[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 1.79 by root, Sun May 4 11:12:40 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 (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
9	* 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
10	* the Free Software Foundation; either version 2 of the License, or	10	* the Free Software Foundation, either version 3 of the License, or
11	* (at your option) any later version.	11	* (at your 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 GNU General Public License
19	* along with this program; if not, write to the Free Software	19	* along with this program. If not, see <http://www.gnu.org/licenses/>.
20	* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21	*	20	*
22	* The authors can be reached via e-mail at <crossfire@schmorp.de>	21	* The authors can be reached via e-mail to <support@deliantra.net>
23	*/	22	*/
24		23
25	#include <cassert>	24	#include <cassert>
26		25
27	#include <global.h>	26	#include <global.h>
28	#include <funcpoint.h>
29	#include <loader.h>	27	#include <loader.h>
30		28
31	#include <tr1/functional>	29	#include <tr1/functional>
32	#include <tr1/unordered_map>	30	#include <tr1/unordered_map>
33		31
34	int arch_init; /* True if doing arch initialization */	32	archetype *loading_arch; // ugly flag to object loader etc. to suppress/request special processing
35		33	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		34
44	// the hashtable	35	// the hashtable
45	typedef std::tr1::unordered_map	36	typedef std::tr1::unordered_map
46	<	37	<
47	const char *,	38	const char *,
49	str_hash,	40	str_hash,
50	str_equal,	41	str_equal,
51	slice_allocator< std::pair<const char *const, arch_ptr> >	42	slice_allocator< std::pair<const char *const, arch_ptr> >
52	> HT;	43	> HT;
53		44
54	static HT ht (5000);	45	static HT ht (10000);
		46	archvec archetypes;
		47	static unordered_vector<archetype *> allarch;
		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;
55		54
56	/**	55	/**
57	* GROS - This function retrieves an archetype given the name that appears	56	* GROS - This function retrieves an archetype given the name that appears
58	* during the game (for example, "writing pen" instead of "stylus").	57	* 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.	58	* It does not use the hashtable system, but browse the whole archlist each time.
…		…
67	archetype *	66	archetype *
68	find_archetype_by_object_name (const char *name)	67	find_archetype_by_object_name (const char *name)
69	{	68	{
70	shstr_cmp name_cmp (name);	69	shstr_cmp name_cmp (name);
71		70
72	for (archetype *at = first_archetype; at; at = at->next)	71	for_all_archetypes (at)
73	if (at->clone.name == name_cmp)	72	if (at->name == name_cmp)
74	return at;	73	return at;
75		74
76	return 0;	75	return 0;
77	}	76	}
78		77
…		…
84	archetype *	83	archetype *
85	find_archetype_by_object_type_name (int type, const char *name)	84	find_archetype_by_object_type_name (int type, const char *name)
86	{	85	{
87	shstr_cmp name_cmp (name);	86	shstr_cmp name_cmp (name);
88		87
89	for (archetype *at = first_archetype; at; at = at->next)	88	for_all_archetypes (at)
90	if (at->clone.name == name_cmp && at->clone.type == type)	89	if (at->name == name_cmp && at->type == type)
91	return at;	90	return at;
92		91
93	return 0;	92	return 0;
94	}	93	}
95		94
…		…
101	object *	100	object *
102	get_archetype_by_skill_name (const char *skill, int type)	101	get_archetype_by_skill_name (const char *skill, int type)
103	{	102	{
104	shstr_cmp skill_cmp (skill);	103	shstr_cmp skill_cmp (skill);
105		104
106	for (archetype *at = first_archetype; at; at = at->next)	105	for_all_archetypes (at)
107	if (at->clone.skill == skill_cmp && (type == -1 \|\| type == at->clone.type))	106	if (at->skill == skill_cmp && (type == -1 \|\| type == at->type))
108	return arch_to_object (at);	107	return arch_to_object (at);
109		108
110	return 0;	109	return 0;
111	}	110	}
112		111
…		…
118	* (eg, skills)	117	* (eg, skills)
119	*/	118	*/
120	archetype *	119	archetype *
121	get_archetype_by_type_subtype (int type, int subtype)	120	get_archetype_by_type_subtype (int type, int subtype)
122	{	121	{
123	for (archetype *at = first_archetype; at; at = at->next)	122	for_all_archetypes (at)
124	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))
125	return at;	124	return at;
126		125
127	return 0;	126	return 0;
128	}	127	}
129		128
…		…
134	* - name: The name we're searching for (ex: "writing pen");	133	* - name: The name we're searching for (ex: "writing pen");
135	* Return value:	134	* Return value:
136	* - a corresponding object if found; a singularity object if not found.	135	* - 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	136	* 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	137	* 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,	138	* doesn't allocate it each time - not that this function is used much,
140	* but it otherwise had a big memory leak.	139	* but it otherwise had a big memory leak.
141	*/	140	*/
142	object *	141	object *
143	get_archetype_by_object_name (const char *name)	142	get_archetype_by_object_name (const char *name)
144	{	143	{
…		…
156	}	155	}
157		156
158	return create_singularity (name);	157	return create_singularity (name);
159	}	158	}
160		159
161	/* 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
162	* a string seperated lists of things to match, with certain keywords.	161	* a string seperated lists of things to match, with certain keywords.
163	* pl is the player (only needed to set count properly)	162	* pl is the player (only needed to set count properly)
164	* 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
165	* 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
166	* (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
167	* value means a better match. 0 means no match.	166	* value means a better match. 0 means no match.
168	*	167	*
169	* Brief outline of the procedure:	168	* Brief outline of the procedure:
170	* We take apart the name variable into the individual components.	169	* We take apart the name variable into the individual components.
171	* cases for 'all' and unpaid are pretty obvious.	170	* cases for 'all' and unpaid are pretty obvious.
172	* 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
173	* player object.)	172	* player object.)
174	* If count is 1, make a quick check on the name.	173	* 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.	174	* IF count is >1, we need to make plural name. Return if match.
176	* Last, make a check on the full name.	175	* Last, make a check on the full name.
177	*/	176	*/
178	int	177	int
179	item_matched_string (object pl, object op, const char *name)	178	item_matched_string (object pl, object op, const char *name)
180	{	179	{
181	char *cp, local_name[MAX_BUF];	180	char *cp, local_name[MAX_BUF];
182	int count, retval = 0;	181	int count, retval = 0;
…		…
274	}	273	}
275		274
276	return 0;	275	return 0;
277	}	276	}
278		277
279	/*	278	archetype::archetype (const char *name)
280	* Initialises the internal linked list of archetypes (read from file).	279	{
281	* Then the global "empty_archetype" pointer is initialised.	280	arch = this;
282	* Then the blocksview[] array is initialised.	281	this->archname = this->name = this->name_pl = name;
283	*/	282	}
		283
		284	archetype::~archetype ()
		285	{
		286	unlink ();
		287	}
284		288
285	void	289	void
286	init_archetypes (void)	290	archetype::link ()
287	{ /* called from add_player() and edit() */	291	{
288	if (first_archetype != NULL) /* Only do this once */	292	if (!archetypes.contains (this))
289	return;	293	{
290		294	archetypes.insert (this);
291	arch_init = 1;	295	ht.insert (std::make_pair (archname, this));
292	load_archetypes ();	296	}
293	arch_init = 0;
294	empty_archetype = archetype::find ("empty_archetype");
295
296	/* init_blocksview();*/
297	}	297	}
298		298
299	/*
300	* An alternative way to init the hashtable which is slower, but _works_...
301	*/
302	void	299	void
303	init_archetable (void)	300	archetype::unlink ()
304	{	301	{
305	LOG (llevDebug, " Setting up archetable...\n");	302	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	}	303	{
332		304	archetypes.erase (this);
333	LOG (llevDebug, "Freed %d archetypes, %d faces\n", i, f);	305	ht.erase (archname);
		306	}
334	}	307	}
335		308
336	archetype::archetype ()	309	/*
		310	* Finds, using the hashtable, which archetype matches the given name.
		311	* returns a pointer to the found archetype, otherwise NULL.
		312	*/
		313	archetype *
		314	archetype::find (const char *name)
337	{	315	{
338	clone.arch = this;	316	if (!name)
		317	return 0;
339		318
340	CLEAR_FLAG (&clone, FLAG_FREED); /* This shouldn't matter, since copy_to */	319	auto (i, ht.find (name));
341	SET_FLAG (&clone, FLAG_REMOVED); /* doesn't copy these flags... */
342	}
343		320
344	archetype::~archetype ()	321	if (i == ht.end ())
345	{	322	return 0;
346	//TODO: nuke ->more's	323	else
		324	return i->second;
347	}	325	}
348		326
349	archetype *	327	archetype *
350	archetype::read (object_thawer &f)	328	archetype::read (object_thawer &f)
351	{	329	{
352	assert (f.kw == KW_object);	330	assert (f.kw == KW_object);
353		331
354	archetype *head = new archetype;	332	std::vector<archetype *> parts;
355	f.get (head->name);
356		333
357	if (!head->clone.parse_kv (f))	334	coroapi::cede_to_tick ();
358	{	335
359	delete head;	336	for (;;)
360	return 0;
361	}	337	{
		338	archetype *at = new archetype (f.get_str ());
362		339
363	for (archetype *prev = head; f.kw == KW_more; )
364	{
365	f.next ();	340	f.next ();
366		341
367	assert (f.kw == KW_object);	342	#if 0
368		343	// implementing it here in the server does neither allow multiple inheritence
369	archetype *more = new archetype;	344	// nor does it cleanly "just override". it would allow use in map files, though,
370	f.get (more->name);	345	// and other resource files dynamically laoded (as opposed to being preprocessed).
371		346	// not that any of this is relevant as of yet...
372	if (!more->clone.parse_kv (f))	347	if (f.kw == KW_inherit)
373	{	348	{
374	delete head;	349	if (archetype *at = find (f.get_str ()))
375	return 0;	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 ();
376	}	356	}
		357	#endif
377		358
378	assert (("pippijn sagt es gibt keine tiles mehr", head->clone.face == more->clone.face));	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;
379		362
380	if (more->clone.x > head->tail_x) head->tail_x = more->clone.x;	363	if (!parse_ok)
381	if (more->clone.y > head->tail_y) head->tail_y = more->clone.y;	364	goto fail;
382		365
383	more->head = head;	366	loading_arch = at; // hack to tell parse_kv et al. to behave
384	more->clone.head = &head->clone;	367	at->post_load_check ();
385	prev->more = more;	368	loading_arch = 0;
386	prev->clone.more = &more->clone;
387		369
388	prev = more;	370	parts.push_back (at);
389	}
390		371
391	head->next = first_archetype;	372	if (f.kw != KW_more)
392	first_archetype = head;	373	break;
393		374
394	return head;	375	f.next ();
395	}
396		376
397	/*	377	if (f.kw != KW_object)
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	{	378	{
408	case KW_object:	379	f.parse_error ("more object");
409	if (!archetype::read (f))	380	goto fail;
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	}	381	}
		382	}
420		383
421	f.next ();	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;
422	}	395	}
423	}
424		396
425	/*	397	// check that all archetypes belong to the same old object or are new
426	* Reads the archetype file once more, and links all pointers between	398	for (auto (at, parts.begin ()); at != parts.end (); ++at)
427	* archetypes.	399	{
428	*/	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	}
		449
429	void	450	void
430	second_arch_pass (object_thawer & thawer)	451	archetype::postpone_arch_ref (arch_ptr &ref, const_utf8_string other_arch)
431	{	452	{
432	char buf[MAX_BUF], variable = buf, argument, *cp;	453	ref = 0;
433	archetype at = NULL, other;	454	postponed_arch_ref.push_back (std::pair<arch_ptr *, shstr>(&ref, shstr (other_arch)));
		455	}
434		456
435	while (fgets (buf, MAX_BUF, thawer) != NULL)	457	void
		458	archetype::commit_load ()
		459	{
		460	// unlink old archetypes and link in new ones */
		461	for (auto (p, postponed_arch.begin ()); p != postponed_arch.end (); ++p)
		462	{
		463	archetype at = p;
		464
		465	if (archetype *old = find (at->archname))
		466	old->unlink ();
		467
		468	allarch.push_back (at);
		469
		470	at->link ();
		471	++dirtycnt;
436	{	472	}
437	if (*buf == '#')
438	continue;
439		473
440	if ((argument = strchr (buf, ' ')) != NULL)	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	}
		492
		493	void
		494	archetype::gc ()
		495	{
		496	int cnt = max (1, min (allarch.size () / 128, dirtycnt));
		497	dirtycnt = max (0, dirtycnt - cnt);
		498
		499	do
		500	{
		501	static int idx;
		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;
		513	else
441	{	514	{
442	*argument = '\0', argument++;	515	LOG (llevDebug, "garbage collect arch %s", at->debug_desc ());
443	cp = argument + strlen (argument) - 1;	516	assert (at->arch == at); // verify that refcnt == 1 is truly valid
444	while (isspace (*cp))	517	allarch.erase (idx);
		518
		519	// break chain
		520	for (object *op = at->head_ (); op; )
445	{	521	{
		522	object *next = op->more;
		523	op->head = 0;
		524	op->more = 0;
446	*cp = '\0';	525	op = next;
447	cp--;
448	}	526	}
		527
		528	at->destroy ();
		529	at->arch = 0;
449	}	530	}
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	}	531	}
518		532	while (--cnt);
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	}	533	}
537		534
538	/*	535	/*
539	* Creates and returns a new object which is a copy of the given archetype.	536	* Creates and returns a new object which is a copy of the given archetype.
540	* This function returns NULL on failure.	537	* This function returns NULL on failure.
…		…
542	object *	539	object *
543	arch_to_object (archetype *at)	540	arch_to_object (archetype *at)
544	{	541	{
545	if (!at)	542	if (!at)
546	{	543	{
547	if (warn_archetypes)
548	LOG (llevError, "Couldn't find archetype.\n");	544	LOG (llevError, "Couldn't find archetype.\n");
549
550	return NULL;	545	return 0;
551	}	546	}
552		547
553	object *op = at->clone.clone ();	548	object *op = at->clone ();
554	op->arch = at;	549	op->arch = at;
555	op->instantiate ();	550	op->instantiate ();
		551
556	return op;	552	return op;
		553	}
		554
		555	object *
		556	archetype::instance ()
		557	{
		558	return arch_to_object (this);
557	}	559	}
558		560
559	/*	561	/*
560	* Creates an object. This function is called by get_archetype()	562	* Creates an object. This function is called by get_archetype()
561	* if it fails to find the appropriate archetype.	563	* if it fails to find the appropriate archetype.
…		…
563	* an object, and never NULL.	565	* an object, and never NULL.
564	*/	566	*/
565	object *	567	object *
566	create_singularity (const char *name)	568	create_singularity (const char *name)
567	{	569	{
568	object *op;	570	LOG (llevError \| logBacktrace, "FATAL: creating singularity for '%s'.\n", name);
		571
		572	if (!strcmp (name, "bug"))
		573	abort ();
		574
569	char buf[MAX_BUF];	575	char buf[MAX_BUF];
		576	sprintf (buf, "bug, please report (%s)", name);
570		577
571	sprintf (buf, "%s (%s)", ARCH_SINGULARITY, name);	578	object *op = get_archetype ("bug");
572	op = object::create ();
573	op->name = op->name_pl = buf;	579	op->name = op->name_pl = buf;
574	SET_FLAG (op, FLAG_NO_PICK);	580
575	return op;	581	return op;
576	}	582	}
577		583
578	/*	584	/*
579	* Finds which archetype matches the given name, and returns a new	585	* Finds which archetype matches the given name, and returns a new
…		…
588	return create_singularity (name);	594	return create_singularity (name);
589		595
590	return arch_to_object (at);	596	return arch_to_object (at);
591	}	597	}
592		598
593	/*	599	object *
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	}
622
623	/*
624	* Finds, using the hashtable, which archetype matches the given name.
625	* returns a pointer to the found archetype, otherwise NULL.
626	*/
627	archetype *
628	archetype::find (const char *name)	600	archetype::get (const char *name)
629	{	601	{
630	if (!name)	602	return get_archetype (name);
631	return 0;
632
633	AUTODECL (i, ht.find (name));
634
635	if (i == ht.end ())
636	return 0;
637	else
638	return i->second;
639	}
640
641	/*
642	* Adds an archetype to the hashtable.
643	*/
644	void
645	archetype::hash_add ()
646	{
647	ht.insert (std::make_pair (name, this));
648	}
649
650	void
651	archetype::hash_del ()
652	{
653	ht.erase (name);
654	}	603	}
655		604
656	/*	605	/*
657	* Returns the first archetype using the given type.	606	* Returns the first archetype using the given type.
658	* Used in treasure-generation.	607	* Used in treasure-generation.
659	*/	608	*/
660	archetype *	609	archetype *
661	type_to_archetype (int type)	610	type_to_archetype (int type)
662	{	611	{
663	archetype *at;	612	for_all_archetypes (at)
664		613	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;	614	return at;
668		615
669	return 0;	616	return 0;
670	}	617	}
671		618
672	/*	619	/*
673	* Returns a new object copied from the first archetype matching	620	* Returns a new object copied from the first archetype matching
674	* the given type.	621	* the given type.
675	* Used in treasure-generation.	622	* Used in treasure-generation.
676	*/	623	*/
677
678	object *	624	object *
679	clone_arch (int type)	625	clone_arch (int type)
680	{	626	{
681	archetype *at;	627	archetype *at;
682		628
…		…
684	{	630	{
685	LOG (llevError, "Can't clone archetype %d\n", type);	631	LOG (llevError, "Can't clone archetype %d\n", type);
686	return 0;	632	return 0;
687	}	633	}
688		634
689	object *op = at->clone.clone ();	635	object *op = at->clone ();
690	op->instantiate ();	636	op->instantiate ();
691	return op;	637	return op;
692	}	638	}
693		639
694	/*	640	/*
695	* member: make instance from class	641	* member: make instance from class
696	*/	642	*/
697
698	object *	643	object *
699	object_create_arch (archetype *at)	644	object_create_arch (archetype *at)
700	{	645	{
701	object op, prev = 0, *head = 0;	646	object op, prev = 0, *head = 0;
702		647
703	while (at)	648	while (at)
704	{	649	{
705	op = arch_to_object (at);	650	op = arch_to_object (at);
		651
706	op->x = at->clone.x;	652	op->x = at->x;
707	op->y = at->clone.y;	653	op->y = at->y;
708		654
709	if (head)	655	if (head)
710	op->head = head, prev->more = op;	656	op->head = head, prev->more = op;
711		657
712	if (!head)	658	if (!head)
713	head = op;	659	head = op;
714		660
715	prev = op;	661	prev = op;
716	at = at->more;	662	at = (archetype *)at->more;
717	}	663	}
718		664
719	return (head);	665	return head;
720	}	666	}
721		667

Diff Legend

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

Comparing deliantra/server/common/arch.C (file contents): Revision 1.43 by root, Fri Feb 16 19:43:40 2007 UTC vs. Revision 1.79 by root, Sun May 4 11:12:40 2008 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 1.79 by root, Sun May 4 11:12:40 2008 UTC