1 |
/* |
2 |
* This file is part of Deliantra, the Roguelike Realtime MMORPG. |
3 |
* |
4 |
* Copyright (©) 2005,2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team |
5 |
* Copyright (©) 2002,2007 Mark Wedel & Crossfire Development Team |
6 |
* Copyright (©) 1992,2007 Frank Tore Johansen |
7 |
* |
8 |
* Deliantra 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 3 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 |
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* GNU General Public License for more details. |
17 |
* |
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* You should have received a copy of the GNU General Public License |
19 |
* along with this program. If not, see <http://www.gnu.org/licenses/>. |
20 |
* |
21 |
* The authors can be reached via e-mail to <support@deliantra.net> |
22 |
*/ |
23 |
|
24 |
#include <cassert> |
25 |
|
26 |
#include <global.h> |
27 |
#include <funcpoint.h> |
28 |
#include <loader.h> |
29 |
|
30 |
#include <tr1/functional> |
31 |
#include <tr1/unordered_map> |
32 |
|
33 |
archetype *loading_arch; // ugly flag to object laoder etc. to suppress/request special processing |
34 |
archetype *archetype::empty; |
35 |
|
36 |
// the hashtable |
37 |
typedef std::tr1::unordered_map |
38 |
< |
39 |
const char *, |
40 |
arch_ptr, |
41 |
str_hash, |
42 |
str_equal, |
43 |
slice_allocator< std::pair<const char *const, arch_ptr> > |
44 |
> HT; |
45 |
|
46 |
static HT ht (5000); |
47 |
archvec archetypes; |
48 |
|
49 |
// the vector of other_arch references to be resolved |
50 |
static std::vector< std::pair<arch_ptr *, shstr> > postponed_arch_ref; |
51 |
// the vector of loaded but not yet committed archetypes |
52 |
static std::vector<archetype *> postponed_arch; |
53 |
|
54 |
/** |
55 |
* GROS - This function retrieves an archetype given the name that appears |
56 |
* during the game (for example, "writing pen" instead of "stylus"). |
57 |
* It does not use the hashtable system, but browse the whole archlist each time. |
58 |
* I suggest not to use it unless you really need it because of performance issue. |
59 |
* It is currently used by scripting extensions (create-object). |
60 |
* Params: |
61 |
* - name: the name we're searching for (ex: "writing pen"); |
62 |
* Return value: |
63 |
* - the archetype found or null if nothing was found. |
64 |
*/ |
65 |
archetype * |
66 |
find_archetype_by_object_name (const char *name) |
67 |
{ |
68 |
shstr_cmp name_cmp (name); |
69 |
|
70 |
for_all_archetypes (at) |
71 |
if (at->name == name_cmp) |
72 |
return at; |
73 |
|
74 |
return 0; |
75 |
} |
76 |
|
77 |
/** |
78 |
* This function retrieves an archetype by type and name that appears during |
79 |
* the game. It is basically the same as find_archetype_by_object_name() |
80 |
* except that it considers only items of the given type. |
81 |
*/ |
82 |
archetype * |
83 |
find_archetype_by_object_type_name (int type, const char *name) |
84 |
{ |
85 |
shstr_cmp name_cmp (name); |
86 |
|
87 |
for_all_archetypes (at) |
88 |
if (at->name == name_cmp && at->type == type) |
89 |
return at; |
90 |
|
91 |
return 0; |
92 |
} |
93 |
|
94 |
/* This is a lot like the above function. Instead, we are trying to match |
95 |
* the arch->skill values. type is the type of object to match |
96 |
* against (eg, to only match against skills or only skill objects for example). |
97 |
* If type is -1, ew don't match on type. |
98 |
*/ |
99 |
object * |
100 |
get_archetype_by_skill_name (const char *skill, int type) |
101 |
{ |
102 |
shstr_cmp skill_cmp (skill); |
103 |
|
104 |
for_all_archetypes (at) |
105 |
if (at->skill == skill_cmp && (type == -1 || type == at->type)) |
106 |
return arch_to_object (at); |
107 |
|
108 |
return 0; |
109 |
} |
110 |
|
111 |
/* similiar to above - this returns the first archetype |
112 |
* that matches both the type and subtype. type and subtype |
113 |
* can be -1 to say ignore, but in this case, the match it does |
114 |
* may not be very useful. This function is most useful when |
115 |
* subtypes are known to be unique for a particular type |
116 |
* (eg, skills) |
117 |
*/ |
118 |
archetype * |
119 |
get_archetype_by_type_subtype (int type, int subtype) |
120 |
{ |
121 |
for_all_archetypes (at) |
122 |
if ((type == -1 || type == at->type) && (subtype == -1 || subtype == at->subtype)) |
123 |
return at; |
124 |
|
125 |
return 0; |
126 |
} |
127 |
|
128 |
/** |
129 |
* GROS - this returns a new object given the name that appears during the game |
130 |
* (for example, "writing pen" instead of "stylus"). |
131 |
* Params: |
132 |
* - name: The name we're searching for (ex: "writing pen"); |
133 |
* Return value: |
134 |
* - a corresponding object if found; a singularity object if not found. |
135 |
* Note by MSW - it appears that it takes the full name and keeps |
136 |
* shortening it until it finds a match. I re-wrote this so that it |
137 |
* doesn't malloc it each time - not that this function is used much, |
138 |
* but it otherwise had a big memory leak. |
139 |
*/ |
140 |
object * |
141 |
get_archetype_by_object_name (const char *name) |
142 |
{ |
143 |
char tmpname[MAX_BUF]; |
144 |
int i; |
145 |
|
146 |
assign (tmpname, name); |
147 |
|
148 |
for (i = strlen (tmpname); i > 0; i--) |
149 |
{ |
150 |
tmpname[i] = 0; |
151 |
|
152 |
if (archetype *at = find_archetype_by_object_name (tmpname)) |
153 |
return arch_to_object (at); |
154 |
} |
155 |
|
156 |
return create_singularity (name); |
157 |
} |
158 |
|
159 |
/* This is a subset of the parse_id command. Basically, name can be |
160 |
* a string seperated lists of things to match, with certain keywords. |
161 |
* pl is the player (only needed to set count properly) |
162 |
* op is the item we are trying to match. Calling function takes care |
163 |
* of what action might need to be done and if it is valid |
164 |
* (pickup, drop, etc.) Return NONZERO if we have a match. A higher |
165 |
* value means a better match. 0 means no match. |
166 |
* |
167 |
* Brief outline of the procedure: |
168 |
* We take apart the name variable into the individual components. |
169 |
* cases for 'all' and unpaid are pretty obvious. |
170 |
* Next, we check for a count (either specified in name, or in the |
171 |
* player object.) |
172 |
* If count is 1, make a quick check on the name. |
173 |
* IF count is >1, we need to make plural name. Return if match. |
174 |
* Last, make a check on the full name. |
175 |
*/ |
176 |
int |
177 |
item_matched_string (object *pl, object *op, const char *name) |
178 |
{ |
179 |
char *cp, local_name[MAX_BUF]; |
180 |
int count, retval = 0; |
181 |
|
182 |
assign (local_name, name); /* strtok is destructive to name */ |
183 |
|
184 |
for (cp = strtok (local_name, ","); cp; cp = strtok (NULL, ",")) |
185 |
{ |
186 |
while (cp[0] == ' ') |
187 |
++cp; /* get rid of spaces */ |
188 |
|
189 |
/* LOG(llevDebug,"Trying to match %s\n", cp); */ |
190 |
/* All is a very generic match - low match value */ |
191 |
if (!strcmp (cp, "all")) |
192 |
return 1; |
193 |
|
194 |
/* unpaid is a little more specific */ |
195 |
if (!strcmp (cp, "unpaid") && QUERY_FLAG (op, FLAG_UNPAID)) |
196 |
return 2; |
197 |
if (!strcmp (cp, "cursed") && QUERY_FLAG (op, FLAG_KNOWN_CURSED) && (QUERY_FLAG (op, FLAG_CURSED) || QUERY_FLAG (op, FLAG_DAMNED))) |
198 |
return 2; |
199 |
|
200 |
if (!strcmp (cp, "unlocked") && !QUERY_FLAG (op, FLAG_INV_LOCKED)) |
201 |
return 2; |
202 |
|
203 |
/* Allow for things like '100 arrows' */ |
204 |
if ((count = atoi (cp)) != 0) |
205 |
{ |
206 |
cp = strchr (cp, ' '); |
207 |
while (cp && cp[0] == ' ') |
208 |
++cp; /* get rid of spaces */ |
209 |
} |
210 |
else |
211 |
{ |
212 |
if (pl->type == PLAYER) |
213 |
count = pl->contr->count; |
214 |
else |
215 |
count = 0; |
216 |
} |
217 |
|
218 |
if (!cp || cp[0] == '\0' || count < 0) |
219 |
return 0; |
220 |
|
221 |
|
222 |
/* The code here should go from highest retval to lowest. That |
223 |
* is because of the 'else' handling - we don't want to match on |
224 |
* something and set a low retval, even though it may match a higher retcal |
225 |
* later. So keep it in descending order here, so we try for the best |
226 |
* match first, and work downward. |
227 |
*/ |
228 |
if (!strcasecmp (cp, query_name (op))) |
229 |
retval = 20; |
230 |
else if (!strcasecmp (cp, query_short_name (op))) |
231 |
retval = 18; |
232 |
else if (!strcasecmp (cp, query_base_name (op, 0))) |
233 |
retval = 16; |
234 |
else if (!strcasecmp (cp, query_base_name (op, 1))) |
235 |
retval = 16; |
236 |
else if (op->custom_name && !strcasecmp (cp, op->custom_name)) |
237 |
retval = 15; |
238 |
else if (!strncasecmp (cp, query_base_name (op, 0), strlen (cp))) |
239 |
retval = 14; |
240 |
else if (!strncasecmp (cp, query_base_name (op, 1), strlen (cp))) |
241 |
retval = 14; |
242 |
/* Do substring checks, so things like 'Str+1' will match. |
243 |
* retval of these should perhaps be lower - they are lower |
244 |
* then the specific strcasecmp aboves, but still higher than |
245 |
* some other match criteria. |
246 |
*/ |
247 |
else if (strstr (query_base_name (op, 1), cp)) |
248 |
retval = 12; |
249 |
else if (strstr (query_base_name (op, 0), cp)) |
250 |
retval = 12; |
251 |
else if (strstr (query_short_name (op), cp)) |
252 |
retval = 12; |
253 |
/* Check against plural/non plural based on count. */ |
254 |
else if (count > 1 && !strcasecmp (cp, op->name_pl)) |
255 |
retval = 6; |
256 |
else if (count == 1 && !strcasecmp (op->name, cp)) |
257 |
retval = 6; |
258 |
/* base name matched - not bad */ |
259 |
else if (strcasecmp (cp, op->name) == 0 && !count) |
260 |
retval = 4; |
261 |
/* Check for partial custom name, but give a real low priority */ |
262 |
else if (op->custom_name && strstr (op->custom_name, cp)) |
263 |
retval = 3; |
264 |
|
265 |
if (retval) |
266 |
{ |
267 |
if (pl->type == PLAYER) |
268 |
pl->contr->count = count; |
269 |
|
270 |
return retval; |
271 |
} |
272 |
} |
273 |
|
274 |
return 0; |
275 |
} |
276 |
|
277 |
archetype::archetype (const char *name) |
278 |
{ |
279 |
arch = this; |
280 |
this->archname = this->name = this->name_pl = name; |
281 |
} |
282 |
|
283 |
archetype::~archetype () |
284 |
{ |
285 |
unlink (); |
286 |
} |
287 |
|
288 |
void |
289 |
archetype::link () |
290 |
{ |
291 |
ht.insert (std::make_pair (archname, this)); |
292 |
|
293 |
if (!archetypes.contains (this)) |
294 |
archetypes.insert (this); |
295 |
} |
296 |
|
297 |
void |
298 |
archetype::unlink () |
299 |
{ |
300 |
ht.erase (archname); |
301 |
|
302 |
if (archetypes.contains (this)) |
303 |
archetypes.erase (this); |
304 |
} |
305 |
|
306 |
/* |
307 |
* Finds, using the hashtable, which archetype matches the given name. |
308 |
* returns a pointer to the found archetype, otherwise NULL. |
309 |
*/ |
310 |
archetype * |
311 |
archetype::find (const char *name) |
312 |
{ |
313 |
if (!name) |
314 |
return 0; |
315 |
|
316 |
auto (i, ht.find (name)); |
317 |
|
318 |
if (i == ht.end ()) |
319 |
return 0; |
320 |
else |
321 |
return i->second; |
322 |
} |
323 |
|
324 |
archetype * |
325 |
archetype::read (object_thawer &f) |
326 |
{ |
327 |
assert (f.kw == KW_object); |
328 |
|
329 |
std::vector<archetype *> parts; |
330 |
|
331 |
coroapi::cede_to_tick (); |
332 |
|
333 |
for (;;) |
334 |
{ |
335 |
archetype *at = new archetype (f.get_str ()); |
336 |
|
337 |
f.next (); |
338 |
|
339 |
#if 0 |
340 |
// implementing it here in the server does neither allow multiple inheritence |
341 |
// nor does it cleanly "just override". it would allow use in map files, though, |
342 |
// and other resource files dynamically laoded (as opposed to being preprocessed). |
343 |
// not that any of this is relevant as of yet... |
344 |
if (f.kw == KW_inherit) |
345 |
{ |
346 |
if (archetype *at = find (f.get_str ())) |
347 |
*op = at->clone; |
348 |
else |
349 |
LOG (llevError, "archetype '%s' tries to inherit from non-existent archetype '%s'.\n", |
350 |
&at->archname, f.get_str ()); |
351 |
|
352 |
f.next (); |
353 |
} |
354 |
#endif |
355 |
|
356 |
loading_arch = at; // hack to tell parse_kv et al. to behave |
357 |
bool parse_ok = at->parse_kv (f); |
358 |
loading_arch = 0; |
359 |
|
360 |
if (!parse_ok) |
361 |
goto fail; |
362 |
|
363 |
loading_arch = at; // hack to tell parse_kv et al. to behave |
364 |
at->post_load_check (); |
365 |
loading_arch = 0; |
366 |
|
367 |
parts.push_back (at); |
368 |
|
369 |
if (f.kw != KW_more) |
370 |
break; |
371 |
|
372 |
f.next (); |
373 |
|
374 |
if (f.kw != KW_object) |
375 |
{ |
376 |
f.parse_error ("more object"); |
377 |
goto fail; |
378 |
} |
379 |
} |
380 |
|
381 |
{ |
382 |
auto (at, parts.begin ()); |
383 |
|
384 |
archetype *new_head = parts.front (); |
385 |
archetype *old_head = find (new_head->archname); |
386 |
|
387 |
if (old_head && !old_head->is_head ()) |
388 |
{ |
389 |
LOG (llevError, "%s: unable to overwrite non-head archetype '%s' with head archetype, skipping.\n", |
390 |
&new_head->archname, &old_head->archname); |
391 |
goto fail; |
392 |
} |
393 |
|
394 |
// check that all archetypes belong to the same old object or are new |
395 |
for (auto (at, parts.begin ()); at != parts.end (); ++at) |
396 |
{ |
397 |
archetype *new_part = *at; |
398 |
archetype *old_part = find (new_part->archname); |
399 |
|
400 |
if (old_part && old_part->head_ () != old_head) |
401 |
{ |
402 |
LOG (llevError, "%s: unable to overwrite archetype '%s' with archetype of different object, skipping.\n", |
403 |
&new_part->archname, &((archetype *)old_part->head_ ())->archname); |
404 |
goto fail; |
405 |
} |
406 |
} |
407 |
|
408 |
// assemble new chain |
409 |
new_head->min_x = new_head->max_x = new_head->x; |
410 |
new_head->min_y = new_head->max_y = new_head->y; |
411 |
|
412 |
archetype *less = new_head; |
413 |
for (auto (p, parts.begin () + 1); p != parts.end (); ++p) |
414 |
{ |
415 |
archetype *at = *p; |
416 |
|
417 |
// some flags get inherited formt he head (probably a lot more) |
418 |
// doing it here doesn't feel too cozy, but it allows code |
419 |
// to ignore head checks for these flags, which saves time |
420 |
at->flag [FLAG_ALIVE] = new_head->flag [FLAG_ALIVE]; |
421 |
at->flag [FLAG_NO_PICK] = new_head->flag [FLAG_NO_PICK]; |
422 |
at->flag [FLAG_MONSTER] = new_head->flag [FLAG_MONSTER]; |
423 |
at->flag [FLAG_IS_FLOOR] = new_head->flag [FLAG_IS_FLOOR]; |
424 |
|
425 |
if (at->x < new_head->min_x) new_head->min_x = at->x; |
426 |
if (at->y < new_head->min_y) new_head->min_y = at->y; |
427 |
if (at->x > new_head->max_x) new_head->max_x = at->x; |
428 |
if (at->y > new_head->max_y) new_head->max_y = at->y; |
429 |
|
430 |
at->head = new_head; |
431 |
less->more = at; |
432 |
less = at; |
433 |
} |
434 |
|
435 |
postponed_arch.insert (postponed_arch.end (), parts.begin (), parts.end ()); |
436 |
|
437 |
return new_head; |
438 |
} |
439 |
|
440 |
fail: |
441 |
for (auto (p, parts.begin ()); p != parts.end (); ++p) |
442 |
(*p)->destroy (true); |
443 |
|
444 |
return 0; |
445 |
} |
446 |
|
447 |
void |
448 |
archetype::postpone_arch_ref (arch_ptr &ref, const_utf8_string other_arch) |
449 |
{ |
450 |
ref = 0; |
451 |
postponed_arch_ref.push_back (std::pair<arch_ptr *, shstr>(&ref, shstr (other_arch))); |
452 |
} |
453 |
|
454 |
void |
455 |
archetype::commit_load () |
456 |
{ |
457 |
// unlink old archetypes and link in new ones */ |
458 |
for (auto (p, postponed_arch.begin ()); p != postponed_arch.end (); ++p) |
459 |
{ |
460 |
archetype *at = *p; |
461 |
|
462 |
if (archetype *old = find (at->archname)) |
463 |
old->unlink (); |
464 |
|
465 |
at->link (); |
466 |
} |
467 |
|
468 |
postponed_arch.clear (); |
469 |
|
470 |
// now resolve arch references |
471 |
for (auto (p, postponed_arch_ref.begin ()); p != postponed_arch_ref.end (); ++p) |
472 |
{ |
473 |
arch_ptr *ap = p->first; |
474 |
archetype *at = find (p->second); |
475 |
|
476 |
if (!at) |
477 |
LOG (llevError, "unable to resolve postponed arch reference to '%s'", &p->second); |
478 |
|
479 |
*ap = at; |
480 |
} |
481 |
|
482 |
postponed_arch_ref.clear (); |
483 |
|
484 |
empty = find (shstr_empty_archetype); |
485 |
} |
486 |
|
487 |
/* |
488 |
* Creates and returns a new object which is a copy of the given archetype. |
489 |
* This function returns NULL on failure. |
490 |
*/ |
491 |
object * |
492 |
arch_to_object (archetype *at) |
493 |
{ |
494 |
if (!at) |
495 |
{ |
496 |
LOG (llevError, "Couldn't find archetype.\n"); |
497 |
return 0; |
498 |
} |
499 |
|
500 |
object *op = at->clone (); |
501 |
op->arch = at; |
502 |
op->instantiate (); |
503 |
|
504 |
return op; |
505 |
} |
506 |
|
507 |
object * |
508 |
archetype::instance () |
509 |
{ |
510 |
return arch_to_object (this); |
511 |
} |
512 |
|
513 |
/* |
514 |
* Creates an object. This function is called by get_archetype() |
515 |
* if it fails to find the appropriate archetype. |
516 |
* Thus get_archetype() will be guaranteed to always return |
517 |
* an object, and never NULL. |
518 |
*/ |
519 |
object * |
520 |
create_singularity (const char *name) |
521 |
{ |
522 |
LOG (llevError | logBacktrace, "FATAL: creating singularity for '%s'.\n", name); |
523 |
|
524 |
if (!strcmp (name, "bug")) |
525 |
abort (); |
526 |
|
527 |
char buf[MAX_BUF]; |
528 |
sprintf (buf, "bug, please report (%s)", name); |
529 |
|
530 |
object *op = get_archetype ("bug"); |
531 |
op->name = op->name_pl = buf; |
532 |
|
533 |
return op; |
534 |
} |
535 |
|
536 |
/* |
537 |
* Finds which archetype matches the given name, and returns a new |
538 |
* object containing a copy of the archetype. |
539 |
*/ |
540 |
object * |
541 |
get_archetype (const char *name) |
542 |
{ |
543 |
archetype *at = archetype::find (name); |
544 |
|
545 |
if (!at) |
546 |
return create_singularity (name); |
547 |
|
548 |
return arch_to_object (at); |
549 |
} |
550 |
|
551 |
/* |
552 |
* Returns the first archetype using the given type. |
553 |
* Used in treasure-generation. |
554 |
*/ |
555 |
archetype * |
556 |
type_to_archetype (int type) |
557 |
{ |
558 |
for_all_archetypes (at) |
559 |
if (at->type == type && at->head_ () != at) |
560 |
return at; |
561 |
|
562 |
return 0; |
563 |
} |
564 |
|
565 |
/* |
566 |
* Returns a new object copied from the first archetype matching |
567 |
* the given type. |
568 |
* Used in treasure-generation. |
569 |
*/ |
570 |
object * |
571 |
clone_arch (int type) |
572 |
{ |
573 |
archetype *at; |
574 |
|
575 |
if ((at = type_to_archetype (type)) == NULL) |
576 |
{ |
577 |
LOG (llevError, "Can't clone archetype %d\n", type); |
578 |
return 0; |
579 |
} |
580 |
|
581 |
object *op = at->clone (); |
582 |
op->instantiate (); |
583 |
return op; |
584 |
} |
585 |
|
586 |
/* |
587 |
* member: make instance from class |
588 |
*/ |
589 |
object * |
590 |
object_create_arch (archetype *at) |
591 |
{ |
592 |
object *op, *prev = 0, *head = 0; |
593 |
|
594 |
while (at) |
595 |
{ |
596 |
op = arch_to_object (at); |
597 |
|
598 |
op->x = at->x; |
599 |
op->y = at->y; |
600 |
|
601 |
if (head) |
602 |
op->head = head, prev->more = op; |
603 |
|
604 |
if (!head) |
605 |
head = op; |
606 |
|
607 |
prev = op; |
608 |
at = (archetype *)at->more; |
609 |
} |
610 |
|
611 |
return head; |
612 |
} |
613 |
|