17 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};
18 /* Rendered from the now-gone MPINIT() function */
19 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};
21 // Global variables for use in functions below that can gradually disappear as code is cleaned up
24 char INLINE[LINESIZE+1];
28 // Storage for what comes out of the database
36 long RTEXT[RTXSIZ + 1];
37 long CTEXT[CLSMAX + 1];
40 long STEXT[LOCSIZ + 1];
41 long LTEXT[LOCSIZ + 1];
42 long COND[LOCSIZ + 1];
44 long LOCSND[LOCSIZ + 1];
45 long LINES[LINSIZ + 1];
46 long CVAL[CLSMAX + 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];
54 long ACTSPK[VRBSIZ + 1];
55 long HINTS[HNTSIZ + 1][5];
57 bool is_set(long, long);
58 long GETTXT(long, long, long);
62 int read_database(FILE*);
63 void read_messages(FILE*, long);
64 void read_section3_stuff(FILE*);
65 void read_vocabulary(FILE*);
66 void read_initial_locations(FILE*);
67 void read_action_verb_message_nr(FILE*);
68 void read_conditions(FILE*);
69 void read_hints(FILE*);
70 void read_sound_text(FILE*);
71 void write_0d(FILE*, FILE*, long, char*);
72 void write_1d(FILE*, FILE*, long[], long, char*);
73 void write_hints(FILE*, FILE*, long[][5], long, long, char*);
74 void write_files(FILE*, FILE*);
76 bool is_set(long var, long position)
78 long mask = 1l << position;
79 bool result = (var & mask) == mask;
83 long GETTXT(long SKIP,long ONEWRD, long UPPER) {
84 /* Take characters from an input line and pack them into 30-bit words.
85 * Skip says to skip leading blanks. ONEWRD says stop if we come to a
86 * blank. UPPER says to map all letters to uppercase. If we reach the
87 * end of the line, the word is filled up with blanks (which encode as 0's).
88 * If we're already at end of line when GETTXT is called, we return -1. */
91 static long SPLITTING = -1;
93 if(LNPOSN != SPLITTING)
99 if((!SKIP) || INLINE[LNPOSN] != 0)
105 for (int I=1; I<=5; I++) {
107 if(LNPOSN > LNLENG || (ONEWRD && INLINE[LNPOSN] == 0))
109 char current=INLINE[LNPOSN];
112 if(UPPER && current >= 37)
118 if(SPLITTING != LNPOSN) {
124 TEXT=TEXT+current-63;
134 /* The following conditions are currently considered fatal bugs. Numbers < 20
135 * are detected while reading the database; the others occur at "run time".
136 * 0 Message line > 70 characters
137 * 1 Null line in message
138 * 2 Too many words of messages
139 * 3 Too many travel options
140 * 4 Too many vocabulary words
141 * 5 Required vocabulary word not found
142 * 6 Too many RTEXT messages
144 * 8 Location has cond bit being set twice
145 * 9 Invalid section number in database
146 * 10 Too many locations
147 * 11 Too many class or turn messages
148 * 20 Special travel (500>L>300) exceeds goto list
149 * 21 Ran off end of vocabulary table
150 * 22 Vocabulary type (N/1000) not between 0 and 3
151 * 23 Intransitive action verb exceeds goto list
152 * 24 Transitive action verb exceeds goto list
153 * 25 Conditional travel entry with no alternative
154 * 26 Location has no travel entries
155 * 27 Hint number exceeds goto list
156 * 28 Invalid month returned by date function
157 * 29 Too many parameters given to SETPRM */
159 fprintf(stderr, "Fatal error %ld. See source code for interpretation.\n", NUM);
163 void MAPLIN(FILE *OPENED) {
164 /* Read a line of input, from the specified input source,
165 * translate the chars to integers in the range 0-126 and store
166 * them in the common array "INLINE". Integer values are as follows:
167 * 0 = space [ASCII CODE 40 octal, 32 decimal]
168 * 1-2 = !" [ASCII 41-42 octal, 33-34 decimal]
169 * 3-10 = '()*+,-. [ASCII 47-56 octal, 39-46 decimal]
170 * 11-36 = upper-case letters
171 * 37-62 = lower-case letters
172 * 63 = percent (%) [ASCII 45 octal, 37 decimal]
173 * 64-73 = digits, 0 through 9
174 * Remaining characters can be translated any way that is convenient;
175 * The "TYPE" routine below is used to map them back to characters when
176 * necessary. The above mappings are required so that certain special
177 * characters are known to fit in 6 bits and/or can be easily spotted.
178 * Array elements beyond the end of the line should be filled with 0,
179 * and LNLENG should be set to the index of the last character.
181 * If the data file uses a character other than space (e.g., tab) to
182 * separate numbers, that character should also translate to 0.
184 * This procedure may use the map1,map2 arrays to maintain static data for
185 * the mapping. MAP2(1) is set to 0 when the program starts
186 * and is not changed thereafter unless the routines on this page choose
190 fgets(INLINE + 1, sizeof(INLINE) - 1, OPENED);
192 while (!feof(OPENED) && INLINE[1] == '#');
195 for (size_t i = 1; i <= sizeof(INLINE) && INLINE[i] != 0; ++i)
197 char val = INLINE[i] + 1;
198 INLINE[i] = ascii_to_advent[(unsigned)val];
205 long GETNUM(FILE *source) {
206 /* Obtain the next integer from an input line. If K>0, we first read a
207 * new input line from a file; if K<0, we read a line from the keyboard;
208 * if K=0 we use a line that has already been read (and perhaps partially
209 * scanned). If we're at the end of the line or encounter an illegal
210 * character (not a digit, hyphen, or blank), we return 0. */
212 long DIGIT, GETNUM, SIGN;
214 if(source != NULL) MAPLIN(source);
217 while (INLINE[LNPOSN] == 0) {
218 if (LNPOSN > LNLENG) return(GETNUM);
222 if(INLINE[LNPOSN] != 9)
231 while (!(LNPOSN > LNLENG || INLINE[LNPOSN] == 0))
233 DIGIT=INLINE[LNPOSN]-64;
234 if(DIGIT < 0 || DIGIT > 9)
239 GETNUM=GETNUM*10+DIGIT;
248 int read_database(FILE* database) {
250 /* Clear out the various text-pointer arrays. All text is stored in array
251 * lines; each line is preceded by a word pointing to the next pointer (i.e.
252 * the word following the end of the line). The pointer is negative if this is
253 * first line of a message. The text-pointer arrays contain indices of
254 * pointer-words in lines. STEXT(N) is short description of location N.
255 * LTEXT(N) is long description. PTEXT(N) points to message for PROP(N)=0.
256 * Successive prop messages are found by chasing pointers. RTEXT contains
257 * section 6's stuff. CTEXT(N) points to a player-class message. TTEXT is for
258 * section 14. We also clear COND (see description of section 9 for details). */
260 for (int I=1; I<=300; I++) {
261 if(I <= 100) PTEXT[I] = 0;
262 if(I <= RTXSIZ) RTEXT[I] = 0;
263 if(I <= CLSMAX) CTEXT[I] = 0;
264 if(I <= 100) OBJSND[I] = 0;
265 if(I <= 100) OBJTXT[I] = 0;
266 if(I > LOCSIZ) break;
279 /* Start new data section. Sect is the section number. */
283 long SECT=GETNUM(database);
288 case 1: read_messages(database, SECT); break;
289 case 2: read_messages(database, SECT); break;
290 case 3: read_section3_stuff(database); break;
291 case 4: read_vocabulary(database); break;
292 case 5: read_messages(database, SECT); break;
293 case 6: read_messages(database, SECT); break;
294 case 7: read_initial_locations(database); break;
295 case 8: read_action_verb_message_nr(database); break;
296 case 9: read_conditions(database); break;
297 case 10: read_messages(database, SECT); break;
298 case 11: read_hints(database); break;
300 case 13: read_sound_text(database); break;
301 case 14: read_messages(database, SECT); break;
308 /* Sections 1, 2, 5, 6, 10, 14. Read messages and set up pointers. */
309 void read_messages(FILE* database, long SECT)
316 LOC=GETNUM(database);
317 if(LNLENG >= LNPOSN+70)BUG(0);
318 if(LOC == -1) return;
319 if(LNLENG < LNPOSN)BUG(1);
322 if(KK >= LINSIZ)BUG(2);
323 LINES[KK]=GETTXT(false,false,false);
325 while(LINES[KK] != -1);
327 if(LOC == OLDLOC) continue;
333 if(TRNVLS > TRNSIZ)BUG(11);
334 TTEXT[TRNVLS]=LINUSE;
341 if(CLSSES > CLSMAX)BUG(11);
342 CTEXT[CLSSES]=LINUSE;
348 if(LOC > RTXSIZ)BUG(6);
354 if(LOC > 0 && LOC <= 100)PTEXT[LOC]=LINUSE;
357 if(LOC > LOCSIZ)BUG(10);
369 /* The stuff for section 3 is encoded here. Each "from-location" gets a
370 * contiguous section of the "TRAVEL" array. Each entry in travel is
371 * NEWLOC*1000 + KEYWORD (from section 4, motion verbs), and is negated if
372 * this is the last entry for this location. KEY(N) is the index in travel
373 * of the first option at location N. */
374 void read_section3_stuff(FILE* database)
377 while((LOC=GETNUM(database)) != -1)
379 long NEWLOC=GETNUM(NULL);
387 TRAVEL[TRVS-1]= -TRAVEL[TRVS-1];
389 while((L=GETNUM(NULL)) != 0)
391 TRAVEL[TRVS]=NEWLOC*1000+L;
393 if(TRVS == TRVSIZ)BUG(3);
395 TRAVEL[TRVS-1]= -TRAVEL[TRVS-1];
400 /* Here we read in the vocabulary. KTAB(N) is the word number, ATAB(N) is
401 * the corresponding word. The -1 at the end of section 4 is left in KTAB
402 * as an end-marker. */
403 void read_vocabulary(FILE* database)
405 for (TABNDX=1; TABNDX<=TABSIZ; TABNDX++)
407 KTAB[TABNDX]=GETNUM(database);
408 if(KTAB[TABNDX] == -1) return;
409 ATAB[TABNDX]=GETTXT(true,true,true);
415 /* Read in the initial locations for each object. Also the immovability info.
416 * plac contains initial locations of objects. FIXD is -1 for immovable
417 * objects (including the snake), or = second loc for two-placed objects. */
418 void read_initial_locations(FILE* database)
421 while((OBJ=GETNUM(database)) != -1)
423 PLAC[OBJ]=GETNUM(NULL);
424 FIXD[OBJ]=GETNUM(NULL);
429 /* Read default message numbers for action verbs, store in ACTSPK. */
430 void read_action_verb_message_nr(FILE* database)
433 while((VERB=GETNUM(database)) != -1)
435 ACTSPK[VERB]=GETNUM(NULL);
440 /* Read info about available liquids and other conditions, store in COND. */
441 void read_conditions(FILE* database)
444 while((K=GETNUM(database)) != -1)
447 while((LOC=GETNUM(NULL)) != 0)
449 if(is_set(COND[LOC],K)) BUG(8);
450 COND[LOC]=COND[LOC] + (1l << K);
456 /* Read data for hints. */
457 void read_hints(FILE* database)
461 while((K=GETNUM(database)) != -1)
463 if(K <= 0 || K > HNTSIZ)BUG(7);
464 for (int I=1; I<=4; I++)
466 HINTS[K][I] =GETNUM(NULL);
468 HNTMAX=(HNTMAX>K ? HNTMAX : K);
473 /* Read the sound/text info, store in OBJSND, OBJTXT, LOCSND. */
474 void read_sound_text(FILE* database)
477 while((K=GETNUM(database)) != -1)
479 long KK=GETNUM(NULL);
483 OBJSND[K]=(KK>0 ? KK : 0);
484 OBJTXT[K]=(I>0 ? I : 0);
492 /* Finish constructing internal data format */
494 /* Having read in the database, certain things are now constructed. PROPS are
495 * set to zero. We finish setting up COND by checking for forced-motion travel
496 * entries. The PLAC and FIXD arrays are used to set up ATLOC(N) as the first
497 * object at location N, and LINK(OBJ) as the next object at the same location
498 * as OBJ. (OBJ>100 indicates that FIXED(OBJ-100)=LOC; LINK(OBJ) is still the
499 * correct link to use.) ABB is zeroed; it controls whether the abbreviated
500 * description is printed. Counts modulo 5 unless "LOOK" is used. */
502 void write_0d(FILE* c_file, FILE* header_file, long single, char* varname)
504 fprintf(c_file, "long %s = %ld;\n", varname, single);
505 fprintf(header_file, "extern long %s;\n", varname);
508 void write_1d(FILE* c_file, FILE* header_file, long array[], long dim, char* varname)
510 fprintf(c_file, "long %s[] = {\n", varname);
511 for (int i = 0; i < dim; ++i)
516 fprintf(c_file, "\n");
517 fprintf(c_file, " ");
519 fprintf(c_file, "%ld, ", array[i]);
521 fprintf(c_file, "\n};\n");
522 fprintf(header_file, "extern long %s[%ld];\n", varname, dim);
525 void write_hints(FILE* c_file, FILE* header_file, long matrix[][5], long dim1, long dim2, char* varname)
527 fprintf(c_file, "long %s[][%ld] = {\n", varname, dim2);
528 for (int i = 0; i < dim1; ++i)
530 fprintf(c_file, " {");
531 for (int j = 0; j < dim2; ++j)
533 fprintf(c_file, "%ld, ", matrix[i][j]);
535 fprintf(c_file, "},\n");
537 fprintf(c_file, "};\n");
538 fprintf(header_file, "extern long %s[%ld][%ld];\n", varname, dim1, dim2);
541 void write_files(FILE* c_file, FILE* header_file)
543 // preprocessor defines for the header
544 fprintf(header_file, "#define RTXSIZ 277\n");
545 fprintf(header_file, "#define CLSMAX 12\n");
546 fprintf(header_file, "#define LOCSIZ 185\n");
547 fprintf(header_file, "#define LINSIZ 12500\n");
548 fprintf(header_file, "#define TRNSIZ 5\n");
549 fprintf(header_file, "#define TABSIZ 330\n");
550 fprintf(header_file, "#define VRBSIZ 35\n");
551 fprintf(header_file, "#define HNTSIZ 20\n");
552 fprintf(header_file, "#define TRVSIZ 885\n");
553 fprintf(header_file, "\n");
555 // include the header in the C file
556 fprintf(c_file, "#include \"database.h\"\n");
557 fprintf(c_file, "\n");
560 write_0d(c_file, header_file, LINUSE, "LINUSE");
561 write_0d(c_file, header_file, TRVS, "TRVS");
562 write_0d(c_file, header_file, CLSSES, "CLSSES");
563 write_0d(c_file, header_file, TRNVLS, "TRNVLS");
564 write_0d(c_file, header_file, TABNDX, "TABNDX");
565 write_0d(c_file, header_file, HNTMAX, "HNTMAX");
566 write_1d(c_file, header_file, PTEXT, 100 + 1, "PTEXT");
567 write_1d(c_file, header_file, RTEXT, RTXSIZ + 1, "RTEXT");
568 write_1d(c_file, header_file, CTEXT, CLSMAX + 1, "CTEXT");
569 write_1d(c_file, header_file, OBJSND, 100 + 1, "OBJSND");
570 write_1d(c_file, header_file, OBJTXT, 100 + 1, "OBJTXT");
571 write_1d(c_file, header_file, STEXT, LOCSIZ + 1, "STEXT");
572 write_1d(c_file, header_file, LTEXT, LOCSIZ + 1, "LTEXT");
573 write_1d(c_file, header_file, COND, LOCSIZ + 1, "COND");
574 write_1d(c_file, header_file, KEY, LOCSIZ + 1, "KEY");
575 write_1d(c_file, header_file, LOCSND, LOCSIZ + 1, "LOCSND");
576 write_1d(c_file, header_file, LINES, LINSIZ + 1, "LINES");
577 write_1d(c_file, header_file, CVAL, CLSMAX + 1, "CVAL");
578 write_1d(c_file, header_file, TTEXT, TRNSIZ + 1, "TTEXT");
579 write_1d(c_file, header_file, TRNVAL, TRNSIZ + 1, "TRNVAL");
580 write_1d(c_file, header_file, TRAVEL, TRVSIZ + 1, "TRAVEL");
581 write_1d(c_file, header_file, KTAB, TABSIZ + 1, "KTAB");
582 write_1d(c_file, header_file, ATAB, TABSIZ + 1, "ATAB");
583 write_1d(c_file, header_file, PLAC, 100 + 1, "PLAC");
584 write_1d(c_file, header_file, FIXD, 100 + 1, "FIXD");
585 write_1d(c_file, header_file, ACTSPK, VRBSIZ + 1, "ACTSPK");
586 write_hints(c_file, header_file, HINTS, HNTSIZ + 1, 5, "HINTS");
591 FILE* database = fopen("adventure.text", "r");
592 read_database(database);
595 FILE* c_file = fopen("database.c", "w");
596 FILE* header_file = fopen("database.h", "w");
597 write_files(c_file, header_file);
601 return(EXIT_SUCCESS);