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Comparing deliantra/server/common/arch.C (file contents):
Revision 1.59 by root, Mon May 7 06:01:47 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
363 loading_arch = at; // hack to tell parse_kv et al. to behave
356 op->post_load_check (); 364 at->post_load_check ();
365 loading_arch = 0;
357 366
358 parts.push_back (std::make_pair (at, op)); 367 parts.push_back (at);
359 368
360 if (f.kw != KW_more) 369 if (f.kw != KW_more)
361 break; 370 break;
362 371
363 f.next (); 372 f.next ();
368 goto fail; 377 goto fail;
369 } 378 }
370 } 379 }
371 380
372 { 381 {
382 auto (at, parts.begin ());
383
373 archetype *head = parts.front ().first; 384 archetype *new_head = parts.front ();
385 archetype *old_head = find (new_head->archname);
374 386
375 // check that all archetypes belong to the same object or are heads 387 if (old_head && !old_head->is_head ())
376 for (auto (p, parts.begin ()); p != parts.end (); ++p)
377 { 388 {
378 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 }
379 393
380 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)
381 { 401 {
382 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",
383 goto fail; 403 &new_part->archname, &((archetype *)old_part->head_ ())->archname);
384 }
385
386 if (at->next && at != head)
387 {
388 LOG (llevError, "%s: unable to overwrite foreign head archetype with non-head archetype\n", &at->name);
389 goto fail; 404 goto fail;
390 } 405 }
391 } 406 }
392 407
393 // sever chain of existing head object
394 for (archetype *more, *at = head; at; at = more)
395 {
396 more = at->more;
397
398 at->head = 0;
399 at->more = 0;
400 }
401
402 // replace/update head
403 overwrite (head, parts.front ().second);
404 head->tail_x = 0;
405 head->tail_y = 0;
406
407 // link into list of heads, if not already there
408 if (!head->linked)
409 {
410 head->linked = true;
411 head->next = first_archetype;
412 first_archetype = head;
413 }
414
415 // 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
416 archetype *prev = head; 412 archetype *less = new_head;
417 for (auto (p, parts.begin () + 1); p != parts.end (); ++p) 413 for (auto (p, parts.begin () + 1); p != parts.end (); ++p)
418 { 414 {
419 archetype *at = p->first; 415 archetype *at = *p;
420 overwrite (at, p->second);
421 416
422 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)
423 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];
424 424
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
425 at->head = head; 430 at->head = new_head;
426 at->clone.head = &head->clone;
427 prev->more = at; 431 less->more = at;
428 prev->clone.more = &at->clone;
429
430 prev = at; 432 less = at;
431 } 433 }
432 434
433 loading_arch = false; 435 postponed_arch.insert (postponed_arch.end (), parts.begin (), parts.end ());
436
434 return head; 437 return new_head;
435 } 438 }
436 439
437fail: 440fail:
438 for (auto (p, parts.begin ()); p != parts.end (); ++p) 441 for (auto (p, parts.begin ()); p != parts.end (); ++p)
439 p->second->destroy (true); 442 (*p)->destroy (true);
440 443
441 loading_arch = false;
442 return 0; 444 return 0;
443} 445}
444 446
445/*
446 * Initialize global archtype pointers:
447 */
448void 447void
449init_archetype_pointers () 448archetype::postpone_arch_ref (arch_ptr &ref, const_utf8_string other_arch)
450{ 449{
451 ring_arch = archetype::find ("ring"); 450 ref = 0;
452 amulet_arch = archetype::find ("amulet"); 451 postponed_arch_ref.push_back (std::pair<arch_ptr *, shstr>(&ref, shstr (other_arch)));
453 staff_arch = archetype::find ("staff"); 452}
454 crown_arch = archetype::find ("crown"); 453
455 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);
456} 485}
457 486
458/* 487/*
459 * 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.
460 * This function returns NULL on failure. 489 * This function returns NULL on failure.
466 { 495 {
467 LOG (llevError, "Couldn't find archetype.\n"); 496 LOG (llevError, "Couldn't find archetype.\n");
468 return 0; 497 return 0;
469 } 498 }
470 499
471 object *op = at->clone.clone (); 500 object *op = at->clone ();
472 op->arch = at; 501 op->arch = at;
473 op->instantiate (); 502 op->instantiate ();
474 503
475 return op; 504 return op;
505}
506
507object *
508archetype::instance ()
509{
510 return arch_to_object (this);
476} 511}
477 512
478/* 513/*
479 * Creates an object. This function is called by get_archetype() 514 * Creates an object. This function is called by get_archetype()
480 * if it fails to find the appropriate archetype. 515 * if it fails to find the appropriate archetype.
482 * an object, and never NULL. 517 * an object, and never NULL.
483 */ 518 */
484object * 519object *
485create_singularity (const char *name) 520create_singularity (const char *name)
486{ 521{
487 object *op; 522 LOG (llevError | logBacktrace, "FATAL: creating singularity for '%s'.\n", name);
523
524 if (!strcmp (name, "bug"))
525 abort ();
526
488 char buf[MAX_BUF]; 527 char buf[MAX_BUF];
528 sprintf (buf, "bug, please report (%s)", name);
489 529
490 sprintf (buf, "%s (%s)", ARCH_SINGULARITY, name); 530 object *op = get_archetype ("bug");
491 op = object::create ();
492 op->name = op->name_pl = buf; 531 op->name = op->name_pl = buf;
493 SET_FLAG (op, FLAG_NO_PICK); 532
494 return op; 533 return op;
495} 534}
496 535
497/* 536/*
498 * Finds which archetype matches the given name, and returns a new 537 * Finds which archetype matches the given name, and returns a new
508 547
509 return arch_to_object (at); 548 return arch_to_object (at);
510} 549}
511 550
512/* 551/*
513 * Finds, using the hashtable, which archetype matches the given name.
514 * returns a pointer to the found archetype, otherwise NULL.
515 */
516archetype *
517archetype::find (const char *name)
518{
519 if (!name)
520 return 0;
521
522 auto (i, ht.find (name));
523
524 if (i == ht.end ())
525 return 0;
526 else
527 return i->second;
528}
529
530archetype *
531archetype::get (const char *name)
532{
533 if (!name)
534 {
535 LOG (llevError, "null archetype requested\n");
536 name = "(null)";
537 }
538
539 archetype *at = find (name);
540
541 if (!at)
542 {
543 archetypes.push_back (at = new archetype);
544 at->name = at->clone.name = at->clone.name_pl = name;
545 at->hash_add ();
546 }
547
548 return at;
549}
550
551/*
552 * Adds an archetype to the hashtable.
553 */
554void
555archetype::hash_add ()
556{
557 ht.insert (std::make_pair (name, this));
558}
559
560void
561archetype::hash_del ()
562{
563 ht.erase (name);
564}
565
566/*
567 * Returns the first archetype using the given type. 552 * Returns the first archetype using the given type.
568 * Used in treasure-generation. 553 * Used in treasure-generation.
569 */ 554 */
570archetype * 555archetype *
571type_to_archetype (int type) 556type_to_archetype (int type)
572{ 557{
573 for (archetype *at = first_archetype; at; at = at->more == 0 ? at->next : at->more) 558 for_all_archetypes (at)
574 if (at->clone.type == type) 559 if (at->type == type && at->head_ () != at)
575 return at; 560 return at;
576 561
577 return 0; 562 return 0;
578} 563}
579 564
591 { 576 {
592 LOG (llevError, "Can't clone archetype %d\n", type); 577 LOG (llevError, "Can't clone archetype %d\n", type);
593 return 0; 578 return 0;
594 } 579 }
595 580
596 object *op = at->clone.clone (); 581 object *op = at->clone ();
597 op->instantiate (); 582 op->instantiate ();
598 return op; 583 return op;
599} 584}
600 585
601/* 586/*
602 * member: make instance from class 587 * member: make instance from class
603 */ 588 */
604
605object * 589object *
606object_create_arch (archetype *at) 590object_create_arch (archetype *at)
607{ 591{
608 object *op, *prev = 0, *head = 0; 592 object *op, *prev = 0, *head = 0;
609 593
610 while (at) 594 while (at)
611 { 595 {
612 op = arch_to_object (at); 596 op = arch_to_object (at);
597
613 op->x = at->clone.x; 598 op->x = at->x;
614 op->y = at->clone.y; 599 op->y = at->y;
615 600
616 if (head) 601 if (head)
617 op->head = head, prev->more = op; 602 op->head = head, prev->more = op;
618 603
619 if (!head) 604 if (!head)
620 head = op; 605 head = op;
621 606
622 prev = op; 607 prev = op;
623 at = at->more; 608 at = (archetype *)at->more;
624 } 609 }
625 610
626 return (head); 611 return head;
627} 612}
628 613

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