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Comparing deliantra/server/common/object.C (file contents):
Revision 1.11 by root, Sun Sep 3 00:18:40 2006 UTC vs.
Revision 1.109 by root, Sun Jan 7 21:54:59 2007 UTC

1	/*
2	* static char *rcsid_object_c =
3	* "$Id: object.C,v 1.11 2006/09/03 00:18:40 root Exp $";
4	*/
5
6	/*	1	/*
7	CrossFire, A Multiplayer game for X-windows	2	CrossFire, A Multiplayer game for X-windows
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
…		…
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;
234	}	316	}
235		317
236	/*	318	/*
237	* sum_weight() is a recursive function which calculates the weight	319	* sum_weight() is a recursive function which calculates the weight
238	* an object is carrying. It goes through in figures out how much	320	* an object is carrying. It goes through in figures out how much
239	* containers are carrying, and sums it up.	321	* containers are carrying, and sums it up.
240	*/	322	*/
241	signed long sum_weight(object *op) {	323	long
		324	sum_weight (object *op)
		325	{
242	signed long sum;	326	long sum;
243	object *inv;	327	object *inv;
		328
244	for(sum = 0, inv = op->inv; inv != NULL; inv = inv->below) {	329	for (sum = 0, inv = op->inv; inv != NULL; inv = inv->below)
		330	{
245	if (inv->inv)	331	if (inv->inv)
246	sum_weight(inv);	332	sum_weight (inv);
247	sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1);	333	sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1);
248	}	334	}
		335
249	if (op->type == CONTAINER && op->stats.Str)	336	if (op->type == CONTAINER && op->stats.Str)
250	sum = (sum * (100 - op->stats.Str))/100;	337	sum = (sum * (100 - op->stats.Str)) / 100;
		338
251	if(op->carrying != sum)	339	if (op->carrying != sum)
252	op->carrying = sum;	340	op->carrying = sum;
		341
253	return sum;	342	return sum;
254	}	343	}
255		344
256	/**	345	/**
257	* Return the outermost environment object for a given object.	346	* Return the outermost environment object for a given object.
258	*/	347	*/
259		348
		349	object *
260	object *object_get_env_recursive (object *op) {	350	object_get_env_recursive (object *op)
		351	{
261	while (op->env != NULL)	352	while (op->env != NULL)
262	op = op->env;	353	op = op->env;
263	return op;	354	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	}	355	}
278		356
279	/*	357	/*
280	* Used by: Crossedit: dump. Server DM commands: dumpbelow, dump.	358	* Used by: Crossedit: dump. Server DM commands: dumpbelow, dump.
281	* Some error messages.	359	* Some error messages.
282	* The result of the dump is stored in the static global errmsg array.	360	* The result of the dump is stored in the static global errmsg array.
283	*/	361	*/
284		362
285	void dump_object2(object *op) {	363	char *
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) {	364	dump_object (object *op)
332	if(op==NULL) {	365	{
333	strcpy(errmsg,"[NULL pointer]");	366	if (!op)
334	return;	367	return strdup ("[NULLOBJ]");
335	}
336	errmsg[0]='\0';
337	dump_object2(op);
338	}
339		368
340	void dump_all_objects(void) {	369	object_freezer freezer;
341	object *op;	370	save_object (freezer, op, 1);
342	for(op=objects;op!=NULL;op=op->next) {	371	return freezer.as_string ();
343	dump_object(op);
344	fprintf(logfile, "Object %d\n:%s\n", op->count, errmsg);
345	}
346	}	372	}
347		373
348	/*	374	/*
349	* get_nearest_part(multi-object, object 2) returns the part of the	375	* get_nearest_part(multi-object, object 2) returns the part of the
350	* multi-object 1 which is closest to the second object.	376	* multi-object 1 which is closest to the second object.
351	* If it's not a multi-object, it is returned.	377	* If it's not a multi-object, it is returned.
352	*/	378	*/
353		379
		380	object *
354	object *get_nearest_part(object *op, const object *pl) {	381	get_nearest_part (object *op, const object *pl)
		382	{
355	object *tmp,*closest;	383	object *tmp, *closest;
356	int last_dist,i;	384	int last_dist, i;
		385
357	if(op->more==NULL)	386	if (op->more == NULL)
358	return op;	387	return op;
359	for(last_dist=distance(op,pl),closest=op,tmp=op->more;tmp!=NULL;tmp=tmp->more)	388	for (last_dist = distance (op, pl), closest = op, tmp = op->more; tmp != NULL; tmp = tmp->more)
360	if((i=distance(tmp,pl))<last_dist)	389	if ((i = distance (tmp, pl)) < last_dist)
361	closest=tmp,last_dist=i;	390	closest = tmp, last_dist = i;
362	return closest;	391	return closest;
363	}	392	}
364		393
365	/*	394	/*
366	* Returns the object which has the count-variable equal to the argument.	395	* Returns the object which has the count-variable equal to the argument.
367	*/	396	*/
368		397	object *
369	object *find_object(tag_t i) {	398	find_object (tag_t i)
370	object *op;	399	{
371	for(op=objects;op!=NULL;op=op->next)	400	return ((unsigned int)i) < objects.size ()
372	if(op->count==i)	401	? objects [i]
373	break;	402	: 0;
374	return op;
375	}	403	}
376		404
377	/*	405	/*
378	* Returns the first object which has a name equal to the argument.	406	* Returns the first object which has a name equal to the argument.
379	* Used only by the patch command, but not all that useful.	407	* Used only by the patch command, but not all that useful.
380	* Enables features like "patch <name-of-other-player> food 999"	408	* Enables features like "patch <name-of-other-player> food 999"
381	*/	409	*/
382		410	object *
383	object *find_object_name(const char *str) {	411	find_object_name (const char *str)
384	const char *name = shstr::find (str);	412	{
		413	shstr_cmp str_ (str);
385	object *op;	414	object *op;
386	for(op=objects;op!=NULL;op=op->next)	415
		416	for_all_objects (op)
387	if(&op->name == name)	417	if (op->name == str_)
388	break;	418	break;
389		419
390	return op;	420	return op;
391	}	421	}
392		422
		423	void
393	void free_all_object_data(void) {	424	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	{	425	{
435	if (!op) return;	426	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	}	427	}
443
444
445		428
446	/*	429	/*
447	* Sets the owner and sets the skill and exp pointers to owner's current	430	* Sets the owner and sets the skill and exp pointers to owner's current
448	* skill and experience objects.	431	* skill and experience objects.
449	*/	432	*/
450	void set_owner (object *op, object *owner)	433	void
		434	object::set_owner (object *owner)
451	{	435	{
452	if(owner==NULL||op==NULL)	436	if (!owner)
453	return;	437	return;
454		438
455	/* next line added to allow objects which own objects */	439	/* next line added to allow objects which own objects */
456	/* Add a check for ownercounts in here, as I got into an endless loop	440	/* 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	441	* with the fireball owning a poison cloud which then owned the
458	* fireball. I believe that was caused by one of the objects getting	442	* fireball. I believe that was caused by one of the objects getting
459	* freed and then another object replacing it. Since the ownercounts	443	* 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.	444	* didn't match, this check is valid and I believe that cause is valid.
461	*/	445	*/
462	while (owner->owner && owner!=owner->owner &&	446	while (owner->owner)
463	owner->ownercount==owner->owner->count) owner=owner->owner;	447	owner = owner->owner;
464		448
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;	449	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	}	450	}
518		451
519	/* Zero the key_values on op, decrementing the shared-string	452	/* Zero the key_values on op, decrementing the shared-string
520	* refcounts and freeing the links.	453	* refcounts and freeing the links.
521	*/	454	*/
		455	static void
522	static void free_key_values(object * op)	456	free_key_values (object *op)
523	{	457	{
524	for (key_value *i = op->key_values; i != 0; )	458	for (key_value *i = op->key_values; i != 0;)
525	{	459	{
526	key_value *next = i->next;	460	key_value *next = i->next;
527	delete i;	461	delete i;
		462
528	i = next;	463	i = next;
529	}	464	}
530		465
531	op->key_values = 0;	466	op->key_values = 0;
532	}	467	}
533		468
534	/*	469	/*
535	* clear_object() frees everything allocated by an object, and also
536	* clears all variables and flags to default settings.
537	*/
538
539	void clear_object(object *op)
540	{
541	op->clear ();
542
543	free_key_values (op);
544
545	/* the memset will clear all these values for us, but we need
546	* to reduce the refcount on them.
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,	470	* copy_to first frees everything allocated by the dst object,
589	* and then copies the contends of the first object into the second	471	* and then copies the contents of itself into the second
590	* object, allocating what needs to be allocated. Basically, any	472	* object, allocating what needs to be allocated. Basically, any
591	* data that is malloc'd needs to be re-malloc/copied. Otherwise,	473	* 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	474	* if the first object is freed, the pointers in the new object
593	* will point at garbage.	475	* will point at garbage.
594	*/	476	*/
595		477	void
596	void copy_object(object *op2, object *op)	478	object::copy_to (object *dst)
597	{	479	{
598	int is_freed=QUERY_FLAG(op,FLAG_FREED),is_removed=QUERY_FLAG(op,FLAG_REMOVED);	480	bool is_freed = QUERY_FLAG (dst, FLAG_FREED);
		481	bool is_removed = QUERY_FLAG (dst, FLAG_REMOVED);
599		482
600	op->clear ();	483	*(object_copy *)dst = *this;
601		484
602	free_key_values (op);	485	if (is_freed)
		486	SET_FLAG (dst, FLAG_FREED);
603		487
604	*(object_special *)op = *(object_special *)op2;	488	if (is_removed)
605	op2->clone (op);	489	SET_FLAG (dst, FLAG_REMOVED);
606		490
607	if (is_freed) SET_FLAG(op,FLAG_FREED);
608	if (is_removed) SET_FLAG(op,FLAG_REMOVED);
609
610	if (op2->speed < 0)	491	if (speed < 0)
611	op->speed_left = op2->speed_left - RANDOM() % 200 / 100.0;	492	dst->speed_left = speed_left - RANDOM () % 200 / 100.0;
612		493
613	/* Copy over key_values, if any. */	494	/* Copy over key_values, if any. */
614	if (op2->key_values != NULL) {	495	if (key_values)
		496	{
615	key_value *tail = NULL;	497	key_value *tail = 0;
616	key_value *i;	498	key_value *i;
617		499
618	op->key_values = NULL;	500	dst->key_values = 0;
619		501
620	for (i = op2->key_values; i != NULL; i = i->next)	502	for (i = key_values; i; i = i->next)
621	{	503	{
622	key_value *new_link = new key_value;	504	key_value *new_link = new key_value;
623		505
624	new_link->next = NULL;	506	new_link->next = 0;
625	new_link->key = i->key;	507	new_link->key = i->key;
626	new_link->value = i->value;	508	new_link->value = i->value;
627		509
628	/* Try and be clever here, too. */	510	/* Try and be clever here, too. */
629	if (op->key_values == NULL)	511	if (!dst->key_values)
630	{	512	{
631	op->key_values = new_link;	513	dst->key_values = new_link;
632	tail = new_link;	514	tail = new_link;
633	}	515	}
634	else	516	else
635	{	517	{
636	tail->next = new_link;	518	tail->next = new_link;
637	tail = new_link;	519	tail = new_link;
638	}	520	}
639	}	521	}
640	}	522	}
641		523
642	update_ob_speed (op);	524	dst->set_speed (dst->speed);
643	}	525	}
644		526
645	/*
646	* expand_objects() allocates more objects for the list of unused objects.
647	* It is called from get_object() if the unused list is empty.
648	*/
649
650	void expand_objects(void) {
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	}
675
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;	527	object *
685		528	object::clone ()
686	if(free_objects==NULL)	529	{
687	expand_objects();	530	object *neu = create ();
688		531	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;	532	return neu;
720	}	533	}
721		534
722	/*	535	/*
723	* If an object with the IS_TURNABLE() flag needs to be turned due	536	* 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	537	* 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.	538	* be called to update the face variable, _and_ how it looks on the map.
726	*/	539	*/
727		540	void
728	void update_turn_face(object *op) {	541	update_turn_face (object *op)
		542	{
729	if(!QUERY_FLAG(op,FLAG_IS_TURNABLE)||op->arch==NULL)	543	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || !op->arch)
730	return;	544	return;
		545
731	SET_ANIMATION(op, op->direction);	546	SET_ANIMATION (op, op->direction);
732	update_object(op,UP_OBJ_FACE);	547	update_object (op, UP_OBJ_FACE);
733	}	548	}
734		549
735	/*	550	/*
736	* Updates the speed of an object. If the speed changes from 0 to another	551	* 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.	552	* 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.	553	* This function needs to be called whenever the speed of an object changes.
739	*/	554	*/
740		555	void
741	void update_ob_speed(object *op) {	556	object::set_speed (float speed)
742	extern int arch_init;	557	{
743		558	if (flag [FLAG_FREED] && speed)
744	/* No reason putting the archetypes objects on the speed list,	559	{
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);	560	LOG (llevError, "Object %s is freed but has speed.\n", &name);
750	#ifdef MANY_CORES
751	abort();
752	#else
753	op->speed = 0;	561	speed = 0;
754	#endif
755	}	562	}
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		563
764	/* process_events() expects us to insert the object at the beginning	564	this->speed = speed;
765	* of the list. */	565
766	op->active_next = active_objects;	566	if (has_active_speed ())
767	if (op->active_next!=NULL)	567	activate ();
768	op->active_next->active_prev = op;
769	active_objects = op;
770	}
771	else {	568	else
772	/* If not on the active list, nothing needs to be done */	569	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	}	570	}
790		571
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	/*	572	/*
820	* update_object() updates the array which represents the map.	573	* update_object() updates the the map.
821	* It takes into account invisible objects (and represent squares covered	574	* It takes into account invisible objects (and represent squares covered
822	* by invisible objects by whatever is below them (unless it's another	575	* by invisible objects by whatever is below them (unless it's another
823	* invisible object, etc...)	576	* invisible object, etc...)
824	* If the object being updated is beneath a player, the look-window	577	* 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	578	* of that player is updated (this might be a suboptimal way of
826	* updating that window, though, since update_object() is called _often_)	579	* updating that window, though, since update_object() is called _often_)
827	*	580	*
828	* action is a hint of what the caller believes need to be done.	581	* 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:	582	* current action are:
834	* UP_OBJ_INSERT: op was inserted	583	* UP_OBJ_INSERT: op was inserted
835	* UP_OBJ_REMOVE: op was removed	584	* UP_OBJ_REMOVE: op was removed
836	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update	585	* 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.	586	* as that is easier than trying to look at what may have changed.
838	* UP_OBJ_FACE: only the objects face has changed.	587	* UP_OBJ_FACE: only the objects face has changed.
839	*/	588	*/
840		589	void
841	void update_object(object *op, int action) {	590	update_object (object *op, int action)
842	int update_now=0, flags;	591	{
843	MoveType move_on, move_off, move_block, move_slow;	592	MoveType move_on, move_off, move_block, move_slow;
844		593
845	if (op == NULL) {	594	if (op == NULL)
		595	{
846	/* this should never happen */	596	/* this should never happen */
847	LOG(llevDebug,"update_object() called for NULL object.\n");	597	LOG (llevDebug, "update_object() called for NULL object.\n");
848	return;	598	return;
849	}
850		599	}
851	if(op->env!=NULL) {	600
		601	if (op->env)
		602	{
852	/* Animation is currently handled by client, so nothing	603	/* Animation is currently handled by client, so nothing
853	* to do in this case.	604	* to do in this case.
854	*/	605	*/
855	return;	606	return;
856	}	607	}
857		608
858	/* If the map is saving, don't do anything as everything is	609	/* If the map is saving, don't do anything as everything is
859	* going to get freed anyways.	610	* going to get freed anyways.
860	*/	611	*/
861	if (!op->map || op->map->in_memory == MAP_SAVING) return;	612	if (!op->map || op->map->in_memory == MAP_SAVING)
862		613	return;
		614
863	/* make sure the object is within map boundaries */	615	/* make sure the object is within map boundaries */
864	if (op->x < 0 || op->x >= MAP_WIDTH(op->map) ||	616	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)) {	617	{
866	LOG(llevError,"update_object() called for object out of map!\n");	618	LOG (llevError, "update_object() called for object out of map!\n");
867	#ifdef MANY_CORES	619	#ifdef MANY_CORES
868	abort();	620	abort ();
869	#endif	621	#endif
870	return;	622	return;
871	}
872		623	}
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		624
		625	mapspace &m = op->ms ();
		626
		627	if (!(m.flags_ & P_UPTODATE))
		628	/* nop */;
880	if (action == UP_OBJ_INSERT) {	629	else if (action == UP_OBJ_INSERT)
		630	{
		631	// this is likely overkill, TODO: revisit (schmorp)
881	if (QUERY_FLAG(op, FLAG_BLOCKSVIEW) && !(flags & P_BLOCKSVIEW))	632	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))	633	|| (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(m.flags_ & P_NO_MAGIC))
885	update_now=1;	634	|| (op->type == PLAYER && !(m.flags_ & P_PLAYER))
886		635	|| (op->type == SAFE_GROUND && !(m.flags_ & P_SAFE))
		636	|| (QUERY_FLAG (op, FLAG_ALIVE) && !(m.flags_ & P_IS_ALIVE))
887	if (QUERY_FLAG(op, FLAG_DAMNED) && !(flags & P_NO_CLERIC))	637	|| (QUERY_FLAG (op, FLAG_DAMNED) && !(m.flags_ & P_NO_CLERIC))
888	update_now=1;	638	|| (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;	639	|| (m.move_off | op->move_off ) != m.move_off
		640	|| (m.move_slow | op->move_slow) != m.move_slow
895	/* This isn't perfect, but I don't expect a lot of objects to	641	/* This isn't perfect, but I don't expect a lot of objects to
896	* to have move_allow right now.	642	* to have move_allow right now.
897	*/	643	*/
898	if (((move_block | op->move_block) & ~op->move_allow) != move_block)	644	|| ((m.move_block | op->move_block) & ~op->move_allow) != m.move_block
899	update_now=1;	645	|| 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;	646	m.flags_ = 0;
901	}	647	}
902	/* if the object is being removed, we can't make intelligent	648	/* if the object is being removed, we can't make intelligent
903	* decisions, because remove_ob can't really pass the object	649	* decisions, because remove_ob can't really pass the object
904	* that is being removed.	650	* that is being removed.
905	*/	651	*/
906	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE) {	652	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)
907	update_now=1;	653	m.flags_ = 0;
908	} else if (action == UP_OBJ_FACE) {	654	else if (action == UP_OBJ_FACE)
909	/* Nothing to do for that case */	655	/* Nothing to do for that case */ ;
910	}
911	else {	656	else
912	LOG(llevError,"update_object called with invalid action: %d\n", action);	657	LOG (llevError, "update_object called with invalid action: %d\n", action);
913	}
914		658
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)	659	if (op->more)
921	update_object(op->more, action);	660	update_object (op->more, action);
922	}	661	}
923		662
		663	object *object::first;
924		664
925	/*	665	object::object ()
926	* free_object() frees everything allocated by an object, removes	666	{
927	* it from the list of used objects, and puts it on the list of	667	SET_FLAG (this, FLAG_REMOVED);
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		668
936	void free_object(object *ob) {	669	expmul = 1.0;
937	free_object2(ob, 0);	670	face = blank_face;
938	}	671	}
939	void free_object2(object *ob, int free_inventory) {
940	object *tmp,*op;
941		672
942	ob->clear ();	673	object::~object ()
		674	{
		675	free_key_values (this);
		676	}
943		677
944	if (!QUERY_FLAG(ob,FLAG_REMOVED)) {	678	void object::link ()
945	LOG(llevDebug,"Free object called with non removed object\n");	679	{
946	dump_object(ob);	680	uuid = gen_uuid ();
947	#ifdef MANY_CORES	681
948	abort();	682	refcnt_inc ();
949	#endif	683	objects.insert (this);
950	}	684	}
951	if(QUERY_FLAG(ob,FLAG_FRIENDLY)) {	685
952	LOG(llevMonster,"Warning: tried to free friendly object.\n");	686	void object::unlink ()
953	remove_friendly_object(ob);	687	{
954	}	688	objects.erase (this);
955	if(QUERY_FLAG(ob,FLAG_FREED)) {	689	refcnt_dec ();
956	dump_object(ob);	690	}
957	LOG(llevError,"Trying to free freed object.\n%s\n",errmsg);	691
		692	void
		693	object::activate ()
		694	{
		695	/* If already on active list, don't do anything */
		696	if (active)
958	return;	697	return;
		698
		699	if (has_active_speed ())
		700	actives.insert (this);
		701	}
		702
		703	void
		704	object::activate_recursive ()
		705	{
		706	activate ();
		707
		708	for (object *op = inv; op; op = op->below)
		709	op->activate_recursive ();
		710	}
		711
		712	/* This function removes object 'op' from the list of active
		713	* objects.
		714	* This should only be used for style maps or other such
		715	* reference maps where you don't want an object that isn't
		716	* in play chewing up cpu time getting processed.
		717	* The reverse of this is to call update_ob_speed, which
		718	* will do the right thing based on the speed of the object.
		719	*/
		720	void
		721	object::deactivate ()
		722	{
		723	/* If not on the active list, nothing needs to be done */
		724	if (!active)
		725	return;
		726
		727	actives.erase (this);
		728	}
		729
		730	void
		731	object::deactivate_recursive ()
		732	{
		733	for (object *op = inv; op; op = op->below)
		734	op->deactivate_recursive ();
		735
		736	deactivate ();
		737	}
		738
		739	void
		740	object::set_flag_inv (int flag, int value)
		741	{
		742	for (object *op = inv; op; op = op->below)
959	}	743	{
960	if(ob->more!=NULL) {	744	op->flag [flag] = value;
961	free_object2(ob->more, free_inventory);	745	op->set_flag_inv (flag, value);
962	ob->more=NULL;
963	}	746	}
964	if (ob->inv) {	747	}
		748
		749	/*
		750	* Remove and free all objects in the inventory of the given object.
		751	* object.c ?
		752	*/
		753	void
		754	object::destroy_inv (bool drop_to_ground)
		755	{
		756	// need to check first, because the checks below might segfault
		757	// as we might be on an invalid mapspace and crossfire code
		758	// is too buggy to ensure that the inventory is empty.
		759	// corollary: if you create arrows etc. with stuff in tis inventory,
		760	// cf will crash below with off-map x and y
		761	if (!inv)
		762	return;
		763
965	/* Only if the space blocks everything do we not process -	764	/* Only if the space blocks everything do we not process -
966	* if some form of movemnt is allowed, let objects	765	* if some form of movement is allowed, let objects
967	* drop on that space.	766	* drop on that space.
968	*/	767	*/
969	if (free_inventory || ob->map==NULL || ob->map->in_memory!=MAP_IN_MEMORY ||	768	if (!drop_to_ground
970	(GET_MAP_MOVE_BLOCK(ob->map, ob->x, ob->y) == MOVE_ALL))	769	|| !map
971	{	770	|| map->in_memory != MAP_IN_MEMORY
972	op=ob->inv;	771	|| ms ().move_block == MOVE_ALL)
973	while(op!=NULL) {	772	{
974	tmp=op->below;	773	while (inv)
975	remove_ob(op);
976	free_object2(op, free_inventory);
977	op=tmp;
978	}
979	}	774	{
980	else { /* Put objects in inventory onto this space */	775	inv->destroy_inv (drop_to_ground);
981	op=ob->inv;	776	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	}	777	}
		778	}
		779	else
		780	{ /* Put objects in inventory onto this space */
		781	while (inv)
995	}	782	{
996	}	783	object *op = inv;
997	/* Remove object from the active list */
998	ob->speed = 0;
999	update_ob_speed(ob);
1000		784
1001	SET_FLAG(ob, FLAG_FREED);	785	if (op->flag [FLAG_STARTEQUIP]
1002	ob->count = 0;	786	|| op->flag [FLAG_NO_DROP]
1003		787	|| op->type == RUNE
1004	/* Remove this object from the list of used objects */	788	|| op->type == TRAP
1005	if(ob->prev==NULL) {	789	|| op->flag [FLAG_IS_A_TEMPLATE])
1006	objects=ob->next;	790	op->destroy ();
1007	if(objects!=NULL)	791	else
1008	objects->prev=NULL;	792	map->insert (op, x, y);
		793	}
1009	}	794	}
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	}	795	}
1038		796
1039	/*	797	object *object::create ()
1040	* count_free() returns the number of objects on the list of free objects.
1041	*/
1042
1043	int count_free ()
1044	{	798	{
1045	int i=0;
1046	object *tmp=free_objects;	799	object *op = new object;
1047	while(tmp!=NULL)	800	op->link ();
1048	tmp=tmp->next, i++;
1049	return i;	801	return op;
1050	}	802	}
1051		803
1052	/*	804	void
1053	* count_used() returns the number of objects on the list of used objects.	805	object::do_destroy ()
1054	*/
1055
1056	int count_used()
1057	{	806	{
1058	int i=0;	807	if (flag [FLAG_IS_LINKED])
1059	object *tmp=objects;	808	remove_button_link (this);
1060	while(tmp!=NULL)	809
1061	tmp=tmp->next, i++;	810	if (flag [FLAG_FRIENDLY])
		811	remove_friendly_object (this);
		812
		813	if (!flag [FLAG_REMOVED])
		814	remove ();
		815
		816	if (flag [FLAG_FREED])
1062	return i;	817	return;
1063	}
1064		818
1065	/*	819	set_speed (0);
1066	* count_active() returns the number of objects on the list of active objects.
1067	*/
1068		820
1069	int count_active()	821	flag [FLAG_FREED] = 1;
		822
		823	attachable::do_destroy ();
		824
		825	destroy_inv (true);
		826	unlink ();
		827
		828	// hack to ensure that freed objects still have a valid map
		829	{
		830	static maptile *freed_map; // freed objects are moved here to avoid crashes
		831
		832	if (!freed_map)
		833	{
		834	freed_map = new maptile;
		835
		836	freed_map->name = "/internal/freed_objects_map";
		837	freed_map->width = 3;
		838	freed_map->height = 3;
		839
		840	freed_map->alloc ();
		841	freed_map->in_memory = MAP_IN_MEMORY;
		842	}
		843
		844	map = freed_map;
		845	x = 1;
		846	y = 1;
		847	}
		848
		849	head = 0;
		850
		851	if (more)
		852	{
		853	more->destroy ();
		854	more = 0;
		855	}
		856
		857	// clear those pointers that likely might have circular references to us
		858	owner = 0;
		859	enemy = 0;
		860	attacked_by = 0;
		861	}
		862
		863	void
		864	object::destroy (bool destroy_inventory)
1070	{	865	{
1071	int i=0;	866	if (destroyed ())
1072	object *tmp=active_objects;
1073	while(tmp!=NULL)
1074	tmp=tmp->active_next, i++;
1075	return i;	867	return;
		868
		869	if (destroy_inventory)
		870	destroy_inv (false);
		871
		872	attachable::destroy ();
1076	}	873	}
1077		874
1078	/*	875	/*
1079	* sub_weight() recursively (outwards) subtracts a number from the	876	* sub_weight() recursively (outwards) subtracts a number from the
1080	* weight of an object (and what is carried by it's environment(s)).	877	* weight of an object (and what is carried by it's environment(s)).
1081	*/	878	*/
1082		879	void
1083	void sub_weight (object *op, signed long weight) {	880	sub_weight (object *op, signed long weight)
		881	{
1084	while (op != NULL) {	882	while (op != NULL)
		883	{
1085	if (op->type == CONTAINER) {	884	if (op->type == CONTAINER)
1086	weight=(signed long)(weight*(100-op->stats.Str)/100);	885	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1087	}	886
1088	op->carrying-=weight;	887	op->carrying -= weight;
1089	op = op->env;	888	op = op->env;
1090	}	889	}
1091	}	890	}
1092		891
1093	/* remove_ob(op):	892	/* op->remove ():
1094	* This function removes the object op from the linked list of objects	893	* 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	894	* which it is currently tied to. When this function is done, the
1096	* object will have no environment. If the object previously had an	895	* object will have no environment. If the object previously had an
1097	* environment, the x and y coordinates will be updated to	896	* environment, the x and y coordinates will be updated to
1098	* the previous environment.	897	* the previous environment.
1099	* Beware: This function is called from the editor as well!	898	* Beware: This function is called from the editor as well!
1100	*/	899	*/
1101		900	void
1102	void remove_ob(object *op) {	901	object::remove ()
		902	{
1103	object *tmp,*last=NULL;	903	object *tmp, *last = 0;
1104	object *otmp;	904	object *otmp;
1105	tag_t tag;
1106	int check_walk_off;
1107	mapstruct *m;
1108	sint16 x,y;
1109
1110		905
1111	if(QUERY_FLAG(op,FLAG_REMOVED)) {	906	if (QUERY_FLAG (this, FLAG_REMOVED))
1112	dump_object(op);	907	return;
1113	LOG(llevError,"Trying to remove removed object.\n%s\n",errmsg);
1114		908
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);	909	SET_FLAG (this, FLAG_REMOVED);
		910	INVOKE_OBJECT (REMOVE, this);
1131		911
		912	if (more)
		913	more->remove ();
		914
1132	/*	915	/*
1133	* In this case, the object to be removed is in someones	916	* In this case, the object to be removed is in someones
1134	* inventory.	917	* inventory.
1135	*/	918	*/
1136	if(op->env!=NULL) {	919	if (env)
		920	{
1137	if(op->nrof)	921	if (nrof)
1138	sub_weight(op->env, op->weight*op->nrof);	922	sub_weight (env, weight * nrof);
1139	else	923	else
1140	sub_weight(op->env, op->weight+op->carrying);	924	sub_weight (env, weight + carrying);
1141		925
1142	/* NO_FIX_PLAYER is set when a great many changes are being	926	/* NO_FIX_PLAYER is set when a great many changes are being
1143	* made to players inventory. If set, avoiding the call	927	* made to players inventory. If set, avoiding the call
1144	* to save cpu time.	928	* to save cpu time.
1145	*/	929	*/
1146	if ((otmp=is_player_inv(op->env))!=NULL && otmp->contr &&	930	if ((otmp = in_player ()) && otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1147	!QUERY_FLAG(otmp,FLAG_NO_FIX_PLAYER))	931	otmp->update_stats ();
1148	fix_player(otmp);
1149		932
1150	if(op->above!=NULL)	933	if (above)
1151	op->above->below=op->below;	934	above->below = below;
1152	else	935	else
1153	op->env->inv=op->below;	936	env->inv = below;
1154		937
1155	if(op->below!=NULL)	938	if (below)
1156	op->below->above=op->above;	939	below->above = above;
1157		940
1158	/* we set up values so that it could be inserted into	941	/* we set up values so that it could be inserted into
1159	* the map, but we don't actually do that - it is up	942	* the map, but we don't actually do that - it is up
1160	* to the caller to decide what we want to do.	943	* to the caller to decide what we want to do.
		944	*/
		945	x = env->x, y = env->y;
		946	map = env->map;
		947	above = 0, below = 0;
		948	env = 0;
		949	}
		950	else if (map)
		951	{
		952	if (type == PLAYER)
		953	{
		954	--map->players;
		955	map->touch ();
		956	}
		957
		958	map->dirty = true;
		959
		960	/* link the object above us */
		961	if (above)
		962	above->below = below;
		963	else
		964	map->at (x, y).top = below; /* we were top, set new top */
		965
		966	/* Relink the object below us, if there is one */
		967	if (below)
		968	below->above = above;
		969	else
		970	{
		971	/* Nothing below, which means we need to relink map object for this space
		972	* use translated coordinates in case some oddness with map tiling is
		973	* evident
1161	*/	974	*/
1162	op->x=op->env->x,op->y=op->env->y;	975	if (GET_MAP_OB (map, x, y) != this)
1163	op->ox=op->x,op->oy=op->y;	976	{
1164	op->map=op->env->map;	977	char *dump = dump_object (this);
1165	op->above=NULL,op->below=NULL;	978	LOG (llevError,
1166	op->env=NULL;	979	"remove_ob: GET_MAP_OB does not return object to be removed even though it appears to be on the bottom?\n%s\n", dump);
		980	free (dump);
		981	dump = dump_object (GET_MAP_OB (map, x, y));
		982	LOG (llevError, "%s\n", dump);
		983	free (dump);
		984	}
		985
		986	map->at (x, y).bot = above; /* goes on above it. */
		987	}
		988
		989	above = 0;
		990	below = 0;
		991
		992	if (map->in_memory == MAP_SAVING)
1167	return;	993	return;
1168	}
1169		994
1170	/* If we get here, we are removing it from a map */	995	int check_walk_off = !flag [FLAG_NO_APPLY];
1171	if (op->map == NULL) return;
1172		996
1173	x = op->x;	997	for (tmp = map->at (x, y).bot; tmp; tmp = tmp->above)
1174	y = op->y;
1175	m = get_map_from_coord(op->map, &x, &y);
1176
1177	if (!m) {
1178	LOG(llevError,"remove_ob called when object was on map but appears to not be within valid coordinates? %s (%d,%d)\n",
1179	op->map->path, op->x, op->y);
1180	/* in old days, we used to set x and y to 0 and continue.
1181	* it seems if we get into this case, something is probablye
1182	* screwed up and should be fixed.
1183	*/
1184	abort();
1185	}
1186	if (op->map != m) {
1187	LOG(llevDebug,"remove_ob: Object not really on map it claimed to be on? %s != %s, %d,%d != %d,%d\n",
1188	op->map->path, m->path, op->x, op->y, x, y);
1189	}
1190
1191	/* Re did the following section of code - it looks like it had
1192	* lots of logic for things we no longer care about
1193	*/
1194
1195	/* link the object above us */
1196	if (op->above)
1197	op->above->below=op->below;
1198	else
1199	SET_MAP_TOP(m,x,y,op->below); /* we were top, set new top */
1200
1201	/* Relink the object below us, if there is one */
1202	if(op->below) {
1203	op->below->above=op->above;
1204	} else {
1205	/* Nothing below, which means we need to relink map object for this space
1206	* use translated coordinates in case some oddness with map tiling is
1207	* evident
1208	*/
1209	if(GET_MAP_OB(m,x,y)!=op) {
1210	dump_object(op);
1211	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);
1212	dump_object(GET_MAP_OB(m,x,y));
1213	LOG(llevError,"%s\n",errmsg);
1214	}	998	{
1215	SET_MAP_OB(m,x,y,op->above); /* goes on above it. */
1216	}
1217	op->above=NULL;
1218	op->below=NULL;
1219
1220	if (op->map->in_memory == MAP_SAVING)
1221	return;
1222
1223	tag = op->count;
1224	check_walk_off = ! QUERY_FLAG (op, FLAG_NO_APPLY);
1225	for(tmp=GET_MAP_OB(m,x,y);tmp!=NULL;tmp=tmp->above) {
1226	/* No point updating the players look faces if he is the object	999	/* No point updating the players look faces if he is the object
1227	* being removed.	1000	* being removed.
1228	*/	1001	*/
1229		1002
1230	if(tmp->type==PLAYER && tmp!=op) {	1003	if (tmp->type == PLAYER && tmp != this)
		1004	{
1231	/* If a container that the player is currently using somehow gets	1005	/* If a container that the player is currently using somehow gets
1232	* removed (most likely destroyed), update the player view	1006	* removed (most likely destroyed), update the player view
1233	* appropriately.	1007	* appropriately.
1234	*/	1008	*/
1235	if (tmp->container==op) {	1009	if (tmp->container == this)
1236	CLEAR_FLAG(op, FLAG_APPLIED);	1010	{
		1011	flag [FLAG_APPLIED] = 0;
1237	tmp->container=NULL;	1012	tmp->container = 0;
		1013	}
		1014
		1015	if (tmp->contr->ns)
		1016	tmp->contr->ns->floorbox_update ();
1238	}	1017	}
1239	tmp->contr->socket.update_look=1;	1018
1240	}
1241	/* See if player moving off should effect something */	1019	/* See if object moving off should effect something */
1242	if (check_walk_off && ((op->move_type & tmp->move_off) &&	1020	if (check_walk_off
		1021	&& ((move_type & tmp->move_off)
1243	(op->move_type & ~tmp->move_off & ~tmp->move_block)==0)) {	1022	&& (move_type & ~tmp->move_off & ~tmp->move_block) == 0))
1244		1023	{
1245	move_apply(tmp, op, NULL);	1024	move_apply (tmp, this, 0);
		1025
1246	if (was_destroyed (op, tag)) {	1026	if (destroyed ())
1247	LOG (llevError, "BUG: remove_ob(): name %s, archname %s destroyed "	1027	LOG (llevError, "BUG: remove_ob(): name %s, destroyed leaving object\n", tmp->debug_desc ());
1248	"leaving object\n", &tmp->name, &tmp->arch->name);
1249	}	1028	}
1250	}
1251		1029
1252	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */	1030	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */
1253		1031	//TODO: why is this horrible hacka fix? get rid of this code=bug! (schmorp)
1254	if(tmp->above == tmp)	1032	if (tmp->above == tmp)
1255	tmp->above = NULL;	1033	tmp->above = 0;
		1034
1256	last=tmp;	1035	last = tmp;
1257	}	1036	}
		1037
1258	/* last == NULL of there are no objects on this space */	1038	/* last == NULL if there are no objects on this space */
1259	if (last==NULL) {	1039	//TODO: this makes little sense, why only update the topmost object?
1260	/* set P_NEED_UPDATE, otherwise update_position will complain. In theory,	1040	if (!last)
1261	* we could preserve the flags (GET_MAP_FLAGS), but update_position figures	1041	map->at (x, y).flags_ = 0;
1262	* those out anyways, and if there are any flags set right now, they won't
1263	* be correct anyways.
1264	*/
1265	SET_MAP_FLAGS(op->map, op->x, op->y, P_NEED_UPDATE);
1266	update_position(op->map, op->x, op->y);
1267	}
1268	else	1042	else
1269	update_object(last, UP_OBJ_REMOVE);	1043	update_object (last, UP_OBJ_REMOVE);
1270		1044
1271	if(QUERY_FLAG(op,FLAG_BLOCKSVIEW)|| (op->glow_radius != 0))	1045	if (flag [FLAG_BLOCKSVIEW] || glow_radius)
1272	update_all_los(op->map, op->x, op->y);	1046	update_all_los (map, x, y);
1273		1047	}
1274	}	1048	}
1275		1049
1276	/*	1050	/*
1277	* merge_ob(op,top):	1051	* merge_ob(op,top):
1278	*	1052	*
1279	* This function goes through all objects below and including top, and	1053	* This function goes through all objects below and including top, and
1280	* merges op to the first matching object.	1054	* merges op to the first matching object.
1281	* If top is NULL, it is calculated.	1055	* If top is NULL, it is calculated.
1282	* Returns pointer to object if it succeded in the merge, otherwise NULL	1056	* Returns pointer to object if it succeded in the merge, otherwise NULL
1283	*/	1057	*/
1284		1058	object *
1285	object *merge_ob(object *op, object *top) {	1059	merge_ob (object *op, object *top)
		1060	{
1286	if(!op->nrof)	1061	if (!op->nrof)
1287	return 0;	1062	return 0;
1288	if(top==NULL)	1063
		1064	if (top)
1289	for(top=op;top!=NULL&&top->above!=NULL;top=top->above);	1065	for (top = op; top && top->above; top = top->above)
		1066	;
		1067
1290	for(;top!=NULL;top=top->below) {	1068	for (; top; top = top->below)
		1069	{
1291	if(top==op)	1070	if (top == op)
1292	continue;	1071	continue;
1293	if (CAN_MERGE(op,top))	1072
1294	{	1073	if (object::can_merge (op, top))
		1074	{
1295	top->nrof+=op->nrof;	1075	top->nrof += op->nrof;
		1076
1296	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/	1077	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/
1297	op->weight = 0; /* Don't want any adjustements now */	1078	op->weight = 0; /* Don't want any adjustements now */
1298	remove_ob(op);	1079	op->destroy ();
1299	free_object(op);
1300	return top;	1080	return top;
1301	}	1081	}
1302	}	1082	}
		1083
1303	return NULL;	1084	return 0;
1304	}	1085	}
1305		1086
1306	/*	1087	/*
1307	* same as insert_ob_in_map except it handle separate coordinates and do a clean	1088	* same as insert_ob_in_map except it handle separate coordinates and do a clean
1308	* job preparing multi-part monsters	1089	* job preparing multi-part monsters
1309	*/	1090	*/
		1091	object *
1310	object *insert_ob_in_map_at(object *op, mapstruct *m, object *originator, int flag, int x, int y){	1092	insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)
1311	object* tmp;	1093	{
1312	if (op->head)	1094	for (object *tmp = op->head_ (); tmp; tmp = tmp->more)
1313	op=op->head;	1095	{
1314	for (tmp=op;tmp;tmp=tmp->more){
1315	tmp->x=x+tmp->arch->clone.x;	1096	tmp->x = x + tmp->arch->clone.x;
1316	tmp->y=y+tmp->arch->clone.y;	1097	tmp->y = y + tmp->arch->clone.y;
1317	}	1098	}
		1099
1318	return insert_ob_in_map (op, m, originator, flag);	1100	return insert_ob_in_map (op, m, originator, flag);
1319	}	1101	}
1320		1102
1321	/*	1103	/*
1322	* insert_ob_in_map (op, map, originator, flag):	1104	* insert_ob_in_map (op, map, originator, flag):
1323	* This function inserts the object in the two-way linked list	1105	* This function inserts the object in the two-way linked list
…		…
1336	* Return value:	1118	* Return value:
1337	* new object if 'op' was merged with other object	1119	* new object if 'op' was merged with other object
1338	* NULL if 'op' was destroyed	1120	* NULL if 'op' was destroyed
1339	* just 'op' otherwise	1121	* just 'op' otherwise
1340	*/	1122	*/
1341		1123	object *
1342	object *insert_ob_in_map (object *op, mapstruct *m, object *originator, int flag)	1124	insert_ob_in_map (object *op, maptile *m, object *originator, int flag)
1343	{	1125	{
1344	object *tmp, *top, *floor=NULL;	1126	object *tmp, *top, *floor = NULL;
1345	sint16 x,y;	1127	sint16 x, y;
1346		1128
1347	if (QUERY_FLAG (op, FLAG_FREED)) {	1129	if (QUERY_FLAG (op, FLAG_FREED))
		1130	{
1348	LOG (llevError, "Trying to insert freed object!\n");	1131	LOG (llevError, "Trying to insert freed object!\n");
1349	return NULL;	1132	return NULL;
		1133	}
		1134
		1135	if (!m)
1350	}	1136	{
1351	if(m==NULL) {
1352	dump_object(op);	1137	char *dump = dump_object (op);
1353	LOG(llevError,"Trying to insert in null-map!\n%s\n",errmsg);	1138	LOG (llevError, "Trying to insert in null-map!\n%s\n", dump);
		1139	free (dump);
1354	return op;	1140	return op;
1355	}	1141	}
		1142
1356	if(out_of_map(m,op->x,op->y)) {	1143	if (out_of_map (m, op->x, op->y))
		1144	{
1357	dump_object(op);	1145	char *dump = dump_object (op);
1358	LOG(llevError,"Trying to insert object outside the map.\n%s\n", errmsg);	1146	LOG (llevError, "Trying to insert object outside the map.\n%s\n", dump);
1359	#ifdef MANY_CORES	1147	#ifdef MANY_CORES
1360	/* Better to catch this here, as otherwise the next use of this object	1148	/* Better to catch this here, as otherwise the next use of this object
1361	* is likely to cause a crash. Better to find out where it is getting	1149	* is likely to cause a crash. Better to find out where it is getting
1362	* improperly inserted.	1150	* improperly inserted.
1363	*/	1151	*/
1364	abort();	1152	abort ();
1365	#endif	1153	#endif
		1154	free (dump);
1366	return op;	1155	return op;
1367	}	1156	}
		1157
1368	if(!QUERY_FLAG(op,FLAG_REMOVED)) {	1158	if (!QUERY_FLAG (op, FLAG_REMOVED))
		1159	{
1369	dump_object(op);	1160	char *dump = dump_object (op);
1370	LOG(llevError,"Trying to insert (map) inserted object.\n%s\n", errmsg);	1161	LOG (llevError, "Trying to insert (map) inserted object.\n%s\n", dump);
		1162	free (dump);
1371	return op;	1163	return op;
		1164	}
		1165
		1166	if (op->more)
1372	}	1167	{
1373	if(op->more!=NULL) {
1374	/* The part may be on a different map. */	1168	/* The part may be on a different map. */
1375		1169
1376	object *more = op->more;	1170	object *more = op->more;
1377		1171
1378	/* We really need the caller to normalize coordinates - if	1172	/* We really need the caller to normalise coordinates - if
1379	* we set the map, that doesn't work if the location is within	1173	* we set the map, that doesn't work if the location is within
1380	* a map and this is straddling an edge. So only if coordinate	1174	* a map and this is straddling an edge. So only if coordinate
1381	* is clear wrong do we normalize it.	1175	* is clear wrong do we normalise it.
1382	*/	1176	*/
1383	if (OUT_OF_REAL_MAP(more->map, more->x, more->y)) {	1177	if (OUT_OF_REAL_MAP (more->map, more->x, more->y))
1384	/* Debugging information so you can see the last coordinates this object had */
1385	more->ox = more->x;
1386	more->oy = more->y;
1387	more->map = get_map_from_coord(m, &more->x, &more->y);	1178	more->map = get_map_from_coord (m, &more->x, &more->y);
1388	} else if (!more->map) {	1179	else if (!more->map)
		1180	{
1389	/* For backwards compatibility - when not dealing with tiled maps,	1181	/* For backwards compatibility - when not dealing with tiled maps,
1390	* more->map should always point to the parent.	1182	* more->map should always point to the parent.
1391	*/	1183	*/
1392	more->map = m;	1184	more->map = m;
1393	}	1185	}
1394		1186
1395	if (insert_ob_in_map(more, more->map, originator, flag) == NULL) {	1187	if (insert_ob_in_map (more, more->map, originator, flag) == NULL)
		1188	{
1396	if ( ! op->head)	1189	if (!op->head)
1397	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");	1190	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");
		1191
1398	return NULL;	1192	return 0;
1399	}	1193	}
1400	}	1194	}
		1195
1401	CLEAR_FLAG(op,FLAG_REMOVED);	1196	CLEAR_FLAG (op, FLAG_REMOVED);
1402		1197
1403	/* Debugging information so you can see the last coordinates this object had */
1404	op->ox=op->x;
1405	op->oy=op->y;
1406
1407	/* Ideally, the caller figures this out. However, it complicates a lot	1198	/* Ideally, the caller figures this out. However, it complicates a lot
1408	* of areas of callers (eg, anything that uses find_free_spot would now	1199	* of areas of callers (eg, anything that uses find_free_spot would now
1409	* need extra work	1200	* need extra work
1410	*/	1201	*/
1411	op->map=get_map_from_coord(m, &op->x, &op->y);	1202	op->map = get_map_from_coord (m, &op->x, &op->y);
1412	x = op->x;	1203	x = op->x;
1413	y = op->y;	1204	y = op->y;
1414		1205
1415	/* this has to be done after we translate the coordinates.	1206	/* this has to be done after we translate the coordinates.
1416	*/	1207	*/
1417	if(op->nrof && !(flag & INS_NO_MERGE)) {	1208	if (op->nrof && !(flag & INS_NO_MERGE))
1418	for(tmp=GET_MAP_OB(op->map,x,y);tmp!=NULL;tmp=tmp->above)	1209	for (tmp = GET_MAP_OB (op->map, x, y); tmp; tmp = tmp->above)
1419	if (CAN_MERGE(op,tmp)) {	1210	if (object::can_merge (op, tmp))
		1211	{
1420	op->nrof+=tmp->nrof;	1212	op->nrof += tmp->nrof;
1421	remove_ob(tmp);	1213	tmp->destroy ();
1422	free_object(tmp);	1214	}
		1215
		1216	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */
		1217	CLEAR_FLAG (op, FLAG_INV_LOCKED);
		1218
		1219	if (!QUERY_FLAG (op, FLAG_ALIVE))
		1220	CLEAR_FLAG (op, FLAG_NO_STEAL);
		1221
		1222	if (flag & INS_BELOW_ORIGINATOR)
		1223	{
		1224	if (originator->map != op->map || originator->x != op->x || originator->y != op->y)
		1225	{
		1226	LOG (llevError, "insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");
		1227	abort ();
		1228	}
		1229
		1230	op->above = originator;
		1231	op->below = originator->below;
		1232
		1233	if (op->below)
		1234	op->below->above = op;
		1235	else
		1236	op->ms ().bot = op;
		1237
		1238	/* since *below* originator, no need to update top */
		1239	originator->below = op;
		1240	}
		1241	else
		1242	{
		1243	/* If there are other objects, then */
		1244	if ((!(flag & INS_MAP_LOAD)) && ((top = GET_MAP_OB (op->map, op->x, op->y)) != NULL))
		1245	{
		1246	object *last = 0;
		1247
		1248	/*
		1249	* If there are multiple objects on this space, we do some trickier handling.
		1250	* We've already dealt with merging if appropriate.
		1251	* Generally, we want to put the new object on top. But if
		1252	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last
		1253	* floor, we want to insert above that and no further.
		1254	* Also, if there are spell objects on this space, we stop processing
		1255	* once we get to them. This reduces the need to traverse over all of
		1256	* them when adding another one - this saves quite a bit of cpu time
		1257	* when lots of spells are cast in one area. Currently, it is presumed
		1258	* that flying non pickable objects are spell objects.
		1259	*/
		1260	while (top)
		1261	{
		1262	if (QUERY_FLAG (top, FLAG_IS_FLOOR) || QUERY_FLAG (top, FLAG_OVERLAY_FLOOR))
		1263	floor = top;
		1264
		1265	if (QUERY_FLAG (top, FLAG_NO_PICK) && (top->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (top, FLAG_IS_FLOOR))
		1266	{
		1267	/* We insert above top, so we want this object below this */
		1268	top = top->below;
		1269	break;
		1270	}
		1271
		1272	last = top;
		1273	top = top->above;
1423	}	1274	}
1424	}
1425		1275
1426	CLEAR_FLAG(op,FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */	1276	/* Don't want top to be NULL, so set it to the last valid object */
1427	CLEAR_FLAG(op, FLAG_INV_LOCKED);	1277	top = last;
1428	if (!QUERY_FLAG(op, FLAG_ALIVE))
1429	CLEAR_FLAG(op, FLAG_NO_STEAL);
1430		1278
1431	if (flag & INS_BELOW_ORIGINATOR) {	1279	/* We let update_position deal with figuring out what the space
1432	if (originator->map != op->map || originator->x != op->x ||	1280	* looks like instead of lots of conditions here.
1433	originator->y != op->y) {	1281	* makes things faster, and effectively the same result.
1434	LOG(llevError,"insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");
1435	abort();
1436	}
1437	op->above = originator;
1438	op->below = originator->below;
1439	if (op->below) op->below->above = op;
1440	else SET_MAP_OB(op->map, op->x, op->y, op);
1441	/* since *below* originator, no need to update top */
1442	originator->below = op;
1443	} else {
1444	/* If there are other objects, then */
1445	if((! (flag & INS_MAP_LOAD)) && ((top=GET_MAP_OB(op->map,op->x,op->y))!=NULL)) {
1446	object *last=NULL;
1447	/*	1282	*/
1448	* If there are multiple objects on this space, we do some trickier handling.	1283
1449	* We've already dealt with merging if appropriate.	1284	/* Have object 'fall below' other objects that block view.
1450	* Generally, we want to put the new object on top. But if	1285	* Unless those objects are exits, type 66
1451	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last	1286	* If INS_ON_TOP is used, don't do this processing
1452	* floor, we want to insert above that and no further.	1287	* Need to find the object that in fact blocks view, otherwise
1453	* Also, if there are spell objects on this space, we stop processing	1288	* stacking is a bit odd.
1454	* once we get to them. This reduces the need to traverse over all of	1289	*/
1455	* them when adding another one - this saves quite a bit of cpu time	1290	if (!(flag & INS_ON_TOP) &&
1456	* when lots of spells are cast in one area. Currently, it is presumed	1291	(get_map_flags (op->map, 0, op->x, op->y, 0, 0) & P_BLOCKSVIEW) && (op->face && !op->face->visibility))
1457	* that flying non pickable objects are spell objects.	1292	{
		1293	for (last = top; last != floor; last = last->below)
		1294	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))
		1295	break;
		1296	/* Check to see if we found the object that blocks view,
		1297	* and make sure we have a below pointer for it so that
		1298	* we can get inserted below this one, which requires we
		1299	* set top to the object below us.
1458	*/	1300	*/
1459		1301	if (last && last->below && last != floor)
1460	while (top != NULL) {
1461	if (QUERY_FLAG(top, FLAG_IS_FLOOR) ||
1462	QUERY_FLAG(top, FLAG_OVERLAY_FLOOR)) floor = top;
1463	if (QUERY_FLAG(top, FLAG_NO_PICK)
1464	&& (top->move_type & (MOVE_FLY_LOW |MOVE_FLY_HIGH))
1465	&& !QUERY_FLAG(top, FLAG_IS_FLOOR))
1466	{
1467	/* We insert above top, so we want this object below this */
1468	top=top->below;
1469	break;
1470	}
1471	last = top;
1472	top = top->above;	1302	top = last->below;
1473	}	1303	}
1474	/* Don't want top to be NULL, so set it to the last valid object */
1475	top = last;
1476
1477	/* We let update_position deal with figuring out what the space
1478	* looks like instead of lots of conditions here.
1479	* makes things faster, and effectively the same result.
1480	*/
1481
1482	/* Have object 'fall below' other objects that block view.
1483	* Unless those objects are exits, type 66
1484	* If INS_ON_TOP is used, don't do this processing
1485	* Need to find the object that in fact blocks view, otherwise
1486	* stacking is a bit odd.
1487	*/
1488	if (!(flag & INS_ON_TOP) &&
1489	(get_map_flags(op->map, NULL, op->x, op->y, NULL, NULL) & P_BLOCKSVIEW) &&
1490	(op->face && !op->face->visibility)) {
1491	for (last=top; last != floor; last=last->below)
1492	if (QUERY_FLAG(last, FLAG_BLOCKSVIEW)&&(last->type != EXIT)) break;
1493	/* Check to see if we found the object that blocks view,
1494	* and make sure we have a below pointer for it so that
1495	* we can get inserted below this one, which requires we
1496	* set top to the object below us.
1497	*/
1498	if (last && last->below && last != floor) top=last->below;
1499	}
1500	} /* If objects on this space */	1304	} /* If objects on this space */
		1305
1501	if (flag & INS_MAP_LOAD)	1306	if (flag & INS_MAP_LOAD)
1502	top = GET_MAP_TOP(op->map,op->x,op->y);	1307	top = GET_MAP_TOP (op->map, op->x, op->y);
		1308
1503	if (flag & INS_ABOVE_FLOOR_ONLY) top = floor;	1309	if (flag & INS_ABOVE_FLOOR_ONLY)
		1310	top = floor;
1504		1311
1505	/* Top is the object that our object (op) is going to get inserted above.	1312	/* Top is the object that our object (op) is going to get inserted above.
1506	*/	1313	*/
1507		1314
1508	/* First object on this space */	1315	/* First object on this space */
1509	if (!top) {	1316	if (!top)
		1317	{
1510	op->above = GET_MAP_OB(op->map, op->x, op->y);	1318	op->above = GET_MAP_OB (op->map, op->x, op->y);
		1319
		1320	if (op->above)
1511	if (op->above) op->above->below = op;	1321	op->above->below = op;
		1322
1512	op->below = NULL;	1323	op->below = 0;
1513	SET_MAP_OB(op->map, op->x, op->y, op);	1324	op->ms ().bot = op;
		1325	}
		1326	else
1514	} else { /* get inserted into the stack above top */	1327	{ /* get inserted into the stack above top */
1515	op->above = top->above;	1328	op->above = top->above;
		1329
		1330	if (op->above)
1516	if (op->above) op->above->below = op;	1331	op->above->below = op;
		1332
1517	op->below = top;	1333	op->below = top;
1518	top->above = op;	1334	top->above = op;
1519	}	1335	}
		1336
1520	if (op->above==NULL)	1337	if (!op->above)
1521	SET_MAP_TOP(op->map,op->x, op->y, op);	1338	op->ms ().top = op;
1522	} /* else not INS_BELOW_ORIGINATOR */	1339	} /* else not INS_BELOW_ORIGINATOR */
1523		1340
1524	if(op->type==PLAYER)	1341	if (op->type == PLAYER)
		1342	{
1525	op->contr->do_los=1;	1343	op->contr->do_los = 1;
		1344	++op->map->players;
		1345	op->map->touch ();
		1346	}
1526		1347
		1348	op->map->dirty = true;
		1349
1527	/* If we have a floor, we know the player, if any, will be above	1350	/* If we have a floor, we know the player, if any, will be above
1528	* it, so save a few ticks and start from there.	1351	* it, so save a few ticks and start from there.
1529	*/	1352	*/
1530	if (!(flag & INS_MAP_LOAD))	1353	if (!(flag & INS_MAP_LOAD))
1531	for(tmp=floor?floor:GET_MAP_OB(op->map,op->x,op->y);tmp!=NULL;tmp=tmp->above) {	1354	if (object *pl = op->ms ().player ())
1532	if (tmp->type == PLAYER)	1355	if (pl->contr->ns)
1533	tmp->contr->socket.update_look=1;	1356	pl->contr->ns->floorbox_update ();
1534	}
1535		1357
1536	/* If this object glows, it may affect lighting conditions that are	1358	/* If this object glows, it may affect lighting conditions that are
1537	* visible to others on this map. But update_all_los is really	1359	* visible to others on this map. But update_all_los is really
1538	* an inefficient way to do this, as it means los for all players	1360	* an inefficient way to do this, as it means los for all players
1539	* on the map will get recalculated. The players could very well	1361	* on the map will get recalculated. The players could very well
1540	* be far away from this change and not affected in any way -	1362	* be far away from this change and not affected in any way -
1541	* this should get redone to only look for players within range,	1363	* this should get redone to only look for players within range,
1542	* or just updating the P_NEED_UPDATE for spaces within this area	1364	* or just updating the P_UPTODATE for spaces within this area
1543	* of effect may be sufficient.	1365	* of effect may be sufficient.
1544	*/	1366	*/
1545	if(MAP_DARKNESS(op->map) && (op->glow_radius != 0))	1367	if (op->map->darkness && (op->glow_radius != 0))
1546	update_all_los(op->map, op->x, op->y);	1368	update_all_los (op->map, op->x, op->y);
1547		1369
1548
1549	/* updates flags (blocked, alive, no magic, etc) for this map space */	1370	/* updates flags (blocked, alive, no magic, etc) for this map space */
1550	update_object(op,UP_OBJ_INSERT);	1371	update_object (op, UP_OBJ_INSERT);
1551		1372
		1373	INVOKE_OBJECT (INSERT, op);
1552		1374
1553	/* Don't know if moving this to the end will break anything. However,	1375	/* Don't know if moving this to the end will break anything. However,
1554	* we want to have update_look set above before calling this.	1376	* we want to have floorbox_update called before calling this.
1555	*	1377	*
1556	* check_move_on() must be after this because code called from	1378	* check_move_on() must be after this because code called from
1557	* check_move_on() depends on correct map flags (so functions like	1379	* check_move_on() depends on correct map flags (so functions like
1558	* blocked() and wall() work properly), and these flags are updated by	1380	* blocked() and wall() work properly), and these flags are updated by
1559	* update_object().	1381	* update_object().
1560	*/	1382	*/
1561		1383
1562	/* if this is not the head or flag has been passed, don't check walk on status */	1384	/* if this is not the head or flag has been passed, don't check walk on status */
1563
1564	if (!(flag & INS_NO_WALK_ON) && !op->head) {	1385	if (!(flag & INS_NO_WALK_ON) && !op->head)
		1386	{
1565	if (check_move_on(op, originator))	1387	if (check_move_on (op, originator))
1566	return NULL;	1388	return 0;
1567		1389
1568	/* If we are a multi part object, lets work our way through the check	1390	/* If we are a multi part object, lets work our way through the check
1569	* walk on's.	1391	* walk on's.
1570	*/	1392	*/
1571	for (tmp=op->more; tmp!=NULL; tmp=tmp->more)	1393	for (tmp = op->more; tmp != NULL; tmp = tmp->more)
1572	if (check_move_on (tmp, originator))	1394	if (check_move_on (tmp, originator))
1573	return NULL;	1395	return 0;
1574	}	1396	}
		1397
1575	return op;	1398	return op;
1576	}	1399	}
1577		1400
1578	/* this function inserts an object in the map, but if it	1401	/* this function inserts an object in the map, but if it
1579	* finds an object of its own type, it'll remove that one first.	1402	* finds an object of its own type, it'll remove that one first.
1580	* op is the object to insert it under: supplies x and the map.	1403	* op is the object to insert it under: supplies x and the map.
1581	*/	1404	*/
		1405	void
1582	void replace_insert_ob_in_map(const char *arch_string, object *op) {	1406	replace_insert_ob_in_map (const char *arch_string, object *op)
1583	object *tmp;	1407	{
1584	object *tmp1;	1408	object *tmp, *tmp1;
1585		1409
1586	/* first search for itself and remove any old instances */	1410	/* first search for itself and remove any old instances */
1587		1411
1588	for(tmp=GET_MAP_OB(op->map,op->x,op->y); tmp!=NULL; tmp=tmp->above) {	1412	for (tmp = op->ms ().bot; tmp; tmp = tmp->above)
1589	if(!strcmp(tmp->arch->name,arch_string)) /* same archetype */ {	1413	if (!strcmp (tmp->arch->name, arch_string)) /* same archetype */
1590	remove_ob(tmp);	1414	tmp->destroy ();
1591	free_object(tmp);
1592	}
1593	}
1594		1415
1595	tmp1=arch_to_object(find_archetype(arch_string));	1416	tmp1 = arch_to_object (archetype::find (arch_string));
1596		1417
1597		1418	tmp1->x = op->x;
1598	tmp1->x = op->x; tmp1->y = op->y;	1419	tmp1->y = op->y;
1599	insert_ob_in_map(tmp1,op->map,op,0);	1420	insert_ob_in_map (tmp1, op->map, op, 0);
1600	}	1421	}
		1422
		1423	object *
		1424	object::insert_at (object *where, object *originator, int flags)
		1425	{
		1426	where->map->insert (this, where->x, where->y, originator, flags);
		1427	}
1601		1428
1602	/*	1429	/*
1603	* get_split_ob(ob,nr) splits up ob into two parts. The part which	1430	* get_split_ob(ob,nr) splits up ob into two parts. The part which
1604	* is returned contains nr objects, and the remaining parts contains	1431	* is returned contains nr objects, and the remaining parts contains
1605	* the rest (or is removed and freed if that number is 0).	1432	* the rest (or is removed and freed if that number is 0).
1606	* On failure, NULL is returned, and the reason put into the	1433	* On failure, NULL is returned, and the reason put into the
1607	* global static errmsg array.	1434	* global static errmsg array.
1608	*/	1435	*/
1609		1436	object *
1610	object *get_split_ob(object *orig_ob, uint32 nr) {	1437	get_split_ob (object *orig_ob, uint32 nr)
		1438	{
1611	object *newob;	1439	object *newob;
1612	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);	1440	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);
1613		1441
1614	if(orig_ob->nrof<nr) {	1442	if (orig_ob->nrof < nr)
1615	sprintf(errmsg,"There are only %d %ss.",	1443	{
1616	orig_ob->nrof?orig_ob->nrof:1, &orig_ob->name);	1444	sprintf (errmsg, "There are only %d %ss.", orig_ob->nrof ? orig_ob->nrof : 1, &orig_ob->name);
1617	return NULL;	1445	return NULL;
1618	}	1446	}
		1447
1619	newob = object_create_clone(orig_ob);	1448	newob = object_create_clone (orig_ob);
		1449
1620	if((orig_ob->nrof-=nr)<1) {	1450	if ((orig_ob->nrof -= nr) < 1)
1621	if ( ! is_removed)	1451	orig_ob->destroy (1);
1622	remove_ob(orig_ob);
1623	free_object2(orig_ob, 1);
1624	}
1625	else if ( ! is_removed) {	1452	else if (!is_removed)
		1453	{
1626	if(orig_ob->env!=NULL)	1454	if (orig_ob->env != NULL)
1627	sub_weight (orig_ob->env,orig_ob->weight*nr);	1455	sub_weight (orig_ob->env, orig_ob->weight * nr);
1628	if (orig_ob->env == NULL && orig_ob->map->in_memory!=MAP_IN_MEMORY) {	1456	if (orig_ob->env == NULL && orig_ob->map->in_memory != MAP_IN_MEMORY)
		1457	{
1629	strcpy(errmsg, "Tried to split object whose map is not in memory.");	1458	strcpy (errmsg, "Tried to split object whose map is not in memory.");
1630	LOG(llevDebug,
1631	"Error, Tried to split object whose map is not in memory.\n");	1459	LOG (llevDebug, "Error, Tried to split object whose map is not in memory.\n");
1632	return NULL;	1460	return NULL;
1633	}	1461	}
1634	}	1462	}
		1463
1635	newob->nrof=nr;	1464	newob->nrof = nr;
1636		1465
1637	return newob;	1466	return newob;
1638	}	1467	}
1639		1468
1640	/*	1469	/*
1641	* decrease_ob_nr(object, number) decreases a specified number from	1470	* decrease_ob_nr(object, number) decreases a specified number from
1642	* the amount of an object. If the amount reaches 0, the object	1471	* the amount of an object. If the amount reaches 0, the object
1643	* is subsequently removed and freed.	1472	* is subsequently removed and freed.
1644	*	1473	*
1645	* Return value: 'op' if something is left, NULL if the amount reached 0	1474	* Return value: 'op' if something is left, NULL if the amount reached 0
1646	*/	1475	*/
1647		1476
		1477	object *
1648	object *decrease_ob_nr (object *op, uint32 i)	1478	decrease_ob_nr (object *op, uint32 i)
1649	{	1479	{
1650	object *tmp;	1480	object *tmp;
1651	player *pl;
1652		1481
1653	if (i == 0) /* objects with op->nrof require this check */	1482	if (i == 0) /* objects with op->nrof require this check */
1654	return op;	1483	return op;
1655		1484
1656	if (i > op->nrof)	1485	if (i > op->nrof)
1657	i = op->nrof;	1486	i = op->nrof;
1658		1487
1659	if (QUERY_FLAG (op, FLAG_REMOVED))	1488	if (QUERY_FLAG (op, FLAG_REMOVED))
		1489	op->nrof -= i;
		1490	else if (op->env)
		1491	{
		1492	/* is this object in the players inventory, or sub container
		1493	* therein?
		1494	*/
		1495	tmp = op->in_player ();
		1496	/* nope. Is this a container the player has opened?
		1497	* If so, set tmp to that player.
		1498	* IMO, searching through all the players will mostly
		1499	* likely be quicker than following op->env to the map,
		1500	* and then searching the map for a player.
		1501	*/
		1502	if (!tmp)
		1503	for_all_players (pl)
		1504	if (pl->ob->container == op->env)
		1505	{
		1506	tmp = pl->ob;
		1507	break;
		1508	}
		1509
		1510	if (i < op->nrof)
		1511	{
		1512	sub_weight (op->env, op->weight * i);
		1513	op->nrof -= i;
		1514	if (tmp)
		1515	esrv_send_item (tmp, op);
		1516	}
		1517	else
		1518	{
		1519	op->remove ();
		1520	op->nrof = 0;
		1521	if (tmp)
		1522	esrv_del_item (tmp->contr, op->count);
		1523	}
1660	{	1524	}
		1525	else
		1526	{
		1527	object *above = op->above;
		1528
		1529	if (i < op->nrof)
1661	op->nrof -= i;	1530	op->nrof -= i;
1662	}	1531	else
1663	else if (op->env != NULL)
1664	{
1665	/* is this object in the players inventory, or sub container
1666	* therein?
1667	*/
1668	tmp = is_player_inv (op->env);
1669	/* nope. Is this a container the player has opened?
1670	* If so, set tmp to that player.
1671	* IMO, searching through all the players will mostly
1672	* likely be quicker than following op->env to the map,
1673	* and then searching the map for a player.
1674	*/
1675	if (!tmp) {
1676	for (pl=first_player; pl; pl=pl->next)
1677	if (pl->ob->container == op->env) break;
1678	if (pl) tmp=pl->ob;
1679	else tmp=NULL;
1680	}	1532	{
1681
1682	if (i < op->nrof) {
1683	sub_weight (op->env, op->weight * i);
1684	op->nrof -= i;
1685	if (tmp) {
1686	esrv_send_item(tmp, op);
1687	}
1688	} else {
1689	remove_ob (op);	1533	op->remove ();
1690	op->nrof = 0;	1534	op->nrof = 0;
1691	if (tmp) {
1692	esrv_del_item(tmp->contr, op->count);
1693	}	1535	}
1694	}
1695	}
1696	else
1697	{
1698	object *above = op->above;
1699		1536
1700	if (i < op->nrof) {
1701	op->nrof -= i;
1702	} else {
1703	remove_ob (op);
1704	op->nrof = 0;
1705	}
1706	/* Since we just removed op, op->above is null */	1537	/* Since we just removed op, op->above is null */
1707	for (tmp = above; tmp != NULL; tmp = tmp->above)	1538	for (tmp = above; tmp; tmp = tmp->above)
1708	if (tmp->type == PLAYER) {	1539	if (tmp->type == PLAYER)
		1540	{
1709	if (op->nrof)	1541	if (op->nrof)
1710	esrv_send_item(tmp, op);	1542	esrv_send_item (tmp, op);
1711	else	1543	else
1712	esrv_del_item(tmp->contr, op->count);	1544	esrv_del_item (tmp->contr, op->count);
1713	}	1545	}
1714	}	1546	}
1715		1547
1716	if (op->nrof) {	1548	if (op->nrof)
1717	return op;	1549	return op;
1718	} else {	1550	else
1719	free_object (op);	1551	{
		1552	op->destroy ();
1720	return NULL;	1553	return 0;
1721	}	1554	}
1722	}	1555	}
1723		1556
1724	/*	1557	/*
1725	* add_weight(object, weight) adds the specified weight to an object,	1558	* add_weight(object, weight) adds the specified weight to an object,
1726	* and also updates how much the environment(s) is/are carrying.	1559	* and also updates how much the environment(s) is/are carrying.
1727	*/	1560	*/
1728		1561
		1562	void
1729	void add_weight (object *op, signed long weight) {	1563	add_weight (object *op, signed long weight)
		1564	{
1730	while (op!=NULL) {	1565	while (op != NULL)
		1566	{
1731	if (op->type == CONTAINER) {	1567	if (op->type == CONTAINER)
1732	weight=(signed long)(weight*(100-op->stats.Str)/100);	1568	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1733	}	1569
1734	op->carrying+=weight;	1570	op->carrying += weight;
1735	op=op->env;	1571	op = op->env;
1736	}	1572	}
1737	}	1573	}
1738		1574
		1575	object *
		1576	insert_ob_in_ob (object *op, object *where)
		1577	{
		1578	if (!where)
		1579	{
		1580	char *dump = dump_object (op);
		1581	LOG (llevError, "Trying to put object in NULL.\n%s\n", dump);
		1582	free (dump);
		1583	return op;
		1584	}
		1585
		1586	if (where->head)
		1587	{
		1588	LOG (llevDebug, "Warning: Tried to insert object into wrong part of multipart object.\n");
		1589	where = where->head;
		1590	}
		1591
		1592	return where->insert (op);
		1593	}
		1594
1739	/*	1595	/*
1740	* insert_ob_in_ob(op,environment):	1596	* env->insert (op)
1741	* This function inserts the object op in the linked list	1597	* This function inserts the object op in the linked list
1742	* inside the object environment.	1598	* inside the object environment.
1743	*	1599	*
1744	* Eneq(@csd.uu.se): Altered insert_ob_in_ob to make things picked up enter
1745	* the inventory at the last position or next to other objects of the same
1746	* type.
1747	* Frank: Now sorted by type, archetype and magic!
1748	*
1749	* The function returns now pointer to inserted item, and return value can	1600	* The function returns now pointer to inserted item, and return value can
1750	* be != op, if items are merged. -Tero	1601	* be != op, if items are merged. -Tero
1751	*/	1602	*/
1752		1603
1753	object *insert_ob_in_ob(object *op,object *where) {	1604	object *
		1605	object::insert (object *op)
		1606	{
1754	object *tmp, *otmp;	1607	object *tmp, *otmp;
1755		1608
1756	if(!QUERY_FLAG(op,FLAG_REMOVED)) {	1609	if (!QUERY_FLAG (op, FLAG_REMOVED))
1757	dump_object(op);	1610	op->remove ();
1758	LOG(llevError,"Trying to insert (ob) inserted object.\n%s\n", errmsg);	1611
1759	return op;
1760	}
1761	if(where==NULL) {
1762	dump_object(op);
1763	LOG(llevError,"Trying to put object in NULL.\n%s\n", errmsg);
1764	return op;
1765	}
1766	if (where->head) {
1767	LOG(llevDebug,
1768	"Warning: Tried to insert object wrong part of multipart object.\n");
1769	where = where->head;
1770	}
1771	if (op->more) {	1612	if (op->more)
		1613	{
1772	LOG(llevError, "Tried to insert multipart object %s (%d)\n",	1614	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);
1773	&op->name, op->count);
1774	return op;	1615	return op;
1775	}	1616	}
		1617
1776	CLEAR_FLAG(op, FLAG_OBJ_ORIGINAL);	1618	CLEAR_FLAG (op, FLAG_OBJ_ORIGINAL);
1777	CLEAR_FLAG(op, FLAG_REMOVED);	1619	CLEAR_FLAG (op, FLAG_REMOVED);
1778	if(op->nrof) {	1620	if (op->nrof)
		1621	{
1779	for(tmp=where->inv;tmp!=NULL;tmp=tmp->below)	1622	for (tmp = inv; tmp != NULL; tmp = tmp->below)
1780	if ( CAN_MERGE(tmp,op) ) {	1623	if (object::can_merge (tmp, op))
		1624	{
1781	/* return the original object and remove inserted object	1625	/* return the original object and remove inserted object
1782	(client needs the original object) */	1626	(client needs the original object) */
1783	tmp->nrof += op->nrof;	1627	tmp->nrof += op->nrof;
1784	/* Weight handling gets pretty funky. Since we are adding to	1628	/* Weight handling gets pretty funky. Since we are adding to
1785	* tmp->nrof, we need to increase the weight.	1629	* tmp->nrof, we need to increase the weight.
1786	*/	1630	*/
1787	add_weight (where, op->weight*op->nrof);	1631	add_weight (this, op->weight * op->nrof);
1788	SET_FLAG(op, FLAG_REMOVED);	1632	SET_FLAG (op, FLAG_REMOVED);
1789	free_object(op); /* free the inserted object */	1633	op->destroy (); /* free the inserted object */
1790	op = tmp;	1634	op = tmp;
1791	remove_ob (op); /* and fix old object's links */	1635	op->remove (); /* and fix old object's links */
1792	CLEAR_FLAG(op, FLAG_REMOVED);	1636	CLEAR_FLAG (op, FLAG_REMOVED);
1793	break;	1637	break;
1794	}	1638	}
1795		1639
1796	/* I assume combined objects have no inventory	1640	/* I assume combined objects have no inventory
1797	* We add the weight - this object could have just been removed	1641	* We add the weight - this object could have just been removed
1798	* (if it was possible to merge). calling remove_ob will subtract	1642	* (if it was possible to merge). calling remove_ob will subtract
1799	* the weight, so we need to add it in again, since we actually do	1643	* the weight, so we need to add it in again, since we actually do
1800	* the linking below	1644	* the linking below
1801	*/	1645	*/
1802	add_weight (where, op->weight*op->nrof);	1646	add_weight (this, op->weight * op->nrof);
		1647	}
1803	} else	1648	else
1804	add_weight (where, (op->weight+op->carrying));	1649	add_weight (this, (op->weight + op->carrying));
1805		1650
1806	otmp=is_player_inv(where);	1651	otmp = this->in_player ();
1807	if (otmp&&otmp->contr!=NULL) {	1652	if (otmp && otmp->contr)
1808	if (!QUERY_FLAG(otmp,FLAG_NO_FIX_PLAYER))	1653	if (!QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1809	fix_player(otmp);	1654	otmp->update_stats ();
1810	}
1811		1655
1812	op->map=NULL;	1656	op->map = 0;
1813	op->env=where;	1657	op->env = this;
1814	op->above=NULL;	1658	op->above = 0;
1815	op->below=NULL;	1659	op->below = 0;
1816	op->x=0,op->y=0;	1660	op->x = 0, op->y = 0;
1817	op->ox=0,op->oy=0;
1818		1661
1819	/* reset the light list and los of the players on the map */	1662	/* reset the light list and los of the players on the map */
1820	if((op->glow_radius!=0)&&where->map)	1663	if ((op->glow_radius != 0) && map)
1821	{	1664	{
1822	#ifdef DEBUG_LIGHTS	1665	#ifdef DEBUG_LIGHTS
1823	LOG(llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n",	1666	LOG (llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n", op->name);
1824	op->name);
1825	#endif /* DEBUG_LIGHTS */	1667	#endif /* DEBUG_LIGHTS */
1826	if (MAP_DARKNESS(where->map)) update_all_los(where->map, where->x, where->y);	1668	if (map->darkness)
		1669	update_all_los (map, x, y);
1827	}	1670	}
1828		1671
1829	/* Client has no idea of ordering so lets not bother ordering it here.	1672	/* Client has no idea of ordering so lets not bother ordering it here.
1830	* It sure simplifies this function...	1673	* It sure simplifies this function...
1831	*/	1674	*/
1832	if (where->inv==NULL)	1675	if (!inv)
1833	where->inv=op;	1676	inv = op;
1834	else {	1677	else
		1678	{
1835	op->below = where->inv;	1679	op->below = inv;
1836	op->below->above = op;	1680	op->below->above = op;
1837	where->inv = op;	1681	inv = op;
1838	}	1682	}
		1683
		1684	INVOKE_OBJECT (INSERT, this);
		1685
1839	return op;	1686	return op;
1840	}	1687	}
1841		1688
1842	/*	1689	/*
1843	* Checks if any objects has a move_type that matches objects	1690	* Checks if any objects has a move_type that matches objects
…		…
1857	*	1704	*
1858	* MSW 2001-07-08: Check all objects on space, not just those below	1705	* MSW 2001-07-08: Check all objects on space, not just those below
1859	* object being inserted. insert_ob_in_map may not put new objects	1706	* object being inserted. insert_ob_in_map may not put new objects
1860	* on top.	1707	* on top.
1861	*/	1708	*/
1862		1709	int
1863	int check_move_on (object *op, object *originator)	1710	check_move_on (object *op, object *originator)
1864	{	1711	{
1865	object *tmp;	1712	object *tmp;
1866	tag_t tag;
1867	mapstruct *m=op->map;	1713	maptile *m = op->map;
1868	int x=op->x, y=op->y;	1714	int x = op->x, y = op->y;
		1715
1869	MoveType move_on, move_slow, move_block;	1716	MoveType move_on, move_slow, move_block;
1870		1717
1871	if(QUERY_FLAG(op,FLAG_NO_APPLY))	1718	if (QUERY_FLAG (op, FLAG_NO_APPLY))
1872	return 0;	1719	return 0;
1873		1720
1874	tag = op->count;
1875
1876	move_on = GET_MAP_MOVE_ON(op->map, op->x, op->y);	1721	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);
1877	move_slow = GET_MAP_MOVE_SLOW(op->map, op->x, op->y);	1722	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);
1878	move_block = GET_MAP_MOVE_BLOCK(op->map, op->x, op->y);	1723	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);
1879		1724
1880	/* if nothing on this space will slow op down or be applied,	1725	/* if nothing on this space will slow op down or be applied,
1881	* no need to do checking below. have to make sure move_type	1726	* no need to do checking below. have to make sure move_type
1882	* is set, as lots of objects don't have it set - we treat that	1727	* is set, as lots of objects don't have it set - we treat that
1883	* as walking.	1728	* as walking.
1884	*/	1729	*/
1885	if (op->move_type && !(op->move_type & move_on) && !(op->move_type & move_slow))	1730	if (op->move_type && !(op->move_type & move_on) && !(op->move_type & move_slow))
1886	return 0;	1731	return 0;
1887		1732
1888	/* This is basically inverse logic of that below - basically,	1733	/* This is basically inverse logic of that below - basically,
1889	* if the object can avoid the move on or slow move, they do so,	1734	* if the object can avoid the move on or slow move, they do so,
1890	* but can't do it if the alternate movement they are using is	1735	* but can't do it if the alternate movement they are using is
1891	* blocked. Logic on this seems confusing, but does seem correct.	1736	* blocked. Logic on this seems confusing, but does seem correct.
1892	*/	1737	*/
1893	if ((op->move_type & ~move_on & ~move_block) != 0 &&	1738	if ((op->move_type & ~move_on & ~move_block) != 0 && (op->move_type & ~move_slow & ~move_block) != 0)
1894	(op->move_type & ~move_slow & ~move_block) != 0) return 0;	1739	return 0;
1895		1740
1896	/* The objects have to be checked from top to bottom.	1741	/* The objects have to be checked from top to bottom.
1897	* Hence, we first go to the top:	1742	* Hence, we first go to the top:
1898	*/	1743	*/
1899		1744
1900	for (tmp=GET_MAP_OB(op->map, op->x, op->y); tmp!=NULL &&	1745	for (tmp = op->ms ().bot; tmp && tmp->above; tmp = tmp->above)
1901	tmp->above!=NULL; tmp=tmp->above) {	1746	{
1902	/* Trim the search when we find the first other spell effect	1747	/* Trim the search when we find the first other spell effect
1903	* this helps performance so that if a space has 50 spell objects,	1748	* this helps performance so that if a space has 50 spell objects,
1904	* we don't need to check all of them.	1749	* we don't need to check all of them.
1905	*/	1750	*/
1906	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG(tmp, FLAG_NO_PICK)) break;	1751	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG (tmp, FLAG_NO_PICK))
		1752	break;
		1753	}
		1754
		1755	for (; tmp; tmp = tmp->below)
1907	}	1756	{
1908	for(;tmp!=NULL; tmp=tmp->below) {	1757	if (tmp == op)
1909	if (tmp == op) continue; /* Can't apply yourself */	1758	continue; /* Can't apply yourself */
1910		1759
1911	/* Check to see if one of the movement types should be slowed down.	1760	/* Check to see if one of the movement types should be slowed down.
1912	* Second check makes sure that the movement types not being slowed	1761	* Second check makes sure that the movement types not being slowed
1913	* (~slow_move) is not blocked on this space - just because the	1762	* (~slow_move) is not blocked on this space - just because the
1914	* space doesn't slow down swimming (for example), if you can't actually	1763	* space doesn't slow down swimming (for example), if you can't actually
1915	* swim on that space, can't use it to avoid the penalty.	1764	* swim on that space, can't use it to avoid the penalty.
1916	*/	1765	*/
1917	if (!QUERY_FLAG(op, FLAG_WIZPASS)) {	1766	if (!QUERY_FLAG (op, FLAG_WIZPASS))
		1767	{
1918	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||	1768	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||
1919	((op->move_type & tmp->move_slow) &&
1920	(op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0)) {	1769	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))
		1770	{
1921		1771
1922	float diff;	1772	float
1923
1924	diff = tmp->move_slow_penalty*FABS(op->speed);	1773	diff = tmp->move_slow_penalty * FABS (op->speed);
		1774
1925	if (op->type == PLAYER) {	1775	if (op->type == PLAYER)
1926	if ((QUERY_FLAG(tmp, FLAG_IS_HILLY) && find_skill_by_number(op, SK_CLIMBING)) ||	1776	if ((QUERY_FLAG (tmp, FLAG_IS_HILLY) && find_skill_by_number (op, SK_CLIMBING)) ||
1927	(QUERY_FLAG(tmp, FLAG_IS_WOODED) && find_skill_by_number(op, SK_WOODSMAN))) {	1777	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))
1928	diff /= 4.0;	1778	diff /= 4.0;
1929	}	1779
1930	}
1931	op->speed_left -= diff;	1780	op->speed_left -= diff;
1932	}	1781	}
1933	}	1782	}
1934		1783
1935	/* Basically same logic as above, except now for actual apply. */	1784	/* Basically same logic as above, except now for actual apply. */
1936	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||	1785	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||
1937	((op->move_type & tmp->move_on) &&
1938	(op->move_type & ~tmp->move_on & ~tmp->move_block)==0)) {	1786	((op->move_type & tmp->move_on) && (op->move_type & ~tmp->move_on & ~tmp->move_block) == 0))
1939		1787	{
1940	move_apply(tmp, op, originator);	1788	move_apply (tmp, op, originator);
		1789
1941	if (was_destroyed (op, tag))	1790	if (op->destroyed ())
1942	return 1;	1791	return 1;
1943		1792
1944	/* what the person/creature stepped onto has moved the object	1793	/* what the person/creature stepped onto has moved the object
1945	* someplace new. Don't process any further - if we did,	1794	* someplace new. Don't process any further - if we did,
1946	* have a feeling strange problems would result.	1795	* have a feeling strange problems would result.
1947	*/	1796	*/
1948	if (op->map != m || op->x != x || op->y != y) return 0;	1797	if (op->map != m || op->x != x || op->y != y)
		1798	return 0;
1949	}	1799	}
1950	}	1800	}
		1801
1951	return 0;	1802	return 0;
1952	}	1803	}
1953		1804
1954	/*	1805	/*
1955	* present_arch(arch, map, x, y) searches for any objects with	1806	* present_arch(arch, map, x, y) searches for any objects with
1956	* a matching archetype at the given map and coordinates.	1807	* a matching archetype at the given map and coordinates.
1957	* The first matching object is returned, or NULL if none.	1808	* The first matching object is returned, or NULL if none.
1958	*/	1809	*/
1959		1810	object *
1960	object *present_arch(const archetype *at, mapstruct *m, int x, int y) {	1811	present_arch (const archetype *at, maptile *m, int x, int y)
1961	object *tmp;	1812	{
1962	if(m==NULL || out_of_map(m,x,y)) {	1813	if (!m || out_of_map (m, x, y))
		1814	{
1963	LOG(llevError,"Present_arch called outside map.\n");	1815	LOG (llevError, "Present_arch called outside map.\n");
1964	return NULL;	1816	return NULL;
1965	}	1817	}
1966	for(tmp=GET_MAP_OB(m,x,y); tmp != NULL; tmp = tmp->above)	1818
		1819	for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)
1967	if(tmp->arch == at)	1820	if (tmp->arch == at)
1968	return tmp;	1821	return tmp;
		1822
1969	return NULL;	1823	return NULL;
1970	}	1824	}
1971		1825
1972	/*	1826	/*
1973	* present(type, map, x, y) searches for any objects with	1827	* present(type, map, x, y) searches for any objects with
1974	* a matching type variable at the given map and coordinates.	1828	* a matching type variable at the given map and coordinates.
1975	* The first matching object is returned, or NULL if none.	1829	* The first matching object is returned, or NULL if none.
1976	*/	1830	*/
1977		1831	object *
1978	object *present(unsigned char type,mapstruct *m, int x,int y) {	1832	present (unsigned char type, maptile *m, int x, int y)
1979	object *tmp;	1833	{
1980	if(out_of_map(m,x,y)) {	1834	if (out_of_map (m, x, y))
		1835	{
1981	LOG(llevError,"Present called outside map.\n");	1836	LOG (llevError, "Present called outside map.\n");
1982	return NULL;	1837	return NULL;
1983	}	1838	}
1984	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)
1985	if(tmp->type==type)	1841	if (tmp->type == type)
1986	return tmp;	1842	return tmp;
		1843
1987	return NULL;	1844	return NULL;
1988	}	1845	}
1989		1846
1990	/*	1847	/*
1991	* present_in_ob(type, object) searches for any objects with	1848	* present_in_ob(type, object) searches for any objects with
1992	* a matching type variable in the inventory of the given object.	1849	* a matching type variable in the inventory of the given object.
1993	* The first matching object is returned, or NULL if none.	1850	* The first matching object is returned, or NULL if none.
1994	*/	1851	*/
1995		1852	object *
1996	object *present_in_ob(unsigned char type, const object *op) {	1853	present_in_ob (unsigned char type, const object *op)
1997	object *tmp;	1854	{
1998	for(tmp=op->inv;tmp!=NULL;tmp=tmp->below)	1855	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
1999	if(tmp->type==type)	1856	if (tmp->type == type)
2000	return tmp;	1857	return tmp;
		1858
2001	return NULL;	1859	return NULL;
2002	}	1860	}
2003		1861
2004	/*	1862	/*
2005	* present_in_ob (type, str, object) searches for any objects with	1863	* present_in_ob (type, str, object) searches for any objects with
…		…
2013	* str is the string to match against. Note that we match against	1871	* str is the string to match against. Note that we match against
2014	* the object name, not the archetype name. this is so that the	1872	* the object name, not the archetype name. this is so that the
2015	* spell code can use one object type (force), but change it's name	1873	* spell code can use one object type (force), but change it's name
2016	* to be unique.	1874	* to be unique.
2017	*/	1875	*/
2018		1876	object *
2019	object *present_in_ob_by_name(int type, const char *str, const object *op) {	1877	present_in_ob_by_name (int type, const char *str, const object *op)
2020	object *tmp;	1878	{
2021
2022	for(tmp=op->inv; tmp!=NULL; tmp=tmp->below) {	1879	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2023	if ((type==-1 || tmp->type==type) && (!strcmp(str, tmp->name)))	1880	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))
2024	return tmp;	1881	return tmp;
2025	}	1882
2026	return NULL;	1883	return 0;
2027	}	1884	}
2028		1885
2029	/*	1886	/*
2030	* present_arch_in_ob(archetype, object) searches for any objects with	1887	* present_arch_in_ob(archetype, object) searches for any objects with
2031	* a matching archetype in the inventory of the given object.	1888	* a matching archetype in the inventory of the given object.
2032	* The first matching object is returned, or NULL if none.	1889	* The first matching object is returned, or NULL if none.
2033	*/	1890	*/
2034		1891	object *
2035	object *present_arch_in_ob(const archetype *at, const object *op) {	1892	present_arch_in_ob (const archetype *at, const object *op)
2036	object *tmp;	1893	{
2037	for(tmp=op->inv;tmp!=NULL;tmp=tmp->below)	1894	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
2038	if( tmp->arch == at)	1895	if (tmp->arch == at)
2039	return tmp;	1896	return tmp;
		1897
2040	return NULL;	1898	return NULL;
2041	}	1899	}
2042		1900
2043	/*	1901	/*
2044	* activate recursively a flag on an object inventory	1902	* activate recursively a flag on an object inventory
2045	*/	1903	*/
		1904	void
2046	void flag_inv(object*op, int flag){	1905	flag_inv (object *op, int flag)
2047	object *tmp;	1906	{
2048	if(op->inv)	1907	if (op->inv)
2049	for(tmp = op->inv; tmp != NULL; tmp = tmp->below){	1908	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
		1909	{
2050	SET_FLAG(tmp, flag);	1910	SET_FLAG (tmp, flag);
2051	flag_inv(tmp,flag);	1911	flag_inv (tmp, flag);
2052	}	1912	}
		1913	}
		1914
2053	}/*	1915	/*
2054	* desactivate recursively a flag on an object inventory	1916	* deactivate recursively a flag on an object inventory
2055	*/	1917	*/
		1918	void
2056	void unflag_inv(object*op, int flag){	1919	unflag_inv (object *op, int flag)
2057	object *tmp;	1920	{
2058	if(op->inv)	1921	if (op->inv)
2059	for(tmp = op->inv; tmp != NULL; tmp = tmp->below){	1922	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
		1923	{
2060	CLEAR_FLAG(tmp, flag);	1924	CLEAR_FLAG (tmp, flag);
2061	unflag_inv(tmp,flag);	1925	unflag_inv (tmp, flag);
2062	}	1926	}
2063	}	1927	}
2064		1928
2065	/*	1929	/*
2066	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in	1930	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in
2067	* all it's inventory (recursively).	1931	* all it's inventory (recursively).
2068	* If checksums are used, a player will get set_cheat called for	1932	* If checksums are used, a player will get set_cheat called for
2069	* him/her-self and all object carried by a call to this function.	1933	* him/her-self and all object carried by a call to this function.
2070	*/	1934	*/
2071		1935	void
2072	void set_cheat(object *op) {	1936	set_cheat (object *op)
		1937	{
2073	SET_FLAG(op, FLAG_WAS_WIZ);	1938	SET_FLAG (op, FLAG_WAS_WIZ);
2074	flag_inv(op, FLAG_WAS_WIZ);	1939	flag_inv (op, FLAG_WAS_WIZ);
2075	}	1940	}
2076		1941
2077	/*	1942	/*
2078	* find_free_spot(object, map, x, y, start, stop) will search for	1943	* find_free_spot(object, map, x, y, start, stop) will search for
2079	* a spot at the given map and coordinates which will be able to contain	1944	* a spot at the given map and coordinates which will be able to contain
…		…
2093	* because arch_blocked (now ob_blocked) needs to know the movement type	1958	* because arch_blocked (now ob_blocked) needs to know the movement type
2094	* to know if the space in question will block the object. We can't use	1959	* to know if the space in question will block the object. We can't use
2095	* the archetype because that isn't correct if the monster has been	1960	* the archetype because that isn't correct if the monster has been
2096	* customized, changed states, etc.	1961	* customized, changed states, etc.
2097	*/	1962	*/
2098		1963	int
2099	int find_free_spot(const object *ob, mapstruct *m,int x,int y,int start,int stop) {	1964	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)
		1965	{
2100	int i,index=0, flag;	1966	int index = 0, flag;
2101	static int altern[SIZEOFFREE];	1967	int altern[SIZEOFFREE];
2102		1968
2103	for(i=start;i<stop;i++) {	1969	for (int i = start; i < stop; i++)
		1970	{
2104	flag = ob_blocked(ob,m,x+freearr_x[i],y+freearr_y[i]);	1971	flag = ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]);
2105	if(!flag)	1972	if (!flag)
2106	altern[index++]=i;	1973	altern [index++] = i;
2107		1974
2108	/* Basically, if we find a wall on a space, we cut down the search size.	1975	/* Basically, if we find a wall on a space, we cut down the search size.
2109	* In this way, we won't return spaces that are on another side of a wall.	1976	* In this way, we won't return spaces that are on another side of a wall.
2110	* This mostly work, but it cuts down the search size in all directions -	1977	* This mostly work, but it cuts down the search size in all directions -
2111	* if the space being examined only has a wall to the north and empty	1978	* if the space being examined only has a wall to the north and empty
2112	* spaces in all the other directions, this will reduce the search space	1979	* spaces in all the other directions, this will reduce the search space
2113	* to only the spaces immediately surrounding the target area, and	1980	* to only the spaces immediately surrounding the target area, and
2114	* won't look 2 spaces south of the target space.	1981	* won't look 2 spaces south of the target space.
2115	*/	1982	*/
2116	else if ((flag & AB_NO_PASS) && maxfree[i]<stop)	1983	else if ((flag & P_NO_PASS) && maxfree[i] < stop)
2117	stop=maxfree[i];	1984	stop = maxfree[i];
2118	}	1985	}
2119	if(!index) return -1;	1986
		1987	if (!index)
		1988	return -1;
		1989
2120	return altern[RANDOM()%index];	1990	return altern[RANDOM () % index];
2121	}	1991	}
2122		1992
2123	/*	1993	/*
2124	* find_first_free_spot(archetype, mapstruct, x, y) works like	1994	* find_first_free_spot(archetype, maptile, x, y) works like
2125	* find_free_spot(), but it will search max number of squares.	1995	* find_free_spot(), but it will search max number of squares.
2126	* But it will return the first available spot, not a random choice.	1996	* But it will return the first available spot, not a random choice.
2127	* Changed 0.93.2: Have it return -1 if there is no free spot available.	1997	* Changed 0.93.2: Have it return -1 if there is no free spot available.
2128	*/	1998	*/
2129		1999	int
2130	int find_first_free_spot(const object *ob, mapstruct *m,int x,int y) {	2000	find_first_free_spot (const object *ob, maptile *m, int x, int y)
2131	int i;	2001	{
2132	for(i=0;i<SIZEOFFREE;i++) {	2002	for (int i = 0; i < SIZEOFFREE; i++)
2133	if(!ob_blocked(ob,m,x+freearr_x[i],y+freearr_y[i]))	2003	if (!ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]))
2134	return i;	2004	return i;
2135	}	2005
2136	return -1;	2006	return -1;
2137	}	2007	}
2138		2008
2139	/*	2009	/*
2140	* The function permute(arr, begin, end) randomly reorders the array	2010	* The function permute(arr, begin, end) randomly reorders the array
2141	* arr[begin..end-1].	2011	* arr[begin..end-1].
		2012	* now uses a fisher-yates shuffle, old permute was broken
2142	*/	2013	*/
		2014	static void
2143	static void permute(int *arr, int begin, int end)	2015	permute (int *arr, int begin, int end)
2144	{	2016	{
2145	int i, j, tmp, len;	2017	arr += begin;
		2018	end -= begin;
2146		2019
2147	len = end-begin;	2020	while (--end)
2148	for(i = begin; i < end; i++)	2021	swap (arr [end], arr [RANDOM () % (end + 1)]);
2149	{
2150	j = begin+RANDOM()%len;
2151
2152	tmp = arr[i];
2153	arr[i] = arr[j];
2154	arr[j] = tmp;
2155	}
2156	}	2022	}
2157		2023
2158	/* new function to make monster searching more efficient, and effective!	2024	/* new function to make monster searching more efficient, and effective!
2159	* This basically returns a randomized array (in the passed pointer) of	2025	* This basically returns a randomized array (in the passed pointer) of
2160	* the spaces to find monsters. In this way, it won't always look for	2026	* the spaces to find monsters. In this way, it won't always look for
2161	* monsters to the north first. However, the size of the array passed	2027	* monsters to the north first. However, the size of the array passed
2162	* covers all the spaces, so within that size, all the spaces within	2028	* covers all the spaces, so within that size, all the spaces within
2163	* the 3x3 area will be searched, just not in a predictable order.	2029	* the 3x3 area will be searched, just not in a predictable order.
2164	*/	2030	*/
		2031	void
2165	void get_search_arr(int *search_arr)	2032	get_search_arr (int *search_arr)
2166	{	2033	{
2167	int i;	2034	int i;
2168		2035
2169	for(i = 0; i < SIZEOFFREE; i++)	2036	for (i = 0; i < SIZEOFFREE; i++)
2170	{
2171	search_arr[i] = i;	2037	search_arr[i] = i;
2172	}
2173		2038
2174	permute(search_arr, 1, SIZEOFFREE1+1);	2039	permute (search_arr, 1, SIZEOFFREE1 + 1);
2175	permute(search_arr, SIZEOFFREE1+1, SIZEOFFREE2+1);	2040	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);
2176	permute(search_arr, SIZEOFFREE2+1, SIZEOFFREE);	2041	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);
2177	}	2042	}
2178		2043
2179	/*	2044	/*
2180	* find_dir(map, x, y, exclude) will search some close squares in the	2045	* find_dir(map, x, y, exclude) will search some close squares in the
2181	* given map at the given coordinates for live objects.	2046	* given map at the given coordinates for live objects.
…		…
2186	* Perhaps incorrectly, but I'm making the assumption that exclude	2051	* Perhaps incorrectly, but I'm making the assumption that exclude
2187	* is actually want is going to try and move there. We need this info	2052	* is actually want is going to try and move there. We need this info
2188	* because we have to know what movement the thing looking to move	2053	* because we have to know what movement the thing looking to move
2189	* there is capable of.	2054	* there is capable of.
2190	*/	2055	*/
2191		2056	int
2192	int find_dir(mapstruct *m, int x, int y, object *exclude) {	2057	find_dir (maptile *m, int x, int y, object *exclude)
		2058	{
2193	int i,max=SIZEOFFREE, mflags;	2059	int i, max = SIZEOFFREE, mflags;
		2060
2194	sint16 nx, ny;	2061	sint16 nx, ny;
2195	object *tmp;	2062	object *tmp;
2196	mapstruct *mp;	2063	maptile *mp;
		2064
2197	MoveType blocked, move_type;	2065	MoveType blocked, move_type;
2198		2066
2199	if (exclude && exclude->head) {	2067	if (exclude && exclude->head)
		2068	{
2200	exclude = exclude->head;	2069	exclude = exclude->head;
2201	move_type = exclude->move_type;	2070	move_type = exclude->move_type;
2202	} else {	2071	}
		2072	else
		2073	{
2203	/* If we don't have anything, presume it can use all movement types. */	2074	/* If we don't have anything, presume it can use all movement types. */
2204	move_type=MOVE_ALL;	2075	move_type = MOVE_ALL;
		2076	}
		2077
		2078	for (i = 1; i < max; i++)
2205	}	2079	{
2206
2207	for(i=1;i<max;i++) {
2208	mp = m;	2080	mp = m;
2209	nx = x + freearr_x[i];	2081	nx = x + freearr_x[i];
2210	ny = y + freearr_y[i];	2082	ny = y + freearr_y[i];
2211		2083
2212	mflags = get_map_flags(m, &mp, nx, ny, &nx, &ny);	2084	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);
		2085
2213	if (mflags & P_OUT_OF_MAP) {	2086	if (mflags & P_OUT_OF_MAP)
		2087	max = maxfree[i];
		2088	else
		2089	{
		2090	mapspace &ms = mp->at (nx, ny);
		2091
		2092	blocked = ms.move_block;
		2093
		2094	if ((move_type & blocked) == move_type)
2214	max = maxfree[i];	2095	max = maxfree[i];
2215	} else {
2216	blocked = GET_MAP_MOVE_BLOCK(mp, nx, ny);
2217
2218	if ((move_type & blocked) == move_type) {
2219	max=maxfree[i];
2220	} else if (mflags & P_IS_ALIVE) {	2096	else if (mflags & P_IS_ALIVE)
2221	for (tmp=GET_MAP_OB(mp,nx,ny); tmp!= NULL; tmp=tmp->above) {	2097	{
		2098	for (tmp = ms.bot; tmp; tmp = tmp->above)
2222	if ((QUERY_FLAG(tmp,FLAG_MONSTER) || tmp->type==PLAYER) &&	2099	if ((tmp->flag [FLAG_MONSTER] || tmp->type == PLAYER)
2223	(tmp != exclude ||(tmp->head && tmp->head != exclude))) {	2100	&& (tmp != exclude || (tmp->head && tmp->head != exclude)))
2224	break;	2101	break;
2225	}	2102
2226	}
2227	if(tmp) {	2103	if (tmp)
2228	return freedir[i];	2104	return freedir[i];
2229	}
2230	}	2105	}
2231	}	2106	}
2232	}	2107	}
		2108
2233	return 0;	2109	return 0;
2234	}	2110	}
2235		2111
2236	/*	2112	/*
2237	* distance(object 1, object 2) will return the square of the	2113	* distance(object 1, object 2) will return the square of the
2238	* distance between the two given objects.	2114	* distance between the two given objects.
2239	*/	2115	*/
2240		2116	int
2241	int distance(const object *ob1, const object *ob2) {	2117	distance (const object *ob1, const object *ob2)
2242	int i;	2118	{
2243	i= (ob1->x - ob2->x)*(ob1->x - ob2->x)+	2119	return (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);
2244	(ob1->y - ob2->y)*(ob1->y - ob2->y);
2245	return i;
2246	}	2120	}
2247		2121
2248	/*	2122	/*
2249	* find_dir_2(delta-x,delta-y) will return a direction in which	2123	* find_dir_2(delta-x,delta-y) will return a direction in which
2250	* an object which has subtracted the x and y coordinates of another	2124	* an object which has subtracted the x and y coordinates of another
2251	* object, needs to travel toward it.	2125	* object, needs to travel toward it.
2252	*/	2126	*/
2253		2127	int
2254	int find_dir_2(int x, int y) {	2128	find_dir_2 (int x, int y)
		2129	{
2255	int q;	2130	int q;
2256		2131
2257	if(y)	2132	if (y)
2258	q=x*100/y;	2133	q = x * 100 / y;
2259	else if (x)	2134	else if (x)
2260	q= -300*x;	2135	q = -300 * x;
2261	else	2136	else
2262	return 0;	2137	return 0;
2263		2138
2264	if(y>0) {	2139	if (y > 0)
		2140	{
2265	if(q < -242)	2141	if (q < -242)
2266	return 3 ;	2142	return 3;
2267	if (q < -41)	2143	if (q < -41)
2268	return 2 ;	2144	return 2;
2269	if (q < 41)	2145	if (q < 41)
2270	return 1 ;	2146	return 1;
2271	if (q < 242)	2147	if (q < 242)
2272	return 8 ;	2148	return 8;
2273	return 7 ;	2149	return 7;
2274	}	2150	}
2275		2151
2276	if (q < -242)	2152	if (q < -242)
2277	return 7 ;	2153	return 7;
2278	if (q < -41)	2154	if (q < -41)
2279	return 6 ;	2155	return 6;
2280	if (q < 41)	2156	if (q < 41)
2281	return 5 ;	2157	return 5;
2282	if (q < 242)	2158	if (q < 242)
2283	return 4 ;	2159	return 4;
2284		2160
2285	return 3 ;	2161	return 3;
2286	}	2162	}
2287		2163
2288	/*	2164	/*
2289	* absdir(int): Returns a number between 1 and 8, which represent	2165	* absdir(int): Returns a number between 1 and 8, which represent
2290	* the "absolute" direction of a number (it actually takes care of	2166	* the "absolute" direction of a number (it actually takes care of
2291	* "overflow" in previous calculations of a direction).	2167	* "overflow" in previous calculations of a direction).
2292	*/	2168	*/
2293		2169
		2170	int
2294	int absdir(int d) {	2171	absdir (int d)
2295	while(d<1) d+=8;	2172	{
2296	while(d>8) d-=8;	2173	while (d < 1)
		2174	d += 8;
		2175
		2176	while (d > 8)
		2177	d -= 8;
		2178
2297	return d;	2179	return d;
2298	}	2180	}
2299		2181
2300	/*	2182	/*
2301	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is	2183	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is
2302	* between two directions (which are expected to be absolute (see absdir())	2184	* between two directions (which are expected to be absolute (see absdir())
2303	*/	2185	*/
2304		2186
		2187	int
2305	int dirdiff(int dir1, int dir2) {	2188	dirdiff (int dir1, int dir2)
		2189	{
2306	int d;	2190	int d;
		2191
2307	d = abs(dir1 - dir2);	2192	d = abs (dir1 - dir2);
2308	if(d>4)	2193	if (d > 4)
2309	d = 8 - d;	2194	d = 8 - d;
		2195
2310	return d;	2196	return d;
2311	}	2197	}
2312		2198
2313	/* peterm:	2199	/* peterm:
2314	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.	2200	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.
…		…
2317	* This basically means that if direction is 15, then it could either go	2203	* This basically means that if direction is 15, then it could either go
2318	* direction 4, 14, or 16 to get back to where we are.	2204	* direction 4, 14, or 16 to get back to where we are.
2319	* Moved from spell_util.c to object.c with the other related direction	2205	* Moved from spell_util.c to object.c with the other related direction
2320	* functions.	2206	* functions.
2321	*/	2207	*/
2322
2323	int reduction_dir[SIZEOFFREE][3] = {	2208	int reduction_dir[SIZEOFFREE][3] = {
2324	{0,0,0}, /* 0 */	2209	{0, 0, 0}, /* 0 */
2325	{0,0,0}, /* 1 */	2210	{0, 0, 0}, /* 1 */
2326	{0,0,0}, /* 2 */	2211	{0, 0, 0}, /* 2 */
2327	{0,0,0}, /* 3 */	2212	{0, 0, 0}, /* 3 */
2328	{0,0,0}, /* 4 */	2213	{0, 0, 0}, /* 4 */
2329	{0,0,0}, /* 5 */	2214	{0, 0, 0}, /* 5 */
2330	{0,0,0}, /* 6 */	2215	{0, 0, 0}, /* 6 */
2331	{0,0,0}, /* 7 */	2216	{0, 0, 0}, /* 7 */
2332	{0,0,0}, /* 8 */	2217	{0, 0, 0}, /* 8 */
2333	{8,1,2}, /* 9 */	2218	{8, 1, 2}, /* 9 */
2334	{1,2,-1}, /* 10 */	2219	{1, 2, -1}, /* 10 */
2335	{2,10,12}, /* 11 */	2220	{2, 10, 12}, /* 11 */
2336	{2,3,-1}, /* 12 */	2221	{2, 3, -1}, /* 12 */
2337	{2,3,4}, /* 13 */	2222	{2, 3, 4}, /* 13 */
2338	{3,4,-1}, /* 14 */	2223	{3, 4, -1}, /* 14 */
2339	{4,14,16}, /* 15 */	2224	{4, 14, 16}, /* 15 */
2340	{5,4,-1}, /* 16 */	2225	{5, 4, -1}, /* 16 */
2341	{4,5,6}, /* 17 */	2226	{4, 5, 6}, /* 17 */
2342	{6,5,-1}, /* 18 */	2227	{6, 5, -1}, /* 18 */
2343	{6,20,18}, /* 19 */	2228	{6, 20, 18}, /* 19 */
2344	{7,6,-1}, /* 20 */	2229	{7, 6, -1}, /* 20 */
2345	{6,7,8}, /* 21 */	2230	{6, 7, 8}, /* 21 */
2346	{7,8,-1}, /* 22 */	2231	{7, 8, -1}, /* 22 */
2347	{8,22,24}, /* 23 */	2232	{8, 22, 24}, /* 23 */
2348	{8,1,-1}, /* 24 */	2233	{8, 1, -1}, /* 24 */
2349	{24,9,10}, /* 25 */	2234	{24, 9, 10}, /* 25 */
2350	{9,10,-1}, /* 26 */	2235	{9, 10, -1}, /* 26 */
2351	{10,11,-1}, /* 27 */	2236	{10, 11, -1}, /* 27 */
2352	{27,11,29}, /* 28 */	2237	{27, 11, 29}, /* 28 */
2353	{11,12,-1}, /* 29 */	2238	{11, 12, -1}, /* 29 */
2354	{12,13,-1}, /* 30 */	2239	{12, 13, -1}, /* 30 */
2355	{12,13,14}, /* 31 */	2240	{12, 13, 14}, /* 31 */
2356	{13,14,-1}, /* 32 */	2241	{13, 14, -1}, /* 32 */
2357	{14,15,-1}, /* 33 */	2242	{14, 15, -1}, /* 33 */
2358	{33,15,35}, /* 34 */	2243	{33, 15, 35}, /* 34 */
2359	{16,15,-1}, /* 35 */	2244	{16, 15, -1}, /* 35 */
2360	{17,16,-1}, /* 36 */	2245	{17, 16, -1}, /* 36 */
2361	{18,17,16}, /* 37 */	2246	{18, 17, 16}, /* 37 */
2362	{18,17,-1}, /* 38 */	2247	{18, 17, -1}, /* 38 */
2363	{18,19,-1}, /* 39 */	2248	{18, 19, -1}, /* 39 */
2364	{41,19,39}, /* 40 */	2249	{41, 19, 39}, /* 40 */
2365	{19,20,-1}, /* 41 */	2250	{19, 20, -1}, /* 41 */
2366	{20,21,-1}, /* 42 */	2251	{20, 21, -1}, /* 42 */
2367	{20,21,22}, /* 43 */	2252	{20, 21, 22}, /* 43 */
2368	{21,22,-1}, /* 44 */	2253	{21, 22, -1}, /* 44 */
2369	{23,22,-1}, /* 45 */	2254	{23, 22, -1}, /* 45 */
2370	{45,47,23}, /* 46 */	2255	{45, 47, 23}, /* 46 */
2371	{23,24,-1}, /* 47 */	2256	{23, 24, -1}, /* 47 */
2372	{24,9,-1}}; /* 48 */	2257	{24, 9, -1}
		2258	}; /* 48 */
2373		2259
2374	/* Recursive routine to step back and see if we can	2260	/* Recursive routine to step back and see if we can
2375	* find a path to that monster that we found. If not,	2261	* find a path to that monster that we found. If not,
2376	* we don't bother going toward it. Returns 1 if we	2262	* we don't bother going toward it. Returns 1 if we
2377	* can see a direct way to get it	2263	* can see a direct way to get it
2378	* Modified to be map tile aware -.MSW	2264	* Modified to be map tile aware -.MSW
2379	*/	2265	*/
2380		2266	int
2381
2382	int can_see_monsterP(mapstruct *m, int x, int y,int dir) {	2267	can_see_monsterP (maptile *m, int x, int y, int dir)
		2268	{
2383	sint16 dx, dy;	2269	sint16 dx, dy;
2384	int mflags;	2270	int mflags;
2385		2271
		2272	if (dir < 0)
2386	if(dir<0) return 0; /* exit condition: invalid direction */	2273	return 0; /* exit condition: invalid direction */
2387		2274
2388	dx = x + freearr_x[dir];	2275	dx = x + freearr_x[dir];
2389	dy = y + freearr_y[dir];	2276	dy = y + freearr_y[dir];
2390		2277
2391	mflags = get_map_flags(m, &m, dx, dy, &dx, &dy);	2278	mflags = get_map_flags (m, &m, dx, dy, &dx, &dy);
2392		2279
2393	/* This functional arguably was incorrect before - it was	2280	/* This functional arguably was incorrect before - it was
2394	* checking for P_WALL - that was basically seeing if	2281	* checking for P_WALL - that was basically seeing if
2395	* we could move to the monster - this is being more	2282	* we could move to the monster - this is being more
2396	* literal on if we can see it. To know if we can actually	2283	* literal on if we can see it. To know if we can actually
2397	* move to the monster, we'd need the monster passed in or	2284	* move to the monster, we'd need the monster passed in or
2398	* at least its move type.	2285	* at least its move type.
2399	*/	2286	*/
2400	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW)) return 0;	2287	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW))
		2288	return 0;
2401		2289
2402	/* yes, can see. */	2290	/* yes, can see. */
2403	if(dir < 9) return 1;	2291	if (dir < 9)
		2292	return 1;
		2293
2404	return can_see_monsterP(m, x, y, reduction_dir[dir][0]) |	2294	return can_see_monsterP (m, x, y, reduction_dir[dir][0])
2405	can_see_monsterP(m,x,y, reduction_dir[dir][1]) |	2295	| can_see_monsterP (m, x, y, reduction_dir[dir][1])
2406	can_see_monsterP(m,x,y, reduction_dir[dir][2]);	2296	| can_see_monsterP (m, x, y, reduction_dir[dir][2]);
2407	}	2297	}
2408		2298
2409
2410
2411	/*	2299	/*
2412	* can_pick(picker, item): finds out if an object is possible to be	2300	* can_pick(picker, item): finds out if an object is possible to be
2413	* picked up by the picker. Returnes 1 if it can be	2301	* picked up by the picker. Returnes 1 if it can be
2414	* picked up, otherwise 0.	2302	* picked up, otherwise 0.
2415	*	2303	*
…		…
2417	* core dumps if they do.	2305	* core dumps if they do.
2418	*	2306	*
2419	* Add a check so we can't pick up invisible objects (0.93.8)	2307	* Add a check so we can't pick up invisible objects (0.93.8)
2420	*/	2308	*/
2421		2309
		2310	int
2422	int can_pick(const object *who, const object *item) {	2311	can_pick (const object *who, const object *item)
		2312	{
2423	return /*QUERY_FLAG(who,FLAG_WIZ)||*/	2313	return /*QUERY_FLAG(who,FLAG_WIZ)|| */
2424	(item->weight>0&&!QUERY_FLAG(item,FLAG_NO_PICK)&&	2314	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&
2425	!QUERY_FLAG(item,FLAG_ALIVE)&&!item->invisible &&	2315	!QUERY_FLAG (item, FLAG_ALIVE) && !item->invisible && (who->type == PLAYER || item->weight < who->weight / 3));
2426	(who->type==PLAYER||item->weight<who->weight/3));
2427	}	2316	}
2428
2429		2317
2430	/*	2318	/*
2431	* create clone from object to another	2319	* create clone from object to another
2432	*/	2320	*/
		2321	object *
2433	object *object_create_clone (object *asrc) {	2322	object_create_clone (object *asrc)
		2323	{
2434	object *dst = NULL,*tmp,*src,*part,*prev, *item;	2324	object *dst = 0, *tmp, *src, *part, *prev, *item;
2435		2325
2436	if(!asrc) return NULL;	2326	if (!asrc)
		2327	return 0;
		2328
2437	src = asrc;	2329	src = asrc;
2438	if(src->head)	2330	if (src->head)
2439	src = src->head;	2331	src = src->head;
2440		2332
2441	prev = NULL;	2333	prev = 0;
2442	for(part = src; part; part = part->more) {	2334	for (part = src; part; part = part->more)
2443	tmp = get_object();	2335	{
2444	copy_object(part,tmp);	2336	tmp = part->clone ();
2445	tmp->x -= src->x;	2337	tmp->x -= src->x;
2446	tmp->y -= src->y;	2338	tmp->y -= src->y;
		2339
2447	if(!part->head) {	2340	if (!part->head)
		2341	{
2448	dst = tmp;	2342	dst = tmp;
2449	tmp->head = NULL;	2343	tmp->head = 0;
		2344	}
2450	} else {	2345	else
2451	tmp->head = dst;	2346	tmp->head = dst;
2452	}	2347
2453	tmp->more = NULL;	2348	tmp->more = 0;
		2349
2454	if(prev)	2350	if (prev)
2455	prev->more = tmp;	2351	prev->more = tmp;
		2352
2456	prev = tmp;	2353	prev = tmp;
2457	}	2354	}
2458	/*** copy inventory ***/	2355
2459	for(item = src->inv; item; item = item->below) {	2356	for (item = src->inv; item; item = item->below)
2460	(void) insert_ob_in_ob(object_create_clone(item),dst);	2357	insert_ob_in_ob (object_create_clone (item), dst);
2461	}
2462		2358
2463	return dst;	2359	return dst;
2464	}
2465
2466	/* return true if the object was destroyed, 0 otherwise */
2467	int was_destroyed (const object *op, tag_t old_tag)
2468	{
2469	/* checking for FLAG_FREED isn't necessary, but makes this function more
2470	* robust */
2471	return op->count != old_tag || QUERY_FLAG (op, FLAG_FREED);
2472	}	2360	}
2473		2361
2474	/* GROS - Creates an object using a string representing its content. */	2362	/* GROS - Creates an object using a string representing its content. */
2475	/* Basically, we save the content of the string to a temp file, then call */	2363	/* Basically, we save the content of the string to a temp file, then call */
2476	/* load_object on it. I admit it is a highly inefficient way to make things, */	2364	/* load_object on it. I admit it is a highly inefficient way to make things, */
2477	/* but it was simple to make and allows reusing the load_object function. */	2365	/* but it was simple to make and allows reusing the load_object function. */
2478	/* Remember not to use load_object_str in a time-critical situation. */	2366	/* Remember not to use load_object_str in a time-critical situation. */
2479	/* Also remember that multiparts objects are not supported for now. */	2367	/* Also remember that multiparts objects are not supported for now. */
2480		2368	object *
2481	object* load_object_str(const char *obstr)	2369	load_object_str (const char *obstr)
2482	{	2370	{
2483	object *op;	2371	object *op;
2484	char filename[MAX_BUF];	2372	char filename[MAX_BUF];
		2373
2485	sprintf(filename,"%s/cfloadobstr2044",settings.tmpdir);	2374	sprintf (filename, "%s/cfloadobstr2044", settings.tmpdir);
2486		2375
2487	FILE *tempfile=fopen(filename,"w");	2376	FILE *tempfile = fopen (filename, "w");
		2377
2488	if (tempfile == NULL)	2378	if (tempfile == NULL)
2489	{	2379	{
2490	LOG(llevError,"Error - Unable to access load object temp file\n");	2380	LOG (llevError, "Error - Unable to access load object temp file\n");
2491	return NULL;	2381	return NULL;
2492	};	2382	}
		2383
2493	fprintf(tempfile,obstr);	2384	fprintf (tempfile, obstr);
2494	fclose(tempfile);	2385	fclose (tempfile);
2495		2386
2496	op=get_object();	2387	op = object::create ();
2497		2388
2498	object_thawer thawer (filename);	2389	object_thawer thawer (filename);
		2390
2499	if (thawer)	2391	if (thawer)
2500	load_object(thawer,op,LO_NEWFILE,0);	2392	load_object (thawer, op, 0);
		2393
2501	LOG(llevDebug," load str completed, object=%s\n", &op->name);	2394	LOG (llevDebug, " load str completed, object=%s\n", &op->name);
2502	CLEAR_FLAG(op,FLAG_REMOVED);	2395	CLEAR_FLAG (op, FLAG_REMOVED);
2503		2396
2504	return op;	2397	return op;
2505	}	2398	}
2506		2399
2507	/* This returns the first object in who's inventory that	2400	/* This returns the first object in who's inventory that
2508	* has the same type and subtype match.	2401	* has the same type and subtype match.
2509	* returns NULL if no match.	2402	* returns NULL if no match.
2510	*/	2403	*/
		2404	object *
2511	object *find_obj_by_type_subtype(const object *who, int type, int subtype)	2405	find_obj_by_type_subtype (const object *who, int type, int subtype)
2512	{	2406	{
2513	object *tmp;
2514
2515	for (tmp=who->inv; tmp; tmp=tmp->below)	2407	for (object *tmp = who->inv; tmp; tmp = tmp->below)
2516	if (tmp->type == type && tmp->subtype == subtype) return tmp;	2408	if (tmp->type == type && tmp->subtype == subtype)
		2409	return tmp;
2517		2410
2518	return NULL;	2411	return 0;
2519	}	2412	}
2520		2413
2521	/* If ob has a field named key, return the link from the list,	2414	/* If ob has a field named key, return the link from the list,
2522	* otherwise return NULL.	2415	* otherwise return NULL.
2523	*	2416	*
2524	* key must be a passed in shared string - otherwise, this won't	2417	* key must be a passed in shared string - otherwise, this won't
2525	* do the desired thing.	2418	* do the desired thing.
2526	*/	2419	*/
		2420	key_value *
2527	key_value * get_ob_key_link(const object * ob, const char * key) {	2421	get_ob_key_link (const object *ob, const char *key)
2528	key_value * link;	2422	{
2529
2530	for (link = ob->key_values; link != NULL; link = link->next) {	2423	for (key_value *link = ob->key_values; link; link = link->next)
2531	if (link->key == key) {	2424	if (link->key == key)
2532	return link;	2425	return link;
2533	}	2426
2534	}	2427	return 0;
2535		2428	}
2536	return NULL;
2537	}
2538		2429
2539	/*	2430	/*
2540	* Returns the value of op has an extra_field for key, or NULL.	2431	* Returns the value of op has an extra_field for key, or NULL.
2541	*	2432	*
2542	* The argument doesn't need to be a shared string.	2433	* The argument doesn't need to be a shared string.
2543	*	2434	*
2544	* The returned string is shared.	2435	* The returned string is shared.
2545	*/	2436	*/
		2437	const char *
2546	const char * get_ob_key_value(const object * op, const char * const key) {	2438	get_ob_key_value (const object *op, const char *const key)
		2439	{
2547	key_value * link;	2440	key_value *link;
2548	const char * canonical_key;	2441	shstr_cmp canonical_key (key);
		2442
		2443	if (!canonical_key)
2549		2444	{
2550	canonical_key = shstr::find (key);
2551
2552	if (canonical_key == NULL) {
2553	/* 1. There being a field named key on any object	2445	/* 1. There being a field named key on any object
2554	* implies there'd be a shared string to find.	2446	* implies there'd be a shared string to find.
2555	* 2. Since there isn't, no object has this field.	2447	* 2. Since there isn't, no object has this field.
2556	* 3. Therefore, *this* object doesn't have this field.	2448	* 3. Therefore, *this* object doesn't have this field.
2557	*/	2449	*/
2558	return NULL;	2450	return 0;
2559	}	2451	}
2560		2452
2561	/* This is copied from get_ob_key_link() above -	2453	/* This is copied from get_ob_key_link() above -
2562	* only 4 lines, and saves the function call overhead.	2454	* only 4 lines, and saves the function call overhead.
2563	*/	2455	*/
2564	for (link = op->key_values; link != NULL; link = link->next) {	2456	for (link = op->key_values; link; link = link->next)
2565	if (link->key == canonical_key) {	2457	if (link->key == canonical_key)
2566	return link->value;	2458	return link->value;
2567	}	2459
2568	}	2460	return 0;
2569	return NULL;
2570	}	2461	}
2571		2462
2572		2463
2573	/*	2464	/*
2574	* Updates the canonical_key in op to value.	2465	* Updates the canonical_key in op to value.
…		…
2578	* Unless add_key is TRUE, it won't add fields, only change the value of existing	2469	* Unless add_key is TRUE, it won't add fields, only change the value of existing
2579	* keys.	2470	* keys.
2580	*	2471	*
2581	* Returns TRUE on success.	2472	* Returns TRUE on success.
2582	*/	2473	*/
		2474	int
2583	int set_ob_key_value_s(object * op, const shstr &canonical_key, const char * value, int add_key) {	2475	set_ob_key_value_s (object *op, const shstr & canonical_key, const char *value, int add_key)
		2476	{
2584	key_value * field = NULL, *last=NULL;	2477	key_value *field = NULL, *last = NULL;
2585		2478
2586	for (field=op->key_values; field != NULL; field=field->next) {	2479	for (field = op->key_values; field != NULL; field = field->next)
		2480	{
2587	if (field->key != canonical_key) {	2481	if (field->key != canonical_key)
		2482	{
2588	last = field;	2483	last = field;
2589	continue;	2484	continue;
2590	}	2485	}
2591		2486
2592	if (value)	2487	if (value)
2593	field->value = value;	2488	field->value = value;
2594	else {	2489	else
		2490	{
2595	/* Basically, if the archetype has this key set,	2491	/* Basically, if the archetype has this key set,
2596	* we need to store the null value so when we save	2492	* we need to store the null value so when we save
2597	* it, we save the empty value so that when we load,	2493	* it, we save the empty value so that when we load,
2598	* we get this value back again.	2494	* we get this value back again.
2599	*/	2495	*/
2600	if (get_ob_key_link (&op->arch->clone, canonical_key))	2496	if (get_ob_key_link (&op->arch->clone, canonical_key))
2601	field->value = 0;	2497	field->value = 0;
		2498	else
		2499	{
		2500	if (last)
		2501	last->next = field->next;
2602	else	2502	else
2603	{
2604	if (last) last->next = field->next;
2605	else op->key_values = field->next;	2503	op->key_values = field->next;
2606		2504
2607	delete field;	2505	delete field;
2608	}	2506	}
2609	}	2507	}
2610	return TRUE;	2508	return TRUE;
2611	}	2509	}
2612	/* IF we get here, key doesn't exist */	2510	/* IF we get here, key doesn't exist */
2613		2511
2614	/* No field, we'll have to add it. */	2512	/* No field, we'll have to add it. */
2615		2513
2616	if (!add_key) {	2514	if (!add_key)
2617	return FALSE;	2515	return FALSE;
2618	}	2516
2619	/* There isn't any good reason to store a null	2517	/* There isn't any good reason to store a null
2620	* value in the key/value list. If the archetype has	2518	* value in the key/value list. If the archetype has
2621	* this key, then we should also have it, so shouldn't	2519	* this key, then we should also have it, so shouldn't
2622	* be here. If user wants to store empty strings,	2520	* be here. If user wants to store empty strings,
2623	* should pass in ""	2521	* should pass in ""
2624	*/	2522	*/
2625	if (value == NULL) return TRUE;	2523	if (value == NULL)
2626
2627	field = new key_value;
2628
2629	field->key = canonical_key;
2630	field->value = value;
2631	/* Usual prepend-addition. */
2632	field->next = op->key_values;
2633	op->key_values = field;
2634
2635	return TRUE;	2524	return TRUE;
		2525
		2526	field = new key_value;
		2527
		2528	field->key = canonical_key;
		2529	field->value = value;
		2530	/* Usual prepend-addition. */
		2531	field->next = op->key_values;
		2532	op->key_values = field;
		2533
		2534	return TRUE;
2636	}	2535	}
2637		2536
2638	/*	2537	/*
2639	* Updates the key in op to value.	2538	* Updates the key in op to value.
2640	*	2539	*
…		…
2642	* and not add new ones.	2541	* and not add new ones.
2643	* In general, should be little reason FALSE is ever passed in for add_key	2542	* In general, should be little reason FALSE is ever passed in for add_key
2644	*	2543	*
2645	* Returns TRUE on success.	2544	* Returns TRUE on success.
2646	*/	2545	*/
		2546	int
2647	int set_ob_key_value(object * op, const char *key, const char * value, int add_key)	2547	set_ob_key_value (object *op, const char *key, const char *value, int add_key)
2648	{	2548	{
2649	shstr key_ (key);	2549	shstr key_ (key);
		2550
2650	return set_ob_key_value_s (op, key_, value, add_key);	2551	return set_ob_key_value_s (op, key_, value, add_key);
2651	}	2552	}
		2553
		2554	object::depth_iterator::depth_iterator (object *container)
		2555	: iterator_base (container)
		2556	{
		2557	while (item->inv)
		2558	item = item->inv;
		2559	}
		2560
		2561	void
		2562	object::depth_iterator::next ()
		2563	{
		2564	if (item->below)
		2565	{
		2566	item = item->below;
		2567
		2568	while (item->inv)
		2569	item = item->inv;
		2570	}
		2571	else
		2572	item = item->env;
		2573	}
		2574
		2575
		2576	const char *
		2577	object::flag_desc (char *desc, int len) const
		2578	{
		2579	char *p = desc;
		2580	bool first = true;
		2581
		2582	*p = 0;
		2583
		2584	for (int i = 0; i < NUM_FLAGS; i++)
		2585	{
		2586	if (len <= 10) // magic constant!
		2587	{
		2588	snprintf (p, len, ",...");
		2589	break;
		2590	}
		2591
		2592	if (flag [i])
		2593	{
		2594	int cnt = snprintf (p, len, "%s%d", first ? "" : ",", i);
		2595	len -= cnt;
		2596	p += cnt;
		2597	first = false;
		2598	}
		2599	}
		2600
		2601	return desc;
		2602	}
		2603
		2604	// return a suitable string describing an object in enough detail to find it
		2605	const char *
		2606	object::debug_desc (char *info) const
		2607	{
		2608	char flagdesc[512];
		2609	char info2[256 * 4];
		2610	char *p = info;
		2611
		2612	p += snprintf (p, 512, "{cnt:%d,uuid:<1,%" PRIx64 ">,name:\"%s%s%s\",flags:[%s],type:%d}",
		2613	count, uuid.seq,
		2614	&name,
		2615	title ? "\",title:" : "",
		2616	title ? (const char *)title : "",
		2617	flag_desc (flagdesc, 512), type);
		2618
		2619	if (env)
		2620	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));
		2621
		2622	if (map)
		2623	p += snprintf (p, 256, "(on %s@%d+%d)", &map->path, x, y);
		2624
		2625	return info;
		2626	}
		2627
		2628	const char *
		2629	object::debug_desc () const
		2630	{
		2631	static char info[256 * 4];
		2632	return debug_desc (info);
		2633	}
		2634

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