[ViewVC] Diff of: cvs/deliantra/server/common/arch.C

Comparing deliantra/server/common/arch.C (file contents):
Revision 1.32 by root, Mon Dec 25 11:25:49 2006 UTC vs.
Revision 1.81 by root, Sat May 17 00:17:02 2008 UTC

…		…
1	/*	1	/*
2	CrossFire, A Multiplayer game for X-windows	2	* This file is part of Deliantra, the Roguelike Realtime MMORPG.
3		3	*
		4	* Copyright (©) 2005,2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
4	Copyright (C) 2002 Mark Wedel & Crossfire Development Team	5	* Copyright (©) 2002,2007 Mark Wedel & Crossfire Development Team
5	Copyright (C) 1992 Frank Tore Johansen	6	* Copyright (©) 1992,2007 Frank Tore Johansen
6		7	*
7	This program is free software; you can redistribute it and/or modify	8	* Deliantra is free software: you can redistribute it and/or modify
8	it under the terms of the GNU General Public License as published by	9	* it under the terms of the GNU General Public License as published by
9	the Free Software Foundation; either version 2 of the License, or	10	* the Free Software Foundation, either version 3 of the License, or
10	(at your option) any later version.	11	* (at your option) any later version.
11		12	*
12	This program is distributed in the hope that it will be useful,	13	* This program is distributed in the hope that it will be useful,
13	but WITHOUT ANY WARRANTY; without even the implied warranty of	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15	GNU General Public License for more details.	16	* GNU General Public License for more details.
16		17	*
17	You should have received a copy of the GNU General Public License	18	* You should have received a copy of the GNU General Public License
18	along with this program; if not, write to the Free Software	19	* along with this program. If not, see <http://www.gnu.org/licenses/>.
19	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.	20	*
20		21	* The authors can be reached via e-mail to <support@deliantra.net>
21	The authors can be reached via e-mail at <crossfire@schmorp.de>
22	*/	22	*/
23		23
24	#include <cassert>	24	#include <cassert>
25		25
26	#include <global.h>	26	#include <global.h>
27	#include <funcpoint.h>
28	#include <loader.h>	27	#include <loader.h>
29		28
30	#define USE_UNORDERED_MAP 0
31
32	#if USE_UNORDERED_MAP
33	# include <tr1/functional>	29	#include <tr1/functional>
34	# include <tr1/unordered_map>	30	#include <tr1/unordered_map>
35	#endif
36		31
37	int arch_cmp = 0; /* How many strcmp's */	32	archetype *loading_arch; // ugly flag to object loader etc. to suppress/request special processing
38	int arch_search = 0; /* How many searches */	33	arch_ptr archetype::empty;
39	int arch_init; /* True if doing arch initialization */
40		34
41	/* The naming of these functions is really poor - they are all
42	* pretty much named '.._arch_...', but they may more may not
43	* return archetypes. Some make the arch_to_object call, and thus
44	* return an object. Perhaps those should be called 'archob' functions
45	* to denote they return an object derived from the archetype.
46	* MSW 2003-04-29
47	*/
48
49	#if USE_UNORDERED_MAP
50	// the hashtable	35	// the hashtable
51	typedef std::tr1::unordered_map	36	typedef std::tr1::unordered_map
52	<	37	<
53	std::size_t,	38	const char *,
54	arch_ptr,	39	arch_ptr,
55	std::tr1::hash<size_t>,	40	str_hash,
56	std::equal_to<size_t>,	41	str_equal,
57	slice_allocator< std::pair<const std::size_t, archetype *> >	42	slice_allocator< std::pair<const char *const, arch_ptr> >
58	true,
59	> HT;	43	> HT;
60		44
61	static HT ht;	45	static HT ht (10000);
62	#else	46	archvec archetypes;
63	static arch_ptr arch_table[ARCHTABLE];	47	static unordered_vector<archetype *> allarch;
64	#endif	48	static int dirtycnt;
		49
		50	// the vector of other_arch references to be resolved
		51	static std::vector< std::pair<arch_ptr *, shstr> > postponed_arch_ref;
		52	// the vector of loaded but not yet committed archetypes
		53	static std::vector<archetype *> postponed_arch;
65		54
66	/**	55	/**
67	* GROS - This function retrieves an archetype given the name that appears	56	* GROS - This function retrieves an archetype given the name that appears
68	* during the game (for example, "writing pen" instead of "stylus").	57	* during the game (for example, "writing pen" instead of "stylus").
69	* It does not use the hashtable system, but browse the whole archlist each time.	58	* It does not use the hashtable system, but browse the whole archlist each time.
75	* - the archetype found or null if nothing was found.	64	* - the archetype found or null if nothing was found.
76	*/	65	*/
77	archetype *	66	archetype *
78	find_archetype_by_object_name (const char *name)	67	find_archetype_by_object_name (const char *name)
79	{	68	{
80	archetype *at;	69	shstr_cmp name_cmp (name);
81		70
82	if (name == NULL)	71	for_all_archetypes (at)
83	return (archetype *) NULL;	72	if (at->name == name_cmp)
84
85	for (at = first_archetype; at != NULL; at = at->next)
86	{
87	if (!strcmp (at->clone.name, name))
88	return at;	73	return at;
89	}	74
90	return NULL;	75	return 0;
91	}	76	}
92		77
93	/**	78	/**
94	* This function retrieves an archetype by type and name that appears during	79	* This function retrieves an archetype by type and name that appears during
95	* the game. It is basically the same as find_archetype_by_object_name()	80	* the game. It is basically the same as find_archetype_by_object_name()
96	* except that it considers only items of the given type.	81	* except that it considers only items of the given type.
97	*/	82	*/
98	archetype *	83	archetype *
99	find_archetype_by_object_type_name (int type, const char *name)	84	find_archetype_by_object_type_name (int type, const char *name)
100	{	85	{
101	archetype *at;	86	shstr_cmp name_cmp (name);
102		87
103	if (name == NULL)	88	for_all_archetypes (at)
104	return NULL;	89	if (at->name == name_cmp && at->type == type)
105
106	for (at = first_archetype; at != NULL; at = at->next)
107	{
108	if (at->clone.type == type && strcmp (at->clone.name, name) == 0)
109	return at;	90	return at;
110	}
111		91
112	return NULL;	92	return 0;
113	}	93	}
114		94
115	/* This is a lot like the above function. Instead, we are trying to match	95	/* This is a lot like the above function. Instead, we are trying to match
116	* the arch->skill values. type is the type of object to match	96	* the arch->skill values. type is the type of object to match
117	* against (eg, to only match against skills or only skill objects for example).	97	* against (eg, to only match against skills or only skill objects for example).
118	* If type is -1, ew don't match on type.	98	* If type is -1, ew don't match on type.
119	*/	99	*/
120	object *	100	object *
121	get_archetype_by_skill_name (const char *skill, int type)	101	get_archetype_by_skill_name (const char *skill, int type)
122	{	102	{
123	archetype *	103	shstr_cmp skill_cmp (skill);
124	at;
125		104
126	if (skill == NULL)	105	for_all_archetypes (at)
127	return NULL;	106	if (at->skill == skill_cmp && (type == -1 \|\| type == at->type))
		107	return at->instance ();
128		108
129	for (at = first_archetype; at != NULL; at = at->next)
130	{
131	if (((type == -1) \|\| (type == at->clone.type)) && (!strcmp (at->clone.skill, skill)))
132	return arch_to_object (at);
133	}
134	return NULL;	109	return 0;
135	}	110	}
136		111
137	/* similiar to above - this returns the first archetype	112	/* similiar to above - this returns the first archetype
138	* that matches both the type and subtype. type and subtype	113	* that matches both the type and subtype. type and subtype
139	* can be -1 to say ignore, but in this case, the match it does	114	* can be -1 to say ignore, but in this case, the match it does
…		…
142	* (eg, skills)	117	* (eg, skills)
143	*/	118	*/
144	archetype *	119	archetype *
145	get_archetype_by_type_subtype (int type, int subtype)	120	get_archetype_by_type_subtype (int type, int subtype)
146	{	121	{
147	archetype *	122	for_all_archetypes (at)
148	at;
149
150	for (at = first_archetype; at != NULL; at = at->next)
151	{
152	if (((type == -1) \|\| (type == at->clone.type)) && (subtype == -1 \|\| subtype == at->clone.subtype))	123	if ((type == -1 \|\| type == at->type) && (subtype == -1 \|\| subtype == at->subtype))
153	return at;	124	return at;
154	}	125
155	return NULL;	126	return 0;
156	}	127	}
157		128
158	/**	129	/**
159	* GROS - this returns a new object given the name that appears during the game	130	* GROS - this returns a new object given the name that appears during the game
160	* (for example, "writing pen" instead of "stylus").	131	* (for example, "writing pen" instead of "stylus").
…		…
162	* - name: The name we're searching for (ex: "writing pen");	133	* - name: The name we're searching for (ex: "writing pen");
163	* Return value:	134	* Return value:
164	* - a corresponding object if found; a singularity object if not found.	135	* - a corresponding object if found; a singularity object if not found.
165	* Note by MSW - it appears that it takes the full name and keeps	136	* Note by MSW - it appears that it takes the full name and keeps
166	* shortening it until it finds a match. I re-wrote this so that it	137	* shortening it until it finds a match. I re-wrote this so that it
167	* doesn't malloc it each time - not that this function is used much,	138	* doesn't allocate it each time - not that this function is used much,
168	* but it otherwise had a big memory leak.	139	* but it otherwise had a big memory leak.
169	*/	140	*/
170	object *	141	object *
171	get_archetype_by_object_name (const char *name)	142	get_archetype_by_object_name (const char *name)
172	{	143	{
173	archetype *at;
174	char tmpname[MAX_BUF];	144	char tmpname[MAX_BUF];
175	int i;	145	int i;
176		146
177	assign (tmpname, name);	147	assign (tmpname, name);
178		148
179	for (i = strlen (tmpname); i > 0; i--)	149	for (i = strlen (tmpname); i > 0; i--)
180	{	150	{
181	tmpname[i] = 0;	151	tmpname[i] = 0;
		152
182	at = find_archetype_by_object_name (tmpname);	153	if (archetype *at = find_archetype_by_object_name (tmpname))
183		154	return at->instance ();
184	if (at != NULL)
185	return arch_to_object (at);
186	}	155	}
187		156
188	return create_singularity (name);	157	return create_singularity (name);
189	}	158	}
190		159
191	/* This is a subset of the parse_id command. Basically, name can be	160	/* This is a subset of the parse_id command. Basically, name can be
192	* a string seperated lists of things to match, with certain keywords.	161	* a string seperated lists of things to match, with certain keywords.
193	* pl is the player (only needed to set count properly)	162	* pl is the player (only needed to set count properly)
194	* op is the item we are trying to match. Calling function takes care	163	* op is the item we are trying to match. Calling function takes care
195	* of what action might need to be done and if it is valid	164	* of what action might need to be done and if it is valid
196	* (pickup, drop, etc.) Return NONZERO if we have a match. A higher	165	* (pickup, drop, etc.) Return NONZERO if we have a match. A higher
197	* value means a better match. 0 means no match.	166	* value means a better match. 0 means no match.
198	*	167	*
199	* Brief outline of the procedure:	168	* Brief outline of the procedure:
200	* We take apart the name variable into the individual components.	169	* We take apart the name variable into the individual components.
201	* cases for 'all' and unpaid are pretty obvious.	170	* cases for 'all' and unpaid are pretty obvious.
202	* Next, we check for a count (either specified in name, or in the	171	* Next, we check for a count (either specified in name, or in the
203	* player object.)	172	* player object.)
204	* If count is 1, make a quick check on the name.	173	* If count is 1, make a quick check on the name.
205	* IF count is >1, we need to make plural name. Return if match.	174	* IF count is >1, we need to make plural name. Return if match.
206	* Last, make a check on the full name.	175	* Last, make a check on the full name.
207	*/	176	*/
208	int	177	int
209	item_matched_string (object pl, object op, const char *name)	178	item_matched_string (object pl, object op, const char *name)
210	{	179	{
211	char *cp, local_name[MAX_BUF];	180	char *cp, local_name[MAX_BUF];
212	int count, retval = 0;	181	int count, retval = 0;
213		182
214	strcpy (local_name, name); /* strtok is destructive to name */	183	assign (local_name, name); /* strtok is destructive to name */
215		184
216	for (cp = strtok (local_name, ","); cp; cp = strtok (NULL, ","))	185	for (cp = strtok (local_name, ","); cp; cp = strtok (NULL, ","))
217	{	186	{
218	while (cp[0] == ' ')	187	while (cp[0] == ' ')
219	++cp; /* get rid of spaces */	188	++cp; /* get rid of spaces */
…		…
304	}	273	}
305		274
306	return 0;	275	return 0;
307	}	276	}
308		277
		278	archetype::archetype (const char *name)
		279	{
		280	arch = this;
		281	this->archname = this->name = this->name_pl = name;
		282	}
		283
		284	archetype::~archetype ()
		285	{
		286	unlink ();
		287	}
		288
		289	void
		290	archetype::link ()
		291	{
		292	if (!archetypes.contains (this))
		293	{
		294	archetypes.insert (this);
		295	ht.insert (std::make_pair (archname, this));
		296	}
		297	}
		298
		299	void
		300	archetype::unlink ()
		301	{
		302	if (archetypes.contains (this))
		303	{
		304	archetypes.erase (this);
		305	ht.erase (archname);
		306	}
		307	}
		308
309	/*	309	/*
310	* Initialises the internal linked list of archetypes (read from file).	310	* Finds, using the hashtable, which archetype matches the given name.
311	* Then the global "empty_archetype" pointer is initialised.	311	* returns a pointer to the found archetype, otherwise NULL.
312	* Then the blocksview[] array is initialised.
313	*/	312	*/
		313	archetype *
		314	archetype::find (const char *name)
		315	{
		316	if (!name)
		317	return 0;
		318
		319	auto (i, ht.find (name));
		320
		321	if (i == ht.end ())
		322	return 0;
		323	else
		324	return i->second;
		325	}
		326
		327	archetype *
		328	archetype::read (object_thawer &f)
		329	{
		330	assert (f.kw == KW_object);
		331
		332	std::vector<archetype *> parts;
		333
		334	coroapi::cede_to_tick ();
		335
		336	for (;;)
		337	{
		338	archetype *at = new archetype (f.get_str ());
		339
		340	f.next ();
		341
		342	#if 0
		343	// implementing it here in the server does neither allow multiple inheritence
		344	// nor does it cleanly "just override". it would allow use in map files, though,
		345	// and other resource files dynamically laoded (as opposed to being preprocessed).
		346	// not that any of this is relevant as of yet...
		347	if (f.kw == KW_inherit)
		348	{
		349	if (archetype *at = find (f.get_str ()))
		350	*op = at->clone;
		351	else
		352	LOG (llevError, "archetype '%s' tries to inherit from non-existent archetype '%s'.\n",
		353	&at->archname, f.get_str ());
		354
		355	f.next ();
		356	}
		357	#endif
		358
		359	loading_arch = at; // hack to tell parse_kv et al. to behave
		360	bool parse_ok = at->parse_kv (f);
		361	loading_arch = 0;
		362
		363	if (!parse_ok)
		364	goto fail;
		365
		366	loading_arch = at; // hack to tell parse_kv et al. to behave
		367	at->post_load_check ();
		368	loading_arch = 0;
		369
		370	parts.push_back (at);
		371
		372	if (f.kw != KW_more)
		373	break;
		374
		375	f.next ();
		376
		377	if (f.kw != KW_object)
		378	{
		379	f.parse_error ("more object");
		380	goto fail;
		381	}
		382	}
		383
		384	{
		385	auto (at, parts.begin ());
		386
		387	archetype *new_head = parts.front ();
		388	archetype *old_head = find (new_head->archname);
		389
		390	if (old_head && !old_head->is_head ())
		391	{
		392	LOG (llevError, "%s: unable to overwrite non-head archetype '%s' with head archetype, skipping.\n",
		393	&new_head->archname, &old_head->archname);
		394	goto fail;
		395	}
		396
		397	// check that all archetypes belong to the same old object or are new
		398	for (auto (at, parts.begin ()); at != parts.end (); ++at)
		399	{
		400	archetype new_part = at;
		401	archetype *old_part = find (new_part->archname);
		402
		403	if (old_part && old_part->head_ () != old_head)
		404	{
		405	LOG (llevError, "%s: unable to overwrite archetype '%s' with archetype of different object, skipping.\n",
		406	&new_part->archname, &((archetype *)old_part->head_ ())->archname);
		407	goto fail;
		408	}
		409	}
		410
		411	// assemble new chain
		412	new_head->min_x = new_head->max_x = new_head->x;
		413	new_head->min_y = new_head->max_y = new_head->y;
		414
		415	archetype *less = new_head;
		416	for (auto (p, parts.begin () + 1); p != parts.end (); ++p)
		417	{
		418	archetype at = p;
		419
		420	// some flags get inherited from the head (probably a lot more)
		421	// doing it here doesn't feel too cozy, but it allows code
		422	// to ignore head checks for these flags, which saves time
		423	at->flag [FLAG_ALIVE] = new_head->flag [FLAG_ALIVE];
		424	at->flag [FLAG_NO_PICK] = new_head->flag [FLAG_NO_PICK];
		425	at->flag [FLAG_MONSTER] = new_head->flag [FLAG_MONSTER];
		426	at->flag [FLAG_IS_FLOOR] = new_head->flag [FLAG_IS_FLOOR];
		427
		428	new_head->min_x = min (new_head->min_x, at->x);
		429	new_head->min_y = min (new_head->min_y, at->y);
		430	new_head->max_x = max (new_head->max_x, at->x);
		431	new_head->max_y = max (new_head->max_y, at->y);
		432
		433	at->head = new_head;
		434	less->more = at;
		435	less = at;
		436	}
		437
		438	postponed_arch.insert (postponed_arch.end (), parts.begin (), parts.end ());
		439
		440	return new_head;
		441	}
		442
		443	fail:
		444	for (auto (p, parts.begin ()); p != parts.end (); ++p)
		445	(*p)->destroy (true);
		446
		447	return 0;
		448	}
314		449
315	void	450	void
316	init_archetypes (void)	451	archetype::postpone_arch_ref (arch_ptr &ref, const_utf8_string other_arch)
317	{ /* called from add_player() and edit() */	452	{
318	if (first_archetype != NULL) /* Only do this once */	453	ref = 0;
319	return;	454	postponed_arch_ref.push_back (std::pair<arch_ptr *, shstr>(&ref, shstr (other_arch)));
320
321	arch_init = 1;
322	load_archetypes ();
323	arch_init = 0;
324	empty_archetype = archetype::find ("empty_archetype");
325
326	/* init_blocksview();*/
327	}	455	}
328
329	/*
330	* Stores debug-information about how efficient the hashtable
331	* used for archetypes has been in the static errmsg array.
332	*/
333		456
334	void	457	void
335	arch_info (object *op)	458	archetype::commit_load ()
336	{	459	{
337	sprintf (errmsg, "%d searches and %d strcmp()'s", arch_search, arch_cmp);	460	// unlink old archetypes and link in new ones */
338	new_draw_info (NDI_BLACK, 0, op, errmsg);	461	for (auto (p, postponed_arch.begin ()); p != postponed_arch.end (); ++p)
339	}	462	{
		463	archetype at = p;
340		464
341	/*	465	if (archetype *old = find (at->archname))
342	* Initialise the hashtable used by the archetypes.	466	old->unlink ();
343	*/	467
		468	allarch.push_back (at);
		469
		470	at->link ();
		471	++dirtycnt;
		472	}
		473
		474	postponed_arch.clear ();
		475
		476	// now resolve arch references
		477	for (auto (p, postponed_arch_ref.begin ()); p != postponed_arch_ref.end (); ++p)
		478	{
		479	arch_ptr *ap = p->first;
		480	archetype *at = find (p->second);
		481
		482	if (!at)
		483	LOG (llevError, "unable to resolve postponed arch reference to '%s'", &p->second);
		484
		485	*ap = at;
		486	}
		487
		488	postponed_arch_ref.clear ();
		489
		490	empty = find (shstr_empty_archetype);
		491	}
344		492
345	void	493	void
346	clear_archetable (void)	494	archetype::gc ()
347	{	495	{
348	memset ((void ) arch_table, 0, ARCHTABLE sizeof (archetype *));	496	int cnt = max (1, min (allarch.size () / 128, dirtycnt));
349	}	497	dirtycnt = max (0, dirtycnt - cnt);
350		498
351	/*	499	do
352	* An alternative way to init the hashtable which is slower, but _works_...
353	*/
354
355	void
356	init_archetable (void)
357	{
358	archetype *at;
359
360	LOG (llevDebug, " Setting up archetable...\n");
361
362	for (at = first_archetype; at != NULL; at = (at->more == NULL) ? at->next : at->more)
363	at->hash_add ();
364
365	LOG (llevDebug, "done\n");
366	}
367
368	void
369	free_all_archs (void)
370	{
371	archetype at, next;
372	int i = 0, f = 0;
373
374	for (at = first_archetype; at != NULL; at = next)
375	{	500	{
376	if (at->more)	501	static int idx;
377	next = at->more;	502
		503	if (idx >= allarch.size ())
		504	if (idx)
		505	idx = 0;
		506	else
		507	return;
		508
		509	archetype *at = allarch [idx];
		510
		511	if (at->refcnt_cnt () > 1) // all arches have ONE refcount from their object
		512	++idx;
378	else	513	else
379	next = at->next;
380
381	delete
382	at;
383
384	i++;
385	}
386
387	LOG (llevDebug, "Freed %d archetypes, %d faces\n", i, f);
388	}
389
390	archetype::archetype ()
391	{
392	CLEAR_FLAG (&clone, FLAG_FREED); /* This shouldn't matter, since copy_to */
393	SET_FLAG (&clone, FLAG_REMOVED); /* doesn't copy these flags... */
394	}
395
396	archetype::~archetype ()
397	{
398	}
399
400	/*
401	* Reads/parses the archetype-file, and copies into a linked list
402	* of archetype-structures.
403	*/
404	void
405	first_arch_pass (object_thawer & fp)
406	{
407	archetype head = 0, last_more = 0;
408
409	archetype *at = new archetype;
410	at->clone.arch = first_archetype = at;
411
412	while (int i = load_object (fp, &at->clone, 0))
413	{
414	at->clone.speed_left = (float) (-0.1);
415	/* copy the body_info to the body_used - this is only really
416	* need for monsters, but doesn't hurt to do it for everything.
417	* by doing so, when a monster is created, it has good starting
418	* values for the body_used info, so when items are created
419	* for it, they can be properly equipped.
420	*/
421	memcpy (&at->clone.body_used, &at->clone.body_info, sizeof (at->clone.body_info));
422
423	switch (i)
424	{	514	{
425	case LL_NORMAL: /* A new archetype, just link it with the previous */	515	LOG (llevDebug, "garbage collect arch %s", at->debug_desc ());
426	if (last_more != NULL)	516	assert (at->arch == at); // verify that refcnt == 1 is truly valid
427	last_more->next = at;	517	allarch.erase (idx);
428	if (head != NULL)
429	head->next = at;
430	head = last_more = at;
431	#if 0
432	if (!op->type)
433	LOG (llevDebug, " WARNING: Archetype %s has no type info!\n", op->arch->name);
434	#endif
435	at->tail_x = 0;
436	at->tail_y = 0;
437	break;
438		518
439	case LL_MORE: /* Another part of the previous archetype, link it correctly */	519	// break chain
440		520	for (object *op = at->head_ (); op; )
441	at->head = head;
442	at->clone.head = &head->clone;
443	if (last_more != NULL)
444	{	521	{
		522	object *next = op->more;
		523	op->head = 0;
445	last_more->more = at;	524	op->more = 0;
446	last_more->clone.more = &at->clone;	525	op = next;
447	}	526	}
448	last_more = at;
449		527
450	/* If this multipart image is still composed of individual small	528	at->destroy ();
451	* images, don't set the tail_.. values. We can't use them anyways,	529	at->arch = 0;
452	* and setting these to zero makes the map sending to the client much
453	* easier as just looking at the head, we know what to do.
454	*/
455	if (at->clone.face != head->clone.face)
456	{
457	head->tail_x = 0;
458	head->tail_y = 0;
459	}
460	else
461	{
462	if (at->clone.x > head->tail_x)
463	head->tail_x = at->clone.x;
464	if (at->clone.y > head->tail_y)
465	head->tail_y = at->clone.y;
466	}
467	break;
468
469	}	530	}
470
471	at = new archetype;
472
473	at->clone.arch = at;
474	}
475
476	delete at;
477	}
478
479	/*
480	* Reads the archetype file once more, and links all pointers between
481	* archetypes.
482	*/
483
484	void
485	second_arch_pass (object_thawer & thawer)
486	{
487	char buf[MAX_BUF], variable = buf, argument, *cp;
488	archetype at = NULL, other;
489
490	while (fgets (buf, MAX_BUF, thawer) != NULL)
491	{	531	}
492	if (*buf == '#')	532	while (--cnt);
493	continue;
494	if ((argument = strchr (buf, ' ')) != NULL)
495	{
496	*argument = '\0', argument++;
497	cp = argument + strlen (argument) - 1;
498	while (isspace (*cp))
499	{
500	*cp = '\0';
501	cp--;
502	}
503	}
504	if (!strcmp ("Object", variable))
505	{
506	if ((at = archetype::find (argument)) == NULL)
507	LOG (llevError, "Warning: failed to find arch %s\n", argument);
508	}
509	else if (!strcmp ("other_arch", variable))
510	{
511	if (at != NULL && at->clone.other_arch == NULL)
512	{
513	if ((other = archetype::find (argument)) == NULL)
514	LOG (llevError, "Warning: failed to find other_arch %s\n", argument);
515	else if (at != NULL)
516	at->clone.other_arch = other;
517	}
518	}
519	else if (!strcmp ("randomitems", variable))
520	{
521	if (at != NULL)
522	{
523	treasurelist *tl = find_treasurelist (argument);
524
525	if (tl == NULL)
526	LOG (llevError, "Failed to link treasure to arch (%s): %s\n", &at->name, argument);
527	else
528	at->clone.randomitems = tl;
529	}
530	}
531	}
532	}	533	}
533		534
534	#ifdef DEBUG
535	void
536	check_generators (void)
537	{
538	archetype *at;
539
540	for (at = first_archetype; at != NULL; at = at->next)
541	if (QUERY_FLAG (&at->clone, FLAG_GENERATOR) && at->clone.other_arch == NULL)
542	LOG (llevError, "Warning: %s is generator but lacks other_arch.\n", &at->name);
543	}
544	#endif
545
546	/*
547	* First initialises the archtype hash-table (init_archetable()).
548	* Reads and parses the archetype file (with the first and second-pass
549	* functions).
550	* Then initialises treasures by calling load_treasures().
551	*/
552
553	void
554	load_archetypes (void)
555	{
556	char filename[MAX_BUF];
557
558	sprintf (filename, "%s/%s", settings.datadir, settings.archetypes);
559	LOG (llevDebug, "Reading archetypes from %s:\n", filename);
560
561	{
562	object_thawer
563	thawer (filename);
564
565	clear_archetable ();
566	LOG (llevDebug, " arch-pass 1...\n");
567	first_arch_pass (thawer);
568	LOG (llevDebug, " done\n");
569	}
570
571	init_archetable ();
572	warn_archetypes = 1;
573
574	{
575	object_thawer
576	thawer (filename);
577
578	LOG (llevDebug, " loading treasure...\n");
579	load_treasures ();
580	LOG (llevDebug, " done\n arch-pass 2...\n");
581	second_arch_pass (thawer);
582	LOG (llevDebug, " done\n");
583	#ifdef DEBUG
584	check_generators ();
585	#endif
586	}
587	LOG (llevDebug, " done\n");
588	}
589
590	/*
591	* Creates and returns a new object which is a copy of the given archetype.
592	* This function returns NULL on failure.
593	*/
594	object *
595	arch_to_object (archetype *at)
596	{
597	object *op;	535	object *
598		536	archetype::instance ()
599	if (at == NULL)	537	{
600	{	538	object *op = clone ();
601	if (warn_archetypes)
602	LOG (llevError, "Couldn't find archetype.\n");
603
604	return NULL;
605	}
606
607	op = at->clone.clone ();
608	op->arch = at;
609	op->instantiate ();	539	op->instantiate ();
610	return op;	540	return op;
611	}	541	}
612		542
613	/*	543	/*
…		…
617	* an object, and never NULL.	547	* an object, and never NULL.
618	*/	548	*/
619	object *	549	object *
620	create_singularity (const char *name)	550	create_singularity (const char *name)
621	{	551	{
622	object *op;	552	LOG (llevError \| logBacktrace, "FATAL: creating singularity for '%s'.\n", name);
623	char buf[MAX_BUF];
624		553
625	sprintf (buf, "%s (%s)", ARCH_SINGULARITY, name);	554	if (!strcmp (name, "bug"))
626	op = object::create ();	555	abort ();
627	op->name = op->name_pl = buf;	556
628	SET_FLAG (op, FLAG_NO_PICK);	557	object *op = archetype::get ("bug");
		558	op->name = op->name_pl = format ("bug, please report (missing archetype %s)", name);
		559
629	return op;	560	return op;
630	}	561	}
631		562
632	/*	563	/*
633	* Finds which archetype matches the given name, and returns a new	564	* Finds which archetype matches the given name, and returns a new
634	* object containing a copy of the archetype.	565	* object containing a copy of the archetype.
635	*/	566	*/
636
637	object *	567	object *
638	get_archetype (const char *name)	568	get_archetype (const char *name)
639	{	569	{
		570	return archetype::get (name);
		571	}
		572
		573	object *
		574	archetype::get (const char *name)
		575	{
640	archetype *at = archetype::find (name);	576	archetype *at = find (name);
641		577
642	if (!at)	578	if (!at)
643	return create_singularity (name);	579	return create_singularity (name);
644		580
645	return arch_to_object (at);	581	return at->instance ();
646	}
647
648	/*
649	* Hash-function used by the arch-hashtable.
650	*/
651
652	unsigned long
653	hasharch (const char *str, int tablesize)
654	{
655	unsigned long hash = 0;
656	unsigned int i = 0;
657	const char *p;
658
659	/* use the one-at-a-time hash function, which supposedly is
660	* better than the djb2-like one used by perl5.005, but
661	* certainly is better then the bug used here before.
662	* see http://burtleburtle.net/bob/hash/doobs.html
663	*/
664	for (p = str; i < MAXSTRING && *p; p++, i++)
665	{
666	hash += *p;
667	hash += hash << 10;
668	hash ^= hash >> 6;
669	}
670
671	hash += hash << 3;
672	hash ^= hash >> 11;
673	hash += hash << 15;
674
675	return hash % tablesize;
676	}
677
678	/*
679	* Finds, using the hashtable, which archetype matches the given name.
680	* returns a pointer to the found archetype, otherwise NULL.
681	*/
682
683	archetype *
684	archetype::find (const char *name)
685	{
686	if (!name)
687	return 0;
688
689	#if USE_UNORDERED_MAP
690	AUTODECL (i, ht.find ((size_t) name));
691
692	if (i == ht.end ())
693	return 0;
694	else
695	return i->second;
696	#endif
697
698	archetype *at;
699	unsigned long index;
700
701	index = hasharch (name, ARCHTABLE);
702	arch_search++;
703	for (;;)
704	{
705	at = arch_table[index];
706
707	if (at == NULL)
708	{
709	if (warn_archetypes)
710	LOG (llevError, "Couldn't find archetype %s\n", name);
711
712	return NULL;
713	}
714
715	arch_cmp++;
716
717	if (!strcmp ((const char *) at->name, name))
718	return at;
719
720	if (++index >= ARCHTABLE)
721	index = 0;
722	}
723	}
724
725	/*
726	* Adds an archetype to the hashtable.
727	*/
728	void
729	archetype::hash_add ()
730	{
731	#if USE_UNORDERED_MAP
732	ht.insert (std::make_pair ((size_t) (const char *) name, this));
733	#else
734
735	int index = hasharch ((const char *) name, ARCHTABLE), org_index = index;
736
737	for (;;)
738	{
739	if (!arch_table[index])
740	{
741	arch_table[index] = this;
742	break;
743	}
744
745	if (++index == ARCHTABLE)
746	index = 0;
747
748	if (index == org_index)
749	fatal (ARCHTABLE_TOO_SMALL);
750	}
751	#endif
752	}
753
754	void
755	archetype::hash_del ()
756	{
757	#if USE_UNORDERED_MAP
758	# error remove this from HT
759	#else
760
761	int index = hasharch ((const char *) name, ARCHTABLE), org_index = index;
762
763	for (;;)
764	{
765	if (arch_table[index] == this)
766	{
767	arch_table[index] = 0;
768	break;
769	}
770
771	if (++index == ARCHTABLE)
772	index = 0;
773
774	if (index == org_index)
775	break;
776	}
777	#endif
778	}	582	}
779		583
780	/*	584	/*
781	* Returns the first archetype using the given type.	585	* Returns the first archetype using the given type.
782	* Used in treasure-generation.	586	* Used in treasure-generation.
783	*/	587	*/
784
785	archetype *	588	archetype *
786	type_to_archetype (int type)	589	type_to_archetype (int type)
787	{	590	{
788	archetype *at;	591	for_all_archetypes (at)
789		592	if (at->type == type && at->head_ () != at)
790	for (at = first_archetype; at; at = at->more == 0 ? at->next : at->more)
791	if (at->clone.type == type)
792	return at;	593	return at;
793		594
794	return 0;	595	return 0;
795	}	596	}
796		597
797	/*	598	/*
798	* Returns a new object copied from the first archetype matching	599	* Returns a new object copied from the first archetype matching
799	* the given type.	600	* the given type.
800	* Used in treasure-generation.	601	* Used in treasure-generation.
801	*/	602	*/
802
803	object *	603	object *
804	clone_arch (int type)	604	clone_arch (int type)
805	{	605	{
806	archetype *at;	606	archetype *at = type_to_archetype (type);
807		607
808	if ((at = type_to_archetype (type)) == NULL)	608	if (!at)
809	{	609	{
810	LOG (llevError, "Can't clone archetype %d\n", type);	610	LOG (llevError, "Can't clone archetype %d\n", type);
811	return 0;	611	return 0;
812	}	612	}
813		613
814	object *op = at->clone.clone ();	614	return at->instance ();
815	op->instantiate ();
816	return op;
817	}	615	}
818		616
819	/*	617	/*
820	* member: make instance from class	618	* member: make instance from class
821	*/	619	*/
822
823	object *	620	object *
824	object_create_arch (archetype *at)	621	object_create_arch (archetype *at)
825	{	622	{
826	object op, prev = 0, *head = 0;	623	object op, prev = 0, *head = 0;
827		624
828	while (at)	625	while (at)
829	{	626	{
830	op = arch_to_object (at);	627	op = at->instance ();
		628
831	op->x = at->clone.x;	629	op->x = at->x;
832	op->y = at->clone.y;	630	op->y = at->y;
833		631
834	if (head)	632	if (head)
835	op->head = head, prev->more = op;	633	op->head = head, prev->more = op;
836		634
837	if (!head)	635	if (!head)
838	head = op;	636	head = op;
839		637
840	prev = op;	638	prev = op;
841	at = at->more;	639	at = (archetype *)at->more;
842	}	640	}
843		641
844	return (head);	642	return head;
845	}	643	}
846		644

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Comparing deliantra/server/common/arch.C (file contents): Revision 1.32 by root, Mon Dec 25 11:25:49 2006 UTC vs. Revision 1.81 by root, Sat May 17 00:17:02 2008 UTC

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Comparing deliantra/server/common/arch.C (file contents):
Revision 1.32 by root, Mon Dec 25 11:25:49 2006 UTC vs.
Revision 1.81 by root, Sat May 17 00:17:02 2008 UTC