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

Comparing deliantra/server/common/object.C (file contents):
Revision 1.4 by root, Sat Aug 26 23:36:30 2006 UTC vs.
Revision 1.96 by root, Sat Dec 30 10:16:10 2006 UTC

1	/*
2	* static char *rcsid_object_c =
3	* "$Id: object.C,v 1.4 2006/08/26 23:36:30 root Exp $";
4	*/
5
6	/*	1	/*
7	CrossFire, A Multiplayer game for X-windows	2	CrossFire, A Multiplayer game for X-windows
8		3
9	Copyright (C) 2001 Mark Wedel & Crossfire Development Team	4	Copyright (C) 2001 Mark Wedel & Crossfire Development Team
10	Copyright (C) 1992 Frank Tore Johansen	5	Copyright (C) 1992 Frank Tore Johansen
…		…
21		16
22	You should have received a copy of the GNU General Public License	17	You should have received a copy of the GNU General Public License
23	along with this program; if not, write to the Free Software	18	along with this program; if not, write to the Free Software
24	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.	19	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
25		20
26	The authors can be reached via e-mail at crossfire-devel@real-time.com	21	The authors can be reached via e-mail at <crossfire@schmorp.de>
27	*/	22	*/
28		23
29	/* Eneq(@csd.uu.se): Added weight-modifiers in environment of objects.	24	/* Eneq(@csd.uu.se): Added weight-modifiers in environment of objects.
30	sub/add_weight will transcend the environment updating the carrying	25	sub/add_weight will transcend the environment updating the carrying
31	variable. */	26	variable. */
32	#include <global.h>	27	#include <global.h>
33	#ifndef WIN32 /* ---win32 exclude headers */
34	#include <stdio.h>	28	#include <stdio.h>
35	#include <sys/types.h>	29	#include <sys/types.h>
36	#include <sys/uio.h>	30	#include <sys/uio.h>
37	#endif /* win32 */
38	#include <object.h>	31	#include <object.h>
39	#include <funcpoint.h>	32	#include <funcpoint.h>
40	#include <skills.h>
41	#include <loader.h>	33	#include <loader.h>
42	#ifdef MEMORY_DEBUG	34
43	int nroffreeobjects = 0;	35	#include <bitset>
		36
44	int nrofallocobjects = 0;	37	int nrofallocobjects = 0;
45	#undef OBJ_EXPAND	38	static UUID uuid;
46	#define OBJ_EXPAND 1	39	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		40
53	object *objects; /* Pointer to the list of used objects */
54	object *free_objects; /* Pointer to the list of unused objects */
55	object *active_objects; /* List of active objects that need to be processed */	41	object *active_objects; /* List of active objects that need to be processed */
56		42
57	short freearr_x[SIZEOFFREE]=	43	short freearr_x[SIZEOFFREE] = { 0, 0, 1, 1, 1, 0, -1, -1, -1, 0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2, -2, -2, -2, -1,
58	{0,0,1,1,1,0,-1,-1,-1,0,1,2,2,2,2,2,1,0,-1,-2,-2,-2,-2,-2,-1,
59	0,1,2,3,3,3,3,3,3,3,2,1,0,-1,-2,-3,-3,-3,-3,-3,-3,-3,-2,-1};	44	0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3, -3, -3, -3, -3, -2, -1
60	short freearr_y[SIZEOFFREE]=	45	};
61	{0,-1,-1,0,1,1,1,0,-1,-2,-2,-2,-1,0,1,2,2,2,2,2,1,0,-1,-2,-2,	46	short freearr_y[SIZEOFFREE] = { 0, -1, -1, 0, 1, 1, 1, 0, -1, -2, -2, -2, -1, 0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2,
62	-3,-3,-3,-3,-2,-1,0,1,2,3,3,3,3,3,3,3,2,1,0,-1,-2,-3,-3,-3};	47	-3, -3, -3, -3, -2, -1, 0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3
63	int maxfree[SIZEOFFREE]=	48	};
64	{0,9,10,13,14,17,18,21,22,25,26,27,30,31,32,33,36,37,39,39,42,43,44,45,	49	int maxfree[SIZEOFFREE] = { 0, 9, 10, 13, 14, 17, 18, 21, 22, 25, 26, 27, 30, 31, 32, 33, 36, 37, 39, 39, 42, 43, 44, 45,
65	48,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49};	50	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
		51	};
66	int freedir[SIZEOFFREE]= {	52	int freedir[SIZEOFFREE] = {
67	0,1,2,3,4,5,6,7,8,1,2,2,2,3,4,4,4,5,6,6,6,7,8,8,8,	53	0, 1, 2, 3, 4, 5, 6, 7, 8, 1, 2, 2, 2, 3, 4, 4, 4, 5, 6, 6, 6, 7, 8, 8, 8,
68	1,2,2,2,2,2,3,4,4,4,4,4,5,6,6,6,6,6,7,8,8,8,8,8};	54	1, 2, 2, 2, 2, 2, 3, 4, 4, 4, 4, 4, 5, 6, 6, 6, 6, 6, 7, 8, 8, 8, 8, 8
		55	};
69		56
		57	static void
		58	write_uuid (void)
		59	{
		60	char filename1[MAX_BUF], filename2[MAX_BUF];
		61
		62	sprintf (filename1, "%s/uuid", settings.localdir);
		63	sprintf (filename2, "%s/uuid~", settings.localdir);
		64
		65	FILE *fp;
		66
		67	if (!(fp = fopen (filename2, "w")))
		68	{
		69	LOG (llevError, "ERROR: cannot open %s for writing, unable to write UUID!\n", filename2);
		70	return;
		71	}
		72
		73	fprintf (fp, "<1,%llx>\n", (unsigned long long)uuid.seq + UUID_SKIP * 2);
		74	fclose (fp);
		75	rename (filename2, filename1);
		76	}
		77
		78	static void
		79	read_uuid (void)
		80	{
		81	char filename[MAX_BUF];
		82
		83	sprintf (filename, "%s/uuid", settings.localdir);
		84
		85	FILE *fp;
		86
		87	if (!(fp = fopen (filename, "r")))
		88	{
		89	if (errno == ENOENT)
		90	{
		91	LOG (llevInfo, "RESET uid to 1\n");
		92	uuid.seq = 0;
		93	write_uuid ();
		94	return;
		95	}
		96
		97	LOG (llevError, "FATAL: cannot open %s for reading!\n", filename);
		98	_exit (1);
		99	}
		100
		101	int version;
		102	unsigned long long uid;
		103	if (2 != fscanf (fp, "<%d,%llx>\n", &version, &uid) || version != 1)
		104	{
		105	LOG (llevError, "FATAL: error reading uid from %s!\n", filename);
		106	_exit (1);
		107	}
		108
		109	uuid.seq = uid;
		110	write_uuid ();
		111	LOG (llevDebug, "read UID: %" PRId64 "\n", uid);
		112	fclose (fp);
		113	}
		114
		115	UUID
		116	gen_uuid ()
		117	{
		118	UUID uid;
		119
		120	uid.seq = ++uuid.seq;
		121
		122	if (!(uuid.seq & (UUID_SKIP - 1)))
		123	write_uuid ();
		124
		125	return uid;
		126	}
		127
		128	void
		129	init_uuid ()
		130	{
		131	read_uuid ();
		132	}
70		133
71	/* Returns TRUE if every key_values in wants has a partner with the same value in has. */	134	/* Returns TRUE if every key_values in wants has a partner with the same value in has. */
		135	static int
72	static int compare_ob_value_lists_one(const object * wants, const object * has) {	136	compare_ob_value_lists_one (const object *wants, const object *has)
		137	{
73	key_value * wants_field;	138	key_value *wants_field;
74		139
75	/* n-squared behaviour (see get_ob_key_link()), but I'm hoping both	140	/* n-squared behaviour (see get_ob_key_link()), but I'm hoping both
76	* objects with lists are rare, and lists stay short. If not, use a	141	* objects with lists are rare, and lists stay short. If not, use a
77	* different structure or at least keep the lists sorted...	142	* different structure or at least keep the lists sorted...
78	*/	143	*/
79		144
80	/* For each field in wants, */	145	/* For each field in wants, */
81	for (wants_field = wants->key_values; wants_field != NULL; wants_field = wants_field->next) {	146	for (wants_field = wants->key_values; wants_field; wants_field = wants_field->next)
		147	{
82	key_value * has_field;	148	key_value *has_field;
83		149
84	/* Look for a field in has with the same key. */	150	/* Look for a field in has with the same key. */
85	has_field = get_ob_key_link(has, wants_field->key);	151	has_field = get_ob_key_link (has, wants_field->key);
		152
		153	if (has_field == NULL)
86		154	{
87	if (has_field == NULL) {
88	/* No field with that name. */	155	/* No field with that name. */
89	return FALSE;	156	return FALSE;
90	}
91		157	}
		158
92	/* Found the matching field. */	159	/* Found the matching field. */
93	if (has_field->value != wants_field->value) {	160	if (has_field->value != wants_field->value)
		161	{
94	/* Values don't match, so this half of the comparison is false. */	162	/* Values don't match, so this half of the comparison is false. */
95	return FALSE;	163	return FALSE;
96	}	164	}
97		165
98	/* If we get here, we found a match. Now for the next field in wants. */	166	/* If we get here, we found a match. Now for the next field in wants. */
99	}
100		167	}
		168
101	/* If we get here, every field in wants has a matching field in has. */	169	/* If we get here, every field in wants has a matching field in has. */
102	return TRUE;	170	return TRUE;
103	}	171	}
104		172
105	/* Returns TRUE if ob1 has the same key_values as ob2. */	173	/* Returns TRUE if ob1 has the same key_values as ob2. */
		174	static int
106	static int compare_ob_value_lists(const object * ob1, const object * ob2) {	175	compare_ob_value_lists (const object *ob1, const object *ob2)
		176	{
107	/* However, there may be fields in has which aren't partnered in wants,	177	/* However, there may be fields in has which aren't partnered in wants,
108	* so we need to run the comparison *twice*. :(	178	* so we need to run the comparison *twice*. :(
109	*/	179	*/
110	return compare_ob_value_lists_one(ob1, ob2) && compare_ob_value_lists_one(ob2, ob1);	180	return compare_ob_value_lists_one (ob1, ob2) && compare_ob_value_lists_one (ob2, ob1);
111	}	181	}
112		182
113	/* Function examines the 2 objects given to it, and returns true if	183	/* Function examines the 2 objects given to it, and returns true if
114	* they can be merged together.	184	* they can be merged together.
115	*	185	*
116	* Note that this function appears a lot longer than the macro it	186	* Note that this function appears a lot longer than the macro it
117	* replaces - this is mostly for clarity - a decent compiler should hopefully	187	* replaces - this is mostly for clarity - a decent compiler should hopefully
118	* reduce this to the same efficiency.	188	* reduce this to the same efficiency.
119	*	189	*
120	* Check nrof variable *before* calling CAN_MERGE()	190	* Check nrof variable *before* calling can_merge()
121	*	191	*
122	* Improvements made with merge: Better checking on potion, and also	192	* Improvements made with merge: Better checking on potion, and also
123	* check weight	193	* check weight
124	*/	194	*/
125		195	bool object::can_merge_slow (object *ob1, object *ob2)
126	int CAN_MERGE(object *ob1, object *ob2) {	196	{
127
128	/* A couple quicksanity checks */	197	/* A couple quicksanity checks */
129	if ((ob1 == ob2) || (ob1->type != ob2->type)) return 0;	198	if (ob1 == ob2
130		199	|| ob1->type != ob2->type
131	if (ob1->speed != ob2->speed) return 0;	200	|| ob1->speed != ob2->speed
132	/* Note sure why the following is the case - either the object has to	201	|| ob1->value != ob2->value
133	* be animated or have a very low speed. Is this an attempted monster	202	|| ob1->name != ob2->name)
134	* check?
135	*/
136	if (!QUERY_FLAG(ob1,FLAG_ANIMATE) && FABS((ob1)->speed) > MIN_ACTIVE_SPEED)
137	return 0;	203	return 0;
138		204
		205	//TODO: this ain't working well, use nicer and correct overflow check
139	/* Do not merge objects if nrof would overflow. We use 1UL<<31 since that	206	/* Do not merge objects if nrof would overflow. We use 1UL<<31 since that
140	* value could not be stored in a sint32 (which unfortunately sometimes is	207	* value could not be stored in a sint32 (which unfortunately sometimes is
141	* used to store nrof).	208	* used to store nrof).
142	*/	209	*/
143	if (ob1->nrof+ob2->nrof >= 1UL<<31)	210	if (ob1->nrof + ob2->nrof >= 1UL << 31)
144	return 0;	211	return 0;
145		212
146	/* This is really a spellbook check - really, we should
147	* check all objects in the inventory.
148	*/
149	if (ob1->inv || ob2->inv) {
150	/* if one object has inventory but the other doesn't, not equiv */
151	if ((ob1->inv && !ob2->inv) || (ob2->inv && !ob1->inv)) return 0;
152
153	/* Now check to see if the two inventory objects could merge */
154	if (!CAN_MERGE(ob1->inv, ob2->inv)) return 0;
155
156	/* inventory ok - still need to check rest of this object to see
157	* if it is valid.
158	*/
159	}
160
161	/* If the objects have been identified, set the BEEN_APPLIED flag.	213	/* If the objects have been identified, set the BEEN_APPLIED flag.
162	* This is to the comparison of the flags below will be OK. We	214	* This is to the comparison of the flags below will be OK. We
163	* just can't ignore the been applied or identified flags, as they	215	* just can't ignore the been applied or identified flags, as they
164	* are not equal - just if it has been identified, the been_applied	216	* are not equal - just if it has been identified, the been_applied
165	* flags lose any meaning.	217	* flags lose any meaning.
166	*/	218	*/
167	if (QUERY_FLAG(ob1, FLAG_IDENTIFIED))	219	if (QUERY_FLAG (ob1, FLAG_IDENTIFIED))
168	SET_FLAG(ob1, FLAG_BEEN_APPLIED);	220	SET_FLAG (ob1, FLAG_BEEN_APPLIED);
169		221
170	if (QUERY_FLAG(ob2, FLAG_IDENTIFIED))	222	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))
171	SET_FLAG(ob2, FLAG_BEEN_APPLIED);	223	SET_FLAG (ob2, FLAG_BEEN_APPLIED);
172		224
173		225	if ((ob1->flag ^ ob2->flag).reset (FLAG_INV_LOCKED).reset (FLAG_CLIENT_SENT).any ()
174	/* the 0x400000 on flags2 is FLAG_INV_LOCK. I don't think something	226	|| ob1->arch != ob2->arch
175	* being locked in inventory should prevent merging.	227	|| ob1->name != ob2->name
176	* 0x4 in flags3 is CLIENT_SENT	228	|| ob1->title != ob2->title
177	*/	229	|| ob1->msg != ob2->msg
178	if ((ob1->arch != ob2->arch) ||	230	|| ob1->weight != ob2->weight
179	(ob1->flags[0] != ob2->flags[0]) ||
180	(ob1->flags[1] != ob2->flags[1]) ||
181	((ob1->flags[2] & ~0x400000) != (ob2->flags[2] & ~ 0x400000)) ||
182	((ob1->flags[3] & ~0x4) != (ob2->flags[3] & ~0x4)) ||
183	(ob1->name != ob2->name) ||
184	(ob1->title != ob2->title) ||
185	(ob1->msg != ob2->msg) ||
186	(ob1->weight != ob2->weight) ||
187	(memcmp(&ob1->resist, &ob2->resist, sizeof(ob1->resist))!=0) ||	231	|| memcmp (&ob1->resist, &ob2->resist, sizeof (ob1->resist))
188	(memcmp(&ob1->stats, &ob2->stats, sizeof(ob1->stats))!=0) ||	232	|| memcmp (&ob1->stats , &ob2->stats , sizeof (ob1->stats) )
189	(ob1->attacktype != ob2->attacktype) ||	233	|| ob1->attacktype != ob2->attacktype
190	(ob1->magic != ob2->magic) ||	234	|| ob1->magic != ob2->magic
191	(ob1->slaying != ob2->slaying) ||	235	|| ob1->slaying != ob2->slaying
192	(ob1->skill != ob2->skill) ||	236	|| ob1->skill != ob2->skill
193	(ob1->value != ob2->value) ||	237	|| ob1->value != ob2->value
194	(ob1->animation_id != ob2->animation_id) ||	238	|| ob1->animation_id != ob2->animation_id
195	(ob1->client_type != ob2->client_type) ||	239	|| ob1->client_type != ob2->client_type
196	(ob1->materialname != ob2->materialname) ||	240	|| ob1->materialname != ob2->materialname
197	(ob1->lore != ob2->lore) ||	241	|| ob1->lore != ob2->lore
198	(ob1->subtype != ob2->subtype) ||	242	|| ob1->subtype != ob2->subtype
199	(ob1->move_type != ob2->move_type) ||	243	|| ob1->move_type != ob2->move_type
200	(ob1->move_block != ob2->move_block) ||	244	|| ob1->move_block != ob2->move_block
201	(ob1->move_allow != ob2->move_allow) ||	245	|| ob1->move_allow != ob2->move_allow
202	(ob1->move_on != ob2->move_on) ||	246	|| ob1->move_on != ob2->move_on
203	(ob1->move_off != ob2->move_off) ||	247	|| ob1->move_off != ob2->move_off
204	(ob1->move_slow != ob2->move_slow) ||	248	|| ob1->move_slow != ob2->move_slow
205	(ob1->move_slow_penalty != ob2->move_slow_penalty)	249	|| ob1->move_slow_penalty != ob2->move_slow_penalty)
206	)
207	return 0;	250	return 0;
208		251
		252	/* This is really a spellbook check - really, we should
		253	* check all objects in the inventory.
		254	*/
		255	if (ob1->inv || ob2->inv)
		256	{
		257	/* if one object has inventory but the other doesn't, not equiv */
		258	if ((ob1->inv && !ob2->inv) || (ob2->inv && !ob1->inv))
		259	return 0;
		260
		261	/* Now check to see if the two inventory objects could merge */
		262	if (!object::can_merge (ob1->inv, ob2->inv))
		263	return 0;
		264
		265	/* inventory ok - still need to check rest of this object to see
		266	* if it is valid.
		267	*/
		268	}
		269
209	/* Don't merge objects that are applied. With the new 'body' code,	270	/* Don't merge objects that are applied. With the new 'body' code,
210	* it is possible for most any character to have more than one of	271	* it is possible for most any character to have more than one of
211	* some items equipped, and we don't want those to merge.	272	* some items equipped, and we don't want those to merge.
212	*/	273	*/
213	if (QUERY_FLAG(ob1, FLAG_APPLIED) || QUERY_FLAG(ob2, FLAG_APPLIED))	274	if (QUERY_FLAG (ob1, FLAG_APPLIED) || QUERY_FLAG (ob2, FLAG_APPLIED))
214	return 0;	275	return 0;
215		276
		277	/* Note sure why the following is the case - either the object has to
		278	* be animated or have a very low speed. Is this an attempted monster
		279	* check?
		280	*/
		281	if (!QUERY_FLAG (ob1, FLAG_ANIMATE) && FABS ((ob1)->speed) > MIN_ACTIVE_SPEED)
		282	return 0;
		283
216	switch (ob1->type) {	284	switch (ob1->type)
		285	{
217	case SCROLL:	286	case SCROLL:
218	if (ob1->level != ob2->level) return 0;	287	if (ob1->level != ob2->level)
		288	return 0;
219	break;	289	break;
220
221	}	290	}
		291
222	if (ob1->key_values != NULL || ob2->key_values != NULL) {	292	if (ob1->key_values != NULL || ob2->key_values != NULL)
		293	{
223	/* At least one of these has key_values. */	294	/* At least one of these has key_values. */
224	if ((ob1->key_values == NULL) != (ob2->key_values == NULL)) {	295	if ((ob1->key_values == NULL) != (ob2->key_values == NULL))
225	/* One has fields, but the other one doesn't. */	296	/* One has fields, but the other one doesn't. */
226	return 0;	297	return 0;
227	} else if (!compare_ob_value_lists(ob1, ob2)) {	298	else if (!compare_ob_value_lists (ob1, ob2))
228	return 0;	299	return 0;
229	}	300	}
		301
		302	//TODO: generate an event or call into perl for additional checks
		303	if (ob1->self || ob2->self)
230	}	304	{
		305	ob1->optimise ();
		306	ob2->optimise ();
231		307
		308	if (ob1->self || ob2->self)
		309	return 0;
		310	}
		311
232	/* Everything passes, must be OK. */	312	/* Everything passes, must be OK. */
233	return 1;	313	return 1;
234	}	314	}
235		315
236	/*	316	/*
237	* sum_weight() is a recursive function which calculates the weight	317	* sum_weight() is a recursive function which calculates the weight
238	* an object is carrying. It goes through in figures out how much	318	* an object is carrying. It goes through in figures out how much
239	* containers are carrying, and sums it up.	319	* containers are carrying, and sums it up.
240	*/	320	*/
241	signed long sum_weight(object *op) {	321	long
		322	sum_weight (object *op)
		323	{
242	signed long sum;	324	long sum;
243	object *inv;	325	object *inv;
		326
244	for(sum = 0, inv = op->inv; inv != NULL; inv = inv->below) {	327	for (sum = 0, inv = op->inv; inv != NULL; inv = inv->below)
		328	{
245	if (inv->inv)	329	if (inv->inv)
246	sum_weight(inv);	330	sum_weight (inv);
247	sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1);	331	sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1);
248	}	332	}
		333
249	if (op->type == CONTAINER && op->stats.Str)	334	if (op->type == CONTAINER && op->stats.Str)
250	sum = (sum * (100 - op->stats.Str))/100;	335	sum = (sum * (100 - op->stats.Str)) / 100;
		336
251	if(op->carrying != sum)	337	if (op->carrying != sum)
252	op->carrying = sum;	338	op->carrying = sum;
		339
253	return sum;	340	return sum;
254	}	341	}
255		342
256	/**	343	/**
257	* Return the outermost environment object for a given object.	344	* Return the outermost environment object for a given object.
258	*/	345	*/
259		346
		347	object *
260	object *object_get_env_recursive (object *op) {	348	object_get_env_recursive (object *op)
		349	{
261	while (op->env != NULL)	350	while (op->env != NULL)
262	op = op->env;	351	op = op->env;
263	return op;	352	return op;
264	}
265
266	/*
267	* Eneq(@csd.uu.se): Since we can have items buried in a character we need
268	* a better check. We basically keeping traversing up until we can't
269	* or find a player.
270	*/
271
272	object *is_player_inv (object *op) {
273	for (;op!=NULL&&op->type!=PLAYER; op=op->env)
274	if (op->env==op)
275	op->env = NULL;
276	return op;
277	}	353	}
278		354
279	/*	355	/*
280	* Used by: Crossedit: dump. Server DM commands: dumpbelow, dump.	356	* Used by: Crossedit: dump. Server DM commands: dumpbelow, dump.
281	* Some error messages.	357	* Some error messages.
282	* The result of the dump is stored in the static global errmsg array.	358	* The result of the dump is stored in the static global errmsg array.
283	*/	359	*/
284		360
285	void dump_object2(object *op) {	361	char *
286	char *cp;
287	/* object *tmp;*/
288
289	if(op->arch!=NULL) {
290	strcat(errmsg,"arch ");
291	strcat(errmsg,op->arch->name?op->arch->name:"(null)");
292	strcat(errmsg,"\n");
293	if((cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)
294	strcat(errmsg,cp);
295	#if 0
296	/* Don't dump player diffs - they are too long, mostly meaningless, and
297	* will overflow the buffer.
298	* Changed so that we don't dump inventory either. This may
299	* also overflow the buffer.
300	*/
301	if(op->type!=PLAYER && (cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)
302	strcat(errmsg,cp);
303	for (tmp=op->inv; tmp; tmp=tmp->below)
304	dump_object2(tmp);
305	#endif
306	strcat(errmsg,"end\n");
307	} else {
308	strcat(errmsg,"Object ");
309	if (op->name==NULL) strcat(errmsg, "(null)");
310	else strcat(errmsg,op->name);
311	strcat(errmsg,"\n");
312	#if 0
313	if((cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)
314	strcat(errmsg,cp);
315	for (tmp=op->inv; tmp; tmp=tmp->below)
316	dump_object2(tmp);
317	#endif
318	strcat(errmsg,"end\n");
319	}
320	}
321
322	/*
323	* Dumps an object. Returns output in the static global errmsg array.
324	*/
325
326	void dump_object(object *op) {	362	dump_object (object *op)
327	if(op==NULL) {
328	strcpy(errmsg,"[NULL pointer]");
329	return;
330	}
331	errmsg[0]='\0';
332	dump_object2(op);
333	}
334
335	/* GROS - Dumps an object. Return the result into a string */
336	/* Note that no checking is done for the validity of the target string, so */
337	/* you need to be sure that you allocated enough space for it. */
338	void dump_me(object *op, char *outstr)
339	{	363	{
340	char *cp;	364	if (!op)
		365	return strdup ("[NULLOBJ]");
341		366
342	if(op==NULL)	367	object_freezer freezer;
343	{	368	save_object (freezer, op, 1);
344	strcpy(outstr,"[NULL pointer]");	369	return freezer.as_string ();
345	return;
346	}
347	outstr[0]='\0';
348
349	if(op->arch!=NULL)
350	{
351	strcat(outstr,"arch ");
352	strcat(outstr,op->arch->name?op->arch->name:"(null)");
353	strcat(outstr,"\n");
354	if((cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)
355	strcat(outstr,cp);
356	strcat(outstr,"end\n");
357	}
358	else
359	{
360	strcat(outstr,"Object ");
361	if (op->name==NULL)
362	strcat(outstr, "(null)");
363	else
364	strcat(outstr,op->name);
365	strcat(outstr,"\n");
366	strcat(outstr,"end\n");
367	}
368	}
369
370	/*
371	* This is really verbose...Can be triggered by the P key while in DM mode.
372	* All objects are dumped to stderr (or alternate logfile, if in server-mode)
373	*/
374
375	void dump_all_objects(void) {
376	object *op;
377	for(op=objects;op!=NULL;op=op->next) {
378	dump_object(op);
379	fprintf(logfile, "Object %d\n:%s\n", op->count, errmsg);
380	}
381	}	370	}
382		371
383	/*	372	/*
384	* get_nearest_part(multi-object, object 2) returns the part of the	373	* get_nearest_part(multi-object, object 2) returns the part of the
385	* multi-object 1 which is closest to the second object.	374	* multi-object 1 which is closest to the second object.
386	* If it's not a multi-object, it is returned.	375	* If it's not a multi-object, it is returned.
387	*/	376	*/
388		377
		378	object *
389	object *get_nearest_part(object *op, const object *pl) {	379	get_nearest_part (object *op, const object *pl)
		380	{
390	object *tmp,*closest;	381	object *tmp, *closest;
391	int last_dist,i;	382	int last_dist, i;
		383
392	if(op->more==NULL)	384	if (op->more == NULL)
393	return op;	385	return op;
394	for(last_dist=distance(op,pl),closest=op,tmp=op->more;tmp!=NULL;tmp=tmp->more)	386	for (last_dist = distance (op, pl), closest = op, tmp = op->more; tmp != NULL; tmp = tmp->more)
395	if((i=distance(tmp,pl))<last_dist)	387	if ((i = distance (tmp, pl)) < last_dist)
396	closest=tmp,last_dist=i;	388	closest = tmp, last_dist = i;
397	return closest;	389	return closest;
398	}	390	}
399		391
400	/*	392	/*
401	* Returns the object which has the count-variable equal to the argument.	393	* Returns the object which has the count-variable equal to the argument.
402	*/	394	*/
403		395
		396	object *
404	object *find_object(tag_t i) {	397	find_object (tag_t i)
405	object *op;	398	{
406	for(op=objects;op!=NULL;op=op->next)	399	for (object *op = object::first; op; op = op->next)
407	if(op->count==i)	400	if (op->count == i)
408	break;	401	return op;
		402
409	return op;	403	return 0;
410	}	404	}
411		405
412	/*	406	/*
413	* Returns the first object which has a name equal to the argument.	407	* Returns the first object which has a name equal to the argument.
414	* Used only by the patch command, but not all that useful.	408	* Used only by the patch command, but not all that useful.
415	* Enables features like "patch <name-of-other-player> food 999"	409	* Enables features like "patch <name-of-other-player> food 999"
416	*/	410	*/
417		411
		412	object *
418	object *find_object_name(const char *str) {	413	find_object_name (const char *str)
419	const char *name=add_string(str);	414	{
		415	shstr_cmp str_ (str);
420	object *op;	416	object *op;
		417
421	for(op=objects;op!=NULL;op=op->next)	418	for (op = object::first; op != NULL; op = op->next)
422	if(op->name==name)	419	if (op->name == str_)
423	break;	420	break;
424	free_string(name);	421
425	return op;	422	return op;
426	}	423	}
427		424
		425	void
428	void free_all_object_data(void) {	426	free_all_object_data ()
429	#ifdef MEMORY_DEBUG
430	object *op, *next;
431
432	for (op=free_objects; op!=NULL; ) {
433	next=op->next;
434	free(op);
435	nrofallocobjects--;
436	nroffreeobjects--;
437	op=next;
438	}
439	#endif
440	LOG(llevDebug,"%d allocated objects, %d free objects, STARMAX=%d\n",
441	nrofallocobjects, nroffreeobjects,STARTMAX);
442	}
443
444	/*
445	* Returns the object which this object marks as being the owner.
446	* A id-scheme is used to avoid pointing to objects which have been
447	* freed and are now reused. If this is detected, the owner is
448	* set to NULL, and NULL is returned.
449	* Changed 2004-02-12 - if the player is setting at the play again
450	* prompt, he is removed, and we don't want to treat him as an owner of
451	* anything, so check removed flag. I don't expect that this should break
452	* anything - once an object is removed, it is basically dead anyways.
453	*/
454
455	object *get_owner(object *op) {
456	if(op->owner==NULL)
457	return NULL;
458
459	if (!QUERY_FLAG(op->owner,FLAG_FREED) && !QUERY_FLAG(op->owner, FLAG_REMOVED) &&
460	op->owner->count==op->ownercount)
461	return op->owner;
462
463	op->owner=NULL;
464	op->ownercount=0;
465	return NULL;
466	}
467
468	void clear_owner(object *op)
469	{	427	{
470	if (!op) return;	428	LOG (llevDebug, "%d allocated objects\n", nrofallocobjects);
471
472	if (op->owner && op->ownercount == op->owner->count)
473	op->owner->refcount--;
474
475	op->owner = NULL;
476	op->ownercount = 0;
477	}	429	}
478
479
480		430
481	/*	431	/*
482	* Sets the owner and sets the skill and exp pointers to owner's current	432	* Sets the owner and sets the skill and exp pointers to owner's current
483	* skill and experience objects.	433	* skill and experience objects.
484	*/	434	*/
485	void set_owner (object *op, object *owner)	435	void
		436	object::set_owner (object *owner)
486	{	437	{
487	if(owner==NULL||op==NULL)	438	if (!owner)
488	return;	439	return;
489		440
490	/* next line added to allow objects which own objects */	441	/* next line added to allow objects which own objects */
491	/* Add a check for ownercounts in here, as I got into an endless loop	442	/* Add a check for ownercounts in here, as I got into an endless loop
492	* with the fireball owning a poison cloud which then owned the	443	* with the fireball owning a poison cloud which then owned the
493	* fireball. I believe that was caused by one of the objects getting	444	* fireball. I believe that was caused by one of the objects getting
494	* freed and then another object replacing it. Since the ownercounts	445	* freed and then another object replacing it. Since the ownercounts
495	* didn't match, this check is valid and I believe that cause is valid.	446	* didn't match, this check is valid and I believe that cause is valid.
496	*/	447	*/
497	while (owner->owner && owner!=owner->owner &&	448	while (owner->owner)
498	owner->ownercount==owner->owner->count) owner=owner->owner;	449	owner = owner->owner;
499		450
500	/* IF the owner still has an owner, we did not resolve to a final owner.
501	* so lets not add to that.
502	*/
503	if (owner->owner) return;
504
505	op->owner=owner;	451	this->owner = owner;
506
507	op->ownercount=owner->count;
508	owner->refcount++;
509
510	}
511
512	/* Set the owner to clone's current owner and set the skill and experience
513	* objects to clone's objects (typically those objects that where the owner's
514	* current skill and experience objects at the time when clone's owner was
515	* set - not the owner's current skill and experience objects).
516	*
517	* Use this function if player created an object (e.g. fire bullet, swarm
518	* spell), and this object creates further objects whose kills should be
519	* accounted for the player's original skill, even if player has changed
520	* skills meanwhile.
521	*/
522	void copy_owner (object *op, object *clone)
523	{
524	object *owner = get_owner (clone);
525	if (owner == NULL) {
526	/* players don't have owners - they own themselves. Update
527	* as appropriate.
528	*/
529	if (clone->type == PLAYER) owner=clone;
530	else return;
531	}
532	set_owner(op, owner);
533
534	}
535
536	/*
537	* Resets vital variables in an object
538	*/
539
540	void reset_object(object *op) {
541
542	op->name = NULL;
543	op->name_pl = NULL;
544	op->title = NULL;
545	op->race = NULL;
546	op->slaying = NULL;
547	op->skill = NULL;
548	op->msg = NULL;
549	op->materialname = NULL;
550	op->lore = NULL;
551	op->current_weapon_script = NULL;
552	clear_object(op);
553	}	452	}
554		453
555	/* Zero the key_values on op, decrementing the shared-string	454	/* Zero the key_values on op, decrementing the shared-string
556	* refcounts and freeing the links.	455	* refcounts and freeing the links.
557	*/	456	*/
		457	static void
558	static void free_key_values(object * op) {	458	free_key_values (object *op)
559	key_value * i;	459	{
560	key_value * next = NULL;	460	for (key_value *i = op->key_values; i != 0;)
561		461	{
562	if (op->key_values == NULL) return;	462	key_value *next = i->next;
		463	delete i;
		464
		465	i = next;
563		466	}
564	for (i = op->key_values; i != NULL; i = next) {	467
565	/* Store next *first*. */
566	next = i->next;
567
568	if (i->key) FREE_AND_CLEAR_STR(i->key);
569	if (i->value) FREE_AND_CLEAR_STR(i->value);
570	i->next = NULL;
571	free(i);
572	}
573
574	op->key_values = NULL;	468	op->key_values = 0;
575	}	469	}
576		470
577
578	/*	471	/*
579	* clear_object() frees everything allocated by an object, and also
580	* clears all variables and flags to default settings.
581	*/
582
583	void clear_object(object *op) {
584	op->clear ();
585
586	event *evt;
587	event *evt2;
588
589	/* redo this to be simpler/more efficient. Was also seeing
590	* crashes in the old code. Move this to the top - am
591	* seeing periodic crashes in this code, and would like to have
592	* as much info available as possible (eg, object name).
593	*/
594	for (evt = op->events; evt; evt=evt2) {
595	evt2 = evt->next;
596
597	if (evt->hook != NULL) FREE_AND_CLEAR_STR(evt->hook);
598	if (evt->plugin != NULL) FREE_AND_CLEAR_STR(evt->plugin);
599	if (evt->options != NULL) FREE_AND_CLEAR_STR(evt->options);
600
601	free(evt);
602	}
603	op->events = NULL;
604
605	free_key_values(op);
606
607	/* the memset will clear all these values for us, but we need
608	* to reduce the refcount on them.
609	*/
610	if (op->name!=NULL) FREE_AND_CLEAR_STR(op->name);
611	if (op->name_pl!=NULL) FREE_AND_CLEAR_STR(op->name_pl);
612	if (op->title != NULL) FREE_AND_CLEAR_STR(op->title);
613	if (op->race!=NULL) FREE_AND_CLEAR_STR(op->race);
614	if (op->slaying!=NULL) FREE_AND_CLEAR_STR(op->slaying);
615	if (op->skill!=NULL) FREE_AND_CLEAR_STR(op->skill);
616	if (op->msg!=NULL) FREE_AND_CLEAR_STR(op->msg);
617	if (op->lore!=NULL) FREE_AND_CLEAR_STR(op->lore);
618	if (op->materialname!= NULL) FREE_AND_CLEAR_STR(op->materialname);
619
620
621	memset((void*)op, 0, sizeof (object_special));
622	/* Below here, we clear things that are not done by the memset,
623	* or set default values that are not zero.
624	*/
625	/* This is more or less true */
626	SET_FLAG(op, FLAG_REMOVED);
627
628
629	op->contr = NULL;
630	op->below=NULL;
631	op->above=NULL;
632	op->inv=NULL;
633	op->events=NULL;
634	op->container=NULL;
635	op->env=NULL;
636	op->more=NULL;
637	op->head=NULL;
638	op->map=NULL;
639	op->refcount=0;
640	op->active_next = NULL;
641	op->active_prev = NULL;
642	/* What is not cleared is next, prev, and count */
643
644	op->expmul=1.0;
645	op->face = blank_face;
646	op->attacked_by_count = (tag_t) -1;
647	if (settings.casting_time)
648	op->casting_time = -1;
649
650	}
651
652	/*
653	* copy object first frees everything allocated by the second object,	472	* copy_to first frees everything allocated by the dst object,
654	* and then copies the contends of the first object into the second	473	* and then copies the contents of itself into the second
655	* object, allocating what needs to be allocated. Basically, any	474	* object, allocating what needs to be allocated. Basically, any
656	* data that is malloc'd needs to be re-malloc/copied. Otherwise,	475	* data that is malloc'd needs to be re-malloc/copied. Otherwise,
657	* if the first object is freed, the pointers in the new object	476	* if the first object is freed, the pointers in the new object
658	* will point at garbage.	477	* will point at garbage.
659	*/	478	*/
		479	void
		480	object::copy_to (object *dst)
		481	{
		482	bool is_freed = QUERY_FLAG (dst, FLAG_FREED);
		483	bool is_removed = QUERY_FLAG (dst, FLAG_REMOVED);
660		484
661	void copy_object(object *op2, object *op) {	485	*(object_copy *)dst = *this;
662	int is_freed=QUERY_FLAG(op,FLAG_FREED),is_removed=QUERY_FLAG(op,FLAG_REMOVED);
663	event *evt, *evt2, *evt_new;
664		486
665	op->clear ();	487	if (is_freed)
		488	SET_FLAG (dst, FLAG_FREED);
666		489
667	/* Decrement the refcounts, but don't bother zeroing the fields;	490	if (is_removed)
668	they'll be overwritten by memcpy. */	491	SET_FLAG (dst, FLAG_REMOVED);
669	if(op->name!=NULL) free_string(op->name);
670	if(op->name_pl!=NULL) free_string(op->name_pl);
671	if(op->title!=NULL) free_string(op->title);
672	if(op->race!=NULL) free_string(op->race);
673	if(op->slaying!=NULL) free_string(op->slaying);
674	if(op->skill!=NULL) free_string(op->skill);
675	if(op->msg!=NULL) free_string(op->msg);
676	if(op->lore!=NULL) free_string(op->lore);
677	if(op->materialname != NULL) free_string(op->materialname);
678	if(op->custom_name != NULL) free_string(op->custom_name);
679		492
680	/* Basically, same code as from clear_object() */	493	if (speed < 0)
681	for (evt = op->events; evt; evt=evt2) {
682	evt2 = evt->next;
683
684	if (evt->hook != NULL) FREE_AND_CLEAR_STR(evt->hook);
685	if (evt->plugin != NULL) FREE_AND_CLEAR_STR(evt->plugin);
686	if (evt->options != NULL) FREE_AND_CLEAR_STR(evt->options);
687
688	free(evt);
689	}
690	op->events = NULL;
691
692	free_key_values(op);
693
694	*(object_special *)op = *(object_special *)op2;
695	op2->clone (op);
696
697	if(is_freed) SET_FLAG(op,FLAG_FREED);
698	if(is_removed) SET_FLAG(op,FLAG_REMOVED);
699	if(op->name!=NULL) add_refcount(op->name);
700	if(op->name_pl!=NULL) add_refcount(op->name_pl);
701	if(op->title!=NULL) add_refcount(op->title);
702	if(op->race!=NULL) add_refcount(op->race);
703	if(op->slaying!=NULL) add_refcount(op->slaying);
704	if(op->skill!=NULL) add_refcount(op->skill);
705	if(op->lore!=NULL) add_refcount(op->lore);
706	if(op->msg!=NULL) add_refcount(op->msg);
707	if(op->custom_name!=NULL) add_refcount(op->custom_name);
708	if (op->materialname != NULL) add_refcount(op->materialname);
709
710	if((op2->speed<0) && !editor)
711	op->speed_left=op2->speed_left-RANDOM()%200/100.0;	494	dst->speed_left = speed_left - RANDOM () % 200 / 100.0;
712		495
713	/* Copy over event information */
714	evt2 = NULL;
715	for (evt = op2->events; evt; evt=evt->next) {
716	evt_new = (event *) malloc(sizeof(event));
717	memcpy(evt_new, evt, sizeof(event));
718	if (evt_new->hook) add_refcount(evt_new->hook);
719	if (evt_new->plugin) add_refcount(evt_new->plugin);
720	if (evt_new->options) add_refcount(evt_new->options);
721	evt_new->next = NULL;
722
723	/* Try to be a little clever here, and store away the
724	* last event we copied, so that its simpler to update the
725	* pointer.
726	*/
727	if (evt2)
728	evt2->next = evt_new;
729	else
730	op->events = evt_new;
731
732	evt2 = evt_new;
733	}
734	/* Copy over key_values, if any. */	496	/* Copy over key_values, if any. */
735	if (op2->key_values != NULL) {	497	if (key_values)
736	key_value * tail = NULL;	498	{
		499	key_value *tail = 0;
737	key_value * i;	500	key_value *i;
738		501
739	op->key_values = NULL;	502	dst->key_values = 0;
740		503
741	for (i = op2->key_values; i != NULL; i = i->next) {	504	for (i = key_values; i; i = i->next)
742	key_value * new_link = (key_value *) malloc(sizeof(key_value));	505	{
		506	key_value *new_link = new key_value;
743		507
744	new_link->next = NULL;	508	new_link->next = 0;
745	new_link->key = add_refcount(i->key);	509	new_link->key = i->key;
746	if (i->value)	510	new_link->value = i->value;
747	new_link->value = add_refcount(i->value);
748	else
749	new_link->value = NULL;
750		511
751	/* Try and be clever here, too. */	512	/* Try and be clever here, too. */
752	if (op->key_values == NULL) {	513	if (!dst->key_values)
753	op->key_values = new_link;	514	{
754	tail = new_link;	515	dst->key_values = new_link;
755	} else {	516	tail = new_link;
756	tail->next = new_link;	517	}
757	tail = new_link;	518	else
		519	{
		520	tail->next = new_link;
		521	tail = new_link;
		522	}
		523	}
758	}	524	}
759	}
760	}
761		525
762	update_ob_speed(op);	526	dst->set_speed (dst->speed);
763	}	527	}
764		528
765	/*
766	* expand_objects() allocates more objects for the list of unused objects.
767	* It is called from get_object() if the unused list is empty.
768	*/
769
770	void expand_objects(void) {
771	int i;
772	object *obj;
773	obj = (object *) CALLOC(OBJ_EXPAND,sizeof(object));
774
775	if(obj==NULL)
776	fatal(OUT_OF_MEMORY);
777	free_objects=obj;
778	obj[0].prev=NULL;
779	obj[0].next= &obj[1],
780	SET_FLAG(&(obj[0]), FLAG_REMOVED);
781	SET_FLAG(&(obj[0]), FLAG_FREED);
782
783	for(i=1;i<OBJ_EXPAND-1;i++) {
784	obj[i].next= &obj[i+1],
785	obj[i].prev= &obj[i-1],
786	SET_FLAG(&(obj[i]), FLAG_REMOVED);
787	SET_FLAG(&(obj[i]), FLAG_FREED);
788	}
789	obj[OBJ_EXPAND-1].prev= &obj[OBJ_EXPAND-2],
790	obj[OBJ_EXPAND-1].next=NULL,
791	SET_FLAG(&(obj[OBJ_EXPAND-1]), FLAG_REMOVED);
792	SET_FLAG(&(obj[OBJ_EXPAND-1]), FLAG_FREED);
793
794	nrofallocobjects += OBJ_EXPAND;
795	nroffreeobjects += OBJ_EXPAND;
796	}
797
798	/*
799	* get_object() grabs an object from the list of unused objects, makes
800	* sure it is initialised, and returns it.
801	* If there are no free objects, expand_objects() is called to get more.
802	*/
803
804	object *get_object(void) {
805	object *op;	529	object *
806		530	object::clone ()
807	if(free_objects==NULL) {	531	{
808	expand_objects();	532	object *neu = create ();
809	}	533	copy_to (neu);
810	op=free_objects;
811	#ifdef MEMORY_DEBUG
812	/* The idea is hopefully by doing a realloc, the memory
813	* debugging program will now use the current stack trace to
814	* report leaks.
815	*/
816	op = realloc(op, sizeof(object));
817	SET_FLAG(op, FLAG_REMOVED);
818	SET_FLAG(op, FLAG_FREED);
819	#endif
820
821	if(!QUERY_FLAG(op,FLAG_FREED)) {
822	LOG(llevError,"Fatal: Getting busy object.\n");
823	}
824	free_objects=op->next;
825	if(free_objects!=NULL)
826	free_objects->prev=NULL;
827	op->count= ++ob_count;
828	op->name=NULL;
829	op->name_pl=NULL;
830	op->title=NULL;
831	op->race=NULL;
832	op->slaying=NULL;
833	op->skill = NULL;
834	op->lore=NULL;
835	op->msg=NULL;
836	op->materialname=NULL;
837	op->next=objects;
838	op->prev=NULL;
839	op->active_next = NULL;
840	op->active_prev = NULL;
841	if(objects!=NULL)
842	objects->prev=op;
843	objects=op;
844	clear_object(op);
845	SET_FLAG(op,FLAG_REMOVED);
846	nroffreeobjects--;
847	return op;	534	return neu;
848	}	535	}
849		536
850	/*	537	/*
851	* If an object with the IS_TURNABLE() flag needs to be turned due	538	* If an object with the IS_TURNABLE() flag needs to be turned due
852	* to the closest player being on the other side, this function can	539	* to the closest player being on the other side, this function can
853	* be called to update the face variable, _and_ how it looks on the map.	540	* be called to update the face variable, _and_ how it looks on the map.
854	*/	541	*/
855		542	void
856	void update_turn_face(object *op) {	543	update_turn_face (object *op)
		544	{
857	if(!QUERY_FLAG(op,FLAG_IS_TURNABLE)||op->arch==NULL)	545	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || !op->arch)
858	return;	546	return;
		547
859	SET_ANIMATION(op, op->direction);	548	SET_ANIMATION (op, op->direction);
860	update_object(op,UP_OBJ_FACE);	549	update_object (op, UP_OBJ_FACE);
861	}	550	}
862		551
863	/*	552	/*
864	* Updates the speed of an object. If the speed changes from 0 to another	553	* Updates the speed of an object. If the speed changes from 0 to another
865	* value, or vice versa, then add/remove the object from the active list.	554	* value, or vice versa, then add/remove the object from the active list.
866	* This function needs to be called whenever the speed of an object changes.	555	* This function needs to be called whenever the speed of an object changes.
867	*/	556	*/
868		557	void
869	void update_ob_speed(object *op) {	558	object::set_speed (float speed)
870	extern int arch_init;	559	{
871		560	if (flag [FLAG_FREED] && speed)
872	/* No reason putting the archetypes objects on the speed list,	561	{
873	* since they never really need to be updated.
874	*/
875
876	if (QUERY_FLAG(op, FLAG_FREED) && op->speed) {
877	LOG(llevError,"Object %s is freed but has speed.\n", op->name);	562	LOG (llevError, "Object %s is freed but has speed.\n", &name);
878	#ifdef MANY_CORES	563	speed = 0;
879	abort();
880	#else
881	op->speed = 0;
882	#endif
883	}	564	}
884	if (arch_init) {	565
885	return;	566	this->speed = speed;
886	}	567
887	if (FABS(op->speed)>MIN_ACTIVE_SPEED) {	568	if (FABS (speed) > MIN_ACTIVE_SPEED)
		569	{
888	/* If already on active list, don't do anything */	570	/* If already on active list, don't do anything */
889	if (op->active_next || op->active_prev || op==active_objects)	571	if (active_next || active_prev || this == active_objects)
890	return;	572	return;
891		573
892	/* process_events() expects us to insert the object at the beginning	574	/* process_events() expects us to insert the object at the beginning
893	* of the list. */	575	* of the list. */
894	op->active_next = active_objects;	576	active_next = active_objects;
895	if (op->active_next!=NULL)
896	op->active_next->active_prev = op;
897	active_objects = op;
898	}
899	else {
900	/* If not on the active list, nothing needs to be done */
901	if (!op->active_next && !op->active_prev && op!=active_objects)
902	return;
903		577
904	if (op->active_prev==NULL) {
905	active_objects = op->active_next;
906	if (op->active_next!=NULL)
907	op->active_next->active_prev = NULL;
908	}
909	else {
910	op->active_prev->active_next = op->active_next;
911	if (op->active_next)	578	if (active_next)
912	op->active_next->active_prev = op->active_prev;	579	active_next->active_prev = this;
913	}	580
914	op->active_next = NULL;	581	active_objects = this;
915	op->active_prev = NULL;	582	}
		583	else
916	}	584	{
917	}
918
919	/* This function removes object 'op' from the list of active
920	* objects.
921	* This should only be used for style maps or other such
922	* reference maps where you don't want an object that isn't
923	* in play chewing up cpu time getting processed.
924	* The reverse of this is to call update_ob_speed, which
925	* will do the right thing based on the speed of the object.
926	*/
927	void remove_from_active_list(object *op)
928	{
929	/* If not on the active list, nothing needs to be done */	585	/* If not on the active list, nothing needs to be done */
930	if (!op->active_next && !op->active_prev && op!=active_objects)	586	if (!active_next && !active_prev && this != active_objects)
931	return;	587	return;
932		588
933	if (op->active_prev==NULL) {	589	if (!active_prev)
		590	{
934	active_objects = op->active_next;	591	active_objects = active_next;
935	if (op->active_next!=NULL)	592
936	op->active_next->active_prev = NULL;	593	if (active_next)
937	}	594	active_next->active_prev = 0;
		595	}
938	else {	596	else
		597	{
939	op->active_prev->active_next = op->active_next;	598	active_prev->active_next = active_next;
940	if (op->active_next)	599
		600	if (active_next)
941	op->active_next->active_prev = op->active_prev;	601	active_next->active_prev = active_prev;
942	}	602	}
		603
943	op->active_next = NULL;	604	active_next = 0;
944	op->active_prev = NULL;	605	active_prev = 0;
		606	}
945	}	607	}
946		608
947	/*	609	/*
948	* update_object() updates the array which represents the map.	610	* update_object() updates the the map.
949	* It takes into account invisible objects (and represent squares covered	611	* It takes into account invisible objects (and represent squares covered
950	* by invisible objects by whatever is below them (unless it's another	612	* by invisible objects by whatever is below them (unless it's another
951	* invisible object, etc...)	613	* invisible object, etc...)
952	* If the object being updated is beneath a player, the look-window	614	* If the object being updated is beneath a player, the look-window
953	* of that player is updated (this might be a suboptimal way of	615	* of that player is updated (this might be a suboptimal way of
954	* updating that window, though, since update_object() is called _often_)	616	* updating that window, though, since update_object() is called _often_)
955	*	617	*
956	* action is a hint of what the caller believes need to be done.	618	* action is a hint of what the caller believes need to be done.
957	* For example, if the only thing that has changed is the face (due to
958	* an animation), we don't need to call update_position until that actually
959	* comes into view of a player. OTOH, many other things, like addition/removal
960	* of walls or living creatures may need us to update the flags now.
961	* current action are:	619	* current action are:
962	* UP_OBJ_INSERT: op was inserted	620	* UP_OBJ_INSERT: op was inserted
963	* UP_OBJ_REMOVE: op was removed	621	* UP_OBJ_REMOVE: op was removed
964	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update	622	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update
965	* as that is easier than trying to look at what may have changed.	623	* as that is easier than trying to look at what may have changed.
966	* UP_OBJ_FACE: only the objects face has changed.	624	* UP_OBJ_FACE: only the objects face has changed.
967	*/	625	*/
968		626	void
969	void update_object(object *op, int action) {	627	update_object (object *op, int action)
970	int update_now=0, flags;	628	{
971	MoveType move_on, move_off, move_block, move_slow;	629	MoveType move_on, move_off, move_block, move_slow;
972		630
973	if (op == NULL) {	631	if (op == NULL)
		632	{
974	/* this should never happen */	633	/* this should never happen */
975	LOG(llevDebug,"update_object() called for NULL object.\n");	634	LOG (llevDebug, "update_object() called for NULL object.\n");
976	return;	635	return;
977	}
978		636	}
979	if(op->env!=NULL) {	637
		638	if (op->env)
		639	{
980	/* Animation is currently handled by client, so nothing	640	/* Animation is currently handled by client, so nothing
981	* to do in this case.	641	* to do in this case.
982	*/	642	*/
983	return;	643	return;
984	}	644	}
985		645
986	/* If the map is saving, don't do anything as everything is	646	/* If the map is saving, don't do anything as everything is
987	* going to get freed anyways.	647	* going to get freed anyways.
988	*/	648	*/
989	if (!op->map || op->map->in_memory == MAP_SAVING) return;	649	if (!op->map || op->map->in_memory == MAP_SAVING)
990		650	return;
		651
991	/* make sure the object is within map boundaries */	652	/* make sure the object is within map boundaries */
992	if (op->x < 0 || op->x >= MAP_WIDTH(op->map) ||	653	if (op->x < 0 || op->x >= op->map->width || op->y < 0 || op->y >= op->map->height)
993	op->y < 0 || op->y >= MAP_HEIGHT(op->map)) {	654	{
994	LOG(llevError,"update_object() called for object out of map!\n");	655	LOG (llevError, "update_object() called for object out of map!\n");
995	#ifdef MANY_CORES	656	#ifdef MANY_CORES
996	abort();	657	abort ();
997	#endif	658	#endif
998	return;	659	return;
999	}
1000		660	}
1001	flags = GET_MAP_FLAGS(op->map, op->x, op->y);
1002	SET_MAP_FLAGS(op->map, op->x, op->y, flags | P_NEED_UPDATE);
1003	move_slow = GET_MAP_MOVE_SLOW(op->map, op->x, op->y);
1004	move_on = GET_MAP_MOVE_ON(op->map, op->x, op->y);
1005	move_block = GET_MAP_MOVE_BLOCK(op->map, op->x, op->y);
1006	move_off = GET_MAP_MOVE_OFF(op->map, op->x, op->y);
1007		661
		662	mapspace &m = op->ms ();
		663
		664	if (m.flags_ & P_NEED_UPDATE)
		665	/* nop */;
1008	if (action == UP_OBJ_INSERT) {	666	else if (action == UP_OBJ_INSERT)
		667	{
		668	// this is likely overkill, TODO: revisit (schmorp)
1009	if (QUERY_FLAG(op, FLAG_BLOCKSVIEW) && !(flags & P_BLOCKSVIEW))	669	if ((QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(m.flags_ & P_BLOCKSVIEW))
1010	update_now=1;
1011
1012	if (QUERY_FLAG(op, FLAG_NO_MAGIC) && !(flags & P_NO_MAGIC))	670	|| (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(m.flags_ & P_NO_MAGIC))
1013	update_now=1;	671	|| (op->type == PLAYER && !(m.flags_ & P_PLAYER))
1014		672	|| (op->type == SAFE_GROUND && !(m.flags_ & P_SAFE))
		673	|| (QUERY_FLAG (op, FLAG_ALIVE) && !(m.flags_ & P_IS_ALIVE))
1015	if (QUERY_FLAG(op, FLAG_DAMNED) && !(flags & P_NO_CLERIC))	674	|| (QUERY_FLAG (op, FLAG_DAMNED) && !(m.flags_ & P_NO_CLERIC))
1016	update_now=1;	675	|| (m.move_on | op->move_on ) != m.move_on
1017		676	|| (m.move_off | op->move_off ) != m.move_off
1018	if (QUERY_FLAG(op, FLAG_ALIVE) && !(flags & P_IS_ALIVE))	677	|| (m.move_slow | op->move_slow) != m.move_slow
1019	update_now=1;
1020
1021	if ((move_on | op->move_on) != move_on) update_now=1;
1022	if ((move_off | op->move_off) != move_off) update_now=1;
1023	/* This isn't perfect, but I don't expect a lot of objects to	678	/* This isn't perfect, but I don't expect a lot of objects to
1024	* to have move_allow right now.	679	* to have move_allow right now.
1025	*/	680	*/
1026	if (((move_block | op->move_block) & ~op->move_allow) != move_block)	681	|| ((m.move_block | op->move_block) & ~op->move_allow) != m.move_block
1027	update_now=1;	682	|| 1) // the above is not strong enough a test to skip updating. los maybe? TODO (Schmorp)
1028	if ((move_slow | op->move_slow) != move_slow) update_now=1;	683	m.flags_ = P_NEED_UPDATE;
1029	}	684	}
1030	/* if the object is being removed, we can't make intelligent	685	/* if the object is being removed, we can't make intelligent
1031	* decisions, because remove_ob can't really pass the object	686	* decisions, because remove_ob can't really pass the object
1032	* that is being removed.	687	* that is being removed.
1033	*/	688	*/
1034	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE) {	689	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)
1035	update_now=1;	690	m.flags_ = P_NEED_UPDATE;
1036	} else if (action == UP_OBJ_FACE) {	691	else if (action == UP_OBJ_FACE)
1037	/* Nothing to do for that case */	692	/* Nothing to do for that case */ ;
1038	}
1039	else {	693	else
1040	LOG(llevError,"update_object called with invalid action: %d\n", action);	694	LOG (llevError, "update_object called with invalid action: %d\n", action);
1041	}
1042		695
1043	if (update_now) {
1044	SET_MAP_FLAGS(op->map, op->x, op->y, flags | P_NO_ERROR | P_NEED_UPDATE);
1045	update_position(op->map, op->x, op->y);
1046	}
1047
1048	if(op->more!=NULL)	696	if (op->more)
1049	update_object(op->more, action);	697	update_object (op->more, action);
1050	}	698	}
1051		699
		700	object::vector object::objects; // not yet used
		701	object *object::first;
1052		702
1053	/*	703	object::object ()
1054	* free_object() frees everything allocated by an object, removes	704	{
1055	* it from the list of used objects, and puts it on the list of
1056	* free objects. The IS_FREED() flag is set in the object.
1057	* The object must have been removed by remove_ob() first for
1058	* this function to succeed.
1059	*
1060	* If free_inventory is set, free inventory as well. Else drop items in
1061	* inventory to the ground.
1062	*/
1063
1064	void free_object(object *ob) {
1065	free_object2(ob, 0);
1066	}
1067	void free_object2(object *ob, int free_inventory) {
1068	object *tmp,*op;
1069
1070	ob->clear ();
1071
1072	if (!QUERY_FLAG(ob,FLAG_REMOVED)) {
1073	LOG(llevDebug,"Free object called with non removed object\n");
1074	dump_object(ob);
1075	#ifdef MANY_CORES
1076	abort();
1077	#endif
1078	}
1079	if(QUERY_FLAG(ob,FLAG_FRIENDLY)) {
1080	LOG(llevMonster,"Warning: tried to free friendly object.\n");
1081	remove_friendly_object(ob);
1082	}
1083	if(QUERY_FLAG(ob,FLAG_FREED)) {
1084	dump_object(ob);
1085	LOG(llevError,"Trying to free freed object.\n%s\n",errmsg);
1086	return;
1087	}
1088	if(ob->more!=NULL) {
1089	free_object2(ob->more, free_inventory);
1090	ob->more=NULL;
1091	}
1092	if (ob->inv) {
1093	/* Only if the space blocks everything do we not process -
1094	* if some form of movemnt is allowed, let objects
1095	* drop on that space.
1096	*/
1097	if (free_inventory || ob->map==NULL || ob->map->in_memory!=MAP_IN_MEMORY ||
1098	(GET_MAP_MOVE_BLOCK(ob->map, ob->x, ob->y) == MOVE_ALL))
1099	{
1100	op=ob->inv;
1101	while(op!=NULL) {
1102	tmp=op->below;
1103	remove_ob(op);
1104	free_object2(op, free_inventory);
1105	op=tmp;
1106	}
1107	}
1108	else { /* Put objects in inventory onto this space */
1109	op=ob->inv;
1110	while(op!=NULL) {
1111	tmp=op->below;
1112	remove_ob(op);
1113	if(QUERY_FLAG(op,FLAG_STARTEQUIP)||QUERY_FLAG(op,FLAG_NO_DROP) ||
1114	op->type==RUNE || op->type==TRAP || QUERY_FLAG(op,FLAG_IS_A_TEMPLATE))
1115	free_object(op);
1116	else {
1117	op->x=ob->x;
1118	op->y=ob->y;
1119	insert_ob_in_map(op,ob->map,NULL,0); /* Insert in same map as the envir */
1120	}
1121	op=tmp;
1122	}
1123	}
1124	}
1125	/* Remove object from the active list */
1126	ob->speed = 0;
1127	update_ob_speed(ob);
1128
1129	SET_FLAG(ob, FLAG_FREED);	705	SET_FLAG (this, FLAG_REMOVED);
1130	ob->count = 0;
1131		706
		707	expmul = 1.0;
		708	face = blank_face;
		709	}
		710
		711	object::~object ()
		712	{
		713	free_key_values (this);
		714	}
		715
		716	void object::link ()
		717	{
		718	count = ++ob_count;
		719	uuid = gen_uuid ();
		720
		721	prev = 0;
		722	next = object::first;
		723
		724	if (object::first)
		725	object::first->prev = this;
		726
		727	object::first = this;
		728	}
		729
		730	void object::unlink ()
		731	{
		732	if (this == object::first)
		733	object::first = next;
		734
1132	/* Remove this object from the list of used objects */	735	/* Remove this object from the list of used objects */
1133	if(ob->prev==NULL) {	736	if (prev) prev->next = next;
1134	objects=ob->next;	737	if (next) next->prev = prev;
1135	if(objects!=NULL)
1136	objects->prev=NULL;
1137	}
1138	else {
1139	ob->prev->next=ob->next;
1140	if(ob->next!=NULL)
1141	ob->next->prev=ob->prev;
1142	}
1143
1144	if(ob->name!=NULL) FREE_AND_CLEAR_STR(ob->name);
1145	if(ob->name_pl!=NULL) FREE_AND_CLEAR_STR(ob->name_pl);
1146	if(ob->title!=NULL) FREE_AND_CLEAR_STR(ob->title);
1147	if(ob->race!=NULL) FREE_AND_CLEAR_STR(ob->race);
1148	if(ob->slaying!=NULL) FREE_AND_CLEAR_STR(ob->slaying);
1149	if(ob->skill!=NULL) FREE_AND_CLEAR_STR(ob->skill);
1150	if(ob->lore!=NULL) FREE_AND_CLEAR_STR(ob->lore);
1151	if(ob->msg!=NULL) FREE_AND_CLEAR_STR(ob->msg);
1152	if(ob->materialname!=NULL) FREE_AND_CLEAR_STR(ob->materialname);
1153		738
		739	prev = 0;
		740	next = 0;
		741	}
		742
		743	void
		744	object::activate (bool recursive)
		745	{
		746	// uh, hack
		747	set_speed (speed);
		748
		749	if (recursive)
		750	for (object *op = inv; op; op = op->above)
		751	op->activate (1);
		752	}
		753
		754	/* This function removes object 'op' from the list of active
		755	* objects.
		756	* This should only be used for style maps or other such
		757	* reference maps where you don't want an object that isn't
		758	* in play chewing up cpu time getting processed.
		759	* The reverse of this is to call update_ob_speed, which
		760	* will do the right thing based on the speed of the object.
		761	*/
		762	void
		763	object::deactivate (bool recursive)
		764	{
		765	/* If not on the active list, nothing needs to be done */
		766	if (!active_next && !active_prev && this != active_objects)
		767	return;
		768
		769	if (active_prev == 0)
1154		770	{
1155	/* Why aren't events freed? */	771	active_objects = active_next;
1156	free_key_values(ob);	772	if (active_next)
		773	active_next->active_prev = 0;
		774	}
		775	else
		776	{
		777	active_prev->active_next = active_next;
		778	if (active_next)
		779	active_next->active_prev = active_prev;
		780	}
1157		781
1158	#if 0 /* MEMORY_DEBUG*/	782	active_next = 0;
1159	/* This is a nice idea. Unfortunately, a lot of the code in crossfire	783	active_prev = 0;
1160	* presumes the freed_object will stick around for at least a little	784
1161	* bit	785	if (recursive)
1162	*/	786	for (object *op = inv; op; op = op->above)
1163	/* this is necessary so that memory debugging programs will	787	op->deactivate (1);
1164	* be able to accurately report source of malloc. If we recycle	788	}
1165	* objects, then some other area may be doing the get_object	789
1166	* and not freeing it, but the original one that malloc'd the	790	/*
1167	* object will get the blame.	791	* Remove and free all objects in the inventory of the given object.
		792	* object.c ?
		793	*/
		794	void
		795	object::destroy_inv (bool drop_to_ground)
		796	{
		797	// need to check first, because the checks below might segfault
		798	// as we might be on an invalid mapspace and crossfire code
		799	// is too buggy to ensure that the inventory is empty.
		800	// corollary: if you create arrows etc. with stuff in tis inventory,
		801	// cf will crash below with off-map x and y
		802	if (!inv)
		803	return;
		804
		805	/* Only if the space blocks everything do we not process -
		806	* if some form of movement is allowed, let objects
		807	* drop on that space.
1168	*/	808	*/
1169	free(ob);	809	if (!drop_to_ground
1170	#else	810	|| !map
		811	|| map->in_memory != MAP_IN_MEMORY
		812	|| ms ().move_block == MOVE_ALL)
		813	{
		814	while (inv)
		815	{
		816	inv->destroy_inv (drop_to_ground);
		817	inv->destroy ();
		818	}
		819	}
		820	else
		821	{ /* Put objects in inventory onto this space */
		822	while (inv)
		823	{
		824	object *op = inv;
1171		825
1172	/* Now link it with the free_objects list: */	826	if (op->flag [FLAG_STARTEQUIP]
1173	ob->prev=NULL;	827	|| op->flag [FLAG_NO_DROP]
1174	ob->next=free_objects;	828	|| op->type == RUNE
1175	if(free_objects!=NULL)	829	|| op->type == TRAP
1176	free_objects->prev=ob;	830	|| op->flag [FLAG_IS_A_TEMPLATE])
1177	free_objects=ob;	831	op->destroy ();
1178	nroffreeobjects++;	832	else
1179	#endif	833	map->insert (op, x, y);
		834	}
		835	}
1180	}	836	}
1181		837
1182	/*	838	object *object::create ()
1183	* count_free() returns the number of objects on the list of free objects.	839	{
1184	*/
1185
1186	int count_free(void) {
1187	int i=0;
1188	object *tmp=free_objects;	840	object *op = new object;
1189	while(tmp!=NULL)	841	op->link ();
1190	tmp=tmp->next, i++;
1191	return i;	842	return op;
1192	}	843	}
1193		844
1194	/*	845	void
1195	* count_used() returns the number of objects on the list of used objects.	846	object::do_destroy ()
1196	*/	847	{
		848	if (flag [FLAG_IS_LINKED])
		849	remove_button_link (this);
1197		850
1198	int count_used(void) {	851	if (flag [FLAG_FRIENDLY])
1199	int i=0;	852	remove_friendly_object (this);
1200	object *tmp=objects;	853
1201	while(tmp!=NULL)	854	if (!flag [FLAG_REMOVED])
1202	tmp=tmp->next, i++;	855	remove ();
		856
		857	if (flag [FLAG_FREED])
1203	return i;	858	return;
1204	}
1205		859
1206	/*	860	set_speed (0);
1207	* count_active() returns the number of objects on the list of active objects.
1208	*/
1209		861
1210	int count_active(void) {	862	flag [FLAG_FREED] = 1;
1211	int i=0;	863
1212	object *tmp=active_objects;	864	attachable::do_destroy ();
1213	while(tmp!=NULL)	865
1214	tmp=tmp->active_next, i++;	866	destroy_inv (true);
		867	unlink ();
		868
		869	// hack to ensure that freed objects still have a valid map
		870	{
		871	static maptile *freed_map; // freed objects are moved here to avoid crashes
		872
		873	if (!freed_map)
		874	{
		875	freed_map = new maptile;
		876
		877	freed_map->name = "/internal/freed_objects_map";
		878	freed_map->width = 3;
		879	freed_map->height = 3;
		880
		881	freed_map->alloc ();
		882	}
		883
		884	map = freed_map;
		885	x = 1;
		886	y = 1;
		887	}
		888
		889	head = 0;
		890
		891	if (more)
		892	{
		893	more->destroy ();
		894	more = 0;
		895	}
		896
		897	// clear those pointers that likely might have circular references to us
		898	owner = 0;
		899	enemy = 0;
		900	attacked_by = 0;
		901
		902	// only relevant for players(?), but make sure of it anyways
		903	contr = 0;
		904	}
		905
		906	void
		907	object::destroy (bool destroy_inventory)
		908	{
		909	if (destroyed ())
1215	return i;	910	return;
		911
		912	if (destroy_inventory)
		913	destroy_inv (false);
		914
		915	attachable::destroy ();
1216	}	916	}
1217		917
1218	/*	918	/*
1219	* sub_weight() recursively (outwards) subtracts a number from the	919	* sub_weight() recursively (outwards) subtracts a number from the
1220	* weight of an object (and what is carried by it's environment(s)).	920	* weight of an object (and what is carried by it's environment(s)).
1221	*/	921	*/
1222		922	void
1223	void sub_weight (object *op, signed long weight) {	923	sub_weight (object *op, signed long weight)
		924	{
1224	while (op != NULL) {	925	while (op != NULL)
		926	{
1225	if (op->type == CONTAINER) {	927	if (op->type == CONTAINER)
1226	weight=(signed long)(weight*(100-op->stats.Str)/100);	928	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1227	}	929
1228	op->carrying-=weight;	930	op->carrying -= weight;
1229	op = op->env;	931	op = op->env;
1230	}	932	}
1231	}	933	}
1232		934
1233	/* remove_ob(op):	935	/* op->remove ():
1234	* This function removes the object op from the linked list of objects	936	* This function removes the object op from the linked list of objects
1235	* which it is currently tied to. When this function is done, the	937	* which it is currently tied to. When this function is done, the
1236	* object will have no environment. If the object previously had an	938	* object will have no environment. If the object previously had an
1237	* environment, the x and y coordinates will be updated to	939	* environment, the x and y coordinates will be updated to
1238	* the previous environment.	940	* the previous environment.
1239	* Beware: This function is called from the editor as well!	941	* Beware: This function is called from the editor as well!
1240	*/	942	*/
1241		943	void
1242	void remove_ob(object *op) {	944	object::remove ()
		945	{
1243	object *tmp,*last=NULL;	946	object *tmp, *last = 0;
1244	object *otmp;	947	object *otmp;
1245	tag_t tag;
1246	int check_walk_off;
1247	mapstruct *m;
1248	sint16 x,y;
1249
1250		948
1251	if(QUERY_FLAG(op,FLAG_REMOVED)) {	949	if (QUERY_FLAG (this, FLAG_REMOVED))
1252	dump_object(op);	950	return;
1253	LOG(llevError,"Trying to remove removed object.\n%s\n",errmsg);
1254		951
1255	/* Changed it to always dump core in this case. As has been learned
1256	* in the past, trying to recover from errors almost always
1257	* make things worse, and this is a real error here - something
1258	* that should not happen.
1259	* Yes, if this was a mission critical app, trying to do something
1260	* to recover may make sense, but that is because failure of the app
1261	* may have other disastrous problems. Cf runs out of a script
1262	* so is easily enough restarted without any real problems.
1263	* MSW 2001-07-01
1264	*/
1265	abort();
1266	}
1267	if(op->more!=NULL)
1268	remove_ob(op->more);
1269
1270	SET_FLAG(op, FLAG_REMOVED);	952	SET_FLAG (this, FLAG_REMOVED);
		953	INVOKE_OBJECT (REMOVE, this);
1271		954
		955	if (more)
		956	more->remove ();
		957
1272	/*	958	/*
1273	* In this case, the object to be removed is in someones	959	* In this case, the object to be removed is in someones
1274	* inventory.	960	* inventory.
1275	*/	961	*/
1276	if(op->env!=NULL) {	962	if (env)
1277	if(op->nrof)	963	{
		964	if (nrof)
1278	sub_weight(op->env, op->weight*op->nrof);	965	sub_weight (env, weight * nrof);
1279	else	966	else
1280	sub_weight(op->env, op->weight+op->carrying);	967	sub_weight (env, weight + carrying);
1281		968
1282	/* NO_FIX_PLAYER is set when a great many changes are being	969	/* NO_FIX_PLAYER is set when a great many changes are being
1283	* made to players inventory. If set, avoiding the call	970	* made to players inventory. If set, avoiding the call
1284	* to save cpu time.	971	* to save cpu time.
1285	*/	972	*/
1286	if ((otmp=is_player_inv(op->env))!=NULL && otmp->contr &&	973	if ((otmp = in_player ()) && otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1287	!QUERY_FLAG(otmp,FLAG_NO_FIX_PLAYER))	974	otmp->update_stats ();
1288	fix_player(otmp);
1289		975
1290	if(op->above!=NULL)	976	if (above)
1291	op->above->below=op->below;	977	above->below = below;
1292	else	978	else
1293	op->env->inv=op->below;	979	env->inv = below;
1294		980
1295	if(op->below!=NULL)	981	if (below)
1296	op->below->above=op->above;	982	below->above = above;
1297		983
1298	/* we set up values so that it could be inserted into	984	/* we set up values so that it could be inserted into
1299	* the map, but we don't actually do that - it is up	985	* the map, but we don't actually do that - it is up
1300	* to the caller to decide what we want to do.	986	* to the caller to decide what we want to do.
1301	*/
1302	op->x=op->env->x,op->y=op->env->y;
1303	op->ox=op->x,op->oy=op->y;
1304	op->map=op->env->map;
1305	op->above=NULL,op->below=NULL;
1306	op->env=NULL;
1307	return;
1308	}
1309
1310	/* If we get here, we are removing it from a map */
1311	if (op->map == NULL) return;
1312
1313	x = op->x;
1314	y = op->y;
1315	m = get_map_from_coord(op->map, &x, &y);
1316
1317	if (!m) {
1318	LOG(llevError,"remove_ob called when object was on map but appears to not be within valid coordinates? %s (%d,%d)\n",
1319	op->map->path, op->x, op->y);
1320	/* in old days, we used to set x and y to 0 and continue.
1321	* it seems if we get into this case, something is probablye
1322	* screwed up and should be fixed.
1323	*/
1324	abort();
1325	}
1326	if (op->map != m) {
1327	LOG(llevDebug,"remove_ob: Object not really on map it claimed to be on? %s != %s, %d,%d != %d,%d\n",
1328	op->map->path, m->path, op->x, op->y, x, y);
1329	}
1330
1331	/* Re did the following section of code - it looks like it had
1332	* lots of logic for things we no longer care about
1333	*/	987	*/
		988	x = env->x, y = env->y;
		989	map = env->map;
		990	above = 0, below = 0;
		991	env = 0;
		992	}
		993	else if (map)
		994	{
		995	if (type == PLAYER)
		996	{
		997	--map->players;
		998	map->last_access = runtime;
		999	}
1334		1000
		1001
1335	/* link the object above us */	1002	/* link the object above us */
1336	if (op->above)	1003	if (above)
1337	op->above->below=op->below;	1004	above->below = below;
1338	else	1005	else
1339	SET_MAP_TOP(m,x,y,op->below); /* we were top, set new top */	1006	map->at (x, y).top = below; /* we were top, set new top */
1340		1007
1341	/* Relink the object below us, if there is one */	1008	/* Relink the object below us, if there is one */
1342	if(op->below) {	1009	if (below)
1343	op->below->above=op->above;	1010	below->above = above;
1344	} else {	1011	else
		1012	{
1345	/* Nothing below, which means we need to relink map object for this space	1013	/* Nothing below, which means we need to relink map object for this space
1346	* use translated coordinates in case some oddness with map tiling is	1014	* use translated coordinates in case some oddness with map tiling is
1347	* evident	1015	* evident
1348	*/	1016	*/
1349	if(GET_MAP_OB(m,x,y)!=op) {	1017	if (GET_MAP_OB (map, x, y) != this)
1350	dump_object(op);	1018	{
		1019	char *dump = dump_object (this);
		1020	LOG (llevError,
1351	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);	1021	"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);
1352	dump_object(GET_MAP_OB(m,x,y));	1022	free (dump);
1353	LOG(llevError,"%s\n",errmsg);	1023	dump = dump_object (GET_MAP_OB (map, x, y));
1354	}	1024	LOG (llevError, "%s\n", dump);
1355	SET_MAP_OB(m,x,y,op->above); /* goes on above it. */	1025	free (dump);
1356	}	1026	}
1357	op->above=NULL;
1358	op->below=NULL;
1359		1027
		1028	map->at (x, y).bot = above; /* goes on above it. */
		1029	}
		1030
		1031	above = 0;
		1032	below = 0;
		1033
1360	if (op->map->in_memory == MAP_SAVING)	1034	if (map->in_memory == MAP_SAVING)
1361	return;	1035	return;
1362		1036
1363	tag = op->count;	1037	int check_walk_off = !flag [FLAG_NO_APPLY];
1364	check_walk_off = ! QUERY_FLAG (op, FLAG_NO_APPLY);	1038
1365	for(tmp=GET_MAP_OB(m,x,y);tmp!=NULL;tmp=tmp->above) {	1039	for (tmp = map->at (x, y).bot; tmp; tmp = tmp->above)
		1040	{
1366	/* No point updating the players look faces if he is the object	1041	/* No point updating the players look faces if he is the object
1367	* being removed.	1042	* being removed.
1368	*/	1043	*/
1369		1044
1370	if(tmp->type==PLAYER && tmp!=op) {	1045	if (tmp->type == PLAYER && tmp != this)
		1046	{
1371	/* If a container that the player is currently using somehow gets	1047	/* If a container that the player is currently using somehow gets
1372	* removed (most likely destroyed), update the player view	1048	* removed (most likely destroyed), update the player view
1373	* appropriately.	1049	* appropriately.
1374	*/	1050	*/
1375	if (tmp->container==op) {	1051	if (tmp->container == this)
1376	CLEAR_FLAG(op, FLAG_APPLIED);	1052	{
1377	tmp->container=NULL;	1053	flag [FLAG_APPLIED] = 0;
1378	}	1054	tmp->container = 0;
1379	tmp->contr->socket.update_look=1;	1055	}
1380	}	1056
		1057	if (tmp->contr->ns)
		1058	tmp->contr->ns->floorbox_update ();
		1059	}
		1060
1381	/* See if player moving off should effect something */	1061	/* See if object moving off should effect something */
1382	if (check_walk_off && ((op->move_type & tmp->move_off) &&	1062	if (check_walk_off
		1063	&& ((move_type & tmp->move_off)
1383	(op->move_type & ~tmp->move_off & ~tmp->move_block)==0)) {	1064	&& (move_type & ~tmp->move_off & ~tmp->move_block) == 0))
		1065	{
		1066	move_apply (tmp, this, 0);
1384		1067
1385	move_apply(tmp, op, NULL);	1068	if (destroyed ())
1386	if (was_destroyed (op, tag)) {	1069	LOG (llevError, "BUG: remove_ob(): name %s, destroyed leaving object\n", tmp->debug_desc ());
1387	LOG (llevError, "BUG: remove_ob(): name %s, archname %s destroyed "	1070	}
1388	"leaving object\n", tmp->name, tmp->arch->name);
1389	}
1390	}
1391		1071
1392	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */	1072	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */
1393		1073	//TODO: why is this horrible hacka fix? get rid of this code=bug! (schmorp)
1394	if(tmp->above == tmp)	1074	if (tmp->above == tmp)
1395	tmp->above = NULL;	1075	tmp->above = 0;
1396	last=tmp;	1076
1397	}	1077	last = tmp;
		1078	}
		1079
1398	/* last == NULL of there are no objects on this space */	1080	/* last == NULL if there are no objects on this space */
1399	if (last==NULL) {	1081	//TODO: this makes little sense, why only update the topmost object?
1400	/* set P_NEED_UPDATE, otherwise update_position will complain. In theory,	1082	if (!last)
1401	* we could preserve the flags (GET_MAP_FLAGS), but update_position figures	1083	map->at (x, y).flags_ = P_NEED_UPDATE;
1402	* those out anyways, and if there are any flags set right now, they won't
1403	* be correct anyways.
1404	*/
1405	SET_MAP_FLAGS(op->map, op->x, op->y, P_NEED_UPDATE);
1406	update_position(op->map, op->x, op->y);
1407	}
1408	else	1084	else
1409	update_object(last, UP_OBJ_REMOVE);	1085	update_object (last, UP_OBJ_REMOVE);
1410		1086
1411	if(QUERY_FLAG(op,FLAG_BLOCKSVIEW)|| (op->glow_radius != 0))	1087	if (flag [FLAG_BLOCKSVIEW] || glow_radius)
1412	update_all_los(op->map, op->x, op->y);	1088	update_all_los (map, x, y);
1413		1089	}
1414	}	1090	}
1415		1091
1416	/*	1092	/*
1417	* merge_ob(op,top):	1093	* merge_ob(op,top):
1418	*	1094	*
1419	* This function goes through all objects below and including top, and	1095	* This function goes through all objects below and including top, and
1420	* merges op to the first matching object.	1096	* merges op to the first matching object.
1421	* If top is NULL, it is calculated.	1097	* If top is NULL, it is calculated.
1422	* Returns pointer to object if it succeded in the merge, otherwise NULL	1098	* Returns pointer to object if it succeded in the merge, otherwise NULL
1423	*/	1099	*/
1424		1100	object *
1425	object *merge_ob(object *op, object *top) {	1101	merge_ob (object *op, object *top)
		1102	{
1426	if(!op->nrof)	1103	if (!op->nrof)
1427	return 0;	1104	return 0;
1428	if(top==NULL)	1105
		1106	if (top)
1429	for(top=op;top!=NULL&&top->above!=NULL;top=top->above);	1107	for (top = op; top && top->above; top = top->above)
		1108	;
		1109
1430	for(;top!=NULL;top=top->below) {	1110	for (; top; top = top->below)
		1111	{
1431	if(top==op)	1112	if (top == op)
1432	continue;	1113	continue;
1433	if (CAN_MERGE(op,top))	1114
1434	{	1115	if (object::can_merge (op, top))
		1116	{
1435	top->nrof+=op->nrof;	1117	top->nrof += op->nrof;
		1118
1436	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/	1119	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/
1437	op->weight = 0; /* Don't want any adjustements now */	1120	op->weight = 0; /* Don't want any adjustements now */
1438	remove_ob(op);	1121	op->destroy ();
1439	free_object(op);
1440	return top;	1122	return top;
1441	}	1123	}
1442	}	1124	}
		1125
1443	return NULL;	1126	return 0;
1444	}	1127	}
1445		1128
1446	/*	1129	/*
1447	* same as insert_ob_in_map except it handle separate coordinates and do a clean	1130	* same as insert_ob_in_map except it handle separate coordinates and do a clean
1448	* job preparing multi-part monsters	1131	* job preparing multi-part monsters
1449	*/	1132	*/
		1133	object *
1450	object *insert_ob_in_map_at(object *op, mapstruct *m, object *originator, int flag, int x, int y){	1134	insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)
1451	object* tmp;	1135	{
1452	if (op->head)	1136	for (object *tmp = op->head_ (); tmp; tmp = tmp->more)
1453	op=op->head;	1137	{
1454	for (tmp=op;tmp;tmp=tmp->more){
1455	tmp->x=x+tmp->arch->clone.x;	1138	tmp->x = x + tmp->arch->clone.x;
1456	tmp->y=y+tmp->arch->clone.y;	1139	tmp->y = y + tmp->arch->clone.y;
1457	}	1140	}
		1141
1458	return insert_ob_in_map (op, m, originator, flag);	1142	return insert_ob_in_map (op, m, originator, flag);
1459	}	1143	}
1460		1144
1461	/*	1145	/*
1462	* insert_ob_in_map (op, map, originator, flag):	1146	* insert_ob_in_map (op, map, originator, flag):
1463	* This function inserts the object in the two-way linked list	1147	* This function inserts the object in the two-way linked list
…		…
1476	* Return value:	1160	* Return value:
1477	* new object if 'op' was merged with other object	1161	* new object if 'op' was merged with other object
1478	* NULL if 'op' was destroyed	1162	* NULL if 'op' was destroyed
1479	* just 'op' otherwise	1163	* just 'op' otherwise
1480	*/	1164	*/
1481		1165	object *
1482	object *insert_ob_in_map (object *op, mapstruct *m, object *originator, int flag)	1166	insert_ob_in_map (object *op, maptile *m, object *originator, int flag)
1483	{	1167	{
1484	object *tmp, *top, *floor=NULL;	1168	object *tmp, *top, *floor = NULL;
1485	sint16 x,y;	1169	sint16 x, y;
1486		1170
1487	if (QUERY_FLAG (op, FLAG_FREED)) {	1171	if (QUERY_FLAG (op, FLAG_FREED))
		1172	{
1488	LOG (llevError, "Trying to insert freed object!\n");	1173	LOG (llevError, "Trying to insert freed object!\n");
1489	return NULL;	1174	return NULL;
		1175	}
		1176
		1177	if (!m)
1490	}	1178	{
1491	if(m==NULL) {	1179	char *dump = dump_object (op);
1492	dump_object(op);
1493	LOG(llevError,"Trying to insert in null-map!\n%s\n",errmsg);	1180	LOG (llevError, "Trying to insert in null-map!\n%s\n", dump);
1494	return op;	1181	free (dump);
		1182	return op;
1495	}	1183	}
		1184
1496	if(out_of_map(m,op->x,op->y)) {	1185	if (out_of_map (m, op->x, op->y))
1497	dump_object(op);	1186	{
		1187	char *dump = dump_object (op);
1498	LOG(llevError,"Trying to insert object outside the map.\n%s\n", errmsg);	1188	LOG (llevError, "Trying to insert object outside the map.\n%s\n", dump);
1499	#ifdef MANY_CORES	1189	#ifdef MANY_CORES
1500	/* Better to catch this here, as otherwise the next use of this object	1190	/* Better to catch this here, as otherwise the next use of this object
1501	* is likely to cause a crash. Better to find out where it is getting	1191	* is likely to cause a crash. Better to find out where it is getting
1502	* improperly inserted.	1192	* improperly inserted.
1503	*/	1193	*/
1504	abort();	1194	abort ();
1505	#endif	1195	#endif
1506	return op;	1196	free (dump);
		1197	return op;
1507	}	1198	}
		1199
1508	if(!QUERY_FLAG(op,FLAG_REMOVED)) {	1200	if (!QUERY_FLAG (op, FLAG_REMOVED))
1509	dump_object(op);	1201	{
		1202	char *dump = dump_object (op);
1510	LOG(llevError,"Trying to insert (map) inserted object.\n%s\n", errmsg);	1203	LOG (llevError, "Trying to insert (map) inserted object.\n%s\n", dump);
1511	return op;	1204	free (dump);
		1205	return op;
		1206	}
		1207
		1208	if (op->more)
1512	}	1209	{
1513	if(op->more!=NULL) {
1514	/* The part may be on a different map. */	1210	/* The part may be on a different map. */
1515		1211
1516	object *more = op->more;	1212	object *more = op->more;
1517		1213
1518	/* We really need the caller to normalize coordinates - if	1214	/* We really need the caller to normalize coordinates - if
1519	* we set the map, that doesn't work if the location is within	1215	* we set the map, that doesn't work if the location is within
1520	* a map and this is straddling an edge. So only if coordinate	1216	* a map and this is straddling an edge. So only if coordinate
1521	* is clear wrong do we normalize it.	1217	* is clear wrong do we normalize it.
1522	*/	1218	*/
1523	if (OUT_OF_REAL_MAP(more->map, more->x, more->y)) {	1219	if (OUT_OF_REAL_MAP (more->map, more->x, more->y))
1524	/* Debugging information so you can see the last coordinates this object had */
1525	more->ox = more->x;
1526	more->oy = more->y;
1527	more->map = get_map_from_coord(m, &more->x, &more->y);	1220	more->map = get_map_from_coord (m, &more->x, &more->y);
1528	} else if (!more->map) {	1221	else if (!more->map)
		1222	{
1529	/* For backwards compatibility - when not dealing with tiled maps,	1223	/* For backwards compatibility - when not dealing with tiled maps,
1530	* more->map should always point to the parent.	1224	* more->map should always point to the parent.
1531	*/	1225	*/
1532	more->map = m;	1226	more->map = m;
1533	}	1227	}
1534		1228
1535	if (insert_ob_in_map(more, more->map, originator, flag) == NULL) {	1229	if (insert_ob_in_map (more, more->map, originator, flag) == NULL)
		1230	{
1536	if ( ! op->head)	1231	if (!op->head)
1537	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");	1232	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");
1538	return NULL;	1233
1539	}	1234	return 0;
		1235	}
1540	}	1236	}
		1237
1541	CLEAR_FLAG(op,FLAG_REMOVED);	1238	CLEAR_FLAG (op, FLAG_REMOVED);
1542		1239
1543	/* Debugging information so you can see the last coordinates this object had */
1544	op->ox=op->x;
1545	op->oy=op->y;
1546
1547	/* Ideally, the caller figures this out. However, it complicates a lot	1240	/* Ideally, the caller figures this out. However, it complicates a lot
1548	* of areas of callers (eg, anything that uses find_free_spot would now	1241	* of areas of callers (eg, anything that uses find_free_spot would now
1549	* need extra work	1242	* need extra work
1550	*/	1243	*/
1551	op->map=get_map_from_coord(m, &op->x, &op->y);	1244	op->map = get_map_from_coord (m, &op->x, &op->y);
1552	x = op->x;	1245	x = op->x;
1553	y = op->y;	1246	y = op->y;
1554		1247
1555	/* this has to be done after we translate the coordinates.	1248	/* this has to be done after we translate the coordinates.
1556	*/	1249	*/
1557	if(op->nrof && !(flag & INS_NO_MERGE)) {	1250	if (op->nrof && !(flag & INS_NO_MERGE))
1558	for(tmp=GET_MAP_OB(op->map,x,y);tmp!=NULL;tmp=tmp->above)	1251	for (tmp = GET_MAP_OB (op->map, x, y); tmp; tmp = tmp->above)
1559	if (CAN_MERGE(op,tmp)) {	1252	if (object::can_merge (op, tmp))
1560	op->nrof+=tmp->nrof;	1253	{
1561	remove_ob(tmp);	1254	op->nrof += tmp->nrof;
1562	free_object(tmp);	1255	tmp->destroy ();
1563	}	1256	}
1564	}
1565		1257
1566	CLEAR_FLAG(op,FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */	1258	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */
1567	CLEAR_FLAG(op, FLAG_INV_LOCKED);	1259	CLEAR_FLAG (op, FLAG_INV_LOCKED);
		1260
1568	if (!QUERY_FLAG(op, FLAG_ALIVE))	1261	if (!QUERY_FLAG (op, FLAG_ALIVE))
1569	CLEAR_FLAG(op, FLAG_NO_STEAL);	1262	CLEAR_FLAG (op, FLAG_NO_STEAL);
1570		1263
1571	if (flag & INS_BELOW_ORIGINATOR) {	1264	if (flag & INS_BELOW_ORIGINATOR)
		1265	{
1572	if (originator->map != op->map || originator->x != op->x ||	1266	if (originator->map != op->map || originator->x != op->x || originator->y != op->y)
1573	originator->y != op->y) {	1267	{
1574	LOG(llevError,"insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");	1268	LOG (llevError, "insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");
1575	abort();	1269	abort ();
1576	}	1270	}
		1271
1577	op->above = originator;	1272	op->above = originator;
1578	op->below = originator->below;	1273	op->below = originator->below;
1579	if (op->below) op->below->above = op;	1274
1580	else SET_MAP_OB(op->map, op->x, op->y, op);	1275	if (op->below)
		1276	op->below->above = op;
		1277	else
		1278	op->ms ().bot = op;
		1279
1581	/* since *below* originator, no need to update top */	1280	/* since *below* originator, no need to update top */
1582	originator->below = op;	1281	originator->below = op;
1583	} else {	1282	}
		1283	else
		1284	{
1584	/* If there are other objects, then */	1285	/* If there are other objects, then */
1585	if((! (flag & INS_MAP_LOAD)) && ((top=GET_MAP_OB(op->map,op->x,op->y))!=NULL)) {	1286	if ((!(flag & INS_MAP_LOAD)) && ((top = GET_MAP_OB (op->map, op->x, op->y)) != NULL))
1586	object *last=NULL;	1287	{
1587	/*	1288	object *last = 0;
		1289
		1290	/*
1588	* If there are multiple objects on this space, we do some trickier handling.	1291	* If there are multiple objects on this space, we do some trickier handling.
1589	* We've already dealt with merging if appropriate.	1292	* We've already dealt with merging if appropriate.
1590	* Generally, we want to put the new object on top. But if	1293	* Generally, we want to put the new object on top. But if
1591	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last	1294	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last
1592	* floor, we want to insert above that and no further.	1295	* floor, we want to insert above that and no further.
1593	* Also, if there are spell objects on this space, we stop processing	1296	* Also, if there are spell objects on this space, we stop processing
1594	* once we get to them. This reduces the need to traverse over all of	1297	* once we get to them. This reduces the need to traverse over all of
1595	* them when adding another one - this saves quite a bit of cpu time	1298	* them when adding another one - this saves quite a bit of cpu time
1596	* when lots of spells are cast in one area. Currently, it is presumed	1299	* when lots of spells are cast in one area. Currently, it is presumed
1597	* that flying non pickable objects are spell objects.	1300	* that flying non pickable objects are spell objects.
1598	*/	1301	*/
		1302	while (top)
		1303	{
		1304	if (QUERY_FLAG (top, FLAG_IS_FLOOR) || QUERY_FLAG (top, FLAG_OVERLAY_FLOOR))
		1305	floor = top;
1599		1306
1600	while (top != NULL) {	1307	if (QUERY_FLAG (top, FLAG_NO_PICK) && (top->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (top, FLAG_IS_FLOOR))
1601	if (QUERY_FLAG(top, FLAG_IS_FLOOR) ||
1602	QUERY_FLAG(top, FLAG_OVERLAY_FLOOR)) floor = top;
1603	if (QUERY_FLAG(top, FLAG_NO_PICK)
1604	&& (top->move_type & (MOVE_FLY_LOW |MOVE_FLY_HIGH))
1605	&& !QUERY_FLAG(top, FLAG_IS_FLOOR))
1606	{	1308	{
1607	/* We insert above top, so we want this object below this */	1309	/* We insert above top, so we want this object below this */
1608	top=top->below;	1310	top = top->below;
1609	break;	1311	break;
1610	}	1312	}
1611	last = top;	1313
1612	top = top->above;	1314	last = top;
1613	}	1315	top = top->above;
		1316	}
		1317
1614	/* Don't want top to be NULL, so set it to the last valid object */	1318	/* Don't want top to be NULL, so set it to the last valid object */
1615	top = last;	1319	top = last;
1616		1320
1617	/* We let update_position deal with figuring out what the space	1321	/* We let update_position deal with figuring out what the space
1618	* looks like instead of lots of conditions here.	1322	* looks like instead of lots of conditions here.
1619	* makes things faster, and effectively the same result.	1323	* makes things faster, and effectively the same result.
1620	*/	1324	*/
1621		1325
1622	/* Have object 'fall below' other objects that block view.	1326	/* Have object 'fall below' other objects that block view.
1623	* Unless those objects are exits, type 66	1327	* Unless those objects are exits, type 66
1624	* If INS_ON_TOP is used, don't do this processing	1328	* If INS_ON_TOP is used, don't do this processing
1625	* Need to find the object that in fact blocks view, otherwise	1329	* Need to find the object that in fact blocks view, otherwise
1626	* stacking is a bit odd.	1330	* stacking is a bit odd.
1627	*/	1331	*/
1628	if (!(flag & INS_ON_TOP) &&	1332	if (!(flag & INS_ON_TOP) &&
1629	(get_map_flags(op->map, NULL, op->x, op->y, NULL, NULL) & P_BLOCKSVIEW) &&	1333	(get_map_flags (op->map, 0, op->x, op->y, 0, 0) & P_BLOCKSVIEW) && (op->face && !op->face->visibility))
1630	(op->face && !op->face->visibility)) {	1334	{
1631	for (last=top; last != floor; last=last->below)	1335	for (last = top; last != floor; last = last->below)
1632	if (QUERY_FLAG(last, FLAG_BLOCKSVIEW)&&(last->type != EXIT)) break;	1336	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))
		1337	break;
1633	/* Check to see if we found the object that blocks view,	1338	/* Check to see if we found the object that blocks view,
1634	* and make sure we have a below pointer for it so that	1339	* and make sure we have a below pointer for it so that
1635	* we can get inserted below this one, which requires we	1340	* we can get inserted below this one, which requires we
1636	* set top to the object below us.	1341	* set top to the object below us.
1637	*/	1342	*/
1638	if (last && last->below && last != floor) top=last->below;	1343	if (last && last->below && last != floor)
1639	}	1344	top = last->below;
1640	} /* If objects on this space */	1345	}
		1346	} /* If objects on this space */
		1347
1641	if (flag & INS_MAP_LOAD)	1348	if (flag & INS_MAP_LOAD)
1642	top = GET_MAP_TOP(op->map,op->x,op->y);	1349	top = GET_MAP_TOP (op->map, op->x, op->y);
		1350
1643	if (flag & INS_ABOVE_FLOOR_ONLY) top = floor;	1351	if (flag & INS_ABOVE_FLOOR_ONLY)
		1352	top = floor;
1644		1353
1645	/* Top is the object that our object (op) is going to get inserted above.	1354	/* Top is the object that our object (op) is going to get inserted above.
1646	*/	1355	*/
1647		1356
1648	/* First object on this space */	1357	/* First object on this space */
1649	if (!top) {	1358	if (!top)
		1359	{
1650	op->above = GET_MAP_OB(op->map, op->x, op->y);	1360	op->above = GET_MAP_OB (op->map, op->x, op->y);
1651	if (op->above) op->above->below = op;	1361
1652	op->below = NULL;	1362	if (op->above)
1653	SET_MAP_OB(op->map, op->x, op->y, op);	1363	op->above->below = op;
1654	} else { /* get inserted into the stack above top */	1364
		1365	op->below = 0;
		1366	op->ms ().bot = op;
		1367	}
		1368	else
		1369	{ /* get inserted into the stack above top */
1655	op->above = top->above;	1370	op->above = top->above;
1656	if (op->above) op->above->below = op;	1371
		1372	if (op->above)
		1373	op->above->below = op;
		1374
1657	op->below = top;	1375	op->below = top;
1658	top->above = op;	1376	top->above = op;
1659	}	1377	}
1660	if (op->above==NULL)	1378
1661	SET_MAP_TOP(op->map,op->x, op->y, op);	1379	if (!op->above)
		1380	op->ms ().top = op;
1662	} /* else not INS_BELOW_ORIGINATOR */	1381	} /* else not INS_BELOW_ORIGINATOR */
1663		1382
1664	if(op->type==PLAYER)	1383	if (op->type == PLAYER)
		1384	{
1665	op->contr->do_los=1;	1385	op->contr->do_los = 1;
		1386	++op->map->players;
		1387	op->map->last_access = runtime;
		1388	}
1666		1389
1667	/* If we have a floor, we know the player, if any, will be above	1390	/* If we have a floor, we know the player, if any, will be above
1668	* it, so save a few ticks and start from there.	1391	* it, so save a few ticks and start from there.
1669	*/	1392	*/
1670	if (!(flag & INS_MAP_LOAD))	1393	if (!(flag & INS_MAP_LOAD))
1671	for(tmp=floor?floor:GET_MAP_OB(op->map,op->x,op->y);tmp!=NULL;tmp=tmp->above) {	1394	if (object *pl = op->ms ().player ())
1672	if (tmp->type == PLAYER)	1395	if (pl->contr->ns)
1673	tmp->contr->socket.update_look=1;	1396	pl->contr->ns->floorbox_update ();
1674	}
1675		1397
1676	/* If this object glows, it may affect lighting conditions that are	1398	/* If this object glows, it may affect lighting conditions that are
1677	* visible to others on this map. But update_all_los is really	1399	* visible to others on this map. But update_all_los is really
1678	* an inefficient way to do this, as it means los for all players	1400	* an inefficient way to do this, as it means los for all players
1679	* on the map will get recalculated. The players could very well	1401	* on the map will get recalculated. The players could very well
1680	* be far away from this change and not affected in any way -	1402	* be far away from this change and not affected in any way -
1681	* this should get redone to only look for players within range,	1403	* this should get redone to only look for players within range,
1682	* or just updating the P_NEED_UPDATE for spaces within this area	1404	* or just updating the P_NEED_UPDATE for spaces within this area
1683	* of effect may be sufficient.	1405	* of effect may be sufficient.
1684	*/	1406	*/
1685	if(MAP_DARKNESS(op->map) && (op->glow_radius != 0))	1407	if (op->map->darkness && (op->glow_radius != 0))
1686	update_all_los(op->map, op->x, op->y);	1408	update_all_los (op->map, op->x, op->y);
1687		1409
1688
1689	/* updates flags (blocked, alive, no magic, etc) for this map space */	1410	/* updates flags (blocked, alive, no magic, etc) for this map space */
1690	update_object(op,UP_OBJ_INSERT);	1411	update_object (op, UP_OBJ_INSERT);
1691		1412
		1413	INVOKE_OBJECT (INSERT, op);
1692		1414
1693	/* Don't know if moving this to the end will break anything. However,	1415	/* Don't know if moving this to the end will break anything. However,
1694	* we want to have update_look set above before calling this.	1416	* we want to have floorbox_update called before calling this.
1695	*	1417	*
1696	* check_move_on() must be after this because code called from	1418	* check_move_on() must be after this because code called from
1697	* check_move_on() depends on correct map flags (so functions like	1419	* check_move_on() depends on correct map flags (so functions like
1698	* blocked() and wall() work properly), and these flags are updated by	1420	* blocked() and wall() work properly), and these flags are updated by
1699	* update_object().	1421	* update_object().
1700	*/	1422	*/
1701		1423
1702	/* if this is not the head or flag has been passed, don't check walk on status */	1424	/* if this is not the head or flag has been passed, don't check walk on status */
1703
1704	if (!(flag & INS_NO_WALK_ON) && !op->head) {	1425	if (!(flag & INS_NO_WALK_ON) && !op->head)
		1426	{
1705	if (check_move_on(op, originator))	1427	if (check_move_on (op, originator))
1706	return NULL;	1428	return 0;
1707		1429
1708	/* If we are a multi part object, lets work our way through the check	1430	/* If we are a multi part object, lets work our way through the check
1709	* walk on's.	1431	* walk on's.
1710	*/	1432	*/
1711	for (tmp=op->more; tmp!=NULL; tmp=tmp->more)	1433	for (tmp = op->more; tmp != NULL; tmp = tmp->more)
1712	if (check_move_on (tmp, originator))	1434	if (check_move_on (tmp, originator))
1713	return NULL;	1435	return 0;
1714	}	1436	}
		1437
1715	return op;	1438	return op;
1716	}	1439	}
1717		1440
1718	/* this function inserts an object in the map, but if it	1441	/* this function inserts an object in the map, but if it
1719	* finds an object of its own type, it'll remove that one first.	1442	* finds an object of its own type, it'll remove that one first.
1720	* op is the object to insert it under: supplies x and the map.	1443	* op is the object to insert it under: supplies x and the map.
1721	*/	1444	*/
		1445	void
1722	void replace_insert_ob_in_map(const char *arch_string, object *op) {	1446	replace_insert_ob_in_map (const char *arch_string, object *op)
1723	object *tmp;	1447	{
1724	object *tmp1;	1448	object *tmp, *tmp1;
1725		1449
1726	/* first search for itself and remove any old instances */	1450	/* first search for itself and remove any old instances */
1727		1451
1728	for(tmp=GET_MAP_OB(op->map,op->x,op->y); tmp!=NULL; tmp=tmp->above) {	1452	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)
1729	if(!strcmp(tmp->arch->name,arch_string)) /* same archetype */ {	1453	if (!strcmp (tmp->arch->name, arch_string)) /* same archetype */
1730	remove_ob(tmp);	1454	tmp->destroy ();
1731	free_object(tmp);
1732	}
1733	}
1734		1455
1735	tmp1=arch_to_object(find_archetype(arch_string));	1456	tmp1 = arch_to_object (archetype::find (arch_string));
1736		1457
1737		1458	tmp1->x = op->x;
1738	tmp1->x = op->x; tmp1->y = op->y;	1459	tmp1->y = op->y;
1739	insert_ob_in_map(tmp1,op->map,op,0);	1460	insert_ob_in_map (tmp1, op->map, op, 0);
1740	}	1461	}
		1462
		1463	object *
		1464	object::insert_at (object *where, object *originator, int flags)
		1465	{
		1466	where->map->insert (this, where->x, where->y, originator, flags);
		1467	}
1741		1468
1742	/*	1469	/*
1743	* get_split_ob(ob,nr) splits up ob into two parts. The part which	1470	* get_split_ob(ob,nr) splits up ob into two parts. The part which
1744	* is returned contains nr objects, and the remaining parts contains	1471	* is returned contains nr objects, and the remaining parts contains
1745	* the rest (or is removed and freed if that number is 0).	1472	* the rest (or is removed and freed if that number is 0).
1746	* On failure, NULL is returned, and the reason put into the	1473	* On failure, NULL is returned, and the reason put into the
1747	* global static errmsg array.	1474	* global static errmsg array.
1748	*/	1475	*/
1749		1476	object *
1750	object *get_split_ob(object *orig_ob, uint32 nr) {	1477	get_split_ob (object *orig_ob, uint32 nr)
		1478	{
1751	object *newob;	1479	object *newob;
1752	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);	1480	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);
1753		1481
1754	if(orig_ob->nrof<nr) {	1482	if (orig_ob->nrof < nr)
1755	sprintf(errmsg,"There are only %d %ss.",
1756	orig_ob->nrof?orig_ob->nrof:1, orig_ob->name);
1757	return NULL;
1758	}	1483	{
		1484	sprintf (errmsg, "There are only %d %ss.", orig_ob->nrof ? orig_ob->nrof : 1, &orig_ob->name);
		1485	return NULL;
		1486	}
		1487
1759	newob = object_create_clone(orig_ob);	1488	newob = object_create_clone (orig_ob);
		1489
1760	if((orig_ob->nrof-=nr)<1) {	1490	if ((orig_ob->nrof -= nr) < 1)
1761	if ( ! is_removed)	1491	orig_ob->destroy (1);
1762	remove_ob(orig_ob);
1763	free_object2(orig_ob, 1);
1764	}
1765	else if ( ! is_removed) {	1492	else if (!is_removed)
		1493	{
1766	if(orig_ob->env!=NULL)	1494	if (orig_ob->env != NULL)
1767	sub_weight (orig_ob->env,orig_ob->weight*nr);	1495	sub_weight (orig_ob->env, orig_ob->weight * nr);
1768	if (orig_ob->env == NULL && orig_ob->map->in_memory!=MAP_IN_MEMORY) {	1496	if (orig_ob->env == NULL && orig_ob->map->in_memory != MAP_IN_MEMORY)
		1497	{
1769	strcpy(errmsg, "Tried to split object whose map is not in memory.");	1498	strcpy (errmsg, "Tried to split object whose map is not in memory.");
1770	LOG(llevDebug,
1771	"Error, Tried to split object whose map is not in memory.\n");	1499	LOG (llevDebug, "Error, Tried to split object whose map is not in memory.\n");
1772	return NULL;	1500	return NULL;
1773	}	1501	}
1774	}	1502	}
		1503
1775	newob->nrof=nr;	1504	newob->nrof = nr;
1776		1505
1777	return newob;	1506	return newob;
1778	}	1507	}
1779		1508
1780	/*	1509	/*
1781	* decrease_ob_nr(object, number) decreases a specified number from	1510	* decrease_ob_nr(object, number) decreases a specified number from
1782	* the amount of an object. If the amount reaches 0, the object	1511	* the amount of an object. If the amount reaches 0, the object
1783	* is subsequently removed and freed.	1512	* is subsequently removed and freed.
1784	*	1513	*
1785	* Return value: 'op' if something is left, NULL if the amount reached 0	1514	* Return value: 'op' if something is left, NULL if the amount reached 0
1786	*/	1515	*/
1787		1516
		1517	object *
1788	object *decrease_ob_nr (object *op, uint32 i)	1518	decrease_ob_nr (object *op, uint32 i)
1789	{	1519	{
1790	object *tmp;	1520	object *tmp;
1791	player *pl;
1792		1521
1793	if (i == 0) /* objects with op->nrof require this check */	1522	if (i == 0) /* objects with op->nrof require this check */
1794	return op;	1523	return op;
1795		1524
1796	if (i > op->nrof)	1525	if (i > op->nrof)
1797	i = op->nrof;	1526	i = op->nrof;
1798		1527
1799	if (QUERY_FLAG (op, FLAG_REMOVED))	1528	if (QUERY_FLAG (op, FLAG_REMOVED))
		1529	op->nrof -= i;
		1530	else if (op->env)
		1531	{
		1532	/* is this object in the players inventory, or sub container
		1533	* therein?
		1534	*/
		1535	tmp = op->in_player ();
		1536	/* nope. Is this a container the player has opened?
		1537	* If so, set tmp to that player.
		1538	* IMO, searching through all the players will mostly
		1539	* likely be quicker than following op->env to the map,
		1540	* and then searching the map for a player.
		1541	*/
		1542	if (!tmp)
		1543	for_all_players (pl)
		1544	if (pl->ob->container == op->env)
		1545	{
		1546	tmp = pl->ob;
		1547	break;
		1548	}
		1549
		1550	if (i < op->nrof)
		1551	{
		1552	sub_weight (op->env, op->weight * i);
		1553	op->nrof -= i;
		1554	if (tmp)
		1555	esrv_send_item (tmp, op);
		1556	}
		1557	else
		1558	{
		1559	op->remove ();
		1560	op->nrof = 0;
		1561	if (tmp)
		1562	esrv_del_item (tmp->contr, op->count);
		1563	}
1800	{	1564	}
		1565	else
		1566	{
		1567	object *above = op->above;
		1568
		1569	if (i < op->nrof)
1801	op->nrof -= i;	1570	op->nrof -= i;
1802	}	1571	else
1803	else if (op->env != NULL)	1572	{
1804	{	1573	op->remove ();
1805	/* is this object in the players inventory, or sub container
1806	* therein?
1807	*/
1808	tmp = is_player_inv (op->env);
1809	/* nope. Is this a container the player has opened?
1810	* If so, set tmp to that player.
1811	* IMO, searching through all the players will mostly
1812	* likely be quicker than following op->env to the map,
1813	* and then searching the map for a player.
1814	*/
1815	if (!tmp) {
1816	for (pl=first_player; pl; pl=pl->next)
1817	if (pl->ob->container == op->env) break;
1818	if (pl) tmp=pl->ob;
1819	else tmp=NULL;
1820	}
1821
1822	if (i < op->nrof) {
1823	sub_weight (op->env, op->weight * i);
1824	op->nrof -= i;	1574	op->nrof = 0;
		1575	}
		1576
		1577	/* Since we just removed op, op->above is null */
		1578	for (tmp = above; tmp; tmp = tmp->above)
		1579	if (tmp->type == PLAYER)
		1580	{
1825	if (tmp) {	1581	if (op->nrof)
1826	esrv_send_item(tmp, op);	1582	esrv_send_item (tmp, op);
1827	}	1583	else
1828	} else {
1829	remove_ob (op);
1830	op->nrof = 0;
1831	if (tmp) {
1832	esrv_del_item(tmp->contr, op->count);	1584	esrv_del_item (tmp->contr, op->count);
1833	}	1585	}
1834	}
1835	}
1836	else
1837	{	1586	}
1838	object *above = op->above;
1839		1587
1840	if (i < op->nrof) {
1841	op->nrof -= i;
1842	} else {
1843	remove_ob (op);
1844	op->nrof = 0;
1845	}
1846	/* Since we just removed op, op->above is null */
1847	for (tmp = above; tmp != NULL; tmp = tmp->above)
1848	if (tmp->type == PLAYER) {
1849	if (op->nrof)
1850	esrv_send_item(tmp, op);
1851	else
1852	esrv_del_item(tmp->contr, op->count);
1853	}
1854	}
1855
1856	if (op->nrof) {	1588	if (op->nrof)
1857	return op;	1589	return op;
1858	} else {	1590	else
1859	free_object (op);	1591	{
		1592	op->destroy ();
1860	return NULL;	1593	return 0;
1861	}	1594	}
1862	}	1595	}
1863		1596
1864	/*	1597	/*
1865	* add_weight(object, weight) adds the specified weight to an object,	1598	* add_weight(object, weight) adds the specified weight to an object,
1866	* and also updates how much the environment(s) is/are carrying.	1599	* and also updates how much the environment(s) is/are carrying.
1867	*/	1600	*/
1868		1601
		1602	void
1869	void add_weight (object *op, signed long weight) {	1603	add_weight (object *op, signed long weight)
		1604	{
1870	while (op!=NULL) {	1605	while (op != NULL)
		1606	{
1871	if (op->type == CONTAINER) {	1607	if (op->type == CONTAINER)
1872	weight=(signed long)(weight*(100-op->stats.Str)/100);	1608	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1873	}	1609
1874	op->carrying+=weight;	1610	op->carrying += weight;
1875	op=op->env;	1611	op = op->env;
1876	}	1612	}
1877	}	1613	}
1878		1614
		1615	object *
		1616	insert_ob_in_ob (object *op, object *where)
		1617	{
		1618	if (!where)
		1619	{
		1620	char *dump = dump_object (op);
		1621	LOG (llevError, "Trying to put object in NULL.\n%s\n", dump);
		1622	free (dump);
		1623	return op;
		1624	}
		1625
		1626	if (where->head)
		1627	{
		1628	LOG (llevDebug, "Warning: Tried to insert object into wrong part of multipart object.\n");
		1629	where = where->head;
		1630	}
		1631
		1632	return where->insert (op);
		1633	}
		1634
1879	/*	1635	/*
1880	* insert_ob_in_ob(op,environment):	1636	* env->insert (op)
1881	* This function inserts the object op in the linked list	1637	* This function inserts the object op in the linked list
1882	* inside the object environment.	1638	* inside the object environment.
1883	*	1639	*
1884	* Eneq(@csd.uu.se): Altered insert_ob_in_ob to make things picked up enter
1885	* the inventory at the last position or next to other objects of the same
1886	* type.
1887	* Frank: Now sorted by type, archetype and magic!
1888	*
1889	* The function returns now pointer to inserted item, and return value can	1640	* The function returns now pointer to inserted item, and return value can
1890	* be != op, if items are merged. -Tero	1641	* be != op, if items are merged. -Tero
1891	*/	1642	*/
1892		1643
1893	object *insert_ob_in_ob(object *op,object *where) {	1644	object *
		1645	object::insert (object *op)
		1646	{
1894	object *tmp, *otmp;	1647	object *tmp, *otmp;
1895		1648
1896	if(!QUERY_FLAG(op,FLAG_REMOVED)) {	1649	if (!QUERY_FLAG (op, FLAG_REMOVED))
1897	dump_object(op);	1650	op->remove ();
1898	LOG(llevError,"Trying to insert (ob) inserted object.\n%s\n", errmsg);	1651
1899	return op;
1900	}
1901	if(where==NULL) {
1902	dump_object(op);
1903	LOG(llevError,"Trying to put object in NULL.\n%s\n", errmsg);
1904	return op;
1905	}
1906	if (where->head) {
1907	LOG(llevDebug,
1908	"Warning: Tried to insert object wrong part of multipart object.\n");
1909	where = where->head;
1910	}
1911	if (op->more) {	1652	if (op->more)
		1653	{
1912	LOG(llevError, "Tried to insert multipart object %s (%d)\n",	1654	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);
1913	op->name, op->count);
1914	return op;	1655	return op;
1915	}	1656	}
		1657
1916	CLEAR_FLAG(op, FLAG_OBJ_ORIGINAL);	1658	CLEAR_FLAG (op, FLAG_OBJ_ORIGINAL);
1917	CLEAR_FLAG(op, FLAG_REMOVED);	1659	CLEAR_FLAG (op, FLAG_REMOVED);
1918	if(op->nrof) {	1660	if (op->nrof)
		1661	{
1919	for(tmp=where->inv;tmp!=NULL;tmp=tmp->below)	1662	for (tmp = inv; tmp != NULL; tmp = tmp->below)
1920	if ( CAN_MERGE(tmp,op) ) {	1663	if (object::can_merge (tmp, op))
		1664	{
1921	/* return the original object and remove inserted object	1665	/* return the original object and remove inserted object
1922	(client needs the original object) */	1666	(client needs the original object) */
1923	tmp->nrof += op->nrof;	1667	tmp->nrof += op->nrof;
1924	/* Weight handling gets pretty funky. Since we are adding to	1668	/* Weight handling gets pretty funky. Since we are adding to
1925	* tmp->nrof, we need to increase the weight.	1669	* tmp->nrof, we need to increase the weight.
1926	*/	1670	*/
1927	add_weight (where, op->weight*op->nrof);	1671	add_weight (this, op->weight * op->nrof);
1928	SET_FLAG(op, FLAG_REMOVED);	1672	SET_FLAG (op, FLAG_REMOVED);
1929	free_object(op); /* free the inserted object */	1673	op->destroy (); /* free the inserted object */
1930	op = tmp;	1674	op = tmp;
1931	remove_ob (op); /* and fix old object's links */	1675	op->remove (); /* and fix old object's links */
1932	CLEAR_FLAG(op, FLAG_REMOVED);	1676	CLEAR_FLAG (op, FLAG_REMOVED);
1933	break;	1677	break;
1934	}	1678	}
1935		1679
1936	/* I assume combined objects have no inventory	1680	/* I assume combined objects have no inventory
1937	* We add the weight - this object could have just been removed	1681	* We add the weight - this object could have just been removed
1938	* (if it was possible to merge). calling remove_ob will subtract	1682	* (if it was possible to merge). calling remove_ob will subtract
1939	* the weight, so we need to add it in again, since we actually do	1683	* the weight, so we need to add it in again, since we actually do
1940	* the linking below	1684	* the linking below
1941	*/	1685	*/
1942	add_weight (where, op->weight*op->nrof);	1686	add_weight (this, op->weight * op->nrof);
		1687	}
1943	} else	1688	else
1944	add_weight (where, (op->weight+op->carrying));	1689	add_weight (this, (op->weight + op->carrying));
1945		1690
1946	otmp=is_player_inv(where);	1691	otmp = this->in_player ();
1947	if (otmp&&otmp->contr!=NULL) {	1692	if (otmp && otmp->contr)
1948	if (!QUERY_FLAG(otmp,FLAG_NO_FIX_PLAYER))	1693	if (!QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1949	fix_player(otmp);	1694	otmp->update_stats ();
1950	}
1951		1695
1952	op->map=NULL;	1696	op->map = 0;
1953	op->env=where;	1697	op->env = this;
1954	op->above=NULL;	1698	op->above = 0;
1955	op->below=NULL;	1699	op->below = 0;
1956	op->x=0,op->y=0;	1700	op->x = 0, op->y = 0;
1957	op->ox=0,op->oy=0;
1958		1701
1959	/* reset the light list and los of the players on the map */	1702	/* reset the light list and los of the players on the map */
1960	if((op->glow_radius!=0)&&where->map)	1703	if ((op->glow_radius != 0) && map)
1961	{	1704	{
1962	#ifdef DEBUG_LIGHTS	1705	#ifdef DEBUG_LIGHTS
1963	LOG(llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n",	1706	LOG (llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n", op->name);
1964	op->name);
1965	#endif /* DEBUG_LIGHTS */	1707	#endif /* DEBUG_LIGHTS */
1966	if (MAP_DARKNESS(where->map)) update_all_los(where->map, where->x, where->y);	1708	if (map->darkness)
		1709	update_all_los (map, x, y);
1967	}	1710	}
1968		1711
1969	/* Client has no idea of ordering so lets not bother ordering it here.	1712	/* Client has no idea of ordering so lets not bother ordering it here.
1970	* It sure simplifies this function...	1713	* It sure simplifies this function...
1971	*/	1714	*/
1972	if (where->inv==NULL)	1715	if (!inv)
1973	where->inv=op;	1716	inv = op;
1974	else {	1717	else
		1718	{
1975	op->below = where->inv;	1719	op->below = inv;
1976	op->below->above = op;	1720	op->below->above = op;
1977	where->inv = op;	1721	inv = op;
1978	}	1722	}
		1723
		1724	INVOKE_OBJECT (INSERT, this);
		1725
1979	return op;	1726	return op;
1980	}	1727	}
1981		1728
1982	/*	1729	/*
1983	* Checks if any objects has a move_type that matches objects	1730	* Checks if any objects has a move_type that matches objects
…		…
1997	*	1744	*
1998	* MSW 2001-07-08: Check all objects on space, not just those below	1745	* MSW 2001-07-08: Check all objects on space, not just those below
1999	* object being inserted. insert_ob_in_map may not put new objects	1746	* object being inserted. insert_ob_in_map may not put new objects
2000	* on top.	1747	* on top.
2001	*/	1748	*/
2002		1749	int
2003	int check_move_on (object *op, object *originator)	1750	check_move_on (object *op, object *originator)
2004	{	1751	{
2005	object *tmp;	1752	object *tmp;
2006	tag_t tag;
2007	mapstruct *m=op->map;	1753	maptile *m = op->map;
2008	int x=op->x, y=op->y;	1754	int x = op->x, y = op->y;
		1755
2009	MoveType move_on, move_slow, move_block;	1756	MoveType move_on, move_slow, move_block;
2010		1757
2011	if(QUERY_FLAG(op,FLAG_NO_APPLY))	1758	if (QUERY_FLAG (op, FLAG_NO_APPLY))
2012	return 0;
2013
2014	tag = op->count;
2015
2016	move_on = GET_MAP_MOVE_ON(op->map, op->x, op->y);
2017	move_slow = GET_MAP_MOVE_SLOW(op->map, op->x, op->y);
2018	move_block = GET_MAP_MOVE_BLOCK(op->map, op->x, op->y);
2019
2020	/* if nothing on this space will slow op down or be applied,
2021	* no need to do checking below. have to make sure move_type
2022	* is set, as lots of objects don't have it set - we treat that
2023	* as walking.
2024	*/
2025	if (op->move_type && !(op->move_type & move_on) && !(op->move_type & move_slow))
2026	return 0;
2027
2028	/* This is basically inverse logic of that below - basically,
2029	* if the object can avoid the move on or slow move, they do so,
2030	* but can't do it if the alternate movement they are using is
2031	* blocked. Logic on this seems confusing, but does seem correct.
2032	*/
2033	if ((op->move_type & ~move_on & ~move_block) != 0 &&
2034	(op->move_type & ~move_slow & ~move_block) != 0) return 0;
2035
2036	/* The objects have to be checked from top to bottom.
2037	* Hence, we first go to the top:
2038	*/
2039
2040	for (tmp=GET_MAP_OB(op->map, op->x, op->y); tmp!=NULL &&
2041	tmp->above!=NULL; tmp=tmp->above) {
2042	/* Trim the search when we find the first other spell effect
2043	* this helps performance so that if a space has 50 spell objects,
2044	* we don't need to check all of them.
2045	*/
2046	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG(tmp, FLAG_NO_PICK)) break;
2047	}
2048	for(;tmp!=NULL; tmp=tmp->below) {
2049	if (tmp == op) continue; /* Can't apply yourself */
2050
2051	/* Check to see if one of the movement types should be slowed down.
2052	* Second check makes sure that the movement types not being slowed
2053	* (~slow_move) is not blocked on this space - just because the
2054	* space doesn't slow down swimming (for example), if you can't actually
2055	* swim on that space, can't use it to avoid the penalty.
2056	*/
2057	if (!QUERY_FLAG(op, FLAG_WIZPASS)) {
2058	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||
2059	((op->move_type & tmp->move_slow) &&
2060	(op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0)) {
2061
2062	float diff;
2063
2064	diff = tmp->move_slow_penalty*FABS(op->speed);
2065	if (op->type == PLAYER) {
2066	if ((QUERY_FLAG(tmp, FLAG_IS_HILLY) && find_skill_by_number(op, SK_CLIMBING)) ||
2067	(QUERY_FLAG(tmp, FLAG_IS_WOODED) && find_skill_by_number(op, SK_WOODSMAN))) {
2068	diff /= 4.0;
2069	}
2070	}
2071	op->speed_left -= diff;
2072	}
2073	}
2074
2075	/* Basically same logic as above, except now for actual apply. */
2076	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||
2077	((op->move_type & tmp->move_on) &&
2078	(op->move_type & ~tmp->move_on & ~tmp->move_block)==0)) {
2079
2080	move_apply(tmp, op, originator);
2081	if (was_destroyed (op, tag))
2082	return 1;
2083
2084	/* what the person/creature stepped onto has moved the object
2085	* someplace new. Don't process any further - if we did,
2086	* have a feeling strange problems would result.
2087	*/
2088	if (op->map != m || op->x != x || op->y != y) return 0;
2089	}
2090	}
2091	return 0;	1759	return 0;
		1760
		1761	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);
		1762	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);
		1763	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);
		1764
		1765	/* if nothing on this space will slow op down or be applied,
		1766	* no need to do checking below. have to make sure move_type
		1767	* is set, as lots of objects don't have it set - we treat that
		1768	* as walking.
		1769	*/
		1770	if (op->move_type && !(op->move_type & move_on) && !(op->move_type & move_slow))
		1771	return 0;
		1772
		1773	/* This is basically inverse logic of that below - basically,
		1774	* if the object can avoid the move on or slow move, they do so,
		1775	* but can't do it if the alternate movement they are using is
		1776	* blocked. Logic on this seems confusing, but does seem correct.
		1777	*/
		1778	if ((op->move_type & ~move_on & ~move_block) != 0 && (op->move_type & ~move_slow & ~move_block) != 0)
		1779	return 0;
		1780
		1781	/* The objects have to be checked from top to bottom.
		1782	* Hence, we first go to the top:
		1783	*/
		1784
		1785	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp && tmp->above; tmp = tmp->above)
		1786	{
		1787	/* Trim the search when we find the first other spell effect
		1788	* this helps performance so that if a space has 50 spell objects,
		1789	* we don't need to check all of them.
		1790	*/
		1791	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG (tmp, FLAG_NO_PICK))
		1792	break;
		1793	}
		1794
		1795	for (; tmp; tmp = tmp->below)
		1796	{
		1797	if (tmp == op)
		1798	continue; /* Can't apply yourself */
		1799
		1800	/* Check to see if one of the movement types should be slowed down.
		1801	* Second check makes sure that the movement types not being slowed
		1802	* (~slow_move) is not blocked on this space - just because the
		1803	* space doesn't slow down swimming (for example), if you can't actually
		1804	* swim on that space, can't use it to avoid the penalty.
		1805	*/
		1806	if (!QUERY_FLAG (op, FLAG_WIZPASS))
		1807	{
		1808	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||
		1809	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))
		1810	{
		1811
		1812	float
		1813	diff = tmp->move_slow_penalty * FABS (op->speed);
		1814
		1815	if (op->type == PLAYER)
		1816	if ((QUERY_FLAG (tmp, FLAG_IS_HILLY) && find_skill_by_number (op, SK_CLIMBING)) ||
		1817	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))
		1818	diff /= 4.0;
		1819
		1820	op->speed_left -= diff;
		1821	}
		1822	}
		1823
		1824	/* Basically same logic as above, except now for actual apply. */
		1825	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||
		1826	((op->move_type & tmp->move_on) && (op->move_type & ~tmp->move_on & ~tmp->move_block) == 0))
		1827	{
		1828	move_apply (tmp, op, originator);
		1829
		1830	if (op->destroyed ())
		1831	return 1;
		1832
		1833	/* what the person/creature stepped onto has moved the object
		1834	* someplace new. Don't process any further - if we did,
		1835	* have a feeling strange problems would result.
		1836	*/
		1837	if (op->map != m || op->x != x || op->y != y)
		1838	return 0;
		1839	}
		1840	}
		1841
		1842	return 0;
2092	}	1843	}
2093		1844
2094	/*	1845	/*
2095	* present_arch(arch, map, x, y) searches for any objects with	1846	* present_arch(arch, map, x, y) searches for any objects with
2096	* a matching archetype at the given map and coordinates.	1847	* a matching archetype at the given map and coordinates.
2097	* The first matching object is returned, or NULL if none.	1848	* The first matching object is returned, or NULL if none.
2098	*/	1849	*/
2099		1850	object *
2100	object *present_arch(const archetype *at, mapstruct *m, int x, int y) {	1851	present_arch (const archetype *at, maptile *m, int x, int y)
2101	object *tmp;	1852	{
2102	if(m==NULL || out_of_map(m,x,y)) {	1853	if (m == NULL || out_of_map (m, x, y))
		1854	{
2103	LOG(llevError,"Present_arch called outside map.\n");	1855	LOG (llevError, "Present_arch called outside map.\n");
2104	return NULL;	1856	return NULL;
2105	}	1857	}
		1858
2106	for(tmp=GET_MAP_OB(m,x,y); tmp != NULL; tmp = tmp->above)	1859	for (object *tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)
2107	if(tmp->arch == at)	1860	if (tmp->arch == at)
2108	return tmp;	1861	return tmp;
		1862
2109	return NULL;	1863	return NULL;
2110	}	1864	}
2111		1865
2112	/*	1866	/*
2113	* present(type, map, x, y) searches for any objects with	1867	* present(type, map, x, y) searches for any objects with
2114	* a matching type variable at the given map and coordinates.	1868	* a matching type variable at the given map and coordinates.
2115	* The first matching object is returned, or NULL if none.	1869	* The first matching object is returned, or NULL if none.
2116	*/	1870	*/
2117		1871	object *
2118	object *present(unsigned char type,mapstruct *m, int x,int y) {	1872	present (unsigned char type, maptile *m, int x, int y)
2119	object *tmp;	1873	{
2120	if(out_of_map(m,x,y)) {	1874	if (out_of_map (m, x, y))
		1875	{
2121	LOG(llevError,"Present called outside map.\n");	1876	LOG (llevError, "Present called outside map.\n");
2122	return NULL;	1877	return NULL;
2123	}	1878	}
		1879
2124	for(tmp=GET_MAP_OB(m,x,y);tmp!=NULL;tmp=tmp->above)	1880	for (object *tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)
2125	if(tmp->type==type)	1881	if (tmp->type == type)
2126	return tmp;	1882	return tmp;
		1883
2127	return NULL;	1884	return NULL;
2128	}	1885	}
2129		1886
2130	/*	1887	/*
2131	* present_in_ob(type, object) searches for any objects with	1888	* present_in_ob(type, object) searches for any objects with
2132	* a matching type variable in the inventory of the given object.	1889	* a matching type variable in the inventory of the given object.
2133	* The first matching object is returned, or NULL if none.	1890	* The first matching object is returned, or NULL if none.
2134	*/	1891	*/
2135		1892	object *
2136	object *present_in_ob(unsigned char type, const object *op) {	1893	present_in_ob (unsigned char type, const object *op)
2137	object *tmp;	1894	{
2138	for(tmp=op->inv;tmp!=NULL;tmp=tmp->below)	1895	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
2139	if(tmp->type==type)	1896	if (tmp->type == type)
2140	return tmp;	1897	return tmp;
		1898
2141	return NULL;	1899	return NULL;
2142	}	1900	}
2143		1901
2144	/*	1902	/*
2145	* present_in_ob (type, str, object) searches for any objects with	1903	* present_in_ob (type, str, object) searches for any objects with
…		…
2153	* str is the string to match against. Note that we match against	1911	* str is the string to match against. Note that we match against
2154	* the object name, not the archetype name. this is so that the	1912	* the object name, not the archetype name. this is so that the
2155	* spell code can use one object type (force), but change it's name	1913	* spell code can use one object type (force), but change it's name
2156	* to be unique.	1914	* to be unique.
2157	*/	1915	*/
2158		1916	object *
2159	object *present_in_ob_by_name(int type, const char *str, const object *op) {	1917	present_in_ob_by_name (int type, const char *str, const object *op)
2160	object *tmp;	1918	{
2161
2162	for(tmp=op->inv; tmp!=NULL; tmp=tmp->below) {	1919	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2163	if ((type==-1 || tmp->type==type) && (!strcmp(str, tmp->name)))	1920	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))
2164	return tmp;	1921	return tmp;
2165	}	1922
2166	return NULL;	1923	return 0;
2167	}	1924	}
2168		1925
2169	/*	1926	/*
2170	* present_arch_in_ob(archetype, object) searches for any objects with	1927	* present_arch_in_ob(archetype, object) searches for any objects with
2171	* a matching archetype in the inventory of the given object.	1928	* a matching archetype in the inventory of the given object.
2172	* The first matching object is returned, or NULL if none.	1929	* The first matching object is returned, or NULL if none.
2173	*/	1930	*/
2174		1931	object *
2175	object *present_arch_in_ob(const archetype *at, const object *op) {	1932	present_arch_in_ob (const archetype *at, const object *op)
2176	object *tmp;	1933	{
2177	for(tmp=op->inv;tmp!=NULL;tmp=tmp->below)	1934	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
2178	if( tmp->arch == at)	1935	if (tmp->arch == at)
2179	return tmp;	1936	return tmp;
		1937
2180	return NULL;	1938	return NULL;
2181	}	1939	}
2182		1940
2183	/*	1941	/*
2184	* activate recursively a flag on an object inventory	1942	* activate recursively a flag on an object inventory
2185	*/	1943	*/
		1944	void
2186	void flag_inv(object*op, int flag){	1945	flag_inv (object *op, int flag)
2187	object *tmp;	1946	{
2188	if(op->inv)	1947	if (op->inv)
2189	for(tmp = op->inv; tmp != NULL; tmp = tmp->below){	1948	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
		1949	{
2190	SET_FLAG(tmp, flag);	1950	SET_FLAG (tmp, flag);
2191	flag_inv(tmp,flag);	1951	flag_inv (tmp, flag);
2192	}	1952	}
		1953	}
		1954
2193	}/*	1955	/*
2194	* desactivate recursively a flag on an object inventory	1956	* deactivate recursively a flag on an object inventory
2195	*/	1957	*/
		1958	void
2196	void unflag_inv(object*op, int flag){	1959	unflag_inv (object *op, int flag)
2197	object *tmp;	1960	{
2198	if(op->inv)	1961	if (op->inv)
2199	for(tmp = op->inv; tmp != NULL; tmp = tmp->below){	1962	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
		1963	{
2200	CLEAR_FLAG(tmp, flag);	1964	CLEAR_FLAG (tmp, flag);
2201	unflag_inv(tmp,flag);	1965	unflag_inv (tmp, flag);
2202	}	1966	}
2203	}	1967	}
2204		1968
2205	/*	1969	/*
2206	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in	1970	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in
2207	* all it's inventory (recursively).	1971	* all it's inventory (recursively).
2208	* If checksums are used, a player will get set_cheat called for	1972	* If checksums are used, a player will get set_cheat called for
2209	* him/her-self and all object carried by a call to this function.	1973	* him/her-self and all object carried by a call to this function.
2210	*/	1974	*/
2211		1975	void
2212	void set_cheat(object *op) {	1976	set_cheat (object *op)
		1977	{
2213	SET_FLAG(op, FLAG_WAS_WIZ);	1978	SET_FLAG (op, FLAG_WAS_WIZ);
2214	flag_inv(op, FLAG_WAS_WIZ);	1979	flag_inv (op, FLAG_WAS_WIZ);
2215	}	1980	}
2216		1981
2217	/*	1982	/*
2218	* find_free_spot(object, map, x, y, start, stop) will search for	1983	* find_free_spot(object, map, x, y, start, stop) will search for
2219	* a spot at the given map and coordinates which will be able to contain	1984	* a spot at the given map and coordinates which will be able to contain
…		…
2233	* because arch_blocked (now ob_blocked) needs to know the movement type	1998	* because arch_blocked (now ob_blocked) needs to know the movement type
2234	* to know if the space in question will block the object. We can't use	1999	* to know if the space in question will block the object. We can't use
2235	* the archetype because that isn't correct if the monster has been	2000	* the archetype because that isn't correct if the monster has been
2236	* customized, changed states, etc.	2001	* customized, changed states, etc.
2237	*/	2002	*/
2238		2003	int
2239	int find_free_spot(const object *ob, mapstruct *m,int x,int y,int start,int stop) {	2004	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)
		2005	{
2240	int i,index=0, flag;	2006	int index = 0, flag;
2241	static int altern[SIZEOFFREE];	2007	int altern[SIZEOFFREE];
2242		2008
2243	for(i=start;i<stop;i++) {	2009	for (int i = start; i < stop; i++)
		2010	{
2244	flag = ob_blocked(ob,m,x+freearr_x[i],y+freearr_y[i]);	2011	flag = ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]);
2245	if(!flag)	2012	if (!flag)
2246	altern[index++]=i;	2013	altern [index++] = i;
2247		2014
2248	/* Basically, if we find a wall on a space, we cut down the search size.	2015	/* Basically, if we find a wall on a space, we cut down the search size.
2249	* In this way, we won't return spaces that are on another side of a wall.	2016	* In this way, we won't return spaces that are on another side of a wall.
2250	* This mostly work, but it cuts down the search size in all directions -	2017	* This mostly work, but it cuts down the search size in all directions -
2251	* if the space being examined only has a wall to the north and empty	2018	* if the space being examined only has a wall to the north and empty
2252	* spaces in all the other directions, this will reduce the search space	2019	* spaces in all the other directions, this will reduce the search space
2253	* to only the spaces immediately surrounding the target area, and	2020	* to only the spaces immediately surrounding the target area, and
2254	* won't look 2 spaces south of the target space.	2021	* won't look 2 spaces south of the target space.
2255	*/	2022	*/
2256	else if ((flag & AB_NO_PASS) && maxfree[i]<stop)	2023	else if ((flag & P_NO_PASS) && maxfree[i] < stop)
2257	stop=maxfree[i];	2024	stop = maxfree[i];
2258	}	2025	}
2259	if(!index) return -1;	2026
		2027	if (!index)
		2028	return -1;
		2029
2260	return altern[RANDOM()%index];	2030	return altern[RANDOM () % index];
2261	}	2031	}
2262		2032
2263	/*	2033	/*
2264	* find_first_free_spot(archetype, mapstruct, x, y) works like	2034	* find_first_free_spot(archetype, maptile, x, y) works like
2265	* find_free_spot(), but it will search max number of squares.	2035	* find_free_spot(), but it will search max number of squares.
2266	* But it will return the first available spot, not a random choice.	2036	* But it will return the first available spot, not a random choice.
2267	* Changed 0.93.2: Have it return -1 if there is no free spot available.	2037	* Changed 0.93.2: Have it return -1 if there is no free spot available.
2268	*/	2038	*/
2269		2039	int
2270	int find_first_free_spot(const object *ob, mapstruct *m,int x,int y) {	2040	find_first_free_spot (const object *ob, maptile *m, int x, int y)
2271	int i;	2041	{
2272	for(i=0;i<SIZEOFFREE;i++) {	2042	for (int i = 0; i < SIZEOFFREE; i++)
2273	if(!ob_blocked(ob,m,x+freearr_x[i],y+freearr_y[i]))	2043	if (!ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]))
2274	return i;	2044	return i;
2275	}	2045
2276	return -1;	2046	return -1;
2277	}	2047	}
2278		2048
2279	/*	2049	/*
2280	* The function permute(arr, begin, end) randomly reorders the array	2050	* The function permute(arr, begin, end) randomly reorders the array
2281	* arr[begin..end-1].	2051	* arr[begin..end-1].
		2052	* now uses a fisher-yates shuffle, old permute was broken
2282	*/	2053	*/
		2054	static void
2283	static void permute(int *arr, int begin, int end)	2055	permute (int *arr, int begin, int end)
2284	{	2056	{
2285	int i, j, tmp, len;	2057	arr += begin;
		2058	end -= begin;
2286		2059
2287	len = end-begin;	2060	while (--end)
2288	for(i = begin; i < end; i++)	2061	swap (arr [end], arr [RANDOM () % (end + 1)]);
2289	{
2290	j = begin+RANDOM()%len;
2291
2292	tmp = arr[i];
2293	arr[i] = arr[j];
2294	arr[j] = tmp;
2295	}
2296	}	2062	}
2297		2063
2298	/* new function to make monster searching more efficient, and effective!	2064	/* new function to make monster searching more efficient, and effective!
2299	* This basically returns a randomized array (in the passed pointer) of	2065	* This basically returns a randomized array (in the passed pointer) of
2300	* the spaces to find monsters. In this way, it won't always look for	2066	* the spaces to find monsters. In this way, it won't always look for
2301	* monsters to the north first. However, the size of the array passed	2067	* monsters to the north first. However, the size of the array passed
2302	* covers all the spaces, so within that size, all the spaces within	2068	* covers all the spaces, so within that size, all the spaces within
2303	* the 3x3 area will be searched, just not in a predictable order.	2069	* the 3x3 area will be searched, just not in a predictable order.
2304	*/	2070	*/
		2071	void
2305	void get_search_arr(int *search_arr)	2072	get_search_arr (int *search_arr)
2306	{	2073	{
2307	int i;	2074	int i;
2308		2075
2309	for(i = 0; i < SIZEOFFREE; i++)	2076	for (i = 0; i < SIZEOFFREE; i++)
2310	{
2311	search_arr[i] = i;	2077	search_arr[i] = i;
2312	}
2313		2078
2314	permute(search_arr, 1, SIZEOFFREE1+1);	2079	permute (search_arr, 1, SIZEOFFREE1 + 1);
2315	permute(search_arr, SIZEOFFREE1+1, SIZEOFFREE2+1);	2080	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);
2316	permute(search_arr, SIZEOFFREE2+1, SIZEOFFREE);	2081	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);
2317	}	2082	}
2318		2083
2319	/*	2084	/*
2320	* find_dir(map, x, y, exclude) will search some close squares in the	2085	* find_dir(map, x, y, exclude) will search some close squares in the
2321	* given map at the given coordinates for live objects.	2086	* given map at the given coordinates for live objects.
…		…
2326	* Perhaps incorrectly, but I'm making the assumption that exclude	2091	* Perhaps incorrectly, but I'm making the assumption that exclude
2327	* is actually want is going to try and move there. We need this info	2092	* is actually want is going to try and move there. We need this info
2328	* because we have to know what movement the thing looking to move	2093	* because we have to know what movement the thing looking to move
2329	* there is capable of.	2094	* there is capable of.
2330	*/	2095	*/
2331		2096	int
2332	int find_dir(mapstruct *m, int x, int y, object *exclude) {	2097	find_dir (maptile *m, int x, int y, object *exclude)
		2098	{
2333	int i,max=SIZEOFFREE, mflags;	2099	int i, max = SIZEOFFREE, mflags;
		2100
2334	sint16 nx, ny;	2101	sint16 nx, ny;
2335	object *tmp;	2102	object *tmp;
2336	mapstruct *mp;	2103	maptile *mp;
		2104
2337	MoveType blocked, move_type;	2105	MoveType blocked, move_type;
2338		2106
2339	if (exclude && exclude->head) {	2107	if (exclude && exclude->head)
		2108	{
2340	exclude = exclude->head;	2109	exclude = exclude->head;
2341	move_type = exclude->move_type;	2110	move_type = exclude->move_type;
2342	} else {	2111	}
		2112	else
		2113	{
2343	/* If we don't have anything, presume it can use all movement types. */	2114	/* If we don't have anything, presume it can use all movement types. */
2344	move_type=MOVE_ALL;	2115	move_type = MOVE_ALL;
		2116	}
		2117
		2118	for (i = 1; i < max; i++)
2345	}	2119	{
2346		2120	mp = m;
2347	for(i=1;i<max;i++) {
2348	mp = m;
2349	nx = x + freearr_x[i];	2121	nx = x + freearr_x[i];
2350	ny = y + freearr_y[i];	2122	ny = y + freearr_y[i];
2351		2123
2352	mflags = get_map_flags(m, &mp, nx, ny, &nx, &ny);	2124	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);
		2125
2353	if (mflags & P_OUT_OF_MAP) {	2126	if (mflags & P_OUT_OF_MAP)
2354	max = maxfree[i];	2127	max = maxfree[i];
2355	} else {	2128	else
2356	blocked = GET_MAP_MOVE_BLOCK(mp, nx, ny);	2129	{
		2130	mapspace &ms = mp->at (nx, ny);
2357		2131
		2132	blocked = ms.move_block;
		2133
2358	if ((move_type & blocked) == move_type) {	2134	if ((move_type & blocked) == move_type)
2359	max=maxfree[i];	2135	max = maxfree[i];
2360	} else if (mflags & P_IS_ALIVE) {	2136	else if (mflags & P_IS_ALIVE)
2361	for (tmp=GET_MAP_OB(mp,nx,ny); tmp!= NULL; tmp=tmp->above) {	2137	{
2362	if ((QUERY_FLAG(tmp,FLAG_MONSTER) || tmp->type==PLAYER) &&	2138	for (tmp = ms.bot; tmp; tmp = tmp->above)
		2139	if ((tmp->flag [FLAG_MONSTER] || tmp->type == PLAYER)
2363	(tmp != exclude ||(tmp->head && tmp->head != exclude))) {	2140	&& (tmp != exclude || (tmp->head && tmp->head != exclude)))
2364	break;	2141	break;
2365	}	2142
2366	}	2143	if (tmp)
2367	if(tmp) {
2368	return freedir[i];	2144	return freedir[i];
2369	}	2145	}
		2146	}
2370	}	2147	}
2371	}	2148
2372	}
2373	return 0;	2149	return 0;
2374	}	2150	}
2375		2151
2376	/*	2152	/*
2377	* distance(object 1, object 2) will return the square of the	2153	* distance(object 1, object 2) will return the square of the
2378	* distance between the two given objects.	2154	* distance between the two given objects.
2379	*/	2155	*/
2380		2156	int
2381	int distance(const object *ob1, const object *ob2) {	2157	distance (const object *ob1, const object *ob2)
2382	int i;	2158	{
2383	i= (ob1->x - ob2->x)*(ob1->x - ob2->x)+	2159	return (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);
2384	(ob1->y - ob2->y)*(ob1->y - ob2->y);
2385	return i;
2386	}	2160	}
2387		2161
2388	/*	2162	/*
2389	* find_dir_2(delta-x,delta-y) will return a direction in which	2163	* find_dir_2(delta-x,delta-y) will return a direction in which
2390	* an object which has subtracted the x and y coordinates of another	2164	* an object which has subtracted the x and y coordinates of another
2391	* object, needs to travel toward it.	2165	* object, needs to travel toward it.
2392	*/	2166	*/
2393		2167	int
2394	int find_dir_2(int x, int y) {	2168	find_dir_2 (int x, int y)
		2169	{
2395	int q;	2170	int q;
2396		2171
2397	if(y)	2172	if (y)
2398	q=x*100/y;	2173	q = x * 100 / y;
2399	else if (x)	2174	else if (x)
2400	q= -300*x;	2175	q = -300 * x;
2401	else	2176	else
2402	return 0;	2177	return 0;
2403		2178
2404	if(y>0) {	2179	if (y > 0)
		2180	{
2405	if(q < -242)	2181	if (q < -242)
2406	return 3 ;	2182	return 3;
2407	if (q < -41)	2183	if (q < -41)
2408	return 2 ;	2184	return 2;
2409	if (q < 41)	2185	if (q < 41)
2410	return 1 ;	2186	return 1;
2411	if (q < 242)	2187	if (q < 242)
2412	return 8 ;	2188	return 8;
2413	return 7 ;	2189	return 7;
2414	}	2190	}
2415		2191
2416	if (q < -242)	2192	if (q < -242)
2417	return 7 ;	2193	return 7;
2418	if (q < -41)	2194	if (q < -41)
2419	return 6 ;	2195	return 6;
2420	if (q < 41)	2196	if (q < 41)
2421	return 5 ;	2197	return 5;
2422	if (q < 242)	2198	if (q < 242)
2423	return 4 ;	2199	return 4;
2424		2200
2425	return 3 ;	2201	return 3;
2426	}	2202	}
2427		2203
2428	/*	2204	/*
2429	* absdir(int): Returns a number between 1 and 8, which represent	2205	* absdir(int): Returns a number between 1 and 8, which represent
2430	* the "absolute" direction of a number (it actually takes care of	2206	* the "absolute" direction of a number (it actually takes care of
2431	* "overflow" in previous calculations of a direction).	2207	* "overflow" in previous calculations of a direction).
2432	*/	2208	*/
2433		2209
		2210	int
2434	int absdir(int d) {	2211	absdir (int d)
2435	while(d<1) d+=8;	2212	{
2436	while(d>8) d-=8;	2213	while (d < 1)
		2214	d += 8;
		2215
		2216	while (d > 8)
		2217	d -= 8;
		2218
2437	return d;	2219	return d;
2438	}	2220	}
2439		2221
2440	/*	2222	/*
2441	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is	2223	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is
2442	* between two directions (which are expected to be absolute (see absdir())	2224	* between two directions (which are expected to be absolute (see absdir())
2443	*/	2225	*/
2444		2226
		2227	int
2445	int dirdiff(int dir1, int dir2) {	2228	dirdiff (int dir1, int dir2)
		2229	{
2446	int d;	2230	int d;
		2231
2447	d = abs(dir1 - dir2);	2232	d = abs (dir1 - dir2);
2448	if(d>4)	2233	if (d > 4)
2449	d = 8 - d;	2234	d = 8 - d;
		2235
2450	return d;	2236	return d;
2451	}	2237	}
2452		2238
2453	/* peterm:	2239	/* peterm:
2454	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.	2240	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.
…		…
2457	* This basically means that if direction is 15, then it could either go	2243	* This basically means that if direction is 15, then it could either go
2458	* direction 4, 14, or 16 to get back to where we are.	2244	* direction 4, 14, or 16 to get back to where we are.
2459	* Moved from spell_util.c to object.c with the other related direction	2245	* Moved from spell_util.c to object.c with the other related direction
2460	* functions.	2246	* functions.
2461	*/	2247	*/
2462
2463	int reduction_dir[SIZEOFFREE][3] = {	2248	int reduction_dir[SIZEOFFREE][3] = {
2464	{0,0,0}, /* 0 */	2249	{0, 0, 0}, /* 0 */
2465	{0,0,0}, /* 1 */	2250	{0, 0, 0}, /* 1 */
2466	{0,0,0}, /* 2 */	2251	{0, 0, 0}, /* 2 */
2467	{0,0,0}, /* 3 */	2252	{0, 0, 0}, /* 3 */
2468	{0,0,0}, /* 4 */	2253	{0, 0, 0}, /* 4 */
2469	{0,0,0}, /* 5 */	2254	{0, 0, 0}, /* 5 */
2470	{0,0,0}, /* 6 */	2255	{0, 0, 0}, /* 6 */
2471	{0,0,0}, /* 7 */	2256	{0, 0, 0}, /* 7 */
2472	{0,0,0}, /* 8 */	2257	{0, 0, 0}, /* 8 */
2473	{8,1,2}, /* 9 */	2258	{8, 1, 2}, /* 9 */
2474	{1,2,-1}, /* 10 */	2259	{1, 2, -1}, /* 10 */
2475	{2,10,12}, /* 11 */	2260	{2, 10, 12}, /* 11 */
2476	{2,3,-1}, /* 12 */	2261	{2, 3, -1}, /* 12 */
2477	{2,3,4}, /* 13 */	2262	{2, 3, 4}, /* 13 */
2478	{3,4,-1}, /* 14 */	2263	{3, 4, -1}, /* 14 */
2479	{4,14,16}, /* 15 */	2264	{4, 14, 16}, /* 15 */
2480	{5,4,-1}, /* 16 */	2265	{5, 4, -1}, /* 16 */
2481	{4,5,6}, /* 17 */	2266	{4, 5, 6}, /* 17 */
2482	{6,5,-1}, /* 18 */	2267	{6, 5, -1}, /* 18 */
2483	{6,20,18}, /* 19 */	2268	{6, 20, 18}, /* 19 */
2484	{7,6,-1}, /* 20 */	2269	{7, 6, -1}, /* 20 */
2485	{6,7,8}, /* 21 */	2270	{6, 7, 8}, /* 21 */
2486	{7,8,-1}, /* 22 */	2271	{7, 8, -1}, /* 22 */
2487	{8,22,24}, /* 23 */	2272	{8, 22, 24}, /* 23 */
2488	{8,1,-1}, /* 24 */	2273	{8, 1, -1}, /* 24 */
2489	{24,9,10}, /* 25 */	2274	{24, 9, 10}, /* 25 */
2490	{9,10,-1}, /* 26 */	2275	{9, 10, -1}, /* 26 */
2491	{10,11,-1}, /* 27 */	2276	{10, 11, -1}, /* 27 */
2492	{27,11,29}, /* 28 */	2277	{27, 11, 29}, /* 28 */
2493	{11,12,-1}, /* 29 */	2278	{11, 12, -1}, /* 29 */
2494	{12,13,-1}, /* 30 */	2279	{12, 13, -1}, /* 30 */
2495	{12,13,14}, /* 31 */	2280	{12, 13, 14}, /* 31 */
2496	{13,14,-1}, /* 32 */	2281	{13, 14, -1}, /* 32 */
2497	{14,15,-1}, /* 33 */	2282	{14, 15, -1}, /* 33 */
2498	{33,15,35}, /* 34 */	2283	{33, 15, 35}, /* 34 */
2499	{16,15,-1}, /* 35 */	2284	{16, 15, -1}, /* 35 */
2500	{17,16,-1}, /* 36 */	2285	{17, 16, -1}, /* 36 */
2501	{18,17,16}, /* 37 */	2286	{18, 17, 16}, /* 37 */
2502	{18,17,-1}, /* 38 */	2287	{18, 17, -1}, /* 38 */
2503	{18,19,-1}, /* 39 */	2288	{18, 19, -1}, /* 39 */
2504	{41,19,39}, /* 40 */	2289	{41, 19, 39}, /* 40 */
2505	{19,20,-1}, /* 41 */	2290	{19, 20, -1}, /* 41 */
2506	{20,21,-1}, /* 42 */	2291	{20, 21, -1}, /* 42 */
2507	{20,21,22}, /* 43 */	2292	{20, 21, 22}, /* 43 */
2508	{21,22,-1}, /* 44 */	2293	{21, 22, -1}, /* 44 */
2509	{23,22,-1}, /* 45 */	2294	{23, 22, -1}, /* 45 */
2510	{45,47,23}, /* 46 */	2295	{45, 47, 23}, /* 46 */
2511	{23,24,-1}, /* 47 */	2296	{23, 24, -1}, /* 47 */
2512	{24,9,-1}}; /* 48 */	2297	{24, 9, -1}
		2298	}; /* 48 */
2513		2299
2514	/* Recursive routine to step back and see if we can	2300	/* Recursive routine to step back and see if we can
2515	* find a path to that monster that we found. If not,	2301	* find a path to that monster that we found. If not,
2516	* we don't bother going toward it. Returns 1 if we	2302	* we don't bother going toward it. Returns 1 if we
2517	* can see a direct way to get it	2303	* can see a direct way to get it
2518	* Modified to be map tile aware -.MSW	2304	* Modified to be map tile aware -.MSW
2519	*/	2305	*/
2520		2306	int
2521
2522	int can_see_monsterP(mapstruct *m, int x, int y,int dir) {	2307	can_see_monsterP (maptile *m, int x, int y, int dir)
		2308	{
2523	sint16 dx, dy;	2309	sint16 dx, dy;
2524	int mflags;	2310	int mflags;
2525		2311
		2312	if (dir < 0)
2526	if(dir<0) return 0; /* exit condition: invalid direction */	2313	return 0; /* exit condition: invalid direction */
2527		2314
2528	dx = x + freearr_x[dir];	2315	dx = x + freearr_x[dir];
2529	dy = y + freearr_y[dir];	2316	dy = y + freearr_y[dir];
2530		2317
2531	mflags = get_map_flags(m, &m, dx, dy, &dx, &dy);	2318	mflags = get_map_flags (m, &m, dx, dy, &dx, &dy);
2532		2319
2533	/* This functional arguably was incorrect before - it was	2320	/* This functional arguably was incorrect before - it was
2534	* checking for P_WALL - that was basically seeing if	2321	* checking for P_WALL - that was basically seeing if
2535	* we could move to the monster - this is being more	2322	* we could move to the monster - this is being more
2536	* literal on if we can see it. To know if we can actually	2323	* literal on if we can see it. To know if we can actually
2537	* move to the monster, we'd need the monster passed in or	2324	* move to the monster, we'd need the monster passed in or
2538	* at least its move type.	2325	* at least its move type.
2539	*/	2326	*/
2540	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW)) return 0;	2327	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW))
		2328	return 0;
2541		2329
2542	/* yes, can see. */	2330	/* yes, can see. */
2543	if(dir < 9) return 1;	2331	if (dir < 9)
		2332	return 1;
		2333
2544	return can_see_monsterP(m, x, y, reduction_dir[dir][0]) |	2334	return can_see_monsterP (m, x, y, reduction_dir[dir][0])
2545	can_see_monsterP(m,x,y, reduction_dir[dir][1]) |	2335	| can_see_monsterP (m, x, y, reduction_dir[dir][1])
2546	can_see_monsterP(m,x,y, reduction_dir[dir][2]);	2336	| can_see_monsterP (m, x, y, reduction_dir[dir][2]);
2547	}	2337	}
2548		2338
2549
2550
2551	/*	2339	/*
2552	* can_pick(picker, item): finds out if an object is possible to be	2340	* can_pick(picker, item): finds out if an object is possible to be
2553	* picked up by the picker. Returnes 1 if it can be	2341	* picked up by the picker. Returnes 1 if it can be
2554	* picked up, otherwise 0.	2342	* picked up, otherwise 0.
2555	*	2343	*
…		…
2557	* core dumps if they do.	2345	* core dumps if they do.
2558	*	2346	*
2559	* Add a check so we can't pick up invisible objects (0.93.8)	2347	* Add a check so we can't pick up invisible objects (0.93.8)
2560	*/	2348	*/
2561		2349
		2350	int
2562	int can_pick(const object *who, const object *item) {	2351	can_pick (const object *who, const object *item)
		2352	{
2563	return /*QUERY_FLAG(who,FLAG_WIZ)||*/	2353	return /*QUERY_FLAG(who,FLAG_WIZ)|| */
2564	(item->weight>0&&!QUERY_FLAG(item,FLAG_NO_PICK)&&	2354	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&
2565	!QUERY_FLAG(item,FLAG_ALIVE)&&!item->invisible &&	2355	!QUERY_FLAG (item, FLAG_ALIVE) && !item->invisible && (who->type == PLAYER || item->weight < who->weight / 3));
2566	(who->type==PLAYER||item->weight<who->weight/3));
2567	}	2356	}
2568
2569		2357
2570	/*	2358	/*
2571	* create clone from object to another	2359	* create clone from object to another
2572	*/	2360	*/
		2361	object *
2573	object *object_create_clone (object *asrc) {	2362	object_create_clone (object *asrc)
		2363	{
2574	object *dst = NULL,*tmp,*src,*part,*prev, *item;	2364	object *dst = 0, *tmp, *src, *part, *prev, *item;
2575		2365
2576	if(!asrc) return NULL;	2366	if (!asrc)
		2367	return 0;
		2368
2577	src = asrc;	2369	src = asrc;
2578	if(src->head)	2370	if (src->head)
2579	src = src->head;	2371	src = src->head;
2580		2372
2581	prev = NULL;	2373	prev = 0;
2582	for(part = src; part; part = part->more) {	2374	for (part = src; part; part = part->more)
2583	tmp = get_object();	2375	{
2584	copy_object(part,tmp);	2376	tmp = part->clone ();
2585	tmp->x -= src->x;	2377	tmp->x -= src->x;
2586	tmp->y -= src->y;	2378	tmp->y -= src->y;
		2379
2587	if(!part->head) {	2380	if (!part->head)
		2381	{
2588	dst = tmp;	2382	dst = tmp;
2589	tmp->head = NULL;	2383	tmp->head = 0;
		2384	}
2590	} else {	2385	else
2591	tmp->head = dst;	2386	tmp->head = dst;
2592	}	2387
2593	tmp->more = NULL;	2388	tmp->more = 0;
		2389
2594	if(prev)	2390	if (prev)
2595	prev->more = tmp;	2391	prev->more = tmp;
		2392
2596	prev = tmp;	2393	prev = tmp;
2597	}	2394	}
2598	/*** copy inventory ***/	2395
2599	for(item = src->inv; item; item = item->below) {	2396	for (item = src->inv; item; item = item->below)
2600	(void) insert_ob_in_ob(object_create_clone(item),dst);	2397	insert_ob_in_ob (object_create_clone (item), dst);
2601	}
2602		2398
2603	return dst;	2399	return dst;
2604	}
2605
2606	/* return true if the object was destroyed, 0 otherwise */
2607	int was_destroyed (const object *op, tag_t old_tag)
2608	{
2609	/* checking for FLAG_FREED isn't necessary, but makes this function more
2610	* robust */
2611	return op->count != old_tag || QUERY_FLAG (op, FLAG_FREED);
2612	}	2400	}
2613		2401
2614	/* GROS - Creates an object using a string representing its content. */	2402	/* GROS - Creates an object using a string representing its content. */
2615	/* Basically, we save the content of the string to a temp file, then call */	2403	/* Basically, we save the content of the string to a temp file, then call */
2616	/* load_object on it. I admit it is a highly inefficient way to make things, */	2404	/* load_object on it. I admit it is a highly inefficient way to make things, */
2617	/* but it was simple to make and allows reusing the load_object function. */	2405	/* but it was simple to make and allows reusing the load_object function. */
2618	/* Remember not to use load_object_str in a time-critical situation. */	2406	/* Remember not to use load_object_str in a time-critical situation. */
2619	/* Also remember that multiparts objects are not supported for now. */	2407	/* Also remember that multiparts objects are not supported for now. */
2620		2408	object *
2621	object* load_object_str(const char *obstr)	2409	load_object_str (const char *obstr)
2622	{	2410	{
2623	object *op;	2411	object *op;
2624	FILE *tempfile;
2625	char filename[MAX_BUF];	2412	char filename[MAX_BUF];
		2413
2626	sprintf(filename,"%s/cfloadobstr2044",settings.tmpdir);	2414	sprintf (filename, "%s/cfloadobstr2044", settings.tmpdir);
		2415
2627	tempfile=fopen(filename,"w");	2416	FILE *tempfile = fopen (filename, "w");
		2417
2628	if (tempfile == NULL)	2418	if (tempfile == NULL)
2629	{	2419	{
2630	LOG(llevError,"Error - Unable to access load object temp file\n");	2420	LOG (llevError, "Error - Unable to access load object temp file\n");
2631	return NULL;	2421	return NULL;
2632	};	2422	}
		2423
2633	fprintf(tempfile,obstr);	2424	fprintf (tempfile, obstr);
2634	fclose(tempfile);	2425	fclose (tempfile);
2635		2426
2636	op=get_object();	2427	op = object::create ();
2637		2428
2638	tempfile=fopen(filename,"r");	2429	object_thawer thawer (filename);
2639	if (tempfile == NULL)	2430
2640	{	2431	if (thawer)
2641	LOG(llevError,"Error - Unable to read object temp file\n");	2432	load_object (thawer, op, 0);
2642	return NULL;	2433
2643	};
2644	load_object(tempfile,op,LO_NEWFILE,0);
2645	LOG(llevDebug," load str completed, object=%s\n",op->name);	2434	LOG (llevDebug, " load str completed, object=%s\n", &op->name);
2646	CLEAR_FLAG(op,FLAG_REMOVED);	2435	CLEAR_FLAG (op, FLAG_REMOVED);
2647	fclose(tempfile);	2436
2648	return op;	2437	return op;
2649	}	2438	}
2650		2439
2651	/* This returns the first object in who's inventory that	2440	/* This returns the first object in who's inventory that
2652	* has the same type and subtype match.	2441	* has the same type and subtype match.
2653	* returns NULL if no match.	2442	* returns NULL if no match.
2654	*/	2443	*/
		2444	object *
2655	object *find_obj_by_type_subtype(const object *who, int type, int subtype)	2445	find_obj_by_type_subtype (const object *who, int type, int subtype)
2656	{	2446	{
2657	object *tmp;
2658
2659	for (tmp=who->inv; tmp; tmp=tmp->below)	2447	for (object *tmp = who->inv; tmp; tmp = tmp->below)
2660	if (tmp->type == type && tmp->subtype == subtype) return tmp;	2448	if (tmp->type == type && tmp->subtype == subtype)
		2449	return tmp;
2661		2450
2662	return NULL;	2451	return 0;
2663	}	2452	}
2664		2453
2665	/* If ob has a field named key, return the link from the list,	2454	/* If ob has a field named key, return the link from the list,
2666	* otherwise return NULL.	2455	* otherwise return NULL.
2667	*	2456	*
2668	* key must be a passed in shared string - otherwise, this won't	2457	* key must be a passed in shared string - otherwise, this won't
2669	* do the desired thing.	2458	* do the desired thing.
2670	*/	2459	*/
		2460	key_value *
2671	key_value * get_ob_key_link(const object * ob, const char * key) {	2461	get_ob_key_link (const object *ob, const char *key)
2672	key_value * link;	2462	{
2673
2674	for (link = ob->key_values; link != NULL; link = link->next) {	2463	for (key_value *link = ob->key_values; link; link = link->next)
2675	if (link->key == key) {	2464	if (link->key == key)
2676	return link;	2465	return link;
2677	}	2466
2678	}	2467	return 0;
2679		2468	}
2680	return NULL;
2681	}
2682		2469
2683	/*	2470	/*
2684	* Returns the value of op has an extra_field for key, or NULL.	2471	* Returns the value of op has an extra_field for key, or NULL.
2685	*	2472	*
2686	* The argument doesn't need to be a shared string.	2473	* The argument doesn't need to be a shared string.
2687	*	2474	*
2688	* The returned string is shared.	2475	* The returned string is shared.
2689	*/	2476	*/
		2477	const char *
2690	const char * get_ob_key_value(const object * op, const char * const key) {	2478	get_ob_key_value (const object *op, const char *const key)
		2479	{
2691	key_value * link;	2480	key_value *link;
2692	const char * canonical_key;	2481	shstr_cmp canonical_key (key);
		2482
		2483	if (!canonical_key)
2693		2484	{
2694	canonical_key = find_string(key);
2695
2696	if (canonical_key == NULL) {
2697	/* 1. There being a field named key on any object	2485	/* 1. There being a field named key on any object
2698	* implies there'd be a shared string to find.	2486	* implies there'd be a shared string to find.
2699	* 2. Since there isn't, no object has this field.	2487	* 2. Since there isn't, no object has this field.
2700	* 3. Therefore, *this* object doesn't have this field.	2488	* 3. Therefore, *this* object doesn't have this field.
2701	*/	2489	*/
2702	return NULL;	2490	return 0;
2703	}	2491	}
2704		2492
2705	/* This is copied from get_ob_key_link() above -	2493	/* This is copied from get_ob_key_link() above -
2706	* only 4 lines, and saves the function call overhead.	2494	* only 4 lines, and saves the function call overhead.
2707	*/	2495	*/
2708	for (link = op->key_values; link != NULL; link = link->next) {	2496	for (link = op->key_values; link; link = link->next)
2709	if (link->key == canonical_key) {	2497	if (link->key == canonical_key)
2710	return link->value;	2498	return link->value;
2711	}	2499
2712	}	2500	return 0;
2713	return NULL;
2714	}	2501	}
2715		2502
2716		2503
2717	/*	2504	/*
2718	* Updates the canonical_key in op to value.	2505	* Updates the canonical_key in op to value.
…		…
2722	* Unless add_key is TRUE, it won't add fields, only change the value of existing	2509	* Unless add_key is TRUE, it won't add fields, only change the value of existing
2723	* keys.	2510	* keys.
2724	*	2511	*
2725	* Returns TRUE on success.	2512	* Returns TRUE on success.
2726	*/	2513	*/
		2514	int
2727	int set_ob_key_value_s(object * op, const char * canonical_key, const char * value, int add_key) {	2515	set_ob_key_value_s (object *op, const shstr & canonical_key, const char *value, int add_key)
		2516	{
2728	key_value * field = NULL, *last=NULL;	2517	key_value *field = NULL, *last = NULL;
2729		2518
2730	for (field=op->key_values; field != NULL; field=field->next) {	2519	for (field = op->key_values; field != NULL; field = field->next)
2731	if (field->key != canonical_key) {
2732	last = field;
2733	continue;
2734	}
2735		2520	{
2736	if (field->value) FREE_AND_CLEAR_STR(field->value);	2521	if (field->key != canonical_key)
2737	if (value)	2522	{
2738	field->value = add_string(value);	2523	last = field;
2739	else {	2524	continue;
		2525	}
		2526
		2527	if (value)
		2528	field->value = value;
		2529	else
		2530	{
2740	/* Basically, if the archetype has this key set,	2531	/* Basically, if the archetype has this key set,
2741	* we need to store the null value so when we save	2532	* we need to store the null value so when we save
2742	* it, we save the empty value so that when we load,	2533	* it, we save the empty value so that when we load,
2743	* we get this value back again.	2534	* we get this value back again.
2744	*/	2535	*/
2745	if (get_ob_key_link(&op->arch->clone, canonical_key))	2536	if (get_ob_key_link (&op->arch->clone, canonical_key))
2746	field->value = NULL;	2537	field->value = 0;
2747	else {	2538	else
2748	/* Delete this link */	2539	{
2749	if (field->key) FREE_AND_CLEAR_STR(field->key);	2540	if (last)
2750	if (field->value) FREE_AND_CLEAR_STR(field->value);	2541	last->next = field->next;
2751	if (last) last->next = field->next;	2542	else
2752	else op->key_values = field->next;	2543	op->key_values = field->next;
2753	free(field);	2544
2754	}	2545	delete field;
2755	}	2546	}
		2547	}
2756	return TRUE;	2548	return TRUE;
2757	}	2549	}
2758	/* IF we get here, key doesn't exist */	2550	/* IF we get here, key doesn't exist */
2759		2551
2760	/* No field, we'll have to add it. */	2552	/* No field, we'll have to add it. */
2761		2553
2762	if (!add_key) {	2554	if (!add_key)
2763	return FALSE;	2555	return FALSE;
2764	}	2556
2765	/* There isn't any good reason to store a null	2557	/* There isn't any good reason to store a null
2766	* value in the key/value list. If the archetype has	2558	* value in the key/value list. If the archetype has
2767	* this key, then we should also have it, so shouldn't	2559	* this key, then we should also have it, so shouldn't
2768	* be here. If user wants to store empty strings,	2560	* be here. If user wants to store empty strings,
2769	* should pass in ""	2561	* should pass in ""
2770	*/	2562	*/
2771	if (value == NULL) return TRUE;	2563	if (value == NULL)
2772
2773	field = (key_value *) malloc(sizeof(key_value));
2774
2775	field->key = add_refcount(canonical_key);
2776	field->value = add_string(value);
2777	/* Usual prepend-addition. */
2778	field->next = op->key_values;
2779	op->key_values = field;
2780
2781	return TRUE;	2564	return TRUE;
		2565
		2566	field = new key_value;
		2567
		2568	field->key = canonical_key;
		2569	field->value = value;
		2570	/* Usual prepend-addition. */
		2571	field->next = op->key_values;
		2572	op->key_values = field;
		2573
		2574	return TRUE;
2782	}	2575	}
2783		2576
2784	/*	2577	/*
2785	* Updates the key in op to value.	2578	* Updates the key in op to value.
2786	*	2579	*
…		…
2788	* and not add new ones.	2581	* and not add new ones.
2789	* In general, should be little reason FALSE is ever passed in for add_key	2582	* In general, should be little reason FALSE is ever passed in for add_key
2790	*	2583	*
2791	* Returns TRUE on success.	2584	* Returns TRUE on success.
2792	*/	2585	*/
		2586	int
2793	int set_ob_key_value(object * op, const char * key, const char * value, int add_key) {	2587	set_ob_key_value (object *op, const char *key, const char *value, int add_key)
2794	const char * canonical_key = NULL;	2588	{
2795	int floating_ref = FALSE;	2589	shstr key_ (key);
2796	int ret;	2590
		2591	return set_ob_key_value_s (op, key_, value, add_key);
		2592	}
		2593
		2594	object::depth_iterator::depth_iterator (object *container)
		2595	: iterator_base (container)
		2596	{
		2597	while (item->inv)
		2598	item = item->inv;
		2599	}
		2600
		2601	void
		2602	object::depth_iterator::next ()
		2603	{
		2604	if (item->below)
2797		2605	{
2798	/* HACK This mess is to make sure set_ob_value() passes a shared string	2606	item = item->below;
2799	* to get_ob_key_link(), without leaving a leaked refcount.	2607
2800	*/	2608	while (item->inv)
		2609	item = item->inv;
2801		2610	}
2802	canonical_key = find_string(key);	2611	else
2803	if (canonical_key == NULL) {	2612	item = item->env;
2804	canonical_key = add_string(key);
2805	floating_ref = TRUE;
2806	}
2807
2808	ret = set_ob_key_value_s(op, canonical_key, value, add_key);
2809
2810	if (floating_ref) {
2811	free_string(canonical_key);
2812	}
2813
2814	return ret;
2815	}	2613	}
		2614
		2615	// return a suitable string describing an objetc in enough detail to find it
		2616	const char *
		2617	object::debug_desc (char *info) const
		2618	{
		2619	char info2[256 * 3];
		2620	char *p = info;
		2621
		2622	p += snprintf (p, 256, "%d=\"%s%s%s\"",
		2623	count,
		2624	&name,
		2625	title ? " " : "",
		2626	title ? (const char *)title : "");
		2627
		2628	if (env)
		2629	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));
		2630
		2631	if (map)
		2632	p += snprintf (p, 256, "(on %s@%d+%d)", &map->path, x, y);
		2633
		2634	return info;
		2635	}
		2636
		2637	const char *
		2638	object::debug_desc () const
		2639	{
		2640	static char info[256 * 3];
		2641	return debug_desc (info);
		2642	}
		2643

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