ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/deliantra/server/common/region.C
(Generate patch)

Comparing deliantra/server/common/region.C (file contents):
Revision 1.7 by root, Sat Sep 16 22:24:12 2006 UTC vs.
Revision 1.19 by root, Mon Jan 29 14:46:01 2007 UTC

1/* 1/*
2 CrossFire, A Multiplayer game for X-windows 2 * CrossFire, A Multiplayer game for X-windows
3 3 *
4 * Copyright (C) 2005, 2006, 2007 Marc Lehmann & Crossfire+ Development Team
4 Copyright (C) 2001-2003 Mark Wedel & Crossfire Development Team 5 * Copyright (C) 2001-2003 Mark Wedel & Crossfire Development Team
5 Copyright (C) 1992 Frank Tore Johansen 6 * Copyright (C) 1992 Frank Tore Johansen
6 7 *
7 This program is free software; you can redistribute it and/or modify 8 * This program is free software; you can redistribute it and/or modify
8 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
9 the Free Software Foundation; either version 2 of the License, or 10 * the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version. 11 * (at your option) any later version.
11 12 *
12 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,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details. 16 * GNU General Public License for more details.
16 17 *
17 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
18 along with this program; if not, write to the Free Software 19 * along with this program; if not, write to the Free Software
19 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 20 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 21 *
21 The authors can be reached via e-mail at <crossfire@schmorp.de> 22 * The authors can be reached via e-mail at <crossfire@schmorp.de>
22*/ 23 */
23
24 24
25#include <global.h> 25#include <global.h>
26
27#ifndef WIN32 /* ---win32 exclude header */
28# include <unistd.h> 26#include <unistd.h>
29#endif /* win32 */ 27
28region *
29region::default_region ()
30{
31 for (region *reg = first_region; reg; reg = reg->next)
32 if (reg->fallback)
33 return reg;
34
35 return first_region;
36}
30 37
31/* 38/*
32 * Pass a char array, returns a pointer to the region of the same name. 39 * Pass a char array, returns a pointer to the region of the same name.
33 * if it can't find a region of the same name it returns the first region 40 * if it can't find a region of the same name it returns the first region
34 * with the 'fallback' property set. 41 * with the 'fallback' property set.
35 * if it can't find a matching name /or/ a fallback region it logs an info message 42 * if it can't find a matching name /or/ a fallback region it logs an info message
36 * message and returns NULL 43 * message and returns NULL
37 * used by the map parsing code. 44 * used by the map parsing code.
38 */ 45 */
39region * 46region *
40get_region_by_name (const char *region_name) 47region::find (const char *name)
41{ 48{
42 region *reg;
43 char *p = strchr (region_name, '\n');
44
45 if (p)
46 *p = '\0';
47 for (reg = first_region; reg != NULL; reg = reg->next) 49 for (region *reg = first_region; reg; reg = reg->next)
48 if (!strcmp (reg->name, region_name)) 50 if (!strcmp (reg->name, name))
49 return reg; 51 return reg;
50 52
51 for (reg = first_region; reg != NULL; reg = reg->next)
52 {
53 if (reg->fallback)
54 {
55 LOG (llevDebug, "region called %s requested, but not found, fallback used.\n", region_name); 53 LOG (llevError, "region called %s requested, but not found, using fallback.\n", name);
56 return reg;
57 }
58 }
59 LOG (llevInfo, "Got no region or fallback for region %s.\n", region_name);
60 return NULL;
61}
62 54
63/* This might need optimising at some point. */ 55 return default_region ();
64region *
65get_region_by_map (maptile *m)
66{
67 return get_region_by_name (get_name_of_region_for_map (m));
68}
69
70/*
71 * Since we won't assume all maps have a region set properly, we need an
72 * explicit check that it is, this is much nicer here than scattered throughout
73 * the map code.
74 */
75
76const char *
77get_name_of_region_for_map (const maptile *m)
78{
79 region *reg;
80
81 if (m->region != NULL)
82 return m->region->name;
83 for (reg = first_region; reg != NULL; reg = reg->next)
84 {
85 if (reg->fallback)
86 return reg->name;
87 }
88 LOG (llevInfo, "map %s had no region and I couldn't find a fallback to use.\n", m->name);
89 return "unknown";
90} 56}
91 57
92/* 58/*
93 * Tries to find a region that 'name' corresponds to. 59 * Tries to find a region that 'name' corresponds to.
94 * It looks, in order, for: 60 * It looks, in order, for:
… …
100 * (there should be only one of these - the top level one) 66 * (there should be only one of these - the top level one)
101 * If we got a NULL, then just return the top level region 67 * If we got a NULL, then just return the top level region
102 * 68 *
103 */ 69 */
104region * 70region *
105get_region_from_string (const char *name) 71region::find_fuzzy (const char *name)
106{ 72{
107 region *reg; 73 region *reg;
108 char *substr; 74 char *substr;
109 char *p; 75 char *p;
110 76
111 if (name == NULL) 77 if (name == NULL)
112 { 78 {
113 for (reg = first_region; reg->parent != NULL; reg = reg->parent); 79 for (reg = first_region; reg->parent; reg = reg->parent)
80 ;
81
114 return reg; 82 return reg;
115 } 83 }
84
116 p = strchr (name, '\n'); 85 p = strchr (name, '\n');
117 if (p) 86 if (p)
118 *p = '\0'; 87 *p = '\0';
88
119 for (reg = first_region; reg != NULL; reg = reg->next) 89 for (reg = first_region; reg; reg = reg->next)
120 if (!strcasecmp (reg->name, name)) 90 if (!strcasecmp (reg->name, name))
121 return reg; 91 return reg;
122 92
123 for (reg = first_region; reg != NULL; reg = reg->next) 93 for (reg = first_region; reg; reg = reg->next)
124 if (reg->longname != NULL) 94 if (reg->longname)
95 if (!strcasecmp (reg->longname, name))
96 return reg;
97
98 substr = NULL;
99 for (reg = first_region; reg; reg = reg->next)
100 if (reg->longname)
125 { 101 {
126 if (!strcasecmp (reg->longname, name)) 102 substr = strstr (reg->longname, name);
103 if (substr)
127 return reg; 104 return reg;
128 } 105 }
129 106
130 substr = NULL;
131 for (reg = first_region; reg != NULL; reg = reg->next) 107 for (reg = first_region; reg; reg = reg->next)
132 if (reg->longname != NULL) 108 if (reg->longname)
133 {
134 substr = strstr (reg->longname, name);
135 if (substr != NULL)
136 return reg;
137 }
138 for (reg = first_region; reg != NULL; reg = reg->next)
139 if (reg->longname != NULL)
140 { 109 {
141 /* 110 /*
142 * This is not a bug, we want the region that is most identifiably a discrete 111 * This is not a bug, we want the region that is most identifiably a discrete
143 * area in the game, eg if we have 'scor', we want to return 'scorn' and not 112 * area in the game, eg if we have 'scor', we want to return 'scorn' and not
144 * 'scornarena', regardless of their order on the list so we only look at those 113 * 'scornarena', regardless of their order on the list so we only look at those
145 * regions with a longname set. 114 * regions with a longname set.
146 */ 115 */
147 substr = strstr (reg->name, name); 116 substr = strstr (reg->name, name);
148 if (substr != NULL) 117 if (substr)
149 return reg; 118 return reg;
150 } 119 }
120
151 for (reg = first_region; reg != NULL; reg = reg->next) 121 for (reg = first_region; reg; reg = reg->next)
152 { 122 {
153 substr = strstr (reg->name, name); 123 substr = strstr (reg->name, name);
154 if (substr != NULL) 124 if (substr)
155 return reg; 125 return reg;
156 } 126 }
127
157 /* if we are still here, we are going to have to give up, and give the top level region */ 128 /* if we are still here, we are going to have to give up, and give the top level region */
158 for (reg = first_region; reg->parent != NULL; reg = reg->parent); 129 for (reg = first_region; reg->parent; reg = reg->parent)
130 ;
131
159 return reg; 132 return reg;
160} 133}
161 134
162/* 135/*
163 * returns 1 if the player is in the region reg, or a child region thereof 136 * returns 1 if the player is in the region reg, or a child region thereof
164 * otherwise returns 0 137 * otherwise returns 0
165 * if passed a NULL region returns -1 138 * if passed a NULL region returns -1
166 */ 139 */
167 140
168int 141static int
169region_is_child_of_region (const region * child, const region * r) 142region_is_child_of_region (const region * child, const region * r)
170{ 143{
171 144
172 if (r == NULL) 145 if (r == NULL)
173 return -1; 146 return -1;
147
174 if (child == NULL) 148 if (child == NULL)
175 return 0; 149 return 0;
150
176 if (!strcmp (child->name, r->name)) 151 if (!strcmp (child->name, r->name))
177 return 1; 152 return 1;
153
178 else if (child->parent != NULL) 154 else if (child->parent != NULL)
179 return region_is_child_of_region (child->parent, r); 155 return region_is_child_of_region (child->parent, r);
180 else 156 else
181 return 0; 157 return 0;
182} 158}
183 159
184/*
185 * the longname of a region is not a required field, any given region
186 * may want to not set it and use the parent's one instead. so, we:
187 * 1. check if a longname is set and if so return it.
188 * 2. check if there is a parent and try and call the function against that
189 * 3. return a obviously wrong string if we can't get a longname, this should
190 * never happen. We also log a debug message.
191 */
192const char *
193get_region_longname (const region * r)
194{
195
196 if (r->longname != NULL)
197 return r->longname;
198 else if (r->parent != NULL)
199 return get_region_longname (r->parent);
200 else
201 {
202 LOG (llevDebug, "NOTICE region %s has no parent and no longname.\n", r->name);
203 return "no name can be found for the current region";
204 }
205}
206
207const char *
208get_region_msg (const region * r)
209{
210 if (r->msg != NULL)
211 return r->msg;
212 else if (r->parent != NULL)
213 return get_region_msg (r->parent);
214 else
215 {
216 LOG (llevDebug, "NOTICE region %s has no parent and no msg.\n", r->name);
217 return "no description can be found for the current region";
218 }
219}
220
221/** Returns an object which is an exit through which the player represented by op should be 160/** Returns an object which is an exit through which the player represented by op should be
222 * sent in order to be imprisoned. If there is no suitable place to which an exit can be 161 * sent in order to be imprisoned. If there is no suitable place to which an exit can be
223 * constructed, then NULL will be returned. The caller is responsible for freeing the object 162 * constructed, then NULL will be returned. The caller is responsible for freeing the object
224 * created by this function. 163 * created by this function.
225 */ 164 */
… …
232 if (op->type != PLAYER) 171 if (op->type != PLAYER)
233 { 172 {
234 LOG (llevError, "region.c: get_jail_exit called against non-player object.\n"); 173 LOG (llevError, "region.c: get_jail_exit called against non-player object.\n");
235 return NULL; 174 return NULL;
236 } 175 }
237 reg = get_region_by_map (op->map); 176
177 reg = op->region ();
238 while (reg != NULL) 178 while (reg)
239 { 179 {
240 if (reg->jailmap) 180 if (reg->jailmap)
241 { 181 {
242 exit = get_object (); 182 exit = object::create ();
243 EXIT_PATH (exit) = reg->jailmap; 183 EXIT_PATH (exit) = reg->jailmap;
244 /* damned exits reset savebed and remove teleports, so the prisoner can't escape */ 184 /* damned exits reset savebed and remove teleports, so the prisoner can't escape */
245 SET_FLAG (exit, FLAG_DAMNED); 185 SET_FLAG (exit, FLAG_DAMNED);
246 EXIT_X (exit) = reg->jailx; 186 EXIT_X (exit) = reg->jailx;
247 EXIT_Y (exit) = reg->jaily; 187 EXIT_Y (exit) = reg->jaily;
248 return exit; 188 return exit;
249 } 189 }
250 else 190 else
251 reg = reg->parent; 191 reg = reg->parent;
252 } 192 }
193
253 LOG (llevDebug, "No suitable jailmap for region %s was found.\n", reg->name); 194 LOG (llevDebug, "No suitable jailmap for region %s was found.\n", &reg->name);
254 return NULL; 195 return NULL;
196}
197
198static void
199assign_region_parents (void)
200{
201 region *reg;
202 uint32 parent_count = 0;
203 uint32 region_count = 0;
204
205 for (reg = first_region; reg && reg->next; reg = reg->next)
206 {
207 if (reg->parent_name)
208 {
209 reg->parent = region::find (reg->parent_name);
210 parent_count++;
211 }
212
213 region_count++;
214 }
215
216 LOG (llevDebug, "Assigned %u regions with %u parents.\n", region_count, parent_count);
255} 217}
256 218
257/* 219/*
258 * First initialises the archtype hash-table (init_archetable()). 220 * First initialises the archtype hash-table (init_archetable()).
259 * Reads and parses the archetype file (with the first and second-pass 221 * Reads and parses the archetype file (with the first and second-pass
… …
268 int comp; 230 int comp;
269 231
270 if (first_region != NULL) /* Only do this once */ 232 if (first_region != NULL) /* Only do this once */
271 return; 233 return;
272 234
235 // make sure one region is always available
236 first_region = new region;
237 first_region->name = "<builtin>";
238 first_region->longname = strdup ("Built-in Region");
239
273 sprintf (filename, "%s/%s/%s", settings.datadir, settings.mapdir, settings.regions); 240 sprintf (filename, "%s/%s/%s", settings.datadir, settings.mapdir, settings.regions);
274 LOG (llevDebug, "Reading regions from %s...\n", filename); 241 LOG (llevDebug, "Reading regions from %s...\n", filename);
275 if ((fp = open_and_uncompress (filename, 0, &comp)) == NULL) 242 if ((fp = open_and_uncompress (filename, 0, &comp)) == NULL)
276 { 243 {
277 LOG (llevError, " Can't open regions file %s in init_regions.\n", filename); 244 LOG (llevError, " Can't open regions file %s in init_regions.\n", filename);
278 return; 245 return;
279 } 246 }
247
280 parse_regions (fp); 248 parse_regions (fp);
281 assign_region_parents (); 249 assign_region_parents ();
282 LOG (llevDebug, " done\n"); 250 LOG (llevDebug, " done\n");
283 251
284 close_and_delete (fp, comp); 252 close_and_delete (fp, comp);
285}
286
287/*
288 * Allocates and zeros a region struct, this isn't free()'d anywhere, so might
289 * be a memory leak, but it shouldn't matter too much since it isn't called that
290 * often....
291 */
292
293region *
294get_region_struct (void)
295{
296
297 region *reg;
298
299 reg = (region *) CALLOC (1, sizeof (region));
300 if (reg == NULL)
301 fatal (OUT_OF_MEMORY);
302
303 memset (reg, '\0', sizeof (region));
304
305 return reg;
306} 253}
307 254
308/* 255/*
309 * Reads/parses the region file, and copies into a linked list 256 * Reads/parses the region file, and copies into a linked list
310 * of region structs. 257 * of region structs.
… …
356 * through. 303 * through.
357 */ 304 */
358 if (!strcmp (key, "region")) 305 if (!strcmp (key, "region"))
359 { 306 {
360 *end = 0; 307 *end = 0;
361 newreg = get_region_struct (); 308 newreg = new region;
362 newreg->name = strdup_local (value); 309 newreg->name = value;
363 } 310 }
364 else if (!strcmp (key, "parent")) 311 else if (!strcmp (key, "parent"))
365 { 312 {
366 /* 313 /*
367 * Note that this is in the initialisation code, so we don't actually 314 * Note that this is in the initialisation code, so we don't actually
368 * assign the pointer to the parent yet, because it might not have been 315 * assign the pointer to the parent yet, because it might not have been
369 * parsed. 316 * parsed.
370 */ 317 */
371 *end = 0; 318 *end = 0;
372 newreg->parent_name = strdup_local (value); 319 newreg->parent_name = value;
373 } 320 }
374 else if (!strcmp (key, "longname")) 321 else if (!strcmp (key, "longname"))
375 { 322 {
376 *end = 0; 323 *end = 0;
377 newreg->longname = strdup_local (value); 324 newreg->longname = strdup (value);
378 } 325 }
379 else if (!strcmp (key, "jail")) 326 else if (!strcmp (key, "jail"))
380 { 327 {
381 /* jail entries are of the form: /path/to/map x y */ 328 /* jail entries are of the form: /path/to/map x y */
382 char path[MAX_BUF]; 329 char path[MAX_BUF];
… …
385 if (sscanf (value, "%[^ ] %d %d\n", path, &x, &y) != 3) 332 if (sscanf (value, "%[^ ] %d %d\n", path, &x, &y) != 3)
386 { 333 {
387 LOG (llevError, "region.c: malformated regions entry: jail %s\n", value); 334 LOG (llevError, "region.c: malformated regions entry: jail %s\n", value);
388 continue; 335 continue;
389 } 336 }
390 newreg->jailmap = strdup_local (path); 337 newreg->jailmap = strdup (path);
391 newreg->jailx = x; 338 newreg->jailx = x;
392 newreg->jaily = y; 339 newreg->jaily = y;
393 } 340 }
394 else if (!strcmp (key, "msg")) 341 else if (!strcmp (key, "msg"))
395 { 342 {
… …
407 * There may be regions with empty messages (eg, msg/endmsg 354 * There may be regions with empty messages (eg, msg/endmsg
408 * with nothing between). When maps are loaded, this is done 355 * with nothing between). When maps are loaded, this is done
409 * so better do it here too... 356 * so better do it here too...
410 */ 357 */
411 if (msgpos != 0) 358 if (msgpos != 0)
412 newreg->msg = strdup_local (msgbuf); 359 newreg->msg = strdup (msgbuf);
413 360
414 /* we have to reset msgpos, or the next region will store both msg blocks. */ 361 /* we have to reset msgpos, or the next region will store both msg blocks. */
415 msgpos = 0; 362 msgpos = 0;
416 } 363 }
417 else if (!strcmp (key, "fallback")) 364 else if (!strcmp (key, "fallback"))
… …
443 } 390 }
444 if (!key || strcmp (key, "nomore")) 391 if (!key || strcmp (key, "nomore"))
445 LOG (llevError, "Got premature eof on regions file!\n"); 392 LOG (llevError, "Got premature eof on regions file!\n");
446} 393}
447 394
448void
449assign_region_parents (void)
450{
451 region *reg;
452 uint32 parent_count = 0;
453 uint32 region_count = 0;
454
455 for (reg = first_region; reg != NULL && reg->next != NULL; reg = reg->next)
456 {
457 if (reg->parent_name != NULL)
458 {
459 reg->parent = get_region_by_name (reg->parent_name);
460 parent_count++;
461 }
462 region_count++;
463 }
464 LOG (llevDebug, "Assigned %u regions with %u parents.", region_count, parent_count);
465}

Diff Legend

– Removed lines
+ Added lines
< Changed lines
> Changed lines