server/common/recipe.C

/* Basic stuff for use with the alchemy code. Clearly some of this stuff
 * could go into server/alchemy, but I left it here just in case it proves
 * more generally useful. 
 *
 * Nov 1995 - file created by b.t. thomas@astro.psu.edu 
 */


/* Our definition of 'formula' is any product of an alchemical process.
 * Ingredients are just comma delimited list of archetype (or object) 
 * names. 
 */

/* Example 'formula' entry in libdir/formulae:
 *      Object transparency
 *      chance 10
 *      ingred dust of beholdereye,gem
 *      arch potion_generic
 */

#include <global.h>
#include <object.h>
#include <ctype.h>

static void build_stringlist (const char *str, char ***result_list, size_t * result_size);

static recipelist *formulalist;

static recipelist *
init_recipelist (void)
{
  recipelist *tl = new recipelist;

  tl->total_chance = 0;
  tl->number = 0;
  tl->items = NULL;
  tl->next = NULL;
  return tl;
}

static recipe *
get_empty_formula (void)
{
  recipe *t = new recipe;

  t->chance = 0;
  t->index = 0;
  t->transmute = 0;
  t->yield = 0;
  t->diff = 0;
  t->exp = 0;
  t->keycode = 0;
  t->title = NULL;
  t->arch_names = 0;
  t->arch_name = NULL;
  t->skill = NULL;
  t->cauldron = NULL;
  t->ingred = NULL;
  t->next = NULL;
  return t;
}

/* get_formulalist() - returns pointer to the formula list */

recipelist *
get_formulalist (int i)
{
  recipelist *fl = formulalist;
  int number = i;

  while (fl && number > 1)
    {
      if (!(fl = fl->next))
        break;
      number--;
    }
  return fl;
}

/* check_recipe() - makes sure we actually have the requested artifact 
 * and archetype. */

static int
check_recipe (const recipe *rp)
{
  size_t i;
  int result;

  result = 1;
  for (i = 0; i < rp->arch_names; i++)
    {
      if (archetype::find (rp->arch_name[i]) != NULL)
        {
          artifact *art = locate_recipe_artifact (rp, i);

          if (!art && strcmp (rp->title, "NONE") != 0)
            {
              LOG (llevError, "\nWARNING: Formula %s of %s has no artifact.\n", rp->arch_name[i], &rp->title);
              result = 0;
            }
        }
      else
        {
          LOG (llevError, "\nWARNING: Can't find archetype %s for formula %s\n", rp->arch_name[i], &rp->title);
          result = 0;
        }
    }

  return result;
}


/*
 * init_formulae() - Builds up the lists of formula from the file in 
 * the libdir. -b.t. 
 */

void
init_formulae (void)
{
  static int has_been_done = 0;
  FILE *fp;
  char filename[MAX_BUF], buf[MAX_BUF], *cp, *next;
  recipe *formula = NULL;
  recipelist *fl = init_recipelist ();
  linked_char *tmp;
  int value, comp;

  if (!formulalist)
    formulalist = fl;

  if (has_been_done)
    return;
  else
    has_been_done = 1;

  sprintf (filename, "%s/formulae", settings.datadir);
  LOG (llevDebug, "Reading alchemical formulae from %s...", filename);
  if ((fp = open_and_uncompress (filename, 0, &comp)) == NULL)
    {
      LOG (llevError, "Can't open %s.\n", filename);
      return;
    }

  while (fgets (buf, MAX_BUF, fp) != NULL)
    {
      if (*buf == '#')
        continue;
      if ((cp = strchr (buf, '\n')) != NULL)
        *cp = '\0';
      cp = buf;
      while (*cp == ' ')        /* Skip blanks */
        cp++;

      if (!strncmp (cp, "Object", 6))
        {
          formula = get_empty_formula ();
          formula->title = strchr (cp, ' ') + 1;
        }
      else if (!strncmp (cp, "keycode", 7))
        {
          formula->keycode = strchr (cp, ' ') + 1;
        }
      else if (sscanf (cp, "trans %d", &value))
        {
          formula->transmute = (uint16) value;
        }
      else if (sscanf (cp, "yield %d", &value))
        {
          formula->yield = (uint16) value;
        }
      else if (sscanf (cp, "chance %d", &value))
        {
          formula->chance = (uint16) value;
        }
      else if (sscanf (cp, "exp %d", &value))
        {
          formula->exp = (uint16) value;
        }
      else if (sscanf (cp, "diff %d", &value))
        {
          formula->diff = (uint16) value;
        }
      else if (!strncmp (cp, "ingred", 6))
        {
          int numb_ingred = 1;

          cp = strchr (cp, ' ') + 1;
          do
            {
              if ((next = strchr (cp, ',')) != NULL)
                {
                  *(next++) = '\0';
                  numb_ingred++;
                }
              tmp = new linked_char;

              tmp->name = cp;
              tmp->next = formula->ingred;
              formula->ingred = tmp;
              /* each ingredient's ASCII value is coadded. Later on this 
               * value will be used allow us to search the formula lists 
               * quickly for the right recipe. 
               */
              formula->index += strtoint (cp);
            }
          while ((cp = next) != NULL);
          /* now find the correct (# of ingred ordered) formulalist */
          fl = formulalist;
          while (numb_ingred != 1)
            {
              if (!fl->next)
                fl->next = init_recipelist ();
              fl = fl->next;
              numb_ingred--;
            }
          fl->total_chance += formula->chance;
          fl->number++;
          formula->next = fl->items;
          fl->items = formula;
        }
      else if (!strncmp (cp, "arch", 4))
        {
          build_stringlist (strchr (cp, ' ') + 1, &formula->arch_name, &formula->arch_names);
          check_recipe (formula);
        }
      else if (!strncmp (cp, "skill", 5))
        {
          formula->skill = strchr (cp, ' ') + 1;
        }
      else if (!strncmp (cp, "cauldron", 8))
        {
          formula->cauldron = strchr (cp, ' ') + 1;
        }
      else
        LOG (llevError, "Unknown input in file %s: %s\n", filename, buf);
    }
  LOG (llevDebug, "done.\n");
  close_and_delete (fp, comp);
  /* Lastly, lets check for problems in formula we got */
  check_formulae ();
}

/* check_formulae()- since we are doing a squential search on the
 * formulae lists now, we have to be carefull that we dont have 2
 * formula with the exact same index value. Under the new nbatches
 * code, it is possible to have multiples of ingredients in a cauldron
 * which could result in an index formula mismatch. We *don't* check for
 * that possibility here. -b.t.
 */
void
check_formulae (void)
{
  recipelist *fl;
  recipe *check, *formula;
  int numb = 1;

  LOG (llevDebug, "Checking formulae lists...");

  for (fl = formulalist; fl != NULL; fl = fl->next)
    {
      for (formula = fl->items; formula != NULL; formula = formula->next)
        for (check = formula->next; check != NULL; check = check->next)
          if (check->index == formula->index)
            {
              LOG (llevError, " ERROR: On %d ingred list: ", numb);
              LOG (llevError, "Formulae [%s] of %s and [%s] of %s have matching index id (%d)\n",
                   formula->arch_name[0], &formula->title, check->arch_name[0], &check->title, formula->index);
            }
      numb++;
    }

  LOG (llevDebug, "done.\n");

}

/* Borrowed (again) from the artifacts code for this  */

void
dump_alchemy (void)
{
  recipelist *fl = formulalist;
  recipe *formula = NULL;
  linked_char *next;
  int num_ingred = 1;

  fprintf (logfile, "\n");
  while (fl)
    {
      fprintf (logfile, "\n Formulae with %d ingredient%s  %d Formulae with total_chance=%d\n",
               num_ingred, num_ingred > 1 ? "s." : ".", fl->number, fl->total_chance);
      for (formula = fl->items; formula != NULL; formula = formula->next)
        {
          artifact *art = NULL;
          char buf[MAX_BUF];
          size_t i;

          for (i = 0; i < formula->arch_names; i++)
            {
              const char *string = formula->arch_name[i];

              if (archetype::find (string) != NULL)
                {
                  art = locate_recipe_artifact (formula, i);
                  if (!art && strcmp (formula->title, "NONE"))
                    LOG (llevError, "Formula %s has no artifact\n", &formula->title);
                  else
                    {
                      if (strcmp (formula->title, "NONE"))
                        sprintf (buf, "%s of %s", string, &formula->title);
                      else
                        sprintf (buf, "%s", string);
                      fprintf (logfile, "%-30s(%d) bookchance %3d  ", buf, formula->index, formula->chance);
                      fprintf (logfile, "skill %s", &formula->skill);
                      fprintf (logfile, "\n");
                      if (formula->ingred != NULL)
                        {
                          int nval = 0, tval = 0;

                          fprintf (logfile, "\tIngred: ");
                          for (next = formula->ingred; next != NULL; next = next->next)
                            {
                              if (nval != 0)
                                fprintf (logfile, ",");
                              fprintf (logfile, "%s(%d)", &next->name, (nval = strtoint (next->name)));
                              tval += nval;
                            }
                          fprintf (logfile, "\n");
                          if (tval != formula->index)
                            fprintf (logfile, "WARNING:ingredient list and formula values not equal.\n");
                        }
                      if (formula->skill != NULL)
                        fprintf (logfile, "\tSkill Required: %s", &formula->skill);
                      if (formula->cauldron != NULL)
                        fprintf (logfile, "\tCauldron: %s\n", &formula->cauldron);
                      fprintf (logfile, "\tDifficulty: %d\t Exp: %d\n", formula->diff, formula->exp);
                    }
                }
              else
                LOG (llevError, "Can't find archetype:%s for formula %s\n", string, &formula->title);
            }
        }
      fprintf (logfile, "\n");
      fl = fl->next;
      num_ingred++;
    }
}

/* Find a treasure with a matching name.  The 'depth' parameter is
 * only there to prevent infinite loops in treasure lists (a list
 * referencing another list pointing back to the first one). */
archetype *
find_treasure_by_name (const treasure *t, const char *name, int depth)
{
  treasurelist *tl;
  archetype *at;

  if (depth > 10)
    return 0;

  while (t)
    {
      if (t->name)
        {
          tl = find_treasurelist (t->name);

          if (tl)
            {
              at = find_treasure_by_name (tl->items, name, depth + 1);

              if (at)
                return at;
            }
        }
      else
        {
          if (!strcasecmp (t->item->clone.name, name))
            return t->item;
        }

      if (t->next_yes)
        {
          at = find_treasure_by_name (t->next_yes, name, depth);
          if (at)
            return at;
        }

      if (t->next_no)
        {
          at = find_treasure_by_name (t->next_no, name, depth);
          if (at)
            return at;
        }
      t = t->next;
    }
  return 0;
}

/* If several archetypes have the same name, the value of the first
 * one with that name will be returned.  This happens for the
 * mushrooms (mushroom_1, mushroom_2 and mushroom_3).  For the
 * monsters' body parts, there may be several monsters with the same
 * name.  This is not a problem if these monsters have the same level
 * (e.g. sage & c_sage) or if only one of the monsters generates the
 * body parts that we are looking for (e.g. big_dragon and
 * big_dragon_worthless). */
long
find_ingred_cost (const char *name)
{
  archetype *at;
  archetype *at2;
  artifactlist *al;
  artifact *art;
  long mult;
  char *cp;
  char part1[100];
  char part2[100];

  /* same as atoi(), but skip number */
  mult = 0;
  while (isdigit (*name))
    {
      mult = 10 * mult + (*name - '0');
      name++;
    }
  if (mult > 0)
    name++;
  else
    mult = 1;
  /* first, try to match the name of an archetype */
  for (at = first_archetype; at != NULL; at = at->next)
    {
      if (at->clone.title != NULL)
        {
          /* inefficient, but who cares? */
          sprintf (part1, "%s %s", &at->clone.name, &at->clone.title);
          if (!strcasecmp (part1, name))
            return mult * at->clone.value;
        }
      if (!strcasecmp (at->clone.name, name))
        return mult * at->clone.value;
    }
  /* second, try to match an artifact ("arch of something") */
  cp = strstr (name, " of ");
  if (cp != NULL)
    {
      strcpy (part1, name);
      part1[cp - name] = '\0';
      strcpy (part2, cp + 4);
      /* find the first archetype matching the first part of the name */
      for (at = first_archetype; at != NULL; at = at->next)
        if (!strcasecmp (at->clone.name, part1) && at->clone.title == NULL)
          break;
      if (at != NULL)
        {
          /* find the first artifact derived from that archetype (same type) */
          for (al = first_artifactlist; al != NULL; al = al->next)
            if (al->type == at->clone.type)
              {
                for (art = al->items; art != NULL; art = art->next)
                  if (!strcasecmp (art->item->name, part2))
                    return mult * at->clone.value * art->item->value;
              }
        }
    }
  /* third, try to match a body part ("arch's something") */
  cp = strstr (name, "'s ");
  if (cp != NULL)
    {
      strcpy (part1, name);
      part1[cp - name] = '\0';
      strcpy (part2, cp + 3);
      /* examine all archetypes matching the first part of the name */
      for (at = first_archetype; at != NULL; at = at->next)
        if (!strcasecmp (at->clone.name, part1) && at->clone.title == NULL)
          {
            if (at->clone.randomitems != NULL)
              {
                at2 = find_treasure_by_name (at->clone.randomitems->items, part2, 0);
                if (at2)
                  return mult * at2->clone.value * isqrt (at->clone.level * 2);
              }
          }
    }
  /* failed to find any matching items -- formula should be checked */
  return -1;
}

/* code copied from dump_alchemy() and modified by Raphael Quinet */
void
dump_alchemy_costs (void)
{
  recipelist *fl = formulalist;
  recipe *formula = NULL;
  linked_char *next;
  int num_ingred = 1;
  int num_errors = 0;
  long cost;
  long tcost;

  fprintf (logfile, "\n");
  while (fl)
    {
      fprintf (logfile, "\n Formulae with %d ingredient%s  %d Formulae with total_chance=%d\n",
               num_ingred, num_ingred > 1 ? "s." : ".", fl->number, fl->total_chance);
      for (formula = fl->items; formula != NULL; formula = formula->next)
        {
          artifact *art = NULL;
          archetype *at = NULL;
          char buf[MAX_BUF];
          size_t i;

          for (i = 0; i < formula->arch_names; i++)
            {
              const char *string = formula->arch_name[i];

              if ((at = archetype::find (string)) != NULL)
                {
                  art = locate_recipe_artifact (formula, i);
                  if (!art && strcmp (formula->title, "NONE"))
                    LOG (llevError, "Formula %s has no artifact\n", &formula->title);
                  else
                    {
                      if (!strcmp (formula->title, "NONE"))
                        sprintf (buf, "%s", string);
                      else
                        sprintf (buf, "%s of %s", string, &formula->title);
                      fprintf (logfile, "\n%-40s bookchance %3d  skill %s\n", buf, formula->chance, &(formula->skill));
                      if (formula->ingred != NULL)
                        {
                          tcost = 0;
                          for (next = formula->ingred; next != NULL; next = next->next)
                            {
                              cost = find_ingred_cost (next->name);
                              if (cost < 0)
                                num_errors++;
                              fprintf (logfile, "\t%-33s%5ld\n", &next->name, cost);
                              if (cost < 0 || tcost < 0)
                                tcost = -1;
                              else
                                tcost += cost;
                            }
                          if (art != NULL && art->item != NULL)
                            cost = at->clone.value * art->item->value;
                          else
                            cost = at->clone.value;
                          fprintf (logfile, "\t\tBuying result costs: %5ld", cost);
                          if (formula->yield > 1)
                            {
                              fprintf (logfile, " to %ld (max %d items)\n", cost * formula->yield, formula->yield);
                              cost = cost * (formula->yield + 1L) / 2L;
                            }
                          else
                            fprintf (logfile, "\n");
                          fprintf (logfile, "\t\tIngredients cost:    %5ld\n\t\tComment: ", tcost);
                          if (tcost < 0)
                            fprintf (logfile, "Could not find some ingredients.  Check the formula!\n");
                          else if (tcost > cost)
                            fprintf (logfile, "Ingredients are much too expensive.  Useless formula.\n");
                          else if (tcost * 2L > cost)
                            fprintf (logfile, "Ingredients are too expensive.\n");
                          else if (tcost * 10L < cost)
                            fprintf (logfile, "Ingredients are too cheap.\n");
                          else
                            fprintf (logfile, "OK.\n");
                        }
                    }
                }
              else
                LOG (llevError, "Can't find archetype:%s for formula %s\n", string, &formula->title);
            }
        }
      fprintf (logfile, "\n");
      fl = fl->next;
      num_ingred++;
    }
  if (num_errors > 0)
    fprintf (logfile, "WARNING: %d objects required by the formulae do not exist in the game.\n", num_errors);
}

const char *
ingred_name (const char *name)
{
  const char *cp = name;

  if (atoi (cp))
    cp = strchr (cp, ' ') + 1;
  return cp;
}

/* strtoint() - we use this to convert buf into an integer
 * equal to the coadded sum of the (lowercase) character 
 * ASCII values in buf (times prepended integers).
 */

int
strtoint (const char *buf)
{
  const char *cp = ingred_name (buf);
  int val = 0, len = strlen (cp), mult = numb_ingred (buf);

  while (len)
    {
      val += tolower (*cp);
      cp++;
      len--;
    }
  return val * mult;
}

artifact *
locate_recipe_artifact (const recipe *rp, size_t idx)
{
  object *item = get_archetype (rp->arch_name[idx]);
  artifactlist *at = NULL;
  artifact *art = NULL;

  if (!item)
    return (artifact *) NULL;

  if ((at = find_artifactlist (item->type)))
    for (art = at->items; art; art = art->next)
      if (!strcmp (art->item->name, rp->title))
        break;

  item->destroy ();

  return art;
}

int
numb_ingred (const char *buf)
{
  int numb;

  if ((numb = atoi (buf)))
    return numb;
  else
    return 1;
}

recipelist *
get_random_recipelist (void)
{
  recipelist *fl = NULL;
  int number = 0, roll = 0;

  /* first, determine # of recipelist we have */
  for (fl = get_formulalist (1); fl; fl = fl->next)
    number++;

  /* now, randomly choose one */
  if (number > 0)
    roll = RANDOM () % number;

  fl = get_formulalist (1);
  while (roll && fl)
    {
      if (fl->next)
        fl = fl->next;
      else
        break;
      roll--;
    }
  if (!fl)                      /* failed! */
    LOG (llevError, "get_random_recipelist(): no recipelists found!\n");
  else if (fl->total_chance == 0)
    fl = get_random_recipelist ();

  return fl;
}

recipe *
get_random_recipe (recipelist * rpl)
{
  recipelist *fl = rpl;
  recipe *rp = NULL;
  int r = 0;

  /* looks like we have to choose a random one */
  if (fl == NULL)
    if ((fl = get_random_recipelist ()) == NULL)
      return rp;

  if (fl->total_chance > 0)
    {
      r = RANDOM () % fl->total_chance;
      for (rp = fl->items; rp; rp = rp->next)
        {
          r -= rp->chance;
          if (r < 0)
            break;
        }
    }
  return rp;
}

void
free_all_recipes (void)
{
  recipelist *fl = formulalist, *flnext;
  recipe *formula = NULL, *next;
  linked_char *lchar, *charnext;

  LOG (llevDebug, "Freeing all the recipes\n");
  for (fl = formulalist; fl != NULL; fl = flnext)
    {
      flnext = fl->next;

      for (formula = fl->items; formula != NULL; formula = next)
        {
          next = formula->next;

          free (formula->arch_name[0]);
          free (formula->arch_name);

          for (lchar = formula->ingred; lchar; lchar = charnext)
            {
              charnext = lchar->next;
              delete lchar;
            }
          delete formula;
        }

      delete fl;
    }
}

/**
 * Split a comma separated string list into words.
 *
 * @param str the string to split
 *
 * @param result_list pointer to return value for the newly created list; the
 * caller is responsible for freeing both *result_list and **result_list.
 *
 * @param result_size pointer to return value for the size of the newly
 * created list
 */
static void
build_stringlist (const char *str, char ***result_list, size_t * result_size)
{
  char *dup;
  char *p;
  size_t size;
  size_t i;

  dup = strdup_local (str);
  if (dup == NULL)
    fatal (OUT_OF_MEMORY);

  size = 0;
  for (p = strtok (dup, ","); p != NULL; p = strtok (NULL, ","))
    size++;

  *result_list = (char **) malloc (size * sizeof (*result_list));

  *result_size = size;

  for (i = 0; i < size; i++)
    {
      (*result_list)[i] = dup;
      dup = dup + strlen (dup) + 1;
    }
}
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').
#	User	Rev	Content
1	elmex	1.1	/* 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	root	1.5	static void build_stringlist (const char str, char *result_list, size_t result_size);
26	elmex	1.1
27			static recipelist *formulalist;
28
29	root	1.5	static recipelist *
30			init_recipelist (void)
31			{
32	root	1.3	recipelist *tl = new recipelist;
33
34	root	1.5	tl->total_chance = 0;
35			tl->number = 0;
36			tl->items = NULL;
37			tl->next = NULL;
38	elmex	1.1	return tl;
39			}
40
41	root	1.5	static recipe *
42			get_empty_formula (void)
43			{
44	root	1.3	recipe *t = new recipe;
45
46	elmex	1.1	t->chance = 0;
47			t->index = 0;
48			t->transmute = 0;
49	root	1.5	t->yield = 0;
50			t->diff = 0;
51			t->exp = 0;
52	elmex	1.1	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	root	1.5	t->next = NULL;
60	elmex	1.1	return t;
61			}
62	root	1.5
63	elmex	1.1	/* get_formulalist() - returns pointer to the formula list */
64
65	root	1.5	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	elmex	1.1	return fl;
78			}
79
80			/* check_recipe() - makes sure we actually have the requested artifact
81			* and archetype. */
82
83	root	1.5	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	root	1.6	if (archetype::find (rp->arch_name[i]) != NULL)
93	root	1.5	{
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	elmex	1.1	}
101	root	1.5	}
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	elmex	1.1	}
107			}
108	root	1.5
109			return result;
110	elmex	1.1	}
111
112
113			/*
114			* init_formulae() - Builds up the lists of formula from the file in
115			* the libdir. -b.t.
116			*/
117	root	1.5
118			void
119			init_formulae (void)
120			{
121			static int has_been_done = 0;
122	elmex	1.1	FILE *fp;
123			char filename[MAX_BUF], buf[MAX_BUF], cp, next;
124	root	1.5	recipe *formula = NULL;
125			recipelist *fl = init_recipelist ();
126	elmex	1.1	linked_char *tmp;
127			int value, comp;
128
129	root	1.5	if (!formulalist)
130			formulalist = fl;
131
132			if (has_been_done)
133	elmex	1.1	return;
134	root	1.5	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	elmex	1.1	/* Lastly, lets check for problems in formula we got */
241	root	1.5	check_formulae ();
242	elmex	1.1	}
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	root	1.5	void
252			check_formulae (void)
253			{
254	elmex	1.1	recipelist *fl;
255			recipe check, formula;
256			int numb = 1;
257
258	root	1.5	LOG (llevDebug, "Checking formulae lists...");
259	elmex	1.1
260	root	1.5	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	elmex	1.1
273	root	1.5	LOG (llevDebug, "done.\n");
274	elmex	1.1
275			}
276
277			/* Borrowed (again) from the artifacts code for this */
278
279	root	1.5	void
280			dump_alchemy (void)
281			{
282			recipelist *fl = formulalist;
283			recipe *formula = NULL;
284	elmex	1.1	linked_char *next;
285	root	1.5	int num_ingred = 1;
286	elmex	1.1
287	root	1.5	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	root	1.6	if (archetype::find (string) != NULL)
303	root	1.5	{
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	root	1.2	}
339	root	1.5	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	elmex	1.1	}
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	root	1.5	archetype *
353			find_treasure_by_name (const treasure t, const char name, int depth)
354	elmex	1.1	{
355			treasurelist *tl;
356	root	1.5	archetype *at;
357	elmex	1.1
358			if (depth > 10)
359	elmex	1.10	return 0;
360
361			while (t)
362	elmex	1.1	{
363	elmex	1.10	if (t->name)
364	root	1.2	{
365			tl = find_treasurelist (t->name);
366	elmex	1.10
367			if (tl)
368			{
369			at = find_treasure_by_name (tl->items, name, depth + 1);
370
371			if (at)
372			return at;
373			}
374	root	1.2	}
375	elmex	1.1	else
376	root	1.2	{
377	root	1.5	if (!strcasecmp (t->item->clone.name, name))
378	root	1.2	return t->item;
379			}
380	elmex	1.10
381			if (t->next_yes)
382	root	1.2	{
383			at = find_treasure_by_name (t->next_yes, name, depth);
384	elmex	1.10	if (at)
385	root	1.2	return at;
386			}
387	elmex	1.10
388			if (t->next_no)
389	root	1.2	{
390			at = find_treasure_by_name (t->next_no, name, depth);
391	elmex	1.10	if (at)
392	root	1.2	return at;
393			}
394	elmex	1.1	t = t->next;
395			}
396	elmex	1.10	return 0;
397	elmex	1.1	}
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	root	1.5	long
408			find_ingred_cost (const char *name)
409	elmex	1.1	{
410	root	1.5	archetype *at;
411			archetype *at2;
412	elmex	1.1	artifactlist *al;
413	root	1.5	artifact *art;
414			long mult;
415			char *cp;
416			char part1[100];
417			char part2[100];
418	elmex	1.1
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	root	1.5	for (at = first_archetype; at != NULL; at = at->next)
432	elmex	1.1	{
433			if (at->clone.title != NULL)
434	root	1.2	{
435			/* inefficient, but who cares? */
436	root	1.3	sprintf (part1, "%s %s", &at->clone.name, &at->clone.title);
437	root	1.5	if (!strcasecmp (part1, name))
438	root	1.2	return mult * at->clone.value;
439			}
440	root	1.5	if (!strcasecmp (at->clone.name, name))
441	root	1.2	return mult * at->clone.value;
442	elmex	1.1	}
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	root	1.5	for (at = first_archetype; at != NULL; at = at->next)
452			if (!strcasecmp (at->clone.name, part1) && at->clone.title == NULL)
453	root	1.2	break;
454	elmex	1.1	if (at != NULL)
455	root	1.2	{
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	root	1.5	if (!strcasecmp (art->item->name, part2))
462	root	1.2	return mult * at->clone.value * art->item->value;
463			}
464			}
465	elmex	1.1	}
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	root	1.5	for (at = first_archetype; at != NULL; at = at->next)
475			if (!strcasecmp (at->clone.name, part1) && at->clone.title == NULL)
476	root	1.2	{
477			if (at->clone.randomitems != NULL)
478			{
479	root	1.5	at2 = find_treasure_by_name (at->clone.randomitems->items, part2, 0);
480	elmex	1.10	if (at2)
481	root	1.2	return mult * at2->clone.value * isqrt (at->clone.level * 2);
482			}
483			}
484	elmex	1.1	}
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	root	1.5	void
491			dump_alchemy_costs (void)
492	elmex	1.1	{
493	root	1.5	recipelist *fl = formulalist;
494			recipe *formula = NULL;
495	elmex	1.1	linked_char *next;
496	root	1.5	int num_ingred = 1;
497			int num_errors = 0;
498	elmex	1.1	long cost;
499			long tcost;
500
501			fprintf (logfile, "\n");
502	root	1.5	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	root	1.2	{
515	root	1.5	const char *string = formula->arch_name[i];
516
517	root	1.6	if ((at = archetype::find (string)) != NULL)
518	root	1.2	{
519	root	1.5	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	root	1.2	else
523			{
524	root	1.5	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	root	1.2	}
568			}
569	root	1.5	else
570			LOG (llevError, "Can't find archetype:%s for formula %s\n", string, &formula->title);
571	root	1.2	}
572			}
573	root	1.5	fprintf (logfile, "\n");
574			fl = fl->next;
575			num_ingred++;
576			}
577	elmex	1.1	if (num_errors > 0)
578	root	1.5	fprintf (logfile, "WARNING: %d objects required by the formulae do not exist in the game.\n", num_errors);
579	elmex	1.1	}
580
581	root	1.5	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	elmex	1.1	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	root	1.5	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	elmex	1.1
602	root	1.5	while (len)
603			{
604			val += tolower (*cp);
605			cp++;
606			len--;
607			}
608			return val * mult;
609	elmex	1.1	}
610
611	root	1.5	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	elmex	1.1
621	root	1.5	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	elmex	1.1
626	root	1.9	item->destroy ();
627	elmex	1.1
628	root	1.5	return art;
629	elmex	1.1	}
630
631	root	1.5	int
632			numb_ingred (const char *buf)
633			{
634	elmex	1.1	int numb;
635
636	root	1.5	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	elmex	1.1	}
672
673	root	1.5	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	elmex	1.1	}
695			return rp;
696			}
697
698	root	1.5	void
699			free_all_recipes (void)
700	elmex	1.1	{
701	root	1.5	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	root	1.2	}
722	root	1.5	delete formula;
723	root	1.2	}
724	root	1.3
725	root	1.5	delete fl;
726	elmex	1.1	}
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	root	1.5	static void
741			build_stringlist (const char str, char *result_list, size_t result_size)
742	elmex	1.1	{
743	root	1.5	char *dup;
744			char *p;
745			size_t size;
746			size_t i;
747	elmex	1.1
748	root	1.5	dup = strdup_local (str);
749			if (dup == NULL)
750			fatal (OUT_OF_MEMORY);
751	elmex	1.1
752	root	1.5	size = 0;
753			for (p = strtok (dup, ","); p != NULL; p = strtok (NULL, ","))
754			size++;
755	elmex	1.1
756	root	1.5	result_list = (char ) malloc (size sizeof (*result_list));
757	root	1.3
758	root	1.5	*result_size = size;
759	elmex	1.1
760	root	1.5	for (i = 0; i < size; i++)
761			{
762			(*result_list)[i] = dup;
763			dup = dup + strlen (dup) + 1;
764	elmex	1.1	}
765			}