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

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