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Comparing deliantra/server/common/object.C (file contents):
Revision 1.22 by root, Sun Sep 10 00:51:23 2006 UTC vs.
Revision 1.57 by root, Sun Dec 3 02:46:33 2006 UTC

1	/*
2	* static char *rcsid_object_c =
3	* "$Id: object.C,v 1.22 2006/09/10 00:51:23 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
42	int nrofallocobjects = 0;	35	int nrofallocobjects = 0;
		36	static UUID uuid;
		37	const uint64 UUID_SKIP = 1<<19;
43		38
44	object *objects; /* Pointer to the list of used objects */
45	object *active_objects; /* List of active objects that need to be processed */	39	object *active_objects; /* List of active objects that need to be processed */
46		40
47	short freearr_x[SIZEOFFREE]=	41	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};	42	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]=	43	};
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,	44	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};	45	-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]=	46	};
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,	47	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};	48	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
		49	};
56	int freedir[SIZEOFFREE]= {	50	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,	51	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};	52	1, 2, 2, 2, 2, 2, 3, 4, 4, 4, 4, 4, 5, 6, 6, 6, 6, 6, 7, 8, 8, 8, 8, 8
		53	};
		54
		55	static void
		56	write_uuid (void)
		57	{
		58	char filename1[MAX_BUF], filename2[MAX_BUF];
		59
		60	sprintf (filename1, "%s/uuid", settings.localdir);
		61	sprintf (filename2, "%s/uuid~", settings.localdir);
		62
		63	FILE *fp;
		64
		65	if (!(fp = fopen (filename2, "w")))
		66	{
		67	LOG (llevError, "ERROR: cannot open %s for writing, unable to write UUID!\n", filename2);
		68	return;
		69	}
		70
		71	fprintf (fp, "<1,%llx>\n", (unsigned long long)uuid.seq + UUID_SKIP * 2);
		72	fclose (fp);
		73	rename (filename2, filename1);
		74	}
		75
		76	static void
		77	read_uuid (void)
		78	{
		79	char filename[MAX_BUF];
		80
		81	sprintf (filename, "%s/uuid", settings.localdir);
		82
		83	FILE *fp;
		84
		85	if (!(fp = fopen (filename, "r")))
		86	{
		87	if (errno == ENOENT)
		88	{
		89	LOG (llevInfo, "RESET uid to 1\n");
		90	uuid.seq = 0;
		91	write_uuid ();
		92	return;
		93	}
		94
		95	LOG (llevError, "FATAL: cannot open %s for reading!\n", filename);
		96	_exit (1);
		97	}
		98
		99	int version;
		100	unsigned long long uid;
		101	if (2 != fscanf (fp, "<%d,%llx>\n", &version, &uid) || version != 1)
		102	{
		103	LOG (llevError, "FATAL: error reading uid from %s!\n", filename);
		104	_exit (1);
		105	}
		106
		107	uuid.seq = uid;
		108	write_uuid ();
		109	LOG (llevDebug, "read UID: %lld\n", uid);
		110	fclose (fp);
		111	}
		112
		113	UUID
		114	gen_uuid ()
		115	{
		116	UUID uid;
		117
		118	uid.seq = ++uuid.seq;
		119
		120	if (!(uuid.seq & (UUID_SKIP - 1)))
		121	write_uuid ();
		122
		123	return uid;
		124	}
		125
		126	void
		127	init_uuid ()
		128	{
		129	read_uuid ();
		130	}
59		131
60	/* Returns TRUE if every key_values in wants has a partner with the same value in has. */	132	/* Returns TRUE if every key_values in wants has a partner with the same value in has. */
		133	static int
61	static int compare_ob_value_lists_one(const object * wants, const object * has) {	134	compare_ob_value_lists_one (const object *wants, const object *has)
		135	{
62	key_value * wants_field;	136	key_value *wants_field;
63		137
64	/* n-squared behaviour (see get_ob_key_link()), but I'm hoping both	138	/* 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	139	* objects with lists are rare, and lists stay short. If not, use a
66	* different structure or at least keep the lists sorted...	140	* different structure or at least keep the lists sorted...
67	*/	141	*/
68		142
69	/* For each field in wants, */	143	/* For each field in wants, */
70	for (wants_field = wants->key_values; wants_field != NULL; wants_field = wants_field->next) {	144	for (wants_field = wants->key_values; wants_field != NULL; wants_field = wants_field->next)
		145	{
71	key_value * has_field;	146	key_value *has_field;
72		147
73	/* Look for a field in has with the same key. */	148	/* Look for a field in has with the same key. */
74	has_field = get_ob_key_link(has, wants_field->key);	149	has_field = get_ob_key_link (has, wants_field->key);
		150
		151	if (has_field == NULL)
75		152	{
76	if (has_field == NULL) {
77	/* No field with that name. */	153	/* No field with that name. */
78	return FALSE;	154	return FALSE;
79	}
80		155	}
		156
81	/* Found the matching field. */	157	/* Found the matching field. */
82	if (has_field->value != wants_field->value) {	158	if (has_field->value != wants_field->value)
		159	{
83	/* Values don't match, so this half of the comparison is false. */	160	/* Values don't match, so this half of the comparison is false. */
84	return FALSE;	161	return FALSE;
85	}	162	}
86		163
87	/* If we get here, we found a match. Now for the next field in wants. */	164	/* If we get here, we found a match. Now for the next field in wants. */
88	}
89		165	}
		166
90	/* If we get here, every field in wants has a matching field in has. */	167	/* If we get here, every field in wants has a matching field in has. */
91	return TRUE;	168	return TRUE;
92	}	169	}
93		170
94	/* Returns TRUE if ob1 has the same key_values as ob2. */	171	/* Returns TRUE if ob1 has the same key_values as ob2. */
		172	static int
95	static int compare_ob_value_lists(const object * ob1, const object * ob2) {	173	compare_ob_value_lists (const object *ob1, const object *ob2)
		174	{
96	/* However, there may be fields in has which aren't partnered in wants,	175	/* However, there may be fields in has which aren't partnered in wants,
97	* so we need to run the comparison *twice*. :(	176	* so we need to run the comparison *twice*. :(
98	*/	177	*/
99	return compare_ob_value_lists_one(ob1, ob2) && compare_ob_value_lists_one(ob2, ob1);	178	return compare_ob_value_lists_one (ob1, ob2) && compare_ob_value_lists_one (ob2, ob1);
100	}	179	}
101		180
102	/* Function examines the 2 objects given to it, and returns true if	181	/* Function examines the 2 objects given to it, and returns true if
103	* they can be merged together.	182	* they can be merged together.
104	*	183	*
…		…
110	*	189	*
111	* Improvements made with merge: Better checking on potion, and also	190	* Improvements made with merge: Better checking on potion, and also
112	* check weight	191	* check weight
113	*/	192	*/
114		193
115	bool
116	object::can_merge (object *ob1, object *ob2)	194	bool object::can_merge (object *ob1, object *ob2)
117	{	195	{
118	/* A couple quicksanity checks */	196	/* A couple quicksanity checks */
119	if ((ob1 == ob2) || (ob1->type != ob2->type))	197	if ((ob1 == ob2) || (ob1->type != ob2->type))
120	return 0;	198	return 0;
121		199
…		…
169	(ob1->subtype != ob2->subtype) ||	247	(ob1->subtype != ob2->subtype) ||
170	(ob1->move_type != ob2->move_type) ||	248	(ob1->move_type != ob2->move_type) ||
171	(ob1->move_block != ob2->move_block) ||	249	(ob1->move_block != ob2->move_block) ||
172	(ob1->move_allow != ob2->move_allow) ||	250	(ob1->move_allow != ob2->move_allow) ||
173	(ob1->move_on != ob2->move_on) ||	251	(ob1->move_on != ob2->move_on) ||
174	(ob1->move_off != ob2->move_off) ||	252	(ob1->move_off != ob2->move_off) || (ob1->move_slow != ob2->move_slow) || (ob1->move_slow_penalty != ob2->move_slow_penalty))
175	(ob1->move_slow != ob2->move_slow) ||
176	(ob1->move_slow_penalty != ob2->move_slow_penalty))
177	return 0;	253	return 0;
178		254
179	/* This is really a spellbook check - really, we should	255	/* This is really a spellbook check - really, we should
180	* check all objects in the inventory.	256	* check all objects in the inventory.
181	*/	257	*/
182	if (ob1->inv || ob2->inv)	258	if (ob1->inv || ob2->inv)
183	{	259	{
184	/* if one object has inventory but the other doesn't, not equiv */	260	/* if one object has inventory but the other doesn't, not equiv */
185	if ((ob1->inv && !ob2->inv) || (ob2->inv && !ob1->inv))	261	if ((ob1->inv && !ob2->inv) || (ob2->inv && !ob1->inv))
186	return 0;	262	return 0;
187		263
188	/* Now check to see if the two inventory objects could merge */	264	/* Now check to see if the two inventory objects could merge */
189	if (!CAN_MERGE (ob1->inv, ob2->inv))	265	if (!CAN_MERGE (ob1->inv, ob2->inv))
190	return 0;	266	return 0;
191		267
192	/* inventory ok - still need to check rest of this object to see	268	/* inventory ok - still need to check rest of this object to see
193	* if it is valid.	269	* if it is valid.
194	*/	270	*/
195	}	271	}
…		…
203		279
204	/* Note sure why the following is the case - either the object has to	280	/* 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	281	* be animated or have a very low speed. Is this an attempted monster
206	* check?	282	* check?
207	*/	283	*/
208	if (!QUERY_FLAG (ob1, FLAG_ANIMATE)	284	if (!QUERY_FLAG (ob1, FLAG_ANIMATE) && FABS ((ob1)->speed) > MIN_ACTIVE_SPEED)
209	&& FABS ((ob1)->speed) > MIN_ACTIVE_SPEED)
210	return 0;	285	return 0;
211		286
212	switch (ob1->type)	287	switch (ob1->type)
213	{	288	{
214	case SCROLL:	289	case SCROLL:
215	if (ob1->level != ob2->level)	290	if (ob1->level != ob2->level)
216	return 0;	291	return 0;
217	break;	292	break;
218	}	293	}
219		294
220	if (ob1->key_values != NULL || ob2->key_values != NULL)	295	if (ob1->key_values != NULL || ob2->key_values != NULL)
221	{	296	{
222	/* At least one of these has key_values. */	297	/* At least one of these has key_values. */
223	if ((ob1->key_values == NULL) != (ob2->key_values == NULL))	298	if ((ob1->key_values == NULL) != (ob2->key_values == NULL))
224	/* One has fields, but the other one doesn't. */	299	/* One has fields, but the other one doesn't. */
225	return 0;	300	return 0;
226	else if (!compare_ob_value_lists (ob1, ob2))	301	else if (!compare_ob_value_lists (ob1, ob2))
227	return 0;	302	return 0;
228	}	303	}
229		304
230	//TODO: generate an event or call into perl for additional checks	305	//TODO: generate an event or call into perl for additional checks
231	if (ob1->self || ob2->self)	306	if (ob1->self || ob2->self)
232	{	307	{
233	ob1->optimise ();	308	ob1->optimise ();
234	ob2->optimise ();	309	ob2->optimise ();
235		310
236	if (ob1->self || ob2->self)	311	if (ob1->self || ob2->self)
237	return 0;	312	return 0;
238	}	313	}
239		314
240	/* Everything passes, must be OK. */	315	/* Everything passes, must be OK. */
241	return 1;	316	return 1;
242	}	317	}
		318
243	/*	319	/*
244	* sum_weight() is a recursive function which calculates the weight	320	* sum_weight() is a recursive function which calculates the weight
245	* an object is carrying. It goes through in figures out how much	321	* an object is carrying. It goes through in figures out how much
246	* containers are carrying, and sums it up.	322	* containers are carrying, and sums it up.
247	*/	323	*/
248	signed long sum_weight(object *op) {	324	long
		325	sum_weight (object *op)
		326	{
249	signed long sum;	327	long sum;
250	object *inv;	328	object *inv;
		329
251	for(sum = 0, inv = op->inv; inv != NULL; inv = inv->below) {	330	for (sum = 0, inv = op->inv; inv != NULL; inv = inv->below)
		331	{
252	if (inv->inv)	332	if (inv->inv)
253	sum_weight(inv);	333	sum_weight (inv);
254	sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1);	334	sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1);
255	}	335	}
		336
256	if (op->type == CONTAINER && op->stats.Str)	337	if (op->type == CONTAINER && op->stats.Str)
257	sum = (sum * (100 - op->stats.Str))/100;	338	sum = (sum * (100 - op->stats.Str)) / 100;
		339
258	if(op->carrying != sum)	340	if (op->carrying != sum)
259	op->carrying = sum;	341	op->carrying = sum;
		342
260	return sum;	343	return sum;
261	}	344	}
262		345
263	/**	346	/**
264	* Return the outermost environment object for a given object.	347	* Return the outermost environment object for a given object.
265	*/	348	*/
266		349
		350	object *
267	object *object_get_env_recursive (object *op) {	351	object_get_env_recursive (object *op)
		352	{
268	while (op->env != NULL)	353	while (op->env != NULL)
269	op = op->env;	354	op = op->env;
270	return op;	355	return op;
271	}	356	}
272		357
273	/*	358	/*
274	* Eneq(@csd.uu.se): Since we can have items buried in a character we need	359	* 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	360	* a better check. We basically keeping traversing up until we can't
276	* or find a player.	361	* or find a player.
277	*/	362	*/
278		363
		364	object *
279	object *is_player_inv (object *op) {	365	is_player_inv (object *op)
		366	{
280	for (;op!=NULL&&op->type!=PLAYER; op=op->env)	367	for (; op != NULL && op->type != PLAYER; op = op->env)
281	if (op->env==op)	368	if (op->env == op)
282	op->env = NULL;	369	op->env = NULL;
283	return op;	370	return op;
284	}	371	}
285		372
286	/*	373	/*
287	* Used by: Crossedit: dump. Server DM commands: dumpbelow, dump.	374	* Used by: Crossedit: dump. Server DM commands: dumpbelow, dump.
288	* Some error messages.	375	* Some error messages.
289	* The result of the dump is stored in the static global errmsg array.	376	* The result of the dump is stored in the static global errmsg array.
290	*/	377	*/
291		378
292	void dump_object2(object *op) {	379	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) {	380	dump_object (object *op)
339	if(op==NULL) {	381	{
340	strcpy(errmsg,"[NULL pointer]");	382	if (!op)
341	return;	383	return strdup ("[NULLOBJ]");
342	}
343	errmsg[0]='\0';
344	dump_object2(op);
345	}
346		384
347	void dump_all_objects(void) {	385	object_freezer freezer;
348	object *op;	386	save_object (freezer, op, 3);
349	for(op=objects;op!=NULL;op=op->next) {	387	return freezer.as_string ();
350	dump_object(op);
351	fprintf(logfile, "Object %d\n:%s\n", op->count, errmsg);
352	}
353	}	388	}
354		389
355	/*	390	/*
356	* get_nearest_part(multi-object, object 2) returns the part of the	391	* get_nearest_part(multi-object, object 2) returns the part of the
357	* multi-object 1 which is closest to the second object.	392	* multi-object 1 which is closest to the second object.
358	* If it's not a multi-object, it is returned.	393	* If it's not a multi-object, it is returned.
359	*/	394	*/
360		395
		396	object *
361	object *get_nearest_part(object *op, const object *pl) {	397	get_nearest_part (object *op, const object *pl)
		398	{
362	object *tmp,*closest;	399	object *tmp, *closest;
363	int last_dist,i;	400	int last_dist, i;
		401
364	if(op->more==NULL)	402	if (op->more == NULL)
365	return op;	403	return op;
366	for(last_dist=distance(op,pl),closest=op,tmp=op->more;tmp!=NULL;tmp=tmp->more)	404	for (last_dist = distance (op, pl), closest = op, tmp = op->more; tmp != NULL; tmp = tmp->more)
367	if((i=distance(tmp,pl))<last_dist)	405	if ((i = distance (tmp, pl)) < last_dist)
368	closest=tmp,last_dist=i;	406	closest = tmp, last_dist = i;
369	return closest;	407	return closest;
370	}	408	}
371		409
372	/*	410	/*
373	* Returns the object which has the count-variable equal to the argument.	411	* Returns the object which has the count-variable equal to the argument.
374	*/	412	*/
375		413
		414	object *
376	object *find_object(tag_t i) {	415	find_object (tag_t i)
377	object *op;	416	{
378	for(op=objects;op!=NULL;op=op->next)	417	for (object *op = object::first; op; op = op->next)
379	if(op->count==i)	418	if (op->count == i)
380	break;	419	return op;
		420
381	return op;	421	return 0;
382	}	422	}
383		423
384	/*	424	/*
385	* Returns the first object which has a name equal to the argument.	425	* Returns the first object which has a name equal to the argument.
386	* Used only by the patch command, but not all that useful.	426	* Used only by the patch command, but not all that useful.
387	* Enables features like "patch <name-of-other-player> food 999"	427	* Enables features like "patch <name-of-other-player> food 999"
388	*/	428	*/
389		429
		430	object *
390	object *find_object_name(const char *str) {	431	find_object_name (const char *str)
391	const char *name = shstr::find (str);	432	{
		433	shstr_cmp str_ (str);
392	object *op;	434	object *op;
		435
393	for(op=objects;op!=NULL;op=op->next)	436	for (op = object::first; op != NULL; op = op->next)
394	if(&op->name == name)	437	if (op->name == str_)
395	break;	438	break;
396		439
397	return op;	440	return op;
398	}	441	}
399		442
		443	void
400	void free_all_object_data ()	444	free_all_object_data ()
401	{	445	{
402	LOG (llevDebug, "%d allocated objects\n", nrofallocobjects);	446	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	}	447	}
439		448
440	/*	449	/*
441	* Sets the owner and sets the skill and exp pointers to owner's current	450	* Sets the owner and sets the skill and exp pointers to owner's current
442	* skill and experience objects.	451	* skill and experience objects.
443	*/	452	*/
444	void set_owner (object *op, object *owner)	453	void
		454	object::set_owner (object *owner)
445	{	455	{
446	if(owner==NULL||op==NULL)	456	if (!owner)
447	return;	457	return;
448		458
449	/* next line added to allow objects which own objects */	459	/* next line added to allow objects which own objects */
450	/* Add a check for ownercounts in here, as I got into an endless loop	460	/* 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	461	* with the fireball owning a poison cloud which then owned the
452	* fireball. I believe that was caused by one of the objects getting	462	* fireball. I believe that was caused by one of the objects getting
453	* freed and then another object replacing it. Since the ownercounts	463	* 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.	464	* didn't match, this check is valid and I believe that cause is valid.
455	*/	465	*/
456	while (owner->owner && owner!=owner->owner &&	466	while (owner->owner)
457	owner->ownercount==owner->owner->count) owner=owner->owner;	467	owner = owner->owner;
458		468
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;	469	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	}	470	}
494		471
495	/* Zero the key_values on op, decrementing the shared-string	472	/* Zero the key_values on op, decrementing the shared-string
496	* refcounts and freeing the links.	473	* refcounts and freeing the links.
497	*/	474	*/
		475	static void
498	static void free_key_values(object * op)	476	free_key_values (object *op)
499	{	477	{
500	for (key_value *i = op->key_values; i != 0; )	478	for (key_value *i = op->key_values; i != 0;)
501	{	479	{
502	key_value *next = i->next;	480	key_value *next = i->next;
503	delete i;	481	delete i;
		482
504	i = next;	483	i = next;
505	}	484	}
506		485
507	op->key_values = 0;	486	op->key_values = 0;
508	}	487	}
509		488
510	void object::clear ()	489	void object::clear ()
511	{	490	{
512	attachable_base::clear ();	491	attachable_base::clear ();
513		492
514	free_key_values (this);	493	free_key_values (this);
515		494
516	name = 0;	495	owner = 0;
		496	name = 0;
517	name_pl = 0;	497	name_pl = 0;
518	title = 0;	498	title = 0;
519	race = 0;	499	race = 0;
520	slaying = 0;	500	slaying = 0;
521	skill = 0;	501	skill = 0;
522	msg = 0;	502	msg = 0;
523	lore = 0;	503	lore = 0;
524	custom_name = 0;	504	custom_name = 0;
525	materialname = 0;	505	materialname = 0;
		506	contr = 0;
		507	below = 0;
		508	above = 0;
		509	inv = 0;
		510	container = 0;
		511	env = 0;
		512	more = 0;
		513	head = 0;
		514	map = 0;
		515	active_next = 0;
		516	active_prev = 0;
526		517
527	memset (static_cast<object_pod *>(this), 0, sizeof (object_pod));	518	memset (static_cast<object_pod *>(this), 0, sizeof (object_pod));
528		519
529	SET_FLAG (this, FLAG_REMOVED);	520	SET_FLAG (this, FLAG_REMOVED);
		521
		522	/* What is not cleared is next, prev, and count */
		523
		524	expmul = 1.0;
		525	face = blank_face;
		526
		527	if (settings.casting_time)
		528	casting_time = -1;
530	}	529	}
531		530
532	void object::clone (object *destination)	531	void object::clone (object *destination)
533	{	532	{
534	*(object_copy *)destination = *(object_copy *)this;	533	*(object_copy *)destination = *this;
535	*(object_pod *)destination = *(object_pod *)this;	534	*(object_pod *)destination = *this;
536		535
537	if (self || cb)	536	if (self || cb)
538	INVOKE_OBJECT (CLONE, this, ARG_OBJECT (destination));	537	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 */
563
564	op->expmul = 1.0;
565	op->face = blank_face;
566	op->attacked_by_count = -1;
567
568	if (settings.casting_time)
569	op->casting_time = -1;
570	}	538	}
571		539
572	/*	540	/*
573	* copy object first frees everything allocated by the second object,	541	* copy object first frees everything allocated by the second object,
574	* and then copies the contends of the first object into the second	542	* and then copies the contends of the first object into the second
575	* object, allocating what needs to be allocated. Basically, any	543	* object, allocating what needs to be allocated. Basically, any
576	* data that is malloc'd needs to be re-malloc/copied. Otherwise,	544	* 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	545	* if the first object is freed, the pointers in the new object
578	* will point at garbage.	546	* will point at garbage.
579	*/	547	*/
580		548	void
581	void copy_object (object *op2, object *op)	549	copy_object (object *op2, object *op)
582	{	550	{
583	bool is_freed = QUERY_FLAG (op, FLAG_FREED);	551	bool is_freed = QUERY_FLAG (op, FLAG_FREED);
584	bool is_removed = QUERY_FLAG (op, FLAG_REMOVED);	552	bool is_removed = QUERY_FLAG (op, FLAG_REMOVED);
585		553
586	op2->clone (op);	554	op2->clone (op);
587		555
		556	if (is_freed)
588	if (is_freed) SET_FLAG (op, FLAG_FREED);	557	SET_FLAG (op, FLAG_FREED);
		558	if (is_removed)
589	if (is_removed) SET_FLAG (op, FLAG_REMOVED);	559	SET_FLAG (op, FLAG_REMOVED);
590		560
591	if (op2->speed < 0)	561	if (op2->speed < 0)
592	op->speed_left = op2->speed_left - RANDOM() % 200 / 100.0;	562	op->speed_left = op2->speed_left - RANDOM () % 200 / 100.0;
593		563
594	/* Copy over key_values, if any. */	564	/* Copy over key_values, if any. */
595	if (op2->key_values != NULL)	565	if (op2->key_values)
596	{	566	{
597	key_value *tail = NULL;	567	key_value *tail = 0;
598	key_value *i;	568	key_value *i;
599		569
600	op->key_values = NULL;	570	op->key_values = 0;
601		571
602	for (i = op2->key_values; i != NULL; i = i->next)	572	for (i = op2->key_values; i; i = i->next)
603	{	573	{
604	key_value *new_link = new key_value;	574	key_value *new_link = new key_value;
605		575
606	new_link->next = NULL;	576	new_link->next = 0;
607	new_link->key = i->key;	577	new_link->key = i->key;
608	new_link->value = i->value;	578	new_link->value = i->value;
609		579
610	/* Try and be clever here, too. */	580	/* Try and be clever here, too. */
611	if (op->key_values == NULL)	581	if (!op->key_values)
612	{	582	{
613	op->key_values = new_link;	583	op->key_values = new_link;
614	tail = new_link;	584	tail = new_link;
615	}	585	}
616	else	586	else
…		…
628	* If an object with the IS_TURNABLE() flag needs to be turned due	598	* 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	599	* 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.	600	* be called to update the face variable, _and_ how it looks on the map.
631	*/	601	*/
632		602
		603	void
633	void update_turn_face(object *op) {	604	update_turn_face (object *op)
		605	{
634	if(!QUERY_FLAG(op,FLAG_IS_TURNABLE)||op->arch==NULL)	606	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || op->arch == NULL)
635	return;	607	return;
636	SET_ANIMATION(op, op->direction);	608	SET_ANIMATION (op, op->direction);
637	update_object(op,UP_OBJ_FACE);	609	update_object (op, UP_OBJ_FACE);
638	}	610	}
639		611
640	/*	612	/*
641	* Updates the speed of an object. If the speed changes from 0 to another	613	* 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.	614	* 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.	615	* This function needs to be called whenever the speed of an object changes.
644	*/	616	*/
645		617	void
646	void update_ob_speed(object *op) {	618	update_ob_speed (object *op)
		619	{
647	extern int arch_init;	620	extern int arch_init;
648		621
649	/* No reason putting the archetypes objects on the speed list,	622	/* No reason putting the archetypes objects on the speed list,
650	* since they never really need to be updated.	623	* since they never really need to be updated.
651	*/	624	*/
652		625
653	if (QUERY_FLAG(op, FLAG_FREED) && op->speed) {	626	if (QUERY_FLAG (op, FLAG_FREED) && op->speed)
		627	{
654	LOG(llevError,"Object %s is freed but has speed.\n", &op->name);	628	LOG (llevError, "Object %s is freed but has speed.\n", &op->name);
655	#ifdef MANY_CORES	629	#ifdef MANY_CORES
656	abort();	630	abort ();
657	#else	631	#else
658	op->speed = 0;	632	op->speed = 0;
659	#endif	633	#endif
660	}	634	}
		635
661	if (arch_init) {	636	if (arch_init)
		637	return;
		638
		639	if (FABS (op->speed) > MIN_ACTIVE_SPEED)
		640	{
		641	/* If already on active list, don't do anything */
		642	if (op->active_next || op->active_prev || op == active_objects)
662	return;	643	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		644
669	/* process_events() expects us to insert the object at the beginning	645	/* process_events() expects us to insert the object at the beginning
670	* of the list. */	646	* of the list. */
671	op->active_next = active_objects;	647	op->active_next = active_objects;
		648
672	if (op->active_next!=NULL)	649	if (op->active_next != NULL)
673	op->active_next->active_prev = op;	650	op->active_next->active_prev = op;
		651
674	active_objects = op;	652	active_objects = op;
		653	}
		654	else
675	}	655	{
676	else {
677	/* If not on the active list, nothing needs to be done */	656	/* If not on the active list, nothing needs to be done */
678	if (!op->active_next && !op->active_prev && op!=active_objects)	657	if (!op->active_next && !op->active_prev && op != active_objects)
679	return;	658	return;
680		659
681	if (op->active_prev==NULL) {	660	if (op->active_prev == NULL)
		661	{
682	active_objects = op->active_next;	662	active_objects = op->active_next;
		663
683	if (op->active_next!=NULL)	664	if (op->active_next != NULL)
684	op->active_next->active_prev = NULL;	665	op->active_next->active_prev = NULL;
		666	}
		667	else
685	}	668	{
686	else {
687	op->active_prev->active_next = op->active_next;	669	op->active_prev->active_next = op->active_next;
		670
688	if (op->active_next)	671	if (op->active_next)
689	op->active_next->active_prev = op->active_prev;	672	op->active_next->active_prev = op->active_prev;
690	}	673	}
		674
691	op->active_next = NULL;	675	op->active_next = NULL;
692	op->active_prev = NULL;	676	op->active_prev = NULL;
693	}	677	}
694	}	678	}
695		679
696	/* This function removes object 'op' from the list of active	680	/* This function removes object 'op' from the list of active
697	* objects.	681	* objects.
…		…
699	* reference maps where you don't want an object that isn't	683	* reference maps where you don't want an object that isn't
700	* in play chewing up cpu time getting processed.	684	* in play chewing up cpu time getting processed.
701	* The reverse of this is to call update_ob_speed, which	685	* The reverse of this is to call update_ob_speed, which
702	* will do the right thing based on the speed of the object.	686	* will do the right thing based on the speed of the object.
703	*/	687	*/
		688	void
704	void remove_from_active_list(object *op)	689	remove_from_active_list (object *op)
705	{	690	{
706	/* If not on the active list, nothing needs to be done */	691	/* If not on the active list, nothing needs to be done */
707	if (!op->active_next && !op->active_prev && op!=active_objects)	692	if (!op->active_next && !op->active_prev && op != active_objects)
708	return;	693	return;
709		694
710	if (op->active_prev==NULL) {	695	if (op->active_prev == NULL)
		696	{
711	active_objects = op->active_next;	697	active_objects = op->active_next;
712	if (op->active_next!=NULL)	698	if (op->active_next != NULL)
713	op->active_next->active_prev = NULL;	699	op->active_next->active_prev = NULL;
		700	}
		701	else
714	}	702	{
715	else {
716	op->active_prev->active_next = op->active_next;	703	op->active_prev->active_next = op->active_next;
717	if (op->active_next)	704	if (op->active_next)
718	op->active_next->active_prev = op->active_prev;	705	op->active_next->active_prev = op->active_prev;
719	}	706	}
720	op->active_next = NULL;	707	op->active_next = NULL;
721	op->active_prev = NULL;	708	op->active_prev = NULL;
722	}	709	}
723		710
724	/*	711	/*
725	* update_object() updates the array which represents the map.	712	* update_object() updates the array which represents the map.
726	* It takes into account invisible objects (and represent squares covered	713	* It takes into account invisible objects (and represent squares covered
…		…
741	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update	728	* 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.	729	* as that is easier than trying to look at what may have changed.
743	* UP_OBJ_FACE: only the objects face has changed.	730	* UP_OBJ_FACE: only the objects face has changed.
744	*/	731	*/
745		732
		733	void
746	void update_object(object *op, int action) {	734	update_object (object *op, int action)
		735	{
747	int update_now=0, flags;	736	int update_now = 0, flags;
748	MoveType move_on, move_off, move_block, move_slow;	737	MoveType move_on, move_off, move_block, move_slow;
749		738
750	if (op == NULL) {	739	if (op == NULL)
		740	{
751	/* this should never happen */	741	/* this should never happen */
752	LOG(llevDebug,"update_object() called for NULL object.\n");	742	LOG (llevDebug, "update_object() called for NULL object.\n");
753	return;	743	return;
754	}
755		744	}
		745
756	if(op->env!=NULL) {	746	if (op->env != NULL)
		747	{
757	/* Animation is currently handled by client, so nothing	748	/* Animation is currently handled by client, so nothing
758	* to do in this case.	749	* to do in this case.
759	*/	750	*/
760	return;	751	return;
761	}	752	}
762		753
763	/* If the map is saving, don't do anything as everything is	754	/* If the map is saving, don't do anything as everything is
764	* going to get freed anyways.	755	* going to get freed anyways.
765	*/	756	*/
766	if (!op->map || op->map->in_memory == MAP_SAVING) return;	757	if (!op->map || op->map->in_memory == MAP_SAVING)
767		758	return;
		759
768	/* make sure the object is within map boundaries */	760	/* make sure the object is within map boundaries */
769	if (op->x < 0 || op->x >= MAP_WIDTH(op->map) ||	761	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)) {	762	{
771	LOG(llevError,"update_object() called for object out of map!\n");	763	LOG (llevError, "update_object() called for object out of map!\n");
772	#ifdef MANY_CORES	764	#ifdef MANY_CORES
773	abort();	765	abort ();
774	#endif	766	#endif
775	return;	767	return;
776	}
777		768	}
		769
778	flags = GET_MAP_FLAGS(op->map, op->x, op->y);	770	flags = GET_MAP_FLAGS (op->map, op->x, op->y);
779	SET_MAP_FLAGS(op->map, op->x, op->y, flags | P_NEED_UPDATE);	771	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);	772	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);	773	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);	774	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);	775	move_off = GET_MAP_MOVE_OFF (op->map, op->x, op->y);
784		776
785	if (action == UP_OBJ_INSERT) {	777	if (action == UP_OBJ_INSERT)
		778	{
786	if (QUERY_FLAG(op, FLAG_BLOCKSVIEW) && !(flags & P_BLOCKSVIEW))	779	if (QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(flags & P_BLOCKSVIEW))
787	update_now=1;	780	update_now = 1;
788		781
789	if (QUERY_FLAG(op, FLAG_NO_MAGIC) && !(flags & P_NO_MAGIC))	782	if (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(flags & P_NO_MAGIC))
790	update_now=1;	783	update_now = 1;
791		784
792	if (QUERY_FLAG(op, FLAG_DAMNED) && !(flags & P_NO_CLERIC))	785	if (QUERY_FLAG (op, FLAG_DAMNED) && !(flags & P_NO_CLERIC))
793	update_now=1;	786	update_now = 1;
794		787
795	if (QUERY_FLAG(op, FLAG_ALIVE) && !(flags & P_IS_ALIVE))	788	if (QUERY_FLAG (op, FLAG_ALIVE) && !(flags & P_IS_ALIVE))
796	update_now=1;	789	update_now = 1;
797		790
798	if (op->type == SAFE_GROUND && !(flags & P_SAFE))	791	if (op->type == SAFE_GROUND && !(flags & P_SAFE))
799	update_now=1;	792	update_now = 1;
800		793
801	if ((move_on | op->move_on) != move_on) update_now=1;	794	if ((move_on | op->move_on) != move_on)
		795	update_now = 1;
802		796
803	if ((move_off | op->move_off) != move_off) update_now=1;	797	if ((move_off | op->move_off) != move_off)
		798	update_now = 1;
804		799
805	/* This isn't perfect, but I don't expect a lot of objects to	800	/* This isn't perfect, but I don't expect a lot of objects to
806	* to have move_allow right now.	801	* to have move_allow right now.
807	*/	802	*/
808	if (((move_block | op->move_block) & ~op->move_allow) != move_block)	803	if (((move_block | op->move_block) & ~op->move_allow) != move_block)
809	update_now=1;	804	update_now = 1;
810		805
811	if ((move_slow | op->move_slow) != move_slow)	806	if ((move_slow | op->move_slow) != move_slow)
812	update_now=1;	807	update_now = 1;
813	}	808	}
814	/* if the object is being removed, we can't make intelligent	809	/* if the object is being removed, we can't make intelligent
815	* decisions, because remove_ob can't really pass the object	810	* decisions, because remove_ob can't really pass the object
816	* that is being removed.	811	* that is being removed.
817	*/	812	*/
818	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE) {	813	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)
819	update_now=1;	814	update_now = 1;
820	} else if (action == UP_OBJ_FACE) {	815	else if (action == UP_OBJ_FACE)
821	/* Nothing to do for that case */	816	/* Nothing to do for that case */ ;
822	}
823	else {	817	else
824	LOG(llevError,"update_object called with invalid action: %d\n", action);	818	LOG (llevError, "update_object called with invalid action: %d\n", action);
825	}
826		819
827	if (update_now) {	820	if (update_now)
		821	{
828	SET_MAP_FLAGS(op->map, op->x, op->y, flags | P_NO_ERROR | P_NEED_UPDATE);	822	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);	823	update_position (op->map, op->x, op->y);
830	}	824	}
831		825
832	if(op->more!=NULL)	826	if (op->more != NULL)
833	update_object(op->more, action);	827	update_object (op->more, action);
834	}	828	}
835		829
836	static std::vector<object *> mortals;	830	object::vector object::mortals;
		831	object::vector object::objects; // not yet used
		832	object *object::first;
837		833
838	void object::free_mortals ()	834	void object::free_mortals ()
839	{	835	{
840	for (std::vector<object *>::iterator i = mortals.begin (); i != mortals.end (); ++i)	836	for (AUTODECL (i, mortals.begin ()); i != mortals.end ();)
		837	if ((*i)->refcnt)
		838	++i; // further delay freeing
		839	else
		840	{
841	delete *i;	841	delete *i;
		842	mortals.erase (i);
		843	}
842		844
843	mortals.clear ();	845	static int lastmortals = 0;//D
		846
		847	if (mortals.size() != lastmortals && lastmortals > 100)//D
		848	{
		849	lastmortals = mortals.size ();//D
		850	LOG (llevDebug, "%d objects in mortal queue\n", lastmortals);//D
		851	}
844	}	852	}
845		853
846	object::object ()	854	object::object ()
847	{	855	{
848	SET_FLAG (this, FLAG_REMOVED);	856	SET_FLAG (this, FLAG_REMOVED);
849		857
850	expmul = 1.0;	858	expmul = 1.0;
851	face = blank_face;	859	face = blank_face;
852	attacked_by_count = -1;
853	}	860	}
854		861
855	object::~object ()	862	object::~object ()
856	{	863	{
857	free_key_values (this);	864	free_key_values (this);
858	}	865	}
859		866
860	void
861	object::link ()	867	void object::link ()
862	{	868	{
863	count = ++ob_count;	869	count = ++ob_count;
		870	uuid = gen_uuid ();
864		871
865	prev = 0;	872	prev = 0;
866	next = objects;	873	next = object::first;
867		874
868	if (objects)	875	if (object::first)
869	objects->prev = this;	876	object::first->prev = this;
870		877
871	objects = this;	878	object::first = this;
872	}	879	}
873		880
874	void
875	object::unlink ()	881	void object::unlink ()
876	{	882	{
877	count = 0;	883	if (this == object::first)
		884	object::first = next;
878		885
879	/* Remove this object from the list of used objects */	886	/* Remove this object from the list of used objects */
880	if (prev) prev->next = next;	887	if (prev) prev->next = next;
881	if (next) next->prev = prev;	888	if (next) next->prev = prev;
882	if (this == objects) objects = next;	889
883	}	890	prev = 0;
		891	next = 0;
		892	}
884		893
885	object *object::create ()	894	object *object::create ()
886	{	895	{
887	object *op = new object;	896	object *op = new object;
888	op->link ();	897	op->link ();
…		…
894	* it from the list of used objects, and puts it on the list of	903	* 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.	904	* free objects. The IS_FREED() flag is set in the object.
896	* The object must have been removed by remove_ob() first for	905	* The object must have been removed by remove_ob() first for
897	* this function to succeed.	906	* this function to succeed.
898	*	907	*
899	* If free_inventory is set, free inventory as well. Else drop items in	908	* If destroy_inventory is set, free inventory as well. Else drop items in
900	* inventory to the ground.	909	* inventory to the ground.
901	*/	910	*/
902	void	911	void object::destroy (bool destroy_inventory)
903	object::free (bool free_inventory)
904	{	912	{
		913	if (QUERY_FLAG (this, FLAG_FREED))
		914	return;
		915
		916	if (QUERY_FLAG (this, FLAG_FRIENDLY))
		917	remove_friendly_object (this);
		918
905	if (!QUERY_FLAG (this, FLAG_REMOVED))	919	if (!QUERY_FLAG (this, FLAG_REMOVED))
906	{	920	remove_ob (this);
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		921
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))	922	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		923
927	if (more)	924	if (more)
928	{	925	{
929	more->free (free_inventory);	926	more->destroy (destroy_inventory);
930	more = 0;	927	more = 0;
931	}	928	}
932		929
933	if (inv)	930	if (inv)
934	{	931	{
935	/* Only if the space blocks everything do we not process -	932	/* Only if the space blocks everything do we not process -
936	* if some form of movement is allowed, let objects	933	* if some form of movement is allowed, let objects
937	* drop on that space.	934	* drop on that space.
938	*/	935	*/
939	if (free_inventory || !map	936	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	937	{
941	|| (GET_MAP_MOVE_BLOCK (map, x, y) == MOVE_ALL))
942	{
943	object *op = inv;	938	object *op = inv;
944		939
945	while (op)	940	while (op)
946	{	941	{
947	object *tmp = op->below;	942	object *tmp = op->below;
948	remove_ob (op);
949	op->free (free_inventory);	943	op->destroy (destroy_inventory);
950	op = tmp;	944	op = tmp;
951	}	945	}
952	}	946	}
953	else	947	else
954	{ /* Put objects in inventory onto this space */	948	{ /* Put objects in inventory onto this space */
955	object *op = inv;	949	object *op = inv;
956		950
957	while (op)	951	while (op)
958	{	952	{
959	object *tmp = op->below;	953	object *tmp = op->below;
		954
960	remove_ob (op);	955	remove_ob (op);
961		956
962	if (QUERY_FLAG (op, FLAG_STARTEQUIP)	957	if (QUERY_FLAG (op, FLAG_STARTEQUIP)
963	|| QUERY_FLAG (op, FLAG_NO_DROP) || op->type == RUNE	958	|| 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))	959	free_object (op);
965	free_object (op);	960	else
966	else	961	{
967	{	962	op->x = x;
968	op->x = x;	963	op->y = y;
969	op->y = y;
970	insert_ob_in_map (op, map, 0, 0); /* Insert in same map as the envir */	964	insert_ob_in_map (op, map, 0, 0); /* Insert in same map as the envir */
971	}	965	}
972		966
973	op = tmp;	967	op = tmp;
		968	}
		969	}
974	}	970	}
975	}	971
		972	// hack to ensure that freed objects still have a valid map
		973	{
		974	static maptile *freed_map; // freed objects are moved here to avoid crashes
		975
		976	if (!freed_map)
		977	{
		978	freed_map = new maptile;
		979
		980	freed_map->name = "/internal/freed_objects_map";
		981	freed_map->width = 3;
		982	freed_map->height = 3;
		983
		984	freed_map->allocate ();
976	}	985	}
		986
		987	map = freed_map;
		988	x = 1;
		989	y = 1;
		990	}
		991
		992	// clear those pointers that likely might have circular references to us
		993	owner = 0;
		994	enemy = 0;
		995	attacked_by = 0;
		996
		997	// only relevant for players(?), but make sure of it anyways
		998	contr = 0;
977		999
978	/* Remove object from the active list */	1000	/* Remove object from the active list */
979	speed = 0;	1001	speed = 0;
980	update_ob_speed (this);	1002	update_ob_speed (this);
981		1003
982	unlink ();	1004	unlink ();
983		1005
984	SET_FLAG (this, FLAG_FREED);
985
986	mortals.push_back (this);	1006	mortals.push_back (this);
987	}	1007	}
988		1008
989	/*	1009	/*
990	* sub_weight() recursively (outwards) subtracts a number from the	1010	* sub_weight() recursively (outwards) subtracts a number from the
991	* weight of an object (and what is carried by it's environment(s)).	1011	* weight of an object (and what is carried by it's environment(s)).
992	*/	1012	*/
993		1013
		1014	void
994	void sub_weight (object *op, signed long weight) {	1015	sub_weight (object *op, signed long weight)
		1016	{
995	while (op != NULL) {	1017	while (op != NULL)
		1018	{
996	if (op->type == CONTAINER) {	1019	if (op->type == CONTAINER)
997	weight=(signed long)(weight*(100-op->stats.Str)/100);	1020	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
998	}	1021
999	op->carrying-=weight;	1022	op->carrying -= weight;
1000	op = op->env;	1023	op = op->env;
1001	}	1024	}
1002	}	1025	}
1003		1026
1004	/* remove_ob(op):	1027	/* remove_ob(op):
1005	* This function removes the object op from the linked list of objects	1028	* 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	1029	* which it is currently tied to. When this function is done, the
…		…
1008	* environment, the x and y coordinates will be updated to	1031	* environment, the x and y coordinates will be updated to
1009	* the previous environment.	1032	* the previous environment.
1010	* Beware: This function is called from the editor as well!	1033	* Beware: This function is called from the editor as well!
1011	*/	1034	*/
1012		1035
		1036	void
1013	void remove_ob(object *op) {	1037	remove_ob (object *op)
		1038	{
1014	object *tmp,*last=NULL;	1039	object *tmp, *last = 0;
1015	object *otmp;	1040	object *otmp;
1016	tag_t tag;	1041
1017	int check_walk_off;	1042	int check_walk_off;
1018	mapstruct *m;	1043	maptile *m;
		1044
1019	sint16 x,y;	1045	sint16 x, y;
1020
1021		1046
1022	if(QUERY_FLAG(op,FLAG_REMOVED)) {	1047	if (QUERY_FLAG (op, FLAG_REMOVED))
1023	dump_object(op);	1048	return;
1024	LOG(llevError,"Trying to remove removed object.\n%s\n",errmsg);
1025		1049
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);	1050	SET_FLAG (op, FLAG_REMOVED);
1042		1051
		1052	if (op->more != NULL)
		1053	remove_ob (op->more);
		1054
1043	/*	1055	/*
1044	* In this case, the object to be removed is in someones	1056	* In this case, the object to be removed is in someones
1045	* inventory.	1057	* inventory.
1046	*/	1058	*/
1047	if(op->env!=NULL) {	1059	if (op->env != NULL)
		1060	{
1048	if(op->nrof)	1061	if (op->nrof)
1049	sub_weight(op->env, op->weight*op->nrof);	1062	sub_weight (op->env, op->weight * op->nrof);
1050	else	1063	else
1051	sub_weight(op->env, op->weight+op->carrying);	1064	sub_weight (op->env, op->weight + op->carrying);
1052		1065
1053	/* NO_FIX_PLAYER is set when a great many changes are being	1066	/* NO_FIX_PLAYER is set when a great many changes are being
1054	* made to players inventory. If set, avoiding the call	1067	* made to players inventory. If set, avoiding the call
1055	* to save cpu time.	1068	* to save cpu time.
1056	*/	1069	*/
1057	if ((otmp=is_player_inv(op->env))!=NULL && otmp->contr &&	1070	if ((otmp = is_player_inv (op->env)) != NULL && otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1058	!QUERY_FLAG(otmp,FLAG_NO_FIX_PLAYER))
1059	fix_player(otmp);	1071	fix_player (otmp);
1060		1072
1061	if(op->above!=NULL)	1073	if (op->above != NULL)
1062	op->above->below=op->below;	1074	op->above->below = op->below;
1063	else	1075	else
1064	op->env->inv=op->below;	1076	op->env->inv = op->below;
1065		1077
1066	if(op->below!=NULL)	1078	if (op->below != NULL)
1067	op->below->above=op->above;	1079	op->below->above = op->above;
1068		1080
1069	/* we set up values so that it could be inserted into	1081	/* we set up values so that it could be inserted into
1070	* the map, but we don't actually do that - it is up	1082	* the map, but we don't actually do that - it is up
1071	* to the caller to decide what we want to do.	1083	* to the caller to decide what we want to do.
1072	*/	1084	*/
1073	op->x=op->env->x,op->y=op->env->y;	1085	op->x = op->env->x, op->y = op->env->y;
1074	op->map=op->env->map;	1086	op->map = op->env->map;
1075	op->above=NULL,op->below=NULL;	1087	op->above = NULL, op->below = NULL;
1076	op->env=NULL;	1088	op->env = NULL;
		1089	}
		1090	else if (op->map)
		1091	{
		1092	x = op->x;
		1093	y = op->y;
		1094	m = get_map_from_coord (op->map, &x, &y);
		1095
		1096	if (!m)
		1097	{
		1098	LOG (llevError, "remove_ob called when object was on map but appears to not be within valid coordinates? %s (%d,%d)\n",
		1099	op->map->path, op->x, op->y);
		1100	/* in old days, we used to set x and y to 0 and continue.
		1101	* it seems if we get into this case, something is probablye
		1102	* screwed up and should be fixed.
		1103	*/
		1104	abort ();
		1105	}
		1106
		1107	if (op->map != m)
		1108	LOG (llevDebug, "remove_ob: Object not really on map it claimed to be on? %s != %s, %d,%d != %d,%d\n",
		1109	op->map->path, m->path, op->x, op->y, x, y);
		1110
		1111	/* Re did the following section of code - it looks like it had
		1112	* lots of logic for things we no longer care about
		1113	*/
		1114
		1115	/* link the object above us */
		1116	if (op->above)
		1117	op->above->below = op->below;
		1118	else
		1119	SET_MAP_TOP (m, x, y, op->below); /* we were top, set new top */
		1120
		1121	/* Relink the object below us, if there is one */
		1122	if (op->below)
		1123	op->below->above = op->above;
		1124	else
		1125	{
		1126	/* Nothing below, which means we need to relink map object for this space
		1127	* use translated coordinates in case some oddness with map tiling is
		1128	* evident
		1129	*/
		1130	if (GET_MAP_OB (m, x, y) != op)
		1131	{
		1132	char *dump = dump_object (op);
		1133	LOG (llevError,
		1134	"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);
		1135	free (dump);
		1136	dump = dump_object (GET_MAP_OB (m, x, y));
		1137	LOG (llevError, "%s\n", dump);
		1138	free (dump);
		1139	}
		1140
		1141	SET_MAP_OB (m, x, y, op->above); /* goes on above it. */
		1142	}
		1143
		1144	op->above = 0;
		1145	op->below = 0;
		1146
		1147	if (op->map->in_memory == MAP_SAVING)
1077	return;	1148	return;
1078	}
1079		1149
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);	1150	check_walk_off = !QUERY_FLAG (op, FLAG_NO_APPLY);
		1151
1135	for(tmp=GET_MAP_OB(m,x,y);tmp!=NULL;tmp=tmp->above) {	1152	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)
		1153	{
1136	/* No point updating the players look faces if he is the object	1154	/* No point updating the players look faces if he is the object
1137	* being removed.	1155	* being removed.
1138	*/	1156	*/
1139		1157
1140	if(tmp->type==PLAYER && tmp!=op) {	1158	if (tmp->type == PLAYER && tmp != op)
		1159	{
1141	/* If a container that the player is currently using somehow gets	1160	/* If a container that the player is currently using somehow gets
1142	* removed (most likely destroyed), update the player view	1161	* removed (most likely destroyed), update the player view
1143	* appropriately.	1162	* appropriately.
1144	*/	1163	*/
1145	if (tmp->container==op) {	1164	if (tmp->container == op)
		1165	{
1146	CLEAR_FLAG(op, FLAG_APPLIED);	1166	CLEAR_FLAG (op, FLAG_APPLIED);
1147	tmp->container=NULL;	1167	tmp->container = NULL;
		1168	}
		1169
		1170	tmp->contr->socket.update_look = 1;
1148	}	1171	}
1149	tmp->contr->socket.update_look=1;	1172
1150	}
1151	/* See if player moving off should effect something */	1173	/* See if player moving off should effect something */
		1174	if (check_walk_off
1152	if (check_walk_off && ((op->move_type & tmp->move_off) &&	1175	&& ((op->move_type & tmp->move_off)
1153	(op->move_type & ~tmp->move_off & ~tmp->move_block)==0)) {	1176	&& (op->move_type & ~tmp->move_off & ~tmp->move_block) == 0))
1154		1177	{
1155	move_apply(tmp, op, NULL);	1178	move_apply (tmp, op, NULL);
		1179
1156	if (was_destroyed (op, tag)) {	1180	if (op->destroyed ())
1157	LOG (llevError, "BUG: remove_ob(): name %s, archname %s destroyed "	1181	LOG (llevError, "BUG: remove_ob(): name %s, destroyed leaving object\n", tmp->debug_desc ());
1158	"leaving object\n", &tmp->name, &tmp->arch->name);
1159	}	1182	}
1160	}
1161		1183
1162	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */	1184	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */
1163		1185
1164	if(tmp->above == tmp)	1186	if (tmp->above == tmp)
1165	tmp->above = NULL;	1187	tmp->above = NULL;
		1188
1166	last=tmp;	1189	last = tmp;
1167	}	1190	}
		1191
1168	/* last == NULL of there are no objects on this space */	1192	/* last == NULL of there are no objects on this space */
1169	if (last==NULL) {	1193	if (last == NULL)
		1194	{
1170	/* set P_NEED_UPDATE, otherwise update_position will complain. In theory,	1195	/* set P_NEED_UPDATE, otherwise update_position will complain. In theory,
1171	* we could preserve the flags (GET_MAP_FLAGS), but update_position figures	1196	* 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	1197	* those out anyways, and if there are any flags set right now, they won't
1173	* be correct anyways.	1198	* be correct anyways.
1174	*/	1199	*/
1175	SET_MAP_FLAGS(op->map, op->x, op->y, P_NEED_UPDATE);	1200	SET_MAP_FLAGS (op->map, op->x, op->y, P_NEED_UPDATE);
1176	update_position(op->map, op->x, op->y);	1201	update_position (op->map, op->x, op->y);
1177	}	1202	}
1178	else	1203	else
1179	update_object(last, UP_OBJ_REMOVE);	1204	update_object (last, UP_OBJ_REMOVE);
1180		1205
1181	if(QUERY_FLAG(op,FLAG_BLOCKSVIEW)|| (op->glow_radius != 0))	1206	if (QUERY_FLAG (op, FLAG_BLOCKSVIEW) || (op->glow_radius != 0))
1182	update_all_los(op->map, op->x, op->y);	1207	update_all_los (op->map, op->x, op->y);
1183		1208	}
1184	}	1209	}
1185		1210
1186	/*	1211	/*
1187	* merge_ob(op,top):	1212	* merge_ob(op,top):
1188	*	1213	*
1189	* This function goes through all objects below and including top, and	1214	* This function goes through all objects below and including top, and
1190	* merges op to the first matching object.	1215	* merges op to the first matching object.
1191	* If top is NULL, it is calculated.	1216	* If top is NULL, it is calculated.
1192	* Returns pointer to object if it succeded in the merge, otherwise NULL	1217	* Returns pointer to object if it succeded in the merge, otherwise NULL
1193	*/	1218	*/
1194		1219	object *
1195	object *merge_ob(object *op, object *top) {	1220	merge_ob (object *op, object *top)
		1221	{
1196	if(!op->nrof)	1222	if (!op->nrof)
1197	return 0;	1223	return 0;
		1224
1198	if(top==NULL)	1225	if (top == NULL)
1199	for(top=op;top!=NULL&&top->above!=NULL;top=top->above);	1226	for (top = op; top != NULL && top->above != NULL; top = top->above);
		1227
1200	for(;top!=NULL;top=top->below) {	1228	for (; top != NULL; top = top->below)
		1229	{
1201	if(top==op)	1230	if (top == op)
1202	continue;	1231	continue;
1203	if (CAN_MERGE(op,top))	1232	if (CAN_MERGE (op, top))
1204	{	1233	{
1205	top->nrof+=op->nrof;	1234	top->nrof += op->nrof;
		1235
1206	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/	1236	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/
1207	op->weight = 0; /* Don't want any adjustements now */	1237	op->weight = 0; /* Don't want any adjustements now */
1208	remove_ob(op);	1238	remove_ob (op);
1209	free_object(op);	1239	free_object (op);
1210	return top;	1240	return top;
1211	}	1241	}
1212	}	1242	}
		1243
1213	return NULL;	1244	return 0;
1214	}	1245	}
1215		1246
1216	/*	1247	/*
1217	* same as insert_ob_in_map except it handle separate coordinates and do a clean	1248	* same as insert_ob_in_map except it handle separate coordinates and do a clean
1218	* job preparing multi-part monsters	1249	* job preparing multi-part monsters
1219	*/	1250	*/
		1251	object *
1220	object *insert_ob_in_map_at(object *op, mapstruct *m, object *originator, int flag, int x, int y){	1252	insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)
		1253	{
1221	object* tmp;	1254	object *tmp;
		1255
1222	if (op->head)	1256	if (op->head)
1223	op=op->head;	1257	op = op->head;
		1258
1224	for (tmp=op;tmp;tmp=tmp->more){	1259	for (tmp = op; tmp; tmp = tmp->more)
		1260	{
1225	tmp->x=x+tmp->arch->clone.x;	1261	tmp->x = x + tmp->arch->clone.x;
1226	tmp->y=y+tmp->arch->clone.y;	1262	tmp->y = y + tmp->arch->clone.y;
1227	}	1263	}
		1264
1228	return insert_ob_in_map (op, m, originator, flag);	1265	return insert_ob_in_map (op, m, originator, flag);
1229	}	1266	}
1230		1267
1231	/*	1268	/*
1232	* insert_ob_in_map (op, map, originator, flag):	1269	* insert_ob_in_map (op, map, originator, flag):
1233	* This function inserts the object in the two-way linked list	1270	* This function inserts the object in the two-way linked list
…		…
1247	* new object if 'op' was merged with other object	1284	* new object if 'op' was merged with other object
1248	* NULL if 'op' was destroyed	1285	* NULL if 'op' was destroyed
1249	* just 'op' otherwise	1286	* just 'op' otherwise
1250	*/	1287	*/
1251		1288
		1289	object *
1252	object *insert_ob_in_map (object *op, mapstruct *m, object *originator, int flag)	1290	insert_ob_in_map (object *op, maptile *m, object *originator, int flag)
1253	{	1291	{
1254	object *tmp, *top, *floor=NULL;	1292	object *tmp, *top, *floor = NULL;
1255	sint16 x,y;	1293	sint16 x, y;
1256		1294
1257	if (QUERY_FLAG (op, FLAG_FREED)) {	1295	if (QUERY_FLAG (op, FLAG_FREED))
		1296	{
1258	LOG (llevError, "Trying to insert freed object!\n");	1297	LOG (llevError, "Trying to insert freed object!\n");
		1298	return NULL;
		1299	}
		1300
		1301	if (m == NULL)
		1302	{
		1303	char *dump = dump_object (op);
		1304	LOG (llevError, "Trying to insert in null-map!\n%s\n", dump);
		1305	free (dump);
		1306	return op;
		1307	}
		1308
		1309	if (out_of_map (m, op->x, op->y))
		1310	{
		1311	char *dump = dump_object (op);
		1312	LOG (llevError, "Trying to insert object outside the map.\n%s\n", dump);
		1313	#ifdef MANY_CORES
		1314	/* Better to catch this here, as otherwise the next use of this object
		1315	* is likely to cause a crash. Better to find out where it is getting
		1316	* improperly inserted.
		1317	*/
		1318	abort ();
		1319	#endif
		1320	free (dump);
		1321	return op;
		1322	}
		1323
		1324	if (!QUERY_FLAG (op, FLAG_REMOVED))
		1325	{
		1326	char *dump = dump_object (op);
		1327	LOG (llevError, "Trying to insert (map) inserted object.\n%s\n", dump);
		1328	free (dump);
		1329	return op;
		1330	}
		1331
		1332	if (op->more != NULL)
		1333	{
		1334	/* The part may be on a different map. */
		1335
		1336	object *more = op->more;
		1337
		1338	/* We really need the caller to normalize coordinates - if
		1339	* we set the map, that doesn't work if the location is within
		1340	* a map and this is straddling an edge. So only if coordinate
		1341	* is clear wrong do we normalize it.
		1342	*/
		1343	if (OUT_OF_REAL_MAP (more->map, more->x, more->y))
		1344	more->map = get_map_from_coord (m, &more->x, &more->y);
		1345	else if (!more->map)
		1346	{
		1347	/* For backwards compatibility - when not dealing with tiled maps,
		1348	* more->map should always point to the parent.
		1349	*/
		1350	more->map = m;
		1351	}
		1352
		1353	if (insert_ob_in_map (more, more->map, originator, flag) == NULL)
		1354	{
		1355	if (!op->head)
		1356	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");
		1357
		1358	return NULL;
		1359	}
		1360	}
		1361
		1362	CLEAR_FLAG (op, FLAG_REMOVED);
		1363
		1364	/* Ideally, the caller figures this out. However, it complicates a lot
		1365	* of areas of callers (eg, anything that uses find_free_spot would now
		1366	* need extra work
		1367	*/
		1368	op->map = get_map_from_coord (m, &op->x, &op->y);
		1369	x = op->x;
		1370	y = op->y;
		1371
		1372	/* this has to be done after we translate the coordinates.
		1373	*/
		1374	if (op->nrof && !(flag & INS_NO_MERGE))
		1375	for (tmp = GET_MAP_OB (op->map, x, y); tmp != NULL; tmp = tmp->above)
		1376	if (CAN_MERGE (op, tmp))
		1377	{
		1378	op->nrof += tmp->nrof;
		1379	remove_ob (tmp);
		1380	free_object (tmp);
		1381	}
		1382
		1383	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */
		1384	CLEAR_FLAG (op, FLAG_INV_LOCKED);
		1385
		1386	if (!QUERY_FLAG (op, FLAG_ALIVE))
		1387	CLEAR_FLAG (op, FLAG_NO_STEAL);
		1388
		1389	if (flag & INS_BELOW_ORIGINATOR)
		1390	{
		1391	if (originator->map != op->map || originator->x != op->x || originator->y != op->y)
		1392	{
		1393	LOG (llevError, "insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");
		1394	abort ();
		1395	}
		1396
		1397	op->above = originator;
		1398	op->below = originator->below;
		1399
		1400	if (op->below)
		1401	op->below->above = op;
		1402	else
		1403	SET_MAP_OB (op->map, op->x, op->y, op);
		1404
		1405	/* since *below* originator, no need to update top */
		1406	originator->below = op;
		1407	}
		1408	else
		1409	{
		1410	/* If there are other objects, then */
		1411	if ((!(flag & INS_MAP_LOAD)) && ((top = GET_MAP_OB (op->map, op->x, op->y)) != NULL))
		1412	{
		1413	object *last = NULL;
		1414
		1415	/*
		1416	* If there are multiple objects on this space, we do some trickier handling.
		1417	* We've already dealt with merging if appropriate.
		1418	* Generally, we want to put the new object on top. But if
		1419	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last
		1420	* floor, we want to insert above that and no further.
		1421	* Also, if there are spell objects on this space, we stop processing
		1422	* once we get to them. This reduces the need to traverse over all of
		1423	* them when adding another one - this saves quite a bit of cpu time
		1424	* when lots of spells are cast in one area. Currently, it is presumed
		1425	* that flying non pickable objects are spell objects.
		1426	*/
		1427
		1428	while (top != NULL)
		1429	{
		1430	if (QUERY_FLAG (top, FLAG_IS_FLOOR) || QUERY_FLAG (top, FLAG_OVERLAY_FLOOR))
		1431	floor = top;
		1432
		1433	if (QUERY_FLAG (top, FLAG_NO_PICK) && (top->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (top, FLAG_IS_FLOOR))
		1434	{
		1435	/* We insert above top, so we want this object below this */
		1436	top = top->below;
		1437	break;
		1438	}
		1439
		1440	last = top;
		1441	top = top->above;
		1442	}
		1443
		1444	/* Don't want top to be NULL, so set it to the last valid object */
		1445	top = last;
		1446
		1447	/* We let update_position deal with figuring out what the space
		1448	* looks like instead of lots of conditions here.
		1449	* makes things faster, and effectively the same result.
		1450	*/
		1451
		1452	/* Have object 'fall below' other objects that block view.
		1453	* Unless those objects are exits, type 66
		1454	* If INS_ON_TOP is used, don't do this processing
		1455	* Need to find the object that in fact blocks view, otherwise
		1456	* stacking is a bit odd.
		1457	*/
		1458	if (!(flag & INS_ON_TOP) &&
		1459	(get_map_flags (op->map, NULL, op->x, op->y, NULL, NULL) & P_BLOCKSVIEW) && (op->face && !op->face->visibility))
		1460	{
		1461	for (last = top; last != floor; last = last->below)
		1462	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))
		1463	break;
		1464	/* Check to see if we found the object that blocks view,
		1465	* and make sure we have a below pointer for it so that
		1466	* we can get inserted below this one, which requires we
		1467	* set top to the object below us.
		1468	*/
		1469	if (last && last->below && last != floor)
		1470	top = last->below;
		1471	}
		1472	} /* If objects on this space */
		1473
		1474	if (flag & INS_MAP_LOAD)
		1475	top = GET_MAP_TOP (op->map, op->x, op->y);
		1476
		1477	if (flag & INS_ABOVE_FLOOR_ONLY)
		1478	top = floor;
		1479
		1480	/* Top is the object that our object (op) is going to get inserted above.
		1481	*/
		1482
		1483	/* First object on this space */
		1484	if (!top)
		1485	{
		1486	op->above = GET_MAP_OB (op->map, op->x, op->y);
		1487
		1488	if (op->above)
		1489	op->above->below = op;
		1490
		1491	op->below = NULL;
		1492	SET_MAP_OB (op->map, op->x, op->y, op);
		1493	}
		1494	else
		1495	{ /* get inserted into the stack above top */
		1496	op->above = top->above;
		1497
		1498	if (op->above)
		1499	op->above->below = op;
		1500
		1501	op->below = top;
		1502	top->above = op;
		1503	}
		1504
		1505	if (op->above == NULL)
		1506	SET_MAP_TOP (op->map, op->x, op->y, op);
		1507	} /* else not INS_BELOW_ORIGINATOR */
		1508
		1509	if (op->type == PLAYER)
		1510	op->contr->do_los = 1;
		1511
		1512	/* If we have a floor, we know the player, if any, will be above
		1513	* it, so save a few ticks and start from there.
		1514	*/
		1515	if (!(flag & INS_MAP_LOAD))
		1516	for (tmp = floor ? floor : GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)
		1517	if (tmp->type == PLAYER)
		1518	tmp->contr->socket.update_look = 1;
		1519
		1520	/* If this object glows, it may affect lighting conditions that are
		1521	* visible to others on this map. But update_all_los is really
		1522	* an inefficient way to do this, as it means los for all players
		1523	* on the map will get recalculated. The players could very well
		1524	* be far away from this change and not affected in any way -
		1525	* this should get redone to only look for players within range,
		1526	* or just updating the P_NEED_UPDATE for spaces within this area
		1527	* of effect may be sufficient.
		1528	*/
		1529	if (MAP_DARKNESS (op->map) && (op->glow_radius != 0))
		1530	update_all_los (op->map, op->x, op->y);
		1531
		1532	/* updates flags (blocked, alive, no magic, etc) for this map space */
		1533	update_object (op, UP_OBJ_INSERT);
		1534
		1535	/* Don't know if moving this to the end will break anything. However,
		1536	* we want to have update_look set above before calling this.
		1537	*
		1538	* check_move_on() must be after this because code called from
		1539	* check_move_on() depends on correct map flags (so functions like
		1540	* blocked() and wall() work properly), and these flags are updated by
		1541	* update_object().
		1542	*/
		1543
		1544	/* if this is not the head or flag has been passed, don't check walk on status */
		1545	if (!(flag & INS_NO_WALK_ON) && !op->head)
		1546	{
		1547	if (check_move_on (op, originator))
1259	return NULL;	1548	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		1549
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	1550	/* If we are a multi part object, lets work our way through the check
1472	* walk on's.	1551	* walk on's.
1473	*/	1552	*/
1474	for (tmp=op->more; tmp!=NULL; tmp=tmp->more)	1553	for (tmp = op->more; tmp != NULL; tmp = tmp->more)
1475	if (check_move_on (tmp, originator))	1554	if (check_move_on (tmp, originator))
1476	return NULL;	1555	return NULL;
1477	}	1556	}
		1557
1478	return op;	1558	return op;
1479	}	1559	}
1480		1560
1481	/* this function inserts an object in the map, but if it	1561	/* 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.	1562	* 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.	1563	* op is the object to insert it under: supplies x and the map.
1484	*/	1564	*/
		1565	void
1485	void replace_insert_ob_in_map(const char *arch_string, object *op) {	1566	replace_insert_ob_in_map (const char *arch_string, object *op)
		1567	{
1486	object *tmp;	1568	object *
1487	object *tmp1;	1569	tmp;
		1570	object *
		1571	tmp1;
1488		1572
1489	/* first search for itself and remove any old instances */	1573	/* first search for itself and remove any old instances */
1490		1574
1491	for(tmp=GET_MAP_OB(op->map,op->x,op->y); tmp!=NULL; tmp=tmp->above) {	1575	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)
		1576	{
1492	if(!strcmp(tmp->arch->name,arch_string)) /* same archetype */ {	1577	if (!strcmp (tmp->arch->name, arch_string)) /* same archetype */
		1578	{
1493	remove_ob(tmp);	1579	remove_ob (tmp);
1494	free_object(tmp);	1580	free_object (tmp);
1495	}	1581	}
1496	}	1582	}
1497		1583
1498	tmp1=arch_to_object(find_archetype(arch_string));	1584	tmp1 = arch_to_object (archetype::find (arch_string));
1499		1585
1500		1586	tmp1->x = op->x;
1501	tmp1->x = op->x; tmp1->y = op->y;	1587	tmp1->y = op->y;
1502	insert_ob_in_map(tmp1,op->map,op,0);	1588	insert_ob_in_map (tmp1, op->map, op, 0);
1503	}	1589	}
1504		1590
1505	/*	1591	/*
1506	* get_split_ob(ob,nr) splits up ob into two parts. The part which	1592	* 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	1593	* is returned contains nr objects, and the remaining parts contains
1508	* the rest (or is removed and freed if that number is 0).	1594	* the rest (or is removed and freed if that number is 0).
1509	* On failure, NULL is returned, and the reason put into the	1595	* On failure, NULL is returned, and the reason put into the
1510	* global static errmsg array.	1596	* global static errmsg array.
1511	*/	1597	*/
1512		1598
		1599	object *
1513	object *get_split_ob(object *orig_ob, uint32 nr) {	1600	get_split_ob (object *orig_ob, uint32 nr)
1514	object *newob;	1601	{
		1602	object *
		1603	newob;
		1604	int
1515	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);	1605	is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);
1516		1606
1517	if(orig_ob->nrof<nr) {	1607	if (orig_ob->nrof < nr)
1518	sprintf(errmsg,"There are only %d %ss.",	1608	{
1519	orig_ob->nrof?orig_ob->nrof:1, &orig_ob->name);	1609	sprintf (errmsg, "There are only %d %ss.", orig_ob->nrof ? orig_ob->nrof : 1, &orig_ob->name);
1520	return NULL;	1610	return NULL;
1521	}	1611	}
		1612
1522	newob = object_create_clone(orig_ob);	1613	newob = object_create_clone (orig_ob);
		1614
1523	if((orig_ob->nrof-=nr)<1) {	1615	if ((orig_ob->nrof -= nr) < 1)
		1616	{
1524	if ( ! is_removed)	1617	if (!is_removed)
1525	remove_ob(orig_ob);	1618	remove_ob (orig_ob);
1526	free_object2(orig_ob, 1);	1619	free_object2 (orig_ob, 1);
1527	}	1620	}
1528	else if ( ! is_removed) {	1621	else if (!is_removed)
		1622	{
1529	if(orig_ob->env!=NULL)	1623	if (orig_ob->env != NULL)
1530	sub_weight (orig_ob->env,orig_ob->weight*nr);	1624	sub_weight (orig_ob->env, orig_ob->weight * nr);
1531	if (orig_ob->env == NULL && orig_ob->map->in_memory!=MAP_IN_MEMORY) {	1625	if (orig_ob->env == NULL && orig_ob->map->in_memory != MAP_IN_MEMORY)
		1626	{
1532	strcpy(errmsg, "Tried to split object whose map is not in memory.");	1627	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");	1628	LOG (llevDebug, "Error, Tried to split object whose map is not in memory.\n");
1535	return NULL;	1629	return NULL;
1536	}	1630	}
1537	}	1631	}
		1632
1538	newob->nrof=nr;	1633	newob->nrof = nr;
1539		1634
1540	return newob;	1635	return newob;
1541	}	1636	}
1542		1637
1543	/*	1638	/*
1544	* decrease_ob_nr(object, number) decreases a specified number from	1639	* decrease_ob_nr(object, number) decreases a specified number from
1545	* the amount of an object. If the amount reaches 0, the object	1640	* the amount of an object. If the amount reaches 0, the object
1546	* is subsequently removed and freed.	1641	* is subsequently removed and freed.
1547	*	1642	*
1548	* Return value: 'op' if something is left, NULL if the amount reached 0	1643	* Return value: 'op' if something is left, NULL if the amount reached 0
1549	*/	1644	*/
1550		1645
		1646	object *
1551	object *decrease_ob_nr (object *op, uint32 i)	1647	decrease_ob_nr (object *op, uint32 i)
1552	{	1648	{
1553	object *tmp;	1649	object *tmp;
1554	player *pl;	1650	player *pl;
1555		1651
1556	if (i == 0) /* objects with op->nrof require this check */	1652	if (i == 0) /* objects with op->nrof require this check */
1557	return op;	1653	return op;
1558		1654
1559	if (i > op->nrof)	1655	if (i > op->nrof)
1560	i = op->nrof;	1656	i = op->nrof;
1561		1657
1562	if (QUERY_FLAG (op, FLAG_REMOVED))	1658	if (QUERY_FLAG (op, FLAG_REMOVED))
		1659	op->nrof -= i;
		1660	else if (op->env != NULL)
		1661	{
		1662	/* is this object in the players inventory, or sub container
		1663	* therein?
		1664	*/
		1665	tmp = is_player_inv (op->env);
		1666	/* nope. Is this a container the player has opened?
		1667	* If so, set tmp to that player.
		1668	* IMO, searching through all the players will mostly
		1669	* likely be quicker than following op->env to the map,
		1670	* and then searching the map for a player.
		1671	*/
		1672	if (!tmp)
		1673	{
		1674	for (pl = first_player; pl; pl = pl->next)
		1675	if (pl->ob->container == op->env)
		1676	break;
		1677	if (pl)
		1678	tmp = pl->ob;
		1679	else
		1680	tmp = NULL;
		1681	}
		1682
		1683	if (i < op->nrof)
		1684	{
		1685	sub_weight (op->env, op->weight * i);
		1686	op->nrof -= i;
		1687	if (tmp)
		1688	{
		1689	esrv_send_item (tmp, op);
		1690	}
		1691	}
		1692	else
		1693	{
		1694	remove_ob (op);
		1695	op->nrof = 0;
		1696	if (tmp)
		1697	{
		1698	esrv_del_item (tmp->contr, op->count);
		1699	}
		1700	}
1563	{	1701	}
		1702	else
		1703	{
		1704	object *above = op->above;
		1705
		1706	if (i < op->nrof)
1564	op->nrof -= i;	1707	op->nrof -= i;
1565	}	1708	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	}	1709	{
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);	1710	remove_ob (op);
1593	op->nrof = 0;	1711	op->nrof = 0;
1594	if (tmp) {
1595	esrv_del_item(tmp->contr, op->count);
1596	}	1712	}
1597	}
1598	}
1599	else
1600	{
1601	object *above = op->above;
1602		1713
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 */	1714	/* Since we just removed op, op->above is null */
1610	for (tmp = above; tmp != NULL; tmp = tmp->above)	1715	for (tmp = above; tmp != NULL; tmp = tmp->above)
1611	if (tmp->type == PLAYER) {	1716	if (tmp->type == PLAYER)
		1717	{
1612	if (op->nrof)	1718	if (op->nrof)
1613	esrv_send_item(tmp, op);	1719	esrv_send_item (tmp, op);
1614	else	1720	else
1615	esrv_del_item(tmp->contr, op->count);	1721	esrv_del_item (tmp->contr, op->count);
1616	}	1722	}
1617	}	1723	}
1618		1724
1619	if (op->nrof) {	1725	if (op->nrof)
1620	return op;	1726	return op;
1621	} else {	1727	else
		1728	{
1622	free_object (op);	1729	free_object (op);
1623	return NULL;	1730	return NULL;
1624	}	1731	}
1625	}	1732	}
1626		1733
1627	/*	1734	/*
1628	* add_weight(object, weight) adds the specified weight to an object,	1735	* add_weight(object, weight) adds the specified weight to an object,
1629	* and also updates how much the environment(s) is/are carrying.	1736	* and also updates how much the environment(s) is/are carrying.
1630	*/	1737	*/
1631		1738
		1739	void
1632	void add_weight (object *op, signed long weight) {	1740	add_weight (object *op, signed long weight)
		1741	{
1633	while (op!=NULL) {	1742	while (op != NULL)
		1743	{
1634	if (op->type == CONTAINER) {	1744	if (op->type == CONTAINER)
1635	weight=(signed long)(weight*(100-op->stats.Str)/100);	1745	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1636	}	1746
1637	op->carrying+=weight;	1747	op->carrying += weight;
1638	op=op->env;	1748	op = op->env;
1639	}	1749	}
1640	}	1750	}
1641		1751
1642	/*	1752	/*
1643	* insert_ob_in_ob(op,environment):	1753	* insert_ob_in_ob(op,environment):
1644	* This function inserts the object op in the linked list	1754	* This function inserts the object op in the linked list
…		…
1651	*	1761	*
1652	* The function returns now pointer to inserted item, and return value can	1762	* The function returns now pointer to inserted item, and return value can
1653	* be != op, if items are merged. -Tero	1763	* be != op, if items are merged. -Tero
1654	*/	1764	*/
1655		1765
		1766	object *
1656	object *insert_ob_in_ob(object *op,object *where) {	1767	insert_ob_in_ob (object *op, object *where)
1657	object *tmp, *otmp;	1768	{
		1769	object *
		1770	tmp, *
		1771	otmp;
1658		1772
1659	if(!QUERY_FLAG(op,FLAG_REMOVED)) {	1773	if (!QUERY_FLAG (op, FLAG_REMOVED))
1660	dump_object(op);	1774	{
		1775	char *dump = dump_object (op);
1661	LOG(llevError,"Trying to insert (ob) inserted object.\n%s\n", errmsg);	1776	LOG (llevError, "Trying to insert (ob) inserted object.\n%s\n", dump);
		1777	free (dump);
1662	return op;	1778	return op;
1663	}	1779	}
		1780
1664	if(where==NULL) {	1781	if (where == NULL)
1665	dump_object(op);	1782	{
		1783	char *dump = dump_object (op);
1666	LOG(llevError,"Trying to put object in NULL.\n%s\n", errmsg);	1784	LOG (llevError, "Trying to put object in NULL.\n%s\n", dump);
		1785	free (dump);
1667	return op;	1786	return op;
1668	}	1787	}
		1788
1669	if (where->head) {	1789	if (where->head)
1670	LOG(llevDebug,	1790	{
1671	"Warning: Tried to insert object wrong part of multipart object.\n");	1791	LOG (llevDebug, "Warning: Tried to insert object wrong part of multipart object.\n");
1672	where = where->head;	1792	where = where->head;
1673	}	1793	}
		1794
1674	if (op->more) {	1795	if (op->more)
		1796	{
1675	LOG(llevError, "Tried to insert multipart object %s (%d)\n",	1797	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);
1676	&op->name, op->count);
1677	return op;	1798	return op;
1678	}	1799	}
		1800
1679	CLEAR_FLAG(op, FLAG_OBJ_ORIGINAL);	1801	CLEAR_FLAG (op, FLAG_OBJ_ORIGINAL);
1680	CLEAR_FLAG(op, FLAG_REMOVED);	1802	CLEAR_FLAG (op, FLAG_REMOVED);
1681	if(op->nrof) {	1803	if (op->nrof)
		1804	{
1682	for(tmp=where->inv;tmp!=NULL;tmp=tmp->below)	1805	for (tmp = where->inv; tmp != NULL; tmp = tmp->below)
1683	if ( CAN_MERGE(tmp,op) ) {	1806	if (CAN_MERGE (tmp, op))
		1807	{
1684	/* return the original object and remove inserted object	1808	/* return the original object and remove inserted object
1685	(client needs the original object) */	1809	(client needs the original object) */
1686	tmp->nrof += op->nrof;	1810	tmp->nrof += op->nrof;
1687	/* Weight handling gets pretty funky. Since we are adding to	1811	/* Weight handling gets pretty funky. Since we are adding to
1688	* tmp->nrof, we need to increase the weight.	1812	* tmp->nrof, we need to increase the weight.
1689	*/	1813	*/
1690	add_weight (where, op->weight*op->nrof);	1814	add_weight (where, op->weight * op->nrof);
1691	SET_FLAG(op, FLAG_REMOVED);	1815	SET_FLAG (op, FLAG_REMOVED);
1692	free_object(op); /* free the inserted object */	1816	free_object (op); /* free the inserted object */
1693	op = tmp;	1817	op = tmp;
1694	remove_ob (op); /* and fix old object's links */	1818	remove_ob (op); /* and fix old object's links */
1695	CLEAR_FLAG(op, FLAG_REMOVED);	1819	CLEAR_FLAG (op, FLAG_REMOVED);
1696	break;	1820	break;
1697	}	1821	}
1698		1822
1699	/* I assume combined objects have no inventory	1823	/* I assume combined objects have no inventory
1700	* We add the weight - this object could have just been removed	1824	* We add the weight - this object could have just been removed
1701	* (if it was possible to merge). calling remove_ob will subtract	1825	* (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	1826	* the weight, so we need to add it in again, since we actually do
1703	* the linking below	1827	* the linking below
1704	*/	1828	*/
1705	add_weight (where, op->weight*op->nrof);	1829	add_weight (where, op->weight * op->nrof);
		1830	}
1706	} else	1831	else
1707	add_weight (where, (op->weight+op->carrying));	1832	add_weight (where, (op->weight + op->carrying));
1708		1833
1709	otmp=is_player_inv(where);	1834	otmp = is_player_inv (where);
1710	if (otmp&&otmp->contr!=NULL) {	1835	if (otmp && otmp->contr != NULL)
		1836	{
1711	if (!QUERY_FLAG(otmp,FLAG_NO_FIX_PLAYER))	1837	if (!QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1712	fix_player(otmp);	1838	fix_player (otmp);
1713	}	1839	}
1714		1840
1715	op->map=NULL;	1841	op->map = NULL;
1716	op->env=where;	1842	op->env = where;
1717	op->above=NULL;	1843	op->above = NULL;
1718	op->below=NULL;	1844	op->below = NULL;
1719	op->x=0,op->y=0;	1845	op->x = 0, op->y = 0;
1720		1846
1721	/* reset the light list and los of the players on the map */	1847	/* reset the light list and los of the players on the map */
1722	if((op->glow_radius!=0)&&where->map)	1848	if ((op->glow_radius != 0) && where->map)
1723	{	1849	{
1724	#ifdef DEBUG_LIGHTS	1850	#ifdef DEBUG_LIGHTS
1725	LOG(llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n",	1851	LOG (llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n", op->name);
1726	op->name);
1727	#endif /* DEBUG_LIGHTS */	1852	#endif /* DEBUG_LIGHTS */
		1853	if (MAP_DARKNESS (where->map))
1728	if (MAP_DARKNESS(where->map)) update_all_los(where->map, where->x, where->y);	1854	update_all_los (where->map, where->x, where->y);
1729	}	1855	}
1730		1856
1731	/* Client has no idea of ordering so lets not bother ordering it here.	1857	/* Client has no idea of ordering so lets not bother ordering it here.
1732	* It sure simplifies this function...	1858	* It sure simplifies this function...
1733	*/	1859	*/
1734	if (where->inv==NULL)	1860	if (where->inv == NULL)
1735	where->inv=op;	1861	where->inv = op;
1736	else {	1862	else
		1863	{
1737	op->below = where->inv;	1864	op->below = where->inv;
1738	op->below->above = op;	1865	op->below->above = op;
1739	where->inv = op;	1866	where->inv = op;
1740	}	1867	}
1741	return op;	1868	return op;
1742	}	1869	}
1743		1870
1744	/*	1871	/*
1745	* Checks if any objects has a move_type that matches objects	1872	* 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	1887	* 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	1888	* object being inserted. insert_ob_in_map may not put new objects
1762	* on top.	1889	* on top.
1763	*/	1890	*/
1764		1891
		1892	int
1765	int check_move_on (object *op, object *originator)	1893	check_move_on (object *op, object *originator)
1766	{	1894	{
1767	object *tmp;	1895	object *tmp;
1768	tag_t tag;
1769	mapstruct *m=op->map;	1896	maptile *m = op->map;
1770	int x=op->x, y=op->y;	1897	int x = op->x, y = op->y;
		1898
1771	MoveType move_on, move_slow, move_block;	1899	MoveType move_on, move_slow, move_block;
1772		1900
1773	if(QUERY_FLAG(op,FLAG_NO_APPLY))	1901	if (QUERY_FLAG (op, FLAG_NO_APPLY))
1774	return 0;	1902	return 0;
1775		1903
1776	tag = op->count;
1777
1778	move_on = GET_MAP_MOVE_ON(op->map, op->x, op->y);	1904	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);	1905	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);	1906	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);
1781		1907
1782	/* if nothing on this space will slow op down or be applied,	1908	/* 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	1909	* 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	1910	* is set, as lots of objects don't have it set - we treat that
1785	* as walking.	1911	* as walking.
1786	*/	1912	*/
1787	if (op->move_type && !(op->move_type & move_on) && !(op->move_type & move_slow))	1913	if (op->move_type && !(op->move_type & move_on) && !(op->move_type & move_slow))
1788	return 0;	1914	return 0;
1789		1915
1790	/* This is basically inverse logic of that below - basically,	1916	/* This is basically inverse logic of that below - basically,
1791	* if the object can avoid the move on or slow move, they do so,	1917	* 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	1918	* but can't do it if the alternate movement they are using is
1793	* blocked. Logic on this seems confusing, but does seem correct.	1919	* blocked. Logic on this seems confusing, but does seem correct.
1794	*/	1920	*/
1795	if ((op->move_type & ~move_on & ~move_block) != 0 &&	1921	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;	1922	return 0;
1797		1923
1798	/* The objects have to be checked from top to bottom.	1924	/* The objects have to be checked from top to bottom.
1799	* Hence, we first go to the top:	1925	* Hence, we first go to the top:
1800	*/	1926	*/
1801		1927
1802	for (tmp=GET_MAP_OB(op->map, op->x, op->y); tmp!=NULL &&	1928	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) {	1929	{
1804	/* Trim the search when we find the first other spell effect	1930	/* Trim the search when we find the first other spell effect
1805	* this helps performance so that if a space has 50 spell objects,	1931	* this helps performance so that if a space has 50 spell objects,
1806	* we don't need to check all of them.	1932	* we don't need to check all of them.
1807	*/	1933	*/
1808	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG(tmp, FLAG_NO_PICK)) break;	1934	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG (tmp, FLAG_NO_PICK))
		1935	break;
		1936	}
		1937
		1938	for (; tmp; tmp = tmp->below)
1809	}	1939	{
1810	for(;tmp!=NULL; tmp=tmp->below) {	1940	if (tmp == op)
1811	if (tmp == op) continue; /* Can't apply yourself */	1941	continue; /* Can't apply yourself */
1812		1942
1813	/* Check to see if one of the movement types should be slowed down.	1943	/* 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	1944	* Second check makes sure that the movement types not being slowed
1815	* (~slow_move) is not blocked on this space - just because the	1945	* (~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	1946	* 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.	1947	* swim on that space, can't use it to avoid the penalty.
1818	*/	1948	*/
1819	if (!QUERY_FLAG(op, FLAG_WIZPASS)) {	1949	if (!QUERY_FLAG (op, FLAG_WIZPASS))
		1950	{
1820	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||	1951	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)) {	1952	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))
		1953	{
1823		1954
1824	float diff;	1955	float
1825
1826	diff = tmp->move_slow_penalty*FABS(op->speed);	1956	diff = tmp->move_slow_penalty * FABS (op->speed);
		1957
1827	if (op->type == PLAYER) {	1958	if (op->type == PLAYER)
1828	if ((QUERY_FLAG(tmp, FLAG_IS_HILLY) && find_skill_by_number(op, SK_CLIMBING)) ||	1959	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))) {	1960	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))
1830	diff /= 4.0;	1961	diff /= 4.0;
1831	}	1962
1832	}
1833	op->speed_left -= diff;	1963	op->speed_left -= diff;
1834	}	1964	}
1835	}	1965	}
1836		1966
1837	/* Basically same logic as above, except now for actual apply. */	1967	/* Basically same logic as above, except now for actual apply. */
1838	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||	1968	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)) {	1969	((op->move_type & tmp->move_on) && (op->move_type & ~tmp->move_on & ~tmp->move_block) == 0))
1841		1970	{
1842	move_apply(tmp, op, originator);	1971	move_apply (tmp, op, originator);
		1972
1843	if (was_destroyed (op, tag))	1973	if (op->destroyed ())
1844	return 1;	1974	return 1;
1845		1975
1846	/* what the person/creature stepped onto has moved the object	1976	/* what the person/creature stepped onto has moved the object
1847	* someplace new. Don't process any further - if we did,	1977	* someplace new. Don't process any further - if we did,
1848	* have a feeling strange problems would result.	1978	* have a feeling strange problems would result.
1849	*/	1979	*/
1850	if (op->map != m || op->x != x || op->y != y) return 0;	1980	if (op->map != m || op->x != x || op->y != y)
		1981	return 0;
1851	}	1982	}
1852	}	1983	}
		1984
1853	return 0;	1985	return 0;
1854	}	1986	}
1855		1987
1856	/*	1988	/*
1857	* present_arch(arch, map, x, y) searches for any objects with	1989	* present_arch(arch, map, x, y) searches for any objects with
1858	* a matching archetype at the given map and coordinates.	1990	* a matching archetype at the given map and coordinates.
1859	* The first matching object is returned, or NULL if none.	1991	* The first matching object is returned, or NULL if none.
1860	*/	1992	*/
1861		1993
		1994	object *
1862	object *present_arch(const archetype *at, mapstruct *m, int x, int y) {	1995	present_arch (const archetype *at, maptile *m, int x, int y)
		1996	{
1863	object *tmp;	1997	object *
		1998	tmp;
		1999
1864	if(m==NULL || out_of_map(m,x,y)) {	2000	if (m == NULL || out_of_map (m, x, y))
		2001	{
1865	LOG(llevError,"Present_arch called outside map.\n");	2002	LOG (llevError, "Present_arch called outside map.\n");
1866	return NULL;	2003	return NULL;
1867	}	2004	}
1868	for(tmp=GET_MAP_OB(m,x,y); tmp != NULL; tmp = tmp->above)	2005	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)
1869	if(tmp->arch == at)	2006	if (tmp->arch == at)
1870	return tmp;	2007	return tmp;
1871	return NULL;	2008	return NULL;
1872	}	2009	}
1873		2010
1874	/*	2011	/*
1875	* present(type, map, x, y) searches for any objects with	2012	* present(type, map, x, y) searches for any objects with
1876	* a matching type variable at the given map and coordinates.	2013	* a matching type variable at the given map and coordinates.
1877	* The first matching object is returned, or NULL if none.	2014	* The first matching object is returned, or NULL if none.
1878	*/	2015	*/
1879		2016
		2017	object *
1880	object *present(unsigned char type,mapstruct *m, int x,int y) {	2018	present (unsigned char type, maptile *m, int x, int y)
		2019	{
1881	object *tmp;	2020	object *
		2021	tmp;
		2022
1882	if(out_of_map(m,x,y)) {	2023	if (out_of_map (m, x, y))
		2024	{
1883	LOG(llevError,"Present called outside map.\n");	2025	LOG (llevError, "Present called outside map.\n");
1884	return NULL;	2026	return NULL;
1885	}	2027	}
1886	for(tmp=GET_MAP_OB(m,x,y);tmp!=NULL;tmp=tmp->above)	2028	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)
1887	if(tmp->type==type)	2029	if (tmp->type == type)
1888	return tmp;	2030	return tmp;
1889	return NULL;	2031	return NULL;
1890	}	2032	}
1891		2033
1892	/*	2034	/*
1893	* present_in_ob(type, object) searches for any objects with	2035	* present_in_ob(type, object) searches for any objects with
1894	* a matching type variable in the inventory of the given object.	2036	* a matching type variable in the inventory of the given object.
1895	* The first matching object is returned, or NULL if none.	2037	* The first matching object is returned, or NULL if none.
1896	*/	2038	*/
1897		2039
		2040	object *
1898	object *present_in_ob(unsigned char type, const object *op) {	2041	present_in_ob (unsigned char type, const object *op)
		2042	{
1899	object *tmp;	2043	object *
		2044	tmp;
		2045
1900	for(tmp=op->inv;tmp!=NULL;tmp=tmp->below)	2046	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)
1901	if(tmp->type==type)	2047	if (tmp->type == type)
1902	return tmp;	2048	return tmp;
1903	return NULL;	2049	return NULL;
1904	}	2050	}
1905		2051
1906	/*	2052	/*
…		…
1916	* the object name, not the archetype name. this is so that the	2062	* 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	2063	* spell code can use one object type (force), but change it's name
1918	* to be unique.	2064	* to be unique.
1919	*/	2065	*/
1920		2066
		2067	object *
1921	object *present_in_ob_by_name(int type, const char *str, const object *op) {	2068	present_in_ob_by_name (int type, const char *str, const object *op)
		2069	{
1922	object *tmp;	2070	object *
		2071	tmp;
1923		2072
1924	for(tmp=op->inv; tmp!=NULL; tmp=tmp->below) {	2073	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)
		2074	{
1925	if ((type==-1 || tmp->type==type) && (!strcmp(str, tmp->name)))	2075	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))
1926	return tmp;	2076	return tmp;
1927	}	2077	}
1928	return NULL;	2078	return NULL;
1929	}	2079	}
1930		2080
1931	/*	2081	/*
1932	* present_arch_in_ob(archetype, object) searches for any objects with	2082	* present_arch_in_ob(archetype, object) searches for any objects with
1933	* a matching archetype in the inventory of the given object.	2083	* a matching archetype in the inventory of the given object.
1934	* The first matching object is returned, or NULL if none.	2084	* The first matching object is returned, or NULL if none.
1935	*/	2085	*/
1936		2086
		2087	object *
1937	object *present_arch_in_ob(const archetype *at, const object *op) {	2088	present_arch_in_ob (const archetype *at, const object *op)
		2089	{
1938	object *tmp;	2090	object *
		2091	tmp;
		2092
1939	for(tmp=op->inv;tmp!=NULL;tmp=tmp->below)	2093	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)
1940	if( tmp->arch == at)	2094	if (tmp->arch == at)
1941	return tmp;	2095	return tmp;
1942	return NULL;	2096	return NULL;
1943	}	2097	}
1944		2098
1945	/*	2099	/*
1946	* activate recursively a flag on an object inventory	2100	* activate recursively a flag on an object inventory
1947	*/	2101	*/
		2102	void
1948	void flag_inv(object*op, int flag){	2103	flag_inv (object *op, int flag)
		2104	{
1949	object *tmp;	2105	object *
		2106	tmp;
		2107
1950	if(op->inv)	2108	if (op->inv)
1951	for(tmp = op->inv; tmp != NULL; tmp = tmp->below){	2109	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)
		2110	{
1952	SET_FLAG(tmp, flag);	2111	SET_FLAG (tmp, flag);
1953	flag_inv(tmp,flag);	2112	flag_inv (tmp, flag);
1954	}	2113	}
1955	}/*	2114	} /*
1956	* desactivate recursively a flag on an object inventory	2115	* desactivate recursively a flag on an object inventory
1957	*/	2116	*/
		2117	void
1958	void unflag_inv(object*op, int flag){	2118	unflag_inv (object *op, int flag)
		2119	{
1959	object *tmp;	2120	object *
		2121	tmp;
		2122
1960	if(op->inv)	2123	if (op->inv)
1961	for(tmp = op->inv; tmp != NULL; tmp = tmp->below){	2124	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)
		2125	{
1962	CLEAR_FLAG(tmp, flag);	2126	CLEAR_FLAG (tmp, flag);
1963	unflag_inv(tmp,flag);	2127	unflag_inv (tmp, flag);
1964	}	2128	}
1965	}	2129	}
1966		2130
1967	/*	2131	/*
1968	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in	2132	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in
1969	* all it's inventory (recursively).	2133	* all it's inventory (recursively).
1970	* If checksums are used, a player will get set_cheat called for	2134	* 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.	2135	* him/her-self and all object carried by a call to this function.
1972	*/	2136	*/
1973		2137
		2138	void
1974	void set_cheat(object *op) {	2139	set_cheat (object *op)
		2140	{
1975	SET_FLAG(op, FLAG_WAS_WIZ);	2141	SET_FLAG (op, FLAG_WAS_WIZ);
1976	flag_inv(op, FLAG_WAS_WIZ);	2142	flag_inv (op, FLAG_WAS_WIZ);
1977	}	2143	}
1978		2144
1979	/*	2145	/*
1980	* find_free_spot(object, map, x, y, start, stop) will search for	2146	* 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	2147	* 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	2162	* 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	2163	* the archetype because that isn't correct if the monster has been
1998	* customized, changed states, etc.	2164	* customized, changed states, etc.
1999	*/	2165	*/
2000		2166
		2167	int
2001	int find_free_spot(const object *ob, mapstruct *m,int x,int y,int start,int stop) {	2168	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)
		2169	{
		2170	int
		2171	i,
2002	int i,index=0, flag;	2172	index = 0, flag;
		2173	static int
2003	static int altern[SIZEOFFREE];	2174	altern[SIZEOFFREE];
2004		2175
2005	for(i=start;i<stop;i++) {	2176	for (i = start; i < stop; i++)
		2177	{
2006	flag = ob_blocked(ob,m,x+freearr_x[i],y+freearr_y[i]);	2178	flag = ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]);
2007	if(!flag)	2179	if (!flag)
2008	altern[index++]=i;	2180	altern[index++] = i;
2009		2181
2010	/* Basically, if we find a wall on a space, we cut down the search size.	2182	/* 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.	2183	* 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 -	2184	* 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	2185	* 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	2186	* spaces in all the other directions, this will reduce the search space
2015	* to only the spaces immediately surrounding the target area, and	2187	* to only the spaces immediately surrounding the target area, and
2016	* won't look 2 spaces south of the target space.	2188	* won't look 2 spaces south of the target space.
2017	*/	2189	*/
2018	else if ((flag & AB_NO_PASS) && maxfree[i]<stop)	2190	else if ((flag & AB_NO_PASS) && maxfree[i] < stop)
2019	stop=maxfree[i];	2191	stop = maxfree[i];
2020	}	2192	}
2021	if(!index) return -1;	2193	if (!index)
		2194	return -1;
2022	return altern[RANDOM()%index];	2195	return altern[RANDOM () % index];
2023	}	2196	}
2024		2197
2025	/*	2198	/*
2026	* find_first_free_spot(archetype, mapstruct, x, y) works like	2199	* find_first_free_spot(archetype, maptile, x, y) works like
2027	* find_free_spot(), but it will search max number of squares.	2200	* find_free_spot(), but it will search max number of squares.
2028	* But it will return the first available spot, not a random choice.	2201	* 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.	2202	* Changed 0.93.2: Have it return -1 if there is no free spot available.
2030	*/	2203	*/
2031		2204
		2205	int
2032	int find_first_free_spot(const object *ob, mapstruct *m,int x,int y) {	2206	find_first_free_spot (const object *ob, maptile *m, int x, int y)
		2207	{
		2208	int
2033	int i;	2209	i;
		2210
2034	for(i=0;i<SIZEOFFREE;i++) {	2211	for (i = 0; i < SIZEOFFREE; i++)
		2212	{
2035	if(!ob_blocked(ob,m,x+freearr_x[i],y+freearr_y[i]))	2213	if (!ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]))
2036	return i;	2214	return i;
2037	}	2215	}
2038	return -1;	2216	return -1;
2039	}	2217	}
2040		2218
2041	/*	2219	/*
2042	* The function permute(arr, begin, end) randomly reorders the array	2220	* The function permute(arr, begin, end) randomly reorders the array
2043	* arr[begin..end-1].	2221	* arr[begin..end-1].
2044	*/	2222	*/
		2223	static void
2045	static void permute(int *arr, int begin, int end)	2224	permute (int *arr, int begin, int end)
2046	{	2225	{
2047	int i, j, tmp, len;	2226	int
		2227	i,
		2228	j,
		2229	tmp,
		2230	len;
2048		2231
2049	len = end-begin;	2232	len = end - begin;
2050	for(i = begin; i < end; i++)	2233	for (i = begin; i < end; i++)
2051	{	2234	{
2052	j = begin+RANDOM()%len;	2235	j = begin + RANDOM () % len;
2053		2236
2054	tmp = arr[i];	2237	tmp = arr[i];
2055	arr[i] = arr[j];	2238	arr[i] = arr[j];
2056	arr[j] = tmp;	2239	arr[j] = tmp;
2057	}	2240	}
2058	}	2241	}
2059		2242
2060	/* new function to make monster searching more efficient, and effective!	2243	/* new function to make monster searching more efficient, and effective!
2061	* This basically returns a randomized array (in the passed pointer) of	2244	* 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	2245	* 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	2246	* 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	2247	* 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.	2248	* the 3x3 area will be searched, just not in a predictable order.
2066	*/	2249	*/
		2250	void
2067	void get_search_arr(int *search_arr)	2251	get_search_arr (int *search_arr)
2068	{	2252	{
		2253	int
2069	int i;	2254	i;
2070		2255
2071	for(i = 0; i < SIZEOFFREE; i++)	2256	for (i = 0; i < SIZEOFFREE; i++)
2072	{	2257	{
2073	search_arr[i] = i;	2258	search_arr[i] = i;
2074	}	2259	}
2075		2260
2076	permute(search_arr, 1, SIZEOFFREE1+1);	2261	permute (search_arr, 1, SIZEOFFREE1 + 1);
2077	permute(search_arr, SIZEOFFREE1+1, SIZEOFFREE2+1);	2262	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);
2078	permute(search_arr, SIZEOFFREE2+1, SIZEOFFREE);	2263	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);
2079	}	2264	}
2080		2265
2081	/*	2266	/*
2082	* find_dir(map, x, y, exclude) will search some close squares in the	2267	* find_dir(map, x, y, exclude) will search some close squares in the
2083	* given map at the given coordinates for live objects.	2268	* given map at the given coordinates for live objects.
…		…
2089	* is actually want is going to try and move there. We need this info	2274	* 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	2275	* because we have to know what movement the thing looking to move
2091	* there is capable of.	2276	* there is capable of.
2092	*/	2277	*/
2093		2278
		2279	int
2094	int find_dir(mapstruct *m, int x, int y, object *exclude) {	2280	find_dir (maptile *m, int x, int y, object *exclude)
		2281	{
		2282	int
		2283	i,
2095	int i,max=SIZEOFFREE, mflags;	2284	max = SIZEOFFREE, mflags;
		2285
2096	sint16 nx, ny;	2286	sint16 nx, ny;
2097	object *tmp;	2287	object *
2098	mapstruct *mp;	2288	tmp;
		2289	maptile *
		2290	mp;
		2291
2099	MoveType blocked, move_type;	2292	MoveType blocked, move_type;
2100		2293
2101	if (exclude && exclude->head) {	2294	if (exclude && exclude->head)
		2295	{
2102	exclude = exclude->head;	2296	exclude = exclude->head;
2103	move_type = exclude->move_type;	2297	move_type = exclude->move_type;
2104	} else {	2298	}
		2299	else
		2300	{
2105	/* If we don't have anything, presume it can use all movement types. */	2301	/* If we don't have anything, presume it can use all movement types. */
2106	move_type=MOVE_ALL;	2302	move_type = MOVE_ALL;
		2303	}
		2304
		2305	for (i = 1; i < max; i++)
2107	}	2306	{
2108
2109	for(i=1;i<max;i++) {
2110	mp = m;	2307	mp = m;
2111	nx = x + freearr_x[i];	2308	nx = x + freearr_x[i];
2112	ny = y + freearr_y[i];	2309	ny = y + freearr_y[i];
2113		2310
2114	mflags = get_map_flags(m, &mp, nx, ny, &nx, &ny);	2311	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);
2115	if (mflags & P_OUT_OF_MAP) {	2312	if (mflags & P_OUT_OF_MAP)
		2313	{
2116	max = maxfree[i];	2314	max = maxfree[i];
		2315	}
2117	} else {	2316	else
		2317	{
2118	blocked = GET_MAP_MOVE_BLOCK(mp, nx, ny);	2318	blocked = GET_MAP_MOVE_BLOCK (mp, nx, ny);
2119		2319
2120	if ((move_type & blocked) == move_type) {	2320	if ((move_type & blocked) == move_type)
		2321	{
2121	max=maxfree[i];	2322	max = maxfree[i];
		2323	}
2122	} else if (mflags & P_IS_ALIVE) {	2324	else if (mflags & P_IS_ALIVE)
		2325	{
2123	for (tmp=GET_MAP_OB(mp,nx,ny); tmp!= NULL; tmp=tmp->above) {	2326	for (tmp = GET_MAP_OB (mp, nx, ny); tmp != NULL; tmp = tmp->above)
2124	if ((QUERY_FLAG(tmp,FLAG_MONSTER) || tmp->type==PLAYER) &&	2327	{
2125	(tmp != exclude ||(tmp->head && tmp->head != exclude))) {	2328	if ((QUERY_FLAG (tmp, FLAG_MONSTER) || tmp->type == PLAYER) && (tmp != exclude || (tmp->head && tmp->head != exclude)))
		2329	{
2126	break;	2330	break;
2127	}	2331	}
2128	}	2332	}
2129	if(tmp) {	2333	if (tmp)
		2334	{
2130	return freedir[i];	2335	return freedir[i];
2131	}	2336	}
2132	}	2337	}
2133	}	2338	}
2134	}	2339	}
2135	return 0;	2340	return 0;
2136	}	2341	}
2137		2342
2138	/*	2343	/*
2139	* distance(object 1, object 2) will return the square of the	2344	* distance(object 1, object 2) will return the square of the
2140	* distance between the two given objects.	2345	* distance between the two given objects.
2141	*/	2346	*/
2142		2347
		2348	int
2143	int distance(const object *ob1, const object *ob2) {	2349	distance (const object *ob1, const object *ob2)
		2350	{
2144	int i;	2351	int
2145	i= (ob1->x - ob2->x)*(ob1->x - ob2->x)+	2352	i;
2146	(ob1->y - ob2->y)*(ob1->y - ob2->y);	2353
		2354	i = (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);
2147	return i;	2355	return i;
2148	}	2356	}
2149		2357
2150	/*	2358	/*
2151	* find_dir_2(delta-x,delta-y) will return a direction in which	2359	* 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	2360	* an object which has subtracted the x and y coordinates of another
2153	* object, needs to travel toward it.	2361	* object, needs to travel toward it.
2154	*/	2362	*/
2155		2363
		2364	int
2156	int find_dir_2(int x, int y) {	2365	find_dir_2 (int x, int y)
		2366	{
2157	int q;	2367	int
		2368	q;
2158		2369
2159	if(y)	2370	if (y)
2160	q=x*100/y;	2371	q = x * 100 / y;
2161	else if (x)	2372	else if (x)
2162	q= -300*x;	2373	q = -300 * x;
2163	else	2374	else
2164	return 0;	2375	return 0;
2165		2376
2166	if(y>0) {	2377	if (y > 0)
		2378	{
2167	if(q < -242)	2379	if (q < -242)
2168	return 3 ;	2380	return 3;
2169	if (q < -41)	2381	if (q < -41)
2170	return 2 ;	2382	return 2;
2171	if (q < 41)	2383	if (q < 41)
2172	return 1 ;	2384	return 1;
2173	if (q < 242)	2385	if (q < 242)
2174	return 8 ;	2386	return 8;
2175	return 7 ;	2387	return 7;
2176	}	2388	}
2177		2389
2178	if (q < -242)	2390	if (q < -242)
2179	return 7 ;	2391	return 7;
2180	if (q < -41)	2392	if (q < -41)
2181	return 6 ;	2393	return 6;
2182	if (q < 41)	2394	if (q < 41)
2183	return 5 ;	2395	return 5;
2184	if (q < 242)	2396	if (q < 242)
2185	return 4 ;	2397	return 4;
2186		2398
2187	return 3 ;	2399	return 3;
2188	}	2400	}
2189		2401
2190	/*	2402	/*
2191	* absdir(int): Returns a number between 1 and 8, which represent	2403	* absdir(int): Returns a number between 1 and 8, which represent
2192	* the "absolute" direction of a number (it actually takes care of	2404	* the "absolute" direction of a number (it actually takes care of
2193	* "overflow" in previous calculations of a direction).	2405	* "overflow" in previous calculations of a direction).
2194	*/	2406	*/
2195		2407
		2408	int
2196	int absdir(int d) {	2409	absdir (int d)
2197	while(d<1) d+=8;	2410	{
2198	while(d>8) d-=8;	2411	while (d < 1)
		2412	d += 8;
		2413	while (d > 8)
		2414	d -= 8;
2199	return d;	2415	return d;
2200	}	2416	}
2201		2417
2202	/*	2418	/*
2203	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is	2419	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is
2204	* between two directions (which are expected to be absolute (see absdir())	2420	* between two directions (which are expected to be absolute (see absdir())
2205	*/	2421	*/
2206		2422
		2423	int
2207	int dirdiff(int dir1, int dir2) {	2424	dirdiff (int dir1, int dir2)
		2425	{
2208	int d;	2426	int
		2427	d;
		2428
2209	d = abs(dir1 - dir2);	2429	d = abs (dir1 - dir2);
2210	if(d>4)	2430	if (d > 4)
2211	d = 8 - d;	2431	d = 8 - d;
2212	return d;	2432	return d;
2213	}	2433	}
2214		2434
2215	/* peterm:	2435	/* peterm:
…		…
2220	* direction 4, 14, or 16 to get back to where we are.	2440	* 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	2441	* Moved from spell_util.c to object.c with the other related direction
2222	* functions.	2442	* functions.
2223	*/	2443	*/
2224		2444
		2445	int
2225	int reduction_dir[SIZEOFFREE][3] = {	2446	reduction_dir[SIZEOFFREE][3] = {
2226	{0,0,0}, /* 0 */	2447	{0, 0, 0}, /* 0 */
2227	{0,0,0}, /* 1 */	2448	{0, 0, 0}, /* 1 */
2228	{0,0,0}, /* 2 */	2449	{0, 0, 0}, /* 2 */
2229	{0,0,0}, /* 3 */	2450	{0, 0, 0}, /* 3 */
2230	{0,0,0}, /* 4 */	2451	{0, 0, 0}, /* 4 */
2231	{0,0,0}, /* 5 */	2452	{0, 0, 0}, /* 5 */
2232	{0,0,0}, /* 6 */	2453	{0, 0, 0}, /* 6 */
2233	{0,0,0}, /* 7 */	2454	{0, 0, 0}, /* 7 */
2234	{0,0,0}, /* 8 */	2455	{0, 0, 0}, /* 8 */
2235	{8,1,2}, /* 9 */	2456	{8, 1, 2}, /* 9 */
2236	{1,2,-1}, /* 10 */	2457	{1, 2, -1}, /* 10 */
2237	{2,10,12}, /* 11 */	2458	{2, 10, 12}, /* 11 */
2238	{2,3,-1}, /* 12 */	2459	{2, 3, -1}, /* 12 */
2239	{2,3,4}, /* 13 */	2460	{2, 3, 4}, /* 13 */
2240	{3,4,-1}, /* 14 */	2461	{3, 4, -1}, /* 14 */
2241	{4,14,16}, /* 15 */	2462	{4, 14, 16}, /* 15 */
2242	{5,4,-1}, /* 16 */	2463	{5, 4, -1}, /* 16 */
2243	{4,5,6}, /* 17 */	2464	{4, 5, 6}, /* 17 */
2244	{6,5,-1}, /* 18 */	2465	{6, 5, -1}, /* 18 */
2245	{6,20,18}, /* 19 */	2466	{6, 20, 18}, /* 19 */
2246	{7,6,-1}, /* 20 */	2467	{7, 6, -1}, /* 20 */
2247	{6,7,8}, /* 21 */	2468	{6, 7, 8}, /* 21 */
2248	{7,8,-1}, /* 22 */	2469	{7, 8, -1}, /* 22 */
2249	{8,22,24}, /* 23 */	2470	{8, 22, 24}, /* 23 */
2250	{8,1,-1}, /* 24 */	2471	{8, 1, -1}, /* 24 */
2251	{24,9,10}, /* 25 */	2472	{24, 9, 10}, /* 25 */
2252	{9,10,-1}, /* 26 */	2473	{9, 10, -1}, /* 26 */
2253	{10,11,-1}, /* 27 */	2474	{10, 11, -1}, /* 27 */
2254	{27,11,29}, /* 28 */	2475	{27, 11, 29}, /* 28 */
2255	{11,12,-1}, /* 29 */	2476	{11, 12, -1}, /* 29 */
2256	{12,13,-1}, /* 30 */	2477	{12, 13, -1}, /* 30 */
2257	{12,13,14}, /* 31 */	2478	{12, 13, 14}, /* 31 */
2258	{13,14,-1}, /* 32 */	2479	{13, 14, -1}, /* 32 */
2259	{14,15,-1}, /* 33 */	2480	{14, 15, -1}, /* 33 */
2260	{33,15,35}, /* 34 */	2481	{33, 15, 35}, /* 34 */
2261	{16,15,-1}, /* 35 */	2482	{16, 15, -1}, /* 35 */
2262	{17,16,-1}, /* 36 */	2483	{17, 16, -1}, /* 36 */
2263	{18,17,16}, /* 37 */	2484	{18, 17, 16}, /* 37 */
2264	{18,17,-1}, /* 38 */	2485	{18, 17, -1}, /* 38 */
2265	{18,19,-1}, /* 39 */	2486	{18, 19, -1}, /* 39 */
2266	{41,19,39}, /* 40 */	2487	{41, 19, 39}, /* 40 */
2267	{19,20,-1}, /* 41 */	2488	{19, 20, -1}, /* 41 */
2268	{20,21,-1}, /* 42 */	2489	{20, 21, -1}, /* 42 */
2269	{20,21,22}, /* 43 */	2490	{20, 21, 22}, /* 43 */
2270	{21,22,-1}, /* 44 */	2491	{21, 22, -1}, /* 44 */
2271	{23,22,-1}, /* 45 */	2492	{23, 22, -1}, /* 45 */
2272	{45,47,23}, /* 46 */	2493	{45, 47, 23}, /* 46 */
2273	{23,24,-1}, /* 47 */	2494	{23, 24, -1}, /* 47 */
2274	{24,9,-1}}; /* 48 */	2495	{24, 9, -1}
		2496	}; /* 48 */
2275		2497
2276	/* Recursive routine to step back and see if we can	2498	/* Recursive routine to step back and see if we can
2277	* find a path to that monster that we found. If not,	2499	* find a path to that monster that we found. If not,
2278	* we don't bother going toward it. Returns 1 if we	2500	* we don't bother going toward it. Returns 1 if we
2279	* can see a direct way to get it	2501	* can see a direct way to get it
2280	* Modified to be map tile aware -.MSW	2502	* Modified to be map tile aware -.MSW
2281	*/	2503	*/
2282
2283		2504
		2505
		2506	int
2284	int can_see_monsterP(mapstruct *m, int x, int y,int dir) {	2507	can_see_monsterP (maptile *m, int x, int y, int dir)
		2508	{
2285	sint16 dx, dy;	2509	sint16 dx, dy;
		2510	int
2286	int mflags;	2511	mflags;
2287		2512
		2513	if (dir < 0)
2288	if(dir<0) return 0; /* exit condition: invalid direction */	2514	return 0; /* exit condition: invalid direction */
2289		2515
2290	dx = x + freearr_x[dir];	2516	dx = x + freearr_x[dir];
2291	dy = y + freearr_y[dir];	2517	dy = y + freearr_y[dir];
2292		2518
2293	mflags = get_map_flags(m, &m, dx, dy, &dx, &dy);	2519	mflags = get_map_flags (m, &m, dx, dy, &dx, &dy);
2294		2520
2295	/* This functional arguably was incorrect before - it was	2521	/* This functional arguably was incorrect before - it was
2296	* checking for P_WALL - that was basically seeing if	2522	* checking for P_WALL - that was basically seeing if
2297	* we could move to the monster - this is being more	2523	* we could move to the monster - this is being more
2298	* literal on if we can see it. To know if we can actually	2524	* 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	2525	* move to the monster, we'd need the monster passed in or
2300	* at least its move type.	2526	* at least its move type.
2301	*/	2527	*/
2302	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW)) return 0;	2528	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW))
		2529	return 0;
2303		2530
2304	/* yes, can see. */	2531	/* yes, can see. */
2305	if(dir < 9) return 1;	2532	if (dir < 9)
		2533	return 1;
2306	return can_see_monsterP(m, x, y, reduction_dir[dir][0]) |	2534	return can_see_monsterP (m, x, y, reduction_dir[dir][0]) |
2307	can_see_monsterP(m,x,y, reduction_dir[dir][1]) |	2535	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	}	2536	}
2310		2537
2311		2538
2312		2539
2313	/*	2540	/*
2314	* can_pick(picker, item): finds out if an object is possible to be	2541	* 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	2542	* picked up by the picker. Returnes 1 if it can be
2316	* picked up, otherwise 0.	2543	* picked up, otherwise 0.
2317	*	2544	*
…		…
2319	* core dumps if they do.	2546	* core dumps if they do.
2320	*	2547	*
2321	* Add a check so we can't pick up invisible objects (0.93.8)	2548	* Add a check so we can't pick up invisible objects (0.93.8)
2322	*/	2549	*/
2323		2550
		2551	int
2324	int can_pick(const object *who, const object *item) {	2552	can_pick (const object *who, const object *item)
		2553	{
2325	return /*QUERY_FLAG(who,FLAG_WIZ)||*/	2554	return /*QUERY_FLAG(who,FLAG_WIZ)|| */
2326	(item->weight>0&&!QUERY_FLAG(item,FLAG_NO_PICK)&&	2555	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&
2327	!QUERY_FLAG(item,FLAG_ALIVE)&&!item->invisible &&	2556	!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	}	2557	}
2330		2558
2331		2559
2332	/*	2560	/*
2333	* create clone from object to another	2561	* create clone from object to another
2334	*/	2562	*/
		2563	object *
2335	object *object_create_clone (object *asrc) {	2564	object_create_clone (object *asrc)
		2565	{
		2566	object *
2336	object *dst = NULL,*tmp,*src,*part,*prev, *item;	2567	dst = NULL, *tmp, *src, *part, *prev, *item;
2337		2568
		2569	if (!asrc)
2338	if(!asrc) return NULL;	2570	return NULL;
2339	src = asrc;	2571	src = asrc;
2340	if(src->head)	2572	if (src->head)
2341	src = src->head;	2573	src = src->head;
2342		2574
2343	prev = NULL;	2575	prev = NULL;
2344	for(part = src; part; part = part->more) {	2576	for (part = src; part; part = part->more)
		2577	{
2345	tmp = get_object();	2578	tmp = get_object ();
2346	copy_object(part,tmp);	2579	copy_object (part, tmp);
2347	tmp->x -= src->x;	2580	tmp->x -= src->x;
2348	tmp->y -= src->y;	2581	tmp->y -= src->y;
2349	if(!part->head) {	2582	if (!part->head)
		2583	{
2350	dst = tmp;	2584	dst = tmp;
2351	tmp->head = NULL;	2585	tmp->head = NULL;
		2586	}
2352	} else {	2587	else
		2588	{
2353	tmp->head = dst;	2589	tmp->head = dst;
2354	}	2590	}
2355	tmp->more = NULL;	2591	tmp->more = NULL;
2356	if(prev)	2592	if (prev)
2357	prev->more = tmp;	2593	prev->more = tmp;
2358	prev = tmp;	2594	prev = tmp;
2359	}	2595	}
2360	/*** copy inventory ***/	2596
2361	for(item = src->inv; item; item = item->below) {	2597	for (item = src->inv; item; item = item->below)
2362	(void) insert_ob_in_ob(object_create_clone(item),dst);	2598	insert_ob_in_ob (object_create_clone (item), dst);
2363	}
2364		2599
2365	return dst;	2600	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	}	2601	}
2375		2602
2376	/* GROS - Creates an object using a string representing its content. */	2603	/* 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 */	2604	/* 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, */	2605	/* 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. */	2606	/* 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. */	2607	/* Remember not to use load_object_str in a time-critical situation. */
2381	/* Also remember that multiparts objects are not supported for now. */	2608	/* Also remember that multiparts objects are not supported for now. */
2382		2609
		2610	object *
2383	object* load_object_str(const char *obstr)	2611	load_object_str (const char *obstr)
2384	{	2612	{
2385	object *op;	2613	object *op;
2386	char filename[MAX_BUF];	2614	char filename[MAX_BUF];
		2615
2387	sprintf(filename,"%s/cfloadobstr2044",settings.tmpdir);	2616	sprintf (filename, "%s/cfloadobstr2044", settings.tmpdir);
2388		2617
2389	FILE *tempfile=fopen(filename,"w");	2618	FILE *tempfile = fopen (filename, "w");
		2619
2390	if (tempfile == NULL)	2620	if (tempfile == NULL)
2391	{	2621	{
2392	LOG(llevError,"Error - Unable to access load object temp file\n");	2622	LOG (llevError, "Error - Unable to access load object temp file\n");
2393	return NULL;	2623	return NULL;
2394	};	2624	}
		2625
2395	fprintf(tempfile,obstr);	2626	fprintf (tempfile, obstr);
2396	fclose(tempfile);	2627	fclose (tempfile);
2397		2628
2398	op=get_object();	2629	op = get_object ();
2399		2630
2400	object_thawer thawer (filename);	2631	object_thawer thawer (filename);
2401		2632
2402	if (thawer)	2633	if (thawer)
2403	load_object(thawer,op,0);	2634	load_object (thawer, op, 0);
2404		2635
2405	LOG(llevDebug," load str completed, object=%s\n", &op->name);	2636	LOG (llevDebug, " load str completed, object=%s\n", &op->name);
2406	CLEAR_FLAG(op,FLAG_REMOVED);	2637	CLEAR_FLAG (op, FLAG_REMOVED);
2407		2638
2408	return op;	2639	return op;
2409	}	2640	}
2410		2641
2411	/* This returns the first object in who's inventory that	2642	/* This returns the first object in who's inventory that
2412	* has the same type and subtype match.	2643	* has the same type and subtype match.
2413	* returns NULL if no match.	2644	* returns NULL if no match.
2414	*/	2645	*/
		2646	object *
2415	object *find_obj_by_type_subtype(const object *who, int type, int subtype)	2647	find_obj_by_type_subtype (const object *who, int type, int subtype)
2416	{	2648	{
2417	object *tmp;	2649	object *tmp;
2418		2650
2419	for (tmp=who->inv; tmp; tmp=tmp->below)	2651	for (tmp = who->inv; tmp; tmp = tmp->below)
2420	if (tmp->type == type && tmp->subtype == subtype) return tmp;	2652	if (tmp->type == type && tmp->subtype == subtype)
		2653	return tmp;
2421		2654
2422	return NULL;	2655	return NULL;
2423	}	2656	}
2424		2657
2425	/* If ob has a field named key, return the link from the list,	2658	/* If ob has a field named key, return the link from the list,
2426	* otherwise return NULL.	2659	* otherwise return NULL.
2427	*	2660	*
2428	* key must be a passed in shared string - otherwise, this won't	2661	* key must be a passed in shared string - otherwise, this won't
2429	* do the desired thing.	2662	* do the desired thing.
2430	*/	2663	*/
		2664	key_value *
2431	key_value * get_ob_key_link(const object * ob, const char * key) {	2665	get_ob_key_link (const object *ob, const char *key)
		2666	{
2432	key_value * link;	2667	key_value *link;
2433		2668
2434	for (link = ob->key_values; link != NULL; link = link->next) {	2669	for (link = ob->key_values; link != NULL; link = link->next)
2435	if (link->key == key) {	2670	if (link->key == key)
2436	return link;	2671	return link;
2437	}	2672
2438	}
2439
2440	return NULL;	2673	return NULL;
2441	}	2674	}
2442		2675
2443	/*	2676	/*
2444	* Returns the value of op has an extra_field for key, or NULL.	2677	* Returns the value of op has an extra_field for key, or NULL.
2445	*	2678	*
2446	* The argument doesn't need to be a shared string.	2679	* The argument doesn't need to be a shared string.
2447	*	2680	*
2448	* The returned string is shared.	2681	* The returned string is shared.
2449	*/	2682	*/
		2683	const char *
2450	const char * get_ob_key_value(const object * op, const char * const key) {	2684	get_ob_key_value (const object *op, const char *const key)
		2685	{
2451	key_value * link;	2686	key_value *link;
2452	const char * canonical_key;	2687	shstr_cmp canonical_key (key);
		2688
		2689	if (!canonical_key)
2453		2690	{
2454	canonical_key = shstr::find (key);
2455
2456	if (canonical_key == NULL) {
2457	/* 1. There being a field named key on any object	2691	/* 1. There being a field named key on any object
2458	* implies there'd be a shared string to find.	2692	* implies there'd be a shared string to find.
2459	* 2. Since there isn't, no object has this field.	2693	* 2. Since there isn't, no object has this field.
2460	* 3. Therefore, *this* object doesn't have this field.	2694	* 3. Therefore, *this* object doesn't have this field.
2461	*/	2695	*/
2462	return NULL;	2696	return 0;
2463	}	2697	}
2464		2698
2465	/* This is copied from get_ob_key_link() above -	2699	/* This is copied from get_ob_key_link() above -
2466	* only 4 lines, and saves the function call overhead.	2700	* only 4 lines, and saves the function call overhead.
2467	*/	2701	*/
2468	for (link = op->key_values; link != NULL; link = link->next) {	2702	for (link = op->key_values; link; link = link->next)
2469	if (link->key == canonical_key) {	2703	if (link->key == canonical_key)
2470	return link->value;	2704	return link->value;
2471	}	2705
2472	}	2706	return 0;
2473	return NULL;
2474	}	2707	}
2475		2708
2476		2709
2477	/*	2710	/*
2478	* Updates the canonical_key in op to value.	2711	* 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	2715	* Unless add_key is TRUE, it won't add fields, only change the value of existing
2483	* keys.	2716	* keys.
2484	*	2717	*
2485	* Returns TRUE on success.	2718	* Returns TRUE on success.
2486	*/	2719	*/
		2720	int
2487	int set_ob_key_value_s(object * op, const shstr &canonical_key, const char * value, int add_key) {	2721	set_ob_key_value_s (object *op, const shstr & canonical_key, const char *value, int add_key)
		2722	{
		2723	key_value *
2488	key_value * field = NULL, *last=NULL;	2724	field = NULL, *last = NULL;
2489		2725
2490	for (field=op->key_values; field != NULL; field=field->next) {	2726	for (field = op->key_values; field != NULL; field = field->next)
		2727	{
2491	if (field->key != canonical_key) {	2728	if (field->key != canonical_key)
		2729	{
2492	last = field;	2730	last = field;
2493	continue;	2731	continue;
2494	}	2732	}
2495		2733
2496	if (value)	2734	if (value)
2497	field->value = value;	2735	field->value = value;
2498	else {	2736	else
		2737	{
2499	/* Basically, if the archetype has this key set,	2738	/* Basically, if the archetype has this key set,
2500	* we need to store the null value so when we save	2739	* we need to store the null value so when we save
2501	* it, we save the empty value so that when we load,	2740	* it, we save the empty value so that when we load,
2502	* we get this value back again.	2741	* we get this value back again.
2503	*/	2742	*/
2504	if (get_ob_key_link (&op->arch->clone, canonical_key))	2743	if (get_ob_key_link (&op->arch->clone, canonical_key))
2505	field->value = 0;	2744	field->value = 0;
		2745	else
		2746	{
		2747	if (last)
		2748	last->next = field->next;
2506	else	2749	else
2507	{
2508	if (last) last->next = field->next;
2509	else op->key_values = field->next;	2750	op->key_values = field->next;
2510		2751
2511	delete field;	2752	delete field;
2512	}	2753	}
2513	}	2754	}
2514	return TRUE;	2755	return TRUE;
2515	}	2756	}
2516	/* IF we get here, key doesn't exist */	2757	/* IF we get here, key doesn't exist */
2517		2758
2518	/* No field, we'll have to add it. */	2759	/* No field, we'll have to add it. */
		2760
		2761	if (!add_key)
2519		2762	{
2520	if (!add_key) {
2521	return FALSE;	2763	return FALSE;
2522	}	2764	}
2523	/* There isn't any good reason to store a null	2765	/* There isn't any good reason to store a null
2524	* value in the key/value list. If the archetype has	2766	* value in the key/value list. If the archetype has
2525	* this key, then we should also have it, so shouldn't	2767	* this key, then we should also have it, so shouldn't
2526	* be here. If user wants to store empty strings,	2768	* be here. If user wants to store empty strings,
2527	* should pass in ""	2769	* should pass in ""
2528	*/	2770	*/
2529	if (value == NULL) return TRUE;	2771	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;	2772	return TRUE;
		2773
		2774	field = new key_value;
		2775
		2776	field->key = canonical_key;
		2777	field->value = value;
		2778	/* Usual prepend-addition. */
		2779	field->next = op->key_values;
		2780	op->key_values = field;
		2781
		2782	return TRUE;
2540	}	2783	}
2541		2784
2542	/*	2785	/*
2543	* Updates the key in op to value.	2786	* Updates the key in op to value.
2544	*	2787	*
…		…
2546	* and not add new ones.	2789	* and not add new ones.
2547	* In general, should be little reason FALSE is ever passed in for add_key	2790	* In general, should be little reason FALSE is ever passed in for add_key
2548	*	2791	*
2549	* Returns TRUE on success.	2792	* Returns TRUE on success.
2550	*/	2793	*/
		2794	int
2551	int set_ob_key_value(object * op, const char *key, const char * value, int add_key)	2795	set_ob_key_value (object *op, const char *key, const char *value, int add_key)
2552	{	2796	{
2553	shstr key_ (key);	2797	shstr key_ (key);
		2798
2554	return set_ob_key_value_s (op, key_, value, add_key);	2799	return set_ob_key_value_s (op, key_, value, add_key);
2555	}	2800	}
		2801
		2802	object::depth_iterator::depth_iterator (object *container)
		2803	: iterator_base (container)
		2804	{
		2805	while (item->inv)
		2806	item = item->inv;
		2807	}
		2808
		2809	void
		2810	object::depth_iterator::next ()
		2811	{
		2812	if (item->below)
		2813	{
		2814	item = item->below;
		2815
		2816	while (item->inv)
		2817	item = item->inv;
		2818	}
		2819	else
		2820	item = item->env;
		2821	}
		2822
		2823	// return a suitable string describing an objetc in enough detail to find it
		2824	const char *
		2825	object::debug_desc (char *info) const
		2826	{
		2827	char info2[256 * 3];
		2828	char *p = info;
		2829
		2830	p += snprintf (p, 256, "%d=\"%s%s%s\"",
		2831	count,
		2832	&name,
		2833	title ? " " : "",
		2834	title ? (const char *)title : "");
		2835
		2836	if (env)
		2837	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));
		2838
		2839	if (map)
		2840	p += snprintf (p, 256, "(on %s@%d+%d)", map->path, x, y);
		2841
		2842	return info;
		2843	}
		2844
		2845	const char *
		2846	object::debug_desc () const
		2847	{
		2848	static char info[256 * 3];
		2849	return debug_desc (info);
		2850	}
		2851

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