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Comparing deliantra/server/common/object.C (file contents):
Revision 1.14 by root, Mon Sep 4 11:07:59 2006 UTC vs.
Revision 1.81 by root, Sat Dec 23 13:56:25 2006 UTC

1	/*
2	* static char *rcsid_object_c =
3	* "$Id: object.C,v 1.14 2006/09/04 11:07:59 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>
		34
		35	#include <bitset>
		36
42	int nrofallocobjects = 0;	37	int nrofallocobjects = 0;
		38	static UUID uuid;
		39	const uint64 UUID_SKIP = 1<<19;
43		40
44	object *objects; /* Pointer to the list of used objects */
45	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 */
46		42
47	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,
48	{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,
49	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
50	short freearr_y[SIZEOFFREE]=	45	};
51	{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,
52	-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
53	int maxfree[SIZEOFFREE]=	48	};
54	{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,
55	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	};
56	int freedir[SIZEOFFREE]= {	52	int freedir[SIZEOFFREE] = {
57	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,
58	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	};
59		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	}
60		133
61	/* 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
62	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	{
63	key_value * wants_field;	138	key_value *wants_field;
64		139
65	/* 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
66	* 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
67	* different structure or at least keep the lists sorted...	142	* different structure or at least keep the lists sorted...
68	*/	143	*/
69		144
70	/* For each field in wants, */	145	/* For each field in wants, */
71	for (wants_field = wants->key_values; wants_field != NULL; wants_field = wants_field->next) {	146	for (wants_field = wants->key_values; wants_field != NULL; wants_field = wants_field->next)
		147	{
72	key_value * has_field;	148	key_value *has_field;
73		149
74	/* Look for a field in has with the same key. */	150	/* Look for a field in has with the same key. */
75	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)
76		154	{
77	if (has_field == NULL) {
78	/* No field with that name. */	155	/* No field with that name. */
79	return FALSE;	156	return FALSE;
80	}	157	}
81		158
82	/* Found the matching field. */	159	/* Found the matching field. */
83	if (has_field->value != wants_field->value) {	160	if (has_field->value != wants_field->value)
		161	{
84	/* 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. */
85	return FALSE;	163	return FALSE;
86	}	164	}
87		165
88	/* 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. */
89	}
90		167	}
		168
91	/* 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. */
92	return TRUE;	170	return TRUE;
93	}	171	}
94		172
95	/* 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
96	static int compare_ob_value_lists(const object * ob1, const object * ob2) {	175	compare_ob_value_lists (const object *ob1, const object *ob2)
		176	{
97	/* 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,
98	* so we need to run the comparison *twice*. :(	178	* so we need to run the comparison *twice*. :(
99	*/	179	*/
100	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);
101	}	181	}
102		182
103	/* 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
104	* they can be merged together.	184	* they can be merged together.
105	*	185	*
106	* 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
107	* replaces - this is mostly for clarity - a decent compiler should hopefully	187	* replaces - this is mostly for clarity - a decent compiler should hopefully
108	* reduce this to the same efficiency.	188	* reduce this to the same efficiency.
109	*	189	*
110	* Check nrof variable *before* calling CAN_MERGE()	190	* Check nrof variable *before* calling can_merge()
111	*	191	*
112	* Improvements made with merge: Better checking on potion, and also	192	* Improvements made with merge: Better checking on potion, and also
113	* check weight	193	* check weight
114	*/	194	*/
115		195
116	int CAN_MERGE(object *ob1, object *ob2) {	196	bool object::can_merge_slow (object *ob1, object *ob2)
117		197	{
118	/* A couple quicksanity checks */	198	/* A couple quicksanity checks */
119	if ((ob1 == ob2) || (ob1->type != ob2->type)) return 0;	199	if (ob1 == ob2
		200	|| ob1->type != ob2->type
		201	|| ob1->speed != ob2->speed
		202	|| ob1->value != ob2->value
		203	|| ob1->name != ob2->name)
		204	return 0;
120		205
121	if (ob1->speed != ob2->speed) return 0;	206	//TODO: this ain't working well, use nicer and correct overflow check
122	/* Note sure why the following is the case - either the object has to	207	/* Do not merge objects if nrof would overflow. We use 1UL<<31 since that
123	* be animated or have a very low speed. Is this an attempted monster	208	* value could not be stored in a sint32 (which unfortunately sometimes is
124	* check?	209	* used to store nrof).
125	*/	210	*/
126	if (!QUERY_FLAG(ob1,FLAG_ANIMATE) && FABS((ob1)->speed) > MIN_ACTIVE_SPEED)	211	if (ob1->nrof + ob2->nrof >= 1UL << 31)
		212	return 0;
		213
		214	/* If the objects have been identified, set the BEEN_APPLIED flag.
		215	* This is to the comparison of the flags below will be OK. We
		216	* just can't ignore the been applied or identified flags, as they
		217	* are not equal - just if it has been identified, the been_applied
		218	* flags lose any meaning.
		219	*/
		220	if (QUERY_FLAG (ob1, FLAG_IDENTIFIED))
		221	SET_FLAG (ob1, FLAG_BEEN_APPLIED);
		222
		223	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))
		224	SET_FLAG (ob2, FLAG_BEEN_APPLIED);
		225
		226	if ((ob1->flag ^ ob2->flag).reset (FLAG_INV_LOCKED).reset (FLAG_CLIENT_SENT).any ()
		227	|| ob1->arch != ob2->arch
		228	|| ob1->name != ob2->name
		229	|| ob1->title != ob2->title
		230	|| ob1->msg != ob2->msg
		231	|| ob1->weight != ob2->weight
		232	|| memcmp (&ob1->resist, &ob2->resist, sizeof (ob1->resist))
		233	|| memcmp (&ob1->stats , &ob2->stats , sizeof (ob1->stats) )
		234	|| ob1->attacktype != ob2->attacktype
		235	|| ob1->magic != ob2->magic
		236	|| ob1->slaying != ob2->slaying
		237	|| ob1->skill != ob2->skill
		238	|| ob1->value != ob2->value
		239	|| ob1->animation_id != ob2->animation_id
		240	|| ob1->client_type != ob2->client_type
		241	|| ob1->materialname != ob2->materialname
		242	|| ob1->lore != ob2->lore
		243	|| ob1->subtype != ob2->subtype
		244	|| ob1->move_type != ob2->move_type
		245	|| ob1->move_block != ob2->move_block
		246	|| ob1->move_allow != ob2->move_allow
		247	|| ob1->move_on != ob2->move_on
		248	|| ob1->move_off != ob2->move_off
		249	|| ob1->move_slow != ob2->move_slow
		250	|| ob1->move_slow_penalty != ob2->move_slow_penalty)
		251	return 0;
		252
		253	/* This is really a spellbook check - really, we should
		254	* check all objects in the inventory.
		255	*/
		256	if (ob1->inv || ob2->inv)
		257	{
		258	/* if one object has inventory but the other doesn't, not equiv */
		259	if ((ob1->inv && !ob2->inv) || (ob2->inv && !ob1->inv))
127	return 0;	260	return 0;
128		261
129	/* Do not merge objects if nrof would overflow. We use 1UL<<31 since that	262	/* Now check to see if the two inventory objects could merge */
130	* value could not be stored in a sint32 (which unfortunately sometimes is	263	if (!object::can_merge (ob1->inv, ob2->inv))
131	* used to store nrof).
132	*/
133	if (ob1->nrof+ob2->nrof >= 1UL<<31)
134	return 0;	264	return 0;
135		265
136	/* This is really a spellbook check - really, we should
137	* check all objects in the inventory.
138	*/
139	if (ob1->inv || ob2->inv) {
140	/* if one object has inventory but the other doesn't, not equiv */
141	if ((ob1->inv && !ob2->inv) || (ob2->inv && !ob1->inv)) return 0;
142
143	/* Now check to see if the two inventory objects could merge */
144	if (!CAN_MERGE(ob1->inv, ob2->inv)) return 0;
145
146	/* inventory ok - still need to check rest of this object to see	266	/* inventory ok - still need to check rest of this object to see
147	* if it is valid.	267	* if it is valid.
148	*/	268	*/
149	}	269	}
150		270
151	/* If the objects have been identified, set the BEEN_APPLIED flag.
152	* This is to the comparison of the flags below will be OK. We
153	* just can't ignore the been applied or identified flags, as they
154	* are not equal - just if it has been identified, the been_applied
155	* flags lose any meaning.
156	*/
157	if (QUERY_FLAG(ob1, FLAG_IDENTIFIED))
158	SET_FLAG(ob1, FLAG_BEEN_APPLIED);
159
160	if (QUERY_FLAG(ob2, FLAG_IDENTIFIED))
161	SET_FLAG(ob2, FLAG_BEEN_APPLIED);
162
163
164	/* the 0x400000 on flags2 is FLAG_INV_LOCK. I don't think something
165	* being locked in inventory should prevent merging.
166	* 0x4 in flags3 is CLIENT_SENT
167	*/
168	if ((ob1->arch != ob2->arch) ||
169	(ob1->flags[0] != ob2->flags[0]) ||
170	(ob1->flags[1] != ob2->flags[1]) ||
171	((ob1->flags[2] & ~0x400000) != (ob2->flags[2] & ~ 0x400000)) ||
172	((ob1->flags[3] & ~0x4) != (ob2->flags[3] & ~0x4)) ||
173	(ob1->name != ob2->name) ||
174	(ob1->title != ob2->title) ||
175	(ob1->msg != ob2->msg) ||
176	(ob1->weight != ob2->weight) ||
177	(memcmp(&ob1->resist, &ob2->resist, sizeof(ob1->resist))!=0) ||
178	(memcmp(&ob1->stats, &ob2->stats, sizeof(ob1->stats))!=0) ||
179	(ob1->attacktype != ob2->attacktype) ||
180	(ob1->magic != ob2->magic) ||
181	(ob1->slaying != ob2->slaying) ||
182	(ob1->skill != ob2->skill) ||
183	(ob1->value != ob2->value) ||
184	(ob1->animation_id != ob2->animation_id) ||
185	(ob1->client_type != ob2->client_type) ||
186	(ob1->materialname != ob2->materialname) ||
187	(ob1->lore != ob2->lore) ||
188	(ob1->subtype != ob2->subtype) ||
189	(ob1->move_type != ob2->move_type) ||
190	(ob1->move_block != ob2->move_block) ||
191	(ob1->move_allow != ob2->move_allow) ||
192	(ob1->move_on != ob2->move_on) ||
193	(ob1->move_off != ob2->move_off) ||
194	(ob1->move_slow != ob2->move_slow) ||
195	(ob1->move_slow_penalty != ob2->move_slow_penalty)
196	)
197	return 0;
198
199	/* Don't merge objects that are applied. With the new 'body' code,	271	/* Don't merge objects that are applied. With the new 'body' code,
200	* it is possible for most any character to have more than one of	272	* it is possible for most any character to have more than one of
201	* some items equipped, and we don't want those to merge.	273	* some items equipped, and we don't want those to merge.
202	*/	274	*/
203	if (QUERY_FLAG(ob1, FLAG_APPLIED) || QUERY_FLAG(ob2, FLAG_APPLIED))	275	if (QUERY_FLAG (ob1, FLAG_APPLIED) || QUERY_FLAG (ob2, FLAG_APPLIED))
		276	return 0;
		277
		278	/* Note sure why the following is the case - either the object has to
		279	* be animated or have a very low speed. Is this an attempted monster
		280	* check?
		281	*/
		282	if (!QUERY_FLAG (ob1, FLAG_ANIMATE) && FABS ((ob1)->speed) > MIN_ACTIVE_SPEED)
		283	return 0;
		284
		285	switch (ob1->type)
		286	{
		287	case SCROLL:
		288	if (ob1->level != ob2->level)
		289	return 0;
		290	break;
		291	}
		292
		293	if (ob1->key_values != NULL || ob2->key_values != NULL)
		294	{
		295	/* At least one of these has key_values. */
		296	if ((ob1->key_values == NULL) != (ob2->key_values == NULL))
		297	/* One has fields, but the other one doesn't. */
204	return 0;	298	return 0;
205
206	switch (ob1->type) {
207	case SCROLL:
208	if (ob1->level != ob2->level) return 0;
209	break;
210
211	}
212	if (ob1->key_values != NULL || ob2->key_values != NULL) {
213	/* At least one of these has key_values. */
214	if ((ob1->key_values == NULL) != (ob2->key_values == NULL)) {
215	/* One has fields, but the other one doesn't. */
216	return 0;
217	} else if (!compare_ob_value_lists(ob1, ob2)) {	299	else if (!compare_ob_value_lists (ob1, ob2))
218	return 0;	300	return 0;
219	}	301	}
		302
		303	//TODO: generate an event or call into perl for additional checks
		304	if (ob1->self || ob2->self)
220	}	305	{
		306	ob1->optimise ();
		307	ob2->optimise ();
221		308
		309	if (ob1->self || ob2->self)
		310	return 0;
		311	}
		312
222	/* Everything passes, must be OK. */	313	/* Everything passes, must be OK. */
223	return 1;	314	return 1;
224	}	315	}
225		316
226	/*	317	/*
227	* sum_weight() is a recursive function which calculates the weight	318	* sum_weight() is a recursive function which calculates the weight
228	* an object is carrying. It goes through in figures out how much	319	* an object is carrying. It goes through in figures out how much
229	* containers are carrying, and sums it up.	320	* containers are carrying, and sums it up.
230	*/	321	*/
231	signed long sum_weight(object *op) {	322	long
		323	sum_weight (object *op)
		324	{
232	signed long sum;	325	long sum;
233	object *inv;	326	object *inv;
		327
234	for(sum = 0, inv = op->inv; inv != NULL; inv = inv->below) {	328	for (sum = 0, inv = op->inv; inv != NULL; inv = inv->below)
		329	{
235	if (inv->inv)	330	if (inv->inv)
236	sum_weight(inv);	331	sum_weight (inv);
237	sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1);	332	sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1);
238	}	333	}
		334
239	if (op->type == CONTAINER && op->stats.Str)	335	if (op->type == CONTAINER && op->stats.Str)
240	sum = (sum * (100 - op->stats.Str))/100;	336	sum = (sum * (100 - op->stats.Str)) / 100;
		337
241	if(op->carrying != sum)	338	if (op->carrying != sum)
242	op->carrying = sum;	339	op->carrying = sum;
		340
243	return sum;	341	return sum;
244	}	342	}
245		343
246	/**	344	/**
247	* Return the outermost environment object for a given object.	345	* Return the outermost environment object for a given object.
248	*/	346	*/
249		347
		348	object *
250	object *object_get_env_recursive (object *op) {	349	object_get_env_recursive (object *op)
		350	{
251	while (op->env != NULL)	351	while (op->env != NULL)
252	op = op->env;	352	op = op->env;
253	return op;	353	return op;
254	}
255
256	/*
257	* Eneq(@csd.uu.se): Since we can have items buried in a character we need
258	* a better check. We basically keeping traversing up until we can't
259	* or find a player.
260	*/
261
262	object *is_player_inv (object *op) {
263	for (;op!=NULL&&op->type!=PLAYER; op=op->env)
264	if (op->env==op)
265	op->env = NULL;
266	return op;
267	}	354	}
268		355
269	/*	356	/*
270	* Used by: Crossedit: dump. Server DM commands: dumpbelow, dump.	357	* Used by: Crossedit: dump. Server DM commands: dumpbelow, dump.
271	* Some error messages.	358	* Some error messages.
272	* The result of the dump is stored in the static global errmsg array.	359	* The result of the dump is stored in the static global errmsg array.
273	*/	360	*/
274		361
275	void dump_object2(object *op) {	362	char *
276	errmsg[0] = 0;
277	return;
278	//TODO//D#d#
279	#if 0
280	char *cp;
281	/* object *tmp;*/
282
283	if(op->arch!=NULL) {
284	strcat(errmsg,"arch ");
285	strcat(errmsg,op->arch->name?op->arch->name:"(null)");
286	strcat(errmsg,"\n");
287	if((cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)
288	strcat(errmsg,cp);
289	#if 0
290	/* Don't dump player diffs - they are too long, mostly meaningless, and
291	* will overflow the buffer.
292	* Changed so that we don't dump inventory either. This may
293	* also overflow the buffer.
294	*/
295	if(op->type!=PLAYER && (cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)
296	strcat(errmsg,cp);
297	for (tmp=op->inv; tmp; tmp=tmp->below)
298	dump_object2(tmp);
299	#endif
300	strcat(errmsg,"end\n");
301	} else {
302	strcat(errmsg,"Object ");
303	if (op->name==NULL) strcat(errmsg, "(null)");
304	else strcat(errmsg,op->name);
305	strcat(errmsg,"\n");
306	#if 0
307	if((cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)
308	strcat(errmsg,cp);
309	for (tmp=op->inv; tmp; tmp=tmp->below)
310	dump_object2(tmp);
311	#endif
312	strcat(errmsg,"end\n");
313	}
314	#endif
315	}
316
317	/*
318	* Dumps an object. Returns output in the static global errmsg array.
319	*/
320
321	void dump_object(object *op) {	363	dump_object (object *op)
322	if(op==NULL) {	364	{
323	strcpy(errmsg,"[NULL pointer]");	365	if (!op)
324	return;	366	return strdup ("[NULLOBJ]");
325	}
326	errmsg[0]='\0';
327	dump_object2(op);
328	}
329		367
330	void dump_all_objects(void) {	368	object_freezer freezer;
331	object *op;	369	save_object (freezer, op, 3);
332	for(op=objects;op!=NULL;op=op->next) {	370	return freezer.as_string ();
333	dump_object(op);
334	fprintf(logfile, "Object %d\n:%s\n", op->count, errmsg);
335	}
336	}	371	}
337		372
338	/*	373	/*
339	* get_nearest_part(multi-object, object 2) returns the part of the	374	* get_nearest_part(multi-object, object 2) returns the part of the
340	* multi-object 1 which is closest to the second object.	375	* multi-object 1 which is closest to the second object.
341	* If it's not a multi-object, it is returned.	376	* If it's not a multi-object, it is returned.
342	*/	377	*/
343		378
		379	object *
344	object *get_nearest_part(object *op, const object *pl) {	380	get_nearest_part (object *op, const object *pl)
		381	{
345	object *tmp,*closest;	382	object *tmp, *closest;
346	int last_dist,i;	383	int last_dist, i;
		384
347	if(op->more==NULL)	385	if (op->more == NULL)
348	return op;	386	return op;
349	for(last_dist=distance(op,pl),closest=op,tmp=op->more;tmp!=NULL;tmp=tmp->more)	387	for (last_dist = distance (op, pl), closest = op, tmp = op->more; tmp != NULL; tmp = tmp->more)
350	if((i=distance(tmp,pl))<last_dist)	388	if ((i = distance (tmp, pl)) < last_dist)
351	closest=tmp,last_dist=i;	389	closest = tmp, last_dist = i;
352	return closest;	390	return closest;
353	}	391	}
354		392
355	/*	393	/*
356	* Returns the object which has the count-variable equal to the argument.	394	* Returns the object which has the count-variable equal to the argument.
357	*/	395	*/
358		396
		397	object *
359	object *find_object(tag_t i) {	398	find_object (tag_t i)
360	object *op;	399	{
361	for(op=objects;op!=NULL;op=op->next)	400	for (object *op = object::first; op; op = op->next)
362	if(op->count==i)	401	if (op->count == i)
363	break;	402	return op;
		403
364	return op;	404	return 0;
365	}	405	}
366		406
367	/*	407	/*
368	* Returns the first object which has a name equal to the argument.	408	* Returns the first object which has a name equal to the argument.
369	* Used only by the patch command, but not all that useful.	409	* Used only by the patch command, but not all that useful.
370	* Enables features like "patch <name-of-other-player> food 999"	410	* Enables features like "patch <name-of-other-player> food 999"
371	*/	411	*/
372		412
		413	object *
373	object *find_object_name(const char *str) {	414	find_object_name (const char *str)
374	const char *name = shstr::find (str);	415	{
		416	shstr_cmp str_ (str);
375	object *op;	417	object *op;
		418
376	for(op=objects;op!=NULL;op=op->next)	419	for (op = object::first; op != NULL; op = op->next)
377	if(&op->name == name)	420	if (op->name == str_)
378	break;	421	break;
379		422
380	return op;	423	return op;
381	}	424	}
382		425
		426	void
383	void free_all_object_data ()	427	free_all_object_data ()
384	{	428	{
385	LOG (llevDebug, "%d allocated objects\n", nrofallocobjects);	429	LOG (llevDebug, "%d allocated objects\n", nrofallocobjects);
386	}
387
388	/*
389	* Returns the object which this object marks as being the owner.
390	* A id-scheme is used to avoid pointing to objects which have been
391	* freed and are now reused. If this is detected, the owner is
392	* set to NULL, and NULL is returned.
393	* Changed 2004-02-12 - if the player is setting at the play again
394	* prompt, he is removed, and we don't want to treat him as an owner of
395	* anything, so check removed flag. I don't expect that this should break
396	* anything - once an object is removed, it is basically dead anyways.
397	*/
398
399	object *get_owner(object *op) {
400	if(op->owner==NULL)
401	return NULL;
402
403	if (!QUERY_FLAG(op->owner,FLAG_FREED) && !QUERY_FLAG(op->owner, FLAG_REMOVED) &&
404	op->owner->count==op->ownercount)
405	return op->owner;
406
407	op->owner=NULL;
408	op->ownercount=0;
409	return NULL;
410	}
411
412	void clear_owner(object *op)
413	{
414	if (!op) return;
415
416	if (op->owner && op->ownercount == op->owner->count)
417	op->owner->refcount--;
418
419	op->owner = NULL;
420	op->ownercount = 0;
421	}	430	}
422		431
423	/*	432	/*
424	* Sets the owner and sets the skill and exp pointers to owner's current	433	* Sets the owner and sets the skill and exp pointers to owner's current
425	* skill and experience objects.	434	* skill and experience objects.
426	*/	435	*/
427	void set_owner (object *op, object *owner)	436	void
		437	object::set_owner (object *owner)
428	{	438	{
429	if(owner==NULL||op==NULL)	439	if (!owner)
430	return;	440	return;
431		441
432	/* next line added to allow objects which own objects */	442	/* next line added to allow objects which own objects */
433	/* Add a check for ownercounts in here, as I got into an endless loop	443	/* Add a check for ownercounts in here, as I got into an endless loop
434	* with the fireball owning a poison cloud which then owned the	444	* with the fireball owning a poison cloud which then owned the
435	* fireball. I believe that was caused by one of the objects getting	445	* fireball. I believe that was caused by one of the objects getting
436	* freed and then another object replacing it. Since the ownercounts	446	* freed and then another object replacing it. Since the ownercounts
437	* didn't match, this check is valid and I believe that cause is valid.	447	* didn't match, this check is valid and I believe that cause is valid.
438	*/	448	*/
439	while (owner->owner && owner!=owner->owner &&	449	while (owner->owner)
440	owner->ownercount==owner->owner->count) owner=owner->owner;	450	owner = owner->owner;
441		451
442	/* IF the owner still has an owner, we did not resolve to a final owner.
443	* so lets not add to that.
444	*/
445	if (owner->owner) return;
446
447	op->owner=owner;	452	this->owner = owner;
448
449	op->ownercount=owner->count;
450	owner->refcount++;
451
452	}
453
454	/* Set the owner to clone's current owner and set the skill and experience
455	* objects to clone's objects (typically those objects that where the owner's
456	* current skill and experience objects at the time when clone's owner was
457	* set - not the owner's current skill and experience objects).
458	*
459	* Use this function if player created an object (e.g. fire bullet, swarm
460	* spell), and this object creates further objects whose kills should be
461	* accounted for the player's original skill, even if player has changed
462	* skills meanwhile.
463	*/
464	void copy_owner (object *op, object *clone)
465	{
466	object *owner = get_owner (clone);
467	if (owner == NULL) {
468	/* players don't have owners - they own themselves. Update
469	* as appropriate.
470	*/
471	if (clone->type == PLAYER) owner=clone;
472	else return;
473	}
474	set_owner(op, owner);
475
476	}	453	}
477		454
478	/* Zero the key_values on op, decrementing the shared-string	455	/* Zero the key_values on op, decrementing the shared-string
479	* refcounts and freeing the links.	456	* refcounts and freeing the links.
480	*/	457	*/
		458	static void
481	static void free_key_values(object * op)	459	free_key_values (object *op)
482	{	460	{
483	for (key_value *i = op->key_values; i != 0; )	461	for (key_value *i = op->key_values; i != 0;)
484	{	462	{
485	key_value *next = i->next;	463	key_value *next = i->next;
486	delete i;	464	delete i;
		465
487	i = next;	466	i = next;
488	}	467	}
489		468
490	op->key_values = 0;	469	op->key_values = 0;
491	}	470	}
492		471
493	void object::clear ()
494	{
495	attachable_base::clear ();
496
497	free_key_values (this);
498
499	name = 0;
500	name_pl = 0;
501	title = 0;
502	race = 0;
503	slaying = 0;
504	skill = 0;
505	msg = 0;
506	lore = 0;
507	custom_name = 0;
508	materialname = 0;
509
510	memset (static_cast<object_pod *>(this), 0, sizeof (object_pod));
511
512	SET_FLAG (this, FLAG_REMOVED);
513	}
514
515	void object::clone (object *destination)
516	{
517	*(object_copy *)destination = *(object_copy *)this;
518	*(object_pod *)destination = *(object_pod *)this;
519
520	if (self || cb)
521	INVOKE_OBJECT (CLONE, this, ARG_OBJECT (destination));
522	}
523
524	/*	472	/*
525	* clear_object() frees everything allocated by an object, and also
526	* clears all variables and flags to default settings.
527	*/
528
529	void clear_object (object *op)
530	{
531	op->clear ();
532
533	op->contr = NULL;
534	op->below = NULL;
535	op->above = NULL;
536	op->inv = NULL;
537	op->container=NULL;
538	op->env=NULL;
539	op->more=NULL;
540	op->head=NULL;
541	op->map=NULL;
542	op->refcount=0;
543	op->active_next = NULL;
544	op->active_prev = NULL;
545	/* What is not cleared is next, prev, and count */
546
547	op->expmul = 1.0;
548	op->face = blank_face;
549	op->attacked_by_count = -1;
550
551	if (settings.casting_time)
552	op->casting_time = -1;
553	}
554
555	/*
556	* copy object first frees everything allocated by the second object,	473	* copy_to first frees everything allocated by the dst object,
557	* and then copies the contends of the first object into the second	474	* and then copies the contents of itself into the second
558	* object, allocating what needs to be allocated. Basically, any	475	* object, allocating what needs to be allocated. Basically, any
559	* data that is malloc'd needs to be re-malloc/copied. Otherwise,	476	* data that is malloc'd needs to be re-malloc/copied. Otherwise,
560	* if the first object is freed, the pointers in the new object	477	* if the first object is freed, the pointers in the new object
561	* will point at garbage.	478	* will point at garbage.
562	*/	479	*/
563		480	void
564	void copy_object (object *op2, object *op)	481	object::copy_to (object *dst)
565	{	482	{
566	bool is_freed = QUERY_FLAG (op, FLAG_FREED);	483	bool is_freed = QUERY_FLAG (dst, FLAG_FREED);
567	bool is_removed = QUERY_FLAG (op, FLAG_REMOVED);	484	bool is_removed = QUERY_FLAG (dst, FLAG_REMOVED);
568		485
569	op2->clone (op);	486	*(object_copy *)dst = *this;
570		487
571	if (is_freed) SET_FLAG (op, FLAG_FREED);	488	if (self || cb)
572	if (is_removed) SET_FLAG (op, FLAG_REMOVED);	489	INVOKE_OBJECT (CLONE, this, ARG_OBJECT (dst));
573		490
		491	if (is_freed)
		492	SET_FLAG (dst, FLAG_FREED);
		493
		494	if (is_removed)
		495	SET_FLAG (dst, FLAG_REMOVED);
		496
574	if (op2->speed < 0)	497	if (speed < 0)
575	op->speed_left = op2->speed_left - RANDOM() % 200 / 100.0;	498	dst->speed_left = speed_left - RANDOM () % 200 / 100.0;
576		499
577	/* Copy over key_values, if any. */	500	/* Copy over key_values, if any. */
578	if (op2->key_values != NULL)	501	if (key_values)
579	{	502	{
580	key_value *tail = NULL;	503	key_value *tail = 0;
581	key_value *i;	504	key_value *i;
582		505
583	op->key_values = NULL;	506	dst->key_values = 0;
584		507
585	for (i = op2->key_values; i != NULL; i = i->next)	508	for (i = key_values; i; i = i->next)
586	{	509	{
587	key_value *new_link = new key_value;	510	key_value *new_link = new key_value;
588		511
589	new_link->next = NULL;	512	new_link->next = 0;
590	new_link->key = i->key;	513	new_link->key = i->key;
591	new_link->value = i->value;	514	new_link->value = i->value;
592		515
593	/* Try and be clever here, too. */	516	/* Try and be clever here, too. */
594	if (op->key_values == NULL)	517	if (!dst->key_values)
595	{	518	{
596	op->key_values = new_link;	519	dst->key_values = new_link;
597	tail = new_link;	520	tail = new_link;
598	}	521	}
599	else	522	else
600	{	523	{
601	tail->next = new_link;	524	tail->next = new_link;
602	tail = new_link;	525	tail = new_link;
603	}	526	}
604	}	527	}
605	}	528	}
606		529
607	update_ob_speed (op);	530	update_ob_speed (dst);
608	}	531	}
609		532
610	/*	533	object *
611	* get_object() grabs an object from the list of unused objects, makes	534	object::clone ()
612	* sure it is initialised, and returns it.
613	* If there are no free objects, expand_objects() is called to get more.
614	*/
615
616	object *get_object ()
617	{	535	{
618	object *op = new object;	536	object *neu = create ();
619		537	copy_to (neu);
620	op->count = ++ob_count;
621
622	op->active_next = 0;
623	op->active_prev = 0;
624
625	op->next = objects;
626	op->prev = 0;
627
628	if (objects)
629	objects->prev = op;
630
631	objects = op;
632
633	SET_FLAG (op, FLAG_REMOVED);
634
635	return op;	538	return neu;
636	}	539	}
637		540
638	/*	541	/*
639	* If an object with the IS_TURNABLE() flag needs to be turned due	542	* If an object with the IS_TURNABLE() flag needs to be turned due
640	* to the closest player being on the other side, this function can	543	* to the closest player being on the other side, this function can
641	* be called to update the face variable, _and_ how it looks on the map.	544	* be called to update the face variable, _and_ how it looks on the map.
642	*/	545	*/
643		546
		547	void
644	void update_turn_face(object *op) {	548	update_turn_face (object *op)
		549	{
645	if(!QUERY_FLAG(op,FLAG_IS_TURNABLE)||op->arch==NULL)	550	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || op->arch == NULL)
646	return;	551	return;
647	SET_ANIMATION(op, op->direction);	552	SET_ANIMATION (op, op->direction);
648	update_object(op,UP_OBJ_FACE);	553	update_object (op, UP_OBJ_FACE);
649	}	554	}
650		555
651	/*	556	/*
652	* Updates the speed of an object. If the speed changes from 0 to another	557	* Updates the speed of an object. If the speed changes from 0 to another
653	* value, or vice versa, then add/remove the object from the active list.	558	* value, or vice versa, then add/remove the object from the active list.
654	* This function needs to be called whenever the speed of an object changes.	559	* This function needs to be called whenever the speed of an object changes.
655	*/	560	*/
656		561	void
657	void update_ob_speed(object *op) {	562	update_ob_speed (object *op)
		563	{
658	extern int arch_init;	564	extern int arch_init;
659		565
660	/* No reason putting the archetypes objects on the speed list,	566	/* No reason putting the archetypes objects on the speed list,
661	* since they never really need to be updated.	567	* since they never really need to be updated.
662	*/	568	*/
663		569
664	if (QUERY_FLAG(op, FLAG_FREED) && op->speed) {	570	if (QUERY_FLAG (op, FLAG_FREED) && op->speed)
		571	{
665	LOG(llevError,"Object %s is freed but has speed.\n", &op->name);	572	LOG (llevError, "Object %s is freed but has speed.\n", &op->name);
666	#ifdef MANY_CORES	573	#ifdef MANY_CORES
667	abort();	574	abort ();
668	#else	575	#else
669	op->speed = 0;	576	op->speed = 0;
670	#endif	577	#endif
671	}	578	}
		579
672	if (arch_init) {	580	if (arch_init)
		581	return;
		582
		583	if (FABS (op->speed) > MIN_ACTIVE_SPEED)
		584	{
		585	/* If already on active list, don't do anything */
		586	if (op->active_next || op->active_prev || op == active_objects)
673	return;	587	return;
674	}
675	if (FABS(op->speed)>MIN_ACTIVE_SPEED) {
676	/* If already on active list, don't do anything */
677	if (op->active_next || op->active_prev || op==active_objects)
678	return;
679		588
680	/* process_events() expects us to insert the object at the beginning	589	/* process_events() expects us to insert the object at the beginning
681	* of the list. */	590	* of the list. */
682	op->active_next = active_objects;	591	op->active_next = active_objects;
		592
683	if (op->active_next!=NULL)	593	if (op->active_next != NULL)
684	op->active_next->active_prev = op;	594	op->active_next->active_prev = op;
		595
685	active_objects = op;	596	active_objects = op;
		597	}
		598	else
686	}	599	{
687	else {
688	/* If not on the active list, nothing needs to be done */	600	/* If not on the active list, nothing needs to be done */
689	if (!op->active_next && !op->active_prev && op!=active_objects)	601	if (!op->active_next && !op->active_prev && op != active_objects)
690	return;	602	return;
691		603
692	if (op->active_prev==NULL) {	604	if (op->active_prev == NULL)
		605	{
693	active_objects = op->active_next;	606	active_objects = op->active_next;
		607
694	if (op->active_next!=NULL)	608	if (op->active_next != NULL)
695	op->active_next->active_prev = NULL;	609	op->active_next->active_prev = NULL;
696	}	610	}
697	else {	611	else
		612	{
698	op->active_prev->active_next = op->active_next;	613	op->active_prev->active_next = op->active_next;
		614
699	if (op->active_next)	615	if (op->active_next)
700	op->active_next->active_prev = op->active_prev;	616	op->active_next->active_prev = op->active_prev;
701	}	617	}
		618
702	op->active_next = NULL;	619	op->active_next = NULL;
703	op->active_prev = NULL;	620	op->active_prev = NULL;
704	}	621	}
705	}	622	}
706		623
707	/* This function removes object 'op' from the list of active	624	/* This function removes object 'op' from the list of active
708	* objects.	625	* objects.
…		…
710	* reference maps where you don't want an object that isn't	627	* reference maps where you don't want an object that isn't
711	* in play chewing up cpu time getting processed.	628	* in play chewing up cpu time getting processed.
712	* The reverse of this is to call update_ob_speed, which	629	* The reverse of this is to call update_ob_speed, which
713	* will do the right thing based on the speed of the object.	630	* will do the right thing based on the speed of the object.
714	*/	631	*/
		632	void
715	void remove_from_active_list(object *op)	633	remove_from_active_list (object *op)
716	{	634	{
717	/* If not on the active list, nothing needs to be done */	635	/* If not on the active list, nothing needs to be done */
718	if (!op->active_next && !op->active_prev && op!=active_objects)	636	if (!op->active_next && !op->active_prev && op != active_objects)
719	return;	637	return;
720		638
721	if (op->active_prev==NULL) {	639	if (op->active_prev == NULL)
		640	{
722	active_objects = op->active_next;	641	active_objects = op->active_next;
723	if (op->active_next!=NULL)	642	if (op->active_next != NULL)
724	op->active_next->active_prev = NULL;	643	op->active_next->active_prev = NULL;
		644	}
		645	else
725	}	646	{
726	else {
727	op->active_prev->active_next = op->active_next;	647	op->active_prev->active_next = op->active_next;
728	if (op->active_next)	648	if (op->active_next)
729	op->active_next->active_prev = op->active_prev;	649	op->active_next->active_prev = op->active_prev;
730	}	650	}
731	op->active_next = NULL;	651	op->active_next = NULL;
732	op->active_prev = NULL;	652	op->active_prev = NULL;
733	}	653	}
734		654
735	/*	655	/*
736	* update_object() updates the array which represents the map.	656	* update_object() updates the the map.
737	* It takes into account invisible objects (and represent squares covered	657	* It takes into account invisible objects (and represent squares covered
738	* by invisible objects by whatever is below them (unless it's another	658	* by invisible objects by whatever is below them (unless it's another
739	* invisible object, etc...)	659	* invisible object, etc...)
740	* If the object being updated is beneath a player, the look-window	660	* If the object being updated is beneath a player, the look-window
741	* of that player is updated (this might be a suboptimal way of	661	* of that player is updated (this might be a suboptimal way of
742	* updating that window, though, since update_object() is called _often_)	662	* updating that window, though, since update_object() is called _often_)
743	*	663	*
744	* action is a hint of what the caller believes need to be done.	664	* action is a hint of what the caller believes need to be done.
745	* For example, if the only thing that has changed is the face (due to
746	* an animation), we don't need to call update_position until that actually
747	* comes into view of a player. OTOH, many other things, like addition/removal
748	* of walls or living creatures may need us to update the flags now.
749	* current action are:	665	* current action are:
750	* UP_OBJ_INSERT: op was inserted	666	* UP_OBJ_INSERT: op was inserted
751	* UP_OBJ_REMOVE: op was removed	667	* UP_OBJ_REMOVE: op was removed
752	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update	668	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update
753	* as that is easier than trying to look at what may have changed.	669	* as that is easier than trying to look at what may have changed.
754	* UP_OBJ_FACE: only the objects face has changed.	670	* UP_OBJ_FACE: only the objects face has changed.
755	*/	671	*/
756		672	void
757	void update_object(object *op, int action) {	673	update_object (object *op, int action)
758	int update_now=0, flags;	674	{
759	MoveType move_on, move_off, move_block, move_slow;	675	MoveType move_on, move_off, move_block, move_slow;
760		676
761	if (op == NULL) {	677	if (op == NULL)
		678	{
762	/* this should never happen */	679	/* this should never happen */
763	LOG(llevDebug,"update_object() called for NULL object.\n");	680	LOG (llevDebug, "update_object() called for NULL object.\n");
764	return;	681	return;
765	}
766		682	}
767	if(op->env!=NULL) {	683
		684	if (op->env)
		685	{
768	/* Animation is currently handled by client, so nothing	686	/* Animation is currently handled by client, so nothing
769	* to do in this case.	687	* to do in this case.
770	*/	688	*/
771	return;	689	return;
772	}	690	}
773		691
774	/* If the map is saving, don't do anything as everything is	692	/* If the map is saving, don't do anything as everything is
775	* going to get freed anyways.	693	* going to get freed anyways.
776	*/	694	*/
777	if (!op->map || op->map->in_memory == MAP_SAVING) return;	695	if (!op->map || op->map->in_memory == MAP_SAVING)
778		696	return;
		697
779	/* make sure the object is within map boundaries */	698	/* make sure the object is within map boundaries */
780	if (op->x < 0 || op->x >= MAP_WIDTH(op->map) ||	699	if (op->x < 0 || op->x >= MAP_WIDTH (op->map) || op->y < 0 || op->y >= MAP_HEIGHT (op->map))
781	op->y < 0 || op->y >= MAP_HEIGHT(op->map)) {	700	{
782	LOG(llevError,"update_object() called for object out of map!\n");	701	LOG (llevError, "update_object() called for object out of map!\n");
783	#ifdef MANY_CORES	702	#ifdef MANY_CORES
784	abort();	703	abort ();
785	#endif	704	#endif
786	return;	705	return;
787	}
788		706	}
789	flags = GET_MAP_FLAGS(op->map, op->x, op->y);
790	SET_MAP_FLAGS(op->map, op->x, op->y, flags | P_NEED_UPDATE);
791	move_slow = GET_MAP_MOVE_SLOW(op->map, op->x, op->y);
792	move_on = GET_MAP_MOVE_ON(op->map, op->x, op->y);
793	move_block = GET_MAP_MOVE_BLOCK(op->map, op->x, op->y);
794	move_off = GET_MAP_MOVE_OFF(op->map, op->x, op->y);
795		707
		708	mapspace &m = op->ms ();
		709
		710	if (m.flags_ & P_NEED_UPDATE)
		711	/* nop */;
796	if (action == UP_OBJ_INSERT) {	712	else if (action == UP_OBJ_INSERT)
		713	{
		714	// this is likely overkill, TODO: revisit (schmorp)
797	if (QUERY_FLAG(op, FLAG_BLOCKSVIEW) && !(flags & P_BLOCKSVIEW))	715	if ((QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(m.flags_ & P_BLOCKSVIEW))
798	update_now=1;
799
800	if (QUERY_FLAG(op, FLAG_NO_MAGIC) && !(flags & P_NO_MAGIC))	716	|| (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(m.flags_ & P_NO_MAGIC))
801	update_now=1;	717	|| (op->type == PLAYER && !(m.flags_ & P_PLAYER))
802		718	|| (op->type == SAFE_GROUND && !(m.flags_ & P_SAFE))
		719	|| (QUERY_FLAG (op, FLAG_ALIVE) && !(m.flags_ & P_IS_ALIVE))
803	if (QUERY_FLAG(op, FLAG_DAMNED) && !(flags & P_NO_CLERIC))	720	|| (QUERY_FLAG (op, FLAG_DAMNED) && !(m.flags_ & P_NO_CLERIC))
804	update_now=1;	721	|| (m.move_on | op->move_on ) != m.move_on
805
806	if (QUERY_FLAG(op, FLAG_ALIVE) && !(flags & P_IS_ALIVE))
807	update_now=1;
808
809	if ((move_on | op->move_on) != move_on) update_now=1;
810	if ((move_off | op->move_off) != move_off) update_now=1;	722	|| (m.move_off | op->move_off ) != m.move_off
		723	|| (m.move_slow | op->move_slow) != m.move_slow
811	/* This isn't perfect, but I don't expect a lot of objects to	724	/* This isn't perfect, but I don't expect a lot of objects to
812	* to have move_allow right now.	725	* to have move_allow right now.
813	*/	726	*/
814	if (((move_block | op->move_block) & ~op->move_allow) != move_block)	727	|| ((m.move_block | op->move_block) & ~op->move_allow) != m.move_block
815	update_now=1;	728	|| 1) // the above is not strong enough a test to skip updating. los maybe? TODO (Schmorp)
816	if ((move_slow | op->move_slow) != move_slow) update_now=1;	729	m.flags_ = P_NEED_UPDATE;
817	}	730	}
818	/* if the object is being removed, we can't make intelligent	731	/* if the object is being removed, we can't make intelligent
819	* decisions, because remove_ob can't really pass the object	732	* decisions, because remove_ob can't really pass the object
820	* that is being removed.	733	* that is being removed.
821	*/	734	*/
822	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE) {	735	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)
823	update_now=1;	736	m.flags_ = P_NEED_UPDATE;
824	} else if (action == UP_OBJ_FACE) {	737	else if (action == UP_OBJ_FACE)
825	/* Nothing to do for that case */	738	/* Nothing to do for that case */ ;
826	}
827	else {	739	else
828	LOG(llevError,"update_object called with invalid action: %d\n", action);	740	LOG (llevError, "update_object called with invalid action: %d\n", action);
829	}
830		741
831	if (update_now) {
832	SET_MAP_FLAGS(op->map, op->x, op->y, flags | P_NO_ERROR | P_NEED_UPDATE);
833	update_position(op->map, op->x, op->y);
834	}
835
836	if(op->more!=NULL)	742	if (op->more)
837	update_object(op->more, action);	743	update_object (op->more, action);
838	}	744	}
839		745
		746	object::vector object::mortals;
		747	object::vector object::objects; // not yet used
		748	object *object::first;
		749
		750	void object::free_mortals ()
		751	{
		752	for (AUTODECL (i, mortals.begin ()); i != mortals.end ();)
		753	if ((*i)->refcnt)
		754	++i; // further delay freeing
		755	else
		756	{
		757	delete *i;
		758	mortals.erase (i);
		759	}
		760	}
		761
		762	object::object ()
		763	{
		764	SET_FLAG (this, FLAG_REMOVED);
		765
		766	expmul = 1.0;
		767	face = blank_face;
		768	}
		769
		770	object::~object ()
		771	{
		772	free_key_values (this);
		773	}
		774
		775	void object::link ()
		776	{
		777	count = ++ob_count;
		778	uuid = gen_uuid ();
		779
		780	prev = 0;
		781	next = object::first;
		782
		783	if (object::first)
		784	object::first->prev = this;
		785
		786	object::first = this;
		787	}
		788
		789	void object::unlink ()
		790	{
		791	if (this == object::first)
		792	object::first = next;
		793
		794	/* Remove this object from the list of used objects */
		795	if (prev) prev->next = next;
		796	if (next) next->prev = prev;
		797
		798	prev = 0;
		799	next = 0;
		800	}
		801
		802	object *object::create ()
		803	{
		804	object *op = new object;
		805	op->link ();
		806	return op;
		807	}
840		808
841	/*	809	/*
842	* free_object() frees everything allocated by an object, removes	810	* free_object() frees everything allocated by an object, removes
843	* it from the list of used objects, and puts it on the list of	811	* it from the list of used objects, and puts it on the list of
844	* free objects. The IS_FREED() flag is set in the object.	812	* free objects. The IS_FREED() flag is set in the object.
845	* The object must have been removed by remove_ob() first for	813	* The object must have been removed by remove_ob() first for
846	* this function to succeed.	814	* this function to succeed.
847	*	815	*
848	* If free_inventory is set, free inventory as well. Else drop items in	816	* If destroy_inventory is set, free inventory as well. Else drop items in
849	* inventory to the ground.	817	* inventory to the ground.
850	*/	818	*/
851		819	void object::destroy (bool destroy_inventory)
852	void
853	free_object (object * ob)
854	{	820	{
855	free_object2 (ob, 0);
856	}
857
858	void
859	free_object2 (object * ob, int free_inventory)
860	{
861	object *tmp, *op;
862
863	if (!QUERY_FLAG (ob, FLAG_REMOVED))	821	if (QUERY_FLAG (this, FLAG_FREED))
864	{	822	return;
865	LOG (llevDebug, "Free object called with non removed object\n");
866	dump_object (ob);
867	#ifdef MANY_CORES
868	abort ();
869	#endif
870	}
871		823
872	if (QUERY_FLAG (ob, FLAG_FRIENDLY))	824	if (QUERY_FLAG (this, FLAG_FRIENDLY))
873	{
874	LOG (llevMonster, "Warning: tried to free friendly object.\n");
875	remove_friendly_object (ob);	825	remove_friendly_object (this);
876	}
877		826
878	if (QUERY_FLAG (ob, FLAG_FREED))	827	if (!QUERY_FLAG (this, FLAG_REMOVED))
879	{	828	remove ();
880	dump_object (ob);	829
881	LOG (llevError, "Trying to free freed object.\n%s\n", errmsg);	830	SET_FLAG (this, FLAG_FREED);
882	return;	831
		832	if (more)
883	}	833	{
884		834	more->destroy (destroy_inventory);
885	if (ob->more != NULL)	835	more = 0;
886	{	836	}
887	free_object2 (ob->more, free_inventory);
888	ob->more = NULL;
889	}
890		837
891	if (ob->inv)	838	if (inv)
892	{	839	{
893	/* Only if the space blocks everything do we not process -	840	/* Only if the space blocks everything do we not process -
894	* if some form of movemnt is allowed, let objects	841	* if some form of movement is allowed, let objects
895	* drop on that space.	842	* drop on that space.
896	*/	843	*/
897	if (free_inventory || ob->map == NULL	844	if (destroy_inventory || !map || map->in_memory != MAP_IN_MEMORY || GET_MAP_MOVE_BLOCK (map, x, y) == MOVE_ALL)
898	|| ob->map->in_memory != MAP_IN_MEMORY	845	{
899	|| (GET_MAP_MOVE_BLOCK (ob->map, ob->x, ob->y) == MOVE_ALL))	846	object *op = inv;
900	{
901	op = ob->inv;
902		847
903	while (op != NULL)	848	while (op)
904	{	849	{
905	tmp = op->below;	850	object *tmp = op->below;
906	remove_ob (op);	851	op->destroy (destroy_inventory);
907	free_object2 (op, free_inventory);
908	op = tmp;	852	op = tmp;
909	}	853	}
910	}	854	}
911	else	855	else
912	{ /* Put objects in inventory onto this space */	856	{ /* Put objects in inventory onto this space */
913	op = ob->inv;	857	object *op = inv;
914		858
915	while (op != NULL)	859	while (op)
916	{	860	{
917	tmp = op->below;	861	object *tmp = op->below;
918	remove_ob (op);
919		862
		863	op->remove ();
		864
920	if (QUERY_FLAG (op, FLAG_STARTEQUIP)	865	if (QUERY_FLAG (op, FLAG_STARTEQUIP)
921	|| QUERY_FLAG (op, FLAG_NO_DROP) || op->type == RUNE	866	|| QUERY_FLAG (op, FLAG_NO_DROP) || op->type == RUNE || op->type == TRAP || QUERY_FLAG (op, FLAG_IS_A_TEMPLATE))
922	|| op->type == TRAP || QUERY_FLAG (op, FLAG_IS_A_TEMPLATE))	867	op->destroy ();
923	free_object (op);	868	else
924	else	869	{
925	{	870	op->x = x;
926	op->x = ob->x;	871	op->y = y;
927	op->y = ob->y;
928	insert_ob_in_map (op, ob->map, NULL, 0); /* Insert in same map as the envir */	872	insert_ob_in_map (op, map, 0, 0); /* Insert in same map as the envir */
929	}	873	}
930		874
931	op = tmp;	875	op = tmp;
		876	}
		877	}
932	}	878	}
933	}	879
		880	// hack to ensure that freed objects still have a valid map
		881	{
		882	static maptile *freed_map; // freed objects are moved here to avoid crashes
		883
		884	if (!freed_map)
		885	{
		886	freed_map = new maptile;
		887
		888	freed_map->name = "/internal/freed_objects_map";
		889	freed_map->width = 3;
		890	freed_map->height = 3;
		891
		892	freed_map->allocate ();
934	}	893	}
		894
		895	map = freed_map;
		896	x = 1;
		897	y = 1;
		898	}
		899
		900	// clear those pointers that likely might have circular references to us
		901	owner = 0;
		902	enemy = 0;
		903	attacked_by = 0;
		904
		905	// only relevant for players(?), but make sure of it anyways
		906	contr = 0;
935		907
936	/* Remove object from the active list */	908	/* Remove object from the active list */
937	ob->speed = 0;	909	speed = 0;
938	update_ob_speed (ob);	910	update_ob_speed (this);
939		911
940	SET_FLAG (ob, FLAG_FREED);	912	unlink ();
941	ob->count = 0;
942		913
943	/* Remove this object from the list of used objects */	914	mortals.push_back (this);
944	if (ob->prev == NULL)
945	{
946	objects = ob->next;
947
948	if (objects != NULL)
949	objects->prev = NULL;
950	}
951	else
952	{
953	ob->prev->next = ob->next;
954
955	if (ob->next != NULL)
956	ob->next->prev = ob->prev;
957	}
958
959	free_key_values (ob);
960
961	/* Now link it with the free_objects list: */
962	ob->prev = 0;
963	ob->next = 0;
964
965	delete ob;
966	}	915	}
967		916
968	/*	917	/*
969	* sub_weight() recursively (outwards) subtracts a number from the	918	* sub_weight() recursively (outwards) subtracts a number from the
970	* weight of an object (and what is carried by it's environment(s)).	919	* weight of an object (and what is carried by it's environment(s)).
971	*/	920	*/
972		921	void
973	void sub_weight (object *op, signed long weight) {	922	sub_weight (object *op, signed long weight)
		923	{
974	while (op != NULL) {	924	while (op != NULL)
		925	{
975	if (op->type == CONTAINER) {	926	if (op->type == CONTAINER)
976	weight=(signed long)(weight*(100-op->stats.Str)/100);	927	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
977	}	928
978	op->carrying-=weight;	929	op->carrying -= weight;
979	op = op->env;	930	op = op->env;
980	}	931	}
981	}	932	}
982		933
983	/* remove_ob(op):	934	/* op->remove ():
984	* This function removes the object op from the linked list of objects	935	* This function removes the object op from the linked list of objects
985	* which it is currently tied to. When this function is done, the	936	* which it is currently tied to. When this function is done, the
986	* object will have no environment. If the object previously had an	937	* object will have no environment. If the object previously had an
987	* environment, the x and y coordinates will be updated to	938	* environment, the x and y coordinates will be updated to
988	* the previous environment.	939	* the previous environment.
989	* Beware: This function is called from the editor as well!	940	* Beware: This function is called from the editor as well!
990	*/	941	*/
991		942	void
992	void remove_ob(object *op) {	943	object::remove ()
		944	{
993	object *tmp,*last=NULL;	945	object *tmp, *last = 0;
994	object *otmp;	946	object *otmp;
995	tag_t tag;	947
996	int check_walk_off;	948	int check_walk_off;
997	mapstruct *m;
998	sint16 x,y;
999
1000		949
1001	if(QUERY_FLAG(op,FLAG_REMOVED)) {	950	if (QUERY_FLAG (this, FLAG_REMOVED))
1002	dump_object(op);	951	return;
1003	LOG(llevError,"Trying to remove removed object.\n%s\n",errmsg);
1004		952
1005	/* Changed it to always dump core in this case. As has been learned
1006	* in the past, trying to recover from errors almost always
1007	* make things worse, and this is a real error here - something
1008	* that should not happen.
1009	* Yes, if this was a mission critical app, trying to do something
1010	* to recover may make sense, but that is because failure of the app
1011	* may have other disastrous problems. Cf runs out of a script
1012	* so is easily enough restarted without any real problems.
1013	* MSW 2001-07-01
1014	*/
1015	abort();
1016	}
1017	if(op->more!=NULL)
1018	remove_ob(op->more);
1019
1020	SET_FLAG(op, FLAG_REMOVED);	953	SET_FLAG (this, FLAG_REMOVED);
1021		954
		955	if (more)
		956	more->remove ();
		957
1022	/*	958	/*
1023	* In this case, the object to be removed is in someones	959	* In this case, the object to be removed is in someones
1024	* inventory.	960	* inventory.
1025	*/	961	*/
1026	if(op->env!=NULL) {	962	if (env)
		963	{
1027	if(op->nrof)	964	if (nrof)
1028	sub_weight(op->env, op->weight*op->nrof);	965	sub_weight (env, weight * nrof);
1029	else	966	else
1030	sub_weight(op->env, op->weight+op->carrying);	967	sub_weight (env, weight + carrying);
1031		968
1032	/* 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
1033	* made to players inventory. If set, avoiding the call	970	* made to players inventory. If set, avoiding the call
1034	* to save cpu time.	971	* to save cpu time.
1035	*/	972	*/
1036	if ((otmp=is_player_inv(op->env))!=NULL && otmp->contr &&	973	if ((otmp = in_player ()) && otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1037	!QUERY_FLAG(otmp,FLAG_NO_FIX_PLAYER))	974	otmp->update_stats ();
1038	fix_player(otmp);
1039		975
1040	if(op->above!=NULL)	976	if (above != NULL)
1041	op->above->below=op->below;	977	above->below = below;
1042	else	978	else
1043	op->env->inv=op->below;	979	env->inv = below;
1044		980
1045	if(op->below!=NULL)	981	if (below != NULL)
1046	op->below->above=op->above;	982	below->above = above;
1047		983
1048	/* we set up values so that it could be inserted into	984	/* we set up values so that it could be inserted into
1049	* 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
1050	* to the caller to decide what we want to do.	986	* to the caller to decide what we want to do.
		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	/* Re did the following section of code - it looks like it had
		996	* lots of logic for things we no longer care about
		997	*/
		998
		999	/* link the object above us */
		1000	if (above)
		1001	above->below = below;
		1002	else
		1003	map->at (x, y).top = below; /* we were top, set new top */
		1004
		1005	/* Relink the object below us, if there is one */
		1006	if (below)
		1007	below->above = above;
		1008	else
		1009	{
		1010	/* Nothing below, which means we need to relink map object for this space
		1011	* use translated coordinates in case some oddness with map tiling is
		1012	* evident
1051	*/	1013	*/
1052	op->x=op->env->x,op->y=op->env->y;	1014	if (GET_MAP_OB (map, x, y) != this)
1053	op->map=op->env->map;	1015	{
1054	op->above=NULL,op->below=NULL;	1016	char *dump = dump_object (this);
1055	op->env=NULL;	1017	LOG (llevError,
		1018	"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);
		1019	free (dump);
		1020	dump = dump_object (GET_MAP_OB (map, x, y));
		1021	LOG (llevError, "%s\n", dump);
		1022	free (dump);
		1023	}
		1024
		1025	map->at (x, y).bottom = above; /* goes on above it. */
		1026	}
		1027
		1028	above = 0;
		1029	below = 0;
		1030
		1031	if (map->in_memory == MAP_SAVING)
1056	return;	1032	return;
1057	}
1058		1033
1059	/* If we get here, we are removing it from a map */	1034	check_walk_off = !QUERY_FLAG (this, FLAG_NO_APPLY);
1060	if (op->map == NULL) return;
1061		1035
1062	x = op->x;	1036	for (tmp = GET_MAP_OB (map, x, y); tmp; tmp = tmp->above)
1063	y = op->y;	1037	{
1064	m = get_map_from_coord(op->map, &x, &y);	1038	/* No point updating the players look faces if he is the object
1065		1039	* being removed.
1066	if (!m) {
1067	LOG(llevError,"remove_ob called when object was on map but appears to not be within valid coordinates? %s (%d,%d)\n",
1068	op->map->path, op->x, op->y);
1069	/* in old days, we used to set x and y to 0 and continue.
1070	* it seems if we get into this case, something is probablye
1071	* screwed up and should be fixed.
1072	*/	1040	*/
1073	abort();
1074	}
1075	if (op->map != m) {
1076	LOG(llevDebug,"remove_ob: Object not really on map it claimed to be on? %s != %s, %d,%d != %d,%d\n",
1077	op->map->path, m->path, op->x, op->y, x, y);
1078	}
1079		1041
1080	/* Re did the following section of code - it looks like it had	1042	if (tmp->type == PLAYER && tmp != this)
1081	* lots of logic for things we no longer care about	1043	{
1082	*/	1044	/* If a container that the player is currently using somehow gets
1083		1045	* removed (most likely destroyed), update the player view
1084	/* link the object above us */	1046	* appropriately.
1085	if (op->above)
1086	op->above->below=op->below;
1087	else
1088	SET_MAP_TOP(m,x,y,op->below); /* we were top, set new top */
1089
1090	/* Relink the object below us, if there is one */
1091	if(op->below) {
1092	op->below->above=op->above;
1093	} else {
1094	/* Nothing below, which means we need to relink map object for this space
1095	* use translated coordinates in case some oddness with map tiling is
1096	* evident
1097	*/	1047	*/
1098	if(GET_MAP_OB(m,x,y)!=op) {	1048	if (tmp->container == this)
1099	dump_object(op);	1049	{
1100	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);	1050	CLEAR_FLAG (this, FLAG_APPLIED);
1101	dump_object(GET_MAP_OB(m,x,y));	1051	tmp->container = 0;
1102	LOG(llevError,"%s\n",errmsg);	1052	}
		1053
		1054	tmp->contr->ns->floorbox_update ();
		1055	}
		1056
		1057	/* See if player moving off should effect something */
		1058	if (check_walk_off
		1059	&& ((move_type & tmp->move_off)
		1060	&& (move_type & ~tmp->move_off & ~tmp->move_block) == 0))
		1061	{
		1062	move_apply (tmp, this, 0);
		1063
		1064	if (destroyed ())
		1065	LOG (llevError, "BUG: remove_ob(): name %s, destroyed leaving object\n", tmp->debug_desc ());
		1066	}
		1067
		1068	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */
		1069
		1070	if (tmp->above == tmp)
		1071	tmp->above = 0;
		1072
		1073	last = tmp;
1103	}	1074	}
1104	SET_MAP_OB(m,x,y,op->above); /* goes on above it. */
1105	}
1106	op->above=NULL;
1107	op->below=NULL;
1108		1075
1109	if (op->map->in_memory == MAP_SAVING)
1110	return;
1111
1112	tag = op->count;
1113	check_walk_off = ! QUERY_FLAG (op, FLAG_NO_APPLY);
1114	for(tmp=GET_MAP_OB(m,x,y);tmp!=NULL;tmp=tmp->above) {
1115	/* No point updating the players look faces if he is the object
1116	* being removed.
1117	*/
1118
1119	if(tmp->type==PLAYER && tmp!=op) {
1120	/* If a container that the player is currently using somehow gets
1121	* removed (most likely destroyed), update the player view
1122	* appropriately.
1123	*/
1124	if (tmp->container==op) {
1125	CLEAR_FLAG(op, FLAG_APPLIED);
1126	tmp->container=NULL;
1127	}
1128	tmp->contr->socket.update_look=1;
1129	}
1130	/* See if player moving off should effect something */
1131	if (check_walk_off && ((op->move_type & tmp->move_off) &&
1132	(op->move_type & ~tmp->move_off & ~tmp->move_block)==0)) {
1133
1134	move_apply(tmp, op, NULL);
1135	if (was_destroyed (op, tag)) {
1136	LOG (llevError, "BUG: remove_ob(): name %s, archname %s destroyed "
1137	"leaving object\n", &tmp->name, &tmp->arch->name);
1138	}
1139	}
1140
1141	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */
1142
1143	if(tmp->above == tmp)
1144	tmp->above = NULL;
1145	last=tmp;
1146	}
1147	/* last == NULL of there are no objects on this space */	1076	/* last == NULL of there are no objects on this space */
1148	if (last==NULL) {	1077	if (!last)
1149	/* set P_NEED_UPDATE, otherwise update_position will complain. In theory,	1078	map->at (x, y).flags_ = P_NEED_UPDATE;
1150	* we could preserve the flags (GET_MAP_FLAGS), but update_position figures
1151	* those out anyways, and if there are any flags set right now, they won't
1152	* be correct anyways.
1153	*/
1154	SET_MAP_FLAGS(op->map, op->x, op->y, P_NEED_UPDATE);
1155	update_position(op->map, op->x, op->y);
1156	}
1157	else	1079	else
1158	update_object(last, UP_OBJ_REMOVE);	1080	update_object (last, UP_OBJ_REMOVE);
1159		1081
1160	if(QUERY_FLAG(op,FLAG_BLOCKSVIEW)|| (op->glow_radius != 0))	1082	if (QUERY_FLAG (this, FLAG_BLOCKSVIEW) || glow_radius)
1161	update_all_los(op->map, op->x, op->y);	1083	update_all_los (map, x, y);
1162		1084	}
1163	}	1085	}
1164		1086
1165	/*	1087	/*
1166	* merge_ob(op,top):	1088	* merge_ob(op,top):
1167	*	1089	*
1168	* This function goes through all objects below and including top, and	1090	* This function goes through all objects below and including top, and
1169	* merges op to the first matching object.	1091	* merges op to the first matching object.
1170	* If top is NULL, it is calculated.	1092	* If top is NULL, it is calculated.
1171	* Returns pointer to object if it succeded in the merge, otherwise NULL	1093	* Returns pointer to object if it succeded in the merge, otherwise NULL
1172	*/	1094	*/
1173		1095	object *
1174	object *merge_ob(object *op, object *top) {	1096	merge_ob (object *op, object *top)
		1097	{
1175	if(!op->nrof)	1098	if (!op->nrof)
1176	return 0;	1099	return 0;
		1100
1177	if(top==NULL)	1101	if (top == NULL)
1178	for(top=op;top!=NULL&&top->above!=NULL;top=top->above);	1102	for (top = op; top != NULL && top->above != NULL; top = top->above);
		1103
1179	for(;top!=NULL;top=top->below) {	1104	for (; top != NULL; top = top->below)
		1105	{
1180	if(top==op)	1106	if (top == op)
1181	continue;	1107	continue;
1182	if (CAN_MERGE(op,top))	1108
1183	{	1109	if (object::can_merge (op, top))
		1110	{
1184	top->nrof+=op->nrof;	1111	top->nrof += op->nrof;
		1112
1185	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/	1113	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/
1186	op->weight = 0; /* Don't want any adjustements now */	1114	op->weight = 0; /* Don't want any adjustements now */
1187	remove_ob(op);	1115	op->destroy ();
1188	free_object(op);
1189	return top;	1116	return top;
1190	}	1117	}
1191	}	1118	}
		1119
1192	return NULL;	1120	return 0;
1193	}	1121	}
1194		1122
1195	/*	1123	/*
1196	* same as insert_ob_in_map except it handle separate coordinates and do a clean	1124	* same as insert_ob_in_map except it handle separate coordinates and do a clean
1197	* job preparing multi-part monsters	1125	* job preparing multi-part monsters
1198	*/	1126	*/
		1127	object *
1199	object *insert_ob_in_map_at(object *op, mapstruct *m, object *originator, int flag, int x, int y){	1128	insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)
		1129	{
1200	object* tmp;	1130	object *tmp;
		1131
1201	if (op->head)	1132	if (op->head)
1202	op=op->head;	1133	op = op->head;
		1134
1203	for (tmp=op;tmp;tmp=tmp->more){	1135	for (tmp = op; tmp; tmp = tmp->more)
		1136	{
1204	tmp->x=x+tmp->arch->clone.x;	1137	tmp->x = x + tmp->arch->clone.x;
1205	tmp->y=y+tmp->arch->clone.y;	1138	tmp->y = y + tmp->arch->clone.y;
1206	}	1139	}
		1140
1207	return insert_ob_in_map (op, m, originator, flag);	1141	return insert_ob_in_map (op, m, originator, flag);
1208	}	1142	}
1209		1143
1210	/*	1144	/*
1211	* insert_ob_in_map (op, map, originator, flag):	1145	* insert_ob_in_map (op, map, originator, flag):
1212	* This function inserts the object in the two-way linked list	1146	* This function inserts the object in the two-way linked list
…		…
1226	* new object if 'op' was merged with other object	1160	* new object if 'op' was merged with other object
1227	* NULL if 'op' was destroyed	1161	* NULL if 'op' was destroyed
1228	* just 'op' otherwise	1162	* just 'op' otherwise
1229	*/	1163	*/
1230		1164
		1165	object *
1231	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)
1232	{	1167	{
1233	object *tmp, *top, *floor=NULL;	1168	object *tmp, *top, *floor = NULL;
1234	sint16 x,y;	1169	sint16 x, y;
1235		1170
1236	if (QUERY_FLAG (op, FLAG_FREED)) {	1171	if (QUERY_FLAG (op, FLAG_FREED))
		1172	{
1237	LOG (llevError, "Trying to insert freed object!\n");	1173	LOG (llevError, "Trying to insert freed object!\n");
		1174	return NULL;
		1175	}
		1176
		1177	if (m == NULL)
		1178	{
		1179	char *dump = dump_object (op);
		1180	LOG (llevError, "Trying to insert in null-map!\n%s\n", dump);
		1181	free (dump);
		1182	return op;
		1183	}
		1184
		1185	if (out_of_map (m, op->x, op->y))
		1186	{
		1187	char *dump = dump_object (op);
		1188	LOG (llevError, "Trying to insert object outside the map.\n%s\n", dump);
		1189	#ifdef MANY_CORES
		1190	/* Better to catch this here, as otherwise the next use of this object
		1191	* is likely to cause a crash. Better to find out where it is getting
		1192	* improperly inserted.
		1193	*/
		1194	abort ();
		1195	#endif
		1196	free (dump);
		1197	return op;
		1198	}
		1199
		1200	if (!QUERY_FLAG (op, FLAG_REMOVED))
		1201	{
		1202	char *dump = dump_object (op);
		1203	LOG (llevError, "Trying to insert (map) inserted object.\n%s\n", dump);
		1204	free (dump);
		1205	return op;
		1206	}
		1207
		1208	if (op->more != NULL)
		1209	{
		1210	/* The part may be on a different map. */
		1211
		1212	object *more = op->more;
		1213
		1214	/* We really need the caller to normalize coordinates - if
		1215	* we set the map, that doesn't work if the location is within
		1216	* a map and this is straddling an edge. So only if coordinate
		1217	* is clear wrong do we normalize it.
		1218	*/
		1219	if (OUT_OF_REAL_MAP (more->map, more->x, more->y))
		1220	more->map = get_map_from_coord (m, &more->x, &more->y);
		1221	else if (!more->map)
		1222	{
		1223	/* For backwards compatibility - when not dealing with tiled maps,
		1224	* more->map should always point to the parent.
		1225	*/
		1226	more->map = m;
		1227	}
		1228
		1229	if (insert_ob_in_map (more, more->map, originator, flag) == NULL)
		1230	{
		1231	if (!op->head)
		1232	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");
		1233
		1234	return NULL;
		1235	}
		1236	}
		1237
		1238	CLEAR_FLAG (op, FLAG_REMOVED);
		1239
		1240	/* Ideally, the caller figures this out. However, it complicates a lot
		1241	* of areas of callers (eg, anything that uses find_free_spot would now
		1242	* need extra work
		1243	*/
		1244	op->map = get_map_from_coord (m, &op->x, &op->y);
		1245	x = op->x;
		1246	y = op->y;
		1247
		1248	/* this has to be done after we translate the coordinates.
		1249	*/
		1250	if (op->nrof && !(flag & INS_NO_MERGE))
		1251	for (tmp = GET_MAP_OB (op->map, x, y); tmp != NULL; tmp = tmp->above)
		1252	if (object::can_merge (op, tmp))
		1253	{
		1254	op->nrof += tmp->nrof;
		1255	tmp->destroy ();
		1256	}
		1257
		1258	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */
		1259	CLEAR_FLAG (op, FLAG_INV_LOCKED);
		1260
		1261	if (!QUERY_FLAG (op, FLAG_ALIVE))
		1262	CLEAR_FLAG (op, FLAG_NO_STEAL);
		1263
		1264	if (flag & INS_BELOW_ORIGINATOR)
		1265	{
		1266	if (originator->map != op->map || originator->x != op->x || originator->y != op->y)
		1267	{
		1268	LOG (llevError, "insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");
		1269	abort ();
		1270	}
		1271
		1272	op->above = originator;
		1273	op->below = originator->below;
		1274
		1275	if (op->below)
		1276	op->below->above = op;
		1277	else
		1278	op->ms ().bottom = op;
		1279
		1280	/* since *below* originator, no need to update top */
		1281	originator->below = op;
		1282	}
		1283	else
		1284	{
		1285	/* If there are other objects, then */
		1286	if ((!(flag & INS_MAP_LOAD)) && ((top = GET_MAP_OB (op->map, op->x, op->y)) != NULL))
		1287	{
		1288	object *last = NULL;
		1289
		1290	/*
		1291	* If there are multiple objects on this space, we do some trickier handling.
		1292	* We've already dealt with merging if appropriate.
		1293	* Generally, we want to put the new object on top. But if
		1294	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last
		1295	* floor, we want to insert above that and no further.
		1296	* Also, if there are spell objects on this space, we stop processing
		1297	* once we get to them. This reduces the need to traverse over all of
		1298	* them when adding another one - this saves quite a bit of cpu time
		1299	* when lots of spells are cast in one area. Currently, it is presumed
		1300	* that flying non pickable objects are spell objects.
		1301	*/
		1302
		1303	while (top != NULL)
		1304	{
		1305	if (QUERY_FLAG (top, FLAG_IS_FLOOR) || QUERY_FLAG (top, FLAG_OVERLAY_FLOOR))
		1306	floor = top;
		1307
		1308	if (QUERY_FLAG (top, FLAG_NO_PICK) && (top->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (top, FLAG_IS_FLOOR))
		1309	{
		1310	/* We insert above top, so we want this object below this */
		1311	top = top->below;
		1312	break;
		1313	}
		1314
		1315	last = top;
		1316	top = top->above;
		1317	}
		1318
		1319	/* Don't want top to be NULL, so set it to the last valid object */
		1320	top = last;
		1321
		1322	/* We let update_position deal with figuring out what the space
		1323	* looks like instead of lots of conditions here.
		1324	* makes things faster, and effectively the same result.
		1325	*/
		1326
		1327	/* Have object 'fall below' other objects that block view.
		1328	* Unless those objects are exits, type 66
		1329	* If INS_ON_TOP is used, don't do this processing
		1330	* Need to find the object that in fact blocks view, otherwise
		1331	* stacking is a bit odd.
		1332	*/
		1333	if (!(flag & INS_ON_TOP) &&
		1334	(get_map_flags (op->map, 0, op->x, op->y, 0, 0) & P_BLOCKSVIEW) && (op->face && !op->face->visibility))
		1335	{
		1336	for (last = top; last != floor; last = last->below)
		1337	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))
		1338	break;
		1339	/* Check to see if we found the object that blocks view,
		1340	* and make sure we have a below pointer for it so that
		1341	* we can get inserted below this one, which requires we
		1342	* set top to the object below us.
		1343	*/
		1344	if (last && last->below && last != floor)
		1345	top = last->below;
		1346	}
		1347	} /* If objects on this space */
		1348
		1349	if (flag & INS_MAP_LOAD)
		1350	top = GET_MAP_TOP (op->map, op->x, op->y);
		1351
		1352	if (flag & INS_ABOVE_FLOOR_ONLY)
		1353	top = floor;
		1354
		1355	/* Top is the object that our object (op) is going to get inserted above.
		1356	*/
		1357
		1358	/* First object on this space */
		1359	if (!top)
		1360	{
		1361	op->above = GET_MAP_OB (op->map, op->x, op->y);
		1362
		1363	if (op->above)
		1364	op->above->below = op;
		1365
		1366	op->below = NULL;
		1367	op->ms ().bottom = op;
		1368	}
		1369	else
		1370	{ /* get inserted into the stack above top */
		1371	op->above = top->above;
		1372
		1373	if (op->above)
		1374	op->above->below = op;
		1375
		1376	op->below = top;
		1377	top->above = op;
		1378	}
		1379
		1380	if (op->above == NULL)
		1381	op->ms ().top = op;
		1382	} /* else not INS_BELOW_ORIGINATOR */
		1383
		1384	if (op->type == PLAYER)
		1385	op->contr->do_los = 1;
		1386
		1387	/* If we have a floor, we know the player, if any, will be above
		1388	* it, so save a few ticks and start from there.
		1389	*/
		1390	if (!(flag & INS_MAP_LOAD))
		1391	if (object *pl = op->ms ().player ())
		1392	pl->contr->ns->floorbox_update ();
		1393
		1394	/* If this object glows, it may affect lighting conditions that are
		1395	* visible to others on this map. But update_all_los is really
		1396	* an inefficient way to do this, as it means los for all players
		1397	* on the map will get recalculated. The players could very well
		1398	* be far away from this change and not affected in any way -
		1399	* this should get redone to only look for players within range,
		1400	* or just updating the P_NEED_UPDATE for spaces within this area
		1401	* of effect may be sufficient.
		1402	*/
		1403	if (MAP_DARKNESS (op->map) && (op->glow_radius != 0))
		1404	update_all_los (op->map, op->x, op->y);
		1405
		1406	/* updates flags (blocked, alive, no magic, etc) for this map space */
		1407	update_object (op, UP_OBJ_INSERT);
		1408
		1409	/* Don't know if moving this to the end will break anything. However,
		1410	* we want to have floorbox_update called before calling this.
		1411	*
		1412	* check_move_on() must be after this because code called from
		1413	* check_move_on() depends on correct map flags (so functions like
		1414	* blocked() and wall() work properly), and these flags are updated by
		1415	* update_object().
		1416	*/
		1417
		1418	/* if this is not the head or flag has been passed, don't check walk on status */
		1419	if (!(flag & INS_NO_WALK_ON) && !op->head)
		1420	{
		1421	if (check_move_on (op, originator))
1238	return NULL;	1422	return NULL;
1239	}
1240	if(m==NULL) {
1241	dump_object(op);
1242	LOG(llevError,"Trying to insert in null-map!\n%s\n",errmsg);
1243	return op;
1244	}
1245	if(out_of_map(m,op->x,op->y)) {
1246	dump_object(op);
1247	LOG(llevError,"Trying to insert object outside the map.\n%s\n", errmsg);
1248	#ifdef MANY_CORES
1249	/* Better to catch this here, as otherwise the next use of this object
1250	* is likely to cause a crash. Better to find out where it is getting
1251	* improperly inserted.
1252	*/
1253	abort();
1254	#endif
1255	return op;
1256	}
1257	if(!QUERY_FLAG(op,FLAG_REMOVED)) {
1258	dump_object(op);
1259	LOG(llevError,"Trying to insert (map) inserted object.\n%s\n", errmsg);
1260	return op;
1261	}
1262	if(op->more!=NULL) {
1263	/* The part may be on a different map. */
1264		1423
1265	object *more = op->more;
1266
1267	/* We really need the caller to normalize coordinates - if
1268	* we set the map, that doesn't work if the location is within
1269	* a map and this is straddling an edge. So only if coordinate
1270	* is clear wrong do we normalize it.
1271	*/
1272	if (OUT_OF_REAL_MAP(more->map, more->x, more->y)) {
1273	more->map = get_map_from_coord(m, &more->x, &more->y);
1274	} else if (!more->map) {
1275	/* For backwards compatibility - when not dealing with tiled maps,
1276	* more->map should always point to the parent.
1277	*/
1278	more->map = m;
1279	}
1280
1281	if (insert_ob_in_map(more, more->map, originator, flag) == NULL) {
1282	if ( ! op->head)
1283	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");
1284	return NULL;
1285	}
1286	}
1287	CLEAR_FLAG(op,FLAG_REMOVED);
1288
1289	/* Ideally, the caller figures this out. However, it complicates a lot
1290	* of areas of callers (eg, anything that uses find_free_spot would now
1291	* need extra work
1292	*/
1293	op->map=get_map_from_coord(m, &op->x, &op->y);
1294	x = op->x;
1295	y = op->y;
1296
1297	/* this has to be done after we translate the coordinates.
1298	*/
1299	if(op->nrof && !(flag & INS_NO_MERGE)) {
1300	for(tmp=GET_MAP_OB(op->map,x,y);tmp!=NULL;tmp=tmp->above)
1301	if (CAN_MERGE(op,tmp)) {
1302	op->nrof+=tmp->nrof;
1303	remove_ob(tmp);
1304	free_object(tmp);
1305	}
1306	}
1307
1308	CLEAR_FLAG(op,FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */
1309	CLEAR_FLAG(op, FLAG_INV_LOCKED);
1310	if (!QUERY_FLAG(op, FLAG_ALIVE))
1311	CLEAR_FLAG(op, FLAG_NO_STEAL);
1312
1313	if (flag & INS_BELOW_ORIGINATOR) {
1314	if (originator->map != op->map || originator->x != op->x ||
1315	originator->y != op->y) {
1316	LOG(llevError,"insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");
1317	abort();
1318	}
1319	op->above = originator;
1320	op->below = originator->below;
1321	if (op->below) op->below->above = op;
1322	else SET_MAP_OB(op->map, op->x, op->y, op);
1323	/* since *below* originator, no need to update top */
1324	originator->below = op;
1325	} else {
1326	/* If there are other objects, then */
1327	if((! (flag & INS_MAP_LOAD)) && ((top=GET_MAP_OB(op->map,op->x,op->y))!=NULL)) {
1328	object *last=NULL;
1329	/*
1330	* If there are multiple objects on this space, we do some trickier handling.
1331	* We've already dealt with merging if appropriate.
1332	* Generally, we want to put the new object on top. But if
1333	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last
1334	* floor, we want to insert above that and no further.
1335	* Also, if there are spell objects on this space, we stop processing
1336	* once we get to them. This reduces the need to traverse over all of
1337	* them when adding another one - this saves quite a bit of cpu time
1338	* when lots of spells are cast in one area. Currently, it is presumed
1339	* that flying non pickable objects are spell objects.
1340	*/
1341
1342	while (top != NULL) {
1343	if (QUERY_FLAG(top, FLAG_IS_FLOOR) ||
1344	QUERY_FLAG(top, FLAG_OVERLAY_FLOOR)) floor = top;
1345	if (QUERY_FLAG(top, FLAG_NO_PICK)
1346	&& (top->move_type & (MOVE_FLY_LOW |MOVE_FLY_HIGH))
1347	&& !QUERY_FLAG(top, FLAG_IS_FLOOR))
1348	{
1349	/* We insert above top, so we want this object below this */
1350	top=top->below;
1351	break;
1352	}
1353	last = top;
1354	top = top->above;
1355	}
1356	/* Don't want top to be NULL, so set it to the last valid object */
1357	top = last;
1358
1359	/* We let update_position deal with figuring out what the space
1360	* looks like instead of lots of conditions here.
1361	* makes things faster, and effectively the same result.
1362	*/
1363
1364	/* Have object 'fall below' other objects that block view.
1365	* Unless those objects are exits, type 66
1366	* If INS_ON_TOP is used, don't do this processing
1367	* Need to find the object that in fact blocks view, otherwise
1368	* stacking is a bit odd.
1369	*/
1370	if (!(flag & INS_ON_TOP) &&
1371	(get_map_flags(op->map, NULL, op->x, op->y, NULL, NULL) & P_BLOCKSVIEW) &&
1372	(op->face && !op->face->visibility)) {
1373	for (last=top; last != floor; last=last->below)
1374	if (QUERY_FLAG(last, FLAG_BLOCKSVIEW)&&(last->type != EXIT)) break;
1375	/* Check to see if we found the object that blocks view,
1376	* and make sure we have a below pointer for it so that
1377	* we can get inserted below this one, which requires we
1378	* set top to the object below us.
1379	*/
1380	if (last && last->below && last != floor) top=last->below;
1381	}
1382	} /* If objects on this space */
1383	if (flag & INS_MAP_LOAD)
1384	top = GET_MAP_TOP(op->map,op->x,op->y);
1385	if (flag & INS_ABOVE_FLOOR_ONLY) top = floor;
1386
1387	/* Top is the object that our object (op) is going to get inserted above.
1388	*/
1389
1390	/* First object on this space */
1391	if (!top) {
1392	op->above = GET_MAP_OB(op->map, op->x, op->y);
1393	if (op->above) op->above->below = op;
1394	op->below = NULL;
1395	SET_MAP_OB(op->map, op->x, op->y, op);
1396	} else { /* get inserted into the stack above top */
1397	op->above = top->above;
1398	if (op->above) op->above->below = op;
1399	op->below = top;
1400	top->above = op;
1401	}
1402	if (op->above==NULL)
1403	SET_MAP_TOP(op->map,op->x, op->y, op);
1404	} /* else not INS_BELOW_ORIGINATOR */
1405
1406	if(op->type==PLAYER)
1407	op->contr->do_los=1;
1408
1409	/* If we have a floor, we know the player, if any, will be above
1410	* it, so save a few ticks and start from there.
1411	*/
1412	if (!(flag & INS_MAP_LOAD))
1413	for(tmp=floor?floor:GET_MAP_OB(op->map,op->x,op->y);tmp!=NULL;tmp=tmp->above) {
1414	if (tmp->type == PLAYER)
1415	tmp->contr->socket.update_look=1;
1416	}
1417
1418	/* If this object glows, it may affect lighting conditions that are
1419	* visible to others on this map. But update_all_los is really
1420	* an inefficient way to do this, as it means los for all players
1421	* on the map will get recalculated. The players could very well
1422	* be far away from this change and not affected in any way -
1423	* this should get redone to only look for players within range,
1424	* or just updating the P_NEED_UPDATE for spaces within this area
1425	* of effect may be sufficient.
1426	*/
1427	if(MAP_DARKNESS(op->map) && (op->glow_radius != 0))
1428	update_all_los(op->map, op->x, op->y);
1429
1430
1431	/* updates flags (blocked, alive, no magic, etc) for this map space */
1432	update_object(op,UP_OBJ_INSERT);
1433
1434
1435	/* Don't know if moving this to the end will break anything. However,
1436	* we want to have update_look set above before calling this.
1437	*
1438	* check_move_on() must be after this because code called from
1439	* check_move_on() depends on correct map flags (so functions like
1440	* blocked() and wall() work properly), and these flags are updated by
1441	* update_object().
1442	*/
1443
1444	/* if this is not the head or flag has been passed, don't check walk on status */
1445
1446	if (!(flag & INS_NO_WALK_ON) && !op->head) {
1447	if (check_move_on(op, originator))
1448	return NULL;
1449
1450	/* If we are a multi part object, lets work our way through the check	1424	/* If we are a multi part object, lets work our way through the check
1451	* walk on's.	1425	* walk on's.
1452	*/	1426	*/
1453	for (tmp=op->more; tmp!=NULL; tmp=tmp->more)	1427	for (tmp = op->more; tmp != NULL; tmp = tmp->more)
1454	if (check_move_on (tmp, originator))	1428	if (check_move_on (tmp, originator))
1455	return NULL;	1429	return NULL;
1456	}	1430	}
		1431
1457	return op;	1432	return op;
1458	}	1433	}
1459		1434
1460	/* this function inserts an object in the map, but if it	1435	/* this function inserts an object in the map, but if it
1461	* finds an object of its own type, it'll remove that one first.	1436	* finds an object of its own type, it'll remove that one first.
1462	* op is the object to insert it under: supplies x and the map.	1437	* op is the object to insert it under: supplies x and the map.
1463	*/	1438	*/
		1439	void
1464	void replace_insert_ob_in_map(const char *arch_string, object *op) {	1440	replace_insert_ob_in_map (const char *arch_string, object *op)
1465	object *tmp;	1441	{
1466	object *tmp1;	1442	object *tmp, *tmp1;
1467		1443
1468	/* first search for itself and remove any old instances */	1444	/* first search for itself and remove any old instances */
1469		1445
1470	for(tmp=GET_MAP_OB(op->map,op->x,op->y); tmp!=NULL; tmp=tmp->above) {	1446	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)
1471	if(!strcmp(tmp->arch->name,arch_string)) /* same archetype */ {	1447	if (!strcmp (tmp->arch->name, arch_string)) /* same archetype */
1472	remove_ob(tmp);	1448	tmp->destroy ();
1473	free_object(tmp);
1474	}
1475	}
1476		1449
1477	tmp1=arch_to_object(find_archetype(arch_string));	1450	tmp1 = arch_to_object (archetype::find (arch_string));
1478		1451
1479		1452	tmp1->x = op->x;
1480	tmp1->x = op->x; tmp1->y = op->y;	1453	tmp1->y = op->y;
1481	insert_ob_in_map(tmp1,op->map,op,0);	1454	insert_ob_in_map (tmp1, op->map, op, 0);
1482	}	1455	}
1483		1456
1484	/*	1457	/*
1485	* get_split_ob(ob,nr) splits up ob into two parts. The part which	1458	* get_split_ob(ob,nr) splits up ob into two parts. The part which
1486	* is returned contains nr objects, and the remaining parts contains	1459	* is returned contains nr objects, and the remaining parts contains
1487	* the rest (or is removed and freed if that number is 0).	1460	* the rest (or is removed and freed if that number is 0).
1488	* On failure, NULL is returned, and the reason put into the	1461	* On failure, NULL is returned, and the reason put into the
1489	* global static errmsg array.	1462	* global static errmsg array.
1490	*/	1463	*/
1491		1464
		1465	object *
1492	object *get_split_ob(object *orig_ob, uint32 nr) {	1466	get_split_ob (object *orig_ob, uint32 nr)
		1467	{
1493	object *newob;	1468	object *newob;
1494	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);	1469	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);
1495		1470
1496	if(orig_ob->nrof<nr) {	1471	if (orig_ob->nrof < nr)
1497	sprintf(errmsg,"There are only %d %ss.",	1472	{
1498	orig_ob->nrof?orig_ob->nrof:1, &orig_ob->name);	1473	sprintf (errmsg, "There are only %d %ss.", orig_ob->nrof ? orig_ob->nrof : 1, &orig_ob->name);
1499	return NULL;	1474	return NULL;
1500	}	1475	}
		1476
1501	newob = object_create_clone(orig_ob);	1477	newob = object_create_clone (orig_ob);
		1478
1502	if((orig_ob->nrof-=nr)<1) {	1479	if ((orig_ob->nrof -= nr) < 1)
1503	if ( ! is_removed)	1480	orig_ob->destroy (1);
1504	remove_ob(orig_ob);
1505	free_object2(orig_ob, 1);
1506	}
1507	else if ( ! is_removed) {	1481	else if (!is_removed)
		1482	{
1508	if(orig_ob->env!=NULL)	1483	if (orig_ob->env != NULL)
1509	sub_weight (orig_ob->env,orig_ob->weight*nr);	1484	sub_weight (orig_ob->env, orig_ob->weight * nr);
1510	if (orig_ob->env == NULL && orig_ob->map->in_memory!=MAP_IN_MEMORY) {	1485	if (orig_ob->env == NULL && orig_ob->map->in_memory != MAP_IN_MEMORY)
		1486	{
1511	strcpy(errmsg, "Tried to split object whose map is not in memory.");	1487	strcpy (errmsg, "Tried to split object whose map is not in memory.");
1512	LOG(llevDebug,
1513	"Error, Tried to split object whose map is not in memory.\n");	1488	LOG (llevDebug, "Error, Tried to split object whose map is not in memory.\n");
1514	return NULL;	1489	return NULL;
1515	}	1490	}
1516	}	1491	}
		1492
1517	newob->nrof=nr;	1493	newob->nrof = nr;
1518		1494
1519	return newob;	1495	return newob;
1520	}	1496	}
1521		1497
1522	/*	1498	/*
1523	* decrease_ob_nr(object, number) decreases a specified number from	1499	* decrease_ob_nr(object, number) decreases a specified number from
1524	* the amount of an object. If the amount reaches 0, the object	1500	* the amount of an object. If the amount reaches 0, the object
1525	* is subsequently removed and freed.	1501	* is subsequently removed and freed.
1526	*	1502	*
1527	* Return value: 'op' if something is left, NULL if the amount reached 0	1503	* Return value: 'op' if something is left, NULL if the amount reached 0
1528	*/	1504	*/
1529		1505
		1506	object *
1530	object *decrease_ob_nr (object *op, uint32 i)	1507	decrease_ob_nr (object *op, uint32 i)
1531	{	1508	{
1532	object *tmp;	1509	object *tmp;
1533	player *pl;
1534		1510
1535	if (i == 0) /* objects with op->nrof require this check */	1511	if (i == 0) /* objects with op->nrof require this check */
1536	return op;	1512	return op;
1537		1513
1538	if (i > op->nrof)	1514	if (i > op->nrof)
1539	i = op->nrof;	1515	i = op->nrof;
1540		1516
1541	if (QUERY_FLAG (op, FLAG_REMOVED))	1517	if (QUERY_FLAG (op, FLAG_REMOVED))
		1518	op->nrof -= i;
		1519	else if (op->env)
		1520	{
		1521	/* is this object in the players inventory, or sub container
		1522	* therein?
		1523	*/
		1524	tmp = op->in_player ();
		1525	/* nope. Is this a container the player has opened?
		1526	* If so, set tmp to that player.
		1527	* IMO, searching through all the players will mostly
		1528	* likely be quicker than following op->env to the map,
		1529	* and then searching the map for a player.
		1530	*/
		1531	if (!tmp)
		1532	for_all_players (pl)
		1533	if (pl->ob->container == op->env)
		1534	{
		1535	tmp = pl->ob;
		1536	break;
		1537	}
		1538
		1539	if (i < op->nrof)
		1540	{
		1541	sub_weight (op->env, op->weight * i);
		1542	op->nrof -= i;
		1543	if (tmp)
		1544	esrv_send_item (tmp, op);
		1545	}
		1546	else
		1547	{
		1548	op->remove ();
		1549	op->nrof = 0;
		1550	if (tmp)
		1551	esrv_del_item (tmp->contr, op->count);
		1552	}
1542	{	1553	}
		1554	else
		1555	{
		1556	object *above = op->above;
		1557
		1558	if (i < op->nrof)
1543	op->nrof -= i;	1559	op->nrof -= i;
1544	}	1560	else
1545	else if (op->env != NULL)
1546	{
1547	/* is this object in the players inventory, or sub container
1548	* therein?
1549	*/	1561	{
1550	tmp = is_player_inv (op->env);	1562	op->remove ();
1551	/* nope. Is this a container the player has opened?	1563	op->nrof = 0;
1552	* If so, set tmp to that player.
1553	* IMO, searching through all the players will mostly
1554	* likely be quicker than following op->env to the map,
1555	* and then searching the map for a player.
1556	*/
1557	if (!tmp) {
1558	for (pl=first_player; pl; pl=pl->next)
1559	if (pl->ob->container == op->env) break;
1560	if (pl) tmp=pl->ob;
1561	else tmp=NULL;
1562	}	1564	}
1563		1565
1564	if (i < op->nrof) {
1565	sub_weight (op->env, op->weight * i);
1566	op->nrof -= i;
1567	if (tmp) {
1568	esrv_send_item(tmp, op);
1569	}
1570	} else {
1571	remove_ob (op);
1572	op->nrof = 0;
1573	if (tmp) {
1574	esrv_del_item(tmp->contr, op->count);
1575	}
1576	}
1577	}
1578	else
1579	{
1580	object *above = op->above;
1581
1582	if (i < op->nrof) {
1583	op->nrof -= i;
1584	} else {
1585	remove_ob (op);
1586	op->nrof = 0;
1587	}
1588	/* Since we just removed op, op->above is null */	1566	/* Since we just removed op, op->above is null */
1589	for (tmp = above; tmp != NULL; tmp = tmp->above)	1567	for (tmp = above; tmp; tmp = tmp->above)
1590	if (tmp->type == PLAYER) {	1568	if (tmp->type == PLAYER)
		1569	{
1591	if (op->nrof)	1570	if (op->nrof)
1592	esrv_send_item(tmp, op);	1571	esrv_send_item (tmp, op);
1593	else	1572	else
1594	esrv_del_item(tmp->contr, op->count);	1573	esrv_del_item (tmp->contr, op->count);
1595	}	1574	}
1596	}	1575	}
1597		1576
1598	if (op->nrof) {	1577	if (op->nrof)
1599	return op;	1578	return op;
1600	} else {	1579	else
1601	free_object (op);	1580	{
		1581	op->destroy ();
1602	return NULL;	1582	return 0;
1603	}	1583	}
1604	}	1584	}
1605		1585
1606	/*	1586	/*
1607	* add_weight(object, weight) adds the specified weight to an object,	1587	* add_weight(object, weight) adds the specified weight to an object,
1608	* and also updates how much the environment(s) is/are carrying.	1588	* and also updates how much the environment(s) is/are carrying.
1609	*/	1589	*/
1610		1590
		1591	void
1611	void add_weight (object *op, signed long weight) {	1592	add_weight (object *op, signed long weight)
		1593	{
1612	while (op!=NULL) {	1594	while (op != NULL)
		1595	{
1613	if (op->type == CONTAINER) {	1596	if (op->type == CONTAINER)
1614	weight=(signed long)(weight*(100-op->stats.Str)/100);	1597	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1615	}	1598
1616	op->carrying+=weight;	1599	op->carrying += weight;
1617	op=op->env;	1600	op = op->env;
1618	}	1601	}
1619	}	1602	}
1620		1603
		1604	object *
		1605	insert_ob_in_ob (object *op, object *where)
		1606	{
		1607	if (!where)
		1608	{
		1609	char *dump = dump_object (op);
		1610	LOG (llevError, "Trying to put object in NULL.\n%s\n", dump);
		1611	free (dump);
		1612	return op;
		1613	}
		1614
		1615	if (where->head)
		1616	{
		1617	LOG (llevDebug, "Warning: Tried to insert object into wrong part of multipart object.\n");
		1618	where = where->head;
		1619	}
		1620
		1621	return where->insert (op);
		1622	}
		1623
1621	/*	1624	/*
1622	* insert_ob_in_ob(op,environment):	1625	* env->insert (op)
1623	* This function inserts the object op in the linked list	1626	* This function inserts the object op in the linked list
1624	* inside the object environment.	1627	* inside the object environment.
1625	*	1628	*
1626	* Eneq(@csd.uu.se): Altered insert_ob_in_ob to make things picked up enter
1627	* the inventory at the last position or next to other objects of the same
1628	* type.
1629	* Frank: Now sorted by type, archetype and magic!
1630	*
1631	* The function returns now pointer to inserted item, and return value can	1629	* The function returns now pointer to inserted item, and return value can
1632	* be != op, if items are merged. -Tero	1630	* be != op, if items are merged. -Tero
1633	*/	1631	*/
1634		1632
1635	object *insert_ob_in_ob(object *op,object *where) {	1633	object *
		1634	object::insert (object *op)
		1635	{
1636	object *tmp, *otmp;	1636	object *tmp, *otmp;
1637		1637
1638	if(!QUERY_FLAG(op,FLAG_REMOVED)) {	1638	if (!QUERY_FLAG (op, FLAG_REMOVED))
1639	dump_object(op);	1639	op->remove ();
1640	LOG(llevError,"Trying to insert (ob) inserted object.\n%s\n", errmsg);	1640
1641	return op;
1642	}
1643	if(where==NULL) {
1644	dump_object(op);
1645	LOG(llevError,"Trying to put object in NULL.\n%s\n", errmsg);
1646	return op;
1647	}
1648	if (where->head) {
1649	LOG(llevDebug,
1650	"Warning: Tried to insert object wrong part of multipart object.\n");
1651	where = where->head;
1652	}
1653	if (op->more) {	1641	if (op->more)
		1642	{
1654	LOG(llevError, "Tried to insert multipart object %s (%d)\n",	1643	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);
1655	&op->name, op->count);
1656	return op;	1644	return op;
1657	}	1645	}
		1646
1658	CLEAR_FLAG(op, FLAG_OBJ_ORIGINAL);	1647	CLEAR_FLAG (op, FLAG_OBJ_ORIGINAL);
1659	CLEAR_FLAG(op, FLAG_REMOVED);	1648	CLEAR_FLAG (op, FLAG_REMOVED);
1660	if(op->nrof) {	1649	if (op->nrof)
		1650	{
1661	for(tmp=where->inv;tmp!=NULL;tmp=tmp->below)	1651	for (tmp = inv; tmp != NULL; tmp = tmp->below)
1662	if ( CAN_MERGE(tmp,op) ) {	1652	if (object::can_merge (tmp, op))
		1653	{
1663	/* return the original object and remove inserted object	1654	/* return the original object and remove inserted object
1664	(client needs the original object) */	1655	(client needs the original object) */
1665	tmp->nrof += op->nrof;	1656	tmp->nrof += op->nrof;
1666	/* Weight handling gets pretty funky. Since we are adding to	1657	/* Weight handling gets pretty funky. Since we are adding to
1667	* tmp->nrof, we need to increase the weight.	1658	* tmp->nrof, we need to increase the weight.
1668	*/	1659	*/
1669	add_weight (where, op->weight*op->nrof);	1660	add_weight (this, op->weight * op->nrof);
1670	SET_FLAG(op, FLAG_REMOVED);	1661	SET_FLAG (op, FLAG_REMOVED);
1671	free_object(op); /* free the inserted object */	1662	op->destroy (); /* free the inserted object */
1672	op = tmp;	1663	op = tmp;
1673	remove_ob (op); /* and fix old object's links */	1664	op->remove (); /* and fix old object's links */
1674	CLEAR_FLAG(op, FLAG_REMOVED);	1665	CLEAR_FLAG (op, FLAG_REMOVED);
1675	break;	1666	break;
1676	}	1667	}
1677		1668
1678	/* I assume combined objects have no inventory	1669	/* I assume combined objects have no inventory
1679	* We add the weight - this object could have just been removed	1670	* We add the weight - this object could have just been removed
1680	* (if it was possible to merge). calling remove_ob will subtract	1671	* (if it was possible to merge). calling remove_ob will subtract
1681	* the weight, so we need to add it in again, since we actually do	1672	* the weight, so we need to add it in again, since we actually do
1682	* the linking below	1673	* the linking below
1683	*/	1674	*/
1684	add_weight (where, op->weight*op->nrof);	1675	add_weight (this, op->weight * op->nrof);
		1676	}
1685	} else	1677	else
1686	add_weight (where, (op->weight+op->carrying));	1678	add_weight (this, (op->weight + op->carrying));
1687		1679
1688	otmp=is_player_inv(where);	1680	otmp = this->in_player ();
1689	if (otmp&&otmp->contr!=NULL) {	1681	if (otmp && otmp->contr)
1690	if (!QUERY_FLAG(otmp,FLAG_NO_FIX_PLAYER))	1682	if (!QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1691	fix_player(otmp);	1683	otmp->update_stats ();
1692	}
1693		1684
1694	op->map=NULL;	1685	op->map = 0;
1695	op->env=where;	1686	op->env = this;
1696	op->above=NULL;	1687	op->above = 0;
1697	op->below=NULL;	1688	op->below = 0;
1698	op->x=0,op->y=0;	1689	op->x = 0, op->y = 0;
1699		1690
1700	/* reset the light list and los of the players on the map */	1691	/* reset the light list and los of the players on the map */
1701	if((op->glow_radius!=0)&&where->map)	1692	if ((op->glow_radius != 0) && map)
1702	{	1693	{
1703	#ifdef DEBUG_LIGHTS	1694	#ifdef DEBUG_LIGHTS
1704	LOG(llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n",	1695	LOG (llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n", op->name);
1705	op->name);
1706	#endif /* DEBUG_LIGHTS */	1696	#endif /* DEBUG_LIGHTS */
1707	if (MAP_DARKNESS(where->map)) update_all_los(where->map, where->x, where->y);	1697	if (MAP_DARKNESS (map))
		1698	update_all_los (map, x, y);
1708	}	1699	}
1709		1700
1710	/* Client has no idea of ordering so lets not bother ordering it here.	1701	/* Client has no idea of ordering so lets not bother ordering it here.
1711	* It sure simplifies this function...	1702	* It sure simplifies this function...
1712	*/	1703	*/
1713	if (where->inv==NULL)	1704	if (!inv)
1714	where->inv=op;	1705	inv = op;
1715	else {	1706	else
		1707	{
1716	op->below = where->inv;	1708	op->below = inv;
1717	op->below->above = op;	1709	op->below->above = op;
1718	where->inv = op;	1710	inv = op;
1719	}	1711	}
		1712
1720	return op;	1713	return op;
1721	}	1714	}
1722		1715
1723	/*	1716	/*
1724	* Checks if any objects has a move_type that matches objects	1717	* Checks if any objects has a move_type that matches objects
…		…
1739	* MSW 2001-07-08: Check all objects on space, not just those below	1732	* MSW 2001-07-08: Check all objects on space, not just those below
1740	* object being inserted. insert_ob_in_map may not put new objects	1733	* object being inserted. insert_ob_in_map may not put new objects
1741	* on top.	1734	* on top.
1742	*/	1735	*/
1743		1736
		1737	int
1744	int check_move_on (object *op, object *originator)	1738	check_move_on (object *op, object *originator)
1745	{	1739	{
1746	object *tmp;	1740	object *tmp;
1747	tag_t tag;
1748	mapstruct *m=op->map;	1741	maptile *m = op->map;
1749	int x=op->x, y=op->y;	1742	int x = op->x, y = op->y;
		1743
1750	MoveType move_on, move_slow, move_block;	1744	MoveType move_on, move_slow, move_block;
1751		1745
1752	if(QUERY_FLAG(op,FLAG_NO_APPLY))	1746	if (QUERY_FLAG (op, FLAG_NO_APPLY))
1753	return 0;	1747	return 0;
1754		1748
1755	tag = op->count;
1756
1757	move_on = GET_MAP_MOVE_ON(op->map, op->x, op->y);	1749	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);
1758	move_slow = GET_MAP_MOVE_SLOW(op->map, op->x, op->y);	1750	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);
1759	move_block = GET_MAP_MOVE_BLOCK(op->map, op->x, op->y);	1751	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);
1760		1752
1761	/* if nothing on this space will slow op down or be applied,	1753	/* if nothing on this space will slow op down or be applied,
1762	* no need to do checking below. have to make sure move_type	1754	* no need to do checking below. have to make sure move_type
1763	* is set, as lots of objects don't have it set - we treat that	1755	* is set, as lots of objects don't have it set - we treat that
1764	* as walking.	1756	* as walking.
1765	*/	1757	*/
1766	if (op->move_type && !(op->move_type & move_on) && !(op->move_type & move_slow))	1758	if (op->move_type && !(op->move_type & move_on) && !(op->move_type & move_slow))
1767	return 0;	1759	return 0;
1768		1760
1769	/* This is basically inverse logic of that below - basically,	1761	/* This is basically inverse logic of that below - basically,
1770	* if the object can avoid the move on or slow move, they do so,	1762	* if the object can avoid the move on or slow move, they do so,
1771	* but can't do it if the alternate movement they are using is	1763	* but can't do it if the alternate movement they are using is
1772	* blocked. Logic on this seems confusing, but does seem correct.	1764	* blocked. Logic on this seems confusing, but does seem correct.
1773	*/	1765	*/
1774	if ((op->move_type & ~move_on & ~move_block) != 0 &&	1766	if ((op->move_type & ~move_on & ~move_block) != 0 && (op->move_type & ~move_slow & ~move_block) != 0)
1775	(op->move_type & ~move_slow & ~move_block) != 0) return 0;	1767	return 0;
1776		1768
1777	/* The objects have to be checked from top to bottom.	1769	/* The objects have to be checked from top to bottom.
1778	* Hence, we first go to the top:	1770	* Hence, we first go to the top:
1779	*/	1771	*/
1780		1772
1781	for (tmp=GET_MAP_OB(op->map, op->x, op->y); tmp!=NULL &&	1773	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL && tmp->above != NULL; tmp = tmp->above)
1782	tmp->above!=NULL; tmp=tmp->above) {	1774	{
1783	/* Trim the search when we find the first other spell effect	1775	/* Trim the search when we find the first other spell effect
1784	* this helps performance so that if a space has 50 spell objects,	1776	* this helps performance so that if a space has 50 spell objects,
1785	* we don't need to check all of them.	1777	* we don't need to check all of them.
1786	*/	1778	*/
1787	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG(tmp, FLAG_NO_PICK)) break;	1779	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG (tmp, FLAG_NO_PICK))
		1780	break;
		1781	}
		1782
		1783	for (; tmp; tmp = tmp->below)
1788	}	1784	{
1789	for(;tmp!=NULL; tmp=tmp->below) {	1785	if (tmp == op)
1790	if (tmp == op) continue; /* Can't apply yourself */	1786	continue; /* Can't apply yourself */
1791		1787
1792	/* Check to see if one of the movement types should be slowed down.	1788	/* Check to see if one of the movement types should be slowed down.
1793	* Second check makes sure that the movement types not being slowed	1789	* Second check makes sure that the movement types not being slowed
1794	* (~slow_move) is not blocked on this space - just because the	1790	* (~slow_move) is not blocked on this space - just because the
1795	* space doesn't slow down swimming (for example), if you can't actually	1791	* space doesn't slow down swimming (for example), if you can't actually
1796	* swim on that space, can't use it to avoid the penalty.	1792	* swim on that space, can't use it to avoid the penalty.
1797	*/	1793	*/
1798	if (!QUERY_FLAG(op, FLAG_WIZPASS)) {	1794	if (!QUERY_FLAG (op, FLAG_WIZPASS))
		1795	{
1799	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||	1796	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||
1800	((op->move_type & tmp->move_slow) &&
1801	(op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0)) {	1797	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))
		1798	{
1802		1799
1803	float diff;	1800	float
1804
1805	diff = tmp->move_slow_penalty*FABS(op->speed);	1801	diff = tmp->move_slow_penalty * FABS (op->speed);
		1802
1806	if (op->type == PLAYER) {	1803	if (op->type == PLAYER)
1807	if ((QUERY_FLAG(tmp, FLAG_IS_HILLY) && find_skill_by_number(op, SK_CLIMBING)) ||	1804	if ((QUERY_FLAG (tmp, FLAG_IS_HILLY) && find_skill_by_number (op, SK_CLIMBING)) ||
1808	(QUERY_FLAG(tmp, FLAG_IS_WOODED) && find_skill_by_number(op, SK_WOODSMAN))) {	1805	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))
1809	diff /= 4.0;	1806	diff /= 4.0;
1810	}	1807
1811	}
1812	op->speed_left -= diff;	1808	op->speed_left -= diff;
1813	}	1809	}
1814	}	1810	}
1815		1811
1816	/* Basically same logic as above, except now for actual apply. */	1812	/* Basically same logic as above, except now for actual apply. */
1817	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||	1813	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||
1818	((op->move_type & tmp->move_on) &&
1819	(op->move_type & ~tmp->move_on & ~tmp->move_block)==0)) {	1814	((op->move_type & tmp->move_on) && (op->move_type & ~tmp->move_on & ~tmp->move_block) == 0))
1820		1815	{
1821	move_apply(tmp, op, originator);	1816	move_apply (tmp, op, originator);
		1817
1822	if (was_destroyed (op, tag))	1818	if (op->destroyed ())
1823	return 1;	1819	return 1;
1824		1820
1825	/* what the person/creature stepped onto has moved the object	1821	/* what the person/creature stepped onto has moved the object
1826	* someplace new. Don't process any further - if we did,	1822	* someplace new. Don't process any further - if we did,
1827	* have a feeling strange problems would result.	1823	* have a feeling strange problems would result.
1828	*/	1824	*/
1829	if (op->map != m || op->x != x || op->y != y) return 0;	1825	if (op->map != m || op->x != x || op->y != y)
		1826	return 0;
1830	}	1827	}
1831	}	1828	}
		1829
1832	return 0;	1830	return 0;
1833	}	1831	}
1834		1832
1835	/*	1833	/*
1836	* present_arch(arch, map, x, y) searches for any objects with	1834	* present_arch(arch, map, x, y) searches for any objects with
1837	* a matching archetype at the given map and coordinates.	1835	* a matching archetype at the given map and coordinates.
1838	* The first matching object is returned, or NULL if none.	1836	* The first matching object is returned, or NULL if none.
1839	*/	1837	*/
1840		1838
		1839	object *
1841	object *present_arch(const archetype *at, mapstruct *m, int x, int y) {	1840	present_arch (const archetype *at, maptile *m, int x, int y)
		1841	{
1842	object *tmp;	1842	object *
		1843	tmp;
		1844
1843	if(m==NULL || out_of_map(m,x,y)) {	1845	if (m == NULL || out_of_map (m, x, y))
		1846	{
1844	LOG(llevError,"Present_arch called outside map.\n");	1847	LOG (llevError, "Present_arch called outside map.\n");
1845	return NULL;	1848	return NULL;
1846	}	1849	}
1847	for(tmp=GET_MAP_OB(m,x,y); tmp != NULL; tmp = tmp->above)	1850	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)
1848	if(tmp->arch == at)	1851	if (tmp->arch == at)
1849	return tmp;	1852	return tmp;
1850	return NULL;	1853	return NULL;
1851	}	1854	}
1852		1855
1853	/*	1856	/*
1854	* present(type, map, x, y) searches for any objects with	1857	* present(type, map, x, y) searches for any objects with
1855	* a matching type variable at the given map and coordinates.	1858	* a matching type variable at the given map and coordinates.
1856	* The first matching object is returned, or NULL if none.	1859	* The first matching object is returned, or NULL if none.
1857	*/	1860	*/
1858		1861
		1862	object *
1859	object *present(unsigned char type,mapstruct *m, int x,int y) {	1863	present (unsigned char type, maptile *m, int x, int y)
		1864	{
1860	object *tmp;	1865	object *
		1866	tmp;
		1867
1861	if(out_of_map(m,x,y)) {	1868	if (out_of_map (m, x, y))
		1869	{
1862	LOG(llevError,"Present called outside map.\n");	1870	LOG (llevError, "Present called outside map.\n");
1863	return NULL;	1871	return NULL;
1864	}	1872	}
1865	for(tmp=GET_MAP_OB(m,x,y);tmp!=NULL;tmp=tmp->above)	1873	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)
1866	if(tmp->type==type)	1874	if (tmp->type == type)
1867	return tmp;	1875	return tmp;
1868	return NULL;	1876	return NULL;
1869	}	1877	}
1870		1878
1871	/*	1879	/*
1872	* present_in_ob(type, object) searches for any objects with	1880	* present_in_ob(type, object) searches for any objects with
1873	* a matching type variable in the inventory of the given object.	1881	* a matching type variable in the inventory of the given object.
1874	* The first matching object is returned, or NULL if none.	1882	* The first matching object is returned, or NULL if none.
1875	*/	1883	*/
1876		1884
		1885	object *
1877	object *present_in_ob(unsigned char type, const object *op) {	1886	present_in_ob (unsigned char type, const object *op)
		1887	{
1878	object *tmp;	1888	object *
		1889	tmp;
		1890
1879	for(tmp=op->inv;tmp!=NULL;tmp=tmp->below)	1891	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)
1880	if(tmp->type==type)	1892	if (tmp->type == type)
1881	return tmp;	1893	return tmp;
1882	return NULL;	1894	return NULL;
1883	}	1895	}
1884		1896
1885	/*	1897	/*
…		…
1895	* the object name, not the archetype name. this is so that the	1907	* the object name, not the archetype name. this is so that the
1896	* spell code can use one object type (force), but change it's name	1908	* spell code can use one object type (force), but change it's name
1897	* to be unique.	1909	* to be unique.
1898	*/	1910	*/
1899		1911
		1912	object *
1900	object *present_in_ob_by_name(int type, const char *str, const object *op) {	1913	present_in_ob_by_name (int type, const char *str, const object *op)
		1914	{
1901	object *tmp;	1915	object *
		1916	tmp;
1902		1917
1903	for(tmp=op->inv; tmp!=NULL; tmp=tmp->below) {	1918	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)
		1919	{
1904	if ((type==-1 || tmp->type==type) && (!strcmp(str, tmp->name)))	1920	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))
1905	return tmp;	1921	return tmp;
1906	}	1922	}
1907	return NULL;	1923	return NULL;
1908	}	1924	}
1909		1925
1910	/*	1926	/*
1911	* present_arch_in_ob(archetype, object) searches for any objects with	1927	* present_arch_in_ob(archetype, object) searches for any objects with
1912	* a matching archetype in the inventory of the given object.	1928	* a matching archetype in the inventory of the given object.
1913	* The first matching object is returned, or NULL if none.	1929	* The first matching object is returned, or NULL if none.
1914	*/	1930	*/
1915		1931
		1932	object *
1916	object *present_arch_in_ob(const archetype *at, const object *op) {	1933	present_arch_in_ob (const archetype *at, const object *op)
		1934	{
1917	object *tmp;	1935	object *
		1936	tmp;
		1937
1918	for(tmp=op->inv;tmp!=NULL;tmp=tmp->below)	1938	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)
1919	if( tmp->arch == at)	1939	if (tmp->arch == at)
1920	return tmp;	1940	return tmp;
1921	return NULL;	1941	return NULL;
1922	}	1942	}
1923		1943
1924	/*	1944	/*
1925	* activate recursively a flag on an object inventory	1945	* activate recursively a flag on an object inventory
1926	*/	1946	*/
		1947	void
1927	void flag_inv(object*op, int flag){	1948	flag_inv (object *op, int flag)
		1949	{
1928	object *tmp;	1950	object *
		1951	tmp;
		1952
1929	if(op->inv)	1953	if (op->inv)
1930	for(tmp = op->inv; tmp != NULL; tmp = tmp->below){	1954	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)
		1955	{
1931	SET_FLAG(tmp, flag);	1956	SET_FLAG (tmp, flag);
1932	flag_inv(tmp,flag);	1957	flag_inv (tmp, flag);
1933	}	1958	}
1934	}/*	1959	} /*
1935	* desactivate recursively a flag on an object inventory	1960	* desactivate recursively a flag on an object inventory
1936	*/	1961	*/
		1962	void
1937	void unflag_inv(object*op, int flag){	1963	unflag_inv (object *op, int flag)
		1964	{
1938	object *tmp;	1965	object *
		1966	tmp;
		1967
1939	if(op->inv)	1968	if (op->inv)
1940	for(tmp = op->inv; tmp != NULL; tmp = tmp->below){	1969	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)
		1970	{
1941	CLEAR_FLAG(tmp, flag);	1971	CLEAR_FLAG (tmp, flag);
1942	unflag_inv(tmp,flag);	1972	unflag_inv (tmp, flag);
1943	}	1973	}
1944	}	1974	}
1945		1975
1946	/*	1976	/*
1947	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in	1977	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in
1948	* all it's inventory (recursively).	1978	* all it's inventory (recursively).
1949	* If checksums are used, a player will get set_cheat called for	1979	* If checksums are used, a player will get set_cheat called for
1950	* him/her-self and all object carried by a call to this function.	1980	* him/her-self and all object carried by a call to this function.
1951	*/	1981	*/
1952		1982
		1983	void
1953	void set_cheat(object *op) {	1984	set_cheat (object *op)
		1985	{
1954	SET_FLAG(op, FLAG_WAS_WIZ);	1986	SET_FLAG (op, FLAG_WAS_WIZ);
1955	flag_inv(op, FLAG_WAS_WIZ);	1987	flag_inv (op, FLAG_WAS_WIZ);
1956	}	1988	}
1957		1989
1958	/*	1990	/*
1959	* find_free_spot(object, map, x, y, start, stop) will search for	1991	* find_free_spot(object, map, x, y, start, stop) will search for
1960	* a spot at the given map and coordinates which will be able to contain	1992	* a spot at the given map and coordinates which will be able to contain
…		…
1975	* to know if the space in question will block the object. We can't use	2007	* to know if the space in question will block the object. We can't use
1976	* the archetype because that isn't correct if the monster has been	2008	* the archetype because that isn't correct if the monster has been
1977	* customized, changed states, etc.	2009	* customized, changed states, etc.
1978	*/	2010	*/
1979		2011
		2012	int
1980	int find_free_spot(const object *ob, mapstruct *m,int x,int y,int start,int stop) {	2013	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)
		2014	{
		2015	int
		2016	i,
1981	int i,index=0, flag;	2017	index = 0, flag;
		2018	static int
1982	static int altern[SIZEOFFREE];	2019	altern[SIZEOFFREE];
1983		2020
1984	for(i=start;i<stop;i++) {	2021	for (i = start; i < stop; i++)
		2022	{
1985	flag = ob_blocked(ob,m,x+freearr_x[i],y+freearr_y[i]);	2023	flag = ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]);
1986	if(!flag)	2024	if (!flag)
1987	altern[index++]=i;	2025	altern[index++] = i;
1988		2026
1989	/* Basically, if we find a wall on a space, we cut down the search size.	2027	/* Basically, if we find a wall on a space, we cut down the search size.
1990	* In this way, we won't return spaces that are on another side of a wall.	2028	* In this way, we won't return spaces that are on another side of a wall.
1991	* This mostly work, but it cuts down the search size in all directions -	2029	* This mostly work, but it cuts down the search size in all directions -
1992	* if the space being examined only has a wall to the north and empty	2030	* if the space being examined only has a wall to the north and empty
1993	* spaces in all the other directions, this will reduce the search space	2031	* spaces in all the other directions, this will reduce the search space
1994	* to only the spaces immediately surrounding the target area, and	2032	* to only the spaces immediately surrounding the target area, and
1995	* won't look 2 spaces south of the target space.	2033	* won't look 2 spaces south of the target space.
1996	*/	2034	*/
1997	else if ((flag & AB_NO_PASS) && maxfree[i]<stop)	2035	else if ((flag & P_NO_PASS) && maxfree[i] < stop)
1998	stop=maxfree[i];	2036	stop = maxfree[i];
1999	}	2037	}
2000	if(!index) return -1;	2038
		2039	if (!index)
		2040	return -1;
		2041
2001	return altern[RANDOM()%index];	2042	return altern[RANDOM () % index];
2002	}	2043	}
2003		2044
2004	/*	2045	/*
2005	* find_first_free_spot(archetype, mapstruct, x, y) works like	2046	* find_first_free_spot(archetype, maptile, x, y) works like
2006	* find_free_spot(), but it will search max number of squares.	2047	* find_free_spot(), but it will search max number of squares.
2007	* But it will return the first available spot, not a random choice.	2048	* But it will return the first available spot, not a random choice.
2008	* Changed 0.93.2: Have it return -1 if there is no free spot available.	2049	* Changed 0.93.2: Have it return -1 if there is no free spot available.
2009	*/	2050	*/
2010		2051
		2052	int
2011	int find_first_free_spot(const object *ob, mapstruct *m,int x,int y) {	2053	find_first_free_spot (const object *ob, maptile *m, int x, int y)
		2054	{
		2055	int
2012	int i;	2056	i;
		2057
2013	for(i=0;i<SIZEOFFREE;i++) {	2058	for (i = 0; i < SIZEOFFREE; i++)
		2059	{
2014	if(!ob_blocked(ob,m,x+freearr_x[i],y+freearr_y[i]))	2060	if (!ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]))
2015	return i;	2061	return i;
2016	}	2062	}
2017	return -1;	2063	return -1;
2018	}	2064	}
2019		2065
2020	/*	2066	/*
2021	* The function permute(arr, begin, end) randomly reorders the array	2067	* The function permute(arr, begin, end) randomly reorders the array
2022	* arr[begin..end-1].	2068	* arr[begin..end-1].
2023	*/	2069	*/
		2070	static void
2024	static void permute(int *arr, int begin, int end)	2071	permute (int *arr, int begin, int end)
2025	{	2072	{
2026	int i, j, tmp, len;	2073	int
		2074	i,
		2075	j,
		2076	tmp,
		2077	len;
2027		2078
2028	len = end-begin;	2079	len = end - begin;
2029	for(i = begin; i < end; i++)	2080	for (i = begin; i < end; i++)
2030	{	2081	{
2031	j = begin+RANDOM()%len;	2082	j = begin + RANDOM () % len;
2032		2083
2033	tmp = arr[i];	2084	tmp = arr[i];
2034	arr[i] = arr[j];	2085	arr[i] = arr[j];
2035	arr[j] = tmp;	2086	arr[j] = tmp;
2036	}	2087	}
2037	}	2088	}
2038		2089
2039	/* new function to make monster searching more efficient, and effective!	2090	/* new function to make monster searching more efficient, and effective!
2040	* This basically returns a randomized array (in the passed pointer) of	2091	* This basically returns a randomized array (in the passed pointer) of
2041	* the spaces to find monsters. In this way, it won't always look for	2092	* the spaces to find monsters. In this way, it won't always look for
2042	* monsters to the north first. However, the size of the array passed	2093	* monsters to the north first. However, the size of the array passed
2043	* covers all the spaces, so within that size, all the spaces within	2094	* covers all the spaces, so within that size, all the spaces within
2044	* the 3x3 area will be searched, just not in a predictable order.	2095	* the 3x3 area will be searched, just not in a predictable order.
2045	*/	2096	*/
		2097	void
2046	void get_search_arr(int *search_arr)	2098	get_search_arr (int *search_arr)
2047	{	2099	{
		2100	int
2048	int i;	2101	i;
2049		2102
2050	for(i = 0; i < SIZEOFFREE; i++)	2103	for (i = 0; i < SIZEOFFREE; i++)
2051	{	2104	{
2052	search_arr[i] = i;	2105	search_arr[i] = i;
2053	}	2106	}
2054		2107
2055	permute(search_arr, 1, SIZEOFFREE1+1);	2108	permute (search_arr, 1, SIZEOFFREE1 + 1);
2056	permute(search_arr, SIZEOFFREE1+1, SIZEOFFREE2+1);	2109	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);
2057	permute(search_arr, SIZEOFFREE2+1, SIZEOFFREE);	2110	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);
2058	}	2111	}
2059		2112
2060	/*	2113	/*
2061	* find_dir(map, x, y, exclude) will search some close squares in the	2114	* find_dir(map, x, y, exclude) will search some close squares in the
2062	* given map at the given coordinates for live objects.	2115	* given map at the given coordinates for live objects.
…		…
2068	* is actually want is going to try and move there. We need this info	2121	* is actually want is going to try and move there. We need this info
2069	* because we have to know what movement the thing looking to move	2122	* because we have to know what movement the thing looking to move
2070	* there is capable of.	2123	* there is capable of.
2071	*/	2124	*/
2072		2125
		2126	int
2073	int find_dir(mapstruct *m, int x, int y, object *exclude) {	2127	find_dir (maptile *m, int x, int y, object *exclude)
		2128	{
		2129	int
		2130	i,
2074	int i,max=SIZEOFFREE, mflags;	2131	max = SIZEOFFREE, mflags;
		2132
2075	sint16 nx, ny;	2133	sint16 nx, ny;
2076	object *tmp;	2134	object *
2077	mapstruct *mp;	2135	tmp;
		2136	maptile *
		2137	mp;
		2138
2078	MoveType blocked, move_type;	2139	MoveType blocked, move_type;
2079		2140
2080	if (exclude && exclude->head) {	2141	if (exclude && exclude->head)
		2142	{
2081	exclude = exclude->head;	2143	exclude = exclude->head;
2082	move_type = exclude->move_type;	2144	move_type = exclude->move_type;
2083	} else {	2145	}
		2146	else
		2147	{
2084	/* If we don't have anything, presume it can use all movement types. */	2148	/* If we don't have anything, presume it can use all movement types. */
2085	move_type=MOVE_ALL;	2149	move_type = MOVE_ALL;
		2150	}
		2151
		2152	for (i = 1; i < max; i++)
2086	}	2153	{
2087
2088	for(i=1;i<max;i++) {
2089	mp = m;	2154	mp = m;
2090	nx = x + freearr_x[i];	2155	nx = x + freearr_x[i];
2091	ny = y + freearr_y[i];	2156	ny = y + freearr_y[i];
2092		2157
2093	mflags = get_map_flags(m, &mp, nx, ny, &nx, &ny);	2158	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);
		2159
2094	if (mflags & P_OUT_OF_MAP) {	2160	if (mflags & P_OUT_OF_MAP)
		2161	max = maxfree[i];
		2162	else
		2163	{
		2164	blocked = GET_MAP_MOVE_BLOCK (mp, nx, ny);
		2165
		2166	if ((move_type & blocked) == move_type)
2095	max = maxfree[i];	2167	max = maxfree[i];
2096	} else {
2097	blocked = GET_MAP_MOVE_BLOCK(mp, nx, ny);
2098
2099	if ((move_type & blocked) == move_type) {
2100	max=maxfree[i];
2101	} else if (mflags & P_IS_ALIVE) {	2168	else if (mflags & P_IS_ALIVE)
		2169	{
2102	for (tmp=GET_MAP_OB(mp,nx,ny); tmp!= NULL; tmp=tmp->above) {	2170	for (tmp = GET_MAP_OB (mp, nx, ny); tmp; tmp = tmp->above)
2103	if ((QUERY_FLAG(tmp,FLAG_MONSTER) || tmp->type==PLAYER) &&	2171	if ((QUERY_FLAG (tmp, FLAG_MONSTER) || tmp->type == PLAYER) && (tmp != exclude || (tmp->head && tmp->head != exclude)))
2104	(tmp != exclude ||(tmp->head && tmp->head != exclude))) {
2105	break;	2172	break;
2106	}	2173
2107	}
2108	if(tmp) {	2174	if (tmp)
2109	return freedir[i];	2175	return freedir[i];
2110	}
2111	}	2176	}
2112	}	2177	}
2113	}	2178	}
		2179
2114	return 0;	2180	return 0;
2115	}	2181	}
2116		2182
2117	/*	2183	/*
2118	* distance(object 1, object 2) will return the square of the	2184	* distance(object 1, object 2) will return the square of the
2119	* distance between the two given objects.	2185	* distance between the two given objects.
2120	*/	2186	*/
2121		2187
		2188	int
2122	int distance(const object *ob1, const object *ob2) {	2189	distance (const object *ob1, const object *ob2)
		2190	{
2123	int i;	2191	int i;
2124	i= (ob1->x - ob2->x)*(ob1->x - ob2->x)+	2192
2125	(ob1->y - ob2->y)*(ob1->y - ob2->y);	2193	i = (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);
2126	return i;	2194	return i;
2127	}	2195	}
2128		2196
2129	/*	2197	/*
2130	* find_dir_2(delta-x,delta-y) will return a direction in which	2198	* find_dir_2(delta-x,delta-y) will return a direction in which
2131	* an object which has subtracted the x and y coordinates of another	2199	* an object which has subtracted the x and y coordinates of another
2132	* object, needs to travel toward it.	2200	* object, needs to travel toward it.
2133	*/	2201	*/
2134		2202
		2203	int
2135	int find_dir_2(int x, int y) {	2204	find_dir_2 (int x, int y)
		2205	{
2136	int q;	2206	int q;
2137		2207
2138	if(y)	2208	if (y)
2139	q=x*100/y;	2209	q = x * 100 / y;
2140	else if (x)	2210	else if (x)
2141	q= -300*x;	2211	q = -300 * x;
2142	else	2212	else
2143	return 0;	2213	return 0;
2144		2214
2145	if(y>0) {	2215	if (y > 0)
		2216	{
2146	if(q < -242)	2217	if (q < -242)
2147	return 3 ;	2218	return 3;
2148	if (q < -41)	2219	if (q < -41)
2149	return 2 ;	2220	return 2;
2150	if (q < 41)	2221	if (q < 41)
2151	return 1 ;	2222	return 1;
2152	if (q < 242)	2223	if (q < 242)
2153	return 8 ;	2224	return 8;
2154	return 7 ;	2225	return 7;
2155	}	2226	}
2156		2227
2157	if (q < -242)	2228	if (q < -242)
2158	return 7 ;	2229	return 7;
2159	if (q < -41)	2230	if (q < -41)
2160	return 6 ;	2231	return 6;
2161	if (q < 41)	2232	if (q < 41)
2162	return 5 ;	2233	return 5;
2163	if (q < 242)	2234	if (q < 242)
2164	return 4 ;	2235	return 4;
2165		2236
2166	return 3 ;	2237	return 3;
2167	}	2238	}
2168		2239
2169	/*	2240	/*
2170	* absdir(int): Returns a number between 1 and 8, which represent	2241	* absdir(int): Returns a number between 1 and 8, which represent
2171	* the "absolute" direction of a number (it actually takes care of	2242	* the "absolute" direction of a number (it actually takes care of
2172	* "overflow" in previous calculations of a direction).	2243	* "overflow" in previous calculations of a direction).
2173	*/	2244	*/
2174		2245
		2246	int
2175	int absdir(int d) {	2247	absdir (int d)
2176	while(d<1) d+=8;	2248	{
2177	while(d>8) d-=8;	2249	while (d < 1)
		2250	d += 8;
		2251	while (d > 8)
		2252	d -= 8;
2178	return d;	2253	return d;
2179	}	2254	}
2180		2255
2181	/*	2256	/*
2182	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is	2257	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is
2183	* between two directions (which are expected to be absolute (see absdir())	2258	* between two directions (which are expected to be absolute (see absdir())
2184	*/	2259	*/
2185		2260
		2261	int
2186	int dirdiff(int dir1, int dir2) {	2262	dirdiff (int dir1, int dir2)
		2263	{
2187	int d;	2264	int
		2265	d;
		2266
2188	d = abs(dir1 - dir2);	2267	d = abs (dir1 - dir2);
2189	if(d>4)	2268	if (d > 4)
2190	d = 8 - d;	2269	d = 8 - d;
2191	return d;	2270	return d;
2192	}	2271	}
2193		2272
2194	/* peterm:	2273	/* peterm:
…		…
2199	* direction 4, 14, or 16 to get back to where we are.	2278	* direction 4, 14, or 16 to get back to where we are.
2200	* Moved from spell_util.c to object.c with the other related direction	2279	* Moved from spell_util.c to object.c with the other related direction
2201	* functions.	2280	* functions.
2202	*/	2281	*/
2203		2282
		2283	int
2204	int reduction_dir[SIZEOFFREE][3] = {	2284	reduction_dir[SIZEOFFREE][3] = {
2205	{0,0,0}, /* 0 */	2285	{0, 0, 0}, /* 0 */
2206	{0,0,0}, /* 1 */	2286	{0, 0, 0}, /* 1 */
2207	{0,0,0}, /* 2 */	2287	{0, 0, 0}, /* 2 */
2208	{0,0,0}, /* 3 */	2288	{0, 0, 0}, /* 3 */
2209	{0,0,0}, /* 4 */	2289	{0, 0, 0}, /* 4 */
2210	{0,0,0}, /* 5 */	2290	{0, 0, 0}, /* 5 */
2211	{0,0,0}, /* 6 */	2291	{0, 0, 0}, /* 6 */
2212	{0,0,0}, /* 7 */	2292	{0, 0, 0}, /* 7 */
2213	{0,0,0}, /* 8 */	2293	{0, 0, 0}, /* 8 */
2214	{8,1,2}, /* 9 */	2294	{8, 1, 2}, /* 9 */
2215	{1,2,-1}, /* 10 */	2295	{1, 2, -1}, /* 10 */
2216	{2,10,12}, /* 11 */	2296	{2, 10, 12}, /* 11 */
2217	{2,3,-1}, /* 12 */	2297	{2, 3, -1}, /* 12 */
2218	{2,3,4}, /* 13 */	2298	{2, 3, 4}, /* 13 */
2219	{3,4,-1}, /* 14 */	2299	{3, 4, -1}, /* 14 */
2220	{4,14,16}, /* 15 */	2300	{4, 14, 16}, /* 15 */
2221	{5,4,-1}, /* 16 */	2301	{5, 4, -1}, /* 16 */
2222	{4,5,6}, /* 17 */	2302	{4, 5, 6}, /* 17 */
2223	{6,5,-1}, /* 18 */	2303	{6, 5, -1}, /* 18 */
2224	{6,20,18}, /* 19 */	2304	{6, 20, 18}, /* 19 */
2225	{7,6,-1}, /* 20 */	2305	{7, 6, -1}, /* 20 */
2226	{6,7,8}, /* 21 */	2306	{6, 7, 8}, /* 21 */
2227	{7,8,-1}, /* 22 */	2307	{7, 8, -1}, /* 22 */
2228	{8,22,24}, /* 23 */	2308	{8, 22, 24}, /* 23 */
2229	{8,1,-1}, /* 24 */	2309	{8, 1, -1}, /* 24 */
2230	{24,9,10}, /* 25 */	2310	{24, 9, 10}, /* 25 */
2231	{9,10,-1}, /* 26 */	2311	{9, 10, -1}, /* 26 */
2232	{10,11,-1}, /* 27 */	2312	{10, 11, -1}, /* 27 */
2233	{27,11,29}, /* 28 */	2313	{27, 11, 29}, /* 28 */
2234	{11,12,-1}, /* 29 */	2314	{11, 12, -1}, /* 29 */
2235	{12,13,-1}, /* 30 */	2315	{12, 13, -1}, /* 30 */
2236	{12,13,14}, /* 31 */	2316	{12, 13, 14}, /* 31 */
2237	{13,14,-1}, /* 32 */	2317	{13, 14, -1}, /* 32 */
2238	{14,15,-1}, /* 33 */	2318	{14, 15, -1}, /* 33 */
2239	{33,15,35}, /* 34 */	2319	{33, 15, 35}, /* 34 */
2240	{16,15,-1}, /* 35 */	2320	{16, 15, -1}, /* 35 */
2241	{17,16,-1}, /* 36 */	2321	{17, 16, -1}, /* 36 */
2242	{18,17,16}, /* 37 */	2322	{18, 17, 16}, /* 37 */
2243	{18,17,-1}, /* 38 */	2323	{18, 17, -1}, /* 38 */
2244	{18,19,-1}, /* 39 */	2324	{18, 19, -1}, /* 39 */
2245	{41,19,39}, /* 40 */	2325	{41, 19, 39}, /* 40 */
2246	{19,20,-1}, /* 41 */	2326	{19, 20, -1}, /* 41 */
2247	{20,21,-1}, /* 42 */	2327	{20, 21, -1}, /* 42 */
2248	{20,21,22}, /* 43 */	2328	{20, 21, 22}, /* 43 */
2249	{21,22,-1}, /* 44 */	2329	{21, 22, -1}, /* 44 */
2250	{23,22,-1}, /* 45 */	2330	{23, 22, -1}, /* 45 */
2251	{45,47,23}, /* 46 */	2331	{45, 47, 23}, /* 46 */
2252	{23,24,-1}, /* 47 */	2332	{23, 24, -1}, /* 47 */
2253	{24,9,-1}}; /* 48 */	2333	{24, 9, -1}
		2334	}; /* 48 */
2254		2335
2255	/* Recursive routine to step back and see if we can	2336	/* Recursive routine to step back and see if we can
2256	* find a path to that monster that we found. If not,	2337	* find a path to that monster that we found. If not,
2257	* we don't bother going toward it. Returns 1 if we	2338	* we don't bother going toward it. Returns 1 if we
2258	* can see a direct way to get it	2339	* can see a direct way to get it
2259	* Modified to be map tile aware -.MSW	2340	* Modified to be map tile aware -.MSW
2260	*/	2341	*/
2261		2342	int
2262
2263	int can_see_monsterP(mapstruct *m, int x, int y,int dir) {	2343	can_see_monsterP (maptile *m, int x, int y, int dir)
		2344	{
2264	sint16 dx, dy;	2345	sint16 dx, dy;
2265	int mflags;	2346	int mflags;
2266		2347
		2348	if (dir < 0)
2267	if(dir<0) return 0; /* exit condition: invalid direction */	2349	return 0; /* exit condition: invalid direction */
2268		2350
2269	dx = x + freearr_x[dir];	2351	dx = x + freearr_x[dir];
2270	dy = y + freearr_y[dir];	2352	dy = y + freearr_y[dir];
2271		2353
2272	mflags = get_map_flags(m, &m, dx, dy, &dx, &dy);	2354	mflags = get_map_flags (m, &m, dx, dy, &dx, &dy);
2273		2355
2274	/* This functional arguably was incorrect before - it was	2356	/* This functional arguably was incorrect before - it was
2275	* checking for P_WALL - that was basically seeing if	2357	* checking for P_WALL - that was basically seeing if
2276	* we could move to the monster - this is being more	2358	* we could move to the monster - this is being more
2277	* literal on if we can see it. To know if we can actually	2359	* literal on if we can see it. To know if we can actually
2278	* move to the monster, we'd need the monster passed in or	2360	* move to the monster, we'd need the monster passed in or
2279	* at least its move type.	2361	* at least its move type.
2280	*/	2362	*/
2281	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW)) return 0;	2363	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW))
		2364	return 0;
2282		2365
2283	/* yes, can see. */	2366	/* yes, can see. */
2284	if(dir < 9) return 1;	2367	if (dir < 9)
		2368	return 1;
		2369
2285	return can_see_monsterP(m, x, y, reduction_dir[dir][0]) |	2370	return can_see_monsterP (m, x, y, reduction_dir[dir][0])
2286	can_see_monsterP(m,x,y, reduction_dir[dir][1]) |	2371	| can_see_monsterP (m, x, y, reduction_dir[dir][1])
2287	can_see_monsterP(m,x,y, reduction_dir[dir][2]);	2372	| can_see_monsterP (m, x, y, reduction_dir[dir][2]);
2288	}	2373	}
2289		2374
2290
2291
2292	/*	2375	/*
2293	* can_pick(picker, item): finds out if an object is possible to be	2376	* can_pick(picker, item): finds out if an object is possible to be
2294	* picked up by the picker. Returnes 1 if it can be	2377	* picked up by the picker. Returnes 1 if it can be
2295	* picked up, otherwise 0.	2378	* picked up, otherwise 0.
2296	*	2379	*
…		…
2298	* core dumps if they do.	2381	* core dumps if they do.
2299	*	2382	*
2300	* Add a check so we can't pick up invisible objects (0.93.8)	2383	* Add a check so we can't pick up invisible objects (0.93.8)
2301	*/	2384	*/
2302		2385
		2386	int
2303	int can_pick(const object *who, const object *item) {	2387	can_pick (const object *who, const object *item)
		2388	{
2304	return /*QUERY_FLAG(who,FLAG_WIZ)||*/	2389	return /*QUERY_FLAG(who,FLAG_WIZ)|| */
2305	(item->weight>0&&!QUERY_FLAG(item,FLAG_NO_PICK)&&	2390	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&
2306	!QUERY_FLAG(item,FLAG_ALIVE)&&!item->invisible &&	2391	!QUERY_FLAG (item, FLAG_ALIVE) && !item->invisible && (who->type == PLAYER || item->weight < who->weight / 3));
2307	(who->type==PLAYER||item->weight<who->weight/3));
2308	}	2392	}
2309
2310		2393
2311	/*	2394	/*
2312	* create clone from object to another	2395	* create clone from object to another
2313	*/	2396	*/
		2397	object *
2314	object *object_create_clone (object *asrc) {	2398	object_create_clone (object *asrc)
		2399	{
2315	object *dst = NULL,*tmp,*src,*part,*prev, *item;	2400	object *dst = 0, *tmp, *src, *part, *prev, *item;
2316		2401
2317	if(!asrc) return NULL;	2402	if (!asrc)
		2403	return 0;
		2404
2318	src = asrc;	2405	src = asrc;
2319	if(src->head)	2406	if (src->head)
2320	src = src->head;	2407	src = src->head;
2321		2408
2322	prev = NULL;	2409	prev = 0;
2323	for(part = src; part; part = part->more) {	2410	for (part = src; part; part = part->more)
2324	tmp = get_object();	2411	{
2325	copy_object(part,tmp);	2412	tmp = part->clone ();
2326	tmp->x -= src->x;	2413	tmp->x -= src->x;
2327	tmp->y -= src->y;	2414	tmp->y -= src->y;
		2415
2328	if(!part->head) {	2416	if (!part->head)
		2417	{
2329	dst = tmp;	2418	dst = tmp;
2330	tmp->head = NULL;
2331	} else {
2332	tmp->head = dst;	2419	tmp->head = 0;
2333	}	2420	}
		2421	else
		2422	tmp->head = dst;
		2423
2334	tmp->more = NULL;	2424	tmp->more = 0;
		2425
2335	if(prev)	2426	if (prev)
2336	prev->more = tmp;	2427	prev->more = tmp;
		2428
2337	prev = tmp;	2429	prev = tmp;
2338	}	2430	}
2339	/*** copy inventory ***/	2431
2340	for(item = src->inv; item; item = item->below) {	2432	for (item = src->inv; item; item = item->below)
2341	(void) insert_ob_in_ob(object_create_clone(item),dst);	2433	insert_ob_in_ob (object_create_clone (item), dst);
2342	}
2343		2434
2344	return dst;	2435	return dst;
2345	}
2346
2347	/* return true if the object was destroyed, 0 otherwise */
2348	int was_destroyed (const object *op, tag_t old_tag)
2349	{
2350	/* checking for FLAG_FREED isn't necessary, but makes this function more
2351	* robust */
2352	return op->count != old_tag || QUERY_FLAG (op, FLAG_FREED);
2353	}	2436	}
2354		2437
2355	/* GROS - Creates an object using a string representing its content. */	2438	/* GROS - Creates an object using a string representing its content. */
2356	/* Basically, we save the content of the string to a temp file, then call */	2439	/* Basically, we save the content of the string to a temp file, then call */
2357	/* load_object on it. I admit it is a highly inefficient way to make things, */	2440	/* load_object on it. I admit it is a highly inefficient way to make things, */
2358	/* but it was simple to make and allows reusing the load_object function. */	2441	/* but it was simple to make and allows reusing the load_object function. */
2359	/* Remember not to use load_object_str in a time-critical situation. */	2442	/* Remember not to use load_object_str in a time-critical situation. */
2360	/* Also remember that multiparts objects are not supported for now. */	2443	/* Also remember that multiparts objects are not supported for now. */
2361		2444
		2445	object *
2362	object* load_object_str(const char *obstr)	2446	load_object_str (const char *obstr)
2363	{	2447	{
2364	object *op;	2448	object *op;
2365	char filename[MAX_BUF];	2449	char filename[MAX_BUF];
		2450
2366	sprintf(filename,"%s/cfloadobstr2044",settings.tmpdir);	2451	sprintf (filename, "%s/cfloadobstr2044", settings.tmpdir);
2367		2452
2368	FILE *tempfile=fopen(filename,"w");	2453	FILE *tempfile = fopen (filename, "w");
		2454
2369	if (tempfile == NULL)	2455	if (tempfile == NULL)
2370	{	2456	{
2371	LOG(llevError,"Error - Unable to access load object temp file\n");	2457	LOG (llevError, "Error - Unable to access load object temp file\n");
2372	return NULL;	2458	return NULL;
2373	};	2459	}
		2460
2374	fprintf(tempfile,obstr);	2461	fprintf (tempfile, obstr);
2375	fclose(tempfile);	2462	fclose (tempfile);
2376		2463
2377	op=get_object();	2464	op = object::create ();
2378		2465
2379	object_thawer thawer (filename);	2466	object_thawer thawer (filename);
2380		2467
2381	if (thawer)	2468	if (thawer)
2382	load_object(thawer,op,0);	2469	load_object (thawer, op, 0);
2383		2470
2384	LOG(llevDebug," load str completed, object=%s\n", &op->name);	2471	LOG (llevDebug, " load str completed, object=%s\n", &op->name);
2385	CLEAR_FLAG(op,FLAG_REMOVED);	2472	CLEAR_FLAG (op, FLAG_REMOVED);
2386		2473
2387	return op;	2474	return op;
2388	}	2475	}
2389		2476
2390	/* This returns the first object in who's inventory that	2477	/* This returns the first object in who's inventory that
2391	* has the same type and subtype match.	2478	* has the same type and subtype match.
2392	* returns NULL if no match.	2479	* returns NULL if no match.
2393	*/	2480	*/
		2481	object *
2394	object *find_obj_by_type_subtype(const object *who, int type, int subtype)	2482	find_obj_by_type_subtype (const object *who, int type, int subtype)
2395	{	2483	{
2396	object *tmp;	2484	object *tmp;
2397		2485
2398	for (tmp=who->inv; tmp; tmp=tmp->below)	2486	for (tmp = who->inv; tmp; tmp = tmp->below)
2399	if (tmp->type == type && tmp->subtype == subtype) return tmp;	2487	if (tmp->type == type && tmp->subtype == subtype)
		2488	return tmp;
2400		2489
2401	return NULL;	2490	return NULL;
2402	}	2491	}
2403		2492
2404	/* If ob has a field named key, return the link from the list,	2493	/* If ob has a field named key, return the link from the list,
2405	* otherwise return NULL.	2494	* otherwise return NULL.
2406	*	2495	*
2407	* key must be a passed in shared string - otherwise, this won't	2496	* key must be a passed in shared string - otherwise, this won't
2408	* do the desired thing.	2497	* do the desired thing.
2409	*/	2498	*/
		2499	key_value *
2410	key_value * get_ob_key_link(const object * ob, const char * key) {	2500	get_ob_key_link (const object *ob, const char *key)
		2501	{
2411	key_value * link;	2502	key_value *link;
2412		2503
2413	for (link = ob->key_values; link != NULL; link = link->next) {	2504	for (link = ob->key_values; link != NULL; link = link->next)
2414	if (link->key == key) {	2505	if (link->key == key)
2415	return link;	2506	return link;
2416	}	2507
2417	}
2418
2419	return NULL;	2508	return NULL;
2420	}	2509	}
2421		2510
2422	/*	2511	/*
2423	* Returns the value of op has an extra_field for key, or NULL.	2512	* Returns the value of op has an extra_field for key, or NULL.
2424	*	2513	*
2425	* The argument doesn't need to be a shared string.	2514	* The argument doesn't need to be a shared string.
2426	*	2515	*
2427	* The returned string is shared.	2516	* The returned string is shared.
2428	*/	2517	*/
		2518	const char *
2429	const char * get_ob_key_value(const object * op, const char * const key) {	2519	get_ob_key_value (const object *op, const char *const key)
		2520	{
2430	key_value * link;	2521	key_value *link;
2431	const char * canonical_key;	2522	shstr_cmp canonical_key (key);
		2523
		2524	if (!canonical_key)
2432		2525	{
2433	canonical_key = shstr::find (key);
2434
2435	if (canonical_key == NULL) {
2436	/* 1. There being a field named key on any object	2526	/* 1. There being a field named key on any object
2437	* implies there'd be a shared string to find.	2527	* implies there'd be a shared string to find.
2438	* 2. Since there isn't, no object has this field.	2528	* 2. Since there isn't, no object has this field.
2439	* 3. Therefore, *this* object doesn't have this field.	2529	* 3. Therefore, *this* object doesn't have this field.
2440	*/	2530	*/
2441	return NULL;	2531	return 0;
2442	}	2532	}
2443		2533
2444	/* This is copied from get_ob_key_link() above -	2534	/* This is copied from get_ob_key_link() above -
2445	* only 4 lines, and saves the function call overhead.	2535	* only 4 lines, and saves the function call overhead.
2446	*/	2536	*/
2447	for (link = op->key_values; link != NULL; link = link->next) {	2537	for (link = op->key_values; link; link = link->next)
2448	if (link->key == canonical_key) {	2538	if (link->key == canonical_key)
2449	return link->value;	2539	return link->value;
2450	}	2540
2451	}	2541	return 0;
2452	return NULL;
2453	}	2542	}
2454		2543
2455		2544
2456	/*	2545	/*
2457	* Updates the canonical_key in op to value.	2546	* Updates the canonical_key in op to value.
…		…
2461	* Unless add_key is TRUE, it won't add fields, only change the value of existing	2550	* Unless add_key is TRUE, it won't add fields, only change the value of existing
2462	* keys.	2551	* keys.
2463	*	2552	*
2464	* Returns TRUE on success.	2553	* Returns TRUE on success.
2465	*/	2554	*/
		2555	int
2466	int set_ob_key_value_s(object * op, const shstr &canonical_key, const char * value, int add_key) {	2556	set_ob_key_value_s (object *op, const shstr & canonical_key, const char *value, int add_key)
		2557	{
		2558	key_value *
2467	key_value * field = NULL, *last=NULL;	2559	field = NULL, *last = NULL;
2468		2560
2469	for (field=op->key_values; field != NULL; field=field->next) {	2561	for (field = op->key_values; field != NULL; field = field->next)
		2562	{
2470	if (field->key != canonical_key) {	2563	if (field->key != canonical_key)
		2564	{
2471	last = field;	2565	last = field;
2472	continue;	2566	continue;
2473	}	2567	}
2474		2568
2475	if (value)	2569	if (value)
2476	field->value = value;	2570	field->value = value;
2477	else {	2571	else
		2572	{
2478	/* Basically, if the archetype has this key set,	2573	/* Basically, if the archetype has this key set,
2479	* we need to store the null value so when we save	2574	* we need to store the null value so when we save
2480	* it, we save the empty value so that when we load,	2575	* it, we save the empty value so that when we load,
2481	* we get this value back again.	2576	* we get this value back again.
2482	*/	2577	*/
2483	if (get_ob_key_link (&op->arch->clone, canonical_key))	2578	if (get_ob_key_link (&op->arch->clone, canonical_key))
2484	field->value = 0;	2579	field->value = 0;
		2580	else
		2581	{
		2582	if (last)
		2583	last->next = field->next;
2485	else	2584	else
2486	{
2487	if (last) last->next = field->next;
2488	else op->key_values = field->next;	2585	op->key_values = field->next;
2489		2586
2490	delete field;	2587	delete field;
2491	}	2588	}
2492	}	2589	}
2493	return TRUE;	2590	return TRUE;
2494	}	2591	}
2495	/* IF we get here, key doesn't exist */	2592	/* IF we get here, key doesn't exist */
2496		2593
2497	/* No field, we'll have to add it. */	2594	/* No field, we'll have to add it. */
		2595
		2596	if (!add_key)
2498		2597	{
2499	if (!add_key) {
2500	return FALSE;	2598	return FALSE;
2501	}	2599	}
2502	/* There isn't any good reason to store a null	2600	/* There isn't any good reason to store a null
2503	* value in the key/value list. If the archetype has	2601	* value in the key/value list. If the archetype has
2504	* this key, then we should also have it, so shouldn't	2602	* this key, then we should also have it, so shouldn't
2505	* be here. If user wants to store empty strings,	2603	* be here. If user wants to store empty strings,
2506	* should pass in ""	2604	* should pass in ""
2507	*/	2605	*/
2508	if (value == NULL) return TRUE;	2606	if (value == NULL)
2509
2510	field = new key_value;
2511
2512	field->key = canonical_key;
2513	field->value = value;
2514	/* Usual prepend-addition. */
2515	field->next = op->key_values;
2516	op->key_values = field;
2517
2518	return TRUE;	2607	return TRUE;
		2608
		2609	field = new key_value;
		2610
		2611	field->key = canonical_key;
		2612	field->value = value;
		2613	/* Usual prepend-addition. */
		2614	field->next = op->key_values;
		2615	op->key_values = field;
		2616
		2617	return TRUE;
2519	}	2618	}
2520		2619
2521	/*	2620	/*
2522	* Updates the key in op to value.	2621	* Updates the key in op to value.
2523	*	2622	*
…		…
2525	* and not add new ones.	2624	* and not add new ones.
2526	* In general, should be little reason FALSE is ever passed in for add_key	2625	* In general, should be little reason FALSE is ever passed in for add_key
2527	*	2626	*
2528	* Returns TRUE on success.	2627	* Returns TRUE on success.
2529	*/	2628	*/
		2629	int
2530	int set_ob_key_value(object * op, const char *key, const char * value, int add_key)	2630	set_ob_key_value (object *op, const char *key, const char *value, int add_key)
2531	{	2631	{
2532	shstr key_ (key);	2632	shstr key_ (key);
		2633
2533	return set_ob_key_value_s (op, key_, value, add_key);	2634	return set_ob_key_value_s (op, key_, value, add_key);
2534	}	2635	}
		2636
		2637	object::depth_iterator::depth_iterator (object *container)
		2638	: iterator_base (container)
		2639	{
		2640	while (item->inv)
		2641	item = item->inv;
		2642	}
		2643
		2644	void
		2645	object::depth_iterator::next ()
		2646	{
		2647	if (item->below)
		2648	{
		2649	item = item->below;
		2650
		2651	while (item->inv)
		2652	item = item->inv;
		2653	}
		2654	else
		2655	item = item->env;
		2656	}
		2657
		2658	// return a suitable string describing an objetc in enough detail to find it
		2659	const char *
		2660	object::debug_desc (char *info) const
		2661	{
		2662	char info2[256 * 3];
		2663	char *p = info;
		2664
		2665	p += snprintf (p, 256, "%d=\"%s%s%s\"",
		2666	count,
		2667	&name,
		2668	title ? " " : "",
		2669	title ? (const char *)title : "");
		2670
		2671	if (env)
		2672	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));
		2673
		2674	if (map)
		2675	p += snprintf (p, 256, "(on %s@%d+%d)", map->path, x, y);
		2676
		2677	return info;
		2678	}
		2679
		2680	const char *
		2681	object::debug_desc () const
		2682	{
		2683	static char info[256 * 3];
		2684	return debug_desc (info);
		2685	}
		2686

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