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Comparing deliantra/server/common/arch.C (file contents):
Revision 1.44 by pippijn, Thu Mar 1 11:14:45 2007 UTC vs.
Revision 1.63 by root, Mon Jun 4 13:04:00 2007 UTC

1/* 1/*
2 * CrossFire, A Multiplayer game for X-windows 2 * This file is part of Crossfire TRT, the Multiplayer Online Role Playing Game.
3 * 3 *
4 * Copyright (C) 2005, 2006, 2007 Marc Lehmann & Crossfire+ Development Team 4 * Copyright (©) 2005,2006,2007 Marc Alexander Lehmann / Robin Redeker / the Crossfire TRT 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 * Crossfire TRT is free software; you can redistribute it and/or modify it
9 * it under the terms of the GNU General Public License as published by 9 * under the terms of the GNU General Public License as published by the Free
10 * the Free Software Foundation; either version 2 of the License, or 10 * Software Foundation; either version 2 of the License, or (at your option)
11 * (at your option) any later version. 11 * 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, but
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
16 * GNU General Public License for more details. 16 * 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 along
19 * along with this program; if not, write to the Free Software 19 * with Crossfire TRT; if not, write to the Free Software Foundation, Inc. 51
20 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 20 * Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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 <crossfire@schmorp.de>
23 */ 23 */
24 24
25#include <cassert> 25#include <cassert>
26 26
27#include <global.h> 27#include <global.h>
28#include <funcpoint.h> 28#include <funcpoint.h>
29#include <loader.h> 29#include <loader.h>
30 30
31#include <tr1/functional> 31#include <tr1/functional>
32#include <tr1/unordered_map> 32#include <tr1/unordered_map>
33
34int arch_init; /* True if doing arch initialization */
35 33
36/* The naming of these functions is really poor - they are all 34/* The naming of these functions is really poor - they are all
37 * pretty much named '.._arch_...', but they may more may not 35 * pretty much named '.._arch_...', but they may more may not
38 * return archetypes. Some make the arch_to_object call, and thus 36 * return archetypes. Some make the arch_to_object call, and thus
39 * return an object. Perhaps those should be called 'archob' functions 37 * return an object. Perhaps those should be called 'archob' functions
40 * to denote they return an object derived from the archetype. 38 * to denote they return an object derived from the archetype.
41 * MSW 2003-04-29 39 * MSW 2003-04-29
42 */ 40 */
41
42bool loading_arch; // ugly flag to object laoder etc. to suppress/request special processing
43 43
44// the hashtable 44// the hashtable
45typedef std::tr1::unordered_map 45typedef std::tr1::unordered_map
46 < 46 <
47 const char *, 47 const char *,
… …
50 str_equal, 50 str_equal,
51 slice_allocator< std::pair<const char *const, arch_ptr> > 51 slice_allocator< std::pair<const char *const, arch_ptr> >
52 > HT; 52 > HT;
53 53
54static HT ht (5000); 54static HT ht (5000);
55archvec archetypes;
55 56
56/** 57/**
57 * GROS - This function retrieves an archetype given the name that appears 58 * GROS - This function retrieves an archetype given the name that appears
58 * during the game (for example, "writing pen" instead of "stylus"). 59 * 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. 60 * It does not use the hashtable system, but browse the whole archlist each time.
… …
67archetype * 68archetype *
68find_archetype_by_object_name (const char *name) 69find_archetype_by_object_name (const char *name)
69{ 70{
70 shstr_cmp name_cmp (name); 71 shstr_cmp name_cmp (name);
71 72
72 for (archetype *at = first_archetype; at; at = at->next) 73 for_all_archetypes (at)
73 if (at->clone.name == name_cmp) 74 if (at->archname == name_cmp)
74 return at; 75 return at;
75 76
76 return 0; 77 return 0;
77} 78}
78 79
… …
84archetype * 85archetype *
85find_archetype_by_object_type_name (int type, const char *name) 86find_archetype_by_object_type_name (int type, const char *name)
86{ 87{
87 shstr_cmp name_cmp (name); 88 shstr_cmp name_cmp (name);
88 89
89 for (archetype *at = first_archetype; at; at = at->next) 90 for_all_archetypes (at)
90 if (at->clone.name == name_cmp && at->clone.type == type) 91 if (at->archname == name_cmp && at->type == type)
91 return at; 92 return at;
92 93
93 return 0; 94 return 0;
94} 95}
95 96
… …
101object * 102object *
102get_archetype_by_skill_name (const char *skill, int type) 103get_archetype_by_skill_name (const char *skill, int type)
103{ 104{
104 shstr_cmp skill_cmp (skill); 105 shstr_cmp skill_cmp (skill);
105 106
106 for (archetype *at = first_archetype; at; at = at->next) 107 for_all_archetypes (at)
107 if (at->clone.skill == skill_cmp && (type == -1 || type == at->clone.type)) 108 if (at->skill == skill_cmp && (type == -1 || type == at->type))
108 return arch_to_object (at); 109 return arch_to_object (at);
109 110
110 return 0; 111 return 0;
111} 112}
112 113
… …
118 * (eg, skills) 119 * (eg, skills)
119 */ 120 */
120archetype * 121archetype *
121get_archetype_by_type_subtype (int type, int subtype) 122get_archetype_by_type_subtype (int type, int subtype)
122{ 123{
123 for (archetype *at = first_archetype; at; at = at->next) 124 for_all_archetypes (at)
124 if ((type == -1 || type == at->clone.type) && (subtype == -1 || subtype == at->clone.subtype)) 125 if ((type == -1 || type == at->type) && (subtype == -1 || subtype == at->subtype))
125 return at; 126 return at;
126 127
127 return 0; 128 return 0;
128} 129}
129 130
… …
274 } 275 }
275 276
276 return 0; 277 return 0;
277} 278}
278 279
279/* 280archetype::archetype (const char *name)
280 * Initialises the internal linked list of archetypes (read from file). 281{
281 * Then the global "empty_archetype" pointer is initialised. 282 stub = true;
282 * Then the blocksview[] array is initialised. 283 arch = this;
283 */ 284 this->archname = this->name = this->name_pl = name;
285}
286
287archetype::~archetype ()
288{
289 unlink ();
290}
284 291
285void 292void
286init_archetypes (void) 293archetype::link ()
287{ /* called from add_player() and edit() */ 294{
288 if (first_archetype != NULL) /* Only do this once */ 295 ht.insert (std::make_pair (archname, this));
289 return;
290 296
291 arch_init = 1; 297 if (!archetypes.contains (this))
292 load_archetypes (); 298 archetypes.insert (this);
293 arch_init = 0;
294 empty_archetype = archetype::find ("empty_archetype");
295
296/* init_blocksview();*/
297} 299}
298 300
299/*
300 * An alternative way to init the hashtable which is slower, but _works_...
301 */
302void 301void
303init_archetable (void) 302archetype::unlink ()
304{ 303{
305 LOG (llevDebug, " Setting up archetable...\n"); 304 ht.erase (archname);
306 305
307 for (archetype *at = first_archetype; at; at = at->next) 306 if (archetypes.contains (this))
308 for (archetype *bt = at; bt; bt = bt->more) 307 archetypes.erase (this);
309 bt->hash_add ();
310
311 LOG (llevDebug, "done\n");
312} 308}
313 309
314void 310/*
315free_all_archs (void) 311 * Finds, using the hashtable, which archetype matches the given name.
312 * returns a pointer to the found archetype, otherwise NULL.
313 */
314archetype *
315archetype::find (const char *name)
316{ 316{
317 archetype *at, *next; 317 if (!name)
318 int i = 0, f = 0; 318 return 0;
319 319
320 for (at = first_archetype; at; at = next) 320 auto (i, ht.find (name));
321 { 321
322 if (at->more) 322 if (i == ht.end ())
323 next = at->more; 323 return 0;
324 else 324 else
325 next = at->next; 325 return i->second;
326}
326 327
327 delete 328archetype *
328 at; 329archetype::get (const char *name)
329 330{
330 i++; 331 if (!name)
331 } 332 {
333 LOG (llevError, "null archetype requested\n");
334 name = "(null)";
335 }
332 336
333 LOG (llevDebug, "Freed %d archetypes, %d faces\n", i, f); 337 archetype *at = find (name);
334}
335 338
336archetype::archetype () 339 if (loading_arch && at && !at->stub)
337{ 340 {
338 clone.arch = this; 341 at->unlink ();
342 at = 0;
343 }
339 344
340 CLEAR_FLAG (&clone, FLAG_FREED); /* This shouldn't matter, since copy_to */ 345 if (!at || (!at->stub && loading_arch))
341 SET_FLAG (&clone, FLAG_REMOVED); /* doesn't copy these flags... */ 346 {
342} 347 at = new archetype (name);
348 at->link ();
349 }
343 350
344archetype::~archetype () 351 return at;
345{
346 //TODO: nuke ->more's
347} 352}
348 353
349archetype * 354archetype *
350archetype::read (object_thawer &f) 355archetype::read (object_thawer &f)
351{ 356{
352 assert (f.kw == KW_object); 357 assert (f.kw == KW_object);
353 358
354 archetype *head = new archetype; 359 loading_arch = true; // hack to tell parse_kv et al. to behave
355 f.get (head->name);
356 360
357 if (!head->clone.parse_kv (f)) 361 std::vector<archetype *> parts;
358 { 362
359 delete head; 363 coroapi::cede_to_tick_every (10);
360 return 0; 364
365 for (;;)
361 } 366 {
367 // the archetype might have been referenced earlier
368 // so try to find an existing stub archetype first
369 archetype *at = find (f.get_str ());
362 370
363 for (archetype *prev = head; f.kw == KW_more; ) 371 if (!at || !at->stub)
364 { 372 at = new archetype (f.get_str ());
373
365 f.next (); 374 f.next ();
366 375
367 assert (f.kw == KW_object); 376#if 0
368 377 // implementing it here in the server does neither allow multiple inheritence
369 archetype *more = new archetype; 378 // nor does it cleanly "just override". it would allow use in map files, though,
370 f.get (more->name); 379 // and other resource files dynamically laoded (as opposed to being preprocessed).
371 380 // not that any of this is relevant as of yet...
372 if (!more->clone.parse_kv (f)) 381 if (f.kw == KW_inherit)
373 { 382 {
374 delete head; 383 if (archetype *at = find (f.get_str ()))
375 return 0; 384 *op = at->clone;
385 else
386 LOG (llevError, "archetype '%s' tries to inherit from non-existent archetype '%s'.\n",
387 &at->archname, f.get_str ());
388
389 f.next ();
376 } 390 }
391#endif
377 392
378 if (more->clone.x > head->tail_x) head->tail_x = more->clone.x; 393 if (!at->parse_kv (f))
379 if (more->clone.y > head->tail_y) head->tail_y = more->clone.y; 394 goto fail;
380 395
381 more->head = head; 396 at->post_load_check ();
382 more->clone.head = &head->clone;
383 prev->more = more;
384 prev->clone.more = &more->clone;
385 397
386 prev = more; 398 parts.push_back (at);
387 }
388 399
389 head->next = first_archetype; 400 if (f.kw != KW_more)
390 first_archetype = head; 401 break;
391 402
392 return head; 403 f.next ();
393}
394 404
395/* 405 if (f.kw != KW_object)
396 * Reads/parses the archetype-file, and copies into a linked list
397 * of archetype-structures.
398 */
399static bool
400first_arch_pass (object_thawer &f)
401{
402 for (;;)
403 {
404 switch (f.kw)
405 { 406 {
406 case KW_object: 407 f.parse_error ("more object");
407 if (!archetype::read (f)) 408 goto fail;
408 return false;
409 continue;
410
411 case KW_EOF:
412 return true;
413
414 default:
415 if (!f.parse_error ("archetypes file"))
416 return false;
417 } 409 }
410 }
418 411
419 f.next (); 412 loading_arch = false;
413
414 {
415 auto (at, parts.begin ());
416
417 archetype *new_head = parts.front ();
418 archetype *old_head = find (new_head->archname);
419
420 for (auto (at, parts.begin ()); at != parts.end (); ++at)
421 fprintf (stderr, "%d: %s\n", at - parts.begin(), &(*at)->archname);//D
422
423 // check that all archetypes belong to the same old object or are new
424 for (auto (at, parts.begin ()); at != parts.end (); ++at)
425 {
426 archetype *new_part = *at;
427 archetype *old_part = find (new_part->archname);
428
429 if (old_part && old_part->head_ () != old_head)
430 {
431 fprintf (stderr, "nhn %s\n", &new_head->archname);//D
432 fprintf (stderr, "old_head %p,%p new_head %p,%p ph %p\n", old_head, old_part, new_head, new_part, old_part->head_());
433 LOG (llevError, "%s: unable to overwrite archetype '%s' with archetype of different object, skipping.\n",
434 &new_part->archname, &((archetype *)old_part->head_ ())->archname);
435 goto fail;
436 }
420 } 437 }
421}
422 438
439 fprintf (stderr, "oh %p %s\n", old_head, &new_head->archname);//D
440
441 // deactivate existing archetype
442 for (archetype *at = old_head; at; at = (archetype *)at->more)
443 at->unlink ();
444
445 // reassemble new chain
446 new_head->min_x = new_head->max_x = new_head->x;
447 new_head->min_y = new_head->max_y = new_head->y;
448
449 archetype *less = new_head;
450 archetype *head = 0;
451 for (auto (p, parts.begin () + 1); p != parts.end (); ++p)
452 {
453 archetype *at = *p;
454
455 if (at->x < new_head->min_x) new_head->min_x = at->x;
456 if (at->y < new_head->min_y) new_head->min_y = at->y;
457 if (at->x > new_head->max_x) new_head->max_x = at->x;
458 if (at->y > new_head->max_y) new_head->max_y = at->y;
459
460 at->head = head; head = new_head;
461 less->more = at; less = at;
462 }
463
464 // now activate it
465 for (auto (p, parts.begin ()); p != parts.end (); ++p)
466 {
467 archetype *at = *p;
468 at->stub = false;
469 at->link ();
470 }
471
472 return new_head;
473 }
474
475fail:
476 for (auto (p, parts.begin ()); p != parts.end (); ++p)
477 (*p)->destroy (true);
478
479 loading_arch = false;
480 return 0;
481}
482
423/* 483/*
424 * Reads the archetype file once more, and links all pointers between 484 * Initialize global archtype pointers:
425 * archetypes.
426 */ 485 */
427void 486void
428second_arch_pass (object_thawer & thawer) 487init_archetype_pointers ()
429{ 488{
430 char buf[MAX_BUF], *variable = buf, *argument, *cp; 489 ring_arch = archetype::find ("ring");
431 archetype *at = NULL, *other; 490 amulet_arch = archetype::find ("amulet");
432 491 staff_arch = archetype::find ("staff");
433 while (fgets (buf, MAX_BUF, thawer) != NULL) 492 crown_arch = archetype::find ("crown");
434 { 493 empty_archetype = archetype::find ("empty_archetype");
435 if (*buf == '#')
436 continue;
437
438 if ((argument = strchr (buf, ' ')) != NULL)
439 {
440 *argument = '\0', argument++;
441 cp = argument + strlen (argument) - 1;
442 while (isspace (*cp))
443 {
444 *cp = '\0';
445 cp--;
446 }
447 }
448
449 if (!strcmp ("object", variable))
450 {
451 if ((at = archetype::find (argument)) == NULL)
452 LOG (llevError, "Warning: failed to find arch %s\n", argument);
453 }
454 else if (!strcmp ("other_arch", variable))
455 {
456 if (at != NULL && at->clone.other_arch == NULL)
457 {
458 if ((other = archetype::find (argument)) == NULL)
459 LOG (llevError, "Warning: failed to find other_arch %s\n", argument);
460 else if (at != NULL)
461 at->clone.other_arch = other;
462 }
463 }
464 else if (!strcmp ("randomitems", variable))
465 {
466 if (at)
467 {
468 treasurelist *tl = find_treasurelist (argument);
469
470 if (tl == NULL)
471 LOG (llevError, "Failed to link treasure to arch (%s): %s\n", &at->name, argument);
472 else
473 at->clone.randomitems = tl;
474 }
475 }
476 }
477}
478
479#ifdef DEBUG
480void
481check_generators (void)
482{
483 archetype *at;
484
485 for (at = first_archetype; at != NULL; at = at->next)
486 if (QUERY_FLAG (&at->clone, FLAG_GENERATOR) && at->clone.other_arch == NULL)
487 LOG (llevError, "Warning: %s is generator but lacks other_arch.\n", &at->name);
488}
489#endif
490
491/*
492 * First initialises the archtype hash-table (init_archetable()).
493 * Reads and parses the archetype file (with the first and second-pass
494 * functions).
495 * Then initialises treasures by calling load_treasures().
496 */
497
498void
499load_archetypes (void)
500{
501 char filename[MAX_BUF];
502
503 sprintf (filename, "%s/%s", settings.datadir, settings.archetypes);
504 LOG (llevDebug, "Reading archetypes from %s:\n", filename);
505
506 {
507 object_thawer f (filename);
508
509 f.next ();
510
511 LOG (llevDebug, " arch-pass 1...\n");
512 if (!first_arch_pass (f))
513 cleanup ("errors during first arch pass are fatal");
514 LOG (llevDebug, " done\n");
515 }
516
517 init_archetable ();
518 warn_archetypes = 1;
519
520 {
521 object_thawer f (filename);
522
523 LOG (llevDebug, " loading treasure...\n");
524 load_treasures ();
525 LOG (llevDebug, " done\n");
526 LOG (llevDebug, " arch-pass 2...\n");
527 second_arch_pass (f);
528 LOG (llevDebug, " done\n");
529#ifdef DEBUG
530 check_generators ();
531#endif
532 }
533 LOG (llevDebug, " done\n");
534} 494}
535 495
536/* 496/*
537 * Creates and returns a new object which is a copy of the given archetype. 497 * Creates and returns a new object which is a copy of the given archetype.
538 * This function returns NULL on failure. 498 * This function returns NULL on failure.
… …
540object * 500object *
541arch_to_object (archetype *at) 501arch_to_object (archetype *at)
542{ 502{
543 if (!at) 503 if (!at)
544 { 504 {
545 if (warn_archetypes)
546 LOG (llevError, "Couldn't find archetype.\n"); 505 LOG (llevError, "Couldn't find archetype.\n");
547
548 return NULL; 506 return 0;
549 } 507 }
550 508
551 object *op = at->clone.clone (); 509 object *op = at->clone ();
552 op->arch = at; 510 op->arch = at;
553 op->instantiate (); 511 op->instantiate ();
512
554 return op; 513 return op;
555} 514}
556 515
557/* 516/*
558 * Creates an object. This function is called by get_archetype() 517 * Creates an object. This function is called by get_archetype()
… …
587 546
588 return arch_to_object (at); 547 return arch_to_object (at);
589} 548}
590 549
591/* 550/*
592 * Hash-function used by the arch-hashtable.
593 */
594
595unsigned long
596hasharch (const char *str, int tablesize)
597{
598 unsigned long hash = 0;
599 unsigned int i = 0;
600 const char *p;
601
602 /* use the one-at-a-time hash function, which supposedly is
603 * better than the djb2-like one used by perl5.005, but
604 * certainly is better then the bug used here before.
605 * see http://burtleburtle.net/bob/hash/doobs.html
606 */
607 for (p = str; i < MAXSTRING && *p; p++, i++)
608 {
609 hash += *p;
610 hash += hash << 10;
611 hash ^= hash >> 6;
612 }
613
614 hash += hash << 3;
615 hash ^= hash >> 11;
616 hash += hash << 15;
617
618 return hash % tablesize;
619}
620
621/*
622 * Finds, using the hashtable, which archetype matches the given name.
623 * returns a pointer to the found archetype, otherwise NULL.
624 */
625archetype *
626archetype::find (const char *name)
627{
628 if (!name)
629 return 0;
630
631 AUTODECL (i, ht.find (name));
632
633 if (i == ht.end ())
634 return 0;
635 else
636 return i->second;
637}
638
639/*
640 * Adds an archetype to the hashtable.
641 */
642void
643archetype::hash_add ()
644{
645 ht.insert (std::make_pair (name, this));
646}
647
648void
649archetype::hash_del ()
650{
651 ht.erase (name);
652}
653
654/*
655 * Returns the first archetype using the given type. 551 * Returns the first archetype using the given type.
656 * Used in treasure-generation. 552 * Used in treasure-generation.
657 */ 553 */
658archetype * 554archetype *
659type_to_archetype (int type) 555type_to_archetype (int type)
660{ 556{
661 archetype *at; 557 for_all_archetypes (at)
662 558 if (at->type == type && at->head_ () != at)
663 for (at = first_archetype; at; at = at->more == 0 ? at->next : at->more)
664 if (at->clone.type == type)
665 return at; 559 return at;
666 560
667 return 0; 561 return 0;
668} 562}
669 563
670/* 564/*
671 * Returns a new object copied from the first archetype matching 565 * Returns a new object copied from the first archetype matching
672 * the given type. 566 * the given type.
673 * Used in treasure-generation. 567 * Used in treasure-generation.
674 */ 568 */
675
676object * 569object *
677clone_arch (int type) 570clone_arch (int type)
678{ 571{
679 archetype *at; 572 archetype *at;
680 573
… …
682 { 575 {
683 LOG (llevError, "Can't clone archetype %d\n", type); 576 LOG (llevError, "Can't clone archetype %d\n", type);
684 return 0; 577 return 0;
685 } 578 }
686 579
687 object *op = at->clone.clone (); 580 object *op = at->clone ();
688 op->instantiate (); 581 op->instantiate ();
689 return op; 582 return op;
690} 583}
691 584
692/* 585/*
693 * member: make instance from class 586 * member: make instance from class
694 */ 587 */
695
696object * 588object *
697object_create_arch (archetype *at) 589object_create_arch (archetype *at)
698{ 590{
699 object *op, *prev = 0, *head = 0; 591 object *op, *prev = 0, *head = 0;
700 592
701 while (at) 593 while (at)
702 { 594 {
703 op = arch_to_object (at); 595 op = arch_to_object (at);
596
704 op->x = at->clone.x; 597 op->x = at->x;
705 op->y = at->clone.y; 598 op->y = at->y;
706 599
707 if (head) 600 if (head)
708 op->head = head, prev->more = op; 601 op->head = head, prev->more = op;
709 602
710 if (!head) 603 if (!head)
711 head = op; 604 head = op;
712 605
713 prev = op; 606 prev = op;
714 at = at->more; 607 at = (archetype *)at->more;
715 } 608 }
716 609
717 return (head); 610 return head;
718} 611}
719 612

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