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Comparing deliantra/server/common/object.C (file contents):
Revision 1.7 by root, Tue Aug 29 05:03:54 2006 UTC vs.
Revision 1.160 by root, Tue Jun 5 13:05:02 2007 UTC

1	/*	1	/*
2	* static char *rcsid_object_c =	2	* This file is part of Crossfire TRT, the Multiplayer Online Role Playing Game.
3	* "$Id: object.C,v 1.7 2006/08/29 05:03:54 root Exp $";	3	*
4	*/	4	* Copyright (©) 2005,2006,2007 Marc Alexander Lehmann / Robin Redeker / the Crossfire TRT 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	* Crossfire TRT is free software; you can redistribute it and/or modify it
13	it under the terms of the GNU General Public License as published by	9	* under the terms of the GNU General Public License as published by the Free
14	the Free Software Foundation; either version 2 of the License, or	10	* Software Foundation; either version 2 of the License, or (at your option)
15	(at your option) any later version.	11	* 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, but
18	but WITHOUT ANY WARRANTY; without even the implied warranty of	14	* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
19	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the	15	* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
20	GNU General Public License for more details.	16	* 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 along
23	along with this program; if not, write to the Free Software	19	* with Crossfire TRT; if not, write to the Free Software Foundation, Inc. 51
24	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.	20	* Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
25		21	*
26	The authors can be reached via e-mail at crossfire-devel@real-time.com	22	* The authors can be reached via e-mail to <crossfire@schmorp.de>
27	*/	23	*/
28		24
29	/* Eneq(@csd.uu.se): Added weight-modifiers in environment of objects.	25	/* Eneq(@csd.uu.se): Added weight-modifiers in environment of objects.
30	sub/add_weight will transcend the environment updating the carrying	26	sub/add_weight will transcend the environment updating the carrying
31	variable. */	27	variable. */
32	#include <global.h>	28	#include <global.h>
33	#ifndef WIN32 /* ---win32 exclude headers */
34	#include <stdio.h>	29	#include <stdio.h>
35	#include <sys/types.h>	30	#include <sys/types.h>
36	#include <sys/uio.h>	31	#include <sys/uio.h>
37	#endif /* win32 */
38	#include <object.h>	32	#include <object.h>
39	#include <funcpoint.h>	33	#include <funcpoint.h>
40	#include <skills.h>	34	#include <sproto.h>
41	#include <loader.h>	35	#include <loader.h>
42	#ifdef MEMORY_DEBUG	36
43	int nroffreeobjects = 0;	37	#include <bitset>
		38
44	int nrofallocobjects = 0;	39	int nrofallocobjects = 0;
45	#undef OBJ_EXPAND	40	static UUID uuid;
46	#define OBJ_EXPAND 1	41	const uint64 UUID_SKIP = 1<<19;
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		42
53	object *objects; /* Pointer to the list of used objects */	43	objectvec objects;
54	object *free_objects; /* Pointer to the list of unused objects */	44	activevec actives;
55	object *active_objects; /* List of active objects that need to be processed */
56		45
57	short freearr_x[SIZEOFFREE]=	46	short freearr_x[SIZEOFFREE] = { 0, 0, 1, 1, 1, 0, -1, -1, -1, 0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2, -2, -2, -2, -1,
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,
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};	47	0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3, -3, -3, -3, -3, -2, -1
60	short freearr_y[SIZEOFFREE]=	48	};
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,	49	short freearr_y[SIZEOFFREE] = { 0, -1, -1, 0, 1, 1, 1, 0, -1, -2, -2, -2, -1, 0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2,
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};	50	-3, -3, -3, -3, -2, -1, 0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3
63	int maxfree[SIZEOFFREE]=	51	};
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,	52	int maxfree[SIZEOFFREE] = { 0, 9, 10, 13, 14, 17, 18, 21, 22, 25, 26, 27, 30, 31, 32, 33, 36, 37, 39, 39, 42, 43, 44, 45,
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};	53	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
		54	};
66	int freedir[SIZEOFFREE]= {	55	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,	56	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,
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};	57	1, 2, 2, 2, 2, 2, 3, 4, 4, 4, 4, 4, 5, 6, 6, 6, 6, 6, 7, 8, 8, 8, 8, 8
		58	};
69		59
		60	static void
		61	write_uuid (void)
		62	{
		63	char filename1[MAX_BUF], filename2[MAX_BUF];
		64
		65	sprintf (filename1, "%s/uuid", settings.localdir);
		66	sprintf (filename2, "%s/uuid~", settings.localdir);
		67
		68	FILE *fp;
		69
		70	if (!(fp = fopen (filename2, "w")))
		71	{
		72	LOG (llevError, "ERROR: cannot open %s for writing, unable to write UUID!\n", filename2);
		73	return;
		74	}
		75
		76	fprintf (fp, "<1,%llx>\n", (unsigned long long)uuid.seq + UUID_SKIP * 2);
		77	fclose (fp);
		78	rename (filename2, filename1);
		79	}
		80
		81	static void
		82	read_uuid (void)
		83	{
		84	char filename[MAX_BUF];
		85
		86	sprintf (filename, "%s/uuid", settings.localdir);
		87
		88	FILE *fp;
		89
		90	if (!(fp = fopen (filename, "r")))
		91	{
		92	if (errno == ENOENT)
		93	{
		94	LOG (llevInfo, "RESET uid to 1\n");
		95	uuid.seq = 0;
		96	write_uuid ();
		97	return;
		98	}
		99
		100	LOG (llevError, "FATAL: cannot open %s for reading!\n", filename);
		101	_exit (1);
		102	}
		103
		104	int version;
		105	unsigned long long uid;
		106	if (2 != fscanf (fp, "<%d,%llx>\n", &version, &uid) || version != 1)
		107	{
		108	LOG (llevError, "FATAL: error reading uid from %s!\n", filename);
		109	_exit (1);
		110	}
		111
		112	uuid.seq = uid;
		113	write_uuid ();
		114	LOG (llevDebug, "read UID: %" PRId64 "\n", uid);
		115	fclose (fp);
		116	}
		117
		118	UUID
		119	gen_uuid ()
		120	{
		121	UUID uid;
		122
		123	uid.seq = ++uuid.seq;
		124
		125	if (!(uuid.seq & (UUID_SKIP - 1)))
		126	write_uuid ();
		127
		128	return uid;
		129	}
		130
		131	void
		132	init_uuid ()
		133	{
		134	read_uuid ();
		135	}
70		136
71	/* Returns TRUE if every key_values in wants has a partner with the same value in has. */	137	/* Returns TRUE if every key_values in wants has a partner with the same value in has. */
		138	static int
72	static int compare_ob_value_lists_one(const object * wants, const object * has) {	139	compare_ob_value_lists_one (const object *wants, const object *has)
		140	{
73	key_value * wants_field;	141	key_value *wants_field;
74		142
75	/* n-squared behaviour (see get_ob_key_link()), but I'm hoping both	143	/* 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	144	* objects with lists are rare, and lists stay short. If not, use a
77	* different structure or at least keep the lists sorted...	145	* different structure or at least keep the lists sorted...
78	*/	146	*/
79		147
80	/* For each field in wants, */	148	/* For each field in wants, */
81	for (wants_field = wants->key_values; wants_field != NULL; wants_field = wants_field->next) {	149	for (wants_field = wants->key_values; wants_field; wants_field = wants_field->next)
		150	{
82	key_value * has_field;	151	key_value *has_field;
83		152
84	/* Look for a field in has with the same key. */	153	/* Look for a field in has with the same key. */
85	has_field = get_ob_key_link(has, wants_field->key);	154	has_field = get_ob_key_link (has, wants_field->key);
		155
		156	if (has_field == NULL)
86		157	{
87	if (has_field == NULL) {
88	/* No field with that name. */	158	/* No field with that name. */
89	return FALSE;	159	return FALSE;
90	}	160	}
91		161
92	/* Found the matching field. */	162	/* Found the matching field. */
93	if (has_field->value != wants_field->value) {	163	if (has_field->value != wants_field->value)
		164	{
94	/* Values don't match, so this half of the comparison is false. */	165	/* Values don't match, so this half of the comparison is false. */
95	return FALSE;	166	return FALSE;
96	}	167	}
97		168
98	/* If we get here, we found a match. Now for the next field in wants. */	169	/* If we get here, we found a match. Now for the next field in wants. */
99	}
100		170	}
		171
101	/* If we get here, every field in wants has a matching field in has. */	172	/* If we get here, every field in wants has a matching field in has. */
102	return TRUE;	173	return TRUE;
103	}	174	}
104		175
105	/* Returns TRUE if ob1 has the same key_values as ob2. */	176	/* Returns TRUE if ob1 has the same key_values as ob2. */
		177	static int
106	static int compare_ob_value_lists(const object * ob1, const object * ob2) {	178	compare_ob_value_lists (const object *ob1, const object *ob2)
		179	{
107	/* However, there may be fields in has which aren't partnered in wants,	180	/* However, there may be fields in has which aren't partnered in wants,
108	* so we need to run the comparison *twice*. :(	181	* so we need to run the comparison *twice*. :(
109	*/	182	*/
110	return compare_ob_value_lists_one(ob1, ob2) && compare_ob_value_lists_one(ob2, ob1);	183	return compare_ob_value_lists_one (ob1, ob2) && compare_ob_value_lists_one (ob2, ob1);
111	}	184	}
112		185
113	/* Function examines the 2 objects given to it, and returns true if	186	/* Function examines the 2 objects given to it, and returns true if
114	* they can be merged together.	187	* they can be merged together.
115	*	188	*
116	* Note that this function appears a lot longer than the macro it	189	* Note that this function appears a lot longer than the macro it
117	* replaces - this is mostly for clarity - a decent compiler should hopefully	190	* replaces - this is mostly for clarity - a decent compiler should hopefully
118	* reduce this to the same efficiency.	191	* reduce this to the same efficiency.
119	*	192	*
120	* Check nrof variable *before* calling CAN_MERGE()	193	* Check nrof variable *before* calling can_merge()
121	*	194	*
122	* Improvements made with merge: Better checking on potion, and also	195	* Improvements made with merge: Better checking on potion, and also
123	* check weight	196	* check weight
124	*/	197	*/
125		198	bool object::can_merge_slow (object *ob1, object *ob2)
126	int CAN_MERGE(object *ob1, object *ob2) {	199	{
127
128	/* A couple quicksanity checks */	200	/* A couple quicksanity checks */
129	if ((ob1 == ob2) || (ob1->type != ob2->type)) return 0;	201	if (ob1 == ob2
130		202	|| ob1->type != ob2->type
131	if (ob1->speed != ob2->speed) return 0;	203	|| ob1->speed != ob2->speed
132	/* Note sure why the following is the case - either the object has to	204	|| ob1->value != ob2->value
133	* be animated or have a very low speed. Is this an attempted monster	205	|| ob1->name != ob2->name)
134	* check?
135	*/
136	if (!QUERY_FLAG(ob1,FLAG_ANIMATE) && FABS((ob1)->speed) > MIN_ACTIVE_SPEED)
137	return 0;	206	return 0;
138		207
		208	//TODO: this ain't working well, use nicer and correct overflow check
139	/* Do not merge objects if nrof would overflow. We use 1UL<<31 since that	209	/* 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	210	* value could not be stored in a sint32 (which unfortunately sometimes is
141	* used to store nrof).	211	* used to store nrof).
142	*/	212	*/
143	if (ob1->nrof+ob2->nrof >= 1UL<<31)	213	if (ob1->nrof + ob2->nrof >= 1UL << 31)
144	return 0;	214	return 0;
145		215
146	/* This is really a spellbook check - really, we should
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	}
160
161	/* If the objects have been identified, set the BEEN_APPLIED flag.	216	/* If the objects have been identified, set the BEEN_APPLIED flag.
162	* This is to the comparison of the flags below will be OK. We	217	* 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	218	* 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	219	* are not equal - just if it has been identified, the been_applied
165	* flags lose any meaning.	220	* flags lose any meaning.
166	*/	221	*/
167	if (QUERY_FLAG(ob1, FLAG_IDENTIFIED))	222	if (QUERY_FLAG (ob1, FLAG_IDENTIFIED))
168	SET_FLAG(ob1, FLAG_BEEN_APPLIED);	223	SET_FLAG (ob1, FLAG_BEEN_APPLIED);
169		224
170	if (QUERY_FLAG(ob2, FLAG_IDENTIFIED))	225	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))
171	SET_FLAG(ob2, FLAG_BEEN_APPLIED);	226	SET_FLAG (ob2, FLAG_BEEN_APPLIED);
172		227
173		228	if ((ob1->flag ^ ob2->flag).reset (FLAG_INV_LOCKED).reset (FLAG_CLIENT_SENT).any ()
174	/* the 0x400000 on flags2 is FLAG_INV_LOCK. I don't think something	229	|| ob1->arch != ob2->arch
175	* being locked in inventory should prevent merging.	230	|| ob1->name != ob2->name
176	* 0x4 in flags3 is CLIENT_SENT	231	|| ob1->title != ob2->title
177	*/	232	|| ob1->msg != ob2->msg
178	if ((ob1->arch != ob2->arch) ||	233	|| ob1->weight != ob2->weight
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) ||	234	|| memcmp (&ob1->resist, &ob2->resist, sizeof (ob1->resist))
188	(memcmp(&ob1->stats, &ob2->stats, sizeof(ob1->stats))!=0) ||	235	|| memcmp (&ob1->stats , &ob2->stats , sizeof (ob1->stats) )
189	(ob1->attacktype != ob2->attacktype) ||	236	|| ob1->attacktype != ob2->attacktype
190	(ob1->magic != ob2->magic) ||	237	|| ob1->magic != ob2->magic
191	(ob1->slaying != ob2->slaying) ||	238	|| ob1->slaying != ob2->slaying
192	(ob1->skill != ob2->skill) ||	239	|| ob1->skill != ob2->skill
193	(ob1->value != ob2->value) ||	240	|| ob1->value != ob2->value
194	(ob1->animation_id != ob2->animation_id) ||	241	|| ob1->animation_id != ob2->animation_id
195	(ob1->client_type != ob2->client_type) ||	242	|| ob1->client_type != ob2->client_type
196	(ob1->materialname != ob2->materialname) ||	243	|| ob1->materialname != ob2->materialname
197	(ob1->lore != ob2->lore) ||	244	|| ob1->lore != ob2->lore
198	(ob1->subtype != ob2->subtype) ||	245	|| ob1->subtype != ob2->subtype
199	(ob1->move_type != ob2->move_type) ||	246	|| ob1->move_type != ob2->move_type
200	(ob1->move_block != ob2->move_block) ||	247	|| ob1->move_block != ob2->move_block
201	(ob1->move_allow != ob2->move_allow) ||	248	|| ob1->move_allow != ob2->move_allow
202	(ob1->move_on != ob2->move_on) ||	249	|| ob1->move_on != ob2->move_on
203	(ob1->move_off != ob2->move_off) ||	250	|| ob1->move_off != ob2->move_off
204	(ob1->move_slow != ob2->move_slow) ||	251	|| ob1->move_slow != ob2->move_slow
205	(ob1->move_slow_penalty != ob2->move_slow_penalty)	252	|| ob1->move_slow_penalty != ob2->move_slow_penalty)
206	)
207	return 0;	253	return 0;
208		254
		255	/* This is really a spellbook check - really, we should
		256	* check all objects in the inventory.
		257	*/
		258	if (ob1->inv || ob2->inv)
		259	{
		260	/* if one object has inventory but the other doesn't, not equiv */
		261	if ((ob1->inv && !ob2->inv) || (ob2->inv && !ob1->inv))
		262	return 0;
		263
		264	/* Now check to see if the two inventory objects could merge */
		265	if (!object::can_merge (ob1->inv, ob2->inv))
		266	return 0;
		267
		268	/* inventory ok - still need to check rest of this object to see
		269	* if it is valid.
		270	*/
		271	}
		272
209	/* Don't merge objects that are applied. With the new 'body' code,	273	/* 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	274	* 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.	275	* some items equipped, and we don't want those to merge.
212	*/	276	*/
213	if (QUERY_FLAG(ob1, FLAG_APPLIED) || QUERY_FLAG(ob2, FLAG_APPLIED))	277	if (QUERY_FLAG (ob1, FLAG_APPLIED) || QUERY_FLAG (ob2, FLAG_APPLIED))
214	return 0;	278	return 0;
215		279
		280	/* Note sure why the following is the case - either the object has to
		281	* be animated or have a very low speed. Is this an attempted monster
		282	* check?
		283	*/
		284	if (!QUERY_FLAG (ob1, FLAG_ANIMATE) && ob1->has_active_speed ())
		285	return 0;
		286
216	switch (ob1->type) {	287	switch (ob1->type)
		288	{
217	case SCROLL:	289	case SCROLL:
218	if (ob1->level != ob2->level) return 0;	290	if (ob1->level != ob2->level)
		291	return 0;
219	break;	292	break;
220
221	}	293	}
		294
222	if (ob1->key_values != NULL || ob2->key_values != NULL) {	295	if (ob1->key_values != NULL || ob2->key_values != NULL)
		296	{
223	/* At least one of these has key_values. */	297	/* At least one of these has key_values. */
224	if ((ob1->key_values == NULL) != (ob2->key_values == NULL)) {	298	if ((ob1->key_values == NULL) != (ob2->key_values == NULL))
225	/* One has fields, but the other one doesn't. */	299	/* One has fields, but the other one doesn't. */
226	return 0;	300	return 0;
227	} else if (!compare_ob_value_lists(ob1, ob2)) {	301	else if (!compare_ob_value_lists (ob1, ob2))
228	return 0;	302	return 0;
229	}	303	}
		304
		305	//TODO: generate an event or call into perl for additional checks
		306	if (ob1->self || ob2->self)
230	}	307	{
		308	ob1->optimise ();
		309	ob2->optimise ();
231		310
		311	if (ob1->self || ob2->self)
		312	return 0;
		313	}
		314
232	/* Everything passes, must be OK. */	315	/* Everything passes, must be OK. */
233	return 1;	316	return 1;
234	}	317	}
235		318
236	/*	319	/*
237	* sum_weight() is a recursive function which calculates the weight	320	* sum_weight() is a recursive function which calculates the weight
238	* an object is carrying. It goes through in figures out how much	321	* an object is carrying. It goes through in figures out how much
239	* containers are carrying, and sums it up.	322	* containers are carrying, and sums it up.
240	*/	323	*/
241	signed long sum_weight(object *op) {	324	long
		325	sum_weight (object *op)
		326	{
242	signed long sum;	327	long sum;
243	object *inv;	328	object *inv;
		329
244	for(sum = 0, inv = op->inv; inv != NULL; inv = inv->below) {	330	for (sum = 0, inv = op->inv; inv; inv = inv->below)
		331	{
245	if (inv->inv)	332	if (inv->inv)
246	sum_weight(inv);	333	sum_weight (inv);
		334
247	sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1);	335	sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1);
248	}	336	}
		337
249	if (op->type == CONTAINER && op->stats.Str)	338	if (op->type == CONTAINER && op->stats.Str)
250	sum = (sum * (100 - op->stats.Str))/100;	339	sum = (sum * (100 - op->stats.Str)) / 100;
		340
251	if(op->carrying != sum)	341	if (op->carrying != sum)
252	op->carrying = sum;	342	op->carrying = sum;
		343
253	return sum;	344	return sum;
254	}	345	}
255		346
256	/**	347	/**
257	* Return the outermost environment object for a given object.	348	* Return the outermost environment object for a given object.
258	*/	349	*/
259		350
		351	object *
260	object *object_get_env_recursive (object *op) {	352	object_get_env_recursive (object *op)
		353	{
261	while (op->env != NULL)	354	while (op->env != NULL)
262	op = op->env;	355	op = op->env;
263	return op;	356	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	}	357	}
278		358
279	/*	359	/*
280	* Used by: Crossedit: dump. Server DM commands: dumpbelow, dump.	360	* Used by: Crossedit: dump. Server DM commands: dumpbelow, dump.
281	* Some error messages.	361	* Some error messages.
282	* The result of the dump is stored in the static global errmsg array.	362	* The result of the dump is stored in the static global errmsg array.
283	*/	363	*/
284		364	char *
285	void dump_object2(object *op) {
286	char *cp;
287	/* object *tmp;*/
288
289	if(op->arch!=NULL) {
290	strcat(errmsg,"arch ");
291	strcat(errmsg,op->arch->name?op->arch->name:"(null)");
292	strcat(errmsg,"\n");
293	if((cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)
294	strcat(errmsg,cp);
295	#if 0
296	/* Don't dump player diffs - they are too long, mostly meaningless, and
297	* will overflow the buffer.
298	* Changed so that we don't dump inventory either. This may
299	* also overflow the buffer.
300	*/
301	if(op->type!=PLAYER && (cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)
302	strcat(errmsg,cp);
303	for (tmp=op->inv; tmp; tmp=tmp->below)
304	dump_object2(tmp);
305	#endif
306	strcat(errmsg,"end\n");
307	} else {
308	strcat(errmsg,"Object ");
309	if (op->name==NULL) strcat(errmsg, "(null)");
310	else strcat(errmsg,op->name);
311	strcat(errmsg,"\n");
312	#if 0
313	if((cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)
314	strcat(errmsg,cp);
315	for (tmp=op->inv; tmp; tmp=tmp->below)
316	dump_object2(tmp);
317	#endif
318	strcat(errmsg,"end\n");
319	}
320	}
321
322	/*
323	* Dumps an object. Returns output in the static global errmsg array.
324	*/
325
326	void dump_object(object *op) {	365	dump_object (object *op)
327	if(op==NULL) {
328	strcpy(errmsg,"[NULL pointer]");
329	return;
330	}
331	errmsg[0]='\0';
332	dump_object2(op);
333	}
334
335	/* GROS - Dumps an object. Return the result into a string */
336	/* Note that no checking is done for the validity of the target string, so */
337	/* you need to be sure that you allocated enough space for it. */
338	void dump_me(object *op, char *outstr)
339	{	366	{
340	char *cp;	367	if (!op)
		368	return strdup ("[NULLOBJ]");
341		369
342	if(op==NULL)	370	object_freezer freezer;
343	{	371	op->write (freezer);
344	strcpy(outstr,"[NULL pointer]");	372	return freezer.as_string ();
345	return;
346	}
347	outstr[0]='\0';
348
349	if(op->arch!=NULL)
350	{
351	strcat(outstr,"arch ");
352	strcat(outstr,op->arch->name?op->arch->name:"(null)");
353	strcat(outstr,"\n");
354	if((cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)
355	strcat(outstr,cp);
356	strcat(outstr,"end\n");
357	}
358	else
359	{
360	strcat(outstr,"Object ");
361	if (op->name==NULL)
362	strcat(outstr, "(null)");
363	else
364	strcat(outstr,op->name);
365	strcat(outstr,"\n");
366	strcat(outstr,"end\n");
367	}
368	}
369
370	/*
371	* This is really verbose...Can be triggered by the P key while in DM mode.
372	* All objects are dumped to stderr (or alternate logfile, if in server-mode)
373	*/
374
375	void dump_all_objects(void) {
376	object *op;
377	for(op=objects;op!=NULL;op=op->next) {
378	dump_object(op);
379	fprintf(logfile, "Object %d\n:%s\n", op->count, errmsg);
380	}
381	}	373	}
382		374
383	/*	375	/*
384	* get_nearest_part(multi-object, object 2) returns the part of the	376	* get_nearest_part(multi-object, object 2) returns the part of the
385	* multi-object 1 which is closest to the second object.	377	* multi-object 1 which is closest to the second object.
386	* If it's not a multi-object, it is returned.	378	* If it's not a multi-object, it is returned.
387	*/	379	*/
388		380
		381	object *
389	object *get_nearest_part(object *op, const object *pl) {	382	get_nearest_part (object *op, const object *pl)
		383	{
390	object *tmp,*closest;	384	object *tmp, *closest;
391	int last_dist,i;	385	int last_dist, i;
		386
392	if(op->more==NULL)	387	if (op->more == NULL)
393	return op;	388	return op;
394	for(last_dist=distance(op,pl),closest=op,tmp=op->more;tmp!=NULL;tmp=tmp->more)	389	for (last_dist = distance (op, pl), closest = op, tmp = op->more; tmp != NULL; tmp = tmp->more)
395	if((i=distance(tmp,pl))<last_dist)	390	if ((i = distance (tmp, pl)) < last_dist)
396	closest=tmp,last_dist=i;	391	closest = tmp, last_dist = i;
397	return closest;	392	return closest;
398	}	393	}
399		394
400	/*	395	/*
401	* Returns the object which has the count-variable equal to the argument.	396	* Returns the object which has the count-variable equal to the argument.
402	*/	397	*/
403		398	object *
404	object *find_object(tag_t i) {	399	find_object (tag_t i)
405	object *op;	400	{
406	for(op=objects;op!=NULL;op=op->next)	401	for_all_objects (op)
407	if(op->count==i)	402	if (op->count == i)
408	break;
409	return op;	403	return op;
		404
		405	return 0;
410	}	406	}
411		407
412	/*	408	/*
413	* Returns the first object which has a name equal to the argument.	409	* Returns the first object which has a name equal to the argument.
414	* Used only by the patch command, but not all that useful.	410	* Used only by the patch command, but not all that useful.
415	* Enables features like "patch <name-of-other-player> food 999"	411	* Enables features like "patch <name-of-other-player> food 999"
416	*/	412	*/
417		413	object *
418	object *find_object_name(const char *str) {	414	find_object_name (const char *str)
419	const char *name=add_string(str);	415	{
		416	shstr_cmp str_ (str);
420	object *op;	417	object *op;
421	for(op=objects;op!=NULL;op=op->next)	418
		419	for_all_objects (op)
422	if(op->name==name)	420	if (op->name == str_)
423	break;	421	break;
424	free_string(name);	422
425	return op;	423	return op;
426	}	424	}
427		425
		426	void
428	void free_all_object_data(void) {	427	free_all_object_data ()
429	#ifdef MEMORY_DEBUG
430	object *op, *next;
431
432	for (op=free_objects; op!=NULL; ) {
433	next=op->next;
434	free(op);
435	nrofallocobjects--;
436	nroffreeobjects--;
437	op=next;
438	}
439	#endif
440	LOG(llevDebug,"%d allocated objects, %d free objects, STARMAX=%d\n",
441	nrofallocobjects, nroffreeobjects,STARTMAX);
442	}
443
444	/*
445	* Returns the object which this object marks as being the owner.
446	* A id-scheme is used to avoid pointing to objects which have been
447	* freed and are now reused. If this is detected, the owner is
448	* set to NULL, and NULL is returned.
449	* Changed 2004-02-12 - if the player is setting at the play again
450	* prompt, he is removed, and we don't want to treat him as an owner of
451	* anything, so check removed flag. I don't expect that this should break
452	* anything - once an object is removed, it is basically dead anyways.
453	*/
454
455	object *get_owner(object *op) {
456	if(op->owner==NULL)
457	return NULL;
458
459	if (!QUERY_FLAG(op->owner,FLAG_FREED) && !QUERY_FLAG(op->owner, FLAG_REMOVED) &&
460	op->owner->count==op->ownercount)
461	return op->owner;
462
463	op->owner=NULL;
464	op->ownercount=0;
465	return NULL;
466	}
467
468	void clear_owner(object *op)
469	{	428	{
470	if (!op) return;	429	LOG (llevDebug, "%d allocated objects\n", nrofallocobjects);
471
472	if (op->owner && op->ownercount == op->owner->count)
473	op->owner->refcount--;
474
475	op->owner = NULL;
476	op->ownercount = 0;
477	}	430	}
478
479
480		431
481	/*	432	/*
482	* Sets the owner and sets the skill and exp pointers to owner's current	433	* Sets the owner and sets the skill and exp pointers to owner's current
483	* skill and experience objects.	434	* skill and experience objects.
484	*/	435	*/
485	void set_owner (object *op, object *owner)	436	void
		437	object::set_owner (object *owner)
486	{	438	{
487	if(owner==NULL||op==NULL)	439	if (!owner)
488	return;	440	return;
489		441
490	/* next line added to allow objects which own objects */	442	/* next line added to allow objects which own objects */
491	/* Add a check for ownercounts in here, as I got into an endless loop	443	/* Add a check for ownercounts in here, as I got into an endless loop
492	* with the fireball owning a poison cloud which then owned the	444	* with the fireball owning a poison cloud which then owned the
493	* fireball. I believe that was caused by one of the objects getting	445	* fireball. I believe that was caused by one of the objects getting
494	* freed and then another object replacing it. Since the ownercounts	446	* freed and then another object replacing it. Since the ownercounts
495	* didn't match, this check is valid and I believe that cause is valid.	447	* didn't match, this check is valid and I believe that cause is valid.
496	*/	448	*/
497	while (owner->owner && owner!=owner->owner &&	449	while (owner->owner)
498	owner->ownercount==owner->owner->count) owner=owner->owner;	450	owner = owner->owner;
499		451
500	/* IF the owner still has an owner, we did not resolve to a final owner.
501	* so lets not add to that.
502	*/
503	if (owner->owner) return;
504
505	op->owner=owner;	452	this->owner = owner;
506
507	op->ownercount=owner->count;
508	owner->refcount++;
509
510	}	453	}
511		454
512	/* Set the owner to clone's current owner and set the skill and experience	455	int
513	* objects to clone's objects (typically those objects that where the owner's	456	object::slottype () const
514	* current skill and experience objects at the time when clone's owner was
515	* set - not the owner's current skill and experience objects).
516	*
517	* Use this function if player created an object (e.g. fire bullet, swarm
518	* spell), and this object creates further objects whose kills should be
519	* accounted for the player's original skill, even if player has changed
520	* skills meanwhile.
521	*/
522	void copy_owner (object *op, object *clone)
523	{	457	{
524	object *owner = get_owner (clone);	458	if (type == SKILL)
525	if (owner == NULL) {
526	/* players don't have owners - they own themselves. Update
527	* as appropriate.
528	*/
529	if (clone->type == PLAYER) owner=clone;
530	else return;
531	}	459	{
532	set_owner(op, owner);	460	if (IS_COMBAT_SKILL (subtype)) return slot_combat;
533		461	if (IS_RANGED_SKILL (subtype)) return slot_ranged;
		462	}
		463	else
		464	{
		465	if (slot [body_combat].info) return slot_combat;
		466	if (slot [body_range ].info) return slot_ranged;
		467	}
		468
		469	return slot_none;
534	}	470	}
535		471
536	/*	472	bool
537	* Resets vital variables in an object	473	object::change_weapon (object *ob)
538	*/	474	{
		475	if (current_weapon == ob)
		476	return true;
539		477
540	void reset_object(object *op) {	478	if (chosen_skill)
		479	chosen_skill->flag [FLAG_APPLIED] = false;
541		480
542	op->name = NULL;	481	current_weapon = ob;
543	op->name_pl = NULL;	482	chosen_skill = !ob || ob->type == SKILL ? ob : find_skill_by_name (this, ob->skill);
544	op->title = NULL;	483
545	op->race = NULL;	484	if (chosen_skill)
546	op->slaying = NULL;	485	chosen_skill->flag [FLAG_APPLIED] = true;
547	op->skill = NULL;	486
548	op->msg = NULL;	487	update_stats ();
549	op->materialname = NULL;	488
550	op->lore = NULL;	489	if (ob)
551	clear_object(op);	490	{
		491	// now check wether any body locations became invalid, in which case
		492	// we cannot apply the weapon at the moment.
		493	for (int i = 0; i < NUM_BODY_LOCATIONS; ++i)
		494	if (slot[i].used < 0)
		495	{
		496	current_weapon = chosen_skill = 0;
		497	update_stats ();
		498
		499	new_draw_info_format (NDI_UNIQUE, 0, this,
		500	"You try to balance all your items at once, "
		501	"but the %s is just too much for your body. "
		502	"[You need to unapply some items first.]", &ob->name);
		503	return false;
		504	}
		505
		506	//new_draw_info_format (NDI_UNIQUE, 0, this, "You switch to your %s.", &ob->name);
		507	}
		508	else
		509	;//new_draw_info_format (NDI_UNIQUE, 0, this, "You unwield your weapons.");
		510
		511	if (ob && !ob->flag [FLAG_APPLIED] && ob->type != SPELL)
		512	{
		513	LOG (llevError | logBacktrace, "%s changed to unapplied weapon %s",
		514	&name, ob->debug_desc ());
		515	return false;
		516	}
		517
		518	return true;
552	}	519	}
553		520
554	/* Zero the key_values on op, decrementing the shared-string	521	/* Zero the key_values on op, decrementing the shared-string
555	* refcounts and freeing the links.	522	* refcounts and freeing the links.
556	*/	523	*/
		524	static void
557	static void free_key_values(object * op) {	525	free_key_values (object *op)
558	key_value * i;	526	{
559	key_value * next = NULL;	527	for (key_value *i = op->key_values; i; )
560		528	{
561	if (op->key_values == NULL) return;	529	key_value *next = i->next;
		530	delete i;
		531
		532	i = next;
562		533	}
563	for (i = op->key_values; i != NULL; i = next) {	534
564	/* Store next *first*. */	535	op->key_values = 0;
565	next = i->next;	536	}
		537
		538	object &
		539	object::operator =(const object &src)
		540	{
		541	bool is_freed = flag [FLAG_FREED];
		542	bool is_removed = flag [FLAG_REMOVED];
		543
		544	*(object_copy *)this = src;
		545
		546	flag [FLAG_FREED] = is_freed;
		547	flag [FLAG_REMOVED] = is_removed;
		548
		549	/* Copy over key_values, if any. */
		550	if (src.key_values)
		551	{
		552	key_value *tail = 0;
		553	key_values = 0;
		554
		555	for (key_value *i = src.key_values; i; i = i->next)
566		556	{
567	if (i->key) FREE_AND_CLEAR_STR(i->key);	557	key_value *new_link = new key_value;
568	if (i->value) FREE_AND_CLEAR_STR(i->value);	558
569	i->next = NULL;	559	new_link->next = 0;
570	free(i);	560	new_link->key = i->key;
571	}	561	new_link->value = i->value;
		562
		563	/* Try and be clever here, too. */
		564	if (!key_values)
		565	{
		566	key_values = new_link;
		567	tail = new_link;
		568	}
		569	else
		570	{
		571	tail->next = new_link;
		572	tail = new_link;
		573	}
		574	}
572		575	}
573	op->key_values = NULL;
574	}	576	}
575		577
576
577	/*	578	/*
578	* clear_object() frees everything allocated by an object, and also
579	* clears all variables and flags to default settings.
580	*/
581
582	void clear_object(object *op) {
583	op->clear ();
584
585	event *evt;
586	event *evt2;
587
588	/* redo this to be simpler/more efficient. Was also seeing
589	* crashes in the old code. Move this to the top - am
590	* seeing periodic crashes in this code, and would like to have
591	* as much info available as possible (eg, object name).
592	*/
593	for (evt = op->events; evt; evt=evt2) {
594	evt2 = evt->next;
595
596	if (evt->hook != NULL) FREE_AND_CLEAR_STR(evt->hook);
597	if (evt->plugin != NULL) FREE_AND_CLEAR_STR(evt->plugin);
598	if (evt->options != NULL) FREE_AND_CLEAR_STR(evt->options);
599
600	free(evt);
601	}
602	op->events = NULL;
603
604	free_key_values(op);
605
606	/* the memset will clear all these values for us, but we need
607	* to reduce the refcount on them.
608	*/
609	if (op->name!=NULL) FREE_AND_CLEAR_STR(op->name);
610	if (op->name_pl!=NULL) FREE_AND_CLEAR_STR(op->name_pl);
611	if (op->title != NULL) FREE_AND_CLEAR_STR(op->title);
612	if (op->race!=NULL) FREE_AND_CLEAR_STR(op->race);
613	if (op->slaying!=NULL) FREE_AND_CLEAR_STR(op->slaying);
614	if (op->skill!=NULL) FREE_AND_CLEAR_STR(op->skill);
615	if (op->msg!=NULL) FREE_AND_CLEAR_STR(op->msg);
616	if (op->lore!=NULL) FREE_AND_CLEAR_STR(op->lore);
617	if (op->materialname!= NULL) FREE_AND_CLEAR_STR(op->materialname);
618
619
620	memset((void*)op, 0, sizeof (object_special));
621	/* Below here, we clear things that are not done by the memset,
622	* or set default values that are not zero.
623	*/
624	/* This is more or less true */
625	SET_FLAG(op, FLAG_REMOVED);
626
627
628	op->contr = NULL;
629	op->below=NULL;
630	op->above=NULL;
631	op->inv=NULL;
632	op->events=NULL;
633	op->container=NULL;
634	op->env=NULL;
635	op->more=NULL;
636	op->head=NULL;
637	op->map=NULL;
638	op->refcount=0;
639	op->active_next = NULL;
640	op->active_prev = NULL;
641	/* What is not cleared is next, prev, and count */
642
643	op->expmul=1.0;
644	op->face = blank_face;
645	op->attacked_by_count = (tag_t) -1;
646	if (settings.casting_time)
647	op->casting_time = -1;
648
649	}
650
651	/*
652	* copy object first frees everything allocated by the second object,	579	* copy_to first frees everything allocated by the dst object,
653	* and then copies the contends of the first object into the second	580	* and then copies the contents of itself into the second
654	* object, allocating what needs to be allocated. Basically, any	581	* object, allocating what needs to be allocated. Basically, any
655	* data that is malloc'd needs to be re-malloc/copied. Otherwise,	582	* data that is malloc'd needs to be re-malloc/copied. Otherwise,
656	* if the first object is freed, the pointers in the new object	583	* if the first object is freed, the pointers in the new object
657	* will point at garbage.	584	* will point at garbage.
658	*/	585	*/
		586	void
		587	object::copy_to (object *dst)
		588	{
		589	*dst = *this;
659		590
660	void copy_object(object *op2, object *op) {	591	if (speed < 0)
661	int is_freed=QUERY_FLAG(op,FLAG_FREED),is_removed=QUERY_FLAG(op,FLAG_REMOVED);	592	dst->speed_left = speed_left - rndm ();
662	event *evt, *evt2, *evt_new;
663		593
664	op->clear ();	594	dst->set_speed (dst->speed);
665
666	/* Decrement the refcounts, but don't bother zeroing the fields;
667	they'll be overwritten by memcpy. */
668	if(op->name!=NULL) free_string(op->name);
669	if(op->name_pl!=NULL) free_string(op->name_pl);
670	if(op->title!=NULL) free_string(op->title);
671	if(op->race!=NULL) free_string(op->race);
672	if(op->slaying!=NULL) free_string(op->slaying);
673	if(op->skill!=NULL) free_string(op->skill);
674	if(op->msg!=NULL) free_string(op->msg);
675	if(op->lore!=NULL) free_string(op->lore);
676	if(op->materialname != NULL) free_string(op->materialname);
677	if(op->custom_name != NULL) free_string(op->custom_name);
678
679	/* Basically, same code as from clear_object() */
680	for (evt = op->events; evt; evt=evt2) {
681	evt2 = evt->next;
682
683	if (evt->hook != NULL) FREE_AND_CLEAR_STR(evt->hook);
684	if (evt->plugin != NULL) FREE_AND_CLEAR_STR(evt->plugin);
685	if (evt->options != NULL) FREE_AND_CLEAR_STR(evt->options);
686
687	free(evt);
688	}
689	op->events = NULL;
690
691	free_key_values(op);
692
693	*(object_special *)op = *(object_special *)op2;
694	op2->clone (op);
695
696	if(is_freed) SET_FLAG(op,FLAG_FREED);
697	if(is_removed) SET_FLAG(op,FLAG_REMOVED);
698	if(op->name!=NULL) add_refcount(op->name);
699	if(op->name_pl!=NULL) add_refcount(op->name_pl);
700	if(op->title!=NULL) add_refcount(op->title);
701	if(op->race!=NULL) add_refcount(op->race);
702	if(op->slaying!=NULL) add_refcount(op->slaying);
703	if(op->skill!=NULL) add_refcount(op->skill);
704	if(op->lore!=NULL) add_refcount(op->lore);
705	if(op->msg!=NULL) add_refcount(op->msg);
706	if(op->custom_name!=NULL) add_refcount(op->custom_name);
707	if (op->materialname != NULL) add_refcount(op->materialname);
708
709	if((op2->speed<0) && !editor)
710	op->speed_left=op2->speed_left-RANDOM()%200/100.0;
711
712	/* Copy over event information */
713	evt2 = NULL;
714	for (evt = op2->events; evt; evt=evt->next) {
715	evt_new = (event *) malloc(sizeof(event));
716	memcpy(evt_new, evt, sizeof(event));
717	if (evt_new->hook) add_refcount(evt_new->hook);
718	if (evt_new->plugin) add_refcount(evt_new->plugin);
719	if (evt_new->options) add_refcount(evt_new->options);
720	evt_new->next = NULL;
721
722	/* Try to be a little clever here, and store away the
723	* last event we copied, so that its simpler to update the
724	* pointer.
725	*/
726	if (evt2)
727	evt2->next = evt_new;
728	else
729	op->events = evt_new;
730
731	evt2 = evt_new;
732	}
733	/* Copy over key_values, if any. */
734	if (op2->key_values != NULL) {
735	key_value * tail = NULL;
736	key_value * i;
737
738	op->key_values = NULL;
739
740	for (i = op2->key_values; i != NULL; i = i->next) {
741	key_value * new_link = (key_value *) malloc(sizeof(key_value));
742
743	new_link->next = NULL;
744	new_link->key = add_refcount(i->key);
745	if (i->value)
746	new_link->value = add_refcount(i->value);
747	else
748	new_link->value = NULL;
749
750	/* Try and be clever here, too. */
751	if (op->key_values == NULL) {
752	op->key_values = new_link;
753	tail = new_link;
754	} else {
755	tail->next = new_link;
756	tail = new_link;
757	}
758	}
759	}
760
761	update_ob_speed(op);
762	}	595	}
763		596
764	/*	597	void
765	* expand_objects() allocates more objects for the list of unused objects.	598	object::instantiate ()
766	* It is called from get_object() if the unused list is empty.	599	{
767	*/	600	if (!uuid.seq) // HACK
		601	uuid = gen_uuid ();
768		602
769	void expand_objects(void) {	603	speed_left = -0.1f;
770	int i;	604	/* copy the body_info to the body_used - this is only really
771	object *obj;	605	* need for monsters, but doesn't hurt to do it for everything.
772	obj = (object *) CALLOC(OBJ_EXPAND,sizeof(object));	606	* by doing so, when a monster is created, it has good starting
773		607	* values for the body_used info, so when items are created
774	if(obj==NULL)	608	* for it, they can be properly equipped.
775	fatal(OUT_OF_MEMORY);
776	free_objects=obj;
777	obj[0].prev=NULL;
778	obj[0].next= &obj[1],
779	SET_FLAG(&(obj[0]), FLAG_REMOVED);
780	SET_FLAG(&(obj[0]), FLAG_FREED);
781
782	for(i=1;i<OBJ_EXPAND-1;i++) {
783	obj[i].next= &obj[i+1],
784	obj[i].prev= &obj[i-1],
785	SET_FLAG(&(obj[i]), FLAG_REMOVED);
786	SET_FLAG(&(obj[i]), FLAG_FREED);
787	}
788	obj[OBJ_EXPAND-1].prev= &obj[OBJ_EXPAND-2],
789	obj[OBJ_EXPAND-1].next=NULL,
790	SET_FLAG(&(obj[OBJ_EXPAND-1]), FLAG_REMOVED);
791	SET_FLAG(&(obj[OBJ_EXPAND-1]), FLAG_FREED);
792
793	nrofallocobjects += OBJ_EXPAND;
794	nroffreeobjects += OBJ_EXPAND;
795	}
796
797	/*
798	* get_object() grabs an object from the list of unused objects, makes
799	* sure it is initialised, and returns it.
800	* If there are no free objects, expand_objects() is called to get more.
801	*/
802
803	object *get_object(void) {
804	object *op;
805
806	if(free_objects==NULL) {
807	expand_objects();
808	}
809	op=free_objects;
810	#ifdef MEMORY_DEBUG
811	/* The idea is hopefully by doing a realloc, the memory
812	* debugging program will now use the current stack trace to
813	* report leaks.
814	*/	609	*/
815	op = realloc(op, sizeof(object));	610	for (int i = NUM_BODY_LOCATIONS; i--; )
816	SET_FLAG(op, FLAG_REMOVED);	611	slot[i].used = slot[i].info;
817	SET_FLAG(op, FLAG_FREED);
818	#endif
819		612
820	if(!QUERY_FLAG(op,FLAG_FREED)) {	613	attachable::instantiate ();
821	LOG(llevError,"Fatal: Getting busy object.\n");	614	}
822	}	615
823	free_objects=op->next;	616	object *
824	if(free_objects!=NULL)	617	object::clone ()
825	free_objects->prev=NULL;	618	{
826	op->count= ++ob_count;	619	object *neu = create ();
827	op->name=NULL;	620	copy_to (neu);
828	op->name_pl=NULL;
829	op->title=NULL;
830	op->race=NULL;
831	op->slaying=NULL;
832	op->skill = NULL;
833	op->lore=NULL;
834	op->msg=NULL;
835	op->materialname=NULL;
836	op->next=objects;
837	op->prev=NULL;
838	op->active_next = NULL;
839	op->active_prev = NULL;
840	if(objects!=NULL)
841	objects->prev=op;
842	objects=op;
843	clear_object(op);
844	SET_FLAG(op,FLAG_REMOVED);
845	nroffreeobjects--;
846	return op;	621	return neu;
847	}	622	}
848		623
849	/*	624	/*
850	* If an object with the IS_TURNABLE() flag needs to be turned due	625	* If an object with the IS_TURNABLE() flag needs to be turned due
851	* to the closest player being on the other side, this function can	626	* to the closest player being on the other side, this function can
852	* be called to update the face variable, _and_ how it looks on the map.	627	* be called to update the face variable, _and_ how it looks on the map.
853	*/	628	*/
854		629	void
855	void update_turn_face(object *op) {	630	update_turn_face (object *op)
		631	{
856	if(!QUERY_FLAG(op,FLAG_IS_TURNABLE)||op->arch==NULL)	632	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || !op->arch)
857	return;	633	return;
		634
858	SET_ANIMATION(op, op->direction);	635	SET_ANIMATION (op, op->direction);
859	update_object(op,UP_OBJ_FACE);	636	update_object (op, UP_OBJ_FACE);
860	}	637	}
861		638
862	/*	639	/*
863	* Updates the speed of an object. If the speed changes from 0 to another	640	* Updates the speed of an object. If the speed changes from 0 to another
864	* value, or vice versa, then add/remove the object from the active list.	641	* value, or vice versa, then add/remove the object from the active list.
865	* This function needs to be called whenever the speed of an object changes.	642	* This function needs to be called whenever the speed of an object changes.
866	*/	643	*/
867		644	void
868	void update_ob_speed(object *op) {	645	object::set_speed (float speed)
869	extern int arch_init;	646	{
870		647	if (flag [FLAG_FREED] && speed)
871	/* No reason putting the archetypes objects on the speed list,	648	{
872	* since they never really need to be updated.
873	*/
874
875	if (QUERY_FLAG(op, FLAG_FREED) && op->speed) {
876	LOG(llevError,"Object %s is freed but has speed.\n", op->name);	649	LOG (llevError, "Object %s is freed but has speed.\n", &name);
877	#ifdef MANY_CORES	650	speed = 0;
878	abort();
879	#else
880	op->speed = 0;
881	#endif
882	}	651	}
883	if (arch_init) {
884	return;
885	}
886	if (FABS(op->speed)>MIN_ACTIVE_SPEED) {
887	/* If already on active list, don't do anything */
888	if (op->active_next || op->active_prev || op==active_objects)
889	return;
890		652
891	/* process_events() expects us to insert the object at the beginning	653	this->speed = speed;
892	* of the list. */	654
893	op->active_next = active_objects;	655	if (has_active_speed ())
894	if (op->active_next!=NULL)	656	activate ();
895	op->active_next->active_prev = op;
896	active_objects = op;
897	}
898	else {	657	else
899	/* If not on the active list, nothing needs to be done */	658	deactivate ();
900	if (!op->active_next && !op->active_prev && op!=active_objects)
901	return;
902
903	if (op->active_prev==NULL) {
904	active_objects = op->active_next;
905	if (op->active_next!=NULL)
906	op->active_next->active_prev = NULL;
907	}
908	else {
909	op->active_prev->active_next = op->active_next;
910	if (op->active_next)
911	op->active_next->active_prev = op->active_prev;
912	}
913	op->active_next = NULL;
914	op->active_prev = NULL;
915	}
916	}	659	}
917		660
918	/* This function removes object 'op' from the list of active
919	* objects.
920	* This should only be used for style maps or other such
921	* reference maps where you don't want an object that isn't
922	* in play chewing up cpu time getting processed.
923	* The reverse of this is to call update_ob_speed, which
924	* will do the right thing based on the speed of the object.
925	*/
926	void remove_from_active_list(object *op)
927	{
928	/* If not on the active list, nothing needs to be done */
929	if (!op->active_next && !op->active_prev && op!=active_objects)
930	return;
931
932	if (op->active_prev==NULL) {
933	active_objects = op->active_next;
934	if (op->active_next!=NULL)
935	op->active_next->active_prev = NULL;
936	}
937	else {
938	op->active_prev->active_next = op->active_next;
939	if (op->active_next)
940	op->active_next->active_prev = op->active_prev;
941	}
942	op->active_next = NULL;
943	op->active_prev = NULL;
944	}
945
946	/*	661	/*
947	* update_object() updates the array which represents the map.	662	* update_object() updates the the map.
948	* It takes into account invisible objects (and represent squares covered	663	* It takes into account invisible objects (and represent squares covered
949	* by invisible objects by whatever is below them (unless it's another	664	* by invisible objects by whatever is below them (unless it's another
950	* invisible object, etc...)	665	* invisible object, etc...)
951	* If the object being updated is beneath a player, the look-window	666	* If the object being updated is beneath a player, the look-window
952	* of that player is updated (this might be a suboptimal way of	667	* of that player is updated (this might be a suboptimal way of
953	* updating that window, though, since update_object() is called _often_)	668	* updating that window, though, since update_object() is called _often_)
954	*	669	*
955	* action is a hint of what the caller believes need to be done.	670	* action is a hint of what the caller believes need to be done.
956	* For example, if the only thing that has changed is the face (due to
957	* an animation), we don't need to call update_position until that actually
958	* comes into view of a player. OTOH, many other things, like addition/removal
959	* of walls or living creatures may need us to update the flags now.
960	* current action are:	671	* current action are:
961	* UP_OBJ_INSERT: op was inserted	672	* UP_OBJ_INSERT: op was inserted
962	* UP_OBJ_REMOVE: op was removed	673	* UP_OBJ_REMOVE: op was removed
963	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update	674	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update
964	* as that is easier than trying to look at what may have changed.	675	* as that is easier than trying to look at what may have changed.
965	* UP_OBJ_FACE: only the objects face has changed.	676	* UP_OBJ_FACE: only the objects face has changed.
966	*/	677	*/
967		678	void
968	void update_object(object *op, int action) {	679	update_object (object *op, int action)
969	int update_now=0, flags;	680	{
970	MoveType move_on, move_off, move_block, move_slow;
971
972	if (op == NULL) {	681	if (op == NULL)
		682	{
973	/* this should never happen */	683	/* this should never happen */
974	LOG(llevDebug,"update_object() called for NULL object.\n");	684	LOG (llevDebug, "update_object() called for NULL object.\n");
975	return;	685	return;
976	}
977		686	}
978	if(op->env!=NULL) {	687
		688	if (op->env)
		689	{
979	/* Animation is currently handled by client, so nothing	690	/* Animation is currently handled by client, so nothing
980	* to do in this case.	691	* to do in this case.
981	*/	692	*/
982	return;	693	return;
983	}	694	}
984		695
985	/* If the map is saving, don't do anything as everything is	696	/* If the map is saving, don't do anything as everything is
986	* going to get freed anyways.	697	* going to get freed anyways.
987	*/	698	*/
988	if (!op->map || op->map->in_memory == MAP_SAVING) return;	699	if (!op->map || op->map->in_memory == MAP_SAVING)
989		700	return;
		701
990	/* make sure the object is within map boundaries */	702	/* make sure the object is within map boundaries */
991	if (op->x < 0 || op->x >= MAP_WIDTH(op->map) ||	703	if (op->x < 0 || op->x >= op->map->width || op->y < 0 || op->y >= op->map->height)
992	op->y < 0 || op->y >= MAP_HEIGHT(op->map)) {	704	{
993	LOG(llevError,"update_object() called for object out of map!\n");	705	LOG (llevError, "update_object() called for object out of map!\n");
994	#ifdef MANY_CORES	706	#ifdef MANY_CORES
995	abort();	707	abort ();
996	#endif	708	#endif
997	return;	709	return;
998	}
999		710	}
1000	flags = GET_MAP_FLAGS(op->map, op->x, op->y);
1001	SET_MAP_FLAGS(op->map, op->x, op->y, flags | P_NEED_UPDATE);
1002	move_slow = GET_MAP_MOVE_SLOW(op->map, op->x, op->y);
1003	move_on = GET_MAP_MOVE_ON(op->map, op->x, op->y);
1004	move_block = GET_MAP_MOVE_BLOCK(op->map, op->x, op->y);
1005	move_off = GET_MAP_MOVE_OFF(op->map, op->x, op->y);
1006		711
		712	mapspace &m = op->ms ();
		713
		714	if (!(m.flags_ & P_UPTODATE))
		715	/* nop */;
1007	if (action == UP_OBJ_INSERT) {	716	else if (action == UP_OBJ_INSERT)
		717	{
		718	// this is likely overkill, TODO: revisit (schmorp)
1008	if (QUERY_FLAG(op, FLAG_BLOCKSVIEW) && !(flags & P_BLOCKSVIEW))	719	if ((QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(m.flags_ & P_BLOCKSVIEW))
1009	update_now=1;
1010
1011	if (QUERY_FLAG(op, FLAG_NO_MAGIC) && !(flags & P_NO_MAGIC))	720	|| (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(m.flags_ & P_NO_MAGIC))
1012	update_now=1;	721	|| (op->type == PLAYER && !(m.flags_ & P_PLAYER))
1013		722	|| (op->type == SAFE_GROUND && !(m.flags_ & P_SAFE))
		723	|| (QUERY_FLAG (op, FLAG_ALIVE) && !(m.flags_ & P_IS_ALIVE))
1014	if (QUERY_FLAG(op, FLAG_DAMNED) && !(flags & P_NO_CLERIC))	724	|| (QUERY_FLAG (op, FLAG_DAMNED) && !(m.flags_ & P_NO_CLERIC))
1015	update_now=1;	725	|| (m.move_on | op->move_on ) != m.move_on
1016		726	|| (m.move_off | op->move_off ) != m.move_off
1017	if (QUERY_FLAG(op, FLAG_ALIVE) && !(flags & P_IS_ALIVE))	727	|| (m.move_slow | op->move_slow) != m.move_slow
1018	update_now=1;
1019
1020	if ((move_on | op->move_on) != move_on) update_now=1;
1021	if ((move_off | op->move_off) != move_off) update_now=1;
1022	/* This isn't perfect, but I don't expect a lot of objects to	728	/* This isn't perfect, but I don't expect a lot of objects to
1023	* to have move_allow right now.	729	* to have move_allow right now.
1024	*/	730	*/
1025	if (((move_block | op->move_block) & ~op->move_allow) != move_block)	731	|| ((m.move_block | op->move_block) & ~op->move_allow) != m.move_block
1026	update_now=1;	732	|| 1) // the above is not strong enough a test to skip updating. los maybe? TODO (Schmorp)
1027	if ((move_slow | op->move_slow) != move_slow) update_now=1;	733	m.flags_ = 0;
1028	}	734	}
1029	/* if the object is being removed, we can't make intelligent	735	/* if the object is being removed, we can't make intelligent
1030	* decisions, because remove_ob can't really pass the object	736	* decisions, because remove_ob can't really pass the object
1031	* that is being removed.	737	* that is being removed.
1032	*/	738	*/
1033	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE) {	739	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)
1034	update_now=1;	740	m.flags_ = 0;
1035	} else if (action == UP_OBJ_FACE) {	741	else if (action == UP_OBJ_FACE)
1036	/* Nothing to do for that case */	742	/* Nothing to do for that case */ ;
1037	}
1038	else {	743	else
1039	LOG(llevError,"update_object called with invalid action: %d\n", action);	744	LOG (llevError, "update_object called with invalid action: %d\n", action);
1040	}
1041		745
1042	if (update_now) {
1043	SET_MAP_FLAGS(op->map, op->x, op->y, flags | P_NO_ERROR | P_NEED_UPDATE);
1044	update_position(op->map, op->x, op->y);
1045	}
1046
1047	if(op->more!=NULL)	746	if (op->more)
1048	update_object(op->more, action);	747	update_object (op->more, action);
1049	}	748	}
1050		749
		750	object::object ()
		751	{
		752	SET_FLAG (this, FLAG_REMOVED);
1051		753
1052	/*	754	expmul = 1.0;
1053	* free_object() frees everything allocated by an object, removes	755	face = blank_face;
1054	* it from the list of used objects, and puts it on the list of	756	}
1055	* free objects. The IS_FREED() flag is set in the object.	757
1056	* The object must have been removed by remove_ob() first for	758	object::~object ()
1057	* this function to succeed.	759	{
		760	unlink ();
		761
		762	free_key_values (this);
		763	}
		764
		765	static int object_count;
		766
		767	void object::link ()
		768	{
		769	assert (!index);//D
		770	uuid = gen_uuid ();
		771	count = ++object_count;
		772
		773	refcnt_inc ();
		774	objects.insert (this);
		775	}
		776
		777	void object::unlink ()
		778	{
		779	if (!index)
		780	return;
		781
		782	objects.erase (this);
		783	refcnt_dec ();
		784	}
		785
		786	void
		787	object::activate ()
		788	{
		789	/* If already on active list, don't do anything */
		790	if (active)
		791	return;
		792
		793	if (has_active_speed ())
		794	actives.insert (this);
		795	}
		796
		797	void
		798	object::activate_recursive ()
		799	{
		800	activate ();
		801
		802	for (object *op = inv; op; op = op->below)
		803	op->activate_recursive ();
		804	}
		805
		806	/* This function removes object 'op' from the list of active
		807	* objects.
		808	* This should only be used for style maps or other such
		809	* reference maps where you don't want an object that isn't
		810	* in play chewing up cpu time getting processed.
		811	* The reverse of this is to call update_ob_speed, which
		812	* will do the right thing based on the speed of the object.
1058	*	813	*/
1059	* If free_inventory is set, free inventory as well. Else drop items in	814	void
1060	* inventory to the ground.	815	object::deactivate ()
1061	*/	816	{
		817	/* If not on the active list, nothing needs to be done */
		818	if (!active)
		819	return;
1062		820
1063	void free_object(object *ob) {	821	actives.erase (this);
1064	free_object2(ob, 0);
1065	}	822	}
1066	void free_object2(object *ob, int free_inventory) {
1067	object *tmp,*op;
1068		823
1069	ob->clear ();	824	void
		825	object::deactivate_recursive ()
		826	{
		827	for (object *op = inv; op; op = op->below)
		828	op->deactivate_recursive ();
1070		829
1071	if (!QUERY_FLAG(ob,FLAG_REMOVED)) {	830	deactivate ();
1072	LOG(llevDebug,"Free object called with non removed object\n");	831	}
1073	dump_object(ob);	832
1074	#ifdef MANY_CORES	833	void
1075	abort();	834	object::set_flag_inv (int flag, int value)
1076	#endif	835	{
		836	for (object *op = inv; op; op = op->below)
1077	}	837	{
1078	if(QUERY_FLAG(ob,FLAG_FRIENDLY)) {	838	op->flag [flag] = value;
1079	LOG(llevMonster,"Warning: tried to free friendly object.\n");	839	op->set_flag_inv (flag, value);
1080	remove_friendly_object(ob);
1081	}	840	}
1082	if(QUERY_FLAG(ob,FLAG_FREED)) {	841	}
1083	dump_object(ob);	842
1084	LOG(llevError,"Trying to free freed object.\n%s\n",errmsg);	843	/*
1085	return;	844	* Remove and free all objects in the inventory of the given object.
1086	}	845	* object.c ?
1087	if(ob->more!=NULL) {	846	*/
1088	free_object2(ob->more, free_inventory);	847	void
1089	ob->more=NULL;	848	object::destroy_inv (bool drop_to_ground)
1090	}	849	{
1091	if (ob->inv) {	850	// need to check first, because the checks below might segfault
		851	// as we might be on an invalid mapspace and crossfire code
		852	// is too buggy to ensure that the inventory is empty.
		853	// corollary: if you create arrows etc. with stuff in tis inventory,
		854	// cf will crash below with off-map x and y
		855	if (!inv)
		856	return;
		857
1092	/* Only if the space blocks everything do we not process -	858	/* Only if the space blocks everything do we not process -
1093	* if some form of movemnt is allowed, let objects	859	* if some form of movement is allowed, let objects
1094	* drop on that space.	860	* drop on that space.
1095	*/	861	*/
1096	if (free_inventory || ob->map==NULL || ob->map->in_memory!=MAP_IN_MEMORY ||	862	if (!drop_to_ground
1097	(GET_MAP_MOVE_BLOCK(ob->map, ob->x, ob->y) == MOVE_ALL))	863	|| !map
1098	{	864	|| map->in_memory != MAP_IN_MEMORY
1099	op=ob->inv;	865	|| map->nodrop
1100	while(op!=NULL) {	866	|| ms ().move_block == MOVE_ALL)
1101	tmp=op->below;	867	{
1102	remove_ob(op);	868	while (inv)
1103	free_object2(op, free_inventory);	869	{
1104	op=tmp;	870	inv->destroy_inv (drop_to_ground);
		871	inv->destroy ();
		872	}
1105	}	873	}
1106	}	874	else
1107	else { /* Put objects in inventory onto this space */	875	{ /* Put objects in inventory onto this space */
1108	op=ob->inv;	876	while (inv)
1109	while(op!=NULL) {	877	{
1110	tmp=op->below;	878	object *op = inv;
1111	remove_ob(op);	879
1112	if(QUERY_FLAG(op,FLAG_STARTEQUIP)||QUERY_FLAG(op,FLAG_NO_DROP) ||	880	if (op->flag [FLAG_STARTEQUIP]
1113	op->type==RUNE || op->type==TRAP || QUERY_FLAG(op,FLAG_IS_A_TEMPLATE))	881	|| op->flag [FLAG_NO_DROP]
1114	free_object(op);	882	|| op->type == RUNE
1115	else {	883	|| op->type == TRAP
1116	op->x=ob->x;	884	|| op->flag [FLAG_IS_A_TEMPLATE]
1117	op->y=ob->y;	885	|| op->flag [FLAG_DESTROY_ON_DEATH])
1118	insert_ob_in_map(op,ob->map,NULL,0); /* Insert in same map as the envir */	886	op->destroy ();
1119	}	887	else
1120	op=tmp;	888	map->insert (op, x, y);
		889	}
1121	}	890	}
1122	}	891	}
		892
		893	object *object::create ()
		894	{
		895	object *op = new object;
		896	op->link ();
		897	return op;
		898	}
		899
		900	void
		901	object::do_destroy ()
		902	{
		903	attachable::do_destroy ();
		904
		905	if (flag [FLAG_IS_LINKED])
		906	remove_button_link (this);
		907
		908	if (flag [FLAG_FRIENDLY])
		909	remove_friendly_object (this);
		910
		911	if (!flag [FLAG_REMOVED])
		912	remove ();
		913
		914	destroy_inv (true);
		915
		916	deactivate ();
		917	unlink ();
		918
		919	flag [FLAG_FREED] = 1;
		920
		921	// hack to ensure that freed objects still have a valid map
		922	{
		923	static maptile *freed_map; // freed objects are moved here to avoid crashes
		924
		925	if (!freed_map)
		926	{
		927	freed_map = new maptile;
		928
		929	freed_map->name = "/internal/freed_objects_map";
		930	freed_map->width = 3;
		931	freed_map->height = 3;
		932
		933	freed_map->alloc ();
		934	freed_map->in_memory = MAP_IN_MEMORY;
1123	}	935	}
1124	/* Remove object from the active list */
1125	ob->speed = 0;
1126	update_ob_speed(ob);
1127		936
1128	SET_FLAG(ob, FLAG_FREED);	937	map = freed_map;
1129	ob->count = 0;	938	x = 1;
1130		939	y = 1;
1131	/* Remove this object from the list of used objects */
1132	if(ob->prev==NULL) {
1133	objects=ob->next;
1134	if(objects!=NULL)
1135	objects->prev=NULL;
1136	}
1137	else {
1138	ob->prev->next=ob->next;
1139	if(ob->next!=NULL)
1140	ob->next->prev=ob->prev;
1141	}
1142		940	}
1143	if(ob->name!=NULL) FREE_AND_CLEAR_STR(ob->name);
1144	if(ob->name_pl!=NULL) FREE_AND_CLEAR_STR(ob->name_pl);
1145	if(ob->title!=NULL) FREE_AND_CLEAR_STR(ob->title);
1146	if(ob->race!=NULL) FREE_AND_CLEAR_STR(ob->race);
1147	if(ob->slaying!=NULL) FREE_AND_CLEAR_STR(ob->slaying);
1148	if(ob->skill!=NULL) FREE_AND_CLEAR_STR(ob->skill);
1149	if(ob->lore!=NULL) FREE_AND_CLEAR_STR(ob->lore);
1150	if(ob->msg!=NULL) FREE_AND_CLEAR_STR(ob->msg);
1151	if(ob->materialname!=NULL) FREE_AND_CLEAR_STR(ob->materialname);
1152		941
		942	head = 0;
		943
		944	if (more)
1153		945	{
1154	/* Why aren't events freed? */	946	more->destroy ();
1155	free_key_values(ob);	947	more = 0;
		948	}
1156		949
1157	#if 0 /* MEMORY_DEBUG*/	950	// clear those pointers that likely might have circular references to us
1158	/* This is a nice idea. Unfortunately, a lot of the code in crossfire	951	owner = 0;
1159	* presumes the freed_object will stick around for at least a little	952	enemy = 0;
1160	* bit	953	attacked_by = 0;
1161	*/
1162	/* this is necessary so that memory debugging programs will
1163	* be able to accurately report source of malloc. If we recycle
1164	* objects, then some other area may be doing the get_object
1165	* and not freeing it, but the original one that malloc'd the
1166	* object will get the blame.
1167	*/
1168	free(ob);
1169	#else
1170
1171	/* Now link it with the free_objects list: */
1172	ob->prev=NULL;
1173	ob->next=free_objects;
1174	if(free_objects!=NULL)
1175	free_objects->prev=ob;
1176	free_objects=ob;
1177	nroffreeobjects++;
1178	#endif
1179	}	954	}
1180		955
1181	/*	956	void
1182	* count_free() returns the number of objects on the list of free objects.	957	object::destroy (bool destroy_inventory)
1183	*/	958	{
1184		959	if (destroyed ())
1185	int count_free(void) {
1186	int i=0;
1187	object *tmp=free_objects;
1188	while(tmp!=NULL)
1189	tmp=tmp->next, i++;
1190	return i;	960	return;
1191	}
1192		961
1193	/*	962	if (destroy_inventory)
1194	* count_used() returns the number of objects on the list of used objects.	963	destroy_inv (false);
1195	*/
1196		964
1197	int count_used(void) {	965	attachable::destroy ();
1198	int i=0;
1199	object *tmp=objects;
1200	while(tmp!=NULL)
1201	tmp=tmp->next, i++;
1202	return i;
1203	}
1204
1205	/*
1206	* count_active() returns the number of objects on the list of active objects.
1207	*/
1208
1209	int count_active(void) {
1210	int i=0;
1211	object *tmp=active_objects;
1212	while(tmp!=NULL)
1213	tmp=tmp->active_next, i++;
1214	return i;
1215	}	966	}
1216		967
1217	/*	968	/*
1218	* sub_weight() recursively (outwards) subtracts a number from the	969	* sub_weight() recursively (outwards) subtracts a number from the
1219	* weight of an object (and what is carried by it's environment(s)).	970	* weight of an object (and what is carried by it's environment(s)).
1220	*/	971	*/
1221		972	void
1222	void sub_weight (object *op, signed long weight) {	973	sub_weight (object *op, signed long weight)
		974	{
1223	while (op != NULL) {	975	while (op != NULL)
		976	{
1224	if (op->type == CONTAINER) {	977	if (op->type == CONTAINER)
1225	weight=(signed long)(weight*(100-op->stats.Str)/100);	978	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1226	}	979
1227	op->carrying-=weight;	980	op->carrying -= weight;
1228	op = op->env;	981	op = op->env;
1229	}	982	}
1230	}	983	}
1231		984
1232	/* remove_ob(op):	985	/* op->remove ():
1233	* This function removes the object op from the linked list of objects	986	* This function removes the object op from the linked list of objects
1234	* which it is currently tied to. When this function is done, the	987	* which it is currently tied to. When this function is done, the
1235	* object will have no environment. If the object previously had an	988	* object will have no environment. If the object previously had an
1236	* environment, the x and y coordinates will be updated to	989	* environment, the x and y coordinates will be updated to
1237	* the previous environment.	990	* the previous environment.
1238	* Beware: This function is called from the editor as well!
1239	*/	991	*/
1240		992	void
1241	void remove_ob(object *op) {	993	object::do_remove ()
		994	{
1242	object *tmp,*last=NULL;	995	object *tmp, *last = 0;
1243	object *otmp;	996	object *otmp;
1244	tag_t tag;
1245	int check_walk_off;
1246	mapstruct *m;
1247	sint16 x,y;
1248
1249		997
1250	if(QUERY_FLAG(op,FLAG_REMOVED)) {	998	if (QUERY_FLAG (this, FLAG_REMOVED))
1251	dump_object(op);	999	return;
1252	LOG(llevError,"Trying to remove removed object.\n%s\n",errmsg);
1253		1000
1254	/* Changed it to always dump core in this case. As has been learned
1255	* in the past, trying to recover from errors almost always
1256	* make things worse, and this is a real error here - something
1257	* that should not happen.
1258	* Yes, if this was a mission critical app, trying to do something
1259	* to recover may make sense, but that is because failure of the app
1260	* may have other disastrous problems. Cf runs out of a script
1261	* so is easily enough restarted without any real problems.
1262	* MSW 2001-07-01
1263	*/
1264	abort();
1265	}
1266	if(op->more!=NULL)
1267	remove_ob(op->more);
1268
1269	SET_FLAG(op, FLAG_REMOVED);	1001	SET_FLAG (this, FLAG_REMOVED);
		1002	INVOKE_OBJECT (REMOVE, this);
1270		1003
		1004	if (more)
		1005	more->remove ();
		1006
1271	/*	1007	/*
1272	* In this case, the object to be removed is in someones	1008	* In this case, the object to be removed is in someones
1273	* inventory.	1009	* inventory.
1274	*/	1010	*/
1275	if(op->env!=NULL) {	1011	if (env)
1276	if(op->nrof)	1012	{
		1013	if (nrof)
1277	sub_weight(op->env, op->weight*op->nrof);	1014	sub_weight (env, weight * nrof);
1278	else	1015	else
1279	sub_weight(op->env, op->weight+op->carrying);	1016	sub_weight (env, weight + carrying);
1280		1017
1281	/* NO_FIX_PLAYER is set when a great many changes are being	1018	/* NO_FIX_PLAYER is set when a great many changes are being
1282	* made to players inventory. If set, avoiding the call	1019	* made to players inventory. If set, avoiding the call
1283	* to save cpu time.	1020	* to save cpu time.
1284	*/	1021	*/
1285	if ((otmp=is_player_inv(op->env))!=NULL && otmp->contr &&	1022	if ((otmp = in_player ()) && otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1286	!QUERY_FLAG(otmp,FLAG_NO_FIX_PLAYER))	1023	otmp->update_stats ();
1287	fix_player(otmp);
1288		1024
1289	if(op->above!=NULL)	1025	if (above)
1290	op->above->below=op->below;	1026	above->below = below;
1291	else	1027	else
1292	op->env->inv=op->below;	1028	env->inv = below;
1293		1029
1294	if(op->below!=NULL)	1030	if (below)
1295	op->below->above=op->above;	1031	below->above = above;
1296		1032
1297	/* we set up values so that it could be inserted into	1033	/* we set up values so that it could be inserted into
1298	* the map, but we don't actually do that - it is up	1034	* the map, but we don't actually do that - it is up
1299	* to the caller to decide what we want to do.	1035	* to the caller to decide what we want to do.
1300	*/
1301	op->x=op->env->x,op->y=op->env->y;
1302	op->ox=op->x,op->oy=op->y;
1303	op->map=op->env->map;
1304	op->above=NULL,op->below=NULL;
1305	op->env=NULL;
1306	return;
1307	}
1308
1309	/* If we get here, we are removing it from a map */
1310	if (op->map == NULL) return;
1311
1312	x = op->x;
1313	y = op->y;
1314	m = get_map_from_coord(op->map, &x, &y);
1315
1316	if (!m) {
1317	LOG(llevError,"remove_ob called when object was on map but appears to not be within valid coordinates? %s (%d,%d)\n",
1318	op->map->path, op->x, op->y);
1319	/* in old days, we used to set x and y to 0 and continue.
1320	* it seems if we get into this case, something is probablye
1321	* screwed up and should be fixed.
1322	*/
1323	abort();
1324	}
1325	if (op->map != m) {
1326	LOG(llevDebug,"remove_ob: Object not really on map it claimed to be on? %s != %s, %d,%d != %d,%d\n",
1327	op->map->path, m->path, op->x, op->y, x, y);
1328	}
1329
1330	/* Re did the following section of code - it looks like it had
1331	* lots of logic for things we no longer care about
1332	*/	1036	*/
		1037	x = env->x, y = env->y;
		1038	map = env->map;
		1039	above = 0, below = 0;
		1040	env = 0;
		1041	}
		1042	else if (map)
		1043	{
		1044	if (type == PLAYER)
		1045	{
		1046	// leaving a spot always closes any open container on the ground
		1047	if (container && !container->env)
		1048	// this causes spurious floorbox updates, but it ensures
		1049	// that the CLOSE event is being sent.
		1050	close_container ();
1333		1051
		1052	--map->players;
		1053	map->touch ();
		1054	}
		1055
		1056	map->dirty = true;
		1057	mapspace &ms = this->ms ();
		1058
1334	/* link the object above us */	1059	/* link the object above us */
1335	if (op->above)	1060	if (above)
1336	op->above->below=op->below;	1061	above->below = below;
1337	else	1062	else
1338	SET_MAP_TOP(m,x,y,op->below); /* we were top, set new top */	1063	ms.top = below; /* we were top, set new top */
1339		1064
1340	/* Relink the object below us, if there is one */	1065	/* Relink the object below us, if there is one */
1341	if(op->below) {	1066	if (below)
1342	op->below->above=op->above;	1067	below->above = above;
1343	} else {	1068	else
		1069	{
1344	/* Nothing below, which means we need to relink map object for this space	1070	/* Nothing below, which means we need to relink map object for this space
1345	* use translated coordinates in case some oddness with map tiling is	1071	* use translated coordinates in case some oddness with map tiling is
1346	* evident	1072	* evident
1347	*/	1073	*/
1348	if(GET_MAP_OB(m,x,y)!=op) {	1074	if (GET_MAP_OB (map, x, y) != this)
1349	dump_object(op);
1350	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);	1075	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 ());
1351	dump_object(GET_MAP_OB(m,x,y));
1352	LOG(llevError,"%s\n",errmsg);
1353	}
1354	SET_MAP_OB(m,x,y,op->above); /* goes on above it. */
1355	}
1356	op->above=NULL;
1357	op->below=NULL;
1358		1076
		1077	ms.bot = above; /* goes on above it. */
		1078	}
		1079
		1080	above = 0;
		1081	below = 0;
		1082
1359	if (op->map->in_memory == MAP_SAVING)	1083	if (map->in_memory == MAP_SAVING)
1360	return;	1084	return;
1361		1085
1362	tag = op->count;	1086	int check_walk_off = !flag [FLAG_NO_APPLY];
1363	check_walk_off = ! QUERY_FLAG (op, FLAG_NO_APPLY);	1087
1364	for(tmp=GET_MAP_OB(m,x,y);tmp!=NULL;tmp=tmp->above) {	1088	for (tmp = ms.bot; tmp; tmp = tmp->above)
		1089	{
1365	/* No point updating the players look faces if he is the object	1090	/* No point updating the players look faces if he is the object
1366	* being removed.	1091	* being removed.
1367	*/	1092	*/
1368		1093
1369	if(tmp->type==PLAYER && tmp!=op) {	1094	if (tmp->type == PLAYER && tmp != this)
		1095	{
1370	/* If a container that the player is currently using somehow gets	1096	/* If a container that the player is currently using somehow gets
1371	* removed (most likely destroyed), update the player view	1097	* removed (most likely destroyed), update the player view
1372	* appropriately.	1098	* appropriately.
1373	*/	1099	*/
1374	if (tmp->container==op) {	1100	if (tmp->container == this)
1375	CLEAR_FLAG(op, FLAG_APPLIED);	1101	{
1376	tmp->container=NULL;	1102	flag [FLAG_APPLIED] = 0;
1377	}	1103	tmp->container = 0;
1378	tmp->contr->socket.update_look=1;	1104	}
1379	}	1105
		1106	if (tmp->contr->ns)
		1107	tmp->contr->ns->floorbox_update ();
		1108	}
		1109
1380	/* See if player moving off should effect something */	1110	/* See if object moving off should effect something */
1381	if (check_walk_off && ((op->move_type & tmp->move_off) &&	1111	if (check_walk_off
		1112	&& ((move_type & tmp->move_off)
1382	(op->move_type & ~tmp->move_off & ~tmp->move_block)==0)) {	1113	&& (move_type & ~tmp->move_off & ~tmp->move_block) == 0))
		1114	{
		1115	move_apply (tmp, this, 0);
1383		1116
1384	move_apply(tmp, op, NULL);	1117	if (destroyed ())
1385	if (was_destroyed (op, tag)) {	1118	LOG (llevError, "BUG: remove_ob(): name %s, destroyed leaving object\n", tmp->debug_desc ());
1386	LOG (llevError, "BUG: remove_ob(): name %s, archname %s destroyed "	1119	}
1387	"leaving object\n", tmp->name, tmp->arch->name);
1388	}
1389	}
1390		1120
1391	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */	1121	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */
1392		1122	//TODO: why is this horrible hacka fix? get rid of this code=bug! (schmorp)
1393	if(tmp->above == tmp)	1123	if (tmp->above == tmp)
1394	tmp->above = NULL;	1124	tmp->above = 0;
1395	last=tmp;	1125
1396	}	1126	last = tmp;
		1127	}
		1128
1397	/* last == NULL of there are no objects on this space */	1129	/* last == NULL if there are no objects on this space */
1398	if (last==NULL) {	1130	//TODO: this makes little sense, why only update the topmost object?
1399	/* set P_NEED_UPDATE, otherwise update_position will complain. In theory,	1131	if (!last)
1400	* we could preserve the flags (GET_MAP_FLAGS), but update_position figures	1132	map->at (x, y).flags_ = 0;
1401	* those out anyways, and if there are any flags set right now, they won't
1402	* be correct anyways.
1403	*/
1404	SET_MAP_FLAGS(op->map, op->x, op->y, P_NEED_UPDATE);
1405	update_position(op->map, op->x, op->y);
1406	}
1407	else	1133	else
1408	update_object(last, UP_OBJ_REMOVE);	1134	update_object (last, UP_OBJ_REMOVE);
1409		1135
1410	if(QUERY_FLAG(op,FLAG_BLOCKSVIEW)|| (op->glow_radius != 0))	1136	if (flag [FLAG_BLOCKSVIEW] || glow_radius)
1411	update_all_los(op->map, op->x, op->y);	1137	update_all_los (map, x, y);
1412		1138	}
1413	}	1139	}
1414		1140
1415	/*	1141	/*
1416	* merge_ob(op,top):	1142	* merge_ob(op,top):
1417	*	1143	*
1418	* This function goes through all objects below and including top, and	1144	* This function goes through all objects below and including top, and
1419	* merges op to the first matching object.	1145	* merges op to the first matching object.
1420	* If top is NULL, it is calculated.	1146	* If top is NULL, it is calculated.
1421	* Returns pointer to object if it succeded in the merge, otherwise NULL	1147	* Returns pointer to object if it succeded in the merge, otherwise NULL
1422	*/	1148	*/
1423		1149	object *
1424	object *merge_ob(object *op, object *top) {	1150	merge_ob (object *op, object *top)
		1151	{
1425	if(!op->nrof)	1152	if (!op->nrof)
1426	return 0;	1153	return 0;
1427	if(top==NULL)	1154
		1155	if (top)
1428	for(top=op;top!=NULL&&top->above!=NULL;top=top->above);	1156	for (top = op; top && top->above; top = top->above)
		1157	;
		1158
1429	for(;top!=NULL;top=top->below) {	1159	for (; top; top = top->below)
		1160	{
1430	if(top==op)	1161	if (top == op)
1431	continue;	1162	continue;
1432	if (CAN_MERGE(op,top))	1163
1433	{	1164	if (object::can_merge (op, top))
		1165	{
1434	top->nrof+=op->nrof;	1166	top->nrof += op->nrof;
		1167
1435	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/	1168	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/
1436	op->weight = 0; /* Don't want any adjustements now */	1169	op->weight = 0; /* Don't want any adjustements now */
1437	remove_ob(op);	1170	op->destroy ();
1438	free_object(op);
1439	return top;	1171	return top;
1440	}	1172	}
1441	}	1173	}
		1174
1442	return NULL;	1175	return 0;
1443	}	1176	}
1444		1177
		1178	void
		1179	object::expand_tail ()
		1180	{
		1181	if (more)
		1182	return;
		1183
		1184	object *prev = this;
		1185
		1186	for (archetype *at = (archetype *)arch->more; at; at = (archetype *)at->more)
		1187	{
		1188	object *op = arch_to_object (at);
		1189
		1190	op->name = name;
		1191	op->name_pl = name_pl;
		1192	op->title = title;
		1193
		1194	op->head = this;
		1195	prev->more = op;
		1196
		1197	prev = op;
		1198	}
		1199	}
		1200
1445	/*	1201	/*
1446	* same as insert_ob_in_map except it handle separate coordinates and do a clean	1202	* same as insert_ob_in_map except it handles separate coordinates and does a clean
1447	* job preparing multi-part monsters	1203	* job preparing multi-part monsters.
1448	*/	1204	*/
		1205	object *
1449	object *insert_ob_in_map_at(object *op, mapstruct *m, object *originator, int flag, int x, int y){	1206	insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)
1450	object* tmp;	1207	{
1451	if (op->head)	1208	for (object *tmp = op->head_ (); tmp; tmp = tmp->more)
1452	op=op->head;	1209	{
1453	for (tmp=op;tmp;tmp=tmp->more){
1454	tmp->x=x+tmp->arch->clone.x;	1210	tmp->x = x + tmp->arch->x;
1455	tmp->y=y+tmp->arch->clone.y;	1211	tmp->y = y + tmp->arch->y;
1456	}	1212	}
		1213
1457	return insert_ob_in_map (op, m, originator, flag);	1214	return insert_ob_in_map (op, m, originator, flag);
1458	}	1215	}
1459		1216
1460	/*	1217	/*
1461	* insert_ob_in_map (op, map, originator, flag):	1218	* insert_ob_in_map (op, map, originator, flag):
1462	* This function inserts the object in the two-way linked list	1219	* This function inserts the object in the two-way linked list
…		…
1475	* Return value:	1232	* Return value:
1476	* new object if 'op' was merged with other object	1233	* new object if 'op' was merged with other object
1477	* NULL if 'op' was destroyed	1234	* NULL if 'op' was destroyed
1478	* just 'op' otherwise	1235	* just 'op' otherwise
1479	*/	1236	*/
1480		1237	object *
1481	object *insert_ob_in_map (object *op, mapstruct *m, object *originator, int flag)	1238	insert_ob_in_map (object *op, maptile *m, object *originator, int flag)
1482	{	1239	{
		1240	assert (!op->flag [FLAG_FREED]);
		1241
1483	object *tmp, *top, *floor=NULL;	1242	object *top, *floor = NULL;
1484	sint16 x,y;
1485		1243
1486	if (QUERY_FLAG (op, FLAG_FREED)) {	1244	op->remove ();
1487	LOG (llevError, "Trying to insert freed object!\n");	1245
1488	return NULL;	1246	#if 0
1489	}	1247	if (!m->active != !op->active)
1490	if(m==NULL) {	1248	if (m->active)
1491	dump_object(op);	1249	op->activate_recursive ();
1492	LOG(llevError,"Trying to insert in null-map!\n%s\n",errmsg);	1250	else
1493	return op;	1251	op->deactivate_recursive ();
1494	}	1252	#endif
		1253
1495	if(out_of_map(m,op->x,op->y)) {	1254	if (out_of_map (m, op->x, op->y))
1496	dump_object(op);	1255	{
1497	LOG(llevError,"Trying to insert object outside the map.\n%s\n", errmsg);	1256	LOG (llevError, "Trying to insert object outside the map.\n%s\n", op->debug_desc ());
1498	#ifdef MANY_CORES	1257	#ifdef MANY_CORES
1499	/* Better to catch this here, as otherwise the next use of this object	1258	/* Better to catch this here, as otherwise the next use of this object
1500	* is likely to cause a crash. Better to find out where it is getting	1259	* is likely to cause a crash. Better to find out where it is getting
1501	* improperly inserted.	1260	* improperly inserted.
1502	*/	1261	*/
1503	abort();	1262	abort ();
1504	#endif	1263	#endif
1505	return op;	1264	return op;
1506	}	1265	}
1507	if(!QUERY_FLAG(op,FLAG_REMOVED)) {
1508	dump_object(op);
1509	LOG(llevError,"Trying to insert (map) inserted object.\n%s\n", errmsg);
1510	return op;
1511	}
1512	if(op->more!=NULL) {
1513	/* The part may be on a different map. */
1514		1266
1515	object *more = op->more;	1267	if (object *more = op->more)
1516
1517	/* We really need the caller to normalize coordinates - if
1518	* we set the map, that doesn't work if the location is within
1519	* a map and this is straddling an edge. So only if coordinate
1520	* is clear wrong do we normalize it.
1521	*/
1522	if (OUT_OF_REAL_MAP(more->map, more->x, more->y)) {
1523	/* Debugging information so you can see the last coordinates this object had */
1524	more->ox = more->x;
1525	more->oy = more->y;
1526	more->map = get_map_from_coord(m, &more->x, &more->y);
1527	} else if (!more->map) {
1528	/* For backwards compatibility - when not dealing with tiled maps,
1529	* more->map should always point to the parent.
1530	*/
1531	more->map = m;
1532	}
1533
1534	if (insert_ob_in_map(more, more->map, originator, flag) == NULL) {	1268	if (!insert_ob_in_map (more, m, originator, flag))
1535	if ( ! op->head)
1536	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");
1537	return NULL;	1269	return 0;
1538	}	1270
1539	}
1540	CLEAR_FLAG(op,FLAG_REMOVED);	1271	CLEAR_FLAG (op, FLAG_REMOVED);
1541		1272
1542	/* Debugging information so you can see the last coordinates this object had */
1543	op->ox=op->x;
1544	op->oy=op->y;
1545
1546	/* Ideally, the caller figures this out. However, it complicates a lot	1273	/* Ideally, the caller figures this out. However, it complicates a lot
1547	* of areas of callers (eg, anything that uses find_free_spot would now	1274	* of areas of callers (eg, anything that uses find_free_spot would now
1548	* need extra work	1275	* need extra work
1549	*/	1276	*/
1550	op->map=get_map_from_coord(m, &op->x, &op->y);	1277	if (!xy_normalise (m, op->x, op->y))
1551	x = op->x;	1278	return 0;
1552	y = op->y;
1553		1279
		1280	op->map = m;
		1281	mapspace &ms = op->ms ();
		1282
1554	/* this has to be done after we translate the coordinates.	1283	/* this has to be done after we translate the coordinates.
1555	*/	1284	*/
1556	if(op->nrof && !(flag & INS_NO_MERGE)) {	1285	if (op->nrof && !(flag & INS_NO_MERGE))
1557	for(tmp=GET_MAP_OB(op->map,x,y);tmp!=NULL;tmp=tmp->above)	1286	for (object *tmp = ms.bot; tmp; tmp = tmp->above)
1558	if (CAN_MERGE(op,tmp)) {	1287	if (object::can_merge (op, tmp))
1559	op->nrof+=tmp->nrof;	1288	{
1560	remove_ob(tmp);	1289	op->nrof += tmp->nrof;
1561	free_object(tmp);	1290	tmp->destroy ();
1562	}	1291	}
1563	}
1564		1292
1565	CLEAR_FLAG(op,FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */	1293	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */
1566	CLEAR_FLAG(op, FLAG_INV_LOCKED);	1294	CLEAR_FLAG (op, FLAG_INV_LOCKED);
		1295
1567	if (!QUERY_FLAG(op, FLAG_ALIVE))	1296	if (!QUERY_FLAG (op, FLAG_ALIVE))
1568	CLEAR_FLAG(op, FLAG_NO_STEAL);	1297	CLEAR_FLAG (op, FLAG_NO_STEAL);
1569		1298
1570	if (flag & INS_BELOW_ORIGINATOR) {	1299	if (flag & INS_BELOW_ORIGINATOR)
		1300	{
1571	if (originator->map != op->map || originator->x != op->x ||	1301	if (originator->map != op->map || originator->x != op->x || originator->y != op->y)
1572	originator->y != op->y) {	1302	{
1573	LOG(llevError,"insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");	1303	LOG (llevError, "insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");
1574	abort();	1304	abort ();
1575	}	1305	}
		1306
1576	op->above = originator;	1307	op->above = originator;
1577	op->below = originator->below;	1308	op->below = originator->below;
1578	if (op->below) op->below->above = op;	1309
1579	else SET_MAP_OB(op->map, op->x, op->y, op);	1310	if (op->below)
		1311	op->below->above = op;
		1312	else
		1313	ms.bot = op;
		1314
1580	/* since *below* originator, no need to update top */	1315	/* since *below* originator, no need to update top */
1581	originator->below = op;	1316	originator->below = op;
1582	} else {	1317	}
		1318	else
		1319	{
		1320	top = ms.bot;
		1321
1583	/* If there are other objects, then */	1322	/* If there are other objects, then */
1584	if((! (flag & INS_MAP_LOAD)) && ((top=GET_MAP_OB(op->map,op->x,op->y))!=NULL)) {	1323	if ((!(flag & INS_MAP_LOAD)) && top)
1585	object *last=NULL;	1324	{
1586	/*	1325	object *last = 0;
		1326
		1327	/*
1587	* If there are multiple objects on this space, we do some trickier handling.	1328	* If there are multiple objects on this space, we do some trickier handling.
1588	* We've already dealt with merging if appropriate.	1329	* We've already dealt with merging if appropriate.
1589	* Generally, we want to put the new object on top. But if	1330	* Generally, we want to put the new object on top. But if
1590	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last	1331	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last
1591	* floor, we want to insert above that and no further.	1332	* floor, we want to insert above that and no further.
1592	* Also, if there are spell objects on this space, we stop processing	1333	* Also, if there are spell objects on this space, we stop processing
1593	* once we get to them. This reduces the need to traverse over all of	1334	* once we get to them. This reduces the need to traverse over all of
1594	* them when adding another one - this saves quite a bit of cpu time	1335	* them when adding another one - this saves quite a bit of cpu time
1595	* when lots of spells are cast in one area. Currently, it is presumed	1336	* when lots of spells are cast in one area. Currently, it is presumed
1596	* that flying non pickable objects are spell objects.	1337	* that flying non pickable objects are spell objects.
1597	*/	1338	*/
		1339	for (top = ms.bot; top; top = top->above)
		1340	{
		1341	if (QUERY_FLAG (top, FLAG_IS_FLOOR) || QUERY_FLAG (top, FLAG_OVERLAY_FLOOR))
		1342	floor = top;
1598		1343
1599	while (top != NULL) {	1344	if (QUERY_FLAG (top, FLAG_NO_PICK) && (top->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (top, FLAG_IS_FLOOR))
1600	if (QUERY_FLAG(top, FLAG_IS_FLOOR) ||
1601	QUERY_FLAG(top, FLAG_OVERLAY_FLOOR)) floor = top;
1602	if (QUERY_FLAG(top, FLAG_NO_PICK)
1603	&& (top->move_type & (MOVE_FLY_LOW |MOVE_FLY_HIGH))
1604	&& !QUERY_FLAG(top, FLAG_IS_FLOOR))
1605	{	1345	{
1606	/* We insert above top, so we want this object below this */	1346	/* We insert above top, so we want this object below this */
1607	top=top->below;	1347	top = top->below;
1608	break;	1348	break;
1609	}	1349	}
1610	last = top;	1350
1611	top = top->above;	1351	last = top;
1612	}	1352	}
		1353
1613	/* Don't want top to be NULL, so set it to the last valid object */	1354	/* Don't want top to be NULL, so set it to the last valid object */
1614	top = last;	1355	top = last;
1615		1356
1616	/* We let update_position deal with figuring out what the space	1357	/* We let update_position deal with figuring out what the space
1617	* looks like instead of lots of conditions here.	1358	* looks like instead of lots of conditions here.
1618	* makes things faster, and effectively the same result.	1359	* makes things faster, and effectively the same result.
1619	*/	1360	*/
1620		1361
1621	/* Have object 'fall below' other objects that block view.	1362	/* Have object 'fall below' other objects that block view.
1622	* Unless those objects are exits, type 66	1363	* Unless those objects are exits.
1623	* If INS_ON_TOP is used, don't do this processing	1364	* If INS_ON_TOP is used, don't do this processing
1624	* Need to find the object that in fact blocks view, otherwise	1365	* Need to find the object that in fact blocks view, otherwise
1625	* stacking is a bit odd.	1366	* stacking is a bit odd.
1626	*/	1367	*/
1627	if (!(flag & INS_ON_TOP) &&	1368	if (!(flag & INS_ON_TOP)
1628	(get_map_flags(op->map, NULL, op->x, op->y, NULL, NULL) & P_BLOCKSVIEW) &&	1369	&& ms.flags () & P_BLOCKSVIEW
1629	(op->face && !op->face->visibility)) {	1370	&& (op->face && !faces [op->face].visibility))
		1371	{
1630	for (last=top; last != floor; last=last->below)	1372	for (last = top; last != floor; last = last->below)
1631	if (QUERY_FLAG(last, FLAG_BLOCKSVIEW)&&(last->type != EXIT)) break;	1373	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))
		1374	break;
		1375
1632	/* Check to see if we found the object that blocks view,	1376	/* Check to see if we found the object that blocks view,
1633	* and make sure we have a below pointer for it so that	1377	* and make sure we have a below pointer for it so that
1634	* we can get inserted below this one, which requires we	1378	* we can get inserted below this one, which requires we
1635	* set top to the object below us.	1379	* set top to the object below us.
1636	*/	1380	*/
1637	if (last && last->below && last != floor) top=last->below;	1381	if (last && last->below && last != floor)
1638	}	1382	top = last->below;
1639	} /* If objects on this space */	1383	}
		1384	} /* If objects on this space */
		1385
1640	if (flag & INS_MAP_LOAD)	1386	if (flag & INS_MAP_LOAD)
1641	top = GET_MAP_TOP(op->map,op->x,op->y);	1387	top = ms.top;
		1388
1642	if (flag & INS_ABOVE_FLOOR_ONLY) top = floor;	1389	if (flag & INS_ABOVE_FLOOR_ONLY)
		1390	top = floor;
1643		1391
1644	/* Top is the object that our object (op) is going to get inserted above.	1392	/* Top is the object that our object (op) is going to get inserted above.
1645	*/	1393	*/
1646		1394
1647	/* First object on this space */	1395	/* First object on this space */
1648	if (!top) {	1396	if (!top)
1649	op->above = GET_MAP_OB(op->map, op->x, op->y);	1397	{
1650	if (op->above) op->above->below = op;	1398	op->above = ms.bot;
1651	op->below = NULL;	1399
1652	SET_MAP_OB(op->map, op->x, op->y, op);	1400	if (op->above)
1653	} else { /* get inserted into the stack above top */	1401	op->above->below = op;
		1402
		1403	op->below = 0;
		1404	ms.bot = op;
		1405	}
		1406	else
		1407	{ /* get inserted into the stack above top */
1654	op->above = top->above;	1408	op->above = top->above;
1655	if (op->above) op->above->below = op;	1409
		1410	if (op->above)
		1411	op->above->below = op;
		1412
1656	op->below = top;	1413	op->below = top;
1657	top->above = op;	1414	top->above = op;
1658	}	1415	}
1659	if (op->above==NULL)	1416
1660	SET_MAP_TOP(op->map,op->x, op->y, op);	1417	if (!op->above)
		1418	ms.top = op;
1661	} /* else not INS_BELOW_ORIGINATOR */	1419	} /* else not INS_BELOW_ORIGINATOR */
1662		1420
1663	if(op->type==PLAYER)	1421	if (op->type == PLAYER)
		1422	{
1664	op->contr->do_los=1;	1423	op->contr->do_los = 1;
		1424	++op->map->players;
		1425	op->map->touch ();
		1426	}
1665		1427
		1428	op->map->dirty = true;
		1429
1666	/* If we have a floor, we know the player, if any, will be above	1430	/* If we have a floor, we know the player, if any, will be above
1667	* it, so save a few ticks and start from there.	1431	* it, so save a few ticks and start from there.
1668	*/	1432	*/
1669	if (!(flag & INS_MAP_LOAD))	1433	if (!(flag & INS_MAP_LOAD))
1670	for(tmp=floor?floor:GET_MAP_OB(op->map,op->x,op->y);tmp!=NULL;tmp=tmp->above) {	1434	if (object *pl = ms.player ())
1671	if (tmp->type == PLAYER)	1435	if (pl->contr->ns)
1672	tmp->contr->socket.update_look=1;	1436	pl->contr->ns->floorbox_update ();
1673	}
1674		1437
1675	/* If this object glows, it may affect lighting conditions that are	1438	/* If this object glows, it may affect lighting conditions that are
1676	* visible to others on this map. But update_all_los is really	1439	* visible to others on this map. But update_all_los is really
1677	* an inefficient way to do this, as it means los for all players	1440	* an inefficient way to do this, as it means los for all players
1678	* on the map will get recalculated. The players could very well	1441	* on the map will get recalculated. The players could very well
1679	* be far away from this change and not affected in any way -	1442	* be far away from this change and not affected in any way -
1680	* this should get redone to only look for players within range,	1443	* this should get redone to only look for players within range,
1681	* or just updating the P_NEED_UPDATE for spaces within this area	1444	* or just updating the P_UPTODATE for spaces within this area
1682	* of effect may be sufficient.	1445	* of effect may be sufficient.
1683	*/	1446	*/
1684	if(MAP_DARKNESS(op->map) && (op->glow_radius != 0))	1447	if (op->map->darkness && (op->glow_radius != 0))
1685	update_all_los(op->map, op->x, op->y);	1448	update_all_los (op->map, op->x, op->y);
1686		1449
1687
1688	/* updates flags (blocked, alive, no magic, etc) for this map space */	1450	/* updates flags (blocked, alive, no magic, etc) for this map space */
1689	update_object(op,UP_OBJ_INSERT);	1451	update_object (op, UP_OBJ_INSERT);
1690		1452
		1453	INVOKE_OBJECT (INSERT, op);
1691		1454
1692	/* Don't know if moving this to the end will break anything. However,	1455	/* Don't know if moving this to the end will break anything. However,
1693	* we want to have update_look set above before calling this.	1456	* we want to have floorbox_update called before calling this.
1694	*	1457	*
1695	* check_move_on() must be after this because code called from	1458	* check_move_on() must be after this because code called from
1696	* check_move_on() depends on correct map flags (so functions like	1459	* check_move_on() depends on correct map flags (so functions like
1697	* blocked() and wall() work properly), and these flags are updated by	1460	* blocked() and wall() work properly), and these flags are updated by
1698	* update_object().	1461	* update_object().
1699	*/	1462	*/
1700		1463
1701	/* if this is not the head or flag has been passed, don't check walk on status */	1464	/* if this is not the head or flag has been passed, don't check walk on status */
1702
1703	if (!(flag & INS_NO_WALK_ON) && !op->head) {	1465	if (!(flag & INS_NO_WALK_ON) && op->head_ () == op)
		1466	{
1704	if (check_move_on(op, originator))	1467	if (check_move_on (op, originator))
1705	return NULL;	1468	return 0;
1706		1469
1707	/* If we are a multi part object, lets work our way through the check	1470	/* If we are a multi part object, lets work our way through the check
1708	* walk on's.	1471	* walk on's.
1709	*/	1472	*/
1710	for (tmp=op->more; tmp!=NULL; tmp=tmp->more)	1473	for (object *tmp = op->more; tmp; tmp = tmp->more)
1711	if (check_move_on (tmp, originator))	1474	if (check_move_on (tmp, originator))
1712	return NULL;	1475	return 0;
1713	}	1476	}
		1477
1714	return op;	1478	return op;
1715	}	1479	}
1716		1480
1717	/* this function inserts an object in the map, but if it	1481	/* this function inserts an object in the map, but if it
1718	* finds an object of its own type, it'll remove that one first.	1482	* finds an object of its own type, it'll remove that one first.
1719	* op is the object to insert it under: supplies x and the map.	1483	* op is the object to insert it under: supplies x and the map.
1720	*/	1484	*/
		1485	void
1721	void replace_insert_ob_in_map(const char *arch_string, object *op) {	1486	replace_insert_ob_in_map (const char *arch_string, object *op)
1722	object *tmp;	1487	{
1723	object *tmp1;	1488	object *tmp, *tmp1;
1724		1489
1725	/* first search for itself and remove any old instances */	1490	/* first search for itself and remove any old instances */
1726		1491
1727	for(tmp=GET_MAP_OB(op->map,op->x,op->y); tmp!=NULL; tmp=tmp->above) {	1492	for (tmp = op->ms ().bot; tmp; tmp = tmp->above)
1728	if(!strcmp(tmp->arch->name,arch_string)) /* same archetype */ {	1493	if (!strcmp (tmp->arch->archname, arch_string)) /* same archetype */
1729	remove_ob(tmp);	1494	tmp->destroy ();
1730	free_object(tmp);
1731	}
1732	}
1733		1495
1734	tmp1=arch_to_object(find_archetype(arch_string));	1496	tmp1 = arch_to_object (archetype::find (arch_string));
1735		1497
1736		1498	tmp1->x = op->x;
1737	tmp1->x = op->x; tmp1->y = op->y;	1499	tmp1->y = op->y;
1738	insert_ob_in_map(tmp1,op->map,op,0);	1500	insert_ob_in_map (tmp1, op->map, op, 0);
1739	}	1501	}
		1502
		1503	object *
		1504	object::insert_at (object *where, object *originator, int flags)
		1505	{
		1506	return where->map->insert (this, where->x, where->y, originator, flags);
		1507	}
1740		1508
1741	/*	1509	/*
1742	* get_split_ob(ob,nr) splits up ob into two parts. The part which	1510	* get_split_ob(ob,nr) splits up ob into two parts. The part which
1743	* is returned contains nr objects, and the remaining parts contains	1511	* is returned contains nr objects, and the remaining parts contains
1744	* the rest (or is removed and freed if that number is 0).	1512	* the rest (or is removed and freed if that number is 0).
1745	* On failure, NULL is returned, and the reason put into the	1513	* On failure, NULL is returned, and the reason put into the
1746	* global static errmsg array.	1514	* global static errmsg array.
1747	*/	1515	*/
1748		1516	object *
1749	object *get_split_ob(object *orig_ob, uint32 nr) {	1517	get_split_ob (object *orig_ob, uint32 nr)
		1518	{
1750	object *newob;	1519	object *newob;
1751	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);	1520	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);
1752		1521
1753	if(orig_ob->nrof<nr) {	1522	if (orig_ob->nrof < nr)
1754	sprintf(errmsg,"There are only %d %ss.",
1755	orig_ob->nrof?orig_ob->nrof:1, orig_ob->name);
1756	return NULL;
1757	}	1523	{
		1524	sprintf (errmsg, "There are only %d %ss.", orig_ob->nrof ? orig_ob->nrof : 1, &orig_ob->name);
		1525	return NULL;
		1526	}
		1527
1758	newob = object_create_clone(orig_ob);	1528	newob = object_create_clone (orig_ob);
		1529
1759	if((orig_ob->nrof-=nr)<1) {	1530	if ((orig_ob->nrof -= nr) < 1)
1760	if ( ! is_removed)	1531	orig_ob->destroy (1);
1761	remove_ob(orig_ob);
1762	free_object2(orig_ob, 1);
1763	}
1764	else if ( ! is_removed) {	1532	else if (!is_removed)
		1533	{
1765	if(orig_ob->env!=NULL)	1534	if (orig_ob->env != NULL)
1766	sub_weight (orig_ob->env,orig_ob->weight*nr);	1535	sub_weight (orig_ob->env, orig_ob->weight * nr);
1767	if (orig_ob->env == NULL && orig_ob->map->in_memory!=MAP_IN_MEMORY) {	1536	if (orig_ob->env == NULL && orig_ob->map->in_memory != MAP_IN_MEMORY)
		1537	{
1768	strcpy(errmsg, "Tried to split object whose map is not in memory.");	1538	strcpy (errmsg, "Tried to split object whose map is not in memory.");
1769	LOG(llevDebug,
1770	"Error, Tried to split object whose map is not in memory.\n");	1539	LOG (llevDebug, "Error, Tried to split object whose map is not in memory.\n");
1771	return NULL;	1540	return NULL;
1772	}	1541	}
1773	}	1542	}
		1543
1774	newob->nrof=nr;	1544	newob->nrof = nr;
1775		1545
1776	return newob;	1546	return newob;
1777	}	1547	}
1778		1548
1779	/*	1549	/*
1780	* decrease_ob_nr(object, number) decreases a specified number from	1550	* decrease_ob_nr(object, number) decreases a specified number from
1781	* the amount of an object. If the amount reaches 0, the object	1551	* the amount of an object. If the amount reaches 0, the object
1782	* is subsequently removed and freed.	1552	* is subsequently removed and freed.
1783	*	1553	*
1784	* Return value: 'op' if something is left, NULL if the amount reached 0	1554	* Return value: 'op' if something is left, NULL if the amount reached 0
1785	*/	1555	*/
1786		1556	object *
1787	object *decrease_ob_nr (object *op, uint32 i)	1557	decrease_ob_nr (object *op, uint32 i)
1788	{	1558	{
1789	object *tmp;	1559	object *tmp;
1790	player *pl;
1791		1560
1792	if (i == 0) /* objects with op->nrof require this check */	1561	if (i == 0) /* objects with op->nrof require this check */
1793	return op;	1562	return op;
1794		1563
1795	if (i > op->nrof)	1564	if (i > op->nrof)
1796	i = op->nrof;	1565	i = op->nrof;
1797		1566
1798	if (QUERY_FLAG (op, FLAG_REMOVED))	1567	if (QUERY_FLAG (op, FLAG_REMOVED))
		1568	op->nrof -= i;
		1569	else if (op->env)
		1570	{
		1571	/* is this object in the players inventory, or sub container
		1572	* therein?
		1573	*/
		1574	tmp = op->in_player ();
		1575	/* nope. Is this a container the player has opened?
		1576	* If so, set tmp to that player.
		1577	* IMO, searching through all the players will mostly
		1578	* likely be quicker than following op->env to the map,
		1579	* and then searching the map for a player.
		1580	*/
		1581	if (!tmp)
		1582	for_all_players (pl)
		1583	if (pl->ob->container == op->env)
		1584	{
		1585	tmp = pl->ob;
		1586	break;
		1587	}
		1588
		1589	if (i < op->nrof)
		1590	{
		1591	sub_weight (op->env, op->weight * i);
		1592	op->nrof -= i;
		1593	if (tmp)
		1594	esrv_send_item (tmp, op);
		1595	}
		1596	else
		1597	{
		1598	op->remove ();
		1599	op->nrof = 0;
		1600	if (tmp)
		1601	esrv_del_item (tmp->contr, op->count);
		1602	}
1799	{	1603	}
		1604	else
		1605	{
		1606	object *above = op->above;
		1607
		1608	if (i < op->nrof)
1800	op->nrof -= i;	1609	op->nrof -= i;
1801	}
1802	else if (op->env != NULL)
1803	{
1804	/* is this object in the players inventory, or sub container
1805	* therein?
1806	*/
1807	tmp = is_player_inv (op->env);
1808	/* nope. Is this a container the player has opened?
1809	* If so, set tmp to that player.
1810	* IMO, searching through all the players will mostly
1811	* likely be quicker than following op->env to the map,
1812	* and then searching the map for a player.
1813	*/
1814	if (!tmp) {
1815	for (pl=first_player; pl; pl=pl->next)
1816	if (pl->ob->container == op->env) break;
1817	if (pl) tmp=pl->ob;
1818	else tmp=NULL;
1819	}
1820
1821	if (i < op->nrof) {
1822	sub_weight (op->env, op->weight * i);
1823	op->nrof -= i;
1824	if (tmp) {
1825	esrv_send_item(tmp, op);
1826	}
1827	} else {	1610	else
		1611	{
1828	remove_ob (op);	1612	op->remove ();
1829	op->nrof = 0;	1613	op->nrof = 0;
1830	if (tmp) {
1831	esrv_del_item(tmp->contr, op->count);
1832	}
1833	}	1614	}
1834	}
1835	else
1836	{
1837	object *above = op->above;
1838		1615
1839	if (i < op->nrof) {
1840	op->nrof -= i;
1841	} else {
1842	remove_ob (op);
1843	op->nrof = 0;
1844	}
1845	/* Since we just removed op, op->above is null */	1616	/* Since we just removed op, op->above is null */
1846	for (tmp = above; tmp != NULL; tmp = tmp->above)	1617	for (tmp = above; tmp; tmp = tmp->above)
1847	if (tmp->type == PLAYER) {	1618	if (tmp->type == PLAYER)
		1619	{
1848	if (op->nrof)	1620	if (op->nrof)
1849	esrv_send_item(tmp, op);	1621	esrv_send_item (tmp, op);
1850	else	1622	else
1851	esrv_del_item(tmp->contr, op->count);	1623	esrv_del_item (tmp->contr, op->count);
1852	}	1624	}
1853	}	1625	}
1854		1626
1855	if (op->nrof) {	1627	if (op->nrof)
1856	return op;	1628	return op;
1857	} else {	1629	else
1858	free_object (op);	1630	{
		1631	op->destroy ();
1859	return NULL;	1632	return 0;
1860	}	1633	}
1861	}	1634	}
1862		1635
1863	/*	1636	/*
1864	* add_weight(object, weight) adds the specified weight to an object,	1637	* add_weight(object, weight) adds the specified weight to an object,
1865	* and also updates how much the environment(s) is/are carrying.	1638	* and also updates how much the environment(s) is/are carrying.
1866	*/	1639	*/
1867		1640	void
1868	void add_weight (object *op, signed long weight) {	1641	add_weight (object *op, signed long weight)
		1642	{
1869	while (op!=NULL) {	1643	while (op != NULL)
		1644	{
1870	if (op->type == CONTAINER) {	1645	if (op->type == CONTAINER)
1871	weight=(signed long)(weight*(100-op->stats.Str)/100);	1646	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1872	}	1647
1873	op->carrying+=weight;	1648	op->carrying += weight;
1874	op=op->env;	1649	op = op->env;
1875	}	1650	}
1876	}	1651	}
1877		1652
		1653	object *
		1654	insert_ob_in_ob (object *op, object *where)
		1655	{
		1656	if (!where)
		1657	{
		1658	char *dump = dump_object (op);
		1659	LOG (llevError, "Trying to put object in NULL.\n%s\n", dump);
		1660	free (dump);
		1661	return op;
		1662	}
		1663
		1664	if (where->head_ () != where)
		1665	{
		1666	LOG (llevError | logBacktrace, "Warning: Tried to insert object into wrong part of multipart object.\n");
		1667	where = where->head;
		1668	}
		1669
		1670	return where->insert (op);
		1671	}
		1672
1878	/*	1673	/*
1879	* insert_ob_in_ob(op,environment):	1674	* env->insert (op)
1880	* This function inserts the object op in the linked list	1675	* This function inserts the object op in the linked list
1881	* inside the object environment.	1676	* inside the object environment.
1882	*	1677	*
1883	* Eneq(@csd.uu.se): Altered insert_ob_in_ob to make things picked up enter
1884	* the inventory at the last position or next to other objects of the same
1885	* type.
1886	* Frank: Now sorted by type, archetype and magic!
1887	*
1888	* The function returns now pointer to inserted item, and return value can	1678	* The function returns now pointer to inserted item, and return value can
1889	* be != op, if items are merged. -Tero	1679	* be != op, if items are merged. -Tero
1890	*/	1680	*/
1891		1681	object *
1892	object *insert_ob_in_ob(object *op,object *where) {	1682	object::insert (object *op)
		1683	{
1893	object *tmp, *otmp;	1684	object *tmp, *otmp;
1894		1685
1895	if(!QUERY_FLAG(op,FLAG_REMOVED)) {	1686	if (!QUERY_FLAG (op, FLAG_REMOVED))
1896	dump_object(op);	1687	op->remove ();
1897	LOG(llevError,"Trying to insert (ob) inserted object.\n%s\n", errmsg);	1688
1898	return op;
1899	}
1900	if(where==NULL) {
1901	dump_object(op);
1902	LOG(llevError,"Trying to put object in NULL.\n%s\n", errmsg);
1903	return op;
1904	}
1905	if (where->head) {
1906	LOG(llevDebug,
1907	"Warning: Tried to insert object wrong part of multipart object.\n");
1908	where = where->head;
1909	}
1910	if (op->more) {	1689	if (op->more)
		1690	{
1911	LOG(llevError, "Tried to insert multipart object %s (%d)\n",	1691	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);
1912	op->name, op->count);
1913	return op;	1692	return op;
1914	}	1693	}
		1694
1915	CLEAR_FLAG(op, FLAG_OBJ_ORIGINAL);	1695	CLEAR_FLAG (op, FLAG_OBJ_ORIGINAL);
1916	CLEAR_FLAG(op, FLAG_REMOVED);	1696	CLEAR_FLAG (op, FLAG_REMOVED);
1917	if(op->nrof) {	1697	if (op->nrof)
		1698	{
1918	for(tmp=where->inv;tmp!=NULL;tmp=tmp->below)	1699	for (tmp = inv; tmp != NULL; tmp = tmp->below)
1919	if ( CAN_MERGE(tmp,op) ) {	1700	if (object::can_merge (tmp, op))
		1701	{
1920	/* return the original object and remove inserted object	1702	/* return the original object and remove inserted object
1921	(client needs the original object) */	1703	(client needs the original object) */
1922	tmp->nrof += op->nrof;	1704	tmp->nrof += op->nrof;
1923	/* Weight handling gets pretty funky. Since we are adding to	1705	/* Weight handling gets pretty funky. Since we are adding to
1924	* tmp->nrof, we need to increase the weight.	1706	* tmp->nrof, we need to increase the weight.
1925	*/	1707	*/
1926	add_weight (where, op->weight*op->nrof);	1708	add_weight (this, op->weight * op->nrof);
1927	SET_FLAG(op, FLAG_REMOVED);	1709	SET_FLAG (op, FLAG_REMOVED);
1928	free_object(op); /* free the inserted object */	1710	op->destroy (); /* free the inserted object */
1929	op = tmp;	1711	op = tmp;
1930	remove_ob (op); /* and fix old object's links */	1712	op->remove (); /* and fix old object's links */
1931	CLEAR_FLAG(op, FLAG_REMOVED);	1713	CLEAR_FLAG (op, FLAG_REMOVED);
1932	break;	1714	break;
1933	}	1715	}
1934		1716
1935	/* I assume combined objects have no inventory	1717	/* I assume combined objects have no inventory
1936	* We add the weight - this object could have just been removed	1718	* We add the weight - this object could have just been removed
1937	* (if it was possible to merge). calling remove_ob will subtract	1719	* (if it was possible to merge). calling remove_ob will subtract
1938	* the weight, so we need to add it in again, since we actually do	1720	* the weight, so we need to add it in again, since we actually do
1939	* the linking below	1721	* the linking below
1940	*/	1722	*/
1941	add_weight (where, op->weight*op->nrof);	1723	add_weight (this, op->weight * op->nrof);
		1724	}
1942	} else	1725	else
1943	add_weight (where, (op->weight+op->carrying));	1726	add_weight (this, (op->weight + op->carrying));
1944		1727
1945	otmp=is_player_inv(where);	1728	otmp = this->in_player ();
1946	if (otmp&&otmp->contr!=NULL) {	1729	if (otmp && otmp->contr)
1947	if (!QUERY_FLAG(otmp,FLAG_NO_FIX_PLAYER))	1730	if (!QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1948	fix_player(otmp);	1731	otmp->update_stats ();
1949	}
1950		1732
1951	op->map=NULL;	1733	op->map = 0;
1952	op->env=where;	1734	op->env = this;
1953	op->above=NULL;	1735	op->above = 0;
1954	op->below=NULL;	1736	op->below = 0;
1955	op->x=0,op->y=0;	1737	op->x = 0, op->y = 0;
1956	op->ox=0,op->oy=0;
1957		1738
1958	/* reset the light list and los of the players on the map */	1739	/* reset the light list and los of the players on the map */
1959	if((op->glow_radius!=0)&&where->map)	1740	if ((op->glow_radius != 0) && map)
1960	{	1741	{
1961	#ifdef DEBUG_LIGHTS	1742	#ifdef DEBUG_LIGHTS
1962	LOG(llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n",	1743	LOG (llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n", op->name);
1963	op->name);
1964	#endif /* DEBUG_LIGHTS */	1744	#endif /* DEBUG_LIGHTS */
1965	if (MAP_DARKNESS(where->map)) update_all_los(where->map, where->x, where->y);	1745	if (map->darkness)
		1746	update_all_los (map, x, y);
1966	}	1747	}
1967		1748
1968	/* Client has no idea of ordering so lets not bother ordering it here.	1749	/* Client has no idea of ordering so lets not bother ordering it here.
1969	* It sure simplifies this function...	1750	* It sure simplifies this function...
1970	*/	1751	*/
1971	if (where->inv==NULL)	1752	if (!inv)
1972	where->inv=op;	1753	inv = op;
1973	else {	1754	else
		1755	{
1974	op->below = where->inv;	1756	op->below = inv;
1975	op->below->above = op;	1757	op->below->above = op;
1976	where->inv = op;	1758	inv = op;
1977	}	1759	}
		1760
		1761	INVOKE_OBJECT (INSERT, this);
		1762
1978	return op;	1763	return op;
1979	}	1764	}
1980		1765
1981	/*	1766	/*
1982	* Checks if any objects has a move_type that matches objects	1767	* Checks if any objects has a move_type that matches objects
…		…
1996	*	1781	*
1997	* MSW 2001-07-08: Check all objects on space, not just those below	1782	* MSW 2001-07-08: Check all objects on space, not just those below
1998	* object being inserted. insert_ob_in_map may not put new objects	1783	* object being inserted. insert_ob_in_map may not put new objects
1999	* on top.	1784	* on top.
2000	*/	1785	*/
2001		1786	int
2002	int check_move_on (object *op, object *originator)	1787	check_move_on (object *op, object *originator)
2003	{	1788	{
2004	object *tmp;	1789	object *tmp;
2005	tag_t tag;
2006	mapstruct *m=op->map;	1790	maptile *m = op->map;
2007	int x=op->x, y=op->y;	1791	int x = op->x, y = op->y;
		1792
2008	MoveType move_on, move_slow, move_block;	1793	MoveType move_on, move_slow, move_block;
2009		1794
2010	if(QUERY_FLAG(op,FLAG_NO_APPLY))	1795	if (QUERY_FLAG (op, FLAG_NO_APPLY))
2011	return 0;
2012
2013	tag = op->count;
2014
2015	move_on = GET_MAP_MOVE_ON(op->map, op->x, op->y);
2016	move_slow = GET_MAP_MOVE_SLOW(op->map, op->x, op->y);
2017	move_block = GET_MAP_MOVE_BLOCK(op->map, op->x, op->y);
2018
2019	/* if nothing on this space will slow op down or be applied,
2020	* no need to do checking below. have to make sure move_type
2021	* is set, as lots of objects don't have it set - we treat that
2022	* as walking.
2023	*/
2024	if (op->move_type && !(op->move_type & move_on) && !(op->move_type & move_slow))
2025	return 0;
2026
2027	/* This is basically inverse logic of that below - basically,
2028	* if the object can avoid the move on or slow move, they do so,
2029	* but can't do it if the alternate movement they are using is
2030	* blocked. Logic on this seems confusing, but does seem correct.
2031	*/
2032	if ((op->move_type & ~move_on & ~move_block) != 0 &&
2033	(op->move_type & ~move_slow & ~move_block) != 0) return 0;
2034
2035	/* The objects have to be checked from top to bottom.
2036	* Hence, we first go to the top:
2037	*/
2038
2039	for (tmp=GET_MAP_OB(op->map, op->x, op->y); tmp!=NULL &&
2040	tmp->above!=NULL; tmp=tmp->above) {
2041	/* Trim the search when we find the first other spell effect
2042	* this helps performance so that if a space has 50 spell objects,
2043	* we don't need to check all of them.
2044	*/
2045	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG(tmp, FLAG_NO_PICK)) break;
2046	}
2047	for(;tmp!=NULL; tmp=tmp->below) {
2048	if (tmp == op) continue; /* Can't apply yourself */
2049
2050	/* Check to see if one of the movement types should be slowed down.
2051	* Second check makes sure that the movement types not being slowed
2052	* (~slow_move) is not blocked on this space - just because the
2053	* space doesn't slow down swimming (for example), if you can't actually
2054	* swim on that space, can't use it to avoid the penalty.
2055	*/
2056	if (!QUERY_FLAG(op, FLAG_WIZPASS)) {
2057	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||
2058	((op->move_type & tmp->move_slow) &&
2059	(op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0)) {
2060
2061	float diff;
2062
2063	diff = tmp->move_slow_penalty*FABS(op->speed);
2064	if (op->type == PLAYER) {
2065	if ((QUERY_FLAG(tmp, FLAG_IS_HILLY) && find_skill_by_number(op, SK_CLIMBING)) ||
2066	(QUERY_FLAG(tmp, FLAG_IS_WOODED) && find_skill_by_number(op, SK_WOODSMAN))) {
2067	diff /= 4.0;
2068	}
2069	}
2070	op->speed_left -= diff;
2071	}
2072	}
2073
2074	/* Basically same logic as above, except now for actual apply. */
2075	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||
2076	((op->move_type & tmp->move_on) &&
2077	(op->move_type & ~tmp->move_on & ~tmp->move_block)==0)) {
2078
2079	move_apply(tmp, op, originator);
2080	if (was_destroyed (op, tag))
2081	return 1;
2082
2083	/* what the person/creature stepped onto has moved the object
2084	* someplace new. Don't process any further - if we did,
2085	* have a feeling strange problems would result.
2086	*/
2087	if (op->map != m || op->x != x || op->y != y) return 0;
2088	}
2089	}
2090	return 0;	1796	return 0;
		1797
		1798	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);
		1799	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);
		1800	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);
		1801
		1802	/* if nothing on this space will slow op down or be applied,
		1803	* no need to do checking below. have to make sure move_type
		1804	* is set, as lots of objects don't have it set - we treat that
		1805	* as walking.
		1806	*/
		1807	if (op->move_type && !(op->move_type & move_on) && !(op->move_type & move_slow))
		1808	return 0;
		1809
		1810	/* This is basically inverse logic of that below - basically,
		1811	* if the object can avoid the move on or slow move, they do so,
		1812	* but can't do it if the alternate movement they are using is
		1813	* blocked. Logic on this seems confusing, but does seem correct.
		1814	*/
		1815	if ((op->move_type & ~move_on & ~move_block) != 0 && (op->move_type & ~move_slow & ~move_block) != 0)
		1816	return 0;
		1817
		1818	/* The objects have to be checked from top to bottom.
		1819	* Hence, we first go to the top:
		1820	*/
		1821
		1822	for (tmp = op->ms ().bot; tmp && tmp->above; tmp = tmp->above)
		1823	{
		1824	/* Trim the search when we find the first other spell effect
		1825	* this helps performance so that if a space has 50 spell objects,
		1826	* we don't need to check all of them.
		1827	*/
		1828	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG (tmp, FLAG_NO_PICK))
		1829	break;
		1830	}
		1831
		1832	for (; tmp; tmp = tmp->below)
		1833	{
		1834	if (tmp == op)
		1835	continue; /* Can't apply yourself */
		1836
		1837	/* Check to see if one of the movement types should be slowed down.
		1838	* Second check makes sure that the movement types not being slowed
		1839	* (~slow_move) is not blocked on this space - just because the
		1840	* space doesn't slow down swimming (for example), if you can't actually
		1841	* swim on that space, can't use it to avoid the penalty.
		1842	*/
		1843	if (!QUERY_FLAG (op, FLAG_WIZPASS))
		1844	{
		1845	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||
		1846	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))
		1847	{
		1848
		1849	float
		1850	diff = tmp->move_slow_penalty * fabs (op->speed);
		1851
		1852	if (op->type == PLAYER)
		1853	if ((QUERY_FLAG (tmp, FLAG_IS_HILLY) && find_skill_by_number (op, SK_CLIMBING)) ||
		1854	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))
		1855	diff /= 4.0;
		1856
		1857	op->speed_left -= diff;
		1858	}
		1859	}
		1860
		1861	/* Basically same logic as above, except now for actual apply. */
		1862	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||
		1863	((op->move_type & tmp->move_on) && (op->move_type & ~tmp->move_on & ~tmp->move_block) == 0))
		1864	{
		1865	move_apply (tmp, op, originator);
		1866
		1867	if (op->destroyed ())
		1868	return 1;
		1869
		1870	/* what the person/creature stepped onto has moved the object
		1871	* someplace new. Don't process any further - if we did,
		1872	* have a feeling strange problems would result.
		1873	*/
		1874	if (op->map != m || op->x != x || op->y != y)
		1875	return 0;
		1876	}
		1877	}
		1878
		1879	return 0;
2091	}	1880	}
2092		1881
2093	/*	1882	/*
2094	* present_arch(arch, map, x, y) searches for any objects with	1883	* present_arch(arch, map, x, y) searches for any objects with
2095	* a matching archetype at the given map and coordinates.	1884	* a matching archetype at the given map and coordinates.
2096	* The first matching object is returned, or NULL if none.	1885	* The first matching object is returned, or NULL if none.
2097	*/	1886	*/
2098		1887	object *
2099	object *present_arch(const archetype *at, mapstruct *m, int x, int y) {	1888	present_arch (const archetype *at, maptile *m, int x, int y)
2100	object *tmp;	1889	{
2101	if(m==NULL || out_of_map(m,x,y)) {	1890	if (!m || out_of_map (m, x, y))
		1891	{
2102	LOG(llevError,"Present_arch called outside map.\n");	1892	LOG (llevError, "Present_arch called outside map.\n");
2103	return NULL;	1893	return NULL;
2104	}	1894	}
2105	for(tmp=GET_MAP_OB(m,x,y); tmp != NULL; tmp = tmp->above)	1895
		1896	for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)
2106	if(tmp->arch == at)	1897	if (tmp->arch == at)
2107	return tmp;	1898	return tmp;
		1899
2108	return NULL;	1900	return NULL;
2109	}	1901	}
2110		1902
2111	/*	1903	/*
2112	* present(type, map, x, y) searches for any objects with	1904	* present(type, map, x, y) searches for any objects with
2113	* a matching type variable at the given map and coordinates.	1905	* a matching type variable at the given map and coordinates.
2114	* The first matching object is returned, or NULL if none.	1906	* The first matching object is returned, or NULL if none.
2115	*/	1907	*/
2116		1908	object *
2117	object *present(unsigned char type,mapstruct *m, int x,int y) {	1909	present (unsigned char type, maptile *m, int x, int y)
2118	object *tmp;	1910	{
2119	if(out_of_map(m,x,y)) {	1911	if (out_of_map (m, x, y))
		1912	{
2120	LOG(llevError,"Present called outside map.\n");	1913	LOG (llevError, "Present called outside map.\n");
2121	return NULL;	1914	return NULL;
2122	}	1915	}
2123	for(tmp=GET_MAP_OB(m,x,y);tmp!=NULL;tmp=tmp->above)	1916
		1917	for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)
2124	if(tmp->type==type)	1918	if (tmp->type == type)
2125	return tmp;	1919	return tmp;
		1920
2126	return NULL;	1921	return NULL;
2127	}	1922	}
2128		1923
2129	/*	1924	/*
2130	* present_in_ob(type, object) searches for any objects with	1925	* present_in_ob(type, object) searches for any objects with
2131	* a matching type variable in the inventory of the given object.	1926	* a matching type variable in the inventory of the given object.
2132	* The first matching object is returned, or NULL if none.	1927	* The first matching object is returned, or NULL if none.
2133	*/	1928	*/
2134		1929	object *
2135	object *present_in_ob(unsigned char type, const object *op) {	1930	present_in_ob (unsigned char type, const object *op)
2136	object *tmp;	1931	{
2137	for(tmp=op->inv;tmp!=NULL;tmp=tmp->below)	1932	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
2138	if(tmp->type==type)	1933	if (tmp->type == type)
2139	return tmp;	1934	return tmp;
		1935
2140	return NULL;	1936	return NULL;
2141	}	1937	}
2142		1938
2143	/*	1939	/*
2144	* present_in_ob (type, str, object) searches for any objects with	1940	* present_in_ob (type, str, object) searches for any objects with
…		…
2152	* str is the string to match against. Note that we match against	1948	* str is the string to match against. Note that we match against
2153	* the object name, not the archetype name. this is so that the	1949	* the object name, not the archetype name. this is so that the
2154	* spell code can use one object type (force), but change it's name	1950	* spell code can use one object type (force), but change it's name
2155	* to be unique.	1951	* to be unique.
2156	*/	1952	*/
2157		1953	object *
2158	object *present_in_ob_by_name(int type, const char *str, const object *op) {	1954	present_in_ob_by_name (int type, const char *str, const object *op)
2159	object *tmp;	1955	{
2160
2161	for(tmp=op->inv; tmp!=NULL; tmp=tmp->below) {	1956	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2162	if ((type==-1 || tmp->type==type) && (!strcmp(str, tmp->name)))	1957	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))
2163	return tmp;	1958	return tmp;
2164	}	1959
2165	return NULL;	1960	return 0;
2166	}	1961	}
2167		1962
2168	/*	1963	/*
2169	* present_arch_in_ob(archetype, object) searches for any objects with	1964	* present_arch_in_ob(archetype, object) searches for any objects with
2170	* a matching archetype in the inventory of the given object.	1965	* a matching archetype in the inventory of the given object.
2171	* The first matching object is returned, or NULL if none.	1966	* The first matching object is returned, or NULL if none.
2172	*/	1967	*/
2173		1968	object *
2174	object *present_arch_in_ob(const archetype *at, const object *op) {	1969	present_arch_in_ob (const archetype *at, const object *op)
2175	object *tmp;	1970	{
2176	for(tmp=op->inv;tmp!=NULL;tmp=tmp->below)	1971	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
2177	if( tmp->arch == at)	1972	if (tmp->arch == at)
2178	return tmp;	1973	return tmp;
		1974
2179	return NULL;	1975	return NULL;
2180	}	1976	}
2181		1977
2182	/*	1978	/*
2183	* activate recursively a flag on an object inventory	1979	* activate recursively a flag on an object inventory
2184	*/	1980	*/
		1981	void
2185	void flag_inv(object*op, int flag){	1982	flag_inv (object *op, int flag)
2186	object *tmp;	1983	{
2187	if(op->inv)	1984	if (op->inv)
2188	for(tmp = op->inv; tmp != NULL; tmp = tmp->below){	1985	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
		1986	{
2189	SET_FLAG(tmp, flag);	1987	SET_FLAG (tmp, flag);
2190	flag_inv(tmp,flag);	1988	flag_inv (tmp, flag);
2191	}	1989	}
		1990	}
		1991
2192	}/*	1992	/*
2193	* desactivate recursively a flag on an object inventory	1993	* deactivate recursively a flag on an object inventory
2194	*/	1994	*/
		1995	void
2195	void unflag_inv(object*op, int flag){	1996	unflag_inv (object *op, int flag)
2196	object *tmp;	1997	{
2197	if(op->inv)	1998	if (op->inv)
2198	for(tmp = op->inv; tmp != NULL; tmp = tmp->below){	1999	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
		2000	{
2199	CLEAR_FLAG(tmp, flag);	2001	CLEAR_FLAG (tmp, flag);
2200	unflag_inv(tmp,flag);	2002	unflag_inv (tmp, flag);
2201	}	2003	}
2202	}
2203
2204	/*
2205	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in
2206	* all it's inventory (recursively).
2207	* If checksums are used, a player will get set_cheat called for
2208	* him/her-self and all object carried by a call to this function.
2209	*/
2210
2211	void set_cheat(object *op) {
2212	SET_FLAG(op, FLAG_WAS_WIZ);
2213	flag_inv(op, FLAG_WAS_WIZ);
2214	}	2004	}
2215		2005
2216	/*	2006	/*
2217	* find_free_spot(object, map, x, y, start, stop) will search for	2007	* find_free_spot(object, map, x, y, start, stop) will search for
2218	* a spot at the given map and coordinates which will be able to contain	2008	* a spot at the given map and coordinates which will be able to contain
…		…
2232	* because arch_blocked (now ob_blocked) needs to know the movement type	2022	* because arch_blocked (now ob_blocked) needs to know the movement type
2233	* to know if the space in question will block the object. We can't use	2023	* to know if the space in question will block the object. We can't use
2234	* the archetype because that isn't correct if the monster has been	2024	* the archetype because that isn't correct if the monster has been
2235	* customized, changed states, etc.	2025	* customized, changed states, etc.
2236	*/	2026	*/
2237		2027	int
2238	int find_free_spot(const object *ob, mapstruct *m,int x,int y,int start,int stop) {	2028	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)
		2029	{
2239	int i,index=0, flag;	2030	int index = 0, flag;
2240	static int altern[SIZEOFFREE];	2031	int altern[SIZEOFFREE];
2241		2032
2242	for(i=start;i<stop;i++) {	2033	for (int i = start; i < stop; i++)
		2034	{
2243	flag = ob_blocked(ob,m,x+freearr_x[i],y+freearr_y[i]);	2035	flag = ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]);
2244	if(!flag)	2036	if (!flag)
2245	altern[index++]=i;	2037	altern [index++] = i;
2246		2038
2247	/* Basically, if we find a wall on a space, we cut down the search size.	2039	/* Basically, if we find a wall on a space, we cut down the search size.
2248	* In this way, we won't return spaces that are on another side of a wall.	2040	* In this way, we won't return spaces that are on another side of a wall.
2249	* This mostly work, but it cuts down the search size in all directions -	2041	* This mostly work, but it cuts down the search size in all directions -
2250	* if the space being examined only has a wall to the north and empty	2042	* if the space being examined only has a wall to the north and empty
2251	* spaces in all the other directions, this will reduce the search space	2043	* spaces in all the other directions, this will reduce the search space
2252	* to only the spaces immediately surrounding the target area, and	2044	* to only the spaces immediately surrounding the target area, and
2253	* won't look 2 spaces south of the target space.	2045	* won't look 2 spaces south of the target space.
2254	*/	2046	*/
2255	else if ((flag & AB_NO_PASS) && maxfree[i]<stop)	2047	else if ((flag & P_NO_PASS) && maxfree[i] < stop)
2256	stop=maxfree[i];	2048	stop = maxfree[i];
2257	}	2049	}
2258	if(!index) return -1;
2259	return altern[RANDOM()%index];
2260	}
2261		2050
		2051	if (!index)
		2052	return -1;
		2053
		2054	return altern [rndm (index)];
		2055	}
		2056
2262	/*	2057	/*
2263	* find_first_free_spot(archetype, mapstruct, x, y) works like	2058	* find_first_free_spot(archetype, maptile, x, y) works like
2264	* find_free_spot(), but it will search max number of squares.	2059	* find_free_spot(), but it will search max number of squares.
2265	* But it will return the first available spot, not a random choice.	2060	* But it will return the first available spot, not a random choice.
2266	* Changed 0.93.2: Have it return -1 if there is no free spot available.	2061	* Changed 0.93.2: Have it return -1 if there is no free spot available.
2267	*/	2062	*/
2268		2063	int
2269	int find_first_free_spot(const object *ob, mapstruct *m,int x,int y) {	2064	find_first_free_spot (const object *ob, maptile *m, int x, int y)
2270	int i;	2065	{
2271	for(i=0;i<SIZEOFFREE;i++) {	2066	for (int i = 0; i < SIZEOFFREE; i++)
2272	if(!ob_blocked(ob,m,x+freearr_x[i],y+freearr_y[i]))	2067	if (!ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]))
2273	return i;	2068	return i;
2274	}	2069
2275	return -1;	2070	return -1;
2276	}	2071	}
2277		2072
2278	/*	2073	/*
2279	* The function permute(arr, begin, end) randomly reorders the array	2074	* The function permute(arr, begin, end) randomly reorders the array
2280	* arr[begin..end-1].	2075	* arr[begin..end-1].
		2076	* now uses a fisher-yates shuffle, old permute was broken
2281	*/	2077	*/
		2078	static void
2282	static void permute(int *arr, int begin, int end)	2079	permute (int *arr, int begin, int end)
2283	{	2080	{
2284	int i, j, tmp, len;	2081	arr += begin;
		2082	end -= begin;
2285		2083
2286	len = end-begin;	2084	while (--end)
2287	for(i = begin; i < end; i++)	2085	swap (arr [end], arr [rndm (end + 1)]);
2288	{
2289	j = begin+RANDOM()%len;
2290
2291	tmp = arr[i];
2292	arr[i] = arr[j];
2293	arr[j] = tmp;
2294	}
2295	}	2086	}
2296		2087
2297	/* new function to make monster searching more efficient, and effective!	2088	/* new function to make monster searching more efficient, and effective!
2298	* This basically returns a randomized array (in the passed pointer) of	2089	* This basically returns a randomized array (in the passed pointer) of
2299	* the spaces to find monsters. In this way, it won't always look for	2090	* the spaces to find monsters. In this way, it won't always look for
2300	* monsters to the north first. However, the size of the array passed	2091	* monsters to the north first. However, the size of the array passed
2301	* covers all the spaces, so within that size, all the spaces within	2092	* covers all the spaces, so within that size, all the spaces within
2302	* the 3x3 area will be searched, just not in a predictable order.	2093	* the 3x3 area will be searched, just not in a predictable order.
2303	*/	2094	*/
		2095	void
2304	void get_search_arr(int *search_arr)	2096	get_search_arr (int *search_arr)
2305	{	2097	{
2306	int i;	2098	int i;
2307		2099
2308	for(i = 0; i < SIZEOFFREE; i++)	2100	for (i = 0; i < SIZEOFFREE; i++)
2309	{
2310	search_arr[i] = i;	2101	search_arr[i] = i;
2311	}
2312		2102
2313	permute(search_arr, 1, SIZEOFFREE1+1);	2103	permute (search_arr, 1, SIZEOFFREE1 + 1);
2314	permute(search_arr, SIZEOFFREE1+1, SIZEOFFREE2+1);	2104	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);
2315	permute(search_arr, SIZEOFFREE2+1, SIZEOFFREE);	2105	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);
2316	}	2106	}
2317		2107
2318	/*	2108	/*
2319	* find_dir(map, x, y, exclude) will search some close squares in the	2109	* find_dir(map, x, y, exclude) will search some close squares in the
2320	* given map at the given coordinates for live objects.	2110	* given map at the given coordinates for live objects.
…		…
2325	* Perhaps incorrectly, but I'm making the assumption that exclude	2115	* Perhaps incorrectly, but I'm making the assumption that exclude
2326	* is actually want is going to try and move there. We need this info	2116	* is actually want is going to try and move there. We need this info
2327	* because we have to know what movement the thing looking to move	2117	* because we have to know what movement the thing looking to move
2328	* there is capable of.	2118	* there is capable of.
2329	*/	2119	*/
2330		2120	int
2331	int find_dir(mapstruct *m, int x, int y, object *exclude) {	2121	find_dir (maptile *m, int x, int y, object *exclude)
		2122	{
2332	int i,max=SIZEOFFREE, mflags;	2123	int i, max = SIZEOFFREE, mflags;
		2124
2333	sint16 nx, ny;	2125	sint16 nx, ny;
2334	object *tmp;	2126	object *tmp;
2335	mapstruct *mp;	2127	maptile *mp;
		2128
2336	MoveType blocked, move_type;	2129	MoveType blocked, move_type;
2337		2130
2338	if (exclude && exclude->head) {	2131	if (exclude && exclude->head_ () != exclude)
		2132	{
2339	exclude = exclude->head;	2133	exclude = exclude->head;
2340	move_type = exclude->move_type;	2134	move_type = exclude->move_type;
2341	} else {	2135	}
		2136	else
		2137	{
2342	/* If we don't have anything, presume it can use all movement types. */	2138	/* If we don't have anything, presume it can use all movement types. */
2343	move_type=MOVE_ALL;	2139	move_type = MOVE_ALL;
		2140	}
		2141
		2142	for (i = 1; i < max; i++)
2344	}	2143	{
2345		2144	mp = m;
2346	for(i=1;i<max;i++) {
2347	mp = m;
2348	nx = x + freearr_x[i];	2145	nx = x + freearr_x[i];
2349	ny = y + freearr_y[i];	2146	ny = y + freearr_y[i];
2350		2147
2351	mflags = get_map_flags(m, &mp, nx, ny, &nx, &ny);	2148	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);
		2149
2352	if (mflags & P_OUT_OF_MAP) {	2150	if (mflags & P_OUT_OF_MAP)
2353	max = maxfree[i];	2151	max = maxfree[i];
2354	} else {	2152	else
2355	blocked = GET_MAP_MOVE_BLOCK(mp, nx, ny);	2153	{
		2154	mapspace &ms = mp->at (nx, ny);
2356		2155
		2156	blocked = ms.move_block;
		2157
2357	if ((move_type & blocked) == move_type) {	2158	if ((move_type & blocked) == move_type)
2358	max=maxfree[i];	2159	max = maxfree[i];
2359	} else if (mflags & P_IS_ALIVE) {	2160	else if (mflags & P_IS_ALIVE)
2360	for (tmp=GET_MAP_OB(mp,nx,ny); tmp!= NULL; tmp=tmp->above) {	2161	{
2361	if ((QUERY_FLAG(tmp,FLAG_MONSTER) || tmp->type==PLAYER) &&	2162	for (tmp = ms.bot; tmp; tmp = tmp->above)
2362	(tmp != exclude ||(tmp->head && tmp->head != exclude))) {	2163	if ((tmp->flag [FLAG_MONSTER] || tmp->type == PLAYER)
2363	break;	2164	&& (tmp != exclude || (tmp->head_ () != tmp && tmp->head_ () != exclude)))
2364	}	2165	break;
2365	}	2166
2366	if(tmp) {	2167	if (tmp)
2367	return freedir[i];	2168	return freedir[i];
2368	}	2169	}
		2170	}
2369	}	2171	}
2370	}	2172
2371	}
2372	return 0;	2173	return 0;
2373	}	2174	}
2374		2175
2375	/*	2176	/*
2376	* distance(object 1, object 2) will return the square of the	2177	* distance(object 1, object 2) will return the square of the
2377	* distance between the two given objects.	2178	* distance between the two given objects.
2378	*/	2179	*/
2379		2180	int
2380	int distance(const object *ob1, const object *ob2) {	2181	distance (const object *ob1, const object *ob2)
2381	int i;	2182	{
2382	i= (ob1->x - ob2->x)*(ob1->x - ob2->x)+	2183	return (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);
2383	(ob1->y - ob2->y)*(ob1->y - ob2->y);
2384	return i;
2385	}	2184	}
2386		2185
2387	/*	2186	/*
2388	* find_dir_2(delta-x,delta-y) will return a direction in which	2187	* find_dir_2(delta-x,delta-y) will return a direction in which
2389	* an object which has subtracted the x and y coordinates of another	2188	* an object which has subtracted the x and y coordinates of another
2390	* object, needs to travel toward it.	2189	* object, needs to travel toward it.
2391	*/	2190	*/
2392		2191	int
2393	int find_dir_2(int x, int y) {	2192	find_dir_2 (int x, int y)
		2193	{
2394	int q;	2194	int q;
2395		2195
2396	if(y)	2196	if (y)
2397	q=x*100/y;	2197	q = x * 100 / y;
2398	else if (x)	2198	else if (x)
2399	q= -300*x;	2199	q = -300 * x;
2400	else	2200	else
2401	return 0;	2201	return 0;
2402		2202
2403	if(y>0) {	2203	if (y > 0)
		2204	{
2404	if(q < -242)	2205	if (q < -242)
2405	return 3 ;	2206	return 3;
2406	if (q < -41)	2207	if (q < -41)
2407	return 2 ;	2208	return 2;
2408	if (q < 41)	2209	if (q < 41)
2409	return 1 ;	2210	return 1;
2410	if (q < 242)	2211	if (q < 242)
2411	return 8 ;	2212	return 8;
2412	return 7 ;	2213	return 7;
2413	}	2214	}
2414		2215
2415	if (q < -242)	2216	if (q < -242)
2416	return 7 ;	2217	return 7;
2417	if (q < -41)	2218	if (q < -41)
2418	return 6 ;	2219	return 6;
2419	if (q < 41)	2220	if (q < 41)
2420	return 5 ;	2221	return 5;
2421	if (q < 242)	2222	if (q < 242)
2422	return 4 ;	2223	return 4;
2423		2224
2424	return 3 ;	2225	return 3;
2425	}
2426
2427	/*
2428	* absdir(int): Returns a number between 1 and 8, which represent
2429	* the "absolute" direction of a number (it actually takes care of
2430	* "overflow" in previous calculations of a direction).
2431	*/
2432
2433	int absdir(int d) {
2434	while(d<1) d+=8;
2435	while(d>8) d-=8;
2436	return d;
2437	}	2226	}
2438		2227
2439	/*	2228	/*
2440	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is	2229	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is
2441	* between two directions (which are expected to be absolute (see absdir())	2230	* between two directions (which are expected to be absolute (see absdir())
2442	*/	2231	*/
2443		2232	int
2444	int dirdiff(int dir1, int dir2) {	2233	dirdiff (int dir1, int dir2)
		2234	{
2445	int d;	2235	int d;
		2236
2446	d = abs(dir1 - dir2);	2237	d = abs (dir1 - dir2);
2447	if(d>4)	2238	if (d > 4)
2448	d = 8 - d;	2239	d = 8 - d;
		2240
2449	return d;	2241	return d;
2450	}	2242	}
2451		2243
2452	/* peterm:	2244	/* peterm:
2453	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.	2245	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.
…		…
2456	* This basically means that if direction is 15, then it could either go	2248	* This basically means that if direction is 15, then it could either go
2457	* direction 4, 14, or 16 to get back to where we are.	2249	* direction 4, 14, or 16 to get back to where we are.
2458	* Moved from spell_util.c to object.c with the other related direction	2250	* Moved from spell_util.c to object.c with the other related direction
2459	* functions.	2251	* functions.
2460	*/	2252	*/
2461
2462	int reduction_dir[SIZEOFFREE][3] = {	2253	int reduction_dir[SIZEOFFREE][3] = {
2463	{0,0,0}, /* 0 */	2254	{0, 0, 0}, /* 0 */
2464	{0,0,0}, /* 1 */	2255	{0, 0, 0}, /* 1 */
2465	{0,0,0}, /* 2 */	2256	{0, 0, 0}, /* 2 */
2466	{0,0,0}, /* 3 */	2257	{0, 0, 0}, /* 3 */
2467	{0,0,0}, /* 4 */	2258	{0, 0, 0}, /* 4 */
2468	{0,0,0}, /* 5 */	2259	{0, 0, 0}, /* 5 */
2469	{0,0,0}, /* 6 */	2260	{0, 0, 0}, /* 6 */
2470	{0,0,0}, /* 7 */	2261	{0, 0, 0}, /* 7 */
2471	{0,0,0}, /* 8 */	2262	{0, 0, 0}, /* 8 */
2472	{8,1,2}, /* 9 */	2263	{8, 1, 2}, /* 9 */
2473	{1,2,-1}, /* 10 */	2264	{1, 2, -1}, /* 10 */
2474	{2,10,12}, /* 11 */	2265	{2, 10, 12}, /* 11 */
2475	{2,3,-1}, /* 12 */	2266	{2, 3, -1}, /* 12 */
2476	{2,3,4}, /* 13 */	2267	{2, 3, 4}, /* 13 */
2477	{3,4,-1}, /* 14 */	2268	{3, 4, -1}, /* 14 */
2478	{4,14,16}, /* 15 */	2269	{4, 14, 16}, /* 15 */
2479	{5,4,-1}, /* 16 */	2270	{5, 4, -1}, /* 16 */
2480	{4,5,6}, /* 17 */	2271	{4, 5, 6}, /* 17 */
2481	{6,5,-1}, /* 18 */	2272	{6, 5, -1}, /* 18 */
2482	{6,20,18}, /* 19 */	2273	{6, 20, 18}, /* 19 */
2483	{7,6,-1}, /* 20 */	2274	{7, 6, -1}, /* 20 */
2484	{6,7,8}, /* 21 */	2275	{6, 7, 8}, /* 21 */
2485	{7,8,-1}, /* 22 */	2276	{7, 8, -1}, /* 22 */
2486	{8,22,24}, /* 23 */	2277	{8, 22, 24}, /* 23 */
2487	{8,1,-1}, /* 24 */	2278	{8, 1, -1}, /* 24 */
2488	{24,9,10}, /* 25 */	2279	{24, 9, 10}, /* 25 */
2489	{9,10,-1}, /* 26 */	2280	{9, 10, -1}, /* 26 */
2490	{10,11,-1}, /* 27 */	2281	{10, 11, -1}, /* 27 */
2491	{27,11,29}, /* 28 */	2282	{27, 11, 29}, /* 28 */
2492	{11,12,-1}, /* 29 */	2283	{11, 12, -1}, /* 29 */
2493	{12,13,-1}, /* 30 */	2284	{12, 13, -1}, /* 30 */
2494	{12,13,14}, /* 31 */	2285	{12, 13, 14}, /* 31 */
2495	{13,14,-1}, /* 32 */	2286	{13, 14, -1}, /* 32 */
2496	{14,15,-1}, /* 33 */	2287	{14, 15, -1}, /* 33 */
2497	{33,15,35}, /* 34 */	2288	{33, 15, 35}, /* 34 */
2498	{16,15,-1}, /* 35 */	2289	{16, 15, -1}, /* 35 */
2499	{17,16,-1}, /* 36 */	2290	{17, 16, -1}, /* 36 */
2500	{18,17,16}, /* 37 */	2291	{18, 17, 16}, /* 37 */
2501	{18,17,-1}, /* 38 */	2292	{18, 17, -1}, /* 38 */
2502	{18,19,-1}, /* 39 */	2293	{18, 19, -1}, /* 39 */
2503	{41,19,39}, /* 40 */	2294	{41, 19, 39}, /* 40 */
2504	{19,20,-1}, /* 41 */	2295	{19, 20, -1}, /* 41 */
2505	{20,21,-1}, /* 42 */	2296	{20, 21, -1}, /* 42 */
2506	{20,21,22}, /* 43 */	2297	{20, 21, 22}, /* 43 */
2507	{21,22,-1}, /* 44 */	2298	{21, 22, -1}, /* 44 */
2508	{23,22,-1}, /* 45 */	2299	{23, 22, -1}, /* 45 */
2509	{45,47,23}, /* 46 */	2300	{45, 47, 23}, /* 46 */
2510	{23,24,-1}, /* 47 */	2301	{23, 24, -1}, /* 47 */
2511	{24,9,-1}}; /* 48 */	2302	{24, 9, -1}
		2303	}; /* 48 */
2512		2304
2513	/* Recursive routine to step back and see if we can	2305	/* Recursive routine to step back and see if we can
2514	* find a path to that monster that we found. If not,	2306	* find a path to that monster that we found. If not,
2515	* we don't bother going toward it. Returns 1 if we	2307	* we don't bother going toward it. Returns 1 if we
2516	* can see a direct way to get it	2308	* can see a direct way to get it
2517	* Modified to be map tile aware -.MSW	2309	* Modified to be map tile aware -.MSW
2518	*/	2310	*/
2519		2311	int
2520
2521	int can_see_monsterP(mapstruct *m, int x, int y,int dir) {	2312	can_see_monsterP (maptile *m, int x, int y, int dir)
		2313	{
2522	sint16 dx, dy;	2314	sint16 dx, dy;
2523	int mflags;	2315	int mflags;
2524		2316
		2317	if (dir < 0)
2525	if(dir<0) return 0; /* exit condition: invalid direction */	2318	return 0; /* exit condition: invalid direction */
2526		2319
2527	dx = x + freearr_x[dir];	2320	dx = x + freearr_x[dir];
2528	dy = y + freearr_y[dir];	2321	dy = y + freearr_y[dir];
2529		2322
2530	mflags = get_map_flags(m, &m, dx, dy, &dx, &dy);	2323	mflags = get_map_flags (m, &m, dx, dy, &dx, &dy);
2531		2324
2532	/* This functional arguably was incorrect before - it was	2325	/* This functional arguably was incorrect before - it was
2533	* checking for P_WALL - that was basically seeing if	2326	* checking for P_WALL - that was basically seeing if
2534	* we could move to the monster - this is being more	2327	* we could move to the monster - this is being more
2535	* literal on if we can see it. To know if we can actually	2328	* literal on if we can see it. To know if we can actually
2536	* move to the monster, we'd need the monster passed in or	2329	* move to the monster, we'd need the monster passed in or
2537	* at least its move type.	2330	* at least its move type.
2538	*/	2331	*/
2539	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW)) return 0;	2332	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW))
		2333	return 0;
2540		2334
2541	/* yes, can see. */	2335	/* yes, can see. */
2542	if(dir < 9) return 1;	2336	if (dir < 9)
		2337	return 1;
		2338
2543	return can_see_monsterP(m, x, y, reduction_dir[dir][0]) |	2339	return can_see_monsterP (m, x, y, reduction_dir[dir][0])
2544	can_see_monsterP(m,x,y, reduction_dir[dir][1]) |	2340	| can_see_monsterP (m, x, y, reduction_dir[dir][1])
2545	can_see_monsterP(m,x,y, reduction_dir[dir][2]);	2341	| can_see_monsterP (m, x, y, reduction_dir[dir][2]);
2546	}	2342	}
2547		2343
2548
2549
2550	/*	2344	/*
2551	* can_pick(picker, item): finds out if an object is possible to be	2345	* can_pick(picker, item): finds out if an object is possible to be
2552	* picked up by the picker. Returnes 1 if it can be	2346	* picked up by the picker. Returnes 1 if it can be
2553	* picked up, otherwise 0.	2347	* picked up, otherwise 0.
2554	*	2348	*
…		…
2556	* core dumps if they do.	2350	* core dumps if they do.
2557	*	2351	*
2558	* Add a check so we can't pick up invisible objects (0.93.8)	2352	* Add a check so we can't pick up invisible objects (0.93.8)
2559	*/	2353	*/
2560		2354
		2355	int
2561	int can_pick(const object *who, const object *item) {	2356	can_pick (const object *who, const object *item)
		2357	{
2562	return /*QUERY_FLAG(who,FLAG_WIZ)||*/	2358	return /*QUERY_FLAG(who,FLAG_WIZ)|| */
2563	(item->weight>0&&!QUERY_FLAG(item,FLAG_NO_PICK)&&	2359	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&
2564	!QUERY_FLAG(item,FLAG_ALIVE)&&!item->invisible &&	2360	!QUERY_FLAG (item, FLAG_ALIVE) && !item->invisible && (who->type == PLAYER || item->weight < who->weight / 3));
2565	(who->type==PLAYER||item->weight<who->weight/3));
2566	}	2361	}
2567
2568		2362
2569	/*	2363	/*
2570	* create clone from object to another	2364	* create clone from object to another
2571	*/	2365	*/
		2366	object *
2572	object *object_create_clone (object *asrc) {	2367	object_create_clone (object *asrc)
		2368	{
2573	object *dst = NULL,*tmp,*src,*part,*prev, *item;	2369	object *dst = 0, *tmp, *src, *prev, *item;
2574		2370
2575	if(!asrc) return NULL;	2371	if (!asrc)
2576	src = asrc;	2372	return 0;
2577	if(src->head)	2373
2578	src = src->head;	2374	src = asrc->head_ ();
2579		2375
2580	prev = NULL;	2376	prev = 0;
2581	for(part = src; part; part = part->more) {	2377	for (object *part = src; part; part = part->more)
2582	tmp = get_object();	2378	{
2583	copy_object(part,tmp);	2379	tmp = part->clone ();
2584	tmp->x -= src->x;	2380	tmp->x -= src->x;
2585	tmp->y -= src->y;	2381	tmp->y -= src->y;
		2382
2586	if(!part->head) {	2383	if (!part->head)
		2384	{
2587	dst = tmp;	2385	dst = tmp;
2588	tmp->head = NULL;
2589	} else {
2590	tmp->head = dst;	2386	tmp->head = 0;
2591	}	2387	}
		2388	else
		2389	tmp->head = dst;
		2390
2592	tmp->more = NULL;	2391	tmp->more = 0;
		2392
2593	if(prev)	2393	if (prev)
2594	prev->more = tmp;	2394	prev->more = tmp;
		2395
2595	prev = tmp;	2396	prev = tmp;
2596	}	2397	}
2597	/*** copy inventory ***/	2398
2598	for(item = src->inv; item; item = item->below) {	2399	for (item = src->inv; item; item = item->below)
2599	(void) insert_ob_in_ob(object_create_clone(item),dst);	2400	insert_ob_in_ob (object_create_clone (item), dst);
2600	}
2601		2401
2602	return dst;	2402	return dst;
2603	}
2604
2605	/* return true if the object was destroyed, 0 otherwise */
2606	int was_destroyed (const object *op, tag_t old_tag)
2607	{
2608	/* checking for FLAG_FREED isn't necessary, but makes this function more
2609	* robust */
2610	return op->count != old_tag || QUERY_FLAG (op, FLAG_FREED);
2611	}
2612
2613	/* GROS - Creates an object using a string representing its content. */
2614	/* Basically, we save the content of the string to a temp file, then call */
2615	/* load_object on it. I admit it is a highly inefficient way to make things, */
2616	/* but it was simple to make and allows reusing the load_object function. */
2617	/* Remember not to use load_object_str in a time-critical situation. */
2618	/* Also remember that multiparts objects are not supported for now. */
2619
2620	object* load_object_str(const char *obstr)
2621	{
2622	object *op;
2623	FILE *tempfile;
2624	char filename[MAX_BUF];
2625	sprintf(filename,"%s/cfloadobstr2044",settings.tmpdir);
2626	tempfile=fopen(filename,"w");
2627	if (tempfile == NULL)
2628	{
2629	LOG(llevError,"Error - Unable to access load object temp file\n");
2630	return NULL;
2631	};
2632	fprintf(tempfile,obstr);
2633	fclose(tempfile);
2634
2635	op=get_object();
2636
2637	tempfile=fopen(filename,"r");
2638	if (tempfile == NULL)
2639	{
2640	LOG(llevError,"Error - Unable to read object temp file\n");
2641	return NULL;
2642	};
2643	object_thawer thawer (tempfile);
2644	load_object(thawer,op,LO_NEWFILE,0);
2645	LOG(llevDebug," load str completed, object=%s\n",op->name);
2646	CLEAR_FLAG(op,FLAG_REMOVED);
2647	fclose(tempfile);
2648	return op;
2649	}	2403	}
2650		2404
2651	/* This returns the first object in who's inventory that	2405	/* This returns the first object in who's inventory that
2652	* has the same type and subtype match.	2406	* has the same type and subtype match.
2653	* returns NULL if no match.	2407	* returns NULL if no match.
2654	*/	2408	*/
		2409	object *
2655	object *find_obj_by_type_subtype(const object *who, int type, int subtype)	2410	find_obj_by_type_subtype (const object *who, int type, int subtype)
2656	{	2411	{
2657	object *tmp;
2658
2659	for (tmp=who->inv; tmp; tmp=tmp->below)	2412	for (object *tmp = who->inv; tmp; tmp = tmp->below)
2660	if (tmp->type == type && tmp->subtype == subtype) return tmp;	2413	if (tmp->type == type && tmp->subtype == subtype)
		2414	return tmp;
2661		2415
2662	return NULL;	2416	return 0;
2663	}	2417	}
2664		2418
2665	/* If ob has a field named key, return the link from the list,	2419	/* If ob has a field named key, return the link from the list,
2666	* otherwise return NULL.	2420	* otherwise return NULL.
2667	*	2421	*
2668	* key must be a passed in shared string - otherwise, this won't	2422	* key must be a passed in shared string - otherwise, this won't
2669	* do the desired thing.	2423	* do the desired thing.
2670	*/	2424	*/
		2425	key_value *
2671	key_value * get_ob_key_link(const object * ob, const char * key) {	2426	get_ob_key_link (const object *ob, const char *key)
2672	key_value * link;	2427	{
2673
2674	for (link = ob->key_values; link != NULL; link = link->next) {	2428	for (key_value *link = ob->key_values; link; link = link->next)
2675	if (link->key == key) {	2429	if (link->key == key)
2676	return link;	2430	return link;
2677	}	2431
2678	}	2432	return 0;
2679		2433	}
2680	return NULL;
2681	}
2682		2434
2683	/*	2435	/*
2684	* Returns the value of op has an extra_field for key, or NULL.	2436	* Returns the value of op has an extra_field for key, or NULL.
2685	*	2437	*
2686	* The argument doesn't need to be a shared string.	2438	* The argument doesn't need to be a shared string.
2687	*	2439	*
2688	* The returned string is shared.	2440	* The returned string is shared.
2689	*/	2441	*/
		2442	const char *
2690	const char * get_ob_key_value(const object * op, const char * const key) {	2443	get_ob_key_value (const object *op, const char *const key)
		2444	{
2691	key_value * link;	2445	key_value *link;
2692	const char * canonical_key;	2446	shstr_cmp canonical_key (key);
		2447
		2448	if (!canonical_key)
2693		2449	{
2694	canonical_key = find_string(key);
2695
2696	if (canonical_key == NULL) {
2697	/* 1. There being a field named key on any object	2450	/* 1. There being a field named key on any object
2698	* implies there'd be a shared string to find.	2451	* implies there'd be a shared string to find.
2699	* 2. Since there isn't, no object has this field.	2452	* 2. Since there isn't, no object has this field.
2700	* 3. Therefore, *this* object doesn't have this field.	2453	* 3. Therefore, *this* object doesn't have this field.
2701	*/	2454	*/
2702	return NULL;	2455	return 0;
2703	}	2456	}
2704		2457
2705	/* This is copied from get_ob_key_link() above -	2458	/* This is copied from get_ob_key_link() above -
2706	* only 4 lines, and saves the function call overhead.	2459	* only 4 lines, and saves the function call overhead.
2707	*/	2460	*/
2708	for (link = op->key_values; link != NULL; link = link->next) {	2461	for (link = op->key_values; link; link = link->next)
2709	if (link->key == canonical_key) {	2462	if (link->key == canonical_key)
2710	return link->value;	2463	return link->value;
2711	}
2712	}
2713	return NULL;
2714	}
2715		2464
		2465	return 0;
		2466	}
2716		2467
2717	/*	2468	/*
2718	* Updates the canonical_key in op to value.	2469	* Updates the canonical_key in op to value.
2719	*	2470	*
2720	* canonical_key is a shared string (value doesn't have to be).	2471	* canonical_key is a shared string (value doesn't have to be).
…		…
2722	* Unless add_key is TRUE, it won't add fields, only change the value of existing	2473	* Unless add_key is TRUE, it won't add fields, only change the value of existing
2723	* keys.	2474	* keys.
2724	*	2475	*
2725	* Returns TRUE on success.	2476	* Returns TRUE on success.
2726	*/	2477	*/
		2478	int
2727	int set_ob_key_value_s(object * op, const char * canonical_key, const char * value, int add_key) {	2479	set_ob_key_value_s (object *op, const shstr & canonical_key, const char *value, int add_key)
		2480	{
2728	key_value * field = NULL, *last=NULL;	2481	key_value *field = NULL, *last = NULL;
2729		2482
2730	for (field=op->key_values; field != NULL; field=field->next) {	2483	for (field = op->key_values; field != NULL; field = field->next)
2731	if (field->key != canonical_key) {
2732	last = field;
2733	continue;
2734	}
2735		2484	{
2736	if (field->value) FREE_AND_CLEAR_STR(field->value);	2485	if (field->key != canonical_key)
2737	if (value)	2486	{
2738	field->value = add_string(value);	2487	last = field;
2739	else {	2488	continue;
		2489	}
		2490
		2491	if (value)
		2492	field->value = value;
		2493	else
		2494	{
2740	/* Basically, if the archetype has this key set,	2495	/* Basically, if the archetype has this key set,
2741	* we need to store the null value so when we save	2496	* we need to store the null value so when we save
2742	* it, we save the empty value so that when we load,	2497	* it, we save the empty value so that when we load,
2743	* we get this value back again.	2498	* we get this value back again.
2744	*/	2499	*/
2745	if (get_ob_key_link(&op->arch->clone, canonical_key))	2500	if (get_ob_key_link (op->arch, canonical_key))
2746	field->value = NULL;	2501	field->value = 0;
2747	else {	2502	else
2748	/* Delete this link */	2503	{
2749	if (field->key) FREE_AND_CLEAR_STR(field->key);	2504	if (last)
2750	if (field->value) FREE_AND_CLEAR_STR(field->value);	2505	last->next = field->next;
2751	if (last) last->next = field->next;	2506	else
2752	else op->key_values = field->next;	2507	op->key_values = field->next;
2753	free(field);	2508
2754	}	2509	delete field;
2755	}	2510	}
		2511	}
2756	return TRUE;	2512	return TRUE;
2757	}	2513	}
2758	/* IF we get here, key doesn't exist */	2514	/* IF we get here, key doesn't exist */
2759		2515
2760	/* No field, we'll have to add it. */	2516	/* No field, we'll have to add it. */
2761		2517
2762	if (!add_key) {	2518	if (!add_key)
2763	return FALSE;	2519	return FALSE;
2764	}	2520
2765	/* There isn't any good reason to store a null	2521	/* There isn't any good reason to store a null
2766	* value in the key/value list. If the archetype has	2522	* value in the key/value list. If the archetype has
2767	* this key, then we should also have it, so shouldn't	2523	* this key, then we should also have it, so shouldn't
2768	* be here. If user wants to store empty strings,	2524	* be here. If user wants to store empty strings,
2769	* should pass in ""	2525	* should pass in ""
2770	*/	2526	*/
2771	if (value == NULL) return TRUE;	2527	if (value == NULL)
2772
2773	field = (key_value *) malloc(sizeof(key_value));
2774
2775	field->key = add_refcount(canonical_key);
2776	field->value = add_string(value);
2777	/* Usual prepend-addition. */
2778	field->next = op->key_values;
2779	op->key_values = field;
2780
2781	return TRUE;	2528	return TRUE;
		2529
		2530	field = new key_value;
		2531
		2532	field->key = canonical_key;
		2533	field->value = value;
		2534	/* Usual prepend-addition. */
		2535	field->next = op->key_values;
		2536	op->key_values = field;
		2537
		2538	return TRUE;
2782	}	2539	}
2783		2540
2784	/*	2541	/*
2785	* Updates the key in op to value.	2542	* Updates the key in op to value.
2786	*	2543	*
…		…
2788	* and not add new ones.	2545	* and not add new ones.
2789	* In general, should be little reason FALSE is ever passed in for add_key	2546	* In general, should be little reason FALSE is ever passed in for add_key
2790	*	2547	*
2791	* Returns TRUE on success.	2548	* Returns TRUE on success.
2792	*/	2549	*/
		2550	int
2793	int set_ob_key_value(object * op, const char * key, const char * value, int add_key) {	2551	set_ob_key_value (object *op, const char *key, const char *value, int add_key)
2794	const char * canonical_key = NULL;	2552	{
2795	int floating_ref = FALSE;	2553	shstr key_ (key);
2796	int ret;	2554
		2555	return set_ob_key_value_s (op, key_, value, add_key);
		2556	}
		2557
		2558	object::depth_iterator::depth_iterator (object *container)
		2559	: iterator_base (container)
		2560	{
		2561	while (item->inv)
		2562	item = item->inv;
		2563	}
		2564
		2565	void
		2566	object::depth_iterator::next ()
		2567	{
		2568	if (item->below)
2797		2569	{
2798	/* HACK This mess is to make sure set_ob_value() passes a shared string	2570	item = item->below;
2799	* to get_ob_key_link(), without leaving a leaked refcount.	2571
2800	*/	2572	while (item->inv)
		2573	item = item->inv;
2801		2574	}
2802	canonical_key = find_string(key);	2575	else
2803	if (canonical_key == NULL) {	2576	item = item->env;
2804	canonical_key = add_string(key);	2577	}
2805	floating_ref = TRUE;	2578
2806	}	2579
		2580	const char *
		2581	object::flag_desc (char *desc, int len) const
		2582	{
		2583	char *p = desc;
		2584	bool first = true;
		2585
		2586	*p = 0;
		2587
		2588	for (int i = 0; i < NUM_FLAGS; i++)
2807		2589	{
2808	ret = set_ob_key_value_s(op, canonical_key, value, add_key);	2590	if (len <= 10) // magic constant!
		2591	{
		2592	snprintf (p, len, ",...");
		2593	break;
		2594	}
		2595
		2596	if (flag [i])
		2597	{
		2598	int cnt = snprintf (p, len, "%s%d", first ? "" : ",", i);
		2599	len -= cnt;
		2600	p += cnt;
		2601	first = false;
		2602	}
2809		2603	}
2810	if (floating_ref) {	2604
2811	free_string(canonical_key);	2605	return desc;
2812	}	2606	}
		2607
		2608	// return a suitable string describing an object in enough detail to find it
		2609	const char *
		2610	object::debug_desc (char *info) const
		2611	{
		2612	char flagdesc[512];
		2613	char info2[256 * 4];
		2614	char *p = info;
		2615
		2616	p += snprintf (p, 512, "{cnt:%d,uuid:<1.%" PRIx64 ">,name:\"%s\"%s%s,flags:[%s],type:%d}",
		2617	count, uuid.seq,
		2618	&name,
		2619	title ? "\",title:\"" : "",
		2620	title ? (const char *)title : "",
		2621	flag_desc (flagdesc, 512), type);
		2622
		2623	if (env)
		2624	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));
		2625
		2626	if (map)
		2627	p += snprintf (p, 256, "(on %s@%d+%d)", &map->path, x, y);
		2628
		2629	return info;
		2630	}
		2631
		2632	const char *
		2633	object::debug_desc () const
		2634	{
		2635	static char info[3][256 * 4];
		2636	static int info_idx;
		2637
		2638	return debug_desc (info [++info_idx % 3]);
		2639	}
		2640
		2641	struct region *
		2642	object::region () const
		2643	{
		2644	return map ? map->region (x, y)
		2645	: region::default_region ();
		2646	}
		2647
		2648	const materialtype_t *
		2649	object::dominant_material () const
		2650	{
		2651	if (materialtype_t *mat = name_to_material (materialname))
		2652	return mat;
		2653
		2654	// omfg this is slow, this has to be temporary :)
		2655	shstr unknown ("unknown");
		2656
		2657	return name_to_material (unknown);
		2658	}
		2659
		2660	void
		2661	object::open_container (object *new_container)
		2662	{
		2663	if (container == new_container)
		2664	return;
		2665
		2666	if (object *old_container = container)
2813		2667	{
2814	return ret;	2668	if (INVOKE_OBJECT (CLOSE, old_container, ARG_OBJECT (this)))
		2669	return;
		2670
		2671	#if 0
		2672	// remove the "Close old_container" object.
		2673	if (object *closer = old_container->inv)
		2674	if (closer->type == CLOSE_CON)
		2675	closer->destroy ();
		2676	#endif
		2677
		2678	old_container->flag [FLAG_APPLIED] = 0;
		2679	container = 0;
		2680
		2681	esrv_update_item (UPD_FLAGS, this, old_container);
		2682	new_draw_info_format (NDI_UNIQUE, 0, this, "You close %s.", query_name (old_container));
		2683	}
		2684
		2685	if (new_container)
		2686	{
		2687	if (INVOKE_OBJECT (OPEN, new_container, ARG_OBJECT (this)))
		2688	return;
		2689
		2690	// TODO: this does not seem to serve any purpose anymore?
		2691	#if 0
		2692	// insert the "Close Container" object.
		2693	if (archetype *closer = new_container->other_arch)
		2694	{
		2695	object *closer = arch_to_object (new_container->other_arch);
		2696	closer->flag [FLAG_NO_MAP_SAVE] = 1;
		2697	new_container->insert (closer);
		2698	}
		2699	#endif
		2700
		2701	new_draw_info_format (NDI_UNIQUE, 0, this, "You open %s.", query_name (new_container));
		2702
		2703	new_container->flag [FLAG_APPLIED] = 1;
		2704	container = new_container;
		2705
		2706	esrv_update_item (UPD_FLAGS, this, new_container);
		2707	esrv_send_inventory (this, new_container);
		2708	}
2815	}	2709	}
		2710
		2711

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