| 1 |
/* |
| 2 |
* This file is part of Crossfire TRT, the Multiplayer Online Role Playing Game. |
| 3 |
* |
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* Copyright (©) 2005,2006,2007 Marc Alexander Lehmann / Robin Redeker / the Crossfire TRT team |
| 5 |
* Copyright (©) 2002,2007 Mark Wedel & Crossfire Development Team |
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* Copyright (©) 1992,2007 Frank Tore Johansen |
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* |
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* Crossfire TRT is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License as published by the Free |
| 10 |
* Software Foundation; either version 2 of the License, or (at your option) |
| 11 |
* any later version. |
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* |
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* This program is distributed in the hope that it will be useful, but |
| 14 |
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY |
| 15 |
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| 16 |
* for more details. |
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* |
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* You should have received a copy of the GNU General Public License along |
| 19 |
* with Crossfire TRT; if not, write to the Free Software Foundation, Inc. 51 |
| 20 |
* Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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* |
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* The authors can be reached via e-mail to <crossfire@schmorp.de> |
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*/ |
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|
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/* Basic stuff for use with the alchemy code. Clearly some of this stuff |
| 26 |
* could go into server/alchemy, but I left it here just in case it proves |
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* more generally useful. |
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* |
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* Nov 1995 - file created by b.t. thomas@astro.psu.edu |
| 30 |
*/ |
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|
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|
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/* Our definition of 'formula' is any product of an alchemical process. |
| 34 |
* Ingredients are just comma delimited list of archetype (or object) |
| 35 |
* names. |
| 36 |
*/ |
| 37 |
|
| 38 |
/* Example 'formula' entry in libdir/formulae: |
| 39 |
* object transparency |
| 40 |
* chance 10 |
| 41 |
* ingred dust of beholdereye,gem |
| 42 |
* arch potion_generic |
| 43 |
*/ |
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|
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#include <cctype> |
| 46 |
|
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#include <global.h> |
| 48 |
#include <object.h> |
| 49 |
|
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static void build_stringlist (const char *str, char ***result_list, size_t * result_size); |
| 51 |
|
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static recipelist *formulalist; |
| 53 |
|
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static recipelist * |
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init_recipelist (void) |
| 56 |
{ |
| 57 |
recipelist *tl = new recipelist; |
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|
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tl->total_chance = 0; |
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tl->number = 0; |
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tl->items = 0; |
| 62 |
tl->next = 0; |
| 63 |
|
| 64 |
return tl; |
| 65 |
} |
| 66 |
|
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static recipe * |
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get_empty_formula (void) |
| 69 |
{ |
| 70 |
recipe *t = new recipe; |
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|
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t->chance = 0; |
| 73 |
t->index = 0; |
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t->transmute = 0; |
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t->yield = 0; |
| 76 |
t->diff = 0; |
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t->exp = 0; |
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t->keycode = 0; |
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t->title = NULL; |
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t->arch_names = 0; |
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t->arch_name = NULL; |
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t->skill = NULL; |
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t->cauldron = NULL; |
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t->ingred = NULL; |
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t->next = NULL; |
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return t; |
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} |
| 88 |
|
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/* get_formulalist() - returns pointer to the formula list */ |
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recipelist * |
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get_formulalist (int i) |
| 92 |
{ |
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recipelist *fl = formulalist; |
| 94 |
int number = i; |
| 95 |
|
| 96 |
while (fl && number > 1) |
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{ |
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if (!(fl = fl->next)) |
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break; |
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number--; |
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} |
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|
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return fl; |
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} |
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|
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/* check_recipe() - makes sure we actually have the requested artifact |
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* and archetype. */ |
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static int |
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check_recipe (const recipe *rp) |
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{ |
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size_t i; |
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int result = 1; |
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|
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for (i = 0; i < rp->arch_names; i++) |
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{ |
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if (archetype::find (rp->arch_name[i]) != NULL) |
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{ |
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artifact *art = locate_recipe_artifact (rp, i); |
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|
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if (!art && strcmp (rp->title, "NONE") != 0) |
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{ |
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LOG (llevError, "WARNING: Formula %s of %s has no artifact.\n", rp->arch_name[i], &rp->title); |
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result = 0; |
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} |
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} |
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else |
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{ |
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LOG (llevError, "WARNING: Can't find archetype %s for formula %s\n", rp->arch_name[i], &rp->title); |
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result = 0; |
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} |
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} |
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|
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return result; |
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} |
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|
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/* |
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* init_formulae() - Builds up the lists of formula from the file in |
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* the libdir. -b.t. |
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*/ |
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void |
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init_formulae (void) |
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{ |
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static int has_been_done = 0; |
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FILE *fp; |
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char filename[MAX_BUF], buf[MAX_BUF], *cp, *next; |
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recipe *formula = NULL; |
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recipelist *fl = init_recipelist (); |
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linked_char *tmp; |
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int value, comp; |
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|
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if (!formulalist) |
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formulalist = fl; |
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|
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if (has_been_done) |
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return; |
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else |
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has_been_done = 1; |
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|
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sprintf (filename, "%s/formulae", settings.datadir); |
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LOG (llevDebug, "Reading alchemical formulae from %s...\n", filename); |
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if ((fp = open_and_uncompress (filename, 0, &comp)) == NULL) |
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{ |
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LOG (llevError, "Can't open %s.\n", filename); |
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return; |
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} |
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|
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while (fgets (buf, MAX_BUF, fp) != NULL) |
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{ |
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if (*buf == '#') |
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continue; |
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if ((cp = strchr (buf, '\n')) != NULL) |
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*cp = '\0'; |
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cp = buf; |
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while (*cp == ' ') /* Skip blanks */ |
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cp++; |
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|
| 177 |
if (!strncmp (cp, "object", 6)) |
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{ |
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formula = get_empty_formula (); |
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formula->title = strchr (cp, ' ') + 1; |
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} |
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else if (!strncmp (cp, "keycode", 7)) |
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formula->keycode = strchr (cp, ' ') + 1; |
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else if (sscanf (cp, "trans %d", &value)) |
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formula->transmute = (uint16) value; |
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else if (sscanf (cp, "yield %d", &value)) |
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formula->yield = (uint16) value; |
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else if (sscanf (cp, "chance %d", &value)) |
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formula->chance = (uint16) value; |
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else if (sscanf (cp, "exp %d", &value)) |
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formula->exp = (uint16) value; |
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else if (sscanf (cp, "diff %d", &value)) |
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formula->diff = (uint16) value; |
| 194 |
else if (!strncmp (cp, "ingred", 6)) |
| 195 |
{ |
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int numb_ingred = 1; |
| 197 |
|
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cp = strchr (cp, ' ') + 1; |
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do |
| 200 |
{ |
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if ((next = strchr (cp, ',')) != NULL) |
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{ |
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*(next++) = '\0'; |
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numb_ingred++; |
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} |
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|
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tmp = new linked_char; |
| 208 |
|
| 209 |
tmp->name = cp; |
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tmp->next = formula->ingred; |
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formula->ingred = tmp; |
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/* each ingredient's ASCII value is coadded. Later on this |
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* value will be used allow us to search the formula lists |
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* quickly for the right recipe. |
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*/ |
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formula->index += strtoint (cp); |
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} |
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while ((cp = next) != NULL); |
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|
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/* now find the correct (# of ingred ordered) formulalist */ |
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fl = formulalist; |
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while (numb_ingred != 1) |
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{ |
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if (!fl->next) |
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fl->next = init_recipelist (); |
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|
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fl = fl->next; |
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numb_ingred--; |
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} |
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|
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fl->total_chance += formula->chance; |
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fl->number++; |
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formula->next = fl->items; |
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fl->items = formula; |
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} |
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else if (!strncmp (cp, "arch", 4)) |
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{ |
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build_stringlist (strchr (cp, ' ') + 1, &formula->arch_name, &formula->arch_names); |
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check_recipe (formula); |
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} |
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else if (!strncmp (cp, "skill", 5)) |
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formula->skill = strchr (cp, ' ') + 1; |
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else if (!strncmp (cp, "cauldron", 8)) |
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formula->cauldron = strchr (cp, ' ') + 1; |
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else |
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LOG (llevError, "Unknown input in file %s: %s\n", filename, buf); |
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} |
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|
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LOG (llevDebug, "done.\n"); |
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close_and_delete (fp, comp); |
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/* Lastly, lets check for problems in formula we got */ |
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check_formulae (); |
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} |
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|
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/* check_formulae()- since we are doing a squential search on the |
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* formulae lists now, we have to be carefull that we dont have 2 |
| 257 |
* formula with the exact same index value. Under the new nbatches |
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* code, it is possible to have multiples of ingredients in a cauldron |
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* which could result in an index formula mismatch. We *don't* check for |
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* that possibility here. -b.t. |
| 261 |
*/ |
| 262 |
void |
| 263 |
check_formulae (void) |
| 264 |
{ |
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recipelist *fl; |
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recipe *check, *formula; |
| 267 |
int numb = 1; |
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|
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LOG (llevDebug, "Checking formulae lists...\n"); |
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|
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for (fl = formulalist; fl; fl = fl->next) |
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{ |
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for (formula = fl->items; formula; formula = formula->next) |
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for (check = formula->next; check; check = check->next) |
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if (check->index == formula->index) |
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{ |
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LOG (llevError, " ERROR: On %d ingred list: ", numb); |
| 278 |
LOG (llevError, "Formulae [%s] of %s and [%s] of %s have matching index id (%d)\n", |
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formula->arch_name[0], &formula->title, check->arch_name[0], &check->title, formula->index); |
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} |
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numb++; |
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} |
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|
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LOG (llevDebug, "done.\n"); |
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|
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} |
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|
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/* Borrowed (again) from the artifacts code for this */ |
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|
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void |
| 291 |
dump_alchemy (void) |
| 292 |
{ |
| 293 |
recipelist *fl = formulalist; |
| 294 |
recipe *formula = NULL; |
| 295 |
linked_char *next; |
| 296 |
int num_ingred = 1; |
| 297 |
|
| 298 |
fprintf (logfile, "\n"); |
| 299 |
while (fl) |
| 300 |
{ |
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fprintf (logfile, "\n Formulae with %d ingredient%s %d Formulae with total_chance=%d\n", |
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num_ingred, num_ingred > 1 ? "s." : ".", fl->number, fl->total_chance); |
| 303 |
for (formula = fl->items; formula; formula = formula->next) |
| 304 |
{ |
| 305 |
artifact *art = NULL; |
| 306 |
char buf[MAX_BUF]; |
| 307 |
size_t i; |
| 308 |
|
| 309 |
for (i = 0; i < formula->arch_names; i++) |
| 310 |
{ |
| 311 |
const char *string = formula->arch_name[i]; |
| 312 |
|
| 313 |
if (archetype::find (string) != NULL) |
| 314 |
{ |
| 315 |
art = locate_recipe_artifact (formula, i); |
| 316 |
if (!art && strcmp (formula->title, "NONE")) |
| 317 |
LOG (llevError, "Formula %s has no artifact!\n", &formula->title); |
| 318 |
else |
| 319 |
{ |
| 320 |
if (strcmp (formula->title, "NONE")) |
| 321 |
sprintf (buf, "%s of %s", string, &formula->title); |
| 322 |
else |
| 323 |
sprintf (buf, "%s", string); |
| 324 |
fprintf (logfile, "%-30s(%d) bookchance %3d ", buf, formula->index, formula->chance); |
| 325 |
fprintf (logfile, "skill %s", &formula->skill); |
| 326 |
fprintf (logfile, "\n"); |
| 327 |
if (formula->ingred != NULL) |
| 328 |
{ |
| 329 |
int nval = 0, tval = 0; |
| 330 |
|
| 331 |
fprintf (logfile, "\tIngred: "); |
| 332 |
for (next = formula->ingred; next != NULL; next = next->next) |
| 333 |
{ |
| 334 |
if (nval != 0) |
| 335 |
fprintf (logfile, ","); |
| 336 |
fprintf (logfile, "%s(%d)", &next->name, (nval = strtoint (next->name))); |
| 337 |
tval += nval; |
| 338 |
} |
| 339 |
fprintf (logfile, "\n"); |
| 340 |
if (tval != formula->index) |
| 341 |
fprintf (logfile, "WARNING:ingredient list and formula values not equal.\n"); |
| 342 |
} |
| 343 |
if (formula->skill != NULL) |
| 344 |
fprintf (logfile, "\tSkill Required: %s", &formula->skill); |
| 345 |
if (formula->cauldron != NULL) |
| 346 |
fprintf (logfile, "\tCauldron: %s\n", &formula->cauldron); |
| 347 |
fprintf (logfile, "\tDifficulty: %d\t Exp: %d\n", formula->diff, formula->exp); |
| 348 |
} |
| 349 |
} |
| 350 |
else |
| 351 |
LOG (llevError, "Can't find archetype:%s for formula %s\n", string, &formula->title); |
| 352 |
} |
| 353 |
} |
| 354 |
fprintf (logfile, "\n"); |
| 355 |
fl = fl->next; |
| 356 |
num_ingred++; |
| 357 |
} |
| 358 |
} |
| 359 |
|
| 360 |
/* Find a treasure with a matching name. The 'depth' parameter is |
| 361 |
* only there to prevent infinite loops in treasure lists (a list |
| 362 |
* referencing another list pointing back to the first one). */ |
| 363 |
archetype * |
| 364 |
find_treasure_by_name (const treasure *t, const char *name, int depth) |
| 365 |
{ |
| 366 |
if (depth > 10) |
| 367 |
return 0; |
| 368 |
|
| 369 |
while (t) |
| 370 |
{ |
| 371 |
if (t->name) |
| 372 |
{ |
| 373 |
if (treasurelist *tl = treasurelist::find (t->name)) |
| 374 |
if (tl->items) |
| 375 |
if (archetype *at = find_treasure_by_name (tl->items, name, depth + 1)) |
| 376 |
return at; |
| 377 |
} |
| 378 |
else |
| 379 |
{ |
| 380 |
if (t->item && !strcasecmp (t->item->object::name, name)) |
| 381 |
return t->item; |
| 382 |
} |
| 383 |
|
| 384 |
if (t->next_yes) |
| 385 |
if (archetype *at = find_treasure_by_name (t->next_yes, name, depth)) |
| 386 |
return at; |
| 387 |
|
| 388 |
if (t->next_no) |
| 389 |
if (archetype *at = find_treasure_by_name (t->next_no, name, depth)) |
| 390 |
return at; |
| 391 |
|
| 392 |
t = t->next; |
| 393 |
} |
| 394 |
|
| 395 |
return 0; |
| 396 |
} |
| 397 |
|
| 398 |
/* If several archetypes have the same name, the value of the first |
| 399 |
* one with that name will be returned. This happens for the |
| 400 |
* mushrooms (mushroom_1, mushroom_2 and mushroom_3). For the |
| 401 |
* monsters' body parts, there may be several monsters with the same |
| 402 |
* name. This is not a problem if these monsters have the same level |
| 403 |
* (e.g. sage & c_sage) or if only one of the monsters generates the |
| 404 |
* body parts that we are looking for (e.g. big_dragon and |
| 405 |
* big_dragon_worthless). */ |
| 406 |
long |
| 407 |
find_ingred_cost (const char *name) |
| 408 |
{ |
| 409 |
archetype *at2; |
| 410 |
artifactlist *al; |
| 411 |
artifact *art; |
| 412 |
long mult; |
| 413 |
char *cp; |
| 414 |
char part1[100]; |
| 415 |
char part2[100]; |
| 416 |
|
| 417 |
/* same as atoi(), but skip number */ |
| 418 |
mult = 0; |
| 419 |
while (isdigit (*name)) |
| 420 |
{ |
| 421 |
mult = 10 * mult + (*name - '0'); |
| 422 |
name++; |
| 423 |
} |
| 424 |
|
| 425 |
if (mult > 0) |
| 426 |
name++; |
| 427 |
else |
| 428 |
mult = 1; |
| 429 |
|
| 430 |
/* first, try to match the name of an archetype */ |
| 431 |
for_all_archetypes (at) |
| 432 |
{ |
| 433 |
if (at->title != NULL) |
| 434 |
{ |
| 435 |
/* inefficient, but who cares? */ |
| 436 |
sprintf (part1, "%s %s", &at->object::name, &at->title); |
| 437 |
if (!strcasecmp (part1, name)) |
| 438 |
return mult * at->value; |
| 439 |
} |
| 440 |
if (!strcasecmp (at->object::name, name)) |
| 441 |
return mult * at->value; |
| 442 |
} |
| 443 |
|
| 444 |
/* second, try to match an artifact ("arch of something") */ |
| 445 |
cp = strstr (name, " of "); |
| 446 |
if (cp != NULL) |
| 447 |
{ |
| 448 |
strcpy (part1, name); |
| 449 |
part1[cp - name] = '\0'; |
| 450 |
strcpy (part2, cp + 4); |
| 451 |
|
| 452 |
/* find the first archetype matching the first part of the name */ |
| 453 |
for_all_archetypes (at) |
| 454 |
if (!strcasecmp (at->object::name, part1) && at->title == NULL) |
| 455 |
{ |
| 456 |
/* find the first artifact derived from that archetype (same type) */ |
| 457 |
for (al = first_artifactlist; al; al = al->next) |
| 458 |
if (al->type == at->type) |
| 459 |
{ |
| 460 |
for (art = al->items; art; art = art->next) |
| 461 |
if (!strcasecmp (art->item->name, part2)) |
| 462 |
return mult * at->value * art->item->value; |
| 463 |
} |
| 464 |
} |
| 465 |
} |
| 466 |
|
| 467 |
/* third, try to match a body part ("arch's something") */ |
| 468 |
cp = strstr (name, "'s "); |
| 469 |
if (cp) |
| 470 |
{ |
| 471 |
strcpy (part1, name); |
| 472 |
part1[cp - name] = '\0'; |
| 473 |
strcpy (part2, cp + 3); |
| 474 |
/* examine all archetypes matching the first part of the name */ |
| 475 |
for_all_archetypes (at) |
| 476 |
if (!strcasecmp (at->object::name, part1) && at->title == NULL) |
| 477 |
{ |
| 478 |
if (at->randomitems) |
| 479 |
{ |
| 480 |
at2 = find_treasure_by_name (at->randomitems->items, part2, 0); |
| 481 |
if (at2) |
| 482 |
return mult * at2->value * isqrt (at->level * 2); |
| 483 |
} |
| 484 |
} |
| 485 |
} |
| 486 |
|
| 487 |
/* failed to find any matching items -- formula should be checked */ |
| 488 |
return -1; |
| 489 |
} |
| 490 |
|
| 491 |
/* code copied from dump_alchemy() and modified by Raphael Quinet */ |
| 492 |
void |
| 493 |
dump_alchemy_costs (void) |
| 494 |
{ |
| 495 |
recipelist *fl = formulalist; |
| 496 |
recipe *formula = NULL; |
| 497 |
linked_char *next; |
| 498 |
int num_ingred = 1; |
| 499 |
int num_errors = 0; |
| 500 |
long cost; |
| 501 |
long tcost; |
| 502 |
|
| 503 |
fprintf (logfile, "\n"); |
| 504 |
while (fl) |
| 505 |
{ |
| 506 |
fprintf (logfile, "\n Formulae with %d ingredient%s %d Formulae with total_chance=%d\n", |
| 507 |
num_ingred, num_ingred > 1 ? "s." : ".", fl->number, fl->total_chance); |
| 508 |
for (formula = fl->items; formula; formula = formula->next) |
| 509 |
{ |
| 510 |
artifact *art = NULL; |
| 511 |
archetype *at = NULL; |
| 512 |
char buf[MAX_BUF]; |
| 513 |
size_t i; |
| 514 |
|
| 515 |
for (i = 0; i < formula->arch_names; i++) |
| 516 |
{ |
| 517 |
const char *string = formula->arch_name[i]; |
| 518 |
|
| 519 |
if ((at = archetype::find (string)) != NULL) |
| 520 |
{ |
| 521 |
art = locate_recipe_artifact (formula, i); |
| 522 |
if (!art && strcmp (formula->title, "NONE")) |
| 523 |
LOG (llevError, "Formula %s has no artifact\n", &formula->title); |
| 524 |
else |
| 525 |
{ |
| 526 |
if (!strcmp (formula->title, "NONE")) |
| 527 |
sprintf (buf, "%s", string); |
| 528 |
else |
| 529 |
sprintf (buf, "%s of %s", string, &formula->title); |
| 530 |
fprintf (logfile, "\n%-40s bookchance %3d skill %s\n", buf, formula->chance, &(formula->skill)); |
| 531 |
if (formula->ingred != NULL) |
| 532 |
{ |
| 533 |
tcost = 0; |
| 534 |
for (next = formula->ingred; next != NULL; next = next->next) |
| 535 |
{ |
| 536 |
cost = find_ingred_cost (next->name); |
| 537 |
if (cost < 0) |
| 538 |
num_errors++; |
| 539 |
fprintf (logfile, "\t%-33s%5ld\n", &next->name, cost); |
| 540 |
if (cost < 0 || tcost < 0) |
| 541 |
tcost = -1; |
| 542 |
else |
| 543 |
tcost += cost; |
| 544 |
} |
| 545 |
if (art != NULL && art->item != NULL) |
| 546 |
cost = at->value * art->item->value; |
| 547 |
else |
| 548 |
cost = at->value; |
| 549 |
fprintf (logfile, "\t\tBuying result costs: %5ld", cost); |
| 550 |
if (formula->yield > 1) |
| 551 |
{ |
| 552 |
fprintf (logfile, " to %ld (max %d items)\n", cost * formula->yield, formula->yield); |
| 553 |
cost = cost * (formula->yield + 1L) / 2L; |
| 554 |
} |
| 555 |
else |
| 556 |
fprintf (logfile, "\n"); |
| 557 |
fprintf (logfile, "\t\tIngredients cost: %5ld\n\t\tComment: ", tcost); |
| 558 |
if (tcost < 0) |
| 559 |
fprintf (logfile, "Could not find some ingredients. Check the formula!\n"); |
| 560 |
else if (tcost > cost) |
| 561 |
fprintf (logfile, "Ingredients are much too expensive. Useless formula.\n"); |
| 562 |
else if (tcost * 2L > cost) |
| 563 |
fprintf (logfile, "Ingredients are too expensive.\n"); |
| 564 |
else if (tcost * 10L < cost) |
| 565 |
fprintf (logfile, "Ingredients are too cheap.\n"); |
| 566 |
else |
| 567 |
fprintf (logfile, "OK.\n"); |
| 568 |
} |
| 569 |
} |
| 570 |
} |
| 571 |
else |
| 572 |
LOG (llevError, "Can't find archetype:%s for formula %s\n", string, &formula->title); |
| 573 |
} |
| 574 |
} |
| 575 |
fprintf (logfile, "\n"); |
| 576 |
fl = fl->next; |
| 577 |
num_ingred++; |
| 578 |
} |
| 579 |
if (num_errors > 0) |
| 580 |
fprintf (logfile, "WARNING: %d objects required by the formulae do not exist in the game.\n", num_errors); |
| 581 |
} |
| 582 |
|
| 583 |
const char * |
| 584 |
ingred_name (const char *name) |
| 585 |
{ |
| 586 |
const char *cp = name; |
| 587 |
|
| 588 |
if (atoi (cp)) |
| 589 |
cp = strchr (cp, ' ') + 1; |
| 590 |
return cp; |
| 591 |
} |
| 592 |
|
| 593 |
/* strtoint() - we use this to convert buf into an integer |
| 594 |
* equal to the coadded sum of the (lowercase) character |
| 595 |
* ASCII values in buf (times prepended integers). |
| 596 |
*/ |
| 597 |
|
| 598 |
int |
| 599 |
strtoint (const char *buf) |
| 600 |
{ |
| 601 |
const char *cp = ingred_name (buf); |
| 602 |
int val = 0, len = strlen (cp), mult = numb_ingred (buf); |
| 603 |
|
| 604 |
while (len) |
| 605 |
{ |
| 606 |
val += tolower (*cp); |
| 607 |
cp++; |
| 608 |
len--; |
| 609 |
} |
| 610 |
return val * mult; |
| 611 |
} |
| 612 |
|
| 613 |
artifact * |
| 614 |
locate_recipe_artifact (const recipe *rp, size_t idx) |
| 615 |
{ |
| 616 |
archetype *at = archetype::find (rp->arch_name [idx]); |
| 617 |
|
| 618 |
if (at) |
| 619 |
if (artifactlist *al = find_artifactlist (at->type)) |
| 620 |
for (artifact *art = al->items; art; art = art->next) |
| 621 |
if (art->item->name == rp->title) |
| 622 |
return art; |
| 623 |
|
| 624 |
return 0; |
| 625 |
} |
| 626 |
|
| 627 |
int |
| 628 |
numb_ingred (const char *buf) |
| 629 |
{ |
| 630 |
int numb; |
| 631 |
|
| 632 |
if ((numb = atoi (buf))) |
| 633 |
return numb; |
| 634 |
else |
| 635 |
return 1; |
| 636 |
} |
| 637 |
|
| 638 |
recipelist * |
| 639 |
get_random_recipelist (void) |
| 640 |
{ |
| 641 |
recipelist *fl = NULL; |
| 642 |
int number = 0, roll = 0; |
| 643 |
|
| 644 |
/* first, determine # of recipelist we have */ |
| 645 |
for (fl = get_formulalist (1); fl; fl = fl->next) |
| 646 |
number++; |
| 647 |
|
| 648 |
/* now, randomly choose one */ |
| 649 |
if (number > 0) |
| 650 |
roll = rndm (number); |
| 651 |
|
| 652 |
fl = get_formulalist (1); |
| 653 |
while (roll && fl) |
| 654 |
{ |
| 655 |
if (fl->next) |
| 656 |
fl = fl->next; |
| 657 |
else |
| 658 |
break; |
| 659 |
roll--; |
| 660 |
} |
| 661 |
if (!fl) /* failed! */ |
| 662 |
LOG (llevError, "get_random_recipelist(): no recipelists found!\n"); |
| 663 |
else if (fl->total_chance == 0) |
| 664 |
fl = get_random_recipelist (); |
| 665 |
|
| 666 |
return fl; |
| 667 |
} |
| 668 |
|
| 669 |
recipe * |
| 670 |
get_random_recipe (recipelist * rpl) |
| 671 |
{ |
| 672 |
recipelist *fl = rpl; |
| 673 |
recipe *rp = NULL; |
| 674 |
int r = 0; |
| 675 |
|
| 676 |
/* looks like we have to choose a random one */ |
| 677 |
if (fl == NULL) |
| 678 |
if ((fl = get_random_recipelist ()) == NULL) |
| 679 |
return rp; |
| 680 |
|
| 681 |
if (fl->total_chance > 0) |
| 682 |
{ |
| 683 |
r = rndm (fl->total_chance); |
| 684 |
for (rp = fl->items; rp; rp = rp->next) |
| 685 |
{ |
| 686 |
r -= rp->chance; |
| 687 |
if (r < 0) |
| 688 |
break; |
| 689 |
} |
| 690 |
} |
| 691 |
return rp; |
| 692 |
} |
| 693 |
|
| 694 |
void |
| 695 |
free_all_recipes (void) |
| 696 |
{ |
| 697 |
recipelist *fl = formulalist, *flnext; |
| 698 |
recipe *formula = NULL, *next; |
| 699 |
linked_char *lchar, *charnext; |
| 700 |
|
| 701 |
LOG (llevDebug, "Freeing all the recipes\n"); |
| 702 |
for (fl = formulalist; fl != NULL; fl = flnext) |
| 703 |
{ |
| 704 |
flnext = fl->next; |
| 705 |
|
| 706 |
for (formula = fl->items; formula != NULL; formula = next) |
| 707 |
{ |
| 708 |
next = formula->next; |
| 709 |
|
| 710 |
free (formula->arch_name[0]); |
| 711 |
free (formula->arch_name); |
| 712 |
|
| 713 |
for (lchar = formula->ingred; lchar; lchar = charnext) |
| 714 |
{ |
| 715 |
charnext = lchar->next; |
| 716 |
delete lchar; |
| 717 |
} |
| 718 |
delete formula; |
| 719 |
} |
| 720 |
|
| 721 |
delete fl; |
| 722 |
} |
| 723 |
} |
| 724 |
|
| 725 |
/** |
| 726 |
* Split a comma separated string list into words. |
| 727 |
* |
| 728 |
* @param str the string to split |
| 729 |
* |
| 730 |
* @param result_list pointer to return value for the newly created list; the |
| 731 |
* caller is responsible for freeing both *result_list and **result_list. |
| 732 |
* |
| 733 |
* @param result_size pointer to return value for the size of the newly |
| 734 |
* created list |
| 735 |
*/ |
| 736 |
static void |
| 737 |
build_stringlist (const char *str, char ***result_list, size_t * result_size) |
| 738 |
{ |
| 739 |
char *dup; |
| 740 |
char *p; |
| 741 |
size_t size; |
| 742 |
size_t i; |
| 743 |
|
| 744 |
dup = strdup (str); |
| 745 |
if (dup == NULL) |
| 746 |
fatal (OUT_OF_MEMORY); |
| 747 |
|
| 748 |
size = 0; |
| 749 |
for (p = strtok (dup, ","); p != NULL; p = strtok (NULL, ",")) |
| 750 |
size++; |
| 751 |
|
| 752 |
*result_list = (char **) malloc (size * sizeof (*result_list)); |
| 753 |
|
| 754 |
*result_size = size; |
| 755 |
|
| 756 |
for (i = 0; i < size; i++) |
| 757 |
{ |
| 758 |
(*result_list)[i] = dup; |
| 759 |
dup = dup + strlen (dup) + 1; |
| 760 |
} |
| 761 |
} |
