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Comparing deliantra/server/common/object.C (file contents):
Revision 1.16 by root, Mon Sep 4 16:46:32 2006 UTC vs.
Revision 1.80 by root, Sat Dec 23 06:41:39 2006 UTC

1	/*
2	* static char *rcsid_object_c =
3	* "$Id: object.C,v 1.16 2006/09/04 16:46:32 root Exp $";
4	*/
5
6	/*	1	/*
7	CrossFire, A Multiplayer game for X-windows	2	CrossFire, A Multiplayer game for X-windows
8		3
9	Copyright (C) 2001 Mark Wedel & Crossfire Development Team	4	Copyright (C) 2001 Mark Wedel & Crossfire Development Team
10	Copyright (C) 1992 Frank Tore Johansen	5	Copyright (C) 1992 Frank Tore Johansen
…		…
21		16
22	You should have received a copy of the GNU General Public License	17	You should have received a copy of the GNU General Public License
23	along with this program; if not, write to the Free Software	18	along with this program; if not, write to the Free Software
24	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.	19	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
25		20
26	The authors can be reached via e-mail at crossfire-devel@real-time.com	21	The authors can be reached via e-mail at <crossfire@schmorp.de>
27	*/	22	*/
28		23
29	/* Eneq(@csd.uu.se): Added weight-modifiers in environment of objects.	24	/* Eneq(@csd.uu.se): Added weight-modifiers in environment of objects.
30	sub/add_weight will transcend the environment updating the carrying	25	sub/add_weight will transcend the environment updating the carrying
31	variable. */	26	variable. */
32	#include <global.h>	27	#include <global.h>
33	#ifndef WIN32 /* ---win32 exclude headers */
34	#include <stdio.h>	28	#include <stdio.h>
35	#include <sys/types.h>	29	#include <sys/types.h>
36	#include <sys/uio.h>	30	#include <sys/uio.h>
37	#endif /* win32 */
38	#include <object.h>	31	#include <object.h>
39	#include <funcpoint.h>	32	#include <funcpoint.h>
40	#include <skills.h>
41	#include <loader.h>	33	#include <loader.h>
		34
		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	};
59		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	}
60		133
61	/* 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
62	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	{
63	key_value * wants_field;	138	key_value *wants_field;
64		139
65	/* 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
66	* 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
67	* different structure or at least keep the lists sorted...	142	* different structure or at least keep the lists sorted...
68	*/	143	*/
69		144
70	/* For each field in wants, */	145	/* For each field in wants, */
71	for (wants_field = wants->key_values; wants_field != NULL; wants_field = wants_field->next) {	146	for (wants_field = wants->key_values; wants_field != NULL; wants_field = wants_field->next)
		147	{
72	key_value * has_field;	148	key_value *has_field;
73		149
74	/* Look for a field in has with the same key. */	150	/* Look for a field in has with the same key. */
75	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)
76		154	{
77	if (has_field == NULL) {
78	/* No field with that name. */	155	/* No field with that name. */
79	return FALSE;	156	return FALSE;
80	}
81		157	}
		158
82	/* Found the matching field. */	159	/* Found the matching field. */
83	if (has_field->value != wants_field->value) {	160	if (has_field->value != wants_field->value)
		161	{
84	/* 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. */
85	return FALSE;	163	return FALSE;
86	}	164	}
87		165
88	/* 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. */
89	}
90		167	}
		168
91	/* 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. */
92	return TRUE;	170	return TRUE;
93	}	171	}
94		172
95	/* 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
96	static int compare_ob_value_lists(const object * ob1, const object * ob2) {	175	compare_ob_value_lists (const object *ob1, const object *ob2)
		176	{
97	/* 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,
98	* so we need to run the comparison *twice*. :(	178	* so we need to run the comparison *twice*. :(
99	*/	179	*/
100	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);
101	}	181	}
102		182
103	/* 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
104	* they can be merged together.	184	* they can be merged together.
105	*	185	*
106	* 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
107	* replaces - this is mostly for clarity - a decent compiler should hopefully	187	* replaces - this is mostly for clarity - a decent compiler should hopefully
108	* reduce this to the same efficiency.	188	* reduce this to the same efficiency.
109	*	189	*
110	* Check nrof variable *before* calling CAN_MERGE()	190	* Check nrof variable *before* calling can_merge()
111	*	191	*
112	* Improvements made with merge: Better checking on potion, and also	192	* Improvements made with merge: Better checking on potion, and also
113	* check weight	193	* check weight
114	*/	194	*/
115		195
116	bool
117	object::can_merge (object *ob1, object *ob2)	196	bool object::can_merge_slow (object *ob1, object *ob2)
118	{	197	{
119	/* A couple quicksanity checks */	198	/* A couple quicksanity checks */
120	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)
121	return 0;	204	return 0;
122		205
123	if (ob1->speed != ob2->speed)	206	//TODO: this ain't working well, use nicer and correct overflow check
124	return 0;
125
126	/* 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
127	* 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
128	* used to store nrof).	209	* used to store nrof).
129	*/	210	*/
130	if (ob1->nrof + ob2->nrof >= 1UL << 31)	211	if (ob1->nrof + ob2->nrof >= 1UL << 31)
…		…
140	SET_FLAG (ob1, FLAG_BEEN_APPLIED);	221	SET_FLAG (ob1, FLAG_BEEN_APPLIED);
141		222
142	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))	223	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))
143	SET_FLAG (ob2, FLAG_BEEN_APPLIED);	224	SET_FLAG (ob2, FLAG_BEEN_APPLIED);
144		225
145		226	if ((ob1->flag ^ ob2->flag).reset (FLAG_INV_LOCKED).reset (FLAG_CLIENT_SENT).any ()
146	/* the 0x400000 on flags2 is FLAG_INV_LOCK. I don't think something	227	|| ob1->arch != ob2->arch
147	* being locked in inventory should prevent merging.
148	* 0x4 in flags3 is CLIENT_SENT
149	*/
150	if ((ob1->arch != ob2->arch) ||
151	(ob1->flags[0] != ob2->flags[0]) ||
152	(ob1->flags[1] != ob2->flags[1]) ||
153	((ob1->flags[2] & ~0x400000) != (ob2->flags[2] & ~0x400000)) ||
154	((ob1->flags[3] & ~0x4) != (ob2->flags[3] & ~0x4)) ||
155	(ob1->name != ob2->name) ||	228	|| ob1->name != ob2->name
156	(ob1->title != ob2->title) ||	229	|| ob1->title != ob2->title
157	(ob1->msg != ob2->msg) ||	230	|| ob1->msg != ob2->msg
158	(ob1->weight != ob2->weight) ||	231	|| ob1->weight != ob2->weight
159	(memcmp (&ob1->resist, &ob2->resist, sizeof (ob1->resist)) != 0) ||	232	|| memcmp (&ob1->resist, &ob2->resist, sizeof (ob1->resist))
160	(memcmp (&ob1->stats, &ob2->stats, sizeof (ob1->stats)) != 0) ||	233	|| memcmp (&ob1->stats , &ob2->stats , sizeof (ob1->stats) )
161	(ob1->attacktype != ob2->attacktype) ||	234	|| ob1->attacktype != ob2->attacktype
162	(ob1->magic != ob2->magic) ||	235	|| ob1->magic != ob2->magic
163	(ob1->slaying != ob2->slaying) ||	236	|| ob1->slaying != ob2->slaying
164	(ob1->skill != ob2->skill) ||	237	|| ob1->skill != ob2->skill
165	(ob1->value != ob2->value) ||	238	|| ob1->value != ob2->value
166	(ob1->animation_id != ob2->animation_id) ||	239	|| ob1->animation_id != ob2->animation_id
167	(ob1->client_type != ob2->client_type) ||	240	|| ob1->client_type != ob2->client_type
168	(ob1->materialname != ob2->materialname) ||	241	|| ob1->materialname != ob2->materialname
169	(ob1->lore != ob2->lore) ||	242	|| ob1->lore != ob2->lore
170	(ob1->subtype != ob2->subtype) ||	243	|| ob1->subtype != ob2->subtype
171	(ob1->move_type != ob2->move_type) ||	244	|| ob1->move_type != ob2->move_type
172	(ob1->move_block != ob2->move_block) ||	245	|| ob1->move_block != ob2->move_block
173	(ob1->move_allow != ob2->move_allow) ||	246	|| ob1->move_allow != ob2->move_allow
174	(ob1->move_on != ob2->move_on) ||	247	|| ob1->move_on != ob2->move_on
175	(ob1->move_off != ob2->move_off) ||	248	|| ob1->move_off != ob2->move_off
176	(ob1->move_slow != ob2->move_slow) ||	249	|| ob1->move_slow != ob2->move_slow
177	(ob1->move_slow_penalty != ob2->move_slow_penalty))	250	|| ob1->move_slow_penalty != ob2->move_slow_penalty)
178	return 0;	251	return 0;
179		252
180	/* This is really a spellbook check - really, we should	253	/* This is really a spellbook check - really, we should
181	* check all objects in the inventory.	254	* check all objects in the inventory.
182	*/	255	*/
183	if (ob1->inv || ob2->inv)	256	if (ob1->inv || ob2->inv)
184	{	257	{
185	/* 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 */
186	if ((ob1->inv && !ob2->inv) || (ob2->inv && !ob1->inv))	259	if ((ob1->inv && !ob2->inv) || (ob2->inv && !ob1->inv))
187	return 0;	260	return 0;
188		261
189	/* Now check to see if the two inventory objects could merge */	262	/* Now check to see if the two inventory objects could merge */
190	if (!CAN_MERGE (ob1->inv, ob2->inv))	263	if (!object::can_merge (ob1->inv, ob2->inv))
191	return 0;	264	return 0;
192		265
193	/* 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
194	* if it is valid.	267	* if it is valid.
195	*/	268	*/
196	}	269	}
…		…
204		277
205	/* 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
206	* 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
207	* check?	280	* check?
208	*/	281	*/
209	if (!QUERY_FLAG (ob1, FLAG_ANIMATE)	282	if (!QUERY_FLAG (ob1, FLAG_ANIMATE) && FABS ((ob1)->speed) > MIN_ACTIVE_SPEED)
210	&& FABS ((ob1)->speed) > MIN_ACTIVE_SPEED)
211	return 0;	283	return 0;
212		284
213	switch (ob1->type)	285	switch (ob1->type)
214	{	286	{
215	case SCROLL:	287	case SCROLL:
216	if (ob1->level != ob2->level)	288	if (ob1->level != ob2->level)
217	return 0;	289	return 0;
218	break;	290	break;
219	}	291	}
220		292
221	if (ob1->key_values != NULL || ob2->key_values != NULL)	293	if (ob1->key_values != NULL || ob2->key_values != NULL)
222	{	294	{
223	/* At least one of these has key_values. */	295	/* At least one of these has key_values. */
224	if ((ob1->key_values == NULL) != (ob2->key_values == NULL))	296	if ((ob1->key_values == NULL) != (ob2->key_values == NULL))
225	/* One has fields, but the other one doesn't. */	297	/* One has fields, but the other one doesn't. */
226	return 0;	298	return 0;
227	else if (!compare_ob_value_lists (ob1, ob2))	299	else if (!compare_ob_value_lists (ob1, ob2))
228	return 0;	300	return 0;
229	}	301	}
230		302
231	//TODO: generate an event or call into perl for additional checks	303	//TODO: generate an event or call into perl for additional checks
232	if (ob1->self || ob2->self)	304	if (ob1->self || ob2->self)
233	{	305	{
234	ob1->optimise ();	306	ob1->optimise ();
235	ob2->optimise ();	307	ob2->optimise ();
236		308
237	if (ob1->self || ob2->self)	309	if (ob1->self || ob2->self)
238	return 0;	310	return 0;
239	}	311	}
240		312
241	/* Everything passes, must be OK. */	313	/* Everything passes, must be OK. */
242	return 1;	314	return 1;
243	}	315	}
		316
244	/*	317	/*
245	* sum_weight() is a recursive function which calculates the weight	318	* sum_weight() is a recursive function which calculates the weight
246	* 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
247	* containers are carrying, and sums it up.	320	* containers are carrying, and sums it up.
248	*/	321	*/
249	signed long sum_weight(object *op) {	322	long
		323	sum_weight (object *op)
		324	{
250	signed long sum;	325	long sum;
251	object *inv;	326	object *inv;
		327
252	for(sum = 0, inv = op->inv; inv != NULL; inv = inv->below) {	328	for (sum = 0, inv = op->inv; inv != NULL; inv = inv->below)
		329	{
253	if (inv->inv)	330	if (inv->inv)
254	sum_weight(inv);	331	sum_weight (inv);
255	sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1);	332	sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1);
256	}	333	}
		334
257	if (op->type == CONTAINER && op->stats.Str)	335	if (op->type == CONTAINER && op->stats.Str)
258	sum = (sum * (100 - op->stats.Str))/100;	336	sum = (sum * (100 - op->stats.Str)) / 100;
		337
259	if(op->carrying != sum)	338	if (op->carrying != sum)
260	op->carrying = sum;	339	op->carrying = sum;
		340
261	return sum;	341	return sum;
262	}	342	}
263		343
264	/**	344	/**
265	* Return the outermost environment object for a given object.	345	* Return the outermost environment object for a given object.
266	*/	346	*/
267		347
		348	object *
268	object *object_get_env_recursive (object *op) {	349	object_get_env_recursive (object *op)
		350	{
269	while (op->env != NULL)	351	while (op->env != NULL)
270	op = op->env;	352	op = op->env;
271	return op;	353	return op;
272	}
273
274	/*
275	* Eneq(@csd.uu.se): Since we can have items buried in a character we need
276	* a better check. We basically keeping traversing up until we can't
277	* or find a player.
278	*/
279
280	object *is_player_inv (object *op) {
281	for (;op!=NULL&&op->type!=PLAYER; op=op->env)
282	if (op->env==op)
283	op->env = NULL;
284	return op;
285	}	354	}
286		355
287	/*	356	/*
288	* Used by: Crossedit: dump. Server DM commands: dumpbelow, dump.	357	* Used by: Crossedit: dump. Server DM commands: dumpbelow, dump.
289	* Some error messages.	358	* Some error messages.
290	* 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.
291	*/	360	*/
292		361
293	void dump_object2(object *op) {	362	char *
294	errmsg[0] = 0;
295	return;
296	//TODO//D#d#
297	#if 0
298	char *cp;
299	/* object *tmp;*/
300
301	if(op->arch!=NULL) {
302	strcat(errmsg,"arch ");
303	strcat(errmsg,op->arch->name?op->arch->name:"(null)");
304	strcat(errmsg,"\n");
305	if((cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)
306	strcat(errmsg,cp);
307	#if 0
308	/* Don't dump player diffs - they are too long, mostly meaningless, and
309	* will overflow the buffer.
310	* Changed so that we don't dump inventory either. This may
311	* also overflow the buffer.
312	*/
313	if(op->type!=PLAYER && (cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)
314	strcat(errmsg,cp);
315	for (tmp=op->inv; tmp; tmp=tmp->below)
316	dump_object2(tmp);
317	#endif
318	strcat(errmsg,"end\n");
319	} else {
320	strcat(errmsg,"Object ");
321	if (op->name==NULL) strcat(errmsg, "(null)");
322	else strcat(errmsg,op->name);
323	strcat(errmsg,"\n");
324	#if 0
325	if((cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)
326	strcat(errmsg,cp);
327	for (tmp=op->inv; tmp; tmp=tmp->below)
328	dump_object2(tmp);
329	#endif
330	strcat(errmsg,"end\n");
331	}
332	#endif
333	}
334
335	/*
336	* Dumps an object. Returns output in the static global errmsg array.
337	*/
338
339	void dump_object(object *op) {	363	dump_object (object *op)
340	if(op==NULL) {	364	{
341	strcpy(errmsg,"[NULL pointer]");	365	if (!op)
342	return;	366	return strdup ("[NULLOBJ]");
343	}
344	errmsg[0]='\0';
345	dump_object2(op);
346	}
347		367
348	void dump_all_objects(void) {	368	object_freezer freezer;
349	object *op;	369	save_object (freezer, op, 3);
350	for(op=objects;op!=NULL;op=op->next) {	370	return freezer.as_string ();
351	dump_object(op);
352	fprintf(logfile, "Object %d\n:%s\n", op->count, errmsg);
353	}
354	}	371	}
355		372
356	/*	373	/*
357	* 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
358	* multi-object 1 which is closest to the second object.	375	* multi-object 1 which is closest to the second object.
359	* If it's not a multi-object, it is returned.	376	* If it's not a multi-object, it is returned.
360	*/	377	*/
361		378
		379	object *
362	object *get_nearest_part(object *op, const object *pl) {	380	get_nearest_part (object *op, const object *pl)
		381	{
363	object *tmp,*closest;	382	object *tmp, *closest;
364	int last_dist,i;	383	int last_dist, i;
		384
365	if(op->more==NULL)	385	if (op->more == NULL)
366	return op;	386	return op;
367	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)
368	if((i=distance(tmp,pl))<last_dist)	388	if ((i = distance (tmp, pl)) < last_dist)
369	closest=tmp,last_dist=i;	389	closest = tmp, last_dist = i;
370	return closest;	390	return closest;
371	}	391	}
372		392
373	/*	393	/*
374	* 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.
375	*/	395	*/
376		396
		397	object *
377	object *find_object(tag_t i) {	398	find_object (tag_t i)
378	object *op;	399	{
379	for(op=objects;op!=NULL;op=op->next)	400	for (object *op = object::first; op; op = op->next)
380	if(op->count==i)	401	if (op->count == i)
381	break;	402	return op;
		403
382	return op;	404	return 0;
383	}	405	}
384		406
385	/*	407	/*
386	* 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.
387	* Used only by the patch command, but not all that useful.	409	* Used only by the patch command, but not all that useful.
388	* Enables features like "patch <name-of-other-player> food 999"	410	* Enables features like "patch <name-of-other-player> food 999"
389	*/	411	*/
390		412
		413	object *
391	object *find_object_name(const char *str) {	414	find_object_name (const char *str)
392	const char *name = shstr::find (str);	415	{
		416	shstr_cmp str_ (str);
393	object *op;	417	object *op;
		418
394	for(op=objects;op!=NULL;op=op->next)	419	for (op = object::first; op != NULL; op = op->next)
395	if(&op->name == name)	420	if (op->name == str_)
396	break;	421	break;
397		422
398	return op;	423	return op;
399	}	424	}
400		425
		426	void
401	void free_all_object_data ()	427	free_all_object_data ()
402	{	428	{
403	LOG (llevDebug, "%d allocated objects\n", nrofallocobjects);	429	LOG (llevDebug, "%d allocated objects\n", nrofallocobjects);
404	}
405
406	/*
407	* Returns the object which this object marks as being the owner.
408	* A id-scheme is used to avoid pointing to objects which have been
409	* freed and are now reused. If this is detected, the owner is
410	* set to NULL, and NULL is returned.
411	* Changed 2004-02-12 - if the player is setting at the play again
412	* prompt, he is removed, and we don't want to treat him as an owner of
413	* anything, so check removed flag. I don't expect that this should break
414	* anything - once an object is removed, it is basically dead anyways.
415	*/
416
417	object *get_owner(object *op) {
418	if(op->owner==NULL)
419	return NULL;
420
421	if (!QUERY_FLAG(op->owner,FLAG_FREED) && !QUERY_FLAG(op->owner, FLAG_REMOVED) &&
422	op->owner->count==op->ownercount)
423	return op->owner;
424
425	op->owner=NULL;
426	op->ownercount=0;
427	return NULL;
428	}
429
430	void clear_owner(object *op)
431	{
432	if (!op) return;
433
434	if (op->owner && op->ownercount == op->owner->count)
435	op->owner->refcount--;
436
437	op->owner = NULL;
438	op->ownercount = 0;
439	}	430	}
440		431
441	/*	432	/*
442	* 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
443	* skill and experience objects.	434	* skill and experience objects.
444	*/	435	*/
445	void set_owner (object *op, object *owner)	436	void
		437	object::set_owner (object *owner)
446	{	438	{
447	if(owner==NULL||op==NULL)	439	if (!owner)
448	return;	440	return;
449		441
450	/* next line added to allow objects which own objects */	442	/* next line added to allow objects which own objects */
451	/* 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
452	* with the fireball owning a poison cloud which then owned the	444	* with the fireball owning a poison cloud which then owned the
453	* 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
454	* freed and then another object replacing it. Since the ownercounts	446	* freed and then another object replacing it. Since the ownercounts
455	* didn't match, this check is valid and I believe that cause is valid.	447	* didn't match, this check is valid and I believe that cause is valid.
456	*/	448	*/
457	while (owner->owner && owner!=owner->owner &&	449	while (owner->owner)
458	owner->ownercount==owner->owner->count) owner=owner->owner;	450	owner = owner->owner;
459		451
460	/* IF the owner still has an owner, we did not resolve to a final owner.
461	* so lets not add to that.
462	*/
463	if (owner->owner) return;
464
465	op->owner=owner;	452	this->owner = owner;
466
467	op->ownercount=owner->count;
468	owner->refcount++;
469
470	}
471
472	/* Set the owner to clone's current owner and set the skill and experience
473	* objects to clone's objects (typically those objects that where the owner's
474	* current skill and experience objects at the time when clone's owner was
475	* set - not the owner's current skill and experience objects).
476	*
477	* Use this function if player created an object (e.g. fire bullet, swarm
478	* spell), and this object creates further objects whose kills should be
479	* accounted for the player's original skill, even if player has changed
480	* skills meanwhile.
481	*/
482	void copy_owner (object *op, object *clone)
483	{
484	object *owner = get_owner (clone);
485	if (owner == NULL) {
486	/* players don't have owners - they own themselves. Update
487	* as appropriate.
488	*/
489	if (clone->type == PLAYER) owner=clone;
490	else return;
491	}
492	set_owner(op, owner);
493
494	}	453	}
495		454
496	/* Zero the key_values on op, decrementing the shared-string	455	/* Zero the key_values on op, decrementing the shared-string
497	* refcounts and freeing the links.	456	* refcounts and freeing the links.
498	*/	457	*/
		458	static void
499	static void free_key_values(object * op)	459	free_key_values (object *op)
500	{	460	{
501	for (key_value *i = op->key_values; i != 0; )	461	for (key_value *i = op->key_values; i != 0;)
502	{	462	{
503	key_value *next = i->next;	463	key_value *next = i->next;
504	delete i;	464	delete i;
		465
505	i = next;	466	i = next;
506	}	467	}
507		468
508	op->key_values = 0;	469	op->key_values = 0;
509	}	470	}
510		471
511	void object::clear ()
512	{
513	attachable_base::clear ();
514
515	free_key_values (this);
516
517	name = 0;
518	name_pl = 0;
519	title = 0;
520	race = 0;
521	slaying = 0;
522	skill = 0;
523	msg = 0;
524	lore = 0;
525	custom_name = 0;
526	materialname = 0;
527
528	memset (static_cast<object_pod *>(this), 0, sizeof (object_pod));
529
530	SET_FLAG (this, FLAG_REMOVED);
531	}
532
533	void object::clone (object *destination)
534	{
535	*(object_copy *)destination = *(object_copy *)this;
536	*(object_pod *)destination = *(object_pod *)this;
537
538	if (self || cb)
539	INVOKE_OBJECT (CLONE, this, ARG_OBJECT (destination));
540	}
541
542	/*	472	/*
543	* clear_object() frees everything allocated by an object, and also
544	* clears all variables and flags to default settings.
545	*/
546
547	void clear_object (object *op)
548	{
549	op->clear ();
550
551	op->contr = NULL;
552	op->below = NULL;
553	op->above = NULL;
554	op->inv = NULL;
555	op->container=NULL;
556	op->env=NULL;
557	op->more=NULL;
558	op->head=NULL;
559	op->map=NULL;
560	op->refcount=0;
561	op->active_next = NULL;
562	op->active_prev = NULL;
563	/* What is not cleared is next, prev, and count */
564
565	op->expmul = 1.0;
566	op->face = blank_face;
567	op->attacked_by_count = -1;
568
569	if (settings.casting_time)
570	op->casting_time = -1;
571	}
572
573	/*
574	* copy object first frees everything allocated by the second object,	473	* copy_to first frees everything allocated by the dst object,
575	* and then copies the contends of the first object into the second	474	* and then copies the contents of itself into the second
576	* object, allocating what needs to be allocated. Basically, any	475	* object, allocating what needs to be allocated. Basically, any
577	* 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,
578	* 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
579	* will point at garbage.	478	* will point at garbage.
580	*/	479	*/
581		480	void
582	void copy_object (object *op2, object *op)	481	object::copy_to (object *dst)
583	{	482	{
584	bool is_freed = QUERY_FLAG (op, FLAG_FREED);	483	bool is_freed = QUERY_FLAG (dst, FLAG_FREED);
585	bool is_removed = QUERY_FLAG (op, FLAG_REMOVED);	484	bool is_removed = QUERY_FLAG (dst, FLAG_REMOVED);
586		485
587	op2->clone (op);	486	*(object_copy *)dst = *this;
588		487
589	if (is_freed) SET_FLAG (op, FLAG_FREED);	488	if (self || cb)
590	if (is_removed) SET_FLAG (op, FLAG_REMOVED);	489	INVOKE_OBJECT (CLONE, this, ARG_OBJECT (dst));
591		490
		491	if (is_freed)
		492	SET_FLAG (dst, FLAG_FREED);
		493
		494	if (is_removed)
		495	SET_FLAG (dst, FLAG_REMOVED);
		496
592	if (op2->speed < 0)	497	if (speed < 0)
593	op->speed_left = op2->speed_left - RANDOM() % 200 / 100.0;	498	dst->speed_left = speed_left - RANDOM () % 200 / 100.0;
594		499
595	/* Copy over key_values, if any. */	500	/* Copy over key_values, if any. */
596	if (op2->key_values != NULL)	501	if (key_values)
597	{	502	{
598	key_value *tail = NULL;	503	key_value *tail = 0;
599	key_value *i;	504	key_value *i;
600		505
601	op->key_values = NULL;	506	dst->key_values = 0;
602		507
603	for (i = op2->key_values; i != NULL; i = i->next)	508	for (i = key_values; i; i = i->next)
604	{	509	{
605	key_value *new_link = new key_value;	510	key_value *new_link = new key_value;
606		511
607	new_link->next = NULL;	512	new_link->next = 0;
608	new_link->key = i->key;	513	new_link->key = i->key;
609	new_link->value = i->value;	514	new_link->value = i->value;
610		515
611	/* Try and be clever here, too. */	516	/* Try and be clever here, too. */
612	if (op->key_values == NULL)	517	if (!dst->key_values)
613	{	518	{
614	op->key_values = new_link;	519	dst->key_values = new_link;
615	tail = new_link;	520	tail = new_link;
616	}	521	}
617	else	522	else
618	{	523	{
619	tail->next = new_link;	524	tail->next = new_link;
620	tail = new_link;	525	tail = new_link;
621	}	526	}
622	}	527	}
623	}	528	}
624		529
625	update_ob_speed (op);	530	update_ob_speed (dst);
626	}	531	}
627		532
628	/*	533	object *
629	* get_object() grabs an object from the list of unused objects, makes	534	object::clone ()
630	* sure it is initialised, and returns it.
631	* If there are no free objects, expand_objects() is called to get more.
632	*/
633
634	object *get_object ()
635	{	535	{
636	object *op = new object;	536	object *neu = create ();
637		537	copy_to (neu);
638	op->count = ++ob_count;
639
640	op->active_next = 0;
641	op->active_prev = 0;
642
643	op->next = objects;
644	op->prev = 0;
645
646	if (objects)
647	objects->prev = op;
648
649	objects = op;
650
651	SET_FLAG (op, FLAG_REMOVED);
652
653	op->expmul = 1.0;
654	op->face = blank_face;
655	op->attacked_by_count = -1;
656
657	return op;	538	return neu;
658	}	539	}
659		540
660	/*	541	/*
661	* If an object with the IS_TURNABLE() flag needs to be turned due	542	* If an object with the IS_TURNABLE() flag needs to be turned due
662	* to the closest player being on the other side, this function can	543	* to the closest player being on the other side, this function can
663	* be called to update the face variable, _and_ how it looks on the map.	544	* be called to update the face variable, _and_ how it looks on the map.
664	*/	545	*/
665		546
		547	void
666	void update_turn_face(object *op) {	548	update_turn_face (object *op)
		549	{
667	if(!QUERY_FLAG(op,FLAG_IS_TURNABLE)||op->arch==NULL)	550	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || op->arch == NULL)
668	return;	551	return;
669	SET_ANIMATION(op, op->direction);	552	SET_ANIMATION (op, op->direction);
670	update_object(op,UP_OBJ_FACE);	553	update_object (op, UP_OBJ_FACE);
671	}	554	}
672		555
673	/*	556	/*
674	* Updates the speed of an object. If the speed changes from 0 to another	557	* Updates the speed of an object. If the speed changes from 0 to another
675	* value, or vice versa, then add/remove the object from the active list.	558	* value, or vice versa, then add/remove the object from the active list.
676	* This function needs to be called whenever the speed of an object changes.	559	* This function needs to be called whenever the speed of an object changes.
677	*/	560	*/
678		561	void
679	void update_ob_speed(object *op) {	562	update_ob_speed (object *op)
		563	{
680	extern int arch_init;	564	extern int arch_init;
681		565
682	/* No reason putting the archetypes objects on the speed list,	566	/* No reason putting the archetypes objects on the speed list,
683	* since they never really need to be updated.	567	* since they never really need to be updated.
684	*/	568	*/
685		569
686	if (QUERY_FLAG(op, FLAG_FREED) && op->speed) {	570	if (QUERY_FLAG (op, FLAG_FREED) && op->speed)
		571	{
687	LOG(llevError,"Object %s is freed but has speed.\n", &op->name);	572	LOG (llevError, "Object %s is freed but has speed.\n", &op->name);
688	#ifdef MANY_CORES	573	#ifdef MANY_CORES
689	abort();	574	abort ();
690	#else	575	#else
691	op->speed = 0;	576	op->speed = 0;
692	#endif	577	#endif
693	}	578	}
		579
694	if (arch_init) {	580	if (arch_init)
		581	return;
		582
		583	if (FABS (op->speed) > MIN_ACTIVE_SPEED)
		584	{
		585	/* If already on active list, don't do anything */
		586	if (op->active_next || op->active_prev || op == active_objects)
695	return;	587	return;
696	}
697	if (FABS(op->speed)>MIN_ACTIVE_SPEED) {
698	/* If already on active list, don't do anything */
699	if (op->active_next || op->active_prev || op==active_objects)
700	return;
701		588
702	/* process_events() expects us to insert the object at the beginning	589	/* process_events() expects us to insert the object at the beginning
703	* of the list. */	590	* of the list. */
704	op->active_next = active_objects;	591	op->active_next = active_objects;
		592
705	if (op->active_next!=NULL)	593	if (op->active_next != NULL)
706	op->active_next->active_prev = op;	594	op->active_next->active_prev = op;
		595
707	active_objects = op;	596	active_objects = op;
		597	}
		598	else
708	}	599	{
709	else {
710	/* If not on the active list, nothing needs to be done */	600	/* If not on the active list, nothing needs to be done */
711	if (!op->active_next && !op->active_prev && op!=active_objects)	601	if (!op->active_next && !op->active_prev && op != active_objects)
712	return;	602	return;
713		603
714	if (op->active_prev==NULL) {	604	if (op->active_prev == NULL)
		605	{
715	active_objects = op->active_next;	606	active_objects = op->active_next;
		607
716	if (op->active_next!=NULL)	608	if (op->active_next != NULL)
717	op->active_next->active_prev = NULL;	609	op->active_next->active_prev = NULL;
		610	}
		611	else
718	}	612	{
719	else {
720	op->active_prev->active_next = op->active_next;	613	op->active_prev->active_next = op->active_next;
		614
721	if (op->active_next)	615	if (op->active_next)
722	op->active_next->active_prev = op->active_prev;	616	op->active_next->active_prev = op->active_prev;
723	}	617	}
		618
724	op->active_next = NULL;	619	op->active_next = NULL;
725	op->active_prev = NULL;	620	op->active_prev = NULL;
726	}	621	}
727	}	622	}
728		623
729	/* This function removes object 'op' from the list of active	624	/* This function removes object 'op' from the list of active
730	* objects.	625	* objects.
…		…
732	* reference maps where you don't want an object that isn't	627	* reference maps where you don't want an object that isn't
733	* in play chewing up cpu time getting processed.	628	* in play chewing up cpu time getting processed.
734	* The reverse of this is to call update_ob_speed, which	629	* The reverse of this is to call update_ob_speed, which
735	* will do the right thing based on the speed of the object.	630	* will do the right thing based on the speed of the object.
736	*/	631	*/
		632	void
737	void remove_from_active_list(object *op)	633	remove_from_active_list (object *op)
738	{	634	{
739	/* If not on the active list, nothing needs to be done */	635	/* If not on the active list, nothing needs to be done */
740	if (!op->active_next && !op->active_prev && op!=active_objects)	636	if (!op->active_next && !op->active_prev && op != active_objects)
741	return;	637	return;
742		638
743	if (op->active_prev==NULL) {	639	if (op->active_prev == NULL)
		640	{
744	active_objects = op->active_next;	641	active_objects = op->active_next;
745	if (op->active_next!=NULL)	642	if (op->active_next != NULL)
746	op->active_next->active_prev = NULL;	643	op->active_next->active_prev = NULL;
		644	}
		645	else
747	}	646	{
748	else {
749	op->active_prev->active_next = op->active_next;	647	op->active_prev->active_next = op->active_next;
750	if (op->active_next)	648	if (op->active_next)
751	op->active_next->active_prev = op->active_prev;	649	op->active_next->active_prev = op->active_prev;
752	}	650	}
753	op->active_next = NULL;	651	op->active_next = NULL;
754	op->active_prev = NULL;	652	op->active_prev = NULL;
755	}	653	}
756		654
757	/*	655	/*
758	* update_object() updates the array which represents the map.	656	* update_object() updates the the map.
759	* It takes into account invisible objects (and represent squares covered	657	* It takes into account invisible objects (and represent squares covered
760	* by invisible objects by whatever is below them (unless it's another	658	* by invisible objects by whatever is below them (unless it's another
761	* invisible object, etc...)	659	* invisible object, etc...)
762	* If the object being updated is beneath a player, the look-window	660	* If the object being updated is beneath a player, the look-window
763	* of that player is updated (this might be a suboptimal way of	661	* of that player is updated (this might be a suboptimal way of
764	* updating that window, though, since update_object() is called _often_)	662	* updating that window, though, since update_object() is called _often_)
765	*	663	*
766	* action is a hint of what the caller believes need to be done.	664	* action is a hint of what the caller believes need to be done.
767	* For example, if the only thing that has changed is the face (due to
768	* an animation), we don't need to call update_position until that actually
769	* comes into view of a player. OTOH, many other things, like addition/removal
770	* of walls or living creatures may need us to update the flags now.
771	* current action are:	665	* current action are:
772	* UP_OBJ_INSERT: op was inserted	666	* UP_OBJ_INSERT: op was inserted
773	* UP_OBJ_REMOVE: op was removed	667	* UP_OBJ_REMOVE: op was removed
774	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update	668	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update
775	* as that is easier than trying to look at what may have changed.	669	* as that is easier than trying to look at what may have changed.
776	* UP_OBJ_FACE: only the objects face has changed.	670	* UP_OBJ_FACE: only the objects face has changed.
777	*/	671	*/
778		672	void
779	void update_object(object *op, int action) {	673	update_object (object *op, int action)
780	int update_now=0, flags;	674	{
781	MoveType move_on, move_off, move_block, move_slow;	675	MoveType move_on, move_off, move_block, move_slow;
782		676
783	if (op == NULL) {	677	if (op == NULL)
		678	{
784	/* this should never happen */	679	/* this should never happen */
785	LOG(llevDebug,"update_object() called for NULL object.\n");	680	LOG (llevDebug, "update_object() called for NULL object.\n");
786	return;	681	return;
787	}
788		682	}
789	if(op->env!=NULL) {	683
		684	if (op->env)
		685	{
790	/* Animation is currently handled by client, so nothing	686	/* Animation is currently handled by client, so nothing
791	* to do in this case.	687	* to do in this case.
792	*/	688	*/
793	return;	689	return;
794	}	690	}
795		691
796	/* If the map is saving, don't do anything as everything is	692	/* If the map is saving, don't do anything as everything is
797	* going to get freed anyways.	693	* going to get freed anyways.
798	*/	694	*/
799	if (!op->map || op->map->in_memory == MAP_SAVING) return;	695	if (!op->map || op->map->in_memory == MAP_SAVING)
800		696	return;
		697
801	/* make sure the object is within map boundaries */	698	/* make sure the object is within map boundaries */
802	if (op->x < 0 || op->x >= MAP_WIDTH(op->map) ||	699	if (op->x < 0 || op->x >= MAP_WIDTH (op->map) || op->y < 0 || op->y >= MAP_HEIGHT (op->map))
803	op->y < 0 || op->y >= MAP_HEIGHT(op->map)) {	700	{
804	LOG(llevError,"update_object() called for object out of map!\n");	701	LOG (llevError, "update_object() called for object out of map!\n");
805	#ifdef MANY_CORES	702	#ifdef MANY_CORES
806	abort();	703	abort ();
807	#endif	704	#endif
808	return;	705	return;
809	}
810		706	}
811	flags = GET_MAP_FLAGS(op->map, op->x, op->y);
812	SET_MAP_FLAGS(op->map, op->x, op->y, flags | P_NEED_UPDATE);
813	move_slow = GET_MAP_MOVE_SLOW(op->map, op->x, op->y);
814	move_on = GET_MAP_MOVE_ON(op->map, op->x, op->y);
815	move_block = GET_MAP_MOVE_BLOCK(op->map, op->x, op->y);
816	move_off = GET_MAP_MOVE_OFF(op->map, op->x, op->y);
817		707
		708	mapspace &m = op->ms ();
		709
		710	if (m.flags_ & P_NEED_UPDATE)
		711	/* nop */;
818	if (action == UP_OBJ_INSERT) {	712	else if (action == UP_OBJ_INSERT)
		713	{
		714	// this is likely overkill, TODO: revisit (schmorp)
819	if (QUERY_FLAG(op, FLAG_BLOCKSVIEW) && !(flags & P_BLOCKSVIEW))	715	if ((QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(m.flags_ & P_BLOCKSVIEW))
820	update_now=1;
821
822	if (QUERY_FLAG(op, FLAG_NO_MAGIC) && !(flags & P_NO_MAGIC))	716	|| (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(m.flags_ & P_NO_MAGIC))
823	update_now=1;	717	|| (op->type == PLAYER && !(m.flags_ & P_PLAYER))
824		718	|| (op->type == SAFE_GROUND && !(m.flags_ & P_SAFE))
		719	|| (QUERY_FLAG (op, FLAG_ALIVE) && !(m.flags_ & P_IS_ALIVE))
825	if (QUERY_FLAG(op, FLAG_DAMNED) && !(flags & P_NO_CLERIC))	720	|| (QUERY_FLAG (op, FLAG_DAMNED) && !(m.flags_ & P_NO_CLERIC))
826	update_now=1;	721	|| (m.move_on | op->move_on ) != m.move_on
827
828	if (QUERY_FLAG(op, FLAG_ALIVE) && !(flags & P_IS_ALIVE))
829	update_now=1;
830
831	if ((move_on | op->move_on) != move_on) update_now=1;
832	if ((move_off | op->move_off) != move_off) update_now=1;	722	|| (m.move_off | op->move_off ) != m.move_off
		723	|| (m.move_slow | op->move_slow) != m.move_slow
833	/* This isn't perfect, but I don't expect a lot of objects to	724	/* This isn't perfect, but I don't expect a lot of objects to
834	* to have move_allow right now.	725	* to have move_allow right now.
835	*/	726	*/
836	if (((move_block | op->move_block) & ~op->move_allow) != move_block)	727	|| ((m.move_block | op->move_block) & ~op->move_allow) != m.move_block
837	update_now=1;	728	|| 1) // the above is not strong enough a test to skip updating. los maybe? TODO (Schmorp)
838	if ((move_slow | op->move_slow) != move_slow) update_now=1;	729	m.flags_ = P_NEED_UPDATE;
839	}	730	}
840	/* if the object is being removed, we can't make intelligent	731	/* if the object is being removed, we can't make intelligent
841	* decisions, because remove_ob can't really pass the object	732	* decisions, because remove_ob can't really pass the object
842	* that is being removed.	733	* that is being removed.
843	*/	734	*/
844	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE) {	735	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)
845	update_now=1;	736	m.flags_ = P_NEED_UPDATE;
846	} else if (action == UP_OBJ_FACE) {	737	else if (action == UP_OBJ_FACE)
847	/* Nothing to do for that case */	738	/* Nothing to do for that case */ ;
848	}
849	else {	739	else
850	LOG(llevError,"update_object called with invalid action: %d\n", action);	740	LOG (llevError, "update_object called with invalid action: %d\n", action);
851	}
852		741
853	if (update_now) {
854	SET_MAP_FLAGS(op->map, op->x, op->y, flags | P_NO_ERROR | P_NEED_UPDATE);
855	update_position(op->map, op->x, op->y);
856	}
857
858	if(op->more!=NULL)	742	if (op->more)
859	update_object(op->more, action);	743	update_object (op->more, action);
860	}	744	}
861		745
		746	object::vector object::mortals;
		747	object::vector object::objects; // not yet used
		748	object *object::first;
		749
		750	void object::free_mortals ()
		751	{
		752	for (AUTODECL (i, mortals.begin ()); i != mortals.end ();)
		753	if ((*i)->refcnt)
		754	++i; // further delay freeing
		755	else
		756	{
		757	delete *i;
		758	mortals.erase (i);
		759	}
		760	}
		761
		762	object::object ()
		763	{
		764	SET_FLAG (this, FLAG_REMOVED);
		765
		766	expmul = 1.0;
		767	face = blank_face;
		768	}
		769
		770	object::~object ()
		771	{
		772	free_key_values (this);
		773	}
		774
		775	void object::link ()
		776	{
		777	count = ++ob_count;
		778	uuid = gen_uuid ();
		779
		780	prev = 0;
		781	next = object::first;
		782
		783	if (object::first)
		784	object::first->prev = this;
		785
		786	object::first = this;
		787	}
		788
		789	void object::unlink ()
		790	{
		791	if (this == object::first)
		792	object::first = next;
		793
		794	/* Remove this object from the list of used objects */
		795	if (prev) prev->next = next;
		796	if (next) next->prev = prev;
		797
		798	prev = 0;
		799	next = 0;
		800	}
		801
		802	object *object::create ()
		803	{
		804	object *op = new object;
		805	op->link ();
		806	return op;
		807	}
862		808
863	/*	809	/*
864	* free_object() frees everything allocated by an object, removes	810	* free_object() frees everything allocated by an object, removes
865	* it from the list of used objects, and puts it on the list of	811	* it from the list of used objects, and puts it on the list of
866	* free objects. The IS_FREED() flag is set in the object.	812	* free objects. The IS_FREED() flag is set in the object.
867	* The object must have been removed by remove_ob() first for	813	* The object must have been removed by remove_ob() first for
868	* this function to succeed.	814	* this function to succeed.
869	*	815	*
870	* If free_inventory is set, free inventory as well. Else drop items in	816	* If destroy_inventory is set, free inventory as well. Else drop items in
871	* inventory to the ground.	817	* inventory to the ground.
872	*/	818	*/
873		819	void object::destroy (bool destroy_inventory)
874	void
875	free_object (object * ob)
876	{	820	{
877	free_object2 (ob, 0);
878	}
879
880	void
881	free_object2 (object * ob, int free_inventory)
882	{
883	object *tmp, *op;
884
885	if (!QUERY_FLAG (ob, FLAG_REMOVED))	821	if (QUERY_FLAG (this, FLAG_FREED))
886	{	822	return;
887	LOG (llevDebug, "Free object called with non removed object\n");
888	dump_object (ob);
889	#ifdef MANY_CORES
890	abort ();
891	#endif
892	}
893		823
894	if (QUERY_FLAG (ob, FLAG_FRIENDLY))	824	if (QUERY_FLAG (this, FLAG_FRIENDLY))
895	{
896	LOG (llevMonster, "Warning: tried to free friendly object.\n");
897	remove_friendly_object (ob);	825	remove_friendly_object (this);
898	}
899		826
900	if (QUERY_FLAG (ob, FLAG_FREED))	827	if (!QUERY_FLAG (this, FLAG_REMOVED))
901	{	828	remove ();
902	dump_object (ob);	829
903	LOG (llevError, "Trying to free freed object.\n%s\n", errmsg);	830	SET_FLAG (this, FLAG_FREED);
904	return;	831
		832	if (more)
905	}	833	{
906		834	more->destroy (destroy_inventory);
907	if (ob->more != NULL)	835	more = 0;
908	{	836	}
909	free_object2 (ob->more, free_inventory);
910	ob->more = NULL;
911	}
912		837
913	if (ob->inv)	838	if (inv)
914	{	839	{
915	/* Only if the space blocks everything do we not process -	840	/* Only if the space blocks everything do we not process -
916	* if some form of movemnt is allowed, let objects	841	* if some form of movement is allowed, let objects
917	* drop on that space.	842	* drop on that space.
918	*/	843	*/
919	if (free_inventory || ob->map == NULL	844	if (destroy_inventory || !map || map->in_memory != MAP_IN_MEMORY || GET_MAP_MOVE_BLOCK (map, x, y) == MOVE_ALL)
920	|| ob->map->in_memory != MAP_IN_MEMORY	845	{
921	|| (GET_MAP_MOVE_BLOCK (ob->map, ob->x, ob->y) == MOVE_ALL))	846	object *op = inv;
922	{
923	op = ob->inv;
924		847
925	while (op != NULL)	848	while (op)
926	{	849	{
927	tmp = op->below;	850	object *tmp = op->below;
928	remove_ob (op);	851	op->destroy (destroy_inventory);
929	free_object2 (op, free_inventory);
930	op = tmp;	852	op = tmp;
931	}	853	}
932	}	854	}
933	else	855	else
934	{ /* Put objects in inventory onto this space */	856	{ /* Put objects in inventory onto this space */
935	op = ob->inv;	857	object *op = inv;
936		858
937	while (op != NULL)	859	while (op)
938	{	860	{
939	tmp = op->below;	861	object *tmp = op->below;
940	remove_ob (op);
941		862
		863	op->remove ();
		864
942	if (QUERY_FLAG (op, FLAG_STARTEQUIP)	865	if (QUERY_FLAG (op, FLAG_STARTEQUIP)
943	|| QUERY_FLAG (op, FLAG_NO_DROP) || op->type == RUNE	866	|| QUERY_FLAG (op, FLAG_NO_DROP) || op->type == RUNE || op->type == TRAP || QUERY_FLAG (op, FLAG_IS_A_TEMPLATE))
944	|| op->type == TRAP || QUERY_FLAG (op, FLAG_IS_A_TEMPLATE))	867	op->destroy ();
945	free_object (op);	868	else
946	else	869	{
947	{	870	op->x = x;
948	op->x = ob->x;	871	op->y = y;
949	op->y = ob->y;
950	insert_ob_in_map (op, ob->map, NULL, 0); /* Insert in same map as the envir */	872	insert_ob_in_map (op, map, 0, 0); /* Insert in same map as the envir */
951	}	873	}
952		874
953	op = tmp;	875	op = tmp;
		876	}
		877	}
954	}	878	}
955	}	879
		880	// hack to ensure that freed objects still have a valid map
		881	{
		882	static maptile *freed_map; // freed objects are moved here to avoid crashes
		883
		884	if (!freed_map)
		885	{
		886	freed_map = new maptile;
		887
		888	freed_map->name = "/internal/freed_objects_map";
		889	freed_map->width = 3;
		890	freed_map->height = 3;
		891
		892	freed_map->allocate ();
956	}	893	}
		894
		895	map = freed_map;
		896	x = 1;
		897	y = 1;
		898	}
		899
		900	// clear those pointers that likely might have circular references to us
		901	owner = 0;
		902	enemy = 0;
		903	attacked_by = 0;
		904
		905	// only relevant for players(?), but make sure of it anyways
		906	contr = 0;
957		907
958	/* Remove object from the active list */	908	/* Remove object from the active list */
959	ob->speed = 0;	909	speed = 0;
960	update_ob_speed (ob);	910	update_ob_speed (this);
961		911
962	SET_FLAG (ob, FLAG_FREED);	912	unlink ();
963	ob->count = 0;
964		913
965	/* Remove this object from the list of used objects */	914	mortals.push_back (this);
966	if (ob->prev == NULL)
967	{
968	objects = ob->next;
969
970	if (objects != NULL)
971	objects->prev = NULL;
972	}
973	else
974	{
975	ob->prev->next = ob->next;
976
977	if (ob->next != NULL)
978	ob->next->prev = ob->prev;
979	}
980
981	free_key_values (ob);
982
983	/* Now link it with the free_objects list: */
984	ob->prev = 0;
985	ob->next = 0;
986
987	delete ob;
988	}	915	}
989		916
990	/*	917	/*
991	* sub_weight() recursively (outwards) subtracts a number from the	918	* sub_weight() recursively (outwards) subtracts a number from the
992	* weight of an object (and what is carried by it's environment(s)).	919	* weight of an object (and what is carried by it's environment(s)).
993	*/	920	*/
994		921	void
995	void sub_weight (object *op, signed long weight) {	922	sub_weight (object *op, signed long weight)
		923	{
996	while (op != NULL) {	924	while (op != NULL)
		925	{
997	if (op->type == CONTAINER) {	926	if (op->type == CONTAINER)
998	weight=(signed long)(weight*(100-op->stats.Str)/100);	927	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
999	}	928
1000	op->carrying-=weight;	929	op->carrying -= weight;
1001	op = op->env;	930	op = op->env;
1002	}	931	}
1003	}	932	}
1004		933
1005	/* remove_ob(op):	934	/* op->remove ():
1006	* This function removes the object op from the linked list of objects	935	* This function removes the object op from the linked list of objects
1007	* which it is currently tied to. When this function is done, the	936	* which it is currently tied to. When this function is done, the
1008	* object will have no environment. If the object previously had an	937	* object will have no environment. If the object previously had an
1009	* environment, the x and y coordinates will be updated to	938	* environment, the x and y coordinates will be updated to
1010	* the previous environment.	939	* the previous environment.
1011	* Beware: This function is called from the editor as well!	940	* Beware: This function is called from the editor as well!
1012	*/	941	*/
1013		942	void
1014	void remove_ob(object *op) {	943	object::remove ()
		944	{
1015	object *tmp,*last=NULL;	945	object *tmp, *last = 0;
1016	object *otmp;	946	object *otmp;
1017	tag_t tag;	947
1018	int check_walk_off;	948	int check_walk_off;
1019	mapstruct *m;
1020	sint16 x,y;
1021
1022		949
1023	if(QUERY_FLAG(op,FLAG_REMOVED)) {	950	if (QUERY_FLAG (this, FLAG_REMOVED))
1024	dump_object(op);	951	return;
1025	LOG(llevError,"Trying to remove removed object.\n%s\n",errmsg);
1026		952
1027	/* Changed it to always dump core in this case. As has been learned
1028	* in the past, trying to recover from errors almost always
1029	* make things worse, and this is a real error here - something
1030	* that should not happen.
1031	* Yes, if this was a mission critical app, trying to do something
1032	* to recover may make sense, but that is because failure of the app
1033	* may have other disastrous problems. Cf runs out of a script
1034	* so is easily enough restarted without any real problems.
1035	* MSW 2001-07-01
1036	*/
1037	abort();
1038	}
1039	if(op->more!=NULL)
1040	remove_ob(op->more);
1041
1042	SET_FLAG(op, FLAG_REMOVED);	953	SET_FLAG (this, FLAG_REMOVED);
1043		954
		955	if (more)
		956	more->remove ();
		957
1044	/*	958	/*
1045	* In this case, the object to be removed is in someones	959	* In this case, the object to be removed is in someones
1046	* inventory.	960	* inventory.
1047	*/	961	*/
1048	if(op->env!=NULL) {	962	if (env)
		963	{
1049	if(op->nrof)	964	if (nrof)
1050	sub_weight(op->env, op->weight*op->nrof);	965	sub_weight (env, weight * nrof);
1051	else	966	else
1052	sub_weight(op->env, op->weight+op->carrying);	967	sub_weight (env, weight + carrying);
1053		968
1054	/* NO_FIX_PLAYER is set when a great many changes are being	969	/* NO_FIX_PLAYER is set when a great many changes are being
1055	* made to players inventory. If set, avoiding the call	970	* made to players inventory. If set, avoiding the call
1056	* to save cpu time.	971	* to save cpu time.
1057	*/	972	*/
1058	if ((otmp=is_player_inv(op->env))!=NULL && otmp->contr &&	973	if ((otmp = in_player ()) && otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1059	!QUERY_FLAG(otmp,FLAG_NO_FIX_PLAYER))	974	otmp->update_stats ();
1060	fix_player(otmp);
1061		975
1062	if(op->above!=NULL)	976	if (above != NULL)
1063	op->above->below=op->below;	977	above->below = below;
1064	else	978	else
1065	op->env->inv=op->below;	979	env->inv = below;
1066		980
1067	if(op->below!=NULL)	981	if (below != NULL)
1068	op->below->above=op->above;	982	below->above = above;
1069		983
1070	/* we set up values so that it could be inserted into	984	/* we set up values so that it could be inserted into
1071	* the map, but we don't actually do that - it is up	985	* the map, but we don't actually do that - it is up
1072	* to the caller to decide what we want to do.	986	* to the caller to decide what we want to do.
		987	*/
		988	x = env->x, y = env->y;
		989	map = env->map;
		990	above = 0, below = 0;
		991	env = 0;
		992	}
		993	else if (map)
		994	{
		995	/* Re did the following section of code - it looks like it had
		996	* lots of logic for things we no longer care about
		997	*/
		998
		999	/* link the object above us */
		1000	if (above)
		1001	above->below = below;
		1002	else
		1003	map->at (x, y).top = below; /* we were top, set new top */
		1004
		1005	/* Relink the object below us, if there is one */
		1006	if (below)
		1007	below->above = above;
		1008	else
		1009	{
		1010	/* Nothing below, which means we need to relink map object for this space
		1011	* use translated coordinates in case some oddness with map tiling is
		1012	* evident
1073	*/	1013	*/
1074	op->x=op->env->x,op->y=op->env->y;	1014	if (GET_MAP_OB (map, x, y) != this)
1075	op->map=op->env->map;	1015	{
1076	op->above=NULL,op->below=NULL;	1016	char *dump = dump_object (this);
1077	op->env=NULL;	1017	LOG (llevError,
		1018	"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);
		1019	free (dump);
		1020	dump = dump_object (GET_MAP_OB (map, x, y));
		1021	LOG (llevError, "%s\n", dump);
		1022	free (dump);
		1023	}
		1024
		1025	map->at (x, y).bottom = above; /* goes on above it. */
		1026	}
		1027
		1028	above = 0;
		1029	below = 0;
		1030
		1031	if (map->in_memory == MAP_SAVING)
1078	return;	1032	return;
1079	}
1080		1033
1081	/* If we get here, we are removing it from a map */
1082	if (op->map == NULL) return;
1083
1084	x = op->x;
1085	y = op->y;
1086	m = get_map_from_coord(op->map, &x, &y);
1087
1088	if (!m) {
1089	LOG(llevError,"remove_ob called when object was on map but appears to not be within valid coordinates? %s (%d,%d)\n",
1090	op->map->path, op->x, op->y);
1091	/* in old days, we used to set x and y to 0 and continue.
1092	* it seems if we get into this case, something is probablye
1093	* screwed up and should be fixed.
1094	*/
1095	abort();
1096	}
1097	if (op->map != m) {
1098	LOG(llevDebug,"remove_ob: Object not really on map it claimed to be on? %s != %s, %d,%d != %d,%d\n",
1099	op->map->path, m->path, op->x, op->y, x, y);
1100	}
1101
1102	/* Re did the following section of code - it looks like it had
1103	* lots of logic for things we no longer care about
1104	*/
1105
1106	/* link the object above us */
1107	if (op->above)
1108	op->above->below=op->below;
1109	else
1110	SET_MAP_TOP(m,x,y,op->below); /* we were top, set new top */
1111
1112	/* Relink the object below us, if there is one */
1113	if(op->below) {
1114	op->below->above=op->above;
1115	} else {
1116	/* Nothing below, which means we need to relink map object for this space
1117	* use translated coordinates in case some oddness with map tiling is
1118	* evident
1119	*/
1120	if(GET_MAP_OB(m,x,y)!=op) {
1121	dump_object(op);
1122	LOG(llevError,"remove_ob: GET_MAP_OB does not return object to be removed even though it appears to be on the bottom?\n%s\n", errmsg);
1123	dump_object(GET_MAP_OB(m,x,y));
1124	LOG(llevError,"%s\n",errmsg);
1125	}
1126	SET_MAP_OB(m,x,y,op->above); /* goes on above it. */
1127	}
1128	op->above=NULL;
1129	op->below=NULL;
1130
1131	if (op->map->in_memory == MAP_SAVING)
1132	return;
1133
1134	tag = op->count;
1135	check_walk_off = ! QUERY_FLAG (op, FLAG_NO_APPLY);	1034	check_walk_off = !QUERY_FLAG (this, FLAG_NO_APPLY);
		1035
1136	for(tmp=GET_MAP_OB(m,x,y);tmp!=NULL;tmp=tmp->above) {	1036	for (tmp = GET_MAP_OB (map, x, y); tmp; tmp = tmp->above)
		1037	{
1137	/* No point updating the players look faces if he is the object	1038	/* No point updating the players look faces if he is the object
1138	* being removed.	1039	* being removed.
1139	*/	1040	*/
1140		1041
1141	if(tmp->type==PLAYER && tmp!=op) {	1042	if (tmp->type == PLAYER && tmp != this)
		1043	{
1142	/* If a container that the player is currently using somehow gets	1044	/* If a container that the player is currently using somehow gets
1143	* removed (most likely destroyed), update the player view	1045	* removed (most likely destroyed), update the player view
1144	* appropriately.	1046	* appropriately.
1145	*/	1047	*/
1146	if (tmp->container==op) {	1048	if (tmp->container == this)
		1049	{
1147	CLEAR_FLAG(op, FLAG_APPLIED);	1050	CLEAR_FLAG (this, FLAG_APPLIED);
1148	tmp->container=NULL;	1051	tmp->container = 0;
		1052	}
		1053
		1054	tmp->contr->ns->floorbox_update ();
1149	}	1055	}
1150	tmp->contr->socket.update_look=1;	1056
1151	}
1152	/* See if player moving off should effect something */	1057	/* See if player moving off should effect something */
1153	if (check_walk_off && ((op->move_type & tmp->move_off) &&	1058	if (check_walk_off
		1059	&& ((move_type & tmp->move_off)
1154	(op->move_type & ~tmp->move_off & ~tmp->move_block)==0)) {	1060	&& (move_type & ~tmp->move_off & ~tmp->move_block) == 0))
1155		1061	{
1156	move_apply(tmp, op, NULL);	1062	move_apply (tmp, this, 0);
		1063
1157	if (was_destroyed (op, tag)) {	1064	if (destroyed ())
1158	LOG (llevError, "BUG: remove_ob(): name %s, archname %s destroyed "	1065	LOG (llevError, "BUG: remove_ob(): name %s, destroyed leaving object\n", tmp->debug_desc ());
1159	"leaving object\n", &tmp->name, &tmp->arch->name);
1160	}	1066	}
1161	}
1162		1067
1163	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */	1068	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */
1164		1069
1165	if(tmp->above == tmp)	1070	if (tmp->above == tmp)
1166	tmp->above = NULL;	1071	tmp->above = 0;
		1072
1167	last=tmp;	1073	last = tmp;
1168	}	1074	}
		1075
1169	/* last == NULL of there are no objects on this space */	1076	/* last == NULL of there are no objects on this space */
1170	if (last==NULL) {	1077	if (!last)
1171	/* set P_NEED_UPDATE, otherwise update_position will complain. In theory,	1078	map->at (x, y).flags_ = P_NEED_UPDATE;
1172	* we could preserve the flags (GET_MAP_FLAGS), but update_position figures
1173	* those out anyways, and if there are any flags set right now, they won't
1174	* be correct anyways.
1175	*/
1176	SET_MAP_FLAGS(op->map, op->x, op->y, P_NEED_UPDATE);
1177	update_position(op->map, op->x, op->y);
1178	}
1179	else	1079	else
1180	update_object(last, UP_OBJ_REMOVE);	1080	update_object (last, UP_OBJ_REMOVE);
1181		1081
1182	if(QUERY_FLAG(op,FLAG_BLOCKSVIEW)|| (op->glow_radius != 0))	1082	if (QUERY_FLAG (this, FLAG_BLOCKSVIEW) || glow_radius)
1183	update_all_los(op->map, op->x, op->y);	1083	update_all_los (map, x, y);
1184		1084	}
1185	}	1085	}
1186		1086
1187	/*	1087	/*
1188	* merge_ob(op,top):	1088	* merge_ob(op,top):
1189	*	1089	*
1190	* This function goes through all objects below and including top, and	1090	* This function goes through all objects below and including top, and
1191	* merges op to the first matching object.	1091	* merges op to the first matching object.
1192	* If top is NULL, it is calculated.	1092	* If top is NULL, it is calculated.
1193	* Returns pointer to object if it succeded in the merge, otherwise NULL	1093	* Returns pointer to object if it succeded in the merge, otherwise NULL
1194	*/	1094	*/
1195		1095	object *
1196	object *merge_ob(object *op, object *top) {	1096	merge_ob (object *op, object *top)
		1097	{
1197	if(!op->nrof)	1098	if (!op->nrof)
1198	return 0;	1099	return 0;
		1100
1199	if(top==NULL)	1101	if (top == NULL)
1200	for(top=op;top!=NULL&&top->above!=NULL;top=top->above);	1102	for (top = op; top != NULL && top->above != NULL; top = top->above);
		1103
1201	for(;top!=NULL;top=top->below) {	1104	for (; top != NULL; top = top->below)
		1105	{
1202	if(top==op)	1106	if (top == op)
1203	continue;	1107	continue;
1204	if (CAN_MERGE(op,top))	1108
1205	{	1109	if (object::can_merge (op, top))
		1110	{
1206	top->nrof+=op->nrof;	1111	top->nrof += op->nrof;
		1112
1207	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/	1113	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/
1208	op->weight = 0; /* Don't want any adjustements now */	1114	op->weight = 0; /* Don't want any adjustements now */
1209	remove_ob(op);	1115	op->destroy ();
1210	free_object(op);
1211	return top;	1116	return top;
1212	}	1117	}
1213	}	1118	}
		1119
1214	return NULL;	1120	return 0;
1215	}	1121	}
1216		1122
1217	/*	1123	/*
1218	* same as insert_ob_in_map except it handle separate coordinates and do a clean	1124	* same as insert_ob_in_map except it handle separate coordinates and do a clean
1219	* job preparing multi-part monsters	1125	* job preparing multi-part monsters
1220	*/	1126	*/
		1127	object *
1221	object *insert_ob_in_map_at(object *op, mapstruct *m, object *originator, int flag, int x, int y){	1128	insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)
		1129	{
1222	object* tmp;	1130	object *tmp;
		1131
1223	if (op->head)	1132	if (op->head)
1224	op=op->head;	1133	op = op->head;
		1134
1225	for (tmp=op;tmp;tmp=tmp->more){	1135	for (tmp = op; tmp; tmp = tmp->more)
		1136	{
1226	tmp->x=x+tmp->arch->clone.x;	1137	tmp->x = x + tmp->arch->clone.x;
1227	tmp->y=y+tmp->arch->clone.y;	1138	tmp->y = y + tmp->arch->clone.y;
1228	}	1139	}
		1140
1229	return insert_ob_in_map (op, m, originator, flag);	1141	return insert_ob_in_map (op, m, originator, flag);
1230	}	1142	}
1231		1143
1232	/*	1144	/*
1233	* insert_ob_in_map (op, map, originator, flag):	1145	* insert_ob_in_map (op, map, originator, flag):
1234	* This function inserts the object in the two-way linked list	1146	* This function inserts the object in the two-way linked list
…		…
1248	* new object if 'op' was merged with other object	1160	* new object if 'op' was merged with other object
1249	* NULL if 'op' was destroyed	1161	* NULL if 'op' was destroyed
1250	* just 'op' otherwise	1162	* just 'op' otherwise
1251	*/	1163	*/
1252		1164
		1165	object *
1253	object *insert_ob_in_map (object *op, mapstruct *m, object *originator, int flag)	1166	insert_ob_in_map (object *op, maptile *m, object *originator, int flag)
1254	{	1167	{
1255	object *tmp, *top, *floor=NULL;	1168	object *tmp, *top, *floor = NULL;
1256	sint16 x,y;	1169	sint16 x, y;
1257		1170
1258	if (QUERY_FLAG (op, FLAG_FREED)) {	1171	if (QUERY_FLAG (op, FLAG_FREED))
		1172	{
1259	LOG (llevError, "Trying to insert freed object!\n");	1173	LOG (llevError, "Trying to insert freed object!\n");
		1174	return NULL;
		1175	}
		1176
		1177	if (m == NULL)
		1178	{
		1179	char *dump = dump_object (op);
		1180	LOG (llevError, "Trying to insert in null-map!\n%s\n", dump);
		1181	free (dump);
		1182	return op;
		1183	}
		1184
		1185	if (out_of_map (m, op->x, op->y))
		1186	{
		1187	char *dump = dump_object (op);
		1188	LOG (llevError, "Trying to insert object outside the map.\n%s\n", dump);
		1189	#ifdef MANY_CORES
		1190	/* Better to catch this here, as otherwise the next use of this object
		1191	* is likely to cause a crash. Better to find out where it is getting
		1192	* improperly inserted.
		1193	*/
		1194	abort ();
		1195	#endif
		1196	free (dump);
		1197	return op;
		1198	}
		1199
		1200	if (!QUERY_FLAG (op, FLAG_REMOVED))
		1201	{
		1202	char *dump = dump_object (op);
		1203	LOG (llevError, "Trying to insert (map) inserted object.\n%s\n", dump);
		1204	free (dump);
		1205	return op;
		1206	}
		1207
		1208	if (op->more != NULL)
		1209	{
		1210	/* The part may be on a different map. */
		1211
		1212	object *more = op->more;
		1213
		1214	/* We really need the caller to normalize coordinates - if
		1215	* we set the map, that doesn't work if the location is within
		1216	* a map and this is straddling an edge. So only if coordinate
		1217	* is clear wrong do we normalize it.
		1218	*/
		1219	if (OUT_OF_REAL_MAP (more->map, more->x, more->y))
		1220	more->map = get_map_from_coord (m, &more->x, &more->y);
		1221	else if (!more->map)
		1222	{
		1223	/* For backwards compatibility - when not dealing with tiled maps,
		1224	* more->map should always point to the parent.
		1225	*/
		1226	more->map = m;
		1227	}
		1228
		1229	if (insert_ob_in_map (more, more->map, originator, flag) == NULL)
		1230	{
		1231	if (!op->head)
		1232	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");
		1233
		1234	return NULL;
		1235	}
		1236	}
		1237
		1238	CLEAR_FLAG (op, FLAG_REMOVED);
		1239
		1240	/* Ideally, the caller figures this out. However, it complicates a lot
		1241	* of areas of callers (eg, anything that uses find_free_spot would now
		1242	* need extra work
		1243	*/
		1244	op->map = get_map_from_coord (m, &op->x, &op->y);
		1245	x = op->x;
		1246	y = op->y;
		1247
		1248	/* this has to be done after we translate the coordinates.
		1249	*/
		1250	if (op->nrof && !(flag & INS_NO_MERGE))
		1251	for (tmp = GET_MAP_OB (op->map, x, y); tmp != NULL; tmp = tmp->above)
		1252	if (object::can_merge (op, tmp))
		1253	{
		1254	op->nrof += tmp->nrof;
		1255	tmp->destroy ();
		1256	}
		1257
		1258	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */
		1259	CLEAR_FLAG (op, FLAG_INV_LOCKED);
		1260
		1261	if (!QUERY_FLAG (op, FLAG_ALIVE))
		1262	CLEAR_FLAG (op, FLAG_NO_STEAL);
		1263
		1264	if (flag & INS_BELOW_ORIGINATOR)
		1265	{
		1266	if (originator->map != op->map || originator->x != op->x || originator->y != op->y)
		1267	{
		1268	LOG (llevError, "insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");
		1269	abort ();
		1270	}
		1271
		1272	op->above = originator;
		1273	op->below = originator->below;
		1274
		1275	if (op->below)
		1276	op->below->above = op;
		1277	else
		1278	op->ms ().bottom = op;
		1279
		1280	/* since *below* originator, no need to update top */
		1281	originator->below = op;
		1282	}
		1283	else
		1284	{
		1285	/* If there are other objects, then */
		1286	if ((!(flag & INS_MAP_LOAD)) && ((top = GET_MAP_OB (op->map, op->x, op->y)) != NULL))
		1287	{
		1288	object *last = NULL;
		1289
		1290	/*
		1291	* If there are multiple objects on this space, we do some trickier handling.
		1292	* We've already dealt with merging if appropriate.
		1293	* Generally, we want to put the new object on top. But if
		1294	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last
		1295	* floor, we want to insert above that and no further.
		1296	* Also, if there are spell objects on this space, we stop processing
		1297	* once we get to them. This reduces the need to traverse over all of
		1298	* them when adding another one - this saves quite a bit of cpu time
		1299	* when lots of spells are cast in one area. Currently, it is presumed
		1300	* that flying non pickable objects are spell objects.
		1301	*/
		1302
		1303	while (top != NULL)
		1304	{
		1305	if (QUERY_FLAG (top, FLAG_IS_FLOOR) || QUERY_FLAG (top, FLAG_OVERLAY_FLOOR))
		1306	floor = top;
		1307
		1308	if (QUERY_FLAG (top, FLAG_NO_PICK) && (top->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (top, FLAG_IS_FLOOR))
		1309	{
		1310	/* We insert above top, so we want this object below this */
		1311	top = top->below;
		1312	break;
		1313	}
		1314
		1315	last = top;
		1316	top = top->above;
		1317	}
		1318
		1319	/* Don't want top to be NULL, so set it to the last valid object */
		1320	top = last;
		1321
		1322	/* We let update_position deal with figuring out what the space
		1323	* looks like instead of lots of conditions here.
		1324	* makes things faster, and effectively the same result.
		1325	*/
		1326
		1327	/* Have object 'fall below' other objects that block view.
		1328	* Unless those objects are exits, type 66
		1329	* If INS_ON_TOP is used, don't do this processing
		1330	* Need to find the object that in fact blocks view, otherwise
		1331	* stacking is a bit odd.
		1332	*/
		1333	if (!(flag & INS_ON_TOP) &&
		1334	(get_map_flags (op->map, 0, op->x, op->y, 0, 0) & P_BLOCKSVIEW) && (op->face && !op->face->visibility))
		1335	{
		1336	for (last = top; last != floor; last = last->below)
		1337	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))
		1338	break;
		1339	/* Check to see if we found the object that blocks view,
		1340	* and make sure we have a below pointer for it so that
		1341	* we can get inserted below this one, which requires we
		1342	* set top to the object below us.
		1343	*/
		1344	if (last && last->below && last != floor)
		1345	top = last->below;
		1346	}
		1347	} /* If objects on this space */
		1348
		1349	if (flag & INS_MAP_LOAD)
		1350	top = GET_MAP_TOP (op->map, op->x, op->y);
		1351
		1352	if (flag & INS_ABOVE_FLOOR_ONLY)
		1353	top = floor;
		1354
		1355	/* Top is the object that our object (op) is going to get inserted above.
		1356	*/
		1357
		1358	/* First object on this space */
		1359	if (!top)
		1360	{
		1361	op->above = GET_MAP_OB (op->map, op->x, op->y);
		1362
		1363	if (op->above)
		1364	op->above->below = op;
		1365
		1366	op->below = NULL;
		1367	op->ms ().bottom = op;
		1368	}
		1369	else
		1370	{ /* get inserted into the stack above top */
		1371	op->above = top->above;
		1372
		1373	if (op->above)
		1374	op->above->below = op;
		1375
		1376	op->below = top;
		1377	top->above = op;
		1378	}
		1379
		1380	if (op->above == NULL)
		1381	op->ms ().top = op;
		1382	} /* else not INS_BELOW_ORIGINATOR */
		1383
		1384	if (op->type == PLAYER)
		1385	op->contr->do_los = 1;
		1386
		1387	/* If we have a floor, we know the player, if any, will be above
		1388	* it, so save a few ticks and start from there.
		1389	*/
		1390	if (!(flag & INS_MAP_LOAD))
		1391	if (object *pl = op->ms ().player ())
		1392	pl->contr->ns->floorbox_update ();
		1393
		1394	/* If this object glows, it may affect lighting conditions that are
		1395	* visible to others on this map. But update_all_los is really
		1396	* an inefficient way to do this, as it means los for all players
		1397	* on the map will get recalculated. The players could very well
		1398	* be far away from this change and not affected in any way -
		1399	* this should get redone to only look for players within range,
		1400	* or just updating the P_NEED_UPDATE for spaces within this area
		1401	* of effect may be sufficient.
		1402	*/
		1403	if (MAP_DARKNESS (op->map) && (op->glow_radius != 0))
		1404	update_all_los (op->map, op->x, op->y);
		1405
		1406	/* updates flags (blocked, alive, no magic, etc) for this map space */
		1407	update_object (op, UP_OBJ_INSERT);
		1408
		1409	/* Don't know if moving this to the end will break anything. However,
		1410	* we want to have floorbox_update called before calling this.
		1411	*
		1412	* check_move_on() must be after this because code called from
		1413	* check_move_on() depends on correct map flags (so functions like
		1414	* blocked() and wall() work properly), and these flags are updated by
		1415	* update_object().
		1416	*/
		1417
		1418	/* if this is not the head or flag has been passed, don't check walk on status */
		1419	if (!(flag & INS_NO_WALK_ON) && !op->head)
		1420	{
		1421	if (check_move_on (op, originator))
1260	return NULL;	1422	return NULL;
1261	}
1262	if(m==NULL) {
1263	dump_object(op);
1264	LOG(llevError,"Trying to insert in null-map!\n%s\n",errmsg);
1265	return op;
1266	}
1267	if(out_of_map(m,op->x,op->y)) {
1268	dump_object(op);
1269	LOG(llevError,"Trying to insert object outside the map.\n%s\n", errmsg);
1270	#ifdef MANY_CORES
1271	/* Better to catch this here, as otherwise the next use of this object
1272	* is likely to cause a crash. Better to find out where it is getting
1273	* improperly inserted.
1274	*/
1275	abort();
1276	#endif
1277	return op;
1278	}
1279	if(!QUERY_FLAG(op,FLAG_REMOVED)) {
1280	dump_object(op);
1281	LOG(llevError,"Trying to insert (map) inserted object.\n%s\n", errmsg);
1282	return op;
1283	}
1284	if(op->more!=NULL) {
1285	/* The part may be on a different map. */
1286		1423
1287	object *more = op->more;
1288
1289	/* We really need the caller to normalize coordinates - if
1290	* we set the map, that doesn't work if the location is within
1291	* a map and this is straddling an edge. So only if coordinate
1292	* is clear wrong do we normalize it.
1293	*/
1294	if (OUT_OF_REAL_MAP(more->map, more->x, more->y)) {
1295	more->map = get_map_from_coord(m, &more->x, &more->y);
1296	} else if (!more->map) {
1297	/* For backwards compatibility - when not dealing with tiled maps,
1298	* more->map should always point to the parent.
1299	*/
1300	more->map = m;
1301	}
1302
1303	if (insert_ob_in_map(more, more->map, originator, flag) == NULL) {
1304	if ( ! op->head)
1305	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");
1306	return NULL;
1307	}
1308	}
1309	CLEAR_FLAG(op,FLAG_REMOVED);
1310
1311	/* Ideally, the caller figures this out. However, it complicates a lot
1312	* of areas of callers (eg, anything that uses find_free_spot would now
1313	* need extra work
1314	*/
1315	op->map=get_map_from_coord(m, &op->x, &op->y);
1316	x = op->x;
1317	y = op->y;
1318
1319	/* this has to be done after we translate the coordinates.
1320	*/
1321	if(op->nrof && !(flag & INS_NO_MERGE)) {
1322	for(tmp=GET_MAP_OB(op->map,x,y);tmp!=NULL;tmp=tmp->above)
1323	if (CAN_MERGE(op,tmp)) {
1324	op->nrof+=tmp->nrof;
1325	remove_ob(tmp);
1326	free_object(tmp);
1327	}
1328	}
1329
1330	CLEAR_FLAG(op,FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */
1331	CLEAR_FLAG(op, FLAG_INV_LOCKED);
1332	if (!QUERY_FLAG(op, FLAG_ALIVE))
1333	CLEAR_FLAG(op, FLAG_NO_STEAL);
1334
1335	if (flag & INS_BELOW_ORIGINATOR) {
1336	if (originator->map != op->map || originator->x != op->x ||
1337	originator->y != op->y) {
1338	LOG(llevError,"insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");
1339	abort();
1340	}
1341	op->above = originator;
1342	op->below = originator->below;
1343	if (op->below) op->below->above = op;
1344	else SET_MAP_OB(op->map, op->x, op->y, op);
1345	/* since *below* originator, no need to update top */
1346	originator->below = op;
1347	} else {
1348	/* If there are other objects, then */
1349	if((! (flag & INS_MAP_LOAD)) && ((top=GET_MAP_OB(op->map,op->x,op->y))!=NULL)) {
1350	object *last=NULL;
1351	/*
1352	* If there are multiple objects on this space, we do some trickier handling.
1353	* We've already dealt with merging if appropriate.
1354	* Generally, we want to put the new object on top. But if
1355	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last
1356	* floor, we want to insert above that and no further.
1357	* Also, if there are spell objects on this space, we stop processing
1358	* once we get to them. This reduces the need to traverse over all of
1359	* them when adding another one - this saves quite a bit of cpu time
1360	* when lots of spells are cast in one area. Currently, it is presumed
1361	* that flying non pickable objects are spell objects.
1362	*/
1363
1364	while (top != NULL) {
1365	if (QUERY_FLAG(top, FLAG_IS_FLOOR) ||
1366	QUERY_FLAG(top, FLAG_OVERLAY_FLOOR)) floor = top;
1367	if (QUERY_FLAG(top, FLAG_NO_PICK)
1368	&& (top->move_type & (MOVE_FLY_LOW |MOVE_FLY_HIGH))
1369	&& !QUERY_FLAG(top, FLAG_IS_FLOOR))
1370	{
1371	/* We insert above top, so we want this object below this */
1372	top=top->below;
1373	break;
1374	}
1375	last = top;
1376	top = top->above;
1377	}
1378	/* Don't want top to be NULL, so set it to the last valid object */
1379	top = last;
1380
1381	/* We let update_position deal with figuring out what the space
1382	* looks like instead of lots of conditions here.
1383	* makes things faster, and effectively the same result.
1384	*/
1385
1386	/* Have object 'fall below' other objects that block view.
1387	* Unless those objects are exits, type 66
1388	* If INS_ON_TOP is used, don't do this processing
1389	* Need to find the object that in fact blocks view, otherwise
1390	* stacking is a bit odd.
1391	*/
1392	if (!(flag & INS_ON_TOP) &&
1393	(get_map_flags(op->map, NULL, op->x, op->y, NULL, NULL) & P_BLOCKSVIEW) &&
1394	(op->face && !op->face->visibility)) {
1395	for (last=top; last != floor; last=last->below)
1396	if (QUERY_FLAG(last, FLAG_BLOCKSVIEW)&&(last->type != EXIT)) break;
1397	/* Check to see if we found the object that blocks view,
1398	* and make sure we have a below pointer for it so that
1399	* we can get inserted below this one, which requires we
1400	* set top to the object below us.
1401	*/
1402	if (last && last->below && last != floor) top=last->below;
1403	}
1404	} /* If objects on this space */
1405	if (flag & INS_MAP_LOAD)
1406	top = GET_MAP_TOP(op->map,op->x,op->y);
1407	if (flag & INS_ABOVE_FLOOR_ONLY) top = floor;
1408
1409	/* Top is the object that our object (op) is going to get inserted above.
1410	*/
1411
1412	/* First object on this space */
1413	if (!top) {
1414	op->above = GET_MAP_OB(op->map, op->x, op->y);
1415	if (op->above) op->above->below = op;
1416	op->below = NULL;
1417	SET_MAP_OB(op->map, op->x, op->y, op);
1418	} else { /* get inserted into the stack above top */
1419	op->above = top->above;
1420	if (op->above) op->above->below = op;
1421	op->below = top;
1422	top->above = op;
1423	}
1424	if (op->above==NULL)
1425	SET_MAP_TOP(op->map,op->x, op->y, op);
1426	} /* else not INS_BELOW_ORIGINATOR */
1427
1428	if(op->type==PLAYER)
1429	op->contr->do_los=1;
1430
1431	/* If we have a floor, we know the player, if any, will be above
1432	* it, so save a few ticks and start from there.
1433	*/
1434	if (!(flag & INS_MAP_LOAD))
1435	for(tmp=floor?floor:GET_MAP_OB(op->map,op->x,op->y);tmp!=NULL;tmp=tmp->above) {
1436	if (tmp->type == PLAYER)
1437	tmp->contr->socket.update_look=1;
1438	}
1439
1440	/* If this object glows, it may affect lighting conditions that are
1441	* visible to others on this map. But update_all_los is really
1442	* an inefficient way to do this, as it means los for all players
1443	* on the map will get recalculated. The players could very well
1444	* be far away from this change and not affected in any way -
1445	* this should get redone to only look for players within range,
1446	* or just updating the P_NEED_UPDATE for spaces within this area
1447	* of effect may be sufficient.
1448	*/
1449	if(MAP_DARKNESS(op->map) && (op->glow_radius != 0))
1450	update_all_los(op->map, op->x, op->y);
1451
1452
1453	/* updates flags (blocked, alive, no magic, etc) for this map space */
1454	update_object(op,UP_OBJ_INSERT);
1455
1456
1457	/* Don't know if moving this to the end will break anything. However,
1458	* we want to have update_look set above before calling this.
1459	*
1460	* check_move_on() must be after this because code called from
1461	* check_move_on() depends on correct map flags (so functions like
1462	* blocked() and wall() work properly), and these flags are updated by
1463	* update_object().
1464	*/
1465
1466	/* if this is not the head or flag has been passed, don't check walk on status */
1467
1468	if (!(flag & INS_NO_WALK_ON) && !op->head) {
1469	if (check_move_on(op, originator))
1470	return NULL;
1471
1472	/* If we are a multi part object, lets work our way through the check	1424	/* If we are a multi part object, lets work our way through the check
1473	* walk on's.	1425	* walk on's.
1474	*/	1426	*/
1475	for (tmp=op->more; tmp!=NULL; tmp=tmp->more)	1427	for (tmp = op->more; tmp != NULL; tmp = tmp->more)
1476	if (check_move_on (tmp, originator))	1428	if (check_move_on (tmp, originator))
1477	return NULL;	1429	return NULL;
1478	}	1430	}
		1431
1479	return op;	1432	return op;
1480	}	1433	}
1481		1434
1482	/* this function inserts an object in the map, but if it	1435	/* this function inserts an object in the map, but if it
1483	* finds an object of its own type, it'll remove that one first.	1436	* finds an object of its own type, it'll remove that one first.
1484	* op is the object to insert it under: supplies x and the map.	1437	* op is the object to insert it under: supplies x and the map.
1485	*/	1438	*/
		1439	void
1486	void replace_insert_ob_in_map(const char *arch_string, object *op) {	1440	replace_insert_ob_in_map (const char *arch_string, object *op)
1487	object *tmp;	1441	{
1488	object *tmp1;	1442	object *tmp, *tmp1;
1489		1443
1490	/* first search for itself and remove any old instances */	1444	/* first search for itself and remove any old instances */
1491		1445
1492	for(tmp=GET_MAP_OB(op->map,op->x,op->y); tmp!=NULL; tmp=tmp->above) {	1446	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)
1493	if(!strcmp(tmp->arch->name,arch_string)) /* same archetype */ {	1447	if (!strcmp (tmp->arch->name, arch_string)) /* same archetype */
1494	remove_ob(tmp);	1448	tmp->destroy ();
1495	free_object(tmp);
1496	}
1497	}
1498		1449
1499	tmp1=arch_to_object(find_archetype(arch_string));	1450	tmp1 = arch_to_object (archetype::find (arch_string));
1500		1451
1501		1452	tmp1->x = op->x;
1502	tmp1->x = op->x; tmp1->y = op->y;	1453	tmp1->y = op->y;
1503	insert_ob_in_map(tmp1,op->map,op,0);	1454	insert_ob_in_map (tmp1, op->map, op, 0);
1504	}	1455	}
1505		1456
1506	/*	1457	/*
1507	* get_split_ob(ob,nr) splits up ob into two parts. The part which	1458	* get_split_ob(ob,nr) splits up ob into two parts. The part which
1508	* is returned contains nr objects, and the remaining parts contains	1459	* is returned contains nr objects, and the remaining parts contains
1509	* the rest (or is removed and freed if that number is 0).	1460	* the rest (or is removed and freed if that number is 0).
1510	* On failure, NULL is returned, and the reason put into the	1461	* On failure, NULL is returned, and the reason put into the
1511	* global static errmsg array.	1462	* global static errmsg array.
1512	*/	1463	*/
1513		1464
		1465	object *
1514	object *get_split_ob(object *orig_ob, uint32 nr) {	1466	get_split_ob (object *orig_ob, uint32 nr)
		1467	{
1515	object *newob;	1468	object *newob;
1516	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);	1469	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);
1517		1470
1518	if(orig_ob->nrof<nr) {	1471	if (orig_ob->nrof < nr)
1519	sprintf(errmsg,"There are only %d %ss.",	1472	{
1520	orig_ob->nrof?orig_ob->nrof:1, &orig_ob->name);	1473	sprintf (errmsg, "There are only %d %ss.", orig_ob->nrof ? orig_ob->nrof : 1, &orig_ob->name);
1521	return NULL;	1474	return NULL;
1522	}	1475	}
		1476
1523	newob = object_create_clone(orig_ob);	1477	newob = object_create_clone (orig_ob);
		1478
1524	if((orig_ob->nrof-=nr)<1) {	1479	if ((orig_ob->nrof -= nr) < 1)
1525	if ( ! is_removed)	1480	orig_ob->destroy (1);
1526	remove_ob(orig_ob);
1527	free_object2(orig_ob, 1);
1528	}
1529	else if ( ! is_removed) {	1481	else if (!is_removed)
		1482	{
1530	if(orig_ob->env!=NULL)	1483	if (orig_ob->env != NULL)
1531	sub_weight (orig_ob->env,orig_ob->weight*nr);	1484	sub_weight (orig_ob->env, orig_ob->weight * nr);
1532	if (orig_ob->env == NULL && orig_ob->map->in_memory!=MAP_IN_MEMORY) {	1485	if (orig_ob->env == NULL && orig_ob->map->in_memory != MAP_IN_MEMORY)
		1486	{
1533	strcpy(errmsg, "Tried to split object whose map is not in memory.");	1487	strcpy (errmsg, "Tried to split object whose map is not in memory.");
1534	LOG(llevDebug,
1535	"Error, Tried to split object whose map is not in memory.\n");	1488	LOG (llevDebug, "Error, Tried to split object whose map is not in memory.\n");
1536	return NULL;	1489	return NULL;
1537	}	1490	}
1538	}	1491	}
		1492
1539	newob->nrof=nr;	1493	newob->nrof = nr;
1540		1494
1541	return newob;	1495	return newob;
1542	}	1496	}
1543		1497
1544	/*	1498	/*
1545	* decrease_ob_nr(object, number) decreases a specified number from	1499	* decrease_ob_nr(object, number) decreases a specified number from
1546	* the amount of an object. If the amount reaches 0, the object	1500	* the amount of an object. If the amount reaches 0, the object
1547	* is subsequently removed and freed.	1501	* is subsequently removed and freed.
1548	*	1502	*
1549	* Return value: 'op' if something is left, NULL if the amount reached 0	1503	* Return value: 'op' if something is left, NULL if the amount reached 0
1550	*/	1504	*/
1551		1505
		1506	object *
1552	object *decrease_ob_nr (object *op, uint32 i)	1507	decrease_ob_nr (object *op, uint32 i)
1553	{	1508	{
1554	object *tmp;	1509	object *tmp;
1555	player *pl;	1510	player *pl;
1556		1511
1557	if (i == 0) /* objects with op->nrof require this check */	1512	if (i == 0) /* objects with op->nrof require this check */
1558	return op;	1513	return op;
1559		1514
1560	if (i > op->nrof)	1515	if (i > op->nrof)
1561	i = op->nrof;	1516	i = op->nrof;
1562		1517
1563	if (QUERY_FLAG (op, FLAG_REMOVED))	1518	if (QUERY_FLAG (op, FLAG_REMOVED))
		1519	op->nrof -= i;
		1520	else if (op->env)
		1521	{
		1522	/* is this object in the players inventory, or sub container
		1523	* therein?
		1524	*/
		1525	tmp = op->in_player ();
		1526	/* nope. Is this a container the player has opened?
		1527	* If so, set tmp to that player.
		1528	* IMO, searching through all the players will mostly
		1529	* likely be quicker than following op->env to the map,
		1530	* and then searching the map for a player.
		1531	*/
		1532	if (!tmp)
		1533	{
		1534	for (pl = first_player; pl; pl = pl->next)
		1535	if (pl->ob->container == op->env)
		1536	{
		1537	tmp = pl->ob;
		1538	break;
		1539	}
		1540	}
		1541
		1542	if (i < op->nrof)
		1543	{
		1544	sub_weight (op->env, op->weight * i);
		1545	op->nrof -= i;
		1546	if (tmp)
		1547	esrv_send_item (tmp, op);
		1548	}
		1549	else
		1550	{
		1551	op->remove ();
		1552	op->nrof = 0;
		1553	if (tmp)
		1554	esrv_del_item (tmp->contr, op->count);
		1555	}
1564	{	1556	}
		1557	else
		1558	{
		1559	object *above = op->above;
		1560
		1561	if (i < op->nrof)
1565	op->nrof -= i;	1562	op->nrof -= i;
1566	}	1563	else
1567	else if (op->env != NULL)
1568	{
1569	/* is this object in the players inventory, or sub container
1570	* therein?
1571	*/
1572	tmp = is_player_inv (op->env);
1573	/* nope. Is this a container the player has opened?
1574	* If so, set tmp to that player.
1575	* IMO, searching through all the players will mostly
1576	* likely be quicker than following op->env to the map,
1577	* and then searching the map for a player.
1578	*/
1579	if (!tmp) {
1580	for (pl=first_player; pl; pl=pl->next)
1581	if (pl->ob->container == op->env) break;
1582	if (pl) tmp=pl->ob;
1583	else tmp=NULL;
1584	}	1564	{
1585
1586	if (i < op->nrof) {
1587	sub_weight (op->env, op->weight * i);
1588	op->nrof -= i;
1589	if (tmp) {
1590	esrv_send_item(tmp, op);
1591	}
1592	} else {
1593	remove_ob (op);	1565	op->remove ();
1594	op->nrof = 0;	1566	op->nrof = 0;
1595	if (tmp) {
1596	esrv_del_item(tmp->contr, op->count);
1597	}	1567	}
1598	}
1599	}
1600	else
1601	{
1602	object *above = op->above;
1603		1568
1604	if (i < op->nrof) {
1605	op->nrof -= i;
1606	} else {
1607	remove_ob (op);
1608	op->nrof = 0;
1609	}
1610	/* Since we just removed op, op->above is null */	1569	/* Since we just removed op, op->above is null */
1611	for (tmp = above; tmp != NULL; tmp = tmp->above)	1570	for (tmp = above; tmp; tmp = tmp->above)
1612	if (tmp->type == PLAYER) {	1571	if (tmp->type == PLAYER)
		1572	{
1613	if (op->nrof)	1573	if (op->nrof)
1614	esrv_send_item(tmp, op);	1574	esrv_send_item (tmp, op);
1615	else	1575	else
1616	esrv_del_item(tmp->contr, op->count);	1576	esrv_del_item (tmp->contr, op->count);
1617	}	1577	}
1618	}	1578	}
1619		1579
1620	if (op->nrof) {	1580	if (op->nrof)
1621	return op;	1581	return op;
1622	} else {	1582	else
1623	free_object (op);	1583	{
		1584	op->destroy ();
1624	return NULL;	1585	return 0;
1625	}	1586	}
1626	}	1587	}
1627		1588
1628	/*	1589	/*
1629	* add_weight(object, weight) adds the specified weight to an object,	1590	* add_weight(object, weight) adds the specified weight to an object,
1630	* and also updates how much the environment(s) is/are carrying.	1591	* and also updates how much the environment(s) is/are carrying.
1631	*/	1592	*/
1632		1593
		1594	void
1633	void add_weight (object *op, signed long weight) {	1595	add_weight (object *op, signed long weight)
		1596	{
1634	while (op!=NULL) {	1597	while (op != NULL)
		1598	{
1635	if (op->type == CONTAINER) {	1599	if (op->type == CONTAINER)
1636	weight=(signed long)(weight*(100-op->stats.Str)/100);	1600	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1637	}	1601
1638	op->carrying+=weight;	1602	op->carrying += weight;
1639	op=op->env;	1603	op = op->env;
1640	}	1604	}
1641	}	1605	}
1642		1606
		1607	object *
		1608	insert_ob_in_ob (object *op, object *where)
		1609	{
		1610	if (!where)
		1611	{
		1612	char *dump = dump_object (op);
		1613	LOG (llevError, "Trying to put object in NULL.\n%s\n", dump);
		1614	free (dump);
		1615	return op;
		1616	}
		1617
		1618	if (where->head)
		1619	{
		1620	LOG (llevDebug, "Warning: Tried to insert object into wrong part of multipart object.\n");
		1621	where = where->head;
		1622	}
		1623
		1624	return where->insert (op);
		1625	}
		1626
1643	/*	1627	/*
1644	* insert_ob_in_ob(op,environment):	1628	* env->insert (op)
1645	* This function inserts the object op in the linked list	1629	* This function inserts the object op in the linked list
1646	* inside the object environment.	1630	* inside the object environment.
1647	*	1631	*
1648	* Eneq(@csd.uu.se): Altered insert_ob_in_ob to make things picked up enter
1649	* the inventory at the last position or next to other objects of the same
1650	* type.
1651	* Frank: Now sorted by type, archetype and magic!
1652	*
1653	* The function returns now pointer to inserted item, and return value can	1632	* The function returns now pointer to inserted item, and return value can
1654	* be != op, if items are merged. -Tero	1633	* be != op, if items are merged. -Tero
1655	*/	1634	*/
1656		1635
1657	object *insert_ob_in_ob(object *op,object *where) {	1636	object *
		1637	object::insert (object *op)
		1638	{
1658	object *tmp, *otmp;	1639	object *tmp, *otmp;
1659		1640
1660	if(!QUERY_FLAG(op,FLAG_REMOVED)) {	1641	if (!QUERY_FLAG (op, FLAG_REMOVED))
1661	dump_object(op);	1642	op->remove ();
1662	LOG(llevError,"Trying to insert (ob) inserted object.\n%s\n", errmsg);	1643
1663	return op;
1664	}
1665	if(where==NULL) {
1666	dump_object(op);
1667	LOG(llevError,"Trying to put object in NULL.\n%s\n", errmsg);
1668	return op;
1669	}
1670	if (where->head) {
1671	LOG(llevDebug,
1672	"Warning: Tried to insert object wrong part of multipart object.\n");
1673	where = where->head;
1674	}
1675	if (op->more) {	1644	if (op->more)
		1645	{
1676	LOG(llevError, "Tried to insert multipart object %s (%d)\n",	1646	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);
1677	&op->name, op->count);
1678	return op;	1647	return op;
1679	}	1648	}
		1649
1680	CLEAR_FLAG(op, FLAG_OBJ_ORIGINAL);	1650	CLEAR_FLAG (op, FLAG_OBJ_ORIGINAL);
1681	CLEAR_FLAG(op, FLAG_REMOVED);	1651	CLEAR_FLAG (op, FLAG_REMOVED);
1682	if(op->nrof) {	1652	if (op->nrof)
		1653	{
1683	for(tmp=where->inv;tmp!=NULL;tmp=tmp->below)	1654	for (tmp = inv; tmp != NULL; tmp = tmp->below)
1684	if ( CAN_MERGE(tmp,op) ) {	1655	if (object::can_merge (tmp, op))
		1656	{
1685	/* return the original object and remove inserted object	1657	/* return the original object and remove inserted object
1686	(client needs the original object) */	1658	(client needs the original object) */
1687	tmp->nrof += op->nrof;	1659	tmp->nrof += op->nrof;
1688	/* Weight handling gets pretty funky. Since we are adding to	1660	/* Weight handling gets pretty funky. Since we are adding to
1689	* tmp->nrof, we need to increase the weight.	1661	* tmp->nrof, we need to increase the weight.
1690	*/	1662	*/
1691	add_weight (where, op->weight*op->nrof);	1663	add_weight (this, op->weight * op->nrof);
1692	SET_FLAG(op, FLAG_REMOVED);	1664	SET_FLAG (op, FLAG_REMOVED);
1693	free_object(op); /* free the inserted object */	1665	op->destroy (); /* free the inserted object */
1694	op = tmp;	1666	op = tmp;
1695	remove_ob (op); /* and fix old object's links */	1667	op->remove (); /* and fix old object's links */
1696	CLEAR_FLAG(op, FLAG_REMOVED);	1668	CLEAR_FLAG (op, FLAG_REMOVED);
1697	break;	1669	break;
1698	}	1670	}
1699		1671
1700	/* I assume combined objects have no inventory	1672	/* I assume combined objects have no inventory
1701	* We add the weight - this object could have just been removed	1673	* We add the weight - this object could have just been removed
1702	* (if it was possible to merge). calling remove_ob will subtract	1674	* (if it was possible to merge). calling remove_ob will subtract
1703	* the weight, so we need to add it in again, since we actually do	1675	* the weight, so we need to add it in again, since we actually do
1704	* the linking below	1676	* the linking below
1705	*/	1677	*/
1706	add_weight (where, op->weight*op->nrof);	1678	add_weight (this, op->weight * op->nrof);
		1679	}
1707	} else	1680	else
1708	add_weight (where, (op->weight+op->carrying));	1681	add_weight (this, (op->weight + op->carrying));
1709		1682
1710	otmp=is_player_inv(where);	1683	otmp = this->in_player ();
1711	if (otmp&&otmp->contr!=NULL) {	1684	if (otmp && otmp->contr)
1712	if (!QUERY_FLAG(otmp,FLAG_NO_FIX_PLAYER))	1685	if (!QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1713	fix_player(otmp);	1686	otmp->update_stats ();
1714	}
1715		1687
1716	op->map=NULL;	1688	op->map = 0;
1717	op->env=where;	1689	op->env = this;
1718	op->above=NULL;	1690	op->above = 0;
1719	op->below=NULL;	1691	op->below = 0;
1720	op->x=0,op->y=0;	1692	op->x = 0, op->y = 0;
1721		1693
1722	/* reset the light list and los of the players on the map */	1694	/* reset the light list and los of the players on the map */
1723	if((op->glow_radius!=0)&&where->map)	1695	if ((op->glow_radius != 0) && map)
1724	{	1696	{
1725	#ifdef DEBUG_LIGHTS	1697	#ifdef DEBUG_LIGHTS
1726	LOG(llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n",	1698	LOG (llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n", op->name);
1727	op->name);
1728	#endif /* DEBUG_LIGHTS */	1699	#endif /* DEBUG_LIGHTS */
1729	if (MAP_DARKNESS(where->map)) update_all_los(where->map, where->x, where->y);	1700	if (MAP_DARKNESS (map))
		1701	update_all_los (map, x, y);
1730	}	1702	}
1731		1703
1732	/* Client has no idea of ordering so lets not bother ordering it here.	1704	/* Client has no idea of ordering so lets not bother ordering it here.
1733	* It sure simplifies this function...	1705	* It sure simplifies this function...
1734	*/	1706	*/
1735	if (where->inv==NULL)	1707	if (!inv)
1736	where->inv=op;	1708	inv = op;
1737	else {	1709	else
		1710	{
1738	op->below = where->inv;	1711	op->below = inv;
1739	op->below->above = op;	1712	op->below->above = op;
1740	where->inv = op;	1713	inv = op;
1741	}	1714	}
		1715
1742	return op;	1716	return op;
1743	}	1717	}
1744		1718
1745	/*	1719	/*
1746	* Checks if any objects has a move_type that matches objects	1720	* Checks if any objects has a move_type that matches objects
…		…
1761	* MSW 2001-07-08: Check all objects on space, not just those below	1735	* MSW 2001-07-08: Check all objects on space, not just those below
1762	* object being inserted. insert_ob_in_map may not put new objects	1736	* object being inserted. insert_ob_in_map may not put new objects
1763	* on top.	1737	* on top.
1764	*/	1738	*/
1765		1739
		1740	int
1766	int check_move_on (object *op, object *originator)	1741	check_move_on (object *op, object *originator)
1767	{	1742	{
1768	object *tmp;	1743	object *tmp;
1769	tag_t tag;
1770	mapstruct *m=op->map;	1744	maptile *m = op->map;
1771	int x=op->x, y=op->y;	1745	int x = op->x, y = op->y;
		1746
1772	MoveType move_on, move_slow, move_block;	1747	MoveType move_on, move_slow, move_block;
1773		1748
1774	if(QUERY_FLAG(op,FLAG_NO_APPLY))	1749	if (QUERY_FLAG (op, FLAG_NO_APPLY))
1775	return 0;	1750	return 0;
1776		1751
1777	tag = op->count;
1778
1779	move_on = GET_MAP_MOVE_ON(op->map, op->x, op->y);	1752	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);
1780	move_slow = GET_MAP_MOVE_SLOW(op->map, op->x, op->y);	1753	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);
1781	move_block = GET_MAP_MOVE_BLOCK(op->map, op->x, op->y);	1754	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);
1782		1755
1783	/* if nothing on this space will slow op down or be applied,	1756	/* if nothing on this space will slow op down or be applied,
1784	* no need to do checking below. have to make sure move_type	1757	* no need to do checking below. have to make sure move_type
1785	* is set, as lots of objects don't have it set - we treat that	1758	* is set, as lots of objects don't have it set - we treat that
1786	* as walking.	1759	* as walking.
1787	*/	1760	*/
1788	if (op->move_type && !(op->move_type & move_on) && !(op->move_type & move_slow))	1761	if (op->move_type && !(op->move_type & move_on) && !(op->move_type & move_slow))
1789	return 0;	1762	return 0;
1790		1763
1791	/* This is basically inverse logic of that below - basically,	1764	/* This is basically inverse logic of that below - basically,
1792	* if the object can avoid the move on or slow move, they do so,	1765	* if the object can avoid the move on or slow move, they do so,
1793	* but can't do it if the alternate movement they are using is	1766	* but can't do it if the alternate movement they are using is
1794	* blocked. Logic on this seems confusing, but does seem correct.	1767	* blocked. Logic on this seems confusing, but does seem correct.
1795	*/	1768	*/
1796	if ((op->move_type & ~move_on & ~move_block) != 0 &&	1769	if ((op->move_type & ~move_on & ~move_block) != 0 && (op->move_type & ~move_slow & ~move_block) != 0)
1797	(op->move_type & ~move_slow & ~move_block) != 0) return 0;	1770	return 0;
1798		1771
1799	/* The objects have to be checked from top to bottom.	1772	/* The objects have to be checked from top to bottom.
1800	* Hence, we first go to the top:	1773	* Hence, we first go to the top:
1801	*/	1774	*/
1802		1775
1803	for (tmp=GET_MAP_OB(op->map, op->x, op->y); tmp!=NULL &&	1776	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL && tmp->above != NULL; tmp = tmp->above)
1804	tmp->above!=NULL; tmp=tmp->above) {	1777	{
1805	/* Trim the search when we find the first other spell effect	1778	/* Trim the search when we find the first other spell effect
1806	* this helps performance so that if a space has 50 spell objects,	1779	* this helps performance so that if a space has 50 spell objects,
1807	* we don't need to check all of them.	1780	* we don't need to check all of them.
1808	*/	1781	*/
1809	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG(tmp, FLAG_NO_PICK)) break;	1782	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG (tmp, FLAG_NO_PICK))
		1783	break;
		1784	}
		1785
		1786	for (; tmp; tmp = tmp->below)
1810	}	1787	{
1811	for(;tmp!=NULL; tmp=tmp->below) {	1788	if (tmp == op)
1812	if (tmp == op) continue; /* Can't apply yourself */	1789	continue; /* Can't apply yourself */
1813		1790
1814	/* Check to see if one of the movement types should be slowed down.	1791	/* Check to see if one of the movement types should be slowed down.
1815	* Second check makes sure that the movement types not being slowed	1792	* Second check makes sure that the movement types not being slowed
1816	* (~slow_move) is not blocked on this space - just because the	1793	* (~slow_move) is not blocked on this space - just because the
1817	* space doesn't slow down swimming (for example), if you can't actually	1794	* space doesn't slow down swimming (for example), if you can't actually
1818	* swim on that space, can't use it to avoid the penalty.	1795	* swim on that space, can't use it to avoid the penalty.
1819	*/	1796	*/
1820	if (!QUERY_FLAG(op, FLAG_WIZPASS)) {	1797	if (!QUERY_FLAG (op, FLAG_WIZPASS))
		1798	{
1821	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||	1799	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||
1822	((op->move_type & tmp->move_slow) &&
1823	(op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0)) {	1800	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))
		1801	{
1824		1802
1825	float diff;	1803	float
1826
1827	diff = tmp->move_slow_penalty*FABS(op->speed);	1804	diff = tmp->move_slow_penalty * FABS (op->speed);
		1805
1828	if (op->type == PLAYER) {	1806	if (op->type == PLAYER)
1829	if ((QUERY_FLAG(tmp, FLAG_IS_HILLY) && find_skill_by_number(op, SK_CLIMBING)) ||	1807	if ((QUERY_FLAG (tmp, FLAG_IS_HILLY) && find_skill_by_number (op, SK_CLIMBING)) ||
1830	(QUERY_FLAG(tmp, FLAG_IS_WOODED) && find_skill_by_number(op, SK_WOODSMAN))) {	1808	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))
1831	diff /= 4.0;	1809	diff /= 4.0;
1832	}	1810
1833	}
1834	op->speed_left -= diff;	1811	op->speed_left -= diff;
1835	}	1812	}
1836	}	1813	}
1837		1814
1838	/* Basically same logic as above, except now for actual apply. */	1815	/* Basically same logic as above, except now for actual apply. */
1839	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||	1816	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||
1840	((op->move_type & tmp->move_on) &&
1841	(op->move_type & ~tmp->move_on & ~tmp->move_block)==0)) {	1817	((op->move_type & tmp->move_on) && (op->move_type & ~tmp->move_on & ~tmp->move_block) == 0))
1842		1818	{
1843	move_apply(tmp, op, originator);	1819	move_apply (tmp, op, originator);
		1820
1844	if (was_destroyed (op, tag))	1821	if (op->destroyed ())
1845	return 1;	1822	return 1;
1846		1823
1847	/* what the person/creature stepped onto has moved the object	1824	/* what the person/creature stepped onto has moved the object
1848	* someplace new. Don't process any further - if we did,	1825	* someplace new. Don't process any further - if we did,
1849	* have a feeling strange problems would result.	1826	* have a feeling strange problems would result.
1850	*/	1827	*/
1851	if (op->map != m || op->x != x || op->y != y) return 0;	1828	if (op->map != m || op->x != x || op->y != y)
		1829	return 0;
1852	}	1830	}
1853	}	1831	}
		1832
1854	return 0;	1833	return 0;
1855	}	1834	}
1856		1835
1857	/*	1836	/*
1858	* present_arch(arch, map, x, y) searches for any objects with	1837	* present_arch(arch, map, x, y) searches for any objects with
1859	* a matching archetype at the given map and coordinates.	1838	* a matching archetype at the given map and coordinates.
1860	* The first matching object is returned, or NULL if none.	1839	* The first matching object is returned, or NULL if none.
1861	*/	1840	*/
1862		1841
		1842	object *
1863	object *present_arch(const archetype *at, mapstruct *m, int x, int y) {	1843	present_arch (const archetype *at, maptile *m, int x, int y)
		1844	{
1864	object *tmp;	1845	object *
		1846	tmp;
		1847
1865	if(m==NULL || out_of_map(m,x,y)) {	1848	if (m == NULL || out_of_map (m, x, y))
		1849	{
1866	LOG(llevError,"Present_arch called outside map.\n");	1850	LOG (llevError, "Present_arch called outside map.\n");
1867	return NULL;	1851	return NULL;
1868	}	1852	}
1869	for(tmp=GET_MAP_OB(m,x,y); tmp != NULL; tmp = tmp->above)	1853	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)
1870	if(tmp->arch == at)	1854	if (tmp->arch == at)
1871	return tmp;	1855	return tmp;
1872	return NULL;	1856	return NULL;
1873	}	1857	}
1874		1858
1875	/*	1859	/*
1876	* present(type, map, x, y) searches for any objects with	1860	* present(type, map, x, y) searches for any objects with
1877	* a matching type variable at the given map and coordinates.	1861	* a matching type variable at the given map and coordinates.
1878	* The first matching object is returned, or NULL if none.	1862	* The first matching object is returned, or NULL if none.
1879	*/	1863	*/
1880		1864
		1865	object *
1881	object *present(unsigned char type,mapstruct *m, int x,int y) {	1866	present (unsigned char type, maptile *m, int x, int y)
		1867	{
1882	object *tmp;	1868	object *
		1869	tmp;
		1870
1883	if(out_of_map(m,x,y)) {	1871	if (out_of_map (m, x, y))
		1872	{
1884	LOG(llevError,"Present called outside map.\n");	1873	LOG (llevError, "Present called outside map.\n");
1885	return NULL;	1874	return NULL;
1886	}	1875	}
1887	for(tmp=GET_MAP_OB(m,x,y);tmp!=NULL;tmp=tmp->above)	1876	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)
1888	if(tmp->type==type)	1877	if (tmp->type == type)
1889	return tmp;	1878	return tmp;
1890	return NULL;	1879	return NULL;
1891	}	1880	}
1892		1881
1893	/*	1882	/*
1894	* present_in_ob(type, object) searches for any objects with	1883	* present_in_ob(type, object) searches for any objects with
1895	* a matching type variable in the inventory of the given object.	1884	* a matching type variable in the inventory of the given object.
1896	* The first matching object is returned, or NULL if none.	1885	* The first matching object is returned, or NULL if none.
1897	*/	1886	*/
1898		1887
		1888	object *
1899	object *present_in_ob(unsigned char type, const object *op) {	1889	present_in_ob (unsigned char type, const object *op)
		1890	{
1900	object *tmp;	1891	object *
		1892	tmp;
		1893
1901	for(tmp=op->inv;tmp!=NULL;tmp=tmp->below)	1894	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)
1902	if(tmp->type==type)	1895	if (tmp->type == type)
1903	return tmp;	1896	return tmp;
1904	return NULL;	1897	return NULL;
1905	}	1898	}
1906		1899
1907	/*	1900	/*
…		…
1917	* the object name, not the archetype name. this is so that the	1910	* the object name, not the archetype name. this is so that the
1918	* spell code can use one object type (force), but change it's name	1911	* spell code can use one object type (force), but change it's name
1919	* to be unique.	1912	* to be unique.
1920	*/	1913	*/
1921		1914
		1915	object *
1922	object *present_in_ob_by_name(int type, const char *str, const object *op) {	1916	present_in_ob_by_name (int type, const char *str, const object *op)
		1917	{
1923	object *tmp;	1918	object *
		1919	tmp;
1924		1920
1925	for(tmp=op->inv; tmp!=NULL; tmp=tmp->below) {	1921	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)
		1922	{
1926	if ((type==-1 || tmp->type==type) && (!strcmp(str, tmp->name)))	1923	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))
1927	return tmp;	1924	return tmp;
1928	}	1925	}
1929	return NULL;	1926	return NULL;
1930	}	1927	}
1931		1928
1932	/*	1929	/*
1933	* present_arch_in_ob(archetype, object) searches for any objects with	1930	* present_arch_in_ob(archetype, object) searches for any objects with
1934	* a matching archetype in the inventory of the given object.	1931	* a matching archetype in the inventory of the given object.
1935	* The first matching object is returned, or NULL if none.	1932	* The first matching object is returned, or NULL if none.
1936	*/	1933	*/
1937		1934
		1935	object *
1938	object *present_arch_in_ob(const archetype *at, const object *op) {	1936	present_arch_in_ob (const archetype *at, const object *op)
		1937	{
1939	object *tmp;	1938	object *
		1939	tmp;
		1940
1940	for(tmp=op->inv;tmp!=NULL;tmp=tmp->below)	1941	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)
1941	if( tmp->arch == at)	1942	if (tmp->arch == at)
1942	return tmp;	1943	return tmp;
1943	return NULL;	1944	return NULL;
1944	}	1945	}
1945		1946
1946	/*	1947	/*
1947	* activate recursively a flag on an object inventory	1948	* activate recursively a flag on an object inventory
1948	*/	1949	*/
		1950	void
1949	void flag_inv(object*op, int flag){	1951	flag_inv (object *op, int flag)
		1952	{
1950	object *tmp;	1953	object *
		1954	tmp;
		1955
1951	if(op->inv)	1956	if (op->inv)
1952	for(tmp = op->inv; tmp != NULL; tmp = tmp->below){	1957	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)
		1958	{
1953	SET_FLAG(tmp, flag);	1959	SET_FLAG (tmp, flag);
1954	flag_inv(tmp,flag);	1960	flag_inv (tmp, flag);
1955	}	1961	}
1956	}/*	1962	} /*
1957	* desactivate recursively a flag on an object inventory	1963	* desactivate recursively a flag on an object inventory
1958	*/	1964	*/
		1965	void
1959	void unflag_inv(object*op, int flag){	1966	unflag_inv (object *op, int flag)
		1967	{
1960	object *tmp;	1968	object *
		1969	tmp;
		1970
1961	if(op->inv)	1971	if (op->inv)
1962	for(tmp = op->inv; tmp != NULL; tmp = tmp->below){	1972	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)
		1973	{
1963	CLEAR_FLAG(tmp, flag);	1974	CLEAR_FLAG (tmp, flag);
1964	unflag_inv(tmp,flag);	1975	unflag_inv (tmp, flag);
1965	}	1976	}
1966	}	1977	}
1967		1978
1968	/*	1979	/*
1969	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in	1980	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in
1970	* all it's inventory (recursively).	1981	* all it's inventory (recursively).
1971	* If checksums are used, a player will get set_cheat called for	1982	* If checksums are used, a player will get set_cheat called for
1972	* him/her-self and all object carried by a call to this function.	1983	* him/her-self and all object carried by a call to this function.
1973	*/	1984	*/
1974		1985
		1986	void
1975	void set_cheat(object *op) {	1987	set_cheat (object *op)
		1988	{
1976	SET_FLAG(op, FLAG_WAS_WIZ);	1989	SET_FLAG (op, FLAG_WAS_WIZ);
1977	flag_inv(op, FLAG_WAS_WIZ);	1990	flag_inv (op, FLAG_WAS_WIZ);
1978	}	1991	}
1979		1992
1980	/*	1993	/*
1981	* find_free_spot(object, map, x, y, start, stop) will search for	1994	* find_free_spot(object, map, x, y, start, stop) will search for
1982	* a spot at the given map and coordinates which will be able to contain	1995	* a spot at the given map and coordinates which will be able to contain
…		…
1997	* to know if the space in question will block the object. We can't use	2010	* to know if the space in question will block the object. We can't use
1998	* the archetype because that isn't correct if the monster has been	2011	* the archetype because that isn't correct if the monster has been
1999	* customized, changed states, etc.	2012	* customized, changed states, etc.
2000	*/	2013	*/
2001		2014
		2015	int
2002	int find_free_spot(const object *ob, mapstruct *m,int x,int y,int start,int stop) {	2016	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)
		2017	{
		2018	int
		2019	i,
2003	int i,index=0, flag;	2020	index = 0, flag;
		2021	static int
2004	static int altern[SIZEOFFREE];	2022	altern[SIZEOFFREE];
2005		2023
2006	for(i=start;i<stop;i++) {	2024	for (i = start; i < stop; i++)
		2025	{
2007	flag = ob_blocked(ob,m,x+freearr_x[i],y+freearr_y[i]);	2026	flag = ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]);
2008	if(!flag)	2027	if (!flag)
2009	altern[index++]=i;	2028	altern[index++] = i;
2010		2029
2011	/* Basically, if we find a wall on a space, we cut down the search size.	2030	/* Basically, if we find a wall on a space, we cut down the search size.
2012	* In this way, we won't return spaces that are on another side of a wall.	2031	* In this way, we won't return spaces that are on another side of a wall.
2013	* This mostly work, but it cuts down the search size in all directions -	2032	* This mostly work, but it cuts down the search size in all directions -
2014	* if the space being examined only has a wall to the north and empty	2033	* if the space being examined only has a wall to the north and empty
2015	* spaces in all the other directions, this will reduce the search space	2034	* spaces in all the other directions, this will reduce the search space
2016	* to only the spaces immediately surrounding the target area, and	2035	* to only the spaces immediately surrounding the target area, and
2017	* won't look 2 spaces south of the target space.	2036	* won't look 2 spaces south of the target space.
2018	*/	2037	*/
2019	else if ((flag & AB_NO_PASS) && maxfree[i]<stop)	2038	else if ((flag & P_NO_PASS) && maxfree[i] < stop)
2020	stop=maxfree[i];	2039	stop = maxfree[i];
2021	}	2040	}
2022	if(!index) return -1;	2041
		2042	if (!index)
		2043	return -1;
		2044
2023	return altern[RANDOM()%index];	2045	return altern[RANDOM () % index];
2024	}	2046	}
2025		2047
2026	/*	2048	/*
2027	* find_first_free_spot(archetype, mapstruct, x, y) works like	2049	* find_first_free_spot(archetype, maptile, x, y) works like
2028	* find_free_spot(), but it will search max number of squares.	2050	* find_free_spot(), but it will search max number of squares.
2029	* But it will return the first available spot, not a random choice.	2051	* But it will return the first available spot, not a random choice.
2030	* Changed 0.93.2: Have it return -1 if there is no free spot available.	2052	* Changed 0.93.2: Have it return -1 if there is no free spot available.
2031	*/	2053	*/
2032		2054
		2055	int
2033	int find_first_free_spot(const object *ob, mapstruct *m,int x,int y) {	2056	find_first_free_spot (const object *ob, maptile *m, int x, int y)
		2057	{
		2058	int
2034	int i;	2059	i;
		2060
2035	for(i=0;i<SIZEOFFREE;i++) {	2061	for (i = 0; i < SIZEOFFREE; i++)
		2062	{
2036	if(!ob_blocked(ob,m,x+freearr_x[i],y+freearr_y[i]))	2063	if (!ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]))
2037	return i;	2064	return i;
2038	}	2065	}
2039	return -1;	2066	return -1;
2040	}	2067	}
2041		2068
2042	/*	2069	/*
2043	* The function permute(arr, begin, end) randomly reorders the array	2070	* The function permute(arr, begin, end) randomly reorders the array
2044	* arr[begin..end-1].	2071	* arr[begin..end-1].
2045	*/	2072	*/
		2073	static void
2046	static void permute(int *arr, int begin, int end)	2074	permute (int *arr, int begin, int end)
2047	{	2075	{
2048	int i, j, tmp, len;	2076	int
		2077	i,
		2078	j,
		2079	tmp,
		2080	len;
2049		2081
2050	len = end-begin;	2082	len = end - begin;
2051	for(i = begin; i < end; i++)	2083	for (i = begin; i < end; i++)
2052	{	2084	{
2053	j = begin+RANDOM()%len;	2085	j = begin + RANDOM () % len;
2054		2086
2055	tmp = arr[i];	2087	tmp = arr[i];
2056	arr[i] = arr[j];	2088	arr[i] = arr[j];
2057	arr[j] = tmp;	2089	arr[j] = tmp;
2058	}	2090	}
2059	}	2091	}
2060		2092
2061	/* new function to make monster searching more efficient, and effective!	2093	/* new function to make monster searching more efficient, and effective!
2062	* This basically returns a randomized array (in the passed pointer) of	2094	* This basically returns a randomized array (in the passed pointer) of
2063	* the spaces to find monsters. In this way, it won't always look for	2095	* the spaces to find monsters. In this way, it won't always look for
2064	* monsters to the north first. However, the size of the array passed	2096	* monsters to the north first. However, the size of the array passed
2065	* covers all the spaces, so within that size, all the spaces within	2097	* covers all the spaces, so within that size, all the spaces within
2066	* the 3x3 area will be searched, just not in a predictable order.	2098	* the 3x3 area will be searched, just not in a predictable order.
2067	*/	2099	*/
		2100	void
2068	void get_search_arr(int *search_arr)	2101	get_search_arr (int *search_arr)
2069	{	2102	{
		2103	int
2070	int i;	2104	i;
2071		2105
2072	for(i = 0; i < SIZEOFFREE; i++)	2106	for (i = 0; i < SIZEOFFREE; i++)
2073	{	2107	{
2074	search_arr[i] = i;	2108	search_arr[i] = i;
2075	}	2109	}
2076		2110
2077	permute(search_arr, 1, SIZEOFFREE1+1);	2111	permute (search_arr, 1, SIZEOFFREE1 + 1);
2078	permute(search_arr, SIZEOFFREE1+1, SIZEOFFREE2+1);	2112	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);
2079	permute(search_arr, SIZEOFFREE2+1, SIZEOFFREE);	2113	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);
2080	}	2114	}
2081		2115
2082	/*	2116	/*
2083	* find_dir(map, x, y, exclude) will search some close squares in the	2117	* find_dir(map, x, y, exclude) will search some close squares in the
2084	* given map at the given coordinates for live objects.	2118	* given map at the given coordinates for live objects.
…		…
2090	* is actually want is going to try and move there. We need this info	2124	* is actually want is going to try and move there. We need this info
2091	* because we have to know what movement the thing looking to move	2125	* because we have to know what movement the thing looking to move
2092	* there is capable of.	2126	* there is capable of.
2093	*/	2127	*/
2094		2128
		2129	int
2095	int find_dir(mapstruct *m, int x, int y, object *exclude) {	2130	find_dir (maptile *m, int x, int y, object *exclude)
		2131	{
		2132	int
		2133	i,
2096	int i,max=SIZEOFFREE, mflags;	2134	max = SIZEOFFREE, mflags;
		2135
2097	sint16 nx, ny;	2136	sint16 nx, ny;
2098	object *tmp;	2137	object *
2099	mapstruct *mp;	2138	tmp;
		2139	maptile *
		2140	mp;
		2141
2100	MoveType blocked, move_type;	2142	MoveType blocked, move_type;
2101		2143
2102	if (exclude && exclude->head) {	2144	if (exclude && exclude->head)
		2145	{
2103	exclude = exclude->head;	2146	exclude = exclude->head;
2104	move_type = exclude->move_type;	2147	move_type = exclude->move_type;
2105	} else {	2148	}
		2149	else
		2150	{
2106	/* If we don't have anything, presume it can use all movement types. */	2151	/* If we don't have anything, presume it can use all movement types. */
2107	move_type=MOVE_ALL;	2152	move_type = MOVE_ALL;
		2153	}
		2154
		2155	for (i = 1; i < max; i++)
2108	}	2156	{
2109
2110	for(i=1;i<max;i++) {
2111	mp = m;	2157	mp = m;
2112	nx = x + freearr_x[i];	2158	nx = x + freearr_x[i];
2113	ny = y + freearr_y[i];	2159	ny = y + freearr_y[i];
2114		2160
2115	mflags = get_map_flags(m, &mp, nx, ny, &nx, &ny);	2161	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);
		2162
2116	if (mflags & P_OUT_OF_MAP) {	2163	if (mflags & P_OUT_OF_MAP)
		2164	max = maxfree[i];
		2165	else
		2166	{
		2167	blocked = GET_MAP_MOVE_BLOCK (mp, nx, ny);
		2168
		2169	if ((move_type & blocked) == move_type)
2117	max = maxfree[i];	2170	max = maxfree[i];
2118	} else {
2119	blocked = GET_MAP_MOVE_BLOCK(mp, nx, ny);
2120
2121	if ((move_type & blocked) == move_type) {
2122	max=maxfree[i];
2123	} else if (mflags & P_IS_ALIVE) {	2171	else if (mflags & P_IS_ALIVE)
		2172	{
2124	for (tmp=GET_MAP_OB(mp,nx,ny); tmp!= NULL; tmp=tmp->above) {	2173	for (tmp = GET_MAP_OB (mp, nx, ny); tmp; tmp = tmp->above)
2125	if ((QUERY_FLAG(tmp,FLAG_MONSTER) || tmp->type==PLAYER) &&	2174	if ((QUERY_FLAG (tmp, FLAG_MONSTER) || tmp->type == PLAYER) && (tmp != exclude || (tmp->head && tmp->head != exclude)))
2126	(tmp != exclude ||(tmp->head && tmp->head != exclude))) {
2127	break;	2175	break;
2128	}	2176
2129	}
2130	if(tmp) {	2177	if (tmp)
2131	return freedir[i];	2178	return freedir[i];
2132	}
2133	}	2179	}
2134	}	2180	}
2135	}	2181	}
		2182
2136	return 0;	2183	return 0;
2137	}	2184	}
2138		2185
2139	/*	2186	/*
2140	* distance(object 1, object 2) will return the square of the	2187	* distance(object 1, object 2) will return the square of the
2141	* distance between the two given objects.	2188	* distance between the two given objects.
2142	*/	2189	*/
2143		2190
		2191	int
2144	int distance(const object *ob1, const object *ob2) {	2192	distance (const object *ob1, const object *ob2)
		2193	{
2145	int i;	2194	int i;
2146	i= (ob1->x - ob2->x)*(ob1->x - ob2->x)+	2195
2147	(ob1->y - ob2->y)*(ob1->y - ob2->y);	2196	i = (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);
2148	return i;	2197	return i;
2149	}	2198	}
2150		2199
2151	/*	2200	/*
2152	* find_dir_2(delta-x,delta-y) will return a direction in which	2201	* find_dir_2(delta-x,delta-y) will return a direction in which
2153	* an object which has subtracted the x and y coordinates of another	2202	* an object which has subtracted the x and y coordinates of another
2154	* object, needs to travel toward it.	2203	* object, needs to travel toward it.
2155	*/	2204	*/
2156		2205
		2206	int
2157	int find_dir_2(int x, int y) {	2207	find_dir_2 (int x, int y)
		2208	{
2158	int q;	2209	int q;
2159		2210
2160	if(y)	2211	if (y)
2161	q=x*100/y;	2212	q = x * 100 / y;
2162	else if (x)	2213	else if (x)
2163	q= -300*x;	2214	q = -300 * x;
2164	else	2215	else
2165	return 0;	2216	return 0;
2166		2217
2167	if(y>0) {	2218	if (y > 0)
		2219	{
2168	if(q < -242)	2220	if (q < -242)
2169	return 3 ;	2221	return 3;
2170	if (q < -41)	2222	if (q < -41)
2171	return 2 ;	2223	return 2;
2172	if (q < 41)	2224	if (q < 41)
2173	return 1 ;	2225	return 1;
2174	if (q < 242)	2226	if (q < 242)
2175	return 8 ;	2227	return 8;
2176	return 7 ;	2228	return 7;
2177	}	2229	}
2178		2230
2179	if (q < -242)	2231	if (q < -242)
2180	return 7 ;	2232	return 7;
2181	if (q < -41)	2233	if (q < -41)
2182	return 6 ;	2234	return 6;
2183	if (q < 41)	2235	if (q < 41)
2184	return 5 ;	2236	return 5;
2185	if (q < 242)	2237	if (q < 242)
2186	return 4 ;	2238	return 4;
2187		2239
2188	return 3 ;	2240	return 3;
2189	}	2241	}
2190		2242
2191	/*	2243	/*
2192	* absdir(int): Returns a number between 1 and 8, which represent	2244	* absdir(int): Returns a number between 1 and 8, which represent
2193	* the "absolute" direction of a number (it actually takes care of	2245	* the "absolute" direction of a number (it actually takes care of
2194	* "overflow" in previous calculations of a direction).	2246	* "overflow" in previous calculations of a direction).
2195	*/	2247	*/
2196		2248
		2249	int
2197	int absdir(int d) {	2250	absdir (int d)
2198	while(d<1) d+=8;	2251	{
2199	while(d>8) d-=8;	2252	while (d < 1)
		2253	d += 8;
		2254	while (d > 8)
		2255	d -= 8;
2200	return d;	2256	return d;
2201	}	2257	}
2202		2258
2203	/*	2259	/*
2204	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is	2260	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is
2205	* between two directions (which are expected to be absolute (see absdir())	2261	* between two directions (which are expected to be absolute (see absdir())
2206	*/	2262	*/
2207		2263
		2264	int
2208	int dirdiff(int dir1, int dir2) {	2265	dirdiff (int dir1, int dir2)
		2266	{
2209	int d;	2267	int
		2268	d;
		2269
2210	d = abs(dir1 - dir2);	2270	d = abs (dir1 - dir2);
2211	if(d>4)	2271	if (d > 4)
2212	d = 8 - d;	2272	d = 8 - d;
2213	return d;	2273	return d;
2214	}	2274	}
2215		2275
2216	/* peterm:	2276	/* peterm:
…		…
2221	* direction 4, 14, or 16 to get back to where we are.	2281	* direction 4, 14, or 16 to get back to where we are.
2222	* Moved from spell_util.c to object.c with the other related direction	2282	* Moved from spell_util.c to object.c with the other related direction
2223	* functions.	2283	* functions.
2224	*/	2284	*/
2225		2285
		2286	int
2226	int reduction_dir[SIZEOFFREE][3] = {	2287	reduction_dir[SIZEOFFREE][3] = {
2227	{0,0,0}, /* 0 */	2288	{0, 0, 0}, /* 0 */
2228	{0,0,0}, /* 1 */	2289	{0, 0, 0}, /* 1 */
2229	{0,0,0}, /* 2 */	2290	{0, 0, 0}, /* 2 */
2230	{0,0,0}, /* 3 */	2291	{0, 0, 0}, /* 3 */
2231	{0,0,0}, /* 4 */	2292	{0, 0, 0}, /* 4 */
2232	{0,0,0}, /* 5 */	2293	{0, 0, 0}, /* 5 */
2233	{0,0,0}, /* 6 */	2294	{0, 0, 0}, /* 6 */
2234	{0,0,0}, /* 7 */	2295	{0, 0, 0}, /* 7 */
2235	{0,0,0}, /* 8 */	2296	{0, 0, 0}, /* 8 */
2236	{8,1,2}, /* 9 */	2297	{8, 1, 2}, /* 9 */
2237	{1,2,-1}, /* 10 */	2298	{1, 2, -1}, /* 10 */
2238	{2,10,12}, /* 11 */	2299	{2, 10, 12}, /* 11 */
2239	{2,3,-1}, /* 12 */	2300	{2, 3, -1}, /* 12 */
2240	{2,3,4}, /* 13 */	2301	{2, 3, 4}, /* 13 */
2241	{3,4,-1}, /* 14 */	2302	{3, 4, -1}, /* 14 */
2242	{4,14,16}, /* 15 */	2303	{4, 14, 16}, /* 15 */
2243	{5,4,-1}, /* 16 */	2304	{5, 4, -1}, /* 16 */
2244	{4,5,6}, /* 17 */	2305	{4, 5, 6}, /* 17 */
2245	{6,5,-1}, /* 18 */	2306	{6, 5, -1}, /* 18 */
2246	{6,20,18}, /* 19 */	2307	{6, 20, 18}, /* 19 */
2247	{7,6,-1}, /* 20 */	2308	{7, 6, -1}, /* 20 */
2248	{6,7,8}, /* 21 */	2309	{6, 7, 8}, /* 21 */
2249	{7,8,-1}, /* 22 */	2310	{7, 8, -1}, /* 22 */
2250	{8,22,24}, /* 23 */	2311	{8, 22, 24}, /* 23 */
2251	{8,1,-1}, /* 24 */	2312	{8, 1, -1}, /* 24 */
2252	{24,9,10}, /* 25 */	2313	{24, 9, 10}, /* 25 */
2253	{9,10,-1}, /* 26 */	2314	{9, 10, -1}, /* 26 */
2254	{10,11,-1}, /* 27 */	2315	{10, 11, -1}, /* 27 */
2255	{27,11,29}, /* 28 */	2316	{27, 11, 29}, /* 28 */
2256	{11,12,-1}, /* 29 */	2317	{11, 12, -1}, /* 29 */
2257	{12,13,-1}, /* 30 */	2318	{12, 13, -1}, /* 30 */
2258	{12,13,14}, /* 31 */	2319	{12, 13, 14}, /* 31 */
2259	{13,14,-1}, /* 32 */	2320	{13, 14, -1}, /* 32 */
2260	{14,15,-1}, /* 33 */	2321	{14, 15, -1}, /* 33 */
2261	{33,15,35}, /* 34 */	2322	{33, 15, 35}, /* 34 */
2262	{16,15,-1}, /* 35 */	2323	{16, 15, -1}, /* 35 */
2263	{17,16,-1}, /* 36 */	2324	{17, 16, -1}, /* 36 */
2264	{18,17,16}, /* 37 */	2325	{18, 17, 16}, /* 37 */
2265	{18,17,-1}, /* 38 */	2326	{18, 17, -1}, /* 38 */
2266	{18,19,-1}, /* 39 */	2327	{18, 19, -1}, /* 39 */
2267	{41,19,39}, /* 40 */	2328	{41, 19, 39}, /* 40 */
2268	{19,20,-1}, /* 41 */	2329	{19, 20, -1}, /* 41 */
2269	{20,21,-1}, /* 42 */	2330	{20, 21, -1}, /* 42 */
2270	{20,21,22}, /* 43 */	2331	{20, 21, 22}, /* 43 */
2271	{21,22,-1}, /* 44 */	2332	{21, 22, -1}, /* 44 */
2272	{23,22,-1}, /* 45 */	2333	{23, 22, -1}, /* 45 */
2273	{45,47,23}, /* 46 */	2334	{45, 47, 23}, /* 46 */
2274	{23,24,-1}, /* 47 */	2335	{23, 24, -1}, /* 47 */
2275	{24,9,-1}}; /* 48 */	2336	{24, 9, -1}
		2337	}; /* 48 */
2276		2338
2277	/* Recursive routine to step back and see if we can	2339	/* Recursive routine to step back and see if we can
2278	* find a path to that monster that we found. If not,	2340	* find a path to that monster that we found. If not,
2279	* we don't bother going toward it. Returns 1 if we	2341	* we don't bother going toward it. Returns 1 if we
2280	* can see a direct way to get it	2342	* can see a direct way to get it
2281	* Modified to be map tile aware -.MSW	2343	* Modified to be map tile aware -.MSW
2282	*/	2344	*/
2283		2345	int
2284
2285	int can_see_monsterP(mapstruct *m, int x, int y,int dir) {	2346	can_see_monsterP (maptile *m, int x, int y, int dir)
		2347	{
2286	sint16 dx, dy;	2348	sint16 dx, dy;
2287	int mflags;	2349	int mflags;
2288		2350
		2351	if (dir < 0)
2289	if(dir<0) return 0; /* exit condition: invalid direction */	2352	return 0; /* exit condition: invalid direction */
2290		2353
2291	dx = x + freearr_x[dir];	2354	dx = x + freearr_x[dir];
2292	dy = y + freearr_y[dir];	2355	dy = y + freearr_y[dir];
2293		2356
2294	mflags = get_map_flags(m, &m, dx, dy, &dx, &dy);	2357	mflags = get_map_flags (m, &m, dx, dy, &dx, &dy);
2295		2358
2296	/* This functional arguably was incorrect before - it was	2359	/* This functional arguably was incorrect before - it was
2297	* checking for P_WALL - that was basically seeing if	2360	* checking for P_WALL - that was basically seeing if
2298	* we could move to the monster - this is being more	2361	* we could move to the monster - this is being more
2299	* literal on if we can see it. To know if we can actually	2362	* literal on if we can see it. To know if we can actually
2300	* move to the monster, we'd need the monster passed in or	2363	* move to the monster, we'd need the monster passed in or
2301	* at least its move type.	2364	* at least its move type.
2302	*/	2365	*/
2303	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW)) return 0;	2366	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW))
		2367	return 0;
2304		2368
2305	/* yes, can see. */	2369	/* yes, can see. */
2306	if(dir < 9) return 1;	2370	if (dir < 9)
		2371	return 1;
		2372
2307	return can_see_monsterP(m, x, y, reduction_dir[dir][0]) |	2373	return can_see_monsterP (m, x, y, reduction_dir[dir][0])
2308	can_see_monsterP(m,x,y, reduction_dir[dir][1]) |	2374	| can_see_monsterP (m, x, y, reduction_dir[dir][1])
2309	can_see_monsterP(m,x,y, reduction_dir[dir][2]);	2375	| can_see_monsterP (m, x, y, reduction_dir[dir][2]);
2310	}	2376	}
2311		2377
2312
2313
2314	/*	2378	/*
2315	* can_pick(picker, item): finds out if an object is possible to be	2379	* can_pick(picker, item): finds out if an object is possible to be
2316	* picked up by the picker. Returnes 1 if it can be	2380	* picked up by the picker. Returnes 1 if it can be
2317	* picked up, otherwise 0.	2381	* picked up, otherwise 0.
2318	*	2382	*
…		…
2320	* core dumps if they do.	2384	* core dumps if they do.
2321	*	2385	*
2322	* Add a check so we can't pick up invisible objects (0.93.8)	2386	* Add a check so we can't pick up invisible objects (0.93.8)
2323	*/	2387	*/
2324		2388
		2389	int
2325	int can_pick(const object *who, const object *item) {	2390	can_pick (const object *who, const object *item)
		2391	{
2326	return /*QUERY_FLAG(who,FLAG_WIZ)||*/	2392	return /*QUERY_FLAG(who,FLAG_WIZ)|| */
2327	(item->weight>0&&!QUERY_FLAG(item,FLAG_NO_PICK)&&	2393	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&
2328	!QUERY_FLAG(item,FLAG_ALIVE)&&!item->invisible &&	2394	!QUERY_FLAG (item, FLAG_ALIVE) && !item->invisible && (who->type == PLAYER || item->weight < who->weight / 3));
2329	(who->type==PLAYER||item->weight<who->weight/3));
2330	}	2395	}
2331
2332		2396
2333	/*	2397	/*
2334	* create clone from object to another	2398	* create clone from object to another
2335	*/	2399	*/
		2400	object *
2336	object *object_create_clone (object *asrc) {	2401	object_create_clone (object *asrc)
		2402	{
2337	object *dst = NULL,*tmp,*src,*part,*prev, *item;	2403	object *dst = 0, *tmp, *src, *part, *prev, *item;
2338		2404
2339	if(!asrc) return NULL;	2405	if (!asrc)
		2406	return 0;
		2407
2340	src = asrc;	2408	src = asrc;
2341	if(src->head)	2409	if (src->head)
2342	src = src->head;	2410	src = src->head;
2343		2411
2344	prev = NULL;	2412	prev = 0;
2345	for(part = src; part; part = part->more) {	2413	for (part = src; part; part = part->more)
2346	tmp = get_object();	2414	{
2347	copy_object(part,tmp);	2415	tmp = part->clone ();
2348	tmp->x -= src->x;	2416	tmp->x -= src->x;
2349	tmp->y -= src->y;	2417	tmp->y -= src->y;
		2418
2350	if(!part->head) {	2419	if (!part->head)
		2420	{
2351	dst = tmp;	2421	dst = tmp;
2352	tmp->head = NULL;	2422	tmp->head = 0;
		2423	}
2353	} else {	2424	else
2354	tmp->head = dst;	2425	tmp->head = dst;
2355	}	2426
2356	tmp->more = NULL;	2427	tmp->more = 0;
		2428
2357	if(prev)	2429	if (prev)
2358	prev->more = tmp;	2430	prev->more = tmp;
		2431
2359	prev = tmp;	2432	prev = tmp;
2360	}	2433	}
2361	/*** copy inventory ***/	2434
2362	for(item = src->inv; item; item = item->below) {	2435	for (item = src->inv; item; item = item->below)
2363	(void) insert_ob_in_ob(object_create_clone(item),dst);	2436	insert_ob_in_ob (object_create_clone (item), dst);
2364	}
2365		2437
2366	return dst;	2438	return dst;
2367	}
2368
2369	/* return true if the object was destroyed, 0 otherwise */
2370	int was_destroyed (const object *op, tag_t old_tag)
2371	{
2372	/* checking for FLAG_FREED isn't necessary, but makes this function more
2373	* robust */
2374	return op->count != old_tag || QUERY_FLAG (op, FLAG_FREED);
2375	}	2439	}
2376		2440
2377	/* GROS - Creates an object using a string representing its content. */	2441	/* GROS - Creates an object using a string representing its content. */
2378	/* Basically, we save the content of the string to a temp file, then call */	2442	/* Basically, we save the content of the string to a temp file, then call */
2379	/* load_object on it. I admit it is a highly inefficient way to make things, */	2443	/* load_object on it. I admit it is a highly inefficient way to make things, */
2380	/* but it was simple to make and allows reusing the load_object function. */	2444	/* but it was simple to make and allows reusing the load_object function. */
2381	/* Remember not to use load_object_str in a time-critical situation. */	2445	/* Remember not to use load_object_str in a time-critical situation. */
2382	/* Also remember that multiparts objects are not supported for now. */	2446	/* Also remember that multiparts objects are not supported for now. */
2383		2447
		2448	object *
2384	object* load_object_str(const char *obstr)	2449	load_object_str (const char *obstr)
2385	{	2450	{
2386	object *op;	2451	object *op;
2387	char filename[MAX_BUF];	2452	char filename[MAX_BUF];
		2453
2388	sprintf(filename,"%s/cfloadobstr2044",settings.tmpdir);	2454	sprintf (filename, "%s/cfloadobstr2044", settings.tmpdir);
2389		2455
2390	FILE *tempfile=fopen(filename,"w");	2456	FILE *tempfile = fopen (filename, "w");
		2457
2391	if (tempfile == NULL)	2458	if (tempfile == NULL)
2392	{	2459	{
2393	LOG(llevError,"Error - Unable to access load object temp file\n");	2460	LOG (llevError, "Error - Unable to access load object temp file\n");
2394	return NULL;	2461	return NULL;
2395	};	2462	}
		2463
2396	fprintf(tempfile,obstr);	2464	fprintf (tempfile, obstr);
2397	fclose(tempfile);	2465	fclose (tempfile);
2398		2466
2399	op=get_object();	2467	op = object::create ();
2400		2468
2401	object_thawer thawer (filename);	2469	object_thawer thawer (filename);
2402		2470
2403	if (thawer)	2471	if (thawer)
2404	load_object(thawer,op,0);	2472	load_object (thawer, op, 0);
2405		2473
2406	LOG(llevDebug," load str completed, object=%s\n", &op->name);	2474	LOG (llevDebug, " load str completed, object=%s\n", &op->name);
2407	CLEAR_FLAG(op,FLAG_REMOVED);	2475	CLEAR_FLAG (op, FLAG_REMOVED);
2408		2476
2409	return op;	2477	return op;
2410	}	2478	}
2411		2479
2412	/* This returns the first object in who's inventory that	2480	/* This returns the first object in who's inventory that
2413	* has the same type and subtype match.	2481	* has the same type and subtype match.
2414	* returns NULL if no match.	2482	* returns NULL if no match.
2415	*/	2483	*/
		2484	object *
2416	object *find_obj_by_type_subtype(const object *who, int type, int subtype)	2485	find_obj_by_type_subtype (const object *who, int type, int subtype)
2417	{	2486	{
2418	object *tmp;	2487	object *tmp;
2419		2488
2420	for (tmp=who->inv; tmp; tmp=tmp->below)	2489	for (tmp = who->inv; tmp; tmp = tmp->below)
2421	if (tmp->type == type && tmp->subtype == subtype) return tmp;	2490	if (tmp->type == type && tmp->subtype == subtype)
		2491	return tmp;
2422		2492
2423	return NULL;	2493	return NULL;
2424	}	2494	}
2425		2495
2426	/* If ob has a field named key, return the link from the list,	2496	/* If ob has a field named key, return the link from the list,
2427	* otherwise return NULL.	2497	* otherwise return NULL.
2428	*	2498	*
2429	* key must be a passed in shared string - otherwise, this won't	2499	* key must be a passed in shared string - otherwise, this won't
2430	* do the desired thing.	2500	* do the desired thing.
2431	*/	2501	*/
		2502	key_value *
2432	key_value * get_ob_key_link(const object * ob, const char * key) {	2503	get_ob_key_link (const object *ob, const char *key)
		2504	{
2433	key_value * link;	2505	key_value *link;
2434		2506
2435	for (link = ob->key_values; link != NULL; link = link->next) {	2507	for (link = ob->key_values; link != NULL; link = link->next)
2436	if (link->key == key) {	2508	if (link->key == key)
2437	return link;	2509	return link;
2438	}	2510
2439	}
2440
2441	return NULL;	2511	return NULL;
2442	}	2512	}
2443		2513
2444	/*	2514	/*
2445	* Returns the value of op has an extra_field for key, or NULL.	2515	* Returns the value of op has an extra_field for key, or NULL.
2446	*	2516	*
2447	* The argument doesn't need to be a shared string.	2517	* The argument doesn't need to be a shared string.
2448	*	2518	*
2449	* The returned string is shared.	2519	* The returned string is shared.
2450	*/	2520	*/
		2521	const char *
2451	const char * get_ob_key_value(const object * op, const char * const key) {	2522	get_ob_key_value (const object *op, const char *const key)
		2523	{
2452	key_value * link;	2524	key_value *link;
2453	const char * canonical_key;	2525	shstr_cmp canonical_key (key);
		2526
		2527	if (!canonical_key)
2454		2528	{
2455	canonical_key = shstr::find (key);
2456
2457	if (canonical_key == NULL) {
2458	/* 1. There being a field named key on any object	2529	/* 1. There being a field named key on any object
2459	* implies there'd be a shared string to find.	2530	* implies there'd be a shared string to find.
2460	* 2. Since there isn't, no object has this field.	2531	* 2. Since there isn't, no object has this field.
2461	* 3. Therefore, *this* object doesn't have this field.	2532	* 3. Therefore, *this* object doesn't have this field.
2462	*/	2533	*/
2463	return NULL;	2534	return 0;
2464	}	2535	}
2465		2536
2466	/* This is copied from get_ob_key_link() above -	2537	/* This is copied from get_ob_key_link() above -
2467	* only 4 lines, and saves the function call overhead.	2538	* only 4 lines, and saves the function call overhead.
2468	*/	2539	*/
2469	for (link = op->key_values; link != NULL; link = link->next) {	2540	for (link = op->key_values; link; link = link->next)
2470	if (link->key == canonical_key) {	2541	if (link->key == canonical_key)
2471	return link->value;	2542	return link->value;
2472	}	2543
2473	}	2544	return 0;
2474	return NULL;
2475	}	2545	}
2476		2546
2477		2547
2478	/*	2548	/*
2479	* Updates the canonical_key in op to value.	2549	* Updates the canonical_key in op to value.
…		…
2483	* Unless add_key is TRUE, it won't add fields, only change the value of existing	2553	* Unless add_key is TRUE, it won't add fields, only change the value of existing
2484	* keys.	2554	* keys.
2485	*	2555	*
2486	* Returns TRUE on success.	2556	* Returns TRUE on success.
2487	*/	2557	*/
		2558	int
2488	int set_ob_key_value_s(object * op, const shstr &canonical_key, const char * value, int add_key) {	2559	set_ob_key_value_s (object *op, const shstr & canonical_key, const char *value, int add_key)
		2560	{
		2561	key_value *
2489	key_value * field = NULL, *last=NULL;	2562	field = NULL, *last = NULL;
2490		2563
2491	for (field=op->key_values; field != NULL; field=field->next) {	2564	for (field = op->key_values; field != NULL; field = field->next)
		2565	{
2492	if (field->key != canonical_key) {	2566	if (field->key != canonical_key)
		2567	{
2493	last = field;	2568	last = field;
2494	continue;	2569	continue;
2495	}	2570	}
2496		2571
2497	if (value)	2572	if (value)
2498	field->value = value;	2573	field->value = value;
2499	else {	2574	else
		2575	{
2500	/* Basically, if the archetype has this key set,	2576	/* Basically, if the archetype has this key set,
2501	* we need to store the null value so when we save	2577	* we need to store the null value so when we save
2502	* it, we save the empty value so that when we load,	2578	* it, we save the empty value so that when we load,
2503	* we get this value back again.	2579	* we get this value back again.
2504	*/	2580	*/
2505	if (get_ob_key_link (&op->arch->clone, canonical_key))	2581	if (get_ob_key_link (&op->arch->clone, canonical_key))
2506	field->value = 0;	2582	field->value = 0;
		2583	else
		2584	{
		2585	if (last)
		2586	last->next = field->next;
2507	else	2587	else
2508	{
2509	if (last) last->next = field->next;
2510	else op->key_values = field->next;	2588	op->key_values = field->next;
2511		2589
2512	delete field;	2590	delete field;
2513	}	2591	}
2514	}	2592	}
2515	return TRUE;	2593	return TRUE;
2516	}	2594	}
2517	/* IF we get here, key doesn't exist */	2595	/* IF we get here, key doesn't exist */
2518		2596
2519	/* No field, we'll have to add it. */	2597	/* No field, we'll have to add it. */
		2598
		2599	if (!add_key)
2520		2600	{
2521	if (!add_key) {
2522	return FALSE;	2601	return FALSE;
2523	}	2602	}
2524	/* There isn't any good reason to store a null	2603	/* There isn't any good reason to store a null
2525	* value in the key/value list. If the archetype has	2604	* value in the key/value list. If the archetype has
2526	* this key, then we should also have it, so shouldn't	2605	* this key, then we should also have it, so shouldn't
2527	* be here. If user wants to store empty strings,	2606	* be here. If user wants to store empty strings,
2528	* should pass in ""	2607	* should pass in ""
2529	*/	2608	*/
2530	if (value == NULL) return TRUE;	2609	if (value == NULL)
2531
2532	field = new key_value;
2533
2534	field->key = canonical_key;
2535	field->value = value;
2536	/* Usual prepend-addition. */
2537	field->next = op->key_values;
2538	op->key_values = field;
2539
2540	return TRUE;	2610	return TRUE;
		2611
		2612	field = new key_value;
		2613
		2614	field->key = canonical_key;
		2615	field->value = value;
		2616	/* Usual prepend-addition. */
		2617	field->next = op->key_values;
		2618	op->key_values = field;
		2619
		2620	return TRUE;
2541	}	2621	}
2542		2622
2543	/*	2623	/*
2544	* Updates the key in op to value.	2624	* Updates the key in op to value.
2545	*	2625	*
…		…
2547	* and not add new ones.	2627	* and not add new ones.
2548	* In general, should be little reason FALSE is ever passed in for add_key	2628	* In general, should be little reason FALSE is ever passed in for add_key
2549	*	2629	*
2550	* Returns TRUE on success.	2630	* Returns TRUE on success.
2551	*/	2631	*/
		2632	int
2552	int set_ob_key_value(object * op, const char *key, const char * value, int add_key)	2633	set_ob_key_value (object *op, const char *key, const char *value, int add_key)
2553	{	2634	{
2554	shstr key_ (key);	2635	shstr key_ (key);
		2636
2555	return set_ob_key_value_s (op, key_, value, add_key);	2637	return set_ob_key_value_s (op, key_, value, add_key);
2556	}	2638	}
		2639
		2640	object::depth_iterator::depth_iterator (object *container)
		2641	: iterator_base (container)
		2642	{
		2643	while (item->inv)
		2644	item = item->inv;
		2645	}
		2646
		2647	void
		2648	object::depth_iterator::next ()
		2649	{
		2650	if (item->below)
		2651	{
		2652	item = item->below;
		2653
		2654	while (item->inv)
		2655	item = item->inv;
		2656	}
		2657	else
		2658	item = item->env;
		2659	}
		2660
		2661	// return a suitable string describing an objetc in enough detail to find it
		2662	const char *
		2663	object::debug_desc (char *info) const
		2664	{
		2665	char info2[256 * 3];
		2666	char *p = info;
		2667
		2668	p += snprintf (p, 256, "%d=\"%s%s%s\"",
		2669	count,
		2670	&name,
		2671	title ? " " : "",
		2672	title ? (const char *)title : "");
		2673
		2674	if (env)
		2675	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));
		2676
		2677	if (map)
		2678	p += snprintf (p, 256, "(on %s@%d+%d)", map->path, x, y);
		2679
		2680	return info;
		2681	}
		2682
		2683	const char *
		2684	object::debug_desc () const
		2685	{
		2686	static char info[256 * 3];
		2687	return debug_desc (info);
		2688	}
		2689

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