1 |
/* |
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* CrossFire, A Multiplayer game for X-windows |
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* |
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* Copyright (C) 2005, 2006, 2007 Marc Lehmann & Crossfire+ Development Team |
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* Copyright (C) 2002 Mark Wedel & Crossfire Development Team |
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* Copyright (C) 1992 Frank Tore Johansen |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; either version 2 of the License, or |
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* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
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* |
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* The authors can be reached via e-mail at <crossfire@schmorp.de> |
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*/ |
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|
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#include <cassert> |
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|
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#include <global.h> |
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#include <funcpoint.h> |
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#include <loader.h> |
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|
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#include <tr1/functional> |
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#include <tr1/unordered_map> |
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|
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int arch_init; /* True if doing arch initialization */ |
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|
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/* The naming of these functions is really poor - they are all |
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* pretty much named '.._arch_...', but they may more may not |
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* return archetypes. Some make the arch_to_object call, and thus |
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* return an object. Perhaps those should be called 'archob' functions |
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* to denote they return an object derived from the archetype. |
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* MSW 2003-04-29 |
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*/ |
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|
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// the hashtable |
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typedef std::tr1::unordered_map |
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< |
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const char *, |
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arch_ptr, |
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str_hash, |
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str_equal, |
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slice_allocator< std::pair<const char *const, arch_ptr> > |
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> HT; |
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|
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static HT ht (5000); |
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|
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/** |
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* GROS - This function retrieves an archetype given the name that appears |
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* during the game (for example, "writing pen" instead of "stylus"). |
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* It does not use the hashtable system, but browse the whole archlist each time. |
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* I suggest not to use it unless you really need it because of performance issue. |
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* It is currently used by scripting extensions (create-object). |
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* Params: |
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* - name: the name we're searching for (ex: "writing pen"); |
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* Return value: |
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* - the archetype found or null if nothing was found. |
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*/ |
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archetype * |
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find_archetype_by_object_name (const char *name) |
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{ |
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shstr_cmp name_cmp (name); |
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|
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for (archetype *at = first_archetype; at; at = at->next) |
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if (at->clone.name == name_cmp) |
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return at; |
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|
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return 0; |
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} |
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|
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/** |
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* This function retrieves an archetype by type and name that appears during |
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* the game. It is basically the same as find_archetype_by_object_name() |
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* except that it considers only items of the given type. |
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*/ |
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archetype * |
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find_archetype_by_object_type_name (int type, const char *name) |
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{ |
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shstr_cmp name_cmp (name); |
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|
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for (archetype *at = first_archetype; at; at = at->next) |
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if (at->clone.name == name_cmp && at->clone.type == type) |
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return at; |
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|
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return 0; |
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} |
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|
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/* This is a lot like the above function. Instead, we are trying to match |
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* the arch->skill values. type is the type of object to match |
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* against (eg, to only match against skills or only skill objects for example). |
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* If type is -1, ew don't match on type. |
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*/ |
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object * |
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get_archetype_by_skill_name (const char *skill, int type) |
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{ |
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shstr_cmp skill_cmp (skill); |
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|
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for (archetype *at = first_archetype; at; at = at->next) |
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if (at->clone.skill == skill_cmp && (type == -1 || type == at->clone.type)) |
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return arch_to_object (at); |
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|
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return 0; |
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} |
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|
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/* similiar to above - this returns the first archetype |
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* that matches both the type and subtype. type and subtype |
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* can be -1 to say ignore, but in this case, the match it does |
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* may not be very useful. This function is most useful when |
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* subtypes are known to be unique for a particular type |
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* (eg, skills) |
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*/ |
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archetype * |
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get_archetype_by_type_subtype (int type, int subtype) |
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{ |
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for (archetype *at = first_archetype; at; at = at->next) |
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if ((type == -1 || type == at->clone.type) && (subtype == -1 || subtype == at->clone.subtype)) |
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return at; |
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|
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return 0; |
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} |
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|
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/** |
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* GROS - this returns a new object given the name that appears during the game |
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* (for example, "writing pen" instead of "stylus"). |
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* Params: |
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* - name: The name we're searching for (ex: "writing pen"); |
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* Return value: |
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* - a corresponding object if found; a singularity object if not found. |
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* Note by MSW - it appears that it takes the full name and keeps |
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* shortening it until it finds a match. I re-wrote this so that it |
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* doesn't malloc it each time - not that this function is used much, |
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* but it otherwise had a big memory leak. |
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*/ |
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object * |
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get_archetype_by_object_name (const char *name) |
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{ |
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char tmpname[MAX_BUF]; |
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int i; |
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|
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assign (tmpname, name); |
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|
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for (i = strlen (tmpname); i > 0; i--) |
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{ |
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tmpname[i] = 0; |
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|
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if (archetype *at = find_archetype_by_object_name (tmpname)) |
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return arch_to_object (at); |
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} |
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|
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return create_singularity (name); |
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} |
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|
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/* This is a subset of the parse_id command. Basically, name can be |
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* a string seperated lists of things to match, with certain keywords. |
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* pl is the player (only needed to set count properly) |
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* op is the item we are trying to match. Calling function takes care |
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* of what action might need to be done and if it is valid |
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* (pickup, drop, etc.) Return NONZERO if we have a match. A higher |
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* value means a better match. 0 means no match. |
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* |
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* Brief outline of the procedure: |
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* We take apart the name variable into the individual components. |
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* cases for 'all' and unpaid are pretty obvious. |
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* Next, we check for a count (either specified in name, or in the |
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* player object.) |
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* If count is 1, make a quick check on the name. |
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* IF count is >1, we need to make plural name. Return if match. |
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* Last, make a check on the full name. |
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*/ |
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int |
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item_matched_string (object *pl, object *op, const char *name) |
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{ |
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char *cp, local_name[MAX_BUF]; |
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int count, retval = 0; |
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|
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assign (local_name, name); /* strtok is destructive to name */ |
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|
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for (cp = strtok (local_name, ","); cp; cp = strtok (NULL, ",")) |
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{ |
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while (cp[0] == ' ') |
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++cp; /* get rid of spaces */ |
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|
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/* LOG(llevDebug,"Trying to match %s\n", cp); */ |
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/* All is a very generic match - low match value */ |
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if (!strcmp (cp, "all")) |
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return 1; |
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|
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/* unpaid is a little more specific */ |
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if (!strcmp (cp, "unpaid") && QUERY_FLAG (op, FLAG_UNPAID)) |
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return 2; |
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if (!strcmp (cp, "cursed") && QUERY_FLAG (op, FLAG_KNOWN_CURSED) && (QUERY_FLAG (op, FLAG_CURSED) || QUERY_FLAG (op, FLAG_DAMNED))) |
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return 2; |
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|
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if (!strcmp (cp, "unlocked") && !QUERY_FLAG (op, FLAG_INV_LOCKED)) |
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return 2; |
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|
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/* Allow for things like '100 arrows' */ |
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if ((count = atoi (cp)) != 0) |
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{ |
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cp = strchr (cp, ' '); |
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while (cp && cp[0] == ' ') |
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++cp; /* get rid of spaces */ |
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} |
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else |
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{ |
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if (pl->type == PLAYER) |
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count = pl->contr->count; |
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else |
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count = 0; |
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} |
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|
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if (!cp || cp[0] == '\0' || count < 0) |
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return 0; |
222 |
|
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|
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/* The code here should go from highest retval to lowest. That |
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* is because of the 'else' handling - we don't want to match on |
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* something and set a low retval, even though it may match a higher retcal |
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* later. So keep it in descending order here, so we try for the best |
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* match first, and work downward. |
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*/ |
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if (!strcasecmp (cp, query_name (op))) |
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retval = 20; |
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else if (!strcasecmp (cp, query_short_name (op))) |
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retval = 18; |
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else if (!strcasecmp (cp, query_base_name (op, 0))) |
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retval = 16; |
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else if (!strcasecmp (cp, query_base_name (op, 1))) |
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retval = 16; |
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else if (op->custom_name && !strcasecmp (cp, op->custom_name)) |
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retval = 15; |
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else if (!strncasecmp (cp, query_base_name (op, 0), strlen (cp))) |
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retval = 14; |
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else if (!strncasecmp (cp, query_base_name (op, 1), strlen (cp))) |
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retval = 14; |
244 |
/* Do substring checks, so things like 'Str+1' will match. |
245 |
* retval of these should perhaps be lower - they are lower |
246 |
* then the specific strcasecmp aboves, but still higher than |
247 |
* some other match criteria. |
248 |
*/ |
249 |
else if (strstr (query_base_name (op, 1), cp)) |
250 |
retval = 12; |
251 |
else if (strstr (query_base_name (op, 0), cp)) |
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retval = 12; |
253 |
else if (strstr (query_short_name (op), cp)) |
254 |
retval = 12; |
255 |
/* Check against plural/non plural based on count. */ |
256 |
else if (count > 1 && !strcasecmp (cp, op->name_pl)) |
257 |
retval = 6; |
258 |
else if (count == 1 && !strcasecmp (op->name, cp)) |
259 |
retval = 6; |
260 |
/* base name matched - not bad */ |
261 |
else if (strcasecmp (cp, op->name) == 0 && !count) |
262 |
retval = 4; |
263 |
/* Check for partial custom name, but give a real low priority */ |
264 |
else if (op->custom_name && strstr (op->custom_name, cp)) |
265 |
retval = 3; |
266 |
|
267 |
if (retval) |
268 |
{ |
269 |
if (pl->type == PLAYER) |
270 |
pl->contr->count = count; |
271 |
|
272 |
return retval; |
273 |
} |
274 |
} |
275 |
|
276 |
return 0; |
277 |
} |
278 |
|
279 |
/* |
280 |
* Initialises the internal linked list of archetypes (read from file). |
281 |
* Then the global "empty_archetype" pointer is initialised. |
282 |
* Then the blocksview[] array is initialised. |
283 |
*/ |
284 |
|
285 |
void |
286 |
init_archetypes (void) |
287 |
{ /* called from add_player() and edit() */ |
288 |
if (first_archetype != NULL) /* Only do this once */ |
289 |
return; |
290 |
|
291 |
arch_init = 1; |
292 |
load_archetypes (); |
293 |
arch_init = 0; |
294 |
empty_archetype = archetype::find ("empty_archetype"); |
295 |
|
296 |
/* init_blocksview();*/ |
297 |
} |
298 |
|
299 |
/* |
300 |
* An alternative way to init the hashtable which is slower, but _works_... |
301 |
*/ |
302 |
void |
303 |
init_archetable (void) |
304 |
{ |
305 |
LOG (llevDebug, " Setting up archetable...\n"); |
306 |
|
307 |
for (archetype *at = first_archetype; at; at = at->next) |
308 |
for (archetype *bt = at; bt; bt = bt->more) |
309 |
bt->hash_add (); |
310 |
|
311 |
LOG (llevDebug, "done\n"); |
312 |
} |
313 |
|
314 |
void |
315 |
free_all_archs (void) |
316 |
{ |
317 |
archetype *at, *next; |
318 |
int i = 0, f = 0; |
319 |
|
320 |
for (at = first_archetype; at; at = next) |
321 |
{ |
322 |
if (at->more) |
323 |
next = at->more; |
324 |
else |
325 |
next = at->next; |
326 |
|
327 |
delete |
328 |
at; |
329 |
|
330 |
i++; |
331 |
} |
332 |
|
333 |
LOG (llevDebug, "Freed %d archetypes, %d faces\n", i, f); |
334 |
} |
335 |
|
336 |
archetype::archetype () |
337 |
{ |
338 |
clone.arch = this; |
339 |
|
340 |
CLEAR_FLAG (&clone, FLAG_FREED); /* This shouldn't matter, since copy_to */ |
341 |
SET_FLAG (&clone, FLAG_REMOVED); /* doesn't copy these flags... */ |
342 |
} |
343 |
|
344 |
archetype::~archetype () |
345 |
{ |
346 |
//TODO: nuke ->more's |
347 |
} |
348 |
|
349 |
archetype * |
350 |
archetype::read (object_thawer &f) |
351 |
{ |
352 |
assert (f.kw == KW_object); |
353 |
|
354 |
archetype *head = new archetype; |
355 |
f.get (head->name); |
356 |
|
357 |
if (!head->clone.parse_kv (f)) |
358 |
{ |
359 |
delete head; |
360 |
return 0; |
361 |
} |
362 |
|
363 |
for (archetype *prev = head; f.kw == KW_more; ) |
364 |
{ |
365 |
f.next (); |
366 |
|
367 |
assert (f.kw == KW_object); |
368 |
|
369 |
archetype *more = new archetype; |
370 |
f.get (more->name); |
371 |
|
372 |
if (!more->clone.parse_kv (f)) |
373 |
{ |
374 |
delete head; |
375 |
return 0; |
376 |
} |
377 |
|
378 |
if (more->clone.x > head->tail_x) head->tail_x = more->clone.x; |
379 |
if (more->clone.y > head->tail_y) head->tail_y = more->clone.y; |
380 |
|
381 |
more->head = head; |
382 |
more->clone.head = &head->clone; |
383 |
prev->more = more; |
384 |
prev->clone.more = &more->clone; |
385 |
|
386 |
prev = more; |
387 |
} |
388 |
|
389 |
head->next = first_archetype; |
390 |
first_archetype = head; |
391 |
|
392 |
return head; |
393 |
} |
394 |
|
395 |
/* |
396 |
* Reads/parses the archetype-file, and copies into a linked list |
397 |
* of archetype-structures. |
398 |
*/ |
399 |
static bool |
400 |
first_arch_pass (object_thawer &f) |
401 |
{ |
402 |
for (;;) |
403 |
{ |
404 |
switch (f.kw) |
405 |
{ |
406 |
case KW_object: |
407 |
if (!archetype::read (f)) |
408 |
return false; |
409 |
continue; |
410 |
|
411 |
case KW_EOF: |
412 |
return true; |
413 |
|
414 |
default: |
415 |
if (!f.parse_error ("archetypes file")) |
416 |
return false; |
417 |
} |
418 |
|
419 |
f.next (); |
420 |
} |
421 |
} |
422 |
|
423 |
/* |
424 |
* Reads the archetype file once more, and links all pointers between |
425 |
* archetypes. |
426 |
*/ |
427 |
void |
428 |
second_arch_pass (object_thawer & thawer) |
429 |
{ |
430 |
char buf[MAX_BUF], *variable = buf, *argument, *cp; |
431 |
archetype *at = NULL, *other; |
432 |
|
433 |
while (fgets (buf, MAX_BUF, thawer) != NULL) |
434 |
{ |
435 |
if (*buf == '#') |
436 |
continue; |
437 |
|
438 |
if ((argument = strchr (buf, ' ')) != NULL) |
439 |
{ |
440 |
*argument = '\0', argument++; |
441 |
cp = argument + strlen (argument) - 1; |
442 |
while (isspace (*cp)) |
443 |
{ |
444 |
*cp = '\0'; |
445 |
cp--; |
446 |
} |
447 |
} |
448 |
|
449 |
if (!strcmp ("object", variable)) |
450 |
{ |
451 |
if ((at = archetype::find (argument)) == NULL) |
452 |
LOG (llevError, "Warning: failed to find arch %s\n", argument); |
453 |
} |
454 |
else if (!strcmp ("other_arch", variable)) |
455 |
{ |
456 |
if (at != NULL && at->clone.other_arch == NULL) |
457 |
{ |
458 |
if ((other = archetype::find (argument)) == NULL) |
459 |
LOG (llevError, "Warning: failed to find other_arch %s\n", argument); |
460 |
else if (at != NULL) |
461 |
at->clone.other_arch = other; |
462 |
} |
463 |
} |
464 |
else if (!strcmp ("randomitems", variable)) |
465 |
{ |
466 |
if (at) |
467 |
{ |
468 |
treasurelist *tl = find_treasurelist (argument); |
469 |
|
470 |
if (tl == NULL) |
471 |
LOG (llevError, "Failed to link treasure to arch (%s): %s\n", &at->name, argument); |
472 |
else |
473 |
at->clone.randomitems = tl; |
474 |
} |
475 |
} |
476 |
} |
477 |
} |
478 |
|
479 |
#ifdef DEBUG |
480 |
void |
481 |
check_generators (void) |
482 |
{ |
483 |
archetype *at; |
484 |
|
485 |
for (at = first_archetype; at != NULL; at = at->next) |
486 |
if (QUERY_FLAG (&at->clone, FLAG_GENERATOR) && at->clone.other_arch == NULL) |
487 |
LOG (llevError, "Warning: %s is generator but lacks other_arch.\n", &at->name); |
488 |
} |
489 |
#endif |
490 |
|
491 |
/* |
492 |
* First initialises the archtype hash-table (init_archetable()). |
493 |
* Reads and parses the archetype file (with the first and second-pass |
494 |
* functions). |
495 |
* Then initialises treasures by calling load_treasures(). |
496 |
*/ |
497 |
|
498 |
void |
499 |
load_archetypes (void) |
500 |
{ |
501 |
char filename[MAX_BUF]; |
502 |
|
503 |
sprintf (filename, "%s/%s", settings.datadir, settings.archetypes); |
504 |
LOG (llevDebug, "Reading archetypes from %s:\n", filename); |
505 |
|
506 |
{ |
507 |
object_thawer f (filename); |
508 |
|
509 |
f.next (); |
510 |
|
511 |
LOG (llevDebug, " arch-pass 1...\n"); |
512 |
if (!first_arch_pass (f)) |
513 |
cleanup ("errors during first arch pass are fatal"); |
514 |
LOG (llevDebug, " done\n"); |
515 |
} |
516 |
|
517 |
init_archetable (); |
518 |
warn_archetypes = 1; |
519 |
|
520 |
{ |
521 |
object_thawer f (filename); |
522 |
|
523 |
LOG (llevDebug, " loading treasure...\n"); |
524 |
load_treasures (); |
525 |
LOG (llevDebug, " done\n"); |
526 |
LOG (llevDebug, " arch-pass 2...\n"); |
527 |
second_arch_pass (f); |
528 |
LOG (llevDebug, " done\n"); |
529 |
#ifdef DEBUG |
530 |
check_generators (); |
531 |
#endif |
532 |
} |
533 |
LOG (llevDebug, " done\n"); |
534 |
} |
535 |
|
536 |
/* |
537 |
* Creates and returns a new object which is a copy of the given archetype. |
538 |
* This function returns NULL on failure. |
539 |
*/ |
540 |
object * |
541 |
arch_to_object (archetype *at) |
542 |
{ |
543 |
if (!at) |
544 |
{ |
545 |
if (warn_archetypes) |
546 |
LOG (llevError, "Couldn't find archetype.\n"); |
547 |
|
548 |
return NULL; |
549 |
} |
550 |
|
551 |
object *op = at->clone.clone (); |
552 |
op->arch = at; |
553 |
op->instantiate (); |
554 |
return op; |
555 |
} |
556 |
|
557 |
/* |
558 |
* Creates an object. This function is called by get_archetype() |
559 |
* if it fails to find the appropriate archetype. |
560 |
* Thus get_archetype() will be guaranteed to always return |
561 |
* an object, and never NULL. |
562 |
*/ |
563 |
object * |
564 |
create_singularity (const char *name) |
565 |
{ |
566 |
object *op; |
567 |
char buf[MAX_BUF]; |
568 |
|
569 |
sprintf (buf, "%s (%s)", ARCH_SINGULARITY, name); |
570 |
op = object::create (); |
571 |
op->name = op->name_pl = buf; |
572 |
SET_FLAG (op, FLAG_NO_PICK); |
573 |
return op; |
574 |
} |
575 |
|
576 |
/* |
577 |
* Finds which archetype matches the given name, and returns a new |
578 |
* object containing a copy of the archetype. |
579 |
*/ |
580 |
object * |
581 |
get_archetype (const char *name) |
582 |
{ |
583 |
archetype *at = archetype::find (name); |
584 |
|
585 |
if (!at) |
586 |
return create_singularity (name); |
587 |
|
588 |
return arch_to_object (at); |
589 |
} |
590 |
|
591 |
/* |
592 |
* Hash-function used by the arch-hashtable. |
593 |
*/ |
594 |
|
595 |
unsigned long |
596 |
hasharch (const char *str, int tablesize) |
597 |
{ |
598 |
unsigned long hash = 0; |
599 |
unsigned int i = 0; |
600 |
const char *p; |
601 |
|
602 |
/* use the one-at-a-time hash function, which supposedly is |
603 |
* better than the djb2-like one used by perl5.005, but |
604 |
* certainly is better then the bug used here before. |
605 |
* see http://burtleburtle.net/bob/hash/doobs.html |
606 |
*/ |
607 |
for (p = str; i < MAXSTRING && *p; p++, i++) |
608 |
{ |
609 |
hash += *p; |
610 |
hash += hash << 10; |
611 |
hash ^= hash >> 6; |
612 |
} |
613 |
|
614 |
hash += hash << 3; |
615 |
hash ^= hash >> 11; |
616 |
hash += hash << 15; |
617 |
|
618 |
return hash % tablesize; |
619 |
} |
620 |
|
621 |
/* |
622 |
* Finds, using the hashtable, which archetype matches the given name. |
623 |
* returns a pointer to the found archetype, otherwise NULL. |
624 |
*/ |
625 |
archetype * |
626 |
archetype::find (const char *name) |
627 |
{ |
628 |
if (!name) |
629 |
return 0; |
630 |
|
631 |
AUTODECL (i, ht.find (name)); |
632 |
|
633 |
if (i == ht.end ()) |
634 |
return 0; |
635 |
else |
636 |
return i->second; |
637 |
} |
638 |
|
639 |
/* |
640 |
* Adds an archetype to the hashtable. |
641 |
*/ |
642 |
void |
643 |
archetype::hash_add () |
644 |
{ |
645 |
ht.insert (std::make_pair (name, this)); |
646 |
} |
647 |
|
648 |
void |
649 |
archetype::hash_del () |
650 |
{ |
651 |
ht.erase (name); |
652 |
} |
653 |
|
654 |
/* |
655 |
* Returns the first archetype using the given type. |
656 |
* Used in treasure-generation. |
657 |
*/ |
658 |
archetype * |
659 |
type_to_archetype (int type) |
660 |
{ |
661 |
archetype *at; |
662 |
|
663 |
for (at = first_archetype; at; at = at->more == 0 ? at->next : at->more) |
664 |
if (at->clone.type == type) |
665 |
return at; |
666 |
|
667 |
return 0; |
668 |
} |
669 |
|
670 |
/* |
671 |
* Returns a new object copied from the first archetype matching |
672 |
* the given type. |
673 |
* Used in treasure-generation. |
674 |
*/ |
675 |
|
676 |
object * |
677 |
clone_arch (int type) |
678 |
{ |
679 |
archetype *at; |
680 |
|
681 |
if ((at = type_to_archetype (type)) == NULL) |
682 |
{ |
683 |
LOG (llevError, "Can't clone archetype %d\n", type); |
684 |
return 0; |
685 |
} |
686 |
|
687 |
object *op = at->clone.clone (); |
688 |
op->instantiate (); |
689 |
return op; |
690 |
} |
691 |
|
692 |
/* |
693 |
* member: make instance from class |
694 |
*/ |
695 |
|
696 |
object * |
697 |
object_create_arch (archetype *at) |
698 |
{ |
699 |
object *op, *prev = 0, *head = 0; |
700 |
|
701 |
while (at) |
702 |
{ |
703 |
op = arch_to_object (at); |
704 |
op->x = at->clone.x; |
705 |
op->y = at->clone.y; |
706 |
|
707 |
if (head) |
708 |
op->head = head, prev->more = op; |
709 |
|
710 |
if (!head) |
711 |
head = op; |
712 |
|
713 |
prev = op; |
714 |
at = at->more; |
715 |
} |
716 |
|
717 |
return (head); |
718 |
} |
719 |
|