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
25 /* hard limit, will be propagated to database.h */
28 const char advent_to_ascii[] = {0, 32, 33, 34, 39, 40, 41, 42, 43, 44, 45, 46, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 37, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 0, 1, 2, 3, 4, 5, 6, 7, 8, 0, 0, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 35, 36, 38, 47, 58, 59, 60, 61, 62, 63, 64, 91, 92, 93, 94, 95, 96, 123, 124, 125, 126, 0};
29 /* Rendered from the now-gone MPINIT() function */
30 const char ascii_to_advent[] = {0, 74, 75, 76, 77, 78, 79, 80, 81, 82, 0, 0, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 0, 1, 2, 106, 107, 63, 108, 3, 4, 5, 6, 7, 8, 9, 10, 109, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 110, 111, 112, 113, 114, 115, 116, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 117, 118, 119, 120, 121, 122, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 123, 124, 125, 126, 83};
32 // Global variables for use in functions below that can gradually disappear as code is cleaned up
35 static char INLINE[LINESIZE+1];
39 // Storage for what comes out of the database
46 long PTEXT[NOBJECTS+1];
47 long RTEXT[RTXSIZ + 1];
48 long CTEXT[CLSMAX + 1];
49 long OBJSND[NOBJECTS+1];
50 long OBJTXT[NOBJECTS+1];
51 long STEXT[LOCSIZ + 1];
52 long LTEXT[LOCSIZ + 1];
53 long COND[LOCSIZ + 1];
55 long LOCSND[LOCSIZ + 1];
56 long LINES[LINSIZ + 1];
57 long CVAL[CLSMAX + 1];
58 long TTEXT[TRNSIZ + 1];
59 long TRNVAL[TRNSIZ + 1];
60 long TRAVEL[TRVSIZ + 1];
61 long KTAB[TABSIZ + 1];
62 long ATAB[TABSIZ + 1];
63 long PLAC[NOBJECTS+1];
64 long FIXD[NOBJECTS+1];
65 long ACTSPK[VRBSIZ + 1];
66 long HINTS[HNTSIZ + 1][HINTLEN];
68 bool is_set(long, long);
69 long GETTXT(long, long, long);
73 int read_database(FILE*);
74 void read_messages(FILE*, long);
75 void read_section3_stuff(FILE*);
76 void read_vocabulary(FILE*);
77 void read_initial_locations(FILE*);
78 void read_action_verb_message_nr(FILE*);
79 void read_conditions(FILE*);
80 void read_hints(FILE*);
81 void read_sound_text(FILE*);
82 void write_0d(FILE*, FILE*, long, char*);
83 void write_1d(FILE*, FILE*, long[], long, char*);
84 void write_hints(FILE*, FILE*, long[][HINTLEN], long, long, char*);
85 void write_files(FILE*, FILE*);
87 bool is_set(long var, long position)
89 long mask = 1l << position;
90 bool result = (var & mask) == mask;
94 long GETTXT(long SKIP,long ONEWRD, long UPPER) {
95 /* Take characters from an input line and pack them into 30-bit words.
96 * Skip says to skip leading blanks. ONEWRD says stop if we come to a
97 * blank. UPPER says to map all letters to uppercase. If we reach the
98 * end of the line, the word is filled up with blanks (which encode as 0's).
99 * If we're already at end of line when GETTXT is called, we return -1. */
102 static long SPLITTING = -1;
104 if(LNPOSN != SPLITTING)
110 if((!SKIP) || INLINE[LNPOSN] != 0)
116 for (int I=1; I<=TOKLEN; I++) {
118 if(LNPOSN > LNLENG || (ONEWRD && INLINE[LNPOSN] == 0))
120 char current=INLINE[LNPOSN];
123 if(UPPER && current >= 37)
129 if(SPLITTING != LNPOSN) {
135 TEXT=TEXT+current-63;
145 /* The following conditions are currently considered fatal bugs. Numbers < 20
146 * are detected while reading the database; the others occur at "run time".
147 * 0 Message line > 70 characters
148 * 1 Null line in message
149 * 2 Too many words of messages
150 * 3 Too many travel options
151 * 4 Too many vocabulary words
152 * 5 Required vocabulary word not found
153 * 6 Too many RTEXT messages
155 * 8 Location has cond bit being set twice
156 * 9 Invalid section number in database
157 * 10 Too many locations
158 * 11 Too many class or turn messages
159 * 20 Special travel (500>L>300) exceeds goto list
160 * 21 Ran off end of vocabulary table
161 * 22 Vocabulary type (N/1000) not between 0 and 3
162 * 23 Intransitive action verb exceeds goto list
163 * 24 Transitive action verb exceeds goto list
164 * 25 Conditional travel entry with no alternative
165 * 26 Location has no travel entries
166 * 27 Hint number exceeds goto list
167 * 28 Invalid month returned by date function
168 * 29 Too many parameters given to SETPRM */
170 fprintf(stderr, "Fatal error %ld. See source code for interpretation.\n", NUM);
174 void MAPLIN(FILE *OPENED) {
175 /* Read a line of input, from the specified input source,
176 * translate the chars to integers in the range 0-126 and store
177 * them in the common array "INLINE". Integer values are as follows:
178 * 0 = space [ASCII CODE 40 octal, 32 decimal]
179 * 1-2 = !" [ASCII 41-42 octal, 33-34 decimal]
180 * 3-10 = '()*+,-. [ASCII 47-56 octal, 39-46 decimal]
181 * 11-36 = upper-case letters
182 * 37-62 = lower-case letters
183 * 63 = percent (%) [ASCII 45 octal, 37 decimal]
184 * 64-73 = digits, 0 through 9
185 * Remaining characters can be translated any way that is convenient;
186 * The "TYPE" routine below is used to map them back to characters when
187 * necessary. The above mappings are required so that certain special
188 * characters are known to fit in 6 bits and/or can be easily spotted.
189 * Array elements beyond the end of the line should be filled with 0,
190 * and LNLENG should be set to the index of the last character.
192 * If the data file uses a character other than space (e.g., tab) to
193 * separate numbers, that character should also translate to 0.
195 * This procedure may use the map1,map2 arrays to maintain static data for
196 * the mapping. MAP2(1) is set to 0 when the program starts
197 * and is not changed thereafter unless the routines on this page choose
201 fgets(INLINE + 1, sizeof(INLINE) - 1, OPENED);
203 while (!feof(OPENED) && INLINE[1] == '#');
206 for (size_t i = 1; i <= sizeof(INLINE) && INLINE[i] != 0; ++i)
208 char val = INLINE[i] + 1;
209 INLINE[i] = ascii_to_advent[(unsigned)val];
216 long GETNUM(FILE *source) {
217 /* Obtain the next integer from an input line. If K>0, we first read a
218 * new input line from a file; if K<0, we read a line from the keyboard;
219 * if K=0 we use a line that has already been read (and perhaps partially
220 * scanned). If we're at the end of the line or encounter an illegal
221 * character (not a digit, hyphen, or blank), we return 0. */
223 long DIGIT, GETNUM, SIGN;
225 if(source != NULL) MAPLIN(source);
228 while (INLINE[LNPOSN] == 0) {
229 if (LNPOSN > LNLENG) return(GETNUM);
233 if(INLINE[LNPOSN] != 9)
242 while (!(LNPOSN > LNLENG || INLINE[LNPOSN] == 0))
244 DIGIT=INLINE[LNPOSN]-64;
245 if(DIGIT < 0 || DIGIT > 9)
250 GETNUM=GETNUM*10+DIGIT;
259 int read_database(FILE* database) {
261 /* Clear out the various text-pointer arrays. All text is stored in array
262 * lines; each line is preceded by a word pointing to the next pointer (i.e.
263 * the word following the end of the line). The pointer is negative if this is
264 * first line of a message. The text-pointer arrays contain indices of
265 * pointer-words in lines. STEXT(N) is short description of location N.
266 * LTEXT(N) is long description. PTEXT(N) points to message for PROP(N)=0.
267 * Successive prop messages are found by chasing pointers. RTEXT contains
268 * section 6's stuff. CTEXT(N) points to a player-class message. TTEXT is for
269 * section 14. We also clear COND (see description of section 9 for details). */
271 for (int I=1; I<=300; I++) {
272 if(I <= NOBJECTS) PTEXT[I] = 0;
273 if(I <= RTXSIZ) RTEXT[I] = 0;
274 if(I <= CLSMAX) CTEXT[I] = 0;
275 if(I <= NOBJECTS) OBJSND[I] = 0;
276 if(I <= NOBJECTS) OBJTXT[I] = 0;
277 if(I > LOCSIZ) break;
290 /* Start new data section. Sect is the section number. */
294 long SECT=GETNUM(database);
299 case 1: read_messages(database, SECT); break;
300 case 2: read_messages(database, SECT); break;
301 case 3: read_section3_stuff(database); break;
302 case 4: read_vocabulary(database); break;
303 case 5: read_messages(database, SECT); break;
304 case 6: read_messages(database, SECT); break;
305 case 7: read_initial_locations(database); break;
306 case 8: read_action_verb_message_nr(database); break;
307 case 9: read_conditions(database); break;
308 case 10: read_messages(database, SECT); break;
309 case 11: read_hints(database); break;
311 case 13: read_sound_text(database); break;
312 case 14: read_messages(database, SECT); break;
319 /* Sections 1, 2, 5, 6, 10, 14. Read messages and set up pointers. */
320 void read_messages(FILE* database, long SECT)
327 LOC=GETNUM(database);
328 if(LNLENG >= LNPOSN+70)BUG(0);
329 if(LOC == -1) return;
330 if(LNLENG < LNPOSN)BUG(1);
333 if(KK >= LINSIZ)BUG(2);
334 LINES[KK]=GETTXT(false,false,false);
336 while(LINES[KK] != -1);
338 if(LOC == OLDLOC) continue;
344 if(TRNVLS > TRNSIZ)BUG(11);
345 TTEXT[TRNVLS]=LINUSE;
352 if(CLSSES > CLSMAX)BUG(11);
353 CTEXT[CLSSES]=LINUSE;
359 if(LOC > RTXSIZ)BUG(6);
365 if(LOC > 0 && LOC <= NOBJECTS)PTEXT[LOC]=LINUSE;
368 if(LOC > LOCSIZ)BUG(10);
380 /* The stuff for section 3 is encoded here. Each "from-location" gets a
381 * contiguous section of the "TRAVEL" array. Each entry in travel is
382 * NEWLOC*1000 + KEYWORD (from section 4, motion verbs), and is negated if
383 * this is the last entry for this location. KEY(N) is the index in travel
384 * of the first option at location N. */
385 void read_section3_stuff(FILE* database)
388 while((LOC=GETNUM(database)) != -1)
390 long NEWLOC=GETNUM(NULL);
398 TRAVEL[TRVS-1]= -TRAVEL[TRVS-1];
400 while((L=GETNUM(NULL)) != 0)
402 TRAVEL[TRVS]=NEWLOC*1000+L;
404 if(TRVS == TRVSIZ)BUG(3);
406 TRAVEL[TRVS-1]= -TRAVEL[TRVS-1];
411 /* Here we read in the vocabulary. KTAB(N) is the word number, ATAB(N) is
412 * the corresponding word. The -1 at the end of section 4 is left in KTAB
413 * as an end-marker. */
414 void read_vocabulary(FILE* database)
416 for (TABNDX=1; TABNDX<=TABSIZ; TABNDX++)
418 KTAB[TABNDX]=GETNUM(database);
419 if(KTAB[TABNDX] == -1) return;
420 ATAB[TABNDX]=GETTXT(true,true,true);
426 /* Read in the initial locations for each object. Also the immovability info.
427 * plac contains initial locations of objects. FIXD is -1 for immovable
428 * objects (including the snake), or = second loc for two-placed objects. */
429 void read_initial_locations(FILE* database)
432 while((OBJ=GETNUM(database)) != -1)
434 PLAC[OBJ]=GETNUM(NULL);
435 FIXD[OBJ]=GETNUM(NULL);
440 /* Read default message numbers for action verbs, store in ACTSPK. */
441 void read_action_verb_message_nr(FILE* database)
444 while((VERB=GETNUM(database)) != -1)
446 ACTSPK[VERB]=GETNUM(NULL);
451 /* Read info about available liquids and other conditions, store in COND. */
452 void read_conditions(FILE* database)
455 while((K=GETNUM(database)) != -1)
458 while((LOC=GETNUM(NULL)) != 0)
460 if(is_set(COND[LOC],K)) BUG(8);
461 COND[LOC]=COND[LOC] + (1l << K);
467 /* Read data for hints. */
468 void read_hints(FILE* database)
472 while((K=GETNUM(database)) != -1)
474 if(K <= 0 || K > HNTSIZ)BUG(7);
475 for (int I=1; I<=4; I++)
477 HINTS[K][I] =GETNUM(NULL);
479 HNTMAX=(HNTMAX>K ? HNTMAX : K);
484 /* Read the sound/text info, store in OBJSND, OBJTXT, LOCSND. */
485 void read_sound_text(FILE* database)
488 while((K=GETNUM(database)) != -1)
490 long KK=GETNUM(NULL);
494 OBJSND[K]=(KK>0 ? KK : 0);
495 OBJTXT[K]=(I>0 ? I : 0);
503 /* Finish constructing internal data format */
505 /* Having read in the database, certain things are now constructed.
506 * PROPS are set to zero. We finish setting up COND by checking for
507 * forced-motion travel entries. The PLAC and FIXD arrays are used
508 * to set up ATLOC(N) as the first object at location N, and
509 * LINK(OBJ) as the next object at the same location as OBJ.
510 * (OBJ>NOBJECTS indicates that FIXED(OBJ-NOBJECTS)=LOC; LINK(OBJ) is
511 * still the correct link to use.) game.abbrev is zeroed; it controls
512 * whether the abbreviated description is printed. Counts modulo 5
513 * unless "LOOK" is used. */
515 void write_0d(FILE* c_file, FILE* header_file, long single, char* varname)
517 fprintf(c_file, "long %s = %ld;\n", varname, single);
518 fprintf(header_file, "extern long %s;\n", varname);
521 void write_1d(FILE* c_file, FILE* header_file, long array[], long dim, char* varname)
523 fprintf(c_file, "long %s[] = {\n", varname);
524 for (int i = 0; i < dim; ++i)
529 fprintf(c_file, "\n");
530 fprintf(c_file, " ");
532 fprintf(c_file, "%ld, ", array[i]);
534 fprintf(c_file, "\n};\n");
535 fprintf(header_file, "extern long %s[%ld];\n", varname, dim);
538 void write_hints(FILE* c_file, FILE* header_file, long matrix[][HINTLEN], long dim1, long dim2, char* varname)
540 fprintf(c_file, "long %s[][%ld] = {\n", varname, dim2);
541 for (int i = 0; i < dim1; ++i)
543 fprintf(c_file, " {");
544 for (int j = 0; j < dim2; ++j)
546 fprintf(c_file, "%ld, ", matrix[i][j]);
548 fprintf(c_file, "},\n");
550 fprintf(c_file, "};\n");
551 fprintf(header_file, "extern long %s[%ld][%ld];\n", varname, dim1, dim2);
554 void write_files(FILE* c_file, FILE* header_file)
556 // preprocessor defines for the header
557 fprintf(header_file, "#include \"sizes.h\"\n");
558 fprintf(header_file, "#define RTXSIZ 277\n");
559 fprintf(header_file, "#define CLSMAX 12\n");
560 fprintf(header_file, "#define LINSIZ %d\n", LINSIZ);
561 fprintf(header_file, "#define TRNSIZ 5\n");
562 fprintf(header_file, "#define TABSIZ 330\n");
563 fprintf(header_file, "#define VRBSIZ 35\n");
564 fprintf(header_file, "#define HNTSIZ 20\n");
565 fprintf(header_file, "#define TRVSIZ 885\n");
566 fprintf(header_file, "#define TOKLEN %d\n", TOKLEN);
567 fprintf(header_file, "#define HINTLEN %d\n", HINTLEN);
568 fprintf(header_file, "\n");
570 // include the header in the C file
571 fprintf(c_file, "#include \"database.h\"\n");
572 fprintf(c_file, "\n");
575 write_0d(c_file, header_file, LINUSE, "LINUSE");
576 write_0d(c_file, header_file, TRVS, "TRVS");
577 write_0d(c_file, header_file, CLSSES, "CLSSES");
578 write_0d(c_file, header_file, TRNVLS, "TRNVLS");
579 write_0d(c_file, header_file, TABNDX, "TABNDX");
580 write_0d(c_file, header_file, HNTMAX, "HNTMAX");
581 write_1d(c_file, header_file, PTEXT, NOBJECTS + 1, "PTEXT");
582 write_1d(c_file, header_file, RTEXT, RTXSIZ + 1, "RTEXT");
583 write_1d(c_file, header_file, CTEXT, CLSMAX + 1, "CTEXT");
584 write_1d(c_file, header_file, OBJSND, NOBJECTS + 1, "OBJSND");
585 write_1d(c_file, header_file, OBJTXT, NOBJECTS + 1, "OBJTXT");
586 write_1d(c_file, header_file, STEXT, LOCSIZ + 1, "STEXT");
587 write_1d(c_file, header_file, LTEXT, LOCSIZ + 1, "LTEXT");
588 write_1d(c_file, header_file, COND, LOCSIZ + 1, "COND");
589 write_1d(c_file, header_file, KEY, LOCSIZ + 1, "KEY");
590 write_1d(c_file, header_file, LOCSND, LOCSIZ + 1, "LOCSND");
591 write_1d(c_file, header_file, LINES, LINSIZ + 1, "LINES");
592 write_1d(c_file, header_file, CVAL, CLSMAX + 1, "CVAL");
593 write_1d(c_file, header_file, TTEXT, TRNSIZ + 1, "TTEXT");
594 write_1d(c_file, header_file, TRNVAL, TRNSIZ + 1, "TRNVAL");
595 write_1d(c_file, header_file, TRAVEL, TRVSIZ + 1, "TRAVEL");
596 write_1d(c_file, header_file, KTAB, TABSIZ + 1, "KTAB");
597 write_1d(c_file, header_file, ATAB, TABSIZ + 1, "ATAB");
598 write_1d(c_file, header_file, PLAC, NOBJECTS + 1, "PLAC");
599 write_1d(c_file, header_file, FIXD, NOBJECTS + 1, "FIXD");
600 write_1d(c_file, header_file, ACTSPK, VRBSIZ + 1, "ACTSPK");
601 write_hints(c_file, header_file, HINTS, HNTSIZ + 1, 5, "HINTS");
606 FILE* database = fopen("adventure.text", "r");
607 read_database(database);
610 FILE* c_file = fopen("database.c", "w");
611 FILE* header_file = fopen("database.h", "w");
612 write_files(c_file, header_file);
616 return(EXIT_SUCCESS);