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Comparing deliantra/server/common/object.C (file contents):
Revision 1.23 by root, Sun Sep 10 14:54:02 2006 UTC vs.
Revision 1.68 by root, Mon Dec 18 02:35:00 2006 UTC

1	/*
2	* static char *rcsid_object_c =
3	* "$Id: object.C,v 1.23 2006/09/10 14:54:02 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	};
		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	}
59		133
60	/* 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
61	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	{
62	key_value * wants_field;	138	key_value *wants_field;
63		139
64	/* 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
65	* 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
66	* different structure or at least keep the lists sorted...	142	* different structure or at least keep the lists sorted...
67	*/	143	*/
68		144
69	/* For each field in wants, */	145	/* For each field in wants, */
70	for (wants_field = wants->key_values; wants_field != NULL; wants_field = wants_field->next) {	146	for (wants_field = wants->key_values; wants_field != NULL; wants_field = wants_field->next)
		147	{
71	key_value * has_field;	148	key_value *has_field;
72		149
73	/* Look for a field in has with the same key. */	150	/* Look for a field in has with the same key. */
74	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)
75		154	{
76	if (has_field == NULL) {
77	/* No field with that name. */	155	/* No field with that name. */
78	return FALSE;	156	return FALSE;
79	}
80		157	}
		158
81	/* Found the matching field. */	159	/* Found the matching field. */
82	if (has_field->value != wants_field->value) {	160	if (has_field->value != wants_field->value)
		161	{
83	/* 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. */
84	return FALSE;	163	return FALSE;
85	}	164	}
86		165
87	/* 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. */
88	}
89		167	}
		168
90	/* 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. */
91	return TRUE;	170	return TRUE;
92	}	171	}
93		172
94	/* 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
95	static int compare_ob_value_lists(const object * ob1, const object * ob2) {	175	compare_ob_value_lists (const object *ob1, const object *ob2)
		176	{
96	/* 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,
97	* so we need to run the comparison *twice*. :(	178	* so we need to run the comparison *twice*. :(
98	*/	179	*/
99	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);
100	}	181	}
101		182
102	/* 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
103	* they can be merged together.	184	* they can be merged together.
104	*	185	*
105	* 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
106	* replaces - this is mostly for clarity - a decent compiler should hopefully	187	* replaces - this is mostly for clarity - a decent compiler should hopefully
107	* reduce this to the same efficiency.	188	* reduce this to the same efficiency.
108	*	189	*
109	* Check nrof variable *before* calling CAN_MERGE()	190	* Check nrof variable *before* calling can_merge()
110	*	191	*
111	* Improvements made with merge: Better checking on potion, and also	192	* Improvements made with merge: Better checking on potion, and also
112	* check weight	193	* check weight
113	*/	194	*/
114		195
115	bool
116	object::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))	199	if (ob1 == ob2
		200	|| ob1->type != ob2->type
		201	|| ob1->speed != ob2->speed
		202	|| ob1->value != ob2->value
		203	|| ob1->name != ob2->name)
120	return 0;	204	return 0;
121		205
122	if (ob1->speed != ob2->speed)	206	//TODO: this ain't working well, use nicer and correct overflow check
123	return 0;
124
125	/* Do not merge objects if nrof would overflow. We use 1UL<<31 since that	207	/* Do not merge objects if nrof would overflow. We use 1UL<<31 since that
126	* value could not be stored in a sint32 (which unfortunately sometimes is	208	* value could not be stored in a sint32 (which unfortunately sometimes is
127	* used to store nrof).	209	* used to store nrof).
128	*/	210	*/
129	if (ob1->nrof + ob2->nrof >= 1UL << 31)	211	if (ob1->nrof + ob2->nrof >= 1UL << 31)
…		…
140		222
141	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))	223	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))
142	SET_FLAG (ob2, FLAG_BEEN_APPLIED);	224	SET_FLAG (ob2, FLAG_BEEN_APPLIED);
143		225
144		226
145	/* the 0x400000 on flags2 is FLAG_INV_LOCK. I don't think something	227	if ((ob1->flags ^ ob2->flags).reset (FLAG_INV_LOCKED).reset (FLAG_CLIENT_SENT).any ()
146	* being locked in inventory should prevent merging.	228	|| ob1->arch != ob2->arch
147	* 0x4 in flags3 is CLIENT_SENT
148	*/
149	if ((ob1->arch != ob2->arch) ||
150	(ob1->flags[0] != ob2->flags[0]) ||
151	(ob1->flags[1] != ob2->flags[1]) ||
152	((ob1->flags[2] & ~0x400000) != (ob2->flags[2] & ~0x400000)) ||
153	((ob1->flags[3] & ~0x4) != (ob2->flags[3] & ~0x4)) ||
154	(ob1->name != ob2->name) ||	229	|| ob1->name != ob2->name
155	(ob1->title != ob2->title) ||	230	|| ob1->title != ob2->title
156	(ob1->msg != ob2->msg) ||	231	|| ob1->msg != ob2->msg
157	(ob1->weight != ob2->weight) ||	232	|| ob1->weight != ob2->weight
158	(memcmp (&ob1->resist, &ob2->resist, sizeof (ob1->resist)) != 0) ||	233	|| memcmp (&ob1->resist, &ob2->resist, sizeof (ob1->resist))
159	(memcmp (&ob1->stats, &ob2->stats, sizeof (ob1->stats)) != 0) ||	234	|| memcmp (&ob1->stats , &ob2->stats , sizeof (ob1->stats) )
160	(ob1->attacktype != ob2->attacktype) ||	235	|| ob1->attacktype != ob2->attacktype
161	(ob1->magic != ob2->magic) ||	236	|| ob1->magic != ob2->magic
162	(ob1->slaying != ob2->slaying) ||	237	|| ob1->slaying != ob2->slaying
163	(ob1->skill != ob2->skill) ||	238	|| ob1->skill != ob2->skill
164	(ob1->value != ob2->value) ||	239	|| ob1->value != ob2->value
165	(ob1->animation_id != ob2->animation_id) ||	240	|| ob1->animation_id != ob2->animation_id
166	(ob1->client_type != ob2->client_type) ||	241	|| ob1->client_type != ob2->client_type
167	(ob1->materialname != ob2->materialname) ||	242	|| ob1->materialname != ob2->materialname
168	(ob1->lore != ob2->lore) ||	243	|| ob1->lore != ob2->lore
169	(ob1->subtype != ob2->subtype) ||	244	|| ob1->subtype != ob2->subtype
170	(ob1->move_type != ob2->move_type) ||	245	|| ob1->move_type != ob2->move_type
171	(ob1->move_block != ob2->move_block) ||	246	|| ob1->move_block != ob2->move_block
172	(ob1->move_allow != ob2->move_allow) ||	247	|| ob1->move_allow != ob2->move_allow
173	(ob1->move_on != ob2->move_on) ||	248	|| ob1->move_on != ob2->move_on
174	(ob1->move_off != ob2->move_off) ||	249	|| ob1->move_off != ob2->move_off
175	(ob1->move_slow != ob2->move_slow) ||	250	|| ob1->move_slow != ob2->move_slow
176	(ob1->move_slow_penalty != ob2->move_slow_penalty))	251	|| ob1->move_slow_penalty != ob2->move_slow_penalty)
177	return 0;	252	return 0;
178		253
179	/* This is really a spellbook check - really, we should	254	/* This is really a spellbook check - really, we should
180	* check all objects in the inventory.	255	* check all objects in the inventory.
181	*/	256	*/
182	if (ob1->inv || ob2->inv)	257	if (ob1->inv || ob2->inv)
183	{	258	{
184	/* if one object has inventory but the other doesn't, not equiv */	259	/* if one object has inventory but the other doesn't, not equiv */
185	if ((ob1->inv && !ob2->inv) || (ob2->inv && !ob1->inv))	260	if ((ob1->inv && !ob2->inv) || (ob2->inv && !ob1->inv))
186	return 0;	261	return 0;
187		262
188	/* Now check to see if the two inventory objects could merge */	263	/* Now check to see if the two inventory objects could merge */
189	if (!CAN_MERGE (ob1->inv, ob2->inv))	264	if (!object::can_merge (ob1->inv, ob2->inv))
190	return 0;	265	return 0;
191		266
192	/* inventory ok - still need to check rest of this object to see	267	/* inventory ok - still need to check rest of this object to see
193	* if it is valid.	268	* if it is valid.
194	*/	269	*/
195	}	270	}
…		…
203		278
204	/* Note sure why the following is the case - either the object has to	279	/* Note sure why the following is the case - either the object has to
205	* be animated or have a very low speed. Is this an attempted monster	280	* be animated or have a very low speed. Is this an attempted monster
206	* check?	281	* check?
207	*/	282	*/
208	if (!QUERY_FLAG (ob1, FLAG_ANIMATE)	283	if (!QUERY_FLAG (ob1, FLAG_ANIMATE) && FABS ((ob1)->speed) > MIN_ACTIVE_SPEED)
209	&& FABS ((ob1)->speed) > MIN_ACTIVE_SPEED)
210	return 0;	284	return 0;
211		285
212	switch (ob1->type)	286	switch (ob1->type)
213	{	287	{
214	case SCROLL:	288	case SCROLL:
215	if (ob1->level != ob2->level)	289	if (ob1->level != ob2->level)
216	return 0;	290	return 0;
217	break;	291	break;
218	}	292	}
219		293
220	if (ob1->key_values != NULL || ob2->key_values != NULL)	294	if (ob1->key_values != NULL || ob2->key_values != NULL)
221	{	295	{
222	/* At least one of these has key_values. */	296	/* At least one of these has key_values. */
223	if ((ob1->key_values == NULL) != (ob2->key_values == NULL))	297	if ((ob1->key_values == NULL) != (ob2->key_values == NULL))
224	/* One has fields, but the other one doesn't. */	298	/* One has fields, but the other one doesn't. */
225	return 0;	299	return 0;
226	else if (!compare_ob_value_lists (ob1, ob2))	300	else if (!compare_ob_value_lists (ob1, ob2))
227	return 0;	301	return 0;
228	}	302	}
229		303
230	//TODO: generate an event or call into perl for additional checks	304	//TODO: generate an event or call into perl for additional checks
231	if (ob1->self || ob2->self)	305	if (ob1->self || ob2->self)
232	{	306	{
233	ob1->optimise ();	307	ob1->optimise ();
234	ob2->optimise ();	308	ob2->optimise ();
235		309
236	if (ob1->self || ob2->self)	310	if (ob1->self || ob2->self)
237	return 0;	311	return 0;
238	}	312	}
239		313
240	/* Everything passes, must be OK. */	314	/* Everything passes, must be OK. */
241	return 1;	315	return 1;
242	}	316	}
		317
243	/*	318	/*
244	* sum_weight() is a recursive function which calculates the weight	319	* sum_weight() is a recursive function which calculates the weight
245	* an object is carrying. It goes through in figures out how much	320	* an object is carrying. It goes through in figures out how much
246	* containers are carrying, and sums it up.	321	* containers are carrying, and sums it up.
247	*/	322	*/
248	signed long sum_weight(object *op) {	323	long
		324	sum_weight (object *op)
		325	{
249	signed long sum;	326	long sum;
250	object *inv;	327	object *inv;
		328
251	for(sum = 0, inv = op->inv; inv != NULL; inv = inv->below) {	329	for (sum = 0, inv = op->inv; inv != NULL; inv = inv->below)
		330	{
252	if (inv->inv)	331	if (inv->inv)
253	sum_weight(inv);	332	sum_weight (inv);
254	sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1);	333	sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1);
255	}	334	}
		335
256	if (op->type == CONTAINER && op->stats.Str)	336	if (op->type == CONTAINER && op->stats.Str)
257	sum = (sum * (100 - op->stats.Str))/100;	337	sum = (sum * (100 - op->stats.Str)) / 100;
		338
258	if(op->carrying != sum)	339	if (op->carrying != sum)
259	op->carrying = sum;	340	op->carrying = sum;
		341
260	return sum;	342	return sum;
261	}	343	}
262		344
263	/**	345	/**
264	* Return the outermost environment object for a given object.	346	* Return the outermost environment object for a given object.
265	*/	347	*/
266		348
		349	object *
267	object *object_get_env_recursive (object *op) {	350	object_get_env_recursive (object *op)
		351	{
268	while (op->env != NULL)	352	while (op->env != NULL)
269	op = op->env;	353	op = op->env;
270	return op;	354	return op;
271	}	355	}
272		356
273	/*	357	/*
274	* Eneq(@csd.uu.se): Since we can have items buried in a character we need	358	* Eneq(@csd.uu.se): Since we can have items buried in a character we need
275	* a better check. We basically keeping traversing up until we can't	359	* a better check. We basically keeping traversing up until we can't
276	* or find a player.	360	* or find a player.
277	*/	361	*/
278		362
		363	object *
279	object *is_player_inv (object *op) {	364	is_player_inv (object *op)
		365	{
280	for (;op!=NULL&&op->type!=PLAYER; op=op->env)	366	for (; op != NULL && op->type != PLAYER; op = op->env)
281	if (op->env==op)	367	if (op->env == op)
282	op->env = NULL;	368	op->env = NULL;
283	return op;	369	return op;
284	}	370	}
285		371
286	/*	372	/*
287	* Used by: Crossedit: dump. Server DM commands: dumpbelow, dump.	373	* Used by: Crossedit: dump. Server DM commands: dumpbelow, dump.
288	* Some error messages.	374	* Some error messages.
289	* The result of the dump is stored in the static global errmsg array.	375	* The result of the dump is stored in the static global errmsg array.
290	*/	376	*/
291		377
292	void dump_object2(object *op) {	378	char *
293	errmsg[0] = 0;
294	return;
295	//TODO//D#d#
296	#if 0
297	char *cp;
298	/* object *tmp;*/
299
300	if(op->arch!=NULL) {
301	strcat(errmsg,"arch ");
302	strcat(errmsg,op->arch->name?op->arch->name:"(null)");
303	strcat(errmsg,"\n");
304	if((cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)
305	strcat(errmsg,cp);
306	#if 0
307	/* Don't dump player diffs - they are too long, mostly meaningless, and
308	* will overflow the buffer.
309	* Changed so that we don't dump inventory either. This may
310	* also overflow the buffer.
311	*/
312	if(op->type!=PLAYER && (cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)
313	strcat(errmsg,cp);
314	for (tmp=op->inv; tmp; tmp=tmp->below)
315	dump_object2(tmp);
316	#endif
317	strcat(errmsg,"end\n");
318	} else {
319	strcat(errmsg,"Object ");
320	if (op->name==NULL) strcat(errmsg, "(null)");
321	else strcat(errmsg,op->name);
322	strcat(errmsg,"\n");
323	#if 0
324	if((cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)
325	strcat(errmsg,cp);
326	for (tmp=op->inv; tmp; tmp=tmp->below)
327	dump_object2(tmp);
328	#endif
329	strcat(errmsg,"end\n");
330	}
331	#endif
332	}
333
334	/*
335	* Dumps an object. Returns output in the static global errmsg array.
336	*/
337
338	void dump_object(object *op) {	379	dump_object (object *op)
339	if(op==NULL) {	380	{
340	strcpy(errmsg,"[NULL pointer]");	381	if (!op)
341	return;	382	return strdup ("[NULLOBJ]");
342	}
343	errmsg[0]='\0';
344	dump_object2(op);
345	}
346		383
347	void dump_all_objects(void) {	384	object_freezer freezer;
348	object *op;	385	save_object (freezer, op, 3);
349	for(op=objects;op!=NULL;op=op->next) {	386	return freezer.as_string ();
350	dump_object(op);
351	fprintf(logfile, "Object %d\n:%s\n", op->count, errmsg);
352	}
353	}	387	}
354		388
355	/*	389	/*
356	* get_nearest_part(multi-object, object 2) returns the part of the	390	* get_nearest_part(multi-object, object 2) returns the part of the
357	* multi-object 1 which is closest to the second object.	391	* multi-object 1 which is closest to the second object.
358	* If it's not a multi-object, it is returned.	392	* If it's not a multi-object, it is returned.
359	*/	393	*/
360		394
		395	object *
361	object *get_nearest_part(object *op, const object *pl) {	396	get_nearest_part (object *op, const object *pl)
		397	{
362	object *tmp,*closest;	398	object *tmp, *closest;
363	int last_dist,i;	399	int last_dist, i;
		400
364	if(op->more==NULL)	401	if (op->more == NULL)
365	return op;	402	return op;
366	for(last_dist=distance(op,pl),closest=op,tmp=op->more;tmp!=NULL;tmp=tmp->more)	403	for (last_dist = distance (op, pl), closest = op, tmp = op->more; tmp != NULL; tmp = tmp->more)
367	if((i=distance(tmp,pl))<last_dist)	404	if ((i = distance (tmp, pl)) < last_dist)
368	closest=tmp,last_dist=i;	405	closest = tmp, last_dist = i;
369	return closest;	406	return closest;
370	}	407	}
371		408
372	/*	409	/*
373	* Returns the object which has the count-variable equal to the argument.	410	* Returns the object which has the count-variable equal to the argument.
374	*/	411	*/
375		412
		413	object *
376	object *find_object(tag_t i) {	414	find_object (tag_t i)
377	object *op;	415	{
378	for(op=objects;op!=NULL;op=op->next)	416	for (object *op = object::first; op; op = op->next)
379	if(op->count==i)	417	if (op->count == i)
380	break;	418	return op;
		419
381	return op;	420	return 0;
382	}	421	}
383		422
384	/*	423	/*
385	* Returns the first object which has a name equal to the argument.	424	* Returns the first object which has a name equal to the argument.
386	* Used only by the patch command, but not all that useful.	425	* Used only by the patch command, but not all that useful.
387	* Enables features like "patch <name-of-other-player> food 999"	426	* Enables features like "patch <name-of-other-player> food 999"
388	*/	427	*/
389		428
		429	object *
390	object *find_object_name(const char *str) {	430	find_object_name (const char *str)
391	const char *name = shstr::find (str);	431	{
		432	shstr_cmp str_ (str);
392	object *op;	433	object *op;
		434
393	for(op=objects;op!=NULL;op=op->next)	435	for (op = object::first; op != NULL; op = op->next)
394	if(&op->name == name)	436	if (op->name == str_)
395	break;	437	break;
396		438
397	return op;	439	return op;
398	}	440	}
399		441
		442	void
400	void free_all_object_data ()	443	free_all_object_data ()
401	{	444	{
402	LOG (llevDebug, "%d allocated objects\n", nrofallocobjects);	445	LOG (llevDebug, "%d allocated objects\n", nrofallocobjects);
403	}
404
405	/*
406	* Returns the object which this object marks as being the owner.
407	* A id-scheme is used to avoid pointing to objects which have been
408	* freed and are now reused. If this is detected, the owner is
409	* set to NULL, and NULL is returned.
410	* Changed 2004-02-12 - if the player is setting at the play again
411	* prompt, he is removed, and we don't want to treat him as an owner of
412	* anything, so check removed flag. I don't expect that this should break
413	* anything - once an object is removed, it is basically dead anyways.
414	*/
415
416	object *get_owner(object *op) {
417	if(op->owner==NULL)
418	return NULL;
419
420	if (!QUERY_FLAG(op->owner,FLAG_FREED) && !QUERY_FLAG(op->owner, FLAG_REMOVED) &&
421	op->owner->count==op->ownercount)
422	return op->owner;
423
424	op->owner=NULL;
425	op->ownercount=0;
426	return NULL;
427	}
428
429	void clear_owner(object *op)
430	{
431	if (!op) return;
432
433	if (op->owner && op->ownercount == op->owner->count)
434	op->owner->refcount--;
435
436	op->owner = NULL;
437	op->ownercount = 0;
438	}	446	}
439		447
440	/*	448	/*
441	* Sets the owner and sets the skill and exp pointers to owner's current	449	* Sets the owner and sets the skill and exp pointers to owner's current
442	* skill and experience objects.	450	* skill and experience objects.
443	*/	451	*/
444	void set_owner (object *op, object *owner)	452	void
		453	object::set_owner (object *owner)
445	{	454	{
446	if(owner==NULL||op==NULL)	455	if (!owner)
447	return;	456	return;
448		457
449	/* next line added to allow objects which own objects */	458	/* next line added to allow objects which own objects */
450	/* Add a check for ownercounts in here, as I got into an endless loop	459	/* Add a check for ownercounts in here, as I got into an endless loop
451	* with the fireball owning a poison cloud which then owned the	460	* with the fireball owning a poison cloud which then owned the
452	* fireball. I believe that was caused by one of the objects getting	461	* fireball. I believe that was caused by one of the objects getting
453	* freed and then another object replacing it. Since the ownercounts	462	* freed and then another object replacing it. Since the ownercounts
454	* didn't match, this check is valid and I believe that cause is valid.	463	* didn't match, this check is valid and I believe that cause is valid.
455	*/	464	*/
456	while (owner->owner && owner!=owner->owner &&	465	while (owner->owner)
457	owner->ownercount==owner->owner->count) owner=owner->owner;	466	owner = owner->owner;
458		467
459	/* IF the owner still has an owner, we did not resolve to a final owner.
460	* so lets not add to that.
461	*/
462	if (owner->owner) return;
463
464	op->owner=owner;	468	this->owner = owner;
465
466	op->ownercount=owner->count;
467	owner->refcount++;
468
469	}
470
471	/* Set the owner to clone's current owner and set the skill and experience
472	* objects to clone's objects (typically those objects that where the owner's
473	* current skill and experience objects at the time when clone's owner was
474	* set - not the owner's current skill and experience objects).
475	*
476	* Use this function if player created an object (e.g. fire bullet, swarm
477	* spell), and this object creates further objects whose kills should be
478	* accounted for the player's original skill, even if player has changed
479	* skills meanwhile.
480	*/
481	void copy_owner (object *op, object *clone)
482	{
483	object *owner = get_owner (clone);
484	if (owner == NULL) {
485	/* players don't have owners - they own themselves. Update
486	* as appropriate.
487	*/
488	if (clone->type == PLAYER) owner=clone;
489	else return;
490	}
491	set_owner(op, owner);
492
493	}	469	}
494		470
495	/* Zero the key_values on op, decrementing the shared-string	471	/* Zero the key_values on op, decrementing the shared-string
496	* refcounts and freeing the links.	472	* refcounts and freeing the links.
497	*/	473	*/
		474	static void
498	static void free_key_values(object * op)	475	free_key_values (object *op)
499	{	476	{
500	for (key_value *i = op->key_values; i != 0; )	477	for (key_value *i = op->key_values; i != 0;)
501	{	478	{
502	key_value *next = i->next;	479	key_value *next = i->next;
503	delete i;	480	delete i;
		481
504	i = next;	482	i = next;
505	}	483	}
506		484
507	op->key_values = 0;	485	op->key_values = 0;
508	}	486	}
509		487
510	void object::clear ()	488	void object::clear ()
511	{	489	{
512	attachable_base::clear ();	490	attachable_base::clear ();
513		491
514	free_key_values (this);	492	free_key_values (this);
515		493
516	name = 0;	494	owner = 0;
		495	name = 0;
517	name_pl = 0;	496	name_pl = 0;
518	title = 0;	497	title = 0;
519	race = 0;	498	race = 0;
520	slaying = 0;	499	slaying = 0;
521	skill = 0;	500	skill = 0;
522	msg = 0;	501	msg = 0;
523	lore = 0;	502	lore = 0;
524	custom_name = 0;	503	custom_name = 0;
525	materialname = 0;	504	materialname = 0;
		505	contr = 0;
		506	below = 0;
		507	above = 0;
		508	inv = 0;
		509	container = 0;
		510	env = 0;
		511	more = 0;
		512	head = 0;
		513	map = 0;
		514	active_next = 0;
		515	active_prev = 0;
526		516
527	memset (static_cast<object_pod *>(this), 0, sizeof (object_pod));	517	memset (static_cast<object_pod *>(this), 0, sizeof (object_pod));
528		518
529	SET_FLAG (this, FLAG_REMOVED);	519	SET_FLAG (this, FLAG_REMOVED);
530	}
531		520
532	void object::clone (object *destination)
533	{
534	*(object_copy *)destination = *this;
535	*(object_pod *)destination = *this;
536
537	if (self || cb)
538	INVOKE_OBJECT (CLONE, this, ARG_OBJECT (destination));
539	}
540
541	/*
542	* clear_object() frees everything allocated by an object, and also
543	* clears all variables and flags to default settings.
544	*/
545
546	void clear_object (object *op)
547	{
548	op->clear ();
549
550	op->contr = NULL;
551	op->below = NULL;
552	op->above = NULL;
553	op->inv = NULL;
554	op->container=NULL;
555	op->env=NULL;
556	op->more=NULL;
557	op->head=NULL;
558	op->map=NULL;
559	op->refcount=0;
560	op->active_next = NULL;
561	op->active_prev = NULL;
562	/* What is not cleared is next, prev, and count */	521	/* What is not cleared is next, prev, and count */
563		522
564	op->expmul = 1.0;	523	expmul = 1.0;
565	op->face = blank_face;	524	face = blank_face;
566	op->attacked_by_count = -1;
567		525
568	if (settings.casting_time)	526	if (settings.casting_time)
569	op->casting_time = -1;	527	casting_time = -1;
570	}	528	}
571		529
572	/*	530	/*
573	* copy object first frees everything allocated by the second object,	531	* copy_to first frees everything allocated by the dst object,
574	* and then copies the contends of the first object into the second	532	* and then copies the contents of itself into the second
575	* object, allocating what needs to be allocated. Basically, any	533	* object, allocating what needs to be allocated. Basically, any
576	* data that is malloc'd needs to be re-malloc/copied. Otherwise,	534	* data that is malloc'd needs to be re-malloc/copied. Otherwise,
577	* if the first object is freed, the pointers in the new object	535	* if the first object is freed, the pointers in the new object
578	* will point at garbage.	536	* will point at garbage.
579	*/	537	*/
580		538	void
581	void copy_object (object *op2, object *op)	539	object::copy_to (object *dst)
582	{	540	{
583	bool is_freed = QUERY_FLAG (op, FLAG_FREED);	541	bool is_freed = QUERY_FLAG (dst, FLAG_FREED);
584	bool is_removed = QUERY_FLAG (op, FLAG_REMOVED);	542	bool is_removed = QUERY_FLAG (dst, FLAG_REMOVED);
585		543
586	op2->clone (op);	544	*(object_copy *)dst = *this;
		545	*(object_pod *)dst = *this;
587		546
588	if (is_freed) SET_FLAG (op, FLAG_FREED);	547	if (self || cb)
589	if (is_removed) SET_FLAG (op, FLAG_REMOVED);	548	INVOKE_OBJECT (CLONE, this, ARG_OBJECT (dst));
590		549
		550	if (is_freed)
		551	SET_FLAG (dst, FLAG_FREED);
		552
		553	if (is_removed)
		554	SET_FLAG (dst, FLAG_REMOVED);
		555
591	if (op2->speed < 0)	556	if (speed < 0)
592	op->speed_left = op2->speed_left - RANDOM() % 200 / 100.0;	557	dst->speed_left = speed_left - RANDOM () % 200 / 100.0;
593		558
594	/* Copy over key_values, if any. */	559	/* Copy over key_values, if any. */
595	if (op2->key_values)	560	if (key_values)
596	{	561	{
597	key_value *tail = 0;	562	key_value *tail = 0;
598	key_value *i;	563	key_value *i;
599		564
600	op->key_values = 0;	565	dst->key_values = 0;
601		566
602	for (i = op2->key_values; i; i = i->next)	567	for (i = key_values; i; i = i->next)
603	{	568	{
604	key_value *new_link = new key_value;	569	key_value *new_link = new key_value;
605		570
606	new_link->next = 0;	571	new_link->next = 0;
607	new_link->key = i->key;	572	new_link->key = i->key;
608	new_link->value = i->value;	573	new_link->value = i->value;
609		574
610	/* Try and be clever here, too. */	575	/* Try and be clever here, too. */
611	if (!op->key_values)	576	if (!dst->key_values)
612	{	577	{
613	op->key_values = new_link;	578	dst->key_values = new_link;
614	tail = new_link;	579	tail = new_link;
615	}	580	}
616	else	581	else
617	{	582	{
618	tail->next = new_link;	583	tail->next = new_link;
619	tail = new_link;	584	tail = new_link;
620	}	585	}
621	}	586	}
622	}	587	}
623		588
624	update_ob_speed (op);	589	update_ob_speed (dst);
		590	}
		591
		592	object *
		593	object::clone ()
		594	{
		595	object *neu = create ();
		596	copy_to (neu);
		597	return neu;
625	}	598	}
626		599
627	/*	600	/*
628	* If an object with the IS_TURNABLE() flag needs to be turned due	601	* If an object with the IS_TURNABLE() flag needs to be turned due
629	* to the closest player being on the other side, this function can	602	* to the closest player being on the other side, this function can
630	* be called to update the face variable, _and_ how it looks on the map.	603	* be called to update the face variable, _and_ how it looks on the map.
631	*/	604	*/
632		605
		606	void
633	void update_turn_face(object *op) {	607	update_turn_face (object *op)
		608	{
634	if(!QUERY_FLAG(op,FLAG_IS_TURNABLE)||op->arch==NULL)	609	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || op->arch == NULL)
635	return;	610	return;
636	SET_ANIMATION(op, op->direction);	611	SET_ANIMATION (op, op->direction);
637	update_object(op,UP_OBJ_FACE);	612	update_object (op, UP_OBJ_FACE);
638	}	613	}
639		614
640	/*	615	/*
641	* Updates the speed of an object. If the speed changes from 0 to another	616	* Updates the speed of an object. If the speed changes from 0 to another
642	* value, or vice versa, then add/remove the object from the active list.	617	* value, or vice versa, then add/remove the object from the active list.
643	* This function needs to be called whenever the speed of an object changes.	618	* This function needs to be called whenever the speed of an object changes.
644	*/	619	*/
645		620	void
646	void update_ob_speed(object *op) {	621	update_ob_speed (object *op)
		622	{
647	extern int arch_init;	623	extern int arch_init;
648		624
649	/* No reason putting the archetypes objects on the speed list,	625	/* No reason putting the archetypes objects on the speed list,
650	* since they never really need to be updated.	626	* since they never really need to be updated.
651	*/	627	*/
652		628
653	if (QUERY_FLAG(op, FLAG_FREED) && op->speed) {	629	if (QUERY_FLAG (op, FLAG_FREED) && op->speed)
		630	{
654	LOG(llevError,"Object %s is freed but has speed.\n", &op->name);	631	LOG (llevError, "Object %s is freed but has speed.\n", &op->name);
655	#ifdef MANY_CORES	632	#ifdef MANY_CORES
656	abort();	633	abort ();
657	#else	634	#else
658	op->speed = 0;	635	op->speed = 0;
659	#endif	636	#endif
660	}	637	}
		638
661	if (arch_init) {	639	if (arch_init)
		640	return;
		641
		642	if (FABS (op->speed) > MIN_ACTIVE_SPEED)
		643	{
		644	/* If already on active list, don't do anything */
		645	if (op->active_next || op->active_prev || op == active_objects)
662	return;	646	return;
663	}
664	if (FABS(op->speed)>MIN_ACTIVE_SPEED) {
665	/* If already on active list, don't do anything */
666	if (op->active_next || op->active_prev || op==active_objects)
667	return;
668		647
669	/* process_events() expects us to insert the object at the beginning	648	/* process_events() expects us to insert the object at the beginning
670	* of the list. */	649	* of the list. */
671	op->active_next = active_objects;	650	op->active_next = active_objects;
		651
672	if (op->active_next!=NULL)	652	if (op->active_next != NULL)
673	op->active_next->active_prev = op;	653	op->active_next->active_prev = op;
		654
674	active_objects = op;	655	active_objects = op;
		656	}
		657	else
675	}	658	{
676	else {
677	/* If not on the active list, nothing needs to be done */	659	/* If not on the active list, nothing needs to be done */
678	if (!op->active_next && !op->active_prev && op!=active_objects)	660	if (!op->active_next && !op->active_prev && op != active_objects)
679	return;	661	return;
680		662
681	if (op->active_prev==NULL) {	663	if (op->active_prev == NULL)
		664	{
682	active_objects = op->active_next;	665	active_objects = op->active_next;
		666
683	if (op->active_next!=NULL)	667	if (op->active_next != NULL)
684	op->active_next->active_prev = NULL;	668	op->active_next->active_prev = NULL;
		669	}
		670	else
685	}	671	{
686	else {
687	op->active_prev->active_next = op->active_next;	672	op->active_prev->active_next = op->active_next;
		673
688	if (op->active_next)	674	if (op->active_next)
689	op->active_next->active_prev = op->active_prev;	675	op->active_next->active_prev = op->active_prev;
690	}	676	}
		677
691	op->active_next = NULL;	678	op->active_next = NULL;
692	op->active_prev = NULL;	679	op->active_prev = NULL;
693	}	680	}
694	}	681	}
695		682
696	/* This function removes object 'op' from the list of active	683	/* This function removes object 'op' from the list of active
697	* objects.	684	* objects.
…		…
699	* reference maps where you don't want an object that isn't	686	* reference maps where you don't want an object that isn't
700	* in play chewing up cpu time getting processed.	687	* in play chewing up cpu time getting processed.
701	* The reverse of this is to call update_ob_speed, which	688	* The reverse of this is to call update_ob_speed, which
702	* will do the right thing based on the speed of the object.	689	* will do the right thing based on the speed of the object.
703	*/	690	*/
		691	void
704	void remove_from_active_list(object *op)	692	remove_from_active_list (object *op)
705	{	693	{
706	/* If not on the active list, nothing needs to be done */	694	/* If not on the active list, nothing needs to be done */
707	if (!op->active_next && !op->active_prev && op!=active_objects)	695	if (!op->active_next && !op->active_prev && op != active_objects)
708	return;	696	return;
709		697
710	if (op->active_prev==NULL) {	698	if (op->active_prev == NULL)
		699	{
711	active_objects = op->active_next;	700	active_objects = op->active_next;
712	if (op->active_next!=NULL)	701	if (op->active_next != NULL)
713	op->active_next->active_prev = NULL;	702	op->active_next->active_prev = NULL;
		703	}
		704	else
714	}	705	{
715	else {
716	op->active_prev->active_next = op->active_next;	706	op->active_prev->active_next = op->active_next;
717	if (op->active_next)	707	if (op->active_next)
718	op->active_next->active_prev = op->active_prev;	708	op->active_next->active_prev = op->active_prev;
719	}	709	}
720	op->active_next = NULL;	710	op->active_next = NULL;
721	op->active_prev = NULL;	711	op->active_prev = NULL;
722	}	712	}
723		713
724	/*	714	/*
725	* update_object() updates the array which represents the map.	715	* update_object() updates the array which represents the map.
726	* It takes into account invisible objects (and represent squares covered	716	* It takes into account invisible objects (and represent squares covered
…		…
741	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update	731	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update
742	* as that is easier than trying to look at what may have changed.	732	* as that is easier than trying to look at what may have changed.
743	* UP_OBJ_FACE: only the objects face has changed.	733	* UP_OBJ_FACE: only the objects face has changed.
744	*/	734	*/
745		735
		736	void
746	void update_object(object *op, int action) {	737	update_object (object *op, int action)
		738	{
747	int update_now=0, flags;	739	int update_now = 0, flags;
748	MoveType move_on, move_off, move_block, move_slow;	740	MoveType move_on, move_off, move_block, move_slow;
749		741
750	if (op == NULL) {	742	if (op == NULL)
		743	{
751	/* this should never happen */	744	/* this should never happen */
752	LOG(llevDebug,"update_object() called for NULL object.\n");	745	LOG (llevDebug, "update_object() called for NULL object.\n");
753	return;	746	return;
754	}
755		747	}
		748
756	if(op->env!=NULL) {	749	if (op->env != NULL)
		750	{
757	/* Animation is currently handled by client, so nothing	751	/* Animation is currently handled by client, so nothing
758	* to do in this case.	752	* to do in this case.
759	*/	753	*/
760	return;	754	return;
761	}	755	}
762		756
763	/* If the map is saving, don't do anything as everything is	757	/* If the map is saving, don't do anything as everything is
764	* going to get freed anyways.	758	* going to get freed anyways.
765	*/	759	*/
766	if (!op->map || op->map->in_memory == MAP_SAVING) return;	760	if (!op->map || op->map->in_memory == MAP_SAVING)
767		761	return;
		762
768	/* make sure the object is within map boundaries */	763	/* make sure the object is within map boundaries */
769	if (op->x < 0 || op->x >= MAP_WIDTH(op->map) ||	764	if (op->x < 0 || op->x >= MAP_WIDTH (op->map) || op->y < 0 || op->y >= MAP_HEIGHT (op->map))
770	op->y < 0 || op->y >= MAP_HEIGHT(op->map)) {	765	{
771	LOG(llevError,"update_object() called for object out of map!\n");	766	LOG (llevError, "update_object() called for object out of map!\n");
772	#ifdef MANY_CORES	767	#ifdef MANY_CORES
773	abort();	768	abort ();
774	#endif	769	#endif
775	return;	770	return;
776	}
777		771	}
		772
778	flags = GET_MAP_FLAGS(op->map, op->x, op->y);	773	flags = GET_MAP_FLAGS (op->map, op->x, op->y);
779	SET_MAP_FLAGS(op->map, op->x, op->y, flags | P_NEED_UPDATE);	774	SET_MAP_FLAGS (op->map, op->x, op->y, flags | P_NEED_UPDATE);
780	move_slow = GET_MAP_MOVE_SLOW(op->map, op->x, op->y);	775	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);
781	move_on = GET_MAP_MOVE_ON(op->map, op->x, op->y);	776	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);
782	move_block = GET_MAP_MOVE_BLOCK(op->map, op->x, op->y);	777	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);
783	move_off = GET_MAP_MOVE_OFF(op->map, op->x, op->y);	778	move_off = GET_MAP_MOVE_OFF (op->map, op->x, op->y);
784		779
785	if (action == UP_OBJ_INSERT) {	780	if (action == UP_OBJ_INSERT)
		781	{
786	if (QUERY_FLAG(op, FLAG_BLOCKSVIEW) && !(flags & P_BLOCKSVIEW))	782	if (QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(flags & P_BLOCKSVIEW))
787	update_now=1;	783	update_now = 1;
788		784
789	if (QUERY_FLAG(op, FLAG_NO_MAGIC) && !(flags & P_NO_MAGIC))	785	if (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(flags & P_NO_MAGIC))
790	update_now=1;	786	update_now = 1;
791		787
792	if (QUERY_FLAG(op, FLAG_DAMNED) && !(flags & P_NO_CLERIC))	788	if (QUERY_FLAG (op, FLAG_DAMNED) && !(flags & P_NO_CLERIC))
793	update_now=1;	789	update_now = 1;
794		790
795	if (QUERY_FLAG(op, FLAG_ALIVE) && !(flags & P_IS_ALIVE))	791	if (QUERY_FLAG (op, FLAG_ALIVE) && !(flags & P_IS_ALIVE))
796	update_now=1;	792	update_now = 1;
797		793
798	if (op->type == SAFE_GROUND && !(flags & P_SAFE))	794	if (op->type == SAFE_GROUND && !(flags & P_SAFE))
799	update_now=1;	795	update_now = 1;
800		796
801	if ((move_on | op->move_on) != move_on) update_now=1;	797	if ((move_on | op->move_on) != move_on)
		798	update_now = 1;
802		799
803	if ((move_off | op->move_off) != move_off) update_now=1;	800	if ((move_off | op->move_off) != move_off)
		801	update_now = 1;
804		802
805	/* This isn't perfect, but I don't expect a lot of objects to	803	/* This isn't perfect, but I don't expect a lot of objects to
806	* to have move_allow right now.	804	* to have move_allow right now.
807	*/	805	*/
808	if (((move_block | op->move_block) & ~op->move_allow) != move_block)	806	if (((move_block | op->move_block) & ~op->move_allow) != move_block)
809	update_now=1;	807	update_now = 1;
810		808
811	if ((move_slow | op->move_slow) != move_slow)	809	if ((move_slow | op->move_slow) != move_slow)
812	update_now=1;	810	update_now = 1;
813	}	811	}
		812
814	/* if the object is being removed, we can't make intelligent	813	/* if the object is being removed, we can't make intelligent
815	* decisions, because remove_ob can't really pass the object	814	* decisions, because remove_ob can't really pass the object
816	* that is being removed.	815	* that is being removed.
817	*/	816	*/
818	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE) {	817	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)
819	update_now=1;	818	update_now = 1;
820	} else if (action == UP_OBJ_FACE) {	819	else if (action == UP_OBJ_FACE)
821	/* Nothing to do for that case */	820	/* Nothing to do for that case */ ;
822	}
823	else {	821	else
824	LOG(llevError,"update_object called with invalid action: %d\n", action);	822	LOG (llevError, "update_object called with invalid action: %d\n", action);
825	}
826		823
827	if (update_now) {	824	if (update_now)
		825	{
828	SET_MAP_FLAGS(op->map, op->x, op->y, flags | P_NO_ERROR | P_NEED_UPDATE);	826	SET_MAP_FLAGS (op->map, op->x, op->y, flags | P_NO_ERROR | P_NEED_UPDATE);
829	update_position(op->map, op->x, op->y);	827	update_position (op->map, op->x, op->y);
830	}	828	}
831		829
832	if(op->more!=NULL)	830	if (op->more != NULL)
833	update_object(op->more, action);	831	update_object (op->more, action);
834	}	832	}
835		833
836	static std::vector<object *> mortals;	834	object::vector object::mortals;
		835	object::vector object::objects; // not yet used
		836	object *object::first;
837		837
838	void object::free_mortals ()	838	void object::free_mortals ()
839	{	839	{
840	for (std::vector<object *>::iterator i = mortals.begin (); i != mortals.end (); ++i)	840	for (AUTODECL (i, mortals.begin ()); i != mortals.end ();)
		841	if ((*i)->refcnt)
		842	++i; // further delay freeing
		843	else
		844	{
841	delete *i;	845	delete *i;
842		846	mortals.erase (i);
843	mortals.clear ();	847	}
844	}	848	}
845		849
846	object::object ()	850	object::object ()
847	{	851	{
848	SET_FLAG (this, FLAG_REMOVED);	852	SET_FLAG (this, FLAG_REMOVED);
849		853
850	expmul = 1.0;	854	expmul = 1.0;
851	face = blank_face;	855	face = blank_face;
852	attacked_by_count = -1;
853	}	856	}
854		857
855	object::~object ()	858	object::~object ()
856	{	859	{
857	free_key_values (this);	860	free_key_values (this);
858	}	861	}
859		862
860	void
861	object::link ()	863	void object::link ()
862	{	864	{
863	count = ++ob_count;	865	count = ++ob_count;
		866	uuid = gen_uuid ();
864		867
865	prev = 0;	868	prev = 0;
866	next = objects;	869	next = object::first;
867		870
868	if (objects)	871	if (object::first)
869	objects->prev = this;	872	object::first->prev = this;
870		873
871	objects = this;	874	object::first = this;
872	}	875	}
873		876
874	void
875	object::unlink ()	877	void object::unlink ()
876	{	878	{
877	count = 0;	879	if (this == object::first)
		880	object::first = next;
878		881
879	/* Remove this object from the list of used objects */	882	/* Remove this object from the list of used objects */
880	if (prev) prev->next = next;	883	if (prev) prev->next = next;
881	if (next) next->prev = prev;	884	if (next) next->prev = prev;
882	if (this == objects) objects = next;	885
883	}	886	prev = 0;
		887	next = 0;
		888	}
884		889
885	object *object::create ()	890	object *object::create ()
886	{	891	{
887	object *op = new object;	892	object *op = new object;
888	op->link ();	893	op->link ();
…		…
894	* it from the list of used objects, and puts it on the list of	899	* it from the list of used objects, and puts it on the list of
895	* free objects. The IS_FREED() flag is set in the object.	900	* free objects. The IS_FREED() flag is set in the object.
896	* The object must have been removed by remove_ob() first for	901	* The object must have been removed by remove_ob() first for
897	* this function to succeed.	902	* this function to succeed.
898	*	903	*
899	* If free_inventory is set, free inventory as well. Else drop items in	904	* If destroy_inventory is set, free inventory as well. Else drop items in
900	* inventory to the ground.	905	* inventory to the ground.
901	*/	906	*/
902	void	907	void object::destroy (bool destroy_inventory)
903	object::free (bool free_inventory)
904	{	908	{
		909	if (QUERY_FLAG (this, FLAG_FREED))
		910	return;
		911
		912	if (QUERY_FLAG (this, FLAG_FRIENDLY))
		913	remove_friendly_object (this);
		914
905	if (!QUERY_FLAG (this, FLAG_REMOVED))	915	if (!QUERY_FLAG (this, FLAG_REMOVED))
906	{	916	remove ();
907	LOG (llevDebug, "Free object called with non removed object\n");
908	dump_object (this);
909	#ifdef MANY_CORES
910	abort ();
911	#endif
912	}
913		917
914	if (QUERY_FLAG (this, FLAG_FRIENDLY))
915	{
916	LOG (llevMonster, "Warning: tried to free friendly object.\n");
917	remove_friendly_object (this);
918	}
919
920	if (QUERY_FLAG (this, FLAG_FREED))	918	SET_FLAG (this, FLAG_FREED);
921	{
922	dump_object (this);
923	LOG (llevError, "Trying to free freed object.\n%s\n", errmsg);
924	return;
925	}
926		919
927	if (more)	920	if (more)
928	{	921	{
929	more->free (free_inventory);	922	more->destroy (destroy_inventory);
930	more = 0;	923	more = 0;
931	}	924	}
932		925
933	if (inv)	926	if (inv)
934	{	927	{
935	/* Only if the space blocks everything do we not process -	928	/* Only if the space blocks everything do we not process -
936	* if some form of movement is allowed, let objects	929	* if some form of movement is allowed, let objects
937	* drop on that space.	930	* drop on that space.
938	*/	931	*/
939	if (free_inventory || !map	932	if (destroy_inventory || !map || map->in_memory != MAP_IN_MEMORY || GET_MAP_MOVE_BLOCK (map, x, y) == MOVE_ALL)
940	|| map->in_memory != MAP_IN_MEMORY	933	{
941	|| (GET_MAP_MOVE_BLOCK (map, x, y) == MOVE_ALL))
942	{
943	object *op = inv;	934	object *op = inv;
944		935
945	while (op)	936	while (op)
946	{	937	{
947	object *tmp = op->below;	938	object *tmp = op->below;
948	remove_ob (op);
949	op->free (free_inventory);	939	op->destroy (destroy_inventory);
950	op = tmp;	940	op = tmp;
951	}	941	}
952	}	942	}
953	else	943	else
954	{ /* Put objects in inventory onto this space */	944	{ /* Put objects in inventory onto this space */
955	object *op = inv;	945	object *op = inv;
956		946
957	while (op)	947	while (op)
958	{	948	{
959	object *tmp = op->below;	949	object *tmp = op->below;
960	remove_ob (op);
961		950
		951	op->remove ();
		952
962	if (QUERY_FLAG (op, FLAG_STARTEQUIP)	953	if (QUERY_FLAG (op, FLAG_STARTEQUIP)
963	|| QUERY_FLAG (op, FLAG_NO_DROP) || op->type == RUNE	954	|| QUERY_FLAG (op, FLAG_NO_DROP) || op->type == RUNE || op->type == TRAP || QUERY_FLAG (op, FLAG_IS_A_TEMPLATE))
964	|| op->type == TRAP || QUERY_FLAG (op, FLAG_IS_A_TEMPLATE))	955	op->destroy ();
965	free_object (op);	956	else
966	else	957	{
967	{	958	op->x = x;
968	op->x = x;	959	op->y = y;
969	op->y = y;
970	insert_ob_in_map (op, map, 0, 0); /* Insert in same map as the envir */	960	insert_ob_in_map (op, map, 0, 0); /* Insert in same map as the envir */
971	}	961	}
972		962
973	op = tmp;	963	op = tmp;
		964	}
		965	}
974	}	966	}
975	}	967
		968	// hack to ensure that freed objects still have a valid map
		969	{
		970	static maptile *freed_map; // freed objects are moved here to avoid crashes
		971
		972	if (!freed_map)
		973	{
		974	freed_map = new maptile;
		975
		976	freed_map->name = "/internal/freed_objects_map";
		977	freed_map->width = 3;
		978	freed_map->height = 3;
		979
		980	freed_map->allocate ();
976	}	981	}
		982
		983	map = freed_map;
		984	x = 1;
		985	y = 1;
		986	}
		987
		988	// clear those pointers that likely might have circular references to us
		989	owner = 0;
		990	enemy = 0;
		991	attacked_by = 0;
		992
		993	// only relevant for players(?), but make sure of it anyways
		994	contr = 0;
977		995
978	/* Remove object from the active list */	996	/* Remove object from the active list */
979	speed = 0;	997	speed = 0;
980	update_ob_speed (this);	998	update_ob_speed (this);
981		999
982	unlink ();	1000	unlink ();
983		1001
984	SET_FLAG (this, FLAG_FREED);
985
986	mortals.push_back (this);	1002	mortals.push_back (this);
987	}	1003	}
988		1004
989	/*	1005	/*
990	* sub_weight() recursively (outwards) subtracts a number from the	1006	* sub_weight() recursively (outwards) subtracts a number from the
991	* weight of an object (and what is carried by it's environment(s)).	1007	* weight of an object (and what is carried by it's environment(s)).
992	*/	1008	*/
993		1009	void
994	void sub_weight (object *op, signed long weight) {	1010	sub_weight (object *op, signed long weight)
		1011	{
995	while (op != NULL) {	1012	while (op != NULL)
		1013	{
996	if (op->type == CONTAINER) {	1014	if (op->type == CONTAINER)
997	weight=(signed long)(weight*(100-op->stats.Str)/100);	1015	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
998	}	1016
999	op->carrying-=weight;	1017	op->carrying -= weight;
1000	op = op->env;	1018	op = op->env;
1001	}	1019	}
1002	}	1020	}
1003		1021
1004	/* remove_ob(op):	1022	/* op->remove ():
1005	* This function removes the object op from the linked list of objects	1023	* This function removes the object op from the linked list of objects
1006	* which it is currently tied to. When this function is done, the	1024	* which it is currently tied to. When this function is done, the
1007	* object will have no environment. If the object previously had an	1025	* object will have no environment. If the object previously had an
1008	* environment, the x and y coordinates will be updated to	1026	* environment, the x and y coordinates will be updated to
1009	* the previous environment.	1027	* the previous environment.
1010	* Beware: This function is called from the editor as well!	1028	* Beware: This function is called from the editor as well!
1011	*/	1029	*/
1012		1030	void
1013	void remove_ob(object *op) {	1031	object::remove ()
		1032	{
1014	object *tmp,*last=NULL;	1033	object *tmp, *last = 0;
1015	object *otmp;	1034	object *otmp;
1016	tag_t tag;	1035
1017	int check_walk_off;	1036	int check_walk_off;
1018	mapstruct *m;
1019	sint16 x,y;
1020
1021		1037
1022	if(QUERY_FLAG(op,FLAG_REMOVED)) {	1038	if (QUERY_FLAG (this, FLAG_REMOVED))
1023	dump_object(op);	1039	return;
1024	LOG(llevError,"Trying to remove removed object.\n%s\n",errmsg);
1025		1040
1026	/* Changed it to always dump core in this case. As has been learned
1027	* in the past, trying to recover from errors almost always
1028	* make things worse, and this is a real error here - something
1029	* that should not happen.
1030	* Yes, if this was a mission critical app, trying to do something
1031	* to recover may make sense, but that is because failure of the app
1032	* may have other disastrous problems. Cf runs out of a script
1033	* so is easily enough restarted without any real problems.
1034	* MSW 2001-07-01
1035	*/
1036	abort();
1037	}
1038	if(op->more!=NULL)
1039	remove_ob(op->more);
1040
1041	SET_FLAG(op, FLAG_REMOVED);	1041	SET_FLAG (this, FLAG_REMOVED);
1042		1042
		1043	if (more)
		1044	more->remove ();
		1045
1043	/*	1046	/*
1044	* In this case, the object to be removed is in someones	1047	* In this case, the object to be removed is in someones
1045	* inventory.	1048	* inventory.
1046	*/	1049	*/
1047	if(op->env!=NULL) {	1050	if (env)
		1051	{
1048	if(op->nrof)	1052	if (nrof)
1049	sub_weight(op->env, op->weight*op->nrof);	1053	sub_weight (env, weight * nrof);
1050	else	1054	else
1051	sub_weight(op->env, op->weight+op->carrying);	1055	sub_weight (env, weight + carrying);
1052		1056
1053	/* NO_FIX_PLAYER is set when a great many changes are being	1057	/* NO_FIX_PLAYER is set when a great many changes are being
1054	* made to players inventory. If set, avoiding the call	1058	* made to players inventory. If set, avoiding the call
1055	* to save cpu time.	1059	* to save cpu time.
1056	*/	1060	*/
1057	if ((otmp=is_player_inv(op->env))!=NULL && otmp->contr &&	1061	if ((otmp = is_player_inv (env)) != NULL && otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1058	!QUERY_FLAG(otmp,FLAG_NO_FIX_PLAYER))
1059	fix_player(otmp);	1062	fix_player (otmp);
1060		1063
1061	if(op->above!=NULL)	1064	if (above != NULL)
1062	op->above->below=op->below;	1065	above->below = below;
1063	else	1066	else
1064	op->env->inv=op->below;	1067	env->inv = below;
1065		1068
1066	if(op->below!=NULL)	1069	if (below != NULL)
1067	op->below->above=op->above;	1070	below->above = above;
1068		1071
1069	/* we set up values so that it could be inserted into	1072	/* we set up values so that it could be inserted into
1070	* the map, but we don't actually do that - it is up	1073	* the map, but we don't actually do that - it is up
1071	* to the caller to decide what we want to do.	1074	* to the caller to decide what we want to do.
		1075	*/
		1076	x = env->x, y = env->y;
		1077	map = env->map;
		1078	above = 0, below = 0;
		1079	env = 0;
		1080	}
		1081	else if (map)
		1082	{
		1083	/* Re did the following section of code - it looks like it had
		1084	* lots of logic for things we no longer care about
		1085	*/
		1086
		1087	/* link the object above us */
		1088	if (above)
		1089	above->below = below;
		1090	else
		1091	SET_MAP_TOP (map, x, y, below); /* we were top, set new top */
		1092
		1093	/* Relink the object below us, if there is one */
		1094	if (below)
		1095	below->above = above;
		1096	else
		1097	{
		1098	/* Nothing below, which means we need to relink map object for this space
		1099	* use translated coordinates in case some oddness with map tiling is
		1100	* evident
1072	*/	1101	*/
1073	op->x=op->env->x,op->y=op->env->y;	1102	if (GET_MAP_OB (map, x, y) != this)
1074	op->map=op->env->map;	1103	{
1075	op->above=NULL,op->below=NULL;	1104	char *dump = dump_object (this);
1076	op->env=NULL;	1105	LOG (llevError,
		1106	"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);
		1107	free (dump);
		1108	dump = dump_object (GET_MAP_OB (map, x, y));
		1109	LOG (llevError, "%s\n", dump);
		1110	free (dump);
		1111	}
		1112
		1113	SET_MAP_OB (map, x, y, above); /* goes on above it. */
		1114	}
		1115
		1116	above = 0;
		1117	below = 0;
		1118
		1119	if (map->in_memory == MAP_SAVING)
1077	return;	1120	return;
1078	}
1079		1121
1080	/* If we get here, we are removing it from a map */
1081	if (op->map == NULL) return;
1082
1083	x = op->x;
1084	y = op->y;
1085	m = get_map_from_coord(op->map, &x, &y);
1086
1087	if (!m) {
1088	LOG(llevError,"remove_ob called when object was on map but appears to not be within valid coordinates? %s (%d,%d)\n",
1089	op->map->path, op->x, op->y);
1090	/* in old days, we used to set x and y to 0 and continue.
1091	* it seems if we get into this case, something is probablye
1092	* screwed up and should be fixed.
1093	*/
1094	abort();
1095	}
1096	if (op->map != m) {
1097	LOG(llevDebug,"remove_ob: Object not really on map it claimed to be on? %s != %s, %d,%d != %d,%d\n",
1098	op->map->path, m->path, op->x, op->y, x, y);
1099	}
1100
1101	/* Re did the following section of code - it looks like it had
1102	* lots of logic for things we no longer care about
1103	*/
1104
1105	/* link the object above us */
1106	if (op->above)
1107	op->above->below=op->below;
1108	else
1109	SET_MAP_TOP(m,x,y,op->below); /* we were top, set new top */
1110
1111	/* Relink the object below us, if there is one */
1112	if(op->below) {
1113	op->below->above=op->above;
1114	} else {
1115	/* Nothing below, which means we need to relink map object for this space
1116	* use translated coordinates in case some oddness with map tiling is
1117	* evident
1118	*/
1119	if(GET_MAP_OB(m,x,y)!=op) {
1120	dump_object(op);
1121	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);
1122	dump_object(GET_MAP_OB(m,x,y));
1123	LOG(llevError,"%s\n",errmsg);
1124	}
1125	SET_MAP_OB(m,x,y,op->above); /* goes on above it. */
1126	}
1127	op->above=NULL;
1128	op->below=NULL;
1129
1130	if (op->map->in_memory == MAP_SAVING)
1131	return;
1132
1133	tag = op->count;
1134	check_walk_off = ! QUERY_FLAG (op, FLAG_NO_APPLY);	1122	check_walk_off = !QUERY_FLAG (this, FLAG_NO_APPLY);
		1123
1135	for(tmp=GET_MAP_OB(m,x,y);tmp!=NULL;tmp=tmp->above) {	1124	for (tmp = GET_MAP_OB (map, x, y); tmp; tmp = tmp->above)
		1125	{
1136	/* No point updating the players look faces if he is the object	1126	/* No point updating the players look faces if he is the object
1137	* being removed.	1127	* being removed.
1138	*/	1128	*/
1139		1129
1140	if(tmp->type==PLAYER && tmp!=op) {	1130	if (tmp->type == PLAYER && tmp != this)
		1131	{
1141	/* If a container that the player is currently using somehow gets	1132	/* If a container that the player is currently using somehow gets
1142	* removed (most likely destroyed), update the player view	1133	* removed (most likely destroyed), update the player view
1143	* appropriately.	1134	* appropriately.
1144	*/	1135	*/
1145	if (tmp->container==op) {	1136	if (tmp->container == this)
		1137	{
1146	CLEAR_FLAG(op, FLAG_APPLIED);	1138	CLEAR_FLAG (this, FLAG_APPLIED);
1147	tmp->container=NULL;	1139	tmp->container = 0;
		1140	}
		1141
		1142	tmp->contr->socket->update_look = 1;
1148	}	1143	}
1149	tmp->contr->socket.update_look=1;	1144
1150	}
1151	/* See if player moving off should effect something */	1145	/* See if player moving off should effect something */
1152	if (check_walk_off && ((op->move_type & tmp->move_off) &&	1146	if (check_walk_off
		1147	&& ((move_type & tmp->move_off)
1153	(op->move_type & ~tmp->move_off & ~tmp->move_block)==0)) {	1148	&& (move_type & ~tmp->move_off & ~tmp->move_block) == 0))
1154		1149	{
1155	move_apply(tmp, op, NULL);	1150	move_apply (tmp, this, 0);
		1151
1156	if (was_destroyed (op, tag)) {	1152	if (destroyed ())
1157	LOG (llevError, "BUG: remove_ob(): name %s, archname %s destroyed "	1153	LOG (llevError, "BUG: remove_ob(): name %s, destroyed leaving object\n", tmp->debug_desc ());
1158	"leaving object\n", &tmp->name, &tmp->arch->name);
1159	}	1154	}
1160	}
1161		1155
1162	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */	1156	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */
1163		1157
1164	if(tmp->above == tmp)	1158	if (tmp->above == tmp)
1165	tmp->above = NULL;	1159	tmp->above = 0;
		1160
1166	last=tmp;	1161	last = tmp;
1167	}	1162	}
		1163
1168	/* last == NULL of there are no objects on this space */	1164	/* last == NULL of there are no objects on this space */
1169	if (last==NULL) {	1165	if (!last)
		1166	{
1170	/* set P_NEED_UPDATE, otherwise update_position will complain. In theory,	1167	/* set P_NEED_UPDATE, otherwise update_position will complain. In theory,
1171	* we could preserve the flags (GET_MAP_FLAGS), but update_position figures	1168	* we could preserve the flags (GET_MAP_FLAGS), but update_position figures
1172	* those out anyways, and if there are any flags set right now, they won't	1169	* those out anyways, and if there are any flags set right now, they won't
1173	* be correct anyways.	1170	* be correct anyways.
1174	*/	1171	*/
1175	SET_MAP_FLAGS(op->map, op->x, op->y, P_NEED_UPDATE);	1172	SET_MAP_FLAGS (map, x, y, P_NEED_UPDATE);
1176	update_position(op->map, op->x, op->y);	1173	update_position (map, x, y);
1177	}	1174	}
1178	else	1175	else
1179	update_object(last, UP_OBJ_REMOVE);	1176	update_object (last, UP_OBJ_REMOVE);
1180		1177
1181	if(QUERY_FLAG(op,FLAG_BLOCKSVIEW)|| (op->glow_radius != 0))	1178	if (QUERY_FLAG (this, FLAG_BLOCKSVIEW) || glow_radius)
1182	update_all_los(op->map, op->x, op->y);	1179	update_all_los (map, x, y);
1183		1180	}
1184	}	1181	}
1185		1182
1186	/*	1183	/*
1187	* merge_ob(op,top):	1184	* merge_ob(op,top):
1188	*	1185	*
1189	* This function goes through all objects below and including top, and	1186	* This function goes through all objects below and including top, and
1190	* merges op to the first matching object.	1187	* merges op to the first matching object.
1191	* If top is NULL, it is calculated.	1188	* If top is NULL, it is calculated.
1192	* Returns pointer to object if it succeded in the merge, otherwise NULL	1189	* Returns pointer to object if it succeded in the merge, otherwise NULL
1193	*/	1190	*/
1194		1191	object *
1195	object *merge_ob(object *op, object *top) {	1192	merge_ob (object *op, object *top)
		1193	{
1196	if(!op->nrof)	1194	if (!op->nrof)
1197	return 0;	1195	return 0;
		1196
1198	if(top==NULL)	1197	if (top == NULL)
1199	for(top=op;top!=NULL&&top->above!=NULL;top=top->above);	1198	for (top = op; top != NULL && top->above != NULL; top = top->above);
		1199
1200	for(;top!=NULL;top=top->below) {	1200	for (; top != NULL; top = top->below)
		1201	{
1201	if(top==op)	1202	if (top == op)
1202	continue;	1203	continue;
1203	if (CAN_MERGE(op,top))	1204
1204	{	1205	if (object::can_merge (op, top))
		1206	{
1205	top->nrof+=op->nrof;	1207	top->nrof += op->nrof;
		1208
1206	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/	1209	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/
1207	op->weight = 0; /* Don't want any adjustements now */	1210	op->weight = 0; /* Don't want any adjustements now */
1208	remove_ob(op);	1211	op->destroy ();
1209	free_object(op);
1210	return top;	1212	return top;
1211	}	1213	}
1212	}	1214	}
		1215
1213	return NULL;	1216	return 0;
1214	}	1217	}
1215		1218
1216	/*	1219	/*
1217	* same as insert_ob_in_map except it handle separate coordinates and do a clean	1220	* same as insert_ob_in_map except it handle separate coordinates and do a clean
1218	* job preparing multi-part monsters	1221	* job preparing multi-part monsters
1219	*/	1222	*/
		1223	object *
1220	object *insert_ob_in_map_at(object *op, mapstruct *m, object *originator, int flag, int x, int y){	1224	insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)
		1225	{
1221	object* tmp;	1226	object *tmp;
		1227
1222	if (op->head)	1228	if (op->head)
1223	op=op->head;	1229	op = op->head;
		1230
1224	for (tmp=op;tmp;tmp=tmp->more){	1231	for (tmp = op; tmp; tmp = tmp->more)
		1232	{
1225	tmp->x=x+tmp->arch->clone.x;	1233	tmp->x = x + tmp->arch->clone.x;
1226	tmp->y=y+tmp->arch->clone.y;	1234	tmp->y = y + tmp->arch->clone.y;
1227	}	1235	}
		1236
1228	return insert_ob_in_map (op, m, originator, flag);	1237	return insert_ob_in_map (op, m, originator, flag);
1229	}	1238	}
1230		1239
1231	/*	1240	/*
1232	* insert_ob_in_map (op, map, originator, flag):	1241	* insert_ob_in_map (op, map, originator, flag):
1233	* This function inserts the object in the two-way linked list	1242	* This function inserts the object in the two-way linked list
…		…
1247	* new object if 'op' was merged with other object	1256	* new object if 'op' was merged with other object
1248	* NULL if 'op' was destroyed	1257	* NULL if 'op' was destroyed
1249	* just 'op' otherwise	1258	* just 'op' otherwise
1250	*/	1259	*/
1251		1260
		1261	object *
1252	object *insert_ob_in_map (object *op, mapstruct *m, object *originator, int flag)	1262	insert_ob_in_map (object *op, maptile *m, object *originator, int flag)
1253	{	1263	{
1254	object *tmp, *top, *floor=NULL;	1264	object *tmp, *top, *floor = NULL;
1255	sint16 x,y;	1265	sint16 x, y;
1256		1266
1257	if (QUERY_FLAG (op, FLAG_FREED)) {	1267	if (QUERY_FLAG (op, FLAG_FREED))
		1268	{
1258	LOG (llevError, "Trying to insert freed object!\n");	1269	LOG (llevError, "Trying to insert freed object!\n");
		1270	return NULL;
		1271	}
		1272
		1273	if (m == NULL)
		1274	{
		1275	char *dump = dump_object (op);
		1276	LOG (llevError, "Trying to insert in null-map!\n%s\n", dump);
		1277	free (dump);
		1278	return op;
		1279	}
		1280
		1281	if (out_of_map (m, op->x, op->y))
		1282	{
		1283	char *dump = dump_object (op);
		1284	LOG (llevError, "Trying to insert object outside the map.\n%s\n", dump);
		1285	#ifdef MANY_CORES
		1286	/* Better to catch this here, as otherwise the next use of this object
		1287	* is likely to cause a crash. Better to find out where it is getting
		1288	* improperly inserted.
		1289	*/
		1290	abort ();
		1291	#endif
		1292	free (dump);
		1293	return op;
		1294	}
		1295
		1296	if (!QUERY_FLAG (op, FLAG_REMOVED))
		1297	{
		1298	char *dump = dump_object (op);
		1299	LOG (llevError, "Trying to insert (map) inserted object.\n%s\n", dump);
		1300	free (dump);
		1301	return op;
		1302	}
		1303
		1304	if (op->more != NULL)
		1305	{
		1306	/* The part may be on a different map. */
		1307
		1308	object *more = op->more;
		1309
		1310	/* We really need the caller to normalize coordinates - if
		1311	* we set the map, that doesn't work if the location is within
		1312	* a map and this is straddling an edge. So only if coordinate
		1313	* is clear wrong do we normalize it.
		1314	*/
		1315	if (OUT_OF_REAL_MAP (more->map, more->x, more->y))
		1316	more->map = get_map_from_coord (m, &more->x, &more->y);
		1317	else if (!more->map)
		1318	{
		1319	/* For backwards compatibility - when not dealing with tiled maps,
		1320	* more->map should always point to the parent.
		1321	*/
		1322	more->map = m;
		1323	}
		1324
		1325	if (insert_ob_in_map (more, more->map, originator, flag) == NULL)
		1326	{
		1327	if (!op->head)
		1328	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");
		1329
		1330	return NULL;
		1331	}
		1332	}
		1333
		1334	CLEAR_FLAG (op, FLAG_REMOVED);
		1335
		1336	/* Ideally, the caller figures this out. However, it complicates a lot
		1337	* of areas of callers (eg, anything that uses find_free_spot would now
		1338	* need extra work
		1339	*/
		1340	op->map = get_map_from_coord (m, &op->x, &op->y);
		1341	x = op->x;
		1342	y = op->y;
		1343
		1344	/* this has to be done after we translate the coordinates.
		1345	*/
		1346	if (op->nrof && !(flag & INS_NO_MERGE))
		1347	for (tmp = GET_MAP_OB (op->map, x, y); tmp != NULL; tmp = tmp->above)
		1348	if (object::can_merge (op, tmp))
		1349	{
		1350	op->nrof += tmp->nrof;
		1351	tmp->destroy ();
		1352	}
		1353
		1354	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */
		1355	CLEAR_FLAG (op, FLAG_INV_LOCKED);
		1356
		1357	if (!QUERY_FLAG (op, FLAG_ALIVE))
		1358	CLEAR_FLAG (op, FLAG_NO_STEAL);
		1359
		1360	if (flag & INS_BELOW_ORIGINATOR)
		1361	{
		1362	if (originator->map != op->map || originator->x != op->x || originator->y != op->y)
		1363	{
		1364	LOG (llevError, "insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");
		1365	abort ();
		1366	}
		1367
		1368	op->above = originator;
		1369	op->below = originator->below;
		1370
		1371	if (op->below)
		1372	op->below->above = op;
		1373	else
		1374	SET_MAP_OB (op->map, op->x, op->y, op);
		1375
		1376	/* since *below* originator, no need to update top */
		1377	originator->below = op;
		1378	}
		1379	else
		1380	{
		1381	/* If there are other objects, then */
		1382	if ((!(flag & INS_MAP_LOAD)) && ((top = GET_MAP_OB (op->map, op->x, op->y)) != NULL))
		1383	{
		1384	object *last = NULL;
		1385
		1386	/*
		1387	* If there are multiple objects on this space, we do some trickier handling.
		1388	* We've already dealt with merging if appropriate.
		1389	* Generally, we want to put the new object on top. But if
		1390	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last
		1391	* floor, we want to insert above that and no further.
		1392	* Also, if there are spell objects on this space, we stop processing
		1393	* once we get to them. This reduces the need to traverse over all of
		1394	* them when adding another one - this saves quite a bit of cpu time
		1395	* when lots of spells are cast in one area. Currently, it is presumed
		1396	* that flying non pickable objects are spell objects.
		1397	*/
		1398
		1399	while (top != NULL)
		1400	{
		1401	if (QUERY_FLAG (top, FLAG_IS_FLOOR) || QUERY_FLAG (top, FLAG_OVERLAY_FLOOR))
		1402	floor = top;
		1403
		1404	if (QUERY_FLAG (top, FLAG_NO_PICK) && (top->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (top, FLAG_IS_FLOOR))
		1405	{
		1406	/* We insert above top, so we want this object below this */
		1407	top = top->below;
		1408	break;
		1409	}
		1410
		1411	last = top;
		1412	top = top->above;
		1413	}
		1414
		1415	/* Don't want top to be NULL, so set it to the last valid object */
		1416	top = last;
		1417
		1418	/* We let update_position deal with figuring out what the space
		1419	* looks like instead of lots of conditions here.
		1420	* makes things faster, and effectively the same result.
		1421	*/
		1422
		1423	/* Have object 'fall below' other objects that block view.
		1424	* Unless those objects are exits, type 66
		1425	* If INS_ON_TOP is used, don't do this processing
		1426	* Need to find the object that in fact blocks view, otherwise
		1427	* stacking is a bit odd.
		1428	*/
		1429	if (!(flag & INS_ON_TOP) &&
		1430	(get_map_flags (op->map, NULL, op->x, op->y, NULL, NULL) & P_BLOCKSVIEW) && (op->face && !op->face->visibility))
		1431	{
		1432	for (last = top; last != floor; last = last->below)
		1433	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))
		1434	break;
		1435	/* Check to see if we found the object that blocks view,
		1436	* and make sure we have a below pointer for it so that
		1437	* we can get inserted below this one, which requires we
		1438	* set top to the object below us.
		1439	*/
		1440	if (last && last->below && last != floor)
		1441	top = last->below;
		1442	}
		1443	} /* If objects on this space */
		1444
		1445	if (flag & INS_MAP_LOAD)
		1446	top = GET_MAP_TOP (op->map, op->x, op->y);
		1447
		1448	if (flag & INS_ABOVE_FLOOR_ONLY)
		1449	top = floor;
		1450
		1451	/* Top is the object that our object (op) is going to get inserted above.
		1452	*/
		1453
		1454	/* First object on this space */
		1455	if (!top)
		1456	{
		1457	op->above = GET_MAP_OB (op->map, op->x, op->y);
		1458
		1459	if (op->above)
		1460	op->above->below = op;
		1461
		1462	op->below = NULL;
		1463	SET_MAP_OB (op->map, op->x, op->y, op);
		1464	}
		1465	else
		1466	{ /* get inserted into the stack above top */
		1467	op->above = top->above;
		1468
		1469	if (op->above)
		1470	op->above->below = op;
		1471
		1472	op->below = top;
		1473	top->above = op;
		1474	}
		1475
		1476	if (op->above == NULL)
		1477	SET_MAP_TOP (op->map, op->x, op->y, op);
		1478	} /* else not INS_BELOW_ORIGINATOR */
		1479
		1480	if (op->type == PLAYER)
		1481	op->contr->do_los = 1;
		1482
		1483	/* If we have a floor, we know the player, if any, will be above
		1484	* it, so save a few ticks and start from there.
		1485	*/
		1486	if (!(flag & INS_MAP_LOAD))
		1487	for (tmp = floor ? floor : GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)
		1488	if (tmp->type == PLAYER)
		1489	tmp->contr->socket->update_look = 1;
		1490
		1491	/* If this object glows, it may affect lighting conditions that are
		1492	* visible to others on this map. But update_all_los is really
		1493	* an inefficient way to do this, as it means los for all players
		1494	* on the map will get recalculated. The players could very well
		1495	* be far away from this change and not affected in any way -
		1496	* this should get redone to only look for players within range,
		1497	* or just updating the P_NEED_UPDATE for spaces within this area
		1498	* of effect may be sufficient.
		1499	*/
		1500	if (MAP_DARKNESS (op->map) && (op->glow_radius != 0))
		1501	update_all_los (op->map, op->x, op->y);
		1502
		1503	/* updates flags (blocked, alive, no magic, etc) for this map space */
		1504	update_object (op, UP_OBJ_INSERT);
		1505
		1506	/* Don't know if moving this to the end will break anything. However,
		1507	* we want to have update_look set above before calling this.
		1508	*
		1509	* check_move_on() must be after this because code called from
		1510	* check_move_on() depends on correct map flags (so functions like
		1511	* blocked() and wall() work properly), and these flags are updated by
		1512	* update_object().
		1513	*/
		1514
		1515	/* if this is not the head or flag has been passed, don't check walk on status */
		1516	if (!(flag & INS_NO_WALK_ON) && !op->head)
		1517	{
		1518	if (check_move_on (op, originator))
1259	return NULL;	1519	return NULL;
1260	}
1261	if(m==NULL) {
1262	dump_object(op);
1263	LOG(llevError,"Trying to insert in null-map!\n%s\n",errmsg);
1264	return op;
1265	}
1266	if(out_of_map(m,op->x,op->y)) {
1267	dump_object(op);
1268	LOG(llevError,"Trying to insert object outside the map.\n%s\n", errmsg);
1269	#ifdef MANY_CORES
1270	/* Better to catch this here, as otherwise the next use of this object
1271	* is likely to cause a crash. Better to find out where it is getting
1272	* improperly inserted.
1273	*/
1274	abort();
1275	#endif
1276	return op;
1277	}
1278	if(!QUERY_FLAG(op,FLAG_REMOVED)) {
1279	dump_object(op);
1280	LOG(llevError,"Trying to insert (map) inserted object.\n%s\n", errmsg);
1281	return op;
1282	}
1283	if(op->more!=NULL) {
1284	/* The part may be on a different map. */
1285		1520
1286	object *more = op->more;
1287
1288	/* We really need the caller to normalize coordinates - if
1289	* we set the map, that doesn't work if the location is within
1290	* a map and this is straddling an edge. So only if coordinate
1291	* is clear wrong do we normalize it.
1292	*/
1293	if (OUT_OF_REAL_MAP(more->map, more->x, more->y)) {
1294	more->map = get_map_from_coord(m, &more->x, &more->y);
1295	} else if (!more->map) {
1296	/* For backwards compatibility - when not dealing with tiled maps,
1297	* more->map should always point to the parent.
1298	*/
1299	more->map = m;
1300	}
1301
1302	if (insert_ob_in_map(more, more->map, originator, flag) == NULL) {
1303	if ( ! op->head)
1304	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");
1305	return NULL;
1306	}
1307	}
1308	CLEAR_FLAG(op,FLAG_REMOVED);
1309
1310	/* Ideally, the caller figures this out. However, it complicates a lot
1311	* of areas of callers (eg, anything that uses find_free_spot would now
1312	* need extra work
1313	*/
1314	op->map=get_map_from_coord(m, &op->x, &op->y);
1315	x = op->x;
1316	y = op->y;
1317
1318	/* this has to be done after we translate the coordinates.
1319	*/
1320	if(op->nrof && !(flag & INS_NO_MERGE)) {
1321	for(tmp=GET_MAP_OB(op->map,x,y);tmp!=NULL;tmp=tmp->above)
1322	if (CAN_MERGE(op,tmp)) {
1323	op->nrof+=tmp->nrof;
1324	remove_ob(tmp);
1325	free_object(tmp);
1326	}
1327	}
1328
1329	CLEAR_FLAG(op,FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */
1330	CLEAR_FLAG(op, FLAG_INV_LOCKED);
1331	if (!QUERY_FLAG(op, FLAG_ALIVE))
1332	CLEAR_FLAG(op, FLAG_NO_STEAL);
1333
1334	if (flag & INS_BELOW_ORIGINATOR) {
1335	if (originator->map != op->map || originator->x != op->x ||
1336	originator->y != op->y) {
1337	LOG(llevError,"insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");
1338	abort();
1339	}
1340	op->above = originator;
1341	op->below = originator->below;
1342	if (op->below) op->below->above = op;
1343	else SET_MAP_OB(op->map, op->x, op->y, op);
1344	/* since *below* originator, no need to update top */
1345	originator->below = op;
1346	} else {
1347	/* If there are other objects, then */
1348	if((! (flag & INS_MAP_LOAD)) && ((top=GET_MAP_OB(op->map,op->x,op->y))!=NULL)) {
1349	object *last=NULL;
1350	/*
1351	* If there are multiple objects on this space, we do some trickier handling.
1352	* We've already dealt with merging if appropriate.
1353	* Generally, we want to put the new object on top. But if
1354	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last
1355	* floor, we want to insert above that and no further.
1356	* Also, if there are spell objects on this space, we stop processing
1357	* once we get to them. This reduces the need to traverse over all of
1358	* them when adding another one - this saves quite a bit of cpu time
1359	* when lots of spells are cast in one area. Currently, it is presumed
1360	* that flying non pickable objects are spell objects.
1361	*/
1362
1363	while (top != NULL) {
1364	if (QUERY_FLAG(top, FLAG_IS_FLOOR) ||
1365	QUERY_FLAG(top, FLAG_OVERLAY_FLOOR)) floor = top;
1366	if (QUERY_FLAG(top, FLAG_NO_PICK)
1367	&& (top->move_type & (MOVE_FLY_LOW |MOVE_FLY_HIGH))
1368	&& !QUERY_FLAG(top, FLAG_IS_FLOOR))
1369	{
1370	/* We insert above top, so we want this object below this */
1371	top=top->below;
1372	break;
1373	}
1374	last = top;
1375	top = top->above;
1376	}
1377	/* Don't want top to be NULL, so set it to the last valid object */
1378	top = last;
1379
1380	/* We let update_position deal with figuring out what the space
1381	* looks like instead of lots of conditions here.
1382	* makes things faster, and effectively the same result.
1383	*/
1384
1385	/* Have object 'fall below' other objects that block view.
1386	* Unless those objects are exits, type 66
1387	* If INS_ON_TOP is used, don't do this processing
1388	* Need to find the object that in fact blocks view, otherwise
1389	* stacking is a bit odd.
1390	*/
1391	if (!(flag & INS_ON_TOP) &&
1392	(get_map_flags(op->map, NULL, op->x, op->y, NULL, NULL) & P_BLOCKSVIEW) &&
1393	(op->face && !op->face->visibility)) {
1394	for (last=top; last != floor; last=last->below)
1395	if (QUERY_FLAG(last, FLAG_BLOCKSVIEW)&&(last->type != EXIT)) break;
1396	/* Check to see if we found the object that blocks view,
1397	* and make sure we have a below pointer for it so that
1398	* we can get inserted below this one, which requires we
1399	* set top to the object below us.
1400	*/
1401	if (last && last->below && last != floor) top=last->below;
1402	}
1403	} /* If objects on this space */
1404	if (flag & INS_MAP_LOAD)
1405	top = GET_MAP_TOP(op->map,op->x,op->y);
1406	if (flag & INS_ABOVE_FLOOR_ONLY) top = floor;
1407
1408	/* Top is the object that our object (op) is going to get inserted above.
1409	*/
1410
1411	/* First object on this space */
1412	if (!top) {
1413	op->above = GET_MAP_OB(op->map, op->x, op->y);
1414	if (op->above) op->above->below = op;
1415	op->below = NULL;
1416	SET_MAP_OB(op->map, op->x, op->y, op);
1417	} else { /* get inserted into the stack above top */
1418	op->above = top->above;
1419	if (op->above) op->above->below = op;
1420	op->below = top;
1421	top->above = op;
1422	}
1423	if (op->above==NULL)
1424	SET_MAP_TOP(op->map,op->x, op->y, op);
1425	} /* else not INS_BELOW_ORIGINATOR */
1426
1427	if(op->type==PLAYER)
1428	op->contr->do_los=1;
1429
1430	/* If we have a floor, we know the player, if any, will be above
1431	* it, so save a few ticks and start from there.
1432	*/
1433	if (!(flag & INS_MAP_LOAD))
1434	for(tmp=floor?floor:GET_MAP_OB(op->map,op->x,op->y);tmp!=NULL;tmp=tmp->above) {
1435	if (tmp->type == PLAYER)
1436	tmp->contr->socket.update_look=1;
1437	}
1438
1439	/* If this object glows, it may affect lighting conditions that are
1440	* visible to others on this map. But update_all_los is really
1441	* an inefficient way to do this, as it means los for all players
1442	* on the map will get recalculated. The players could very well
1443	* be far away from this change and not affected in any way -
1444	* this should get redone to only look for players within range,
1445	* or just updating the P_NEED_UPDATE for spaces within this area
1446	* of effect may be sufficient.
1447	*/
1448	if(MAP_DARKNESS(op->map) && (op->glow_radius != 0))
1449	update_all_los(op->map, op->x, op->y);
1450
1451
1452	/* updates flags (blocked, alive, no magic, etc) for this map space */
1453	update_object(op,UP_OBJ_INSERT);
1454
1455
1456	/* Don't know if moving this to the end will break anything. However,
1457	* we want to have update_look set above before calling this.
1458	*
1459	* check_move_on() must be after this because code called from
1460	* check_move_on() depends on correct map flags (so functions like
1461	* blocked() and wall() work properly), and these flags are updated by
1462	* update_object().
1463	*/
1464
1465	/* if this is not the head or flag has been passed, don't check walk on status */
1466
1467	if (!(flag & INS_NO_WALK_ON) && !op->head) {
1468	if (check_move_on(op, originator))
1469	return NULL;
1470
1471	/* If we are a multi part object, lets work our way through the check	1521	/* If we are a multi part object, lets work our way through the check
1472	* walk on's.	1522	* walk on's.
1473	*/	1523	*/
1474	for (tmp=op->more; tmp!=NULL; tmp=tmp->more)	1524	for (tmp = op->more; tmp != NULL; tmp = tmp->more)
1475	if (check_move_on (tmp, originator))	1525	if (check_move_on (tmp, originator))
1476	return NULL;	1526	return NULL;
1477	}	1527	}
		1528
1478	return op;	1529	return op;
1479	}	1530	}
1480		1531
1481	/* this function inserts an object in the map, but if it	1532	/* this function inserts an object in the map, but if it
1482	* finds an object of its own type, it'll remove that one first.	1533	* finds an object of its own type, it'll remove that one first.
1483	* op is the object to insert it under: supplies x and the map.	1534	* op is the object to insert it under: supplies x and the map.
1484	*/	1535	*/
		1536	void
1485	void replace_insert_ob_in_map(const char *arch_string, object *op) {	1537	replace_insert_ob_in_map (const char *arch_string, object *op)
		1538	{
1486	object *tmp;	1539	object *
1487	object *tmp1;	1540	tmp;
		1541	object *
		1542	tmp1;
1488		1543
1489	/* first search for itself and remove any old instances */	1544	/* first search for itself and remove any old instances */
1490		1545
1491	for(tmp=GET_MAP_OB(op->map,op->x,op->y); tmp!=NULL; tmp=tmp->above) {	1546	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)
1492	if(!strcmp(tmp->arch->name,arch_string)) /* same archetype */ {	1547	if (!strcmp (tmp->arch->name, arch_string)) /* same archetype */
1493	remove_ob(tmp);	1548	tmp->destroy ();
1494	free_object(tmp);
1495	}
1496	}
1497		1549
1498	tmp1=arch_to_object(find_archetype(arch_string));	1550	tmp1 = arch_to_object (archetype::find (arch_string));
1499		1551
1500		1552	tmp1->x = op->x;
1501	tmp1->x = op->x; tmp1->y = op->y;	1553	tmp1->y = op->y;
1502	insert_ob_in_map(tmp1,op->map,op,0);	1554	insert_ob_in_map (tmp1, op->map, op, 0);
1503	}	1555	}
1504		1556
1505	/*	1557	/*
1506	* get_split_ob(ob,nr) splits up ob into two parts. The part which	1558	* get_split_ob(ob,nr) splits up ob into two parts. The part which
1507	* is returned contains nr objects, and the remaining parts contains	1559	* is returned contains nr objects, and the remaining parts contains
1508	* the rest (or is removed and freed if that number is 0).	1560	* the rest (or is removed and freed if that number is 0).
1509	* On failure, NULL is returned, and the reason put into the	1561	* On failure, NULL is returned, and the reason put into the
1510	* global static errmsg array.	1562	* global static errmsg array.
1511	*/	1563	*/
1512		1564
		1565	object *
1513	object *get_split_ob(object *orig_ob, uint32 nr) {	1566	get_split_ob (object *orig_ob, uint32 nr)
		1567	{
1514	object *newob;	1568	object *newob;
1515	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);	1569	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);
1516		1570
1517	if(orig_ob->nrof<nr) {	1571	if (orig_ob->nrof < nr)
1518	sprintf(errmsg,"There are only %d %ss.",	1572	{
1519	orig_ob->nrof?orig_ob->nrof:1, &orig_ob->name);	1573	sprintf (errmsg, "There are only %d %ss.", orig_ob->nrof ? orig_ob->nrof : 1, &orig_ob->name);
1520	return NULL;	1574	return NULL;
1521	}	1575	}
		1576
1522	newob = object_create_clone(orig_ob);	1577	newob = object_create_clone (orig_ob);
		1578
1523	if((orig_ob->nrof-=nr)<1) {	1579	if ((orig_ob->nrof -= nr) < 1)
1524	if ( ! is_removed)	1580	orig_ob->destroy (1);
1525	remove_ob(orig_ob);
1526	free_object2(orig_ob, 1);
1527	}
1528	else if ( ! is_removed) {	1581	else if (!is_removed)
		1582	{
1529	if(orig_ob->env!=NULL)	1583	if (orig_ob->env != NULL)
1530	sub_weight (orig_ob->env,orig_ob->weight*nr);	1584	sub_weight (orig_ob->env, orig_ob->weight * nr);
1531	if (orig_ob->env == NULL && orig_ob->map->in_memory!=MAP_IN_MEMORY) {	1585	if (orig_ob->env == NULL && orig_ob->map->in_memory != MAP_IN_MEMORY)
		1586	{
1532	strcpy(errmsg, "Tried to split object whose map is not in memory.");	1587	strcpy (errmsg, "Tried to split object whose map is not in memory.");
1533	LOG(llevDebug,
1534	"Error, Tried to split object whose map is not in memory.\n");	1588	LOG (llevDebug, "Error, Tried to split object whose map is not in memory.\n");
1535	return NULL;	1589	return NULL;
1536	}	1590	}
1537	}	1591	}
		1592
1538	newob->nrof=nr;	1593	newob->nrof = nr;
1539		1594
1540	return newob;	1595	return newob;
1541	}	1596	}
1542		1597
1543	/*	1598	/*
1544	* decrease_ob_nr(object, number) decreases a specified number from	1599	* decrease_ob_nr(object, number) decreases a specified number from
1545	* the amount of an object. If the amount reaches 0, the object	1600	* the amount of an object. If the amount reaches 0, the object
1546	* is subsequently removed and freed.	1601	* is subsequently removed and freed.
1547	*	1602	*
1548	* Return value: 'op' if something is left, NULL if the amount reached 0	1603	* Return value: 'op' if something is left, NULL if the amount reached 0
1549	*/	1604	*/
1550		1605
		1606	object *
1551	object *decrease_ob_nr (object *op, uint32 i)	1607	decrease_ob_nr (object *op, uint32 i)
1552	{	1608	{
1553	object *tmp;	1609	object *tmp;
1554	player *pl;	1610	player *pl;
1555		1611
1556	if (i == 0) /* objects with op->nrof require this check */	1612	if (i == 0) /* objects with op->nrof require this check */
1557	return op;	1613	return op;
1558		1614
1559	if (i > op->nrof)	1615	if (i > op->nrof)
1560	i = op->nrof;	1616	i = op->nrof;
1561		1617
1562	if (QUERY_FLAG (op, FLAG_REMOVED))	1618	if (QUERY_FLAG (op, FLAG_REMOVED))
		1619	op->nrof -= i;
		1620	else if (op->env != NULL)
		1621	{
		1622	/* is this object in the players inventory, or sub container
		1623	* therein?
		1624	*/
		1625	tmp = is_player_inv (op->env);
		1626	/* nope. Is this a container the player has opened?
		1627	* If so, set tmp to that player.
		1628	* IMO, searching through all the players will mostly
		1629	* likely be quicker than following op->env to the map,
		1630	* and then searching the map for a player.
		1631	*/
		1632	if (!tmp)
		1633	{
		1634	for (pl = first_player; pl; pl = pl->next)
		1635	if (pl->ob->container == op->env)
		1636	break;
		1637	if (pl)
		1638	tmp = pl->ob;
		1639	else
		1640	tmp = NULL;
		1641	}
		1642
		1643	if (i < op->nrof)
		1644	{
		1645	sub_weight (op->env, op->weight * i);
		1646	op->nrof -= i;
		1647	if (tmp)
		1648	{
		1649	esrv_send_item (tmp, op);
		1650	}
		1651	}
		1652	else
		1653	{
		1654	op->remove ();
		1655	op->nrof = 0;
		1656	if (tmp)
		1657	{
		1658	esrv_del_item (tmp->contr, op->count);
		1659	}
		1660	}
1563	{	1661	}
		1662	else
		1663	{
		1664	object *above = op->above;
		1665
		1666	if (i < op->nrof)
1564	op->nrof -= i;	1667	op->nrof -= i;
1565	}	1668	else
1566	else if (op->env != NULL)
1567	{
1568	/* is this object in the players inventory, or sub container
1569	* therein?
1570	*/
1571	tmp = is_player_inv (op->env);
1572	/* nope. Is this a container the player has opened?
1573	* If so, set tmp to that player.
1574	* IMO, searching through all the players will mostly
1575	* likely be quicker than following op->env to the map,
1576	* and then searching the map for a player.
1577	*/
1578	if (!tmp) {
1579	for (pl=first_player; pl; pl=pl->next)
1580	if (pl->ob->container == op->env) break;
1581	if (pl) tmp=pl->ob;
1582	else tmp=NULL;
1583	}	1669	{
1584
1585	if (i < op->nrof) {
1586	sub_weight (op->env, op->weight * i);
1587	op->nrof -= i;
1588	if (tmp) {
1589	esrv_send_item(tmp, op);
1590	}
1591	} else {
1592	remove_ob (op);	1670	op->remove ();
1593	op->nrof = 0;	1671	op->nrof = 0;
1594	if (tmp) {
1595	esrv_del_item(tmp->contr, op->count);
1596	}	1672	}
1597	}
1598	}
1599	else
1600	{
1601	object *above = op->above;
1602		1673
1603	if (i < op->nrof) {
1604	op->nrof -= i;
1605	} else {
1606	remove_ob (op);
1607	op->nrof = 0;
1608	}
1609	/* Since we just removed op, op->above is null */	1674	/* Since we just removed op, op->above is null */
1610	for (tmp = above; tmp != NULL; tmp = tmp->above)	1675	for (tmp = above; tmp != NULL; tmp = tmp->above)
1611	if (tmp->type == PLAYER) {	1676	if (tmp->type == PLAYER)
		1677	{
1612	if (op->nrof)	1678	if (op->nrof)
1613	esrv_send_item(tmp, op);	1679	esrv_send_item (tmp, op);
1614	else	1680	else
1615	esrv_del_item(tmp->contr, op->count);	1681	esrv_del_item (tmp->contr, op->count);
1616	}	1682	}
1617	}	1683	}
1618		1684
1619	if (op->nrof) {	1685	if (op->nrof)
1620	return op;	1686	return op;
1621	} else {	1687	else
1622	free_object (op);	1688	{
		1689	op->destroy ();
1623	return NULL;	1690	return NULL;
1624	}	1691	}
1625	}	1692	}
1626		1693
1627	/*	1694	/*
1628	* add_weight(object, weight) adds the specified weight to an object,	1695	* add_weight(object, weight) adds the specified weight to an object,
1629	* and also updates how much the environment(s) is/are carrying.	1696	* and also updates how much the environment(s) is/are carrying.
1630	*/	1697	*/
1631		1698
		1699	void
1632	void add_weight (object *op, signed long weight) {	1700	add_weight (object *op, signed long weight)
		1701	{
1633	while (op!=NULL) {	1702	while (op != NULL)
		1703	{
1634	if (op->type == CONTAINER) {	1704	if (op->type == CONTAINER)
1635	weight=(signed long)(weight*(100-op->stats.Str)/100);	1705	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1636	}	1706
1637	op->carrying+=weight;	1707	op->carrying += weight;
1638	op=op->env;	1708	op = op->env;
1639	}	1709	}
1640	}	1710	}
1641		1711
		1712	object *
		1713	insert_ob_in_ob (object *op, object *where)
		1714	{
		1715	if (!where)
		1716	{
		1717	char *dump = dump_object (op);
		1718	LOG (llevError, "Trying to put object in NULL.\n%s\n", dump);
		1719	free (dump);
		1720	return op;
		1721	}
		1722
		1723	if (where->head)
		1724	{
		1725	LOG (llevDebug, "Warning: Tried to insert object into wrong part of multipart object.\n");
		1726	where = where->head;
		1727	}
		1728
		1729	return where->insert (op);
		1730	}
		1731
1642	/*	1732	/*
1643	* insert_ob_in_ob(op,environment):	1733	* env->insert (op)
1644	* This function inserts the object op in the linked list	1734	* This function inserts the object op in the linked list
1645	* inside the object environment.	1735	* inside the object environment.
1646	*	1736	*
1647	* Eneq(@csd.uu.se): Altered insert_ob_in_ob to make things picked up enter
1648	* the inventory at the last position or next to other objects of the same
1649	* type.
1650	* Frank: Now sorted by type, archetype and magic!
1651	*
1652	* The function returns now pointer to inserted item, and return value can	1737	* The function returns now pointer to inserted item, and return value can
1653	* be != op, if items are merged. -Tero	1738	* be != op, if items are merged. -Tero
1654	*/	1739	*/
1655		1740
1656	object *insert_ob_in_ob(object *op,object *where) {	1741	object *
		1742	object::insert (object *op)
		1743	{
1657	object *tmp, *otmp;	1744	object *tmp, *otmp;
1658		1745
1659	if(!QUERY_FLAG(op,FLAG_REMOVED)) {	1746	if (!QUERY_FLAG (op, FLAG_REMOVED))
1660	dump_object(op);	1747	op->remove ();
1661	LOG(llevError,"Trying to insert (ob) inserted object.\n%s\n", errmsg);	1748
1662	return op;
1663	}
1664	if(where==NULL) {
1665	dump_object(op);
1666	LOG(llevError,"Trying to put object in NULL.\n%s\n", errmsg);
1667	return op;
1668	}
1669	if (where->head) {
1670	LOG(llevDebug,
1671	"Warning: Tried to insert object wrong part of multipart object.\n");
1672	where = where->head;
1673	}
1674	if (op->more) {	1749	if (op->more)
		1750	{
1675	LOG(llevError, "Tried to insert multipart object %s (%d)\n",	1751	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);
1676	&op->name, op->count);
1677	return op;	1752	return op;
1678	}	1753	}
		1754
1679	CLEAR_FLAG(op, FLAG_OBJ_ORIGINAL);	1755	CLEAR_FLAG (op, FLAG_OBJ_ORIGINAL);
1680	CLEAR_FLAG(op, FLAG_REMOVED);	1756	CLEAR_FLAG (op, FLAG_REMOVED);
1681	if(op->nrof) {	1757	if (op->nrof)
		1758	{
1682	for(tmp=where->inv;tmp!=NULL;tmp=tmp->below)	1759	for (tmp = inv; tmp != NULL; tmp = tmp->below)
1683	if ( CAN_MERGE(tmp,op) ) {	1760	if (object::can_merge (tmp, op))
		1761	{
1684	/* return the original object and remove inserted object	1762	/* return the original object and remove inserted object
1685	(client needs the original object) */	1763	(client needs the original object) */
1686	tmp->nrof += op->nrof;	1764	tmp->nrof += op->nrof;
1687	/* Weight handling gets pretty funky. Since we are adding to	1765	/* Weight handling gets pretty funky. Since we are adding to
1688	* tmp->nrof, we need to increase the weight.	1766	* tmp->nrof, we need to increase the weight.
1689	*/	1767	*/
1690	add_weight (where, op->weight*op->nrof);	1768	add_weight (this, op->weight * op->nrof);
1691	SET_FLAG(op, FLAG_REMOVED);	1769	SET_FLAG (op, FLAG_REMOVED);
1692	free_object(op); /* free the inserted object */	1770	op->destroy (); /* free the inserted object */
1693	op = tmp;	1771	op = tmp;
1694	remove_ob (op); /* and fix old object's links */	1772	op->remove (); /* and fix old object's links */
1695	CLEAR_FLAG(op, FLAG_REMOVED);	1773	CLEAR_FLAG (op, FLAG_REMOVED);
1696	break;	1774	break;
1697	}	1775	}
1698		1776
1699	/* I assume combined objects have no inventory	1777	/* I assume combined objects have no inventory
1700	* We add the weight - this object could have just been removed	1778	* We add the weight - this object could have just been removed
1701	* (if it was possible to merge). calling remove_ob will subtract	1779	* (if it was possible to merge). calling remove_ob will subtract
1702	* the weight, so we need to add it in again, since we actually do	1780	* the weight, so we need to add it in again, since we actually do
1703	* the linking below	1781	* the linking below
1704	*/	1782	*/
1705	add_weight (where, op->weight*op->nrof);	1783	add_weight (this, op->weight * op->nrof);
		1784	}
1706	} else	1785	else
1707	add_weight (where, (op->weight+op->carrying));	1786	add_weight (this, (op->weight + op->carrying));
1708		1787
1709	otmp=is_player_inv(where);	1788	otmp = is_player_inv (this);
1710	if (otmp&&otmp->contr!=NULL) {	1789	if (otmp && otmp->contr)
1711	if (!QUERY_FLAG(otmp,FLAG_NO_FIX_PLAYER))	1790	if (!QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1712	fix_player(otmp);	1791	fix_player (otmp);
1713	}
1714		1792
1715	op->map=NULL;	1793	op->map = NULL;
1716	op->env=where;	1794	op->env = this;
1717	op->above=NULL;	1795	op->above = NULL;
1718	op->below=NULL;	1796	op->below = NULL;
1719	op->x=0,op->y=0;	1797	op->x = 0, op->y = 0;
1720		1798
1721	/* reset the light list and los of the players on the map */	1799	/* reset the light list and los of the players on the map */
1722	if((op->glow_radius!=0)&&where->map)	1800	if ((op->glow_radius != 0) && map)
1723	{	1801	{
1724	#ifdef DEBUG_LIGHTS	1802	#ifdef DEBUG_LIGHTS
1725	LOG(llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n",	1803	LOG (llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n", op->name);
1726	op->name);
1727	#endif /* DEBUG_LIGHTS */	1804	#endif /* DEBUG_LIGHTS */
1728	if (MAP_DARKNESS(where->map)) update_all_los(where->map, where->x, where->y);	1805	if (MAP_DARKNESS (map))
		1806	update_all_los (map, x, y);
1729	}	1807	}
1730		1808
1731	/* Client has no idea of ordering so lets not bother ordering it here.	1809	/* Client has no idea of ordering so lets not bother ordering it here.
1732	* It sure simplifies this function...	1810	* It sure simplifies this function...
1733	*/	1811	*/
1734	if (where->inv==NULL)	1812	if (!inv)
1735	where->inv=op;	1813	inv = op;
1736	else {	1814	else
		1815	{
1737	op->below = where->inv;	1816	op->below = inv;
1738	op->below->above = op;	1817	op->below->above = op;
1739	where->inv = op;	1818	inv = op;
1740	}	1819	}
		1820
1741	return op;	1821	return op;
1742	}	1822	}
1743		1823
1744	/*	1824	/*
1745	* Checks if any objects has a move_type that matches objects	1825	* Checks if any objects has a move_type that matches objects
…		…
1760	* MSW 2001-07-08: Check all objects on space, not just those below	1840	* MSW 2001-07-08: Check all objects on space, not just those below
1761	* object being inserted. insert_ob_in_map may not put new objects	1841	* object being inserted. insert_ob_in_map may not put new objects
1762	* on top.	1842	* on top.
1763	*/	1843	*/
1764		1844
		1845	int
1765	int check_move_on (object *op, object *originator)	1846	check_move_on (object *op, object *originator)
1766	{	1847	{
1767	object *tmp;	1848	object *tmp;
1768	tag_t tag;
1769	mapstruct *m=op->map;	1849	maptile *m = op->map;
1770	int x=op->x, y=op->y;	1850	int x = op->x, y = op->y;
		1851
1771	MoveType move_on, move_slow, move_block;	1852	MoveType move_on, move_slow, move_block;
1772		1853
1773	if(QUERY_FLAG(op,FLAG_NO_APPLY))	1854	if (QUERY_FLAG (op, FLAG_NO_APPLY))
1774	return 0;	1855	return 0;
1775		1856
1776	tag = op->count;
1777
1778	move_on = GET_MAP_MOVE_ON(op->map, op->x, op->y);	1857	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);
1779	move_slow = GET_MAP_MOVE_SLOW(op->map, op->x, op->y);	1858	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);
1780	move_block = GET_MAP_MOVE_BLOCK(op->map, op->x, op->y);	1859	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);
1781		1860
1782	/* if nothing on this space will slow op down or be applied,	1861	/* if nothing on this space will slow op down or be applied,
1783	* no need to do checking below. have to make sure move_type	1862	* no need to do checking below. have to make sure move_type
1784	* is set, as lots of objects don't have it set - we treat that	1863	* is set, as lots of objects don't have it set - we treat that
1785	* as walking.	1864	* as walking.
1786	*/	1865	*/
1787	if (op->move_type && !(op->move_type & move_on) && !(op->move_type & move_slow))	1866	if (op->move_type && !(op->move_type & move_on) && !(op->move_type & move_slow))
1788	return 0;	1867	return 0;
1789		1868
1790	/* This is basically inverse logic of that below - basically,	1869	/* This is basically inverse logic of that below - basically,
1791	* if the object can avoid the move on or slow move, they do so,	1870	* if the object can avoid the move on or slow move, they do so,
1792	* but can't do it if the alternate movement they are using is	1871	* but can't do it if the alternate movement they are using is
1793	* blocked. Logic on this seems confusing, but does seem correct.	1872	* blocked. Logic on this seems confusing, but does seem correct.
1794	*/	1873	*/
1795	if ((op->move_type & ~move_on & ~move_block) != 0 &&	1874	if ((op->move_type & ~move_on & ~move_block) != 0 && (op->move_type & ~move_slow & ~move_block) != 0)
1796	(op->move_type & ~move_slow & ~move_block) != 0) return 0;	1875	return 0;
1797		1876
1798	/* The objects have to be checked from top to bottom.	1877	/* The objects have to be checked from top to bottom.
1799	* Hence, we first go to the top:	1878	* Hence, we first go to the top:
1800	*/	1879	*/
1801		1880
1802	for (tmp=GET_MAP_OB(op->map, op->x, op->y); tmp!=NULL &&	1881	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL && tmp->above != NULL; tmp = tmp->above)
1803	tmp->above!=NULL; tmp=tmp->above) {	1882	{
1804	/* Trim the search when we find the first other spell effect	1883	/* Trim the search when we find the first other spell effect
1805	* this helps performance so that if a space has 50 spell objects,	1884	* this helps performance so that if a space has 50 spell objects,
1806	* we don't need to check all of them.	1885	* we don't need to check all of them.
1807	*/	1886	*/
1808	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG(tmp, FLAG_NO_PICK)) break;	1887	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG (tmp, FLAG_NO_PICK))
		1888	break;
		1889	}
		1890
		1891	for (; tmp; tmp = tmp->below)
1809	}	1892	{
1810	for(;tmp!=NULL; tmp=tmp->below) {	1893	if (tmp == op)
1811	if (tmp == op) continue; /* Can't apply yourself */	1894	continue; /* Can't apply yourself */
1812		1895
1813	/* Check to see if one of the movement types should be slowed down.	1896	/* Check to see if one of the movement types should be slowed down.
1814	* Second check makes sure that the movement types not being slowed	1897	* Second check makes sure that the movement types not being slowed
1815	* (~slow_move) is not blocked on this space - just because the	1898	* (~slow_move) is not blocked on this space - just because the
1816	* space doesn't slow down swimming (for example), if you can't actually	1899	* space doesn't slow down swimming (for example), if you can't actually
1817	* swim on that space, can't use it to avoid the penalty.	1900	* swim on that space, can't use it to avoid the penalty.
1818	*/	1901	*/
1819	if (!QUERY_FLAG(op, FLAG_WIZPASS)) {	1902	if (!QUERY_FLAG (op, FLAG_WIZPASS))
		1903	{
1820	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||	1904	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||
1821	((op->move_type & tmp->move_slow) &&
1822	(op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0)) {	1905	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))
		1906	{
1823		1907
1824	float diff;	1908	float
1825
1826	diff = tmp->move_slow_penalty*FABS(op->speed);	1909	diff = tmp->move_slow_penalty * FABS (op->speed);
		1910
1827	if (op->type == PLAYER) {	1911	if (op->type == PLAYER)
1828	if ((QUERY_FLAG(tmp, FLAG_IS_HILLY) && find_skill_by_number(op, SK_CLIMBING)) ||	1912	if ((QUERY_FLAG (tmp, FLAG_IS_HILLY) && find_skill_by_number (op, SK_CLIMBING)) ||
1829	(QUERY_FLAG(tmp, FLAG_IS_WOODED) && find_skill_by_number(op, SK_WOODSMAN))) {	1913	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))
1830	diff /= 4.0;	1914	diff /= 4.0;
1831	}	1915
1832	}
1833	op->speed_left -= diff;	1916	op->speed_left -= diff;
1834	}	1917	}
1835	}	1918	}
1836		1919
1837	/* Basically same logic as above, except now for actual apply. */	1920	/* Basically same logic as above, except now for actual apply. */
1838	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||	1921	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||
1839	((op->move_type & tmp->move_on) &&
1840	(op->move_type & ~tmp->move_on & ~tmp->move_block)==0)) {	1922	((op->move_type & tmp->move_on) && (op->move_type & ~tmp->move_on & ~tmp->move_block) == 0))
1841		1923	{
1842	move_apply(tmp, op, originator);	1924	move_apply (tmp, op, originator);
		1925
1843	if (was_destroyed (op, tag))	1926	if (op->destroyed ())
1844	return 1;	1927	return 1;
1845		1928
1846	/* what the person/creature stepped onto has moved the object	1929	/* what the person/creature stepped onto has moved the object
1847	* someplace new. Don't process any further - if we did,	1930	* someplace new. Don't process any further - if we did,
1848	* have a feeling strange problems would result.	1931	* have a feeling strange problems would result.
1849	*/	1932	*/
1850	if (op->map != m || op->x != x || op->y != y) return 0;	1933	if (op->map != m || op->x != x || op->y != y)
		1934	return 0;
1851	}	1935	}
1852	}	1936	}
		1937
1853	return 0;	1938	return 0;
1854	}	1939	}
1855		1940
1856	/*	1941	/*
1857	* present_arch(arch, map, x, y) searches for any objects with	1942	* present_arch(arch, map, x, y) searches for any objects with
1858	* a matching archetype at the given map and coordinates.	1943	* a matching archetype at the given map and coordinates.
1859	* The first matching object is returned, or NULL if none.	1944	* The first matching object is returned, or NULL if none.
1860	*/	1945	*/
1861		1946
		1947	object *
1862	object *present_arch(const archetype *at, mapstruct *m, int x, int y) {	1948	present_arch (const archetype *at, maptile *m, int x, int y)
		1949	{
1863	object *tmp;	1950	object *
		1951	tmp;
		1952
1864	if(m==NULL || out_of_map(m,x,y)) {	1953	if (m == NULL || out_of_map (m, x, y))
		1954	{
1865	LOG(llevError,"Present_arch called outside map.\n");	1955	LOG (llevError, "Present_arch called outside map.\n");
1866	return NULL;	1956	return NULL;
1867	}	1957	}
1868	for(tmp=GET_MAP_OB(m,x,y); tmp != NULL; tmp = tmp->above)	1958	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)
1869	if(tmp->arch == at)	1959	if (tmp->arch == at)
1870	return tmp;	1960	return tmp;
1871	return NULL;	1961	return NULL;
1872	}	1962	}
1873		1963
1874	/*	1964	/*
1875	* present(type, map, x, y) searches for any objects with	1965	* present(type, map, x, y) searches for any objects with
1876	* a matching type variable at the given map and coordinates.	1966	* a matching type variable at the given map and coordinates.
1877	* The first matching object is returned, or NULL if none.	1967	* The first matching object is returned, or NULL if none.
1878	*/	1968	*/
1879		1969
		1970	object *
1880	object *present(unsigned char type,mapstruct *m, int x,int y) {	1971	present (unsigned char type, maptile *m, int x, int y)
		1972	{
1881	object *tmp;	1973	object *
		1974	tmp;
		1975
1882	if(out_of_map(m,x,y)) {	1976	if (out_of_map (m, x, y))
		1977	{
1883	LOG(llevError,"Present called outside map.\n");	1978	LOG (llevError, "Present called outside map.\n");
1884	return NULL;	1979	return NULL;
1885	}	1980	}
1886	for(tmp=GET_MAP_OB(m,x,y);tmp!=NULL;tmp=tmp->above)	1981	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)
1887	if(tmp->type==type)	1982	if (tmp->type == type)
1888	return tmp;	1983	return tmp;
1889	return NULL;	1984	return NULL;
1890	}	1985	}
1891		1986
1892	/*	1987	/*
1893	* present_in_ob(type, object) searches for any objects with	1988	* present_in_ob(type, object) searches for any objects with
1894	* a matching type variable in the inventory of the given object.	1989	* a matching type variable in the inventory of the given object.
1895	* The first matching object is returned, or NULL if none.	1990	* The first matching object is returned, or NULL if none.
1896	*/	1991	*/
1897		1992
		1993	object *
1898	object *present_in_ob(unsigned char type, const object *op) {	1994	present_in_ob (unsigned char type, const object *op)
		1995	{
1899	object *tmp;	1996	object *
		1997	tmp;
		1998
1900	for(tmp=op->inv;tmp!=NULL;tmp=tmp->below)	1999	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)
1901	if(tmp->type==type)	2000	if (tmp->type == type)
1902	return tmp;	2001	return tmp;
1903	return NULL;	2002	return NULL;
1904	}	2003	}
1905		2004
1906	/*	2005	/*
…		…
1916	* the object name, not the archetype name. this is so that the	2015	* the object name, not the archetype name. this is so that the
1917	* spell code can use one object type (force), but change it's name	2016	* spell code can use one object type (force), but change it's name
1918	* to be unique.	2017	* to be unique.
1919	*/	2018	*/
1920		2019
		2020	object *
1921	object *present_in_ob_by_name(int type, const char *str, const object *op) {	2021	present_in_ob_by_name (int type, const char *str, const object *op)
		2022	{
1922	object *tmp;	2023	object *
		2024	tmp;
1923		2025
1924	for(tmp=op->inv; tmp!=NULL; tmp=tmp->below) {	2026	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)
		2027	{
1925	if ((type==-1 || tmp->type==type) && (!strcmp(str, tmp->name)))	2028	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))
1926	return tmp;	2029	return tmp;
1927	}	2030	}
1928	return NULL;	2031	return NULL;
1929	}	2032	}
1930		2033
1931	/*	2034	/*
1932	* present_arch_in_ob(archetype, object) searches for any objects with	2035	* present_arch_in_ob(archetype, object) searches for any objects with
1933	* a matching archetype in the inventory of the given object.	2036	* a matching archetype in the inventory of the given object.
1934	* The first matching object is returned, or NULL if none.	2037	* The first matching object is returned, or NULL if none.
1935	*/	2038	*/
1936		2039
		2040	object *
1937	object *present_arch_in_ob(const archetype *at, const object *op) {	2041	present_arch_in_ob (const archetype *at, const object *op)
		2042	{
1938	object *tmp;	2043	object *
		2044	tmp;
		2045
1939	for(tmp=op->inv;tmp!=NULL;tmp=tmp->below)	2046	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)
1940	if( tmp->arch == at)	2047	if (tmp->arch == at)
1941	return tmp;	2048	return tmp;
1942	return NULL;	2049	return NULL;
1943	}	2050	}
1944		2051
1945	/*	2052	/*
1946	* activate recursively a flag on an object inventory	2053	* activate recursively a flag on an object inventory
1947	*/	2054	*/
		2055	void
1948	void flag_inv(object*op, int flag){	2056	flag_inv (object *op, int flag)
		2057	{
1949	object *tmp;	2058	object *
		2059	tmp;
		2060
1950	if(op->inv)	2061	if (op->inv)
1951	for(tmp = op->inv; tmp != NULL; tmp = tmp->below){	2062	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)
		2063	{
1952	SET_FLAG(tmp, flag);	2064	SET_FLAG (tmp, flag);
1953	flag_inv(tmp,flag);	2065	flag_inv (tmp, flag);
1954	}	2066	}
1955	}/*	2067	} /*
1956	* desactivate recursively a flag on an object inventory	2068	* desactivate recursively a flag on an object inventory
1957	*/	2069	*/
		2070	void
1958	void unflag_inv(object*op, int flag){	2071	unflag_inv (object *op, int flag)
		2072	{
1959	object *tmp;	2073	object *
		2074	tmp;
		2075
1960	if(op->inv)	2076	if (op->inv)
1961	for(tmp = op->inv; tmp != NULL; tmp = tmp->below){	2077	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)
		2078	{
1962	CLEAR_FLAG(tmp, flag);	2079	CLEAR_FLAG (tmp, flag);
1963	unflag_inv(tmp,flag);	2080	unflag_inv (tmp, flag);
1964	}	2081	}
1965	}	2082	}
1966		2083
1967	/*	2084	/*
1968	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in	2085	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in
1969	* all it's inventory (recursively).	2086	* all it's inventory (recursively).
1970	* If checksums are used, a player will get set_cheat called for	2087	* If checksums are used, a player will get set_cheat called for
1971	* him/her-self and all object carried by a call to this function.	2088	* him/her-self and all object carried by a call to this function.
1972	*/	2089	*/
1973		2090
		2091	void
1974	void set_cheat(object *op) {	2092	set_cheat (object *op)
		2093	{
1975	SET_FLAG(op, FLAG_WAS_WIZ);	2094	SET_FLAG (op, FLAG_WAS_WIZ);
1976	flag_inv(op, FLAG_WAS_WIZ);	2095	flag_inv (op, FLAG_WAS_WIZ);
1977	}	2096	}
1978		2097
1979	/*	2098	/*
1980	* find_free_spot(object, map, x, y, start, stop) will search for	2099	* find_free_spot(object, map, x, y, start, stop) will search for
1981	* a spot at the given map and coordinates which will be able to contain	2100	* a spot at the given map and coordinates which will be able to contain
…		…
1996	* to know if the space in question will block the object. We can't use	2115	* to know if the space in question will block the object. We can't use
1997	* the archetype because that isn't correct if the monster has been	2116	* the archetype because that isn't correct if the monster has been
1998	* customized, changed states, etc.	2117	* customized, changed states, etc.
1999	*/	2118	*/
2000		2119
		2120	int
2001	int find_free_spot(const object *ob, mapstruct *m,int x,int y,int start,int stop) {	2121	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)
		2122	{
		2123	int
		2124	i,
2002	int i,index=0, flag;	2125	index = 0, flag;
		2126	static int
2003	static int altern[SIZEOFFREE];	2127	altern[SIZEOFFREE];
2004		2128
2005	for(i=start;i<stop;i++) {	2129	for (i = start; i < stop; i++)
		2130	{
2006	flag = ob_blocked(ob,m,x+freearr_x[i],y+freearr_y[i]);	2131	flag = ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]);
2007	if(!flag)	2132	if (!flag)
2008	altern[index++]=i;	2133	altern[index++] = i;
2009		2134
2010	/* Basically, if we find a wall on a space, we cut down the search size.	2135	/* Basically, if we find a wall on a space, we cut down the search size.
2011	* In this way, we won't return spaces that are on another side of a wall.	2136	* In this way, we won't return spaces that are on another side of a wall.
2012	* This mostly work, but it cuts down the search size in all directions -	2137	* This mostly work, but it cuts down the search size in all directions -
2013	* if the space being examined only has a wall to the north and empty	2138	* if the space being examined only has a wall to the north and empty
2014	* spaces in all the other directions, this will reduce the search space	2139	* spaces in all the other directions, this will reduce the search space
2015	* to only the spaces immediately surrounding the target area, and	2140	* to only the spaces immediately surrounding the target area, and
2016	* won't look 2 spaces south of the target space.	2141	* won't look 2 spaces south of the target space.
2017	*/	2142	*/
2018	else if ((flag & AB_NO_PASS) && maxfree[i]<stop)	2143	else if ((flag & AB_NO_PASS) && maxfree[i] < stop)
2019	stop=maxfree[i];	2144	stop = maxfree[i];
2020	}	2145	}
2021	if(!index) return -1;	2146	if (!index)
		2147	return -1;
2022	return altern[RANDOM()%index];	2148	return altern[RANDOM () % index];
2023	}	2149	}
2024		2150
2025	/*	2151	/*
2026	* find_first_free_spot(archetype, mapstruct, x, y) works like	2152	* find_first_free_spot(archetype, maptile, x, y) works like
2027	* find_free_spot(), but it will search max number of squares.	2153	* find_free_spot(), but it will search max number of squares.
2028	* But it will return the first available spot, not a random choice.	2154	* But it will return the first available spot, not a random choice.
2029	* Changed 0.93.2: Have it return -1 if there is no free spot available.	2155	* Changed 0.93.2: Have it return -1 if there is no free spot available.
2030	*/	2156	*/
2031		2157
		2158	int
2032	int find_first_free_spot(const object *ob, mapstruct *m,int x,int y) {	2159	find_first_free_spot (const object *ob, maptile *m, int x, int y)
		2160	{
		2161	int
2033	int i;	2162	i;
		2163
2034	for(i=0;i<SIZEOFFREE;i++) {	2164	for (i = 0; i < SIZEOFFREE; i++)
		2165	{
2035	if(!ob_blocked(ob,m,x+freearr_x[i],y+freearr_y[i]))	2166	if (!ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]))
2036	return i;	2167	return i;
2037	}	2168	}
2038	return -1;	2169	return -1;
2039	}	2170	}
2040		2171
2041	/*	2172	/*
2042	* The function permute(arr, begin, end) randomly reorders the array	2173	* The function permute(arr, begin, end) randomly reorders the array
2043	* arr[begin..end-1].	2174	* arr[begin..end-1].
2044	*/	2175	*/
		2176	static void
2045	static void permute(int *arr, int begin, int end)	2177	permute (int *arr, int begin, int end)
2046	{	2178	{
2047	int i, j, tmp, len;	2179	int
		2180	i,
		2181	j,
		2182	tmp,
		2183	len;
2048		2184
2049	len = end-begin;	2185	len = end - begin;
2050	for(i = begin; i < end; i++)	2186	for (i = begin; i < end; i++)
2051	{	2187	{
2052	j = begin+RANDOM()%len;	2188	j = begin + RANDOM () % len;
2053		2189
2054	tmp = arr[i];	2190	tmp = arr[i];
2055	arr[i] = arr[j];	2191	arr[i] = arr[j];
2056	arr[j] = tmp;	2192	arr[j] = tmp;
2057	}	2193	}
2058	}	2194	}
2059		2195
2060	/* new function to make monster searching more efficient, and effective!	2196	/* new function to make monster searching more efficient, and effective!
2061	* This basically returns a randomized array (in the passed pointer) of	2197	* This basically returns a randomized array (in the passed pointer) of
2062	* the spaces to find monsters. In this way, it won't always look for	2198	* the spaces to find monsters. In this way, it won't always look for
2063	* monsters to the north first. However, the size of the array passed	2199	* monsters to the north first. However, the size of the array passed
2064	* covers all the spaces, so within that size, all the spaces within	2200	* covers all the spaces, so within that size, all the spaces within
2065	* the 3x3 area will be searched, just not in a predictable order.	2201	* the 3x3 area will be searched, just not in a predictable order.
2066	*/	2202	*/
		2203	void
2067	void get_search_arr(int *search_arr)	2204	get_search_arr (int *search_arr)
2068	{	2205	{
		2206	int
2069	int i;	2207	i;
2070		2208
2071	for(i = 0; i < SIZEOFFREE; i++)	2209	for (i = 0; i < SIZEOFFREE; i++)
2072	{	2210	{
2073	search_arr[i] = i;	2211	search_arr[i] = i;
2074	}	2212	}
2075		2213
2076	permute(search_arr, 1, SIZEOFFREE1+1);	2214	permute (search_arr, 1, SIZEOFFREE1 + 1);
2077	permute(search_arr, SIZEOFFREE1+1, SIZEOFFREE2+1);	2215	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);
2078	permute(search_arr, SIZEOFFREE2+1, SIZEOFFREE);	2216	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);
2079	}	2217	}
2080		2218
2081	/*	2219	/*
2082	* find_dir(map, x, y, exclude) will search some close squares in the	2220	* find_dir(map, x, y, exclude) will search some close squares in the
2083	* given map at the given coordinates for live objects.	2221	* given map at the given coordinates for live objects.
…		…
2089	* is actually want is going to try and move there. We need this info	2227	* is actually want is going to try and move there. We need this info
2090	* because we have to know what movement the thing looking to move	2228	* because we have to know what movement the thing looking to move
2091	* there is capable of.	2229	* there is capable of.
2092	*/	2230	*/
2093		2231
		2232	int
2094	int find_dir(mapstruct *m, int x, int y, object *exclude) {	2233	find_dir (maptile *m, int x, int y, object *exclude)
		2234	{
		2235	int
		2236	i,
2095	int i,max=SIZEOFFREE, mflags;	2237	max = SIZEOFFREE, mflags;
		2238
2096	sint16 nx, ny;	2239	sint16 nx, ny;
2097	object *tmp;	2240	object *
2098	mapstruct *mp;	2241	tmp;
		2242	maptile *
		2243	mp;
		2244
2099	MoveType blocked, move_type;	2245	MoveType blocked, move_type;
2100		2246
2101	if (exclude && exclude->head) {	2247	if (exclude && exclude->head)
		2248	{
2102	exclude = exclude->head;	2249	exclude = exclude->head;
2103	move_type = exclude->move_type;	2250	move_type = exclude->move_type;
2104	} else {	2251	}
		2252	else
		2253	{
2105	/* If we don't have anything, presume it can use all movement types. */	2254	/* If we don't have anything, presume it can use all movement types. */
2106	move_type=MOVE_ALL;	2255	move_type = MOVE_ALL;
		2256	}
		2257
		2258	for (i = 1; i < max; i++)
2107	}	2259	{
2108
2109	for(i=1;i<max;i++) {
2110	mp = m;	2260	mp = m;
2111	nx = x + freearr_x[i];	2261	nx = x + freearr_x[i];
2112	ny = y + freearr_y[i];	2262	ny = y + freearr_y[i];
2113		2263
2114	mflags = get_map_flags(m, &mp, nx, ny, &nx, &ny);	2264	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);
2115	if (mflags & P_OUT_OF_MAP) {	2265	if (mflags & P_OUT_OF_MAP)
		2266	{
2116	max = maxfree[i];	2267	max = maxfree[i];
		2268	}
2117	} else {	2269	else
		2270	{
2118	blocked = GET_MAP_MOVE_BLOCK(mp, nx, ny);	2271	blocked = GET_MAP_MOVE_BLOCK (mp, nx, ny);
2119		2272
2120	if ((move_type & blocked) == move_type) {	2273	if ((move_type & blocked) == move_type)
		2274	{
2121	max=maxfree[i];	2275	max = maxfree[i];
		2276	}
2122	} else if (mflags & P_IS_ALIVE) {	2277	else if (mflags & P_IS_ALIVE)
		2278	{
2123	for (tmp=GET_MAP_OB(mp,nx,ny); tmp!= NULL; tmp=tmp->above) {	2279	for (tmp = GET_MAP_OB (mp, nx, ny); tmp != NULL; tmp = tmp->above)
2124	if ((QUERY_FLAG(tmp,FLAG_MONSTER) || tmp->type==PLAYER) &&	2280	{
2125	(tmp != exclude ||(tmp->head && tmp->head != exclude))) {	2281	if ((QUERY_FLAG (tmp, FLAG_MONSTER) || tmp->type == PLAYER) && (tmp != exclude || (tmp->head && tmp->head != exclude)))
		2282	{
2126	break;	2283	break;
2127	}	2284	}
2128	}	2285	}
2129	if(tmp) {	2286	if (tmp)
		2287	{
2130	return freedir[i];	2288	return freedir[i];
2131	}	2289	}
2132	}	2290	}
2133	}	2291	}
2134	}	2292	}
2135	return 0;	2293	return 0;
2136	}	2294	}
2137		2295
2138	/*	2296	/*
2139	* distance(object 1, object 2) will return the square of the	2297	* distance(object 1, object 2) will return the square of the
2140	* distance between the two given objects.	2298	* distance between the two given objects.
2141	*/	2299	*/
2142		2300
		2301	int
2143	int distance(const object *ob1, const object *ob2) {	2302	distance (const object *ob1, const object *ob2)
		2303	{
2144	int i;	2304	int
2145	i= (ob1->x - ob2->x)*(ob1->x - ob2->x)+	2305	i;
2146	(ob1->y - ob2->y)*(ob1->y - ob2->y);	2306
		2307	i = (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);
2147	return i;	2308	return i;
2148	}	2309	}
2149		2310
2150	/*	2311	/*
2151	* find_dir_2(delta-x,delta-y) will return a direction in which	2312	* find_dir_2(delta-x,delta-y) will return a direction in which
2152	* an object which has subtracted the x and y coordinates of another	2313	* an object which has subtracted the x and y coordinates of another
2153	* object, needs to travel toward it.	2314	* object, needs to travel toward it.
2154	*/	2315	*/
2155		2316
		2317	int
2156	int find_dir_2(int x, int y) {	2318	find_dir_2 (int x, int y)
		2319	{
2157	int q;	2320	int
		2321	q;
2158		2322
2159	if(y)	2323	if (y)
2160	q=x*100/y;	2324	q = x * 100 / y;
2161	else if (x)	2325	else if (x)
2162	q= -300*x;	2326	q = -300 * x;
2163	else	2327	else
2164	return 0;	2328	return 0;
2165		2329
2166	if(y>0) {	2330	if (y > 0)
		2331	{
2167	if(q < -242)	2332	if (q < -242)
2168	return 3 ;	2333	return 3;
2169	if (q < -41)	2334	if (q < -41)
2170	return 2 ;	2335	return 2;
2171	if (q < 41)	2336	if (q < 41)
2172	return 1 ;	2337	return 1;
2173	if (q < 242)	2338	if (q < 242)
2174	return 8 ;	2339	return 8;
2175	return 7 ;	2340	return 7;
2176	}	2341	}
2177		2342
2178	if (q < -242)	2343	if (q < -242)
2179	return 7 ;	2344	return 7;
2180	if (q < -41)	2345	if (q < -41)
2181	return 6 ;	2346	return 6;
2182	if (q < 41)	2347	if (q < 41)
2183	return 5 ;	2348	return 5;
2184	if (q < 242)	2349	if (q < 242)
2185	return 4 ;	2350	return 4;
2186		2351
2187	return 3 ;	2352	return 3;
2188	}	2353	}
2189		2354
2190	/*	2355	/*
2191	* absdir(int): Returns a number between 1 and 8, which represent	2356	* absdir(int): Returns a number between 1 and 8, which represent
2192	* the "absolute" direction of a number (it actually takes care of	2357	* the "absolute" direction of a number (it actually takes care of
2193	* "overflow" in previous calculations of a direction).	2358	* "overflow" in previous calculations of a direction).
2194	*/	2359	*/
2195		2360
		2361	int
2196	int absdir(int d) {	2362	absdir (int d)
2197	while(d<1) d+=8;	2363	{
2198	while(d>8) d-=8;	2364	while (d < 1)
		2365	d += 8;
		2366	while (d > 8)
		2367	d -= 8;
2199	return d;	2368	return d;
2200	}	2369	}
2201		2370
2202	/*	2371	/*
2203	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is	2372	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is
2204	* between two directions (which are expected to be absolute (see absdir())	2373	* between two directions (which are expected to be absolute (see absdir())
2205	*/	2374	*/
2206		2375
		2376	int
2207	int dirdiff(int dir1, int dir2) {	2377	dirdiff (int dir1, int dir2)
		2378	{
2208	int d;	2379	int
		2380	d;
		2381
2209	d = abs(dir1 - dir2);	2382	d = abs (dir1 - dir2);
2210	if(d>4)	2383	if (d > 4)
2211	d = 8 - d;	2384	d = 8 - d;
2212	return d;	2385	return d;
2213	}	2386	}
2214		2387
2215	/* peterm:	2388	/* peterm:
…		…
2220	* direction 4, 14, or 16 to get back to where we are.	2393	* direction 4, 14, or 16 to get back to where we are.
2221	* Moved from spell_util.c to object.c with the other related direction	2394	* Moved from spell_util.c to object.c with the other related direction
2222	* functions.	2395	* functions.
2223	*/	2396	*/
2224		2397
		2398	int
2225	int reduction_dir[SIZEOFFREE][3] = {	2399	reduction_dir[SIZEOFFREE][3] = {
2226	{0,0,0}, /* 0 */	2400	{0, 0, 0}, /* 0 */
2227	{0,0,0}, /* 1 */	2401	{0, 0, 0}, /* 1 */
2228	{0,0,0}, /* 2 */	2402	{0, 0, 0}, /* 2 */
2229	{0,0,0}, /* 3 */	2403	{0, 0, 0}, /* 3 */
2230	{0,0,0}, /* 4 */	2404	{0, 0, 0}, /* 4 */
2231	{0,0,0}, /* 5 */	2405	{0, 0, 0}, /* 5 */
2232	{0,0,0}, /* 6 */	2406	{0, 0, 0}, /* 6 */
2233	{0,0,0}, /* 7 */	2407	{0, 0, 0}, /* 7 */
2234	{0,0,0}, /* 8 */	2408	{0, 0, 0}, /* 8 */
2235	{8,1,2}, /* 9 */	2409	{8, 1, 2}, /* 9 */
2236	{1,2,-1}, /* 10 */	2410	{1, 2, -1}, /* 10 */
2237	{2,10,12}, /* 11 */	2411	{2, 10, 12}, /* 11 */
2238	{2,3,-1}, /* 12 */	2412	{2, 3, -1}, /* 12 */
2239	{2,3,4}, /* 13 */	2413	{2, 3, 4}, /* 13 */
2240	{3,4,-1}, /* 14 */	2414	{3, 4, -1}, /* 14 */
2241	{4,14,16}, /* 15 */	2415	{4, 14, 16}, /* 15 */
2242	{5,4,-1}, /* 16 */	2416	{5, 4, -1}, /* 16 */
2243	{4,5,6}, /* 17 */	2417	{4, 5, 6}, /* 17 */
2244	{6,5,-1}, /* 18 */	2418	{6, 5, -1}, /* 18 */
2245	{6,20,18}, /* 19 */	2419	{6, 20, 18}, /* 19 */
2246	{7,6,-1}, /* 20 */	2420	{7, 6, -1}, /* 20 */
2247	{6,7,8}, /* 21 */	2421	{6, 7, 8}, /* 21 */
2248	{7,8,-1}, /* 22 */	2422	{7, 8, -1}, /* 22 */
2249	{8,22,24}, /* 23 */	2423	{8, 22, 24}, /* 23 */
2250	{8,1,-1}, /* 24 */	2424	{8, 1, -1}, /* 24 */
2251	{24,9,10}, /* 25 */	2425	{24, 9, 10}, /* 25 */
2252	{9,10,-1}, /* 26 */	2426	{9, 10, -1}, /* 26 */
2253	{10,11,-1}, /* 27 */	2427	{10, 11, -1}, /* 27 */
2254	{27,11,29}, /* 28 */	2428	{27, 11, 29}, /* 28 */
2255	{11,12,-1}, /* 29 */	2429	{11, 12, -1}, /* 29 */
2256	{12,13,-1}, /* 30 */	2430	{12, 13, -1}, /* 30 */
2257	{12,13,14}, /* 31 */	2431	{12, 13, 14}, /* 31 */
2258	{13,14,-1}, /* 32 */	2432	{13, 14, -1}, /* 32 */
2259	{14,15,-1}, /* 33 */	2433	{14, 15, -1}, /* 33 */
2260	{33,15,35}, /* 34 */	2434	{33, 15, 35}, /* 34 */
2261	{16,15,-1}, /* 35 */	2435	{16, 15, -1}, /* 35 */
2262	{17,16,-1}, /* 36 */	2436	{17, 16, -1}, /* 36 */
2263	{18,17,16}, /* 37 */	2437	{18, 17, 16}, /* 37 */
2264	{18,17,-1}, /* 38 */	2438	{18, 17, -1}, /* 38 */
2265	{18,19,-1}, /* 39 */	2439	{18, 19, -1}, /* 39 */
2266	{41,19,39}, /* 40 */	2440	{41, 19, 39}, /* 40 */
2267	{19,20,-1}, /* 41 */	2441	{19, 20, -1}, /* 41 */
2268	{20,21,-1}, /* 42 */	2442	{20, 21, -1}, /* 42 */
2269	{20,21,22}, /* 43 */	2443	{20, 21, 22}, /* 43 */
2270	{21,22,-1}, /* 44 */	2444	{21, 22, -1}, /* 44 */
2271	{23,22,-1}, /* 45 */	2445	{23, 22, -1}, /* 45 */
2272	{45,47,23}, /* 46 */	2446	{45, 47, 23}, /* 46 */
2273	{23,24,-1}, /* 47 */	2447	{23, 24, -1}, /* 47 */
2274	{24,9,-1}}; /* 48 */	2448	{24, 9, -1}
		2449	}; /* 48 */
2275		2450
2276	/* Recursive routine to step back and see if we can	2451	/* Recursive routine to step back and see if we can
2277	* find a path to that monster that we found. If not,	2452	* find a path to that monster that we found. If not,
2278	* we don't bother going toward it. Returns 1 if we	2453	* we don't bother going toward it. Returns 1 if we
2279	* can see a direct way to get it	2454	* can see a direct way to get it
2280	* Modified to be map tile aware -.MSW	2455	* Modified to be map tile aware -.MSW
2281	*/	2456	*/
2282
2283		2457
		2458
		2459	int
2284	int can_see_monsterP(mapstruct *m, int x, int y,int dir) {	2460	can_see_monsterP (maptile *m, int x, int y, int dir)
		2461	{
2285	sint16 dx, dy;	2462	sint16 dx, dy;
		2463	int
2286	int mflags;	2464	mflags;
2287		2465
		2466	if (dir < 0)
2288	if(dir<0) return 0; /* exit condition: invalid direction */	2467	return 0; /* exit condition: invalid direction */
2289		2468
2290	dx = x + freearr_x[dir];	2469	dx = x + freearr_x[dir];
2291	dy = y + freearr_y[dir];	2470	dy = y + freearr_y[dir];
2292		2471
2293	mflags = get_map_flags(m, &m, dx, dy, &dx, &dy);	2472	mflags = get_map_flags (m, &m, dx, dy, &dx, &dy);
2294		2473
2295	/* This functional arguably was incorrect before - it was	2474	/* This functional arguably was incorrect before - it was
2296	* checking for P_WALL - that was basically seeing if	2475	* checking for P_WALL - that was basically seeing if
2297	* we could move to the monster - this is being more	2476	* we could move to the monster - this is being more
2298	* literal on if we can see it. To know if we can actually	2477	* literal on if we can see it. To know if we can actually
2299	* move to the monster, we'd need the monster passed in or	2478	* move to the monster, we'd need the monster passed in or
2300	* at least its move type.	2479	* at least its move type.
2301	*/	2480	*/
2302	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW)) return 0;	2481	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW))
		2482	return 0;
2303		2483
2304	/* yes, can see. */	2484	/* yes, can see. */
2305	if(dir < 9) return 1;	2485	if (dir < 9)
		2486	return 1;
2306	return can_see_monsterP(m, x, y, reduction_dir[dir][0]) |	2487	return can_see_monsterP (m, x, y, reduction_dir[dir][0]) |
2307	can_see_monsterP(m,x,y, reduction_dir[dir][1]) |	2488	can_see_monsterP (m, x, y, reduction_dir[dir][1]) | can_see_monsterP (m, x, y, reduction_dir[dir][2]);
2308	can_see_monsterP(m,x,y, reduction_dir[dir][2]);
2309	}	2489	}
2310		2490
2311		2491
2312		2492
2313	/*	2493	/*
2314	* can_pick(picker, item): finds out if an object is possible to be	2494	* can_pick(picker, item): finds out if an object is possible to be
2315	* picked up by the picker. Returnes 1 if it can be	2495	* picked up by the picker. Returnes 1 if it can be
2316	* picked up, otherwise 0.	2496	* picked up, otherwise 0.
2317	*	2497	*
…		…
2319	* core dumps if they do.	2499	* core dumps if they do.
2320	*	2500	*
2321	* Add a check so we can't pick up invisible objects (0.93.8)	2501	* Add a check so we can't pick up invisible objects (0.93.8)
2322	*/	2502	*/
2323		2503
		2504	int
2324	int can_pick(const object *who, const object *item) {	2505	can_pick (const object *who, const object *item)
		2506	{
2325	return /*QUERY_FLAG(who,FLAG_WIZ)||*/	2507	return /*QUERY_FLAG(who,FLAG_WIZ)|| */
2326	(item->weight>0&&!QUERY_FLAG(item,FLAG_NO_PICK)&&	2508	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&
2327	!QUERY_FLAG(item,FLAG_ALIVE)&&!item->invisible &&	2509	!QUERY_FLAG (item, FLAG_ALIVE) && !item->invisible && (who->type == PLAYER || item->weight < who->weight / 3));
2328	(who->type==PLAYER||item->weight<who->weight/3));
2329	}	2510	}
2330		2511
2331		2512
2332	/*	2513	/*
2333	* create clone from object to another	2514	* create clone from object to another
2334	*/	2515	*/
		2516	object *
2335	object *object_create_clone (object *asrc) {	2517	object_create_clone (object *asrc)
		2518	{
2336	object *dst = NULL,*tmp,*src,*part,*prev, *item;	2519	object *dst = 0, *tmp, *src, *part, *prev, *item;
2337		2520
2338	if(!asrc) return NULL;	2521	if (!asrc)
		2522	return 0;
		2523
2339	src = asrc;	2524	src = asrc;
2340	if(src->head)	2525	if (src->head)
2341	src = src->head;	2526	src = src->head;
2342		2527
2343	prev = NULL;	2528	prev = 0;
2344	for(part = src; part; part = part->more) {	2529	for (part = src; part; part = part->more)
2345	tmp = get_object();	2530	{
2346	copy_object(part,tmp);	2531	tmp = part->clone ();
2347	tmp->x -= src->x;	2532	tmp->x -= src->x;
2348	tmp->y -= src->y;	2533	tmp->y -= src->y;
		2534
2349	if(!part->head) {	2535	if (!part->head)
		2536	{
2350	dst = tmp;	2537	dst = tmp;
2351	tmp->head = NULL;	2538	tmp->head = 0;
		2539	}
2352	} else {	2540	else
		2541	{
2353	tmp->head = dst;	2542	tmp->head = dst;
2354	}	2543	}
		2544
2355	tmp->more = NULL;	2545	tmp->more = 0;
		2546
2356	if(prev)	2547	if (prev)
2357	prev->more = tmp;	2548	prev->more = tmp;
		2549
2358	prev = tmp;	2550	prev = tmp;
2359	}	2551	}
2360	/*** copy inventory ***/	2552
2361	for(item = src->inv; item; item = item->below) {	2553	for (item = src->inv; item; item = item->below)
2362	(void) insert_ob_in_ob(object_create_clone(item),dst);	2554	insert_ob_in_ob (object_create_clone (item), dst);
2363	}
2364		2555
2365	return dst;	2556	return dst;
2366	}
2367
2368	/* return true if the object was destroyed, 0 otherwise */
2369	int was_destroyed (const object *op, tag_t old_tag)
2370	{
2371	/* checking for FLAG_FREED isn't necessary, but makes this function more
2372	* robust */
2373	return op->count != old_tag || QUERY_FLAG (op, FLAG_FREED);
2374	}	2557	}
2375		2558
2376	/* GROS - Creates an object using a string representing its content. */	2559	/* GROS - Creates an object using a string representing its content. */
2377	/* Basically, we save the content of the string to a temp file, then call */	2560	/* Basically, we save the content of the string to a temp file, then call */
2378	/* load_object on it. I admit it is a highly inefficient way to make things, */	2561	/* load_object on it. I admit it is a highly inefficient way to make things, */
2379	/* but it was simple to make and allows reusing the load_object function. */	2562	/* but it was simple to make and allows reusing the load_object function. */
2380	/* Remember not to use load_object_str in a time-critical situation. */	2563	/* Remember not to use load_object_str in a time-critical situation. */
2381	/* Also remember that multiparts objects are not supported for now. */	2564	/* Also remember that multiparts objects are not supported for now. */
2382		2565
		2566	object *
2383	object* load_object_str(const char *obstr)	2567	load_object_str (const char *obstr)
2384	{	2568	{
2385	object *op;	2569	object *op;
2386	char filename[MAX_BUF];	2570	char filename[MAX_BUF];
		2571
2387	sprintf(filename,"%s/cfloadobstr2044",settings.tmpdir);	2572	sprintf (filename, "%s/cfloadobstr2044", settings.tmpdir);
2388		2573
2389	FILE *tempfile=fopen(filename,"w");	2574	FILE *tempfile = fopen (filename, "w");
		2575
2390	if (tempfile == NULL)	2576	if (tempfile == NULL)
2391	{	2577	{
2392	LOG(llevError,"Error - Unable to access load object temp file\n");	2578	LOG (llevError, "Error - Unable to access load object temp file\n");
2393	return NULL;	2579	return NULL;
2394	};	2580	}
		2581
2395	fprintf(tempfile,obstr);	2582	fprintf (tempfile, obstr);
2396	fclose(tempfile);	2583	fclose (tempfile);
2397		2584
2398	op=get_object();	2585	op = object::create ();
2399		2586
2400	object_thawer thawer (filename);	2587	object_thawer thawer (filename);
2401		2588
2402	if (thawer)	2589	if (thawer)
2403	load_object(thawer,op,0);	2590	load_object (thawer, op, 0);
2404		2591
2405	LOG(llevDebug," load str completed, object=%s\n", &op->name);	2592	LOG (llevDebug, " load str completed, object=%s\n", &op->name);
2406	CLEAR_FLAG(op,FLAG_REMOVED);	2593	CLEAR_FLAG (op, FLAG_REMOVED);
2407		2594
2408	return op;	2595	return op;
2409	}	2596	}
2410		2597
2411	/* This returns the first object in who's inventory that	2598	/* This returns the first object in who's inventory that
2412	* has the same type and subtype match.	2599	* has the same type and subtype match.
2413	* returns NULL if no match.	2600	* returns NULL if no match.
2414	*/	2601	*/
		2602	object *
2415	object *find_obj_by_type_subtype(const object *who, int type, int subtype)	2603	find_obj_by_type_subtype (const object *who, int type, int subtype)
2416	{	2604	{
2417	object *tmp;	2605	object *tmp;
2418		2606
2419	for (tmp=who->inv; tmp; tmp=tmp->below)	2607	for (tmp = who->inv; tmp; tmp = tmp->below)
2420	if (tmp->type == type && tmp->subtype == subtype) return tmp;	2608	if (tmp->type == type && tmp->subtype == subtype)
		2609	return tmp;
2421		2610
2422	return NULL;	2611	return NULL;
2423	}	2612	}
2424		2613
2425	/* If ob has a field named key, return the link from the list,	2614	/* If ob has a field named key, return the link from the list,
2426	* otherwise return NULL.	2615	* otherwise return NULL.
2427	*	2616	*
2428	* key must be a passed in shared string - otherwise, this won't	2617	* key must be a passed in shared string - otherwise, this won't
2429	* do the desired thing.	2618	* do the desired thing.
2430	*/	2619	*/
		2620	key_value *
2431	key_value * get_ob_key_link(const object * ob, const char * key) {	2621	get_ob_key_link (const object *ob, const char *key)
		2622	{
2432	key_value * link;	2623	key_value *link;
2433		2624
2434	for (link = ob->key_values; link != NULL; link = link->next) {	2625	for (link = ob->key_values; link != NULL; link = link->next)
2435	if (link->key == key) {	2626	if (link->key == key)
2436	return link;	2627	return link;
2437	}	2628
2438	}
2439
2440	return NULL;	2629	return NULL;
2441	}	2630	}
2442		2631
2443	/*	2632	/*
2444	* Returns the value of op has an extra_field for key, or NULL.	2633	* Returns the value of op has an extra_field for key, or NULL.
2445	*	2634	*
2446	* The argument doesn't need to be a shared string.	2635	* The argument doesn't need to be a shared string.
2447	*	2636	*
2448	* The returned string is shared.	2637	* The returned string is shared.
2449	*/	2638	*/
		2639	const char *
2450	const char * get_ob_key_value(const object * op, const char * const key) {	2640	get_ob_key_value (const object *op, const char *const key)
		2641	{
2451	key_value * link;	2642	key_value *link;
2452	const char * canonical_key;	2643	shstr_cmp canonical_key (key);
		2644
		2645	if (!canonical_key)
2453		2646	{
2454	canonical_key = shstr::find (key);
2455
2456	if (canonical_key == NULL) {
2457	/* 1. There being a field named key on any object	2647	/* 1. There being a field named key on any object
2458	* implies there'd be a shared string to find.	2648	* implies there'd be a shared string to find.
2459	* 2. Since there isn't, no object has this field.	2649	* 2. Since there isn't, no object has this field.
2460	* 3. Therefore, *this* object doesn't have this field.	2650	* 3. Therefore, *this* object doesn't have this field.
2461	*/	2651	*/
2462	return NULL;	2652	return 0;
2463	}	2653	}
2464		2654
2465	/* This is copied from get_ob_key_link() above -	2655	/* This is copied from get_ob_key_link() above -
2466	* only 4 lines, and saves the function call overhead.	2656	* only 4 lines, and saves the function call overhead.
2467	*/	2657	*/
2468	for (link = op->key_values; link != NULL; link = link->next) {	2658	for (link = op->key_values; link; link = link->next)
2469	if (link->key == canonical_key) {	2659	if (link->key == canonical_key)
2470	return link->value;	2660	return link->value;
2471	}	2661
2472	}	2662	return 0;
2473	return NULL;
2474	}	2663	}
2475		2664
2476		2665
2477	/*	2666	/*
2478	* Updates the canonical_key in op to value.	2667	* Updates the canonical_key in op to value.
…		…
2482	* Unless add_key is TRUE, it won't add fields, only change the value of existing	2671	* Unless add_key is TRUE, it won't add fields, only change the value of existing
2483	* keys.	2672	* keys.
2484	*	2673	*
2485	* Returns TRUE on success.	2674	* Returns TRUE on success.
2486	*/	2675	*/
		2676	int
2487	int set_ob_key_value_s(object * op, const shstr &canonical_key, const char * value, int add_key) {	2677	set_ob_key_value_s (object *op, const shstr & canonical_key, const char *value, int add_key)
		2678	{
		2679	key_value *
2488	key_value * field = NULL, *last=NULL;	2680	field = NULL, *last = NULL;
2489		2681
2490	for (field=op->key_values; field != NULL; field=field->next) {	2682	for (field = op->key_values; field != NULL; field = field->next)
		2683	{
2491	if (field->key != canonical_key) {	2684	if (field->key != canonical_key)
		2685	{
2492	last = field;	2686	last = field;
2493	continue;	2687	continue;
2494	}	2688	}
2495		2689
2496	if (value)	2690	if (value)
2497	field->value = value;	2691	field->value = value;
2498	else {	2692	else
		2693	{
2499	/* Basically, if the archetype has this key set,	2694	/* Basically, if the archetype has this key set,
2500	* we need to store the null value so when we save	2695	* we need to store the null value so when we save
2501	* it, we save the empty value so that when we load,	2696	* it, we save the empty value so that when we load,
2502	* we get this value back again.	2697	* we get this value back again.
2503	*/	2698	*/
2504	if (get_ob_key_link (&op->arch->clone, canonical_key))	2699	if (get_ob_key_link (&op->arch->clone, canonical_key))
2505	field->value = 0;	2700	field->value = 0;
		2701	else
		2702	{
		2703	if (last)
		2704	last->next = field->next;
2506	else	2705	else
2507	{
2508	if (last) last->next = field->next;
2509	else op->key_values = field->next;	2706	op->key_values = field->next;
2510		2707
2511	delete field;	2708	delete field;
2512	}	2709	}
2513	}	2710	}
2514	return TRUE;	2711	return TRUE;
2515	}	2712	}
2516	/* IF we get here, key doesn't exist */	2713	/* IF we get here, key doesn't exist */
2517		2714
2518	/* No field, we'll have to add it. */	2715	/* No field, we'll have to add it. */
		2716
		2717	if (!add_key)
2519		2718	{
2520	if (!add_key) {
2521	return FALSE;	2719	return FALSE;
2522	}	2720	}
2523	/* There isn't any good reason to store a null	2721	/* There isn't any good reason to store a null
2524	* value in the key/value list. If the archetype has	2722	* value in the key/value list. If the archetype has
2525	* this key, then we should also have it, so shouldn't	2723	* this key, then we should also have it, so shouldn't
2526	* be here. If user wants to store empty strings,	2724	* be here. If user wants to store empty strings,
2527	* should pass in ""	2725	* should pass in ""
2528	*/	2726	*/
2529	if (value == NULL) return TRUE;	2727	if (value == NULL)
2530
2531	field = new key_value;
2532
2533	field->key = canonical_key;
2534	field->value = value;
2535	/* Usual prepend-addition. */
2536	field->next = op->key_values;
2537	op->key_values = field;
2538
2539	return TRUE;	2728	return TRUE;
		2729
		2730	field = new key_value;
		2731
		2732	field->key = canonical_key;
		2733	field->value = value;
		2734	/* Usual prepend-addition. */
		2735	field->next = op->key_values;
		2736	op->key_values = field;
		2737
		2738	return TRUE;
2540	}	2739	}
2541		2740
2542	/*	2741	/*
2543	* Updates the key in op to value.	2742	* Updates the key in op to value.
2544	*	2743	*
…		…
2546	* and not add new ones.	2745	* and not add new ones.
2547	* In general, should be little reason FALSE is ever passed in for add_key	2746	* In general, should be little reason FALSE is ever passed in for add_key
2548	*	2747	*
2549	* Returns TRUE on success.	2748	* Returns TRUE on success.
2550	*/	2749	*/
		2750	int
2551	int set_ob_key_value(object * op, const char *key, const char * value, int add_key)	2751	set_ob_key_value (object *op, const char *key, const char *value, int add_key)
2552	{	2752	{
2553	shstr key_ (key);	2753	shstr key_ (key);
		2754
2554	return set_ob_key_value_s (op, key_, value, add_key);	2755	return set_ob_key_value_s (op, key_, value, add_key);
2555	}	2756	}
		2757
		2758	object::depth_iterator::depth_iterator (object *container)
		2759	: iterator_base (container)
		2760	{
		2761	while (item->inv)
		2762	item = item->inv;
		2763	}
		2764
		2765	void
		2766	object::depth_iterator::next ()
		2767	{
		2768	if (item->below)
		2769	{
		2770	item = item->below;
		2771
		2772	while (item->inv)
		2773	item = item->inv;
		2774	}
		2775	else
		2776	item = item->env;
		2777	}
		2778
		2779	// return a suitable string describing an objetc in enough detail to find it
		2780	const char *
		2781	object::debug_desc (char *info) const
		2782	{
		2783	char info2[256 * 3];
		2784	char *p = info;
		2785
		2786	p += snprintf (p, 256, "%d=\"%s%s%s\"",
		2787	count,
		2788	&name,
		2789	title ? " " : "",
		2790	title ? (const char *)title : "");
		2791
		2792	if (env)
		2793	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));
		2794
		2795	if (map)
		2796	p += snprintf (p, 256, "(on %s@%d+%d)", map->path, x, y);
		2797
		2798	return info;
		2799	}
		2800
		2801	const char *
		2802	object::debug_desc () const
		2803	{
		2804	static char info[256 * 3];
		2805	return debug_desc (info);
		2806	}
		2807

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