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Comparing deliantra/server/common/object.C (file contents):
Revision 1.22 by root, Sun Sep 10 00:51:23 2006 UTC vs.
Revision 1.94 by root, Wed Dec 27 05:22:35 2006 UTC

1	/*
2	* static char *rcsid_object_c =
3	* "$Id: object.C,v 1.22 2006/09/10 00:51:23 root Exp $";
4	*/
5
6	/*	1	/*
7	CrossFire, A Multiplayer game for X-windows	2	CrossFire, A Multiplayer game for X-windows
8		3
9	Copyright (C) 2001 Mark Wedel & Crossfire Development Team	4	Copyright (C) 2001 Mark Wedel & Crossfire Development Team
10	Copyright (C) 1992 Frank Tore Johansen	5	Copyright (C) 1992 Frank Tore Johansen
…		…
21		16
22	You should have received a copy of the GNU General Public License	17	You should have received a copy of the GNU General Public License
23	along with this program; if not, write to the Free Software	18	along with this program; if not, write to the Free Software
24	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.	19	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
25		20
26	The authors can be reached via e-mail at crossfire-devel@real-time.com	21	The authors can be reached via e-mail at <crossfire@schmorp.de>
27	*/	22	*/
28		23
29	/* Eneq(@csd.uu.se): Added weight-modifiers in environment of objects.	24	/* Eneq(@csd.uu.se): Added weight-modifiers in environment of objects.
30	sub/add_weight will transcend the environment updating the carrying	25	sub/add_weight will transcend the environment updating the carrying
31	variable. */	26	variable. */
32	#include <global.h>	27	#include <global.h>
33	#ifndef WIN32 /* ---win32 exclude headers */
34	#include <stdio.h>	28	#include <stdio.h>
35	#include <sys/types.h>	29	#include <sys/types.h>
36	#include <sys/uio.h>	30	#include <sys/uio.h>
37	#endif /* win32 */
38	#include <object.h>	31	#include <object.h>
39	#include <funcpoint.h>	32	#include <funcpoint.h>
40	#include <skills.h>
41	#include <loader.h>	33	#include <loader.h>
		34
		35	#include <bitset>
		36
42	int nrofallocobjects = 0;	37	int nrofallocobjects = 0;
		38	static UUID uuid;
		39	const uint64 UUID_SKIP = 1<<19;
43		40
44	object *objects; /* Pointer to the list of used objects */
45	object *active_objects; /* List of active objects that need to be processed */	41	object *active_objects; /* List of active objects that need to be processed */
46		42
47	short freearr_x[SIZEOFFREE]=	43	short freearr_x[SIZEOFFREE] = { 0, 0, 1, 1, 1, 0, -1, -1, -1, 0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2, -2, -2, -2, -1,
48	{0,0,1,1,1,0,-1,-1,-1,0,1,2,2,2,2,2,1,0,-1,-2,-2,-2,-2,-2,-1,
49	0,1,2,3,3,3,3,3,3,3,2,1,0,-1,-2,-3,-3,-3,-3,-3,-3,-3,-2,-1};	44	0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3, -3, -3, -3, -3, -2, -1
50	short freearr_y[SIZEOFFREE]=	45	};
51	{0,-1,-1,0,1,1,1,0,-1,-2,-2,-2,-1,0,1,2,2,2,2,2,1,0,-1,-2,-2,	46	short freearr_y[SIZEOFFREE] = { 0, -1, -1, 0, 1, 1, 1, 0, -1, -2, -2, -2, -1, 0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2,
52	-3,-3,-3,-3,-2,-1,0,1,2,3,3,3,3,3,3,3,2,1,0,-1,-2,-3,-3,-3};	47	-3, -3, -3, -3, -2, -1, 0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3
53	int maxfree[SIZEOFFREE]=	48	};
54	{0,9,10,13,14,17,18,21,22,25,26,27,30,31,32,33,36,37,39,39,42,43,44,45,	49	int maxfree[SIZEOFFREE] = { 0, 9, 10, 13, 14, 17, 18, 21, 22, 25, 26, 27, 30, 31, 32, 33, 36, 37, 39, 39, 42, 43, 44, 45,
55	48,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49};	50	48, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49
		51	};
56	int freedir[SIZEOFFREE]= {	52	int freedir[SIZEOFFREE] = {
57	0,1,2,3,4,5,6,7,8,1,2,2,2,3,4,4,4,5,6,6,6,7,8,8,8,	53	0, 1, 2, 3, 4, 5, 6, 7, 8, 1, 2, 2, 2, 3, 4, 4, 4, 5, 6, 6, 6, 7, 8, 8, 8,
58	1,2,2,2,2,2,3,4,4,4,4,4,5,6,6,6,6,6,7,8,8,8,8,8};	54	1, 2, 2, 2, 2, 2, 3, 4, 4, 4, 4, 4, 5, 6, 6, 6, 6, 6, 7, 8, 8, 8, 8, 8
		55	};
		56
		57	static void
		58	write_uuid (void)
		59	{
		60	char filename1[MAX_BUF], filename2[MAX_BUF];
		61
		62	sprintf (filename1, "%s/uuid", settings.localdir);
		63	sprintf (filename2, "%s/uuid~", settings.localdir);
		64
		65	FILE *fp;
		66
		67	if (!(fp = fopen (filename2, "w")))
		68	{
		69	LOG (llevError, "ERROR: cannot open %s for writing, unable to write UUID!\n", filename2);
		70	return;
		71	}
		72
		73	fprintf (fp, "<1,%llx>\n", (unsigned long long)uuid.seq + UUID_SKIP * 2);
		74	fclose (fp);
		75	rename (filename2, filename1);
		76	}
		77
		78	static void
		79	read_uuid (void)
		80	{
		81	char filename[MAX_BUF];
		82
		83	sprintf (filename, "%s/uuid", settings.localdir);
		84
		85	FILE *fp;
		86
		87	if (!(fp = fopen (filename, "r")))
		88	{
		89	if (errno == ENOENT)
		90	{
		91	LOG (llevInfo, "RESET uid to 1\n");
		92	uuid.seq = 0;
		93	write_uuid ();
		94	return;
		95	}
		96
		97	LOG (llevError, "FATAL: cannot open %s for reading!\n", filename);
		98	_exit (1);
		99	}
		100
		101	int version;
		102	unsigned long long uid;
		103	if (2 != fscanf (fp, "<%d,%llx>\n", &version, &uid) || version != 1)
		104	{
		105	LOG (llevError, "FATAL: error reading uid from %s!\n", filename);
		106	_exit (1);
		107	}
		108
		109	uuid.seq = uid;
		110	write_uuid ();
		111	LOG (llevDebug, "read UID: %" PRId64 "\n", uid);
		112	fclose (fp);
		113	}
		114
		115	UUID
		116	gen_uuid ()
		117	{
		118	UUID uid;
		119
		120	uid.seq = ++uuid.seq;
		121
		122	if (!(uuid.seq & (UUID_SKIP - 1)))
		123	write_uuid ();
		124
		125	return uid;
		126	}
		127
		128	void
		129	init_uuid ()
		130	{
		131	read_uuid ();
		132	}
59		133
60	/* Returns TRUE if every key_values in wants has a partner with the same value in has. */	134	/* Returns TRUE if every key_values in wants has a partner with the same value in has. */
		135	static int
61	static int compare_ob_value_lists_one(const object * wants, const object * has) {	136	compare_ob_value_lists_one (const object *wants, const object *has)
		137	{
62	key_value * wants_field;	138	key_value *wants_field;
63		139
64	/* n-squared behaviour (see get_ob_key_link()), but I'm hoping both	140	/* n-squared behaviour (see get_ob_key_link()), but I'm hoping both
65	* objects with lists are rare, and lists stay short. If not, use a	141	* objects with lists are rare, and lists stay short. If not, use a
66	* different structure or at least keep the lists sorted...	142	* different structure or at least keep the lists sorted...
67	*/	143	*/
68		144
69	/* For each field in wants, */	145	/* For each field in wants, */
70	for (wants_field = wants->key_values; wants_field != NULL; wants_field = wants_field->next) {	146	for (wants_field = wants->key_values; wants_field; wants_field = wants_field->next)
		147	{
71	key_value * has_field;	148	key_value *has_field;
72		149
73	/* Look for a field in has with the same key. */	150	/* Look for a field in has with the same key. */
74	has_field = get_ob_key_link(has, wants_field->key);	151	has_field = get_ob_key_link (has, wants_field->key);
		152
		153	if (has_field == NULL)
75		154	{
76	if (has_field == NULL) {
77	/* No field with that name. */	155	/* No field with that name. */
78	return FALSE;	156	return FALSE;
79	}	157	}
80		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->flag ^ ob2->flag).reset (FLAG_INV_LOCKED).reset (FLAG_CLIENT_SENT).any ()
145	/* the 0x400000 on flags2 is FLAG_INV_LOCK. I don't think something	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	}
272
273	/*
274	* Eneq(@csd.uu.se): Since we can have items buried in a character we need
275	* a better check. We basically keeping traversing up until we can't
276	* or find a player.
277	*/
278
279	object *is_player_inv (object *op) {
280	for (;op!=NULL&&op->type!=PLAYER; op=op->env)
281	if (op->env==op)
282	op->env = NULL;
283	return op;
284	}	354	}
285		355
286	/*	356	/*
287	* Used by: Crossedit: dump. Server DM commands: dumpbelow, dump.	357	* Used by: Crossedit: dump. Server DM commands: dumpbelow, dump.
288	* Some error messages.	358	* Some error messages.
289	* The result of the dump is stored in the static global errmsg array.	359	* The result of the dump is stored in the static global errmsg array.
290	*/	360	*/
291		361
292	void dump_object2(object *op) {	362	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) {	363	dump_object (object *op)
339	if(op==NULL) {	364	{
340	strcpy(errmsg,"[NULL pointer]");	365	if (!op)
341	return;	366	return strdup ("[NULLOBJ]");
342	}
343	errmsg[0]='\0';
344	dump_object2(op);
345	}
346		367
347	void dump_all_objects(void) {	368	object_freezer freezer;
348	object *op;	369	save_object (freezer, op, 1);
349	for(op=objects;op!=NULL;op=op->next) {	370	return freezer.as_string ();
350	dump_object(op);
351	fprintf(logfile, "Object %d\n:%s\n", op->count, errmsg);
352	}
353	}	371	}
354		372
355	/*	373	/*
356	* get_nearest_part(multi-object, object 2) returns the part of the	374	* get_nearest_part(multi-object, object 2) returns the part of the
357	* multi-object 1 which is closest to the second object.	375	* multi-object 1 which is closest to the second object.
358	* If it's not a multi-object, it is returned.	376	* If it's not a multi-object, it is returned.
359	*/	377	*/
360		378
		379	object *
361	object *get_nearest_part(object *op, const object *pl) {	380	get_nearest_part (object *op, const object *pl)
		381	{
362	object *tmp,*closest;	382	object *tmp, *closest;
363	int last_dist,i;	383	int last_dist, i;
		384
364	if(op->more==NULL)	385	if (op->more == NULL)
365	return op;	386	return op;
366	for(last_dist=distance(op,pl),closest=op,tmp=op->more;tmp!=NULL;tmp=tmp->more)	387	for (last_dist = distance (op, pl), closest = op, tmp = op->more; tmp != NULL; tmp = tmp->more)
367	if((i=distance(tmp,pl))<last_dist)	388	if ((i = distance (tmp, pl)) < last_dist)
368	closest=tmp,last_dist=i;	389	closest = tmp, last_dist = i;
369	return closest;	390	return closest;
370	}	391	}
371		392
372	/*	393	/*
373	* Returns the object which has the count-variable equal to the argument.	394	* Returns the object which has the count-variable equal to the argument.
374	*/	395	*/
375		396
		397	object *
376	object *find_object(tag_t i) {	398	find_object (tag_t i)
377	object *op;	399	{
378	for(op=objects;op!=NULL;op=op->next)	400	for (object *op = object::first; op; op = op->next)
379	if(op->count==i)	401	if (op->count == i)
380	break;	402	return op;
		403
381	return op;	404	return 0;
382	}	405	}
383		406
384	/*	407	/*
385	* Returns the first object which has a name equal to the argument.	408	* Returns the first object which has a name equal to the argument.
386	* Used only by the patch command, but not all that useful.	409	* Used only by the patch command, but not all that useful.
387	* Enables features like "patch <name-of-other-player> food 999"	410	* Enables features like "patch <name-of-other-player> food 999"
388	*/	411	*/
389		412
		413	object *
390	object *find_object_name(const char *str) {	414	find_object_name (const char *str)
391	const char *name = shstr::find (str);	415	{
		416	shstr_cmp str_ (str);
392	object *op;	417	object *op;
		418
393	for(op=objects;op!=NULL;op=op->next)	419	for (op = object::first; op != NULL; op = op->next)
394	if(&op->name == name)	420	if (op->name == str_)
395	break;	421	break;
396		422
397	return op;	423	return op;
398	}	424	}
399		425
		426	void
400	void free_all_object_data ()	427	free_all_object_data ()
401	{	428	{
402	LOG (llevDebug, "%d allocated objects\n", nrofallocobjects);	429	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	}	430	}
439		431
440	/*	432	/*
441	* Sets the owner and sets the skill and exp pointers to owner's current	433	* Sets the owner and sets the skill and exp pointers to owner's current
442	* skill and experience objects.	434	* skill and experience objects.
443	*/	435	*/
444	void set_owner (object *op, object *owner)	436	void
		437	object::set_owner (object *owner)
445	{	438	{
446	if(owner==NULL||op==NULL)	439	if (!owner)
447	return;	440	return;
448		441
449	/* next line added to allow objects which own objects */	442	/* next line added to allow objects which own objects */
450	/* Add a check for ownercounts in here, as I got into an endless loop	443	/* 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	444	* with the fireball owning a poison cloud which then owned the
452	* fireball. I believe that was caused by one of the objects getting	445	* fireball. I believe that was caused by one of the objects getting
453	* freed and then another object replacing it. Since the ownercounts	446	* 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.	447	* didn't match, this check is valid and I believe that cause is valid.
455	*/	448	*/
456	while (owner->owner && owner!=owner->owner &&	449	while (owner->owner)
457	owner->ownercount==owner->owner->count) owner=owner->owner;	450	owner = owner->owner;
458		451
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;	452	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	}	453	}
494		454
495	/* Zero the key_values on op, decrementing the shared-string	455	/* Zero the key_values on op, decrementing the shared-string
496	* refcounts and freeing the links.	456	* refcounts and freeing the links.
497	*/	457	*/
		458	static void
498	static void free_key_values(object * op)	459	free_key_values (object *op)
499	{	460	{
500	for (key_value *i = op->key_values; i != 0; )	461	for (key_value *i = op->key_values; i != 0;)
501	{	462	{
502	key_value *next = i->next;	463	key_value *next = i->next;
503	delete i;	464	delete i;
		465
504	i = next;	466	i = next;
505	}	467	}
506		468
507	op->key_values = 0;	469	op->key_values = 0;
508	}	470	}
509		471
510	void object::clear ()
511	{
512	attachable_base::clear ();
513
514	free_key_values (this);
515
516	name = 0;
517	name_pl = 0;
518	title = 0;
519	race = 0;
520	slaying = 0;
521	skill = 0;
522	msg = 0;
523	lore = 0;
524	custom_name = 0;
525	materialname = 0;
526
527	memset (static_cast<object_pod *>(this), 0, sizeof (object_pod));
528
529	SET_FLAG (this, FLAG_REMOVED);
530	}
531
532	void object::clone (object *destination)
533	{
534	*(object_copy *)destination = *(object_copy *)this;
535	*(object_pod *)destination = *(object_pod *)this;
536
537	if (self || cb)
538	INVOKE_OBJECT (CLONE, this, ARG_OBJECT (destination));
539	}
540
541	/*	472	/*
542	* clear_object() frees everything allocated by an object, and also
543	* clears all variables and flags to default settings.
544	*/
545
546	void clear_object (object *op)
547	{
548	op->clear ();
549
550	op->contr = NULL;
551	op->below = NULL;
552	op->above = NULL;
553	op->inv = NULL;
554	op->container=NULL;
555	op->env=NULL;
556	op->more=NULL;
557	op->head=NULL;
558	op->map=NULL;
559	op->refcount=0;
560	op->active_next = NULL;
561	op->active_prev = NULL;
562	/* What is not cleared is next, prev, and count */
563
564	op->expmul = 1.0;
565	op->face = blank_face;
566	op->attacked_by_count = -1;
567
568	if (settings.casting_time)
569	op->casting_time = -1;
570	}
571
572	/*
573	* copy object first frees everything allocated by the second object,	473	* copy_to first frees everything allocated by the dst object,
574	* and then copies the contends of the first object into the second	474	* and then copies the contents of itself into the second
575	* object, allocating what needs to be allocated. Basically, any	475	* object, allocating what needs to be allocated. Basically, any
576	* data that is malloc'd needs to be re-malloc/copied. Otherwise,	476	* 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	477	* if the first object is freed, the pointers in the new object
578	* will point at garbage.	478	* will point at garbage.
579	*/	479	*/
580		480	void
581	void copy_object (object *op2, object *op)	481	object::copy_to (object *dst)
582	{	482	{
583	bool is_freed = QUERY_FLAG (op, FLAG_FREED);	483	bool is_freed = QUERY_FLAG (dst, FLAG_FREED);
584	bool is_removed = QUERY_FLAG (op, FLAG_REMOVED);	484	bool is_removed = QUERY_FLAG (dst, FLAG_REMOVED);
585		485
586	op2->clone (op);	486	*(object_copy *)dst = *this;
587		487
588	if (is_freed) SET_FLAG (op, FLAG_FREED);	488	if (is_freed)
589	if (is_removed) SET_FLAG (op, FLAG_REMOVED);	489	SET_FLAG (dst, FLAG_FREED);
590		490
		491	if (is_removed)
		492	SET_FLAG (dst, FLAG_REMOVED);
		493
591	if (op2->speed < 0)	494	if (speed < 0)
592	op->speed_left = op2->speed_left - RANDOM() % 200 / 100.0;	495	dst->speed_left = speed_left - RANDOM () % 200 / 100.0;
593		496
594	/* Copy over key_values, if any. */	497	/* Copy over key_values, if any. */
595	if (op2->key_values != NULL)	498	if (key_values)
596	{	499	{
597	key_value *tail = NULL;	500	key_value *tail = 0;
598	key_value *i;	501	key_value *i;
599		502
600	op->key_values = NULL;	503	dst->key_values = 0;
601		504
602	for (i = op2->key_values; i != NULL; i = i->next)	505	for (i = key_values; i; i = i->next)
603	{	506	{
604	key_value *new_link = new key_value;	507	key_value *new_link = new key_value;
605		508
606	new_link->next = NULL;	509	new_link->next = 0;
607	new_link->key = i->key;	510	new_link->key = i->key;
608	new_link->value = i->value;	511	new_link->value = i->value;
609		512
610	/* Try and be clever here, too. */	513	/* Try and be clever here, too. */
611	if (op->key_values == NULL)	514	if (!dst->key_values)
612	{	515	{
613	op->key_values = new_link;	516	dst->key_values = new_link;
614	tail = new_link;	517	tail = new_link;
615	}	518	}
616	else	519	else
617	{	520	{
618	tail->next = new_link;	521	tail->next = new_link;
619	tail = new_link;	522	tail = new_link;
620	}	523	}
621	}	524	}
622	}	525	}
623		526
624	update_ob_speed (op);	527	dst->set_speed (dst->speed);
		528	}
		529
		530	object *
		531	object::clone ()
		532	{
		533	object *neu = create ();
		534	copy_to (neu);
		535	return neu;
625	}	536	}
626		537
627	/*	538	/*
628	* If an object with the IS_TURNABLE() flag needs to be turned due	539	* 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	540	* 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.	541	* be called to update the face variable, _and_ how it looks on the map.
631	*/	542	*/
632		543
		544	void
633	void update_turn_face(object *op) {	545	update_turn_face (object *op)
		546	{
634	if(!QUERY_FLAG(op,FLAG_IS_TURNABLE)||op->arch==NULL)	547	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || op->arch == NULL)
635	return;	548	return;
636	SET_ANIMATION(op, op->direction);	549	SET_ANIMATION (op, op->direction);
637	update_object(op,UP_OBJ_FACE);	550	update_object (op, UP_OBJ_FACE);
638	}	551	}
639		552
640	/*	553	/*
641	* Updates the speed of an object. If the speed changes from 0 to another	554	* 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.	555	* 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.	556	* This function needs to be called whenever the speed of an object changes.
644	*/	557	*/
645		558	void
646	void update_ob_speed(object *op) {	559	object::set_speed (float speed)
		560	{
647	extern int arch_init;	561	extern int arch_init;
648		562
649	/* No reason putting the archetypes objects on the speed list,	563	/* No reason putting the archetypes objects on the speed list,
650	* since they never really need to be updated.	564	* since they never really need to be updated.
651	*/	565	*/
652		566	if (flag [FLAG_FREED] && speed)
653	if (QUERY_FLAG(op, FLAG_FREED) && op->speed) {	567	{
654	LOG(llevError,"Object %s is freed but has speed.\n", &op->name);	568	LOG (llevError, "Object %s is freed but has speed.\n", &name);
655	#ifdef MANY_CORES
656	abort();
657	#else
658	op->speed = 0;	569	speed = 0;
659	#endif
660	}	570	}
		571
		572	this->speed = speed;
		573
661	if (arch_init) {	574	if (arch_init)
		575	return;
		576
		577	if (FABS (speed) > MIN_ACTIVE_SPEED)
		578	{
		579	/* If already on active list, don't do anything */
		580	if (active_next || active_prev || this == active_objects)
662	return;	581	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		582
669	/* process_events() expects us to insert the object at the beginning	583	/* process_events() expects us to insert the object at the beginning
670	* of the list. */	584	* of the list. */
671	op->active_next = active_objects;	585	active_next = active_objects;
		586
672	if (op->active_next!=NULL)	587	if (active_next)
673	op->active_next->active_prev = op;	588	active_next->active_prev = this;
		589
674	active_objects = op;	590	active_objects = this;
		591	}
		592	else
675	}	593	{
676	else {
677	/* If not on the active list, nothing needs to be done */	594	/* If not on the active list, nothing needs to be done */
678	if (!op->active_next && !op->active_prev && op!=active_objects)	595	if (!active_next && !active_prev && this != active_objects)
679	return;	596	return;
680		597
681	if (op->active_prev==NULL) {	598	if (!active_prev)
		599	{
682	active_objects = op->active_next;	600	active_objects = active_next;
		601
683	if (op->active_next!=NULL)	602	if (active_next)
684	op->active_next->active_prev = NULL;	603	active_next->active_prev = 0;
685	}	604	}
686	else {	605	else
		606	{
687	op->active_prev->active_next = op->active_next;	607	active_prev->active_next = active_next;
		608
688	if (op->active_next)	609	if (active_next)
689	op->active_next->active_prev = op->active_prev;	610	active_next->active_prev = active_prev;
690	}	611	}
		612
691	op->active_next = NULL;	613	active_next = 0;
692	op->active_prev = NULL;	614	active_prev = 0;
693	}	615	}
694	}	616	}
695		617
696	/* This function removes object 'op' from the list of active	618	/* This function removes object 'op' from the list of active
697	* objects.	619	* objects.
…		…
699	* reference maps where you don't want an object that isn't	621	* reference maps where you don't want an object that isn't
700	* in play chewing up cpu time getting processed.	622	* in play chewing up cpu time getting processed.
701	* The reverse of this is to call update_ob_speed, which	623	* The reverse of this is to call update_ob_speed, which
702	* will do the right thing based on the speed of the object.	624	* will do the right thing based on the speed of the object.
703	*/	625	*/
		626	void
704	void remove_from_active_list(object *op)	627	remove_from_active_list (object *op)
705	{	628	{
706	/* If not on the active list, nothing needs to be done */	629	/* If not on the active list, nothing needs to be done */
707	if (!op->active_next && !op->active_prev && op!=active_objects)	630	if (!op->active_next && !op->active_prev && op != active_objects)
708	return;	631	return;
709		632
710	if (op->active_prev==NULL) {	633	if (op->active_prev == NULL)
		634	{
711	active_objects = op->active_next;	635	active_objects = op->active_next;
712	if (op->active_next!=NULL)	636	if (op->active_next != NULL)
713	op->active_next->active_prev = NULL;	637	op->active_next->active_prev = NULL;
		638	}
		639	else
714	}	640	{
715	else {
716	op->active_prev->active_next = op->active_next;	641	op->active_prev->active_next = op->active_next;
717	if (op->active_next)	642	if (op->active_next)
718	op->active_next->active_prev = op->active_prev;	643	op->active_next->active_prev = op->active_prev;
719	}	644	}
720	op->active_next = NULL;	645	op->active_next = NULL;
721	op->active_prev = NULL;	646	op->active_prev = NULL;
722	}	647	}
723		648
724	/*	649	/*
725	* update_object() updates the array which represents the map.	650	* update_object() updates the the map.
726	* It takes into account invisible objects (and represent squares covered	651	* It takes into account invisible objects (and represent squares covered
727	* by invisible objects by whatever is below them (unless it's another	652	* by invisible objects by whatever is below them (unless it's another
728	* invisible object, etc...)	653	* invisible object, etc...)
729	* If the object being updated is beneath a player, the look-window	654	* If the object being updated is beneath a player, the look-window
730	* of that player is updated (this might be a suboptimal way of	655	* of that player is updated (this might be a suboptimal way of
731	* updating that window, though, since update_object() is called _often_)	656	* updating that window, though, since update_object() is called _often_)
732	*	657	*
733	* action is a hint of what the caller believes need to be done.	658	* action is a hint of what the caller believes need to be done.
734	* For example, if the only thing that has changed is the face (due to
735	* an animation), we don't need to call update_position until that actually
736	* comes into view of a player. OTOH, many other things, like addition/removal
737	* of walls or living creatures may need us to update the flags now.
738	* current action are:	659	* current action are:
739	* UP_OBJ_INSERT: op was inserted	660	* UP_OBJ_INSERT: op was inserted
740	* UP_OBJ_REMOVE: op was removed	661	* UP_OBJ_REMOVE: op was removed
741	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update	662	* 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.	663	* as that is easier than trying to look at what may have changed.
743	* UP_OBJ_FACE: only the objects face has changed.	664	* UP_OBJ_FACE: only the objects face has changed.
744	*/	665	*/
745		666	void
746	void update_object(object *op, int action) {	667	update_object (object *op, int action)
747	int update_now=0, flags;	668	{
748	MoveType move_on, move_off, move_block, move_slow;	669	MoveType move_on, move_off, move_block, move_slow;
749		670
750	if (op == NULL) {	671	if (op == NULL)
		672	{
751	/* this should never happen */	673	/* this should never happen */
752	LOG(llevDebug,"update_object() called for NULL object.\n");	674	LOG (llevDebug, "update_object() called for NULL object.\n");
753	return;	675	return;
754	}
755		676	}
756	if(op->env!=NULL) {	677
		678	if (op->env)
		679	{
757	/* Animation is currently handled by client, so nothing	680	/* Animation is currently handled by client, so nothing
758	* to do in this case.	681	* to do in this case.
759	*/	682	*/
760	return;	683	return;
761	}	684	}
762		685
763	/* If the map is saving, don't do anything as everything is	686	/* If the map is saving, don't do anything as everything is
764	* going to get freed anyways.	687	* going to get freed anyways.
765	*/	688	*/
766	if (!op->map || op->map->in_memory == MAP_SAVING) return;	689	if (!op->map || op->map->in_memory == MAP_SAVING)
767		690	return;
		691
768	/* make sure the object is within map boundaries */	692	/* make sure the object is within map boundaries */
769	if (op->x < 0 || op->x >= MAP_WIDTH(op->map) ||	693	if (op->x < 0 || op->x >= op->map->width || op->y < 0 || op->y >= op->map->height)
770	op->y < 0 || op->y >= MAP_HEIGHT(op->map)) {	694	{
771	LOG(llevError,"update_object() called for object out of map!\n");	695	LOG (llevError, "update_object() called for object out of map!\n");
772	#ifdef MANY_CORES	696	#ifdef MANY_CORES
773	abort();	697	abort ();
774	#endif	698	#endif
775	return;	699	return;
776	}
777		700	}
778	flags = GET_MAP_FLAGS(op->map, op->x, op->y);
779	SET_MAP_FLAGS(op->map, op->x, op->y, flags | P_NEED_UPDATE);
780	move_slow = GET_MAP_MOVE_SLOW(op->map, op->x, op->y);
781	move_on = GET_MAP_MOVE_ON(op->map, op->x, op->y);
782	move_block = GET_MAP_MOVE_BLOCK(op->map, op->x, op->y);
783	move_off = GET_MAP_MOVE_OFF(op->map, op->x, op->y);
784		701
		702	mapspace &m = op->ms ();
		703
		704	if (m.flags_ & P_NEED_UPDATE)
		705	/* nop */;
785	if (action == UP_OBJ_INSERT) {	706	else if (action == UP_OBJ_INSERT)
		707	{
		708	// this is likely overkill, TODO: revisit (schmorp)
786	if (QUERY_FLAG(op, FLAG_BLOCKSVIEW) && !(flags & P_BLOCKSVIEW))	709	if ((QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(m.flags_ & P_BLOCKSVIEW))
787	update_now=1;
788
789	if (QUERY_FLAG(op, FLAG_NO_MAGIC) && !(flags & P_NO_MAGIC))	710	|| (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(m.flags_ & P_NO_MAGIC))
790	update_now=1;	711	|| (op->type == PLAYER && !(m.flags_ & P_PLAYER))
791		712	|| (op->type == SAFE_GROUND && !(m.flags_ & P_SAFE))
		713	|| (QUERY_FLAG (op, FLAG_ALIVE) && !(m.flags_ & P_IS_ALIVE))
792	if (QUERY_FLAG(op, FLAG_DAMNED) && !(flags & P_NO_CLERIC))	714	|| (QUERY_FLAG (op, FLAG_DAMNED) && !(m.flags_ & P_NO_CLERIC))
793	update_now=1;	715	|| (m.move_on | op->move_on ) != m.move_on
794
795	if (QUERY_FLAG(op, FLAG_ALIVE) && !(flags & P_IS_ALIVE))
796	update_now=1;
797
798	if (op->type == SAFE_GROUND && !(flags & P_SAFE))
799	update_now=1;
800
801	if ((move_on | op->move_on) != move_on) update_now=1;
802
803	if ((move_off | op->move_off) != move_off) update_now=1;	716	|| (m.move_off | op->move_off ) != m.move_off
804		717	|| (m.move_slow | op->move_slow) != m.move_slow
805	/* This isn't perfect, but I don't expect a lot of objects to	718	/* This isn't perfect, but I don't expect a lot of objects to
806	* to have move_allow right now.	719	* to have move_allow right now.
807	*/	720	*/
808	if (((move_block | op->move_block) & ~op->move_allow) != move_block)	721	|| ((m.move_block | op->move_block) & ~op->move_allow) != m.move_block
809	update_now=1;	722	|| 1) // the above is not strong enough a test to skip updating. los maybe? TODO (Schmorp)
810		723	m.flags_ = P_NEED_UPDATE;
811	if ((move_slow | op->move_slow) != move_slow)
812	update_now=1;
813	}	724	}
814	/* if the object is being removed, we can't make intelligent	725	/* if the object is being removed, we can't make intelligent
815	* decisions, because remove_ob can't really pass the object	726	* decisions, because remove_ob can't really pass the object
816	* that is being removed.	727	* that is being removed.
817	*/	728	*/
818	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE) {	729	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)
819	update_now=1;	730	m.flags_ = P_NEED_UPDATE;
820	} else if (action == UP_OBJ_FACE) {	731	else if (action == UP_OBJ_FACE)
821	/* Nothing to do for that case */	732	/* Nothing to do for that case */ ;
822	}
823	else {	733	else
824	LOG(llevError,"update_object called with invalid action: %d\n", action);	734	LOG (llevError, "update_object called with invalid action: %d\n", action);
825	}
826		735
827	if (update_now) {
828	SET_MAP_FLAGS(op->map, op->x, op->y, flags | P_NO_ERROR | P_NEED_UPDATE);
829	update_position(op->map, op->x, op->y);
830	}
831
832	if(op->more!=NULL)	736	if (op->more)
833	update_object(op->more, action);	737	update_object (op->more, action);
834	}	738	}
835		739
836	static std::vector<object *> mortals;	740	object::vector object::objects; // not yet used
837		741	object *object::first;
838	void object::free_mortals ()
839	{
840	for (std::vector<object *>::iterator i = mortals.begin (); i != mortals.end (); ++i)
841	delete *i;
842
843	mortals.clear ();
844	}
845		742
846	object::object ()	743	object::object ()
847	{	744	{
848	SET_FLAG (this, FLAG_REMOVED);	745	SET_FLAG (this, FLAG_REMOVED);
849		746
850	expmul = 1.0;	747	expmul = 1.0;
851	face = blank_face;	748	face = blank_face;
852	attacked_by_count = -1;
853	}	749	}
854		750
855	object::~object ()	751	object::~object ()
856	{	752	{
857	free_key_values (this);	753	free_key_values (this);
858	}	754	}
859		755
860	void
861	object::link ()	756	void object::link ()
862	{	757	{
863	count = ++ob_count;	758	count = ++ob_count;
		759	uuid = gen_uuid ();
864		760
865	prev = 0;	761	prev = 0;
866	next = objects;	762	next = object::first;
867		763
868	if (objects)	764	if (object::first)
869	objects->prev = this;	765	object::first->prev = this;
870		766
871	objects = this;	767	object::first = this;
872	}	768	}
873		769
874	void
875	object::unlink ()	770	void object::unlink ()
876	{	771	{
877	count = 0;	772	if (this == object::first)
		773	object::first = next;
878		774
879	/* Remove this object from the list of used objects */	775	/* Remove this object from the list of used objects */
880	if (prev) prev->next = next;	776	if (prev) prev->next = next;
881	if (next) next->prev = prev;	777	if (next) next->prev = prev;
882	if (this == objects) objects = next;	778
883	}	779	prev = 0;
		780	next = 0;
		781	}
		782
		783	/*
		784	* Remove and free all objects in the inventory of the given object.
		785	* object.c ?
		786	*/
		787	void
		788	object::destroy_inv (bool drop_to_ground)
		789	{
		790	// need to check first, because the checks below might segfault
		791	// as we might be on an invalid mapspace and crossfire code
		792	// is too buggy to ensure that the inventory is empty.
		793	// corollary: if you create arrows etc. with stuff in tis inventory,
		794	// cf will crash below with off-map x and y
		795	if (!inv)
		796	return;
		797
		798	/* Only if the space blocks everything do we not process -
		799	* if some form of movement is allowed, let objects
		800	* drop on that space.
		801	*/
		802	if (!drop_to_ground
		803	|| !map
		804	|| map->in_memory != MAP_IN_MEMORY
		805	|| map->at (x, y).move_block == MOVE_ALL)
		806	{
		807	while (inv)
		808	{
		809	inv->destroy_inv (drop_to_ground);
		810	inv->destroy ();
		811	}
		812	}
		813	else
		814	{ /* Put objects in inventory onto this space */
		815	while (inv)
		816	{
		817	object *op = inv;
		818
		819	if (op->flag [FLAG_STARTEQUIP]
		820	|| op->flag [FLAG_NO_DROP]
		821	|| op->type == RUNE
		822	|| op->type == TRAP
		823	|| op->flag [FLAG_IS_A_TEMPLATE])
		824	op->destroy ();
		825	else
		826	map->insert (op, x, y);
		827	}
		828	}
		829	}
884		830
885	object *object::create ()	831	object *object::create ()
886	{	832	{
887	object *op = new object;	833	object *op = new object;
888	op->link ();	834	op->link ();
889	return op;	835	return op;
890	}	836	}
891		837
892	/*
893	* free_object() frees everything allocated by an object, removes
894	* it from the list of used objects, and puts it on the list of
895	* free objects. The IS_FREED() flag is set in the object.
896	* The object must have been removed by remove_ob() first for
897	* this function to succeed.
898	*
899	* If free_inventory is set, free inventory as well. Else drop items in
900	* inventory to the ground.
901	*/
902	void	838	void
903	object::free (bool free_inventory)	839	object::do_destroy ()
904	{	840	{
905	if (!QUERY_FLAG (this, FLAG_REMOVED))	841	if (flag [FLAG_IS_LINKED])
906	{	842	remove_button_link (this);
907	LOG (llevDebug, "Free object called with non removed object\n");
908	dump_object (this);
909	#ifdef MANY_CORES
910	abort ();
911	#endif
912	}
913		843
914	if (QUERY_FLAG (this, FLAG_FRIENDLY))	844	if (flag [FLAG_FRIENDLY])
915	{
916	LOG (llevMonster, "Warning: tried to free friendly object.\n");
917	remove_friendly_object (this);	845	remove_friendly_object (this);
918	}
919		846
920	if (QUERY_FLAG (this, FLAG_FREED))	847	if (!flag [FLAG_REMOVED])
921	{	848	remove ();
922	dump_object (this);	849
923	LOG (llevError, "Trying to free freed object.\n%s\n", errmsg);	850	if (flag [FLAG_FREED])
924	return;	851	return;
		852
		853	set_speed (0);
		854
		855	flag [FLAG_FREED] = 1;
		856
		857	attachable::do_destroy ();
		858
		859	destroy_inv (true);
		860	unlink ();
		861
		862	// hack to ensure that freed objects still have a valid map
		863	{
		864	static maptile *freed_map; // freed objects are moved here to avoid crashes
		865
		866	if (!freed_map)
		867	{
		868	freed_map = new maptile;
		869
		870	freed_map->name = "/internal/freed_objects_map";
		871	freed_map->width = 3;
		872	freed_map->height = 3;
		873
		874	freed_map->allocate ();
925	}	875	}
		876
		877	map = freed_map;
		878	x = 1;
		879	y = 1;
		880	}
		881
		882	head = 0;
926		883
927	if (more)	884	if (more)
928	{	885	{
929	more->free (free_inventory);	886	more->destroy ();
930	more = 0;	887	more = 0;
931	}	888	}
932		889
933	if (inv)	890	// clear those pointers that likely might have circular references to us
934	{	891	owner = 0;
935	/* Only if the space blocks everything do we not process -	892	enemy = 0;
936	* if some form of movement is allowed, let objects	893	attacked_by = 0;
937	* drop on that space.
938	*/
939	if (free_inventory || !map
940	|| map->in_memory != MAP_IN_MEMORY
941	|| (GET_MAP_MOVE_BLOCK (map, x, y) == MOVE_ALL))
942	{
943	object *op = inv;
944		894
945	while (op)	895	// only relevant for players(?), but make sure of it anyways
946	{	896	contr = 0;
947	object *tmp = op->below;	897	}
948	remove_ob (op);
949	op->free (free_inventory);
950	op = tmp;
951	}
952	}
953	else
954	{ /* Put objects in inventory onto this space */
955	object *op = inv;
956		898
957	while (op)	899	void
958	{	900	object::destroy (bool destroy_inventory)
959	object *tmp = op->below;	901	{
960	remove_ob (op);	902	if (destroyed ())
		903	return;
961		904
962	if (QUERY_FLAG (op, FLAG_STARTEQUIP)	905	if (destroy_inventory)
963	|| QUERY_FLAG (op, FLAG_NO_DROP) || op->type == RUNE	906	destroy_inv (false);
964	|| op->type == TRAP || QUERY_FLAG (op, FLAG_IS_A_TEMPLATE))
965	free_object (op);
966	else
967	{
968	op->x = x;
969	op->y = y;
970	insert_ob_in_map (op, map, 0, 0); /* Insert in same map as the envir */
971	}
972		907
973	op = tmp;	908	attachable::destroy ();
974	}
975	}
976	}
977
978	/* Remove object from the active list */
979	speed = 0;
980	update_ob_speed (this);
981
982	unlink ();
983
984	SET_FLAG (this, FLAG_FREED);
985
986	mortals.push_back (this);
987	}	909	}
988		910
989	/*	911	/*
990	* sub_weight() recursively (outwards) subtracts a number from the	912	* sub_weight() recursively (outwards) subtracts a number from the
991	* weight of an object (and what is carried by it's environment(s)).	913	* weight of an object (and what is carried by it's environment(s)).
992	*/	914	*/
993		915	void
994	void sub_weight (object *op, signed long weight) {	916	sub_weight (object *op, signed long weight)
		917	{
995	while (op != NULL) {	918	while (op != NULL)
		919	{
996	if (op->type == CONTAINER) {	920	if (op->type == CONTAINER)
997	weight=(signed long)(weight*(100-op->stats.Str)/100);	921	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
998	}	922
999	op->carrying-=weight;	923	op->carrying -= weight;
1000	op = op->env;	924	op = op->env;
1001	}	925	}
1002	}	926	}
1003		927
1004	/* remove_ob(op):	928	/* op->remove ():
1005	* This function removes the object op from the linked list of objects	929	* This function removes the object op from the linked list of objects
1006	* which it is currently tied to. When this function is done, the	930	* which it is currently tied to. When this function is done, the
1007	* object will have no environment. If the object previously had an	931	* object will have no environment. If the object previously had an
1008	* environment, the x and y coordinates will be updated to	932	* environment, the x and y coordinates will be updated to
1009	* the previous environment.	933	* the previous environment.
1010	* Beware: This function is called from the editor as well!	934	* Beware: This function is called from the editor as well!
1011	*/	935	*/
1012		936	void
1013	void remove_ob(object *op) {	937	object::remove ()
		938	{
1014	object *tmp,*last=NULL;	939	object *tmp, *last = 0;
1015	object *otmp;	940	object *otmp;
1016	tag_t tag;
1017	int check_walk_off;
1018	mapstruct *m;
1019	sint16 x,y;
1020
1021		941
1022	if(QUERY_FLAG(op,FLAG_REMOVED)) {	942	if (QUERY_FLAG (this, FLAG_REMOVED))
1023	dump_object(op);	943	return;
1024	LOG(llevError,"Trying to remove removed object.\n%s\n",errmsg);
1025		944
1026	/* Changed it to always dump core in this case. As has been learned
1027	* in the past, trying to recover from errors almost always
1028	* make things worse, and this is a real error here - something
1029	* that should not happen.
1030	* Yes, if this was a mission critical app, trying to do something
1031	* to recover may make sense, but that is because failure of the app
1032	* may have other disastrous problems. Cf runs out of a script
1033	* so is easily enough restarted without any real problems.
1034	* MSW 2001-07-01
1035	*/
1036	abort();
1037	}
1038	if(op->more!=NULL)
1039	remove_ob(op->more);
1040
1041	SET_FLAG(op, FLAG_REMOVED);	945	SET_FLAG (this, FLAG_REMOVED);
		946	INVOKE_OBJECT (REMOVE, this);
1042		947
		948	if (more)
		949	more->remove ();
		950
1043	/*	951	/*
1044	* In this case, the object to be removed is in someones	952	* In this case, the object to be removed is in someones
1045	* inventory.	953	* inventory.
1046	*/	954	*/
1047	if(op->env!=NULL) {	955	if (env)
		956	{
1048	if(op->nrof)	957	if (nrof)
1049	sub_weight(op->env, op->weight*op->nrof);	958	sub_weight (env, weight * nrof);
1050	else	959	else
1051	sub_weight(op->env, op->weight+op->carrying);	960	sub_weight (env, weight + carrying);
1052		961
1053	/* NO_FIX_PLAYER is set when a great many changes are being	962	/* NO_FIX_PLAYER is set when a great many changes are being
1054	* made to players inventory. If set, avoiding the call	963	* made to players inventory. If set, avoiding the call
1055	* to save cpu time.	964	* to save cpu time.
1056	*/	965	*/
1057	if ((otmp=is_player_inv(op->env))!=NULL && otmp->contr &&	966	if ((otmp = in_player ()) && otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1058	!QUERY_FLAG(otmp,FLAG_NO_FIX_PLAYER))	967	otmp->update_stats ();
1059	fix_player(otmp);
1060		968
1061	if(op->above!=NULL)	969	if (above != NULL)
1062	op->above->below=op->below;	970	above->below = below;
1063	else	971	else
1064	op->env->inv=op->below;	972	env->inv = below;
1065		973
1066	if(op->below!=NULL)	974	if (below != NULL)
1067	op->below->above=op->above;	975	below->above = above;
1068		976
1069	/* we set up values so that it could be inserted into	977	/* we set up values so that it could be inserted into
1070	* the map, but we don't actually do that - it is up	978	* the map, but we don't actually do that - it is up
1071	* to the caller to decide what we want to do.	979	* to the caller to decide what we want to do.
		980	*/
		981	x = env->x, y = env->y;
		982	map = env->map;
		983	above = 0, below = 0;
		984	env = 0;
		985	}
		986	else if (map)
		987	{
		988	/* Re did the following section of code - it looks like it had
		989	* lots of logic for things we no longer care about
		990	*/
		991
		992	/* link the object above us */
		993	if (above)
		994	above->below = below;
		995	else
		996	map->at (x, y).top = below; /* we were top, set new top */
		997
		998	/* Relink the object below us, if there is one */
		999	if (below)
		1000	below->above = above;
		1001	else
		1002	{
		1003	/* Nothing below, which means we need to relink map object for this space
		1004	* use translated coordinates in case some oddness with map tiling is
		1005	* evident
1072	*/	1006	*/
1073	op->x=op->env->x,op->y=op->env->y;	1007	if (GET_MAP_OB (map, x, y) != this)
1074	op->map=op->env->map;	1008	{
1075	op->above=NULL,op->below=NULL;	1009	char *dump = dump_object (this);
1076	op->env=NULL;	1010	LOG (llevError,
		1011	"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);
		1012	free (dump);
		1013	dump = dump_object (GET_MAP_OB (map, x, y));
		1014	LOG (llevError, "%s\n", dump);
		1015	free (dump);
		1016	}
		1017
		1018	map->at (x, y).bot = above; /* goes on above it. */
		1019	}
		1020
		1021	above = 0;
		1022	below = 0;
		1023
		1024	if (map->in_memory == MAP_SAVING)
1077	return;	1025	return;
1078	}
1079		1026
1080	/* If we get here, we are removing it from a map */	1027	int check_walk_off = !flag [FLAG_NO_APPLY];
1081	if (op->map == NULL) return;
1082		1028
1083	x = op->x;	1029	for (tmp = map->at (x, y).bot; tmp; tmp = tmp->above)
1084	y = op->y;	1030	{
1085	m = get_map_from_coord(op->map, &x, &y);	1031	/* No point updating the players look faces if he is the object
1086		1032	* being removed.
1087	if (!m) {
1088	LOG(llevError,"remove_ob called when object was on map but appears to not be within valid coordinates? %s (%d,%d)\n",
1089	op->map->path, op->x, op->y);
1090	/* in old days, we used to set x and y to 0 and continue.
1091	* it seems if we get into this case, something is probablye
1092	* screwed up and should be fixed.
1093	*/	1033	*/
1094	abort();
1095	}
1096	if (op->map != m) {
1097	LOG(llevDebug,"remove_ob: Object not really on map it claimed to be on? %s != %s, %d,%d != %d,%d\n",
1098	op->map->path, m->path, op->x, op->y, x, y);
1099	}
1100		1034
1101	/* Re did the following section of code - it looks like it had	1035	if (tmp->type == PLAYER && tmp != this)
1102	* lots of logic for things we no longer care about	1036	{
1103	*/	1037	/* If a container that the player is currently using somehow gets
1104		1038	* removed (most likely destroyed), update the player view
1105	/* link the object above us */	1039	* appropriately.
1106	if (op->above)
1107	op->above->below=op->below;
1108	else
1109	SET_MAP_TOP(m,x,y,op->below); /* we were top, set new top */
1110
1111	/* Relink the object below us, if there is one */
1112	if(op->below) {
1113	op->below->above=op->above;
1114	} else {
1115	/* Nothing below, which means we need to relink map object for this space
1116	* use translated coordinates in case some oddness with map tiling is
1117	* evident
1118	*/	1040	*/
1119	if(GET_MAP_OB(m,x,y)!=op) {	1041	if (tmp->container == this)
1120	dump_object(op);	1042	{
1121	LOG(llevError,"remove_ob: GET_MAP_OB does not return object to be removed even though it appears to be on the bottom?\n%s\n", errmsg);	1043	flag [FLAG_APPLIED] = 0;
1122	dump_object(GET_MAP_OB(m,x,y));	1044	tmp->container = 0;
1123	LOG(llevError,"%s\n",errmsg);	1045	}
		1046
		1047	if (tmp->contr->ns)
		1048	tmp->contr->ns->floorbox_update ();
		1049	}
		1050
		1051	/* See if player moving off should effect something */
		1052	if (check_walk_off
		1053	&& ((move_type & tmp->move_off)
		1054	&& (move_type & ~tmp->move_off & ~tmp->move_block) == 0))
		1055	{
		1056	move_apply (tmp, this, 0);
		1057
		1058	if (destroyed ())
		1059	LOG (llevError, "BUG: remove_ob(): name %s, destroyed leaving object\n", tmp->debug_desc ());
		1060	}
		1061
		1062	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */
		1063
		1064	if (tmp->above == tmp)
		1065	tmp->above = 0;
		1066
		1067	last = tmp;
1124	}	1068	}
1125	SET_MAP_OB(m,x,y,op->above); /* goes on above it. */
1126	}
1127	op->above=NULL;
1128	op->below=NULL;
1129		1069
1130	if (op->map->in_memory == MAP_SAVING)
1131	return;
1132
1133	tag = op->count;
1134	check_walk_off = ! QUERY_FLAG (op, FLAG_NO_APPLY);
1135	for(tmp=GET_MAP_OB(m,x,y);tmp!=NULL;tmp=tmp->above) {
1136	/* No point updating the players look faces if he is the object
1137	* being removed.
1138	*/
1139
1140	if(tmp->type==PLAYER && tmp!=op) {
1141	/* If a container that the player is currently using somehow gets
1142	* removed (most likely destroyed), update the player view
1143	* appropriately.
1144	*/
1145	if (tmp->container==op) {
1146	CLEAR_FLAG(op, FLAG_APPLIED);
1147	tmp->container=NULL;
1148	}
1149	tmp->contr->socket.update_look=1;
1150	}
1151	/* See if player moving off should effect something */
1152	if (check_walk_off && ((op->move_type & tmp->move_off) &&
1153	(op->move_type & ~tmp->move_off & ~tmp->move_block)==0)) {
1154
1155	move_apply(tmp, op, NULL);
1156	if (was_destroyed (op, tag)) {
1157	LOG (llevError, "BUG: remove_ob(): name %s, archname %s destroyed "
1158	"leaving object\n", &tmp->name, &tmp->arch->name);
1159	}
1160	}
1161
1162	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */
1163
1164	if(tmp->above == tmp)
1165	tmp->above = NULL;
1166	last=tmp;
1167	}
1168	/* last == NULL of there are no objects on this space */	1070	/* last == NULL of there are no objects on this space */
1169	if (last==NULL) {	1071	if (!last)
1170	/* set P_NEED_UPDATE, otherwise update_position will complain. In theory,	1072	map->at (x, y).flags_ = P_NEED_UPDATE;
1171	* we could preserve the flags (GET_MAP_FLAGS), but update_position figures
1172	* those out anyways, and if there are any flags set right now, they won't
1173	* be correct anyways.
1174	*/
1175	SET_MAP_FLAGS(op->map, op->x, op->y, P_NEED_UPDATE);
1176	update_position(op->map, op->x, op->y);
1177	}
1178	else	1073	else
1179	update_object(last, UP_OBJ_REMOVE);	1074	update_object (last, UP_OBJ_REMOVE);
1180		1075
1181	if(QUERY_FLAG(op,FLAG_BLOCKSVIEW)|| (op->glow_radius != 0))	1076	if (flag [FLAG_BLOCKSVIEW] || glow_radius)
1182	update_all_los(op->map, op->x, op->y);	1077	update_all_los (map, x, y);
1183		1078	}
1184	}	1079	}
1185		1080
1186	/*	1081	/*
1187	* merge_ob(op,top):	1082	* merge_ob(op,top):
1188	*	1083	*
1189	* This function goes through all objects below and including top, and	1084	* This function goes through all objects below and including top, and
1190	* merges op to the first matching object.	1085	* merges op to the first matching object.
1191	* If top is NULL, it is calculated.	1086	* If top is NULL, it is calculated.
1192	* Returns pointer to object if it succeded in the merge, otherwise NULL	1087	* Returns pointer to object if it succeded in the merge, otherwise NULL
1193	*/	1088	*/
1194		1089	object *
1195	object *merge_ob(object *op, object *top) {	1090	merge_ob (object *op, object *top)
		1091	{
1196	if(!op->nrof)	1092	if (!op->nrof)
1197	return 0;	1093	return 0;
1198	if(top==NULL)	1094
		1095	if (top)
1199	for(top=op;top!=NULL&&top->above!=NULL;top=top->above);	1096	for (top = op; top && top->above; top = top->above)
		1097	;
		1098
1200	for(;top!=NULL;top=top->below) {	1099	for (; top; top = top->below)
		1100	{
1201	if(top==op)	1101	if (top == op)
1202	continue;	1102	continue;
1203	if (CAN_MERGE(op,top))	1103
1204	{	1104	if (object::can_merge (op, top))
		1105	{
1205	top->nrof+=op->nrof;	1106	top->nrof += op->nrof;
		1107
1206	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/	1108	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/
1207	op->weight = 0; /* Don't want any adjustements now */	1109	op->weight = 0; /* Don't want any adjustements now */
1208	remove_ob(op);	1110	op->destroy ();
1209	free_object(op);
1210	return top;	1111	return top;
1211	}	1112	}
1212	}	1113	}
		1114
1213	return NULL;	1115	return 0;
1214	}	1116	}
1215		1117
1216	/*	1118	/*
1217	* same as insert_ob_in_map except it handle separate coordinates and do a clean	1119	* same as insert_ob_in_map except it handle separate coordinates and do a clean
1218	* job preparing multi-part monsters	1120	* job preparing multi-part monsters
1219	*/	1121	*/
		1122	object *
1220	object *insert_ob_in_map_at(object *op, mapstruct *m, object *originator, int flag, int x, int y){	1123	insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)
1221	object* tmp;	1124	{
1222	if (op->head)	1125	for (object *tmp = op->head_ (); tmp; tmp = tmp->more)
1223	op=op->head;	1126	{
1224	for (tmp=op;tmp;tmp=tmp->more){
1225	tmp->x=x+tmp->arch->clone.x;	1127	tmp->x = x + tmp->arch->clone.x;
1226	tmp->y=y+tmp->arch->clone.y;	1128	tmp->y = y + tmp->arch->clone.y;
1227	}	1129	}
		1130
1228	return insert_ob_in_map (op, m, originator, flag);	1131	return insert_ob_in_map (op, m, originator, flag);
1229	}	1132	}
1230		1133
1231	/*	1134	/*
1232	* insert_ob_in_map (op, map, originator, flag):	1135	* insert_ob_in_map (op, map, originator, flag):
1233	* This function inserts the object in the two-way linked list	1136	* This function inserts the object in the two-way linked list
…		…
1246	* Return value:	1149	* Return value:
1247	* new object if 'op' was merged with other object	1150	* new object if 'op' was merged with other object
1248	* NULL if 'op' was destroyed	1151	* NULL if 'op' was destroyed
1249	* just 'op' otherwise	1152	* just 'op' otherwise
1250	*/	1153	*/
1251		1154	object *
1252	object *insert_ob_in_map (object *op, mapstruct *m, object *originator, int flag)	1155	insert_ob_in_map (object *op, maptile *m, object *originator, int flag)
1253	{	1156	{
1254	object *tmp, *top, *floor=NULL;	1157	object *tmp, *top, *floor = NULL;
1255	sint16 x,y;	1158	sint16 x, y;
1256		1159
1257	if (QUERY_FLAG (op, FLAG_FREED)) {	1160	if (QUERY_FLAG (op, FLAG_FREED))
		1161	{
1258	LOG (llevError, "Trying to insert freed object!\n");	1162	LOG (llevError, "Trying to insert freed object!\n");
1259	return NULL;	1163	return NULL;
		1164	}
		1165
		1166	if (m == NULL)
1260	}	1167	{
1261	if(m==NULL) {
1262	dump_object(op);	1168	char *dump = dump_object (op);
1263	LOG(llevError,"Trying to insert in null-map!\n%s\n",errmsg);	1169	LOG (llevError, "Trying to insert in null-map!\n%s\n", dump);
		1170	free (dump);
1264	return op;	1171	return op;
1265	}	1172	}
		1173
1266	if(out_of_map(m,op->x,op->y)) {	1174	if (out_of_map (m, op->x, op->y))
		1175	{
1267	dump_object(op);	1176	char *dump = dump_object (op);
1268	LOG(llevError,"Trying to insert object outside the map.\n%s\n", errmsg);	1177	LOG (llevError, "Trying to insert object outside the map.\n%s\n", dump);
1269	#ifdef MANY_CORES	1178	#ifdef MANY_CORES
1270	/* Better to catch this here, as otherwise the next use of this object	1179	/* Better to catch this here, as otherwise the next use of this object
1271	* is likely to cause a crash. Better to find out where it is getting	1180	* is likely to cause a crash. Better to find out where it is getting
1272	* improperly inserted.	1181	* improperly inserted.
1273	*/	1182	*/
1274	abort();	1183	abort ();
1275	#endif	1184	#endif
		1185	free (dump);
1276	return op;	1186	return op;
1277	}	1187	}
		1188
1278	if(!QUERY_FLAG(op,FLAG_REMOVED)) {	1189	if (!QUERY_FLAG (op, FLAG_REMOVED))
		1190	{
1279	dump_object(op);	1191	char *dump = dump_object (op);
1280	LOG(llevError,"Trying to insert (map) inserted object.\n%s\n", errmsg);	1192	LOG (llevError, "Trying to insert (map) inserted object.\n%s\n", dump);
		1193	free (dump);
1281	return op;	1194	return op;
		1195	}
		1196
		1197	if (op->more)
1282	}	1198	{
1283	if(op->more!=NULL) {
1284	/* The part may be on a different map. */	1199	/* The part may be on a different map. */
1285		1200
1286	object *more = op->more;	1201	object *more = op->more;
1287		1202
1288	/* We really need the caller to normalize coordinates - if	1203	/* We really need the caller to normalize coordinates - if
1289	* we set the map, that doesn't work if the location is within	1204	* we set the map, that doesn't work if the location is within
1290	* a map and this is straddling an edge. So only if coordinate	1205	* a map and this is straddling an edge. So only if coordinate
1291	* is clear wrong do we normalize it.	1206	* is clear wrong do we normalize it.
1292	*/	1207	*/
1293	if (OUT_OF_REAL_MAP(more->map, more->x, more->y)) {	1208	if (OUT_OF_REAL_MAP (more->map, more->x, more->y))
1294	more->map = get_map_from_coord(m, &more->x, &more->y);	1209	more->map = get_map_from_coord (m, &more->x, &more->y);
1295	} else if (!more->map) {	1210	else if (!more->map)
		1211	{
1296	/* For backwards compatibility - when not dealing with tiled maps,	1212	/* For backwards compatibility - when not dealing with tiled maps,
1297	* more->map should always point to the parent.	1213	* more->map should always point to the parent.
1298	*/	1214	*/
1299	more->map = m;	1215	more->map = m;
1300	}	1216	}
1301		1217
1302	if (insert_ob_in_map(more, more->map, originator, flag) == NULL) {	1218	if (insert_ob_in_map (more, more->map, originator, flag) == NULL)
		1219	{
1303	if ( ! op->head)	1220	if (!op->head)
1304	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");	1221	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");
		1222
1305	return NULL;	1223	return 0;
1306	}	1224	}
1307	}	1225	}
		1226
1308	CLEAR_FLAG(op,FLAG_REMOVED);	1227	CLEAR_FLAG (op, FLAG_REMOVED);
1309		1228
1310	/* Ideally, the caller figures this out. However, it complicates a lot	1229	/* Ideally, the caller figures this out. However, it complicates a lot
1311	* of areas of callers (eg, anything that uses find_free_spot would now	1230	* of areas of callers (eg, anything that uses find_free_spot would now
1312	* need extra work	1231	* need extra work
1313	*/	1232	*/
1314	op->map=get_map_from_coord(m, &op->x, &op->y);	1233	op->map = get_map_from_coord (m, &op->x, &op->y);
1315	x = op->x;	1234	x = op->x;
1316	y = op->y;	1235	y = op->y;
1317		1236
1318	/* this has to be done after we translate the coordinates.	1237	/* this has to be done after we translate the coordinates.
1319	*/	1238	*/
1320	if(op->nrof && !(flag & INS_NO_MERGE)) {	1239	if (op->nrof && !(flag & INS_NO_MERGE))
1321	for(tmp=GET_MAP_OB(op->map,x,y);tmp!=NULL;tmp=tmp->above)	1240	for (tmp = GET_MAP_OB (op->map, x, y); tmp != NULL; tmp = tmp->above)
1322	if (CAN_MERGE(op,tmp)) {	1241	if (object::can_merge (op, tmp))
		1242	{
1323	op->nrof+=tmp->nrof;	1243	op->nrof += tmp->nrof;
1324	remove_ob(tmp);	1244	tmp->destroy ();
1325	free_object(tmp);	1245	}
		1246
		1247	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */
		1248	CLEAR_FLAG (op, FLAG_INV_LOCKED);
		1249
		1250	if (!QUERY_FLAG (op, FLAG_ALIVE))
		1251	CLEAR_FLAG (op, FLAG_NO_STEAL);
		1252
		1253	if (flag & INS_BELOW_ORIGINATOR)
		1254	{
		1255	if (originator->map != op->map || originator->x != op->x || originator->y != op->y)
		1256	{
		1257	LOG (llevError, "insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");
		1258	abort ();
		1259	}
		1260
		1261	op->above = originator;
		1262	op->below = originator->below;
		1263
		1264	if (op->below)
		1265	op->below->above = op;
		1266	else
		1267	op->ms ().bot = op;
		1268
		1269	/* since *below* originator, no need to update top */
		1270	originator->below = op;
		1271	}
		1272	else
		1273	{
		1274	/* If there are other objects, then */
		1275	if ((!(flag & INS_MAP_LOAD)) && ((top = GET_MAP_OB (op->map, op->x, op->y)) != NULL))
		1276	{
		1277	object *last = NULL;
		1278
		1279	/*
		1280	* If there are multiple objects on this space, we do some trickier handling.
		1281	* We've already dealt with merging if appropriate.
		1282	* Generally, we want to put the new object on top. But if
		1283	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last
		1284	* floor, we want to insert above that and no further.
		1285	* Also, if there are spell objects on this space, we stop processing
		1286	* once we get to them. This reduces the need to traverse over all of
		1287	* them when adding another one - this saves quite a bit of cpu time
		1288	* when lots of spells are cast in one area. Currently, it is presumed
		1289	* that flying non pickable objects are spell objects.
		1290	*/
		1291
		1292	while (top != NULL)
		1293	{
		1294	if (QUERY_FLAG (top, FLAG_IS_FLOOR) || QUERY_FLAG (top, FLAG_OVERLAY_FLOOR))
		1295	floor = top;
		1296
		1297	if (QUERY_FLAG (top, FLAG_NO_PICK) && (top->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (top, FLAG_IS_FLOOR))
		1298	{
		1299	/* We insert above top, so we want this object below this */
		1300	top = top->below;
		1301	break;
		1302	}
		1303
		1304	last = top;
		1305	top = top->above;
1326	}	1306	}
1327	}
1328		1307
1329	CLEAR_FLAG(op,FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */	1308	/* Don't want top to be NULL, so set it to the last valid object */
1330	CLEAR_FLAG(op, FLAG_INV_LOCKED);	1309	top = last;
1331	if (!QUERY_FLAG(op, FLAG_ALIVE))
1332	CLEAR_FLAG(op, FLAG_NO_STEAL);
1333		1310
1334	if (flag & INS_BELOW_ORIGINATOR) {	1311	/* We let update_position deal with figuring out what the space
1335	if (originator->map != op->map || originator->x != op->x ||	1312	* looks like instead of lots of conditions here.
1336	originator->y != op->y) {	1313	* makes things faster, and effectively the same result.
1337	LOG(llevError,"insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");	1314	*/
1338	abort();	1315
		1316	/* Have object 'fall below' other objects that block view.
		1317	* Unless those objects are exits, type 66
		1318	* If INS_ON_TOP is used, don't do this processing
		1319	* Need to find the object that in fact blocks view, otherwise
		1320	* stacking is a bit odd.
		1321	*/
		1322	if (!(flag & INS_ON_TOP) &&
		1323	(get_map_flags (op->map, 0, op->x, op->y, 0, 0) & P_BLOCKSVIEW) && (op->face && !op->face->visibility))
		1324	{
		1325	for (last = top; last != floor; last = last->below)
		1326	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))
		1327	break;
		1328	/* Check to see if we found the object that blocks view,
		1329	* and make sure we have a below pointer for it so that
		1330	* we can get inserted below this one, which requires we
		1331	* set top to the object below us.
		1332	*/
		1333	if (last && last->below && last != floor)
		1334	top = last->below;
		1335	}
		1336	} /* If objects on this space */
		1337
		1338	if (flag & INS_MAP_LOAD)
		1339	top = GET_MAP_TOP (op->map, op->x, op->y);
		1340
		1341	if (flag & INS_ABOVE_FLOOR_ONLY)
		1342	top = floor;
		1343
		1344	/* Top is the object that our object (op) is going to get inserted above.
		1345	*/
		1346
		1347	/* First object on this space */
		1348	if (!top)
		1349	{
		1350	op->above = GET_MAP_OB (op->map, op->x, op->y);
		1351
		1352	if (op->above)
		1353	op->above->below = op;
		1354
		1355	op->below = NULL;
		1356	op->ms ().bot = op;
1339	}	1357	}
1340	op->above = originator;
1341	op->below = originator->below;
1342	if (op->below) op->below->above = op;
1343	else SET_MAP_OB(op->map, op->x, op->y, op);
1344	/* since *below* originator, no need to update top */
1345	originator->below = op;
1346	} else {	1358	else
1347	/* If there are other objects, then */
1348	if((! (flag & INS_MAP_LOAD)) && ((top=GET_MAP_OB(op->map,op->x,op->y))!=NULL)) {
1349	object *last=NULL;
1350	/*
1351	* If there are multiple objects on this space, we do some trickier handling.
1352	* We've already dealt with merging if appropriate.
1353	* Generally, we want to put the new object on top. But if
1354	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last
1355	* floor, we want to insert above that and no further.
1356	* Also, if there are spell objects on this space, we stop processing
1357	* once we get to them. This reduces the need to traverse over all of
1358	* them when adding another one - this saves quite a bit of cpu time
1359	* when lots of spells are cast in one area. Currently, it is presumed
1360	* that flying non pickable objects are spell objects.
1361	*/
1362
1363	while (top != NULL) {
1364	if (QUERY_FLAG(top, FLAG_IS_FLOOR) ||
1365	QUERY_FLAG(top, FLAG_OVERLAY_FLOOR)) floor = top;
1366	if (QUERY_FLAG(top, FLAG_NO_PICK)
1367	&& (top->move_type & (MOVE_FLY_LOW |MOVE_FLY_HIGH))
1368	&& !QUERY_FLAG(top, FLAG_IS_FLOOR))
1369	{
1370	/* We insert above top, so we want this object below this */
1371	top=top->below;
1372	break;
1373	}
1374	last = top;
1375	top = top->above;
1376	}
1377	/* Don't want top to be NULL, so set it to the last valid object */
1378	top = last;
1379
1380	/* We let update_position deal with figuring out what the space
1381	* looks like instead of lots of conditions here.
1382	* makes things faster, and effectively the same result.
1383	*/
1384
1385	/* Have object 'fall below' other objects that block view.
1386	* Unless those objects are exits, type 66
1387	* If INS_ON_TOP is used, don't do this processing
1388	* Need to find the object that in fact blocks view, otherwise
1389	* stacking is a bit odd.
1390	*/
1391	if (!(flag & INS_ON_TOP) &&
1392	(get_map_flags(op->map, NULL, op->x, op->y, NULL, NULL) & P_BLOCKSVIEW) &&
1393	(op->face && !op->face->visibility)) {
1394	for (last=top; last != floor; last=last->below)
1395	if (QUERY_FLAG(last, FLAG_BLOCKSVIEW)&&(last->type != EXIT)) break;
1396	/* Check to see if we found the object that blocks view,
1397	* and make sure we have a below pointer for it so that
1398	* we can get inserted below this one, which requires we
1399	* set top to the object below us.
1400	*/
1401	if (last && last->below && last != floor) top=last->below;
1402	}
1403	} /* If objects on this space */
1404	if (flag & INS_MAP_LOAD)
1405	top = GET_MAP_TOP(op->map,op->x,op->y);
1406	if (flag & INS_ABOVE_FLOOR_ONLY) top = floor;
1407
1408	/* Top is the object that our object (op) is going to get inserted above.
1409	*/
1410
1411	/* First object on this space */
1412	if (!top) {
1413	op->above = GET_MAP_OB(op->map, op->x, op->y);
1414	if (op->above) op->above->below = op;
1415	op->below = NULL;
1416	SET_MAP_OB(op->map, op->x, op->y, op);
1417	} else { /* get inserted into the stack above top */	1359	{ /* get inserted into the stack above top */
1418	op->above = top->above;	1360	op->above = top->above;
		1361
		1362	if (op->above)
1419	if (op->above) op->above->below = op;	1363	op->above->below = op;
		1364
1420	op->below = top;	1365	op->below = top;
1421	top->above = op;	1366	top->above = op;
1422	}	1367	}
		1368
1423	if (op->above==NULL)	1369	if (op->above == NULL)
1424	SET_MAP_TOP(op->map,op->x, op->y, op);	1370	op->ms ().top = op;
1425	} /* else not INS_BELOW_ORIGINATOR */	1371	} /* else not INS_BELOW_ORIGINATOR */
1426		1372
1427	if(op->type==PLAYER)	1373	if (op->type == PLAYER)
1428	op->contr->do_los=1;	1374	op->contr->do_los = 1;
1429		1375
1430	/* If we have a floor, we know the player, if any, will be above	1376	/* If we have a floor, we know the player, if any, will be above
1431	* it, so save a few ticks and start from there.	1377	* it, so save a few ticks and start from there.
1432	*/	1378	*/
1433	if (!(flag & INS_MAP_LOAD))	1379	if (!(flag & INS_MAP_LOAD))
1434	for(tmp=floor?floor:GET_MAP_OB(op->map,op->x,op->y);tmp!=NULL;tmp=tmp->above) {	1380	if (object *pl = op->ms ().player ())
1435	if (tmp->type == PLAYER)	1381	if (pl->contr->ns)
1436	tmp->contr->socket.update_look=1;	1382	pl->contr->ns->floorbox_update ();
1437	}
1438		1383
1439	/* If this object glows, it may affect lighting conditions that are	1384	/* If this object glows, it may affect lighting conditions that are
1440	* visible to others on this map. But update_all_los is really	1385	* visible to others on this map. But update_all_los is really
1441	* an inefficient way to do this, as it means los for all players	1386	* an inefficient way to do this, as it means los for all players
1442	* on the map will get recalculated. The players could very well	1387	* on the map will get recalculated. The players could very well
1443	* be far away from this change and not affected in any way -	1388	* be far away from this change and not affected in any way -
1444	* this should get redone to only look for players within range,	1389	* this should get redone to only look for players within range,
1445	* or just updating the P_NEED_UPDATE for spaces within this area	1390	* or just updating the P_NEED_UPDATE for spaces within this area
1446	* of effect may be sufficient.	1391	* of effect may be sufficient.
1447	*/	1392	*/
1448	if(MAP_DARKNESS(op->map) && (op->glow_radius != 0))	1393	if (op->map->darkness && (op->glow_radius != 0))
1449	update_all_los(op->map, op->x, op->y);	1394	update_all_los (op->map, op->x, op->y);
1450		1395
1451
1452	/* updates flags (blocked, alive, no magic, etc) for this map space */	1396	/* updates flags (blocked, alive, no magic, etc) for this map space */
1453	update_object(op,UP_OBJ_INSERT);	1397	update_object (op, UP_OBJ_INSERT);
1454		1398
		1399	INVOKE_OBJECT (INSERT, op);
1455		1400
1456	/* Don't know if moving this to the end will break anything. However,	1401	/* Don't know if moving this to the end will break anything. However,
1457	* we want to have update_look set above before calling this.	1402	* we want to have floorbox_update called before calling this.
1458	*	1403	*
1459	* check_move_on() must be after this because code called from	1404	* check_move_on() must be after this because code called from
1460	* check_move_on() depends on correct map flags (so functions like	1405	* check_move_on() depends on correct map flags (so functions like
1461	* blocked() and wall() work properly), and these flags are updated by	1406	* blocked() and wall() work properly), and these flags are updated by
1462	* update_object().	1407	* update_object().
1463	*/	1408	*/
1464		1409
1465	/* if this is not the head or flag has been passed, don't check walk on status */	1410	/* if this is not the head or flag has been passed, don't check walk on status */
1466
1467	if (!(flag & INS_NO_WALK_ON) && !op->head) {	1411	if (!(flag & INS_NO_WALK_ON) && !op->head)
		1412	{
1468	if (check_move_on(op, originator))	1413	if (check_move_on (op, originator))
1469	return NULL;	1414	return 0;
1470		1415
1471	/* If we are a multi part object, lets work our way through the check	1416	/* If we are a multi part object, lets work our way through the check
1472	* walk on's.	1417	* walk on's.
1473	*/	1418	*/
1474	for (tmp=op->more; tmp!=NULL; tmp=tmp->more)	1419	for (tmp = op->more; tmp != NULL; tmp = tmp->more)
1475	if (check_move_on (tmp, originator))	1420	if (check_move_on (tmp, originator))
1476	return NULL;	1421	return 0;
1477	}	1422	}
		1423
1478	return op;	1424	return op;
1479	}	1425	}
1480		1426
1481	/* this function inserts an object in the map, but if it	1427	/* this function inserts an object in the map, but if it
1482	* finds an object of its own type, it'll remove that one first.	1428	* finds an object of its own type, it'll remove that one first.
1483	* op is the object to insert it under: supplies x and the map.	1429	* op is the object to insert it under: supplies x and the map.
1484	*/	1430	*/
		1431	void
1485	void replace_insert_ob_in_map(const char *arch_string, object *op) {	1432	replace_insert_ob_in_map (const char *arch_string, object *op)
1486	object *tmp;	1433	{
1487	object *tmp1;	1434	object *tmp, *tmp1;
1488		1435
1489	/* first search for itself and remove any old instances */	1436	/* first search for itself and remove any old instances */
1490		1437
1491	for(tmp=GET_MAP_OB(op->map,op->x,op->y); tmp!=NULL; tmp=tmp->above) {	1438	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)
1492	if(!strcmp(tmp->arch->name,arch_string)) /* same archetype */ {	1439	if (!strcmp (tmp->arch->name, arch_string)) /* same archetype */
1493	remove_ob(tmp);	1440	tmp->destroy ();
1494	free_object(tmp);
1495	}
1496	}
1497		1441
1498	tmp1=arch_to_object(find_archetype(arch_string));	1442	tmp1 = arch_to_object (archetype::find (arch_string));
1499		1443
1500		1444	tmp1->x = op->x;
1501	tmp1->x = op->x; tmp1->y = op->y;	1445	tmp1->y = op->y;
1502	insert_ob_in_map(tmp1,op->map,op,0);	1446	insert_ob_in_map (tmp1, op->map, op, 0);
1503	}	1447	}
		1448
		1449	object *
		1450	object::insert_at (object *where, object *originator, int flags)
		1451	{
		1452	where->map->insert (this, where->x, where->y, originator, flags);
		1453	}
1504		1454
1505	/*	1455	/*
1506	* get_split_ob(ob,nr) splits up ob into two parts. The part which	1456	* get_split_ob(ob,nr) splits up ob into two parts. The part which
1507	* is returned contains nr objects, and the remaining parts contains	1457	* is returned contains nr objects, and the remaining parts contains
1508	* the rest (or is removed and freed if that number is 0).	1458	* the rest (or is removed and freed if that number is 0).
1509	* On failure, NULL is returned, and the reason put into the	1459	* On failure, NULL is returned, and the reason put into the
1510	* global static errmsg array.	1460	* global static errmsg array.
1511	*/	1461	*/
1512		1462	object *
1513	object *get_split_ob(object *orig_ob, uint32 nr) {	1463	get_split_ob (object *orig_ob, uint32 nr)
		1464	{
1514	object *newob;	1465	object *newob;
1515	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);	1466	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);
1516		1467
1517	if(orig_ob->nrof<nr) {	1468	if (orig_ob->nrof < nr)
1518	sprintf(errmsg,"There are only %d %ss.",	1469	{
1519	orig_ob->nrof?orig_ob->nrof:1, &orig_ob->name);	1470	sprintf (errmsg, "There are only %d %ss.", orig_ob->nrof ? orig_ob->nrof : 1, &orig_ob->name);
1520	return NULL;	1471	return NULL;
1521	}	1472	}
		1473
1522	newob = object_create_clone(orig_ob);	1474	newob = object_create_clone (orig_ob);
		1475
1523	if((orig_ob->nrof-=nr)<1) {	1476	if ((orig_ob->nrof -= nr) < 1)
1524	if ( ! is_removed)	1477	orig_ob->destroy (1);
1525	remove_ob(orig_ob);
1526	free_object2(orig_ob, 1);
1527	}
1528	else if ( ! is_removed) {	1478	else if (!is_removed)
		1479	{
1529	if(orig_ob->env!=NULL)	1480	if (orig_ob->env != NULL)
1530	sub_weight (orig_ob->env,orig_ob->weight*nr);	1481	sub_weight (orig_ob->env, orig_ob->weight * nr);
1531	if (orig_ob->env == NULL && orig_ob->map->in_memory!=MAP_IN_MEMORY) {	1482	if (orig_ob->env == NULL && orig_ob->map->in_memory != MAP_IN_MEMORY)
		1483	{
1532	strcpy(errmsg, "Tried to split object whose map is not in memory.");	1484	strcpy (errmsg, "Tried to split object whose map is not in memory.");
1533	LOG(llevDebug,
1534	"Error, Tried to split object whose map is not in memory.\n");	1485	LOG (llevDebug, "Error, Tried to split object whose map is not in memory.\n");
1535	return NULL;	1486	return NULL;
1536	}	1487	}
1537	}	1488	}
		1489
1538	newob->nrof=nr;	1490	newob->nrof = nr;
1539		1491
1540	return newob;	1492	return newob;
1541	}	1493	}
1542		1494
1543	/*	1495	/*
1544	* decrease_ob_nr(object, number) decreases a specified number from	1496	* decrease_ob_nr(object, number) decreases a specified number from
1545	* the amount of an object. If the amount reaches 0, the object	1497	* the amount of an object. If the amount reaches 0, the object
1546	* is subsequently removed and freed.	1498	* is subsequently removed and freed.
1547	*	1499	*
1548	* Return value: 'op' if something is left, NULL if the amount reached 0	1500	* Return value: 'op' if something is left, NULL if the amount reached 0
1549	*/	1501	*/
1550		1502
		1503	object *
1551	object *decrease_ob_nr (object *op, uint32 i)	1504	decrease_ob_nr (object *op, uint32 i)
1552	{	1505	{
1553	object *tmp;	1506	object *tmp;
1554	player *pl;
1555		1507
1556	if (i == 0) /* objects with op->nrof require this check */	1508	if (i == 0) /* objects with op->nrof require this check */
1557	return op;	1509	return op;
1558		1510
1559	if (i > op->nrof)	1511	if (i > op->nrof)
1560	i = op->nrof;	1512	i = op->nrof;
1561		1513
1562	if (QUERY_FLAG (op, FLAG_REMOVED))	1514	if (QUERY_FLAG (op, FLAG_REMOVED))
		1515	op->nrof -= i;
		1516	else if (op->env)
		1517	{
		1518	/* is this object in the players inventory, or sub container
		1519	* therein?
		1520	*/
		1521	tmp = op->in_player ();
		1522	/* nope. Is this a container the player has opened?
		1523	* If so, set tmp to that player.
		1524	* IMO, searching through all the players will mostly
		1525	* likely be quicker than following op->env to the map,
		1526	* and then searching the map for a player.
		1527	*/
		1528	if (!tmp)
		1529	for_all_players (pl)
		1530	if (pl->ob->container == op->env)
		1531	{
		1532	tmp = pl->ob;
		1533	break;
		1534	}
		1535
		1536	if (i < op->nrof)
		1537	{
		1538	sub_weight (op->env, op->weight * i);
		1539	op->nrof -= i;
		1540	if (tmp)
		1541	esrv_send_item (tmp, op);
		1542	}
		1543	else
		1544	{
		1545	op->remove ();
		1546	op->nrof = 0;
		1547	if (tmp)
		1548	esrv_del_item (tmp->contr, op->count);
		1549	}
1563	{	1550	}
		1551	else
		1552	{
		1553	object *above = op->above;
		1554
		1555	if (i < op->nrof)
1564	op->nrof -= i;	1556	op->nrof -= i;
1565	}	1557	else
1566	else if (op->env != NULL)
1567	{
1568	/* is this object in the players inventory, or sub container
1569	* therein?
1570	*/	1558	{
1571	tmp = is_player_inv (op->env);	1559	op->remove ();
1572	/* nope. Is this a container the player has opened?	1560	op->nrof = 0;
1573	* If so, set tmp to that player.
1574	* IMO, searching through all the players will mostly
1575	* likely be quicker than following op->env to the map,
1576	* and then searching the map for a player.
1577	*/
1578	if (!tmp) {
1579	for (pl=first_player; pl; pl=pl->next)
1580	if (pl->ob->container == op->env) break;
1581	if (pl) tmp=pl->ob;
1582	else tmp=NULL;
1583	}	1561	}
1584		1562
1585	if (i < op->nrof) {
1586	sub_weight (op->env, op->weight * i);
1587	op->nrof -= i;
1588	if (tmp) {
1589	esrv_send_item(tmp, op);
1590	}
1591	} else {
1592	remove_ob (op);
1593	op->nrof = 0;
1594	if (tmp) {
1595	esrv_del_item(tmp->contr, op->count);
1596	}
1597	}
1598	}
1599	else
1600	{
1601	object *above = op->above;
1602
1603	if (i < op->nrof) {
1604	op->nrof -= i;
1605	} else {
1606	remove_ob (op);
1607	op->nrof = 0;
1608	}
1609	/* Since we just removed op, op->above is null */	1563	/* Since we just removed op, op->above is null */
1610	for (tmp = above; tmp != NULL; tmp = tmp->above)	1564	for (tmp = above; tmp; tmp = tmp->above)
1611	if (tmp->type == PLAYER) {	1565	if (tmp->type == PLAYER)
		1566	{
1612	if (op->nrof)	1567	if (op->nrof)
1613	esrv_send_item(tmp, op);	1568	esrv_send_item (tmp, op);
1614	else	1569	else
1615	esrv_del_item(tmp->contr, op->count);	1570	esrv_del_item (tmp->contr, op->count);
1616	}	1571	}
1617	}	1572	}
1618		1573
1619	if (op->nrof) {	1574	if (op->nrof)
1620	return op;	1575	return op;
1621	} else {	1576	else
1622	free_object (op);	1577	{
		1578	op->destroy ();
1623	return NULL;	1579	return 0;
1624	}	1580	}
1625	}	1581	}
1626		1582
1627	/*	1583	/*
1628	* add_weight(object, weight) adds the specified weight to an object,	1584	* add_weight(object, weight) adds the specified weight to an object,
1629	* and also updates how much the environment(s) is/are carrying.	1585	* and also updates how much the environment(s) is/are carrying.
1630	*/	1586	*/
1631		1587
		1588	void
1632	void add_weight (object *op, signed long weight) {	1589	add_weight (object *op, signed long weight)
		1590	{
1633	while (op!=NULL) {	1591	while (op != NULL)
		1592	{
1634	if (op->type == CONTAINER) {	1593	if (op->type == CONTAINER)
1635	weight=(signed long)(weight*(100-op->stats.Str)/100);	1594	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1636	}	1595
1637	op->carrying+=weight;	1596	op->carrying += weight;
1638	op=op->env;	1597	op = op->env;
1639	}	1598	}
1640	}	1599	}
1641		1600
		1601	object *
		1602	insert_ob_in_ob (object *op, object *where)
		1603	{
		1604	if (!where)
		1605	{
		1606	char *dump = dump_object (op);
		1607	LOG (llevError, "Trying to put object in NULL.\n%s\n", dump);
		1608	free (dump);
		1609	return op;
		1610	}
		1611
		1612	if (where->head)
		1613	{
		1614	LOG (llevDebug, "Warning: Tried to insert object into wrong part of multipart object.\n");
		1615	where = where->head;
		1616	}
		1617
		1618	return where->insert (op);
		1619	}
		1620
1642	/*	1621	/*
1643	* insert_ob_in_ob(op,environment):	1622	* env->insert (op)
1644	* This function inserts the object op in the linked list	1623	* This function inserts the object op in the linked list
1645	* inside the object environment.	1624	* inside the object environment.
1646	*	1625	*
1647	* Eneq(@csd.uu.se): Altered insert_ob_in_ob to make things picked up enter
1648	* the inventory at the last position or next to other objects of the same
1649	* type.
1650	* Frank: Now sorted by type, archetype and magic!
1651	*
1652	* The function returns now pointer to inserted item, and return value can	1626	* The function returns now pointer to inserted item, and return value can
1653	* be != op, if items are merged. -Tero	1627	* be != op, if items are merged. -Tero
1654	*/	1628	*/
1655		1629
1656	object *insert_ob_in_ob(object *op,object *where) {	1630	object *
		1631	object::insert (object *op)
		1632	{
1657	object *tmp, *otmp;	1633	object *tmp, *otmp;
1658		1634
1659	if(!QUERY_FLAG(op,FLAG_REMOVED)) {	1635	if (!QUERY_FLAG (op, FLAG_REMOVED))
1660	dump_object(op);	1636	op->remove ();
1661	LOG(llevError,"Trying to insert (ob) inserted object.\n%s\n", errmsg);	1637
1662	return op;
1663	}
1664	if(where==NULL) {
1665	dump_object(op);
1666	LOG(llevError,"Trying to put object in NULL.\n%s\n", errmsg);
1667	return op;
1668	}
1669	if (where->head) {
1670	LOG(llevDebug,
1671	"Warning: Tried to insert object wrong part of multipart object.\n");
1672	where = where->head;
1673	}
1674	if (op->more) {	1638	if (op->more)
		1639	{
1675	LOG(llevError, "Tried to insert multipart object %s (%d)\n",	1640	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);
1676	&op->name, op->count);
1677	return op;	1641	return op;
1678	}	1642	}
		1643
1679	CLEAR_FLAG(op, FLAG_OBJ_ORIGINAL);	1644	CLEAR_FLAG (op, FLAG_OBJ_ORIGINAL);
1680	CLEAR_FLAG(op, FLAG_REMOVED);	1645	CLEAR_FLAG (op, FLAG_REMOVED);
1681	if(op->nrof) {	1646	if (op->nrof)
		1647	{
1682	for(tmp=where->inv;tmp!=NULL;tmp=tmp->below)	1648	for (tmp = inv; tmp != NULL; tmp = tmp->below)
1683	if ( CAN_MERGE(tmp,op) ) {	1649	if (object::can_merge (tmp, op))
		1650	{
1684	/* return the original object and remove inserted object	1651	/* return the original object and remove inserted object
1685	(client needs the original object) */	1652	(client needs the original object) */
1686	tmp->nrof += op->nrof;	1653	tmp->nrof += op->nrof;
1687	/* Weight handling gets pretty funky. Since we are adding to	1654	/* Weight handling gets pretty funky. Since we are adding to
1688	* tmp->nrof, we need to increase the weight.	1655	* tmp->nrof, we need to increase the weight.
1689	*/	1656	*/
1690	add_weight (where, op->weight*op->nrof);	1657	add_weight (this, op->weight * op->nrof);
1691	SET_FLAG(op, FLAG_REMOVED);	1658	SET_FLAG (op, FLAG_REMOVED);
1692	free_object(op); /* free the inserted object */	1659	op->destroy (); /* free the inserted object */
1693	op = tmp;	1660	op = tmp;
1694	remove_ob (op); /* and fix old object's links */	1661	op->remove (); /* and fix old object's links */
1695	CLEAR_FLAG(op, FLAG_REMOVED);	1662	CLEAR_FLAG (op, FLAG_REMOVED);
1696	break;	1663	break;
1697	}	1664	}
1698		1665
1699	/* I assume combined objects have no inventory	1666	/* I assume combined objects have no inventory
1700	* We add the weight - this object could have just been removed	1667	* We add the weight - this object could have just been removed
1701	* (if it was possible to merge). calling remove_ob will subtract	1668	* (if it was possible to merge). calling remove_ob will subtract
1702	* the weight, so we need to add it in again, since we actually do	1669	* the weight, so we need to add it in again, since we actually do
1703	* the linking below	1670	* the linking below
1704	*/	1671	*/
1705	add_weight (where, op->weight*op->nrof);	1672	add_weight (this, op->weight * op->nrof);
		1673	}
1706	} else	1674	else
1707	add_weight (where, (op->weight+op->carrying));	1675	add_weight (this, (op->weight + op->carrying));
1708		1676
1709	otmp=is_player_inv(where);	1677	otmp = this->in_player ();
1710	if (otmp&&otmp->contr!=NULL) {	1678	if (otmp && otmp->contr)
1711	if (!QUERY_FLAG(otmp,FLAG_NO_FIX_PLAYER))	1679	if (!QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1712	fix_player(otmp);	1680	otmp->update_stats ();
1713	}
1714		1681
1715	op->map=NULL;	1682	op->map = 0;
1716	op->env=where;	1683	op->env = this;
1717	op->above=NULL;	1684	op->above = 0;
1718	op->below=NULL;	1685	op->below = 0;
1719	op->x=0,op->y=0;	1686	op->x = 0, op->y = 0;
1720		1687
1721	/* reset the light list and los of the players on the map */	1688	/* reset the light list and los of the players on the map */
1722	if((op->glow_radius!=0)&&where->map)	1689	if ((op->glow_radius != 0) && map)
1723	{	1690	{
1724	#ifdef DEBUG_LIGHTS	1691	#ifdef DEBUG_LIGHTS
1725	LOG(llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n",	1692	LOG (llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n", op->name);
1726	op->name);
1727	#endif /* DEBUG_LIGHTS */	1693	#endif /* DEBUG_LIGHTS */
1728	if (MAP_DARKNESS(where->map)) update_all_los(where->map, where->x, where->y);	1694	if (map->darkness)
		1695	update_all_los (map, x, y);
1729	}	1696	}
1730		1697
1731	/* Client has no idea of ordering so lets not bother ordering it here.	1698	/* Client has no idea of ordering so lets not bother ordering it here.
1732	* It sure simplifies this function...	1699	* It sure simplifies this function...
1733	*/	1700	*/
1734	if (where->inv==NULL)	1701	if (!inv)
1735	where->inv=op;	1702	inv = op;
1736	else {	1703	else
		1704	{
1737	op->below = where->inv;	1705	op->below = inv;
1738	op->below->above = op;	1706	op->below->above = op;
1739	where->inv = op;	1707	inv = op;
1740	}	1708	}
		1709
		1710	INVOKE_OBJECT (INSERT, this);
		1711
1741	return op;	1712	return op;
1742	}	1713	}
1743		1714
1744	/*	1715	/*
1745	* Checks if any objects has a move_type that matches objects	1716	* Checks if any objects has a move_type that matches objects
…		…
1759	*	1730	*
1760	* MSW 2001-07-08: Check all objects on space, not just those below	1731	* MSW 2001-07-08: Check all objects on space, not just those below
1761	* object being inserted. insert_ob_in_map may not put new objects	1732	* object being inserted. insert_ob_in_map may not put new objects
1762	* on top.	1733	* on top.
1763	*/	1734	*/
1764		1735	int
1765	int check_move_on (object *op, object *originator)	1736	check_move_on (object *op, object *originator)
1766	{	1737	{
1767	object *tmp;	1738	object *tmp;
1768	tag_t tag;
1769	mapstruct *m=op->map;	1739	maptile *m = op->map;
1770	int x=op->x, y=op->y;	1740	int x = op->x, y = op->y;
		1741
1771	MoveType move_on, move_slow, move_block;	1742	MoveType move_on, move_slow, move_block;
1772		1743
1773	if(QUERY_FLAG(op,FLAG_NO_APPLY))	1744	if (QUERY_FLAG (op, FLAG_NO_APPLY))
1774	return 0;	1745	return 0;
1775		1746
1776	tag = op->count;
1777
1778	move_on = GET_MAP_MOVE_ON(op->map, op->x, op->y);	1747	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);
1779	move_slow = GET_MAP_MOVE_SLOW(op->map, op->x, op->y);	1748	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);
1780	move_block = GET_MAP_MOVE_BLOCK(op->map, op->x, op->y);	1749	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);
1781		1750
1782	/* if nothing on this space will slow op down or be applied,	1751	/* if nothing on this space will slow op down or be applied,
1783	* no need to do checking below. have to make sure move_type	1752	* no need to do checking below. have to make sure move_type
1784	* is set, as lots of objects don't have it set - we treat that	1753	* is set, as lots of objects don't have it set - we treat that
1785	* as walking.	1754	* as walking.
1786	*/	1755	*/
1787	if (op->move_type && !(op->move_type & move_on) && !(op->move_type & move_slow))	1756	if (op->move_type && !(op->move_type & move_on) && !(op->move_type & move_slow))
1788	return 0;	1757	return 0;
1789		1758
1790	/* This is basically inverse logic of that below - basically,	1759	/* This is basically inverse logic of that below - basically,
1791	* if the object can avoid the move on or slow move, they do so,	1760	* if the object can avoid the move on or slow move, they do so,
1792	* but can't do it if the alternate movement they are using is	1761	* but can't do it if the alternate movement they are using is
1793	* blocked. Logic on this seems confusing, but does seem correct.	1762	* blocked. Logic on this seems confusing, but does seem correct.
1794	*/	1763	*/
1795	if ((op->move_type & ~move_on & ~move_block) != 0 &&	1764	if ((op->move_type & ~move_on & ~move_block) != 0 && (op->move_type & ~move_slow & ~move_block) != 0)
1796	(op->move_type & ~move_slow & ~move_block) != 0) return 0;	1765	return 0;
1797		1766
1798	/* The objects have to be checked from top to bottom.	1767	/* The objects have to be checked from top to bottom.
1799	* Hence, we first go to the top:	1768	* Hence, we first go to the top:
1800	*/	1769	*/
1801		1770
1802	for (tmp=GET_MAP_OB(op->map, op->x, op->y); tmp!=NULL &&	1771	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp && tmp->above; tmp = tmp->above)
1803	tmp->above!=NULL; tmp=tmp->above) {	1772	{
1804	/* Trim the search when we find the first other spell effect	1773	/* Trim the search when we find the first other spell effect
1805	* this helps performance so that if a space has 50 spell objects,	1774	* this helps performance so that if a space has 50 spell objects,
1806	* we don't need to check all of them.	1775	* we don't need to check all of them.
1807	*/	1776	*/
1808	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG(tmp, FLAG_NO_PICK)) break;	1777	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG (tmp, FLAG_NO_PICK))
		1778	break;
		1779	}
		1780
		1781	for (; tmp; tmp = tmp->below)
1809	}	1782	{
1810	for(;tmp!=NULL; tmp=tmp->below) {	1783	if (tmp == op)
1811	if (tmp == op) continue; /* Can't apply yourself */	1784	continue; /* Can't apply yourself */
1812		1785
1813	/* Check to see if one of the movement types should be slowed down.	1786	/* Check to see if one of the movement types should be slowed down.
1814	* Second check makes sure that the movement types not being slowed	1787	* Second check makes sure that the movement types not being slowed
1815	* (~slow_move) is not blocked on this space - just because the	1788	* (~slow_move) is not blocked on this space - just because the
1816	* space doesn't slow down swimming (for example), if you can't actually	1789	* space doesn't slow down swimming (for example), if you can't actually
1817	* swim on that space, can't use it to avoid the penalty.	1790	* swim on that space, can't use it to avoid the penalty.
1818	*/	1791	*/
1819	if (!QUERY_FLAG(op, FLAG_WIZPASS)) {	1792	if (!QUERY_FLAG (op, FLAG_WIZPASS))
		1793	{
1820	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||	1794	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||
1821	((op->move_type & tmp->move_slow) &&
1822	(op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0)) {	1795	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))
		1796	{
1823		1797
1824	float diff;	1798	float
1825
1826	diff = tmp->move_slow_penalty*FABS(op->speed);	1799	diff = tmp->move_slow_penalty * FABS (op->speed);
		1800
1827	if (op->type == PLAYER) {	1801	if (op->type == PLAYER)
1828	if ((QUERY_FLAG(tmp, FLAG_IS_HILLY) && find_skill_by_number(op, SK_CLIMBING)) ||	1802	if ((QUERY_FLAG (tmp, FLAG_IS_HILLY) && find_skill_by_number (op, SK_CLIMBING)) ||
1829	(QUERY_FLAG(tmp, FLAG_IS_WOODED) && find_skill_by_number(op, SK_WOODSMAN))) {	1803	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))
1830	diff /= 4.0;	1804	diff /= 4.0;
1831	}	1805
1832	}
1833	op->speed_left -= diff;	1806	op->speed_left -= diff;
1834	}	1807	}
1835	}	1808	}
1836		1809
1837	/* Basically same logic as above, except now for actual apply. */	1810	/* Basically same logic as above, except now for actual apply. */
1838	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||	1811	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||
1839	((op->move_type & tmp->move_on) &&
1840	(op->move_type & ~tmp->move_on & ~tmp->move_block)==0)) {	1812	((op->move_type & tmp->move_on) && (op->move_type & ~tmp->move_on & ~tmp->move_block) == 0))
1841		1813	{
1842	move_apply(tmp, op, originator);	1814	move_apply (tmp, op, originator);
		1815
1843	if (was_destroyed (op, tag))	1816	if (op->destroyed ())
1844	return 1;	1817	return 1;
1845		1818
1846	/* what the person/creature stepped onto has moved the object	1819	/* what the person/creature stepped onto has moved the object
1847	* someplace new. Don't process any further - if we did,	1820	* someplace new. Don't process any further - if we did,
1848	* have a feeling strange problems would result.	1821	* have a feeling strange problems would result.
1849	*/	1822	*/
1850	if (op->map != m || op->x != x || op->y != y) return 0;	1823	if (op->map != m || op->x != x || op->y != y)
		1824	return 0;
1851	}	1825	}
1852	}	1826	}
		1827
1853	return 0;	1828	return 0;
1854	}	1829	}
1855		1830
1856	/*	1831	/*
1857	* present_arch(arch, map, x, y) searches for any objects with	1832	* present_arch(arch, map, x, y) searches for any objects with
1858	* a matching archetype at the given map and coordinates.	1833	* a matching archetype at the given map and coordinates.
1859	* The first matching object is returned, or NULL if none.	1834	* The first matching object is returned, or NULL if none.
1860	*/	1835	*/
1861		1836	object *
1862	object *present_arch(const archetype *at, mapstruct *m, int x, int y) {	1837	present_arch (const archetype *at, maptile *m, int x, int y)
1863	object *tmp;	1838	{
1864	if(m==NULL || out_of_map(m,x,y)) {	1839	if (m == NULL || out_of_map (m, x, y))
		1840	{
1865	LOG(llevError,"Present_arch called outside map.\n");	1841	LOG (llevError, "Present_arch called outside map.\n");
1866	return NULL;	1842	return NULL;
1867	}	1843	}
		1844
1868	for(tmp=GET_MAP_OB(m,x,y); tmp != NULL; tmp = tmp->above)	1845	for (object *tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)
1869	if(tmp->arch == at)	1846	if (tmp->arch == at)
1870	return tmp;	1847	return tmp;
		1848
1871	return NULL;	1849	return NULL;
1872	}	1850	}
1873		1851
1874	/*	1852	/*
1875	* present(type, map, x, y) searches for any objects with	1853	* present(type, map, x, y) searches for any objects with
1876	* a matching type variable at the given map and coordinates.	1854	* a matching type variable at the given map and coordinates.
1877	* The first matching object is returned, or NULL if none.	1855	* The first matching object is returned, or NULL if none.
1878	*/	1856	*/
1879		1857	object *
1880	object *present(unsigned char type,mapstruct *m, int x,int y) {	1858	present (unsigned char type, maptile *m, int x, int y)
1881	object *tmp;	1859	{
1882	if(out_of_map(m,x,y)) {	1860	if (out_of_map (m, x, y))
		1861	{
1883	LOG(llevError,"Present called outside map.\n");	1862	LOG (llevError, "Present called outside map.\n");
1884	return NULL;	1863	return NULL;
1885	}	1864	}
		1865
1886	for(tmp=GET_MAP_OB(m,x,y);tmp!=NULL;tmp=tmp->above)	1866	for (object *tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)
1887	if(tmp->type==type)	1867	if (tmp->type == type)
1888	return tmp;	1868	return tmp;
		1869
1889	return NULL;	1870	return NULL;
1890	}	1871	}
1891		1872
1892	/*	1873	/*
1893	* present_in_ob(type, object) searches for any objects with	1874	* present_in_ob(type, object) searches for any objects with
1894	* a matching type variable in the inventory of the given object.	1875	* a matching type variable in the inventory of the given object.
1895	* The first matching object is returned, or NULL if none.	1876	* The first matching object is returned, or NULL if none.
1896	*/	1877	*/
1897		1878	object *
1898	object *present_in_ob(unsigned char type, const object *op) {	1879	present_in_ob (unsigned char type, const object *op)
1899	object *tmp;	1880	{
1900	for(tmp=op->inv;tmp!=NULL;tmp=tmp->below)	1881	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
1901	if(tmp->type==type)	1882	if (tmp->type == type)
1902	return tmp;	1883	return tmp;
		1884
1903	return NULL;	1885	return NULL;
1904	}	1886	}
1905		1887
1906	/*	1888	/*
1907	* present_in_ob (type, str, object) searches for any objects with	1889	* present_in_ob (type, str, object) searches for any objects with
…		…
1915	* str is the string to match against. Note that we match against	1897	* str is the string to match against. Note that we match against
1916	* the object name, not the archetype name. this is so that the	1898	* the object name, not the archetype name. this is so that the
1917	* spell code can use one object type (force), but change it's name	1899	* spell code can use one object type (force), but change it's name
1918	* to be unique.	1900	* to be unique.
1919	*/	1901	*/
1920		1902	object *
1921	object *present_in_ob_by_name(int type, const char *str, const object *op) {	1903	present_in_ob_by_name (int type, const char *str, const object *op)
1922	object *tmp;	1904	{
1923
1924	for(tmp=op->inv; tmp!=NULL; tmp=tmp->below) {	1905	for (object *tmp = op->inv; tmp; tmp = tmp->below)
1925	if ((type==-1 || tmp->type==type) && (!strcmp(str, tmp->name)))	1906	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))
1926	return tmp;	1907	return tmp;
1927	}	1908
1928	return NULL;	1909	return 0;
1929	}	1910	}
1930		1911
1931	/*	1912	/*
1932	* present_arch_in_ob(archetype, object) searches for any objects with	1913	* present_arch_in_ob(archetype, object) searches for any objects with
1933	* a matching archetype in the inventory of the given object.	1914	* a matching archetype in the inventory of the given object.
1934	* The first matching object is returned, or NULL if none.	1915	* The first matching object is returned, or NULL if none.
1935	*/	1916	*/
1936		1917	object *
1937	object *present_arch_in_ob(const archetype *at, const object *op) {	1918	present_arch_in_ob (const archetype *at, const object *op)
1938	object *tmp;	1919	{
1939	for(tmp=op->inv;tmp!=NULL;tmp=tmp->below)	1920	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
1940	if( tmp->arch == at)	1921	if (tmp->arch == at)
1941	return tmp;	1922	return tmp;
		1923
1942	return NULL;	1924	return NULL;
1943	}	1925	}
1944		1926
1945	/*	1927	/*
1946	* activate recursively a flag on an object inventory	1928	* activate recursively a flag on an object inventory
1947	*/	1929	*/
		1930	void
1948	void flag_inv(object*op, int flag){	1931	flag_inv (object *op, int flag)
1949	object *tmp;	1932	{
1950	if(op->inv)	1933	if (op->inv)
1951	for(tmp = op->inv; tmp != NULL; tmp = tmp->below){	1934	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
		1935	{
1952	SET_FLAG(tmp, flag);	1936	SET_FLAG (tmp, flag);
1953	flag_inv(tmp,flag);	1937	flag_inv (tmp, flag);
1954	}	1938	}
		1939	}
		1940
1955	}/*	1941	/*
1956	* desactivate recursively a flag on an object inventory	1942	* deactivate recursively a flag on an object inventory
1957	*/	1943	*/
		1944	void
1958	void unflag_inv(object*op, int flag){	1945	unflag_inv (object *op, int flag)
1959	object *tmp;	1946	{
1960	if(op->inv)	1947	if (op->inv)
1961	for(tmp = op->inv; tmp != NULL; tmp = tmp->below){	1948	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
		1949	{
1962	CLEAR_FLAG(tmp, flag);	1950	CLEAR_FLAG (tmp, flag);
1963	unflag_inv(tmp,flag);	1951	unflag_inv (tmp, flag);
1964	}	1952	}
1965	}	1953	}
1966		1954
1967	/*	1955	/*
1968	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in	1956	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in
1969	* all it's inventory (recursively).	1957	* all it's inventory (recursively).
1970	* If checksums are used, a player will get set_cheat called for	1958	* If checksums are used, a player will get set_cheat called for
1971	* him/her-self and all object carried by a call to this function.	1959	* him/her-self and all object carried by a call to this function.
1972	*/	1960	*/
1973		1961	void
1974	void set_cheat(object *op) {	1962	set_cheat (object *op)
		1963	{
1975	SET_FLAG(op, FLAG_WAS_WIZ);	1964	SET_FLAG (op, FLAG_WAS_WIZ);
1976	flag_inv(op, FLAG_WAS_WIZ);	1965	flag_inv (op, FLAG_WAS_WIZ);
1977	}	1966	}
1978		1967
1979	/*	1968	/*
1980	* find_free_spot(object, map, x, y, start, stop) will search for	1969	* find_free_spot(object, map, x, y, start, stop) will search for
1981	* a spot at the given map and coordinates which will be able to contain	1970	* a spot at the given map and coordinates which will be able to contain
…		…
1995	* because arch_blocked (now ob_blocked) needs to know the movement type	1984	* because arch_blocked (now ob_blocked) needs to know the movement type
1996	* to know if the space in question will block the object. We can't use	1985	* to know if the space in question will block the object. We can't use
1997	* the archetype because that isn't correct if the monster has been	1986	* the archetype because that isn't correct if the monster has been
1998	* customized, changed states, etc.	1987	* customized, changed states, etc.
1999	*/	1988	*/
2000		1989	int
2001	int find_free_spot(const object *ob, mapstruct *m,int x,int y,int start,int stop) {	1990	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)
		1991	{
2002	int i,index=0, flag;	1992	int index = 0, flag;
2003	static int altern[SIZEOFFREE];	1993	int altern[SIZEOFFREE];
2004		1994
2005	for(i=start;i<stop;i++) {	1995	for (int i = start; i < stop; i++)
		1996	{
2006	flag = ob_blocked(ob,m,x+freearr_x[i],y+freearr_y[i]);	1997	flag = ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]);
2007	if(!flag)	1998	if (!flag)
2008	altern[index++]=i;	1999	altern [index++] = i;
2009		2000
2010	/* Basically, if we find a wall on a space, we cut down the search size.	2001	/* Basically, if we find a wall on a space, we cut down the search size.
2011	* In this way, we won't return spaces that are on another side of a wall.	2002	* In this way, we won't return spaces that are on another side of a wall.
2012	* This mostly work, but it cuts down the search size in all directions -	2003	* This mostly work, but it cuts down the search size in all directions -
2013	* if the space being examined only has a wall to the north and empty	2004	* if the space being examined only has a wall to the north and empty
2014	* spaces in all the other directions, this will reduce the search space	2005	* spaces in all the other directions, this will reduce the search space
2015	* to only the spaces immediately surrounding the target area, and	2006	* to only the spaces immediately surrounding the target area, and
2016	* won't look 2 spaces south of the target space.	2007	* won't look 2 spaces south of the target space.
2017	*/	2008	*/
2018	else if ((flag & AB_NO_PASS) && maxfree[i]<stop)	2009	else if ((flag & P_NO_PASS) && maxfree[i] < stop)
2019	stop=maxfree[i];	2010	stop = maxfree[i];
2020	}	2011	}
2021	if(!index) return -1;	2012
		2013	if (!index)
		2014	return -1;
		2015
2022	return altern[RANDOM()%index];	2016	return altern[RANDOM () % index];
2023	}	2017	}
2024		2018
2025	/*	2019	/*
2026	* find_first_free_spot(archetype, mapstruct, x, y) works like	2020	* find_first_free_spot(archetype, maptile, x, y) works like
2027	* find_free_spot(), but it will search max number of squares.	2021	* find_free_spot(), but it will search max number of squares.
2028	* But it will return the first available spot, not a random choice.	2022	* But it will return the first available spot, not a random choice.
2029	* Changed 0.93.2: Have it return -1 if there is no free spot available.	2023	* Changed 0.93.2: Have it return -1 if there is no free spot available.
2030	*/	2024	*/
2031		2025	int
2032	int find_first_free_spot(const object *ob, mapstruct *m,int x,int y) {	2026	find_first_free_spot (const object *ob, maptile *m, int x, int y)
2033	int i;	2027	{
2034	for(i=0;i<SIZEOFFREE;i++) {	2028	for (int i = 0; i < SIZEOFFREE; i++)
2035	if(!ob_blocked(ob,m,x+freearr_x[i],y+freearr_y[i]))	2029	if (!ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]))
2036	return i;	2030	return i;
2037	}	2031
2038	return -1;	2032	return -1;
2039	}	2033	}
2040		2034
2041	/*	2035	/*
2042	* The function permute(arr, begin, end) randomly reorders the array	2036	* The function permute(arr, begin, end) randomly reorders the array
2043	* arr[begin..end-1].	2037	* arr[begin..end-1].
		2038	* now uses a fisher-yates shuffle, old permute was broken
2044	*/	2039	*/
		2040	static void
2045	static void permute(int *arr, int begin, int end)	2041	permute (int *arr, int begin, int end)
2046	{	2042	{
2047	int i, j, tmp, len;	2043	arr += begin;
		2044	end -= begin;
2048		2045
2049	len = end-begin;	2046	while (--end)
2050	for(i = begin; i < end; i++)	2047	swap (arr [end], arr [RANDOM () % (end + 1)]);
2051	{
2052	j = begin+RANDOM()%len;
2053
2054	tmp = arr[i];
2055	arr[i] = arr[j];
2056	arr[j] = tmp;
2057	}
2058	}	2048	}
2059		2049
2060	/* new function to make monster searching more efficient, and effective!	2050	/* new function to make monster searching more efficient, and effective!
2061	* This basically returns a randomized array (in the passed pointer) of	2051	* This basically returns a randomized array (in the passed pointer) of
2062	* the spaces to find monsters. In this way, it won't always look for	2052	* the spaces to find monsters. In this way, it won't always look for
2063	* monsters to the north first. However, the size of the array passed	2053	* monsters to the north first. However, the size of the array passed
2064	* covers all the spaces, so within that size, all the spaces within	2054	* covers all the spaces, so within that size, all the spaces within
2065	* the 3x3 area will be searched, just not in a predictable order.	2055	* the 3x3 area will be searched, just not in a predictable order.
2066	*/	2056	*/
		2057	void
2067	void get_search_arr(int *search_arr)	2058	get_search_arr (int *search_arr)
2068	{	2059	{
2069	int i;	2060	int i;
2070		2061
2071	for(i = 0; i < SIZEOFFREE; i++)	2062	for (i = 0; i < SIZEOFFREE; i++)
2072	{
2073	search_arr[i] = i;	2063	search_arr[i] = i;
2074	}
2075		2064
2076	permute(search_arr, 1, SIZEOFFREE1+1);	2065	permute (search_arr, 1, SIZEOFFREE1 + 1);
2077	permute(search_arr, SIZEOFFREE1+1, SIZEOFFREE2+1);	2066	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);
2078	permute(search_arr, SIZEOFFREE2+1, SIZEOFFREE);	2067	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);
2079	}	2068	}
2080		2069
2081	/*	2070	/*
2082	* find_dir(map, x, y, exclude) will search some close squares in the	2071	* find_dir(map, x, y, exclude) will search some close squares in the
2083	* given map at the given coordinates for live objects.	2072	* given map at the given coordinates for live objects.
…		…
2088	* Perhaps incorrectly, but I'm making the assumption that exclude	2077	* Perhaps incorrectly, but I'm making the assumption that exclude
2089	* is actually want is going to try and move there. We need this info	2078	* is actually want is going to try and move there. We need this info
2090	* because we have to know what movement the thing looking to move	2079	* because we have to know what movement the thing looking to move
2091	* there is capable of.	2080	* there is capable of.
2092	*/	2081	*/
2093		2082	int
2094	int find_dir(mapstruct *m, int x, int y, object *exclude) {	2083	find_dir (maptile *m, int x, int y, object *exclude)
		2084	{
2095	int i,max=SIZEOFFREE, mflags;	2085	int i, max = SIZEOFFREE, mflags;
		2086
2096	sint16 nx, ny;	2087	sint16 nx, ny;
2097	object *tmp;	2088	object *tmp;
2098	mapstruct *mp;	2089	maptile *mp;
		2090
2099	MoveType blocked, move_type;	2091	MoveType blocked, move_type;
2100		2092
2101	if (exclude && exclude->head) {	2093	if (exclude && exclude->head)
		2094	{
2102	exclude = exclude->head;	2095	exclude = exclude->head;
2103	move_type = exclude->move_type;	2096	move_type = exclude->move_type;
2104	} else {	2097	}
		2098	else
		2099	{
2105	/* If we don't have anything, presume it can use all movement types. */	2100	/* If we don't have anything, presume it can use all movement types. */
2106	move_type=MOVE_ALL;	2101	move_type = MOVE_ALL;
		2102	}
		2103
		2104	for (i = 1; i < max; i++)
2107	}	2105	{
2108
2109	for(i=1;i<max;i++) {
2110	mp = m;	2106	mp = m;
2111	nx = x + freearr_x[i];	2107	nx = x + freearr_x[i];
2112	ny = y + freearr_y[i];	2108	ny = y + freearr_y[i];
2113		2109
2114	mflags = get_map_flags(m, &mp, nx, ny, &nx, &ny);	2110	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);
		2111
2115	if (mflags & P_OUT_OF_MAP) {	2112	if (mflags & P_OUT_OF_MAP)
		2113	max = maxfree[i];
		2114	else
		2115	{
		2116	mapspace &ms = mp->at (nx, ny);
		2117
		2118	blocked = ms.move_block;
		2119
		2120	if ((move_type & blocked) == move_type)
2116	max = maxfree[i];	2121	max = maxfree[i];
2117	} else {
2118	blocked = GET_MAP_MOVE_BLOCK(mp, nx, ny);
2119
2120	if ((move_type & blocked) == move_type) {
2121	max=maxfree[i];
2122	} else if (mflags & P_IS_ALIVE) {	2122	else if (mflags & P_IS_ALIVE)
2123	for (tmp=GET_MAP_OB(mp,nx,ny); tmp!= NULL; tmp=tmp->above) {	2123	{
		2124	for (tmp = ms.bot; tmp; tmp = tmp->above)
2124	if ((QUERY_FLAG(tmp,FLAG_MONSTER) || tmp->type==PLAYER) &&	2125	if ((tmp->flag [FLAG_MONSTER] || tmp->type == PLAYER)
2125	(tmp != exclude ||(tmp->head && tmp->head != exclude))) {	2126	&& (tmp != exclude || (tmp->head && tmp->head != exclude)))
2126	break;	2127	break;
2127	}	2128
2128	}
2129	if(tmp) {	2129	if (tmp)
2130	return freedir[i];	2130	return freedir[i];
2131	}
2132	}	2131	}
2133	}	2132	}
2134	}	2133	}
		2134
2135	return 0;	2135	return 0;
2136	}	2136	}
2137		2137
2138	/*	2138	/*
2139	* distance(object 1, object 2) will return the square of the	2139	* distance(object 1, object 2) will return the square of the
2140	* distance between the two given objects.	2140	* distance between the two given objects.
2141	*/	2141	*/
2142		2142	int
2143	int distance(const object *ob1, const object *ob2) {	2143	distance (const object *ob1, const object *ob2)
2144	int i;	2144	{
2145	i= (ob1->x - ob2->x)*(ob1->x - ob2->x)+	2145	return (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);
2146	(ob1->y - ob2->y)*(ob1->y - ob2->y);
2147	return i;
2148	}	2146	}
2149		2147
2150	/*	2148	/*
2151	* find_dir_2(delta-x,delta-y) will return a direction in which	2149	* find_dir_2(delta-x,delta-y) will return a direction in which
2152	* an object which has subtracted the x and y coordinates of another	2150	* an object which has subtracted the x and y coordinates of another
2153	* object, needs to travel toward it.	2151	* object, needs to travel toward it.
2154	*/	2152	*/
2155		2153	int
2156	int find_dir_2(int x, int y) {	2154	find_dir_2 (int x, int y)
		2155	{
2157	int q;	2156	int q;
2158		2157
2159	if(y)	2158	if (y)
2160	q=x*100/y;	2159	q = x * 100 / y;
2161	else if (x)	2160	else if (x)
2162	q= -300*x;	2161	q = -300 * x;
2163	else	2162	else
2164	return 0;	2163	return 0;
2165		2164
2166	if(y>0) {	2165	if (y > 0)
		2166	{
2167	if(q < -242)	2167	if (q < -242)
2168	return 3 ;	2168	return 3;
2169	if (q < -41)	2169	if (q < -41)
2170	return 2 ;	2170	return 2;
2171	if (q < 41)	2171	if (q < 41)
2172	return 1 ;	2172	return 1;
2173	if (q < 242)	2173	if (q < 242)
2174	return 8 ;	2174	return 8;
2175	return 7 ;	2175	return 7;
2176	}	2176	}
2177		2177
2178	if (q < -242)	2178	if (q < -242)
2179	return 7 ;	2179	return 7;
2180	if (q < -41)	2180	if (q < -41)
2181	return 6 ;	2181	return 6;
2182	if (q < 41)	2182	if (q < 41)
2183	return 5 ;	2183	return 5;
2184	if (q < 242)	2184	if (q < 242)
2185	return 4 ;	2185	return 4;
2186		2186
2187	return 3 ;	2187	return 3;
2188	}	2188	}
2189		2189
2190	/*	2190	/*
2191	* absdir(int): Returns a number between 1 and 8, which represent	2191	* absdir(int): Returns a number between 1 and 8, which represent
2192	* the "absolute" direction of a number (it actually takes care of	2192	* the "absolute" direction of a number (it actually takes care of
2193	* "overflow" in previous calculations of a direction).	2193	* "overflow" in previous calculations of a direction).
2194	*/	2194	*/
2195		2195
		2196	int
2196	int absdir(int d) {	2197	absdir (int d)
2197	while(d<1) d+=8;	2198	{
2198	while(d>8) d-=8;	2199	while (d < 1)
		2200	d += 8;
		2201
		2202	while (d > 8)
		2203	d -= 8;
		2204
2199	return d;	2205	return d;
2200	}	2206	}
2201		2207
2202	/*	2208	/*
2203	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is	2209	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is
2204	* between two directions (which are expected to be absolute (see absdir())	2210	* between two directions (which are expected to be absolute (see absdir())
2205	*/	2211	*/
2206		2212
		2213	int
2207	int dirdiff(int dir1, int dir2) {	2214	dirdiff (int dir1, int dir2)
		2215	{
2208	int d;	2216	int d;
		2217
2209	d = abs(dir1 - dir2);	2218	d = abs (dir1 - dir2);
2210	if(d>4)	2219	if (d > 4)
2211	d = 8 - d;	2220	d = 8 - d;
		2221
2212	return d;	2222	return d;
2213	}	2223	}
2214		2224
2215	/* peterm:	2225	/* peterm:
2216	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.	2226	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.
…		…
2219	* This basically means that if direction is 15, then it could either go	2229	* This basically means that if direction is 15, then it could either go
2220	* direction 4, 14, or 16 to get back to where we are.	2230	* direction 4, 14, or 16 to get back to where we are.
2221	* Moved from spell_util.c to object.c with the other related direction	2231	* Moved from spell_util.c to object.c with the other related direction
2222	* functions.	2232	* functions.
2223	*/	2233	*/
2224
2225	int reduction_dir[SIZEOFFREE][3] = {	2234	int reduction_dir[SIZEOFFREE][3] = {
2226	{0,0,0}, /* 0 */	2235	{0, 0, 0}, /* 0 */
2227	{0,0,0}, /* 1 */	2236	{0, 0, 0}, /* 1 */
2228	{0,0,0}, /* 2 */	2237	{0, 0, 0}, /* 2 */
2229	{0,0,0}, /* 3 */	2238	{0, 0, 0}, /* 3 */
2230	{0,0,0}, /* 4 */	2239	{0, 0, 0}, /* 4 */
2231	{0,0,0}, /* 5 */	2240	{0, 0, 0}, /* 5 */
2232	{0,0,0}, /* 6 */	2241	{0, 0, 0}, /* 6 */
2233	{0,0,0}, /* 7 */	2242	{0, 0, 0}, /* 7 */
2234	{0,0,0}, /* 8 */	2243	{0, 0, 0}, /* 8 */
2235	{8,1,2}, /* 9 */	2244	{8, 1, 2}, /* 9 */
2236	{1,2,-1}, /* 10 */	2245	{1, 2, -1}, /* 10 */
2237	{2,10,12}, /* 11 */	2246	{2, 10, 12}, /* 11 */
2238	{2,3,-1}, /* 12 */	2247	{2, 3, -1}, /* 12 */
2239	{2,3,4}, /* 13 */	2248	{2, 3, 4}, /* 13 */
2240	{3,4,-1}, /* 14 */	2249	{3, 4, -1}, /* 14 */
2241	{4,14,16}, /* 15 */	2250	{4, 14, 16}, /* 15 */
2242	{5,4,-1}, /* 16 */	2251	{5, 4, -1}, /* 16 */
2243	{4,5,6}, /* 17 */	2252	{4, 5, 6}, /* 17 */
2244	{6,5,-1}, /* 18 */	2253	{6, 5, -1}, /* 18 */
2245	{6,20,18}, /* 19 */	2254	{6, 20, 18}, /* 19 */
2246	{7,6,-1}, /* 20 */	2255	{7, 6, -1}, /* 20 */
2247	{6,7,8}, /* 21 */	2256	{6, 7, 8}, /* 21 */
2248	{7,8,-1}, /* 22 */	2257	{7, 8, -1}, /* 22 */
2249	{8,22,24}, /* 23 */	2258	{8, 22, 24}, /* 23 */
2250	{8,1,-1}, /* 24 */	2259	{8, 1, -1}, /* 24 */
2251	{24,9,10}, /* 25 */	2260	{24, 9, 10}, /* 25 */
2252	{9,10,-1}, /* 26 */	2261	{9, 10, -1}, /* 26 */
2253	{10,11,-1}, /* 27 */	2262	{10, 11, -1}, /* 27 */
2254	{27,11,29}, /* 28 */	2263	{27, 11, 29}, /* 28 */
2255	{11,12,-1}, /* 29 */	2264	{11, 12, -1}, /* 29 */
2256	{12,13,-1}, /* 30 */	2265	{12, 13, -1}, /* 30 */
2257	{12,13,14}, /* 31 */	2266	{12, 13, 14}, /* 31 */
2258	{13,14,-1}, /* 32 */	2267	{13, 14, -1}, /* 32 */
2259	{14,15,-1}, /* 33 */	2268	{14, 15, -1}, /* 33 */
2260	{33,15,35}, /* 34 */	2269	{33, 15, 35}, /* 34 */
2261	{16,15,-1}, /* 35 */	2270	{16, 15, -1}, /* 35 */
2262	{17,16,-1}, /* 36 */	2271	{17, 16, -1}, /* 36 */
2263	{18,17,16}, /* 37 */	2272	{18, 17, 16}, /* 37 */
2264	{18,17,-1}, /* 38 */	2273	{18, 17, -1}, /* 38 */
2265	{18,19,-1}, /* 39 */	2274	{18, 19, -1}, /* 39 */
2266	{41,19,39}, /* 40 */	2275	{41, 19, 39}, /* 40 */
2267	{19,20,-1}, /* 41 */	2276	{19, 20, -1}, /* 41 */
2268	{20,21,-1}, /* 42 */	2277	{20, 21, -1}, /* 42 */
2269	{20,21,22}, /* 43 */	2278	{20, 21, 22}, /* 43 */
2270	{21,22,-1}, /* 44 */	2279	{21, 22, -1}, /* 44 */
2271	{23,22,-1}, /* 45 */	2280	{23, 22, -1}, /* 45 */
2272	{45,47,23}, /* 46 */	2281	{45, 47, 23}, /* 46 */
2273	{23,24,-1}, /* 47 */	2282	{23, 24, -1}, /* 47 */
2274	{24,9,-1}}; /* 48 */	2283	{24, 9, -1}
		2284	}; /* 48 */
2275		2285
2276	/* Recursive routine to step back and see if we can	2286	/* Recursive routine to step back and see if we can
2277	* find a path to that monster that we found. If not,	2287	* find a path to that monster that we found. If not,
2278	* we don't bother going toward it. Returns 1 if we	2288	* we don't bother going toward it. Returns 1 if we
2279	* can see a direct way to get it	2289	* can see a direct way to get it
2280	* Modified to be map tile aware -.MSW	2290	* Modified to be map tile aware -.MSW
2281	*/	2291	*/
2282		2292	int
2283
2284	int can_see_monsterP(mapstruct *m, int x, int y,int dir) {	2293	can_see_monsterP (maptile *m, int x, int y, int dir)
		2294	{
2285	sint16 dx, dy;	2295	sint16 dx, dy;
2286	int mflags;	2296	int mflags;
2287		2297
		2298	if (dir < 0)
2288	if(dir<0) return 0; /* exit condition: invalid direction */	2299	return 0; /* exit condition: invalid direction */
2289		2300
2290	dx = x + freearr_x[dir];	2301	dx = x + freearr_x[dir];
2291	dy = y + freearr_y[dir];	2302	dy = y + freearr_y[dir];
2292		2303
2293	mflags = get_map_flags(m, &m, dx, dy, &dx, &dy);	2304	mflags = get_map_flags (m, &m, dx, dy, &dx, &dy);
2294		2305
2295	/* This functional arguably was incorrect before - it was	2306	/* This functional arguably was incorrect before - it was
2296	* checking for P_WALL - that was basically seeing if	2307	* checking for P_WALL - that was basically seeing if
2297	* we could move to the monster - this is being more	2308	* we could move to the monster - this is being more
2298	* literal on if we can see it. To know if we can actually	2309	* literal on if we can see it. To know if we can actually
2299	* move to the monster, we'd need the monster passed in or	2310	* move to the monster, we'd need the monster passed in or
2300	* at least its move type.	2311	* at least its move type.
2301	*/	2312	*/
2302	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW)) return 0;	2313	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW))
		2314	return 0;
2303		2315
2304	/* yes, can see. */	2316	/* yes, can see. */
2305	if(dir < 9) return 1;	2317	if (dir < 9)
		2318	return 1;
		2319
2306	return can_see_monsterP(m, x, y, reduction_dir[dir][0]) |	2320	return can_see_monsterP (m, x, y, reduction_dir[dir][0])
2307	can_see_monsterP(m,x,y, reduction_dir[dir][1]) |	2321	| can_see_monsterP (m, x, y, reduction_dir[dir][1])
2308	can_see_monsterP(m,x,y, reduction_dir[dir][2]);	2322	| can_see_monsterP (m, x, y, reduction_dir[dir][2]);
2309	}	2323	}
2310		2324
2311
2312
2313	/*	2325	/*
2314	* can_pick(picker, item): finds out if an object is possible to be	2326	* can_pick(picker, item): finds out if an object is possible to be
2315	* picked up by the picker. Returnes 1 if it can be	2327	* picked up by the picker. Returnes 1 if it can be
2316	* picked up, otherwise 0.	2328	* picked up, otherwise 0.
2317	*	2329	*
…		…
2319	* core dumps if they do.	2331	* core dumps if they do.
2320	*	2332	*
2321	* Add a check so we can't pick up invisible objects (0.93.8)	2333	* Add a check so we can't pick up invisible objects (0.93.8)
2322	*/	2334	*/
2323		2335
		2336	int
2324	int can_pick(const object *who, const object *item) {	2337	can_pick (const object *who, const object *item)
		2338	{
2325	return /*QUERY_FLAG(who,FLAG_WIZ)||*/	2339	return /*QUERY_FLAG(who,FLAG_WIZ)|| */
2326	(item->weight>0&&!QUERY_FLAG(item,FLAG_NO_PICK)&&	2340	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&
2327	!QUERY_FLAG(item,FLAG_ALIVE)&&!item->invisible &&	2341	!QUERY_FLAG (item, FLAG_ALIVE) && !item->invisible && (who->type == PLAYER || item->weight < who->weight / 3));
2328	(who->type==PLAYER||item->weight<who->weight/3));
2329	}	2342	}
2330
2331		2343
2332	/*	2344	/*
2333	* create clone from object to another	2345	* create clone from object to another
2334	*/	2346	*/
		2347	object *
2335	object *object_create_clone (object *asrc) {	2348	object_create_clone (object *asrc)
		2349	{
2336	object *dst = NULL,*tmp,*src,*part,*prev, *item;	2350	object *dst = 0, *tmp, *src, *part, *prev, *item;
2337		2351
2338	if(!asrc) return NULL;	2352	if (!asrc)
		2353	return 0;
		2354
2339	src = asrc;	2355	src = asrc;
2340	if(src->head)	2356	if (src->head)
2341	src = src->head;	2357	src = src->head;
2342		2358
2343	prev = NULL;	2359	prev = 0;
2344	for(part = src; part; part = part->more) {	2360	for (part = src; part; part = part->more)
2345	tmp = get_object();	2361	{
2346	copy_object(part,tmp);	2362	tmp = part->clone ();
2347	tmp->x -= src->x;	2363	tmp->x -= src->x;
2348	tmp->y -= src->y;	2364	tmp->y -= src->y;
		2365
2349	if(!part->head) {	2366	if (!part->head)
		2367	{
2350	dst = tmp;	2368	dst = tmp;
2351	tmp->head = NULL;
2352	} else {
2353	tmp->head = dst;	2369	tmp->head = 0;
2354	}	2370	}
		2371	else
		2372	tmp->head = dst;
		2373
2355	tmp->more = NULL;	2374	tmp->more = 0;
		2375
2356	if(prev)	2376	if (prev)
2357	prev->more = tmp;	2377	prev->more = tmp;
		2378
2358	prev = tmp;	2379	prev = tmp;
2359	}	2380	}
2360	/*** copy inventory ***/	2381
2361	for(item = src->inv; item; item = item->below) {	2382	for (item = src->inv; item; item = item->below)
2362	(void) insert_ob_in_ob(object_create_clone(item),dst);	2383	insert_ob_in_ob (object_create_clone (item), dst);
2363	}
2364		2384
2365	return dst;	2385	return dst;
2366	}
2367
2368	/* return true if the object was destroyed, 0 otherwise */
2369	int was_destroyed (const object *op, tag_t old_tag)
2370	{
2371	/* checking for FLAG_FREED isn't necessary, but makes this function more
2372	* robust */
2373	return op->count != old_tag || QUERY_FLAG (op, FLAG_FREED);
2374	}	2386	}
2375		2387
2376	/* GROS - Creates an object using a string representing its content. */	2388	/* GROS - Creates an object using a string representing its content. */
2377	/* Basically, we save the content of the string to a temp file, then call */	2389	/* Basically, we save the content of the string to a temp file, then call */
2378	/* load_object on it. I admit it is a highly inefficient way to make things, */	2390	/* load_object on it. I admit it is a highly inefficient way to make things, */
2379	/* but it was simple to make and allows reusing the load_object function. */	2391	/* but it was simple to make and allows reusing the load_object function. */
2380	/* Remember not to use load_object_str in a time-critical situation. */	2392	/* Remember not to use load_object_str in a time-critical situation. */
2381	/* Also remember that multiparts objects are not supported for now. */	2393	/* Also remember that multiparts objects are not supported for now. */
2382		2394	object *
2383	object* load_object_str(const char *obstr)	2395	load_object_str (const char *obstr)
2384	{	2396	{
2385	object *op;	2397	object *op;
2386	char filename[MAX_BUF];	2398	char filename[MAX_BUF];
		2399
2387	sprintf(filename,"%s/cfloadobstr2044",settings.tmpdir);	2400	sprintf (filename, "%s/cfloadobstr2044", settings.tmpdir);
2388		2401
2389	FILE *tempfile=fopen(filename,"w");	2402	FILE *tempfile = fopen (filename, "w");
		2403
2390	if (tempfile == NULL)	2404	if (tempfile == NULL)
2391	{	2405	{
2392	LOG(llevError,"Error - Unable to access load object temp file\n");	2406	LOG (llevError, "Error - Unable to access load object temp file\n");
2393	return NULL;	2407	return NULL;
2394	};	2408	}
		2409
2395	fprintf(tempfile,obstr);	2410	fprintf (tempfile, obstr);
2396	fclose(tempfile);	2411	fclose (tempfile);
2397		2412
2398	op=get_object();	2413	op = object::create ();
2399		2414
2400	object_thawer thawer (filename);	2415	object_thawer thawer (filename);
2401		2416
2402	if (thawer)	2417	if (thawer)
2403	load_object(thawer,op,0);	2418	load_object (thawer, op, 0);
2404		2419
2405	LOG(llevDebug," load str completed, object=%s\n", &op->name);	2420	LOG (llevDebug, " load str completed, object=%s\n", &op->name);
2406	CLEAR_FLAG(op,FLAG_REMOVED);	2421	CLEAR_FLAG (op, FLAG_REMOVED);
2407		2422
2408	return op;	2423	return op;
2409	}	2424	}
2410		2425
2411	/* This returns the first object in who's inventory that	2426	/* This returns the first object in who's inventory that
2412	* has the same type and subtype match.	2427	* has the same type and subtype match.
2413	* returns NULL if no match.	2428	* returns NULL if no match.
2414	*/	2429	*/
		2430	object *
2415	object *find_obj_by_type_subtype(const object *who, int type, int subtype)	2431	find_obj_by_type_subtype (const object *who, int type, int subtype)
2416	{	2432	{
2417	object *tmp;
2418
2419	for (tmp=who->inv; tmp; tmp=tmp->below)	2433	for (object *tmp = who->inv; tmp; tmp = tmp->below)
2420	if (tmp->type == type && tmp->subtype == subtype) return tmp;	2434	if (tmp->type == type && tmp->subtype == subtype)
		2435	return tmp;
2421		2436
2422	return NULL;	2437	return 0;
2423	}	2438	}
2424		2439
2425	/* If ob has a field named key, return the link from the list,	2440	/* If ob has a field named key, return the link from the list,
2426	* otherwise return NULL.	2441	* otherwise return NULL.
2427	*	2442	*
2428	* key must be a passed in shared string - otherwise, this won't	2443	* key must be a passed in shared string - otherwise, this won't
2429	* do the desired thing.	2444	* do the desired thing.
2430	*/	2445	*/
		2446	key_value *
2431	key_value * get_ob_key_link(const object * ob, const char * key) {	2447	get_ob_key_link (const object *ob, const char *key)
2432	key_value * link;	2448	{
2433
2434	for (link = ob->key_values; link != NULL; link = link->next) {	2449	for (key_value *link = ob->key_values; link; link = link->next)
2435	if (link->key == key) {	2450	if (link->key == key)
2436	return link;	2451	return link;
2437	}	2452
2438	}	2453	return 0;
2439		2454	}
2440	return NULL;
2441	}
2442		2455
2443	/*	2456	/*
2444	* Returns the value of op has an extra_field for key, or NULL.	2457	* Returns the value of op has an extra_field for key, or NULL.
2445	*	2458	*
2446	* The argument doesn't need to be a shared string.	2459	* The argument doesn't need to be a shared string.
2447	*	2460	*
2448	* The returned string is shared.	2461	* The returned string is shared.
2449	*/	2462	*/
		2463	const char *
2450	const char * get_ob_key_value(const object * op, const char * const key) {	2464	get_ob_key_value (const object *op, const char *const key)
		2465	{
2451	key_value * link;	2466	key_value *link;
2452	const char * canonical_key;	2467	shstr_cmp canonical_key (key);
		2468
		2469	if (!canonical_key)
2453		2470	{
2454	canonical_key = shstr::find (key);
2455
2456	if (canonical_key == NULL) {
2457	/* 1. There being a field named key on any object	2471	/* 1. There being a field named key on any object
2458	* implies there'd be a shared string to find.	2472	* implies there'd be a shared string to find.
2459	* 2. Since there isn't, no object has this field.	2473	* 2. Since there isn't, no object has this field.
2460	* 3. Therefore, *this* object doesn't have this field.	2474	* 3. Therefore, *this* object doesn't have this field.
2461	*/	2475	*/
2462	return NULL;	2476	return 0;
2463	}	2477	}
2464		2478
2465	/* This is copied from get_ob_key_link() above -	2479	/* This is copied from get_ob_key_link() above -
2466	* only 4 lines, and saves the function call overhead.	2480	* only 4 lines, and saves the function call overhead.
2467	*/	2481	*/
2468	for (link = op->key_values; link != NULL; link = link->next) {	2482	for (link = op->key_values; link; link = link->next)
2469	if (link->key == canonical_key) {	2483	if (link->key == canonical_key)
2470	return link->value;	2484	return link->value;
2471	}	2485
2472	}	2486	return 0;
2473	return NULL;
2474	}	2487	}
2475		2488
2476		2489
2477	/*	2490	/*
2478	* Updates the canonical_key in op to value.	2491	* Updates the canonical_key in op to value.
…		…
2482	* Unless add_key is TRUE, it won't add fields, only change the value of existing	2495	* Unless add_key is TRUE, it won't add fields, only change the value of existing
2483	* keys.	2496	* keys.
2484	*	2497	*
2485	* Returns TRUE on success.	2498	* Returns TRUE on success.
2486	*/	2499	*/
		2500	int
2487	int set_ob_key_value_s(object * op, const shstr &canonical_key, const char * value, int add_key) {	2501	set_ob_key_value_s (object *op, const shstr & canonical_key, const char *value, int add_key)
		2502	{
2488	key_value * field = NULL, *last=NULL;	2503	key_value *field = NULL, *last = NULL;
2489		2504
2490	for (field=op->key_values; field != NULL; field=field->next) {	2505	for (field = op->key_values; field != NULL; field = field->next)
		2506	{
2491	if (field->key != canonical_key) {	2507	if (field->key != canonical_key)
		2508	{
2492	last = field;	2509	last = field;
2493	continue;	2510	continue;
2494	}	2511	}
2495		2512
2496	if (value)	2513	if (value)
2497	field->value = value;	2514	field->value = value;
2498	else {	2515	else
		2516	{
2499	/* Basically, if the archetype has this key set,	2517	/* Basically, if the archetype has this key set,
2500	* we need to store the null value so when we save	2518	* we need to store the null value so when we save
2501	* it, we save the empty value so that when we load,	2519	* it, we save the empty value so that when we load,
2502	* we get this value back again.	2520	* we get this value back again.
2503	*/	2521	*/
2504	if (get_ob_key_link (&op->arch->clone, canonical_key))	2522	if (get_ob_key_link (&op->arch->clone, canonical_key))
2505	field->value = 0;	2523	field->value = 0;
		2524	else
		2525	{
		2526	if (last)
		2527	last->next = field->next;
2506	else	2528	else
2507	{
2508	if (last) last->next = field->next;
2509	else op->key_values = field->next;	2529	op->key_values = field->next;
2510		2530
2511	delete field;	2531	delete field;
2512	}	2532	}
2513	}	2533	}
2514	return TRUE;	2534	return TRUE;
2515	}	2535	}
2516	/* IF we get here, key doesn't exist */	2536	/* IF we get here, key doesn't exist */
2517		2537
2518	/* No field, we'll have to add it. */	2538	/* No field, we'll have to add it. */
2519		2539
2520	if (!add_key) {	2540	if (!add_key)
2521	return FALSE;	2541	return FALSE;
2522	}	2542
2523	/* There isn't any good reason to store a null	2543	/* There isn't any good reason to store a null
2524	* value in the key/value list. If the archetype has	2544	* value in the key/value list. If the archetype has
2525	* this key, then we should also have it, so shouldn't	2545	* this key, then we should also have it, so shouldn't
2526	* be here. If user wants to store empty strings,	2546	* be here. If user wants to store empty strings,
2527	* should pass in ""	2547	* should pass in ""
2528	*/	2548	*/
2529	if (value == NULL) return TRUE;	2549	if (value == NULL)
2530
2531	field = new key_value;
2532
2533	field->key = canonical_key;
2534	field->value = value;
2535	/* Usual prepend-addition. */
2536	field->next = op->key_values;
2537	op->key_values = field;
2538
2539	return TRUE;	2550	return TRUE;
		2551
		2552	field = new key_value;
		2553
		2554	field->key = canonical_key;
		2555	field->value = value;
		2556	/* Usual prepend-addition. */
		2557	field->next = op->key_values;
		2558	op->key_values = field;
		2559
		2560	return TRUE;
2540	}	2561	}
2541		2562
2542	/*	2563	/*
2543	* Updates the key in op to value.	2564	* Updates the key in op to value.
2544	*	2565	*
…		…
2546	* and not add new ones.	2567	* and not add new ones.
2547	* In general, should be little reason FALSE is ever passed in for add_key	2568	* In general, should be little reason FALSE is ever passed in for add_key
2548	*	2569	*
2549	* Returns TRUE on success.	2570	* Returns TRUE on success.
2550	*/	2571	*/
		2572	int
2551	int set_ob_key_value(object * op, const char *key, const char * value, int add_key)	2573	set_ob_key_value (object *op, const char *key, const char *value, int add_key)
2552	{	2574	{
2553	shstr key_ (key);	2575	shstr key_ (key);
		2576
2554	return set_ob_key_value_s (op, key_, value, add_key);	2577	return set_ob_key_value_s (op, key_, value, add_key);
2555	}	2578	}
		2579
		2580	object::depth_iterator::depth_iterator (object *container)
		2581	: iterator_base (container)
		2582	{
		2583	while (item->inv)
		2584	item = item->inv;
		2585	}
		2586
		2587	void
		2588	object::depth_iterator::next ()
		2589	{
		2590	if (item->below)
		2591	{
		2592	item = item->below;
		2593
		2594	while (item->inv)
		2595	item = item->inv;
		2596	}
		2597	else
		2598	item = item->env;
		2599	}
		2600
		2601	// return a suitable string describing an objetc in enough detail to find it
		2602	const char *
		2603	object::debug_desc (char *info) const
		2604	{
		2605	char info2[256 * 3];
		2606	char *p = info;
		2607
		2608	p += snprintf (p, 256, "%d=\"%s%s%s\"",
		2609	count,
		2610	&name,
		2611	title ? " " : "",
		2612	title ? (const char *)title : "");
		2613
		2614	if (env)
		2615	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));
		2616
		2617	if (map)
		2618	p += snprintf (p, 256, "(on %s@%d+%d)", map->path, x, y);
		2619
		2620	return info;
		2621	}
		2622
		2623	const char *
		2624	object::debug_desc () const
		2625	{
		2626	static char info[256 * 3];
		2627	return debug_desc (info);
		2628	}
		2629

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