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

Comparing deliantra/server/common/arch.C (file contents):
Revision 1.43 by root, Fri Feb 16 19:43:40 2007 UTC vs.
Revision 1.97 by root, Sun Nov 8 22:28:10 2009 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 (C) 2005, 2006, 2007 Marc Lehmann & Crossfire+ Development Team	4	* Copyright (©) 2005,2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
5	* Copyright (C) 2002 Mark Wedel & Crossfire Development Team	5	* Copyright (©) 2002,2007 Mark Wedel & Crossfire Development Team
6	* Copyright (C) 1992 Frank Tore Johansen	6	* Copyright (©) 1992,2007 Frank Tore Johansen
7	*	7	*
8	* This program is free software; you can redistribute it and/or modify	8	* Deliantra is free software: you can redistribute it and/or modify it under
9	* it under the terms of the GNU General Public License as published by	9	* the terms of the Affero GNU General Public License as published by the
10	* the Free Software Foundation; either version 2 of the License, or	10	* Free Software Foundation, either version 3 of the License, or (at your
11	* (at your option) any later version.	11	* option) any later version.
12	*	12	*
13	* 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,
14	* but WITHOUT ANY WARRANTY; without even the implied warranty of	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16	* GNU General Public License for more details.	16	* GNU General Public License for more details.
17	*	17	*
18	* You should have received a copy of the GNU General Public License	18	* You should have received a copy of the Affero GNU General Public License
19	* along with this program; if not, write to the Free Software	19	* and the GNU General Public License along with this program. If not, see
20	* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.	20	* <http://www.gnu.org/licenses/>.
21	*	21	*
22	* The authors can be reached via e-mail at <crossfire@schmorp.de>	22	* The authors can be reached via e-mail to <support@deliantra.net>
23	*/	23	*/
24		24
25	#include <cassert>	25	#include <cassert>
26		26
27	#include <global.h>	27	#include <global.h>
28	#include <funcpoint.h>
29	#include <loader.h>	28	#include <loader.h>
30		29
31	#include <tr1/functional>	30	#include <tr1/functional>
32	#include <tr1/unordered_map>	31	#include <tr1/unordered_map>
33		32
34	int arch_init; /* True if doing arch initialization */	33	archetype *loading_arch; // ugly flag to object loader etc. to suppress/request special processing
35		34	arch_ptr archetype::empty;
36	/* The naming of these functions is really poor - they are all
37	* pretty much named '.._arch_...', but they may more may not
38	* return archetypes. Some make the arch_to_object call, and thus
39	* return an object. Perhaps those should be called 'archob' functions
40	* to denote they return an object derived from the archetype.
41	* MSW 2003-04-29
42	*/
43		35
44	// the hashtable	36	// the hashtable
45	typedef std::tr1::unordered_map	37	typedef std::tr1::unordered_map
46	<	38	<
47	const char *,	39	const char *,
49	str_hash,	41	str_hash,
50	str_equal,	42	str_equal,
51	slice_allocator< std::pair<const char *const, arch_ptr> >	43	slice_allocator< std::pair<const char *const, arch_ptr> >
52	> HT;	44	> HT;
53		45
54	static HT ht (5000);	46	static HT ht (10000);
		47	archvec archetypes;
		48	static unordered_vector<archetype *> allarch;
		49	static int dirtycnt;
		50
		51	// the vector of other_arch references to be resolved
		52	static std::vector< std::pair<arch_ptr *, shstr> > postponed_arch_ref;
		53	// the vector of loaded but not yet committed archetypes
		54	static std::vector<archetype *> postponed_arch;
		55
		56	//+GPL
		57
		58	/*
		59	* Creates an object. This function is called by get_archetype ()
		60	* if it fails to find the appropriate archetype.
		61	* Thus get_archetype() will be guaranteed to always return
		62	* an object, and never NULL.
		63	*/
		64	static object *
		65	create_singularity (const char *name)
		66	{
		67	LOG (llevError \| logBacktrace, "FATAL: creating singularity for '%s'.\n", name);
		68
		69	if (!strcmp (name, "bug"))
		70	abort ();
		71
		72	object *op = archetype::get (shstr_bug);
		73	op->name = op->name_pl = format ("bug, please report (missing archetype %s)", name);
		74
		75	return op;
		76	}
55		77
56	/**	78	/**
57	* GROS - This function retrieves an archetype given the name that appears	79	* GROS - This function retrieves an archetype given the name that appears
58	* during the game (for example, "writing pen" instead of "stylus").	80	* during the game (for example, "writing pen" instead of "stylus").
59	* It does not use the hashtable system, but browse the whole archlist each time.	81	* It does not use the hashtable system, but browse the whole archlist each time.
…		…
67	archetype *	89	archetype *
68	find_archetype_by_object_name (const char *name)	90	find_archetype_by_object_name (const char *name)
69	{	91	{
70	shstr_cmp name_cmp (name);	92	shstr_cmp name_cmp (name);
71		93
72	for (archetype *at = first_archetype; at; at = at->next)	94	for_all_archetypes (at)
73	if (at->clone.name == name_cmp)	95	if (at->name == name_cmp)
74	return at;	96	return at;
75		97
76	return 0;	98	return 0;
77	}	99	}
78		100
…		…
84	archetype *	106	archetype *
85	find_archetype_by_object_type_name (int type, const char *name)	107	find_archetype_by_object_type_name (int type, const char *name)
86	{	108	{
87	shstr_cmp name_cmp (name);	109	shstr_cmp name_cmp (name);
88		110
89	for (archetype *at = first_archetype; at; at = at->next)	111	for_all_archetypes (at)
90	if (at->clone.name == name_cmp && at->clone.type == type)	112	if (at->name == name_cmp && at->type == type)
91	return at;	113	return at;
92		114
93	return 0;	115	return 0;
94	}	116	}
95		117
…		…
101	object *	123	object *
102	get_archetype_by_skill_name (const char *skill, int type)	124	get_archetype_by_skill_name (const char *skill, int type)
103	{	125	{
104	shstr_cmp skill_cmp (skill);	126	shstr_cmp skill_cmp (skill);
105		127
106	for (archetype *at = first_archetype; at; at = at->next)	128	for_all_archetypes (at)
107	if (at->clone.skill == skill_cmp && (type == -1 \|\| type == at->clone.type))	129	if (at->skill == skill_cmp && (type == -1 \|\| type == at->type))
108	return arch_to_object (at);	130	return at->instance ();
109		131
110	return 0;	132	return 0;
111	}	133	}
112		134
113	/* similiar to above - this returns the first archetype	135	/* similiar to above - this returns the first archetype
…		…
118	* (eg, skills)	140	* (eg, skills)
119	*/	141	*/
120	archetype *	142	archetype *
121	get_archetype_by_type_subtype (int type, int subtype)	143	get_archetype_by_type_subtype (int type, int subtype)
122	{	144	{
123	for (archetype *at = first_archetype; at; at = at->next)	145	for_all_archetypes (at)
124	if ((type == -1 \|\| type == at->clone.type) && (subtype == -1 \|\| subtype == at->clone.subtype))	146	if ((type == -1 \|\| type == at->type) && (subtype == -1 \|\| subtype == at->subtype))
125	return at;	147	return at;
126		148
127	return 0;	149	return 0;
128	}	150	}
129		151
…		…
134	* - name: The name we're searching for (ex: "writing pen");	156	* - name: The name we're searching for (ex: "writing pen");
135	* Return value:	157	* Return value:
136	* - a corresponding object if found; a singularity object if not found.	158	* - a corresponding object if found; a singularity object if not found.
137	* Note by MSW - it appears that it takes the full name and keeps	159	* Note by MSW - it appears that it takes the full name and keeps
138	* shortening it until it finds a match. I re-wrote this so that it	160	* shortening it until it finds a match. I re-wrote this so that it
139	* doesn't malloc it each time - not that this function is used much,	161	* doesn't allocate it each time - not that this function is used much,
140	* but it otherwise had a big memory leak.	162	* but it otherwise had a big memory leak.
141	*/	163	*/
142	object *	164	object *
143	get_archetype_by_object_name (const char *name)	165	get_archetype_by_object_name (const char *name)
144	{	166	{
145	char tmpname[MAX_BUF];	167	char tmpname[MAX_BUF];
146	int i;
147		168
148	assign (tmpname, name);	169	assign (tmpname, name);
149		170
150	for (i = strlen (tmpname); i > 0; i--)	171	for (int i = strlen (tmpname); i > 0; i--)
151	{	172	{
152	tmpname[i] = 0;	173	tmpname[i] = 0;
153		174
154	if (archetype *at = find_archetype_by_object_name (tmpname))	175	if (archetype *at = find_archetype_by_object_name (tmpname))
155	return arch_to_object (at);	176	return at->instance ();
156	}	177	}
157		178
158	return create_singularity (name);	179	return create_singularity (name);
159	}	180	}
160		181
161	/* This is a subset of the parse_id command. Basically, name can be	182	/* This is a subset of the parse_id command. Basically, name can be
162	* a string seperated lists of things to match, with certain keywords.	183	* a string seperated lists of things to match, with certain keywords.
163	* pl is the player (only needed to set count properly)	184	* pl is the player (only needed to set count properly)
164	* op is the item we are trying to match. Calling function takes care	185	* op is the item we are trying to match. Calling function takes care
165	* of what action might need to be done and if it is valid	186	* of what action might need to be done and if it is valid
166	* (pickup, drop, etc.) Return NONZERO if we have a match. A higher	187	* (pickup, drop, etc.) Return NONZERO if we have a match. A higher
167	* value means a better match. 0 means no match.	188	* value means a better match. 0 means no match.
168	*	189	*
169	* Brief outline of the procedure:	190	* Brief outline of the procedure:
170	* We take apart the name variable into the individual components.	191	* We take apart the name variable into the individual components.
171	* cases for 'all' and unpaid are pretty obvious.	192	* cases for 'all' and unpaid are pretty obvious.
172	* Next, we check for a count (either specified in name, or in the	193	* Next, we check for a count (either specified in name, or in the
173	* player object.)	194	* player object.)
174	* If count is 1, make a quick check on the name.	195	* If count is 1, make a quick check on the name.
175	* IF count is >1, we need to make plural name. Return if match.	196	* IF count is >1, we need to make plural name. Return if match.
176	* Last, make a check on the full name.	197	* Last, make a check on the full name.
177	*/	198	*/
178	int	199	int
179	item_matched_string (object pl, object op, const char *name)	200	item_matched_string (object pl, object op, const char *name)
180	{	201	{
181	char *cp, local_name[MAX_BUF];	202	char *cp, local_name[MAX_BUF];
182	int count, retval = 0;	203	int count, retval = 0;
…		…
194	return 1;	215	return 1;
195		216
196	/* unpaid is a little more specific */	217	/* unpaid is a little more specific */
197	if (!strcmp (cp, "unpaid") && QUERY_FLAG (op, FLAG_UNPAID))	218	if (!strcmp (cp, "unpaid") && QUERY_FLAG (op, FLAG_UNPAID))
198	return 2;	219	return 2;
		220
199	if (!strcmp (cp, "cursed") && QUERY_FLAG (op, FLAG_KNOWN_CURSED) && (QUERY_FLAG (op, FLAG_CURSED) \|\| QUERY_FLAG (op, FLAG_DAMNED)))	221	if (!strcmp (cp, "cursed") && QUERY_FLAG (op, FLAG_KNOWN_CURSED) && (QUERY_FLAG (op, FLAG_CURSED) \|\| QUERY_FLAG (op, FLAG_DAMNED)))
200	return 2;	222	return 2;
201		223
202	if (!strcmp (cp, "unlocked") && !QUERY_FLAG (op, FLAG_INV_LOCKED))	224	if (!strcmp (cp, "unlocked") && !QUERY_FLAG (op, FLAG_INV_LOCKED))
203	return 2;	225	return 2;
…		…
225	* is because of the 'else' handling - we don't want to match on	247	* is because of the 'else' handling - we don't want to match on
226	* something and set a low retval, even though it may match a higher retcal	248	* something and set a low retval, even though it may match a higher retcal
227	* later. So keep it in descending order here, so we try for the best	249	* later. So keep it in descending order here, so we try for the best
228	* match first, and work downward.	250	* match first, and work downward.
229	*/	251	*/
		252	const char qbn0, qbn1, *qsn; // query base name/short name caches
		253
230	if (!strcasecmp (cp, query_name (op)))	254	if (!strcasecmp (cp, query_name (op)))
231	retval = 20;	255	retval = 20;
232	else if (!strcasecmp (cp, query_short_name (op)))	256	else if (!strcasecmp (cp, qsn = query_short_name (op)))
233	retval = 18;	257	retval = 18;
234	else if (!strcasecmp (cp, query_base_name (op, 0)))	258	else if (!strcasecmp (cp, qbn0 = query_base_name (op, 0)))
235	retval = 16;	259	retval = 16;
236	else if (!strcasecmp (cp, query_base_name (op, 1)))	260	else if (!strcasecmp (cp, qbn1 = query_base_name (op, 1)))
237	retval = 16;	261	retval = 16;
238	else if (op->custom_name && !strcasecmp (cp, op->custom_name))	262	else if (op->custom_name && !strcasecmp (cp, op->custom_name))
239	retval = 15;	263	retval = 15;
240	else if (!strncasecmp (cp, query_base_name (op, 0), strlen (cp)))	264	else if (!strncasecmp (cp, qbn0, strlen (cp)))
241	retval = 14;	265	retval = 14;
242	else if (!strncasecmp (cp, query_base_name (op, 1), strlen (cp)))	266	else if (!strncasecmp (cp, qbn1, strlen (cp)))
243	retval = 14;	267	retval = 14;
244	/* Do substring checks, so things like 'Str+1' will match.	268	/* Do substring checks, so things like 'Str+1' will match.
245	* retval of these should perhaps be lower - they are lower	269	* retval of these should perhaps be lower - they are lower
246	* then the specific strcasecmp aboves, but still higher than	270	* then the specific strcasecmp aboves, but still higher than
247	* some other match criteria.	271	* some other match criteria.
248	*/	272	*/
249	else if (strstr (query_base_name (op, 1), cp))	273	else if (strstr (qbn1, cp))
250	retval = 12;	274	retval = 12;
251	else if (strstr (query_base_name (op, 0), cp))	275	else if (strstr (qbn0, cp))
252	retval = 12;	276	retval = 12;
253	else if (strstr (query_short_name (op), cp))	277	else if (strstr (qsn, cp))
254	retval = 12;	278	retval = 12;
255	/* Check against plural/non plural based on count. */	279	/* Check against plural/non plural based on count. */
256	else if (count > 1 && !strcasecmp (cp, op->name_pl))	280	else if (count > 1 && !strcasecmp (cp, op->name_pl))
257	retval = 6;	281	retval = 6;
258	else if (count == 1 && !strcasecmp (op->name, cp))	282	else if (count == 1 && !strcasecmp (op->name, cp))
259	retval = 6;	283	retval = 6;
260	/* base name matched - not bad */	284	/* base name matched - not bad */
261	else if (strcasecmp (cp, op->name) == 0 && !count)	285	else if (strcasecmp (cp, op->name) == 0 && !count)
262	retval = 4;	286	retval = 4;
263	/* Check for partial custom name, but give a real low priority */	287	/* Check for partial custom name, but give a real low priority */
264	else if (op->custom_name && strstr (op->custom_name, cp))	288	else if (op->custom_name.contains (cp))
265	retval = 3;	289	retval = 3;
266		290
267	if (retval)	291	if (retval)
268	{	292	{
269	if (pl->type == PLAYER)	293	if (pl->type == PLAYER)
…		…
274	}	298	}
275		299
276	return 0;	300	return 0;
277	}	301	}
278		302
279	/*	303	//-GPL
280	* Initialises the internal linked list of archetypes (read from file).	304
281	* Then the global "empty_archetype" pointer is initialised.	305	archetype::archetype (const char *name)
282	* Then the blocksview[] array is initialised.	306	{
283	*/	307	arch = this;
		308	this->archname = this->name = this->name_pl = name;
		309	}
		310
		311	archetype::~archetype ()
		312	{
		313	unlink ();
		314	}
284		315
285	void	316	void
286	init_archetypes (void)	317	archetype::link ()
287	{ /* called from add_player() and edit() */	318	{
288	if (first_archetype != NULL) /* Only do this once */	319	if (!archetypes.contains (this))
289	return;	320	{
290		321	archetypes.insert (this);
291	arch_init = 1;	322	ht.insert (std::make_pair (archname, this));
292	load_archetypes ();	323	}
293	arch_init = 0;
294	empty_archetype = archetype::find ("empty_archetype");
295
296	/* init_blocksview();*/
297	}	324	}
298		325
299	/*
300	* An alternative way to init the hashtable which is slower, but _works_...
301	*/
302	void	326	void
303	init_archetable (void)	327	archetype::unlink ()
304	{	328	{
305	LOG (llevDebug, " Setting up archetable...\n");	329	if (archetypes.contains (this))
306
307	for (archetype *at = first_archetype; at; at = at->next)
308	for (archetype *bt = at; bt; bt = bt->more)
309	bt->hash_add ();
310
311	LOG (llevDebug, "done\n");
312	}
313
314	void
315	free_all_archs (void)
316	{
317	archetype at, next;
318	int i = 0, f = 0;
319
320	for (at = first_archetype; at; at = next)
321	{
322	if (at->more)
323	next = at->more;
324	else
325	next = at->next;
326
327	delete
328	at;
329
330	i++;
331	}	330	{
332		331	archetypes.erase (this);
333	LOG (llevDebug, "Freed %d archetypes, %d faces\n", i, f);	332	ht.erase (archname);
334	}
335
336	archetype::archetype ()
337	{
338	clone.arch = this;
339
340	CLEAR_FLAG (&clone, FLAG_FREED); /* This shouldn't matter, since copy_to */
341	SET_FLAG (&clone, FLAG_REMOVED); /* doesn't copy these flags... */
342	}
343
344	archetype::~archetype ()
345	{
346	//TODO: nuke ->more's
347	}
348
349	archetype *
350	archetype::read (object_thawer &f)
351	{
352	assert (f.kw == KW_object);
353
354	archetype *head = new archetype;
355	f.get (head->name);
356
357	if (!head->clone.parse_kv (f))
358	{	333	}
359	delete head;
360	return 0;
361	}
362
363	for (archetype *prev = head; f.kw == KW_more; )
364	{
365	f.next ();
366
367	assert (f.kw == KW_object);
368
369	archetype *more = new archetype;
370	f.get (more->name);
371
372	if (!more->clone.parse_kv (f))
373	{
374	delete head;
375	return 0;
376	}
377
378	assert (("pippijn sagt es gibt keine tiles mehr", head->clone.face == more->clone.face));
379
380	if (more->clone.x > head->tail_x) head->tail_x = more->clone.x;
381	if (more->clone.y > head->tail_y) head->tail_y = more->clone.y;
382
383	more->head = head;
384	more->clone.head = &head->clone;
385	prev->more = more;
386	prev->clone.more = &more->clone;
387
388	prev = more;
389	}
390
391	head->next = first_archetype;
392	first_archetype = head;
393
394	return head;
395	}
396
397	/*
398	* Reads/parses the archetype-file, and copies into a linked list
399	* of archetype-structures.
400	*/
401	static bool
402	first_arch_pass (object_thawer &f)
403	{
404	for (;;)
405	{
406	switch (f.kw)
407	{
408	case KW_object:
409	if (!archetype::read (f))
410	return false;
411	continue;
412
413	case KW_EOF:
414	return true;
415
416	default:
417	if (!f.parse_error ("archetypes file"))
418	return false;
419	}
420
421	f.next ();
422	}
423	}
424
425	/*
426	* Reads the archetype file once more, and links all pointers between
427	* archetypes.
428	*/
429	void
430	second_arch_pass (object_thawer & thawer)
431	{
432	char buf[MAX_BUF], variable = buf, argument, *cp;
433	archetype at = NULL, other;
434
435	while (fgets (buf, MAX_BUF, thawer) != NULL)
436	{
437	if (*buf == '#')
438	continue;
439
440	if ((argument = strchr (buf, ' ')) != NULL)
441	{
442	*argument = '\0', argument++;
443	cp = argument + strlen (argument) - 1;
444	while (isspace (*cp))
445	{
446	*cp = '\0';
447	cp--;
448	}
449	}
450
451	if (!strcmp ("object", variable))
452	{
453	if ((at = archetype::find (argument)) == NULL)
454	LOG (llevError, "Warning: failed to find arch %s\n", argument);
455	}
456	else if (!strcmp ("other_arch", variable))
457	{
458	if (at != NULL && at->clone.other_arch == NULL)
459	{
460	if ((other = archetype::find (argument)) == NULL)
461	LOG (llevError, "Warning: failed to find other_arch %s\n", argument);
462	else if (at != NULL)
463	at->clone.other_arch = other;
464	}
465	}
466	else if (!strcmp ("randomitems", variable))
467	{
468	if (at)
469	{
470	treasurelist *tl = find_treasurelist (argument);
471
472	if (tl == NULL)
473	LOG (llevError, "Failed to link treasure to arch (%s): %s\n", &at->name, argument);
474	else
475	at->clone.randomitems = tl;
476	}
477	}
478	}
479	}
480
481	#ifdef DEBUG
482	void
483	check_generators (void)
484	{
485	archetype *at;
486
487	for (at = first_archetype; at != NULL; at = at->next)
488	if (QUERY_FLAG (&at->clone, FLAG_GENERATOR) && at->clone.other_arch == NULL)
489	LOG (llevError, "Warning: %s is generator but lacks other_arch.\n", &at->name);
490	}
491	#endif
492
493	/*
494	* First initialises the archtype hash-table (init_archetable()).
495	* Reads and parses the archetype file (with the first and second-pass
496	* functions).
497	* Then initialises treasures by calling load_treasures().
498	*/
499
500	void
501	load_archetypes (void)
502	{
503	char filename[MAX_BUF];
504
505	sprintf (filename, "%s/%s", settings.datadir, settings.archetypes);
506	LOG (llevDebug, "Reading archetypes from %s:\n", filename);
507
508	{
509	object_thawer f (filename);
510
511	f.next ();
512
513	LOG (llevDebug, " arch-pass 1...\n");
514	if (!first_arch_pass (f))
515	cleanup ("errors during first arch pass are fatal");
516	LOG (llevDebug, " done\n");
517	}
518
519	init_archetable ();
520	warn_archetypes = 1;
521
522	{
523	object_thawer f (filename);
524
525	LOG (llevDebug, " loading treasure...\n");
526	load_treasures ();
527	LOG (llevDebug, " done\n");
528	LOG (llevDebug, " arch-pass 2...\n");
529	second_arch_pass (f);
530	LOG (llevDebug, " done\n");
531	#ifdef DEBUG
532	check_generators ();
533	#endif
534	}
535	LOG (llevDebug, " done\n");
536	}
537
538	/*
539	* Creates and returns a new object which is a copy of the given archetype.
540	* This function returns NULL on failure.
541	*/
542	object *
543	arch_to_object (archetype *at)
544	{
545	if (!at)
546	{
547	if (warn_archetypes)
548	LOG (llevError, "Couldn't find archetype.\n");
549
550	return NULL;
551	}
552
553	object *op = at->clone.clone ();
554	op->arch = at;
555	op->instantiate ();
556	return op;
557	}
558
559	/*
560	* Creates an object. This function is called by get_archetype()
561	* if it fails to find the appropriate archetype.
562	* Thus get_archetype() will be guaranteed to always return
563	* an object, and never NULL.
564	*/
565	object *
566	create_singularity (const char *name)
567	{
568	object *op;
569	char buf[MAX_BUF];
570
571	sprintf (buf, "%s (%s)", ARCH_SINGULARITY, name);
572	op = object::create ();
573	op->name = op->name_pl = buf;
574	SET_FLAG (op, FLAG_NO_PICK);
575	return op;
576	}
577
578	/*
579	* Finds which archetype matches the given name, and returns a new
580	* object containing a copy of the archetype.
581	*/
582	object *
583	get_archetype (const char *name)
584	{
585	archetype *at = archetype::find (name);
586
587	if (!at)
588	return create_singularity (name);
589
590	return arch_to_object (at);
591	}
592
593	/*
594	* Hash-function used by the arch-hashtable.
595	*/
596
597	unsigned long
598	hasharch (const char *str, int tablesize)
599	{
600	unsigned long hash = 0;
601	unsigned int i = 0;
602	const char *p;
603
604	/* use the one-at-a-time hash function, which supposedly is
605	* better than the djb2-like one used by perl5.005, but
606	* certainly is better then the bug used here before.
607	* see http://burtleburtle.net/bob/hash/doobs.html
608	*/
609	for (p = str; i < MAXSTRING && *p; p++, i++)
610	{
611	hash += *p;
612	hash += hash << 10;
613	hash ^= hash >> 6;
614	}
615
616	hash += hash << 3;
617	hash ^= hash >> 11;
618	hash += hash << 15;
619
620	return hash % tablesize;
621	}	334	}
622		335
623	/*	336	/*
624	* Finds, using the hashtable, which archetype matches the given name.	337	* Finds, using the hashtable, which archetype matches the given name.
625	* returns a pointer to the found archetype, otherwise NULL.	338	* returns a pointer to the found archetype, otherwise NULL.
…		…
628	archetype::find (const char *name)	341	archetype::find (const char *name)
629	{	342	{
630	if (!name)	343	if (!name)
631	return 0;	344	return 0;
632		345
633	AUTODECL (i, ht.find (name));	346	auto (i, ht.find (name));
634		347
635	if (i == ht.end ())	348	if (i == ht.end ())
636	return 0;	349	return 0;
637	else	350	else
638	return i->second;	351	return i->second;
639	}	352	}
640		353
		354	void
		355	archetype::post_load_check ()
		356	{
		357	object::post_load_check ();
		358
		359	assert (("obj_original MUST NOT be set for archetypes", !flag [FLAG_OBJ_ORIGINAL]));
		360	}
		361
		362	archetype *
		363	archetype::read (object_thawer &f)
		364	{
		365	assert (f.kw == KW_object);
		366
		367	std::vector<archetype *> parts;
		368
		369	coroapi::cede_to_tick ();
		370
		371	for (;;)
		372	{
		373	archetype *at = new archetype (f.get_str ());
		374
		375	f.next ();
		376
		377	#if 0
		378	// implementing it here in the server does neither allow multiple inheritence
		379	// nor does it cleanly "just override". it would allow use in map files, though,
		380	// and other resource files dynamically laoded (as opposed to being preprocessed).
		381	// not that any of this is relevant as of yet...
		382	if (f.kw == KW_inherit)
		383	{
		384	if (archetype *at = find (f.get_str ()))
		385	*op = at->clone;
		386	else
		387	LOG (llevError, "archetype '%s' tries to inherit from non-existent archetype '%s'.\n",
		388	&at->archname, f.get_str ());
		389
		390	f.next ();
		391	}
		392	#endif
		393
		394	loading_arch = at; // hack to tell parse_kv et al. to behave
		395	bool parse_ok = at->parse_kv (f);
		396	loading_arch = 0;
		397
		398	if (!parse_ok)
		399	goto fail;
		400
		401	loading_arch = at; // hack to tell parse_kv et al. to behave
		402	at->post_load_check ();
		403	loading_arch = 0;
		404
		405	parts.push_back (at);
		406
		407	if (f.kw != KW_more)
		408	break;
		409
		410	f.next ();
		411
		412	if (f.kw != KW_object)
		413	{
		414	f.parse_error ("more object");
		415	goto fail;
		416	}
		417	}
		418
		419	{
		420	auto (at, parts.begin ());
		421
		422	archetype *new_head = parts.front ();
		423	archetype *old_head = find (new_head->archname);
		424
		425	if (old_head && !old_head->is_head ())
		426	{
		427	LOG (llevError, "%s: unable to overwrite non-head archetype '%s' with head archetype, skipping.\n",
		428	&new_head->archname, &old_head->archname);
		429	goto fail;
		430	}
		431
		432	// check that all archetypes belong to the same old object or are new
		433	for (auto (at, parts.begin ()); at != parts.end (); ++at)
		434	{
		435	archetype new_part = at;
		436	archetype *old_part = find (new_part->archname);
		437
		438	if (old_part && old_part->head_ () != old_head)
		439	{
		440	LOG (llevError, "%s: unable to overwrite archetype '%s' with archetype of different object, skipping.\n",
		441	&new_part->archname, &((archetype *)old_part->head_ ())->archname);
		442	goto fail;
		443	}
		444	}
		445
		446	// assemble new chain
		447	new_head->min_x = new_head->max_x = new_head->x;
		448	new_head->min_y = new_head->max_y = new_head->y;
		449
		450	archetype *less = new_head;
		451	for (auto (p, parts.begin () + 1); p != parts.end (); ++p)
		452	{
		453	archetype at = p;
		454
		455	// some flags get inherited from the head (probably a lot more)
		456	// doing it here doesn't feel too cozy, but it allows code
		457	// to ignore head checks for these flags, which saves time
		458	at->flag [FLAG_ALIVE] = new_head->flag [FLAG_ALIVE];
		459	at->flag [FLAG_NO_PICK] = new_head->flag [FLAG_NO_PICK];
		460	at->flag [FLAG_MONSTER] = new_head->flag [FLAG_MONSTER];
		461	at->flag [FLAG_IS_FLOOR] = new_head->flag [FLAG_IS_FLOOR];
		462
		463	new_head->min_x = min (new_head->min_x, at->x);
		464	new_head->min_y = min (new_head->min_y, at->y);
		465	new_head->max_x = max (new_head->max_x, at->x);
		466	new_head->max_y = max (new_head->max_y, at->y);
		467
		468	at->head = new_head;
		469	less->more = at;
		470	less = at;
		471	}
		472
		473	postponed_arch.insert (postponed_arch.end (), parts.begin (), parts.end ());
		474
		475	return new_head;
		476	}
		477
		478	fail:
		479	for (auto (p, parts.begin ()); p != parts.end (); ++p)
		480	(*p)->destroy ();
		481
		482	return 0;
		483	}
		484
		485	void
		486	archetype::postpone_arch_ref (arch_ptr &ref, const_utf8_string other_arch)
		487	{
		488	ref = 0;
		489	postponed_arch_ref.push_back (std::pair<arch_ptr *, shstr>(&ref, shstr (other_arch)));
		490	}
		491
		492	void
		493	archetype::commit_load ()
		494	{
		495	// unlink old archetypes and link in new ones */
		496	for (auto (p, postponed_arch.begin ()); p != postponed_arch.end (); ++p)
		497	{
		498	archetype at = p;
		499
		500	if (archetype *old = find (at->archname))
		501	old->unlink ();
		502
		503	allarch.push_back (at);
		504
		505	at->link ();
		506	++dirtycnt;
		507	}
		508
		509	postponed_arch.clear ();
		510
		511	// now resolve arch references
		512	for (auto (p, postponed_arch_ref.begin ()); p != postponed_arch_ref.end (); ++p)
		513	{
		514	arch_ptr *ap = p->first;
		515	archetype *at = find (p->second);
		516
		517	if (!at)
		518	LOG (llevError, "unable to resolve postponed arch reference to '%s'", &p->second);
		519
		520	*ap = at;
		521	}
		522
		523	postponed_arch_ref.clear ();
		524
		525	empty = find (shstr_empty_archetype);
		526	}
		527
		528	void
		529	archetype::gc ()
		530	{
		531	int cnt = max (1, min (allarch.size () / 128, dirtycnt));
		532	dirtycnt = max (0, dirtycnt - cnt);
		533
		534	do
		535	{
		536	static int idx;
		537
		538	if (idx >= allarch.size ())
		539	if (idx)
		540	idx = 0;
		541	else
		542	return;
		543
		544	archetype *at = allarch [idx];
		545
		546	if (at->refcnt_cnt () > 1) // all arches have ONE refcount from their object
		547	++idx;
		548	else
		549	{
		550	LOG (llevDebug, "garbage collect arch %s", &at->archname);
		551	assert (at->arch == at); // verify that refcnt == 1 is truly valid
		552	allarch.erase (idx);
		553
		554	// break chain
		555	for (object *op = at->head_ (); op; )
		556	{
		557	object *next = op->more;
		558	op->head = 0;
		559	op->more = 0;
		560	op = next;
		561	}
		562
		563	at->destroy ();
		564	at->arch = 0;
		565	}
		566	}
		567	while (--cnt);
		568	}
		569
		570	object *
		571	archetype::instance ()
		572	{
		573	object *op = clone ();
		574	op->instantiate ();
		575	return op;
		576	}
		577
		578	//+GPL
		579
641	/*	580	/*
642	* Adds an archetype to the hashtable.	581	* Finds which archetype matches the given name, and returns a new
		582	* object containing a copy of the archetype.
643	*/	583	*/
644	void	584	object *
645	archetype::hash_add ()	585	get_archetype (const char *name)
646	{	586	{
647	ht.insert (std::make_pair (name, this));	587	return archetype::get (name);
648	}	588	}
649		589
650	void	590	object *
651	archetype::hash_del ()	591	archetype::get (const char *name)
652	{	592	{
653	ht.erase (name);	593	archetype *at = find (name);
		594
		595	if (!at)
		596	return create_singularity (name);
		597
		598	return at->instance ();
654	}	599	}
655		600
656	/*	601	/*
657	* Returns the first archetype using the given type.	602	* Returns the first archetype using the given type.
658	* Used in treasure-generation.	603	* Used in treasure-generation.
659	*/	604	*/
660	archetype *	605	static archetype *
661	type_to_archetype (int type)	606	type_to_archetype (int type)
662	{	607	{
663	archetype *at;	608	for_all_archetypes (at)
664		609	if (at->type == type && at->head_ () != at)
665	for (at = first_archetype; at; at = at->more == 0 ? at->next : at->more)
666	if (at->clone.type == type)
667	return at;	610	return at;
668		611
669	return 0;	612	return 0;
670	}	613	}
671		614
672	/*	615	/*
673	* Returns a new object copied from the first archetype matching	616	* Returns a new object copied from the first archetype matching
674	* the given type.	617	* the given type.
675	* Used in treasure-generation.	618	* Used in treasure-generation.
676	*/	619	*/
677
678	object *	620	object *
679	clone_arch (int type)	621	clone_arch (int type)
680	{	622	{
681	archetype *at;	623	archetype *at = type_to_archetype (type);
682		624
683	if ((at = type_to_archetype (type)) == NULL)	625	if (!at)
684	{	626	{
685	LOG (llevError, "Can't clone archetype %d\n", type);	627	LOG (llevError, "Can't clone archetype %d\n", type);
686	return 0;	628	return 0;
687	}	629	}
688		630
689	object *op = at->clone.clone ();	631	return at->instance ();
690	op->instantiate ();
691	return op;
692	}	632	}
693		633
694	/*	634	/*
695	* member: make instance from class	635	* member: make instance from class
696	*/	636	*/
697
698	object *	637	object *
699	object_create_arch (archetype *at)	638	object_create_arch (archetype *at)
700	{	639	{
701	object op, prev = 0, *head = 0;	640	object op, prev = 0, *head = 0;
702		641
703	while (at)	642	while (at)
704	{	643	{
705	op = arch_to_object (at);	644	op = at->instance ();
		645
706	op->x = at->clone.x;	646	op->x = at->x;
707	op->y = at->clone.y;	647	op->y = at->y;
708		648
709	if (head)	649	if (head)
710	op->head = head, prev->more = op;	650	op->head = head, prev->more = op;
711		651
712	if (!head)	652	if (!head)
713	head = op;	653	head = op;
714		654
715	prev = op;	655	prev = op;
716	at = at->more;	656	at = (archetype *)at->more;
717	}	657	}
718		658
719	return (head);	659	return head;
720	}	660	}
721		661
		662	//-GPL
		663

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Comparing deliantra/server/common/arch.C (file contents): Revision 1.43 by root, Fri Feb 16 19:43:40 2007 UTC vs. Revision 1.97 by root, Sun Nov 8 22:28:10 2009 UTC

Diff Legend

Comparing deliantra/server/common/arch.C (file contents):
Revision 1.43 by root, Fri Feb 16 19:43:40 2007 UTC vs.
Revision 1.97 by root, Sun Nov 8 22:28:10 2009 UTC