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Comparing deliantra/server/common/object.C (file contents):
Revision 1.12 by elmex, Sun Sep 3 14:33:47 2006 UTC vs.
Revision 1.141 by root, Sun Apr 29 21:44:34 2007 UTC

1	/*	1	/*
2	* static char *rcsid_object_c =
3	* "$Id: object.C,v 1.12 2006/09/03 14:33:47 elmex Exp $";
4	*/
5
6	/*
7	CrossFire, A Multiplayer game for X-windows	2	* CrossFire, A Multiplayer game
8		3	*
		4	* Copyright (C) 2005, 2006, 2007 Marc Lehmann & Crossfire+ Development Team
9	Copyright (C) 2001 Mark Wedel & Crossfire Development Team	5	* Copyright (C) 2001 Mark Wedel & Crossfire Development Team
10	Copyright (C) 1992 Frank Tore Johansen	6	* Copyright (C) 1992 Frank Tore Johansen
11		7	*
12	This program is free software; you can redistribute it and/or modify	8	* This program is free software; you can redistribute it and/or modify
13	it under the terms of the GNU General Public License as published by	9	* it under the terms of the GNU General Public License as published by
14	the Free Software Foundation; either version 2 of the License, or	10	* the Free Software Foundation; either version 2 of the License, or
15	(at your option) any later version.	11	* (at your option) any later version.
16		12	*
17	This program is distributed in the hope that it will be useful,	13	* This program is distributed in the hope that it will be useful,
18	but WITHOUT ANY WARRANTY; without even the implied warranty of	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
19	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20	GNU General Public License for more details.	16	* GNU General Public License for more details.
21		17	*
22	You should have received a copy of the GNU General Public License	18	* You should have received a copy of the GNU General Public License
23	along with this program; if not, write to the Free Software	19	* along with this program; if not, write to the Free Software
24	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.	20	* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, 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 at <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>
41	#include <loader.h>	34	#include <loader.h>
42	#ifdef MEMORY_DEBUG	35
43	int nroffreeobjects = 0;	36	#include <bitset>
		37
44	int nrofallocobjects = 0;	38	int nrofallocobjects = 0;
45	#undef OBJ_EXPAND	39	static UUID uuid;
46	#define OBJ_EXPAND 1	40	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		41
53	object *objects; /* Pointer to the list of used objects */	42	objectvec objects;
54	object *free_objects; /* Pointer to the list of unused objects */	43	activevec actives;
55	object *active_objects; /* List of active objects that need to be processed */
56		44
57	short freearr_x[SIZEOFFREE]=	45	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};	46	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]=	47	};
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,	48	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};	49	-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]=	50	};
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,	51	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};	52	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	};
66	int freedir[SIZEOFFREE]= {	54	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,	55	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};	56	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	};
69		58
		59	static void
		60	write_uuid (void)
		61	{
		62	char filename1[MAX_BUF], filename2[MAX_BUF];
		63
		64	sprintf (filename1, "%s/uuid", settings.localdir);
		65	sprintf (filename2, "%s/uuid~", settings.localdir);
		66
		67	FILE *fp;
		68
		69	if (!(fp = fopen (filename2, "w")))
		70	{
		71	LOG (llevError, "ERROR: cannot open %s for writing, unable to write UUID!\n", filename2);
		72	return;
		73	}
		74
		75	fprintf (fp, "<1,%llx>\n", (unsigned long long)uuid.seq + UUID_SKIP * 2);
		76	fclose (fp);
		77	rename (filename2, filename1);
		78	}
		79
		80	static void
		81	read_uuid (void)
		82	{
		83	char filename[MAX_BUF];
		84
		85	sprintf (filename, "%s/uuid", settings.localdir);
		86
		87	FILE *fp;
		88
		89	if (!(fp = fopen (filename, "r")))
		90	{
		91	if (errno == ENOENT)
		92	{
		93	LOG (llevInfo, "RESET uid to 1\n");
		94	uuid.seq = 0;
		95	write_uuid ();
		96	return;
		97	}
		98
		99	LOG (llevError, "FATAL: cannot open %s for reading!\n", filename);
		100	_exit (1);
		101	}
		102
		103	int version;
		104	unsigned long long uid;
		105	if (2 != fscanf (fp, "<%d,%llx>\n", &version, &uid) || version != 1)
		106	{
		107	LOG (llevError, "FATAL: error reading uid from %s!\n", filename);
		108	_exit (1);
		109	}
		110
		111	uuid.seq = uid;
		112	write_uuid ();
		113	LOG (llevDebug, "read UID: %" PRId64 "\n", uid);
		114	fclose (fp);
		115	}
		116
		117	UUID
		118	gen_uuid ()
		119	{
		120	UUID uid;
		121
		122	uid.seq = ++uuid.seq;
		123
		124	if (!(uuid.seq & (UUID_SKIP - 1)))
		125	write_uuid ();
		126
		127	return uid;
		128	}
		129
		130	void
		131	init_uuid ()
		132	{
		133	read_uuid ();
		134	}
70		135
71	/* Returns TRUE if every key_values in wants has a partner with the same value in has. */	136	/* Returns TRUE if every key_values in wants has a partner with the same value in has. */
		137	static int
72	static int compare_ob_value_lists_one(const object * wants, const object * has) {	138	compare_ob_value_lists_one (const object *wants, const object *has)
		139	{
73	key_value * wants_field;	140	key_value *wants_field;
74		141
75	/* n-squared behaviour (see get_ob_key_link()), but I'm hoping both	142	/* 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	143	* objects with lists are rare, and lists stay short. If not, use a
77	* different structure or at least keep the lists sorted...	144	* different structure or at least keep the lists sorted...
78	*/	145	*/
79		146
80	/* For each field in wants, */	147	/* For each field in wants, */
81	for (wants_field = wants->key_values; wants_field != NULL; wants_field = wants_field->next) {	148	for (wants_field = wants->key_values; wants_field; wants_field = wants_field->next)
		149	{
82	key_value * has_field;	150	key_value *has_field;
83		151
84	/* Look for a field in has with the same key. */	152	/* Look for a field in has with the same key. */
85	has_field = get_ob_key_link(has, wants_field->key);	153	has_field = get_ob_key_link (has, wants_field->key);
		154
		155	if (has_field == NULL)
86		156	{
87	if (has_field == NULL) {
88	/* No field with that name. */	157	/* No field with that name. */
89	return FALSE;	158	return FALSE;
90	}
91		159	}
		160
92	/* Found the matching field. */	161	/* Found the matching field. */
93	if (has_field->value != wants_field->value) {	162	if (has_field->value != wants_field->value)
		163	{
94	/* Values don't match, so this half of the comparison is false. */	164	/* Values don't match, so this half of the comparison is false. */
95	return FALSE;	165	return FALSE;
96	}	166	}
97		167
98	/* If we get here, we found a match. Now for the next field in wants. */	168	/* If we get here, we found a match. Now for the next field in wants. */
99	}
100		169	}
		170
101	/* If we get here, every field in wants has a matching field in has. */	171	/* If we get here, every field in wants has a matching field in has. */
102	return TRUE;	172	return TRUE;
103	}	173	}
104		174
105	/* Returns TRUE if ob1 has the same key_values as ob2. */	175	/* Returns TRUE if ob1 has the same key_values as ob2. */
		176	static int
106	static int compare_ob_value_lists(const object * ob1, const object * ob2) {	177	compare_ob_value_lists (const object *ob1, const object *ob2)
		178	{
107	/* However, there may be fields in has which aren't partnered in wants,	179	/* However, there may be fields in has which aren't partnered in wants,
108	* so we need to run the comparison *twice*. :(	180	* so we need to run the comparison *twice*. :(
109	*/	181	*/
110	return compare_ob_value_lists_one(ob1, ob2) && compare_ob_value_lists_one(ob2, ob1);	182	return compare_ob_value_lists_one (ob1, ob2) && compare_ob_value_lists_one (ob2, ob1);
111	}	183	}
112		184
113	/* Function examines the 2 objects given to it, and returns true if	185	/* Function examines the 2 objects given to it, and returns true if
114	* they can be merged together.	186	* they can be merged together.
115	*	187	*
116	* Note that this function appears a lot longer than the macro it	188	* Note that this function appears a lot longer than the macro it
117	* replaces - this is mostly for clarity - a decent compiler should hopefully	189	* replaces - this is mostly for clarity - a decent compiler should hopefully
118	* reduce this to the same efficiency.	190	* reduce this to the same efficiency.
119	*	191	*
120	* Check nrof variable *before* calling CAN_MERGE()	192	* Check nrof variable *before* calling can_merge()
121	*	193	*
122	* Improvements made with merge: Better checking on potion, and also	194	* Improvements made with merge: Better checking on potion, and also
123	* check weight	195	* check weight
124	*/	196	*/
125		197	bool object::can_merge_slow (object *ob1, object *ob2)
126	int CAN_MERGE(object *ob1, object *ob2) {	198	{
127
128	/* A couple quicksanity checks */	199	/* A couple quicksanity checks */
129	if ((ob1 == ob2) || (ob1->type != ob2->type)) return 0;	200	if (ob1 == ob2
		201	|| ob1->type != ob2->type
		202	|| ob1->speed != ob2->speed
		203	|| ob1->value != ob2->value
		204	|| ob1->name != ob2->name)
		205	return 0;
130		206
131	if (ob1->speed != ob2->speed) return 0;	207	//TODO: this ain't working well, use nicer and correct overflow check
132	/* Note sure why the following is the case - either the object has to	208	/* Do not merge objects if nrof would overflow. We use 1UL<<31 since that
133	* be animated or have a very low speed. Is this an attempted monster	209	* value could not be stored in a sint32 (which unfortunately sometimes is
134	* check?	210	* used to store nrof).
135	*/	211	*/
136	if (!QUERY_FLAG(ob1,FLAG_ANIMATE) && FABS((ob1)->speed) > MIN_ACTIVE_SPEED)	212	if (ob1->nrof + ob2->nrof >= 1UL << 31)
		213	return 0;
		214
		215	/* If the objects have been identified, set the BEEN_APPLIED flag.
		216	* This is to the comparison of the flags below will be OK. We
		217	* just can't ignore the been applied or identified flags, as they
		218	* are not equal - just if it has been identified, the been_applied
		219	* flags lose any meaning.
		220	*/
		221	if (QUERY_FLAG (ob1, FLAG_IDENTIFIED))
		222	SET_FLAG (ob1, FLAG_BEEN_APPLIED);
		223
		224	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))
		225	SET_FLAG (ob2, FLAG_BEEN_APPLIED);
		226
		227	if ((ob1->flag ^ ob2->flag).reset (FLAG_INV_LOCKED).reset (FLAG_CLIENT_SENT).any ()
		228	|| ob1->arch != ob2->arch
		229	|| ob1->name != ob2->name
		230	|| ob1->title != ob2->title
		231	|| ob1->msg != ob2->msg
		232	|| ob1->weight != ob2->weight
		233	|| memcmp (&ob1->resist, &ob2->resist, sizeof (ob1->resist))
		234	|| memcmp (&ob1->stats , &ob2->stats , sizeof (ob1->stats) )
		235	|| ob1->attacktype != ob2->attacktype
		236	|| ob1->magic != ob2->magic
		237	|| ob1->slaying != ob2->slaying
		238	|| ob1->skill != ob2->skill
		239	|| ob1->value != ob2->value
		240	|| ob1->animation_id != ob2->animation_id
		241	|| ob1->client_type != ob2->client_type
		242	|| ob1->materialname != ob2->materialname
		243	|| ob1->lore != ob2->lore
		244	|| ob1->subtype != ob2->subtype
		245	|| ob1->move_type != ob2->move_type
		246	|| ob1->move_block != ob2->move_block
		247	|| ob1->move_allow != ob2->move_allow
		248	|| ob1->move_on != ob2->move_on
		249	|| ob1->move_off != ob2->move_off
		250	|| ob1->move_slow != ob2->move_slow
		251	|| ob1->move_slow_penalty != ob2->move_slow_penalty)
		252	return 0;
		253
		254	/* This is really a spellbook check - really, we should
		255	* check all objects in the inventory.
		256	*/
		257	if (ob1->inv || ob2->inv)
		258	{
		259	/* if one object has inventory but the other doesn't, not equiv */
		260	if ((ob1->inv && !ob2->inv) || (ob2->inv && !ob1->inv))
137	return 0;	261	return 0;
138		262
139	/* Do not merge objects if nrof would overflow. We use 1UL<<31 since that	263	/* Now check to see if the two inventory objects could merge */
140	* value could not be stored in a sint32 (which unfortunately sometimes is	264	if (!object::can_merge (ob1->inv, ob2->inv))
141	* used to store nrof).
142	*/
143	if (ob1->nrof+ob2->nrof >= 1UL<<31)
144	return 0;	265	return 0;
145		266
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	267	/* inventory ok - still need to check rest of this object to see
157	* if it is valid.	268	* if it is valid.
158	*/	269	*/
159	}	270	}
160		271
161	/* 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
163	* just can't ignore the been applied or identified flags, as they
164	* are not equal - just if it has been identified, the been_applied
165	* flags lose any meaning.
166	*/
167	if (QUERY_FLAG(ob1, FLAG_IDENTIFIED))
168	SET_FLAG(ob1, FLAG_BEEN_APPLIED);
169
170	if (QUERY_FLAG(ob2, FLAG_IDENTIFIED))
171	SET_FLAG(ob2, FLAG_BEEN_APPLIED);
172
173
174	/* the 0x400000 on flags2 is FLAG_INV_LOCK. I don't think something
175	* being locked in inventory should prevent merging.
176	* 0x4 in flags3 is CLIENT_SENT
177	*/
178	if ((ob1->arch != ob2->arch) ||
179	(ob1->flags[0] != ob2->flags[0]) ||
180	(ob1->flags[1] != ob2->flags[1]) ||
181	((ob1->flags[2] & ~0x400000) != (ob2->flags[2] & ~ 0x400000)) ||
182	((ob1->flags[3] & ~0x4) != (ob2->flags[3] & ~0x4)) ||
183	(ob1->name != ob2->name) ||
184	(ob1->title != ob2->title) ||
185	(ob1->msg != ob2->msg) ||
186	(ob1->weight != ob2->weight) ||
187	(memcmp(&ob1->resist, &ob2->resist, sizeof(ob1->resist))!=0) ||
188	(memcmp(&ob1->stats, &ob2->stats, sizeof(ob1->stats))!=0) ||
189	(ob1->attacktype != ob2->attacktype) ||
190	(ob1->magic != ob2->magic) ||
191	(ob1->slaying != ob2->slaying) ||
192	(ob1->skill != ob2->skill) ||
193	(ob1->value != ob2->value) ||
194	(ob1->animation_id != ob2->animation_id) ||
195	(ob1->client_type != ob2->client_type) ||
196	(ob1->materialname != ob2->materialname) ||
197	(ob1->lore != ob2->lore) ||
198	(ob1->subtype != ob2->subtype) ||
199	(ob1->move_type != ob2->move_type) ||
200	(ob1->move_block != ob2->move_block) ||
201	(ob1->move_allow != ob2->move_allow) ||
202	(ob1->move_on != ob2->move_on) ||
203	(ob1->move_off != ob2->move_off) ||
204	(ob1->move_slow != ob2->move_slow) ||
205	(ob1->move_slow_penalty != ob2->move_slow_penalty)
206	)
207	return 0;
208
209	/* Don't merge objects that are applied. With the new 'body' code,	272	/* 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	273	* 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.	274	* some items equipped, and we don't want those to merge.
212	*/	275	*/
213	if (QUERY_FLAG(ob1, FLAG_APPLIED) || QUERY_FLAG(ob2, FLAG_APPLIED))	276	if (QUERY_FLAG (ob1, FLAG_APPLIED) || QUERY_FLAG (ob2, FLAG_APPLIED))
		277	return 0;
		278
		279	/* Note sure why the following is the case - either the object has to
		280	* be animated or have a very low speed. Is this an attempted monster
		281	* check?
		282	*/
		283	if (!QUERY_FLAG (ob1, FLAG_ANIMATE) && ob1->has_active_speed ())
		284	return 0;
		285
		286	switch (ob1->type)
		287	{
		288	case SCROLL:
		289	if (ob1->level != ob2->level)
		290	return 0;
		291	break;
		292	}
		293
		294	if (ob1->key_values != NULL || ob2->key_values != NULL)
		295	{
		296	/* At least one of these has key_values. */
		297	if ((ob1->key_values == NULL) != (ob2->key_values == NULL))
		298	/* One has fields, but the other one doesn't. */
214	return 0;	299	return 0;
215
216	switch (ob1->type) {
217	case SCROLL:
218	if (ob1->level != ob2->level) return 0;
219	break;
220
221	}
222	if (ob1->key_values != NULL || ob2->key_values != NULL) {
223	/* At least one of these has key_values. */
224	if ((ob1->key_values == NULL) != (ob2->key_values == NULL)) {
225	/* One has fields, but the other one doesn't. */
226	return 0;
227	} else if (!compare_ob_value_lists(ob1, ob2)) {	300	else if (!compare_ob_value_lists (ob1, ob2))
228	return 0;	301	return 0;
229	}	302	}
		303
		304	//TODO: generate an event or call into perl for additional checks
		305	if (ob1->self || ob2->self)
230	}	306	{
		307	ob1->optimise ();
		308	ob2->optimise ();
231		309
		310	if (ob1->self || ob2->self)
		311	return 0;
		312	}
		313
232	/* Everything passes, must be OK. */	314	/* Everything passes, must be OK. */
233	return 1;	315	return 1;
		316	}
		317
		318	void
		319	player::set_range (rangetype r)
		320	{
		321	shoottype = r;
234	}	322	}
235		323
236	/*	324	/*
237	* sum_weight() is a recursive function which calculates the weight	325	* sum_weight() is a recursive function which calculates the weight
238	* an object is carrying. It goes through in figures out how much	326	* an object is carrying. It goes through in figures out how much
239	* containers are carrying, and sums it up.	327	* containers are carrying, and sums it up.
240	*/	328	*/
241	signed long sum_weight(object *op) {	329	long
		330	sum_weight (object *op)
		331	{
242	signed long sum;	332	long sum;
243	object *inv;	333	object *inv;
		334
244	for(sum = 0, inv = op->inv; inv != NULL; inv = inv->below) {	335	for (sum = 0, inv = op->inv; inv != NULL; inv = inv->below)
		336	{
245	if (inv->inv)	337	if (inv->inv)
246	sum_weight(inv);	338	sum_weight (inv);
247	sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1);	339	sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1);
248	}	340	}
		341
249	if (op->type == CONTAINER && op->stats.Str)	342	if (op->type == CONTAINER && op->stats.Str)
250	sum = (sum * (100 - op->stats.Str))/100;	343	sum = (sum * (100 - op->stats.Str)) / 100;
		344
251	if(op->carrying != sum)	345	if (op->carrying != sum)
252	op->carrying = sum;	346	op->carrying = sum;
		347
253	return sum;	348	return sum;
254	}	349	}
255		350
256	/**	351	/**
257	* Return the outermost environment object for a given object.	352	* Return the outermost environment object for a given object.
258	*/	353	*/
259		354
		355	object *
260	object *object_get_env_recursive (object *op) {	356	object_get_env_recursive (object *op)
		357	{
261	while (op->env != NULL)	358	while (op->env != NULL)
262	op = op->env;	359	op = op->env;
263	return op;	360	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	}	361	}
278		362
279	/*	363	/*
280	* Used by: Crossedit: dump. Server DM commands: dumpbelow, dump.	364	* Used by: Crossedit: dump. Server DM commands: dumpbelow, dump.
281	* Some error messages.	365	* Some error messages.
282	* The result of the dump is stored in the static global errmsg array.	366	* The result of the dump is stored in the static global errmsg array.
283	*/	367	*/
284		368	char *
285	void dump_object2(object *op) {
286	errmsg[0] = 0;
287	return;
288	//TODO//D#d#
289	#if 0
290	char *cp;
291	/* object *tmp;*/
292
293	if(op->arch!=NULL) {
294	strcat(errmsg,"arch ");
295	strcat(errmsg,op->arch->name?op->arch->name:"(null)");
296	strcat(errmsg,"\n");
297	if((cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)
298	strcat(errmsg,cp);
299	#if 0
300	/* Don't dump player diffs - they are too long, mostly meaningless, and
301	* will overflow the buffer.
302	* Changed so that we don't dump inventory either. This may
303	* also overflow the buffer.
304	*/
305	if(op->type!=PLAYER && (cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)
306	strcat(errmsg,cp);
307	for (tmp=op->inv; tmp; tmp=tmp->below)
308	dump_object2(tmp);
309	#endif
310	strcat(errmsg,"end\n");
311	} else {
312	strcat(errmsg,"Object ");
313	if (op->name==NULL) strcat(errmsg, "(null)");
314	else strcat(errmsg,op->name);
315	strcat(errmsg,"\n");
316	#if 0
317	if((cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)
318	strcat(errmsg,cp);
319	for (tmp=op->inv; tmp; tmp=tmp->below)
320	dump_object2(tmp);
321	#endif
322	strcat(errmsg,"end\n");
323	}
324	#endif
325	}
326
327	/*
328	* Dumps an object. Returns output in the static global errmsg array.
329	*/
330
331	void dump_object(object *op) {	369	dump_object (object *op)
332	if(op==NULL) {	370	{
333	strcpy(errmsg,"[NULL pointer]");	371	if (!op)
334	return;	372	return strdup ("[NULLOBJ]");
335	}
336	errmsg[0]='\0';
337	dump_object2(op);
338	}
339		373
340	void dump_all_objects(void) {	374	object_freezer freezer;
341	object *op;	375	op->write (freezer);
342	for(op=objects;op!=NULL;op=op->next) {	376	return freezer.as_string ();
343	dump_object(op);
344	fprintf(logfile, "Object %d\n:%s\n", op->count, errmsg);
345	}
346	}	377	}
347		378
348	/*	379	/*
349	* get_nearest_part(multi-object, object 2) returns the part of the	380	* get_nearest_part(multi-object, object 2) returns the part of the
350	* multi-object 1 which is closest to the second object.	381	* multi-object 1 which is closest to the second object.
351	* If it's not a multi-object, it is returned.	382	* If it's not a multi-object, it is returned.
352	*/	383	*/
353		384
		385	object *
354	object *get_nearest_part(object *op, const object *pl) {	386	get_nearest_part (object *op, const object *pl)
		387	{
355	object *tmp,*closest;	388	object *tmp, *closest;
356	int last_dist,i;	389	int last_dist, i;
		390
357	if(op->more==NULL)	391	if (op->more == NULL)
358	return op;	392	return op;
359	for(last_dist=distance(op,pl),closest=op,tmp=op->more;tmp!=NULL;tmp=tmp->more)	393	for (last_dist = distance (op, pl), closest = op, tmp = op->more; tmp != NULL; tmp = tmp->more)
360	if((i=distance(tmp,pl))<last_dist)	394	if ((i = distance (tmp, pl)) < last_dist)
361	closest=tmp,last_dist=i;	395	closest = tmp, last_dist = i;
362	return closest;	396	return closest;
363	}	397	}
364		398
365	/*	399	/*
366	* Returns the object which has the count-variable equal to the argument.	400	* Returns the object which has the count-variable equal to the argument.
367	*/	401	*/
368		402	object *
369	object *find_object(tag_t i) {	403	find_object (tag_t i)
370	object *op;	404	{
371	for(op=objects;op!=NULL;op=op->next)	405	for_all_objects (op)
372	if(op->count==i)	406	if (op->count == i)
373	break;
374	return op;	407	return op;
		408
		409	return 0;
375	}	410	}
376		411
377	/*	412	/*
378	* Returns the first object which has a name equal to the argument.	413	* Returns the first object which has a name equal to the argument.
379	* Used only by the patch command, but not all that useful.	414	* Used only by the patch command, but not all that useful.
380	* Enables features like "patch <name-of-other-player> food 999"	415	* Enables features like "patch <name-of-other-player> food 999"
381	*/	416	*/
382		417	object *
383	object *find_object_name(const char *str) {	418	find_object_name (const char *str)
384	const char *name = shstr::find (str);	419	{
		420	shstr_cmp str_ (str);
385	object *op;	421	object *op;
386	for(op=objects;op!=NULL;op=op->next)	422
		423	for_all_objects (op)
387	if(&op->name == name)	424	if (op->name == str_)
388	break;	425	break;
389		426
390	return op;	427	return op;
391	}	428	}
392		429
		430	void
393	void free_all_object_data(void) {	431	free_all_object_data ()
394	#ifdef MEMORY_DEBUG
395	object *op, *next;
396
397	for (op=free_objects; op!=NULL; ) {
398	next=op->next;
399	free(op);
400	nrofallocobjects--;
401	nroffreeobjects--;
402	op=next;
403	}
404	#endif
405	LOG(llevDebug,"%d allocated objects, %d free objects, STARMAX=%d\n",
406	nrofallocobjects, nroffreeobjects,STARTMAX);
407	}
408
409	/*
410	* Returns the object which this object marks as being the owner.
411	* A id-scheme is used to avoid pointing to objects which have been
412	* freed and are now reused. If this is detected, the owner is
413	* set to NULL, and NULL is returned.
414	* Changed 2004-02-12 - if the player is setting at the play again
415	* prompt, he is removed, and we don't want to treat him as an owner of
416	* anything, so check removed flag. I don't expect that this should break
417	* anything - once an object is removed, it is basically dead anyways.
418	*/
419
420	object *get_owner(object *op) {
421	if(op->owner==NULL)
422	return NULL;
423
424	if (!QUERY_FLAG(op->owner,FLAG_FREED) && !QUERY_FLAG(op->owner, FLAG_REMOVED) &&
425	op->owner->count==op->ownercount)
426	return op->owner;
427
428	op->owner=NULL;
429	op->ownercount=0;
430	return NULL;
431	}
432
433	void clear_owner(object *op)
434	{	432	{
435	if (!op) return;	433	LOG (llevDebug, "%d allocated objects\n", nrofallocobjects);
436
437	if (op->owner && op->ownercount == op->owner->count)
438	op->owner->refcount--;
439
440	op->owner = NULL;
441	op->ownercount = 0;
442	}	434	}
443
444
445		435
446	/*	436	/*
447	* Sets the owner and sets the skill and exp pointers to owner's current	437	* Sets the owner and sets the skill and exp pointers to owner's current
448	* skill and experience objects.	438	* skill and experience objects.
449	*/	439	*/
450	void set_owner (object *op, object *owner)	440	void
		441	object::set_owner (object *owner)
451	{	442	{
452	if(owner==NULL||op==NULL)	443	if (!owner)
453	return;	444	return;
454		445
455	/* next line added to allow objects which own objects */	446	/* next line added to allow objects which own objects */
456	/* Add a check for ownercounts in here, as I got into an endless loop	447	/* Add a check for ownercounts in here, as I got into an endless loop
457	* with the fireball owning a poison cloud which then owned the	448	* with the fireball owning a poison cloud which then owned the
458	* fireball. I believe that was caused by one of the objects getting	449	* fireball. I believe that was caused by one of the objects getting
459	* freed and then another object replacing it. Since the ownercounts	450	* freed and then another object replacing it. Since the ownercounts
460	* didn't match, this check is valid and I believe that cause is valid.	451	* didn't match, this check is valid and I believe that cause is valid.
461	*/	452	*/
462	while (owner->owner && owner!=owner->owner &&	453	while (owner->owner)
463	owner->ownercount==owner->owner->count) owner=owner->owner;	454	owner = owner->owner;
464		455
465	/* IF the owner still has an owner, we did not resolve to a final owner.
466	* so lets not add to that.
467	*/
468	if (owner->owner) return;
469
470	op->owner=owner;	456	this->owner = owner;
471
472	op->ownercount=owner->count;
473	owner->refcount++;
474
475	}
476
477	/* Set the owner to clone's current owner and set the skill and experience
478	* objects to clone's objects (typically those objects that where the owner's
479	* current skill and experience objects at the time when clone's owner was
480	* set - not the owner's current skill and experience objects).
481	*
482	* Use this function if player created an object (e.g. fire bullet, swarm
483	* spell), and this object creates further objects whose kills should be
484	* accounted for the player's original skill, even if player has changed
485	* skills meanwhile.
486	*/
487	void copy_owner (object *op, object *clone)
488	{
489	object *owner = get_owner (clone);
490	if (owner == NULL) {
491	/* players don't have owners - they own themselves. Update
492	* as appropriate.
493	*/
494	if (clone->type == PLAYER) owner=clone;
495	else return;
496	}
497	set_owner(op, owner);
498
499	}
500
501	/*
502	* Resets vital variables in an object
503	*/
504
505	void reset_object(object *op) {
506
507	op->name = NULL;
508	op->name_pl = NULL;
509	op->title = NULL;
510	op->race = NULL;
511	op->slaying = NULL;
512	op->skill = NULL;
513	op->msg = NULL;
514	op->materialname = NULL;
515	op->lore = NULL;
516	clear_object(op);
517	}	457	}
518		458
519	/* Zero the key_values on op, decrementing the shared-string	459	/* Zero the key_values on op, decrementing the shared-string
520	* refcounts and freeing the links.	460	* refcounts and freeing the links.
521	*/	461	*/
		462	static void
522	static void free_key_values(object * op)	463	free_key_values (object *op)
523	{	464	{
524	for (key_value *i = op->key_values; i != 0; )	465	for (key_value *i = op->key_values; i; )
525	{	466	{
526	key_value *next = i->next;	467	key_value *next = i->next;
527	delete i;	468	delete i;
		469
528	i = next;	470	i = next;
529	}	471	}
530		472
531	op->key_values = 0;	473	op->key_values = 0;
532	}	474	}
533		475
534	/*	476	object &
535	* clear_object() frees everything allocated by an object, and also	477	object::operator =(const object &src)
536	* clears all variables and flags to default settings.
537	*/
538
539	void clear_object(object *op)
540	{	478	{
541	op->clear ();	479	bool is_freed = flag [FLAG_FREED];
		480	bool is_removed = flag [FLAG_REMOVED];
542		481
543	free_key_values (op);	482	*(object_copy *)this = src;
544		483
545	/* the memset will clear all these values for us, but we need	484	flag [FLAG_FREED] = is_freed;
546	* to reduce the refcount on them.	485	flag [FLAG_REMOVED] = is_removed;
547	*/
548	op->name = 0;
549	op->name_pl = 0;
550	op->title = 0;
551	op->race = 0;
552	op->slaying = 0;
553	op->skill = 0;
554	op->msg = 0;
555	op->lore = 0;
556	op->materialname = 0;
557
558	memset((void*)op, 0, sizeof (object_special));
559	/* Below here, we clear things that are not done by the memset,
560	* or set default values that are not zero.
561	*/
562	/* This is more or less true */
563	SET_FLAG (op, FLAG_REMOVED);
564
565	op->contr = NULL;
566	op->below = NULL;
567	op->above = NULL;
568	op->inv = NULL;
569	op->container=NULL;
570	op->env=NULL;
571	op->more=NULL;
572	op->head=NULL;
573	op->map=NULL;
574	op->refcount=0;
575	op->active_next = NULL;
576	op->active_prev = NULL;
577	/* What is not cleared is next, prev, and count */
578
579	op->expmul=1.0;
580	op->face = blank_face;
581	op->attacked_by_count = (tag_t) -1;
582
583	if (settings.casting_time)
584	op->casting_time = -1;
585	}
586
587	/*
588	* copy object first frees everything allocated by the second object,
589	* and then copies the contends of the first object into the second
590	* object, allocating what needs to be allocated. Basically, any
591	* data that is malloc'd needs to be re-malloc/copied. Otherwise,
592	* if the first object is freed, the pointers in the new object
593	* will point at garbage.
594	*/
595
596	void copy_object(object *op2, object *op)
597	{
598	int is_freed=QUERY_FLAG(op,FLAG_FREED),is_removed=QUERY_FLAG(op,FLAG_REMOVED);
599
600	op->clear ();
601
602	free_key_values (op);
603
604	*(object_special *)op = *(object_special *)op2;
605	op2->clone (op);
606
607	if (is_freed) SET_FLAG(op,FLAG_FREED);
608	if (is_removed) SET_FLAG(op,FLAG_REMOVED);
609
610	if (op2->speed < 0)
611	op->speed_left = op2->speed_left - RANDOM() % 200 / 100.0;
612		486
613	/* Copy over key_values, if any. */	487	/* Copy over key_values, if any. */
614	if (op2->key_values != NULL) {	488	if (src.key_values)
		489	{
615	key_value *tail = NULL;	490	key_value *tail = 0;
616	key_value *i;
617
618	op->key_values = NULL;	491	key_values = 0;
619		492
620	for (i = op2->key_values; i != NULL; i = i->next)	493	for (key_value *i = src.key_values; i; i = i->next)
621	{	494	{
622	key_value *new_link = new key_value;	495	key_value *new_link = new key_value;
623		496
624	new_link->next = NULL;	497	new_link->next = 0;
625	new_link->key = i->key;	498	new_link->key = i->key;
626	new_link->value = i->value;	499	new_link->value = i->value;
627		500
628	/* Try and be clever here, too. */	501	/* Try and be clever here, too. */
629	if (op->key_values == NULL)	502	if (!key_values)
630	{	503	{
631	op->key_values = new_link;	504	key_values = new_link;
632	tail = new_link;	505	tail = new_link;
633	}	506	}
634	else	507	else
635	{	508	{
636	tail->next = new_link;	509	tail->next = new_link;
637	tail = new_link;	510	tail = new_link;
638	}	511	}
639	}	512	}
640	}	513	}
641
642	update_ob_speed (op);
643	}	514	}
644		515
645	/*	516	/*
646	* expand_objects() allocates more objects for the list of unused objects.	517	* copy_to first frees everything allocated by the dst object,
647	* It is called from get_object() if the unused list is empty.	518	* and then copies the contents of itself into the second
		519	* object, allocating what needs to be allocated. Basically, any
		520	* data that is malloc'd needs to be re-malloc/copied. Otherwise,
		521	* if the first object is freed, the pointers in the new object
		522	* will point at garbage.
		523	*/
		524	void
		525	object::copy_to (object *dst)
		526	{
		527	*dst = *this;
		528
		529	if (speed < 0)
		530	dst->speed_left = speed_left - rndm ();
		531
		532	dst->set_speed (dst->speed);
		533	}
		534
		535	void
		536	object::instantiate ()
		537	{
		538	if (!uuid.seq) // HACK
		539	uuid = gen_uuid ();
		540
		541	speed_left = -0.1f;
		542	/* copy the body_info to the body_used - this is only really
		543	* need for monsters, but doesn't hurt to do it for everything.
		544	* by doing so, when a monster is created, it has good starting
		545	* values for the body_used info, so when items are created
		546	* for it, they can be properly equipped.
648	*/	547	*/
		548	memcpy (body_used, body_info, sizeof (body_used));
649		549
650	void expand_objects(void) {	550	attachable::instantiate ();
651	int i;
652	object *obj;
653	obj = new object [OBJ_EXPAND];
654
655	free_objects=obj;
656	obj[0].prev=NULL;
657	obj[0].next= &obj[1],
658	SET_FLAG(&(obj[0]), FLAG_REMOVED);
659	SET_FLAG(&(obj[0]), FLAG_FREED);
660
661	for(i=1;i<OBJ_EXPAND-1;i++) {
662	obj[i].next= &obj[i+1],
663	obj[i].prev= &obj[i-1],
664	SET_FLAG(&(obj[i]), FLAG_REMOVED);
665	SET_FLAG(&(obj[i]), FLAG_FREED);
666	}
667	obj[OBJ_EXPAND-1].prev= &obj[OBJ_EXPAND-2],
668	obj[OBJ_EXPAND-1].next=NULL,
669	SET_FLAG(&(obj[OBJ_EXPAND-1]), FLAG_REMOVED);
670	SET_FLAG(&(obj[OBJ_EXPAND-1]), FLAG_FREED);
671
672	nrofallocobjects += OBJ_EXPAND;
673	nroffreeobjects += OBJ_EXPAND;
674	}	551	}
675		552
676	/*
677	* get_object() grabs an object from the list of unused objects, makes
678	* sure it is initialised, and returns it.
679	* If there are no free objects, expand_objects() is called to get more.
680	*/
681
682	object *get_object(void)
683	{
684	object *op;	553	object *
685		554	object::clone ()
686	if(free_objects==NULL)	555	{
687	expand_objects();	556	object *neu = create ();
688		557	copy_to (neu);
689	op = free_objects;
690
691	if (!QUERY_FLAG (op, FLAG_FREED))
692	LOG(llevError,"Fatal: Getting busy object.\n");
693
694	free_objects = op->next;
695
696	if (free_objects != NULL)
697	free_objects->prev = NULL;
698
699	op->count= ++ob_count;
700	op->name=NULL;
701	op->name_pl=NULL;
702	op->title=NULL;
703	op->race=NULL;
704	op->slaying=NULL;
705	op->skill = NULL;
706	op->lore=NULL;
707	op->msg=NULL;
708	op->materialname=NULL;
709	op->next=objects;
710	op->prev=NULL;
711	op->active_next = NULL;
712	op->active_prev = NULL;
713	if(objects!=NULL)
714	objects->prev=op;
715	objects=op;
716	clear_object(op);
717	SET_FLAG(op,FLAG_REMOVED);
718	nroffreeobjects--;
719	return op;	558	return neu;
720	}	559	}
721		560
722	/*	561	/*
723	* If an object with the IS_TURNABLE() flag needs to be turned due	562	* If an object with the IS_TURNABLE() flag needs to be turned due
724	* to the closest player being on the other side, this function can	563	* to the closest player being on the other side, this function can
725	* be called to update the face variable, _and_ how it looks on the map.	564	* be called to update the face variable, _and_ how it looks on the map.
726	*/	565	*/
727		566	void
728	void update_turn_face(object *op) {	567	update_turn_face (object *op)
		568	{
729	if(!QUERY_FLAG(op,FLAG_IS_TURNABLE)||op->arch==NULL)	569	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || !op->arch)
730	return;	570	return;
		571
731	SET_ANIMATION(op, op->direction);	572	SET_ANIMATION (op, op->direction);
732	update_object(op,UP_OBJ_FACE);	573	update_object (op, UP_OBJ_FACE);
733	}	574	}
734		575
735	/*	576	/*
736	* Updates the speed of an object. If the speed changes from 0 to another	577	* Updates the speed of an object. If the speed changes from 0 to another
737	* value, or vice versa, then add/remove the object from the active list.	578	* value, or vice versa, then add/remove the object from the active list.
738	* This function needs to be called whenever the speed of an object changes.	579	* This function needs to be called whenever the speed of an object changes.
739	*/	580	*/
740		581	void
741	void update_ob_speed(object *op) {	582	object::set_speed (float speed)
742	extern int arch_init;	583	{
743		584	if (flag [FLAG_FREED] && speed)
744	/* No reason putting the archetypes objects on the speed list,	585	{
745	* since they never really need to be updated.
746	*/
747
748	if (QUERY_FLAG(op, FLAG_FREED) && op->speed) {
749	LOG(llevError,"Object %s is freed but has speed.\n", &op->name);	586	LOG (llevError, "Object %s is freed but has speed.\n", &name);
750	#ifdef MANY_CORES
751	abort();
752	#else
753	op->speed = 0;	587	speed = 0;
754	#endif
755	}	588	}
756	if (arch_init) {
757	return;
758	}
759	if (FABS(op->speed)>MIN_ACTIVE_SPEED) {
760	/* If already on active list, don't do anything */
761	if (op->active_next || op->active_prev || op==active_objects)
762	return;
763		589
764	/* process_events() expects us to insert the object at the beginning	590	this->speed = speed;
765	* of the list. */	591
766	op->active_next = active_objects;	592	if (has_active_speed ())
767	if (op->active_next!=NULL)	593	activate ();
768	op->active_next->active_prev = op;
769	active_objects = op;
770	}
771	else {	594	else
772	/* If not on the active list, nothing needs to be done */	595	deactivate ();
773	if (!op->active_next && !op->active_prev && op!=active_objects)
774	return;
775
776	if (op->active_prev==NULL) {
777	active_objects = op->active_next;
778	if (op->active_next!=NULL)
779	op->active_next->active_prev = NULL;
780	}
781	else {
782	op->active_prev->active_next = op->active_next;
783	if (op->active_next)
784	op->active_next->active_prev = op->active_prev;
785	}
786	op->active_next = NULL;
787	op->active_prev = NULL;
788	}
789	}	596	}
790		597
791	/* This function removes object 'op' from the list of active
792	* objects.
793	* This should only be used for style maps or other such
794	* reference maps where you don't want an object that isn't
795	* in play chewing up cpu time getting processed.
796	* The reverse of this is to call update_ob_speed, which
797	* will do the right thing based on the speed of the object.
798	*/
799	void remove_from_active_list(object *op)
800	{
801	/* If not on the active list, nothing needs to be done */
802	if (!op->active_next && !op->active_prev && op!=active_objects)
803	return;
804
805	if (op->active_prev==NULL) {
806	active_objects = op->active_next;
807	if (op->active_next!=NULL)
808	op->active_next->active_prev = NULL;
809	}
810	else {
811	op->active_prev->active_next = op->active_next;
812	if (op->active_next)
813	op->active_next->active_prev = op->active_prev;
814	}
815	op->active_next = NULL;
816	op->active_prev = NULL;
817	}
818
819	/*	598	/*
820	* update_object() updates the array which represents the map.	599	* update_object() updates the the map.
821	* It takes into account invisible objects (and represent squares covered	600	* It takes into account invisible objects (and represent squares covered
822	* by invisible objects by whatever is below them (unless it's another	601	* by invisible objects by whatever is below them (unless it's another
823	* invisible object, etc...)	602	* invisible object, etc...)
824	* If the object being updated is beneath a player, the look-window	603	* If the object being updated is beneath a player, the look-window
825	* of that player is updated (this might be a suboptimal way of	604	* of that player is updated (this might be a suboptimal way of
826	* updating that window, though, since update_object() is called _often_)	605	* updating that window, though, since update_object() is called _often_)
827	*	606	*
828	* action is a hint of what the caller believes need to be done.	607	* action is a hint of what the caller believes need to be done.
829	* For example, if the only thing that has changed is the face (due to
830	* an animation), we don't need to call update_position until that actually
831	* comes into view of a player. OTOH, many other things, like addition/removal
832	* of walls or living creatures may need us to update the flags now.
833	* current action are:	608	* current action are:
834	* UP_OBJ_INSERT: op was inserted	609	* UP_OBJ_INSERT: op was inserted
835	* UP_OBJ_REMOVE: op was removed	610	* UP_OBJ_REMOVE: op was removed
836	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update	611	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update
837	* as that is easier than trying to look at what may have changed.	612	* as that is easier than trying to look at what may have changed.
838	* UP_OBJ_FACE: only the objects face has changed.	613	* UP_OBJ_FACE: only the objects face has changed.
839	*/	614	*/
840		615	void
841	void update_object(object *op, int action) {	616	update_object (object *op, int action)
842	int update_now=0, flags;	617	{
843	MoveType move_on, move_off, move_block, move_slow;
844
845	if (op == NULL) {	618	if (op == NULL)
		619	{
846	/* this should never happen */	620	/* this should never happen */
847	LOG(llevDebug,"update_object() called for NULL object.\n");	621	LOG (llevDebug, "update_object() called for NULL object.\n");
848	return;	622	return;
849	}
850		623	}
851	if(op->env!=NULL) {	624
		625	if (op->env)
		626	{
852	/* Animation is currently handled by client, so nothing	627	/* Animation is currently handled by client, so nothing
853	* to do in this case.	628	* to do in this case.
854	*/	629	*/
855	return;	630	return;
856	}	631	}
857		632
858	/* If the map is saving, don't do anything as everything is	633	/* If the map is saving, don't do anything as everything is
859	* going to get freed anyways.	634	* going to get freed anyways.
860	*/	635	*/
861	if (!op->map || op->map->in_memory == MAP_SAVING) return;	636	if (!op->map || op->map->in_memory == MAP_SAVING)
862		637	return;
		638
863	/* make sure the object is within map boundaries */	639	/* make sure the object is within map boundaries */
864	if (op->x < 0 || op->x >= MAP_WIDTH(op->map) ||	640	if (op->x < 0 || op->x >= op->map->width || op->y < 0 || op->y >= op->map->height)
865	op->y < 0 || op->y >= MAP_HEIGHT(op->map)) {	641	{
866	LOG(llevError,"update_object() called for object out of map!\n");	642	LOG (llevError, "update_object() called for object out of map!\n");
867	#ifdef MANY_CORES	643	#ifdef MANY_CORES
868	abort();	644	abort ();
869	#endif	645	#endif
870	return;	646	return;
871	}
872		647	}
873	flags = GET_MAP_FLAGS(op->map, op->x, op->y);
874	SET_MAP_FLAGS(op->map, op->x, op->y, flags | P_NEED_UPDATE);
875	move_slow = GET_MAP_MOVE_SLOW(op->map, op->x, op->y);
876	move_on = GET_MAP_MOVE_ON(op->map, op->x, op->y);
877	move_block = GET_MAP_MOVE_BLOCK(op->map, op->x, op->y);
878	move_off = GET_MAP_MOVE_OFF(op->map, op->x, op->y);
879		648
		649	mapspace &m = op->ms ();
		650
		651	if (!(m.flags_ & P_UPTODATE))
		652	/* nop */;
880	if (action == UP_OBJ_INSERT) {	653	else if (action == UP_OBJ_INSERT)
		654	{
		655	// this is likely overkill, TODO: revisit (schmorp)
881	if (QUERY_FLAG(op, FLAG_BLOCKSVIEW) && !(flags & P_BLOCKSVIEW))	656	if ((QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(m.flags_ & P_BLOCKSVIEW))
882	update_now=1;
883
884	if (QUERY_FLAG(op, FLAG_NO_MAGIC) && !(flags & P_NO_MAGIC))	657	|| (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(m.flags_ & P_NO_MAGIC))
885	update_now=1;	658	|| (op->type == PLAYER && !(m.flags_ & P_PLAYER))
886		659	|| (op->type == SAFE_GROUND && !(m.flags_ & P_SAFE))
		660	|| (QUERY_FLAG (op, FLAG_ALIVE) && !(m.flags_ & P_IS_ALIVE))
887	if (QUERY_FLAG(op, FLAG_DAMNED) && !(flags & P_NO_CLERIC))	661	|| (QUERY_FLAG (op, FLAG_DAMNED) && !(m.flags_ & P_NO_CLERIC))
888	update_now=1;	662	|| (m.move_on | op->move_on ) != m.move_on
889
890	if (QUERY_FLAG(op, FLAG_ALIVE) && !(flags & P_IS_ALIVE))
891	update_now=1;
892
893	if ((move_on | op->move_on) != move_on) update_now=1;
894	if ((move_off | op->move_off) != move_off) update_now=1;	663	|| (m.move_off | op->move_off ) != m.move_off
		664	|| (m.move_slow | op->move_slow) != m.move_slow
895	/* This isn't perfect, but I don't expect a lot of objects to	665	/* This isn't perfect, but I don't expect a lot of objects to
896	* to have move_allow right now.	666	* to have move_allow right now.
897	*/	667	*/
898	if (((move_block | op->move_block) & ~op->move_allow) != move_block)	668	|| ((m.move_block | op->move_block) & ~op->move_allow) != m.move_block
899	update_now=1;	669	|| 1) // the above is not strong enough a test to skip updating. los maybe? TODO (Schmorp)
900	if ((move_slow | op->move_slow) != move_slow) update_now=1;	670	m.flags_ = 0;
901	}	671	}
902	/* if the object is being removed, we can't make intelligent	672	/* if the object is being removed, we can't make intelligent
903	* decisions, because remove_ob can't really pass the object	673	* decisions, because remove_ob can't really pass the object
904	* that is being removed.	674	* that is being removed.
905	*/	675	*/
906	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE) {	676	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)
907	update_now=1;	677	m.flags_ = 0;
908	} else if (action == UP_OBJ_FACE) {	678	else if (action == UP_OBJ_FACE)
909	/* Nothing to do for that case */	679	/* Nothing to do for that case */ ;
910	}
911	else {	680	else
912	LOG(llevError,"update_object called with invalid action: %d\n", action);	681	LOG (llevError, "update_object called with invalid action: %d\n", action);
913	}
914		682
915	if (update_now) {
916	SET_MAP_FLAGS(op->map, op->x, op->y, flags | P_NO_ERROR | P_NEED_UPDATE);
917	update_position(op->map, op->x, op->y);
918	}
919
920	if(op->more!=NULL)	683	if (op->more)
921	update_object(op->more, action);	684	update_object (op->more, action);
922	}	685	}
923		686
		687	object::object ()
		688	{
		689	SET_FLAG (this, FLAG_REMOVED);
924		690
925	/*	691	expmul = 1.0;
926	* free_object() frees everything allocated by an object, removes	692	face = blank_face;
927	* it from the list of used objects, and puts it on the list of
928	* free objects. The IS_FREED() flag is set in the object.
929	* The object must have been removed by remove_ob() first for
930	* this function to succeed.
931	*
932	* If free_inventory is set, free inventory as well. Else drop items in
933	* inventory to the ground.
934	*/
935
936	void free_object(object *ob) {
937	free_object2(ob, 0);
938	}	693	}
939	void free_object2(object *ob, int free_inventory) {
940	object *tmp,*op;
941		694
942	ob->clear ();	695	object::~object ()
		696	{
		697	unlink ();
943		698
944	if (!QUERY_FLAG(ob,FLAG_REMOVED)) {	699	free_key_values (this);
945	LOG(llevDebug,"Free object called with non removed object\n");	700	}
946	dump_object(ob);	701
947	#ifdef MANY_CORES	702	static int object_count;
948	abort();	703
949	#endif	704	void object::link ()
950	}	705	{
951	if(QUERY_FLAG(ob,FLAG_FRIENDLY)) {	706	assert (!index);//D
952	LOG(llevMonster,"Warning: tried to free friendly object.\n");	707	uuid = gen_uuid ();
953	remove_friendly_object(ob);	708	count = ++object_count;
954	}	709
955	if(QUERY_FLAG(ob,FLAG_FREED)) {	710	refcnt_inc ();
956	dump_object(ob);	711	objects.insert (this);
957	LOG(llevError,"Trying to free freed object.\n%s\n",errmsg);	712	}
		713
		714	void object::unlink ()
		715	{
		716	if (!index)
958	return;	717	return;
		718
		719	objects.erase (this);
		720	refcnt_dec ();
		721	}
		722
		723	void
		724	object::activate ()
		725	{
		726	/* If already on active list, don't do anything */
		727	if (active)
		728	return;
		729
		730	if (has_active_speed ())
		731	actives.insert (this);
		732	}
		733
		734	void
		735	object::activate_recursive ()
		736	{
		737	activate ();
		738
		739	for (object *op = inv; op; op = op->below)
		740	op->activate_recursive ();
		741	}
		742
		743	/* This function removes object 'op' from the list of active
		744	* objects.
		745	* This should only be used for style maps or other such
		746	* reference maps where you don't want an object that isn't
		747	* in play chewing up cpu time getting processed.
		748	* The reverse of this is to call update_ob_speed, which
		749	* will do the right thing based on the speed of the object.
		750	*/
		751	void
		752	object::deactivate ()
		753	{
		754	/* If not on the active list, nothing needs to be done */
		755	if (!active)
		756	return;
		757
		758	actives.erase (this);
		759	}
		760
		761	void
		762	object::deactivate_recursive ()
		763	{
		764	for (object *op = inv; op; op = op->below)
		765	op->deactivate_recursive ();
		766
		767	deactivate ();
		768	}
		769
		770	void
		771	object::set_flag_inv (int flag, int value)
		772	{
		773	for (object *op = inv; op; op = op->below)
959	}	774	{
960	if(ob->more!=NULL) {	775	op->flag [flag] = value;
961	free_object2(ob->more, free_inventory);	776	op->set_flag_inv (flag, value);
962	ob->more=NULL;
963	}	777	}
964	if (ob->inv) {	778	}
		779
		780	/*
		781	* Remove and free all objects in the inventory of the given object.
		782	* object.c ?
		783	*/
		784	void
		785	object::destroy_inv (bool drop_to_ground)
		786	{
		787	// need to check first, because the checks below might segfault
		788	// as we might be on an invalid mapspace and crossfire code
		789	// is too buggy to ensure that the inventory is empty.
		790	// corollary: if you create arrows etc. with stuff in tis inventory,
		791	// cf will crash below with off-map x and y
		792	if (!inv)
		793	return;
		794
965	/* Only if the space blocks everything do we not process -	795	/* Only if the space blocks everything do we not process -
966	* if some form of movemnt is allowed, let objects	796	* if some form of movement is allowed, let objects
967	* drop on that space.	797	* drop on that space.
968	*/	798	*/
969	if (free_inventory || ob->map==NULL || ob->map->in_memory!=MAP_IN_MEMORY ||	799	if (!drop_to_ground
970	(GET_MAP_MOVE_BLOCK(ob->map, ob->x, ob->y) == MOVE_ALL))	800	|| !map
971	{	801	|| map->in_memory != MAP_IN_MEMORY
972	op=ob->inv;	802	|| map->nodrop
973	while(op!=NULL) {	803	|| ms ().move_block == MOVE_ALL)
974	tmp=op->below;	804	{
975	remove_ob(op);	805	while (inv)
976	free_object2(op, free_inventory);
977	op=tmp;
978	}
979	}	806	{
980	else { /* Put objects in inventory onto this space */	807	inv->destroy_inv (drop_to_ground);
981	op=ob->inv;	808	inv->destroy ();
982	while(op!=NULL) {
983	tmp=op->below;
984	remove_ob(op);
985	if(QUERY_FLAG(op,FLAG_STARTEQUIP)||QUERY_FLAG(op,FLAG_NO_DROP) ||
986	op->type==RUNE || op->type==TRAP || QUERY_FLAG(op,FLAG_IS_A_TEMPLATE))
987	free_object(op);
988	else {
989	op->x=ob->x;
990	op->y=ob->y;
991	insert_ob_in_map(op,ob->map,NULL,0); /* Insert in same map as the envir */
992	}
993	op=tmp;
994	}	809	}
		810	}
		811	else
		812	{ /* Put objects in inventory onto this space */
		813	while (inv)
995	}	814	{
996	}	815	object *op = inv;
997	/* Remove object from the active list */
998	ob->speed = 0;
999	update_ob_speed(ob);
1000		816
1001	SET_FLAG(ob, FLAG_FREED);	817	if (op->flag [FLAG_STARTEQUIP]
1002	ob->count = 0;	818	|| op->flag [FLAG_NO_DROP]
1003		819	|| op->type == RUNE
1004	/* Remove this object from the list of used objects */	820	|| op->type == TRAP
1005	if(ob->prev==NULL) {	821	|| op->flag [FLAG_IS_A_TEMPLATE]
1006	objects=ob->next;	822	|| op->flag [FLAG_DESTROY_ON_DEATH])
1007	if(objects!=NULL)	823	op->destroy ();
1008	objects->prev=NULL;	824	else
		825	map->insert (op, x, y);
		826	}
1009	}	827	}
1010	else {
1011	ob->prev->next=ob->next;
1012	if(ob->next!=NULL)
1013	ob->next->prev=ob->prev;
1014	}
1015
1016	ob->name = 0;
1017	ob->name_pl = 0;
1018	ob->title = 0;
1019	ob->race = 0;
1020	ob->slaying = 0;
1021	ob->skill = 0;
1022	ob->lore = 0;
1023	ob->msg = 0;
1024	ob->materialname = 0;
1025
1026	free_key_values (ob);
1027
1028	/* Now link it with the free_objects list: */
1029	ob->prev=NULL;
1030	ob->next=free_objects;
1031
1032	if(free_objects!=NULL)
1033	free_objects->prev=ob;
1034
1035	free_objects=ob;
1036	nroffreeobjects++;
1037	}	828	}
1038		829
1039	/*	830	object *object::create ()
1040	* count_free() returns the number of objects on the list of free objects.
1041	*/
1042
1043	int count_free ()
1044	{	831	{
1045	int i=0;
1046	object *tmp=free_objects;	832	object *op = new object;
1047	while(tmp!=NULL)	833	op->link ();
1048	tmp=tmp->next, i++;
1049	return i;	834	return op;
1050	}	835	}
1051		836
1052	/*	837	void
1053	* count_used() returns the number of objects on the list of used objects.	838	object::do_destroy ()
1054	*/
1055
1056	int count_used()
1057	{	839	{
1058	int i=0;	840	attachable::do_destroy ();
1059	object *tmp=objects;	841
1060	while(tmp!=NULL)	842	if (flag [FLAG_IS_LINKED])
1061	tmp=tmp->next, i++;	843	remove_button_link (this);
		844
		845	if (flag [FLAG_FRIENDLY])
		846	remove_friendly_object (this);
		847
		848	if (!flag [FLAG_REMOVED])
		849	remove ();
		850
		851	destroy_inv (true);
		852
		853	deactivate ();
		854	unlink ();
		855
		856	flag [FLAG_FREED] = 1;
		857
		858	// hack to ensure that freed objects still have a valid map
		859	{
		860	static maptile *freed_map; // freed objects are moved here to avoid crashes
		861
		862	if (!freed_map)
		863	{
		864	freed_map = new maptile;
		865
		866	freed_map->name = "/internal/freed_objects_map";
		867	freed_map->width = 3;
		868	freed_map->height = 3;
		869
		870	freed_map->alloc ();
		871	freed_map->in_memory = MAP_IN_MEMORY;
		872	}
		873
		874	map = freed_map;
		875	x = 1;
		876	y = 1;
		877	}
		878
		879	head = 0;
		880
		881	if (more)
		882	{
		883	more->destroy ();
		884	more = 0;
		885	}
		886
		887	// clear those pointers that likely might have circular references to us
		888	owner = 0;
		889	enemy = 0;
		890	attacked_by = 0;
		891	}
		892
		893	void
		894	object::destroy (bool destroy_inventory)
		895	{
		896	if (destroyed ())
1062	return i;	897	return;
1063	}
1064		898
1065	/*	899	if (destroy_inventory)
1066	* count_active() returns the number of objects on the list of active objects.	900	destroy_inv (false);
1067	*/
1068		901
1069	int count_active()	902	attachable::destroy ();
1070	{
1071	int i=0;
1072	object *tmp=active_objects;
1073	while(tmp!=NULL)
1074	tmp=tmp->active_next, i++;
1075	return i;
1076	}	903	}
1077		904
1078	/*	905	/*
1079	* sub_weight() recursively (outwards) subtracts a number from the	906	* sub_weight() recursively (outwards) subtracts a number from the
1080	* weight of an object (and what is carried by it's environment(s)).	907	* weight of an object (and what is carried by it's environment(s)).
1081	*/	908	*/
1082		909	void
1083	void sub_weight (object *op, signed long weight) {	910	sub_weight (object *op, signed long weight)
		911	{
1084	while (op != NULL) {	912	while (op != NULL)
		913	{
1085	if (op->type == CONTAINER) {	914	if (op->type == CONTAINER)
1086	weight=(signed long)(weight*(100-op->stats.Str)/100);	915	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1087	}	916
1088	op->carrying-=weight;	917	op->carrying -= weight;
1089	op = op->env;	918	op = op->env;
1090	}	919	}
1091	}	920	}
1092		921
1093	/* remove_ob(op):	922	/* op->remove ():
1094	* This function removes the object op from the linked list of objects	923	* This function removes the object op from the linked list of objects
1095	* which it is currently tied to. When this function is done, the	924	* which it is currently tied to. When this function is done, the
1096	* object will have no environment. If the object previously had an	925	* object will have no environment. If the object previously had an
1097	* environment, the x and y coordinates will be updated to	926	* environment, the x and y coordinates will be updated to
1098	* the previous environment.	927	* the previous environment.
1099	* Beware: This function is called from the editor as well!
1100	*/	928	*/
1101		929	void
1102	void remove_ob(object *op) {	930	object::do_remove ()
		931	{
1103	object *tmp,*last=NULL;	932	object *tmp, *last = 0;
1104	object *otmp;	933	object *otmp;
1105	tag_t tag;
1106	int check_walk_off;
1107	mapstruct *m;
1108	sint16 x,y;
1109
1110		934
1111	if(QUERY_FLAG(op,FLAG_REMOVED)) {	935	if (QUERY_FLAG (this, FLAG_REMOVED))
1112	dump_object(op);	936	return;
1113	LOG(llevError,"Trying to remove removed object.\n%s\n",errmsg);
1114		937
1115	/* Changed it to always dump core in this case. As has been learned
1116	* in the past, trying to recover from errors almost always
1117	* make things worse, and this is a real error here - something
1118	* that should not happen.
1119	* Yes, if this was a mission critical app, trying to do something
1120	* to recover may make sense, but that is because failure of the app
1121	* may have other disastrous problems. Cf runs out of a script
1122	* so is easily enough restarted without any real problems.
1123	* MSW 2001-07-01
1124	*/
1125	abort();
1126	}
1127	if(op->more!=NULL)
1128	remove_ob(op->more);
1129
1130	SET_FLAG(op, FLAG_REMOVED);	938	SET_FLAG (this, FLAG_REMOVED);
		939	INVOKE_OBJECT (REMOVE, this);
1131		940
		941	if (more)
		942	more->remove ();
		943
1132	/*	944	/*
1133	* In this case, the object to be removed is in someones	945	* In this case, the object to be removed is in someones
1134	* inventory.	946	* inventory.
1135	*/	947	*/
1136	if(op->env!=NULL) {	948	if (env)
		949	{
1137	if(op->nrof)	950	if (nrof)
1138	sub_weight(op->env, op->weight*op->nrof);	951	sub_weight (env, weight * nrof);
1139	else	952	else
1140	sub_weight(op->env, op->weight+op->carrying);	953	sub_weight (env, weight + carrying);
1141		954
1142	/* NO_FIX_PLAYER is set when a great many changes are being	955	/* NO_FIX_PLAYER is set when a great many changes are being
1143	* made to players inventory. If set, avoiding the call	956	* made to players inventory. If set, avoiding the call
1144	* to save cpu time.	957	* to save cpu time.
1145	*/	958	*/
1146	if ((otmp=is_player_inv(op->env))!=NULL && otmp->contr &&	959	if ((otmp = in_player ()) && otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1147	!QUERY_FLAG(otmp,FLAG_NO_FIX_PLAYER))	960	otmp->update_stats ();
1148	fix_player(otmp);
1149		961
1150	if(op->above!=NULL)	962	if (above)
1151	op->above->below=op->below;	963	above->below = below;
1152	else	964	else
1153	op->env->inv=op->below;	965	env->inv = below;
1154		966
1155	if(op->below!=NULL)	967	if (below)
1156	op->below->above=op->above;	968	below->above = above;
1157		969
1158	/* we set up values so that it could be inserted into	970	/* we set up values so that it could be inserted into
1159	* the map, but we don't actually do that - it is up	971	* the map, but we don't actually do that - it is up
1160	* to the caller to decide what we want to do.	972	* to the caller to decide what we want to do.
		973	*/
		974	x = env->x, y = env->y;
		975	map = env->map;
		976	above = 0, below = 0;
		977	env = 0;
		978	}
		979	else if (map)
		980	{
		981	if (type == PLAYER)
		982	{
		983	// leaving a spot always closes any open container on the ground
		984	if (container && !container->env)
		985	// this causes spurious floorbox updates, but it ensures
		986	// that the CLOSE event is being sent.
		987	close_container ();
		988
		989	--map->players;
		990	map->touch ();
		991	}
		992
		993	map->dirty = true;
		994	mapspace &ms = this->ms ();
		995
		996	/* link the object above us */
		997	if (above)
		998	above->below = below;
		999	else
		1000	ms.top = below; /* we were top, set new top */
		1001
		1002	/* Relink the object below us, if there is one */
		1003	if (below)
		1004	below->above = above;
		1005	else
		1006	{
		1007	/* Nothing below, which means we need to relink map object for this space
		1008	* use translated coordinates in case some oddness with map tiling is
		1009	* evident
1161	*/	1010	*/
1162	op->x=op->env->x,op->y=op->env->y;	1011	if (GET_MAP_OB (map, x, y) != this)
1163	op->map=op->env->map;	1012	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 ());
1164	op->above=NULL,op->below=NULL;	1013
1165	op->env=NULL;	1014	ms.bot = above; /* goes on above it. */
		1015	}
		1016
		1017	above = 0;
		1018	below = 0;
		1019
		1020	if (map->in_memory == MAP_SAVING)
1166	return;	1021	return;
1167	}
1168		1022
1169	/* If we get here, we are removing it from a map */	1023	int check_walk_off = !flag [FLAG_NO_APPLY];
1170	if (op->map == NULL) return;
1171		1024
1172	x = op->x;	1025	for (tmp = ms.bot; tmp; tmp = tmp->above)
1173	y = op->y;
1174	m = get_map_from_coord(op->map, &x, &y);
1175
1176	if (!m) {
1177	LOG(llevError,"remove_ob called when object was on map but appears to not be within valid coordinates? %s (%d,%d)\n",
1178	op->map->path, op->x, op->y);
1179	/* in old days, we used to set x and y to 0 and continue.
1180	* it seems if we get into this case, something is probablye
1181	* screwed up and should be fixed.
1182	*/
1183	abort();
1184	}
1185	if (op->map != m) {
1186	LOG(llevDebug,"remove_ob: Object not really on map it claimed to be on? %s != %s, %d,%d != %d,%d\n",
1187	op->map->path, m->path, op->x, op->y, x, y);
1188	}
1189
1190	/* Re did the following section of code - it looks like it had
1191	* lots of logic for things we no longer care about
1192	*/
1193
1194	/* link the object above us */
1195	if (op->above)
1196	op->above->below=op->below;
1197	else
1198	SET_MAP_TOP(m,x,y,op->below); /* we were top, set new top */
1199
1200	/* Relink the object below us, if there is one */
1201	if(op->below) {
1202	op->below->above=op->above;
1203	} else {
1204	/* Nothing below, which means we need to relink map object for this space
1205	* use translated coordinates in case some oddness with map tiling is
1206	* evident
1207	*/
1208	if(GET_MAP_OB(m,x,y)!=op) {
1209	dump_object(op);
1210	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);
1211	dump_object(GET_MAP_OB(m,x,y));
1212	LOG(llevError,"%s\n",errmsg);
1213	}	1026	{
1214	SET_MAP_OB(m,x,y,op->above); /* goes on above it. */
1215	}
1216	op->above=NULL;
1217	op->below=NULL;
1218
1219	if (op->map->in_memory == MAP_SAVING)
1220	return;
1221
1222	tag = op->count;
1223	check_walk_off = ! QUERY_FLAG (op, FLAG_NO_APPLY);
1224	for(tmp=GET_MAP_OB(m,x,y);tmp!=NULL;tmp=tmp->above) {
1225	/* No point updating the players look faces if he is the object	1027	/* No point updating the players look faces if he is the object
1226	* being removed.	1028	* being removed.
1227	*/	1029	*/
1228		1030
1229	if(tmp->type==PLAYER && tmp!=op) {	1031	if (tmp->type == PLAYER && tmp != this)
		1032	{
1230	/* If a container that the player is currently using somehow gets	1033	/* If a container that the player is currently using somehow gets
1231	* removed (most likely destroyed), update the player view	1034	* removed (most likely destroyed), update the player view
1232	* appropriately.	1035	* appropriately.
1233	*/	1036	*/
1234	if (tmp->container==op) {	1037	if (tmp->container == this)
1235	CLEAR_FLAG(op, FLAG_APPLIED);	1038	{
		1039	flag [FLAG_APPLIED] = 0;
1236	tmp->container=NULL;	1040	tmp->container = 0;
		1041	}
		1042
		1043	if (tmp->contr->ns)
		1044	tmp->contr->ns->floorbox_update ();
1237	}	1045	}
1238	tmp->contr->socket.update_look=1;	1046
1239	}
1240	/* See if player moving off should effect something */	1047	/* See if object moving off should effect something */
1241	if (check_walk_off && ((op->move_type & tmp->move_off) &&	1048	if (check_walk_off
		1049	&& ((move_type & tmp->move_off)
1242	(op->move_type & ~tmp->move_off & ~tmp->move_block)==0)) {	1050	&& (move_type & ~tmp->move_off & ~tmp->move_block) == 0))
1243		1051	{
1244	move_apply(tmp, op, NULL);	1052	move_apply (tmp, this, 0);
		1053
1245	if (was_destroyed (op, tag)) {	1054	if (destroyed ())
1246	LOG (llevError, "BUG: remove_ob(): name %s, archname %s destroyed "	1055	LOG (llevError, "BUG: remove_ob(): name %s, destroyed leaving object\n", tmp->debug_desc ());
1247	"leaving object\n", &tmp->name, &tmp->arch->name);
1248	}	1056	}
1249	}
1250		1057
1251	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */	1058	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */
1252		1059	//TODO: why is this horrible hacka fix? get rid of this code=bug! (schmorp)
1253	if(tmp->above == tmp)	1060	if (tmp->above == tmp)
1254	tmp->above = NULL;	1061	tmp->above = 0;
		1062
1255	last=tmp;	1063	last = tmp;
1256	}	1064	}
		1065
1257	/* last == NULL of there are no objects on this space */	1066	/* last == NULL if there are no objects on this space */
1258	if (last==NULL) {	1067	//TODO: this makes little sense, why only update the topmost object?
1259	/* set P_NEED_UPDATE, otherwise update_position will complain. In theory,	1068	if (!last)
1260	* we could preserve the flags (GET_MAP_FLAGS), but update_position figures	1069	map->at (x, y).flags_ = 0;
1261	* those out anyways, and if there are any flags set right now, they won't
1262	* be correct anyways.
1263	*/
1264	SET_MAP_FLAGS(op->map, op->x, op->y, P_NEED_UPDATE);
1265	update_position(op->map, op->x, op->y);
1266	}
1267	else	1070	else
1268	update_object(last, UP_OBJ_REMOVE);	1071	update_object (last, UP_OBJ_REMOVE);
1269		1072
1270	if(QUERY_FLAG(op,FLAG_BLOCKSVIEW)|| (op->glow_radius != 0))	1073	if (flag [FLAG_BLOCKSVIEW] || glow_radius)
1271	update_all_los(op->map, op->x, op->y);	1074	update_all_los (map, x, y);
1272		1075	}
1273	}	1076	}
1274		1077
1275	/*	1078	/*
1276	* merge_ob(op,top):	1079	* merge_ob(op,top):
1277	*	1080	*
1278	* This function goes through all objects below and including top, and	1081	* This function goes through all objects below and including top, and
1279	* merges op to the first matching object.	1082	* merges op to the first matching object.
1280	* If top is NULL, it is calculated.	1083	* If top is NULL, it is calculated.
1281	* Returns pointer to object if it succeded in the merge, otherwise NULL	1084	* Returns pointer to object if it succeded in the merge, otherwise NULL
1282	*/	1085	*/
1283		1086	object *
1284	object *merge_ob(object *op, object *top) {	1087	merge_ob (object *op, object *top)
		1088	{
1285	if(!op->nrof)	1089	if (!op->nrof)
1286	return 0;	1090	return 0;
1287	if(top==NULL)	1091
		1092	if (top)
1288	for(top=op;top!=NULL&&top->above!=NULL;top=top->above);	1093	for (top = op; top && top->above; top = top->above)
		1094	;
		1095
1289	for(;top!=NULL;top=top->below) {	1096	for (; top; top = top->below)
		1097	{
1290	if(top==op)	1098	if (top == op)
1291	continue;	1099	continue;
1292	if (CAN_MERGE(op,top))	1100
1293	{	1101	if (object::can_merge (op, top))
		1102	{
1294	top->nrof+=op->nrof;	1103	top->nrof += op->nrof;
		1104
1295	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/	1105	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/
1296	op->weight = 0; /* Don't want any adjustements now */	1106	op->weight = 0; /* Don't want any adjustements now */
1297	remove_ob(op);	1107	op->destroy ();
1298	free_object(op);
1299	return top;	1108	return top;
1300	}	1109	}
1301	}	1110	}
		1111
1302	return NULL;	1112	return 0;
1303	}	1113	}
1304		1114
		1115	void
		1116	object::expand_tail ()
		1117	{
		1118	if (more)
		1119	return;
		1120
		1121	object *prev = this;
		1122
		1123	for (archetype *at = arch->more; at; at = at->more)
		1124	{
		1125	object *op = arch_to_object (at);
		1126
		1127	op->name = name;
		1128	op->name_pl = name_pl;
		1129	op->title = title;
		1130
		1131	op->head = this;
		1132	prev->more = op;
		1133
		1134	prev = op;
		1135	}
		1136	}
		1137
1305	/*	1138	/*
1306	* same as insert_ob_in_map except it handle separate coordinates and do a clean	1139	* same as insert_ob_in_map except it handles separate coordinates and does a clean
1307	* job preparing multi-part monsters	1140	* job preparing multi-part monsters.
1308	*/	1141	*/
		1142	object *
1309	object *insert_ob_in_map_at(object *op, mapstruct *m, object *originator, int flag, int x, int y){	1143	insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)
1310	object* tmp;	1144	{
1311	if (op->head)	1145	for (object *tmp = op->head_ (); tmp; tmp = tmp->more)
1312	op=op->head;	1146	{
1313	for (tmp=op;tmp;tmp=tmp->more){
1314	tmp->x=x+tmp->arch->clone.x;	1147	tmp->x = x + tmp->arch->clone.x;
1315	tmp->y=y+tmp->arch->clone.y;	1148	tmp->y = y + tmp->arch->clone.y;
1316	}	1149	}
		1150
1317	return insert_ob_in_map (op, m, originator, flag);	1151	return insert_ob_in_map (op, m, originator, flag);
1318	}	1152	}
1319		1153
1320	/*	1154	/*
1321	* insert_ob_in_map (op, map, originator, flag):	1155	* insert_ob_in_map (op, map, originator, flag):
1322	* This function inserts the object in the two-way linked list	1156	* This function inserts the object in the two-way linked list
…		…
1335	* Return value:	1169	* Return value:
1336	* new object if 'op' was merged with other object	1170	* new object if 'op' was merged with other object
1337	* NULL if 'op' was destroyed	1171	* NULL if 'op' was destroyed
1338	* just 'op' otherwise	1172	* just 'op' otherwise
1339	*/	1173	*/
1340		1174	object *
1341	object *insert_ob_in_map (object *op, mapstruct *m, object *originator, int flag)	1175	insert_ob_in_map (object *op, maptile *m, object *originator, int flag)
1342	{	1176	{
		1177	assert (!op->flag [FLAG_FREED]);
		1178
1343	object *tmp, *top, *floor=NULL;	1179	object *tmp, *top, *floor = NULL;
1344	sint16 x,y;
1345		1180
1346	if (QUERY_FLAG (op, FLAG_FREED)) {	1181	op->remove ();
1347	LOG (llevError, "Trying to insert freed object!\n");	1182
1348	return NULL;	1183	#if 0
1349	}	1184	if (!m->active != !op->active)
1350	if(m==NULL) {	1185	if (m->active)
1351	dump_object(op);	1186	op->activate_recursive ();
1352	LOG(llevError,"Trying to insert in null-map!\n%s\n",errmsg);	1187	else
1353	return op;	1188	op->deactivate_recursive ();
1354	}	1189	#endif
		1190
1355	if(out_of_map(m,op->x,op->y)) {	1191	if (out_of_map (m, op->x, op->y))
1356	dump_object(op);	1192	{
1357	LOG(llevError,"Trying to insert object outside the map.\n%s\n", errmsg);	1193	LOG (llevError, "Trying to insert object outside the map.\n%s\n", op->debug_desc ());
1358	#ifdef MANY_CORES	1194	#ifdef MANY_CORES
1359	/* Better to catch this here, as otherwise the next use of this object	1195	/* Better to catch this here, as otherwise the next use of this object
1360	* is likely to cause a crash. Better to find out where it is getting	1196	* is likely to cause a crash. Better to find out where it is getting
1361	* improperly inserted.	1197	* improperly inserted.
1362	*/	1198	*/
1363	abort();	1199	abort ();
1364	#endif	1200	#endif
1365	return op;	1201	return op;
1366	}	1202	}
1367	if(!QUERY_FLAG(op,FLAG_REMOVED)) {
1368	dump_object(op);
1369	LOG(llevError,"Trying to insert (map) inserted object.\n%s\n", errmsg);
1370	return op;
1371	}
1372	if(op->more!=NULL) {
1373	/* The part may be on a different map. */
1374		1203
1375	object *more = op->more;	1204	if (object *more = op->more)
1376		1205	{
1377	/* We really need the caller to normalize coordinates - if	1206	if (!insert_ob_in_map (more, m, originator, flag))
1378	* we set the map, that doesn't work if the location is within
1379	* a map and this is straddling an edge. So only if coordinate
1380	* is clear wrong do we normalize it.
1381	*/
1382	if (OUT_OF_REAL_MAP(more->map, more->x, more->y)) {
1383	more->map = get_map_from_coord(m, &more->x, &more->y);
1384	} else if (!more->map) {
1385	/* For backwards compatibility - when not dealing with tiled maps,
1386	* more->map should always point to the parent.
1387	*/
1388	more->map = m;
1389	}	1207	{
1390
1391	if (insert_ob_in_map(more, more->map, originator, flag) == NULL) {
1392	if ( ! op->head)	1208	if (!op->head)
1393	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");	1209	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");
		1210
1394	return NULL;	1211	return 0;
1395	}	1212	}
1396	}	1213	}
		1214
1397	CLEAR_FLAG(op,FLAG_REMOVED);	1215	CLEAR_FLAG (op, FLAG_REMOVED);
1398		1216
1399	/* Ideally, the caller figures this out. However, it complicates a lot	1217	/* Ideally, the caller figures this out. However, it complicates a lot
1400	* of areas of callers (eg, anything that uses find_free_spot would now	1218	* of areas of callers (eg, anything that uses find_free_spot would now
1401	* need extra work	1219	* need extra work
1402	*/	1220	*/
1403	op->map=get_map_from_coord(m, &op->x, &op->y);	1221	if (!xy_normalise (m, op->x, op->y))
1404	x = op->x;	1222	return 0;
1405	y = op->y;
1406		1223
		1224	op->map = m;
		1225	mapspace &ms = op->ms ();
		1226
1407	/* this has to be done after we translate the coordinates.	1227	/* this has to be done after we translate the coordinates.
1408	*/	1228	*/
1409	if(op->nrof && !(flag & INS_NO_MERGE)) {	1229	if (op->nrof && !(flag & INS_NO_MERGE))
1410	for(tmp=GET_MAP_OB(op->map,x,y);tmp!=NULL;tmp=tmp->above)	1230	for (tmp = ms.bot; tmp; tmp = tmp->above)
1411	if (CAN_MERGE(op,tmp)) {	1231	if (object::can_merge (op, tmp))
		1232	{
1412	op->nrof+=tmp->nrof;	1233	op->nrof += tmp->nrof;
1413	remove_ob(tmp);	1234	tmp->destroy ();
1414	free_object(tmp);	1235	}
		1236
		1237	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */
		1238	CLEAR_FLAG (op, FLAG_INV_LOCKED);
		1239
		1240	if (!QUERY_FLAG (op, FLAG_ALIVE))
		1241	CLEAR_FLAG (op, FLAG_NO_STEAL);
		1242
		1243	if (flag & INS_BELOW_ORIGINATOR)
		1244	{
		1245	if (originator->map != op->map || originator->x != op->x || originator->y != op->y)
		1246	{
		1247	LOG (llevError, "insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");
		1248	abort ();
		1249	}
		1250
		1251	op->above = originator;
		1252	op->below = originator->below;
		1253
		1254	if (op->below)
		1255	op->below->above = op;
		1256	else
		1257	ms.bot = op;
		1258
		1259	/* since *below* originator, no need to update top */
		1260	originator->below = op;
		1261	}
		1262	else
		1263	{
		1264	top = ms.bot;
		1265
		1266	/* If there are other objects, then */
		1267	if ((!(flag & INS_MAP_LOAD)) && top)
		1268	{
		1269	object *last = 0;
		1270
		1271	/*
		1272	* If there are multiple objects on this space, we do some trickier handling.
		1273	* We've already dealt with merging if appropriate.
		1274	* Generally, we want to put the new object on top. But if
		1275	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last
		1276	* floor, we want to insert above that and no further.
		1277	* Also, if there are spell objects on this space, we stop processing
		1278	* once we get to them. This reduces the need to traverse over all of
		1279	* them when adding another one - this saves quite a bit of cpu time
		1280	* when lots of spells are cast in one area. Currently, it is presumed
		1281	* that flying non pickable objects are spell objects.
		1282	*/
		1283	for (top = ms.bot; top; top = top->above)
		1284	{
		1285	if (QUERY_FLAG (top, FLAG_IS_FLOOR) || QUERY_FLAG (top, FLAG_OVERLAY_FLOOR))
		1286	floor = top;
		1287
		1288	if (QUERY_FLAG (top, FLAG_NO_PICK) && (top->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (top, FLAG_IS_FLOOR))
		1289	{
		1290	/* We insert above top, so we want this object below this */
		1291	top = top->below;
		1292	break;
		1293	}
		1294
		1295	last = top;
1415	}	1296	}
1416	}
1417		1297
1418	CLEAR_FLAG(op,FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */	1298	/* Don't want top to be NULL, so set it to the last valid object */
1419	CLEAR_FLAG(op, FLAG_INV_LOCKED);	1299	top = last;
1420	if (!QUERY_FLAG(op, FLAG_ALIVE))
1421	CLEAR_FLAG(op, FLAG_NO_STEAL);
1422		1300
1423	if (flag & INS_BELOW_ORIGINATOR) {	1301	/* We let update_position deal with figuring out what the space
1424	if (originator->map != op->map || originator->x != op->x ||	1302	* looks like instead of lots of conditions here.
1425	originator->y != op->y) {	1303	* makes things faster, and effectively the same result.
1426	LOG(llevError,"insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");
1427	abort();
1428	}
1429	op->above = originator;
1430	op->below = originator->below;
1431	if (op->below) op->below->above = op;
1432	else SET_MAP_OB(op->map, op->x, op->y, op);
1433	/* since *below* originator, no need to update top */
1434	originator->below = op;
1435	} else {
1436	/* If there are other objects, then */
1437	if((! (flag & INS_MAP_LOAD)) && ((top=GET_MAP_OB(op->map,op->x,op->y))!=NULL)) {
1438	object *last=NULL;
1439	/*	1304	*/
1440	* If there are multiple objects on this space, we do some trickier handling.	1305
1441	* We've already dealt with merging if appropriate.	1306	/* Have object 'fall below' other objects that block view.
1442	* Generally, we want to put the new object on top. But if	1307	* Unless those objects are exits.
1443	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last	1308	* If INS_ON_TOP is used, don't do this processing
1444	* floor, we want to insert above that and no further.	1309	* Need to find the object that in fact blocks view, otherwise
1445	* Also, if there are spell objects on this space, we stop processing	1310	* stacking is a bit odd.
1446	* once we get to them. This reduces the need to traverse over all of	1311	*/
1447	* them when adding another one - this saves quite a bit of cpu time	1312	if (!(flag & INS_ON_TOP)
1448	* when lots of spells are cast in one area. Currently, it is presumed	1313	&& ms.flags () & P_BLOCKSVIEW
1449	* that flying non pickable objects are spell objects.	1314	&& (op->face && !faces [op->face].visibility))
		1315	{
		1316	for (last = top; last != floor; last = last->below)
		1317	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))
		1318	break;
		1319
		1320	/* Check to see if we found the object that blocks view,
		1321	* and make sure we have a below pointer for it so that
		1322	* we can get inserted below this one, which requires we
		1323	* set top to the object below us.
1450	*/	1324	*/
1451		1325	if (last && last->below && last != floor)
1452	while (top != NULL) {
1453	if (QUERY_FLAG(top, FLAG_IS_FLOOR) ||
1454	QUERY_FLAG(top, FLAG_OVERLAY_FLOOR)) floor = top;
1455	if (QUERY_FLAG(top, FLAG_NO_PICK)
1456	&& (top->move_type & (MOVE_FLY_LOW |MOVE_FLY_HIGH))
1457	&& !QUERY_FLAG(top, FLAG_IS_FLOOR))
1458	{
1459	/* We insert above top, so we want this object below this */
1460	top=top->below;
1461	break;
1462	}
1463	last = top;
1464	top = top->above;	1326	top = last->below;
1465	}	1327	}
1466	/* Don't want top to be NULL, so set it to the last valid object */
1467	top = last;
1468
1469	/* We let update_position deal with figuring out what the space
1470	* looks like instead of lots of conditions here.
1471	* makes things faster, and effectively the same result.
1472	*/
1473
1474	/* Have object 'fall below' other objects that block view.
1475	* Unless those objects are exits, type 66
1476	* If INS_ON_TOP is used, don't do this processing
1477	* Need to find the object that in fact blocks view, otherwise
1478	* stacking is a bit odd.
1479	*/
1480	if (!(flag & INS_ON_TOP) &&
1481	(get_map_flags(op->map, NULL, op->x, op->y, NULL, NULL) & P_BLOCKSVIEW) &&
1482	(op->face && !op->face->visibility)) {
1483	for (last=top; last != floor; last=last->below)
1484	if (QUERY_FLAG(last, FLAG_BLOCKSVIEW)&&(last->type != EXIT)) break;
1485	/* Check to see if we found the object that blocks view,
1486	* and make sure we have a below pointer for it so that
1487	* we can get inserted below this one, which requires we
1488	* set top to the object below us.
1489	*/
1490	if (last && last->below && last != floor) top=last->below;
1491	}
1492	} /* If objects on this space */	1328	} /* If objects on this space */
		1329
1493	if (flag & INS_MAP_LOAD)	1330	if (flag & INS_MAP_LOAD)
1494	top = GET_MAP_TOP(op->map,op->x,op->y);	1331	top = ms.top;
		1332
1495	if (flag & INS_ABOVE_FLOOR_ONLY) top = floor;	1333	if (flag & INS_ABOVE_FLOOR_ONLY)
		1334	top = floor;
1496		1335
1497	/* Top is the object that our object (op) is going to get inserted above.	1336	/* Top is the object that our object (op) is going to get inserted above.
1498	*/	1337	*/
1499		1338
1500	/* First object on this space */	1339	/* First object on this space */
1501	if (!top) {	1340	if (!top)
1502	op->above = GET_MAP_OB(op->map, op->x, op->y);	1341	{
		1342	op->above = ms.bot;
		1343
		1344	if (op->above)
1503	if (op->above) op->above->below = op;	1345	op->above->below = op;
		1346
1504	op->below = NULL;	1347	op->below = 0;
1505	SET_MAP_OB(op->map, op->x, op->y, op);	1348	ms.bot = op;
		1349	}
		1350	else
1506	} else { /* get inserted into the stack above top */	1351	{ /* get inserted into the stack above top */
1507	op->above = top->above;	1352	op->above = top->above;
		1353
		1354	if (op->above)
1508	if (op->above) op->above->below = op;	1355	op->above->below = op;
		1356
1509	op->below = top;	1357	op->below = top;
1510	top->above = op;	1358	top->above = op;
1511	}	1359	}
		1360
1512	if (op->above==NULL)	1361	if (!op->above)
1513	SET_MAP_TOP(op->map,op->x, op->y, op);	1362	ms.top = op;
1514	} /* else not INS_BELOW_ORIGINATOR */	1363	} /* else not INS_BELOW_ORIGINATOR */
1515		1364
1516	if(op->type==PLAYER)	1365	if (op->type == PLAYER)
		1366	{
1517	op->contr->do_los=1;	1367	op->contr->do_los = 1;
		1368	++op->map->players;
		1369	op->map->touch ();
		1370	}
1518		1371
		1372	op->map->dirty = true;
		1373
1519	/* If we have a floor, we know the player, if any, will be above	1374	/* If we have a floor, we know the player, if any, will be above
1520	* it, so save a few ticks and start from there.	1375	* it, so save a few ticks and start from there.
1521	*/	1376	*/
1522	if (!(flag & INS_MAP_LOAD))	1377	if (!(flag & INS_MAP_LOAD))
1523	for(tmp=floor?floor:GET_MAP_OB(op->map,op->x,op->y);tmp!=NULL;tmp=tmp->above) {	1378	if (object *pl = ms.player ())
1524	if (tmp->type == PLAYER)	1379	if (pl->contr->ns)
1525	tmp->contr->socket.update_look=1;	1380	pl->contr->ns->floorbox_update ();
1526	}
1527		1381
1528	/* If this object glows, it may affect lighting conditions that are	1382	/* If this object glows, it may affect lighting conditions that are
1529	* visible to others on this map. But update_all_los is really	1383	* visible to others on this map. But update_all_los is really
1530	* an inefficient way to do this, as it means los for all players	1384	* an inefficient way to do this, as it means los for all players
1531	* on the map will get recalculated. The players could very well	1385	* on the map will get recalculated. The players could very well
1532	* be far away from this change and not affected in any way -	1386	* be far away from this change and not affected in any way -
1533	* this should get redone to only look for players within range,	1387	* this should get redone to only look for players within range,
1534	* or just updating the P_NEED_UPDATE for spaces within this area	1388	* or just updating the P_UPTODATE for spaces within this area
1535	* of effect may be sufficient.	1389	* of effect may be sufficient.
1536	*/	1390	*/
1537	if(MAP_DARKNESS(op->map) && (op->glow_radius != 0))	1391	if (op->map->darkness && (op->glow_radius != 0))
1538	update_all_los(op->map, op->x, op->y);	1392	update_all_los (op->map, op->x, op->y);
1539		1393
1540
1541	/* updates flags (blocked, alive, no magic, etc) for this map space */	1394	/* updates flags (blocked, alive, no magic, etc) for this map space */
1542	update_object(op,UP_OBJ_INSERT);	1395	update_object (op, UP_OBJ_INSERT);
1543		1396
		1397	INVOKE_OBJECT (INSERT, op);
1544		1398
1545	/* Don't know if moving this to the end will break anything. However,	1399	/* Don't know if moving this to the end will break anything. However,
1546	* we want to have update_look set above before calling this.	1400	* we want to have floorbox_update called before calling this.
1547	*	1401	*
1548	* check_move_on() must be after this because code called from	1402	* check_move_on() must be after this because code called from
1549	* check_move_on() depends on correct map flags (so functions like	1403	* check_move_on() depends on correct map flags (so functions like
1550	* blocked() and wall() work properly), and these flags are updated by	1404	* blocked() and wall() work properly), and these flags are updated by
1551	* update_object().	1405	* update_object().
1552	*/	1406	*/
1553		1407
1554	/* if this is not the head or flag has been passed, don't check walk on status */	1408	/* if this is not the head or flag has been passed, don't check walk on status */
1555
1556	if (!(flag & INS_NO_WALK_ON) && !op->head) {	1409	if (!(flag & INS_NO_WALK_ON) && !op->head)
		1410	{
1557	if (check_move_on(op, originator))	1411	if (check_move_on (op, originator))
1558	return NULL;	1412	return 0;
1559		1413
1560	/* If we are a multi part object, lets work our way through the check	1414	/* If we are a multi part object, lets work our way through the check
1561	* walk on's.	1415	* walk on's.
1562	*/	1416	*/
1563	for (tmp=op->more; tmp!=NULL; tmp=tmp->more)	1417	for (tmp = op->more; tmp != NULL; tmp = tmp->more)
1564	if (check_move_on (tmp, originator))	1418	if (check_move_on (tmp, originator))
1565	return NULL;	1419	return 0;
1566	}	1420	}
		1421
1567	return op;	1422	return op;
1568	}	1423	}
1569		1424
1570	/* this function inserts an object in the map, but if it	1425	/* this function inserts an object in the map, but if it
1571	* finds an object of its own type, it'll remove that one first.	1426	* finds an object of its own type, it'll remove that one first.
1572	* op is the object to insert it under: supplies x and the map.	1427	* op is the object to insert it under: supplies x and the map.
1573	*/	1428	*/
		1429	void
1574	void replace_insert_ob_in_map(const char *arch_string, object *op) {	1430	replace_insert_ob_in_map (const char *arch_string, object *op)
1575	object *tmp;	1431	{
1576	object *tmp1;	1432	object *tmp, *tmp1;
1577		1433
1578	/* first search for itself and remove any old instances */	1434	/* first search for itself and remove any old instances */
1579		1435
1580	for(tmp=GET_MAP_OB(op->map,op->x,op->y); tmp!=NULL; tmp=tmp->above) {	1436	for (tmp = op->ms ().bot; tmp; tmp = tmp->above)
1581	if(!strcmp(tmp->arch->name,arch_string)) /* same archetype */ {	1437	if (!strcmp (tmp->arch->name, arch_string)) /* same archetype */
1582	remove_ob(tmp);	1438	tmp->destroy ();
1583	free_object(tmp);
1584	}
1585	}
1586		1439
1587	tmp1=arch_to_object(find_archetype(arch_string));	1440	tmp1 = arch_to_object (archetype::find (arch_string));
1588		1441
1589		1442	tmp1->x = op->x;
1590	tmp1->x = op->x; tmp1->y = op->y;	1443	tmp1->y = op->y;
1591	insert_ob_in_map(tmp1,op->map,op,0);	1444	insert_ob_in_map (tmp1, op->map, op, 0);
1592	}	1445	}
		1446
		1447	object *
		1448	object::insert_at (object *where, object *originator, int flags)
		1449	{
		1450	return where->map->insert (this, where->x, where->y, originator, flags);
		1451	}
1593		1452
1594	/*	1453	/*
1595	* get_split_ob(ob,nr) splits up ob into two parts. The part which	1454	* get_split_ob(ob,nr) splits up ob into two parts. The part which
1596	* is returned contains nr objects, and the remaining parts contains	1455	* is returned contains nr objects, and the remaining parts contains
1597	* the rest (or is removed and freed if that number is 0).	1456	* the rest (or is removed and freed if that number is 0).
1598	* On failure, NULL is returned, and the reason put into the	1457	* On failure, NULL is returned, and the reason put into the
1599	* global static errmsg array.	1458	* global static errmsg array.
1600	*/	1459	*/
1601		1460	object *
1602	object *get_split_ob(object *orig_ob, uint32 nr) {	1461	get_split_ob (object *orig_ob, uint32 nr)
		1462	{
1603	object *newob;	1463	object *newob;
1604	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);	1464	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);
1605		1465
1606	if(orig_ob->nrof<nr) {	1466	if (orig_ob->nrof < nr)
1607	sprintf(errmsg,"There are only %d %ss.",	1467	{
1608	orig_ob->nrof?orig_ob->nrof:1, &orig_ob->name);	1468	sprintf (errmsg, "There are only %d %ss.", orig_ob->nrof ? orig_ob->nrof : 1, &orig_ob->name);
1609	return NULL;	1469	return NULL;
1610	}	1470	}
		1471
1611	newob = object_create_clone(orig_ob);	1472	newob = object_create_clone (orig_ob);
		1473
1612	if((orig_ob->nrof-=nr)<1) {	1474	if ((orig_ob->nrof -= nr) < 1)
1613	if ( ! is_removed)	1475	orig_ob->destroy (1);
1614	remove_ob(orig_ob);
1615	free_object2(orig_ob, 1);
1616	}
1617	else if ( ! is_removed) {	1476	else if (!is_removed)
		1477	{
1618	if(orig_ob->env!=NULL)	1478	if (orig_ob->env != NULL)
1619	sub_weight (orig_ob->env,orig_ob->weight*nr);	1479	sub_weight (orig_ob->env, orig_ob->weight * nr);
1620	if (orig_ob->env == NULL && orig_ob->map->in_memory!=MAP_IN_MEMORY) {	1480	if (orig_ob->env == NULL && orig_ob->map->in_memory != MAP_IN_MEMORY)
		1481	{
1621	strcpy(errmsg, "Tried to split object whose map is not in memory.");	1482	strcpy (errmsg, "Tried to split object whose map is not in memory.");
1622	LOG(llevDebug,
1623	"Error, Tried to split object whose map is not in memory.\n");	1483	LOG (llevDebug, "Error, Tried to split object whose map is not in memory.\n");
1624	return NULL;	1484	return NULL;
1625	}	1485	}
1626	}	1486	}
		1487
1627	newob->nrof=nr;	1488	newob->nrof = nr;
1628		1489
1629	return newob;	1490	return newob;
1630	}	1491	}
1631		1492
1632	/*	1493	/*
1633	* decrease_ob_nr(object, number) decreases a specified number from	1494	* decrease_ob_nr(object, number) decreases a specified number from
1634	* the amount of an object. If the amount reaches 0, the object	1495	* the amount of an object. If the amount reaches 0, the object
1635	* is subsequently removed and freed.	1496	* is subsequently removed and freed.
1636	*	1497	*
1637	* Return value: 'op' if something is left, NULL if the amount reached 0	1498	* Return value: 'op' if something is left, NULL if the amount reached 0
1638	*/	1499	*/
1639		1500	object *
1640	object *decrease_ob_nr (object *op, uint32 i)	1501	decrease_ob_nr (object *op, uint32 i)
1641	{	1502	{
1642	object *tmp;	1503	object *tmp;
1643	player *pl;
1644		1504
1645	if (i == 0) /* objects with op->nrof require this check */	1505	if (i == 0) /* objects with op->nrof require this check */
1646	return op;	1506	return op;
1647		1507
1648	if (i > op->nrof)	1508	if (i > op->nrof)
1649	i = op->nrof;	1509	i = op->nrof;
1650		1510
1651	if (QUERY_FLAG (op, FLAG_REMOVED))	1511	if (QUERY_FLAG (op, FLAG_REMOVED))
		1512	op->nrof -= i;
		1513	else if (op->env)
		1514	{
		1515	/* is this object in the players inventory, or sub container
		1516	* therein?
		1517	*/
		1518	tmp = op->in_player ();
		1519	/* nope. Is this a container the player has opened?
		1520	* If so, set tmp to that player.
		1521	* IMO, searching through all the players will mostly
		1522	* likely be quicker than following op->env to the map,
		1523	* and then searching the map for a player.
		1524	*/
		1525	if (!tmp)
		1526	for_all_players (pl)
		1527	if (pl->ob->container == op->env)
		1528	{
		1529	tmp = pl->ob;
		1530	break;
		1531	}
		1532
		1533	if (i < op->nrof)
		1534	{
		1535	sub_weight (op->env, op->weight * i);
		1536	op->nrof -= i;
		1537	if (tmp)
		1538	esrv_send_item (tmp, op);
		1539	}
		1540	else
		1541	{
		1542	op->remove ();
		1543	op->nrof = 0;
		1544	if (tmp)
		1545	esrv_del_item (tmp->contr, op->count);
		1546	}
1652	{	1547	}
		1548	else
		1549	{
		1550	object *above = op->above;
		1551
		1552	if (i < op->nrof)
1653	op->nrof -= i;	1553	op->nrof -= i;
1654	}	1554	else
1655	else if (op->env != NULL)
1656	{
1657	/* is this object in the players inventory, or sub container
1658	* therein?
1659	*/
1660	tmp = is_player_inv (op->env);
1661	/* nope. Is this a container the player has opened?
1662	* If so, set tmp to that player.
1663	* IMO, searching through all the players will mostly
1664	* likely be quicker than following op->env to the map,
1665	* and then searching the map for a player.
1666	*/
1667	if (!tmp) {
1668	for (pl=first_player; pl; pl=pl->next)
1669	if (pl->ob->container == op->env) break;
1670	if (pl) tmp=pl->ob;
1671	else tmp=NULL;
1672	}	1555	{
1673
1674	if (i < op->nrof) {
1675	sub_weight (op->env, op->weight * i);
1676	op->nrof -= i;
1677	if (tmp) {
1678	esrv_send_item(tmp, op);
1679	}
1680	} else {
1681	remove_ob (op);	1556	op->remove ();
1682	op->nrof = 0;	1557	op->nrof = 0;
1683	if (tmp) {
1684	esrv_del_item(tmp->contr, op->count);
1685	}	1558	}
1686	}
1687	}
1688	else
1689	{
1690	object *above = op->above;
1691		1559
1692	if (i < op->nrof) {
1693	op->nrof -= i;
1694	} else {
1695	remove_ob (op);
1696	op->nrof = 0;
1697	}
1698	/* Since we just removed op, op->above is null */	1560	/* Since we just removed op, op->above is null */
1699	for (tmp = above; tmp != NULL; tmp = tmp->above)	1561	for (tmp = above; tmp; tmp = tmp->above)
1700	if (tmp->type == PLAYER) {	1562	if (tmp->type == PLAYER)
		1563	{
1701	if (op->nrof)	1564	if (op->nrof)
1702	esrv_send_item(tmp, op);	1565	esrv_send_item (tmp, op);
1703	else	1566	else
1704	esrv_del_item(tmp->contr, op->count);	1567	esrv_del_item (tmp->contr, op->count);
1705	}	1568	}
1706	}	1569	}
1707		1570
1708	if (op->nrof) {	1571	if (op->nrof)
1709	return op;	1572	return op;
1710	} else {	1573	else
1711	free_object (op);	1574	{
		1575	op->destroy ();
1712	return NULL;	1576	return 0;
1713	}	1577	}
1714	}	1578	}
1715		1579
1716	/*	1580	/*
1717	* add_weight(object, weight) adds the specified weight to an object,	1581	* add_weight(object, weight) adds the specified weight to an object,
1718	* and also updates how much the environment(s) is/are carrying.	1582	* and also updates how much the environment(s) is/are carrying.
1719	*/	1583	*/
1720		1584	void
1721	void add_weight (object *op, signed long weight) {	1585	add_weight (object *op, signed long weight)
		1586	{
1722	while (op!=NULL) {	1587	while (op != NULL)
		1588	{
1723	if (op->type == CONTAINER) {	1589	if (op->type == CONTAINER)
1724	weight=(signed long)(weight*(100-op->stats.Str)/100);	1590	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1725	}	1591
1726	op->carrying+=weight;	1592	op->carrying += weight;
1727	op=op->env;	1593	op = op->env;
1728	}	1594	}
1729	}	1595	}
1730		1596
		1597	object *
		1598	insert_ob_in_ob (object *op, object *where)
		1599	{
		1600	if (!where)
		1601	{
		1602	char *dump = dump_object (op);
		1603	LOG (llevError, "Trying to put object in NULL.\n%s\n", dump);
		1604	free (dump);
		1605	return op;
		1606	}
		1607
		1608	if (where->head)
		1609	{
		1610	LOG (llevDebug, "Warning: Tried to insert object into wrong part of multipart object.\n");
		1611	where = where->head;
		1612	}
		1613
		1614	return where->insert (op);
		1615	}
		1616
1731	/*	1617	/*
1732	* insert_ob_in_ob(op,environment):	1618	* env->insert (op)
1733	* This function inserts the object op in the linked list	1619	* This function inserts the object op in the linked list
1734	* inside the object environment.	1620	* inside the object environment.
1735	*	1621	*
1736	* Eneq(@csd.uu.se): Altered insert_ob_in_ob to make things picked up enter
1737	* the inventory at the last position or next to other objects of the same
1738	* type.
1739	* Frank: Now sorted by type, archetype and magic!
1740	*
1741	* The function returns now pointer to inserted item, and return value can	1622	* The function returns now pointer to inserted item, and return value can
1742	* be != op, if items are merged. -Tero	1623	* be != op, if items are merged. -Tero
1743	*/	1624	*/
1744		1625	object *
1745	object *insert_ob_in_ob(object *op,object *where) {	1626	object::insert (object *op)
		1627	{
1746	object *tmp, *otmp;	1628	object *tmp, *otmp;
1747		1629
1748	if(!QUERY_FLAG(op,FLAG_REMOVED)) {	1630	if (!QUERY_FLAG (op, FLAG_REMOVED))
1749	dump_object(op);	1631	op->remove ();
1750	LOG(llevError,"Trying to insert (ob) inserted object.\n%s\n", errmsg);	1632
1751	return op;
1752	}
1753	if(where==NULL) {
1754	dump_object(op);
1755	LOG(llevError,"Trying to put object in NULL.\n%s\n", errmsg);
1756	return op;
1757	}
1758	if (where->head) {
1759	LOG(llevDebug,
1760	"Warning: Tried to insert object wrong part of multipart object.\n");
1761	where = where->head;
1762	}
1763	if (op->more) {	1633	if (op->more)
		1634	{
1764	LOG(llevError, "Tried to insert multipart object %s (%d)\n",	1635	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);
1765	&op->name, op->count);
1766	return op;	1636	return op;
1767	}	1637	}
		1638
1768	CLEAR_FLAG(op, FLAG_OBJ_ORIGINAL);	1639	CLEAR_FLAG (op, FLAG_OBJ_ORIGINAL);
1769	CLEAR_FLAG(op, FLAG_REMOVED);	1640	CLEAR_FLAG (op, FLAG_REMOVED);
1770	if(op->nrof) {	1641	if (op->nrof)
		1642	{
1771	for(tmp=where->inv;tmp!=NULL;tmp=tmp->below)	1643	for (tmp = inv; tmp != NULL; tmp = tmp->below)
1772	if ( CAN_MERGE(tmp,op) ) {	1644	if (object::can_merge (tmp, op))
		1645	{
1773	/* return the original object and remove inserted object	1646	/* return the original object and remove inserted object
1774	(client needs the original object) */	1647	(client needs the original object) */
1775	tmp->nrof += op->nrof;	1648	tmp->nrof += op->nrof;
1776	/* Weight handling gets pretty funky. Since we are adding to	1649	/* Weight handling gets pretty funky. Since we are adding to
1777	* tmp->nrof, we need to increase the weight.	1650	* tmp->nrof, we need to increase the weight.
1778	*/	1651	*/
1779	add_weight (where, op->weight*op->nrof);	1652	add_weight (this, op->weight * op->nrof);
1780	SET_FLAG(op, FLAG_REMOVED);	1653	SET_FLAG (op, FLAG_REMOVED);
1781	free_object(op); /* free the inserted object */	1654	op->destroy (); /* free the inserted object */
1782	op = tmp;	1655	op = tmp;
1783	remove_ob (op); /* and fix old object's links */	1656	op->remove (); /* and fix old object's links */
1784	CLEAR_FLAG(op, FLAG_REMOVED);	1657	CLEAR_FLAG (op, FLAG_REMOVED);
1785	break;	1658	break;
1786	}	1659	}
1787		1660
1788	/* I assume combined objects have no inventory	1661	/* I assume combined objects have no inventory
1789	* We add the weight - this object could have just been removed	1662	* We add the weight - this object could have just been removed
1790	* (if it was possible to merge). calling remove_ob will subtract	1663	* (if it was possible to merge). calling remove_ob will subtract
1791	* the weight, so we need to add it in again, since we actually do	1664	* the weight, so we need to add it in again, since we actually do
1792	* the linking below	1665	* the linking below
1793	*/	1666	*/
1794	add_weight (where, op->weight*op->nrof);	1667	add_weight (this, op->weight * op->nrof);
		1668	}
1795	} else	1669	else
1796	add_weight (where, (op->weight+op->carrying));	1670	add_weight (this, (op->weight + op->carrying));
1797		1671
1798	otmp=is_player_inv(where);	1672	otmp = this->in_player ();
1799	if (otmp&&otmp->contr!=NULL) {	1673	if (otmp && otmp->contr)
1800	if (!QUERY_FLAG(otmp,FLAG_NO_FIX_PLAYER))	1674	if (!QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1801	fix_player(otmp);	1675	otmp->update_stats ();
1802	}
1803		1676
1804	op->map=NULL;	1677	op->map = 0;
1805	op->env=where;	1678	op->env = this;
1806	op->above=NULL;	1679	op->above = 0;
1807	op->below=NULL;	1680	op->below = 0;
1808	op->x=0,op->y=0;	1681	op->x = 0, op->y = 0;
1809		1682
1810	/* reset the light list and los of the players on the map */	1683	/* reset the light list and los of the players on the map */
1811	if((op->glow_radius!=0)&&where->map)	1684	if ((op->glow_radius != 0) && map)
1812	{	1685	{
1813	#ifdef DEBUG_LIGHTS	1686	#ifdef DEBUG_LIGHTS
1814	LOG(llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n",	1687	LOG (llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n", op->name);
1815	op->name);
1816	#endif /* DEBUG_LIGHTS */	1688	#endif /* DEBUG_LIGHTS */
1817	if (MAP_DARKNESS(where->map)) update_all_los(where->map, where->x, where->y);	1689	if (map->darkness)
		1690	update_all_los (map, x, y);
1818	}	1691	}
1819		1692
1820	/* Client has no idea of ordering so lets not bother ordering it here.	1693	/* Client has no idea of ordering so lets not bother ordering it here.
1821	* It sure simplifies this function...	1694	* It sure simplifies this function...
1822	*/	1695	*/
1823	if (where->inv==NULL)	1696	if (!inv)
1824	where->inv=op;	1697	inv = op;
1825	else {	1698	else
		1699	{
1826	op->below = where->inv;	1700	op->below = inv;
1827	op->below->above = op;	1701	op->below->above = op;
1828	where->inv = op;	1702	inv = op;
1829	}	1703	}
		1704
		1705	INVOKE_OBJECT (INSERT, this);
		1706
1830	return op;	1707	return op;
1831	}	1708	}
1832		1709
1833	/*	1710	/*
1834	* Checks if any objects has a move_type that matches objects	1711	* Checks if any objects has a move_type that matches objects
…		…
1848	*	1725	*
1849	* MSW 2001-07-08: Check all objects on space, not just those below	1726	* MSW 2001-07-08: Check all objects on space, not just those below
1850	* object being inserted. insert_ob_in_map may not put new objects	1727	* object being inserted. insert_ob_in_map may not put new objects
1851	* on top.	1728	* on top.
1852	*/	1729	*/
1853		1730	int
1854	int check_move_on (object *op, object *originator)	1731	check_move_on (object *op, object *originator)
1855	{	1732	{
1856	object *tmp;	1733	object *tmp;
1857	tag_t tag;
1858	mapstruct *m=op->map;	1734	maptile *m = op->map;
1859	int x=op->x, y=op->y;	1735	int x = op->x, y = op->y;
		1736
1860	MoveType move_on, move_slow, move_block;	1737	MoveType move_on, move_slow, move_block;
1861		1738
1862	if(QUERY_FLAG(op,FLAG_NO_APPLY))	1739	if (QUERY_FLAG (op, FLAG_NO_APPLY))
1863	return 0;	1740	return 0;
1864		1741
1865	tag = op->count;
1866
1867	move_on = GET_MAP_MOVE_ON(op->map, op->x, op->y);	1742	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);
1868	move_slow = GET_MAP_MOVE_SLOW(op->map, op->x, op->y);	1743	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);
1869	move_block = GET_MAP_MOVE_BLOCK(op->map, op->x, op->y);	1744	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);
1870		1745
1871	/* if nothing on this space will slow op down or be applied,	1746	/* if nothing on this space will slow op down or be applied,
1872	* no need to do checking below. have to make sure move_type	1747	* no need to do checking below. have to make sure move_type
1873	* is set, as lots of objects don't have it set - we treat that	1748	* is set, as lots of objects don't have it set - we treat that
1874	* as walking.	1749	* as walking.
1875	*/	1750	*/
1876	if (op->move_type && !(op->move_type & move_on) && !(op->move_type & move_slow))	1751	if (op->move_type && !(op->move_type & move_on) && !(op->move_type & move_slow))
1877	return 0;	1752	return 0;
1878		1753
1879	/* This is basically inverse logic of that below - basically,	1754	/* This is basically inverse logic of that below - basically,
1880	* if the object can avoid the move on or slow move, they do so,	1755	* if the object can avoid the move on or slow move, they do so,
1881	* but can't do it if the alternate movement they are using is	1756	* but can't do it if the alternate movement they are using is
1882	* blocked. Logic on this seems confusing, but does seem correct.	1757	* blocked. Logic on this seems confusing, but does seem correct.
1883	*/	1758	*/
1884	if ((op->move_type & ~move_on & ~move_block) != 0 &&	1759	if ((op->move_type & ~move_on & ~move_block) != 0 && (op->move_type & ~move_slow & ~move_block) != 0)
1885	(op->move_type & ~move_slow & ~move_block) != 0) return 0;	1760	return 0;
1886		1761
1887	/* The objects have to be checked from top to bottom.	1762	/* The objects have to be checked from top to bottom.
1888	* Hence, we first go to the top:	1763	* Hence, we first go to the top:
1889	*/	1764	*/
1890		1765
1891	for (tmp=GET_MAP_OB(op->map, op->x, op->y); tmp!=NULL &&	1766	for (tmp = op->ms ().bot; tmp && tmp->above; tmp = tmp->above)
1892	tmp->above!=NULL; tmp=tmp->above) {	1767	{
1893	/* Trim the search when we find the first other spell effect	1768	/* Trim the search when we find the first other spell effect
1894	* this helps performance so that if a space has 50 spell objects,	1769	* this helps performance so that if a space has 50 spell objects,
1895	* we don't need to check all of them.	1770	* we don't need to check all of them.
1896	*/	1771	*/
1897	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG(tmp, FLAG_NO_PICK)) break;	1772	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG (tmp, FLAG_NO_PICK))
		1773	break;
		1774	}
		1775
		1776	for (; tmp; tmp = tmp->below)
1898	}	1777	{
1899	for(;tmp!=NULL; tmp=tmp->below) {	1778	if (tmp == op)
1900	if (tmp == op) continue; /* Can't apply yourself */	1779	continue; /* Can't apply yourself */
1901		1780
1902	/* Check to see if one of the movement types should be slowed down.	1781	/* Check to see if one of the movement types should be slowed down.
1903	* Second check makes sure that the movement types not being slowed	1782	* Second check makes sure that the movement types not being slowed
1904	* (~slow_move) is not blocked on this space - just because the	1783	* (~slow_move) is not blocked on this space - just because the
1905	* space doesn't slow down swimming (for example), if you can't actually	1784	* space doesn't slow down swimming (for example), if you can't actually
1906	* swim on that space, can't use it to avoid the penalty.	1785	* swim on that space, can't use it to avoid the penalty.
1907	*/	1786	*/
1908	if (!QUERY_FLAG(op, FLAG_WIZPASS)) {	1787	if (!QUERY_FLAG (op, FLAG_WIZPASS))
		1788	{
1909	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||	1789	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||
1910	((op->move_type & tmp->move_slow) &&
1911	(op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0)) {	1790	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))
		1791	{
1912		1792
1913	float diff;	1793	float
1914
1915	diff = tmp->move_slow_penalty*FABS(op->speed);	1794	diff = tmp->move_slow_penalty * fabs (op->speed);
		1795
1916	if (op->type == PLAYER) {	1796	if (op->type == PLAYER)
1917	if ((QUERY_FLAG(tmp, FLAG_IS_HILLY) && find_skill_by_number(op, SK_CLIMBING)) ||	1797	if ((QUERY_FLAG (tmp, FLAG_IS_HILLY) && find_skill_by_number (op, SK_CLIMBING)) ||
1918	(QUERY_FLAG(tmp, FLAG_IS_WOODED) && find_skill_by_number(op, SK_WOODSMAN))) {	1798	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))
1919	diff /= 4.0;	1799	diff /= 4.0;
1920	}	1800
1921	}
1922	op->speed_left -= diff;	1801	op->speed_left -= diff;
1923	}	1802	}
1924	}	1803	}
1925		1804
1926	/* Basically same logic as above, except now for actual apply. */	1805	/* Basically same logic as above, except now for actual apply. */
1927	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||	1806	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||
1928	((op->move_type & tmp->move_on) &&
1929	(op->move_type & ~tmp->move_on & ~tmp->move_block)==0)) {	1807	((op->move_type & tmp->move_on) && (op->move_type & ~tmp->move_on & ~tmp->move_block) == 0))
1930		1808	{
1931	move_apply(tmp, op, originator);	1809	move_apply (tmp, op, originator);
		1810
1932	if (was_destroyed (op, tag))	1811	if (op->destroyed ())
1933	return 1;	1812	return 1;
1934		1813
1935	/* what the person/creature stepped onto has moved the object	1814	/* what the person/creature stepped onto has moved the object
1936	* someplace new. Don't process any further - if we did,	1815	* someplace new. Don't process any further - if we did,
1937	* have a feeling strange problems would result.	1816	* have a feeling strange problems would result.
1938	*/	1817	*/
1939	if (op->map != m || op->x != x || op->y != y) return 0;	1818	if (op->map != m || op->x != x || op->y != y)
		1819	return 0;
1940	}	1820	}
1941	}	1821	}
		1822
1942	return 0;	1823	return 0;
1943	}	1824	}
1944		1825
1945	/*	1826	/*
1946	* present_arch(arch, map, x, y) searches for any objects with	1827	* present_arch(arch, map, x, y) searches for any objects with
1947	* a matching archetype at the given map and coordinates.	1828	* a matching archetype at the given map and coordinates.
1948	* The first matching object is returned, or NULL if none.	1829	* The first matching object is returned, or NULL if none.
1949	*/	1830	*/
1950		1831	object *
1951	object *present_arch(const archetype *at, mapstruct *m, int x, int y) {	1832	present_arch (const archetype *at, maptile *m, int x, int y)
1952	object *tmp;	1833	{
1953	if(m==NULL || out_of_map(m,x,y)) {	1834	if (!m || out_of_map (m, x, y))
		1835	{
1954	LOG(llevError,"Present_arch called outside map.\n");	1836	LOG (llevError, "Present_arch called outside map.\n");
1955	return NULL;	1837	return NULL;
1956	}	1838	}
1957	for(tmp=GET_MAP_OB(m,x,y); tmp != NULL; tmp = tmp->above)	1839
		1840	for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)
1958	if(tmp->arch == at)	1841	if (tmp->arch == at)
1959	return tmp;	1842	return tmp;
		1843
1960	return NULL;	1844	return NULL;
1961	}	1845	}
1962		1846
1963	/*	1847	/*
1964	* present(type, map, x, y) searches for any objects with	1848	* present(type, map, x, y) searches for any objects with
1965	* a matching type variable at the given map and coordinates.	1849	* a matching type variable at the given map and coordinates.
1966	* The first matching object is returned, or NULL if none.	1850	* The first matching object is returned, or NULL if none.
1967	*/	1851	*/
1968		1852	object *
1969	object *present(unsigned char type,mapstruct *m, int x,int y) {	1853	present (unsigned char type, maptile *m, int x, int y)
1970	object *tmp;	1854	{
1971	if(out_of_map(m,x,y)) {	1855	if (out_of_map (m, x, y))
		1856	{
1972	LOG(llevError,"Present called outside map.\n");	1857	LOG (llevError, "Present called outside map.\n");
1973	return NULL;	1858	return NULL;
1974	}	1859	}
1975	for(tmp=GET_MAP_OB(m,x,y);tmp!=NULL;tmp=tmp->above)	1860
		1861	for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)
1976	if(tmp->type==type)	1862	if (tmp->type == type)
1977	return tmp;	1863	return tmp;
		1864
1978	return NULL;	1865	return NULL;
1979	}	1866	}
1980		1867
1981	/*	1868	/*
1982	* present_in_ob(type, object) searches for any objects with	1869	* present_in_ob(type, object) searches for any objects with
1983	* a matching type variable in the inventory of the given object.	1870	* a matching type variable in the inventory of the given object.
1984	* The first matching object is returned, or NULL if none.	1871	* The first matching object is returned, or NULL if none.
1985	*/	1872	*/
1986		1873	object *
1987	object *present_in_ob(unsigned char type, const object *op) {	1874	present_in_ob (unsigned char type, const object *op)
1988	object *tmp;	1875	{
1989	for(tmp=op->inv;tmp!=NULL;tmp=tmp->below)	1876	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
1990	if(tmp->type==type)	1877	if (tmp->type == type)
1991	return tmp;	1878	return tmp;
		1879
1992	return NULL;	1880	return NULL;
1993	}	1881	}
1994		1882
1995	/*	1883	/*
1996	* present_in_ob (type, str, object) searches for any objects with	1884	* present_in_ob (type, str, object) searches for any objects with
…		…
2004	* str is the string to match against. Note that we match against	1892	* str is the string to match against. Note that we match against
2005	* the object name, not the archetype name. this is so that the	1893	* the object name, not the archetype name. this is so that the
2006	* spell code can use one object type (force), but change it's name	1894	* spell code can use one object type (force), but change it's name
2007	* to be unique.	1895	* to be unique.
2008	*/	1896	*/
2009		1897	object *
2010	object *present_in_ob_by_name(int type, const char *str, const object *op) {	1898	present_in_ob_by_name (int type, const char *str, const object *op)
2011	object *tmp;	1899	{
2012
2013	for(tmp=op->inv; tmp!=NULL; tmp=tmp->below) {	1900	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2014	if ((type==-1 || tmp->type==type) && (!strcmp(str, tmp->name)))	1901	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))
2015	return tmp;	1902	return tmp;
2016	}	1903
2017	return NULL;	1904	return 0;
2018	}	1905	}
2019		1906
2020	/*	1907	/*
2021	* present_arch_in_ob(archetype, object) searches for any objects with	1908	* present_arch_in_ob(archetype, object) searches for any objects with
2022	* a matching archetype in the inventory of the given object.	1909	* a matching archetype in the inventory of the given object.
2023	* The first matching object is returned, or NULL if none.	1910	* The first matching object is returned, or NULL if none.
2024	*/	1911	*/
2025		1912	object *
2026	object *present_arch_in_ob(const archetype *at, const object *op) {	1913	present_arch_in_ob (const archetype *at, const object *op)
2027	object *tmp;	1914	{
2028	for(tmp=op->inv;tmp!=NULL;tmp=tmp->below)	1915	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
2029	if( tmp->arch == at)	1916	if (tmp->arch == at)
2030	return tmp;	1917	return tmp;
		1918
2031	return NULL;	1919	return NULL;
2032	}	1920	}
2033		1921
2034	/*	1922	/*
2035	* activate recursively a flag on an object inventory	1923	* activate recursively a flag on an object inventory
2036	*/	1924	*/
		1925	void
2037	void flag_inv(object*op, int flag){	1926	flag_inv (object *op, int flag)
2038	object *tmp;	1927	{
2039	if(op->inv)	1928	if (op->inv)
2040	for(tmp = op->inv; tmp != NULL; tmp = tmp->below){	1929	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
		1930	{
2041	SET_FLAG(tmp, flag);	1931	SET_FLAG (tmp, flag);
2042	flag_inv(tmp,flag);	1932	flag_inv (tmp, flag);
2043	}	1933	}
		1934	}
		1935
2044	}/*	1936	/*
2045	* desactivate recursively a flag on an object inventory	1937	* deactivate recursively a flag on an object inventory
2046	*/	1938	*/
		1939	void
2047	void unflag_inv(object*op, int flag){	1940	unflag_inv (object *op, int flag)
2048	object *tmp;	1941	{
2049	if(op->inv)	1942	if (op->inv)
2050	for(tmp = op->inv; tmp != NULL; tmp = tmp->below){	1943	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
		1944	{
2051	CLEAR_FLAG(tmp, flag);	1945	CLEAR_FLAG (tmp, flag);
2052	unflag_inv(tmp,flag);	1946	unflag_inv (tmp, flag);
2053	}	1947	}
2054	}	1948	}
2055		1949
2056	/*	1950	/*
2057	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in	1951	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in
2058	* all it's inventory (recursively).	1952	* all it's inventory (recursively).
2059	* If checksums are used, a player will get set_cheat called for	1953	* If checksums are used, a player will get set_cheat called for
2060	* him/her-self and all object carried by a call to this function.	1954	* him/her-self and all object carried by a call to this function.
2061	*/	1955	*/
2062		1956	void
2063	void set_cheat(object *op) {	1957	set_cheat (object *op)
		1958	{
2064	SET_FLAG(op, FLAG_WAS_WIZ);	1959	SET_FLAG (op, FLAG_WAS_WIZ);
2065	flag_inv(op, FLAG_WAS_WIZ);	1960	flag_inv (op, FLAG_WAS_WIZ);
2066	}	1961	}
2067		1962
2068	/*	1963	/*
2069	* find_free_spot(object, map, x, y, start, stop) will search for	1964	* find_free_spot(object, map, x, y, start, stop) will search for
2070	* a spot at the given map and coordinates which will be able to contain	1965	* a spot at the given map and coordinates which will be able to contain
…		…
2084	* because arch_blocked (now ob_blocked) needs to know the movement type	1979	* because arch_blocked (now ob_blocked) needs to know the movement type
2085	* to know if the space in question will block the object. We can't use	1980	* to know if the space in question will block the object. We can't use
2086	* the archetype because that isn't correct if the monster has been	1981	* the archetype because that isn't correct if the monster has been
2087	* customized, changed states, etc.	1982	* customized, changed states, etc.
2088	*/	1983	*/
2089		1984	int
2090	int find_free_spot(const object *ob, mapstruct *m,int x,int y,int start,int stop) {	1985	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)
		1986	{
2091	int i,index=0, flag;	1987	int index = 0, flag;
2092	static int altern[SIZEOFFREE];	1988	int altern[SIZEOFFREE];
2093		1989
2094	for(i=start;i<stop;i++) {	1990	for (int i = start; i < stop; i++)
		1991	{
2095	flag = ob_blocked(ob,m,x+freearr_x[i],y+freearr_y[i]);	1992	flag = ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]);
2096	if(!flag)	1993	if (!flag)
2097	altern[index++]=i;	1994	altern [index++] = i;
2098		1995
2099	/* Basically, if we find a wall on a space, we cut down the search size.	1996	/* Basically, if we find a wall on a space, we cut down the search size.
2100	* In this way, we won't return spaces that are on another side of a wall.	1997	* In this way, we won't return spaces that are on another side of a wall.
2101	* This mostly work, but it cuts down the search size in all directions -	1998	* This mostly work, but it cuts down the search size in all directions -
2102	* if the space being examined only has a wall to the north and empty	1999	* if the space being examined only has a wall to the north and empty
2103	* spaces in all the other directions, this will reduce the search space	2000	* spaces in all the other directions, this will reduce the search space
2104	* to only the spaces immediately surrounding the target area, and	2001	* to only the spaces immediately surrounding the target area, and
2105	* won't look 2 spaces south of the target space.	2002	* won't look 2 spaces south of the target space.
2106	*/	2003	*/
2107	else if ((flag & AB_NO_PASS) && maxfree[i]<stop)	2004	else if ((flag & P_NO_PASS) && maxfree[i] < stop)
2108	stop=maxfree[i];	2005	stop = maxfree[i];
2109	}	2006	}
2110	if(!index) return -1;
2111	return altern[RANDOM()%index];
2112	}
2113		2007
		2008	if (!index)
		2009	return -1;
		2010
		2011	return altern [rndm (index)];
		2012	}
		2013
2114	/*	2014	/*
2115	* find_first_free_spot(archetype, mapstruct, x, y) works like	2015	* find_first_free_spot(archetype, maptile, x, y) works like
2116	* find_free_spot(), but it will search max number of squares.	2016	* find_free_spot(), but it will search max number of squares.
2117	* But it will return the first available spot, not a random choice.	2017	* But it will return the first available spot, not a random choice.
2118	* Changed 0.93.2: Have it return -1 if there is no free spot available.	2018	* Changed 0.93.2: Have it return -1 if there is no free spot available.
2119	*/	2019	*/
2120		2020	int
2121	int find_first_free_spot(const object *ob, mapstruct *m,int x,int y) {	2021	find_first_free_spot (const object *ob, maptile *m, int x, int y)
2122	int i;	2022	{
2123	for(i=0;i<SIZEOFFREE;i++) {	2023	for (int i = 0; i < SIZEOFFREE; i++)
2124	if(!ob_blocked(ob,m,x+freearr_x[i],y+freearr_y[i]))	2024	if (!ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]))
2125	return i;	2025	return i;
2126	}	2026
2127	return -1;	2027	return -1;
2128	}	2028	}
2129		2029
2130	/*	2030	/*
2131	* The function permute(arr, begin, end) randomly reorders the array	2031	* The function permute(arr, begin, end) randomly reorders the array
2132	* arr[begin..end-1].	2032	* arr[begin..end-1].
		2033	* now uses a fisher-yates shuffle, old permute was broken
2133	*/	2034	*/
		2035	static void
2134	static void permute(int *arr, int begin, int end)	2036	permute (int *arr, int begin, int end)
2135	{	2037	{
2136	int i, j, tmp, len;	2038	arr += begin;
		2039	end -= begin;
2137		2040
2138	len = end-begin;	2041	while (--end)
2139	for(i = begin; i < end; i++)	2042	swap (arr [end], arr [rndm (end + 1)]);
2140	{
2141	j = begin+RANDOM()%len;
2142
2143	tmp = arr[i];
2144	arr[i] = arr[j];
2145	arr[j] = tmp;
2146	}
2147	}	2043	}
2148		2044
2149	/* new function to make monster searching more efficient, and effective!	2045	/* new function to make monster searching more efficient, and effective!
2150	* This basically returns a randomized array (in the passed pointer) of	2046	* This basically returns a randomized array (in the passed pointer) of
2151	* the spaces to find monsters. In this way, it won't always look for	2047	* the spaces to find monsters. In this way, it won't always look for
2152	* monsters to the north first. However, the size of the array passed	2048	* monsters to the north first. However, the size of the array passed
2153	* covers all the spaces, so within that size, all the spaces within	2049	* covers all the spaces, so within that size, all the spaces within
2154	* the 3x3 area will be searched, just not in a predictable order.	2050	* the 3x3 area will be searched, just not in a predictable order.
2155	*/	2051	*/
		2052	void
2156	void get_search_arr(int *search_arr)	2053	get_search_arr (int *search_arr)
2157	{	2054	{
2158	int i;	2055	int i;
2159		2056
2160	for(i = 0; i < SIZEOFFREE; i++)	2057	for (i = 0; i < SIZEOFFREE; i++)
2161	{
2162	search_arr[i] = i;	2058	search_arr[i] = i;
2163	}
2164		2059
2165	permute(search_arr, 1, SIZEOFFREE1+1);	2060	permute (search_arr, 1, SIZEOFFREE1 + 1);
2166	permute(search_arr, SIZEOFFREE1+1, SIZEOFFREE2+1);	2061	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);
2167	permute(search_arr, SIZEOFFREE2+1, SIZEOFFREE);	2062	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);
2168	}	2063	}
2169		2064
2170	/*	2065	/*
2171	* find_dir(map, x, y, exclude) will search some close squares in the	2066	* find_dir(map, x, y, exclude) will search some close squares in the
2172	* given map at the given coordinates for live objects.	2067	* given map at the given coordinates for live objects.
…		…
2177	* Perhaps incorrectly, but I'm making the assumption that exclude	2072	* Perhaps incorrectly, but I'm making the assumption that exclude
2178	* is actually want is going to try and move there. We need this info	2073	* is actually want is going to try and move there. We need this info
2179	* because we have to know what movement the thing looking to move	2074	* because we have to know what movement the thing looking to move
2180	* there is capable of.	2075	* there is capable of.
2181	*/	2076	*/
2182		2077	int
2183	int find_dir(mapstruct *m, int x, int y, object *exclude) {	2078	find_dir (maptile *m, int x, int y, object *exclude)
		2079	{
2184	int i,max=SIZEOFFREE, mflags;	2080	int i, max = SIZEOFFREE, mflags;
		2081
2185	sint16 nx, ny;	2082	sint16 nx, ny;
2186	object *tmp;	2083	object *tmp;
2187	mapstruct *mp;	2084	maptile *mp;
		2085
2188	MoveType blocked, move_type;	2086	MoveType blocked, move_type;
2189		2087
2190	if (exclude && exclude->head) {	2088	if (exclude && exclude->head)
		2089	{
2191	exclude = exclude->head;	2090	exclude = exclude->head;
2192	move_type = exclude->move_type;	2091	move_type = exclude->move_type;
2193	} else {	2092	}
		2093	else
		2094	{
2194	/* If we don't have anything, presume it can use all movement types. */	2095	/* If we don't have anything, presume it can use all movement types. */
2195	move_type=MOVE_ALL;	2096	move_type = MOVE_ALL;
		2097	}
		2098
		2099	for (i = 1; i < max; i++)
2196	}	2100	{
2197
2198	for(i=1;i<max;i++) {
2199	mp = m;	2101	mp = m;
2200	nx = x + freearr_x[i];	2102	nx = x + freearr_x[i];
2201	ny = y + freearr_y[i];	2103	ny = y + freearr_y[i];
2202		2104
2203	mflags = get_map_flags(m, &mp, nx, ny, &nx, &ny);	2105	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);
		2106
2204	if (mflags & P_OUT_OF_MAP) {	2107	if (mflags & P_OUT_OF_MAP)
		2108	max = maxfree[i];
		2109	else
		2110	{
		2111	mapspace &ms = mp->at (nx, ny);
		2112
		2113	blocked = ms.move_block;
		2114
		2115	if ((move_type & blocked) == move_type)
2205	max = maxfree[i];	2116	max = maxfree[i];
2206	} else {
2207	blocked = GET_MAP_MOVE_BLOCK(mp, nx, ny);
2208
2209	if ((move_type & blocked) == move_type) {
2210	max=maxfree[i];
2211	} else if (mflags & P_IS_ALIVE) {	2117	else if (mflags & P_IS_ALIVE)
2212	for (tmp=GET_MAP_OB(mp,nx,ny); tmp!= NULL; tmp=tmp->above) {	2118	{
		2119	for (tmp = ms.bot; tmp; tmp = tmp->above)
2213	if ((QUERY_FLAG(tmp,FLAG_MONSTER) || tmp->type==PLAYER) &&	2120	if ((tmp->flag [FLAG_MONSTER] || tmp->type == PLAYER)
2214	(tmp != exclude ||(tmp->head && tmp->head != exclude))) {	2121	&& (tmp != exclude || (tmp->head && tmp->head != exclude)))
2215	break;	2122	break;
2216	}	2123
2217	}
2218	if(tmp) {	2124	if (tmp)
2219	return freedir[i];	2125	return freedir[i];
2220	}
2221	}	2126	}
2222	}	2127	}
2223	}	2128	}
		2129
2224	return 0;	2130	return 0;
2225	}	2131	}
2226		2132
2227	/*	2133	/*
2228	* distance(object 1, object 2) will return the square of the	2134	* distance(object 1, object 2) will return the square of the
2229	* distance between the two given objects.	2135	* distance between the two given objects.
2230	*/	2136	*/
2231		2137	int
2232	int distance(const object *ob1, const object *ob2) {	2138	distance (const object *ob1, const object *ob2)
2233	int i;	2139	{
2234	i= (ob1->x - ob2->x)*(ob1->x - ob2->x)+	2140	return (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);
2235	(ob1->y - ob2->y)*(ob1->y - ob2->y);
2236	return i;
2237	}	2141	}
2238		2142
2239	/*	2143	/*
2240	* find_dir_2(delta-x,delta-y) will return a direction in which	2144	* find_dir_2(delta-x,delta-y) will return a direction in which
2241	* an object which has subtracted the x and y coordinates of another	2145	* an object which has subtracted the x and y coordinates of another
2242	* object, needs to travel toward it.	2146	* object, needs to travel toward it.
2243	*/	2147	*/
2244		2148	int
2245	int find_dir_2(int x, int y) {	2149	find_dir_2 (int x, int y)
		2150	{
2246	int q;	2151	int q;
2247		2152
2248	if(y)	2153	if (y)
2249	q=x*100/y;	2154	q = x * 100 / y;
2250	else if (x)	2155	else if (x)
2251	q= -300*x;	2156	q = -300 * x;
2252	else	2157	else
2253	return 0;	2158	return 0;
2254		2159
2255	if(y>0) {	2160	if (y > 0)
		2161	{
2256	if(q < -242)	2162	if (q < -242)
2257	return 3 ;	2163	return 3;
2258	if (q < -41)	2164	if (q < -41)
2259	return 2 ;	2165	return 2;
2260	if (q < 41)	2166	if (q < 41)
2261	return 1 ;	2167	return 1;
2262	if (q < 242)	2168	if (q < 242)
2263	return 8 ;	2169	return 8;
2264	return 7 ;	2170	return 7;
2265	}	2171	}
2266		2172
2267	if (q < -242)	2173	if (q < -242)
2268	return 7 ;	2174	return 7;
2269	if (q < -41)	2175	if (q < -41)
2270	return 6 ;	2176	return 6;
2271	if (q < 41)	2177	if (q < 41)
2272	return 5 ;	2178	return 5;
2273	if (q < 242)	2179	if (q < 242)
2274	return 4 ;	2180	return 4;
2275		2181
2276	return 3 ;	2182	return 3;
2277	}
2278
2279	/*
2280	* absdir(int): Returns a number between 1 and 8, which represent
2281	* the "absolute" direction of a number (it actually takes care of
2282	* "overflow" in previous calculations of a direction).
2283	*/
2284
2285	int absdir(int d) {
2286	while(d<1) d+=8;
2287	while(d>8) d-=8;
2288	return d;
2289	}	2183	}
2290		2184
2291	/*	2185	/*
2292	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is	2186	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is
2293	* between two directions (which are expected to be absolute (see absdir())	2187	* between two directions (which are expected to be absolute (see absdir())
2294	*/	2188	*/
2295		2189	int
2296	int dirdiff(int dir1, int dir2) {	2190	dirdiff (int dir1, int dir2)
		2191	{
2297	int d;	2192	int d;
		2193
2298	d = abs(dir1 - dir2);	2194	d = abs (dir1 - dir2);
2299	if(d>4)	2195	if (d > 4)
2300	d = 8 - d;	2196	d = 8 - d;
		2197
2301	return d;	2198	return d;
2302	}	2199	}
2303		2200
2304	/* peterm:	2201	/* peterm:
2305	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.	2202	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.
…		…
2308	* This basically means that if direction is 15, then it could either go	2205	* This basically means that if direction is 15, then it could either go
2309	* direction 4, 14, or 16 to get back to where we are.	2206	* direction 4, 14, or 16 to get back to where we are.
2310	* Moved from spell_util.c to object.c with the other related direction	2207	* Moved from spell_util.c to object.c with the other related direction
2311	* functions.	2208	* functions.
2312	*/	2209	*/
2313
2314	int reduction_dir[SIZEOFFREE][3] = {	2210	int reduction_dir[SIZEOFFREE][3] = {
2315	{0,0,0}, /* 0 */	2211	{0, 0, 0}, /* 0 */
2316	{0,0,0}, /* 1 */	2212	{0, 0, 0}, /* 1 */
2317	{0,0,0}, /* 2 */	2213	{0, 0, 0}, /* 2 */
2318	{0,0,0}, /* 3 */	2214	{0, 0, 0}, /* 3 */
2319	{0,0,0}, /* 4 */	2215	{0, 0, 0}, /* 4 */
2320	{0,0,0}, /* 5 */	2216	{0, 0, 0}, /* 5 */
2321	{0,0,0}, /* 6 */	2217	{0, 0, 0}, /* 6 */
2322	{0,0,0}, /* 7 */	2218	{0, 0, 0}, /* 7 */
2323	{0,0,0}, /* 8 */	2219	{0, 0, 0}, /* 8 */
2324	{8,1,2}, /* 9 */	2220	{8, 1, 2}, /* 9 */
2325	{1,2,-1}, /* 10 */	2221	{1, 2, -1}, /* 10 */
2326	{2,10,12}, /* 11 */	2222	{2, 10, 12}, /* 11 */
2327	{2,3,-1}, /* 12 */	2223	{2, 3, -1}, /* 12 */
2328	{2,3,4}, /* 13 */	2224	{2, 3, 4}, /* 13 */
2329	{3,4,-1}, /* 14 */	2225	{3, 4, -1}, /* 14 */
2330	{4,14,16}, /* 15 */	2226	{4, 14, 16}, /* 15 */
2331	{5,4,-1}, /* 16 */	2227	{5, 4, -1}, /* 16 */
2332	{4,5,6}, /* 17 */	2228	{4, 5, 6}, /* 17 */
2333	{6,5,-1}, /* 18 */	2229	{6, 5, -1}, /* 18 */
2334	{6,20,18}, /* 19 */	2230	{6, 20, 18}, /* 19 */
2335	{7,6,-1}, /* 20 */	2231	{7, 6, -1}, /* 20 */
2336	{6,7,8}, /* 21 */	2232	{6, 7, 8}, /* 21 */
2337	{7,8,-1}, /* 22 */	2233	{7, 8, -1}, /* 22 */
2338	{8,22,24}, /* 23 */	2234	{8, 22, 24}, /* 23 */
2339	{8,1,-1}, /* 24 */	2235	{8, 1, -1}, /* 24 */
2340	{24,9,10}, /* 25 */	2236	{24, 9, 10}, /* 25 */
2341	{9,10,-1}, /* 26 */	2237	{9, 10, -1}, /* 26 */
2342	{10,11,-1}, /* 27 */	2238	{10, 11, -1}, /* 27 */
2343	{27,11,29}, /* 28 */	2239	{27, 11, 29}, /* 28 */
2344	{11,12,-1}, /* 29 */	2240	{11, 12, -1}, /* 29 */
2345	{12,13,-1}, /* 30 */	2241	{12, 13, -1}, /* 30 */
2346	{12,13,14}, /* 31 */	2242	{12, 13, 14}, /* 31 */
2347	{13,14,-1}, /* 32 */	2243	{13, 14, -1}, /* 32 */
2348	{14,15,-1}, /* 33 */	2244	{14, 15, -1}, /* 33 */
2349	{33,15,35}, /* 34 */	2245	{33, 15, 35}, /* 34 */
2350	{16,15,-1}, /* 35 */	2246	{16, 15, -1}, /* 35 */
2351	{17,16,-1}, /* 36 */	2247	{17, 16, -1}, /* 36 */
2352	{18,17,16}, /* 37 */	2248	{18, 17, 16}, /* 37 */
2353	{18,17,-1}, /* 38 */	2249	{18, 17, -1}, /* 38 */
2354	{18,19,-1}, /* 39 */	2250	{18, 19, -1}, /* 39 */
2355	{41,19,39}, /* 40 */	2251	{41, 19, 39}, /* 40 */
2356	{19,20,-1}, /* 41 */	2252	{19, 20, -1}, /* 41 */
2357	{20,21,-1}, /* 42 */	2253	{20, 21, -1}, /* 42 */
2358	{20,21,22}, /* 43 */	2254	{20, 21, 22}, /* 43 */
2359	{21,22,-1}, /* 44 */	2255	{21, 22, -1}, /* 44 */
2360	{23,22,-1}, /* 45 */	2256	{23, 22, -1}, /* 45 */
2361	{45,47,23}, /* 46 */	2257	{45, 47, 23}, /* 46 */
2362	{23,24,-1}, /* 47 */	2258	{23, 24, -1}, /* 47 */
2363	{24,9,-1}}; /* 48 */	2259	{24, 9, -1}
		2260	}; /* 48 */
2364		2261
2365	/* Recursive routine to step back and see if we can	2262	/* Recursive routine to step back and see if we can
2366	* find a path to that monster that we found. If not,	2263	* find a path to that monster that we found. If not,
2367	* we don't bother going toward it. Returns 1 if we	2264	* we don't bother going toward it. Returns 1 if we
2368	* can see a direct way to get it	2265	* can see a direct way to get it
2369	* Modified to be map tile aware -.MSW	2266	* Modified to be map tile aware -.MSW
2370	*/	2267	*/
2371		2268	int
2372
2373	int can_see_monsterP(mapstruct *m, int x, int y,int dir) {	2269	can_see_monsterP (maptile *m, int x, int y, int dir)
		2270	{
2374	sint16 dx, dy;	2271	sint16 dx, dy;
2375	int mflags;	2272	int mflags;
2376		2273
		2274	if (dir < 0)
2377	if(dir<0) return 0; /* exit condition: invalid direction */	2275	return 0; /* exit condition: invalid direction */
2378		2276
2379	dx = x + freearr_x[dir];	2277	dx = x + freearr_x[dir];
2380	dy = y + freearr_y[dir];	2278	dy = y + freearr_y[dir];
2381		2279
2382	mflags = get_map_flags(m, &m, dx, dy, &dx, &dy);	2280	mflags = get_map_flags (m, &m, dx, dy, &dx, &dy);
2383		2281
2384	/* This functional arguably was incorrect before - it was	2282	/* This functional arguably was incorrect before - it was
2385	* checking for P_WALL - that was basically seeing if	2283	* checking for P_WALL - that was basically seeing if
2386	* we could move to the monster - this is being more	2284	* we could move to the monster - this is being more
2387	* literal on if we can see it. To know if we can actually	2285	* literal on if we can see it. To know if we can actually
2388	* move to the monster, we'd need the monster passed in or	2286	* move to the monster, we'd need the monster passed in or
2389	* at least its move type.	2287	* at least its move type.
2390	*/	2288	*/
2391	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW)) return 0;	2289	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW))
		2290	return 0;
2392		2291
2393	/* yes, can see. */	2292	/* yes, can see. */
2394	if(dir < 9) return 1;	2293	if (dir < 9)
		2294	return 1;
		2295
2395	return can_see_monsterP(m, x, y, reduction_dir[dir][0]) |	2296	return can_see_monsterP (m, x, y, reduction_dir[dir][0])
2396	can_see_monsterP(m,x,y, reduction_dir[dir][1]) |	2297	| can_see_monsterP (m, x, y, reduction_dir[dir][1])
2397	can_see_monsterP(m,x,y, reduction_dir[dir][2]);	2298	| can_see_monsterP (m, x, y, reduction_dir[dir][2]);
2398	}	2299	}
2399		2300
2400
2401
2402	/*	2301	/*
2403	* can_pick(picker, item): finds out if an object is possible to be	2302	* can_pick(picker, item): finds out if an object is possible to be
2404	* picked up by the picker. Returnes 1 if it can be	2303	* picked up by the picker. Returnes 1 if it can be
2405	* picked up, otherwise 0.	2304	* picked up, otherwise 0.
2406	*	2305	*
…		…
2408	* core dumps if they do.	2307	* core dumps if they do.
2409	*	2308	*
2410	* Add a check so we can't pick up invisible objects (0.93.8)	2309	* Add a check so we can't pick up invisible objects (0.93.8)
2411	*/	2310	*/
2412		2311
		2312	int
2413	int can_pick(const object *who, const object *item) {	2313	can_pick (const object *who, const object *item)
		2314	{
2414	return /*QUERY_FLAG(who,FLAG_WIZ)||*/	2315	return /*QUERY_FLAG(who,FLAG_WIZ)|| */
2415	(item->weight>0&&!QUERY_FLAG(item,FLAG_NO_PICK)&&	2316	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&
2416	!QUERY_FLAG(item,FLAG_ALIVE)&&!item->invisible &&	2317	!QUERY_FLAG (item, FLAG_ALIVE) && !item->invisible && (who->type == PLAYER || item->weight < who->weight / 3));
2417	(who->type==PLAYER||item->weight<who->weight/3));
2418	}	2318	}
2419
2420		2319
2421	/*	2320	/*
2422	* create clone from object to another	2321	* create clone from object to another
2423	*/	2322	*/
		2323	object *
2424	object *object_create_clone (object *asrc) {	2324	object_create_clone (object *asrc)
		2325	{
2425	object *dst = NULL,*tmp,*src,*part,*prev, *item;	2326	object *dst = 0, *tmp, *src, *part, *prev, *item;
2426		2327
2427	if(!asrc) return NULL;	2328	if (!asrc)
		2329	return 0;
		2330
2428	src = asrc;	2331	src = asrc;
2429	if(src->head)	2332	if (src->head)
2430	src = src->head;	2333	src = src->head;
2431		2334
2432	prev = NULL;	2335	prev = 0;
2433	for(part = src; part; part = part->more) {	2336	for (part = src; part; part = part->more)
2434	tmp = get_object();	2337	{
2435	copy_object(part,tmp);	2338	tmp = part->clone ();
2436	tmp->x -= src->x;	2339	tmp->x -= src->x;
2437	tmp->y -= src->y;	2340	tmp->y -= src->y;
		2341
2438	if(!part->head) {	2342	if (!part->head)
		2343	{
2439	dst = tmp;	2344	dst = tmp;
2440	tmp->head = NULL;	2345	tmp->head = 0;
		2346	}
2441	} else {	2347	else
2442	tmp->head = dst;	2348	tmp->head = dst;
2443	}	2349
2444	tmp->more = NULL;	2350	tmp->more = 0;
		2351
2445	if(prev)	2352	if (prev)
2446	prev->more = tmp;	2353	prev->more = tmp;
		2354
2447	prev = tmp;	2355	prev = tmp;
2448	}	2356	}
2449	/*** copy inventory ***/	2357
2450	for(item = src->inv; item; item = item->below) {	2358	for (item = src->inv; item; item = item->below)
2451	(void) insert_ob_in_ob(object_create_clone(item),dst);	2359	insert_ob_in_ob (object_create_clone (item), dst);
2452	}
2453		2360
2454	return dst;	2361	return dst;
2455	}
2456
2457	/* return true if the object was destroyed, 0 otherwise */
2458	int was_destroyed (const object *op, tag_t old_tag)
2459	{
2460	/* checking for FLAG_FREED isn't necessary, but makes this function more
2461	* robust */
2462	return op->count != old_tag || QUERY_FLAG (op, FLAG_FREED);
2463	}
2464
2465	/* GROS - Creates an object using a string representing its content. */
2466	/* Basically, we save the content of the string to a temp file, then call */
2467	/* load_object on it. I admit it is a highly inefficient way to make things, */
2468	/* but it was simple to make and allows reusing the load_object function. */
2469	/* Remember not to use load_object_str in a time-critical situation. */
2470	/* Also remember that multiparts objects are not supported for now. */
2471
2472	object* load_object_str(const char *obstr)
2473	{
2474	object *op;
2475	char filename[MAX_BUF];
2476	sprintf(filename,"%s/cfloadobstr2044",settings.tmpdir);
2477
2478	FILE *tempfile=fopen(filename,"w");
2479	if (tempfile == NULL)
2480	{
2481	LOG(llevError,"Error - Unable to access load object temp file\n");
2482	return NULL;
2483	};
2484	fprintf(tempfile,obstr);
2485	fclose(tempfile);
2486
2487	op=get_object();
2488
2489	object_thawer thawer (filename);
2490	if (thawer)
2491	load_object(thawer,op,LO_NEWFILE,0);
2492	LOG(llevDebug," load str completed, object=%s\n", &op->name);
2493	CLEAR_FLAG(op,FLAG_REMOVED);
2494
2495	return op;
2496	}	2362	}
2497		2363
2498	/* This returns the first object in who's inventory that	2364	/* This returns the first object in who's inventory that
2499	* has the same type and subtype match.	2365	* has the same type and subtype match.
2500	* returns NULL if no match.	2366	* returns NULL if no match.
2501	*/	2367	*/
		2368	object *
2502	object *find_obj_by_type_subtype(const object *who, int type, int subtype)	2369	find_obj_by_type_subtype (const object *who, int type, int subtype)
2503	{	2370	{
2504	object *tmp;
2505
2506	for (tmp=who->inv; tmp; tmp=tmp->below)	2371	for (object *tmp = who->inv; tmp; tmp = tmp->below)
2507	if (tmp->type == type && tmp->subtype == subtype) return tmp;	2372	if (tmp->type == type && tmp->subtype == subtype)
		2373	return tmp;
2508		2374
2509	return NULL;	2375	return 0;
2510	}	2376	}
2511		2377
2512	/* If ob has a field named key, return the link from the list,	2378	/* If ob has a field named key, return the link from the list,
2513	* otherwise return NULL.	2379	* otherwise return NULL.
2514	*	2380	*
2515	* key must be a passed in shared string - otherwise, this won't	2381	* key must be a passed in shared string - otherwise, this won't
2516	* do the desired thing.	2382	* do the desired thing.
2517	*/	2383	*/
		2384	key_value *
2518	key_value * get_ob_key_link(const object * ob, const char * key) {	2385	get_ob_key_link (const object *ob, const char *key)
2519	key_value * link;	2386	{
2520
2521	for (link = ob->key_values; link != NULL; link = link->next) {	2387	for (key_value *link = ob->key_values; link; link = link->next)
2522	if (link->key == key) {	2388	if (link->key == key)
2523	return link;	2389	return link;
2524	}	2390
2525	}	2391	return 0;
2526		2392	}
2527	return NULL;
2528	}
2529		2393
2530	/*	2394	/*
2531	* Returns the value of op has an extra_field for key, or NULL.	2395	* Returns the value of op has an extra_field for key, or NULL.
2532	*	2396	*
2533	* The argument doesn't need to be a shared string.	2397	* The argument doesn't need to be a shared string.
2534	*	2398	*
2535	* The returned string is shared.	2399	* The returned string is shared.
2536	*/	2400	*/
		2401	const char *
2537	const char * get_ob_key_value(const object * op, const char * const key) {	2402	get_ob_key_value (const object *op, const char *const key)
		2403	{
2538	key_value * link;	2404	key_value *link;
2539	const char * canonical_key;	2405	shstr_cmp canonical_key (key);
		2406
		2407	if (!canonical_key)
2540		2408	{
2541	canonical_key = shstr::find (key);
2542
2543	if (canonical_key == NULL) {
2544	/* 1. There being a field named key on any object	2409	/* 1. There being a field named key on any object
2545	* implies there'd be a shared string to find.	2410	* implies there'd be a shared string to find.
2546	* 2. Since there isn't, no object has this field.	2411	* 2. Since there isn't, no object has this field.
2547	* 3. Therefore, *this* object doesn't have this field.	2412	* 3. Therefore, *this* object doesn't have this field.
2548	*/	2413	*/
2549	return NULL;	2414	return 0;
2550	}	2415	}
2551		2416
2552	/* This is copied from get_ob_key_link() above -	2417	/* This is copied from get_ob_key_link() above -
2553	* only 4 lines, and saves the function call overhead.	2418	* only 4 lines, and saves the function call overhead.
2554	*/	2419	*/
2555	for (link = op->key_values; link != NULL; link = link->next) {	2420	for (link = op->key_values; link; link = link->next)
2556	if (link->key == canonical_key) {	2421	if (link->key == canonical_key)
2557	return link->value;	2422	return link->value;
2558	}
2559	}
2560	return NULL;
2561	}
2562		2423
		2424	return 0;
		2425	}
2563		2426
2564	/*	2427	/*
2565	* Updates the canonical_key in op to value.	2428	* Updates the canonical_key in op to value.
2566	*	2429	*
2567	* canonical_key is a shared string (value doesn't have to be).	2430	* canonical_key is a shared string (value doesn't have to be).
…		…
2569	* Unless add_key is TRUE, it won't add fields, only change the value of existing	2432	* Unless add_key is TRUE, it won't add fields, only change the value of existing
2570	* keys.	2433	* keys.
2571	*	2434	*
2572	* Returns TRUE on success.	2435	* Returns TRUE on success.
2573	*/	2436	*/
		2437	int
2574	int set_ob_key_value_s(object * op, const shstr &canonical_key, const char * value, int add_key) {	2438	set_ob_key_value_s (object *op, const shstr & canonical_key, const char *value, int add_key)
		2439	{
2575	key_value * field = NULL, *last=NULL;	2440	key_value *field = NULL, *last = NULL;
2576		2441
2577	for (field=op->key_values; field != NULL; field=field->next) {	2442	for (field = op->key_values; field != NULL; field = field->next)
		2443	{
2578	if (field->key != canonical_key) {	2444	if (field->key != canonical_key)
		2445	{
2579	last = field;	2446	last = field;
2580	continue;	2447	continue;
2581	}	2448	}
2582		2449
2583	if (value)	2450	if (value)
2584	field->value = value;	2451	field->value = value;
2585	else {	2452	else
		2453	{
2586	/* Basically, if the archetype has this key set,	2454	/* Basically, if the archetype has this key set,
2587	* we need to store the null value so when we save	2455	* we need to store the null value so when we save
2588	* it, we save the empty value so that when we load,	2456	* it, we save the empty value so that when we load,
2589	* we get this value back again.	2457	* we get this value back again.
2590	*/	2458	*/
2591	if (get_ob_key_link (&op->arch->clone, canonical_key))	2459	if (get_ob_key_link (&op->arch->clone, canonical_key))
2592	field->value = 0;	2460	field->value = 0;
		2461	else
		2462	{
		2463	if (last)
		2464	last->next = field->next;
2593	else	2465	else
2594	{
2595	if (last) last->next = field->next;
2596	else op->key_values = field->next;	2466	op->key_values = field->next;
2597		2467
2598	delete field;	2468	delete field;
2599	}	2469	}
2600	}	2470	}
2601	return TRUE;	2471	return TRUE;
2602	}	2472	}
2603	/* IF we get here, key doesn't exist */	2473	/* IF we get here, key doesn't exist */
2604		2474
2605	/* No field, we'll have to add it. */	2475	/* No field, we'll have to add it. */
2606		2476
2607	if (!add_key) {	2477	if (!add_key)
2608	return FALSE;	2478	return FALSE;
2609	}	2479
2610	/* There isn't any good reason to store a null	2480	/* There isn't any good reason to store a null
2611	* value in the key/value list. If the archetype has	2481	* value in the key/value list. If the archetype has
2612	* this key, then we should also have it, so shouldn't	2482	* this key, then we should also have it, so shouldn't
2613	* be here. If user wants to store empty strings,	2483	* be here. If user wants to store empty strings,
2614	* should pass in ""	2484	* should pass in ""
2615	*/	2485	*/
2616	if (value == NULL) return TRUE;	2486	if (value == NULL)
2617
2618	field = new key_value;
2619
2620	field->key = canonical_key;
2621	field->value = value;
2622	/* Usual prepend-addition. */
2623	field->next = op->key_values;
2624	op->key_values = field;
2625
2626	return TRUE;	2487	return TRUE;
		2488
		2489	field = new key_value;
		2490
		2491	field->key = canonical_key;
		2492	field->value = value;
		2493	/* Usual prepend-addition. */
		2494	field->next = op->key_values;
		2495	op->key_values = field;
		2496
		2497	return TRUE;
2627	}	2498	}
2628		2499
2629	/*	2500	/*
2630	* Updates the key in op to value.	2501	* Updates the key in op to value.
2631	*	2502	*
…		…
2633	* and not add new ones.	2504	* and not add new ones.
2634	* In general, should be little reason FALSE is ever passed in for add_key	2505	* In general, should be little reason FALSE is ever passed in for add_key
2635	*	2506	*
2636	* Returns TRUE on success.	2507	* Returns TRUE on success.
2637	*/	2508	*/
		2509	int
2638	int set_ob_key_value(object * op, const char *key, const char * value, int add_key)	2510	set_ob_key_value (object *op, const char *key, const char *value, int add_key)
2639	{	2511	{
2640	shstr key_ (key);	2512	shstr key_ (key);
		2513
2641	return set_ob_key_value_s (op, key_, value, add_key);	2514	return set_ob_key_value_s (op, key_, value, add_key);
2642	}	2515	}
		2516
		2517	object::depth_iterator::depth_iterator (object *container)
		2518	: iterator_base (container)
		2519	{
		2520	while (item->inv)
		2521	item = item->inv;
		2522	}
		2523
		2524	void
		2525	object::depth_iterator::next ()
		2526	{
		2527	if (item->below)
		2528	{
		2529	item = item->below;
		2530
		2531	while (item->inv)
		2532	item = item->inv;
		2533	}
		2534	else
		2535	item = item->env;
		2536	}
		2537
		2538
		2539	const char *
		2540	object::flag_desc (char *desc, int len) const
		2541	{
		2542	char *p = desc;
		2543	bool first = true;
		2544
		2545	*p = 0;
		2546
		2547	for (int i = 0; i < NUM_FLAGS; i++)
		2548	{
		2549	if (len <= 10) // magic constant!
		2550	{
		2551	snprintf (p, len, ",...");
		2552	break;
		2553	}
		2554
		2555	if (flag [i])
		2556	{
		2557	int cnt = snprintf (p, len, "%s%d", first ? "" : ",", i);
		2558	len -= cnt;
		2559	p += cnt;
		2560	first = false;
		2561	}
		2562	}
		2563
		2564	return desc;
		2565	}
		2566
		2567	// return a suitable string describing an object in enough detail to find it
		2568	const char *
		2569	object::debug_desc (char *info) const
		2570	{
		2571	char flagdesc[512];
		2572	char info2[256 * 4];
		2573	char *p = info;
		2574
		2575	p += snprintf (p, 512, "{cnt:%d,uuid:<1.%" PRIx64 ">,name:\"%s\"%s%s,flags:[%s],type:%d}",
		2576	count, uuid.seq,
		2577	&name,
		2578	title ? "\",title:\"" : "",
		2579	title ? (const char *)title : "",
		2580	flag_desc (flagdesc, 512), type);
		2581
		2582	if (env)
		2583	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));
		2584
		2585	if (map)
		2586	p += snprintf (p, 256, "(on %s@%d+%d)", &map->path, x, y);
		2587
		2588	return info;
		2589	}
		2590
		2591	const char *
		2592	object::debug_desc () const
		2593	{
		2594	static char info[256 * 4];
		2595	return debug_desc (info);
		2596	}
		2597
		2598	const char *
		2599	object::debug_desc2 () const
		2600	{
		2601	static char info[256 * 4];
		2602	return debug_desc (info);
		2603	}
		2604
		2605	struct region *
		2606	object::region () const
		2607	{
		2608	return map ? map->region (x, y)
		2609	: region::default_region ();
		2610	}
		2611
		2612	const materialtype_t *
		2613	object::dominant_material () const
		2614	{
		2615	if (materialtype_t *mat = name_to_material (materialname))
		2616	return mat;
		2617
		2618	// omfg this is slow, this has to be temporary :)
		2619	shstr unknown ("unknown");
		2620
		2621	return name_to_material (unknown);
		2622	}
		2623
		2624	void
		2625	object::open_container (object *new_container)
		2626	{
		2627	if (container == new_container)
		2628	return;
		2629
		2630	if (object *old_container = container)
		2631	{
		2632	if (INVOKE_OBJECT (CLOSE, old_container, ARG_OBJECT (this)))
		2633	return;
		2634
		2635	#if 0
		2636	// remove the "Close old_container" object.
		2637	if (object *closer = old_container->inv)
		2638	if (closer->type == CLOSE_CON)
		2639	closer->destroy ();
		2640	#endif
		2641
		2642	old_container->flag [FLAG_APPLIED] = 0;
		2643	container = 0;
		2644
		2645	esrv_update_item (UPD_FLAGS, this, old_container);
		2646	new_draw_info_format (NDI_UNIQUE, 0, this, "You close %s.", query_name (old_container));
		2647	}
		2648
		2649	if (new_container)
		2650	{
		2651	if (INVOKE_OBJECT (OPEN, new_container, ARG_OBJECT (this)))
		2652	return;
		2653
		2654	// TODO: this does not seem to serve any purpose anymore?
		2655	#if 0
		2656	// insert the "Close Container" object.
		2657	if (archetype *closer = new_container->other_arch)
		2658	{
		2659	object *closer = arch_to_object (new_container->other_arch);
		2660	closer->flag [FLAG_NO_MAP_SAVE] = 1;
		2661	new_container->insert (closer);
		2662	}
		2663	#endif
		2664
		2665	new_draw_info_format (NDI_UNIQUE, 0, this, "You open %s.", query_name (new_container));
		2666
		2667	new_container->flag [FLAG_APPLIED] = 1;
		2668	container = new_container;
		2669
		2670	esrv_update_item (UPD_FLAGS, this, new_container);
		2671	esrv_send_inventory (this, new_container);
		2672	}
		2673	}
		2674
		2675

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