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Comparing deliantra/server/common/arch.C (file contents):
Revision 1.50 by root, Mon Apr 16 13:02:28 2007 UTC vs.
Revision 1.69 by root, Tue Sep 4 18:20:35 2007 UTC

1/* 1/*
2 * CrossFire, A Multiplayer game for X-windows 2 * This file is part of Crossfire TRT, the Roguelike Realtime MORPG.
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
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 <crossfire@schmorp.de>
23 */ 22 */
24 23
25#include <cassert> 24#include <cassert>
26 25
27#include <global.h> 26#include <global.h>
37 * return an object. Perhaps those should be called 'archob' functions 36 * return an object. Perhaps those should be called 'archob' functions
38 * to denote they return an object derived from the archetype. 37 * to denote they return an object derived from the archetype.
39 * MSW 2003-04-29 38 * MSW 2003-04-29
40 */ 39 */
41 40
42bool loading_arch; // ugly flag to object laoder etc. to suppress/request special processing 41archetype *loading_arch; // ugly flag to object laoder etc. to suppress/request special processing
43 42
44// the hashtable 43// the hashtable
45typedef std::tr1::unordered_map 44typedef std::tr1::unordered_map
46 < 45 <
47 const char *, 46 const char *,
50 str_equal, 49 str_equal,
51 slice_allocator< std::pair<const char *const, arch_ptr> > 50 slice_allocator< std::pair<const char *const, arch_ptr> >
52 > HT; 51 > HT;
53 52
54static HT ht (5000); 53static HT ht (5000);
55static std::vector<archetype *> archetypes; 54archvec archetypes;
56 55
57/** 56/**
58 * GROS - This function retrieves an archetype given the name that appears 57 * GROS - This function retrieves an archetype given the name that appears
59 * during the game (for example, "writing pen" instead of "stylus"). 58 * during the game (for example, "writing pen" instead of "stylus").
60 * It does not use the hashtable system, but browse the whole archlist each time. 59 * It does not use the hashtable system, but browse the whole archlist each time.
68archetype * 67archetype *
69find_archetype_by_object_name (const char *name) 68find_archetype_by_object_name (const char *name)
70{ 69{
71 shstr_cmp name_cmp (name); 70 shstr_cmp name_cmp (name);
72 71
73 for (archetype *at = first_archetype; at; at = at->next) 72 for_all_archetypes (at)
74 if (at->clone.name == name_cmp) 73 if (at->name == name_cmp)
75 return at; 74 return at;
76 75
77 return 0; 76 return 0;
78} 77}
79 78
85archetype * 84archetype *
86find_archetype_by_object_type_name (int type, const char *name) 85find_archetype_by_object_type_name (int type, const char *name)
87{ 86{
88 shstr_cmp name_cmp (name); 87 shstr_cmp name_cmp (name);
89 88
90 for (archetype *at = first_archetype; at; at = at->next) 89 for_all_archetypes (at)
91 if (at->clone.name == name_cmp && at->clone.type == type) 90 if (at->name == name_cmp && at->type == type)
92 return at; 91 return at;
93 92
94 return 0; 93 return 0;
95} 94}
96 95
102object * 101object *
103get_archetype_by_skill_name (const char *skill, int type) 102get_archetype_by_skill_name (const char *skill, int type)
104{ 103{
105 shstr_cmp skill_cmp (skill); 104 shstr_cmp skill_cmp (skill);
106 105
107 for (archetype *at = first_archetype; at; at = at->next) 106 for_all_archetypes (at)
108 if (at->clone.skill == skill_cmp && (type == -1 || type == at->clone.type)) 107 if (at->skill == skill_cmp && (type == -1 || type == at->type))
109 return arch_to_object (at); 108 return arch_to_object (at);
110 109
111 return 0; 110 return 0;
112} 111}
113 112
119 * (eg, skills) 118 * (eg, skills)
120 */ 119 */
121archetype * 120archetype *
122get_archetype_by_type_subtype (int type, int subtype) 121get_archetype_by_type_subtype (int type, int subtype)
123{ 122{
124 for (archetype *at = first_archetype; at; at = at->next) 123 for_all_archetypes (at)
125 if ((type == -1 || type == at->clone.type) && (subtype == -1 || subtype == at->clone.subtype)) 124 if ((type == -1 || type == at->type) && (subtype == -1 || subtype == at->subtype))
126 return at; 125 return at;
127 126
128 return 0; 127 return 0;
129} 128}
130 129
157 } 156 }
158 157
159 return create_singularity (name); 158 return create_singularity (name);
160} 159}
161 160
162 /* This is a subset of the parse_id command. Basically, name can be 161/* This is a subset of the parse_id command. Basically, name can be
163 * a string seperated lists of things to match, with certain keywords. 162 * a string seperated lists of things to match, with certain keywords.
164 * pl is the player (only needed to set count properly) 163 * pl is the player (only needed to set count properly)
165 * op is the item we are trying to match. Calling function takes care 164 * op is the item we are trying to match. Calling function takes care
166 * of what action might need to be done and if it is valid 165 * of what action might need to be done and if it is valid
167 * (pickup, drop, etc.) Return NONZERO if we have a match. A higher 166 * (pickup, drop, etc.) Return NONZERO if we have a match. A higher
168 * value means a better match. 0 means no match. 167 * value means a better match. 0 means no match.
169 * 168 *
170 * Brief outline of the procedure: 169 * Brief outline of the procedure:
171 * We take apart the name variable into the individual components. 170 * We take apart the name variable into the individual components.
172 * cases for 'all' and unpaid are pretty obvious. 171 * cases for 'all' and unpaid are pretty obvious.
173 * Next, we check for a count (either specified in name, or in the 172 * Next, we check for a count (either specified in name, or in the
174 * player object.) 173 * player object.)
175 * If count is 1, make a quick check on the name. 174 * If count is 1, make a quick check on the name.
176 * IF count is >1, we need to make plural name. Return if match. 175 * IF count is >1, we need to make plural name. Return if match.
177 * Last, make a check on the full name. 176 * Last, make a check on the full name.
178 */ 177 */
179int 178int
180item_matched_string (object *pl, object *op, const char *name) 179item_matched_string (object *pl, object *op, const char *name)
181{ 180{
182 char *cp, local_name[MAX_BUF]; 181 char *cp, local_name[MAX_BUF];
183 int count, retval = 0; 182 int count, retval = 0;
275 } 274 }
276 275
277 return 0; 276 return 0;
278} 277}
279 278
280archetype::archetype () 279archetype::archetype (const char *name)
281{ 280{
281 stub = true;
282 clone.arch = this; 282 arch = this;
283 283 this->archname = this->name = this->name_pl = name;
284 CLEAR_FLAG (&clone, FLAG_FREED); /* This shouldn't matter, since copy_to */
285 SET_FLAG (&clone, FLAG_REMOVED); /* doesn't copy these flags... */
286} 284}
287 285
288archetype::~archetype () 286archetype::~archetype ()
289{ 287{
290 //TODO: nuke ->more's 288 unlink ();
291} 289}
292 290
293static void
294unlink (archetype *at)
295{
296 if (at->head)
297 at = at->head;
298
299 // destroy this archetype's link, making singletons out of its parts
300 while (at)
301 {
302 archetype *more = at->more;
303 at->clone.destroy_inv ();
304 at->head = at->more = 0;
305 at = more;
306 }
307}
308
309// dire hack, need to rationalise
310void 291void
311overwrite (archetype *at, object *op) 292archetype::link ()
312{ 293{
313 at->clone = *op; 294 ht.insert (std::make_pair (archname, this));
314
315 at->clone.arch = at;
316 at->clone.inv = op->inv; op->inv = 0;
317 295
318 op->destroy (); 296 if (!archetypes.contains (this))
297 archetypes.insert (this);
319} 298}
320 299
321bool 300void
301archetype::unlink ()
302{
303 ht.erase (archname);
304
305 if (archetypes.contains (this))
306 archetypes.erase (this);
307}
308
309/*
310 * Finds, using the hashtable, which archetype matches the given name.
311 * returns a pointer to the found archetype, otherwise NULL.
312 */
313archetype *
314archetype::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
327archetype *
328archetype::get (const char *name)
329{
330 if (!name)
331 {
332 LOG (llevError, "null archetype requested\n");
333 name = "(null)";
334 }
335
336 if (loading_arch && !strcmp (&loading_arch->archname, name))
337 return loading_arch;
338
339 archetype *at = find (name);
340
341 if (!at)
342 {
343 at = new archetype (name);
344 at->link ();
345 }
346
347 return at;
348}
349
350archetype *
322archetype::load (object_thawer &f) 351archetype::read (object_thawer &f)
323{ 352{
324 assert (f.kw == KW_object); 353 assert (f.kw == KW_object);
325 354
326 typedef std::pair<archetype *, object *> part;
327 std::vector<part> parts; 355 std::vector<archetype *> parts;
356
357 coroapi::cede_to_tick_every (10);
328 358
329 for (;;) 359 for (;;)
330 { 360 {
361 // the archetype might have been referenced earlier
362 // so try to find an existing stub archetype first
331 archetype *at = get (f.get_str ()); 363 archetype *at = find (f.get_str ());
332 object *op = object::create ();
333 364
365 if (!at || !at->stub)
366 at = new archetype (f.get_str ());
367
368 f.next ();
369
370#if 0
371 // implementing it here in the server does neither allow multiple inheritence
372 // nor does it cleanly "just override". it would allow use in map files, though,
373 // and other resource files dynamically laoded (as opposed to being preprocessed).
374 // not that any of this is relevant as of yet...
375 if (f.kw == KW_inherit)
376 {
377 if (archetype *at = find (f.get_str ()))
378 *op = at->clone;
379 else
380 LOG (llevError, "archetype '%s' tries to inherit from non-existent archetype '%s'.\n",
381 &at->archname, f.get_str ());
382
383 f.next ();
384 }
385#endif
386
387 loading_arch = at; // hack to tell parse_kv et al. to behave
388 bool parse_ok = at->parse_kv (f);
389 loading_arch = 0;
390
334 if (!op->parse_kv (f)) 391 if (!parse_ok)
335 goto fail; 392 goto fail;
336 393
337 parts.push_back (std::make_pair (at, op)); 394 loading_arch = at; // hack to tell parse_kv et al. to behave
395 at->post_load_check ();
396 loading_arch = 0;
397
398 parts.push_back (at);
338 399
339 if (f.kw != KW_more) 400 if (f.kw != KW_more)
340 break; 401 break;
341 402
342 f.next (); 403 f.next ();
404
343 assert (f.kw == KW_object); 405 if (f.kw != KW_object)
406 {
407 f.parse_error ("more object");
408 goto fail;
409 }
344 } 410 }
345 411
346 { 412 {
413 auto (at, parts.begin ());
414
347 archetype *head = parts.front ().first; 415 archetype *new_head = parts.front ();
416 archetype *old_head = find (new_head->archname);
348 417
349 // check that all archetypes belong to the same object or are heads 418 if (old_head && !old_head->is_head ())
350 for (AUTODECL (p, parts.begin ()); p != parts.end (); ++p)
351 { 419 {
352 archetype *at = p->first; 420 LOG (llevError, "%s: unable to overwrite non-head archetype '%s' with head archetype, skipping.\n",
421 &new_head->archname, &old_head->archname);
422 goto fail;
423 }
353 424
354 if (at->head != head && at->head) 425 // check that all archetypes belong to the same old object or are new
426 for (auto (at, parts.begin ()); at != parts.end (); ++at)
427 {
428 archetype *new_part = *at;
429 archetype *old_part = find (new_part->archname);
430
431 if (old_part && old_part->head_ () != old_head)
355 { 432 {
356 LOG (llevError, "%s: unable to overwrite foreign non-head archetype with non-head archetype\n", &at->name); 433 LOG (llevError, "%s: unable to overwrite archetype '%s' with archetype of different object, skipping.\n",
357 goto fail; 434 &new_part->archname, &((archetype *)old_part->head_ ())->archname);
358 }
359
360 if (at->next && at != head)
361 {
362 LOG (llevError, "%s: unable to overwrite foreign head archetype with non-head archetype\n", &at->name);
363 goto fail; 435 goto fail;
364 } 436 }
365 } 437 }
366 438
367 // sever chain of existing head object 439 // deactivate existing archetype
368 for (archetype *more, *at = head; at; at = more) 440 for (archetype *at = old_head; at; at = (archetype *)at->more)
441 at->unlink ();
442
443 // assemble new chain
444 new_head->min_x = new_head->max_x = new_head->x;
445 new_head->min_y = new_head->max_y = new_head->y;
446
447 archetype *less = new_head;
448 for (auto (p, parts.begin () + 1); p != parts.end (); ++p)
369 { 449 {
370 more = at->more; 450 archetype *at = *p;
371 451
452 // some flags get inherited formt he head (probably a lot more)
453 // doing it here doesn't feel too cozy, but it allows code
454 // to ignore head checks for these flags, which saves time
455 at->flag [FLAG_ALIVE] = new_head->flag [FLAG_ALIVE];
456 at->flag [FLAG_NO_PICK] = new_head->flag [FLAG_NO_PICK];
457 at->flag [FLAG_MONSTER] = new_head->flag [FLAG_MONSTER];
458 at->flag [FLAG_IS_FLOOR] = new_head->flag [FLAG_IS_FLOOR];
459
460 if (at->x < new_head->min_x) new_head->min_x = at->x;
461 if (at->y < new_head->min_y) new_head->min_y = at->y;
462 if (at->x > new_head->max_x) new_head->max_x = at->x;
463 if (at->y > new_head->max_y) new_head->max_y = at->y;
464
372 at->head = 0; 465 at->head = new_head;
373 at->more = 0; 466 less->more = at;
467 less = at;
374 } 468 }
375 469
376 // replace/update head 470 // now activate it
377 overwrite (head, parts.front ().second); 471 for (auto (p, parts.begin ()); p != parts.end (); ++p)
378 head->tail_x = 0;
379 head->tail_y = 0;
380
381 // link into list of heads, if not already there
382 if (!head->linked)
383 { 472 {
384 head->linked = true; 473 archetype *at = *p;
385 head->next = first_archetype; 474 at->stub = false;
386 first_archetype = head; 475 at->link ();
387 } 476 }
388 477
389 // reassemble new chain 478 return new_head;
390 archetype *prev = head;
391 for (AUTODECL (p, parts.begin () + 1); p != parts.end (); ++p)
392 {
393 archetype *at = p->first;
394 overwrite (at, p->second);
395
396 if (at->clone.x > head->tail_x) head->tail_x = at->clone.x;
397 if (at->clone.y > head->tail_y) head->tail_y = at->clone.y;
398
399 at->head = head;
400 at->clone.head = &head->clone;
401 prev->more = at;
402 prev->clone.more = &at->clone;
403
404 prev = at;
405 }
406 } 479 }
407 480
408 return true;
409
410fail: 481fail:
411 for (AUTODECL (p, parts.begin ()); p != parts.end (); ++p) 482 for (auto (p, parts.begin ()); p != parts.end (); ++p)
412 p->second->destroy (true); 483 (*p)->destroy (true);
413 484
414 return false; 485 return 0;
415} 486}
416 487
417/* 488/*
418 * Reads/parses the archetype-file, and copies into a linked list 489 * Initialize global archtype pointers:
419 * of archetype-structures.
420 */ 490 */
421static bool 491void
422load_archetypes (object_thawer &f) 492init_archetype_pointers ()
423{ 493{
424 for (;;) 494 ring_arch = archetype::find ("ring");
425 { 495 amulet_arch = archetype::find ("amulet");
426 switch (f.kw) 496 staff_arch = archetype::find ("staff");
427 { 497 crown_arch = archetype::find ("crown");
428 case KW_object:
429 loading_arch = true;
430 if (!archetype::load (f))
431 {
432 loading_arch = false;
433 return false;
434 }
435
436 loading_arch = false;
437 continue;
438
439 case KW_EOF:
440 return true;
441
442 default:
443 if (!f.parse_error ("archetypes file"))
444 return false;
445 }
446
447 f.next ();
448 }
449}
450
451/*
452 * First initialises the archtype hash-table (init_archetable()).
453 * Reads and parses the archetype file (with the first and second-pass
454 * functions).
455 */
456bool
457load_archetype_file (const char *filename)
458{
459 object_thawer f (filename);
460
461 f.next ();
462
463 // make sure the next - long - step is only done after a tick
464 coroapi::wait_for_tick_begin ();
465
466 if (!load_archetypes (f))
467 return false;
468
469 warn_archetypes = 1;
470
471 empty_archetype = archetype::find ("empty_archetype"); 498 empty_archetype = archetype::find ("empty_archetype");
472 if (!empty_archetype)
473 return false;
474
475 coroapi::cede ();
476
477 return true;
478} 499}
479 500
480/* 501/*
481 * Creates and returns a new object which is a copy of the given archetype. 502 * Creates and returns a new object which is a copy of the given archetype.
482 * This function returns NULL on failure. 503 * This function returns NULL on failure.
484object * 505object *
485arch_to_object (archetype *at) 506arch_to_object (archetype *at)
486{ 507{
487 if (!at) 508 if (!at)
488 { 509 {
489 if (warn_archetypes)
490 LOG (llevError, "Couldn't find archetype.\n"); 510 LOG (llevError, "Couldn't find archetype.\n");
491
492 return NULL; 511 return 0;
493 } 512 }
494 513
495 object *op = at->clone.clone (); 514 object *op = at->clone ();
496 op->arch = at; 515 op->arch = at;
497 op->instantiate (); 516 op->instantiate ();
517
498 return op; 518 return op;
499} 519}
500 520
501/* 521/*
502 * Creates an object. This function is called by get_archetype() 522 * Creates an object. This function is called by get_archetype()
505 * an object, and never NULL. 525 * an object, and never NULL.
506 */ 526 */
507object * 527object *
508create_singularity (const char *name) 528create_singularity (const char *name)
509{ 529{
510 object *op; 530 LOG (llevError | logBacktrace, "FATAL: creating singularity for '%s'.\n", name);
531
532 if (!strcmp (name, "bug"))
533 abort ();
534
511 char buf[MAX_BUF]; 535 char buf[MAX_BUF];
536 sprintf (buf, "bug, please report (%s)", name);
512 537
513 sprintf (buf, "%s (%s)", ARCH_SINGULARITY, name); 538 object *op = get_archetype ("bug");
514 op = object::create ();
515 op->name = op->name_pl = buf; 539 op->name = op->name_pl = buf;
516 SET_FLAG (op, FLAG_NO_PICK); 540
517 return op; 541 return op;
518} 542}
519 543
520/* 544/*
521 * Finds which archetype matches the given name, and returns a new 545 * Finds which archetype matches the given name, and returns a new
531 555
532 return arch_to_object (at); 556 return arch_to_object (at);
533} 557}
534 558
535/* 559/*
536 * Finds, using the hashtable, which archetype matches the given name.
537 * returns a pointer to the found archetype, otherwise NULL.
538 */
539archetype *
540archetype::find (const char *name)
541{
542 if (!name)
543 return 0;
544
545 AUTODECL (i, ht.find (name));
546
547 if (i == ht.end ())
548 return 0;
549 else
550 return i->second;
551}
552
553archetype *
554archetype::get (const char *name)
555{
556 archetype *at = find (name);
557
558 if (!at)
559 {
560 archetypes.push_back (at = new archetype);
561 at->name = name;
562 at->hash_add ();
563 }
564
565 return at;
566}
567
568/*
569 * Adds an archetype to the hashtable.
570 */
571void
572archetype::hash_add ()
573{
574 ht.insert (std::make_pair (name, this));
575}
576
577void
578archetype::hash_del ()
579{
580 ht.erase (name);
581}
582
583/*
584 * Returns the first archetype using the given type. 560 * Returns the first archetype using the given type.
585 * Used in treasure-generation. 561 * Used in treasure-generation.
586 */ 562 */
587archetype * 563archetype *
588type_to_archetype (int type) 564type_to_archetype (int type)
589{ 565{
590 for (archetype *at = first_archetype; at; at = at->more == 0 ? at->next : at->more) 566 for_all_archetypes (at)
591 if (at->clone.type == type) 567 if (at->type == type && at->head_ () != at)
592 return at; 568 return at;
593 569
594 return 0; 570 return 0;
595} 571}
596 572
608 { 584 {
609 LOG (llevError, "Can't clone archetype %d\n", type); 585 LOG (llevError, "Can't clone archetype %d\n", type);
610 return 0; 586 return 0;
611 } 587 }
612 588
613 object *op = at->clone.clone (); 589 object *op = at->clone ();
614 op->instantiate (); 590 op->instantiate ();
615 return op; 591 return op;
616} 592}
617 593
618/* 594/*
619 * member: make instance from class 595 * member: make instance from class
620 */ 596 */
621
622object * 597object *
623object_create_arch (archetype *at) 598object_create_arch (archetype *at)
624{ 599{
625 object *op, *prev = 0, *head = 0; 600 object *op, *prev = 0, *head = 0;
626 601
627 while (at) 602 while (at)
628 { 603 {
629 op = arch_to_object (at); 604 op = arch_to_object (at);
605
630 op->x = at->clone.x; 606 op->x = at->x;
631 op->y = at->clone.y; 607 op->y = at->y;
632 608
633 if (head) 609 if (head)
634 op->head = head, prev->more = op; 610 op->head = head, prev->more = op;
635 611
636 if (!head) 612 if (!head)
637 head = op; 613 head = op;
638 614
639 prev = op; 615 prev = op;
640 at = at->more; 616 at = (archetype *)at->more;
641 } 617 }
642 618
643 return (head); 619 return head;
644} 620}
645 621

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