src/pline.c

   1 /* NetHack 3.6  pline.c $NHDT-Date: 1456528597 2016/02/26 23:16:37 $  $NHDT-Branch: NetHack-3.6.0 $:$NHDT-Revision: 1.49 $ */
   2 /* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985. */
   3 /* NetHack may be freely redistributed.  See license for details. */
   4
   5 #define NEED_VARARGS /* Uses ... */ /* comment line for pre-compiled headers \
   6                                        */
   7 #include "hack.h"
   8
   9 static boolean no_repeat = FALSE;
  10 static char prevmsg[BUFSZ];
  11
  12 static char *FDECL(You_buf, (int));
  13 #if defined(MSGHANDLER) && (defined(POSIX_TYPES) || defined(__GNUC__))
  14 static void FDECL(execplinehandler, (const char *));
  15 #endif
  16
  17 /*VARARGS1*/
  18 /* Note that these declarations rely on knowledge of the internals
  19  * of the variable argument handling stuff in "tradstdc.h"
  20  */
  21
  22 #if defined(USE_STDARG) || defined(USE_VARARGS)
  23 static void FDECL(vpline, (const char *, va_list));
  24
  25 void pline
  26 VA_DECL(const char *, line)
  27 {
  28     VA_START(line);
  29     VA_INIT(line, char *);
  30     vpline(line, VA_ARGS);
  31     VA_END();
  32 }
  33
  34 # ifdef USE_STDARG
  35 static void
  36 vpline(const char *line, va_list the_args)
  37 # else
  38 static void
  39 vpline(line, the_args)
  40 const char *line;
  41 va_list the_args;
  42 # endif
  43
  44 #else /* USE_STDARG | USE_VARARG */
  45
  46 # define vpline pline
  47
  48 void pline
  49 VA_DECL(const char *, line)
  50 #endif /* USE_STDARG | USE_VARARG */
  51 {       /* start of vpline() or of nested block in USE_OLDARG's pline() */
  52     char pbuf[3 * BUFSZ];
  53     int ln;
  54     xchar msgtyp;
  55     /* Do NOT use VA_START and VA_END in here... see above */
  56
  57     if (!line || !*line)
  58         return;
  59 #ifdef HANGUPHANDLING
  60     if (program_state.done_hup)
  61         return;
  62 #endif
  63     if (program_state.wizkit_wishing)
  64         return;
  65
  66     if (index(line, '%')) {
  67         Vsprintf(pbuf, line, VA_ARGS);
  68         line = pbuf;
  69     }
  70     if ((ln = (int) strlen(line)) > BUFSZ - 1) {
  71         if (line != pbuf)                          /* no '%' was present */
  72             (void) strncpy(pbuf, line, BUFSZ - 1); /* caveat: unterminated */
  73         /* truncate, preserving the final 3 characters:
  74            "___ extremely long text" -> "___ extremely l...ext"
  75            (this may be suboptimal if overflow is less than 3) */
  76         (void) strncpy(pbuf + BUFSZ - 1 - 6, "...", 3);
  77         /* avoid strncpy; buffers could overlap if excess is small */
  78         pbuf[BUFSZ - 1 - 3] = line[ln - 3];
  79         pbuf[BUFSZ - 1 - 2] = line[ln - 2];
  80         pbuf[BUFSZ - 1 - 1] = line[ln - 1];
  81         pbuf[BUFSZ - 1] = '\0';
  82         line = pbuf;
  83     }
  84     if (!iflags.window_inited) {
  85         raw_print(line);
  86         iflags.last_msg = PLNMSG_UNKNOWN;
  87         return;
  88     }
  89
  90     msgtyp = msgtype_type(line, no_repeat);
  91     if (msgtyp == MSGTYP_NOSHOW
  92         || (msgtyp == MSGTYP_NOREP && !strcmp(line, prevmsg)))
  93         return;
  94     if (vision_full_recalc)
  95         vision_recalc(0);
  96     if (u.ux)
  97         flush_screen(1); /* %% */
  98
  99     putstr(WIN_MESSAGE, 0, line);
 100
 101 #if defined(MSGHANDLER) && (defined(POSIX_TYPES) || defined(__GNUC__))
 102     execplinehandler(line);
 103 #endif
 104
 105     /* this gets cleared after every pline message */
 106     iflags.last_msg = PLNMSG_UNKNOWN;
 107     strncpy(prevmsg, line, BUFSZ), prevmsg[BUFSZ - 1] = '\0';
 108     if (msgtyp == MSGTYP_STOP)
 109         display_nhwindow(WIN_MESSAGE, TRUE); /* --more-- */
 110
 111 #if !(defined(USE_STDARG) || defined(USE_VARARGS))
 112     /* provide closing brace for the nested block
 113        which immediately follows USE_OLDARGS's VA_DECL() */
 114     VA_END();
 115 #endif
 116 }
 117
 118 /*VARARGS1*/
 119 void Norep
 120 VA_DECL(const char *, line)
 121 {
 122     VA_START(line);
 123     VA_INIT(line, const char *);
 124     no_repeat = TRUE;
 125     vpline(line, VA_ARGS);
 126     no_repeat = FALSE;
 127     VA_END();
 128     return;
 129 }
 130
 131 /* work buffer for You(), &c and verbalize() */
 132 static char *you_buf = 0;
 133 static int you_buf_siz = 0;
 134
 135 static char *
 136 You_buf(siz)
 137 int siz;
 138 {
 139     if (siz > you_buf_siz) {
 140         if (you_buf)
 141             free((genericptr_t) you_buf);
 142         you_buf_siz = siz + 10;
 143         you_buf = (char *) alloc((unsigned) you_buf_siz);
 144     }
 145     return you_buf;
 146 }
 147
 148 void
 149 free_youbuf()
 150 {
 151     if (you_buf)
 152         free((genericptr_t) you_buf), you_buf = (char *) 0;
 153     you_buf_siz = 0;
 154 }
 155
 156 /* `prefix' must be a string literal, not a pointer */
 157 #define YouPrefix(pointer, prefix, text) \
 158     Strcpy((pointer = You_buf((int) (strlen(text) + sizeof prefix))), prefix)
 159
 160 #define YouMessage(pointer, prefix, text) \
 161     strcat((YouPrefix(pointer, prefix, text), pointer), text)
 162
 163 /*VARARGS1*/
 164 void You
 165 VA_DECL(const char *, line)
 166 {
 167     char *tmp;
 168     VA_START(line);
 169     VA_INIT(line, const char *);
 170     vpline(YouMessage(tmp, "You ", line), VA_ARGS);
 171     VA_END();
 172 }
 173
 174 /*VARARGS1*/
 175 void Your
 176 VA_DECL(const char *, line)
 177 {
 178     char *tmp;
 179     VA_START(line);
 180     VA_INIT(line, const char *);
 181     vpline(YouMessage(tmp, "Your ", line), VA_ARGS);
 182     VA_END();
 183 }
 184
 185 /*VARARGS1*/
 186 void You_feel
 187 VA_DECL(const char *, line)
 188 {
 189     char *tmp;
 190     VA_START(line);
 191     VA_INIT(line, const char *);
 192     if (Unaware)
 193         YouPrefix(tmp, "You dream that you feel ", line);
 194     else
 195         YouPrefix(tmp, "You feel ", line);
 196     vpline(strcat(tmp, line), VA_ARGS);
 197     VA_END();
 198 }
 199
 200 /*VARARGS1*/
 201 void You_cant
 202 VA_DECL(const char *, line)
 203 {
 204     char *tmp;
 205     VA_START(line);
 206     VA_INIT(line, const char *);
 207     vpline(YouMessage(tmp, "You can't ", line), VA_ARGS);
 208     VA_END();
 209 }
 210
 211 /*VARARGS1*/
 212 void pline_The
 213 VA_DECL(const char *, line)
 214 {
 215     char *tmp;
 216     VA_START(line);
 217     VA_INIT(line, const char *);
 218     vpline(YouMessage(tmp, "The ", line), VA_ARGS);
 219     VA_END();
 220 }
 221
 222 /*VARARGS1*/
 223 void There
 224 VA_DECL(const char *, line)
 225 {
 226     char *tmp;
 227     VA_START(line);
 228     VA_INIT(line, const char *);
 229     vpline(YouMessage(tmp, "There ", line), VA_ARGS);
 230     VA_END();
 231 }
 232
 233 /*VARARGS1*/
 234 void You_hear
 235 VA_DECL(const char *, line)
 236 {
 237     char *tmp;
 238
 239     if (Deaf || !flags.acoustics)
 240         return;
 241     VA_START(line);
 242     VA_INIT(line, const char *);
 243     if (Underwater)
 244         YouPrefix(tmp, "You barely hear ", line);
 245     else if (Unaware)
 246         YouPrefix(tmp, "You dream that you hear ", line);
 247     else
 248         YouPrefix(tmp, "You hear ", line);
 249     vpline(strcat(tmp, line), VA_ARGS);
 250     VA_END();
 251 }
 252
 253 /*VARARGS1*/
 254 void You_see
 255 VA_DECL(const char *, line)
 256 {
 257     char *tmp;
 258
 259     VA_START(line);
 260     VA_INIT(line, const char *);
 261     if (Unaware)
 262         YouPrefix(tmp, "You dream that you see ", line);
 263     else if (Blind) /* caller should have caught this... */
 264         YouPrefix(tmp, "You sense ", line);
 265     else
 266         YouPrefix(tmp, "You see ", line);
 267     vpline(strcat(tmp, line), VA_ARGS);
 268     VA_END();
 269 }
 270
 271 /* Print a message inside double-quotes.
 272  * The caller is responsible for checking deafness.
 273  * Gods can speak directly to you in spite of deafness.
 274  */
 275 /*VARARGS1*/
 276 void verbalize
 277 VA_DECL(const char *, line)
 278 {
 279     char *tmp;
 280
 281     VA_START(line);
 282     VA_INIT(line, const char *);
 283     tmp = You_buf((int) strlen(line) + sizeof "\"\"");
 284     Strcpy(tmp, "\"");
 285     Strcat(tmp, line);
 286     Strcat(tmp, "\"");
 287     vpline(tmp, VA_ARGS);
 288     VA_END();
 289 }
 290
 291 /*VARARGS1*/
 292 /* Note that these declarations rely on knowledge of the internals
 293  * of the variable argument handling stuff in "tradstdc.h"
 294  */
 295
 296 #if defined(USE_STDARG) || defined(USE_VARARGS)
 297 static void FDECL(vraw_printf, (const char *, va_list));
 298
 299 void raw_printf
 300 VA_DECL(const char *, line)
 301 {
 302     VA_START(line);
 303     VA_INIT(line, char *);
 304     vraw_printf(line, VA_ARGS);
 305     VA_END();
 306 }
 307
 308 # ifdef USE_STDARG
 309 static void
 310 vraw_printf(const char *line, va_list the_args)
 311 # else
 312 static void
 313 vraw_printf(line, the_args)
 314 const char *line;
 315 va_list the_args;
 316 # endif
 317
 318 #else /* USE_STDARG | USE_VARARG */
 319
 320 void raw_printf
 321 VA_DECL(const char *, line)
 322 #endif
 323 {
 324     char pbuf[3 * BUFSZ];
 325     int ln;
 326     /* Do NOT use VA_START and VA_END in here... see above */
 327
 328     if (index(line, '%')) {
 329         Vsprintf(pbuf, line, VA_ARGS);
 330         line = pbuf;
 331     }
 332     if ((ln = (int) strlen(line)) > BUFSZ - 1) {
 333         if (line != pbuf)
 334             line = strncpy(pbuf, line, BUFSZ - 1);
 335         /* unlike pline, we don't futz around to keep last few chars */
 336         pbuf[BUFSZ - 1] = '\0'; /* terminate strncpy or truncate vsprintf */
 337     }
 338     raw_print(line);
 339 #if !(defined(USE_STDARG) || defined(USE_VARARGS))
 340     VA_END(); /* (see vpline) */
 341 #endif
 342 }
 343
 344 /*VARARGS1*/
 345 void impossible
 346 VA_DECL(const char *, s)
 347 {
 348     char pbuf[2 * BUFSZ];
 349     VA_START(s);
 350     VA_INIT(s, const char *);
 351     if (program_state.in_impossible)
 352         panic("impossible called impossible");
 353
 354     program_state.in_impossible = 1;
 355     Vsprintf(pbuf, s, VA_ARGS);
 356     pbuf[BUFSZ - 1] = '\0'; /* sanity */
 357     paniclog("impossible", pbuf);
 358     pline("%s", pbuf);
 359     pline("Program in disorder - perhaps you'd better #quit.");
 360     program_state.in_impossible = 0;
 361     VA_END();
 362 }
 363
 364 const char *
 365 align_str(alignment)
 366 aligntyp alignment;
 367 {
 368     switch ((int) alignment) {
 369     case A_CHAOTIC:
 370         return "chaotic";
 371     case A_NEUTRAL:
 372         return "neutral";
 373     case A_LAWFUL:
 374         return "lawful";
 375     case A_NONE:
 376         return "unaligned";
 377     }
 378     return "unknown";
 379 }
 380
 381 void
 382 mstatusline(mtmp)
 383 register struct monst *mtmp;
 384 {
 385     aligntyp alignment = mon_aligntyp(mtmp);
 386     char info[BUFSZ], monnambuf[BUFSZ];
 387
 388     info[0] = 0;
 389     if (mtmp->mtame) {
 390         Strcat(info, ", tame");
 391         if (wizard) {
 392             Sprintf(eos(info), " (%d", mtmp->mtame);
 393             if (!mtmp->isminion)
 394                 Sprintf(eos(info), "; hungry %ld; apport %d",
 395                         EDOG(mtmp)->hungrytime, EDOG(mtmp)->apport);
 396             Strcat(info, ")");
 397         }
 398     } else if (mtmp->mpeaceful)
 399         Strcat(info, ", peaceful");
 400
 401     if (mtmp->data == &mons[PM_LONG_WORM]) {
 402         int segndx, nsegs = count_wsegs(mtmp);
 403
 404         /* the worm code internals don't consider the head of be one of
 405            the worm's segments, but we count it as such when presenting
 406            worm feedback to the player */
 407         if (!nsegs) {
 408             Strcat(info, ", single segment");
 409         } else {
 410             ++nsegs; /* include head in the segment count */
 411             segndx = wseg_at(mtmp, bhitpos.x, bhitpos.y);
 412             Sprintf(eos(info), ", %d%s of %d segments",
 413                     segndx, ordin(segndx), nsegs);
 414         }
 415     }
 416     if (mtmp->cham >= LOW_PM && mtmp->data != &mons[mtmp->cham])
 417         /* don't reveal the innate form (chameleon, vampire, &c),
 418            just expose the fact that this current form isn't it */
 419         Strcat(info, ", shapechanger");
 420     /* pets eating mimic corpses mimic while eating, so this comes first */
 421     if (mtmp->meating)
 422         Strcat(info, ", eating");
 423     /* a stethoscope exposes mimic before getting here so this
 424        won't be relevant for it, but wand of probing doesn't */
 425     if (mtmp->mundetected || mtmp->m_ap_type)
 426         mhidden_description(mtmp, TRUE, eos(info));
 427     if (mtmp->mcan)
 428         Strcat(info, ", cancelled");
 429     if (mtmp->mconf)
 430         Strcat(info, ", confused");
 431     if (mtmp->mblinded || !mtmp->mcansee)
 432         Strcat(info, ", blind");
 433     if (mtmp->mstun)
 434         Strcat(info, ", stunned");
 435     if (mtmp->msleeping)
 436         Strcat(info, ", asleep");
 437 #if 0 /* unfortunately mfrozen covers temporary sleep and being busy \
 438          (donning armor, for instance) as well as paralysis */
 439         else if (mtmp->mfrozen)   Strcat(info, ", paralyzed");
 440 #else
 441     else if (mtmp->mfrozen || !mtmp->mcanmove)
 442         Strcat(info, ", can't move");
 443 #endif
 444     /* [arbitrary reason why it isn't moving] */
 445     else if (mtmp->mstrategy & STRAT_WAITMASK)
 446         Strcat(info, ", meditating");
 447     if (mtmp->mflee)
 448         Strcat(info, ", scared");
 449     if (mtmp->mtrapped)
 450         Strcat(info, ", trapped");
 451     if (mtmp->mspeed)
 452         Strcat(info, mtmp->mspeed == MFAST ? ", fast" : mtmp->mspeed == MSLOW
 453                                                             ? ", slow"
 454                                                             : ", ???? speed");
 455     if (mtmp->minvis)
 456         Strcat(info, ", invisible");
 457     if (mtmp == u.ustuck)
 458         Strcat(info, sticks(youmonst.data)
 459                          ? ", held by you"
 460                          : !u.uswallow ? ", holding you"
 461                                        : attacktype_fordmg(u.ustuck->data,
 462                                                            AT_ENGL, AD_DGST)
 463                                              ? ", digesting you"
 464                                              : is_animal(u.ustuck->data)
 465                                                    ? ", swallowing you"
 466                                                    : ", engulfing you");
 467     if (mtmp == u.usteed)
 468         Strcat(info, ", carrying you");
 469
 470     /* avoid "Status of the invisible newt ..., invisible" */
 471     /* and unlike a normal mon_nam, use "saddled" even if it has a name */
 472     Strcpy(monnambuf, x_monnam(mtmp, ARTICLE_THE, (char *) 0,
 473                                (SUPPRESS_IT | SUPPRESS_INVISIBLE), FALSE));
 474
 475     pline("Status of %s (%s):  Level %d  HP %d(%d)  AC %d%s.", monnambuf,
 476           align_str(alignment), mtmp->m_lev, mtmp->mhp, mtmp->mhpmax,
 477           find_mac(mtmp), info);
 478 }
 479
 480 void
 481 ustatusline()
 482 {
 483     char info[BUFSZ];
 484
 485     info[0] = '\0';
 486     if (Sick) {
 487         Strcat(info, ", dying from");
 488         if (u.usick_type & SICK_VOMITABLE)
 489             Strcat(info, " food poisoning");
 490         if (u.usick_type & SICK_NONVOMITABLE) {
 491             if (u.usick_type & SICK_VOMITABLE)
 492                 Strcat(info, " and");
 493             Strcat(info, " illness");
 494         }
 495     }
 496     if (Stoned)
 497         Strcat(info, ", solidifying");
 498     if (Slimed)
 499         Strcat(info, ", becoming slimy");
 500     if (Strangled)
 501         Strcat(info, ", being strangled");
 502     if (Vomiting)
 503         Strcat(info, ", nauseated"); /* !"nauseous" */
 504     if (Confusion)
 505         Strcat(info, ", confused");
 506     if (Blind) {
 507         Strcat(info, ", blind");
 508         if (u.ucreamed) {
 509             if ((long) u.ucreamed < Blinded || Blindfolded
 510                 || !haseyes(youmonst.data))
 511                 Strcat(info, ", cover");
 512             Strcat(info, "ed by sticky goop");
 513         } /* note: "goop" == "glop"; variation is intentional */
 514     }
 515     if (Stunned)
 516         Strcat(info, ", stunned");
 517     if (!u.usteed && Wounded_legs) {
 518         const char *what = body_part(LEG);
 519         if ((Wounded_legs & BOTH_SIDES) == BOTH_SIDES)
 520             what = makeplural(what);
 521         Sprintf(eos(info), ", injured %s", what);
 522     }
 523     if (Glib)
 524         Sprintf(eos(info), ", slippery %s", makeplural(body_part(HAND)));
 525     if (u.utrap)
 526         Strcat(info, ", trapped");
 527     if (Fast)
 528         Strcat(info, Very_fast ? ", very fast" : ", fast");
 529     if (u.uundetected)
 530         Strcat(info, ", concealed");
 531     if (Invis)
 532         Strcat(info, ", invisible");
 533     if (u.ustuck) {
 534         if (sticks(youmonst.data))
 535             Strcat(info, ", holding ");
 536         else
 537             Strcat(info, ", held by ");
 538         Strcat(info, mon_nam(u.ustuck));
 539     }
 540
 541     pline("Status of %s (%s%s):  Level %d  HP %d(%d)  AC %d%s.", plname,
 542           (u.ualign.record >= 20)
 543               ? "piously "
 544               : (u.ualign.record > 13)
 545                     ? "devoutly "
 546                     : (u.ualign.record > 8)
 547                           ? "fervently "
 548                           : (u.ualign.record > 3)
 549                                 ? "stridently "
 550                                 : (u.ualign.record == 3)
 551                                       ? ""
 552                                       : (u.ualign.record >= 1)
 553                                             ? "haltingly "
 554                                             : (u.ualign.record == 0)
 555                                                   ? "nominally "
 556                                                   : "insufficiently ",
 557           align_str(u.ualign.type),
 558           Upolyd ? mons[u.umonnum].mlevel : u.ulevel, Upolyd ? u.mh : u.uhp,
 559           Upolyd ? u.mhmax : u.uhpmax, u.uac, info);
 560 }
 561
 562 void
 563 self_invis_message()
 564 {
 565     pline("%s %s.",
 566           Hallucination ? "Far out, man!  You" : "Gee!  All of a sudden, you",
 567           See_invisible ? "can see right through yourself"
 568                         : "can't see yourself");
 569 }
 570
 571 void
 572 pudding_merge_message(otmp, otmp2)
 573 struct obj *otmp;
 574 struct obj *otmp2;
 575 {
 576     boolean visible =
 577         cansee(otmp->ox, otmp->oy) || cansee(otmp2->ox, otmp2->oy);
 578     boolean onfloor = otmp->where == OBJ_FLOOR || otmp2->where == OBJ_FLOOR;
 579     boolean inpack = carried(otmp) || carried(otmp2);
 580
 581     /* the player will know something happened inside his own inventory */
 582     if ((!Blind && visible) || inpack) {
 583         if (Hallucination) {
 584             if (onfloor) {
 585                 You_see("parts of the floor melting!");
 586             } else if (inpack) {
 587                 Your("pack reaches out and grabs something!");
 588             }
 589             /* even though we can see where they should be,
 590              * they'll be out of our view (minvent or container)
 591              * so don't actually show anything */
 592         } else if (onfloor || inpack) {
 593             pline("The %s coalesce%s.", makeplural(obj_typename(otmp->otyp)),
 594                   inpack ? " inside your pack" : "");
 595         }
 596     } else {
 597         You_hear("a faint sloshing sound.");
 598     }
 599 }
 600
 601 #if defined(MSGHANDLER) && (defined(POSIX_TYPES) || defined(__GNUC__))
 602 static boolean use_pline_handler = TRUE;
 603 static void
 604 execplinehandler(line)
 605 const char *line;
 606 {
 607     int f;
 608     const char *args[3];
 609     char *env;
 610
 611     if (!use_pline_handler)
 612         return;
 613
 614     if (!(env = nh_getenv("NETHACK_MSGHANDLER"))) {
 615         use_pline_handler = FALSE;
 616         return;
 617     }
 618
 619     f = fork();
 620     if (f == 0) { /* child */
 621         args[0] = env;
 622         args[1] = line;
 623         args[2] = NULL;
 624         (void) setgid(getgid());
 625         (void) setuid(getuid());
 626         (void) execv(args[0], (char *const *) args);
 627         perror((char *) 0);
 628         (void) fprintf(stderr, "Exec to message handler %s failed.\n",
 629                        env);
 630         terminate(EXIT_FAILURE);
 631     } else if (f == -1) {
 632         perror((char *) 0);
 633         use_pline_handler = FALSE;
 634         pline("Fork to message handler failed.");
 635     }
 636 }
 637 #endif /* defined(POSIX_TYPES) || defined(__GNUC__) */
 638
 639 /*pline.c*/