| 1 |
/* |
| 2 |
* CrossFire, A Multiplayer game for X-windows |
| 3 |
* |
| 4 |
* Copyright (C) 2005, 2006, 2007 Marc Lehmann & Crossfire+ Development Team |
| 5 |
* Copyright (C) 2002 Mark Wedel & Crossfire Development Team |
| 6 |
* Copyright (C) 1992 Frank Tore Johansen |
| 7 |
* |
| 8 |
* This program is free software; you can redistribute it and/or modify |
| 9 |
* it under the terms of the GNU General Public License as published by |
| 10 |
* the Free Software Foundation; either version 2 of the License, or |
| 11 |
* (at your option) any later version. |
| 12 |
* |
| 13 |
* This program is distributed in the hope that it will be useful, |
| 14 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 |
* GNU General Public License for more details. |
| 17 |
* |
| 18 |
* You should have received a copy of the GNU General Public License |
| 19 |
* along with this program; if not, write to the Free Software |
| 20 |
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| 21 |
* |
| 22 |
* The authors can be reached via e-mail at <crossfire@schmorp.de> |
| 23 |
*/ |
| 24 |
|
| 25 |
#include <cassert> |
| 26 |
|
| 27 |
#include <global.h> |
| 28 |
#include <funcpoint.h> |
| 29 |
#include <loader.h> |
| 30 |
|
| 31 |
#include <tr1/functional> |
| 32 |
#include <tr1/unordered_map> |
| 33 |
|
| 34 |
/* The naming of these functions is really poor - they are all |
| 35 |
* pretty much named '.._arch_...', but they may more may not |
| 36 |
* return archetypes. Some make the arch_to_object call, and thus |
| 37 |
* return an object. Perhaps those should be called 'archob' functions |
| 38 |
* to denote they return an object derived from the archetype. |
| 39 |
* MSW 2003-04-29 |
| 40 |
*/ |
| 41 |
|
| 42 |
bool loading_arch; // ugly flag to object laoder etc. to suppress/request special processing |
| 43 |
|
| 44 |
// the hashtable |
| 45 |
typedef std::tr1::unordered_map |
| 46 |
< |
| 47 |
const char *, |
| 48 |
arch_ptr, |
| 49 |
str_hash, |
| 50 |
str_equal, |
| 51 |
slice_allocator< std::pair<const char *const, arch_ptr> > |
| 52 |
> HT; |
| 53 |
|
| 54 |
static HT ht (5000); |
| 55 |
static std::vector<archetype *> archetypes; |
| 56 |
|
| 57 |
/** |
| 58 |
* GROS - This function retrieves an archetype given the name that appears |
| 59 |
* during the game (for example, "writing pen" instead of "stylus"). |
| 60 |
* It does not use the hashtable system, but browse the whole archlist each time. |
| 61 |
* I suggest not to use it unless you really need it because of performance issue. |
| 62 |
* It is currently used by scripting extensions (create-object). |
| 63 |
* Params: |
| 64 |
* - name: the name we're searching for (ex: "writing pen"); |
| 65 |
* Return value: |
| 66 |
* - the archetype found or null if nothing was found. |
| 67 |
*/ |
| 68 |
archetype * |
| 69 |
find_archetype_by_object_name (const char *name) |
| 70 |
{ |
| 71 |
shstr_cmp name_cmp (name); |
| 72 |
|
| 73 |
for (archetype *at = first_archetype; at; at = at->next) |
| 74 |
if (at->clone.name == name_cmp) |
| 75 |
return at; |
| 76 |
|
| 77 |
return 0; |
| 78 |
} |
| 79 |
|
| 80 |
/** |
| 81 |
* This function retrieves an archetype by type and name that appears during |
| 82 |
* the game. It is basically the same as find_archetype_by_object_name() |
| 83 |
* except that it considers only items of the given type. |
| 84 |
*/ |
| 85 |
archetype * |
| 86 |
find_archetype_by_object_type_name (int type, const char *name) |
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{ |
| 88 |
shstr_cmp name_cmp (name); |
| 89 |
|
| 90 |
for (archetype *at = first_archetype; at; at = at->next) |
| 91 |
if (at->clone.name == name_cmp && at->clone.type == type) |
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return at; |
| 93 |
|
| 94 |
return 0; |
| 95 |
} |
| 96 |
|
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/* This is a lot like the above function. Instead, we are trying to match |
| 98 |
* the arch->skill values. type is the type of object to match |
| 99 |
* against (eg, to only match against skills or only skill objects for example). |
| 100 |
* If type is -1, ew don't match on type. |
| 101 |
*/ |
| 102 |
object * |
| 103 |
get_archetype_by_skill_name (const char *skill, int type) |
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{ |
| 105 |
shstr_cmp skill_cmp (skill); |
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|
| 107 |
for (archetype *at = first_archetype; at; at = at->next) |
| 108 |
if (at->clone.skill == skill_cmp && (type == -1 || type == at->clone.type)) |
| 109 |
return arch_to_object (at); |
| 110 |
|
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return 0; |
| 112 |
} |
| 113 |
|
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/* similiar to above - this returns the first archetype |
| 115 |
* that matches both the type and subtype. type and subtype |
| 116 |
* can be -1 to say ignore, but in this case, the match it does |
| 117 |
* may not be very useful. This function is most useful when |
| 118 |
* 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 * |
| 122 |
get_archetype_by_type_subtype (int type, int subtype) |
| 123 |
{ |
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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; |
| 129 |
} |
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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 |
| 133 |
* (for example, "writing pen" instead of "stylus"). |
| 134 |
* Params: |
| 135 |
* - name: The name we're searching for (ex: "writing pen"); |
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* Return value: |
| 137 |
* - 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 |
| 139 |
* shortening it until it finds a match. I re-wrote this so that it |
| 140 |
* doesn't malloc it each time - not that this function is used much, |
| 141 |
* but it otherwise had a big memory leak. |
| 142 |
*/ |
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object * |
| 144 |
get_archetype_by_object_name (const char *name) |
| 145 |
{ |
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char tmpname[MAX_BUF]; |
| 147 |
int i; |
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|
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assign (tmpname, name); |
| 150 |
|
| 151 |
for (i = strlen (tmpname); i > 0; i--) |
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{ |
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tmpname[i] = 0; |
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|
| 155 |
if (archetype *at = find_archetype_by_object_name (tmpname)) |
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return arch_to_object (at); |
| 157 |
} |
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|
| 159 |
return create_singularity (name); |
| 160 |
} |
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|
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/* This is a subset of the parse_id command. Basically, name can be |
| 163 |
* a string seperated lists of things to match, with certain keywords. |
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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 |
| 166 |
* 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 |
| 168 |
* 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. |
| 172 |
* cases for 'all' and unpaid are pretty obvious. |
| 173 |
* Next, we check for a count (either specified in name, or in the |
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* player object.) |
| 175 |
* 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. |
| 178 |
*/ |
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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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{ |
| 189 |
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; |
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|
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|
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/* The code here should go from highest retval to lowest. That |
| 226 |
* is because of the 'else' handling - we don't want to match on |
| 227 |
* something and set a low retval, even though it may match a higher retcal |
| 228 |
* later. So keep it in descending order here, so we try for the best |
| 229 |
* match first, and work downward. |
| 230 |
*/ |
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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; |
| 235 |
else if (!strcasecmp (cp, query_base_name (op, 0))) |
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retval = 16; |
| 237 |
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; |
| 241 |
else if (!strncasecmp (cp, query_base_name (op, 0), strlen (cp))) |
| 242 |
retval = 14; |
| 243 |
else if (!strncasecmp (cp, query_base_name (op, 1), strlen (cp))) |
| 244 |
retval = 14; |
| 245 |
/* Do substring checks, so things like 'Str+1' will match. |
| 246 |
* retval of these should perhaps be lower - they are lower |
| 247 |
* then the specific strcasecmp aboves, but still higher than |
| 248 |
* some other match criteria. |
| 249 |
*/ |
| 250 |
else if (strstr (query_base_name (op, 1), cp)) |
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retval = 12; |
| 252 |
else if (strstr (query_base_name (op, 0), cp)) |
| 253 |
retval = 12; |
| 254 |
else if (strstr (query_short_name (op), cp)) |
| 255 |
retval = 12; |
| 256 |
/* Check against plural/non plural based on count. */ |
| 257 |
else if (count > 1 && !strcasecmp (cp, op->name_pl)) |
| 258 |
retval = 6; |
| 259 |
else if (count == 1 && !strcasecmp (op->name, cp)) |
| 260 |
retval = 6; |
| 261 |
/* base name matched - not bad */ |
| 262 |
else if (strcasecmp (cp, op->name) == 0 && !count) |
| 263 |
retval = 4; |
| 264 |
/* Check for partial custom name, but give a real low priority */ |
| 265 |
else if (op->custom_name && strstr (op->custom_name, cp)) |
| 266 |
retval = 3; |
| 267 |
|
| 268 |
if (retval) |
| 269 |
{ |
| 270 |
if (pl->type == PLAYER) |
| 271 |
pl->contr->count = count; |
| 272 |
|
| 273 |
return retval; |
| 274 |
} |
| 275 |
} |
| 276 |
|
| 277 |
return 0; |
| 278 |
} |
| 279 |
|
| 280 |
archetype::archetype () |
| 281 |
{ |
| 282 |
clone.arch = this; |
| 283 |
|
| 284 |
CLEAR_FLAG (&clone, FLAG_FREED); /* This shouldn't matter, since copy_to */ |
| 285 |
SET_FLAG (&clone, FLAG_REMOVED); /* doesn't copy these flags... */ |
| 286 |
} |
| 287 |
|
| 288 |
archetype::~archetype () |
| 289 |
{ |
| 290 |
//TODO: nuke ->more's |
| 291 |
} |
| 292 |
|
| 293 |
static void |
| 294 |
unlink (archetype *at) |
| 295 |
{ |
| 296 |
if (at->head) |
| 297 |
at = at->head; |
| 298 |
|
| 299 |
// destroy this archetype's link, making singletons out of its parts |
| 300 |
while (at) |
| 301 |
{ |
| 302 |
archetype *more = at->more; |
| 303 |
at->clone.destroy_inv (); |
| 304 |
at->head = at->more = 0; |
| 305 |
at = more; |
| 306 |
} |
| 307 |
} |
| 308 |
|
| 309 |
// dire hack, need to rationalise |
| 310 |
void |
| 311 |
overwrite (archetype *at, object *op) |
| 312 |
{ |
| 313 |
at->clone = *op; |
| 314 |
|
| 315 |
at->clone.arch = at; |
| 316 |
//TODO: inv et al. |
| 317 |
} |
| 318 |
|
| 319 |
archetype * |
| 320 |
archetype::read (object_thawer &f) |
| 321 |
{ |
| 322 |
assert (f.kw == KW_object); |
| 323 |
|
| 324 |
archetype *head = get (f.get_str ()); |
| 325 |
unlink (head); |
| 326 |
object *op = object::create (); |
| 327 |
|
| 328 |
if (!op->parse_kv (f)) |
| 329 |
{ |
| 330 |
op->destroy (true); |
| 331 |
// leak head |
| 332 |
return 0; |
| 333 |
} |
| 334 |
|
| 335 |
overwrite (head, op); |
| 336 |
op->destroy (); |
| 337 |
|
| 338 |
for (archetype *prev = head; f.kw == KW_more; ) |
| 339 |
{ |
| 340 |
f.next (); |
| 341 |
assert (f.kw == KW_object); |
| 342 |
|
| 343 |
archetype *more = get (f.get_str ()); |
| 344 |
unlink (more); |
| 345 |
object *op = object::create (); |
| 346 |
|
| 347 |
if (!op->parse_kv (f)) |
| 348 |
{ |
| 349 |
op->destroy (true); |
| 350 |
// leak head more* |
| 351 |
return 0; |
| 352 |
} |
| 353 |
|
| 354 |
overwrite (more, op); |
| 355 |
op->destroy (); |
| 356 |
|
| 357 |
if (more->clone.x > head->tail_x) head->tail_x = more->clone.x; |
| 358 |
if (more->clone.y > head->tail_y) head->tail_y = more->clone.y; |
| 359 |
|
| 360 |
more->head = head; |
| 361 |
more->clone.head = &head->clone; |
| 362 |
prev->more = more; |
| 363 |
prev->clone.more = &more->clone; |
| 364 |
|
| 365 |
prev = more; |
| 366 |
} |
| 367 |
|
| 368 |
if (!head->next) |
| 369 |
{ |
| 370 |
head->next = first_archetype; |
| 371 |
first_archetype = head; |
| 372 |
} |
| 373 |
|
| 374 |
return head; |
| 375 |
} |
| 376 |
|
| 377 |
/* |
| 378 |
* Reads/parses the archetype-file, and copies into a linked list |
| 379 |
* of archetype-structures. |
| 380 |
*/ |
| 381 |
static bool |
| 382 |
load_archetypes (object_thawer &f) |
| 383 |
{ |
| 384 |
for (;;) |
| 385 |
{ |
| 386 |
switch (f.kw) |
| 387 |
{ |
| 388 |
case KW_object: |
| 389 |
loading_arch = true; |
| 390 |
if (!archetype::read (f)) |
| 391 |
{ |
| 392 |
loading_arch = false; |
| 393 |
return false; |
| 394 |
} |
| 395 |
|
| 396 |
loading_arch = false; |
| 397 |
continue; |
| 398 |
|
| 399 |
case KW_EOF: |
| 400 |
return true; |
| 401 |
|
| 402 |
default: |
| 403 |
if (!f.parse_error ("archetypes file")) |
| 404 |
return false; |
| 405 |
} |
| 406 |
|
| 407 |
f.next (); |
| 408 |
} |
| 409 |
} |
| 410 |
|
| 411 |
/* |
| 412 |
* First initialises the archtype hash-table (init_archetable()). |
| 413 |
* Reads and parses the archetype file (with the first and second-pass |
| 414 |
* functions). |
| 415 |
*/ |
| 416 |
bool |
| 417 |
load_archetype_file (const char *filename) |
| 418 |
{ |
| 419 |
object_thawer f (filename); |
| 420 |
|
| 421 |
f.next (); |
| 422 |
|
| 423 |
// make sure the next - long - step is only done after a tick |
| 424 |
coroapi::wait_for_tick_begin (); |
| 425 |
|
| 426 |
if (!load_archetypes (f)) |
| 427 |
return false; |
| 428 |
|
| 429 |
warn_archetypes = 1; |
| 430 |
|
| 431 |
empty_archetype = archetype::find ("empty_archetype"); |
| 432 |
if (!empty_archetype) |
| 433 |
return false; |
| 434 |
|
| 435 |
coroapi::cede (); |
| 436 |
|
| 437 |
return true; |
| 438 |
} |
| 439 |
|
| 440 |
/* |
| 441 |
* Creates and returns a new object which is a copy of the given archetype. |
| 442 |
* This function returns NULL on failure. |
| 443 |
*/ |
| 444 |
object * |
| 445 |
arch_to_object (archetype *at) |
| 446 |
{ |
| 447 |
if (!at) |
| 448 |
{ |
| 449 |
if (warn_archetypes) |
| 450 |
LOG (llevError, "Couldn't find archetype.\n"); |
| 451 |
|
| 452 |
return NULL; |
| 453 |
} |
| 454 |
|
| 455 |
object *op = at->clone.clone (); |
| 456 |
op->arch = at; |
| 457 |
op->instantiate (); |
| 458 |
return op; |
| 459 |
} |
| 460 |
|
| 461 |
/* |
| 462 |
* Creates an object. This function is called by get_archetype() |
| 463 |
* if it fails to find the appropriate archetype. |
| 464 |
* Thus get_archetype() will be guaranteed to always return |
| 465 |
* an object, and never NULL. |
| 466 |
*/ |
| 467 |
object * |
| 468 |
create_singularity (const char *name) |
| 469 |
{ |
| 470 |
object *op; |
| 471 |
char buf[MAX_BUF]; |
| 472 |
|
| 473 |
sprintf (buf, "%s (%s)", ARCH_SINGULARITY, name); |
| 474 |
op = object::create (); |
| 475 |
op->name = op->name_pl = buf; |
| 476 |
SET_FLAG (op, FLAG_NO_PICK); |
| 477 |
return op; |
| 478 |
} |
| 479 |
|
| 480 |
/* |
| 481 |
* Finds which archetype matches the given name, and returns a new |
| 482 |
* object containing a copy of the archetype. |
| 483 |
*/ |
| 484 |
object * |
| 485 |
get_archetype (const char *name) |
| 486 |
{ |
| 487 |
archetype *at = archetype::find (name); |
| 488 |
|
| 489 |
if (!at) |
| 490 |
return create_singularity (name); |
| 491 |
|
| 492 |
return arch_to_object (at); |
| 493 |
} |
| 494 |
|
| 495 |
/* |
| 496 |
* Hash-function used by the arch-hashtable. |
| 497 |
*/ |
| 498 |
|
| 499 |
unsigned long |
| 500 |
hasharch (const char *str, int tablesize) |
| 501 |
{ |
| 502 |
unsigned long hash = 0; |
| 503 |
unsigned int i = 0; |
| 504 |
const char *p; |
| 505 |
|
| 506 |
/* use the one-at-a-time hash function, which supposedly is |
| 507 |
* better than the djb2-like one used by perl5.005, but |
| 508 |
* certainly is better then the bug used here before. |
| 509 |
* see http://burtleburtle.net/bob/hash/doobs.html |
| 510 |
*/ |
| 511 |
for (p = str; i < MAXSTRING && *p; p++, i++) |
| 512 |
{ |
| 513 |
hash += *p; |
| 514 |
hash += hash << 10; |
| 515 |
hash ^= hash >> 6; |
| 516 |
} |
| 517 |
|
| 518 |
hash += hash << 3; |
| 519 |
hash ^= hash >> 11; |
| 520 |
hash += hash << 15; |
| 521 |
|
| 522 |
return hash % tablesize; |
| 523 |
} |
| 524 |
|
| 525 |
/* |
| 526 |
* Finds, using the hashtable, which archetype matches the given name. |
| 527 |
* returns a pointer to the found archetype, otherwise NULL. |
| 528 |
*/ |
| 529 |
archetype * |
| 530 |
archetype::find (const char *name) |
| 531 |
{ |
| 532 |
if (!name) |
| 533 |
return 0; |
| 534 |
|
| 535 |
AUTODECL (i, ht.find (name)); |
| 536 |
|
| 537 |
if (i == ht.end ()) |
| 538 |
return 0; |
| 539 |
else |
| 540 |
return i->second; |
| 541 |
} |
| 542 |
|
| 543 |
archetype * |
| 544 |
archetype::get (const char *name) |
| 545 |
{ |
| 546 |
archetype *at = find (name); |
| 547 |
|
| 548 |
if (!at) |
| 549 |
{ |
| 550 |
archetypes.push_back (at = new archetype); |
| 551 |
at->name = name; |
| 552 |
at->hash_add (); |
| 553 |
} |
| 554 |
|
| 555 |
return at; |
| 556 |
} |
| 557 |
|
| 558 |
/* |
| 559 |
* Adds an archetype to the hashtable. |
| 560 |
*/ |
| 561 |
void |
| 562 |
archetype::hash_add () |
| 563 |
{ |
| 564 |
ht.insert (std::make_pair (name, this)); |
| 565 |
} |
| 566 |
|
| 567 |
void |
| 568 |
archetype::hash_del () |
| 569 |
{ |
| 570 |
ht.erase (name); |
| 571 |
} |
| 572 |
|
| 573 |
/* |
| 574 |
* Returns the first archetype using the given type. |
| 575 |
* Used in treasure-generation. |
| 576 |
*/ |
| 577 |
archetype * |
| 578 |
type_to_archetype (int type) |
| 579 |
{ |
| 580 |
for (archetype *at = first_archetype; at; at = at->more == 0 ? at->next : at->more) |
| 581 |
if (at->clone.type == type) |
| 582 |
return at; |
| 583 |
|
| 584 |
return 0; |
| 585 |
} |
| 586 |
|
| 587 |
/* |
| 588 |
* Returns a new object copied from the first archetype matching |
| 589 |
* the given type. |
| 590 |
* Used in treasure-generation. |
| 591 |
*/ |
| 592 |
object * |
| 593 |
clone_arch (int type) |
| 594 |
{ |
| 595 |
archetype *at; |
| 596 |
|
| 597 |
if ((at = type_to_archetype (type)) == NULL) |
| 598 |
{ |
| 599 |
LOG (llevError, "Can't clone archetype %d\n", type); |
| 600 |
return 0; |
| 601 |
} |
| 602 |
|
| 603 |
object *op = at->clone.clone (); |
| 604 |
op->instantiate (); |
| 605 |
return op; |
| 606 |
} |
| 607 |
|
| 608 |
/* |
| 609 |
* member: make instance from class |
| 610 |
*/ |
| 611 |
|
| 612 |
object * |
| 613 |
object_create_arch (archetype *at) |
| 614 |
{ |
| 615 |
object *op, *prev = 0, *head = 0; |
| 616 |
|
| 617 |
while (at) |
| 618 |
{ |
| 619 |
op = arch_to_object (at); |
| 620 |
op->x = at->clone.x; |
| 621 |
op->y = at->clone.y; |
| 622 |
|
| 623 |
if (head) |
| 624 |
op->head = head, prev->more = op; |
| 625 |
|
| 626 |
if (!head) |
| 627 |
head = op; |
| 628 |
|
| 629 |
prev = op; |
| 630 |
at = at->more; |
| 631 |
} |
| 632 |
|
| 633 |
return (head); |
| 634 |
} |
| 635 |
|
