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Comparing deliantra/server/common/arch.C (file contents):
Revision 1.40 by root, Fri Feb 2 22:08:23 2007 UTC vs.
Revision 1.92 by root, Thu Nov 5 15:43:21 2009 UTC

1/* 1/*
2 * CrossFire, A Multiplayer game for X-windows 2 * This file is part of Deliantra, the Roguelike Realtime MMORPG.
3 * 3 *
4 * Copyright (C) 2005, 2006, 2007 Marc Lehmann & Crossfire+ Development Team 4 * Copyright (©) 2005,2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
5 * Copyright (C) 2002 Mark Wedel & Crossfire Development Team 5 * Copyright (©) 2002,2007 Mark Wedel & Crossfire Development Team
6 * Copyright (C) 1992 Frank Tore Johansen 6 * Copyright (©) 1992,2007 Frank Tore Johansen
7 * 7 *
8 * This program is free software; you can redistribute it and/or modify 8 * Deliantra is free software: you can redistribute it and/or modify it under
9 * it under the terms of the GNU General Public License as published by 9 * the terms of the Affero GNU General Public License as published by the
10 * the Free Software Foundation; either version 2 of the License, or 10 * Free Software Foundation, either version 3 of the License, or (at your
11 * (at your option) any later version. 11 * option) any later version.
12 * 12 *
13 * This program is distributed in the hope that it will be useful, 13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details. 16 * GNU General Public License for more details.
17 * 17 *
18 * You should have received a copy of the GNU General Public License 18 * You should have received a copy of the Affero GNU General Public License
19 * along with this program; if not, write to the Free Software 19 * and the GNU General Public License along with this program. If not, see
20 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 20 * <http://www.gnu.org/licenses/>.
21 * 21 *
22 * The authors can be reached via e-mail at <crossfire@schmorp.de> 22 * The authors can be reached via e-mail to <support@deliantra.net>
23 */ 23 */
24 24
25#include <cassert> 25#include <cassert>
26 26
27#include <global.h> 27#include <global.h>
28#include <funcpoint.h>
29#include <loader.h> 28#include <loader.h>
30 29
31#include <tr1/functional> 30#include <tr1/functional>
32#include <tr1/unordered_map> 31#include <tr1/unordered_map>
33 32
34int arch_init; /* True if doing arch initialization */ 33archetype *loading_arch; // ugly flag to object loader etc. to suppress/request special processing
35 34arch_ptr archetype::empty;
36/* The naming of these functions is really poor - they are all
37 * pretty much named '.._arch_...', but they may more may not
38 * return archetypes. Some make the arch_to_object call, and thus
39 * return an object. Perhaps those should be called 'archob' functions
40 * to denote they return an object derived from the archetype.
41 * MSW 2003-04-29
42 */
43 35
44// the hashtable 36// the hashtable
45typedef std::tr1::unordered_map 37typedef std::tr1::unordered_map
46 < 38 <
47 const char *, 39 const char *,
49 str_hash, 41 str_hash,
50 str_equal, 42 str_equal,
51 slice_allocator< std::pair<const char *const, arch_ptr> > 43 slice_allocator< std::pair<const char *const, arch_ptr> >
52 > HT; 44 > HT;
53 45
54static HT ht (5000); 46static HT ht (10000);
47archvec archetypes;
48static unordered_vector<archetype *> allarch;
49static int dirtycnt;
50
51// the vector of other_arch references to be resolved
52static std::vector< std::pair<arch_ptr *, shstr> > postponed_arch_ref;
53// the vector of loaded but not yet committed archetypes
54static std::vector<archetype *> postponed_arch;
55
56//+GPL
55 57
56/** 58/**
57 * GROS - This function retrieves an archetype given the name that appears 59 * GROS - This function retrieves an archetype given the name that appears
58 * during the game (for example, "writing pen" instead of "stylus"). 60 * during the game (for example, "writing pen" instead of "stylus").
59 * It does not use the hashtable system, but browse the whole archlist each time. 61 * It does not use the hashtable system, but browse the whole archlist each time.
67archetype * 69archetype *
68find_archetype_by_object_name (const char *name) 70find_archetype_by_object_name (const char *name)
69{ 71{
70 shstr_cmp name_cmp (name); 72 shstr_cmp name_cmp (name);
71 73
72 for (archetype *at = first_archetype; at; at = at->next) 74 for_all_archetypes (at)
73 if (at->clone.name == name_cmp) 75 if (at->name == name_cmp)
74 return at; 76 return at;
75 77
76 return 0; 78 return 0;
77} 79}
78 80
84archetype * 86archetype *
85find_archetype_by_object_type_name (int type, const char *name) 87find_archetype_by_object_type_name (int type, const char *name)
86{ 88{
87 shstr_cmp name_cmp (name); 89 shstr_cmp name_cmp (name);
88 90
89 for (archetype *at = first_archetype; at; at = at->next) 91 for_all_archetypes (at)
90 if (at->clone.name == name_cmp && at->clone.type == type) 92 if (at->name == name_cmp && at->type == type)
91 return at; 93 return at;
92 94
93 return 0; 95 return 0;
94} 96}
95 97
101object * 103object *
102get_archetype_by_skill_name (const char *skill, int type) 104get_archetype_by_skill_name (const char *skill, int type)
103{ 105{
104 shstr_cmp skill_cmp (skill); 106 shstr_cmp skill_cmp (skill);
105 107
106 for (archetype *at = first_archetype; at; at = at->next) 108 for_all_archetypes (at)
107 if (at->clone.skill == skill_cmp && (type == -1 || type == at->clone.type)) 109 if (at->skill == skill_cmp && (type == -1 || type == at->type))
108 return arch_to_object (at); 110 return at->instance ();
109 111
110 return 0; 112 return 0;
111} 113}
112 114
113/* similiar to above - this returns the first archetype 115/* similiar to above - this returns the first archetype
118 * (eg, skills) 120 * (eg, skills)
119 */ 121 */
120archetype * 122archetype *
121get_archetype_by_type_subtype (int type, int subtype) 123get_archetype_by_type_subtype (int type, int subtype)
122{ 124{
123 for (archetype *at = first_archetype; at; at = at->next) 125 for_all_archetypes (at)
124 if ((type == -1 || type == at->clone.type) && (subtype == -1 || subtype == at->clone.subtype)) 126 if ((type == -1 || type == at->type) && (subtype == -1 || subtype == at->subtype))
125 return at; 127 return at;
126 128
127 return 0; 129 return 0;
128} 130}
129 131
134 * - name: The name we're searching for (ex: "writing pen"); 136 * - name: The name we're searching for (ex: "writing pen");
135 * Return value: 137 * Return value:
136 * - a corresponding object if found; a singularity object if not found. 138 * - a corresponding object if found; a singularity object if not found.
137 * Note by MSW - it appears that it takes the full name and keeps 139 * Note by MSW - it appears that it takes the full name and keeps
138 * shortening it until it finds a match. I re-wrote this so that it 140 * shortening it until it finds a match. I re-wrote this so that it
139 * doesn't malloc it each time - not that this function is used much, 141 * doesn't allocate it each time - not that this function is used much,
140 * but it otherwise had a big memory leak. 142 * but it otherwise had a big memory leak.
141 */ 143 */
142object * 144object *
143get_archetype_by_object_name (const char *name) 145get_archetype_by_object_name (const char *name)
144{ 146{
145 char tmpname[MAX_BUF]; 147 char tmpname[MAX_BUF];
146 int i;
147 148
148 assign (tmpname, name); 149 assign (tmpname, name);
149 150
150 for (i = strlen (tmpname); i > 0; i--) 151 for (int i = strlen (tmpname); i > 0; i--)
151 { 152 {
152 tmpname[i] = 0; 153 tmpname[i] = 0;
153 154
154 if (archetype *at = find_archetype_by_object_name (tmpname)) 155 if (archetype *at = find_archetype_by_object_name (tmpname))
155 return arch_to_object (at); 156 return at->instance ();
156 } 157 }
157 158
158 return create_singularity (name); 159 return create_singularity (name);
159} 160}
160 161
161 /* This is a subset of the parse_id command. Basically, name can be 162/* This is a subset of the parse_id command. Basically, name can be
162 * a string seperated lists of things to match, with certain keywords. 163 * a string seperated lists of things to match, with certain keywords.
163 * pl is the player (only needed to set count properly) 164 * pl is the player (only needed to set count properly)
164 * op is the item we are trying to match. Calling function takes care 165 * op is the item we are trying to match. Calling function takes care
165 * of what action might need to be done and if it is valid 166 * of what action might need to be done and if it is valid
166 * (pickup, drop, etc.) Return NONZERO if we have a match. A higher 167 * (pickup, drop, etc.) Return NONZERO if we have a match. A higher
167 * value means a better match. 0 means no match. 168 * value means a better match. 0 means no match.
168 * 169 *
169 * Brief outline of the procedure: 170 * Brief outline of the procedure:
170 * We take apart the name variable into the individual components. 171 * We take apart the name variable into the individual components.
171 * cases for 'all' and unpaid are pretty obvious. 172 * cases for 'all' and unpaid are pretty obvious.
172 * Next, we check for a count (either specified in name, or in the 173 * Next, we check for a count (either specified in name, or in the
173 * player object.) 174 * player object.)
174 * If count is 1, make a quick check on the name. 175 * If count is 1, make a quick check on the name.
175 * IF count is >1, we need to make plural name. Return if match. 176 * IF count is >1, we need to make plural name. Return if match.
176 * Last, make a check on the full name. 177 * Last, make a check on the full name.
177 */ 178 */
178int 179int
179item_matched_string (object *pl, object *op, const char *name) 180item_matched_string (object *pl, object *op, const char *name)
180{ 181{
181 char *cp, local_name[MAX_BUF]; 182 char *cp, local_name[MAX_BUF];
182 int count, retval = 0; 183 int count, retval = 0;
194 return 1; 195 return 1;
195 196
196 /* unpaid is a little more specific */ 197 /* unpaid is a little more specific */
197 if (!strcmp (cp, "unpaid") && QUERY_FLAG (op, FLAG_UNPAID)) 198 if (!strcmp (cp, "unpaid") && QUERY_FLAG (op, FLAG_UNPAID))
198 return 2; 199 return 2;
200
199 if (!strcmp (cp, "cursed") && QUERY_FLAG (op, FLAG_KNOWN_CURSED) && (QUERY_FLAG (op, FLAG_CURSED) || QUERY_FLAG (op, FLAG_DAMNED))) 201 if (!strcmp (cp, "cursed") && QUERY_FLAG (op, FLAG_KNOWN_CURSED) && (QUERY_FLAG (op, FLAG_CURSED) || QUERY_FLAG (op, FLAG_DAMNED)))
200 return 2; 202 return 2;
201 203
202 if (!strcmp (cp, "unlocked") && !QUERY_FLAG (op, FLAG_INV_LOCKED)) 204 if (!strcmp (cp, "unlocked") && !QUERY_FLAG (op, FLAG_INV_LOCKED))
203 return 2; 205 return 2;
225 * is because of the 'else' handling - we don't want to match on 227 * is because of the 'else' handling - we don't want to match on
226 * something and set a low retval, even though it may match a higher retcal 228 * something and set a low retval, even though it may match a higher retcal
227 * later. So keep it in descending order here, so we try for the best 229 * later. So keep it in descending order here, so we try for the best
228 * match first, and work downward. 230 * match first, and work downward.
229 */ 231 */
232 const char *qbn0, *qbn1, *qsn; // query base name/short name caches
233
230 if (!strcasecmp (cp, query_name (op))) 234 if (!strcasecmp (cp, query_name (op)))
231 retval = 20; 235 retval = 20;
232 else if (!strcasecmp (cp, query_short_name (op))) 236 else if (!strcasecmp (cp, qsn = query_short_name (op)))
233 retval = 18; 237 retval = 18;
234 else if (!strcasecmp (cp, query_base_name (op, 0))) 238 else if (!strcasecmp (cp, qbn0 = query_base_name (op, 0)))
235 retval = 16; 239 retval = 16;
236 else if (!strcasecmp (cp, query_base_name (op, 1))) 240 else if (!strcasecmp (cp, qbn1 = query_base_name (op, 1)))
237 retval = 16; 241 retval = 16;
238 else if (op->custom_name && !strcasecmp (cp, op->custom_name)) 242 else if (op->custom_name && !strcasecmp (cp, op->custom_name))
239 retval = 15; 243 retval = 15;
240 else if (!strncasecmp (cp, query_base_name (op, 0), strlen (cp))) 244 else if (!strncasecmp (cp, qbn0, strlen (cp)))
241 retval = 14; 245 retval = 14;
242 else if (!strncasecmp (cp, query_base_name (op, 1), strlen (cp))) 246 else if (!strncasecmp (cp, qbn1, strlen (cp)))
243 retval = 14; 247 retval = 14;
244 /* Do substring checks, so things like 'Str+1' will match. 248 /* Do substring checks, so things like 'Str+1' will match.
245 * retval of these should perhaps be lower - they are lower 249 * retval of these should perhaps be lower - they are lower
246 * then the specific strcasecmp aboves, but still higher than 250 * then the specific strcasecmp aboves, but still higher than
247 * some other match criteria. 251 * some other match criteria.
248 */ 252 */
249 else if (strstr (query_base_name (op, 1), cp)) 253 else if (strstr (qbn1, cp))
250 retval = 12; 254 retval = 12;
251 else if (strstr (query_base_name (op, 0), cp)) 255 else if (strstr (qbn0, cp))
252 retval = 12; 256 retval = 12;
253 else if (strstr (query_short_name (op), cp)) 257 else if (strstr (qsn, cp))
254 retval = 12; 258 retval = 12;
255 /* Check against plural/non plural based on count. */ 259 /* Check against plural/non plural based on count. */
256 else if (count > 1 && !strcasecmp (cp, op->name_pl)) 260 else if (count > 1 && !strcasecmp (cp, op->name_pl))
257 retval = 6; 261 retval = 6;
258 else if (count == 1 && !strcasecmp (op->name, cp)) 262 else if (count == 1 && !strcasecmp (op->name, cp))
259 retval = 6; 263 retval = 6;
260 /* base name matched - not bad */ 264 /* base name matched - not bad */
261 else if (strcasecmp (cp, op->name) == 0 && !count) 265 else if (strcasecmp (cp, op->name) == 0 && !count)
262 retval = 4; 266 retval = 4;
263 /* Check for partial custom name, but give a real low priority */ 267 /* Check for partial custom name, but give a real low priority */
264 else if (op->custom_name && strstr (op->custom_name, cp)) 268 else if (op->custom_name.contains (cp))
265 retval = 3; 269 retval = 3;
266 270
267 if (retval) 271 if (retval)
268 { 272 {
269 if (pl->type == PLAYER) 273 if (pl->type == PLAYER)
274 } 278 }
275 279
276 return 0; 280 return 0;
277} 281}
278 282
283//-GPL
284
285archetype::archetype (const char *name)
286{
287 arch = this;
288 this->archname = this->name = this->name_pl = name;
289}
290
291archetype::~archetype ()
292{
293 unlink ();
294}
295
296void
297archetype::link ()
298{
299 if (!archetypes.contains (this))
300 {
301 archetypes.insert (this);
302 ht.insert (std::make_pair (archname, this));
303 }
304}
305
306void
307archetype::unlink ()
308{
309 if (archetypes.contains (this))
310 {
311 archetypes.erase (this);
312 ht.erase (archname);
313 }
314}
315
279/* 316/*
280 * Initialises the internal linked list of archetypes (read from file). 317 * Finds, using the hashtable, which archetype matches the given name.
281 * Then the global "empty_archetype" pointer is initialised. 318 * returns a pointer to the found archetype, otherwise NULL.
282 * Then the blocksview[] array is initialised.
283 */ 319 */
320archetype *
321archetype::find (const char *name)
322{
323 if (!name)
324 return 0;
325
326 auto (i, ht.find (name));
327
328 if (i == ht.end ())
329 return 0;
330 else
331 return i->second;
332}
333
334archetype *
335archetype::read (object_thawer &f)
336{
337 assert (f.kw == KW_object);
338
339 std::vector<archetype *> parts;
340
341 coroapi::cede_to_tick ();
342
343 for (;;)
344 {
345 archetype *at = new archetype (f.get_str ());
346
347 f.next ();
348
349#if 0
350 // implementing it here in the server does neither allow multiple inheritence
351 // nor does it cleanly "just override". it would allow use in map files, though,
352 // and other resource files dynamically laoded (as opposed to being preprocessed).
353 // not that any of this is relevant as of yet...
354 if (f.kw == KW_inherit)
355 {
356 if (archetype *at = find (f.get_str ()))
357 *op = at->clone;
358 else
359 LOG (llevError, "archetype '%s' tries to inherit from non-existent archetype '%s'.\n",
360 &at->archname, f.get_str ());
361
362 f.next ();
363 }
364#endif
365
366 loading_arch = at; // hack to tell parse_kv et al. to behave
367 bool parse_ok = at->parse_kv (f);
368 loading_arch = 0;
369
370 if (!parse_ok)
371 goto fail;
372
373 loading_arch = at; // hack to tell parse_kv et al. to behave
374 at->post_load_check ();
375 loading_arch = 0;
376
377 parts.push_back (at);
378
379 if (f.kw != KW_more)
380 break;
381
382 f.next ();
383
384 if (f.kw != KW_object)
385 {
386 f.parse_error ("more object");
387 goto fail;
388 }
389 }
390
391 {
392 auto (at, parts.begin ());
393
394 archetype *new_head = parts.front ();
395 archetype *old_head = find (new_head->archname);
396
397 if (old_head && !old_head->is_head ())
398 {
399 LOG (llevError, "%s: unable to overwrite non-head archetype '%s' with head archetype, skipping.\n",
400 &new_head->archname, &old_head->archname);
401 goto fail;
402 }
403
404 // check that all archetypes belong to the same old object or are new
405 for (auto (at, parts.begin ()); at != parts.end (); ++at)
406 {
407 archetype *new_part = *at;
408 archetype *old_part = find (new_part->archname);
409
410 if (old_part && old_part->head_ () != old_head)
411 {
412 LOG (llevError, "%s: unable to overwrite archetype '%s' with archetype of different object, skipping.\n",
413 &new_part->archname, &((archetype *)old_part->head_ ())->archname);
414 goto fail;
415 }
416 }
417
418 // assemble new chain
419 new_head->min_x = new_head->max_x = new_head->x;
420 new_head->min_y = new_head->max_y = new_head->y;
421
422 archetype *less = new_head;
423 for (auto (p, parts.begin () + 1); p != parts.end (); ++p)
424 {
425 archetype *at = *p;
426
427 // some flags get inherited from the head (probably a lot more)
428 // doing it here doesn't feel too cozy, but it allows code
429 // to ignore head checks for these flags, which saves time
430 at->flag [FLAG_ALIVE] = new_head->flag [FLAG_ALIVE];
431 at->flag [FLAG_NO_PICK] = new_head->flag [FLAG_NO_PICK];
432 at->flag [FLAG_MONSTER] = new_head->flag [FLAG_MONSTER];
433 at->flag [FLAG_IS_FLOOR] = new_head->flag [FLAG_IS_FLOOR];
434
435 new_head->min_x = min (new_head->min_x, at->x);
436 new_head->min_y = min (new_head->min_y, at->y);
437 new_head->max_x = max (new_head->max_x, at->x);
438 new_head->max_y = max (new_head->max_y, at->y);
439
440 at->head = new_head;
441 less->more = at;
442 less = at;
443 }
444
445 postponed_arch.insert (postponed_arch.end (), parts.begin (), parts.end ());
446
447 return new_head;
448 }
449
450fail:
451 for (auto (p, parts.begin ()); p != parts.end (); ++p)
452 (*p)->destroy ();
453
454 return 0;
455}
284 456
285void 457void
286init_archetypes (void) 458archetype::postpone_arch_ref (arch_ptr &ref, const_utf8_string other_arch)
287{ /* called from add_player() and edit() */ 459{
288 if (first_archetype != NULL) /* Only do this once */ 460 ref = 0;
289 return; 461 postponed_arch_ref.push_back (std::pair<arch_ptr *, shstr>(&ref, shstr (other_arch)));
290
291 arch_init = 1;
292 load_archetypes ();
293 arch_init = 0;
294 empty_archetype = archetype::find ("empty_archetype");
295
296/* init_blocksview();*/
297} 462}
298 463
299/*
300 * An alternative way to init the hashtable which is slower, but _works_...
301 */
302void 464void
303init_archetable (void) 465archetype::commit_load ()
304{ 466{
467 // unlink old archetypes and link in new ones */
468 for (auto (p, postponed_arch.begin ()); p != postponed_arch.end (); ++p)
469 {
305 archetype *at; 470 archetype *at = *p;
306 471
307 LOG (llevDebug, " Setting up archetable...\n"); 472 if (archetype *old = find (at->archname))
473 old->unlink ();
308 474
309 for (at = first_archetype; at; at = at->more ? at->more : at->next) 475 allarch.push_back (at);
310 at->hash_add ();
311 476
312 LOG (llevDebug, "done\n"); 477 at->link ();
478 ++dirtycnt;
479 }
480
481 postponed_arch.clear ();
482
483 // now resolve arch references
484 for (auto (p, postponed_arch_ref.begin ()); p != postponed_arch_ref.end (); ++p)
485 {
486 arch_ptr *ap = p->first;
487 archetype *at = find (p->second);
488
489 if (!at)
490 LOG (llevError, "unable to resolve postponed arch reference to '%s'", &p->second);
491
492 *ap = at;
493 }
494
495 postponed_arch_ref.clear ();
496
497 empty = find (shstr_empty_archetype);
313} 498}
314 499
315void 500void
316free_all_archs (void) 501archetype::gc ()
317{ 502{
318 archetype *at, *next; 503 int cnt = max (1, min (allarch.size () / 128, dirtycnt));
319 int i = 0, f = 0; 504 dirtycnt = max (0, dirtycnt - cnt);
320 505
321 for (at = first_archetype; at; at = next) 506 do
322 { 507 {
323 if (at->more) 508 static int idx;
324 next = at->more; 509
510 if (idx >= allarch.size ())
511 if (idx)
512 idx = 0;
513 else
514 return;
515
516 archetype *at = allarch [idx];
517
518 if (at->refcnt_cnt () > 1) // all arches have ONE refcount from their object
519 ++idx;
325 else 520 else
326 next = at->next;
327
328 delete
329 at;
330
331 i++;
332 }
333
334 LOG (llevDebug, "Freed %d archetypes, %d faces\n", i, f);
335}
336
337archetype::archetype ()
338{
339 CLEAR_FLAG (&clone, FLAG_FREED); /* This shouldn't matter, since copy_to */
340 SET_FLAG (&clone, FLAG_REMOVED); /* doesn't copy these flags... */
341}
342
343archetype::~archetype ()
344{
345}
346
347/*
348 * Reads/parses the archetype-file, and copies into a linked list
349 * of archetype-structures.
350 */
351void
352first_arch_pass (object_thawer & fp)
353{
354 archetype *head = 0, *last_more = 0;
355
356 archetype *at = new archetype;
357 at->clone.arch = first_archetype = at;
358
359 while (int i = load_object (fp, &at->clone, 0))
360 {
361 at->clone.speed_left = (float) (-0.1);
362 /* copy the body_info to the body_used - this is only really
363 * need for monsters, but doesn't hurt to do it for everything.
364 * by doing so, when a monster is created, it has good starting
365 * values for the body_used info, so when items are created
366 * for it, they can be properly equipped.
367 */
368 memcpy (&at->clone.body_used, &at->clone.body_info, sizeof (at->clone.body_info));
369
370 switch (i)
371 { 521 {
372 case LL_NORMAL: /* A new archetype, just link it with the previous */ 522 LOG (llevDebug, "garbage collect arch %s", &at->archname);
373 if (last_more != NULL) 523 assert (at->arch == at); // verify that refcnt == 1 is truly valid
374 last_more->next = at; 524 allarch.erase (idx);
375 if (head != NULL)
376 head->next = at;
377 head = last_more = at;
378#if 0
379 if (!op->type)
380 LOG (llevDebug, " WARNING: Archetype %s has no type info!\n", op->arch->name);
381#endif
382 at->tail_x = 0;
383 at->tail_y = 0;
384 break;
385 525
386 case LL_MORE: /* Another part of the previous archetype, link it correctly */ 526 // break chain
387 527 for (object *op = at->head_ (); op; )
388 at->head = head;
389 at->clone.head = &head->clone;
390 if (last_more != NULL)
391 { 528 {
529 object *next = op->more;
530 op->head = 0;
392 last_more->more = at; 531 op->more = 0;
393 last_more->clone.more = &at->clone; 532 op = next;
394 } 533 }
395 last_more = at;
396 534
397 /* If this multipart image is still composed of individual small 535 at->destroy ();
398 * images, don't set the tail_.. values. We can't use them anyways, 536 at->arch = 0;
399 * and setting these to zero makes the map sending to the client much
400 * easier as just looking at the head, we know what to do.
401 */
402 if (at->clone.face != head->clone.face)
403 {
404 head->tail_x = 0;
405 head->tail_y = 0;
406 }
407 else
408 {
409 if (at->clone.x > head->tail_x)
410 head->tail_x = at->clone.x;
411 if (at->clone.y > head->tail_y)
412 head->tail_y = at->clone.y;
413 }
414 break;
415
416 } 537 }
417
418 at = new archetype;
419
420 at->clone.arch = at;
421 }
422
423 delete at;
424}
425
426/*
427 * Reads the archetype file once more, and links all pointers between
428 * archetypes.
429 */
430
431void
432second_arch_pass (object_thawer & thawer)
433{
434 char buf[MAX_BUF], *variable = buf, *argument, *cp;
435 archetype *at = NULL, *other;
436
437 while (fgets (buf, MAX_BUF, thawer) != NULL)
438 { 538 }
439 if (*buf == '#') 539 while (--cnt);
440 continue;
441 if ((argument = strchr (buf, ' ')) != NULL)
442 {
443 *argument = '\0', argument++;
444 cp = argument + strlen (argument) - 1;
445 while (isspace (*cp))
446 {
447 *cp = '\0';
448 cp--;
449 }
450 }
451 if (!strcmp ("Object", variable))
452 {
453 if ((at = archetype::find (argument)) == NULL)
454 LOG (llevError, "Warning: failed to find arch %s\n", argument);
455 }
456 else if (!strcmp ("other_arch", variable))
457 {
458 if (at != NULL && at->clone.other_arch == NULL)
459 {
460 if ((other = archetype::find (argument)) == NULL)
461 LOG (llevError, "Warning: failed to find other_arch %s\n", argument);
462 else if (at != NULL)
463 at->clone.other_arch = other;
464 }
465 }
466 else if (!strcmp ("randomitems", variable))
467 {
468 if (at != NULL)
469 {
470 treasurelist *tl = find_treasurelist (argument);
471
472 if (tl == NULL)
473 LOG (llevError, "Failed to link treasure to arch (%s): %s\n", &at->name, argument);
474 else
475 at->clone.randomitems = tl;
476 }
477 }
478 }
479} 540}
480 541
481#ifdef DEBUG
482void
483check_generators (void)
484{
485 archetype *at;
486
487 for (at = first_archetype; at != NULL; at = at->next)
488 if (QUERY_FLAG (&at->clone, FLAG_GENERATOR) && at->clone.other_arch == NULL)
489 LOG (llevError, "Warning: %s is generator but lacks other_arch.\n", &at->name);
490}
491#endif
492
493/*
494 * First initialises the archtype hash-table (init_archetable()).
495 * Reads and parses the archetype file (with the first and second-pass
496 * functions).
497 * Then initialises treasures by calling load_treasures().
498 */
499
500void
501load_archetypes (void)
502{
503 char filename[MAX_BUF];
504
505 sprintf (filename, "%s/%s", settings.datadir, settings.archetypes);
506 LOG (llevDebug, "Reading archetypes from %s:\n", filename);
507
508 {
509 object_thawer
510 thawer (filename);
511
512 LOG (llevDebug, " arch-pass 1...\n");
513 first_arch_pass (thawer);
514 LOG (llevDebug, " done\n");
515 }
516
517 init_archetable ();
518 warn_archetypes = 1;
519
520 {
521 object_thawer
522 thawer (filename);
523
524 LOG (llevDebug, " loading treasure...\n");
525 load_treasures ();
526 LOG (llevDebug, " done\n");
527 LOG (llevDebug, " arch-pass 2...\n");
528 second_arch_pass (thawer);
529 LOG (llevDebug, " done\n");
530#ifdef DEBUG
531 check_generators ();
532#endif
533 }
534 LOG (llevDebug, " done\n");
535}
536
537/*
538 * Creates and returns a new object which is a copy of the given archetype.
539 * This function returns NULL on failure.
540 */
541object *
542arch_to_object (archetype *at)
543{
544 object *op; 542object *
545 543archetype::instance ()
546 if (at == NULL) 544{
547 { 545 object *op = clone ();
548 if (warn_archetypes)
549 LOG (llevError, "Couldn't find archetype.\n");
550
551 return NULL;
552 }
553
554 op = at->clone.clone ();
555 op->arch = at;
556 op->instantiate (); 546 op->instantiate ();
557 return op; 547 return op;
558} 548}
549
550//+GPL
559 551
560/* 552/*
561 * Creates an object. This function is called by get_archetype() 553 * Creates an object. This function is called by get_archetype()
562 * if it fails to find the appropriate archetype. 554 * if it fails to find the appropriate archetype.
563 * Thus get_archetype() will be guaranteed to always return 555 * Thus get_archetype() will be guaranteed to always return
564 * an object, and never NULL. 556 * an object, and never NULL.
565 */ 557 */
566object * 558object *
567create_singularity (const char *name) 559create_singularity (const char *name)
568{ 560{
569 object *op; 561 LOG (llevError | logBacktrace, "FATAL: creating singularity for '%s'.\n", name);
570 char buf[MAX_BUF];
571 562
572 sprintf (buf, "%s (%s)", ARCH_SINGULARITY, name); 563 if (!strcmp (name, "bug"))
573 op = object::create (); 564 abort ();
574 op->name = op->name_pl = buf; 565
575 SET_FLAG (op, FLAG_NO_PICK); 566 object *op = archetype::get (shstr_bug);
567 op->name = op->name_pl = format ("bug, please report (missing archetype %s)", name);
568
576 return op; 569 return op;
577} 570}
578 571
579/* 572/*
580 * Finds which archetype matches the given name, and returns a new 573 * Finds which archetype matches the given name, and returns a new
581 * object containing a copy of the archetype. 574 * object containing a copy of the archetype.
582 */ 575 */
583object * 576object *
584get_archetype (const char *name) 577get_archetype (const char *name)
585{ 578{
579 return archetype::get (name);
580}
581
582object *
583archetype::get (const char *name)
584{
586 archetype *at = archetype::find (name); 585 archetype *at = find (name);
587 586
588 if (!at) 587 if (!at)
589 return create_singularity (name); 588 return create_singularity (name);
590 589
591 return arch_to_object (at); 590 return at->instance ();
592}
593
594/*
595 * Hash-function used by the arch-hashtable.
596 */
597
598unsigned long
599hasharch (const char *str, int tablesize)
600{
601 unsigned long hash = 0;
602 unsigned int i = 0;
603 const char *p;
604
605 /* use the one-at-a-time hash function, which supposedly is
606 * better than the djb2-like one used by perl5.005, but
607 * certainly is better then the bug used here before.
608 * see http://burtleburtle.net/bob/hash/doobs.html
609 */
610 for (p = str; i < MAXSTRING && *p; p++, i++)
611 {
612 hash += *p;
613 hash += hash << 10;
614 hash ^= hash >> 6;
615 }
616
617 hash += hash << 3;
618 hash ^= hash >> 11;
619 hash += hash << 15;
620
621 return hash % tablesize;
622}
623
624/*
625 * Finds, using the hashtable, which archetype matches the given name.
626 * returns a pointer to the found archetype, otherwise NULL.
627 */
628archetype *
629archetype::find (const char *name)
630{
631 if (!name)
632 return 0;
633
634 AUTODECL (i, ht.find (name));
635
636 if (i == ht.end ())
637 return 0;
638 else
639 return i->second;
640}
641
642/*
643 * Adds an archetype to the hashtable.
644 */
645void
646archetype::hash_add ()
647{
648 ht.insert (std::make_pair (name, this));
649}
650
651void
652archetype::hash_del ()
653{
654 ht.erase (name);
655} 591}
656 592
657/* 593/*
658 * Returns the first archetype using the given type. 594 * Returns the first archetype using the given type.
659 * Used in treasure-generation. 595 * Used in treasure-generation.
660 */ 596 */
661archetype * 597archetype *
662type_to_archetype (int type) 598type_to_archetype (int type)
663{ 599{
664 archetype *at; 600 for_all_archetypes (at)
665 601 if (at->type == type && at->head_ () != at)
666 for (at = first_archetype; at; at = at->more == 0 ? at->next : at->more)
667 if (at->clone.type == type)
668 return at; 602 return at;
669 603
670 return 0; 604 return 0;
671} 605}
672 606
673/* 607/*
674 * Returns a new object copied from the first archetype matching 608 * Returns a new object copied from the first archetype matching
675 * the given type. 609 * the given type.
676 * Used in treasure-generation. 610 * Used in treasure-generation.
677 */ 611 */
678
679object * 612object *
680clone_arch (int type) 613clone_arch (int type)
681{ 614{
682 archetype *at; 615 archetype *at = type_to_archetype (type);
683 616
684 if ((at = type_to_archetype (type)) == NULL) 617 if (!at)
685 { 618 {
686 LOG (llevError, "Can't clone archetype %d\n", type); 619 LOG (llevError, "Can't clone archetype %d\n", type);
687 return 0; 620 return 0;
688 } 621 }
689 622
690 object *op = at->clone.clone (); 623 return at->instance ();
691 op->instantiate ();
692 return op;
693} 624}
694 625
695/* 626/*
696 * member: make instance from class 627 * member: make instance from class
697 */ 628 */
698
699object * 629object *
700object_create_arch (archetype *at) 630object_create_arch (archetype *at)
701{ 631{
702 object *op, *prev = 0, *head = 0; 632 object *op, *prev = 0, *head = 0;
703 633
704 while (at) 634 while (at)
705 { 635 {
706 op = arch_to_object (at); 636 op = at->instance ();
637
707 op->x = at->clone.x; 638 op->x = at->x;
708 op->y = at->clone.y; 639 op->y = at->y;
709 640
710 if (head) 641 if (head)
711 op->head = head, prev->more = op; 642 op->head = head, prev->more = op;
712 643
713 if (!head) 644 if (!head)
714 head = op; 645 head = op;
715 646
716 prev = op; 647 prev = op;
717 at = at->more; 648 at = (archetype *)at->more;
718 } 649 }
719 650
720 return (head); 651 return head;
721} 652}
722 653
654//-GPL
655

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