| 1 |
/* |
| 2 |
* CrossFire, A Multiplayer game for X-windows |
| 3 |
* |
| 4 |
* Copyright (C) 2005, 2006, 2007 Marc Lehmann & Crossfire+ Development Team |
| 5 |
* Copyright (C) 2002 Mark Wedel & Crossfire Development Team |
| 6 |
* Copyright (C) 1992 Frank Tore Johansen |
| 7 |
* |
| 8 |
* This program is free software; you can redistribute it and/or modify |
| 9 |
* it under the terms of the GNU General Public License as published by |
| 10 |
* the Free Software Foundation; either version 2 of the License, or |
| 11 |
* (at your option) any later version. |
| 12 |
* |
| 13 |
* This program is distributed in the hope that it will be useful, |
| 14 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 |
* GNU General Public License for more details. |
| 17 |
* |
| 18 |
* You should have received a copy of the GNU General Public License |
| 19 |
* along with this program; if not, write to the Free Software |
| 20 |
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| 21 |
* |
| 22 |
* The maintainer of this code can be reached at <crossfire@schmorp.de> |
| 23 |
*/ |
| 24 |
|
| 25 |
|
| 26 |
#include <global.h> |
| 27 |
#include <stdio.h> |
| 28 |
|
| 29 |
New_Face *new_faces; |
| 30 |
|
| 31 |
/* bmappair and xbm are used when looking for the image id numbers |
| 32 |
* of a face by name. xbm is sorted alphabetically so that bsearch |
| 33 |
* can be used to quickly find the entry for a name. the number is |
| 34 |
* then an index into the new_faces array. |
| 35 |
* This data is redundant with new_face information - the difference |
| 36 |
* is that this data gets sorted, and that doesn't necessarily happen |
| 37 |
* with the new_face data - when accessing new_face[some number], |
| 38 |
* that some number corresponds to the face at that number - for |
| 39 |
* xbm, it may not. At current time, these do in fact match because |
| 40 |
* the bmaps file is created in a sorted order. |
| 41 |
*/ |
| 42 |
|
| 43 |
struct bmappair |
| 44 |
{ |
| 45 |
char *name; |
| 46 |
unsigned int number; |
| 47 |
}; |
| 48 |
|
| 49 |
void free (bmappair *); // guard to catch free when delete should be used |
| 50 |
|
| 51 |
static struct bmappair *xbm = NULL; |
| 52 |
|
| 53 |
/* Following can just as easily be pointers, but |
| 54 |
* it is easier to keep them like this. |
| 55 |
*/ |
| 56 |
New_Face *blank_face, *dark_faces[3], *empty_face, *smooth_face; |
| 57 |
|
| 58 |
|
| 59 |
/* nroffiles is the actual number of bitmaps defined. |
| 60 |
* nrofpixmaps is the number of bitmaps loaded. With |
| 61 |
* the automatic generation of the bmaps file, this is now equal |
| 62 |
* to nroffiles. |
| 63 |
* |
| 64 |
* The xbm array (which contains name and number information, and |
| 65 |
* is then sorted) contains nroffiles entries. the xbm_names |
| 66 |
* array (which is used for converting the numeric face to |
| 67 |
* a name) contains nrofpixmaps entries. |
| 68 |
*/ |
| 69 |
static int nroffiles = 0; |
| 70 |
int nrofpixmaps = 0; |
| 71 |
|
| 72 |
/** |
| 73 |
* id is the face to smooth, smooth is the 16x2 face used to smooth id. |
| 74 |
*/ |
| 75 |
struct smoothing:zero_initialised |
| 76 |
{ |
| 77 |
uint16 id; |
| 78 |
uint16 smooth; |
| 79 |
}; |
| 80 |
|
| 81 |
void free (smoothing *); // guard to catch free when delete should be used |
| 82 |
|
| 83 |
/** |
| 84 |
* Contains all defined smoothing entries. smooth is an array of nrofsmooth |
| 85 |
* entries. It is sorted by smooth[].id. |
| 86 |
*/ |
| 87 |
static struct smoothing *smooth = NULL; |
| 88 |
int nrofsmooth = 0; |
| 89 |
|
| 90 |
/* the only thing this table is used for now is to |
| 91 |
* translate the colorname in the magicmap field of the |
| 92 |
* face into a numeric index that is then sent to the |
| 93 |
* client for magic map commands. The order of this table |
| 94 |
* must match that of the NDI colors in include/newclient.h. |
| 95 |
*/ |
| 96 |
static const char *const colorname[] = { |
| 97 |
"black", /* 0 */ |
| 98 |
"white", /* 1 */ |
| 99 |
"blue", /* 2 */ |
| 100 |
"red", /* 3 */ |
| 101 |
"orange", /* 4 */ |
| 102 |
"light_blue", /* 5 */ |
| 103 |
"dark_orange", /* 6 */ |
| 104 |
"green", /* 7 */ |
| 105 |
"light_green", /* 8 */ |
| 106 |
"grey", /* 9 */ |
| 107 |
"brown", /* 10 */ |
| 108 |
"yellow", /* 11 */ |
| 109 |
"khaki" /* 12 */ |
| 110 |
}; |
| 111 |
|
| 112 |
static int |
| 113 |
compar (const struct bmappair *a, const struct bmappair *b) |
| 114 |
{ |
| 115 |
return strcmp (a->name, b->name); |
| 116 |
} |
| 117 |
|
| 118 |
static int |
| 119 |
compar_smooth (const struct smoothing *a, const struct smoothing *b) |
| 120 |
{ |
| 121 |
if (a->id < b->id) |
| 122 |
return -1; |
| 123 |
if (b->id < a->id) |
| 124 |
return 1; |
| 125 |
return 0; |
| 126 |
} |
| 127 |
|
| 128 |
/* |
| 129 |
* Returns the matching color in the coloralias if found, |
| 130 |
* 0 otherwise. Note that 0 will actually be black, so there is no |
| 131 |
* way the calling function can tell if an error occurred or not |
| 132 |
*/ |
| 133 |
static uint8 |
| 134 |
find_color (const char *name) |
| 135 |
{ |
| 136 |
uint8 i; |
| 137 |
|
| 138 |
for (i = 0; i < sizeof (colorname) / sizeof (*colorname); i++) |
| 139 |
if (!strcmp (name, colorname[i])) |
| 140 |
return i; |
| 141 |
LOG (llevError, "Unknown color: %s\n", name); |
| 142 |
return 0; |
| 143 |
} |
| 144 |
|
| 145 |
/* This reads the lib/faces file, getting color and visibility information. |
| 146 |
* it is called by ReadBmapNames. |
| 147 |
*/ |
| 148 |
static void |
| 149 |
ReadFaceData (void) |
| 150 |
{ |
| 151 |
char buf[MAX_BUF], *cp; |
| 152 |
New_Face *on_face = NULL; |
| 153 |
FILE *fp; |
| 154 |
|
| 155 |
sprintf (buf, "%s/faces", settings.datadir); |
| 156 |
LOG (llevDebug, "Reading faces from %s...\n", buf); |
| 157 |
if ((fp = fopen (buf, "r")) == NULL) |
| 158 |
{ |
| 159 |
LOG (llevError, "Cannot open faces file %s: %s\n", buf, strerror (errno)); |
| 160 |
exit (-1); |
| 161 |
} |
| 162 |
while (fgets (buf, MAX_BUF, fp) != NULL) |
| 163 |
{ |
| 164 |
if (*buf == '#') |
| 165 |
continue; |
| 166 |
if (!strncmp (buf, "end", 3)) |
| 167 |
{ |
| 168 |
on_face = NULL; |
| 169 |
} |
| 170 |
else if (!strncmp (buf, "face", 4)) |
| 171 |
{ |
| 172 |
int tmp; |
| 173 |
|
| 174 |
cp = buf + 5; |
| 175 |
cp[strlen (cp) - 1] = '\0'; /* remove newline */ |
| 176 |
|
| 177 |
if ((tmp = FindFace (cp, -1)) == -1) |
| 178 |
{ |
| 179 |
LOG (llevError, "Could not find face %s\n", cp); |
| 180 |
continue; |
| 181 |
} |
| 182 |
on_face = &new_faces[tmp]; |
| 183 |
on_face->visibility = 0; |
| 184 |
} |
| 185 |
else if (on_face == NULL) |
| 186 |
{ |
| 187 |
LOG (llevError, "Got line with no face set: %s\n", buf); |
| 188 |
} |
| 189 |
else if (!strncmp (buf, "color_fg", 8)) |
| 190 |
{ |
| 191 |
cp = buf + 9; |
| 192 |
cp[strlen (cp) - 1] = '\0'; |
| 193 |
if (on_face->magicmap == 255) |
| 194 |
on_face->magicmap = find_color (cp); |
| 195 |
} |
| 196 |
else if (!strncmp (buf, "color_bg", 8)) |
| 197 |
{ |
| 198 |
/* ignore it */ |
| 199 |
} |
| 200 |
else if (!strncmp (buf, "visibility", 10)) |
| 201 |
{ |
| 202 |
on_face->visibility = atoi (buf + 11); |
| 203 |
} |
| 204 |
else if (!strncmp (buf, "magicmap", 8)) |
| 205 |
{ |
| 206 |
cp = buf + 9; |
| 207 |
cp[strlen (cp) - 1] = '\0'; |
| 208 |
on_face->magicmap = find_color (cp); |
| 209 |
} |
| 210 |
else if (!strncmp (buf, "is_floor", 8)) |
| 211 |
{ |
| 212 |
int value = atoi (buf + 9); |
| 213 |
|
| 214 |
if (value) |
| 215 |
on_face->magicmap |= FACE_FLOOR; |
| 216 |
} |
| 217 |
else |
| 218 |
LOG (llevDebug, "Got unknown line in faces file: %s\n", buf); |
| 219 |
} |
| 220 |
|
| 221 |
LOG (llevDebug, "done\n"); |
| 222 |
fclose (fp); |
| 223 |
} |
| 224 |
|
| 225 |
/* This reads the bmaps file to get all the bitmap names and |
| 226 |
* stuff. It only needs to be done once, because it is player |
| 227 |
* independent (ie, what display the person is on will not make a |
| 228 |
* difference.) |
| 229 |
*/ |
| 230 |
void |
| 231 |
ReadBmapNames (void) |
| 232 |
{ |
| 233 |
char buf[MAX_BUF], *p, *q; |
| 234 |
FILE *fp; |
| 235 |
int value, nrofbmaps = 0, i; |
| 236 |
size_t l; |
| 237 |
|
| 238 |
bmaps_checksum = 0; |
| 239 |
sprintf (buf, "%s/bmaps", settings.datadir); |
| 240 |
LOG (llevDebug, "Reading bmaps from %s...\n", buf); |
| 241 |
if ((fp = fopen (buf, "r")) == NULL) |
| 242 |
{ |
| 243 |
LOG (llevError, "Cannot open bmaps file %s: %s\n", buf, strerror (errno)); |
| 244 |
exit (-1); |
| 245 |
} |
| 246 |
|
| 247 |
/* First count how many bitmaps we have, so we can allocate correctly */ |
| 248 |
while (fgets (buf, MAX_BUF, fp) != NULL) |
| 249 |
if (buf[0] != '#' && buf[0] != '\n') |
| 250 |
nrofbmaps++; |
| 251 |
rewind (fp); |
| 252 |
|
| 253 |
xbm = new bmappair[nrofbmaps]; |
| 254 |
memset (xbm, 0, sizeof (struct bmappair) * nrofbmaps); |
| 255 |
|
| 256 |
while (nroffiles < nrofbmaps && fgets (buf, MAX_BUF, fp) != NULL) |
| 257 |
{ |
| 258 |
if (*buf == '#') |
| 259 |
continue; |
| 260 |
|
| 261 |
p = (*buf == '\\') ? (buf + 1) : buf; |
| 262 |
if (!(p = strtok (p, " \t")) || !(q = strtok (NULL, " \t\n"))) |
| 263 |
{ |
| 264 |
LOG (llevDebug, "Warning, syntax error: %s\n", buf); |
| 265 |
continue; |
| 266 |
} |
| 267 |
value = atoi (p); |
| 268 |
xbm[nroffiles].name = strdup (q); |
| 269 |
|
| 270 |
/* We need to calculate the checksum of the bmaps file |
| 271 |
* name->number mapping to send to the client. This does not |
| 272 |
* need to match what sum or other utility may come up with - |
| 273 |
* as long as we get the same results on the same real file |
| 274 |
* data, it does the job as it lets the client know if |
| 275 |
* the file has the same data or not. |
| 276 |
*/ |
| 277 |
ROTATE_RIGHT (bmaps_checksum); |
| 278 |
bmaps_checksum += value & 0xff; |
| 279 |
bmaps_checksum &= 0xffffffff; |
| 280 |
|
| 281 |
ROTATE_RIGHT (bmaps_checksum); |
| 282 |
bmaps_checksum += (value >> 8) & 0xff; |
| 283 |
bmaps_checksum &= 0xffffffff; |
| 284 |
for (l = 0; l < strlen (q); l++) |
| 285 |
{ |
| 286 |
ROTATE_RIGHT (bmaps_checksum); |
| 287 |
bmaps_checksum += q[l]; |
| 288 |
bmaps_checksum &= 0xffffffff; |
| 289 |
} |
| 290 |
|
| 291 |
xbm[nroffiles].number = value; |
| 292 |
nroffiles++; |
| 293 |
if (value >= nrofpixmaps) |
| 294 |
nrofpixmaps = value + 1; |
| 295 |
} |
| 296 |
fclose (fp); |
| 297 |
|
| 298 |
LOG (llevDebug, "done (got %d/%d/%d)\n", nrofpixmaps, nrofbmaps, nroffiles); |
| 299 |
|
| 300 |
new_faces = new New_Face[nrofpixmaps]; |
| 301 |
|
| 302 |
for (i = 0; i < nrofpixmaps; i++) |
| 303 |
{ |
| 304 |
new_faces[i].name = ""; |
| 305 |
new_faces[i].number = i; |
| 306 |
new_faces[i].visibility = 0; |
| 307 |
new_faces[i].magicmap = 255; |
| 308 |
} |
| 309 |
for (i = 0; i < nroffiles; i++) |
| 310 |
{ |
| 311 |
new_faces[xbm[i].number].name = xbm[i].name; |
| 312 |
} |
| 313 |
|
| 314 |
// non-pod datatype, likely not allowed |
| 315 |
qsort (xbm, nroffiles, sizeof (struct bmappair), (int (*)(const void *, const void *)) compar); |
| 316 |
|
| 317 |
ReadFaceData (); |
| 318 |
|
| 319 |
for (i = 0; i < nrofpixmaps; i++) |
| 320 |
{ |
| 321 |
if (new_faces[i].magicmap == 255) |
| 322 |
{ |
| 323 |
#if 0 /* Useful for initial debugging, not needed now */ |
| 324 |
LOG (llevDebug, "Face %s still had default magicmap, resetting to black\n", new_faces[i].name); |
| 325 |
#endif |
| 326 |
new_faces[i].magicmap = 0; |
| 327 |
} |
| 328 |
} |
| 329 |
/* Actually forcefully setting the colors here probably should not |
| 330 |
* be done - it could easily create confusion. |
| 331 |
*/ |
| 332 |
blank_face = &new_faces[FindFace (BLANK_FACE_NAME, 0)]; |
| 333 |
blank_face->magicmap = find_color ("khaki") | FACE_FLOOR; |
| 334 |
|
| 335 |
empty_face = &new_faces[FindFace (EMPTY_FACE_NAME, 0)]; |
| 336 |
|
| 337 |
dark_faces[0] = &new_faces[FindFace (DARK_FACE1_NAME, 0)]; |
| 338 |
dark_faces[1] = &new_faces[FindFace (DARK_FACE2_NAME, 0)]; |
| 339 |
dark_faces[2] = &new_faces[FindFace (DARK_FACE3_NAME, 0)]; |
| 340 |
|
| 341 |
smooth_face = &new_faces[FindFace (SMOOTH_FACE_NAME, 0)]; |
| 342 |
} |
| 343 |
|
| 344 |
/* This returns an the face number of face 'name'. Number is constant |
| 345 |
* during an invocation, but not necessarily between versions (this |
| 346 |
* is because the faces are arranged in alphabetical order, so |
| 347 |
* if a face is removed or added, all faces after that will now |
| 348 |
* have a different number. |
| 349 |
* |
| 350 |
* the parameter error determines behaviour. If a face is |
| 351 |
* not found, then error is returned. This can be useful if |
| 352 |
* you want some default face used, or can be set to negative |
| 353 |
* so that it will be known that the face could not be found |
| 354 |
* (needed in client, so that it will know to request that image |
| 355 |
* from the server) |
| 356 |
*/ |
| 357 |
int |
| 358 |
FindFace (const char *name, int error) |
| 359 |
{ |
| 360 |
struct bmappair *bp, tmp; |
| 361 |
char *p; |
| 362 |
|
| 363 |
if (!name) |
| 364 |
return error; |
| 365 |
|
| 366 |
if ((p = strchr (name, '\n'))) |
| 367 |
*p = '\0'; |
| 368 |
|
| 369 |
tmp.name = (char *) name; |
| 370 |
bp = (struct bmappair *) bsearch (&tmp, xbm, nroffiles, sizeof (struct bmappair), (int (*)(const void *, const void *)) compar); |
| 371 |
|
| 372 |
return bp ? bp->number : error; |
| 373 |
} |
| 374 |
|
| 375 |
/* Reads the smooth file to know how to smooth datas. |
| 376 |
* the smooth file if made of 2 elements lines. |
| 377 |
* lines starting with # are comment |
| 378 |
* the first element of line is face to smooth |
| 379 |
* the next element is the 16x2 faces picture |
| 380 |
* used for smoothing |
| 381 |
*/ |
| 382 |
int |
| 383 |
ReadSmooth (void) |
| 384 |
{ |
| 385 |
char buf[MAX_BUF], *p, *q; |
| 386 |
FILE *fp; |
| 387 |
int smoothcount = 0; |
| 388 |
|
| 389 |
bmaps_checksum = 0; |
| 390 |
sprintf (buf, "%s/smooth", settings.datadir); |
| 391 |
LOG (llevDebug, "Reading smooth from %s...\n", buf); |
| 392 |
if ((fp = fopen (buf, "r")) == NULL) |
| 393 |
{ |
| 394 |
LOG (llevError, "Cannot open smooth file %s: %s\n", strerror (errno)); |
| 395 |
exit (-1); |
| 396 |
} |
| 397 |
|
| 398 |
/* First count how many smooth we have, so we can allocate correctly */ |
| 399 |
while (fgets (buf, MAX_BUF, fp) != NULL) |
| 400 |
if (buf[0] != '#' && buf[0] != '\n') |
| 401 |
smoothcount++; |
| 402 |
rewind (fp); |
| 403 |
|
| 404 |
smooth = new smoothing[smoothcount]; |
| 405 |
|
| 406 |
while (nrofsmooth < smoothcount && fgets (buf, MAX_BUF, fp) != NULL) |
| 407 |
{ |
| 408 |
if (*buf == '#') |
| 409 |
continue; |
| 410 |
p = strchr (buf, ' '); |
| 411 |
if (!p) |
| 412 |
continue; |
| 413 |
*p = '\0'; |
| 414 |
q = buf; |
| 415 |
smooth[nrofsmooth].id = FindFace (q, 0); |
| 416 |
q = p + 1; |
| 417 |
smooth[nrofsmooth].smooth = FindFace (q, 0); |
| 418 |
nrofsmooth++; |
| 419 |
} |
| 420 |
fclose (fp); |
| 421 |
|
| 422 |
LOG (llevDebug, "done (got %d smooth entries)\n", nrofsmooth); |
| 423 |
qsort (smooth, nrofsmooth, sizeof (struct smoothing), (int (*)(const void *, const void *)) compar_smooth); |
| 424 |
return nrofsmooth; |
| 425 |
} |
| 426 |
|
| 427 |
/** |
| 428 |
* Find the smooth face for a given face. |
| 429 |
* |
| 430 |
* @param face the face to find the smoothing face for |
| 431 |
* |
| 432 |
* @param smoothed return value: set to smooth face |
| 433 |
* |
| 434 |
* @return 1=smooth face found, 0=no smooth face found |
| 435 |
*/ |
| 436 |
int |
| 437 |
FindSmooth (uint16 face, uint16 * smoothed) |
| 438 |
{ |
| 439 |
struct smoothing *bp, tmp; |
| 440 |
|
| 441 |
tmp.id = face; |
| 442 |
bp = (struct smoothing *) bsearch |
| 443 |
(&tmp, smooth, nrofsmooth, sizeof (struct smoothing), (int (*)(const void *, const void *)) compar_smooth); |
| 444 |
(*smoothed) = 0; |
| 445 |
if (bp) |
| 446 |
(*smoothed) = bp->smooth; |
| 447 |
return bp ? 1 : 0; |
| 448 |
} |
| 449 |
|
| 450 |
/** |
| 451 |
* Deallocates memory allocated by ReadBmapNames() and ReadSmooth(). |
| 452 |
*/ |
| 453 |
void |
| 454 |
free_all_images (void) |
| 455 |
{ |
| 456 |
int i; |
| 457 |
|
| 458 |
for (i = 0; i < nroffiles; i++) |
| 459 |
free (xbm[i].name); |
| 460 |
|
| 461 |
delete[]xbm; |
| 462 |
delete[]new_faces; |
| 463 |
delete[]smooth; |
| 464 |
} |
