ViewVC Help

View File | Revision Log | Show Annotations | Download File

/cvs/deliantra/server/common/object.C

Comparing deliantra/server/common/object.C (file contents):
Revision 1.2 by root, Fri Aug 25 17:11:52 2006 UTC vs.
Revision 1.110 by root, Sun Jan 7 23:12:03 2007 UTC

1	/*
2	* static char *rcsid_object_c =
3	* "$Id: object.C,v 1.2 2006/08/25 17:11:52 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	void (*object_free_callback)(object *ob);	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
59	short freearr_x[SIZEOFFREE]=
60	{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,
61	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
62	short freearr_y[SIZEOFFREE]=	47	};
63	{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,
64	-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
65	int maxfree[SIZEOFFREE]=	50	};
66	{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,
67	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	};
68	int freedir[SIZEOFFREE]= {	54	int freedir[SIZEOFFREE] = {
69	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,
70	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	};
71		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	}
72		135
73	/* 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
74	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	{
75	key_value * wants_field;	140	key_value *wants_field;
76		141
77	/* 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
78	* 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
79	* different structure or at least keep the lists sorted...	144	* different structure or at least keep the lists sorted...
80	*/	145	*/
81		146
82	/* For each field in wants, */	147	/* For each field in wants, */
83	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	{
84	key_value * has_field;	150	key_value *has_field;
85		151
86	/* Look for a field in has with the same key. */	152	/* Look for a field in has with the same key. */
87	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)
88		156	{
89	if (has_field == NULL) {
90	/* No field with that name. */	157	/* No field with that name. */
91	return FALSE;	158	return FALSE;
92	}
93		159	}
		160
94	/* Found the matching field. */	161	/* Found the matching field. */
95	if (has_field->value != wants_field->value) {	162	if (has_field->value != wants_field->value)
		163	{
96	/* 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. */
97	return FALSE;	165	return FALSE;
98	}	166	}
99		167
100	/* 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. */
101	}
102		169	}
		170
103	/* 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. */
104	return TRUE;	172	return TRUE;
105	}	173	}
106		174
107	/* 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
108	static int compare_ob_value_lists(const object * ob1, const object * ob2) {	177	compare_ob_value_lists (const object *ob1, const object *ob2)
		178	{
109	/* 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,
110	* so we need to run the comparison *twice*. :(	180	* so we need to run the comparison *twice*. :(
111	*/	181	*/
112	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);
113	}	183	}
114		184
115	/* 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
116	* they can be merged together.	186	* they can be merged together.
117	*	187	*
118	* 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
119	* replaces - this is mostly for clarity - a decent compiler should hopefully	189	* replaces - this is mostly for clarity - a decent compiler should hopefully
120	* reduce this to the same efficiency.	190	* reduce this to the same efficiency.
121	*	191	*
122	* Check nrof variable *before* calling CAN_MERGE()	192	* Check nrof variable *before* calling can_merge()
123	*	193	*
124	* Improvements made with merge: Better checking on potion, and also	194	* Improvements made with merge: Better checking on potion, and also
125	* check weight	195	* check weight
126	*/	196	*/
127		197	bool object::can_merge_slow (object *ob1, object *ob2)
128	int CAN_MERGE(object *ob1, object *ob2) {	198	{
129
130	/* A couple quicksanity checks */	199	/* A couple quicksanity checks */
131	if ((ob1 == ob2) || (ob1->type != ob2->type)) return 0;	200	if (ob1 == ob2
132		201	|| ob1->type != ob2->type
133	if (ob1->speed != ob2->speed) return 0;	202	|| ob1->speed != ob2->speed
134	/* Note sure why the following is the case - either the object has to	203	|| ob1->value != ob2->value
135	* be animated or have a very low speed. Is this an attempted monster	204	|| ob1->name != ob2->name)
136	* check?
137	*/
138	if (!QUERY_FLAG(ob1,FLAG_ANIMATE) && FABS((ob1)->speed) > MIN_ACTIVE_SPEED)
139	return 0;	205	return 0;
140		206
		207	//TODO: this ain't working well, use nicer and correct overflow check
141	/* Do not merge objects if nrof would overflow. We use 1UL<<31 since that	208	/* Do not merge objects if nrof would overflow. We use 1UL<<31 since that
142	* value could not be stored in a sint32 (which unfortunately sometimes is	209	* value could not be stored in a sint32 (which unfortunately sometimes is
143	* used to store nrof).	210	* used to store nrof).
144	*/	211	*/
145	if (ob1->nrof+ob2->nrof >= 1UL<<31)	212	if (ob1->nrof + ob2->nrof >= 1UL << 31)
146	return 0;	213	return 0;
147		214
148	/* This is really a spellbook check - really, we should
149	* check all objects in the inventory.
150	*/
151	if (ob1->inv || ob2->inv) {
152	/* if one object has inventory but the other doesn't, not equiv */
153	if ((ob1->inv && !ob2->inv) || (ob2->inv && !ob1->inv)) return 0;
154
155	/* Now check to see if the two inventory objects could merge */
156	if (!CAN_MERGE(ob1->inv, ob2->inv)) return 0;
157
158	/* inventory ok - still need to check rest of this object to see
159	* if it is valid.
160	*/
161	}
162
163	/* If the objects have been identified, set the BEEN_APPLIED flag.	215	/* If the objects have been identified, set the BEEN_APPLIED flag.
164	* This is to the comparison of the flags below will be OK. We	216	* This is to the comparison of the flags below will be OK. We
165	* just can't ignore the been applied or identified flags, as they	217	* just can't ignore the been applied or identified flags, as they
166	* are not equal - just if it has been identified, the been_applied	218	* are not equal - just if it has been identified, the been_applied
167	* flags lose any meaning.	219	* flags lose any meaning.
168	*/	220	*/
169	if (QUERY_FLAG(ob1, FLAG_IDENTIFIED))	221	if (QUERY_FLAG (ob1, FLAG_IDENTIFIED))
170	SET_FLAG(ob1, FLAG_BEEN_APPLIED);	222	SET_FLAG (ob1, FLAG_BEEN_APPLIED);
171		223
172	if (QUERY_FLAG(ob2, FLAG_IDENTIFIED))	224	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))
173	SET_FLAG(ob2, FLAG_BEEN_APPLIED);	225	SET_FLAG (ob2, FLAG_BEEN_APPLIED);
174		226
175		227	if ((ob1->flag ^ ob2->flag).reset (FLAG_INV_LOCKED).reset (FLAG_CLIENT_SENT).any ()
176	/* the 0x400000 on flags2 is FLAG_INV_LOCK. I don't think something	228	|| ob1->arch != ob2->arch
177	* being locked in inventory should prevent merging.	229	|| ob1->name != ob2->name
178	* 0x4 in flags3 is CLIENT_SENT	230	|| ob1->title != ob2->title
179	*/	231	|| ob1->msg != ob2->msg
180	if ((ob1->arch != ob2->arch) ||	232	|| ob1->weight != ob2->weight
181	(ob1->flags[0] != ob2->flags[0]) ||
182	(ob1->flags[1] != ob2->flags[1]) ||
183	((ob1->flags[2] & ~0x400000) != (ob2->flags[2] & ~ 0x400000)) ||
184	((ob1->flags[3] & ~0x4) != (ob2->flags[3] & ~0x4)) ||
185	(ob1->name != ob2->name) ||
186	(ob1->title != ob2->title) ||
187	(ob1->msg != ob2->msg) ||
188	(ob1->weight != ob2->weight) ||
189	(memcmp(&ob1->resist, &ob2->resist, sizeof(ob1->resist))!=0) ||	233	|| memcmp (&ob1->resist, &ob2->resist, sizeof (ob1->resist))
190	(memcmp(&ob1->stats, &ob2->stats, sizeof(ob1->stats))!=0) ||	234	|| memcmp (&ob1->stats , &ob2->stats , sizeof (ob1->stats) )
191	(ob1->attacktype != ob2->attacktype) ||	235	|| ob1->attacktype != ob2->attacktype
192	(ob1->magic != ob2->magic) ||	236	|| ob1->magic != ob2->magic
193	(ob1->slaying != ob2->slaying) ||	237	|| ob1->slaying != ob2->slaying
194	(ob1->skill != ob2->skill) ||	238	|| ob1->skill != ob2->skill
195	(ob1->value != ob2->value) ||	239	|| ob1->value != ob2->value
196	(ob1->animation_id != ob2->animation_id) ||	240	|| ob1->animation_id != ob2->animation_id
197	(ob1->client_type != ob2->client_type) ||	241	|| ob1->client_type != ob2->client_type
198	(ob1->materialname != ob2->materialname) ||	242	|| ob1->materialname != ob2->materialname
199	(ob1->lore != ob2->lore) ||	243	|| ob1->lore != ob2->lore
200	(ob1->subtype != ob2->subtype) ||	244	|| ob1->subtype != ob2->subtype
201	(ob1->move_type != ob2->move_type) ||	245	|| ob1->move_type != ob2->move_type
202	(ob1->move_block != ob2->move_block) ||	246	|| ob1->move_block != ob2->move_block
203	(ob1->move_allow != ob2->move_allow) ||	247	|| ob1->move_allow != ob2->move_allow
204	(ob1->move_on != ob2->move_on) ||	248	|| ob1->move_on != ob2->move_on
205	(ob1->move_off != ob2->move_off) ||	249	|| ob1->move_off != ob2->move_off
206	(ob1->move_slow != ob2->move_slow) ||	250	|| ob1->move_slow != ob2->move_slow
207	(ob1->move_slow_penalty != ob2->move_slow_penalty)	251	|| ob1->move_slow_penalty != ob2->move_slow_penalty)
208	)
209	return 0;	252	return 0;
210		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))
		261	return 0;
		262
		263	/* Now check to see if the two inventory objects could merge */
		264	if (!object::can_merge (ob1->inv, ob2->inv))
		265	return 0;
		266
		267	/* inventory ok - still need to check rest of this object to see
		268	* if it is valid.
		269	*/
		270	}
		271
211	/* 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,
212	* 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
213	* some items equipped, and we don't want those to merge.	274	* some items equipped, and we don't want those to merge.
214	*/	275	*/
215	if (QUERY_FLAG(ob1, FLAG_APPLIED) || QUERY_FLAG(ob2, FLAG_APPLIED))	276	if (QUERY_FLAG (ob1, FLAG_APPLIED) || QUERY_FLAG (ob2, FLAG_APPLIED))
216	return 0;	277	return 0;
217		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
218	switch (ob1->type) {	286	switch (ob1->type)
		287	{
219	case SCROLL:	288	case SCROLL:
220	if (ob1->level != ob2->level) return 0;	289	if (ob1->level != ob2->level)
		290	return 0;
221	break;	291	break;
222
223	}	292	}
		293
224	if (ob1->key_values != NULL || ob2->key_values != NULL) {	294	if (ob1->key_values != NULL || ob2->key_values != NULL)
		295	{
225	/* At least one of these has key_values. */	296	/* At least one of these has key_values. */
226	if ((ob1->key_values == NULL) != (ob2->key_values == NULL)) {	297	if ((ob1->key_values == NULL) != (ob2->key_values == NULL))
227	/* One has fields, but the other one doesn't. */	298	/* One has fields, but the other one doesn't. */
228	return 0;	299	return 0;
229	} else if (!compare_ob_value_lists(ob1, ob2)) {	300	else if (!compare_ob_value_lists (ob1, ob2))
230	return 0;	301	return 0;
231	}	302	}
		303
		304	//TODO: generate an event or call into perl for additional checks
		305	if (ob1->self || ob2->self)
232	}	306	{
		307	ob1->optimise ();
		308	ob2->optimise ();
233		309
		310	if (ob1->self || ob2->self)
		311	return 0;
		312	}
		313
234	/* Everything passes, must be OK. */	314	/* Everything passes, must be OK. */
235	return 1;	315	return 1;
236	}	316	}
237		317
238	/*	318	/*
239	* sum_weight() is a recursive function which calculates the weight	319	* sum_weight() is a recursive function which calculates the weight
240	* 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
241	* containers are carrying, and sums it up.	321	* containers are carrying, and sums it up.
242	*/	322	*/
243	signed long sum_weight(object *op) {	323	long
		324	sum_weight (object *op)
		325	{
244	signed long sum;	326	long sum;
245	object *inv;	327	object *inv;
		328
246	for(sum = 0, inv = op->inv; inv != NULL; inv = inv->below) {	329	for (sum = 0, inv = op->inv; inv != NULL; inv = inv->below)
		330	{
247	if (inv->inv)	331	if (inv->inv)
248	sum_weight(inv);	332	sum_weight (inv);
249	sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1);	333	sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1);
250	}	334	}
		335
251	if (op->type == CONTAINER && op->stats.Str)	336	if (op->type == CONTAINER && op->stats.Str)
252	sum = (sum * (100 - op->stats.Str))/100;	337	sum = (sum * (100 - op->stats.Str)) / 100;
		338
253	if(op->carrying != sum)	339	if (op->carrying != sum)
254	op->carrying = sum;	340	op->carrying = sum;
		341
255	return sum;	342	return sum;
256	}	343	}
257		344
258	/**	345	/**
259	* Return the outermost environment object for a given object.	346	* Return the outermost environment object for a given object.
260	*/	347	*/
261		348
		349	object *
262	object *object_get_env_recursive (object *op) {	350	object_get_env_recursive (object *op)
		351	{
263	while (op->env != NULL)	352	while (op->env != NULL)
264	op = op->env;	353	op = op->env;
265	return op;	354	return op;
266	}
267
268	/*
269	* Eneq(@csd.uu.se): Since we can have items buried in a character we need
270	* a better check. We basically keeping traversing up until we can't
271	* or find a player.
272	*/
273
274	object *is_player_inv (object *op) {
275	for (;op!=NULL&&op->type!=PLAYER; op=op->env)
276	if (op->env==op)
277	op->env = NULL;
278	return op;
279	}	355	}
280		356
281	/*	357	/*
282	* Used by: Crossedit: dump. Server DM commands: dumpbelow, dump.	358	* Used by: Crossedit: dump. Server DM commands: dumpbelow, dump.
283	* Some error messages.	359	* Some error messages.
284	* 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.
285	*/	361	*/
286		362
287	void dump_object2(object *op) {	363	char *
288	char *cp;
289	/* object *tmp;*/
290
291	if(op->arch!=NULL) {
292	strcat(errmsg,"arch ");
293	strcat(errmsg,op->arch->name?op->arch->name:"(null)");
294	strcat(errmsg,"\n");
295	if((cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)
296	strcat(errmsg,cp);
297	#if 0
298	/* Don't dump player diffs - they are too long, mostly meaningless, and
299	* will overflow the buffer.
300	* Changed so that we don't dump inventory either. This may
301	* also overflow the buffer.
302	*/
303	if(op->type!=PLAYER && (cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)
304	strcat(errmsg,cp);
305	for (tmp=op->inv; tmp; tmp=tmp->below)
306	dump_object2(tmp);
307	#endif
308	strcat(errmsg,"end\n");
309	} else {
310	strcat(errmsg,"Object ");
311	if (op->name==NULL) strcat(errmsg, "(null)");
312	else strcat(errmsg,op->name);
313	strcat(errmsg,"\n");
314	#if 0
315	if((cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)
316	strcat(errmsg,cp);
317	for (tmp=op->inv; tmp; tmp=tmp->below)
318	dump_object2(tmp);
319	#endif
320	strcat(errmsg,"end\n");
321	}
322	}
323
324	/*
325	* Dumps an object. Returns output in the static global errmsg array.
326	*/
327
328	void dump_object(object *op) {	364	dump_object (object *op)
329	if(op==NULL) {
330	strcpy(errmsg,"[NULL pointer]");
331	return;
332	}
333	errmsg[0]='\0';
334	dump_object2(op);
335	}
336
337	/* GROS - Dumps an object. Return the result into a string */
338	/* Note that no checking is done for the validity of the target string, so */
339	/* you need to be sure that you allocated enough space for it. */
340	void dump_me(object *op, char *outstr)
341	{	365	{
342	char *cp;	366	if (!op)
		367	return strdup ("[NULLOBJ]");
343		368
344	if(op==NULL)	369	object_freezer freezer;
345	{	370	save_object (freezer, op, 1);
346	strcpy(outstr,"[NULL pointer]");	371	return freezer.as_string ();
347	return;
348	}
349	outstr[0]='\0';
350
351	if(op->arch!=NULL)
352	{
353	strcat(outstr,"arch ");
354	strcat(outstr,op->arch->name?op->arch->name:"(null)");
355	strcat(outstr,"\n");
356	if((cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)
357	strcat(outstr,cp);
358	strcat(outstr,"end\n");
359	}
360	else
361	{
362	strcat(outstr,"Object ");
363	if (op->name==NULL)
364	strcat(outstr, "(null)");
365	else
366	strcat(outstr,op->name);
367	strcat(outstr,"\n");
368	strcat(outstr,"end\n");
369	}
370	}
371
372	/*
373	* This is really verbose...Can be triggered by the P key while in DM mode.
374	* All objects are dumped to stderr (or alternate logfile, if in server-mode)
375	*/
376
377	void dump_all_objects(void) {
378	object *op;
379	for(op=objects;op!=NULL;op=op->next) {
380	dump_object(op);
381	fprintf(logfile, "Object %d\n:%s\n", op->count, errmsg);
382	}
383	}	372	}
384		373
385	/*	374	/*
386	* 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
387	* multi-object 1 which is closest to the second object.	376	* multi-object 1 which is closest to the second object.
388	* If it's not a multi-object, it is returned.	377	* If it's not a multi-object, it is returned.
389	*/	378	*/
390		379
		380	object *
391	object *get_nearest_part(object *op, const object *pl) {	381	get_nearest_part (object *op, const object *pl)
		382	{
392	object *tmp,*closest;	383	object *tmp, *closest;
393	int last_dist,i;	384	int last_dist, i;
		385
394	if(op->more==NULL)	386	if (op->more == NULL)
395	return op;	387	return op;
396	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)
397	if((i=distance(tmp,pl))<last_dist)	389	if ((i = distance (tmp, pl)) < last_dist)
398	closest=tmp,last_dist=i;	390	closest = tmp, last_dist = i;
399	return closest;	391	return closest;
400	}	392	}
401		393
402	/*	394	/*
403	* 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.
404	*/	396	*/
405		397	object *
406	object *find_object(tag_t i) {	398	find_object (tag_t i)
407	object *op;	399	{
408	for(op=objects;op!=NULL;op=op->next)	400	return ((unsigned int)i) < objects.size ()
409	if(op->count==i)	401	? objects [i]
410	break;	402	: 0;
411	return op;
412	}	403	}
413		404
414	/*	405	/*
415	* 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.
416	* Used only by the patch command, but not all that useful.	407	* Used only by the patch command, but not all that useful.
417	* Enables features like "patch <name-of-other-player> food 999"	408	* Enables features like "patch <name-of-other-player> food 999"
418	*/	409	*/
419		410	object *
420	object *find_object_name(const char *str) {	411	find_object_name (const char *str)
421	const char *name=add_string(str);	412	{
		413	shstr_cmp str_ (str);
422	object *op;	414	object *op;
423	for(op=objects;op!=NULL;op=op->next)	415
		416	for_all_objects (op)
424	if(op->name==name)	417	if (op->name == str_)
425	break;	418	break;
426	free_string(name);	419
427	return op;	420	return op;
428	}	421	}
429		422
		423	void
430	void free_all_object_data(void) {	424	free_all_object_data ()
431	#ifdef MEMORY_DEBUG
432	object *op, *next;
433
434	for (op=free_objects; op!=NULL; ) {
435	next=op->next;
436	free(op);
437	nrofallocobjects--;
438	nroffreeobjects--;
439	op=next;
440	}
441	#endif
442	LOG(llevDebug,"%d allocated objects, %d free objects, STARMAX=%d\n",
443	nrofallocobjects, nroffreeobjects,STARTMAX);
444	}
445
446	/*
447	* Returns the object which this object marks as being the owner.
448	* A id-scheme is used to avoid pointing to objects which have been
449	* freed and are now reused. If this is detected, the owner is
450	* set to NULL, and NULL is returned.
451	* Changed 2004-02-12 - if the player is setting at the play again
452	* prompt, he is removed, and we don't want to treat him as an owner of
453	* anything, so check removed flag. I don't expect that this should break
454	* anything - once an object is removed, it is basically dead anyways.
455	*/
456
457	object *get_owner(object *op) {
458	if(op->owner==NULL)
459	return NULL;
460
461	if (!QUERY_FLAG(op->owner,FLAG_FREED) && !QUERY_FLAG(op->owner, FLAG_REMOVED) &&
462	op->owner->count==op->ownercount)
463	return op->owner;
464
465	op->owner=NULL;
466	op->ownercount=0;
467	return NULL;
468	}
469
470	void clear_owner(object *op)
471	{	425	{
472	if (!op) return;	426	LOG (llevDebug, "%d allocated objects\n", nrofallocobjects);
473
474	if (op->owner && op->ownercount == op->owner->count)
475	op->owner->refcount--;
476
477	op->owner = NULL;
478	op->ownercount = 0;
479	}	427	}
480
481
482		428
483	/*	429	/*
484	* 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
485	* skill and experience objects.	431	* skill and experience objects.
486	*/	432	*/
487	void set_owner (object *op, object *owner)	433	void
		434	object::set_owner (object *owner)
488	{	435	{
489	if(owner==NULL||op==NULL)	436	if (!owner)
490	return;	437	return;
491		438
492	/* next line added to allow objects which own objects */	439	/* next line added to allow objects which own objects */
493	/* 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
494	* with the fireball owning a poison cloud which then owned the	441	* with the fireball owning a poison cloud which then owned the
495	* 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
496	* freed and then another object replacing it. Since the ownercounts	443	* freed and then another object replacing it. Since the ownercounts
497	* 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.
498	*/	445	*/
499	while (owner->owner && owner!=owner->owner &&	446	while (owner->owner)
500	owner->ownercount==owner->owner->count) owner=owner->owner;	447	owner = owner->owner;
501		448
502	/* IF the owner still has an owner, we did not resolve to a final owner.
503	* so lets not add to that.
504	*/
505	if (owner->owner) return;
506
507	op->owner=owner;	449	this->owner = owner;
508
509	op->ownercount=owner->count;
510	owner->refcount++;
511
512	}
513
514	/* Set the owner to clone's current owner and set the skill and experience
515	* objects to clone's objects (typically those objects that where the owner's
516	* current skill and experience objects at the time when clone's owner was
517	* set - not the owner's current skill and experience objects).
518	*
519	* Use this function if player created an object (e.g. fire bullet, swarm
520	* spell), and this object creates further objects whose kills should be
521	* accounted for the player's original skill, even if player has changed
522	* skills meanwhile.
523	*/
524	void copy_owner (object *op, object *clone)
525	{
526	object *owner = get_owner (clone);
527	if (owner == NULL) {
528	/* players don't have owners - they own themselves. Update
529	* as appropriate.
530	*/
531	if (clone->type == PLAYER) owner=clone;
532	else return;
533	}
534	set_owner(op, owner);
535
536	}
537
538	/*
539	* Resets vital variables in an object
540	*/
541
542	void reset_object(object *op) {
543
544	op->name = NULL;
545	op->name_pl = NULL;
546	op->title = NULL;
547	op->race = NULL;
548	op->slaying = NULL;
549	op->skill = NULL;
550	op->msg = NULL;
551	op->materialname = NULL;
552	op->lore = NULL;
553	op->current_weapon_script = NULL;
554	clear_object(op);
555	}	450	}
556		451
557	/* Zero the key_values on op, decrementing the shared-string	452	/* Zero the key_values on op, decrementing the shared-string
558	* refcounts and freeing the links.	453	* refcounts and freeing the links.
559	*/	454	*/
		455	static void
560	static void free_key_values(object * op) {	456	free_key_values (object *op)
561	key_value * i;	457	{
562	key_value * next = NULL;	458	for (key_value *i = op->key_values; i != 0;)
563		459	{
564	if (op->key_values == NULL) return;	460	key_value *next = i->next;
		461	delete i;
		462
		463	i = next;
565		464	}
566	for (i = op->key_values; i != NULL; i = next) {	465
567	/* Store next *first*. */
568	next = i->next;
569
570	if (i->key) FREE_AND_CLEAR_STR(i->key);
571	if (i->value) FREE_AND_CLEAR_STR(i->value);
572	i->next = NULL;
573	free(i);
574	}
575
576	op->key_values = NULL;	466	op->key_values = 0;
577	}	467	}
578		468
579
580	/*	469	/*
581	* clear_object() frees everything allocated by an object, and also
582	* clears all variables and flags to default settings.
583	*/
584
585	void clear_object(object *op) {
586
587	if (object_free_callback)
588	object_free_callback (op);
589
590	event *evt;
591	event *evt2;
592
593	/* redo this to be simpler/more efficient. Was also seeing
594	* crashes in the old code. Move this to the top - am
595	* seeing periodic crashes in this code, and would like to have
596	* as much info available as possible (eg, object name).
597	*/
598	for (evt = op->events; evt; evt=evt2) {
599	evt2 = evt->next;
600
601	if (evt->hook != NULL) FREE_AND_CLEAR_STR(evt->hook);
602	if (evt->plugin != NULL) FREE_AND_CLEAR_STR(evt->plugin);
603	if (evt->options != NULL) FREE_AND_CLEAR_STR(evt->options);
604
605	free(evt);
606	}
607	op->events = NULL;
608
609	free_key_values(op);
610
611	/* the memset will clear all these values for us, but we need
612	* to reduce the refcount on them.
613	*/
614	if (op->name!=NULL) FREE_AND_CLEAR_STR(op->name);
615	if (op->name_pl!=NULL) FREE_AND_CLEAR_STR(op->name_pl);
616	if (op->title != NULL) FREE_AND_CLEAR_STR(op->title);
617	if (op->race!=NULL) FREE_AND_CLEAR_STR(op->race);
618	if (op->slaying!=NULL) FREE_AND_CLEAR_STR(op->slaying);
619	if (op->skill!=NULL) FREE_AND_CLEAR_STR(op->skill);
620	if (op->msg!=NULL) FREE_AND_CLEAR_STR(op->msg);
621	if (op->lore!=NULL) FREE_AND_CLEAR_STR(op->lore);
622	if (op->materialname!= NULL) FREE_AND_CLEAR_STR(op->materialname);
623
624
625	memset((void*)op, 0, sizeof (object_special));
626	/* Below here, we clear things that are not done by the memset,
627	* or set default values that are not zero.
628	*/
629	/* This is more or less true */
630	SET_FLAG(op, FLAG_REMOVED);
631
632
633	op->contr = NULL;
634	op->below=NULL;
635	op->above=NULL;
636	op->inv=NULL;
637	op->events=NULL;
638	op->container=NULL;
639	op->env=NULL;
640	op->more=NULL;
641	op->head=NULL;
642	op->map=NULL;
643	op->refcount=0;
644	op->active_next = NULL;
645	op->active_prev = NULL;
646	/* What is not cleared is next, prev, and count */
647
648	op->expmul=1.0;
649	op->face = blank_face;
650	op->attacked_by_count = (tag_t) -1;
651	if (settings.casting_time)
652	op->casting_time = -1;
653
654	}
655
656	/*
657	* copy object first frees everything allocated by the second object,	470	* copy_to first frees everything allocated by the dst object,
658	* and then copies the contends of the first object into the second	471	* and then copies the contents of itself into the second
659	* object, allocating what needs to be allocated. Basically, any	472	* object, allocating what needs to be allocated. Basically, any
660	* 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,
661	* 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
662	* will point at garbage.	475	* will point at garbage.
663	*/	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);
664		482
665	void copy_object(object *op2, object *op) {	483	*(object_copy *)dst = *this;
666	int is_freed=QUERY_FLAG(op,FLAG_FREED),is_removed=QUERY_FLAG(op,FLAG_REMOVED);
667	event *evt, *evt2, *evt_new;
668		484
669	if (object_free_callback)	485	if (is_freed)
670	object_free_callback (op);	486	SET_FLAG (dst, FLAG_FREED);
671		487
672	// callback registries and self are empty for copied objects	488	if (is_removed)
673	// this ought to change in the future	489	SET_FLAG (dst, FLAG_REMOVED);
674		490
675	/* Decrement the refcounts, but don't bother zeroing the fields;	491	if (speed < 0)
676	they'll be overwritten by memcpy. */
677	if(op->name!=NULL) free_string(op->name);
678	if(op->name_pl!=NULL) free_string(op->name_pl);
679	if(op->title!=NULL) free_string(op->title);
680	if(op->race!=NULL) free_string(op->race);
681	if(op->slaying!=NULL) free_string(op->slaying);
682	if(op->skill!=NULL) free_string(op->skill);
683	if(op->msg!=NULL) free_string(op->msg);
684	if(op->lore!=NULL) free_string(op->lore);
685	if(op->materialname != NULL) free_string(op->materialname);
686	if(op->custom_name != NULL) free_string(op->custom_name);
687
688	/* Basically, same code as from clear_object() */
689	for (evt = op->events; evt; evt=evt2) {
690	evt2 = evt->next;
691
692	if (evt->hook != NULL) FREE_AND_CLEAR_STR(evt->hook);
693	if (evt->plugin != NULL) FREE_AND_CLEAR_STR(evt->plugin);
694	if (evt->options != NULL) FREE_AND_CLEAR_STR(evt->options);
695
696	free(evt);
697	}
698	op->events = NULL;
699
700	free_key_values(op);
701
702	*(object_special *)op = *(object_special *)op2;
703
704	if(is_freed) SET_FLAG(op,FLAG_FREED);
705	if(is_removed) SET_FLAG(op,FLAG_REMOVED);
706	if(op->name!=NULL) add_refcount(op->name);
707	if(op->name_pl!=NULL) add_refcount(op->name_pl);
708	if(op->title!=NULL) add_refcount(op->title);
709	if(op->race!=NULL) add_refcount(op->race);
710	if(op->slaying!=NULL) add_refcount(op->slaying);
711	if(op->skill!=NULL) add_refcount(op->skill);
712	if(op->lore!=NULL) add_refcount(op->lore);
713	if(op->msg!=NULL) add_refcount(op->msg);
714	if(op->custom_name!=NULL) add_refcount(op->custom_name);
715	if (op->materialname != NULL) add_refcount(op->materialname);
716
717	if((op2->speed<0) && !editor)
718	op->speed_left=op2->speed_left-RANDOM()%200/100.0;	492	dst->speed_left = speed_left - RANDOM () % 200 / 100.0;
719		493
720	/* Copy over event information */
721	evt2 = NULL;
722	for (evt = op2->events; evt; evt=evt->next) {
723	evt_new = (event *) malloc(sizeof(event));
724	memcpy(evt_new, evt, sizeof(event));
725	if (evt_new->hook) add_refcount(evt_new->hook);
726	if (evt_new->plugin) add_refcount(evt_new->plugin);
727	if (evt_new->options) add_refcount(evt_new->options);
728	evt_new->next = NULL;
729
730	/* Try to be a little clever here, and store away the
731	* last event we copied, so that its simpler to update the
732	* pointer.
733	*/
734	if (evt2)
735	evt2->next = evt_new;
736	else
737	op->events = evt_new;
738
739	evt2 = evt_new;
740	}
741	/* Copy over key_values, if any. */	494	/* Copy over key_values, if any. */
742	if (op2->key_values != NULL) {	495	if (key_values)
743	key_value * tail = NULL;	496	{
		497	key_value *tail = 0;
744	key_value * i;	498	key_value *i;
745		499
746	op->key_values = NULL;	500	dst->key_values = 0;
747		501
748	for (i = op2->key_values; i != NULL; i = i->next) {	502	for (i = key_values; i; i = i->next)
749	key_value * new_link = (key_value *) malloc(sizeof(key_value));	503	{
		504	key_value *new_link = new key_value;
750		505
751	new_link->next = NULL;	506	new_link->next = 0;
752	new_link->key = add_refcount(i->key);	507	new_link->key = i->key;
753	if (i->value)	508	new_link->value = i->value;
754	new_link->value = add_refcount(i->value);
755	else
756	new_link->value = NULL;
757		509
758	/* Try and be clever here, too. */	510	/* Try and be clever here, too. */
759	if (op->key_values == NULL) {	511	if (!dst->key_values)
760	op->key_values = new_link;	512	{
761	tail = new_link;	513	dst->key_values = new_link;
762	} else {	514	tail = new_link;
763	tail->next = new_link;	515	}
764	tail = new_link;	516	else
		517	{
		518	tail->next = new_link;
		519	tail = new_link;
		520	}
		521	}
765	}	522	}
766	}
767	}
768		523
769	update_ob_speed(op);	524	dst->set_speed (dst->speed);
770	}	525	}
771		526
772	/*
773	* expand_objects() allocates more objects for the list of unused objects.
774	* It is called from get_object() if the unused list is empty.
775	*/
776
777	void expand_objects(void) {
778	int i;
779	object *obj;
780	obj = (object *) CALLOC(OBJ_EXPAND,sizeof(object));
781
782	if(obj==NULL)
783	fatal(OUT_OF_MEMORY);
784	free_objects=obj;
785	obj[0].prev=NULL;
786	obj[0].next= &obj[1],
787	SET_FLAG(&(obj[0]), FLAG_REMOVED);
788	SET_FLAG(&(obj[0]), FLAG_FREED);
789
790	for(i=1;i<OBJ_EXPAND-1;i++) {
791	obj[i].next= &obj[i+1],
792	obj[i].prev= &obj[i-1],
793	SET_FLAG(&(obj[i]), FLAG_REMOVED);
794	SET_FLAG(&(obj[i]), FLAG_FREED);
795	}
796	obj[OBJ_EXPAND-1].prev= &obj[OBJ_EXPAND-2],
797	obj[OBJ_EXPAND-1].next=NULL,
798	SET_FLAG(&(obj[OBJ_EXPAND-1]), FLAG_REMOVED);
799	SET_FLAG(&(obj[OBJ_EXPAND-1]), FLAG_FREED);
800
801	nrofallocobjects += OBJ_EXPAND;
802	nroffreeobjects += OBJ_EXPAND;
803	}
804
805	/*
806	* get_object() grabs an object from the list of unused objects, makes
807	* sure it is initialised, and returns it.
808	* If there are no free objects, expand_objects() is called to get more.
809	*/
810
811	object *get_object(void) {
812	object *op;	527	object *
813		528	object::clone ()
814	if(free_objects==NULL) {	529	{
815	expand_objects();	530	object *neu = create ();
816	}	531	copy_to (neu);
817	op=free_objects;
818	#ifdef MEMORY_DEBUG
819	/* The idea is hopefully by doing a realloc, the memory
820	* debugging program will now use the current stack trace to
821	* report leaks.
822	*/
823	op = realloc(op, sizeof(object));
824	SET_FLAG(op, FLAG_REMOVED);
825	SET_FLAG(op, FLAG_FREED);
826	#endif
827
828	if(!QUERY_FLAG(op,FLAG_FREED)) {
829	LOG(llevError,"Fatal: Getting busy object.\n");
830	}
831	free_objects=op->next;
832	if(free_objects!=NULL)
833	free_objects->prev=NULL;
834	op->count= ++ob_count;
835	op->name=NULL;
836	op->name_pl=NULL;
837	op->title=NULL;
838	op->race=NULL;
839	op->slaying=NULL;
840	op->skill = NULL;
841	op->lore=NULL;
842	op->msg=NULL;
843	op->materialname=NULL;
844	op->next=objects;
845	op->prev=NULL;
846	op->active_next = NULL;
847	op->active_prev = NULL;
848	if(objects!=NULL)
849	objects->prev=op;
850	objects=op;
851	clear_object(op);
852	SET_FLAG(op,FLAG_REMOVED);
853	nroffreeobjects--;
854	return op;	532	return neu;
855	}	533	}
856		534
857	/*	535	/*
858	* 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
859	* 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
860	* 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.
861	*/	539	*/
862		540	void
863	void update_turn_face(object *op) {	541	update_turn_face (object *op)
		542	{
864	if(!QUERY_FLAG(op,FLAG_IS_TURNABLE)||op->arch==NULL)	543	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || !op->arch)
865	return;	544	return;
		545
866	SET_ANIMATION(op, op->direction);	546	SET_ANIMATION (op, op->direction);
867	update_object(op,UP_OBJ_FACE);	547	update_object (op, UP_OBJ_FACE);
868	}	548	}
869		549
870	/*	550	/*
871	* 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
872	* 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.
873	* 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.
874	*/	554	*/
875		555	void
876	void update_ob_speed(object *op) {	556	object::set_speed (float speed)
877	extern int arch_init;	557	{
878		558	if (flag [FLAG_FREED] && speed)
879	/* No reason putting the archetypes objects on the speed list,	559	{
880	* since they never really need to be updated.
881	*/
882
883	if (QUERY_FLAG(op, FLAG_FREED) && op->speed) {
884	LOG(llevError,"Object %s is freed but has speed.\n", op->name);	560	LOG (llevError, "Object %s is freed but has speed.\n", &name);
885	#ifdef MANY_CORES	561	speed = 0;
886	abort();
887	#else
888	op->speed = 0;
889	#endif
890	}	562	}
891	if (arch_init) {
892	return;
893	}
894	if (FABS(op->speed)>MIN_ACTIVE_SPEED) {
895	/* If already on active list, don't do anything */
896	if (op->active_next || op->active_prev || op==active_objects)
897	return;
898		563
899	/* process_events() expects us to insert the object at the beginning	564	this->speed = speed;
900	* of the list. */	565
901	op->active_next = active_objects;	566	if (has_active_speed ())
902	if (op->active_next!=NULL)	567	activate ();
903	op->active_next->active_prev = op;
904	active_objects = op;
905	}
906	else {	568	else
907	/* If not on the active list, nothing needs to be done */	569	deactivate ();
908	if (!op->active_next && !op->active_prev && op!=active_objects)
909	return;
910
911	if (op->active_prev==NULL) {
912	active_objects = op->active_next;
913	if (op->active_next!=NULL)
914	op->active_next->active_prev = NULL;
915	}
916	else {
917	op->active_prev->active_next = op->active_next;
918	if (op->active_next)
919	op->active_next->active_prev = op->active_prev;
920	}
921	op->active_next = NULL;
922	op->active_prev = NULL;
923	}
924	}	570	}
925		571
926	/* This function removes object 'op' from the list of active
927	* objects.
928	* This should only be used for style maps or other such
929	* reference maps where you don't want an object that isn't
930	* in play chewing up cpu time getting processed.
931	* The reverse of this is to call update_ob_speed, which
932	* will do the right thing based on the speed of the object.
933	*/
934	void remove_from_active_list(object *op)
935	{
936	/* If not on the active list, nothing needs to be done */
937	if (!op->active_next && !op->active_prev && op!=active_objects)
938	return;
939
940	if (op->active_prev==NULL) {
941	active_objects = op->active_next;
942	if (op->active_next!=NULL)
943	op->active_next->active_prev = NULL;
944	}
945	else {
946	op->active_prev->active_next = op->active_next;
947	if (op->active_next)
948	op->active_next->active_prev = op->active_prev;
949	}
950	op->active_next = NULL;
951	op->active_prev = NULL;
952	}
953
954	/*	572	/*
955	* update_object() updates the array which represents the map.	573	* update_object() updates the the map.
956	* It takes into account invisible objects (and represent squares covered	574	* It takes into account invisible objects (and represent squares covered
957	* 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
958	* invisible object, etc...)	576	* invisible object, etc...)
959	* 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
960	* 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
961	* updating that window, though, since update_object() is called _often_)	579	* updating that window, though, since update_object() is called _often_)
962	*	580	*
963	* 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.
964	* For example, if the only thing that has changed is the face (due to
965	* an animation), we don't need to call update_position until that actually
966	* comes into view of a player. OTOH, many other things, like addition/removal
967	* of walls or living creatures may need us to update the flags now.
968	* current action are:	582	* current action are:
969	* UP_OBJ_INSERT: op was inserted	583	* UP_OBJ_INSERT: op was inserted
970	* UP_OBJ_REMOVE: op was removed	584	* UP_OBJ_REMOVE: op was removed
971	* 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
972	* 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.
973	* UP_OBJ_FACE: only the objects face has changed.	587	* UP_OBJ_FACE: only the objects face has changed.
974	*/	588	*/
975		589	void
976	void update_object(object *op, int action) {	590	update_object (object *op, int action)
977	int update_now=0, flags;	591	{
978	MoveType move_on, move_off, move_block, move_slow;	592	MoveType move_on, move_off, move_block, move_slow;
979		593
980	if (op == NULL) {	594	if (op == NULL)
		595	{
981	/* this should never happen */	596	/* this should never happen */
982	LOG(llevDebug,"update_object() called for NULL object.\n");	597	LOG (llevDebug, "update_object() called for NULL object.\n");
983	return;	598	return;
984	}
985		599	}
986	if(op->env!=NULL) {	600
		601	if (op->env)
		602	{
987	/* Animation is currently handled by client, so nothing	603	/* Animation is currently handled by client, so nothing
988	* to do in this case.	604	* to do in this case.
989	*/	605	*/
990	return;	606	return;
991	}	607	}
992		608
993	/* 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
994	* going to get freed anyways.	610	* going to get freed anyways.
995	*/	611	*/
996	if (!op->map || op->map->in_memory == MAP_SAVING) return;	612	if (!op->map || op->map->in_memory == MAP_SAVING)
997		613	return;
		614
998	/* make sure the object is within map boundaries */	615	/* make sure the object is within map boundaries */
999	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)
1000	op->y < 0 || op->y >= MAP_HEIGHT(op->map)) {	617	{
1001	LOG(llevError,"update_object() called for object out of map!\n");	618	LOG (llevError, "update_object() called for object out of map!\n");
1002	#ifdef MANY_CORES	619	#ifdef MANY_CORES
1003	abort();	620	abort ();
1004	#endif	621	#endif
1005	return;	622	return;
1006	}
1007		623	}
1008	flags = GET_MAP_FLAGS(op->map, op->x, op->y);
1009	SET_MAP_FLAGS(op->map, op->x, op->y, flags | P_NEED_UPDATE);
1010	move_slow = GET_MAP_MOVE_SLOW(op->map, op->x, op->y);
1011	move_on = GET_MAP_MOVE_ON(op->map, op->x, op->y);
1012	move_block = GET_MAP_MOVE_BLOCK(op->map, op->x, op->y);
1013	move_off = GET_MAP_MOVE_OFF(op->map, op->x, op->y);
1014		624
		625	mapspace &m = op->ms ();
		626
		627	if (!(m.flags_ & P_UPTODATE))
		628	/* nop */;
1015	if (action == UP_OBJ_INSERT) {	629	else if (action == UP_OBJ_INSERT)
		630	{
		631	// this is likely overkill, TODO: revisit (schmorp)
1016	if (QUERY_FLAG(op, FLAG_BLOCKSVIEW) && !(flags & P_BLOCKSVIEW))	632	if ((QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(m.flags_ & P_BLOCKSVIEW))
1017	update_now=1;
1018
1019	if (QUERY_FLAG(op, FLAG_NO_MAGIC) && !(flags & P_NO_MAGIC))	633	|| (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(m.flags_ & P_NO_MAGIC))
1020	update_now=1;	634	|| (op->type == PLAYER && !(m.flags_ & P_PLAYER))
1021		635	|| (op->type == SAFE_GROUND && !(m.flags_ & P_SAFE))
		636	|| (QUERY_FLAG (op, FLAG_ALIVE) && !(m.flags_ & P_IS_ALIVE))
1022	if (QUERY_FLAG(op, FLAG_DAMNED) && !(flags & P_NO_CLERIC))	637	|| (QUERY_FLAG (op, FLAG_DAMNED) && !(m.flags_ & P_NO_CLERIC))
1023	update_now=1;	638	|| (m.move_on | op->move_on ) != m.move_on
1024		639	|| (m.move_off | op->move_off ) != m.move_off
1025	if (QUERY_FLAG(op, FLAG_ALIVE) && !(flags & P_IS_ALIVE))	640	|| (m.move_slow | op->move_slow) != m.move_slow
1026	update_now=1;
1027
1028	if ((move_on | op->move_on) != move_on) update_now=1;
1029	if ((move_off | op->move_off) != move_off) update_now=1;
1030	/* 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
1031	* to have move_allow right now.	642	* to have move_allow right now.
1032	*/	643	*/
1033	if (((move_block | op->move_block) & ~op->move_allow) != move_block)	644	|| ((m.move_block | op->move_block) & ~op->move_allow) != m.move_block
1034	update_now=1;	645	|| 1) // the above is not strong enough a test to skip updating. los maybe? TODO (Schmorp)
1035	if ((move_slow | op->move_slow) != move_slow) update_now=1;	646	m.flags_ = 0;
1036	}	647	}
1037	/* if the object is being removed, we can't make intelligent	648	/* if the object is being removed, we can't make intelligent
1038	* decisions, because remove_ob can't really pass the object	649	* decisions, because remove_ob can't really pass the object
1039	* that is being removed.	650	* that is being removed.
1040	*/	651	*/
1041	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE) {	652	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)
1042	update_now=1;	653	m.flags_ = 0;
1043	} else if (action == UP_OBJ_FACE) {	654	else if (action == UP_OBJ_FACE)
1044	/* Nothing to do for that case */	655	/* Nothing to do for that case */ ;
1045	}
1046	else {	656	else
1047	LOG(llevError,"update_object called with invalid action: %d\n", action);	657	LOG (llevError, "update_object called with invalid action: %d\n", action);
1048	}
1049		658
1050	if (update_now) {
1051	SET_MAP_FLAGS(op->map, op->x, op->y, flags | P_NO_ERROR | P_NEED_UPDATE);
1052	update_position(op->map, op->x, op->y);
1053	}
1054
1055	if(op->more!=NULL)	659	if (op->more)
1056	update_object(op->more, action);	660	update_object (op->more, action);
1057	}	661	}
1058		662
		663	object *object::first;
1059		664
1060	/*	665	object::object ()
1061	* free_object() frees everything allocated by an object, removes	666	{
1062	* it from the list of used objects, and puts it on the list of	667	SET_FLAG (this, FLAG_REMOVED);
1063	* free objects. The IS_FREED() flag is set in the object.	668
1064	* The object must have been removed by remove_ob() first for	669	expmul = 1.0;
1065	* this function to succeed.	670	face = blank_face;
		671	}
		672
		673	object::~object ()
		674	{
		675	free_key_values (this);
		676	}
		677
		678	void object::link ()
		679	{
		680	uuid = gen_uuid ();
		681
		682	refcnt_inc ();
		683	objects.insert (this);
		684	}
		685
		686	void object::unlink ()
		687	{
		688	objects.erase (this);
		689	refcnt_dec ();
		690	}
		691
		692	void
		693	object::activate ()
		694	{
		695	/* If already on active list, don't do anything */
		696	if (active)
		697	return;
		698
		699	if (has_active_speed ())
		700	actives.insert (this);
		701	}
		702
		703	void
		704	object::activate_recursive ()
		705	{
		706	activate ();
		707
		708	for (object *op = inv; op; op = op->below)
		709	op->activate_recursive ();
		710	}
		711
		712	/* This function removes object 'op' from the list of active
		713	* objects.
		714	* This should only be used for style maps or other such
		715	* reference maps where you don't want an object that isn't
		716	* in play chewing up cpu time getting processed.
		717	* The reverse of this is to call update_ob_speed, which
		718	* will do the right thing based on the speed of the object.
1066	*	719	*/
1067	* If free_inventory is set, free inventory as well. Else drop items in	720	void
1068	* inventory to the ground.	721	object::deactivate ()
1069	*/	722	{
		723	/* If not on the active list, nothing needs to be done */
		724	if (!active)
		725	return;
1070		726
1071	void free_object(object *ob) {	727	actives.erase (this);
1072	free_object2(ob, 0);
1073	}	728	}
1074	void free_object2(object *ob, int free_inventory) {
1075	object *tmp,*op;
1076		729
1077	if (object_free_callback)	730	void
1078	object_free_callback (ob);	731	object::deactivate_recursive ()
		732	{
		733	for (object *op = inv; op; op = op->below)
		734	op->deactivate_recursive ();
1079		735
1080	if (!QUERY_FLAG(ob,FLAG_REMOVED)) {	736	deactivate ();
1081	LOG(llevDebug,"Free object called with non removed object\n");	737	}
1082	dump_object(ob);	738
1083	#ifdef MANY_CORES	739	void
1084	abort();	740	object::set_flag_inv (int flag, int value)
1085	#endif	741	{
		742	for (object *op = inv; op; op = op->below)
1086	}	743	{
1087	if(QUERY_FLAG(ob,FLAG_FRIENDLY)) {	744	op->flag [flag] = value;
1088	LOG(llevMonster,"Warning: tried to free friendly object.\n");	745	op->set_flag_inv (flag, value);
1089	remove_friendly_object(ob);
1090	}	746	}
1091	if(QUERY_FLAG(ob,FLAG_FREED)) {	747	}
1092	dump_object(ob);	748
1093	LOG(llevError,"Trying to free freed object.\n%s\n",errmsg);	749	/*
1094	return;	750	* Remove and free all objects in the inventory of the given object.
1095	}	751	* object.c ?
1096	if(ob->more!=NULL) {	752	*/
1097	free_object2(ob->more, free_inventory);	753	void
1098	ob->more=NULL;	754	object::destroy_inv (bool drop_to_ground)
1099	}	755	{
1100	if (ob->inv) {	756	// need to check first, because the checks below might segfault
		757	// as we might be on an invalid mapspace and crossfire code
		758	// is too buggy to ensure that the inventory is empty.
		759	// corollary: if you create arrows etc. with stuff in tis inventory,
		760	// cf will crash below with off-map x and y
		761	if (!inv)
		762	return;
		763
1101	/* Only if the space blocks everything do we not process -	764	/* Only if the space blocks everything do we not process -
1102	* if some form of movemnt is allowed, let objects	765	* if some form of movement is allowed, let objects
1103	* drop on that space.	766	* drop on that space.
1104	*/	767	*/
1105	if (free_inventory || ob->map==NULL || ob->map->in_memory!=MAP_IN_MEMORY ||	768	if (!drop_to_ground
1106	(GET_MAP_MOVE_BLOCK(ob->map, ob->x, ob->y) == MOVE_ALL))	769	|| !map
1107	{	770	|| map->in_memory != MAP_IN_MEMORY
1108	op=ob->inv;	771	|| ms ().move_block == MOVE_ALL)
1109	while(op!=NULL) {	772	{
1110	tmp=op->below;	773	while (inv)
1111	remove_ob(op);	774	{
1112	free_object2(op, free_inventory);	775	inv->destroy_inv (drop_to_ground);
1113	op=tmp;	776	inv->destroy ();
		777	}
1114	}	778	}
1115	}	779	else
1116	else { /* Put objects in inventory onto this space */	780	{ /* Put objects in inventory onto this space */
1117	op=ob->inv;	781	while (inv)
1118	while(op!=NULL) {	782	{
1119	tmp=op->below;	783	object *op = inv;
1120	remove_ob(op);	784
1121	if(QUERY_FLAG(op,FLAG_STARTEQUIP)||QUERY_FLAG(op,FLAG_NO_DROP) ||	785	if (op->flag [FLAG_STARTEQUIP]
1122	op->type==RUNE || op->type==TRAP || QUERY_FLAG(op,FLAG_IS_A_TEMPLATE))	786	|| op->flag [FLAG_NO_DROP]
1123	free_object(op);	787	|| op->type == RUNE
1124	else {	788	|| op->type == TRAP
1125	op->x=ob->x;	789	|| op->flag [FLAG_IS_A_TEMPLATE]
1126	op->y=ob->y;	790	|| op->flag [FLAG_DESTROY_ON_DEATH])
1127	insert_ob_in_map(op,ob->map,NULL,0); /* Insert in same map as the envir */	791	op->destroy ();
1128	}	792	else
1129	op=tmp;	793	map->insert (op, x, y);
		794	}
1130	}	795	}
1131	}	796	}
		797
		798	object *object::create ()
		799	{
		800	object *op = new object;
		801	op->link ();
		802	return op;
		803	}
		804
		805	void
		806	object::do_destroy ()
		807	{
		808	if (flag [FLAG_IS_LINKED])
		809	remove_button_link (this);
		810
		811	if (flag [FLAG_FRIENDLY])
		812	remove_friendly_object (this);
		813
		814	if (!flag [FLAG_REMOVED])
		815	remove ();
		816
		817	if (flag [FLAG_FREED])
		818	return;
		819
		820	set_speed (0);
		821
		822	flag [FLAG_FREED] = 1;
		823
		824	attachable::do_destroy ();
		825
		826	destroy_inv (true);
		827	unlink ();
		828
		829	// hack to ensure that freed objects still have a valid map
		830	{
		831	static maptile *freed_map; // freed objects are moved here to avoid crashes
		832
		833	if (!freed_map)
		834	{
		835	freed_map = new maptile;
		836
		837	freed_map->name = "/internal/freed_objects_map";
		838	freed_map->width = 3;
		839	freed_map->height = 3;
		840
		841	freed_map->alloc ();
		842	freed_map->in_memory = MAP_IN_MEMORY;
1132	}	843	}
1133	/* Remove object from the active list */
1134	ob->speed = 0;
1135	update_ob_speed(ob);
1136		844
1137	SET_FLAG(ob, FLAG_FREED);	845	map = freed_map;
1138	ob->count = 0;	846	x = 1;
1139		847	y = 1;
1140	/* Remove this object from the list of used objects */
1141	if(ob->prev==NULL) {
1142	objects=ob->next;
1143	if(objects!=NULL)
1144	objects->prev=NULL;
1145	}
1146	else {
1147	ob->prev->next=ob->next;
1148	if(ob->next!=NULL)
1149	ob->next->prev=ob->prev;
1150	}
1151		848	}
1152	if(ob->name!=NULL) FREE_AND_CLEAR_STR(ob->name);
1153	if(ob->name_pl!=NULL) FREE_AND_CLEAR_STR(ob->name_pl);
1154	if(ob->title!=NULL) FREE_AND_CLEAR_STR(ob->title);
1155	if(ob->race!=NULL) FREE_AND_CLEAR_STR(ob->race);
1156	if(ob->slaying!=NULL) FREE_AND_CLEAR_STR(ob->slaying);
1157	if(ob->skill!=NULL) FREE_AND_CLEAR_STR(ob->skill);
1158	if(ob->lore!=NULL) FREE_AND_CLEAR_STR(ob->lore);
1159	if(ob->msg!=NULL) FREE_AND_CLEAR_STR(ob->msg);
1160	if(ob->materialname!=NULL) FREE_AND_CLEAR_STR(ob->materialname);
1161		849
		850	head = 0;
		851
		852	if (more)
1162		853	{
1163	/* Why aren't events freed? */	854	more->destroy ();
1164	free_key_values(ob);	855	more = 0;
		856	}
1165		857
1166	#if 0 /* MEMORY_DEBUG*/	858	// clear those pointers that likely might have circular references to us
1167	/* This is a nice idea. Unfortunately, a lot of the code in crossfire	859	owner = 0;
1168	* presumes the freed_object will stick around for at least a little	860	enemy = 0;
1169	* bit	861	attacked_by = 0;
1170	*/
1171	/* this is necessary so that memory debugging programs will
1172	* be able to accurately report source of malloc. If we recycle
1173	* objects, then some other area may be doing the get_object
1174	* and not freeing it, but the original one that malloc'd the
1175	* object will get the blame.
1176	*/
1177	free(ob);
1178	#else
1179
1180	/* Now link it with the free_objects list: */
1181	ob->prev=NULL;
1182	ob->next=free_objects;
1183	if(free_objects!=NULL)
1184	free_objects->prev=ob;
1185	free_objects=ob;
1186	nroffreeobjects++;
1187	#endif
1188	}	862	}
1189		863
1190	/*	864	void
1191	* count_free() returns the number of objects on the list of free objects.	865	object::destroy (bool destroy_inventory)
1192	*/	866	{
1193		867	if (destroyed ())
1194	int count_free(void) {
1195	int i=0;
1196	object *tmp=free_objects;
1197	while(tmp!=NULL)
1198	tmp=tmp->next, i++;
1199	return i;	868	return;
1200	}
1201		869
1202	/*	870	if (destroy_inventory)
1203	* count_used() returns the number of objects on the list of used objects.	871	destroy_inv (false);
1204	*/
1205		872
1206	int count_used(void) {	873	attachable::destroy ();
1207	int i=0;
1208	object *tmp=objects;
1209	while(tmp!=NULL)
1210	tmp=tmp->next, i++;
1211	return i;
1212	}
1213
1214	/*
1215	* count_active() returns the number of objects on the list of active objects.
1216	*/
1217
1218	int count_active(void) {
1219	int i=0;
1220	object *tmp=active_objects;
1221	while(tmp!=NULL)
1222	tmp=tmp->active_next, i++;
1223	return i;
1224	}	874	}
1225		875
1226	/*	876	/*
1227	* sub_weight() recursively (outwards) subtracts a number from the	877	* sub_weight() recursively (outwards) subtracts a number from the
1228	* weight of an object (and what is carried by it's environment(s)).	878	* weight of an object (and what is carried by it's environment(s)).
1229	*/	879	*/
1230		880	void
1231	void sub_weight (object *op, signed long weight) {	881	sub_weight (object *op, signed long weight)
		882	{
1232	while (op != NULL) {	883	while (op != NULL)
		884	{
1233	if (op->type == CONTAINER) {	885	if (op->type == CONTAINER)
1234	weight=(signed long)(weight*(100-op->stats.Str)/100);	886	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1235	}	887
1236	op->carrying-=weight;	888	op->carrying -= weight;
1237	op = op->env;	889	op = op->env;
1238	}	890	}
1239	}	891	}
1240		892
1241	/* remove_ob(op):	893	/* op->remove ():
1242	* This function removes the object op from the linked list of objects	894	* This function removes the object op from the linked list of objects
1243	* which it is currently tied to. When this function is done, the	895	* which it is currently tied to. When this function is done, the
1244	* object will have no environment. If the object previously had an	896	* object will have no environment. If the object previously had an
1245	* environment, the x and y coordinates will be updated to	897	* environment, the x and y coordinates will be updated to
1246	* the previous environment.	898	* the previous environment.
1247	* Beware: This function is called from the editor as well!	899	* Beware: This function is called from the editor as well!
1248	*/	900	*/
1249		901	void
1250	void remove_ob(object *op) {	902	object::remove ()
		903	{
1251	object *tmp,*last=NULL;	904	object *tmp, *last = 0;
1252	object *otmp;	905	object *otmp;
1253	tag_t tag;
1254	int check_walk_off;
1255	mapstruct *m;
1256	sint16 x,y;
1257
1258		906
1259	if(QUERY_FLAG(op,FLAG_REMOVED)) {	907	if (QUERY_FLAG (this, FLAG_REMOVED))
1260	dump_object(op);	908	return;
1261	LOG(llevError,"Trying to remove removed object.\n%s\n",errmsg);
1262		909
1263	/* Changed it to always dump core in this case. As has been learned
1264	* in the past, trying to recover from errors almost always
1265	* make things worse, and this is a real error here - something
1266	* that should not happen.
1267	* Yes, if this was a mission critical app, trying to do something
1268	* to recover may make sense, but that is because failure of the app
1269	* may have other disastrous problems. Cf runs out of a script
1270	* so is easily enough restarted without any real problems.
1271	* MSW 2001-07-01
1272	*/
1273	abort();
1274	}
1275	if(op->more!=NULL)
1276	remove_ob(op->more);
1277
1278	SET_FLAG(op, FLAG_REMOVED);	910	SET_FLAG (this, FLAG_REMOVED);
		911	INVOKE_OBJECT (REMOVE, this);
1279		912
		913	if (more)
		914	more->remove ();
		915
1280	/*	916	/*
1281	* In this case, the object to be removed is in someones	917	* In this case, the object to be removed is in someones
1282	* inventory.	918	* inventory.
1283	*/	919	*/
1284	if(op->env!=NULL) {	920	if (env)
1285	if(op->nrof)	921	{
		922	if (nrof)
1286	sub_weight(op->env, op->weight*op->nrof);	923	sub_weight (env, weight * nrof);
1287	else	924	else
1288	sub_weight(op->env, op->weight+op->carrying);	925	sub_weight (env, weight + carrying);
1289		926
1290	/* NO_FIX_PLAYER is set when a great many changes are being	927	/* NO_FIX_PLAYER is set when a great many changes are being
1291	* made to players inventory. If set, avoiding the call	928	* made to players inventory. If set, avoiding the call
1292	* to save cpu time.	929	* to save cpu time.
1293	*/	930	*/
1294	if ((otmp=is_player_inv(op->env))!=NULL && otmp->contr &&	931	if ((otmp = in_player ()) && otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1295	!QUERY_FLAG(otmp,FLAG_NO_FIX_PLAYER))	932	otmp->update_stats ();
1296	fix_player(otmp);
1297		933
1298	if(op->above!=NULL)	934	if (above)
1299	op->above->below=op->below;	935	above->below = below;
1300	else	936	else
1301	op->env->inv=op->below;	937	env->inv = below;
1302		938
1303	if(op->below!=NULL)	939	if (below)
1304	op->below->above=op->above;	940	below->above = above;
1305		941
1306	/* we set up values so that it could be inserted into	942	/* we set up values so that it could be inserted into
1307	* the map, but we don't actually do that - it is up	943	* the map, but we don't actually do that - it is up
1308	* to the caller to decide what we want to do.	944	* to the caller to decide what we want to do.
1309	*/
1310	op->x=op->env->x,op->y=op->env->y;
1311	op->ox=op->x,op->oy=op->y;
1312	op->map=op->env->map;
1313	op->above=NULL,op->below=NULL;
1314	op->env=NULL;
1315	return;
1316	}
1317
1318	/* If we get here, we are removing it from a map */
1319	if (op->map == NULL) return;
1320
1321	x = op->x;
1322	y = op->y;
1323	m = get_map_from_coord(op->map, &x, &y);
1324
1325	if (!m) {
1326	LOG(llevError,"remove_ob called when object was on map but appears to not be within valid coordinates? %s (%d,%d)\n",
1327	op->map->path, op->x, op->y);
1328	/* in old days, we used to set x and y to 0 and continue.
1329	* it seems if we get into this case, something is probablye
1330	* screwed up and should be fixed.
1331	*/
1332	abort();
1333	}
1334	if (op->map != m) {
1335	LOG(llevDebug,"remove_ob: Object not really on map it claimed to be on? %s != %s, %d,%d != %d,%d\n",
1336	op->map->path, m->path, op->x, op->y, x, y);
1337	}
1338
1339	/* Re did the following section of code - it looks like it had
1340	* lots of logic for things we no longer care about
1341	*/	945	*/
		946	x = env->x, y = env->y;
		947	map = env->map;
		948	above = 0, below = 0;
		949	env = 0;
		950	}
		951	else if (map)
		952	{
		953	if (type == PLAYER)
		954	{
		955	--map->players;
		956	map->touch ();
		957	}
1342		958
		959	map->dirty = true;
		960
1343	/* link the object above us */	961	/* link the object above us */
1344	if (op->above)	962	if (above)
1345	op->above->below=op->below;	963	above->below = below;
1346	else	964	else
1347	SET_MAP_TOP(m,x,y,op->below); /* we were top, set new top */	965	map->at (x, y).top = below; /* we were top, set new top */
1348		966
1349	/* Relink the object below us, if there is one */	967	/* Relink the object below us, if there is one */
1350	if(op->below) {	968	if (below)
1351	op->below->above=op->above;	969	below->above = above;
1352	} else {	970	else
		971	{
1353	/* Nothing below, which means we need to relink map object for this space	972	/* Nothing below, which means we need to relink map object for this space
1354	* use translated coordinates in case some oddness with map tiling is	973	* use translated coordinates in case some oddness with map tiling is
1355	* evident	974	* evident
1356	*/	975	*/
1357	if(GET_MAP_OB(m,x,y)!=op) {	976	if (GET_MAP_OB (map, x, y) != this)
1358	dump_object(op);	977	{
		978	char *dump = dump_object (this);
		979	LOG (llevError,
1359	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);	980	"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);
1360	dump_object(GET_MAP_OB(m,x,y));	981	free (dump);
1361	LOG(llevError,"%s\n",errmsg);	982	dump = dump_object (GET_MAP_OB (map, x, y));
1362	}	983	LOG (llevError, "%s\n", dump);
1363	SET_MAP_OB(m,x,y,op->above); /* goes on above it. */	984	free (dump);
1364	}	985	}
1365	op->above=NULL;
1366	op->below=NULL;
1367		986
		987	map->at (x, y).bot = above; /* goes on above it. */
		988	}
		989
		990	above = 0;
		991	below = 0;
		992
1368	if (op->map->in_memory == MAP_SAVING)	993	if (map->in_memory == MAP_SAVING)
1369	return;	994	return;
1370		995
1371	tag = op->count;	996	int check_walk_off = !flag [FLAG_NO_APPLY];
1372	check_walk_off = ! QUERY_FLAG (op, FLAG_NO_APPLY);	997
1373	for(tmp=GET_MAP_OB(m,x,y);tmp!=NULL;tmp=tmp->above) {	998	for (tmp = map->at (x, y).bot; tmp; tmp = tmp->above)
		999	{
1374	/* No point updating the players look faces if he is the object	1000	/* No point updating the players look faces if he is the object
1375	* being removed.	1001	* being removed.
1376	*/	1002	*/
1377		1003
1378	if(tmp->type==PLAYER && tmp!=op) {	1004	if (tmp->type == PLAYER && tmp != this)
		1005	{
1379	/* If a container that the player is currently using somehow gets	1006	/* If a container that the player is currently using somehow gets
1380	* removed (most likely destroyed), update the player view	1007	* removed (most likely destroyed), update the player view
1381	* appropriately.	1008	* appropriately.
1382	*/	1009	*/
1383	if (tmp->container==op) {	1010	if (tmp->container == this)
1384	CLEAR_FLAG(op, FLAG_APPLIED);	1011	{
1385	tmp->container=NULL;	1012	flag [FLAG_APPLIED] = 0;
1386	}	1013	tmp->container = 0;
1387	tmp->contr->socket.update_look=1;	1014	}
1388	}	1015
		1016	if (tmp->contr->ns)
		1017	tmp->contr->ns->floorbox_update ();
		1018	}
		1019
1389	/* See if player moving off should effect something */	1020	/* See if object moving off should effect something */
1390	if (check_walk_off && ((op->move_type & tmp->move_off) &&	1021	if (check_walk_off
		1022	&& ((move_type & tmp->move_off)
1391	(op->move_type & ~tmp->move_off & ~tmp->move_block)==0)) {	1023	&& (move_type & ~tmp->move_off & ~tmp->move_block) == 0))
		1024	{
		1025	move_apply (tmp, this, 0);
1392		1026
1393	move_apply(tmp, op, NULL);	1027	if (destroyed ())
1394	if (was_destroyed (op, tag)) {	1028	LOG (llevError, "BUG: remove_ob(): name %s, destroyed leaving object\n", tmp->debug_desc ());
1395	LOG (llevError, "BUG: remove_ob(): name %s, archname %s destroyed "	1029	}
1396	"leaving object\n", tmp->name, tmp->arch->name);
1397	}
1398	}
1399		1030
1400	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */	1031	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */
1401		1032	//TODO: why is this horrible hacka fix? get rid of this code=bug! (schmorp)
1402	if(tmp->above == tmp)	1033	if (tmp->above == tmp)
1403	tmp->above = NULL;	1034	tmp->above = 0;
1404	last=tmp;	1035
1405	}	1036	last = tmp;
		1037	}
		1038
1406	/* last == NULL of there are no objects on this space */	1039	/* last == NULL if there are no objects on this space */
1407	if (last==NULL) {	1040	//TODO: this makes little sense, why only update the topmost object?
1408	/* set P_NEED_UPDATE, otherwise update_position will complain. In theory,	1041	if (!last)
1409	* we could preserve the flags (GET_MAP_FLAGS), but update_position figures	1042	map->at (x, y).flags_ = 0;
1410	* those out anyways, and if there are any flags set right now, they won't
1411	* be correct anyways.
1412	*/
1413	SET_MAP_FLAGS(op->map, op->x, op->y, P_NEED_UPDATE);
1414	update_position(op->map, op->x, op->y);
1415	}
1416	else	1043	else
1417	update_object(last, UP_OBJ_REMOVE);	1044	update_object (last, UP_OBJ_REMOVE);
1418		1045
1419	if(QUERY_FLAG(op,FLAG_BLOCKSVIEW)|| (op->glow_radius != 0))	1046	if (flag [FLAG_BLOCKSVIEW] || glow_radius)
1420	update_all_los(op->map, op->x, op->y);	1047	update_all_los (map, x, y);
1421		1048	}
1422	}	1049	}
1423		1050
1424	/*	1051	/*
1425	* merge_ob(op,top):	1052	* merge_ob(op,top):
1426	*	1053	*
1427	* This function goes through all objects below and including top, and	1054	* This function goes through all objects below and including top, and
1428	* merges op to the first matching object.	1055	* merges op to the first matching object.
1429	* If top is NULL, it is calculated.	1056	* If top is NULL, it is calculated.
1430	* Returns pointer to object if it succeded in the merge, otherwise NULL	1057	* Returns pointer to object if it succeded in the merge, otherwise NULL
1431	*/	1058	*/
1432		1059	object *
1433	object *merge_ob(object *op, object *top) {	1060	merge_ob (object *op, object *top)
		1061	{
1434	if(!op->nrof)	1062	if (!op->nrof)
1435	return 0;	1063	return 0;
1436	if(top==NULL)	1064
		1065	if (top)
1437	for(top=op;top!=NULL&&top->above!=NULL;top=top->above);	1066	for (top = op; top && top->above; top = top->above)
		1067	;
		1068
1438	for(;top!=NULL;top=top->below) {	1069	for (; top; top = top->below)
		1070	{
1439	if(top==op)	1071	if (top == op)
1440	continue;	1072	continue;
1441	if (CAN_MERGE(op,top))	1073
1442	{	1074	if (object::can_merge (op, top))
		1075	{
1443	top->nrof+=op->nrof;	1076	top->nrof += op->nrof;
		1077
1444	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/	1078	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/
1445	op->weight = 0; /* Don't want any adjustements now */	1079	op->weight = 0; /* Don't want any adjustements now */
1446	remove_ob(op);	1080	op->destroy ();
1447	free_object(op);
1448	return top;	1081	return top;
1449	}	1082	}
1450	}	1083	}
		1084
1451	return NULL;	1085	return 0;
1452	}	1086	}
1453		1087
1454	/*	1088	/*
1455	* same as insert_ob_in_map except it handle separate coordinates and do a clean	1089	* same as insert_ob_in_map except it handle separate coordinates and do a clean
1456	* job preparing multi-part monsters	1090	* job preparing multi-part monsters
1457	*/	1091	*/
		1092	object *
1458	object *insert_ob_in_map_at(object *op, mapstruct *m, object *originator, int flag, int x, int y){	1093	insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)
1459	object* tmp;	1094	{
1460	if (op->head)	1095	for (object *tmp = op->head_ (); tmp; tmp = tmp->more)
1461	op=op->head;	1096	{
1462	for (tmp=op;tmp;tmp=tmp->more){
1463	tmp->x=x+tmp->arch->clone.x;	1097	tmp->x = x + tmp->arch->clone.x;
1464	tmp->y=y+tmp->arch->clone.y;	1098	tmp->y = y + tmp->arch->clone.y;
1465	}	1099	}
		1100
1466	return insert_ob_in_map (op, m, originator, flag);	1101	return insert_ob_in_map (op, m, originator, flag);
1467	}	1102	}
1468		1103
1469	/*	1104	/*
1470	* insert_ob_in_map (op, map, originator, flag):	1105	* insert_ob_in_map (op, map, originator, flag):
1471	* This function inserts the object in the two-way linked list	1106	* This function inserts the object in the two-way linked list
…		…
1484	* Return value:	1119	* Return value:
1485	* new object if 'op' was merged with other object	1120	* new object if 'op' was merged with other object
1486	* NULL if 'op' was destroyed	1121	* NULL if 'op' was destroyed
1487	* just 'op' otherwise	1122	* just 'op' otherwise
1488	*/	1123	*/
1489		1124	object *
1490	object *insert_ob_in_map (object *op, mapstruct *m, object *originator, int flag)	1125	insert_ob_in_map (object *op, maptile *m, object *originator, int flag)
1491	{	1126	{
1492	object *tmp, *top, *floor=NULL;	1127	object *tmp, *top, *floor = NULL;
1493	sint16 x,y;	1128	sint16 x, y;
1494		1129
1495	if (QUERY_FLAG (op, FLAG_FREED)) {	1130	if (QUERY_FLAG (op, FLAG_FREED))
		1131	{
1496	LOG (llevError, "Trying to insert freed object!\n");	1132	LOG (llevError, "Trying to insert freed object!\n");
1497	return NULL;	1133	return NULL;
		1134	}
		1135
		1136	if (!m)
1498	}	1137	{
1499	if(m==NULL) {	1138	char *dump = dump_object (op);
1500	dump_object(op);
1501	LOG(llevError,"Trying to insert in null-map!\n%s\n",errmsg);	1139	LOG (llevError, "Trying to insert in null-map!\n%s\n", dump);
1502	return op;	1140	free (dump);
		1141	return op;
1503	}	1142	}
		1143
1504	if(out_of_map(m,op->x,op->y)) {	1144	if (out_of_map (m, op->x, op->y))
1505	dump_object(op);	1145	{
		1146	char *dump = dump_object (op);
1506	LOG(llevError,"Trying to insert object outside the map.\n%s\n", errmsg);	1147	LOG (llevError, "Trying to insert object outside the map.\n%s\n", dump);
1507	#ifdef MANY_CORES	1148	#ifdef MANY_CORES
1508	/* Better to catch this here, as otherwise the next use of this object	1149	/* Better to catch this here, as otherwise the next use of this object
1509	* is likely to cause a crash. Better to find out where it is getting	1150	* is likely to cause a crash. Better to find out where it is getting
1510	* improperly inserted.	1151	* improperly inserted.
1511	*/	1152	*/
1512	abort();	1153	abort ();
1513	#endif	1154	#endif
1514	return op;	1155	free (dump);
		1156	return op;
1515	}	1157	}
		1158
1516	if(!QUERY_FLAG(op,FLAG_REMOVED)) {	1159	if (!QUERY_FLAG (op, FLAG_REMOVED))
1517	dump_object(op);	1160	{
		1161	char *dump = dump_object (op);
1518	LOG(llevError,"Trying to insert (map) inserted object.\n%s\n", errmsg);	1162	LOG (llevError, "Trying to insert (map) inserted object.\n%s\n", dump);
1519	return op;	1163	free (dump);
		1164	return op;
		1165	}
		1166
		1167	if (op->more)
1520	}	1168	{
1521	if(op->more!=NULL) {
1522	/* The part may be on a different map. */	1169	/* The part may be on a different map. */
1523		1170
1524	object *more = op->more;	1171	object *more = op->more;
1525		1172
1526	/* We really need the caller to normalize coordinates - if	1173	/* We really need the caller to normalise coordinates - if
1527	* we set the map, that doesn't work if the location is within	1174	* we set the map, that doesn't work if the location is within
1528	* a map and this is straddling an edge. So only if coordinate	1175	* a map and this is straddling an edge. So only if coordinate
1529	* is clear wrong do we normalize it.	1176	* is clear wrong do we normalise it.
1530	*/	1177	*/
1531	if (OUT_OF_REAL_MAP(more->map, more->x, more->y)) {	1178	if (OUT_OF_REAL_MAP (more->map, more->x, more->y))
1532	/* Debugging information so you can see the last coordinates this object had */
1533	more->ox = more->x;
1534	more->oy = more->y;
1535	more->map = get_map_from_coord(m, &more->x, &more->y);	1179	more->map = get_map_from_coord (m, &more->x, &more->y);
1536	} else if (!more->map) {	1180	else if (!more->map)
		1181	{
1537	/* For backwards compatibility - when not dealing with tiled maps,	1182	/* For backwards compatibility - when not dealing with tiled maps,
1538	* more->map should always point to the parent.	1183	* more->map should always point to the parent.
1539	*/	1184	*/
1540	more->map = m;	1185	more->map = m;
1541	}	1186	}
1542		1187
1543	if (insert_ob_in_map(more, more->map, originator, flag) == NULL) {	1188	if (insert_ob_in_map (more, more->map, originator, flag) == NULL)
		1189	{
1544	if ( ! op->head)	1190	if (!op->head)
1545	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");	1191	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");
1546	return NULL;	1192
1547	}	1193	return 0;
		1194	}
1548	}	1195	}
		1196
1549	CLEAR_FLAG(op,FLAG_REMOVED);	1197	CLEAR_FLAG (op, FLAG_REMOVED);
1550		1198
1551	/* Debugging information so you can see the last coordinates this object had */
1552	op->ox=op->x;
1553	op->oy=op->y;
1554
1555	/* Ideally, the caller figures this out. However, it complicates a lot	1199	/* Ideally, the caller figures this out. However, it complicates a lot
1556	* of areas of callers (eg, anything that uses find_free_spot would now	1200	* of areas of callers (eg, anything that uses find_free_spot would now
1557	* need extra work	1201	* need extra work
1558	*/	1202	*/
1559	op->map=get_map_from_coord(m, &op->x, &op->y);	1203	op->map = get_map_from_coord (m, &op->x, &op->y);
1560	x = op->x;	1204	x = op->x;
1561	y = op->y;	1205	y = op->y;
1562		1206
1563	/* this has to be done after we translate the coordinates.	1207	/* this has to be done after we translate the coordinates.
1564	*/	1208	*/
1565	if(op->nrof && !(flag & INS_NO_MERGE)) {	1209	if (op->nrof && !(flag & INS_NO_MERGE))
1566	for(tmp=GET_MAP_OB(op->map,x,y);tmp!=NULL;tmp=tmp->above)	1210	for (tmp = GET_MAP_OB (op->map, x, y); tmp; tmp = tmp->above)
1567	if (CAN_MERGE(op,tmp)) {	1211	if (object::can_merge (op, tmp))
1568	op->nrof+=tmp->nrof;	1212	{
1569	remove_ob(tmp);	1213	op->nrof += tmp->nrof;
1570	free_object(tmp);	1214	tmp->destroy ();
1571	}	1215	}
1572	}
1573		1216
1574	CLEAR_FLAG(op,FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */	1217	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */
1575	CLEAR_FLAG(op, FLAG_INV_LOCKED);	1218	CLEAR_FLAG (op, FLAG_INV_LOCKED);
		1219
1576	if (!QUERY_FLAG(op, FLAG_ALIVE))	1220	if (!QUERY_FLAG (op, FLAG_ALIVE))
1577	CLEAR_FLAG(op, FLAG_NO_STEAL);	1221	CLEAR_FLAG (op, FLAG_NO_STEAL);
1578		1222
1579	if (flag & INS_BELOW_ORIGINATOR) {	1223	if (flag & INS_BELOW_ORIGINATOR)
		1224	{
1580	if (originator->map != op->map || originator->x != op->x ||	1225	if (originator->map != op->map || originator->x != op->x || originator->y != op->y)
1581	originator->y != op->y) {	1226	{
1582	LOG(llevError,"insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");	1227	LOG (llevError, "insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");
1583	abort();	1228	abort ();
1584	}	1229	}
		1230
1585	op->above = originator;	1231	op->above = originator;
1586	op->below = originator->below;	1232	op->below = originator->below;
1587	if (op->below) op->below->above = op;	1233
1588	else SET_MAP_OB(op->map, op->x, op->y, op);	1234	if (op->below)
		1235	op->below->above = op;
		1236	else
		1237	op->ms ().bot = op;
		1238
1589	/* since *below* originator, no need to update top */	1239	/* since *below* originator, no need to update top */
1590	originator->below = op;	1240	originator->below = op;
1591	} else {	1241	}
		1242	else
		1243	{
1592	/* If there are other objects, then */	1244	/* If there are other objects, then */
1593	if((! (flag & INS_MAP_LOAD)) && ((top=GET_MAP_OB(op->map,op->x,op->y))!=NULL)) {	1245	if ((!(flag & INS_MAP_LOAD)) && ((top = GET_MAP_OB (op->map, op->x, op->y)) != NULL))
1594	object *last=NULL;	1246	{
1595	/*	1247	object *last = 0;
		1248
		1249	/*
1596	* If there are multiple objects on this space, we do some trickier handling.	1250	* If there are multiple objects on this space, we do some trickier handling.
1597	* We've already dealt with merging if appropriate.	1251	* We've already dealt with merging if appropriate.
1598	* Generally, we want to put the new object on top. But if	1252	* Generally, we want to put the new object on top. But if
1599	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last	1253	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last
1600	* floor, we want to insert above that and no further.	1254	* floor, we want to insert above that and no further.
1601	* Also, if there are spell objects on this space, we stop processing	1255	* Also, if there are spell objects on this space, we stop processing
1602	* once we get to them. This reduces the need to traverse over all of	1256	* once we get to them. This reduces the need to traverse over all of
1603	* them when adding another one - this saves quite a bit of cpu time	1257	* them when adding another one - this saves quite a bit of cpu time
1604	* when lots of spells are cast in one area. Currently, it is presumed	1258	* when lots of spells are cast in one area. Currently, it is presumed
1605	* that flying non pickable objects are spell objects.	1259	* that flying non pickable objects are spell objects.
1606	*/	1260	*/
		1261	while (top)
		1262	{
		1263	if (QUERY_FLAG (top, FLAG_IS_FLOOR) || QUERY_FLAG (top, FLAG_OVERLAY_FLOOR))
		1264	floor = top;
1607		1265
1608	while (top != NULL) {	1266	if (QUERY_FLAG (top, FLAG_NO_PICK) && (top->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (top, FLAG_IS_FLOOR))
1609	if (QUERY_FLAG(top, FLAG_IS_FLOOR) ||
1610	QUERY_FLAG(top, FLAG_OVERLAY_FLOOR)) floor = top;
1611	if (QUERY_FLAG(top, FLAG_NO_PICK)
1612	&& (top->move_type & (MOVE_FLY_LOW |MOVE_FLY_HIGH))
1613	&& !QUERY_FLAG(top, FLAG_IS_FLOOR))
1614	{	1267	{
1615	/* We insert above top, so we want this object below this */	1268	/* We insert above top, so we want this object below this */
1616	top=top->below;	1269	top = top->below;
1617	break;	1270	break;
1618	}	1271	}
1619	last = top;	1272
1620	top = top->above;	1273	last = top;
1621	}	1274	top = top->above;
		1275	}
		1276
1622	/* Don't want top to be NULL, so set it to the last valid object */	1277	/* Don't want top to be NULL, so set it to the last valid object */
1623	top = last;	1278	top = last;
1624		1279
1625	/* We let update_position deal with figuring out what the space	1280	/* We let update_position deal with figuring out what the space
1626	* looks like instead of lots of conditions here.	1281	* looks like instead of lots of conditions here.
1627	* makes things faster, and effectively the same result.	1282	* makes things faster, and effectively the same result.
1628	*/	1283	*/
1629		1284
1630	/* Have object 'fall below' other objects that block view.	1285	/* Have object 'fall below' other objects that block view.
1631	* Unless those objects are exits, type 66	1286	* Unless those objects are exits, type 66
1632	* If INS_ON_TOP is used, don't do this processing	1287	* If INS_ON_TOP is used, don't do this processing
1633	* Need to find the object that in fact blocks view, otherwise	1288	* Need to find the object that in fact blocks view, otherwise
1634	* stacking is a bit odd.	1289	* stacking is a bit odd.
1635	*/	1290	*/
1636	if (!(flag & INS_ON_TOP) &&	1291	if (!(flag & INS_ON_TOP) &&
1637	(get_map_flags(op->map, NULL, op->x, op->y, NULL, NULL) & P_BLOCKSVIEW) &&	1292	(get_map_flags (op->map, 0, op->x, op->y, 0, 0) & P_BLOCKSVIEW) && (op->face && !op->face->visibility))
1638	(op->face && !op->face->visibility)) {	1293	{
1639	for (last=top; last != floor; last=last->below)	1294	for (last = top; last != floor; last = last->below)
1640	if (QUERY_FLAG(last, FLAG_BLOCKSVIEW)&&(last->type != EXIT)) break;	1295	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))
		1296	break;
1641	/* Check to see if we found the object that blocks view,	1297	/* Check to see if we found the object that blocks view,
1642	* and make sure we have a below pointer for it so that	1298	* and make sure we have a below pointer for it so that
1643	* we can get inserted below this one, which requires we	1299	* we can get inserted below this one, which requires we
1644	* set top to the object below us.	1300	* set top to the object below us.
1645	*/	1301	*/
1646	if (last && last->below && last != floor) top=last->below;	1302	if (last && last->below && last != floor)
1647	}	1303	top = last->below;
1648	} /* If objects on this space */	1304	}
		1305	} /* If objects on this space */
		1306
1649	if (flag & INS_MAP_LOAD)	1307	if (flag & INS_MAP_LOAD)
1650	top = GET_MAP_TOP(op->map,op->x,op->y);	1308	top = GET_MAP_TOP (op->map, op->x, op->y);
		1309
1651	if (flag & INS_ABOVE_FLOOR_ONLY) top = floor;	1310	if (flag & INS_ABOVE_FLOOR_ONLY)
		1311	top = floor;
1652		1312
1653	/* Top is the object that our object (op) is going to get inserted above.	1313	/* Top is the object that our object (op) is going to get inserted above.
1654	*/	1314	*/
1655		1315
1656	/* First object on this space */	1316	/* First object on this space */
1657	if (!top) {	1317	if (!top)
		1318	{
1658	op->above = GET_MAP_OB(op->map, op->x, op->y);	1319	op->above = GET_MAP_OB (op->map, op->x, op->y);
1659	if (op->above) op->above->below = op;	1320
1660	op->below = NULL;	1321	if (op->above)
1661	SET_MAP_OB(op->map, op->x, op->y, op);	1322	op->above->below = op;
1662	} else { /* get inserted into the stack above top */	1323
		1324	op->below = 0;
		1325	op->ms ().bot = op;
		1326	}
		1327	else
		1328	{ /* get inserted into the stack above top */
1663	op->above = top->above;	1329	op->above = top->above;
1664	if (op->above) op->above->below = op;	1330
		1331	if (op->above)
		1332	op->above->below = op;
		1333
1665	op->below = top;	1334	op->below = top;
1666	top->above = op;	1335	top->above = op;
1667	}	1336	}
1668	if (op->above==NULL)	1337
1669	SET_MAP_TOP(op->map,op->x, op->y, op);	1338	if (!op->above)
		1339	op->ms ().top = op;
1670	} /* else not INS_BELOW_ORIGINATOR */	1340	} /* else not INS_BELOW_ORIGINATOR */
1671		1341
1672	if(op->type==PLAYER)	1342	if (op->type == PLAYER)
		1343	{
1673	op->contr->do_los=1;	1344	op->contr->do_los = 1;
		1345	++op->map->players;
		1346	op->map->touch ();
		1347	}
1674		1348
		1349	op->map->dirty = true;
		1350
1675	/* If we have a floor, we know the player, if any, will be above	1351	/* If we have a floor, we know the player, if any, will be above
1676	* it, so save a few ticks and start from there.	1352	* it, so save a few ticks and start from there.
1677	*/	1353	*/
1678	if (!(flag & INS_MAP_LOAD))	1354	if (!(flag & INS_MAP_LOAD))
1679	for(tmp=floor?floor:GET_MAP_OB(op->map,op->x,op->y);tmp!=NULL;tmp=tmp->above) {	1355	if (object *pl = op->ms ().player ())
1680	if (tmp->type == PLAYER)	1356	if (pl->contr->ns)
1681	tmp->contr->socket.update_look=1;	1357	pl->contr->ns->floorbox_update ();
1682	}
1683		1358
1684	/* If this object glows, it may affect lighting conditions that are	1359	/* If this object glows, it may affect lighting conditions that are
1685	* visible to others on this map. But update_all_los is really	1360	* visible to others on this map. But update_all_los is really
1686	* an inefficient way to do this, as it means los for all players	1361	* an inefficient way to do this, as it means los for all players
1687	* on the map will get recalculated. The players could very well	1362	* on the map will get recalculated. The players could very well
1688	* be far away from this change and not affected in any way -	1363	* be far away from this change and not affected in any way -
1689	* this should get redone to only look for players within range,	1364	* this should get redone to only look for players within range,
1690	* or just updating the P_NEED_UPDATE for spaces within this area	1365	* or just updating the P_UPTODATE for spaces within this area
1691	* of effect may be sufficient.	1366	* of effect may be sufficient.
1692	*/	1367	*/
1693	if(MAP_DARKNESS(op->map) && (op->glow_radius != 0))	1368	if (op->map->darkness && (op->glow_radius != 0))
1694	update_all_los(op->map, op->x, op->y);	1369	update_all_los (op->map, op->x, op->y);
1695		1370
1696
1697	/* updates flags (blocked, alive, no magic, etc) for this map space */	1371	/* updates flags (blocked, alive, no magic, etc) for this map space */
1698	update_object(op,UP_OBJ_INSERT);	1372	update_object (op, UP_OBJ_INSERT);
1699		1373
		1374	INVOKE_OBJECT (INSERT, op);
1700		1375
1701	/* Don't know if moving this to the end will break anything. However,	1376	/* Don't know if moving this to the end will break anything. However,
1702	* we want to have update_look set above before calling this.	1377	* we want to have floorbox_update called before calling this.
1703	*	1378	*
1704	* check_move_on() must be after this because code called from	1379	* check_move_on() must be after this because code called from
1705	* check_move_on() depends on correct map flags (so functions like	1380	* check_move_on() depends on correct map flags (so functions like
1706	* blocked() and wall() work properly), and these flags are updated by	1381	* blocked() and wall() work properly), and these flags are updated by
1707	* update_object().	1382	* update_object().
1708	*/	1383	*/
1709		1384
1710	/* if this is not the head or flag has been passed, don't check walk on status */	1385	/* if this is not the head or flag has been passed, don't check walk on status */
1711
1712	if (!(flag & INS_NO_WALK_ON) && !op->head) {	1386	if (!(flag & INS_NO_WALK_ON) && !op->head)
		1387	{
1713	if (check_move_on(op, originator))	1388	if (check_move_on (op, originator))
1714	return NULL;	1389	return 0;
1715		1390
1716	/* If we are a multi part object, lets work our way through the check	1391	/* If we are a multi part object, lets work our way through the check
1717	* walk on's.	1392	* walk on's.
1718	*/	1393	*/
1719	for (tmp=op->more; tmp!=NULL; tmp=tmp->more)	1394	for (tmp = op->more; tmp != NULL; tmp = tmp->more)
1720	if (check_move_on (tmp, originator))	1395	if (check_move_on (tmp, originator))
1721	return NULL;	1396	return 0;
1722	}	1397	}
		1398
1723	return op;	1399	return op;
1724	}	1400	}
1725		1401
1726	/* this function inserts an object in the map, but if it	1402	/* this function inserts an object in the map, but if it
1727	* finds an object of its own type, it'll remove that one first.	1403	* finds an object of its own type, it'll remove that one first.
1728	* op is the object to insert it under: supplies x and the map.	1404	* op is the object to insert it under: supplies x and the map.
1729	*/	1405	*/
		1406	void
1730	void replace_insert_ob_in_map(const char *arch_string, object *op) {	1407	replace_insert_ob_in_map (const char *arch_string, object *op)
1731	object *tmp;	1408	{
1732	object *tmp1;	1409	object *tmp, *tmp1;
1733		1410
1734	/* first search for itself and remove any old instances */	1411	/* first search for itself and remove any old instances */
1735		1412
1736	for(tmp=GET_MAP_OB(op->map,op->x,op->y); tmp!=NULL; tmp=tmp->above) {	1413	for (tmp = op->ms ().bot; tmp; tmp = tmp->above)
1737	if(!strcmp(tmp->arch->name,arch_string)) /* same archetype */ {	1414	if (!strcmp (tmp->arch->name, arch_string)) /* same archetype */
1738	remove_ob(tmp);	1415	tmp->destroy ();
1739	free_object(tmp);
1740	}
1741	}
1742		1416
1743	tmp1=arch_to_object(find_archetype(arch_string));	1417	tmp1 = arch_to_object (archetype::find (arch_string));
1744		1418
1745		1419	tmp1->x = op->x;
1746	tmp1->x = op->x; tmp1->y = op->y;	1420	tmp1->y = op->y;
1747	insert_ob_in_map(tmp1,op->map,op,0);	1421	insert_ob_in_map (tmp1, op->map, op, 0);
1748	}	1422	}
		1423
		1424	object *
		1425	object::insert_at (object *where, object *originator, int flags)
		1426	{
		1427	where->map->insert (this, where->x, where->y, originator, flags);
		1428	}
1749		1429
1750	/*	1430	/*
1751	* get_split_ob(ob,nr) splits up ob into two parts. The part which	1431	* get_split_ob(ob,nr) splits up ob into two parts. The part which
1752	* is returned contains nr objects, and the remaining parts contains	1432	* is returned contains nr objects, and the remaining parts contains
1753	* the rest (or is removed and freed if that number is 0).	1433	* the rest (or is removed and freed if that number is 0).
1754	* On failure, NULL is returned, and the reason put into the	1434	* On failure, NULL is returned, and the reason put into the
1755	* global static errmsg array.	1435	* global static errmsg array.
1756	*/	1436	*/
1757		1437	object *
1758	object *get_split_ob(object *orig_ob, uint32 nr) {	1438	get_split_ob (object *orig_ob, uint32 nr)
		1439	{
1759	object *newob;	1440	object *newob;
1760	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);	1441	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);
1761		1442
1762	if(orig_ob->nrof<nr) {	1443	if (orig_ob->nrof < nr)
1763	sprintf(errmsg,"There are only %d %ss.",
1764	orig_ob->nrof?orig_ob->nrof:1, orig_ob->name);
1765	return NULL;
1766	}	1444	{
		1445	sprintf (errmsg, "There are only %d %ss.", orig_ob->nrof ? orig_ob->nrof : 1, &orig_ob->name);
		1446	return NULL;
		1447	}
		1448
1767	newob = object_create_clone(orig_ob);	1449	newob = object_create_clone (orig_ob);
		1450
1768	if((orig_ob->nrof-=nr)<1) {	1451	if ((orig_ob->nrof -= nr) < 1)
1769	if ( ! is_removed)	1452	orig_ob->destroy (1);
1770	remove_ob(orig_ob);
1771	free_object2(orig_ob, 1);
1772	}
1773	else if ( ! is_removed) {	1453	else if (!is_removed)
		1454	{
1774	if(orig_ob->env!=NULL)	1455	if (orig_ob->env != NULL)
1775	sub_weight (orig_ob->env,orig_ob->weight*nr);	1456	sub_weight (orig_ob->env, orig_ob->weight * nr);
1776	if (orig_ob->env == NULL && orig_ob->map->in_memory!=MAP_IN_MEMORY) {	1457	if (orig_ob->env == NULL && orig_ob->map->in_memory != MAP_IN_MEMORY)
		1458	{
1777	strcpy(errmsg, "Tried to split object whose map is not in memory.");	1459	strcpy (errmsg, "Tried to split object whose map is not in memory.");
1778	LOG(llevDebug,
1779	"Error, Tried to split object whose map is not in memory.\n");	1460	LOG (llevDebug, "Error, Tried to split object whose map is not in memory.\n");
1780	return NULL;	1461	return NULL;
1781	}	1462	}
1782	}	1463	}
		1464
1783	newob->nrof=nr;	1465	newob->nrof = nr;
1784		1466
1785	return newob;	1467	return newob;
1786	}	1468	}
1787		1469
1788	/*	1470	/*
1789	* decrease_ob_nr(object, number) decreases a specified number from	1471	* decrease_ob_nr(object, number) decreases a specified number from
1790	* the amount of an object. If the amount reaches 0, the object	1472	* the amount of an object. If the amount reaches 0, the object
1791	* is subsequently removed and freed.	1473	* is subsequently removed and freed.
1792	*	1474	*
1793	* Return value: 'op' if something is left, NULL if the amount reached 0	1475	* Return value: 'op' if something is left, NULL if the amount reached 0
1794	*/	1476	*/
1795		1477
		1478	object *
1796	object *decrease_ob_nr (object *op, uint32 i)	1479	decrease_ob_nr (object *op, uint32 i)
1797	{	1480	{
1798	object *tmp;	1481	object *tmp;
1799	player *pl;
1800		1482
1801	if (i == 0) /* objects with op->nrof require this check */	1483	if (i == 0) /* objects with op->nrof require this check */
1802	return op;	1484	return op;
1803		1485
1804	if (i > op->nrof)	1486	if (i > op->nrof)
1805	i = op->nrof;	1487	i = op->nrof;
1806		1488
1807	if (QUERY_FLAG (op, FLAG_REMOVED))	1489	if (QUERY_FLAG (op, FLAG_REMOVED))
		1490	op->nrof -= i;
		1491	else if (op->env)
		1492	{
		1493	/* is this object in the players inventory, or sub container
		1494	* therein?
		1495	*/
		1496	tmp = op->in_player ();
		1497	/* nope. Is this a container the player has opened?
		1498	* If so, set tmp to that player.
		1499	* IMO, searching through all the players will mostly
		1500	* likely be quicker than following op->env to the map,
		1501	* and then searching the map for a player.
		1502	*/
		1503	if (!tmp)
		1504	for_all_players (pl)
		1505	if (pl->ob->container == op->env)
		1506	{
		1507	tmp = pl->ob;
		1508	break;
		1509	}
		1510
		1511	if (i < op->nrof)
		1512	{
		1513	sub_weight (op->env, op->weight * i);
		1514	op->nrof -= i;
		1515	if (tmp)
		1516	esrv_send_item (tmp, op);
		1517	}
		1518	else
		1519	{
		1520	op->remove ();
		1521	op->nrof = 0;
		1522	if (tmp)
		1523	esrv_del_item (tmp->contr, op->count);
		1524	}
1808	{	1525	}
		1526	else
		1527	{
		1528	object *above = op->above;
		1529
		1530	if (i < op->nrof)
1809	op->nrof -= i;	1531	op->nrof -= i;
1810	}	1532	else
1811	else if (op->env != NULL)	1533	{
1812	{	1534	op->remove ();
1813	/* is this object in the players inventory, or sub container
1814	* therein?
1815	*/
1816	tmp = is_player_inv (op->env);
1817	/* nope. Is this a container the player has opened?
1818	* If so, set tmp to that player.
1819	* IMO, searching through all the players will mostly
1820	* likely be quicker than following op->env to the map,
1821	* and then searching the map for a player.
1822	*/
1823	if (!tmp) {
1824	for (pl=first_player; pl; pl=pl->next)
1825	if (pl->ob->container == op->env) break;
1826	if (pl) tmp=pl->ob;
1827	else tmp=NULL;
1828	}
1829
1830	if (i < op->nrof) {
1831	sub_weight (op->env, op->weight * i);
1832	op->nrof -= i;	1535	op->nrof = 0;
		1536	}
		1537
		1538	/* Since we just removed op, op->above is null */
		1539	for (tmp = above; tmp; tmp = tmp->above)
		1540	if (tmp->type == PLAYER)
		1541	{
1833	if (tmp) {	1542	if (op->nrof)
1834	esrv_send_item(tmp, op);	1543	esrv_send_item (tmp, op);
1835	}	1544	else
1836	} else {
1837	remove_ob (op);
1838	op->nrof = 0;
1839	if (tmp) {
1840	esrv_del_item(tmp->contr, op->count);	1545	esrv_del_item (tmp->contr, op->count);
1841	}	1546	}
1842	}
1843	}
1844	else
1845	{	1547	}
1846	object *above = op->above;
1847		1548
1848	if (i < op->nrof) {
1849	op->nrof -= i;
1850	} else {
1851	remove_ob (op);
1852	op->nrof = 0;
1853	}
1854	/* Since we just removed op, op->above is null */
1855	for (tmp = above; tmp != NULL; tmp = tmp->above)
1856	if (tmp->type == PLAYER) {
1857	if (op->nrof)
1858	esrv_send_item(tmp, op);
1859	else
1860	esrv_del_item(tmp->contr, op->count);
1861	}
1862	}
1863
1864	if (op->nrof) {	1549	if (op->nrof)
1865	return op;	1550	return op;
1866	} else {	1551	else
1867	free_object (op);	1552	{
		1553	op->destroy ();
1868	return NULL;	1554	return 0;
1869	}	1555	}
1870	}	1556	}
1871		1557
1872	/*	1558	/*
1873	* add_weight(object, weight) adds the specified weight to an object,	1559	* add_weight(object, weight) adds the specified weight to an object,
1874	* and also updates how much the environment(s) is/are carrying.	1560	* and also updates how much the environment(s) is/are carrying.
1875	*/	1561	*/
1876		1562
		1563	void
1877	void add_weight (object *op, signed long weight) {	1564	add_weight (object *op, signed long weight)
		1565	{
1878	while (op!=NULL) {	1566	while (op != NULL)
		1567	{
1879	if (op->type == CONTAINER) {	1568	if (op->type == CONTAINER)
1880	weight=(signed long)(weight*(100-op->stats.Str)/100);	1569	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1881	}	1570
1882	op->carrying+=weight;	1571	op->carrying += weight;
1883	op=op->env;	1572	op = op->env;
1884	}	1573	}
1885	}	1574	}
1886		1575
		1576	object *
		1577	insert_ob_in_ob (object *op, object *where)
		1578	{
		1579	if (!where)
		1580	{
		1581	char *dump = dump_object (op);
		1582	LOG (llevError, "Trying to put object in NULL.\n%s\n", dump);
		1583	free (dump);
		1584	return op;
		1585	}
		1586
		1587	if (where->head)
		1588	{
		1589	LOG (llevDebug, "Warning: Tried to insert object into wrong part of multipart object.\n");
		1590	where = where->head;
		1591	}
		1592
		1593	return where->insert (op);
		1594	}
		1595
1887	/*	1596	/*
1888	* insert_ob_in_ob(op,environment):	1597	* env->insert (op)
1889	* This function inserts the object op in the linked list	1598	* This function inserts the object op in the linked list
1890	* inside the object environment.	1599	* inside the object environment.
1891	*	1600	*
1892	* Eneq(@csd.uu.se): Altered insert_ob_in_ob to make things picked up enter
1893	* the inventory at the last position or next to other objects of the same
1894	* type.
1895	* Frank: Now sorted by type, archetype and magic!
1896	*
1897	* The function returns now pointer to inserted item, and return value can	1601	* The function returns now pointer to inserted item, and return value can
1898	* be != op, if items are merged. -Tero	1602	* be != op, if items are merged. -Tero
1899	*/	1603	*/
1900		1604
1901	object *insert_ob_in_ob(object *op,object *where) {	1605	object *
		1606	object::insert (object *op)
		1607	{
1902	object *tmp, *otmp;	1608	object *tmp, *otmp;
1903		1609
1904	if(!QUERY_FLAG(op,FLAG_REMOVED)) {	1610	if (!QUERY_FLAG (op, FLAG_REMOVED))
1905	dump_object(op);	1611	op->remove ();
1906	LOG(llevError,"Trying to insert (ob) inserted object.\n%s\n", errmsg);	1612
1907	return op;
1908	}
1909	if(where==NULL) {
1910	dump_object(op);
1911	LOG(llevError,"Trying to put object in NULL.\n%s\n", errmsg);
1912	return op;
1913	}
1914	if (where->head) {
1915	LOG(llevDebug,
1916	"Warning: Tried to insert object wrong part of multipart object.\n");
1917	where = where->head;
1918	}
1919	if (op->more) {	1613	if (op->more)
		1614	{
1920	LOG(llevError, "Tried to insert multipart object %s (%d)\n",	1615	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);
1921	op->name, op->count);
1922	return op;	1616	return op;
1923	}	1617	}
		1618
1924	CLEAR_FLAG(op, FLAG_OBJ_ORIGINAL);	1619	CLEAR_FLAG (op, FLAG_OBJ_ORIGINAL);
1925	CLEAR_FLAG(op, FLAG_REMOVED);	1620	CLEAR_FLAG (op, FLAG_REMOVED);
1926	if(op->nrof) {	1621	if (op->nrof)
		1622	{
1927	for(tmp=where->inv;tmp!=NULL;tmp=tmp->below)	1623	for (tmp = inv; tmp != NULL; tmp = tmp->below)
1928	if ( CAN_MERGE(tmp,op) ) {	1624	if (object::can_merge (tmp, op))
		1625	{
1929	/* return the original object and remove inserted object	1626	/* return the original object and remove inserted object
1930	(client needs the original object) */	1627	(client needs the original object) */
1931	tmp->nrof += op->nrof;	1628	tmp->nrof += op->nrof;
1932	/* Weight handling gets pretty funky. Since we are adding to	1629	/* Weight handling gets pretty funky. Since we are adding to
1933	* tmp->nrof, we need to increase the weight.	1630	* tmp->nrof, we need to increase the weight.
1934	*/	1631	*/
1935	add_weight (where, op->weight*op->nrof);	1632	add_weight (this, op->weight * op->nrof);
1936	SET_FLAG(op, FLAG_REMOVED);	1633	SET_FLAG (op, FLAG_REMOVED);
1937	free_object(op); /* free the inserted object */	1634	op->destroy (); /* free the inserted object */
1938	op = tmp;	1635	op = tmp;
1939	remove_ob (op); /* and fix old object's links */	1636	op->remove (); /* and fix old object's links */
1940	CLEAR_FLAG(op, FLAG_REMOVED);	1637	CLEAR_FLAG (op, FLAG_REMOVED);
1941	break;	1638	break;
1942	}	1639	}
1943		1640
1944	/* I assume combined objects have no inventory	1641	/* I assume combined objects have no inventory
1945	* We add the weight - this object could have just been removed	1642	* We add the weight - this object could have just been removed
1946	* (if it was possible to merge). calling remove_ob will subtract	1643	* (if it was possible to merge). calling remove_ob will subtract
1947	* the weight, so we need to add it in again, since we actually do	1644	* the weight, so we need to add it in again, since we actually do
1948	* the linking below	1645	* the linking below
1949	*/	1646	*/
1950	add_weight (where, op->weight*op->nrof);	1647	add_weight (this, op->weight * op->nrof);
		1648	}
1951	} else	1649	else
1952	add_weight (where, (op->weight+op->carrying));	1650	add_weight (this, (op->weight + op->carrying));
1953		1651
1954	otmp=is_player_inv(where);	1652	otmp = this->in_player ();
1955	if (otmp&&otmp->contr!=NULL) {	1653	if (otmp && otmp->contr)
1956	if (!QUERY_FLAG(otmp,FLAG_NO_FIX_PLAYER))	1654	if (!QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1957	fix_player(otmp);	1655	otmp->update_stats ();
1958	}
1959		1656
1960	op->map=NULL;	1657	op->map = 0;
1961	op->env=where;	1658	op->env = this;
1962	op->above=NULL;	1659	op->above = 0;
1963	op->below=NULL;	1660	op->below = 0;
1964	op->x=0,op->y=0;	1661	op->x = 0, op->y = 0;
1965	op->ox=0,op->oy=0;
1966		1662
1967	/* reset the light list and los of the players on the map */	1663	/* reset the light list and los of the players on the map */
1968	if((op->glow_radius!=0)&&where->map)	1664	if ((op->glow_radius != 0) && map)
1969	{	1665	{
1970	#ifdef DEBUG_LIGHTS	1666	#ifdef DEBUG_LIGHTS
1971	LOG(llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n",	1667	LOG (llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n", op->name);
1972	op->name);
1973	#endif /* DEBUG_LIGHTS */	1668	#endif /* DEBUG_LIGHTS */
1974	if (MAP_DARKNESS(where->map)) update_all_los(where->map, where->x, where->y);	1669	if (map->darkness)
		1670	update_all_los (map, x, y);
1975	}	1671	}
1976		1672
1977	/* Client has no idea of ordering so lets not bother ordering it here.	1673	/* Client has no idea of ordering so lets not bother ordering it here.
1978	* It sure simplifies this function...	1674	* It sure simplifies this function...
1979	*/	1675	*/
1980	if (where->inv==NULL)	1676	if (!inv)
1981	where->inv=op;	1677	inv = op;
1982	else {	1678	else
		1679	{
1983	op->below = where->inv;	1680	op->below = inv;
1984	op->below->above = op;	1681	op->below->above = op;
1985	where->inv = op;	1682	inv = op;
1986	}	1683	}
		1684
		1685	INVOKE_OBJECT (INSERT, this);
		1686
1987	return op;	1687	return op;
1988	}	1688	}
1989		1689
1990	/*	1690	/*
1991	* Checks if any objects has a move_type that matches objects	1691	* Checks if any objects has a move_type that matches objects
…		…
2005	*	1705	*
2006	* MSW 2001-07-08: Check all objects on space, not just those below	1706	* MSW 2001-07-08: Check all objects on space, not just those below
2007	* object being inserted. insert_ob_in_map may not put new objects	1707	* object being inserted. insert_ob_in_map may not put new objects
2008	* on top.	1708	* on top.
2009	*/	1709	*/
2010		1710	int
2011	int check_move_on (object *op, object *originator)	1711	check_move_on (object *op, object *originator)
2012	{	1712	{
2013	object *tmp;	1713	object *tmp;
2014	tag_t tag;
2015	mapstruct *m=op->map;	1714	maptile *m = op->map;
2016	int x=op->x, y=op->y;	1715	int x = op->x, y = op->y;
		1716
2017	MoveType move_on, move_slow, move_block;	1717	MoveType move_on, move_slow, move_block;
2018		1718
2019	if(QUERY_FLAG(op,FLAG_NO_APPLY))	1719	if (QUERY_FLAG (op, FLAG_NO_APPLY))
2020	return 0;
2021
2022	tag = op->count;
2023
2024	move_on = GET_MAP_MOVE_ON(op->map, op->x, op->y);
2025	move_slow = GET_MAP_MOVE_SLOW(op->map, op->x, op->y);
2026	move_block = GET_MAP_MOVE_BLOCK(op->map, op->x, op->y);
2027
2028	/* if nothing on this space will slow op down or be applied,
2029	* no need to do checking below. have to make sure move_type
2030	* is set, as lots of objects don't have it set - we treat that
2031	* as walking.
2032	*/
2033	if (op->move_type && !(op->move_type & move_on) && !(op->move_type & move_slow))
2034	return 0;
2035
2036	/* This is basically inverse logic of that below - basically,
2037	* if the object can avoid the move on or slow move, they do so,
2038	* but can't do it if the alternate movement they are using is
2039	* blocked. Logic on this seems confusing, but does seem correct.
2040	*/
2041	if ((op->move_type & ~move_on & ~move_block) != 0 &&
2042	(op->move_type & ~move_slow & ~move_block) != 0) return 0;
2043
2044	/* The objects have to be checked from top to bottom.
2045	* Hence, we first go to the top:
2046	*/
2047
2048	for (tmp=GET_MAP_OB(op->map, op->x, op->y); tmp!=NULL &&
2049	tmp->above!=NULL; tmp=tmp->above) {
2050	/* Trim the search when we find the first other spell effect
2051	* this helps performance so that if a space has 50 spell objects,
2052	* we don't need to check all of them.
2053	*/
2054	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG(tmp, FLAG_NO_PICK)) break;
2055	}
2056	for(;tmp!=NULL; tmp=tmp->below) {
2057	if (tmp == op) continue; /* Can't apply yourself */
2058
2059	/* Check to see if one of the movement types should be slowed down.
2060	* Second check makes sure that the movement types not being slowed
2061	* (~slow_move) is not blocked on this space - just because the
2062	* space doesn't slow down swimming (for example), if you can't actually
2063	* swim on that space, can't use it to avoid the penalty.
2064	*/
2065	if (!QUERY_FLAG(op, FLAG_WIZPASS)) {
2066	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||
2067	((op->move_type & tmp->move_slow) &&
2068	(op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0)) {
2069
2070	float diff;
2071
2072	diff = tmp->move_slow_penalty*FABS(op->speed);
2073	if (op->type == PLAYER) {
2074	if ((QUERY_FLAG(tmp, FLAG_IS_HILLY) && find_skill_by_number(op, SK_CLIMBING)) ||
2075	(QUERY_FLAG(tmp, FLAG_IS_WOODED) && find_skill_by_number(op, SK_WOODSMAN))) {
2076	diff /= 4.0;
2077	}
2078	}
2079	op->speed_left -= diff;
2080	}
2081	}
2082
2083	/* Basically same logic as above, except now for actual apply. */
2084	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||
2085	((op->move_type & tmp->move_on) &&
2086	(op->move_type & ~tmp->move_on & ~tmp->move_block)==0)) {
2087
2088	move_apply(tmp, op, originator);
2089	if (was_destroyed (op, tag))
2090	return 1;
2091
2092	/* what the person/creature stepped onto has moved the object
2093	* someplace new. Don't process any further - if we did,
2094	* have a feeling strange problems would result.
2095	*/
2096	if (op->map != m || op->x != x || op->y != y) return 0;
2097	}
2098	}
2099	return 0;	1720	return 0;
		1721
		1722	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);
		1723	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);
		1724	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);
		1725
		1726	/* if nothing on this space will slow op down or be applied,
		1727	* no need to do checking below. have to make sure move_type
		1728	* is set, as lots of objects don't have it set - we treat that
		1729	* as walking.
		1730	*/
		1731	if (op->move_type && !(op->move_type & move_on) && !(op->move_type & move_slow))
		1732	return 0;
		1733
		1734	/* This is basically inverse logic of that below - basically,
		1735	* if the object can avoid the move on or slow move, they do so,
		1736	* but can't do it if the alternate movement they are using is
		1737	* blocked. Logic on this seems confusing, but does seem correct.
		1738	*/
		1739	if ((op->move_type & ~move_on & ~move_block) != 0 && (op->move_type & ~move_slow & ~move_block) != 0)
		1740	return 0;
		1741
		1742	/* The objects have to be checked from top to bottom.
		1743	* Hence, we first go to the top:
		1744	*/
		1745
		1746	for (tmp = op->ms ().bot; tmp && tmp->above; tmp = tmp->above)
		1747	{
		1748	/* Trim the search when we find the first other spell effect
		1749	* this helps performance so that if a space has 50 spell objects,
		1750	* we don't need to check all of them.
		1751	*/
		1752	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG (tmp, FLAG_NO_PICK))
		1753	break;
		1754	}
		1755
		1756	for (; tmp; tmp = tmp->below)
		1757	{
		1758	if (tmp == op)
		1759	continue; /* Can't apply yourself */
		1760
		1761	/* Check to see if one of the movement types should be slowed down.
		1762	* Second check makes sure that the movement types not being slowed
		1763	* (~slow_move) is not blocked on this space - just because the
		1764	* space doesn't slow down swimming (for example), if you can't actually
		1765	* swim on that space, can't use it to avoid the penalty.
		1766	*/
		1767	if (!QUERY_FLAG (op, FLAG_WIZPASS))
		1768	{
		1769	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||
		1770	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))
		1771	{
		1772
		1773	float
		1774	diff = tmp->move_slow_penalty * FABS (op->speed);
		1775
		1776	if (op->type == PLAYER)
		1777	if ((QUERY_FLAG (tmp, FLAG_IS_HILLY) && find_skill_by_number (op, SK_CLIMBING)) ||
		1778	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))
		1779	diff /= 4.0;
		1780
		1781	op->speed_left -= diff;
		1782	}
		1783	}
		1784
		1785	/* Basically same logic as above, except now for actual apply. */
		1786	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||
		1787	((op->move_type & tmp->move_on) && (op->move_type & ~tmp->move_on & ~tmp->move_block) == 0))
		1788	{
		1789	move_apply (tmp, op, originator);
		1790
		1791	if (op->destroyed ())
		1792	return 1;
		1793
		1794	/* what the person/creature stepped onto has moved the object
		1795	* someplace new. Don't process any further - if we did,
		1796	* have a feeling strange problems would result.
		1797	*/
		1798	if (op->map != m || op->x != x || op->y != y)
		1799	return 0;
		1800	}
		1801	}
		1802
		1803	return 0;
2100	}	1804	}
2101		1805
2102	/*	1806	/*
2103	* present_arch(arch, map, x, y) searches for any objects with	1807	* present_arch(arch, map, x, y) searches for any objects with
2104	* a matching archetype at the given map and coordinates.	1808	* a matching archetype at the given map and coordinates.
2105	* The first matching object is returned, or NULL if none.	1809	* The first matching object is returned, or NULL if none.
2106	*/	1810	*/
2107		1811	object *
2108	object *present_arch(const archetype *at, mapstruct *m, int x, int y) {	1812	present_arch (const archetype *at, maptile *m, int x, int y)
2109	object *tmp;	1813	{
2110	if(m==NULL || out_of_map(m,x,y)) {	1814	if (!m || out_of_map (m, x, y))
		1815	{
2111	LOG(llevError,"Present_arch called outside map.\n");	1816	LOG (llevError, "Present_arch called outside map.\n");
2112	return NULL;	1817	return NULL;
2113	}	1818	}
2114	for(tmp=GET_MAP_OB(m,x,y); tmp != NULL; tmp = tmp->above)	1819
		1820	for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)
2115	if(tmp->arch == at)	1821	if (tmp->arch == at)
2116	return tmp;	1822	return tmp;
		1823
2117	return NULL;	1824	return NULL;
2118	}	1825	}
2119		1826
2120	/*	1827	/*
2121	* present(type, map, x, y) searches for any objects with	1828	* present(type, map, x, y) searches for any objects with
2122	* a matching type variable at the given map and coordinates.	1829	* a matching type variable at the given map and coordinates.
2123	* The first matching object is returned, or NULL if none.	1830	* The first matching object is returned, or NULL if none.
2124	*/	1831	*/
2125		1832	object *
2126	object *present(unsigned char type,mapstruct *m, int x,int y) {	1833	present (unsigned char type, maptile *m, int x, int y)
2127	object *tmp;	1834	{
2128	if(out_of_map(m,x,y)) {	1835	if (out_of_map (m, x, y))
		1836	{
2129	LOG(llevError,"Present called outside map.\n");	1837	LOG (llevError, "Present called outside map.\n");
2130	return NULL;	1838	return NULL;
2131	}	1839	}
2132	for(tmp=GET_MAP_OB(m,x,y);tmp!=NULL;tmp=tmp->above)	1840
		1841	for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)
2133	if(tmp->type==type)	1842	if (tmp->type == type)
2134	return tmp;	1843	return tmp;
		1844
2135	return NULL;	1845	return NULL;
2136	}	1846	}
2137		1847
2138	/*	1848	/*
2139	* present_in_ob(type, object) searches for any objects with	1849	* present_in_ob(type, object) searches for any objects with
2140	* a matching type variable in the inventory of the given object.	1850	* a matching type variable in the inventory of the given object.
2141	* The first matching object is returned, or NULL if none.	1851	* The first matching object is returned, or NULL if none.
2142	*/	1852	*/
2143		1853	object *
2144	object *present_in_ob(unsigned char type, const object *op) {	1854	present_in_ob (unsigned char type, const object *op)
2145	object *tmp;	1855	{
2146	for(tmp=op->inv;tmp!=NULL;tmp=tmp->below)	1856	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
2147	if(tmp->type==type)	1857	if (tmp->type == type)
2148	return tmp;	1858	return tmp;
		1859
2149	return NULL;	1860	return NULL;
2150	}	1861	}
2151		1862
2152	/*	1863	/*
2153	* present_in_ob (type, str, object) searches for any objects with	1864	* present_in_ob (type, str, object) searches for any objects with
…		…
2161	* str is the string to match against. Note that we match against	1872	* str is the string to match against. Note that we match against
2162	* the object name, not the archetype name. this is so that the	1873	* the object name, not the archetype name. this is so that the
2163	* spell code can use one object type (force), but change it's name	1874	* spell code can use one object type (force), but change it's name
2164	* to be unique.	1875	* to be unique.
2165	*/	1876	*/
2166		1877	object *
2167	object *present_in_ob_by_name(int type, const char *str, const object *op) {	1878	present_in_ob_by_name (int type, const char *str, const object *op)
2168	object *tmp;	1879	{
2169
2170	for(tmp=op->inv; tmp!=NULL; tmp=tmp->below) {	1880	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2171	if ((type==-1 || tmp->type==type) && (!strcmp(str, tmp->name)))	1881	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))
2172	return tmp;	1882	return tmp;
2173	}	1883
2174	return NULL;	1884	return 0;
2175	}	1885	}
2176		1886
2177	/*	1887	/*
2178	* present_arch_in_ob(archetype, object) searches for any objects with	1888	* present_arch_in_ob(archetype, object) searches for any objects with
2179	* a matching archetype in the inventory of the given object.	1889	* a matching archetype in the inventory of the given object.
2180	* The first matching object is returned, or NULL if none.	1890	* The first matching object is returned, or NULL if none.
2181	*/	1891	*/
2182		1892	object *
2183	object *present_arch_in_ob(const archetype *at, const object *op) {	1893	present_arch_in_ob (const archetype *at, const object *op)
2184	object *tmp;	1894	{
2185	for(tmp=op->inv;tmp!=NULL;tmp=tmp->below)	1895	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
2186	if( tmp->arch == at)	1896	if (tmp->arch == at)
2187	return tmp;	1897	return tmp;
		1898
2188	return NULL;	1899	return NULL;
2189	}	1900	}
2190		1901
2191	/*	1902	/*
2192	* activate recursively a flag on an object inventory	1903	* activate recursively a flag on an object inventory
2193	*/	1904	*/
		1905	void
2194	void flag_inv(object*op, int flag){	1906	flag_inv (object *op, int flag)
2195	object *tmp;	1907	{
2196	if(op->inv)	1908	if (op->inv)
2197	for(tmp = op->inv; tmp != NULL; tmp = tmp->below){	1909	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
		1910	{
2198	SET_FLAG(tmp, flag);	1911	SET_FLAG (tmp, flag);
2199	flag_inv(tmp,flag);	1912	flag_inv (tmp, flag);
2200	}	1913	}
		1914	}
		1915
2201	}/*	1916	/*
2202	* desactivate recursively a flag on an object inventory	1917	* deactivate recursively a flag on an object inventory
2203	*/	1918	*/
		1919	void
2204	void unflag_inv(object*op, int flag){	1920	unflag_inv (object *op, int flag)
2205	object *tmp;	1921	{
2206	if(op->inv)	1922	if (op->inv)
2207	for(tmp = op->inv; tmp != NULL; tmp = tmp->below){	1923	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
		1924	{
2208	CLEAR_FLAG(tmp, flag);	1925	CLEAR_FLAG (tmp, flag);
2209	unflag_inv(tmp,flag);	1926	unflag_inv (tmp, flag);
2210	}	1927	}
2211	}	1928	}
2212		1929
2213	/*	1930	/*
2214	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in	1931	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in
2215	* all it's inventory (recursively).	1932	* all it's inventory (recursively).
2216	* If checksums are used, a player will get set_cheat called for	1933	* If checksums are used, a player will get set_cheat called for
2217	* him/her-self and all object carried by a call to this function.	1934	* him/her-self and all object carried by a call to this function.
2218	*/	1935	*/
2219		1936	void
2220	void set_cheat(object *op) {	1937	set_cheat (object *op)
		1938	{
2221	SET_FLAG(op, FLAG_WAS_WIZ);	1939	SET_FLAG (op, FLAG_WAS_WIZ);
2222	flag_inv(op, FLAG_WAS_WIZ);	1940	flag_inv (op, FLAG_WAS_WIZ);
2223	}	1941	}
2224		1942
2225	/*	1943	/*
2226	* find_free_spot(object, map, x, y, start, stop) will search for	1944	* find_free_spot(object, map, x, y, start, stop) will search for
2227	* a spot at the given map and coordinates which will be able to contain	1945	* a spot at the given map and coordinates which will be able to contain
…		…
2241	* because arch_blocked (now ob_blocked) needs to know the movement type	1959	* because arch_blocked (now ob_blocked) needs to know the movement type
2242	* to know if the space in question will block the object. We can't use	1960	* to know if the space in question will block the object. We can't use
2243	* the archetype because that isn't correct if the monster has been	1961	* the archetype because that isn't correct if the monster has been
2244	* customized, changed states, etc.	1962	* customized, changed states, etc.
2245	*/	1963	*/
2246		1964	int
2247	int find_free_spot(const object *ob, mapstruct *m,int x,int y,int start,int stop) {	1965	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)
		1966	{
2248	int i,index=0, flag;	1967	int index = 0, flag;
2249	static int altern[SIZEOFFREE];	1968	int altern[SIZEOFFREE];
2250		1969
2251	for(i=start;i<stop;i++) {	1970	for (int i = start; i < stop; i++)
		1971	{
2252	flag = ob_blocked(ob,m,x+freearr_x[i],y+freearr_y[i]);	1972	flag = ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]);
2253	if(!flag)	1973	if (!flag)
2254	altern[index++]=i;	1974	altern [index++] = i;
2255		1975
2256	/* Basically, if we find a wall on a space, we cut down the search size.	1976	/* Basically, if we find a wall on a space, we cut down the search size.
2257	* In this way, we won't return spaces that are on another side of a wall.	1977	* In this way, we won't return spaces that are on another side of a wall.
2258	* This mostly work, but it cuts down the search size in all directions -	1978	* This mostly work, but it cuts down the search size in all directions -
2259	* if the space being examined only has a wall to the north and empty	1979	* if the space being examined only has a wall to the north and empty
2260	* spaces in all the other directions, this will reduce the search space	1980	* spaces in all the other directions, this will reduce the search space
2261	* to only the spaces immediately surrounding the target area, and	1981	* to only the spaces immediately surrounding the target area, and
2262	* won't look 2 spaces south of the target space.	1982	* won't look 2 spaces south of the target space.
2263	*/	1983	*/
2264	else if ((flag & AB_NO_PASS) && maxfree[i]<stop)	1984	else if ((flag & P_NO_PASS) && maxfree[i] < stop)
2265	stop=maxfree[i];	1985	stop = maxfree[i];
2266	}	1986	}
2267	if(!index) return -1;	1987
		1988	if (!index)
		1989	return -1;
		1990
2268	return altern[RANDOM()%index];	1991	return altern[RANDOM () % index];
2269	}	1992	}
2270		1993
2271	/*	1994	/*
2272	* find_first_free_spot(archetype, mapstruct, x, y) works like	1995	* find_first_free_spot(archetype, maptile, x, y) works like
2273	* find_free_spot(), but it will search max number of squares.	1996	* find_free_spot(), but it will search max number of squares.
2274	* But it will return the first available spot, not a random choice.	1997	* But it will return the first available spot, not a random choice.
2275	* Changed 0.93.2: Have it return -1 if there is no free spot available.	1998	* Changed 0.93.2: Have it return -1 if there is no free spot available.
2276	*/	1999	*/
2277		2000	int
2278	int find_first_free_spot(const object *ob, mapstruct *m,int x,int y) {	2001	find_first_free_spot (const object *ob, maptile *m, int x, int y)
2279	int i;	2002	{
2280	for(i=0;i<SIZEOFFREE;i++) {	2003	for (int i = 0; i < SIZEOFFREE; i++)
2281	if(!ob_blocked(ob,m,x+freearr_x[i],y+freearr_y[i]))	2004	if (!ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]))
2282	return i;	2005	return i;
2283	}	2006
2284	return -1;	2007	return -1;
2285	}	2008	}
2286		2009
2287	/*	2010	/*
2288	* The function permute(arr, begin, end) randomly reorders the array	2011	* The function permute(arr, begin, end) randomly reorders the array
2289	* arr[begin..end-1].	2012	* arr[begin..end-1].
		2013	* now uses a fisher-yates shuffle, old permute was broken
2290	*/	2014	*/
		2015	static void
2291	static void permute(int *arr, int begin, int end)	2016	permute (int *arr, int begin, int end)
2292	{	2017	{
2293	int i, j, tmp, len;	2018	arr += begin;
		2019	end -= begin;
2294		2020
2295	len = end-begin;	2021	while (--end)
2296	for(i = begin; i < end; i++)	2022	swap (arr [end], arr [RANDOM () % (end + 1)]);
2297	{
2298	j = begin+RANDOM()%len;
2299
2300	tmp = arr[i];
2301	arr[i] = arr[j];
2302	arr[j] = tmp;
2303	}
2304	}	2023	}
2305		2024
2306	/* new function to make monster searching more efficient, and effective!	2025	/* new function to make monster searching more efficient, and effective!
2307	* This basically returns a randomized array (in the passed pointer) of	2026	* This basically returns a randomized array (in the passed pointer) of
2308	* the spaces to find monsters. In this way, it won't always look for	2027	* the spaces to find monsters. In this way, it won't always look for
2309	* monsters to the north first. However, the size of the array passed	2028	* monsters to the north first. However, the size of the array passed
2310	* covers all the spaces, so within that size, all the spaces within	2029	* covers all the spaces, so within that size, all the spaces within
2311	* the 3x3 area will be searched, just not in a predictable order.	2030	* the 3x3 area will be searched, just not in a predictable order.
2312	*/	2031	*/
		2032	void
2313	void get_search_arr(int *search_arr)	2033	get_search_arr (int *search_arr)
2314	{	2034	{
2315	int i;	2035	int i;
2316		2036
2317	for(i = 0; i < SIZEOFFREE; i++)	2037	for (i = 0; i < SIZEOFFREE; i++)
2318	{
2319	search_arr[i] = i;	2038	search_arr[i] = i;
2320	}
2321		2039
2322	permute(search_arr, 1, SIZEOFFREE1+1);	2040	permute (search_arr, 1, SIZEOFFREE1 + 1);
2323	permute(search_arr, SIZEOFFREE1+1, SIZEOFFREE2+1);	2041	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);
2324	permute(search_arr, SIZEOFFREE2+1, SIZEOFFREE);	2042	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);
2325	}	2043	}
2326		2044
2327	/*	2045	/*
2328	* find_dir(map, x, y, exclude) will search some close squares in the	2046	* find_dir(map, x, y, exclude) will search some close squares in the
2329	* given map at the given coordinates for live objects.	2047	* given map at the given coordinates for live objects.
…		…
2334	* Perhaps incorrectly, but I'm making the assumption that exclude	2052	* Perhaps incorrectly, but I'm making the assumption that exclude
2335	* is actually want is going to try and move there. We need this info	2053	* is actually want is going to try and move there. We need this info
2336	* because we have to know what movement the thing looking to move	2054	* because we have to know what movement the thing looking to move
2337	* there is capable of.	2055	* there is capable of.
2338	*/	2056	*/
2339		2057	int
2340	int find_dir(mapstruct *m, int x, int y, object *exclude) {	2058	find_dir (maptile *m, int x, int y, object *exclude)
		2059	{
2341	int i,max=SIZEOFFREE, mflags;	2060	int i, max = SIZEOFFREE, mflags;
		2061
2342	sint16 nx, ny;	2062	sint16 nx, ny;
2343	object *tmp;	2063	object *tmp;
2344	mapstruct *mp;	2064	maptile *mp;
		2065
2345	MoveType blocked, move_type;	2066	MoveType blocked, move_type;
2346		2067
2347	if (exclude && exclude->head) {	2068	if (exclude && exclude->head)
		2069	{
2348	exclude = exclude->head;	2070	exclude = exclude->head;
2349	move_type = exclude->move_type;	2071	move_type = exclude->move_type;
2350	} else {	2072	}
		2073	else
		2074	{
2351	/* If we don't have anything, presume it can use all movement types. */	2075	/* If we don't have anything, presume it can use all movement types. */
2352	move_type=MOVE_ALL;	2076	move_type = MOVE_ALL;
		2077	}
		2078
		2079	for (i = 1; i < max; i++)
2353	}	2080	{
2354		2081	mp = m;
2355	for(i=1;i<max;i++) {
2356	mp = m;
2357	nx = x + freearr_x[i];	2082	nx = x + freearr_x[i];
2358	ny = y + freearr_y[i];	2083	ny = y + freearr_y[i];
2359		2084
2360	mflags = get_map_flags(m, &mp, nx, ny, &nx, &ny);	2085	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);
		2086
2361	if (mflags & P_OUT_OF_MAP) {	2087	if (mflags & P_OUT_OF_MAP)
2362	max = maxfree[i];	2088	max = maxfree[i];
2363	} else {	2089	else
2364	blocked = GET_MAP_MOVE_BLOCK(mp, nx, ny);	2090	{
		2091	mapspace &ms = mp->at (nx, ny);
2365		2092
		2093	blocked = ms.move_block;
		2094
2366	if ((move_type & blocked) == move_type) {	2095	if ((move_type & blocked) == move_type)
2367	max=maxfree[i];	2096	max = maxfree[i];
2368	} else if (mflags & P_IS_ALIVE) {	2097	else if (mflags & P_IS_ALIVE)
2369	for (tmp=GET_MAP_OB(mp,nx,ny); tmp!= NULL; tmp=tmp->above) {	2098	{
2370	if ((QUERY_FLAG(tmp,FLAG_MONSTER) || tmp->type==PLAYER) &&	2099	for (tmp = ms.bot; tmp; tmp = tmp->above)
		2100	if ((tmp->flag [FLAG_MONSTER] || tmp->type == PLAYER)
2371	(tmp != exclude ||(tmp->head && tmp->head != exclude))) {	2101	&& (tmp != exclude || (tmp->head && tmp->head != exclude)))
2372	break;	2102	break;
2373	}	2103
2374	}	2104	if (tmp)
2375	if(tmp) {
2376	return freedir[i];	2105	return freedir[i];
2377	}	2106	}
		2107	}
2378	}	2108	}
2379	}	2109
2380	}
2381	return 0;	2110	return 0;
2382	}	2111	}
2383		2112
2384	/*	2113	/*
2385	* distance(object 1, object 2) will return the square of the	2114	* distance(object 1, object 2) will return the square of the
2386	* distance between the two given objects.	2115	* distance between the two given objects.
2387	*/	2116	*/
2388		2117	int
2389	int distance(const object *ob1, const object *ob2) {	2118	distance (const object *ob1, const object *ob2)
2390	int i;	2119	{
2391	i= (ob1->x - ob2->x)*(ob1->x - ob2->x)+	2120	return (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);
2392	(ob1->y - ob2->y)*(ob1->y - ob2->y);
2393	return i;
2394	}	2121	}
2395		2122
2396	/*	2123	/*
2397	* find_dir_2(delta-x,delta-y) will return a direction in which	2124	* find_dir_2(delta-x,delta-y) will return a direction in which
2398	* an object which has subtracted the x and y coordinates of another	2125	* an object which has subtracted the x and y coordinates of another
2399	* object, needs to travel toward it.	2126	* object, needs to travel toward it.
2400	*/	2127	*/
2401		2128	int
2402	int find_dir_2(int x, int y) {	2129	find_dir_2 (int x, int y)
		2130	{
2403	int q;	2131	int q;
2404		2132
2405	if(y)	2133	if (y)
2406	q=x*100/y;	2134	q = x * 100 / y;
2407	else if (x)	2135	else if (x)
2408	q= -300*x;	2136	q = -300 * x;
2409	else	2137	else
2410	return 0;	2138	return 0;
2411		2139
2412	if(y>0) {	2140	if (y > 0)
		2141	{
2413	if(q < -242)	2142	if (q < -242)
2414	return 3 ;	2143	return 3;
2415	if (q < -41)	2144	if (q < -41)
2416	return 2 ;	2145	return 2;
2417	if (q < 41)	2146	if (q < 41)
2418	return 1 ;	2147	return 1;
2419	if (q < 242)	2148	if (q < 242)
2420	return 8 ;	2149	return 8;
2421	return 7 ;	2150	return 7;
2422	}	2151	}
2423		2152
2424	if (q < -242)	2153	if (q < -242)
2425	return 7 ;	2154	return 7;
2426	if (q < -41)	2155	if (q < -41)
2427	return 6 ;	2156	return 6;
2428	if (q < 41)	2157	if (q < 41)
2429	return 5 ;	2158	return 5;
2430	if (q < 242)	2159	if (q < 242)
2431	return 4 ;	2160	return 4;
2432		2161
2433	return 3 ;	2162	return 3;
2434	}	2163	}
2435		2164
2436	/*	2165	/*
2437	* absdir(int): Returns a number between 1 and 8, which represent	2166	* absdir(int): Returns a number between 1 and 8, which represent
2438	* the "absolute" direction of a number (it actually takes care of	2167	* the "absolute" direction of a number (it actually takes care of
2439	* "overflow" in previous calculations of a direction).	2168	* "overflow" in previous calculations of a direction).
2440	*/	2169	*/
2441		2170
		2171	int
2442	int absdir(int d) {	2172	absdir (int d)
2443	while(d<1) d+=8;	2173	{
2444	while(d>8) d-=8;	2174	while (d < 1)
		2175	d += 8;
		2176
		2177	while (d > 8)
		2178	d -= 8;
		2179
2445	return d;	2180	return d;
2446	}	2181	}
2447		2182
2448	/*	2183	/*
2449	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is	2184	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is
2450	* between two directions (which are expected to be absolute (see absdir())	2185	* between two directions (which are expected to be absolute (see absdir())
2451	*/	2186	*/
2452		2187
		2188	int
2453	int dirdiff(int dir1, int dir2) {	2189	dirdiff (int dir1, int dir2)
		2190	{
2454	int d;	2191	int d;
		2192
2455	d = abs(dir1 - dir2);	2193	d = abs (dir1 - dir2);
2456	if(d>4)	2194	if (d > 4)
2457	d = 8 - d;	2195	d = 8 - d;
		2196
2458	return d;	2197	return d;
2459	}	2198	}
2460		2199
2461	/* peterm:	2200	/* peterm:
2462	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.	2201	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.
…		…
2465	* This basically means that if direction is 15, then it could either go	2204	* This basically means that if direction is 15, then it could either go
2466	* direction 4, 14, or 16 to get back to where we are.	2205	* direction 4, 14, or 16 to get back to where we are.
2467	* Moved from spell_util.c to object.c with the other related direction	2206	* Moved from spell_util.c to object.c with the other related direction
2468	* functions.	2207	* functions.
2469	*/	2208	*/
2470
2471	int reduction_dir[SIZEOFFREE][3] = {	2209	int reduction_dir[SIZEOFFREE][3] = {
2472	{0,0,0}, /* 0 */	2210	{0, 0, 0}, /* 0 */
2473	{0,0,0}, /* 1 */	2211	{0, 0, 0}, /* 1 */
2474	{0,0,0}, /* 2 */	2212	{0, 0, 0}, /* 2 */
2475	{0,0,0}, /* 3 */	2213	{0, 0, 0}, /* 3 */
2476	{0,0,0}, /* 4 */	2214	{0, 0, 0}, /* 4 */
2477	{0,0,0}, /* 5 */	2215	{0, 0, 0}, /* 5 */
2478	{0,0,0}, /* 6 */	2216	{0, 0, 0}, /* 6 */
2479	{0,0,0}, /* 7 */	2217	{0, 0, 0}, /* 7 */
2480	{0,0,0}, /* 8 */	2218	{0, 0, 0}, /* 8 */
2481	{8,1,2}, /* 9 */	2219	{8, 1, 2}, /* 9 */
2482	{1,2,-1}, /* 10 */	2220	{1, 2, -1}, /* 10 */
2483	{2,10,12}, /* 11 */	2221	{2, 10, 12}, /* 11 */
2484	{2,3,-1}, /* 12 */	2222	{2, 3, -1}, /* 12 */
2485	{2,3,4}, /* 13 */	2223	{2, 3, 4}, /* 13 */
2486	{3,4,-1}, /* 14 */	2224	{3, 4, -1}, /* 14 */
2487	{4,14,16}, /* 15 */	2225	{4, 14, 16}, /* 15 */
2488	{5,4,-1}, /* 16 */	2226	{5, 4, -1}, /* 16 */
2489	{4,5,6}, /* 17 */	2227	{4, 5, 6}, /* 17 */
2490	{6,5,-1}, /* 18 */	2228	{6, 5, -1}, /* 18 */
2491	{6,20,18}, /* 19 */	2229	{6, 20, 18}, /* 19 */
2492	{7,6,-1}, /* 20 */	2230	{7, 6, -1}, /* 20 */
2493	{6,7,8}, /* 21 */	2231	{6, 7, 8}, /* 21 */
2494	{7,8,-1}, /* 22 */	2232	{7, 8, -1}, /* 22 */
2495	{8,22,24}, /* 23 */	2233	{8, 22, 24}, /* 23 */
2496	{8,1,-1}, /* 24 */	2234	{8, 1, -1}, /* 24 */
2497	{24,9,10}, /* 25 */	2235	{24, 9, 10}, /* 25 */
2498	{9,10,-1}, /* 26 */	2236	{9, 10, -1}, /* 26 */
2499	{10,11,-1}, /* 27 */	2237	{10, 11, -1}, /* 27 */
2500	{27,11,29}, /* 28 */	2238	{27, 11, 29}, /* 28 */
2501	{11,12,-1}, /* 29 */	2239	{11, 12, -1}, /* 29 */
2502	{12,13,-1}, /* 30 */	2240	{12, 13, -1}, /* 30 */
2503	{12,13,14}, /* 31 */	2241	{12, 13, 14}, /* 31 */
2504	{13,14,-1}, /* 32 */	2242	{13, 14, -1}, /* 32 */
2505	{14,15,-1}, /* 33 */	2243	{14, 15, -1}, /* 33 */
2506	{33,15,35}, /* 34 */	2244	{33, 15, 35}, /* 34 */
2507	{16,15,-1}, /* 35 */	2245	{16, 15, -1}, /* 35 */
2508	{17,16,-1}, /* 36 */	2246	{17, 16, -1}, /* 36 */
2509	{18,17,16}, /* 37 */	2247	{18, 17, 16}, /* 37 */
2510	{18,17,-1}, /* 38 */	2248	{18, 17, -1}, /* 38 */
2511	{18,19,-1}, /* 39 */	2249	{18, 19, -1}, /* 39 */
2512	{41,19,39}, /* 40 */	2250	{41, 19, 39}, /* 40 */
2513	{19,20,-1}, /* 41 */	2251	{19, 20, -1}, /* 41 */
2514	{20,21,-1}, /* 42 */	2252	{20, 21, -1}, /* 42 */
2515	{20,21,22}, /* 43 */	2253	{20, 21, 22}, /* 43 */
2516	{21,22,-1}, /* 44 */	2254	{21, 22, -1}, /* 44 */
2517	{23,22,-1}, /* 45 */	2255	{23, 22, -1}, /* 45 */
2518	{45,47,23}, /* 46 */	2256	{45, 47, 23}, /* 46 */
2519	{23,24,-1}, /* 47 */	2257	{23, 24, -1}, /* 47 */
2520	{24,9,-1}}; /* 48 */	2258	{24, 9, -1}
		2259	}; /* 48 */
2521		2260
2522	/* Recursive routine to step back and see if we can	2261	/* Recursive routine to step back and see if we can
2523	* find a path to that monster that we found. If not,	2262	* find a path to that monster that we found. If not,
2524	* we don't bother going toward it. Returns 1 if we	2263	* we don't bother going toward it. Returns 1 if we
2525	* can see a direct way to get it	2264	* can see a direct way to get it
2526	* Modified to be map tile aware -.MSW	2265	* Modified to be map tile aware -.MSW
2527	*/	2266	*/
2528		2267	int
2529
2530	int can_see_monsterP(mapstruct *m, int x, int y,int dir) {	2268	can_see_monsterP (maptile *m, int x, int y, int dir)
		2269	{
2531	sint16 dx, dy;	2270	sint16 dx, dy;
2532	int mflags;	2271	int mflags;
2533		2272
		2273	if (dir < 0)
2534	if(dir<0) return 0; /* exit condition: invalid direction */	2274	return 0; /* exit condition: invalid direction */
2535		2275
2536	dx = x + freearr_x[dir];	2276	dx = x + freearr_x[dir];
2537	dy = y + freearr_y[dir];	2277	dy = y + freearr_y[dir];
2538		2278
2539	mflags = get_map_flags(m, &m, dx, dy, &dx, &dy);	2279	mflags = get_map_flags (m, &m, dx, dy, &dx, &dy);
2540		2280
2541	/* This functional arguably was incorrect before - it was	2281	/* This functional arguably was incorrect before - it was
2542	* checking for P_WALL - that was basically seeing if	2282	* checking for P_WALL - that was basically seeing if
2543	* we could move to the monster - this is being more	2283	* we could move to the monster - this is being more
2544	* literal on if we can see it. To know if we can actually	2284	* literal on if we can see it. To know if we can actually
2545	* move to the monster, we'd need the monster passed in or	2285	* move to the monster, we'd need the monster passed in or
2546	* at least its move type.	2286	* at least its move type.
2547	*/	2287	*/
2548	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW)) return 0;	2288	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW))
		2289	return 0;
2549		2290
2550	/* yes, can see. */	2291	/* yes, can see. */
2551	if(dir < 9) return 1;	2292	if (dir < 9)
		2293	return 1;
		2294
2552	return can_see_monsterP(m, x, y, reduction_dir[dir][0]) |	2295	return can_see_monsterP (m, x, y, reduction_dir[dir][0])
2553	can_see_monsterP(m,x,y, reduction_dir[dir][1]) |	2296	| can_see_monsterP (m, x, y, reduction_dir[dir][1])
2554	can_see_monsterP(m,x,y, reduction_dir[dir][2]);	2297	| can_see_monsterP (m, x, y, reduction_dir[dir][2]);
2555	}	2298	}
2556		2299
2557
2558
2559	/*	2300	/*
2560	* can_pick(picker, item): finds out if an object is possible to be	2301	* can_pick(picker, item): finds out if an object is possible to be
2561	* picked up by the picker. Returnes 1 if it can be	2302	* picked up by the picker. Returnes 1 if it can be
2562	* picked up, otherwise 0.	2303	* picked up, otherwise 0.
2563	*	2304	*
…		…
2565	* core dumps if they do.	2306	* core dumps if they do.
2566	*	2307	*
2567	* Add a check so we can't pick up invisible objects (0.93.8)	2308	* Add a check so we can't pick up invisible objects (0.93.8)
2568	*/	2309	*/
2569		2310
		2311	int
2570	int can_pick(const object *who, const object *item) {	2312	can_pick (const object *who, const object *item)
		2313	{
2571	return /*QUERY_FLAG(who,FLAG_WIZ)||*/	2314	return /*QUERY_FLAG(who,FLAG_WIZ)|| */
2572	(item->weight>0&&!QUERY_FLAG(item,FLAG_NO_PICK)&&	2315	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&
2573	!QUERY_FLAG(item,FLAG_ALIVE)&&!item->invisible &&	2316	!QUERY_FLAG (item, FLAG_ALIVE) && !item->invisible && (who->type == PLAYER || item->weight < who->weight / 3));
2574	(who->type==PLAYER||item->weight<who->weight/3));
2575	}	2317	}
2576
2577		2318
2578	/*	2319	/*
2579	* create clone from object to another	2320	* create clone from object to another
2580	*/	2321	*/
		2322	object *
2581	object *object_create_clone (object *asrc) {	2323	object_create_clone (object *asrc)
		2324	{
2582	object *dst = NULL,*tmp,*src,*part,*prev, *item;	2325	object *dst = 0, *tmp, *src, *part, *prev, *item;
2583		2326
2584	if(!asrc) return NULL;	2327	if (!asrc)
		2328	return 0;
		2329
2585	src = asrc;	2330	src = asrc;
2586	if(src->head)	2331	if (src->head)
2587	src = src->head;	2332	src = src->head;
2588		2333
2589	prev = NULL;	2334	prev = 0;
2590	for(part = src; part; part = part->more) {	2335	for (part = src; part; part = part->more)
2591	tmp = get_object();	2336	{
2592	copy_object(part,tmp);	2337	tmp = part->clone ();
2593	tmp->x -= src->x;	2338	tmp->x -= src->x;
2594	tmp->y -= src->y;	2339	tmp->y -= src->y;
		2340
2595	if(!part->head) {	2341	if (!part->head)
		2342	{
2596	dst = tmp;	2343	dst = tmp;
2597	tmp->head = NULL;	2344	tmp->head = 0;
		2345	}
2598	} else {	2346	else
2599	tmp->head = dst;	2347	tmp->head = dst;
2600	}	2348
2601	tmp->more = NULL;	2349	tmp->more = 0;
		2350
2602	if(prev)	2351	if (prev)
2603	prev->more = tmp;	2352	prev->more = tmp;
		2353
2604	prev = tmp;	2354	prev = tmp;
2605	}	2355	}
2606	/*** copy inventory ***/	2356
2607	for(item = src->inv; item; item = item->below) {	2357	for (item = src->inv; item; item = item->below)
2608	(void) insert_ob_in_ob(object_create_clone(item),dst);	2358	insert_ob_in_ob (object_create_clone (item), dst);
2609	}
2610		2359
2611	return dst;	2360	return dst;
2612	}
2613
2614	/* return true if the object was destroyed, 0 otherwise */
2615	int was_destroyed (const object *op, tag_t old_tag)
2616	{
2617	/* checking for FLAG_FREED isn't necessary, but makes this function more
2618	* robust */
2619	return op->count != old_tag || QUERY_FLAG (op, FLAG_FREED);
2620	}	2361	}
2621		2362
2622	/* GROS - Creates an object using a string representing its content. */	2363	/* GROS - Creates an object using a string representing its content. */
2623	/* Basically, we save the content of the string to a temp file, then call */	2364	/* Basically, we save the content of the string to a temp file, then call */
2624	/* load_object on it. I admit it is a highly inefficient way to make things, */	2365	/* load_object on it. I admit it is a highly inefficient way to make things, */
2625	/* but it was simple to make and allows reusing the load_object function. */	2366	/* but it was simple to make and allows reusing the load_object function. */
2626	/* Remember not to use load_object_str in a time-critical situation. */	2367	/* Remember not to use load_object_str in a time-critical situation. */
2627	/* Also remember that multiparts objects are not supported for now. */	2368	/* Also remember that multiparts objects are not supported for now. */
2628		2369	object *
2629	object* load_object_str(const char *obstr)	2370	load_object_str (const char *obstr)
2630	{	2371	{
2631	object *op;	2372	object *op;
2632	FILE *tempfile;
2633	char filename[MAX_BUF];	2373	char filename[MAX_BUF];
		2374
2634	sprintf(filename,"%s/cfloadobstr2044",settings.tmpdir);	2375	sprintf (filename, "%s/cfloadobstr2044", settings.tmpdir);
		2376
2635	tempfile=fopen(filename,"w");	2377	FILE *tempfile = fopen (filename, "w");
		2378
2636	if (tempfile == NULL)	2379	if (tempfile == NULL)
2637	{	2380	{
2638	LOG(llevError,"Error - Unable to access load object temp file\n");	2381	LOG (llevError, "Error - Unable to access load object temp file\n");
2639	return NULL;	2382	return NULL;
2640	};	2383	}
		2384
2641	fprintf(tempfile,obstr);	2385	fprintf (tempfile, obstr);
2642	fclose(tempfile);	2386	fclose (tempfile);
2643		2387
2644	op=get_object();	2388	op = object::create ();
2645		2389
2646	tempfile=fopen(filename,"r");	2390	object_thawer thawer (filename);
2647	if (tempfile == NULL)	2391
2648	{	2392	if (thawer)
2649	LOG(llevError,"Error - Unable to read object temp file\n");	2393	load_object (thawer, op, 0);
2650	return NULL;	2394
2651	};
2652	load_object(tempfile,op,LO_NEWFILE,0);
2653	LOG(llevDebug," load str completed, object=%s\n",op->name);	2395	LOG (llevDebug, " load str completed, object=%s\n", &op->name);
2654	CLEAR_FLAG(op,FLAG_REMOVED);	2396	CLEAR_FLAG (op, FLAG_REMOVED);
2655	fclose(tempfile);	2397
2656	return op;	2398	return op;
2657	}	2399	}
2658		2400
2659	/* This returns the first object in who's inventory that	2401	/* This returns the first object in who's inventory that
2660	* has the same type and subtype match.	2402	* has the same type and subtype match.
2661	* returns NULL if no match.	2403	* returns NULL if no match.
2662	*/	2404	*/
		2405	object *
2663	object *find_obj_by_type_subtype(const object *who, int type, int subtype)	2406	find_obj_by_type_subtype (const object *who, int type, int subtype)
2664	{	2407	{
2665	object *tmp;
2666
2667	for (tmp=who->inv; tmp; tmp=tmp->below)	2408	for (object *tmp = who->inv; tmp; tmp = tmp->below)
2668	if (tmp->type == type && tmp->subtype == subtype) return tmp;	2409	if (tmp->type == type && tmp->subtype == subtype)
		2410	return tmp;
2669		2411
2670	return NULL;	2412	return 0;
2671	}	2413	}
2672		2414
2673	/* If ob has a field named key, return the link from the list,	2415	/* If ob has a field named key, return the link from the list,
2674	* otherwise return NULL.	2416	* otherwise return NULL.
2675	*	2417	*
2676	* key must be a passed in shared string - otherwise, this won't	2418	* key must be a passed in shared string - otherwise, this won't
2677	* do the desired thing.	2419	* do the desired thing.
2678	*/	2420	*/
		2421	key_value *
2679	key_value * get_ob_key_link(const object * ob, const char * key) {	2422	get_ob_key_link (const object *ob, const char *key)
2680	key_value * link;	2423	{
2681
2682	for (link = ob->key_values; link != NULL; link = link->next) {	2424	for (key_value *link = ob->key_values; link; link = link->next)
2683	if (link->key == key) {	2425	if (link->key == key)
2684	return link;	2426	return link;
2685	}	2427
2686	}	2428	return 0;
2687		2429	}
2688	return NULL;
2689	}
2690		2430
2691	/*	2431	/*
2692	* Returns the value of op has an extra_field for key, or NULL.	2432	* Returns the value of op has an extra_field for key, or NULL.
2693	*	2433	*
2694	* The argument doesn't need to be a shared string.	2434	* The argument doesn't need to be a shared string.
2695	*	2435	*
2696	* The returned string is shared.	2436	* The returned string is shared.
2697	*/	2437	*/
		2438	const char *
2698	const char * get_ob_key_value(const object * op, const char * const key) {	2439	get_ob_key_value (const object *op, const char *const key)
		2440	{
2699	key_value * link;	2441	key_value *link;
2700	const char * canonical_key;	2442	shstr_cmp canonical_key (key);
		2443
		2444	if (!canonical_key)
2701		2445	{
2702	canonical_key = find_string(key);
2703
2704	if (canonical_key == NULL) {
2705	/* 1. There being a field named key on any object	2446	/* 1. There being a field named key on any object
2706	* implies there'd be a shared string to find.	2447	* implies there'd be a shared string to find.
2707	* 2. Since there isn't, no object has this field.	2448	* 2. Since there isn't, no object has this field.
2708	* 3. Therefore, *this* object doesn't have this field.	2449	* 3. Therefore, *this* object doesn't have this field.
2709	*/	2450	*/
2710	return NULL;	2451	return 0;
2711	}	2452	}
2712		2453
2713	/* This is copied from get_ob_key_link() above -	2454	/* This is copied from get_ob_key_link() above -
2714	* only 4 lines, and saves the function call overhead.	2455	* only 4 lines, and saves the function call overhead.
2715	*/	2456	*/
2716	for (link = op->key_values; link != NULL; link = link->next) {	2457	for (link = op->key_values; link; link = link->next)
2717	if (link->key == canonical_key) {	2458	if (link->key == canonical_key)
2718	return link->value;	2459	return link->value;
2719	}	2460
2720	}	2461	return 0;
2721	return NULL;
2722	}	2462	}
2723		2463
2724		2464
2725	/*	2465	/*
2726	* Updates the canonical_key in op to value.	2466	* Updates the canonical_key in op to value.
…		…
2730	* Unless add_key is TRUE, it won't add fields, only change the value of existing	2470	* Unless add_key is TRUE, it won't add fields, only change the value of existing
2731	* keys.	2471	* keys.
2732	*	2472	*
2733	* Returns TRUE on success.	2473	* Returns TRUE on success.
2734	*/	2474	*/
		2475	int
2735	int set_ob_key_value_s(object * op, const char * canonical_key, const char * value, int add_key) {	2476	set_ob_key_value_s (object *op, const shstr & canonical_key, const char *value, int add_key)
		2477	{
2736	key_value * field = NULL, *last=NULL;	2478	key_value *field = NULL, *last = NULL;
2737		2479
2738	for (field=op->key_values; field != NULL; field=field->next) {	2480	for (field = op->key_values; field != NULL; field = field->next)
2739	if (field->key != canonical_key) {
2740	last = field;
2741	continue;
2742	}
2743		2481	{
2744	if (field->value) FREE_AND_CLEAR_STR(field->value);	2482	if (field->key != canonical_key)
2745	if (value)	2483	{
2746	field->value = add_string(value);	2484	last = field;
2747	else {	2485	continue;
		2486	}
		2487
		2488	if (value)
		2489	field->value = value;
		2490	else
		2491	{
2748	/* Basically, if the archetype has this key set,	2492	/* Basically, if the archetype has this key set,
2749	* we need to store the null value so when we save	2493	* we need to store the null value so when we save
2750	* it, we save the empty value so that when we load,	2494	* it, we save the empty value so that when we load,
2751	* we get this value back again.	2495	* we get this value back again.
2752	*/	2496	*/
2753	if (get_ob_key_link(&op->arch->clone, canonical_key))	2497	if (get_ob_key_link (&op->arch->clone, canonical_key))
2754	field->value = NULL;	2498	field->value = 0;
2755	else {	2499	else
2756	/* Delete this link */	2500	{
2757	if (field->key) FREE_AND_CLEAR_STR(field->key);	2501	if (last)
2758	if (field->value) FREE_AND_CLEAR_STR(field->value);	2502	last->next = field->next;
2759	if (last) last->next = field->next;	2503	else
2760	else op->key_values = field->next;	2504	op->key_values = field->next;
2761	free(field);	2505
2762	}	2506	delete field;
2763	}	2507	}
		2508	}
2764	return TRUE;	2509	return TRUE;
2765	}	2510	}
2766	/* IF we get here, key doesn't exist */	2511	/* IF we get here, key doesn't exist */
2767		2512
2768	/* No field, we'll have to add it. */	2513	/* No field, we'll have to add it. */
2769		2514
2770	if (!add_key) {	2515	if (!add_key)
2771	return FALSE;	2516	return FALSE;
2772	}	2517
2773	/* There isn't any good reason to store a null	2518	/* There isn't any good reason to store a null
2774	* value in the key/value list. If the archetype has	2519	* value in the key/value list. If the archetype has
2775	* this key, then we should also have it, so shouldn't	2520	* this key, then we should also have it, so shouldn't
2776	* be here. If user wants to store empty strings,	2521	* be here. If user wants to store empty strings,
2777	* should pass in ""	2522	* should pass in ""
2778	*/	2523	*/
2779	if (value == NULL) return TRUE;	2524	if (value == NULL)
2780
2781	field = (key_value *) malloc(sizeof(key_value));
2782
2783	field->key = add_refcount(canonical_key);
2784	field->value = add_string(value);
2785	/* Usual prepend-addition. */
2786	field->next = op->key_values;
2787	op->key_values = field;
2788
2789	return TRUE;	2525	return TRUE;
		2526
		2527	field = new key_value;
		2528
		2529	field->key = canonical_key;
		2530	field->value = value;
		2531	/* Usual prepend-addition. */
		2532	field->next = op->key_values;
		2533	op->key_values = field;
		2534
		2535	return TRUE;
2790	}	2536	}
2791		2537
2792	/*	2538	/*
2793	* Updates the key in op to value.	2539	* Updates the key in op to value.
2794	*	2540	*
…		…
2796	* and not add new ones.	2542	* and not add new ones.
2797	* In general, should be little reason FALSE is ever passed in for add_key	2543	* In general, should be little reason FALSE is ever passed in for add_key
2798	*	2544	*
2799	* Returns TRUE on success.	2545	* Returns TRUE on success.
2800	*/	2546	*/
		2547	int
2801	int set_ob_key_value(object * op, const char * key, const char * value, int add_key) {	2548	set_ob_key_value (object *op, const char *key, const char *value, int add_key)
2802	const char * canonical_key = NULL;	2549	{
2803	int floating_ref = FALSE;	2550	shstr key_ (key);
2804	int ret;	2551
		2552	return set_ob_key_value_s (op, key_, value, add_key);
		2553	}
		2554
		2555	object::depth_iterator::depth_iterator (object *container)
		2556	: iterator_base (container)
		2557	{
		2558	while (item->inv)
		2559	item = item->inv;
		2560	}
		2561
		2562	void
		2563	object::depth_iterator::next ()
		2564	{
		2565	if (item->below)
2805		2566	{
2806	/* HACK This mess is to make sure set_ob_value() passes a shared string	2567	item = item->below;
2807	* to get_ob_key_link(), without leaving a leaked refcount.	2568
2808	*/	2569	while (item->inv)
		2570	item = item->inv;
2809		2571	}
2810	canonical_key = find_string(key);	2572	else
2811	if (canonical_key == NULL) {	2573	item = item->env;
2812	canonical_key = add_string(key);	2574	}
2813	floating_ref = TRUE;	2575
2814	}	2576
		2577	const char *
		2578	object::flag_desc (char *desc, int len) const
		2579	{
		2580	char *p = desc;
		2581	bool first = true;
		2582
		2583	*p = 0;
		2584
		2585	for (int i = 0; i < NUM_FLAGS; i++)
2815		2586	{
2816	ret = set_ob_key_value_s(op, canonical_key, value, add_key);	2587	if (len <= 10) // magic constant!
		2588	{
		2589	snprintf (p, len, ",...");
		2590	break;
		2591	}
		2592
		2593	if (flag [i])
		2594	{
		2595	int cnt = snprintf (p, len, "%s%d", first ? "" : ",", i);
		2596	len -= cnt;
		2597	p += cnt;
		2598	first = false;
		2599	}
2817		2600	}
2818	if (floating_ref) {	2601
2819	free_string(canonical_key);
2820	}
2821
2822	return ret;	2602	return desc;
2823	}	2603	}
		2604
		2605	// return a suitable string describing an object in enough detail to find it
		2606	const char *
		2607	object::debug_desc (char *info) const
		2608	{
		2609	char flagdesc[512];
		2610	char info2[256 * 4];
		2611	char *p = info;
		2612
		2613	p += snprintf (p, 512, "{cnt:%d,uuid:<1,%" PRIx64 ">,name:\"%s%s%s\",flags:[%s],type:%d}",
		2614	count, uuid.seq,
		2615	&name,
		2616	title ? "\",title:" : "",
		2617	title ? (const char *)title : "",
		2618	flag_desc (flagdesc, 512), type);
		2619
		2620	if (env)
		2621	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));
		2622
		2623	if (map)
		2624	p += snprintf (p, 256, "(on %s@%d+%d)", &map->path, x, y);
		2625
		2626	return info;
		2627	}
		2628
		2629	const char *
		2630	object::debug_desc () const
		2631	{
		2632	static char info[256 * 4];
		2633	return debug_desc (info);
		2634	}
		2635

Diff Legend

–	Removed lines
+	Added lines
<	Changed lines
>	Changed lines