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Comparing deliantra/server/common/object.C (file contents):
Revision 1.21 by root, Sat Sep 9 21:48:28 2006 UTC vs.
Revision 1.100 by root, Mon Jan 1 12:28:45 2007 UTC

1	/*
2	* static char *rcsid_object_c =
3	* "$Id: object.C,v 1.21 2006/09/09 21:48:28 root Exp $";
4	*/
5
6	/*	1	/*
7	CrossFire, A Multiplayer game for X-windows	2	CrossFire, A Multiplayer game for X-windows
8		3
9	Copyright (C) 2001 Mark Wedel & Crossfire Development Team	4	Copyright (C) 2001 Mark Wedel & Crossfire Development Team
10	Copyright (C) 1992 Frank Tore Johansen	5	Copyright (C) 1992 Frank Tore Johansen
…		…
21		16
22	You should have received a copy of the GNU General Public License	17	You should have received a copy of the GNU General Public License
23	along with this program; if not, write to the Free Software	18	along with this program; if not, write to the Free Software
24	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.	19	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
25		20
26	The authors can be reached via e-mail at crossfire-devel@real-time.com	21	The authors can be reached via e-mail at <crossfire@schmorp.de>
27	*/	22	*/
28		23
29	/* Eneq(@csd.uu.se): Added weight-modifiers in environment of objects.	24	/* Eneq(@csd.uu.se): Added weight-modifiers in environment of objects.
30	sub/add_weight will transcend the environment updating the carrying	25	sub/add_weight will transcend the environment updating the carrying
31	variable. */	26	variable. */
32	#include <global.h>	27	#include <global.h>
33	#ifndef WIN32 /* ---win32 exclude headers */
34	#include <stdio.h>	28	#include <stdio.h>
35	#include <sys/types.h>	29	#include <sys/types.h>
36	#include <sys/uio.h>	30	#include <sys/uio.h>
37	#endif /* win32 */
38	#include <object.h>	31	#include <object.h>
39	#include <funcpoint.h>	32	#include <funcpoint.h>
40	#include <skills.h>
41	#include <loader.h>	33	#include <loader.h>
		34
		35	#include <bitset>
		36
42	int nrofallocobjects = 0;	37	int nrofallocobjects = 0;
		38	static UUID uuid;
		39	const uint64 UUID_SKIP = 1<<19;
43		40
44	object *objects; /* Pointer to the list of used objects */
45	object *active_objects; /* List of active objects that need to be processed */	41	object *active_objects; /* List of active objects that need to be processed */
46		42
47	short freearr_x[SIZEOFFREE]=	43	short freearr_x[SIZEOFFREE] = { 0, 0, 1, 1, 1, 0, -1, -1, -1, 0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2, -2, -2, -2, -1,
48	{0,0,1,1,1,0,-1,-1,-1,0,1,2,2,2,2,2,1,0,-1,-2,-2,-2,-2,-2,-1,
49	0,1,2,3,3,3,3,3,3,3,2,1,0,-1,-2,-3,-3,-3,-3,-3,-3,-3,-2,-1};	44	0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3, -3, -3, -3, -3, -2, -1
50	short freearr_y[SIZEOFFREE]=	45	};
51	{0,-1,-1,0,1,1,1,0,-1,-2,-2,-2,-1,0,1,2,2,2,2,2,1,0,-1,-2,-2,	46	short freearr_y[SIZEOFFREE] = { 0, -1, -1, 0, 1, 1, 1, 0, -1, -2, -2, -2, -1, 0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2,
52	-3,-3,-3,-3,-2,-1,0,1,2,3,3,3,3,3,3,3,2,1,0,-1,-2,-3,-3,-3};	47	-3, -3, -3, -3, -2, -1, 0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3
53	int maxfree[SIZEOFFREE]=	48	};
54	{0,9,10,13,14,17,18,21,22,25,26,27,30,31,32,33,36,37,39,39,42,43,44,45,	49	int maxfree[SIZEOFFREE] = { 0, 9, 10, 13, 14, 17, 18, 21, 22, 25, 26, 27, 30, 31, 32, 33, 36, 37, 39, 39, 42, 43, 44, 45,
55	48,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49};	50	48, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49
		51	};
56	int freedir[SIZEOFFREE]= {	52	int freedir[SIZEOFFREE] = {
57	0,1,2,3,4,5,6,7,8,1,2,2,2,3,4,4,4,5,6,6,6,7,8,8,8,	53	0, 1, 2, 3, 4, 5, 6, 7, 8, 1, 2, 2, 2, 3, 4, 4, 4, 5, 6, 6, 6, 7, 8, 8, 8,
58	1,2,2,2,2,2,3,4,4,4,4,4,5,6,6,6,6,6,7,8,8,8,8,8};	54	1, 2, 2, 2, 2, 2, 3, 4, 4, 4, 4, 4, 5, 6, 6, 6, 6, 6, 7, 8, 8, 8, 8, 8
		55	};
		56
		57	static void
		58	write_uuid (void)
		59	{
		60	char filename1[MAX_BUF], filename2[MAX_BUF];
		61
		62	sprintf (filename1, "%s/uuid", settings.localdir);
		63	sprintf (filename2, "%s/uuid~", settings.localdir);
		64
		65	FILE *fp;
		66
		67	if (!(fp = fopen (filename2, "w")))
		68	{
		69	LOG (llevError, "ERROR: cannot open %s for writing, unable to write UUID!\n", filename2);
		70	return;
		71	}
		72
		73	fprintf (fp, "<1,%llx>\n", (unsigned long long)uuid.seq + UUID_SKIP * 2);
		74	fclose (fp);
		75	rename (filename2, filename1);
		76	}
		77
		78	static void
		79	read_uuid (void)
		80	{
		81	char filename[MAX_BUF];
		82
		83	sprintf (filename, "%s/uuid", settings.localdir);
		84
		85	FILE *fp;
		86
		87	if (!(fp = fopen (filename, "r")))
		88	{
		89	if (errno == ENOENT)
		90	{
		91	LOG (llevInfo, "RESET uid to 1\n");
		92	uuid.seq = 0;
		93	write_uuid ();
		94	return;
		95	}
		96
		97	LOG (llevError, "FATAL: cannot open %s for reading!\n", filename);
		98	_exit (1);
		99	}
		100
		101	int version;
		102	unsigned long long uid;
		103	if (2 != fscanf (fp, "<%d,%llx>\n", &version, &uid) || version != 1)
		104	{
		105	LOG (llevError, "FATAL: error reading uid from %s!\n", filename);
		106	_exit (1);
		107	}
		108
		109	uuid.seq = uid;
		110	write_uuid ();
		111	LOG (llevDebug, "read UID: %" PRId64 "\n", uid);
		112	fclose (fp);
		113	}
		114
		115	UUID
		116	gen_uuid ()
		117	{
		118	UUID uid;
		119
		120	uid.seq = ++uuid.seq;
		121
		122	if (!(uuid.seq & (UUID_SKIP - 1)))
		123	write_uuid ();
		124
		125	return uid;
		126	}
		127
		128	void
		129	init_uuid ()
		130	{
		131	read_uuid ();
		132	}
59		133
60	/* Returns TRUE if every key_values in wants has a partner with the same value in has. */	134	/* Returns TRUE if every key_values in wants has a partner with the same value in has. */
		135	static int
61	static int compare_ob_value_lists_one(const object * wants, const object * has) {	136	compare_ob_value_lists_one (const object *wants, const object *has)
		137	{
62	key_value * wants_field;	138	key_value *wants_field;
63		139
64	/* n-squared behaviour (see get_ob_key_link()), but I'm hoping both	140	/* n-squared behaviour (see get_ob_key_link()), but I'm hoping both
65	* objects with lists are rare, and lists stay short. If not, use a	141	* objects with lists are rare, and lists stay short. If not, use a
66	* different structure or at least keep the lists sorted...	142	* different structure or at least keep the lists sorted...
67	*/	143	*/
68		144
69	/* For each field in wants, */	145	/* For each field in wants, */
70	for (wants_field = wants->key_values; wants_field != NULL; wants_field = wants_field->next) {	146	for (wants_field = wants->key_values; wants_field; wants_field = wants_field->next)
		147	{
71	key_value * has_field;	148	key_value *has_field;
72		149
73	/* Look for a field in has with the same key. */	150	/* Look for a field in has with the same key. */
74	has_field = get_ob_key_link(has, wants_field->key);	151	has_field = get_ob_key_link (has, wants_field->key);
		152
		153	if (has_field == NULL)
75		154	{
76	if (has_field == NULL) {
77	/* No field with that name. */	155	/* No field with that name. */
78	return FALSE;	156	return FALSE;
79	}
80		157	}
		158
81	/* Found the matching field. */	159	/* Found the matching field. */
82	if (has_field->value != wants_field->value) {	160	if (has_field->value != wants_field->value)
		161	{
83	/* Values don't match, so this half of the comparison is false. */	162	/* Values don't match, so this half of the comparison is false. */
84	return FALSE;	163	return FALSE;
85	}	164	}
86		165
87	/* If we get here, we found a match. Now for the next field in wants. */	166	/* If we get here, we found a match. Now for the next field in wants. */
88	}
89		167	}
		168
90	/* If we get here, every field in wants has a matching field in has. */	169	/* If we get here, every field in wants has a matching field in has. */
91	return TRUE;	170	return TRUE;
92	}	171	}
93		172
94	/* Returns TRUE if ob1 has the same key_values as ob2. */	173	/* Returns TRUE if ob1 has the same key_values as ob2. */
		174	static int
95	static int compare_ob_value_lists(const object * ob1, const object * ob2) {	175	compare_ob_value_lists (const object *ob1, const object *ob2)
		176	{
96	/* However, there may be fields in has which aren't partnered in wants,	177	/* However, there may be fields in has which aren't partnered in wants,
97	* so we need to run the comparison *twice*. :(	178	* so we need to run the comparison *twice*. :(
98	*/	179	*/
99	return compare_ob_value_lists_one(ob1, ob2) && compare_ob_value_lists_one(ob2, ob1);	180	return compare_ob_value_lists_one (ob1, ob2) && compare_ob_value_lists_one (ob2, ob1);
100	}	181	}
101		182
102	/* Function examines the 2 objects given to it, and returns true if	183	/* Function examines the 2 objects given to it, and returns true if
103	* they can be merged together.	184	* they can be merged together.
104	*	185	*
105	* Note that this function appears a lot longer than the macro it	186	* Note that this function appears a lot longer than the macro it
106	* replaces - this is mostly for clarity - a decent compiler should hopefully	187	* replaces - this is mostly for clarity - a decent compiler should hopefully
107	* reduce this to the same efficiency.	188	* reduce this to the same efficiency.
108	*	189	*
109	* Check nrof variable *before* calling CAN_MERGE()	190	* Check nrof variable *before* calling can_merge()
110	*	191	*
111	* Improvements made with merge: Better checking on potion, and also	192	* Improvements made with merge: Better checking on potion, and also
112	* check weight	193	* check weight
113	*/	194	*/
114
115	bool
116	object::can_merge (object *ob1, object *ob2)	195	bool object::can_merge_slow (object *ob1, object *ob2)
117	{	196	{
118	/* A couple quicksanity checks */	197	/* A couple quicksanity checks */
119	if ((ob1 == ob2) || (ob1->type != ob2->type))	198	if (ob1 == ob2
		199	|| ob1->type != ob2->type
		200	|| ob1->speed != ob2->speed
		201	|| ob1->value != ob2->value
		202	|| ob1->name != ob2->name)
120	return 0;	203	return 0;
121		204
122	if (ob1->speed != ob2->speed)	205	//TODO: this ain't working well, use nicer and correct overflow check
123	return 0;
124
125	/* Do not merge objects if nrof would overflow. We use 1UL<<31 since that	206	/* Do not merge objects if nrof would overflow. We use 1UL<<31 since that
126	* value could not be stored in a sint32 (which unfortunately sometimes is	207	* value could not be stored in a sint32 (which unfortunately sometimes is
127	* used to store nrof).	208	* used to store nrof).
128	*/	209	*/
129	if (ob1->nrof + ob2->nrof >= 1UL << 31)	210	if (ob1->nrof + ob2->nrof >= 1UL << 31)
…		…
139	SET_FLAG (ob1, FLAG_BEEN_APPLIED);	220	SET_FLAG (ob1, FLAG_BEEN_APPLIED);
140		221
141	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))	222	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))
142	SET_FLAG (ob2, FLAG_BEEN_APPLIED);	223	SET_FLAG (ob2, FLAG_BEEN_APPLIED);
143		224
144		225	if ((ob1->flag ^ ob2->flag).reset (FLAG_INV_LOCKED).reset (FLAG_CLIENT_SENT).any ()
145	/* the 0x400000 on flags2 is FLAG_INV_LOCK. I don't think something	226	|| ob1->arch != ob2->arch
146	* being locked in inventory should prevent merging.
147	* 0x4 in flags3 is CLIENT_SENT
148	*/
149	if ((ob1->arch != ob2->arch) ||
150	(ob1->flags[0] != ob2->flags[0]) ||
151	(ob1->flags[1] != ob2->flags[1]) ||
152	((ob1->flags[2] & ~0x400000) != (ob2->flags[2] & ~0x400000)) ||
153	((ob1->flags[3] & ~0x4) != (ob2->flags[3] & ~0x4)) ||
154	(ob1->name != ob2->name) ||	227	|| ob1->name != ob2->name
155	(ob1->title != ob2->title) ||	228	|| ob1->title != ob2->title
156	(ob1->msg != ob2->msg) ||	229	|| ob1->msg != ob2->msg
157	(ob1->weight != ob2->weight) ||	230	|| ob1->weight != ob2->weight
158	(memcmp (&ob1->resist, &ob2->resist, sizeof (ob1->resist)) != 0) ||	231	|| memcmp (&ob1->resist, &ob2->resist, sizeof (ob1->resist))
159	(memcmp (&ob1->stats, &ob2->stats, sizeof (ob1->stats)) != 0) ||	232	|| memcmp (&ob1->stats , &ob2->stats , sizeof (ob1->stats) )
160	(ob1->attacktype != ob2->attacktype) ||	233	|| ob1->attacktype != ob2->attacktype
161	(ob1->magic != ob2->magic) ||	234	|| ob1->magic != ob2->magic
162	(ob1->slaying != ob2->slaying) ||	235	|| ob1->slaying != ob2->slaying
163	(ob1->skill != ob2->skill) ||	236	|| ob1->skill != ob2->skill
164	(ob1->value != ob2->value) ||	237	|| ob1->value != ob2->value
165	(ob1->animation_id != ob2->animation_id) ||	238	|| ob1->animation_id != ob2->animation_id
166	(ob1->client_type != ob2->client_type) ||	239	|| ob1->client_type != ob2->client_type
167	(ob1->materialname != ob2->materialname) ||	240	|| ob1->materialname != ob2->materialname
168	(ob1->lore != ob2->lore) ||	241	|| ob1->lore != ob2->lore
169	(ob1->subtype != ob2->subtype) ||	242	|| ob1->subtype != ob2->subtype
170	(ob1->move_type != ob2->move_type) ||	243	|| ob1->move_type != ob2->move_type
171	(ob1->move_block != ob2->move_block) ||	244	|| ob1->move_block != ob2->move_block
172	(ob1->move_allow != ob2->move_allow) ||	245	|| ob1->move_allow != ob2->move_allow
173	(ob1->move_on != ob2->move_on) ||	246	|| ob1->move_on != ob2->move_on
174	(ob1->move_off != ob2->move_off) ||	247	|| ob1->move_off != ob2->move_off
175	(ob1->move_slow != ob2->move_slow) ||	248	|| ob1->move_slow != ob2->move_slow
176	(ob1->move_slow_penalty != ob2->move_slow_penalty))	249	|| ob1->move_slow_penalty != ob2->move_slow_penalty)
177	return 0;	250	return 0;
178		251
179	/* This is really a spellbook check - really, we should	252	/* This is really a spellbook check - really, we should
180	* check all objects in the inventory.	253	* check all objects in the inventory.
181	*/	254	*/
182	if (ob1->inv || ob2->inv)	255	if (ob1->inv || ob2->inv)
183	{	256	{
184	/* if one object has inventory but the other doesn't, not equiv */	257	/* if one object has inventory but the other doesn't, not equiv */
185	if ((ob1->inv && !ob2->inv) || (ob2->inv && !ob1->inv))	258	if ((ob1->inv && !ob2->inv) || (ob2->inv && !ob1->inv))
186	return 0;	259	return 0;
187		260
188	/* Now check to see if the two inventory objects could merge */	261	/* Now check to see if the two inventory objects could merge */
189	if (!CAN_MERGE (ob1->inv, ob2->inv))	262	if (!object::can_merge (ob1->inv, ob2->inv))
190	return 0;	263	return 0;
191		264
192	/* inventory ok - still need to check rest of this object to see	265	/* inventory ok - still need to check rest of this object to see
193	* if it is valid.	266	* if it is valid.
194	*/	267	*/
195	}	268	}
…		…
203		276
204	/* Note sure why the following is the case - either the object has to	277	/* Note sure why the following is the case - either the object has to
205	* be animated or have a very low speed. Is this an attempted monster	278	* be animated or have a very low speed. Is this an attempted monster
206	* check?	279	* check?
207	*/	280	*/
208	if (!QUERY_FLAG (ob1, FLAG_ANIMATE)	281	if (!QUERY_FLAG (ob1, FLAG_ANIMATE) && ob1->has_active_speed ())
209	&& FABS ((ob1)->speed) > MIN_ACTIVE_SPEED)
210	return 0;	282	return 0;
211		283
212	switch (ob1->type)	284	switch (ob1->type)
213	{	285	{
214	case SCROLL:	286	case SCROLL:
215	if (ob1->level != ob2->level)	287	if (ob1->level != ob2->level)
216	return 0;	288	return 0;
217	break;	289	break;
218	}	290	}
219		291
220	if (ob1->key_values != NULL || ob2->key_values != NULL)	292	if (ob1->key_values != NULL || ob2->key_values != NULL)
221	{	293	{
222	/* At least one of these has key_values. */	294	/* At least one of these has key_values. */
223	if ((ob1->key_values == NULL) != (ob2->key_values == NULL))	295	if ((ob1->key_values == NULL) != (ob2->key_values == NULL))
224	/* One has fields, but the other one doesn't. */	296	/* One has fields, but the other one doesn't. */
225	return 0;	297	return 0;
226	else if (!compare_ob_value_lists (ob1, ob2))	298	else if (!compare_ob_value_lists (ob1, ob2))
227	return 0;	299	return 0;
228	}	300	}
229		301
230	//TODO: generate an event or call into perl for additional checks	302	//TODO: generate an event or call into perl for additional checks
231	if (ob1->self || ob2->self)	303	if (ob1->self || ob2->self)
232	{	304	{
233	ob1->optimise ();	305	ob1->optimise ();
234	ob2->optimise ();	306	ob2->optimise ();
235		307
236	if (ob1->self || ob2->self)	308	if (ob1->self || ob2->self)
237	return 0;	309	return 0;
238	}	310	}
239		311
240	/* Everything passes, must be OK. */	312	/* Everything passes, must be OK. */
241	return 1;	313	return 1;
242	}	314	}
		315
243	/*	316	/*
244	* sum_weight() is a recursive function which calculates the weight	317	* sum_weight() is a recursive function which calculates the weight
245	* an object is carrying. It goes through in figures out how much	318	* an object is carrying. It goes through in figures out how much
246	* containers are carrying, and sums it up.	319	* containers are carrying, and sums it up.
247	*/	320	*/
248	signed long sum_weight(object *op) {	321	long
		322	sum_weight (object *op)
		323	{
249	signed long sum;	324	long sum;
250	object *inv;	325	object *inv;
		326
251	for(sum = 0, inv = op->inv; inv != NULL; inv = inv->below) {	327	for (sum = 0, inv = op->inv; inv != NULL; inv = inv->below)
		328	{
252	if (inv->inv)	329	if (inv->inv)
253	sum_weight(inv);	330	sum_weight (inv);
254	sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1);	331	sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1);
255	}	332	}
		333
256	if (op->type == CONTAINER && op->stats.Str)	334	if (op->type == CONTAINER && op->stats.Str)
257	sum = (sum * (100 - op->stats.Str))/100;	335	sum = (sum * (100 - op->stats.Str)) / 100;
		336
258	if(op->carrying != sum)	337	if (op->carrying != sum)
259	op->carrying = sum;	338	op->carrying = sum;
		339
260	return sum;	340	return sum;
261	}	341	}
262		342
263	/**	343	/**
264	* Return the outermost environment object for a given object.	344	* Return the outermost environment object for a given object.
265	*/	345	*/
266		346
		347	object *
267	object *object_get_env_recursive (object *op) {	348	object_get_env_recursive (object *op)
		349	{
268	while (op->env != NULL)	350	while (op->env != NULL)
269	op = op->env;	351	op = op->env;
270	return op;	352	return op;
271	}
272
273	/*
274	* Eneq(@csd.uu.se): Since we can have items buried in a character we need
275	* a better check. We basically keeping traversing up until we can't
276	* or find a player.
277	*/
278
279	object *is_player_inv (object *op) {
280	for (;op!=NULL&&op->type!=PLAYER; op=op->env)
281	if (op->env==op)
282	op->env = NULL;
283	return op;
284	}	353	}
285		354
286	/*	355	/*
287	* Used by: Crossedit: dump. Server DM commands: dumpbelow, dump.	356	* Used by: Crossedit: dump. Server DM commands: dumpbelow, dump.
288	* Some error messages.	357	* Some error messages.
289	* The result of the dump is stored in the static global errmsg array.	358	* The result of the dump is stored in the static global errmsg array.
290	*/	359	*/
291		360
292	void dump_object2(object *op) {	361	char *
293	errmsg[0] = 0;
294	return;
295	//TODO//D#d#
296	#if 0
297	char *cp;
298	/* object *tmp;*/
299
300	if(op->arch!=NULL) {
301	strcat(errmsg,"arch ");
302	strcat(errmsg,op->arch->name?op->arch->name:"(null)");
303	strcat(errmsg,"\n");
304	if((cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)
305	strcat(errmsg,cp);
306	#if 0
307	/* Don't dump player diffs - they are too long, mostly meaningless, and
308	* will overflow the buffer.
309	* Changed so that we don't dump inventory either. This may
310	* also overflow the buffer.
311	*/
312	if(op->type!=PLAYER && (cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)
313	strcat(errmsg,cp);
314	for (tmp=op->inv; tmp; tmp=tmp->below)
315	dump_object2(tmp);
316	#endif
317	strcat(errmsg,"end\n");
318	} else {
319	strcat(errmsg,"Object ");
320	if (op->name==NULL) strcat(errmsg, "(null)");
321	else strcat(errmsg,op->name);
322	strcat(errmsg,"\n");
323	#if 0
324	if((cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)
325	strcat(errmsg,cp);
326	for (tmp=op->inv; tmp; tmp=tmp->below)
327	dump_object2(tmp);
328	#endif
329	strcat(errmsg,"end\n");
330	}
331	#endif
332	}
333
334	/*
335	* Dumps an object. Returns output in the static global errmsg array.
336	*/
337
338	void dump_object(object *op) {	362	dump_object (object *op)
339	if(op==NULL) {	363	{
340	strcpy(errmsg,"[NULL pointer]");	364	if (!op)
341	return;	365	return strdup ("[NULLOBJ]");
342	}
343	errmsg[0]='\0';
344	dump_object2(op);
345	}
346		366
347	void dump_all_objects(void) {	367	object_freezer freezer;
348	object *op;	368	save_object (freezer, op, 1);
349	for(op=objects;op!=NULL;op=op->next) {	369	return freezer.as_string ();
350	dump_object(op);
351	fprintf(logfile, "Object %d\n:%s\n", op->count, errmsg);
352	}
353	}	370	}
354		371
355	/*	372	/*
356	* get_nearest_part(multi-object, object 2) returns the part of the	373	* get_nearest_part(multi-object, object 2) returns the part of the
357	* multi-object 1 which is closest to the second object.	374	* multi-object 1 which is closest to the second object.
358	* If it's not a multi-object, it is returned.	375	* If it's not a multi-object, it is returned.
359	*/	376	*/
360		377
		378	object *
361	object *get_nearest_part(object *op, const object *pl) {	379	get_nearest_part (object *op, const object *pl)
		380	{
362	object *tmp,*closest;	381	object *tmp, *closest;
363	int last_dist,i;	382	int last_dist, i;
		383
364	if(op->more==NULL)	384	if (op->more == NULL)
365	return op;	385	return op;
366	for(last_dist=distance(op,pl),closest=op,tmp=op->more;tmp!=NULL;tmp=tmp->more)	386	for (last_dist = distance (op, pl), closest = op, tmp = op->more; tmp != NULL; tmp = tmp->more)
367	if((i=distance(tmp,pl))<last_dist)	387	if ((i = distance (tmp, pl)) < last_dist)
368	closest=tmp,last_dist=i;	388	closest = tmp, last_dist = i;
369	return closest;	389	return closest;
370	}	390	}
371		391
372	/*	392	/*
373	* Returns the object which has the count-variable equal to the argument.	393	* Returns the object which has the count-variable equal to the argument.
374	*/	394	*/
375		395
		396	object *
376	object *find_object(tag_t i) {	397	find_object (tag_t i)
377	object *op;	398	{
378	for(op=objects;op!=NULL;op=op->next)	399	for (object *op = object::first; op; op = op->next)
379	if(op->count==i)	400	if (op->count == i)
380	break;	401	return op;
		402
381	return op;	403	return 0;
382	}	404	}
383		405
384	/*	406	/*
385	* Returns the first object which has a name equal to the argument.	407	* Returns the first object which has a name equal to the argument.
386	* Used only by the patch command, but not all that useful.	408	* Used only by the patch command, but not all that useful.
387	* Enables features like "patch <name-of-other-player> food 999"	409	* Enables features like "patch <name-of-other-player> food 999"
388	*/	410	*/
389		411
		412	object *
390	object *find_object_name(const char *str) {	413	find_object_name (const char *str)
391	const char *name = shstr::find (str);	414	{
		415	shstr_cmp str_ (str);
392	object *op;	416	object *op;
		417
393	for(op=objects;op!=NULL;op=op->next)	418	for (op = object::first; op != NULL; op = op->next)
394	if(&op->name == name)	419	if (op->name == str_)
395	break;	420	break;
396		421
397	return op;	422	return op;
398	}	423	}
399		424
		425	void
400	void free_all_object_data ()	426	free_all_object_data ()
401	{	427	{
402	LOG (llevDebug, "%d allocated objects\n", nrofallocobjects);	428	LOG (llevDebug, "%d allocated objects\n", nrofallocobjects);
403	}
404
405	/*
406	* Returns the object which this object marks as being the owner.
407	* A id-scheme is used to avoid pointing to objects which have been
408	* freed and are now reused. If this is detected, the owner is
409	* set to NULL, and NULL is returned.
410	* Changed 2004-02-12 - if the player is setting at the play again
411	* prompt, he is removed, and we don't want to treat him as an owner of
412	* anything, so check removed flag. I don't expect that this should break
413	* anything - once an object is removed, it is basically dead anyways.
414	*/
415
416	object *get_owner(object *op) {
417	if(op->owner==NULL)
418	return NULL;
419
420	if (!QUERY_FLAG(op->owner,FLAG_FREED) && !QUERY_FLAG(op->owner, FLAG_REMOVED) &&
421	op->owner->count==op->ownercount)
422	return op->owner;
423
424	op->owner=NULL;
425	op->ownercount=0;
426	return NULL;
427	}
428
429	void clear_owner(object *op)
430	{
431	if (!op) return;
432
433	if (op->owner && op->ownercount == op->owner->count)
434	op->owner->refcount--;
435
436	op->owner = NULL;
437	op->ownercount = 0;
438	}	429	}
439		430
440	/*	431	/*
441	* Sets the owner and sets the skill and exp pointers to owner's current	432	* Sets the owner and sets the skill and exp pointers to owner's current
442	* skill and experience objects.	433	* skill and experience objects.
443	*/	434	*/
444	void set_owner (object *op, object *owner)	435	void
		436	object::set_owner (object *owner)
445	{	437	{
446	if(owner==NULL||op==NULL)	438	if (!owner)
447	return;	439	return;
448		440
449	/* next line added to allow objects which own objects */	441	/* next line added to allow objects which own objects */
450	/* Add a check for ownercounts in here, as I got into an endless loop	442	/* Add a check for ownercounts in here, as I got into an endless loop
451	* with the fireball owning a poison cloud which then owned the	443	* with the fireball owning a poison cloud which then owned the
452	* fireball. I believe that was caused by one of the objects getting	444	* fireball. I believe that was caused by one of the objects getting
453	* freed and then another object replacing it. Since the ownercounts	445	* freed and then another object replacing it. Since the ownercounts
454	* didn't match, this check is valid and I believe that cause is valid.	446	* didn't match, this check is valid and I believe that cause is valid.
455	*/	447	*/
456	while (owner->owner && owner!=owner->owner &&	448	while (owner->owner)
457	owner->ownercount==owner->owner->count) owner=owner->owner;	449	owner = owner->owner;
458		450
459	/* IF the owner still has an owner, we did not resolve to a final owner.
460	* so lets not add to that.
461	*/
462	if (owner->owner) return;
463
464	op->owner=owner;	451	this->owner = owner;
465
466	op->ownercount=owner->count;
467	owner->refcount++;
468
469	}
470
471	/* Set the owner to clone's current owner and set the skill and experience
472	* objects to clone's objects (typically those objects that where the owner's
473	* current skill and experience objects at the time when clone's owner was
474	* set - not the owner's current skill and experience objects).
475	*
476	* Use this function if player created an object (e.g. fire bullet, swarm
477	* spell), and this object creates further objects whose kills should be
478	* accounted for the player's original skill, even if player has changed
479	* skills meanwhile.
480	*/
481	void copy_owner (object *op, object *clone)
482	{
483	object *owner = get_owner (clone);
484	if (owner == NULL) {
485	/* players don't have owners - they own themselves. Update
486	* as appropriate.
487	*/
488	if (clone->type == PLAYER) owner=clone;
489	else return;
490	}
491	set_owner(op, owner);
492
493	}	452	}
494		453
495	/* Zero the key_values on op, decrementing the shared-string	454	/* Zero the key_values on op, decrementing the shared-string
496	* refcounts and freeing the links.	455	* refcounts and freeing the links.
497	*/	456	*/
		457	static void
498	static void free_key_values(object * op)	458	free_key_values (object *op)
499	{	459	{
500	for (key_value *i = op->key_values; i != 0; )	460	for (key_value *i = op->key_values; i != 0;)
501	{	461	{
502	key_value *next = i->next;	462	key_value *next = i->next;
503	delete i;	463	delete i;
		464
504	i = next;	465	i = next;
505	}	466	}
506		467
507	op->key_values = 0;	468	op->key_values = 0;
508	}	469	}
509		470
510	void object::clear ()
511	{
512	attachable_base::clear ();
513
514	free_key_values (this);
515
516	name = 0;
517	name_pl = 0;
518	title = 0;
519	race = 0;
520	slaying = 0;
521	skill = 0;
522	msg = 0;
523	lore = 0;
524	custom_name = 0;
525	materialname = 0;
526
527	memset (static_cast<object_pod *>(this), 0, sizeof (object_pod));
528
529	SET_FLAG (this, FLAG_REMOVED);
530	}
531
532	void object::clone (object *destination)
533	{
534	*(object_copy *)destination = *(object_copy *)this;
535	*(object_pod *)destination = *(object_pod *)this;
536
537	if (self || cb)
538	INVOKE_OBJECT (CLONE, this, ARG_OBJECT (destination));
539	}
540
541	/*	471	/*
542	* clear_object() frees everything allocated by an object, and also
543	* clears all variables and flags to default settings.
544	*/
545
546	void clear_object (object *op)
547	{
548	op->clear ();
549
550	op->contr = NULL;
551	op->below = NULL;
552	op->above = NULL;
553	op->inv = NULL;
554	op->container=NULL;
555	op->env=NULL;
556	op->more=NULL;
557	op->head=NULL;
558	op->map=NULL;
559	op->refcount=0;
560	op->active_next = NULL;
561	op->active_prev = NULL;
562	/* What is not cleared is next, prev, and count */
563
564	op->expmul = 1.0;
565	op->face = blank_face;
566	op->attacked_by_count = -1;
567
568	if (settings.casting_time)
569	op->casting_time = -1;
570	}
571
572	/*
573	* copy object first frees everything allocated by the second object,	472	* copy_to first frees everything allocated by the dst object,
574	* and then copies the contends of the first object into the second	473	* and then copies the contents of itself into the second
575	* object, allocating what needs to be allocated. Basically, any	474	* object, allocating what needs to be allocated. Basically, any
576	* data that is malloc'd needs to be re-malloc/copied. Otherwise,	475	* data that is malloc'd needs to be re-malloc/copied. Otherwise,
577	* if the first object is freed, the pointers in the new object	476	* if the first object is freed, the pointers in the new object
578	* will point at garbage.	477	* will point at garbage.
579	*/	478	*/
580		479	void
581	void copy_object (object *op2, object *op)	480	object::copy_to (object *dst)
582	{	481	{
583	bool is_freed = QUERY_FLAG (op, FLAG_FREED);	482	bool is_freed = QUERY_FLAG (dst, FLAG_FREED);
584	bool is_removed = QUERY_FLAG (op, FLAG_REMOVED);	483	bool is_removed = QUERY_FLAG (dst, FLAG_REMOVED);
585		484
586	op2->clone (op);	485	*(object_copy *)dst = *this;
587		486
588	if (is_freed) SET_FLAG (op, FLAG_FREED);	487	if (is_freed)
589	if (is_removed) SET_FLAG (op, FLAG_REMOVED);	488	SET_FLAG (dst, FLAG_FREED);
590		489
		490	if (is_removed)
		491	SET_FLAG (dst, FLAG_REMOVED);
		492
591	if (op2->speed < 0)	493	if (speed < 0)
592	op->speed_left = op2->speed_left - RANDOM() % 200 / 100.0;	494	dst->speed_left = speed_left - RANDOM () % 200 / 100.0;
593		495
594	/* Copy over key_values, if any. */	496	/* Copy over key_values, if any. */
595	if (op2->key_values != NULL)	497	if (key_values)
596	{	498	{
597	key_value *tail = NULL;	499	key_value *tail = 0;
598	key_value *i;	500	key_value *i;
599		501
600	op->key_values = NULL;	502	dst->key_values = 0;
601		503
602	for (i = op2->key_values; i != NULL; i = i->next)	504	for (i = key_values; i; i = i->next)
603	{	505	{
604	key_value *new_link = new key_value;	506	key_value *new_link = new key_value;
605		507
606	new_link->next = NULL;	508	new_link->next = 0;
607	new_link->key = i->key;	509	new_link->key = i->key;
608	new_link->value = i->value;	510	new_link->value = i->value;
609		511
610	/* Try and be clever here, too. */	512	/* Try and be clever here, too. */
611	if (op->key_values == NULL)	513	if (!dst->key_values)
612	{	514	{
613	op->key_values = new_link;	515	dst->key_values = new_link;
614	tail = new_link;	516	tail = new_link;
615	}	517	}
616	else	518	else
617	{	519	{
618	tail->next = new_link;	520	tail->next = new_link;
619	tail = new_link;	521	tail = new_link;
620	}	522	}
621	}	523	}
622	}	524	}
623		525
624	update_ob_speed (op);	526	dst->set_speed (dst->speed);
		527	}
		528
		529	object *
		530	object::clone ()
		531	{
		532	object *neu = create ();
		533	copy_to (neu);
		534	return neu;
625	}	535	}
626		536
627	/*	537	/*
628	* If an object with the IS_TURNABLE() flag needs to be turned due	538	* If an object with the IS_TURNABLE() flag needs to be turned due
629	* to the closest player being on the other side, this function can	539	* to the closest player being on the other side, this function can
630	* be called to update the face variable, _and_ how it looks on the map.	540	* be called to update the face variable, _and_ how it looks on the map.
631	*/	541	*/
632		542	void
633	void update_turn_face(object *op) {	543	update_turn_face (object *op)
		544	{
634	if(!QUERY_FLAG(op,FLAG_IS_TURNABLE)||op->arch==NULL)	545	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || !op->arch)
635	return;	546	return;
		547
636	SET_ANIMATION(op, op->direction);	548	SET_ANIMATION (op, op->direction);
637	update_object(op,UP_OBJ_FACE);	549	update_object (op, UP_OBJ_FACE);
638	}	550	}
639		551
640	/*	552	/*
641	* Updates the speed of an object. If the speed changes from 0 to another	553	* Updates the speed of an object. If the speed changes from 0 to another
642	* value, or vice versa, then add/remove the object from the active list.	554	* value, or vice versa, then add/remove the object from the active list.
643	* This function needs to be called whenever the speed of an object changes.	555	* This function needs to be called whenever the speed of an object changes.
644	*/	556	*/
645		557	void
646	void update_ob_speed(object *op) {	558	object::set_speed (float speed)
647	extern int arch_init;	559	{
648		560	if (flag [FLAG_FREED] && speed)
649	/* No reason putting the archetypes objects on the speed list,	561	{
650	* since they never really need to be updated.
651	*/
652
653	if (QUERY_FLAG(op, FLAG_FREED) && op->speed) {
654	LOG(llevError,"Object %s is freed but has speed.\n", &op->name);	562	LOG (llevError, "Object %s is freed but has speed.\n", &name);
655	#ifdef MANY_CORES
656	abort();
657	#else
658	op->speed = 0;	563	speed = 0;
659	#endif
660	}	564	}
661	if (arch_init) {
662	return;
663	}
664	if (FABS(op->speed)>MIN_ACTIVE_SPEED) {
665	/* If already on active list, don't do anything */
666	if (op->active_next || op->active_prev || op==active_objects)
667	return;
668		565
669	/* process_events() expects us to insert the object at the beginning	566	this->speed = speed;
670	* of the list. */	567
671	op->active_next = active_objects;	568	if (has_active_speed ())
672	if (op->active_next!=NULL)	569	activate ();
673	op->active_next->active_prev = op;
674	active_objects = op;
675	}
676	else {	570	else
677	/* If not on the active list, nothing needs to be done */	571	deactivate ();
678	if (!op->active_next && !op->active_prev && op!=active_objects)
679	return;
680
681	if (op->active_prev==NULL) {
682	active_objects = op->active_next;
683	if (op->active_next!=NULL)
684	op->active_next->active_prev = NULL;
685	}
686	else {
687	op->active_prev->active_next = op->active_next;
688	if (op->active_next)
689	op->active_next->active_prev = op->active_prev;
690	}
691	op->active_next = NULL;
692	op->active_prev = NULL;
693	}
694	}	572	}
695		573
696	/* This function removes object 'op' from the list of active
697	* objects.
698	* This should only be used for style maps or other such
699	* reference maps where you don't want an object that isn't
700	* in play chewing up cpu time getting processed.
701	* The reverse of this is to call update_ob_speed, which
702	* will do the right thing based on the speed of the object.
703	*/
704	void remove_from_active_list(object *op)
705	{
706	/* If not on the active list, nothing needs to be done */
707	if (!op->active_next && !op->active_prev && op!=active_objects)
708	return;
709
710	if (op->active_prev==NULL) {
711	active_objects = op->active_next;
712	if (op->active_next!=NULL)
713	op->active_next->active_prev = NULL;
714	}
715	else {
716	op->active_prev->active_next = op->active_next;
717	if (op->active_next)
718	op->active_next->active_prev = op->active_prev;
719	}
720	op->active_next = NULL;
721	op->active_prev = NULL;
722	}
723
724	/*	574	/*
725	* update_object() updates the array which represents the map.	575	* update_object() updates the the map.
726	* It takes into account invisible objects (and represent squares covered	576	* It takes into account invisible objects (and represent squares covered
727	* by invisible objects by whatever is below them (unless it's another	577	* by invisible objects by whatever is below them (unless it's another
728	* invisible object, etc...)	578	* invisible object, etc...)
729	* If the object being updated is beneath a player, the look-window	579	* If the object being updated is beneath a player, the look-window
730	* of that player is updated (this might be a suboptimal way of	580	* of that player is updated (this might be a suboptimal way of
731	* updating that window, though, since update_object() is called _often_)	581	* updating that window, though, since update_object() is called _often_)
732	*	582	*
733	* action is a hint of what the caller believes need to be done.	583	* action is a hint of what the caller believes need to be done.
734	* For example, if the only thing that has changed is the face (due to
735	* an animation), we don't need to call update_position until that actually
736	* comes into view of a player. OTOH, many other things, like addition/removal
737	* of walls or living creatures may need us to update the flags now.
738	* current action are:	584	* current action are:
739	* UP_OBJ_INSERT: op was inserted	585	* UP_OBJ_INSERT: op was inserted
740	* UP_OBJ_REMOVE: op was removed	586	* UP_OBJ_REMOVE: op was removed
741	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update	587	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update
742	* as that is easier than trying to look at what may have changed.	588	* as that is easier than trying to look at what may have changed.
743	* UP_OBJ_FACE: only the objects face has changed.	589	* UP_OBJ_FACE: only the objects face has changed.
744	*/	590	*/
745		591	void
746	void update_object(object *op, int action) {	592	update_object (object *op, int action)
747	int update_now=0, flags;	593	{
748	MoveType move_on, move_off, move_block, move_slow;	594	MoveType move_on, move_off, move_block, move_slow;
749		595
750	if (op == NULL) {	596	if (op == NULL)
		597	{
751	/* this should never happen */	598	/* this should never happen */
752	LOG(llevDebug,"update_object() called for NULL object.\n");	599	LOG (llevDebug, "update_object() called for NULL object.\n");
753	return;	600	return;
754	}
755		601	}
756	if(op->env!=NULL) {	602
		603	if (op->env)
		604	{
757	/* Animation is currently handled by client, so nothing	605	/* Animation is currently handled by client, so nothing
758	* to do in this case.	606	* to do in this case.
759	*/	607	*/
760	return;	608	return;
761	}	609	}
762		610
763	/* If the map is saving, don't do anything as everything is	611	/* If the map is saving, don't do anything as everything is
764	* going to get freed anyways.	612	* going to get freed anyways.
765	*/	613	*/
766	if (!op->map || op->map->in_memory == MAP_SAVING) return;	614	if (!op->map || op->map->in_memory == MAP_SAVING)
767		615	return;
		616
768	/* make sure the object is within map boundaries */	617	/* make sure the object is within map boundaries */
769	if (op->x < 0 || op->x >= MAP_WIDTH(op->map) ||	618	if (op->x < 0 || op->x >= op->map->width || op->y < 0 || op->y >= op->map->height)
770	op->y < 0 || op->y >= MAP_HEIGHT(op->map)) {	619	{
771	LOG(llevError,"update_object() called for object out of map!\n");	620	LOG (llevError, "update_object() called for object out of map!\n");
772	#ifdef MANY_CORES	621	#ifdef MANY_CORES
773	abort();	622	abort ();
774	#endif	623	#endif
775	return;	624	return;
776	}
777		625	}
778	flags = GET_MAP_FLAGS(op->map, op->x, op->y);
779	SET_MAP_FLAGS(op->map, op->x, op->y, flags | P_NEED_UPDATE);
780	move_slow = GET_MAP_MOVE_SLOW(op->map, op->x, op->y);
781	move_on = GET_MAP_MOVE_ON(op->map, op->x, op->y);
782	move_block = GET_MAP_MOVE_BLOCK(op->map, op->x, op->y);
783	move_off = GET_MAP_MOVE_OFF(op->map, op->x, op->y);
784		626
		627	mapspace &m = op->ms ();
		628
		629	if (!(m.flags_ & P_UPTODATE))
		630	/* nop */;
785	if (action == UP_OBJ_INSERT) {	631	else if (action == UP_OBJ_INSERT)
		632	{
		633	// this is likely overkill, TODO: revisit (schmorp)
786	if (QUERY_FLAG(op, FLAG_BLOCKSVIEW) && !(flags & P_BLOCKSVIEW))	634	if ((QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(m.flags_ & P_BLOCKSVIEW))
787	update_now=1;
788
789	if (QUERY_FLAG(op, FLAG_NO_MAGIC) && !(flags & P_NO_MAGIC))	635	|| (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(m.flags_ & P_NO_MAGIC))
790	update_now=1;	636	|| (op->type == PLAYER && !(m.flags_ & P_PLAYER))
791		637	|| (op->type == SAFE_GROUND && !(m.flags_ & P_SAFE))
		638	|| (QUERY_FLAG (op, FLAG_ALIVE) && !(m.flags_ & P_IS_ALIVE))
792	if (QUERY_FLAG(op, FLAG_DAMNED) && !(flags & P_NO_CLERIC))	639	|| (QUERY_FLAG (op, FLAG_DAMNED) && !(m.flags_ & P_NO_CLERIC))
793	update_now=1;	640	|| (m.move_on | op->move_on ) != m.move_on
794
795	if (QUERY_FLAG(op, FLAG_ALIVE) && !(flags & P_IS_ALIVE))
796	update_now=1;
797
798	if (op->type == SAFE_GROUND && !(flags & P_SAFE))
799	update_now=1;
800
801	if ((move_on | op->move_on) != move_on) update_now=1;
802
803	if ((move_off | op->move_off) != move_off) update_now=1;	641	|| (m.move_off | op->move_off ) != m.move_off
804		642	|| (m.move_slow | op->move_slow) != m.move_slow
805	/* This isn't perfect, but I don't expect a lot of objects to	643	/* This isn't perfect, but I don't expect a lot of objects to
806	* to have move_allow right now.	644	* to have move_allow right now.
807	*/	645	*/
808	if (((move_block | op->move_block) & ~op->move_allow) != move_block)	646	|| ((m.move_block | op->move_block) & ~op->move_allow) != m.move_block
809	update_now=1;	647	|| 1) // the above is not strong enough a test to skip updating. los maybe? TODO (Schmorp)
810		648	m.flags_ = 0;
811	if ((move_slow | op->move_slow) != move_slow)
812	update_now=1;
813	}	649	}
814	/* if the object is being removed, we can't make intelligent	650	/* if the object is being removed, we can't make intelligent
815	* decisions, because remove_ob can't really pass the object	651	* decisions, because remove_ob can't really pass the object
816	* that is being removed.	652	* that is being removed.
817	*/	653	*/
818	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE) {	654	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)
819	update_now=1;	655	m.flags_ = 0;
820	} else if (action == UP_OBJ_FACE) {	656	else if (action == UP_OBJ_FACE)
821	/* Nothing to do for that case */	657	/* Nothing to do for that case */ ;
822	}
823	else {	658	else
824	LOG(llevError,"update_object called with invalid action: %d\n", action);	659	LOG (llevError, "update_object called with invalid action: %d\n", action);
825	}
826		660
827	if (update_now) {
828	SET_MAP_FLAGS(op->map, op->x, op->y, flags | P_NO_ERROR | P_NEED_UPDATE);
829	update_position(op->map, op->x, op->y);
830	}
831
832	if(op->more!=NULL)	661	if (op->more)
833	update_object(op->more, action);	662	update_object (op->more, action);
834	}	663	}
835		664
836	static std::vector<object *> mortals;	665	object *object::first;
837
838	void object::free_mortals ()
839	{
840	for (std::vector<object *>::iterator i = mortals.begin (); i != mortals.end (); ++i)
841	delete *i;
842
843	mortals.clear ();
844	}
845		666
846	object::object ()	667	object::object ()
847	{	668	{
848	count = ++ob_count;
849
850	prev = 0;
851	next = objects;
852
853	if (objects)
854	objects->prev = this;
855
856	objects = this;
857
858	SET_FLAG (this, FLAG_REMOVED);	669	SET_FLAG (this, FLAG_REMOVED);
859		670
860	expmul = 1.0;	671	expmul = 1.0;
861	face = blank_face;	672	face = blank_face;
862	attacked_by_count = -1;
863	}	673	}
864		674
865	object::~object ()	675	object::~object ()
866	{	676	{
		677	free_key_values (this);
867	}	678	}
868		679
869	object *object::create ()	680	void object::link ()
870	{	681	{
871	return new object;	682	count = ++ob_count;
872	}	683	uuid = gen_uuid ();
873		684
874	/*
875	* free_object() frees everything allocated by an object, removes
876	* it from the list of used objects, and puts it on the list of
877	* free objects. The IS_FREED() flag is set in the object.
878	* The object must have been removed by remove_ob() first for
879	* this function to succeed.
880	*
881	* If free_inventory is set, free inventory as well. Else drop items in
882	* inventory to the ground.
883	*/
884	void
885	object::free (bool free_inventory)
886	{
887	if (!QUERY_FLAG (this, FLAG_REMOVED))
888	{
889	LOG (llevDebug, "Free object called with non removed object\n");
890	dump_object (this);
891	#ifdef MANY_CORES
892	abort ();
893	#endif
894	}
895
896	if (QUERY_FLAG (this, FLAG_FRIENDLY))
897	{
898	LOG (llevMonster, "Warning: tried to free friendly object.\n");
899	remove_friendly_object (this);
900	}
901
902	if (QUERY_FLAG (this, FLAG_FREED))
903	{
904	dump_object (this);
905	LOG (llevError, "Trying to free freed object.\n%s\n", errmsg);
906	return;
907	}
908
909	if (more)
910	{
911	more->free (free_inventory);
912	more = 0;
913	}
914
915	if (inv)
916	{
917	/* Only if the space blocks everything do we not process -
918	* if some form of movement is allowed, let objects
919	* drop on that space.
920	*/
921	if (free_inventory || !map
922	|| map->in_memory != MAP_IN_MEMORY
923	|| (GET_MAP_MOVE_BLOCK (map, x, y) == MOVE_ALL))
924	{
925	object *op = inv;
926
927	while (op)
928	{
929	object *tmp = op->below;
930	remove_ob (op);
931	op->free (free_inventory);
932	op = tmp;
933	}
934	}
935	else
936	{ /* Put objects in inventory onto this space */
937	object *op = inv;
938
939	while (op)
940	{
941	object *tmp = op->below;
942	remove_ob (op);
943
944	if (QUERY_FLAG (op, FLAG_STARTEQUIP)
945	|| QUERY_FLAG (op, FLAG_NO_DROP) || op->type == RUNE
946	|| op->type == TRAP || QUERY_FLAG (op, FLAG_IS_A_TEMPLATE))
947	free_object (op);
948	else
949	{
950	op->x = x;
951	op->y = y;
952	insert_ob_in_map (op, map, 0, 0); /* Insert in same map as the envir */
953	}
954
955	op = tmp;
956	}
957	}
958	}
959
960	/* Remove object from the active list */
961	speed = 0;	685	prev = 0;
962	update_ob_speed (this);	686	next = object::first;
963		687
964	SET_FLAG (this, FLAG_FREED);	688	if (object::first)
		689	object::first->prev = this;
965		690
966	mortalise ();	691	object::first = this;
967	}	692	}
968		693
969	void	694	void object::unlink ()
970	object::mortalise ()
971	{	695	{
972	count = 0;	696	if (this == object::first)
		697	object::first = next;
973		698
974	/* Remove this object from the list of used objects */	699	/* Remove this object from the list of used objects */
975	if (prev) prev->next = next;	700	if (prev) prev->next = next;
976	if (next) next->prev = prev;	701	if (next) next->prev = prev;
977	if (this == objects) objects = next;
978		702
979	free_key_values (this);	703	prev = 0;
		704	next = 0;
		705	}
980		706
981	mortals.push_back (this);	707	bool
		708	object::active () const
		709	{
		710	return active_next || active_prev || this == active_objects;
		711	}
		712
		713	void
		714	object::activate ()
		715	{
		716	/* If already on active list, don't do anything */
		717	if (active ())
		718	return;
		719
		720	if (has_active_speed ())
		721	{
		722	/* process_events() expects us to insert the object at the beginning
		723	* of the list. */
		724	active_next = active_objects;
		725
		726	if (active_next)
		727	active_next->active_prev = this;
		728
		729	active_objects = this;
		730	}
		731	}
		732
		733	void
		734	object::activate_recursive ()
		735	{
		736	activate ();
		737
		738	for (object *op = inv; op; op = op->above)
		739	op->activate_recursive ();
		740	}
		741
		742	/* This function removes object 'op' from the list of active
		743	* objects.
		744	* This should only be used for style maps or other such
		745	* reference maps where you don't want an object that isn't
		746	* in play chewing up cpu time getting processed.
		747	* The reverse of this is to call update_ob_speed, which
		748	* will do the right thing based on the speed of the object.
		749	*/
		750	void
		751	object::deactivate ()
		752	{
		753	/* If not on the active list, nothing needs to be done */
		754	if (!active ())
		755	return;
		756
		757	if (active_prev == 0)
		758	{
		759	active_objects = active_next;
		760	if (active_next)
		761	active_next->active_prev = 0;
		762	}
		763	else
		764	{
		765	active_prev->active_next = active_next;
		766	if (active_next)
		767	active_next->active_prev = active_prev;
		768	}
		769
		770	active_next = 0;
		771	active_prev = 0;
		772	}
		773
		774	void
		775	object::deactivate_recursive ()
		776	{
		777	for (object *op = inv; op; op = op->above)
		778	op->deactivate_recursive ();
		779
		780	deactivate ();
		781	}
		782
		783	/*
		784	* Remove and free all objects in the inventory of the given object.
		785	* object.c ?
		786	*/
		787	void
		788	object::destroy_inv (bool drop_to_ground)
		789	{
		790	// need to check first, because the checks below might segfault
		791	// as we might be on an invalid mapspace and crossfire code
		792	// is too buggy to ensure that the inventory is empty.
		793	// corollary: if you create arrows etc. with stuff in tis inventory,
		794	// cf will crash below with off-map x and y
		795	if (!inv)
		796	return;
		797
		798	/* Only if the space blocks everything do we not process -
		799	* if some form of movement is allowed, let objects
		800	* drop on that space.
		801	*/
		802	if (!drop_to_ground
		803	|| !map
		804	|| map->in_memory != MAP_IN_MEMORY
		805	|| ms ().move_block == MOVE_ALL)
		806	{
		807	while (inv)
		808	{
		809	inv->destroy_inv (drop_to_ground);
		810	inv->destroy ();
		811	}
		812	}
		813	else
		814	{ /* Put objects in inventory onto this space */
		815	while (inv)
		816	{
		817	object *op = inv;
		818
		819	if (op->flag [FLAG_STARTEQUIP]
		820	|| op->flag [FLAG_NO_DROP]
		821	|| op->type == RUNE
		822	|| op->type == TRAP
		823	|| op->flag [FLAG_IS_A_TEMPLATE])
		824	op->destroy ();
		825	else
		826	map->insert (op, x, y);
		827	}
		828	}
		829	}
		830
		831	object *object::create ()
		832	{
		833	object *op = new object;
		834	op->link ();
		835	return op;
		836	}
		837
		838	void
		839	object::do_destroy ()
		840	{
		841	if (flag [FLAG_IS_LINKED])
		842	remove_button_link (this);
		843
		844	if (flag [FLAG_FRIENDLY])
		845	remove_friendly_object (this);
		846
		847	if (!flag [FLAG_REMOVED])
		848	remove ();
		849
		850	if (flag [FLAG_FREED])
		851	return;
		852
		853	set_speed (0);
		854
		855	flag [FLAG_FREED] = 1;
		856
		857	attachable::do_destroy ();
		858
		859	destroy_inv (true);
		860	unlink ();
		861
		862	// hack to ensure that freed objects still have a valid map
		863	{
		864	static maptile *freed_map; // freed objects are moved here to avoid crashes
		865
		866	if (!freed_map)
		867	{
		868	freed_map = new maptile;
		869
		870	freed_map->name = "/internal/freed_objects_map";
		871	freed_map->width = 3;
		872	freed_map->height = 3;
		873
		874	freed_map->alloc ();
		875	}
		876
		877	map = freed_map;
		878	x = 1;
		879	y = 1;
		880	}
		881
		882	head = 0;
		883
		884	if (more)
		885	{
		886	more->destroy ();
		887	more = 0;
		888	}
		889
		890	// clear those pointers that likely might have circular references to us
		891	owner = 0;
		892	enemy = 0;
		893	attacked_by = 0;
		894
		895	// only relevant for players(?), but make sure of it anyways
		896	contr = 0;
		897	}
		898
		899	void
		900	object::destroy (bool destroy_inventory)
		901	{
		902	if (destroyed ())
		903	return;
		904
		905	if (destroy_inventory)
		906	destroy_inv (false);
		907
		908	attachable::destroy ();
982	}	909	}
983		910
984	/*	911	/*
985	* sub_weight() recursively (outwards) subtracts a number from the	912	* sub_weight() recursively (outwards) subtracts a number from the
986	* weight of an object (and what is carried by it's environment(s)).	913	* weight of an object (and what is carried by it's environment(s)).
987	*/	914	*/
988		915	void
989	void sub_weight (object *op, signed long weight) {	916	sub_weight (object *op, signed long weight)
		917	{
990	while (op != NULL) {	918	while (op != NULL)
		919	{
991	if (op->type == CONTAINER) {	920	if (op->type == CONTAINER)
992	weight=(signed long)(weight*(100-op->stats.Str)/100);	921	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
993	}	922
994	op->carrying-=weight;	923	op->carrying -= weight;
995	op = op->env;	924	op = op->env;
996	}	925	}
997	}	926	}
998		927
999	/* remove_ob(op):	928	/* op->remove ():
1000	* This function removes the object op from the linked list of objects	929	* This function removes the object op from the linked list of objects
1001	* which it is currently tied to. When this function is done, the	930	* which it is currently tied to. When this function is done, the
1002	* object will have no environment. If the object previously had an	931	* object will have no environment. If the object previously had an
1003	* environment, the x and y coordinates will be updated to	932	* environment, the x and y coordinates will be updated to
1004	* the previous environment.	933	* the previous environment.
1005	* Beware: This function is called from the editor as well!	934	* Beware: This function is called from the editor as well!
1006	*/	935	*/
1007		936	void
1008	void remove_ob(object *op) {	937	object::remove ()
		938	{
1009	object *tmp,*last=NULL;	939	object *tmp, *last = 0;
1010	object *otmp;	940	object *otmp;
1011	tag_t tag;
1012	int check_walk_off;
1013	mapstruct *m;
1014	sint16 x,y;
1015
1016		941
1017	if(QUERY_FLAG(op,FLAG_REMOVED)) {	942	if (QUERY_FLAG (this, FLAG_REMOVED))
1018	dump_object(op);	943	return;
1019	LOG(llevError,"Trying to remove removed object.\n%s\n",errmsg);
1020		944
1021	/* Changed it to always dump core in this case. As has been learned
1022	* in the past, trying to recover from errors almost always
1023	* make things worse, and this is a real error here - something
1024	* that should not happen.
1025	* Yes, if this was a mission critical app, trying to do something
1026	* to recover may make sense, but that is because failure of the app
1027	* may have other disastrous problems. Cf runs out of a script
1028	* so is easily enough restarted without any real problems.
1029	* MSW 2001-07-01
1030	*/
1031	abort();
1032	}
1033	if(op->more!=NULL)
1034	remove_ob(op->more);
1035
1036	SET_FLAG(op, FLAG_REMOVED);	945	SET_FLAG (this, FLAG_REMOVED);
		946	INVOKE_OBJECT (REMOVE, this);
1037		947
		948	if (more)
		949	more->remove ();
		950
1038	/*	951	/*
1039	* In this case, the object to be removed is in someones	952	* In this case, the object to be removed is in someones
1040	* inventory.	953	* inventory.
1041	*/	954	*/
1042	if(op->env!=NULL) {	955	if (env)
		956	{
1043	if(op->nrof)	957	if (nrof)
1044	sub_weight(op->env, op->weight*op->nrof);	958	sub_weight (env, weight * nrof);
1045	else	959	else
1046	sub_weight(op->env, op->weight+op->carrying);	960	sub_weight (env, weight + carrying);
1047		961
1048	/* NO_FIX_PLAYER is set when a great many changes are being	962	/* NO_FIX_PLAYER is set when a great many changes are being
1049	* made to players inventory. If set, avoiding the call	963	* made to players inventory. If set, avoiding the call
1050	* to save cpu time.	964	* to save cpu time.
1051	*/	965	*/
1052	if ((otmp=is_player_inv(op->env))!=NULL && otmp->contr &&	966	if ((otmp = in_player ()) && otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1053	!QUERY_FLAG(otmp,FLAG_NO_FIX_PLAYER))	967	otmp->update_stats ();
1054	fix_player(otmp);
1055		968
1056	if(op->above!=NULL)	969	if (above)
1057	op->above->below=op->below;	970	above->below = below;
1058	else	971	else
1059	op->env->inv=op->below;	972	env->inv = below;
1060		973
1061	if(op->below!=NULL)	974	if (below)
1062	op->below->above=op->above;	975	below->above = above;
1063		976
1064	/* we set up values so that it could be inserted into	977	/* we set up values so that it could be inserted into
1065	* the map, but we don't actually do that - it is up	978	* the map, but we don't actually do that - it is up
1066	* to the caller to decide what we want to do.	979	* to the caller to decide what we want to do.
		980	*/
		981	x = env->x, y = env->y;
		982	map = env->map;
		983	above = 0, below = 0;
		984	env = 0;
		985	}
		986	else if (map)
		987	{
		988	if (type == PLAYER)
		989	{
		990	--map->players;
		991	map->touch ();
		992	}
		993
		994	map->dirty = true;
		995
		996	/* link the object above us */
		997	if (above)
		998	above->below = below;
		999	else
		1000	map->at (x, y).top = below; /* we were top, set new top */
		1001
		1002	/* Relink the object below us, if there is one */
		1003	if (below)
		1004	below->above = above;
		1005	else
		1006	{
		1007	/* Nothing below, which means we need to relink map object for this space
		1008	* use translated coordinates in case some oddness with map tiling is
		1009	* evident
1067	*/	1010	*/
1068	op->x=op->env->x,op->y=op->env->y;	1011	if (GET_MAP_OB (map, x, y) != this)
1069	op->map=op->env->map;	1012	{
1070	op->above=NULL,op->below=NULL;	1013	char *dump = dump_object (this);
1071	op->env=NULL;	1014	LOG (llevError,
		1015	"remove_ob: GET_MAP_OB does not return object to be removed even though it appears to be on the bottom?\n%s\n", dump);
		1016	free (dump);
		1017	dump = dump_object (GET_MAP_OB (map, x, y));
		1018	LOG (llevError, "%s\n", dump);
		1019	free (dump);
		1020	}
		1021
		1022	map->at (x, y).bot = above; /* goes on above it. */
		1023	}
		1024
		1025	above = 0;
		1026	below = 0;
		1027
		1028	if (map->in_memory == MAP_SAVING)
1072	return;	1029	return;
1073	}
1074		1030
1075	/* If we get here, we are removing it from a map */	1031	int check_walk_off = !flag [FLAG_NO_APPLY];
1076	if (op->map == NULL) return;
1077		1032
1078	x = op->x;	1033	for (tmp = map->at (x, y).bot; tmp; tmp = tmp->above)
1079	y = op->y;
1080	m = get_map_from_coord(op->map, &x, &y);
1081
1082	if (!m) {
1083	LOG(llevError,"remove_ob called when object was on map but appears to not be within valid coordinates? %s (%d,%d)\n",
1084	op->map->path, op->x, op->y);
1085	/* in old days, we used to set x and y to 0 and continue.
1086	* it seems if we get into this case, something is probablye
1087	* screwed up and should be fixed.
1088	*/
1089	abort();
1090	}
1091	if (op->map != m) {
1092	LOG(llevDebug,"remove_ob: Object not really on map it claimed to be on? %s != %s, %d,%d != %d,%d\n",
1093	op->map->path, m->path, op->x, op->y, x, y);
1094	}
1095
1096	/* Re did the following section of code - it looks like it had
1097	* lots of logic for things we no longer care about
1098	*/
1099
1100	/* link the object above us */
1101	if (op->above)
1102	op->above->below=op->below;
1103	else
1104	SET_MAP_TOP(m,x,y,op->below); /* we were top, set new top */
1105
1106	/* Relink the object below us, if there is one */
1107	if(op->below) {
1108	op->below->above=op->above;
1109	} else {
1110	/* Nothing below, which means we need to relink map object for this space
1111	* use translated coordinates in case some oddness with map tiling is
1112	* evident
1113	*/
1114	if(GET_MAP_OB(m,x,y)!=op) {
1115	dump_object(op);
1116	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);
1117	dump_object(GET_MAP_OB(m,x,y));
1118	LOG(llevError,"%s\n",errmsg);
1119	}	1034	{
1120	SET_MAP_OB(m,x,y,op->above); /* goes on above it. */
1121	}
1122	op->above=NULL;
1123	op->below=NULL;
1124
1125	if (op->map->in_memory == MAP_SAVING)
1126	return;
1127
1128	tag = op->count;
1129	check_walk_off = ! QUERY_FLAG (op, FLAG_NO_APPLY);
1130	for(tmp=GET_MAP_OB(m,x,y);tmp!=NULL;tmp=tmp->above) {
1131	/* No point updating the players look faces if he is the object	1035	/* No point updating the players look faces if he is the object
1132	* being removed.	1036	* being removed.
1133	*/	1037	*/
1134		1038
1135	if(tmp->type==PLAYER && tmp!=op) {	1039	if (tmp->type == PLAYER && tmp != this)
		1040	{
1136	/* If a container that the player is currently using somehow gets	1041	/* If a container that the player is currently using somehow gets
1137	* removed (most likely destroyed), update the player view	1042	* removed (most likely destroyed), update the player view
1138	* appropriately.	1043	* appropriately.
1139	*/	1044	*/
1140	if (tmp->container==op) {	1045	if (tmp->container == this)
1141	CLEAR_FLAG(op, FLAG_APPLIED);	1046	{
		1047	flag [FLAG_APPLIED] = 0;
1142	tmp->container=NULL;	1048	tmp->container = 0;
		1049	}
		1050
		1051	if (tmp->contr->ns)
		1052	tmp->contr->ns->floorbox_update ();
1143	}	1053	}
1144	tmp->contr->socket.update_look=1;	1054
1145	}
1146	/* See if player moving off should effect something */	1055	/* See if object moving off should effect something */
1147	if (check_walk_off && ((op->move_type & tmp->move_off) &&	1056	if (check_walk_off
		1057	&& ((move_type & tmp->move_off)
1148	(op->move_type & ~tmp->move_off & ~tmp->move_block)==0)) {	1058	&& (move_type & ~tmp->move_off & ~tmp->move_block) == 0))
1149		1059	{
1150	move_apply(tmp, op, NULL);	1060	move_apply (tmp, this, 0);
		1061
1151	if (was_destroyed (op, tag)) {	1062	if (destroyed ())
1152	LOG (llevError, "BUG: remove_ob(): name %s, archname %s destroyed "	1063	LOG (llevError, "BUG: remove_ob(): name %s, destroyed leaving object\n", tmp->debug_desc ());
1153	"leaving object\n", &tmp->name, &tmp->arch->name);
1154	}	1064	}
1155	}
1156		1065
1157	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */	1066	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */
1158		1067	//TODO: why is this horrible hacka fix? get rid of this code=bug! (schmorp)
1159	if(tmp->above == tmp)	1068	if (tmp->above == tmp)
1160	tmp->above = NULL;	1069	tmp->above = 0;
		1070
1161	last=tmp;	1071	last = tmp;
1162	}	1072	}
		1073
1163	/* last == NULL of there are no objects on this space */	1074	/* last == NULL if there are no objects on this space */
1164	if (last==NULL) {	1075	//TODO: this makes little sense, why only update the topmost object?
1165	/* set P_NEED_UPDATE, otherwise update_position will complain. In theory,	1076	if (!last)
1166	* we could preserve the flags (GET_MAP_FLAGS), but update_position figures	1077	map->at (x, y).flags_ = 0;
1167	* those out anyways, and if there are any flags set right now, they won't
1168	* be correct anyways.
1169	*/
1170	SET_MAP_FLAGS(op->map, op->x, op->y, P_NEED_UPDATE);
1171	update_position(op->map, op->x, op->y);
1172	}
1173	else	1078	else
1174	update_object(last, UP_OBJ_REMOVE);	1079	update_object (last, UP_OBJ_REMOVE);
1175		1080
1176	if(QUERY_FLAG(op,FLAG_BLOCKSVIEW)|| (op->glow_radius != 0))	1081	if (flag [FLAG_BLOCKSVIEW] || glow_radius)
1177	update_all_los(op->map, op->x, op->y);	1082	update_all_los (map, x, y);
1178		1083	}
1179	}	1084	}
1180		1085
1181	/*	1086	/*
1182	* merge_ob(op,top):	1087	* merge_ob(op,top):
1183	*	1088	*
1184	* This function goes through all objects below and including top, and	1089	* This function goes through all objects below and including top, and
1185	* merges op to the first matching object.	1090	* merges op to the first matching object.
1186	* If top is NULL, it is calculated.	1091	* If top is NULL, it is calculated.
1187	* Returns pointer to object if it succeded in the merge, otherwise NULL	1092	* Returns pointer to object if it succeded in the merge, otherwise NULL
1188	*/	1093	*/
1189		1094	object *
1190	object *merge_ob(object *op, object *top) {	1095	merge_ob (object *op, object *top)
		1096	{
1191	if(!op->nrof)	1097	if (!op->nrof)
1192	return 0;	1098	return 0;
1193	if(top==NULL)	1099
		1100	if (top)
1194	for(top=op;top!=NULL&&top->above!=NULL;top=top->above);	1101	for (top = op; top && top->above; top = top->above)
		1102	;
		1103
1195	for(;top!=NULL;top=top->below) {	1104	for (; top; top = top->below)
		1105	{
1196	if(top==op)	1106	if (top == op)
1197	continue;	1107	continue;
1198	if (CAN_MERGE(op,top))	1108
1199	{	1109	if (object::can_merge (op, top))
		1110	{
1200	top->nrof+=op->nrof;	1111	top->nrof += op->nrof;
		1112
1201	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/	1113	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/
1202	op->weight = 0; /* Don't want any adjustements now */	1114	op->weight = 0; /* Don't want any adjustements now */
1203	remove_ob(op);	1115	op->destroy ();
1204	free_object(op);
1205	return top;	1116	return top;
1206	}	1117	}
1207	}	1118	}
		1119
1208	return NULL;	1120	return 0;
1209	}	1121	}
1210		1122
1211	/*	1123	/*
1212	* same as insert_ob_in_map except it handle separate coordinates and do a clean	1124	* same as insert_ob_in_map except it handle separate coordinates and do a clean
1213	* job preparing multi-part monsters	1125	* job preparing multi-part monsters
1214	*/	1126	*/
		1127	object *
1215	object *insert_ob_in_map_at(object *op, mapstruct *m, object *originator, int flag, int x, int y){	1128	insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)
1216	object* tmp;	1129	{
1217	if (op->head)	1130	for (object *tmp = op->head_ (); tmp; tmp = tmp->more)
1218	op=op->head;	1131	{
1219	for (tmp=op;tmp;tmp=tmp->more){
1220	tmp->x=x+tmp->arch->clone.x;	1132	tmp->x = x + tmp->arch->clone.x;
1221	tmp->y=y+tmp->arch->clone.y;	1133	tmp->y = y + tmp->arch->clone.y;
1222	}	1134	}
		1135
1223	return insert_ob_in_map (op, m, originator, flag);	1136	return insert_ob_in_map (op, m, originator, flag);
1224	}	1137	}
1225		1138
1226	/*	1139	/*
1227	* insert_ob_in_map (op, map, originator, flag):	1140	* insert_ob_in_map (op, map, originator, flag):
1228	* This function inserts the object in the two-way linked list	1141	* This function inserts the object in the two-way linked list
…		…
1241	* Return value:	1154	* Return value:
1242	* new object if 'op' was merged with other object	1155	* new object if 'op' was merged with other object
1243	* NULL if 'op' was destroyed	1156	* NULL if 'op' was destroyed
1244	* just 'op' otherwise	1157	* just 'op' otherwise
1245	*/	1158	*/
1246		1159	object *
1247	object *insert_ob_in_map (object *op, mapstruct *m, object *originator, int flag)	1160	insert_ob_in_map (object *op, maptile *m, object *originator, int flag)
1248	{	1161	{
1249	object *tmp, *top, *floor=NULL;	1162	object *tmp, *top, *floor = NULL;
1250	sint16 x,y;	1163	sint16 x, y;
1251		1164
1252	if (QUERY_FLAG (op, FLAG_FREED)) {	1165	if (QUERY_FLAG (op, FLAG_FREED))
		1166	{
1253	LOG (llevError, "Trying to insert freed object!\n");	1167	LOG (llevError, "Trying to insert freed object!\n");
1254	return NULL;	1168	return NULL;
		1169	}
		1170
		1171	if (!m)
1255	}	1172	{
1256	if(m==NULL) {
1257	dump_object(op);	1173	char *dump = dump_object (op);
1258	LOG(llevError,"Trying to insert in null-map!\n%s\n",errmsg);	1174	LOG (llevError, "Trying to insert in null-map!\n%s\n", dump);
		1175	free (dump);
1259	return op;	1176	return op;
1260	}	1177	}
		1178
1261	if(out_of_map(m,op->x,op->y)) {	1179	if (out_of_map (m, op->x, op->y))
		1180	{
1262	dump_object(op);	1181	char *dump = dump_object (op);
1263	LOG(llevError,"Trying to insert object outside the map.\n%s\n", errmsg);	1182	LOG (llevError, "Trying to insert object outside the map.\n%s\n", dump);
1264	#ifdef MANY_CORES	1183	#ifdef MANY_CORES
1265	/* Better to catch this here, as otherwise the next use of this object	1184	/* Better to catch this here, as otherwise the next use of this object
1266	* is likely to cause a crash. Better to find out where it is getting	1185	* is likely to cause a crash. Better to find out where it is getting
1267	* improperly inserted.	1186	* improperly inserted.
1268	*/	1187	*/
1269	abort();	1188	abort ();
1270	#endif	1189	#endif
		1190	free (dump);
1271	return op;	1191	return op;
1272	}	1192	}
		1193
1273	if(!QUERY_FLAG(op,FLAG_REMOVED)) {	1194	if (!QUERY_FLAG (op, FLAG_REMOVED))
		1195	{
1274	dump_object(op);	1196	char *dump = dump_object (op);
1275	LOG(llevError,"Trying to insert (map) inserted object.\n%s\n", errmsg);	1197	LOG (llevError, "Trying to insert (map) inserted object.\n%s\n", dump);
		1198	free (dump);
1276	return op;	1199	return op;
		1200	}
		1201
		1202	if (op->more)
1277	}	1203	{
1278	if(op->more!=NULL) {
1279	/* The part may be on a different map. */	1204	/* The part may be on a different map. */
1280		1205
1281	object *more = op->more;	1206	object *more = op->more;
1282		1207
1283	/* We really need the caller to normalize coordinates - if	1208	/* We really need the caller to normalize coordinates - if
1284	* we set the map, that doesn't work if the location is within	1209	* we set the map, that doesn't work if the location is within
1285	* a map and this is straddling an edge. So only if coordinate	1210	* a map and this is straddling an edge. So only if coordinate
1286	* is clear wrong do we normalize it.	1211	* is clear wrong do we normalize it.
1287	*/	1212	*/
1288	if (OUT_OF_REAL_MAP(more->map, more->x, more->y)) {	1213	if (OUT_OF_REAL_MAP (more->map, more->x, more->y))
1289	more->map = get_map_from_coord(m, &more->x, &more->y);	1214	more->map = get_map_from_coord (m, &more->x, &more->y);
1290	} else if (!more->map) {	1215	else if (!more->map)
		1216	{
1291	/* For backwards compatibility - when not dealing with tiled maps,	1217	/* For backwards compatibility - when not dealing with tiled maps,
1292	* more->map should always point to the parent.	1218	* more->map should always point to the parent.
1293	*/	1219	*/
1294	more->map = m;	1220	more->map = m;
1295	}	1221	}
1296		1222
1297	if (insert_ob_in_map(more, more->map, originator, flag) == NULL) {	1223	if (insert_ob_in_map (more, more->map, originator, flag) == NULL)
		1224	{
1298	if ( ! op->head)	1225	if (!op->head)
1299	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");	1226	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");
		1227
1300	return NULL;	1228	return 0;
1301	}	1229	}
1302	}	1230	}
		1231
1303	CLEAR_FLAG(op,FLAG_REMOVED);	1232	CLEAR_FLAG (op, FLAG_REMOVED);
1304		1233
1305	/* Ideally, the caller figures this out. However, it complicates a lot	1234	/* Ideally, the caller figures this out. However, it complicates a lot
1306	* of areas of callers (eg, anything that uses find_free_spot would now	1235	* of areas of callers (eg, anything that uses find_free_spot would now
1307	* need extra work	1236	* need extra work
1308	*/	1237	*/
1309	op->map=get_map_from_coord(m, &op->x, &op->y);	1238	op->map = get_map_from_coord (m, &op->x, &op->y);
1310	x = op->x;	1239	x = op->x;
1311	y = op->y;	1240	y = op->y;
1312		1241
1313	/* this has to be done after we translate the coordinates.	1242	/* this has to be done after we translate the coordinates.
1314	*/	1243	*/
1315	if(op->nrof && !(flag & INS_NO_MERGE)) {	1244	if (op->nrof && !(flag & INS_NO_MERGE))
1316	for(tmp=GET_MAP_OB(op->map,x,y);tmp!=NULL;tmp=tmp->above)	1245	for (tmp = GET_MAP_OB (op->map, x, y); tmp; tmp = tmp->above)
1317	if (CAN_MERGE(op,tmp)) {	1246	if (object::can_merge (op, tmp))
		1247	{
1318	op->nrof+=tmp->nrof;	1248	op->nrof += tmp->nrof;
1319	remove_ob(tmp);	1249	tmp->destroy ();
1320	free_object(tmp);	1250	}
		1251
		1252	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */
		1253	CLEAR_FLAG (op, FLAG_INV_LOCKED);
		1254
		1255	if (!QUERY_FLAG (op, FLAG_ALIVE))
		1256	CLEAR_FLAG (op, FLAG_NO_STEAL);
		1257
		1258	if (flag & INS_BELOW_ORIGINATOR)
		1259	{
		1260	if (originator->map != op->map || originator->x != op->x || originator->y != op->y)
		1261	{
		1262	LOG (llevError, "insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");
		1263	abort ();
		1264	}
		1265
		1266	op->above = originator;
		1267	op->below = originator->below;
		1268
		1269	if (op->below)
		1270	op->below->above = op;
		1271	else
		1272	op->ms ().bot = op;
		1273
		1274	/* since *below* originator, no need to update top */
		1275	originator->below = op;
		1276	}
		1277	else
		1278	{
		1279	/* If there are other objects, then */
		1280	if ((!(flag & INS_MAP_LOAD)) && ((top = GET_MAP_OB (op->map, op->x, op->y)) != NULL))
		1281	{
		1282	object *last = 0;
		1283
		1284	/*
		1285	* If there are multiple objects on this space, we do some trickier handling.
		1286	* We've already dealt with merging if appropriate.
		1287	* Generally, we want to put the new object on top. But if
		1288	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last
		1289	* floor, we want to insert above that and no further.
		1290	* Also, if there are spell objects on this space, we stop processing
		1291	* once we get to them. This reduces the need to traverse over all of
		1292	* them when adding another one - this saves quite a bit of cpu time
		1293	* when lots of spells are cast in one area. Currently, it is presumed
		1294	* that flying non pickable objects are spell objects.
		1295	*/
		1296	while (top)
		1297	{
		1298	if (QUERY_FLAG (top, FLAG_IS_FLOOR) || QUERY_FLAG (top, FLAG_OVERLAY_FLOOR))
		1299	floor = top;
		1300
		1301	if (QUERY_FLAG (top, FLAG_NO_PICK) && (top->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (top, FLAG_IS_FLOOR))
		1302	{
		1303	/* We insert above top, so we want this object below this */
		1304	top = top->below;
		1305	break;
		1306	}
		1307
		1308	last = top;
		1309	top = top->above;
1321	}	1310	}
1322	}
1323		1311
1324	CLEAR_FLAG(op,FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */	1312	/* Don't want top to be NULL, so set it to the last valid object */
1325	CLEAR_FLAG(op, FLAG_INV_LOCKED);	1313	top = last;
1326	if (!QUERY_FLAG(op, FLAG_ALIVE))
1327	CLEAR_FLAG(op, FLAG_NO_STEAL);
1328		1314
1329	if (flag & INS_BELOW_ORIGINATOR) {	1315	/* We let update_position deal with figuring out what the space
1330	if (originator->map != op->map || originator->x != op->x ||	1316	* looks like instead of lots of conditions here.
1331	originator->y != op->y) {	1317	* makes things faster, and effectively the same result.
1332	LOG(llevError,"insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");
1333	abort();
1334	}
1335	op->above = originator;
1336	op->below = originator->below;
1337	if (op->below) op->below->above = op;
1338	else SET_MAP_OB(op->map, op->x, op->y, op);
1339	/* since *below* originator, no need to update top */
1340	originator->below = op;
1341	} else {
1342	/* If there are other objects, then */
1343	if((! (flag & INS_MAP_LOAD)) && ((top=GET_MAP_OB(op->map,op->x,op->y))!=NULL)) {
1344	object *last=NULL;
1345	/*	1318	*/
1346	* If there are multiple objects on this space, we do some trickier handling.	1319
1347	* We've already dealt with merging if appropriate.	1320	/* Have object 'fall below' other objects that block view.
1348	* Generally, we want to put the new object on top. But if	1321	* Unless those objects are exits, type 66
1349	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last	1322	* If INS_ON_TOP is used, don't do this processing
1350	* floor, we want to insert above that and no further.	1323	* Need to find the object that in fact blocks view, otherwise
1351	* Also, if there are spell objects on this space, we stop processing	1324	* stacking is a bit odd.
1352	* once we get to them. This reduces the need to traverse over all of	1325	*/
1353	* them when adding another one - this saves quite a bit of cpu time	1326	if (!(flag & INS_ON_TOP) &&
1354	* when lots of spells are cast in one area. Currently, it is presumed	1327	(get_map_flags (op->map, 0, op->x, op->y, 0, 0) & P_BLOCKSVIEW) && (op->face && !op->face->visibility))
1355	* that flying non pickable objects are spell objects.	1328	{
		1329	for (last = top; last != floor; last = last->below)
		1330	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))
		1331	break;
		1332	/* Check to see if we found the object that blocks view,
		1333	* and make sure we have a below pointer for it so that
		1334	* we can get inserted below this one, which requires we
		1335	* set top to the object below us.
1356	*/	1336	*/
1357		1337	if (last && last->below && last != floor)
1358	while (top != NULL) {
1359	if (QUERY_FLAG(top, FLAG_IS_FLOOR) ||
1360	QUERY_FLAG(top, FLAG_OVERLAY_FLOOR)) floor = top;
1361	if (QUERY_FLAG(top, FLAG_NO_PICK)
1362	&& (top->move_type & (MOVE_FLY_LOW |MOVE_FLY_HIGH))
1363	&& !QUERY_FLAG(top, FLAG_IS_FLOOR))
1364	{
1365	/* We insert above top, so we want this object below this */
1366	top=top->below;
1367	break;
1368	}
1369	last = top;
1370	top = top->above;	1338	top = last->below;
1371	}	1339	}
1372	/* Don't want top to be NULL, so set it to the last valid object */
1373	top = last;
1374
1375	/* We let update_position deal with figuring out what the space
1376	* looks like instead of lots of conditions here.
1377	* makes things faster, and effectively the same result.
1378	*/
1379
1380	/* Have object 'fall below' other objects that block view.
1381	* Unless those objects are exits, type 66
1382	* If INS_ON_TOP is used, don't do this processing
1383	* Need to find the object that in fact blocks view, otherwise
1384	* stacking is a bit odd.
1385	*/
1386	if (!(flag & INS_ON_TOP) &&
1387	(get_map_flags(op->map, NULL, op->x, op->y, NULL, NULL) & P_BLOCKSVIEW) &&
1388	(op->face && !op->face->visibility)) {
1389	for (last=top; last != floor; last=last->below)
1390	if (QUERY_FLAG(last, FLAG_BLOCKSVIEW)&&(last->type != EXIT)) break;
1391	/* Check to see if we found the object that blocks view,
1392	* and make sure we have a below pointer for it so that
1393	* we can get inserted below this one, which requires we
1394	* set top to the object below us.
1395	*/
1396	if (last && last->below && last != floor) top=last->below;
1397	}
1398	} /* If objects on this space */	1340	} /* If objects on this space */
		1341
1399	if (flag & INS_MAP_LOAD)	1342	if (flag & INS_MAP_LOAD)
1400	top = GET_MAP_TOP(op->map,op->x,op->y);	1343	top = GET_MAP_TOP (op->map, op->x, op->y);
		1344
1401	if (flag & INS_ABOVE_FLOOR_ONLY) top = floor;	1345	if (flag & INS_ABOVE_FLOOR_ONLY)
		1346	top = floor;
1402		1347
1403	/* Top is the object that our object (op) is going to get inserted above.	1348	/* Top is the object that our object (op) is going to get inserted above.
1404	*/	1349	*/
1405		1350
1406	/* First object on this space */	1351	/* First object on this space */
1407	if (!top) {	1352	if (!top)
		1353	{
1408	op->above = GET_MAP_OB(op->map, op->x, op->y);	1354	op->above = GET_MAP_OB (op->map, op->x, op->y);
		1355
		1356	if (op->above)
1409	if (op->above) op->above->below = op;	1357	op->above->below = op;
		1358
1410	op->below = NULL;	1359	op->below = 0;
1411	SET_MAP_OB(op->map, op->x, op->y, op);	1360	op->ms ().bot = op;
		1361	}
		1362	else
1412	} else { /* get inserted into the stack above top */	1363	{ /* get inserted into the stack above top */
1413	op->above = top->above;	1364	op->above = top->above;
		1365
		1366	if (op->above)
1414	if (op->above) op->above->below = op;	1367	op->above->below = op;
		1368
1415	op->below = top;	1369	op->below = top;
1416	top->above = op;	1370	top->above = op;
1417	}	1371	}
		1372
1418	if (op->above==NULL)	1373	if (!op->above)
1419	SET_MAP_TOP(op->map,op->x, op->y, op);	1374	op->ms ().top = op;
1420	} /* else not INS_BELOW_ORIGINATOR */	1375	} /* else not INS_BELOW_ORIGINATOR */
1421		1376
1422	if(op->type==PLAYER)	1377	if (op->type == PLAYER)
		1378	{
1423	op->contr->do_los=1;	1379	op->contr->do_los = 1;
		1380	++op->map->players;
		1381	op->map->touch ();
		1382	}
1424		1383
		1384	op->map->dirty = true;
		1385
1425	/* If we have a floor, we know the player, if any, will be above	1386	/* If we have a floor, we know the player, if any, will be above
1426	* it, so save a few ticks and start from there.	1387	* it, so save a few ticks and start from there.
1427	*/	1388	*/
1428	if (!(flag & INS_MAP_LOAD))	1389	if (!(flag & INS_MAP_LOAD))
1429	for(tmp=floor?floor:GET_MAP_OB(op->map,op->x,op->y);tmp!=NULL;tmp=tmp->above) {	1390	if (object *pl = op->ms ().player ())
1430	if (tmp->type == PLAYER)	1391	if (pl->contr->ns)
1431	tmp->contr->socket.update_look=1;	1392	pl->contr->ns->floorbox_update ();
1432	}
1433		1393
1434	/* If this object glows, it may affect lighting conditions that are	1394	/* If this object glows, it may affect lighting conditions that are
1435	* visible to others on this map. But update_all_los is really	1395	* visible to others on this map. But update_all_los is really
1436	* an inefficient way to do this, as it means los for all players	1396	* an inefficient way to do this, as it means los for all players
1437	* on the map will get recalculated. The players could very well	1397	* on the map will get recalculated. The players could very well
1438	* be far away from this change and not affected in any way -	1398	* be far away from this change and not affected in any way -
1439	* this should get redone to only look for players within range,	1399	* this should get redone to only look for players within range,
1440	* or just updating the P_NEED_UPDATE for spaces within this area	1400	* or just updating the P_UPTODATE for spaces within this area
1441	* of effect may be sufficient.	1401	* of effect may be sufficient.
1442	*/	1402	*/
1443	if(MAP_DARKNESS(op->map) && (op->glow_radius != 0))	1403	if (op->map->darkness && (op->glow_radius != 0))
1444	update_all_los(op->map, op->x, op->y);	1404	update_all_los (op->map, op->x, op->y);
1445		1405
1446
1447	/* updates flags (blocked, alive, no magic, etc) for this map space */	1406	/* updates flags (blocked, alive, no magic, etc) for this map space */
1448	update_object(op,UP_OBJ_INSERT);	1407	update_object (op, UP_OBJ_INSERT);
1449		1408
		1409	INVOKE_OBJECT (INSERT, op);
1450		1410
1451	/* Don't know if moving this to the end will break anything. However,	1411	/* Don't know if moving this to the end will break anything. However,
1452	* we want to have update_look set above before calling this.	1412	* we want to have floorbox_update called before calling this.
1453	*	1413	*
1454	* check_move_on() must be after this because code called from	1414	* check_move_on() must be after this because code called from
1455	* check_move_on() depends on correct map flags (so functions like	1415	* check_move_on() depends on correct map flags (so functions like
1456	* blocked() and wall() work properly), and these flags are updated by	1416	* blocked() and wall() work properly), and these flags are updated by
1457	* update_object().	1417	* update_object().
1458	*/	1418	*/
1459		1419
1460	/* if this is not the head or flag has been passed, don't check walk on status */	1420	/* if this is not the head or flag has been passed, don't check walk on status */
1461
1462	if (!(flag & INS_NO_WALK_ON) && !op->head) {	1421	if (!(flag & INS_NO_WALK_ON) && !op->head)
		1422	{
1463	if (check_move_on(op, originator))	1423	if (check_move_on (op, originator))
1464	return NULL;	1424	return 0;
1465		1425
1466	/* If we are a multi part object, lets work our way through the check	1426	/* If we are a multi part object, lets work our way through the check
1467	* walk on's.	1427	* walk on's.
1468	*/	1428	*/
1469	for (tmp=op->more; tmp!=NULL; tmp=tmp->more)	1429	for (tmp = op->more; tmp != NULL; tmp = tmp->more)
1470	if (check_move_on (tmp, originator))	1430	if (check_move_on (tmp, originator))
1471	return NULL;	1431	return 0;
1472	}	1432	}
		1433
1473	return op;	1434	return op;
1474	}	1435	}
1475		1436
1476	/* this function inserts an object in the map, but if it	1437	/* this function inserts an object in the map, but if it
1477	* finds an object of its own type, it'll remove that one first.	1438	* finds an object of its own type, it'll remove that one first.
1478	* op is the object to insert it under: supplies x and the map.	1439	* op is the object to insert it under: supplies x and the map.
1479	*/	1440	*/
		1441	void
1480	void replace_insert_ob_in_map(const char *arch_string, object *op) {	1442	replace_insert_ob_in_map (const char *arch_string, object *op)
1481	object *tmp;	1443	{
1482	object *tmp1;	1444	object *tmp, *tmp1;
1483		1445
1484	/* first search for itself and remove any old instances */	1446	/* first search for itself and remove any old instances */
1485		1447
1486	for(tmp=GET_MAP_OB(op->map,op->x,op->y); tmp!=NULL; tmp=tmp->above) {	1448	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)
1487	if(!strcmp(tmp->arch->name,arch_string)) /* same archetype */ {	1449	if (!strcmp (tmp->arch->name, arch_string)) /* same archetype */
1488	remove_ob(tmp);	1450	tmp->destroy ();
1489	free_object(tmp);
1490	}
1491	}
1492		1451
1493	tmp1=arch_to_object(find_archetype(arch_string));	1452	tmp1 = arch_to_object (archetype::find (arch_string));
1494		1453
1495		1454	tmp1->x = op->x;
1496	tmp1->x = op->x; tmp1->y = op->y;	1455	tmp1->y = op->y;
1497	insert_ob_in_map(tmp1,op->map,op,0);	1456	insert_ob_in_map (tmp1, op->map, op, 0);
1498	}	1457	}
		1458
		1459	object *
		1460	object::insert_at (object *where, object *originator, int flags)
		1461	{
		1462	where->map->insert (this, where->x, where->y, originator, flags);
		1463	}
1499		1464
1500	/*	1465	/*
1501	* get_split_ob(ob,nr) splits up ob into two parts. The part which	1466	* get_split_ob(ob,nr) splits up ob into two parts. The part which
1502	* is returned contains nr objects, and the remaining parts contains	1467	* is returned contains nr objects, and the remaining parts contains
1503	* the rest (or is removed and freed if that number is 0).	1468	* the rest (or is removed and freed if that number is 0).
1504	* On failure, NULL is returned, and the reason put into the	1469	* On failure, NULL is returned, and the reason put into the
1505	* global static errmsg array.	1470	* global static errmsg array.
1506	*/	1471	*/
1507		1472	object *
1508	object *get_split_ob(object *orig_ob, uint32 nr) {	1473	get_split_ob (object *orig_ob, uint32 nr)
		1474	{
1509	object *newob;	1475	object *newob;
1510	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);	1476	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);
1511		1477
1512	if(orig_ob->nrof<nr) {	1478	if (orig_ob->nrof < nr)
1513	sprintf(errmsg,"There are only %d %ss.",	1479	{
1514	orig_ob->nrof?orig_ob->nrof:1, &orig_ob->name);	1480	sprintf (errmsg, "There are only %d %ss.", orig_ob->nrof ? orig_ob->nrof : 1, &orig_ob->name);
1515	return NULL;	1481	return NULL;
1516	}	1482	}
		1483
1517	newob = object_create_clone(orig_ob);	1484	newob = object_create_clone (orig_ob);
		1485
1518	if((orig_ob->nrof-=nr)<1) {	1486	if ((orig_ob->nrof -= nr) < 1)
1519	if ( ! is_removed)	1487	orig_ob->destroy (1);
1520	remove_ob(orig_ob);
1521	free_object2(orig_ob, 1);
1522	}
1523	else if ( ! is_removed) {	1488	else if (!is_removed)
		1489	{
1524	if(orig_ob->env!=NULL)	1490	if (orig_ob->env != NULL)
1525	sub_weight (orig_ob->env,orig_ob->weight*nr);	1491	sub_weight (orig_ob->env, orig_ob->weight * nr);
1526	if (orig_ob->env == NULL && orig_ob->map->in_memory!=MAP_IN_MEMORY) {	1492	if (orig_ob->env == NULL && orig_ob->map->in_memory != MAP_IN_MEMORY)
		1493	{
1527	strcpy(errmsg, "Tried to split object whose map is not in memory.");	1494	strcpy (errmsg, "Tried to split object whose map is not in memory.");
1528	LOG(llevDebug,
1529	"Error, Tried to split object whose map is not in memory.\n");	1495	LOG (llevDebug, "Error, Tried to split object whose map is not in memory.\n");
1530	return NULL;	1496	return NULL;
1531	}	1497	}
1532	}	1498	}
		1499
1533	newob->nrof=nr;	1500	newob->nrof = nr;
1534		1501
1535	return newob;	1502	return newob;
1536	}	1503	}
1537		1504
1538	/*	1505	/*
1539	* decrease_ob_nr(object, number) decreases a specified number from	1506	* decrease_ob_nr(object, number) decreases a specified number from
1540	* the amount of an object. If the amount reaches 0, the object	1507	* the amount of an object. If the amount reaches 0, the object
1541	* is subsequently removed and freed.	1508	* is subsequently removed and freed.
1542	*	1509	*
1543	* Return value: 'op' if something is left, NULL if the amount reached 0	1510	* Return value: 'op' if something is left, NULL if the amount reached 0
1544	*/	1511	*/
1545		1512
		1513	object *
1546	object *decrease_ob_nr (object *op, uint32 i)	1514	decrease_ob_nr (object *op, uint32 i)
1547	{	1515	{
1548	object *tmp;	1516	object *tmp;
1549	player *pl;
1550		1517
1551	if (i == 0) /* objects with op->nrof require this check */	1518	if (i == 0) /* objects with op->nrof require this check */
1552	return op;	1519	return op;
1553		1520
1554	if (i > op->nrof)	1521	if (i > op->nrof)
1555	i = op->nrof;	1522	i = op->nrof;
1556		1523
1557	if (QUERY_FLAG (op, FLAG_REMOVED))	1524	if (QUERY_FLAG (op, FLAG_REMOVED))
		1525	op->nrof -= i;
		1526	else if (op->env)
		1527	{
		1528	/* is this object in the players inventory, or sub container
		1529	* therein?
		1530	*/
		1531	tmp = op->in_player ();
		1532	/* nope. Is this a container the player has opened?
		1533	* If so, set tmp to that player.
		1534	* IMO, searching through all the players will mostly
		1535	* likely be quicker than following op->env to the map,
		1536	* and then searching the map for a player.
		1537	*/
		1538	if (!tmp)
		1539	for_all_players (pl)
		1540	if (pl->ob->container == op->env)
		1541	{
		1542	tmp = pl->ob;
		1543	break;
		1544	}
		1545
		1546	if (i < op->nrof)
		1547	{
		1548	sub_weight (op->env, op->weight * i);
		1549	op->nrof -= i;
		1550	if (tmp)
		1551	esrv_send_item (tmp, op);
		1552	}
		1553	else
		1554	{
		1555	op->remove ();
		1556	op->nrof = 0;
		1557	if (tmp)
		1558	esrv_del_item (tmp->contr, op->count);
		1559	}
1558	{	1560	}
		1561	else
		1562	{
		1563	object *above = op->above;
		1564
		1565	if (i < op->nrof)
1559	op->nrof -= i;	1566	op->nrof -= i;
1560	}	1567	else
1561	else if (op->env != NULL)
1562	{
1563	/* is this object in the players inventory, or sub container
1564	* therein?
1565	*/
1566	tmp = is_player_inv (op->env);
1567	/* nope. Is this a container the player has opened?
1568	* If so, set tmp to that player.
1569	* IMO, searching through all the players will mostly
1570	* likely be quicker than following op->env to the map,
1571	* and then searching the map for a player.
1572	*/
1573	if (!tmp) {
1574	for (pl=first_player; pl; pl=pl->next)
1575	if (pl->ob->container == op->env) break;
1576	if (pl) tmp=pl->ob;
1577	else tmp=NULL;
1578	}	1568	{
1579
1580	if (i < op->nrof) {
1581	sub_weight (op->env, op->weight * i);
1582	op->nrof -= i;
1583	if (tmp) {
1584	esrv_send_item(tmp, op);
1585	}
1586	} else {
1587	remove_ob (op);	1569	op->remove ();
1588	op->nrof = 0;	1570	op->nrof = 0;
1589	if (tmp) {
1590	esrv_del_item(tmp->contr, op->count);
1591	}	1571	}
1592	}
1593	}
1594	else
1595	{
1596	object *above = op->above;
1597		1572
1598	if (i < op->nrof) {
1599	op->nrof -= i;
1600	} else {
1601	remove_ob (op);
1602	op->nrof = 0;
1603	}
1604	/* Since we just removed op, op->above is null */	1573	/* Since we just removed op, op->above is null */
1605	for (tmp = above; tmp != NULL; tmp = tmp->above)	1574	for (tmp = above; tmp; tmp = tmp->above)
1606	if (tmp->type == PLAYER) {	1575	if (tmp->type == PLAYER)
		1576	{
1607	if (op->nrof)	1577	if (op->nrof)
1608	esrv_send_item(tmp, op);	1578	esrv_send_item (tmp, op);
1609	else	1579	else
1610	esrv_del_item(tmp->contr, op->count);	1580	esrv_del_item (tmp->contr, op->count);
1611	}	1581	}
1612	}	1582	}
1613		1583
1614	if (op->nrof) {	1584	if (op->nrof)
1615	return op;	1585	return op;
1616	} else {	1586	else
1617	free_object (op);	1587	{
		1588	op->destroy ();
1618	return NULL;	1589	return 0;
1619	}	1590	}
1620	}	1591	}
1621		1592
1622	/*	1593	/*
1623	* add_weight(object, weight) adds the specified weight to an object,	1594	* add_weight(object, weight) adds the specified weight to an object,
1624	* and also updates how much the environment(s) is/are carrying.	1595	* and also updates how much the environment(s) is/are carrying.
1625	*/	1596	*/
1626		1597
		1598	void
1627	void add_weight (object *op, signed long weight) {	1599	add_weight (object *op, signed long weight)
		1600	{
1628	while (op!=NULL) {	1601	while (op != NULL)
		1602	{
1629	if (op->type == CONTAINER) {	1603	if (op->type == CONTAINER)
1630	weight=(signed long)(weight*(100-op->stats.Str)/100);	1604	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1631	}	1605
1632	op->carrying+=weight;	1606	op->carrying += weight;
1633	op=op->env;	1607	op = op->env;
1634	}	1608	}
1635	}	1609	}
1636		1610
		1611	object *
		1612	insert_ob_in_ob (object *op, object *where)
		1613	{
		1614	if (!where)
		1615	{
		1616	char *dump = dump_object (op);
		1617	LOG (llevError, "Trying to put object in NULL.\n%s\n", dump);
		1618	free (dump);
		1619	return op;
		1620	}
		1621
		1622	if (where->head)
		1623	{
		1624	LOG (llevDebug, "Warning: Tried to insert object into wrong part of multipart object.\n");
		1625	where = where->head;
		1626	}
		1627
		1628	return where->insert (op);
		1629	}
		1630
1637	/*	1631	/*
1638	* insert_ob_in_ob(op,environment):	1632	* env->insert (op)
1639	* This function inserts the object op in the linked list	1633	* This function inserts the object op in the linked list
1640	* inside the object environment.	1634	* inside the object environment.
1641	*	1635	*
1642	* Eneq(@csd.uu.se): Altered insert_ob_in_ob to make things picked up enter
1643	* the inventory at the last position or next to other objects of the same
1644	* type.
1645	* Frank: Now sorted by type, archetype and magic!
1646	*
1647	* The function returns now pointer to inserted item, and return value can	1636	* The function returns now pointer to inserted item, and return value can
1648	* be != op, if items are merged. -Tero	1637	* be != op, if items are merged. -Tero
1649	*/	1638	*/
1650		1639
1651	object *insert_ob_in_ob(object *op,object *where) {	1640	object *
		1641	object::insert (object *op)
		1642	{
1652	object *tmp, *otmp;	1643	object *tmp, *otmp;
1653		1644
1654	if(!QUERY_FLAG(op,FLAG_REMOVED)) {	1645	if (!QUERY_FLAG (op, FLAG_REMOVED))
1655	dump_object(op);	1646	op->remove ();
1656	LOG(llevError,"Trying to insert (ob) inserted object.\n%s\n", errmsg);	1647
1657	return op;
1658	}
1659	if(where==NULL) {
1660	dump_object(op);
1661	LOG(llevError,"Trying to put object in NULL.\n%s\n", errmsg);
1662	return op;
1663	}
1664	if (where->head) {
1665	LOG(llevDebug,
1666	"Warning: Tried to insert object wrong part of multipart object.\n");
1667	where = where->head;
1668	}
1669	if (op->more) {	1648	if (op->more)
		1649	{
1670	LOG(llevError, "Tried to insert multipart object %s (%d)\n",	1650	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);
1671	&op->name, op->count);
1672	return op;	1651	return op;
1673	}	1652	}
		1653
1674	CLEAR_FLAG(op, FLAG_OBJ_ORIGINAL);	1654	CLEAR_FLAG (op, FLAG_OBJ_ORIGINAL);
1675	CLEAR_FLAG(op, FLAG_REMOVED);	1655	CLEAR_FLAG (op, FLAG_REMOVED);
1676	if(op->nrof) {	1656	if (op->nrof)
		1657	{
1677	for(tmp=where->inv;tmp!=NULL;tmp=tmp->below)	1658	for (tmp = inv; tmp != NULL; tmp = tmp->below)
1678	if ( CAN_MERGE(tmp,op) ) {	1659	if (object::can_merge (tmp, op))
		1660	{
1679	/* return the original object and remove inserted object	1661	/* return the original object and remove inserted object
1680	(client needs the original object) */	1662	(client needs the original object) */
1681	tmp->nrof += op->nrof;	1663	tmp->nrof += op->nrof;
1682	/* Weight handling gets pretty funky. Since we are adding to	1664	/* Weight handling gets pretty funky. Since we are adding to
1683	* tmp->nrof, we need to increase the weight.	1665	* tmp->nrof, we need to increase the weight.
1684	*/	1666	*/
1685	add_weight (where, op->weight*op->nrof);	1667	add_weight (this, op->weight * op->nrof);
1686	SET_FLAG(op, FLAG_REMOVED);	1668	SET_FLAG (op, FLAG_REMOVED);
1687	free_object(op); /* free the inserted object */	1669	op->destroy (); /* free the inserted object */
1688	op = tmp;	1670	op = tmp;
1689	remove_ob (op); /* and fix old object's links */	1671	op->remove (); /* and fix old object's links */
1690	CLEAR_FLAG(op, FLAG_REMOVED);	1672	CLEAR_FLAG (op, FLAG_REMOVED);
1691	break;	1673	break;
1692	}	1674	}
1693		1675
1694	/* I assume combined objects have no inventory	1676	/* I assume combined objects have no inventory
1695	* We add the weight - this object could have just been removed	1677	* We add the weight - this object could have just been removed
1696	* (if it was possible to merge). calling remove_ob will subtract	1678	* (if it was possible to merge). calling remove_ob will subtract
1697	* the weight, so we need to add it in again, since we actually do	1679	* the weight, so we need to add it in again, since we actually do
1698	* the linking below	1680	* the linking below
1699	*/	1681	*/
1700	add_weight (where, op->weight*op->nrof);	1682	add_weight (this, op->weight * op->nrof);
		1683	}
1701	} else	1684	else
1702	add_weight (where, (op->weight+op->carrying));	1685	add_weight (this, (op->weight + op->carrying));
1703		1686
1704	otmp=is_player_inv(where);	1687	otmp = this->in_player ();
1705	if (otmp&&otmp->contr!=NULL) {	1688	if (otmp && otmp->contr)
1706	if (!QUERY_FLAG(otmp,FLAG_NO_FIX_PLAYER))	1689	if (!QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1707	fix_player(otmp);	1690	otmp->update_stats ();
1708	}
1709		1691
1710	op->map=NULL;	1692	op->map = 0;
1711	op->env=where;	1693	op->env = this;
1712	op->above=NULL;	1694	op->above = 0;
1713	op->below=NULL;	1695	op->below = 0;
1714	op->x=0,op->y=0;	1696	op->x = 0, op->y = 0;
1715		1697
1716	/* reset the light list and los of the players on the map */	1698	/* reset the light list and los of the players on the map */
1717	if((op->glow_radius!=0)&&where->map)	1699	if ((op->glow_radius != 0) && map)
1718	{	1700	{
1719	#ifdef DEBUG_LIGHTS	1701	#ifdef DEBUG_LIGHTS
1720	LOG(llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n",	1702	LOG (llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n", op->name);
1721	op->name);
1722	#endif /* DEBUG_LIGHTS */	1703	#endif /* DEBUG_LIGHTS */
1723	if (MAP_DARKNESS(where->map)) update_all_los(where->map, where->x, where->y);	1704	if (map->darkness)
		1705	update_all_los (map, x, y);
1724	}	1706	}
1725		1707
1726	/* Client has no idea of ordering so lets not bother ordering it here.	1708	/* Client has no idea of ordering so lets not bother ordering it here.
1727	* It sure simplifies this function...	1709	* It sure simplifies this function...
1728	*/	1710	*/
1729	if (where->inv==NULL)	1711	if (!inv)
1730	where->inv=op;	1712	inv = op;
1731	else {	1713	else
		1714	{
1732	op->below = where->inv;	1715	op->below = inv;
1733	op->below->above = op;	1716	op->below->above = op;
1734	where->inv = op;	1717	inv = op;
1735	}	1718	}
		1719
		1720	INVOKE_OBJECT (INSERT, this);
		1721
1736	return op;	1722	return op;
1737	}	1723	}
1738		1724
1739	/*	1725	/*
1740	* Checks if any objects has a move_type that matches objects	1726	* Checks if any objects has a move_type that matches objects
…		…
1754	*	1740	*
1755	* MSW 2001-07-08: Check all objects on space, not just those below	1741	* MSW 2001-07-08: Check all objects on space, not just those below
1756	* object being inserted. insert_ob_in_map may not put new objects	1742	* object being inserted. insert_ob_in_map may not put new objects
1757	* on top.	1743	* on top.
1758	*/	1744	*/
1759		1745	int
1760	int check_move_on (object *op, object *originator)	1746	check_move_on (object *op, object *originator)
1761	{	1747	{
1762	object *tmp;	1748	object *tmp;
1763	tag_t tag;
1764	mapstruct *m=op->map;	1749	maptile *m = op->map;
1765	int x=op->x, y=op->y;	1750	int x = op->x, y = op->y;
		1751
1766	MoveType move_on, move_slow, move_block;	1752	MoveType move_on, move_slow, move_block;
1767		1753
1768	if(QUERY_FLAG(op,FLAG_NO_APPLY))	1754	if (QUERY_FLAG (op, FLAG_NO_APPLY))
1769	return 0;	1755	return 0;
1770		1756
1771	tag = op->count;
1772
1773	move_on = GET_MAP_MOVE_ON(op->map, op->x, op->y);	1757	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);
1774	move_slow = GET_MAP_MOVE_SLOW(op->map, op->x, op->y);	1758	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);
1775	move_block = GET_MAP_MOVE_BLOCK(op->map, op->x, op->y);	1759	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);
1776		1760
1777	/* if nothing on this space will slow op down or be applied,	1761	/* if nothing on this space will slow op down or be applied,
1778	* no need to do checking below. have to make sure move_type	1762	* no need to do checking below. have to make sure move_type
1779	* is set, as lots of objects don't have it set - we treat that	1763	* is set, as lots of objects don't have it set - we treat that
1780	* as walking.	1764	* as walking.
1781	*/	1765	*/
1782	if (op->move_type && !(op->move_type & move_on) && !(op->move_type & move_slow))	1766	if (op->move_type && !(op->move_type & move_on) && !(op->move_type & move_slow))
1783	return 0;	1767	return 0;
1784		1768
1785	/* This is basically inverse logic of that below - basically,	1769	/* This is basically inverse logic of that below - basically,
1786	* if the object can avoid the move on or slow move, they do so,	1770	* if the object can avoid the move on or slow move, they do so,
1787	* but can't do it if the alternate movement they are using is	1771	* but can't do it if the alternate movement they are using is
1788	* blocked. Logic on this seems confusing, but does seem correct.	1772	* blocked. Logic on this seems confusing, but does seem correct.
1789	*/	1773	*/
1790	if ((op->move_type & ~move_on & ~move_block) != 0 &&	1774	if ((op->move_type & ~move_on & ~move_block) != 0 && (op->move_type & ~move_slow & ~move_block) != 0)
1791	(op->move_type & ~move_slow & ~move_block) != 0) return 0;	1775	return 0;
1792		1776
1793	/* The objects have to be checked from top to bottom.	1777	/* The objects have to be checked from top to bottom.
1794	* Hence, we first go to the top:	1778	* Hence, we first go to the top:
1795	*/	1779	*/
1796		1780
1797	for (tmp=GET_MAP_OB(op->map, op->x, op->y); tmp!=NULL &&	1781	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp && tmp->above; tmp = tmp->above)
1798	tmp->above!=NULL; tmp=tmp->above) {	1782	{
1799	/* Trim the search when we find the first other spell effect	1783	/* Trim the search when we find the first other spell effect
1800	* this helps performance so that if a space has 50 spell objects,	1784	* this helps performance so that if a space has 50 spell objects,
1801	* we don't need to check all of them.	1785	* we don't need to check all of them.
1802	*/	1786	*/
1803	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG(tmp, FLAG_NO_PICK)) break;	1787	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG (tmp, FLAG_NO_PICK))
		1788	break;
		1789	}
		1790
		1791	for (; tmp; tmp = tmp->below)
1804	}	1792	{
1805	for(;tmp!=NULL; tmp=tmp->below) {	1793	if (tmp == op)
1806	if (tmp == op) continue; /* Can't apply yourself */	1794	continue; /* Can't apply yourself */
1807		1795
1808	/* Check to see if one of the movement types should be slowed down.	1796	/* Check to see if one of the movement types should be slowed down.
1809	* Second check makes sure that the movement types not being slowed	1797	* Second check makes sure that the movement types not being slowed
1810	* (~slow_move) is not blocked on this space - just because the	1798	* (~slow_move) is not blocked on this space - just because the
1811	* space doesn't slow down swimming (for example), if you can't actually	1799	* space doesn't slow down swimming (for example), if you can't actually
1812	* swim on that space, can't use it to avoid the penalty.	1800	* swim on that space, can't use it to avoid the penalty.
1813	*/	1801	*/
1814	if (!QUERY_FLAG(op, FLAG_WIZPASS)) {	1802	if (!QUERY_FLAG (op, FLAG_WIZPASS))
		1803	{
1815	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||	1804	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||
1816	((op->move_type & tmp->move_slow) &&
1817	(op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0)) {	1805	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))
		1806	{
1818		1807
1819	float diff;	1808	float
1820
1821	diff = tmp->move_slow_penalty*FABS(op->speed);	1809	diff = tmp->move_slow_penalty * FABS (op->speed);
		1810
1822	if (op->type == PLAYER) {	1811	if (op->type == PLAYER)
1823	if ((QUERY_FLAG(tmp, FLAG_IS_HILLY) && find_skill_by_number(op, SK_CLIMBING)) ||	1812	if ((QUERY_FLAG (tmp, FLAG_IS_HILLY) && find_skill_by_number (op, SK_CLIMBING)) ||
1824	(QUERY_FLAG(tmp, FLAG_IS_WOODED) && find_skill_by_number(op, SK_WOODSMAN))) {	1813	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))
1825	diff /= 4.0;	1814	diff /= 4.0;
1826	}	1815
1827	}
1828	op->speed_left -= diff;	1816	op->speed_left -= diff;
1829	}	1817	}
1830	}	1818	}
1831		1819
1832	/* Basically same logic as above, except now for actual apply. */	1820	/* Basically same logic as above, except now for actual apply. */
1833	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||	1821	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||
1834	((op->move_type & tmp->move_on) &&
1835	(op->move_type & ~tmp->move_on & ~tmp->move_block)==0)) {	1822	((op->move_type & tmp->move_on) && (op->move_type & ~tmp->move_on & ~tmp->move_block) == 0))
1836		1823	{
1837	move_apply(tmp, op, originator);	1824	move_apply (tmp, op, originator);
		1825
1838	if (was_destroyed (op, tag))	1826	if (op->destroyed ())
1839	return 1;	1827	return 1;
1840		1828
1841	/* what the person/creature stepped onto has moved the object	1829	/* what the person/creature stepped onto has moved the object
1842	* someplace new. Don't process any further - if we did,	1830	* someplace new. Don't process any further - if we did,
1843	* have a feeling strange problems would result.	1831	* have a feeling strange problems would result.
1844	*/	1832	*/
1845	if (op->map != m || op->x != x || op->y != y) return 0;	1833	if (op->map != m || op->x != x || op->y != y)
		1834	return 0;
1846	}	1835	}
1847	}	1836	}
		1837
1848	return 0;	1838	return 0;
1849	}	1839	}
1850		1840
1851	/*	1841	/*
1852	* present_arch(arch, map, x, y) searches for any objects with	1842	* present_arch(arch, map, x, y) searches for any objects with
1853	* a matching archetype at the given map and coordinates.	1843	* a matching archetype at the given map and coordinates.
1854	* The first matching object is returned, or NULL if none.	1844	* The first matching object is returned, or NULL if none.
1855	*/	1845	*/
1856		1846	object *
1857	object *present_arch(const archetype *at, mapstruct *m, int x, int y) {	1847	present_arch (const archetype *at, maptile *m, int x, int y)
1858	object *tmp;	1848	{
1859	if(m==NULL || out_of_map(m,x,y)) {	1849	if (m == NULL || out_of_map (m, x, y))
		1850	{
1860	LOG(llevError,"Present_arch called outside map.\n");	1851	LOG (llevError, "Present_arch called outside map.\n");
1861	return NULL;	1852	return NULL;
1862	}	1853	}
		1854
1863	for(tmp=GET_MAP_OB(m,x,y); tmp != NULL; tmp = tmp->above)	1855	for (object *tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)
1864	if(tmp->arch == at)	1856	if (tmp->arch == at)
1865	return tmp;	1857	return tmp;
		1858
1866	return NULL;	1859	return NULL;
1867	}	1860	}
1868		1861
1869	/*	1862	/*
1870	* present(type, map, x, y) searches for any objects with	1863	* present(type, map, x, y) searches for any objects with
1871	* a matching type variable at the given map and coordinates.	1864	* a matching type variable at the given map and coordinates.
1872	* The first matching object is returned, or NULL if none.	1865	* The first matching object is returned, or NULL if none.
1873	*/	1866	*/
1874		1867	object *
1875	object *present(unsigned char type,mapstruct *m, int x,int y) {	1868	present (unsigned char type, maptile *m, int x, int y)
1876	object *tmp;	1869	{
1877	if(out_of_map(m,x,y)) {	1870	if (out_of_map (m, x, y))
		1871	{
1878	LOG(llevError,"Present called outside map.\n");	1872	LOG (llevError, "Present called outside map.\n");
1879	return NULL;	1873	return NULL;
1880	}	1874	}
		1875
1881	for(tmp=GET_MAP_OB(m,x,y);tmp!=NULL;tmp=tmp->above)	1876	for (object *tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)
1882	if(tmp->type==type)	1877	if (tmp->type == type)
1883	return tmp;	1878	return tmp;
		1879
1884	return NULL;	1880	return NULL;
1885	}	1881	}
1886		1882
1887	/*	1883	/*
1888	* present_in_ob(type, object) searches for any objects with	1884	* present_in_ob(type, object) searches for any objects with
1889	* a matching type variable in the inventory of the given object.	1885	* a matching type variable in the inventory of the given object.
1890	* The first matching object is returned, or NULL if none.	1886	* The first matching object is returned, or NULL if none.
1891	*/	1887	*/
1892		1888	object *
1893	object *present_in_ob(unsigned char type, const object *op) {	1889	present_in_ob (unsigned char type, const object *op)
1894	object *tmp;	1890	{
1895	for(tmp=op->inv;tmp!=NULL;tmp=tmp->below)	1891	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
1896	if(tmp->type==type)	1892	if (tmp->type == type)
1897	return tmp;	1893	return tmp;
		1894
1898	return NULL;	1895	return NULL;
1899	}	1896	}
1900		1897
1901	/*	1898	/*
1902	* present_in_ob (type, str, object) searches for any objects with	1899	* present_in_ob (type, str, object) searches for any objects with
…		…
1910	* str is the string to match against. Note that we match against	1907	* str is the string to match against. Note that we match against
1911	* the object name, not the archetype name. this is so that the	1908	* the object name, not the archetype name. this is so that the
1912	* spell code can use one object type (force), but change it's name	1909	* spell code can use one object type (force), but change it's name
1913	* to be unique.	1910	* to be unique.
1914	*/	1911	*/
1915		1912	object *
1916	object *present_in_ob_by_name(int type, const char *str, const object *op) {	1913	present_in_ob_by_name (int type, const char *str, const object *op)
1917	object *tmp;	1914	{
1918
1919	for(tmp=op->inv; tmp!=NULL; tmp=tmp->below) {	1915	for (object *tmp = op->inv; tmp; tmp = tmp->below)
1920	if ((type==-1 || tmp->type==type) && (!strcmp(str, tmp->name)))	1916	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))
1921	return tmp;	1917	return tmp;
1922	}	1918
1923	return NULL;	1919	return 0;
1924	}	1920	}
1925		1921
1926	/*	1922	/*
1927	* present_arch_in_ob(archetype, object) searches for any objects with	1923	* present_arch_in_ob(archetype, object) searches for any objects with
1928	* a matching archetype in the inventory of the given object.	1924	* a matching archetype in the inventory of the given object.
1929	* The first matching object is returned, or NULL if none.	1925	* The first matching object is returned, or NULL if none.
1930	*/	1926	*/
1931		1927	object *
1932	object *present_arch_in_ob(const archetype *at, const object *op) {	1928	present_arch_in_ob (const archetype *at, const object *op)
1933	object *tmp;	1929	{
1934	for(tmp=op->inv;tmp!=NULL;tmp=tmp->below)	1930	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
1935	if( tmp->arch == at)	1931	if (tmp->arch == at)
1936	return tmp;	1932	return tmp;
		1933
1937	return NULL;	1934	return NULL;
1938	}	1935	}
1939		1936
1940	/*	1937	/*
1941	* activate recursively a flag on an object inventory	1938	* activate recursively a flag on an object inventory
1942	*/	1939	*/
		1940	void
1943	void flag_inv(object*op, int flag){	1941	flag_inv (object *op, int flag)
1944	object *tmp;	1942	{
1945	if(op->inv)	1943	if (op->inv)
1946	for(tmp = op->inv; tmp != NULL; tmp = tmp->below){	1944	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
		1945	{
1947	SET_FLAG(tmp, flag);	1946	SET_FLAG (tmp, flag);
1948	flag_inv(tmp,flag);	1947	flag_inv (tmp, flag);
1949	}	1948	}
		1949	}
		1950
1950	}/*	1951	/*
1951	* desactivate recursively a flag on an object inventory	1952	* deactivate recursively a flag on an object inventory
1952	*/	1953	*/
		1954	void
1953	void unflag_inv(object*op, int flag){	1955	unflag_inv (object *op, int flag)
1954	object *tmp;	1956	{
1955	if(op->inv)	1957	if (op->inv)
1956	for(tmp = op->inv; tmp != NULL; tmp = tmp->below){	1958	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
		1959	{
1957	CLEAR_FLAG(tmp, flag);	1960	CLEAR_FLAG (tmp, flag);
1958	unflag_inv(tmp,flag);	1961	unflag_inv (tmp, flag);
1959	}	1962	}
1960	}	1963	}
1961		1964
1962	/*	1965	/*
1963	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in	1966	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in
1964	* all it's inventory (recursively).	1967	* all it's inventory (recursively).
1965	* If checksums are used, a player will get set_cheat called for	1968	* If checksums are used, a player will get set_cheat called for
1966	* him/her-self and all object carried by a call to this function.	1969	* him/her-self and all object carried by a call to this function.
1967	*/	1970	*/
1968		1971	void
1969	void set_cheat(object *op) {	1972	set_cheat (object *op)
		1973	{
1970	SET_FLAG(op, FLAG_WAS_WIZ);	1974	SET_FLAG (op, FLAG_WAS_WIZ);
1971	flag_inv(op, FLAG_WAS_WIZ);	1975	flag_inv (op, FLAG_WAS_WIZ);
1972	}	1976	}
1973		1977
1974	/*	1978	/*
1975	* find_free_spot(object, map, x, y, start, stop) will search for	1979	* find_free_spot(object, map, x, y, start, stop) will search for
1976	* a spot at the given map and coordinates which will be able to contain	1980	* a spot at the given map and coordinates which will be able to contain
…		…
1990	* because arch_blocked (now ob_blocked) needs to know the movement type	1994	* because arch_blocked (now ob_blocked) needs to know the movement type
1991	* to know if the space in question will block the object. We can't use	1995	* to know if the space in question will block the object. We can't use
1992	* the archetype because that isn't correct if the monster has been	1996	* the archetype because that isn't correct if the monster has been
1993	* customized, changed states, etc.	1997	* customized, changed states, etc.
1994	*/	1998	*/
1995		1999	int
1996	int find_free_spot(const object *ob, mapstruct *m,int x,int y,int start,int stop) {	2000	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)
		2001	{
1997	int i,index=0, flag;	2002	int index = 0, flag;
1998	static int altern[SIZEOFFREE];	2003	int altern[SIZEOFFREE];
1999		2004
2000	for(i=start;i<stop;i++) {	2005	for (int i = start; i < stop; i++)
		2006	{
2001	flag = ob_blocked(ob,m,x+freearr_x[i],y+freearr_y[i]);	2007	flag = ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]);
2002	if(!flag)	2008	if (!flag)
2003	altern[index++]=i;	2009	altern [index++] = i;
2004		2010
2005	/* Basically, if we find a wall on a space, we cut down the search size.	2011	/* Basically, if we find a wall on a space, we cut down the search size.
2006	* In this way, we won't return spaces that are on another side of a wall.	2012	* In this way, we won't return spaces that are on another side of a wall.
2007	* This mostly work, but it cuts down the search size in all directions -	2013	* This mostly work, but it cuts down the search size in all directions -
2008	* if the space being examined only has a wall to the north and empty	2014	* if the space being examined only has a wall to the north and empty
2009	* spaces in all the other directions, this will reduce the search space	2015	* spaces in all the other directions, this will reduce the search space
2010	* to only the spaces immediately surrounding the target area, and	2016	* to only the spaces immediately surrounding the target area, and
2011	* won't look 2 spaces south of the target space.	2017	* won't look 2 spaces south of the target space.
2012	*/	2018	*/
2013	else if ((flag & AB_NO_PASS) && maxfree[i]<stop)	2019	else if ((flag & P_NO_PASS) && maxfree[i] < stop)
2014	stop=maxfree[i];	2020	stop = maxfree[i];
2015	}	2021	}
2016	if(!index) return -1;	2022
		2023	if (!index)
		2024	return -1;
		2025
2017	return altern[RANDOM()%index];	2026	return altern[RANDOM () % index];
2018	}	2027	}
2019		2028
2020	/*	2029	/*
2021	* find_first_free_spot(archetype, mapstruct, x, y) works like	2030	* find_first_free_spot(archetype, maptile, x, y) works like
2022	* find_free_spot(), but it will search max number of squares.	2031	* find_free_spot(), but it will search max number of squares.
2023	* But it will return the first available spot, not a random choice.	2032	* But it will return the first available spot, not a random choice.
2024	* Changed 0.93.2: Have it return -1 if there is no free spot available.	2033	* Changed 0.93.2: Have it return -1 if there is no free spot available.
2025	*/	2034	*/
2026		2035	int
2027	int find_first_free_spot(const object *ob, mapstruct *m,int x,int y) {	2036	find_first_free_spot (const object *ob, maptile *m, int x, int y)
2028	int i;	2037	{
2029	for(i=0;i<SIZEOFFREE;i++) {	2038	for (int i = 0; i < SIZEOFFREE; i++)
2030	if(!ob_blocked(ob,m,x+freearr_x[i],y+freearr_y[i]))	2039	if (!ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]))
2031	return i;	2040	return i;
2032	}	2041
2033	return -1;	2042	return -1;
2034	}	2043	}
2035		2044
2036	/*	2045	/*
2037	* The function permute(arr, begin, end) randomly reorders the array	2046	* The function permute(arr, begin, end) randomly reorders the array
2038	* arr[begin..end-1].	2047	* arr[begin..end-1].
		2048	* now uses a fisher-yates shuffle, old permute was broken
2039	*/	2049	*/
		2050	static void
2040	static void permute(int *arr, int begin, int end)	2051	permute (int *arr, int begin, int end)
2041	{	2052	{
2042	int i, j, tmp, len;	2053	arr += begin;
		2054	end -= begin;
2043		2055
2044	len = end-begin;	2056	while (--end)
2045	for(i = begin; i < end; i++)	2057	swap (arr [end], arr [RANDOM () % (end + 1)]);
2046	{
2047	j = begin+RANDOM()%len;
2048
2049	tmp = arr[i];
2050	arr[i] = arr[j];
2051	arr[j] = tmp;
2052	}
2053	}	2058	}
2054		2059
2055	/* new function to make monster searching more efficient, and effective!	2060	/* new function to make monster searching more efficient, and effective!
2056	* This basically returns a randomized array (in the passed pointer) of	2061	* This basically returns a randomized array (in the passed pointer) of
2057	* the spaces to find monsters. In this way, it won't always look for	2062	* the spaces to find monsters. In this way, it won't always look for
2058	* monsters to the north first. However, the size of the array passed	2063	* monsters to the north first. However, the size of the array passed
2059	* covers all the spaces, so within that size, all the spaces within	2064	* covers all the spaces, so within that size, all the spaces within
2060	* the 3x3 area will be searched, just not in a predictable order.	2065	* the 3x3 area will be searched, just not in a predictable order.
2061	*/	2066	*/
		2067	void
2062	void get_search_arr(int *search_arr)	2068	get_search_arr (int *search_arr)
2063	{	2069	{
2064	int i;	2070	int i;
2065		2071
2066	for(i = 0; i < SIZEOFFREE; i++)	2072	for (i = 0; i < SIZEOFFREE; i++)
2067	{
2068	search_arr[i] = i;	2073	search_arr[i] = i;
2069	}
2070		2074
2071	permute(search_arr, 1, SIZEOFFREE1+1);	2075	permute (search_arr, 1, SIZEOFFREE1 + 1);
2072	permute(search_arr, SIZEOFFREE1+1, SIZEOFFREE2+1);	2076	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);
2073	permute(search_arr, SIZEOFFREE2+1, SIZEOFFREE);	2077	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);
2074	}	2078	}
2075		2079
2076	/*	2080	/*
2077	* find_dir(map, x, y, exclude) will search some close squares in the	2081	* find_dir(map, x, y, exclude) will search some close squares in the
2078	* given map at the given coordinates for live objects.	2082	* given map at the given coordinates for live objects.
…		…
2083	* Perhaps incorrectly, but I'm making the assumption that exclude	2087	* Perhaps incorrectly, but I'm making the assumption that exclude
2084	* is actually want is going to try and move there. We need this info	2088	* is actually want is going to try and move there. We need this info
2085	* because we have to know what movement the thing looking to move	2089	* because we have to know what movement the thing looking to move
2086	* there is capable of.	2090	* there is capable of.
2087	*/	2091	*/
2088		2092	int
2089	int find_dir(mapstruct *m, int x, int y, object *exclude) {	2093	find_dir (maptile *m, int x, int y, object *exclude)
		2094	{
2090	int i,max=SIZEOFFREE, mflags;	2095	int i, max = SIZEOFFREE, mflags;
		2096
2091	sint16 nx, ny;	2097	sint16 nx, ny;
2092	object *tmp;	2098	object *tmp;
2093	mapstruct *mp;	2099	maptile *mp;
		2100
2094	MoveType blocked, move_type;	2101	MoveType blocked, move_type;
2095		2102
2096	if (exclude && exclude->head) {	2103	if (exclude && exclude->head)
		2104	{
2097	exclude = exclude->head;	2105	exclude = exclude->head;
2098	move_type = exclude->move_type;	2106	move_type = exclude->move_type;
2099	} else {	2107	}
		2108	else
		2109	{
2100	/* If we don't have anything, presume it can use all movement types. */	2110	/* If we don't have anything, presume it can use all movement types. */
2101	move_type=MOVE_ALL;	2111	move_type = MOVE_ALL;
		2112	}
		2113
		2114	for (i = 1; i < max; i++)
2102	}	2115	{
2103
2104	for(i=1;i<max;i++) {
2105	mp = m;	2116	mp = m;
2106	nx = x + freearr_x[i];	2117	nx = x + freearr_x[i];
2107	ny = y + freearr_y[i];	2118	ny = y + freearr_y[i];
2108		2119
2109	mflags = get_map_flags(m, &mp, nx, ny, &nx, &ny);	2120	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);
		2121
2110	if (mflags & P_OUT_OF_MAP) {	2122	if (mflags & P_OUT_OF_MAP)
		2123	max = maxfree[i];
		2124	else
		2125	{
		2126	mapspace &ms = mp->at (nx, ny);
		2127
		2128	blocked = ms.move_block;
		2129
		2130	if ((move_type & blocked) == move_type)
2111	max = maxfree[i];	2131	max = maxfree[i];
2112	} else {
2113	blocked = GET_MAP_MOVE_BLOCK(mp, nx, ny);
2114
2115	if ((move_type & blocked) == move_type) {
2116	max=maxfree[i];
2117	} else if (mflags & P_IS_ALIVE) {	2132	else if (mflags & P_IS_ALIVE)
2118	for (tmp=GET_MAP_OB(mp,nx,ny); tmp!= NULL; tmp=tmp->above) {	2133	{
		2134	for (tmp = ms.bot; tmp; tmp = tmp->above)
2119	if ((QUERY_FLAG(tmp,FLAG_MONSTER) || tmp->type==PLAYER) &&	2135	if ((tmp->flag [FLAG_MONSTER] || tmp->type == PLAYER)
2120	(tmp != exclude ||(tmp->head && tmp->head != exclude))) {	2136	&& (tmp != exclude || (tmp->head && tmp->head != exclude)))
2121	break;	2137	break;
2122	}	2138
2123	}
2124	if(tmp) {	2139	if (tmp)
2125	return freedir[i];	2140	return freedir[i];
2126	}
2127	}	2141	}
2128	}	2142	}
2129	}	2143	}
		2144
2130	return 0;	2145	return 0;
2131	}	2146	}
2132		2147
2133	/*	2148	/*
2134	* distance(object 1, object 2) will return the square of the	2149	* distance(object 1, object 2) will return the square of the
2135	* distance between the two given objects.	2150	* distance between the two given objects.
2136	*/	2151	*/
2137		2152	int
2138	int distance(const object *ob1, const object *ob2) {	2153	distance (const object *ob1, const object *ob2)
2139	int i;	2154	{
2140	i= (ob1->x - ob2->x)*(ob1->x - ob2->x)+	2155	return (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);
2141	(ob1->y - ob2->y)*(ob1->y - ob2->y);
2142	return i;
2143	}	2156	}
2144		2157
2145	/*	2158	/*
2146	* find_dir_2(delta-x,delta-y) will return a direction in which	2159	* find_dir_2(delta-x,delta-y) will return a direction in which
2147	* an object which has subtracted the x and y coordinates of another	2160	* an object which has subtracted the x and y coordinates of another
2148	* object, needs to travel toward it.	2161	* object, needs to travel toward it.
2149	*/	2162	*/
2150		2163	int
2151	int find_dir_2(int x, int y) {	2164	find_dir_2 (int x, int y)
		2165	{
2152	int q;	2166	int q;
2153		2167
2154	if(y)	2168	if (y)
2155	q=x*100/y;	2169	q = x * 100 / y;
2156	else if (x)	2170	else if (x)
2157	q= -300*x;	2171	q = -300 * x;
2158	else	2172	else
2159	return 0;	2173	return 0;
2160		2174
2161	if(y>0) {	2175	if (y > 0)
		2176	{
2162	if(q < -242)	2177	if (q < -242)
2163	return 3 ;	2178	return 3;
2164	if (q < -41)	2179	if (q < -41)
2165	return 2 ;	2180	return 2;
2166	if (q < 41)	2181	if (q < 41)
2167	return 1 ;	2182	return 1;
2168	if (q < 242)	2183	if (q < 242)
2169	return 8 ;	2184	return 8;
2170	return 7 ;	2185	return 7;
2171	}	2186	}
2172		2187
2173	if (q < -242)	2188	if (q < -242)
2174	return 7 ;	2189	return 7;
2175	if (q < -41)	2190	if (q < -41)
2176	return 6 ;	2191	return 6;
2177	if (q < 41)	2192	if (q < 41)
2178	return 5 ;	2193	return 5;
2179	if (q < 242)	2194	if (q < 242)
2180	return 4 ;	2195	return 4;
2181		2196
2182	return 3 ;	2197	return 3;
2183	}	2198	}
2184		2199
2185	/*	2200	/*
2186	* absdir(int): Returns a number between 1 and 8, which represent	2201	* absdir(int): Returns a number between 1 and 8, which represent
2187	* the "absolute" direction of a number (it actually takes care of	2202	* the "absolute" direction of a number (it actually takes care of
2188	* "overflow" in previous calculations of a direction).	2203	* "overflow" in previous calculations of a direction).
2189	*/	2204	*/
2190		2205
		2206	int
2191	int absdir(int d) {	2207	absdir (int d)
2192	while(d<1) d+=8;	2208	{
2193	while(d>8) d-=8;	2209	while (d < 1)
		2210	d += 8;
		2211
		2212	while (d > 8)
		2213	d -= 8;
		2214
2194	return d;	2215	return d;
2195	}	2216	}
2196		2217
2197	/*	2218	/*
2198	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is	2219	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is
2199	* between two directions (which are expected to be absolute (see absdir())	2220	* between two directions (which are expected to be absolute (see absdir())
2200	*/	2221	*/
2201		2222
		2223	int
2202	int dirdiff(int dir1, int dir2) {	2224	dirdiff (int dir1, int dir2)
		2225	{
2203	int d;	2226	int d;
		2227
2204	d = abs(dir1 - dir2);	2228	d = abs (dir1 - dir2);
2205	if(d>4)	2229	if (d > 4)
2206	d = 8 - d;	2230	d = 8 - d;
		2231
2207	return d;	2232	return d;
2208	}	2233	}
2209		2234
2210	/* peterm:	2235	/* peterm:
2211	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.	2236	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.
…		…
2214	* This basically means that if direction is 15, then it could either go	2239	* This basically means that if direction is 15, then it could either go
2215	* direction 4, 14, or 16 to get back to where we are.	2240	* direction 4, 14, or 16 to get back to where we are.
2216	* Moved from spell_util.c to object.c with the other related direction	2241	* Moved from spell_util.c to object.c with the other related direction
2217	* functions.	2242	* functions.
2218	*/	2243	*/
2219
2220	int reduction_dir[SIZEOFFREE][3] = {	2244	int reduction_dir[SIZEOFFREE][3] = {
2221	{0,0,0}, /* 0 */	2245	{0, 0, 0}, /* 0 */
2222	{0,0,0}, /* 1 */	2246	{0, 0, 0}, /* 1 */
2223	{0,0,0}, /* 2 */	2247	{0, 0, 0}, /* 2 */
2224	{0,0,0}, /* 3 */	2248	{0, 0, 0}, /* 3 */
2225	{0,0,0}, /* 4 */	2249	{0, 0, 0}, /* 4 */
2226	{0,0,0}, /* 5 */	2250	{0, 0, 0}, /* 5 */
2227	{0,0,0}, /* 6 */	2251	{0, 0, 0}, /* 6 */
2228	{0,0,0}, /* 7 */	2252	{0, 0, 0}, /* 7 */
2229	{0,0,0}, /* 8 */	2253	{0, 0, 0}, /* 8 */
2230	{8,1,2}, /* 9 */	2254	{8, 1, 2}, /* 9 */
2231	{1,2,-1}, /* 10 */	2255	{1, 2, -1}, /* 10 */
2232	{2,10,12}, /* 11 */	2256	{2, 10, 12}, /* 11 */
2233	{2,3,-1}, /* 12 */	2257	{2, 3, -1}, /* 12 */
2234	{2,3,4}, /* 13 */	2258	{2, 3, 4}, /* 13 */
2235	{3,4,-1}, /* 14 */	2259	{3, 4, -1}, /* 14 */
2236	{4,14,16}, /* 15 */	2260	{4, 14, 16}, /* 15 */
2237	{5,4,-1}, /* 16 */	2261	{5, 4, -1}, /* 16 */
2238	{4,5,6}, /* 17 */	2262	{4, 5, 6}, /* 17 */
2239	{6,5,-1}, /* 18 */	2263	{6, 5, -1}, /* 18 */
2240	{6,20,18}, /* 19 */	2264	{6, 20, 18}, /* 19 */
2241	{7,6,-1}, /* 20 */	2265	{7, 6, -1}, /* 20 */
2242	{6,7,8}, /* 21 */	2266	{6, 7, 8}, /* 21 */
2243	{7,8,-1}, /* 22 */	2267	{7, 8, -1}, /* 22 */
2244	{8,22,24}, /* 23 */	2268	{8, 22, 24}, /* 23 */
2245	{8,1,-1}, /* 24 */	2269	{8, 1, -1}, /* 24 */
2246	{24,9,10}, /* 25 */	2270	{24, 9, 10}, /* 25 */
2247	{9,10,-1}, /* 26 */	2271	{9, 10, -1}, /* 26 */
2248	{10,11,-1}, /* 27 */	2272	{10, 11, -1}, /* 27 */
2249	{27,11,29}, /* 28 */	2273	{27, 11, 29}, /* 28 */
2250	{11,12,-1}, /* 29 */	2274	{11, 12, -1}, /* 29 */
2251	{12,13,-1}, /* 30 */	2275	{12, 13, -1}, /* 30 */
2252	{12,13,14}, /* 31 */	2276	{12, 13, 14}, /* 31 */
2253	{13,14,-1}, /* 32 */	2277	{13, 14, -1}, /* 32 */
2254	{14,15,-1}, /* 33 */	2278	{14, 15, -1}, /* 33 */
2255	{33,15,35}, /* 34 */	2279	{33, 15, 35}, /* 34 */
2256	{16,15,-1}, /* 35 */	2280	{16, 15, -1}, /* 35 */
2257	{17,16,-1}, /* 36 */	2281	{17, 16, -1}, /* 36 */
2258	{18,17,16}, /* 37 */	2282	{18, 17, 16}, /* 37 */
2259	{18,17,-1}, /* 38 */	2283	{18, 17, -1}, /* 38 */
2260	{18,19,-1}, /* 39 */	2284	{18, 19, -1}, /* 39 */
2261	{41,19,39}, /* 40 */	2285	{41, 19, 39}, /* 40 */
2262	{19,20,-1}, /* 41 */	2286	{19, 20, -1}, /* 41 */
2263	{20,21,-1}, /* 42 */	2287	{20, 21, -1}, /* 42 */
2264	{20,21,22}, /* 43 */	2288	{20, 21, 22}, /* 43 */
2265	{21,22,-1}, /* 44 */	2289	{21, 22, -1}, /* 44 */
2266	{23,22,-1}, /* 45 */	2290	{23, 22, -1}, /* 45 */
2267	{45,47,23}, /* 46 */	2291	{45, 47, 23}, /* 46 */
2268	{23,24,-1}, /* 47 */	2292	{23, 24, -1}, /* 47 */
2269	{24,9,-1}}; /* 48 */	2293	{24, 9, -1}
		2294	}; /* 48 */
2270		2295
2271	/* Recursive routine to step back and see if we can	2296	/* Recursive routine to step back and see if we can
2272	* find a path to that monster that we found. If not,	2297	* find a path to that monster that we found. If not,
2273	* we don't bother going toward it. Returns 1 if we	2298	* we don't bother going toward it. Returns 1 if we
2274	* can see a direct way to get it	2299	* can see a direct way to get it
2275	* Modified to be map tile aware -.MSW	2300	* Modified to be map tile aware -.MSW
2276	*/	2301	*/
2277		2302	int
2278
2279	int can_see_monsterP(mapstruct *m, int x, int y,int dir) {	2303	can_see_monsterP (maptile *m, int x, int y, int dir)
		2304	{
2280	sint16 dx, dy;	2305	sint16 dx, dy;
2281	int mflags;	2306	int mflags;
2282		2307
		2308	if (dir < 0)
2283	if(dir<0) return 0; /* exit condition: invalid direction */	2309	return 0; /* exit condition: invalid direction */
2284		2310
2285	dx = x + freearr_x[dir];	2311	dx = x + freearr_x[dir];
2286	dy = y + freearr_y[dir];	2312	dy = y + freearr_y[dir];
2287		2313
2288	mflags = get_map_flags(m, &m, dx, dy, &dx, &dy);	2314	mflags = get_map_flags (m, &m, dx, dy, &dx, &dy);
2289		2315
2290	/* This functional arguably was incorrect before - it was	2316	/* This functional arguably was incorrect before - it was
2291	* checking for P_WALL - that was basically seeing if	2317	* checking for P_WALL - that was basically seeing if
2292	* we could move to the monster - this is being more	2318	* we could move to the monster - this is being more
2293	* literal on if we can see it. To know if we can actually	2319	* literal on if we can see it. To know if we can actually
2294	* move to the monster, we'd need the monster passed in or	2320	* move to the monster, we'd need the monster passed in or
2295	* at least its move type.	2321	* at least its move type.
2296	*/	2322	*/
2297	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW)) return 0;	2323	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW))
		2324	return 0;
2298		2325
2299	/* yes, can see. */	2326	/* yes, can see. */
2300	if(dir < 9) return 1;	2327	if (dir < 9)
		2328	return 1;
		2329
2301	return can_see_monsterP(m, x, y, reduction_dir[dir][0]) |	2330	return can_see_monsterP (m, x, y, reduction_dir[dir][0])
2302	can_see_monsterP(m,x,y, reduction_dir[dir][1]) |	2331	| can_see_monsterP (m, x, y, reduction_dir[dir][1])
2303	can_see_monsterP(m,x,y, reduction_dir[dir][2]);	2332	| can_see_monsterP (m, x, y, reduction_dir[dir][2]);
2304	}	2333	}
2305		2334
2306
2307
2308	/*	2335	/*
2309	* can_pick(picker, item): finds out if an object is possible to be	2336	* can_pick(picker, item): finds out if an object is possible to be
2310	* picked up by the picker. Returnes 1 if it can be	2337	* picked up by the picker. Returnes 1 if it can be
2311	* picked up, otherwise 0.	2338	* picked up, otherwise 0.
2312	*	2339	*
…		…
2314	* core dumps if they do.	2341	* core dumps if they do.
2315	*	2342	*
2316	* Add a check so we can't pick up invisible objects (0.93.8)	2343	* Add a check so we can't pick up invisible objects (0.93.8)
2317	*/	2344	*/
2318		2345
		2346	int
2319	int can_pick(const object *who, const object *item) {	2347	can_pick (const object *who, const object *item)
		2348	{
2320	return /*QUERY_FLAG(who,FLAG_WIZ)||*/	2349	return /*QUERY_FLAG(who,FLAG_WIZ)|| */
2321	(item->weight>0&&!QUERY_FLAG(item,FLAG_NO_PICK)&&	2350	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&
2322	!QUERY_FLAG(item,FLAG_ALIVE)&&!item->invisible &&	2351	!QUERY_FLAG (item, FLAG_ALIVE) && !item->invisible && (who->type == PLAYER || item->weight < who->weight / 3));
2323	(who->type==PLAYER||item->weight<who->weight/3));
2324	}	2352	}
2325
2326		2353
2327	/*	2354	/*
2328	* create clone from object to another	2355	* create clone from object to another
2329	*/	2356	*/
		2357	object *
2330	object *object_create_clone (object *asrc) {	2358	object_create_clone (object *asrc)
		2359	{
2331	object *dst = NULL,*tmp,*src,*part,*prev, *item;	2360	object *dst = 0, *tmp, *src, *part, *prev, *item;
2332		2361
2333	if(!asrc) return NULL;	2362	if (!asrc)
		2363	return 0;
		2364
2334	src = asrc;	2365	src = asrc;
2335	if(src->head)	2366	if (src->head)
2336	src = src->head;	2367	src = src->head;
2337		2368
2338	prev = NULL;	2369	prev = 0;
2339	for(part = src; part; part = part->more) {	2370	for (part = src; part; part = part->more)
2340	tmp = get_object();	2371	{
2341	copy_object(part,tmp);	2372	tmp = part->clone ();
2342	tmp->x -= src->x;	2373	tmp->x -= src->x;
2343	tmp->y -= src->y;	2374	tmp->y -= src->y;
		2375
2344	if(!part->head) {	2376	if (!part->head)
		2377	{
2345	dst = tmp;	2378	dst = tmp;
2346	tmp->head = NULL;	2379	tmp->head = 0;
		2380	}
2347	} else {	2381	else
2348	tmp->head = dst;	2382	tmp->head = dst;
2349	}	2383
2350	tmp->more = NULL;	2384	tmp->more = 0;
		2385
2351	if(prev)	2386	if (prev)
2352	prev->more = tmp;	2387	prev->more = tmp;
		2388
2353	prev = tmp;	2389	prev = tmp;
2354	}	2390	}
2355	/*** copy inventory ***/	2391
2356	for(item = src->inv; item; item = item->below) {	2392	for (item = src->inv; item; item = item->below)
2357	(void) insert_ob_in_ob(object_create_clone(item),dst);	2393	insert_ob_in_ob (object_create_clone (item), dst);
2358	}
2359		2394
2360	return dst;	2395	return dst;
2361	}
2362
2363	/* return true if the object was destroyed, 0 otherwise */
2364	int was_destroyed (const object *op, tag_t old_tag)
2365	{
2366	/* checking for FLAG_FREED isn't necessary, but makes this function more
2367	* robust */
2368	return op->count != old_tag || QUERY_FLAG (op, FLAG_FREED);
2369	}	2396	}
2370		2397
2371	/* GROS - Creates an object using a string representing its content. */	2398	/* GROS - Creates an object using a string representing its content. */
2372	/* Basically, we save the content of the string to a temp file, then call */	2399	/* Basically, we save the content of the string to a temp file, then call */
2373	/* load_object on it. I admit it is a highly inefficient way to make things, */	2400	/* load_object on it. I admit it is a highly inefficient way to make things, */
2374	/* but it was simple to make and allows reusing the load_object function. */	2401	/* but it was simple to make and allows reusing the load_object function. */
2375	/* Remember not to use load_object_str in a time-critical situation. */	2402	/* Remember not to use load_object_str in a time-critical situation. */
2376	/* Also remember that multiparts objects are not supported for now. */	2403	/* Also remember that multiparts objects are not supported for now. */
2377		2404	object *
2378	object* load_object_str(const char *obstr)	2405	load_object_str (const char *obstr)
2379	{	2406	{
2380	object *op;	2407	object *op;
2381	char filename[MAX_BUF];	2408	char filename[MAX_BUF];
		2409
2382	sprintf(filename,"%s/cfloadobstr2044",settings.tmpdir);	2410	sprintf (filename, "%s/cfloadobstr2044", settings.tmpdir);
2383		2411
2384	FILE *tempfile=fopen(filename,"w");	2412	FILE *tempfile = fopen (filename, "w");
		2413
2385	if (tempfile == NULL)	2414	if (tempfile == NULL)
2386	{	2415	{
2387	LOG(llevError,"Error - Unable to access load object temp file\n");	2416	LOG (llevError, "Error - Unable to access load object temp file\n");
2388	return NULL;	2417	return NULL;
2389	};	2418	}
		2419
2390	fprintf(tempfile,obstr);	2420	fprintf (tempfile, obstr);
2391	fclose(tempfile);	2421	fclose (tempfile);
2392		2422
2393	op=get_object();	2423	op = object::create ();
2394		2424
2395	object_thawer thawer (filename);	2425	object_thawer thawer (filename);
2396		2426
2397	if (thawer)	2427	if (thawer)
2398	load_object(thawer,op,0);	2428	load_object (thawer, op, 0);
2399		2429
2400	LOG(llevDebug," load str completed, object=%s\n", &op->name);	2430	LOG (llevDebug, " load str completed, object=%s\n", &op->name);
2401	CLEAR_FLAG(op,FLAG_REMOVED);	2431	CLEAR_FLAG (op, FLAG_REMOVED);
2402		2432
2403	return op;	2433	return op;
2404	}	2434	}
2405		2435
2406	/* This returns the first object in who's inventory that	2436	/* This returns the first object in who's inventory that
2407	* has the same type and subtype match.	2437	* has the same type and subtype match.
2408	* returns NULL if no match.	2438	* returns NULL if no match.
2409	*/	2439	*/
		2440	object *
2410	object *find_obj_by_type_subtype(const object *who, int type, int subtype)	2441	find_obj_by_type_subtype (const object *who, int type, int subtype)
2411	{	2442	{
2412	object *tmp;
2413
2414	for (tmp=who->inv; tmp; tmp=tmp->below)	2443	for (object *tmp = who->inv; tmp; tmp = tmp->below)
2415	if (tmp->type == type && tmp->subtype == subtype) return tmp;	2444	if (tmp->type == type && tmp->subtype == subtype)
		2445	return tmp;
2416		2446
2417	return NULL;	2447	return 0;
2418	}	2448	}
2419		2449
2420	/* If ob has a field named key, return the link from the list,	2450	/* If ob has a field named key, return the link from the list,
2421	* otherwise return NULL.	2451	* otherwise return NULL.
2422	*	2452	*
2423	* key must be a passed in shared string - otherwise, this won't	2453	* key must be a passed in shared string - otherwise, this won't
2424	* do the desired thing.	2454	* do the desired thing.
2425	*/	2455	*/
		2456	key_value *
2426	key_value * get_ob_key_link(const object * ob, const char * key) {	2457	get_ob_key_link (const object *ob, const char *key)
2427	key_value * link;	2458	{
2428
2429	for (link = ob->key_values; link != NULL; link = link->next) {	2459	for (key_value *link = ob->key_values; link; link = link->next)
2430	if (link->key == key) {	2460	if (link->key == key)
2431	return link;	2461	return link;
2432	}	2462
2433	}	2463	return 0;
2434		2464	}
2435	return NULL;
2436	}
2437		2465
2438	/*	2466	/*
2439	* Returns the value of op has an extra_field for key, or NULL.	2467	* Returns the value of op has an extra_field for key, or NULL.
2440	*	2468	*
2441	* The argument doesn't need to be a shared string.	2469	* The argument doesn't need to be a shared string.
2442	*	2470	*
2443	* The returned string is shared.	2471	* The returned string is shared.
2444	*/	2472	*/
		2473	const char *
2445	const char * get_ob_key_value(const object * op, const char * const key) {	2474	get_ob_key_value (const object *op, const char *const key)
		2475	{
2446	key_value * link;	2476	key_value *link;
2447	const char * canonical_key;	2477	shstr_cmp canonical_key (key);
		2478
		2479	if (!canonical_key)
2448		2480	{
2449	canonical_key = shstr::find (key);
2450
2451	if (canonical_key == NULL) {
2452	/* 1. There being a field named key on any object	2481	/* 1. There being a field named key on any object
2453	* implies there'd be a shared string to find.	2482	* implies there'd be a shared string to find.
2454	* 2. Since there isn't, no object has this field.	2483	* 2. Since there isn't, no object has this field.
2455	* 3. Therefore, *this* object doesn't have this field.	2484	* 3. Therefore, *this* object doesn't have this field.
2456	*/	2485	*/
2457	return NULL;	2486	return 0;
2458	}	2487	}
2459		2488
2460	/* This is copied from get_ob_key_link() above -	2489	/* This is copied from get_ob_key_link() above -
2461	* only 4 lines, and saves the function call overhead.	2490	* only 4 lines, and saves the function call overhead.
2462	*/	2491	*/
2463	for (link = op->key_values; link != NULL; link = link->next) {	2492	for (link = op->key_values; link; link = link->next)
2464	if (link->key == canonical_key) {	2493	if (link->key == canonical_key)
2465	return link->value;	2494	return link->value;
2466	}	2495
2467	}	2496	return 0;
2468	return NULL;
2469	}	2497	}
2470		2498
2471		2499
2472	/*	2500	/*
2473	* Updates the canonical_key in op to value.	2501	* Updates the canonical_key in op to value.
…		…
2477	* Unless add_key is TRUE, it won't add fields, only change the value of existing	2505	* Unless add_key is TRUE, it won't add fields, only change the value of existing
2478	* keys.	2506	* keys.
2479	*	2507	*
2480	* Returns TRUE on success.	2508	* Returns TRUE on success.
2481	*/	2509	*/
		2510	int
2482	int set_ob_key_value_s(object * op, const shstr &canonical_key, const char * value, int add_key) {	2511	set_ob_key_value_s (object *op, const shstr & canonical_key, const char *value, int add_key)
		2512	{
2483	key_value * field = NULL, *last=NULL;	2513	key_value *field = NULL, *last = NULL;
2484		2514
2485	for (field=op->key_values; field != NULL; field=field->next) {	2515	for (field = op->key_values; field != NULL; field = field->next)
		2516	{
2486	if (field->key != canonical_key) {	2517	if (field->key != canonical_key)
		2518	{
2487	last = field;	2519	last = field;
2488	continue;	2520	continue;
2489	}	2521	}
2490		2522
2491	if (value)	2523	if (value)
2492	field->value = value;	2524	field->value = value;
2493	else {	2525	else
		2526	{
2494	/* Basically, if the archetype has this key set,	2527	/* Basically, if the archetype has this key set,
2495	* we need to store the null value so when we save	2528	* we need to store the null value so when we save
2496	* it, we save the empty value so that when we load,	2529	* it, we save the empty value so that when we load,
2497	* we get this value back again.	2530	* we get this value back again.
2498	*/	2531	*/
2499	if (get_ob_key_link (&op->arch->clone, canonical_key))	2532	if (get_ob_key_link (&op->arch->clone, canonical_key))
2500	field->value = 0;	2533	field->value = 0;
		2534	else
		2535	{
		2536	if (last)
		2537	last->next = field->next;
2501	else	2538	else
2502	{
2503	if (last) last->next = field->next;
2504	else op->key_values = field->next;	2539	op->key_values = field->next;
2505		2540
2506	delete field;	2541	delete field;
2507	}	2542	}
2508	}	2543	}
2509	return TRUE;	2544	return TRUE;
2510	}	2545	}
2511	/* IF we get here, key doesn't exist */	2546	/* IF we get here, key doesn't exist */
2512		2547
2513	/* No field, we'll have to add it. */	2548	/* No field, we'll have to add it. */
2514		2549
2515	if (!add_key) {	2550	if (!add_key)
2516	return FALSE;	2551	return FALSE;
2517	}	2552
2518	/* There isn't any good reason to store a null	2553	/* There isn't any good reason to store a null
2519	* value in the key/value list. If the archetype has	2554	* value in the key/value list. If the archetype has
2520	* this key, then we should also have it, so shouldn't	2555	* this key, then we should also have it, so shouldn't
2521	* be here. If user wants to store empty strings,	2556	* be here. If user wants to store empty strings,
2522	* should pass in ""	2557	* should pass in ""
2523	*/	2558	*/
2524	if (value == NULL) return TRUE;	2559	if (value == NULL)
2525
2526	field = new key_value;
2527
2528	field->key = canonical_key;
2529	field->value = value;
2530	/* Usual prepend-addition. */
2531	field->next = op->key_values;
2532	op->key_values = field;
2533
2534	return TRUE;	2560	return TRUE;
		2561
		2562	field = new key_value;
		2563
		2564	field->key = canonical_key;
		2565	field->value = value;
		2566	/* Usual prepend-addition. */
		2567	field->next = op->key_values;
		2568	op->key_values = field;
		2569
		2570	return TRUE;
2535	}	2571	}
2536		2572
2537	/*	2573	/*
2538	* Updates the key in op to value.	2574	* Updates the key in op to value.
2539	*	2575	*
…		…
2541	* and not add new ones.	2577	* and not add new ones.
2542	* In general, should be little reason FALSE is ever passed in for add_key	2578	* In general, should be little reason FALSE is ever passed in for add_key
2543	*	2579	*
2544	* Returns TRUE on success.	2580	* Returns TRUE on success.
2545	*/	2581	*/
		2582	int
2546	int set_ob_key_value(object * op, const char *key, const char * value, int add_key)	2583	set_ob_key_value (object *op, const char *key, const char *value, int add_key)
2547	{	2584	{
2548	shstr key_ (key);	2585	shstr key_ (key);
		2586
2549	return set_ob_key_value_s (op, key_, value, add_key);	2587	return set_ob_key_value_s (op, key_, value, add_key);
2550	}	2588	}
		2589
		2590	object::depth_iterator::depth_iterator (object *container)
		2591	: iterator_base (container)
		2592	{
		2593	while (item->inv)
		2594	item = item->inv;
		2595	}
		2596
		2597	void
		2598	object::depth_iterator::next ()
		2599	{
		2600	if (item->below)
		2601	{
		2602	item = item->below;
		2603
		2604	while (item->inv)
		2605	item = item->inv;
		2606	}
		2607	else
		2608	item = item->env;
		2609	}
		2610
		2611
		2612	const char *
		2613	object::flag_desc (char *desc, int len) const
		2614	{
		2615	char *p = desc;
		2616	bool first = true;
		2617
		2618	for (int i = 0; i < NUM_FLAGS; i++)
		2619	{
		2620	if (len <= 10) // magic constant!
		2621	{
		2622	snprintf (p, len, ",...");
		2623	break;
		2624	}
		2625
		2626	if (flag[i])
		2627	{
		2628	int cnt = snprintf (p, len, "%s%d", first ? "" : ",", i);
		2629	len -= cnt;
		2630	p += cnt;
		2631	first = false;
		2632	}
		2633	}
		2634
		2635	return desc;
		2636	}
		2637
		2638	// return a suitable string describing an objetc in enough detail to find it
		2639	const char *
		2640	object::debug_desc (char *info) const
		2641	{
		2642	char flagdesc[512];
		2643	char info2[256 * 4];
		2644	char *p = info;
		2645
		2646	p += snprintf (p, 512, "{cnt:%d,uuid:<1,%" PRIx64 ">,name:\"%s%s%s\",flags:[%s],type:%d}",
		2647	count, uuid.seq,
		2648	&name,
		2649	title ? "\",title:" : "",
		2650	title ? (const char *)title : "",
		2651	flag_desc (flagdesc, 512), type);
		2652
		2653	if (env)
		2654	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));
		2655
		2656	if (map)
		2657	p += snprintf (p, 256, "(on %s@%d+%d)", &map->path, x, y);
		2658
		2659	return info;
		2660	}
		2661
		2662	const char *
		2663	object::debug_desc () const
		2664	{
		2665	static char info[256 * 3];
		2666	return debug_desc (info);
		2667	}
		2668

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