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 1.16 by pippijn, Mon Jan 15 21:06:18 2007 UTC vs.
Revision 1.22 by root, Thu Feb 1 19:15:56 2007 UTC

… …
20 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 20 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21 * 21 *
22 * 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>
23 */ 23 */
24 24
25
26#include <global.h> 25#include <global.h>
27#include <unistd.h> 26#include <unistd.h>
27
28#include "loader.h"
29
30regionvec regions;
31
32region *
33region::default_region ()
34{
35 for_all_regions (rgn)
36 if (rgn->fallback)
37 return rgn;
38
39 return regions [0];
40}
28 41
29/* 42/*
30 * Pass a char array, returns a pointer to the region of the same name. 43 * Pass a char array, returns a pointer to the region of the same name.
31 * if it can't find a region of the same name it returns the first region 44 * if it can't find a region of the same name it returns the first region
32 * with the 'fallback' property set. 45 * with the 'fallback' property set.
33 * if it can't find a matching name /or/ a fallback region it logs an info message 46 * if it can't find a matching name /or/ a fallback region it logs an info message
34 * message and returns NULL 47 * message and returns NULL
35 * used by the map parsing code. 48 * used by the map parsing code.
36 */ 49 */
37region * 50region *
38get_region_by_name (const char *region_name) 51region::find (const char *name)
39{ 52{
40 region *reg; 53 for_all_regions (rgn)
41 char *p = strchr (region_name, '\n');
42
43 if (p)
44 *p = '\0';
45 for (reg = first_region; reg != NULL; reg = reg->next)
46 if (!strcmp (reg->name, region_name)) 54 if (!strcmp (rgn->name, name))
47 return reg; 55 return rgn;
48 56
49 for (reg = first_region; reg != NULL; reg = reg->next)
50 {
51 if (reg->fallback)
52 {
53 LOG (llevDebug, "region called %s requested, but not found, fallback used.\n", region_name); 57 LOG (llevError, "region called %s requested, but not found, using fallback.\n", name);
54 return reg;
55 }
56 }
57 LOG (llevInfo, "Got no region or fallback for region %s.\n", region_name);
58 return NULL;
59}
60 58
61/* This might need optimising at some point. */ 59 return default_region ();
62region *
63get_region_by_map (maptile *m)
64{
65 return get_region_by_name (get_name_of_region_for_map (m));
66}
67
68/*
69 * Since we won't assume all maps have a region set properly, we need an
70 * explicit check that it is, this is much nicer here than scattered throughout
71 * the map code.
72 */
73
74const char *
75get_name_of_region_for_map (const maptile *m)
76{
77 region *reg;
78
79 if (m->region)
80 return m->region->name;
81
82 for (reg = first_region; reg != NULL; reg = reg->next)
83 {
84 if (reg->fallback)
85 return reg->name;
86 }
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} 60}
91 61
92/* 62/*
93 * Tries to find a region that 'name' corresponds to. 63 * Tries to find a region that 'name' corresponds to.
94 * It looks, in order, for: 64 * It looks, in order, for:
… …
100 * (there should be only one of these - the top level one) 70 * (there should be only one of these - the top level one)
101 * If we got a NULL, then just return the top level region 71 * If we got a NULL, then just return the top level region
102 * 72 *
103 */ 73 */
104region * 74region *
105get_region_from_string (const char *name) 75region::find_fuzzy (const char *name)
106{ 76{
107 region *reg; 77 if (!name)
108 char *substr; 78 return default_region ();
109 char *p;
110 79
111 if (name == NULL)
112 {
113 for (reg = first_region; reg->parent != NULL; reg = reg->parent);
114 return reg;
115 }
116 p = strchr (name, '\n'); 80 char *p = strchr (name, '\n');
117 if (p) 81 if (p)
118 *p = '\0'; 82 *p = '\0';
119 for (reg = first_region; reg != NULL; reg = reg->next) 83
84 for_all_regions (rgn)
120 if (!strcasecmp (reg->name, name)) 85 if (!strcasecmp (rgn->name, name))
121 return reg; 86 return rgn;
122 87
123 for (reg = first_region; reg != NULL; reg = reg->next) 88 for_all_regions (rgn)
124 if (reg->longname != NULL) 89 if (rgn->longname)
90 if (!strcasecmp (rgn->longname, name))
91 return rgn;
92
93 for_all_regions (rgn)
94 if (rgn->longname)
125 { 95 {
126 if (!strcasecmp (reg->longname, name)) 96 if (strstr (rgn->longname, name))
127 return reg; 97 return rgn;
128 } 98 }
129 99
130 substr = NULL; 100 for_all_regions (rgn)
131 for (reg = first_region; reg != NULL; reg = reg->next)
132 if (reg->longname != NULL) 101 if (rgn->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 { 102 {
141 /* 103 /*
142 * This is not a bug, we want the region that is most identifiably a discrete 104 * 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 105 * 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 106 * 'scornarena', regardless of their order on the list so we only look at those
145 * regions with a longname set. 107 * regions with a longname set.
146 */ 108 */
147 substr = strstr (reg->name, name); 109 if (strstr (rgn->name, name))
148 if (substr != NULL)
149 return reg; 110 return rgn;
150 } 111 }
151 for (reg = first_region; reg != NULL; reg = reg->next) 112
113 for_all_regions (rgn)
152 { 114 {
153 substr = strstr (reg->name, name); 115 if (strstr (rgn->name, name))
154 if (substr != NULL)
155 return reg; 116 return rgn;
156 } 117 }
157 /* if we are still here, we are going to have to give up, and give the top level region */ 118
158 for (reg = first_region; reg->parent != NULL; reg = reg->parent); 119 return default_region ();
159 return reg;
160} 120}
161 121
162/* 122/*
163 * returns 1 if the player is in the region reg, or a child region thereof 123 * returns 1 if the player is in the region reg, or a child region thereof
164 * otherwise returns 0 124 * otherwise returns 0
165 * if passed a NULL region returns -1 125 * if passed a NULL region returns -1
166 */ 126 */
167 127
168int 128static int
169region_is_child_of_region (const region * child, const region * r) 129region_is_child_of_region (const region * child, const region * r)
170{ 130{
171 131
172 if (r == NULL) 132 if (r == NULL)
173 return -1; 133 return -1;
134
174 if (child == NULL) 135 if (child == NULL)
175 return 0; 136 return 0;
137
176 if (!strcmp (child->name, r->name)) 138 if (!strcmp (child->name, r->name))
177 return 1; 139 return 1;
140
178 else if (child->parent != NULL) 141 else if (child->parent != NULL)
179 return region_is_child_of_region (child->parent, r); 142 return region_is_child_of_region (child->parent, r);
180 else 143 else
181 return 0; 144 return 0;
182} 145}
183 146
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 147/** 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 148 * 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 149 * constructed, then NULL will be returned. The caller is responsible for freeing the object
224 * created by this function. 150 * created by this function.
225 */ 151 */
… …
232 if (op->type != PLAYER) 158 if (op->type != PLAYER)
233 { 159 {
234 LOG (llevError, "region.c: get_jail_exit called against non-player object.\n"); 160 LOG (llevError, "region.c: get_jail_exit called against non-player object.\n");
235 return NULL; 161 return NULL;
236 } 162 }
237 reg = get_region_by_map (op->map); 163
164 reg = op->region ();
238 while (reg != NULL) 165 while (reg)
239 { 166 {
240 if (reg->jailmap) 167 if (reg->jailmap)
241 { 168 {
242 exit = object::create (); 169 exit = object::create ();
243 EXIT_PATH (exit) = reg->jailmap; 170 EXIT_PATH (exit) = reg->jailmap;
… …
248 return exit; 175 return exit;
249 } 176 }
250 else 177 else
251 reg = reg->parent; 178 reg = reg->parent;
252 } 179 }
180
253 LOG (llevDebug, "No suitable jailmap for region %s was found.\n", reg->name); 181 LOG (llevError, "No suitable jailmap for region %s was found.\n", &reg->name);
182
254 return NULL; 183 return 0;
184}
185
186region *loader_region::get_region (const char *name)
187{
188 region *rgn = new region;
189 rgn->name = name;
190 return rgn;
191}
192
193void loader_region::put_region (region *rgn)
194{
195 for_all_regions (old)
196 if (old->name == rgn->name)
197 {
198 // replace, copy new values (ugly)
199 rgn->index = old->index;
200 *old = *rgn;
201 delete rgn;
202
203 return;
204 }
205
206 // just append
207 regions.push_back (rgn);
208}
209
210bool
211loader_base::parse_region (object_thawer &thawer, region *rgn)
212{
213 for (;;)
214 {
215 keyword kw = thawer.get_kv ();
216
217 switch (kw)
218 {
219 case KW_parent:
220 rgn->parent = region::find (thawer.get_str ());
221 break;
222
223 case KW_longname:
224 thawer.get (rgn->longname);
225 break;
226
227 case KW_jail_map:
228 thawer.get (rgn->jailmap);
229 break;
230
231 case KW_jail_x:
232 thawer.get (rgn->jailx);
233 break;
234
235 case KW_jail_y:
236 thawer.get (rgn->jaily);
237 break;
238
239 case KW_msg:
240 thawer.get_ml (KW_endmsg, rgn->msg);
241 break;
242
243 case KW_fallback:
244 thawer.get (rgn->fallback);
245 break;
246
247 case KW_end:
248 return true;
249
250 default:
251 if (!thawer.parse_error (kw, "region", rgn->name))
252 return false;
253 break;
254 }
255 }
255} 256}
256 257
257/* 258/*
258 * First initialises the archtype hash-table (init_archetable()). 259 * First initialises the archtype hash-table (init_archetable()).
259 * Reads and parses the archetype file (with the first and second-pass 260 * Reads and parses the archetype file (with the first and second-pass
… …
261 * Then initialises treasures by calling load_treasures(). 262 * Then initialises treasures by calling load_treasures().
262 */ 263 */
263void 264void
264init_regions (void) 265init_regions (void)
265{ 266{
266 FILE *fp;
267 char filename[MAX_BUF]; 267 char filename[MAX_BUF];
268 int comp; 268 int comp;
269 269
270 if (first_region != NULL) /* Only do this once */ 270 if (!regions.size ())
271 return; 271 {
272 // make sure one region is always available
273 region *rgn = new region;
274 rgn->name = "<builtin>";
275 rgn->longname = "Built-in Region";
276 regions.push_back (rgn);
277 }
272 278
273 sprintf (filename, "%s/%s/%s", settings.datadir, settings.mapdir, settings.regions); 279 sprintf (filename, "%s/%s/%s", settings.datadir, settings.mapdir, settings.regions);
274 LOG (llevDebug, "Reading regions from %s...\n", filename); 280 LOG (llevDebug, "Reading regions from %s...\n", filename);
275 if ((fp = open_and_uncompress (filename, 0, &comp)) == NULL) 281
282 loader_region loader;
283
284 if (!loader.load (filename))
276 { 285 {
277 LOG (llevError, " Can't open regions file %s in init_regions.\n", filename); 286 LOG (llevError, "Can't open regions file %s in init_regions.\n", filename);
278 return; 287 return;
279 } 288 }
280 parse_regions (fp); 289
281 assign_region_parents ();
282 LOG (llevDebug, " done\n"); 290 LOG (llevDebug, " done\n");
283
284 close_and_delete (fp, comp);
285} 291}
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 return new region;
297}
298
299/*
300 * Reads/parses the region file, and copies into a linked list
301 * of region structs.
302 */
303void
304parse_regions (FILE * fp)
305{
306 region *newreg;
307 region *reg;
308
309 char buf[HUGE_BUF], msgbuf[HUGE_BUF], *key = NULL, *value, *end;
310 int msgpos = 0;
311
312 newreg = NULL;
313 while (fgets (buf, HUGE_BUF - 1, fp) != NULL)
314 {
315 buf[HUGE_BUF - 1] = 0;
316 key = buf;
317 while (isspace (*key))
318 key++;
319 if (*key == 0)
320 continue; /* empty line */
321 value = strchr (key, ' ');
322 if (!value)
323 {
324 end = strchr (key, '\n');
325 *end = 0;
326 }
327 else
328 {
329 *value = 0;
330 value++;
331 while (isspace (*value))
332 value++;
333 end = strchr (value, '\n');
334 }
335
336 /*
337 * This is a bizzare mutated form of the map and archetype parser
338 * rolled into one. Key is the field name, value is what it should
339 * be set to.
340 * We've already done the work to null terminate key,
341 * and strip off any leading spaces for both of these.
342 * We have not touched the newline at the end of the line -
343 * these might be needed for some values. the end pointer
344 * points to the first of the newlines.
345 * value could be NULL! It would be easy enough to just point
346 * this to "" to prevent cores, but that would let more errors slide
347 * through.
348 */
349 if (!strcmp (key, "region"))
350 {
351 *end = 0;
352 newreg = get_region_struct ();
353 newreg->name = strdup (value);
354 }
355 else if (!strcmp (key, "parent"))
356 {
357 /*
358 * Note that this is in the initialisation code, so we don't actually
359 * assign the pointer to the parent yet, because it might not have been
360 * parsed.
361 */
362 *end = 0;
363 newreg->parent_name = strdup (value);
364 }
365 else if (!strcmp (key, "longname"))
366 {
367 *end = 0;
368 newreg->longname = strdup (value);
369 }
370 else if (!strcmp (key, "jail"))
371 {
372 /* jail entries are of the form: /path/to/map x y */
373 char path[MAX_BUF];
374 int x, y;
375
376 if (sscanf (value, "%[^ ] %d %d\n", path, &x, &y) != 3)
377 {
378 LOG (llevError, "region.c: malformated regions entry: jail %s\n", value);
379 continue;
380 }
381 newreg->jailmap = strdup (path);
382 newreg->jailx = x;
383 newreg->jaily = y;
384 }
385 else if (!strcmp (key, "msg"))
386 {
387 while (fgets (buf, HUGE_BUF - 1, fp) != NULL)
388 {
389 if (!strcmp (buf, "endmsg\n"))
390 break;
391 else
392 {
393 strcpy (msgbuf + msgpos, buf);
394 msgpos += strlen (buf);
395 }
396 }
397 /*
398 * There may be regions with empty messages (eg, msg/endmsg
399 * with nothing between). When maps are loaded, this is done
400 * so better do it here too...
401 */
402 if (msgpos != 0)
403 newreg->msg = strdup (msgbuf);
404
405 /* we have to reset msgpos, or the next region will store both msg blocks. */
406 msgpos = 0;
407 }
408 else if (!strcmp (key, "fallback"))
409 {
410 *end = 0;
411 newreg->fallback = atoi (value);
412 }
413 else if (!strcmp (key, "end"))
414 {
415 /* Place this new region last on the list, if the list is empty put it first */
416 for (reg = first_region; reg != NULL && reg->next != NULL; reg = reg->next);
417
418 if (reg == NULL)
419 first_region = newreg;
420 else
421 reg->next = newreg;
422 newreg = NULL;
423 }
424 else if (!strcmp (key, "nomore"))
425 {
426 /* we have reached the end of the region specs.... */
427 break;
428 }
429 else
430 {
431 /* we should never get here, if we have, then something is wrong */
432 LOG (llevError, "Got unknown value in region file: %s %s\n", key, value);
433 }
434 }
435 if (!key || strcmp (key, "nomore"))
436 LOG (llevError, "Got premature eof on regions file!\n");
437}
438
439void
440assign_region_parents (void)
441{
442 region *reg;
443 uint32 parent_count = 0;
444 uint32 region_count = 0;
445
446 for (reg = first_region; reg != NULL && reg->next != NULL; reg = reg->next)
447 {
448 if (reg->parent_name != NULL)
449 {
450 reg->parent = get_region_by_name (reg->parent_name);
451 parent_count++;
452 }
453 region_count++;
454 }
455 LOG (llevDebug, "Assigned %u regions with %u parents.\n", region_count, parent_count);
456}

Diff Legend

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