if it was possible to merge). calling remove_ob will subtract	1701	* (if it was possible to merge). calling remove_ob will subtract
1928	* the weight, so we need to add it in again, since we actually do	1702	* the weight, so we need to add it in again, since we actually do
1929	* the linking below	1703	* the linking below
1930	*/	1704	*/
1931	add_weight (where, op->weight * op->nrof);	1705	add_weight (this, op->weight * op->nrof);
1932	}	1706	}
1933	else	1707	else
1934	add_weight (where, (op->weight + op->carrying));	1708	add_weight (this, (op->weight + op->carrying));
1935		1709
1936	otmp = is_player_inv (where);	1710	if (object *otmp = this->in_player ())
1937	if (otmp && otmp->contr != NULL)
1938	{
1939	if (!QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))	1711	if (otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1940	fix_player (otmp);	1712	otmp->update_stats ();
1941	}
1942		1713
		1714	op->owner = 0; // its his/hers now. period.
1943	op->map = NULL;	1715	op->map = 0;
1944	op->env = where;	1716	op->env = this;
1945	op->above = NULL;	1717	op->above = 0;
1946	op->below = NULL;	1718	op->below = 0;
1947	op->x = 0, op->y = 0;	1719	op->x = op->y = 0;
1948		1720
1949	/* reset the light list and los of the players on the map */	1721	/* reset the light list and los of the players on the map */
1950	if ((op->glow_radius != 0) && where->map)	1722	if (op->glow_radius && map)
1951	{	1723	{
1952	#ifdef DEBUG_LIGHTS	1724	#ifdef DEBUG_LIGHTS
1953	LOG (llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n", op->name);	1725	LOG (llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n", op->name);
1954	#endif /* DEBUG_LIGHTS */	1726	#endif /* DEBUG_LIGHTS */
1955	if (MAP_DARKNESS (where->map))	1727	if (map->darkness)
1956	update_all_los (where->map, where->x, where->y);	1728	update_all_los (map, x, y);
1957	}	1729	}
1958		1730
1959	/* Client has no idea of ordering so lets not bother ordering it here.	1731	/* Client has no idea of ordering so lets not bother ordering it here.
1960	* It sure simplifies this function...	1732	* It sure simplifies this function...
1961	*/	1733	*/
1962	if (where->inv == NULL)	1734	if (!inv)
1963	where->inv = op;	1735	inv = op;
1964	else	1736	else
1965	{	1737	{
1966	op->below = where->inv;	1738	op->below = inv;
1967	op->below->above = op;	1739	op->below->above = op;
1968	where->inv = op;	1740	inv = op;
1969	}	1741	}
		1742
		1743	INVOKE_OBJECT (INSERT, this);
		1744
1970	return op;	1745	return op;
1971	}	1746	}
1972		1747
1973	/*	1748	/*
1974	* Checks if any objects has a move_type that matches objects	1749	* Checks if any objects has a move_type that matches objects
…		…
1988	*	1763	*
1989	* MSW 2001-07-08: Check all objects on space, not just those below	1764	* MSW 2001-07-08: Check all objects on space, not just those below
1990	* object being inserted. insert_ob_in_map may not put new objects	1765	* object being inserted. insert_ob_in_map may not put new objects
1991	* on top.	1766	* on top.
1992	*/	1767	*/
1993
1994	int	1768	int
1995	check_move_on (object *op, object *originator)	1769	check_move_on (object *op, object *originator)
1996	{	1770	{
1997	object *tmp;	1771	object *tmp;
1998	tag_t tag;
1999	mapstruct *m = op->map;	1772	maptile *m = op->map;
2000	int x = op->x, y = op->y;	1773	int x = op->x, y = op->y;
2001		1774
2002	MoveType move_on, move_slow, move_block;	1775	MoveType move_on, move_slow, move_block;
2003		1776
2004	if (QUERY_FLAG (op, FLAG_NO_APPLY))	1777	if (QUERY_FLAG (op, FLAG_NO_APPLY))
2005	return 0;	1778	return 0;
2006
2007	tag = op->count;
2008		1779
2009	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);	1780	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);
2010	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);	1781	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);
2011	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);	1782	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);
2012		1783
…		…
2028		1799
2029	/* The objects have to be checked from top to bottom.	1800	/* The objects have to be checked from top to bottom.
2030	* Hence, we first go to the top:	1801	* Hence, we first go to the top:
2031	*/	1802	*/
2032		1803
2033	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL && tmp->above != NULL; tmp = tmp->above)	1804	for (tmp = op->ms ().bot; tmp && tmp->above; tmp = tmp->above)
2034	{	1805	{
2035	/* Trim the search when we find the first other spell effect	1806	/* Trim the search when we find the first other spell effect
2036	* this helps performance so that if a space has 50 spell objects,	1807	* this helps performance so that if a space has 50 spell objects,
2037	* we don't need to check all of them.	1808	* we don't need to check all of them.
2038	*/	1809	*/
…		…
2055	{	1826	{
2056	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||	1827	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||
2057	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))	1828	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))
2058	{	1829	{
2059		1830
		1831	float
2060	float diff = tmp->move_slow_penalty * FABS (op->speed);	1832	diff = tmp->move_slow_penalty * fabs (op->speed);
2061		1833
2062	if (op->type == PLAYER)	1834	if (op->type == PLAYER)
2063	if ((QUERY_FLAG (tmp, FLAG_IS_HILLY) && find_skill_by_number (op, SK_CLIMBING)) ||	1835	if ((QUERY_FLAG (tmp, FLAG_IS_HILLY) && find_skill_by_number (op, SK_CLIMBING)) ||
2064	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))	1836	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))
2065	diff /= 4.0;	1837	diff /= 4.0;
…		…
2072	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||	1844	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||
2073	((op->move_type & tmp->move_on) && (op->move_type & ~tmp->move_on & ~tmp->move_block) == 0))	1845	((op->move_type & tmp->move_on) && (op->move_type & ~tmp->move_on & ~tmp->move_block) == 0))
2074	{	1846	{
2075	move_apply (tmp, op, originator);	1847	move_apply (tmp, op, originator);
2076		1848
2077	if (was_destroyed (op, tag))	1849	if (op->destroyed ())
2078	return 1;	1850	return 1;
2079		1851
2080	/* what the person/creature stepped onto has moved the object	1852	/* what the person/creature stepped onto has moved the object
2081	* someplace new. Don't process any further - if we did,	1853	* someplace new. Don't process any further - if we did,
2082	* have a feeling strange problems would result.	1854	* have a feeling strange problems would result.
…		…
2092	/*	1864	/*
2093	* present_arch(arch, map, x, y) searches for any objects with	1865	* present_arch(arch, map, x, y) searches for any objects with
2094	* a matching archetype at the given map and coordinates.	1866	* a matching archetype at the given map and coordinates.
2095	* The first matching object is returned, or NULL if none.	1867	* The first matching object is returned, or NULL if none.
2096	*/	1868	*/
2097
2098	object *	1869	object *
2099	present_arch (const archetype *at, mapstruct *m, int x, int y)	1870	present_arch (const archetype *at, maptile *m, int x, int y)
2100	{	1871	{
2101	object *
2102	tmp;
2103
2104	if (m == NULL || out_of_map (m, x, y))	1872	if (!m || out_of_map (m, x, y))
2105	{	1873	{
2106	LOG (llevError, "Present_arch called outside map.\n");	1874	LOG (llevError, "Present_arch called outside map.\n");
2107	return NULL;	1875	return NULL;
2108	}	1876	}
2109	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)	1877
		1878	for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)
2110	if (tmp->arch == at)	1879	if (tmp->arch == at)
2111	return tmp;	1880	return tmp;
		1881
2112	return NULL;	1882	return NULL;
2113	}	1883	}
2114		1884
2115	/*	1885	/*
2116	* present(type, map, x, y) searches for any objects with	1886	* present(type, map, x, y) searches for any objects with
2117	* a matching type variable at the given map and coordinates.	1887	* a matching type variable at the given map and coordinates.
2118	* The first matching object is returned, or NULL if none.	1888	* The first matching object is returned, or NULL if none.
2119	*/	1889	*/
2120
2121	object *	1890	object *
2122	present (unsigned char type, mapstruct *m, int x, int y)	1891	present (unsigned char type, maptile *m, int x, int y)
2123	{	1892	{
2124	object *
2125	tmp;
2126
2127	if (out_of_map (m, x, y))	1893	if (out_of_map (m, x, y))
2128	{	1894	{
2129	LOG (llevError, "Present called outside map.\n");	1895	LOG (llevError, "Present called outside map.\n");
2130	return NULL;	1896	return NULL;
2131	}	1897	}
2132	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)	1898
		1899	for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)
2133	if (tmp->type == type)	1900	if (tmp->type == type)
2134	return tmp;	1901	return tmp;
		1902
2135	return NULL;	1903	return NULL;
2136	}	1904	}
2137		1905
2138	/*	1906	/*
2139	* present_in_ob(type, object) searches for any objects with	1907	* present_in_ob(type, object) searches for any objects with
2140	* a matching type variable in the inventory of the given object.	1908	* a matching type variable in the inventory of the given object.
2141	* The first matching object is returned, or NULL if none.	1909	* The first matching object is returned, or NULL if none.
2142	*/	1910	*/
2143
2144	object *	1911	object *
2145	present_in_ob (unsigned char type, const object *op)	1912	present_in_ob (unsigned char type, const object *op)
2146	{	1913	{
2147	object *
2148	tmp;
2149
2150	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1914	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
2151	if (tmp->type == type)	1915	if (tmp->type == type)
2152	return tmp;	1916	return tmp;
		1917
2153	return NULL;	1918	return NULL;
2154	}	1919	}
2155		1920
2156	/*	1921	/*
2157	* present_in_ob (type, str, object) searches for any objects with	1922	* present_in_ob (type, str, object) searches for any objects with
…		…
2165	* str is the string to match against. Note that we match against	1930	* str is the string to match against. Note that we match against
2166	* the object name, not the archetype name. this is so that the	1931	* the object name, not the archetype name. this is so that the
2167	* spell code can use one object type (force), but change it's name	1932	* spell code can use one object type (force), but change it's name
2168	* to be unique.	1933	* to be unique.
2169	*/	1934	*/
2170
2171	object *	1935	object *
2172	present_in_ob_by_name (int type, const char *str, const object *op)	1936	present_in_ob_by_name (int type, const char *str, const object *op)
2173	{	1937	{
2174	object *
2175	tmp;
2176
2177	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1938	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2178	{
2179	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))	1939	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))
2180	return tmp;	1940	return tmp;
2181	}	1941
2182	return NULL;	1942	return 0;
2183	}	1943	}
2184		1944
2185	/*	1945	/*
2186	* present_arch_in_ob(archetype, object) searches for any objects with	1946	* present_arch_in_ob(archetype, object) searches for any objects with
2187	* a matching archetype in the inventory of the given object.	1947	* a matching archetype in the inventory of the given object.
2188	* The first matching object is returned, or NULL if none.	1948	* The first matching object is returned, or NULL if none.
2189	*/	1949	*/
2190
2191	object *	1950	object *
2192	present_arch_in_ob (const archetype *at, const object *op)	1951	present_arch_in_ob (const archetype *at, const object *op)
2193	{	1952	{
2194	object *
2195	tmp;
2196
2197	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1953	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
2198	if (tmp->arch == at)	1954	if (tmp->arch == at)
2199	return tmp;	1955	return tmp;
		1956
2200	return NULL;	1957	return NULL;
2201	}	1958	}
2202		1959
2203	/*	1960	/*
2204	* activate recursively a flag on an object inventory	1961	* activate recursively a flag on an object inventory
2205	*/	1962	*/
2206	void	1963	void
2207	flag_inv (object *op, int flag)	1964	flag_inv (object *op, int flag)
2208	{	1965	{
2209	object *
2210	tmp;
2211
2212	if (op->inv)
2213	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1966	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2214	{	1967	{
2215	SET_FLAG (tmp, flag);	1968	SET_FLAG (tmp, flag);
2216	flag_inv (tmp, flag);	1969	flag_inv (tmp, flag);
2217	}	1970	}
2218	} /*	1971	}
		1972
		1973	/*
2219	* desactivate recursively a flag on an object inventory	1974	* deactivate recursively a flag on an object inventory
2220	*/	1975	*/
2221	void	1976	void
2222	unflag_inv (object *op, int flag)	1977	unflag_inv (object *op, int flag)
2223	{	1978	{
2224	object *
2225	tmp;
2226
2227	if (op->inv)
2228	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1979	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2229	{	1980	{
2230	CLEAR_FLAG (tmp, flag);	1981	CLEAR_FLAG (tmp, flag);
2231	unflag_inv (tmp, flag);	1982	unflag_inv (tmp, flag);
2232	}	1983	}
2233	}
2234
2235	/*
2236	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in
2237	* all it's inventory (recursively).
2238	* If checksums are used, a player will get set_cheat called for
2239	* him/her-self and all object carried by a call to this function.
2240	*/
2241
2242	void
2243	set_cheat (object *op)
2244	{
2245	SET_FLAG (op, FLAG_WAS_WIZ);
2246	flag_inv (op, FLAG_WAS_WIZ);
2247	}	1984	}
2248		1985
2249	/*	1986	/*
2250	* find_free_spot(object, map, x, y, start, stop) will search for	1987	* find_free_spot(object, map, x, y, start, stop) will search for
2251	* a spot at the given map and coordinates which will be able to contain	1988	* a spot at the given map and coordinates which will be able to contain
…		…
2253	* to search (see the freearr_x/y[] definition).	1990	* to search (see the freearr_x/y[] definition).
2254	* It returns a random choice among the alternatives found.	1991	* It returns a random choice among the alternatives found.
2255	* start and stop are where to start relative to the free_arr array (1,9	1992	* start and stop are where to start relative to the free_arr array (1,9
2256	* does all 4 immediate directions). This returns the index into the	1993	* does all 4 immediate directions). This returns the index into the
2257	* array of the free spot, -1 if no spot available (dir 0 = x,y)	1994	* array of the free spot, -1 if no spot available (dir 0 = x,y)
2258	* Note - this only checks to see if there is space for the head of the
2259	* object - if it is a multispace object, this should be called for all
2260	* pieces.
2261	* Note2: This function does correctly handle tiled maps, but does not	1995	* Note: This function does correctly handle tiled maps, but does not
2262	* inform the caller. However, insert_ob_in_map will update as	1996	* inform the caller. However, insert_ob_in_map will update as
2263	* necessary, so the caller shouldn't need to do any special work.	1997	* necessary, so the caller shouldn't need to do any special work.
2264	* Note - updated to take an object instead of archetype - this is necessary	1998	* Note - updated to take an object instead of archetype - this is necessary
2265	* because arch_blocked (now ob_blocked) needs to know the movement type	1999	* because arch_blocked (now ob_blocked) needs to know the movement type
2266	* to know if the space in question will block the object. We can't use	2000	* to know if the space in question will block the object. We can't use
2267	* the archetype because that isn't correct if the monster has been	2001	* the archetype because that isn't correct if the monster has been
2268	* customized, changed states, etc.	2002	* customized, changed states, etc.
2269	*/	2003	*/
2270
2271	int	2004	int
2272	find_free_spot (const object *ob, mapstruct *m, int x, int y, int start, int stop)	2005	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)
2273	{	2006	{
2274	int
2275	i,
2276	index = 0, flag;
2277	static int
2278	altern[SIZEOFFREE];	2007	int altern[SIZEOFFREE];
		2008	int index = 0, flag;
2279		2009
2280	for (i = start; i < stop; i++)	2010	for (int i = start; i < stop; i++)
2281	{	2011	{
2282	flag = ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]);	2012	mapxy pos (m, x, y); pos.move (i);
2283	if (!flag)	2013
		2014	if (!pos.normalise ())
		2015	continue;
		2016
		2017	mapspace &ms = *pos;
		2018
		2019	if (ms.flags () & P_IS_ALIVE)
		2020	continue;
		2021
		2022	/* However, often
		2023	* ob doesn't have any move type (when used to place exits)
		2024	* so the AND operation in OB_TYPE_MOVE_BLOCK doesn't work.
		2025	*/
		2026	if (ob && ob->move_type == 0 && ms.move_block != MOVE_ALL)
		2027	{
2284	altern[index++] = i;	2028	altern [index++] = i;
		2029	continue;
		2030	}
2285		2031
2286	/* Basically, if we find a wall on a space, we cut down the search size.	2032	/* Basically, if we find a wall on a space, we cut down the search size.
2287	* In this way, we won't return spaces that are on another side of a wall.	2033	* In this way, we won't return spaces that are on another side of a wall.
2288	* This mostly work, but it cuts down the search size in all directions -	2034	* This mostly work, but it cuts down the search size in all directions -
2289	* if the space being examined only has a wall to the north and empty	2035	* if the space being examined only has a wall to the north and empty
2290	* spaces in all the other directions, this will reduce the search space	2036	* spaces in all the other directions, this will reduce the search space
2291	* to only the spaces immediately surrounding the target area, and	2037	* to only the spaces immediately surrounding the target area, and
2292	* won't look 2 spaces south of the target space.	2038	* won't look 2 spaces south of the target space.
2293	*/	2039	*/
2294	else if ((flag & AB_NO_PASS) && maxfree[i] < stop)	2040	if (ms.move_block == MOVE_ALL && maxfree[i] < stop)
		2041	{
2295	stop = maxfree[i];	2042	stop = maxfree[i];
		2043	continue;
		2044	}
		2045
		2046	/* Note it is intentional that we check ob - the movement type of the
		2047	* head of the object should correspond for the entire object.
		2048	*/
		2049	if (OB_TYPE_MOVE_BLOCK (ob, ms.move_block))
		2050	continue;
		2051
		2052	if (ob->blocked (m, pos.x, pos.y))
		2053	continue;
		2054
		2055	altern [index++] = i;
2296	}	2056	}
		2057
2297	if (!index)	2058	if (!index)
2298	return -1;	2059	return -1;
		2060
2299	return altern[RANDOM () % index];	2061	return altern [rndm (index)];
2300	}	2062	}
2301		2063
2302	/*	2064	/*
2303	* find_first_free_spot(archetype, mapstruct, x, y) works like	2065	* find_first_free_spot(archetype, maptile, x, y) works like
2304	* find_free_spot(), but it will search max number of squares.	2066	* find_free_spot(), but it will search max number of squares.
2305	* But it will return the first available spot, not a random choice.	2067	* But it will return the first available spot, not a random choice.
2306	* Changed 0.93.2: Have it return -1 if there is no free spot available.	2068	* Changed 0.93.2: Have it return -1 if there is no free spot available.
2307	*/	2069	*/
2308
2309	int	2070	int
2310	find_first_free_spot (const object *ob, mapstruct *m, int x, int y)	2071	find_first_free_spot (const object *ob, maptile *m, int x, int y)
2311	{	2072	{
2312	int
2313	i;
2314
2315	for (i = 0; i < SIZEOFFREE; i++)	2073	for (int i = 0; i < SIZEOFFREE; i++)
2316	{
2317	if (!ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]))	2074	if (!ob->blocked (m, x + freearr_x[i], y + freearr_y[i]))
2318	return i;	2075	return i;
2319	}	2076
2320	return -1;	2077	return -1;
2321	}	2078	}
2322		2079
2323	/*	2080	/*
2324	* The function permute(arr, begin, end) randomly reorders the array	2081	* The function permute(arr, begin, end) randomly reorders the array
2325	* arr[begin..end-1].	2082	* arr[begin..end-1].
		2083	* now uses a fisher-yates shuffle, old permute was broken
2326	*/	2084	*/
2327	static void	2085	static void
2328	permute (int *arr, int begin, int end)	2086	permute (int *arr, int begin, int end)
2329	{	2087	{
2330	int	2088	arr += begin;
2331	i,
2332	j,
2333	tmp,
2334	len;
2335
2336	len = end - begin;	2089	end -= begin;
2337	for (i = begin; i < end; i++)
2338	{
2339	j = begin + RANDOM () % len;
2340		2090
2341	tmp = arr[i];	2091	while (--end)
2342	arr[i] = arr[j];	2092	swap (arr [end], arr [rndm (end + 1)]);
2343	arr[j] = tmp;
2344	}
2345	}	2093	}
2346		2094
2347	/* new function to make monster searching more efficient, and effective!	2095	/* new function to make monster searching more efficient, and effective!
2348	* This basically returns a randomized array (in the passed pointer) of	2096	* This basically returns a randomized array (in the passed pointer) of
2349	* the spaces to find monsters. In this way, it won't always look for	2097	* the spaces to find monsters. In this way, it won't always look for
…		…
2352	* the 3x3 area will be searched, just not in a predictable order.	2100	* the 3x3 area will be searched, just not in a predictable order.
2353	*/	2101	*/
2354	void	2102	void
2355	get_search_arr (int *search_arr)	2103	get_search_arr (int *search_arr)
2356	{	2104	{
2357	int	2105	int i;
2358	i;
2359		2106
2360	for (i = 0; i < SIZEOFFREE; i++)	2107	for (i = 0; i < SIZEOFFREE; i++)
2361	{
2362	search_arr[i] = i;	2108	search_arr[i] = i;
2363	}
2364		2109
2365	permute (search_arr, 1, SIZEOFFREE1 + 1);	2110	permute (search_arr, 1, SIZEOFFREE1 + 1);
2366	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);	2111	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);
2367	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);	2112	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);
2368	}	2113	}
…		…
2377	* Perhaps incorrectly, but I'm making the assumption that exclude	2122	* Perhaps incorrectly, but I'm making the assumption that exclude
2378	* is actually want is going to try and move there. We need this info	2123	* is actually want is going to try and move there. We need this info
2379	* because we have to know what movement the thing looking to move	2124	* because we have to know what movement the thing looking to move
2380	* there is capable of.	2125	* there is capable of.
2381	*/	2126	*/
2382
2383	int	2127	int
2384	find_dir (mapstruct *m, int x, int y, object *exclude)	2128	find_dir (maptile *m, int x, int y, object *exclude)
2385	{	2129	{
2386	int
2387	i,
2388	max = SIZEOFFREE, mflags;	2130	int i, max = SIZEOFFREE, mflags;
2389	sint16	2131
2390	nx,	2132	sint16 nx, ny;
2391	ny;
2392	object *	2133	object *tmp;
2393	tmp;	2134	maptile *mp;
2394	mapstruct *
2395	mp;
2396	MoveType
2397	blocked,
2398	move_type;
2399		2135
		2136	MoveType blocked, move_type;
		2137
2400	if (exclude && exclude->head)	2138	if (exclude && exclude->head_ () != exclude)
2401	{	2139	{
2402	exclude = exclude->head;	2140	exclude = exclude->head;
2403	move_type = exclude->move_type;	2141	move_type = exclude->move_type;
2404	}	2142	}
2405	else	2143	else
…		…
2413	mp = m;	2151	mp = m;
2414	nx = x + freearr_x[i];	2152	nx = x + freearr_x[i];
2415	ny = y + freearr_y[i];	2153	ny = y + freearr_y[i];
2416		2154
2417	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);	2155	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);
		2156
2418	if (mflags & P_OUT_OF_MAP)	2157	if (mflags & P_OUT_OF_MAP)
2419	{
2420	max = maxfree[i];	2158	max = maxfree[i];
2421	}
2422	else	2159	else
2423	{	2160	{
2424	blocked = GET_MAP_MOVE_BLOCK (mp, nx, ny);	2161	mapspace &ms = mp->at (nx, ny);
		2162
		2163	blocked = ms.move_block;
2425		2164
2426	if ((move_type & blocked) == move_type)	2165	if ((move_type & blocked) == move_type)
2427	{
2428	max = maxfree[i];	2166	max = maxfree[i];
2429	}
2430	else if (mflags & P_IS_ALIVE)	2167	else if (mflags & P_IS_ALIVE)
2431	{	2168	{
2432	for (tmp = GET_MAP_OB (mp, nx, ny); tmp != NULL; tmp = tmp->above)	2169	for (tmp = ms.bot; tmp; tmp = tmp->above)
2433	{	2170	if ((tmp->flag [FLAG_MONSTER] || tmp->type == PLAYER)
2434	if ((QUERY_FLAG (tmp, FLAG_MONSTER) || tmp->type == PLAYER) && (tmp != exclude || (tmp->head && tmp->head != exclude)))	2171	&& (tmp != exclude || (tmp->head_ () != tmp && tmp->head_ () != exclude)))
2435	{
2436	break;	2172	break;
2437	}	2173
2438	}
2439	if (tmp)	2174	if (tmp)
2440	{
2441	return freedir[i];	2175	return freedir[i];
2442	}
2443	}	2176	}
2444	}	2177	}
2445	}	2178	}
		2179
2446	return 0;	2180	return 0;
2447	}	2181	}
2448		2182
2449	/*	2183	/*
2450	* distance(object 1, object 2) will return the square of the	2184	* distance(object 1, object 2) will return the square of the
2451	* distance between the two given objects.	2185	* distance between the two given objects.
2452	*/	2186	*/
2453
2454	int	2187	int
2455	distance (const object *ob1, const object *ob2)	2188	distance (const object *ob1, const object *ob2)
2456	{	2189	{
2457	int
2458	i;
2459
2460	i = (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);	2190	return (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);
2461	return i;
2462	}	2191	}
2463		2192
2464	/*	2193	/*
2465	* find_dir_2(delta-x,delta-y) will return a direction in which	2194	* find_dir_2(delta-x,delta-y) will return a direction in which
2466	* an object which has subtracted the x and y coordinates of another	2195	* an object which has subtracted the x and y coordinates of another
2467	* object, needs to travel toward it.	2196	* object, needs to travel toward it.
2468	*/	2197	*/
2469
2470	int	2198	int
2471	find_dir_2 (int x, int y)	2199	find_dir_2 (int x, int y)
2472	{	2200	{
2473	int	2201	int q;
2474	q;
2475		2202
2476	if (y)	2203	if (y)
2477	q = x * 100 / y;	2204	q = x * 100 / y;
2478	else if (x)	2205	else if (x)
2479	q = -300 * x;	2206	q = -300 * x;
…		…
2504		2231
2505	return 3;	2232	return 3;
2506	}	2233	}
2507		2234
2508	/*	2235	/*
2509	* absdir(int): Returns a number between 1 and 8, which represent
2510	* the "absolute" direction of a number (it actually takes care of
2511	* "overflow" in previous calculations of a direction).
2512	*/
2513
2514	int
2515	absdir (int d)
2516	{
2517	while (d < 1)
2518	d += 8;
2519	while (d > 8)
2520	d -= 8;
2521	return d;
2522	}
2523
2524	/*
2525	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is	2236	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is
2526	* between two directions (which are expected to be absolute (see absdir())	2237	* between two directions (which are expected to be absolute (see absdir())
2527	*/	2238	*/
2528
2529	int	2239	int
2530	dirdiff (int dir1, int dir2)	2240	dirdiff (int dir1, int dir2)
2531	{	2241	{
2532	int	2242	int d;
2533	d;
2534		2243
2535	d = abs (dir1 - dir2);	2244	d = abs (dir1 - dir2);
2536	if (d > 4)	2245	if (d > 4)
2537	d = 8 - d;	2246	d = 8 - d;
		2247
2538	return d;	2248	return d;
2539	}	2249	}
2540		2250
2541	/* peterm:	2251	/* peterm:
2542	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.	2252	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.
…		…
2545	* This basically means that if direction is 15, then it could either go	2255	* This basically means that if direction is 15, then it could either go
2546	* direction 4, 14, or 16 to get back to where we are.	2256	* direction 4, 14, or 16 to get back to where we are.
2547	* Moved from spell_util.c to object.c with the other related direction	2257	* Moved from spell_util.c to object.c with the other related direction
2548	* functions.	2258	* functions.
2549	*/	2259	*/
2550
2551	int
2552	reduction_dir[SIZEOFFREE][3] = {	2260	int reduction_dir[SIZEOFFREE][3] = {
2553	{0, 0, 0}, /* 0 */	2261	{0, 0, 0}, /* 0 */
2554	{0, 0, 0}, /* 1 */	2262	{0, 0, 0}, /* 1 */
2555	{0, 0, 0}, /* 2 */	2263	{0, 0, 0}, /* 2 */
2556	{0, 0, 0}, /* 3 */	2264	{0, 0, 0}, /* 3 */
2557	{0, 0, 0}, /* 4 */	2265	{0, 0, 0}, /* 4 */
…		…
2605	* find a path to that monster that we found. If not,	2313	* find a path to that monster that we found. If not,
2606	* we don't bother going toward it. Returns 1 if we	2314	* we don't bother going toward it. Returns 1 if we
2607	* can see a direct way to get it	2315	* can see a direct way to get it
2608	* Modified to be map tile aware -.MSW	2316	* Modified to be map tile aware -.MSW
2609	*/	2317	*/
2610
2611
2612	int	2318	int
2613	can_see_monsterP (mapstruct *m, int x, int y, int dir)	2319	can_see_monsterP (maptile *m, int x, int y, int dir)
2614	{	2320	{
2615	sint16	2321	sint16 dx, dy;
2616	dx,
2617	dy;
2618	int
2619	mflags;	2322	int mflags;
2620		2323
2621	if (dir < 0)	2324	if (dir < 0)
2622	return 0; /* exit condition: invalid direction */	2325	return 0; /* exit condition: invalid direction */
2623		2326
2624	dx = x + freearr_x[dir];	2327	dx = x + freearr_x[dir];
…		…
2637	return 0;	2340	return 0;
2638		2341
2639	/* yes, can see. */	2342	/* yes, can see. */
2640	if (dir < 9)	2343	if (dir < 9)
2641	return 1;	2344	return 1;
		2345
2642	return can_see_monsterP (m, x, y, reduction_dir[dir][0]) |	2346	return can_see_monsterP (m, x, y, reduction_dir[dir][0])
2643	can_see_monsterP (m, x, y, reduction_dir[dir][1]) | can_see_monsterP (m, x, y, reduction_dir[dir][2]);	2347	| can_see_monsterP (m, x, y, reduction_dir[dir][1])
		2348	| can_see_monsterP (m, x, y, reduction_dir[dir][2]);
2644	}	2349	}
2645
2646
2647		2350
2648	/*	2351	/*
2649	* can_pick(picker, item): finds out if an object is possible to be	2352	* can_pick(picker, item): finds out if an object is possible to be
2650	* picked up by the picker. Returnes 1 if it can be	2353	* picked up by the picker. Returnes 1 if it can be
2651	* picked up, otherwise 0.	2354	* picked up, otherwise 0.
…		…
2653	* Cf 0.91.3 - don't let WIZ's pick up anything - will likely cause	2356	* Cf 0.91.3 - don't let WIZ's pick up anything - will likely cause
2654	* core dumps if they do.	2357	* core dumps if they do.
2655	*	2358	*
2656	* Add a check so we can't pick up invisible objects (0.93.8)	2359	* Add a check so we can't pick up invisible objects (0.93.8)
2657	*/	2360	*/
2658
2659	int	2361	int
2660	can_pick (const object *who, const object *item)	2362	can_pick (const object *who, const object *item)
2661	{	2363	{
2662	return /*QUERY_FLAG(who,FLAG_WIZ)|| */	2364	return /*QUERY_FLAG(who,FLAG_WIZ)|| */
2663	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&	2365	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&
2664	!QUERY_FLAG (item, FLAG_ALIVE) && !item->invisible && (who->type == PLAYER || item->weight < who->weight / 3));	2366	!QUERY_FLAG (item, FLAG_ALIVE) && !item->invisible && (who->type == PLAYER || item->weight < who->weight / 3));
2665	}	2367	}
2666		2368
2667
2668	/*	2369	/*
2669	* create clone from object to another	2370	* create clone from object to another
2670	*/	2371	*/
2671	object *	2372	object *
2672	object_create_clone (object *asrc)	2373	object_create_clone (object *asrc)
2673	{	2374	{
2674	object *
2675	dst = NULL, *tmp, *src, *part, *prev, *item;	2375	object *dst = 0, *tmp, *src, *prev, *item;
2676		2376
2677	if (!asrc)	2377	if (!asrc)
2678	return NULL;	2378	return 0;
2679	src = asrc;	2379
2680	if (src->head)
2681	src = src->head;	2380	src = asrc->head_ ();
2682		2381
2683	prev = NULL;	2382	prev = 0;
2684	for (part = src; part; part = part->more)	2383	for (object *part = src; part; part = part->more)
2685	{	2384	{
2686	tmp = get_object ();	2385	tmp = part->clone ();
2687	copy_object (part, tmp);
2688	tmp->x -= src->x;	2386	tmp->x -= src->x;
2689	tmp->y -= src->y;	2387	tmp->y -= src->y;
		2388
2690	if (!part->head)	2389	if (!part->head)
2691	{	2390	{
2692	dst = tmp;	2391	dst = tmp;
2693	tmp->head = NULL;	2392	tmp->head = 0;
2694	}	2393	}
2695	else	2394	else
2696	{
2697	tmp->head = dst;	2395	tmp->head = dst;
2698	}	2396
2699	tmp->more = NULL;	2397	tmp->more = 0;
		2398
2700	if (prev)	2399	if (prev)
2701	prev->more = tmp;	2400	prev->more = tmp;
		2401
2702	prev = tmp;	2402	prev = tmp;
2703	}	2403	}
2704		2404
2705	/*** copy inventory ***/
2706	for (item = src->inv; item; item = item->below)	2405	for (item = src->inv; item; item = item->below)
2707	{
2708	(void) insert_ob_in_ob (object_create_clone (item), dst);	2406	insert_ob_in_ob (object_create_clone (item), dst);
2709	}
2710		2407
2711	return dst;	2408	return dst;
2712	}
2713
2714	/* return true if the object was destroyed, 0 otherwise */
2715	int
2716	was_destroyed (const object *op, tag_t old_tag)
2717	{
2718	/* checking for FLAG_FREED isn't necessary, but makes this function more
2719	* robust */
2720	return op->count != old_tag || QUERY_FLAG (op, FLAG_FREED);
2721	}
2722
2723	/* GROS - Creates an object using a string representing its content. */
2724
2725	/* Basically, we save the content of the string to a temp file, then call */
2726
2727	/* load_object on it. I admit it is a highly inefficient way to make things, */
2728
2729	/* but it was simple to make and allows reusing the load_object function. */
2730
2731	/* Remember not to use load_object_str in a time-critical situation. */
2732
2733	/* Also remember that multiparts objects are not supported for now. */
2734
2735	object *
2736	load_object_str (const char *obstr)
2737	{
2738	object *
2739	op;
2740	char
2741	filename[MAX_BUF];
2742
2743	sprintf (filename, "%s/cfloadobstr2044", settings.tmpdir);
2744
2745	FILE *
2746	tempfile = fopen (filename, "w");
2747
2748	if (tempfile == NULL)
2749	{
2750	LOG (llevError, "Error - Unable to access load object temp file\n");
2751	return NULL;
2752	};
2753	fprintf (tempfile, obstr);
2754	fclose (tempfile);
2755
2756	op = get_object ();
2757
2758	object_thawer
2759	thawer (filename);
2760
2761	if (thawer)
2762	load_object (thawer, op, 0);
2763
2764	LOG (llevDebug, " load str completed, object=%s\n", &op->name);
2765	CLEAR_FLAG (op, FLAG_REMOVED);
2766
2767	return op;
2768	}	2409	}
2769		2410
2770	/* This returns the first object in who's inventory that	2411	/* This returns the first object in who's inventory that
2771	* has the same type and subtype match.	2412	* has the same type and subtype match.
2772	* returns NULL if no match.	2413	* returns NULL if no match.
2773	*/	2414	*/
2774	object *	2415	object *
2775	find_obj_by_type_subtype (const object *who, int type, int subtype)	2416	find_obj_by_type_subtype (const object *who, int type, int subtype)
2776	{	2417	{
2777	object *
2778	tmp;
2779
2780	for (tmp = who->inv; tmp; tmp = tmp->below)	2418	for (object *tmp = who->inv; tmp; tmp = tmp->below)
2781	if (tmp->type == type && tmp->subtype == subtype)	2419	if (tmp->type == type && tmp->subtype == subtype)
2782	return tmp;	2420	return tmp;
2783		2421
2784	return NULL;	2422	return 0;
2785	}	2423	}
2786		2424
2787	/* If ob has a field named key, return the link from the list,	2425	/* If ob has a field named key, return the link from the list,
2788	* otherwise return NULL.	2426	* otherwise return NULL.
2789	*	2427	*
…		…
2791	* do the desired thing.	2429	* do the desired thing.
2792	*/	2430	*/
2793	key_value *	2431	key_value *
2794	get_ob_key_link (const object *ob, const char *key)	2432	get_ob_key_link (const object *ob, const char *key)
2795	{	2433	{
2796	key_value *
2797	link;
2798
2799	for (link = ob->key_values; link != NULL; link = link->next)	2434	for (key_value *link = ob->key_values; link; link = link->next)
2800	{
2801	if (link->key == key)	2435	if (link->key == key)
2802	{
2803	return link;	2436	return link;
2804	}
2805	}
2806		2437
2807	return NULL;	2438	return 0;
2808	}	2439	}
2809		2440
2810	/*	2441	/*
2811	* Returns the value of op has an extra_field for key, or NULL.	2442	* Returns the value of op has an extra_field for key, or NULL.
2812	*	2443	*
…		…
2815	* The returned string is shared.	2446	* The returned string is shared.
2816	*/	2447	*/
2817	const char *	2448	const char *
2818	get_ob_key_value (const object *op, const char *const key)	2449	get_ob_key_value (const object *op, const char *const key)
2819	{	2450	{
2820	key_value *	2451	key_value *link;
2821	link;	2452	shstr_cmp canonical_key (key);
2822	const char *
2823	canonical_key;
2824		2453
2825	canonical_key = shstr::find (key);
2826
2827	if (canonical_key == NULL)	2454	if (!canonical_key)
2828	{	2455	{
2829	/* 1. There being a field named key on any object	2456	/* 1. There being a field named key on any object
2830	* implies there'd be a shared string to find.	2457	* implies there'd be a shared string to find.
2831	* 2. Since there isn't, no object has this field.	2458	* 2. Since there isn't, no object has this field.
2832	* 3. Therefore, *this* object doesn't have this field.	2459	* 3. Therefore, *this* object doesn't have this field.
2833	*/	2460	*/
2834	return NULL;	2461	return 0;
2835	}	2462	}
2836		2463
2837	/* This is copied from get_ob_key_link() above -	2464	/* This is copied from get_ob_key_link() above -
2838	* only 4 lines, and saves the function call overhead.	2465	* only 4 lines, and saves the function call overhead.
2839	*/	2466	*/
2840	for (link = op->key_values; link != NULL; link = link->next)	2467	for (link = op->key_values; link; link = link->next)
2841	{
2842	if (link->key == canonical_key)	2468	if (link->key == canonical_key)
2843	{
2844	return link->value;	2469	return link->value;
2845	}	2470
2846	}
2847	return NULL;	2471	return 0;
2848	}	2472	}
2849
2850		2473
2851	/*	2474	/*
2852	* Updates the canonical_key in op to value.	2475	* Updates the canonical_key in op to value.
2853	*	2476	*
2854	* canonical_key is a shared string (value doesn't have to be).	2477	* canonical_key is a shared string (value doesn't have to be).
…		…
2859	* Returns TRUE on success.	2482	* Returns TRUE on success.
2860	*/	2483	*/
2861	int	2484	int
2862	set_ob_key_value_s (object *op, const shstr & canonical_key, const char *value, int add_key)	2485	set_ob_key_value_s (object *op, const shstr & canonical_key, const char *value, int add_key)
2863	{	2486	{
2864	key_value *
2865	field = NULL, *last = NULL;	2487	key_value *field = NULL, *last = NULL;
2866		2488
2867	for (field = op->key_values; field != NULL; field = field->next)	2489	for (field = op->key_values; field != NULL; field = field->next)
2868	{	2490	{
2869	if (field->key != canonical_key)	2491	if (field->key != canonical_key)
2870	{	2492	{
…		…
2879	/* Basically, if the archetype has this key set,	2501	/* Basically, if the archetype has this key set,
2880	* we need to store the null value so when we save	2502	* we need to store the null value so when we save
2881	* it, we save the empty value so that when we load,	2503	* it, we save the empty value so that when we load,
2882	* we get this value back again.	2504	* we get this value back again.
2883	*/	2505	*/
2884	if (get_ob_key_link (&op->arch->clone, canonical_key))	2506	if (get_ob_key_link (op->arch, canonical_key))
2885	field->value = 0;	2507	field->value = 0;
2886	else	2508	else
2887	{	2509	{
2888	if (last)	2510	if (last)
2889	last->next = field->next;	2511	last->next = field->next;
2890	else	2512	else
2891	op->key_values = field->next;	2513	op->key_values = field->next;
2892		2514
2893	delete
2894	field;	2515	delete field;
2895	}	2516	}
2896	}	2517	}
2897	return TRUE;	2518	return TRUE;
2898	}	2519	}
2899	/* IF we get here, key doesn't exist */	2520	/* IF we get here, key doesn't exist */
2900		2521
2901	/* No field, we'll have to add it. */	2522	/* No field, we'll have to add it. */
2902		2523
2903	if (!add_key)	2524	if (!add_key)
2904	{
2905	return FALSE;	2525	return FALSE;
2906	}	2526
2907	/* There isn't any good reason to store a null	2527	/* There isn't any good reason to store a null
2908	* value in the key/value list. If the archetype has	2528	* value in the key/value list. If the archetype has
2909	* this key, then we should also have it, so shouldn't	2529	* this key, then we should also have it, so shouldn't
2910	* be here. If user wants to store empty strings,	2530	* be here. If user wants to store empty strings,
2911	* should pass in ""	2531	* should pass in ""
…		…
2934	* Returns TRUE on success.	2554	* Returns TRUE on success.
2935	*/	2555	*/
2936	int	2556	int
2937	set_ob_key_value (object *op, const char *key, const char *value, int add_key)	2557	set_ob_key_value (object *op, const char *key, const char *value, int add_key)
2938	{	2558	{
2939	shstr
2940	key_ (key);	2559	shstr key_ (key);
2941		2560
2942	return set_ob_key_value_s (op, key_, value, add_key);	2561	return set_ob_key_value_s (op, key_, value, add_key);
2943	}	2562	}
		2563
		2564	object::depth_iterator::depth_iterator (object *container)
		2565	: iterator_base (container)
		2566	{
		2567	while (item->inv)
		2568	item = item->inv;
		2569	}
		2570
		2571	void
		2572	object::depth_iterator::next ()
		2573	{
		2574	if (item->below)
		2575	{
		2576	item = item->below;
		2577
		2578	while (item->inv)
		2579	item = item->inv;
		2580	}
		2581	else
		2582	item = item->env;
		2583	}
		2584
		2585	const char *
		2586	object::flag_desc (char *desc, int len) const
		2587	{
		2588	char *p = desc;
		2589	bool first = true;
		2590
		2591	*p = 0;
		2592
		2593	for (int i = 0; i < NUM_FLAGS; i++)
		2594	{
		2595	if (len <= 10) // magic constant!
		2596	{
		2597	snprintf (p, len, ",...");
		2598	break;
		2599	}
		2600
		2601	if (flag [i])
		2602	{
		2603	int cnt = snprintf (p, len, "%s%d", first ? "" : ",", i);
		2604	len -= cnt;
		2605	p += cnt;
		2606	first = false;
		2607	}
		2608	}
		2609
		2610	return desc;
		2611	}
		2612
		2613	// return a suitable string describing an object in enough detail to find it
		2614	const char *
		2615	object::debug_desc (char *info) const
		2616	{
		2617	char flagdesc[512];
		2618	char info2[256 * 4];
		2619	char *p = info;
		2620
		2621	p += snprintf (p, 512, "{cnt:%d,uuid:%s,name:\"%s\"%s%s,flags:[%s],type:%d}",
		2622	count,
		2623	uuid.c_str (),
		2624	&name,
		2625	title ? "\",title:\"" : "",
		2626	title ? (const char *)title : "",
		2627	flag_desc (flagdesc, 512), type);
		2628
		2629	if (!this->flag[FLAG_REMOVED] && env)
		2630	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));
		2631
		2632	if (map)
		2633	p += snprintf (p, 256, "(on %s@%d+%d)", &map->path, x, y);
		2634
		2635	return info;
		2636	}
		2637
		2638	const char *
		2639	object::debug_desc () const
		2640	{
		2641	static char info[3][256 * 4];
		2642	static int info_idx;
		2643
		2644	return debug_desc (info [++info_idx % 3]);
		2645	}
		2646
		2647	struct region *
		2648	object::region () const
		2649	{
		2650	return map ? map->region (x, y)
		2651	: region::default_region ();
		2652	}
		2653
		2654	const materialtype_t *
		2655	object::dominant_material () const
		2656	{
		2657	if (materialtype_t *mt = name_to_material (materialname))
		2658	return mt;
		2659
		2660	return name_to_material (shstr_unknown);
		2661	}
		2662
		2663	void
		2664	object::open_container (object *new_container)
		2665	{
		2666	if (container == new_container)
		2667	return;
		2668
		2669	if (object *old_container = container)
		2670	{
		2671	if (INVOKE_OBJECT (CLOSE, old_container, ARG_OBJECT (this)))
		2672	return;
		2673
		2674	#if 0
		2675	// remove the "Close old_container" object.
		2676	if (object *closer = old_container->inv)
		2677	if (closer->type == CLOSE_CON)
		2678	closer->destroy ();
		2679	#endif
		2680
		2681	old_container->flag [FLAG_APPLIED] = 0;
		2682	container = 0;
		2683
		2684	esrv_update_item (UPD_FLAGS, this, old_container);
		2685	new_draw_info_format (NDI_UNIQUE, 0, this, "You close %s.", query_name (old_container));
		2686	play_sound (sound_find ("chest_close"));
		2687	}
		2688
		2689	if (new_container)
		2690	{
		2691	if (INVOKE_OBJECT (OPEN, new_container, ARG_OBJECT (this)))
		2692	return;
		2693
		2694	// TODO: this does not seem to serve any purpose anymore?
		2695	#if 0
		2696	// insert the "Close Container" object.
		2697	if (archetype *closer = new_container->other_arch)
		2698	{
		2699	object *closer = arch_to_object (new_container->other_arch);
		2700	closer->flag [FLAG_NO_MAP_SAVE] = 1;
		2701	new_container->insert (closer);
		2702	}
		2703	#endif
		2704
		2705	new_draw_info_format (NDI_UNIQUE, 0, this, "You open %s.", query_name (new_container));
		2706
		2707	new_container->flag [FLAG_APPLIED] = 1;
		2708	container = new_container;
		2709
		2710	esrv_update_item (UPD_FLAGS, this, new_container);
		2711	esrv_send_inventory (this, new_container);
		2712	play_sound (sound_find ("chest_open"));
		2713	}
		2714	}
		2715
		2716	object *
		2717	object::force_find (const shstr name)
		2718	{
		2719	/* cycle through his inventory to look for the MARK we want to
		2720	* place
		2721	*/
		2722	for (object *tmp = inv; tmp; tmp = tmp->below)
		2723	if (tmp->type == FORCE && tmp->slaying == name)
		2724	return splay (tmp);
		2725
		2726	return 0;
		2727	}
		2728
		2729	void
		2730	object::force_add (const shstr name, int duration)
		2731	{
		2732	if (object *force = force_find (name))
		2733	force->destroy ();
		2734
		2735	object *force = get_archetype (FORCE_NAME);
		2736
		2737	force->slaying = name;
		2738	force->stats.food = 1;
		2739	force->speed_left = -1.f;
		2740
		2741	force->set_speed (duration ? 1.f / duration : 0.f);
		2742	force->flag [FLAG_IS_USED_UP] = true;
		2743	force->flag [FLAG_APPLIED] = true;
		2744
		2745	insert (force);
		2746	}
		2747
		2748	void
		2749	object::play_sound (faceidx sound) const
		2750	{
		2751	if (!sound)
		2752	return;
		2753
		2754	if (flag [FLAG_REMOVED])
		2755	return;
		2756
		2757	if (env)
		2758	{
		2759	if (object *pl = in_player ())
		2760	pl->contr->play_sound (sound);
		2761	}
		2762	else
		2763	map->play_sound (sound, x, y);
		2764	}
		2765

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