2 * The dungeon compiler. Turns adventure.text into a set of C initializers
3 * defining (mostly) invariant state. A couple of slots are messed with
24 // Global variables for use in functions below that can gradually disappear as code is cleaned up
27 static char INLINE[LINESIZE + 1];
30 // Storage for what comes out of the database
36 long PTEXT[NOBJECTS + 1];
37 long RTEXT[RTXSIZ + 1];
38 long CTEXT[CLSMAX + 1];
39 long OBJSND[NOBJECTS + 1];
40 long OBJTXT[NOBJECTS + 1];
41 long STEXT[LOCSIZ + 1];
42 long LTEXT[LOCSIZ + 1];
43 long COND[LOCSIZ + 1];
45 long LOCSND[LOCSIZ + 1];
46 long LINES[LINSIZ + 1];
47 long TTEXT[TRNSIZ + 1];
48 long TRNVAL[TRNSIZ + 1];
49 long TRAVEL[TRVSIZ + 1];
50 long KTAB[TABSIZ + 1];
51 long ATAB[TABSIZ + 1];
52 long PLAC[NOBJECTS + 1];
53 long FIXD[NOBJECTS + 1];
54 long ACTSPK[VRBSIZ + 1];
55 long HINTS[HNTSIZ + 1][HINTLEN];
58 static bool is_set(long var, long position)
60 long mask = 1l << position;
61 bool result = (var & mask) == mask;
65 static long GETTXT(long SKIP, long ONEWRD, long UPPER)
67 /* Take characters from an input line and pack them into 30-bit words.
68 * Skip says to skip leading blanks. ONEWRD says stop if we come to a
69 * blank. UPPER says to map all letters to uppercase. If we reach the
70 * end of the line, the word is filled up with blanks (which encode as 0's).
71 * If we're already at end of line when GETTXT is called, we return -1. */
74 static long SPLITTING = -1;
76 if (LNPOSN != SPLITTING)
82 if ((!SKIP) || INLINE[LNPOSN] != 0)
88 for (int I = 1; I <= TOKLEN; I++) {
90 if (LNPOSN > LNLENG || (ONEWRD && INLINE[LNPOSN] == 0))
92 char current = INLINE[LNPOSN];
95 if (UPPER && current >= 37)
96 current = current - 26;
97 TEXT = TEXT + current;
101 if (SPLITTING != LNPOSN) {
107 TEXT = TEXT + current - 63;
115 static void MAPLIN(FILE *OPENED)
117 /* Read a line of input, from the specified input source,
118 * translate the chars to integers in the range 0-126 and store
119 * them in the common array "INLINE". Integer values are as follows:
120 * 0 = space [ASCII CODE 40 octal, 32 decimal]
121 * 1-2 = !" [ASCII 41-42 octal, 33-34 decimal]
122 * 3-10 = '()*+,-. [ASCII 47-56 octal, 39-46 decimal]
123 * 11-36 = upper-case letters
124 * 37-62 = lower-case letters
125 * 63 = percent (%) [ASCII 45 octal, 37 decimal]
126 * 64-73 = digits, 0 through 9
127 * Remaining characters can be translated any way that is convenient;
128 * The "TYPE" routine below is used to map them back to characters when
129 * necessary. The above mappings are required so that certain special
130 * characters are known to fit in 6 bits and/or can be easily spotted.
131 * Array elements beyond the end of the line should be filled with 0,
132 * and LNLENG should be set to the index of the last character.
134 * If the data file uses a character other than space (e.g., tab) to
135 * separate numbers, that character should also translate to 0.
137 * This procedure may use the map1,map2 arrays to maintain static data for
138 * the mapping. MAP2(1) is set to 0 when the program starts
139 * and is not changed thereafter unless the routines on this page choose
143 if (NULL == fgets(INLINE + 1, sizeof(INLINE) - 1, OPENED)) {
144 printf("Failed fgets()\n");
146 } while (!feof(OPENED) && INLINE[1] == '#');
149 for (size_t i = 1; i < sizeof(INLINE) && INLINE[i] != 0; ++i) {
150 char val = INLINE[i];
151 INLINE[i] = ascii_to_advent[(unsigned)val];
158 static long GETNUM(FILE *source)
160 /* Obtain the next integer from an input line. If K>0, we first read a
161 * new input line from a file; if K<0, we read a line from the keyboard;
162 * if K=0 we use a line that has already been read (and perhaps partially
163 * scanned). If we're at the end of the line or encounter an illegal
164 * character (not a digit, hyphen, or blank), we return 0. */
166 long DIGIT, GETNUM, SIGN;
168 if (source != NULL) MAPLIN(source);
171 while (INLINE[LNPOSN] == 0) {
172 if (LNPOSN > LNLENG) return (GETNUM);
176 if (INLINE[LNPOSN] != 9) {
182 while (!(LNPOSN > LNLENG || INLINE[LNPOSN] == 0)) {
183 DIGIT = INLINE[LNPOSN] - 64;
184 if (DIGIT < 0 || DIGIT > 9) {
188 GETNUM = GETNUM * 10 + DIGIT;
192 GETNUM = GETNUM * SIGN;
197 /* Sections 1, 2, 5, 6, 10, 14. Read messages and set up pointers. */
198 static void read_messages(FILE* database, long sect)
204 loc = GETNUM(database);
205 if (LNLENG >= LNPOSN + 70)
206 BUG(MESSAGE_LINE_GT_70_CHARACTERS);
207 if (loc == -1) return;
209 BUG(NULL_LINE_IN_MESSAGE);
213 BUG(TOO_MANY_WORDS_OF_MESSAGES);
214 LINES[KK] = GETTXT(false, false, false);
215 } while (LINES[KK] != -1);
217 if (loc == OLDLOC) continue;
223 BUG(TOO_MANY_CLASS_OR_TURN_MESSAGES);
224 TTEXT[TRNVLS] = LINUSE;
225 TRNVAL[TRNVLS] = loc;
229 /* now parsed from YAML */
234 BUG(TOO_MANY_RTEXT_MESSAGES);
239 if (loc > 0 && loc <= NOBJECTS)PTEXT[loc] = LINUSE;
243 BUG(TOO_MANY_LOCATIONS);
253 /* The stuff for section 3 is encoded here. Each "from-location" gets a
254 * contiguous section of the "TRAVEL" array. Each entry in travel is
255 * newloc*1000 + KEYWORD (from section 4, motion verbs), and is negated if
256 * this is the last entry for this location. KEY(N) is the index in travel
257 * of the first option at location N. */
258 static void read_section3_stuff(FILE* database)
261 while ((loc = GETNUM(database)) != -1) {
262 long newloc = GETNUM(NULL);
267 TRAVEL[TRVS - 1] = -TRAVEL[TRVS - 1];
269 while ((L = GETNUM(NULL)) != 0) {
270 TRAVEL[TRVS] = newloc * 1000 + L;
273 BUG(TOO_MANY_TRAVEL_OPTIONS);
275 TRAVEL[TRVS - 1] = -TRAVEL[TRVS - 1];
279 /* Here we read in the vocabulary. KTAB(N) is the word number, ATAB(N) is
280 * the corresponding word. The -1 at the end of section 4 is left in KTAB
281 * as an end-marker. */
282 static void read_vocabulary(FILE* database)
284 for (TABNDX = 1; TABNDX <= TABSIZ; TABNDX++) {
285 KTAB[TABNDX] = GETNUM(database);
286 if (KTAB[TABNDX] == -1) return;
287 ATAB[TABNDX] = GETTXT(true, true, true);
289 BUG(TOO_MANY_VOCABULARY_WORDS);
292 /* Read in the initial locations for each object. Also the immovability info.
293 * plac contains initial locations of objects. FIXD is -1 for immovable
294 * objects (including the snake), or = second loc for two-placed objects. */
295 static void read_initial_locations(FILE* database)
298 while ((OBJ = GETNUM(database)) != -1) {
299 PLAC[OBJ] = GETNUM(NULL);
300 FIXD[OBJ] = GETNUM(NULL);
304 /* Read default message numbers for action verbs, store in ACTSPK. */
305 static void read_action_verb_message_nr(FILE* database)
308 while ((verb = GETNUM(database)) != -1) {
309 ACTSPK[verb] = GETNUM(NULL);
313 /* Read info about available liquids and other conditions, store in COND. */
314 static void read_conditions(FILE* database)
317 while ((K = GETNUM(database)) != -1) {
319 while ((loc = GETNUM(NULL)) != 0) {
320 if (is_set(COND[loc], K))
321 BUG(LOCATION_HAS_CONDITION_BIT_BEING_SET_TWICE);
322 COND[loc] = COND[loc] + (1l << K);
328 /* Read data for hints. */
329 static void read_hints(FILE* database)
333 while ((K = GETNUM(database)) != -1) {
334 if (K <= 0 || K > HNTSIZ)
336 for (int I = 1; I <= 4; I++) {
337 HINTS[K][I] = GETNUM(NULL);
339 HNTMAX = (HNTMAX > K ? HNTMAX : K);
343 /* Read the sound/text info, store in OBJSND, OBJTXT, LOCSND. */
344 static void read_sound_text(FILE* database)
347 while ((K = GETNUM(database)) != -1) {
348 long KK = GETNUM(NULL);
349 long I = GETNUM(NULL);
351 OBJSND[K] = (KK > 0 ? KK : 0);
352 OBJTXT[K] = (I > 0 ? I : 0);
361 static int read_database(FILE* database)
364 /* Clear out the various text-pointer arrays. All text is stored in array
365 * lines; each line is preceded by a word pointing to the next pointer (i.e.
366 * the word following the end of the line). The pointer is negative if this is
367 * first line of a message. The text-pointer arrays contain indices of
368 * pointer-words in lines. STEXT(N) is short description of location N.
369 * LTEXT(N) is long description. PTEXT(N) points to message for game.prop(N)=0.
370 * Successive prop messages are found by chasing pointers. RTEXT contains
371 * section 6's stuff. CTEXT(N) points to a player-class message. TTEXT is for
372 * section 14. We also clear COND (see description of section 9 for details). */
374 for (int I = 1; I <= NOBJECTS; I++) {
379 for (int I = 1; I <= RTXSIZ; I++) {
382 for (int I = 1; I <= CLSMAX; I++) {
385 for (int I = 1; I <= LOCSIZ; I++) {
397 /* Start new data section. Sect is the section number. */
400 long sect = GETNUM(database);
406 read_messages(database, sect);
409 read_messages(database, sect);
412 read_section3_stuff(database);
415 read_vocabulary(database);
418 read_messages(database, sect);
421 read_messages(database, sect);
424 read_initial_locations(database);
427 read_action_verb_message_nr(database);
430 read_conditions(database);
433 read_messages(database, sect);
436 read_hints(database);
441 read_sound_text(database);
444 read_messages(database, sect);
447 BUG(INVALID_SECTION_NUMBER_IN_DATABASE);
452 /* Finish constructing internal data format */
454 /* Having read in the database, certain things are now constructed.
455 * game.propS are set to zero. We finish setting up COND by checking for
456 * forced-motion travel entries. The PLAC and FIXD arrays are used
457 * to set up game.atloc(N) as the first object at location N, and
458 * game.link(OBJ) as the next object at the same location as OBJ.
459 * (OBJ>NOBJECTS indicates that game.fixed(OBJ-NOBJECTS)=LOC; game.link(OBJ) is
460 * still the correct link to use.) game.abbrev is zeroed; it controls
461 * whether the abbreviated description is printed. Counts modulo 5
462 * unless "LOOK" is used. */
464 static void write_0d(FILE* header_file, long single, const char* varname)
466 fprintf(header_file, "LOCATION long %s INITIALIZE(= %ld);\n", varname, single);
469 static void write_1d(FILE* header_file, long array[], long dim, const char* varname)
471 fprintf(header_file, "LOCATION long %s[] INITIALIZE(= {\n", varname);
472 for (int i = 0; i < dim; ++i) {
475 fprintf(header_file, "\n");
476 fprintf(header_file, " ");
478 fprintf(header_file, "%ld, ", array[i]);
480 fprintf(header_file, "\n});\n");
483 static void write_hints(FILE* header_file, long matrix[][HINTLEN], long dim1, long dim2, const char* varname)
485 fprintf(header_file, "LOCATION long %s[][%ld] INITIALIZE(= {\n", varname, dim2);
486 for (int i = 0; i < dim1; ++i) {
487 fprintf(header_file, " {");
488 for (int j = 0; j < dim2; ++j) {
489 fprintf(header_file, "%ld, ", matrix[i][j]);
491 fprintf(header_file, "},\n");
493 fprintf(header_file, "});\n");
496 static void write_file(FILE* header_file)
498 fprintf(header_file, "#ifndef DATABASE_H\n");
499 fprintf(header_file, "#define DATABASE_H\n");
500 fprintf(header_file, "\n");
502 fprintf(header_file, "#include \"common.h\"\n");
503 fprintf(header_file, "#define TABSIZ 330\n");
504 fprintf(header_file, "#define HNTSIZ 20\n");
505 fprintf(header_file, "#define TOKLEN %d\n", TOKLEN);
506 fprintf(header_file, "\n");
508 fprintf(header_file, "\n");
509 fprintf(header_file, "#ifdef DEFINE_GLOBALS_FROM_INCLUDES\n");
510 fprintf(header_file, "#define LOCATION\n");
511 fprintf(header_file, "#define INITIALIZE(...) __VA_ARGS__\n");
512 fprintf(header_file, "#else\n");
513 fprintf(header_file, "#define LOCATION extern\n");
514 fprintf(header_file, "#define INITIALIZE(...)\n");
515 fprintf(header_file, "#endif\n");
516 fprintf(header_file, "\n");
519 write_0d(header_file, HNTMAX, "HNTMAX");
520 write_1d(header_file, OBJSND, NOBJECTS + 1, "OBJSND");
521 write_1d(header_file, OBJTXT, NOBJECTS + 1, "OBJTXT");
522 write_1d(header_file, COND, LOCSIZ + 1, "COND");
523 write_1d(header_file, KEY, LOCSIZ + 1, "KEY");
524 write_1d(header_file, LOCSND, LOCSIZ + 1, "LOCSND");
525 write_1d(header_file, TRAVEL, TRVSIZ + 1, "TRAVEL");
526 write_1d(header_file, KTAB, TABSIZ + 1, "KTAB");
527 write_1d(header_file, ATAB, TABSIZ + 1, "ATAB");
528 write_1d(header_file, PLAC, NOBJECTS + 1, "PLAC");
529 write_1d(header_file, FIXD, NOBJECTS + 1, "FIXD");
530 write_1d(header_file, ACTSPK, VRBSIZ + 1, "ACTSPK");
531 write_hints(header_file, HINTS, HNTSIZ + 1, 5, "HINTS");
533 fprintf(header_file, "#undef LOCATION\n");
534 fprintf(header_file, "#undef INITIALIZE\n");
535 fprintf(header_file, "#endif\n");
538 void bug(enum bugtype num, const char *error_string)
540 fprintf(stderr, "Fatal error %d, %s.\n", num, error_string);
546 FILE* database = fopen("adventure.text", "r");
547 read_database(database);
550 FILE* header_file = fopen("database.h", "w");
551 write_file(header_file);
554 return (EXIT_SUCCESS);