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Comparing deliantra/server/common/arch.C (file contents):
Revision 1.16 by root, Sun Sep 10 16:00:23 2006 UTC vs.
Revision 1.73 by root, Sun Apr 20 00:44:12 2008 UTC

1
2/* 1/*
3 * static char *rcsid_arch_c = 2 * This file is part of Deliantra, the Roguelike Realtime MMORPG.
4 * "$Id: arch.C,v 1.16 2006/09/10 16:00:23 root Exp $"; 3 *
5 */ 4 * Copyright (©) 2005,2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
6
7/*
8 CrossFire, A Multiplayer game for X-windows
9
10 Copyright (C) 2002 Mark Wedel & Crossfire Development Team 5 * Copyright (©) 2002,2007 Mark Wedel & Crossfire Development Team
11 Copyright (C) 1992 Frank Tore Johansen 6 * Copyright (©) 1992,2007 Frank Tore Johansen
12 7 *
13 This program is free software; you can redistribute it and/or modify 8 * Deliantra is free software: you can redistribute it and/or modify
14 it under the terms of the GNU General Public License as published by 9 * it under the terms of the GNU General Public License as published by
15 the Free Software Foundation; either version 2 of the License, or 10 * the Free Software Foundation, either version 3 of the License, or
16 (at your option) any later version. 11 * (at your option) any later version.
17 12 *
18 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,
19 but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
20 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21 GNU General Public License for more details. 16 * GNU General Public License for more details.
22 17 *
23 You should have received a copy of the GNU General Public License 18 * You should have received a copy of the GNU General Public License
24 along with this program; if not, write to the Free Software 19 * along with this program. If not, see <http://www.gnu.org/licenses/>.
25 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 20 *
26 21 * The authors can be reached via e-mail to <support@deliantra.net>
27 The authors can be reached via e-mail at crossfire-devel@real-time.com
28*/ 22 */
29 23
30#include <cassert> 24#include <cassert>
31 25
32#include <tr1/unordered_map>
33
34#include <global.h> 26#include <global.h>
35#include <arch.h>
36#include <funcpoint.h> 27#include <funcpoint.h>
37#include <loader.h> 28#include <loader.h>
38 29
39/* IF set, does a little timing on the archetype load. */ 30#include <tr1/functional>
40#define TIME_ARCH_LOAD 0 31#include <tr1/unordered_map>
41 32
42static void add_arch (archetype *at); 33archetype *loading_arch; // ugly flag to object laoder etc. to suppress/request special processing
34archetype *archetype::empty;
43 35
44static archetype *arch_table[ARCHTABLE];
45int arch_cmp = 0; /* How many strcmp's */
46int arch_search = 0; /* How many searches */
47int arch_init; /* True if doing arch initialization */
48
49/* The naming of these functions is really poor - they are all
50 * pretty much named '.._arch_...', but they may more may not
51 * return archetypes. Some make the arch_to_object call, and thus
52 * return an object. Perhaps those should be called 'archob' functions
53 * to denote they return an object derived from the archetype.
54 * MSW 2003-04-29
55 */
56
57#if USE_UNORDERED_MAP
58// the hashtable 36// the hashtable
59typedef
60 std::tr1::unordered_map < 37typedef std::tr1::unordered_map
61size_t, archetype *> 38 <
39 const char *,
40 arch_ptr,
41 str_hash,
42 str_equal,
43 slice_allocator< std::pair<const char *const, arch_ptr> >
62 HT; 44 > HT;
63 45
64static 46static HT ht (5000);
65 HT 47archvec archetypes;
66 ht; 48
67#endif 49// the vector of other_arch references to be resolved
50static std::vector< std::pair<arch_ptr *, shstr> > postponed_arch_ref;
51// the vector of loaded but not yet committed archetypes
52static std::vector<archetype *> postponed_arch;
68 53
69/** 54/**
70 * GROS - This function retrieves an archetype given the name that appears 55 * GROS - This function retrieves an archetype given the name that appears
71 * during the game (for example, "writing pen" instead of "stylus"). 56 * during the game (for example, "writing pen" instead of "stylus").
72 * It does not use the hashtable system, but browse the whole archlist each time. 57 * It does not use the hashtable system, but browse the whole archlist each time.
78 * - the archetype found or null if nothing was found. 63 * - the archetype found or null if nothing was found.
79 */ 64 */
80archetype * 65archetype *
81find_archetype_by_object_name (const char *name) 66find_archetype_by_object_name (const char *name)
82{ 67{
83 archetype * 68 shstr_cmp name_cmp (name);
84 at;
85 69
86 if (name == NULL) 70 for_all_archetypes (at)
87 return (archetype *) NULL; 71 if (at->name == name_cmp)
88
89 for (at = first_archetype; at != NULL; at = at->next)
90 {
91 if (!strcmp (at->clone.name, name))
92 return at; 72 return at;
93 } 73
94 return NULL; 74 return 0;
95} 75}
96 76
97/** 77/**
98 * This function retrieves an archetype by type and name that appears during 78 * This function retrieves an archetype by type and name that appears during
99 * the game. It is basically the same as find_archetype_by_object_name() 79 * the game. It is basically the same as find_archetype_by_object_name()
100 * except that it considers only items of the given type. 80 * except that it considers only items of the given type.
101 */ 81 */
102archetype * 82archetype *
103find_archetype_by_object_type_name (int type, const char *name) 83find_archetype_by_object_type_name (int type, const char *name)
104{ 84{
105 archetype * 85 shstr_cmp name_cmp (name);
106 at;
107 86
108 if (name == NULL) 87 for_all_archetypes (at)
109 return NULL; 88 if (at->name == name_cmp && at->type == type)
110
111 for (at = first_archetype; at != NULL; at = at->next)
112 {
113 if (at->clone.type == type && strcmp (at->clone.name, name) == 0)
114 return at; 89 return at;
115 }
116 90
117 return NULL; 91 return 0;
118} 92}
119 93
120/* This is a lot like the above function. Instead, we are trying to match 94/* This is a lot like the above function. Instead, we are trying to match
121 * the arch->skill values. type is the type of object to match 95 * the arch->skill values. type is the type of object to match
122 * against (eg, to only match against skills or only skill objects for example). 96 * against (eg, to only match against skills or only skill objects for example).
123 * If type is -1, ew don't match on type. 97 * If type is -1, ew don't match on type.
124 */ 98 */
125object * 99object *
126get_archetype_by_skill_name (const char *skill, int type) 100get_archetype_by_skill_name (const char *skill, int type)
127{ 101{
128 archetype * 102 shstr_cmp skill_cmp (skill);
129 at;
130 103
131 if (skill == NULL) 104 for_all_archetypes (at)
132 return NULL; 105 if (at->skill == skill_cmp && (type == -1 || type == at->type))
133
134 for (at = first_archetype; at != NULL; at = at->next)
135 {
136 if (((type == -1) || (type == at->clone.type)) && (!strcmp (at->clone.skill, skill)))
137 return arch_to_object (at); 106 return arch_to_object (at);
138 } 107
139 return NULL; 108 return 0;
140} 109}
141 110
142/* similiar to above - this returns the first archetype 111/* similiar to above - this returns the first archetype
143 * that matches both the type and subtype. type and subtype 112 * that matches both the type and subtype. type and subtype
144 * can be -1 to say ignore, but in this case, the match it does 113 * can be -1 to say ignore, but in this case, the match it does
147 * (eg, skills) 116 * (eg, skills)
148 */ 117 */
149archetype * 118archetype *
150get_archetype_by_type_subtype (int type, int subtype) 119get_archetype_by_type_subtype (int type, int subtype)
151{ 120{
152 archetype * 121 for_all_archetypes (at)
153 at;
154
155 for (at = first_archetype; at != NULL; at = at->next)
156 {
157 if (((type == -1) || (type == at->clone.type)) && (subtype == -1 || subtype == at->clone.subtype)) 122 if ((type == -1 || type == at->type) && (subtype == -1 || subtype == at->subtype))
158 return at; 123 return at;
159 } 124
160 return NULL; 125 return 0;
161} 126}
162 127
163/** 128/**
164 * GROS - this returns a new object given the name that appears during the game 129 * GROS - this returns a new object given the name that appears during the game
165 * (for example, "writing pen" instead of "stylus"). 130 * (for example, "writing pen" instead of "stylus").
173 * but it otherwise had a big memory leak. 138 * but it otherwise had a big memory leak.
174 */ 139 */
175object * 140object *
176get_archetype_by_object_name (const char *name) 141get_archetype_by_object_name (const char *name)
177{ 142{
178 archetype *
179 at;
180 char
181 tmpname[MAX_BUF]; 143 char tmpname[MAX_BUF];
182 int 144 int i;
183 i;
184 145
185 strncpy (tmpname, name, MAX_BUF - 1); 146 assign (tmpname, name);
186 tmpname[MAX_BUF - 1] = 0; 147
187 for (i = strlen (tmpname); i > 0; i--) 148 for (i = strlen (tmpname); i > 0; i--)
188 { 149 {
189 tmpname[i] = 0; 150 tmpname[i] = 0;
151
190 at = find_archetype_by_object_name (tmpname); 152 if (archetype *at = find_archetype_by_object_name (tmpname))
191 if (at != NULL)
192 {
193 return arch_to_object (at); 153 return arch_to_object (at);
194 }
195 } 154 }
155
196 return create_singularity (name); 156 return create_singularity (name);
197} 157}
198 158
199 /* This is a subset of the parse_id command. Basically, name can be 159/* This is a subset of the parse_id command. Basically, name can be
200 * a string seperated lists of things to match, with certain keywords. 160 * a string seperated lists of things to match, with certain keywords.
201 * pl is the player (only needed to set count properly) 161 * pl is the player (only needed to set count properly)
202 * op is the item we are trying to match. Calling function takes care 162 * op is the item we are trying to match. Calling function takes care
203 * of what action might need to be done and if it is valid 163 * of what action might need to be done and if it is valid
204 * (pickup, drop, etc.) Return NONZERO if we have a match. A higher 164 * (pickup, drop, etc.) Return NONZERO if we have a match. A higher
205 * value means a better match. 0 means no match. 165 * value means a better match. 0 means no match.
206 * 166 *
207 * Brief outline of the procedure: 167 * Brief outline of the procedure:
208 * We take apart the name variable into the individual components. 168 * We take apart the name variable into the individual components.
209 * cases for 'all' and unpaid are pretty obvious. 169 * cases for 'all' and unpaid are pretty obvious.
210 * Next, we check for a count (either specified in name, or in the 170 * Next, we check for a count (either specified in name, or in the
211 * player object.) 171 * player object.)
212 * If count is 1, make a quick check on the name. 172 * If count is 1, make a quick check on the name.
213 * IF count is >1, we need to make plural name. Return if match. 173 * IF count is >1, we need to make plural name. Return if match.
214 * Last, make a check on the full name. 174 * Last, make a check on the full name.
215 */ 175 */
216int 176int
217item_matched_string (object *pl, object *op, const char *name) 177item_matched_string (object *pl, object *op, const char *name)
218{ 178{
219 char *
220 cp,
221 local_name[MAX_BUF]; 179 char *cp, local_name[MAX_BUF];
222 int 180 int count, retval = 0;
223 count,
224 retval = 0;
225 181
226 strcpy (local_name, name); /* strtok is destructive to name */ 182 assign (local_name, name); /* strtok is destructive to name */
227 183
228 for (cp = strtok (local_name, ","); cp; cp = strtok (NULL, ",")) 184 for (cp = strtok (local_name, ","); cp; cp = strtok (NULL, ","))
229 { 185 {
230 while (cp[0] == ' ') 186 while (cp[0] == ' ')
231 ++cp; /* get rid of spaces */ 187 ++cp; /* get rid of spaces */
281 retval = 15; 237 retval = 15;
282 else if (!strncasecmp (cp, query_base_name (op, 0), strlen (cp))) 238 else if (!strncasecmp (cp, query_base_name (op, 0), strlen (cp)))
283 retval = 14; 239 retval = 14;
284 else if (!strncasecmp (cp, query_base_name (op, 1), strlen (cp))) 240 else if (!strncasecmp (cp, query_base_name (op, 1), strlen (cp)))
285 retval = 14; 241 retval = 14;
286
287 /* Do substring checks, so things like 'Str+1' will match. 242 /* Do substring checks, so things like 'Str+1' will match.
288 * retval of these should perhaps be lower - they are lower 243 * retval of these should perhaps be lower - they are lower
289 * then the specific strcasecmp aboves, but still higher than 244 * then the specific strcasecmp aboves, but still higher than
290 * some other match criteria. 245 * some other match criteria.
291 */ 246 */
293 retval = 12; 248 retval = 12;
294 else if (strstr (query_base_name (op, 0), cp)) 249 else if (strstr (query_base_name (op, 0), cp))
295 retval = 12; 250 retval = 12;
296 else if (strstr (query_short_name (op), cp)) 251 else if (strstr (query_short_name (op), cp))
297 retval = 12; 252 retval = 12;
298
299 /* Check against plural/non plural based on count. */ 253 /* Check against plural/non plural based on count. */
300 else if (count > 1 && !strcasecmp (cp, op->name_pl)) 254 else if (count > 1 && !strcasecmp (cp, op->name_pl))
301 {
302 retval = 6; 255 retval = 6;
303 }
304 else if (count == 1 && !strcasecmp (op->name, cp)) 256 else if (count == 1 && !strcasecmp (op->name, cp))
305 {
306 retval = 6; 257 retval = 6;
307 }
308 /* base name matched - not bad */ 258 /* base name matched - not bad */
309 else if (strcasecmp (cp, op->name) == 0 && !count) 259 else if (strcasecmp (cp, op->name) == 0 && !count)
310 retval = 4; 260 retval = 4;
311 /* Check for partial custom name, but give a real low priority */ 261 /* Check for partial custom name, but give a real low priority */
312 else if (op->custom_name && strstr (op->custom_name, cp)) 262 else if (op->custom_name && strstr (op->custom_name, cp))
314 264
315 if (retval) 265 if (retval)
316 { 266 {
317 if (pl->type == PLAYER) 267 if (pl->type == PLAYER)
318 pl->contr->count = count; 268 pl->contr->count = count;
269
319 return retval; 270 return retval;
320 } 271 }
321 } 272 }
273
322 return 0; 274 return 0;
323} 275}
324 276
325/* 277archetype::archetype (const char *name)
326 * Initialises the internal linked list of archetypes (read from file). 278{
327 * Then the global "empty_archetype" pointer is initialised. 279 arch = this;
328 * Then the blocksview[] array is initialised. 280 this->archname = this->name = this->name_pl = name;
329 */ 281}
282
283archetype::~archetype ()
284{
285 unlink ();
286}
330 287
331void 288void
332init_archetypes (void) 289archetype::link ()
333{ /* called from add_player() and edit() */ 290{
334 if (first_archetype != NULL) /* Only do this once */ 291 ht.insert (std::make_pair (archname, this));
335 return;
336 arch_init = 1;
337 load_archetypes ();
338 arch_init = 0;
339 empty_archetype = find_archetype ("empty_archetype");
340 292
341/* init_blocksview();*/ 293 if (!archetypes.contains (this))
294 archetypes.insert (this);
342} 295}
343
344/*
345 * Stores debug-information about how efficient the hashtable
346 * used for archetypes has been in the static errmsg array.
347 */
348 296
349void 297void
350arch_info (object *op) 298archetype::unlink ()
351{ 299{
352 sprintf (errmsg, "%d searches and %d strcmp()'s", arch_search, arch_cmp); 300 ht.erase (archname);
353 new_draw_info (NDI_BLACK, 0, op, errmsg);
354}
355 301
302 if (archetypes.contains (this))
303 archetypes.erase (this);
304}
305
356/* 306/*
357 * Initialise the hashtable used by the archetypes. 307 * Finds, using the hashtable, which archetype matches the given name.
308 * returns a pointer to the found archetype, otherwise NULL.
358 */ 309 */
310archetype *
311archetype::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
324archetype *
325archetype::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
440fail:
441 for (auto (p, parts.begin ()); p != parts.end (); ++p)
442 (*p)->destroy (true);
443
444 return 0;
445}
359 446
360void 447void
361clear_archetable (void) 448archetype::postpone_arch_ref (arch_ptr &ref, const_utf8_string other_arch)
362{ 449{
363 memset ((void *) arch_table, 0, ARCHTABLE * sizeof (archetype *)); 450 ref = 0;
451 postponed_arch_ref.push_back (std::pair<arch_ptr *, shstr>(&ref, shstr (other_arch)));
364} 452}
365
366/*
367 * An alternative way to init the hashtable which is slower, but _works_...
368 */
369 453
370void 454void
371init_archetable (void) 455archetype::commit_load ()
372{ 456{
373 archetype * 457 // unlink old archetypes and link in new ones */
374 at; 458 for (auto (p, postponed_arch.begin ()); p != postponed_arch.end (); ++p)
375
376 LOG (llevDebug, " Setting up archetable...\n");
377
378 for (at = first_archetype; at != NULL; at = (at->more == NULL) ? at->next : at->more)
379 add_arch (at);
380
381 LOG (llevDebug, "done\n");
382}
383
384/*
385 * Dumps an archetype to debug-level output.
386 */
387
388void
389dump_arch (archetype *at)
390{
391 dump_object (&at->clone);
392}
393
394/*
395 * Dumps _all_ archetypes to debug-level output.
396 * If you run crossfire with debug, and enter DM-mode, you can trigger
397 * this with the O key.
398 */
399
400void
401dump_all_archetypes (void)
402{
403 archetype *
404 at;
405
406 for (at = first_archetype; at != NULL; at = (at->more == NULL) ? at->next : at->more)
407 {
408 dump_arch (at);
409 fprintf (logfile, "%s\n", errmsg);
410 } 459 {
411} 460 archetype *at = *p;
412 461
413void 462 if (archetype *old = find (at->archname))
414free_all_archs (void) 463 old->unlink ();
415{
416 archetype *
417 at, *
418 next;
419 int
420 i = 0, f = 0;
421 464
422 for (at = first_archetype; at != NULL; at = next) 465 at->link ();
423 { 466 }
424 if (at->more)
425 next = at->more;
426 else
427 next = at->next;
428 467
429 delete 468 postponed_arch.clear ();
430 at;
431 469
432 i++; 470 // now resolve arch references
471 for (auto (p, postponed_arch_ref.begin ()); p != postponed_arch_ref.end (); ++p)
433 } 472 {
434 LOG (llevDebug, "Freed %d archetypes, %d faces\n", i, f); 473 arch_ptr *ap = p->first;
435} 474 archetype *at = find (p->second);
436 475
437archetype::archetype () 476 if (!at)
438{ 477 LOG (llevError, "unable to resolve postponed arch reference to '%s'", &p->second);
439 clear_object (&clone); /* to initial state other also */
440 CLEAR_FLAG (&clone, FLAG_FREED); /* This shouldn't matter, since copy_object() */
441 SET_FLAG (&clone, FLAG_REMOVED); /* doesn't copy these flags... */
442}
443 478
444archetype::~archetype () 479 *ap = at;
445{
446}
447
448/*
449 * Reads/parses the archetype-file, and copies into a linked list
450 * of archetype-structures.
451 */
452void
453first_arch_pass (object_thawer & fp)
454{
455 archetype *
456 at, *
457 head = NULL, *last_more = NULL;
458
459 at->clone.arch = first_archetype = at = new archetype;
460
461 while (int i = load_object (fp, &at->clone, 0))
462 { 480 }
463 at->clone.speed_left = (float) (-0.1);
464 /* copy the body_info to the body_used - this is only really
465 * need for monsters, but doesn't hurt to do it for everything.
466 * by doing so, when a monster is created, it has good starting
467 * values for the body_used info, so when items are created
468 * for it, they can be properly equipped.
469 */
470 memcpy (&at->clone.body_used, &at->clone.body_info, sizeof (at->clone.body_info));
471 481
472 switch (i) 482 postponed_arch_ref.clear ();
473 {
474 case LL_NORMAL: /* A new archetype, just link it with the previous */
475 if (last_more != NULL)
476 last_more->next = at;
477 if (head != NULL)
478 head->next = at;
479 head = last_more = at;
480#if 0
481 if (!op->type)
482 LOG (llevDebug, " WARNING: Archetype %s has no type info!\n", op->arch->name);
483#endif
484 at->tail_x = 0;
485 at->tail_y = 0;
486 break;
487 483
488 case LL_MORE: /* Another part of the previous archetype, link it correctly */ 484 empty = find (shstr_empty_archetype);
489
490 at->head = head;
491 at->clone.head = &head->clone;
492 if (last_more != NULL)
493 {
494 last_more->more = at;
495 last_more->clone.more = &at->clone;
496 }
497 last_more = at;
498
499 /* If this multipart image is still composed of individual small
500 * images, don't set the tail_.. values. We can't use them anyways,
501 * and setting these to zero makes the map sending to the client much
502 * easier as just looking at the head, we know what to do.
503 */
504 if (at->clone.face != head->clone.face)
505 {
506 head->tail_x = 0;
507 head->tail_y = 0;
508 }
509 else
510 {
511 if (at->clone.x > head->tail_x)
512 head->tail_x = at->clone.x;
513 if (at->clone.y > head->tail_y)
514 head->tail_y = at->clone.y;
515 }
516 break;
517
518 }
519
520 at = new archetype;
521
522 at->clone.arch = at;
523 }
524
525 delete at;
526}
527
528/*
529 * Reads the archetype file once more, and links all pointers between
530 * archetypes.
531 */
532
533void
534second_arch_pass (object_thawer & thawer)
535{
536 char
537 buf[MAX_BUF], *
538 variable = buf, *argument, *cp;
539 archetype *
540 at = NULL, *other;
541
542 while (fgets (buf, MAX_BUF, thawer) != NULL)
543 {
544 if (*buf == '#')
545 continue;
546 if ((argument = strchr (buf, ' ')) != NULL)
547 {
548 *argument = '\0', argument++;
549 cp = argument + strlen (argument) - 1;
550 while (isspace (*cp))
551 {
552 *cp = '\0';
553 cp--;
554 }
555 }
556 if (!strcmp ("Object", variable))
557 {
558 if ((at = find_archetype (argument)) == NULL)
559 LOG (llevError, "Warning: failed to find arch %s\n", argument);
560 }
561 else if (!strcmp ("other_arch", variable))
562 {
563 if (at != NULL && at->clone.other_arch == NULL)
564 {
565 if ((other = find_archetype (argument)) == NULL)
566 LOG (llevError, "Warning: failed to find other_arch %s\n", argument);
567 else if (at != NULL)
568 at->clone.other_arch = other;
569 }
570 }
571 else if (!strcmp ("randomitems", variable))
572 {
573 if (at != NULL)
574 {
575 treasurelist *
576 tl = find_treasurelist (argument);
577
578 if (tl == NULL)
579 LOG (llevError, "Failed to link treasure to arch (%s): %s\n", &at->name, argument);
580 else
581 at->clone.randomitems = tl;
582 }
583 }
584 }
585}
586
587#ifdef DEBUG
588void
589check_generators (void)
590{
591 archetype *
592 at;
593
594 for (at = first_archetype; at != NULL; at = at->next)
595 if (QUERY_FLAG (&at->clone, FLAG_GENERATOR) && at->clone.other_arch == NULL)
596 LOG (llevError, "Warning: %s is generator but lacks other_arch.\n", &at->name);
597}
598#endif
599
600/*
601 * First initialises the archtype hash-table (init_archetable()).
602 * Reads and parses the archetype file (with the first and second-pass
603 * functions).
604 * Then initialises treasures by calling load_treasures().
605 */
606
607void
608load_archetypes (void)
609{
610 char
611 filename[MAX_BUF];
612
613#if TIME_ARCH_LOAD
614 struct timeval
615 tv1,
616 tv2;
617#endif
618
619 sprintf (filename, "%s/%s", settings.datadir, settings.archetypes);
620 LOG (llevDebug, "Reading archetypes from %s:\n", filename);
621
622 {
623 object_thawer
624 thawer (filename);
625
626 clear_archetable ();
627 LOG (llevDebug, " arch-pass 1...\n");
628 first_arch_pass (thawer);
629 LOG (llevDebug, " done\n");
630 }
631
632 init_archetable ();
633 warn_archetypes = 1;
634
635 {
636 object_thawer
637 thawer (filename);
638
639 LOG (llevDebug, " loading treasure...\n");
640 load_treasures ();
641 LOG (llevDebug, " done\n arch-pass 2...\n");
642 second_arch_pass (thawer);
643 LOG (llevDebug, " done\n");
644#ifdef DEBUG
645 check_generators ();
646#endif
647 }
648 LOG (llevDebug, " done\n");
649} 485}
650 486
651/* 487/*
652 * Creates and returns a new object which is a copy of the given archetype. 488 * Creates and returns a new object which is a copy of the given archetype.
653 * This function returns NULL on failure. 489 * This function returns NULL on failure.
654 */ 490 */
655
656object * 491object *
657arch_to_object (archetype *at) 492arch_to_object (archetype *at)
658{ 493{
659 object * 494 if (!at)
660 op;
661
662 if (at == NULL)
663 { 495 {
664 if (warn_archetypes)
665 LOG (llevError, "Couldn't find archetype.\n"); 496 LOG (llevError, "Couldn't find archetype.\n");
666
667 return NULL; 497 return 0;
668 } 498 }
669 499
670 op = get_object (); 500 object *op = at->clone ();
671 copy_object (&at->clone, op);
672 op->arch = at; 501 op->arch = at;
673 op->instantiate (); 502 op->instantiate ();
503
674 return op; 504 return op;
505}
506
507object *
508archetype::instance ()
509{
510 return arch_to_object (this);
675} 511}
676 512
677/* 513/*
678 * Creates an object. This function is called by get_archetype() 514 * Creates an object. This function is called by get_archetype()
679 * if it fails to find the appropriate archetype. 515 * if it fails to find the appropriate archetype.
680 * Thus get_archetype() will be guaranteed to always return 516 * Thus get_archetype() will be guaranteed to always return
681 * an object, and never NULL. 517 * an object, and never NULL.
682 */ 518 */
683
684object * 519object *
685create_singularity (const char *name) 520create_singularity (const char *name)
686{ 521{
687 object * 522 LOG (llevError | logBacktrace, "FATAL: creating singularity for '%s'.\n", name);
688 op; 523
689 char 524 if (!strcmp (name, "bug"))
525 abort ();
526
690 buf[MAX_BUF]; 527 char buf[MAX_BUF];
528 sprintf (buf, "bug, please report (%s)", name);
691 529
692 sprintf (buf, "%s (%s)", ARCH_SINGULARITY, name); 530 object *op = get_archetype ("bug");
693 op = get_object ();
694 op->name = op->name_pl = buf; 531 op->name = op->name_pl = buf;
695 SET_FLAG (op, FLAG_NO_PICK); 532
696 return op; 533 return op;
697} 534}
698 535
699/* 536/*
700 * Finds which archetype matches the given name, and returns a new 537 * Finds which archetype matches the given name, and returns a new
701 * object containing a copy of the archetype. 538 * object containing a copy of the archetype.
702 */ 539 */
703
704object * 540object *
705get_archetype (const char *name) 541get_archetype (const char *name)
706{ 542{
707 archetype * 543 archetype *at = archetype::find (name);
708 at;
709 544
710 at = find_archetype (name); 545 if (!at)
711 if (at == NULL)
712 return create_singularity (name); 546 return create_singularity (name);
713 547
714 return arch_to_object (at); 548 return arch_to_object (at);
715}
716
717/*
718 * Hash-function used by the arch-hashtable.
719 */
720
721unsigned long
722hasharch (const char *str, int tablesize)
723{
724 unsigned long
725 hash = 0;
726 unsigned int
727 i = 0;
728 const char *
729 p;
730
731 /* use the one-at-a-time hash function, which supposedly is
732 * better than the djb2-like one used by perl5.005, but
733 * certainly is better then the bug used here before.
734 * see http://burtleburtle.net/bob/hash/doobs.html
735 */
736 for (p = str; i < MAXSTRING && *p; p++, i++)
737 {
738 hash += *p;
739 hash += hash << 10;
740 hash ^= hash >> 6;
741 }
742
743 hash += hash << 3;
744 hash ^= hash >> 11;
745 hash += hash << 15;
746
747 return hash % tablesize;
748}
749
750/*
751 * Finds, using the hashtable, which archetype matches the given name.
752 * returns a pointer to the found archetype, otherwise NULL.
753 */
754
755archetype *
756find_archetype (const char *name)
757{
758#if USE_UNORDERED_MAP
759 name = shstr::find (name);
760
761 if (!name)
762 return 0;
763
764 HT::const_iterator i = ht.find ((size_t) name);
765
766 if (i == ht.end ())
767 return 0;
768 else
769 return i->second;
770#endif
771
772 archetype *
773 at;
774 unsigned long
775 index;
776
777 if (name == NULL)
778 return (archetype *) NULL;
779
780 index = hasharch (name, ARCHTABLE);
781 arch_search++;
782 for (;;)
783 {
784 at = arch_table[index];
785 if (at == NULL)
786 {
787 if (warn_archetypes)
788 LOG (llevError, "Couldn't find archetype %s\n", name);
789 return NULL;
790 }
791 arch_cmp++;
792 if (!strcmp ((const char *) at->name, name))
793 return at;
794 if (++index >= ARCHTABLE)
795 index = 0;
796 }
797}
798
799/*
800 * Adds an archetype to the hashtable.
801 */
802
803static void
804add_arch (archetype *at)
805{
806#if USE_UNORDERED_MAP
807 ht.insert (std::make_pair ((size_t) (const char *) at->name, at));
808#endif
809
810 int
811 index = hasharch ((const char *) at->name, ARCHTABLE), org_index = index;
812
813 for (;;)
814 {
815 if (arch_table[index] == NULL)
816 {
817 arch_table[index] = at;
818 return;
819 }
820
821 if (++index == ARCHTABLE)
822 index = 0;
823
824 if (index == org_index)
825 fatal (ARCHTABLE_TOO_SMALL);
826 }
827} 549}
828 550
829/* 551/*
830 * Returns the first archetype using the given type. 552 * Returns the first archetype using the given type.
831 * Used in treasure-generation. 553 * Used in treasure-generation.
832 */ 554 */
833
834archetype * 555archetype *
835type_to_archetype (int type) 556type_to_archetype (int type)
836{ 557{
837 archetype * 558 for_all_archetypes (at)
838 at; 559 if (at->type == type && at->head_ () != at)
839
840 for (at = first_archetype; at != NULL; at = (at->more == NULL) ? at->next : at->more)
841 if (at->clone.type == type)
842 return at; 560 return at;
561
843 return NULL; 562 return 0;
844} 563}
845 564
846/* 565/*
847 * Returns a new object copied from the first archetype matching 566 * Returns a new object copied from the first archetype matching
848 * the given type. 567 * the given type.
849 * Used in treasure-generation. 568 * Used in treasure-generation.
850 */ 569 */
851
852object * 570object *
853clone_arch (int type) 571clone_arch (int type)
854{ 572{
855 archetype * 573 archetype *at;
856 at;
857 object *
858 op = get_object ();
859 574
860 if ((at = type_to_archetype (type)) == NULL) 575 if ((at = type_to_archetype (type)) == NULL)
861 { 576 {
862 LOG (llevError, "Can't clone archetype %d\n", type); 577 LOG (llevError, "Can't clone archetype %d\n", type);
863 free_object (op);
864 return NULL; 578 return 0;
865 } 579 }
866 copy_object (&at->clone, op); 580
581 object *op = at->clone ();
867 op->instantiate (); 582 op->instantiate ();
868 return op; 583 return op;
869} 584}
870 585
871/* 586/*
872 * member: make instance from class 587 * member: make instance from class
873 */ 588 */
874
875object * 589object *
876object_create_arch (archetype *at) 590object_create_arch (archetype *at)
877{ 591{
878 object * 592 object *op, *prev = 0, *head = 0;
879 op, *
880 prev = NULL, *head = NULL;
881 593
882 while (at) 594 while (at)
883 { 595 {
884 op = arch_to_object (at); 596 op = arch_to_object (at);
597
885 op->x = at->clone.x; 598 op->x = at->x;
886 op->y = at->clone.y; 599 op->y = at->y;
600
887 if (head) 601 if (head)
888 op->head = head, prev->more = op; 602 op->head = head, prev->more = op;
603
889 if (!head) 604 if (!head)
890 head = op; 605 head = op;
606
891 prev = op; 607 prev = op;
892 at = at->more; 608 at = (archetype *)at->more;
893 } 609 }
610
894 return (head); 611 return head;
895} 612}
896 613
897/*** end of arch.c ***/

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