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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 1.93 by root, Tue Dec 26 20:04:09 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; 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, 1);
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 (is_freed)
572	if (is_removed) SET_FLAG (op, FLAG_REMOVED);	489	SET_FLAG (dst, FLAG_FREED);
573		490
		491	if (is_removed)
		492	SET_FLAG (dst, FLAG_REMOVED);
		493
574	if (op2->speed < 0)	494	if (speed < 0)
575	op->speed_left = op2->speed_left - RANDOM() % 200 / 100.0;	495	dst->speed_left = speed_left - RANDOM () % 200 / 100.0;
576		496
577	/* Copy over key_values, if any. */	497	/* Copy over key_values, if any. */
578	if (op2->key_values != NULL)	498	if (key_values)
579	{	499	{
580	key_value *tail = NULL;	500	key_value *tail = 0;
581	key_value *i;	501	key_value *i;
582		502
583	op->key_values = NULL;	503	dst->key_values = 0;
584		504
585	for (i = op2->key_values; i != NULL; i = i->next)	505	for (i = key_values; i; i = i->next)
586	{	506	{
587	key_value *new_link = new key_value;	507	key_value *new_link = new key_value;
588		508
589	new_link->next = NULL;	509	new_link->next = 0;
590	new_link->key = i->key;	510	new_link->key = i->key;
591	new_link->value = i->value;	511	new_link->value = i->value;
592		512
593	/* Try and be clever here, too. */	513	/* Try and be clever here, too. */
594	if (op->key_values == NULL)	514	if (!dst->key_values)
595	{	515	{
596	op->key_values = new_link;	516	dst->key_values = new_link;
597	tail = new_link;	517	tail = new_link;
598	}	518	}
599	else	519	else
600	{	520	{
601	tail->next = new_link;	521	tail->next = new_link;
602	tail = new_link;	522	tail = new_link;
603	}	523	}
604	}	524	}
605	}	525	}
606		526
607	update_ob_speed (op);	527	dst->set_speed (dst->speed);
608	}	528	}
609		529
610	/*	530	object *
611	* get_object() grabs an object from the list of unused objects, makes	531	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	{	532	{
618	object *op = new object;	533	object *neu = create ();
619		534	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;	535	return neu;
636	}	536	}
637		537
638	/*	538	/*
639	* If an object with the IS_TURNABLE() flag needs to be turned due	539	* 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	540	* 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.	541	* be called to update the face variable, _and_ how it looks on the map.
642	*/	542	*/
643		543
		544	void
644	void update_turn_face(object *op) {	545	update_turn_face (object *op)
		546	{
645	if(!QUERY_FLAG(op,FLAG_IS_TURNABLE)||op->arch==NULL)	547	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || op->arch == NULL)
646	return;	548	return;
647	SET_ANIMATION(op, op->direction);	549	SET_ANIMATION (op, op->direction);
648	update_object(op,UP_OBJ_FACE);	550	update_object (op, UP_OBJ_FACE);
649	}	551	}
650		552
651	/*	553	/*
652	* Updates the speed of an object. If the speed changes from 0 to another	554	* 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.	555	* 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.	556	* This function needs to be called whenever the speed of an object changes.
655	*/	557	*/
656		558	void
657	void update_ob_speed(object *op) {	559	object::set_speed (float speed)
		560	{
658	extern int arch_init;	561	extern int arch_init;
659		562
660	/* No reason putting the archetypes objects on the speed list,	563	/* No reason putting the archetypes objects on the speed list,
661	* since they never really need to be updated.	564	* since they never really need to be updated.
662	*/	565	*/
663		566	if (flag [FLAG_FREED] && speed)
664	if (QUERY_FLAG(op, FLAG_FREED) && op->speed) {	567	{
665	LOG(llevError,"Object %s is freed but has speed.\n", &op->name);	568	LOG (llevError, "Object %s is freed but has speed.\n", &name);
666	#ifdef MANY_CORES
667	abort();
668	#else
669	op->speed = 0;	569	speed = 0;
670	#endif
671	}	570	}
		571
		572	this->speed = speed;
		573
672	if (arch_init) {	574	if (arch_init)
		575	return;
		576
		577	if (FABS (speed) > MIN_ACTIVE_SPEED)
		578	{
		579	/* If already on active list, don't do anything */
		580	if (active_next || active_prev || this == active_objects)
673	return;	581	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		582
680	/* process_events() expects us to insert the object at the beginning	583	/* process_events() expects us to insert the object at the beginning
681	* of the list. */	584	* of the list. */
682	op->active_next = active_objects;	585	active_next = active_objects;
		586
683	if (op->active_next!=NULL)	587	if (active_next)
684	op->active_next->active_prev = op;	588	active_next->active_prev = this;
		589
685	active_objects = op;	590	active_objects = this;
		591	}
		592	else
686	}	593	{
687	else {
688	/* If not on the active list, nothing needs to be done */	594	/* If not on the active list, nothing needs to be done */
689	if (!op->active_next && !op->active_prev && op!=active_objects)	595	if (!active_next && !active_prev && this != active_objects)
690	return;	596	return;
691		597
692	if (op->active_prev==NULL) {	598	if (!active_prev)
		599	{
693	active_objects = op->active_next;	600	active_objects = active_next;
		601
694	if (op->active_next!=NULL)	602	if (active_next)
695	op->active_next->active_prev = NULL;	603	active_next->active_prev = 0;
696	}	604	}
697	else {	605	else
		606	{
698	op->active_prev->active_next = op->active_next;	607	active_prev->active_next = active_next;
		608
699	if (op->active_next)	609	if (active_next)
700	op->active_next->active_prev = op->active_prev;	610	active_next->active_prev = active_prev;
701	}	611	}
		612
702	op->active_next = NULL;	613	active_next = 0;
703	op->active_prev = NULL;	614	active_prev = 0;
704	}	615	}
705	}	616	}
706		617
707	/* This function removes object 'op' from the list of active	618	/* This function removes object 'op' from the list of active
708	* objects.	619	* objects.
…		…
710	* reference maps where you don't want an object that isn't	621	* reference maps where you don't want an object that isn't
711	* in play chewing up cpu time getting processed.	622	* in play chewing up cpu time getting processed.
712	* The reverse of this is to call update_ob_speed, which	623	* The reverse of this is to call update_ob_speed, which
713	* will do the right thing based on the speed of the object.	624	* will do the right thing based on the speed of the object.
714	*/	625	*/
		626	void
715	void remove_from_active_list(object *op)	627	remove_from_active_list (object *op)
716	{	628	{
717	/* If not on the active list, nothing needs to be done */	629	/* If not on the active list, nothing needs to be done */
718	if (!op->active_next && !op->active_prev && op!=active_objects)	630	if (!op->active_next && !op->active_prev && op != active_objects)
719	return;	631	return;
720		632
721	if (op->active_prev==NULL) {	633	if (op->active_prev == NULL)
		634	{
722	active_objects = op->active_next;	635	active_objects = op->active_next;
723	if (op->active_next!=NULL)	636	if (op->active_next != NULL)
724	op->active_next->active_prev = NULL;	637	op->active_next->active_prev = NULL;
		638	}
		639	else
725	}	640	{
726	else {
727	op->active_prev->active_next = op->active_next;	641	op->active_prev->active_next = op->active_next;
728	if (op->active_next)	642	if (op->active_next)
729	op->active_next->active_prev = op->active_prev;	643	op->active_next->active_prev = op->active_prev;
730	}	644	}
731	op->active_next = NULL;	645	op->active_next = NULL;
732	op->active_prev = NULL;	646	op->active_prev = NULL;
733	}	647	}
734		648
735	/*	649	/*
736	* update_object() updates the array which represents the map.	650	* update_object() updates the the map.
737	* It takes into account invisible objects (and represent squares covered	651	* It takes into account invisible objects (and represent squares covered
738	* by invisible objects by whatever is below them (unless it's another	652	* by invisible objects by whatever is below them (unless it's another
739	* invisible object, etc...)	653	* invisible object, etc...)
740	* If the object being updated is beneath a player, the look-window	654	* 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	655	* of that player is updated (this might be a suboptimal way of
742	* updating that window, though, since update_object() is called _often_)	656	* updating that window, though, since update_object() is called _often_)
743	*	657	*
744	* action is a hint of what the caller believes need to be done.	658	* 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:	659	* current action are:
750	* UP_OBJ_INSERT: op was inserted	660	* UP_OBJ_INSERT: op was inserted
751	* UP_OBJ_REMOVE: op was removed	661	* UP_OBJ_REMOVE: op was removed
752	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update	662	* 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.	663	* as that is easier than trying to look at what may have changed.
754	* UP_OBJ_FACE: only the objects face has changed.	664	* UP_OBJ_FACE: only the objects face has changed.
755	*/	665	*/
756		666	void
757	void update_object(object *op, int action) {	667	update_object (object *op, int action)
758	int update_now=0, flags;	668	{
759	MoveType move_on, move_off, move_block, move_slow;	669	MoveType move_on, move_off, move_block, move_slow;
760		670
761	if (op == NULL) {	671	if (op == NULL)
		672	{
762	/* this should never happen */	673	/* this should never happen */
763	LOG(llevDebug,"update_object() called for NULL object.\n");	674	LOG (llevDebug, "update_object() called for NULL object.\n");
764	return;	675	return;
765	}
766		676	}
767	if(op->env!=NULL) {	677
		678	if (op->env)
		679	{
768	/* Animation is currently handled by client, so nothing	680	/* Animation is currently handled by client, so nothing
769	* to do in this case.	681	* to do in this case.
770	*/	682	*/
771	return;	683	return;
772	}	684	}
773		685
774	/* If the map is saving, don't do anything as everything is	686	/* If the map is saving, don't do anything as everything is
775	* going to get freed anyways.	687	* going to get freed anyways.
776	*/	688	*/
777	if (!op->map || op->map->in_memory == MAP_SAVING) return;	689	if (!op->map || op->map->in_memory == MAP_SAVING)
778		690	return;
		691
779	/* make sure the object is within map boundaries */	692	/* make sure the object is within map boundaries */
780	if (op->x < 0 || op->x >= MAP_WIDTH(op->map) ||	693	if (op->x < 0 || op->x >= op->map->width || op->y < 0 || op->y >= op->map->height)
781	op->y < 0 || op->y >= MAP_HEIGHT(op->map)) {	694	{
782	LOG(llevError,"update_object() called for object out of map!\n");	695	LOG (llevError, "update_object() called for object out of map!\n");
783	#ifdef MANY_CORES	696	#ifdef MANY_CORES
784	abort();	697	abort ();
785	#endif	698	#endif
786	return;	699	return;
787	}
788		700	}
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		701
		702	mapspace &m = op->ms ();
		703
		704	if (m.flags_ & P_NEED_UPDATE)
		705	/* nop */;
796	if (action == UP_OBJ_INSERT) {	706	else if (action == UP_OBJ_INSERT)
		707	{
		708	// this is likely overkill, TODO: revisit (schmorp)
797	if (QUERY_FLAG(op, FLAG_BLOCKSVIEW) && !(flags & P_BLOCKSVIEW))	709	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))	710	|| (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(m.flags_ & P_NO_MAGIC))
801	update_now=1;	711	|| (op->type == PLAYER && !(m.flags_ & P_PLAYER))
802		712	|| (op->type == SAFE_GROUND && !(m.flags_ & P_SAFE))
		713	|| (QUERY_FLAG (op, FLAG_ALIVE) && !(m.flags_ & P_IS_ALIVE))
803	if (QUERY_FLAG(op, FLAG_DAMNED) && !(flags & P_NO_CLERIC))	714	|| (QUERY_FLAG (op, FLAG_DAMNED) && !(m.flags_ & P_NO_CLERIC))
804	update_now=1;	715	|| (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;	716	|| (m.move_off | op->move_off ) != m.move_off
		717	|| (m.move_slow | op->move_slow) != m.move_slow
811	/* This isn't perfect, but I don't expect a lot of objects to	718	/* This isn't perfect, but I don't expect a lot of objects to
812	* to have move_allow right now.	719	* to have move_allow right now.
813	*/	720	*/
814	if (((move_block | op->move_block) & ~op->move_allow) != move_block)	721	|| ((m.move_block | op->move_block) & ~op->move_allow) != m.move_block
815	update_now=1;	722	|| 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;	723	m.flags_ = P_NEED_UPDATE;
817	}	724	}
818	/* if the object is being removed, we can't make intelligent	725	/* if the object is being removed, we can't make intelligent
819	* decisions, because remove_ob can't really pass the object	726	* decisions, because remove_ob can't really pass the object
820	* that is being removed.	727	* that is being removed.
821	*/	728	*/
822	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE) {	729	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)
823	update_now=1;	730	m.flags_ = P_NEED_UPDATE;
824	} else if (action == UP_OBJ_FACE) {	731	else if (action == UP_OBJ_FACE)
825	/* Nothing to do for that case */	732	/* Nothing to do for that case */ ;
826	}
827	else {	733	else
828	LOG(llevError,"update_object called with invalid action: %d\n", action);	734	LOG (llevError, "update_object called with invalid action: %d\n", action);
829	}
830		735
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)	736	if (op->more)
837	update_object(op->more, action);	737	update_object (op->more, action);
838	}	738	}
839		739
		740	object::vector object::objects; // not yet used
		741	object *object::first;
840		742
		743	object::object ()
		744	{
		745	SET_FLAG (this, FLAG_REMOVED);
		746
		747	expmul = 1.0;
		748	face = blank_face;
		749	}
		750
		751	object::~object ()
		752	{
		753	free_key_values (this);
		754	}
		755
		756	void object::link ()
		757	{
		758	count = ++ob_count;
		759	uuid = gen_uuid ();
		760
		761	prev = 0;
		762	next = object::first;
		763
		764	if (object::first)
		765	object::first->prev = this;
		766
		767	object::first = this;
		768	}
		769
		770	void object::unlink ()
		771	{
		772	if (this == object::first)
		773	object::first = next;
		774
		775	/* Remove this object from the list of used objects */
		776	if (prev) prev->next = next;
		777	if (next) next->prev = prev;
		778
		779	prev = 0;
		780	next = 0;
		781	}
		782
841	/*	783	/*
842	* free_object() frees everything allocated by an object, removes	784	* Remove and free all objects in the inventory of the given object.
843	* it from the list of used objects, and puts it on the list of	785	* object.c ?
844	* free objects. The IS_FREED() flag is set in the object.
845	* The object must have been removed by remove_ob() first for
846	* this function to succeed.
847	*	786	*/
848	* If free_inventory is set, free inventory as well. Else drop items in
849	* inventory to the ground.
850	*/
851
852	void	787	void
853	free_object (object * ob)	788	object::destroy_inv (bool drop_to_ground)
854	{	789	{
855	free_object2 (ob, 0);	790	/* Only if the space blocks everything do we not process -
		791	* if some form of movement is allowed, let objects
		792	* drop on that space.
		793	*/
		794	if (!drop_to_ground
		795	|| !map
		796	|| map->in_memory != MAP_IN_MEMORY
		797	|| map->at (x, y).move_block == MOVE_ALL)
		798	{
		799	while (inv)
		800	{
		801	inv->destroy_inv (drop_to_ground);
		802	inv->destroy ();
		803	}
		804	}
		805	else
		806	{ /* Put objects in inventory onto this space */
		807	while (inv)
		808	{
		809	object *op = inv;
		810
		811	if (op->flag [FLAG_STARTEQUIP]
		812	|| op->flag [FLAG_NO_DROP]
		813	|| op->type == RUNE
		814	|| op->type == TRAP
		815	|| op->flag [FLAG_IS_A_TEMPLATE])
		816	op->destroy ();
		817	else
		818	map->insert (op, x, y);
		819	}
		820	}
		821	}
		822
		823	object *object::create ()
		824	{
		825	object *op = new object;
		826	op->link ();
		827	return op;
856	}	828	}
857		829
858	void	830	void
859	free_object2 (object * ob, int free_inventory)	831	object::do_destroy ()
860	{	832	{
861	object *tmp, *op;	833	if (flag [FLAG_IS_LINKED])
		834	remove_button_link (this);
862		835
863	if (!QUERY_FLAG (ob, FLAG_REMOVED))	836	if (flag [FLAG_FRIENDLY])
864	{
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
872	if (QUERY_FLAG (ob, FLAG_FRIENDLY))
873	{
874	LOG (llevMonster, "Warning: tried to free friendly object.\n");
875	remove_friendly_object (ob);	837	remove_friendly_object (this);
876	}
877		838
878	if (QUERY_FLAG (ob, FLAG_FREED))	839	if (!flag [FLAG_REMOVED])
879	{	840	remove ();
880	dump_object (ob);	841
881	LOG (llevError, "Trying to free freed object.\n%s\n", errmsg);	842	if (flag [FLAG_FREED])
882	return;	843	return;
883	}
884		844
885	if (ob->more != NULL)	845	set_speed (0);
		846
		847	flag [FLAG_FREED] = 1;
		848
		849	attachable::do_destroy ();
		850
		851	destroy_inv (true);
		852	unlink ();
		853
		854	// hack to ensure that freed objects still have a valid map
		855	{
		856	static maptile *freed_map; // freed objects are moved here to avoid crashes
		857
		858	if (!freed_map)
886	{	859	{
887	free_object2 (ob->more, free_inventory);	860	freed_map = new maptile;
888	ob->more = NULL;	861
		862	freed_map->name = "/internal/freed_objects_map";
		863	freed_map->width = 3;
		864	freed_map->height = 3;
		865
		866	freed_map->allocate ();
889	}	867	}
890		868
891	if (ob->inv)	869	map = freed_map;
892	{	870	x = 1;
893	/* Only if the space blocks everything do we not process -	871	y = 1;
894	* if some form of movemnt is allowed, let objects	872	}
895	* drop on that space.
896	*/
897	if (free_inventory || ob->map == NULL
898	|| ob->map->in_memory != MAP_IN_MEMORY
899	|| (GET_MAP_MOVE_BLOCK (ob->map, ob->x, ob->y) == MOVE_ALL))
900	{
901	op = ob->inv;
902		873
903	while (op != NULL)	874	head = 0;
		875
		876	if (more)
904	{	877	{
905	tmp = op->below;	878	more->destroy ();
906	remove_ob (op);	879	more = 0;
907	free_object2 (op, free_inventory);
908	op = tmp;
909	}	880	}
910	}
911	else
912	{ /* Put objects in inventory onto this space */
913	op = ob->inv;
914		881
915	while (op != NULL)	882	// clear those pointers that likely might have circular references to us
916	{	883	owner = 0;
917	tmp = op->below;	884	enemy = 0;
918	remove_ob (op);	885	attacked_by = 0;
919		886
920	if (QUERY_FLAG (op, FLAG_STARTEQUIP)	887	// only relevant for players(?), but make sure of it anyways
921	|| QUERY_FLAG (op, FLAG_NO_DROP) || op->type == RUNE	888	contr = 0;
922	|| op->type == TRAP || QUERY_FLAG (op, FLAG_IS_A_TEMPLATE))	889	}
923	free_object (op);
924	else
925	{
926	op->x = ob->x;
927	op->y = ob->y;
928	insert_ob_in_map (op, ob->map, NULL, 0); /* Insert in same map as the envir */
929	}
930		890
931	op = tmp;	891	void
932	}	892	object::destroy (bool destroy_inventory)
933	}	893	{
934	}	894	if (destroyed ())
		895	return;
935		896
936	/* Remove object from the active list */	897	if (destroy_inventory)
937	ob->speed = 0;	898	destroy_inv (false);
938	update_ob_speed (ob);
939		899
940	SET_FLAG (ob, FLAG_FREED);	900	attachable::destroy ();
941	ob->count = 0;
942
943	/* Remove this object from the list of used objects */
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	}	901	}
967		902
968	/*	903	/*
969	* sub_weight() recursively (outwards) subtracts a number from the	904	* sub_weight() recursively (outwards) subtracts a number from the
970	* weight of an object (and what is carried by it's environment(s)).	905	* weight of an object (and what is carried by it's environment(s)).
971	*/	906	*/
972		907	void
973	void sub_weight (object *op, signed long weight) {	908	sub_weight (object *op, signed long weight)
		909	{
974	while (op != NULL) {	910	while (op != NULL)
		911	{
975	if (op->type == CONTAINER) {	912	if (op->type == CONTAINER)
976	weight=(signed long)(weight*(100-op->stats.Str)/100);	913	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
977	}	914
978	op->carrying-=weight;	915	op->carrying -= weight;
979	op = op->env;	916	op = op->env;
980	}	917	}
981	}	918	}
982		919
983	/* remove_ob(op):	920	/* op->remove ():
984	* This function removes the object op from the linked list of objects	921	* 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	922	* which it is currently tied to. When this function is done, the
986	* object will have no environment. If the object previously had an	923	* object will have no environment. If the object previously had an
987	* environment, the x and y coordinates will be updated to	924	* environment, the x and y coordinates will be updated to
988	* the previous environment.	925	* the previous environment.
989	* Beware: This function is called from the editor as well!	926	* Beware: This function is called from the editor as well!
990	*/	927	*/
991		928	void
992	void remove_ob(object *op) {	929	object::remove ()
		930	{
993	object *tmp,*last=NULL;	931	object *tmp, *last = 0;
994	object *otmp;	932	object *otmp;
995	tag_t tag;
996	int check_walk_off;
997	mapstruct *m;
998	sint16 x,y;
999
1000		933
1001	if(QUERY_FLAG(op,FLAG_REMOVED)) {	934	if (QUERY_FLAG (this, FLAG_REMOVED))
1002	dump_object(op);	935	return;
1003	LOG(llevError,"Trying to remove removed object.\n%s\n",errmsg);
1004		936
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);	937	SET_FLAG (this, FLAG_REMOVED);
		938	INVOKE_OBJECT (REMOVE, this);
1021		939
		940	if (more)
		941	more->remove ();
		942
1022	/*	943	/*
1023	* In this case, the object to be removed is in someones	944	* In this case, the object to be removed is in someones
1024	* inventory.	945	* inventory.
1025	*/	946	*/
1026	if(op->env!=NULL) {	947	if (env)
		948	{
1027	if(op->nrof)	949	if (nrof)
1028	sub_weight(op->env, op->weight*op->nrof);	950	sub_weight (env, weight * nrof);
1029	else	951	else
1030	sub_weight(op->env, op->weight+op->carrying);	952	sub_weight (env, weight + carrying);
1031		953
1032	/* NO_FIX_PLAYER is set when a great many changes are being	954	/* NO_FIX_PLAYER is set when a great many changes are being
1033	* made to players inventory. If set, avoiding the call	955	* made to players inventory. If set, avoiding the call
1034	* to save cpu time.	956	* to save cpu time.
1035	*/	957	*/
1036	if ((otmp=is_player_inv(op->env))!=NULL && otmp->contr &&	958	if ((otmp = in_player ()) && otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1037	!QUERY_FLAG(otmp,FLAG_NO_FIX_PLAYER))	959	otmp->update_stats ();
1038	fix_player(otmp);
1039		960
1040	if(op->above!=NULL)	961	if (above != NULL)
1041	op->above->below=op->below;	962	above->below = below;
1042	else	963	else
1043	op->env->inv=op->below;	964	env->inv = below;
1044		965
1045	if(op->below!=NULL)	966	if (below != NULL)
1046	op->below->above=op->above;	967	below->above = above;
1047		968
1048	/* we set up values so that it could be inserted into	969	/* we set up values so that it could be inserted into
1049	* the map, but we don't actually do that - it is up	970	* the map, but we don't actually do that - it is up
1050	* to the caller to decide what we want to do.	971	* to the caller to decide what we want to do.
		972	*/
		973	x = env->x, y = env->y;
		974	map = env->map;
		975	above = 0, below = 0;
		976	env = 0;
		977	}
		978	else if (map)
		979	{
		980	/* Re did the following section of code - it looks like it had
		981	* lots of logic for things we no longer care about
		982	*/
		983
		984	/* link the object above us */
		985	if (above)
		986	above->below = below;
		987	else
		988	map->at (x, y).top = below; /* we were top, set new top */
		989
		990	/* Relink the object below us, if there is one */
		991	if (below)
		992	below->above = above;
		993	else
		994	{
		995	/* Nothing below, which means we need to relink map object for this space
		996	* use translated coordinates in case some oddness with map tiling is
		997	* evident
1051	*/	998	*/
1052	op->x=op->env->x,op->y=op->env->y;	999	if (GET_MAP_OB (map, x, y) != this)
1053	op->map=op->env->map;	1000	{
1054	op->above=NULL,op->below=NULL;	1001	char *dump = dump_object (this);
1055	op->env=NULL;	1002	LOG (llevError,
		1003	"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);
		1004	free (dump);
		1005	dump = dump_object (GET_MAP_OB (map, x, y));
		1006	LOG (llevError, "%s\n", dump);
		1007	free (dump);
		1008	}
		1009
		1010	map->at (x, y).bot = above; /* goes on above it. */
		1011	}
		1012
		1013	above = 0;
		1014	below = 0;
		1015
		1016	if (map->in_memory == MAP_SAVING)
1056	return;	1017	return;
1057	}
1058		1018
1059	/* If we get here, we are removing it from a map */	1019	int check_walk_off = !flag [FLAG_NO_APPLY];
1060	if (op->map == NULL) return;
1061		1020
1062	x = op->x;	1021	for (tmp = map->at (x, y).bot; tmp; tmp = tmp->above)
1063	y = op->y;	1022	{
1064	m = get_map_from_coord(op->map, &x, &y);	1023	/* No point updating the players look faces if he is the object
1065		1024	* 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	*/	1025	*/
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		1026
1080	/* Re did the following section of code - it looks like it had	1027	if (tmp->type == PLAYER && tmp != this)
1081	* lots of logic for things we no longer care about	1028	{
1082	*/	1029	/* If a container that the player is currently using somehow gets
1083		1030	* removed (most likely destroyed), update the player view
1084	/* link the object above us */	1031	* 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	*/	1032	*/
1098	if(GET_MAP_OB(m,x,y)!=op) {	1033	if (tmp->container == this)
1099	dump_object(op);	1034	{
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);	1035	flag [FLAG_APPLIED] = 0;
1101	dump_object(GET_MAP_OB(m,x,y));	1036	tmp->container = 0;
1102	LOG(llevError,"%s\n",errmsg);	1037	}
		1038
		1039	if (tmp->contr->ns)
		1040	tmp->contr->ns->floorbox_update ();
		1041	}
		1042
		1043	/* See if player moving off should effect something */
		1044	if (check_walk_off
		1045	&& ((move_type & tmp->move_off)
		1046	&& (move_type & ~tmp->move_off & ~tmp->move_block) == 0))
		1047	{
		1048	move_apply (tmp, this, 0);
		1049
		1050	if (destroyed ())
		1051	LOG (llevError, "BUG: remove_ob(): name %s, destroyed leaving object\n", tmp->debug_desc ());
		1052	}
		1053
		1054	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */
		1055
		1056	if (tmp->above == tmp)
		1057	tmp->above = 0;
		1058
		1059	last = tmp;
1103	}	1060	}
1104	SET_MAP_OB(m,x,y,op->above); /* goes on above it. */
1105	}
1106	op->above=NULL;
1107	op->below=NULL;
1108		1061
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 */	1062	/* last == NULL of there are no objects on this space */
1148	if (last==NULL) {	1063	if (!last)
1149	/* set P_NEED_UPDATE, otherwise update_position will complain. In theory,	1064	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	1065	else
1158	update_object(last, UP_OBJ_REMOVE);	1066	update_object (last, UP_OBJ_REMOVE);
1159		1067
1160	if(QUERY_FLAG(op,FLAG_BLOCKSVIEW)|| (op->glow_radius != 0))	1068	if (flag [FLAG_BLOCKSVIEW] || glow_radius)
1161	update_all_los(op->map, op->x, op->y);	1069	update_all_los (map, x, y);
1162		1070	}
1163	}	1071	}
1164		1072
1165	/*	1073	/*
1166	* merge_ob(op,top):	1074	* merge_ob(op,top):
1167	*	1075	*
1168	* This function goes through all objects below and including top, and	1076	* This function goes through all objects below and including top, and
1169	* merges op to the first matching object.	1077	* merges op to the first matching object.
1170	* If top is NULL, it is calculated.	1078	* If top is NULL, it is calculated.
1171	* Returns pointer to object if it succeded in the merge, otherwise NULL	1079	* Returns pointer to object if it succeded in the merge, otherwise NULL
1172	*/	1080	*/
1173		1081	object *
1174	object *merge_ob(object *op, object *top) {	1082	merge_ob (object *op, object *top)
		1083	{
1175	if(!op->nrof)	1084	if (!op->nrof)
1176	return 0;	1085	return 0;
1177	if(top==NULL)	1086
		1087	if (top)
1178	for(top=op;top!=NULL&&top->above!=NULL;top=top->above);	1088	for (top = op; top && top->above; top = top->above)
		1089	;
		1090
1179	for(;top!=NULL;top=top->below) {	1091	for (; top; top = top->below)
		1092	{
1180	if(top==op)	1093	if (top == op)
1181	continue;	1094	continue;
1182	if (CAN_MERGE(op,top))	1095
1183	{	1096	if (object::can_merge (op, top))
		1097	{
1184	top->nrof+=op->nrof;	1098	top->nrof += op->nrof;
		1099
1185	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/	1100	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/
1186	op->weight = 0; /* Don't want any adjustements now */	1101	op->weight = 0; /* Don't want any adjustements now */
1187	remove_ob(op);	1102	op->destroy ();
1188	free_object(op);
1189	return top;	1103	return top;
1190	}	1104	}
1191	}	1105	}
		1106
1192	return NULL;	1107	return 0;
1193	}	1108	}
1194		1109
1195	/*	1110	/*
1196	* same as insert_ob_in_map except it handle separate coordinates and do a clean	1111	* same as insert_ob_in_map except it handle separate coordinates and do a clean
1197	* job preparing multi-part monsters	1112	* job preparing multi-part monsters
1198	*/	1113	*/
		1114	object *
1199	object *insert_ob_in_map_at(object *op, mapstruct *m, object *originator, int flag, int x, int y){	1115	insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)
1200	object* tmp;	1116	{
1201	if (op->head)	1117	for (object *tmp = op->head_ (); tmp; tmp = tmp->more)
1202	op=op->head;	1118	{
1203	for (tmp=op;tmp;tmp=tmp->more){
1204	tmp->x=x+tmp->arch->clone.x;	1119	tmp->x = x + tmp->arch->clone.x;
1205	tmp->y=y+tmp->arch->clone.y;	1120	tmp->y = y + tmp->arch->clone.y;
1206	}	1121	}
		1122
1207	return insert_ob_in_map (op, m, originator, flag);	1123	return insert_ob_in_map (op, m, originator, flag);
1208	}	1124	}
1209		1125
1210	/*	1126	/*
1211	* insert_ob_in_map (op, map, originator, flag):	1127	* insert_ob_in_map (op, map, originator, flag):
1212	* This function inserts the object in the two-way linked list	1128	* This function inserts the object in the two-way linked list
…		…
1225	* Return value:	1141	* Return value:
1226	* new object if 'op' was merged with other object	1142	* new object if 'op' was merged with other object
1227	* NULL if 'op' was destroyed	1143	* NULL if 'op' was destroyed
1228	* just 'op' otherwise	1144	* just 'op' otherwise
1229	*/	1145	*/
1230		1146	object *
1231	object *insert_ob_in_map (object *op, mapstruct *m, object *originator, int flag)	1147	insert_ob_in_map (object *op, maptile *m, object *originator, int flag)
1232	{	1148	{
1233	object *tmp, *top, *floor=NULL;	1149	object *tmp, *top, *floor = NULL;
1234	sint16 x,y;	1150	sint16 x, y;
1235		1151
1236	if (QUERY_FLAG (op, FLAG_FREED)) {	1152	if (QUERY_FLAG (op, FLAG_FREED))
		1153	{
1237	LOG (llevError, "Trying to insert freed object!\n");	1154	LOG (llevError, "Trying to insert freed object!\n");
1238	return NULL;	1155	return NULL;
		1156	}
		1157
		1158	if (m == NULL)
1239	}	1159	{
1240	if(m==NULL) {
1241	dump_object(op);	1160	char *dump = dump_object (op);
1242	LOG(llevError,"Trying to insert in null-map!\n%s\n",errmsg);	1161	LOG (llevError, "Trying to insert in null-map!\n%s\n", dump);
		1162	free (dump);
1243	return op;	1163	return op;
1244	}	1164	}
		1165
1245	if(out_of_map(m,op->x,op->y)) {	1166	if (out_of_map (m, op->x, op->y))
		1167	{
1246	dump_object(op);	1168	char *dump = dump_object (op);
1247	LOG(llevError,"Trying to insert object outside the map.\n%s\n", errmsg);	1169	LOG (llevError, "Trying to insert object outside the map.\n%s\n", dump);
1248	#ifdef MANY_CORES	1170	#ifdef MANY_CORES
1249	/* Better to catch this here, as otherwise the next use of this object	1171	/* 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	1172	* is likely to cause a crash. Better to find out where it is getting
1251	* improperly inserted.	1173	* improperly inserted.
1252	*/	1174	*/
1253	abort();	1175	abort ();
1254	#endif	1176	#endif
		1177	free (dump);
1255	return op;	1178	return op;
1256	}	1179	}
		1180
1257	if(!QUERY_FLAG(op,FLAG_REMOVED)) {	1181	if (!QUERY_FLAG (op, FLAG_REMOVED))
		1182	{
1258	dump_object(op);	1183	char *dump = dump_object (op);
1259	LOG(llevError,"Trying to insert (map) inserted object.\n%s\n", errmsg);	1184	LOG (llevError, "Trying to insert (map) inserted object.\n%s\n", dump);
		1185	free (dump);
1260	return op;	1186	return op;
		1187	}
		1188
		1189	if (op->more)
1261	}	1190	{
1262	if(op->more!=NULL) {
1263	/* The part may be on a different map. */	1191	/* The part may be on a different map. */
1264		1192
1265	object *more = op->more;	1193	object *more = op->more;
1266		1194
1267	/* We really need the caller to normalize coordinates - if	1195	/* We really need the caller to normalize coordinates - if
1268	* we set the map, that doesn't work if the location is within	1196	* 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	1197	* a map and this is straddling an edge. So only if coordinate
1270	* is clear wrong do we normalize it.	1198	* is clear wrong do we normalize it.
1271	*/	1199	*/
1272	if (OUT_OF_REAL_MAP(more->map, more->x, more->y)) {	1200	if (OUT_OF_REAL_MAP (more->map, more->x, more->y))
1273	more->map = get_map_from_coord(m, &more->x, &more->y);	1201	more->map = get_map_from_coord (m, &more->x, &more->y);
1274	} else if (!more->map) {	1202	else if (!more->map)
		1203	{
1275	/* For backwards compatibility - when not dealing with tiled maps,	1204	/* For backwards compatibility - when not dealing with tiled maps,
1276	* more->map should always point to the parent.	1205	* more->map should always point to the parent.
1277	*/	1206	*/
1278	more->map = m;	1207	more->map = m;
1279	}	1208	}
1280		1209
1281	if (insert_ob_in_map(more, more->map, originator, flag) == NULL) {	1210	if (insert_ob_in_map (more, more->map, originator, flag) == NULL)
		1211	{
1282	if ( ! op->head)	1212	if (!op->head)
1283	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");	1213	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");
		1214
1284	return NULL;	1215	return 0;
1285	}	1216	}
1286	}	1217	}
		1218
1287	CLEAR_FLAG(op,FLAG_REMOVED);	1219	CLEAR_FLAG (op, FLAG_REMOVED);
1288		1220
1289	/* Ideally, the caller figures this out. However, it complicates a lot	1221	/* 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	1222	* of areas of callers (eg, anything that uses find_free_spot would now
1291	* need extra work	1223	* need extra work
1292	*/	1224	*/
1293	op->map=get_map_from_coord(m, &op->x, &op->y);	1225	op->map = get_map_from_coord (m, &op->x, &op->y);
1294	x = op->x;	1226	x = op->x;
1295	y = op->y;	1227	y = op->y;
1296		1228
1297	/* this has to be done after we translate the coordinates.	1229	/* this has to be done after we translate the coordinates.
1298	*/	1230	*/
1299	if(op->nrof && !(flag & INS_NO_MERGE)) {	1231	if (op->nrof && !(flag & INS_NO_MERGE))
1300	for(tmp=GET_MAP_OB(op->map,x,y);tmp!=NULL;tmp=tmp->above)	1232	for (tmp = GET_MAP_OB (op->map, x, y); tmp != NULL; tmp = tmp->above)
1301	if (CAN_MERGE(op,tmp)) {	1233	if (object::can_merge (op, tmp))
		1234	{
1302	op->nrof+=tmp->nrof;	1235	op->nrof += tmp->nrof;
1303	remove_ob(tmp);	1236	tmp->destroy ();
1304	free_object(tmp);	1237	}
		1238
		1239	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */
		1240	CLEAR_FLAG (op, FLAG_INV_LOCKED);
		1241
		1242	if (!QUERY_FLAG (op, FLAG_ALIVE))
		1243	CLEAR_FLAG (op, FLAG_NO_STEAL);
		1244
		1245	if (flag & INS_BELOW_ORIGINATOR)
		1246	{
		1247	if (originator->map != op->map || originator->x != op->x || originator->y != op->y)
		1248	{
		1249	LOG (llevError, "insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");
		1250	abort ();
		1251	}
		1252
		1253	op->above = originator;
		1254	op->below = originator->below;
		1255
		1256	if (op->below)
		1257	op->below->above = op;
		1258	else
		1259	op->ms ().bot = op;
		1260
		1261	/* since *below* originator, no need to update top */
		1262	originator->below = op;
		1263	}
		1264	else
		1265	{
		1266	/* If there are other objects, then */
		1267	if ((!(flag & INS_MAP_LOAD)) && ((top = GET_MAP_OB (op->map, op->x, op->y)) != NULL))
		1268	{
		1269	object *last = NULL;
		1270
		1271	/*
		1272	* If there are multiple objects on this space, we do some trickier handling.
		1273	* We've already dealt with merging if appropriate.
		1274	* Generally, we want to put the new object on top. But if
		1275	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last
		1276	* floor, we want to insert above that and no further.
		1277	* Also, if there are spell objects on this space, we stop processing
		1278	* once we get to them. This reduces the need to traverse over all of
		1279	* them when adding another one - this saves quite a bit of cpu time
		1280	* when lots of spells are cast in one area. Currently, it is presumed
		1281	* that flying non pickable objects are spell objects.
		1282	*/
		1283
		1284	while (top != NULL)
		1285	{
		1286	if (QUERY_FLAG (top, FLAG_IS_FLOOR) || QUERY_FLAG (top, FLAG_OVERLAY_FLOOR))
		1287	floor = top;
		1288
		1289	if (QUERY_FLAG (top, FLAG_NO_PICK) && (top->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (top, FLAG_IS_FLOOR))
		1290	{
		1291	/* We insert above top, so we want this object below this */
		1292	top = top->below;
		1293	break;
		1294	}
		1295
		1296	last = top;
		1297	top = top->above;
1305	}	1298	}
1306	}
1307		1299
1308	CLEAR_FLAG(op,FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */	1300	/* Don't want top to be NULL, so set it to the last valid object */
1309	CLEAR_FLAG(op, FLAG_INV_LOCKED);	1301	top = last;
1310	if (!QUERY_FLAG(op, FLAG_ALIVE))
1311	CLEAR_FLAG(op, FLAG_NO_STEAL);
1312		1302
1313	if (flag & INS_BELOW_ORIGINATOR) {	1303	/* We let update_position deal with figuring out what the space
1314	if (originator->map != op->map || originator->x != op->x ||	1304	* looks like instead of lots of conditions here.
1315	originator->y != op->y) {	1305	* makes things faster, and effectively the same result.
1316	LOG(llevError,"insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");	1306	*/
1317	abort();	1307
		1308	/* Have object 'fall below' other objects that block view.
		1309	* Unless those objects are exits, type 66
		1310	* If INS_ON_TOP is used, don't do this processing
		1311	* Need to find the object that in fact blocks view, otherwise
		1312	* stacking is a bit odd.
		1313	*/
		1314	if (!(flag & INS_ON_TOP) &&
		1315	(get_map_flags (op->map, 0, op->x, op->y, 0, 0) & P_BLOCKSVIEW) && (op->face && !op->face->visibility))
		1316	{
		1317	for (last = top; last != floor; last = last->below)
		1318	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))
		1319	break;
		1320	/* Check to see if we found the object that blocks view,
		1321	* and make sure we have a below pointer for it so that
		1322	* we can get inserted below this one, which requires we
		1323	* set top to the object below us.
		1324	*/
		1325	if (last && last->below && last != floor)
		1326	top = last->below;
		1327	}
		1328	} /* If objects on this space */
		1329
		1330	if (flag & INS_MAP_LOAD)
		1331	top = GET_MAP_TOP (op->map, op->x, op->y);
		1332
		1333	if (flag & INS_ABOVE_FLOOR_ONLY)
		1334	top = floor;
		1335
		1336	/* Top is the object that our object (op) is going to get inserted above.
		1337	*/
		1338
		1339	/* First object on this space */
		1340	if (!top)
		1341	{
		1342	op->above = GET_MAP_OB (op->map, op->x, op->y);
		1343
		1344	if (op->above)
		1345	op->above->below = op;
		1346
		1347	op->below = NULL;
		1348	op->ms ().bot = op;
1318	}	1349	}
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 {	1350	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 */	1351	{ /* get inserted into the stack above top */
1397	op->above = top->above;	1352	op->above = top->above;
		1353
		1354	if (op->above)
1398	if (op->above) op->above->below = op;	1355	op->above->below = op;
		1356
1399	op->below = top;	1357	op->below = top;
1400	top->above = op;	1358	top->above = op;
1401	}	1359	}
		1360
1402	if (op->above==NULL)	1361	if (op->above == NULL)
1403	SET_MAP_TOP(op->map,op->x, op->y, op);	1362	op->ms ().top = op;
1404	} /* else not INS_BELOW_ORIGINATOR */	1363	} /* else not INS_BELOW_ORIGINATOR */
1405		1364
1406	if(op->type==PLAYER)	1365	if (op->type == PLAYER)
1407	op->contr->do_los=1;	1366	op->contr->do_los = 1;
1408		1367
1409	/* If we have a floor, we know the player, if any, will be above	1368	/* 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.	1369	* it, so save a few ticks and start from there.
1411	*/	1370	*/
1412	if (!(flag & INS_MAP_LOAD))	1371	if (!(flag & INS_MAP_LOAD))
1413	for(tmp=floor?floor:GET_MAP_OB(op->map,op->x,op->y);tmp!=NULL;tmp=tmp->above) {	1372	if (object *pl = op->ms ().player ())
1414	if (tmp->type == PLAYER)	1373	if (pl->contr->ns)
1415	tmp->contr->socket.update_look=1;	1374	pl->contr->ns->floorbox_update ();
1416	}
1417		1375
1418	/* If this object glows, it may affect lighting conditions that are	1376	/* If this object glows, it may affect lighting conditions that are
1419	* visible to others on this map. But update_all_los is really	1377	* 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	1378	* 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	1379	* on the map will get recalculated. The players could very well
1422	* be far away from this change and not affected in any way -	1380	* be far away from this change and not affected in any way -
1423	* this should get redone to only look for players within range,	1381	* this should get redone to only look for players within range,
1424	* or just updating the P_NEED_UPDATE for spaces within this area	1382	* or just updating the P_NEED_UPDATE for spaces within this area
1425	* of effect may be sufficient.	1383	* of effect may be sufficient.
1426	*/	1384	*/
1427	if(MAP_DARKNESS(op->map) && (op->glow_radius != 0))	1385	if (op->map->darkness && (op->glow_radius != 0))
1428	update_all_los(op->map, op->x, op->y);	1386	update_all_los (op->map, op->x, op->y);
1429		1387
1430
1431	/* updates flags (blocked, alive, no magic, etc) for this map space */	1388	/* updates flags (blocked, alive, no magic, etc) for this map space */
1432	update_object(op,UP_OBJ_INSERT);	1389	update_object (op, UP_OBJ_INSERT);
1433		1390
		1391	INVOKE_OBJECT (INSERT, op);
1434		1392
1435	/* Don't know if moving this to the end will break anything. However,	1393	/* 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.	1394	* we want to have floorbox_update called before calling this.
1437	*	1395	*
1438	* check_move_on() must be after this because code called from	1396	* check_move_on() must be after this because code called from
1439	* check_move_on() depends on correct map flags (so functions like	1397	* check_move_on() depends on correct map flags (so functions like
1440	* blocked() and wall() work properly), and these flags are updated by	1398	* blocked() and wall() work properly), and these flags are updated by
1441	* update_object().	1399	* update_object().
1442	*/	1400	*/
1443		1401
1444	/* if this is not the head or flag has been passed, don't check walk on status */	1402	/* 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) {	1403	if (!(flag & INS_NO_WALK_ON) && !op->head)
		1404	{
1447	if (check_move_on(op, originator))	1405	if (check_move_on (op, originator))
1448	return NULL;	1406	return 0;
1449		1407
1450	/* If we are a multi part object, lets work our way through the check	1408	/* If we are a multi part object, lets work our way through the check
1451	* walk on's.	1409	* walk on's.
1452	*/	1410	*/
1453	for (tmp=op->more; tmp!=NULL; tmp=tmp->more)	1411	for (tmp = op->more; tmp != NULL; tmp = tmp->more)
1454	if (check_move_on (tmp, originator))	1412	if (check_move_on (tmp, originator))
1455	return NULL;	1413	return 0;
1456	}	1414	}
		1415
1457	return op;	1416	return op;
1458	}	1417	}
1459		1418
1460	/* this function inserts an object in the map, but if it	1419	/* 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.	1420	* 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.	1421	* op is the object to insert it under: supplies x and the map.
1463	*/	1422	*/
		1423	void
1464	void replace_insert_ob_in_map(const char *arch_string, object *op) {	1424	replace_insert_ob_in_map (const char *arch_string, object *op)
1465	object *tmp;	1425	{
1466	object *tmp1;	1426	object *tmp, *tmp1;
1467		1427
1468	/* first search for itself and remove any old instances */	1428	/* first search for itself and remove any old instances */
1469		1429
1470	for(tmp=GET_MAP_OB(op->map,op->x,op->y); tmp!=NULL; tmp=tmp->above) {	1430	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 */ {	1431	if (!strcmp (tmp->arch->name, arch_string)) /* same archetype */
1472	remove_ob(tmp);	1432	tmp->destroy ();
1473	free_object(tmp);
1474	}
1475	}
1476		1433
1477	tmp1=arch_to_object(find_archetype(arch_string));	1434	tmp1 = arch_to_object (archetype::find (arch_string));
1478		1435
1479		1436	tmp1->x = op->x;
1480	tmp1->x = op->x; tmp1->y = op->y;	1437	tmp1->y = op->y;
1481	insert_ob_in_map(tmp1,op->map,op,0);	1438	insert_ob_in_map (tmp1, op->map, op, 0);
1482	}	1439	}
		1440
		1441	object *
		1442	object::insert_at (object *where, object *originator, int flags)
		1443	{
		1444	where->map->insert (this, where->x, where->y, originator, flags);
		1445	}
1483		1446
1484	/*	1447	/*
1485	* get_split_ob(ob,nr) splits up ob into two parts. The part which	1448	* 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	1449	* is returned contains nr objects, and the remaining parts contains
1487	* the rest (or is removed and freed if that number is 0).	1450	* the rest (or is removed and freed if that number is 0).
1488	* On failure, NULL is returned, and the reason put into the	1451	* On failure, NULL is returned, and the reason put into the
1489	* global static errmsg array.	1452	* global static errmsg array.
1490	*/	1453	*/
1491		1454	object *
1492	object *get_split_ob(object *orig_ob, uint32 nr) {	1455	get_split_ob (object *orig_ob, uint32 nr)
		1456	{
1493	object *newob;	1457	object *newob;
1494	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);	1458	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);
1495		1459
1496	if(orig_ob->nrof<nr) {	1460	if (orig_ob->nrof < nr)
1497	sprintf(errmsg,"There are only %d %ss.",	1461	{
1498	orig_ob->nrof?orig_ob->nrof:1, &orig_ob->name);	1462	sprintf (errmsg, "There are only %d %ss.", orig_ob->nrof ? orig_ob->nrof : 1, &orig_ob->name);
1499	return NULL;	1463	return NULL;
1500	}	1464	}
		1465
1501	newob = object_create_clone(orig_ob);	1466	newob = object_create_clone (orig_ob);
		1467
1502	if((orig_ob->nrof-=nr)<1) {	1468	if ((orig_ob->nrof -= nr) < 1)
1503	if ( ! is_removed)	1469	orig_ob->destroy (1);
1504	remove_ob(orig_ob);
1505	free_object2(orig_ob, 1);
1506	}
1507	else if ( ! is_removed) {	1470	else if (!is_removed)
		1471	{
1508	if(orig_ob->env!=NULL)	1472	if (orig_ob->env != NULL)
1509	sub_weight (orig_ob->env,orig_ob->weight*nr);	1473	sub_weight (orig_ob->env, orig_ob->weight * nr);
1510	if (orig_ob->env == NULL && orig_ob->map->in_memory!=MAP_IN_MEMORY) {	1474	if (orig_ob->env == NULL && orig_ob->map->in_memory != MAP_IN_MEMORY)
		1475	{
1511	strcpy(errmsg, "Tried to split object whose map is not in memory.");	1476	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");	1477	LOG (llevDebug, "Error, Tried to split object whose map is not in memory.\n");
1514	return NULL;	1478	return NULL;
1515	}	1479	}
1516	}	1480	}
		1481
1517	newob->nrof=nr;	1482	newob->nrof = nr;
1518		1483
1519	return newob;	1484	return newob;
1520	}	1485	}
1521		1486
1522	/*	1487	/*
1523	* decrease_ob_nr(object, number) decreases a specified number from	1488	* decrease_ob_nr(object, number) decreases a specified number from
1524	* the amount of an object. If the amount reaches 0, the object	1489	* the amount of an object. If the amount reaches 0, the object
1525	* is subsequently removed and freed.	1490	* is subsequently removed and freed.
1526	*	1491	*
1527	* Return value: 'op' if something is left, NULL if the amount reached 0	1492	* Return value: 'op' if something is left, NULL if the amount reached 0
1528	*/	1493	*/
1529		1494
		1495	object *
1530	object *decrease_ob_nr (object *op, uint32 i)	1496	decrease_ob_nr (object *op, uint32 i)
1531	{	1497	{
1532	object *tmp;	1498	object *tmp;
1533	player *pl;
1534		1499
1535	if (i == 0) /* objects with op->nrof require this check */	1500	if (i == 0) /* objects with op->nrof require this check */
1536	return op;	1501	return op;
1537		1502
1538	if (i > op->nrof)	1503	if (i > op->nrof)
1539	i = op->nrof;	1504	i = op->nrof;
1540		1505
1541	if (QUERY_FLAG (op, FLAG_REMOVED))	1506	if (QUERY_FLAG (op, FLAG_REMOVED))
		1507	op->nrof -= i;
		1508	else if (op->env)
		1509	{
		1510	/* is this object in the players inventory, or sub container
		1511	* therein?
		1512	*/
		1513	tmp = op->in_player ();
		1514	/* nope. Is this a container the player has opened?
		1515	* If so, set tmp to that player.
		1516	* IMO, searching through all the players will mostly
		1517	* likely be quicker than following op->env to the map,
		1518	* and then searching the map for a player.
		1519	*/
		1520	if (!tmp)
		1521	for_all_players (pl)
		1522	if (pl->ob->container == op->env)
		1523	{
		1524	tmp = pl->ob;
		1525	break;
		1526	}
		1527
		1528	if (i < op->nrof)
		1529	{
		1530	sub_weight (op->env, op->weight * i);
		1531	op->nrof -= i;
		1532	if (tmp)
		1533	esrv_send_item (tmp, op);
		1534	}
		1535	else
		1536	{
		1537	op->remove ();
		1538	op->nrof = 0;
		1539	if (tmp)
		1540	esrv_del_item (tmp->contr, op->count);
		1541	}
1542	{	1542	}
		1543	else
		1544	{
		1545	object *above = op->above;
		1546
		1547	if (i < op->nrof)
1543	op->nrof -= i;	1548	op->nrof -= i;
1544	}	1549	else
1545	else if (op->env != NULL)
1546	{
1547	/* is this object in the players inventory, or sub container
1548	* therein?
1549	*/	1550	{
1550	tmp = is_player_inv (op->env);	1551	op->remove ();
1551	/* nope. Is this a container the player has opened?	1552	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	}	1553	}
1563		1554
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 */	1555	/* Since we just removed op, op->above is null */
1589	for (tmp = above; tmp != NULL; tmp = tmp->above)	1556	for (tmp = above; tmp; tmp = tmp->above)
1590	if (tmp->type == PLAYER) {	1557	if (tmp->type == PLAYER)
		1558	{
1591	if (op->nrof)	1559	if (op->nrof)
1592	esrv_send_item(tmp, op);	1560	esrv_send_item (tmp, op);
1593	else	1561	else
1594	esrv_del_item(tmp->contr, op->count);	1562	esrv_del_item (tmp->contr, op->count);
1595	}	1563	}
1596	}	1564	}
1597		1565
1598	if (op->nrof) {	1566	if (op->nrof)
1599	return op;	1567	return op;
1600	} else {	1568	else
1601	free_object (op);	1569	{
		1570	op->destroy ();
1602	return NULL;	1571	return 0;
1603	}	1572	}
1604	}	1573	}
1605		1574
1606	/*	1575	/*
1607	* add_weight(object, weight) adds the specified weight to an object,	1576	* add_weight(object, weight) adds the specified weight to an object,
1608	* and also updates how much the environment(s) is/are carrying.	1577	* and also updates how much the environment(s) is/are carrying.
1609	*/	1578	*/
1610		1579
		1580	void
1611	void add_weight (object *op, signed long weight) {	1581	add_weight (object *op, signed long weight)
		1582	{
1612	while (op!=NULL) {	1583	while (op != NULL)
		1584	{
1613	if (op->type == CONTAINER) {	1585	if (op->type == CONTAINER)
1614	weight=(signed long)(weight*(100-op->stats.Str)/100);	1586	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1615	}	1587
1616	op->carrying+=weight;	1588	op->carrying += weight;
1617	op=op->env;	1589	op = op->env;
1618	}	1590	}
1619	}	1591	}
1620		1592
		1593	object *
		1594	insert_ob_in_ob (object *op, object *where)
		1595	{
		1596	if (!where)
		1597	{
		1598	char *dump = dump_object (op);
		1599	LOG (llevError, "Trying to put object in NULL.\n%s\n", dump);
		1600	free (dump);
		1601	return op;
		1602	}
		1603
		1604	if (where->head)
		1605	{
		1606	LOG (llevDebug, "Warning: Tried to insert object into wrong part of multipart object.\n");
		1607	where = where->head;
		1608	}
		1609
		1610	return where->insert (op);
		1611	}
		1612
1621	/*	1613	/*
1622	* insert_ob_in_ob(op,environment):	1614	* env->insert (op)
1623	* This function inserts the object op in the linked list	1615	* This function inserts the object op in the linked list
1624	* inside the object environment.	1616	* inside the object environment.
1625	*	1617	*
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	1618	* The function returns now pointer to inserted item, and return value can
1632	* be != op, if items are merged. -Tero	1619	* be != op, if items are merged. -Tero
1633	*/	1620	*/
1634		1621
1635	object *insert_ob_in_ob(object *op,object *where) {	1622	object *
		1623	object::insert (object *op)
		1624	{
1636	object *tmp, *otmp;	1625	object *tmp, *otmp;
1637		1626
1638	if(!QUERY_FLAG(op,FLAG_REMOVED)) {	1627	if (!QUERY_FLAG (op, FLAG_REMOVED))
1639	dump_object(op);	1628	op->remove ();
1640	LOG(llevError,"Trying to insert (ob) inserted object.\n%s\n", errmsg);	1629
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) {	1630	if (op->more)
		1631	{
1654	LOG(llevError, "Tried to insert multipart object %s (%d)\n",	1632	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);
1655	&op->name, op->count);
1656	return op;	1633	return op;
1657	}	1634	}
		1635
1658	CLEAR_FLAG(op, FLAG_OBJ_ORIGINAL);	1636	CLEAR_FLAG (op, FLAG_OBJ_ORIGINAL);
1659	CLEAR_FLAG(op, FLAG_REMOVED);	1637	CLEAR_FLAG (op, FLAG_REMOVED);
1660	if(op->nrof) {	1638	if (op->nrof)
		1639	{
1661	for(tmp=where->inv;tmp!=NULL;tmp=tmp->below)	1640	for (tmp = inv; tmp != NULL; tmp = tmp->below)
1662	if ( CAN_MERGE(tmp,op) ) {	1641	if (object::can_merge (tmp, op))
		1642	{
1663	/* return the original object and remove inserted object	1643	/* return the original object and remove inserted object
1664	(client needs the original object) */	1644	(client needs the original object) */
1665	tmp->nrof += op->nrof;	1645	tmp->nrof += op->nrof;
1666	/* Weight handling gets pretty funky. Since we are adding to	1646	/* Weight handling gets pretty funky. Since we are adding to
1667	* tmp->nrof, we need to increase the weight.	1647	* tmp->nrof, we need to increase the weight.
1668	*/	1648	*/
1669	add_weight (where, op->weight*op->nrof);	1649	add_weight (this, op->weight * op->nrof);
1670	SET_FLAG(op, FLAG_REMOVED);	1650	SET_FLAG (op, FLAG_REMOVED);
1671	free_object(op); /* free the inserted object */	1651	op->destroy (); /* free the inserted object */
1672	op = tmp;	1652	op = tmp;
1673	remove_ob (op); /* and fix old object's links */	1653	op->remove (); /* and fix old object's links */
1674	CLEAR_FLAG(op, FLAG_REMOVED);	1654	CLEAR_FLAG (op, FLAG_REMOVED);
1675	break;	1655	break;
1676	}	1656	}
1677		1657
1678	/* I assume combined objects have no inventory	1658	/* I assume combined objects have no inventory
1679	* We add the weight - this object could have just been removed	1659	* We add the weight - this object could have just been removed
1680	* (if it was possible to merge). calling remove_ob will subtract	1660	* (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	1661	* the weight, so we need to add it in again, since we actually do
1682	* the linking below	1662	* the linking below
1683	*/	1663	*/
1684	add_weight (where, op->weight*op->nrof);	1664	add_weight (this, op->weight * op->nrof);
		1665	}
1685	} else	1666	else
1686	add_weight (where, (op->weight+op->carrying));	1667	add_weight (this, (op->weight + op->carrying));
1687		1668
1688	otmp=is_player_inv(where);	1669	otmp = this->in_player ();
1689	if (otmp&&otmp->contr!=NULL) {	1670	if (otmp && otmp->contr)
1690	if (!QUERY_FLAG(otmp,FLAG_NO_FIX_PLAYER))	1671	if (!QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1691	fix_player(otmp);	1672	otmp->update_stats ();
1692	}
1693		1673
1694	op->map=NULL;	1674	op->map = 0;
1695	op->env=where;	1675	op->env = this;
1696	op->above=NULL;	1676	op->above = 0;
1697	op->below=NULL;	1677	op->below = 0;
1698	op->x=0,op->y=0;	1678	op->x = 0, op->y = 0;
1699		1679
1700	/* reset the light list and los of the players on the map */	1680	/* reset the light list and los of the players on the map */
1701	if((op->glow_radius!=0)&&where->map)	1681	if ((op->glow_radius != 0) && map)
1702	{	1682	{
1703	#ifdef DEBUG_LIGHTS	1683	#ifdef DEBUG_LIGHTS
1704	LOG(llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n",	1684	LOG (llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n", op->name);
1705	op->name);
1706	#endif /* DEBUG_LIGHTS */	1685	#endif /* DEBUG_LIGHTS */
1707	if (MAP_DARKNESS(where->map)) update_all_los(where->map, where->x, where->y);	1686	if (map->darkness)
		1687	update_all_los (map, x, y);
1708	}	1688	}
1709		1689
1710	/* Client has no idea of ordering so lets not bother ordering it here.	1690	/* Client has no idea of ordering so lets not bother ordering it here.
1711	* It sure simplifies this function...	1691	* It sure simplifies this function...
1712	*/	1692	*/
1713	if (where->inv==NULL)	1693	if (!inv)
1714	where->inv=op;	1694	inv = op;
1715	else {	1695	else
		1696	{
1716	op->below = where->inv;	1697	op->below = inv;
1717	op->below->above = op;	1698	op->below->above = op;
1718	where->inv = op;	1699	inv = op;
1719	}	1700	}
		1701
		1702	INVOKE_OBJECT (INSERT, this);
		1703
1720	return op;	1704	return op;
1721	}	1705	}
1722		1706
1723	/*	1707	/*
1724	* Checks if any objects has a move_type that matches objects	1708	* Checks if any objects has a move_type that matches objects
…		…
1738	*	1722	*
1739	* MSW 2001-07-08: Check all objects on space, not just those below	1723	* 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	1724	* object being inserted. insert_ob_in_map may not put new objects
1741	* on top.	1725	* on top.
1742	*/	1726	*/
1743		1727	int
1744	int check_move_on (object *op, object *originator)	1728	check_move_on (object *op, object *originator)
1745	{	1729	{
1746	object *tmp;	1730	object *tmp;
1747	tag_t tag;
1748	mapstruct *m=op->map;	1731	maptile *m = op->map;
1749	int x=op->x, y=op->y;	1732	int x = op->x, y = op->y;
		1733
1750	MoveType move_on, move_slow, move_block;	1734	MoveType move_on, move_slow, move_block;
1751		1735
1752	if(QUERY_FLAG(op,FLAG_NO_APPLY))	1736	if (QUERY_FLAG (op, FLAG_NO_APPLY))
1753	return 0;	1737	return 0;
1754		1738
1755	tag = op->count;
1756
1757	move_on = GET_MAP_MOVE_ON(op->map, op->x, op->y);	1739	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);	1740	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);	1741	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);
1760		1742
1761	/* if nothing on this space will slow op down or be applied,	1743	/* 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	1744	* 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	1745	* is set, as lots of objects don't have it set - we treat that
1764	* as walking.	1746	* as walking.
1765	*/	1747	*/
1766	if (op->move_type && !(op->move_type & move_on) && !(op->move_type & move_slow))	1748	if (op->move_type && !(op->move_type & move_on) && !(op->move_type & move_slow))
1767	return 0;	1749	return 0;
1768		1750
1769	/* This is basically inverse logic of that below - basically,	1751	/* This is basically inverse logic of that below - basically,
1770	* if the object can avoid the move on or slow move, they do so,	1752	* 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	1753	* but can't do it if the alternate movement they are using is
1772	* blocked. Logic on this seems confusing, but does seem correct.	1754	* blocked. Logic on this seems confusing, but does seem correct.
1773	*/	1755	*/
1774	if ((op->move_type & ~move_on & ~move_block) != 0 &&	1756	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;	1757	return 0;
1776		1758
1777	/* The objects have to be checked from top to bottom.	1759	/* The objects have to be checked from top to bottom.
1778	* Hence, we first go to the top:	1760	* Hence, we first go to the top:
1779	*/	1761	*/
1780		1762
1781	for (tmp=GET_MAP_OB(op->map, op->x, op->y); tmp!=NULL &&	1763	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp && tmp->above; tmp = tmp->above)
1782	tmp->above!=NULL; tmp=tmp->above) {	1764	{
1783	/* Trim the search when we find the first other spell effect	1765	/* Trim the search when we find the first other spell effect
1784	* this helps performance so that if a space has 50 spell objects,	1766	* this helps performance so that if a space has 50 spell objects,
1785	* we don't need to check all of them.	1767	* we don't need to check all of them.
1786	*/	1768	*/
1787	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG(tmp, FLAG_NO_PICK)) break;	1769	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG (tmp, FLAG_NO_PICK))
		1770	break;
		1771	}
		1772
		1773	for (; tmp; tmp = tmp->below)
1788	}	1774	{
1789	for(;tmp!=NULL; tmp=tmp->below) {	1775	if (tmp == op)
1790	if (tmp == op) continue; /* Can't apply yourself */	1776	continue; /* Can't apply yourself */
1791		1777
1792	/* Check to see if one of the movement types should be slowed down.	1778	/* 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	1779	* Second check makes sure that the movement types not being slowed
1794	* (~slow_move) is not blocked on this space - just because the	1780	* (~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	1781	* 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.	1782	* swim on that space, can't use it to avoid the penalty.
1797	*/	1783	*/
1798	if (!QUERY_FLAG(op, FLAG_WIZPASS)) {	1784	if (!QUERY_FLAG (op, FLAG_WIZPASS))
		1785	{
1799	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||	1786	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)) {	1787	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))
		1788	{
1802		1789
1803	float diff;	1790	float
1804
1805	diff = tmp->move_slow_penalty*FABS(op->speed);	1791	diff = tmp->move_slow_penalty * FABS (op->speed);
		1792
1806	if (op->type == PLAYER) {	1793	if (op->type == PLAYER)
1807	if ((QUERY_FLAG(tmp, FLAG_IS_HILLY) && find_skill_by_number(op, SK_CLIMBING)) ||	1794	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))) {	1795	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))
1809	diff /= 4.0;	1796	diff /= 4.0;
1810	}	1797
1811	}
1812	op->speed_left -= diff;	1798	op->speed_left -= diff;
1813	}	1799	}
1814	}	1800	}
1815		1801
1816	/* Basically same logic as above, except now for actual apply. */	1802	/* Basically same logic as above, except now for actual apply. */
1817	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||	1803	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)) {	1804	((op->move_type & tmp->move_on) && (op->move_type & ~tmp->move_on & ~tmp->move_block) == 0))
1820		1805	{
1821	move_apply(tmp, op, originator);	1806	move_apply (tmp, op, originator);
		1807
1822	if (was_destroyed (op, tag))	1808	if (op->destroyed ())
1823	return 1;	1809	return 1;
1824		1810
1825	/* what the person/creature stepped onto has moved the object	1811	/* what the person/creature stepped onto has moved the object
1826	* someplace new. Don't process any further - if we did,	1812	* someplace new. Don't process any further - if we did,
1827	* have a feeling strange problems would result.	1813	* have a feeling strange problems would result.
1828	*/	1814	*/
1829	if (op->map != m || op->x != x || op->y != y) return 0;	1815	if (op->map != m || op->x != x || op->y != y)
		1816	return 0;
1830	}	1817	}
1831	}	1818	}
		1819
1832	return 0;	1820	return 0;
1833	}	1821	}
1834		1822
1835	/*	1823	/*
1836	* present_arch(arch, map, x, y) searches for any objects with	1824	* present_arch(arch, map, x, y) searches for any objects with
1837	* a matching archetype at the given map and coordinates.	1825	* a matching archetype at the given map and coordinates.
1838	* The first matching object is returned, or NULL if none.	1826	* The first matching object is returned, or NULL if none.
1839	*/	1827	*/
1840		1828	object *
1841	object *present_arch(const archetype *at, mapstruct *m, int x, int y) {	1829	present_arch (const archetype *at, maptile *m, int x, int y)
1842	object *tmp;	1830	{
1843	if(m==NULL || out_of_map(m,x,y)) {	1831	if (m == NULL || out_of_map (m, x, y))
		1832	{
1844	LOG(llevError,"Present_arch called outside map.\n");	1833	LOG (llevError, "Present_arch called outside map.\n");
1845	return NULL;	1834	return NULL;
1846	}	1835	}
		1836
1847	for(tmp=GET_MAP_OB(m,x,y); tmp != NULL; tmp = tmp->above)	1837	for (object *tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)
1848	if(tmp->arch == at)	1838	if (tmp->arch == at)
1849	return tmp;	1839	return tmp;
		1840
1850	return NULL;	1841	return NULL;
1851	}	1842	}
1852		1843
1853	/*	1844	/*
1854	* present(type, map, x, y) searches for any objects with	1845	* present(type, map, x, y) searches for any objects with
1855	* a matching type variable at the given map and coordinates.	1846	* a matching type variable at the given map and coordinates.
1856	* The first matching object is returned, or NULL if none.	1847	* The first matching object is returned, or NULL if none.
1857	*/	1848	*/
1858		1849	object *
1859	object *present(unsigned char type,mapstruct *m, int x,int y) {	1850	present (unsigned char type, maptile *m, int x, int y)
1860	object *tmp;	1851	{
1861	if(out_of_map(m,x,y)) {	1852	if (out_of_map (m, x, y))
		1853	{
1862	LOG(llevError,"Present called outside map.\n");	1854	LOG (llevError, "Present called outside map.\n");
1863	return NULL;	1855	return NULL;
1864	}	1856	}
		1857
1865	for(tmp=GET_MAP_OB(m,x,y);tmp!=NULL;tmp=tmp->above)	1858	for (object *tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)
1866	if(tmp->type==type)	1859	if (tmp->type == type)
1867	return tmp;	1860	return tmp;
		1861
1868	return NULL;	1862	return NULL;
1869	}	1863	}
1870		1864
1871	/*	1865	/*
1872	* present_in_ob(type, object) searches for any objects with	1866	* present_in_ob(type, object) searches for any objects with
1873	* a matching type variable in the inventory of the given object.	1867	* a matching type variable in the inventory of the given object.
1874	* The first matching object is returned, or NULL if none.	1868	* The first matching object is returned, or NULL if none.
1875	*/	1869	*/
1876		1870	object *
1877	object *present_in_ob(unsigned char type, const object *op) {	1871	present_in_ob (unsigned char type, const object *op)
1878	object *tmp;	1872	{
1879	for(tmp=op->inv;tmp!=NULL;tmp=tmp->below)	1873	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
1880	if(tmp->type==type)	1874	if (tmp->type == type)
1881	return tmp;	1875	return tmp;
		1876
1882	return NULL;	1877	return NULL;
1883	}	1878	}
1884		1879
1885	/*	1880	/*
1886	* present_in_ob (type, str, object) searches for any objects with	1881	* present_in_ob (type, str, object) searches for any objects with
…		…
1894	* str is the string to match against. Note that we match against	1889	* str is the string to match against. Note that we match against
1895	* the object name, not the archetype name. this is so that the	1890	* 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	1891	* spell code can use one object type (force), but change it's name
1897	* to be unique.	1892	* to be unique.
1898	*/	1893	*/
1899		1894	object *
1900	object *present_in_ob_by_name(int type, const char *str, const object *op) {	1895	present_in_ob_by_name (int type, const char *str, const object *op)
1901	object *tmp;	1896	{
1902
1903	for(tmp=op->inv; tmp!=NULL; tmp=tmp->below) {	1897	for (object *tmp = op->inv; tmp; tmp = tmp->below)
1904	if ((type==-1 || tmp->type==type) && (!strcmp(str, tmp->name)))	1898	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))
1905	return tmp;	1899	return tmp;
1906	}	1900
1907	return NULL;	1901	return 0;
1908	}	1902	}
1909		1903
1910	/*	1904	/*
1911	* present_arch_in_ob(archetype, object) searches for any objects with	1905	* present_arch_in_ob(archetype, object) searches for any objects with
1912	* a matching archetype in the inventory of the given object.	1906	* a matching archetype in the inventory of the given object.
1913	* The first matching object is returned, or NULL if none.	1907	* The first matching object is returned, or NULL if none.
1914	*/	1908	*/
1915		1909	object *
1916	object *present_arch_in_ob(const archetype *at, const object *op) {	1910	present_arch_in_ob (const archetype *at, const object *op)
1917	object *tmp;	1911	{
1918	for(tmp=op->inv;tmp!=NULL;tmp=tmp->below)	1912	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
1919	if( tmp->arch == at)	1913	if (tmp->arch == at)
1920	return tmp;	1914	return tmp;
		1915
1921	return NULL;	1916	return NULL;
1922	}	1917	}
1923		1918
1924	/*	1919	/*
1925	* activate recursively a flag on an object inventory	1920	* activate recursively a flag on an object inventory
1926	*/	1921	*/
		1922	void
1927	void flag_inv(object*op, int flag){	1923	flag_inv (object *op, int flag)
1928	object *tmp;	1924	{
1929	if(op->inv)	1925	if (op->inv)
1930	for(tmp = op->inv; tmp != NULL; tmp = tmp->below){	1926	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
		1927	{
1931	SET_FLAG(tmp, flag);	1928	SET_FLAG (tmp, flag);
1932	flag_inv(tmp,flag);	1929	flag_inv (tmp, flag);
1933	}	1930	}
		1931	}
		1932
1934	}/*	1933	/*
1935	* desactivate recursively a flag on an object inventory	1934	* deactivate recursively a flag on an object inventory
1936	*/	1935	*/
		1936	void
1937	void unflag_inv(object*op, int flag){	1937	unflag_inv (object *op, int flag)
1938	object *tmp;	1938	{
1939	if(op->inv)	1939	if (op->inv)
1940	for(tmp = op->inv; tmp != NULL; tmp = tmp->below){	1940	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
		1941	{
1941	CLEAR_FLAG(tmp, flag);	1942	CLEAR_FLAG (tmp, flag);
1942	unflag_inv(tmp,flag);	1943	unflag_inv (tmp, flag);
1943	}	1944	}
1944	}	1945	}
1945		1946
1946	/*	1947	/*
1947	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in	1948	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in
1948	* all it's inventory (recursively).	1949	* all it's inventory (recursively).
1949	* If checksums are used, a player will get set_cheat called for	1950	* 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.	1951	* him/her-self and all object carried by a call to this function.
1951	*/	1952	*/
1952		1953	void
1953	void set_cheat(object *op) {	1954	set_cheat (object *op)
		1955	{
1954	SET_FLAG(op, FLAG_WAS_WIZ);	1956	SET_FLAG (op, FLAG_WAS_WIZ);
1955	flag_inv(op, FLAG_WAS_WIZ);	1957	flag_inv (op, FLAG_WAS_WIZ);
1956	}	1958	}
1957		1959
1958	/*	1960	/*
1959	* find_free_spot(object, map, x, y, start, stop) will search for	1961	* 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	1962	* a spot at the given map and coordinates which will be able to contain
…		…
1974	* because arch_blocked (now ob_blocked) needs to know the movement type	1976	* because arch_blocked (now ob_blocked) needs to know the movement type
1975	* to know if the space in question will block the object. We can't use	1977	* 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	1978	* the archetype because that isn't correct if the monster has been
1977	* customized, changed states, etc.	1979	* customized, changed states, etc.
1978	*/	1980	*/
1979		1981	int
1980	int find_free_spot(const object *ob, mapstruct *m,int x,int y,int start,int stop) {	1982	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)
		1983	{
1981	int i,index=0, flag;	1984	int index = 0, flag;
1982	static int altern[SIZEOFFREE];	1985	int altern[SIZEOFFREE];
1983		1986
1984	for(i=start;i<stop;i++) {	1987	for (int i = start; i < stop; i++)
		1988	{
1985	flag = ob_blocked(ob,m,x+freearr_x[i],y+freearr_y[i]);	1989	flag = ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]);
1986	if(!flag)	1990	if (!flag)
1987	altern[index++]=i;	1991	altern [index++] = i;
1988		1992
1989	/* Basically, if we find a wall on a space, we cut down the search size.	1993	/* 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.	1994	* 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 -	1995	* 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	1996	* 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	1997	* spaces in all the other directions, this will reduce the search space
1994	* to only the spaces immediately surrounding the target area, and	1998	* to only the spaces immediately surrounding the target area, and
1995	* won't look 2 spaces south of the target space.	1999	* won't look 2 spaces south of the target space.
1996	*/	2000	*/
1997	else if ((flag & AB_NO_PASS) && maxfree[i]<stop)	2001	else if ((flag & P_NO_PASS) && maxfree[i] < stop)
1998	stop=maxfree[i];	2002	stop = maxfree[i];
1999	}	2003	}
2000	if(!index) return -1;	2004
		2005	if (!index)
		2006	return -1;
		2007
2001	return altern[RANDOM()%index];	2008	return altern[RANDOM () % index];
2002	}	2009	}
2003		2010
2004	/*	2011	/*
2005	* find_first_free_spot(archetype, mapstruct, x, y) works like	2012	* find_first_free_spot(archetype, maptile, x, y) works like
2006	* find_free_spot(), but it will search max number of squares.	2013	* find_free_spot(), but it will search max number of squares.
2007	* But it will return the first available spot, not a random choice.	2014	* 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.	2015	* Changed 0.93.2: Have it return -1 if there is no free spot available.
2009	*/	2016	*/
2010		2017	int
2011	int find_first_free_spot(const object *ob, mapstruct *m,int x,int y) {	2018	find_first_free_spot (const object *ob, maptile *m, int x, int y)
2012	int i;	2019	{
2013	for(i=0;i<SIZEOFFREE;i++) {	2020	for (int i = 0; i < SIZEOFFREE; i++)
2014	if(!ob_blocked(ob,m,x+freearr_x[i],y+freearr_y[i]))	2021	if (!ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]))
2015	return i;	2022	return i;
2016	}	2023
2017	return -1;	2024	return -1;
2018	}	2025	}
2019		2026
2020	/*	2027	/*
2021	* The function permute(arr, begin, end) randomly reorders the array	2028	* The function permute(arr, begin, end) randomly reorders the array
2022	* arr[begin..end-1].	2029	* arr[begin..end-1].
		2030	* now uses a fisher-yates shuffle, old permute was broken
2023	*/	2031	*/
		2032	static void
2024	static void permute(int *arr, int begin, int end)	2033	permute (int *arr, int begin, int end)
2025	{	2034	{
2026	int i, j, tmp, len;	2035	arr += begin;
		2036	end -= begin;
2027		2037
2028	len = end-begin;	2038	while (--end)
2029	for(i = begin; i < end; i++)	2039	swap (arr [end], arr [RANDOM () % (end + 1)]);
2030	{
2031	j = begin+RANDOM()%len;
2032
2033	tmp = arr[i];
2034	arr[i] = arr[j];
2035	arr[j] = tmp;
2036	}
2037	}	2040	}
2038		2041
2039	/* new function to make monster searching more efficient, and effective!	2042	/* new function to make monster searching more efficient, and effective!
2040	* This basically returns a randomized array (in the passed pointer) of	2043	* 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	2044	* 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	2045	* 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	2046	* 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.	2047	* the 3x3 area will be searched, just not in a predictable order.
2045	*/	2048	*/
		2049	void
2046	void get_search_arr(int *search_arr)	2050	get_search_arr (int *search_arr)
2047	{	2051	{
2048	int i;	2052	int i;
2049		2053
2050	for(i = 0; i < SIZEOFFREE; i++)	2054	for (i = 0; i < SIZEOFFREE; i++)
2051	{
2052	search_arr[i] = i;	2055	search_arr[i] = i;
2053	}
2054		2056
2055	permute(search_arr, 1, SIZEOFFREE1+1);	2057	permute (search_arr, 1, SIZEOFFREE1 + 1);
2056	permute(search_arr, SIZEOFFREE1+1, SIZEOFFREE2+1);	2058	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);
2057	permute(search_arr, SIZEOFFREE2+1, SIZEOFFREE);	2059	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);
2058	}	2060	}
2059		2061
2060	/*	2062	/*
2061	* find_dir(map, x, y, exclude) will search some close squares in the	2063	* find_dir(map, x, y, exclude) will search some close squares in the
2062	* given map at the given coordinates for live objects.	2064	* given map at the given coordinates for live objects.
…		…
2067	* Perhaps incorrectly, but I'm making the assumption that exclude	2069	* Perhaps incorrectly, but I'm making the assumption that exclude
2068	* is actually want is going to try and move there. We need this info	2070	* 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	2071	* because we have to know what movement the thing looking to move
2070	* there is capable of.	2072	* there is capable of.
2071	*/	2073	*/
2072		2074	int
2073	int find_dir(mapstruct *m, int x, int y, object *exclude) {	2075	find_dir (maptile *m, int x, int y, object *exclude)
		2076	{
2074	int i,max=SIZEOFFREE, mflags;	2077	int i, max = SIZEOFFREE, mflags;
		2078
2075	sint16 nx, ny;	2079	sint16 nx, ny;
2076	object *tmp;	2080	object *tmp;
2077	mapstruct *mp;	2081	maptile *mp;
		2082
2078	MoveType blocked, move_type;	2083	MoveType blocked, move_type;
2079		2084
2080	if (exclude && exclude->head) {	2085	if (exclude && exclude->head)
		2086	{
2081	exclude = exclude->head;	2087	exclude = exclude->head;
2082	move_type = exclude->move_type;	2088	move_type = exclude->move_type;
2083	} else {	2089	}
		2090	else
		2091	{
2084	/* If we don't have anything, presume it can use all movement types. */	2092	/* If we don't have anything, presume it can use all movement types. */
2085	move_type=MOVE_ALL;	2093	move_type = MOVE_ALL;
		2094	}
		2095
		2096	for (i = 1; i < max; i++)
2086	}	2097	{
2087
2088	for(i=1;i<max;i++) {
2089	mp = m;	2098	mp = m;
2090	nx = x + freearr_x[i];	2099	nx = x + freearr_x[i];
2091	ny = y + freearr_y[i];	2100	ny = y + freearr_y[i];
2092		2101
2093	mflags = get_map_flags(m, &mp, nx, ny, &nx, &ny);	2102	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);
		2103
2094	if (mflags & P_OUT_OF_MAP) {	2104	if (mflags & P_OUT_OF_MAP)
		2105	max = maxfree[i];
		2106	else
		2107	{
		2108	mapspace &ms = mp->at (nx, ny);
		2109
		2110	blocked = ms.move_block;
		2111
		2112	if ((move_type & blocked) == move_type)
2095	max = maxfree[i];	2113	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) {	2114	else if (mflags & P_IS_ALIVE)
2102	for (tmp=GET_MAP_OB(mp,nx,ny); tmp!= NULL; tmp=tmp->above) {	2115	{
		2116	for (tmp = ms.bot; tmp; tmp = tmp->above)
2103	if ((QUERY_FLAG(tmp,FLAG_MONSTER) || tmp->type==PLAYER) &&	2117	if ((tmp->flag [FLAG_MONSTER] || tmp->type == PLAYER)
2104	(tmp != exclude ||(tmp->head && tmp->head != exclude))) {	2118	&& (tmp != exclude || (tmp->head && tmp->head != exclude)))
2105	break;	2119	break;
2106	}	2120
2107	}
2108	if(tmp) {	2121	if (tmp)
2109	return freedir[i];	2122	return freedir[i];
2110	}
2111	}	2123	}
2112	}	2124	}
2113	}	2125	}
		2126
2114	return 0;	2127	return 0;
2115	}	2128	}
2116		2129
2117	/*	2130	/*
2118	* distance(object 1, object 2) will return the square of the	2131	* distance(object 1, object 2) will return the square of the
2119	* distance between the two given objects.	2132	* distance between the two given objects.
2120	*/	2133	*/
2121		2134	int
2122	int distance(const object *ob1, const object *ob2) {	2135	distance (const object *ob1, const object *ob2)
2123	int i;	2136	{
2124	i= (ob1->x - ob2->x)*(ob1->x - ob2->x)+	2137	return (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);
2125	(ob1->y - ob2->y)*(ob1->y - ob2->y);
2126	return i;
2127	}	2138	}
2128		2139
2129	/*	2140	/*
2130	* find_dir_2(delta-x,delta-y) will return a direction in which	2141	* 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	2142	* an object which has subtracted the x and y coordinates of another
2132	* object, needs to travel toward it.	2143	* object, needs to travel toward it.
2133	*/	2144	*/
2134		2145	int
2135	int find_dir_2(int x, int y) {	2146	find_dir_2 (int x, int y)
		2147	{
2136	int q;	2148	int q;
2137		2149
2138	if(y)	2150	if (y)
2139	q=x*100/y;	2151	q = x * 100 / y;
2140	else if (x)	2152	else if (x)
2141	q= -300*x;	2153	q = -300 * x;
2142	else	2154	else
2143	return 0;	2155	return 0;
2144		2156
2145	if(y>0) {	2157	if (y > 0)
		2158	{
2146	if(q < -242)	2159	if (q < -242)
2147	return 3 ;	2160	return 3;
2148	if (q < -41)	2161	if (q < -41)
2149	return 2 ;	2162	return 2;
2150	if (q < 41)	2163	if (q < 41)
2151	return 1 ;	2164	return 1;
2152	if (q < 242)	2165	if (q < 242)
2153	return 8 ;	2166	return 8;
2154	return 7 ;	2167	return 7;
2155	}	2168	}
2156		2169
2157	if (q < -242)	2170	if (q < -242)
2158	return 7 ;	2171	return 7;
2159	if (q < -41)	2172	if (q < -41)
2160	return 6 ;	2173	return 6;
2161	if (q < 41)	2174	if (q < 41)
2162	return 5 ;	2175	return 5;
2163	if (q < 242)	2176	if (q < 242)
2164	return 4 ;	2177	return 4;
2165		2178
2166	return 3 ;	2179	return 3;
2167	}	2180	}
2168		2181
2169	/*	2182	/*
2170	* absdir(int): Returns a number between 1 and 8, which represent	2183	* absdir(int): Returns a number between 1 and 8, which represent
2171	* the "absolute" direction of a number (it actually takes care of	2184	* the "absolute" direction of a number (it actually takes care of
2172	* "overflow" in previous calculations of a direction).	2185	* "overflow" in previous calculations of a direction).
2173	*/	2186	*/
2174		2187
		2188	int
2175	int absdir(int d) {	2189	absdir (int d)
2176	while(d<1) d+=8;	2190	{
2177	while(d>8) d-=8;	2191	while (d < 1)
		2192	d += 8;
		2193
		2194	while (d > 8)
		2195	d -= 8;
		2196
2178	return d;	2197	return d;
2179	}	2198	}
2180		2199
2181	/*	2200	/*
2182	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is	2201	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is
2183	* between two directions (which are expected to be absolute (see absdir())	2202	* between two directions (which are expected to be absolute (see absdir())
2184	*/	2203	*/
2185		2204
		2205	int
2186	int dirdiff(int dir1, int dir2) {	2206	dirdiff (int dir1, int dir2)
		2207	{
2187	int d;	2208	int d;
		2209
2188	d = abs(dir1 - dir2);	2210	d = abs (dir1 - dir2);
2189	if(d>4)	2211	if (d > 4)
2190	d = 8 - d;	2212	d = 8 - d;
		2213
2191	return d;	2214	return d;
2192	}	2215	}
2193		2216
2194	/* peterm:	2217	/* peterm:
2195	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.	2218	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.
…		…
2198	* This basically means that if direction is 15, then it could either go	2221	* This basically means that if direction is 15, then it could either go
2199	* direction 4, 14, or 16 to get back to where we are.	2222	* 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	2223	* Moved from spell_util.c to object.c with the other related direction
2201	* functions.	2224	* functions.
2202	*/	2225	*/
2203
2204	int reduction_dir[SIZEOFFREE][3] = {	2226	int reduction_dir[SIZEOFFREE][3] = {
2205	{0,0,0}, /* 0 */	2227	{0, 0, 0}, /* 0 */
2206	{0,0,0}, /* 1 */	2228	{0, 0, 0}, /* 1 */
2207	{0,0,0}, /* 2 */	2229	{0, 0, 0}, /* 2 */
2208	{0,0,0}, /* 3 */	2230	{0, 0, 0}, /* 3 */
2209	{0,0,0}, /* 4 */	2231	{0, 0, 0}, /* 4 */
2210	{0,0,0}, /* 5 */	2232	{0, 0, 0}, /* 5 */
2211	{0,0,0}, /* 6 */	2233	{0, 0, 0}, /* 6 */
2212	{0,0,0}, /* 7 */	2234	{0, 0, 0}, /* 7 */
2213	{0,0,0}, /* 8 */	2235	{0, 0, 0}, /* 8 */
2214	{8,1,2}, /* 9 */	2236	{8, 1, 2}, /* 9 */
2215	{1,2,-1}, /* 10 */	2237	{1, 2, -1}, /* 10 */
2216	{2,10,12}, /* 11 */	2238	{2, 10, 12}, /* 11 */
2217	{2,3,-1}, /* 12 */	2239	{2, 3, -1}, /* 12 */
2218	{2,3,4}, /* 13 */	2240	{2, 3, 4}, /* 13 */
2219	{3,4,-1}, /* 14 */	2241	{3, 4, -1}, /* 14 */
2220	{4,14,16}, /* 15 */	2242	{4, 14, 16}, /* 15 */
2221	{5,4,-1}, /* 16 */	2243	{5, 4, -1}, /* 16 */
2222	{4,5,6}, /* 17 */	2244	{4, 5, 6}, /* 17 */
2223	{6,5,-1}, /* 18 */	2245	{6, 5, -1}, /* 18 */
2224	{6,20,18}, /* 19 */	2246	{6, 20, 18}, /* 19 */
2225	{7,6,-1}, /* 20 */	2247	{7, 6, -1}, /* 20 */
2226	{6,7,8}, /* 21 */	2248	{6, 7, 8}, /* 21 */
2227	{7,8,-1}, /* 22 */	2249	{7, 8, -1}, /* 22 */
2228	{8,22,24}, /* 23 */	2250	{8, 22, 24}, /* 23 */
2229	{8,1,-1}, /* 24 */	2251	{8, 1, -1}, /* 24 */
2230	{24,9,10}, /* 25 */	2252	{24, 9, 10}, /* 25 */
2231	{9,10,-1}, /* 26 */	2253	{9, 10, -1}, /* 26 */
2232	{10,11,-1}, /* 27 */	2254	{10, 11, -1}, /* 27 */
2233	{27,11,29}, /* 28 */	2255	{27, 11, 29}, /* 28 */
2234	{11,12,-1}, /* 29 */	2256	{11, 12, -1}, /* 29 */
2235	{12,13,-1}, /* 30 */	2257	{12, 13, -1}, /* 30 */
2236	{12,13,14}, /* 31 */	2258	{12, 13, 14}, /* 31 */
2237	{13,14,-1}, /* 32 */	2259	{13, 14, -1}, /* 32 */
2238	{14,15,-1}, /* 33 */	2260	{14, 15, -1}, /* 33 */
2239	{33,15,35}, /* 34 */	2261	{33, 15, 35}, /* 34 */
2240	{16,15,-1}, /* 35 */	2262	{16, 15, -1}, /* 35 */
2241	{17,16,-1}, /* 36 */	2263	{17, 16, -1}, /* 36 */
2242	{18,17,16}, /* 37 */	2264	{18, 17, 16}, /* 37 */
2243	{18,17,-1}, /* 38 */	2265	{18, 17, -1}, /* 38 */
2244	{18,19,-1}, /* 39 */	2266	{18, 19, -1}, /* 39 */
2245	{41,19,39}, /* 40 */	2267	{41, 19, 39}, /* 40 */
2246	{19,20,-1}, /* 41 */	2268	{19, 20, -1}, /* 41 */
2247	{20,21,-1}, /* 42 */	2269	{20, 21, -1}, /* 42 */
2248	{20,21,22}, /* 43 */	2270	{20, 21, 22}, /* 43 */
2249	{21,22,-1}, /* 44 */	2271	{21, 22, -1}, /* 44 */
2250	{23,22,-1}, /* 45 */	2272	{23, 22, -1}, /* 45 */
2251	{45,47,23}, /* 46 */	2273	{45, 47, 23}, /* 46 */
2252	{23,24,-1}, /* 47 */	2274	{23, 24, -1}, /* 47 */
2253	{24,9,-1}}; /* 48 */	2275	{24, 9, -1}
		2276	}; /* 48 */
2254		2277
2255	/* Recursive routine to step back and see if we can	2278	/* Recursive routine to step back and see if we can
2256	* find a path to that monster that we found. If not,	2279	* find a path to that monster that we found. If not,
2257	* we don't bother going toward it. Returns 1 if we	2280	* we don't bother going toward it. Returns 1 if we
2258	* can see a direct way to get it	2281	* can see a direct way to get it
2259	* Modified to be map tile aware -.MSW	2282	* Modified to be map tile aware -.MSW
2260	*/	2283	*/
2261		2284	int
2262
2263	int can_see_monsterP(mapstruct *m, int x, int y,int dir) {	2285	can_see_monsterP (maptile *m, int x, int y, int dir)
		2286	{
2264	sint16 dx, dy;	2287	sint16 dx, dy;
2265	int mflags;	2288	int mflags;
2266		2289
		2290	if (dir < 0)
2267	if(dir<0) return 0; /* exit condition: invalid direction */	2291	return 0; /* exit condition: invalid direction */
2268		2292
2269	dx = x + freearr_x[dir];	2293	dx = x + freearr_x[dir];
2270	dy = y + freearr_y[dir];	2294	dy = y + freearr_y[dir];
2271		2295
2272	mflags = get_map_flags(m, &m, dx, dy, &dx, &dy);	2296	mflags = get_map_flags (m, &m, dx, dy, &dx, &dy);
2273		2297
2274	/* This functional arguably was incorrect before - it was	2298	/* This functional arguably was incorrect before - it was
2275	* checking for P_WALL - that was basically seeing if	2299	* checking for P_WALL - that was basically seeing if
2276	* we could move to the monster - this is being more	2300	* we could move to the monster - this is being more
2277	* literal on if we can see it. To know if we can actually	2301	* 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	2302	* move to the monster, we'd need the monster passed in or
2279	* at least its move type.	2303	* at least its move type.
2280	*/	2304	*/
2281	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW)) return 0;	2305	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW))
		2306	return 0;
2282		2307
2283	/* yes, can see. */	2308	/* yes, can see. */
2284	if(dir < 9) return 1;	2309	if (dir < 9)
		2310	return 1;
		2311
2285	return can_see_monsterP(m, x, y, reduction_dir[dir][0]) |	2312	return can_see_monsterP (m, x, y, reduction_dir[dir][0])
2286	can_see_monsterP(m,x,y, reduction_dir[dir][1]) |	2313	| can_see_monsterP (m, x, y, reduction_dir[dir][1])
2287	can_see_monsterP(m,x,y, reduction_dir[dir][2]);	2314	| can_see_monsterP (m, x, y, reduction_dir[dir][2]);
2288	}	2315	}
2289		2316
2290
2291
2292	/*	2317	/*
2293	* can_pick(picker, item): finds out if an object is possible to be	2318	* 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	2319	* picked up by the picker. Returnes 1 if it can be
2295	* picked up, otherwise 0.	2320	* picked up, otherwise 0.
2296	*	2321	*
…		…
2298	* core dumps if they do.	2323	* core dumps if they do.
2299	*	2324	*
2300	* Add a check so we can't pick up invisible objects (0.93.8)	2325	* Add a check so we can't pick up invisible objects (0.93.8)
2301	*/	2326	*/
2302		2327
		2328	int
2303	int can_pick(const object *who, const object *item) {	2329	can_pick (const object *who, const object *item)
		2330	{
2304	return /*QUERY_FLAG(who,FLAG_WIZ)||*/	2331	return /*QUERY_FLAG(who,FLAG_WIZ)|| */
2305	(item->weight>0&&!QUERY_FLAG(item,FLAG_NO_PICK)&&	2332	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&
2306	!QUERY_FLAG(item,FLAG_ALIVE)&&!item->invisible &&	2333	!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	}	2334	}
2309
2310		2335
2311	/*	2336	/*
2312	* create clone from object to another	2337	* create clone from object to another
2313	*/	2338	*/
		2339	object *
2314	object *object_create_clone (object *asrc) {	2340	object_create_clone (object *asrc)
		2341	{
2315	object *dst = NULL,*tmp,*src,*part,*prev, *item;	2342	object *dst = 0, *tmp, *src, *part, *prev, *item;
2316		2343
2317	if(!asrc) return NULL;	2344	if (!asrc)
		2345	return 0;
		2346
2318	src = asrc;	2347	src = asrc;
2319	if(src->head)	2348	if (src->head)
2320	src = src->head;	2349	src = src->head;
2321		2350
2322	prev = NULL;	2351	prev = 0;
2323	for(part = src; part; part = part->more) {	2352	for (part = src; part; part = part->more)
2324	tmp = get_object();	2353	{
2325	copy_object(part,tmp);	2354	tmp = part->clone ();
2326	tmp->x -= src->x;	2355	tmp->x -= src->x;
2327	tmp->y -= src->y;	2356	tmp->y -= src->y;
		2357
2328	if(!part->head) {	2358	if (!part->head)
		2359	{
2329	dst = tmp;	2360	dst = tmp;
2330	tmp->head = NULL;
2331	} else {
2332	tmp->head = dst;	2361	tmp->head = 0;
2333	}	2362	}
		2363	else
		2364	tmp->head = dst;
		2365
2334	tmp->more = NULL;	2366	tmp->more = 0;
		2367
2335	if(prev)	2368	if (prev)
2336	prev->more = tmp;	2369	prev->more = tmp;
		2370
2337	prev = tmp;	2371	prev = tmp;
2338	}	2372	}
2339	/*** copy inventory ***/	2373
2340	for(item = src->inv; item; item = item->below) {	2374	for (item = src->inv; item; item = item->below)
2341	(void) insert_ob_in_ob(object_create_clone(item),dst);	2375	insert_ob_in_ob (object_create_clone (item), dst);
2342	}
2343		2376
2344	return dst;	2377	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	}	2378	}
2354		2379
2355	/* GROS - Creates an object using a string representing its content. */	2380	/* 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 */	2381	/* 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, */	2382	/* 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. */	2383	/* 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. */	2384	/* Remember not to use load_object_str in a time-critical situation. */
2360	/* Also remember that multiparts objects are not supported for now. */	2385	/* Also remember that multiparts objects are not supported for now. */
2361		2386	object *
2362	object* load_object_str(const char *obstr)	2387	load_object_str (const char *obstr)
2363	{	2388	{
2364	object *op;	2389	object *op;
2365	char filename[MAX_BUF];	2390	char filename[MAX_BUF];
		2391
2366	sprintf(filename,"%s/cfloadobstr2044",settings.tmpdir);	2392	sprintf (filename, "%s/cfloadobstr2044", settings.tmpdir);
2367		2393
2368	FILE *tempfile=fopen(filename,"w");	2394	FILE *tempfile = fopen (filename, "w");
		2395
2369	if (tempfile == NULL)	2396	if (tempfile == NULL)
2370	{	2397	{
2371	LOG(llevError,"Error - Unable to access load object temp file\n");	2398	LOG (llevError, "Error - Unable to access load object temp file\n");
2372	return NULL;	2399	return NULL;
2373	};	2400	}
		2401
2374	fprintf(tempfile,obstr);	2402	fprintf (tempfile, obstr);
2375	fclose(tempfile);	2403	fclose (tempfile);
2376		2404
2377	op=get_object();	2405	op = object::create ();
2378		2406
2379	object_thawer thawer (filename);	2407	object_thawer thawer (filename);
2380		2408
2381	if (thawer)	2409	if (thawer)
2382	load_object(thawer,op,0);	2410	load_object (thawer, op, 0);
2383		2411
2384	LOG(llevDebug," load str completed, object=%s\n", &op->name);	2412	LOG (llevDebug, " load str completed, object=%s\n", &op->name);
2385	CLEAR_FLAG(op,FLAG_REMOVED);	2413	CLEAR_FLAG (op, FLAG_REMOVED);
2386		2414
2387	return op;	2415	return op;
2388	}	2416	}
2389		2417
2390	/* This returns the first object in who's inventory that	2418	/* This returns the first object in who's inventory that
2391	* has the same type and subtype match.	2419	* has the same type and subtype match.
2392	* returns NULL if no match.	2420	* returns NULL if no match.
2393	*/	2421	*/
		2422	object *
2394	object *find_obj_by_type_subtype(const object *who, int type, int subtype)	2423	find_obj_by_type_subtype (const object *who, int type, int subtype)
2395	{	2424	{
2396	object *tmp;
2397
2398	for (tmp=who->inv; tmp; tmp=tmp->below)	2425	for (object *tmp = who->inv; tmp; tmp = tmp->below)
2399	if (tmp->type == type && tmp->subtype == subtype) return tmp;	2426	if (tmp->type == type && tmp->subtype == subtype)
		2427	return tmp;
2400		2428
2401	return NULL;	2429	return 0;
2402	}	2430	}
2403		2431
2404	/* If ob has a field named key, return the link from the list,	2432	/* If ob has a field named key, return the link from the list,
2405	* otherwise return NULL.	2433	* otherwise return NULL.
2406	*	2434	*
2407	* key must be a passed in shared string - otherwise, this won't	2435	* key must be a passed in shared string - otherwise, this won't
2408	* do the desired thing.	2436	* do the desired thing.
2409	*/	2437	*/
		2438	key_value *
2410	key_value * get_ob_key_link(const object * ob, const char * key) {	2439	get_ob_key_link (const object *ob, const char *key)
2411	key_value * link;	2440	{
2412
2413	for (link = ob->key_values; link != NULL; link = link->next) {	2441	for (key_value *link = ob->key_values; link; link = link->next)
2414	if (link->key == key) {	2442	if (link->key == key)
2415	return link;	2443	return link;
2416	}	2444
2417	}	2445	return 0;
2418		2446	}
2419	return NULL;
2420	}
2421		2447
2422	/*	2448	/*
2423	* Returns the value of op has an extra_field for key, or NULL.	2449	* Returns the value of op has an extra_field for key, or NULL.
2424	*	2450	*
2425	* The argument doesn't need to be a shared string.	2451	* The argument doesn't need to be a shared string.
2426	*	2452	*
2427	* The returned string is shared.	2453	* The returned string is shared.
2428	*/	2454	*/
		2455	const char *
2429	const char * get_ob_key_value(const object * op, const char * const key) {	2456	get_ob_key_value (const object *op, const char *const key)
		2457	{
2430	key_value * link;	2458	key_value *link;
2431	const char * canonical_key;	2459	shstr_cmp canonical_key (key);
		2460
		2461	if (!canonical_key)
2432		2462	{
2433	canonical_key = shstr::find (key);
2434
2435	if (canonical_key == NULL) {
2436	/* 1. There being a field named key on any object	2463	/* 1. There being a field named key on any object
2437	* implies there'd be a shared string to find.	2464	* implies there'd be a shared string to find.
2438	* 2. Since there isn't, no object has this field.	2465	* 2. Since there isn't, no object has this field.
2439	* 3. Therefore, *this* object doesn't have this field.	2466	* 3. Therefore, *this* object doesn't have this field.
2440	*/	2467	*/
2441	return NULL;	2468	return 0;
2442	}	2469	}
2443		2470
2444	/* This is copied from get_ob_key_link() above -	2471	/* This is copied from get_ob_key_link() above -
2445	* only 4 lines, and saves the function call overhead.	2472	* only 4 lines, and saves the function call overhead.
2446	*/	2473	*/
2447	for (link = op->key_values; link != NULL; link = link->next) {	2474	for (link = op->key_values; link; link = link->next)
2448	if (link->key == canonical_key) {	2475	if (link->key == canonical_key)
2449	return link->value;	2476	return link->value;
2450	}	2477
2451	}	2478	return 0;
2452	return NULL;
2453	}	2479	}
2454		2480
2455		2481
2456	/*	2482	/*
2457	* Updates the canonical_key in op to value.	2483	* 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	2487	* Unless add_key is TRUE, it won't add fields, only change the value of existing
2462	* keys.	2488	* keys.
2463	*	2489	*
2464	* Returns TRUE on success.	2490	* Returns TRUE on success.
2465	*/	2491	*/
		2492	int
2466	int set_ob_key_value_s(object * op, const shstr &canonical_key, const char * value, int add_key) {	2493	set_ob_key_value_s (object *op, const shstr & canonical_key, const char *value, int add_key)
		2494	{
2467	key_value * field = NULL, *last=NULL;	2495	key_value *field = NULL, *last = NULL;
2468		2496
2469	for (field=op->key_values; field != NULL; field=field->next) {	2497	for (field = op->key_values; field != NULL; field = field->next)
		2498	{
2470	if (field->key != canonical_key) {	2499	if (field->key != canonical_key)
		2500	{
2471	last = field;	2501	last = field;
2472	continue;	2502	continue;
2473	}	2503	}
2474		2504
2475	if (value)	2505	if (value)
2476	field->value = value;	2506	field->value = value;
2477	else {	2507	else
		2508	{
2478	/* Basically, if the archetype has this key set,	2509	/* Basically, if the archetype has this key set,
2479	* we need to store the null value so when we save	2510	* we need to store the null value so when we save
2480	* it, we save the empty value so that when we load,	2511	* it, we save the empty value so that when we load,
2481	* we get this value back again.	2512	* we get this value back again.
2482	*/	2513	*/
2483	if (get_ob_key_link (&op->arch->clone, canonical_key))	2514	if (get_ob_key_link (&op->arch->clone, canonical_key))
2484	field->value = 0;	2515	field->value = 0;
		2516	else
		2517	{
		2518	if (last)
		2519	last->next = field->next;
2485	else	2520	else
2486	{
2487	if (last) last->next = field->next;
2488	else op->key_values = field->next;	2521	op->key_values = field->next;
2489		2522
2490	delete field;	2523	delete field;
2491	}	2524	}
2492	}	2525	}
2493	return TRUE;	2526	return TRUE;
2494	}	2527	}
2495	/* IF we get here, key doesn't exist */	2528	/* IF we get here, key doesn't exist */
2496		2529
2497	/* No field, we'll have to add it. */	2530	/* No field, we'll have to add it. */
2498		2531
2499	if (!add_key) {	2532	if (!add_key)
2500	return FALSE;	2533	return FALSE;
2501	}	2534
2502	/* There isn't any good reason to store a null	2535	/* There isn't any good reason to store a null
2503	* value in the key/value list. If the archetype has	2536	* value in the key/value list. If the archetype has
2504	* this key, then we should also have it, so shouldn't	2537	* this key, then we should also have it, so shouldn't
2505	* be here. If user wants to store empty strings,	2538	* be here. If user wants to store empty strings,
2506	* should pass in ""	2539	* should pass in ""
2507	*/	2540	*/
2508	if (value == NULL) return TRUE;	2541	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;	2542	return TRUE;
		2543
		2544	field = new key_value;
		2545
		2546	field->key = canonical_key;
		2547	field->value = value;
		2548	/* Usual prepend-addition. */
		2549	field->next = op->key_values;
		2550	op->key_values = field;
		2551
		2552	return TRUE;
2519	}	2553	}
2520		2554
2521	/*	2555	/*
2522	* Updates the key in op to value.	2556	* Updates the key in op to value.
2523	*	2557	*
…		…
2525	* and not add new ones.	2559	* and not add new ones.
2526	* In general, should be little reason FALSE is ever passed in for add_key	2560	* In general, should be little reason FALSE is ever passed in for add_key
2527	*	2561	*
2528	* Returns TRUE on success.	2562	* Returns TRUE on success.
2529	*/	2563	*/
		2564	int
2530	int set_ob_key_value(object * op, const char *key, const char * value, int add_key)	2565	set_ob_key_value (object *op, const char *key, const char *value, int add_key)
2531	{	2566	{
2532	shstr key_ (key);	2567	shstr key_ (key);
		2568
2533	return set_ob_key_value_s (op, key_, value, add_key);	2569	return set_ob_key_value_s (op, key_, value, add_key);
2534	}	2570	}
		2571
		2572	object::depth_iterator::depth_iterator (object *container)
		2573	: iterator_base (container)
		2574	{
		2575	while (item->inv)
		2576	item = item->inv;
		2577	}
		2578
		2579	void
		2580	object::depth_iterator::next ()
		2581	{
		2582	if (item->below)
		2583	{
		2584	item = item->below;
		2585
		2586	while (item->inv)
		2587	item = item->inv;
		2588	}
		2589	else
		2590	item = item->env;
		2591	}
		2592
		2593	// return a suitable string describing an objetc in enough detail to find it
		2594	const char *
		2595	object::debug_desc (char *info) const
		2596	{
		2597	char info2[256 * 3];
		2598	char *p = info;
		2599
		2600	p += snprintf (p, 256, "%d=\"%s%s%s\"",
		2601	count,
		2602	&name,
		2603	title ? " " : "",
		2604	title ? (const char *)title : "");
		2605
		2606	if (env)
		2607	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));
		2608
		2609	if (map)
		2610	p += snprintf (p, 256, "(on %s@%d+%d)", map->path, x, y);
		2611
		2612	return info;
		2613	}
		2614
		2615	const char *
		2616	object::debug_desc () const
		2617	{
		2618	static char info[256 * 3];
		2619	return debug_desc (info);
		2620	}
		2621

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