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Comparing deliantra/server/common/object.C (file contents):
Revision 1.10 by root, Thu Aug 31 17:54:14 2006 UTC vs.
Revision 1.111 by root, Mon Jan 8 01:19:02 2007 UTC

1	/*
2	* static char *rcsid_object_c =
3	* "$Id: object.C,v 1.10 2006/08/31 17:54:14 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=add_string(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	free_string(name);	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	key_value * i;	457	{
524	key_value * next = NULL;	458	for (key_value *i = op->key_values; i != 0;)
525		459	{
526	if (op->key_values == NULL) return;	460	key_value *next = i->next;
		461	delete i;
		462
		463	i = next;
527		464	}
528	for (i = op->key_values; i != NULL; i = next) {	465
529	/* Store next *first*. */
530	next = i->next;
531
532	if (i->key) FREE_AND_CLEAR_STR(i->key);
533	if (i->value) FREE_AND_CLEAR_STR(i->value);
534	i->next = NULL;
535	free(i);
536	}
537
538	op->key_values = NULL;	466	op->key_values = 0;
539	}	467	}
540		468
541
542	/*	469	/*
543	* clear_object() frees everything allocated by an object, and also
544	* clears all variables and flags to default settings.
545	*/
546
547	void clear_object(object *op) {
548	op->clear ();
549
550	event *evt;
551	event *evt2;
552
553	/* redo this to be simpler/more efficient. Was also seeing
554	* crashes in the old code. Move this to the top - am
555	* seeing periodic crashes in this code, and would like to have
556	* as much info available as possible (eg, object name).
557	*/
558	for (evt = op->events; evt; evt=evt2) {
559	evt2 = evt->next;
560
561	if (evt->hook != NULL) FREE_AND_CLEAR_STR(evt->hook);
562	if (evt->plugin != NULL) FREE_AND_CLEAR_STR(evt->plugin);
563	if (evt->options != NULL) FREE_AND_CLEAR_STR(evt->options);
564
565	free(evt);
566	}
567	op->events = NULL;
568
569	free_key_values(op);
570
571	/* the memset will clear all these values for us, but we need
572	* to reduce the refcount on them.
573	*/
574	if (op->name!=NULL) FREE_AND_CLEAR_STR(op->name);
575	if (op->name_pl!=NULL) FREE_AND_CLEAR_STR(op->name_pl);
576	if (op->title != NULL) FREE_AND_CLEAR_STR(op->title);
577	if (op->race!=NULL) FREE_AND_CLEAR_STR(op->race);
578	if (op->slaying!=NULL) FREE_AND_CLEAR_STR(op->slaying);
579	if (op->skill!=NULL) FREE_AND_CLEAR_STR(op->skill);
580	if (op->msg!=NULL) FREE_AND_CLEAR_STR(op->msg);
581	if (op->lore!=NULL) FREE_AND_CLEAR_STR(op->lore);
582	if (op->materialname!= NULL) FREE_AND_CLEAR_STR(op->materialname);
583
584
585	memset((void*)op, 0, sizeof (object_special));
586	/* Below here, we clear things that are not done by the memset,
587	* or set default values that are not zero.
588	*/
589	/* This is more or less true */
590	SET_FLAG(op, FLAG_REMOVED);
591
592
593	op->contr = NULL;
594	op->below=NULL;
595	op->above=NULL;
596	op->inv=NULL;
597	op->events=NULL;
598	op->container=NULL;
599	op->env=NULL;
600	op->more=NULL;
601	op->head=NULL;
602	op->map=NULL;
603	op->refcount=0;
604	op->active_next = NULL;
605	op->active_prev = NULL;
606	/* What is not cleared is next, prev, and count */
607
608	op->expmul=1.0;
609	op->face = blank_face;
610	op->attacked_by_count = (tag_t) -1;
611	if (settings.casting_time)
612	op->casting_time = -1;
613
614	}
615
616	/*
617	* copy object first frees everything allocated by the second object,	470	* copy_to first frees everything allocated by the dst object,
618	* and then copies the contends of the first object into the second	471	* and then copies the contents of itself into the second
619	* object, allocating what needs to be allocated. Basically, any	472	* object, allocating what needs to be allocated. Basically, any
620	* 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,
621	* 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
622	* will point at garbage.	475	* will point at garbage.
623	*/	476	*/
		477	void
		478	object::copy_to (object *dst)
		479	{
		480	bool is_freed = QUERY_FLAG (dst, FLAG_FREED);
		481	bool is_removed = QUERY_FLAG (dst, FLAG_REMOVED);
624		482
625	void copy_object(object *op2, object *op) {	483	*(object_copy *)dst = *this;
626	int is_freed=QUERY_FLAG(op,FLAG_FREED),is_removed=QUERY_FLAG(op,FLAG_REMOVED);
627	event *evt, *evt2, *evt_new;
628		484
629	op->clear ();	485	if (is_freed)
		486	SET_FLAG (dst, FLAG_FREED);
630		487
631	/* Decrement the refcounts, but don't bother zeroing the fields;	488	if (is_removed)
632	they'll be overwritten by memcpy. */	489	SET_FLAG (dst, FLAG_REMOVED);
633	if(op->name!=NULL) free_string(op->name);
634	if(op->name_pl!=NULL) free_string(op->name_pl);
635	if(op->title!=NULL) free_string(op->title);
636	if(op->race!=NULL) free_string(op->race);
637	if(op->slaying!=NULL) free_string(op->slaying);
638	if(op->skill!=NULL) free_string(op->skill);
639	if(op->msg!=NULL) free_string(op->msg);
640	if(op->lore!=NULL) free_string(op->lore);
641	if(op->materialname != NULL) free_string(op->materialname);
642	if(op->custom_name != NULL) free_string(op->custom_name);
643		490
644	/* Basically, same code as from clear_object() */	491	if (speed < 0)
645	for (evt = op->events; evt; evt=evt2) {
646	evt2 = evt->next;
647
648	if (evt->hook != NULL) FREE_AND_CLEAR_STR(evt->hook);
649	if (evt->plugin != NULL) FREE_AND_CLEAR_STR(evt->plugin);
650	if (evt->options != NULL) FREE_AND_CLEAR_STR(evt->options);
651
652	free(evt);
653	}
654	op->events = NULL;
655
656	free_key_values(op);
657
658	*(object_special *)op = *(object_special *)op2;
659	op2->clone (op);
660
661	if(is_freed) SET_FLAG(op,FLAG_FREED);
662	if(is_removed) SET_FLAG(op,FLAG_REMOVED);
663	if(op->name!=NULL) add_refcount(op->name);
664	if(op->name_pl!=NULL) add_refcount(op->name_pl);
665	if(op->title!=NULL) add_refcount(op->title);
666	if(op->race!=NULL) add_refcount(op->race);
667	if(op->slaying!=NULL) add_refcount(op->slaying);
668	if(op->skill!=NULL) add_refcount(op->skill);
669	if(op->lore!=NULL) add_refcount(op->lore);
670	if(op->msg!=NULL) add_refcount(op->msg);
671	if(op->custom_name!=NULL) add_refcount(op->custom_name);
672	if (op->materialname != NULL) add_refcount(op->materialname);
673
674	if((op2->speed<0) && !editor)
675	op->speed_left=op2->speed_left-RANDOM()%200/100.0;	492	dst->speed_left = speed_left - RANDOM () % 200 / 100.0;
676		493
677	/* Copy over event information */
678	evt2 = NULL;
679	for (evt = op2->events; evt; evt=evt->next) {
680	evt_new = (event *) malloc(sizeof(event));
681	memcpy(evt_new, evt, sizeof(event));
682	if (evt_new->hook) add_refcount(evt_new->hook);
683	if (evt_new->plugin) add_refcount(evt_new->plugin);
684	if (evt_new->options) add_refcount(evt_new->options);
685	evt_new->next = NULL;
686
687	/* Try to be a little clever here, and store away the
688	* last event we copied, so that its simpler to update the
689	* pointer.
690	*/
691	if (evt2)
692	evt2->next = evt_new;
693	else
694	op->events = evt_new;
695
696	evt2 = evt_new;
697	}
698	/* Copy over key_values, if any. */	494	/* Copy over key_values, if any. */
699	if (op2->key_values != NULL) {	495	if (key_values)
		496	{
700	key_value * tail = NULL;	497	key_value *tail = 0;
701	key_value * i;	498	key_value *i;
702		499
703	op->key_values = NULL;	500	dst->key_values = 0;
704		501
705	for (i = op2->key_values; i != NULL; i = i->next) {	502	for (i = key_values; i; i = i->next)
706	key_value * new_link = (key_value *) malloc(sizeof(key_value));	503	{
		504	key_value *new_link = new key_value;
707		505
708	new_link->next = NULL;	506	new_link->next = 0;
709	new_link->key = add_refcount(i->key);	507	new_link->key = i->key;
710	if (i->value)
711	new_link->value = add_refcount(i->value);	508	new_link->value = i->value;
712	else
713	new_link->value = NULL;
714		509
715	/* Try and be clever here, too. */	510	/* Try and be clever here, too. */
716	if (op->key_values == NULL) {	511	if (!dst->key_values)
		512	{
717	op->key_values = new_link;	513	dst->key_values = new_link;
718	tail = new_link;	514	tail = new_link;
719	} else {
720	tail->next = new_link;
721	tail = new_link;
722	}	515	}
		516	else
		517	{
		518	tail->next = new_link;
		519	tail = new_link;
723	}	520	}
724	}	521	}
725
726	update_ob_speed(op);
727	}
728
729	/*
730	* expand_objects() allocates more objects for the list of unused objects.
731	* It is called from get_object() if the unused list is empty.
732	*/
733
734	void expand_objects(void) {
735	int i;
736	object *obj;
737	obj = (object *) CALLOC(OBJ_EXPAND,sizeof(object));
738
739	if(obj==NULL)
740	fatal(OUT_OF_MEMORY);
741	free_objects=obj;
742	obj[0].prev=NULL;
743	obj[0].next= &obj[1],
744	SET_FLAG(&(obj[0]), FLAG_REMOVED);
745	SET_FLAG(&(obj[0]), FLAG_FREED);
746
747	for(i=1;i<OBJ_EXPAND-1;i++) {
748	obj[i].next= &obj[i+1],
749	obj[i].prev= &obj[i-1],
750	SET_FLAG(&(obj[i]), FLAG_REMOVED);
751	SET_FLAG(&(obj[i]), FLAG_FREED);
752	}	522	}
753	obj[OBJ_EXPAND-1].prev= &obj[OBJ_EXPAND-2],
754	obj[OBJ_EXPAND-1].next=NULL,
755	SET_FLAG(&(obj[OBJ_EXPAND-1]), FLAG_REMOVED);
756	SET_FLAG(&(obj[OBJ_EXPAND-1]), FLAG_FREED);
757		523
758	nrofallocobjects += OBJ_EXPAND;	524	dst->set_speed (dst->speed);
759	nroffreeobjects += OBJ_EXPAND;
760	}	525	}
761		526
762	/*
763	* get_object() grabs an object from the list of unused objects, makes
764	* sure it is initialised, and returns it.
765	* If there are no free objects, expand_objects() is called to get more.
766	*/
767
768	object *get_object(void) {
769	object *op;	527	object *
770		528	object::clone ()
771	if(free_objects==NULL) {	529	{
772	expand_objects();	530	object *neu = create ();
773	}	531	copy_to (neu);
774	op=free_objects;
775	#ifdef MEMORY_DEBUG
776	/* The idea is hopefully by doing a realloc, the memory
777	* debugging program will now use the current stack trace to
778	* report leaks.
779	*/
780	op = realloc(op, sizeof(object));
781	SET_FLAG(op, FLAG_REMOVED);
782	SET_FLAG(op, FLAG_FREED);
783	#endif
784
785	if(!QUERY_FLAG(op,FLAG_FREED)) {
786	LOG(llevError,"Fatal: Getting busy object.\n");
787	}
788	free_objects=op->next;
789	if(free_objects!=NULL)
790	free_objects->prev=NULL;
791	op->count= ++ob_count;
792	op->name=NULL;
793	op->name_pl=NULL;
794	op->title=NULL;
795	op->race=NULL;
796	op->slaying=NULL;
797	op->skill = NULL;
798	op->lore=NULL;
799	op->msg=NULL;
800	op->materialname=NULL;
801	op->next=objects;
802	op->prev=NULL;
803	op->active_next = NULL;
804	op->active_prev = NULL;
805	if(objects!=NULL)
806	objects->prev=op;
807	objects=op;
808	clear_object(op);
809	SET_FLAG(op,FLAG_REMOVED);
810	nroffreeobjects--;
811	return op;	532	return neu;
812	}	533	}
813		534
814	/*	535	/*
815	* 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
816	* 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
817	* 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.
818	*/	539	*/
819		540	void
820	void update_turn_face(object *op) {	541	update_turn_face (object *op)
		542	{
821	if(!QUERY_FLAG(op,FLAG_IS_TURNABLE)||op->arch==NULL)	543	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || !op->arch)
822	return;	544	return;
		545
823	SET_ANIMATION(op, op->direction);	546	SET_ANIMATION (op, op->direction);
824	update_object(op,UP_OBJ_FACE);	547	update_object (op, UP_OBJ_FACE);
825	}	548	}
826		549
827	/*	550	/*
828	* 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
829	* 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.
830	* 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.
831	*/	554	*/
832		555	void
833	void update_ob_speed(object *op) {	556	object::set_speed (float speed)
834	extern int arch_init;	557	{
835		558	if (flag [FLAG_FREED] && speed)
836	/* No reason putting the archetypes objects on the speed list,	559	{
837	* since they never really need to be updated.
838	*/
839
840	if (QUERY_FLAG(op, FLAG_FREED) && op->speed) {
841	LOG(llevError,"Object %s is freed but has speed.\n", op->name);	560	LOG (llevError, "Object %s is freed but has speed.\n", &name);
842	#ifdef MANY_CORES
843	abort();
844	#else
845	op->speed = 0;	561	speed = 0;
846	#endif
847	}	562	}
848	if (arch_init) {
849	return;
850	}
851	if (FABS(op->speed)>MIN_ACTIVE_SPEED) {
852	/* If already on active list, don't do anything */
853	if (op->active_next || op->active_prev || op==active_objects)
854	return;
855		563
856	/* process_events() expects us to insert the object at the beginning	564	this->speed = speed;
857	* of the list. */	565
858	op->active_next = active_objects;	566	if (has_active_speed ())
859	if (op->active_next!=NULL)	567	activate ();
860	op->active_next->active_prev = op;
861	active_objects = op;
862	}
863	else {	568	else
864	/* If not on the active list, nothing needs to be done */	569	deactivate ();
865	if (!op->active_next && !op->active_prev && op!=active_objects)
866	return;
867
868	if (op->active_prev==NULL) {
869	active_objects = op->active_next;
870	if (op->active_next!=NULL)
871	op->active_next->active_prev = NULL;
872	}
873	else {
874	op->active_prev->active_next = op->active_next;
875	if (op->active_next)
876	op->active_next->active_prev = op->active_prev;
877	}
878	op->active_next = NULL;
879	op->active_prev = NULL;
880	}
881	}	570	}
882		571
883	/* This function removes object 'op' from the list of active
884	* objects.
885	* This should only be used for style maps or other such
886	* reference maps where you don't want an object that isn't
887	* in play chewing up cpu time getting processed.
888	* The reverse of this is to call update_ob_speed, which
889	* will do the right thing based on the speed of the object.
890	*/
891	void remove_from_active_list(object *op)
892	{
893	/* If not on the active list, nothing needs to be done */
894	if (!op->active_next && !op->active_prev && op!=active_objects)
895	return;
896
897	if (op->active_prev==NULL) {
898	active_objects = op->active_next;
899	if (op->active_next!=NULL)
900	op->active_next->active_prev = NULL;
901	}
902	else {
903	op->active_prev->active_next = op->active_next;
904	if (op->active_next)
905	op->active_next->active_prev = op->active_prev;
906	}
907	op->active_next = NULL;
908	op->active_prev = NULL;
909	}
910
911	/*	572	/*
912	* update_object() updates the array which represents the map.	573	* update_object() updates the the map.
913	* It takes into account invisible objects (and represent squares covered	574	* It takes into account invisible objects (and represent squares covered
914	* 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
915	* invisible object, etc...)	576	* invisible object, etc...)
916	* 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
917	* 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
918	* updating that window, though, since update_object() is called _often_)	579	* updating that window, though, since update_object() is called _often_)
919	*	580	*
920	* 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.
921	* For example, if the only thing that has changed is the face (due to
922	* an animation), we don't need to call update_position until that actually
923	* comes into view of a player. OTOH, many other things, like addition/removal
924	* of walls or living creatures may need us to update the flags now.
925	* current action are:	582	* current action are:
926	* UP_OBJ_INSERT: op was inserted	583	* UP_OBJ_INSERT: op was inserted
927	* UP_OBJ_REMOVE: op was removed	584	* UP_OBJ_REMOVE: op was removed
928	* 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
929	* 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.
930	* UP_OBJ_FACE: only the objects face has changed.	587	* UP_OBJ_FACE: only the objects face has changed.
931	*/	588	*/
932		589	void
933	void update_object(object *op, int action) {	590	update_object (object *op, int action)
934	int update_now=0, flags;	591	{
935	MoveType move_on, move_off, move_block, move_slow;	592	MoveType move_on, move_off, move_block, move_slow;
936		593
937	if (op == NULL) {	594	if (op == NULL)
		595	{
938	/* this should never happen */	596	/* this should never happen */
939	LOG(llevDebug,"update_object() called for NULL object.\n");	597	LOG (llevDebug, "update_object() called for NULL object.\n");
940	return;	598	return;
941	}
942		599	}
943	if(op->env!=NULL) {	600
		601	if (op->env)
		602	{
944	/* Animation is currently handled by client, so nothing	603	/* Animation is currently handled by client, so nothing
945	* to do in this case.	604	* to do in this case.
946	*/	605	*/
947	return;	606	return;
948	}	607	}
949		608
950	/* 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
951	* going to get freed anyways.	610	* going to get freed anyways.
952	*/	611	*/
953	if (!op->map || op->map->in_memory == MAP_SAVING) return;	612	if (!op->map || op->map->in_memory == MAP_SAVING)
954		613	return;
		614
955	/* make sure the object is within map boundaries */	615	/* make sure the object is within map boundaries */
956	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)
957	op->y < 0 || op->y >= MAP_HEIGHT(op->map)) {	617	{
958	LOG(llevError,"update_object() called for object out of map!\n");	618	LOG (llevError, "update_object() called for object out of map!\n");
959	#ifdef MANY_CORES	619	#ifdef MANY_CORES
960	abort();	620	abort ();
961	#endif	621	#endif
962	return;	622	return;
963	}
964		623	}
965	flags = GET_MAP_FLAGS(op->map, op->x, op->y);
966	SET_MAP_FLAGS(op->map, op->x, op->y, flags | P_NEED_UPDATE);
967	move_slow = GET_MAP_MOVE_SLOW(op->map, op->x, op->y);
968	move_on = GET_MAP_MOVE_ON(op->map, op->x, op->y);
969	move_block = GET_MAP_MOVE_BLOCK(op->map, op->x, op->y);
970	move_off = GET_MAP_MOVE_OFF(op->map, op->x, op->y);
971		624
		625	mapspace &m = op->ms ();
		626
		627	if (!(m.flags_ & P_UPTODATE))
		628	/* nop */;
972	if (action == UP_OBJ_INSERT) {	629	else if (action == UP_OBJ_INSERT)
		630	{
		631	// this is likely overkill, TODO: revisit (schmorp)
973	if (QUERY_FLAG(op, FLAG_BLOCKSVIEW) && !(flags & P_BLOCKSVIEW))	632	if ((QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(m.flags_ & P_BLOCKSVIEW))
974	update_now=1;
975
976	if (QUERY_FLAG(op, FLAG_NO_MAGIC) && !(flags & P_NO_MAGIC))	633	|| (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(m.flags_ & P_NO_MAGIC))
977	update_now=1;	634	|| (op->type == PLAYER && !(m.flags_ & P_PLAYER))
978		635	|| (op->type == SAFE_GROUND && !(m.flags_ & P_SAFE))
		636	|| (QUERY_FLAG (op, FLAG_ALIVE) && !(m.flags_ & P_IS_ALIVE))
979	if (QUERY_FLAG(op, FLAG_DAMNED) && !(flags & P_NO_CLERIC))	637	|| (QUERY_FLAG (op, FLAG_DAMNED) && !(m.flags_ & P_NO_CLERIC))
980	update_now=1;	638	|| (m.move_on | op->move_on ) != m.move_on
981
982	if (QUERY_FLAG(op, FLAG_ALIVE) && !(flags & P_IS_ALIVE))
983	update_now=1;
984
985	if ((move_on | op->move_on) != move_on) update_now=1;
986	if ((move_off | op->move_off) != move_off) update_now=1;	639	|| (m.move_off | op->move_off ) != m.move_off
		640	|| (m.move_slow | op->move_slow) != m.move_slow
987	/* 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
988	* to have move_allow right now.	642	* to have move_allow right now.
989	*/	643	*/
990	if (((move_block | op->move_block) & ~op->move_allow) != move_block)	644	|| ((m.move_block | op->move_block) & ~op->move_allow) != m.move_block
991	update_now=1;	645	|| 1) // the above is not strong enough a test to skip updating. los maybe? TODO (Schmorp)
992	if ((move_slow | op->move_slow) != move_slow) update_now=1;	646	m.flags_ = 0;
993	}	647	}
994	/* if the object is being removed, we can't make intelligent	648	/* if the object is being removed, we can't make intelligent
995	* decisions, because remove_ob can't really pass the object	649	* decisions, because remove_ob can't really pass the object
996	* that is being removed.	650	* that is being removed.
997	*/	651	*/
998	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE) {	652	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)
999	update_now=1;	653	m.flags_ = 0;
1000	} else if (action == UP_OBJ_FACE) {	654	else if (action == UP_OBJ_FACE)
1001	/* Nothing to do for that case */	655	/* Nothing to do for that case */ ;
1002	}
1003	else {	656	else
1004	LOG(llevError,"update_object called with invalid action: %d\n", action);	657	LOG (llevError, "update_object called with invalid action: %d\n", action);
1005	}
1006		658
1007	if (update_now) {
1008	SET_MAP_FLAGS(op->map, op->x, op->y, flags | P_NO_ERROR | P_NEED_UPDATE);
1009	update_position(op->map, op->x, op->y);
1010	}
1011
1012	if(op->more!=NULL)	659	if (op->more)
1013	update_object(op->more, action);	660	update_object (op->more, action);
1014	}	661	}
1015		662
		663	object *object::first;
1016		664
1017	/*	665	object::object ()
1018	* free_object() frees everything allocated by an object, removes	666	{
1019	* it from the list of used objects, and puts it on the list of	667	SET_FLAG (this, FLAG_REMOVED);
1020	* free objects. The IS_FREED() flag is set in the object.
1021	* The object must have been removed by remove_ob() first for
1022	* this function to succeed.
1023	*
1024	* If free_inventory is set, free inventory as well. Else drop items in
1025	* inventory to the ground.
1026	*/
1027		668
1028	void free_object(object *ob) {	669	expmul = 1.0;
1029	free_object2(ob, 0);	670	face = blank_face;
1030	}	671	}
1031	void free_object2(object *ob, int free_inventory) {
1032	object *tmp,*op;
1033		672
1034	ob->clear ();	673	object::~object ()
		674	{
		675	free_key_values (this);
		676	}
1035		677
1036	if (!QUERY_FLAG(ob,FLAG_REMOVED)) {	678	void object::link ()
1037	LOG(llevDebug,"Free object called with non removed object\n");	679	{
1038	dump_object(ob);	680	assert (!count);//D
1039	#ifdef MANY_CORES	681	uuid = gen_uuid ();
1040	abort();	682
1041	#endif	683	refcnt_inc ();
1042	}	684	objects.insert (this);
1043	if(QUERY_FLAG(ob,FLAG_FRIENDLY)) {	685	}
1044	LOG(llevMonster,"Warning: tried to free friendly object.\n");	686
1045	remove_friendly_object(ob);	687	void object::unlink ()
1046	}	688	{
1047	if(QUERY_FLAG(ob,FLAG_FREED)) {	689	assert (count);//D
1048	dump_object(ob);	690	objects.erase (this);
1049	LOG(llevError,"Trying to free freed object.\n%s\n",errmsg);	691	refcnt_dec ();
		692	}
		693
		694	void
		695	object::activate ()
		696	{
		697	/* If already on active list, don't do anything */
		698	if (active)
1050	return;	699	return;
		700
		701	if (has_active_speed ())
		702	actives.insert (this);
		703	}
		704
		705	void
		706	object::activate_recursive ()
		707	{
		708	activate ();
		709
		710	for (object *op = inv; op; op = op->below)
		711	op->activate_recursive ();
		712	}
		713
		714	/* This function removes object 'op' from the list of active
		715	* objects.
		716	* This should only be used for style maps or other such
		717	* reference maps where you don't want an object that isn't
		718	* in play chewing up cpu time getting processed.
		719	* The reverse of this is to call update_ob_speed, which
		720	* will do the right thing based on the speed of the object.
		721	*/
		722	void
		723	object::deactivate ()
		724	{
		725	/* If not on the active list, nothing needs to be done */
		726	if (!active)
		727	return;
		728
		729	actives.erase (this);
		730	}
		731
		732	void
		733	object::deactivate_recursive ()
		734	{
		735	for (object *op = inv; op; op = op->below)
		736	op->deactivate_recursive ();
		737
		738	deactivate ();
		739	}
		740
		741	void
		742	object::set_flag_inv (int flag, int value)
		743	{
		744	for (object *op = inv; op; op = op->below)
1051	}	745	{
1052	if(ob->more!=NULL) {	746	op->flag [flag] = value;
1053	free_object2(ob->more, free_inventory);	747	op->set_flag_inv (flag, value);
1054	ob->more=NULL;
1055	}	748	}
1056	if (ob->inv) {	749	}
		750
		751	/*
		752	* Remove and free all objects in the inventory of the given object.
		753	* object.c ?
		754	*/
		755	void
		756	object::destroy_inv (bool drop_to_ground)
		757	{
		758	// need to check first, because the checks below might segfault
		759	// as we might be on an invalid mapspace and crossfire code
		760	// is too buggy to ensure that the inventory is empty.
		761	// corollary: if you create arrows etc. with stuff in tis inventory,
		762	// cf will crash below with off-map x and y
		763	if (!inv)
		764	return;
		765
1057	/* Only if the space blocks everything do we not process -	766	/* Only if the space blocks everything do we not process -
1058	* if some form of movemnt is allowed, let objects	767	* if some form of movement is allowed, let objects
1059	* drop on that space.	768	* drop on that space.
1060	*/	769	*/
1061	if (free_inventory || ob->map==NULL || ob->map->in_memory!=MAP_IN_MEMORY ||	770	if (!drop_to_ground
1062	(GET_MAP_MOVE_BLOCK(ob->map, ob->x, ob->y) == MOVE_ALL))	771	|| !map
1063	{	772	|| map->in_memory != MAP_IN_MEMORY
1064	op=ob->inv;	773	|| ms ().move_block == MOVE_ALL)
1065	while(op!=NULL) {
1066	tmp=op->below;
1067	remove_ob(op);
1068	free_object2(op, free_inventory);
1069	op=tmp;
1070	}
1071	}
1072	else { /* Put objects in inventory onto this space */
1073	op=ob->inv;
1074	while(op!=NULL) {
1075	tmp=op->below;
1076	remove_ob(op);
1077	if(QUERY_FLAG(op,FLAG_STARTEQUIP)||QUERY_FLAG(op,FLAG_NO_DROP) ||
1078	op->type==RUNE || op->type==TRAP || QUERY_FLAG(op,FLAG_IS_A_TEMPLATE))
1079	free_object(op);
1080	else {
1081	op->x=ob->x;
1082	op->y=ob->y;
1083	insert_ob_in_map(op,ob->map,NULL,0); /* Insert in same map as the envir */
1084	}
1085	op=tmp;
1086	}
1087	}
1088	}
1089	/* Remove object from the active list */
1090	ob->speed = 0;
1091	update_ob_speed(ob);
1092
1093	SET_FLAG(ob, FLAG_FREED);
1094	ob->count = 0;
1095
1096	/* Remove this object from the list of used objects */
1097	if(ob->prev==NULL) {
1098	objects=ob->next;
1099	if(objects!=NULL)
1100	objects->prev=NULL;
1101	}
1102	else {
1103	ob->prev->next=ob->next;
1104	if(ob->next!=NULL)
1105	ob->next->prev=ob->prev;
1106	}
1107
1108	if(ob->name!=NULL) FREE_AND_CLEAR_STR(ob->name);
1109	if(ob->name_pl!=NULL) FREE_AND_CLEAR_STR(ob->name_pl);
1110	if(ob->title!=NULL) FREE_AND_CLEAR_STR(ob->title);
1111	if(ob->race!=NULL) FREE_AND_CLEAR_STR(ob->race);
1112	if(ob->slaying!=NULL) FREE_AND_CLEAR_STR(ob->slaying);
1113	if(ob->skill!=NULL) FREE_AND_CLEAR_STR(ob->skill);
1114	if(ob->lore!=NULL) FREE_AND_CLEAR_STR(ob->lore);
1115	if(ob->msg!=NULL) FREE_AND_CLEAR_STR(ob->msg);
1116	if(ob->materialname!=NULL) FREE_AND_CLEAR_STR(ob->materialname);
1117
1118		774	{
1119	/* Why aren't events freed? */	775	while (inv)
1120	free_key_values(ob);	776	{
		777	inv->destroy_inv (drop_to_ground);
		778	inv->destroy ();
		779	}
		780	}
		781	else
		782	{ /* Put objects in inventory onto this space */
		783	while (inv)
		784	{
		785	object *op = inv;
1121		786
1122	#if 0 /* MEMORY_DEBUG*/	787	if (op->flag [FLAG_STARTEQUIP]
1123	/* This is a nice idea. Unfortunately, a lot of the code in crossfire	788	|| op->flag [FLAG_NO_DROP]
1124	* presumes the freed_object will stick around for at least a little	789	|| op->type == RUNE
1125	* bit	790	|| op->type == TRAP
1126	*/	791	|| op->flag [FLAG_IS_A_TEMPLATE]
1127	/* this is necessary so that memory debugging programs will	792	|| op->flag [FLAG_DESTROY_ON_DEATH])
1128	* be able to accurately report source of malloc. If we recycle	793	op->destroy ();
1129	* objects, then some other area may be doing the get_object	794	else
1130	* and not freeing it, but the original one that malloc'd the	795	map->insert (op, x, y);
1131	* object will get the blame.	796	}
1132	*/	797	}
1133	free(ob);
1134	#else
1135
1136	/* Now link it with the free_objects list: */
1137	ob->prev=NULL;
1138	ob->next=free_objects;
1139	if(free_objects!=NULL)
1140	free_objects->prev=ob;
1141	free_objects=ob;
1142	nroffreeobjects++;
1143	#endif
1144	}	798	}
1145		799
1146	/*	800	object *object::create ()
1147	* count_free() returns the number of objects on the list of free objects.	801	{
1148	*/
1149
1150	int count_free(void) {
1151	int i=0;
1152	object *tmp=free_objects;	802	object *op = new object;
1153	while(tmp!=NULL)	803	op->link ();
1154	tmp=tmp->next, i++;
1155	return i;	804	return op;
1156	}	805	}
1157		806
1158	/*	807	void
1159	* count_used() returns the number of objects on the list of used objects.	808	object::do_destroy ()
1160	*/	809	{
		810	if (flag [FLAG_IS_LINKED])
		811	remove_button_link (this);
1161		812
1162	int count_used(void) {	813	if (flag [FLAG_FRIENDLY])
1163	int i=0;	814	remove_friendly_object (this);
1164	object *tmp=objects;	815
1165	while(tmp!=NULL)	816	if (!flag [FLAG_REMOVED])
1166	tmp=tmp->next, i++;	817	remove ();
		818
		819	if (flag [FLAG_FREED])
1167	return i;	820	return;
1168	}
1169		821
1170	/*	822	set_speed (0);
1171	* count_active() returns the number of objects on the list of active objects.
1172	*/
1173		823
1174	int count_active(void) {	824	flag [FLAG_FREED] = 1;
1175	int i=0;	825
1176	object *tmp=active_objects;	826	attachable::do_destroy ();
1177	while(tmp!=NULL)	827
1178	tmp=tmp->active_next, i++;	828	destroy_inv (true);
		829	unlink ();
		830
		831	// hack to ensure that freed objects still have a valid map
		832	{
		833	static maptile *freed_map; // freed objects are moved here to avoid crashes
		834
		835	if (!freed_map)
		836	{
		837	freed_map = new maptile;
		838
		839	freed_map->name = "/internal/freed_objects_map";
		840	freed_map->width = 3;
		841	freed_map->height = 3;
		842
		843	freed_map->alloc ();
		844	freed_map->in_memory = MAP_IN_MEMORY;
		845	}
		846
		847	map = freed_map;
		848	x = 1;
		849	y = 1;
		850	}
		851
		852	head = 0;
		853
		854	if (more)
		855	{
		856	more->destroy ();
		857	more = 0;
		858	}
		859
		860	// clear those pointers that likely might have circular references to us
		861	owner = 0;
		862	enemy = 0;
		863	attacked_by = 0;
		864	}
		865
		866	void
		867	object::destroy (bool destroy_inventory)
		868	{
		869	if (destroyed ())
1179	return i;	870	return;
		871
		872	if (destroy_inventory)
		873	destroy_inv (false);
		874
		875	attachable::destroy ();
1180	}	876	}
1181		877
1182	/*	878	/*
1183	* sub_weight() recursively (outwards) subtracts a number from the	879	* sub_weight() recursively (outwards) subtracts a number from the
1184	* weight of an object (and what is carried by it's environment(s)).	880	* weight of an object (and what is carried by it's environment(s)).
1185	*/	881	*/
1186		882	void
1187	void sub_weight (object *op, signed long weight) {	883	sub_weight (object *op, signed long weight)
		884	{
1188	while (op != NULL) {	885	while (op != NULL)
		886	{
1189	if (op->type == CONTAINER) {	887	if (op->type == CONTAINER)
1190	weight=(signed long)(weight*(100-op->stats.Str)/100);	888	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1191	}	889
1192	op->carrying-=weight;	890	op->carrying -= weight;
1193	op = op->env;	891	op = op->env;
1194	}	892	}
1195	}	893	}
1196		894
1197	/* remove_ob(op):	895	/* op->remove ():
1198	* This function removes the object op from the linked list of objects	896	* This function removes the object op from the linked list of objects
1199	* which it is currently tied to. When this function is done, the	897	* which it is currently tied to. When this function is done, the
1200	* object will have no environment. If the object previously had an	898	* object will have no environment. If the object previously had an
1201	* environment, the x and y coordinates will be updated to	899	* environment, the x and y coordinates will be updated to
1202	* the previous environment.	900	* the previous environment.
1203	* Beware: This function is called from the editor as well!	901	* Beware: This function is called from the editor as well!
1204	*/	902	*/
1205		903	void
1206	void remove_ob(object *op) {	904	object::remove ()
		905	{
1207	object *tmp,*last=NULL;	906	object *tmp, *last = 0;
1208	object *otmp;	907	object *otmp;
1209	tag_t tag;
1210	int check_walk_off;
1211	mapstruct *m;
1212	sint16 x,y;
1213
1214		908
1215	if(QUERY_FLAG(op,FLAG_REMOVED)) {	909	if (QUERY_FLAG (this, FLAG_REMOVED))
1216	dump_object(op);	910	return;
1217	LOG(llevError,"Trying to remove removed object.\n%s\n",errmsg);
1218		911
1219	/* Changed it to always dump core in this case. As has been learned
1220	* in the past, trying to recover from errors almost always
1221	* make things worse, and this is a real error here - something
1222	* that should not happen.
1223	* Yes, if this was a mission critical app, trying to do something
1224	* to recover may make sense, but that is because failure of the app
1225	* may have other disastrous problems. Cf runs out of a script
1226	* so is easily enough restarted without any real problems.
1227	* MSW 2001-07-01
1228	*/
1229	abort();
1230	}
1231	if(op->more!=NULL)
1232	remove_ob(op->more);
1233
1234	SET_FLAG(op, FLAG_REMOVED);	912	SET_FLAG (this, FLAG_REMOVED);
		913	INVOKE_OBJECT (REMOVE, this);
1235		914
		915	if (more)
		916	more->remove ();
		917
1236	/*	918	/*
1237	* In this case, the object to be removed is in someones	919	* In this case, the object to be removed is in someones
1238	* inventory.	920	* inventory.
1239	*/	921	*/
1240	if(op->env!=NULL) {	922	if (env)
		923	{
1241	if(op->nrof)	924	if (nrof)
1242	sub_weight(op->env, op->weight*op->nrof);	925	sub_weight (env, weight * nrof);
1243	else	926	else
1244	sub_weight(op->env, op->weight+op->carrying);	927	sub_weight (env, weight + carrying);
1245		928
1246	/* NO_FIX_PLAYER is set when a great many changes are being	929	/* NO_FIX_PLAYER is set when a great many changes are being
1247	* made to players inventory. If set, avoiding the call	930	* made to players inventory. If set, avoiding the call
1248	* to save cpu time.	931	* to save cpu time.
1249	*/	932	*/
1250	if ((otmp=is_player_inv(op->env))!=NULL && otmp->contr &&	933	if ((otmp = in_player ()) && otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1251	!QUERY_FLAG(otmp,FLAG_NO_FIX_PLAYER))	934	otmp->update_stats ();
1252	fix_player(otmp);
1253		935
1254	if(op->above!=NULL)	936	if (above)
1255	op->above->below=op->below;	937	above->below = below;
1256	else	938	else
1257	op->env->inv=op->below;	939	env->inv = below;
1258		940
1259	if(op->below!=NULL)	941	if (below)
1260	op->below->above=op->above;	942	below->above = above;
1261		943
1262	/* we set up values so that it could be inserted into	944	/* we set up values so that it could be inserted into
1263	* the map, but we don't actually do that - it is up	945	* the map, but we don't actually do that - it is up
1264	* to the caller to decide what we want to do.	946	* to the caller to decide what we want to do.
		947	*/
		948	x = env->x, y = env->y;
		949	map = env->map;
		950	above = 0, below = 0;
		951	env = 0;
		952	}
		953	else if (map)
		954	{
		955	if (type == PLAYER)
		956	{
		957	--map->players;
		958	map->touch ();
		959	}
		960
		961	map->dirty = true;
		962
		963	/* link the object above us */
		964	if (above)
		965	above->below = below;
		966	else
		967	map->at (x, y).top = below; /* we were top, set new top */
		968
		969	/* Relink the object below us, if there is one */
		970	if (below)
		971	below->above = above;
		972	else
		973	{
		974	/* Nothing below, which means we need to relink map object for this space
		975	* use translated coordinates in case some oddness with map tiling is
		976	* evident
1265	*/	977	*/
1266	op->x=op->env->x,op->y=op->env->y;	978	if (GET_MAP_OB (map, x, y) != this)
1267	op->ox=op->x,op->oy=op->y;	979	{
1268	op->map=op->env->map;	980	char *dump = dump_object (this);
1269	op->above=NULL,op->below=NULL;	981	LOG (llevError,
1270	op->env=NULL;	982	"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);
		983	free (dump);
		984	dump = dump_object (GET_MAP_OB (map, x, y));
		985	LOG (llevError, "%s\n", dump);
		986	free (dump);
		987	}
		988
		989	map->at (x, y).bot = above; /* goes on above it. */
		990	}
		991
		992	above = 0;
		993	below = 0;
		994
		995	if (map->in_memory == MAP_SAVING)
1271	return;	996	return;
1272	}
1273		997
1274	/* If we get here, we are removing it from a map */	998	int check_walk_off = !flag [FLAG_NO_APPLY];
1275	if (op->map == NULL) return;
1276		999
1277	x = op->x;	1000	for (tmp = map->at (x, y).bot; tmp; tmp = tmp->above)
1278	y = op->y;
1279	m = get_map_from_coord(op->map, &x, &y);
1280
1281	if (!m) {
1282	LOG(llevError,"remove_ob called when object was on map but appears to not be within valid coordinates? %s (%d,%d)\n",
1283	op->map->path, op->x, op->y);
1284	/* in old days, we used to set x and y to 0 and continue.
1285	* it seems if we get into this case, something is probablye
1286	* screwed up and should be fixed.
1287	*/
1288	abort();
1289	}
1290	if (op->map != m) {
1291	LOG(llevDebug,"remove_ob: Object not really on map it claimed to be on? %s != %s, %d,%d != %d,%d\n",
1292	op->map->path, m->path, op->x, op->y, x, y);
1293	}
1294
1295	/* Re did the following section of code - it looks like it had
1296	* lots of logic for things we no longer care about
1297	*/
1298
1299	/* link the object above us */
1300	if (op->above)
1301	op->above->below=op->below;
1302	else
1303	SET_MAP_TOP(m,x,y,op->below); /* we were top, set new top */
1304
1305	/* Relink the object below us, if there is one */
1306	if(op->below) {
1307	op->below->above=op->above;
1308	} else {
1309	/* Nothing below, which means we need to relink map object for this space
1310	* use translated coordinates in case some oddness with map tiling is
1311	* evident
1312	*/
1313	if(GET_MAP_OB(m,x,y)!=op) {
1314	dump_object(op);
1315	LOG(llevError,"remove_ob: GET_MAP_OB does not return object to be removed even though it appears to be on the bottom?\n%s\n", errmsg);
1316	dump_object(GET_MAP_OB(m,x,y));
1317	LOG(llevError,"%s\n",errmsg);
1318	}	1001	{
1319	SET_MAP_OB(m,x,y,op->above); /* goes on above it. */
1320	}
1321	op->above=NULL;
1322	op->below=NULL;
1323
1324	if (op->map->in_memory == MAP_SAVING)
1325	return;
1326
1327	tag = op->count;
1328	check_walk_off = ! QUERY_FLAG (op, FLAG_NO_APPLY);
1329	for(tmp=GET_MAP_OB(m,x,y);tmp!=NULL;tmp=tmp->above) {
1330	/* No point updating the players look faces if he is the object	1002	/* No point updating the players look faces if he is the object
1331	* being removed.	1003	* being removed.
1332	*/	1004	*/
1333		1005
1334	if(tmp->type==PLAYER && tmp!=op) {	1006	if (tmp->type == PLAYER && tmp != this)
		1007	{
1335	/* If a container that the player is currently using somehow gets	1008	/* If a container that the player is currently using somehow gets
1336	* removed (most likely destroyed), update the player view	1009	* removed (most likely destroyed), update the player view
1337	* appropriately.	1010	* appropriately.
1338	*/	1011	*/
1339	if (tmp->container==op) {	1012	if (tmp->container == this)
1340	CLEAR_FLAG(op, FLAG_APPLIED);	1013	{
		1014	flag [FLAG_APPLIED] = 0;
1341	tmp->container=NULL;	1015	tmp->container = 0;
		1016	}
		1017
		1018	if (tmp->contr->ns)
		1019	tmp->contr->ns->floorbox_update ();
1342	}	1020	}
1343	tmp->contr->socket.update_look=1;	1021
1344	}
1345	/* See if player moving off should effect something */	1022	/* See if object moving off should effect something */
1346	if (check_walk_off && ((op->move_type & tmp->move_off) &&	1023	if (check_walk_off
		1024	&& ((move_type & tmp->move_off)
1347	(op->move_type & ~tmp->move_off & ~tmp->move_block)==0)) {	1025	&& (move_type & ~tmp->move_off & ~tmp->move_block) == 0))
1348		1026	{
1349	move_apply(tmp, op, NULL);	1027	move_apply (tmp, this, 0);
		1028
1350	if (was_destroyed (op, tag)) {	1029	if (destroyed ())
1351	LOG (llevError, "BUG: remove_ob(): name %s, archname %s destroyed "	1030	LOG (llevError, "BUG: remove_ob(): name %s, destroyed leaving object\n", tmp->debug_desc ());
1352	"leaving object\n", tmp->name, tmp->arch->name);
1353	}	1031	}
1354	}
1355		1032
1356	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */	1033	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */
1357		1034	//TODO: why is this horrible hacka fix? get rid of this code=bug! (schmorp)
1358	if(tmp->above == tmp)	1035	if (tmp->above == tmp)
1359	tmp->above = NULL;	1036	tmp->above = 0;
		1037
1360	last=tmp;	1038	last = tmp;
1361	}	1039	}
		1040
1362	/* last == NULL of there are no objects on this space */	1041	/* last == NULL if there are no objects on this space */
1363	if (last==NULL) {	1042	//TODO: this makes little sense, why only update the topmost object?
1364	/* set P_NEED_UPDATE, otherwise update_position will complain. In theory,	1043	if (!last)
1365	* we could preserve the flags (GET_MAP_FLAGS), but update_position figures	1044	map->at (x, y).flags_ = 0;
1366	* those out anyways, and if there are any flags set right now, they won't
1367	* be correct anyways.
1368	*/
1369	SET_MAP_FLAGS(op->map, op->x, op->y, P_NEED_UPDATE);
1370	update_position(op->map, op->x, op->y);
1371	}
1372	else	1045	else
1373	update_object(last, UP_OBJ_REMOVE);	1046	update_object (last, UP_OBJ_REMOVE);
1374		1047
1375	if(QUERY_FLAG(op,FLAG_BLOCKSVIEW)|| (op->glow_radius != 0))	1048	if (flag [FLAG_BLOCKSVIEW] || glow_radius)
1376	update_all_los(op->map, op->x, op->y);	1049	update_all_los (map, x, y);
1377		1050	}
1378	}	1051	}
1379		1052
1380	/*	1053	/*
1381	* merge_ob(op,top):	1054	* merge_ob(op,top):
1382	*	1055	*
1383	* This function goes through all objects below and including top, and	1056	* This function goes through all objects below and including top, and
1384	* merges op to the first matching object.	1057	* merges op to the first matching object.
1385	* If top is NULL, it is calculated.	1058	* If top is NULL, it is calculated.
1386	* Returns pointer to object if it succeded in the merge, otherwise NULL	1059	* Returns pointer to object if it succeded in the merge, otherwise NULL
1387	*/	1060	*/
1388		1061	object *
1389	object *merge_ob(object *op, object *top) {	1062	merge_ob (object *op, object *top)
		1063	{
1390	if(!op->nrof)	1064	if (!op->nrof)
1391	return 0;	1065	return 0;
1392	if(top==NULL)	1066
		1067	if (top)
1393	for(top=op;top!=NULL&&top->above!=NULL;top=top->above);	1068	for (top = op; top && top->above; top = top->above)
		1069	;
		1070
1394	for(;top!=NULL;top=top->below) {	1071	for (; top; top = top->below)
		1072	{
1395	if(top==op)	1073	if (top == op)
1396	continue;	1074	continue;
1397	if (CAN_MERGE(op,top))	1075
1398	{	1076	if (object::can_merge (op, top))
		1077	{
1399	top->nrof+=op->nrof;	1078	top->nrof += op->nrof;
		1079
1400	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/	1080	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/
1401	op->weight = 0; /* Don't want any adjustements now */	1081	op->weight = 0; /* Don't want any adjustements now */
1402	remove_ob(op);	1082	op->destroy ();
1403	free_object(op);
1404	return top;	1083	return top;
1405	}	1084	}
1406	}	1085	}
		1086
1407	return NULL;	1087	return 0;
1408	}	1088	}
1409		1089
1410	/*	1090	/*
1411	* same as insert_ob_in_map except it handle separate coordinates and do a clean	1091	* same as insert_ob_in_map except it handle separate coordinates and do a clean
1412	* job preparing multi-part monsters	1092	* job preparing multi-part monsters
1413	*/	1093	*/
		1094	object *
1414	object *insert_ob_in_map_at(object *op, mapstruct *m, object *originator, int flag, int x, int y){	1095	insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)
1415	object* tmp;	1096	{
1416	if (op->head)	1097	for (object *tmp = op->head_ (); tmp; tmp = tmp->more)
1417	op=op->head;	1098	{
1418	for (tmp=op;tmp;tmp=tmp->more){
1419	tmp->x=x+tmp->arch->clone.x;	1099	tmp->x = x + tmp->arch->clone.x;
1420	tmp->y=y+tmp->arch->clone.y;	1100	tmp->y = y + tmp->arch->clone.y;
1421	}	1101	}
		1102
1422	return insert_ob_in_map (op, m, originator, flag);	1103	return insert_ob_in_map (op, m, originator, flag);
1423	}	1104	}
1424		1105
1425	/*	1106	/*
1426	* insert_ob_in_map (op, map, originator, flag):	1107	* insert_ob_in_map (op, map, originator, flag):
1427	* This function inserts the object in the two-way linked list	1108	* This function inserts the object in the two-way linked list
…		…
1440	* Return value:	1121	* Return value:
1441	* new object if 'op' was merged with other object	1122	* new object if 'op' was merged with other object
1442	* NULL if 'op' was destroyed	1123	* NULL if 'op' was destroyed
1443	* just 'op' otherwise	1124	* just 'op' otherwise
1444	*/	1125	*/
1445		1126	object *
1446	object *insert_ob_in_map (object *op, mapstruct *m, object *originator, int flag)	1127	insert_ob_in_map (object *op, maptile *m, object *originator, int flag)
1447	{	1128	{
1448	object *tmp, *top, *floor=NULL;	1129	object *tmp, *top, *floor = NULL;
1449	sint16 x,y;	1130	sint16 x, y;
1450		1131
1451	if (QUERY_FLAG (op, FLAG_FREED)) {	1132	if (QUERY_FLAG (op, FLAG_FREED))
		1133	{
1452	LOG (llevError, "Trying to insert freed object!\n");	1134	LOG (llevError, "Trying to insert freed object!\n");
1453	return NULL;	1135	return NULL;
		1136	}
		1137
		1138	if (!m)
1454	}	1139	{
1455	if(m==NULL) {
1456	dump_object(op);	1140	char *dump = dump_object (op);
1457	LOG(llevError,"Trying to insert in null-map!\n%s\n",errmsg);	1141	LOG (llevError, "Trying to insert in null-map!\n%s\n", dump);
		1142	free (dump);
1458	return op;	1143	return op;
1459	}	1144	}
		1145
1460	if(out_of_map(m,op->x,op->y)) {	1146	if (out_of_map (m, op->x, op->y))
		1147	{
1461	dump_object(op);	1148	char *dump = dump_object (op);
1462	LOG(llevError,"Trying to insert object outside the map.\n%s\n", errmsg);	1149	LOG (llevError, "Trying to insert object outside the map.\n%s\n", dump);
1463	#ifdef MANY_CORES	1150	#ifdef MANY_CORES
1464	/* Better to catch this here, as otherwise the next use of this object	1151	/* Better to catch this here, as otherwise the next use of this object
1465	* is likely to cause a crash. Better to find out where it is getting	1152	* is likely to cause a crash. Better to find out where it is getting
1466	* improperly inserted.	1153	* improperly inserted.
1467	*/	1154	*/
1468	abort();	1155	abort ();
1469	#endif	1156	#endif
		1157	free (dump);
1470	return op;	1158	return op;
1471	}	1159	}
		1160
1472	if(!QUERY_FLAG(op,FLAG_REMOVED)) {	1161	if (!QUERY_FLAG (op, FLAG_REMOVED))
		1162	{
1473	dump_object(op);	1163	char *dump = dump_object (op);
1474	LOG(llevError,"Trying to insert (map) inserted object.\n%s\n", errmsg);	1164	LOG (llevError, "Trying to insert (map) inserted object.\n%s\n", dump);
		1165	free (dump);
1475	return op;	1166	return op;
		1167	}
		1168
		1169	if (op->more)
1476	}	1170	{
1477	if(op->more!=NULL) {
1478	/* The part may be on a different map. */	1171	/* The part may be on a different map. */
1479		1172
1480	object *more = op->more;	1173	object *more = op->more;
1481		1174
1482	/* We really need the caller to normalize coordinates - if	1175	/* We really need the caller to normalise coordinates - if
1483	* we set the map, that doesn't work if the location is within	1176	* we set the map, that doesn't work if the location is within
1484	* a map and this is straddling an edge. So only if coordinate	1177	* a map and this is straddling an edge. So only if coordinate
1485	* is clear wrong do we normalize it.	1178	* is clear wrong do we normalise it.
1486	*/	1179	*/
1487	if (OUT_OF_REAL_MAP(more->map, more->x, more->y)) {	1180	if (OUT_OF_REAL_MAP (more->map, more->x, more->y))
1488	/* Debugging information so you can see the last coordinates this object had */
1489	more->ox = more->x;
1490	more->oy = more->y;
1491	more->map = get_map_from_coord(m, &more->x, &more->y);	1181	more->map = get_map_from_coord (m, &more->x, &more->y);
1492	} else if (!more->map) {	1182	else if (!more->map)
		1183	{
1493	/* For backwards compatibility - when not dealing with tiled maps,	1184	/* For backwards compatibility - when not dealing with tiled maps,
1494	* more->map should always point to the parent.	1185	* more->map should always point to the parent.
1495	*/	1186	*/
1496	more->map = m;	1187	more->map = m;
1497	}	1188	}
1498		1189
1499	if (insert_ob_in_map(more, more->map, originator, flag) == NULL) {	1190	if (insert_ob_in_map (more, more->map, originator, flag) == NULL)
		1191	{
1500	if ( ! op->head)	1192	if (!op->head)
1501	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");	1193	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");
		1194
1502	return NULL;	1195	return 0;
1503	}	1196	}
1504	}	1197	}
		1198
1505	CLEAR_FLAG(op,FLAG_REMOVED);	1199	CLEAR_FLAG (op, FLAG_REMOVED);
1506		1200
1507	/* Debugging information so you can see the last coordinates this object had */
1508	op->ox=op->x;
1509	op->oy=op->y;
1510
1511	/* Ideally, the caller figures this out. However, it complicates a lot	1201	/* Ideally, the caller figures this out. However, it complicates a lot
1512	* of areas of callers (eg, anything that uses find_free_spot would now	1202	* of areas of callers (eg, anything that uses find_free_spot would now
1513	* need extra work	1203	* need extra work
1514	*/	1204	*/
1515	op->map=get_map_from_coord(m, &op->x, &op->y);	1205	op->map = get_map_from_coord (m, &op->x, &op->y);
1516	x = op->x;	1206	x = op->x;
1517	y = op->y;	1207	y = op->y;
1518		1208
1519	/* this has to be done after we translate the coordinates.	1209	/* this has to be done after we translate the coordinates.
1520	*/	1210	*/
1521	if(op->nrof && !(flag & INS_NO_MERGE)) {	1211	if (op->nrof && !(flag & INS_NO_MERGE))
1522	for(tmp=GET_MAP_OB(op->map,x,y);tmp!=NULL;tmp=tmp->above)	1212	for (tmp = GET_MAP_OB (op->map, x, y); tmp; tmp = tmp->above)
1523	if (CAN_MERGE(op,tmp)) {	1213	if (object::can_merge (op, tmp))
		1214	{
1524	op->nrof+=tmp->nrof;	1215	op->nrof += tmp->nrof;
1525	remove_ob(tmp);	1216	tmp->destroy ();
1526	free_object(tmp);	1217	}
		1218
		1219	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */
		1220	CLEAR_FLAG (op, FLAG_INV_LOCKED);
		1221
		1222	if (!QUERY_FLAG (op, FLAG_ALIVE))
		1223	CLEAR_FLAG (op, FLAG_NO_STEAL);
		1224
		1225	if (flag & INS_BELOW_ORIGINATOR)
		1226	{
		1227	if (originator->map != op->map || originator->x != op->x || originator->y != op->y)
		1228	{
		1229	LOG (llevError, "insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");
		1230	abort ();
		1231	}
		1232
		1233	op->above = originator;
		1234	op->below = originator->below;
		1235
		1236	if (op->below)
		1237	op->below->above = op;
		1238	else
		1239	op->ms ().bot = op;
		1240
		1241	/* since *below* originator, no need to update top */
		1242	originator->below = op;
		1243	}
		1244	else
		1245	{
		1246	/* If there are other objects, then */
		1247	if ((!(flag & INS_MAP_LOAD)) && ((top = GET_MAP_OB (op->map, op->x, op->y)) != NULL))
		1248	{
		1249	object *last = 0;
		1250
		1251	/*
		1252	* If there are multiple objects on this space, we do some trickier handling.
		1253	* We've already dealt with merging if appropriate.
		1254	* Generally, we want to put the new object on top. But if
		1255	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last
		1256	* floor, we want to insert above that and no further.
		1257	* Also, if there are spell objects on this space, we stop processing
		1258	* once we get to them. This reduces the need to traverse over all of
		1259	* them when adding another one - this saves quite a bit of cpu time
		1260	* when lots of spells are cast in one area. Currently, it is presumed
		1261	* that flying non pickable objects are spell objects.
		1262	*/
		1263	while (top)
		1264	{
		1265	if (QUERY_FLAG (top, FLAG_IS_FLOOR) || QUERY_FLAG (top, FLAG_OVERLAY_FLOOR))
		1266	floor = top;
		1267
		1268	if (QUERY_FLAG (top, FLAG_NO_PICK) && (top->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (top, FLAG_IS_FLOOR))
		1269	{
		1270	/* We insert above top, so we want this object below this */
		1271	top = top->below;
		1272	break;
		1273	}
		1274
		1275	last = top;
		1276	top = top->above;
1527	}	1277	}
1528	}
1529		1278
1530	CLEAR_FLAG(op,FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */	1279	/* Don't want top to be NULL, so set it to the last valid object */
1531	CLEAR_FLAG(op, FLAG_INV_LOCKED);	1280	top = last;
1532	if (!QUERY_FLAG(op, FLAG_ALIVE))
1533	CLEAR_FLAG(op, FLAG_NO_STEAL);
1534		1281
1535	if (flag & INS_BELOW_ORIGINATOR) {	1282	/* We let update_position deal with figuring out what the space
1536	if (originator->map != op->map || originator->x != op->x ||	1283	* looks like instead of lots of conditions here.
1537	originator->y != op->y) {	1284	* makes things faster, and effectively the same result.
1538	LOG(llevError,"insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");
1539	abort();
1540	}
1541	op->above = originator;
1542	op->below = originator->below;
1543	if (op->below) op->below->above = op;
1544	else SET_MAP_OB(op->map, op->x, op->y, op);
1545	/* since *below* originator, no need to update top */
1546	originator->below = op;
1547	} else {
1548	/* If there are other objects, then */
1549	if((! (flag & INS_MAP_LOAD)) && ((top=GET_MAP_OB(op->map,op->x,op->y))!=NULL)) {
1550	object *last=NULL;
1551	/*	1285	*/
1552	* If there are multiple objects on this space, we do some trickier handling.	1286
1553	* We've already dealt with merging if appropriate.	1287	/* Have object 'fall below' other objects that block view.
1554	* Generally, we want to put the new object on top. But if	1288	* Unless those objects are exits, type 66
1555	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last	1289	* If INS_ON_TOP is used, don't do this processing
1556	* floor, we want to insert above that and no further.	1290	* Need to find the object that in fact blocks view, otherwise
1557	* Also, if there are spell objects on this space, we stop processing	1291	* stacking is a bit odd.
1558	* once we get to them. This reduces the need to traverse over all of	1292	*/
1559	* them when adding another one - this saves quite a bit of cpu time	1293	if (!(flag & INS_ON_TOP) &&
1560	* when lots of spells are cast in one area. Currently, it is presumed	1294	(get_map_flags (op->map, 0, op->x, op->y, 0, 0) & P_BLOCKSVIEW) && (op->face && !op->face->visibility))
1561	* that flying non pickable objects are spell objects.	1295	{
		1296	for (last = top; last != floor; last = last->below)
		1297	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))
		1298	break;
		1299	/* Check to see if we found the object that blocks view,
		1300	* and make sure we have a below pointer for it so that
		1301	* we can get inserted below this one, which requires we
		1302	* set top to the object below us.
1562	*/	1303	*/
1563		1304	if (last && last->below && last != floor)
1564	while (top != NULL) {
1565	if (QUERY_FLAG(top, FLAG_IS_FLOOR) ||
1566	QUERY_FLAG(top, FLAG_OVERLAY_FLOOR)) floor = top;
1567	if (QUERY_FLAG(top, FLAG_NO_PICK)
1568	&& (top->move_type & (MOVE_FLY_LOW |MOVE_FLY_HIGH))
1569	&& !QUERY_FLAG(top, FLAG_IS_FLOOR))
1570	{
1571	/* We insert above top, so we want this object below this */
1572	top=top->below;
1573	break;
1574	}
1575	last = top;
1576	top = top->above;	1305	top = last->below;
1577	}	1306	}
1578	/* Don't want top to be NULL, so set it to the last valid object */
1579	top = last;
1580
1581	/* We let update_position deal with figuring out what the space
1582	* looks like instead of lots of conditions here.
1583	* makes things faster, and effectively the same result.
1584	*/
1585
1586	/* Have object 'fall below' other objects that block view.
1587	* Unless those objects are exits, type 66
1588	* If INS_ON_TOP is used, don't do this processing
1589	* Need to find the object that in fact blocks view, otherwise
1590	* stacking is a bit odd.
1591	*/
1592	if (!(flag & INS_ON_TOP) &&
1593	(get_map_flags(op->map, NULL, op->x, op->y, NULL, NULL) & P_BLOCKSVIEW) &&
1594	(op->face && !op->face->visibility)) {
1595	for (last=top; last != floor; last=last->below)
1596	if (QUERY_FLAG(last, FLAG_BLOCKSVIEW)&&(last->type != EXIT)) break;
1597	/* Check to see if we found the object that blocks view,
1598	* and make sure we have a below pointer for it so that
1599	* we can get inserted below this one, which requires we
1600	* set top to the object below us.
1601	*/
1602	if (last && last->below && last != floor) top=last->below;
1603	}
1604	} /* If objects on this space */	1307	} /* If objects on this space */
		1308
1605	if (flag & INS_MAP_LOAD)	1309	if (flag & INS_MAP_LOAD)
1606	top = GET_MAP_TOP(op->map,op->x,op->y);	1310	top = GET_MAP_TOP (op->map, op->x, op->y);
		1311
1607	if (flag & INS_ABOVE_FLOOR_ONLY) top = floor;	1312	if (flag & INS_ABOVE_FLOOR_ONLY)
		1313	top = floor;
1608		1314
1609	/* Top is the object that our object (op) is going to get inserted above.	1315	/* Top is the object that our object (op) is going to get inserted above.
1610	*/	1316	*/
1611		1317
1612	/* First object on this space */	1318	/* First object on this space */
1613	if (!top) {	1319	if (!top)
		1320	{
1614	op->above = GET_MAP_OB(op->map, op->x, op->y);	1321	op->above = GET_MAP_OB (op->map, op->x, op->y);
		1322
		1323	if (op->above)
1615	if (op->above) op->above->below = op;	1324	op->above->below = op;
		1325
1616	op->below = NULL;	1326	op->below = 0;
1617	SET_MAP_OB(op->map, op->x, op->y, op);	1327	op->ms ().bot = op;
		1328	}
		1329	else
1618	} else { /* get inserted into the stack above top */	1330	{ /* get inserted into the stack above top */
1619	op->above = top->above;	1331	op->above = top->above;
		1332
		1333	if (op->above)
1620	if (op->above) op->above->below = op;	1334	op->above->below = op;
		1335
1621	op->below = top;	1336	op->below = top;
1622	top->above = op;	1337	top->above = op;
1623	}	1338	}
		1339
1624	if (op->above==NULL)	1340	if (!op->above)
1625	SET_MAP_TOP(op->map,op->x, op->y, op);	1341	op->ms ().top = op;
1626	} /* else not INS_BELOW_ORIGINATOR */	1342	} /* else not INS_BELOW_ORIGINATOR */
1627		1343
1628	if(op->type==PLAYER)	1344	if (op->type == PLAYER)
		1345	{
1629	op->contr->do_los=1;	1346	op->contr->do_los = 1;
		1347	++op->map->players;
		1348	op->map->touch ();
		1349	}
1630		1350
		1351	op->map->dirty = true;
		1352
1631	/* If we have a floor, we know the player, if any, will be above	1353	/* If we have a floor, we know the player, if any, will be above
1632	* it, so save a few ticks and start from there.	1354	* it, so save a few ticks and start from there.
1633	*/	1355	*/
1634	if (!(flag & INS_MAP_LOAD))	1356	if (!(flag & INS_MAP_LOAD))
1635	for(tmp=floor?floor:GET_MAP_OB(op->map,op->x,op->y);tmp!=NULL;tmp=tmp->above) {	1357	if (object *pl = op->ms ().player ())
1636	if (tmp->type == PLAYER)	1358	if (pl->contr->ns)
1637	tmp->contr->socket.update_look=1;	1359	pl->contr->ns->floorbox_update ();
1638	}
1639		1360
1640	/* If this object glows, it may affect lighting conditions that are	1361	/* If this object glows, it may affect lighting conditions that are
1641	* visible to others on this map. But update_all_los is really	1362	* visible to others on this map. But update_all_los is really
1642	* an inefficient way to do this, as it means los for all players	1363	* an inefficient way to do this, as it means los for all players
1643	* on the map will get recalculated. The players could very well	1364	* on the map will get recalculated. The players could very well
1644	* be far away from this change and not affected in any way -	1365	* be far away from this change and not affected in any way -
1645	* this should get redone to only look for players within range,	1366	* this should get redone to only look for players within range,
1646	* or just updating the P_NEED_UPDATE for spaces within this area	1367	* or just updating the P_UPTODATE for spaces within this area
1647	* of effect may be sufficient.	1368	* of effect may be sufficient.
1648	*/	1369	*/
1649	if(MAP_DARKNESS(op->map) && (op->glow_radius != 0))	1370	if (op->map->darkness && (op->glow_radius != 0))
1650	update_all_los(op->map, op->x, op->y);	1371	update_all_los (op->map, op->x, op->y);
1651		1372
1652
1653	/* updates flags (blocked, alive, no magic, etc) for this map space */	1373	/* updates flags (blocked, alive, no magic, etc) for this map space */
1654	update_object(op,UP_OBJ_INSERT);	1374	update_object (op, UP_OBJ_INSERT);
1655		1375
		1376	INVOKE_OBJECT (INSERT, op);
1656		1377
1657	/* Don't know if moving this to the end will break anything. However,	1378	/* Don't know if moving this to the end will break anything. However,
1658	* we want to have update_look set above before calling this.	1379	* we want to have floorbox_update called before calling this.
1659	*	1380	*
1660	* check_move_on() must be after this because code called from	1381	* check_move_on() must be after this because code called from
1661	* check_move_on() depends on correct map flags (so functions like	1382	* check_move_on() depends on correct map flags (so functions like
1662	* blocked() and wall() work properly), and these flags are updated by	1383	* blocked() and wall() work properly), and these flags are updated by
1663	* update_object().	1384	* update_object().
1664	*/	1385	*/
1665		1386
1666	/* if this is not the head or flag has been passed, don't check walk on status */	1387	/* if this is not the head or flag has been passed, don't check walk on status */
1667
1668	if (!(flag & INS_NO_WALK_ON) && !op->head) {	1388	if (!(flag & INS_NO_WALK_ON) && !op->head)
		1389	{
1669	if (check_move_on(op, originator))	1390	if (check_move_on (op, originator))
1670	return NULL;	1391	return 0;
1671		1392
1672	/* If we are a multi part object, lets work our way through the check	1393	/* If we are a multi part object, lets work our way through the check
1673	* walk on's.	1394	* walk on's.
1674	*/	1395	*/
1675	for (tmp=op->more; tmp!=NULL; tmp=tmp->more)	1396	for (tmp = op->more; tmp != NULL; tmp = tmp->more)
1676	if (check_move_on (tmp, originator))	1397	if (check_move_on (tmp, originator))
1677	return NULL;	1398	return 0;
1678	}	1399	}
		1400
1679	return op;	1401	return op;
1680	}	1402	}
1681		1403
1682	/* this function inserts an object in the map, but if it	1404	/* this function inserts an object in the map, but if it
1683	* finds an object of its own type, it'll remove that one first.	1405	* finds an object of its own type, it'll remove that one first.
1684	* op is the object to insert it under: supplies x and the map.	1406	* op is the object to insert it under: supplies x and the map.
1685	*/	1407	*/
		1408	void
1686	void replace_insert_ob_in_map(const char *arch_string, object *op) {	1409	replace_insert_ob_in_map (const char *arch_string, object *op)
1687	object *tmp;	1410	{
1688	object *tmp1;	1411	object *tmp, *tmp1;
1689		1412
1690	/* first search for itself and remove any old instances */	1413	/* first search for itself and remove any old instances */
1691		1414
1692	for(tmp=GET_MAP_OB(op->map,op->x,op->y); tmp!=NULL; tmp=tmp->above) {	1415	for (tmp = op->ms ().bot; tmp; tmp = tmp->above)
1693	if(!strcmp(tmp->arch->name,arch_string)) /* same archetype */ {	1416	if (!strcmp (tmp->arch->name, arch_string)) /* same archetype */
1694	remove_ob(tmp);	1417	tmp->destroy ();
1695	free_object(tmp);
1696	}
1697	}
1698		1418
1699	tmp1=arch_to_object(find_archetype(arch_string));	1419	tmp1 = arch_to_object (archetype::find (arch_string));
1700		1420
1701		1421	tmp1->x = op->x;
1702	tmp1->x = op->x; tmp1->y = op->y;	1422	tmp1->y = op->y;
1703	insert_ob_in_map(tmp1,op->map,op,0);	1423	insert_ob_in_map (tmp1, op->map, op, 0);
1704	}	1424	}
		1425
		1426	object *
		1427	object::insert_at (object *where, object *originator, int flags)
		1428	{
		1429	where->map->insert (this, where->x, where->y, originator, flags);
		1430	}
1705		1431
1706	/*	1432	/*
1707	* get_split_ob(ob,nr) splits up ob into two parts. The part which	1433	* get_split_ob(ob,nr) splits up ob into two parts. The part which
1708	* is returned contains nr objects, and the remaining parts contains	1434	* is returned contains nr objects, and the remaining parts contains
1709	* the rest (or is removed and freed if that number is 0).	1435	* the rest (or is removed and freed if that number is 0).
1710	* On failure, NULL is returned, and the reason put into the	1436	* On failure, NULL is returned, and the reason put into the
1711	* global static errmsg array.	1437	* global static errmsg array.
1712	*/	1438	*/
1713		1439	object *
1714	object *get_split_ob(object *orig_ob, uint32 nr) {	1440	get_split_ob (object *orig_ob, uint32 nr)
		1441	{
1715	object *newob;	1442	object *newob;
1716	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);	1443	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);
1717		1444
1718	if(orig_ob->nrof<nr) {	1445	if (orig_ob->nrof < nr)
1719	sprintf(errmsg,"There are only %d %ss.",	1446	{
1720	orig_ob->nrof?orig_ob->nrof:1, orig_ob->name);	1447	sprintf (errmsg, "There are only %d %ss.", orig_ob->nrof ? orig_ob->nrof : 1, &orig_ob->name);
1721	return NULL;	1448	return NULL;
1722	}	1449	}
		1450
1723	newob = object_create_clone(orig_ob);	1451	newob = object_create_clone (orig_ob);
		1452
1724	if((orig_ob->nrof-=nr)<1) {	1453	if ((orig_ob->nrof -= nr) < 1)
1725	if ( ! is_removed)	1454	orig_ob->destroy (1);
1726	remove_ob(orig_ob);
1727	free_object2(orig_ob, 1);
1728	}
1729	else if ( ! is_removed) {	1455	else if (!is_removed)
		1456	{
1730	if(orig_ob->env!=NULL)	1457	if (orig_ob->env != NULL)
1731	sub_weight (orig_ob->env,orig_ob->weight*nr);	1458	sub_weight (orig_ob->env, orig_ob->weight * nr);
1732	if (orig_ob->env == NULL && orig_ob->map->in_memory!=MAP_IN_MEMORY) {	1459	if (orig_ob->env == NULL && orig_ob->map->in_memory != MAP_IN_MEMORY)
		1460	{
1733	strcpy(errmsg, "Tried to split object whose map is not in memory.");	1461	strcpy (errmsg, "Tried to split object whose map is not in memory.");
1734	LOG(llevDebug,
1735	"Error, Tried to split object whose map is not in memory.\n");	1462	LOG (llevDebug, "Error, Tried to split object whose map is not in memory.\n");
1736	return NULL;	1463	return NULL;
1737	}	1464	}
1738	}	1465	}
		1466
1739	newob->nrof=nr;	1467	newob->nrof = nr;
1740		1468
1741	return newob;	1469	return newob;
1742	}	1470	}
1743		1471
1744	/*	1472	/*
1745	* decrease_ob_nr(object, number) decreases a specified number from	1473	* decrease_ob_nr(object, number) decreases a specified number from
1746	* the amount of an object. If the amount reaches 0, the object	1474	* the amount of an object. If the amount reaches 0, the object
1747	* is subsequently removed and freed.	1475	* is subsequently removed and freed.
1748	*	1476	*
1749	* Return value: 'op' if something is left, NULL if the amount reached 0	1477	* Return value: 'op' if something is left, NULL if the amount reached 0
1750	*/	1478	*/
1751		1479
		1480	object *
1752	object *decrease_ob_nr (object *op, uint32 i)	1481	decrease_ob_nr (object *op, uint32 i)
1753	{	1482	{
1754	object *tmp;	1483	object *tmp;
1755	player *pl;
1756		1484
1757	if (i == 0) /* objects with op->nrof require this check */	1485	if (i == 0) /* objects with op->nrof require this check */
1758	return op;	1486	return op;
1759		1487
1760	if (i > op->nrof)	1488	if (i > op->nrof)
1761	i = op->nrof;	1489	i = op->nrof;
1762		1490
1763	if (QUERY_FLAG (op, FLAG_REMOVED))	1491	if (QUERY_FLAG (op, FLAG_REMOVED))
		1492	op->nrof -= i;
		1493	else if (op->env)
		1494	{
		1495	/* is this object in the players inventory, or sub container
		1496	* therein?
		1497	*/
		1498	tmp = op->in_player ();
		1499	/* nope. Is this a container the player has opened?
		1500	* If so, set tmp to that player.
		1501	* IMO, searching through all the players will mostly
		1502	* likely be quicker than following op->env to the map,
		1503	* and then searching the map for a player.
		1504	*/
		1505	if (!tmp)
		1506	for_all_players (pl)
		1507	if (pl->ob->container == op->env)
		1508	{
		1509	tmp = pl->ob;
		1510	break;
		1511	}
		1512
		1513	if (i < op->nrof)
		1514	{
		1515	sub_weight (op->env, op->weight * i);
		1516	op->nrof -= i;
		1517	if (tmp)
		1518	esrv_send_item (tmp, op);
		1519	}
		1520	else
		1521	{
		1522	op->remove ();
		1523	op->nrof = 0;
		1524	if (tmp)
		1525	esrv_del_item (tmp->contr, op->count);
		1526	}
1764	{	1527	}
		1528	else
		1529	{
		1530	object *above = op->above;
		1531
		1532	if (i < op->nrof)
1765	op->nrof -= i;	1533	op->nrof -= i;
1766	}	1534	else
1767	else if (op->env != NULL)
1768	{
1769	/* is this object in the players inventory, or sub container
1770	* therein?
1771	*/
1772	tmp = is_player_inv (op->env);
1773	/* nope. Is this a container the player has opened?
1774	* If so, set tmp to that player.
1775	* IMO, searching through all the players will mostly
1776	* likely be quicker than following op->env to the map,
1777	* and then searching the map for a player.
1778	*/
1779	if (!tmp) {
1780	for (pl=first_player; pl; pl=pl->next)
1781	if (pl->ob->container == op->env) break;
1782	if (pl) tmp=pl->ob;
1783	else tmp=NULL;
1784	}	1535	{
1785
1786	if (i < op->nrof) {
1787	sub_weight (op->env, op->weight * i);
1788	op->nrof -= i;
1789	if (tmp) {
1790	esrv_send_item(tmp, op);
1791	}
1792	} else {
1793	remove_ob (op);	1536	op->remove ();
1794	op->nrof = 0;	1537	op->nrof = 0;
1795	if (tmp) {
1796	esrv_del_item(tmp->contr, op->count);
1797	}	1538	}
1798	}
1799	}
1800	else
1801	{
1802	object *above = op->above;
1803		1539
1804	if (i < op->nrof) {
1805	op->nrof -= i;
1806	} else {
1807	remove_ob (op);
1808	op->nrof = 0;
1809	}
1810	/* Since we just removed op, op->above is null */	1540	/* Since we just removed op, op->above is null */
1811	for (tmp = above; tmp != NULL; tmp = tmp->above)	1541	for (tmp = above; tmp; tmp = tmp->above)
1812	if (tmp->type == PLAYER) {	1542	if (tmp->type == PLAYER)
		1543	{
1813	if (op->nrof)	1544	if (op->nrof)
1814	esrv_send_item(tmp, op);	1545	esrv_send_item (tmp, op);
1815	else	1546	else
1816	esrv_del_item(tmp->contr, op->count);	1547	esrv_del_item (tmp->contr, op->count);
1817	}	1548	}
1818	}	1549	}
1819		1550
1820	if (op->nrof) {	1551	if (op->nrof)
1821	return op;	1552	return op;
1822	} else {	1553	else
1823	free_object (op);	1554	{
		1555	op->destroy ();
1824	return NULL;	1556	return 0;
1825	}	1557	}
1826	}	1558	}
1827		1559
1828	/*	1560	/*
1829	* add_weight(object, weight) adds the specified weight to an object,	1561	* add_weight(object, weight) adds the specified weight to an object,
1830	* and also updates how much the environment(s) is/are carrying.	1562	* and also updates how much the environment(s) is/are carrying.
1831	*/	1563	*/
1832		1564
		1565	void
1833	void add_weight (object *op, signed long weight) {	1566	add_weight (object *op, signed long weight)
		1567	{
1834	while (op!=NULL) {	1568	while (op != NULL)
		1569	{
1835	if (op->type == CONTAINER) {	1570	if (op->type == CONTAINER)
1836	weight=(signed long)(weight*(100-op->stats.Str)/100);	1571	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1837	}	1572
1838	op->carrying+=weight;	1573	op->carrying += weight;
1839	op=op->env;	1574	op = op->env;
1840	}	1575	}
1841	}	1576	}
1842		1577
		1578	object *
		1579	insert_ob_in_ob (object *op, object *where)
		1580	{
		1581	if (!where)
		1582	{
		1583	char *dump = dump_object (op);
		1584	LOG (llevError, "Trying to put object in NULL.\n%s\n", dump);
		1585	free (dump);
		1586	return op;
		1587	}
		1588
		1589	if (where->head)
		1590	{
		1591	LOG (llevDebug, "Warning: Tried to insert object into wrong part of multipart object.\n");
		1592	where = where->head;
		1593	}
		1594
		1595	return where->insert (op);
		1596	}
		1597
1843	/*	1598	/*
1844	* insert_ob_in_ob(op,environment):	1599	* env->insert (op)
1845	* This function inserts the object op in the linked list	1600	* This function inserts the object op in the linked list
1846	* inside the object environment.	1601	* inside the object environment.
1847	*	1602	*
1848	* Eneq(@csd.uu.se): Altered insert_ob_in_ob to make things picked up enter
1849	* the inventory at the last position or next to other objects of the same
1850	* type.
1851	* Frank: Now sorted by type, archetype and magic!
1852	*
1853	* The function returns now pointer to inserted item, and return value can	1603	* The function returns now pointer to inserted item, and return value can
1854	* be != op, if items are merged. -Tero	1604	* be != op, if items are merged. -Tero
1855	*/	1605	*/
1856		1606
1857	object *insert_ob_in_ob(object *op,object *where) {	1607	object *
		1608	object::insert (object *op)
		1609	{
1858	object *tmp, *otmp;	1610	object *tmp, *otmp;
1859		1611
1860	if(!QUERY_FLAG(op,FLAG_REMOVED)) {	1612	if (!QUERY_FLAG (op, FLAG_REMOVED))
1861	dump_object(op);	1613	op->remove ();
1862	LOG(llevError,"Trying to insert (ob) inserted object.\n%s\n", errmsg);	1614
1863	return op;
1864	}
1865	if(where==NULL) {
1866	dump_object(op);
1867	LOG(llevError,"Trying to put object in NULL.\n%s\n", errmsg);
1868	return op;
1869	}
1870	if (where->head) {
1871	LOG(llevDebug,
1872	"Warning: Tried to insert object wrong part of multipart object.\n");
1873	where = where->head;
1874	}
1875	if (op->more) {	1615	if (op->more)
		1616	{
1876	LOG(llevError, "Tried to insert multipart object %s (%d)\n",	1617	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);
1877	op->name, op->count);
1878	return op;	1618	return op;
1879	}	1619	}
		1620
1880	CLEAR_FLAG(op, FLAG_OBJ_ORIGINAL);	1621	CLEAR_FLAG (op, FLAG_OBJ_ORIGINAL);
1881	CLEAR_FLAG(op, FLAG_REMOVED);	1622	CLEAR_FLAG (op, FLAG_REMOVED);
1882	if(op->nrof) {	1623	if (op->nrof)
		1624	{
1883	for(tmp=where->inv;tmp!=NULL;tmp=tmp->below)	1625	for (tmp = inv; tmp != NULL; tmp = tmp->below)
1884	if ( CAN_MERGE(tmp,op) ) {	1626	if (object::can_merge (tmp, op))
		1627	{
1885	/* return the original object and remove inserted object	1628	/* return the original object and remove inserted object
1886	(client needs the original object) */	1629	(client needs the original object) */
1887	tmp->nrof += op->nrof;	1630	tmp->nrof += op->nrof;
1888	/* Weight handling gets pretty funky. Since we are adding to	1631	/* Weight handling gets pretty funky. Since we are adding to
1889	* tmp->nrof, we need to increase the weight.	1632	* tmp->nrof, we need to increase the weight.
1890	*/	1633	*/
1891	add_weight (where, op->weight*op->nrof);	1634	add_weight (this, op->weight * op->nrof);
1892	SET_FLAG(op, FLAG_REMOVED);	1635	SET_FLAG (op, FLAG_REMOVED);
1893	free_object(op); /* free the inserted object */	1636	op->destroy (); /* free the inserted object */
1894	op = tmp;	1637	op = tmp;
1895	remove_ob (op); /* and fix old object's links */	1638	op->remove (); /* and fix old object's links */
1896	CLEAR_FLAG(op, FLAG_REMOVED);	1639	CLEAR_FLAG (op, FLAG_REMOVED);
1897	break;	1640	break;
1898	}	1641	}
1899		1642
1900	/* I assume combined objects have no inventory	1643	/* I assume combined objects have no inventory
1901	* We add the weight - this object could have just been removed	1644	* We add the weight - this object could have just been removed
1902	* (if it was possible to merge). calling remove_ob will subtract	1645	* (if it was possible to merge). calling remove_ob will subtract
1903	* the weight, so we need to add it in again, since we actually do	1646	* the weight, so we need to add it in again, since we actually do
1904	* the linking below	1647	* the linking below
1905	*/	1648	*/
1906	add_weight (where, op->weight*op->nrof);	1649	add_weight (this, op->weight * op->nrof);
		1650	}
1907	} else	1651	else
1908	add_weight (where, (op->weight+op->carrying));	1652	add_weight (this, (op->weight + op->carrying));
1909		1653
1910	otmp=is_player_inv(where);	1654	otmp = this->in_player ();
1911	if (otmp&&otmp->contr!=NULL) {	1655	if (otmp && otmp->contr)
1912	if (!QUERY_FLAG(otmp,FLAG_NO_FIX_PLAYER))	1656	if (!QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1913	fix_player(otmp);	1657	otmp->update_stats ();
1914	}
1915		1658
1916	op->map=NULL;	1659	op->map = 0;
1917	op->env=where;	1660	op->env = this;
1918	op->above=NULL;	1661	op->above = 0;
1919	op->below=NULL;	1662	op->below = 0;
1920	op->x=0,op->y=0;	1663	op->x = 0, op->y = 0;
1921	op->ox=0,op->oy=0;
1922		1664
1923	/* reset the light list and los of the players on the map */	1665	/* reset the light list and los of the players on the map */
1924	if((op->glow_radius!=0)&&where->map)	1666	if ((op->glow_radius != 0) && map)
1925	{	1667	{
1926	#ifdef DEBUG_LIGHTS	1668	#ifdef DEBUG_LIGHTS
1927	LOG(llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n",	1669	LOG (llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n", op->name);
1928	op->name);
1929	#endif /* DEBUG_LIGHTS */	1670	#endif /* DEBUG_LIGHTS */
1930	if (MAP_DARKNESS(where->map)) update_all_los(where->map, where->x, where->y);	1671	if (map->darkness)
		1672	update_all_los (map, x, y);
1931	}	1673	}
1932		1674
1933	/* Client has no idea of ordering so lets not bother ordering it here.	1675	/* Client has no idea of ordering so lets not bother ordering it here.
1934	* It sure simplifies this function...	1676	* It sure simplifies this function...
1935	*/	1677	*/
1936	if (where->inv==NULL)	1678	if (!inv)
1937	where->inv=op;	1679	inv = op;
1938	else {	1680	else
		1681	{
1939	op->below = where->inv;	1682	op->below = inv;
1940	op->below->above = op;	1683	op->below->above = op;
1941	where->inv = op;	1684	inv = op;
1942	}	1685	}
		1686
		1687	INVOKE_OBJECT (INSERT, this);
		1688
1943	return op;	1689	return op;
1944	}	1690	}
1945		1691
1946	/*	1692	/*
1947	* Checks if any objects has a move_type that matches objects	1693	* Checks if any objects has a move_type that matches objects
…		…
1961	*	1707	*
1962	* MSW 2001-07-08: Check all objects on space, not just those below	1708	* MSW 2001-07-08: Check all objects on space, not just those below
1963	* object being inserted. insert_ob_in_map may not put new objects	1709	* object being inserted. insert_ob_in_map may not put new objects
1964	* on top.	1710	* on top.
1965	*/	1711	*/
1966		1712	int
1967	int check_move_on (object *op, object *originator)	1713	check_move_on (object *op, object *originator)
1968	{	1714	{
1969	object *tmp;	1715	object *tmp;
1970	tag_t tag;
1971	mapstruct *m=op->map;	1716	maptile *m = op->map;
1972	int x=op->x, y=op->y;	1717	int x = op->x, y = op->y;
		1718
1973	MoveType move_on, move_slow, move_block;	1719	MoveType move_on, move_slow, move_block;
1974		1720
1975	if(QUERY_FLAG(op,FLAG_NO_APPLY))	1721	if (QUERY_FLAG (op, FLAG_NO_APPLY))
1976	return 0;	1722	return 0;
1977		1723
1978	tag = op->count;
1979
1980	move_on = GET_MAP_MOVE_ON(op->map, op->x, op->y);	1724	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);
1981	move_slow = GET_MAP_MOVE_SLOW(op->map, op->x, op->y);	1725	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);
1982	move_block = GET_MAP_MOVE_BLOCK(op->map, op->x, op->y);	1726	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);
1983		1727
1984	/* if nothing on this space will slow op down or be applied,	1728	/* if nothing on this space will slow op down or be applied,
1985	* no need to do checking below. have to make sure move_type	1729	* no need to do checking below. have to make sure move_type
1986	* is set, as lots of objects don't have it set - we treat that	1730	* is set, as lots of objects don't have it set - we treat that
1987	* as walking.	1731	* as walking.
1988	*/	1732	*/
1989	if (op->move_type && !(op->move_type & move_on) && !(op->move_type & move_slow))	1733	if (op->move_type && !(op->move_type & move_on) && !(op->move_type & move_slow))
1990	return 0;	1734	return 0;
1991		1735
1992	/* This is basically inverse logic of that below - basically,	1736	/* This is basically inverse logic of that below - basically,
1993	* if the object can avoid the move on or slow move, they do so,	1737	* if the object can avoid the move on or slow move, they do so,
1994	* but can't do it if the alternate movement they are using is	1738	* but can't do it if the alternate movement they are using is
1995	* blocked. Logic on this seems confusing, but does seem correct.	1739	* blocked. Logic on this seems confusing, but does seem correct.
1996	*/	1740	*/
1997	if ((op->move_type & ~move_on & ~move_block) != 0 &&	1741	if ((op->move_type & ~move_on & ~move_block) != 0 && (op->move_type & ~move_slow & ~move_block) != 0)
1998	(op->move_type & ~move_slow & ~move_block) != 0) return 0;	1742	return 0;
1999		1743
2000	/* The objects have to be checked from top to bottom.	1744	/* The objects have to be checked from top to bottom.
2001	* Hence, we first go to the top:	1745	* Hence, we first go to the top:
2002	*/	1746	*/
2003		1747
2004	for (tmp=GET_MAP_OB(op->map, op->x, op->y); tmp!=NULL &&	1748	for (tmp = op->ms ().bot; tmp && tmp->above; tmp = tmp->above)
2005	tmp->above!=NULL; tmp=tmp->above) {	1749	{
2006	/* Trim the search when we find the first other spell effect	1750	/* Trim the search when we find the first other spell effect
2007	* this helps performance so that if a space has 50 spell objects,	1751	* this helps performance so that if a space has 50 spell objects,
2008	* we don't need to check all of them.	1752	* we don't need to check all of them.
2009	*/	1753	*/
2010	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG(tmp, FLAG_NO_PICK)) break;	1754	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG (tmp, FLAG_NO_PICK))
		1755	break;
		1756	}
		1757
		1758	for (; tmp; tmp = tmp->below)
2011	}	1759	{
2012	for(;tmp!=NULL; tmp=tmp->below) {	1760	if (tmp == op)
2013	if (tmp == op) continue; /* Can't apply yourself */	1761	continue; /* Can't apply yourself */
2014		1762
2015	/* Check to see if one of the movement types should be slowed down.	1763	/* Check to see if one of the movement types should be slowed down.
2016	* Second check makes sure that the movement types not being slowed	1764	* Second check makes sure that the movement types not being slowed
2017	* (~slow_move) is not blocked on this space - just because the	1765	* (~slow_move) is not blocked on this space - just because the
2018	* space doesn't slow down swimming (for example), if you can't actually	1766	* space doesn't slow down swimming (for example), if you can't actually
2019	* swim on that space, can't use it to avoid the penalty.	1767	* swim on that space, can't use it to avoid the penalty.
2020	*/	1768	*/
2021	if (!QUERY_FLAG(op, FLAG_WIZPASS)) {	1769	if (!QUERY_FLAG (op, FLAG_WIZPASS))
		1770	{
2022	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||	1771	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||
2023	((op->move_type & tmp->move_slow) &&
2024	(op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0)) {	1772	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))
		1773	{
2025		1774
2026	float diff;	1775	float
2027
2028	diff = tmp->move_slow_penalty*FABS(op->speed);	1776	diff = tmp->move_slow_penalty * FABS (op->speed);
		1777
2029	if (op->type == PLAYER) {	1778	if (op->type == PLAYER)
2030	if ((QUERY_FLAG(tmp, FLAG_IS_HILLY) && find_skill_by_number(op, SK_CLIMBING)) ||	1779	if ((QUERY_FLAG (tmp, FLAG_IS_HILLY) && find_skill_by_number (op, SK_CLIMBING)) ||
2031	(QUERY_FLAG(tmp, FLAG_IS_WOODED) && find_skill_by_number(op, SK_WOODSMAN))) {	1780	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))
2032	diff /= 4.0;	1781	diff /= 4.0;
2033	}	1782
2034	}
2035	op->speed_left -= diff;	1783	op->speed_left -= diff;
2036	}	1784	}
2037	}	1785	}
2038		1786
2039	/* Basically same logic as above, except now for actual apply. */	1787	/* Basically same logic as above, except now for actual apply. */
2040	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||	1788	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||
2041	((op->move_type & tmp->move_on) &&
2042	(op->move_type & ~tmp->move_on & ~tmp->move_block)==0)) {	1789	((op->move_type & tmp->move_on) && (op->move_type & ~tmp->move_on & ~tmp->move_block) == 0))
2043		1790	{
2044	move_apply(tmp, op, originator);	1791	move_apply (tmp, op, originator);
		1792
2045	if (was_destroyed (op, tag))	1793	if (op->destroyed ())
2046	return 1;	1794	return 1;
2047		1795
2048	/* what the person/creature stepped onto has moved the object	1796	/* what the person/creature stepped onto has moved the object
2049	* someplace new. Don't process any further - if we did,	1797	* someplace new. Don't process any further - if we did,
2050	* have a feeling strange problems would result.	1798	* have a feeling strange problems would result.
2051	*/	1799	*/
2052	if (op->map != m || op->x != x || op->y != y) return 0;	1800	if (op->map != m || op->x != x || op->y != y)
		1801	return 0;
2053	}	1802	}
2054	}	1803	}
		1804
2055	return 0;	1805	return 0;
2056	}	1806	}
2057		1807
2058	/*	1808	/*
2059	* present_arch(arch, map, x, y) searches for any objects with	1809	* present_arch(arch, map, x, y) searches for any objects with
2060	* a matching archetype at the given map and coordinates.	1810	* a matching archetype at the given map and coordinates.
2061	* The first matching object is returned, or NULL if none.	1811	* The first matching object is returned, or NULL if none.
2062	*/	1812	*/
2063		1813	object *
2064	object *present_arch(const archetype *at, mapstruct *m, int x, int y) {	1814	present_arch (const archetype *at, maptile *m, int x, int y)
2065	object *tmp;	1815	{
2066	if(m==NULL || out_of_map(m,x,y)) {	1816	if (!m || out_of_map (m, x, y))
		1817	{
2067	LOG(llevError,"Present_arch called outside map.\n");	1818	LOG (llevError, "Present_arch called outside map.\n");
2068	return NULL;	1819	return NULL;
2069	}	1820	}
2070	for(tmp=GET_MAP_OB(m,x,y); tmp != NULL; tmp = tmp->above)	1821
		1822	for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)
2071	if(tmp->arch == at)	1823	if (tmp->arch == at)
2072	return tmp;	1824	return tmp;
		1825
2073	return NULL;	1826	return NULL;
2074	}	1827	}
2075		1828
2076	/*	1829	/*
2077	* present(type, map, x, y) searches for any objects with	1830	* present(type, map, x, y) searches for any objects with
2078	* a matching type variable at the given map and coordinates.	1831	* a matching type variable at the given map and coordinates.
2079	* The first matching object is returned, or NULL if none.	1832	* The first matching object is returned, or NULL if none.
2080	*/	1833	*/
2081		1834	object *
2082	object *present(unsigned char type,mapstruct *m, int x,int y) {	1835	present (unsigned char type, maptile *m, int x, int y)
2083	object *tmp;	1836	{
2084	if(out_of_map(m,x,y)) {	1837	if (out_of_map (m, x, y))
		1838	{
2085	LOG(llevError,"Present called outside map.\n");	1839	LOG (llevError, "Present called outside map.\n");
2086	return NULL;	1840	return NULL;
2087	}	1841	}
2088	for(tmp=GET_MAP_OB(m,x,y);tmp!=NULL;tmp=tmp->above)	1842
		1843	for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)
2089	if(tmp->type==type)	1844	if (tmp->type == type)
2090	return tmp;	1845	return tmp;
		1846
2091	return NULL;	1847	return NULL;
2092	}	1848	}
2093		1849
2094	/*	1850	/*
2095	* present_in_ob(type, object) searches for any objects with	1851	* present_in_ob(type, object) searches for any objects with
2096	* a matching type variable in the inventory of the given object.	1852	* a matching type variable in the inventory of the given object.
2097	* The first matching object is returned, or NULL if none.	1853	* The first matching object is returned, or NULL if none.
2098	*/	1854	*/
2099		1855	object *
2100	object *present_in_ob(unsigned char type, const object *op) {	1856	present_in_ob (unsigned char type, const object *op)
2101	object *tmp;	1857	{
2102	for(tmp=op->inv;tmp!=NULL;tmp=tmp->below)	1858	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
2103	if(tmp->type==type)	1859	if (tmp->type == type)
2104	return tmp;	1860	return tmp;
		1861
2105	return NULL;	1862	return NULL;
2106	}	1863	}
2107		1864
2108	/*	1865	/*
2109	* present_in_ob (type, str, object) searches for any objects with	1866	* present_in_ob (type, str, object) searches for any objects with
…		…
2117	* str is the string to match against. Note that we match against	1874	* str is the string to match against. Note that we match against
2118	* the object name, not the archetype name. this is so that the	1875	* the object name, not the archetype name. this is so that the
2119	* spell code can use one object type (force), but change it's name	1876	* spell code can use one object type (force), but change it's name
2120	* to be unique.	1877	* to be unique.
2121	*/	1878	*/
2122		1879	object *
2123	object *present_in_ob_by_name(int type, const char *str, const object *op) {	1880	present_in_ob_by_name (int type, const char *str, const object *op)
2124	object *tmp;	1881	{
2125
2126	for(tmp=op->inv; tmp!=NULL; tmp=tmp->below) {	1882	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2127	if ((type==-1 || tmp->type==type) && (!strcmp(str, tmp->name)))	1883	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))
2128	return tmp;	1884	return tmp;
2129	}	1885
2130	return NULL;	1886	return 0;
2131	}	1887	}
2132		1888
2133	/*	1889	/*
2134	* present_arch_in_ob(archetype, object) searches for any objects with	1890	* present_arch_in_ob(archetype, object) searches for any objects with
2135	* a matching archetype in the inventory of the given object.	1891	* a matching archetype in the inventory of the given object.
2136	* The first matching object is returned, or NULL if none.	1892	* The first matching object is returned, or NULL if none.
2137	*/	1893	*/
2138		1894	object *
2139	object *present_arch_in_ob(const archetype *at, const object *op) {	1895	present_arch_in_ob (const archetype *at, const object *op)
2140	object *tmp;	1896	{
2141	for(tmp=op->inv;tmp!=NULL;tmp=tmp->below)	1897	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
2142	if( tmp->arch == at)	1898	if (tmp->arch == at)
2143	return tmp;	1899	return tmp;
		1900
2144	return NULL;	1901	return NULL;
2145	}	1902	}
2146		1903
2147	/*	1904	/*
2148	* activate recursively a flag on an object inventory	1905	* activate recursively a flag on an object inventory
2149	*/	1906	*/
		1907	void
2150	void flag_inv(object*op, int flag){	1908	flag_inv (object *op, int flag)
2151	object *tmp;	1909	{
2152	if(op->inv)	1910	if (op->inv)
2153	for(tmp = op->inv; tmp != NULL; tmp = tmp->below){	1911	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
		1912	{
2154	SET_FLAG(tmp, flag);	1913	SET_FLAG (tmp, flag);
2155	flag_inv(tmp,flag);	1914	flag_inv (tmp, flag);
2156	}	1915	}
		1916	}
		1917
2157	}/*	1918	/*
2158	* desactivate recursively a flag on an object inventory	1919	* deactivate recursively a flag on an object inventory
2159	*/	1920	*/
		1921	void
2160	void unflag_inv(object*op, int flag){	1922	unflag_inv (object *op, int flag)
2161	object *tmp;	1923	{
2162	if(op->inv)	1924	if (op->inv)
2163	for(tmp = op->inv; tmp != NULL; tmp = tmp->below){	1925	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
		1926	{
2164	CLEAR_FLAG(tmp, flag);	1927	CLEAR_FLAG (tmp, flag);
2165	unflag_inv(tmp,flag);	1928	unflag_inv (tmp, flag);
2166	}	1929	}
2167	}	1930	}
2168		1931
2169	/*	1932	/*
2170	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in	1933	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in
2171	* all it's inventory (recursively).	1934	* all it's inventory (recursively).
2172	* If checksums are used, a player will get set_cheat called for	1935	* If checksums are used, a player will get set_cheat called for
2173	* him/her-self and all object carried by a call to this function.	1936	* him/her-self and all object carried by a call to this function.
2174	*/	1937	*/
2175		1938	void
2176	void set_cheat(object *op) {	1939	set_cheat (object *op)
		1940	{
2177	SET_FLAG(op, FLAG_WAS_WIZ);	1941	SET_FLAG (op, FLAG_WAS_WIZ);
2178	flag_inv(op, FLAG_WAS_WIZ);	1942	flag_inv (op, FLAG_WAS_WIZ);
2179	}	1943	}
2180		1944
2181	/*	1945	/*
2182	* find_free_spot(object, map, x, y, start, stop) will search for	1946	* find_free_spot(object, map, x, y, start, stop) will search for
2183	* a spot at the given map and coordinates which will be able to contain	1947	* a spot at the given map and coordinates which will be able to contain
…		…
2197	* because arch_blocked (now ob_blocked) needs to know the movement type	1961	* because arch_blocked (now ob_blocked) needs to know the movement type
2198	* to know if the space in question will block the object. We can't use	1962	* to know if the space in question will block the object. We can't use
2199	* the archetype because that isn't correct if the monster has been	1963	* the archetype because that isn't correct if the monster has been
2200	* customized, changed states, etc.	1964	* customized, changed states, etc.
2201	*/	1965	*/
2202		1966	int
2203	int find_free_spot(const object *ob, mapstruct *m,int x,int y,int start,int stop) {	1967	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)
		1968	{
2204	int i,index=0, flag;	1969	int index = 0, flag;
2205	static int altern[SIZEOFFREE];	1970	int altern[SIZEOFFREE];
2206		1971
2207	for(i=start;i<stop;i++) {	1972	for (int i = start; i < stop; i++)
		1973	{
2208	flag = ob_blocked(ob,m,x+freearr_x[i],y+freearr_y[i]);	1974	flag = ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]);
2209	if(!flag)	1975	if (!flag)
2210	altern[index++]=i;	1976	altern [index++] = i;
2211		1977
2212	/* Basically, if we find a wall on a space, we cut down the search size.	1978	/* Basically, if we find a wall on a space, we cut down the search size.
2213	* In this way, we won't return spaces that are on another side of a wall.	1979	* In this way, we won't return spaces that are on another side of a wall.
2214	* This mostly work, but it cuts down the search size in all directions -	1980	* This mostly work, but it cuts down the search size in all directions -
2215	* if the space being examined only has a wall to the north and empty	1981	* if the space being examined only has a wall to the north and empty
2216	* spaces in all the other directions, this will reduce the search space	1982	* spaces in all the other directions, this will reduce the search space
2217	* to only the spaces immediately surrounding the target area, and	1983	* to only the spaces immediately surrounding the target area, and
2218	* won't look 2 spaces south of the target space.	1984	* won't look 2 spaces south of the target space.
2219	*/	1985	*/
2220	else if ((flag & AB_NO_PASS) && maxfree[i]<stop)	1986	else if ((flag & P_NO_PASS) && maxfree[i] < stop)
2221	stop=maxfree[i];	1987	stop = maxfree[i];
2222	}	1988	}
2223	if(!index) return -1;	1989
		1990	if (!index)
		1991	return -1;
		1992
2224	return altern[RANDOM()%index];	1993	return altern[RANDOM () % index];
2225	}	1994	}
2226		1995
2227	/*	1996	/*
2228	* find_first_free_spot(archetype, mapstruct, x, y) works like	1997	* find_first_free_spot(archetype, maptile, x, y) works like
2229	* find_free_spot(), but it will search max number of squares.	1998	* find_free_spot(), but it will search max number of squares.
2230	* But it will return the first available spot, not a random choice.	1999	* But it will return the first available spot, not a random choice.
2231	* Changed 0.93.2: Have it return -1 if there is no free spot available.	2000	* Changed 0.93.2: Have it return -1 if there is no free spot available.
2232	*/	2001	*/
2233		2002	int
2234	int find_first_free_spot(const object *ob, mapstruct *m,int x,int y) {	2003	find_first_free_spot (const object *ob, maptile *m, int x, int y)
2235	int i;	2004	{
2236	for(i=0;i<SIZEOFFREE;i++) {	2005	for (int i = 0; i < SIZEOFFREE; i++)
2237	if(!ob_blocked(ob,m,x+freearr_x[i],y+freearr_y[i]))	2006	if (!ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]))
2238	return i;	2007	return i;
2239	}	2008
2240	return -1;	2009	return -1;
2241	}	2010	}
2242		2011
2243	/*	2012	/*
2244	* The function permute(arr, begin, end) randomly reorders the array	2013	* The function permute(arr, begin, end) randomly reorders the array
2245	* arr[begin..end-1].	2014	* arr[begin..end-1].
		2015	* now uses a fisher-yates shuffle, old permute was broken
2246	*/	2016	*/
		2017	static void
2247	static void permute(int *arr, int begin, int end)	2018	permute (int *arr, int begin, int end)
2248	{	2019	{
2249	int i, j, tmp, len;	2020	arr += begin;
		2021	end -= begin;
2250		2022
2251	len = end-begin;	2023	while (--end)
2252	for(i = begin; i < end; i++)	2024	swap (arr [end], arr [RANDOM () % (end + 1)]);
2253	{
2254	j = begin+RANDOM()%len;
2255
2256	tmp = arr[i];
2257	arr[i] = arr[j];
2258	arr[j] = tmp;
2259	}
2260	}	2025	}
2261		2026
2262	/* new function to make monster searching more efficient, and effective!	2027	/* new function to make monster searching more efficient, and effective!
2263	* This basically returns a randomized array (in the passed pointer) of	2028	* This basically returns a randomized array (in the passed pointer) of
2264	* the spaces to find monsters. In this way, it won't always look for	2029	* the spaces to find monsters. In this way, it won't always look for
2265	* monsters to the north first. However, the size of the array passed	2030	* monsters to the north first. However, the size of the array passed
2266	* covers all the spaces, so within that size, all the spaces within	2031	* covers all the spaces, so within that size, all the spaces within
2267	* the 3x3 area will be searched, just not in a predictable order.	2032	* the 3x3 area will be searched, just not in a predictable order.
2268	*/	2033	*/
		2034	void
2269	void get_search_arr(int *search_arr)	2035	get_search_arr (int *search_arr)
2270	{	2036	{
2271	int i;	2037	int i;
2272		2038
2273	for(i = 0; i < SIZEOFFREE; i++)	2039	for (i = 0; i < SIZEOFFREE; i++)
2274	{
2275	search_arr[i] = i;	2040	search_arr[i] = i;
2276	}
2277		2041
2278	permute(search_arr, 1, SIZEOFFREE1+1);	2042	permute (search_arr, 1, SIZEOFFREE1 + 1);
2279	permute(search_arr, SIZEOFFREE1+1, SIZEOFFREE2+1);	2043	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);
2280	permute(search_arr, SIZEOFFREE2+1, SIZEOFFREE);	2044	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);
2281	}	2045	}
2282		2046
2283	/*	2047	/*
2284	* find_dir(map, x, y, exclude) will search some close squares in the	2048	* find_dir(map, x, y, exclude) will search some close squares in the
2285	* given map at the given coordinates for live objects.	2049	* given map at the given coordinates for live objects.
…		…
2290	* Perhaps incorrectly, but I'm making the assumption that exclude	2054	* Perhaps incorrectly, but I'm making the assumption that exclude
2291	* is actually want is going to try and move there. We need this info	2055	* is actually want is going to try and move there. We need this info
2292	* because we have to know what movement the thing looking to move	2056	* because we have to know what movement the thing looking to move
2293	* there is capable of.	2057	* there is capable of.
2294	*/	2058	*/
2295		2059	int
2296	int find_dir(mapstruct *m, int x, int y, object *exclude) {	2060	find_dir (maptile *m, int x, int y, object *exclude)
		2061	{
2297	int i,max=SIZEOFFREE, mflags;	2062	int i, max = SIZEOFFREE, mflags;
		2063
2298	sint16 nx, ny;	2064	sint16 nx, ny;
2299	object *tmp;	2065	object *tmp;
2300	mapstruct *mp;	2066	maptile *mp;
		2067
2301	MoveType blocked, move_type;	2068	MoveType blocked, move_type;
2302		2069
2303	if (exclude && exclude->head) {	2070	if (exclude && exclude->head)
		2071	{
2304	exclude = exclude->head;	2072	exclude = exclude->head;
2305	move_type = exclude->move_type;	2073	move_type = exclude->move_type;
2306	} else {	2074	}
		2075	else
		2076	{
2307	/* If we don't have anything, presume it can use all movement types. */	2077	/* If we don't have anything, presume it can use all movement types. */
2308	move_type=MOVE_ALL;	2078	move_type = MOVE_ALL;
		2079	}
		2080
		2081	for (i = 1; i < max; i++)
2309	}	2082	{
2310
2311	for(i=1;i<max;i++) {
2312	mp = m;	2083	mp = m;
2313	nx = x + freearr_x[i];	2084	nx = x + freearr_x[i];
2314	ny = y + freearr_y[i];	2085	ny = y + freearr_y[i];
2315		2086
2316	mflags = get_map_flags(m, &mp, nx, ny, &nx, &ny);	2087	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);
		2088
2317	if (mflags & P_OUT_OF_MAP) {	2089	if (mflags & P_OUT_OF_MAP)
		2090	max = maxfree[i];
		2091	else
		2092	{
		2093	mapspace &ms = mp->at (nx, ny);
		2094
		2095	blocked = ms.move_block;
		2096
		2097	if ((move_type & blocked) == move_type)
2318	max = maxfree[i];	2098	max = maxfree[i];
2319	} else {
2320	blocked = GET_MAP_MOVE_BLOCK(mp, nx, ny);
2321
2322	if ((move_type & blocked) == move_type) {
2323	max=maxfree[i];
2324	} else if (mflags & P_IS_ALIVE) {	2099	else if (mflags & P_IS_ALIVE)
2325	for (tmp=GET_MAP_OB(mp,nx,ny); tmp!= NULL; tmp=tmp->above) {	2100	{
		2101	for (tmp = ms.bot; tmp; tmp = tmp->above)
2326	if ((QUERY_FLAG(tmp,FLAG_MONSTER) || tmp->type==PLAYER) &&	2102	if ((tmp->flag [FLAG_MONSTER] || tmp->type == PLAYER)
2327	(tmp != exclude ||(tmp->head && tmp->head != exclude))) {	2103	&& (tmp != exclude || (tmp->head && tmp->head != exclude)))
2328	break;	2104	break;
2329	}	2105
2330	}
2331	if(tmp) {	2106	if (tmp)
2332	return freedir[i];	2107	return freedir[i];
2333	}
2334	}	2108	}
2335	}	2109	}
2336	}	2110	}
		2111
2337	return 0;	2112	return 0;
2338	}	2113	}
2339		2114
2340	/*	2115	/*
2341	* distance(object 1, object 2) will return the square of the	2116	* distance(object 1, object 2) will return the square of the
2342	* distance between the two given objects.	2117	* distance between the two given objects.
2343	*/	2118	*/
2344		2119	int
2345	int distance(const object *ob1, const object *ob2) {	2120	distance (const object *ob1, const object *ob2)
2346	int i;	2121	{
2347	i= (ob1->x - ob2->x)*(ob1->x - ob2->x)+	2122	return (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);
2348	(ob1->y - ob2->y)*(ob1->y - ob2->y);
2349	return i;
2350	}	2123	}
2351		2124
2352	/*	2125	/*
2353	* find_dir_2(delta-x,delta-y) will return a direction in which	2126	* find_dir_2(delta-x,delta-y) will return a direction in which
2354	* an object which has subtracted the x and y coordinates of another	2127	* an object which has subtracted the x and y coordinates of another
2355	* object, needs to travel toward it.	2128	* object, needs to travel toward it.
2356	*/	2129	*/
2357		2130	int
2358	int find_dir_2(int x, int y) {	2131	find_dir_2 (int x, int y)
		2132	{
2359	int q;	2133	int q;
2360		2134
2361	if(y)	2135	if (y)
2362	q=x*100/y;	2136	q = x * 100 / y;
2363	else if (x)	2137	else if (x)
2364	q= -300*x;	2138	q = -300 * x;
2365	else	2139	else
2366	return 0;	2140	return 0;
2367		2141
2368	if(y>0) {	2142	if (y > 0)
		2143	{
2369	if(q < -242)	2144	if (q < -242)
2370	return 3 ;	2145	return 3;
2371	if (q < -41)	2146	if (q < -41)
2372	return 2 ;	2147	return 2;
2373	if (q < 41)	2148	if (q < 41)
2374	return 1 ;	2149	return 1;
2375	if (q < 242)	2150	if (q < 242)
2376	return 8 ;	2151	return 8;
2377	return 7 ;	2152	return 7;
2378	}	2153	}
2379		2154
2380	if (q < -242)	2155	if (q < -242)
2381	return 7 ;	2156	return 7;
2382	if (q < -41)	2157	if (q < -41)
2383	return 6 ;	2158	return 6;
2384	if (q < 41)	2159	if (q < 41)
2385	return 5 ;	2160	return 5;
2386	if (q < 242)	2161	if (q < 242)
2387	return 4 ;	2162	return 4;
2388		2163
2389	return 3 ;	2164	return 3;
2390	}	2165	}
2391		2166
2392	/*	2167	/*
2393	* absdir(int): Returns a number between 1 and 8, which represent	2168	* absdir(int): Returns a number between 1 and 8, which represent
2394	* the "absolute" direction of a number (it actually takes care of	2169	* the "absolute" direction of a number (it actually takes care of
2395	* "overflow" in previous calculations of a direction).	2170	* "overflow" in previous calculations of a direction).
2396	*/	2171	*/
2397		2172
		2173	int
2398	int absdir(int d) {	2174	absdir (int d)
2399	while(d<1) d+=8;	2175	{
2400	while(d>8) d-=8;	2176	while (d < 1)
		2177	d += 8;
		2178
		2179	while (d > 8)
		2180	d -= 8;
		2181
2401	return d;	2182	return d;
2402	}	2183	}
2403		2184
2404	/*	2185	/*
2405	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is	2186	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is
2406	* between two directions (which are expected to be absolute (see absdir())	2187	* between two directions (which are expected to be absolute (see absdir())
2407	*/	2188	*/
2408		2189
		2190	int
2409	int dirdiff(int dir1, int dir2) {	2191	dirdiff (int dir1, int dir2)
		2192	{
2410	int d;	2193	int d;
		2194
2411	d = abs(dir1 - dir2);	2195	d = abs (dir1 - dir2);
2412	if(d>4)	2196	if (d > 4)
2413	d = 8 - d;	2197	d = 8 - d;
		2198
2414	return d;	2199	return d;
2415	}	2200	}
2416		2201
2417	/* peterm:	2202	/* peterm:
2418	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.	2203	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.
…		…
2421	* This basically means that if direction is 15, then it could either go	2206	* This basically means that if direction is 15, then it could either go
2422	* direction 4, 14, or 16 to get back to where we are.	2207	* direction 4, 14, or 16 to get back to where we are.
2423	* Moved from spell_util.c to object.c with the other related direction	2208	* Moved from spell_util.c to object.c with the other related direction
2424	* functions.	2209	* functions.
2425	*/	2210	*/
2426
2427	int reduction_dir[SIZEOFFREE][3] = {	2211	int reduction_dir[SIZEOFFREE][3] = {
2428	{0,0,0}, /* 0 */	2212	{0, 0, 0}, /* 0 */
2429	{0,0,0}, /* 1 */	2213	{0, 0, 0}, /* 1 */
2430	{0,0,0}, /* 2 */	2214	{0, 0, 0}, /* 2 */
2431	{0,0,0}, /* 3 */	2215	{0, 0, 0}, /* 3 */
2432	{0,0,0}, /* 4 */	2216	{0, 0, 0}, /* 4 */
2433	{0,0,0}, /* 5 */	2217	{0, 0, 0}, /* 5 */
2434	{0,0,0}, /* 6 */	2218	{0, 0, 0}, /* 6 */
2435	{0,0,0}, /* 7 */	2219	{0, 0, 0}, /* 7 */
2436	{0,0,0}, /* 8 */	2220	{0, 0, 0}, /* 8 */
2437	{8,1,2}, /* 9 */	2221	{8, 1, 2}, /* 9 */
2438	{1,2,-1}, /* 10 */	2222	{1, 2, -1}, /* 10 */
2439	{2,10,12}, /* 11 */	2223	{2, 10, 12}, /* 11 */
2440	{2,3,-1}, /* 12 */	2224	{2, 3, -1}, /* 12 */
2441	{2,3,4}, /* 13 */	2225	{2, 3, 4}, /* 13 */
2442	{3,4,-1}, /* 14 */	2226	{3, 4, -1}, /* 14 */
2443	{4,14,16}, /* 15 */	2227	{4, 14, 16}, /* 15 */
2444	{5,4,-1}, /* 16 */	2228	{5, 4, -1}, /* 16 */
2445	{4,5,6}, /* 17 */	2229	{4, 5, 6}, /* 17 */
2446	{6,5,-1}, /* 18 */	2230	{6, 5, -1}, /* 18 */
2447	{6,20,18}, /* 19 */	2231	{6, 20, 18}, /* 19 */
2448	{7,6,-1}, /* 20 */	2232	{7, 6, -1}, /* 20 */
2449	{6,7,8}, /* 21 */	2233	{6, 7, 8}, /* 21 */
2450	{7,8,-1}, /* 22 */	2234	{7, 8, -1}, /* 22 */
2451	{8,22,24}, /* 23 */	2235	{8, 22, 24}, /* 23 */
2452	{8,1,-1}, /* 24 */	2236	{8, 1, -1}, /* 24 */
2453	{24,9,10}, /* 25 */	2237	{24, 9, 10}, /* 25 */
2454	{9,10,-1}, /* 26 */	2238	{9, 10, -1}, /* 26 */
2455	{10,11,-1}, /* 27 */	2239	{10, 11, -1}, /* 27 */
2456	{27,11,29}, /* 28 */	2240	{27, 11, 29}, /* 28 */
2457	{11,12,-1}, /* 29 */	2241	{11, 12, -1}, /* 29 */
2458	{12,13,-1}, /* 30 */	2242	{12, 13, -1}, /* 30 */
2459	{12,13,14}, /* 31 */	2243	{12, 13, 14}, /* 31 */
2460	{13,14,-1}, /* 32 */	2244	{13, 14, -1}, /* 32 */
2461	{14,15,-1}, /* 33 */	2245	{14, 15, -1}, /* 33 */
2462	{33,15,35}, /* 34 */	2246	{33, 15, 35}, /* 34 */
2463	{16,15,-1}, /* 35 */	2247	{16, 15, -1}, /* 35 */
2464	{17,16,-1}, /* 36 */	2248	{17, 16, -1}, /* 36 */
2465	{18,17,16}, /* 37 */	2249	{18, 17, 16}, /* 37 */
2466	{18,17,-1}, /* 38 */	2250	{18, 17, -1}, /* 38 */
2467	{18,19,-1}, /* 39 */	2251	{18, 19, -1}, /* 39 */
2468	{41,19,39}, /* 40 */	2252	{41, 19, 39}, /* 40 */
2469	{19,20,-1}, /* 41 */	2253	{19, 20, -1}, /* 41 */
2470	{20,21,-1}, /* 42 */	2254	{20, 21, -1}, /* 42 */
2471	{20,21,22}, /* 43 */	2255	{20, 21, 22}, /* 43 */
2472	{21,22,-1}, /* 44 */	2256	{21, 22, -1}, /* 44 */
2473	{23,22,-1}, /* 45 */	2257	{23, 22, -1}, /* 45 */
2474	{45,47,23}, /* 46 */	2258	{45, 47, 23}, /* 46 */
2475	{23,24,-1}, /* 47 */	2259	{23, 24, -1}, /* 47 */
2476	{24,9,-1}}; /* 48 */	2260	{24, 9, -1}
		2261	}; /* 48 */
2477		2262
2478	/* Recursive routine to step back and see if we can	2263	/* Recursive routine to step back and see if we can
2479	* find a path to that monster that we found. If not,	2264	* find a path to that monster that we found. If not,
2480	* we don't bother going toward it. Returns 1 if we	2265	* we don't bother going toward it. Returns 1 if we
2481	* can see a direct way to get it	2266	* can see a direct way to get it
2482	* Modified to be map tile aware -.MSW	2267	* Modified to be map tile aware -.MSW
2483	*/	2268	*/
2484		2269	int
2485
2486	int can_see_monsterP(mapstruct *m, int x, int y,int dir) {	2270	can_see_monsterP (maptile *m, int x, int y, int dir)
		2271	{
2487	sint16 dx, dy;	2272	sint16 dx, dy;
2488	int mflags;	2273	int mflags;
2489		2274
		2275	if (dir < 0)
2490	if(dir<0) return 0; /* exit condition: invalid direction */	2276	return 0; /* exit condition: invalid direction */
2491		2277
2492	dx = x + freearr_x[dir];	2278	dx = x + freearr_x[dir];
2493	dy = y + freearr_y[dir];	2279	dy = y + freearr_y[dir];
2494		2280
2495	mflags = get_map_flags(m, &m, dx, dy, &dx, &dy);	2281	mflags = get_map_flags (m, &m, dx, dy, &dx, &dy);
2496		2282
2497	/* This functional arguably was incorrect before - it was	2283	/* This functional arguably was incorrect before - it was
2498	* checking for P_WALL - that was basically seeing if	2284	* checking for P_WALL - that was basically seeing if
2499	* we could move to the monster - this is being more	2285	* we could move to the monster - this is being more
2500	* literal on if we can see it. To know if we can actually	2286	* literal on if we can see it. To know if we can actually
2501	* move to the monster, we'd need the monster passed in or	2287	* move to the monster, we'd need the monster passed in or
2502	* at least its move type.	2288	* at least its move type.
2503	*/	2289	*/
2504	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW)) return 0;	2290	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW))
		2291	return 0;
2505		2292
2506	/* yes, can see. */	2293	/* yes, can see. */
2507	if(dir < 9) return 1;	2294	if (dir < 9)
		2295	return 1;
		2296
2508	return can_see_monsterP(m, x, y, reduction_dir[dir][0]) |	2297	return can_see_monsterP (m, x, y, reduction_dir[dir][0])
2509	can_see_monsterP(m,x,y, reduction_dir[dir][1]) |	2298	| can_see_monsterP (m, x, y, reduction_dir[dir][1])
2510	can_see_monsterP(m,x,y, reduction_dir[dir][2]);	2299	| can_see_monsterP (m, x, y, reduction_dir[dir][2]);
2511	}	2300	}
2512		2301
2513
2514
2515	/*	2302	/*
2516	* can_pick(picker, item): finds out if an object is possible to be	2303	* can_pick(picker, item): finds out if an object is possible to be
2517	* picked up by the picker. Returnes 1 if it can be	2304	* picked up by the picker. Returnes 1 if it can be
2518	* picked up, otherwise 0.	2305	* picked up, otherwise 0.
2519	*	2306	*
…		…
2521	* core dumps if they do.	2308	* core dumps if they do.
2522	*	2309	*
2523	* Add a check so we can't pick up invisible objects (0.93.8)	2310	* Add a check so we can't pick up invisible objects (0.93.8)
2524	*/	2311	*/
2525		2312
		2313	int
2526	int can_pick(const object *who, const object *item) {	2314	can_pick (const object *who, const object *item)
		2315	{
2527	return /*QUERY_FLAG(who,FLAG_WIZ)||*/	2316	return /*QUERY_FLAG(who,FLAG_WIZ)|| */
2528	(item->weight>0&&!QUERY_FLAG(item,FLAG_NO_PICK)&&	2317	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&
2529	!QUERY_FLAG(item,FLAG_ALIVE)&&!item->invisible &&	2318	!QUERY_FLAG (item, FLAG_ALIVE) && !item->invisible && (who->type == PLAYER || item->weight < who->weight / 3));
2530	(who->type==PLAYER||item->weight<who->weight/3));
2531	}	2319	}
2532
2533		2320
2534	/*	2321	/*
2535	* create clone from object to another	2322	* create clone from object to another
2536	*/	2323	*/
		2324	object *
2537	object *object_create_clone (object *asrc) {	2325	object_create_clone (object *asrc)
		2326	{
2538	object *dst = NULL,*tmp,*src,*part,*prev, *item;	2327	object *dst = 0, *tmp, *src, *part, *prev, *item;
2539		2328
2540	if(!asrc) return NULL;	2329	if (!asrc)
		2330	return 0;
		2331
2541	src = asrc;	2332	src = asrc;
2542	if(src->head)	2333	if (src->head)
2543	src = src->head;	2334	src = src->head;
2544		2335
2545	prev = NULL;	2336	prev = 0;
2546	for(part = src; part; part = part->more) {	2337	for (part = src; part; part = part->more)
2547	tmp = get_object();	2338	{
2548	copy_object(part,tmp);	2339	tmp = part->clone ();
2549	tmp->x -= src->x;	2340	tmp->x -= src->x;
2550	tmp->y -= src->y;	2341	tmp->y -= src->y;
		2342
2551	if(!part->head) {	2343	if (!part->head)
		2344	{
2552	dst = tmp;	2345	dst = tmp;
2553	tmp->head = NULL;	2346	tmp->head = 0;
		2347	}
2554	} else {	2348	else
2555	tmp->head = dst;	2349	tmp->head = dst;
2556	}	2350
2557	tmp->more = NULL;	2351	tmp->more = 0;
		2352
2558	if(prev)	2353	if (prev)
2559	prev->more = tmp;	2354	prev->more = tmp;
		2355
2560	prev = tmp;	2356	prev = tmp;
2561	}	2357	}
2562	/*** copy inventory ***/	2358
2563	for(item = src->inv; item; item = item->below) {	2359	for (item = src->inv; item; item = item->below)
2564	(void) insert_ob_in_ob(object_create_clone(item),dst);	2360	insert_ob_in_ob (object_create_clone (item), dst);
2565	}
2566		2361
2567	return dst;	2362	return dst;
2568	}
2569
2570	/* return true if the object was destroyed, 0 otherwise */
2571	int was_destroyed (const object *op, tag_t old_tag)
2572	{
2573	/* checking for FLAG_FREED isn't necessary, but makes this function more
2574	* robust */
2575	return op->count != old_tag || QUERY_FLAG (op, FLAG_FREED);
2576	}	2363	}
2577		2364
2578	/* GROS - Creates an object using a string representing its content. */	2365	/* GROS - Creates an object using a string representing its content. */
2579	/* Basically, we save the content of the string to a temp file, then call */	2366	/* Basically, we save the content of the string to a temp file, then call */
2580	/* load_object on it. I admit it is a highly inefficient way to make things, */	2367	/* load_object on it. I admit it is a highly inefficient way to make things, */
2581	/* but it was simple to make and allows reusing the load_object function. */	2368	/* but it was simple to make and allows reusing the load_object function. */
2582	/* Remember not to use load_object_str in a time-critical situation. */	2369	/* Remember not to use load_object_str in a time-critical situation. */
2583	/* Also remember that multiparts objects are not supported for now. */	2370	/* Also remember that multiparts objects are not supported for now. */
2584		2371	object *
2585	object* load_object_str(const char *obstr)	2372	load_object_str (const char *obstr)
2586	{	2373	{
2587	object *op;	2374	object *op;
2588	char filename[MAX_BUF];	2375	char filename[MAX_BUF];
		2376
2589	sprintf(filename,"%s/cfloadobstr2044",settings.tmpdir);	2377	sprintf (filename, "%s/cfloadobstr2044", settings.tmpdir);
2590		2378
2591	FILE *tempfile=fopen(filename,"w");	2379	FILE *tempfile = fopen (filename, "w");
		2380
2592	if (tempfile == NULL)	2381	if (tempfile == NULL)
2593	{	2382	{
2594	LOG(llevError,"Error - Unable to access load object temp file\n");	2383	LOG (llevError, "Error - Unable to access load object temp file\n");
2595	return NULL;	2384	return NULL;
2596	};	2385	}
		2386
2597	fprintf(tempfile,obstr);	2387	fprintf (tempfile, obstr);
2598	fclose(tempfile);	2388	fclose (tempfile);
2599		2389
2600	op=get_object();	2390	op = object::create ();
2601		2391
2602	object_thawer thawer (filename);	2392	object_thawer thawer (filename);
		2393
2603	if (thawer)	2394	if (thawer)
2604	load_object(thawer,op,LO_NEWFILE,0);	2395	load_object (thawer, op, 0);
		2396
2605	LOG(llevDebug," load str completed, object=%s\n",op->name);	2397	LOG (llevDebug, " load str completed, object=%s\n", &op->name);
2606	CLEAR_FLAG(op,FLAG_REMOVED);	2398	CLEAR_FLAG (op, FLAG_REMOVED);
2607		2399
2608	return op;	2400	return op;
2609	}	2401	}
2610		2402
2611	/* This returns the first object in who's inventory that	2403	/* This returns the first object in who's inventory that
2612	* has the same type and subtype match.	2404	* has the same type and subtype match.
2613	* returns NULL if no match.	2405	* returns NULL if no match.
2614	*/	2406	*/
		2407	object *
2615	object *find_obj_by_type_subtype(const object *who, int type, int subtype)	2408	find_obj_by_type_subtype (const object *who, int type, int subtype)
2616	{	2409	{
2617	object *tmp;
2618
2619	for (tmp=who->inv; tmp; tmp=tmp->below)	2410	for (object *tmp = who->inv; tmp; tmp = tmp->below)
2620	if (tmp->type == type && tmp->subtype == subtype) return tmp;	2411	if (tmp->type == type && tmp->subtype == subtype)
		2412	return tmp;
2621		2413
2622	return NULL;	2414	return 0;
2623	}	2415	}
2624		2416
2625	/* If ob has a field named key, return the link from the list,	2417	/* If ob has a field named key, return the link from the list,
2626	* otherwise return NULL.	2418	* otherwise return NULL.
2627	*	2419	*
2628	* key must be a passed in shared string - otherwise, this won't	2420	* key must be a passed in shared string - otherwise, this won't
2629	* do the desired thing.	2421	* do the desired thing.
2630	*/	2422	*/
		2423	key_value *
2631	key_value * get_ob_key_link(const object * ob, const char * key) {	2424	get_ob_key_link (const object *ob, const char *key)
2632	key_value * link;	2425	{
2633
2634	for (link = ob->key_values; link != NULL; link = link->next) {	2426	for (key_value *link = ob->key_values; link; link = link->next)
2635	if (link->key == key) {	2427	if (link->key == key)
2636	return link;	2428	return link;
2637	}	2429
2638	}	2430	return 0;
2639		2431	}
2640	return NULL;
2641	}
2642		2432
2643	/*	2433	/*
2644	* Returns the value of op has an extra_field for key, or NULL.	2434	* Returns the value of op has an extra_field for key, or NULL.
2645	*	2435	*
2646	* The argument doesn't need to be a shared string.	2436	* The argument doesn't need to be a shared string.
2647	*	2437	*
2648	* The returned string is shared.	2438	* The returned string is shared.
2649	*/	2439	*/
		2440	const char *
2650	const char * get_ob_key_value(const object * op, const char * const key) {	2441	get_ob_key_value (const object *op, const char *const key)
		2442	{
2651	key_value * link;	2443	key_value *link;
2652	const char * canonical_key;	2444	shstr_cmp canonical_key (key);
		2445
		2446	if (!canonical_key)
2653		2447	{
2654	canonical_key = find_string(key);
2655
2656	if (canonical_key == NULL) {
2657	/* 1. There being a field named key on any object	2448	/* 1. There being a field named key on any object
2658	* implies there'd be a shared string to find.	2449	* implies there'd be a shared string to find.
2659	* 2. Since there isn't, no object has this field.	2450	* 2. Since there isn't, no object has this field.
2660	* 3. Therefore, *this* object doesn't have this field.	2451	* 3. Therefore, *this* object doesn't have this field.
2661	*/	2452	*/
2662	return NULL;	2453	return 0;
2663	}	2454	}
2664		2455
2665	/* This is copied from get_ob_key_link() above -	2456	/* This is copied from get_ob_key_link() above -
2666	* only 4 lines, and saves the function call overhead.	2457	* only 4 lines, and saves the function call overhead.
2667	*/	2458	*/
2668	for (link = op->key_values; link != NULL; link = link->next) {	2459	for (link = op->key_values; link; link = link->next)
2669	if (link->key == canonical_key) {	2460	if (link->key == canonical_key)
2670	return link->value;	2461	return link->value;
2671	}	2462
2672	}	2463	return 0;
2673	return NULL;
2674	}	2464	}
2675		2465
2676		2466
2677	/*	2467	/*
2678	* Updates the canonical_key in op to value.	2468	* Updates the canonical_key in op to value.
…		…
2682	* Unless add_key is TRUE, it won't add fields, only change the value of existing	2472	* Unless add_key is TRUE, it won't add fields, only change the value of existing
2683	* keys.	2473	* keys.
2684	*	2474	*
2685	* Returns TRUE on success.	2475	* Returns TRUE on success.
2686	*/	2476	*/
		2477	int
2687	int set_ob_key_value_s(object * op, const char * canonical_key, const char * value, int add_key) {	2478	set_ob_key_value_s (object *op, const shstr & canonical_key, const char *value, int add_key)
		2479	{
2688	key_value * field = NULL, *last=NULL;	2480	key_value *field = NULL, *last = NULL;
2689		2481
2690	for (field=op->key_values; field != NULL; field=field->next) {	2482	for (field = op->key_values; field != NULL; field = field->next)
		2483	{
2691	if (field->key != canonical_key) {	2484	if (field->key != canonical_key)
		2485	{
2692	last = field;	2486	last = field;
2693	continue;	2487	continue;
2694	}	2488	}
2695		2489
2696	if (field->value) FREE_AND_CLEAR_STR(field->value);
2697	if (value)	2490	if (value)
2698	field->value = add_string(value);	2491	field->value = value;
2699	else {	2492	else
		2493	{
2700	/* Basically, if the archetype has this key set,	2494	/* Basically, if the archetype has this key set,
2701	* we need to store the null value so when we save	2495	* we need to store the null value so when we save
2702	* it, we save the empty value so that when we load,	2496	* it, we save the empty value so that when we load,
2703	* we get this value back again.	2497	* we get this value back again.
2704	*/	2498	*/
2705	if (get_ob_key_link(&op->arch->clone, canonical_key))	2499	if (get_ob_key_link (&op->arch->clone, canonical_key))
2706	field->value = NULL;	2500	field->value = 0;
2707	else {	2501	else
2708	/* Delete this link */	2502	{
2709	if (field->key) FREE_AND_CLEAR_STR(field->key);	2503	if (last)
2710	if (field->value) FREE_AND_CLEAR_STR(field->value);
2711	if (last) last->next = field->next;	2504	last->next = field->next;
		2505	else
2712	else op->key_values = field->next;	2506	op->key_values = field->next;
		2507
2713	free(field);	2508	delete field;
2714	}	2509	}
2715	}	2510	}
2716	return TRUE;	2511	return TRUE;
2717	}	2512	}
2718	/* IF we get here, key doesn't exist */	2513	/* IF we get here, key doesn't exist */
2719		2514
2720	/* No field, we'll have to add it. */	2515	/* No field, we'll have to add it. */
2721		2516
2722	if (!add_key) {	2517	if (!add_key)
2723	return FALSE;	2518	return FALSE;
2724	}	2519
2725	/* There isn't any good reason to store a null	2520	/* There isn't any good reason to store a null
2726	* value in the key/value list. If the archetype has	2521	* value in the key/value list. If the archetype has
2727	* this key, then we should also have it, so shouldn't	2522	* this key, then we should also have it, so shouldn't
2728	* be here. If user wants to store empty strings,	2523	* be here. If user wants to store empty strings,
2729	* should pass in ""	2524	* should pass in ""
2730	*/	2525	*/
2731	if (value == NULL) return TRUE;	2526	if (value == NULL)
2732
2733	field = (key_value *) malloc(sizeof(key_value));
2734
2735	field->key = add_refcount(canonical_key);
2736	field->value = add_string(value);
2737	/* Usual prepend-addition. */
2738	field->next = op->key_values;
2739	op->key_values = field;
2740
2741	return TRUE;	2527	return TRUE;
		2528
		2529	field = new key_value;
		2530
		2531	field->key = canonical_key;
		2532	field->value = value;
		2533	/* Usual prepend-addition. */
		2534	field->next = op->key_values;
		2535	op->key_values = field;
		2536
		2537	return TRUE;
2742	}	2538	}
2743		2539
2744	/*	2540	/*
2745	* Updates the key in op to value.	2541	* Updates the key in op to value.
2746	*	2542	*
…		…
2748	* and not add new ones.	2544	* and not add new ones.
2749	* In general, should be little reason FALSE is ever passed in for add_key	2545	* In general, should be little reason FALSE is ever passed in for add_key
2750	*	2546	*
2751	* Returns TRUE on success.	2547	* Returns TRUE on success.
2752	*/	2548	*/
		2549	int
2753	int set_ob_key_value(object * op, const char * key, const char * value, int add_key) {	2550	set_ob_key_value (object *op, const char *key, const char *value, int add_key)
2754	const char * canonical_key = NULL;	2551	{
2755	int floating_ref = FALSE;	2552	shstr key_ (key);
2756	int ret;	2553
		2554	return set_ob_key_value_s (op, key_, value, add_key);
		2555	}
		2556
		2557	object::depth_iterator::depth_iterator (object *container)
		2558	: iterator_base (container)
		2559	{
		2560	while (item->inv)
		2561	item = item->inv;
		2562	}
		2563
		2564	void
		2565	object::depth_iterator::next ()
		2566	{
		2567	if (item->below)
2757		2568	{
2758	/* HACK This mess is to make sure set_ob_value() passes a shared string	2569	item = item->below;
2759	* to get_ob_key_link(), without leaving a leaked refcount.	2570
2760	*/	2571	while (item->inv)
		2572	item = item->inv;
2761		2573	}
2762	canonical_key = find_string(key);	2574	else
2763	if (canonical_key == NULL) {	2575	item = item->env;
2764	canonical_key = add_string(key);	2576	}
2765	floating_ref = TRUE;	2577
2766	}	2578
		2579	const char *
		2580	object::flag_desc (char *desc, int len) const
		2581	{
		2582	char *p = desc;
		2583	bool first = true;
		2584
		2585	*p = 0;
		2586
		2587	for (int i = 0; i < NUM_FLAGS; i++)
2767		2588	{
2768	ret = set_ob_key_value_s(op, canonical_key, value, add_key);	2589	if (len <= 10) // magic constant!
		2590	{
		2591	snprintf (p, len, ",...");
		2592	break;
		2593	}
		2594
		2595	if (flag [i])
		2596	{
		2597	int cnt = snprintf (p, len, "%s%d", first ? "" : ",", i);
		2598	len -= cnt;
		2599	p += cnt;
		2600	first = false;
		2601	}
2769		2602	}
2770	if (floating_ref) {	2603
2771	free_string(canonical_key);
2772	}
2773
2774	return ret;	2604	return desc;
2775	}	2605	}
		2606
		2607	// return a suitable string describing an object in enough detail to find it
		2608	const char *
		2609	object::debug_desc (char *info) const
		2610	{
		2611	char flagdesc[512];
		2612	char info2[256 * 4];
		2613	char *p = info;
		2614
		2615	p += snprintf (p, 512, "{cnt:%d,uuid:<1,%" PRIx64 ">,name:\"%s%s%s\",flags:[%s],type:%d}",
		2616	count, uuid.seq,
		2617	&name,
		2618	title ? "\",title:" : "",
		2619	title ? (const char *)title : "",
		2620	flag_desc (flagdesc, 512), type);
		2621
		2622	if (env)
		2623	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));
		2624
		2625	if (map)
		2626	p += snprintf (p, 256, "(on %s@%d+%d)", &map->path, x, y);
		2627
		2628	return info;
		2629	}
		2630
		2631	const char *
		2632	object::debug_desc () const
		2633	{
		2634	static char info[256 * 4];
		2635	return debug_desc (info);
		2636	}
		2637

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