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Comparing deliantra/server/common/object.C (file contents):
Revision 1.10 by root, Thu Aug 31 17:54:14 2006 UTC vs.
Revision 1.204 by root, Fri Apr 11 17:01:52 2008 UTC

1	/*	1	/*
2	* static char *rcsid_object_c =	2	* This file is part of Deliantra, the Roguelike Realtime MMORPG.
3	* "$Id: object.C,v 1.10 2006/08/31 17:54:14 root Exp $";	3	*
4	*/	4	* Copyright (©) 2005,2006,2007 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
5
6	/*
7	CrossFire, A Multiplayer game for X-windows
8
9	Copyright (C) 2001 Mark Wedel & Crossfire Development Team	5	* Copyright (©) 2001,2007 Mark Wedel & Crossfire Development Team
10	Copyright (C) 1992 Frank Tore Johansen	6	* Copyright (©) 1992,2007 Frank Tore Johansen
11		7	*
12	This program is free software; you can redistribute it and/or modify	8	* Deliantra is free software: you can redistribute it and/or modify
13	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
14	the Free Software Foundation; either version 2 of the License, or	10	* the Free Software Foundation, either version 3 of the License, or
15	(at your option) any later version.	11	* (at your option) any later version.
16		12	*
17	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,
18	but WITHOUT ANY WARRANTY; without even the implied warranty of	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
19	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20	GNU General Public License for more details.	16	* GNU General Public License for more details.
21		17	*
22	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
23	along with this program; if not, write to the Free Software	19	* along with this program. If not, see <http://www.gnu.org/licenses/>.
24	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.	20	*
25		21	* The authors can be reached via e-mail to <support@deliantra.net>
26	The authors can be reached via e-mail at crossfire-devel@real-time.com
27	*/	22	*/
28		23
29	/* Eneq(@csd.uu.se): Added weight-modifiers in environment of objects.	24	/* Eneq(@csd.uu.se): Added weight-modifiers in environment of objects.
30	sub/add_weight will transcend the environment updating the carrying	25	sub/add_weight will transcend the environment updating the carrying
31	variable. */	26	variable. */
32	#include <global.h>	27	#include <global.h>
33	#ifndef WIN32 /* ---win32 exclude headers */
34	#include <stdio.h>	28	#include <stdio.h>
35	#include <sys/types.h>	29	#include <sys/types.h>
36	#include <sys/uio.h>	30	#include <sys/uio.h>
37	#endif /* win32 */
38	#include <object.h>	31	#include <object.h>
39	#include <funcpoint.h>	32	#include <funcpoint.h>
40	#include <skills.h>	33	#include <sproto.h>
41	#include <loader.h>	34	#include <loader.h>
42	#ifdef MEMORY_DEBUG
43	int nroffreeobjects = 0;
44	int nrofallocobjects = 0;
45	#undef OBJ_EXPAND
46	#define OBJ_EXPAND 1
47	#else
48	object objarray[STARTMAX]; /* All objects, allocated this way at first */
49	int nroffreeobjects = STARTMAX; /* How many OBs allocated and free (free) */
50	int nrofallocobjects = STARTMAX; /* How many OBs allocated (free + used) */
51	#endif
52		35
53	object *objects; /* Pointer to the list of used objects */	36	#include <bitset>
54	object *free_objects; /* Pointer to the list of unused objects */
55	object *active_objects; /* List of active objects that need to be processed */
56		37
		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
57	short freearr_x[SIZEOFFREE]=	45	short freearr_x[SIZEOFFREE] = {
58	{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,	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,
59	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	};
60	short freearr_y[SIZEOFFREE]=	51	short freearr_y[SIZEOFFREE] = {
61	{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,	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,
62	-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
		56	};
63	int maxfree[SIZEOFFREE]=	57	int maxfree[SIZEOFFREE] = {
64	{0,9,10,13,14,17,18,21,22,25,26,27,30,31,32,33,36,37,39,39,42,43,44,45,	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,
65	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
		62	};
66	int freedir[SIZEOFFREE]= {	63	int freedir[SIZEOFFREE] = {
67	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,
68	1,2,2,2,2,2,3,4,4,4,4,4,5,6,6,6,6,6,7,8,8,8,8,8};	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,
		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
		68	};
69		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	}
70		143
71	/* 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. */
		145	static int
72	static int compare_ob_value_lists_one(const object * wants, const object * has) {	146	compare_ob_value_lists_one (const object *wants, const object *has)
		147	{
73	key_value * wants_field;	148	key_value *wants_field;
74		149
75	/* n-squared behaviour (see get_ob_key_link()), but I'm hoping both	150	/* n-squared behaviour (see get_ob_key_link()), but I'm hoping both
76	* 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
77	* different structure or at least keep the lists sorted...	152	* different structure or at least keep the lists sorted...
78	*/	153	*/
79		154
80	/* For each field in wants, */	155	/* For each field in wants, */
81	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)
		157	{
82	key_value * has_field;	158	key_value *has_field;
83		159
84	/* Look for a field in has with the same key. */	160	/* Look for a field in has with the same key. */
85	has_field = get_ob_key_link(has, wants_field->key);	161	has_field = get_ob_key_link (has, wants_field->key);
		162
		163	if (has_field == NULL)
86		164	{
87	if (has_field == NULL) {
88	/* No field with that name. */	165	/* No field with that name. */
89	return FALSE;	166	return FALSE;
90	}
91		167	}
		168
92	/* Found the matching field. */	169	/* Found the matching field. */
93	if (has_field->value != wants_field->value) {	170	if (has_field->value != wants_field->value)
		171	{
94	/* Values don't match, so this half of the comparison is false. */	172	/* Values don't match, so this half of the comparison is false. */
95	return FALSE;	173	return FALSE;
96	}	174	}
97		175
98	/* If we get here, we found a match. Now for the next field in wants. */	176	/* If we get here, we found a match. Now for the next field in wants. */
99	}
100		177	}
		178
101	/* If we get here, every field in wants has a matching field in has. */	179	/* If we get here, every field in wants has a matching field in has. */
102	return TRUE;	180	return TRUE;
103	}	181	}
104		182
105	/* Returns TRUE if ob1 has the same key_values as ob2. */	183	/* Returns TRUE if ob1 has the same key_values as ob2. */
		184	static int
106	static int compare_ob_value_lists(const object * ob1, const object * ob2) {	185	compare_ob_value_lists (const object *ob1, const object *ob2)
		186	{
107	/* However, there may be fields in has which aren't partnered in wants,	187	/* However, there may be fields in has which aren't partnered in wants,
108	* so we need to run the comparison *twice*. :(	188	* so we need to run the comparison *twice*. :(
109	*/	189	*/
110	return compare_ob_value_lists_one(ob1, ob2) && compare_ob_value_lists_one(ob2, ob1);	190	return compare_ob_value_lists_one (ob1, ob2) && compare_ob_value_lists_one (ob2, ob1);
111	}	191	}
112		192
113	/* Function examines the 2 objects given to it, and returns true if	193	/* Function examines the 2 objects given to it, and returns true if
114	* they can be merged together.	194	* they can be merged together.
115	*	195	*
116	* 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
117	* replaces - this is mostly for clarity - a decent compiler should hopefully	197	* replaces - this is mostly for clarity - a decent compiler should hopefully
118	* reduce this to the same efficiency.	198	* reduce this to the same efficiency.
119	*	199	*
120	* Check nrof variable *before* calling CAN_MERGE()	200	* Check nrof variable *before* calling can_merge()
121	*	201	*
122	* Improvements made with merge: Better checking on potion, and also	202	* Improvements made with merge: Better checking on potion, and also
123	* check weight	203	* check weight
124	*/	204	*/
125		205	bool object::can_merge_slow (object *ob1, object *ob2)
126	int CAN_MERGE(object *ob1, object *ob2) {	206	{
127
128	/* A couple quicksanity checks */	207	/* A couple quicksanity checks */
129	if ((ob1 == ob2) || (ob1->type != ob2->type)) return 0;	208	if (ob1 == ob2
		209	|| ob1->type != ob2->type
		210	|| ob1->speed != ob2->speed
		211	|| ob1->value != ob2->value
		212	|| ob1->name != ob2->name)
		213	return 0;
130		214
131	if (ob1->speed != ob2->speed) return 0;	215	//TODO: this ain't working well, use nicer and correct overflow check
		216	/* Do not merge objects if nrof would overflow. We use 1UL<<31 since that
		217	* value could not be stored in a sint32 (which unfortunately sometimes is
		218	* used to store nrof).
		219	*/
		220	if (ob1->nrof + ob2->nrof >= 1UL << 31)
		221	return 0;
		222
		223	/* If the objects have been identified, set the BEEN_APPLIED flag.
		224	* This is to the comparison of the flags below will be OK. We
		225	* just can't ignore the been applied or identified flags, as they
		226	* are not equal - just if it has been identified, the been_applied
		227	* flags lose any meaning.
		228	*/
		229	if (QUERY_FLAG (ob1, FLAG_IDENTIFIED))
		230	SET_FLAG (ob1, FLAG_BEEN_APPLIED);
		231
		232	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))
		233	SET_FLAG (ob2, FLAG_BEEN_APPLIED);
		234
		235	if ((ob1->flag ^ ob2->flag).reset (FLAG_INV_LOCKED).reset (FLAG_CLIENT_SENT).any ()
		236	|| ob1->arch != ob2->arch
		237	|| ob1->name != ob2->name
		238	|| ob1->title != ob2->title
		239	|| ob1->msg != ob2->msg
		240	|| ob1->weight != ob2->weight
		241	|| memcmp (&ob1->resist, &ob2->resist, sizeof (ob1->resist))
		242	|| memcmp (&ob1->stats , &ob2->stats , sizeof (ob1->stats) )
		243	|| ob1->attacktype != ob2->attacktype
		244	|| ob1->magic != ob2->magic
		245	|| ob1->slaying != ob2->slaying
		246	|| ob1->skill != ob2->skill
		247	|| ob1->value != ob2->value
		248	|| ob1->animation_id != ob2->animation_id
		249	|| ob1->client_type != ob2->client_type
		250	|| ob1->materialname != ob2->materialname
		251	|| ob1->lore != ob2->lore
		252	|| ob1->subtype != ob2->subtype
		253	|| ob1->move_type != ob2->move_type
		254	|| ob1->move_block != ob2->move_block
		255	|| ob1->move_allow != ob2->move_allow
		256	|| ob1->move_on != ob2->move_on
		257	|| ob1->move_off != ob2->move_off
		258	|| ob1->move_slow != ob2->move_slow
		259	|| ob1->move_slow_penalty != ob2->move_slow_penalty)
		260	return 0;
		261
		262	/* This is really a spellbook check - really, we should
		263	* check all objects in the inventory.
		264	*/
		265	if (ob1->inv || ob2->inv)
		266	{
		267	if (!(ob1->inv && ob2->inv))
		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 */
		275
		276	/* inventory ok - still need to check rest of this object to see
		277	* if it is valid.
		278	*/
		279	}
		280
		281	/* Don't merge objects that are applied. With the new 'body' code,
		282	* it is possible for most any character to have more than one of
		283	* some items equipped, and we don't want those to merge.
		284	*/
		285	if (QUERY_FLAG (ob1, FLAG_APPLIED) || QUERY_FLAG (ob2, FLAG_APPLIED))
		286	return 0;
		287
132	/* 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
133	* 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
134	* check?	290	* check?
135	*/	291	*/
136	if (!QUERY_FLAG(ob1,FLAG_ANIMATE) && FABS((ob1)->speed) > MIN_ACTIVE_SPEED)	292	if (!QUERY_FLAG (ob1, FLAG_ANIMATE) && ob1->has_active_speed ())
		293	return 0;
		294
		295	switch (ob1->type)
		296	{
		297	case SCROLL:
		298	if (ob1->level != ob2->level)
		299	return 0;
		300	break;
		301	}
		302
		303	if (ob1->key_values != NULL || ob2->key_values != NULL)
		304	{
		305	/* At least one of these has key_values. */
		306	if ((ob1->key_values == NULL) != (ob2->key_values == NULL))
		307	/* One has fields, but the other one doesn't. */
137	return 0;	308	return 0;
138		309	else if (!compare_ob_value_lists (ob1, ob2))
139	/* Do not merge objects if nrof would overflow. We use 1UL<<31 since that
140	* value could not be stored in a sint32 (which unfortunately sometimes is
141	* used to store nrof).
142	*/
143	if (ob1->nrof+ob2->nrof >= 1UL<<31)
144	return 0;	310	return 0;
		311	}
145		312
146	/* This is really a spellbook check - really, we should	313	if (ob1->self || ob2->self)
147	* check all objects in the inventory.
148	*/
149	if (ob1->inv || ob2->inv) {
150	/* if one object has inventory but the other doesn't, not equiv */
151	if ((ob1->inv && !ob2->inv) || (ob2->inv && !ob1->inv)) return 0;
152
153	/* Now check to see if the two inventory objects could merge */
154	if (!CAN_MERGE(ob1->inv, ob2->inv)) return 0;
155
156	/* inventory ok - still need to check rest of this object to see
157	* if it is valid.
158	*/
159	}	314	{
		315	ob1->optimise ();
		316	ob2->optimise ();
160		317
161	/* If the objects have been identified, set the BEEN_APPLIED flag.	318	if (ob1->self || ob2->self)
162	* This is to the comparison of the flags below will be OK. We
163	* just can't ignore the been applied or identified flags, as they
164	* are not equal - just if it has been identified, the been_applied
165	* flags lose any meaning.
166	*/
167	if (QUERY_FLAG(ob1, FLAG_IDENTIFIED))
168	SET_FLAG(ob1, FLAG_BEEN_APPLIED);
169
170	if (QUERY_FLAG(ob2, FLAG_IDENTIFIED))
171	SET_FLAG(ob2, FLAG_BEEN_APPLIED);
172
173
174	/* the 0x400000 on flags2 is FLAG_INV_LOCK. I don't think something
175	* being locked in inventory should prevent merging.
176	* 0x4 in flags3 is CLIENT_SENT
177	*/
178	if ((ob1->arch != ob2->arch) ||
179	(ob1->flags[0] != ob2->flags[0]) ||
180	(ob1->flags[1] != ob2->flags[1]) ||
181	((ob1->flags[2] & ~0x400000) != (ob2->flags[2] & ~ 0x400000)) ||
182	((ob1->flags[3] & ~0x4) != (ob2->flags[3] & ~0x4)) ||
183	(ob1->name != ob2->name) ||
184	(ob1->title != ob2->title) ||
185	(ob1->msg != ob2->msg) ||
186	(ob1->weight != ob2->weight) ||
187	(memcmp(&ob1->resist, &ob2->resist, sizeof(ob1->resist))!=0) ||
188	(memcmp(&ob1->stats, &ob2->stats, sizeof(ob1->stats))!=0) ||
189	(ob1->attacktype != ob2->attacktype) ||
190	(ob1->magic != ob2->magic) ||
191	(ob1->slaying != ob2->slaying) ||
192	(ob1->skill != ob2->skill) ||
193	(ob1->value != ob2->value) ||
194	(ob1->animation_id != ob2->animation_id) ||
195	(ob1->client_type != ob2->client_type) ||
196	(ob1->materialname != ob2->materialname) ||
197	(ob1->lore != ob2->lore) ||
198	(ob1->subtype != ob2->subtype) ||
199	(ob1->move_type != ob2->move_type) ||
200	(ob1->move_block != ob2->move_block) ||
201	(ob1->move_allow != ob2->move_allow) ||
202	(ob1->move_on != ob2->move_on) ||
203	(ob1->move_off != ob2->move_off) ||
204	(ob1->move_slow != ob2->move_slow) ||
205	(ob1->move_slow_penalty != ob2->move_slow_penalty)
206	)	319	{
		320	int k1 = ob1->self ? HvTOTALKEYS (ob1->self) : 0;
		321	int k2 = ob2->self ? HvTOTALKEYS (ob2->self) : 0;
		322
		323	if (k1 != k2)
207	return 0;	324	return 0;
208		325	else if (k1 == 0)
209	/* Don't merge objects that are applied. With the new 'body' code,
210	* it is possible for most any character to have more than one of
211	* some items equipped, and we don't want those to merge.
212	*/
213	if (QUERY_FLAG(ob1, FLAG_APPLIED) || QUERY_FLAG(ob2, FLAG_APPLIED))
214	return 0;	326	return 1;
215		327	else if (!cfperl_can_merge (ob1, ob2))
216	switch (ob1->type) {
217	case SCROLL:
218	if (ob1->level != ob2->level) return 0;
219	break;
220
221	}
222	if (ob1->key_values != NULL || ob2->key_values != NULL) {
223	/* At least one of these has key_values. */
224	if ((ob1->key_values == NULL) != (ob2->key_values == NULL)) {
225	/* One has fields, but the other one doesn't. */
226	return 0;	328	return 0;
227	} else if (!compare_ob_value_lists(ob1, ob2)) {
228	return 0;
229	}	329	}
230	}	330	}
231		331
232	/* Everything passes, must be OK. */	332	/* Everything passes, must be OK. */
233	return 1;	333	return 1;
234	}	334	}
235		335
236	/*	336	/*
237	* sum_weight() is a recursive function which calculates the weight	337	* sum_weight() is a recursive function which calculates the weight
238	* 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
239	* containers are carrying, and sums it up.	339	* containers are carrying, and sums it up.
240	*/	340	*/
241	signed long sum_weight(object *op) {	341	long
		342	sum_weight (object *op)
		343	{
242	signed long sum;	344	long sum;
243	object *inv;	345	object *inv;
		346
244	for(sum = 0, inv = op->inv; inv != NULL; inv = inv->below) {	347	for (sum = 0, inv = op->inv; inv; inv = inv->below)
		348	{
245	if (inv->inv)	349	if (inv->inv)
246	sum_weight(inv);	350	sum_weight (inv);
		351
247	sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1);	352	sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1);
248	}	353	}
		354
249	if (op->type == CONTAINER && op->stats.Str)	355	if (op->type == CONTAINER && op->stats.Str)
250	sum = (sum * (100 - op->stats.Str))/100;	356	sum = (sum * (100 - op->stats.Str)) / 100;
		357
251	if(op->carrying != sum)	358	if (op->carrying != sum)
252	op->carrying = sum;	359	op->carrying = sum;
		360
253	return sum;	361	return sum;
254	}	362	}
255		363
256	/**	364	/**
257	* Return the outermost environment object for a given object.	365	* Return the outermost environment object for a given object.
258	*/	366	*/
259		367
		368	object *
260	object *object_get_env_recursive (object *op) {	369	object_get_env_recursive (object *op)
		370	{
261	while (op->env != NULL)	371	while (op->env != NULL)
262	op = op->env;	372	op = op->env;
263	return op;	373	return op;
264	}
265
266	/*
267	* Eneq(@csd.uu.se): Since we can have items buried in a character we need
268	* a better check. We basically keeping traversing up until we can't
269	* or find a player.
270	*/
271
272	object *is_player_inv (object *op) {
273	for (;op!=NULL&&op->type!=PLAYER; op=op->env)
274	if (op->env==op)
275	op->env = NULL;
276	return op;
277	}	374	}
278		375
279	/*	376	/*
280	* Used by: Crossedit: dump. Server DM commands: dumpbelow, dump.	377	* Used by: Crossedit: dump. Server DM commands: dumpbelow, dump.
281	* Some error messages.	378	* Some error messages.
282	* 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.
283	*/	380	*/
284		381	char *
285	void dump_object2(object *op) {
286	errmsg[0] = 0;
287	return;
288	//TODO//D#d#
289	#if 0
290	char *cp;
291	/* object *tmp;*/
292
293	if(op->arch!=NULL) {
294	strcat(errmsg,"arch ");
295	strcat(errmsg,op->arch->name?op->arch->name:"(null)");
296	strcat(errmsg,"\n");
297	if((cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)
298	strcat(errmsg,cp);
299	#if 0
300	/* Don't dump player diffs - they are too long, mostly meaningless, and
301	* will overflow the buffer.
302	* Changed so that we don't dump inventory either. This may
303	* also overflow the buffer.
304	*/
305	if(op->type!=PLAYER && (cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)
306	strcat(errmsg,cp);
307	for (tmp=op->inv; tmp; tmp=tmp->below)
308	dump_object2(tmp);
309	#endif
310	strcat(errmsg,"end\n");
311	} else {
312	strcat(errmsg,"Object ");
313	if (op->name==NULL) strcat(errmsg, "(null)");
314	else strcat(errmsg,op->name);
315	strcat(errmsg,"\n");
316	#if 0
317	if((cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)
318	strcat(errmsg,cp);
319	for (tmp=op->inv; tmp; tmp=tmp->below)
320	dump_object2(tmp);
321	#endif
322	strcat(errmsg,"end\n");
323	}
324	#endif
325	}
326
327	/*
328	* Dumps an object. Returns output in the static global errmsg array.
329	*/
330
331	void dump_object(object *op) {	382	dump_object (object *op)
332	if(op==NULL) {	383	{
333	strcpy(errmsg,"[NULL pointer]");	384	if (!op)
334	return;	385	return strdup ("[NULLOBJ]");
335	}
336	errmsg[0]='\0';
337	dump_object2(op);
338	}
339		386
340	void dump_all_objects(void) {	387	object_freezer freezer;
341	object *op;	388	op->write (freezer);
342	for(op=objects;op!=NULL;op=op->next) {	389	return freezer.as_string ();
343	dump_object(op);
344	fprintf(logfile, "Object %d\n:%s\n", op->count, errmsg);
345	}
346	}	390	}
347		391
348	/*	392	/*
349	* 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
350	* multi-object 1 which is closest to the second object.	394	* multi-object 1 which is closest to the second object.
351	* If it's not a multi-object, it is returned.	395	* If it's not a multi-object, it is returned.
352	*/	396	*/
353		397	object *
354	object *get_nearest_part(object *op, const object *pl) {	398	get_nearest_part (object *op, const object *pl)
		399	{
355	object *tmp,*closest;	400	object *tmp, *closest;
356	int last_dist,i;	401	int last_dist, i;
		402
357	if(op->more==NULL)	403	if (op->more == NULL)
358	return op;	404	return op;
359	for(last_dist=distance(op,pl),closest=op,tmp=op->more;tmp!=NULL;tmp=tmp->more)	405	for (last_dist = distance (op, pl), closest = op, tmp = op->more; tmp != NULL; tmp = tmp->more)
360	if((i=distance(tmp,pl))<last_dist)	406	if ((i = distance (tmp, pl)) < last_dist)
361	closest=tmp,last_dist=i;	407	closest = tmp, last_dist = i;
362	return closest;	408	return closest;
363	}	409	}
364		410
365	/*	411	/*
366	* 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.
367	*/	413	*/
368		414	object *
369	object *find_object(tag_t i) {	415	find_object (tag_t i)
370	object *op;	416	{
371	for(op=objects;op!=NULL;op=op->next)	417	for_all_objects (op)
372	if(op->count==i)	418	if (op->count == i)
373	break;
374	return op;	419	return op;
		420
		421	return 0;
375	}	422	}
376		423
377	/*	424	/*
378	* 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.
379	* Used only by the patch command, but not all that useful.	426	* Used only by the patch command, but not all that useful.
380	* Enables features like "patch <name-of-other-player> food 999"	427	* Enables features like "patch <name-of-other-player> food 999"
381	*/	428	*/
382		429	object *
383	object *find_object_name(const char *str) {	430	find_object_name (const char *str)
384	const char *name=add_string(str);	431	{
		432	shstr_cmp str_ (str);
385	object *op;	433	object *op;
386	for(op=objects;op!=NULL;op=op->next)	434
		435	for_all_objects (op)
387	if(op->name==name)	436	if (op->name == str_)
388	break;	437	break;
389	free_string(name);	438
390	return op;	439	return op;
391	}	440	}
392
393	void free_all_object_data(void) {
394	#ifdef MEMORY_DEBUG
395	object *op, *next;
396
397	for (op=free_objects; op!=NULL; ) {
398	next=op->next;
399	free(op);
400	nrofallocobjects--;
401	nroffreeobjects--;
402	op=next;
403	}
404	#endif
405	LOG(llevDebug,"%d allocated objects, %d free objects, STARMAX=%d\n",
406	nrofallocobjects, nroffreeobjects,STARTMAX);
407	}
408
409	/*
410	* Returns the object which this object marks as being the owner.
411	* A id-scheme is used to avoid pointing to objects which have been
412	* freed and are now reused. If this is detected, the owner is
413	* set to NULL, and NULL is returned.
414	* Changed 2004-02-12 - if the player is setting at the play again
415	* prompt, he is removed, and we don't want to treat him as an owner of
416	* anything, so check removed flag. I don't expect that this should break
417	* anything - once an object is removed, it is basically dead anyways.
418	*/
419
420	object *get_owner(object *op) {
421	if(op->owner==NULL)
422	return NULL;
423
424	if (!QUERY_FLAG(op->owner,FLAG_FREED) && !QUERY_FLAG(op->owner, FLAG_REMOVED) &&
425	op->owner->count==op->ownercount)
426	return op->owner;
427
428	op->owner=NULL;
429	op->ownercount=0;
430	return NULL;
431	}
432
433	void clear_owner(object *op)
434	{
435	if (!op) return;
436
437	if (op->owner && op->ownercount == op->owner->count)
438	op->owner->refcount--;
439
440	op->owner = NULL;
441	op->ownercount = 0;
442	}
443
444
445		441
446	/*	442	/*
447	* 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
448	* skill and experience objects.	444	* skill and experience objects.
		445	* ACTUALLY NO! investigate! TODO
449	*/	446	*/
450	void set_owner (object *op, object *owner)	447	void
		448	object::set_owner (object *owner)
451	{	449	{
452	if(owner==NULL||op==NULL)	450	// allow objects which own objects
		451	if (owner)
		452	while (owner->owner)
		453	owner = owner->owner;
		454
		455	if (flag [FLAG_FREED])
		456	{
		457	LOG (llevError | logBacktrace, "tried to set owner of %s to %s\n", debug_desc (), owner->debug_desc ());
453	return;	458	return;
		459	}
454		460
455	/* next line added to allow objects which own objects */
456	/* Add a check for ownercounts in here, as I got into an endless loop
457	* with the fireball owning a poison cloud which then owned the
458	* fireball. I believe that was caused by one of the objects getting
459	* freed and then another object replacing it. Since the ownercounts
460	* didn't match, this check is valid and I believe that cause is valid.
461	*/
462	while (owner->owner && owner!=owner->owner &&
463	owner->ownercount==owner->owner->count) owner=owner->owner;
464
465	/* IF the owner still has an owner, we did not resolve to a final owner.
466	* so lets not add to that.
467	*/
468	if (owner->owner) return;
469
470	op->owner=owner;	461	this->owner = owner;
471
472	op->ownercount=owner->count;
473	owner->refcount++;
474
475	}	462	}
476		463
477	/* Set the owner to clone's current owner and set the skill and experience	464	int
478	* objects to clone's objects (typically those objects that where the owner's	465	object::slottype () const
479	* current skill and experience objects at the time when clone's owner was
480	* set - not the owner's current skill and experience objects).
481	*
482	* Use this function if player created an object (e.g. fire bullet, swarm
483	* spell), and this object creates further objects whose kills should be
484	* accounted for the player's original skill, even if player has changed
485	* skills meanwhile.
486	*/
487	void copy_owner (object *op, object *clone)
488	{	466	{
489	object *owner = get_owner (clone);	467	if (type == SKILL)
490	if (owner == NULL) {	468	{
491	/* players don't have owners - they own themselves. Update	469	if (IS_COMBAT_SKILL (subtype)) return slot_combat;
492	* as appropriate.	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	}
		480
		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)
493	*/	504	{
494	if (clone->type == PLAYER) owner=clone;	505	current_weapon = chosen_skill = 0;
495	else return;	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)
496	}	521	{
497	set_owner(op, owner);	522	LOG (llevError | logBacktrace, "%s changed to unapplied weapon %s",
		523	&name, ob->debug_desc ());
		524	return false;
		525	}
498		526
499	}	527	return true;
500
501	/*
502	* Resets vital variables in an object
503	*/
504
505	void reset_object(object *op) {
506
507	op->name = NULL;
508	op->name_pl = NULL;
509	op->title = NULL;
510	op->race = NULL;
511	op->slaying = NULL;
512	op->skill = NULL;
513	op->msg = NULL;
514	op->materialname = NULL;
515	op->lore = NULL;
516	clear_object(op);
517	}	528	}
518		529
519	/* Zero the key_values on op, decrementing the shared-string	530	/* Zero the key_values on op, decrementing the shared-string
520	* refcounts and freeing the links.	531	* refcounts and freeing the links.
521	*/	532	*/
		533	static void
522	static void free_key_values(object * op) {	534	free_key_values (object *op)
523	key_value * i;	535	{
524	key_value * next = NULL;	536	for (key_value *i = op->key_values; i; )
525		537	{
526	if (op->key_values == NULL) return;	538	key_value *next = i->next;
		539	delete i;
		540
		541	i = next;
527		542	}
528	for (i = op->key_values; i != NULL; i = next) {	543
529	/* Store next *first*. */	544	op->key_values = 0;
530	next = i->next;	545	}
		546
		547	object &
		548	object::operator =(const object &src)
		549	{
		550	bool is_freed = flag [FLAG_FREED];
		551	bool is_removed = flag [FLAG_REMOVED];
		552
		553	*(object_copy *)this = src;
		554
		555	flag [FLAG_FREED] = is_freed;
		556	flag [FLAG_REMOVED] = is_removed;
		557
		558	/* Copy over key_values, if any. */
		559	if (src.key_values)
		560	{
		561	key_value *tail = 0;
		562	key_values = 0;
		563
		564	for (key_value *i = src.key_values; i; i = i->next)
531		565	{
532	if (i->key) FREE_AND_CLEAR_STR(i->key);	566	key_value *new_link = new key_value;
533	if (i->value) FREE_AND_CLEAR_STR(i->value);	567
534	i->next = NULL;	568	new_link->next = 0;
535	free(i);	569	new_link->key = i->key;
536	}	570	new_link->value = i->value;
		571
		572	/* Try and be clever here, too. */
		573	if (!key_values)
		574	{
		575	key_values = new_link;
		576	tail = new_link;
		577	}
		578	else
		579	{
		580	tail->next = new_link;
		581	tail = new_link;
		582	}
		583	}
537		584	}
538	op->key_values = NULL;
539	}	585	}
540		586
541
542	/*	587	/*
543	* clear_object() frees everything allocated by an object, and also
544	* clears all variables and flags to default settings.
545	*/
546
547	void clear_object(object *op) {
548	op->clear ();
549
550	event *evt;
551	event *evt2;
552
553	/* redo this to be simpler/more efficient. Was also seeing
554	* crashes in the old code. Move this to the top - am
555	* seeing periodic crashes in this code, and would like to have
556	* as much info available as possible (eg, object name).
557	*/
558	for (evt = op->events; evt; evt=evt2) {
559	evt2 = evt->next;
560
561	if (evt->hook != NULL) FREE_AND_CLEAR_STR(evt->hook);
562	if (evt->plugin != NULL) FREE_AND_CLEAR_STR(evt->plugin);
563	if (evt->options != NULL) FREE_AND_CLEAR_STR(evt->options);
564
565	free(evt);
566	}
567	op->events = NULL;
568
569	free_key_values(op);
570
571	/* the memset will clear all these values for us, but we need
572	* to reduce the refcount on them.
573	*/
574	if (op->name!=NULL) FREE_AND_CLEAR_STR(op->name);
575	if (op->name_pl!=NULL) FREE_AND_CLEAR_STR(op->name_pl);
576	if (op->title != NULL) FREE_AND_CLEAR_STR(op->title);
577	if (op->race!=NULL) FREE_AND_CLEAR_STR(op->race);
578	if (op->slaying!=NULL) FREE_AND_CLEAR_STR(op->slaying);
579	if (op->skill!=NULL) FREE_AND_CLEAR_STR(op->skill);
580	if (op->msg!=NULL) FREE_AND_CLEAR_STR(op->msg);
581	if (op->lore!=NULL) FREE_AND_CLEAR_STR(op->lore);
582	if (op->materialname!= NULL) FREE_AND_CLEAR_STR(op->materialname);
583
584
585	memset((void*)op, 0, sizeof (object_special));
586	/* Below here, we clear things that are not done by the memset,
587	* or set default values that are not zero.
588	*/
589	/* This is more or less true */
590	SET_FLAG(op, FLAG_REMOVED);
591
592
593	op->contr = NULL;
594	op->below=NULL;
595	op->above=NULL;
596	op->inv=NULL;
597	op->events=NULL;
598	op->container=NULL;
599	op->env=NULL;
600	op->more=NULL;
601	op->head=NULL;
602	op->map=NULL;
603	op->refcount=0;
604	op->active_next = NULL;
605	op->active_prev = NULL;
606	/* What is not cleared is next, prev, and count */
607
608	op->expmul=1.0;
609	op->face = blank_face;
610	op->attacked_by_count = (tag_t) -1;
611	if (settings.casting_time)
612	op->casting_time = -1;
613
614	}
615
616	/*
617	* copy object first frees everything allocated by the second object,	588	* copy_to first frees everything allocated by the dst object,
618	* and then copies the contends of the first object into the second	589	* and then copies the contents of itself into the second
619	* object, allocating what needs to be allocated. Basically, any	590	* object, allocating what needs to be allocated. Basically, any
620	* data that is malloc'd needs to be re-malloc/copied. Otherwise,	591	* data that is malloc'd needs to be re-malloc/copied. Otherwise,
621	* if the first object is freed, the pointers in the new object	592	* if the first object is freed, the pointers in the new object
622	* will point at garbage.	593	* will point at garbage.
623	*/	594	*/
		595	void
		596	object::copy_to (object *dst)
		597	{
		598	*dst = *this;
624		599
625	void copy_object(object *op2, object *op) {	600	if (speed < 0)
626	int is_freed=QUERY_FLAG(op,FLAG_FREED),is_removed=QUERY_FLAG(op,FLAG_REMOVED);	601	dst->speed_left -= rndm ();
627	event *evt, *evt2, *evt_new;
628		602
629	op->clear ();	603	dst->set_speed (dst->speed);
630
631	/* Decrement the refcounts, but don't bother zeroing the fields;
632	they'll be overwritten by memcpy. */
633	if(op->name!=NULL) free_string(op->name);
634	if(op->name_pl!=NULL) free_string(op->name_pl);
635	if(op->title!=NULL) free_string(op->title);
636	if(op->race!=NULL) free_string(op->race);
637	if(op->slaying!=NULL) free_string(op->slaying);
638	if(op->skill!=NULL) free_string(op->skill);
639	if(op->msg!=NULL) free_string(op->msg);
640	if(op->lore!=NULL) free_string(op->lore);
641	if(op->materialname != NULL) free_string(op->materialname);
642	if(op->custom_name != NULL) free_string(op->custom_name);
643
644	/* Basically, same code as from clear_object() */
645	for (evt = op->events; evt; evt=evt2) {
646	evt2 = evt->next;
647
648	if (evt->hook != NULL) FREE_AND_CLEAR_STR(evt->hook);
649	if (evt->plugin != NULL) FREE_AND_CLEAR_STR(evt->plugin);
650	if (evt->options != NULL) FREE_AND_CLEAR_STR(evt->options);
651
652	free(evt);
653	}
654	op->events = NULL;
655
656	free_key_values(op);
657
658	*(object_special *)op = *(object_special *)op2;
659	op2->clone (op);
660
661	if(is_freed) SET_FLAG(op,FLAG_FREED);
662	if(is_removed) SET_FLAG(op,FLAG_REMOVED);
663	if(op->name!=NULL) add_refcount(op->name);
664	if(op->name_pl!=NULL) add_refcount(op->name_pl);
665	if(op->title!=NULL) add_refcount(op->title);
666	if(op->race!=NULL) add_refcount(op->race);
667	if(op->slaying!=NULL) add_refcount(op->slaying);
668	if(op->skill!=NULL) add_refcount(op->skill);
669	if(op->lore!=NULL) add_refcount(op->lore);
670	if(op->msg!=NULL) add_refcount(op->msg);
671	if(op->custom_name!=NULL) add_refcount(op->custom_name);
672	if (op->materialname != NULL) add_refcount(op->materialname);
673
674	if((op2->speed<0) && !editor)
675	op->speed_left=op2->speed_left-RANDOM()%200/100.0;
676
677	/* Copy over event information */
678	evt2 = NULL;
679	for (evt = op2->events; evt; evt=evt->next) {
680	evt_new = (event *) malloc(sizeof(event));
681	memcpy(evt_new, evt, sizeof(event));
682	if (evt_new->hook) add_refcount(evt_new->hook);
683	if (evt_new->plugin) add_refcount(evt_new->plugin);
684	if (evt_new->options) add_refcount(evt_new->options);
685	evt_new->next = NULL;
686
687	/* Try to be a little clever here, and store away the
688	* last event we copied, so that its simpler to update the
689	* pointer.
690	*/
691	if (evt2)
692	evt2->next = evt_new;
693	else
694	op->events = evt_new;
695
696	evt2 = evt_new;
697	}
698	/* Copy over key_values, if any. */
699	if (op2->key_values != NULL) {
700	key_value * tail = NULL;
701	key_value * i;
702
703	op->key_values = NULL;
704
705	for (i = op2->key_values; i != NULL; i = i->next) {
706	key_value * new_link = (key_value *) malloc(sizeof(key_value));
707
708	new_link->next = NULL;
709	new_link->key = add_refcount(i->key);
710	if (i->value)
711	new_link->value = add_refcount(i->value);
712	else
713	new_link->value = NULL;
714
715	/* Try and be clever here, too. */
716	if (op->key_values == NULL) {
717	op->key_values = new_link;
718	tail = new_link;
719	} else {
720	tail->next = new_link;
721	tail = new_link;
722	}
723	}
724	}
725
726	update_ob_speed(op);
727	}	604	}
728		605
729	/*	606	void
730	* expand_objects() allocates more objects for the list of unused objects.	607	object::instantiate ()
731	* It is called from get_object() if the unused list is empty.	608	{
732	*/	609	if (!uuid.seq) // HACK
		610	uuid = UUID::gen ();
733		611
734	void expand_objects(void) {	612	speed_left = -0.1f;
735	int i;	613	/* copy the body_info to the body_used - this is only really
736	object *obj;	614	* need for monsters, but doesn't hurt to do it for everything.
737	obj = (object *) CALLOC(OBJ_EXPAND,sizeof(object));	615	* by doing so, when a monster is created, it has good starting
738		616	* values for the body_used info, so when items are created
739	if(obj==NULL)	617	* for it, they can be properly equipped.
740	fatal(OUT_OF_MEMORY);
741	free_objects=obj;
742	obj[0].prev=NULL;
743	obj[0].next= &obj[1],
744	SET_FLAG(&(obj[0]), FLAG_REMOVED);
745	SET_FLAG(&(obj[0]), FLAG_FREED);
746
747	for(i=1;i<OBJ_EXPAND-1;i++) {
748	obj[i].next= &obj[i+1],
749	obj[i].prev= &obj[i-1],
750	SET_FLAG(&(obj[i]), FLAG_REMOVED);
751	SET_FLAG(&(obj[i]), FLAG_FREED);
752	}
753	obj[OBJ_EXPAND-1].prev= &obj[OBJ_EXPAND-2],
754	obj[OBJ_EXPAND-1].next=NULL,
755	SET_FLAG(&(obj[OBJ_EXPAND-1]), FLAG_REMOVED);
756	SET_FLAG(&(obj[OBJ_EXPAND-1]), FLAG_FREED);
757
758	nrofallocobjects += OBJ_EXPAND;
759	nroffreeobjects += OBJ_EXPAND;
760	}
761
762	/*
763	* get_object() grabs an object from the list of unused objects, makes
764	* sure it is initialised, and returns it.
765	* If there are no free objects, expand_objects() is called to get more.
766	*/
767
768	object *get_object(void) {
769	object *op;
770
771	if(free_objects==NULL) {
772	expand_objects();
773	}
774	op=free_objects;
775	#ifdef MEMORY_DEBUG
776	/* The idea is hopefully by doing a realloc, the memory
777	* debugging program will now use the current stack trace to
778	* report leaks.
779	*/	618	*/
780	op = realloc(op, sizeof(object));	619	for (int i = NUM_BODY_LOCATIONS; i--; )
781	SET_FLAG(op, FLAG_REMOVED);	620	slot[i].used = slot[i].info;
782	SET_FLAG(op, FLAG_FREED);
783	#endif
784		621
785	if(!QUERY_FLAG(op,FLAG_FREED)) {	622	attachable::instantiate ();
786	LOG(llevError,"Fatal: Getting busy object.\n");	623	}
787	}	624
788	free_objects=op->next;	625	object *
789	if(free_objects!=NULL)	626	object::clone ()
790	free_objects->prev=NULL;	627	{
791	op->count= ++ob_count;	628	object *neu = create ();
792	op->name=NULL;	629	copy_to (neu);
793	op->name_pl=NULL;
794	op->title=NULL;
795	op->race=NULL;
796	op->slaying=NULL;
797	op->skill = NULL;
798	op->lore=NULL;
799	op->msg=NULL;
800	op->materialname=NULL;
801	op->next=objects;
802	op->prev=NULL;
803	op->active_next = NULL;
804	op->active_prev = NULL;
805	if(objects!=NULL)
806	objects->prev=op;
807	objects=op;
808	clear_object(op);
809	SET_FLAG(op,FLAG_REMOVED);
810	nroffreeobjects--;
811	return op;	630	return neu;
812	}	631	}
813		632
814	/*	633	/*
815	* 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
816	* 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
817	* 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.
818	*/	637	*/
819		638	void
820	void update_turn_face(object *op) {	639	update_turn_face (object *op)
		640	{
821	if(!QUERY_FLAG(op,FLAG_IS_TURNABLE)||op->arch==NULL)	641	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || !op->arch)
822	return;	642	return;
		643
823	SET_ANIMATION(op, op->direction);	644	SET_ANIMATION (op, op->direction);
824	update_object(op,UP_OBJ_FACE);	645	update_object (op, UP_OBJ_FACE);
825	}	646	}
826		647
827	/*	648	/*
828	* 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
829	* 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.
830	* 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.
831	*/	652	*/
832		653	void
833	void update_ob_speed(object *op) {	654	object::set_speed (float speed)
834	extern int arch_init;	655	{
835		656	if (flag [FLAG_FREED] && speed)
836	/* No reason putting the archetypes objects on the speed list,	657	{
837	* since they never really need to be updated.
838	*/
839
840	if (QUERY_FLAG(op, FLAG_FREED) && op->speed) {
841	LOG(llevError,"Object %s is freed but has speed.\n", op->name);	658	LOG (llevError, "Object %s is freed but has speed.\n", &name);
842	#ifdef MANY_CORES
843	abort();
844	#else
845	op->speed = 0;	659	speed = 0;
846	#endif
847	}	660	}
848	if (arch_init) {
849	return;
850	}
851	if (FABS(op->speed)>MIN_ACTIVE_SPEED) {
852	/* If already on active list, don't do anything */
853	if (op->active_next || op->active_prev || op==active_objects)
854	return;
855		661
856	/* process_events() expects us to insert the object at the beginning	662	this->speed = speed;
857	* of the list. */	663
858	op->active_next = active_objects;	664	if (has_active_speed ())
859	if (op->active_next!=NULL)	665	activate ();
860	op->active_next->active_prev = op;
861	active_objects = op;
862	}
863	else {	666	else
864	/* If not on the active list, nothing needs to be done */	667	deactivate ();
865	if (!op->active_next && !op->active_prev && op!=active_objects)
866	return;
867
868	if (op->active_prev==NULL) {
869	active_objects = op->active_next;
870	if (op->active_next!=NULL)
871	op->active_next->active_prev = NULL;
872	}
873	else {
874	op->active_prev->active_next = op->active_next;
875	if (op->active_next)
876	op->active_next->active_prev = op->active_prev;
877	}
878	op->active_next = NULL;
879	op->active_prev = NULL;
880	}
881	}	668	}
882		669
883	/* This function removes object 'op' from the list of active
884	* objects.
885	* This should only be used for style maps or other such
886	* reference maps where you don't want an object that isn't
887	* in play chewing up cpu time getting processed.
888	* The reverse of this is to call update_ob_speed, which
889	* will do the right thing based on the speed of the object.
890	*/
891	void remove_from_active_list(object *op)
892	{
893	/* If not on the active list, nothing needs to be done */
894	if (!op->active_next && !op->active_prev && op!=active_objects)
895	return;
896
897	if (op->active_prev==NULL) {
898	active_objects = op->active_next;
899	if (op->active_next!=NULL)
900	op->active_next->active_prev = NULL;
901	}
902	else {
903	op->active_prev->active_next = op->active_next;
904	if (op->active_next)
905	op->active_next->active_prev = op->active_prev;
906	}
907	op->active_next = NULL;
908	op->active_prev = NULL;
909	}
910
911	/*	670	/*
912	* update_object() updates the array which represents the map.	671	* update_object() updates the the map.
913	* It takes into account invisible objects (and represent squares covered	672	* It takes into account invisible objects (and represent squares covered
914	* 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
915	* invisible object, etc...)	674	* invisible object, etc...)
916	* 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
917	* 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
918	* updating that window, though, since update_object() is called _often_)	677	* updating that window, though, since update_object() is called _often_)
919	*	678	*
920	* 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.
921	* For example, if the only thing that has changed is the face (due to
922	* an animation), we don't need to call update_position until that actually
923	* comes into view of a player. OTOH, many other things, like addition/removal
924	* of walls or living creatures may need us to update the flags now.
925	* current action are:	680	* current action are:
926	* UP_OBJ_INSERT: op was inserted	681	* UP_OBJ_INSERT: op was inserted
927	* UP_OBJ_REMOVE: op was removed	682	* UP_OBJ_REMOVE: op was removed
928	* 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
929	* 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.
930	* UP_OBJ_FACE: only the objects face has changed.	685	* UP_OBJ_FACE: only the objects face has changed.
931	*/	686	*/
932		687	void
933	void update_object(object *op, int action) {	688	update_object (object *op, int action)
934	int update_now=0, flags;	689	{
935	MoveType move_on, move_off, move_block, move_slow;
936
937	if (op == NULL) {	690	if (op == NULL)
		691	{
938	/* this should never happen */	692	/* this should never happen */
939	LOG(llevDebug,"update_object() called for NULL object.\n");	693	LOG (llevDebug, "update_object() called for NULL object.\n");
940	return;	694	return;
941	}
942		695	}
943	if(op->env!=NULL) {	696
		697	if (op->env)
		698	{
944	/* Animation is currently handled by client, so nothing	699	/* Animation is currently handled by client, so nothing
945	* to do in this case.	700	* to do in this case.
946	*/	701	*/
947	return;	702	return;
948	}	703	}
949		704
950	/* If the map is saving, don't do anything as everything is	705	/* If the map is saving, don't do anything as everything is
951	* going to get freed anyways.	706	* going to get freed anyways.
952	*/	707	*/
953	if (!op->map || op->map->in_memory == MAP_SAVING) return;	708	if (!op->map || op->map->in_memory == MAP_SAVING)
954		709	return;
		710
955	/* make sure the object is within map boundaries */	711	/* make sure the object is within map boundaries */
956	if (op->x < 0 || op->x >= MAP_WIDTH(op->map) ||	712	if (op->x < 0 || op->x >= op->map->width || op->y < 0 || op->y >= op->map->height)
957	op->y < 0 || op->y >= MAP_HEIGHT(op->map)) {	713	{
958	LOG(llevError,"update_object() called for object out of map!\n");	714	LOG (llevError, "update_object() called for object out of map!\n");
959	#ifdef MANY_CORES	715	#ifdef MANY_CORES
960	abort();	716	abort ();
961	#endif	717	#endif
962	return;	718	return;
963	}
964		719	}
965	flags = GET_MAP_FLAGS(op->map, op->x, op->y);
966	SET_MAP_FLAGS(op->map, op->x, op->y, flags | P_NEED_UPDATE);
967	move_slow = GET_MAP_MOVE_SLOW(op->map, op->x, op->y);
968	move_on = GET_MAP_MOVE_ON(op->map, op->x, op->y);
969	move_block = GET_MAP_MOVE_BLOCK(op->map, op->x, op->y);
970	move_off = GET_MAP_MOVE_OFF(op->map, op->x, op->y);
971		720
		721	mapspace &m = op->ms ();
		722
		723	if (!(m.flags_ & P_UPTODATE))
		724	/* nop */;
972	if (action == UP_OBJ_INSERT) {	725	else if (action == UP_OBJ_INSERT)
		726	{
		727	// this is likely overkill, TODO: revisit (schmorp)
973	if (QUERY_FLAG(op, FLAG_BLOCKSVIEW) && !(flags & P_BLOCKSVIEW))	728	if ((QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(m.flags_ & P_BLOCKSVIEW))
974	update_now=1;
975
976	if (QUERY_FLAG(op, FLAG_NO_MAGIC) && !(flags & P_NO_MAGIC))	729	|| (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(m.flags_ & P_NO_MAGIC))
977	update_now=1;	730	|| (op->type == PLAYER && !(m.flags_ & P_PLAYER))
978		731	|| (op->type == SAFE_GROUND && !(m.flags_ & P_SAFE))
		732	|| (QUERY_FLAG (op, FLAG_ALIVE) && !(m.flags_ & P_IS_ALIVE))
979	if (QUERY_FLAG(op, FLAG_DAMNED) && !(flags & P_NO_CLERIC))	733	|| (QUERY_FLAG (op, FLAG_DAMNED) && !(m.flags_ & P_NO_CLERIC))
980	update_now=1;	734	|| (m.move_on | op->move_on ) != m.move_on
981
982	if (QUERY_FLAG(op, FLAG_ALIVE) && !(flags & P_IS_ALIVE))
983	update_now=1;
984
985	if ((move_on | op->move_on) != move_on) update_now=1;
986	if ((move_off | op->move_off) != move_off) update_now=1;	735	|| (m.move_off | op->move_off ) != m.move_off
		736	|| (m.move_slow | op->move_slow) != m.move_slow
987	/* 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
988	* to have move_allow right now.	738	* to have move_allow right now.
989	*/	739	*/
990	if (((move_block | op->move_block) & ~op->move_allow) != move_block)	740	|| ((m.move_block | op->move_block) & ~op->move_allow) != m.move_block
991	update_now=1;	741	|| 1) // the above is not strong enough a test to skip updating. los maybe? TODO (Schmorp)
992	if ((move_slow | op->move_slow) != move_slow) update_now=1;	742	m.flags_ = 0;
993	}	743	}
994	/* if the object is being removed, we can't make intelligent	744	/* if the object is being removed, we can't make intelligent
995	* decisions, because remove_ob can't really pass the object	745	* decisions, because remove_ob can't really pass the object
996	* that is being removed.	746	* that is being removed.
997	*/	747	*/
998	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE) {	748	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)
999	update_now=1;	749	m.flags_ = 0;
1000	} else if (action == UP_OBJ_FACE) {	750	else if (action == UP_OBJ_FACE)
1001	/* Nothing to do for that case */	751	/* Nothing to do for that case */ ;
1002	}
1003	else {	752	else
1004	LOG(llevError,"update_object called with invalid action: %d\n", action);	753	LOG (llevError, "update_object called with invalid action: %d\n", action);
1005	}
1006		754
1007	if (update_now) {
1008	SET_MAP_FLAGS(op->map, op->x, op->y, flags | P_NO_ERROR | P_NEED_UPDATE);
1009	update_position(op->map, op->x, op->y);
1010	}
1011
1012	if(op->more!=NULL)	755	if (op->more)
1013	update_object(op->more, action);	756	update_object (op->more, action);
1014	}	757	}
1015		758
		759	object::object ()
		760	{
		761	SET_FLAG (this, FLAG_REMOVED);
1016		762
1017	/*	763	expmul = 1.0;
1018	* free_object() frees everything allocated by an object, removes	764	face = blank_face;
1019	* it from the list of used objects, and puts it on the list of
1020	* free objects. The IS_FREED() flag is set in the object.
1021	* The object must have been removed by remove_ob() first for
1022	* this function to succeed.
1023	*
1024	* If free_inventory is set, free inventory as well. Else drop items in
1025	* inventory to the ground.
1026	*/
1027
1028	void free_object(object *ob) {
1029	free_object2(ob, 0);
1030	}	765	}
1031	void free_object2(object *ob, int free_inventory) {
1032	object *tmp,*op;
1033		766
1034	ob->clear ();	767	object::~object ()
		768	{
		769	unlink ();
1035		770
1036	if (!QUERY_FLAG(ob,FLAG_REMOVED)) {	771	free_key_values (this);
1037	LOG(llevDebug,"Free object called with non removed object\n");	772	}
1038	dump_object(ob);	773
1039	#ifdef MANY_CORES	774	static int object_count;
1040	abort();	775
1041	#endif	776	void object::link ()
1042	}	777	{
1043	if(QUERY_FLAG(ob,FLAG_FRIENDLY)) {	778	assert (!index);//D
1044	LOG(llevMonster,"Warning: tried to free friendly object.\n");	779	uuid = UUID::gen ();
1045	remove_friendly_object(ob);	780	count = ++object_count;
1046	}	781
1047	if(QUERY_FLAG(ob,FLAG_FREED)) {	782	refcnt_inc ();
1048	dump_object(ob);	783	objects.insert (this);
1049	LOG(llevError,"Trying to free freed object.\n%s\n",errmsg);	784	}
		785
		786	void object::unlink ()
		787	{
		788	if (!index)
1050	return;	789	return;
		790
		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)
1051	}	846	{
1052	if(ob->more!=NULL) {	847	op->flag [flag] = value;
1053	free_object2(ob->more, free_inventory);	848	op->set_flag_inv (flag, value);
1054	ob->more=NULL;
1055	}	849	}
1056	if (ob->inv) {	850	}
		851
		852	/*
		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
1057	/* Only if the space blocks everything do we not process -	867	/* Only if the space blocks everything do we not process -
1058	* if some form of movemnt is allowed, let objects	868	* if some form of movement is allowed, let objects
1059	* drop on that space.	869	* drop on that space.
1060	*/	870	*/
1061	if (free_inventory || ob->map==NULL || ob->map->in_memory!=MAP_IN_MEMORY ||	871	if (!drop_to_ground
1062	(GET_MAP_MOVE_BLOCK(ob->map, ob->x, ob->y) == MOVE_ALL))	872	|| !map
1063	{	873	|| map->in_memory != MAP_IN_MEMORY
1064	op=ob->inv;	874	|| map->nodrop
1065	while(op!=NULL) {	875	|| ms ().move_block == MOVE_ALL)
1066	tmp=op->below;
1067	remove_ob(op);
1068	free_object2(op, free_inventory);
1069	op=tmp;
1070	}
1071	}
1072	else { /* Put objects in inventory onto this space */
1073	op=ob->inv;
1074	while(op!=NULL) {
1075	tmp=op->below;
1076	remove_ob(op);
1077	if(QUERY_FLAG(op,FLAG_STARTEQUIP)||QUERY_FLAG(op,FLAG_NO_DROP) ||
1078	op->type==RUNE || op->type==TRAP || QUERY_FLAG(op,FLAG_IS_A_TEMPLATE))
1079	free_object(op);
1080	else {
1081	op->x=ob->x;
1082	op->y=ob->y;
1083	insert_ob_in_map(op,ob->map,NULL,0); /* Insert in same map as the envir */
1084	}
1085	op=tmp;
1086	}
1087	}
1088	}
1089	/* Remove object from the active list */
1090	ob->speed = 0;
1091	update_ob_speed(ob);
1092
1093	SET_FLAG(ob, FLAG_FREED);
1094	ob->count = 0;
1095
1096	/* Remove this object from the list of used objects */
1097	if(ob->prev==NULL) {
1098	objects=ob->next;
1099	if(objects!=NULL)
1100	objects->prev=NULL;
1101	}
1102	else {
1103	ob->prev->next=ob->next;
1104	if(ob->next!=NULL)
1105	ob->next->prev=ob->prev;
1106	}
1107
1108	if(ob->name!=NULL) FREE_AND_CLEAR_STR(ob->name);
1109	if(ob->name_pl!=NULL) FREE_AND_CLEAR_STR(ob->name_pl);
1110	if(ob->title!=NULL) FREE_AND_CLEAR_STR(ob->title);
1111	if(ob->race!=NULL) FREE_AND_CLEAR_STR(ob->race);
1112	if(ob->slaying!=NULL) FREE_AND_CLEAR_STR(ob->slaying);
1113	if(ob->skill!=NULL) FREE_AND_CLEAR_STR(ob->skill);
1114	if(ob->lore!=NULL) FREE_AND_CLEAR_STR(ob->lore);
1115	if(ob->msg!=NULL) FREE_AND_CLEAR_STR(ob->msg);
1116	if(ob->materialname!=NULL) FREE_AND_CLEAR_STR(ob->materialname);
1117
1118		876	{
1119	/* Why aren't events freed? */	877	while (inv)
1120	free_key_values(ob);	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;
1121		888
1122	#if 0 /* MEMORY_DEBUG*/	889	if (op->flag [FLAG_STARTEQUIP]
1123	/* This is a nice idea. Unfortunately, a lot of the code in crossfire	890	|| op->flag [FLAG_NO_DROP]
1124	* presumes the freed_object will stick around for at least a little	891	|| op->type == RUNE
1125	* bit	892	|| op->type == TRAP
1126	*/	893	|| op->flag [FLAG_IS_A_TEMPLATE]
1127	/* this is necessary so that memory debugging programs will	894	|| op->flag [FLAG_DESTROY_ON_DEATH])
1128	* be able to accurately report source of malloc. If we recycle	895	op->destroy ();
1129	* objects, then some other area may be doing the get_object	896	else
1130	* and not freeing it, but the original one that malloc'd the	897	map->insert (op, x, y);
1131	* object will get the blame.	898	}
1132	*/	899	}
1133	free(ob);
1134	#else
1135
1136	/* Now link it with the free_objects list: */
1137	ob->prev=NULL;
1138	ob->next=free_objects;
1139	if(free_objects!=NULL)
1140	free_objects->prev=ob;
1141	free_objects=ob;
1142	nroffreeobjects++;
1143	#endif
1144	}	900	}
1145		901
1146	/*	902	object *object::create ()
1147	* count_free() returns the number of objects on the list of free objects.	903	{
1148	*/
1149
1150	int count_free(void) {
1151	int i=0;
1152	object *tmp=free_objects;	904	object *op = new object;
1153	while(tmp!=NULL)	905	op->link ();
1154	tmp=tmp->next, i++;
1155	return i;	906	return op;
1156	}	907	}
1157		908
1158	/*	909	void
1159	* count_used() returns the number of objects on the list of used objects.	910	object::do_destroy ()
1160	*/	911	{
		912	attachable::do_destroy ();
1161		913
1162	int count_used(void) {	914	if (flag [FLAG_IS_LINKED])
1163	int i=0;	915	remove_button_link (this);
1164	object *tmp=objects;	916
1165	while(tmp!=NULL)	917	if (flag [FLAG_FRIENDLY])
1166	tmp=tmp->next, i++;	918	remove_friendly_object (this);
		919
		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)
		935	{
		936	freed_map = new maptile;
		937
		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;
		946	}
		947
		948	map = freed_map;
		949	x = 1;
		950	y = 1;
		951	}
		952
		953	if (more)
		954	{
		955	more->destroy ();
		956	more = 0;
		957	}
		958
		959	head = 0;
		960
		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	}
		967
		968	void
		969	object::destroy (bool destroy_inventory)
		970	{
		971	if (destroyed ())
1167	return i;	972	return;
1168	}
1169		973
1170	/*	974	if (destroy_inventory)
1171	* count_active() returns the number of objects on the list of active objects.	975	destroy_inv (false);
1172	*/
1173		976
1174	int count_active(void) {	977	if (is_head ())
1175	int i=0;	978	if (sound_destroy)
1176	object *tmp=active_objects;	979	play_sound (sound_destroy);
1177	while(tmp!=NULL)	980	else if (flag [FLAG_MONSTER])
1178	tmp=tmp->active_next, i++;	981	play_sound (sound_find ("monster_destroy")); // quick hack, too lazy to create a generic mechanism
1179	return i;	982
		983	attachable::destroy ();
1180	}	984	}
1181		985
1182	/*	986	/*
1183	* sub_weight() recursively (outwards) subtracts a number from the	987	* sub_weight() recursively (outwards) subtracts a number from the
1184	* 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)).
1185	*/	989	*/
1186		990	void
1187	void sub_weight (object *op, signed long weight) {	991	sub_weight (object *op, signed long weight)
		992	{
1188	while (op != NULL) {	993	while (op != NULL)
		994	{
1189	if (op->type == CONTAINER) {	995	if (op->type == CONTAINER)
1190	weight=(signed long)(weight*(100-op->stats.Str)/100);	996	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1191	}	997
1192	op->carrying-=weight;	998	op->carrying -= weight;
1193	op = op->env;	999	op = op->env;
1194	}	1000	}
1195	}	1001	}
1196		1002
1197	/* remove_ob(op):	1003	/* op->remove ():
1198	* 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
1199	* 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
1200	* object will have no environment. If the object previously had an	1006	* object will have no environment. If the object previously had an
1201	* environment, the x and y coordinates will be updated to	1007	* environment, the x and y coordinates will be updated to
1202	* the previous environment.	1008	* the previous environment.
1203	* Beware: This function is called from the editor as well!
1204	*/	1009	*/
1205		1010	void
1206	void remove_ob(object *op) {	1011	object::do_remove ()
		1012	{
1207	object *tmp,*last=NULL;	1013	object *tmp, *last = 0;
1208	object *otmp;	1014	object *otmp;
1209	tag_t tag;
1210	int check_walk_off;
1211	mapstruct *m;
1212	sint16 x,y;
1213
1214		1015
1215	if(QUERY_FLAG(op,FLAG_REMOVED)) {	1016	if (QUERY_FLAG (this, FLAG_REMOVED))
1216	dump_object(op);	1017	return;
1217	LOG(llevError,"Trying to remove removed object.\n%s\n",errmsg);
1218		1018
1219	/* Changed it to always dump core in this case. As has been learned
1220	* in the past, trying to recover from errors almost always
1221	* make things worse, and this is a real error here - something
1222	* that should not happen.
1223	* Yes, if this was a mission critical app, trying to do something
1224	* to recover may make sense, but that is because failure of the app
1225	* may have other disastrous problems. Cf runs out of a script
1226	* so is easily enough restarted without any real problems.
1227	* MSW 2001-07-01
1228	*/
1229	abort();
1230	}
1231	if(op->more!=NULL)
1232	remove_ob(op->more);
1233
1234	SET_FLAG(op, FLAG_REMOVED);	1019	SET_FLAG (this, FLAG_REMOVED);
		1020	INVOKE_OBJECT (REMOVE, this);
1235		1021
		1022	if (more)
		1023	more->remove ();
		1024
1236	/*	1025	/*
1237	* In this case, the object to be removed is in someones	1026	* In this case, the object to be removed is in someones
1238	* inventory.	1027	* inventory.
1239	*/	1028	*/
1240	if(op->env!=NULL) {	1029	if (env)
		1030	{
1241	if(op->nrof)	1031	if (nrof)
1242	sub_weight(op->env, op->weight*op->nrof);	1032	sub_weight (env, weight * nrof);
1243	else	1033	else
1244	sub_weight(op->env, op->weight+op->carrying);	1034	sub_weight (env, weight + carrying);
1245		1035
1246	/* 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
1247	* made to players inventory. If set, avoiding the call	1037	* made to players inventory. If set, avoiding the call
1248	* to save cpu time.	1038	* to save cpu time.
1249	*/	1039	*/
1250	if ((otmp=is_player_inv(op->env))!=NULL && otmp->contr &&	1040	if ((otmp = in_player ()) && otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1251	!QUERY_FLAG(otmp,FLAG_NO_FIX_PLAYER))	1041	otmp->update_stats ();
1252	fix_player(otmp);
1253		1042
1254	if(op->above!=NULL)	1043	if (above)
1255	op->above->below=op->below;	1044	above->below = below;
1256	else	1045	else
1257	op->env->inv=op->below;	1046	env->inv = below;
1258		1047
1259	if(op->below!=NULL)	1048	if (below)
1260	op->below->above=op->above;	1049	below->above = above;
1261		1050
1262	/* we set up values so that it could be inserted into	1051	/* we set up values so that it could be inserted into
1263	* 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
1264	* to the caller to decide what we want to do.	1053	* to the caller to decide what we want to do.
		1054	*/
		1055	x = env->x, y = env->y;
		1056	map = env->map;
		1057	above = 0, below = 0;
		1058	env = 0;
		1059	}
		1060	else if (map)
		1061	{
		1062	if (type == PLAYER)
		1063	{
		1064	// leaving a spot always closes any open container on the ground
		1065	if (container && !container->env)
		1066	// this causes spurious floorbox updates, but it ensures
		1067	// that the CLOSE event is being sent.
		1068	close_container ();
		1069
		1070	--map->players;
		1071	map->touch ();
		1072	}
		1073
		1074	map->dirty = true;
		1075	mapspace &ms = this->ms ();
		1076
		1077	/* link the object above us */
		1078	if (above)
		1079	above->below = below;
		1080	else
		1081	ms.top = below; /* we were top, set new top */
		1082
		1083	/* Relink the object below us, if there is one */
		1084	if (below)
		1085	below->above = above;
		1086	else
		1087	{
		1088	/* Nothing below, which means we need to relink map object for this space
		1089	* use translated coordinates in case some oddness with map tiling is
		1090	* evident
1265	*/	1091	*/
1266	op->x=op->env->x,op->y=op->env->y;	1092	if (GET_MAP_OB (map, x, y) != this)
1267	op->ox=op->x,op->oy=op->y;	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 ());
1268	op->map=op->env->map;	1094
1269	op->above=NULL,op->below=NULL;	1095	ms.bot = above; /* goes on above it. */
1270	op->env=NULL;	1096	}
		1097
		1098	above = 0;
		1099	below = 0;
		1100
		1101	if (map->in_memory == MAP_SAVING)
1271	return;	1102	return;
1272	}
1273		1103
1274	/* If we get here, we are removing it from a map */	1104	int check_walk_off = !flag [FLAG_NO_APPLY];
1275	if (op->map == NULL) return;
1276		1105
1277	x = op->x;	1106	if (object *pl = ms.player ())
1278	y = op->y;
1279	m = get_map_from_coord(op->map, &x, &y);
1280
1281	if (!m) {
1282	LOG(llevError,"remove_ob called when object was on map but appears to not be within valid coordinates? %s (%d,%d)\n",
1283	op->map->path, op->x, op->y);
1284	/* in old days, we used to set x and y to 0 and continue.
1285	* it seems if we get into this case, something is probablye
1286	* screwed up and should be fixed.
1287	*/
1288	abort();
1289	}
1290	if (op->map != m) {
1291	LOG(llevDebug,"remove_ob: Object not really on map it claimed to be on? %s != %s, %d,%d != %d,%d\n",
1292	op->map->path, m->path, op->x, op->y, x, y);
1293	}
1294
1295	/* Re did the following section of code - it looks like it had
1296	* lots of logic for things we no longer care about
1297	*/
1298
1299	/* link the object above us */
1300	if (op->above)
1301	op->above->below=op->below;
1302	else
1303	SET_MAP_TOP(m,x,y,op->below); /* we were top, set new top */
1304
1305	/* Relink the object below us, if there is one */
1306	if(op->below) {
1307	op->below->above=op->above;
1308	} else {
1309	/* Nothing below, which means we need to relink map object for this space
1310	* use translated coordinates in case some oddness with map tiling is
1311	* evident
1312	*/
1313	if(GET_MAP_OB(m,x,y)!=op) {
1314	dump_object(op);
1315	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", errmsg);
1316	dump_object(GET_MAP_OB(m,x,y));
1317	LOG(llevError,"%s\n",errmsg);
1318	}	1107	{
1319	SET_MAP_OB(m,x,y,op->above); /* goes on above it. */	1108	if (pl->container == this)
1320	}
1321	op->above=NULL;
1322	op->below=NULL;
1323
1324	if (op->map->in_memory == MAP_SAVING)
1325	return;
1326
1327	tag = op->count;
1328	check_walk_off = ! QUERY_FLAG (op, FLAG_NO_APPLY);
1329	for(tmp=GET_MAP_OB(m,x,y);tmp!=NULL;tmp=tmp->above) {
1330	/* No point updating the players look faces if he is the object
1331	* being removed.
1332	*/
1333
1334	if(tmp->type==PLAYER && tmp!=op) {
1335	/* If a container that the player is currently using somehow gets	1109	/* If a container that the player is currently using somehow gets
1336	* removed (most likely destroyed), update the player view	1110	* removed (most likely destroyed), update the player view
1337	* appropriately.	1111	* appropriately.
1338	*/	1112	*/
1339	if (tmp->container==op) {	1113	pl->close_container ();
1340	CLEAR_FLAG(op, FLAG_APPLIED);	1114
1341	tmp->container=NULL;	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))
		1128	{
		1129	move_apply (tmp, this, 0);
		1130
		1131	if (destroyed ())
		1132	LOG (llevError, "BUG: remove_ob(): name %s, destroyed leaving object\n", tmp->debug_desc ());
1342	}	1133	}
1343	tmp->contr->socket.update_look=1;
1344	}
1345	/* See if player moving off should effect something */
1346	if (check_walk_off && ((op->move_type & tmp->move_off) &&
1347	(op->move_type & ~tmp->move_off & ~tmp->move_block)==0)) {
1348		1134
1349	move_apply(tmp, op, NULL);
1350	if (was_destroyed (op, tag)) {
1351	LOG (llevError, "BUG: remove_ob(): name %s, archname %s destroyed "
1352	"leaving object\n", tmp->name, tmp->arch->name);
1353	}
1354	}
1355
1356	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */
1357
1358	if(tmp->above == tmp)
1359	tmp->above = NULL;
1360	last=tmp;	1135	last = tmp;
1361	}	1136	}
		1137
1362	/* last == NULL of there are no objects on this space */	1138	/* last == NULL if there are no objects on this space */
1363	if (last==NULL) {	1139	//TODO: this makes little sense, why only update the topmost object?
1364	/* set P_NEED_UPDATE, otherwise update_position will complain. In theory,	1140	if (!last)
1365	* we could preserve the flags (GET_MAP_FLAGS), but update_position figures	1141	map->at (x, y).flags_ = 0;
1366	* those out anyways, and if there are any flags set right now, they won't
1367	* be correct anyways.
1368	*/
1369	SET_MAP_FLAGS(op->map, op->x, op->y, P_NEED_UPDATE);
1370	update_position(op->map, op->x, op->y);
1371	}
1372	else	1142	else
1373	update_object(last, UP_OBJ_REMOVE);	1143	update_object (last, UP_OBJ_REMOVE);
1374		1144
1375	if(QUERY_FLAG(op,FLAG_BLOCKSVIEW)|| (op->glow_radius != 0))	1145	if (flag [FLAG_BLOCKSVIEW] || glow_radius)
1376	update_all_los(op->map, op->x, op->y);	1146	update_all_los (map, x, y);
1377		1147	}
1378	}	1148	}
1379		1149
1380	/*	1150	/*
1381	* merge_ob(op,top):	1151	* merge_ob(op,top):
1382	*	1152	*
1383	* This function goes through all objects below and including top, and	1153	* This function goes through all objects below and including top, and
1384	* merges op to the first matching object.	1154	* merges op to the first matching object.
1385	* If top is NULL, it is calculated.	1155	* If top is NULL, it is calculated.
1386	* 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
1387	*/	1157	*/
1388		1158	object *
1389	object *merge_ob(object *op, object *top) {	1159	merge_ob (object *op, object *top)
		1160	{
1390	if(!op->nrof)	1161	if (!op->nrof)
1391	return 0;	1162	return 0;
1392	if(top==NULL)	1163
		1164	if (!top)
1393	for(top=op;top!=NULL&&top->above!=NULL;top=top->above);	1165	for (top = op; top && top->above; top = top->above)
		1166	;
		1167
1394	for(;top!=NULL;top=top->below) {	1168	for (; top; top = top->below)
		1169	{
1395	if(top==op)	1170	if (top == op)
1396	continue;	1171	continue;
1397	if (CAN_MERGE(op,top))	1172
1398	{	1173	if (object::can_merge (op, top))
		1174	{
1399	top->nrof+=op->nrof;	1175	top->nrof += op->nrof;
		1176
1400	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/	1177	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/
1401	op->weight = 0; /* Don't want any adjustements now */	1178	op->weight = 0; /* Don't want any adjustements now */
1402	remove_ob(op);	1179	op->destroy ();
1403	free_object(op);
1404	return top;	1180	return top;
1405	}	1181	}
1406	}	1182	}
		1183
1407	return NULL;	1184	return 0;
1408	}	1185	}
1409		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
1410	/*	1210	/*
1411	* 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
1412	* job preparing multi-part monsters	1212	* job preparing multi-part monsters.
1413	*/	1213	*/
		1214	object *
1414	object *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)
1415	object* tmp;	1216	{
1416	if (op->head)	1217	for (object *tmp = op->head_ (); tmp; tmp = tmp->more)
1417	op=op->head;	1218	{
1418	for (tmp=op;tmp;tmp=tmp->more){
1419	tmp->x=x+tmp->arch->clone.x;	1219	tmp->x = x + tmp->arch->x;
1420	tmp->y=y+tmp->arch->clone.y;	1220	tmp->y = y + tmp->arch->y;
1421	}	1221	}
		1222
1422	return insert_ob_in_map (op, m, originator, flag);	1223	return insert_ob_in_map (op, m, originator, flag);
1423	}	1224	}
1424		1225
1425	/*	1226	/*
1426	* insert_ob_in_map (op, map, originator, flag):	1227	* insert_ob_in_map (op, map, originator, flag):
1427	* This function inserts the object in the two-way linked list	1228	* This function inserts the object in the two-way linked list
…		…
1440	* Return value:	1241	* Return value:
1441	* new object if 'op' was merged with other object	1242	* new object if 'op' was merged with other object
1442	* NULL if 'op' was destroyed	1243	* NULL if 'op' was destroyed
1443	* just 'op' otherwise	1244	* just 'op' otherwise
1444	*/	1245	*/
1445		1246	object *
1446	object *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)
1447	{	1248	{
		1249	assert (!op->flag [FLAG_FREED]);
		1250
1448	object *tmp, *top, *floor=NULL;	1251	object *top, *floor = NULL;
1449	sint16 x,y;
1450		1252
1451	if (QUERY_FLAG (op, FLAG_FREED)) {	1253	op->remove ();
1452	LOG (llevError, "Trying to insert freed object!\n");
1453	return NULL;
1454	}
1455	if(m==NULL) {
1456	dump_object(op);
1457	LOG(llevError,"Trying to insert in null-map!\n%s\n",errmsg);
1458	return op;
1459	}
1460	if(out_of_map(m,op->x,op->y)) {
1461	dump_object(op);
1462	LOG(llevError,"Trying to insert object outside the map.\n%s\n", errmsg);
1463	#ifdef MANY_CORES
1464	/* Better to catch this here, as otherwise the next use of this object
1465	* is likely to cause a crash. Better to find out where it is getting
1466	* improperly inserted.
1467	*/
1468	abort();
1469	#endif
1470	return op;
1471	}
1472	if(!QUERY_FLAG(op,FLAG_REMOVED)) {
1473	dump_object(op);
1474	LOG(llevError,"Trying to insert (map) inserted object.\n%s\n", errmsg);
1475	return op;
1476	}
1477	if(op->more!=NULL) {
1478	/* The part may be on a different map. */
1479		1254
1480	object *more = op->more;
1481
1482	/* We really need the caller to normalize coordinates - if
1483	* we set the map, that doesn't work if the location is within
1484	* a map and this is straddling an edge. So only if coordinate
1485	* is clear wrong do we normalize it.
1486	*/
1487	if (OUT_OF_REAL_MAP(more->map, more->x, more->y)) {
1488	/* Debugging information so you can see the last coordinates this object had */
1489	more->ox = more->x;
1490	more->oy = more->y;
1491	more->map = get_map_from_coord(m, &more->x, &more->y);
1492	} else if (!more->map) {
1493	/* For backwards compatibility - when not dealing with tiled maps,
1494	* more->map should always point to the parent.
1495	*/
1496	more->map = m;
1497	}
1498
1499	if (insert_ob_in_map(more, more->map, originator, flag) == NULL) {
1500	if ( ! op->head)
1501	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");
1502	return NULL;
1503	}
1504	}
1505	CLEAR_FLAG(op,FLAG_REMOVED);
1506
1507	/* Debugging information so you can see the last coordinates this object had */
1508	op->ox=op->x;
1509	op->oy=op->y;
1510
1511	/* Ideally, the caller figures this out. However, it complicates a lot	1255	/* Ideally, the caller figures this out. However, it complicates a lot
1512	* 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
1513	* need extra work	1257	* need extra work
1514	*/	1258	*/
1515	op->map=get_map_from_coord(m, &op->x, &op->y);	1259	if (!xy_normalise (m, op->x, op->y))
1516	x = op->x;	1260	{
1517	y = op->y;	1261	op->destroy ();
		1262	return 0;
		1263	}
1518		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 ();
		1273
1519	/* this has to be done after we translate the coordinates.	1274	/* this has to be done after we translate the coordinates.
1520	*/	1275	*/
1521	if(op->nrof && !(flag & INS_NO_MERGE)) {	1276	if (op->nrof && !(flag & INS_NO_MERGE))
1522	for(tmp=GET_MAP_OB(op->map,x,y);tmp!=NULL;tmp=tmp->above)	1277	for (object *tmp = ms.bot; tmp; tmp = tmp->above)
1523	if (CAN_MERGE(op,tmp)) {	1278	if (object::can_merge (op, tmp))
		1279	{
1524	op->nrof+=tmp->nrof;	1280	op->nrof += tmp->nrof;
1525	remove_ob(tmp);	1281	tmp->destroy ();
1526	free_object(tmp);	1282	}
		1283
		1284	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */
		1285	CLEAR_FLAG (op, FLAG_INV_LOCKED);
		1286
		1287	if (!QUERY_FLAG (op, FLAG_ALIVE))
		1288	CLEAR_FLAG (op, FLAG_NO_STEAL);
		1289
		1290	if (flag & INS_BELOW_ORIGINATOR)
		1291	{
		1292	if (originator->map != op->map || originator->x != op->x || originator->y != op->y)
		1293	{
		1294	LOG (llevError, "insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");
		1295	abort ();
		1296	}
		1297
		1298	op->above = originator;
		1299	op->below = originator->below;
		1300
		1301	if (op->below)
		1302	op->below->above = op;
		1303	else
		1304	ms.bot = op;
		1305
		1306	/* since *below* originator, no need to update top */
		1307	originator->below = op;
		1308	}
		1309	else
		1310	{
		1311	top = ms.bot;
		1312
		1313	/* If there are other objects, then */
		1314	if (top)
		1315	{
		1316	object *last = 0;
		1317
		1318	/*
		1319	* If there are multiple objects on this space, we do some trickier handling.
		1320	* We've already dealt with merging if appropriate.
		1321	* Generally, we want to put the new object on top. But if
		1322	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last
		1323	* floor, we want to insert above that and no further.
		1324	* Also, if there are spell objects on this space, we stop processing
		1325	* once we get to them. This reduces the need to traverse over all of
		1326	* them when adding another one - this saves quite a bit of cpu time
		1327	* when lots of spells are cast in one area. Currently, it is presumed
		1328	* that flying non pickable objects are spell objects.
		1329	*/
		1330	for (top = ms.bot; top; top = top->above)
		1331	{
		1332	if (QUERY_FLAG (top, FLAG_IS_FLOOR) || QUERY_FLAG (top, FLAG_OVERLAY_FLOOR))
		1333	floor = top;
		1334
		1335	if (QUERY_FLAG (top, FLAG_NO_PICK) && (top->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (top, FLAG_IS_FLOOR))
		1336	{
		1337	/* We insert above top, so we want this object below this */
		1338	top = top->below;
		1339	break;
		1340	}
		1341
		1342	last = top;
1527	}	1343	}
1528	}
1529		1344
1530	CLEAR_FLAG(op,FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */	1345	/* Don't want top to be NULL, so set it to the last valid object */
1531	CLEAR_FLAG(op, FLAG_INV_LOCKED);	1346	top = last;
1532	if (!QUERY_FLAG(op, FLAG_ALIVE))
1533	CLEAR_FLAG(op, FLAG_NO_STEAL);
1534		1347
1535	if (flag & INS_BELOW_ORIGINATOR) {	1348	/* We let update_position deal with figuring out what the space
1536	if (originator->map != op->map || originator->x != op->x ||	1349	* looks like instead of lots of conditions here.
1537	originator->y != op->y) {	1350	* makes things faster, and effectively the same result.
1538	LOG(llevError,"insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");
1539	abort();
1540	}
1541	op->above = originator;
1542	op->below = originator->below;
1543	if (op->below) op->below->above = op;
1544	else SET_MAP_OB(op->map, op->x, op->y, op);
1545	/* since *below* originator, no need to update top */
1546	originator->below = op;
1547	} else {
1548	/* If there are other objects, then */
1549	if((! (flag & INS_MAP_LOAD)) && ((top=GET_MAP_OB(op->map,op->x,op->y))!=NULL)) {
1550	object *last=NULL;
1551	/*	1351	*/
1552	* If there are multiple objects on this space, we do some trickier handling.	1352
1553	* We've already dealt with merging if appropriate.	1353	/* Have object 'fall below' other objects that block view.
1554	* Generally, we want to put the new object on top. But if	1354	* Unless those objects are exits.
1555	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last	1355	* If INS_ON_TOP is used, don't do this processing
1556	* floor, we want to insert above that and no further.	1356	* Need to find the object that in fact blocks view, otherwise
1557	* Also, if there are spell objects on this space, we stop processing	1357	* stacking is a bit odd.
1558	* once we get to them. This reduces the need to traverse over all of	1358	*/
1559	* them when adding another one - this saves quite a bit of cpu time	1359	if (!(flag & INS_ON_TOP)
1560	* when lots of spells are cast in one area. Currently, it is presumed	1360	&& ms.flags () & P_BLOCKSVIEW
1561	* that flying non pickable objects are spell objects.	1361	&& (op->face && !faces [op->face].visibility))
		1362	{
		1363	for (last = top; last != floor; last = last->below)
		1364	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))
		1365	break;
		1366
		1367	/* Check to see if we found the object that blocks view,
		1368	* and make sure we have a below pointer for it so that
		1369	* we can get inserted below this one, which requires we
		1370	* set top to the object below us.
1562	*/	1371	*/
1563		1372	if (last && last->below && last != floor)
1564	while (top != NULL) {
1565	if (QUERY_FLAG(top, FLAG_IS_FLOOR) ||
1566	QUERY_FLAG(top, FLAG_OVERLAY_FLOOR)) floor = top;
1567	if (QUERY_FLAG(top, FLAG_NO_PICK)
1568	&& (top->move_type & (MOVE_FLY_LOW |MOVE_FLY_HIGH))
1569	&& !QUERY_FLAG(top, FLAG_IS_FLOOR))
1570	{
1571	/* We insert above top, so we want this object below this */
1572	top=top->below;
1573	break;
1574	}
1575	last = top;
1576	top = top->above;	1373	top = last->below;
1577	}	1374	}
1578	/* Don't want top to be NULL, so set it to the last valid object */
1579	top = last;
1580
1581	/* We let update_position deal with figuring out what the space
1582	* looks like instead of lots of conditions here.
1583	* makes things faster, and effectively the same result.
1584	*/
1585
1586	/* Have object 'fall below' other objects that block view.
1587	* Unless those objects are exits, type 66
1588	* If INS_ON_TOP is used, don't do this processing
1589	* Need to find the object that in fact blocks view, otherwise
1590	* stacking is a bit odd.
1591	*/
1592	if (!(flag & INS_ON_TOP) &&
1593	(get_map_flags(op->map, NULL, op->x, op->y, NULL, NULL) & P_BLOCKSVIEW) &&
1594	(op->face && !op->face->visibility)) {
1595	for (last=top; last != floor; last=last->below)
1596	if (QUERY_FLAG(last, FLAG_BLOCKSVIEW)&&(last->type != EXIT)) break;
1597	/* Check to see if we found the object that blocks view,
1598	* and make sure we have a below pointer for it so that
1599	* we can get inserted below this one, which requires we
1600	* set top to the object below us.
1601	*/
1602	if (last && last->below && last != floor) top=last->below;
1603	}
1604	} /* If objects on this space */	1375	} /* If objects on this space */
1605	if (flag & INS_MAP_LOAD)	1376
1606	top = GET_MAP_TOP(op->map,op->x,op->y);
1607	if (flag & INS_ABOVE_FLOOR_ONLY) top = floor;	1377	if (flag & INS_ABOVE_FLOOR_ONLY)
		1378	top = floor;
1608		1379
1609	/* 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.
1610	*/	1381	*/
1611		1382
1612	/* First object on this space */	1383	/* First object on this space */
1613	if (!top) {	1384	if (!top)
1614	op->above = GET_MAP_OB(op->map, op->x, op->y);	1385	{
		1386	op->above = ms.bot;
		1387
		1388	if (op->above)
1615	if (op->above) op->above->below = op;	1389	op->above->below = op;
		1390
1616	op->below = NULL;	1391	op->below = 0;
1617	SET_MAP_OB(op->map, op->x, op->y, op);	1392	ms.bot = op;
		1393	}
		1394	else
1618	} else { /* get inserted into the stack above top */	1395	{ /* get inserted into the stack above top */
1619	op->above = top->above;	1396	op->above = top->above;
		1397
		1398	if (op->above)
1620	if (op->above) op->above->below = op;	1399	op->above->below = op;
		1400
1621	op->below = top;	1401	op->below = top;
1622	top->above = op;	1402	top->above = op;
1623	}	1403	}
		1404
1624	if (op->above==NULL)	1405	if (!op->above)
1625	SET_MAP_TOP(op->map,op->x, op->y, op);	1406	ms.top = op;
1626	} /* else not INS_BELOW_ORIGINATOR */	1407	} /* else not INS_BELOW_ORIGINATOR */
1627		1408
1628	if(op->type==PLAYER)	1409	if (op->type == PLAYER)
		1410	{
1629	op->contr->do_los=1;	1411	op->contr->do_los = 1;
1630		1412	++op->map->players;
1631	/* If we have a floor, we know the player, if any, will be above	1413	op->map->touch ();
1632	* it, so save a few ticks and start from there.
1633	*/
1634	if (!(flag & INS_MAP_LOAD))
1635	for(tmp=floor?floor:GET_MAP_OB(op->map,op->x,op->y);tmp!=NULL;tmp=tmp->above) {
1636	if (tmp->type == PLAYER)
1637	tmp->contr->socket.update_look=1;
1638	}	1414	}
1639		1415
		1416	op->map->dirty = true;
		1417
		1418	if (object *pl = ms.player ())
		1419	pl->contr->ns->floorbox_update ();
		1420
1640	/* If this object glows, it may affect lighting conditions that are	1421	/* If this object glows, it may affect lighting conditions that are
1641	* 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
1642	* 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
1643	* on the map will get recalculated. The players could very well	1424	* on the map will get recalculated. The players could very well
1644	* 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 -
1645	* this should get redone to only look for players within range,	1426	* this should get redone to only look for players within range,
1646	* or just updating the P_NEED_UPDATE for spaces within this area	1427	* or just updating the P_UPTODATE for spaces within this area
1647	* of effect may be sufficient.	1428	* of effect may be sufficient.
1648	*/	1429	*/
1649	if(MAP_DARKNESS(op->map) && (op->glow_radius != 0))	1430	if (op->map->darkness && (op->glow_radius != 0))
1650	update_all_los(op->map, op->x, op->y);	1431	update_all_los (op->map, op->x, op->y);
1651		1432
1652
1653	/* updates flags (blocked, alive, no magic, etc) for this map space */	1433	/* updates flags (blocked, alive, no magic, etc) for this map space */
1654	update_object(op,UP_OBJ_INSERT);	1434	update_object (op, UP_OBJ_INSERT);
1655		1435
		1436	INVOKE_OBJECT (INSERT, op);
1656		1437
1657	/* 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,
1658	* we want to have update_look set above before calling this.	1439	* we want to have floorbox_update called before calling this.
1659	*	1440	*
1660	* check_move_on() must be after this because code called from	1441	* check_move_on() must be after this because code called from
1661	* check_move_on() depends on correct map flags (so functions like	1442	* check_move_on() depends on correct map flags (so functions like
1662	* blocked() and wall() work properly), and these flags are updated by	1443	* blocked() and wall() work properly), and these flags are updated by
1663	* update_object().	1444	* update_object().
1664	*/	1445	*/
1665		1446
1666	/* 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 */
1667
1668	if (!(flag & INS_NO_WALK_ON) && !op->head) {	1448	if (!(flag & INS_NO_WALK_ON) && op->head_ () == op)
		1449	{
1669	if (check_move_on(op, originator))	1450	if (check_move_on (op, originator))
1670	return NULL;	1451	return 0;
1671		1452
1672	/* 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
1673	* walk on's.	1454	* walk on's.
1674	*/	1455	*/
1675	for (tmp=op->more; tmp!=NULL; tmp=tmp->more)	1456	for (object *tmp = op->more; tmp; tmp = tmp->more)
1676	if (check_move_on (tmp, originator))	1457	if (check_move_on (tmp, originator))
1677	return NULL;	1458	return 0;
1678	}	1459	}
		1460
1679	return op;	1461	return op;
1680	}	1462	}
1681		1463
1682	/* this function inserts an object in the map, but if it	1464	/* this function inserts an object in the map, but if it
1683	* 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.
1684	* 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.
1685	*/	1467	*/
		1468	void
1686	void replace_insert_ob_in_map(const char *arch_string, object *op) {	1469	replace_insert_ob_in_map (const char *arch_string, object *op)
1687	object *tmp;	1470	{
1688	object *tmp1;	1471	object *tmp, *tmp1;
1689		1472
1690	/* first search for itself and remove any old instances */	1473	/* first search for itself and remove any old instances */
1691		1474
1692	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)
1693	if(!strcmp(tmp->arch->name,arch_string)) /* same archetype */ {	1476	if (!strcmp (tmp->arch->archname, arch_string)) /* same archetype */
1694	remove_ob(tmp);	1477	tmp->destroy ();
1695	free_object(tmp);
1696	}
1697	}
1698		1478
1699	tmp1=arch_to_object(find_archetype(arch_string));	1479	tmp1 = arch_to_object (archetype::find (arch_string));
1700		1480
1701		1481	tmp1->x = op->x;
1702	tmp1->x = op->x; tmp1->y = op->y;	1482	tmp1->y = op->y;
1703	insert_ob_in_map(tmp1,op->map,op,0);	1483	insert_ob_in_map (tmp1, op->map, op, 0);
1704	}	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);
		1490	}
1705		1491
1706	/*	1492	/*
1707	* 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
1708	* is returned contains nr objects, and the remaining parts contains	1494	* is returned contains nr objects, and the remaining parts contains
1709	* 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).
1710	* On failure, NULL is returned, and the reason put into the	1496	* On failure, NULL is returned, and the reason put into the
1711	* global static errmsg array.	1497	* global static errmsg array.
1712	*/	1498	*/
1713		1499	object *
1714	object *get_split_ob(object *orig_ob, uint32 nr) {	1500	get_split_ob (object *orig_ob, uint32 nr)
		1501	{
1715	object *newob;	1502	object *newob;
1716	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);	1503	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);
1717		1504
1718	if(orig_ob->nrof<nr) {	1505	if (orig_ob->nrof < nr)
1719	sprintf(errmsg,"There are only %d %ss.",	1506	{
1720	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);
1721	return NULL;	1508	return NULL;
1722	}	1509	}
		1510
1723	newob = object_create_clone(orig_ob);	1511	newob = object_create_clone (orig_ob);
		1512
1724	if((orig_ob->nrof-=nr)<1) {	1513	if ((orig_ob->nrof -= nr) < 1)
1725	if ( ! is_removed)	1514	orig_ob->destroy (1);
1726	remove_ob(orig_ob);
1727	free_object2(orig_ob, 1);
1728	}
1729	else if ( ! is_removed) {	1515	else if (!is_removed)
		1516	{
1730	if(orig_ob->env!=NULL)	1517	if (orig_ob->env != NULL)
1731	sub_weight (orig_ob->env,orig_ob->weight*nr);	1518	sub_weight (orig_ob->env, orig_ob->weight * nr);
1732	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)
		1520	{
1733	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.");
1734	LOG(llevDebug,
1735	"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");
1736	return NULL;	1523	return NULL;
1737	}	1524	}
1738	}	1525	}
		1526
1739	newob->nrof=nr;	1527	newob->nrof = nr;
1740		1528
1741	return newob;	1529	return newob;
1742	}	1530	}
1743		1531
1744	/*	1532	/*
1745	* decrease_ob_nr(object, number) decreases a specified number from	1533	* decrease_ob_nr(object, number) decreases a specified number from
1746	* 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
1747	* is subsequently removed and freed.	1535	* is subsequently removed and freed.
1748	*	1536	*
1749	* 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
1750	*/	1538	*/
1751		1539	object *
1752	object *decrease_ob_nr (object *op, uint32 i)	1540	decrease_ob_nr (object *op, uint32 i)
1753	{	1541	{
1754	object *tmp;	1542	object *tmp;
1755	player *pl;
1756		1543
1757	if (i == 0) /* objects with op->nrof require this check */	1544	if (i == 0) /* objects with op->nrof require this check */
1758	return op;	1545	return op;
1759		1546
1760	if (i > op->nrof)	1547	if (i > op->nrof)
1761	i = op->nrof;	1548	i = op->nrof;
1762		1549
1763	if (QUERY_FLAG (op, FLAG_REMOVED))	1550	if (QUERY_FLAG (op, FLAG_REMOVED))
		1551	op->nrof -= i;
		1552	else if (op->env)
		1553	{
		1554	/* is this object in the players inventory, or sub container
		1555	* therein?
		1556	*/
		1557	tmp = op->in_player ();
		1558	/* nope. Is this a container the player has opened?
		1559	* If so, set tmp to that player.
		1560	* IMO, searching through all the players will mostly
		1561	* likely be quicker than following op->env to the map,
		1562	* and then searching the map for a player.
		1563	*/
		1564	if (!tmp)
		1565	for_all_players (pl)
		1566	if (pl->ob->container == op->env)
		1567	{
		1568	tmp = pl->ob;
		1569	break;
		1570	}
		1571
		1572	if (i < op->nrof)
		1573	{
		1574	sub_weight (op->env, op->weight * i);
		1575	op->nrof -= i;
		1576	if (tmp)
		1577	esrv_send_item (tmp, op);
		1578	}
		1579	else
		1580	{
		1581	op->remove ();
		1582	op->nrof = 0;
		1583	if (tmp)
		1584	esrv_del_item (tmp->contr, op->count);
		1585	}
1764	{	1586	}
		1587	else
		1588	{
		1589	object *above = op->above;
		1590
		1591	if (i < op->nrof)
1765	op->nrof -= i;	1592	op->nrof -= i;
1766	}	1593	else
1767	else if (op->env != NULL)
1768	{
1769	/* is this object in the players inventory, or sub container
1770	* therein?
1771	*/
1772	tmp = is_player_inv (op->env);
1773	/* nope. Is this a container the player has opened?
1774	* If so, set tmp to that player.
1775	* IMO, searching through all the players will mostly
1776	* likely be quicker than following op->env to the map,
1777	* and then searching the map for a player.
1778	*/
1779	if (!tmp) {
1780	for (pl=first_player; pl; pl=pl->next)
1781	if (pl->ob->container == op->env) break;
1782	if (pl) tmp=pl->ob;
1783	else tmp=NULL;
1784	}	1594	{
1785
1786	if (i < op->nrof) {
1787	sub_weight (op->env, op->weight * i);
1788	op->nrof -= i;
1789	if (tmp) {
1790	esrv_send_item(tmp, op);
1791	}
1792	} else {
1793	remove_ob (op);	1595	op->remove ();
1794	op->nrof = 0;	1596	op->nrof = 0;
1795	if (tmp) {
1796	esrv_del_item(tmp->contr, op->count);
1797	}	1597	}
1798	}
1799	}
1800	else
1801	{
1802	object *above = op->above;
1803		1598
1804	if (i < op->nrof) {
1805	op->nrof -= i;
1806	} else {
1807	remove_ob (op);
1808	op->nrof = 0;
1809	}
1810	/* Since we just removed op, op->above is null */	1599	/* Since we just removed op, op->above is null */
1811	for (tmp = above; tmp != NULL; tmp = tmp->above)	1600	for (tmp = above; tmp; tmp = tmp->above)
1812	if (tmp->type == PLAYER) {	1601	if (tmp->type == PLAYER)
		1602	{
1813	if (op->nrof)	1603	if (op->nrof)
1814	esrv_send_item(tmp, op);	1604	esrv_send_item (tmp, op);
1815	else	1605	else
1816	esrv_del_item(tmp->contr, op->count);	1606	esrv_del_item (tmp->contr, op->count);
1817	}	1607	}
1818	}	1608	}
1819		1609
1820	if (op->nrof) {	1610	if (op->nrof)
1821	return op;	1611	return op;
1822	} else {	1612	else
1823	free_object (op);	1613	{
		1614	op->destroy ();
1824	return NULL;	1615	return 0;
1825	}	1616	}
1826	}	1617	}
1827		1618
1828	/*	1619	/*
1829	* add_weight(object, weight) adds the specified weight to an object,	1620	* add_weight(object, weight) adds the specified weight to an object,
1830	* and also updates how much the environment(s) is/are carrying.	1621	* and also updates how much the environment(s) is/are carrying.
1831	*/	1622	*/
1832		1623	void
1833	void add_weight (object *op, signed long weight) {	1624	add_weight (object *op, signed long weight)
		1625	{
1834	while (op!=NULL) {	1626	while (op != NULL)
		1627	{
1835	if (op->type == CONTAINER) {	1628	if (op->type == CONTAINER)
1836	weight=(signed long)(weight*(100-op->stats.Str)/100);	1629	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1837	}	1630
1838	op->carrying+=weight;	1631	op->carrying += weight;
1839	op=op->env;	1632	op = op->env;
1840	}	1633	}
1841	}	1634	}
1842		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
1843	/*	1656	/*
1844	* insert_ob_in_ob(op,environment):	1657	* env->insert (op)
1845	* This function inserts the object op in the linked list	1658	* This function inserts the object op in the linked list
1846	* inside the object environment.	1659	* inside the object environment.
1847	*	1660	*
1848	* Eneq(@csd.uu.se): Altered insert_ob_in_ob to make things picked up enter
1849	* the inventory at the last position or next to other objects of the same
1850	* type.
1851	* Frank: Now sorted by type, archetype and magic!
1852	*
1853	* 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
1854	* be != op, if items are merged. -Tero	1662	* be != op, if items are merged. -Tero
1855	*/	1663	*/
1856		1664	object *
1857	object *insert_ob_in_ob(object *op,object *where) {	1665	object::insert (object *op)
1858	object *tmp, *otmp;	1666	{
1859
1860	if(!QUERY_FLAG(op,FLAG_REMOVED)) {	1667	if (!QUERY_FLAG (op, FLAG_REMOVED))
1861	dump_object(op);	1668	op->remove ();
1862	LOG(llevError,"Trying to insert (ob) inserted object.\n%s\n", errmsg);	1669
1863	return op;
1864	}
1865	if(where==NULL) {
1866	dump_object(op);
1867	LOG(llevError,"Trying to put object in NULL.\n%s\n", errmsg);
1868	return op;
1869	}
1870	if (where->head) {
1871	LOG(llevDebug,
1872	"Warning: Tried to insert object wrong part of multipart object.\n");
1873	where = where->head;
1874	}
1875	if (op->more) {	1670	if (op->more)
		1671	{
1876	LOG(llevError, "Tried to insert multipart object %s (%d)\n",	1672	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);
1877	op->name, op->count);
1878	return op;	1673	return op;
1879	}	1674	}
		1675
1880	CLEAR_FLAG(op, FLAG_OBJ_ORIGINAL);	1676	CLEAR_FLAG (op, FLAG_OBJ_ORIGINAL);
1881	CLEAR_FLAG(op, FLAG_REMOVED);	1677	CLEAR_FLAG (op, FLAG_REMOVED);
		1678
1882	if(op->nrof) {	1679	if (op->nrof)
1883	for(tmp=where->inv;tmp!=NULL;tmp=tmp->below)	1680	{
1884	if ( CAN_MERGE(tmp,op) ) {	1681	for (object *tmp = inv; tmp; tmp = tmp->below)
		1682	if (object::can_merge (tmp, op))
		1683	{
1885	/* return the original object and remove inserted object	1684	/* return the original object and remove inserted object
1886	(client needs the original object) */	1685	(client needs the original object) */
1887	tmp->nrof += op->nrof;	1686	tmp->nrof += op->nrof;
1888	/* Weight handling gets pretty funky. Since we are adding to	1687	/* Weight handling gets pretty funky. Since we are adding to
1889	* tmp->nrof, we need to increase the weight.	1688	* tmp->nrof, we need to increase the weight.
1890	*/	1689	*/
1891	add_weight (where, op->weight*op->nrof);	1690	add_weight (this, op->weight * op->nrof);
1892	SET_FLAG(op, FLAG_REMOVED);	1691	SET_FLAG (op, FLAG_REMOVED);
1893	free_object(op); /* free the inserted object */	1692	op->destroy (); /* free the inserted object */
1894	op = tmp;	1693	op = tmp;
1895	remove_ob (op); /* and fix old object's links */	1694	op->remove (); /* and fix old object's links */
1896	CLEAR_FLAG(op, FLAG_REMOVED);	1695	CLEAR_FLAG (op, FLAG_REMOVED);
1897	break;	1696	break;
1898	}	1697	}
1899		1698
1900	/* I assume combined objects have no inventory	1699	/* I assume combined objects have no inventory
1901	* We add the weight - this object could have just been removed	1700	* We add the weight - this object could have just been removed
1902	* (if it was possible to merge). calling remove_ob will subtract	1701	* (if it was possible to merge). calling remove_ob will subtract
1903	* 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
1904	* the linking below	1703	* the linking below
1905	*/	1704	*/
1906	add_weight (where, op->weight*op->nrof);	1705	add_weight (this, op->weight * op->nrof);
		1706	}
1907	} else	1707	else
1908	add_weight (where, (op->weight+op->carrying));	1708	add_weight (this, (op->weight + op->carrying));
1909		1709
1910	otmp=is_player_inv(where);	1710	if (object *otmp = this->in_player ())
1911	if (otmp&&otmp->contr!=NULL) {
1912	if (!QUERY_FLAG(otmp,FLAG_NO_FIX_PLAYER))	1711	if (otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1913	fix_player(otmp);	1712	otmp->update_stats ();
1914	}
1915		1713
1916	op->map=NULL;	1714	op->owner = 0; // its his/hers now. period.
1917	op->env=where;	1715	op->map = 0;
		1716	op->env = this;
1918	op->above=NULL;	1717	op->above = 0;
1919	op->below=NULL;	1718	op->below = 0;
1920	op->x=0,op->y=0;	1719	op->x = op->y = 0;
1921	op->ox=0,op->oy=0;
1922		1720
1923	/* 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 */
1924	if((op->glow_radius!=0)&&where->map)	1722	if (op->glow_radius && map)
1925	{	1723	{
1926	#ifdef DEBUG_LIGHTS	1724	#ifdef DEBUG_LIGHTS
1927	LOG(llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n",	1725	LOG (llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n", op->name);
1928	op->name);
1929	#endif /* DEBUG_LIGHTS */	1726	#endif /* DEBUG_LIGHTS */
1930	if (MAP_DARKNESS(where->map)) update_all_los(where->map, where->x, where->y);	1727	if (map->darkness)
		1728	update_all_los (map, x, y);
1931	}	1729	}
1932		1730
1933	/* 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.
1934	* It sure simplifies this function...	1732	* It sure simplifies this function...
1935	*/	1733	*/
1936	if (where->inv==NULL)	1734	if (!inv)
1937	where->inv=op;	1735	inv = op;
1938	else {	1736	else
		1737	{
1939	op->below = where->inv;	1738	op->below = inv;
1940	op->below->above = op;	1739	op->below->above = op;
1941	where->inv = op;	1740	inv = op;
1942	}	1741	}
		1742
		1743	INVOKE_OBJECT (INSERT, this);
		1744
1943	return op;	1745	return op;
1944	}	1746	}
1945		1747
1946	/*	1748	/*
1947	* Checks if any objects has a move_type that matches objects	1749	* Checks if any objects has a move_type that matches objects
…		…
1961	*	1763	*
1962	* 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
1963	* 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
1964	* on top.	1766	* on top.
1965	*/	1767	*/
1966		1768	int
1967	int check_move_on (object *op, object *originator)	1769	check_move_on (object *op, object *originator)
1968	{	1770	{
1969	object *tmp;	1771	object *tmp;
1970	tag_t tag;
1971	mapstruct *m=op->map;	1772	maptile *m = op->map;
1972	int x=op->x, y=op->y;	1773	int x = op->x, y = op->y;
		1774
1973	MoveType move_on, move_slow, move_block;	1775	MoveType move_on, move_slow, move_block;
1974		1776
1975	if(QUERY_FLAG(op,FLAG_NO_APPLY))	1777	if (QUERY_FLAG (op, FLAG_NO_APPLY))
1976	return 0;	1778	return 0;
1977		1779
1978	tag = op->count;
1979
1980	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);
1981	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);
1982	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);
1983		1783
1984	/* if nothing on this space will slow op down or be applied,	1784	/* if nothing on this space will slow op down or be applied,
1985	* no need to do checking below. have to make sure move_type	1785	* no need to do checking below. have to make sure move_type
1986	* is set, as lots of objects don't have it set - we treat that	1786	* is set, as lots of objects don't have it set - we treat that
1987	* as walking.	1787	* as walking.
1988	*/	1788	*/
1989	if (op->move_type && !(op->move_type & move_on) && !(op->move_type & move_slow))	1789	if (op->move_type && !(op->move_type & move_on) && !(op->move_type & move_slow))
1990	return 0;	1790	return 0;
1991		1791
1992	/* This is basically inverse logic of that below - basically,	1792	/* This is basically inverse logic of that below - basically,
1993	* if the object can avoid the move on or slow move, they do so,	1793	* if the object can avoid the move on or slow move, they do so,
1994	* but can't do it if the alternate movement they are using is	1794	* but can't do it if the alternate movement they are using is
1995	* blocked. Logic on this seems confusing, but does seem correct.	1795	* blocked. Logic on this seems confusing, but does seem correct.
1996	*/	1796	*/
1997	if ((op->move_type & ~move_on & ~move_block) != 0 &&	1797	if ((op->move_type & ~move_on & ~move_block) != 0 && (op->move_type & ~move_slow & ~move_block) != 0)
1998	(op->move_type & ~move_slow & ~move_block) != 0) return 0;	1798	return 0;
1999		1799
2000	/* The objects have to be checked from top to bottom.	1800	/* The objects have to be checked from top to bottom.
2001	* Hence, we first go to the top:	1801	* Hence, we first go to the top:
2002	*/	1802	*/
2003		1803
2004	for (tmp=GET_MAP_OB(op->map, op->x, op->y); tmp!=NULL &&	1804	for (tmp = op->ms ().bot; tmp && tmp->above; tmp = tmp->above)
2005	tmp->above!=NULL; tmp=tmp->above) {	1805	{
2006	/* Trim the search when we find the first other spell effect	1806	/* Trim the search when we find the first other spell effect
2007	* 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,
2008	* we don't need to check all of them.	1808	* we don't need to check all of them.
2009	*/	1809	*/
2010	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG(tmp, FLAG_NO_PICK)) break;	1810	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG (tmp, FLAG_NO_PICK))
		1811	break;
		1812	}
		1813
		1814	for (; tmp; tmp = tmp->below)
2011	}	1815	{
2012	for(;tmp!=NULL; tmp=tmp->below) {	1816	if (tmp == op)
2013	if (tmp == op) continue; /* Can't apply yourself */	1817	continue; /* Can't apply yourself */
2014		1818
2015	/* Check to see if one of the movement types should be slowed down.	1819	/* Check to see if one of the movement types should be slowed down.
2016	* Second check makes sure that the movement types not being slowed	1820	* Second check makes sure that the movement types not being slowed
2017	* (~slow_move) is not blocked on this space - just because the	1821	* (~slow_move) is not blocked on this space - just because the
2018	* space doesn't slow down swimming (for example), if you can't actually	1822	* space doesn't slow down swimming (for example), if you can't actually
2019	* swim on that space, can't use it to avoid the penalty.	1823	* swim on that space, can't use it to avoid the penalty.
2020	*/	1824	*/
2021	if (!QUERY_FLAG(op, FLAG_WIZPASS)) {	1825	if (!QUERY_FLAG (op, FLAG_WIZPASS))
		1826	{
2022	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||	1827	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||
2023	((op->move_type & tmp->move_slow) &&
2024	(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))
		1829	{
2025		1830
2026	float diff;	1831	float
2027
2028	diff = tmp->move_slow_penalty*FABS(op->speed);	1832	diff = tmp->move_slow_penalty * fabs (op->speed);
		1833
2029	if (op->type == PLAYER) {	1834	if (op->type == PLAYER)
2030	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)) ||
2031	(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)))
2032	diff /= 4.0;	1837	diff /= 4.0;
2033	}	1838
2034	}
2035	op->speed_left -= diff;	1839	op->speed_left -= diff;
2036	}	1840	}
2037	}	1841	}
2038		1842
2039	/* Basically same logic as above, except now for actual apply. */	1843	/* Basically same logic as above, except now for actual apply. */
2040	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||	1844	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||
2041	((op->move_type & tmp->move_on) &&
2042	(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))
2043		1846	{
2044	move_apply(tmp, op, originator);	1847	move_apply (tmp, op, originator);
		1848
2045	if (was_destroyed (op, tag))	1849	if (op->destroyed ())
2046	return 1;	1850	return 1;
2047		1851
2048	/* what the person/creature stepped onto has moved the object	1852	/* what the person/creature stepped onto has moved the object
2049	* someplace new. Don't process any further - if we did,	1853	* someplace new. Don't process any further - if we did,
2050	* have a feeling strange problems would result.	1854	* have a feeling strange problems would result.
2051	*/	1855	*/
2052	if (op->map != m || op->x != x || op->y != y) return 0;	1856	if (op->map != m || op->x != x || op->y != y)
		1857	return 0;
2053	}	1858	}
2054	}	1859	}
		1860
2055	return 0;	1861	return 0;
2056	}	1862	}
2057		1863
2058	/*	1864	/*
2059	* present_arch(arch, map, x, y) searches for any objects with	1865	* present_arch(arch, map, x, y) searches for any objects with
2060	* a matching archetype at the given map and coordinates.	1866	* a matching archetype at the given map and coordinates.
2061	* The first matching object is returned, or NULL if none.	1867	* The first matching object is returned, or NULL if none.
2062	*/	1868	*/
2063		1869	object *
2064	object *present_arch(const archetype *at, mapstruct *m, int x, int y) {	1870	present_arch (const archetype *at, maptile *m, int x, int y)
2065	object *tmp;	1871	{
2066	if(m==NULL || out_of_map(m,x,y)) {	1872	if (!m || out_of_map (m, x, y))
		1873	{
2067	LOG(llevError,"Present_arch called outside map.\n");	1874	LOG (llevError, "Present_arch called outside map.\n");
2068	return NULL;	1875	return NULL;
2069	}	1876	}
2070	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)
2071	if(tmp->arch == at)	1879	if (tmp->arch == at)
2072	return tmp;	1880	return tmp;
		1881
2073	return NULL;	1882	return NULL;
2074	}	1883	}
2075		1884
2076	/*	1885	/*
2077	* present(type, map, x, y) searches for any objects with	1886	* present(type, map, x, y) searches for any objects with
2078	* a matching type variable at the given map and coordinates.	1887	* a matching type variable at the given map and coordinates.
2079	* The first matching object is returned, or NULL if none.	1888	* The first matching object is returned, or NULL if none.
2080	*/	1889	*/
2081		1890	object *
2082	object *present(unsigned char type,mapstruct *m, int x,int y) {	1891	present (unsigned char type, maptile *m, int x, int y)
2083	object *tmp;	1892	{
2084	if(out_of_map(m,x,y)) {	1893	if (out_of_map (m, x, y))
		1894	{
2085	LOG(llevError,"Present called outside map.\n");	1895	LOG (llevError, "Present called outside map.\n");
2086	return NULL;	1896	return NULL;
2087	}	1897	}
2088	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)
2089	if(tmp->type==type)	1900	if (tmp->type == type)
2090	return tmp;	1901	return tmp;
		1902
2091	return NULL;	1903	return NULL;
2092	}	1904	}
2093		1905
2094	/*	1906	/*
2095	* present_in_ob(type, object) searches for any objects with	1907	* present_in_ob(type, object) searches for any objects with
2096	* a matching type variable in the inventory of the given object.	1908	* a matching type variable in the inventory of the given object.
2097	* The first matching object is returned, or NULL if none.	1909	* The first matching object is returned, or NULL if none.
2098	*/	1910	*/
2099		1911	object *
2100	object *present_in_ob(unsigned char type, const object *op) {	1912	present_in_ob (unsigned char type, const object *op)
2101	object *tmp;	1913	{
2102	for(tmp=op->inv;tmp!=NULL;tmp=tmp->below)	1914	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
2103	if(tmp->type==type)	1915	if (tmp->type == type)
2104	return tmp;	1916	return tmp;
		1917
2105	return NULL;	1918	return NULL;
2106	}	1919	}
2107		1920
2108	/*	1921	/*
2109	* present_in_ob (type, str, object) searches for any objects with	1922	* present_in_ob (type, str, object) searches for any objects with
…		…
2117	* 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
2118	* 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
2119	* 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
2120	* to be unique.	1933	* to be unique.
2121	*/	1934	*/
2122		1935	object *
2123	object *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)
2124	object *tmp;	1937	{
2125
2126	for(tmp=op->inv; tmp!=NULL; tmp=tmp->below) {	1938	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2127	if ((type==-1 || tmp->type==type) && (!strcmp(str, tmp->name)))	1939	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))
2128	return tmp;	1940	return tmp;
2129	}	1941
2130	return NULL;	1942	return 0;
2131	}	1943	}
2132		1944
2133	/*	1945	/*
2134	* present_arch_in_ob(archetype, object) searches for any objects with	1946	* present_arch_in_ob(archetype, object) searches for any objects with
2135	* a matching archetype in the inventory of the given object.	1947	* a matching archetype in the inventory of the given object.
2136	* The first matching object is returned, or NULL if none.	1948	* The first matching object is returned, or NULL if none.
2137	*/	1949	*/
2138		1950	object *
2139	object *present_arch_in_ob(const archetype *at, const object *op) {	1951	present_arch_in_ob (const archetype *at, const object *op)
2140	object *tmp;	1952	{
2141	for(tmp=op->inv;tmp!=NULL;tmp=tmp->below)	1953	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
2142	if( tmp->arch == at)	1954	if (tmp->arch == at)
2143	return tmp;	1955	return tmp;
		1956
2144	return NULL;	1957	return NULL;
2145	}	1958	}
2146		1959
2147	/*	1960	/*
2148	* activate recursively a flag on an object inventory	1961	* activate recursively a flag on an object inventory
2149	*/	1962	*/
		1963	void
2150	void flag_inv(object*op, int flag){	1964	flag_inv (object *op, int flag)
2151	object *tmp;	1965	{
2152	if(op->inv)
2153	for(tmp = op->inv; tmp != NULL; tmp = tmp->below){	1966	for (object *tmp = op->inv; tmp; tmp = tmp->below)
		1967	{
2154	SET_FLAG(tmp, flag);	1968	SET_FLAG (tmp, flag);
2155	flag_inv(tmp,flag);	1969	flag_inv (tmp, flag);
2156	}	1970	}
		1971	}
		1972
2157	}/*	1973	/*
2158	* desactivate recursively a flag on an object inventory	1974	* deactivate recursively a flag on an object inventory
2159	*/	1975	*/
		1976	void
2160	void unflag_inv(object*op, int flag){	1977	unflag_inv (object *op, int flag)
2161	object *tmp;	1978	{
2162	if(op->inv)
2163	for(tmp = op->inv; tmp != NULL; tmp = tmp->below){	1979	for (object *tmp = op->inv; tmp; tmp = tmp->below)
		1980	{
2164	CLEAR_FLAG(tmp, flag);	1981	CLEAR_FLAG (tmp, flag);
2165	unflag_inv(tmp,flag);	1982	unflag_inv (tmp, flag);
2166	}	1983	}
2167	}
2168
2169	/*
2170	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in
2171	* all it's inventory (recursively).
2172	* If checksums are used, a player will get set_cheat called for
2173	* him/her-self and all object carried by a call to this function.
2174	*/
2175
2176	void set_cheat(object *op) {
2177	SET_FLAG(op, FLAG_WAS_WIZ);
2178	flag_inv(op, FLAG_WAS_WIZ);
2179	}	1984	}
2180		1985
2181	/*	1986	/*
2182	* 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
2183	* 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
…		…
2185	* to search (see the freearr_x/y[] definition).	1990	* to search (see the freearr_x/y[] definition).
2186	* It returns a random choice among the alternatives found.	1991	* It returns a random choice among the alternatives found.
2187	* 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
2188	* does all 4 immediate directions). This returns the index into the	1993	* does all 4 immediate directions). This returns the index into the
2189	* 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)
2190	* Note - this only checks to see if there is space for the head of the
2191	* object - if it is a multispace object, this should be called for all
2192	* pieces.
2193	* Note2: This function does correctly handle tiled maps, but does not	1995	* Note: This function does correctly handle tiled maps, but does not
2194	* inform the caller. However, insert_ob_in_map will update as	1996	* inform the caller. However, insert_ob_in_map will update as
2195	* 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.
2196	* 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
2197	* 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
2198	* 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
2199	* 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
2200	* customized, changed states, etc.	2002	* customized, changed states, etc.
2201	*/	2003	*/
2202		2004	int
2203	int 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)
		2006	{
		2007	int altern[SIZEOFFREE];
2204	int i,index=0, flag;	2008	int index = 0, flag;
2205	static int altern[SIZEOFFREE];
2206		2009
2207	for(i=start;i<stop;i++) {	2010	for (int i = start; i < stop; i++)
2208	flag = ob_blocked(ob,m,x+freearr_x[i],y+freearr_y[i]);	2011	{
2209	if(!flag)	2012	mapxy pos (m, x, y); pos.move (i);
		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	{
2210	altern[index++]=i;	2028	altern [index++] = i;
		2029	continue;
		2030	}
2211		2031
2212	/* 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.
2213	* 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.
2214	* 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 -
2215	* 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
2216	* 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
2217	* to only the spaces immediately surrounding the target area, and	2037	* to only the spaces immediately surrounding the target area, and
2218	* won't look 2 spaces south of the target space.	2038	* won't look 2 spaces south of the target space.
2219	*/	2039	*/
2220	else if ((flag & AB_NO_PASS) && maxfree[i]<stop)	2040	if (ms.move_block == MOVE_ALL && maxfree[i] < stop)
		2041	{
2221	stop=maxfree[i];	2042	stop = maxfree[i];
2222	}	2043	continue;
2223	if(!index) return -1;	2044	}
2224	return altern[RANDOM()%index];
2225	}
2226		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;
		2056	}
		2057
		2058	if (!index)
		2059	return -1;
		2060
		2061	return altern [rndm (index)];
		2062	}
		2063
2227	/*	2064	/*
2228	* find_first_free_spot(archetype, mapstruct, x, y) works like	2065	* find_first_free_spot(archetype, maptile, x, y) works like
2229	* find_free_spot(), but it will search max number of squares.	2066	* find_free_spot(), but it will search max number of squares.
2230	* 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.
2231	* 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.
2232	*/	2069	*/
2233		2070	int
2234	int 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)
2235	int i;	2072	{
2236	for(i=0;i<SIZEOFFREE;i++) {	2073	for (int i = 0; i < SIZEOFFREE; i++)
2237	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]))
2238	return i;	2075	return i;
2239	}	2076
2240	return -1;	2077	return -1;
2241	}	2078	}
2242		2079
2243	/*	2080	/*
2244	* The function permute(arr, begin, end) randomly reorders the array	2081	* The function permute(arr, begin, end) randomly reorders the array
2245	* arr[begin..end-1].	2082	* arr[begin..end-1].
		2083	* now uses a fisher-yates shuffle, old permute was broken
2246	*/	2084	*/
		2085	static void
2247	static void permute(int *arr, int begin, int end)	2086	permute (int *arr, int begin, int end)
2248	{	2087	{
2249	int i, j, tmp, len;	2088	arr += begin;
		2089	end -= begin;
2250		2090
2251	len = end-begin;	2091	while (--end)
2252	for(i = begin; i < end; i++)	2092	swap (arr [end], arr [rndm (end + 1)]);
2253	{
2254	j = begin+RANDOM()%len;
2255
2256	tmp = arr[i];
2257	arr[i] = arr[j];
2258	arr[j] = tmp;
2259	}
2260	}	2093	}
2261		2094
2262	/* new function to make monster searching more efficient, and effective!	2095	/* new function to make monster searching more efficient, and effective!
2263	* This basically returns a randomized array (in the passed pointer) of	2096	* This basically returns a randomized array (in the passed pointer) of
2264	* 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
2265	* monsters to the north first. However, the size of the array passed	2098	* monsters to the north first. However, the size of the array passed
2266	* covers all the spaces, so within that size, all the spaces within	2099	* covers all the spaces, so within that size, all the spaces within
2267	* 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.
2268	*/	2101	*/
		2102	void
2269	void get_search_arr(int *search_arr)	2103	get_search_arr (int *search_arr)
2270	{	2104	{
2271	int i;	2105	int i;
2272		2106
2273	for(i = 0; i < SIZEOFFREE; i++)	2107	for (i = 0; i < SIZEOFFREE; i++)
2274	{
2275	search_arr[i] = i;	2108	search_arr[i] = i;
2276	}
2277		2109
2278	permute(search_arr, 1, SIZEOFFREE1+1);	2110	permute (search_arr, 1, SIZEOFFREE1 + 1);
2279	permute(search_arr, SIZEOFFREE1+1, SIZEOFFREE2+1);	2111	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);
2280	permute(search_arr, SIZEOFFREE2+1, SIZEOFFREE);	2112	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);
2281	}	2113	}
2282		2114
2283	/*	2115	/*
2284	* find_dir(map, x, y, exclude) will search some close squares in the	2116	* find_dir(map, x, y, exclude) will search some close squares in the
2285	* given map at the given coordinates for live objects.	2117	* given map at the given coordinates for live objects.
…		…
2290	* Perhaps incorrectly, but I'm making the assumption that exclude	2122	* Perhaps incorrectly, but I'm making the assumption that exclude
2291	* 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
2292	* 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
2293	* there is capable of.	2125	* there is capable of.
2294	*/	2126	*/
2295		2127	int
2296	int find_dir(mapstruct *m, int x, int y, object *exclude) {	2128	find_dir (maptile *m, int x, int y, object *exclude)
		2129	{
2297	int i,max=SIZEOFFREE, mflags;	2130	int i, max = SIZEOFFREE, mflags;
		2131
2298	sint16 nx, ny;	2132	sint16 nx, ny;
2299	object *tmp;	2133	object *tmp;
2300	mapstruct *mp;	2134	maptile *mp;
		2135
2301	MoveType blocked, move_type;	2136	MoveType blocked, move_type;
2302		2137
2303	if (exclude && exclude->head) {	2138	if (exclude && exclude->head_ () != exclude)
		2139	{
2304	exclude = exclude->head;	2140	exclude = exclude->head;
2305	move_type = exclude->move_type;	2141	move_type = exclude->move_type;
2306	} else {	2142	}
		2143	else
		2144	{
2307	/* If we don't have anything, presume it can use all movement types. */	2145	/* If we don't have anything, presume it can use all movement types. */
2308	move_type=MOVE_ALL;	2146	move_type = MOVE_ALL;
		2147	}
		2148
		2149	for (i = 1; i < max; i++)
2309	}	2150	{
2310
2311	for(i=1;i<max;i++) {
2312	mp = m;	2151	mp = m;
2313	nx = x + freearr_x[i];	2152	nx = x + freearr_x[i];
2314	ny = y + freearr_y[i];	2153	ny = y + freearr_y[i];
2315		2154
2316	mflags = get_map_flags(m, &mp, nx, ny, &nx, &ny);	2155	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);
		2156
2317	if (mflags & P_OUT_OF_MAP) {	2157	if (mflags & P_OUT_OF_MAP)
		2158	max = maxfree[i];
		2159	else
		2160	{
		2161	mapspace &ms = mp->at (nx, ny);
		2162
		2163	blocked = ms.move_block;
		2164
		2165	if ((move_type & blocked) == move_type)
2318	max = maxfree[i];	2166	max = maxfree[i];
2319	} else {
2320	blocked = GET_MAP_MOVE_BLOCK(mp, nx, ny);
2321
2322	if ((move_type & blocked) == move_type) {
2323	max=maxfree[i];
2324	} else if (mflags & P_IS_ALIVE) {	2167	else if (mflags & P_IS_ALIVE)
2325	for (tmp=GET_MAP_OB(mp,nx,ny); tmp!= NULL; tmp=tmp->above) {	2168	{
		2169	for (tmp = ms.bot; tmp; tmp = tmp->above)
2326	if ((QUERY_FLAG(tmp,FLAG_MONSTER) || tmp->type==PLAYER) &&	2170	if ((tmp->flag [FLAG_MONSTER] || tmp->type == PLAYER)
2327	(tmp != exclude ||(tmp->head && tmp->head != exclude))) {	2171	&& (tmp != exclude || (tmp->head_ () != tmp && tmp->head_ () != exclude)))
2328	break;	2172	break;
2329	}	2173
2330	}
2331	if(tmp) {	2174	if (tmp)
2332	return freedir[i];	2175	return freedir[i];
2333	}
2334	}	2176	}
2335	}	2177	}
2336	}	2178	}
		2179
2337	return 0;	2180	return 0;
2338	}	2181	}
2339		2182
2340	/*	2183	/*
2341	* distance(object 1, object 2) will return the square of the	2184	* distance(object 1, object 2) will return the square of the
2342	* distance between the two given objects.	2185	* distance between the two given objects.
2343	*/	2186	*/
2344		2187	int
2345	int distance(const object *ob1, const object *ob2) {	2188	distance (const object *ob1, const object *ob2)
2346	int i;	2189	{
2347	i= (ob1->x - ob2->x)*(ob1->x - ob2->x)+	2190	return (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);
2348	(ob1->y - ob2->y)*(ob1->y - ob2->y);
2349	return i;
2350	}	2191	}
2351		2192
2352	/*	2193	/*
2353	* 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
2354	* 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
2355	* object, needs to travel toward it.	2196	* object, needs to travel toward it.
2356	*/	2197	*/
2357		2198	int
2358	int find_dir_2(int x, int y) {	2199	find_dir_2 (int x, int y)
		2200	{
2359	int q;	2201	int q;
2360		2202
2361	if(y)	2203	if (y)
2362	q=x*100/y;	2204	q = x * 100 / y;
2363	else if (x)	2205	else if (x)
2364	q= -300*x;	2206	q = -300 * x;
2365	else	2207	else
2366	return 0;	2208	return 0;
2367		2209
2368	if(y>0) {	2210	if (y > 0)
		2211	{
2369	if(q < -242)	2212	if (q < -242)
2370	return 3 ;	2213	return 3;
2371	if (q < -41)	2214	if (q < -41)
2372	return 2 ;	2215	return 2;
2373	if (q < 41)	2216	if (q < 41)
2374	return 1 ;	2217	return 1;
2375	if (q < 242)	2218	if (q < 242)
2376	return 8 ;	2219	return 8;
2377	return 7 ;	2220	return 7;
2378	}	2221	}
2379		2222
2380	if (q < -242)	2223	if (q < -242)
2381	return 7 ;	2224	return 7;
2382	if (q < -41)	2225	if (q < -41)
2383	return 6 ;	2226	return 6;
2384	if (q < 41)	2227	if (q < 41)
2385	return 5 ;	2228	return 5;
2386	if (q < 242)	2229	if (q < 242)
2387	return 4 ;	2230	return 4;
2388		2231
2389	return 3 ;	2232	return 3;
2390	}
2391
2392	/*
2393	* absdir(int): Returns a number between 1 and 8, which represent
2394	* the "absolute" direction of a number (it actually takes care of
2395	* "overflow" in previous calculations of a direction).
2396	*/
2397
2398	int absdir(int d) {
2399	while(d<1) d+=8;
2400	while(d>8) d-=8;
2401	return d;
2402	}	2233	}
2403		2234
2404	/*	2235	/*
2405	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is	2236	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is
2406	* between two directions (which are expected to be absolute (see absdir())	2237	* between two directions (which are expected to be absolute (see absdir())
2407	*/	2238	*/
2408		2239	int
2409	int dirdiff(int dir1, int dir2) {	2240	dirdiff (int dir1, int dir2)
		2241	{
2410	int d;	2242	int d;
		2243
2411	d = abs(dir1 - dir2);	2244	d = abs (dir1 - dir2);
2412	if(d>4)	2245	if (d > 4)
2413	d = 8 - d;	2246	d = 8 - d;
		2247
2414	return d;	2248	return d;
2415	}	2249	}
2416		2250
2417	/* peterm:	2251	/* peterm:
2418	* 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.
…		…
2421	* 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
2422	* 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.
2423	* 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
2424	* functions.	2258	* functions.
2425	*/	2259	*/
2426
2427	int reduction_dir[SIZEOFFREE][3] = {	2260	int reduction_dir[SIZEOFFREE][3] = {
2428	{0,0,0}, /* 0 */	2261	{0, 0, 0}, /* 0 */
2429	{0,0,0}, /* 1 */	2262	{0, 0, 0}, /* 1 */
2430	{0,0,0}, /* 2 */	2263	{0, 0, 0}, /* 2 */
2431	{0,0,0}, /* 3 */	2264	{0, 0, 0}, /* 3 */
2432	{0,0,0}, /* 4 */	2265	{0, 0, 0}, /* 4 */
2433	{0,0,0}, /* 5 */	2266	{0, 0, 0}, /* 5 */
2434	{0,0,0}, /* 6 */	2267	{0, 0, 0}, /* 6 */
2435	{0,0,0}, /* 7 */	2268	{0, 0, 0}, /* 7 */
2436	{0,0,0}, /* 8 */	2269	{0, 0, 0}, /* 8 */
2437	{8,1,2}, /* 9 */	2270	{8, 1, 2}, /* 9 */
2438	{1,2,-1}, /* 10 */	2271	{1, 2, -1}, /* 10 */
2439	{2,10,12}, /* 11 */	2272	{2, 10, 12}, /* 11 */
2440	{2,3,-1}, /* 12 */	2273	{2, 3, -1}, /* 12 */
2441	{2,3,4}, /* 13 */	2274	{2, 3, 4}, /* 13 */
2442	{3,4,-1}, /* 14 */	2275	{3, 4, -1}, /* 14 */
2443	{4,14,16}, /* 15 */	2276	{4, 14, 16}, /* 15 */
2444	{5,4,-1}, /* 16 */	2277	{5, 4, -1}, /* 16 */
2445	{4,5,6}, /* 17 */	2278	{4, 5, 6}, /* 17 */
2446	{6,5,-1}, /* 18 */	2279	{6, 5, -1}, /* 18 */
2447	{6,20,18}, /* 19 */	2280	{6, 20, 18}, /* 19 */
2448	{7,6,-1}, /* 20 */	2281	{7, 6, -1}, /* 20 */
2449	{6,7,8}, /* 21 */	2282	{6, 7, 8}, /* 21 */
2450	{7,8,-1}, /* 22 */	2283	{7, 8, -1}, /* 22 */
2451	{8,22,24}, /* 23 */	2284	{8, 22, 24}, /* 23 */
2452	{8,1,-1}, /* 24 */	2285	{8, 1, -1}, /* 24 */
2453	{24,9,10}, /* 25 */	2286	{24, 9, 10}, /* 25 */
2454	{9,10,-1}, /* 26 */	2287	{9, 10, -1}, /* 26 */
2455	{10,11,-1}, /* 27 */	2288	{10, 11, -1}, /* 27 */
2456	{27,11,29}, /* 28 */	2289	{27, 11, 29}, /* 28 */
2457	{11,12,-1}, /* 29 */	2290	{11, 12, -1}, /* 29 */
2458	{12,13,-1}, /* 30 */	2291	{12, 13, -1}, /* 30 */
2459	{12,13,14}, /* 31 */	2292	{12, 13, 14}, /* 31 */
2460	{13,14,-1}, /* 32 */	2293	{13, 14, -1}, /* 32 */
2461	{14,15,-1}, /* 33 */	2294	{14, 15, -1}, /* 33 */
2462	{33,15,35}, /* 34 */	2295	{33, 15, 35}, /* 34 */
2463	{16,15,-1}, /* 35 */	2296	{16, 15, -1}, /* 35 */
2464	{17,16,-1}, /* 36 */	2297	{17, 16, -1}, /* 36 */
2465	{18,17,16}, /* 37 */	2298	{18, 17, 16}, /* 37 */
2466	{18,17,-1}, /* 38 */	2299	{18, 17, -1}, /* 38 */
2467	{18,19,-1}, /* 39 */	2300	{18, 19, -1}, /* 39 */
2468	{41,19,39}, /* 40 */	2301	{41, 19, 39}, /* 40 */
2469	{19,20,-1}, /* 41 */	2302	{19, 20, -1}, /* 41 */
2470	{20,21,-1}, /* 42 */	2303	{20, 21, -1}, /* 42 */
2471	{20,21,22}, /* 43 */	2304	{20, 21, 22}, /* 43 */
2472	{21,22,-1}, /* 44 */	2305	{21, 22, -1}, /* 44 */
2473	{23,22,-1}, /* 45 */	2306	{23, 22, -1}, /* 45 */
2474	{45,47,23}, /* 46 */	2307	{45, 47, 23}, /* 46 */
2475	{23,24,-1}, /* 47 */	2308	{23, 24, -1}, /* 47 */
2476	{24,9,-1}}; /* 48 */	2309	{24, 9, -1}
		2310	}; /* 48 */
2477		2311
2478	/* Recursive routine to step back and see if we can	2312	/* Recursive routine to step back and see if we can
2479	* find a path to that monster that we found. If not,	2313	* find a path to that monster that we found. If not,
2480	* we don't bother going toward it. Returns 1 if we	2314	* we don't bother going toward it. Returns 1 if we
2481	* can see a direct way to get it	2315	* can see a direct way to get it
2482	* Modified to be map tile aware -.MSW	2316	* Modified to be map tile aware -.MSW
2483	*/	2317	*/
2484		2318	int
2485
2486	int can_see_monsterP(mapstruct *m, int x, int y,int dir) {	2319	can_see_monsterP (maptile *m, int x, int y, int dir)
		2320	{
2487	sint16 dx, dy;	2321	sint16 dx, dy;
2488	int mflags;	2322	int mflags;
2489		2323
		2324	if (dir < 0)
2490	if(dir<0) return 0; /* exit condition: invalid direction */	2325	return 0; /* exit condition: invalid direction */
2491		2326
2492	dx = x + freearr_x[dir];	2327	dx = x + freearr_x[dir];
2493	dy = y + freearr_y[dir];	2328	dy = y + freearr_y[dir];
2494		2329
2495	mflags = get_map_flags(m, &m, dx, dy, &dx, &dy);	2330	mflags = get_map_flags (m, &m, dx, dy, &dx, &dy);
2496		2331
2497	/* This functional arguably was incorrect before - it was	2332	/* This functional arguably was incorrect before - it was
2498	* checking for P_WALL - that was basically seeing if	2333	* checking for P_WALL - that was basically seeing if
2499	* we could move to the monster - this is being more	2334	* we could move to the monster - this is being more
2500	* literal on if we can see it. To know if we can actually	2335	* literal on if we can see it. To know if we can actually
2501	* move to the monster, we'd need the monster passed in or	2336	* move to the monster, we'd need the monster passed in or
2502	* at least its move type.	2337	* at least its move type.
2503	*/	2338	*/
2504	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW)) return 0;	2339	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW))
		2340	return 0;
2505		2341
2506	/* yes, can see. */	2342	/* yes, can see. */
2507	if(dir < 9) return 1;	2343	if (dir < 9)
		2344	return 1;
		2345
2508	return can_see_monsterP(m, x, y, reduction_dir[dir][0]) |	2346	return can_see_monsterP (m, x, y, reduction_dir[dir][0])
2509	can_see_monsterP(m,x,y, reduction_dir[dir][1]) |	2347	| can_see_monsterP (m, x, y, reduction_dir[dir][1])
2510	can_see_monsterP(m,x,y, reduction_dir[dir][2]);	2348	| can_see_monsterP (m, x, y, reduction_dir[dir][2]);
2511	}	2349	}
2512		2350
2513
2514
2515	/*	2351	/*
2516	* 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
2517	* picked up by the picker. Returnes 1 if it can be	2353	* picked up by the picker. Returnes 1 if it can be
2518	* picked up, otherwise 0.	2354	* picked up, otherwise 0.
2519	*	2355	*
2520	* 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
2521	* core dumps if they do.	2357	* core dumps if they do.
2522	*	2358	*
2523	* 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)
2524	*/	2360	*/
2525		2361	int
2526	int can_pick(const object *who, const object *item) {	2362	can_pick (const object *who, const object *item)
		2363	{
2527	return /*QUERY_FLAG(who,FLAG_WIZ)||*/	2364	return /*QUERY_FLAG(who,FLAG_WIZ)|| */
2528	(item->weight>0&&!QUERY_FLAG(item,FLAG_NO_PICK)&&	2365	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&
2529	!QUERY_FLAG(item,FLAG_ALIVE)&&!item->invisible &&	2366	!QUERY_FLAG (item, FLAG_ALIVE) && !item->invisible && (who->type == PLAYER || item->weight < who->weight / 3));
2530	(who->type==PLAYER||item->weight<who->weight/3));
2531	}	2367	}
2532
2533		2368
2534	/*	2369	/*
2535	* create clone from object to another	2370	* create clone from object to another
2536	*/	2371	*/
		2372	object *
2537	object *object_create_clone (object *asrc) {	2373	object_create_clone (object *asrc)
		2374	{
2538	object *dst = NULL,*tmp,*src,*part,*prev, *item;	2375	object *dst = 0, *tmp, *src, *prev, *item;
2539		2376
2540	if(!asrc) return NULL;	2377	if (!asrc)
2541	src = asrc;	2378	return 0;
2542	if(src->head)	2379
2543	src = src->head;	2380	src = asrc->head_ ();
2544		2381
2545	prev = NULL;	2382	prev = 0;
2546	for(part = src; part; part = part->more) {	2383	for (object *part = src; part; part = part->more)
2547	tmp = get_object();	2384	{
2548	copy_object(part,tmp);	2385	tmp = part->clone ();
2549	tmp->x -= src->x;	2386	tmp->x -= src->x;
2550	tmp->y -= src->y;	2387	tmp->y -= src->y;
		2388
2551	if(!part->head) {	2389	if (!part->head)
		2390	{
2552	dst = tmp;	2391	dst = tmp;
2553	tmp->head = NULL;	2392	tmp->head = 0;
		2393	}
2554	} else {	2394	else
2555	tmp->head = dst;	2395	tmp->head = dst;
2556	}	2396
2557	tmp->more = NULL;	2397	tmp->more = 0;
		2398
2558	if(prev)	2399	if (prev)
2559	prev->more = tmp;	2400	prev->more = tmp;
		2401
2560	prev = tmp;	2402	prev = tmp;
2561	}	2403	}
2562	/*** copy inventory ***/	2404
2563	for(item = src->inv; item; item = item->below) {	2405	for (item = src->inv; item; item = item->below)
2564	(void) insert_ob_in_ob(object_create_clone(item),dst);	2406	insert_ob_in_ob (object_create_clone (item), dst);
2565	}
2566		2407
2567	return dst;	2408	return dst;
2568	}
2569
2570	/* return true if the object was destroyed, 0 otherwise */
2571	int was_destroyed (const object *op, tag_t old_tag)
2572	{
2573	/* checking for FLAG_FREED isn't necessary, but makes this function more
2574	* robust */
2575	return op->count != old_tag || QUERY_FLAG (op, FLAG_FREED);
2576	}
2577
2578	/* GROS - Creates an object using a string representing its content. */
2579	/* Basically, we save the content of the string to a temp file, then call */
2580	/* load_object on it. I admit it is a highly inefficient way to make things, */
2581	/* but it was simple to make and allows reusing the load_object function. */
2582	/* Remember not to use load_object_str in a time-critical situation. */
2583	/* Also remember that multiparts objects are not supported for now. */
2584
2585	object* load_object_str(const char *obstr)
2586	{
2587	object *op;
2588	char filename[MAX_BUF];
2589	sprintf(filename,"%s/cfloadobstr2044",settings.tmpdir);
2590
2591	FILE *tempfile=fopen(filename,"w");
2592	if (tempfile == NULL)
2593	{
2594	LOG(llevError,"Error - Unable to access load object temp file\n");
2595	return NULL;
2596	};
2597	fprintf(tempfile,obstr);
2598	fclose(tempfile);
2599
2600	op=get_object();
2601
2602	object_thawer thawer (filename);
2603	if (thawer)
2604	load_object(thawer,op,LO_NEWFILE,0);
2605	LOG(llevDebug," load str completed, object=%s\n",op->name);
2606	CLEAR_FLAG(op,FLAG_REMOVED);
2607
2608	return op;
2609	}	2409	}
2610		2410
2611	/* This returns the first object in who's inventory that	2411	/* This returns the first object in who's inventory that
2612	* has the same type and subtype match.	2412	* has the same type and subtype match.
2613	* returns NULL if no match.	2413	* returns NULL if no match.
2614	*/	2414	*/
		2415	object *
2615	object *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)
2616	{	2417	{
2617	object *tmp;
2618
2619	for (tmp=who->inv; tmp; tmp=tmp->below)	2418	for (object *tmp = who->inv; tmp; tmp = tmp->below)
2620	if (tmp->type == type && tmp->subtype == subtype) return tmp;	2419	if (tmp->type == type && tmp->subtype == subtype)
		2420	return tmp;
2621		2421
2622	return NULL;	2422	return 0;
2623	}	2423	}
2624		2424
2625	/* 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,
2626	* otherwise return NULL.	2426	* otherwise return NULL.
2627	*	2427	*
2628	* key must be a passed in shared string - otherwise, this won't	2428	* key must be a passed in shared string - otherwise, this won't
2629	* do the desired thing.	2429	* do the desired thing.
2630	*/	2430	*/
		2431	key_value *
2631	key_value * get_ob_key_link(const object * ob, const char * key) {	2432	get_ob_key_link (const object *ob, const char *key)
2632	key_value * link;	2433	{
2633
2634	for (link = ob->key_values; link != NULL; link = link->next) {	2434	for (key_value *link = ob->key_values; link; link = link->next)
2635	if (link->key == key) {	2435	if (link->key == key)
2636	return link;	2436	return link;
2637	}	2437
2638	}	2438	return 0;
2639		2439	}
2640	return NULL;
2641	}
2642		2440
2643	/*	2441	/*
2644	* 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.
2645	*	2443	*
2646	* The argument doesn't need to be a shared string.	2444	* The argument doesn't need to be a shared string.
2647	*	2445	*
2648	* The returned string is shared.	2446	* The returned string is shared.
2649	*/	2447	*/
		2448	const char *
2650	const char * get_ob_key_value(const object * op, const char * const key) {	2449	get_ob_key_value (const object *op, const char *const key)
		2450	{
2651	key_value * link;	2451	key_value *link;
2652	const char * canonical_key;	2452	shstr_cmp canonical_key (key);
		2453
		2454	if (!canonical_key)
2653		2455	{
2654	canonical_key = find_string(key);
2655
2656	if (canonical_key == NULL) {
2657	/* 1. There being a field named key on any object	2456	/* 1. There being a field named key on any object
2658	* implies there'd be a shared string to find.	2457	* implies there'd be a shared string to find.
2659	* 2. Since there isn't, no object has this field.	2458	* 2. Since there isn't, no object has this field.
2660	* 3. Therefore, *this* object doesn't have this field.	2459	* 3. Therefore, *this* object doesn't have this field.
2661	*/	2460	*/
2662	return NULL;	2461	return 0;
2663	}	2462	}
2664		2463
2665	/* This is copied from get_ob_key_link() above -	2464	/* This is copied from get_ob_key_link() above -
2666	* only 4 lines, and saves the function call overhead.	2465	* only 4 lines, and saves the function call overhead.
2667	*/	2466	*/
2668	for (link = op->key_values; link != NULL; link = link->next) {	2467	for (link = op->key_values; link; link = link->next)
2669	if (link->key == canonical_key) {	2468	if (link->key == canonical_key)
2670	return link->value;	2469	return link->value;
2671	}
2672	}
2673	return NULL;
2674	}
2675		2470
		2471	return 0;
		2472	}
2676		2473
2677	/*	2474	/*
2678	* Updates the canonical_key in op to value.	2475	* Updates the canonical_key in op to value.
2679	*	2476	*
2680	* 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).
…		…
2682	* Unless add_key is TRUE, it won't add fields, only change the value of existing	2479	* Unless add_key is TRUE, it won't add fields, only change the value of existing
2683	* keys.	2480	* keys.
2684	*	2481	*
2685	* Returns TRUE on success.	2482	* Returns TRUE on success.
2686	*/	2483	*/
		2484	int
2687	int set_ob_key_value_s(object * op, const char * 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)
		2486	{
2688	key_value * field = NULL, *last=NULL;	2487	key_value *field = NULL, *last = NULL;
2689		2488
2690	for (field=op->key_values; field != NULL; field=field->next) {	2489	for (field = op->key_values; field != NULL; field = field->next)
		2490	{
2691	if (field->key != canonical_key) {	2491	if (field->key != canonical_key)
		2492	{
2692	last = field;	2493	last = field;
2693	continue;	2494	continue;
2694	}	2495	}
2695		2496
2696	if (field->value) FREE_AND_CLEAR_STR(field->value);
2697	if (value)	2497	if (value)
2698	field->value = add_string(value);	2498	field->value = value;
2699	else {	2499	else
		2500	{
2700	/* Basically, if the archetype has this key set,	2501	/* Basically, if the archetype has this key set,
2701	* we need to store the null value so when we save	2502	* we need to store the null value so when we save
2702	* it, we save the empty value so that when we load,	2503	* it, we save the empty value so that when we load,
2703	* we get this value back again.	2504	* we get this value back again.
2704	*/	2505	*/
2705	if (get_ob_key_link(&op->arch->clone, canonical_key))	2506	if (get_ob_key_link (op->arch, canonical_key))
2706	field->value = NULL;	2507	field->value = 0;
2707	else {	2508	else
2708	/* Delete this link */	2509	{
2709	if (field->key) FREE_AND_CLEAR_STR(field->key);	2510	if (last)
2710	if (field->value) FREE_AND_CLEAR_STR(field->value);
2711	if (last) last->next = field->next;	2511	last->next = field->next;
		2512	else
2712	else op->key_values = field->next;	2513	op->key_values = field->next;
		2514
2713	free(field);	2515	delete field;
2714	}	2516	}
2715	}	2517	}
2716	return TRUE;	2518	return TRUE;
2717	}	2519	}
2718	/* IF we get here, key doesn't exist */	2520	/* IF we get here, key doesn't exist */
2719		2521
2720	/* No field, we'll have to add it. */	2522	/* No field, we'll have to add it. */
2721		2523
2722	if (!add_key) {	2524	if (!add_key)
2723	return FALSE;	2525	return FALSE;
2724	}	2526
2725	/* There isn't any good reason to store a null	2527	/* There isn't any good reason to store a null
2726	* value in the key/value list. If the archetype has	2528	* value in the key/value list. If the archetype has
2727	* this key, then we should also have it, so shouldn't	2529	* this key, then we should also have it, so shouldn't
2728	* be here. If user wants to store empty strings,	2530	* be here. If user wants to store empty strings,
2729	* should pass in ""	2531	* should pass in ""
2730	*/	2532	*/
2731	if (value == NULL) return TRUE;	2533	if (value == NULL)
2732
2733	field = (key_value *) malloc(sizeof(key_value));
2734
2735	field->key = add_refcount(canonical_key);
2736	field->value = add_string(value);
2737	/* Usual prepend-addition. */
2738	field->next = op->key_values;
2739	op->key_values = field;
2740
2741	return TRUE;	2534	return TRUE;
		2535
		2536	field = new key_value;
		2537
		2538	field->key = canonical_key;
		2539	field->value = value;
		2540	/* Usual prepend-addition. */
		2541	field->next = op->key_values;
		2542	op->key_values = field;
		2543
		2544	return TRUE;
2742	}	2545	}
2743		2546
2744	/*	2547	/*
2745	* Updates the key in op to value.	2548	* Updates the key in op to value.
2746	*	2549	*
…		…
2748	* and not add new ones.	2551	* and not add new ones.
2749	* In general, should be little reason FALSE is ever passed in for add_key	2552	* In general, should be little reason FALSE is ever passed in for add_key
2750	*	2553	*
2751	* Returns TRUE on success.	2554	* Returns TRUE on success.
2752	*/	2555	*/
		2556	int
2753	int 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)
2754	const char * canonical_key = NULL;	2558	{
2755	int floating_ref = FALSE;	2559	shstr key_ (key);
2756	int ret;	2560
		2561	return set_ob_key_value_s (op, key_, value, add_key);
		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)
2757		2575	{
2758	/* HACK This mess is to make sure set_ob_value() passes a shared string	2576	item = item->below;
2759	* to get_ob_key_link(), without leaving a leaked refcount.	2577
2760	*/	2578	while (item->inv)
		2579	item = item->inv;
2761		2580	}
2762	canonical_key = find_string(key);	2581	else
2763	if (canonical_key == NULL) {	2582	item = item->env;
2764	canonical_key = add_string(key);	2583	}
2765	floating_ref = TRUE;	2584
2766	}	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++)
2767		2594	{
2768	ret = set_ob_key_value_s(op, canonical_key, value, add_key);	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	}
2769		2608	}
2770	if (floating_ref) {	2609
2771	free_string(canonical_key);	2610	return desc;
2772	}	2611	}
2773		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))
2774	return ret;	2658	return mt;
		2659
		2660	return name_to_material (shstr_unknown);
2775	}	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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