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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 1.105 by pippijn, Wed Jan 3 00:21:35 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->below)
		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->below)
		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	freed_map->in_memory = MAP_IN_MEMORY;
		876	}
		877
		878	map = freed_map;
		879	x = 1;
		880	y = 1;
		881	}
		882
		883	head = 0;
		884
		885	if (more)
		886	{
		887	more->destroy ();
		888	more = 0;
		889	}
		890
		891	// clear those pointers that likely might have circular references to us
		892	owner = 0;
		893	enemy = 0;
		894	attacked_by = 0;
		895
		896	// only relevant for players(?), but make sure of it anyways
		897	contr = 0;
		898	}
		899
		900	void
		901	object::destroy (bool destroy_inventory)
		902	{
		903	if (destroyed ())
		904	return;
		905
		906	if (destroy_inventory)
		907	destroy_inv (false);
		908
		909	attachable::destroy ();
982	}	910	}
983		911
984	/*	912	/*
985	* sub_weight() recursively (outwards) subtracts a number from the	913	* sub_weight() recursively (outwards) subtracts a number from the
986	* weight of an object (and what is carried by it's environment(s)).	914	* weight of an object (and what is carried by it's environment(s)).
987	*/	915	*/
988		916	void
989	void sub_weight (object *op, signed long weight) {	917	sub_weight (object *op, signed long weight)
		918	{
990	while (op != NULL) {	919	while (op != NULL)
		920	{
991	if (op->type == CONTAINER) {	921	if (op->type == CONTAINER)
992	weight=(signed long)(weight*(100-op->stats.Str)/100);	922	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
993	}	923
994	op->carrying-=weight;	924	op->carrying -= weight;
995	op = op->env;	925	op = op->env;
996	}	926	}
997	}	927	}
998		928
999	/* remove_ob(op):	929	/* op->remove ():
1000	* This function removes the object op from the linked list of objects	930	* 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	931	* which it is currently tied to. When this function is done, the
1002	* object will have no environment. If the object previously had an	932	* object will have no environment. If the object previously had an
1003	* environment, the x and y coordinates will be updated to	933	* environment, the x and y coordinates will be updated to
1004	* the previous environment.	934	* the previous environment.
1005	* Beware: This function is called from the editor as well!	935	* Beware: This function is called from the editor as well!
1006	*/	936	*/
1007		937	void
1008	void remove_ob(object *op) {	938	object::remove ()
		939	{
1009	object *tmp,*last=NULL;	940	object *tmp, *last = 0;
1010	object *otmp;	941	object *otmp;
1011	tag_t tag;
1012	int check_walk_off;
1013	mapstruct *m;
1014	sint16 x,y;
1015
1016		942
1017	if(QUERY_FLAG(op,FLAG_REMOVED)) {	943	if (QUERY_FLAG (this, FLAG_REMOVED))
1018	dump_object(op);	944	return;
1019	LOG(llevError,"Trying to remove removed object.\n%s\n",errmsg);
1020		945
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);	946	SET_FLAG (this, FLAG_REMOVED);
		947	INVOKE_OBJECT (REMOVE, this);
1037		948
		949	if (more)
		950	more->remove ();
		951
1038	/*	952	/*
1039	* In this case, the object to be removed is in someones	953	* In this case, the object to be removed is in someones
1040	* inventory.	954	* inventory.
1041	*/	955	*/
1042	if(op->env!=NULL) {	956	if (env)
		957	{
1043	if(op->nrof)	958	if (nrof)
1044	sub_weight(op->env, op->weight*op->nrof);	959	sub_weight (env, weight * nrof);
1045	else	960	else
1046	sub_weight(op->env, op->weight+op->carrying);	961	sub_weight (env, weight + carrying);
1047		962
1048	/* NO_FIX_PLAYER is set when a great many changes are being	963	/* NO_FIX_PLAYER is set when a great many changes are being
1049	* made to players inventory. If set, avoiding the call	964	* made to players inventory. If set, avoiding the call
1050	* to save cpu time.	965	* to save cpu time.
1051	*/	966	*/
1052	if ((otmp=is_player_inv(op->env))!=NULL && otmp->contr &&	967	if ((otmp = in_player ()) && otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1053	!QUERY_FLAG(otmp,FLAG_NO_FIX_PLAYER))	968	otmp->update_stats ();
1054	fix_player(otmp);
1055		969
1056	if(op->above!=NULL)	970	if (above)
1057	op->above->below=op->below;	971	above->below = below;
1058	else	972	else
1059	op->env->inv=op->below;	973	env->inv = below;
1060		974
1061	if(op->below!=NULL)	975	if (below)
1062	op->below->above=op->above;	976	below->above = above;
1063		977
1064	/* we set up values so that it could be inserted into	978	/* we set up values so that it could be inserted into
1065	* the map, but we don't actually do that - it is up	979	* the map, but we don't actually do that - it is up
1066	* to the caller to decide what we want to do.	980	* to the caller to decide what we want to do.
		981	*/
		982	x = env->x, y = env->y;
		983	map = env->map;
		984	above = 0, below = 0;
		985	env = 0;
		986	}
		987	else if (map)
		988	{
		989	if (type == PLAYER)
		990	{
		991	--map->players;
		992	map->touch ();
		993	}
		994
		995	map->dirty = true;
		996
		997	/* link the object above us */
		998	if (above)
		999	above->below = below;
		1000	else
		1001	map->at (x, y).top = below; /* we were top, set new top */
		1002
		1003	/* Relink the object below us, if there is one */
		1004	if (below)
		1005	below->above = above;
		1006	else
		1007	{
		1008	/* Nothing below, which means we need to relink map object for this space
		1009	* use translated coordinates in case some oddness with map tiling is
		1010	* evident
1067	*/	1011	*/
1068	op->x=op->env->x,op->y=op->env->y;	1012	if (GET_MAP_OB (map, x, y) != this)
1069	op->map=op->env->map;	1013	{
1070	op->above=NULL,op->below=NULL;	1014	char *dump = dump_object (this);
1071	op->env=NULL;	1015	LOG (llevError,
		1016	"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);
		1017	free (dump);
		1018	dump = dump_object (GET_MAP_OB (map, x, y));
		1019	LOG (llevError, "%s\n", dump);
		1020	free (dump);
		1021	}
		1022
		1023	map->at (x, y).bot = above; /* goes on above it. */
		1024	}
		1025
		1026	above = 0;
		1027	below = 0;
		1028
		1029	if (map->in_memory == MAP_SAVING)
1072	return;	1030	return;
1073	}
1074		1031
1075	/* If we get here, we are removing it from a map */	1032	int check_walk_off = !flag [FLAG_NO_APPLY];
1076	if (op->map == NULL) return;
1077		1033
1078	x = op->x;	1034	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	}	1035	{
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	1036	/* No point updating the players look faces if he is the object
1132	* being removed.	1037	* being removed.
1133	*/	1038	*/
1134		1039
1135	if(tmp->type==PLAYER && tmp!=op) {	1040	if (tmp->type == PLAYER && tmp != this)
		1041	{
1136	/* If a container that the player is currently using somehow gets	1042	/* If a container that the player is currently using somehow gets
1137	* removed (most likely destroyed), update the player view	1043	* removed (most likely destroyed), update the player view
1138	* appropriately.	1044	* appropriately.
1139	*/	1045	*/
1140	if (tmp->container==op) {	1046	if (tmp->container == this)
1141	CLEAR_FLAG(op, FLAG_APPLIED);	1047	{
		1048	flag [FLAG_APPLIED] = 0;
1142	tmp->container=NULL;	1049	tmp->container = 0;
		1050	}
		1051
		1052	if (tmp->contr->ns)
		1053	tmp->contr->ns->floorbox_update ();
1143	}	1054	}
1144	tmp->contr->socket.update_look=1;	1055
1145	}
1146	/* See if player moving off should effect something */	1056	/* See if object moving off should effect something */
1147	if (check_walk_off && ((op->move_type & tmp->move_off) &&	1057	if (check_walk_off
		1058	&& ((move_type & tmp->move_off)
1148	(op->move_type & ~tmp->move_off & ~tmp->move_block)==0)) {	1059	&& (move_type & ~tmp->move_off & ~tmp->move_block) == 0))
1149		1060	{
1150	move_apply(tmp, op, NULL);	1061	move_apply (tmp, this, 0);
		1062
1151	if (was_destroyed (op, tag)) {	1063	if (destroyed ())
1152	LOG (llevError, "BUG: remove_ob(): name %s, archname %s destroyed "	1064	LOG (llevError, "BUG: remove_ob(): name %s, destroyed leaving object\n", tmp->debug_desc ());
1153	"leaving object\n", &tmp->name, &tmp->arch->name);
1154	}	1065	}
1155	}
1156		1066
1157	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */	1067	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */
1158		1068	//TODO: why is this horrible hacka fix? get rid of this code=bug! (schmorp)
1159	if(tmp->above == tmp)	1069	if (tmp->above == tmp)
1160	tmp->above = NULL;	1070	tmp->above = 0;
		1071
1161	last=tmp;	1072	last = tmp;
1162	}	1073	}
		1074
1163	/* last == NULL of there are no objects on this space */	1075	/* last == NULL if there are no objects on this space */
1164	if (last==NULL) {	1076	//TODO: this makes little sense, why only update the topmost object?
1165	/* set P_NEED_UPDATE, otherwise update_position will complain. In theory,	1077	if (!last)
1166	* we could preserve the flags (GET_MAP_FLAGS), but update_position figures	1078	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	1079	else
1174	update_object(last, UP_OBJ_REMOVE);	1080	update_object (last, UP_OBJ_REMOVE);
1175		1081
1176	if(QUERY_FLAG(op,FLAG_BLOCKSVIEW)|| (op->glow_radius != 0))	1082	if (flag [FLAG_BLOCKSVIEW] || glow_radius)
1177	update_all_los(op->map, op->x, op->y);	1083	update_all_los (map, x, y);
1178		1084	}
1179	}	1085	}
1180		1086
1181	/*	1087	/*
1182	* merge_ob(op,top):	1088	* merge_ob(op,top):
1183	*	1089	*
1184	* This function goes through all objects below and including top, and	1090	* This function goes through all objects below and including top, and
1185	* merges op to the first matching object.	1091	* merges op to the first matching object.
1186	* If top is NULL, it is calculated.	1092	* If top is NULL, it is calculated.
1187	* Returns pointer to object if it succeded in the merge, otherwise NULL	1093	* Returns pointer to object if it succeded in the merge, otherwise NULL
1188	*/	1094	*/
1189		1095	object *
1190	object *merge_ob(object *op, object *top) {	1096	merge_ob (object *op, object *top)
		1097	{
1191	if(!op->nrof)	1098	if (!op->nrof)
1192	return 0;	1099	return 0;
1193	if(top==NULL)	1100
		1101	if (top)
1194	for(top=op;top!=NULL&&top->above!=NULL;top=top->above);	1102	for (top = op; top && top->above; top = top->above)
		1103	;
		1104
1195	for(;top!=NULL;top=top->below) {	1105	for (; top; top = top->below)
		1106	{
1196	if(top==op)	1107	if (top == op)
1197	continue;	1108	continue;
1198	if (CAN_MERGE(op,top))	1109
1199	{	1110	if (object::can_merge (op, top))
		1111	{
1200	top->nrof+=op->nrof;	1112	top->nrof += op->nrof;
		1113
1201	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/	1114	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/
1202	op->weight = 0; /* Don't want any adjustements now */	1115	op->weight = 0; /* Don't want any adjustements now */
1203	remove_ob(op);	1116	op->destroy ();
1204	free_object(op);
1205	return top;	1117	return top;
1206	}	1118	}
1207	}	1119	}
		1120
1208	return NULL;	1121	return 0;
1209	}	1122	}
1210		1123
1211	/*	1124	/*
1212	* same as insert_ob_in_map except it handle separate coordinates and do a clean	1125	* same as insert_ob_in_map except it handle separate coordinates and do a clean
1213	* job preparing multi-part monsters	1126	* job preparing multi-part monsters
1214	*/	1127	*/
		1128	object *
1215	object *insert_ob_in_map_at(object *op, mapstruct *m, object *originator, int flag, int x, int y){	1129	insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)
1216	object* tmp;	1130	{
1217	if (op->head)	1131	for (object *tmp = op->head_ (); tmp; tmp = tmp->more)
1218	op=op->head;	1132	{
1219	for (tmp=op;tmp;tmp=tmp->more){
1220	tmp->x=x+tmp->arch->clone.x;	1133	tmp->x = x + tmp->arch->clone.x;
1221	tmp->y=y+tmp->arch->clone.y;	1134	tmp->y = y + tmp->arch->clone.y;
1222	}	1135	}
		1136
1223	return insert_ob_in_map (op, m, originator, flag);	1137	return insert_ob_in_map (op, m, originator, flag);
1224	}	1138	}
1225		1139
1226	/*	1140	/*
1227	* insert_ob_in_map (op, map, originator, flag):	1141	* insert_ob_in_map (op, map, originator, flag):
1228	* This function inserts the object in the two-way linked list	1142	* This function inserts the object in the two-way linked list
…		…
1241	* Return value:	1155	* Return value:
1242	* new object if 'op' was merged with other object	1156	* new object if 'op' was merged with other object
1243	* NULL if 'op' was destroyed	1157	* NULL if 'op' was destroyed
1244	* just 'op' otherwise	1158	* just 'op' otherwise
1245	*/	1159	*/
1246		1160	object *
1247	object *insert_ob_in_map (object *op, mapstruct *m, object *originator, int flag)	1161	insert_ob_in_map (object *op, maptile *m, object *originator, int flag)
1248	{	1162	{
1249	object *tmp, *top, *floor=NULL;	1163	object *tmp, *top, *floor = NULL;
1250	sint16 x,y;	1164	sint16 x, y;
1251		1165
1252	if (QUERY_FLAG (op, FLAG_FREED)) {	1166	if (QUERY_FLAG (op, FLAG_FREED))
		1167	{
1253	LOG (llevError, "Trying to insert freed object!\n");	1168	LOG (llevError, "Trying to insert freed object!\n");
1254	return NULL;	1169	return NULL;
		1170	}
		1171
		1172	if (!m)
1255	}	1173	{
1256	if(m==NULL) {
1257	dump_object(op);	1174	char *dump = dump_object (op);
1258	LOG(llevError,"Trying to insert in null-map!\n%s\n",errmsg);	1175	LOG (llevError, "Trying to insert in null-map!\n%s\n", dump);
		1176	free (dump);
1259	return op;	1177	return op;
1260	}	1178	}
		1179
1261	if(out_of_map(m,op->x,op->y)) {	1180	if (out_of_map (m, op->x, op->y))
		1181	{
1262	dump_object(op);	1182	char *dump = dump_object (op);
1263	LOG(llevError,"Trying to insert object outside the map.\n%s\n", errmsg);	1183	LOG (llevError, "Trying to insert object outside the map.\n%s\n", dump);
1264	#ifdef MANY_CORES	1184	#ifdef MANY_CORES
1265	/* Better to catch this here, as otherwise the next use of this object	1185	/* 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	1186	* is likely to cause a crash. Better to find out where it is getting
1267	* improperly inserted.	1187	* improperly inserted.
1268	*/	1188	*/
1269	abort();	1189	abort ();
1270	#endif	1190	#endif
		1191	free (dump);
1271	return op;	1192	return op;
1272	}	1193	}
		1194
1273	if(!QUERY_FLAG(op,FLAG_REMOVED)) {	1195	if (!QUERY_FLAG (op, FLAG_REMOVED))
		1196	{
1274	dump_object(op);	1197	char *dump = dump_object (op);
1275	LOG(llevError,"Trying to insert (map) inserted object.\n%s\n", errmsg);	1198	LOG (llevError, "Trying to insert (map) inserted object.\n%s\n", dump);
		1199	free (dump);
1276	return op;	1200	return op;
		1201	}
		1202
		1203	if (op->more)
1277	}	1204	{
1278	if(op->more!=NULL) {
1279	/* The part may be on a different map. */	1205	/* The part may be on a different map. */
1280		1206
1281	object *more = op->more;	1207	object *more = op->more;
1282		1208
1283	/* We really need the caller to normalize coordinates - if	1209	/* We really need the caller to normalise coordinates - if
1284	* we set the map, that doesn't work if the location is within	1210	* 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	1211	* a map and this is straddling an edge. So only if coordinate
1286	* is clear wrong do we normalize it.	1212	* is clear wrong do we normalise it.
1287	*/	1213	*/
1288	if (OUT_OF_REAL_MAP(more->map, more->x, more->y)) {	1214	if (OUT_OF_REAL_MAP (more->map, more->x, more->y))
1289	more->map = get_map_from_coord(m, &more->x, &more->y);	1215	more->map = get_map_from_coord (m, &more->x, &more->y);
1290	} else if (!more->map) {	1216	else if (!more->map)
		1217	{
1291	/* For backwards compatibility - when not dealing with tiled maps,	1218	/* For backwards compatibility - when not dealing with tiled maps,
1292	* more->map should always point to the parent.	1219	* more->map should always point to the parent.
1293	*/	1220	*/
1294	more->map = m;	1221	more->map = m;
1295	}	1222	}
1296		1223
1297	if (insert_ob_in_map(more, more->map, originator, flag) == NULL) {	1224	if (insert_ob_in_map (more, more->map, originator, flag) == NULL)
		1225	{
1298	if ( ! op->head)	1226	if (!op->head)
1299	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");	1227	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");
		1228
1300	return NULL;	1229	return 0;
1301	}	1230	}
1302	}	1231	}
		1232
1303	CLEAR_FLAG(op,FLAG_REMOVED);	1233	CLEAR_FLAG (op, FLAG_REMOVED);
1304		1234
1305	/* Ideally, the caller figures this out. However, it complicates a lot	1235	/* 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	1236	* of areas of callers (eg, anything that uses find_free_spot would now
1307	* need extra work	1237	* need extra work
1308	*/	1238	*/
1309	op->map=get_map_from_coord(m, &op->x, &op->y);	1239	op->map = get_map_from_coord (m, &op->x, &op->y);
1310	x = op->x;	1240	x = op->x;
1311	y = op->y;	1241	y = op->y;
1312		1242
1313	/* this has to be done after we translate the coordinates.	1243	/* this has to be done after we translate the coordinates.
1314	*/	1244	*/
1315	if(op->nrof && !(flag & INS_NO_MERGE)) {	1245	if (op->nrof && !(flag & INS_NO_MERGE))
1316	for(tmp=GET_MAP_OB(op->map,x,y);tmp!=NULL;tmp=tmp->above)	1246	for (tmp = GET_MAP_OB (op->map, x, y); tmp; tmp = tmp->above)
1317	if (CAN_MERGE(op,tmp)) {	1247	if (object::can_merge (op, tmp))
		1248	{
1318	op->nrof+=tmp->nrof;	1249	op->nrof += tmp->nrof;
1319	remove_ob(tmp);	1250	tmp->destroy ();
1320	free_object(tmp);	1251	}
		1252
		1253	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */
		1254	CLEAR_FLAG (op, FLAG_INV_LOCKED);
		1255
		1256	if (!QUERY_FLAG (op, FLAG_ALIVE))
		1257	CLEAR_FLAG (op, FLAG_NO_STEAL);
		1258
		1259	if (flag & INS_BELOW_ORIGINATOR)
		1260	{
		1261	if (originator->map != op->map || originator->x != op->x || originator->y != op->y)
		1262	{
		1263	LOG (llevError, "insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");
		1264	abort ();
		1265	}
		1266
		1267	op->above = originator;
		1268	op->below = originator->below;
		1269
		1270	if (op->below)
		1271	op->below->above = op;
		1272	else
		1273	op->ms ().bot = op;
		1274
		1275	/* since *below* originator, no need to update top */
		1276	originator->below = op;
		1277	}
		1278	else
		1279	{
		1280	/* If there are other objects, then */
		1281	if ((!(flag & INS_MAP_LOAD)) && ((top = GET_MAP_OB (op->map, op->x, op->y)) != NULL))
		1282	{
		1283	object *last = 0;
		1284
		1285	/*
		1286	* If there are multiple objects on this space, we do some trickier handling.
		1287	* We've already dealt with merging if appropriate.
		1288	* Generally, we want to put the new object on top. But if
		1289	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last
		1290	* floor, we want to insert above that and no further.
		1291	* Also, if there are spell objects on this space, we stop processing
		1292	* once we get to them. This reduces the need to traverse over all of
		1293	* them when adding another one - this saves quite a bit of cpu time
		1294	* when lots of spells are cast in one area. Currently, it is presumed
		1295	* that flying non pickable objects are spell objects.
		1296	*/
		1297	while (top)
		1298	{
		1299	if (QUERY_FLAG (top, FLAG_IS_FLOOR) || QUERY_FLAG (top, FLAG_OVERLAY_FLOOR))
		1300	floor = top;
		1301
		1302	if (QUERY_FLAG (top, FLAG_NO_PICK) && (top->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (top, FLAG_IS_FLOOR))
		1303	{
		1304	/* We insert above top, so we want this object below this */
		1305	top = top->below;
		1306	break;
		1307	}
		1308
		1309	last = top;
		1310	top = top->above;
1321	}	1311	}
1322	}
1323		1312
1324	CLEAR_FLAG(op,FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */	1313	/* Don't want top to be NULL, so set it to the last valid object */
1325	CLEAR_FLAG(op, FLAG_INV_LOCKED);	1314	top = last;
1326	if (!QUERY_FLAG(op, FLAG_ALIVE))
1327	CLEAR_FLAG(op, FLAG_NO_STEAL);
1328		1315
1329	if (flag & INS_BELOW_ORIGINATOR) {	1316	/* We let update_position deal with figuring out what the space
1330	if (originator->map != op->map || originator->x != op->x ||	1317	* looks like instead of lots of conditions here.
1331	originator->y != op->y) {	1318	* 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	/*	1319	*/
1346	* If there are multiple objects on this space, we do some trickier handling.	1320
1347	* We've already dealt with merging if appropriate.	1321	/* Have object 'fall below' other objects that block view.
1348	* Generally, we want to put the new object on top. But if	1322	* Unless those objects are exits, type 66
1349	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last	1323	* If INS_ON_TOP is used, don't do this processing
1350	* floor, we want to insert above that and no further.	1324	* Need to find the object that in fact blocks view, otherwise
1351	* Also, if there are spell objects on this space, we stop processing	1325	* stacking is a bit odd.
1352	* once we get to them. This reduces the need to traverse over all of	1326	*/
1353	* them when adding another one - this saves quite a bit of cpu time	1327	if (!(flag & INS_ON_TOP) &&
1354	* when lots of spells are cast in one area. Currently, it is presumed	1328	(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.	1329	{
		1330	for (last = top; last != floor; last = last->below)
		1331	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))
		1332	break;
		1333	/* Check to see if we found the object that blocks view,
		1334	* and make sure we have a below pointer for it so that
		1335	* we can get inserted below this one, which requires we
		1336	* set top to the object below us.
1356	*/	1337	*/
1357		1338	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;	1339	top = last->below;
1371	}	1340	}
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 */	1341	} /* If objects on this space */
		1342
1399	if (flag & INS_MAP_LOAD)	1343	if (flag & INS_MAP_LOAD)
1400	top = GET_MAP_TOP(op->map,op->x,op->y);	1344	top = GET_MAP_TOP (op->map, op->x, op->y);
		1345
1401	if (flag & INS_ABOVE_FLOOR_ONLY) top = floor;	1346	if (flag & INS_ABOVE_FLOOR_ONLY)
		1347	top = floor;
1402		1348
1403	/* Top is the object that our object (op) is going to get inserted above.	1349	/* Top is the object that our object (op) is going to get inserted above.
1404	*/	1350	*/
1405		1351
1406	/* First object on this space */	1352	/* First object on this space */
1407	if (!top) {	1353	if (!top)
		1354	{
1408	op->above = GET_MAP_OB(op->map, op->x, op->y);	1355	op->above = GET_MAP_OB (op->map, op->x, op->y);
		1356
		1357	if (op->above)
1409	if (op->above) op->above->below = op;	1358	op->above->below = op;
		1359
1410	op->below = NULL;	1360	op->below = 0;
1411	SET_MAP_OB(op->map, op->x, op->y, op);	1361	op->ms ().bot = op;
		1362	}
		1363	else
1412	} else { /* get inserted into the stack above top */	1364	{ /* get inserted into the stack above top */
1413	op->above = top->above;	1365	op->above = top->above;
		1366
		1367	if (op->above)
1414	if (op->above) op->above->below = op;	1368	op->above->below = op;
		1369
1415	op->below = top;	1370	op->below = top;
1416	top->above = op;	1371	top->above = op;
1417	}	1372	}
		1373
1418	if (op->above==NULL)	1374	if (!op->above)
1419	SET_MAP_TOP(op->map,op->x, op->y, op);	1375	op->ms ().top = op;
1420	} /* else not INS_BELOW_ORIGINATOR */	1376	} /* else not INS_BELOW_ORIGINATOR */
1421		1377
1422	if(op->type==PLAYER)	1378	if (op->type == PLAYER)
		1379	{
1423	op->contr->do_los=1;	1380	op->contr->do_los = 1;
		1381	++op->map->players;
		1382	op->map->touch ();
		1383	}
1424		1384
		1385	op->map->dirty = true;
		1386
1425	/* If we have a floor, we know the player, if any, will be above	1387	/* 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.	1388	* it, so save a few ticks and start from there.
1427	*/	1389	*/
1428	if (!(flag & INS_MAP_LOAD))	1390	if (!(flag & INS_MAP_LOAD))
1429	for(tmp=floor?floor:GET_MAP_OB(op->map,op->x,op->y);tmp!=NULL;tmp=tmp->above) {	1391	if (object *pl = op->ms ().player ())
1430	if (tmp->type == PLAYER)	1392	if (pl->contr->ns)
1431	tmp->contr->socket.update_look=1;	1393	pl->contr->ns->floorbox_update ();
1432	}
1433		1394
1434	/* If this object glows, it may affect lighting conditions that are	1395	/* If this object glows, it may affect lighting conditions that are
1435	* visible to others on this map. But update_all_los is really	1396	* 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	1397	* 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	1398	* on the map will get recalculated. The players could very well
1438	* be far away from this change and not affected in any way -	1399	* be far away from this change and not affected in any way -
1439	* this should get redone to only look for players within range,	1400	* this should get redone to only look for players within range,
1440	* or just updating the P_NEED_UPDATE for spaces within this area	1401	* or just updating the P_UPTODATE for spaces within this area
1441	* of effect may be sufficient.	1402	* of effect may be sufficient.
1442	*/	1403	*/
1443	if(MAP_DARKNESS(op->map) && (op->glow_radius != 0))	1404	if (op->map->darkness && (op->glow_radius != 0))
1444	update_all_los(op->map, op->x, op->y);	1405	update_all_los (op->map, op->x, op->y);
1445		1406
1446
1447	/* updates flags (blocked, alive, no magic, etc) for this map space */	1407	/* updates flags (blocked, alive, no magic, etc) for this map space */
1448	update_object(op,UP_OBJ_INSERT);	1408	update_object (op, UP_OBJ_INSERT);
1449		1409
		1410	INVOKE_OBJECT (INSERT, op);
1450		1411
1451	/* Don't know if moving this to the end will break anything. However,	1412	/* 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.	1413	* we want to have floorbox_update called before calling this.
1453	*	1414	*
1454	* check_move_on() must be after this because code called from	1415	* check_move_on() must be after this because code called from
1455	* check_move_on() depends on correct map flags (so functions like	1416	* check_move_on() depends on correct map flags (so functions like
1456	* blocked() and wall() work properly), and these flags are updated by	1417	* blocked() and wall() work properly), and these flags are updated by
1457	* update_object().	1418	* update_object().
1458	*/	1419	*/
1459		1420
1460	/* if this is not the head or flag has been passed, don't check walk on status */	1421	/* 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) {	1422	if (!(flag & INS_NO_WALK_ON) && !op->head)
		1423	{
1463	if (check_move_on(op, originator))	1424	if (check_move_on (op, originator))
1464	return NULL;	1425	return 0;
1465		1426
1466	/* If we are a multi part object, lets work our way through the check	1427	/* If we are a multi part object, lets work our way through the check
1467	* walk on's.	1428	* walk on's.
1468	*/	1429	*/
1469	for (tmp=op->more; tmp!=NULL; tmp=tmp->more)	1430	for (tmp = op->more; tmp != NULL; tmp = tmp->more)
1470	if (check_move_on (tmp, originator))	1431	if (check_move_on (tmp, originator))
1471	return NULL;	1432	return 0;
1472	}	1433	}
		1434
1473	return op;	1435	return op;
1474	}	1436	}
1475		1437
1476	/* this function inserts an object in the map, but if it	1438	/* 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.	1439	* 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.	1440	* op is the object to insert it under: supplies x and the map.
1479	*/	1441	*/
		1442	void
1480	void replace_insert_ob_in_map(const char *arch_string, object *op) {	1443	replace_insert_ob_in_map (const char *arch_string, object *op)
1481	object *tmp;	1444	{
1482	object *tmp1;	1445	object *tmp, *tmp1;
1483		1446
1484	/* first search for itself and remove any old instances */	1447	/* first search for itself and remove any old instances */
1485		1448
1486	for(tmp=GET_MAP_OB(op->map,op->x,op->y); tmp!=NULL; tmp=tmp->above) {	1449	for (tmp = op->ms ().bot; tmp; tmp = tmp->above)
1487	if(!strcmp(tmp->arch->name,arch_string)) /* same archetype */ {	1450	if (!strcmp (tmp->arch->name, arch_string)) /* same archetype */
1488	remove_ob(tmp);	1451	tmp->destroy ();
1489	free_object(tmp);
1490	}
1491	}
1492		1452
1493	tmp1=arch_to_object(find_archetype(arch_string));	1453	tmp1 = arch_to_object (archetype::find (arch_string));
1494		1454
1495		1455	tmp1->x = op->x;
1496	tmp1->x = op->x; tmp1->y = op->y;	1456	tmp1->y = op->y;
1497	insert_ob_in_map(tmp1,op->map,op,0);	1457	insert_ob_in_map (tmp1, op->map, op, 0);
1498	}	1458	}
		1459
		1460	object *
		1461	object::insert_at (object *where, object *originator, int flags)
		1462	{
		1463	where->map->insert (this, where->x, where->y, originator, flags);
		1464	}
1499		1465
1500	/*	1466	/*
1501	* get_split_ob(ob,nr) splits up ob into two parts. The part which	1467	* 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	1468	* is returned contains nr objects, and the remaining parts contains
1503	* the rest (or is removed and freed if that number is 0).	1469	* the rest (or is removed and freed if that number is 0).
1504	* On failure, NULL is returned, and the reason put into the	1470	* On failure, NULL is returned, and the reason put into the
1505	* global static errmsg array.	1471	* global static errmsg array.
1506	*/	1472	*/
1507		1473	object *
1508	object *get_split_ob(object *orig_ob, uint32 nr) {	1474	get_split_ob (object *orig_ob, uint32 nr)
		1475	{
1509	object *newob;	1476	object *newob;
1510	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);	1477	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);
1511		1478
1512	if(orig_ob->nrof<nr) {	1479	if (orig_ob->nrof < nr)
1513	sprintf(errmsg,"There are only %d %ss.",	1480	{
1514	orig_ob->nrof?orig_ob->nrof:1, &orig_ob->name);	1481	sprintf (errmsg, "There are only %d %ss.", orig_ob->nrof ? orig_ob->nrof : 1, &orig_ob->name);
1515	return NULL;	1482	return NULL;
1516	}	1483	}
		1484
1517	newob = object_create_clone(orig_ob);	1485	newob = object_create_clone (orig_ob);
		1486
1518	if((orig_ob->nrof-=nr)<1) {	1487	if ((orig_ob->nrof -= nr) < 1)
1519	if ( ! is_removed)	1488	orig_ob->destroy (1);
1520	remove_ob(orig_ob);
1521	free_object2(orig_ob, 1);
1522	}
1523	else if ( ! is_removed) {	1489	else if (!is_removed)
		1490	{
1524	if(orig_ob->env!=NULL)	1491	if (orig_ob->env != NULL)
1525	sub_weight (orig_ob->env,orig_ob->weight*nr);	1492	sub_weight (orig_ob->env, orig_ob->weight * nr);
1526	if (orig_ob->env == NULL && orig_ob->map->in_memory!=MAP_IN_MEMORY) {	1493	if (orig_ob->env == NULL && orig_ob->map->in_memory != MAP_IN_MEMORY)
		1494	{
1527	strcpy(errmsg, "Tried to split object whose map is not in memory.");	1495	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");	1496	LOG (llevDebug, "Error, Tried to split object whose map is not in memory.\n");
1530	return NULL;	1497	return NULL;
1531	}	1498	}
1532	}	1499	}
		1500
1533	newob->nrof=nr;	1501	newob->nrof = nr;
1534		1502
1535	return newob;	1503	return newob;
1536	}	1504	}
1537		1505
1538	/*	1506	/*
1539	* decrease_ob_nr(object, number) decreases a specified number from	1507	* decrease_ob_nr(object, number) decreases a specified number from
1540	* the amount of an object. If the amount reaches 0, the object	1508	* the amount of an object. If the amount reaches 0, the object
1541	* is subsequently removed and freed.	1509	* is subsequently removed and freed.
1542	*	1510	*
1543	* Return value: 'op' if something is left, NULL if the amount reached 0	1511	* Return value: 'op' if something is left, NULL if the amount reached 0
1544	*/	1512	*/
1545		1513
		1514	object *
1546	object *decrease_ob_nr (object *op, uint32 i)	1515	decrease_ob_nr (object *op, uint32 i)
1547	{	1516	{
1548	object *tmp;	1517	object *tmp;
1549	player *pl;
1550		1518
1551	if (i == 0) /* objects with op->nrof require this check */	1519	if (i == 0) /* objects with op->nrof require this check */
1552	return op;	1520	return op;
1553		1521
1554	if (i > op->nrof)	1522	if (i > op->nrof)
1555	i = op->nrof;	1523	i = op->nrof;
1556		1524
1557	if (QUERY_FLAG (op, FLAG_REMOVED))	1525	if (QUERY_FLAG (op, FLAG_REMOVED))
		1526	op->nrof -= i;
		1527	else if (op->env)
		1528	{
		1529	/* is this object in the players inventory, or sub container
		1530	* therein?
		1531	*/
		1532	tmp = op->in_player ();
		1533	/* nope. Is this a container the player has opened?
		1534	* If so, set tmp to that player.
		1535	* IMO, searching through all the players will mostly
		1536	* likely be quicker than following op->env to the map,
		1537	* and then searching the map for a player.
		1538	*/
		1539	if (!tmp)
		1540	for_all_players (pl)
		1541	if (pl->ob->container == op->env)
		1542	{
		1543	tmp = pl->ob;
		1544	break;
		1545	}
		1546
		1547	if (i < op->nrof)
		1548	{
		1549	sub_weight (op->env, op->weight * i);
		1550	op->nrof -= i;
		1551	if (tmp)
		1552	esrv_send_item (tmp, op);
		1553	}
		1554	else
		1555	{
		1556	op->remove ();
		1557	op->nrof = 0;
		1558	if (tmp)
		1559	esrv_del_item (tmp->contr, op->count);
		1560	}
1558	{	1561	}
		1562	else
		1563	{
		1564	object *above = op->above;
		1565
		1566	if (i < op->nrof)
1559	op->nrof -= i;	1567	op->nrof -= i;
1560	}	1568	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	}	1569	{
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);	1570	op->remove ();
1588	op->nrof = 0;	1571	op->nrof = 0;
1589	if (tmp) {
1590	esrv_del_item(tmp->contr, op->count);
1591	}	1572	}
1592	}
1593	}
1594	else
1595	{
1596	object *above = op->above;
1597		1573
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 */	1574	/* Since we just removed op, op->above is null */
1605	for (tmp = above; tmp != NULL; tmp = tmp->above)	1575	for (tmp = above; tmp; tmp = tmp->above)
1606	if (tmp->type == PLAYER) {	1576	if (tmp->type == PLAYER)
		1577	{
1607	if (op->nrof)	1578	if (op->nrof)
1608	esrv_send_item(tmp, op);	1579	esrv_send_item (tmp, op);
1609	else	1580	else
1610	esrv_del_item(tmp->contr, op->count);	1581	esrv_del_item (tmp->contr, op->count);
1611	}	1582	}
1612	}	1583	}
1613		1584
1614	if (op->nrof) {	1585	if (op->nrof)
1615	return op;	1586	return op;
1616	} else {	1587	else
1617	free_object (op);	1588	{
		1589	op->destroy ();
1618	return NULL;	1590	return 0;
1619	}	1591	}
1620	}	1592	}
1621		1593
1622	/*	1594	/*
1623	* add_weight(object, weight) adds the specified weight to an object,	1595	* add_weight(object, weight) adds the specified weight to an object,
1624	* and also updates how much the environment(s) is/are carrying.	1596	* and also updates how much the environment(s) is/are carrying.
1625	*/	1597	*/
1626		1598
		1599	void
1627	void add_weight (object *op, signed long weight) {	1600	add_weight (object *op, signed long weight)
		1601	{
1628	while (op!=NULL) {	1602	while (op != NULL)
		1603	{
1629	if (op->type == CONTAINER) {	1604	if (op->type == CONTAINER)
1630	weight=(signed long)(weight*(100-op->stats.Str)/100);	1605	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1631	}	1606
1632	op->carrying+=weight;	1607	op->carrying += weight;
1633	op=op->env;	1608	op = op->env;
1634	}	1609	}
1635	}	1610	}
1636		1611
		1612	object *
		1613	insert_ob_in_ob (object *op, object *where)
		1614	{
		1615	if (!where)
		1616	{
		1617	char *dump = dump_object (op);
		1618	LOG (llevError, "Trying to put object in NULL.\n%s\n", dump);
		1619	free (dump);
		1620	return op;
		1621	}
		1622
		1623	if (where->head)
		1624	{
		1625	LOG (llevDebug, "Warning: Tried to insert object into wrong part of multipart object.\n");
		1626	where = where->head;
		1627	}
		1628
		1629	return where->insert (op);
		1630	}
		1631
1637	/*	1632	/*
1638	* insert_ob_in_ob(op,environment):	1633	* env->insert (op)
1639	* This function inserts the object op in the linked list	1634	* This function inserts the object op in the linked list
1640	* inside the object environment.	1635	* inside the object environment.
1641	*	1636	*
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	1637	* The function returns now pointer to inserted item, and return value can
1648	* be != op, if items are merged. -Tero	1638	* be != op, if items are merged. -Tero
1649	*/	1639	*/
1650		1640
1651	object *insert_ob_in_ob(object *op,object *where) {	1641	object *
		1642	object::insert (object *op)
		1643	{
1652	object *tmp, *otmp;	1644	object *tmp, *otmp;
1653		1645
1654	if(!QUERY_FLAG(op,FLAG_REMOVED)) {	1646	if (!QUERY_FLAG (op, FLAG_REMOVED))
1655	dump_object(op);	1647	op->remove ();
1656	LOG(llevError,"Trying to insert (ob) inserted object.\n%s\n", errmsg);	1648
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) {	1649	if (op->more)
		1650	{
1670	LOG(llevError, "Tried to insert multipart object %s (%d)\n",	1651	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);
1671	&op->name, op->count);
1672	return op;	1652	return op;
1673	}	1653	}
		1654
1674	CLEAR_FLAG(op, FLAG_OBJ_ORIGINAL);	1655	CLEAR_FLAG (op, FLAG_OBJ_ORIGINAL);
1675	CLEAR_FLAG(op, FLAG_REMOVED);	1656	CLEAR_FLAG (op, FLAG_REMOVED);
1676	if(op->nrof) {	1657	if (op->nrof)
		1658	{
1677	for(tmp=where->inv;tmp!=NULL;tmp=tmp->below)	1659	for (tmp = inv; tmp != NULL; tmp = tmp->below)
1678	if ( CAN_MERGE(tmp,op) ) {	1660	if (object::can_merge (tmp, op))
		1661	{
1679	/* return the original object and remove inserted object	1662	/* return the original object and remove inserted object
1680	(client needs the original object) */	1663	(client needs the original object) */
1681	tmp->nrof += op->nrof;	1664	tmp->nrof += op->nrof;
1682	/* Weight handling gets pretty funky. Since we are adding to	1665	/* Weight handling gets pretty funky. Since we are adding to
1683	* tmp->nrof, we need to increase the weight.	1666	* tmp->nrof, we need to increase the weight.
1684	*/	1667	*/
1685	add_weight (where, op->weight*op->nrof);	1668	add_weight (this, op->weight * op->nrof);
1686	SET_FLAG(op, FLAG_REMOVED);	1669	SET_FLAG (op, FLAG_REMOVED);
1687	free_object(op); /* free the inserted object */	1670	op->destroy (); /* free the inserted object */
1688	op = tmp;	1671	op = tmp;
1689	remove_ob (op); /* and fix old object's links */	1672	op->remove (); /* and fix old object's links */
1690	CLEAR_FLAG(op, FLAG_REMOVED);	1673	CLEAR_FLAG (op, FLAG_REMOVED);
1691	break;	1674	break;
1692	}	1675	}
1693		1676
1694	/* I assume combined objects have no inventory	1677	/* I assume combined objects have no inventory
1695	* We add the weight - this object could have just been removed	1678	* We add the weight - this object could have just been removed
1696	* (if it was possible to merge). calling remove_ob will subtract	1679	* (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	1680	* the weight, so we need to add it in again, since we actually do
1698	* the linking below	1681	* the linking below
1699	*/	1682	*/
1700	add_weight (where, op->weight*op->nrof);	1683	add_weight (this, op->weight * op->nrof);
		1684	}
1701	} else	1685	else
1702	add_weight (where, (op->weight+op->carrying));	1686	add_weight (this, (op->weight + op->carrying));
1703		1687
1704	otmp=is_player_inv(where);	1688	otmp = this->in_player ();
1705	if (otmp&&otmp->contr!=NULL) {	1689	if (otmp && otmp->contr)
1706	if (!QUERY_FLAG(otmp,FLAG_NO_FIX_PLAYER))	1690	if (!QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1707	fix_player(otmp);	1691	otmp->update_stats ();
1708	}
1709		1692
1710	op->map=NULL;	1693	op->map = 0;
1711	op->env=where;	1694	op->env = this;
1712	op->above=NULL;	1695	op->above = 0;
1713	op->below=NULL;	1696	op->below = 0;
1714	op->x=0,op->y=0;	1697	op->x = 0, op->y = 0;
1715		1698
1716	/* reset the light list and los of the players on the map */	1699	/* reset the light list and los of the players on the map */
1717	if((op->glow_radius!=0)&&where->map)	1700	if ((op->glow_radius != 0) && map)
1718	{	1701	{
1719	#ifdef DEBUG_LIGHTS	1702	#ifdef DEBUG_LIGHTS
1720	LOG(llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n",	1703	LOG (llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n", op->name);
1721	op->name);
1722	#endif /* DEBUG_LIGHTS */	1704	#endif /* DEBUG_LIGHTS */
1723	if (MAP_DARKNESS(where->map)) update_all_los(where->map, where->x, where->y);	1705	if (map->darkness)
		1706	update_all_los (map, x, y);
1724	}	1707	}
1725		1708
1726	/* Client has no idea of ordering so lets not bother ordering it here.	1709	/* Client has no idea of ordering so lets not bother ordering it here.
1727	* It sure simplifies this function...	1710	* It sure simplifies this function...
1728	*/	1711	*/
1729	if (where->inv==NULL)	1712	if (!inv)
1730	where->inv=op;	1713	inv = op;
1731	else {	1714	else
		1715	{
1732	op->below = where->inv;	1716	op->below = inv;
1733	op->below->above = op;	1717	op->below->above = op;
1734	where->inv = op;	1718	inv = op;
1735	}	1719	}
		1720
		1721	INVOKE_OBJECT (INSERT, this);
		1722
1736	return op;	1723	return op;
1737	}	1724	}
1738		1725
1739	/*	1726	/*
1740	* Checks if any objects has a move_type that matches objects	1727	* Checks if any objects has a move_type that matches objects
…		…
1754	*	1741	*
1755	* MSW 2001-07-08: Check all objects on space, not just those below	1742	* 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	1743	* object being inserted. insert_ob_in_map may not put new objects
1757	* on top.	1744	* on top.
1758	*/	1745	*/
1759		1746	int
1760	int check_move_on (object *op, object *originator)	1747	check_move_on (object *op, object *originator)
1761	{	1748	{
1762	object *tmp;	1749	object *tmp;
1763	tag_t tag;
1764	mapstruct *m=op->map;	1750	maptile *m = op->map;
1765	int x=op->x, y=op->y;	1751	int x = op->x, y = op->y;
		1752
1766	MoveType move_on, move_slow, move_block;	1753	MoveType move_on, move_slow, move_block;
1767		1754
1768	if(QUERY_FLAG(op,FLAG_NO_APPLY))	1755	if (QUERY_FLAG (op, FLAG_NO_APPLY))
1769	return 0;	1756	return 0;
1770		1757
1771	tag = op->count;
1772
1773	move_on = GET_MAP_MOVE_ON(op->map, op->x, op->y);	1758	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);	1759	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);	1760	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);
1776		1761
1777	/* if nothing on this space will slow op down or be applied,	1762	/* 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	1763	* 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	1764	* is set, as lots of objects don't have it set - we treat that
1780	* as walking.	1765	* as walking.
1781	*/	1766	*/
1782	if (op->move_type && !(op->move_type & move_on) && !(op->move_type & move_slow))	1767	if (op->move_type && !(op->move_type & move_on) && !(op->move_type & move_slow))
1783	return 0;	1768	return 0;
1784		1769
1785	/* This is basically inverse logic of that below - basically,	1770	/* This is basically inverse logic of that below - basically,
1786	* if the object can avoid the move on or slow move, they do so,	1771	* 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	1772	* but can't do it if the alternate movement they are using is
1788	* blocked. Logic on this seems confusing, but does seem correct.	1773	* blocked. Logic on this seems confusing, but does seem correct.
1789	*/	1774	*/
1790	if ((op->move_type & ~move_on & ~move_block) != 0 &&	1775	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;	1776	return 0;
1792		1777
1793	/* The objects have to be checked from top to bottom.	1778	/* The objects have to be checked from top to bottom.
1794	* Hence, we first go to the top:	1779	* Hence, we first go to the top:
1795	*/	1780	*/
1796		1781
1797	for (tmp=GET_MAP_OB(op->map, op->x, op->y); tmp!=NULL &&	1782	for (tmp = op->ms ().bot; tmp && tmp->above; tmp = tmp->above)
1798	tmp->above!=NULL; tmp=tmp->above) {	1783	{
1799	/* Trim the search when we find the first other spell effect	1784	/* Trim the search when we find the first other spell effect
1800	* this helps performance so that if a space has 50 spell objects,	1785	* this helps performance so that if a space has 50 spell objects,
1801	* we don't need to check all of them.	1786	* we don't need to check all of them.
1802	*/	1787	*/
1803	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG(tmp, FLAG_NO_PICK)) break;	1788	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG (tmp, FLAG_NO_PICK))
		1789	break;
		1790	}
		1791
		1792	for (; tmp; tmp = tmp->below)
1804	}	1793	{
1805	for(;tmp!=NULL; tmp=tmp->below) {	1794	if (tmp == op)
1806	if (tmp == op) continue; /* Can't apply yourself */	1795	continue; /* Can't apply yourself */
1807		1796
1808	/* Check to see if one of the movement types should be slowed down.	1797	/* 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	1798	* Second check makes sure that the movement types not being slowed
1810	* (~slow_move) is not blocked on this space - just because the	1799	* (~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	1800	* 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.	1801	* swim on that space, can't use it to avoid the penalty.
1813	*/	1802	*/
1814	if (!QUERY_FLAG(op, FLAG_WIZPASS)) {	1803	if (!QUERY_FLAG (op, FLAG_WIZPASS))
		1804	{
1815	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||	1805	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)) {	1806	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))
		1807	{
1818		1808
1819	float diff;	1809	float
1820
1821	diff = tmp->move_slow_penalty*FABS(op->speed);	1810	diff = tmp->move_slow_penalty * FABS (op->speed);
		1811
1822	if (op->type == PLAYER) {	1812	if (op->type == PLAYER)
1823	if ((QUERY_FLAG(tmp, FLAG_IS_HILLY) && find_skill_by_number(op, SK_CLIMBING)) ||	1813	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))) {	1814	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))
1825	diff /= 4.0;	1815	diff /= 4.0;
1826	}	1816
1827	}
1828	op->speed_left -= diff;	1817	op->speed_left -= diff;
1829	}	1818	}
1830	}	1819	}
1831		1820
1832	/* Basically same logic as above, except now for actual apply. */	1821	/* Basically same logic as above, except now for actual apply. */
1833	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||	1822	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)) {	1823	((op->move_type & tmp->move_on) && (op->move_type & ~tmp->move_on & ~tmp->move_block) == 0))
1836		1824	{
1837	move_apply(tmp, op, originator);	1825	move_apply (tmp, op, originator);
		1826
1838	if (was_destroyed (op, tag))	1827	if (op->destroyed ())
1839	return 1;	1828	return 1;
1840		1829
1841	/* what the person/creature stepped onto has moved the object	1830	/* what the person/creature stepped onto has moved the object
1842	* someplace new. Don't process any further - if we did,	1831	* someplace new. Don't process any further - if we did,
1843	* have a feeling strange problems would result.	1832	* have a feeling strange problems would result.
1844	*/	1833	*/
1845	if (op->map != m || op->x != x || op->y != y) return 0;	1834	if (op->map != m || op->x != x || op->y != y)
		1835	return 0;
1846	}	1836	}
1847	}	1837	}
		1838
1848	return 0;	1839	return 0;
1849	}	1840	}
1850		1841
1851	/*	1842	/*
1852	* present_arch(arch, map, x, y) searches for any objects with	1843	* present_arch(arch, map, x, y) searches for any objects with
1853	* a matching archetype at the given map and coordinates.	1844	* a matching archetype at the given map and coordinates.
1854	* The first matching object is returned, or NULL if none.	1845	* The first matching object is returned, or NULL if none.
1855	*/	1846	*/
1856		1847	object *
1857	object *present_arch(const archetype *at, mapstruct *m, int x, int y) {	1848	present_arch (const archetype *at, maptile *m, int x, int y)
1858	object *tmp;	1849	{
1859	if(m==NULL || out_of_map(m,x,y)) {	1850	if (!m || out_of_map (m, x, y))
		1851	{
1860	LOG(llevError,"Present_arch called outside map.\n");	1852	LOG (llevError, "Present_arch called outside map.\n");
1861	return NULL;	1853	return NULL;
1862	}	1854	}
1863	for(tmp=GET_MAP_OB(m,x,y); tmp != NULL; tmp = tmp->above)	1855
		1856	for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)
1864	if(tmp->arch == at)	1857	if (tmp->arch == at)
1865	return tmp;	1858	return tmp;
		1859
1866	return NULL;	1860	return NULL;
1867	}	1861	}
1868		1862
1869	/*	1863	/*
1870	* present(type, map, x, y) searches for any objects with	1864	* present(type, map, x, y) searches for any objects with
1871	* a matching type variable at the given map and coordinates.	1865	* a matching type variable at the given map and coordinates.
1872	* The first matching object is returned, or NULL if none.	1866	* The first matching object is returned, or NULL if none.
1873	*/	1867	*/
1874		1868	object *
1875	object *present(unsigned char type,mapstruct *m, int x,int y) {	1869	present (unsigned char type, maptile *m, int x, int y)
1876	object *tmp;	1870	{
1877	if(out_of_map(m,x,y)) {	1871	if (out_of_map (m, x, y))
		1872	{
1878	LOG(llevError,"Present called outside map.\n");	1873	LOG (llevError, "Present called outside map.\n");
1879	return NULL;	1874	return NULL;
1880	}	1875	}
1881	for(tmp=GET_MAP_OB(m,x,y);tmp!=NULL;tmp=tmp->above)	1876
		1877	for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)
1882	if(tmp->type==type)	1878	if (tmp->type == type)
1883	return tmp;	1879	return tmp;
		1880
1884	return NULL;	1881	return NULL;
1885	}	1882	}
1886		1883
1887	/*	1884	/*
1888	* present_in_ob(type, object) searches for any objects with	1885	* present_in_ob(type, object) searches for any objects with
1889	* a matching type variable in the inventory of the given object.	1886	* a matching type variable in the inventory of the given object.
1890	* The first matching object is returned, or NULL if none.	1887	* The first matching object is returned, or NULL if none.
1891	*/	1888	*/
1892		1889	object *
1893	object *present_in_ob(unsigned char type, const object *op) {	1890	present_in_ob (unsigned char type, const object *op)
1894	object *tmp;	1891	{
1895	for(tmp=op->inv;tmp!=NULL;tmp=tmp->below)	1892	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
1896	if(tmp->type==type)	1893	if (tmp->type == type)
1897	return tmp;	1894	return tmp;
		1895
1898	return NULL;	1896	return NULL;
1899	}	1897	}
1900		1898
1901	/*	1899	/*
1902	* present_in_ob (type, str, object) searches for any objects with	1900	* present_in_ob (type, str, object) searches for any objects with
…		…
1910	* str is the string to match against. Note that we match against	1908	* 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	1909	* 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	1910	* spell code can use one object type (force), but change it's name
1913	* to be unique.	1911	* to be unique.
1914	*/	1912	*/
1915		1913	object *
1916	object *present_in_ob_by_name(int type, const char *str, const object *op) {	1914	present_in_ob_by_name (int type, const char *str, const object *op)
1917	object *tmp;	1915	{
1918
1919	for(tmp=op->inv; tmp!=NULL; tmp=tmp->below) {	1916	for (object *tmp = op->inv; tmp; tmp = tmp->below)
1920	if ((type==-1 || tmp->type==type) && (!strcmp(str, tmp->name)))	1917	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))
1921	return tmp;	1918	return tmp;
1922	}	1919
1923	return NULL;	1920	return 0;
1924	}	1921	}
1925		1922
1926	/*	1923	/*
1927	* present_arch_in_ob(archetype, object) searches for any objects with	1924	* present_arch_in_ob(archetype, object) searches for any objects with
1928	* a matching archetype in the inventory of the given object.	1925	* a matching archetype in the inventory of the given object.
1929	* The first matching object is returned, or NULL if none.	1926	* The first matching object is returned, or NULL if none.
1930	*/	1927	*/
1931		1928	object *
1932	object *present_arch_in_ob(const archetype *at, const object *op) {	1929	present_arch_in_ob (const archetype *at, const object *op)
1933	object *tmp;	1930	{
1934	for(tmp=op->inv;tmp!=NULL;tmp=tmp->below)	1931	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
1935	if( tmp->arch == at)	1932	if (tmp->arch == at)
1936	return tmp;	1933	return tmp;
		1934
1937	return NULL;	1935	return NULL;
1938	}	1936	}
1939		1937
1940	/*	1938	/*
1941	* activate recursively a flag on an object inventory	1939	* activate recursively a flag on an object inventory
1942	*/	1940	*/
		1941	void
1943	void flag_inv(object*op, int flag){	1942	flag_inv (object *op, int flag)
1944	object *tmp;	1943	{
1945	if(op->inv)	1944	if (op->inv)
1946	for(tmp = op->inv; tmp != NULL; tmp = tmp->below){	1945	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
		1946	{
1947	SET_FLAG(tmp, flag);	1947	SET_FLAG (tmp, flag);
1948	flag_inv(tmp,flag);	1948	flag_inv (tmp, flag);
1949	}	1949	}
		1950	}
		1951
1950	}/*	1952	/*
1951	* desactivate recursively a flag on an object inventory	1953	* deactivate recursively a flag on an object inventory
1952	*/	1954	*/
		1955	void
1953	void unflag_inv(object*op, int flag){	1956	unflag_inv (object *op, int flag)
1954	object *tmp;	1957	{
1955	if(op->inv)	1958	if (op->inv)
1956	for(tmp = op->inv; tmp != NULL; tmp = tmp->below){	1959	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
		1960	{
1957	CLEAR_FLAG(tmp, flag);	1961	CLEAR_FLAG (tmp, flag);
1958	unflag_inv(tmp,flag);	1962	unflag_inv (tmp, flag);
1959	}	1963	}
1960	}	1964	}
1961		1965
1962	/*	1966	/*
1963	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in	1967	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in
1964	* all it's inventory (recursively).	1968	* all it's inventory (recursively).
1965	* If checksums are used, a player will get set_cheat called for	1969	* 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.	1970	* him/her-self and all object carried by a call to this function.
1967	*/	1971	*/
1968		1972	void
1969	void set_cheat(object *op) {	1973	set_cheat (object *op)
		1974	{
1970	SET_FLAG(op, FLAG_WAS_WIZ);	1975	SET_FLAG (op, FLAG_WAS_WIZ);
1971	flag_inv(op, FLAG_WAS_WIZ);	1976	flag_inv (op, FLAG_WAS_WIZ);
1972	}	1977	}
1973		1978
1974	/*	1979	/*
1975	* find_free_spot(object, map, x, y, start, stop) will search for	1980	* 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	1981	* 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	1995	* 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	1996	* 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	1997	* the archetype because that isn't correct if the monster has been
1993	* customized, changed states, etc.	1998	* customized, changed states, etc.
1994	*/	1999	*/
1995		2000	int
1996	int find_free_spot(const object *ob, mapstruct *m,int x,int y,int start,int stop) {	2001	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)
		2002	{
1997	int i,index=0, flag;	2003	int index = 0, flag;
1998	static int altern[SIZEOFFREE];	2004	int altern[SIZEOFFREE];
1999		2005
2000	for(i=start;i<stop;i++) {	2006	for (int i = start; i < stop; i++)
		2007	{
2001	flag = ob_blocked(ob,m,x+freearr_x[i],y+freearr_y[i]);	2008	flag = ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]);
2002	if(!flag)	2009	if (!flag)
2003	altern[index++]=i;	2010	altern [index++] = i;
2004		2011
2005	/* Basically, if we find a wall on a space, we cut down the search size.	2012	/* 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.	2013	* 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 -	2014	* 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	2015	* 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	2016	* spaces in all the other directions, this will reduce the search space
2010	* to only the spaces immediately surrounding the target area, and	2017	* to only the spaces immediately surrounding the target area, and
2011	* won't look 2 spaces south of the target space.	2018	* won't look 2 spaces south of the target space.
2012	*/	2019	*/
2013	else if ((flag & AB_NO_PASS) && maxfree[i]<stop)	2020	else if ((flag & P_NO_PASS) && maxfree[i] < stop)
2014	stop=maxfree[i];	2021	stop = maxfree[i];
2015	}	2022	}
2016	if(!index) return -1;	2023
		2024	if (!index)
		2025	return -1;
		2026
2017	return altern[RANDOM()%index];	2027	return altern[RANDOM () % index];
2018	}	2028	}
2019		2029
2020	/*	2030	/*
2021	* find_first_free_spot(archetype, mapstruct, x, y) works like	2031	* find_first_free_spot(archetype, maptile, x, y) works like
2022	* find_free_spot(), but it will search max number of squares.	2032	* find_free_spot(), but it will search max number of squares.
2023	* But it will return the first available spot, not a random choice.	2033	* 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.	2034	* Changed 0.93.2: Have it return -1 if there is no free spot available.
2025	*/	2035	*/
2026		2036	int
2027	int find_first_free_spot(const object *ob, mapstruct *m,int x,int y) {	2037	find_first_free_spot (const object *ob, maptile *m, int x, int y)
2028	int i;	2038	{
2029	for(i=0;i<SIZEOFFREE;i++) {	2039	for (int i = 0; i < SIZEOFFREE; i++)
2030	if(!ob_blocked(ob,m,x+freearr_x[i],y+freearr_y[i]))	2040	if (!ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]))
2031	return i;	2041	return i;
2032	}	2042
2033	return -1;	2043	return -1;
2034	}	2044	}
2035		2045
2036	/*	2046	/*
2037	* The function permute(arr, begin, end) randomly reorders the array	2047	* The function permute(arr, begin, end) randomly reorders the array
2038	* arr[begin..end-1].	2048	* arr[begin..end-1].
		2049	* now uses a fisher-yates shuffle, old permute was broken
2039	*/	2050	*/
		2051	static void
2040	static void permute(int *arr, int begin, int end)	2052	permute (int *arr, int begin, int end)
2041	{	2053	{
2042	int i, j, tmp, len;	2054	arr += begin;
		2055	end -= begin;
2043		2056
2044	len = end-begin;	2057	while (--end)
2045	for(i = begin; i < end; i++)	2058	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	}	2059	}
2054		2060
2055	/* new function to make monster searching more efficient, and effective!	2061	/* new function to make monster searching more efficient, and effective!
2056	* This basically returns a randomized array (in the passed pointer) of	2062	* 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	2063	* 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	2064	* 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	2065	* 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.	2066	* the 3x3 area will be searched, just not in a predictable order.
2061	*/	2067	*/
		2068	void
2062	void get_search_arr(int *search_arr)	2069	get_search_arr (int *search_arr)
2063	{	2070	{
2064	int i;	2071	int i;
2065		2072
2066	for(i = 0; i < SIZEOFFREE; i++)	2073	for (i = 0; i < SIZEOFFREE; i++)
2067	{
2068	search_arr[i] = i;	2074	search_arr[i] = i;
2069	}
2070		2075
2071	permute(search_arr, 1, SIZEOFFREE1+1);	2076	permute (search_arr, 1, SIZEOFFREE1 + 1);
2072	permute(search_arr, SIZEOFFREE1+1, SIZEOFFREE2+1);	2077	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);
2073	permute(search_arr, SIZEOFFREE2+1, SIZEOFFREE);	2078	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);
2074	}	2079	}
2075		2080
2076	/*	2081	/*
2077	* find_dir(map, x, y, exclude) will search some close squares in the	2082	* find_dir(map, x, y, exclude) will search some close squares in the
2078	* given map at the given coordinates for live objects.	2083	* given map at the given coordinates for live objects.
…		…
2083	* Perhaps incorrectly, but I'm making the assumption that exclude	2088	* 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	2089	* 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	2090	* because we have to know what movement the thing looking to move
2086	* there is capable of.	2091	* there is capable of.
2087	*/	2092	*/
2088		2093	int
2089	int find_dir(mapstruct *m, int x, int y, object *exclude) {	2094	find_dir (maptile *m, int x, int y, object *exclude)
		2095	{
2090	int i,max=SIZEOFFREE, mflags;	2096	int i, max = SIZEOFFREE, mflags;
		2097
2091	sint16 nx, ny;	2098	sint16 nx, ny;
2092	object *tmp;	2099	object *tmp;
2093	mapstruct *mp;	2100	maptile *mp;
		2101
2094	MoveType blocked, move_type;	2102	MoveType blocked, move_type;
2095		2103
2096	if (exclude && exclude->head) {	2104	if (exclude && exclude->head)
		2105	{
2097	exclude = exclude->head;	2106	exclude = exclude->head;
2098	move_type = exclude->move_type;	2107	move_type = exclude->move_type;
2099	} else {	2108	}
		2109	else
		2110	{
2100	/* If we don't have anything, presume it can use all movement types. */	2111	/* If we don't have anything, presume it can use all movement types. */
2101	move_type=MOVE_ALL;	2112	move_type = MOVE_ALL;
		2113	}
		2114
		2115	for (i = 1; i < max; i++)
2102	}	2116	{
2103
2104	for(i=1;i<max;i++) {
2105	mp = m;	2117	mp = m;
2106	nx = x + freearr_x[i];	2118	nx = x + freearr_x[i];
2107	ny = y + freearr_y[i];	2119	ny = y + freearr_y[i];
2108		2120
2109	mflags = get_map_flags(m, &mp, nx, ny, &nx, &ny);	2121	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);
		2122
2110	if (mflags & P_OUT_OF_MAP) {	2123	if (mflags & P_OUT_OF_MAP)
		2124	max = maxfree[i];
		2125	else
		2126	{
		2127	mapspace &ms = mp->at (nx, ny);
		2128
		2129	blocked = ms.move_block;
		2130
		2131	if ((move_type & blocked) == move_type)
2111	max = maxfree[i];	2132	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) {	2133	else if (mflags & P_IS_ALIVE)
2118	for (tmp=GET_MAP_OB(mp,nx,ny); tmp!= NULL; tmp=tmp->above) {	2134	{
		2135	for (tmp = ms.bot; tmp; tmp = tmp->above)
2119	if ((QUERY_FLAG(tmp,FLAG_MONSTER) || tmp->type==PLAYER) &&	2136	if ((tmp->flag [FLAG_MONSTER] || tmp->type == PLAYER)
2120	(tmp != exclude ||(tmp->head && tmp->head != exclude))) {	2137	&& (tmp != exclude || (tmp->head && tmp->head != exclude)))
2121	break;	2138	break;
2122	}	2139
2123	}
2124	if(tmp) {	2140	if (tmp)
2125	return freedir[i];	2141	return freedir[i];
2126	}
2127	}	2142	}
2128	}	2143	}
2129	}	2144	}
		2145
2130	return 0;	2146	return 0;
2131	}	2147	}
2132		2148
2133	/*	2149	/*
2134	* distance(object 1, object 2) will return the square of the	2150	* distance(object 1, object 2) will return the square of the
2135	* distance between the two given objects.	2151	* distance between the two given objects.
2136	*/	2152	*/
2137		2153	int
2138	int distance(const object *ob1, const object *ob2) {	2154	distance (const object *ob1, const object *ob2)
2139	int i;	2155	{
2140	i= (ob1->x - ob2->x)*(ob1->x - ob2->x)+	2156	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	}	2157	}
2144		2158
2145	/*	2159	/*
2146	* find_dir_2(delta-x,delta-y) will return a direction in which	2160	* 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	2161	* an object which has subtracted the x and y coordinates of another
2148	* object, needs to travel toward it.	2162	* object, needs to travel toward it.
2149	*/	2163	*/
2150		2164	int
2151	int find_dir_2(int x, int y) {	2165	find_dir_2 (int x, int y)
		2166	{
2152	int q;	2167	int q;
2153		2168
2154	if(y)	2169	if (y)
2155	q=x*100/y;	2170	q = x * 100 / y;
2156	else if (x)	2171	else if (x)
2157	q= -300*x;	2172	q = -300 * x;
2158	else	2173	else
2159	return 0;	2174	return 0;
2160		2175
2161	if(y>0) {	2176	if (y > 0)
		2177	{
2162	if(q < -242)	2178	if (q < -242)
2163	return 3 ;	2179	return 3;
2164	if (q < -41)	2180	if (q < -41)
2165	return 2 ;	2181	return 2;
2166	if (q < 41)	2182	if (q < 41)
2167	return 1 ;	2183	return 1;
2168	if (q < 242)	2184	if (q < 242)
2169	return 8 ;	2185	return 8;
2170	return 7 ;	2186	return 7;
2171	}	2187	}
2172		2188
2173	if (q < -242)	2189	if (q < -242)
2174	return 7 ;	2190	return 7;
2175	if (q < -41)	2191	if (q < -41)
2176	return 6 ;	2192	return 6;
2177	if (q < 41)	2193	if (q < 41)
2178	return 5 ;	2194	return 5;
2179	if (q < 242)	2195	if (q < 242)
2180	return 4 ;	2196	return 4;
2181		2197
2182	return 3 ;	2198	return 3;
2183	}	2199	}
2184		2200
2185	/*	2201	/*
2186	* absdir(int): Returns a number between 1 and 8, which represent	2202	* absdir(int): Returns a number between 1 and 8, which represent
2187	* the "absolute" direction of a number (it actually takes care of	2203	* the "absolute" direction of a number (it actually takes care of
2188	* "overflow" in previous calculations of a direction).	2204	* "overflow" in previous calculations of a direction).
2189	*/	2205	*/
2190		2206
		2207	int
2191	int absdir(int d) {	2208	absdir (int d)
2192	while(d<1) d+=8;	2209	{
2193	while(d>8) d-=8;	2210	while (d < 1)
		2211	d += 8;
		2212
		2213	while (d > 8)
		2214	d -= 8;
		2215
2194	return d;	2216	return d;
2195	}	2217	}
2196		2218
2197	/*	2219	/*
2198	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is	2220	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is
2199	* between two directions (which are expected to be absolute (see absdir())	2221	* between two directions (which are expected to be absolute (see absdir())
2200	*/	2222	*/
2201		2223
		2224	int
2202	int dirdiff(int dir1, int dir2) {	2225	dirdiff (int dir1, int dir2)
		2226	{
2203	int d;	2227	int d;
		2228
2204	d = abs(dir1 - dir2);	2229	d = abs (dir1 - dir2);
2205	if(d>4)	2230	if (d > 4)
2206	d = 8 - d;	2231	d = 8 - d;
		2232
2207	return d;	2233	return d;
2208	}	2234	}
2209		2235
2210	/* peterm:	2236	/* peterm:
2211	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.	2237	* 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	2240	* 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.	2241	* 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	2242	* Moved from spell_util.c to object.c with the other related direction
2217	* functions.	2243	* functions.
2218	*/	2244	*/
2219
2220	int reduction_dir[SIZEOFFREE][3] = {	2245	int reduction_dir[SIZEOFFREE][3] = {
2221	{0,0,0}, /* 0 */	2246	{0, 0, 0}, /* 0 */
2222	{0,0,0}, /* 1 */	2247	{0, 0, 0}, /* 1 */
2223	{0,0,0}, /* 2 */	2248	{0, 0, 0}, /* 2 */
2224	{0,0,0}, /* 3 */	2249	{0, 0, 0}, /* 3 */
2225	{0,0,0}, /* 4 */	2250	{0, 0, 0}, /* 4 */
2226	{0,0,0}, /* 5 */	2251	{0, 0, 0}, /* 5 */
2227	{0,0,0}, /* 6 */	2252	{0, 0, 0}, /* 6 */
2228	{0,0,0}, /* 7 */	2253	{0, 0, 0}, /* 7 */
2229	{0,0,0}, /* 8 */	2254	{0, 0, 0}, /* 8 */
2230	{8,1,2}, /* 9 */	2255	{8, 1, 2}, /* 9 */
2231	{1,2,-1}, /* 10 */	2256	{1, 2, -1}, /* 10 */
2232	{2,10,12}, /* 11 */	2257	{2, 10, 12}, /* 11 */
2233	{2,3,-1}, /* 12 */	2258	{2, 3, -1}, /* 12 */
2234	{2,3,4}, /* 13 */	2259	{2, 3, 4}, /* 13 */
2235	{3,4,-1}, /* 14 */	2260	{3, 4, -1}, /* 14 */
2236	{4,14,16}, /* 15 */	2261	{4, 14, 16}, /* 15 */
2237	{5,4,-1}, /* 16 */	2262	{5, 4, -1}, /* 16 */
2238	{4,5,6}, /* 17 */	2263	{4, 5, 6}, /* 17 */
2239	{6,5,-1}, /* 18 */	2264	{6, 5, -1}, /* 18 */
2240	{6,20,18}, /* 19 */	2265	{6, 20, 18}, /* 19 */
2241	{7,6,-1}, /* 20 */	2266	{7, 6, -1}, /* 20 */
2242	{6,7,8}, /* 21 */	2267	{6, 7, 8}, /* 21 */
2243	{7,8,-1}, /* 22 */	2268	{7, 8, -1}, /* 22 */
2244	{8,22,24}, /* 23 */	2269	{8, 22, 24}, /* 23 */
2245	{8,1,-1}, /* 24 */	2270	{8, 1, -1}, /* 24 */
2246	{24,9,10}, /* 25 */	2271	{24, 9, 10}, /* 25 */
2247	{9,10,-1}, /* 26 */	2272	{9, 10, -1}, /* 26 */
2248	{10,11,-1}, /* 27 */	2273	{10, 11, -1}, /* 27 */
2249	{27,11,29}, /* 28 */	2274	{27, 11, 29}, /* 28 */
2250	{11,12,-1}, /* 29 */	2275	{11, 12, -1}, /* 29 */
2251	{12,13,-1}, /* 30 */	2276	{12, 13, -1}, /* 30 */
2252	{12,13,14}, /* 31 */	2277	{12, 13, 14}, /* 31 */
2253	{13,14,-1}, /* 32 */	2278	{13, 14, -1}, /* 32 */
2254	{14,15,-1}, /* 33 */	2279	{14, 15, -1}, /* 33 */
2255	{33,15,35}, /* 34 */	2280	{33, 15, 35}, /* 34 */
2256	{16,15,-1}, /* 35 */	2281	{16, 15, -1}, /* 35 */
2257	{17,16,-1}, /* 36 */	2282	{17, 16, -1}, /* 36 */
2258	{18,17,16}, /* 37 */	2283	{18, 17, 16}, /* 37 */
2259	{18,17,-1}, /* 38 */	2284	{18, 17, -1}, /* 38 */
2260	{18,19,-1}, /* 39 */	2285	{18, 19, -1}, /* 39 */
2261	{41,19,39}, /* 40 */	2286	{41, 19, 39}, /* 40 */
2262	{19,20,-1}, /* 41 */	2287	{19, 20, -1}, /* 41 */
2263	{20,21,-1}, /* 42 */	2288	{20, 21, -1}, /* 42 */
2264	{20,21,22}, /* 43 */	2289	{20, 21, 22}, /* 43 */
2265	{21,22,-1}, /* 44 */	2290	{21, 22, -1}, /* 44 */
2266	{23,22,-1}, /* 45 */	2291	{23, 22, -1}, /* 45 */
2267	{45,47,23}, /* 46 */	2292	{45, 47, 23}, /* 46 */
2268	{23,24,-1}, /* 47 */	2293	{23, 24, -1}, /* 47 */
2269	{24,9,-1}}; /* 48 */	2294	{24, 9, -1}
		2295	}; /* 48 */
2270		2296
2271	/* Recursive routine to step back and see if we can	2297	/* Recursive routine to step back and see if we can
2272	* find a path to that monster that we found. If not,	2298	* find a path to that monster that we found. If not,
2273	* we don't bother going toward it. Returns 1 if we	2299	* we don't bother going toward it. Returns 1 if we
2274	* can see a direct way to get it	2300	* can see a direct way to get it
2275	* Modified to be map tile aware -.MSW	2301	* Modified to be map tile aware -.MSW
2276	*/	2302	*/
2277		2303	int
2278
2279	int can_see_monsterP(mapstruct *m, int x, int y,int dir) {	2304	can_see_monsterP (maptile *m, int x, int y, int dir)
		2305	{
2280	sint16 dx, dy;	2306	sint16 dx, dy;
2281	int mflags;	2307	int mflags;
2282		2308
		2309	if (dir < 0)
2283	if(dir<0) return 0; /* exit condition: invalid direction */	2310	return 0; /* exit condition: invalid direction */
2284		2311
2285	dx = x + freearr_x[dir];	2312	dx = x + freearr_x[dir];
2286	dy = y + freearr_y[dir];	2313	dy = y + freearr_y[dir];
2287		2314
2288	mflags = get_map_flags(m, &m, dx, dy, &dx, &dy);	2315	mflags = get_map_flags (m, &m, dx, dy, &dx, &dy);
2289		2316
2290	/* This functional arguably was incorrect before - it was	2317	/* This functional arguably was incorrect before - it was
2291	* checking for P_WALL - that was basically seeing if	2318	* checking for P_WALL - that was basically seeing if
2292	* we could move to the monster - this is being more	2319	* we could move to the monster - this is being more
2293	* literal on if we can see it. To know if we can actually	2320	* 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	2321	* move to the monster, we'd need the monster passed in or
2295	* at least its move type.	2322	* at least its move type.
2296	*/	2323	*/
2297	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW)) return 0;	2324	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW))
		2325	return 0;
2298		2326
2299	/* yes, can see. */	2327	/* yes, can see. */
2300	if(dir < 9) return 1;	2328	if (dir < 9)
		2329	return 1;
		2330
2301	return can_see_monsterP(m, x, y, reduction_dir[dir][0]) |	2331	return can_see_monsterP (m, x, y, reduction_dir[dir][0])
2302	can_see_monsterP(m,x,y, reduction_dir[dir][1]) |	2332	| can_see_monsterP (m, x, y, reduction_dir[dir][1])
2303	can_see_monsterP(m,x,y, reduction_dir[dir][2]);	2333	| can_see_monsterP (m, x, y, reduction_dir[dir][2]);
2304	}	2334	}
2305		2335
2306
2307
2308	/*	2336	/*
2309	* can_pick(picker, item): finds out if an object is possible to be	2337	* 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	2338	* picked up by the picker. Returnes 1 if it can be
2311	* picked up, otherwise 0.	2339	* picked up, otherwise 0.
2312	*	2340	*
…		…
2314	* core dumps if they do.	2342	* core dumps if they do.
2315	*	2343	*
2316	* Add a check so we can't pick up invisible objects (0.93.8)	2344	* Add a check so we can't pick up invisible objects (0.93.8)
2317	*/	2345	*/
2318		2346
		2347	int
2319	int can_pick(const object *who, const object *item) {	2348	can_pick (const object *who, const object *item)
		2349	{
2320	return /*QUERY_FLAG(who,FLAG_WIZ)||*/	2350	return /*QUERY_FLAG(who,FLAG_WIZ)|| */
2321	(item->weight>0&&!QUERY_FLAG(item,FLAG_NO_PICK)&&	2351	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&
2322	!QUERY_FLAG(item,FLAG_ALIVE)&&!item->invisible &&	2352	!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	}	2353	}
2325
2326		2354
2327	/*	2355	/*
2328	* create clone from object to another	2356	* create clone from object to another
2329	*/	2357	*/
		2358	object *
2330	object *object_create_clone (object *asrc) {	2359	object_create_clone (object *asrc)
		2360	{
2331	object *dst = NULL,*tmp,*src,*part,*prev, *item;	2361	object *dst = 0, *tmp, *src, *part, *prev, *item;
2332		2362
2333	if(!asrc) return NULL;	2363	if (!asrc)
		2364	return 0;
		2365
2334	src = asrc;	2366	src = asrc;
2335	if(src->head)	2367	if (src->head)
2336	src = src->head;	2368	src = src->head;
2337		2369
2338	prev = NULL;	2370	prev = 0;
2339	for(part = src; part; part = part->more) {	2371	for (part = src; part; part = part->more)
2340	tmp = get_object();	2372	{
2341	copy_object(part,tmp);	2373	tmp = part->clone ();
2342	tmp->x -= src->x;	2374	tmp->x -= src->x;
2343	tmp->y -= src->y;	2375	tmp->y -= src->y;
		2376
2344	if(!part->head) {	2377	if (!part->head)
		2378	{
2345	dst = tmp;	2379	dst = tmp;
2346	tmp->head = NULL;	2380	tmp->head = 0;
		2381	}
2347	} else {	2382	else
2348	tmp->head = dst;	2383	tmp->head = dst;
2349	}	2384
2350	tmp->more = NULL;	2385	tmp->more = 0;
		2386
2351	if(prev)	2387	if (prev)
2352	prev->more = tmp;	2388	prev->more = tmp;
		2389
2353	prev = tmp;	2390	prev = tmp;
2354	}	2391	}
2355	/*** copy inventory ***/	2392
2356	for(item = src->inv; item; item = item->below) {	2393	for (item = src->inv; item; item = item->below)
2357	(void) insert_ob_in_ob(object_create_clone(item),dst);	2394	insert_ob_in_ob (object_create_clone (item), dst);
2358	}
2359		2395
2360	return dst;	2396	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	}	2397	}
2370		2398
2371	/* GROS - Creates an object using a string representing its content. */	2399	/* 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 */	2400	/* 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, */	2401	/* 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. */	2402	/* 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. */	2403	/* Remember not to use load_object_str in a time-critical situation. */
2376	/* Also remember that multiparts objects are not supported for now. */	2404	/* Also remember that multiparts objects are not supported for now. */
2377		2405	object *
2378	object* load_object_str(const char *obstr)	2406	load_object_str (const char *obstr)
2379	{	2407	{
2380	object *op;	2408	object *op;
2381	char filename[MAX_BUF];	2409	char filename[MAX_BUF];
		2410
2382	sprintf(filename,"%s/cfloadobstr2044",settings.tmpdir);	2411	sprintf (filename, "%s/cfloadobstr2044", settings.tmpdir);
2383		2412
2384	FILE *tempfile=fopen(filename,"w");	2413	FILE *tempfile = fopen (filename, "w");
		2414
2385	if (tempfile == NULL)	2415	if (tempfile == NULL)
2386	{	2416	{
2387	LOG(llevError,"Error - Unable to access load object temp file\n");	2417	LOG (llevError, "Error - Unable to access load object temp file\n");
2388	return NULL;	2418	return NULL;
2389	};	2419	}
		2420
2390	fprintf(tempfile,obstr);	2421	fprintf (tempfile, obstr);
2391	fclose(tempfile);	2422	fclose (tempfile);
2392		2423
2393	op=get_object();	2424	op = object::create ();
2394		2425
2395	object_thawer thawer (filename);	2426	object_thawer thawer (filename);
2396		2427
2397	if (thawer)	2428	if (thawer)
2398	load_object(thawer,op,0);	2429	load_object (thawer, op, 0);
2399		2430
2400	LOG(llevDebug," load str completed, object=%s\n", &op->name);	2431	LOG (llevDebug, " load str completed, object=%s\n", &op->name);
2401	CLEAR_FLAG(op,FLAG_REMOVED);	2432	CLEAR_FLAG (op, FLAG_REMOVED);
2402		2433
2403	return op;	2434	return op;
2404	}	2435	}
2405		2436
2406	/* This returns the first object in who's inventory that	2437	/* This returns the first object in who's inventory that
2407	* has the same type and subtype match.	2438	* has the same type and subtype match.
2408	* returns NULL if no match.	2439	* returns NULL if no match.
2409	*/	2440	*/
		2441	object *
2410	object *find_obj_by_type_subtype(const object *who, int type, int subtype)	2442	find_obj_by_type_subtype (const object *who, int type, int subtype)
2411	{	2443	{
2412	object *tmp;
2413
2414	for (tmp=who->inv; tmp; tmp=tmp->below)	2444	for (object *tmp = who->inv; tmp; tmp = tmp->below)
2415	if (tmp->type == type && tmp->subtype == subtype) return tmp;	2445	if (tmp->type == type && tmp->subtype == subtype)
		2446	return tmp;
2416		2447
2417	return NULL;	2448	return 0;
2418	}	2449	}
2419		2450
2420	/* If ob has a field named key, return the link from the list,	2451	/* If ob has a field named key, return the link from the list,
2421	* otherwise return NULL.	2452	* otherwise return NULL.
2422	*	2453	*
2423	* key must be a passed in shared string - otherwise, this won't	2454	* key must be a passed in shared string - otherwise, this won't
2424	* do the desired thing.	2455	* do the desired thing.
2425	*/	2456	*/
		2457	key_value *
2426	key_value * get_ob_key_link(const object * ob, const char * key) {	2458	get_ob_key_link (const object *ob, const char *key)
2427	key_value * link;	2459	{
2428
2429	for (link = ob->key_values; link != NULL; link = link->next) {	2460	for (key_value *link = ob->key_values; link; link = link->next)
2430	if (link->key == key) {	2461	if (link->key == key)
2431	return link;	2462	return link;
2432	}	2463
2433	}	2464	return 0;
2434		2465	}
2435	return NULL;
2436	}
2437		2466
2438	/*	2467	/*
2439	* Returns the value of op has an extra_field for key, or NULL.	2468	* Returns the value of op has an extra_field for key, or NULL.
2440	*	2469	*
2441	* The argument doesn't need to be a shared string.	2470	* The argument doesn't need to be a shared string.
2442	*	2471	*
2443	* The returned string is shared.	2472	* The returned string is shared.
2444	*/	2473	*/
		2474	const char *
2445	const char * get_ob_key_value(const object * op, const char * const key) {	2475	get_ob_key_value (const object *op, const char *const key)
		2476	{
2446	key_value * link;	2477	key_value *link;
2447	const char * canonical_key;	2478	shstr_cmp canonical_key (key);
		2479
		2480	if (!canonical_key)
2448		2481	{
2449	canonical_key = shstr::find (key);
2450
2451	if (canonical_key == NULL) {
2452	/* 1. There being a field named key on any object	2482	/* 1. There being a field named key on any object
2453	* implies there'd be a shared string to find.	2483	* implies there'd be a shared string to find.
2454	* 2. Since there isn't, no object has this field.	2484	* 2. Since there isn't, no object has this field.
2455	* 3. Therefore, *this* object doesn't have this field.	2485	* 3. Therefore, *this* object doesn't have this field.
2456	*/	2486	*/
2457	return NULL;	2487	return 0;
2458	}	2488	}
2459		2489
2460	/* This is copied from get_ob_key_link() above -	2490	/* This is copied from get_ob_key_link() above -
2461	* only 4 lines, and saves the function call overhead.	2491	* only 4 lines, and saves the function call overhead.
2462	*/	2492	*/
2463	for (link = op->key_values; link != NULL; link = link->next) {	2493	for (link = op->key_values; link; link = link->next)
2464	if (link->key == canonical_key) {	2494	if (link->key == canonical_key)
2465	return link->value;	2495	return link->value;
2466	}	2496
2467	}	2497	return 0;
2468	return NULL;
2469	}	2498	}
2470		2499
2471		2500
2472	/*	2501	/*
2473	* Updates the canonical_key in op to value.	2502	* 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	2506	* Unless add_key is TRUE, it won't add fields, only change the value of existing
2478	* keys.	2507	* keys.
2479	*	2508	*
2480	* Returns TRUE on success.	2509	* Returns TRUE on success.
2481	*/	2510	*/
		2511	int
2482	int set_ob_key_value_s(object * op, const shstr &canonical_key, const char * value, int add_key) {	2512	set_ob_key_value_s (object *op, const shstr & canonical_key, const char *value, int add_key)
		2513	{
2483	key_value * field = NULL, *last=NULL;	2514	key_value *field = NULL, *last = NULL;
2484		2515
2485	for (field=op->key_values; field != NULL; field=field->next) {	2516	for (field = op->key_values; field != NULL; field = field->next)
		2517	{
2486	if (field->key != canonical_key) {	2518	if (field->key != canonical_key)
		2519	{
2487	last = field;	2520	last = field;
2488	continue;	2521	continue;
2489	}	2522	}
2490		2523
2491	if (value)	2524	if (value)
2492	field->value = value;	2525	field->value = value;
2493	else {	2526	else
		2527	{
2494	/* Basically, if the archetype has this key set,	2528	/* Basically, if the archetype has this key set,
2495	* we need to store the null value so when we save	2529	* we need to store the null value so when we save
2496	* it, we save the empty value so that when we load,	2530	* it, we save the empty value so that when we load,
2497	* we get this value back again.	2531	* we get this value back again.
2498	*/	2532	*/
2499	if (get_ob_key_link (&op->arch->clone, canonical_key))	2533	if (get_ob_key_link (&op->arch->clone, canonical_key))
2500	field->value = 0;	2534	field->value = 0;
		2535	else
		2536	{
		2537	if (last)
		2538	last->next = field->next;
2501	else	2539	else
2502	{
2503	if (last) last->next = field->next;
2504	else op->key_values = field->next;	2540	op->key_values = field->next;
2505		2541
2506	delete field;	2542	delete field;
2507	}	2543	}
2508	}	2544	}
2509	return TRUE;	2545	return TRUE;
2510	}	2546	}
2511	/* IF we get here, key doesn't exist */	2547	/* IF we get here, key doesn't exist */
2512		2548
2513	/* No field, we'll have to add it. */	2549	/* No field, we'll have to add it. */
2514		2550
2515	if (!add_key) {	2551	if (!add_key)
2516	return FALSE;	2552	return FALSE;
2517	}	2553
2518	/* There isn't any good reason to store a null	2554	/* There isn't any good reason to store a null
2519	* value in the key/value list. If the archetype has	2555	* value in the key/value list. If the archetype has
2520	* this key, then we should also have it, so shouldn't	2556	* this key, then we should also have it, so shouldn't
2521	* be here. If user wants to store empty strings,	2557	* be here. If user wants to store empty strings,
2522	* should pass in ""	2558	* should pass in ""
2523	*/	2559	*/
2524	if (value == NULL) return TRUE;	2560	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;	2561	return TRUE;
		2562
		2563	field = new key_value;
		2564
		2565	field->key = canonical_key;
		2566	field->value = value;
		2567	/* Usual prepend-addition. */
		2568	field->next = op->key_values;
		2569	op->key_values = field;
		2570
		2571	return TRUE;
2535	}	2572	}
2536		2573
2537	/*	2574	/*
2538	* Updates the key in op to value.	2575	* Updates the key in op to value.
2539	*	2576	*
…		…
2541	* and not add new ones.	2578	* and not add new ones.
2542	* In general, should be little reason FALSE is ever passed in for add_key	2579	* In general, should be little reason FALSE is ever passed in for add_key
2543	*	2580	*
2544	* Returns TRUE on success.	2581	* Returns TRUE on success.
2545	*/	2582	*/
		2583	int
2546	int set_ob_key_value(object * op, const char *key, const char * value, int add_key)	2584	set_ob_key_value (object *op, const char *key, const char *value, int add_key)
2547	{	2585	{
2548	shstr key_ (key);	2586	shstr key_ (key);
		2587
2549	return set_ob_key_value_s (op, key_, value, add_key);	2588	return set_ob_key_value_s (op, key_, value, add_key);
2550	}	2589	}
		2590
		2591	object::depth_iterator::depth_iterator (object *container)
		2592	: iterator_base (container)
		2593	{
		2594	while (item->inv)
		2595	item = item->inv;
		2596	}
		2597
		2598	void
		2599	object::depth_iterator::next ()
		2600	{
		2601	if (item->below)
		2602	{
		2603	item = item->below;
		2604
		2605	while (item->inv)
		2606	item = item->inv;
		2607	}
		2608	else
		2609	item = item->env;
		2610	}
		2611
		2612
		2613	const char *
		2614	object::flag_desc (char *desc, int len) const
		2615	{
		2616	char *p = desc;
		2617	bool first = true;
		2618
		2619	*p = 0;
		2620
		2621	for (int i = 0; i < NUM_FLAGS; i++)
		2622	{
		2623	if (len <= 10) // magic constant!
		2624	{
		2625	snprintf (p, len, ",...");
		2626	break;
		2627	}
		2628
		2629	if (flag [i])
		2630	{
		2631	int cnt = snprintf (p, len, "%s%d", first ? "" : ",", i);
		2632	len -= cnt;
		2633	p += cnt;
		2634	first = false;
		2635	}
		2636	}
		2637
		2638	return desc;
		2639	}
		2640
		2641	// return a suitable string describing an object in enough detail to find it
		2642	const char *
		2643	object::debug_desc (char *info) const
		2644	{
		2645	char flagdesc[512];
		2646	char info2[256 * 4];
		2647	char *p = info;
		2648
		2649	p += snprintf (p, 512, "{cnt:%d,uuid:<1,%" PRIx64 ">,name:\"%s%s%s\",flags:[%s],type:%d}",
		2650	count, uuid.seq,
		2651	&name,
		2652	title ? "\",title:" : "",
		2653	title ? (const char *)title : "",
		2654	flag_desc (flagdesc, 512), type);
		2655
		2656	if (env)
		2657	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));
		2658
		2659	if (map)
		2660	p += snprintf (p, 256, "(on %s@%d+%d)", &map->path, x, y);
		2661
		2662	return info;
		2663	}
		2664
		2665	const char *
		2666	object::debug_desc () const
		2667	{
		2668	static char info[256 * 4];
		2669	return debug_desc (info);
		2670	}
		2671

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