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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 1.73 by root, Wed Dec 20 01:19:11 2006 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 != NULL; wants_field = wants_field->next)
		147	{
71	key_value * has_field;	148	key_value *has_field;
72		149
73	/* Look for a field in has with the same key. */	150	/* Look for a field in has with the same key. */
74	has_field = get_ob_key_link(has, wants_field->key);	151	has_field = get_ob_key_link (has, wants_field->key);
		152
		153	if (has_field == NULL)
75		154	{
76	if (has_field == NULL) {
77	/* No field with that name. */	155	/* No field with that name. */
78	return FALSE;	156	return FALSE;
79	}
80		157	}
		158
81	/* Found the matching field. */	159	/* Found the matching field. */
82	if (has_field->value != wants_field->value) {	160	if (has_field->value != wants_field->value)
		161	{
83	/* Values don't match, so this half of the comparison is false. */	162	/* Values don't match, so this half of the comparison is false. */
84	return FALSE;	163	return FALSE;
85	}	164	}
86		165
87	/* If we get here, we found a match. Now for the next field in wants. */	166	/* If we get here, we found a match. Now for the next field in wants. */
88	}
89		167	}
		168
90	/* If we get here, every field in wants has a matching field in has. */	169	/* If we get here, every field in wants has a matching field in has. */
91	return TRUE;	170	return TRUE;
92	}	171	}
93		172
94	/* Returns TRUE if ob1 has the same key_values as ob2. */	173	/* Returns TRUE if ob1 has the same key_values as ob2. */
		174	static int
95	static int compare_ob_value_lists(const object * ob1, const object * ob2) {	175	compare_ob_value_lists (const object *ob1, const object *ob2)
		176	{
96	/* However, there may be fields in has which aren't partnered in wants,	177	/* However, there may be fields in has which aren't partnered in wants,
97	* so we need to run the comparison *twice*. :(	178	* so we need to run the comparison *twice*. :(
98	*/	179	*/
99	return compare_ob_value_lists_one(ob1, ob2) && compare_ob_value_lists_one(ob2, ob1);	180	return compare_ob_value_lists_one (ob1, ob2) && compare_ob_value_lists_one (ob2, ob1);
100	}	181	}
101		182
102	/* Function examines the 2 objects given to it, and returns true if	183	/* Function examines the 2 objects given to it, and returns true if
103	* they can be merged together.	184	* they can be merged together.
104	*	185	*
105	* Note that this function appears a lot longer than the macro it	186	* Note that this function appears a lot longer than the macro it
106	* replaces - this is mostly for clarity - a decent compiler should hopefully	187	* replaces - this is mostly for clarity - a decent compiler should hopefully
107	* reduce this to the same efficiency.	188	* reduce this to the same efficiency.
108	*	189	*
109	* Check nrof variable *before* calling CAN_MERGE()	190	* Check nrof variable *before* calling can_merge()
110	*	191	*
111	* Improvements made with merge: Better checking on potion, and also	192	* Improvements made with merge: Better checking on potion, and also
112	* check weight	193	* check weight
113	*/	194	*/
114		195
115	bool
116	object::can_merge (object *ob1, object *ob2)	196	bool object::can_merge_slow (object *ob1, object *ob2)
117	{	197	{
118	/* A couple quicksanity checks */	198	/* A couple quicksanity checks */
119	if ((ob1 == ob2) || (ob1->type != ob2->type))	199	if (ob1 == ob2
		200	|| ob1->type != ob2->type
		201	|| ob1->speed != ob2->speed
		202	|| ob1->value != ob2->value
		203	|| ob1->name != ob2->name)
120	return 0;	204	return 0;
121		205
122	if (ob1->speed != ob2->speed)	206	//TODO: this ain't working well, use nicer and correct overflow check
123	return 0;
124
125	/* Do not merge objects if nrof would overflow. We use 1UL<<31 since that	207	/* Do not merge objects if nrof would overflow. We use 1UL<<31 since that
126	* value could not be stored in a sint32 (which unfortunately sometimes is	208	* value could not be stored in a sint32 (which unfortunately sometimes is
127	* used to store nrof).	209	* used to store nrof).
128	*/	210	*/
129	if (ob1->nrof + ob2->nrof >= 1UL << 31)	211	if (ob1->nrof + ob2->nrof >= 1UL << 31)
…		…
139	SET_FLAG (ob1, FLAG_BEEN_APPLIED);	221	SET_FLAG (ob1, FLAG_BEEN_APPLIED);
140		222
141	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))	223	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))
142	SET_FLAG (ob2, FLAG_BEEN_APPLIED);	224	SET_FLAG (ob2, FLAG_BEEN_APPLIED);
143		225
144		226	if ((ob1->flags ^ ob2->flags).reset (FLAG_INV_LOCKED).reset (FLAG_CLIENT_SENT).any ()
145	/* the 0x400000 on flags2 is FLAG_INV_LOCK. I don't think something	227	|| 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) ||	228	|| ob1->name != ob2->name
155	(ob1->title != ob2->title) ||	229	|| ob1->title != ob2->title
156	(ob1->msg != ob2->msg) ||	230	|| ob1->msg != ob2->msg
157	(ob1->weight != ob2->weight) ||	231	|| ob1->weight != ob2->weight
158	(memcmp (&ob1->resist, &ob2->resist, sizeof (ob1->resist)) != 0) ||	232	|| memcmp (&ob1->resist, &ob2->resist, sizeof (ob1->resist))
159	(memcmp (&ob1->stats, &ob2->stats, sizeof (ob1->stats)) != 0) ||	233	|| memcmp (&ob1->stats , &ob2->stats , sizeof (ob1->stats) )
160	(ob1->attacktype != ob2->attacktype) ||	234	|| ob1->attacktype != ob2->attacktype
161	(ob1->magic != ob2->magic) ||	235	|| ob1->magic != ob2->magic
162	(ob1->slaying != ob2->slaying) ||	236	|| ob1->slaying != ob2->slaying
163	(ob1->skill != ob2->skill) ||	237	|| ob1->skill != ob2->skill
164	(ob1->value != ob2->value) ||	238	|| ob1->value != ob2->value
165	(ob1->animation_id != ob2->animation_id) ||	239	|| ob1->animation_id != ob2->animation_id
166	(ob1->client_type != ob2->client_type) ||	240	|| ob1->client_type != ob2->client_type
167	(ob1->materialname != ob2->materialname) ||	241	|| ob1->materialname != ob2->materialname
168	(ob1->lore != ob2->lore) ||	242	|| ob1->lore != ob2->lore
169	(ob1->subtype != ob2->subtype) ||	243	|| ob1->subtype != ob2->subtype
170	(ob1->move_type != ob2->move_type) ||	244	|| ob1->move_type != ob2->move_type
171	(ob1->move_block != ob2->move_block) ||	245	|| ob1->move_block != ob2->move_block
172	(ob1->move_allow != ob2->move_allow) ||	246	|| ob1->move_allow != ob2->move_allow
173	(ob1->move_on != ob2->move_on) ||	247	|| ob1->move_on != ob2->move_on
174	(ob1->move_off != ob2->move_off) ||	248	|| ob1->move_off != ob2->move_off
175	(ob1->move_slow != ob2->move_slow) ||	249	|| ob1->move_slow != ob2->move_slow
176	(ob1->move_slow_penalty != ob2->move_slow_penalty))	250	|| ob1->move_slow_penalty != ob2->move_slow_penalty)
177	return 0;	251	return 0;
178		252
179	/* This is really a spellbook check - really, we should	253	/* This is really a spellbook check - really, we should
180	* check all objects in the inventory.	254	* check all objects in the inventory.
181	*/	255	*/
182	if (ob1->inv || ob2->inv)	256	if (ob1->inv || ob2->inv)
183	{	257	{
184	/* if one object has inventory but the other doesn't, not equiv */	258	/* if one object has inventory but the other doesn't, not equiv */
185	if ((ob1->inv && !ob2->inv) || (ob2->inv && !ob1->inv))	259	if ((ob1->inv && !ob2->inv) || (ob2->inv && !ob1->inv))
186	return 0;	260	return 0;
187		261
188	/* Now check to see if the two inventory objects could merge */	262	/* Now check to see if the two inventory objects could merge */
189	if (!CAN_MERGE (ob1->inv, ob2->inv))	263	if (!object::can_merge (ob1->inv, ob2->inv))
190	return 0;	264	return 0;
191		265
192	/* inventory ok - still need to check rest of this object to see	266	/* inventory ok - still need to check rest of this object to see
193	* if it is valid.	267	* if it is valid.
194	*/	268	*/
195	}	269	}
…		…
203		277
204	/* Note sure why the following is the case - either the object has to	278	/* 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	279	* be animated or have a very low speed. Is this an attempted monster
206	* check?	280	* check?
207	*/	281	*/
208	if (!QUERY_FLAG (ob1, FLAG_ANIMATE)	282	if (!QUERY_FLAG (ob1, FLAG_ANIMATE) && FABS ((ob1)->speed) > MIN_ACTIVE_SPEED)
209	&& FABS ((ob1)->speed) > MIN_ACTIVE_SPEED)
210	return 0;	283	return 0;
211		284
212	switch (ob1->type)	285	switch (ob1->type)
213	{	286	{
214	case SCROLL:	287	case SCROLL:
215	if (ob1->level != ob2->level)	288	if (ob1->level != ob2->level)
216	return 0;	289	return 0;
217	break;	290	break;
218	}	291	}
219		292
220	if (ob1->key_values != NULL || ob2->key_values != NULL)	293	if (ob1->key_values != NULL || ob2->key_values != NULL)
221	{	294	{
222	/* At least one of these has key_values. */	295	/* At least one of these has key_values. */
223	if ((ob1->key_values == NULL) != (ob2->key_values == NULL))	296	if ((ob1->key_values == NULL) != (ob2->key_values == NULL))
224	/* One has fields, but the other one doesn't. */	297	/* One has fields, but the other one doesn't. */
225	return 0;	298	return 0;
226	else if (!compare_ob_value_lists (ob1, ob2))	299	else if (!compare_ob_value_lists (ob1, ob2))
227	return 0;	300	return 0;
228	}	301	}
229		302
230	//TODO: generate an event or call into perl for additional checks	303	//TODO: generate an event or call into perl for additional checks
231	if (ob1->self || ob2->self)	304	if (ob1->self || ob2->self)
232	{	305	{
233	ob1->optimise ();	306	ob1->optimise ();
234	ob2->optimise ();	307	ob2->optimise ();
235		308
236	if (ob1->self || ob2->self)	309	if (ob1->self || ob2->self)
237	return 0;	310	return 0;
238	}	311	}
239		312
240	/* Everything passes, must be OK. */	313	/* Everything passes, must be OK. */
241	return 1;	314	return 1;
242	}	315	}
		316
243	/*	317	/*
244	* sum_weight() is a recursive function which calculates the weight	318	* sum_weight() is a recursive function which calculates the weight
245	* an object is carrying. It goes through in figures out how much	319	* an object is carrying. It goes through in figures out how much
246	* containers are carrying, and sums it up.	320	* containers are carrying, and sums it up.
247	*/	321	*/
248	signed long sum_weight(object *op) {	322	long
		323	sum_weight (object *op)
		324	{
249	signed long sum;	325	long sum;
250	object *inv;	326	object *inv;
		327
251	for(sum = 0, inv = op->inv; inv != NULL; inv = inv->below) {	328	for (sum = 0, inv = op->inv; inv != NULL; inv = inv->below)
		329	{
252	if (inv->inv)	330	if (inv->inv)
253	sum_weight(inv);	331	sum_weight (inv);
254	sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1);	332	sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1);
255	}	333	}
		334
256	if (op->type == CONTAINER && op->stats.Str)	335	if (op->type == CONTAINER && op->stats.Str)
257	sum = (sum * (100 - op->stats.Str))/100;	336	sum = (sum * (100 - op->stats.Str)) / 100;
		337
258	if(op->carrying != sum)	338	if (op->carrying != sum)
259	op->carrying = sum;	339	op->carrying = sum;
		340
260	return sum;	341	return sum;
261	}	342	}
262		343
263	/**	344	/**
264	* Return the outermost environment object for a given object.	345	* Return the outermost environment object for a given object.
265	*/	346	*/
266		347
		348	object *
267	object *object_get_env_recursive (object *op) {	349	object_get_env_recursive (object *op)
		350	{
268	while (op->env != NULL)	351	while (op->env != NULL)
269	op = op->env;	352	op = op->env;
270	return op;	353	return op;
271	}	354	}
272		355
273	/*	356	/*
274	* Eneq(@csd.uu.se): Since we can have items buried in a character we need	357	* 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	358	* a better check. We basically keeping traversing up until we can't
276	* or find a player.	359	* or find a player.
277	*/	360	*/
278		361
		362	object *
279	object *is_player_inv (object *op) {	363	is_player_inv (object *op)
		364	{
280	for (;op!=NULL&&op->type!=PLAYER; op=op->env)	365	for (; op != NULL && op->type != PLAYER; op = op->env)
281	if (op->env==op)	366	if (op->env == op)
282	op->env = NULL;	367	op->env = NULL;
283	return op;	368	return op;
284	}	369	}
285		370
286	/*	371	/*
287	* Used by: Crossedit: dump. Server DM commands: dumpbelow, dump.	372	* Used by: Crossedit: dump. Server DM commands: dumpbelow, dump.
288	* Some error messages.	373	* Some error messages.
289	* The result of the dump is stored in the static global errmsg array.	374	* The result of the dump is stored in the static global errmsg array.
290	*/	375	*/
291		376
292	void dump_object2(object *op) {	377	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) {	378	dump_object (object *op)
339	if(op==NULL) {	379	{
340	strcpy(errmsg,"[NULL pointer]");	380	if (!op)
341	return;	381	return strdup ("[NULLOBJ]");
342	}
343	errmsg[0]='\0';
344	dump_object2(op);
345	}
346		382
347	void dump_all_objects(void) {	383	object_freezer freezer;
348	object *op;	384	save_object (freezer, op, 3);
349	for(op=objects;op!=NULL;op=op->next) {	385	return freezer.as_string ();
350	dump_object(op);
351	fprintf(logfile, "Object %d\n:%s\n", op->count, errmsg);
352	}
353	}	386	}
354		387
355	/*	388	/*
356	* get_nearest_part(multi-object, object 2) returns the part of the	389	* get_nearest_part(multi-object, object 2) returns the part of the
357	* multi-object 1 which is closest to the second object.	390	* multi-object 1 which is closest to the second object.
358	* If it's not a multi-object, it is returned.	391	* If it's not a multi-object, it is returned.
359	*/	392	*/
360		393
		394	object *
361	object *get_nearest_part(object *op, const object *pl) {	395	get_nearest_part (object *op, const object *pl)
		396	{
362	object *tmp,*closest;	397	object *tmp, *closest;
363	int last_dist,i;	398	int last_dist, i;
		399
364	if(op->more==NULL)	400	if (op->more == NULL)
365	return op;	401	return op;
366	for(last_dist=distance(op,pl),closest=op,tmp=op->more;tmp!=NULL;tmp=tmp->more)	402	for (last_dist = distance (op, pl), closest = op, tmp = op->more; tmp != NULL; tmp = tmp->more)
367	if((i=distance(tmp,pl))<last_dist)	403	if ((i = distance (tmp, pl)) < last_dist)
368	closest=tmp,last_dist=i;	404	closest = tmp, last_dist = i;
369	return closest;	405	return closest;
370	}	406	}
371		407
372	/*	408	/*
373	* Returns the object which has the count-variable equal to the argument.	409	* Returns the object which has the count-variable equal to the argument.
374	*/	410	*/
375		411
		412	object *
376	object *find_object(tag_t i) {	413	find_object (tag_t i)
377	object *op;	414	{
378	for(op=objects;op!=NULL;op=op->next)	415	for (object *op = object::first; op; op = op->next)
379	if(op->count==i)	416	if (op->count == i)
380	break;	417	return op;
		418
381	return op;	419	return 0;
382	}	420	}
383		421
384	/*	422	/*
385	* Returns the first object which has a name equal to the argument.	423	* Returns the first object which has a name equal to the argument.
386	* Used only by the patch command, but not all that useful.	424	* Used only by the patch command, but not all that useful.
387	* Enables features like "patch <name-of-other-player> food 999"	425	* Enables features like "patch <name-of-other-player> food 999"
388	*/	426	*/
389		427
		428	object *
390	object *find_object_name(const char *str) {	429	find_object_name (const char *str)
391	const char *name = shstr::find (str);	430	{
		431	shstr_cmp str_ (str);
392	object *op;	432	object *op;
		433
393	for(op=objects;op!=NULL;op=op->next)	434	for (op = object::first; op != NULL; op = op->next)
394	if(&op->name == name)	435	if (op->name == str_)
395	break;	436	break;
396		437
397	return op;	438	return op;
398	}	439	}
399		440
		441	void
400	void free_all_object_data ()	442	free_all_object_data ()
401	{	443	{
402	LOG (llevDebug, "%d allocated objects\n", nrofallocobjects);	444	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	}	445	}
439		446
440	/*	447	/*
441	* Sets the owner and sets the skill and exp pointers to owner's current	448	* Sets the owner and sets the skill and exp pointers to owner's current
442	* skill and experience objects.	449	* skill and experience objects.
443	*/	450	*/
444	void set_owner (object *op, object *owner)	451	void
		452	object::set_owner (object *owner)
445	{	453	{
446	if(owner==NULL||op==NULL)	454	if (!owner)
447	return;	455	return;
448		456
449	/* next line added to allow objects which own objects */	457	/* next line added to allow objects which own objects */
450	/* Add a check for ownercounts in here, as I got into an endless loop	458	/* 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	459	* with the fireball owning a poison cloud which then owned the
452	* fireball. I believe that was caused by one of the objects getting	460	* fireball. I believe that was caused by one of the objects getting
453	* freed and then another object replacing it. Since the ownercounts	461	* 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.	462	* didn't match, this check is valid and I believe that cause is valid.
455	*/	463	*/
456	while (owner->owner && owner!=owner->owner &&	464	while (owner->owner)
457	owner->ownercount==owner->owner->count) owner=owner->owner;	465	owner = owner->owner;
458		466
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;	467	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	}	468	}
494		469
495	/* Zero the key_values on op, decrementing the shared-string	470	/* Zero the key_values on op, decrementing the shared-string
496	* refcounts and freeing the links.	471	* refcounts and freeing the links.
497	*/	472	*/
		473	static void
498	static void free_key_values(object * op)	474	free_key_values (object *op)
499	{	475	{
500	for (key_value *i = op->key_values; i != 0; )	476	for (key_value *i = op->key_values; i != 0;)
501	{	477	{
502	key_value *next = i->next;	478	key_value *next = i->next;
503	delete i;	479	delete i;
		480
504	i = next;	481	i = next;
505	}	482	}
506		483
507	op->key_values = 0;	484	op->key_values = 0;
508	}	485	}
509		486
510	void object::clear ()	487	void object::clear ()
511	{	488	{
512	attachable_base::clear ();	489	attachable_base::clear ();
513		490
514	free_key_values (this);	491	free_key_values (this);
515		492
516	name = 0;	493	owner = 0;
		494	name = 0;
517	name_pl = 0;	495	name_pl = 0;
518	title = 0;	496	title = 0;
519	race = 0;	497	race = 0;
520	slaying = 0;	498	slaying = 0;
521	skill = 0;	499	skill = 0;
522	msg = 0;	500	msg = 0;
523	lore = 0;	501	lore = 0;
524	custom_name = 0;	502	custom_name = 0;
525	materialname = 0;	503	materialname = 0;
		504	contr = 0;
		505	below = 0;
		506	above = 0;
		507	inv = 0;
		508	container = 0;
		509	env = 0;
		510	more = 0;
		511	head = 0;
		512	map = 0;
		513	active_next = 0;
		514	active_prev = 0;
526		515
527	memset (static_cast<object_pod *>(this), 0, sizeof (object_pod));	516	memset (static_cast<object_pod *>(this), 0, sizeof (object_pod));
528		517
529	SET_FLAG (this, FLAG_REMOVED);	518	SET_FLAG (this, FLAG_REMOVED);
530	}
531		519
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	/*
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 */	520	/* What is not cleared is next, prev, and count */
563		521
564	op->expmul = 1.0;	522	expmul = 1.0;
565	op->face = blank_face;	523	face = blank_face;
566	op->attacked_by_count = -1;
567		524
568	if (settings.casting_time)	525	if (settings.casting_time)
569	op->casting_time = -1;	526	casting_time = -1;
570	}	527	}
571		528
572	/*	529	/*
573	* copy object first frees everything allocated by the second object,	530	* copy_to first frees everything allocated by the dst object,
574	* and then copies the contends of the first object into the second	531	* and then copies the contents of itself into the second
575	* object, allocating what needs to be allocated. Basically, any	532	* object, allocating what needs to be allocated. Basically, any
576	* data that is malloc'd needs to be re-malloc/copied. Otherwise,	533	* 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	534	* if the first object is freed, the pointers in the new object
578	* will point at garbage.	535	* will point at garbage.
579	*/	536	*/
580		537	void
581	void copy_object (object *op2, object *op)	538	object::copy_to (object *dst)
582	{	539	{
583	bool is_freed = QUERY_FLAG (op, FLAG_FREED);	540	bool is_freed = QUERY_FLAG (dst, FLAG_FREED);
584	bool is_removed = QUERY_FLAG (op, FLAG_REMOVED);	541	bool is_removed = QUERY_FLAG (dst, FLAG_REMOVED);
585		542
586	op2->clone (op);	543	*(object_copy *)dst = *this;
		544	*(object_pod *)dst = *this;
587		545
588	if (is_freed) SET_FLAG (op, FLAG_FREED);	546	if (self || cb)
589	if (is_removed) SET_FLAG (op, FLAG_REMOVED);	547	INVOKE_OBJECT (CLONE, this, ARG_OBJECT (dst));
590		548
		549	if (is_freed)
		550	SET_FLAG (dst, FLAG_FREED);
		551
		552	if (is_removed)
		553	SET_FLAG (dst, FLAG_REMOVED);
		554
591	if (op2->speed < 0)	555	if (speed < 0)
592	op->speed_left = op2->speed_left - RANDOM() % 200 / 100.0;	556	dst->speed_left = speed_left - RANDOM () % 200 / 100.0;
593		557
594	/* Copy over key_values, if any. */	558	/* Copy over key_values, if any. */
595	if (op2->key_values != NULL)	559	if (key_values)
596	{	560	{
597	key_value *tail = NULL;	561	key_value *tail = 0;
598	key_value *i;	562	key_value *i;
599		563
600	op->key_values = NULL;	564	dst->key_values = 0;
601		565
602	for (i = op2->key_values; i != NULL; i = i->next)	566	for (i = key_values; i; i = i->next)
603	{	567	{
604	key_value *new_link = new key_value;	568	key_value *new_link = new key_value;
605		569
606	new_link->next = NULL;	570	new_link->next = 0;
607	new_link->key = i->key;	571	new_link->key = i->key;
608	new_link->value = i->value;	572	new_link->value = i->value;
609		573
610	/* Try and be clever here, too. */	574	/* Try and be clever here, too. */
611	if (op->key_values == NULL)	575	if (!dst->key_values)
612	{	576	{
613	op->key_values = new_link;	577	dst->key_values = new_link;
614	tail = new_link;	578	tail = new_link;
615	}	579	}
616	else	580	else
617	{	581	{
618	tail->next = new_link;	582	tail->next = new_link;
619	tail = new_link;	583	tail = new_link;
620	}	584	}
621	}	585	}
622	}	586	}
623		587
624	update_ob_speed (op);	588	update_ob_speed (dst);
		589	}
		590
		591	object *
		592	object::clone ()
		593	{
		594	object *neu = create ();
		595	copy_to (neu);
		596	return neu;
625	}	597	}
626		598
627	/*	599	/*
628	* If an object with the IS_TURNABLE() flag needs to be turned due	600	* 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	601	* 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.	602	* be called to update the face variable, _and_ how it looks on the map.
631	*/	603	*/
632		604
		605	void
633	void update_turn_face(object *op) {	606	update_turn_face (object *op)
		607	{
634	if(!QUERY_FLAG(op,FLAG_IS_TURNABLE)||op->arch==NULL)	608	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || op->arch == NULL)
635	return;	609	return;
636	SET_ANIMATION(op, op->direction);	610	SET_ANIMATION (op, op->direction);
637	update_object(op,UP_OBJ_FACE);	611	update_object (op, UP_OBJ_FACE);
638	}	612	}
639		613
640	/*	614	/*
641	* Updates the speed of an object. If the speed changes from 0 to another	615	* 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.	616	* 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.	617	* This function needs to be called whenever the speed of an object changes.
644	*/	618	*/
645		619	void
646	void update_ob_speed(object *op) {	620	update_ob_speed (object *op)
		621	{
647	extern int arch_init;	622	extern int arch_init;
648		623
649	/* No reason putting the archetypes objects on the speed list,	624	/* No reason putting the archetypes objects on the speed list,
650	* since they never really need to be updated.	625	* since they never really need to be updated.
651	*/	626	*/
652		627
653	if (QUERY_FLAG(op, FLAG_FREED) && op->speed) {	628	if (QUERY_FLAG (op, FLAG_FREED) && op->speed)
		629	{
654	LOG(llevError,"Object %s is freed but has speed.\n", &op->name);	630	LOG (llevError, "Object %s is freed but has speed.\n", &op->name);
655	#ifdef MANY_CORES	631	#ifdef MANY_CORES
656	abort();	632	abort ();
657	#else	633	#else
658	op->speed = 0;	634	op->speed = 0;
659	#endif	635	#endif
660	}	636	}
		637
661	if (arch_init) {	638	if (arch_init)
		639	return;
		640
		641	if (FABS (op->speed) > MIN_ACTIVE_SPEED)
		642	{
		643	/* If already on active list, don't do anything */
		644	if (op->active_next || op->active_prev || op == active_objects)
662	return;	645	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		646
669	/* process_events() expects us to insert the object at the beginning	647	/* process_events() expects us to insert the object at the beginning
670	* of the list. */	648	* of the list. */
671	op->active_next = active_objects;	649	op->active_next = active_objects;
		650
672	if (op->active_next!=NULL)	651	if (op->active_next != NULL)
673	op->active_next->active_prev = op;	652	op->active_next->active_prev = op;
		653
674	active_objects = op;	654	active_objects = op;
		655	}
		656	else
675	}	657	{
676	else {
677	/* If not on the active list, nothing needs to be done */	658	/* If not on the active list, nothing needs to be done */
678	if (!op->active_next && !op->active_prev && op!=active_objects)	659	if (!op->active_next && !op->active_prev && op != active_objects)
679	return;	660	return;
680		661
681	if (op->active_prev==NULL) {	662	if (op->active_prev == NULL)
		663	{
682	active_objects = op->active_next;	664	active_objects = op->active_next;
		665
683	if (op->active_next!=NULL)	666	if (op->active_next != NULL)
684	op->active_next->active_prev = NULL;	667	op->active_next->active_prev = NULL;
		668	}
		669	else
685	}	670	{
686	else {
687	op->active_prev->active_next = op->active_next;	671	op->active_prev->active_next = op->active_next;
		672
688	if (op->active_next)	673	if (op->active_next)
689	op->active_next->active_prev = op->active_prev;	674	op->active_next->active_prev = op->active_prev;
690	}	675	}
		676
691	op->active_next = NULL;	677	op->active_next = NULL;
692	op->active_prev = NULL;	678	op->active_prev = NULL;
693	}	679	}
694	}	680	}
695		681
696	/* This function removes object 'op' from the list of active	682	/* This function removes object 'op' from the list of active
697	* objects.	683	* objects.
…		…
699	* reference maps where you don't want an object that isn't	685	* reference maps where you don't want an object that isn't
700	* in play chewing up cpu time getting processed.	686	* in play chewing up cpu time getting processed.
701	* The reverse of this is to call update_ob_speed, which	687	* The reverse of this is to call update_ob_speed, which
702	* will do the right thing based on the speed of the object.	688	* will do the right thing based on the speed of the object.
703	*/	689	*/
		690	void
704	void remove_from_active_list(object *op)	691	remove_from_active_list (object *op)
705	{	692	{
706	/* If not on the active list, nothing needs to be done */	693	/* If not on the active list, nothing needs to be done */
707	if (!op->active_next && !op->active_prev && op!=active_objects)	694	if (!op->active_next && !op->active_prev && op != active_objects)
708	return;	695	return;
709		696
710	if (op->active_prev==NULL) {	697	if (op->active_prev == NULL)
		698	{
711	active_objects = op->active_next;	699	active_objects = op->active_next;
712	if (op->active_next!=NULL)	700	if (op->active_next != NULL)
713	op->active_next->active_prev = NULL;	701	op->active_next->active_prev = NULL;
		702	}
		703	else
714	}	704	{
715	else {
716	op->active_prev->active_next = op->active_next;	705	op->active_prev->active_next = op->active_next;
717	if (op->active_next)	706	if (op->active_next)
718	op->active_next->active_prev = op->active_prev;	707	op->active_next->active_prev = op->active_prev;
719	}	708	}
720	op->active_next = NULL;	709	op->active_next = NULL;
721	op->active_prev = NULL;	710	op->active_prev = NULL;
722	}	711	}
723		712
724	/*	713	/*
725	* update_object() updates the array which represents the map.	714	* update_object() updates the array which represents the map.
726	* It takes into account invisible objects (and represent squares covered	715	* It takes into account invisible objects (and represent squares covered
…		…
741	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update	730	* 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.	731	* as that is easier than trying to look at what may have changed.
743	* UP_OBJ_FACE: only the objects face has changed.	732	* UP_OBJ_FACE: only the objects face has changed.
744	*/	733	*/
745		734
		735	void
746	void update_object(object *op, int action) {	736	update_object (object *op, int action)
		737	{
747	int update_now=0, flags;	738	int update_now = 0, flags;
748	MoveType move_on, move_off, move_block, move_slow;	739	MoveType move_on, move_off, move_block, move_slow;
749		740
750	if (op == NULL) {	741	if (op == NULL)
		742	{
751	/* this should never happen */	743	/* this should never happen */
752	LOG(llevDebug,"update_object() called for NULL object.\n");	744	LOG (llevDebug, "update_object() called for NULL object.\n");
753	return;	745	return;
754	}
755		746	}
		747
756	if(op->env!=NULL) {	748	if (op->env != NULL)
		749	{
757	/* Animation is currently handled by client, so nothing	750	/* Animation is currently handled by client, so nothing
758	* to do in this case.	751	* to do in this case.
759	*/	752	*/
760	return;	753	return;
761	}	754	}
762		755
763	/* If the map is saving, don't do anything as everything is	756	/* If the map is saving, don't do anything as everything is
764	* going to get freed anyways.	757	* going to get freed anyways.
765	*/	758	*/
766	if (!op->map || op->map->in_memory == MAP_SAVING) return;	759	if (!op->map || op->map->in_memory == MAP_SAVING)
767		760	return;
		761
768	/* make sure the object is within map boundaries */	762	/* make sure the object is within map boundaries */
769	if (op->x < 0 || op->x >= MAP_WIDTH(op->map) ||	763	if (op->x < 0 || op->x >= MAP_WIDTH (op->map) || op->y < 0 || op->y >= MAP_HEIGHT (op->map))
770	op->y < 0 || op->y >= MAP_HEIGHT(op->map)) {	764	{
771	LOG(llevError,"update_object() called for object out of map!\n");	765	LOG (llevError, "update_object() called for object out of map!\n");
772	#ifdef MANY_CORES	766	#ifdef MANY_CORES
773	abort();	767	abort ();
774	#endif	768	#endif
775	return;	769	return;
776	}
777		770	}
		771
778	flags = GET_MAP_FLAGS(op->map, op->x, op->y);	772	flags = GET_MAP_FLAGS (op->map, op->x, op->y);
779	SET_MAP_FLAGS(op->map, op->x, op->y, flags | P_NEED_UPDATE);	773	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);	774	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);	775	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);	776	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);	777	move_off = GET_MAP_MOVE_OFF (op->map, op->x, op->y);
784		778
785	if (action == UP_OBJ_INSERT) {	779	if (action == UP_OBJ_INSERT)
		780	{
786	if (QUERY_FLAG(op, FLAG_BLOCKSVIEW) && !(flags & P_BLOCKSVIEW))	781	if (QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(flags & P_BLOCKSVIEW))
787	update_now=1;	782	update_now = 1;
788		783
789	if (QUERY_FLAG(op, FLAG_NO_MAGIC) && !(flags & P_NO_MAGIC))	784	if (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(flags & P_NO_MAGIC))
790	update_now=1;	785	update_now = 1;
791		786
792	if (QUERY_FLAG(op, FLAG_DAMNED) && !(flags & P_NO_CLERIC))	787	if (QUERY_FLAG (op, FLAG_DAMNED) && !(flags & P_NO_CLERIC))
793	update_now=1;	788	update_now = 1;
794		789
795	if (QUERY_FLAG(op, FLAG_ALIVE) && !(flags & P_IS_ALIVE))	790	if (QUERY_FLAG (op, FLAG_ALIVE) && !(flags & P_IS_ALIVE))
796	update_now=1;	791	update_now = 1;
797		792
798	if (op->type == SAFE_GROUND && !(flags & P_SAFE))	793	if (op->type == SAFE_GROUND && !(flags & P_SAFE))
799	update_now=1;	794	update_now = 1;
800		795
801	if ((move_on | op->move_on) != move_on) update_now=1;	796	if ((move_on | op->move_on) != move_on)
		797	update_now = 1;
802		798
803	if ((move_off | op->move_off) != move_off) update_now=1;	799	if ((move_off | op->move_off) != move_off)
		800	update_now = 1;
804		801
805	/* This isn't perfect, but I don't expect a lot of objects to	802	/* This isn't perfect, but I don't expect a lot of objects to
806	* to have move_allow right now.	803	* to have move_allow right now.
807	*/	804	*/
808	if (((move_block | op->move_block) & ~op->move_allow) != move_block)	805	if (((move_block | op->move_block) & ~op->move_allow) != move_block)
809	update_now=1;	806	update_now = 1;
810		807
811	if ((move_slow | op->move_slow) != move_slow)	808	if ((move_slow | op->move_slow) != move_slow)
812	update_now=1;	809	update_now = 1;
813	}	810	}
		811
814	/* if the object is being removed, we can't make intelligent	812	/* if the object is being removed, we can't make intelligent
815	* decisions, because remove_ob can't really pass the object	813	* decisions, because remove_ob can't really pass the object
816	* that is being removed.	814	* that is being removed.
817	*/	815	*/
818	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE) {	816	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)
819	update_now=1;	817	update_now = 1;
820	} else if (action == UP_OBJ_FACE) {	818	else if (action == UP_OBJ_FACE)
821	/* Nothing to do for that case */	819	/* Nothing to do for that case */ ;
822	}
823	else {	820	else
824	LOG(llevError,"update_object called with invalid action: %d\n", action);	821	LOG (llevError, "update_object called with invalid action: %d\n", action);
825	}
826		822
827	if (update_now) {	823	if (update_now)
		824	{
828	SET_MAP_FLAGS(op->map, op->x, op->y, flags | P_NO_ERROR | P_NEED_UPDATE);	825	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);	826	update_position (op->map, op->x, op->y);
830	}	827	}
831		828
832	if(op->more!=NULL)	829	if (op->more != NULL)
833	update_object(op->more, action);	830	update_object (op->more, action);
834	}	831	}
835		832
836	static std::vector<object *> mortals;	833	object::vector object::mortals;
		834	object::vector object::objects; // not yet used
		835	object *object::first;
837		836
838	void object::free_mortals ()	837	void object::free_mortals ()
839	{	838	{
840	for (std::vector<object *>::iterator i = mortals.begin (); i != mortals.end (); ++i)	839	for (AUTODECL (i, mortals.begin ()); i != mortals.end ();)
		840	if ((*i)->refcnt)
		841	++i; // further delay freeing
		842	else
		843	{
841	delete *i;	844	delete *i;
842		845	mortals.erase (i);
843	mortals.clear ();	846	}
844	}	847	}
845		848
846	object::object ()	849	object::object ()
847	{	850	{
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);	851	SET_FLAG (this, FLAG_REMOVED);
859		852
860	expmul = 1.0;	853	expmul = 1.0;
861	face = blank_face;	854	face = blank_face;
862	attacked_by_count = -1;
863	}	855	}
864		856
865	object::~object ()	857	object::~object ()
866	{	858	{
		859	free_key_values (this);
		860	}
		861
		862	void object::link ()
		863	{
		864	count = ++ob_count;
		865	uuid = gen_uuid ();
		866
		867	prev = 0;
		868	next = object::first;
		869
		870	if (object::first)
		871	object::first->prev = this;
		872
		873	object::first = this;
		874	}
		875
		876	void object::unlink ()
		877	{
		878	if (this == object::first)
		879	object::first = next;
		880
		881	/* Remove this object from the list of used objects */
		882	if (prev) prev->next = next;
		883	if (next) next->prev = prev;
		884
		885	prev = 0;
		886	next = 0;
867	}	887	}
868		888
869	object *object::create ()	889	object *object::create ()
870	{	890	{
871	return new object;	891	object *op = new object;
		892	op->link ();
		893	return op;
872	}	894	}
873		895
874	/*	896	/*
875	* free_object() frees everything allocated by an object, removes	897	* free_object() frees everything allocated by an object, removes
876	* it from the list of used objects, and puts it on the list of	898	* 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.	899	* free objects. The IS_FREED() flag is set in the object.
878	* The object must have been removed by remove_ob() first for	900	* The object must have been removed by remove_ob() first for
879	* this function to succeed.	901	* this function to succeed.
880	*	902	*
881	* If free_inventory is set, free inventory as well. Else drop items in	903	* If destroy_inventory is set, free inventory as well. Else drop items in
882	* inventory to the ground.	904	* inventory to the ground.
883	*/	905	*/
884	void	906	void object::destroy (bool destroy_inventory)
885	object::free (bool free_inventory)
886	{	907	{
		908	if (QUERY_FLAG (this, FLAG_FREED))
		909	return;
		910
		911	if (QUERY_FLAG (this, FLAG_FRIENDLY))
		912	remove_friendly_object (this);
		913
887	if (!QUERY_FLAG (this, FLAG_REMOVED))	914	if (!QUERY_FLAG (this, FLAG_REMOVED))
888	{	915	remove ();
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		916
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))	917	SET_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		918
909	if (more)	919	if (more)
910	{	920	{
911	more->free (free_inventory);	921	more->destroy (destroy_inventory);
912	more = 0;	922	more = 0;
913	}	923	}
914		924
915	if (inv)	925	if (inv)
916	{	926	{
917	/* Only if the space blocks everything do we not process -	927	/* Only if the space blocks everything do we not process -
918	* if some form of movement is allowed, let objects	928	* if some form of movement is allowed, let objects
919	* drop on that space.	929	* drop on that space.
920	*/	930	*/
921	if (free_inventory || !map	931	if (destroy_inventory || !map || map->in_memory != MAP_IN_MEMORY || GET_MAP_MOVE_BLOCK (map, x, y) == MOVE_ALL)
922	|| map->in_memory != MAP_IN_MEMORY	932	{
923	|| (GET_MAP_MOVE_BLOCK (map, x, y) == MOVE_ALL))
924	{
925	object *op = inv;	933	object *op = inv;
926		934
927	while (op)	935	while (op)
928	{	936	{
929	object *tmp = op->below;	937	object *tmp = op->below;
930	remove_ob (op);
931	op->free (free_inventory);	938	op->destroy (destroy_inventory);
932	op = tmp;	939	op = tmp;
933	}	940	}
934	}	941	}
935	else	942	else
936	{ /* Put objects in inventory onto this space */	943	{ /* Put objects in inventory onto this space */
937	object *op = inv;	944	object *op = inv;
938		945
939	while (op)	946	while (op)
940	{	947	{
941	object *tmp = op->below;	948	object *tmp = op->below;
942	remove_ob (op);
943		949
		950	op->remove ();
		951
944	if (QUERY_FLAG (op, FLAG_STARTEQUIP)	952	if (QUERY_FLAG (op, FLAG_STARTEQUIP)
945	|| QUERY_FLAG (op, FLAG_NO_DROP) || op->type == RUNE	953	|| QUERY_FLAG (op, FLAG_NO_DROP) || op->type == RUNE || op->type == TRAP || QUERY_FLAG (op, FLAG_IS_A_TEMPLATE))
946	|| op->type == TRAP || QUERY_FLAG (op, FLAG_IS_A_TEMPLATE))	954	op->destroy ();
947	free_object (op);	955	else
948	else	956	{
949	{	957	op->x = x;
950	op->x = x;	958	op->y = y;
951	op->y = y;
952	insert_ob_in_map (op, map, 0, 0); /* Insert in same map as the envir */	959	insert_ob_in_map (op, map, 0, 0); /* Insert in same map as the envir */
953	}	960	}
954		961
955	op = tmp;	962	op = tmp;
		963	}
		964	}
956	}	965	}
957	}	966
		967	// hack to ensure that freed objects still have a valid map
		968	{
		969	static maptile *freed_map; // freed objects are moved here to avoid crashes
		970
		971	if (!freed_map)
		972	{
		973	freed_map = new maptile;
		974
		975	freed_map->name = "/internal/freed_objects_map";
		976	freed_map->width = 3;
		977	freed_map->height = 3;
		978
		979	freed_map->allocate ();
958	}	980	}
		981
		982	map = freed_map;
		983	x = 1;
		984	y = 1;
		985	}
		986
		987	// clear those pointers that likely might have circular references to us
		988	owner = 0;
		989	enemy = 0;
		990	attacked_by = 0;
		991
		992	// only relevant for players(?), but make sure of it anyways
		993	contr = 0;
959		994
960	/* Remove object from the active list */	995	/* Remove object from the active list */
961	speed = 0;	996	speed = 0;
962	update_ob_speed (this);	997	update_ob_speed (this);
963		998
964	SET_FLAG (this, FLAG_FREED);	999	unlink ();
965
966	mortalise ();
967	}
968
969	void
970	object::mortalise ()
971	{
972	count = 0;
973
974	/* Remove this object from the list of used objects */
975	if (prev) prev->next = next;
976	if (next) next->prev = prev;
977	if (this == objects) objects = next;
978
979	free_key_values (this);
980		1000
981	mortals.push_back (this);	1001	mortals.push_back (this);
982	}	1002	}
983		1003
984	/*	1004	/*
985	* sub_weight() recursively (outwards) subtracts a number from the	1005	* sub_weight() recursively (outwards) subtracts a number from the
986	* weight of an object (and what is carried by it's environment(s)).	1006	* weight of an object (and what is carried by it's environment(s)).
987	*/	1007	*/
988		1008	void
989	void sub_weight (object *op, signed long weight) {	1009	sub_weight (object *op, signed long weight)
		1010	{
990	while (op != NULL) {	1011	while (op != NULL)
		1012	{
991	if (op->type == CONTAINER) {	1013	if (op->type == CONTAINER)
992	weight=(signed long)(weight*(100-op->stats.Str)/100);	1014	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
993	}	1015
994	op->carrying-=weight;	1016	op->carrying -= weight;
995	op = op->env;	1017	op = op->env;
996	}	1018	}
997	}	1019	}
998		1020
999	/* remove_ob(op):	1021	/* op->remove ():
1000	* This function removes the object op from the linked list of objects	1022	* 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	1023	* which it is currently tied to. When this function is done, the
1002	* object will have no environment. If the object previously had an	1024	* object will have no environment. If the object previously had an
1003	* environment, the x and y coordinates will be updated to	1025	* environment, the x and y coordinates will be updated to
1004	* the previous environment.	1026	* the previous environment.
1005	* Beware: This function is called from the editor as well!	1027	* Beware: This function is called from the editor as well!
1006	*/	1028	*/
1007		1029	void
1008	void remove_ob(object *op) {	1030	object::remove ()
		1031	{
1009	object *tmp,*last=NULL;	1032	object *tmp, *last = 0;
1010	object *otmp;	1033	object *otmp;
1011	tag_t tag;	1034
1012	int check_walk_off;	1035	int check_walk_off;
1013	mapstruct *m;
1014	sint16 x,y;
1015
1016		1036
1017	if(QUERY_FLAG(op,FLAG_REMOVED)) {	1037	if (QUERY_FLAG (this, FLAG_REMOVED))
1018	dump_object(op);	1038	return;
1019	LOG(llevError,"Trying to remove removed object.\n%s\n",errmsg);
1020		1039
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);	1040	SET_FLAG (this, FLAG_REMOVED);
1037		1041
		1042	if (more)
		1043	more->remove ();
		1044
1038	/*	1045	/*
1039	* In this case, the object to be removed is in someones	1046	* In this case, the object to be removed is in someones
1040	* inventory.	1047	* inventory.
1041	*/	1048	*/
1042	if(op->env!=NULL) {	1049	if (env)
		1050	{
1043	if(op->nrof)	1051	if (nrof)
1044	sub_weight(op->env, op->weight*op->nrof);	1052	sub_weight (env, weight * nrof);
1045	else	1053	else
1046	sub_weight(op->env, op->weight+op->carrying);	1054	sub_weight (env, weight + carrying);
1047		1055
1048	/* NO_FIX_PLAYER is set when a great many changes are being	1056	/* NO_FIX_PLAYER is set when a great many changes are being
1049	* made to players inventory. If set, avoiding the call	1057	* made to players inventory. If set, avoiding the call
1050	* to save cpu time.	1058	* to save cpu time.
1051	*/	1059	*/
1052	if ((otmp=is_player_inv(op->env))!=NULL && otmp->contr &&	1060	if ((otmp = is_player_inv (env)) != NULL && otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1053	!QUERY_FLAG(otmp,FLAG_NO_FIX_PLAYER))
1054	fix_player(otmp);	1061	fix_player (otmp);
1055		1062
1056	if(op->above!=NULL)	1063	if (above != NULL)
1057	op->above->below=op->below;	1064	above->below = below;
1058	else	1065	else
1059	op->env->inv=op->below;	1066	env->inv = below;
1060		1067
1061	if(op->below!=NULL)	1068	if (below != NULL)
1062	op->below->above=op->above;	1069	below->above = above;
1063		1070
1064	/* we set up values so that it could be inserted into	1071	/* we set up values so that it could be inserted into
1065	* the map, but we don't actually do that - it is up	1072	* the map, but we don't actually do that - it is up
1066	* to the caller to decide what we want to do.	1073	* to the caller to decide what we want to do.
		1074	*/
		1075	x = env->x, y = env->y;
		1076	map = env->map;
		1077	above = 0, below = 0;
		1078	env = 0;
		1079	}
		1080	else if (map)
		1081	{
		1082	/* Re did the following section of code - it looks like it had
		1083	* lots of logic for things we no longer care about
		1084	*/
		1085
		1086	/* link the object above us */
		1087	if (above)
		1088	above->below = below;
		1089	else
		1090	SET_MAP_TOP (map, x, y, below); /* we were top, set new top */
		1091
		1092	/* Relink the object below us, if there is one */
		1093	if (below)
		1094	below->above = above;
		1095	else
		1096	{
		1097	/* Nothing below, which means we need to relink map object for this space
		1098	* use translated coordinates in case some oddness with map tiling is
		1099	* evident
1067	*/	1100	*/
1068	op->x=op->env->x,op->y=op->env->y;	1101	if (GET_MAP_OB (map, x, y) != this)
1069	op->map=op->env->map;	1102	{
1070	op->above=NULL,op->below=NULL;	1103	char *dump = dump_object (this);
1071	op->env=NULL;	1104	LOG (llevError,
		1105	"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);
		1106	free (dump);
		1107	dump = dump_object (GET_MAP_OB (map, x, y));
		1108	LOG (llevError, "%s\n", dump);
		1109	free (dump);
		1110	}
		1111
		1112	SET_MAP_OB (map, x, y, above); /* goes on above it. */
		1113	}
		1114
		1115	above = 0;
		1116	below = 0;
		1117
		1118	if (map->in_memory == MAP_SAVING)
1072	return;	1119	return;
1073	}
1074		1120
1075	/* If we get here, we are removing it from a map */
1076	if (op->map == NULL) return;
1077
1078	x = op->x;
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	}
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);	1121	check_walk_off = !QUERY_FLAG (this, FLAG_NO_APPLY);
		1122
1130	for(tmp=GET_MAP_OB(m,x,y);tmp!=NULL;tmp=tmp->above) {	1123	for (tmp = GET_MAP_OB (map, x, y); tmp; tmp = tmp->above)
		1124	{
1131	/* No point updating the players look faces if he is the object	1125	/* No point updating the players look faces if he is the object
1132	* being removed.	1126	* being removed.
1133	*/	1127	*/
1134		1128
1135	if(tmp->type==PLAYER && tmp!=op) {	1129	if (tmp->type == PLAYER && tmp != this)
		1130	{
1136	/* If a container that the player is currently using somehow gets	1131	/* If a container that the player is currently using somehow gets
1137	* removed (most likely destroyed), update the player view	1132	* removed (most likely destroyed), update the player view
1138	* appropriately.	1133	* appropriately.
1139	*/	1134	*/
1140	if (tmp->container==op) {	1135	if (tmp->container == this)
		1136	{
1141	CLEAR_FLAG(op, FLAG_APPLIED);	1137	CLEAR_FLAG (this, FLAG_APPLIED);
1142	tmp->container=NULL;	1138	tmp->container = 0;
		1139	}
		1140
		1141	tmp->contr->socket->floorbox_update ();
1143	}	1142	}
1144	tmp->contr->socket.update_look=1;	1143
1145	}
1146	/* See if player moving off should effect something */	1144	/* See if player moving off should effect something */
1147	if (check_walk_off && ((op->move_type & tmp->move_off) &&	1145	if (check_walk_off
		1146	&& ((move_type & tmp->move_off)
1148	(op->move_type & ~tmp->move_off & ~tmp->move_block)==0)) {	1147	&& (move_type & ~tmp->move_off & ~tmp->move_block) == 0))
1149		1148	{
1150	move_apply(tmp, op, NULL);	1149	move_apply (tmp, this, 0);
		1150
1151	if (was_destroyed (op, tag)) {	1151	if (destroyed ())
1152	LOG (llevError, "BUG: remove_ob(): name %s, archname %s destroyed "	1152	LOG (llevError, "BUG: remove_ob(): name %s, destroyed leaving object\n", tmp->debug_desc ());
1153	"leaving object\n", &tmp->name, &tmp->arch->name);
1154	}	1153	}
1155	}
1156		1154
1157	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */	1155	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */
1158		1156
1159	if(tmp->above == tmp)	1157	if (tmp->above == tmp)
1160	tmp->above = NULL;	1158	tmp->above = 0;
		1159
1161	last=tmp;	1160	last = tmp;
1162	}	1161	}
		1162
1163	/* last == NULL of there are no objects on this space */	1163	/* last == NULL of there are no objects on this space */
1164	if (last==NULL) {	1164	if (!last)
		1165	{
1165	/* set P_NEED_UPDATE, otherwise update_position will complain. In theory,	1166	/* set P_NEED_UPDATE, otherwise update_position will complain. In theory,
1166	* we could preserve the flags (GET_MAP_FLAGS), but update_position figures	1167	* we could preserve the flags (GET_MAP_FLAGS), but update_position figures
1167	* those out anyways, and if there are any flags set right now, they won't	1168	* those out anyways, and if there are any flags set right now, they won't
1168	* be correct anyways.	1169	* be correct anyways.
1169	*/	1170	*/
1170	SET_MAP_FLAGS(op->map, op->x, op->y, P_NEED_UPDATE);	1171	SET_MAP_FLAGS (map, x, y, P_NEED_UPDATE);
1171	update_position(op->map, op->x, op->y);	1172	update_position (map, x, y);
1172	}	1173	}
1173	else	1174	else
1174	update_object(last, UP_OBJ_REMOVE);	1175	update_object (last, UP_OBJ_REMOVE);
1175		1176
1176	if(QUERY_FLAG(op,FLAG_BLOCKSVIEW)|| (op->glow_radius != 0))	1177	if (QUERY_FLAG (this, FLAG_BLOCKSVIEW) || glow_radius)
1177	update_all_los(op->map, op->x, op->y);	1178	update_all_los (map, x, y);
1178		1179	}
1179	}	1180	}
1180		1181
1181	/*	1182	/*
1182	* merge_ob(op,top):	1183	* merge_ob(op,top):
1183	*	1184	*
1184	* This function goes through all objects below and including top, and	1185	* This function goes through all objects below and including top, and
1185	* merges op to the first matching object.	1186	* merges op to the first matching object.
1186	* If top is NULL, it is calculated.	1187	* If top is NULL, it is calculated.
1187	* Returns pointer to object if it succeded in the merge, otherwise NULL	1188	* Returns pointer to object if it succeded in the merge, otherwise NULL
1188	*/	1189	*/
1189		1190	object *
1190	object *merge_ob(object *op, object *top) {	1191	merge_ob (object *op, object *top)
		1192	{
1191	if(!op->nrof)	1193	if (!op->nrof)
1192	return 0;	1194	return 0;
		1195
1193	if(top==NULL)	1196	if (top == NULL)
1194	for(top=op;top!=NULL&&top->above!=NULL;top=top->above);	1197	for (top = op; top != NULL && top->above != NULL; top = top->above);
		1198
1195	for(;top!=NULL;top=top->below) {	1199	for (; top != NULL; top = top->below)
		1200	{
1196	if(top==op)	1201	if (top == op)
1197	continue;	1202	continue;
1198	if (CAN_MERGE(op,top))	1203
1199	{	1204	if (object::can_merge (op, top))
		1205	{
1200	top->nrof+=op->nrof;	1206	top->nrof += op->nrof;
		1207
1201	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/	1208	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/
1202	op->weight = 0; /* Don't want any adjustements now */	1209	op->weight = 0; /* Don't want any adjustements now */
1203	remove_ob(op);	1210	op->destroy ();
1204	free_object(op);
1205	return top;	1211	return top;
1206	}	1212	}
1207	}	1213	}
		1214
1208	return NULL;	1215	return 0;
1209	}	1216	}
1210		1217
1211	/*	1218	/*
1212	* same as insert_ob_in_map except it handle separate coordinates and do a clean	1219	* same as insert_ob_in_map except it handle separate coordinates and do a clean
1213	* job preparing multi-part monsters	1220	* job preparing multi-part monsters
1214	*/	1221	*/
		1222	object *
1215	object *insert_ob_in_map_at(object *op, mapstruct *m, object *originator, int flag, int x, int y){	1223	insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)
		1224	{
1216	object* tmp;	1225	object *tmp;
		1226
1217	if (op->head)	1227	if (op->head)
1218	op=op->head;	1228	op = op->head;
		1229
1219	for (tmp=op;tmp;tmp=tmp->more){	1230	for (tmp = op; tmp; tmp = tmp->more)
		1231	{
1220	tmp->x=x+tmp->arch->clone.x;	1232	tmp->x = x + tmp->arch->clone.x;
1221	tmp->y=y+tmp->arch->clone.y;	1233	tmp->y = y + tmp->arch->clone.y;
1222	}	1234	}
		1235
1223	return insert_ob_in_map (op, m, originator, flag);	1236	return insert_ob_in_map (op, m, originator, flag);
1224	}	1237	}
1225		1238
1226	/*	1239	/*
1227	* insert_ob_in_map (op, map, originator, flag):	1240	* insert_ob_in_map (op, map, originator, flag):
1228	* This function inserts the object in the two-way linked list	1241	* This function inserts the object in the two-way linked list
…		…
1242	* new object if 'op' was merged with other object	1255	* new object if 'op' was merged with other object
1243	* NULL if 'op' was destroyed	1256	* NULL if 'op' was destroyed
1244	* just 'op' otherwise	1257	* just 'op' otherwise
1245	*/	1258	*/
1246		1259
		1260	object *
1247	object *insert_ob_in_map (object *op, mapstruct *m, object *originator, int flag)	1261	insert_ob_in_map (object *op, maptile *m, object *originator, int flag)
1248	{	1262	{
1249	object *tmp, *top, *floor=NULL;	1263	object *tmp, *top, *floor = NULL;
1250	sint16 x,y;	1264	sint16 x, y;
1251		1265
1252	if (QUERY_FLAG (op, FLAG_FREED)) {	1266	if (QUERY_FLAG (op, FLAG_FREED))
		1267	{
1253	LOG (llevError, "Trying to insert freed object!\n");	1268	LOG (llevError, "Trying to insert freed object!\n");
		1269	return NULL;
		1270	}
		1271
		1272	if (m == NULL)
		1273	{
		1274	char *dump = dump_object (op);
		1275	LOG (llevError, "Trying to insert in null-map!\n%s\n", dump);
		1276	free (dump);
		1277	return op;
		1278	}
		1279
		1280	if (out_of_map (m, op->x, op->y))
		1281	{
		1282	char *dump = dump_object (op);
		1283	LOG (llevError, "Trying to insert object outside the map.\n%s\n", dump);
		1284	#ifdef MANY_CORES
		1285	/* Better to catch this here, as otherwise the next use of this object
		1286	* is likely to cause a crash. Better to find out where it is getting
		1287	* improperly inserted.
		1288	*/
		1289	abort ();
		1290	#endif
		1291	free (dump);
		1292	return op;
		1293	}
		1294
		1295	if (!QUERY_FLAG (op, FLAG_REMOVED))
		1296	{
		1297	char *dump = dump_object (op);
		1298	LOG (llevError, "Trying to insert (map) inserted object.\n%s\n", dump);
		1299	free (dump);
		1300	return op;
		1301	}
		1302
		1303	if (op->more != NULL)
		1304	{
		1305	/* The part may be on a different map. */
		1306
		1307	object *more = op->more;
		1308
		1309	/* We really need the caller to normalize coordinates - if
		1310	* we set the map, that doesn't work if the location is within
		1311	* a map and this is straddling an edge. So only if coordinate
		1312	* is clear wrong do we normalize it.
		1313	*/
		1314	if (OUT_OF_REAL_MAP (more->map, more->x, more->y))
		1315	more->map = get_map_from_coord (m, &more->x, &more->y);
		1316	else if (!more->map)
		1317	{
		1318	/* For backwards compatibility - when not dealing with tiled maps,
		1319	* more->map should always point to the parent.
		1320	*/
		1321	more->map = m;
		1322	}
		1323
		1324	if (insert_ob_in_map (more, more->map, originator, flag) == NULL)
		1325	{
		1326	if (!op->head)
		1327	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");
		1328
		1329	return NULL;
		1330	}
		1331	}
		1332
		1333	CLEAR_FLAG (op, FLAG_REMOVED);
		1334
		1335	/* Ideally, the caller figures this out. However, it complicates a lot
		1336	* of areas of callers (eg, anything that uses find_free_spot would now
		1337	* need extra work
		1338	*/
		1339	op->map = get_map_from_coord (m, &op->x, &op->y);
		1340	x = op->x;
		1341	y = op->y;
		1342
		1343	/* this has to be done after we translate the coordinates.
		1344	*/
		1345	if (op->nrof && !(flag & INS_NO_MERGE))
		1346	for (tmp = GET_MAP_OB (op->map, x, y); tmp != NULL; tmp = tmp->above)
		1347	if (object::can_merge (op, tmp))
		1348	{
		1349	op->nrof += tmp->nrof;
		1350	tmp->destroy ();
		1351	}
		1352
		1353	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */
		1354	CLEAR_FLAG (op, FLAG_INV_LOCKED);
		1355
		1356	if (!QUERY_FLAG (op, FLAG_ALIVE))
		1357	CLEAR_FLAG (op, FLAG_NO_STEAL);
		1358
		1359	if (flag & INS_BELOW_ORIGINATOR)
		1360	{
		1361	if (originator->map != op->map || originator->x != op->x || originator->y != op->y)
		1362	{
		1363	LOG (llevError, "insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");
		1364	abort ();
		1365	}
		1366
		1367	op->above = originator;
		1368	op->below = originator->below;
		1369
		1370	if (op->below)
		1371	op->below->above = op;
		1372	else
		1373	SET_MAP_OB (op->map, op->x, op->y, op);
		1374
		1375	/* since *below* originator, no need to update top */
		1376	originator->below = op;
		1377	}
		1378	else
		1379	{
		1380	/* If there are other objects, then */
		1381	if ((!(flag & INS_MAP_LOAD)) && ((top = GET_MAP_OB (op->map, op->x, op->y)) != NULL))
		1382	{
		1383	object *last = NULL;
		1384
		1385	/*
		1386	* If there are multiple objects on this space, we do some trickier handling.
		1387	* We've already dealt with merging if appropriate.
		1388	* Generally, we want to put the new object on top. But if
		1389	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last
		1390	* floor, we want to insert above that and no further.
		1391	* Also, if there are spell objects on this space, we stop processing
		1392	* once we get to them. This reduces the need to traverse over all of
		1393	* them when adding another one - this saves quite a bit of cpu time
		1394	* when lots of spells are cast in one area. Currently, it is presumed
		1395	* that flying non pickable objects are spell objects.
		1396	*/
		1397
		1398	while (top != NULL)
		1399	{
		1400	if (QUERY_FLAG (top, FLAG_IS_FLOOR) || QUERY_FLAG (top, FLAG_OVERLAY_FLOOR))
		1401	floor = top;
		1402
		1403	if (QUERY_FLAG (top, FLAG_NO_PICK) && (top->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (top, FLAG_IS_FLOOR))
		1404	{
		1405	/* We insert above top, so we want this object below this */
		1406	top = top->below;
		1407	break;
		1408	}
		1409
		1410	last = top;
		1411	top = top->above;
		1412	}
		1413
		1414	/* Don't want top to be NULL, so set it to the last valid object */
		1415	top = last;
		1416
		1417	/* We let update_position deal with figuring out what the space
		1418	* looks like instead of lots of conditions here.
		1419	* makes things faster, and effectively the same result.
		1420	*/
		1421
		1422	/* Have object 'fall below' other objects that block view.
		1423	* Unless those objects are exits, type 66
		1424	* If INS_ON_TOP is used, don't do this processing
		1425	* Need to find the object that in fact blocks view, otherwise
		1426	* stacking is a bit odd.
		1427	*/
		1428	if (!(flag & INS_ON_TOP) &&
		1429	(get_map_flags (op->map, NULL, op->x, op->y, NULL, NULL) & P_BLOCKSVIEW) && (op->face && !op->face->visibility))
		1430	{
		1431	for (last = top; last != floor; last = last->below)
		1432	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))
		1433	break;
		1434	/* Check to see if we found the object that blocks view,
		1435	* and make sure we have a below pointer for it so that
		1436	* we can get inserted below this one, which requires we
		1437	* set top to the object below us.
		1438	*/
		1439	if (last && last->below && last != floor)
		1440	top = last->below;
		1441	}
		1442	} /* If objects on this space */
		1443
		1444	if (flag & INS_MAP_LOAD)
		1445	top = GET_MAP_TOP (op->map, op->x, op->y);
		1446
		1447	if (flag & INS_ABOVE_FLOOR_ONLY)
		1448	top = floor;
		1449
		1450	/* Top is the object that our object (op) is going to get inserted above.
		1451	*/
		1452
		1453	/* First object on this space */
		1454	if (!top)
		1455	{
		1456	op->above = GET_MAP_OB (op->map, op->x, op->y);
		1457
		1458	if (op->above)
		1459	op->above->below = op;
		1460
		1461	op->below = NULL;
		1462	SET_MAP_OB (op->map, op->x, op->y, op);
		1463	}
		1464	else
		1465	{ /* get inserted into the stack above top */
		1466	op->above = top->above;
		1467
		1468	if (op->above)
		1469	op->above->below = op;
		1470
		1471	op->below = top;
		1472	top->above = op;
		1473	}
		1474
		1475	if (op->above == NULL)
		1476	SET_MAP_TOP (op->map, op->x, op->y, op);
		1477	} /* else not INS_BELOW_ORIGINATOR */
		1478
		1479	if (op->type == PLAYER)
		1480	op->contr->do_los = 1;
		1481
		1482	/* If we have a floor, we know the player, if any, will be above
		1483	* it, so save a few ticks and start from there.
		1484	*/
		1485	if (!(flag & INS_MAP_LOAD))
		1486	for (tmp = floor ? floor : GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)
		1487	if (tmp->type == PLAYER)
		1488	tmp->contr->socket->floorbox_update ();
		1489
		1490	/* If this object glows, it may affect lighting conditions that are
		1491	* visible to others on this map. But update_all_los is really
		1492	* an inefficient way to do this, as it means los for all players
		1493	* on the map will get recalculated. The players could very well
		1494	* be far away from this change and not affected in any way -
		1495	* this should get redone to only look for players within range,
		1496	* or just updating the P_NEED_UPDATE for spaces within this area
		1497	* of effect may be sufficient.
		1498	*/
		1499	if (MAP_DARKNESS (op->map) && (op->glow_radius != 0))
		1500	update_all_los (op->map, op->x, op->y);
		1501
		1502	/* updates flags (blocked, alive, no magic, etc) for this map space */
		1503	update_object (op, UP_OBJ_INSERT);
		1504
		1505	/* Don't know if moving this to the end will break anything. However,
		1506	* we want to have floorbox_update called before calling this.
		1507	*
		1508	* check_move_on() must be after this because code called from
		1509	* check_move_on() depends on correct map flags (so functions like
		1510	* blocked() and wall() work properly), and these flags are updated by
		1511	* update_object().
		1512	*/
		1513
		1514	/* if this is not the head or flag has been passed, don't check walk on status */
		1515	if (!(flag & INS_NO_WALK_ON) && !op->head)
		1516	{
		1517	if (check_move_on (op, originator))
1254	return NULL;	1518	return NULL;
1255	}
1256	if(m==NULL) {
1257	dump_object(op);
1258	LOG(llevError,"Trying to insert in null-map!\n%s\n",errmsg);
1259	return op;
1260	}
1261	if(out_of_map(m,op->x,op->y)) {
1262	dump_object(op);
1263	LOG(llevError,"Trying to insert object outside the map.\n%s\n", errmsg);
1264	#ifdef MANY_CORES
1265	/* 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
1267	* improperly inserted.
1268	*/
1269	abort();
1270	#endif
1271	return op;
1272	}
1273	if(!QUERY_FLAG(op,FLAG_REMOVED)) {
1274	dump_object(op);
1275	LOG(llevError,"Trying to insert (map) inserted object.\n%s\n", errmsg);
1276	return op;
1277	}
1278	if(op->more!=NULL) {
1279	/* The part may be on a different map. */
1280		1519
1281	object *more = op->more;
1282
1283	/* We really need the caller to normalize coordinates - if
1284	* 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
1286	* is clear wrong do we normalize it.
1287	*/
1288	if (OUT_OF_REAL_MAP(more->map, more->x, more->y)) {
1289	more->map = get_map_from_coord(m, &more->x, &more->y);
1290	} else if (!more->map) {
1291	/* For backwards compatibility - when not dealing with tiled maps,
1292	* more->map should always point to the parent.
1293	*/
1294	more->map = m;
1295	}
1296
1297	if (insert_ob_in_map(more, more->map, originator, flag) == NULL) {
1298	if ( ! op->head)
1299	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");
1300	return NULL;
1301	}
1302	}
1303	CLEAR_FLAG(op,FLAG_REMOVED);
1304
1305	/* 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
1307	* need extra work
1308	*/
1309	op->map=get_map_from_coord(m, &op->x, &op->y);
1310	x = op->x;
1311	y = op->y;
1312
1313	/* this has to be done after we translate the coordinates.
1314	*/
1315	if(op->nrof && !(flag & INS_NO_MERGE)) {
1316	for(tmp=GET_MAP_OB(op->map,x,y);tmp!=NULL;tmp=tmp->above)
1317	if (CAN_MERGE(op,tmp)) {
1318	op->nrof+=tmp->nrof;
1319	remove_ob(tmp);
1320	free_object(tmp);
1321	}
1322	}
1323
1324	CLEAR_FLAG(op,FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */
1325	CLEAR_FLAG(op, FLAG_INV_LOCKED);
1326	if (!QUERY_FLAG(op, FLAG_ALIVE))
1327	CLEAR_FLAG(op, FLAG_NO_STEAL);
1328
1329	if (flag & INS_BELOW_ORIGINATOR) {
1330	if (originator->map != op->map || originator->x != op->x ||
1331	originator->y != op->y) {
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	/*
1346	* If there are multiple objects on this space, we do some trickier handling.
1347	* We've already dealt with merging if appropriate.
1348	* Generally, we want to put the new object on top. But if
1349	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last
1350	* floor, we want to insert above that and no further.
1351	* Also, if there are spell objects on this space, we stop processing
1352	* once we get to them. This reduces the need to traverse over all of
1353	* them when adding another one - this saves quite a bit of cpu time
1354	* when lots of spells are cast in one area. Currently, it is presumed
1355	* that flying non pickable objects are spell objects.
1356	*/
1357
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;
1371	}
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 */
1399	if (flag & INS_MAP_LOAD)
1400	top = GET_MAP_TOP(op->map,op->x,op->y);
1401	if (flag & INS_ABOVE_FLOOR_ONLY) top = floor;
1402
1403	/* Top is the object that our object (op) is going to get inserted above.
1404	*/
1405
1406	/* First object on this space */
1407	if (!top) {
1408	op->above = GET_MAP_OB(op->map, op->x, op->y);
1409	if (op->above) op->above->below = op;
1410	op->below = NULL;
1411	SET_MAP_OB(op->map, op->x, op->y, op);
1412	} else { /* get inserted into the stack above top */
1413	op->above = top->above;
1414	if (op->above) op->above->below = op;
1415	op->below = top;
1416	top->above = op;
1417	}
1418	if (op->above==NULL)
1419	SET_MAP_TOP(op->map,op->x, op->y, op);
1420	} /* else not INS_BELOW_ORIGINATOR */
1421
1422	if(op->type==PLAYER)
1423	op->contr->do_los=1;
1424
1425	/* 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.
1427	*/
1428	if (!(flag & INS_MAP_LOAD))
1429	for(tmp=floor?floor:GET_MAP_OB(op->map,op->x,op->y);tmp!=NULL;tmp=tmp->above) {
1430	if (tmp->type == PLAYER)
1431	tmp->contr->socket.update_look=1;
1432	}
1433
1434	/* If this object glows, it may affect lighting conditions that are
1435	* 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
1437	* on the map will get recalculated. The players could very well
1438	* be far away from this change and not affected in any way -
1439	* this should get redone to only look for players within range,
1440	* or just updating the P_NEED_UPDATE for spaces within this area
1441	* of effect may be sufficient.
1442	*/
1443	if(MAP_DARKNESS(op->map) && (op->glow_radius != 0))
1444	update_all_los(op->map, op->x, op->y);
1445
1446
1447	/* updates flags (blocked, alive, no magic, etc) for this map space */
1448	update_object(op,UP_OBJ_INSERT);
1449
1450
1451	/* 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.
1453	*
1454	* check_move_on() must be after this because code called from
1455	* check_move_on() depends on correct map flags (so functions like
1456	* blocked() and wall() work properly), and these flags are updated by
1457	* update_object().
1458	*/
1459
1460	/* 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) {
1463	if (check_move_on(op, originator))
1464	return NULL;
1465
1466	/* If we are a multi part object, lets work our way through the check	1520	/* If we are a multi part object, lets work our way through the check
1467	* walk on's.	1521	* walk on's.
1468	*/	1522	*/
1469	for (tmp=op->more; tmp!=NULL; tmp=tmp->more)	1523	for (tmp = op->more; tmp != NULL; tmp = tmp->more)
1470	if (check_move_on (tmp, originator))	1524	if (check_move_on (tmp, originator))
1471	return NULL;	1525	return NULL;
1472	}	1526	}
		1527
1473	return op;	1528	return op;
1474	}	1529	}
1475		1530
1476	/* this function inserts an object in the map, but if it	1531	/* 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.	1532	* 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.	1533	* op is the object to insert it under: supplies x and the map.
1479	*/	1534	*/
		1535	void
1480	void replace_insert_ob_in_map(const char *arch_string, object *op) {	1536	replace_insert_ob_in_map (const char *arch_string, object *op)
		1537	{
1481	object *tmp;	1538	object *
1482	object *tmp1;	1539	tmp;
		1540	object *
		1541	tmp1;
1483		1542
1484	/* first search for itself and remove any old instances */	1543	/* first search for itself and remove any old instances */
1485		1544
1486	for(tmp=GET_MAP_OB(op->map,op->x,op->y); tmp!=NULL; tmp=tmp->above) {	1545	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)
1487	if(!strcmp(tmp->arch->name,arch_string)) /* same archetype */ {	1546	if (!strcmp (tmp->arch->name, arch_string)) /* same archetype */
1488	remove_ob(tmp);	1547	tmp->destroy ();
1489	free_object(tmp);
1490	}
1491	}
1492		1548
1493	tmp1=arch_to_object(find_archetype(arch_string));	1549	tmp1 = arch_to_object (archetype::find (arch_string));
1494		1550
1495		1551	tmp1->x = op->x;
1496	tmp1->x = op->x; tmp1->y = op->y;	1552	tmp1->y = op->y;
1497	insert_ob_in_map(tmp1,op->map,op,0);	1553	insert_ob_in_map (tmp1, op->map, op, 0);
1498	}	1554	}
1499		1555
1500	/*	1556	/*
1501	* get_split_ob(ob,nr) splits up ob into two parts. The part which	1557	* 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	1558	* is returned contains nr objects, and the remaining parts contains
1503	* the rest (or is removed and freed if that number is 0).	1559	* the rest (or is removed and freed if that number is 0).
1504	* On failure, NULL is returned, and the reason put into the	1560	* On failure, NULL is returned, and the reason put into the
1505	* global static errmsg array.	1561	* global static errmsg array.
1506	*/	1562	*/
1507		1563
		1564	object *
1508	object *get_split_ob(object *orig_ob, uint32 nr) {	1565	get_split_ob (object *orig_ob, uint32 nr)
		1566	{
1509	object *newob;	1567	object *newob;
1510	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);	1568	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);
1511		1569
1512	if(orig_ob->nrof<nr) {	1570	if (orig_ob->nrof < nr)
1513	sprintf(errmsg,"There are only %d %ss.",	1571	{
1514	orig_ob->nrof?orig_ob->nrof:1, &orig_ob->name);	1572	sprintf (errmsg, "There are only %d %ss.", orig_ob->nrof ? orig_ob->nrof : 1, &orig_ob->name);
1515	return NULL;	1573	return NULL;
1516	}	1574	}
		1575
1517	newob = object_create_clone(orig_ob);	1576	newob = object_create_clone (orig_ob);
		1577
1518	if((orig_ob->nrof-=nr)<1) {	1578	if ((orig_ob->nrof -= nr) < 1)
1519	if ( ! is_removed)	1579	orig_ob->destroy (1);
1520	remove_ob(orig_ob);
1521	free_object2(orig_ob, 1);
1522	}
1523	else if ( ! is_removed) {	1580	else if (!is_removed)
		1581	{
1524	if(orig_ob->env!=NULL)	1582	if (orig_ob->env != NULL)
1525	sub_weight (orig_ob->env,orig_ob->weight*nr);	1583	sub_weight (orig_ob->env, orig_ob->weight * nr);
1526	if (orig_ob->env == NULL && orig_ob->map->in_memory!=MAP_IN_MEMORY) {	1584	if (orig_ob->env == NULL && orig_ob->map->in_memory != MAP_IN_MEMORY)
		1585	{
1527	strcpy(errmsg, "Tried to split object whose map is not in memory.");	1586	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");	1587	LOG (llevDebug, "Error, Tried to split object whose map is not in memory.\n");
1530	return NULL;	1588	return NULL;
1531	}	1589	}
1532	}	1590	}
		1591
1533	newob->nrof=nr;	1592	newob->nrof = nr;
1534		1593
1535	return newob;	1594	return newob;
1536	}	1595	}
1537		1596
1538	/*	1597	/*
1539	* decrease_ob_nr(object, number) decreases a specified number from	1598	* decrease_ob_nr(object, number) decreases a specified number from
1540	* the amount of an object. If the amount reaches 0, the object	1599	* the amount of an object. If the amount reaches 0, the object
1541	* is subsequently removed and freed.	1600	* is subsequently removed and freed.
1542	*	1601	*
1543	* Return value: 'op' if something is left, NULL if the amount reached 0	1602	* Return value: 'op' if something is left, NULL if the amount reached 0
1544	*/	1603	*/
1545		1604
		1605	object *
1546	object *decrease_ob_nr (object *op, uint32 i)	1606	decrease_ob_nr (object *op, uint32 i)
1547	{	1607	{
1548	object *tmp;	1608	object *tmp;
1549	player *pl;	1609	player *pl;
1550		1610
1551	if (i == 0) /* objects with op->nrof require this check */	1611	if (i == 0) /* objects with op->nrof require this check */
1552	return op;	1612	return op;
1553		1613
1554	if (i > op->nrof)	1614	if (i > op->nrof)
1555	i = op->nrof;	1615	i = op->nrof;
1556		1616
1557	if (QUERY_FLAG (op, FLAG_REMOVED))	1617	if (QUERY_FLAG (op, FLAG_REMOVED))
		1618	op->nrof -= i;
		1619	else if (op->env)
		1620	{
		1621	/* is this object in the players inventory, or sub container
		1622	* therein?
		1623	*/
		1624	tmp = is_player_inv (op->env);
		1625	/* nope. Is this a container the player has opened?
		1626	* If so, set tmp to that player.
		1627	* IMO, searching through all the players will mostly
		1628	* likely be quicker than following op->env to the map,
		1629	* and then searching the map for a player.
		1630	*/
		1631	if (!tmp)
		1632	{
		1633	for (pl = first_player; pl; pl = pl->next)
		1634	if (pl->ob->container == op->env)
		1635	{
		1636	tmp = pl->ob;
		1637	break;
		1638	}
		1639	}
		1640
		1641	if (i < op->nrof)
		1642	{
		1643	sub_weight (op->env, op->weight * i);
		1644	op->nrof -= i;
		1645	if (tmp)
		1646	esrv_send_item (tmp, op);
		1647	}
		1648	else
		1649	{
		1650	op->remove ();
		1651	op->nrof = 0;
		1652	if (tmp)
		1653	esrv_del_item (tmp->contr, op->count);
		1654	}
1558	{	1655	}
		1656	else
		1657	{
		1658	object *above = op->above;
		1659
		1660	if (i < op->nrof)
1559	op->nrof -= i;	1661	op->nrof -= i;
1560	}	1662	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	}	1663	{
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);	1664	op->remove ();
1588	op->nrof = 0;	1665	op->nrof = 0;
1589	if (tmp) {
1590	esrv_del_item(tmp->contr, op->count);
1591	}	1666	}
1592	}
1593	}
1594	else
1595	{
1596	object *above = op->above;
1597		1667
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 */	1668	/* Since we just removed op, op->above is null */
1605	for (tmp = above; tmp != NULL; tmp = tmp->above)	1669	for (tmp = above; tmp; tmp = tmp->above)
1606	if (tmp->type == PLAYER) {	1670	if (tmp->type == PLAYER)
		1671	{
1607	if (op->nrof)	1672	if (op->nrof)
1608	esrv_send_item(tmp, op);	1673	esrv_send_item (tmp, op);
1609	else	1674	else
1610	esrv_del_item(tmp->contr, op->count);	1675	esrv_del_item (tmp->contr, op->count);
1611	}	1676	}
1612	}	1677	}
1613		1678
1614	if (op->nrof) {	1679	if (op->nrof)
1615	return op;	1680	return op;
1616	} else {	1681	else
1617	free_object (op);	1682	{
		1683	op->destroy ();
1618	return NULL;	1684	return 0;
1619	}	1685	}
1620	}	1686	}
1621		1687
1622	/*	1688	/*
1623	* add_weight(object, weight) adds the specified weight to an object,	1689	* add_weight(object, weight) adds the specified weight to an object,
1624	* and also updates how much the environment(s) is/are carrying.	1690	* and also updates how much the environment(s) is/are carrying.
1625	*/	1691	*/
1626		1692
		1693	void
1627	void add_weight (object *op, signed long weight) {	1694	add_weight (object *op, signed long weight)
		1695	{
1628	while (op!=NULL) {	1696	while (op != NULL)
		1697	{
1629	if (op->type == CONTAINER) {	1698	if (op->type == CONTAINER)
1630	weight=(signed long)(weight*(100-op->stats.Str)/100);	1699	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1631	}	1700
1632	op->carrying+=weight;	1701	op->carrying += weight;
1633	op=op->env;	1702	op = op->env;
1634	}	1703	}
1635	}	1704	}
1636		1705
		1706	object *
		1707	insert_ob_in_ob (object *op, object *where)
		1708	{
		1709	if (!where)
		1710	{
		1711	char *dump = dump_object (op);
		1712	LOG (llevError, "Trying to put object in NULL.\n%s\n", dump);
		1713	free (dump);
		1714	return op;
		1715	}
		1716
		1717	if (where->head)
		1718	{
		1719	LOG (llevDebug, "Warning: Tried to insert object into wrong part of multipart object.\n");
		1720	where = where->head;
		1721	}
		1722
		1723	return where->insert (op);
		1724	}
		1725
1637	/*	1726	/*
1638	* insert_ob_in_ob(op,environment):	1727	* env->insert (op)
1639	* This function inserts the object op in the linked list	1728	* This function inserts the object op in the linked list
1640	* inside the object environment.	1729	* inside the object environment.
1641	*	1730	*
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	1731	* The function returns now pointer to inserted item, and return value can
1648	* be != op, if items are merged. -Tero	1732	* be != op, if items are merged. -Tero
1649	*/	1733	*/
1650		1734
1651	object *insert_ob_in_ob(object *op,object *where) {	1735	object *
		1736	object::insert (object *op)
		1737	{
1652	object *tmp, *otmp;	1738	object *tmp, *otmp;
1653		1739
1654	if(!QUERY_FLAG(op,FLAG_REMOVED)) {	1740	if (!QUERY_FLAG (op, FLAG_REMOVED))
1655	dump_object(op);	1741	op->remove ();
1656	LOG(llevError,"Trying to insert (ob) inserted object.\n%s\n", errmsg);	1742
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) {	1743	if (op->more)
		1744	{
1670	LOG(llevError, "Tried to insert multipart object %s (%d)\n",	1745	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);
1671	&op->name, op->count);
1672	return op;	1746	return op;
1673	}	1747	}
		1748
1674	CLEAR_FLAG(op, FLAG_OBJ_ORIGINAL);	1749	CLEAR_FLAG (op, FLAG_OBJ_ORIGINAL);
1675	CLEAR_FLAG(op, FLAG_REMOVED);	1750	CLEAR_FLAG (op, FLAG_REMOVED);
1676	if(op->nrof) {	1751	if (op->nrof)
		1752	{
1677	for(tmp=where->inv;tmp!=NULL;tmp=tmp->below)	1753	for (tmp = inv; tmp != NULL; tmp = tmp->below)
1678	if ( CAN_MERGE(tmp,op) ) {	1754	if (object::can_merge (tmp, op))
		1755	{
1679	/* return the original object and remove inserted object	1756	/* return the original object and remove inserted object
1680	(client needs the original object) */	1757	(client needs the original object) */
1681	tmp->nrof += op->nrof;	1758	tmp->nrof += op->nrof;
1682	/* Weight handling gets pretty funky. Since we are adding to	1759	/* Weight handling gets pretty funky. Since we are adding to
1683	* tmp->nrof, we need to increase the weight.	1760	* tmp->nrof, we need to increase the weight.
1684	*/	1761	*/
1685	add_weight (where, op->weight*op->nrof);	1762	add_weight (this, op->weight * op->nrof);
1686	SET_FLAG(op, FLAG_REMOVED);	1763	SET_FLAG (op, FLAG_REMOVED);
1687	free_object(op); /* free the inserted object */	1764	op->destroy (); /* free the inserted object */
1688	op = tmp;	1765	op = tmp;
1689	remove_ob (op); /* and fix old object's links */	1766	op->remove (); /* and fix old object's links */
1690	CLEAR_FLAG(op, FLAG_REMOVED);	1767	CLEAR_FLAG (op, FLAG_REMOVED);
1691	break;	1768	break;
1692	}	1769	}
1693		1770
1694	/* I assume combined objects have no inventory	1771	/* I assume combined objects have no inventory
1695	* We add the weight - this object could have just been removed	1772	* We add the weight - this object could have just been removed
1696	* (if it was possible to merge). calling remove_ob will subtract	1773	* (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	1774	* the weight, so we need to add it in again, since we actually do
1698	* the linking below	1775	* the linking below
1699	*/	1776	*/
1700	add_weight (where, op->weight*op->nrof);	1777	add_weight (this, op->weight * op->nrof);
		1778	}
1701	} else	1779	else
1702	add_weight (where, (op->weight+op->carrying));	1780	add_weight (this, (op->weight + op->carrying));
1703		1781
1704	otmp=is_player_inv(where);	1782	otmp = is_player_inv (this);
1705	if (otmp&&otmp->contr!=NULL) {	1783	if (otmp && otmp->contr)
1706	if (!QUERY_FLAG(otmp,FLAG_NO_FIX_PLAYER))	1784	if (!QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1707	fix_player(otmp);	1785	fix_player (otmp);
1708	}
1709		1786
1710	op->map=NULL;	1787	op->map = NULL;
1711	op->env=where;	1788	op->env = this;
1712	op->above=NULL;	1789	op->above = NULL;
1713	op->below=NULL;	1790	op->below = NULL;
1714	op->x=0,op->y=0;	1791	op->x = 0, op->y = 0;
1715		1792
1716	/* reset the light list and los of the players on the map */	1793	/* reset the light list and los of the players on the map */
1717	if((op->glow_radius!=0)&&where->map)	1794	if ((op->glow_radius != 0) && map)
1718	{	1795	{
1719	#ifdef DEBUG_LIGHTS	1796	#ifdef DEBUG_LIGHTS
1720	LOG(llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n",	1797	LOG (llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n", op->name);
1721	op->name);
1722	#endif /* DEBUG_LIGHTS */	1798	#endif /* DEBUG_LIGHTS */
1723	if (MAP_DARKNESS(where->map)) update_all_los(where->map, where->x, where->y);	1799	if (MAP_DARKNESS (map))
		1800	update_all_los (map, x, y);
1724	}	1801	}
1725		1802
1726	/* Client has no idea of ordering so lets not bother ordering it here.	1803	/* Client has no idea of ordering so lets not bother ordering it here.
1727	* It sure simplifies this function...	1804	* It sure simplifies this function...
1728	*/	1805	*/
1729	if (where->inv==NULL)	1806	if (!inv)
1730	where->inv=op;	1807	inv = op;
1731	else {	1808	else
		1809	{
1732	op->below = where->inv;	1810	op->below = inv;
1733	op->below->above = op;	1811	op->below->above = op;
1734	where->inv = op;	1812	inv = op;
1735	}	1813	}
		1814
1736	return op;	1815	return op;
1737	}	1816	}
1738		1817
1739	/*	1818	/*
1740	* Checks if any objects has a move_type that matches objects	1819	* Checks if any objects has a move_type that matches objects
…		…
1755	* MSW 2001-07-08: Check all objects on space, not just those below	1834	* 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	1835	* object being inserted. insert_ob_in_map may not put new objects
1757	* on top.	1836	* on top.
1758	*/	1837	*/
1759		1838
		1839	int
1760	int check_move_on (object *op, object *originator)	1840	check_move_on (object *op, object *originator)
1761	{	1841	{
1762	object *tmp;	1842	object *tmp;
1763	tag_t tag;
1764	mapstruct *m=op->map;	1843	maptile *m = op->map;
1765	int x=op->x, y=op->y;	1844	int x = op->x, y = op->y;
		1845
1766	MoveType move_on, move_slow, move_block;	1846	MoveType move_on, move_slow, move_block;
1767		1847
1768	if(QUERY_FLAG(op,FLAG_NO_APPLY))	1848	if (QUERY_FLAG (op, FLAG_NO_APPLY))
1769	return 0;	1849	return 0;
1770		1850
1771	tag = op->count;
1772
1773	move_on = GET_MAP_MOVE_ON(op->map, op->x, op->y);	1851	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);	1852	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);	1853	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);
1776		1854
1777	/* if nothing on this space will slow op down or be applied,	1855	/* 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	1856	* 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	1857	* is set, as lots of objects don't have it set - we treat that
1780	* as walking.	1858	* as walking.
1781	*/	1859	*/
1782	if (op->move_type && !(op->move_type & move_on) && !(op->move_type & move_slow))	1860	if (op->move_type && !(op->move_type & move_on) && !(op->move_type & move_slow))
1783	return 0;	1861	return 0;
1784		1862
1785	/* This is basically inverse logic of that below - basically,	1863	/* This is basically inverse logic of that below - basically,
1786	* if the object can avoid the move on or slow move, they do so,	1864	* 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	1865	* but can't do it if the alternate movement they are using is
1788	* blocked. Logic on this seems confusing, but does seem correct.	1866	* blocked. Logic on this seems confusing, but does seem correct.
1789	*/	1867	*/
1790	if ((op->move_type & ~move_on & ~move_block) != 0 &&	1868	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;	1869	return 0;
1792		1870
1793	/* The objects have to be checked from top to bottom.	1871	/* The objects have to be checked from top to bottom.
1794	* Hence, we first go to the top:	1872	* Hence, we first go to the top:
1795	*/	1873	*/
1796		1874
1797	for (tmp=GET_MAP_OB(op->map, op->x, op->y); tmp!=NULL &&	1875	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL && tmp->above != NULL; tmp = tmp->above)
1798	tmp->above!=NULL; tmp=tmp->above) {	1876	{
1799	/* Trim the search when we find the first other spell effect	1877	/* Trim the search when we find the first other spell effect
1800	* this helps performance so that if a space has 50 spell objects,	1878	* this helps performance so that if a space has 50 spell objects,
1801	* we don't need to check all of them.	1879	* we don't need to check all of them.
1802	*/	1880	*/
1803	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG(tmp, FLAG_NO_PICK)) break;	1881	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG (tmp, FLAG_NO_PICK))
		1882	break;
		1883	}
		1884
		1885	for (; tmp; tmp = tmp->below)
1804	}	1886	{
1805	for(;tmp!=NULL; tmp=tmp->below) {	1887	if (tmp == op)
1806	if (tmp == op) continue; /* Can't apply yourself */	1888	continue; /* Can't apply yourself */
1807		1889
1808	/* Check to see if one of the movement types should be slowed down.	1890	/* 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	1891	* Second check makes sure that the movement types not being slowed
1810	* (~slow_move) is not blocked on this space - just because the	1892	* (~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	1893	* 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.	1894	* swim on that space, can't use it to avoid the penalty.
1813	*/	1895	*/
1814	if (!QUERY_FLAG(op, FLAG_WIZPASS)) {	1896	if (!QUERY_FLAG (op, FLAG_WIZPASS))
		1897	{
1815	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||	1898	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)) {	1899	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))
		1900	{
1818		1901
1819	float diff;	1902	float
1820
1821	diff = tmp->move_slow_penalty*FABS(op->speed);	1903	diff = tmp->move_slow_penalty * FABS (op->speed);
		1904
1822	if (op->type == PLAYER) {	1905	if (op->type == PLAYER)
1823	if ((QUERY_FLAG(tmp, FLAG_IS_HILLY) && find_skill_by_number(op, SK_CLIMBING)) ||	1906	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))) {	1907	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))
1825	diff /= 4.0;	1908	diff /= 4.0;
1826	}	1909
1827	}
1828	op->speed_left -= diff;	1910	op->speed_left -= diff;
1829	}	1911	}
1830	}	1912	}
1831		1913
1832	/* Basically same logic as above, except now for actual apply. */	1914	/* Basically same logic as above, except now for actual apply. */
1833	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||	1915	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)) {	1916	((op->move_type & tmp->move_on) && (op->move_type & ~tmp->move_on & ~tmp->move_block) == 0))
1836		1917	{
1837	move_apply(tmp, op, originator);	1918	move_apply (tmp, op, originator);
		1919
1838	if (was_destroyed (op, tag))	1920	if (op->destroyed ())
1839	return 1;	1921	return 1;
1840		1922
1841	/* what the person/creature stepped onto has moved the object	1923	/* what the person/creature stepped onto has moved the object
1842	* someplace new. Don't process any further - if we did,	1924	* someplace new. Don't process any further - if we did,
1843	* have a feeling strange problems would result.	1925	* have a feeling strange problems would result.
1844	*/	1926	*/
1845	if (op->map != m || op->x != x || op->y != y) return 0;	1927	if (op->map != m || op->x != x || op->y != y)
		1928	return 0;
1846	}	1929	}
1847	}	1930	}
		1931
1848	return 0;	1932	return 0;
1849	}	1933	}
1850		1934
1851	/*	1935	/*
1852	* present_arch(arch, map, x, y) searches for any objects with	1936	* present_arch(arch, map, x, y) searches for any objects with
1853	* a matching archetype at the given map and coordinates.	1937	* a matching archetype at the given map and coordinates.
1854	* The first matching object is returned, or NULL if none.	1938	* The first matching object is returned, or NULL if none.
1855	*/	1939	*/
1856		1940
		1941	object *
1857	object *present_arch(const archetype *at, mapstruct *m, int x, int y) {	1942	present_arch (const archetype *at, maptile *m, int x, int y)
		1943	{
1858	object *tmp;	1944	object *
		1945	tmp;
		1946
1859	if(m==NULL || out_of_map(m,x,y)) {	1947	if (m == NULL || out_of_map (m, x, y))
		1948	{
1860	LOG(llevError,"Present_arch called outside map.\n");	1949	LOG (llevError, "Present_arch called outside map.\n");
1861	return NULL;	1950	return NULL;
1862	}	1951	}
1863	for(tmp=GET_MAP_OB(m,x,y); tmp != NULL; tmp = tmp->above)	1952	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)
1864	if(tmp->arch == at)	1953	if (tmp->arch == at)
1865	return tmp;	1954	return tmp;
1866	return NULL;	1955	return NULL;
1867	}	1956	}
1868		1957
1869	/*	1958	/*
1870	* present(type, map, x, y) searches for any objects with	1959	* present(type, map, x, y) searches for any objects with
1871	* a matching type variable at the given map and coordinates.	1960	* a matching type variable at the given map and coordinates.
1872	* The first matching object is returned, or NULL if none.	1961	* The first matching object is returned, or NULL if none.
1873	*/	1962	*/
1874		1963
		1964	object *
1875	object *present(unsigned char type,mapstruct *m, int x,int y) {	1965	present (unsigned char type, maptile *m, int x, int y)
		1966	{
1876	object *tmp;	1967	object *
		1968	tmp;
		1969
1877	if(out_of_map(m,x,y)) {	1970	if (out_of_map (m, x, y))
		1971	{
1878	LOG(llevError,"Present called outside map.\n");	1972	LOG (llevError, "Present called outside map.\n");
1879	return NULL;	1973	return NULL;
1880	}	1974	}
1881	for(tmp=GET_MAP_OB(m,x,y);tmp!=NULL;tmp=tmp->above)	1975	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)
1882	if(tmp->type==type)	1976	if (tmp->type == type)
1883	return tmp;	1977	return tmp;
1884	return NULL;	1978	return NULL;
1885	}	1979	}
1886		1980
1887	/*	1981	/*
1888	* present_in_ob(type, object) searches for any objects with	1982	* present_in_ob(type, object) searches for any objects with
1889	* a matching type variable in the inventory of the given object.	1983	* a matching type variable in the inventory of the given object.
1890	* The first matching object is returned, or NULL if none.	1984	* The first matching object is returned, or NULL if none.
1891	*/	1985	*/
1892		1986
		1987	object *
1893	object *present_in_ob(unsigned char type, const object *op) {	1988	present_in_ob (unsigned char type, const object *op)
		1989	{
1894	object *tmp;	1990	object *
		1991	tmp;
		1992
1895	for(tmp=op->inv;tmp!=NULL;tmp=tmp->below)	1993	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)
1896	if(tmp->type==type)	1994	if (tmp->type == type)
1897	return tmp;	1995	return tmp;
1898	return NULL;	1996	return NULL;
1899	}	1997	}
1900		1998
1901	/*	1999	/*
…		…
1911	* the object name, not the archetype name. this is so that the	2009	* 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	2010	* spell code can use one object type (force), but change it's name
1913	* to be unique.	2011	* to be unique.
1914	*/	2012	*/
1915		2013
		2014	object *
1916	object *present_in_ob_by_name(int type, const char *str, const object *op) {	2015	present_in_ob_by_name (int type, const char *str, const object *op)
		2016	{
1917	object *tmp;	2017	object *
		2018	tmp;
1918		2019
1919	for(tmp=op->inv; tmp!=NULL; tmp=tmp->below) {	2020	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)
		2021	{
1920	if ((type==-1 || tmp->type==type) && (!strcmp(str, tmp->name)))	2022	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))
1921	return tmp;	2023	return tmp;
1922	}	2024	}
1923	return NULL;	2025	return NULL;
1924	}	2026	}
1925		2027
1926	/*	2028	/*
1927	* present_arch_in_ob(archetype, object) searches for any objects with	2029	* present_arch_in_ob(archetype, object) searches for any objects with
1928	* a matching archetype in the inventory of the given object.	2030	* a matching archetype in the inventory of the given object.
1929	* The first matching object is returned, or NULL if none.	2031	* The first matching object is returned, or NULL if none.
1930	*/	2032	*/
1931		2033
		2034	object *
1932	object *present_arch_in_ob(const archetype *at, const object *op) {	2035	present_arch_in_ob (const archetype *at, const object *op)
		2036	{
1933	object *tmp;	2037	object *
		2038	tmp;
		2039
1934	for(tmp=op->inv;tmp!=NULL;tmp=tmp->below)	2040	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)
1935	if( tmp->arch == at)	2041	if (tmp->arch == at)
1936	return tmp;	2042	return tmp;
1937	return NULL;	2043	return NULL;
1938	}	2044	}
1939		2045
1940	/*	2046	/*
1941	* activate recursively a flag on an object inventory	2047	* activate recursively a flag on an object inventory
1942	*/	2048	*/
		2049	void
1943	void flag_inv(object*op, int flag){	2050	flag_inv (object *op, int flag)
		2051	{
1944	object *tmp;	2052	object *
		2053	tmp;
		2054
1945	if(op->inv)	2055	if (op->inv)
1946	for(tmp = op->inv; tmp != NULL; tmp = tmp->below){	2056	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)
		2057	{
1947	SET_FLAG(tmp, flag);	2058	SET_FLAG (tmp, flag);
1948	flag_inv(tmp,flag);	2059	flag_inv (tmp, flag);
1949	}	2060	}
1950	}/*	2061	} /*
1951	* desactivate recursively a flag on an object inventory	2062	* desactivate recursively a flag on an object inventory
1952	*/	2063	*/
		2064	void
1953	void unflag_inv(object*op, int flag){	2065	unflag_inv (object *op, int flag)
		2066	{
1954	object *tmp;	2067	object *
		2068	tmp;
		2069
1955	if(op->inv)	2070	if (op->inv)
1956	for(tmp = op->inv; tmp != NULL; tmp = tmp->below){	2071	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)
		2072	{
1957	CLEAR_FLAG(tmp, flag);	2073	CLEAR_FLAG (tmp, flag);
1958	unflag_inv(tmp,flag);	2074	unflag_inv (tmp, flag);
1959	}	2075	}
1960	}	2076	}
1961		2077
1962	/*	2078	/*
1963	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in	2079	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in
1964	* all it's inventory (recursively).	2080	* all it's inventory (recursively).
1965	* If checksums are used, a player will get set_cheat called for	2081	* 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.	2082	* him/her-self and all object carried by a call to this function.
1967	*/	2083	*/
1968		2084
		2085	void
1969	void set_cheat(object *op) {	2086	set_cheat (object *op)
		2087	{
1970	SET_FLAG(op, FLAG_WAS_WIZ);	2088	SET_FLAG (op, FLAG_WAS_WIZ);
1971	flag_inv(op, FLAG_WAS_WIZ);	2089	flag_inv (op, FLAG_WAS_WIZ);
1972	}	2090	}
1973		2091
1974	/*	2092	/*
1975	* find_free_spot(object, map, x, y, start, stop) will search for	2093	* 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	2094	* a spot at the given map and coordinates which will be able to contain
…		…
1991	* to know if the space in question will block the object. We can't use	2109	* 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	2110	* the archetype because that isn't correct if the monster has been
1993	* customized, changed states, etc.	2111	* customized, changed states, etc.
1994	*/	2112	*/
1995		2113
		2114	int
1996	int find_free_spot(const object *ob, mapstruct *m,int x,int y,int start,int stop) {	2115	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)
		2116	{
		2117	int
		2118	i,
1997	int i,index=0, flag;	2119	index = 0, flag;
		2120	static int
1998	static int altern[SIZEOFFREE];	2121	altern[SIZEOFFREE];
1999		2122
2000	for(i=start;i<stop;i++) {	2123	for (i = start; i < stop; i++)
		2124	{
2001	flag = ob_blocked(ob,m,x+freearr_x[i],y+freearr_y[i]);	2125	flag = ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]);
2002	if(!flag)	2126	if (!flag)
2003	altern[index++]=i;	2127	altern[index++] = i;
2004		2128
2005	/* Basically, if we find a wall on a space, we cut down the search size.	2129	/* 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.	2130	* 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 -	2131	* 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	2132	* 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	2133	* spaces in all the other directions, this will reduce the search space
2010	* to only the spaces immediately surrounding the target area, and	2134	* to only the spaces immediately surrounding the target area, and
2011	* won't look 2 spaces south of the target space.	2135	* won't look 2 spaces south of the target space.
2012	*/	2136	*/
2013	else if ((flag & AB_NO_PASS) && maxfree[i]<stop)	2137	else if ((flag & AB_NO_PASS) && maxfree[i] < stop)
2014	stop=maxfree[i];	2138	stop = maxfree[i];
2015	}	2139	}
2016	if(!index) return -1;	2140	if (!index)
		2141	return -1;
2017	return altern[RANDOM()%index];	2142	return altern[RANDOM () % index];
2018	}	2143	}
2019		2144
2020	/*	2145	/*
2021	* find_first_free_spot(archetype, mapstruct, x, y) works like	2146	* find_first_free_spot(archetype, maptile, x, y) works like
2022	* find_free_spot(), but it will search max number of squares.	2147	* find_free_spot(), but it will search max number of squares.
2023	* But it will return the first available spot, not a random choice.	2148	* 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.	2149	* Changed 0.93.2: Have it return -1 if there is no free spot available.
2025	*/	2150	*/
2026		2151
		2152	int
2027	int find_first_free_spot(const object *ob, mapstruct *m,int x,int y) {	2153	find_first_free_spot (const object *ob, maptile *m, int x, int y)
		2154	{
		2155	int
2028	int i;	2156	i;
		2157
2029	for(i=0;i<SIZEOFFREE;i++) {	2158	for (i = 0; i < SIZEOFFREE; i++)
		2159	{
2030	if(!ob_blocked(ob,m,x+freearr_x[i],y+freearr_y[i]))	2160	if (!ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]))
2031	return i;	2161	return i;
2032	}	2162	}
2033	return -1;	2163	return -1;
2034	}	2164	}
2035		2165
2036	/*	2166	/*
2037	* The function permute(arr, begin, end) randomly reorders the array	2167	* The function permute(arr, begin, end) randomly reorders the array
2038	* arr[begin..end-1].	2168	* arr[begin..end-1].
2039	*/	2169	*/
		2170	static void
2040	static void permute(int *arr, int begin, int end)	2171	permute (int *arr, int begin, int end)
2041	{	2172	{
2042	int i, j, tmp, len;	2173	int
		2174	i,
		2175	j,
		2176	tmp,
		2177	len;
2043		2178
2044	len = end-begin;	2179	len = end - begin;
2045	for(i = begin; i < end; i++)	2180	for (i = begin; i < end; i++)
2046	{	2181	{
2047	j = begin+RANDOM()%len;	2182	j = begin + RANDOM () % len;
2048		2183
2049	tmp = arr[i];	2184	tmp = arr[i];
2050	arr[i] = arr[j];	2185	arr[i] = arr[j];
2051	arr[j] = tmp;	2186	arr[j] = tmp;
2052	}	2187	}
2053	}	2188	}
2054		2189
2055	/* new function to make monster searching more efficient, and effective!	2190	/* new function to make monster searching more efficient, and effective!
2056	* This basically returns a randomized array (in the passed pointer) of	2191	* 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	2192	* 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	2193	* 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	2194	* 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.	2195	* the 3x3 area will be searched, just not in a predictable order.
2061	*/	2196	*/
		2197	void
2062	void get_search_arr(int *search_arr)	2198	get_search_arr (int *search_arr)
2063	{	2199	{
		2200	int
2064	int i;	2201	i;
2065		2202
2066	for(i = 0; i < SIZEOFFREE; i++)	2203	for (i = 0; i < SIZEOFFREE; i++)
2067	{	2204	{
2068	search_arr[i] = i;	2205	search_arr[i] = i;
2069	}	2206	}
2070		2207
2071	permute(search_arr, 1, SIZEOFFREE1+1);	2208	permute (search_arr, 1, SIZEOFFREE1 + 1);
2072	permute(search_arr, SIZEOFFREE1+1, SIZEOFFREE2+1);	2209	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);
2073	permute(search_arr, SIZEOFFREE2+1, SIZEOFFREE);	2210	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);
2074	}	2211	}
2075		2212
2076	/*	2213	/*
2077	* find_dir(map, x, y, exclude) will search some close squares in the	2214	* find_dir(map, x, y, exclude) will search some close squares in the
2078	* given map at the given coordinates for live objects.	2215	* given map at the given coordinates for live objects.
…		…
2084	* is actually want is going to try and move there. We need this info	2221	* 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	2222	* because we have to know what movement the thing looking to move
2086	* there is capable of.	2223	* there is capable of.
2087	*/	2224	*/
2088		2225
		2226	int
2089	int find_dir(mapstruct *m, int x, int y, object *exclude) {	2227	find_dir (maptile *m, int x, int y, object *exclude)
		2228	{
		2229	int
		2230	i,
2090	int i,max=SIZEOFFREE, mflags;	2231	max = SIZEOFFREE, mflags;
		2232
2091	sint16 nx, ny;	2233	sint16 nx, ny;
2092	object *tmp;	2234	object *
2093	mapstruct *mp;	2235	tmp;
		2236	maptile *
		2237	mp;
		2238
2094	MoveType blocked, move_type;	2239	MoveType blocked, move_type;
2095		2240
2096	if (exclude && exclude->head) {	2241	if (exclude && exclude->head)
		2242	{
2097	exclude = exclude->head;	2243	exclude = exclude->head;
2098	move_type = exclude->move_type;	2244	move_type = exclude->move_type;
2099	} else {	2245	}
		2246	else
		2247	{
2100	/* If we don't have anything, presume it can use all movement types. */	2248	/* If we don't have anything, presume it can use all movement types. */
2101	move_type=MOVE_ALL;	2249	move_type = MOVE_ALL;
		2250	}
		2251
		2252	for (i = 1; i < max; i++)
2102	}	2253	{
2103
2104	for(i=1;i<max;i++) {
2105	mp = m;	2254	mp = m;
2106	nx = x + freearr_x[i];	2255	nx = x + freearr_x[i];
2107	ny = y + freearr_y[i];	2256	ny = y + freearr_y[i];
2108		2257
2109	mflags = get_map_flags(m, &mp, nx, ny, &nx, &ny);	2258	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);
2110	if (mflags & P_OUT_OF_MAP) {	2259	if (mflags & P_OUT_OF_MAP)
		2260	{
2111	max = maxfree[i];	2261	max = maxfree[i];
		2262	}
2112	} else {	2263	else
		2264	{
2113	blocked = GET_MAP_MOVE_BLOCK(mp, nx, ny);	2265	blocked = GET_MAP_MOVE_BLOCK (mp, nx, ny);
2114		2266
2115	if ((move_type & blocked) == move_type) {	2267	if ((move_type & blocked) == move_type)
		2268	{
2116	max=maxfree[i];	2269	max = maxfree[i];
		2270	}
2117	} else if (mflags & P_IS_ALIVE) {	2271	else if (mflags & P_IS_ALIVE)
		2272	{
2118	for (tmp=GET_MAP_OB(mp,nx,ny); tmp!= NULL; tmp=tmp->above) {	2273	for (tmp = GET_MAP_OB (mp, nx, ny); tmp != NULL; tmp = tmp->above)
2119	if ((QUERY_FLAG(tmp,FLAG_MONSTER) || tmp->type==PLAYER) &&	2274	{
2120	(tmp != exclude ||(tmp->head && tmp->head != exclude))) {	2275	if ((QUERY_FLAG (tmp, FLAG_MONSTER) || tmp->type == PLAYER) && (tmp != exclude || (tmp->head && tmp->head != exclude)))
		2276	{
2121	break;	2277	break;
2122	}	2278	}
2123	}	2279	}
2124	if(tmp) {	2280	if (tmp)
		2281	{
2125	return freedir[i];	2282	return freedir[i];
2126	}	2283	}
2127	}	2284	}
2128	}	2285	}
2129	}	2286	}
2130	return 0;	2287	return 0;
2131	}	2288	}
2132		2289
2133	/*	2290	/*
2134	* distance(object 1, object 2) will return the square of the	2291	* distance(object 1, object 2) will return the square of the
2135	* distance between the two given objects.	2292	* distance between the two given objects.
2136	*/	2293	*/
2137		2294
		2295	int
2138	int distance(const object *ob1, const object *ob2) {	2296	distance (const object *ob1, const object *ob2)
		2297	{
2139	int i;	2298	int
2140	i= (ob1->x - ob2->x)*(ob1->x - ob2->x)+	2299	i;
2141	(ob1->y - ob2->y)*(ob1->y - ob2->y);	2300
		2301	i = (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);
2142	return i;	2302	return i;
2143	}	2303	}
2144		2304
2145	/*	2305	/*
2146	* find_dir_2(delta-x,delta-y) will return a direction in which	2306	* 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	2307	* an object which has subtracted the x and y coordinates of another
2148	* object, needs to travel toward it.	2308	* object, needs to travel toward it.
2149	*/	2309	*/
2150		2310
		2311	int
2151	int find_dir_2(int x, int y) {	2312	find_dir_2 (int x, int y)
		2313	{
2152	int q;	2314	int
		2315	q;
2153		2316
2154	if(y)	2317	if (y)
2155	q=x*100/y;	2318	q = x * 100 / y;
2156	else if (x)	2319	else if (x)
2157	q= -300*x;	2320	q = -300 * x;
2158	else	2321	else
2159	return 0;	2322	return 0;
2160		2323
2161	if(y>0) {	2324	if (y > 0)
		2325	{
2162	if(q < -242)	2326	if (q < -242)
2163	return 3 ;	2327	return 3;
2164	if (q < -41)	2328	if (q < -41)
2165	return 2 ;	2329	return 2;
2166	if (q < 41)	2330	if (q < 41)
2167	return 1 ;	2331	return 1;
2168	if (q < 242)	2332	if (q < 242)
2169	return 8 ;	2333	return 8;
2170	return 7 ;	2334	return 7;
2171	}	2335	}
2172		2336
2173	if (q < -242)	2337	if (q < -242)
2174	return 7 ;	2338	return 7;
2175	if (q < -41)	2339	if (q < -41)
2176	return 6 ;	2340	return 6;
2177	if (q < 41)	2341	if (q < 41)
2178	return 5 ;	2342	return 5;
2179	if (q < 242)	2343	if (q < 242)
2180	return 4 ;	2344	return 4;
2181		2345
2182	return 3 ;	2346	return 3;
2183	}	2347	}
2184		2348
2185	/*	2349	/*
2186	* absdir(int): Returns a number between 1 and 8, which represent	2350	* absdir(int): Returns a number between 1 and 8, which represent
2187	* the "absolute" direction of a number (it actually takes care of	2351	* the "absolute" direction of a number (it actually takes care of
2188	* "overflow" in previous calculations of a direction).	2352	* "overflow" in previous calculations of a direction).
2189	*/	2353	*/
2190		2354
		2355	int
2191	int absdir(int d) {	2356	absdir (int d)
2192	while(d<1) d+=8;	2357	{
2193	while(d>8) d-=8;	2358	while (d < 1)
		2359	d += 8;
		2360	while (d > 8)
		2361	d -= 8;
2194	return d;	2362	return d;
2195	}	2363	}
2196		2364
2197	/*	2365	/*
2198	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is	2366	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is
2199	* between two directions (which are expected to be absolute (see absdir())	2367	* between two directions (which are expected to be absolute (see absdir())
2200	*/	2368	*/
2201		2369
		2370	int
2202	int dirdiff(int dir1, int dir2) {	2371	dirdiff (int dir1, int dir2)
		2372	{
2203	int d;	2373	int
		2374	d;
		2375
2204	d = abs(dir1 - dir2);	2376	d = abs (dir1 - dir2);
2205	if(d>4)	2377	if (d > 4)
2206	d = 8 - d;	2378	d = 8 - d;
2207	return d;	2379	return d;
2208	}	2380	}
2209		2381
2210	/* peterm:	2382	/* peterm:
…		…
2215	* direction 4, 14, or 16 to get back to where we are.	2387	* 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	2388	* Moved from spell_util.c to object.c with the other related direction
2217	* functions.	2389	* functions.
2218	*/	2390	*/
2219		2391
		2392	int
2220	int reduction_dir[SIZEOFFREE][3] = {	2393	reduction_dir[SIZEOFFREE][3] = {
2221	{0,0,0}, /* 0 */	2394	{0, 0, 0}, /* 0 */
2222	{0,0,0}, /* 1 */	2395	{0, 0, 0}, /* 1 */
2223	{0,0,0}, /* 2 */	2396	{0, 0, 0}, /* 2 */
2224	{0,0,0}, /* 3 */	2397	{0, 0, 0}, /* 3 */
2225	{0,0,0}, /* 4 */	2398	{0, 0, 0}, /* 4 */
2226	{0,0,0}, /* 5 */	2399	{0, 0, 0}, /* 5 */
2227	{0,0,0}, /* 6 */	2400	{0, 0, 0}, /* 6 */
2228	{0,0,0}, /* 7 */	2401	{0, 0, 0}, /* 7 */
2229	{0,0,0}, /* 8 */	2402	{0, 0, 0}, /* 8 */
2230	{8,1,2}, /* 9 */	2403	{8, 1, 2}, /* 9 */
2231	{1,2,-1}, /* 10 */	2404	{1, 2, -1}, /* 10 */
2232	{2,10,12}, /* 11 */	2405	{2, 10, 12}, /* 11 */
2233	{2,3,-1}, /* 12 */	2406	{2, 3, -1}, /* 12 */
2234	{2,3,4}, /* 13 */	2407	{2, 3, 4}, /* 13 */
2235	{3,4,-1}, /* 14 */	2408	{3, 4, -1}, /* 14 */
2236	{4,14,16}, /* 15 */	2409	{4, 14, 16}, /* 15 */
2237	{5,4,-1}, /* 16 */	2410	{5, 4, -1}, /* 16 */
2238	{4,5,6}, /* 17 */	2411	{4, 5, 6}, /* 17 */
2239	{6,5,-1}, /* 18 */	2412	{6, 5, -1}, /* 18 */
2240	{6,20,18}, /* 19 */	2413	{6, 20, 18}, /* 19 */
2241	{7,6,-1}, /* 20 */	2414	{7, 6, -1}, /* 20 */
2242	{6,7,8}, /* 21 */	2415	{6, 7, 8}, /* 21 */
2243	{7,8,-1}, /* 22 */	2416	{7, 8, -1}, /* 22 */
2244	{8,22,24}, /* 23 */	2417	{8, 22, 24}, /* 23 */
2245	{8,1,-1}, /* 24 */	2418	{8, 1, -1}, /* 24 */
2246	{24,9,10}, /* 25 */	2419	{24, 9, 10}, /* 25 */
2247	{9,10,-1}, /* 26 */	2420	{9, 10, -1}, /* 26 */
2248	{10,11,-1}, /* 27 */	2421	{10, 11, -1}, /* 27 */
2249	{27,11,29}, /* 28 */	2422	{27, 11, 29}, /* 28 */
2250	{11,12,-1}, /* 29 */	2423	{11, 12, -1}, /* 29 */
2251	{12,13,-1}, /* 30 */	2424	{12, 13, -1}, /* 30 */
2252	{12,13,14}, /* 31 */	2425	{12, 13, 14}, /* 31 */
2253	{13,14,-1}, /* 32 */	2426	{13, 14, -1}, /* 32 */
2254	{14,15,-1}, /* 33 */	2427	{14, 15, -1}, /* 33 */
2255	{33,15,35}, /* 34 */	2428	{33, 15, 35}, /* 34 */
2256	{16,15,-1}, /* 35 */	2429	{16, 15, -1}, /* 35 */
2257	{17,16,-1}, /* 36 */	2430	{17, 16, -1}, /* 36 */
2258	{18,17,16}, /* 37 */	2431	{18, 17, 16}, /* 37 */
2259	{18,17,-1}, /* 38 */	2432	{18, 17, -1}, /* 38 */
2260	{18,19,-1}, /* 39 */	2433	{18, 19, -1}, /* 39 */
2261	{41,19,39}, /* 40 */	2434	{41, 19, 39}, /* 40 */
2262	{19,20,-1}, /* 41 */	2435	{19, 20, -1}, /* 41 */
2263	{20,21,-1}, /* 42 */	2436	{20, 21, -1}, /* 42 */
2264	{20,21,22}, /* 43 */	2437	{20, 21, 22}, /* 43 */
2265	{21,22,-1}, /* 44 */	2438	{21, 22, -1}, /* 44 */
2266	{23,22,-1}, /* 45 */	2439	{23, 22, -1}, /* 45 */
2267	{45,47,23}, /* 46 */	2440	{45, 47, 23}, /* 46 */
2268	{23,24,-1}, /* 47 */	2441	{23, 24, -1}, /* 47 */
2269	{24,9,-1}}; /* 48 */	2442	{24, 9, -1}
		2443	}; /* 48 */
2270		2444
2271	/* Recursive routine to step back and see if we can	2445	/* Recursive routine to step back and see if we can
2272	* find a path to that monster that we found. If not,	2446	* find a path to that monster that we found. If not,
2273	* we don't bother going toward it. Returns 1 if we	2447	* we don't bother going toward it. Returns 1 if we
2274	* can see a direct way to get it	2448	* can see a direct way to get it
2275	* Modified to be map tile aware -.MSW	2449	* Modified to be map tile aware -.MSW
2276	*/	2450	*/
2277
2278		2451
		2452
		2453	int
2279	int can_see_monsterP(mapstruct *m, int x, int y,int dir) {	2454	can_see_monsterP (maptile *m, int x, int y, int dir)
		2455	{
2280	sint16 dx, dy;	2456	sint16 dx, dy;
		2457	int
2281	int mflags;	2458	mflags;
2282		2459
		2460	if (dir < 0)
2283	if(dir<0) return 0; /* exit condition: invalid direction */	2461	return 0; /* exit condition: invalid direction */
2284		2462
2285	dx = x + freearr_x[dir];	2463	dx = x + freearr_x[dir];
2286	dy = y + freearr_y[dir];	2464	dy = y + freearr_y[dir];
2287		2465
2288	mflags = get_map_flags(m, &m, dx, dy, &dx, &dy);	2466	mflags = get_map_flags (m, &m, dx, dy, &dx, &dy);
2289		2467
2290	/* This functional arguably was incorrect before - it was	2468	/* This functional arguably was incorrect before - it was
2291	* checking for P_WALL - that was basically seeing if	2469	* checking for P_WALL - that was basically seeing if
2292	* we could move to the monster - this is being more	2470	* we could move to the monster - this is being more
2293	* literal on if we can see it. To know if we can actually	2471	* 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	2472	* move to the monster, we'd need the monster passed in or
2295	* at least its move type.	2473	* at least its move type.
2296	*/	2474	*/
2297	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW)) return 0;	2475	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW))
		2476	return 0;
2298		2477
2299	/* yes, can see. */	2478	/* yes, can see. */
2300	if(dir < 9) return 1;	2479	if (dir < 9)
		2480	return 1;
2301	return can_see_monsterP(m, x, y, reduction_dir[dir][0]) |	2481	return can_see_monsterP (m, x, y, reduction_dir[dir][0]) |
2302	can_see_monsterP(m,x,y, reduction_dir[dir][1]) |	2482	can_see_monsterP (m, x, y, reduction_dir[dir][1]) | can_see_monsterP (m, x, y, reduction_dir[dir][2]);
2303	can_see_monsterP(m,x,y, reduction_dir[dir][2]);
2304	}	2483	}
2305		2484
2306		2485
2307		2486
2308	/*	2487	/*
2309	* can_pick(picker, item): finds out if an object is possible to be	2488	* 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	2489	* picked up by the picker. Returnes 1 if it can be
2311	* picked up, otherwise 0.	2490	* picked up, otherwise 0.
2312	*	2491	*
…		…
2314	* core dumps if they do.	2493	* core dumps if they do.
2315	*	2494	*
2316	* Add a check so we can't pick up invisible objects (0.93.8)	2495	* Add a check so we can't pick up invisible objects (0.93.8)
2317	*/	2496	*/
2318		2497
		2498	int
2319	int can_pick(const object *who, const object *item) {	2499	can_pick (const object *who, const object *item)
		2500	{
2320	return /*QUERY_FLAG(who,FLAG_WIZ)||*/	2501	return /*QUERY_FLAG(who,FLAG_WIZ)|| */
2321	(item->weight>0&&!QUERY_FLAG(item,FLAG_NO_PICK)&&	2502	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&
2322	!QUERY_FLAG(item,FLAG_ALIVE)&&!item->invisible &&	2503	!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	}	2504	}
2325		2505
2326		2506
2327	/*	2507	/*
2328	* create clone from object to another	2508	* create clone from object to another
2329	*/	2509	*/
		2510	object *
2330	object *object_create_clone (object *asrc) {	2511	object_create_clone (object *asrc)
		2512	{
2331	object *dst = NULL,*tmp,*src,*part,*prev, *item;	2513	object *dst = 0, *tmp, *src, *part, *prev, *item;
2332		2514
2333	if(!asrc) return NULL;	2515	if (!asrc)
		2516	return 0;
		2517
2334	src = asrc;	2518	src = asrc;
2335	if(src->head)	2519	if (src->head)
2336	src = src->head;	2520	src = src->head;
2337		2521
2338	prev = NULL;	2522	prev = 0;
2339	for(part = src; part; part = part->more) {	2523	for (part = src; part; part = part->more)
2340	tmp = get_object();	2524	{
2341	copy_object(part,tmp);	2525	tmp = part->clone ();
2342	tmp->x -= src->x;	2526	tmp->x -= src->x;
2343	tmp->y -= src->y;	2527	tmp->y -= src->y;
		2528
2344	if(!part->head) {	2529	if (!part->head)
		2530	{
2345	dst = tmp;	2531	dst = tmp;
2346	tmp->head = NULL;	2532	tmp->head = 0;
		2533	}
2347	} else {	2534	else
		2535	{
2348	tmp->head = dst;	2536	tmp->head = dst;
2349	}	2537	}
		2538
2350	tmp->more = NULL;	2539	tmp->more = 0;
		2540
2351	if(prev)	2541	if (prev)
2352	prev->more = tmp;	2542	prev->more = tmp;
		2543
2353	prev = tmp;	2544	prev = tmp;
2354	}	2545	}
2355	/*** copy inventory ***/	2546
2356	for(item = src->inv; item; item = item->below) {	2547	for (item = src->inv; item; item = item->below)
2357	(void) insert_ob_in_ob(object_create_clone(item),dst);	2548	insert_ob_in_ob (object_create_clone (item), dst);
2358	}
2359		2549
2360	return dst;	2550	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	}	2551	}
2370		2552
2371	/* GROS - Creates an object using a string representing its content. */	2553	/* 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 */	2554	/* 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, */	2555	/* 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. */	2556	/* 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. */	2557	/* Remember not to use load_object_str in a time-critical situation. */
2376	/* Also remember that multiparts objects are not supported for now. */	2558	/* Also remember that multiparts objects are not supported for now. */
2377		2559
		2560	object *
2378	object* load_object_str(const char *obstr)	2561	load_object_str (const char *obstr)
2379	{	2562	{
2380	object *op;	2563	object *op;
2381	char filename[MAX_BUF];	2564	char filename[MAX_BUF];
		2565
2382	sprintf(filename,"%s/cfloadobstr2044",settings.tmpdir);	2566	sprintf (filename, "%s/cfloadobstr2044", settings.tmpdir);
2383		2567
2384	FILE *tempfile=fopen(filename,"w");	2568	FILE *tempfile = fopen (filename, "w");
		2569
2385	if (tempfile == NULL)	2570	if (tempfile == NULL)
2386	{	2571	{
2387	LOG(llevError,"Error - Unable to access load object temp file\n");	2572	LOG (llevError, "Error - Unable to access load object temp file\n");
2388	return NULL;	2573	return NULL;
2389	};	2574	}
		2575
2390	fprintf(tempfile,obstr);	2576	fprintf (tempfile, obstr);
2391	fclose(tempfile);	2577	fclose (tempfile);
2392		2578
2393	op=get_object();	2579	op = object::create ();
2394		2580
2395	object_thawer thawer (filename);	2581	object_thawer thawer (filename);
2396		2582
2397	if (thawer)	2583	if (thawer)
2398	load_object(thawer,op,0);	2584	load_object (thawer, op, 0);
2399		2585
2400	LOG(llevDebug," load str completed, object=%s\n", &op->name);	2586	LOG (llevDebug, " load str completed, object=%s\n", &op->name);
2401	CLEAR_FLAG(op,FLAG_REMOVED);	2587	CLEAR_FLAG (op, FLAG_REMOVED);
2402		2588
2403	return op;	2589	return op;
2404	}	2590	}
2405		2591
2406	/* This returns the first object in who's inventory that	2592	/* This returns the first object in who's inventory that
2407	* has the same type and subtype match.	2593	* has the same type and subtype match.
2408	* returns NULL if no match.	2594	* returns NULL if no match.
2409	*/	2595	*/
		2596	object *
2410	object *find_obj_by_type_subtype(const object *who, int type, int subtype)	2597	find_obj_by_type_subtype (const object *who, int type, int subtype)
2411	{	2598	{
2412	object *tmp;	2599	object *tmp;
2413		2600
2414	for (tmp=who->inv; tmp; tmp=tmp->below)	2601	for (tmp = who->inv; tmp; tmp = tmp->below)
2415	if (tmp->type == type && tmp->subtype == subtype) return tmp;	2602	if (tmp->type == type && tmp->subtype == subtype)
		2603	return tmp;
2416		2604
2417	return NULL;	2605	return NULL;
2418	}	2606	}
2419		2607
2420	/* If ob has a field named key, return the link from the list,	2608	/* If ob has a field named key, return the link from the list,
2421	* otherwise return NULL.	2609	* otherwise return NULL.
2422	*	2610	*
2423	* key must be a passed in shared string - otherwise, this won't	2611	* key must be a passed in shared string - otherwise, this won't
2424	* do the desired thing.	2612	* do the desired thing.
2425	*/	2613	*/
		2614	key_value *
2426	key_value * get_ob_key_link(const object * ob, const char * key) {	2615	get_ob_key_link (const object *ob, const char *key)
		2616	{
2427	key_value * link;	2617	key_value *link;
2428		2618
2429	for (link = ob->key_values; link != NULL; link = link->next) {	2619	for (link = ob->key_values; link != NULL; link = link->next)
2430	if (link->key == key) {	2620	if (link->key == key)
2431	return link;	2621	return link;
2432	}	2622
2433	}
2434
2435	return NULL;	2623	return NULL;
2436	}	2624	}
2437		2625
2438	/*	2626	/*
2439	* Returns the value of op has an extra_field for key, or NULL.	2627	* Returns the value of op has an extra_field for key, or NULL.
2440	*	2628	*
2441	* The argument doesn't need to be a shared string.	2629	* The argument doesn't need to be a shared string.
2442	*	2630	*
2443	* The returned string is shared.	2631	* The returned string is shared.
2444	*/	2632	*/
		2633	const char *
2445	const char * get_ob_key_value(const object * op, const char * const key) {	2634	get_ob_key_value (const object *op, const char *const key)
		2635	{
2446	key_value * link;	2636	key_value *link;
2447	const char * canonical_key;	2637	shstr_cmp canonical_key (key);
		2638
		2639	if (!canonical_key)
2448		2640	{
2449	canonical_key = shstr::find (key);
2450
2451	if (canonical_key == NULL) {
2452	/* 1. There being a field named key on any object	2641	/* 1. There being a field named key on any object
2453	* implies there'd be a shared string to find.	2642	* implies there'd be a shared string to find.
2454	* 2. Since there isn't, no object has this field.	2643	* 2. Since there isn't, no object has this field.
2455	* 3. Therefore, *this* object doesn't have this field.	2644	* 3. Therefore, *this* object doesn't have this field.
2456	*/	2645	*/
2457	return NULL;	2646	return 0;
2458	}	2647	}
2459		2648
2460	/* This is copied from get_ob_key_link() above -	2649	/* This is copied from get_ob_key_link() above -
2461	* only 4 lines, and saves the function call overhead.	2650	* only 4 lines, and saves the function call overhead.
2462	*/	2651	*/
2463	for (link = op->key_values; link != NULL; link = link->next) {	2652	for (link = op->key_values; link; link = link->next)
2464	if (link->key == canonical_key) {	2653	if (link->key == canonical_key)
2465	return link->value;	2654	return link->value;
2466	}	2655
2467	}	2656	return 0;
2468	return NULL;
2469	}	2657	}
2470		2658
2471		2659
2472	/*	2660	/*
2473	* Updates the canonical_key in op to value.	2661	* 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	2665	* Unless add_key is TRUE, it won't add fields, only change the value of existing
2478	* keys.	2666	* keys.
2479	*	2667	*
2480	* Returns TRUE on success.	2668	* Returns TRUE on success.
2481	*/	2669	*/
		2670	int
2482	int set_ob_key_value_s(object * op, const shstr &canonical_key, const char * value, int add_key) {	2671	set_ob_key_value_s (object *op, const shstr & canonical_key, const char *value, int add_key)
		2672	{
		2673	key_value *
2483	key_value * field = NULL, *last=NULL;	2674	field = NULL, *last = NULL;
2484		2675
2485	for (field=op->key_values; field != NULL; field=field->next) {	2676	for (field = op->key_values; field != NULL; field = field->next)
		2677	{
2486	if (field->key != canonical_key) {	2678	if (field->key != canonical_key)
		2679	{
2487	last = field;	2680	last = field;
2488	continue;	2681	continue;
2489	}	2682	}
2490		2683
2491	if (value)	2684	if (value)
2492	field->value = value;	2685	field->value = value;
2493	else {	2686	else
		2687	{
2494	/* Basically, if the archetype has this key set,	2688	/* Basically, if the archetype has this key set,
2495	* we need to store the null value so when we save	2689	* we need to store the null value so when we save
2496	* it, we save the empty value so that when we load,	2690	* it, we save the empty value so that when we load,
2497	* we get this value back again.	2691	* we get this value back again.
2498	*/	2692	*/
2499	if (get_ob_key_link (&op->arch->clone, canonical_key))	2693	if (get_ob_key_link (&op->arch->clone, canonical_key))
2500	field->value = 0;	2694	field->value = 0;
		2695	else
		2696	{
		2697	if (last)
		2698	last->next = field->next;
2501	else	2699	else
2502	{
2503	if (last) last->next = field->next;
2504	else op->key_values = field->next;	2700	op->key_values = field->next;
2505		2701
2506	delete field;	2702	delete field;
2507	}	2703	}
2508	}	2704	}
2509	return TRUE;	2705	return TRUE;
2510	}	2706	}
2511	/* IF we get here, key doesn't exist */	2707	/* IF we get here, key doesn't exist */
2512		2708
2513	/* No field, we'll have to add it. */	2709	/* No field, we'll have to add it. */
		2710
		2711	if (!add_key)
2514		2712	{
2515	if (!add_key) {
2516	return FALSE;	2713	return FALSE;
2517	}	2714	}
2518	/* There isn't any good reason to store a null	2715	/* There isn't any good reason to store a null
2519	* value in the key/value list. If the archetype has	2716	* value in the key/value list. If the archetype has
2520	* this key, then we should also have it, so shouldn't	2717	* this key, then we should also have it, so shouldn't
2521	* be here. If user wants to store empty strings,	2718	* be here. If user wants to store empty strings,
2522	* should pass in ""	2719	* should pass in ""
2523	*/	2720	*/
2524	if (value == NULL) return TRUE;	2721	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;	2722	return TRUE;
		2723
		2724	field = new key_value;
		2725
		2726	field->key = canonical_key;
		2727	field->value = value;
		2728	/* Usual prepend-addition. */
		2729	field->next = op->key_values;
		2730	op->key_values = field;
		2731
		2732	return TRUE;
2535	}	2733	}
2536		2734
2537	/*	2735	/*
2538	* Updates the key in op to value.	2736	* Updates the key in op to value.
2539	*	2737	*
…		…
2541	* and not add new ones.	2739	* and not add new ones.
2542	* In general, should be little reason FALSE is ever passed in for add_key	2740	* In general, should be little reason FALSE is ever passed in for add_key
2543	*	2741	*
2544	* Returns TRUE on success.	2742	* Returns TRUE on success.
2545	*/	2743	*/
		2744	int
2546	int set_ob_key_value(object * op, const char *key, const char * value, int add_key)	2745	set_ob_key_value (object *op, const char *key, const char *value, int add_key)
2547	{	2746	{
2548	shstr key_ (key);	2747	shstr key_ (key);
		2748
2549	return set_ob_key_value_s (op, key_, value, add_key);	2749	return set_ob_key_value_s (op, key_, value, add_key);
2550	}	2750	}
		2751
		2752	object::depth_iterator::depth_iterator (object *container)
		2753	: iterator_base (container)
		2754	{
		2755	while (item->inv)
		2756	item = item->inv;
		2757	}
		2758
		2759	void
		2760	object::depth_iterator::next ()
		2761	{
		2762	if (item->below)
		2763	{
		2764	item = item->below;
		2765
		2766	while (item->inv)
		2767	item = item->inv;
		2768	}
		2769	else
		2770	item = item->env;
		2771	}
		2772
		2773	// return a suitable string describing an objetc in enough detail to find it
		2774	const char *
		2775	object::debug_desc (char *info) const
		2776	{
		2777	char info2[256 * 3];
		2778	char *p = info;
		2779
		2780	p += snprintf (p, 256, "%d=\"%s%s%s\"",
		2781	count,
		2782	&name,
		2783	title ? " " : "",
		2784	title ? (const char *)title : "");
		2785
		2786	if (env)
		2787	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));
		2788
		2789	if (map)
		2790	p += snprintf (p, 256, "(on %s@%d+%d)", map->path, x, y);
		2791
		2792	return info;
		2793	}
		2794
		2795	const char *
		2796	object::debug_desc () const
		2797	{
		2798	static char info[256 * 3];
		2799	return debug_desc (info);
		2800	}
		2801

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