ViewVC Help

View File | Revision Log | Show Annotations | Download File

/cvs/deliantra/server/common/object.C

Comparing deliantra/server/common/object.C (file contents):
Revision 1.17 by root, Mon Sep 4 17:27:13 2006 UTC vs.
Revision 1.95 by root, Wed Dec 27 05:42:08 2006 UTC

1	/*
2	* static char *rcsid_object_c =
3	* "$Id: object.C,v 1.17 2006/09/04 17:27:13 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; 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	}	157	}
81		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, 1);
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 (is_freed)
590	if (is_removed) SET_FLAG (op, FLAG_REMOVED);	489	SET_FLAG (dst, FLAG_FREED);
591		490
		491	if (is_removed)
		492	SET_FLAG (dst, FLAG_REMOVED);
		493
592	if (op2->speed < 0)	494	if (speed < 0)
593	op->speed_left = op2->speed_left - RANDOM() % 200 / 100.0;	495	dst->speed_left = speed_left - RANDOM () % 200 / 100.0;
594		496
595	/* Copy over key_values, if any. */	497	/* Copy over key_values, if any. */
596	if (op2->key_values != NULL)	498	if (key_values)
597	{	499	{
598	key_value *tail = NULL;	500	key_value *tail = 0;
599	key_value *i;	501	key_value *i;
600		502
601	op->key_values = NULL;	503	dst->key_values = 0;
602		504
603	for (i = op2->key_values; i != NULL; i = i->next)	505	for (i = key_values; i; i = i->next)
604	{	506	{
605	key_value *new_link = new key_value;	507	key_value *new_link = new key_value;
606		508
607	new_link->next = NULL;	509	new_link->next = 0;
608	new_link->key = i->key;	510	new_link->key = i->key;
609	new_link->value = i->value;	511	new_link->value = i->value;
610		512
611	/* Try and be clever here, too. */	513	/* Try and be clever here, too. */
612	if (op->key_values == NULL)	514	if (!dst->key_values)
613	{	515	{
614	op->key_values = new_link;	516	dst->key_values = new_link;
615	tail = new_link;	517	tail = new_link;
616	}	518	}
617	else	519	else
618	{	520	{
619	tail->next = new_link;	521	tail->next = new_link;
620	tail = new_link;	522	tail = new_link;
621	}	523	}
622	}	524	}
623	}	525	}
624		526
625	update_ob_speed (op);	527	dst->set_speed (dst->speed);
626	}	528	}
627		529
628	/*	530	object *
629	* get_object() grabs an object from the list of unused objects, makes	531	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	{	532	{
636	object *op = new object;	533	object *neu = create ();
637		534	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;	535	return neu;
658	}	536	}
659		537
660	/*	538	/*
661	* If an object with the IS_TURNABLE() flag needs to be turned due	539	* If an object with the IS_TURNABLE() flag needs to be turned due
662	* to the closest player being on the other side, this function can	540	* to the closest player being on the other side, this function can
663	* be called to update the face variable, _and_ how it looks on the map.	541	* be called to update the face variable, _and_ how it looks on the map.
664	*/	542	*/
665		543
		544	void
666	void update_turn_face(object *op) {	545	update_turn_face (object *op)
		546	{
667	if(!QUERY_FLAG(op,FLAG_IS_TURNABLE)||op->arch==NULL)	547	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || op->arch == NULL)
668	return;	548	return;
669	SET_ANIMATION(op, op->direction);	549	SET_ANIMATION (op, op->direction);
670	update_object(op,UP_OBJ_FACE);	550	update_object (op, UP_OBJ_FACE);
671	}	551	}
672		552
673	/*	553	/*
674	* Updates the speed of an object. If the speed changes from 0 to another	554	* Updates the speed of an object. If the speed changes from 0 to another
675	* value, or vice versa, then add/remove the object from the active list.	555	* value, or vice versa, then add/remove the object from the active list.
676	* This function needs to be called whenever the speed of an object changes.	556	* This function needs to be called whenever the speed of an object changes.
677	*/	557	*/
678		558	void
679	void update_ob_speed(object *op) {	559	object::set_speed (float speed)
		560	{
680	extern int arch_init;	561	extern int arch_init;
681		562
682	/* No reason putting the archetypes objects on the speed list,	563	/* No reason putting the archetypes objects on the speed list,
683	* since they never really need to be updated.	564	* since they never really need to be updated.
684	*/	565	*/
685		566	if (flag [FLAG_FREED] && speed)
686	if (QUERY_FLAG(op, FLAG_FREED) && op->speed) {	567	{
687	LOG(llevError,"Object %s is freed but has speed.\n", &op->name);	568	LOG (llevError, "Object %s is freed but has speed.\n", &name);
688	#ifdef MANY_CORES
689	abort();
690	#else
691	op->speed = 0;	569	speed = 0;
692	#endif
693	}	570	}
		571
		572	this->speed = speed;
		573
694	if (arch_init) {	574	if (arch_init)
		575	return;
		576
		577	if (FABS (speed) > MIN_ACTIVE_SPEED)
		578	{
		579	/* If already on active list, don't do anything */
		580	if (active_next || active_prev || this == active_objects)
695	return;	581	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		582
702	/* process_events() expects us to insert the object at the beginning	583	/* process_events() expects us to insert the object at the beginning
703	* of the list. */	584	* of the list. */
704	op->active_next = active_objects;	585	active_next = active_objects;
		586
705	if (op->active_next!=NULL)	587	if (active_next)
706	op->active_next->active_prev = op;	588	active_next->active_prev = this;
		589
707	active_objects = op;	590	active_objects = this;
		591	}
		592	else
708	}	593	{
709	else {
710	/* If not on the active list, nothing needs to be done */	594	/* If not on the active list, nothing needs to be done */
711	if (!op->active_next && !op->active_prev && op!=active_objects)	595	if (!active_next && !active_prev && this != active_objects)
712	return;	596	return;
713		597
714	if (op->active_prev==NULL) {	598	if (!active_prev)
		599	{
715	active_objects = op->active_next;	600	active_objects = active_next;
		601
716	if (op->active_next!=NULL)	602	if (active_next)
717	op->active_next->active_prev = NULL;	603	active_next->active_prev = 0;
718	}	604	}
719	else {	605	else
		606	{
720	op->active_prev->active_next = op->active_next;	607	active_prev->active_next = active_next;
		608
721	if (op->active_next)	609	if (active_next)
722	op->active_next->active_prev = op->active_prev;	610	active_next->active_prev = active_prev;
723	}	611	}
		612
724	op->active_next = NULL;	613	active_next = 0;
725	op->active_prev = NULL;	614	active_prev = 0;
726	}	615	}
727	}	616	}
728		617
729	/* This function removes object 'op' from the list of active	618	/* This function removes object 'op' from the list of active
730	* objects.	619	* objects.
…		…
732	* reference maps where you don't want an object that isn't	621	* reference maps where you don't want an object that isn't
733	* in play chewing up cpu time getting processed.	622	* in play chewing up cpu time getting processed.
734	* The reverse of this is to call update_ob_speed, which	623	* The reverse of this is to call update_ob_speed, which
735	* will do the right thing based on the speed of the object.	624	* will do the right thing based on the speed of the object.
736	*/	625	*/
		626	void
737	void remove_from_active_list(object *op)	627	remove_from_active_list (object *op)
738	{	628	{
739	/* If not on the active list, nothing needs to be done */	629	/* If not on the active list, nothing needs to be done */
740	if (!op->active_next && !op->active_prev && op!=active_objects)	630	if (!op->active_next && !op->active_prev && op != active_objects)
741	return;	631	return;
742		632
743	if (op->active_prev==NULL) {	633	if (op->active_prev == NULL)
		634	{
744	active_objects = op->active_next;	635	active_objects = op->active_next;
745	if (op->active_next!=NULL)	636	if (op->active_next != NULL)
746	op->active_next->active_prev = NULL;	637	op->active_next->active_prev = NULL;
		638	}
		639	else
747	}	640	{
748	else {
749	op->active_prev->active_next = op->active_next;	641	op->active_prev->active_next = op->active_next;
750	if (op->active_next)	642	if (op->active_next)
751	op->active_next->active_prev = op->active_prev;	643	op->active_next->active_prev = op->active_prev;
752	}	644	}
753	op->active_next = NULL;	645	op->active_next = NULL;
754	op->active_prev = NULL;	646	op->active_prev = NULL;
755	}	647	}
756		648
757	/*	649	/*
758	* update_object() updates the array which represents the map.	650	* update_object() updates the the map.
759	* It takes into account invisible objects (and represent squares covered	651	* It takes into account invisible objects (and represent squares covered
760	* by invisible objects by whatever is below them (unless it's another	652	* by invisible objects by whatever is below them (unless it's another
761	* invisible object, etc...)	653	* invisible object, etc...)
762	* If the object being updated is beneath a player, the look-window	654	* If the object being updated is beneath a player, the look-window
763	* of that player is updated (this might be a suboptimal way of	655	* of that player is updated (this might be a suboptimal way of
764	* updating that window, though, since update_object() is called _often_)	656	* updating that window, though, since update_object() is called _often_)
765	*	657	*
766	* action is a hint of what the caller believes need to be done.	658	* action is a hint of what the caller believes need to be done.
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:	659	* current action are:
772	* UP_OBJ_INSERT: op was inserted	660	* UP_OBJ_INSERT: op was inserted
773	* UP_OBJ_REMOVE: op was removed	661	* UP_OBJ_REMOVE: op was removed
774	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update	662	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update
775	* as that is easier than trying to look at what may have changed.	663	* as that is easier than trying to look at what may have changed.
776	* UP_OBJ_FACE: only the objects face has changed.	664	* UP_OBJ_FACE: only the objects face has changed.
777	*/	665	*/
778		666	void
779	void update_object(object *op, int action) {	667	update_object (object *op, int action)
780	int update_now=0, flags;	668	{
781	MoveType move_on, move_off, move_block, move_slow;	669	MoveType move_on, move_off, move_block, move_slow;
782		670
783	if (op == NULL) {	671	if (op == NULL)
		672	{
784	/* this should never happen */	673	/* this should never happen */
785	LOG(llevDebug,"update_object() called for NULL object.\n");	674	LOG (llevDebug, "update_object() called for NULL object.\n");
786	return;	675	return;
787	}
788		676	}
789	if(op->env!=NULL) {	677
		678	if (op->env)
		679	{
790	/* Animation is currently handled by client, so nothing	680	/* Animation is currently handled by client, so nothing
791	* to do in this case.	681	* to do in this case.
792	*/	682	*/
793	return;	683	return;
794	}	684	}
795		685
796	/* If the map is saving, don't do anything as everything is	686	/* If the map is saving, don't do anything as everything is
797	* going to get freed anyways.	687	* going to get freed anyways.
798	*/	688	*/
799	if (!op->map || op->map->in_memory == MAP_SAVING) return;	689	if (!op->map || op->map->in_memory == MAP_SAVING)
800		690	return;
		691
801	/* make sure the object is within map boundaries */	692	/* make sure the object is within map boundaries */
802	if (op->x < 0 || op->x >= MAP_WIDTH(op->map) ||	693	if (op->x < 0 || op->x >= op->map->width || op->y < 0 || op->y >= op->map->height)
803	op->y < 0 || op->y >= MAP_HEIGHT(op->map)) {	694	{
804	LOG(llevError,"update_object() called for object out of map!\n");	695	LOG (llevError, "update_object() called for object out of map!\n");
805	#ifdef MANY_CORES	696	#ifdef MANY_CORES
806	abort();	697	abort ();
807	#endif	698	#endif
808	return;	699	return;
809	}
810		700	}
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		701
		702	mapspace &m = op->ms ();
		703
		704	if (m.flags_ & P_NEED_UPDATE)
		705	/* nop */;
818	if (action == UP_OBJ_INSERT) {	706	else if (action == UP_OBJ_INSERT)
		707	{
		708	// this is likely overkill, TODO: revisit (schmorp)
819	if (QUERY_FLAG(op, FLAG_BLOCKSVIEW) && !(flags & P_BLOCKSVIEW))	709	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))	710	|| (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(m.flags_ & P_NO_MAGIC))
823	update_now=1;	711	|| (op->type == PLAYER && !(m.flags_ & P_PLAYER))
824		712	|| (op->type == SAFE_GROUND && !(m.flags_ & P_SAFE))
		713	|| (QUERY_FLAG (op, FLAG_ALIVE) && !(m.flags_ & P_IS_ALIVE))
825	if (QUERY_FLAG(op, FLAG_DAMNED) && !(flags & P_NO_CLERIC))	714	|| (QUERY_FLAG (op, FLAG_DAMNED) && !(m.flags_ & P_NO_CLERIC))
826	update_now=1;	715	|| (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;	716	|| (m.move_off | op->move_off ) != m.move_off
		717	|| (m.move_slow | op->move_slow) != m.move_slow
833	/* This isn't perfect, but I don't expect a lot of objects to	718	/* This isn't perfect, but I don't expect a lot of objects to
834	* to have move_allow right now.	719	* to have move_allow right now.
835	*/	720	*/
836	if (((move_block | op->move_block) & ~op->move_allow) != move_block)	721	|| ((m.move_block | op->move_block) & ~op->move_allow) != m.move_block
837	update_now=1;	722	|| 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;	723	m.flags_ = P_NEED_UPDATE;
839	}	724	}
840	/* if the object is being removed, we can't make intelligent	725	/* if the object is being removed, we can't make intelligent
841	* decisions, because remove_ob can't really pass the object	726	* decisions, because remove_ob can't really pass the object
842	* that is being removed.	727	* that is being removed.
843	*/	728	*/
844	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE) {	729	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)
845	update_now=1;	730	m.flags_ = P_NEED_UPDATE;
846	} else if (action == UP_OBJ_FACE) {	731	else if (action == UP_OBJ_FACE)
847	/* Nothing to do for that case */	732	/* Nothing to do for that case */ ;
848	}
849	else {	733	else
850	LOG(llevError,"update_object called with invalid action: %d\n", action);	734	LOG (llevError, "update_object called with invalid action: %d\n", action);
851	}
852		735
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)	736	if (op->more)
859	update_object(op->more, action);	737	update_object (op->more, action);
860	}	738	}
861		739
		740	object::vector object::objects; // not yet used
		741	object *object::first;
862		742
		743	object::object ()
		744	{
		745	SET_FLAG (this, FLAG_REMOVED);
		746
		747	expmul = 1.0;
		748	face = blank_face;
		749	}
		750
		751	object::~object ()
		752	{
		753	free_key_values (this);
		754	}
		755
		756	void object::link ()
		757	{
		758	count = ++ob_count;
		759	uuid = gen_uuid ();
		760
		761	prev = 0;
		762	next = object::first;
		763
		764	if (object::first)
		765	object::first->prev = this;
		766
		767	object::first = this;
		768	}
		769
		770	void object::unlink ()
		771	{
		772	if (this == object::first)
		773	object::first = next;
		774
		775	/* Remove this object from the list of used objects */
		776	if (prev) prev->next = next;
		777	if (next) next->prev = prev;
		778
		779	prev = 0;
		780	next = 0;
		781	}
		782
863	/*	783	/*
864	* free_object() frees everything allocated by an object, removes	784	* Remove and free all objects in the inventory of the given object.
865	* it from the list of used objects, and puts it on the list of	785	* object.c ?
866	* free objects. The IS_FREED() flag is set in the object.
867	* The object must have been removed by remove_ob() first for
868	* this function to succeed.
869	*	786	*/
870	* If free_inventory is set, free inventory as well. Else drop items in
871	* inventory to the ground.
872	*/
873
874	void	787	void
875	free_object (object * ob)	788	object::destroy_inv (bool drop_to_ground)
876	{	789	{
877	free_object2 (ob, 0);	790	// need to check first, because the checks below might segfault
		791	// as we might be on an invalid mapspace and crossfire code
		792	// is too buggy to ensure that the inventory is empty.
		793	// corollary: if you create arrows etc. with stuff in tis inventory,
		794	// cf will crash below with off-map x and y
		795	if (!inv)
		796	return;
		797
		798	/* Only if the space blocks everything do we not process -
		799	* if some form of movement is allowed, let objects
		800	* drop on that space.
		801	*/
		802	if (!drop_to_ground
		803	|| !map
		804	|| map->in_memory != MAP_IN_MEMORY
		805	|| ms ().move_block == MOVE_ALL)
		806	{
		807	while (inv)
		808	{
		809	inv->destroy_inv (drop_to_ground);
		810	inv->destroy ();
		811	}
		812	}
		813	else
		814	{ /* Put objects in inventory onto this space */
		815	while (inv)
		816	{
		817	object *op = inv;
		818
		819	if (op->flag [FLAG_STARTEQUIP]
		820	|| op->flag [FLAG_NO_DROP]
		821	|| op->type == RUNE
		822	|| op->type == TRAP
		823	|| op->flag [FLAG_IS_A_TEMPLATE])
		824	op->destroy ();
		825	else
		826	map->insert (op, x, y);
		827	}
		828	}
		829	}
		830
		831	object *object::create ()
		832	{
		833	object *op = new object;
		834	op->link ();
		835	return op;
878	}	836	}
879		837
880	void	838	void
881	free_object2 (object * ob, int free_inventory)	839	object::do_destroy ()
882	{	840	{
883	object *tmp, *op;	841	if (flag [FLAG_IS_LINKED])
		842	remove_button_link (this);
884		843
885	if (!QUERY_FLAG (ob, FLAG_REMOVED))	844	if (flag [FLAG_FRIENDLY])
886	{
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
894	if (QUERY_FLAG (ob, FLAG_FRIENDLY))
895	{
896	LOG (llevMonster, "Warning: tried to free friendly object.\n");
897	remove_friendly_object (ob);	845	remove_friendly_object (this);
898	}
899		846
900	if (QUERY_FLAG (ob, FLAG_FREED))	847	if (!flag [FLAG_REMOVED])
901	{	848	remove ();
902	dump_object (ob);	849
903	LOG (llevError, "Trying to free freed object.\n%s\n", errmsg);	850	if (flag [FLAG_FREED])
904	return;	851	return;
905	}
906		852
907	if (ob->more != NULL)	853	set_speed (0);
		854
		855	flag [FLAG_FREED] = 1;
		856
		857	attachable::do_destroy ();
		858
		859	destroy_inv (true);
		860	unlink ();
		861
		862	// hack to ensure that freed objects still have a valid map
		863	{
		864	static maptile *freed_map; // freed objects are moved here to avoid crashes
		865
		866	if (!freed_map)
908	{	867	{
909	free_object2 (ob->more, free_inventory);	868	freed_map = new maptile;
910	ob->more = NULL;	869
		870	freed_map->name = "/internal/freed_objects_map";
		871	freed_map->width = 3;
		872	freed_map->height = 3;
		873
		874	freed_map->allocate ();
911	}	875	}
912		876
913	if (ob->inv)	877	map = freed_map;
914	{	878	x = 1;
915	/* Only if the space blocks everything do we not process -	879	y = 1;
916	* if some form of movement is allowed, let objects	880	}
917	* drop on that space.
918	*/
919	if (free_inventory || ob->map == NULL
920	|| ob->map->in_memory != MAP_IN_MEMORY
921	|| (GET_MAP_MOVE_BLOCK (ob->map, ob->x, ob->y) == MOVE_ALL))
922	{
923	op = ob->inv;
924		881
925	while (op != NULL)	882	head = 0;
		883
		884	if (more)
926	{	885	{
927	tmp = op->below;	886	more->destroy ();
928	remove_ob (op);	887	more = 0;
929	free_object2 (op, free_inventory);
930	op = tmp;
931	}	888	}
932	}
933	else
934	{ /* Put objects in inventory onto this space */
935	op = ob->inv;
936		889
937	while (op != NULL)	890	// clear those pointers that likely might have circular references to us
938	{	891	owner = 0;
939	tmp = op->below;	892	enemy = 0;
940	remove_ob (op);	893	attacked_by = 0;
941		894
942	if (QUERY_FLAG (op, FLAG_STARTEQUIP)	895	// only relevant for players(?), but make sure of it anyways
943	|| QUERY_FLAG (op, FLAG_NO_DROP) || op->type == RUNE	896	contr = 0;
944	|| op->type == TRAP || QUERY_FLAG (op, FLAG_IS_A_TEMPLATE))	897	}
945	free_object (op);
946	else
947	{
948	op->x = ob->x;
949	op->y = ob->y;
950	insert_ob_in_map (op, ob->map, NULL, 0); /* Insert in same map as the envir */
951	}
952		898
953	op = tmp;	899	void
954	}	900	object::destroy (bool destroy_inventory)
955	}	901	{
956	}	902	if (destroyed ())
		903	return;
957		904
958	/* Remove object from the active list */	905	if (destroy_inventory)
959	ob->speed = 0;	906	destroy_inv (false);
960	update_ob_speed (ob);
961		907
962	SET_FLAG (ob, FLAG_FREED);	908	attachable::destroy ();
963	ob->count = 0;
964
965	/* Remove this object from the list of used objects */
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	}	909	}
989		910
990	/*	911	/*
991	* sub_weight() recursively (outwards) subtracts a number from the	912	* sub_weight() recursively (outwards) subtracts a number from the
992	* weight of an object (and what is carried by it's environment(s)).	913	* weight of an object (and what is carried by it's environment(s)).
993	*/	914	*/
994		915	void
995	void sub_weight (object *op, signed long weight) {	916	sub_weight (object *op, signed long weight)
		917	{
996	while (op != NULL) {	918	while (op != NULL)
		919	{
997	if (op->type == CONTAINER) {	920	if (op->type == CONTAINER)
998	weight=(signed long)(weight*(100-op->stats.Str)/100);	921	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
999	}	922
1000	op->carrying-=weight;	923	op->carrying -= weight;
1001	op = op->env;	924	op = op->env;
1002	}	925	}
1003	}	926	}
1004		927
1005	/* remove_ob(op):	928	/* op->remove ():
1006	* This function removes the object op from the linked list of objects	929	* This function removes the object op from the linked list of objects
1007	* which it is currently tied to. When this function is done, the	930	* which it is currently tied to. When this function is done, the
1008	* object will have no environment. If the object previously had an	931	* object will have no environment. If the object previously had an
1009	* environment, the x and y coordinates will be updated to	932	* environment, the x and y coordinates will be updated to
1010	* the previous environment.	933	* the previous environment.
1011	* Beware: This function is called from the editor as well!	934	* Beware: This function is called from the editor as well!
1012	*/	935	*/
1013		936	void
1014	void remove_ob(object *op) {	937	object::remove ()
		938	{
1015	object *tmp,*last=NULL;	939	object *tmp, *last = 0;
1016	object *otmp;	940	object *otmp;
1017	tag_t tag;
1018	int check_walk_off;
1019	mapstruct *m;
1020	sint16 x,y;
1021
1022		941
1023	if(QUERY_FLAG(op,FLAG_REMOVED)) {	942	if (QUERY_FLAG (this, FLAG_REMOVED))
1024	dump_object(op);	943	return;
1025	LOG(llevError,"Trying to remove removed object.\n%s\n",errmsg);
1026		944
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);	945	SET_FLAG (this, FLAG_REMOVED);
		946	INVOKE_OBJECT (REMOVE, this);
1043		947
		948	if (more)
		949	more->remove ();
		950
1044	/*	951	/*
1045	* In this case, the object to be removed is in someones	952	* In this case, the object to be removed is in someones
1046	* inventory.	953	* inventory.
1047	*/	954	*/
1048	if(op->env!=NULL) {	955	if (env)
		956	{
1049	if(op->nrof)	957	if (nrof)
1050	sub_weight(op->env, op->weight*op->nrof);	958	sub_weight (env, weight * nrof);
1051	else	959	else
1052	sub_weight(op->env, op->weight+op->carrying);	960	sub_weight (env, weight + carrying);
1053		961
1054	/* NO_FIX_PLAYER is set when a great many changes are being	962	/* NO_FIX_PLAYER is set when a great many changes are being
1055	* made to players inventory. If set, avoiding the call	963	* made to players inventory. If set, avoiding the call
1056	* to save cpu time.	964	* to save cpu time.
1057	*/	965	*/
1058	if ((otmp=is_player_inv(op->env))!=NULL && otmp->contr &&	966	if ((otmp = in_player ()) && otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1059	!QUERY_FLAG(otmp,FLAG_NO_FIX_PLAYER))	967	otmp->update_stats ();
1060	fix_player(otmp);
1061		968
1062	if(op->above!=NULL)	969	if (above != NULL)
1063	op->above->below=op->below;	970	above->below = below;
1064	else	971	else
1065	op->env->inv=op->below;	972	env->inv = below;
1066		973
1067	if(op->below!=NULL)	974	if (below != NULL)
1068	op->below->above=op->above;	975	below->above = above;
1069		976
1070	/* we set up values so that it could be inserted into	977	/* we set up values so that it could be inserted into
1071	* the map, but we don't actually do that - it is up	978	* the map, but we don't actually do that - it is up
1072	* to the caller to decide what we want to do.	979	* to the caller to decide what we want to do.
		980	*/
		981	x = env->x, y = env->y;
		982	map = env->map;
		983	above = 0, below = 0;
		984	env = 0;
		985	}
		986	else if (map)
		987	{
		988	/* Re did the following section of code - it looks like it had
		989	* lots of logic for things we no longer care about
		990	*/
		991
		992	/* link the object above us */
		993	if (above)
		994	above->below = below;
		995	else
		996	map->at (x, y).top = below; /* we were top, set new top */
		997
		998	/* Relink the object below us, if there is one */
		999	if (below)
		1000	below->above = above;
		1001	else
		1002	{
		1003	/* Nothing below, which means we need to relink map object for this space
		1004	* use translated coordinates in case some oddness with map tiling is
		1005	* evident
1073	*/	1006	*/
1074	op->x=op->env->x,op->y=op->env->y;	1007	if (GET_MAP_OB (map, x, y) != this)
1075	op->map=op->env->map;	1008	{
1076	op->above=NULL,op->below=NULL;	1009	char *dump = dump_object (this);
1077	op->env=NULL;	1010	LOG (llevError,
		1011	"remove_ob: GET_MAP_OB does not return object to be removed even though it appears to be on the bottom?\n%s\n", dump);
		1012	free (dump);
		1013	dump = dump_object (GET_MAP_OB (map, x, y));
		1014	LOG (llevError, "%s\n", dump);
		1015	free (dump);
		1016	}
		1017
		1018	map->at (x, y).bot = above; /* goes on above it. */
		1019	}
		1020
		1021	above = 0;
		1022	below = 0;
		1023
		1024	if (map->in_memory == MAP_SAVING)
1078	return;	1025	return;
1079	}
1080		1026
1081	/* If we get here, we are removing it from a map */	1027	int check_walk_off = !flag [FLAG_NO_APPLY];
1082	if (op->map == NULL) return;
1083		1028
1084	x = op->x;	1029	for (tmp = map->at (x, y).bot; tmp; tmp = tmp->above)
1085	y = op->y;	1030	{
1086	m = get_map_from_coord(op->map, &x, &y);	1031	/* No point updating the players look faces if he is the object
1087		1032	* being removed.
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	*/	1033	*/
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		1034
1102	/* Re did the following section of code - it looks like it had	1035	if (tmp->type == PLAYER && tmp != this)
1103	* lots of logic for things we no longer care about	1036	{
1104	*/	1037	/* If a container that the player is currently using somehow gets
1105		1038	* removed (most likely destroyed), update the player view
1106	/* link the object above us */	1039	* appropriately.
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	*/	1040	*/
1120	if(GET_MAP_OB(m,x,y)!=op) {	1041	if (tmp->container == this)
1121	dump_object(op);	1042	{
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);	1043	flag [FLAG_APPLIED] = 0;
1123	dump_object(GET_MAP_OB(m,x,y));	1044	tmp->container = 0;
1124	LOG(llevError,"%s\n",errmsg);	1045	}
		1046
		1047	if (tmp->contr->ns)
		1048	tmp->contr->ns->floorbox_update ();
		1049	}
		1050
		1051	/* See if player moving off should effect something */
		1052	if (check_walk_off
		1053	&& ((move_type & tmp->move_off)
		1054	&& (move_type & ~tmp->move_off & ~tmp->move_block) == 0))
		1055	{
		1056	move_apply (tmp, this, 0);
		1057
		1058	if (destroyed ())
		1059	LOG (llevError, "BUG: remove_ob(): name %s, destroyed leaving object\n", tmp->debug_desc ());
		1060	}
		1061
		1062	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */
		1063
		1064	if (tmp->above == tmp)
		1065	tmp->above = 0;
		1066
		1067	last = tmp;
1125	}	1068	}
1126	SET_MAP_OB(m,x,y,op->above); /* goes on above it. */
1127	}
1128	op->above=NULL;
1129	op->below=NULL;
1130		1069
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);
1136	for(tmp=GET_MAP_OB(m,x,y);tmp!=NULL;tmp=tmp->above) {
1137	/* No point updating the players look faces if he is the object
1138	* being removed.
1139	*/
1140
1141	if(tmp->type==PLAYER && tmp!=op) {
1142	/* If a container that the player is currently using somehow gets
1143	* removed (most likely destroyed), update the player view
1144	* appropriately.
1145	*/
1146	if (tmp->container==op) {
1147	CLEAR_FLAG(op, FLAG_APPLIED);
1148	tmp->container=NULL;
1149	}
1150	tmp->contr->socket.update_look=1;
1151	}
1152	/* See if player moving off should effect something */
1153	if (check_walk_off && ((op->move_type & tmp->move_off) &&
1154	(op->move_type & ~tmp->move_off & ~tmp->move_block)==0)) {
1155
1156	move_apply(tmp, op, NULL);
1157	if (was_destroyed (op, tag)) {
1158	LOG (llevError, "BUG: remove_ob(): name %s, archname %s destroyed "
1159	"leaving object\n", &tmp->name, &tmp->arch->name);
1160	}
1161	}
1162
1163	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */
1164
1165	if(tmp->above == tmp)
1166	tmp->above = NULL;
1167	last=tmp;
1168	}
1169	/* last == NULL of there are no objects on this space */	1070	/* last == NULL of there are no objects on this space */
1170	if (last==NULL) {	1071	if (!last)
1171	/* set P_NEED_UPDATE, otherwise update_position will complain. In theory,	1072	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	1073	else
1180	update_object(last, UP_OBJ_REMOVE);	1074	update_object (last, UP_OBJ_REMOVE);
1181		1075
1182	if(QUERY_FLAG(op,FLAG_BLOCKSVIEW)|| (op->glow_radius != 0))	1076	if (flag [FLAG_BLOCKSVIEW] || glow_radius)
1183	update_all_los(op->map, op->x, op->y);	1077	update_all_los (map, x, y);
1184		1078	}
1185	}	1079	}
1186		1080
1187	/*	1081	/*
1188	* merge_ob(op,top):	1082	* merge_ob(op,top):
1189	*	1083	*
1190	* This function goes through all objects below and including top, and	1084	* This function goes through all objects below and including top, and
1191	* merges op to the first matching object.	1085	* merges op to the first matching object.
1192	* If top is NULL, it is calculated.	1086	* If top is NULL, it is calculated.
1193	* Returns pointer to object if it succeded in the merge, otherwise NULL	1087	* Returns pointer to object if it succeded in the merge, otherwise NULL
1194	*/	1088	*/
1195		1089	object *
1196	object *merge_ob(object *op, object *top) {	1090	merge_ob (object *op, object *top)
		1091	{
1197	if(!op->nrof)	1092	if (!op->nrof)
1198	return 0;	1093	return 0;
1199	if(top==NULL)	1094
		1095	if (top)
1200	for(top=op;top!=NULL&&top->above!=NULL;top=top->above);	1096	for (top = op; top && top->above; top = top->above)
		1097	;
		1098
1201	for(;top!=NULL;top=top->below) {	1099	for (; top; top = top->below)
		1100	{
1202	if(top==op)	1101	if (top == op)
1203	continue;	1102	continue;
1204	if (CAN_MERGE(op,top))	1103
1205	{	1104	if (object::can_merge (op, top))
		1105	{
1206	top->nrof+=op->nrof;	1106	top->nrof += op->nrof;
		1107
1207	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/	1108	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/
1208	op->weight = 0; /* Don't want any adjustements now */	1109	op->weight = 0; /* Don't want any adjustements now */
1209	remove_ob(op);	1110	op->destroy ();
1210	free_object(op);
1211	return top;	1111	return top;
1212	}	1112	}
1213	}	1113	}
		1114
1214	return NULL;	1115	return 0;
1215	}	1116	}
1216		1117
1217	/*	1118	/*
1218	* same as insert_ob_in_map except it handle separate coordinates and do a clean	1119	* same as insert_ob_in_map except it handle separate coordinates and do a clean
1219	* job preparing multi-part monsters	1120	* job preparing multi-part monsters
1220	*/	1121	*/
		1122	object *
1221	object *insert_ob_in_map_at(object *op, mapstruct *m, object *originator, int flag, int x, int y){	1123	insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)
1222	object* tmp;	1124	{
1223	if (op->head)	1125	for (object *tmp = op->head_ (); tmp; tmp = tmp->more)
1224	op=op->head;	1126	{
1225	for (tmp=op;tmp;tmp=tmp->more){
1226	tmp->x=x+tmp->arch->clone.x;	1127	tmp->x = x + tmp->arch->clone.x;
1227	tmp->y=y+tmp->arch->clone.y;	1128	tmp->y = y + tmp->arch->clone.y;
1228	}	1129	}
		1130
1229	return insert_ob_in_map (op, m, originator, flag);	1131	return insert_ob_in_map (op, m, originator, flag);
1230	}	1132	}
1231		1133
1232	/*	1134	/*
1233	* insert_ob_in_map (op, map, originator, flag):	1135	* insert_ob_in_map (op, map, originator, flag):
1234	* This function inserts the object in the two-way linked list	1136	* This function inserts the object in the two-way linked list
…		…
1247	* Return value:	1149	* Return value:
1248	* new object if 'op' was merged with other object	1150	* new object if 'op' was merged with other object
1249	* NULL if 'op' was destroyed	1151	* NULL if 'op' was destroyed
1250	* just 'op' otherwise	1152	* just 'op' otherwise
1251	*/	1153	*/
1252		1154	object *
1253	object *insert_ob_in_map (object *op, mapstruct *m, object *originator, int flag)	1155	insert_ob_in_map (object *op, maptile *m, object *originator, int flag)
1254	{	1156	{
1255	object *tmp, *top, *floor=NULL;	1157	object *tmp, *top, *floor = NULL;
1256	sint16 x,y;	1158	sint16 x, y;
1257		1159
1258	if (QUERY_FLAG (op, FLAG_FREED)) {	1160	if (QUERY_FLAG (op, FLAG_FREED))
		1161	{
1259	LOG (llevError, "Trying to insert freed object!\n");	1162	LOG (llevError, "Trying to insert freed object!\n");
1260	return NULL;	1163	return NULL;
		1164	}
		1165
		1166	if (m == NULL)
1261	}	1167	{
1262	if(m==NULL) {
1263	dump_object(op);	1168	char *dump = dump_object (op);
1264	LOG(llevError,"Trying to insert in null-map!\n%s\n",errmsg);	1169	LOG (llevError, "Trying to insert in null-map!\n%s\n", dump);
		1170	free (dump);
1265	return op;	1171	return op;
1266	}	1172	}
		1173
1267	if(out_of_map(m,op->x,op->y)) {	1174	if (out_of_map (m, op->x, op->y))
		1175	{
1268	dump_object(op);	1176	char *dump = dump_object (op);
1269	LOG(llevError,"Trying to insert object outside the map.\n%s\n", errmsg);	1177	LOG (llevError, "Trying to insert object outside the map.\n%s\n", dump);
1270	#ifdef MANY_CORES	1178	#ifdef MANY_CORES
1271	/* Better to catch this here, as otherwise the next use of this object	1179	/* Better to catch this here, as otherwise the next use of this object
1272	* is likely to cause a crash. Better to find out where it is getting	1180	* is likely to cause a crash. Better to find out where it is getting
1273	* improperly inserted.	1181	* improperly inserted.
1274	*/	1182	*/
1275	abort();	1183	abort ();
1276	#endif	1184	#endif
		1185	free (dump);
1277	return op;	1186	return op;
1278	}	1187	}
		1188
1279	if(!QUERY_FLAG(op,FLAG_REMOVED)) {	1189	if (!QUERY_FLAG (op, FLAG_REMOVED))
		1190	{
1280	dump_object(op);	1191	char *dump = dump_object (op);
1281	LOG(llevError,"Trying to insert (map) inserted object.\n%s\n", errmsg);	1192	LOG (llevError, "Trying to insert (map) inserted object.\n%s\n", dump);
		1193	free (dump);
1282	return op;	1194	return op;
		1195	}
		1196
		1197	if (op->more)
1283	}	1198	{
1284	if(op->more!=NULL) {
1285	/* The part may be on a different map. */	1199	/* The part may be on a different map. */
1286		1200
1287	object *more = op->more;	1201	object *more = op->more;
1288		1202
1289	/* We really need the caller to normalize coordinates - if	1203	/* We really need the caller to normalize coordinates - if
1290	* we set the map, that doesn't work if the location is within	1204	* we set the map, that doesn't work if the location is within
1291	* a map and this is straddling an edge. So only if coordinate	1205	* a map and this is straddling an edge. So only if coordinate
1292	* is clear wrong do we normalize it.	1206	* is clear wrong do we normalize it.
1293	*/	1207	*/
1294	if (OUT_OF_REAL_MAP(more->map, more->x, more->y)) {	1208	if (OUT_OF_REAL_MAP (more->map, more->x, more->y))
1295	more->map = get_map_from_coord(m, &more->x, &more->y);	1209	more->map = get_map_from_coord (m, &more->x, &more->y);
1296	} else if (!more->map) {	1210	else if (!more->map)
		1211	{
1297	/* For backwards compatibility - when not dealing with tiled maps,	1212	/* For backwards compatibility - when not dealing with tiled maps,
1298	* more->map should always point to the parent.	1213	* more->map should always point to the parent.
1299	*/	1214	*/
1300	more->map = m;	1215	more->map = m;
1301	}	1216	}
1302		1217
1303	if (insert_ob_in_map(more, more->map, originator, flag) == NULL) {	1218	if (insert_ob_in_map (more, more->map, originator, flag) == NULL)
		1219	{
1304	if ( ! op->head)	1220	if (!op->head)
1305	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");	1221	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");
		1222
1306	return NULL;	1223	return 0;
1307	}	1224	}
1308	}	1225	}
		1226
1309	CLEAR_FLAG(op,FLAG_REMOVED);	1227	CLEAR_FLAG (op, FLAG_REMOVED);
1310		1228
1311	/* Ideally, the caller figures this out. However, it complicates a lot	1229	/* 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	1230	* of areas of callers (eg, anything that uses find_free_spot would now
1313	* need extra work	1231	* need extra work
1314	*/	1232	*/
1315	op->map=get_map_from_coord(m, &op->x, &op->y);	1233	op->map = get_map_from_coord (m, &op->x, &op->y);
1316	x = op->x;	1234	x = op->x;
1317	y = op->y;	1235	y = op->y;
1318		1236
1319	/* this has to be done after we translate the coordinates.	1237	/* this has to be done after we translate the coordinates.
1320	*/	1238	*/
1321	if(op->nrof && !(flag & INS_NO_MERGE)) {	1239	if (op->nrof && !(flag & INS_NO_MERGE))
1322	for(tmp=GET_MAP_OB(op->map,x,y);tmp!=NULL;tmp=tmp->above)	1240	for (tmp = GET_MAP_OB (op->map, x, y); tmp != NULL; tmp = tmp->above)
1323	if (CAN_MERGE(op,tmp)) {	1241	if (object::can_merge (op, tmp))
		1242	{
1324	op->nrof+=tmp->nrof;	1243	op->nrof += tmp->nrof;
1325	remove_ob(tmp);	1244	tmp->destroy ();
1326	free_object(tmp);	1245	}
		1246
		1247	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */
		1248	CLEAR_FLAG (op, FLAG_INV_LOCKED);
		1249
		1250	if (!QUERY_FLAG (op, FLAG_ALIVE))
		1251	CLEAR_FLAG (op, FLAG_NO_STEAL);
		1252
		1253	if (flag & INS_BELOW_ORIGINATOR)
		1254	{
		1255	if (originator->map != op->map || originator->x != op->x || originator->y != op->y)
		1256	{
		1257	LOG (llevError, "insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");
		1258	abort ();
		1259	}
		1260
		1261	op->above = originator;
		1262	op->below = originator->below;
		1263
		1264	if (op->below)
		1265	op->below->above = op;
		1266	else
		1267	op->ms ().bot = op;
		1268
		1269	/* since *below* originator, no need to update top */
		1270	originator->below = op;
		1271	}
		1272	else
		1273	{
		1274	/* If there are other objects, then */
		1275	if ((!(flag & INS_MAP_LOAD)) && ((top = GET_MAP_OB (op->map, op->x, op->y)) != NULL))
		1276	{
		1277	object *last = NULL;
		1278
		1279	/*
		1280	* If there are multiple objects on this space, we do some trickier handling.
		1281	* We've already dealt with merging if appropriate.
		1282	* Generally, we want to put the new object on top. But if
		1283	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last
		1284	* floor, we want to insert above that and no further.
		1285	* Also, if there are spell objects on this space, we stop processing
		1286	* once we get to them. This reduces the need to traverse over all of
		1287	* them when adding another one - this saves quite a bit of cpu time
		1288	* when lots of spells are cast in one area. Currently, it is presumed
		1289	* that flying non pickable objects are spell objects.
		1290	*/
		1291
		1292	while (top != NULL)
		1293	{
		1294	if (QUERY_FLAG (top, FLAG_IS_FLOOR) || QUERY_FLAG (top, FLAG_OVERLAY_FLOOR))
		1295	floor = top;
		1296
		1297	if (QUERY_FLAG (top, FLAG_NO_PICK) && (top->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (top, FLAG_IS_FLOOR))
		1298	{
		1299	/* We insert above top, so we want this object below this */
		1300	top = top->below;
		1301	break;
		1302	}
		1303
		1304	last = top;
		1305	top = top->above;
1327	}	1306	}
1328	}
1329		1307
1330	CLEAR_FLAG(op,FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */	1308	/* Don't want top to be NULL, so set it to the last valid object */
1331	CLEAR_FLAG(op, FLAG_INV_LOCKED);	1309	top = last;
1332	if (!QUERY_FLAG(op, FLAG_ALIVE))
1333	CLEAR_FLAG(op, FLAG_NO_STEAL);
1334		1310
1335	if (flag & INS_BELOW_ORIGINATOR) {	1311	/* We let update_position deal with figuring out what the space
1336	if (originator->map != op->map || originator->x != op->x ||	1312	* looks like instead of lots of conditions here.
1337	originator->y != op->y) {	1313	* makes things faster, and effectively the same result.
1338	LOG(llevError,"insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");	1314	*/
1339	abort();	1315
		1316	/* Have object 'fall below' other objects that block view.
		1317	* Unless those objects are exits, type 66
		1318	* If INS_ON_TOP is used, don't do this processing
		1319	* Need to find the object that in fact blocks view, otherwise
		1320	* stacking is a bit odd.
		1321	*/
		1322	if (!(flag & INS_ON_TOP) &&
		1323	(get_map_flags (op->map, 0, op->x, op->y, 0, 0) & P_BLOCKSVIEW) && (op->face && !op->face->visibility))
		1324	{
		1325	for (last = top; last != floor; last = last->below)
		1326	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))
		1327	break;
		1328	/* Check to see if we found the object that blocks view,
		1329	* and make sure we have a below pointer for it so that
		1330	* we can get inserted below this one, which requires we
		1331	* set top to the object below us.
		1332	*/
		1333	if (last && last->below && last != floor)
		1334	top = last->below;
		1335	}
		1336	} /* If objects on this space */
		1337
		1338	if (flag & INS_MAP_LOAD)
		1339	top = GET_MAP_TOP (op->map, op->x, op->y);
		1340
		1341	if (flag & INS_ABOVE_FLOOR_ONLY)
		1342	top = floor;
		1343
		1344	/* Top is the object that our object (op) is going to get inserted above.
		1345	*/
		1346
		1347	/* First object on this space */
		1348	if (!top)
		1349	{
		1350	op->above = GET_MAP_OB (op->map, op->x, op->y);
		1351
		1352	if (op->above)
		1353	op->above->below = op;
		1354
		1355	op->below = NULL;
		1356	op->ms ().bot = op;
1340	}	1357	}
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 {	1358	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 */	1359	{ /* get inserted into the stack above top */
1419	op->above = top->above;	1360	op->above = top->above;
		1361
		1362	if (op->above)
1420	if (op->above) op->above->below = op;	1363	op->above->below = op;
		1364
1421	op->below = top;	1365	op->below = top;
1422	top->above = op;	1366	top->above = op;
1423	}	1367	}
		1368
1424	if (op->above==NULL)	1369	if (op->above == NULL)
1425	SET_MAP_TOP(op->map,op->x, op->y, op);	1370	op->ms ().top = op;
1426	} /* else not INS_BELOW_ORIGINATOR */	1371	} /* else not INS_BELOW_ORIGINATOR */
1427		1372
1428	if(op->type==PLAYER)	1373	if (op->type == PLAYER)
1429	op->contr->do_los=1;	1374	op->contr->do_los = 1;
1430		1375
1431	/* If we have a floor, we know the player, if any, will be above	1376	/* If we have a floor, we know the player, if any, will be above
1432	* it, so save a few ticks and start from there.	1377	* it, so save a few ticks and start from there.
1433	*/	1378	*/
1434	if (!(flag & INS_MAP_LOAD))	1379	if (!(flag & INS_MAP_LOAD))
1435	for(tmp=floor?floor:GET_MAP_OB(op->map,op->x,op->y);tmp!=NULL;tmp=tmp->above) {	1380	if (object *pl = op->ms ().player ())
1436	if (tmp->type == PLAYER)	1381	if (pl->contr->ns)
1437	tmp->contr->socket.update_look=1;	1382	pl->contr->ns->floorbox_update ();
1438	}
1439		1383
1440	/* If this object glows, it may affect lighting conditions that are	1384	/* If this object glows, it may affect lighting conditions that are
1441	* visible to others on this map. But update_all_los is really	1385	* visible to others on this map. But update_all_los is really
1442	* an inefficient way to do this, as it means los for all players	1386	* an inefficient way to do this, as it means los for all players
1443	* on the map will get recalculated. The players could very well	1387	* on the map will get recalculated. The players could very well
1444	* be far away from this change and not affected in any way -	1388	* be far away from this change and not affected in any way -
1445	* this should get redone to only look for players within range,	1389	* this should get redone to only look for players within range,
1446	* or just updating the P_NEED_UPDATE for spaces within this area	1390	* or just updating the P_NEED_UPDATE for spaces within this area
1447	* of effect may be sufficient.	1391	* of effect may be sufficient.
1448	*/	1392	*/
1449	if(MAP_DARKNESS(op->map) && (op->glow_radius != 0))	1393	if (op->map->darkness && (op->glow_radius != 0))
1450	update_all_los(op->map, op->x, op->y);	1394	update_all_los (op->map, op->x, op->y);
1451		1395
1452
1453	/* updates flags (blocked, alive, no magic, etc) for this map space */	1396	/* updates flags (blocked, alive, no magic, etc) for this map space */
1454	update_object(op,UP_OBJ_INSERT);	1397	update_object (op, UP_OBJ_INSERT);
1455		1398
		1399	INVOKE_OBJECT (INSERT, op);
1456		1400
1457	/* Don't know if moving this to the end will break anything. However,	1401	/* Don't know if moving this to the end will break anything. However,
1458	* we want to have update_look set above before calling this.	1402	* we want to have floorbox_update called before calling this.
1459	*	1403	*
1460	* check_move_on() must be after this because code called from	1404	* check_move_on() must be after this because code called from
1461	* check_move_on() depends on correct map flags (so functions like	1405	* check_move_on() depends on correct map flags (so functions like
1462	* blocked() and wall() work properly), and these flags are updated by	1406	* blocked() and wall() work properly), and these flags are updated by
1463	* update_object().	1407	* update_object().
1464	*/	1408	*/
1465		1409
1466	/* if this is not the head or flag has been passed, don't check walk on status */	1410	/* if this is not the head or flag has been passed, don't check walk on status */
1467
1468	if (!(flag & INS_NO_WALK_ON) && !op->head) {	1411	if (!(flag & INS_NO_WALK_ON) && !op->head)
		1412	{
1469	if (check_move_on(op, originator))	1413	if (check_move_on (op, originator))
1470	return NULL;	1414	return 0;
1471		1415
1472	/* If we are a multi part object, lets work our way through the check	1416	/* If we are a multi part object, lets work our way through the check
1473	* walk on's.	1417	* walk on's.
1474	*/	1418	*/
1475	for (tmp=op->more; tmp!=NULL; tmp=tmp->more)	1419	for (tmp = op->more; tmp != NULL; tmp = tmp->more)
1476	if (check_move_on (tmp, originator))	1420	if (check_move_on (tmp, originator))
1477	return NULL;	1421	return 0;
1478	}	1422	}
		1423
1479	return op;	1424	return op;
1480	}	1425	}
1481		1426
1482	/* this function inserts an object in the map, but if it	1427	/* 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.	1428	* 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.	1429	* op is the object to insert it under: supplies x and the map.
1485	*/	1430	*/
		1431	void
1486	void replace_insert_ob_in_map(const char *arch_string, object *op) {	1432	replace_insert_ob_in_map (const char *arch_string, object *op)
1487	object *tmp;	1433	{
1488	object *tmp1;	1434	object *tmp, *tmp1;
1489		1435
1490	/* first search for itself and remove any old instances */	1436	/* first search for itself and remove any old instances */
1491		1437
1492	for(tmp=GET_MAP_OB(op->map,op->x,op->y); tmp!=NULL; tmp=tmp->above) {	1438	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)
1493	if(!strcmp(tmp->arch->name,arch_string)) /* same archetype */ {	1439	if (!strcmp (tmp->arch->name, arch_string)) /* same archetype */
1494	remove_ob(tmp);	1440	tmp->destroy ();
1495	free_object(tmp);
1496	}
1497	}
1498		1441
1499	tmp1=arch_to_object(find_archetype(arch_string));	1442	tmp1 = arch_to_object (archetype::find (arch_string));
1500		1443
1501		1444	tmp1->x = op->x;
1502	tmp1->x = op->x; tmp1->y = op->y;	1445	tmp1->y = op->y;
1503	insert_ob_in_map(tmp1,op->map,op,0);	1446	insert_ob_in_map (tmp1, op->map, op, 0);
1504	}	1447	}
		1448
		1449	object *
		1450	object::insert_at (object *where, object *originator, int flags)
		1451	{
		1452	where->map->insert (this, where->x, where->y, originator, flags);
		1453	}
1505		1454
1506	/*	1455	/*
1507	* get_split_ob(ob,nr) splits up ob into two parts. The part which	1456	* get_split_ob(ob,nr) splits up ob into two parts. The part which
1508	* is returned contains nr objects, and the remaining parts contains	1457	* is returned contains nr objects, and the remaining parts contains
1509	* the rest (or is removed and freed if that number is 0).	1458	* the rest (or is removed and freed if that number is 0).
1510	* On failure, NULL is returned, and the reason put into the	1459	* On failure, NULL is returned, and the reason put into the
1511	* global static errmsg array.	1460	* global static errmsg array.
1512	*/	1461	*/
1513		1462	object *
1514	object *get_split_ob(object *orig_ob, uint32 nr) {	1463	get_split_ob (object *orig_ob, uint32 nr)
		1464	{
1515	object *newob;	1465	object *newob;
1516	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);	1466	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);
1517		1467
1518	if(orig_ob->nrof<nr) {	1468	if (orig_ob->nrof < nr)
1519	sprintf(errmsg,"There are only %d %ss.",	1469	{
1520	orig_ob->nrof?orig_ob->nrof:1, &orig_ob->name);	1470	sprintf (errmsg, "There are only %d %ss.", orig_ob->nrof ? orig_ob->nrof : 1, &orig_ob->name);
1521	return NULL;	1471	return NULL;
1522	}	1472	}
		1473
1523	newob = object_create_clone(orig_ob);	1474	newob = object_create_clone (orig_ob);
		1475
1524	if((orig_ob->nrof-=nr)<1) {	1476	if ((orig_ob->nrof -= nr) < 1)
1525	if ( ! is_removed)	1477	orig_ob->destroy (1);
1526	remove_ob(orig_ob);
1527	free_object2(orig_ob, 1);
1528	}
1529	else if ( ! is_removed) {	1478	else if (!is_removed)
		1479	{
1530	if(orig_ob->env!=NULL)	1480	if (orig_ob->env != NULL)
1531	sub_weight (orig_ob->env,orig_ob->weight*nr);	1481	sub_weight (orig_ob->env, orig_ob->weight * nr);
1532	if (orig_ob->env == NULL && orig_ob->map->in_memory!=MAP_IN_MEMORY) {	1482	if (orig_ob->env == NULL && orig_ob->map->in_memory != MAP_IN_MEMORY)
		1483	{
1533	strcpy(errmsg, "Tried to split object whose map is not in memory.");	1484	strcpy (errmsg, "Tried to split object whose map is not in memory.");
1534	LOG(llevDebug,
1535	"Error, Tried to split object whose map is not in memory.\n");	1485	LOG (llevDebug, "Error, Tried to split object whose map is not in memory.\n");
1536	return NULL;	1486	return NULL;
1537	}	1487	}
1538	}	1488	}
		1489
1539	newob->nrof=nr;	1490	newob->nrof = nr;
1540		1491
1541	return newob;	1492	return newob;
1542	}	1493	}
1543		1494
1544	/*	1495	/*
1545	* decrease_ob_nr(object, number) decreases a specified number from	1496	* decrease_ob_nr(object, number) decreases a specified number from
1546	* the amount of an object. If the amount reaches 0, the object	1497	* the amount of an object. If the amount reaches 0, the object
1547	* is subsequently removed and freed.	1498	* is subsequently removed and freed.
1548	*	1499	*
1549	* Return value: 'op' if something is left, NULL if the amount reached 0	1500	* Return value: 'op' if something is left, NULL if the amount reached 0
1550	*/	1501	*/
1551		1502
		1503	object *
1552	object *decrease_ob_nr (object *op, uint32 i)	1504	decrease_ob_nr (object *op, uint32 i)
1553	{	1505	{
1554	object *tmp;	1506	object *tmp;
1555	player *pl;
1556		1507
1557	if (i == 0) /* objects with op->nrof require this check */	1508	if (i == 0) /* objects with op->nrof require this check */
1558	return op;	1509	return op;
1559		1510
1560	if (i > op->nrof)	1511	if (i > op->nrof)
1561	i = op->nrof;	1512	i = op->nrof;
1562		1513
1563	if (QUERY_FLAG (op, FLAG_REMOVED))	1514	if (QUERY_FLAG (op, FLAG_REMOVED))
		1515	op->nrof -= i;
		1516	else if (op->env)
		1517	{
		1518	/* is this object in the players inventory, or sub container
		1519	* therein?
		1520	*/
		1521	tmp = op->in_player ();
		1522	/* nope. Is this a container the player has opened?
		1523	* If so, set tmp to that player.
		1524	* IMO, searching through all the players will mostly
		1525	* likely be quicker than following op->env to the map,
		1526	* and then searching the map for a player.
		1527	*/
		1528	if (!tmp)
		1529	for_all_players (pl)
		1530	if (pl->ob->container == op->env)
		1531	{
		1532	tmp = pl->ob;
		1533	break;
		1534	}
		1535
		1536	if (i < op->nrof)
		1537	{
		1538	sub_weight (op->env, op->weight * i);
		1539	op->nrof -= i;
		1540	if (tmp)
		1541	esrv_send_item (tmp, op);
		1542	}
		1543	else
		1544	{
		1545	op->remove ();
		1546	op->nrof = 0;
		1547	if (tmp)
		1548	esrv_del_item (tmp->contr, op->count);
		1549	}
1564	{	1550	}
		1551	else
		1552	{
		1553	object *above = op->above;
		1554
		1555	if (i < op->nrof)
1565	op->nrof -= i;	1556	op->nrof -= i;
1566	}	1557	else
1567	else if (op->env != NULL)
1568	{
1569	/* is this object in the players inventory, or sub container
1570	* therein?
1571	*/	1558	{
1572	tmp = is_player_inv (op->env);	1559	op->remove ();
1573	/* nope. Is this a container the player has opened?	1560	op->nrof = 0;
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	}	1561	}
1585		1562
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);
1594	op->nrof = 0;
1595	if (tmp) {
1596	esrv_del_item(tmp->contr, op->count);
1597	}
1598	}
1599	}
1600	else
1601	{
1602	object *above = op->above;
1603
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 */	1563	/* Since we just removed op, op->above is null */
1611	for (tmp = above; tmp != NULL; tmp = tmp->above)	1564	for (tmp = above; tmp; tmp = tmp->above)
1612	if (tmp->type == PLAYER) {	1565	if (tmp->type == PLAYER)
		1566	{
1613	if (op->nrof)	1567	if (op->nrof)
1614	esrv_send_item(tmp, op);	1568	esrv_send_item (tmp, op);
1615	else	1569	else
1616	esrv_del_item(tmp->contr, op->count);	1570	esrv_del_item (tmp->contr, op->count);
1617	}	1571	}
1618	}	1572	}
1619		1573
1620	if (op->nrof) {	1574	if (op->nrof)
1621	return op;	1575	return op;
1622	} else {	1576	else
1623	free_object (op);	1577	{
		1578	op->destroy ();
1624	return NULL;	1579	return 0;
1625	}	1580	}
1626	}	1581	}
1627		1582
1628	/*	1583	/*
1629	* add_weight(object, weight) adds the specified weight to an object,	1584	* add_weight(object, weight) adds the specified weight to an object,
1630	* and also updates how much the environment(s) is/are carrying.	1585	* and also updates how much the environment(s) is/are carrying.
1631	*/	1586	*/
1632		1587
		1588	void
1633	void add_weight (object *op, signed long weight) {	1589	add_weight (object *op, signed long weight)
		1590	{
1634	while (op!=NULL) {	1591	while (op != NULL)
		1592	{
1635	if (op->type == CONTAINER) {	1593	if (op->type == CONTAINER)
1636	weight=(signed long)(weight*(100-op->stats.Str)/100);	1594	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1637	}	1595
1638	op->carrying+=weight;	1596	op->carrying += weight;
1639	op=op->env;	1597	op = op->env;
1640	}	1598	}
1641	}	1599	}
1642		1600
		1601	object *
		1602	insert_ob_in_ob (object *op, object *where)
		1603	{
		1604	if (!where)
		1605	{
		1606	char *dump = dump_object (op);
		1607	LOG (llevError, "Trying to put object in NULL.\n%s\n", dump);
		1608	free (dump);
		1609	return op;
		1610	}
		1611
		1612	if (where->head)
		1613	{
		1614	LOG (llevDebug, "Warning: Tried to insert object into wrong part of multipart object.\n");
		1615	where = where->head;
		1616	}
		1617
		1618	return where->insert (op);
		1619	}
		1620
1643	/*	1621	/*
1644	* insert_ob_in_ob(op,environment):	1622	* env->insert (op)
1645	* This function inserts the object op in the linked list	1623	* This function inserts the object op in the linked list
1646	* inside the object environment.	1624	* inside the object environment.
1647	*	1625	*
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	1626	* The function returns now pointer to inserted item, and return value can
1654	* be != op, if items are merged. -Tero	1627	* be != op, if items are merged. -Tero
1655	*/	1628	*/
1656		1629
1657	object *insert_ob_in_ob(object *op,object *where) {	1630	object *
		1631	object::insert (object *op)
		1632	{
1658	object *tmp, *otmp;	1633	object *tmp, *otmp;
1659		1634
1660	if(!QUERY_FLAG(op,FLAG_REMOVED)) {	1635	if (!QUERY_FLAG (op, FLAG_REMOVED))
1661	dump_object(op);	1636	op->remove ();
1662	LOG(llevError,"Trying to insert (ob) inserted object.\n%s\n", errmsg);	1637
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) {	1638	if (op->more)
		1639	{
1676	LOG(llevError, "Tried to insert multipart object %s (%d)\n",	1640	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);
1677	&op->name, op->count);
1678	return op;	1641	return op;
1679	}	1642	}
		1643
1680	CLEAR_FLAG(op, FLAG_OBJ_ORIGINAL);	1644	CLEAR_FLAG (op, FLAG_OBJ_ORIGINAL);
1681	CLEAR_FLAG(op, FLAG_REMOVED);	1645	CLEAR_FLAG (op, FLAG_REMOVED);
1682	if(op->nrof) {	1646	if (op->nrof)
		1647	{
1683	for(tmp=where->inv;tmp!=NULL;tmp=tmp->below)	1648	for (tmp = inv; tmp != NULL; tmp = tmp->below)
1684	if ( CAN_MERGE(tmp,op) ) {	1649	if (object::can_merge (tmp, op))
		1650	{
1685	/* return the original object and remove inserted object	1651	/* return the original object and remove inserted object
1686	(client needs the original object) */	1652	(client needs the original object) */
1687	tmp->nrof += op->nrof;	1653	tmp->nrof += op->nrof;
1688	/* Weight handling gets pretty funky. Since we are adding to	1654	/* Weight handling gets pretty funky. Since we are adding to
1689	* tmp->nrof, we need to increase the weight.	1655	* tmp->nrof, we need to increase the weight.
1690	*/	1656	*/
1691	add_weight (where, op->weight*op->nrof);	1657	add_weight (this, op->weight * op->nrof);
1692	SET_FLAG(op, FLAG_REMOVED);	1658	SET_FLAG (op, FLAG_REMOVED);
1693	free_object(op); /* free the inserted object */	1659	op->destroy (); /* free the inserted object */
1694	op = tmp;	1660	op = tmp;
1695	remove_ob (op); /* and fix old object's links */	1661	op->remove (); /* and fix old object's links */
1696	CLEAR_FLAG(op, FLAG_REMOVED);	1662	CLEAR_FLAG (op, FLAG_REMOVED);
1697	break;	1663	break;
1698	}	1664	}
1699		1665
1700	/* I assume combined objects have no inventory	1666	/* I assume combined objects have no inventory
1701	* We add the weight - this object could have just been removed	1667	* We add the weight - this object could have just been removed
1702	* (if it was possible to merge). calling remove_ob will subtract	1668	* (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	1669	* the weight, so we need to add it in again, since we actually do
1704	* the linking below	1670	* the linking below
1705	*/	1671	*/
1706	add_weight (where, op->weight*op->nrof);	1672	add_weight (this, op->weight * op->nrof);
		1673	}
1707	} else	1674	else
1708	add_weight (where, (op->weight+op->carrying));	1675	add_weight (this, (op->weight + op->carrying));
1709		1676
1710	otmp=is_player_inv(where);	1677	otmp = this->in_player ();
1711	if (otmp&&otmp->contr!=NULL) {	1678	if (otmp && otmp->contr)
1712	if (!QUERY_FLAG(otmp,FLAG_NO_FIX_PLAYER))	1679	if (!QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1713	fix_player(otmp);	1680	otmp->update_stats ();
1714	}
1715		1681
1716	op->map=NULL;	1682	op->map = 0;
1717	op->env=where;	1683	op->env = this;
1718	op->above=NULL;	1684	op->above = 0;
1719	op->below=NULL;	1685	op->below = 0;
1720	op->x=0,op->y=0;	1686	op->x = 0, op->y = 0;
1721		1687
1722	/* reset the light list and los of the players on the map */	1688	/* reset the light list and los of the players on the map */
1723	if((op->glow_radius!=0)&&where->map)	1689	if ((op->glow_radius != 0) && map)
1724	{	1690	{
1725	#ifdef DEBUG_LIGHTS	1691	#ifdef DEBUG_LIGHTS
1726	LOG(llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n",	1692	LOG (llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n", op->name);
1727	op->name);
1728	#endif /* DEBUG_LIGHTS */	1693	#endif /* DEBUG_LIGHTS */
1729	if (MAP_DARKNESS(where->map)) update_all_los(where->map, where->x, where->y);	1694	if (map->darkness)
		1695	update_all_los (map, x, y);
1730	}	1696	}
1731		1697
1732	/* Client has no idea of ordering so lets not bother ordering it here.	1698	/* Client has no idea of ordering so lets not bother ordering it here.
1733	* It sure simplifies this function...	1699	* It sure simplifies this function...
1734	*/	1700	*/
1735	if (where->inv==NULL)	1701	if (!inv)
1736	where->inv=op;	1702	inv = op;
1737	else {	1703	else
		1704	{
1738	op->below = where->inv;	1705	op->below = inv;
1739	op->below->above = op;	1706	op->below->above = op;
1740	where->inv = op;	1707	inv = op;
1741	}	1708	}
		1709
		1710	INVOKE_OBJECT (INSERT, this);
		1711
1742	return op;	1712	return op;
1743	}	1713	}
1744		1714
1745	/*	1715	/*
1746	* Checks if any objects has a move_type that matches objects	1716	* Checks if any objects has a move_type that matches objects
…		…
1760	*	1730	*
1761	* MSW 2001-07-08: Check all objects on space, not just those below	1731	* MSW 2001-07-08: Check all objects on space, not just those below
1762	* object being inserted. insert_ob_in_map may not put new objects	1732	* object being inserted. insert_ob_in_map may not put new objects
1763	* on top.	1733	* on top.
1764	*/	1734	*/
1765		1735	int
1766	int check_move_on (object *op, object *originator)	1736	check_move_on (object *op, object *originator)
1767	{	1737	{
1768	object *tmp;	1738	object *tmp;
1769	tag_t tag;
1770	mapstruct *m=op->map;	1739	maptile *m = op->map;
1771	int x=op->x, y=op->y;	1740	int x = op->x, y = op->y;
		1741
1772	MoveType move_on, move_slow, move_block;	1742	MoveType move_on, move_slow, move_block;
1773		1743
1774	if(QUERY_FLAG(op,FLAG_NO_APPLY))	1744	if (QUERY_FLAG (op, FLAG_NO_APPLY))
1775	return 0;	1745	return 0;
1776		1746
1777	tag = op->count;
1778
1779	move_on = GET_MAP_MOVE_ON(op->map, op->x, op->y);	1747	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);
1780	move_slow = GET_MAP_MOVE_SLOW(op->map, op->x, op->y);	1748	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);
1781	move_block = GET_MAP_MOVE_BLOCK(op->map, op->x, op->y);	1749	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);
1782		1750
1783	/* if nothing on this space will slow op down or be applied,	1751	/* if nothing on this space will slow op down or be applied,
1784	* no need to do checking below. have to make sure move_type	1752	* no need to do checking below. have to make sure move_type
1785	* is set, as lots of objects don't have it set - we treat that	1753	* is set, as lots of objects don't have it set - we treat that
1786	* as walking.	1754	* as walking.
1787	*/	1755	*/
1788	if (op->move_type && !(op->move_type & move_on) && !(op->move_type & move_slow))	1756	if (op->move_type && !(op->move_type & move_on) && !(op->move_type & move_slow))
1789	return 0;	1757	return 0;
1790		1758
1791	/* This is basically inverse logic of that below - basically,	1759	/* This is basically inverse logic of that below - basically,
1792	* if the object can avoid the move on or slow move, they do so,	1760	* if the object can avoid the move on or slow move, they do so,
1793	* but can't do it if the alternate movement they are using is	1761	* but can't do it if the alternate movement they are using is
1794	* blocked. Logic on this seems confusing, but does seem correct.	1762	* blocked. Logic on this seems confusing, but does seem correct.
1795	*/	1763	*/
1796	if ((op->move_type & ~move_on & ~move_block) != 0 &&	1764	if ((op->move_type & ~move_on & ~move_block) != 0 && (op->move_type & ~move_slow & ~move_block) != 0)
1797	(op->move_type & ~move_slow & ~move_block) != 0) return 0;	1765	return 0;
1798		1766
1799	/* The objects have to be checked from top to bottom.	1767	/* The objects have to be checked from top to bottom.
1800	* Hence, we first go to the top:	1768	* Hence, we first go to the top:
1801	*/	1769	*/
1802		1770
1803	for (tmp=GET_MAP_OB(op->map, op->x, op->y); tmp!=NULL &&	1771	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp && tmp->above; tmp = tmp->above)
1804	tmp->above!=NULL; tmp=tmp->above) {	1772	{
1805	/* Trim the search when we find the first other spell effect	1773	/* Trim the search when we find the first other spell effect
1806	* this helps performance so that if a space has 50 spell objects,	1774	* this helps performance so that if a space has 50 spell objects,
1807	* we don't need to check all of them.	1775	* we don't need to check all of them.
1808	*/	1776	*/
1809	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG(tmp, FLAG_NO_PICK)) break;	1777	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG (tmp, FLAG_NO_PICK))
		1778	break;
		1779	}
		1780
		1781	for (; tmp; tmp = tmp->below)
1810	}	1782	{
1811	for(;tmp!=NULL; tmp=tmp->below) {	1783	if (tmp == op)
1812	if (tmp == op) continue; /* Can't apply yourself */	1784	continue; /* Can't apply yourself */
1813		1785
1814	/* Check to see if one of the movement types should be slowed down.	1786	/* Check to see if one of the movement types should be slowed down.
1815	* Second check makes sure that the movement types not being slowed	1787	* Second check makes sure that the movement types not being slowed
1816	* (~slow_move) is not blocked on this space - just because the	1788	* (~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	1789	* 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.	1790	* swim on that space, can't use it to avoid the penalty.
1819	*/	1791	*/
1820	if (!QUERY_FLAG(op, FLAG_WIZPASS)) {	1792	if (!QUERY_FLAG (op, FLAG_WIZPASS))
		1793	{
1821	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||	1794	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)) {	1795	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))
		1796	{
1824		1797
1825	float diff;	1798	float
1826
1827	diff = tmp->move_slow_penalty*FABS(op->speed);	1799	diff = tmp->move_slow_penalty * FABS (op->speed);
		1800
1828	if (op->type == PLAYER) {	1801	if (op->type == PLAYER)
1829	if ((QUERY_FLAG(tmp, FLAG_IS_HILLY) && find_skill_by_number(op, SK_CLIMBING)) ||	1802	if ((QUERY_FLAG (tmp, FLAG_IS_HILLY) && find_skill_by_number (op, SK_CLIMBING)) ||
1830	(QUERY_FLAG(tmp, FLAG_IS_WOODED) && find_skill_by_number(op, SK_WOODSMAN))) {	1803	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))
1831	diff /= 4.0;	1804	diff /= 4.0;
1832	}	1805
1833	}
1834	op->speed_left -= diff;	1806	op->speed_left -= diff;
1835	}	1807	}
1836	}	1808	}
1837		1809
1838	/* Basically same logic as above, except now for actual apply. */	1810	/* Basically same logic as above, except now for actual apply. */
1839	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||	1811	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)) {	1812	((op->move_type & tmp->move_on) && (op->move_type & ~tmp->move_on & ~tmp->move_block) == 0))
1842		1813	{
1843	move_apply(tmp, op, originator);	1814	move_apply (tmp, op, originator);
		1815
1844	if (was_destroyed (op, tag))	1816	if (op->destroyed ())
1845	return 1;	1817	return 1;
1846		1818
1847	/* what the person/creature stepped onto has moved the object	1819	/* what the person/creature stepped onto has moved the object
1848	* someplace new. Don't process any further - if we did,	1820	* someplace new. Don't process any further - if we did,
1849	* have a feeling strange problems would result.	1821	* have a feeling strange problems would result.
1850	*/	1822	*/
1851	if (op->map != m || op->x != x || op->y != y) return 0;	1823	if (op->map != m || op->x != x || op->y != y)
		1824	return 0;
1852	}	1825	}
1853	}	1826	}
		1827
1854	return 0;	1828	return 0;
1855	}	1829	}
1856		1830
1857	/*	1831	/*
1858	* present_arch(arch, map, x, y) searches for any objects with	1832	* present_arch(arch, map, x, y) searches for any objects with
1859	* a matching archetype at the given map and coordinates.	1833	* a matching archetype at the given map and coordinates.
1860	* The first matching object is returned, or NULL if none.	1834	* The first matching object is returned, or NULL if none.
1861	*/	1835	*/
1862		1836	object *
1863	object *present_arch(const archetype *at, mapstruct *m, int x, int y) {	1837	present_arch (const archetype *at, maptile *m, int x, int y)
1864	object *tmp;	1838	{
1865	if(m==NULL || out_of_map(m,x,y)) {	1839	if (m == NULL || out_of_map (m, x, y))
		1840	{
1866	LOG(llevError,"Present_arch called outside map.\n");	1841	LOG (llevError, "Present_arch called outside map.\n");
1867	return NULL;	1842	return NULL;
1868	}	1843	}
		1844
1869	for(tmp=GET_MAP_OB(m,x,y); tmp != NULL; tmp = tmp->above)	1845	for (object *tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)
1870	if(tmp->arch == at)	1846	if (tmp->arch == at)
1871	return tmp;	1847	return tmp;
		1848
1872	return NULL;	1849	return NULL;
1873	}	1850	}
1874		1851
1875	/*	1852	/*
1876	* present(type, map, x, y) searches for any objects with	1853	* present(type, map, x, y) searches for any objects with
1877	* a matching type variable at the given map and coordinates.	1854	* a matching type variable at the given map and coordinates.
1878	* The first matching object is returned, or NULL if none.	1855	* The first matching object is returned, or NULL if none.
1879	*/	1856	*/
1880		1857	object *
1881	object *present(unsigned char type,mapstruct *m, int x,int y) {	1858	present (unsigned char type, maptile *m, int x, int y)
1882	object *tmp;	1859	{
1883	if(out_of_map(m,x,y)) {	1860	if (out_of_map (m, x, y))
		1861	{
1884	LOG(llevError,"Present called outside map.\n");	1862	LOG (llevError, "Present called outside map.\n");
1885	return NULL;	1863	return NULL;
1886	}	1864	}
		1865
1887	for(tmp=GET_MAP_OB(m,x,y);tmp!=NULL;tmp=tmp->above)	1866	for (object *tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)
1888	if(tmp->type==type)	1867	if (tmp->type == type)
1889	return tmp;	1868	return tmp;
		1869
1890	return NULL;	1870	return NULL;
1891	}	1871	}
1892		1872
1893	/*	1873	/*
1894	* present_in_ob(type, object) searches for any objects with	1874	* present_in_ob(type, object) searches for any objects with
1895	* a matching type variable in the inventory of the given object.	1875	* a matching type variable in the inventory of the given object.
1896	* The first matching object is returned, or NULL if none.	1876	* The first matching object is returned, or NULL if none.
1897	*/	1877	*/
1898		1878	object *
1899	object *present_in_ob(unsigned char type, const object *op) {	1879	present_in_ob (unsigned char type, const object *op)
1900	object *tmp;	1880	{
1901	for(tmp=op->inv;tmp!=NULL;tmp=tmp->below)	1881	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
1902	if(tmp->type==type)	1882	if (tmp->type == type)
1903	return tmp;	1883	return tmp;
		1884
1904	return NULL;	1885	return NULL;
1905	}	1886	}
1906		1887
1907	/*	1888	/*
1908	* present_in_ob (type, str, object) searches for any objects with	1889	* present_in_ob (type, str, object) searches for any objects with
…		…
1916	* str is the string to match against. Note that we match against	1897	* str is the string to match against. Note that we match against
1917	* the object name, not the archetype name. this is so that the	1898	* the object name, not the archetype name. this is so that the
1918	* spell code can use one object type (force), but change it's name	1899	* spell code can use one object type (force), but change it's name
1919	* to be unique.	1900	* to be unique.
1920	*/	1901	*/
1921		1902	object *
1922	object *present_in_ob_by_name(int type, const char *str, const object *op) {	1903	present_in_ob_by_name (int type, const char *str, const object *op)
1923	object *tmp;	1904	{
1924
1925	for(tmp=op->inv; tmp!=NULL; tmp=tmp->below) {	1905	for (object *tmp = op->inv; tmp; tmp = tmp->below)
1926	if ((type==-1 || tmp->type==type) && (!strcmp(str, tmp->name)))	1906	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))
1927	return tmp;	1907	return tmp;
1928	}	1908
1929	return NULL;	1909	return 0;
1930	}	1910	}
1931		1911
1932	/*	1912	/*
1933	* present_arch_in_ob(archetype, object) searches for any objects with	1913	* present_arch_in_ob(archetype, object) searches for any objects with
1934	* a matching archetype in the inventory of the given object.	1914	* a matching archetype in the inventory of the given object.
1935	* The first matching object is returned, or NULL if none.	1915	* The first matching object is returned, or NULL if none.
1936	*/	1916	*/
1937		1917	object *
1938	object *present_arch_in_ob(const archetype *at, const object *op) {	1918	present_arch_in_ob (const archetype *at, const object *op)
1939	object *tmp;	1919	{
1940	for(tmp=op->inv;tmp!=NULL;tmp=tmp->below)	1920	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
1941	if( tmp->arch == at)	1921	if (tmp->arch == at)
1942	return tmp;	1922	return tmp;
		1923
1943	return NULL;	1924	return NULL;
1944	}	1925	}
1945		1926
1946	/*	1927	/*
1947	* activate recursively a flag on an object inventory	1928	* activate recursively a flag on an object inventory
1948	*/	1929	*/
		1930	void
1949	void flag_inv(object*op, int flag){	1931	flag_inv (object *op, int flag)
1950	object *tmp;	1932	{
1951	if(op->inv)	1933	if (op->inv)
1952	for(tmp = op->inv; tmp != NULL; tmp = tmp->below){	1934	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
		1935	{
1953	SET_FLAG(tmp, flag);	1936	SET_FLAG (tmp, flag);
1954	flag_inv(tmp,flag);	1937	flag_inv (tmp, flag);
1955	}	1938	}
		1939	}
		1940
1956	}/*	1941	/*
1957	* desactivate recursively a flag on an object inventory	1942	* deactivate recursively a flag on an object inventory
1958	*/	1943	*/
		1944	void
1959	void unflag_inv(object*op, int flag){	1945	unflag_inv (object *op, int flag)
1960	object *tmp;	1946	{
1961	if(op->inv)	1947	if (op->inv)
1962	for(tmp = op->inv; tmp != NULL; tmp = tmp->below){	1948	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
		1949	{
1963	CLEAR_FLAG(tmp, flag);	1950	CLEAR_FLAG (tmp, flag);
1964	unflag_inv(tmp,flag);	1951	unflag_inv (tmp, flag);
1965	}	1952	}
1966	}	1953	}
1967		1954
1968	/*	1955	/*
1969	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in	1956	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in
1970	* all it's inventory (recursively).	1957	* all it's inventory (recursively).
1971	* If checksums are used, a player will get set_cheat called for	1958	* If checksums are used, a player will get set_cheat called for
1972	* him/her-self and all object carried by a call to this function.	1959	* him/her-self and all object carried by a call to this function.
1973	*/	1960	*/
1974		1961	void
1975	void set_cheat(object *op) {	1962	set_cheat (object *op)
		1963	{
1976	SET_FLAG(op, FLAG_WAS_WIZ);	1964	SET_FLAG (op, FLAG_WAS_WIZ);
1977	flag_inv(op, FLAG_WAS_WIZ);	1965	flag_inv (op, FLAG_WAS_WIZ);
1978	}	1966	}
1979		1967
1980	/*	1968	/*
1981	* find_free_spot(object, map, x, y, start, stop) will search for	1969	* find_free_spot(object, map, x, y, start, stop) will search for
1982	* a spot at the given map and coordinates which will be able to contain	1970	* a spot at the given map and coordinates which will be able to contain
…		…
1996	* because arch_blocked (now ob_blocked) needs to know the movement type	1984	* because arch_blocked (now ob_blocked) needs to know the movement type
1997	* to know if the space in question will block the object. We can't use	1985	* to know if the space in question will block the object. We can't use
1998	* the archetype because that isn't correct if the monster has been	1986	* the archetype because that isn't correct if the monster has been
1999	* customized, changed states, etc.	1987	* customized, changed states, etc.
2000	*/	1988	*/
2001		1989	int
2002	int find_free_spot(const object *ob, mapstruct *m,int x,int y,int start,int stop) {	1990	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)
		1991	{
2003	int i,index=0, flag;	1992	int index = 0, flag;
2004	static int altern[SIZEOFFREE];	1993	int altern[SIZEOFFREE];
2005		1994
2006	for(i=start;i<stop;i++) {	1995	for (int i = start; i < stop; i++)
		1996	{
2007	flag = ob_blocked(ob,m,x+freearr_x[i],y+freearr_y[i]);	1997	flag = ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]);
2008	if(!flag)	1998	if (!flag)
2009	altern[index++]=i;	1999	altern [index++] = i;
2010		2000
2011	/* Basically, if we find a wall on a space, we cut down the search size.	2001	/* Basically, if we find a wall on a space, we cut down the search size.
2012	* In this way, we won't return spaces that are on another side of a wall.	2002	* In this way, we won't return spaces that are on another side of a wall.
2013	* This mostly work, but it cuts down the search size in all directions -	2003	* This mostly work, but it cuts down the search size in all directions -
2014	* if the space being examined only has a wall to the north and empty	2004	* if the space being examined only has a wall to the north and empty
2015	* spaces in all the other directions, this will reduce the search space	2005	* spaces in all the other directions, this will reduce the search space
2016	* to only the spaces immediately surrounding the target area, and	2006	* to only the spaces immediately surrounding the target area, and
2017	* won't look 2 spaces south of the target space.	2007	* won't look 2 spaces south of the target space.
2018	*/	2008	*/
2019	else if ((flag & AB_NO_PASS) && maxfree[i]<stop)	2009	else if ((flag & P_NO_PASS) && maxfree[i] < stop)
2020	stop=maxfree[i];	2010	stop = maxfree[i];
2021	}	2011	}
2022	if(!index) return -1;	2012
		2013	if (!index)
		2014	return -1;
		2015
2023	return altern[RANDOM()%index];	2016	return altern[RANDOM () % index];
2024	}	2017	}
2025		2018
2026	/*	2019	/*
2027	* find_first_free_spot(archetype, mapstruct, x, y) works like	2020	* find_first_free_spot(archetype, maptile, x, y) works like
2028	* find_free_spot(), but it will search max number of squares.	2021	* find_free_spot(), but it will search max number of squares.
2029	* But it will return the first available spot, not a random choice.	2022	* But it will return the first available spot, not a random choice.
2030	* Changed 0.93.2: Have it return -1 if there is no free spot available.	2023	* Changed 0.93.2: Have it return -1 if there is no free spot available.
2031	*/	2024	*/
2032		2025	int
2033	int find_first_free_spot(const object *ob, mapstruct *m,int x,int y) {	2026	find_first_free_spot (const object *ob, maptile *m, int x, int y)
2034	int i;	2027	{
2035	for(i=0;i<SIZEOFFREE;i++) {	2028	for (int i = 0; i < SIZEOFFREE; i++)
2036	if(!ob_blocked(ob,m,x+freearr_x[i],y+freearr_y[i]))	2029	if (!ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]))
2037	return i;	2030	return i;
2038	}	2031
2039	return -1;	2032	return -1;
2040	}	2033	}
2041		2034
2042	/*	2035	/*
2043	* The function permute(arr, begin, end) randomly reorders the array	2036	* The function permute(arr, begin, end) randomly reorders the array
2044	* arr[begin..end-1].	2037	* arr[begin..end-1].
		2038	* now uses a fisher-yates shuffle, old permute was broken
2045	*/	2039	*/
		2040	static void
2046	static void permute(int *arr, int begin, int end)	2041	permute (int *arr, int begin, int end)
2047	{	2042	{
2048	int i, j, tmp, len;	2043	arr += begin;
		2044	end -= begin;
2049		2045
2050	len = end-begin;	2046	while (--end)
2051	for(i = begin; i < end; i++)	2047	swap (arr [end], arr [RANDOM () % (end + 1)]);
2052	{
2053	j = begin+RANDOM()%len;
2054
2055	tmp = arr[i];
2056	arr[i] = arr[j];
2057	arr[j] = tmp;
2058	}
2059	}	2048	}
2060		2049
2061	/* new function to make monster searching more efficient, and effective!	2050	/* new function to make monster searching more efficient, and effective!
2062	* This basically returns a randomized array (in the passed pointer) of	2051	* 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	2052	* 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	2053	* 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	2054	* 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.	2055	* the 3x3 area will be searched, just not in a predictable order.
2067	*/	2056	*/
		2057	void
2068	void get_search_arr(int *search_arr)	2058	get_search_arr (int *search_arr)
2069	{	2059	{
2070	int i;	2060	int i;
2071		2061
2072	for(i = 0; i < SIZEOFFREE; i++)	2062	for (i = 0; i < SIZEOFFREE; i++)
2073	{
2074	search_arr[i] = i;	2063	search_arr[i] = i;
2075	}
2076		2064
2077	permute(search_arr, 1, SIZEOFFREE1+1);	2065	permute (search_arr, 1, SIZEOFFREE1 + 1);
2078	permute(search_arr, SIZEOFFREE1+1, SIZEOFFREE2+1);	2066	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);
2079	permute(search_arr, SIZEOFFREE2+1, SIZEOFFREE);	2067	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);
2080	}	2068	}
2081		2069
2082	/*	2070	/*
2083	* find_dir(map, x, y, exclude) will search some close squares in the	2071	* find_dir(map, x, y, exclude) will search some close squares in the
2084	* given map at the given coordinates for live objects.	2072	* given map at the given coordinates for live objects.
…		…
2089	* Perhaps incorrectly, but I'm making the assumption that exclude	2077	* Perhaps incorrectly, but I'm making the assumption that exclude
2090	* is actually want is going to try and move there. We need this info	2078	* is actually want is going to try and move there. We need this info
2091	* because we have to know what movement the thing looking to move	2079	* because we have to know what movement the thing looking to move
2092	* there is capable of.	2080	* there is capable of.
2093	*/	2081	*/
2094		2082	int
2095	int find_dir(mapstruct *m, int x, int y, object *exclude) {	2083	find_dir (maptile *m, int x, int y, object *exclude)
		2084	{
2096	int i,max=SIZEOFFREE, mflags;	2085	int i, max = SIZEOFFREE, mflags;
		2086
2097	sint16 nx, ny;	2087	sint16 nx, ny;
2098	object *tmp;	2088	object *tmp;
2099	mapstruct *mp;	2089	maptile *mp;
		2090
2100	MoveType blocked, move_type;	2091	MoveType blocked, move_type;
2101		2092
2102	if (exclude && exclude->head) {	2093	if (exclude && exclude->head)
		2094	{
2103	exclude = exclude->head;	2095	exclude = exclude->head;
2104	move_type = exclude->move_type;	2096	move_type = exclude->move_type;
2105	} else {	2097	}
		2098	else
		2099	{
2106	/* If we don't have anything, presume it can use all movement types. */	2100	/* If we don't have anything, presume it can use all movement types. */
2107	move_type=MOVE_ALL;	2101	move_type = MOVE_ALL;
		2102	}
		2103
		2104	for (i = 1; i < max; i++)
2108	}	2105	{
2109
2110	for(i=1;i<max;i++) {
2111	mp = m;	2106	mp = m;
2112	nx = x + freearr_x[i];	2107	nx = x + freearr_x[i];
2113	ny = y + freearr_y[i];	2108	ny = y + freearr_y[i];
2114		2109
2115	mflags = get_map_flags(m, &mp, nx, ny, &nx, &ny);	2110	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);
		2111
2116	if (mflags & P_OUT_OF_MAP) {	2112	if (mflags & P_OUT_OF_MAP)
		2113	max = maxfree[i];
		2114	else
		2115	{
		2116	mapspace &ms = mp->at (nx, ny);
		2117
		2118	blocked = ms.move_block;
		2119
		2120	if ((move_type & blocked) == move_type)
2117	max = maxfree[i];	2121	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) {	2122	else if (mflags & P_IS_ALIVE)
2124	for (tmp=GET_MAP_OB(mp,nx,ny); tmp!= NULL; tmp=tmp->above) {	2123	{
		2124	for (tmp = ms.bot; tmp; tmp = tmp->above)
2125	if ((QUERY_FLAG(tmp,FLAG_MONSTER) || tmp->type==PLAYER) &&	2125	if ((tmp->flag [FLAG_MONSTER] || tmp->type == PLAYER)
2126	(tmp != exclude ||(tmp->head && tmp->head != exclude))) {	2126	&& (tmp != exclude || (tmp->head && tmp->head != exclude)))
2127	break;	2127	break;
2128	}	2128
2129	}
2130	if(tmp) {	2129	if (tmp)
2131	return freedir[i];	2130	return freedir[i];
2132	}
2133	}	2131	}
2134	}	2132	}
2135	}	2133	}
		2134
2136	return 0;	2135	return 0;
2137	}	2136	}
2138		2137
2139	/*	2138	/*
2140	* distance(object 1, object 2) will return the square of the	2139	* distance(object 1, object 2) will return the square of the
2141	* distance between the two given objects.	2140	* distance between the two given objects.
2142	*/	2141	*/
2143		2142	int
2144	int distance(const object *ob1, const object *ob2) {	2143	distance (const object *ob1, const object *ob2)
2145	int i;	2144	{
2146	i= (ob1->x - ob2->x)*(ob1->x - ob2->x)+	2145	return (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);
2147	(ob1->y - ob2->y)*(ob1->y - ob2->y);
2148	return i;
2149	}	2146	}
2150		2147
2151	/*	2148	/*
2152	* find_dir_2(delta-x,delta-y) will return a direction in which	2149	* find_dir_2(delta-x,delta-y) will return a direction in which
2153	* an object which has subtracted the x and y coordinates of another	2150	* an object which has subtracted the x and y coordinates of another
2154	* object, needs to travel toward it.	2151	* object, needs to travel toward it.
2155	*/	2152	*/
2156		2153	int
2157	int find_dir_2(int x, int y) {	2154	find_dir_2 (int x, int y)
		2155	{
2158	int q;	2156	int q;
2159		2157
2160	if(y)	2158	if (y)
2161	q=x*100/y;	2159	q = x * 100 / y;
2162	else if (x)	2160	else if (x)
2163	q= -300*x;	2161	q = -300 * x;
2164	else	2162	else
2165	return 0;	2163	return 0;
2166		2164
2167	if(y>0) {	2165	if (y > 0)
		2166	{
2168	if(q < -242)	2167	if (q < -242)
2169	return 3 ;	2168	return 3;
2170	if (q < -41)	2169	if (q < -41)
2171	return 2 ;	2170	return 2;
2172	if (q < 41)	2171	if (q < 41)
2173	return 1 ;	2172	return 1;
2174	if (q < 242)	2173	if (q < 242)
2175	return 8 ;	2174	return 8;
2176	return 7 ;	2175	return 7;
2177	}	2176	}
2178		2177
2179	if (q < -242)	2178	if (q < -242)
2180	return 7 ;	2179	return 7;
2181	if (q < -41)	2180	if (q < -41)
2182	return 6 ;	2181	return 6;
2183	if (q < 41)	2182	if (q < 41)
2184	return 5 ;	2183	return 5;
2185	if (q < 242)	2184	if (q < 242)
2186	return 4 ;	2185	return 4;
2187		2186
2188	return 3 ;	2187	return 3;
2189	}	2188	}
2190		2189
2191	/*	2190	/*
2192	* absdir(int): Returns a number between 1 and 8, which represent	2191	* absdir(int): Returns a number between 1 and 8, which represent
2193	* the "absolute" direction of a number (it actually takes care of	2192	* the "absolute" direction of a number (it actually takes care of
2194	* "overflow" in previous calculations of a direction).	2193	* "overflow" in previous calculations of a direction).
2195	*/	2194	*/
2196		2195
		2196	int
2197	int absdir(int d) {	2197	absdir (int d)
2198	while(d<1) d+=8;	2198	{
2199	while(d>8) d-=8;	2199	while (d < 1)
		2200	d += 8;
		2201
		2202	while (d > 8)
		2203	d -= 8;
		2204
2200	return d;	2205	return d;
2201	}	2206	}
2202		2207
2203	/*	2208	/*
2204	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is	2209	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is
2205	* between two directions (which are expected to be absolute (see absdir())	2210	* between two directions (which are expected to be absolute (see absdir())
2206	*/	2211	*/
2207		2212
		2213	int
2208	int dirdiff(int dir1, int dir2) {	2214	dirdiff (int dir1, int dir2)
		2215	{
2209	int d;	2216	int d;
		2217
2210	d = abs(dir1 - dir2);	2218	d = abs (dir1 - dir2);
2211	if(d>4)	2219	if (d > 4)
2212	d = 8 - d;	2220	d = 8 - d;
		2221
2213	return d;	2222	return d;
2214	}	2223	}
2215		2224
2216	/* peterm:	2225	/* peterm:
2217	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.	2226	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.
…		…
2220	* This basically means that if direction is 15, then it could either go	2229	* This basically means that if direction is 15, then it could either go
2221	* direction 4, 14, or 16 to get back to where we are.	2230	* direction 4, 14, or 16 to get back to where we are.
2222	* Moved from spell_util.c to object.c with the other related direction	2231	* Moved from spell_util.c to object.c with the other related direction
2223	* functions.	2232	* functions.
2224	*/	2233	*/
2225
2226	int reduction_dir[SIZEOFFREE][3] = {	2234	int reduction_dir[SIZEOFFREE][3] = {
2227	{0,0,0}, /* 0 */	2235	{0, 0, 0}, /* 0 */
2228	{0,0,0}, /* 1 */	2236	{0, 0, 0}, /* 1 */
2229	{0,0,0}, /* 2 */	2237	{0, 0, 0}, /* 2 */
2230	{0,0,0}, /* 3 */	2238	{0, 0, 0}, /* 3 */
2231	{0,0,0}, /* 4 */	2239	{0, 0, 0}, /* 4 */
2232	{0,0,0}, /* 5 */	2240	{0, 0, 0}, /* 5 */
2233	{0,0,0}, /* 6 */	2241	{0, 0, 0}, /* 6 */
2234	{0,0,0}, /* 7 */	2242	{0, 0, 0}, /* 7 */
2235	{0,0,0}, /* 8 */	2243	{0, 0, 0}, /* 8 */
2236	{8,1,2}, /* 9 */	2244	{8, 1, 2}, /* 9 */
2237	{1,2,-1}, /* 10 */	2245	{1, 2, -1}, /* 10 */
2238	{2,10,12}, /* 11 */	2246	{2, 10, 12}, /* 11 */
2239	{2,3,-1}, /* 12 */	2247	{2, 3, -1}, /* 12 */
2240	{2,3,4}, /* 13 */	2248	{2, 3, 4}, /* 13 */
2241	{3,4,-1}, /* 14 */	2249	{3, 4, -1}, /* 14 */
2242	{4,14,16}, /* 15 */	2250	{4, 14, 16}, /* 15 */
2243	{5,4,-1}, /* 16 */	2251	{5, 4, -1}, /* 16 */
2244	{4,5,6}, /* 17 */	2252	{4, 5, 6}, /* 17 */
2245	{6,5,-1}, /* 18 */	2253	{6, 5, -1}, /* 18 */
2246	{6,20,18}, /* 19 */	2254	{6, 20, 18}, /* 19 */
2247	{7,6,-1}, /* 20 */	2255	{7, 6, -1}, /* 20 */
2248	{6,7,8}, /* 21 */	2256	{6, 7, 8}, /* 21 */
2249	{7,8,-1}, /* 22 */	2257	{7, 8, -1}, /* 22 */
2250	{8,22,24}, /* 23 */	2258	{8, 22, 24}, /* 23 */
2251	{8,1,-1}, /* 24 */	2259	{8, 1, -1}, /* 24 */
2252	{24,9,10}, /* 25 */	2260	{24, 9, 10}, /* 25 */
2253	{9,10,-1}, /* 26 */	2261	{9, 10, -1}, /* 26 */
2254	{10,11,-1}, /* 27 */	2262	{10, 11, -1}, /* 27 */
2255	{27,11,29}, /* 28 */	2263	{27, 11, 29}, /* 28 */
2256	{11,12,-1}, /* 29 */	2264	{11, 12, -1}, /* 29 */
2257	{12,13,-1}, /* 30 */	2265	{12, 13, -1}, /* 30 */
2258	{12,13,14}, /* 31 */	2266	{12, 13, 14}, /* 31 */
2259	{13,14,-1}, /* 32 */	2267	{13, 14, -1}, /* 32 */
2260	{14,15,-1}, /* 33 */	2268	{14, 15, -1}, /* 33 */
2261	{33,15,35}, /* 34 */	2269	{33, 15, 35}, /* 34 */
2262	{16,15,-1}, /* 35 */	2270	{16, 15, -1}, /* 35 */
2263	{17,16,-1}, /* 36 */	2271	{17, 16, -1}, /* 36 */
2264	{18,17,16}, /* 37 */	2272	{18, 17, 16}, /* 37 */
2265	{18,17,-1}, /* 38 */	2273	{18, 17, -1}, /* 38 */
2266	{18,19,-1}, /* 39 */	2274	{18, 19, -1}, /* 39 */
2267	{41,19,39}, /* 40 */	2275	{41, 19, 39}, /* 40 */
2268	{19,20,-1}, /* 41 */	2276	{19, 20, -1}, /* 41 */
2269	{20,21,-1}, /* 42 */	2277	{20, 21, -1}, /* 42 */
2270	{20,21,22}, /* 43 */	2278	{20, 21, 22}, /* 43 */
2271	{21,22,-1}, /* 44 */	2279	{21, 22, -1}, /* 44 */
2272	{23,22,-1}, /* 45 */	2280	{23, 22, -1}, /* 45 */
2273	{45,47,23}, /* 46 */	2281	{45, 47, 23}, /* 46 */
2274	{23,24,-1}, /* 47 */	2282	{23, 24, -1}, /* 47 */
2275	{24,9,-1}}; /* 48 */	2283	{24, 9, -1}
		2284	}; /* 48 */
2276		2285
2277	/* Recursive routine to step back and see if we can	2286	/* Recursive routine to step back and see if we can
2278	* find a path to that monster that we found. If not,	2287	* find a path to that monster that we found. If not,
2279	* we don't bother going toward it. Returns 1 if we	2288	* we don't bother going toward it. Returns 1 if we
2280	* can see a direct way to get it	2289	* can see a direct way to get it
2281	* Modified to be map tile aware -.MSW	2290	* Modified to be map tile aware -.MSW
2282	*/	2291	*/
2283		2292	int
2284
2285	int can_see_monsterP(mapstruct *m, int x, int y,int dir) {	2293	can_see_monsterP (maptile *m, int x, int y, int dir)
		2294	{
2286	sint16 dx, dy;	2295	sint16 dx, dy;
2287	int mflags;	2296	int mflags;
2288		2297
		2298	if (dir < 0)
2289	if(dir<0) return 0; /* exit condition: invalid direction */	2299	return 0; /* exit condition: invalid direction */
2290		2300
2291	dx = x + freearr_x[dir];	2301	dx = x + freearr_x[dir];
2292	dy = y + freearr_y[dir];	2302	dy = y + freearr_y[dir];
2293		2303
2294	mflags = get_map_flags(m, &m, dx, dy, &dx, &dy);	2304	mflags = get_map_flags (m, &m, dx, dy, &dx, &dy);
2295		2305
2296	/* This functional arguably was incorrect before - it was	2306	/* This functional arguably was incorrect before - it was
2297	* checking for P_WALL - that was basically seeing if	2307	* checking for P_WALL - that was basically seeing if
2298	* we could move to the monster - this is being more	2308	* we could move to the monster - this is being more
2299	* literal on if we can see it. To know if we can actually	2309	* literal on if we can see it. To know if we can actually
2300	* move to the monster, we'd need the monster passed in or	2310	* move to the monster, we'd need the monster passed in or
2301	* at least its move type.	2311	* at least its move type.
2302	*/	2312	*/
2303	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW)) return 0;	2313	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW))
		2314	return 0;
2304		2315
2305	/* yes, can see. */	2316	/* yes, can see. */
2306	if(dir < 9) return 1;	2317	if (dir < 9)
		2318	return 1;
		2319
2307	return can_see_monsterP(m, x, y, reduction_dir[dir][0]) |	2320	return can_see_monsterP (m, x, y, reduction_dir[dir][0])
2308	can_see_monsterP(m,x,y, reduction_dir[dir][1]) |	2321	| can_see_monsterP (m, x, y, reduction_dir[dir][1])
2309	can_see_monsterP(m,x,y, reduction_dir[dir][2]);	2322	| can_see_monsterP (m, x, y, reduction_dir[dir][2]);
2310	}	2323	}
2311		2324
2312
2313
2314	/*	2325	/*
2315	* can_pick(picker, item): finds out if an object is possible to be	2326	* can_pick(picker, item): finds out if an object is possible to be
2316	* picked up by the picker. Returnes 1 if it can be	2327	* picked up by the picker. Returnes 1 if it can be
2317	* picked up, otherwise 0.	2328	* picked up, otherwise 0.
2318	*	2329	*
…		…
2320	* core dumps if they do.	2331	* core dumps if they do.
2321	*	2332	*
2322	* Add a check so we can't pick up invisible objects (0.93.8)	2333	* Add a check so we can't pick up invisible objects (0.93.8)
2323	*/	2334	*/
2324		2335
		2336	int
2325	int can_pick(const object *who, const object *item) {	2337	can_pick (const object *who, const object *item)
		2338	{
2326	return /*QUERY_FLAG(who,FLAG_WIZ)||*/	2339	return /*QUERY_FLAG(who,FLAG_WIZ)|| */
2327	(item->weight>0&&!QUERY_FLAG(item,FLAG_NO_PICK)&&	2340	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&
2328	!QUERY_FLAG(item,FLAG_ALIVE)&&!item->invisible &&	2341	!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	}	2342	}
2331
2332		2343
2333	/*	2344	/*
2334	* create clone from object to another	2345	* create clone from object to another
2335	*/	2346	*/
		2347	object *
2336	object *object_create_clone (object *asrc) {	2348	object_create_clone (object *asrc)
		2349	{
2337	object *dst = NULL,*tmp,*src,*part,*prev, *item;	2350	object *dst = 0, *tmp, *src, *part, *prev, *item;
2338		2351
2339	if(!asrc) return NULL;	2352	if (!asrc)
		2353	return 0;
		2354
2340	src = asrc;	2355	src = asrc;
2341	if(src->head)	2356	if (src->head)
2342	src = src->head;	2357	src = src->head;
2343		2358
2344	prev = NULL;	2359	prev = 0;
2345	for(part = src; part; part = part->more) {	2360	for (part = src; part; part = part->more)
2346	tmp = get_object();	2361	{
2347	copy_object(part,tmp);	2362	tmp = part->clone ();
2348	tmp->x -= src->x;	2363	tmp->x -= src->x;
2349	tmp->y -= src->y;	2364	tmp->y -= src->y;
		2365
2350	if(!part->head) {	2366	if (!part->head)
		2367	{
2351	dst = tmp;	2368	dst = tmp;
2352	tmp->head = NULL;
2353	} else {
2354	tmp->head = dst;	2369	tmp->head = 0;
2355	}	2370	}
		2371	else
		2372	tmp->head = dst;
		2373
2356	tmp->more = NULL;	2374	tmp->more = 0;
		2375
2357	if(prev)	2376	if (prev)
2358	prev->more = tmp;	2377	prev->more = tmp;
		2378
2359	prev = tmp;	2379	prev = tmp;
2360	}	2380	}
2361	/*** copy inventory ***/	2381
2362	for(item = src->inv; item; item = item->below) {	2382	for (item = src->inv; item; item = item->below)
2363	(void) insert_ob_in_ob(object_create_clone(item),dst);	2383	insert_ob_in_ob (object_create_clone (item), dst);
2364	}
2365		2384
2366	return dst;	2385	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	}	2386	}
2376		2387
2377	/* GROS - Creates an object using a string representing its content. */	2388	/* 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 */	2389	/* 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, */	2390	/* 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. */	2391	/* 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. */	2392	/* Remember not to use load_object_str in a time-critical situation. */
2382	/* Also remember that multiparts objects are not supported for now. */	2393	/* Also remember that multiparts objects are not supported for now. */
2383		2394	object *
2384	object* load_object_str(const char *obstr)	2395	load_object_str (const char *obstr)
2385	{	2396	{
2386	object *op;	2397	object *op;
2387	char filename[MAX_BUF];	2398	char filename[MAX_BUF];
		2399
2388	sprintf(filename,"%s/cfloadobstr2044",settings.tmpdir);	2400	sprintf (filename, "%s/cfloadobstr2044", settings.tmpdir);
2389		2401
2390	FILE *tempfile=fopen(filename,"w");	2402	FILE *tempfile = fopen (filename, "w");
		2403
2391	if (tempfile == NULL)	2404	if (tempfile == NULL)
2392	{	2405	{
2393	LOG(llevError,"Error - Unable to access load object temp file\n");	2406	LOG (llevError, "Error - Unable to access load object temp file\n");
2394	return NULL;	2407	return NULL;
2395	};	2408	}
		2409
2396	fprintf(tempfile,obstr);	2410	fprintf (tempfile, obstr);
2397	fclose(tempfile);	2411	fclose (tempfile);
2398		2412
2399	op=get_object();	2413	op = object::create ();
2400		2414
2401	object_thawer thawer (filename);	2415	object_thawer thawer (filename);
2402		2416
2403	if (thawer)	2417	if (thawer)
2404	load_object(thawer,op,0);	2418	load_object (thawer, op, 0);
2405		2419
2406	LOG(llevDebug," load str completed, object=%s\n", &op->name);	2420	LOG (llevDebug, " load str completed, object=%s\n", &op->name);
2407	CLEAR_FLAG(op,FLAG_REMOVED);	2421	CLEAR_FLAG (op, FLAG_REMOVED);
2408		2422
2409	return op;	2423	return op;
2410	}	2424	}
2411		2425
2412	/* This returns the first object in who's inventory that	2426	/* This returns the first object in who's inventory that
2413	* has the same type and subtype match.	2427	* has the same type and subtype match.
2414	* returns NULL if no match.	2428	* returns NULL if no match.
2415	*/	2429	*/
		2430	object *
2416	object *find_obj_by_type_subtype(const object *who, int type, int subtype)	2431	find_obj_by_type_subtype (const object *who, int type, int subtype)
2417	{	2432	{
2418	object *tmp;
2419
2420	for (tmp=who->inv; tmp; tmp=tmp->below)	2433	for (object *tmp = who->inv; tmp; tmp = tmp->below)
2421	if (tmp->type == type && tmp->subtype == subtype) return tmp;	2434	if (tmp->type == type && tmp->subtype == subtype)
		2435	return tmp;
2422		2436
2423	return NULL;	2437	return 0;
2424	}	2438	}
2425		2439
2426	/* If ob has a field named key, return the link from the list,	2440	/* If ob has a field named key, return the link from the list,
2427	* otherwise return NULL.	2441	* otherwise return NULL.
2428	*	2442	*
2429	* key must be a passed in shared string - otherwise, this won't	2443	* key must be a passed in shared string - otherwise, this won't
2430	* do the desired thing.	2444	* do the desired thing.
2431	*/	2445	*/
		2446	key_value *
2432	key_value * get_ob_key_link(const object * ob, const char * key) {	2447	get_ob_key_link (const object *ob, const char *key)
2433	key_value * link;	2448	{
2434
2435	for (link = ob->key_values; link != NULL; link = link->next) {	2449	for (key_value *link = ob->key_values; link; link = link->next)
2436	if (link->key == key) {	2450	if (link->key == key)
2437	return link;	2451	return link;
2438	}	2452
2439	}	2453	return 0;
2440		2454	}
2441	return NULL;
2442	}
2443		2455
2444	/*	2456	/*
2445	* Returns the value of op has an extra_field for key, or NULL.	2457	* Returns the value of op has an extra_field for key, or NULL.
2446	*	2458	*
2447	* The argument doesn't need to be a shared string.	2459	* The argument doesn't need to be a shared string.
2448	*	2460	*
2449	* The returned string is shared.	2461	* The returned string is shared.
2450	*/	2462	*/
		2463	const char *
2451	const char * get_ob_key_value(const object * op, const char * const key) {	2464	get_ob_key_value (const object *op, const char *const key)
		2465	{
2452	key_value * link;	2466	key_value *link;
2453	const char * canonical_key;	2467	shstr_cmp canonical_key (key);
		2468
		2469	if (!canonical_key)
2454		2470	{
2455	canonical_key = shstr::find (key);
2456
2457	if (canonical_key == NULL) {
2458	/* 1. There being a field named key on any object	2471	/* 1. There being a field named key on any object
2459	* implies there'd be a shared string to find.	2472	* implies there'd be a shared string to find.
2460	* 2. Since there isn't, no object has this field.	2473	* 2. Since there isn't, no object has this field.
2461	* 3. Therefore, *this* object doesn't have this field.	2474	* 3. Therefore, *this* object doesn't have this field.
2462	*/	2475	*/
2463	return NULL;	2476	return 0;
2464	}	2477	}
2465		2478
2466	/* This is copied from get_ob_key_link() above -	2479	/* This is copied from get_ob_key_link() above -
2467	* only 4 lines, and saves the function call overhead.	2480	* only 4 lines, and saves the function call overhead.
2468	*/	2481	*/
2469	for (link = op->key_values; link != NULL; link = link->next) {	2482	for (link = op->key_values; link; link = link->next)
2470	if (link->key == canonical_key) {	2483	if (link->key == canonical_key)
2471	return link->value;	2484	return link->value;
2472	}	2485
2473	}	2486	return 0;
2474	return NULL;
2475	}	2487	}
2476		2488
2477		2489
2478	/*	2490	/*
2479	* Updates the canonical_key in op to value.	2491	* 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	2495	* Unless add_key is TRUE, it won't add fields, only change the value of existing
2484	* keys.	2496	* keys.
2485	*	2497	*
2486	* Returns TRUE on success.	2498	* Returns TRUE on success.
2487	*/	2499	*/
		2500	int
2488	int set_ob_key_value_s(object * op, const shstr &canonical_key, const char * value, int add_key) {	2501	set_ob_key_value_s (object *op, const shstr & canonical_key, const char *value, int add_key)
		2502	{
2489	key_value * field = NULL, *last=NULL;	2503	key_value *field = NULL, *last = NULL;
2490		2504
2491	for (field=op->key_values; field != NULL; field=field->next) {	2505	for (field = op->key_values; field != NULL; field = field->next)
		2506	{
2492	if (field->key != canonical_key) {	2507	if (field->key != canonical_key)
		2508	{
2493	last = field;	2509	last = field;
2494	continue;	2510	continue;
2495	}	2511	}
2496		2512
2497	if (value)	2513	if (value)
2498	field->value = value;	2514	field->value = value;
2499	else {	2515	else
		2516	{
2500	/* Basically, if the archetype has this key set,	2517	/* Basically, if the archetype has this key set,
2501	* we need to store the null value so when we save	2518	* we need to store the null value so when we save
2502	* it, we save the empty value so that when we load,	2519	* it, we save the empty value so that when we load,
2503	* we get this value back again.	2520	* we get this value back again.
2504	*/	2521	*/
2505	if (get_ob_key_link (&op->arch->clone, canonical_key))	2522	if (get_ob_key_link (&op->arch->clone, canonical_key))
2506	field->value = 0;	2523	field->value = 0;
		2524	else
		2525	{
		2526	if (last)
		2527	last->next = field->next;
2507	else	2528	else
2508	{
2509	if (last) last->next = field->next;
2510	else op->key_values = field->next;	2529	op->key_values = field->next;
2511		2530
2512	delete field;	2531	delete field;
2513	}	2532	}
2514	}	2533	}
2515	return TRUE;	2534	return TRUE;
2516	}	2535	}
2517	/* IF we get here, key doesn't exist */	2536	/* IF we get here, key doesn't exist */
2518		2537
2519	/* No field, we'll have to add it. */	2538	/* No field, we'll have to add it. */
2520		2539
2521	if (!add_key) {	2540	if (!add_key)
2522	return FALSE;	2541	return FALSE;
2523	}	2542
2524	/* There isn't any good reason to store a null	2543	/* There isn't any good reason to store a null
2525	* value in the key/value list. If the archetype has	2544	* value in the key/value list. If the archetype has
2526	* this key, then we should also have it, so shouldn't	2545	* this key, then we should also have it, so shouldn't
2527	* be here. If user wants to store empty strings,	2546	* be here. If user wants to store empty strings,
2528	* should pass in ""	2547	* should pass in ""
2529	*/	2548	*/
2530	if (value == NULL) return TRUE;	2549	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;	2550	return TRUE;
		2551
		2552	field = new key_value;
		2553
		2554	field->key = canonical_key;
		2555	field->value = value;
		2556	/* Usual prepend-addition. */
		2557	field->next = op->key_values;
		2558	op->key_values = field;
		2559
		2560	return TRUE;
2541	}	2561	}
2542		2562
2543	/*	2563	/*
2544	* Updates the key in op to value.	2564	* Updates the key in op to value.
2545	*	2565	*
…		…
2547	* and not add new ones.	2567	* and not add new ones.
2548	* In general, should be little reason FALSE is ever passed in for add_key	2568	* In general, should be little reason FALSE is ever passed in for add_key
2549	*	2569	*
2550	* Returns TRUE on success.	2570	* Returns TRUE on success.
2551	*/	2571	*/
		2572	int
2552	int set_ob_key_value(object * op, const char *key, const char * value, int add_key)	2573	set_ob_key_value (object *op, const char *key, const char *value, int add_key)
2553	{	2574	{
2554	shstr key_ (key);	2575	shstr key_ (key);
		2576
2555	return set_ob_key_value_s (op, key_, value, add_key);	2577	return set_ob_key_value_s (op, key_, value, add_key);
2556	}	2578	}
		2579
		2580	object::depth_iterator::depth_iterator (object *container)
		2581	: iterator_base (container)
		2582	{
		2583	while (item->inv)
		2584	item = item->inv;
		2585	}
		2586
		2587	void
		2588	object::depth_iterator::next ()
		2589	{
		2590	if (item->below)
		2591	{
		2592	item = item->below;
		2593
		2594	while (item->inv)
		2595	item = item->inv;
		2596	}
		2597	else
		2598	item = item->env;
		2599	}
		2600
		2601	// return a suitable string describing an objetc in enough detail to find it
		2602	const char *
		2603	object::debug_desc (char *info) const
		2604	{
		2605	char info2[256 * 3];
		2606	char *p = info;
		2607
		2608	p += snprintf (p, 256, "%d=\"%s%s%s\"",
		2609	count,
		2610	&name,
		2611	title ? " " : "",
		2612	title ? (const char *)title : "");
		2613
		2614	if (env)
		2615	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));
		2616
		2617	if (map)
		2618	p += snprintf (p, 256, "(on %s@%d+%d)", map->path, x, y);
		2619
		2620	return info;
		2621	}
		2622
		2623	const char *
		2624	object::debug_desc () const
		2625	{
		2626	static char info[256 * 3];
		2627	return debug_desc (info);
		2628	}
		2629

Diff Legend

–	Removed lines
+	Added lines
<	Changed lines
>	Changed lines