1 /* NetHack 3.6 rumors.c $NHDT-Date: 1446713640 2015/11/05 08:54:00 $ $NHDT-Branch: master $:$NHDT-Revision: 1.27 $ */
2 /* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985. */
3 /* NetHack may be freely redistributed. See license for details. */
5 /* JNetHack Copyright */
6 /* (c) Issei Numata, Naoki Hamada, Shigehiro Miyashita, 1994-2000 */
7 /* For 3.4-, Copyright (c) SHIRAKATA Kentaro, 2002-2016 */
8 /* JNetHack may be freely redistributed. See license for details. */
14 /* [note: this comment is fairly old, but still accurate for 3.1]
15 * Rumors have been entirely rewritten to speed up the access. This is
16 * essential when working from floppies. Using fseek() the way that's done
17 * here means rumors following longer rumors are output more often than those
18 * following shorter rumors. Also, you may see the same rumor more than once
19 * in a particular game (although the odds are highly against it), but
20 * this also happens with real fortune cookies. -dgk
24 * The rumors file consists of a "do not edit" line, then a line containing
25 * three sets of three counts (first two in decimal, third in hexadecimal).
26 * The first set has the number of true rumors, the count in bytes for all
27 * true rumors, and the file offset to the first one. The second set has
28 * the same group of numbers for the false rumors. The third set has 0 for
29 * count, 0 for size, and the file offset for end-of-file. The offset of
30 * the first true rumor plus the size of the true rumors matches the offset
31 * of the first false rumor. Likewise, the offset of the first false rumor
32 * plus the size of the false rumors matches the offset for end-of-file.
35 /* 3.1 [now obsolete for rumors but still accurate for oracles]
36 * The rumors file consists of a "do not edit" line, a hexadecimal number
37 * giving the number of bytes of useful/true rumors, followed by those
38 * true rumors (one per line), followed by the useless/false/misleading/cute
39 * rumors (also one per line). Number of bytes of untrue rumors is derived
40 * via fseek(EOF)+ftell().
42 * The oracles file consists of a "do not edit" comment, a decimal count N
43 * and set of N+1 hexadecimal fseek offsets, followed by N multiple-line
44 * records, separated by "---" lines. The first oracle is a special case,
45 * and placed there by 'makedefs'.
48 STATIC_DCL void FDECL(init_rumors, (dlb *));
49 STATIC_DCL void FDECL(init_oracles, (dlb *));
51 /* rumor size variables are signed so that value -1 can be used as a flag */
52 static long true_rumor_size = 0L, false_rumor_size;
53 /* rumor start offsets are unsigned because they're handled via %lx format */
54 static unsigned long true_rumor_start, false_rumor_start;
55 /* rumor end offsets are signed because they're compared with [dlb_]ftell() */
56 static long true_rumor_end, false_rumor_end;
57 /* oracles are handled differently from rumors... */
58 static int oracle_flg = 0; /* -1=>don't use, 0=>need init, 1=>init done */
59 static unsigned oracle_cnt = 0;
60 static unsigned long *oracle_loc = 0;
66 static const char rumors_header[] = "%d,%ld,%lx;%d,%ld,%lx;0,0,%lx\n";
67 int true_count, false_count; /* in file but not used here */
68 unsigned long eof_offset;
71 (void) dlb_fgets(line, sizeof line, fp); /* skip "don't edit" comment */
72 (void) dlb_fgets(line, sizeof line, fp);
73 if (sscanf(line, rumors_header, &true_count, &true_rumor_size,
74 &true_rumor_start, &false_count, &false_rumor_size,
75 &false_rumor_start, &eof_offset) == 7
76 && true_rumor_size > 0L
77 && false_rumor_size > 0L) {
78 true_rumor_end = (long) true_rumor_start + true_rumor_size;
79 /* assert( true_rumor_end == false_rumor_start ); */
80 false_rumor_end = (long) false_rumor_start + false_rumor_size;
81 /* assert( false_rumor_end == eof_offset ); */
83 true_rumor_size = -1L; /* init failed */
84 (void) dlb_fclose(fp);
88 /* exclude_cookie is a hack used because we sometimes want to get rumors in a
89 * context where messages such as "You swallowed the fortune!" that refer to
90 * cookies should not appear. This has no effect for true rumors since none
91 * of them contain such references anyway.
94 getrumor(truth, rumor_buf, exclude_cookie)
95 int truth; /* 1=true, -1=false, 0=either */
97 boolean exclude_cookie;
100 long tidbit, beginning;
101 char *endp, line[BUFSZ], xbuf[BUFSZ];
104 if (true_rumor_size < 0L) /* we couldn't open RUMORFILE */
107 rumors = dlb_fopen(RUMORFILE, "r");
115 if (true_rumor_size == 0L) { /* if this is 1st outrumor() */
117 if (true_rumor_size < 0L) { /* init failed */
118 Sprintf(rumor_buf, "Error reading \"%.80s\".", RUMORFILE);
124 * rn2 \ +1 2=T 1=T 0=F
125 * adj./ +0 1=T 0=F -1=F
127 switch (adjtruth = truth + rn2(2)) {
128 case 2: /*(might let a bogus input arg sneak thru)*/
130 beginning = (long) true_rumor_start;
131 tidbit = Rand() % true_rumor_size;
133 case 0: /* once here, 0 => false rather than "either"*/
135 beginning = (long) false_rumor_start;
136 tidbit = Rand() % false_rumor_size;
139 impossible("strange truth value for rumor");
140 return strcpy(rumor_buf, "Oops...");
142 (void) dlb_fseek(rumors, beginning + tidbit, SEEK_SET);
143 (void) dlb_fgets(line, sizeof line, rumors);
144 if (!dlb_fgets(line, sizeof line, rumors)
145 || (adjtruth > 0 && dlb_ftell(rumors) > true_rumor_end)) {
146 /* reached end of rumors -- go back to beginning */
147 (void) dlb_fseek(rumors, beginning, SEEK_SET);
148 (void) dlb_fgets(line, sizeof line, rumors);
150 if ((endp = index(line, '\n')) != 0)
152 Strcat(rumor_buf, xcrypt(line, xbuf));
154 count++ < 50 && exclude_cookie
156 && (strstri(rumor_buf, "fortune") || strstri(rumor_buf, "pity")));
158 && (strstri(rumor_buf, "
\90è") || strstri(rumor_buf, "
\82È
\82ñ
\82Ä
\82±
\82Æ
\82¾")));
160 (void) dlb_fclose(rumors);
162 impossible("Can't find non-cookie rumor?");
163 else if (!in_mklev) /* avoid exercizing wisdom for graffiti */
164 exercise(A_WIS, (adjtruth > 0));
167 pline("Can't open rumors file!");
169 pline("rumors
\83t
\83@
\83C
\83\8b\82ª
\8aJ
\82¯
\82È
\82¢
\81I");
170 true_rumor_size = -1; /* don't try to open it again */
172 /* this is safe either way, so do it always since we can't get the definition
175 #define PAD_RUMORS_TO
179 char *x = eos(rumor_buf) - 1;
181 while (x > rumor_buf && *x == '_')
191 * test that the true/false rumor boundaries are valid.
198 char *endp, line[BUFSZ], xbuf[BUFSZ], rumor_buf[BUFSZ];
200 if (true_rumor_size < 0L) { /* we couldn't open RUMORFILE */
202 pline("rumors not accessible.");
206 rumors = dlb_fopen(RUMORFILE, "r");
209 long ftell_rumor_start = 0L;
212 if (true_rumor_size == 0L) { /* if this is 1st outrumor() */
214 if (true_rumor_size < 0L)
215 goto no_rumors; /* init failed */
217 tmpwin = create_nhwindow(NHW_TEXT);
225 "T start=%06ld (%06lx), end=%06ld (%06lx), size=%06ld (%06lx)",
226 (long) true_rumor_start, true_rumor_start, true_rumor_end,
227 (unsigned long) true_rumor_end, true_rumor_size,
228 (unsigned long) true_rumor_size);
229 putstr(tmpwin, 0, rumor_buf);
233 "F start=%06ld (%06lx), end=%06ld (%06lx), size=%06ld (%06lx)",
234 (long) false_rumor_start, false_rumor_start, false_rumor_end,
235 (unsigned long) false_rumor_end, false_rumor_size,
236 (unsigned long) false_rumor_size);
237 putstr(tmpwin, 0, rumor_buf);
240 * check the first rumor (start of true rumors) by
241 * skipping the first two lines.
243 * Then seek to the start of the false rumors (based on
244 * the value read in rumors, and display it.
247 (void) dlb_fseek(rumors, (long) true_rumor_start, SEEK_SET);
248 ftell_rumor_start = dlb_ftell(rumors);
249 (void) dlb_fgets(line, sizeof line, rumors);
250 if ((endp = index(line, '\n')) != 0)
252 Sprintf(rumor_buf, "T %06ld %s", ftell_rumor_start,
254 putstr(tmpwin, 0, rumor_buf);
255 /* find last true rumor */
256 while (dlb_fgets(line, sizeof line, rumors)
257 && dlb_ftell(rumors) < true_rumor_end)
259 if ((endp = index(line, '\n')) != 0)
261 Sprintf(rumor_buf, " %6s %s", "", xcrypt(line, xbuf));
262 putstr(tmpwin, 0, rumor_buf);
265 (void) dlb_fseek(rumors, (long) false_rumor_start, SEEK_SET);
266 ftell_rumor_start = dlb_ftell(rumors);
267 (void) dlb_fgets(line, sizeof line, rumors);
268 if ((endp = index(line, '\n')) != 0)
270 Sprintf(rumor_buf, "F %06ld %s", ftell_rumor_start,
272 putstr(tmpwin, 0, rumor_buf);
273 /* find last false rumor */
274 while (dlb_fgets(line, sizeof line, rumors)
275 && dlb_ftell(rumors) < false_rumor_end)
277 if ((endp = index(line, '\n')) != 0)
279 Sprintf(rumor_buf, " %6s %s", "", xcrypt(line, xbuf));
280 putstr(tmpwin, 0, rumor_buf);
282 (void) dlb_fclose(rumors);
283 display_nhwindow(tmpwin, TRUE);
284 destroy_nhwindow(tmpwin);
286 impossible("Can't open rumors file!");
287 true_rumor_size = -1; /* don't try to open it again */
291 /* Gets a random line of text from file 'fname', and returns it. */
293 get_rnd_text(fname, buf)
301 fh = dlb_fopen(fname, "r");
304 /* TODO: cache sizetxt, starttxt, endtxt. maybe cache file contents?
306 long sizetxt = 0, starttxt = 0, endtxt = 0, tidbit = 0;
307 char *endp, line[BUFSZ], xbuf[BUFSZ];
308 (void) dlb_fgets(line, sizeof line,
309 fh); /* skip "don't edit" comment */
311 (void) dlb_fseek(fh, 0L, SEEK_CUR);
312 starttxt = dlb_ftell(fh);
313 (void) dlb_fseek(fh, 0L, SEEK_END);
314 endtxt = dlb_ftell(fh);
315 sizetxt = endtxt - starttxt;
316 tidbit = Rand() % sizetxt;
318 (void) dlb_fseek(fh, starttxt + tidbit, SEEK_SET);
319 (void) dlb_fgets(line, sizeof line, fh);
320 if (!dlb_fgets(line, sizeof line, fh)) {
321 (void) dlb_fseek(fh, starttxt, SEEK_SET);
322 (void) dlb_fgets(line, sizeof line, fh);
324 if ((endp = index(line, '\n')) != 0)
326 Strcat(buf, xcrypt(line, xbuf));
327 (void) dlb_fclose(fh);
329 impossible("Can't open file %s!", fname);
334 outrumor(truth, mechanism)
335 int truth; /* 1=true, -1=false, 0=either */
338 static const char fortune_msg[] =
340 "This cookie has a scrap of paper inside.";
342 "
\82±
\82Ì
\83N
\83b
\83L
\81[
\82É
\82Í
\8e\86\90Ø
\82ª
\93ü
\82Á
\82Ä
\82¢
\82é
\81D";
345 boolean reading = (mechanism == BY_COOKIE || mechanism == BY_PAPER);
348 /* deal with various things that prevent reading */
349 if (is_fainted() && mechanism == BY_COOKIE)
352 if (mechanism == BY_COOKIE)
355 pline("What a pity that you cannot read it!");
357 pline("
\82»
\82ê
\82ð
\93Ç
\82ß
\82È
\82¢
\82È
\82ñ
\82Ä
\8bC
\82Ì
\93Å
\82È
\81I");
361 line = getrumor(truth, buf, reading ? FALSE : TRUE);
364 line = "NetHack rumors file closed for renovation.";
366 line = "
\89\
\82Ì
\90^
\91\8a\82Í
\8dü
\90V
\82Ì
\82½
\82ß
\8bx
\8a§
\82µ
\82Ä
\82¢
\82é
\81D";
369 /* Oracle delivers the rumor */
371 pline("True to her word, the Oracle %ssays: ",
372 (!rn2(4) ? "offhandedly "
373 : (!rn2(3) ? "casually "
374 : (rn2(2) ? "nonchalantly " : ""))));
376 pline("
\96ñ
\91©
\82Ç
\82¨
\82è
\82É
\81C
\8c«
\8eÒ
\82Í%s
\8fq
\82×
\82½:",
377 (!rn2(4) ? "
\96³
\91¢
\8dì
\82É"
378 : (!rn2(3) ? "
\89½
\8bC
\82È
\82"
379 : (rn2(2) ? "
\96³
\93Ú
\92\85\82É" : ""))));
382 /* [WIS exercized by getrumor()] */
391 pline("
\82»
\82ê
\82ð
\93Ç
\82ñ
\82¾:");
405 /* this assumes we're only called once */
406 (void) dlb_fgets(line, sizeof line, fp); /* skip "don't edit" comment*/
407 (void) dlb_fgets(line, sizeof line, fp);
408 if (sscanf(line, "%5d\n", &cnt) == 1 && cnt > 0) {
409 oracle_cnt = (unsigned) cnt;
410 oracle_loc = (unsigned long *) alloc((unsigned) cnt * sizeof(long));
411 for (i = 0; i < cnt; i++) {
412 (void) dlb_fgets(line, sizeof line, fp);
413 (void) sscanf(line, "%5lx\n", &oracle_loc[i]);
420 save_oracles(fd, mode)
423 if (perform_bwrite(mode)) {
424 bwrite(fd, (genericptr_t) &oracle_cnt, sizeof oracle_cnt);
426 bwrite(fd, (genericptr_t) oracle_loc, oracle_cnt * sizeof(long));
428 if (release_data(mode)) {
430 free((genericptr_t) oracle_loc);
431 oracle_loc = 0, oracle_cnt = 0, oracle_flg = 0;
440 mread(fd, (genericptr_t) &oracle_cnt, sizeof oracle_cnt);
442 oracle_loc = (unsigned long *) alloc(oracle_cnt * sizeof(long));
443 mread(fd, (genericptr_t) oracle_loc, oracle_cnt * sizeof(long));
444 oracle_flg = 1; /* no need to call init_oracles() */
449 outoracle(special, delphi)
459 /* early return if we couldn't open ORACLEFILE on previous attempt,
460 or if all the oracularities are already exhausted */
461 if (oracle_flg < 0 || (oracle_flg > 0 && oracle_cnt == 0))
464 oracles = dlb_fopen(ORACLEFILE, "r");
468 if (oracle_flg == 0) { /* if this is the first outoracle() */
469 init_oracles(oracles);
474 /* oracle_loc[0] is the special oracle;
475 oracle_loc[1..oracle_cnt-1] are normal ones */
476 if (oracle_cnt <= 1 && !special)
477 return; /*(shouldn't happen)*/
478 oracle_idx = special ? 0 : rnd((int) oracle_cnt - 1);
479 (void) dlb_fseek(oracles, (long) oracle_loc[oracle_idx], SEEK_SET);
480 if (!special) /* move offset of very last one into this slot */
481 oracle_loc[oracle_idx] = oracle_loc[--oracle_cnt];
483 tmpwin = create_nhwindow(NHW_TEXT);
488 ? "The Oracle scornfully takes all your money and says:"
490 ? "
\8c«
\8eÒ
\82Í
\8cy
\95Ì
\82µ
\82½
\82æ
\82¤
\82É
\82 \82È
\82½
\82Ì
\91S
\82Ä
\82Ì
\82¨
\8bà
\82ð
\8eó
\82¯
\82Æ
\82è
\81C
\8fq
\82×
\82½
\81F"
492 : "The Oracle meditates for a moment and then intones:");
494 : "
\8c«
\8eÒ
\82Í
\82µ
\82Î
\82ç
\82
\96»
\91z
\82µ
\81C
\89Ì
\82¤
\82æ
\82¤
\82É
\98b
\82µ
\82½
\81F");
497 putstr(tmpwin, 0, "The message reads:");
499 putstr(tmpwin, 0, "
\83\81\83b
\83Z
\81[
\83W:");
500 putstr(tmpwin, 0, "");
502 while (dlb_fgets(line, COLNO, oracles) && strcmp(line, "---\n")) {
503 if ((endp = index(line, '\n')) != 0)
505 putstr(tmpwin, 0, xcrypt(line, xbuf));
507 display_nhwindow(tmpwin, TRUE);
508 destroy_nhwindow(tmpwin);
509 (void) dlb_fclose(oracles);
512 pline("Can't open oracles file!");
514 pline("oracles
\83t
\83@
\83C
\83\8b\82ð
\8aJ
\82¯
\82È
\82¢
\81I");
515 oracle_flg = -1; /* don't try to open it again */
524 int u_pay, minor_cost = 50, major_cost = 500 + 50 * u.ulevel;
529 umoney = money_cnt(invent);
533 There("is no one here to consult.");
535 pline("
\82±
\82±
\82É
\82Í
\90_
\91õ
\82ð
\8fq
\82×
\82é
\90l
\82Í
\82¢
\82È
\82¢
\81D");
537 } else if (!oracl->mpeaceful) {
539 pline("%s is in no mood for consultations.", Monnam(oracl));
541 pline("
\8c«
\8eÒ
\82Í
\90_
\91õ
\82ð
\8d\90\82°
\82Ä
\82
\82ê
\82é
\95µ
\88Í
\8bC
\82Å
\82Í
\82È
\82¢
\81D");
543 } else if (!umoney) {
545 You("have no money.");
547 You("
\82¨
\8bà
\82ª
\82È
\82¢
\81D");
552 Sprintf(qbuf, "\"Wilt thou settle for a minor consultation?\" (%d %s)",
554 Sprintf(qbuf, "
\81u
\93ð
\81C
\92á
\88Ê
\82Ì
\90_
\91õ
\82ð
\8eó
\82¯
\82é
\82©
\81H
\81v(%d%s)",
555 minor_cost, currency((long) minor_cost));
561 if (umoney < (long) minor_cost) {
563 You("don't even have enough money for that!");
565 You("
\82±
\82ê
\82É
\95¥
\82¦
\82é
\82¾
\82¯
\82Ì
\82¨
\8bà
\82·
\82ç
\8e\9d\82Á
\82Ä
\82¢
\82È
\82¢
\81I");
571 if (umoney <= (long) minor_cost /* don't even ask */
572 || (oracle_cnt == 1 || oracle_flg < 0))
575 Sprintf(qbuf, "\"Then dost thou desire a major one?\" (%d %s)",
577 Sprintf(qbuf, "
\81u
\82È
\82ç
\82Î
\93ð
\81C
\8d\82\88Ê
\82Ì
\90_
\91õ
\82ð
\8eó
\82¯
\82é
\82©
\81H
\81v(%d%s)",
578 major_cost, currency((long) major_cost));
581 u_pay = (umoney < (long) major_cost) ? (int) umoney : major_cost;
584 money2mon(oracl, (long) u_pay);
586 add_xpts = 0; /* first oracle of each type gives experience points */
587 if (u_pay == minor_cost) {
588 outrumor(1, BY_ORACLE);
589 if (!u.uevent.minor_oracle)
590 add_xpts = u_pay / (u.uevent.major_oracle ? 25 : 10);
591 /* 5 pts if very 1st, or 2 pts if major already done */
592 u.uevent.minor_oracle = TRUE;
594 boolean cheapskate = u_pay < major_cost;
596 outoracle(cheapskate, TRUE);
597 if (!cheapskate && !u.uevent.major_oracle)
598 add_xpts = u_pay / (u.uevent.minor_oracle ? 25 : 10);
599 /* ~100 pts if very 1st, ~40 pts if minor already done */
600 u.uevent.major_oracle = TRUE;
601 exercise(A_WIS, !cheapskate);
604 more_experienced(add_xpts, u_pay / 50);