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Comparing deliantra/server/common/arch.C (file contents):
Revision 1.57 by root, Thu Apr 19 19:24:25 2007 UTC vs.
Revision 1.73 by root, Sun Apr 20 00:44:12 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>
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/* The naming of these functions is really poor - they are all
35 * pretty much named '.._arch_...', but they may more may not
36 * return archetypes. Some make the arch_to_object call, and thus
37 * return an object. Perhaps those should be called 'archob' functions
38 * to denote they return an object derived from the archetype.
39 * MSW 2003-04-29
40 */
41
42bool loading_arch; // ugly flag to object laoder etc. to suppress/request special processing 33archetype *loading_arch; // ugly flag to object laoder etc. to suppress/request special processing
34archetype *archetype::empty;
43 35
44// the hashtable 36// the hashtable
45typedef std::tr1::unordered_map 37typedef std::tr1::unordered_map
46 < 38 <
47 const char *, 39 const char *,
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
54static HT ht (5000); 46static HT ht (5000);
47archvec archetypes;
48
49// the vector of other_arch references to be resolved
50static std::vector< std::pair<arch_ptr *, shstr> > postponed_arch_ref;
51// the vector of loaded but not yet committed archetypes
55static std::vector<archetype *> archetypes; 52static std::vector<archetype *> postponed_arch;
56 53
57/** 54/**
58 * GROS - This function retrieves an archetype given the name that appears 55 * GROS - This function retrieves an archetype given the name that appears
59 * during the game (for example, "writing pen" instead of "stylus"). 56 * 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. 57 * It does not use the hashtable system, but browse the whole archlist each time.
68archetype * 65archetype *
69find_archetype_by_object_name (const char *name) 66find_archetype_by_object_name (const char *name)
70{ 67{
71 shstr_cmp name_cmp (name); 68 shstr_cmp name_cmp (name);
72 69
73 for (archetype *at = first_archetype; at; at = at->next) 70 for_all_archetypes (at)
74 if (at->clone.name == name_cmp) 71 if (at->name == name_cmp)
75 return at; 72 return at;
76 73
77 return 0; 74 return 0;
78} 75}
79 76
85archetype * 82archetype *
86find_archetype_by_object_type_name (int type, const char *name) 83find_archetype_by_object_type_name (int type, const char *name)
87{ 84{
88 shstr_cmp name_cmp (name); 85 shstr_cmp name_cmp (name);
89 86
90 for (archetype *at = first_archetype; at; at = at->next) 87 for_all_archetypes (at)
91 if (at->clone.name == name_cmp && at->clone.type == type) 88 if (at->name == name_cmp && at->type == type)
92 return at; 89 return at;
93 90
94 return 0; 91 return 0;
95} 92}
96 93
102object * 99object *
103get_archetype_by_skill_name (const char *skill, int type) 100get_archetype_by_skill_name (const char *skill, int type)
104{ 101{
105 shstr_cmp skill_cmp (skill); 102 shstr_cmp skill_cmp (skill);
106 103
107 for (archetype *at = first_archetype; at; at = at->next) 104 for_all_archetypes (at)
108 if (at->clone.skill == skill_cmp && (type == -1 || type == at->clone.type)) 105 if (at->skill == skill_cmp && (type == -1 || type == at->type))
109 return arch_to_object (at); 106 return arch_to_object (at);
110 107
111 return 0; 108 return 0;
112} 109}
113 110
119 * (eg, skills) 116 * (eg, skills)
120 */ 117 */
121archetype * 118archetype *
122get_archetype_by_type_subtype (int type, int subtype) 119get_archetype_by_type_subtype (int type, int subtype)
123{ 120{
124 for (archetype *at = first_archetype; at; at = at->next) 121 for_all_archetypes (at)
125 if ((type == -1 || type == at->clone.type) && (subtype == -1 || subtype == at->clone.subtype)) 122 if ((type == -1 || type == at->type) && (subtype == -1 || subtype == at->subtype))
126 return at; 123 return at;
127 124
128 return 0; 125 return 0;
129} 126}
130 127
157 } 154 }
158 155
159 return create_singularity (name); 156 return create_singularity (name);
160} 157}
161 158
162 /* This is a subset of the parse_id command. Basically, name can be 159/* 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. 160 * a string seperated lists of things to match, with certain keywords.
164 * pl is the player (only needed to set count properly) 161 * pl is the player (only needed to set count properly)
165 * op is the item we are trying to match. Calling function takes care 162 * 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 163 * 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 164 * (pickup, drop, etc.) Return NONZERO if we have a match. A higher
168 * value means a better match. 0 means no match. 165 * value means a better match. 0 means no match.
169 * 166 *
170 * Brief outline of the procedure: 167 * Brief outline of the procedure:
171 * We take apart the name variable into the individual components. 168 * We take apart the name variable into the individual components.
172 * cases for 'all' and unpaid are pretty obvious. 169 * cases for 'all' and unpaid are pretty obvious.
173 * Next, we check for a count (either specified in name, or in the 170 * Next, we check for a count (either specified in name, or in the
174 * player object.) 171 * player object.)
175 * If count is 1, make a quick check on the name. 172 * 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. 173 * IF count is >1, we need to make plural name. Return if match.
177 * Last, make a check on the full name. 174 * Last, make a check on the full name.
178 */ 175 */
179int 176int
180item_matched_string (object *pl, object *op, const char *name) 177item_matched_string (object *pl, object *op, const char *name)
181{ 178{
182 char *cp, local_name[MAX_BUF]; 179 char *cp, local_name[MAX_BUF];
183 int count, retval = 0; 180 int count, retval = 0;
275 } 272 }
276 273
277 return 0; 274 return 0;
278} 275}
279 276
280archetype::archetype () 277archetype::archetype (const char *name)
281{ 278{
282 clone.arch = this; 279 arch = this;
283 280 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} 281}
287 282
288archetype::~archetype () 283archetype::~archetype ()
289{ 284{
290 //TODO: nuke ->more's 285 unlink ();
291} 286}
292 287
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 288void
311overwrite (archetype *at, object *op) 289archetype::link ()
312{ 290{
313 at->clone = *op; 291 ht.insert (std::make_pair (archname, this));
314 at->clone.arch = at;
315 292
316 at->clone.inv = op->inv; op->inv = 0; 293 if (!archetypes.contains (this))
294 archetypes.insert (this);
295}
317 296
318 op->destroy (); 297void
298archetype::unlink ()
299{
300 ht.erase (archname);
301
302 if (archetypes.contains (this))
303 archetypes.erase (this);
304}
305
306/*
307 * Finds, using the hashtable, which archetype matches the given name.
308 * returns a pointer to the found archetype, otherwise NULL.
309 */
310archetype *
311archetype::find (const char *name)
312{
313 if (!name)
314 return 0;
315
316 auto (i, ht.find (name));
317
318 if (i == ht.end ())
319 return 0;
320 else
321 return i->second;
319} 322}
320 323
321archetype * 324archetype *
322archetype::read (object_thawer &f) 325archetype::read (object_thawer &f)
323{ 326{
324 assert (f.kw == KW_object); 327 assert (f.kw == KW_object);
325 328
326 loading_arch = true; // hack to tell parse_kv et al. to behave
327
328 typedef std::pair<archetype *, object *> part;
329 std::vector<part> parts; 329 std::vector<archetype *> parts;
330 330
331 coroapi::cede_to_tick_every (100); 331 coroapi::cede_to_tick ();
332 332
333 for (;;) 333 for (;;)
334 { 334 {
335 object *op = object::create ();
336 archetype *at = get (f.get_str ()); 335 archetype *at = new archetype (f.get_str ());
337 f.get (op->name); 336
338 f.next (); 337 f.next ();
339 338
340#if 0 339#if 0
340 // implementing it here in the server does neither allow multiple inheritence
341 // nor does it cleanly "just override". it would allow use in map files, though,
342 // and other resource files dynamically laoded (as opposed to being preprocessed).
343 // not that any of this is relevant as of yet...
341 if (f.kw == KW_inherit) 344 if (f.kw == KW_inherit)
342 { 345 {
343 if (archetype *at = find (f.get_str ())) 346 if (archetype *at = find (f.get_str ()))
344 *op = at->clone; 347 *op = at->clone;
345 else 348 else
346 LOG (llevError, "archetype '%s' tries to inherit from non-existent archetype '%s'.\n", 349 LOG (llevError, "archetype '%s' tries to inherit from non-existent archetype '%s'.\n",
347 &at->name, f.get_str ()); 350 &at->archname, f.get_str ());
348 351
349 f.next (); 352 f.next ();
350 } 353 }
351#endif 354#endif
352 355
356 loading_arch = at; // hack to tell parse_kv et al. to behave
357 bool parse_ok = at->parse_kv (f);
358 loading_arch = 0;
359
353 if (!op->parse_kv (f)) 360 if (!parse_ok)
354 goto fail; 361 goto fail;
355 362
356 parts.push_back (std::make_pair (at, op)); 363 loading_arch = at; // hack to tell parse_kv et al. to behave
364 at->post_load_check ();
365 loading_arch = 0;
366
367 parts.push_back (at);
357 368
358 if (f.kw != KW_more) 369 if (f.kw != KW_more)
359 break; 370 break;
360 371
361 f.next (); 372 f.next ();
366 goto fail; 377 goto fail;
367 } 378 }
368 } 379 }
369 380
370 { 381 {
382 auto (at, parts.begin ());
383
371 archetype *head = parts.front ().first; 384 archetype *new_head = parts.front ();
385 archetype *old_head = find (new_head->archname);
372 386
373 // check that all archetypes belong to the same object or are heads 387 if (old_head && !old_head->is_head ())
374 for (auto (p, parts.begin ()); p != parts.end (); ++p)
375 { 388 {
376 archetype *at = p->first; 389 LOG (llevError, "%s: unable to overwrite non-head archetype '%s' with head archetype, skipping.\n",
390 &new_head->archname, &old_head->archname);
391 goto fail;
392 }
377 393
378 if (at->head != head && at->head) 394 // check that all archetypes belong to the same old object or are new
395 for (auto (at, parts.begin ()); at != parts.end (); ++at)
396 {
397 archetype *new_part = *at;
398 archetype *old_part = find (new_part->archname);
399
400 if (old_part && old_part->head_ () != old_head)
379 { 401 {
380 LOG (llevError, "%s: unable to overwrite foreign non-head archetype with non-head archetype\n", &at->name); 402 LOG (llevError, "%s: unable to overwrite archetype '%s' with archetype of different object, skipping.\n",
381 goto fail; 403 &new_part->archname, &((archetype *)old_part->head_ ())->archname);
382 }
383
384 if (at->next && at != head)
385 {
386 LOG (llevError, "%s: unable to overwrite foreign head archetype with non-head archetype\n", &at->name);
387 goto fail; 404 goto fail;
388 } 405 }
389 } 406 }
390 407
391 // sever chain of existing head object
392 for (archetype *more, *at = head; at; at = more)
393 {
394 more = at->more;
395
396 at->head = 0;
397 at->more = 0;
398 }
399
400 // replace/update head
401 overwrite (head, parts.front ().second);
402 head->tail_x = 0;
403 head->tail_y = 0;
404
405 // link into list of heads, if not already there
406 if (!head->linked)
407 {
408 head->linked = true;
409 head->next = first_archetype;
410 first_archetype = head;
411 }
412
413 // reassemble new chain 408 // assemble new chain
409 new_head->min_x = new_head->max_x = new_head->x;
410 new_head->min_y = new_head->max_y = new_head->y;
411
414 archetype *prev = head; 412 archetype *less = new_head;
415 for (auto (p, parts.begin () + 1); p != parts.end (); ++p) 413 for (auto (p, parts.begin () + 1); p != parts.end (); ++p)
416 { 414 {
417 archetype *at = p->first; 415 archetype *at = *p;
418 overwrite (at, p->second);
419 416
420 if (at->clone.x > head->tail_x) head->tail_x = at->clone.x; 417 // some flags get inherited formt he head (probably a lot more)
421 if (at->clone.y > head->tail_y) head->tail_y = at->clone.y; 418 // doing it here doesn't feel too cozy, but it allows code
419 // to ignore head checks for these flags, which saves time
420 at->flag [FLAG_ALIVE] = new_head->flag [FLAG_ALIVE];
421 at->flag [FLAG_NO_PICK] = new_head->flag [FLAG_NO_PICK];
422 at->flag [FLAG_MONSTER] = new_head->flag [FLAG_MONSTER];
423 at->flag [FLAG_IS_FLOOR] = new_head->flag [FLAG_IS_FLOOR];
422 424
425 if (at->x < new_head->min_x) new_head->min_x = at->x;
426 if (at->y < new_head->min_y) new_head->min_y = at->y;
427 if (at->x > new_head->max_x) new_head->max_x = at->x;
428 if (at->y > new_head->max_y) new_head->max_y = at->y;
429
423 at->head = head; 430 at->head = new_head;
424 at->clone.head = &head->clone;
425 prev->more = at; 431 less->more = at;
426 prev->clone.more = &at->clone;
427
428 prev = at; 432 less = at;
429 } 433 }
430 434
431 loading_arch = false; 435 postponed_arch.insert (postponed_arch.end (), parts.begin (), parts.end ());
436
432 return head; 437 return new_head;
433 } 438 }
434 439
435fail: 440fail:
436 for (auto (p, parts.begin ()); p != parts.end (); ++p) 441 for (auto (p, parts.begin ()); p != parts.end (); ++p)
437 p->second->destroy (true); 442 (*p)->destroy (true);
438 443
439 loading_arch = false;
440 return 0; 444 return 0;
441} 445}
442 446
443/*
444 * Initialize global archtype pointers:
445 */
446void 447void
447init_archetype_pointers () 448archetype::postpone_arch_ref (arch_ptr &ref, const_utf8_string other_arch)
448{ 449{
449 ring_arch = archetype::find ("ring"); 450 ref = 0;
450 amulet_arch = archetype::find ("amulet"); 451 postponed_arch_ref.push_back (std::pair<arch_ptr *, shstr>(&ref, shstr (other_arch)));
451 staff_arch = archetype::find ("staff"); 452}
452 crown_arch = archetype::find ("crown"); 453
453 empty_archetype = archetype::find ("empty_archetype"); 454void
455archetype::commit_load ()
456{
457 // unlink old archetypes and link in new ones */
458 for (auto (p, postponed_arch.begin ()); p != postponed_arch.end (); ++p)
459 {
460 archetype *at = *p;
461
462 if (archetype *old = find (at->archname))
463 old->unlink ();
464
465 at->link ();
466 }
467
468 postponed_arch.clear ();
469
470 // now resolve arch references
471 for (auto (p, postponed_arch_ref.begin ()); p != postponed_arch_ref.end (); ++p)
472 {
473 arch_ptr *ap = p->first;
474 archetype *at = find (p->second);
475
476 if (!at)
477 LOG (llevError, "unable to resolve postponed arch reference to '%s'", &p->second);
478
479 *ap = at;
480 }
481
482 postponed_arch_ref.clear ();
483
484 empty = find (shstr_empty_archetype);
454} 485}
455 486
456/* 487/*
457 * Creates and returns a new object which is a copy of the given archetype. 488 * Creates and returns a new object which is a copy of the given archetype.
458 * This function returns NULL on failure. 489 * This function returns NULL on failure.
464 { 495 {
465 LOG (llevError, "Couldn't find archetype.\n"); 496 LOG (llevError, "Couldn't find archetype.\n");
466 return 0; 497 return 0;
467 } 498 }
468 499
469 object *op = at->clone.clone (); 500 object *op = at->clone ();
470 op->arch = at; 501 op->arch = at;
471 op->instantiate (); 502 op->instantiate ();
472 503
473 return op; 504 return op;
505}
506
507object *
508archetype::instance ()
509{
510 return arch_to_object (this);
474} 511}
475 512
476/* 513/*
477 * Creates an object. This function is called by get_archetype() 514 * Creates an object. This function is called by get_archetype()
478 * if it fails to find the appropriate archetype. 515 * if it fails to find the appropriate archetype.
480 * an object, and never NULL. 517 * an object, and never NULL.
481 */ 518 */
482object * 519object *
483create_singularity (const char *name) 520create_singularity (const char *name)
484{ 521{
485 object *op; 522 LOG (llevError | logBacktrace, "FATAL: creating singularity for '%s'.\n", name);
523
524 if (!strcmp (name, "bug"))
525 abort ();
526
486 char buf[MAX_BUF]; 527 char buf[MAX_BUF];
528 sprintf (buf, "bug, please report (%s)", name);
487 529
488 sprintf (buf, "%s (%s)", ARCH_SINGULARITY, name); 530 object *op = get_archetype ("bug");
489 op = object::create ();
490 op->name = op->name_pl = buf; 531 op->name = op->name_pl = buf;
491 SET_FLAG (op, FLAG_NO_PICK); 532
492 return op; 533 return op;
493} 534}
494 535
495/* 536/*
496 * Finds which archetype matches the given name, and returns a new 537 * Finds which archetype matches the given name, and returns a new
506 547
507 return arch_to_object (at); 548 return arch_to_object (at);
508} 549}
509 550
510/* 551/*
511 * Finds, using the hashtable, which archetype matches the given name.
512 * returns a pointer to the found archetype, otherwise NULL.
513 */
514archetype *
515archetype::find (const char *name)
516{
517 if (!name)
518 return 0;
519
520 auto (i, ht.find (name));
521
522 if (i == ht.end ())
523 return 0;
524 else
525 return i->second;
526}
527
528archetype *
529archetype::get (const char *name)
530{
531 archetype *at = find (name);
532
533 if (!at)
534 {
535 archetypes.push_back (at = new archetype);
536 at->name = at->clone.name = at->clone.name_pl = name;
537 at->hash_add ();
538 }
539
540 return at;
541}
542
543/*
544 * Adds an archetype to the hashtable.
545 */
546void
547archetype::hash_add ()
548{
549 ht.insert (std::make_pair (name, this));
550}
551
552void
553archetype::hash_del ()
554{
555 ht.erase (name);
556}
557
558/*
559 * Returns the first archetype using the given type. 552 * Returns the first archetype using the given type.
560 * Used in treasure-generation. 553 * Used in treasure-generation.
561 */ 554 */
562archetype * 555archetype *
563type_to_archetype (int type) 556type_to_archetype (int type)
564{ 557{
565 for (archetype *at = first_archetype; at; at = at->more == 0 ? at->next : at->more) 558 for_all_archetypes (at)
566 if (at->clone.type == type) 559 if (at->type == type && at->head_ () != at)
567 return at; 560 return at;
568 561
569 return 0; 562 return 0;
570} 563}
571 564
583 { 576 {
584 LOG (llevError, "Can't clone archetype %d\n", type); 577 LOG (llevError, "Can't clone archetype %d\n", type);
585 return 0; 578 return 0;
586 } 579 }
587 580
588 object *op = at->clone.clone (); 581 object *op = at->clone ();
589 op->instantiate (); 582 op->instantiate ();
590 return op; 583 return op;
591} 584}
592 585
593/* 586/*
594 * member: make instance from class 587 * member: make instance from class
595 */ 588 */
596
597object * 589object *
598object_create_arch (archetype *at) 590object_create_arch (archetype *at)
599{ 591{
600 object *op, *prev = 0, *head = 0; 592 object *op, *prev = 0, *head = 0;
601 593
602 while (at) 594 while (at)
603 { 595 {
604 op = arch_to_object (at); 596 op = arch_to_object (at);
597
605 op->x = at->clone.x; 598 op->x = at->x;
606 op->y = at->clone.y; 599 op->y = at->y;
607 600
608 if (head) 601 if (head)
609 op->head = head, prev->more = op; 602 op->head = head, prev->more = op;
610 603
611 if (!head) 604 if (!head)
612 head = op; 605 head = op;
613 606
614 prev = op; 607 prev = op;
615 at = at->more; 608 at = (archetype *)at->more;
616 } 609 }
617 610
618 return (head); 611 return head;
619} 612}
620 613

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