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Comparing deliantra/server/common/object.C (file contents):
Revision 1.16 by root, Mon Sep 4 16:46:32 2006 UTC vs.
Revision 1.47 by root, Thu Sep 14 22:33:59 2006 UTC

1	/*
2	* static char *rcsid_object_c =
3	* "$Id: object.C,v 1.16 2006/09/04 16:46:32 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	};
59		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	}
60		131
61	/* 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
62	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	{
63	key_value * wants_field;	136	key_value *wants_field;
64		137
65	/* 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
66	* 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
67	* different structure or at least keep the lists sorted...	140	* different structure or at least keep the lists sorted...
68	*/	141	*/
69		142
70	/* For each field in wants, */	143	/* For each field in wants, */
71	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	{
72	key_value * has_field;	146	key_value *has_field;
73		147
74	/* Look for a field in has with the same key. */	148	/* Look for a field in has with the same key. */
75	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)
76		152	{
77	if (has_field == NULL) {
78	/* No field with that name. */	153	/* No field with that name. */
79	return FALSE;	154	return FALSE;
80	}
81		155	}
		156
82	/* Found the matching field. */	157	/* Found the matching field. */
83	if (has_field->value != wants_field->value) {	158	if (has_field->value != wants_field->value)
		159	{
84	/* 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. */
85	return FALSE;	161	return FALSE;
86	}	162	}
87		163
88	/* 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. */
89	}
90		165	}
		166
91	/* 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. */
92	return TRUE;	168	return TRUE;
93	}	169	}
94		170
95	/* 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
96	static int compare_ob_value_lists(const object * ob1, const object * ob2) {	173	compare_ob_value_lists (const object *ob1, const object *ob2)
		174	{
97	/* 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,
98	* so we need to run the comparison *twice*. :(	176	* so we need to run the comparison *twice*. :(
99	*/	177	*/
100	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);
101	}	179	}
102		180
103	/* 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
104	* they can be merged together.	182	* they can be merged together.
105	*	183	*
…		…
111	*	189	*
112	* Improvements made with merge: Better checking on potion, and also	190	* Improvements made with merge: Better checking on potion, and also
113	* check weight	191	* check weight
114	*/	192	*/
115		193
116	bool
117	object::can_merge (object *ob1, object *ob2)	194	bool object::can_merge (object *ob1, object *ob2)
118	{	195	{
119	/* A couple quicksanity checks */	196	/* A couple quicksanity checks */
120	if ((ob1 == ob2) || (ob1->type != ob2->type))	197	if ((ob1 == ob2) || (ob1->type != ob2->type))
121	return 0;	198	return 0;
122		199
…		…
170	(ob1->subtype != ob2->subtype) ||	247	(ob1->subtype != ob2->subtype) ||
171	(ob1->move_type != ob2->move_type) ||	248	(ob1->move_type != ob2->move_type) ||
172	(ob1->move_block != ob2->move_block) ||	249	(ob1->move_block != ob2->move_block) ||
173	(ob1->move_allow != ob2->move_allow) ||	250	(ob1->move_allow != ob2->move_allow) ||
174	(ob1->move_on != ob2->move_on) ||	251	(ob1->move_on != ob2->move_on) ||
175	(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))
176	(ob1->move_slow != ob2->move_slow) ||
177	(ob1->move_slow_penalty != ob2->move_slow_penalty))
178	return 0;	253	return 0;
179		254
180	/* This is really a spellbook check - really, we should	255	/* This is really a spellbook check - really, we should
181	* check all objects in the inventory.	256	* check all objects in the inventory.
182	*/	257	*/
183	if (ob1->inv || ob2->inv)	258	if (ob1->inv || ob2->inv)
184	{	259	{
185	/* 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 */
186	if ((ob1->inv && !ob2->inv) || (ob2->inv && !ob1->inv))	261	if ((ob1->inv && !ob2->inv) || (ob2->inv && !ob1->inv))
187	return 0;	262	return 0;
188		263
189	/* Now check to see if the two inventory objects could merge */	264	/* Now check to see if the two inventory objects could merge */
190	if (!CAN_MERGE (ob1->inv, ob2->inv))	265	if (!CAN_MERGE (ob1->inv, ob2->inv))
191	return 0;	266	return 0;
192		267
193	/* 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
194	* if it is valid.	269	* if it is valid.
195	*/	270	*/
196	}	271	}
…		…
204		279
205	/* 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
206	* 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
207	* check?	282	* check?
208	*/	283	*/
209	if (!QUERY_FLAG (ob1, FLAG_ANIMATE)	284	if (!QUERY_FLAG (ob1, FLAG_ANIMATE) && FABS ((ob1)->speed) > MIN_ACTIVE_SPEED)
210	&& FABS ((ob1)->speed) > MIN_ACTIVE_SPEED)
211	return 0;	285	return 0;
212		286
213	switch (ob1->type)	287	switch (ob1->type)
214	{	288	{
215	case SCROLL:	289	case SCROLL:
216	if (ob1->level != ob2->level)	290	if (ob1->level != ob2->level)
217	return 0;	291	return 0;
218	break;	292	break;
219	}	293	}
220		294
221	if (ob1->key_values != NULL || ob2->key_values != NULL)	295	if (ob1->key_values != NULL || ob2->key_values != NULL)
222	{	296	{
223	/* At least one of these has key_values. */	297	/* At least one of these has key_values. */
224	if ((ob1->key_values == NULL) != (ob2->key_values == NULL))	298	if ((ob1->key_values == NULL) != (ob2->key_values == NULL))
225	/* One has fields, but the other one doesn't. */	299	/* One has fields, but the other one doesn't. */
226	return 0;	300	return 0;
227	else if (!compare_ob_value_lists (ob1, ob2))	301	else if (!compare_ob_value_lists (ob1, ob2))
228	return 0;	302	return 0;
229	}	303	}
230		304
231	//TODO: generate an event or call into perl for additional checks	305	//TODO: generate an event or call into perl for additional checks
232	if (ob1->self || ob2->self)	306	if (ob1->self || ob2->self)
233	{	307	{
234	ob1->optimise ();	308	ob1->optimise ();
235	ob2->optimise ();	309	ob2->optimise ();
236		310
237	if (ob1->self || ob2->self)	311	if (ob1->self || ob2->self)
238	return 0;	312	return 0;
239	}	313	}
240		314
241	/* Everything passes, must be OK. */	315	/* Everything passes, must be OK. */
242	return 1;	316	return 1;
243	}	317	}
		318
244	/*	319	/*
245	* sum_weight() is a recursive function which calculates the weight	320	* sum_weight() is a recursive function which calculates the weight
246	* 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
247	* containers are carrying, and sums it up.	322	* containers are carrying, and sums it up.
248	*/	323	*/
249	signed long sum_weight(object *op) {	324	long
		325	sum_weight (object *op)
		326	{
250	signed long sum;	327	long sum;
251	object *inv;	328	object *inv;
		329
252	for(sum = 0, inv = op->inv; inv != NULL; inv = inv->below) {	330	for (sum = 0, inv = op->inv; inv != NULL; inv = inv->below)
		331	{
253	if (inv->inv)	332	if (inv->inv)
254	sum_weight(inv);	333	sum_weight (inv);
255	sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1);	334	sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1);
256	}	335	}
		336
257	if (op->type == CONTAINER && op->stats.Str)	337	if (op->type == CONTAINER && op->stats.Str)
258	sum = (sum * (100 - op->stats.Str))/100;	338	sum = (sum * (100 - op->stats.Str)) / 100;
		339
259	if(op->carrying != sum)	340	if (op->carrying != sum)
260	op->carrying = sum;	341	op->carrying = sum;
		342
261	return sum;	343	return sum;
262	}	344	}
263		345
264	/**	346	/**
265	* Return the outermost environment object for a given object.	347	* Return the outermost environment object for a given object.
266	*/	348	*/
267		349
		350	object *
268	object *object_get_env_recursive (object *op) {	351	object_get_env_recursive (object *op)
		352	{
269	while (op->env != NULL)	353	while (op->env != NULL)
270	op = op->env;	354	op = op->env;
271	return op;	355	return op;
272	}	356	}
273		357
274	/*	358	/*
275	* 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
276	* 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
277	* or find a player.	361	* or find a player.
278	*/	362	*/
279		363
		364	object *
280	object *is_player_inv (object *op) {	365	is_player_inv (object *op)
		366	{
281	for (;op!=NULL&&op->type!=PLAYER; op=op->env)	367	for (; op != NULL && op->type != PLAYER; op = op->env)
282	if (op->env==op)	368	if (op->env == op)
283	op->env = NULL;	369	op->env = NULL;
284	return op;	370	return op;
285	}	371	}
286		372
287	/*	373	/*
288	* Used by: Crossedit: dump. Server DM commands: dumpbelow, dump.	374	* Used by: Crossedit: dump. Server DM commands: dumpbelow, dump.
289	* Some error messages.	375	* Some error messages.
290	* 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.
291	*/	377	*/
292		378
		379	void
293	void dump_object2(object *op) {	380	dump_object2 (object *op)
		381	{
294	errmsg[0] = 0;	382	errmsg[0] = 0;
295	return;	383	return;
296	//TODO//D#d#	384	//TODO//D#d#
297	#if 0	385	#if 0
298	char *cp;	386	char *cp;
		387
299	/* object *tmp;*/	388	/* object *tmp;*/
300		389
301	if(op->arch!=NULL) {	390	if (op->arch != NULL)
		391	{
302	strcat(errmsg,"arch ");	392	strcat (errmsg, "arch ");
303	strcat(errmsg,op->arch->name?op->arch->name:"(null)");	393	strcat (errmsg, op->arch->name ? op->arch->name : "(null)");
304	strcat(errmsg,"\n");	394	strcat (errmsg, "\n");
305	if((cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)	395	if ((cp = get_ob_diff (op, &empty_archetype->clone)) != NULL)
306	strcat(errmsg,cp);	396	strcat (errmsg, cp);
307	#if 0	397	# if 0
308	/* Don't dump player diffs - they are too long, mostly meaningless, and	398	/* Don't dump player diffs - they are too long, mostly meaningless, and
309	* will overflow the buffer.	399	* will overflow the buffer.
310	* Changed so that we don't dump inventory either. This may	400	* Changed so that we don't dump inventory either. This may
311	* also overflow the buffer.	401	* also overflow the buffer.
312	*/	402	*/
313	if(op->type!=PLAYER && (cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)	403	if (op->type != PLAYER && (cp = get_ob_diff (op, &empty_archetype->clone)) != NULL)
314	strcat(errmsg,cp);	404	strcat (errmsg, cp);
315	for (tmp=op->inv; tmp; tmp=tmp->below)	405	for (tmp = op->inv; tmp; tmp = tmp->below)
316	dump_object2(tmp);	406	dump_object2 (tmp);
		407	# endif
		408	strcat (errmsg, "end\n");
		409	}
		410	else
		411	{
		412	strcat (errmsg, "Object ");
		413	if (op->name == NULL)
		414	strcat (errmsg, "(null)");
		415	else
		416	strcat (errmsg, op->name);
		417	strcat (errmsg, "\n");
		418	# if 0
		419	if ((cp = get_ob_diff (op, &empty_archetype->clone)) != NULL)
		420	strcat (errmsg, cp);
		421	for (tmp = op->inv; tmp; tmp = tmp->below)
		422	dump_object2 (tmp);
		423	# endif
		424	strcat (errmsg, "end\n");
		425	}
317	#endif	426	#endif
318	strcat(errmsg,"end\n");
319	} else {
320	strcat(errmsg,"Object ");
321	if (op->name==NULL) strcat(errmsg, "(null)");
322	else strcat(errmsg,op->name);
323	strcat(errmsg,"\n");
324	#if 0
325	if((cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)
326	strcat(errmsg,cp);
327	for (tmp=op->inv; tmp; tmp=tmp->below)
328	dump_object2(tmp);
329	#endif
330	strcat(errmsg,"end\n");
331	}
332	#endif
333	}	427	}
334		428
335	/*	429	/*
336	* Dumps an object. Returns output in the static global errmsg array.	430	* Dumps an object. Returns output in the static global errmsg array.
337	*/	431	*/
338		432
		433	void
339	void dump_object(object *op) {	434	dump_object (object *op)
		435	{
340	if(op==NULL) {	436	if (op == NULL)
		437	{
341	strcpy(errmsg,"[NULL pointer]");	438	strcpy (errmsg, "[NULL pointer]");
342	return;	439	return;
343	}	440	}
344	errmsg[0]='\0';	441	errmsg[0] = '\0';
345	dump_object2(op);	442	dump_object2 (op);
346	}	443	}
347		444
		445	void
348	void dump_all_objects(void) {	446	dump_all_objects (void)
		447	{
349	object *op;	448	object *op;
		449
350	for(op=objects;op!=NULL;op=op->next) {	450	for (op = object::first; op != NULL; op = op->next)
		451	{
351	dump_object(op);	452	dump_object (op);
352	fprintf(logfile, "Object %d\n:%s\n", op->count, errmsg);	453	fprintf (logfile, "Object %d\n:%s\n", op->count, errmsg);
353	}	454	}
354	}	455	}
355		456
356	/*	457	/*
357	* get_nearest_part(multi-object, object 2) returns the part of the	458	* get_nearest_part(multi-object, object 2) returns the part of the
358	* multi-object 1 which is closest to the second object.	459	* multi-object 1 which is closest to the second object.
359	* If it's not a multi-object, it is returned.	460	* If it's not a multi-object, it is returned.
360	*/	461	*/
361		462
		463	object *
362	object *get_nearest_part(object *op, const object *pl) {	464	get_nearest_part (object *op, const object *pl)
		465	{
363	object *tmp,*closest;	466	object *tmp, *closest;
364	int last_dist,i;	467	int last_dist, i;
		468
365	if(op->more==NULL)	469	if (op->more == NULL)
366	return op;	470	return op;
367	for(last_dist=distance(op,pl),closest=op,tmp=op->more;tmp!=NULL;tmp=tmp->more)	471	for (last_dist = distance (op, pl), closest = op, tmp = op->more; tmp != NULL; tmp = tmp->more)
368	if((i=distance(tmp,pl))<last_dist)	472	if ((i = distance (tmp, pl)) < last_dist)
369	closest=tmp,last_dist=i;	473	closest = tmp, last_dist = i;
370	return closest;	474	return closest;
371	}	475	}
372		476
373	/*	477	/*
374	* Returns the object which has the count-variable equal to the argument.	478	* Returns the object which has the count-variable equal to the argument.
375	*/	479	*/
376		480
		481	object *
377	object *find_object(tag_t i) {	482	find_object (tag_t i)
		483	{
378	object *op;	484	object *op;
		485
379	for(op=objects;op!=NULL;op=op->next)	486	for (op = object::first; op != NULL; op = op->next)
380	if(op->count==i)	487	if (op->count == i)
381	break;	488	break;
382	return op;	489	return op;
383	}	490	}
384		491
385	/*	492	/*
386	* Returns the first object which has a name equal to the argument.	493	* Returns the first object which has a name equal to the argument.
387	* Used only by the patch command, but not all that useful.	494	* Used only by the patch command, but not all that useful.
388	* Enables features like "patch <name-of-other-player> food 999"	495	* Enables features like "patch <name-of-other-player> food 999"
389	*/	496	*/
390		497
		498	object *
391	object *find_object_name(const char *str) {	499	find_object_name (const char *str)
392	const char *name = shstr::find (str);	500	{
		501	shstr_cmp str_ (str);
393	object *op;	502	object *op;
		503
394	for(op=objects;op!=NULL;op=op->next)	504	for (op = object::first; op != NULL; op = op->next)
395	if(&op->name == name)	505	if (op->name == str_)
396	break;	506	break;
397		507
398	return op;	508	return op;
399	}	509	}
400		510
		511	void
401	void free_all_object_data ()	512	free_all_object_data ()
402	{	513	{
403	LOG (llevDebug, "%d allocated objects\n", nrofallocobjects);	514	LOG (llevDebug, "%d allocated objects\n", nrofallocobjects);
404	}
405
406	/*
407	* Returns the object which this object marks as being the owner.
408	* A id-scheme is used to avoid pointing to objects which have been
409	* freed and are now reused. If this is detected, the owner is
410	* set to NULL, and NULL is returned.
411	* Changed 2004-02-12 - if the player is setting at the play again
412	* prompt, he is removed, and we don't want to treat him as an owner of
413	* anything, so check removed flag. I don't expect that this should break
414	* anything - once an object is removed, it is basically dead anyways.
415	*/
416
417	object *get_owner(object *op) {
418	if(op->owner==NULL)
419	return NULL;
420
421	if (!QUERY_FLAG(op->owner,FLAG_FREED) && !QUERY_FLAG(op->owner, FLAG_REMOVED) &&
422	op->owner->count==op->ownercount)
423	return op->owner;
424
425	op->owner=NULL;
426	op->ownercount=0;
427	return NULL;
428	}
429
430	void clear_owner(object *op)
431	{
432	if (!op) return;
433
434	if (op->owner && op->ownercount == op->owner->count)
435	op->owner->refcount--;
436
437	op->owner = NULL;
438	op->ownercount = 0;
439	}	515	}
440		516
441	/*	517	/*
442	* Sets the owner and sets the skill and exp pointers to owner's current	518	* Sets the owner and sets the skill and exp pointers to owner's current
443	* skill and experience objects.	519	* skill and experience objects.
444	*/	520	*/
445	void set_owner (object *op, object *owner)	521	void
		522	object::set_owner (object *owner)
446	{	523	{
447	if(owner==NULL||op==NULL)	524	if (!owner)
448	return;	525	return;
449		526
450	/* next line added to allow objects which own objects */	527	/* next line added to allow objects which own objects */
451	/* Add a check for ownercounts in here, as I got into an endless loop	528	/* Add a check for ownercounts in here, as I got into an endless loop
452	* with the fireball owning a poison cloud which then owned the	529	* with the fireball owning a poison cloud which then owned the
453	* fireball. I believe that was caused by one of the objects getting	530	* fireball. I believe that was caused by one of the objects getting
454	* freed and then another object replacing it. Since the ownercounts	531	* freed and then another object replacing it. Since the ownercounts
455	* didn't match, this check is valid and I believe that cause is valid.	532	* didn't match, this check is valid and I believe that cause is valid.
456	*/	533	*/
457	while (owner->owner && owner!=owner->owner &&	534	while (owner->owner)
458	owner->ownercount==owner->owner->count) owner=owner->owner;	535	owner = owner->owner;
459		536
460	/* IF the owner still has an owner, we did not resolve to a final owner.
461	* so lets not add to that.
462	*/
463	if (owner->owner) return;
464
465	op->owner=owner;	537	this->owner = owner;
466
467	op->ownercount=owner->count;
468	owner->refcount++;
469
470	}
471
472	/* Set the owner to clone's current owner and set the skill and experience
473	* objects to clone's objects (typically those objects that where the owner's
474	* current skill and experience objects at the time when clone's owner was
475	* set - not the owner's current skill and experience objects).
476	*
477	* Use this function if player created an object (e.g. fire bullet, swarm
478	* spell), and this object creates further objects whose kills should be
479	* accounted for the player's original skill, even if player has changed
480	* skills meanwhile.
481	*/
482	void copy_owner (object *op, object *clone)
483	{
484	object *owner = get_owner (clone);
485	if (owner == NULL) {
486	/* players don't have owners - they own themselves. Update
487	* as appropriate.
488	*/
489	if (clone->type == PLAYER) owner=clone;
490	else return;
491	}
492	set_owner(op, owner);
493
494	}	538	}
495		539
496	/* Zero the key_values on op, decrementing the shared-string	540	/* Zero the key_values on op, decrementing the shared-string
497	* refcounts and freeing the links.	541	* refcounts and freeing the links.
498	*/	542	*/
		543	static void
499	static void free_key_values(object * op)	544	free_key_values (object *op)
500	{	545	{
501	for (key_value *i = op->key_values; i != 0; )	546	for (key_value *i = op->key_values; i != 0;)
502	{	547	{
503	key_value *next = i->next;	548	key_value *next = i->next;
504	delete i;	549	delete i;
		550
505	i = next;	551	i = next;
506	}	552	}
507		553
508	op->key_values = 0;	554	op->key_values = 0;
509	}	555	}
510		556
511	void object::clear ()	557	void object::clear ()
512	{	558	{
513	attachable_base::clear ();	559	attachable_base::clear ();
514		560
515	free_key_values (this);	561	free_key_values (this);
516		562
517	name = 0;	563	owner = 0;
		564	name = 0;
518	name_pl = 0;	565	name_pl = 0;
519	title = 0;	566	title = 0;
520	race = 0;	567	race = 0;
521	slaying = 0;	568	slaying = 0;
522	skill = 0;	569	skill = 0;
523	msg = 0;	570	msg = 0;
524	lore = 0;	571	lore = 0;
525	custom_name = 0;	572	custom_name = 0;
526	materialname = 0;	573	materialname = 0;
		574	contr = 0;
		575	below = 0;
		576	above = 0;
		577	inv = 0;
		578	container = 0;
		579	env = 0;
		580	more = 0;
		581	head = 0;
		582	map = 0;
		583	active_next = 0;
		584	active_prev = 0;
527		585
528	memset (static_cast<object_pod *>(this), 0, sizeof (object_pod));	586	memset (static_cast<object_pod *>(this), 0, sizeof (object_pod));
529		587
530	SET_FLAG (this, FLAG_REMOVED);	588	SET_FLAG (this, FLAG_REMOVED);
		589
		590	/* What is not cleared is next, prev, and count */
		591
		592	expmul = 1.0;
		593	face = blank_face;
		594
		595	if (settings.casting_time)
		596	casting_time = -1;
531	}	597	}
532		598
533	void object::clone (object *destination)	599	void object::clone (object *destination)
534	{	600	{
535	*(object_copy *)destination = *(object_copy *)this;	601	*(object_copy *)destination = *this;
536	*(object_pod *)destination = *(object_pod *)this;	602	*(object_pod *)destination = *this;
537		603
538	if (self || cb)	604	if (self || cb)
539	INVOKE_OBJECT (CLONE, this, ARG_OBJECT (destination));	605	INVOKE_OBJECT (CLONE, this, ARG_OBJECT (destination));
540	}
541
542	/*
543	* clear_object() frees everything allocated by an object, and also
544	* clears all variables and flags to default settings.
545	*/
546
547	void clear_object (object *op)
548	{
549	op->clear ();
550
551	op->contr = NULL;
552	op->below = NULL;
553	op->above = NULL;
554	op->inv = NULL;
555	op->container=NULL;
556	op->env=NULL;
557	op->more=NULL;
558	op->head=NULL;
559	op->map=NULL;
560	op->refcount=0;
561	op->active_next = NULL;
562	op->active_prev = NULL;
563	/* What is not cleared is next, prev, and count */
564
565	op->expmul = 1.0;
566	op->face = blank_face;
567	op->attacked_by_count = -1;
568
569	if (settings.casting_time)
570	op->casting_time = -1;
571	}	606	}
572		607
573	/*	608	/*
574	* copy object first frees everything allocated by the second object,	609	* copy object first frees everything allocated by the second object,
575	* and then copies the contends of the first object into the second	610	* and then copies the contends of the first object into the second
576	* object, allocating what needs to be allocated. Basically, any	611	* object, allocating what needs to be allocated. Basically, any
577	* data that is malloc'd needs to be re-malloc/copied. Otherwise,	612	* data that is malloc'd needs to be re-malloc/copied. Otherwise,
578	* if the first object is freed, the pointers in the new object	613	* if the first object is freed, the pointers in the new object
579	* will point at garbage.	614	* will point at garbage.
580	*/	615	*/
581		616	void
582	void copy_object (object *op2, object *op)	617	copy_object (object *op2, object *op)
583	{	618	{
584	bool is_freed = QUERY_FLAG (op, FLAG_FREED);	619	bool is_freed = QUERY_FLAG (op, FLAG_FREED);
585	bool is_removed = QUERY_FLAG (op, FLAG_REMOVED);	620	bool is_removed = QUERY_FLAG (op, FLAG_REMOVED);
586		621
587	op2->clone (op);	622	op2->clone (op);
588		623
		624	if (is_freed)
589	if (is_freed) SET_FLAG (op, FLAG_FREED);	625	SET_FLAG (op, FLAG_FREED);
		626	if (is_removed)
590	if (is_removed) SET_FLAG (op, FLAG_REMOVED);	627	SET_FLAG (op, FLAG_REMOVED);
591		628
592	if (op2->speed < 0)	629	if (op2->speed < 0)
593	op->speed_left = op2->speed_left - RANDOM() % 200 / 100.0;	630	op->speed_left = op2->speed_left - RANDOM () % 200 / 100.0;
594		631
595	/* Copy over key_values, if any. */	632	/* Copy over key_values, if any. */
596	if (op2->key_values != NULL)	633	if (op2->key_values)
597	{	634	{
598	key_value *tail = NULL;	635	key_value *tail = 0;
599	key_value *i;	636	key_value *i;
600		637
601	op->key_values = NULL;	638	op->key_values = 0;
602		639
603	for (i = op2->key_values; i != NULL; i = i->next)	640	for (i = op2->key_values; i; i = i->next)
604	{	641	{
605	key_value *new_link = new key_value;	642	key_value *new_link = new key_value;
606		643
607	new_link->next = NULL;	644	new_link->next = 0;
608	new_link->key = i->key;	645	new_link->key = i->key;
609	new_link->value = i->value;	646	new_link->value = i->value;
610		647
611	/* Try and be clever here, too. */	648	/* Try and be clever here, too. */
612	if (op->key_values == NULL)	649	if (!op->key_values)
613	{	650	{
614	op->key_values = new_link;	651	op->key_values = new_link;
615	tail = new_link;	652	tail = new_link;
616	}	653	}
617	else	654	else
…		…
624		661
625	update_ob_speed (op);	662	update_ob_speed (op);
626	}	663	}
627		664
628	/*	665	/*
629	* get_object() grabs an object from the list of unused objects, makes
630	* sure it is initialised, and returns it.
631	* If there are no free objects, expand_objects() is called to get more.
632	*/
633
634	object *get_object ()
635	{
636	object *op = new object;
637
638	op->count = ++ob_count;
639
640	op->active_next = 0;
641	op->active_prev = 0;
642
643	op->next = objects;
644	op->prev = 0;
645
646	if (objects)
647	objects->prev = op;
648
649	objects = op;
650
651	SET_FLAG (op, FLAG_REMOVED);
652
653	op->expmul = 1.0;
654	op->face = blank_face;
655	op->attacked_by_count = -1;
656
657	return op;
658	}
659
660	/*
661	* If an object with the IS_TURNABLE() flag needs to be turned due	666	* If an object with the IS_TURNABLE() flag needs to be turned due
662	* to the closest player being on the other side, this function can	667	* to the closest player being on the other side, this function can
663	* be called to update the face variable, _and_ how it looks on the map.	668	* be called to update the face variable, _and_ how it looks on the map.
664	*/	669	*/
665		670
		671	void
666	void update_turn_face(object *op) {	672	update_turn_face (object *op)
		673	{
667	if(!QUERY_FLAG(op,FLAG_IS_TURNABLE)||op->arch==NULL)	674	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || op->arch == NULL)
668	return;	675	return;
669	SET_ANIMATION(op, op->direction);	676	SET_ANIMATION (op, op->direction);
670	update_object(op,UP_OBJ_FACE);	677	update_object (op, UP_OBJ_FACE);
671	}	678	}
672		679
673	/*	680	/*
674	* Updates the speed of an object. If the speed changes from 0 to another	681	* Updates the speed of an object. If the speed changes from 0 to another
675	* value, or vice versa, then add/remove the object from the active list.	682	* value, or vice versa, then add/remove the object from the active list.
676	* This function needs to be called whenever the speed of an object changes.	683	* This function needs to be called whenever the speed of an object changes.
677	*/	684	*/
678		685	void
679	void update_ob_speed(object *op) {	686	update_ob_speed (object *op)
		687	{
680	extern int arch_init;	688	extern int arch_init;
681		689
682	/* No reason putting the archetypes objects on the speed list,	690	/* No reason putting the archetypes objects on the speed list,
683	* since they never really need to be updated.	691	* since they never really need to be updated.
684	*/	692	*/
685		693
686	if (QUERY_FLAG(op, FLAG_FREED) && op->speed) {	694	if (QUERY_FLAG (op, FLAG_FREED) && op->speed)
		695	{
687	LOG(llevError,"Object %s is freed but has speed.\n", &op->name);	696	LOG (llevError, "Object %s is freed but has speed.\n", &op->name);
688	#ifdef MANY_CORES	697	#ifdef MANY_CORES
689	abort();	698	abort ();
690	#else	699	#else
691	op->speed = 0;	700	op->speed = 0;
692	#endif	701	#endif
693	}	702	}
		703
694	if (arch_init) {	704	if (arch_init)
		705	return;
		706
		707	if (FABS (op->speed) > MIN_ACTIVE_SPEED)
		708	{
		709	/* If already on active list, don't do anything */
		710	if (op->active_next || op->active_prev || op == active_objects)
695	return;	711	return;
696	}
697	if (FABS(op->speed)>MIN_ACTIVE_SPEED) {
698	/* If already on active list, don't do anything */
699	if (op->active_next || op->active_prev || op==active_objects)
700	return;
701		712
702	/* process_events() expects us to insert the object at the beginning	713	/* process_events() expects us to insert the object at the beginning
703	* of the list. */	714	* of the list. */
704	op->active_next = active_objects;	715	op->active_next = active_objects;
		716
705	if (op->active_next!=NULL)	717	if (op->active_next != NULL)
706	op->active_next->active_prev = op;	718	op->active_next->active_prev = op;
		719
707	active_objects = op;	720	active_objects = op;
		721	}
		722	else
708	}	723	{
709	else {
710	/* If not on the active list, nothing needs to be done */	724	/* If not on the active list, nothing needs to be done */
711	if (!op->active_next && !op->active_prev && op!=active_objects)	725	if (!op->active_next && !op->active_prev && op != active_objects)
712	return;	726	return;
713		727
714	if (op->active_prev==NULL) {	728	if (op->active_prev == NULL)
		729	{
715	active_objects = op->active_next;	730	active_objects = op->active_next;
		731
716	if (op->active_next!=NULL)	732	if (op->active_next != NULL)
717	op->active_next->active_prev = NULL;	733	op->active_next->active_prev = NULL;
		734	}
		735	else
718	}	736	{
719	else {
720	op->active_prev->active_next = op->active_next;	737	op->active_prev->active_next = op->active_next;
		738
721	if (op->active_next)	739	if (op->active_next)
722	op->active_next->active_prev = op->active_prev;	740	op->active_next->active_prev = op->active_prev;
723	}	741	}
		742
724	op->active_next = NULL;	743	op->active_next = NULL;
725	op->active_prev = NULL;	744	op->active_prev = NULL;
726	}	745	}
727	}	746	}
728		747
729	/* This function removes object 'op' from the list of active	748	/* This function removes object 'op' from the list of active
730	* objects.	749	* objects.
…		…
732	* reference maps where you don't want an object that isn't	751	* reference maps where you don't want an object that isn't
733	* in play chewing up cpu time getting processed.	752	* in play chewing up cpu time getting processed.
734	* The reverse of this is to call update_ob_speed, which	753	* The reverse of this is to call update_ob_speed, which
735	* will do the right thing based on the speed of the object.	754	* will do the right thing based on the speed of the object.
736	*/	755	*/
		756	void
737	void remove_from_active_list(object *op)	757	remove_from_active_list (object *op)
738	{	758	{
739	/* If not on the active list, nothing needs to be done */	759	/* If not on the active list, nothing needs to be done */
740	if (!op->active_next && !op->active_prev && op!=active_objects)	760	if (!op->active_next && !op->active_prev && op != active_objects)
741	return;	761	return;
742		762
743	if (op->active_prev==NULL) {	763	if (op->active_prev == NULL)
		764	{
744	active_objects = op->active_next;	765	active_objects = op->active_next;
745	if (op->active_next!=NULL)	766	if (op->active_next != NULL)
746	op->active_next->active_prev = NULL;	767	op->active_next->active_prev = NULL;
		768	}
		769	else
747	}	770	{
748	else {
749	op->active_prev->active_next = op->active_next;	771	op->active_prev->active_next = op->active_next;
750	if (op->active_next)	772	if (op->active_next)
751	op->active_next->active_prev = op->active_prev;	773	op->active_next->active_prev = op->active_prev;
752	}	774	}
753	op->active_next = NULL;	775	op->active_next = NULL;
754	op->active_prev = NULL;	776	op->active_prev = NULL;
755	}	777	}
756		778
757	/*	779	/*
758	* update_object() updates the array which represents the map.	780	* update_object() updates the array which represents the map.
759	* It takes into account invisible objects (and represent squares covered	781	* It takes into account invisible objects (and represent squares covered
…		…
774	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update	796	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update
775	* as that is easier than trying to look at what may have changed.	797	* as that is easier than trying to look at what may have changed.
776	* UP_OBJ_FACE: only the objects face has changed.	798	* UP_OBJ_FACE: only the objects face has changed.
777	*/	799	*/
778		800
		801	void
779	void update_object(object *op, int action) {	802	update_object (object *op, int action)
		803	{
780	int update_now=0, flags;	804	int update_now = 0, flags;
781	MoveType move_on, move_off, move_block, move_slow;	805	MoveType move_on, move_off, move_block, move_slow;
782		806
783	if (op == NULL) {	807	if (op == NULL)
		808	{
784	/* this should never happen */	809	/* this should never happen */
785	LOG(llevDebug,"update_object() called for NULL object.\n");	810	LOG (llevDebug, "update_object() called for NULL object.\n");
786	return;	811	return;
787	}
788		812	}
		813
789	if(op->env!=NULL) {	814	if (op->env != NULL)
		815	{
790	/* Animation is currently handled by client, so nothing	816	/* Animation is currently handled by client, so nothing
791	* to do in this case.	817	* to do in this case.
792	*/	818	*/
793	return;	819	return;
794	}	820	}
795		821
796	/* If the map is saving, don't do anything as everything is	822	/* If the map is saving, don't do anything as everything is
797	* going to get freed anyways.	823	* going to get freed anyways.
798	*/	824	*/
799	if (!op->map || op->map->in_memory == MAP_SAVING) return;	825	if (!op->map || op->map->in_memory == MAP_SAVING)
800		826	return;
		827
801	/* make sure the object is within map boundaries */	828	/* make sure the object is within map boundaries */
802	if (op->x < 0 || op->x >= MAP_WIDTH(op->map) ||	829	if (op->x < 0 || op->x >= MAP_WIDTH (op->map) || op->y < 0 || op->y >= MAP_HEIGHT (op->map))
803	op->y < 0 || op->y >= MAP_HEIGHT(op->map)) {	830	{
804	LOG(llevError,"update_object() called for object out of map!\n");	831	LOG (llevError, "update_object() called for object out of map!\n");
805	#ifdef MANY_CORES	832	#ifdef MANY_CORES
806	abort();	833	abort ();
807	#endif	834	#endif
808	return;	835	return;
809	}
810		836	}
		837
811	flags = GET_MAP_FLAGS(op->map, op->x, op->y);	838	flags = GET_MAP_FLAGS (op->map, op->x, op->y);
812	SET_MAP_FLAGS(op->map, op->x, op->y, flags | P_NEED_UPDATE);	839	SET_MAP_FLAGS (op->map, op->x, op->y, flags | P_NEED_UPDATE);
813	move_slow = GET_MAP_MOVE_SLOW(op->map, op->x, op->y);	840	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);
814	move_on = GET_MAP_MOVE_ON(op->map, op->x, op->y);	841	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);
815	move_block = GET_MAP_MOVE_BLOCK(op->map, op->x, op->y);	842	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);
816	move_off = GET_MAP_MOVE_OFF(op->map, op->x, op->y);	843	move_off = GET_MAP_MOVE_OFF (op->map, op->x, op->y);
817		844
818	if (action == UP_OBJ_INSERT) {	845	if (action == UP_OBJ_INSERT)
		846	{
819	if (QUERY_FLAG(op, FLAG_BLOCKSVIEW) && !(flags & P_BLOCKSVIEW))	847	if (QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(flags & P_BLOCKSVIEW))
820	update_now=1;	848	update_now = 1;
821		849
822	if (QUERY_FLAG(op, FLAG_NO_MAGIC) && !(flags & P_NO_MAGIC))	850	if (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(flags & P_NO_MAGIC))
823	update_now=1;	851	update_now = 1;
824		852
825	if (QUERY_FLAG(op, FLAG_DAMNED) && !(flags & P_NO_CLERIC))	853	if (QUERY_FLAG (op, FLAG_DAMNED) && !(flags & P_NO_CLERIC))
826	update_now=1;	854	update_now = 1;
827		855
828	if (QUERY_FLAG(op, FLAG_ALIVE) && !(flags & P_IS_ALIVE))	856	if (QUERY_FLAG (op, FLAG_ALIVE) && !(flags & P_IS_ALIVE))
829	update_now=1;	857	update_now = 1;
830		858
		859	if (op->type == SAFE_GROUND && !(flags & P_SAFE))
		860	update_now = 1;
		861
831	if ((move_on | op->move_on) != move_on) update_now=1;	862	if ((move_on | op->move_on) != move_on)
		863	update_now = 1;
		864
832	if ((move_off | op->move_off) != move_off) update_now=1;	865	if ((move_off | op->move_off) != move_off)
		866	update_now = 1;
		867
833	/* This isn't perfect, but I don't expect a lot of objects to	868	/* This isn't perfect, but I don't expect a lot of objects to
834	* to have move_allow right now.	869	* to have move_allow right now.
835	*/	870	*/
836	if (((move_block | op->move_block) & ~op->move_allow) != move_block)	871	if (((move_block | op->move_block) & ~op->move_allow) != move_block)
837	update_now=1;	872	update_now = 1;
		873
838	if ((move_slow | op->move_slow) != move_slow) update_now=1;	874	if ((move_slow | op->move_slow) != move_slow)
		875	update_now = 1;
839	}	876	}
840	/* if the object is being removed, we can't make intelligent	877	/* if the object is being removed, we can't make intelligent
841	* decisions, because remove_ob can't really pass the object	878	* decisions, because remove_ob can't really pass the object
842	* that is being removed.	879	* that is being removed.
843	*/	880	*/
844	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE) {	881	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)
845	update_now=1;	882	update_now = 1;
846	} else if (action == UP_OBJ_FACE) {	883	else if (action == UP_OBJ_FACE)
847	/* Nothing to do for that case */	884	/* Nothing to do for that case */ ;
848	}
849	else {	885	else
850	LOG(llevError,"update_object called with invalid action: %d\n", action);	886	LOG (llevError, "update_object called with invalid action: %d\n", action);
851	}
852		887
853	if (update_now) {	888	if (update_now)
		889	{
854	SET_MAP_FLAGS(op->map, op->x, op->y, flags | P_NO_ERROR | P_NEED_UPDATE);	890	SET_MAP_FLAGS (op->map, op->x, op->y, flags | P_NO_ERROR | P_NEED_UPDATE);
855	update_position(op->map, op->x, op->y);	891	update_position (op->map, op->x, op->y);
856	}	892	}
857		893
858	if(op->more!=NULL)	894	if (op->more != NULL)
859	update_object(op->more, action);	895	update_object (op->more, action);
860	}	896	}
861		897
		898	object::vector object::mortals;
		899	object::vector object::objects; // not yet used
		900	object *object::first;
		901
		902	void object::free_mortals ()
		903	{
		904	for (AUTODECL (i, mortals.begin ()); i != mortals.end ();)
		905	if ((*i)->refcnt)
		906	++i; // further delay freeing
		907	else
		908	{
		909	delete *i;
		910	mortals.erase (i);
		911	}
		912
		913	static int lastmortals = 0;//D
		914
		915	if (mortals.size() != lastmortals)//D
		916	{
		917	lastmortals = mortals.size ();//D
		918	LOG (llevDebug, "%d objects in mortal queue\n", lastmortals);//D
		919	}
		920	}
		921
		922	object::object ()
		923	{
		924	SET_FLAG (this, FLAG_REMOVED);
		925
		926	expmul = 1.0;
		927	face = blank_face;
		928	}
		929
		930	object::~object ()
		931	{
		932	free_key_values (this);
		933	}
		934
		935	void object::link ()
		936	{
		937	count = ++ob_count;
		938	uuid = gen_uuid ();
		939
		940	prev = 0;
		941	next = object::first;
		942
		943	if (object::first)
		944	object::first->prev = this;
		945
		946	object::first = this;
		947	}
		948
		949	void object::unlink ()
		950	{
		951	//count = 0;//D
		952	if (!prev && !next) return;//D
		953
		954	if (this == object::first)
		955	object::first = next;
		956
		957	/* Remove this object from the list of used objects */
		958	if (prev) prev->next = next;
		959	if (next) next->prev = prev;
		960
		961	prev = 0;
		962	next = 0;
		963	}
		964
		965	object *object::create ()
		966	{
		967	object *op = new object;
		968	op->link ();
		969	return op;
		970	}
862		971
863	/*	972	/*
864	* free_object() frees everything allocated by an object, removes	973	* free_object() frees everything allocated by an object, removes
865	* it from the list of used objects, and puts it on the list of	974	* it from the list of used objects, and puts it on the list of
866	* free objects. The IS_FREED() flag is set in the object.	975	* free objects. The IS_FREED() flag is set in the object.
…		…
868	* this function to succeed.	977	* this function to succeed.
869	*	978	*
870	* If free_inventory is set, free inventory as well. Else drop items in	979	* If free_inventory is set, free inventory as well. Else drop items in
871	* inventory to the ground.	980	* inventory to the ground.
872	*/	981	*/
873		982	void object::free (bool free_inventory)
874	void
875	free_object (object * ob)
876	{	983	{
877	free_object2 (ob, 0);
878	}
879
880	void
881	free_object2 (object * ob, int free_inventory)
882	{
883	object *tmp, *op;
884
885	if (!QUERY_FLAG (ob, FLAG_REMOVED))	984	if (QUERY_FLAG (this, FLAG_FREED))
886	{	985	return;
887	LOG (llevDebug, "Free object called with non removed object\n");
888	dump_object (ob);
889	#ifdef MANY_CORES
890	abort ();
891	#endif
892	}
893		986
894	if (QUERY_FLAG (ob, FLAG_FRIENDLY))	987	if (QUERY_FLAG (this, FLAG_FRIENDLY))
895	{
896	LOG (llevMonster, "Warning: tried to free friendly object.\n");
897	remove_friendly_object (ob);	988	remove_friendly_object (this);
898	}
899		989
900	if (QUERY_FLAG (ob, FLAG_FREED))	990	if (!QUERY_FLAG (this, FLAG_REMOVED))
901	{	991	remove_ob (this);
902	dump_object (ob);	992
903	LOG (llevError, "Trying to free freed object.\n%s\n", errmsg);	993	SET_FLAG (this, FLAG_FREED);
904	return;	994
		995	if (more)
905	}	996	{
906		997	more->free (free_inventory);
907	if (ob->more != NULL)	998	more = 0;
908	{	999	}
909	free_object2 (ob->more, free_inventory);
910	ob->more = NULL;
911	}
912		1000
913	if (ob->inv)	1001	if (inv)
914	{	1002	{
915	/* Only if the space blocks everything do we not process -	1003	/* Only if the space blocks everything do we not process -
916	* if some form of movemnt is allowed, let objects	1004	* if some form of movement is allowed, let objects
917	* drop on that space.	1005	* drop on that space.
918	*/	1006	*/
919	if (free_inventory || ob->map == NULL	1007	if (free_inventory || !map || map->in_memory != MAP_IN_MEMORY || GET_MAP_MOVE_BLOCK (map, x, y) == MOVE_ALL)
920	|| ob->map->in_memory != MAP_IN_MEMORY	1008	{
921	|| (GET_MAP_MOVE_BLOCK (ob->map, ob->x, ob->y) == MOVE_ALL))	1009	object *op = inv;
922	{
923	op = ob->inv;
924		1010
925	while (op != NULL)	1011	while (op)
926	{	1012	{
927	tmp = op->below;	1013	object *tmp = op->below;
928	remove_ob (op);	1014	op->free (free_inventory);
929	free_object2 (op, free_inventory);
930	op = tmp;	1015	op = tmp;
931	}	1016	}
932	}	1017	}
933	else	1018	else
934	{ /* Put objects in inventory onto this space */	1019	{ /* Put objects in inventory onto this space */
935	op = ob->inv;	1020	object *op = inv;
936		1021
937	while (op != NULL)	1022	while (op)
938	{	1023	{
939	tmp = op->below;	1024	object *tmp = op->below;
		1025
940	remove_ob (op);	1026	remove_ob (op);
941		1027
942	if (QUERY_FLAG (op, FLAG_STARTEQUIP)	1028	if (QUERY_FLAG (op, FLAG_STARTEQUIP)
943	|| QUERY_FLAG (op, FLAG_NO_DROP) || op->type == RUNE	1029	|| QUERY_FLAG (op, FLAG_NO_DROP) || op->type == RUNE || op->type == TRAP || QUERY_FLAG (op, FLAG_IS_A_TEMPLATE))
944	|| op->type == TRAP || QUERY_FLAG (op, FLAG_IS_A_TEMPLATE))	1030	free_object (op);
945	free_object (op);	1031	else
946	else	1032	{
947	{	1033	op->x = x;
948	op->x = ob->x;	1034	op->y = y;
949	op->y = ob->y;
950	insert_ob_in_map (op, ob->map, NULL, 0); /* Insert in same map as the envir */	1035	insert_ob_in_map (op, map, 0, 0); /* Insert in same map as the envir */
951	}	1036	}
952		1037
953	op = tmp;	1038	op = tmp;
		1039	}
		1040	}
954	}	1041	}
955	}	1042
956	}	1043	// clear those pointers that likely might have circular references to us
		1044	owner = 0;
		1045	enemy = 0;
		1046	attacked_by = 0;
957		1047
958	/* Remove object from the active list */	1048	/* Remove object from the active list */
959	ob->speed = 0;	1049	speed = 0;
960	update_ob_speed (ob);	1050	update_ob_speed (this);
961		1051
962	SET_FLAG (ob, FLAG_FREED);	1052	unlink ();
963	ob->count = 0;
964		1053
965	/* Remove this object from the list of used objects */	1054	mortals.push_back (this);
966	if (ob->prev == NULL)
967	{
968	objects = ob->next;
969
970	if (objects != NULL)
971	objects->prev = NULL;
972	}
973	else
974	{
975	ob->prev->next = ob->next;
976
977	if (ob->next != NULL)
978	ob->next->prev = ob->prev;
979	}
980
981	free_key_values (ob);
982
983	/* Now link it with the free_objects list: */
984	ob->prev = 0;
985	ob->next = 0;
986
987	delete ob;
988	}	1055	}
989		1056
990	/*	1057	/*
991	* sub_weight() recursively (outwards) subtracts a number from the	1058	* sub_weight() recursively (outwards) subtracts a number from the
992	* weight of an object (and what is carried by it's environment(s)).	1059	* weight of an object (and what is carried by it's environment(s)).
993	*/	1060	*/
994		1061
		1062	void
995	void sub_weight (object *op, signed long weight) {	1063	sub_weight (object *op, signed long weight)
		1064	{
996	while (op != NULL) {	1065	while (op != NULL)
		1066	{
997	if (op->type == CONTAINER) {	1067	if (op->type == CONTAINER)
998	weight=(signed long)(weight*(100-op->stats.Str)/100);	1068	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
999	}	1069
1000	op->carrying-=weight;	1070	op->carrying -= weight;
1001	op = op->env;	1071	op = op->env;
1002	}	1072	}
1003	}	1073	}
1004		1074
1005	/* remove_ob(op):	1075	/* remove_ob(op):
1006	* This function removes the object op from the linked list of objects	1076	* This function removes the object op from the linked list of objects
1007	* which it is currently tied to. When this function is done, the	1077	* which it is currently tied to. When this function is done, the
…		…
1009	* environment, the x and y coordinates will be updated to	1079	* environment, the x and y coordinates will be updated to
1010	* the previous environment.	1080	* the previous environment.
1011	* Beware: This function is called from the editor as well!	1081	* Beware: This function is called from the editor as well!
1012	*/	1082	*/
1013		1083
		1084	void
1014	void remove_ob(object *op) {	1085	remove_ob (object *op)
		1086	{
1015	object *tmp,*last=NULL;	1087	object *tmp, *last = 0;
1016	object *otmp;	1088	object *otmp;
		1089
1017	tag_t tag;	1090	tag_t tag;
1018	int check_walk_off;	1091	int check_walk_off;
1019	mapstruct *m;	1092	mapstruct *m;
		1093
1020	sint16 x,y;	1094	sint16 x, y;
1021
1022		1095
1023	if(QUERY_FLAG(op,FLAG_REMOVED)) {	1096	if (QUERY_FLAG (op, FLAG_REMOVED))
1024	dump_object(op);	1097	return;
1025	LOG(llevError,"Trying to remove removed object.\n%s\n",errmsg);
1026		1098
1027	/* Changed it to always dump core in this case. As has been learned
1028	* in the past, trying to recover from errors almost always
1029	* make things worse, and this is a real error here - something
1030	* that should not happen.
1031	* Yes, if this was a mission critical app, trying to do something
1032	* to recover may make sense, but that is because failure of the app
1033	* may have other disastrous problems. Cf runs out of a script
1034	* so is easily enough restarted without any real problems.
1035	* MSW 2001-07-01
1036	*/
1037	abort();
1038	}
1039	if(op->more!=NULL)
1040	remove_ob(op->more);
1041
1042	SET_FLAG(op, FLAG_REMOVED);	1099	SET_FLAG (op, FLAG_REMOVED);
1043		1100
		1101	if (op->more != NULL)
		1102	remove_ob (op->more);
		1103
1044	/*	1104	/*
1045	* In this case, the object to be removed is in someones	1105	* In this case, the object to be removed is in someones
1046	* inventory.	1106	* inventory.
1047	*/	1107	*/
1048	if(op->env!=NULL) {	1108	if (op->env != NULL)
		1109	{
1049	if(op->nrof)	1110	if (op->nrof)
1050	sub_weight(op->env, op->weight*op->nrof);	1111	sub_weight (op->env, op->weight * op->nrof);
1051	else	1112	else
1052	sub_weight(op->env, op->weight+op->carrying);	1113	sub_weight (op->env, op->weight + op->carrying);
1053		1114
1054	/* NO_FIX_PLAYER is set when a great many changes are being	1115	/* NO_FIX_PLAYER is set when a great many changes are being
1055	* made to players inventory. If set, avoiding the call	1116	* made to players inventory. If set, avoiding the call
1056	* to save cpu time.	1117	* to save cpu time.
1057	*/	1118	*/
1058	if ((otmp=is_player_inv(op->env))!=NULL && otmp->contr &&	1119	if ((otmp = is_player_inv (op->env)) != NULL && otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1059	!QUERY_FLAG(otmp,FLAG_NO_FIX_PLAYER))
1060	fix_player(otmp);	1120	fix_player (otmp);
1061		1121
1062	if(op->above!=NULL)	1122	if (op->above != NULL)
1063	op->above->below=op->below;	1123	op->above->below = op->below;
1064	else	1124	else
1065	op->env->inv=op->below;	1125	op->env->inv = op->below;
1066		1126
1067	if(op->below!=NULL)	1127	if (op->below != NULL)
1068	op->below->above=op->above;	1128	op->below->above = op->above;
1069		1129
1070	/* we set up values so that it could be inserted into	1130	/* we set up values so that it could be inserted into
1071	* the map, but we don't actually do that - it is up	1131	* the map, but we don't actually do that - it is up
1072	* to the caller to decide what we want to do.	1132	* to the caller to decide what we want to do.
1073	*/	1133	*/
1074	op->x=op->env->x,op->y=op->env->y;	1134	op->x = op->env->x, op->y = op->env->y;
1075	op->map=op->env->map;	1135	op->map = op->env->map;
1076	op->above=NULL,op->below=NULL;	1136	op->above = NULL, op->below = NULL;
1077	op->env=NULL;	1137	op->env = NULL;
		1138	}
		1139	else if (op->map)
		1140	{
		1141	x = op->x;
		1142	y = op->y;
		1143	m = get_map_from_coord (op->map, &x, &y);
		1144
		1145	if (!m)
		1146	{
		1147	LOG (llevError, "remove_ob called when object was on map but appears to not be within valid coordinates? %s (%d,%d)\n",
		1148	op->map->path, op->x, op->y);
		1149	/* in old days, we used to set x and y to 0 and continue.
		1150	* it seems if we get into this case, something is probablye
		1151	* screwed up and should be fixed.
		1152	*/
		1153	abort ();
		1154	}
		1155
		1156	if (op->map != m)
		1157	LOG (llevDebug, "remove_ob: Object not really on map it claimed to be on? %s != %s, %d,%d != %d,%d\n",
		1158	op->map->path, m->path, op->x, op->y, x, y);
		1159
		1160	/* Re did the following section of code - it looks like it had
		1161	* lots of logic for things we no longer care about
		1162	*/
		1163
		1164	/* link the object above us */
		1165	if (op->above)
		1166	op->above->below = op->below;
		1167	else
		1168	SET_MAP_TOP (m, x, y, op->below); /* we were top, set new top */
		1169
		1170	/* Relink the object below us, if there is one */
		1171	if (op->below)
		1172	op->below->above = op->above;
		1173	else
		1174	{
		1175	/* Nothing below, which means we need to relink map object for this space
		1176	* use translated coordinates in case some oddness with map tiling is
		1177	* evident
		1178	*/
		1179	if (GET_MAP_OB (m, x, y) != op)
		1180	{
		1181	dump_object (op);
		1182	LOG (llevError,
		1183	"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);
		1184	dump_object (GET_MAP_OB (m, x, y));
		1185	LOG (llevError, "%s\n", errmsg);
		1186	}
		1187
		1188	SET_MAP_OB (m, x, y, op->above); /* goes on above it. */
		1189	}
		1190
		1191	op->above = 0;
		1192	op->below = 0;
		1193
		1194	if (op->map->in_memory == MAP_SAVING)
1078	return;	1195	return;
1079	}
1080		1196
1081	/* If we get here, we are removing it from a map */
1082	if (op->map == NULL) return;
1083
1084	x = op->x;
1085	y = op->y;
1086	m = get_map_from_coord(op->map, &x, &y);
1087
1088	if (!m) {
1089	LOG(llevError,"remove_ob called when object was on map but appears to not be within valid coordinates? %s (%d,%d)\n",
1090	op->map->path, op->x, op->y);
1091	/* in old days, we used to set x and y to 0 and continue.
1092	* it seems if we get into this case, something is probablye
1093	* screwed up and should be fixed.
1094	*/
1095	abort();
1096	}
1097	if (op->map != m) {
1098	LOG(llevDebug,"remove_ob: Object not really on map it claimed to be on? %s != %s, %d,%d != %d,%d\n",
1099	op->map->path, m->path, op->x, op->y, x, y);
1100	}
1101
1102	/* Re did the following section of code - it looks like it had
1103	* lots of logic for things we no longer care about
1104	*/
1105
1106	/* link the object above us */
1107	if (op->above)
1108	op->above->below=op->below;
1109	else
1110	SET_MAP_TOP(m,x,y,op->below); /* we were top, set new top */
1111
1112	/* Relink the object below us, if there is one */
1113	if(op->below) {
1114	op->below->above=op->above;
1115	} else {
1116	/* Nothing below, which means we need to relink map object for this space
1117	* use translated coordinates in case some oddness with map tiling is
1118	* evident
1119	*/
1120	if(GET_MAP_OB(m,x,y)!=op) {
1121	dump_object(op);
1122	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);
1123	dump_object(GET_MAP_OB(m,x,y));
1124	LOG(llevError,"%s\n",errmsg);
1125	}
1126	SET_MAP_OB(m,x,y,op->above); /* goes on above it. */
1127	}
1128	op->above=NULL;
1129	op->below=NULL;
1130
1131	if (op->map->in_memory == MAP_SAVING)
1132	return;
1133
1134	tag = op->count;	1197	tag = op->count;
1135	check_walk_off = ! QUERY_FLAG (op, FLAG_NO_APPLY);	1198	check_walk_off = !QUERY_FLAG (op, FLAG_NO_APPLY);
		1199
1136	for(tmp=GET_MAP_OB(m,x,y);tmp!=NULL;tmp=tmp->above) {	1200	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)
		1201	{
1137	/* No point updating the players look faces if he is the object	1202	/* No point updating the players look faces if he is the object
1138	* being removed.	1203	* being removed.
1139	*/	1204	*/
1140		1205
1141	if(tmp->type==PLAYER && tmp!=op) {	1206	if (tmp->type == PLAYER && tmp != op)
		1207	{
1142	/* If a container that the player is currently using somehow gets	1208	/* If a container that the player is currently using somehow gets
1143	* removed (most likely destroyed), update the player view	1209	* removed (most likely destroyed), update the player view
1144	* appropriately.	1210	* appropriately.
1145	*/	1211	*/
1146	if (tmp->container==op) {	1212	if (tmp->container == op)
		1213	{
1147	CLEAR_FLAG(op, FLAG_APPLIED);	1214	CLEAR_FLAG (op, FLAG_APPLIED);
1148	tmp->container=NULL;	1215	tmp->container = NULL;
		1216	}
		1217
		1218	tmp->contr->socket.update_look = 1;
1149	}	1219	}
1150	tmp->contr->socket.update_look=1;	1220
1151	}
1152	/* See if player moving off should effect something */	1221	/* See if player moving off should effect something */
1153	if (check_walk_off && ((op->move_type & tmp->move_off) &&	1222	if (check_walk_off && ((op->move_type & tmp->move_off) && (op->move_type & ~tmp->move_off & ~tmp->move_block) == 0))
1154	(op->move_type & ~tmp->move_off & ~tmp->move_block)==0)) {	1223	{
1155
1156	move_apply(tmp, op, NULL);	1224	move_apply (tmp, op, NULL);
		1225
1157	if (was_destroyed (op, tag)) {	1226	if (was_destroyed (op, tag))
		1227	{
1158	LOG (llevError, "BUG: remove_ob(): name %s, archname %s destroyed "	1228	LOG (llevError, "BUG: remove_ob(): name %s, archname %s destroyed " "leaving object\n", &tmp->name, &tmp->arch->name);
1159	"leaving object\n", &tmp->name, &tmp->arch->name);	1229	}
1160	}	1230	}
1161	}
1162		1231
1163	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */	1232	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */
1164		1233
1165	if(tmp->above == tmp)	1234	if (tmp->above == tmp)
1166	tmp->above = NULL;	1235	tmp->above = NULL;
		1236
1167	last=tmp;	1237	last = tmp;
1168	}	1238	}
		1239
1169	/* last == NULL of there are no objects on this space */	1240	/* last == NULL of there are no objects on this space */
1170	if (last==NULL) {	1241	if (last == NULL)
		1242	{
1171	/* set P_NEED_UPDATE, otherwise update_position will complain. In theory,	1243	/* set P_NEED_UPDATE, otherwise update_position will complain. In theory,
1172	* we could preserve the flags (GET_MAP_FLAGS), but update_position figures	1244	* we could preserve the flags (GET_MAP_FLAGS), but update_position figures
1173	* those out anyways, and if there are any flags set right now, they won't	1245	* those out anyways, and if there are any flags set right now, they won't
1174	* be correct anyways.	1246	* be correct anyways.
1175	*/	1247	*/
1176	SET_MAP_FLAGS(op->map, op->x, op->y, P_NEED_UPDATE);	1248	SET_MAP_FLAGS (op->map, op->x, op->y, P_NEED_UPDATE);
1177	update_position(op->map, op->x, op->y);	1249	update_position (op->map, op->x, op->y);
1178	}	1250	}
1179	else	1251	else
1180	update_object(last, UP_OBJ_REMOVE);	1252	update_object (last, UP_OBJ_REMOVE);
1181		1253
1182	if(QUERY_FLAG(op,FLAG_BLOCKSVIEW)|| (op->glow_radius != 0))	1254	if (QUERY_FLAG (op, FLAG_BLOCKSVIEW) || (op->glow_radius != 0))
1183	update_all_los(op->map, op->x, op->y);	1255	update_all_los (op->map, op->x, op->y);
1184		1256	}
1185	}	1257	}
1186		1258
1187	/*	1259	/*
1188	* merge_ob(op,top):	1260	* merge_ob(op,top):
1189	*	1261	*
1190	* This function goes through all objects below and including top, and	1262	* This function goes through all objects below and including top, and
1191	* merges op to the first matching object.	1263	* merges op to the first matching object.
1192	* If top is NULL, it is calculated.	1264	* If top is NULL, it is calculated.
1193	* Returns pointer to object if it succeded in the merge, otherwise NULL	1265	* Returns pointer to object if it succeded in the merge, otherwise NULL
1194	*/	1266	*/
1195		1267	object *
1196	object *merge_ob(object *op, object *top) {	1268	merge_ob (object *op, object *top)
		1269	{
1197	if(!op->nrof)	1270	if (!op->nrof)
1198	return 0;	1271	return 0;
		1272
1199	if(top==NULL)	1273	if (top == NULL)
1200	for(top=op;top!=NULL&&top->above!=NULL;top=top->above);	1274	for (top = op; top != NULL && top->above != NULL; top = top->above);
		1275
1201	for(;top!=NULL;top=top->below) {	1276	for (; top != NULL; top = top->below)
		1277	{
1202	if(top==op)	1278	if (top == op)
1203	continue;	1279	continue;
1204	if (CAN_MERGE(op,top))	1280	if (CAN_MERGE (op, top))
1205	{	1281	{
1206	top->nrof+=op->nrof;	1282	top->nrof += op->nrof;
		1283
1207	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/	1284	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/
1208	op->weight = 0; /* Don't want any adjustements now */	1285	op->weight = 0; /* Don't want any adjustements now */
1209	remove_ob(op);	1286	remove_ob (op);
1210	free_object(op);	1287	free_object (op);
1211	return top;	1288	return top;
1212	}	1289	}
1213	}	1290	}
		1291
1214	return NULL;	1292	return 0;
1215	}	1293	}
1216		1294
1217	/*	1295	/*
1218	* same as insert_ob_in_map except it handle separate coordinates and do a clean	1296	* same as insert_ob_in_map except it handle separate coordinates and do a clean
1219	* job preparing multi-part monsters	1297	* job preparing multi-part monsters
1220	*/	1298	*/
		1299	object *
1221	object *insert_ob_in_map_at(object *op, mapstruct *m, object *originator, int flag, int x, int y){	1300	insert_ob_in_map_at (object *op, mapstruct *m, object *originator, int flag, int x, int y)
		1301	{
1222	object* tmp;	1302	object *tmp;
		1303
1223	if (op->head)	1304	if (op->head)
1224	op=op->head;	1305	op = op->head;
		1306
1225	for (tmp=op;tmp;tmp=tmp->more){	1307	for (tmp = op; tmp; tmp = tmp->more)
		1308	{
1226	tmp->x=x+tmp->arch->clone.x;	1309	tmp->x = x + tmp->arch->clone.x;
1227	tmp->y=y+tmp->arch->clone.y;	1310	tmp->y = y + tmp->arch->clone.y;
1228	}	1311	}
		1312
1229	return insert_ob_in_map (op, m, originator, flag);	1313	return insert_ob_in_map (op, m, originator, flag);
1230	}	1314	}
1231		1315
1232	/*	1316	/*
1233	* insert_ob_in_map (op, map, originator, flag):	1317	* insert_ob_in_map (op, map, originator, flag):
1234	* This function inserts the object in the two-way linked list	1318	* This function inserts the object in the two-way linked list
…		…
1248	* new object if 'op' was merged with other object	1332	* new object if 'op' was merged with other object
1249	* NULL if 'op' was destroyed	1333	* NULL if 'op' was destroyed
1250	* just 'op' otherwise	1334	* just 'op' otherwise
1251	*/	1335	*/
1252		1336
		1337	object *
1253	object *insert_ob_in_map (object *op, mapstruct *m, object *originator, int flag)	1338	insert_ob_in_map (object *op, mapstruct *m, object *originator, int flag)
1254	{	1339	{
1255	object *tmp, *top, *floor=NULL;	1340	object *tmp, *top, *floor = NULL;
1256	sint16 x,y;	1341	sint16 x, y;
1257		1342
1258	if (QUERY_FLAG (op, FLAG_FREED)) {	1343	if (QUERY_FLAG (op, FLAG_FREED))
		1344	{
1259	LOG (llevError, "Trying to insert freed object!\n");	1345	LOG (llevError, "Trying to insert freed object!\n");
		1346	return NULL;
		1347	}
		1348
		1349	if (m == NULL)
		1350	{
		1351	dump_object (op);
		1352	LOG (llevError, "Trying to insert in null-map!\n%s\n", errmsg);
		1353	return op;
		1354	}
		1355
		1356	if (out_of_map (m, op->x, op->y))
		1357	{
		1358	dump_object (op);
		1359	LOG (llevError, "Trying to insert object outside the map.\n%s\n", errmsg);
		1360	#ifdef MANY_CORES
		1361	/* Better to catch this here, as otherwise the next use of this object
		1362	* is likely to cause a crash. Better to find out where it is getting
		1363	* improperly inserted.
		1364	*/
		1365	abort ();
		1366	#endif
		1367	return op;
		1368	}
		1369
		1370	if (!QUERY_FLAG (op, FLAG_REMOVED))
		1371	{
		1372	dump_object (op);
		1373	LOG (llevError, "Trying to insert (map) inserted object.\n%s\n", errmsg);
		1374	return op;
		1375	}
		1376
		1377	if (op->more != NULL)
		1378	{
		1379	/* The part may be on a different map. */
		1380
		1381	object *more = op->more;
		1382
		1383	/* We really need the caller to normalize coordinates - if
		1384	* we set the map, that doesn't work if the location is within
		1385	* a map and this is straddling an edge. So only if coordinate
		1386	* is clear wrong do we normalize it.
		1387	*/
		1388	if (OUT_OF_REAL_MAP (more->map, more->x, more->y))
		1389	more->map = get_map_from_coord (m, &more->x, &more->y);
		1390	else if (!more->map)
		1391	{
		1392	/* For backwards compatibility - when not dealing with tiled maps,
		1393	* more->map should always point to the parent.
		1394	*/
		1395	more->map = m;
		1396	}
		1397
		1398	if (insert_ob_in_map (more, more->map, originator, flag) == NULL)
		1399	{
		1400	if (!op->head)
		1401	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");
		1402
		1403	return NULL;
		1404	}
		1405	}
		1406
		1407	CLEAR_FLAG (op, FLAG_REMOVED);
		1408
		1409	/* Ideally, the caller figures this out. However, it complicates a lot
		1410	* of areas of callers (eg, anything that uses find_free_spot would now
		1411	* need extra work
		1412	*/
		1413	op->map = get_map_from_coord (m, &op->x, &op->y);
		1414	x = op->x;
		1415	y = op->y;
		1416
		1417	/* this has to be done after we translate the coordinates.
		1418	*/
		1419	if (op->nrof && !(flag & INS_NO_MERGE))
		1420	for (tmp = GET_MAP_OB (op->map, x, y); tmp != NULL; tmp = tmp->above)
		1421	if (CAN_MERGE (op, tmp))
		1422	{
		1423	op->nrof += tmp->nrof;
		1424	remove_ob (tmp);
		1425	free_object (tmp);
		1426	}
		1427
		1428	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */
		1429	CLEAR_FLAG (op, FLAG_INV_LOCKED);
		1430
		1431	if (!QUERY_FLAG (op, FLAG_ALIVE))
		1432	CLEAR_FLAG (op, FLAG_NO_STEAL);
		1433
		1434	if (flag & INS_BELOW_ORIGINATOR)
		1435	{
		1436	if (originator->map != op->map || originator->x != op->x || originator->y != op->y)
		1437	{
		1438	LOG (llevError, "insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");
		1439	abort ();
		1440	}
		1441
		1442	op->above = originator;
		1443	op->below = originator->below;
		1444
		1445	if (op->below)
		1446	op->below->above = op;
		1447	else
		1448	SET_MAP_OB (op->map, op->x, op->y, op);
		1449
		1450	/* since *below* originator, no need to update top */
		1451	originator->below = op;
		1452	}
		1453	else
		1454	{
		1455	/* If there are other objects, then */
		1456	if ((!(flag & INS_MAP_LOAD)) && ((top = GET_MAP_OB (op->map, op->x, op->y)) != NULL))
		1457	{
		1458	object *last = NULL;
		1459
		1460	/*
		1461	* If there are multiple objects on this space, we do some trickier handling.
		1462	* We've already dealt with merging if appropriate.
		1463	* Generally, we want to put the new object on top. But if
		1464	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last
		1465	* floor, we want to insert above that and no further.
		1466	* Also, if there are spell objects on this space, we stop processing
		1467	* once we get to them. This reduces the need to traverse over all of
		1468	* them when adding another one - this saves quite a bit of cpu time
		1469	* when lots of spells are cast in one area. Currently, it is presumed
		1470	* that flying non pickable objects are spell objects.
		1471	*/
		1472
		1473	while (top != NULL)
		1474	{
		1475	if (QUERY_FLAG (top, FLAG_IS_FLOOR) || QUERY_FLAG (top, FLAG_OVERLAY_FLOOR))
		1476	floor = top;
		1477
		1478	if (QUERY_FLAG (top, FLAG_NO_PICK) && (top->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (top, FLAG_IS_FLOOR))
		1479	{
		1480	/* We insert above top, so we want this object below this */
		1481	top = top->below;
		1482	break;
		1483	}
		1484
		1485	last = top;
		1486	top = top->above;
		1487	}
		1488
		1489	/* Don't want top to be NULL, so set it to the last valid object */
		1490	top = last;
		1491
		1492	/* We let update_position deal with figuring out what the space
		1493	* looks like instead of lots of conditions here.
		1494	* makes things faster, and effectively the same result.
		1495	*/
		1496
		1497	/* Have object 'fall below' other objects that block view.
		1498	* Unless those objects are exits, type 66
		1499	* If INS_ON_TOP is used, don't do this processing
		1500	* Need to find the object that in fact blocks view, otherwise
		1501	* stacking is a bit odd.
		1502	*/
		1503	if (!(flag & INS_ON_TOP) &&
		1504	(get_map_flags (op->map, NULL, op->x, op->y, NULL, NULL) & P_BLOCKSVIEW) && (op->face && !op->face->visibility))
		1505	{
		1506	for (last = top; last != floor; last = last->below)
		1507	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))
		1508	break;
		1509	/* Check to see if we found the object that blocks view,
		1510	* and make sure we have a below pointer for it so that
		1511	* we can get inserted below this one, which requires we
		1512	* set top to the object below us.
		1513	*/
		1514	if (last && last->below && last != floor)
		1515	top = last->below;
		1516	}
		1517	} /* If objects on this space */
		1518
		1519	if (flag & INS_MAP_LOAD)
		1520	top = GET_MAP_TOP (op->map, op->x, op->y);
		1521
		1522	if (flag & INS_ABOVE_FLOOR_ONLY)
		1523	top = floor;
		1524
		1525	/* Top is the object that our object (op) is going to get inserted above.
		1526	*/
		1527
		1528	/* First object on this space */
		1529	if (!top)
		1530	{
		1531	op->above = GET_MAP_OB (op->map, op->x, op->y);
		1532
		1533	if (op->above)
		1534	op->above->below = op;
		1535
		1536	op->below = NULL;
		1537	SET_MAP_OB (op->map, op->x, op->y, op);
		1538	}
		1539	else
		1540	{ /* get inserted into the stack above top */
		1541	op->above = top->above;
		1542
		1543	if (op->above)
		1544	op->above->below = op;
		1545
		1546	op->below = top;
		1547	top->above = op;
		1548	}
		1549
		1550	if (op->above == NULL)
		1551	SET_MAP_TOP (op->map, op->x, op->y, op);
		1552	} /* else not INS_BELOW_ORIGINATOR */
		1553
		1554	if (op->type == PLAYER)
		1555	op->contr->do_los = 1;
		1556
		1557	/* If we have a floor, we know the player, if any, will be above
		1558	* it, so save a few ticks and start from there.
		1559	*/
		1560	if (!(flag & INS_MAP_LOAD))
		1561	for (tmp = floor ? floor : GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)
		1562	if (tmp->type == PLAYER)
		1563	tmp->contr->socket.update_look = 1;
		1564
		1565	/* If this object glows, it may affect lighting conditions that are
		1566	* visible to others on this map. But update_all_los is really
		1567	* an inefficient way to do this, as it means los for all players
		1568	* on the map will get recalculated. The players could very well
		1569	* be far away from this change and not affected in any way -
		1570	* this should get redone to only look for players within range,
		1571	* or just updating the P_NEED_UPDATE for spaces within this area
		1572	* of effect may be sufficient.
		1573	*/
		1574	if (MAP_DARKNESS (op->map) && (op->glow_radius != 0))
		1575	update_all_los (op->map, op->x, op->y);
		1576
		1577	/* updates flags (blocked, alive, no magic, etc) for this map space */
		1578	update_object (op, UP_OBJ_INSERT);
		1579
		1580	/* Don't know if moving this to the end will break anything. However,
		1581	* we want to have update_look set above before calling this.
		1582	*
		1583	* check_move_on() must be after this because code called from
		1584	* check_move_on() depends on correct map flags (so functions like
		1585	* blocked() and wall() work properly), and these flags are updated by
		1586	* update_object().
		1587	*/
		1588
		1589	/* if this is not the head or flag has been passed, don't check walk on status */
		1590	if (!(flag & INS_NO_WALK_ON) && !op->head)
		1591	{
		1592	if (check_move_on (op, originator))
1260	return NULL;	1593	return NULL;
1261	}
1262	if(m==NULL) {
1263	dump_object(op);
1264	LOG(llevError,"Trying to insert in null-map!\n%s\n",errmsg);
1265	return op;
1266	}
1267	if(out_of_map(m,op->x,op->y)) {
1268	dump_object(op);
1269	LOG(llevError,"Trying to insert object outside the map.\n%s\n", errmsg);
1270	#ifdef MANY_CORES
1271	/* Better to catch this here, as otherwise the next use of this object
1272	* is likely to cause a crash. Better to find out where it is getting
1273	* improperly inserted.
1274	*/
1275	abort();
1276	#endif
1277	return op;
1278	}
1279	if(!QUERY_FLAG(op,FLAG_REMOVED)) {
1280	dump_object(op);
1281	LOG(llevError,"Trying to insert (map) inserted object.\n%s\n", errmsg);
1282	return op;
1283	}
1284	if(op->more!=NULL) {
1285	/* The part may be on a different map. */
1286		1594
1287	object *more = op->more;
1288
1289	/* We really need the caller to normalize coordinates - if
1290	* we set the map, that doesn't work if the location is within
1291	* a map and this is straddling an edge. So only if coordinate
1292	* is clear wrong do we normalize it.
1293	*/
1294	if (OUT_OF_REAL_MAP(more->map, more->x, more->y)) {
1295	more->map = get_map_from_coord(m, &more->x, &more->y);
1296	} else if (!more->map) {
1297	/* For backwards compatibility - when not dealing with tiled maps,
1298	* more->map should always point to the parent.
1299	*/
1300	more->map = m;
1301	}
1302
1303	if (insert_ob_in_map(more, more->map, originator, flag) == NULL) {
1304	if ( ! op->head)
1305	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");
1306	return NULL;
1307	}
1308	}
1309	CLEAR_FLAG(op,FLAG_REMOVED);
1310
1311	/* Ideally, the caller figures this out. However, it complicates a lot
1312	* of areas of callers (eg, anything that uses find_free_spot would now
1313	* need extra work
1314	*/
1315	op->map=get_map_from_coord(m, &op->x, &op->y);
1316	x = op->x;
1317	y = op->y;
1318
1319	/* this has to be done after we translate the coordinates.
1320	*/
1321	if(op->nrof && !(flag & INS_NO_MERGE)) {
1322	for(tmp=GET_MAP_OB(op->map,x,y);tmp!=NULL;tmp=tmp->above)
1323	if (CAN_MERGE(op,tmp)) {
1324	op->nrof+=tmp->nrof;
1325	remove_ob(tmp);
1326	free_object(tmp);
1327	}
1328	}
1329
1330	CLEAR_FLAG(op,FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */
1331	CLEAR_FLAG(op, FLAG_INV_LOCKED);
1332	if (!QUERY_FLAG(op, FLAG_ALIVE))
1333	CLEAR_FLAG(op, FLAG_NO_STEAL);
1334
1335	if (flag & INS_BELOW_ORIGINATOR) {
1336	if (originator->map != op->map || originator->x != op->x ||
1337	originator->y != op->y) {
1338	LOG(llevError,"insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");
1339	abort();
1340	}
1341	op->above = originator;
1342	op->below = originator->below;
1343	if (op->below) op->below->above = op;
1344	else SET_MAP_OB(op->map, op->x, op->y, op);
1345	/* since *below* originator, no need to update top */
1346	originator->below = op;
1347	} else {
1348	/* If there are other objects, then */
1349	if((! (flag & INS_MAP_LOAD)) && ((top=GET_MAP_OB(op->map,op->x,op->y))!=NULL)) {
1350	object *last=NULL;
1351	/*
1352	* If there are multiple objects on this space, we do some trickier handling.
1353	* We've already dealt with merging if appropriate.
1354	* Generally, we want to put the new object on top. But if
1355	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last
1356	* floor, we want to insert above that and no further.
1357	* Also, if there are spell objects on this space, we stop processing
1358	* once we get to them. This reduces the need to traverse over all of
1359	* them when adding another one - this saves quite a bit of cpu time
1360	* when lots of spells are cast in one area. Currently, it is presumed
1361	* that flying non pickable objects are spell objects.
1362	*/
1363
1364	while (top != NULL) {
1365	if (QUERY_FLAG(top, FLAG_IS_FLOOR) ||
1366	QUERY_FLAG(top, FLAG_OVERLAY_FLOOR)) floor = top;
1367	if (QUERY_FLAG(top, FLAG_NO_PICK)
1368	&& (top->move_type & (MOVE_FLY_LOW |MOVE_FLY_HIGH))
1369	&& !QUERY_FLAG(top, FLAG_IS_FLOOR))
1370	{
1371	/* We insert above top, so we want this object below this */
1372	top=top->below;
1373	break;
1374	}
1375	last = top;
1376	top = top->above;
1377	}
1378	/* Don't want top to be NULL, so set it to the last valid object */
1379	top = last;
1380
1381	/* We let update_position deal with figuring out what the space
1382	* looks like instead of lots of conditions here.
1383	* makes things faster, and effectively the same result.
1384	*/
1385
1386	/* Have object 'fall below' other objects that block view.
1387	* Unless those objects are exits, type 66
1388	* If INS_ON_TOP is used, don't do this processing
1389	* Need to find the object that in fact blocks view, otherwise
1390	* stacking is a bit odd.
1391	*/
1392	if (!(flag & INS_ON_TOP) &&
1393	(get_map_flags(op->map, NULL, op->x, op->y, NULL, NULL) & P_BLOCKSVIEW) &&
1394	(op->face && !op->face->visibility)) {
1395	for (last=top; last != floor; last=last->below)
1396	if (QUERY_FLAG(last, FLAG_BLOCKSVIEW)&&(last->type != EXIT)) break;
1397	/* Check to see if we found the object that blocks view,
1398	* and make sure we have a below pointer for it so that
1399	* we can get inserted below this one, which requires we
1400	* set top to the object below us.
1401	*/
1402	if (last && last->below && last != floor) top=last->below;
1403	}
1404	} /* If objects on this space */
1405	if (flag & INS_MAP_LOAD)
1406	top = GET_MAP_TOP(op->map,op->x,op->y);
1407	if (flag & INS_ABOVE_FLOOR_ONLY) top = floor;
1408
1409	/* Top is the object that our object (op) is going to get inserted above.
1410	*/
1411
1412	/* First object on this space */
1413	if (!top) {
1414	op->above = GET_MAP_OB(op->map, op->x, op->y);
1415	if (op->above) op->above->below = op;
1416	op->below = NULL;
1417	SET_MAP_OB(op->map, op->x, op->y, op);
1418	} else { /* get inserted into the stack above top */
1419	op->above = top->above;
1420	if (op->above) op->above->below = op;
1421	op->below = top;
1422	top->above = op;
1423	}
1424	if (op->above==NULL)
1425	SET_MAP_TOP(op->map,op->x, op->y, op);
1426	} /* else not INS_BELOW_ORIGINATOR */
1427
1428	if(op->type==PLAYER)
1429	op->contr->do_los=1;
1430
1431	/* If we have a floor, we know the player, if any, will be above
1432	* it, so save a few ticks and start from there.
1433	*/
1434	if (!(flag & INS_MAP_LOAD))
1435	for(tmp=floor?floor:GET_MAP_OB(op->map,op->x,op->y);tmp!=NULL;tmp=tmp->above) {
1436	if (tmp->type == PLAYER)
1437	tmp->contr->socket.update_look=1;
1438	}
1439
1440	/* If this object glows, it may affect lighting conditions that are
1441	* visible to others on this map. But update_all_los is really
1442	* an inefficient way to do this, as it means los for all players
1443	* on the map will get recalculated. The players could very well
1444	* be far away from this change and not affected in any way -
1445	* this should get redone to only look for players within range,
1446	* or just updating the P_NEED_UPDATE for spaces within this area
1447	* of effect may be sufficient.
1448	*/
1449	if(MAP_DARKNESS(op->map) && (op->glow_radius != 0))
1450	update_all_los(op->map, op->x, op->y);
1451
1452
1453	/* updates flags (blocked, alive, no magic, etc) for this map space */
1454	update_object(op,UP_OBJ_INSERT);
1455
1456
1457	/* Don't know if moving this to the end will break anything. However,
1458	* we want to have update_look set above before calling this.
1459	*
1460	* check_move_on() must be after this because code called from
1461	* check_move_on() depends on correct map flags (so functions like
1462	* blocked() and wall() work properly), and these flags are updated by
1463	* update_object().
1464	*/
1465
1466	/* if this is not the head or flag has been passed, don't check walk on status */
1467
1468	if (!(flag & INS_NO_WALK_ON) && !op->head) {
1469	if (check_move_on(op, originator))
1470	return NULL;
1471
1472	/* If we are a multi part object, lets work our way through the check	1595	/* If we are a multi part object, lets work our way through the check
1473	* walk on's.	1596	* walk on's.
1474	*/	1597	*/
1475	for (tmp=op->more; tmp!=NULL; tmp=tmp->more)	1598	for (tmp = op->more; tmp != NULL; tmp = tmp->more)
1476	if (check_move_on (tmp, originator))	1599	if (check_move_on (tmp, originator))
1477	return NULL;	1600	return NULL;
1478	}	1601	}
		1602
1479	return op;	1603	return op;
1480	}	1604	}
1481		1605
1482	/* this function inserts an object in the map, but if it	1606	/* this function inserts an object in the map, but if it
1483	* finds an object of its own type, it'll remove that one first.	1607	* finds an object of its own type, it'll remove that one first.
1484	* op is the object to insert it under: supplies x and the map.	1608	* op is the object to insert it under: supplies x and the map.
1485	*/	1609	*/
		1610	void
1486	void replace_insert_ob_in_map(const char *arch_string, object *op) {	1611	replace_insert_ob_in_map (const char *arch_string, object *op)
		1612	{
1487	object *tmp;	1613	object *
1488	object *tmp1;	1614	tmp;
		1615	object *
		1616	tmp1;
1489		1617
1490	/* first search for itself and remove any old instances */	1618	/* first search for itself and remove any old instances */
1491		1619
1492	for(tmp=GET_MAP_OB(op->map,op->x,op->y); tmp!=NULL; tmp=tmp->above) {	1620	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)
		1621	{
1493	if(!strcmp(tmp->arch->name,arch_string)) /* same archetype */ {	1622	if (!strcmp (tmp->arch->name, arch_string)) /* same archetype */
		1623	{
1494	remove_ob(tmp);	1624	remove_ob (tmp);
1495	free_object(tmp);	1625	free_object (tmp);
1496	}	1626	}
1497	}	1627	}
1498		1628
1499	tmp1=arch_to_object(find_archetype(arch_string));	1629	tmp1 = arch_to_object (archetype::find (arch_string));
1500		1630
1501		1631	tmp1->x = op->x;
1502	tmp1->x = op->x; tmp1->y = op->y;	1632	tmp1->y = op->y;
1503	insert_ob_in_map(tmp1,op->map,op,0);	1633	insert_ob_in_map (tmp1, op->map, op, 0);
1504	}	1634	}
1505		1635
1506	/*	1636	/*
1507	* get_split_ob(ob,nr) splits up ob into two parts. The part which	1637	* get_split_ob(ob,nr) splits up ob into two parts. The part which
1508	* is returned contains nr objects, and the remaining parts contains	1638	* is returned contains nr objects, and the remaining parts contains
1509	* the rest (or is removed and freed if that number is 0).	1639	* the rest (or is removed and freed if that number is 0).
1510	* On failure, NULL is returned, and the reason put into the	1640	* On failure, NULL is returned, and the reason put into the
1511	* global static errmsg array.	1641	* global static errmsg array.
1512	*/	1642	*/
1513		1643
		1644	object *
1514	object *get_split_ob(object *orig_ob, uint32 nr) {	1645	get_split_ob (object *orig_ob, uint32 nr)
1515	object *newob;	1646	{
		1647	object *
		1648	newob;
		1649	int
1516	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);	1650	is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);
1517		1651
1518	if(orig_ob->nrof<nr) {	1652	if (orig_ob->nrof < nr)
1519	sprintf(errmsg,"There are only %d %ss.",	1653	{
1520	orig_ob->nrof?orig_ob->nrof:1, &orig_ob->name);	1654	sprintf (errmsg, "There are only %d %ss.", orig_ob->nrof ? orig_ob->nrof : 1, &orig_ob->name);
1521	return NULL;	1655	return NULL;
1522	}	1656	}
		1657
1523	newob = object_create_clone(orig_ob);	1658	newob = object_create_clone (orig_ob);
		1659
1524	if((orig_ob->nrof-=nr)<1) {	1660	if ((orig_ob->nrof -= nr) < 1)
		1661	{
1525	if ( ! is_removed)	1662	if (!is_removed)
1526	remove_ob(orig_ob);	1663	remove_ob (orig_ob);
1527	free_object2(orig_ob, 1);	1664	free_object2 (orig_ob, 1);
1528	}	1665	}
1529	else if ( ! is_removed) {	1666	else if (!is_removed)
		1667	{
1530	if(orig_ob->env!=NULL)	1668	if (orig_ob->env != NULL)
1531	sub_weight (orig_ob->env,orig_ob->weight*nr);	1669	sub_weight (orig_ob->env, orig_ob->weight * nr);
1532	if (orig_ob->env == NULL && orig_ob->map->in_memory!=MAP_IN_MEMORY) {	1670	if (orig_ob->env == NULL && orig_ob->map->in_memory != MAP_IN_MEMORY)
		1671	{
1533	strcpy(errmsg, "Tried to split object whose map is not in memory.");	1672	strcpy (errmsg, "Tried to split object whose map is not in memory.");
1534	LOG(llevDebug,
1535	"Error, Tried to split object whose map is not in memory.\n");	1673	LOG (llevDebug, "Error, Tried to split object whose map is not in memory.\n");
1536	return NULL;	1674	return NULL;
1537	}	1675	}
1538	}	1676	}
		1677
1539	newob->nrof=nr;	1678	newob->nrof = nr;
1540		1679
1541	return newob;	1680	return newob;
1542	}	1681	}
1543		1682
1544	/*	1683	/*
1545	* decrease_ob_nr(object, number) decreases a specified number from	1684	* decrease_ob_nr(object, number) decreases a specified number from
1546	* the amount of an object. If the amount reaches 0, the object	1685	* the amount of an object. If the amount reaches 0, the object
1547	* is subsequently removed and freed.	1686	* is subsequently removed and freed.
1548	*	1687	*
1549	* Return value: 'op' if something is left, NULL if the amount reached 0	1688	* Return value: 'op' if something is left, NULL if the amount reached 0
1550	*/	1689	*/
1551		1690
		1691	object *
1552	object *decrease_ob_nr (object *op, uint32 i)	1692	decrease_ob_nr (object *op, uint32 i)
1553	{	1693	{
1554	object *tmp;	1694	object *tmp;
1555	player *pl;	1695	player *pl;
1556		1696
1557	if (i == 0) /* objects with op->nrof require this check */	1697	if (i == 0) /* objects with op->nrof require this check */
1558	return op;	1698	return op;
1559		1699
1560	if (i > op->nrof)	1700	if (i > op->nrof)
1561	i = op->nrof;	1701	i = op->nrof;
1562		1702
1563	if (QUERY_FLAG (op, FLAG_REMOVED))	1703	if (QUERY_FLAG (op, FLAG_REMOVED))
		1704	op->nrof -= i;
		1705	else if (op->env != NULL)
		1706	{
		1707	/* is this object in the players inventory, or sub container
		1708	* therein?
		1709	*/
		1710	tmp = is_player_inv (op->env);
		1711	/* nope. Is this a container the player has opened?
		1712	* If so, set tmp to that player.
		1713	* IMO, searching through all the players will mostly
		1714	* likely be quicker than following op->env to the map,
		1715	* and then searching the map for a player.
		1716	*/
		1717	if (!tmp)
		1718	{
		1719	for (pl = first_player; pl; pl = pl->next)
		1720	if (pl->ob->container == op->env)
		1721	break;
		1722	if (pl)
		1723	tmp = pl->ob;
		1724	else
		1725	tmp = NULL;
		1726	}
		1727
		1728	if (i < op->nrof)
		1729	{
		1730	sub_weight (op->env, op->weight * i);
		1731	op->nrof -= i;
		1732	if (tmp)
		1733	{
		1734	esrv_send_item (tmp, op);
		1735	}
		1736	}
		1737	else
		1738	{
		1739	remove_ob (op);
		1740	op->nrof = 0;
		1741	if (tmp)
		1742	{
		1743	esrv_del_item (tmp->contr, op->count);
		1744	}
		1745	}
1564	{	1746	}
		1747	else
		1748	{
		1749	object *above = op->above;
		1750
		1751	if (i < op->nrof)
1565	op->nrof -= i;	1752	op->nrof -= i;
1566	}	1753	else
1567	else if (op->env != NULL)
1568	{
1569	/* is this object in the players inventory, or sub container
1570	* therein?
1571	*/
1572	tmp = is_player_inv (op->env);
1573	/* nope. Is this a container the player has opened?
1574	* If so, set tmp to that player.
1575	* IMO, searching through all the players will mostly
1576	* likely be quicker than following op->env to the map,
1577	* and then searching the map for a player.
1578	*/
1579	if (!tmp) {
1580	for (pl=first_player; pl; pl=pl->next)
1581	if (pl->ob->container == op->env) break;
1582	if (pl) tmp=pl->ob;
1583	else tmp=NULL;
1584	}	1754	{
1585
1586	if (i < op->nrof) {
1587	sub_weight (op->env, op->weight * i);
1588	op->nrof -= i;
1589	if (tmp) {
1590	esrv_send_item(tmp, op);
1591	}
1592	} else {
1593	remove_ob (op);	1755	remove_ob (op);
1594	op->nrof = 0;	1756	op->nrof = 0;
1595	if (tmp) {
1596	esrv_del_item(tmp->contr, op->count);
1597	}	1757	}
1598	}
1599	}
1600	else
1601	{
1602	object *above = op->above;
1603		1758
1604	if (i < op->nrof) {
1605	op->nrof -= i;
1606	} else {
1607	remove_ob (op);
1608	op->nrof = 0;
1609	}
1610	/* Since we just removed op, op->above is null */	1759	/* Since we just removed op, op->above is null */
1611	for (tmp = above; tmp != NULL; tmp = tmp->above)	1760	for (tmp = above; tmp != NULL; tmp = tmp->above)
1612	if (tmp->type == PLAYER) {	1761	if (tmp->type == PLAYER)
		1762	{
1613	if (op->nrof)	1763	if (op->nrof)
1614	esrv_send_item(tmp, op);	1764	esrv_send_item (tmp, op);
1615	else	1765	else
1616	esrv_del_item(tmp->contr, op->count);	1766	esrv_del_item (tmp->contr, op->count);
1617	}	1767	}
1618	}	1768	}
1619		1769
1620	if (op->nrof) {	1770	if (op->nrof)
1621	return op;	1771	return op;
1622	} else {	1772	else
		1773	{
1623	free_object (op);	1774	free_object (op);
1624	return NULL;	1775	return NULL;
1625	}	1776	}
1626	}	1777	}
1627		1778
1628	/*	1779	/*
1629	* add_weight(object, weight) adds the specified weight to an object,	1780	* add_weight(object, weight) adds the specified weight to an object,
1630	* and also updates how much the environment(s) is/are carrying.	1781	* and also updates how much the environment(s) is/are carrying.
1631	*/	1782	*/
1632		1783
		1784	void
1633	void add_weight (object *op, signed long weight) {	1785	add_weight (object *op, signed long weight)
		1786	{
1634	while (op!=NULL) {	1787	while (op != NULL)
		1788	{
1635	if (op->type == CONTAINER) {	1789	if (op->type == CONTAINER)
1636	weight=(signed long)(weight*(100-op->stats.Str)/100);	1790	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1637	}	1791
1638	op->carrying+=weight;	1792	op->carrying += weight;
1639	op=op->env;	1793	op = op->env;
1640	}	1794	}
1641	}	1795	}
1642		1796
1643	/*	1797	/*
1644	* insert_ob_in_ob(op,environment):	1798	* insert_ob_in_ob(op,environment):
1645	* This function inserts the object op in the linked list	1799	* This function inserts the object op in the linked list
…		…
1652	*	1806	*
1653	* The function returns now pointer to inserted item, and return value can	1807	* The function returns now pointer to inserted item, and return value can
1654	* be != op, if items are merged. -Tero	1808	* be != op, if items are merged. -Tero
1655	*/	1809	*/
1656		1810
		1811	object *
1657	object *insert_ob_in_ob(object *op,object *where) {	1812	insert_ob_in_ob (object *op, object *where)
1658	object *tmp, *otmp;	1813	{
		1814	object *
		1815	tmp, *
		1816	otmp;
1659		1817
1660	if(!QUERY_FLAG(op,FLAG_REMOVED)) {	1818	if (!QUERY_FLAG (op, FLAG_REMOVED))
		1819	{
1661	dump_object(op);	1820	dump_object (op);
1662	LOG(llevError,"Trying to insert (ob) inserted object.\n%s\n", errmsg);	1821	LOG (llevError, "Trying to insert (ob) inserted object.\n%s\n", errmsg);
1663	return op;	1822	return op;
1664	}	1823	}
		1824
1665	if(where==NULL) {	1825	if (where == NULL)
		1826	{
1666	dump_object(op);	1827	dump_object (op);
1667	LOG(llevError,"Trying to put object in NULL.\n%s\n", errmsg);	1828	LOG (llevError, "Trying to put object in NULL.\n%s\n", errmsg);
1668	return op;	1829	return op;
1669	}	1830	}
		1831
1670	if (where->head) {	1832	if (where->head)
1671	LOG(llevDebug,	1833	{
1672	"Warning: Tried to insert object wrong part of multipart object.\n");	1834	LOG (llevDebug, "Warning: Tried to insert object wrong part of multipart object.\n");
1673	where = where->head;	1835	where = where->head;
1674	}	1836	}
		1837
1675	if (op->more) {	1838	if (op->more)
		1839	{
1676	LOG(llevError, "Tried to insert multipart object %s (%d)\n",	1840	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);
1677	&op->name, op->count);
1678	return op;	1841	return op;
1679	}	1842	}
		1843
1680	CLEAR_FLAG(op, FLAG_OBJ_ORIGINAL);	1844	CLEAR_FLAG (op, FLAG_OBJ_ORIGINAL);
1681	CLEAR_FLAG(op, FLAG_REMOVED);	1845	CLEAR_FLAG (op, FLAG_REMOVED);
1682	if(op->nrof) {	1846	if (op->nrof)
		1847	{
1683	for(tmp=where->inv;tmp!=NULL;tmp=tmp->below)	1848	for (tmp = where->inv; tmp != NULL; tmp = tmp->below)
1684	if ( CAN_MERGE(tmp,op) ) {	1849	if (CAN_MERGE (tmp, op))
		1850	{
1685	/* return the original object and remove inserted object	1851	/* return the original object and remove inserted object
1686	(client needs the original object) */	1852	(client needs the original object) */
1687	tmp->nrof += op->nrof;	1853	tmp->nrof += op->nrof;
1688	/* Weight handling gets pretty funky. Since we are adding to	1854	/* Weight handling gets pretty funky. Since we are adding to
1689	* tmp->nrof, we need to increase the weight.	1855	* tmp->nrof, we need to increase the weight.
1690	*/	1856	*/
1691	add_weight (where, op->weight*op->nrof);	1857	add_weight (where, op->weight * op->nrof);
1692	SET_FLAG(op, FLAG_REMOVED);	1858	SET_FLAG (op, FLAG_REMOVED);
1693	free_object(op); /* free the inserted object */	1859	free_object (op); /* free the inserted object */
1694	op = tmp;	1860	op = tmp;
1695	remove_ob (op); /* and fix old object's links */	1861	remove_ob (op); /* and fix old object's links */
1696	CLEAR_FLAG(op, FLAG_REMOVED);	1862	CLEAR_FLAG (op, FLAG_REMOVED);
1697	break;	1863	break;
1698	}	1864	}
1699		1865
1700	/* I assume combined objects have no inventory	1866	/* I assume combined objects have no inventory
1701	* We add the weight - this object could have just been removed	1867	* We add the weight - this object could have just been removed
1702	* (if it was possible to merge). calling remove_ob will subtract	1868	* (if it was possible to merge). calling remove_ob will subtract
1703	* the weight, so we need to add it in again, since we actually do	1869	* the weight, so we need to add it in again, since we actually do
1704	* the linking below	1870	* the linking below
1705	*/	1871	*/
1706	add_weight (where, op->weight*op->nrof);	1872	add_weight (where, op->weight * op->nrof);
		1873	}
1707	} else	1874	else
1708	add_weight (where, (op->weight+op->carrying));	1875	add_weight (where, (op->weight + op->carrying));
1709		1876
1710	otmp=is_player_inv(where);	1877	otmp = is_player_inv (where);
1711	if (otmp&&otmp->contr!=NULL) {	1878	if (otmp && otmp->contr != NULL)
		1879	{
1712	if (!QUERY_FLAG(otmp,FLAG_NO_FIX_PLAYER))	1880	if (!QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1713	fix_player(otmp);	1881	fix_player (otmp);
1714	}	1882	}
1715		1883
1716	op->map=NULL;	1884	op->map = NULL;
1717	op->env=where;	1885	op->env = where;
1718	op->above=NULL;	1886	op->above = NULL;
1719	op->below=NULL;	1887	op->below = NULL;
1720	op->x=0,op->y=0;	1888	op->x = 0, op->y = 0;
1721		1889
1722	/* reset the light list and los of the players on the map */	1890	/* reset the light list and los of the players on the map */
1723	if((op->glow_radius!=0)&&where->map)	1891	if ((op->glow_radius != 0) && where->map)
1724	{	1892	{
1725	#ifdef DEBUG_LIGHTS	1893	#ifdef DEBUG_LIGHTS
1726	LOG(llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n",	1894	LOG (llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n", op->name);
1727	op->name);
1728	#endif /* DEBUG_LIGHTS */	1895	#endif /* DEBUG_LIGHTS */
		1896	if (MAP_DARKNESS (where->map))
1729	if (MAP_DARKNESS(where->map)) update_all_los(where->map, where->x, where->y);	1897	update_all_los (where->map, where->x, where->y);
1730	}	1898	}
1731		1899
1732	/* Client has no idea of ordering so lets not bother ordering it here.	1900	/* Client has no idea of ordering so lets not bother ordering it here.
1733	* It sure simplifies this function...	1901	* It sure simplifies this function...
1734	*/	1902	*/
1735	if (where->inv==NULL)	1903	if (where->inv == NULL)
1736	where->inv=op;	1904	where->inv = op;
1737	else {	1905	else
		1906	{
1738	op->below = where->inv;	1907	op->below = where->inv;
1739	op->below->above = op;	1908	op->below->above = op;
1740	where->inv = op;	1909	where->inv = op;
1741	}	1910	}
1742	return op;	1911	return op;
1743	}	1912	}
1744		1913
1745	/*	1914	/*
1746	* Checks if any objects has a move_type that matches objects	1915	* Checks if any objects has a move_type that matches objects
…		…
1761	* MSW 2001-07-08: Check all objects on space, not just those below	1930	* MSW 2001-07-08: Check all objects on space, not just those below
1762	* object being inserted. insert_ob_in_map may not put new objects	1931	* object being inserted. insert_ob_in_map may not put new objects
1763	* on top.	1932	* on top.
1764	*/	1933	*/
1765		1934
		1935	int
1766	int check_move_on (object *op, object *originator)	1936	check_move_on (object *op, object *originator)
1767	{	1937	{
1768	object *tmp;	1938	object *
1769	tag_t tag;	1939	tmp;
1770	mapstruct *m=op->map;	1940	tag_t
		1941	tag;
		1942	mapstruct *
		1943	m = op->map;
		1944	int
1771	int x=op->x, y=op->y;	1945	x = op->x, y = op->y;
1772	MoveType move_on, move_slow, move_block;
1773		1946
		1947	MoveType
		1948	move_on,
		1949	move_slow,
		1950	move_block;
		1951
1774	if(QUERY_FLAG(op,FLAG_NO_APPLY))	1952	if (QUERY_FLAG (op, FLAG_NO_APPLY))
1775	return 0;	1953	return 0;
1776		1954
1777	tag = op->count;	1955	tag = op->count;
1778		1956
1779	move_on = GET_MAP_MOVE_ON(op->map, op->x, op->y);	1957	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);
1780	move_slow = GET_MAP_MOVE_SLOW(op->map, op->x, op->y);	1958	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);
1781	move_block = GET_MAP_MOVE_BLOCK(op->map, op->x, op->y);	1959	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);
1782		1960
1783	/* if nothing on this space will slow op down or be applied,	1961	/* if nothing on this space will slow op down or be applied,
1784	* no need to do checking below. have to make sure move_type	1962	* no need to do checking below. have to make sure move_type
1785	* is set, as lots of objects don't have it set - we treat that	1963	* is set, as lots of objects don't have it set - we treat that
1786	* as walking.	1964	* as walking.
1787	*/	1965	*/
1788	if (op->move_type && !(op->move_type & move_on) && !(op->move_type & move_slow))	1966	if (op->move_type && !(op->move_type & move_on) && !(op->move_type & move_slow))
1789	return 0;	1967	return 0;
1790		1968
1791	/* This is basically inverse logic of that below - basically,	1969	/* This is basically inverse logic of that below - basically,
1792	* if the object can avoid the move on or slow move, they do so,	1970	* if the object can avoid the move on or slow move, they do so,
1793	* but can't do it if the alternate movement they are using is	1971	* but can't do it if the alternate movement they are using is
1794	* blocked. Logic on this seems confusing, but does seem correct.	1972	* blocked. Logic on this seems confusing, but does seem correct.
1795	*/	1973	*/
1796	if ((op->move_type & ~move_on & ~move_block) != 0 &&	1974	if ((op->move_type & ~move_on & ~move_block) != 0 && (op->move_type & ~move_slow & ~move_block) != 0)
1797	(op->move_type & ~move_slow & ~move_block) != 0) return 0;	1975	return 0;
1798		1976
1799	/* The objects have to be checked from top to bottom.	1977	/* The objects have to be checked from top to bottom.
1800	* Hence, we first go to the top:	1978	* Hence, we first go to the top:
1801	*/	1979	*/
1802		1980
1803	for (tmp=GET_MAP_OB(op->map, op->x, op->y); tmp!=NULL &&	1981	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL && tmp->above != NULL; tmp = tmp->above)
1804	tmp->above!=NULL; tmp=tmp->above) {	1982	{
1805	/* Trim the search when we find the first other spell effect	1983	/* Trim the search when we find the first other spell effect
1806	* this helps performance so that if a space has 50 spell objects,	1984	* this helps performance so that if a space has 50 spell objects,
1807	* we don't need to check all of them.	1985	* we don't need to check all of them.
1808	*/	1986	*/
1809	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG(tmp, FLAG_NO_PICK)) break;	1987	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG (tmp, FLAG_NO_PICK))
		1988	break;
		1989	}
		1990
		1991	for (; tmp; tmp = tmp->below)
1810	}	1992	{
1811	for(;tmp!=NULL; tmp=tmp->below) {	1993	if (tmp == op)
1812	if (tmp == op) continue; /* Can't apply yourself */	1994	continue; /* Can't apply yourself */
1813		1995
1814	/* Check to see if one of the movement types should be slowed down.	1996	/* Check to see if one of the movement types should be slowed down.
1815	* Second check makes sure that the movement types not being slowed	1997	* Second check makes sure that the movement types not being slowed
1816	* (~slow_move) is not blocked on this space - just because the	1998	* (~slow_move) is not blocked on this space - just because the
1817	* space doesn't slow down swimming (for example), if you can't actually	1999	* space doesn't slow down swimming (for example), if you can't actually
1818	* swim on that space, can't use it to avoid the penalty.	2000	* swim on that space, can't use it to avoid the penalty.
1819	*/	2001	*/
1820	if (!QUERY_FLAG(op, FLAG_WIZPASS)) {	2002	if (!QUERY_FLAG (op, FLAG_WIZPASS))
		2003	{
1821	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||	2004	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||
1822	((op->move_type & tmp->move_slow) &&
1823	(op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0)) {	2005	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))
		2006	{
1824		2007
1825	float diff;	2008	float
1826
1827	diff = tmp->move_slow_penalty*FABS(op->speed);	2009	diff = tmp->move_slow_penalty * FABS (op->speed);
		2010
1828	if (op->type == PLAYER) {	2011	if (op->type == PLAYER)
1829	if ((QUERY_FLAG(tmp, FLAG_IS_HILLY) && find_skill_by_number(op, SK_CLIMBING)) ||	2012	if ((QUERY_FLAG (tmp, FLAG_IS_HILLY) && find_skill_by_number (op, SK_CLIMBING)) ||
1830	(QUERY_FLAG(tmp, FLAG_IS_WOODED) && find_skill_by_number(op, SK_WOODSMAN))) {	2013	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))
1831	diff /= 4.0;	2014	diff /= 4.0;
1832	}	2015
1833	}
1834	op->speed_left -= diff;	2016	op->speed_left -= diff;
1835	}	2017	}
1836	}	2018	}
1837		2019
1838	/* Basically same logic as above, except now for actual apply. */	2020	/* Basically same logic as above, except now for actual apply. */
1839	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||	2021	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||
1840	((op->move_type & tmp->move_on) &&
1841	(op->move_type & ~tmp->move_on & ~tmp->move_block)==0)) {	2022	((op->move_type & tmp->move_on) && (op->move_type & ~tmp->move_on & ~tmp->move_block) == 0))
1842		2023	{
1843	move_apply(tmp, op, originator);	2024	move_apply (tmp, op, originator);
		2025
1844	if (was_destroyed (op, tag))	2026	if (was_destroyed (op, tag))
1845	return 1;	2027	return 1;
1846		2028
1847	/* what the person/creature stepped onto has moved the object	2029	/* what the person/creature stepped onto has moved the object
1848	* someplace new. Don't process any further - if we did,	2030	* someplace new. Don't process any further - if we did,
1849	* have a feeling strange problems would result.	2031	* have a feeling strange problems would result.
1850	*/	2032	*/
1851	if (op->map != m || op->x != x || op->y != y) return 0;	2033	if (op->map != m || op->x != x || op->y != y)
		2034	return 0;
1852	}	2035	}
1853	}	2036	}
		2037
1854	return 0;	2038	return 0;
1855	}	2039	}
1856		2040
1857	/*	2041	/*
1858	* present_arch(arch, map, x, y) searches for any objects with	2042	* present_arch(arch, map, x, y) searches for any objects with
1859	* a matching archetype at the given map and coordinates.	2043	* a matching archetype at the given map and coordinates.
1860	* The first matching object is returned, or NULL if none.	2044	* The first matching object is returned, or NULL if none.
1861	*/	2045	*/
1862		2046
		2047	object *
1863	object *present_arch(const archetype *at, mapstruct *m, int x, int y) {	2048	present_arch (const archetype *at, mapstruct *m, int x, int y)
		2049	{
1864	object *tmp;	2050	object *
		2051	tmp;
		2052
1865	if(m==NULL || out_of_map(m,x,y)) {	2053	if (m == NULL || out_of_map (m, x, y))
		2054	{
1866	LOG(llevError,"Present_arch called outside map.\n");	2055	LOG (llevError, "Present_arch called outside map.\n");
1867	return NULL;	2056	return NULL;
1868	}	2057	}
1869	for(tmp=GET_MAP_OB(m,x,y); tmp != NULL; tmp = tmp->above)	2058	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)
1870	if(tmp->arch == at)	2059	if (tmp->arch == at)
1871	return tmp;	2060	return tmp;
1872	return NULL;	2061	return NULL;
1873	}	2062	}
1874		2063
1875	/*	2064	/*
1876	* present(type, map, x, y) searches for any objects with	2065	* present(type, map, x, y) searches for any objects with
1877	* a matching type variable at the given map and coordinates.	2066	* a matching type variable at the given map and coordinates.
1878	* The first matching object is returned, or NULL if none.	2067	* The first matching object is returned, or NULL if none.
1879	*/	2068	*/
1880		2069
		2070	object *
1881	object *present(unsigned char type,mapstruct *m, int x,int y) {	2071	present (unsigned char type, mapstruct *m, int x, int y)
		2072	{
1882	object *tmp;	2073	object *
		2074	tmp;
		2075
1883	if(out_of_map(m,x,y)) {	2076	if (out_of_map (m, x, y))
		2077	{
1884	LOG(llevError,"Present called outside map.\n");	2078	LOG (llevError, "Present called outside map.\n");
1885	return NULL;	2079	return NULL;
1886	}	2080	}
1887	for(tmp=GET_MAP_OB(m,x,y);tmp!=NULL;tmp=tmp->above)	2081	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)
1888	if(tmp->type==type)	2082	if (tmp->type == type)
1889	return tmp;	2083	return tmp;
1890	return NULL;	2084	return NULL;
1891	}	2085	}
1892		2086
1893	/*	2087	/*
1894	* present_in_ob(type, object) searches for any objects with	2088	* present_in_ob(type, object) searches for any objects with
1895	* a matching type variable in the inventory of the given object.	2089	* a matching type variable in the inventory of the given object.
1896	* The first matching object is returned, or NULL if none.	2090	* The first matching object is returned, or NULL if none.
1897	*/	2091	*/
1898		2092
		2093	object *
1899	object *present_in_ob(unsigned char type, const object *op) {	2094	present_in_ob (unsigned char type, const object *op)
		2095	{
1900	object *tmp;	2096	object *
		2097	tmp;
		2098
1901	for(tmp=op->inv;tmp!=NULL;tmp=tmp->below)	2099	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)
1902	if(tmp->type==type)	2100	if (tmp->type == type)
1903	return tmp;	2101	return tmp;
1904	return NULL;	2102	return NULL;
1905	}	2103	}
1906		2104
1907	/*	2105	/*
…		…
1917	* the object name, not the archetype name. this is so that the	2115	* the object name, not the archetype name. this is so that the
1918	* spell code can use one object type (force), but change it's name	2116	* spell code can use one object type (force), but change it's name
1919	* to be unique.	2117	* to be unique.
1920	*/	2118	*/
1921		2119
		2120	object *
1922	object *present_in_ob_by_name(int type, const char *str, const object *op) {	2121	present_in_ob_by_name (int type, const char *str, const object *op)
		2122	{
1923	object *tmp;	2123	object *
		2124	tmp;
1924		2125
1925	for(tmp=op->inv; tmp!=NULL; tmp=tmp->below) {	2126	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)
		2127	{
1926	if ((type==-1 || tmp->type==type) && (!strcmp(str, tmp->name)))	2128	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))
1927	return tmp;	2129	return tmp;
1928	}	2130	}
1929	return NULL;	2131	return NULL;
1930	}	2132	}
1931		2133
1932	/*	2134	/*
1933	* present_arch_in_ob(archetype, object) searches for any objects with	2135	* present_arch_in_ob(archetype, object) searches for any objects with
1934	* a matching archetype in the inventory of the given object.	2136	* a matching archetype in the inventory of the given object.
1935	* The first matching object is returned, or NULL if none.	2137	* The first matching object is returned, or NULL if none.
1936	*/	2138	*/
1937		2139
		2140	object *
1938	object *present_arch_in_ob(const archetype *at, const object *op) {	2141	present_arch_in_ob (const archetype *at, const object *op)
		2142	{
1939	object *tmp;	2143	object *
		2144	tmp;
		2145
1940	for(tmp=op->inv;tmp!=NULL;tmp=tmp->below)	2146	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)
1941	if( tmp->arch == at)	2147	if (tmp->arch == at)
1942	return tmp;	2148	return tmp;
1943	return NULL;	2149	return NULL;
1944	}	2150	}
1945		2151
1946	/*	2152	/*
1947	* activate recursively a flag on an object inventory	2153	* activate recursively a flag on an object inventory
1948	*/	2154	*/
		2155	void
1949	void flag_inv(object*op, int flag){	2156	flag_inv (object *op, int flag)
		2157	{
1950	object *tmp;	2158	object *
		2159	tmp;
		2160
1951	if(op->inv)	2161	if (op->inv)
1952	for(tmp = op->inv; tmp != NULL; tmp = tmp->below){	2162	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)
		2163	{
1953	SET_FLAG(tmp, flag);	2164	SET_FLAG (tmp, flag);
1954	flag_inv(tmp,flag);	2165	flag_inv (tmp, flag);
1955	}	2166	}
1956	}/*	2167	} /*
1957	* desactivate recursively a flag on an object inventory	2168	* desactivate recursively a flag on an object inventory
1958	*/	2169	*/
		2170	void
1959	void unflag_inv(object*op, int flag){	2171	unflag_inv (object *op, int flag)
		2172	{
1960	object *tmp;	2173	object *
		2174	tmp;
		2175
1961	if(op->inv)	2176	if (op->inv)
1962	for(tmp = op->inv; tmp != NULL; tmp = tmp->below){	2177	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)
		2178	{
1963	CLEAR_FLAG(tmp, flag);	2179	CLEAR_FLAG (tmp, flag);
1964	unflag_inv(tmp,flag);	2180	unflag_inv (tmp, flag);
1965	}	2181	}
1966	}	2182	}
1967		2183
1968	/*	2184	/*
1969	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in	2185	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in
1970	* all it's inventory (recursively).	2186	* all it's inventory (recursively).
1971	* If checksums are used, a player will get set_cheat called for	2187	* If checksums are used, a player will get set_cheat called for
1972	* him/her-self and all object carried by a call to this function.	2188	* him/her-self and all object carried by a call to this function.
1973	*/	2189	*/
1974		2190
		2191	void
1975	void set_cheat(object *op) {	2192	set_cheat (object *op)
		2193	{
1976	SET_FLAG(op, FLAG_WAS_WIZ);	2194	SET_FLAG (op, FLAG_WAS_WIZ);
1977	flag_inv(op, FLAG_WAS_WIZ);	2195	flag_inv (op, FLAG_WAS_WIZ);
1978	}	2196	}
1979		2197
1980	/*	2198	/*
1981	* find_free_spot(object, map, x, y, start, stop) will search for	2199	* find_free_spot(object, map, x, y, start, stop) will search for
1982	* a spot at the given map and coordinates which will be able to contain	2200	* a spot at the given map and coordinates which will be able to contain
…		…
1997	* to know if the space in question will block the object. We can't use	2215	* to know if the space in question will block the object. We can't use
1998	* the archetype because that isn't correct if the monster has been	2216	* the archetype because that isn't correct if the monster has been
1999	* customized, changed states, etc.	2217	* customized, changed states, etc.
2000	*/	2218	*/
2001		2219
		2220	int
2002	int find_free_spot(const object *ob, mapstruct *m,int x,int y,int start,int stop) {	2221	find_free_spot (const object *ob, mapstruct *m, int x, int y, int start, int stop)
		2222	{
		2223	int
		2224	i,
2003	int i,index=0, flag;	2225	index = 0, flag;
		2226	static int
2004	static int altern[SIZEOFFREE];	2227	altern[SIZEOFFREE];
2005		2228
2006	for(i=start;i<stop;i++) {	2229	for (i = start; i < stop; i++)
		2230	{
2007	flag = ob_blocked(ob,m,x+freearr_x[i],y+freearr_y[i]);	2231	flag = ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]);
2008	if(!flag)	2232	if (!flag)
2009	altern[index++]=i;	2233	altern[index++] = i;
2010		2234
2011	/* Basically, if we find a wall on a space, we cut down the search size.	2235	/* Basically, if we find a wall on a space, we cut down the search size.
2012	* In this way, we won't return spaces that are on another side of a wall.	2236	* In this way, we won't return spaces that are on another side of a wall.
2013	* This mostly work, but it cuts down the search size in all directions -	2237	* This mostly work, but it cuts down the search size in all directions -
2014	* if the space being examined only has a wall to the north and empty	2238	* if the space being examined only has a wall to the north and empty
2015	* spaces in all the other directions, this will reduce the search space	2239	* spaces in all the other directions, this will reduce the search space
2016	* to only the spaces immediately surrounding the target area, and	2240	* to only the spaces immediately surrounding the target area, and
2017	* won't look 2 spaces south of the target space.	2241	* won't look 2 spaces south of the target space.
2018	*/	2242	*/
2019	else if ((flag & AB_NO_PASS) && maxfree[i]<stop)	2243	else if ((flag & AB_NO_PASS) && maxfree[i] < stop)
2020	stop=maxfree[i];	2244	stop = maxfree[i];
2021	}	2245	}
2022	if(!index) return -1;	2246	if (!index)
		2247	return -1;
2023	return altern[RANDOM()%index];	2248	return altern[RANDOM () % index];
2024	}	2249	}
2025		2250
2026	/*	2251	/*
2027	* find_first_free_spot(archetype, mapstruct, x, y) works like	2252	* find_first_free_spot(archetype, mapstruct, x, y) works like
2028	* find_free_spot(), but it will search max number of squares.	2253	* find_free_spot(), but it will search max number of squares.
2029	* But it will return the first available spot, not a random choice.	2254	* But it will return the first available spot, not a random choice.
2030	* Changed 0.93.2: Have it return -1 if there is no free spot available.	2255	* Changed 0.93.2: Have it return -1 if there is no free spot available.
2031	*/	2256	*/
2032		2257
		2258	int
2033	int find_first_free_spot(const object *ob, mapstruct *m,int x,int y) {	2259	find_first_free_spot (const object *ob, mapstruct *m, int x, int y)
		2260	{
		2261	int
2034	int i;	2262	i;
		2263
2035	for(i=0;i<SIZEOFFREE;i++) {	2264	for (i = 0; i < SIZEOFFREE; i++)
		2265	{
2036	if(!ob_blocked(ob,m,x+freearr_x[i],y+freearr_y[i]))	2266	if (!ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]))
2037	return i;	2267	return i;
2038	}	2268	}
2039	return -1;	2269	return -1;
2040	}	2270	}
2041		2271
2042	/*	2272	/*
2043	* The function permute(arr, begin, end) randomly reorders the array	2273	* The function permute(arr, begin, end) randomly reorders the array
2044	* arr[begin..end-1].	2274	* arr[begin..end-1].
2045	*/	2275	*/
		2276	static void
2046	static void permute(int *arr, int begin, int end)	2277	permute (int *arr, int begin, int end)
2047	{	2278	{
2048	int i, j, tmp, len;	2279	int
		2280	i,
		2281	j,
		2282	tmp,
		2283	len;
2049		2284
2050	len = end-begin;	2285	len = end - begin;
2051	for(i = begin; i < end; i++)	2286	for (i = begin; i < end; i++)
2052	{	2287	{
2053	j = begin+RANDOM()%len;	2288	j = begin + RANDOM () % len;
2054		2289
2055	tmp = arr[i];	2290	tmp = arr[i];
2056	arr[i] = arr[j];	2291	arr[i] = arr[j];
2057	arr[j] = tmp;	2292	arr[j] = tmp;
2058	}	2293	}
2059	}	2294	}
2060		2295
2061	/* new function to make monster searching more efficient, and effective!	2296	/* new function to make monster searching more efficient, and effective!
2062	* This basically returns a randomized array (in the passed pointer) of	2297	* This basically returns a randomized array (in the passed pointer) of
2063	* the spaces to find monsters. In this way, it won't always look for	2298	* the spaces to find monsters. In this way, it won't always look for
2064	* monsters to the north first. However, the size of the array passed	2299	* monsters to the north first. However, the size of the array passed
2065	* covers all the spaces, so within that size, all the spaces within	2300	* covers all the spaces, so within that size, all the spaces within
2066	* the 3x3 area will be searched, just not in a predictable order.	2301	* the 3x3 area will be searched, just not in a predictable order.
2067	*/	2302	*/
		2303	void
2068	void get_search_arr(int *search_arr)	2304	get_search_arr (int *search_arr)
2069	{	2305	{
		2306	int
2070	int i;	2307	i;
2071		2308
2072	for(i = 0; i < SIZEOFFREE; i++)	2309	for (i = 0; i < SIZEOFFREE; i++)
2073	{	2310	{
2074	search_arr[i] = i;	2311	search_arr[i] = i;
2075	}	2312	}
2076		2313
2077	permute(search_arr, 1, SIZEOFFREE1+1);	2314	permute (search_arr, 1, SIZEOFFREE1 + 1);
2078	permute(search_arr, SIZEOFFREE1+1, SIZEOFFREE2+1);	2315	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);
2079	permute(search_arr, SIZEOFFREE2+1, SIZEOFFREE);	2316	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);
2080	}	2317	}
2081		2318
2082	/*	2319	/*
2083	* find_dir(map, x, y, exclude) will search some close squares in the	2320	* find_dir(map, x, y, exclude) will search some close squares in the
2084	* given map at the given coordinates for live objects.	2321	* given map at the given coordinates for live objects.
…		…
2090	* is actually want is going to try and move there. We need this info	2327	* is actually want is going to try and move there. We need this info
2091	* because we have to know what movement the thing looking to move	2328	* because we have to know what movement the thing looking to move
2092	* there is capable of.	2329	* there is capable of.
2093	*/	2330	*/
2094		2331
		2332	int
2095	int find_dir(mapstruct *m, int x, int y, object *exclude) {	2333	find_dir (mapstruct *m, int x, int y, object *exclude)
		2334	{
		2335	int
		2336	i,
2096	int i,max=SIZEOFFREE, mflags;	2337	max = SIZEOFFREE, mflags;
		2338
2097	sint16 nx, ny;	2339	sint16 nx, ny;
2098	object *tmp;	2340	object *
		2341	tmp;
2099	mapstruct *mp;	2342	mapstruct *
		2343	mp;
		2344
2100	MoveType blocked, move_type;	2345	MoveType blocked, move_type;
2101		2346
2102	if (exclude && exclude->head) {	2347	if (exclude && exclude->head)
		2348	{
2103	exclude = exclude->head;	2349	exclude = exclude->head;
2104	move_type = exclude->move_type;	2350	move_type = exclude->move_type;
2105	} else {	2351	}
		2352	else
		2353	{
2106	/* If we don't have anything, presume it can use all movement types. */	2354	/* If we don't have anything, presume it can use all movement types. */
2107	move_type=MOVE_ALL;	2355	move_type = MOVE_ALL;
		2356	}
		2357
		2358	for (i = 1; i < max; i++)
2108	}	2359	{
2109
2110	for(i=1;i<max;i++) {
2111	mp = m;	2360	mp = m;
2112	nx = x + freearr_x[i];	2361	nx = x + freearr_x[i];
2113	ny = y + freearr_y[i];	2362	ny = y + freearr_y[i];
2114		2363
2115	mflags = get_map_flags(m, &mp, nx, ny, &nx, &ny);	2364	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);
2116	if (mflags & P_OUT_OF_MAP) {	2365	if (mflags & P_OUT_OF_MAP)
		2366	{
2117	max = maxfree[i];	2367	max = maxfree[i];
		2368	}
2118	} else {	2369	else
		2370	{
2119	blocked = GET_MAP_MOVE_BLOCK(mp, nx, ny);	2371	blocked = GET_MAP_MOVE_BLOCK (mp, nx, ny);
2120		2372
2121	if ((move_type & blocked) == move_type) {	2373	if ((move_type & blocked) == move_type)
		2374	{
2122	max=maxfree[i];	2375	max = maxfree[i];
		2376	}
2123	} else if (mflags & P_IS_ALIVE) {	2377	else if (mflags & P_IS_ALIVE)
		2378	{
2124	for (tmp=GET_MAP_OB(mp,nx,ny); tmp!= NULL; tmp=tmp->above) {	2379	for (tmp = GET_MAP_OB (mp, nx, ny); tmp != NULL; tmp = tmp->above)
2125	if ((QUERY_FLAG(tmp,FLAG_MONSTER) || tmp->type==PLAYER) &&	2380	{
2126	(tmp != exclude ||(tmp->head && tmp->head != exclude))) {	2381	if ((QUERY_FLAG (tmp, FLAG_MONSTER) || tmp->type == PLAYER) && (tmp != exclude || (tmp->head && tmp->head != exclude)))
		2382	{
2127	break;	2383	break;
2128	}	2384	}
2129	}	2385	}
2130	if(tmp) {	2386	if (tmp)
		2387	{
2131	return freedir[i];	2388	return freedir[i];
2132	}	2389	}
2133	}	2390	}
2134	}	2391	}
2135	}	2392	}
2136	return 0;	2393	return 0;
2137	}	2394	}
2138		2395
2139	/*	2396	/*
2140	* distance(object 1, object 2) will return the square of the	2397	* distance(object 1, object 2) will return the square of the
2141	* distance between the two given objects.	2398	* distance between the two given objects.
2142	*/	2399	*/
2143		2400
		2401	int
2144	int distance(const object *ob1, const object *ob2) {	2402	distance (const object *ob1, const object *ob2)
		2403	{
2145	int i;	2404	int
2146	i= (ob1->x - ob2->x)*(ob1->x - ob2->x)+	2405	i;
2147	(ob1->y - ob2->y)*(ob1->y - ob2->y);	2406
		2407	i = (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);
2148	return i;	2408	return i;
2149	}	2409	}
2150		2410
2151	/*	2411	/*
2152	* find_dir_2(delta-x,delta-y) will return a direction in which	2412	* find_dir_2(delta-x,delta-y) will return a direction in which
2153	* an object which has subtracted the x and y coordinates of another	2413	* an object which has subtracted the x and y coordinates of another
2154	* object, needs to travel toward it.	2414	* object, needs to travel toward it.
2155	*/	2415	*/
2156		2416
		2417	int
2157	int find_dir_2(int x, int y) {	2418	find_dir_2 (int x, int y)
		2419	{
2158	int q;	2420	int
		2421	q;
2159		2422
2160	if(y)	2423	if (y)
2161	q=x*100/y;	2424	q = x * 100 / y;
2162	else if (x)	2425	else if (x)
2163	q= -300*x;	2426	q = -300 * x;
2164	else	2427	else
2165	return 0;	2428	return 0;
2166		2429
2167	if(y>0) {	2430	if (y > 0)
		2431	{
2168	if(q < -242)	2432	if (q < -242)
2169	return 3 ;	2433	return 3;
2170	if (q < -41)	2434	if (q < -41)
2171	return 2 ;	2435	return 2;
2172	if (q < 41)	2436	if (q < 41)
2173	return 1 ;	2437	return 1;
2174	if (q < 242)	2438	if (q < 242)
2175	return 8 ;	2439	return 8;
2176	return 7 ;	2440	return 7;
2177	}	2441	}
2178		2442
2179	if (q < -242)	2443	if (q < -242)
2180	return 7 ;	2444	return 7;
2181	if (q < -41)	2445	if (q < -41)
2182	return 6 ;	2446	return 6;
2183	if (q < 41)	2447	if (q < 41)
2184	return 5 ;	2448	return 5;
2185	if (q < 242)	2449	if (q < 242)
2186	return 4 ;	2450	return 4;
2187		2451
2188	return 3 ;	2452	return 3;
2189	}	2453	}
2190		2454
2191	/*	2455	/*
2192	* absdir(int): Returns a number between 1 and 8, which represent	2456	* absdir(int): Returns a number between 1 and 8, which represent
2193	* the "absolute" direction of a number (it actually takes care of	2457	* the "absolute" direction of a number (it actually takes care of
2194	* "overflow" in previous calculations of a direction).	2458	* "overflow" in previous calculations of a direction).
2195	*/	2459	*/
2196		2460
		2461	int
2197	int absdir(int d) {	2462	absdir (int d)
2198	while(d<1) d+=8;	2463	{
2199	while(d>8) d-=8;	2464	while (d < 1)
		2465	d += 8;
		2466	while (d > 8)
		2467	d -= 8;
2200	return d;	2468	return d;
2201	}	2469	}
2202		2470
2203	/*	2471	/*
2204	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is	2472	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is
2205	* between two directions (which are expected to be absolute (see absdir())	2473	* between two directions (which are expected to be absolute (see absdir())
2206	*/	2474	*/
2207		2475
		2476	int
2208	int dirdiff(int dir1, int dir2) {	2477	dirdiff (int dir1, int dir2)
		2478	{
2209	int d;	2479	int
		2480	d;
		2481
2210	d = abs(dir1 - dir2);	2482	d = abs (dir1 - dir2);
2211	if(d>4)	2483	if (d > 4)
2212	d = 8 - d;	2484	d = 8 - d;
2213	return d;	2485	return d;
2214	}	2486	}
2215		2487
2216	/* peterm:	2488	/* peterm:
…		…
2221	* direction 4, 14, or 16 to get back to where we are.	2493	* direction 4, 14, or 16 to get back to where we are.
2222	* Moved from spell_util.c to object.c with the other related direction	2494	* Moved from spell_util.c to object.c with the other related direction
2223	* functions.	2495	* functions.
2224	*/	2496	*/
2225		2497
		2498	int
2226	int reduction_dir[SIZEOFFREE][3] = {	2499	reduction_dir[SIZEOFFREE][3] = {
2227	{0,0,0}, /* 0 */	2500	{0, 0, 0}, /* 0 */
2228	{0,0,0}, /* 1 */	2501	{0, 0, 0}, /* 1 */
2229	{0,0,0}, /* 2 */	2502	{0, 0, 0}, /* 2 */
2230	{0,0,0}, /* 3 */	2503	{0, 0, 0}, /* 3 */
2231	{0,0,0}, /* 4 */	2504	{0, 0, 0}, /* 4 */
2232	{0,0,0}, /* 5 */	2505	{0, 0, 0}, /* 5 */
2233	{0,0,0}, /* 6 */	2506	{0, 0, 0}, /* 6 */
2234	{0,0,0}, /* 7 */	2507	{0, 0, 0}, /* 7 */
2235	{0,0,0}, /* 8 */	2508	{0, 0, 0}, /* 8 */
2236	{8,1,2}, /* 9 */	2509	{8, 1, 2}, /* 9 */
2237	{1,2,-1}, /* 10 */	2510	{1, 2, -1}, /* 10 */
2238	{2,10,12}, /* 11 */	2511	{2, 10, 12}, /* 11 */
2239	{2,3,-1}, /* 12 */	2512	{2, 3, -1}, /* 12 */
2240	{2,3,4}, /* 13 */	2513	{2, 3, 4}, /* 13 */
2241	{3,4,-1}, /* 14 */	2514	{3, 4, -1}, /* 14 */
2242	{4,14,16}, /* 15 */	2515	{4, 14, 16}, /* 15 */
2243	{5,4,-1}, /* 16 */	2516	{5, 4, -1}, /* 16 */
2244	{4,5,6}, /* 17 */	2517	{4, 5, 6}, /* 17 */
2245	{6,5,-1}, /* 18 */	2518	{6, 5, -1}, /* 18 */
2246	{6,20,18}, /* 19 */	2519	{6, 20, 18}, /* 19 */
2247	{7,6,-1}, /* 20 */	2520	{7, 6, -1}, /* 20 */
2248	{6,7,8}, /* 21 */	2521	{6, 7, 8}, /* 21 */
2249	{7,8,-1}, /* 22 */	2522	{7, 8, -1}, /* 22 */
2250	{8,22,24}, /* 23 */	2523	{8, 22, 24}, /* 23 */
2251	{8,1,-1}, /* 24 */	2524	{8, 1, -1}, /* 24 */
2252	{24,9,10}, /* 25 */	2525	{24, 9, 10}, /* 25 */
2253	{9,10,-1}, /* 26 */	2526	{9, 10, -1}, /* 26 */
2254	{10,11,-1}, /* 27 */	2527	{10, 11, -1}, /* 27 */
2255	{27,11,29}, /* 28 */	2528	{27, 11, 29}, /* 28 */
2256	{11,12,-1}, /* 29 */	2529	{11, 12, -1}, /* 29 */
2257	{12,13,-1}, /* 30 */	2530	{12, 13, -1}, /* 30 */
2258	{12,13,14}, /* 31 */	2531	{12, 13, 14}, /* 31 */
2259	{13,14,-1}, /* 32 */	2532	{13, 14, -1}, /* 32 */
2260	{14,15,-1}, /* 33 */	2533	{14, 15, -1}, /* 33 */
2261	{33,15,35}, /* 34 */	2534	{33, 15, 35}, /* 34 */
2262	{16,15,-1}, /* 35 */	2535	{16, 15, -1}, /* 35 */
2263	{17,16,-1}, /* 36 */	2536	{17, 16, -1}, /* 36 */
2264	{18,17,16}, /* 37 */	2537	{18, 17, 16}, /* 37 */
2265	{18,17,-1}, /* 38 */	2538	{18, 17, -1}, /* 38 */
2266	{18,19,-1}, /* 39 */	2539	{18, 19, -1}, /* 39 */
2267	{41,19,39}, /* 40 */	2540	{41, 19, 39}, /* 40 */
2268	{19,20,-1}, /* 41 */	2541	{19, 20, -1}, /* 41 */
2269	{20,21,-1}, /* 42 */	2542	{20, 21, -1}, /* 42 */
2270	{20,21,22}, /* 43 */	2543	{20, 21, 22}, /* 43 */
2271	{21,22,-1}, /* 44 */	2544	{21, 22, -1}, /* 44 */
2272	{23,22,-1}, /* 45 */	2545	{23, 22, -1}, /* 45 */
2273	{45,47,23}, /* 46 */	2546	{45, 47, 23}, /* 46 */
2274	{23,24,-1}, /* 47 */	2547	{23, 24, -1}, /* 47 */
2275	{24,9,-1}}; /* 48 */	2548	{24, 9, -1}
		2549	}; /* 48 */
2276		2550
2277	/* Recursive routine to step back and see if we can	2551	/* Recursive routine to step back and see if we can
2278	* find a path to that monster that we found. If not,	2552	* find a path to that monster that we found. If not,
2279	* we don't bother going toward it. Returns 1 if we	2553	* we don't bother going toward it. Returns 1 if we
2280	* can see a direct way to get it	2554	* can see a direct way to get it
2281	* Modified to be map tile aware -.MSW	2555	* Modified to be map tile aware -.MSW
2282	*/	2556	*/
2283
2284		2557
		2558
		2559	int
2285	int can_see_monsterP(mapstruct *m, int x, int y,int dir) {	2560	can_see_monsterP (mapstruct *m, int x, int y, int dir)
		2561	{
2286	sint16 dx, dy;	2562	sint16 dx, dy;
		2563	int
2287	int mflags;	2564	mflags;
2288		2565
		2566	if (dir < 0)
2289	if(dir<0) return 0; /* exit condition: invalid direction */	2567	return 0; /* exit condition: invalid direction */
2290		2568
2291	dx = x + freearr_x[dir];	2569	dx = x + freearr_x[dir];
2292	dy = y + freearr_y[dir];	2570	dy = y + freearr_y[dir];
2293		2571
2294	mflags = get_map_flags(m, &m, dx, dy, &dx, &dy);	2572	mflags = get_map_flags (m, &m, dx, dy, &dx, &dy);
2295		2573
2296	/* This functional arguably was incorrect before - it was	2574	/* This functional arguably was incorrect before - it was
2297	* checking for P_WALL - that was basically seeing if	2575	* checking for P_WALL - that was basically seeing if
2298	* we could move to the monster - this is being more	2576	* we could move to the monster - this is being more
2299	* literal on if we can see it. To know if we can actually	2577	* literal on if we can see it. To know if we can actually
2300	* move to the monster, we'd need the monster passed in or	2578	* move to the monster, we'd need the monster passed in or
2301	* at least its move type.	2579	* at least its move type.
2302	*/	2580	*/
2303	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW)) return 0;	2581	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW))
		2582	return 0;
2304		2583
2305	/* yes, can see. */	2584	/* yes, can see. */
2306	if(dir < 9) return 1;	2585	if (dir < 9)
		2586	return 1;
2307	return can_see_monsterP(m, x, y, reduction_dir[dir][0]) |	2587	return can_see_monsterP (m, x, y, reduction_dir[dir][0]) |
2308	can_see_monsterP(m,x,y, reduction_dir[dir][1]) |	2588	can_see_monsterP (m, x, y, reduction_dir[dir][1]) | can_see_monsterP (m, x, y, reduction_dir[dir][2]);
2309	can_see_monsterP(m,x,y, reduction_dir[dir][2]);
2310	}	2589	}
2311		2590
2312		2591
2313		2592
2314	/*	2593	/*
2315	* can_pick(picker, item): finds out if an object is possible to be	2594	* can_pick(picker, item): finds out if an object is possible to be
2316	* picked up by the picker. Returnes 1 if it can be	2595	* picked up by the picker. Returnes 1 if it can be
2317	* picked up, otherwise 0.	2596	* picked up, otherwise 0.
2318	*	2597	*
…		…
2320	* core dumps if they do.	2599	* core dumps if they do.
2321	*	2600	*
2322	* Add a check so we can't pick up invisible objects (0.93.8)	2601	* Add a check so we can't pick up invisible objects (0.93.8)
2323	*/	2602	*/
2324		2603
		2604	int
2325	int can_pick(const object *who, const object *item) {	2605	can_pick (const object *who, const object *item)
		2606	{
2326	return /*QUERY_FLAG(who,FLAG_WIZ)||*/	2607	return /*QUERY_FLAG(who,FLAG_WIZ)|| */
2327	(item->weight>0&&!QUERY_FLAG(item,FLAG_NO_PICK)&&	2608	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&
2328	!QUERY_FLAG(item,FLAG_ALIVE)&&!item->invisible &&	2609	!QUERY_FLAG (item, FLAG_ALIVE) && !item->invisible && (who->type == PLAYER || item->weight < who->weight / 3));
2329	(who->type==PLAYER||item->weight<who->weight/3));
2330	}	2610	}
2331		2611
2332		2612
2333	/*	2613	/*
2334	* create clone from object to another	2614	* create clone from object to another
2335	*/	2615	*/
		2616	object *
2336	object *object_create_clone (object *asrc) {	2617	object_create_clone (object *asrc)
		2618	{
		2619	object *
2337	object *dst = NULL,*tmp,*src,*part,*prev, *item;	2620	dst = NULL, *tmp, *src, *part, *prev, *item;
2338		2621
		2622	if (!asrc)
2339	if(!asrc) return NULL;	2623	return NULL;
2340	src = asrc;	2624	src = asrc;
2341	if(src->head)	2625	if (src->head)
2342	src = src->head;	2626	src = src->head;
2343		2627
2344	prev = NULL;	2628	prev = NULL;
2345	for(part = src; part; part = part->more) {	2629	for (part = src; part; part = part->more)
		2630	{
2346	tmp = get_object();	2631	tmp = get_object ();
2347	copy_object(part,tmp);	2632	copy_object (part, tmp);
2348	tmp->x -= src->x;	2633	tmp->x -= src->x;
2349	tmp->y -= src->y;	2634	tmp->y -= src->y;
2350	if(!part->head) {	2635	if (!part->head)
		2636	{
2351	dst = tmp;	2637	dst = tmp;
2352	tmp->head = NULL;	2638	tmp->head = NULL;
		2639	}
2353	} else {	2640	else
		2641	{
2354	tmp->head = dst;	2642	tmp->head = dst;
2355	}	2643	}
2356	tmp->more = NULL;	2644	tmp->more = NULL;
2357	if(prev)	2645	if (prev)
2358	prev->more = tmp;	2646	prev->more = tmp;
2359	prev = tmp;	2647	prev = tmp;
2360	}	2648	}
		2649
2361	/*** copy inventory ***/	2650	/*** copy inventory ***/
2362	for(item = src->inv; item; item = item->below) {	2651	for (item = src->inv; item; item = item->below)
		2652	{
2363	(void) insert_ob_in_ob(object_create_clone(item),dst);	2653	(void) insert_ob_in_ob (object_create_clone (item), dst);
2364	}	2654	}
2365		2655
2366	return dst;	2656	return dst;
2367	}	2657	}
2368		2658
2369	/* return true if the object was destroyed, 0 otherwise */	2659	/* return true if the object was destroyed, 0 otherwise */
		2660	int
2370	int was_destroyed (const object *op, tag_t old_tag)	2661	was_destroyed (const object *op, tag_t old_tag)
2371	{	2662	{
2372	/* checking for FLAG_FREED isn't necessary, but makes this function more	2663	/* checking for FLAG_FREED isn't necessary, but makes this function more
2373	* robust */	2664	* robust */
2374	return op->count != old_tag || QUERY_FLAG (op, FLAG_FREED);	2665	return op->count != old_tag || QUERY_FLAG (op, FLAG_FREED);
2375	}	2666	}
2376		2667
2377	/* GROS - Creates an object using a string representing its content. */	2668	/* GROS - Creates an object using a string representing its content. */
		2669
2378	/* Basically, we save the content of the string to a temp file, then call */	2670	/* Basically, we save the content of the string to a temp file, then call */
		2671
2379	/* load_object on it. I admit it is a highly inefficient way to make things, */	2672	/* load_object on it. I admit it is a highly inefficient way to make things, */
		2673
2380	/* but it was simple to make and allows reusing the load_object function. */	2674	/* but it was simple to make and allows reusing the load_object function. */
		2675
2381	/* Remember not to use load_object_str in a time-critical situation. */	2676	/* Remember not to use load_object_str in a time-critical situation. */
		2677
2382	/* Also remember that multiparts objects are not supported for now. */	2678	/* Also remember that multiparts objects are not supported for now. */
2383		2679
		2680	object *
2384	object* load_object_str(const char *obstr)	2681	load_object_str (const char *obstr)
2385	{	2682	{
2386	object *op;	2683	object *
		2684	op;
		2685	char
2387	char filename[MAX_BUF];	2686	filename[MAX_BUF];
		2687
2388	sprintf(filename,"%s/cfloadobstr2044",settings.tmpdir);	2688	sprintf (filename, "%s/cfloadobstr2044", settings.tmpdir);
2389		2689
		2690	FILE *
2390	FILE *tempfile=fopen(filename,"w");	2691	tempfile = fopen (filename, "w");
		2692
2391	if (tempfile == NULL)	2693	if (tempfile == NULL)
2392	{	2694	{
2393	LOG(llevError,"Error - Unable to access load object temp file\n");	2695	LOG (llevError, "Error - Unable to access load object temp file\n");
2394	return NULL;	2696	return NULL;
2395	};	2697	}
		2698
2396	fprintf(tempfile,obstr);	2699	fprintf (tempfile, obstr);
2397	fclose(tempfile);	2700	fclose (tempfile);
2398		2701
2399	op=get_object();	2702	op = get_object ();
2400		2703
2401	object_thawer thawer (filename);	2704	object_thawer thawer (filename);
2402		2705
2403	if (thawer)	2706	if (thawer)
2404	load_object(thawer,op,0);	2707	load_object (thawer, op, 0);
2405		2708
2406	LOG(llevDebug," load str completed, object=%s\n", &op->name);	2709	LOG (llevDebug, " load str completed, object=%s\n", &op->name);
2407	CLEAR_FLAG(op,FLAG_REMOVED);	2710	CLEAR_FLAG (op, FLAG_REMOVED);
2408		2711
2409	return op;	2712	return op;
2410	}	2713	}
2411		2714
2412	/* This returns the first object in who's inventory that	2715	/* This returns the first object in who's inventory that
2413	* has the same type and subtype match.	2716	* has the same type and subtype match.
2414	* returns NULL if no match.	2717	* returns NULL if no match.
2415	*/	2718	*/
		2719	object *
2416	object *find_obj_by_type_subtype(const object *who, int type, int subtype)	2720	find_obj_by_type_subtype (const object *who, int type, int subtype)
2417	{	2721	{
2418	object *tmp;	2722	object *
		2723	tmp;
2419		2724
2420	for (tmp=who->inv; tmp; tmp=tmp->below)	2725	for (tmp = who->inv; tmp; tmp = tmp->below)
2421	if (tmp->type == type && tmp->subtype == subtype) return tmp;	2726	if (tmp->type == type && tmp->subtype == subtype)
		2727	return tmp;
2422		2728
2423	return NULL;	2729	return NULL;
2424	}	2730	}
2425		2731
2426	/* If ob has a field named key, return the link from the list,	2732	/* If ob has a field named key, return the link from the list,
2427	* otherwise return NULL.	2733	* otherwise return NULL.
2428	*	2734	*
2429	* key must be a passed in shared string - otherwise, this won't	2735	* key must be a passed in shared string - otherwise, this won't
2430	* do the desired thing.	2736	* do the desired thing.
2431	*/	2737	*/
		2738	key_value *
2432	key_value * get_ob_key_link(const object * ob, const char * key) {	2739	get_ob_key_link (const object *ob, const char *key)
		2740	{
2433	key_value * link;	2741	key_value *
2434		2742	link;
		2743
2435	for (link = ob->key_values; link != NULL; link = link->next) {	2744	for (link = ob->key_values; link != NULL; link = link->next)
		2745	{
2436	if (link->key == key) {	2746	if (link->key == key)
		2747	{
2437	return link;	2748	return link;
2438	}	2749	}
2439	}
2440		2750	}
		2751
2441	return NULL;	2752	return NULL;
2442	}	2753	}
2443		2754
2444	/*	2755	/*
2445	* Returns the value of op has an extra_field for key, or NULL.	2756	* Returns the value of op has an extra_field for key, or NULL.
2446	*	2757	*
2447	* The argument doesn't need to be a shared string.	2758	* The argument doesn't need to be a shared string.
2448	*	2759	*
2449	* The returned string is shared.	2760	* The returned string is shared.
2450	*/	2761	*/
		2762	const char *
2451	const char * get_ob_key_value(const object * op, const char * const key) {	2763	get_ob_key_value (const object *op, const char *const key)
		2764	{
2452	key_value * link;	2765	key_value *link;
2453	const char * canonical_key;	2766	shstr_cmp canonical_key (key);
		2767
		2768	if (!canonical_key)
2454		2769	{
2455	canonical_key = shstr::find (key);
2456
2457	if (canonical_key == NULL) {
2458	/* 1. There being a field named key on any object	2770	/* 1. There being a field named key on any object
2459	* implies there'd be a shared string to find.	2771	* implies there'd be a shared string to find.
2460	* 2. Since there isn't, no object has this field.	2772	* 2. Since there isn't, no object has this field.
2461	* 3. Therefore, *this* object doesn't have this field.	2773	* 3. Therefore, *this* object doesn't have this field.
2462	*/	2774	*/
2463	return NULL;	2775	return 0;
2464	}	2776	}
2465		2777
2466	/* This is copied from get_ob_key_link() above -	2778	/* This is copied from get_ob_key_link() above -
2467	* only 4 lines, and saves the function call overhead.	2779	* only 4 lines, and saves the function call overhead.
2468	*/	2780	*/
2469	for (link = op->key_values; link != NULL; link = link->next) {	2781	for (link = op->key_values; link; link = link->next)
2470	if (link->key == canonical_key) {	2782	if (link->key == canonical_key)
2471	return link->value;	2783	return link->value;
2472	}	2784
2473	}	2785	return 0;
2474	return NULL;
2475	}	2786	}
2476		2787
2477		2788
2478	/*	2789	/*
2479	* Updates the canonical_key in op to value.	2790	* Updates the canonical_key in op to value.
…		…
2483	* Unless add_key is TRUE, it won't add fields, only change the value of existing	2794	* Unless add_key is TRUE, it won't add fields, only change the value of existing
2484	* keys.	2795	* keys.
2485	*	2796	*
2486	* Returns TRUE on success.	2797	* Returns TRUE on success.
2487	*/	2798	*/
		2799	int
2488	int set_ob_key_value_s(object * op, const shstr &canonical_key, const char * value, int add_key) {	2800	set_ob_key_value_s (object *op, const shstr & canonical_key, const char *value, int add_key)
		2801	{
		2802	key_value *
2489	key_value * field = NULL, *last=NULL;	2803	field = NULL, *last = NULL;
2490		2804
2491	for (field=op->key_values; field != NULL; field=field->next) {	2805	for (field = op->key_values; field != NULL; field = field->next)
		2806	{
2492	if (field->key != canonical_key) {	2807	if (field->key != canonical_key)
		2808	{
2493	last = field;	2809	last = field;
2494	continue;	2810	continue;
2495	}	2811	}
2496		2812
2497	if (value)	2813	if (value)
2498	field->value = value;	2814	field->value = value;
2499	else {	2815	else
		2816	{
2500	/* Basically, if the archetype has this key set,	2817	/* Basically, if the archetype has this key set,
2501	* we need to store the null value so when we save	2818	* we need to store the null value so when we save
2502	* it, we save the empty value so that when we load,	2819	* it, we save the empty value so that when we load,
2503	* we get this value back again.	2820	* we get this value back again.
2504	*/	2821	*/
2505	if (get_ob_key_link (&op->arch->clone, canonical_key))	2822	if (get_ob_key_link (&op->arch->clone, canonical_key))
2506	field->value = 0;	2823	field->value = 0;
		2824	else
		2825	{
		2826	if (last)
		2827	last->next = field->next;
2507	else	2828	else
2508	{
2509	if (last) last->next = field->next;
2510	else op->key_values = field->next;	2829	op->key_values = field->next;
2511		2830
2512	delete field;	2831	delete field;
2513	}	2832	}
2514	}	2833	}
2515	return TRUE;	2834	return TRUE;
2516	}	2835	}
2517	/* IF we get here, key doesn't exist */	2836	/* IF we get here, key doesn't exist */
2518		2837
2519	/* No field, we'll have to add it. */	2838	/* No field, we'll have to add it. */
		2839
		2840	if (!add_key)
2520		2841	{
2521	if (!add_key) {
2522	return FALSE;	2842	return FALSE;
2523	}	2843	}
2524	/* There isn't any good reason to store a null	2844	/* There isn't any good reason to store a null
2525	* value in the key/value list. If the archetype has	2845	* value in the key/value list. If the archetype has
2526	* this key, then we should also have it, so shouldn't	2846	* this key, then we should also have it, so shouldn't
2527	* be here. If user wants to store empty strings,	2847	* be here. If user wants to store empty strings,
2528	* should pass in ""	2848	* should pass in ""
2529	*/	2849	*/
2530	if (value == NULL) return TRUE;	2850	if (value == NULL)
2531
2532	field = new key_value;
2533
2534	field->key = canonical_key;
2535	field->value = value;
2536	/* Usual prepend-addition. */
2537	field->next = op->key_values;
2538	op->key_values = field;
2539
2540	return TRUE;	2851	return TRUE;
		2852
		2853	field = new key_value;
		2854
		2855	field->key = canonical_key;
		2856	field->value = value;
		2857	/* Usual prepend-addition. */
		2858	field->next = op->key_values;
		2859	op->key_values = field;
		2860
		2861	return TRUE;
2541	}	2862	}
2542		2863
2543	/*	2864	/*
2544	* Updates the key in op to value.	2865	* Updates the key in op to value.
2545	*	2866	*
…		…
2547	* and not add new ones.	2868	* and not add new ones.
2548	* In general, should be little reason FALSE is ever passed in for add_key	2869	* In general, should be little reason FALSE is ever passed in for add_key
2549	*	2870	*
2550	* Returns TRUE on success.	2871	* Returns TRUE on success.
2551	*/	2872	*/
		2873	int
2552	int set_ob_key_value(object * op, const char *key, const char * value, int add_key)	2874	set_ob_key_value (object *op, const char *key, const char *value, int add_key)
2553	{	2875	{
2554	shstr key_ (key);	2876	shstr key_ (key);
		2877
2555	return set_ob_key_value_s (op, key_, value, add_key);	2878	return set_ob_key_value_s (op, key_, value, add_key);
2556	}	2879	}
		2880
		2881	object::depth_iterator::depth_iterator (object *container)
		2882	: iterator_base (container)
		2883	{
		2884	while (item->inv)
		2885	item = item->inv;
		2886	}
		2887
		2888	void
		2889	object::depth_iterator::next ()
		2890	{
		2891	if (item->below)
		2892	{
		2893	item = item->below;
		2894
		2895	while (item->inv)
		2896	item = item->inv;
		2897	}
		2898	else
		2899	item = item->env;
		2900	}
		2901
		2902	// return a suitable string describing an objetc in enough detail to find it
		2903	const char *
		2904	object::debug_desc (char *info) const
		2905	{
		2906	char info2[256 * 3];
		2907	char *p = info;
		2908
		2909	p += snprintf (p, 256, "%d=\"%s%s%s\"",
		2910	count,
		2911	&name,
		2912	title ? " " : "",
		2913	title ? (const char *)title : "");
		2914
		2915	if (env)
		2916	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));
		2917
		2918	if (map)
		2919	p += snprintf (p, 256, "(on %s@%d+%d)", map->path, x, y);
		2920
		2921	return info;
		2922	}
		2923
		2924	const char *
		2925	object::debug_desc () const
		2926	{
		2927	static char info[256 * 3];
		2928	return debug_desc (info);
		2929	}
		2930

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