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 BUG(long NUM)
120 /* The following conditions are currently considered fatal bugs. Numbers < 20
121 * are detected while reading the database; the others occur at "run time".
122 * 0 Message line > 70 characters
123 * 1 Null line in message
124 * 2 Too many words of messages
125 * 3 Too many travel options
126 * 4 Too many vocabulary words
127 * 5 Required vocabulary word not found
128 * 6 Too many RTEXT messages
130 * 8 Location has cond bit being set twice
131 * 9 Invalid section number in database
132 * 10 Too many locations
133 * 11 Too many class or turn messages
134 * 20 Special travel (500>L>300) exceeds goto list
135 * 21 Ran off end of vocabulary table
136 * 22 Vocabulary type (N/1000) not between 0 and 3
137 * 23 Intransitive action verb exceeds goto list
138 * 24 Transitive action verb exceeds goto list
139 * 25 Conditional travel entry with no alternative
140 * 26 Location has no travel entries
141 * 27 Hint number exceeds goto list
142 * 28 Invalid month returned by date function
143 * 29 Too many parameters given to SETPRM */
145 fprintf(stderr, "Fatal error %ld. See source code for interpretation.\n", NUM);
149 static void MAPLIN(FILE *OPENED)
151 /* Read a line of input, from the specified input source,
152 * translate the chars to integers in the range 0-126 and store
153 * them in the common array "INLINE". Integer values are as follows:
154 * 0 = space [ASCII CODE 40 octal, 32 decimal]
155 * 1-2 = !" [ASCII 41-42 octal, 33-34 decimal]
156 * 3-10 = '()*+,-. [ASCII 47-56 octal, 39-46 decimal]
157 * 11-36 = upper-case letters
158 * 37-62 = lower-case letters
159 * 63 = percent (%) [ASCII 45 octal, 37 decimal]
160 * 64-73 = digits, 0 through 9
161 * Remaining characters can be translated any way that is convenient;
162 * The "TYPE" routine below is used to map them back to characters when
163 * necessary. The above mappings are required so that certain special
164 * characters are known to fit in 6 bits and/or can be easily spotted.
165 * Array elements beyond the end of the line should be filled with 0,
166 * and LNLENG should be set to the index of the last character.
168 * If the data file uses a character other than space (e.g., tab) to
169 * separate numbers, that character should also translate to 0.
171 * This procedure may use the map1,map2 arrays to maintain static data for
172 * the mapping. MAP2(1) is set to 0 when the program starts
173 * and is not changed thereafter unless the routines on this page choose
177 if (NULL == fgets(INLINE + 1, sizeof(INLINE) - 1, OPENED)) {
178 printf("Failed fgets()\n");
180 } while (!feof(OPENED) && INLINE[1] == '#');
183 for (size_t i = 1; i < sizeof(INLINE) && INLINE[i] != 0; ++i) {
184 char val = INLINE[i];
185 INLINE[i] = ascii_to_advent[(unsigned)val];
192 static long GETNUM(FILE *source)
194 /* Obtain the next integer from an input line. If K>0, we first read a
195 * new input line from a file; if K<0, we read a line from the keyboard;
196 * if K=0 we use a line that has already been read (and perhaps partially
197 * scanned). If we're at the end of the line or encounter an illegal
198 * character (not a digit, hyphen, or blank), we return 0. */
200 long DIGIT, GETNUM, SIGN;
202 if (source != NULL) MAPLIN(source);
205 while (INLINE[LNPOSN] == 0) {
206 if (LNPOSN > LNLENG) return (GETNUM);
210 if (INLINE[LNPOSN] != 9) {
216 while (!(LNPOSN > LNLENG || INLINE[LNPOSN] == 0)) {
217 DIGIT = INLINE[LNPOSN] - 64;
218 if (DIGIT < 0 || DIGIT > 9) {
222 GETNUM = GETNUM * 10 + DIGIT;
226 GETNUM = GETNUM * SIGN;
231 /* Sections 1, 2, 5, 6, 10, 14. Read messages and set up pointers. */
232 static void read_messages(FILE* database, long sect)
238 loc = GETNUM(database);
239 if (LNLENG >= LNPOSN + 70)BUG(0);
240 if (loc == -1) return;
241 if (LNLENG < LNPOSN)BUG(1);
244 if (KK >= LINSIZ)BUG(2);
245 LINES[KK] = GETTXT(false, false, false);
246 } while (LINES[KK] != -1);
248 if (loc == OLDLOC) continue;
253 if (TRNVLS > TRNSIZ)BUG(11);
254 TTEXT[TRNVLS] = LINUSE;
255 TRNVAL[TRNVLS] = loc;
260 if (CLSSES > CLSMAX)BUG(11);
261 CTEXT[CLSSES] = LINUSE;
266 if (loc > RTXSIZ)BUG(6);
271 if (loc > 0 && loc <= NOBJECTS)PTEXT[loc] = LINUSE;
274 if (loc > LOCSIZ)BUG(10);
284 /* The stuff for section 3 is encoded here. Each "from-location" gets a
285 * contiguous section of the "TRAVEL" array. Each entry in travel is
286 * newloc*1000 + KEYWORD (from section 4, motion verbs), and is negated if
287 * this is the last entry for this location. KEY(N) is the index in travel
288 * of the first option at location N. */
289 static void read_section3_stuff(FILE* database)
292 while ((loc = GETNUM(database)) != -1) {
293 long newloc = GETNUM(NULL);
298 TRAVEL[TRVS - 1] = -TRAVEL[TRVS - 1];
300 while ((L = GETNUM(NULL)) != 0) {
301 TRAVEL[TRVS] = newloc * 1000 + L;
303 if (TRVS == TRVSIZ)BUG(3);
305 TRAVEL[TRVS - 1] = -TRAVEL[TRVS - 1];
309 /* Here we read in the vocabulary. KTAB(N) is the word number, ATAB(N) is
310 * the corresponding word. The -1 at the end of section 4 is left in KTAB
311 * as an end-marker. */
312 static void read_vocabulary(FILE* database)
314 for (TABNDX = 1; TABNDX <= TABSIZ; TABNDX++) {
315 KTAB[TABNDX] = GETNUM(database);
316 if (KTAB[TABNDX] == -1) return;
317 ATAB[TABNDX] = GETTXT(true, true, true);
322 /* Read in the initial locations for each object. Also the immovability info.
323 * plac contains initial locations of objects. FIXD is -1 for immovable
324 * objects (including the snake), or = second loc for two-placed objects. */
325 static void read_initial_locations(FILE* database)
328 while ((OBJ = GETNUM(database)) != -1) {
329 PLAC[OBJ] = GETNUM(NULL);
330 FIXD[OBJ] = GETNUM(NULL);
334 /* Read default message numbers for action verbs, store in ACTSPK. */
335 static void read_action_verb_message_nr(FILE* database)
338 while ((verb = GETNUM(database)) != -1) {
339 ACTSPK[verb] = GETNUM(NULL);
343 /* Read info about available liquids and other conditions, store in COND. */
344 static void read_conditions(FILE* database)
347 while ((K = GETNUM(database)) != -1) {
349 while ((loc = GETNUM(NULL)) != 0) {
350 if (is_set(COND[loc], K)) BUG(8);
351 COND[loc] = COND[loc] + (1l << K);
357 /* Read data for hints. */
358 static void read_hints(FILE* database)
362 while ((K = GETNUM(database)) != -1) {
363 if (K <= 0 || K > HNTSIZ)BUG(7);
364 for (int I = 1; I <= 4; I++) {
365 HINTS[K][I] = GETNUM(NULL);
367 HNTMAX = (HNTMAX > K ? HNTMAX : K);
371 /* Read the sound/text info, store in OBJSND, OBJTXT, LOCSND. */
372 static void read_sound_text(FILE* database)
375 while ((K = GETNUM(database)) != -1) {
376 long KK = GETNUM(NULL);
377 long I = GETNUM(NULL);
379 OBJSND[K] = (KK > 0 ? KK : 0);
380 OBJTXT[K] = (I > 0 ? I : 0);
389 static int read_database(FILE* database)
392 /* Clear out the various text-pointer arrays. All text is stored in array
393 * lines; each line is preceded by a word pointing to the next pointer (i.e.
394 * the word following the end of the line). The pointer is negative if this is
395 * first line of a message. The text-pointer arrays contain indices of
396 * pointer-words in lines. STEXT(N) is short description of location N.
397 * LTEXT(N) is long description. PTEXT(N) points to message for game.prop(N)=0.
398 * Successive prop messages are found by chasing pointers. RTEXT contains
399 * section 6's stuff. CTEXT(N) points to a player-class message. TTEXT is for
400 * section 14. We also clear COND (see description of section 9 for details). */
402 for (int I = 1; I <= NOBJECTS; I++) {
407 for (int I = 1; I <= RTXSIZ; I++) {
410 for (int I = 1; I <= CLSMAX; I++) {
413 for (int I = 1; I <= LOCSIZ; I++) {
426 /* Start new data section. Sect is the section number. */
429 long sect = GETNUM(database);
435 read_messages(database, sect);
438 read_messages(database, sect);
441 read_section3_stuff(database);
444 read_vocabulary(database);
447 read_messages(database, sect);
450 read_messages(database, sect);
453 read_initial_locations(database);
456 read_action_verb_message_nr(database);
459 read_conditions(database);
462 read_messages(database, sect);
465 read_hints(database);
470 read_sound_text(database);
473 read_messages(database, sect);
481 /* Finish constructing internal data format */
483 /* Having read in the database, certain things are now constructed.
484 * game.propS are set to zero. We finish setting up COND by checking for
485 * forced-motion travel entries. The PLAC and FIXD arrays are used
486 * to set up game.atloc(N) as the first object at location N, and
487 * game.link(OBJ) as the next object at the same location as OBJ.
488 * (OBJ>NOBJECTS indicates that game.fixed(OBJ-NOBJECTS)=LOC; game.link(OBJ) is
489 * still the correct link to use.) game.abbrev is zeroed; it controls
490 * whether the abbreviated description is printed. Counts modulo 5
491 * unless "LOOK" is used. */
493 static void write_0d(FILE* header_file, long single, const char* varname)
495 fprintf(header_file, "LOCATION long %s INITIALIZE(= %ld);\n", varname, single);
498 static void write_1d(FILE* header_file, long array[], long dim, const char* varname)
500 fprintf(header_file, "LOCATION long %s[] INITIALIZE(= {\n", varname);
501 for (int i = 0; i < dim; ++i) {
504 fprintf(header_file, "\n");
505 fprintf(header_file, " ");
507 fprintf(header_file, "%ld, ", array[i]);
509 fprintf(header_file, "\n});\n");
512 static void write_hints(FILE* header_file, long matrix[][HINTLEN], long dim1, long dim2, const char* varname)
514 fprintf(header_file, "LOCATION long %s[][%ld] INITIALIZE(= {\n", varname, dim2);
515 for (int i = 0; i < dim1; ++i) {
516 fprintf(header_file, " {");
517 for (int j = 0; j < dim2; ++j) {
518 fprintf(header_file, "%ld, ", matrix[i][j]);
520 fprintf(header_file, "},\n");
522 fprintf(header_file, "});\n");
525 static void write_file(FILE* header_file)
528 for (int i = 0; i <= 4; i++) {
535 fprintf(header_file, "#ifndef DATABASE_H\n");
536 fprintf(header_file, "#define DATABASE_H\n");
537 fprintf(header_file, "\n");
539 fprintf(header_file, "#include \"common.h\"\n");
540 fprintf(header_file, "#define TABSIZ 330\n");
541 fprintf(header_file, "#define HNTSIZ 20\n");
542 fprintf(header_file, "#define TOKLEN %d\n", TOKLEN);
543 fprintf(header_file, "#define MAXDIE %d\n", MAXDIE);
544 fprintf(header_file, "\n");
546 fprintf(header_file, "\n");
547 fprintf(header_file, "#ifdef DEFINE_GLOBALS_FROM_INCLUDES\n");
548 fprintf(header_file, "#define LOCATION\n");
549 fprintf(header_file, "#define INITIALIZE(...) __VA_ARGS__\n");
550 fprintf(header_file, "#else\n");
551 fprintf(header_file, "#define LOCATION extern\n");
552 fprintf(header_file, "#define INITIALIZE(...)\n");
553 fprintf(header_file, "#endif\n");
554 fprintf(header_file, "\n");
557 write_0d(header_file, TRNVLS, "TRNVLS");
558 write_0d(header_file, HNTMAX, "HNTMAX");
559 write_1d(header_file, OBJSND, NOBJECTS + 1, "OBJSND");
560 write_1d(header_file, OBJTXT, NOBJECTS + 1, "OBJTXT");
561 write_1d(header_file, COND, LOCSIZ + 1, "COND");
562 write_1d(header_file, KEY, LOCSIZ + 1, "KEY");
563 write_1d(header_file, LOCSND, LOCSIZ + 1, "LOCSND");
564 write_1d(header_file, CVAL, CLSMAX + 1, "CVAL");
565 write_1d(header_file, TRNVAL, TRNSIZ + 1, "TRNVAL");
566 write_1d(header_file, TRAVEL, TRVSIZ + 1, "TRAVEL");
567 write_1d(header_file, KTAB, TABSIZ + 1, "KTAB");
568 write_1d(header_file, ATAB, TABSIZ + 1, "ATAB");
569 write_1d(header_file, PLAC, NOBJECTS + 1, "PLAC");
570 write_1d(header_file, FIXD, NOBJECTS + 1, "FIXD");
571 write_1d(header_file, ACTSPK, VRBSIZ + 1, "ACTSPK");
572 write_hints(header_file, HINTS, HNTSIZ + 1, 5, "HINTS");
574 fprintf(header_file, "#undef LOCATION\n");
575 fprintf(header_file, "#undef INITIALIZE\n");
576 fprintf(header_file, "#endif\n");
581 FILE* database = fopen("adventure.text", "r");
582 read_database(database);
585 FILE* header_file = fopen("database.h", "w");
586 write_file(header_file);
589 return (EXIT_SUCCESS);