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 |
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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 |
11 |
* (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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|
25 |
#include <cassert> |
26 |
|
27 |
#include <global.h> |
28 |
#include <funcpoint.h> |
29 |
#include <loader.h> |
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|
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) |
87 |
{ |
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) |
104 |
{ |
105 |
shstr_cmp skill_cmp (skill); |
106 |
|
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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 |
|
114 |
/* 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 |
119 |
* (eg, skills) |
120 |
*/ |
121 |
archetype * |
122 |
get_archetype_by_type_subtype (int type, int subtype) |
123 |
{ |
124 |
for (archetype *at = first_archetype; at; at = at->next) |
125 |
if ((type == -1 || type == at->clone.type) && (subtype == -1 || subtype == at->clone.subtype)) |
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return at; |
127 |
|
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return 0; |
129 |
} |
130 |
|
131 |
/** |
132 |
* 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"); |
136 |
* Return value: |
137 |
* - a corresponding object if found; a singularity object if not found. |
138 |
* 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 |
*/ |
143 |
object * |
144 |
get_archetype_by_object_name (const char *name) |
145 |
{ |
146 |
char tmpname[MAX_BUF]; |
147 |
int i; |
148 |
|
149 |
assign (tmpname, name); |
150 |
|
151 |
for (i = strlen (tmpname); i > 0; i--) |
152 |
{ |
153 |
tmpname[i] = 0; |
154 |
|
155 |
if (archetype *at = find_archetype_by_object_name (tmpname)) |
156 |
return arch_to_object (at); |
157 |
} |
158 |
|
159 |
return create_singularity (name); |
160 |
} |
161 |
|
162 |
/* 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. |
164 |
* pl is the player (only needed to set count properly) |
165 |
* 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 |
167 |
* (pickup, drop, etc.) Return NONZERO if we have a match. A higher |
168 |
* value means a better match. 0 means no match. |
169 |
* |
170 |
* Brief outline of the procedure: |
171 |
* 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 |
174 |
* player object.) |
175 |
* If count is 1, make a quick check on the name. |
176 |
* IF count is >1, we need to make plural name. Return if match. |
177 |
* Last, make a check on the full name. |
178 |
*/ |
179 |
int |
180 |
item_matched_string (object *pl, object *op, const char *name) |
181 |
{ |
182 |
char *cp, local_name[MAX_BUF]; |
183 |
int count, retval = 0; |
184 |
|
185 |
assign (local_name, name); /* strtok is destructive to name */ |
186 |
|
187 |
for (cp = strtok (local_name, ","); cp; cp = strtok (NULL, ",")) |
188 |
{ |
189 |
while (cp[0] == ' ') |
190 |
++cp; /* get rid of spaces */ |
191 |
|
192 |
/* LOG(llevDebug,"Trying to match %s\n", cp); */ |
193 |
/* All is a very generic match - low match value */ |
194 |
if (!strcmp (cp, "all")) |
195 |
return 1; |
196 |
|
197 |
/* unpaid is a little more specific */ |
198 |
if (!strcmp (cp, "unpaid") && QUERY_FLAG (op, FLAG_UNPAID)) |
199 |
return 2; |
200 |
if (!strcmp (cp, "cursed") && QUERY_FLAG (op, FLAG_KNOWN_CURSED) && (QUERY_FLAG (op, FLAG_CURSED) || QUERY_FLAG (op, FLAG_DAMNED))) |
201 |
return 2; |
202 |
|
203 |
if (!strcmp (cp, "unlocked") && !QUERY_FLAG (op, FLAG_INV_LOCKED)) |
204 |
return 2; |
205 |
|
206 |
/* Allow for things like '100 arrows' */ |
207 |
if ((count = atoi (cp)) != 0) |
208 |
{ |
209 |
cp = strchr (cp, ' '); |
210 |
while (cp && cp[0] == ' ') |
211 |
++cp; /* get rid of spaces */ |
212 |
} |
213 |
else |
214 |
{ |
215 |
if (pl->type == PLAYER) |
216 |
count = pl->contr->count; |
217 |
else |
218 |
count = 0; |
219 |
} |
220 |
|
221 |
if (!cp || cp[0] == '\0' || count < 0) |
222 |
return 0; |
223 |
|
224 |
|
225 |
/* 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 |
*/ |
231 |
if (!strcasecmp (cp, query_name (op))) |
232 |
retval = 20; |
233 |
else if (!strcasecmp (cp, query_short_name (op))) |
234 |
retval = 18; |
235 |
else if (!strcasecmp (cp, query_base_name (op, 0))) |
236 |
retval = 16; |
237 |
else if (!strcasecmp (cp, query_base_name (op, 1))) |
238 |
retval = 16; |
239 |
else if (op->custom_name && !strcasecmp (cp, op->custom_name)) |
240 |
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)) |
251 |
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 |
at->clone.arch = at; |
315 |
|
316 |
at->clone.inv = op->inv; op->inv = 0; |
317 |
|
318 |
op->destroy (); |
319 |
} |
320 |
|
321 |
archetype * |
322 |
archetype::read (object_thawer &f) |
323 |
{ |
324 |
assert (f.kw == KW_object); |
325 |
|
326 |
loading_arch = true; // hack to tell parse_kv et al. to behave |
327 |
|
328 |
typedef std::pair<archetype *, object *> part; |
329 |
std::vector<part> parts; |
330 |
|
331 |
coroapi::cede_to_tick_every (100); |
332 |
|
333 |
for (;;) |
334 |
{ |
335 |
object *op = object::create (); |
336 |
archetype *at = get (f.get_str ()); |
337 |
f.get (op->name); |
338 |
f.next (); |
339 |
|
340 |
if (f.kw == KW_inherit) |
341 |
{ |
342 |
if (archetype *at = find (f.get_str ())) |
343 |
*op = at->clone; |
344 |
else |
345 |
LOG (llevError, "archetype '%s' tries to inherit from non-existent archetype '%s'.\n", |
346 |
&at->name, f.get_str ()); |
347 |
|
348 |
f.next (); |
349 |
} |
350 |
|
351 |
if (!op->parse_kv (f)) |
352 |
goto fail; |
353 |
|
354 |
parts.push_back (std::make_pair (at, op)); |
355 |
|
356 |
if (f.kw != KW_more) |
357 |
break; |
358 |
|
359 |
f.next (); |
360 |
|
361 |
if (f.kw != KW_object) |
362 |
{ |
363 |
f.parse_error ("more object"); |
364 |
goto fail; |
365 |
} |
366 |
} |
367 |
|
368 |
{ |
369 |
archetype *head = parts.front ().first; |
370 |
|
371 |
// check that all archetypes belong to the same object or are heads |
372 |
for (auto (p, parts.begin ()); p != parts.end (); ++p) |
373 |
{ |
374 |
archetype *at = p->first; |
375 |
|
376 |
if (at->head != head && at->head) |
377 |
{ |
378 |
LOG (llevError, "%s: unable to overwrite foreign non-head archetype with non-head archetype\n", &at->name); |
379 |
goto fail; |
380 |
} |
381 |
|
382 |
if (at->next && at != head) |
383 |
{ |
384 |
LOG (llevError, "%s: unable to overwrite foreign head archetype with non-head archetype\n", &at->name); |
385 |
goto fail; |
386 |
} |
387 |
} |
388 |
|
389 |
// sever chain of existing head object |
390 |
for (archetype *more, *at = head; at; at = more) |
391 |
{ |
392 |
more = at->more; |
393 |
|
394 |
at->head = 0; |
395 |
at->more = 0; |
396 |
} |
397 |
|
398 |
// replace/update head |
399 |
overwrite (head, parts.front ().second); |
400 |
head->tail_x = 0; |
401 |
head->tail_y = 0; |
402 |
|
403 |
// link into list of heads, if not already there |
404 |
if (!head->linked) |
405 |
{ |
406 |
head->linked = true; |
407 |
head->next = first_archetype; |
408 |
first_archetype = head; |
409 |
} |
410 |
|
411 |
// reassemble new chain |
412 |
archetype *prev = head; |
413 |
for (auto (p, parts.begin () + 1); p != parts.end (); ++p) |
414 |
{ |
415 |
archetype *at = p->first; |
416 |
overwrite (at, p->second); |
417 |
|
418 |
if (at->clone.x > head->tail_x) head->tail_x = at->clone.x; |
419 |
if (at->clone.y > head->tail_y) head->tail_y = at->clone.y; |
420 |
|
421 |
at->head = head; |
422 |
at->clone.head = &head->clone; |
423 |
prev->more = at; |
424 |
prev->clone.more = &at->clone; |
425 |
|
426 |
prev = at; |
427 |
} |
428 |
|
429 |
loading_arch = false; |
430 |
return head; |
431 |
} |
432 |
|
433 |
fail: |
434 |
for (auto (p, parts.begin ()); p != parts.end (); ++p) |
435 |
p->second->destroy (true); |
436 |
|
437 |
loading_arch = false; |
438 |
return 0; |
439 |
} |
440 |
|
441 |
/* |
442 |
* Initialize global archtype pointers: |
443 |
*/ |
444 |
void |
445 |
init_archetype_pointers () |
446 |
{ |
447 |
ring_arch = archetype::find ("ring"); |
448 |
amulet_arch = archetype::find ("amulet"); |
449 |
staff_arch = archetype::find ("staff"); |
450 |
crown_arch = archetype::find ("crown"); |
451 |
empty_archetype = archetype::find ("empty_archetype"); |
452 |
} |
453 |
|
454 |
/* |
455 |
* Creates and returns a new object which is a copy of the given archetype. |
456 |
* This function returns NULL on failure. |
457 |
*/ |
458 |
object * |
459 |
arch_to_object (archetype *at) |
460 |
{ |
461 |
if (!at) |
462 |
{ |
463 |
LOG (llevError, "Couldn't find archetype.\n"); |
464 |
return 0; |
465 |
} |
466 |
|
467 |
object *op = at->clone.clone (); |
468 |
op->arch = at; |
469 |
op->instantiate (); |
470 |
|
471 |
return op; |
472 |
} |
473 |
|
474 |
/* |
475 |
* Creates an object. This function is called by get_archetype() |
476 |
* if it fails to find the appropriate archetype. |
477 |
* Thus get_archetype() will be guaranteed to always return |
478 |
* an object, and never NULL. |
479 |
*/ |
480 |
object * |
481 |
create_singularity (const char *name) |
482 |
{ |
483 |
object *op; |
484 |
char buf[MAX_BUF]; |
485 |
|
486 |
sprintf (buf, "%s (%s)", ARCH_SINGULARITY, name); |
487 |
op = object::create (); |
488 |
op->name = op->name_pl = buf; |
489 |
SET_FLAG (op, FLAG_NO_PICK); |
490 |
return op; |
491 |
} |
492 |
|
493 |
/* |
494 |
* Finds which archetype matches the given name, and returns a new |
495 |
* object containing a copy of the archetype. |
496 |
*/ |
497 |
object * |
498 |
get_archetype (const char *name) |
499 |
{ |
500 |
archetype *at = archetype::find (name); |
501 |
|
502 |
if (!at) |
503 |
return create_singularity (name); |
504 |
|
505 |
return arch_to_object (at); |
506 |
} |
507 |
|
508 |
/* |
509 |
* Finds, using the hashtable, which archetype matches the given name. |
510 |
* returns a pointer to the found archetype, otherwise NULL. |
511 |
*/ |
512 |
archetype * |
513 |
archetype::find (const char *name) |
514 |
{ |
515 |
if (!name) |
516 |
return 0; |
517 |
|
518 |
auto (i, ht.find (name)); |
519 |
|
520 |
if (i == ht.end ()) |
521 |
return 0; |
522 |
else |
523 |
return i->second; |
524 |
} |
525 |
|
526 |
archetype * |
527 |
archetype::get (const char *name) |
528 |
{ |
529 |
archetype *at = find (name); |
530 |
|
531 |
if (!at) |
532 |
{ |
533 |
archetypes.push_back (at = new archetype); |
534 |
at->name = name; |
535 |
at->hash_add (); |
536 |
} |
537 |
|
538 |
return at; |
539 |
} |
540 |
|
541 |
/* |
542 |
* Adds an archetype to the hashtable. |
543 |
*/ |
544 |
void |
545 |
archetype::hash_add () |
546 |
{ |
547 |
ht.insert (std::make_pair (name, this)); |
548 |
} |
549 |
|
550 |
void |
551 |
archetype::hash_del () |
552 |
{ |
553 |
ht.erase (name); |
554 |
} |
555 |
|
556 |
/* |
557 |
* Returns the first archetype using the given type. |
558 |
* Used in treasure-generation. |
559 |
*/ |
560 |
archetype * |
561 |
type_to_archetype (int type) |
562 |
{ |
563 |
for (archetype *at = first_archetype; at; at = at->more == 0 ? at->next : at->more) |
564 |
if (at->clone.type == type) |
565 |
return at; |
566 |
|
567 |
return 0; |
568 |
} |
569 |
|
570 |
/* |
571 |
* Returns a new object copied from the first archetype matching |
572 |
* the given type. |
573 |
* Used in treasure-generation. |
574 |
*/ |
575 |
object * |
576 |
clone_arch (int type) |
577 |
{ |
578 |
archetype *at; |
579 |
|
580 |
if ((at = type_to_archetype (type)) == NULL) |
581 |
{ |
582 |
LOG (llevError, "Can't clone archetype %d\n", type); |
583 |
return 0; |
584 |
} |
585 |
|
586 |
object *op = at->clone.clone (); |
587 |
op->instantiate (); |
588 |
return op; |
589 |
} |
590 |
|
591 |
/* |
592 |
* member: make instance from class |
593 |
*/ |
594 |
|
595 |
object * |
596 |
object_create_arch (archetype *at) |
597 |
{ |
598 |
object *op, *prev = 0, *head = 0; |
599 |
|
600 |
while (at) |
601 |
{ |
602 |
op = arch_to_object (at); |
603 |
op->x = at->clone.x; |
604 |
op->y = at->clone.y; |
605 |
|
606 |
if (head) |
607 |
op->head = head, prev->more = op; |
608 |
|
609 |
if (!head) |
610 |
head = op; |
611 |
|
612 |
prev = op; |
613 |
at = at->more; |
614 |
} |
615 |
|
616 |
return (head); |
617 |
} |
618 |
|