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/cvs/deliantra/server/common/recipe.C
Revision: 1.10
Committed: Thu Dec 14 00:08:52 2006 UTC (17 years, 5 months ago) by elmex
Content type: text/plain
Branch: MAIN
Changes since 1.9: +20 -12 lines
Log Message:
fixed some callers of find_treasurelist to handle non existing treasurelists
more gracefully ('gracefully' as in 'do not crash').

File Contents

# Content
1 /* Basic stuff for use with the alchemy code. Clearly some of this stuff
2 * could go into server/alchemy, but I left it here just in case it proves
3 * more generally useful.
4 *
5 * Nov 1995 - file created by b.t. thomas@astro.psu.edu
6 */
7
8
9 /* Our definition of 'formula' is any product of an alchemical process.
10 * Ingredients are just comma delimited list of archetype (or object)
11 * names.
12 */
13
14 /* Example 'formula' entry in libdir/formulae:
15 * Object transparency
16 * chance 10
17 * ingred dust of beholdereye,gem
18 * arch potion_generic
19 */
20
21 #include <global.h>
22 #include <object.h>
23 #include <ctype.h>
24
25 static void build_stringlist (const char *str, char ***result_list, size_t * result_size);
26
27 static recipelist *formulalist;
28
29 static recipelist *
30 init_recipelist (void)
31 {
32 recipelist *tl = new recipelist;
33
34 tl->total_chance = 0;
35 tl->number = 0;
36 tl->items = NULL;
37 tl->next = NULL;
38 return tl;
39 }
40
41 static recipe *
42 get_empty_formula (void)
43 {
44 recipe *t = new recipe;
45
46 t->chance = 0;
47 t->index = 0;
48 t->transmute = 0;
49 t->yield = 0;
50 t->diff = 0;
51 t->exp = 0;
52 t->keycode = 0;
53 t->title = NULL;
54 t->arch_names = 0;
55 t->arch_name = NULL;
56 t->skill = NULL;
57 t->cauldron = NULL;
58 t->ingred = NULL;
59 t->next = NULL;
60 return t;
61 }
62
63 /* get_formulalist() - returns pointer to the formula list */
64
65 recipelist *
66 get_formulalist (int i)
67 {
68 recipelist *fl = formulalist;
69 int number = i;
70
71 while (fl && number > 1)
72 {
73 if (!(fl = fl->next))
74 break;
75 number--;
76 }
77 return fl;
78 }
79
80 /* check_recipe() - makes sure we actually have the requested artifact
81 * and archetype. */
82
83 static int
84 check_recipe (const recipe *rp)
85 {
86 size_t i;
87 int result;
88
89 result = 1;
90 for (i = 0; i < rp->arch_names; i++)
91 {
92 if (archetype::find (rp->arch_name[i]) != NULL)
93 {
94 artifact *art = locate_recipe_artifact (rp, i);
95
96 if (!art && strcmp (rp->title, "NONE") != 0)
97 {
98 LOG (llevError, "\nWARNING: Formula %s of %s has no artifact.\n", rp->arch_name[i], &rp->title);
99 result = 0;
100 }
101 }
102 else
103 {
104 LOG (llevError, "\nWARNING: Can't find archetype %s for formula %s\n", rp->arch_name[i], &rp->title);
105 result = 0;
106 }
107 }
108
109 return result;
110 }
111
112
113 /*
114 * init_formulae() - Builds up the lists of formula from the file in
115 * the libdir. -b.t.
116 */
117
118 void
119 init_formulae (void)
120 {
121 static int has_been_done = 0;
122 FILE *fp;
123 char filename[MAX_BUF], buf[MAX_BUF], *cp, *next;
124 recipe *formula = NULL;
125 recipelist *fl = init_recipelist ();
126 linked_char *tmp;
127 int value, comp;
128
129 if (!formulalist)
130 formulalist = fl;
131
132 if (has_been_done)
133 return;
134 else
135 has_been_done = 1;
136
137 sprintf (filename, "%s/formulae", settings.datadir);
138 LOG (llevDebug, "Reading alchemical formulae from %s...", filename);
139 if ((fp = open_and_uncompress (filename, 0, &comp)) == NULL)
140 {
141 LOG (llevError, "Can't open %s.\n", filename);
142 return;
143 }
144
145 while (fgets (buf, MAX_BUF, fp) != NULL)
146 {
147 if (*buf == '#')
148 continue;
149 if ((cp = strchr (buf, '\n')) != NULL)
150 *cp = '\0';
151 cp = buf;
152 while (*cp == ' ') /* Skip blanks */
153 cp++;
154
155 if (!strncmp (cp, "Object", 6))
156 {
157 formula = get_empty_formula ();
158 formula->title = strchr (cp, ' ') + 1;
159 }
160 else if (!strncmp (cp, "keycode", 7))
161 {
162 formula->keycode = strchr (cp, ' ') + 1;
163 }
164 else if (sscanf (cp, "trans %d", &value))
165 {
166 formula->transmute = (uint16) value;
167 }
168 else if (sscanf (cp, "yield %d", &value))
169 {
170 formula->yield = (uint16) value;
171 }
172 else if (sscanf (cp, "chance %d", &value))
173 {
174 formula->chance = (uint16) value;
175 }
176 else if (sscanf (cp, "exp %d", &value))
177 {
178 formula->exp = (uint16) value;
179 }
180 else if (sscanf (cp, "diff %d", &value))
181 {
182 formula->diff = (uint16) value;
183 }
184 else if (!strncmp (cp, "ingred", 6))
185 {
186 int numb_ingred = 1;
187
188 cp = strchr (cp, ' ') + 1;
189 do
190 {
191 if ((next = strchr (cp, ',')) != NULL)
192 {
193 *(next++) = '\0';
194 numb_ingred++;
195 }
196 tmp = new linked_char;
197
198 tmp->name = cp;
199 tmp->next = formula->ingred;
200 formula->ingred = tmp;
201 /* each ingredient's ASCII value is coadded. Later on this
202 * value will be used allow us to search the formula lists
203 * quickly for the right recipe.
204 */
205 formula->index += strtoint (cp);
206 }
207 while ((cp = next) != NULL);
208 /* now find the correct (# of ingred ordered) formulalist */
209 fl = formulalist;
210 while (numb_ingred != 1)
211 {
212 if (!fl->next)
213 fl->next = init_recipelist ();
214 fl = fl->next;
215 numb_ingred--;
216 }
217 fl->total_chance += formula->chance;
218 fl->number++;
219 formula->next = fl->items;
220 fl->items = formula;
221 }
222 else if (!strncmp (cp, "arch", 4))
223 {
224 build_stringlist (strchr (cp, ' ') + 1, &formula->arch_name, &formula->arch_names);
225 check_recipe (formula);
226 }
227 else if (!strncmp (cp, "skill", 5))
228 {
229 formula->skill = strchr (cp, ' ') + 1;
230 }
231 else if (!strncmp (cp, "cauldron", 8))
232 {
233 formula->cauldron = strchr (cp, ' ') + 1;
234 }
235 else
236 LOG (llevError, "Unknown input in file %s: %s\n", filename, buf);
237 }
238 LOG (llevDebug, "done.\n");
239 close_and_delete (fp, comp);
240 /* Lastly, lets check for problems in formula we got */
241 check_formulae ();
242 }
243
244 /* check_formulae()- since we are doing a squential search on the
245 * formulae lists now, we have to be carefull that we dont have 2
246 * formula with the exact same index value. Under the new nbatches
247 * code, it is possible to have multiples of ingredients in a cauldron
248 * which could result in an index formula mismatch. We *don't* check for
249 * that possibility here. -b.t.
250 */
251 void
252 check_formulae (void)
253 {
254 recipelist *fl;
255 recipe *check, *formula;
256 int numb = 1;
257
258 LOG (llevDebug, "Checking formulae lists...");
259
260 for (fl = formulalist; fl != NULL; fl = fl->next)
261 {
262 for (formula = fl->items; formula != NULL; formula = formula->next)
263 for (check = formula->next; check != NULL; check = check->next)
264 if (check->index == formula->index)
265 {
266 LOG (llevError, " ERROR: On %d ingred list: ", numb);
267 LOG (llevError, "Formulae [%s] of %s and [%s] of %s have matching index id (%d)\n",
268 formula->arch_name[0], &formula->title, check->arch_name[0], &check->title, formula->index);
269 }
270 numb++;
271 }
272
273 LOG (llevDebug, "done.\n");
274
275 }
276
277 /* Borrowed (again) from the artifacts code for this */
278
279 void
280 dump_alchemy (void)
281 {
282 recipelist *fl = formulalist;
283 recipe *formula = NULL;
284 linked_char *next;
285 int num_ingred = 1;
286
287 fprintf (logfile, "\n");
288 while (fl)
289 {
290 fprintf (logfile, "\n Formulae with %d ingredient%s %d Formulae with total_chance=%d\n",
291 num_ingred, num_ingred > 1 ? "s." : ".", fl->number, fl->total_chance);
292 for (formula = fl->items; formula != NULL; formula = formula->next)
293 {
294 artifact *art = NULL;
295 char buf[MAX_BUF];
296 size_t i;
297
298 for (i = 0; i < formula->arch_names; i++)
299 {
300 const char *string = formula->arch_name[i];
301
302 if (archetype::find (string) != NULL)
303 {
304 art = locate_recipe_artifact (formula, i);
305 if (!art && strcmp (formula->title, "NONE"))
306 LOG (llevError, "Formula %s has no artifact\n", &formula->title);
307 else
308 {
309 if (strcmp (formula->title, "NONE"))
310 sprintf (buf, "%s of %s", string, &formula->title);
311 else
312 sprintf (buf, "%s", string);
313 fprintf (logfile, "%-30s(%d) bookchance %3d ", buf, formula->index, formula->chance);
314 fprintf (logfile, "skill %s", &formula->skill);
315 fprintf (logfile, "\n");
316 if (formula->ingred != NULL)
317 {
318 int nval = 0, tval = 0;
319
320 fprintf (logfile, "\tIngred: ");
321 for (next = formula->ingred; next != NULL; next = next->next)
322 {
323 if (nval != 0)
324 fprintf (logfile, ",");
325 fprintf (logfile, "%s(%d)", &next->name, (nval = strtoint (next->name)));
326 tval += nval;
327 }
328 fprintf (logfile, "\n");
329 if (tval != formula->index)
330 fprintf (logfile, "WARNING:ingredient list and formula values not equal.\n");
331 }
332 if (formula->skill != NULL)
333 fprintf (logfile, "\tSkill Required: %s", &formula->skill);
334 if (formula->cauldron != NULL)
335 fprintf (logfile, "\tCauldron: %s\n", &formula->cauldron);
336 fprintf (logfile, "\tDifficulty: %d\t Exp: %d\n", formula->diff, formula->exp);
337 }
338 }
339 else
340 LOG (llevError, "Can't find archetype:%s for formula %s\n", string, &formula->title);
341 }
342 }
343 fprintf (logfile, "\n");
344 fl = fl->next;
345 num_ingred++;
346 }
347 }
348
349 /* Find a treasure with a matching name. The 'depth' parameter is
350 * only there to prevent infinite loops in treasure lists (a list
351 * referencing another list pointing back to the first one). */
352 archetype *
353 find_treasure_by_name (const treasure *t, const char *name, int depth)
354 {
355 treasurelist *tl;
356 archetype *at;
357
358 if (depth > 10)
359 return 0;
360
361 while (t)
362 {
363 if (t->name)
364 {
365 tl = find_treasurelist (t->name);
366
367 if (tl)
368 {
369 at = find_treasure_by_name (tl->items, name, depth + 1);
370
371 if (at)
372 return at;
373 }
374 }
375 else
376 {
377 if (!strcasecmp (t->item->clone.name, name))
378 return t->item;
379 }
380
381 if (t->next_yes)
382 {
383 at = find_treasure_by_name (t->next_yes, name, depth);
384 if (at)
385 return at;
386 }
387
388 if (t->next_no)
389 {
390 at = find_treasure_by_name (t->next_no, name, depth);
391 if (at)
392 return at;
393 }
394 t = t->next;
395 }
396 return 0;
397 }
398
399 /* If several archetypes have the same name, the value of the first
400 * one with that name will be returned. This happens for the
401 * mushrooms (mushroom_1, mushroom_2 and mushroom_3). For the
402 * monsters' body parts, there may be several monsters with the same
403 * name. This is not a problem if these monsters have the same level
404 * (e.g. sage & c_sage) or if only one of the monsters generates the
405 * body parts that we are looking for (e.g. big_dragon and
406 * big_dragon_worthless). */
407 long
408 find_ingred_cost (const char *name)
409 {
410 archetype *at;
411 archetype *at2;
412 artifactlist *al;
413 artifact *art;
414 long mult;
415 char *cp;
416 char part1[100];
417 char part2[100];
418
419 /* same as atoi(), but skip number */
420 mult = 0;
421 while (isdigit (*name))
422 {
423 mult = 10 * mult + (*name - '0');
424 name++;
425 }
426 if (mult > 0)
427 name++;
428 else
429 mult = 1;
430 /* first, try to match the name of an archetype */
431 for (at = first_archetype; at != NULL; at = at->next)
432 {
433 if (at->clone.title != NULL)
434 {
435 /* inefficient, but who cares? */
436 sprintf (part1, "%s %s", &at->clone.name, &at->clone.title);
437 if (!strcasecmp (part1, name))
438 return mult * at->clone.value;
439 }
440 if (!strcasecmp (at->clone.name, name))
441 return mult * at->clone.value;
442 }
443 /* second, try to match an artifact ("arch of something") */
444 cp = strstr (name, " of ");
445 if (cp != NULL)
446 {
447 strcpy (part1, name);
448 part1[cp - name] = '\0';
449 strcpy (part2, cp + 4);
450 /* find the first archetype matching the first part of the name */
451 for (at = first_archetype; at != NULL; at = at->next)
452 if (!strcasecmp (at->clone.name, part1) && at->clone.title == NULL)
453 break;
454 if (at != NULL)
455 {
456 /* find the first artifact derived from that archetype (same type) */
457 for (al = first_artifactlist; al != NULL; al = al->next)
458 if (al->type == at->clone.type)
459 {
460 for (art = al->items; art != NULL; art = art->next)
461 if (!strcasecmp (art->item->name, part2))
462 return mult * at->clone.value * art->item->value;
463 }
464 }
465 }
466 /* third, try to match a body part ("arch's something") */
467 cp = strstr (name, "'s ");
468 if (cp != NULL)
469 {
470 strcpy (part1, name);
471 part1[cp - name] = '\0';
472 strcpy (part2, cp + 3);
473 /* examine all archetypes matching the first part of the name */
474 for (at = first_archetype; at != NULL; at = at->next)
475 if (!strcasecmp (at->clone.name, part1) && at->clone.title == NULL)
476 {
477 if (at->clone.randomitems != NULL)
478 {
479 at2 = find_treasure_by_name (at->clone.randomitems->items, part2, 0);
480 if (at2)
481 return mult * at2->clone.value * isqrt (at->clone.level * 2);
482 }
483 }
484 }
485 /* failed to find any matching items -- formula should be checked */
486 return -1;
487 }
488
489 /* code copied from dump_alchemy() and modified by Raphael Quinet */
490 void
491 dump_alchemy_costs (void)
492 {
493 recipelist *fl = formulalist;
494 recipe *formula = NULL;
495 linked_char *next;
496 int num_ingred = 1;
497 int num_errors = 0;
498 long cost;
499 long tcost;
500
501 fprintf (logfile, "\n");
502 while (fl)
503 {
504 fprintf (logfile, "\n Formulae with %d ingredient%s %d Formulae with total_chance=%d\n",
505 num_ingred, num_ingred > 1 ? "s." : ".", fl->number, fl->total_chance);
506 for (formula = fl->items; formula != NULL; formula = formula->next)
507 {
508 artifact *art = NULL;
509 archetype *at = NULL;
510 char buf[MAX_BUF];
511 size_t i;
512
513 for (i = 0; i < formula->arch_names; i++)
514 {
515 const char *string = formula->arch_name[i];
516
517 if ((at = archetype::find (string)) != NULL)
518 {
519 art = locate_recipe_artifact (formula, i);
520 if (!art && strcmp (formula->title, "NONE"))
521 LOG (llevError, "Formula %s has no artifact\n", &formula->title);
522 else
523 {
524 if (!strcmp (formula->title, "NONE"))
525 sprintf (buf, "%s", string);
526 else
527 sprintf (buf, "%s of %s", string, &formula->title);
528 fprintf (logfile, "\n%-40s bookchance %3d skill %s\n", buf, formula->chance, &(formula->skill));
529 if (formula->ingred != NULL)
530 {
531 tcost = 0;
532 for (next = formula->ingred; next != NULL; next = next->next)
533 {
534 cost = find_ingred_cost (next->name);
535 if (cost < 0)
536 num_errors++;
537 fprintf (logfile, "\t%-33s%5ld\n", &next->name, cost);
538 if (cost < 0 || tcost < 0)
539 tcost = -1;
540 else
541 tcost += cost;
542 }
543 if (art != NULL && art->item != NULL)
544 cost = at->clone.value * art->item->value;
545 else
546 cost = at->clone.value;
547 fprintf (logfile, "\t\tBuying result costs: %5ld", cost);
548 if (formula->yield > 1)
549 {
550 fprintf (logfile, " to %ld (max %d items)\n", cost * formula->yield, formula->yield);
551 cost = cost * (formula->yield + 1L) / 2L;
552 }
553 else
554 fprintf (logfile, "\n");
555 fprintf (logfile, "\t\tIngredients cost: %5ld\n\t\tComment: ", tcost);
556 if (tcost < 0)
557 fprintf (logfile, "Could not find some ingredients. Check the formula!\n");
558 else if (tcost > cost)
559 fprintf (logfile, "Ingredients are much too expensive. Useless formula.\n");
560 else if (tcost * 2L > cost)
561 fprintf (logfile, "Ingredients are too expensive.\n");
562 else if (tcost * 10L < cost)
563 fprintf (logfile, "Ingredients are too cheap.\n");
564 else
565 fprintf (logfile, "OK.\n");
566 }
567 }
568 }
569 else
570 LOG (llevError, "Can't find archetype:%s for formula %s\n", string, &formula->title);
571 }
572 }
573 fprintf (logfile, "\n");
574 fl = fl->next;
575 num_ingred++;
576 }
577 if (num_errors > 0)
578 fprintf (logfile, "WARNING: %d objects required by the formulae do not exist in the game.\n", num_errors);
579 }
580
581 const char *
582 ingred_name (const char *name)
583 {
584 const char *cp = name;
585
586 if (atoi (cp))
587 cp = strchr (cp, ' ') + 1;
588 return cp;
589 }
590
591 /* strtoint() - we use this to convert buf into an integer
592 * equal to the coadded sum of the (lowercase) character
593 * ASCII values in buf (times prepended integers).
594 */
595
596 int
597 strtoint (const char *buf)
598 {
599 const char *cp = ingred_name (buf);
600 int val = 0, len = strlen (cp), mult = numb_ingred (buf);
601
602 while (len)
603 {
604 val += tolower (*cp);
605 cp++;
606 len--;
607 }
608 return val * mult;
609 }
610
611 artifact *
612 locate_recipe_artifact (const recipe *rp, size_t idx)
613 {
614 object *item = get_archetype (rp->arch_name[idx]);
615 artifactlist *at = NULL;
616 artifact *art = NULL;
617
618 if (!item)
619 return (artifact *) NULL;
620
621 if ((at = find_artifactlist (item->type)))
622 for (art = at->items; art; art = art->next)
623 if (!strcmp (art->item->name, rp->title))
624 break;
625
626 item->destroy ();
627
628 return art;
629 }
630
631 int
632 numb_ingred (const char *buf)
633 {
634 int numb;
635
636 if ((numb = atoi (buf)))
637 return numb;
638 else
639 return 1;
640 }
641
642 recipelist *
643 get_random_recipelist (void)
644 {
645 recipelist *fl = NULL;
646 int number = 0, roll = 0;
647
648 /* first, determine # of recipelist we have */
649 for (fl = get_formulalist (1); fl; fl = fl->next)
650 number++;
651
652 /* now, randomly choose one */
653 if (number > 0)
654 roll = RANDOM () % number;
655
656 fl = get_formulalist (1);
657 while (roll && fl)
658 {
659 if (fl->next)
660 fl = fl->next;
661 else
662 break;
663 roll--;
664 }
665 if (!fl) /* failed! */
666 LOG (llevError, "get_random_recipelist(): no recipelists found!\n");
667 else if (fl->total_chance == 0)
668 fl = get_random_recipelist ();
669
670 return fl;
671 }
672
673 recipe *
674 get_random_recipe (recipelist * rpl)
675 {
676 recipelist *fl = rpl;
677 recipe *rp = NULL;
678 int r = 0;
679
680 /* looks like we have to choose a random one */
681 if (fl == NULL)
682 if ((fl = get_random_recipelist ()) == NULL)
683 return rp;
684
685 if (fl->total_chance > 0)
686 {
687 r = RANDOM () % fl->total_chance;
688 for (rp = fl->items; rp; rp = rp->next)
689 {
690 r -= rp->chance;
691 if (r < 0)
692 break;
693 }
694 }
695 return rp;
696 }
697
698 void
699 free_all_recipes (void)
700 {
701 recipelist *fl = formulalist, *flnext;
702 recipe *formula = NULL, *next;
703 linked_char *lchar, *charnext;
704
705 LOG (llevDebug, "Freeing all the recipes\n");
706 for (fl = formulalist; fl != NULL; fl = flnext)
707 {
708 flnext = fl->next;
709
710 for (formula = fl->items; formula != NULL; formula = next)
711 {
712 next = formula->next;
713
714 free (formula->arch_name[0]);
715 free (formula->arch_name);
716
717 for (lchar = formula->ingred; lchar; lchar = charnext)
718 {
719 charnext = lchar->next;
720 delete lchar;
721 }
722 delete formula;
723 }
724
725 delete fl;
726 }
727 }
728
729 /**
730 * Split a comma separated string list into words.
731 *
732 * @param str the string to split
733 *
734 * @param result_list pointer to return value for the newly created list; the
735 * caller is responsible for freeing both *result_list and **result_list.
736 *
737 * @param result_size pointer to return value for the size of the newly
738 * created list
739 */
740 static void
741 build_stringlist (const char *str, char ***result_list, size_t * result_size)
742 {
743 char *dup;
744 char *p;
745 size_t size;
746 size_t i;
747
748 dup = strdup_local (str);
749 if (dup == NULL)
750 fatal (OUT_OF_MEMORY);
751
752 size = 0;
753 for (p = strtok (dup, ","); p != NULL; p = strtok (NULL, ","))
754 size++;
755
756 *result_list = (char **) malloc (size * sizeof (*result_list));
757
758 *result_size = size;
759
760 for (i = 0; i < size; i++)
761 {
762 (*result_list)[i] = dup;
763 dup = dup + strlen (dup) + 1;
764 }
765 }