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Comparing deliantra/server/common/object.C (file contents):
Revision 1.8 by root, Tue Aug 29 08:01:35 2006 UTC vs.
Revision 1.113 by root, Tue Jan 9 21:32:41 2007 UTC

1	/*
2	* static char *rcsid_object_c =
3	* "$Id: object.C,v 1.8 2006/08/29 08:01:35 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	char *cp;
287	/* object *tmp;*/
288
289	if(op->arch!=NULL) {
290	strcat(errmsg,"arch ");
291	strcat(errmsg,op->arch->name?op->arch->name:"(null)");
292	strcat(errmsg,"\n");
293	if((cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)
294	strcat(errmsg,cp);
295	#if 0
296	/* Don't dump player diffs - they are too long, mostly meaningless, and
297	* will overflow the buffer.
298	* Changed so that we don't dump inventory either. This may
299	* also overflow the buffer.
300	*/
301	if(op->type!=PLAYER && (cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)
302	strcat(errmsg,cp);
303	for (tmp=op->inv; tmp; tmp=tmp->below)
304	dump_object2(tmp);
305	#endif
306	strcat(errmsg,"end\n");
307	} else {
308	strcat(errmsg,"Object ");
309	if (op->name==NULL) strcat(errmsg, "(null)");
310	else strcat(errmsg,op->name);
311	strcat(errmsg,"\n");
312	#if 0
313	if((cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)
314	strcat(errmsg,cp);
315	for (tmp=op->inv; tmp; tmp=tmp->below)
316	dump_object2(tmp);
317	#endif
318	strcat(errmsg,"end\n");
319	}
320	}
321
322	/*
323	* Dumps an object. Returns output in the static global errmsg array.
324	*/
325
326	void dump_object(object *op) {	364	dump_object (object *op)
327	if(op==NULL) {
328	strcpy(errmsg,"[NULL pointer]");
329	return;
330	}
331	errmsg[0]='\0';
332	dump_object2(op);
333	}
334
335	/* GROS - Dumps an object. Return the result into a string */
336	/* Note that no checking is done for the validity of the target string, so */
337	/* you need to be sure that you allocated enough space for it. */
338	void dump_me(object *op, char *outstr)
339	{	365	{
340	char *cp;	366	if (!op)
		367	return strdup ("[NULLOBJ]");
341		368
342	if(op==NULL)	369	object_freezer freezer;
343	{	370	save_object (freezer, op, 1);
344	strcpy(outstr,"[NULL pointer]");	371	return freezer.as_string ();
345	return;
346	}
347	outstr[0]='\0';
348
349	if(op->arch!=NULL)
350	{
351	strcat(outstr,"arch ");
352	strcat(outstr,op->arch->name?op->arch->name:"(null)");
353	strcat(outstr,"\n");
354	if((cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)
355	strcat(outstr,cp);
356	strcat(outstr,"end\n");
357	}
358	else
359	{
360	strcat(outstr,"Object ");
361	if (op->name==NULL)
362	strcat(outstr, "(null)");
363	else
364	strcat(outstr,op->name);
365	strcat(outstr,"\n");
366	strcat(outstr,"end\n");
367	}
368	}
369
370	/*
371	* This is really verbose...Can be triggered by the P key while in DM mode.
372	* All objects are dumped to stderr (or alternate logfile, if in server-mode)
373	*/
374
375	void dump_all_objects(void) {
376	object *op;
377	for(op=objects;op!=NULL;op=op->next) {
378	dump_object(op);
379	fprintf(logfile, "Object %d\n:%s\n", op->count, errmsg);
380	}
381	}	372	}
382		373
383	/*	374	/*
384	* 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
385	* multi-object 1 which is closest to the second object.	376	* multi-object 1 which is closest to the second object.
386	* If it's not a multi-object, it is returned.	377	* If it's not a multi-object, it is returned.
387	*/	378	*/
388		379
		380	object *
389	object *get_nearest_part(object *op, const object *pl) {	381	get_nearest_part (object *op, const object *pl)
		382	{
390	object *tmp,*closest;	383	object *tmp, *closest;
391	int last_dist,i;	384	int last_dist, i;
		385
392	if(op->more==NULL)	386	if (op->more == NULL)
393	return op;	387	return op;
394	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)
395	if((i=distance(tmp,pl))<last_dist)	389	if ((i = distance (tmp, pl)) < last_dist)
396	closest=tmp,last_dist=i;	390	closest = tmp, last_dist = i;
397	return closest;	391	return closest;
398	}	392	}
399		393
400	/*	394	/*
401	* 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.
402	*/	396	*/
403		397	object *
404	object *find_object(tag_t i) {	398	find_object (tag_t i)
405	object *op;	399	{
406	for(op=objects;op!=NULL;op=op->next)	400	for_all_objects (op)
407	if(op->count==i)	401	if (op->count == i)
408	break;
409	return op;	402	return op;
		403
		404	return 0;
410	}	405	}
411		406
412	/*	407	/*
413	* Returns the first object which has a name equal to the argument.	408	* Returns the first object which has a name equal to the argument.
414	* Used only by the patch command, but not all that useful.	409	* Used only by the patch command, but not all that useful.
415	* Enables features like "patch <name-of-other-player> food 999"	410	* Enables features like "patch <name-of-other-player> food 999"
416	*/	411	*/
417		412	object *
418	object *find_object_name(const char *str) {	413	find_object_name (const char *str)
419	const char *name=add_string(str);	414	{
		415	shstr_cmp str_ (str);
420	object *op;	416	object *op;
421	for(op=objects;op!=NULL;op=op->next)	417
		418	for_all_objects (op)
422	if(op->name==name)	419	if (op->name == str_)
423	break;	420	break;
424	free_string(name);	421
425	return op;	422	return op;
426	}	423	}
427		424
		425	void
428	void free_all_object_data(void) {	426	free_all_object_data ()
429	#ifdef MEMORY_DEBUG
430	object *op, *next;
431
432	for (op=free_objects; op!=NULL; ) {
433	next=op->next;
434	free(op);
435	nrofallocobjects--;
436	nroffreeobjects--;
437	op=next;
438	}
439	#endif
440	LOG(llevDebug,"%d allocated objects, %d free objects, STARMAX=%d\n",
441	nrofallocobjects, nroffreeobjects,STARTMAX);
442	}
443
444	/*
445	* Returns the object which this object marks as being the owner.
446	* A id-scheme is used to avoid pointing to objects which have been
447	* freed and are now reused. If this is detected, the owner is
448	* set to NULL, and NULL is returned.
449	* Changed 2004-02-12 - if the player is setting at the play again
450	* prompt, he is removed, and we don't want to treat him as an owner of
451	* anything, so check removed flag. I don't expect that this should break
452	* anything - once an object is removed, it is basically dead anyways.
453	*/
454
455	object *get_owner(object *op) {
456	if(op->owner==NULL)
457	return NULL;
458
459	if (!QUERY_FLAG(op->owner,FLAG_FREED) && !QUERY_FLAG(op->owner, FLAG_REMOVED) &&
460	op->owner->count==op->ownercount)
461	return op->owner;
462
463	op->owner=NULL;
464	op->ownercount=0;
465	return NULL;
466	}
467
468	void clear_owner(object *op)
469	{	427	{
470	if (!op) return;	428	LOG (llevDebug, "%d allocated objects\n", nrofallocobjects);
471
472	if (op->owner && op->ownercount == op->owner->count)
473	op->owner->refcount--;
474
475	op->owner = NULL;
476	op->ownercount = 0;
477	}	429	}
478
479
480		430
481	/*	431	/*
482	* Sets the owner and sets the skill and exp pointers to owner's current	432	* Sets the owner and sets the skill and exp pointers to owner's current
483	* skill and experience objects.	433	* skill and experience objects.
484	*/	434	*/
485	void set_owner (object *op, object *owner)	435	void
		436	object::set_owner (object *owner)
486	{	437	{
487	if(owner==NULL||op==NULL)	438	if (!owner)
488	return;	439	return;
489		440
490	/* next line added to allow objects which own objects */	441	/* next line added to allow objects which own objects */
491	/* Add a check for ownercounts in here, as I got into an endless loop	442	/* Add a check for ownercounts in here, as I got into an endless loop
492	* with the fireball owning a poison cloud which then owned the	443	* with the fireball owning a poison cloud which then owned the
493	* fireball. I believe that was caused by one of the objects getting	444	* fireball. I believe that was caused by one of the objects getting
494	* freed and then another object replacing it. Since the ownercounts	445	* freed and then another object replacing it. Since the ownercounts
495	* didn't match, this check is valid and I believe that cause is valid.	446	* didn't match, this check is valid and I believe that cause is valid.
496	*/	447	*/
497	while (owner->owner && owner!=owner->owner &&	448	while (owner->owner)
498	owner->ownercount==owner->owner->count) owner=owner->owner;	449	owner = owner->owner;
499		450
500	/* IF the owner still has an owner, we did not resolve to a final owner.
501	* so lets not add to that.
502	*/
503	if (owner->owner) return;
504
505	op->owner=owner;	451	this->owner = owner;
506
507	op->ownercount=owner->count;
508	owner->refcount++;
509
510	}
511
512	/* Set the owner to clone's current owner and set the skill and experience
513	* objects to clone's objects (typically those objects that where the owner's
514	* current skill and experience objects at the time when clone's owner was
515	* set - not the owner's current skill and experience objects).
516	*
517	* Use this function if player created an object (e.g. fire bullet, swarm
518	* spell), and this object creates further objects whose kills should be
519	* accounted for the player's original skill, even if player has changed
520	* skills meanwhile.
521	*/
522	void copy_owner (object *op, object *clone)
523	{
524	object *owner = get_owner (clone);
525	if (owner == NULL) {
526	/* players don't have owners - they own themselves. Update
527	* as appropriate.
528	*/
529	if (clone->type == PLAYER) owner=clone;
530	else return;
531	}
532	set_owner(op, owner);
533
534	}
535
536	/*
537	* Resets vital variables in an object
538	*/
539
540	void reset_object(object *op) {
541
542	op->name = NULL;
543	op->name_pl = NULL;
544	op->title = NULL;
545	op->race = NULL;
546	op->slaying = NULL;
547	op->skill = NULL;
548	op->msg = NULL;
549	op->materialname = NULL;
550	op->lore = NULL;
551	clear_object(op);
552	}	452	}
553		453
554	/* Zero the key_values on op, decrementing the shared-string	454	/* Zero the key_values on op, decrementing the shared-string
555	* refcounts and freeing the links.	455	* refcounts and freeing the links.
556	*/	456	*/
		457	static void
557	static void free_key_values(object * op) {	458	free_key_values (object *op)
558	key_value * i;	459	{
559	key_value * next = NULL;	460	for (key_value *i = op->key_values; i != 0;)
560		461	{
561	if (op->key_values == NULL) return;	462	key_value *next = i->next;
		463	delete i;
		464
		465	i = next;
562		466	}
563	for (i = op->key_values; i != NULL; i = next) {	467
564	/* Store next *first*. */
565	next = i->next;
566
567	if (i->key) FREE_AND_CLEAR_STR(i->key);
568	if (i->value) FREE_AND_CLEAR_STR(i->value);
569	i->next = NULL;
570	free(i);
571	}
572
573	op->key_values = NULL;	468	op->key_values = 0;
574	}	469	}
575		470
576
577	/*	471	/*
578	* clear_object() frees everything allocated by an object, and also
579	* clears all variables and flags to default settings.
580	*/
581
582	void clear_object(object *op) {
583	op->clear ();
584
585	event *evt;
586	event *evt2;
587
588	/* redo this to be simpler/more efficient. Was also seeing
589	* crashes in the old code. Move this to the top - am
590	* seeing periodic crashes in this code, and would like to have
591	* as much info available as possible (eg, object name).
592	*/
593	for (evt = op->events; evt; evt=evt2) {
594	evt2 = evt->next;
595
596	if (evt->hook != NULL) FREE_AND_CLEAR_STR(evt->hook);
597	if (evt->plugin != NULL) FREE_AND_CLEAR_STR(evt->plugin);
598	if (evt->options != NULL) FREE_AND_CLEAR_STR(evt->options);
599
600	free(evt);
601	}
602	op->events = NULL;
603
604	free_key_values(op);
605
606	/* the memset will clear all these values for us, but we need
607	* to reduce the refcount on them.
608	*/
609	if (op->name!=NULL) FREE_AND_CLEAR_STR(op->name);
610	if (op->name_pl!=NULL) FREE_AND_CLEAR_STR(op->name_pl);
611	if (op->title != NULL) FREE_AND_CLEAR_STR(op->title);
612	if (op->race!=NULL) FREE_AND_CLEAR_STR(op->race);
613	if (op->slaying!=NULL) FREE_AND_CLEAR_STR(op->slaying);
614	if (op->skill!=NULL) FREE_AND_CLEAR_STR(op->skill);
615	if (op->msg!=NULL) FREE_AND_CLEAR_STR(op->msg);
616	if (op->lore!=NULL) FREE_AND_CLEAR_STR(op->lore);
617	if (op->materialname!= NULL) FREE_AND_CLEAR_STR(op->materialname);
618
619
620	memset((void*)op, 0, sizeof (object_special));
621	/* Below here, we clear things that are not done by the memset,
622	* or set default values that are not zero.
623	*/
624	/* This is more or less true */
625	SET_FLAG(op, FLAG_REMOVED);
626
627
628	op->contr = NULL;
629	op->below=NULL;
630	op->above=NULL;
631	op->inv=NULL;
632	op->events=NULL;
633	op->container=NULL;
634	op->env=NULL;
635	op->more=NULL;
636	op->head=NULL;
637	op->map=NULL;
638	op->refcount=0;
639	op->active_next = NULL;
640	op->active_prev = NULL;
641	/* What is not cleared is next, prev, and count */
642
643	op->expmul=1.0;
644	op->face = blank_face;
645	op->attacked_by_count = (tag_t) -1;
646	if (settings.casting_time)
647	op->casting_time = -1;
648
649	}
650
651	/*
652	* copy object first frees everything allocated by the second object,	472	* copy_to first frees everything allocated by the dst object,
653	* and then copies the contends of the first object into the second	473	* and then copies the contents of itself into the second
654	* object, allocating what needs to be allocated. Basically, any	474	* object, allocating what needs to be allocated. Basically, any
655	* data that is malloc'd needs to be re-malloc/copied. Otherwise,	475	* data that is malloc'd needs to be re-malloc/copied. Otherwise,
656	* if the first object is freed, the pointers in the new object	476	* if the first object is freed, the pointers in the new object
657	* will point at garbage.	477	* will point at garbage.
658	*/	478	*/
		479	void
		480	object::copy_to (object *dst)
		481	{
		482	bool is_freed = QUERY_FLAG (dst, FLAG_FREED);
		483	bool is_removed = QUERY_FLAG (dst, FLAG_REMOVED);
659		484
660	void copy_object(object *op2, object *op) {	485	*(object_copy *)dst = *this;
661	int is_freed=QUERY_FLAG(op,FLAG_FREED),is_removed=QUERY_FLAG(op,FLAG_REMOVED);
662	event *evt, *evt2, *evt_new;
663		486
664	op->clear ();	487	if (is_freed)
		488	SET_FLAG (dst, FLAG_FREED);
665		489
666	/* Decrement the refcounts, but don't bother zeroing the fields;	490	if (is_removed)
667	they'll be overwritten by memcpy. */	491	SET_FLAG (dst, FLAG_REMOVED);
668	if(op->name!=NULL) free_string(op->name);
669	if(op->name_pl!=NULL) free_string(op->name_pl);
670	if(op->title!=NULL) free_string(op->title);
671	if(op->race!=NULL) free_string(op->race);
672	if(op->slaying!=NULL) free_string(op->slaying);
673	if(op->skill!=NULL) free_string(op->skill);
674	if(op->msg!=NULL) free_string(op->msg);
675	if(op->lore!=NULL) free_string(op->lore);
676	if(op->materialname != NULL) free_string(op->materialname);
677	if(op->custom_name != NULL) free_string(op->custom_name);
678		492
679	/* Basically, same code as from clear_object() */	493	if (speed < 0)
680	for (evt = op->events; evt; evt=evt2) {
681	evt2 = evt->next;
682
683	if (evt->hook != NULL) FREE_AND_CLEAR_STR(evt->hook);
684	if (evt->plugin != NULL) FREE_AND_CLEAR_STR(evt->plugin);
685	if (evt->options != NULL) FREE_AND_CLEAR_STR(evt->options);
686
687	free(evt);
688	}
689	op->events = NULL;
690
691	free_key_values(op);
692
693	*(object_special *)op = *(object_special *)op2;
694	op2->clone (op);
695
696	if(is_freed) SET_FLAG(op,FLAG_FREED);
697	if(is_removed) SET_FLAG(op,FLAG_REMOVED);
698	if(op->name!=NULL) add_refcount(op->name);
699	if(op->name_pl!=NULL) add_refcount(op->name_pl);
700	if(op->title!=NULL) add_refcount(op->title);
701	if(op->race!=NULL) add_refcount(op->race);
702	if(op->slaying!=NULL) add_refcount(op->slaying);
703	if(op->skill!=NULL) add_refcount(op->skill);
704	if(op->lore!=NULL) add_refcount(op->lore);
705	if(op->msg!=NULL) add_refcount(op->msg);
706	if(op->custom_name!=NULL) add_refcount(op->custom_name);
707	if (op->materialname != NULL) add_refcount(op->materialname);
708
709	if((op2->speed<0) && !editor)
710	op->speed_left=op2->speed_left-RANDOM()%200/100.0;	494	dst->speed_left = speed_left - RANDOM () % 200 / 100.0;
711		495
712	/* Copy over event information */
713	evt2 = NULL;
714	for (evt = op2->events; evt; evt=evt->next) {
715	evt_new = (event *) malloc(sizeof(event));
716	memcpy(evt_new, evt, sizeof(event));
717	if (evt_new->hook) add_refcount(evt_new->hook);
718	if (evt_new->plugin) add_refcount(evt_new->plugin);
719	if (evt_new->options) add_refcount(evt_new->options);
720	evt_new->next = NULL;
721
722	/* Try to be a little clever here, and store away the
723	* last event we copied, so that its simpler to update the
724	* pointer.
725	*/
726	if (evt2)
727	evt2->next = evt_new;
728	else
729	op->events = evt_new;
730
731	evt2 = evt_new;
732	}
733	/* Copy over key_values, if any. */	496	/* Copy over key_values, if any. */
734	if (op2->key_values != NULL) {	497	if (key_values)
		498	{
735	key_value * tail = NULL;	499	key_value *tail = 0;
736	key_value * i;	500	key_value *i;
737		501
738	op->key_values = NULL;	502	dst->key_values = 0;
739		503
740	for (i = op2->key_values; i != NULL; i = i->next) {	504	for (i = key_values; i; i = i->next)
741	key_value * new_link = (key_value *) malloc(sizeof(key_value));	505	{
		506	key_value *new_link = new key_value;
742		507
743	new_link->next = NULL;	508	new_link->next = 0;
744	new_link->key = add_refcount(i->key);	509	new_link->key = i->key;
745	if (i->value)
746	new_link->value = add_refcount(i->value);	510	new_link->value = i->value;
747	else
748	new_link->value = NULL;
749		511
750	/* Try and be clever here, too. */	512	/* Try and be clever here, too. */
751	if (op->key_values == NULL) {	513	if (!dst->key_values)
		514	{
752	op->key_values = new_link;	515	dst->key_values = new_link;
753	tail = new_link;	516	tail = new_link;
754	} else {
755	tail->next = new_link;
756	tail = new_link;
757	}	517	}
		518	else
		519	{
		520	tail->next = new_link;
		521	tail = new_link;
758	}	522	}
759	}	523	}
760
761	update_ob_speed(op);
762	}
763
764	/*
765	* expand_objects() allocates more objects for the list of unused objects.
766	* It is called from get_object() if the unused list is empty.
767	*/
768
769	void expand_objects(void) {
770	int i;
771	object *obj;
772	obj = (object *) CALLOC(OBJ_EXPAND,sizeof(object));
773
774	if(obj==NULL)
775	fatal(OUT_OF_MEMORY);
776	free_objects=obj;
777	obj[0].prev=NULL;
778	obj[0].next= &obj[1],
779	SET_FLAG(&(obj[0]), FLAG_REMOVED);
780	SET_FLAG(&(obj[0]), FLAG_FREED);
781
782	for(i=1;i<OBJ_EXPAND-1;i++) {
783	obj[i].next= &obj[i+1],
784	obj[i].prev= &obj[i-1],
785	SET_FLAG(&(obj[i]), FLAG_REMOVED);
786	SET_FLAG(&(obj[i]), FLAG_FREED);
787	}	524	}
788	obj[OBJ_EXPAND-1].prev= &obj[OBJ_EXPAND-2],
789	obj[OBJ_EXPAND-1].next=NULL,
790	SET_FLAG(&(obj[OBJ_EXPAND-1]), FLAG_REMOVED);
791	SET_FLAG(&(obj[OBJ_EXPAND-1]), FLAG_FREED);
792		525
793	nrofallocobjects += OBJ_EXPAND;	526	dst->set_speed (dst->speed);
794	nroffreeobjects += OBJ_EXPAND;
795	}	527	}
796		528
797	/*
798	* get_object() grabs an object from the list of unused objects, makes
799	* sure it is initialised, and returns it.
800	* If there are no free objects, expand_objects() is called to get more.
801	*/
802
803	object *get_object(void) {
804	object *op;	529	object *
805		530	object::clone ()
806	if(free_objects==NULL) {	531	{
807	expand_objects();	532	object *neu = create ();
808	}	533	copy_to (neu);
809	op=free_objects;
810	#ifdef MEMORY_DEBUG
811	/* The idea is hopefully by doing a realloc, the memory
812	* debugging program will now use the current stack trace to
813	* report leaks.
814	*/
815	op = realloc(op, sizeof(object));
816	SET_FLAG(op, FLAG_REMOVED);
817	SET_FLAG(op, FLAG_FREED);
818	#endif
819
820	if(!QUERY_FLAG(op,FLAG_FREED)) {
821	LOG(llevError,"Fatal: Getting busy object.\n");
822	}
823	free_objects=op->next;
824	if(free_objects!=NULL)
825	free_objects->prev=NULL;
826	op->count= ++ob_count;
827	op->name=NULL;
828	op->name_pl=NULL;
829	op->title=NULL;
830	op->race=NULL;
831	op->slaying=NULL;
832	op->skill = NULL;
833	op->lore=NULL;
834	op->msg=NULL;
835	op->materialname=NULL;
836	op->next=objects;
837	op->prev=NULL;
838	op->active_next = NULL;
839	op->active_prev = NULL;
840	if(objects!=NULL)
841	objects->prev=op;
842	objects=op;
843	clear_object(op);
844	SET_FLAG(op,FLAG_REMOVED);
845	nroffreeobjects--;
846	return op;	534	return neu;
847	}	535	}
848		536
849	/*	537	/*
850	* If an object with the IS_TURNABLE() flag needs to be turned due	538	* If an object with the IS_TURNABLE() flag needs to be turned due
851	* to the closest player being on the other side, this function can	539	* to the closest player being on the other side, this function can
852	* be called to update the face variable, _and_ how it looks on the map.	540	* be called to update the face variable, _and_ how it looks on the map.
853	*/	541	*/
854		542	void
855	void update_turn_face(object *op) {	543	update_turn_face (object *op)
		544	{
856	if(!QUERY_FLAG(op,FLAG_IS_TURNABLE)||op->arch==NULL)	545	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || !op->arch)
857	return;	546	return;
		547
858	SET_ANIMATION(op, op->direction);	548	SET_ANIMATION (op, op->direction);
859	update_object(op,UP_OBJ_FACE);	549	update_object (op, UP_OBJ_FACE);
860	}	550	}
861		551
862	/*	552	/*
863	* Updates the speed of an object. If the speed changes from 0 to another	553	* Updates the speed of an object. If the speed changes from 0 to another
864	* value, or vice versa, then add/remove the object from the active list.	554	* value, or vice versa, then add/remove the object from the active list.
865	* This function needs to be called whenever the speed of an object changes.	555	* This function needs to be called whenever the speed of an object changes.
866	*/	556	*/
867		557	void
868	void update_ob_speed(object *op) {	558	object::set_speed (float speed)
869	extern int arch_init;	559	{
870		560	if (flag [FLAG_FREED] && speed)
871	/* No reason putting the archetypes objects on the speed list,	561	{
872	* since they never really need to be updated.
873	*/
874
875	if (QUERY_FLAG(op, FLAG_FREED) && op->speed) {
876	LOG(llevError,"Object %s is freed but has speed.\n", op->name);	562	LOG (llevError, "Object %s is freed but has speed.\n", &name);
877	#ifdef MANY_CORES
878	abort();
879	#else
880	op->speed = 0;	563	speed = 0;
881	#endif
882	}	564	}
883	if (arch_init) {
884	return;
885	}
886	if (FABS(op->speed)>MIN_ACTIVE_SPEED) {
887	/* If already on active list, don't do anything */
888	if (op->active_next || op->active_prev || op==active_objects)
889	return;
890		565
891	/* process_events() expects us to insert the object at the beginning	566	this->speed = speed;
892	* of the list. */	567
893	op->active_next = active_objects;	568	if (has_active_speed ())
894	if (op->active_next!=NULL)	569	activate ();
895	op->active_next->active_prev = op;
896	active_objects = op;
897	}
898	else {	570	else
899	/* If not on the active list, nothing needs to be done */	571	deactivate ();
900	if (!op->active_next && !op->active_prev && op!=active_objects)
901	return;
902
903	if (op->active_prev==NULL) {
904	active_objects = op->active_next;
905	if (op->active_next!=NULL)
906	op->active_next->active_prev = NULL;
907	}
908	else {
909	op->active_prev->active_next = op->active_next;
910	if (op->active_next)
911	op->active_next->active_prev = op->active_prev;
912	}
913	op->active_next = NULL;
914	op->active_prev = NULL;
915	}
916	}	572	}
917		573
918	/* This function removes object 'op' from the list of active
919	* objects.
920	* This should only be used for style maps or other such
921	* reference maps where you don't want an object that isn't
922	* in play chewing up cpu time getting processed.
923	* The reverse of this is to call update_ob_speed, which
924	* will do the right thing based on the speed of the object.
925	*/
926	void remove_from_active_list(object *op)
927	{
928	/* If not on the active list, nothing needs to be done */
929	if (!op->active_next && !op->active_prev && op!=active_objects)
930	return;
931
932	if (op->active_prev==NULL) {
933	active_objects = op->active_next;
934	if (op->active_next!=NULL)
935	op->active_next->active_prev = NULL;
936	}
937	else {
938	op->active_prev->active_next = op->active_next;
939	if (op->active_next)
940	op->active_next->active_prev = op->active_prev;
941	}
942	op->active_next = NULL;
943	op->active_prev = NULL;
944	}
945
946	/*	574	/*
947	* update_object() updates the array which represents the map.	575	* update_object() updates the the map.
948	* It takes into account invisible objects (and represent squares covered	576	* It takes into account invisible objects (and represent squares covered
949	* by invisible objects by whatever is below them (unless it's another	577	* by invisible objects by whatever is below them (unless it's another
950	* invisible object, etc...)	578	* invisible object, etc...)
951	* If the object being updated is beneath a player, the look-window	579	* If the object being updated is beneath a player, the look-window
952	* of that player is updated (this might be a suboptimal way of	580	* of that player is updated (this might be a suboptimal way of
953	* updating that window, though, since update_object() is called _often_)	581	* updating that window, though, since update_object() is called _often_)
954	*	582	*
955	* action is a hint of what the caller believes need to be done.	583	* action is a hint of what the caller believes need to be done.
956	* For example, if the only thing that has changed is the face (due to
957	* an animation), we don't need to call update_position until that actually
958	* comes into view of a player. OTOH, many other things, like addition/removal
959	* of walls or living creatures may need us to update the flags now.
960	* current action are:	584	* current action are:
961	* UP_OBJ_INSERT: op was inserted	585	* UP_OBJ_INSERT: op was inserted
962	* UP_OBJ_REMOVE: op was removed	586	* UP_OBJ_REMOVE: op was removed
963	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update	587	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update
964	* as that is easier than trying to look at what may have changed.	588	* as that is easier than trying to look at what may have changed.
965	* UP_OBJ_FACE: only the objects face has changed.	589	* UP_OBJ_FACE: only the objects face has changed.
966	*/	590	*/
967		591	void
968	void update_object(object *op, int action) {	592	update_object (object *op, int action)
969	int update_now=0, flags;	593	{
970	MoveType move_on, move_off, move_block, move_slow;	594	MoveType move_on, move_off, move_block, move_slow;
971		595
972	if (op == NULL) {	596	if (op == NULL)
		597	{
973	/* this should never happen */	598	/* this should never happen */
974	LOG(llevDebug,"update_object() called for NULL object.\n");	599	LOG (llevDebug, "update_object() called for NULL object.\n");
975	return;	600	return;
976	}
977		601	}
978	if(op->env!=NULL) {	602
		603	if (op->env)
		604	{
979	/* Animation is currently handled by client, so nothing	605	/* Animation is currently handled by client, so nothing
980	* to do in this case.	606	* to do in this case.
981	*/	607	*/
982	return;	608	return;
983	}	609	}
984		610
985	/* If the map is saving, don't do anything as everything is	611	/* If the map is saving, don't do anything as everything is
986	* going to get freed anyways.	612	* going to get freed anyways.
987	*/	613	*/
988	if (!op->map || op->map->in_memory == MAP_SAVING) return;	614	if (!op->map || op->map->in_memory == MAP_SAVING)
989		615	return;
		616
990	/* make sure the object is within map boundaries */	617	/* make sure the object is within map boundaries */
991	if (op->x < 0 || op->x >= MAP_WIDTH(op->map) ||	618	if (op->x < 0 || op->x >= op->map->width || op->y < 0 || op->y >= op->map->height)
992	op->y < 0 || op->y >= MAP_HEIGHT(op->map)) {	619	{
993	LOG(llevError,"update_object() called for object out of map!\n");	620	LOG (llevError, "update_object() called for object out of map!\n");
994	#ifdef MANY_CORES	621	#ifdef MANY_CORES
995	abort();	622	abort ();
996	#endif	623	#endif
997	return;	624	return;
998	}
999		625	}
1000	flags = GET_MAP_FLAGS(op->map, op->x, op->y);
1001	SET_MAP_FLAGS(op->map, op->x, op->y, flags | P_NEED_UPDATE);
1002	move_slow = GET_MAP_MOVE_SLOW(op->map, op->x, op->y);
1003	move_on = GET_MAP_MOVE_ON(op->map, op->x, op->y);
1004	move_block = GET_MAP_MOVE_BLOCK(op->map, op->x, op->y);
1005	move_off = GET_MAP_MOVE_OFF(op->map, op->x, op->y);
1006		626
		627	mapspace &m = op->ms ();
		628
		629	if (!(m.flags_ & P_UPTODATE))
		630	/* nop */;
1007	if (action == UP_OBJ_INSERT) {	631	else if (action == UP_OBJ_INSERT)
		632	{
		633	// this is likely overkill, TODO: revisit (schmorp)
1008	if (QUERY_FLAG(op, FLAG_BLOCKSVIEW) && !(flags & P_BLOCKSVIEW))	634	if ((QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(m.flags_ & P_BLOCKSVIEW))
1009	update_now=1;
1010
1011	if (QUERY_FLAG(op, FLAG_NO_MAGIC) && !(flags & P_NO_MAGIC))	635	|| (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(m.flags_ & P_NO_MAGIC))
1012	update_now=1;	636	|| (op->type == PLAYER && !(m.flags_ & P_PLAYER))
1013		637	|| (op->type == SAFE_GROUND && !(m.flags_ & P_SAFE))
		638	|| (QUERY_FLAG (op, FLAG_ALIVE) && !(m.flags_ & P_IS_ALIVE))
1014	if (QUERY_FLAG(op, FLAG_DAMNED) && !(flags & P_NO_CLERIC))	639	|| (QUERY_FLAG (op, FLAG_DAMNED) && !(m.flags_ & P_NO_CLERIC))
1015	update_now=1;	640	|| (m.move_on | op->move_on ) != m.move_on
1016
1017	if (QUERY_FLAG(op, FLAG_ALIVE) && !(flags & P_IS_ALIVE))
1018	update_now=1;
1019
1020	if ((move_on | op->move_on) != move_on) update_now=1;
1021	if ((move_off | op->move_off) != move_off) update_now=1;	641	|| (m.move_off | op->move_off ) != m.move_off
		642	|| (m.move_slow | op->move_slow) != m.move_slow
1022	/* This isn't perfect, but I don't expect a lot of objects to	643	/* This isn't perfect, but I don't expect a lot of objects to
1023	* to have move_allow right now.	644	* to have move_allow right now.
1024	*/	645	*/
1025	if (((move_block | op->move_block) & ~op->move_allow) != move_block)	646	|| ((m.move_block | op->move_block) & ~op->move_allow) != m.move_block
1026	update_now=1;	647	|| 1) // the above is not strong enough a test to skip updating. los maybe? TODO (Schmorp)
1027	if ((move_slow | op->move_slow) != move_slow) update_now=1;	648	m.flags_ = 0;
1028	}	649	}
1029	/* if the object is being removed, we can't make intelligent	650	/* if the object is being removed, we can't make intelligent
1030	* decisions, because remove_ob can't really pass the object	651	* decisions, because remove_ob can't really pass the object
1031	* that is being removed.	652	* that is being removed.
1032	*/	653	*/
1033	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE) {	654	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)
1034	update_now=1;	655	m.flags_ = 0;
1035	} else if (action == UP_OBJ_FACE) {	656	else if (action == UP_OBJ_FACE)
1036	/* Nothing to do for that case */	657	/* Nothing to do for that case */ ;
1037	}
1038	else {	658	else
1039	LOG(llevError,"update_object called with invalid action: %d\n", action);	659	LOG (llevError, "update_object called with invalid action: %d\n", action);
1040	}
1041		660
1042	if (update_now) {
1043	SET_MAP_FLAGS(op->map, op->x, op->y, flags | P_NO_ERROR | P_NEED_UPDATE);
1044	update_position(op->map, op->x, op->y);
1045	}
1046
1047	if(op->more!=NULL)	661	if (op->more)
1048	update_object(op->more, action);	662	update_object (op->more, action);
1049	}	663	}
1050		664
		665	object::object ()
		666	{
		667	SET_FLAG (this, FLAG_REMOVED);
1051		668
1052	/*	669	expmul = 1.0;
1053	* free_object() frees everything allocated by an object, removes	670	face = blank_face;
1054	* it from the list of used objects, and puts it on the list of
1055	* free objects. The IS_FREED() flag is set in the object.
1056	* The object must have been removed by remove_ob() first for
1057	* this function to succeed.
1058	*
1059	* If free_inventory is set, free inventory as well. Else drop items in
1060	* inventory to the ground.
1061	*/
1062
1063	void free_object(object *ob) {
1064	free_object2(ob, 0);
1065	}	671	}
1066	void free_object2(object *ob, int free_inventory) {
1067	object *tmp,*op;
1068		672
1069	ob->clear ();	673	object::~object ()
		674	{
		675	free_key_values (this);
		676	}
1070		677
1071	if (!QUERY_FLAG(ob,FLAG_REMOVED)) {	678	static int object_count;
1072	LOG(llevDebug,"Free object called with non removed object\n");	679
1073	dump_object(ob);	680	void object::link ()
1074	#ifdef MANY_CORES	681	{
1075	abort();	682	assert (!index);//D
1076	#endif	683	uuid = gen_uuid ();
1077	}	684	count = ++object_count;
1078	if(QUERY_FLAG(ob,FLAG_FRIENDLY)) {	685
1079	LOG(llevMonster,"Warning: tried to free friendly object.\n");	686	refcnt_inc ();
1080	remove_friendly_object(ob);	687	objects.insert (this);
1081	}	688	}
1082	if(QUERY_FLAG(ob,FLAG_FREED)) {	689
1083	dump_object(ob);	690	void object::unlink ()
1084	LOG(llevError,"Trying to free freed object.\n%s\n",errmsg);	691	{
		692	assert (index);//D
		693	objects.erase (this);
		694	refcnt_dec ();
		695	}
		696
		697	void
		698	object::activate ()
		699	{
		700	/* If already on active list, don't do anything */
		701	if (active)
1085	return;	702	return;
		703
		704	if (has_active_speed ())
		705	actives.insert (this);
		706	}
		707
		708	void
		709	object::activate_recursive ()
		710	{
		711	activate ();
		712
		713	for (object *op = inv; op; op = op->below)
		714	op->activate_recursive ();
		715	}
		716
		717	/* This function removes object 'op' from the list of active
		718	* objects.
		719	* This should only be used for style maps or other such
		720	* reference maps where you don't want an object that isn't
		721	* in play chewing up cpu time getting processed.
		722	* The reverse of this is to call update_ob_speed, which
		723	* will do the right thing based on the speed of the object.
		724	*/
		725	void
		726	object::deactivate ()
		727	{
		728	/* If not on the active list, nothing needs to be done */
		729	if (!active)
		730	return;
		731
		732	actives.erase (this);
		733	}
		734
		735	void
		736	object::deactivate_recursive ()
		737	{
		738	for (object *op = inv; op; op = op->below)
		739	op->deactivate_recursive ();
		740
		741	deactivate ();
		742	}
		743
		744	void
		745	object::set_flag_inv (int flag, int value)
		746	{
		747	for (object *op = inv; op; op = op->below)
1086	}	748	{
1087	if(ob->more!=NULL) {	749	op->flag [flag] = value;
1088	free_object2(ob->more, free_inventory);	750	op->set_flag_inv (flag, value);
1089	ob->more=NULL;
1090	}	751	}
1091	if (ob->inv) {	752	}
		753
		754	/*
		755	* Remove and free all objects in the inventory of the given object.
		756	* object.c ?
		757	*/
		758	void
		759	object::destroy_inv (bool drop_to_ground)
		760	{
		761	// need to check first, because the checks below might segfault
		762	// as we might be on an invalid mapspace and crossfire code
		763	// is too buggy to ensure that the inventory is empty.
		764	// corollary: if you create arrows etc. with stuff in tis inventory,
		765	// cf will crash below with off-map x and y
		766	if (!inv)
		767	return;
		768
1092	/* Only if the space blocks everything do we not process -	769	/* Only if the space blocks everything do we not process -
1093	* if some form of movemnt is allowed, let objects	770	* if some form of movement is allowed, let objects
1094	* drop on that space.	771	* drop on that space.
1095	*/	772	*/
1096	if (free_inventory || ob->map==NULL || ob->map->in_memory!=MAP_IN_MEMORY ||	773	if (!drop_to_ground
1097	(GET_MAP_MOVE_BLOCK(ob->map, ob->x, ob->y) == MOVE_ALL))	774	|| !map
1098	{	775	|| map->in_memory != MAP_IN_MEMORY
1099	op=ob->inv;	776	|| ms ().move_block == MOVE_ALL)
1100	while(op!=NULL) {
1101	tmp=op->below;
1102	remove_ob(op);
1103	free_object2(op, free_inventory);
1104	op=tmp;
1105	}
1106	}
1107	else { /* Put objects in inventory onto this space */
1108	op=ob->inv;
1109	while(op!=NULL) {
1110	tmp=op->below;
1111	remove_ob(op);
1112	if(QUERY_FLAG(op,FLAG_STARTEQUIP)||QUERY_FLAG(op,FLAG_NO_DROP) ||
1113	op->type==RUNE || op->type==TRAP || QUERY_FLAG(op,FLAG_IS_A_TEMPLATE))
1114	free_object(op);
1115	else {
1116	op->x=ob->x;
1117	op->y=ob->y;
1118	insert_ob_in_map(op,ob->map,NULL,0); /* Insert in same map as the envir */
1119	}
1120	op=tmp;
1121	}
1122	}
1123	}
1124	/* Remove object from the active list */
1125	ob->speed = 0;
1126	update_ob_speed(ob);
1127
1128	SET_FLAG(ob, FLAG_FREED);
1129	ob->count = 0;
1130
1131	/* Remove this object from the list of used objects */
1132	if(ob->prev==NULL) {
1133	objects=ob->next;
1134	if(objects!=NULL)
1135	objects->prev=NULL;
1136	}
1137	else {
1138	ob->prev->next=ob->next;
1139	if(ob->next!=NULL)
1140	ob->next->prev=ob->prev;
1141	}
1142
1143	if(ob->name!=NULL) FREE_AND_CLEAR_STR(ob->name);
1144	if(ob->name_pl!=NULL) FREE_AND_CLEAR_STR(ob->name_pl);
1145	if(ob->title!=NULL) FREE_AND_CLEAR_STR(ob->title);
1146	if(ob->race!=NULL) FREE_AND_CLEAR_STR(ob->race);
1147	if(ob->slaying!=NULL) FREE_AND_CLEAR_STR(ob->slaying);
1148	if(ob->skill!=NULL) FREE_AND_CLEAR_STR(ob->skill);
1149	if(ob->lore!=NULL) FREE_AND_CLEAR_STR(ob->lore);
1150	if(ob->msg!=NULL) FREE_AND_CLEAR_STR(ob->msg);
1151	if(ob->materialname!=NULL) FREE_AND_CLEAR_STR(ob->materialname);
1152
1153		777	{
1154	/* Why aren't events freed? */	778	while (inv)
1155	free_key_values(ob);	779	{
		780	inv->destroy_inv (drop_to_ground);
		781	inv->destroy ();
		782	}
		783	}
		784	else
		785	{ /* Put objects in inventory onto this space */
		786	while (inv)
		787	{
		788	object *op = inv;
1156		789
1157	#if 0 /* MEMORY_DEBUG*/	790	if (op->flag [FLAG_STARTEQUIP]
1158	/* This is a nice idea. Unfortunately, a lot of the code in crossfire	791	|| op->flag [FLAG_NO_DROP]
1159	* presumes the freed_object will stick around for at least a little	792	|| op->type == RUNE
1160	* bit	793	|| op->type == TRAP
1161	*/	794	|| op->flag [FLAG_IS_A_TEMPLATE]
1162	/* this is necessary so that memory debugging programs will	795	|| op->flag [FLAG_DESTROY_ON_DEATH])
1163	* be able to accurately report source of malloc. If we recycle	796	op->destroy ();
1164	* objects, then some other area may be doing the get_object	797	else
1165	* and not freeing it, but the original one that malloc'd the	798	map->insert (op, x, y);
1166	* object will get the blame.	799	}
1167	*/	800	}
1168	free(ob);
1169	#else
1170
1171	/* Now link it with the free_objects list: */
1172	ob->prev=NULL;
1173	ob->next=free_objects;
1174	if(free_objects!=NULL)
1175	free_objects->prev=ob;
1176	free_objects=ob;
1177	nroffreeobjects++;
1178	#endif
1179	}	801	}
1180		802
1181	/*	803	object *object::create ()
1182	* count_free() returns the number of objects on the list of free objects.	804	{
1183	*/
1184
1185	int count_free(void) {
1186	int i=0;
1187	object *tmp=free_objects;	805	object *op = new object;
1188	while(tmp!=NULL)	806	op->link ();
1189	tmp=tmp->next, i++;
1190	return i;	807	return op;
1191	}	808	}
1192		809
1193	/*	810	void
1194	* count_used() returns the number of objects on the list of used objects.	811	object::do_destroy ()
1195	*/	812	{
		813	attachable::do_destroy ();
1196		814
1197	int count_used(void) {	815	if (flag [FLAG_IS_LINKED])
1198	int i=0;	816	remove_button_link (this);
1199	object *tmp=objects;	817
1200	while(tmp!=NULL)	818	if (flag [FLAG_FRIENDLY])
1201	tmp=tmp->next, i++;	819	remove_friendly_object (this);
		820
		821	if (!flag [FLAG_REMOVED])
		822	remove ();
		823
		824	destroy_inv (true);
		825
		826	deactivate ();
		827	unlink ();
		828
		829	flag [FLAG_FREED] = 1;
		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 ())
1202	return i;	870	return;
1203	}
1204		871
1205	/*	872	if (destroy_inventory)
1206	* count_active() returns the number of objects on the list of active objects.	873	destroy_inv (false);
1207	*/
1208		874
1209	int count_active(void) {	875	attachable::destroy ();
1210	int i=0;
1211	object *tmp=active_objects;
1212	while(tmp!=NULL)
1213	tmp=tmp->active_next, i++;
1214	return i;
1215	}	876	}
1216		877
1217	/*	878	/*
1218	* sub_weight() recursively (outwards) subtracts a number from the	879	* sub_weight() recursively (outwards) subtracts a number from the
1219	* 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)).
1220	*/	881	*/
1221		882	void
1222	void sub_weight (object *op, signed long weight) {	883	sub_weight (object *op, signed long weight)
		884	{
1223	while (op != NULL) {	885	while (op != NULL)
		886	{
1224	if (op->type == CONTAINER) {	887	if (op->type == CONTAINER)
1225	weight=(signed long)(weight*(100-op->stats.Str)/100);	888	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1226	}	889
1227	op->carrying-=weight;	890	op->carrying -= weight;
1228	op = op->env;	891	op = op->env;
1229	}	892	}
1230	}	893	}
1231		894
1232	/* remove_ob(op):	895	/* op->remove ():
1233	* 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
1234	* 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
1235	* object will have no environment. If the object previously had an	898	* object will have no environment. If the object previously had an
1236	* environment, the x and y coordinates will be updated to	899	* environment, the x and y coordinates will be updated to
1237	* the previous environment.	900	* the previous environment.
1238	* Beware: This function is called from the editor as well!	901	* Beware: This function is called from the editor as well!
1239	*/	902	*/
1240		903	void
1241	void remove_ob(object *op) {	904	object::remove ()
		905	{
1242	object *tmp,*last=NULL;	906	object *tmp, *last = 0;
1243	object *otmp;	907	object *otmp;
1244	tag_t tag;
1245	int check_walk_off;
1246	mapstruct *m;
1247	sint16 x,y;
1248
1249		908
1250	if(QUERY_FLAG(op,FLAG_REMOVED)) {	909	if (QUERY_FLAG (this, FLAG_REMOVED))
1251	dump_object(op);	910	return;
1252	LOG(llevError,"Trying to remove removed object.\n%s\n",errmsg);
1253		911
1254	/* Changed it to always dump core in this case. As has been learned
1255	* in the past, trying to recover from errors almost always
1256	* make things worse, and this is a real error here - something
1257	* that should not happen.
1258	* Yes, if this was a mission critical app, trying to do something
1259	* to recover may make sense, but that is because failure of the app
1260	* may have other disastrous problems. Cf runs out of a script
1261	* so is easily enough restarted without any real problems.
1262	* MSW 2001-07-01
1263	*/
1264	abort();
1265	}
1266	if(op->more!=NULL)
1267	remove_ob(op->more);
1268
1269	SET_FLAG(op, FLAG_REMOVED);	912	SET_FLAG (this, FLAG_REMOVED);
		913	INVOKE_OBJECT (REMOVE, this);
1270		914
		915	if (more)
		916	more->remove ();
		917
1271	/*	918	/*
1272	* In this case, the object to be removed is in someones	919	* In this case, the object to be removed is in someones
1273	* inventory.	920	* inventory.
1274	*/	921	*/
1275	if(op->env!=NULL) {	922	if (env)
		923	{
1276	if(op->nrof)	924	if (nrof)
1277	sub_weight(op->env, op->weight*op->nrof);	925	sub_weight (env, weight * nrof);
1278	else	926	else
1279	sub_weight(op->env, op->weight+op->carrying);	927	sub_weight (env, weight + carrying);
1280		928
1281	/* 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
1282	* made to players inventory. If set, avoiding the call	930	* made to players inventory. If set, avoiding the call
1283	* to save cpu time.	931	* to save cpu time.
1284	*/	932	*/
1285	if ((otmp=is_player_inv(op->env))!=NULL && otmp->contr &&	933	if ((otmp = in_player ()) && otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1286	!QUERY_FLAG(otmp,FLAG_NO_FIX_PLAYER))	934	otmp->update_stats ();
1287	fix_player(otmp);
1288		935
1289	if(op->above!=NULL)	936	if (above)
1290	op->above->below=op->below;	937	above->below = below;
1291	else	938	else
1292	op->env->inv=op->below;	939	env->inv = below;
1293		940
1294	if(op->below!=NULL)	941	if (below)
1295	op->below->above=op->above;	942	below->above = above;
1296		943
1297	/* we set up values so that it could be inserted into	944	/* we set up values so that it could be inserted into
1298	* 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
1299	* 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
1300	*/	977	*/
1301	op->x=op->env->x,op->y=op->env->y;	978	if (GET_MAP_OB (map, x, y) != this)
1302	op->ox=op->x,op->oy=op->y;	979	{
1303	op->map=op->env->map;	980	char *dump = dump_object (this);
1304	op->above=NULL,op->below=NULL;	981	LOG (llevError,
1305	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)
1306	return;	996	return;
1307	}
1308		997
1309	/* If we get here, we are removing it from a map */	998	int check_walk_off = !flag [FLAG_NO_APPLY];
1310	if (op->map == NULL) return;
1311		999
1312	x = op->x;	1000	for (tmp = map->at (x, y).bot; tmp; tmp = tmp->above)
1313	y = op->y;
1314	m = get_map_from_coord(op->map, &x, &y);
1315
1316	if (!m) {
1317	LOG(llevError,"remove_ob called when object was on map but appears to not be within valid coordinates? %s (%d,%d)\n",
1318	op->map->path, op->x, op->y);
1319	/* in old days, we used to set x and y to 0 and continue.
1320	* it seems if we get into this case, something is probablye
1321	* screwed up and should be fixed.
1322	*/
1323	abort();
1324	}
1325	if (op->map != m) {
1326	LOG(llevDebug,"remove_ob: Object not really on map it claimed to be on? %s != %s, %d,%d != %d,%d\n",
1327	op->map->path, m->path, op->x, op->y, x, y);
1328	}
1329
1330	/* Re did the following section of code - it looks like it had
1331	* lots of logic for things we no longer care about
1332	*/
1333
1334	/* link the object above us */
1335	if (op->above)
1336	op->above->below=op->below;
1337	else
1338	SET_MAP_TOP(m,x,y,op->below); /* we were top, set new top */
1339
1340	/* Relink the object below us, if there is one */
1341	if(op->below) {
1342	op->below->above=op->above;
1343	} else {
1344	/* Nothing below, which means we need to relink map object for this space
1345	* use translated coordinates in case some oddness with map tiling is
1346	* evident
1347	*/
1348	if(GET_MAP_OB(m,x,y)!=op) {
1349	dump_object(op);
1350	LOG(llevError,"remove_ob: GET_MAP_OB does not return object to be removed even though it appears to be on the bottom?\n%s\n", errmsg);
1351	dump_object(GET_MAP_OB(m,x,y));
1352	LOG(llevError,"%s\n",errmsg);
1353	}	1001	{
1354	SET_MAP_OB(m,x,y,op->above); /* goes on above it. */
1355	}
1356	op->above=NULL;
1357	op->below=NULL;
1358
1359	if (op->map->in_memory == MAP_SAVING)
1360	return;
1361
1362	tag = op->count;
1363	check_walk_off = ! QUERY_FLAG (op, FLAG_NO_APPLY);
1364	for(tmp=GET_MAP_OB(m,x,y);tmp!=NULL;tmp=tmp->above) {
1365	/* 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
1366	* being removed.	1003	* being removed.
1367	*/	1004	*/
1368		1005
1369	if(tmp->type==PLAYER && tmp!=op) {	1006	if (tmp->type == PLAYER && tmp != this)
		1007	{
1370	/* If a container that the player is currently using somehow gets	1008	/* If a container that the player is currently using somehow gets
1371	* removed (most likely destroyed), update the player view	1009	* removed (most likely destroyed), update the player view
1372	* appropriately.	1010	* appropriately.
1373	*/	1011	*/
1374	if (tmp->container==op) {	1012	if (tmp->container == this)
1375	CLEAR_FLAG(op, FLAG_APPLIED);	1013	{
		1014	flag [FLAG_APPLIED] = 0;
1376	tmp->container=NULL;	1015	tmp->container = 0;
		1016	}
		1017
		1018	if (tmp->contr->ns)
		1019	tmp->contr->ns->floorbox_update ();
1377	}	1020	}
1378	tmp->contr->socket.update_look=1;	1021
1379	}
1380	/* See if player moving off should effect something */	1022	/* See if object moving off should effect something */
1381	if (check_walk_off && ((op->move_type & tmp->move_off) &&	1023	if (check_walk_off
		1024	&& ((move_type & tmp->move_off)
1382	(op->move_type & ~tmp->move_off & ~tmp->move_block)==0)) {	1025	&& (move_type & ~tmp->move_off & ~tmp->move_block) == 0))
1383		1026	{
1384	move_apply(tmp, op, NULL);	1027	move_apply (tmp, this, 0);
		1028
1385	if (was_destroyed (op, tag)) {	1029	if (destroyed ())
1386	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 ());
1387	"leaving object\n", tmp->name, tmp->arch->name);
1388	}	1031	}
1389	}
1390		1032
1391	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */	1033	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */
1392		1034	//TODO: why is this horrible hacka fix? get rid of this code=bug! (schmorp)
1393	if(tmp->above == tmp)	1035	if (tmp->above == tmp)
1394	tmp->above = NULL;	1036	tmp->above = 0;
		1037
1395	last=tmp;	1038	last = tmp;
1396	}	1039	}
		1040
1397	/* last == NULL of there are no objects on this space */	1041	/* last == NULL if there are no objects on this space */
1398	if (last==NULL) {	1042	//TODO: this makes little sense, why only update the topmost object?
1399	/* set P_NEED_UPDATE, otherwise update_position will complain. In theory,	1043	if (!last)
1400	* we could preserve the flags (GET_MAP_FLAGS), but update_position figures	1044	map->at (x, y).flags_ = 0;
1401	* those out anyways, and if there are any flags set right now, they won't
1402	* be correct anyways.
1403	*/
1404	SET_MAP_FLAGS(op->map, op->x, op->y, P_NEED_UPDATE);
1405	update_position(op->map, op->x, op->y);
1406	}
1407	else	1045	else
1408	update_object(last, UP_OBJ_REMOVE);	1046	update_object (last, UP_OBJ_REMOVE);
1409		1047
1410	if(QUERY_FLAG(op,FLAG_BLOCKSVIEW)|| (op->glow_radius != 0))	1048	if (flag [FLAG_BLOCKSVIEW] || glow_radius)
1411	update_all_los(op->map, op->x, op->y);	1049	update_all_los (map, x, y);
1412		1050	}
1413	}	1051	}
1414		1052
1415	/*	1053	/*
1416	* merge_ob(op,top):	1054	* merge_ob(op,top):
1417	*	1055	*
1418	* This function goes through all objects below and including top, and	1056	* This function goes through all objects below and including top, and
1419	* merges op to the first matching object.	1057	* merges op to the first matching object.
1420	* If top is NULL, it is calculated.	1058	* If top is NULL, it is calculated.
1421	* 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
1422	*/	1060	*/
1423		1061	object *
1424	object *merge_ob(object *op, object *top) {	1062	merge_ob (object *op, object *top)
		1063	{
1425	if(!op->nrof)	1064	if (!op->nrof)
1426	return 0;	1065	return 0;
1427	if(top==NULL)	1066
		1067	if (top)
1428	for(top=op;top!=NULL&&top->above!=NULL;top=top->above);	1068	for (top = op; top && top->above; top = top->above)
		1069	;
		1070
1429	for(;top!=NULL;top=top->below) {	1071	for (; top; top = top->below)
		1072	{
1430	if(top==op)	1073	if (top == op)
1431	continue;	1074	continue;
1432	if (CAN_MERGE(op,top))	1075
1433	{	1076	if (object::can_merge (op, top))
		1077	{
1434	top->nrof+=op->nrof;	1078	top->nrof += op->nrof;
		1079
1435	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/	1080	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/
1436	op->weight = 0; /* Don't want any adjustements now */	1081	op->weight = 0; /* Don't want any adjustements now */
1437	remove_ob(op);	1082	op->destroy ();
1438	free_object(op);
1439	return top;	1083	return top;
1440	}	1084	}
1441	}	1085	}
		1086
1442	return NULL;	1087	return 0;
1443	}	1088	}
1444		1089
1445	/*	1090	/*
1446	* 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
1447	* job preparing multi-part monsters	1092	* job preparing multi-part monsters
1448	*/	1093	*/
		1094	object *
1449	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)
1450	object* tmp;	1096	{
1451	if (op->head)	1097	for (object *tmp = op->head_ (); tmp; tmp = tmp->more)
1452	op=op->head;	1098	{
1453	for (tmp=op;tmp;tmp=tmp->more){
1454	tmp->x=x+tmp->arch->clone.x;	1099	tmp->x = x + tmp->arch->clone.x;
1455	tmp->y=y+tmp->arch->clone.y;	1100	tmp->y = y + tmp->arch->clone.y;
1456	}	1101	}
		1102
1457	return insert_ob_in_map (op, m, originator, flag);	1103	return insert_ob_in_map (op, m, originator, flag);
1458	}	1104	}
1459		1105
1460	/*	1106	/*
1461	* insert_ob_in_map (op, map, originator, flag):	1107	* insert_ob_in_map (op, map, originator, flag):
1462	* This function inserts the object in the two-way linked list	1108	* This function inserts the object in the two-way linked list
…		…
1475	* Return value:	1121	* Return value:
1476	* new object if 'op' was merged with other object	1122	* new object if 'op' was merged with other object
1477	* NULL if 'op' was destroyed	1123	* NULL if 'op' was destroyed
1478	* just 'op' otherwise	1124	* just 'op' otherwise
1479	*/	1125	*/
1480		1126	object *
1481	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)
1482	{	1128	{
1483	object *tmp, *top, *floor=NULL;	1129	object *tmp, *top, *floor = NULL;
1484	sint16 x,y;	1130	sint16 x, y;
1485		1131
1486	if (QUERY_FLAG (op, FLAG_FREED)) {	1132	if (QUERY_FLAG (op, FLAG_FREED))
		1133	{
1487	LOG (llevError, "Trying to insert freed object!\n");	1134	LOG (llevError, "Trying to insert freed object!\n");
1488	return NULL;	1135	return NULL;
		1136	}
		1137
		1138	if (!m)
1489	}	1139	{
1490	if(m==NULL) {
1491	dump_object(op);	1140	char *dump = dump_object (op);
1492	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);
1493	return op;	1143	return op;
1494	}	1144	}
		1145
1495	if(out_of_map(m,op->x,op->y)) {	1146	if (out_of_map (m, op->x, op->y))
		1147	{
1496	dump_object(op);	1148	char *dump = dump_object (op);
1497	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);
1498	#ifdef MANY_CORES	1150	#ifdef MANY_CORES
1499	/* 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
1500	* 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
1501	* improperly inserted.	1153	* improperly inserted.
1502	*/	1154	*/
1503	abort();	1155	abort ();
1504	#endif	1156	#endif
		1157	free (dump);
1505	return op;	1158	return op;
1506	}	1159	}
		1160
1507	if(!QUERY_FLAG(op,FLAG_REMOVED)) {	1161	if (!QUERY_FLAG (op, FLAG_REMOVED))
		1162	{
1508	dump_object(op);	1163	char *dump = dump_object (op);
1509	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);
1510	return op;	1166	return op;
		1167	}
		1168
		1169	if (op->more)
1511	}	1170	{
1512	if(op->more!=NULL) {
1513	/* The part may be on a different map. */	1171	/* The part may be on a different map. */
1514		1172
1515	object *more = op->more;	1173	object *more = op->more;
1516		1174
1517	/* We really need the caller to normalize coordinates - if	1175	/* We really need the caller to normalise coordinates - if
1518	* 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
1519	* 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
1520	* is clear wrong do we normalize it.	1178	* is clear wrong do we normalise it.
1521	*/	1179	*/
1522	if (OUT_OF_REAL_MAP(more->map, more->x, more->y)) {	1180	if (OUT_OF_REAL_MAP (more->map, more->x, more->y))
1523	/* Debugging information so you can see the last coordinates this object had */
1524	more->ox = more->x;
1525	more->oy = more->y;
1526	more->map = get_map_from_coord(m, &more->x, &more->y);	1181	more->map = get_map_from_coord (m, &more->x, &more->y);
1527	} else if (!more->map) {	1182	else if (!more->map)
		1183	{
1528	/* For backwards compatibility - when not dealing with tiled maps,	1184	/* For backwards compatibility - when not dealing with tiled maps,
1529	* more->map should always point to the parent.	1185	* more->map should always point to the parent.
1530	*/	1186	*/
1531	more->map = m;	1187	more->map = m;
1532	}	1188	}
1533		1189
1534	if (insert_ob_in_map(more, more->map, originator, flag) == NULL) {	1190	if (insert_ob_in_map (more, more->map, originator, flag) == NULL)
		1191	{
1535	if ( ! op->head)	1192	if (!op->head)
1536	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
1537	return NULL;	1195	return 0;
1538	}	1196	}
1539	}	1197	}
		1198
1540	CLEAR_FLAG(op,FLAG_REMOVED);	1199	CLEAR_FLAG (op, FLAG_REMOVED);
1541		1200
1542	/* Debugging information so you can see the last coordinates this object had */
1543	op->ox=op->x;
1544	op->oy=op->y;
1545
1546	/* Ideally, the caller figures this out. However, it complicates a lot	1201	/* Ideally, the caller figures this out. However, it complicates a lot
1547	* of areas of callers (eg, anything that uses find_free_spot would now	1202	* of areas of callers (eg, anything that uses find_free_spot would now
1548	* need extra work	1203	* need extra work
1549	*/	1204	*/
1550	op->map=get_map_from_coord(m, &op->x, &op->y);	1205	op->map = get_map_from_coord (m, &op->x, &op->y);
1551	x = op->x;	1206	x = op->x;
1552	y = op->y;	1207	y = op->y;
1553		1208
1554	/* this has to be done after we translate the coordinates.	1209	/* this has to be done after we translate the coordinates.
1555	*/	1210	*/
1556	if(op->nrof && !(flag & INS_NO_MERGE)) {	1211	if (op->nrof && !(flag & INS_NO_MERGE))
1557	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)
1558	if (CAN_MERGE(op,tmp)) {	1213	if (object::can_merge (op, tmp))
		1214	{
1559	op->nrof+=tmp->nrof;	1215	op->nrof += tmp->nrof;
1560	remove_ob(tmp);	1216	tmp->destroy ();
1561	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;
1562	}	1277	}
1563	}
1564		1278
1565	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 */
1566	CLEAR_FLAG(op, FLAG_INV_LOCKED);	1280	top = last;
1567	if (!QUERY_FLAG(op, FLAG_ALIVE))
1568	CLEAR_FLAG(op, FLAG_NO_STEAL);
1569		1281
1570	if (flag & INS_BELOW_ORIGINATOR) {	1282	/* We let update_position deal with figuring out what the space
1571	if (originator->map != op->map || originator->x != op->x ||	1283	* looks like instead of lots of conditions here.
1572	originator->y != op->y) {	1284	* makes things faster, and effectively the same result.
1573	LOG(llevError,"insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");
1574	abort();
1575	}
1576	op->above = originator;
1577	op->below = originator->below;
1578	if (op->below) op->below->above = op;
1579	else SET_MAP_OB(op->map, op->x, op->y, op);
1580	/* since *below* originator, no need to update top */
1581	originator->below = op;
1582	} else {
1583	/* If there are other objects, then */
1584	if((! (flag & INS_MAP_LOAD)) && ((top=GET_MAP_OB(op->map,op->x,op->y))!=NULL)) {
1585	object *last=NULL;
1586	/*	1285	*/
1587	* If there are multiple objects on this space, we do some trickier handling.	1286
1588	* We've already dealt with merging if appropriate.	1287	/* Have object 'fall below' other objects that block view.
1589	* Generally, we want to put the new object on top. But if	1288	* Unless those objects are exits, type 66
1590	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last	1289	* If INS_ON_TOP is used, don't do this processing
1591	* floor, we want to insert above that and no further.	1290	* Need to find the object that in fact blocks view, otherwise
1592	* Also, if there are spell objects on this space, we stop processing	1291	* stacking is a bit odd.
1593	* once we get to them. This reduces the need to traverse over all of	1292	*/
1594	* them when adding another one - this saves quite a bit of cpu time	1293	if (!(flag & INS_ON_TOP) &&
1595	* 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))
1596	* 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.
1597	*/	1303	*/
1598		1304	if (last && last->below && last != floor)
1599	while (top != NULL) {
1600	if (QUERY_FLAG(top, FLAG_IS_FLOOR) ||
1601	QUERY_FLAG(top, FLAG_OVERLAY_FLOOR)) floor = top;
1602	if (QUERY_FLAG(top, FLAG_NO_PICK)
1603	&& (top->move_type & (MOVE_FLY_LOW |MOVE_FLY_HIGH))
1604	&& !QUERY_FLAG(top, FLAG_IS_FLOOR))
1605	{
1606	/* We insert above top, so we want this object below this */
1607	top=top->below;
1608	break;
1609	}
1610	last = top;
1611	top = top->above;	1305	top = last->below;
1612	}	1306	}
1613	/* Don't want top to be NULL, so set it to the last valid object */
1614	top = last;
1615
1616	/* We let update_position deal with figuring out what the space
1617	* looks like instead of lots of conditions here.
1618	* makes things faster, and effectively the same result.
1619	*/
1620
1621	/* Have object 'fall below' other objects that block view.
1622	* Unless those objects are exits, type 66
1623	* If INS_ON_TOP is used, don't do this processing
1624	* Need to find the object that in fact blocks view, otherwise
1625	* stacking is a bit odd.
1626	*/
1627	if (!(flag & INS_ON_TOP) &&
1628	(get_map_flags(op->map, NULL, op->x, op->y, NULL, NULL) & P_BLOCKSVIEW) &&
1629	(op->face && !op->face->visibility)) {
1630	for (last=top; last != floor; last=last->below)
1631	if (QUERY_FLAG(last, FLAG_BLOCKSVIEW)&&(last->type != EXIT)) break;
1632	/* Check to see if we found the object that blocks view,
1633	* and make sure we have a below pointer for it so that
1634	* we can get inserted below this one, which requires we
1635	* set top to the object below us.
1636	*/
1637	if (last && last->below && last != floor) top=last->below;
1638	}
1639	} /* If objects on this space */	1307	} /* If objects on this space */
		1308
1640	if (flag & INS_MAP_LOAD)	1309	if (flag & INS_MAP_LOAD)
1641	top = GET_MAP_TOP(op->map,op->x,op->y);	1310	top = GET_MAP_TOP (op->map, op->x, op->y);
		1311
1642	if (flag & INS_ABOVE_FLOOR_ONLY) top = floor;	1312	if (flag & INS_ABOVE_FLOOR_ONLY)
		1313	top = floor;
1643		1314
1644	/* 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.
1645	*/	1316	*/
1646		1317
1647	/* First object on this space */	1318	/* First object on this space */
1648	if (!top) {	1319	if (!top)
		1320	{
1649	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)
1650	if (op->above) op->above->below = op;	1324	op->above->below = op;
		1325
1651	op->below = NULL;	1326	op->below = 0;
1652	SET_MAP_OB(op->map, op->x, op->y, op);	1327	op->ms ().bot = op;
		1328	}
		1329	else
1653	} else { /* get inserted into the stack above top */	1330	{ /* get inserted into the stack above top */
1654	op->above = top->above;	1331	op->above = top->above;
		1332
		1333	if (op->above)
1655	if (op->above) op->above->below = op;	1334	op->above->below = op;
		1335
1656	op->below = top;	1336	op->below = top;
1657	top->above = op;	1337	top->above = op;
1658	}	1338	}
		1339
1659	if (op->above==NULL)	1340	if (!op->above)
1660	SET_MAP_TOP(op->map,op->x, op->y, op);	1341	op->ms ().top = op;
1661	} /* else not INS_BELOW_ORIGINATOR */	1342	} /* else not INS_BELOW_ORIGINATOR */
1662		1343
1663	if(op->type==PLAYER)	1344	if (op->type == PLAYER)
		1345	{
1664	op->contr->do_los=1;	1346	op->contr->do_los = 1;
		1347	++op->map->players;
		1348	op->map->touch ();
		1349	}
1665		1350
		1351	op->map->dirty = true;
		1352
1666	/* 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
1667	* it, so save a few ticks and start from there.	1354	* it, so save a few ticks and start from there.
1668	*/	1355	*/
1669	if (!(flag & INS_MAP_LOAD))	1356	if (!(flag & INS_MAP_LOAD))
1670	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 ())
1671	if (tmp->type == PLAYER)	1358	if (pl->contr->ns)
1672	tmp->contr->socket.update_look=1;	1359	pl->contr->ns->floorbox_update ();
1673	}
1674		1360
1675	/* If this object glows, it may affect lighting conditions that are	1361	/* If this object glows, it may affect lighting conditions that are
1676	* 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
1677	* 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
1678	* on the map will get recalculated. The players could very well	1364	* on the map will get recalculated. The players could very well
1679	* 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 -
1680	* this should get redone to only look for players within range,	1366	* this should get redone to only look for players within range,
1681	* or just updating the P_NEED_UPDATE for spaces within this area	1367	* or just updating the P_UPTODATE for spaces within this area
1682	* of effect may be sufficient.	1368	* of effect may be sufficient.
1683	*/	1369	*/
1684	if(MAP_DARKNESS(op->map) && (op->glow_radius != 0))	1370	if (op->map->darkness && (op->glow_radius != 0))
1685	update_all_los(op->map, op->x, op->y);	1371	update_all_los (op->map, op->x, op->y);
1686		1372
1687
1688	/* updates flags (blocked, alive, no magic, etc) for this map space */	1373	/* updates flags (blocked, alive, no magic, etc) for this map space */
1689	update_object(op,UP_OBJ_INSERT);	1374	update_object (op, UP_OBJ_INSERT);
1690		1375
		1376	INVOKE_OBJECT (INSERT, op);
1691		1377
1692	/* 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,
1693	* we want to have update_look set above before calling this.	1379	* we want to have floorbox_update called before calling this.
1694	*	1380	*
1695	* check_move_on() must be after this because code called from	1381	* check_move_on() must be after this because code called from
1696	* check_move_on() depends on correct map flags (so functions like	1382	* check_move_on() depends on correct map flags (so functions like
1697	* blocked() and wall() work properly), and these flags are updated by	1383	* blocked() and wall() work properly), and these flags are updated by
1698	* update_object().	1384	* update_object().
1699	*/	1385	*/
1700		1386
1701	/* 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 */
1702
1703	if (!(flag & INS_NO_WALK_ON) && !op->head) {	1388	if (!(flag & INS_NO_WALK_ON) && !op->head)
		1389	{
1704	if (check_move_on(op, originator))	1390	if (check_move_on (op, originator))
1705	return NULL;	1391	return 0;
1706		1392
1707	/* 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
1708	* walk on's.	1394	* walk on's.
1709	*/	1395	*/
1710	for (tmp=op->more; tmp!=NULL; tmp=tmp->more)	1396	for (tmp = op->more; tmp != NULL; tmp = tmp->more)
1711	if (check_move_on (tmp, originator))	1397	if (check_move_on (tmp, originator))
1712	return NULL;	1398	return 0;
1713	}	1399	}
		1400
1714	return op;	1401	return op;
1715	}	1402	}
1716		1403
1717	/* this function inserts an object in the map, but if it	1404	/* this function inserts an object in the map, but if it
1718	* finds an object of its own type, it'll remove that one first.	1405	* finds an object of its own type, it'll remove that one first.
1719	* op is the object to insert it under: supplies x and the map.	1406	* op is the object to insert it under: supplies x and the map.
1720	*/	1407	*/
		1408	void
1721	void replace_insert_ob_in_map(const char *arch_string, object *op) {	1409	replace_insert_ob_in_map (const char *arch_string, object *op)
1722	object *tmp;	1410	{
1723	object *tmp1;	1411	object *tmp, *tmp1;
1724		1412
1725	/* first search for itself and remove any old instances */	1413	/* first search for itself and remove any old instances */
1726		1414
1727	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)
1728	if(!strcmp(tmp->arch->name,arch_string)) /* same archetype */ {	1416	if (!strcmp (tmp->arch->name, arch_string)) /* same archetype */
1729	remove_ob(tmp);	1417	tmp->destroy ();
1730	free_object(tmp);
1731	}
1732	}
1733		1418
1734	tmp1=arch_to_object(find_archetype(arch_string));	1419	tmp1 = arch_to_object (archetype::find (arch_string));
1735		1420
1736		1421	tmp1->x = op->x;
1737	tmp1->x = op->x; tmp1->y = op->y;	1422	tmp1->y = op->y;
1738	insert_ob_in_map(tmp1,op->map,op,0);	1423	insert_ob_in_map (tmp1, op->map, op, 0);
1739	}	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	}
1740		1431
1741	/*	1432	/*
1742	* 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
1743	* is returned contains nr objects, and the remaining parts contains	1434	* is returned contains nr objects, and the remaining parts contains
1744	* 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).
1745	* On failure, NULL is returned, and the reason put into the	1436	* On failure, NULL is returned, and the reason put into the
1746	* global static errmsg array.	1437	* global static errmsg array.
1747	*/	1438	*/
1748		1439	object *
1749	object *get_split_ob(object *orig_ob, uint32 nr) {	1440	get_split_ob (object *orig_ob, uint32 nr)
		1441	{
1750	object *newob;	1442	object *newob;
1751	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);	1443	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);
1752		1444
1753	if(orig_ob->nrof<nr) {	1445	if (orig_ob->nrof < nr)
1754	sprintf(errmsg,"There are only %d %ss.",	1446	{
1755	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);
1756	return NULL;	1448	return NULL;
1757	}	1449	}
		1450
1758	newob = object_create_clone(orig_ob);	1451	newob = object_create_clone (orig_ob);
		1452
1759	if((orig_ob->nrof-=nr)<1) {	1453	if ((orig_ob->nrof -= nr) < 1)
1760	if ( ! is_removed)	1454	orig_ob->destroy (1);
1761	remove_ob(orig_ob);
1762	free_object2(orig_ob, 1);
1763	}
1764	else if ( ! is_removed) {	1455	else if (!is_removed)
		1456	{
1765	if(orig_ob->env!=NULL)	1457	if (orig_ob->env != NULL)
1766	sub_weight (orig_ob->env,orig_ob->weight*nr);	1458	sub_weight (orig_ob->env, orig_ob->weight * nr);
1767	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	{
1768	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.");
1769	LOG(llevDebug,
1770	"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");
1771	return NULL;	1463	return NULL;
1772	}	1464	}
1773	}	1465	}
		1466
1774	newob->nrof=nr;	1467	newob->nrof = nr;
1775		1468
1776	return newob;	1469	return newob;
1777	}	1470	}
1778		1471
1779	/*	1472	/*
1780	* decrease_ob_nr(object, number) decreases a specified number from	1473	* decrease_ob_nr(object, number) decreases a specified number from
1781	* 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
1782	* is subsequently removed and freed.	1475	* is subsequently removed and freed.
1783	*	1476	*
1784	* 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
1785	*/	1478	*/
1786		1479
		1480	object *
1787	object *decrease_ob_nr (object *op, uint32 i)	1481	decrease_ob_nr (object *op, uint32 i)
1788	{	1482	{
1789	object *tmp;	1483	object *tmp;
1790	player *pl;
1791		1484
1792	if (i == 0) /* objects with op->nrof require this check */	1485	if (i == 0) /* objects with op->nrof require this check */
1793	return op;	1486	return op;
1794		1487
1795	if (i > op->nrof)	1488	if (i > op->nrof)
1796	i = op->nrof;	1489	i = op->nrof;
1797		1490
1798	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	}
1799	{	1527	}
		1528	else
		1529	{
		1530	object *above = op->above;
		1531
		1532	if (i < op->nrof)
1800	op->nrof -= i;	1533	op->nrof -= i;
1801	}	1534	else
1802	else if (op->env != NULL)
1803	{
1804	/* is this object in the players inventory, or sub container
1805	* therein?
1806	*/
1807	tmp = is_player_inv (op->env);
1808	/* nope. Is this a container the player has opened?
1809	* If so, set tmp to that player.
1810	* IMO, searching through all the players will mostly
1811	* likely be quicker than following op->env to the map,
1812	* and then searching the map for a player.
1813	*/
1814	if (!tmp) {
1815	for (pl=first_player; pl; pl=pl->next)
1816	if (pl->ob->container == op->env) break;
1817	if (pl) tmp=pl->ob;
1818	else tmp=NULL;
1819	}	1535	{
1820
1821	if (i < op->nrof) {
1822	sub_weight (op->env, op->weight * i);
1823	op->nrof -= i;
1824	if (tmp) {
1825	esrv_send_item(tmp, op);
1826	}
1827	} else {
1828	remove_ob (op);	1536	op->remove ();
1829	op->nrof = 0;	1537	op->nrof = 0;
1830	if (tmp) {
1831	esrv_del_item(tmp->contr, op->count);
1832	}	1538	}
1833	}
1834	}
1835	else
1836	{
1837	object *above = op->above;
1838		1539
1839	if (i < op->nrof) {
1840	op->nrof -= i;
1841	} else {
1842	remove_ob (op);
1843	op->nrof = 0;
1844	}
1845	/* Since we just removed op, op->above is null */	1540	/* Since we just removed op, op->above is null */
1846	for (tmp = above; tmp != NULL; tmp = tmp->above)	1541	for (tmp = above; tmp; tmp = tmp->above)
1847	if (tmp->type == PLAYER) {	1542	if (tmp->type == PLAYER)
		1543	{
1848	if (op->nrof)	1544	if (op->nrof)
1849	esrv_send_item(tmp, op);	1545	esrv_send_item (tmp, op);
1850	else	1546	else
1851	esrv_del_item(tmp->contr, op->count);	1547	esrv_del_item (tmp->contr, op->count);
1852	}	1548	}
1853	}	1549	}
1854		1550
1855	if (op->nrof) {	1551	if (op->nrof)
1856	return op;	1552	return op;
1857	} else {	1553	else
1858	free_object (op);	1554	{
		1555	op->destroy ();
1859	return NULL;	1556	return 0;
1860	}	1557	}
1861	}	1558	}
1862		1559
1863	/*	1560	/*
1864	* add_weight(object, weight) adds the specified weight to an object,	1561	* add_weight(object, weight) adds the specified weight to an object,
1865	* and also updates how much the environment(s) is/are carrying.	1562	* and also updates how much the environment(s) is/are carrying.
1866	*/	1563	*/
1867		1564
		1565	void
1868	void add_weight (object *op, signed long weight) {	1566	add_weight (object *op, signed long weight)
		1567	{
1869	while (op!=NULL) {	1568	while (op != NULL)
		1569	{
1870	if (op->type == CONTAINER) {	1570	if (op->type == CONTAINER)
1871	weight=(signed long)(weight*(100-op->stats.Str)/100);	1571	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1872	}	1572
1873	op->carrying+=weight;	1573	op->carrying += weight;
1874	op=op->env;	1574	op = op->env;
1875	}	1575	}
1876	}	1576	}
1877		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
1878	/*	1598	/*
1879	* insert_ob_in_ob(op,environment):	1599	* env->insert (op)
1880	* This function inserts the object op in the linked list	1600	* This function inserts the object op in the linked list
1881	* inside the object environment.	1601	* inside the object environment.
1882	*	1602	*
1883	* Eneq(@csd.uu.se): Altered insert_ob_in_ob to make things picked up enter
1884	* the inventory at the last position or next to other objects of the same
1885	* type.
1886	* Frank: Now sorted by type, archetype and magic!
1887	*
1888	* The function returns now pointer to inserted item, and return value can	1603	* The function returns now pointer to inserted item, and return value can
1889	* be != op, if items are merged. -Tero	1604	* be != op, if items are merged. -Tero
1890	*/	1605	*/
1891		1606
1892	object *insert_ob_in_ob(object *op,object *where) {	1607	object *
		1608	object::insert (object *op)
		1609	{
1893	object *tmp, *otmp;	1610	object *tmp, *otmp;
1894		1611
1895	if(!QUERY_FLAG(op,FLAG_REMOVED)) {	1612	if (!QUERY_FLAG (op, FLAG_REMOVED))
1896	dump_object(op);	1613	op->remove ();
1897	LOG(llevError,"Trying to insert (ob) inserted object.\n%s\n", errmsg);	1614
1898	return op;
1899	}
1900	if(where==NULL) {
1901	dump_object(op);
1902	LOG(llevError,"Trying to put object in NULL.\n%s\n", errmsg);
1903	return op;
1904	}
1905	if (where->head) {
1906	LOG(llevDebug,
1907	"Warning: Tried to insert object wrong part of multipart object.\n");
1908	where = where->head;
1909	}
1910	if (op->more) {	1615	if (op->more)
		1616	{
1911	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);
1912	op->name, op->count);
1913	return op;	1618	return op;
1914	}	1619	}
		1620
1915	CLEAR_FLAG(op, FLAG_OBJ_ORIGINAL);	1621	CLEAR_FLAG (op, FLAG_OBJ_ORIGINAL);
1916	CLEAR_FLAG(op, FLAG_REMOVED);	1622	CLEAR_FLAG (op, FLAG_REMOVED);
1917	if(op->nrof) {	1623	if (op->nrof)
		1624	{
1918	for(tmp=where->inv;tmp!=NULL;tmp=tmp->below)	1625	for (tmp = inv; tmp != NULL; tmp = tmp->below)
1919	if ( CAN_MERGE(tmp,op) ) {	1626	if (object::can_merge (tmp, op))
		1627	{
1920	/* return the original object and remove inserted object	1628	/* return the original object and remove inserted object
1921	(client needs the original object) */	1629	(client needs the original object) */
1922	tmp->nrof += op->nrof;	1630	tmp->nrof += op->nrof;
1923	/* Weight handling gets pretty funky. Since we are adding to	1631	/* Weight handling gets pretty funky. Since we are adding to
1924	* tmp->nrof, we need to increase the weight.	1632	* tmp->nrof, we need to increase the weight.
1925	*/	1633	*/
1926	add_weight (where, op->weight*op->nrof);	1634	add_weight (this, op->weight * op->nrof);
1927	SET_FLAG(op, FLAG_REMOVED);	1635	SET_FLAG (op, FLAG_REMOVED);
1928	free_object(op); /* free the inserted object */	1636	op->destroy (); /* free the inserted object */
1929	op = tmp;	1637	op = tmp;
1930	remove_ob (op); /* and fix old object's links */	1638	op->remove (); /* and fix old object's links */
1931	CLEAR_FLAG(op, FLAG_REMOVED);	1639	CLEAR_FLAG (op, FLAG_REMOVED);
1932	break;	1640	break;
1933	}	1641	}
1934		1642
1935	/* I assume combined objects have no inventory	1643	/* I assume combined objects have no inventory
1936	* We add the weight - this object could have just been removed	1644	* We add the weight - this object could have just been removed
1937	* (if it was possible to merge). calling remove_ob will subtract	1645	* (if it was possible to merge). calling remove_ob will subtract
1938	* the weight, so we need to add it in again, since we actually do	1646	* the weight, so we need to add it in again, since we actually do
1939	* the linking below	1647	* the linking below
1940	*/	1648	*/
1941	add_weight (where, op->weight*op->nrof);	1649	add_weight (this, op->weight * op->nrof);
		1650	}
1942	} else	1651	else
1943	add_weight (where, (op->weight+op->carrying));	1652	add_weight (this, (op->weight + op->carrying));
1944		1653
1945	otmp=is_player_inv(where);	1654	otmp = this->in_player ();
1946	if (otmp&&otmp->contr!=NULL) {	1655	if (otmp && otmp->contr)
1947	if (!QUERY_FLAG(otmp,FLAG_NO_FIX_PLAYER))	1656	if (!QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1948	fix_player(otmp);	1657	otmp->update_stats ();
1949	}
1950		1658
1951	op->map=NULL;	1659	op->map = 0;
1952	op->env=where;	1660	op->env = this;
1953	op->above=NULL;	1661	op->above = 0;
1954	op->below=NULL;	1662	op->below = 0;
1955	op->x=0,op->y=0;	1663	op->x = 0, op->y = 0;
1956	op->ox=0,op->oy=0;
1957		1664
1958	/* 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 */
1959	if((op->glow_radius!=0)&&where->map)	1666	if ((op->glow_radius != 0) && map)
1960	{	1667	{
1961	#ifdef DEBUG_LIGHTS	1668	#ifdef DEBUG_LIGHTS
1962	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);
1963	op->name);
1964	#endif /* DEBUG_LIGHTS */	1670	#endif /* DEBUG_LIGHTS */
1965	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);
1966	}	1673	}
1967		1674
1968	/* 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.
1969	* It sure simplifies this function...	1676	* It sure simplifies this function...
1970	*/	1677	*/
1971	if (where->inv==NULL)	1678	if (!inv)
1972	where->inv=op;	1679	inv = op;
1973	else {	1680	else
		1681	{
1974	op->below = where->inv;	1682	op->below = inv;
1975	op->below->above = op;	1683	op->below->above = op;
1976	where->inv = op;	1684	inv = op;
1977	}	1685	}
		1686
		1687	INVOKE_OBJECT (INSERT, this);
		1688
1978	return op;	1689	return op;
1979	}	1690	}
1980		1691
1981	/*	1692	/*
1982	* Checks if any objects has a move_type that matches objects	1693	* Checks if any objects has a move_type that matches objects
…		…
1996	*	1707	*
1997	* 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
1998	* 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
1999	* on top.	1710	* on top.
2000	*/	1711	*/
2001		1712	int
2002	int check_move_on (object *op, object *originator)	1713	check_move_on (object *op, object *originator)
2003	{	1714	{
2004	object *tmp;	1715	object *tmp;
2005	tag_t tag;
2006	mapstruct *m=op->map;	1716	maptile *m = op->map;
2007	int x=op->x, y=op->y;	1717	int x = op->x, y = op->y;
		1718
2008	MoveType move_on, move_slow, move_block;	1719	MoveType move_on, move_slow, move_block;
2009		1720
2010	if(QUERY_FLAG(op,FLAG_NO_APPLY))	1721	if (QUERY_FLAG (op, FLAG_NO_APPLY))
2011	return 0;	1722	return 0;
2012		1723
2013	tag = op->count;
2014
2015	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);
2016	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);
2017	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);
2018		1727
2019	/* 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,
2020	* 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
2021	* 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
2022	* as walking.	1731	* as walking.
2023	*/	1732	*/
2024	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))
2025	return 0;	1734	return 0;
2026		1735
2027	/* This is basically inverse logic of that below - basically,	1736	/* This is basically inverse logic of that below - basically,
2028	* 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,
2029	* 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
2030	* blocked. Logic on this seems confusing, but does seem correct.	1739	* blocked. Logic on this seems confusing, but does seem correct.
2031	*/	1740	*/
2032	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)
2033	(op->move_type & ~move_slow & ~move_block) != 0) return 0;	1742	return 0;
2034		1743
2035	/* The objects have to be checked from top to bottom.	1744	/* The objects have to be checked from top to bottom.
2036	* Hence, we first go to the top:	1745	* Hence, we first go to the top:
2037	*/	1746	*/
2038		1747
2039	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)
2040	tmp->above!=NULL; tmp=tmp->above) {	1749	{
2041	/* Trim the search when we find the first other spell effect	1750	/* Trim the search when we find the first other spell effect
2042	* 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,
2043	* we don't need to check all of them.	1752	* we don't need to check all of them.
2044	*/	1753	*/
2045	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)
2046	}	1759	{
2047	for(;tmp!=NULL; tmp=tmp->below) {	1760	if (tmp == op)
2048	if (tmp == op) continue; /* Can't apply yourself */	1761	continue; /* Can't apply yourself */
2049		1762
2050	/* 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.
2051	* Second check makes sure that the movement types not being slowed	1764	* Second check makes sure that the movement types not being slowed
2052	* (~slow_move) is not blocked on this space - just because the	1765	* (~slow_move) is not blocked on this space - just because the
2053	* space doesn't slow down swimming (for example), if you can't actually	1766	* space doesn't slow down swimming (for example), if you can't actually
2054	* swim on that space, can't use it to avoid the penalty.	1767	* swim on that space, can't use it to avoid the penalty.
2055	*/	1768	*/
2056	if (!QUERY_FLAG(op, FLAG_WIZPASS)) {	1769	if (!QUERY_FLAG (op, FLAG_WIZPASS))
		1770	{
2057	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||	1771	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||
2058	((op->move_type & tmp->move_slow) &&
2059	(op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0)) {	1772	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))
		1773	{
2060		1774
2061	float diff;	1775	float
2062
2063	diff = tmp->move_slow_penalty*FABS(op->speed);	1776	diff = tmp->move_slow_penalty * FABS (op->speed);
		1777
2064	if (op->type == PLAYER) {	1778	if (op->type == PLAYER)
2065	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)) ||
2066	(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)))
2067	diff /= 4.0;	1781	diff /= 4.0;
2068	}	1782
2069	}
2070	op->speed_left -= diff;	1783	op->speed_left -= diff;
2071	}	1784	}
2072	}	1785	}
2073		1786
2074	/* Basically same logic as above, except now for actual apply. */	1787	/* Basically same logic as above, except now for actual apply. */
2075	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||	1788	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||
2076	((op->move_type & tmp->move_on) &&
2077	(op->move_type & ~tmp->move_on & ~tmp->move_block)==0)) {	1789	((op->move_type & tmp->move_on) && (op->move_type & ~tmp->move_on & ~tmp->move_block) == 0))
2078		1790	{
2079	move_apply(tmp, op, originator);	1791	move_apply (tmp, op, originator);
		1792
2080	if (was_destroyed (op, tag))	1793	if (op->destroyed ())
2081	return 1;	1794	return 1;
2082		1795
2083	/* what the person/creature stepped onto has moved the object	1796	/* what the person/creature stepped onto has moved the object
2084	* someplace new. Don't process any further - if we did,	1797	* someplace new. Don't process any further - if we did,
2085	* have a feeling strange problems would result.	1798	* have a feeling strange problems would result.
2086	*/	1799	*/
2087	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;
2088	}	1802	}
2089	}	1803	}
		1804
2090	return 0;	1805	return 0;
2091	}	1806	}
2092		1807
2093	/*	1808	/*
2094	* present_arch(arch, map, x, y) searches for any objects with	1809	* present_arch(arch, map, x, y) searches for any objects with
2095	* a matching archetype at the given map and coordinates.	1810	* a matching archetype at the given map and coordinates.
2096	* The first matching object is returned, or NULL if none.	1811	* The first matching object is returned, or NULL if none.
2097	*/	1812	*/
2098		1813	object *
2099	object *present_arch(const archetype *at, mapstruct *m, int x, int y) {	1814	present_arch (const archetype *at, maptile *m, int x, int y)
2100	object *tmp;	1815	{
2101	if(m==NULL || out_of_map(m,x,y)) {	1816	if (!m || out_of_map (m, x, y))
		1817	{
2102	LOG(llevError,"Present_arch called outside map.\n");	1818	LOG (llevError, "Present_arch called outside map.\n");
2103	return NULL;	1819	return NULL;
2104	}	1820	}
2105	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)
2106	if(tmp->arch == at)	1823	if (tmp->arch == at)
2107	return tmp;	1824	return tmp;
		1825
2108	return NULL;	1826	return NULL;
2109	}	1827	}
2110		1828
2111	/*	1829	/*
2112	* present(type, map, x, y) searches for any objects with	1830	* present(type, map, x, y) searches for any objects with
2113	* a matching type variable at the given map and coordinates.	1831	* a matching type variable at the given map and coordinates.
2114	* The first matching object is returned, or NULL if none.	1832	* The first matching object is returned, or NULL if none.
2115	*/	1833	*/
2116		1834	object *
2117	object *present(unsigned char type,mapstruct *m, int x,int y) {	1835	present (unsigned char type, maptile *m, int x, int y)
2118	object *tmp;	1836	{
2119	if(out_of_map(m,x,y)) {	1837	if (out_of_map (m, x, y))
		1838	{
2120	LOG(llevError,"Present called outside map.\n");	1839	LOG (llevError, "Present called outside map.\n");
2121	return NULL;	1840	return NULL;
2122	}	1841	}
2123	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)
2124	if(tmp->type==type)	1844	if (tmp->type == type)
2125	return tmp;	1845	return tmp;
		1846
2126	return NULL;	1847	return NULL;
2127	}	1848	}
2128		1849
2129	/*	1850	/*
2130	* present_in_ob(type, object) searches for any objects with	1851	* present_in_ob(type, object) searches for any objects with
2131	* a matching type variable in the inventory of the given object.	1852	* a matching type variable in the inventory of the given object.
2132	* The first matching object is returned, or NULL if none.	1853	* The first matching object is returned, or NULL if none.
2133	*/	1854	*/
2134		1855	object *
2135	object *present_in_ob(unsigned char type, const object *op) {	1856	present_in_ob (unsigned char type, const object *op)
2136	object *tmp;	1857	{
2137	for(tmp=op->inv;tmp!=NULL;tmp=tmp->below)	1858	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
2138	if(tmp->type==type)	1859	if (tmp->type == type)
2139	return tmp;	1860	return tmp;
		1861
2140	return NULL;	1862	return NULL;
2141	}	1863	}
2142		1864
2143	/*	1865	/*
2144	* present_in_ob (type, str, object) searches for any objects with	1866	* present_in_ob (type, str, object) searches for any objects with
…		…
2152	* 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
2153	* 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
2154	* 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
2155	* to be unique.	1877	* to be unique.
2156	*/	1878	*/
2157		1879	object *
2158	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)
2159	object *tmp;	1881	{
2160
2161	for(tmp=op->inv; tmp!=NULL; tmp=tmp->below) {	1882	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2162	if ((type==-1 || tmp->type==type) && (!strcmp(str, tmp->name)))	1883	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))
2163	return tmp;	1884	return tmp;
2164	}	1885
2165	return NULL;	1886	return 0;
2166	}	1887	}
2167		1888
2168	/*	1889	/*
2169	* present_arch_in_ob(archetype, object) searches for any objects with	1890	* present_arch_in_ob(archetype, object) searches for any objects with
2170	* a matching archetype in the inventory of the given object.	1891	* a matching archetype in the inventory of the given object.
2171	* The first matching object is returned, or NULL if none.	1892	* The first matching object is returned, or NULL if none.
2172	*/	1893	*/
2173		1894	object *
2174	object *present_arch_in_ob(const archetype *at, const object *op) {	1895	present_arch_in_ob (const archetype *at, const object *op)
2175	object *tmp;	1896	{
2176	for(tmp=op->inv;tmp!=NULL;tmp=tmp->below)	1897	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
2177	if( tmp->arch == at)	1898	if (tmp->arch == at)
2178	return tmp;	1899	return tmp;
		1900
2179	return NULL;	1901	return NULL;
2180	}	1902	}
2181		1903
2182	/*	1904	/*
2183	* activate recursively a flag on an object inventory	1905	* activate recursively a flag on an object inventory
2184	*/	1906	*/
		1907	void
2185	void flag_inv(object*op, int flag){	1908	flag_inv (object *op, int flag)
2186	object *tmp;	1909	{
2187	if(op->inv)	1910	if (op->inv)
2188	for(tmp = op->inv; tmp != NULL; tmp = tmp->below){	1911	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
		1912	{
2189	SET_FLAG(tmp, flag);	1913	SET_FLAG (tmp, flag);
2190	flag_inv(tmp,flag);	1914	flag_inv (tmp, flag);
2191	}	1915	}
		1916	}
		1917
2192	}/*	1918	/*
2193	* desactivate recursively a flag on an object inventory	1919	* deactivate recursively a flag on an object inventory
2194	*/	1920	*/
		1921	void
2195	void unflag_inv(object*op, int flag){	1922	unflag_inv (object *op, int flag)
2196	object *tmp;	1923	{
2197	if(op->inv)	1924	if (op->inv)
2198	for(tmp = op->inv; tmp != NULL; tmp = tmp->below){	1925	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
		1926	{
2199	CLEAR_FLAG(tmp, flag);	1927	CLEAR_FLAG (tmp, flag);
2200	unflag_inv(tmp,flag);	1928	unflag_inv (tmp, flag);
2201	}	1929	}
2202	}	1930	}
2203		1931
2204	/*	1932	/*
2205	* 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
2206	* all it's inventory (recursively).	1934	* all it's inventory (recursively).
2207	* 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
2208	* 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.
2209	*/	1937	*/
2210		1938	void
2211	void set_cheat(object *op) {	1939	set_cheat (object *op)
		1940	{
2212	SET_FLAG(op, FLAG_WAS_WIZ);	1941	SET_FLAG (op, FLAG_WAS_WIZ);
2213	flag_inv(op, FLAG_WAS_WIZ);	1942	flag_inv (op, FLAG_WAS_WIZ);
2214	}	1943	}
2215		1944
2216	/*	1945	/*
2217	* 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
2218	* 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
…		…
2232	* 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
2233	* 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
2234	* 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
2235	* customized, changed states, etc.	1964	* customized, changed states, etc.
2236	*/	1965	*/
2237		1966	int
2238	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	{
2239	int i,index=0, flag;	1969	int index = 0, flag;
2240	static int altern[SIZEOFFREE];	1970	int altern[SIZEOFFREE];
2241		1971
2242	for(i=start;i<stop;i++) {	1972	for (int i = start; i < stop; i++)
		1973	{
2243	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]);
2244	if(!flag)	1975	if (!flag)
2245	altern[index++]=i;	1976	altern [index++] = i;
2246		1977
2247	/* 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.
2248	* 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.
2249	* 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 -
2250	* 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
2251	* 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
2252	* to only the spaces immediately surrounding the target area, and	1983	* to only the spaces immediately surrounding the target area, and
2253	* won't look 2 spaces south of the target space.	1984	* won't look 2 spaces south of the target space.
2254	*/	1985	*/
2255	else if ((flag & AB_NO_PASS) && maxfree[i]<stop)	1986	else if ((flag & P_NO_PASS) && maxfree[i] < stop)
2256	stop=maxfree[i];	1987	stop = maxfree[i];
2257	}	1988	}
2258	if(!index) return -1;	1989
		1990	if (!index)
		1991	return -1;
		1992
2259	return altern[RANDOM()%index];	1993	return altern[RANDOM () % index];
2260	}	1994	}
2261		1995
2262	/*	1996	/*
2263	* find_first_free_spot(archetype, mapstruct, x, y) works like	1997	* find_first_free_spot(archetype, maptile, x, y) works like
2264	* find_free_spot(), but it will search max number of squares.	1998	* find_free_spot(), but it will search max number of squares.
2265	* 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.
2266	* 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.
2267	*/	2001	*/
2268		2002	int
2269	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)
2270	int i;	2004	{
2271	for(i=0;i<SIZEOFFREE;i++) {	2005	for (int i = 0; i < SIZEOFFREE; i++)
2272	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]))
2273	return i;	2007	return i;
2274	}	2008
2275	return -1;	2009	return -1;
2276	}	2010	}
2277		2011
2278	/*	2012	/*
2279	* The function permute(arr, begin, end) randomly reorders the array	2013	* The function permute(arr, begin, end) randomly reorders the array
2280	* arr[begin..end-1].	2014	* arr[begin..end-1].
		2015	* now uses a fisher-yates shuffle, old permute was broken
2281	*/	2016	*/
		2017	static void
2282	static void permute(int *arr, int begin, int end)	2018	permute (int *arr, int begin, int end)
2283	{	2019	{
2284	int i, j, tmp, len;	2020	arr += begin;
		2021	end -= begin;
2285		2022
2286	len = end-begin;	2023	while (--end)
2287	for(i = begin; i < end; i++)	2024	swap (arr [end], arr [RANDOM () % (end + 1)]);
2288	{
2289	j = begin+RANDOM()%len;
2290
2291	tmp = arr[i];
2292	arr[i] = arr[j];
2293	arr[j] = tmp;
2294	}
2295	}	2025	}
2296		2026
2297	/* new function to make monster searching more efficient, and effective!	2027	/* new function to make monster searching more efficient, and effective!
2298	* This basically returns a randomized array (in the passed pointer) of	2028	* This basically returns a randomized array (in the passed pointer) of
2299	* the spaces to find monsters. In this way, it won't always look for	2029	* the spaces to find monsters. In this way, it won't always look for
2300	* monsters to the north first. However, the size of the array passed	2030	* monsters to the north first. However, the size of the array passed
2301	* covers all the spaces, so within that size, all the spaces within	2031	* covers all the spaces, so within that size, all the spaces within
2302	* the 3x3 area will be searched, just not in a predictable order.	2032	* the 3x3 area will be searched, just not in a predictable order.
2303	*/	2033	*/
		2034	void
2304	void get_search_arr(int *search_arr)	2035	get_search_arr (int *search_arr)
2305	{	2036	{
2306	int i;	2037	int i;
2307		2038
2308	for(i = 0; i < SIZEOFFREE; i++)	2039	for (i = 0; i < SIZEOFFREE; i++)
2309	{
2310	search_arr[i] = i;	2040	search_arr[i] = i;
2311	}
2312		2041
2313	permute(search_arr, 1, SIZEOFFREE1+1);	2042	permute (search_arr, 1, SIZEOFFREE1 + 1);
2314	permute(search_arr, SIZEOFFREE1+1, SIZEOFFREE2+1);	2043	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);
2315	permute(search_arr, SIZEOFFREE2+1, SIZEOFFREE);	2044	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);
2316	}	2045	}
2317		2046
2318	/*	2047	/*
2319	* 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
2320	* given map at the given coordinates for live objects.	2049	* given map at the given coordinates for live objects.
…		…
2325	* Perhaps incorrectly, but I'm making the assumption that exclude	2054	* Perhaps incorrectly, but I'm making the assumption that exclude
2326	* is actually want is going to try and move there. We need this info	2055	* is actually want is going to try and move there. We need this info
2327	* because we have to know what movement the thing looking to move	2056	* because we have to know what movement the thing looking to move
2328	* there is capable of.	2057	* there is capable of.
2329	*/	2058	*/
2330		2059	int
2331	int find_dir(mapstruct *m, int x, int y, object *exclude) {	2060	find_dir (maptile *m, int x, int y, object *exclude)
		2061	{
2332	int i,max=SIZEOFFREE, mflags;	2062	int i, max = SIZEOFFREE, mflags;
		2063
2333	sint16 nx, ny;	2064	sint16 nx, ny;
2334	object *tmp;	2065	object *tmp;
2335	mapstruct *mp;	2066	maptile *mp;
		2067
2336	MoveType blocked, move_type;	2068	MoveType blocked, move_type;
2337		2069
2338	if (exclude && exclude->head) {	2070	if (exclude && exclude->head)
		2071	{
2339	exclude = exclude->head;	2072	exclude = exclude->head;
2340	move_type = exclude->move_type;	2073	move_type = exclude->move_type;
2341	} else {	2074	}
		2075	else
		2076	{
2342	/* 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. */
2343	move_type=MOVE_ALL;	2078	move_type = MOVE_ALL;
		2079	}
		2080
		2081	for (i = 1; i < max; i++)
2344	}	2082	{
2345
2346	for(i=1;i<max;i++) {
2347	mp = m;	2083	mp = m;
2348	nx = x + freearr_x[i];	2084	nx = x + freearr_x[i];
2349	ny = y + freearr_y[i];	2085	ny = y + freearr_y[i];
2350		2086
2351	mflags = get_map_flags(m, &mp, nx, ny, &nx, &ny);	2087	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);
		2088
2352	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)
2353	max = maxfree[i];	2098	max = maxfree[i];
2354	} else {
2355	blocked = GET_MAP_MOVE_BLOCK(mp, nx, ny);
2356
2357	if ((move_type & blocked) == move_type) {
2358	max=maxfree[i];
2359	} else if (mflags & P_IS_ALIVE) {	2099	else if (mflags & P_IS_ALIVE)
2360	for (tmp=GET_MAP_OB(mp,nx,ny); tmp!= NULL; tmp=tmp->above) {	2100	{
		2101	for (tmp = ms.bot; tmp; tmp = tmp->above)
2361	if ((QUERY_FLAG(tmp,FLAG_MONSTER) || tmp->type==PLAYER) &&	2102	if ((tmp->flag [FLAG_MONSTER] || tmp->type == PLAYER)
2362	(tmp != exclude ||(tmp->head && tmp->head != exclude))) {	2103	&& (tmp != exclude || (tmp->head && tmp->head != exclude)))
2363	break;	2104	break;
2364	}	2105
2365	}
2366	if(tmp) {	2106	if (tmp)
2367	return freedir[i];	2107	return freedir[i];
2368	}
2369	}	2108	}
2370	}	2109	}
2371	}	2110	}
		2111
2372	return 0;	2112	return 0;
2373	}	2113	}
2374		2114
2375	/*	2115	/*
2376	* distance(object 1, object 2) will return the square of the	2116	* distance(object 1, object 2) will return the square of the
2377	* distance between the two given objects.	2117	* distance between the two given objects.
2378	*/	2118	*/
2379		2119	int
2380	int distance(const object *ob1, const object *ob2) {	2120	distance (const object *ob1, const object *ob2)
2381	int i;	2121	{
2382	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);
2383	(ob1->y - ob2->y)*(ob1->y - ob2->y);
2384	return i;
2385	}	2123	}
2386		2124
2387	/*	2125	/*
2388	* 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
2389	* 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
2390	* object, needs to travel toward it.	2128	* object, needs to travel toward it.
2391	*/	2129	*/
2392		2130	int
2393	int find_dir_2(int x, int y) {	2131	find_dir_2 (int x, int y)
		2132	{
2394	int q;	2133	int q;
2395		2134
2396	if(y)	2135	if (y)
2397	q=x*100/y;	2136	q = x * 100 / y;
2398	else if (x)	2137	else if (x)
2399	q= -300*x;	2138	q = -300 * x;
2400	else	2139	else
2401	return 0;	2140	return 0;
2402		2141
2403	if(y>0) {	2142	if (y > 0)
		2143	{
2404	if(q < -242)	2144	if (q < -242)
2405	return 3 ;	2145	return 3;
2406	if (q < -41)	2146	if (q < -41)
2407	return 2 ;	2147	return 2;
2408	if (q < 41)	2148	if (q < 41)
2409	return 1 ;	2149	return 1;
2410	if (q < 242)	2150	if (q < 242)
2411	return 8 ;	2151	return 8;
2412	return 7 ;	2152	return 7;
2413	}	2153	}
2414		2154
2415	if (q < -242)	2155	if (q < -242)
2416	return 7 ;	2156	return 7;
2417	if (q < -41)	2157	if (q < -41)
2418	return 6 ;	2158	return 6;
2419	if (q < 41)	2159	if (q < 41)
2420	return 5 ;	2160	return 5;
2421	if (q < 242)	2161	if (q < 242)
2422	return 4 ;	2162	return 4;
2423		2163
2424	return 3 ;	2164	return 3;
2425	}	2165	}
2426		2166
2427	/*	2167	/*
2428	* absdir(int): Returns a number between 1 and 8, which represent	2168	* absdir(int): Returns a number between 1 and 8, which represent
2429	* the "absolute" direction of a number (it actually takes care of	2169	* the "absolute" direction of a number (it actually takes care of
2430	* "overflow" in previous calculations of a direction).	2170	* "overflow" in previous calculations of a direction).
2431	*/	2171	*/
2432		2172
		2173	int
2433	int absdir(int d) {	2174	absdir (int d)
2434	while(d<1) d+=8;	2175	{
2435	while(d>8) d-=8;	2176	while (d < 1)
		2177	d += 8;
		2178
		2179	while (d > 8)
		2180	d -= 8;
		2181
2436	return d;	2182	return d;
2437	}	2183	}
2438		2184
2439	/*	2185	/*
2440	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is	2186	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is
2441	* between two directions (which are expected to be absolute (see absdir())	2187	* between two directions (which are expected to be absolute (see absdir())
2442	*/	2188	*/
2443		2189
		2190	int
2444	int dirdiff(int dir1, int dir2) {	2191	dirdiff (int dir1, int dir2)
		2192	{
2445	int d;	2193	int d;
		2194
2446	d = abs(dir1 - dir2);	2195	d = abs (dir1 - dir2);
2447	if(d>4)	2196	if (d > 4)
2448	d = 8 - d;	2197	d = 8 - d;
		2198
2449	return d;	2199	return d;
2450	}	2200	}
2451		2201
2452	/* peterm:	2202	/* peterm:
2453	* 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.
…		…
2456	* 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
2457	* 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.
2458	* 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
2459	* functions.	2209	* functions.
2460	*/	2210	*/
2461
2462	int reduction_dir[SIZEOFFREE][3] = {	2211	int reduction_dir[SIZEOFFREE][3] = {
2463	{0,0,0}, /* 0 */	2212	{0, 0, 0}, /* 0 */
2464	{0,0,0}, /* 1 */	2213	{0, 0, 0}, /* 1 */
2465	{0,0,0}, /* 2 */	2214	{0, 0, 0}, /* 2 */
2466	{0,0,0}, /* 3 */	2215	{0, 0, 0}, /* 3 */
2467	{0,0,0}, /* 4 */	2216	{0, 0, 0}, /* 4 */
2468	{0,0,0}, /* 5 */	2217	{0, 0, 0}, /* 5 */
2469	{0,0,0}, /* 6 */	2218	{0, 0, 0}, /* 6 */
2470	{0,0,0}, /* 7 */	2219	{0, 0, 0}, /* 7 */
2471	{0,0,0}, /* 8 */	2220	{0, 0, 0}, /* 8 */
2472	{8,1,2}, /* 9 */	2221	{8, 1, 2}, /* 9 */
2473	{1,2,-1}, /* 10 */	2222	{1, 2, -1}, /* 10 */
2474	{2,10,12}, /* 11 */	2223	{2, 10, 12}, /* 11 */
2475	{2,3,-1}, /* 12 */	2224	{2, 3, -1}, /* 12 */
2476	{2,3,4}, /* 13 */	2225	{2, 3, 4}, /* 13 */
2477	{3,4,-1}, /* 14 */	2226	{3, 4, -1}, /* 14 */
2478	{4,14,16}, /* 15 */	2227	{4, 14, 16}, /* 15 */
2479	{5,4,-1}, /* 16 */	2228	{5, 4, -1}, /* 16 */
2480	{4,5,6}, /* 17 */	2229	{4, 5, 6}, /* 17 */
2481	{6,5,-1}, /* 18 */	2230	{6, 5, -1}, /* 18 */
2482	{6,20,18}, /* 19 */	2231	{6, 20, 18}, /* 19 */
2483	{7,6,-1}, /* 20 */	2232	{7, 6, -1}, /* 20 */
2484	{6,7,8}, /* 21 */	2233	{6, 7, 8}, /* 21 */
2485	{7,8,-1}, /* 22 */	2234	{7, 8, -1}, /* 22 */
2486	{8,22,24}, /* 23 */	2235	{8, 22, 24}, /* 23 */
2487	{8,1,-1}, /* 24 */	2236	{8, 1, -1}, /* 24 */
2488	{24,9,10}, /* 25 */	2237	{24, 9, 10}, /* 25 */
2489	{9,10,-1}, /* 26 */	2238	{9, 10, -1}, /* 26 */
2490	{10,11,-1}, /* 27 */	2239	{10, 11, -1}, /* 27 */
2491	{27,11,29}, /* 28 */	2240	{27, 11, 29}, /* 28 */
2492	{11,12,-1}, /* 29 */	2241	{11, 12, -1}, /* 29 */
2493	{12,13,-1}, /* 30 */	2242	{12, 13, -1}, /* 30 */
2494	{12,13,14}, /* 31 */	2243	{12, 13, 14}, /* 31 */
2495	{13,14,-1}, /* 32 */	2244	{13, 14, -1}, /* 32 */
2496	{14,15,-1}, /* 33 */	2245	{14, 15, -1}, /* 33 */
2497	{33,15,35}, /* 34 */	2246	{33, 15, 35}, /* 34 */
2498	{16,15,-1}, /* 35 */	2247	{16, 15, -1}, /* 35 */
2499	{17,16,-1}, /* 36 */	2248	{17, 16, -1}, /* 36 */
2500	{18,17,16}, /* 37 */	2249	{18, 17, 16}, /* 37 */
2501	{18,17,-1}, /* 38 */	2250	{18, 17, -1}, /* 38 */
2502	{18,19,-1}, /* 39 */	2251	{18, 19, -1}, /* 39 */
2503	{41,19,39}, /* 40 */	2252	{41, 19, 39}, /* 40 */
2504	{19,20,-1}, /* 41 */	2253	{19, 20, -1}, /* 41 */
2505	{20,21,-1}, /* 42 */	2254	{20, 21, -1}, /* 42 */
2506	{20,21,22}, /* 43 */	2255	{20, 21, 22}, /* 43 */
2507	{21,22,-1}, /* 44 */	2256	{21, 22, -1}, /* 44 */
2508	{23,22,-1}, /* 45 */	2257	{23, 22, -1}, /* 45 */
2509	{45,47,23}, /* 46 */	2258	{45, 47, 23}, /* 46 */
2510	{23,24,-1}, /* 47 */	2259	{23, 24, -1}, /* 47 */
2511	{24,9,-1}}; /* 48 */	2260	{24, 9, -1}
		2261	}; /* 48 */
2512		2262
2513	/* Recursive routine to step back and see if we can	2263	/* Recursive routine to step back and see if we can
2514	* find a path to that monster that we found. If not,	2264	* find a path to that monster that we found. If not,
2515	* we don't bother going toward it. Returns 1 if we	2265	* we don't bother going toward it. Returns 1 if we
2516	* can see a direct way to get it	2266	* can see a direct way to get it
2517	* Modified to be map tile aware -.MSW	2267	* Modified to be map tile aware -.MSW
2518	*/	2268	*/
2519		2269	int
2520
2521	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	{
2522	sint16 dx, dy;	2272	sint16 dx, dy;
2523	int mflags;	2273	int mflags;
2524		2274
		2275	if (dir < 0)
2525	if(dir<0) return 0; /* exit condition: invalid direction */	2276	return 0; /* exit condition: invalid direction */
2526		2277
2527	dx = x + freearr_x[dir];	2278	dx = x + freearr_x[dir];
2528	dy = y + freearr_y[dir];	2279	dy = y + freearr_y[dir];
2529		2280
2530	mflags = get_map_flags(m, &m, dx, dy, &dx, &dy);	2281	mflags = get_map_flags (m, &m, dx, dy, &dx, &dy);
2531		2282
2532	/* This functional arguably was incorrect before - it was	2283	/* This functional arguably was incorrect before - it was
2533	* checking for P_WALL - that was basically seeing if	2284	* checking for P_WALL - that was basically seeing if
2534	* we could move to the monster - this is being more	2285	* we could move to the monster - this is being more
2535	* 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
2536	* 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
2537	* at least its move type.	2288	* at least its move type.
2538	*/	2289	*/
2539	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW)) return 0;	2290	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW))
		2291	return 0;
2540		2292
2541	/* yes, can see. */	2293	/* yes, can see. */
2542	if(dir < 9) return 1;	2294	if (dir < 9)
		2295	return 1;
		2296
2543	return can_see_monsterP(m, x, y, reduction_dir[dir][0]) |	2297	return can_see_monsterP (m, x, y, reduction_dir[dir][0])
2544	can_see_monsterP(m,x,y, reduction_dir[dir][1]) |	2298	| can_see_monsterP (m, x, y, reduction_dir[dir][1])
2545	can_see_monsterP(m,x,y, reduction_dir[dir][2]);	2299	| can_see_monsterP (m, x, y, reduction_dir[dir][2]);
2546	}	2300	}
2547		2301
2548
2549
2550	/*	2302	/*
2551	* 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
2552	* picked up by the picker. Returnes 1 if it can be	2304	* picked up by the picker. Returnes 1 if it can be
2553	* picked up, otherwise 0.	2305	* picked up, otherwise 0.
2554	*	2306	*
…		…
2556	* core dumps if they do.	2308	* core dumps if they do.
2557	*	2309	*
2558	* 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)
2559	*/	2311	*/
2560		2312
		2313	int
2561	int can_pick(const object *who, const object *item) {	2314	can_pick (const object *who, const object *item)
		2315	{
2562	return /*QUERY_FLAG(who,FLAG_WIZ)||*/	2316	return /*QUERY_FLAG(who,FLAG_WIZ)|| */
2563	(item->weight>0&&!QUERY_FLAG(item,FLAG_NO_PICK)&&	2317	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&
2564	!QUERY_FLAG(item,FLAG_ALIVE)&&!item->invisible &&	2318	!QUERY_FLAG (item, FLAG_ALIVE) && !item->invisible && (who->type == PLAYER || item->weight < who->weight / 3));
2565	(who->type==PLAYER||item->weight<who->weight/3));
2566	}	2319	}
2567
2568		2320
2569	/*	2321	/*
2570	* create clone from object to another	2322	* create clone from object to another
2571	*/	2323	*/
		2324	object *
2572	object *object_create_clone (object *asrc) {	2325	object_create_clone (object *asrc)
		2326	{
2573	object *dst = NULL,*tmp,*src,*part,*prev, *item;	2327	object *dst = 0, *tmp, *src, *part, *prev, *item;
2574		2328
2575	if(!asrc) return NULL;	2329	if (!asrc)
		2330	return 0;
		2331
2576	src = asrc;	2332	src = asrc;
2577	if(src->head)	2333	if (src->head)
2578	src = src->head;	2334	src = src->head;
2579		2335
2580	prev = NULL;	2336	prev = 0;
2581	for(part = src; part; part = part->more) {	2337	for (part = src; part; part = part->more)
2582	tmp = get_object();	2338	{
2583	copy_object(part,tmp);	2339	tmp = part->clone ();
2584	tmp->x -= src->x;	2340	tmp->x -= src->x;
2585	tmp->y -= src->y;	2341	tmp->y -= src->y;
		2342
2586	if(!part->head) {	2343	if (!part->head)
		2344	{
2587	dst = tmp;	2345	dst = tmp;
2588	tmp->head = NULL;	2346	tmp->head = 0;
		2347	}
2589	} else {	2348	else
2590	tmp->head = dst;	2349	tmp->head = dst;
2591	}	2350
2592	tmp->more = NULL;	2351	tmp->more = 0;
		2352
2593	if(prev)	2353	if (prev)
2594	prev->more = tmp;	2354	prev->more = tmp;
		2355
2595	prev = tmp;	2356	prev = tmp;
2596	}	2357	}
2597	/*** copy inventory ***/	2358
2598	for(item = src->inv; item; item = item->below) {	2359	for (item = src->inv; item; item = item->below)
2599	(void) insert_ob_in_ob(object_create_clone(item),dst);	2360	insert_ob_in_ob (object_create_clone (item), dst);
2600	}
2601		2361
2602	return dst;	2362	return dst;
2603	}
2604
2605	/* return true if the object was destroyed, 0 otherwise */
2606	int was_destroyed (const object *op, tag_t old_tag)
2607	{
2608	/* checking for FLAG_FREED isn't necessary, but makes this function more
2609	* robust */
2610	return op->count != old_tag || QUERY_FLAG (op, FLAG_FREED);
2611	}	2363	}
2612		2364
2613	/* GROS - Creates an object using a string representing its content. */	2365	/* GROS - Creates an object using a string representing its content. */
2614	/* Basically, we save the content of the string to a temp file, then call */	2366	/* Basically, we save the content of the string to a temp file, then call */
2615	/* load_object on it. I admit it is a highly inefficient way to make things, */	2367	/* load_object on it. I admit it is a highly inefficient way to make things, */
2616	/* but it was simple to make and allows reusing the load_object function. */	2368	/* but it was simple to make and allows reusing the load_object function. */
2617	/* Remember not to use load_object_str in a time-critical situation. */	2369	/* Remember not to use load_object_str in a time-critical situation. */
2618	/* Also remember that multiparts objects are not supported for now. */	2370	/* Also remember that multiparts objects are not supported for now. */
2619		2371	object *
2620	object* load_object_str(const char *obstr)	2372	load_object_str (const char *obstr)
2621	{	2373	{
2622	object *op;	2374	object *op;
2623	FILE *tempfile;
2624	char filename[MAX_BUF];	2375	char filename[MAX_BUF];
		2376
2625	sprintf(filename,"%s/cfloadobstr2044",settings.tmpdir);	2377	sprintf (filename, "%s/cfloadobstr2044", settings.tmpdir);
		2378
2626	tempfile=fopen(filename,"w");	2379	FILE *tempfile = fopen (filename, "w");
		2380
2627	if (tempfile == NULL)	2381	if (tempfile == NULL)
2628	{	2382	{
2629	LOG(llevError,"Error - Unable to access load object temp file\n");	2383	LOG (llevError, "Error - Unable to access load object temp file\n");
2630	return NULL;	2384	return NULL;
2631	};	2385	}
		2386
2632	fprintf(tempfile,obstr);	2387	fprintf (tempfile, obstr);
2633	fclose(tempfile);	2388	fclose (tempfile);
2634		2389
2635	op=get_object();	2390	op = object::create ();
2636		2391
2637	tempfile=fopen(filename,"r");
2638	if (tempfile == NULL)
2639	{
2640	LOG(llevError,"Error - Unable to read object temp file\n");
2641	return NULL;
2642	};
2643	object_thawer thawer (tempfile);	2392	object_thawer thawer (filename);
		2393
		2394	if (thawer)
2644	load_object(thawer,op,LO_NEWFILE,0);	2395	load_object (thawer, op, 0);
		2396
2645	LOG(llevDebug," load str completed, object=%s\n",op->name);	2397	LOG (llevDebug, " load str completed, object=%s\n", &op->name);
2646	CLEAR_FLAG(op,FLAG_REMOVED);	2398	CLEAR_FLAG (op, FLAG_REMOVED);
2647	fclose(tempfile);	2399
2648	return op;	2400	return op;
2649	}	2401	}
2650		2402
2651	/* This returns the first object in who's inventory that	2403	/* This returns the first object in who's inventory that
2652	* has the same type and subtype match.	2404	* has the same type and subtype match.
2653	* returns NULL if no match.	2405	* returns NULL if no match.
2654	*/	2406	*/
		2407	object *
2655	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)
2656	{	2409	{
2657	object *tmp;
2658
2659	for (tmp=who->inv; tmp; tmp=tmp->below)	2410	for (object *tmp = who->inv; tmp; tmp = tmp->below)
2660	if (tmp->type == type && tmp->subtype == subtype) return tmp;	2411	if (tmp->type == type && tmp->subtype == subtype)
		2412	return tmp;
2661		2413
2662	return NULL;	2414	return 0;
2663	}	2415	}
2664		2416
2665	/* 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,
2666	* otherwise return NULL.	2418	* otherwise return NULL.
2667	*	2419	*
2668	* 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
2669	* do the desired thing.	2421	* do the desired thing.
2670	*/	2422	*/
		2423	key_value *
2671	key_value * get_ob_key_link(const object * ob, const char * key) {	2424	get_ob_key_link (const object *ob, const char *key)
2672	key_value * link;	2425	{
2673
2674	for (link = ob->key_values; link != NULL; link = link->next) {	2426	for (key_value *link = ob->key_values; link; link = link->next)
2675	if (link->key == key) {	2427	if (link->key == key)
2676	return link;	2428	return link;
2677	}	2429
2678	}	2430	return 0;
2679		2431	}
2680	return NULL;
2681	}
2682		2432
2683	/*	2433	/*
2684	* 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.
2685	*	2435	*
2686	* The argument doesn't need to be a shared string.	2436	* The argument doesn't need to be a shared string.
2687	*	2437	*
2688	* The returned string is shared.	2438	* The returned string is shared.
2689	*/	2439	*/
		2440	const char *
2690	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	{
2691	key_value * link;	2443	key_value *link;
2692	const char * canonical_key;	2444	shstr_cmp canonical_key (key);
		2445
		2446	if (!canonical_key)
2693		2447	{
2694	canonical_key = find_string(key);
2695
2696	if (canonical_key == NULL) {
2697	/* 1. There being a field named key on any object	2448	/* 1. There being a field named key on any object
2698	* implies there'd be a shared string to find.	2449	* implies there'd be a shared string to find.
2699	* 2. Since there isn't, no object has this field.	2450	* 2. Since there isn't, no object has this field.
2700	* 3. Therefore, *this* object doesn't have this field.	2451	* 3. Therefore, *this* object doesn't have this field.
2701	*/	2452	*/
2702	return NULL;	2453	return 0;
2703	}	2454	}
2704		2455
2705	/* This is copied from get_ob_key_link() above -	2456	/* This is copied from get_ob_key_link() above -
2706	* only 4 lines, and saves the function call overhead.	2457	* only 4 lines, and saves the function call overhead.
2707	*/	2458	*/
2708	for (link = op->key_values; link != NULL; link = link->next) {	2459	for (link = op->key_values; link; link = link->next)
2709	if (link->key == canonical_key) {	2460	if (link->key == canonical_key)
2710	return link->value;	2461	return link->value;
2711	}	2462
2712	}	2463	return 0;
2713	return NULL;
2714	}	2464	}
2715		2465
2716		2466
2717	/*	2467	/*
2718	* Updates the canonical_key in op to value.	2468	* Updates the canonical_key in op to value.
…		…
2722	* 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
2723	* keys.	2473	* keys.
2724	*	2474	*
2725	* Returns TRUE on success.	2475	* Returns TRUE on success.
2726	*/	2476	*/
		2477	int
2727	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	{
2728	key_value * field = NULL, *last=NULL;	2480	key_value *field = NULL, *last = NULL;
2729		2481
2730	for (field=op->key_values; field != NULL; field=field->next) {	2482	for (field = op->key_values; field != NULL; field = field->next)
		2483	{
2731	if (field->key != canonical_key) {	2484	if (field->key != canonical_key)
		2485	{
2732	last = field;	2486	last = field;
2733	continue;	2487	continue;
2734	}	2488	}
2735		2489
2736	if (field->value) FREE_AND_CLEAR_STR(field->value);
2737	if (value)	2490	if (value)
2738	field->value = add_string(value);	2491	field->value = value;
2739	else {	2492	else
		2493	{
2740	/* Basically, if the archetype has this key set,	2494	/* Basically, if the archetype has this key set,
2741	* we need to store the null value so when we save	2495	* we need to store the null value so when we save
2742	* it, we save the empty value so that when we load,	2496	* it, we save the empty value so that when we load,
2743	* we get this value back again.	2497	* we get this value back again.
2744	*/	2498	*/
2745	if (get_ob_key_link(&op->arch->clone, canonical_key))	2499	if (get_ob_key_link (&op->arch->clone, canonical_key))
2746	field->value = NULL;	2500	field->value = 0;
2747	else {	2501	else
2748	/* Delete this link */	2502	{
2749	if (field->key) FREE_AND_CLEAR_STR(field->key);	2503	if (last)
2750	if (field->value) FREE_AND_CLEAR_STR(field->value);
2751	if (last) last->next = field->next;	2504	last->next = field->next;
		2505	else
2752	else op->key_values = field->next;	2506	op->key_values = field->next;
		2507
2753	free(field);	2508	delete field;
2754	}	2509	}
2755	}	2510	}
2756	return TRUE;	2511	return TRUE;
2757	}	2512	}
2758	/* IF we get here, key doesn't exist */	2513	/* IF we get here, key doesn't exist */
2759		2514
2760	/* No field, we'll have to add it. */	2515	/* No field, we'll have to add it. */
2761		2516
2762	if (!add_key) {	2517	if (!add_key)
2763	return FALSE;	2518	return FALSE;
2764	}	2519
2765	/* There isn't any good reason to store a null	2520	/* There isn't any good reason to store a null
2766	* value in the key/value list. If the archetype has	2521	* value in the key/value list. If the archetype has
2767	* this key, then we should also have it, so shouldn't	2522	* this key, then we should also have it, so shouldn't
2768	* be here. If user wants to store empty strings,	2523	* be here. If user wants to store empty strings,
2769	* should pass in ""	2524	* should pass in ""
2770	*/	2525	*/
2771	if (value == NULL) return TRUE;	2526	if (value == NULL)
2772
2773	field = (key_value *) malloc(sizeof(key_value));
2774
2775	field->key = add_refcount(canonical_key);
2776	field->value = add_string(value);
2777	/* Usual prepend-addition. */
2778	field->next = op->key_values;
2779	op->key_values = field;
2780
2781	return TRUE;	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;
2782	}	2538	}
2783		2539
2784	/*	2540	/*
2785	* Updates the key in op to value.	2541	* Updates the key in op to value.
2786	*	2542	*
…		…
2788	* and not add new ones.	2544	* and not add new ones.
2789	* 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
2790	*	2546	*
2791	* Returns TRUE on success.	2547	* Returns TRUE on success.
2792	*/	2548	*/
		2549	int
2793	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)
2794	const char * canonical_key = NULL;	2551	{
2795	int floating_ref = FALSE;	2552	shstr key_ (key);
2796	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)
2797		2568	{
2798	/* HACK This mess is to make sure set_ob_value() passes a shared string	2569	item = item->below;
2799	* to get_ob_key_link(), without leaving a leaked refcount.	2570
2800	*/	2571	while (item->inv)
		2572	item = item->inv;
2801		2573	}
2802	canonical_key = find_string(key);	2574	else
2803	if (canonical_key == NULL) {	2575	item = item->env;
2804	canonical_key = add_string(key);	2576	}
2805	floating_ref = TRUE;	2577
2806	}	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++)
2807		2588	{
2808	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	}
2809		2602	}
2810	if (floating_ref) {	2603
2811	free_string(canonical_key);
2812	}
2813
2814	return ret;	2604	return desc;
2815	}	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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