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
37 long PTEXT[NOBJECTS + 1];
38 long RTEXT[RTXSIZ + 1];
39 long CTEXT[CLSMAX + 1];
40 long OBJSND[NOBJECTS + 1];
41 long OBJTXT[NOBJECTS + 1];
42 long STEXT[LOCSIZ + 1];
43 long LTEXT[LOCSIZ + 1];
44 long COND[LOCSIZ + 1];
46 long LOCSND[LOCSIZ + 1];
47 long LINES[LINSIZ + 1];
48 long CVAL[CLSMAX + 1];
49 long TTEXT[TRNSIZ + 1];
50 long TRNVAL[TRNSIZ + 1];
51 long TRAVEL[TRVSIZ + 1];
52 long KTAB[TABSIZ + 1];
53 long ATAB[TABSIZ + 1];
54 long PLAC[NOBJECTS + 1];
55 long FIXD[NOBJECTS + 1];
56 long ACTSPK[VRBSIZ + 1];
57 long HINTS[HNTSIZ + 1][HINTLEN];
60 static bool is_set(long var, long position)
62 long mask = 1l << position;
63 bool result = (var & mask) == mask;
67 static long GETTXT(long SKIP, long ONEWRD, long UPPER)
69 /* Take characters from an input line and pack them into 30-bit words.
70 * Skip says to skip leading blanks. ONEWRD says stop if we come to a
71 * blank. UPPER says to map all letters to uppercase. If we reach the
72 * end of the line, the word is filled up with blanks (which encode as 0's).
73 * If we're already at end of line when GETTXT is called, we return -1. */
76 static long SPLITTING = -1;
78 if (LNPOSN != SPLITTING)
84 if ((!SKIP) || INLINE[LNPOSN] != 0)
90 for (int I = 1; I <= TOKLEN; I++) {
92 if (LNPOSN > LNLENG || (ONEWRD && INLINE[LNPOSN] == 0))
94 char current = INLINE[LNPOSN];
97 if (UPPER && current >= 37)
98 current = current - 26;
99 TEXT = TEXT + current;
103 if (SPLITTING != LNPOSN) {
109 TEXT = TEXT + current - 63;
117 static void MAPLIN(FILE *OPENED)
119 /* Read a line of input, from the specified input source,
120 * translate the chars to integers in the range 0-126 and store
121 * them in the common array "INLINE". Integer values are as follows:
122 * 0 = space [ASCII CODE 40 octal, 32 decimal]
123 * 1-2 = !" [ASCII 41-42 octal, 33-34 decimal]
124 * 3-10 = '()*+,-. [ASCII 47-56 octal, 39-46 decimal]
125 * 11-36 = upper-case letters
126 * 37-62 = lower-case letters
127 * 63 = percent (%) [ASCII 45 octal, 37 decimal]
128 * 64-73 = digits, 0 through 9
129 * Remaining characters can be translated any way that is convenient;
130 * The "TYPE" routine below is used to map them back to characters when
131 * necessary. The above mappings are required so that certain special
132 * characters are known to fit in 6 bits and/or can be easily spotted.
133 * Array elements beyond the end of the line should be filled with 0,
134 * and LNLENG should be set to the index of the last character.
136 * If the data file uses a character other than space (e.g., tab) to
137 * separate numbers, that character should also translate to 0.
139 * This procedure may use the map1,map2 arrays to maintain static data for
140 * the mapping. MAP2(1) is set to 0 when the program starts
141 * and is not changed thereafter unless the routines on this page choose
145 if (NULL == fgets(INLINE + 1, sizeof(INLINE) - 1, OPENED)) {
146 printf("Failed fgets()\n");
148 } while (!feof(OPENED) && INLINE[1] == '#');
151 for (size_t i = 1; i < sizeof(INLINE) && INLINE[i] != 0; ++i) {
152 char val = INLINE[i];
153 INLINE[i] = ascii_to_advent[(unsigned)val];
160 static long GETNUM(FILE *source)
162 /* Obtain the next integer from an input line. If K>0, we first read a
163 * new input line from a file; if K<0, we read a line from the keyboard;
164 * if K=0 we use a line that has already been read (and perhaps partially
165 * scanned). If we're at the end of the line or encounter an illegal
166 * character (not a digit, hyphen, or blank), we return 0. */
168 long DIGIT, GETNUM, SIGN;
170 if (source != NULL) MAPLIN(source);
173 while (INLINE[LNPOSN] == 0) {
174 if (LNPOSN > LNLENG) return (GETNUM);
178 if (INLINE[LNPOSN] != 9) {
184 while (!(LNPOSN > LNLENG || INLINE[LNPOSN] == 0)) {
185 DIGIT = INLINE[LNPOSN] - 64;
186 if (DIGIT < 0 || DIGIT > 9) {
190 GETNUM = GETNUM * 10 + DIGIT;
194 GETNUM = GETNUM * SIGN;
199 /* Sections 1, 2, 5, 6, 10, 14. Read messages and set up pointers. */
200 static void read_messages(FILE* database, long sect)
206 loc = GETNUM(database);
207 if (LNLENG >= LNPOSN + 70)
208 BUG(MESSAGE_LINE_GT_70_CHARACTERS);
209 if (loc == -1) return;
211 BUG(NULL_LINE_IN_MESSAGE);
215 BUG(TOO_MANY_WORDS_OF_MESSAGES);
216 LINES[KK] = GETTXT(false, false, false);
217 } while (LINES[KK] != -1);
219 if (loc == OLDLOC) continue;
225 BUG(TOO_MANY_CLASS_OR_TURN_MESSAGES);
226 TTEXT[TRNVLS] = LINUSE;
227 TRNVAL[TRNVLS] = loc;
233 BUG(TOO_MANY_CLASS_OR_TURN_MESSAGES);
234 CTEXT[CLSSES] = LINUSE;
240 BUG(TOO_MANY_RTEXT_MESSAGES);
245 if (loc > 0 && loc <= NOBJECTS)PTEXT[loc] = LINUSE;
249 BUG(TOO_MANY_LOCATIONS);
259 /* The stuff for section 3 is encoded here. Each "from-location" gets a
260 * contiguous section of the "TRAVEL" array. Each entry in travel is
261 * newloc*1000 + KEYWORD (from section 4, motion verbs), and is negated if
262 * this is the last entry for this location. KEY(N) is the index in travel
263 * of the first option at location N. */
264 static void read_section3_stuff(FILE* database)
267 while ((loc = GETNUM(database)) != -1) {
268 long newloc = GETNUM(NULL);
273 TRAVEL[TRVS - 1] = -TRAVEL[TRVS - 1];
275 while ((L = GETNUM(NULL)) != 0) {
276 TRAVEL[TRVS] = newloc * 1000 + L;
279 BUG(TOO_MANY_TRAVEL_OPTIONS);
281 TRAVEL[TRVS - 1] = -TRAVEL[TRVS - 1];
285 /* Here we read in the vocabulary. KTAB(N) is the word number, ATAB(N) is
286 * the corresponding word. The -1 at the end of section 4 is left in KTAB
287 * as an end-marker. */
288 static void read_vocabulary(FILE* database)
290 for (TABNDX = 1; TABNDX <= TABSIZ; TABNDX++) {
291 KTAB[TABNDX] = GETNUM(database);
292 if (KTAB[TABNDX] == -1) return;
293 ATAB[TABNDX] = GETTXT(true, true, true);
295 BUG(TOO_MANY_VOCABULARY_WORDS);
298 /* Read in the initial locations for each object. Also the immovability info.
299 * plac contains initial locations of objects. FIXD is -1 for immovable
300 * objects (including the snake), or = second loc for two-placed objects. */
301 static void read_initial_locations(FILE* database)
304 while ((OBJ = GETNUM(database)) != -1) {
305 PLAC[OBJ] = GETNUM(NULL);
306 FIXD[OBJ] = GETNUM(NULL);
310 /* Read default message numbers for action verbs, store in ACTSPK. */
311 static void read_action_verb_message_nr(FILE* database)
314 while ((verb = GETNUM(database)) != -1) {
315 ACTSPK[verb] = GETNUM(NULL);
319 /* Read info about available liquids and other conditions, store in COND. */
320 static void read_conditions(FILE* database)
323 while ((K = GETNUM(database)) != -1) {
325 while ((loc = GETNUM(NULL)) != 0) {
326 if (is_set(COND[loc], K))
327 BUG(LOCATION_HAS_CONDITION_BIT_BEING_SET_TWICE);
328 COND[loc] = COND[loc] + (1l << K);
334 /* Read data for hints. */
335 static void read_hints(FILE* database)
339 while ((K = GETNUM(database)) != -1) {
340 if (K <= 0 || K > HNTSIZ)
342 for (int I = 1; I <= 4; I++) {
343 HINTS[K][I] = GETNUM(NULL);
345 HNTMAX = (HNTMAX > K ? HNTMAX : K);
349 /* Read the sound/text info, store in OBJSND, OBJTXT, LOCSND. */
350 static void read_sound_text(FILE* database)
353 while ((K = GETNUM(database)) != -1) {
354 long KK = GETNUM(NULL);
355 long I = GETNUM(NULL);
357 OBJSND[K] = (KK > 0 ? KK : 0);
358 OBJTXT[K] = (I > 0 ? I : 0);
367 static int read_database(FILE* database)
370 /* Clear out the various text-pointer arrays. All text is stored in array
371 * lines; each line is preceded by a word pointing to the next pointer (i.e.
372 * the word following the end of the line). The pointer is negative if this is
373 * first line of a message. The text-pointer arrays contain indices of
374 * pointer-words in lines. STEXT(N) is short description of location N.
375 * LTEXT(N) is long description. PTEXT(N) points to message for game.prop(N)=0.
376 * Successive prop messages are found by chasing pointers. RTEXT contains
377 * section 6's stuff. CTEXT(N) points to a player-class message. TTEXT is for
378 * section 14. We also clear COND (see description of section 9 for details). */
380 for (int I = 1; I <= NOBJECTS; I++) {
385 for (int I = 1; I <= RTXSIZ; I++) {
388 for (int I = 1; I <= CLSMAX; I++) {
391 for (int I = 1; I <= LOCSIZ; I++) {
404 /* Start new data section. Sect is the section number. */
407 long sect = GETNUM(database);
413 read_messages(database, sect);
416 read_messages(database, sect);
419 read_section3_stuff(database);
422 read_vocabulary(database);
425 read_messages(database, sect);
428 read_messages(database, sect);
431 read_initial_locations(database);
434 read_action_verb_message_nr(database);
437 read_conditions(database);
440 read_messages(database, sect);
443 read_hints(database);
448 read_sound_text(database);
451 read_messages(database, sect);
454 BUG(INVALID_SECTION_NUMBER_IN_DATABASE);
459 /* Finish constructing internal data format */
461 /* Having read in the database, certain things are now constructed.
462 * game.propS are set to zero. We finish setting up COND by checking for
463 * forced-motion travel entries. The PLAC and FIXD arrays are used
464 * to set up game.atloc(N) as the first object at location N, and
465 * game.link(OBJ) as the next object at the same location as OBJ.
466 * (OBJ>NOBJECTS indicates that game.fixed(OBJ-NOBJECTS)=LOC; game.link(OBJ) is
467 * still the correct link to use.) game.abbrev is zeroed; it controls
468 * whether the abbreviated description is printed. Counts modulo 5
469 * unless "LOOK" is used. */
471 static void write_0d(FILE* header_file, long single, const char* varname)
473 fprintf(header_file, "LOCATION long %s INITIALIZE(= %ld);\n", varname, single);
476 static void write_1d(FILE* header_file, long array[], long dim, const char* varname)
478 fprintf(header_file, "LOCATION long %s[] INITIALIZE(= {\n", varname);
479 for (int i = 0; i < dim; ++i) {
482 fprintf(header_file, "\n");
483 fprintf(header_file, " ");
485 fprintf(header_file, "%ld, ", array[i]);
487 fprintf(header_file, "\n});\n");
490 static void write_hints(FILE* header_file, long matrix[][HINTLEN], long dim1, long dim2, const char* varname)
492 fprintf(header_file, "LOCATION long %s[][%ld] INITIALIZE(= {\n", varname, dim2);
493 for (int i = 0; i < dim1; ++i) {
494 fprintf(header_file, " {");
495 for (int j = 0; j < dim2; ++j) {
496 fprintf(header_file, "%ld, ", matrix[i][j]);
498 fprintf(header_file, "},\n");
500 fprintf(header_file, "});\n");
503 static void write_file(FILE* header_file)
505 fprintf(header_file, "#ifndef DATABASE_H\n");
506 fprintf(header_file, "#define DATABASE_H\n");
507 fprintf(header_file, "\n");
509 fprintf(header_file, "#include \"common.h\"\n");
510 fprintf(header_file, "#define TABSIZ 330\n");
511 fprintf(header_file, "#define HNTSIZ 20\n");
512 fprintf(header_file, "#define TOKLEN %d\n", TOKLEN);
513 fprintf(header_file, "\n");
515 fprintf(header_file, "\n");
516 fprintf(header_file, "#ifdef DEFINE_GLOBALS_FROM_INCLUDES\n");
517 fprintf(header_file, "#define LOCATION\n");
518 fprintf(header_file, "#define INITIALIZE(...) __VA_ARGS__\n");
519 fprintf(header_file, "#else\n");
520 fprintf(header_file, "#define LOCATION extern\n");
521 fprintf(header_file, "#define INITIALIZE(...)\n");
522 fprintf(header_file, "#endif\n");
523 fprintf(header_file, "\n");
526 write_0d(header_file, TRNVLS, "TRNVLS");
527 write_0d(header_file, HNTMAX, "HNTMAX");
528 write_1d(header_file, OBJSND, NOBJECTS + 1, "OBJSND");
529 write_1d(header_file, OBJTXT, NOBJECTS + 1, "OBJTXT");
530 write_1d(header_file, COND, LOCSIZ + 1, "COND");
531 write_1d(header_file, KEY, LOCSIZ + 1, "KEY");
532 write_1d(header_file, LOCSND, LOCSIZ + 1, "LOCSND");
533 write_1d(header_file, CVAL, CLSMAX + 1, "CVAL");
534 write_1d(header_file, TRNVAL, TRNSIZ + 1, "TRNVAL");
535 write_1d(header_file, TRAVEL, TRVSIZ + 1, "TRAVEL");
536 write_1d(header_file, KTAB, TABSIZ + 1, "KTAB");
537 write_1d(header_file, ATAB, TABSIZ + 1, "ATAB");
538 write_1d(header_file, PLAC, NOBJECTS + 1, "PLAC");
539 write_1d(header_file, FIXD, NOBJECTS + 1, "FIXD");
540 write_1d(header_file, ACTSPK, VRBSIZ + 1, "ACTSPK");
541 write_hints(header_file, HINTS, HNTSIZ + 1, 5, "HINTS");
543 fprintf(header_file, "#undef LOCATION\n");
544 fprintf(header_file, "#undef INITIALIZE\n");
545 fprintf(header_file, "#endif\n");
548 void bug(enum bugtype num, const char *error_string)
550 fprintf(stderr, "Fatal error %d, %s.\n", num, error_string);
556 FILE* database = fopen("adventure.text", "r");
557 read_database(database);
560 FILE* header_file = fopen("database.h", "w");
561 write_file(header_file);
564 return (EXIT_SUCCESS);