main.c revision 1.7
1#ifndef lint 2static char rcsid[] = "$NetBSD: main.c,v 1.7 1995/04/24 12:24:01 cgd Exp $"; 3#endif /* not lint */ 4 5/* main.c */ 6#include <sys/types.h> 7#include "header.h" 8#include <pwd.h> 9#include <string.h> 10 11static char copyright[]="\nLarn is copyrighted 1986 by Noah Morgan.\n"; 12int srcount=0; /* line counter for showstr() */ 13int dropflag=0; /* if 1 then don't lookforobject() next round */ 14int rmst=80; /* random monster creation counter */ 15int userid; /* the players login user id number */ 16char nowelcome=0,nomove=0; /* if (nomove) then don't count next iteration as a move */ 17static char viewflag=0; 18 /* if viewflag then we have done a 99 stay here and don't showcell in the main loop */ 19char restorflag=0; /* 1 means restore has been done */ 20static char cmdhelp[] = "\ 21Cmd line format: larn [-slicnh] [-o<optsifle>] [-##] [++]\n\ 22 -s show the scoreboard\n\ 23 -l show the logfile (wizard id only)\n\ 24 -i show scoreboard with inventories of dead characters\n\ 25 -c create new scoreboard (wizard id only)\n\ 26 -n suppress welcome message on starting game\n\ 27 -## specify level of difficulty (example: -5)\n\ 28 -h print this help text\n\ 29 ++ restore game from checkpoint file\n\ 30 -o<optsfile> specify .larnopts filename to be used instead of \"~/.larnopts\"\n\ 31"; 32#ifdef VT100 33static char *termtypes[] = { "vt100", "vt101", "vt102", "vt103", "vt125", 34 "vt131", "vt140", "vt180", "vt220", "vt240", "vt241", "vt320", "vt340", 35 "vt341" }; 36#endif VT100 37/* 38 ************ 39 MAIN PROGRAM 40 ************ 41 */ 42main(argc,argv) 43 int argc; 44 char **argv; 45 { 46 register int i,j; 47 int hard; 48 char *ptr=0,*ttype; 49 struct passwd *pwe; 50 51/* 52 * first task is to identify the player 53 */ 54#ifndef VT100 55 init_term(); /* setup the terminal (find out what type) for termcap */ 56#endif VT100 57 if (((ptr = getlogin()) == 0) || (*ptr==0)) /* try to get login name */ 58 if (pwe=getpwuid(getuid())) /* can we get it from /etc/passwd? */ 59 ptr = pwe->pw_name; 60 else 61 if ((ptr = getenv("USER")) == 0) 62 if ((ptr = getenv("LOGNAME")) == 0) 63 { 64 noone: write(2, "Can't find your logname. Who Are You?\n",39); 65 exit(); 66 } 67 if (ptr==0) goto noone; 68 if (strlen(ptr)==0) goto noone; 69/* 70 * second task is to prepare the pathnames the player will need 71 */ 72 strcpy(loginname,ptr); /* save loginname of the user for logging purposes */ 73 strcpy(logname,ptr); /* this will be overwritten with the players name */ 74 if ((ptr = getenv("HOME")) == 0) ptr = "."; 75 strcpy(savefilename, ptr); 76 strcat(savefilename, "/Larn.sav"); /* save file name in home directory */ 77 sprintf(optsfile, "%s/.larnopts",ptr); /* the .larnopts filename */ 78 79/* 80 * now malloc the memory for the dungeon 81 */ 82 cell = (struct cel *)malloc(sizeof(struct cel)*(MAXLEVEL+MAXVLEVEL)*MAXX*MAXY); 83 if (cell == 0) died(-285); /* malloc failure */ 84 lpbuf = malloc((5* BUFBIG)>>2); /* output buffer */ 85 inbuffer = malloc((5*MAXIBUF)>>2); /* output buffer */ 86 if ((lpbuf==0) || (inbuffer==0)) died(-285); /* malloc() failure */ 87 88 lcreat((char*)0); newgame(); /* set the initial clock */ hard= -1; 89 90#ifdef VT100 91/* 92 * check terminal type to avoid users who have not vt100 type terminals 93 */ 94 ttype = getenv("TERM"); 95 for (j=1, i=0; i<sizeof(termtypes)/sizeof(char *); i++) 96 if (strcmp(ttype,termtypes[i]) == 0) { j=0; break; } 97 if (j) 98 { 99 lprcat("Sorry, Larn needs a VT100 family terminal for all it's features.\n"); lflush(); 100 exit(); 101 } 102#endif VT100 103 104/* 105 * now make scoreboard if it is not there (don't clear) 106 */ 107 if (access(scorefile,0) == -1) /* not there */ 108 makeboard(); 109 110/* 111 * now process the command line arguments 112 */ 113 for (i=1; i<argc; i++) 114 { 115 if (argv[i][0] == '-') 116 switch(argv[i][1]) 117 { 118 case 's': showscores(); exit(); /* show scoreboard */ 119 120 case 'l': /* show log file */ 121 diedlog(); exit(); 122 123 case 'i': showallscores(); exit(); /* show all scoreboard */ 124 125 case 'c': /* anyone with password can create scoreboard */ 126 lprcat("Preparing to initialize the scoreboard.\n"); 127 if (getpassword() != 0) /*make new scoreboard*/ 128 { 129 makeboard(); lprc('\n'); showscores(); 130 } 131 exit(); 132 133 case 'n': /* no welcome msg */ nowelcome=1; argv[i][0]=0; break; 134 135 case '0': case '1': case '2': case '3': case '4': case '5': 136 case '6': case '7': case '8': case '9': /* for hardness */ 137 sscanf(&argv[i][1],"%d",&hard); 138 break; 139 140 case 'h': /* print out command line arguments */ 141 write(1,cmdhelp,sizeof(cmdhelp)); exit(); 142 143 case 'o': /* specify a .larnopts filename */ 144 strncpy(optsfile,argv[i]+2,127); break; 145 146 default: printf("Unknown option <%s>\n",argv[i]); exit(); 147 }; 148 149 if (argv[i][0] == '+') 150 { 151 clear(); restorflag = 1; 152 if (argv[i][1] == '+') 153 { 154 hitflag=1; restoregame(ckpfile); /* restore checkpointed game */ 155 } 156 i = argc; 157 } 158 } 159 160 readopts(); /* read the options file if there is one */ 161 162 163#ifdef UIDSCORE 164 userid = geteuid(); /* obtain the user's effective id number */ 165#else UIDSCORE 166 userid = getplid(logname); /* obtain the players id number */ 167#endif UIDSCORE 168 if (userid < 0) { write(2,"Can't obtain playerid\n",22); exit(); } 169 170#ifdef HIDEBYLINK 171/* 172 * this section of code causes the program to look like something else to ps 173 */ 174 if (strcmp(psname,argv[0])) /* if a different process name only */ 175 { 176 if ((i=access(psname,1)) < 0) 177 { /* link not there */ 178 if (link(argv[0],psname)>=0) 179 { 180 argv[0] = psname; execv(psname,argv); 181 } 182 } 183 else 184 unlink(psname); 185 } 186 187 for (i=1; i<argc; i++) 188 { 189 szero(argv[i]); /* zero the argument to avoid ps snooping */ 190 } 191#endif HIDEBYLINK 192 193 if (access(savefilename,0)==0) /* restore game if need to */ 194 { 195 clear(); restorflag = 1; 196 hitflag=1; restoregame(savefilename); /* restore last game */ 197 } 198 sigsetup(); /* trap all needed signals */ 199 sethard(hard); /* set up the desired difficulty */ 200 setupvt100(); /* setup the terminal special mode */ 201 if (c[HP]==0) /* create new game */ 202 { 203 makeplayer(); /* make the character that will play */ 204 newcavelevel(0);/* make the dungeon */ 205 predostuff = 1; /* tell signals that we are in the welcome screen */ 206 if (nowelcome==0) welcome(); /* welcome the player to the game */ 207 } 208 drawscreen(); /* show the initial dungeon */ 209 predostuff = 2; /* tell the trap functions that they must do a showplayer() 210 from here on */ 211 /* nice(1); /* games should be run niced */ 212 yrepcount = hit2flag = 0; 213 while (1) 214 { 215 if (dropflag==0) lookforobject(); /* see if there is an object here */ 216 else dropflag=0; /* don't show it just dropped an item */ 217 if (hitflag==0) { if (c[HASTEMONST]) movemonst(); movemonst(); } /* move the monsters */ 218 if (viewflag==0) showcell(playerx,playery); else viewflag=0; /* show stuff around player */ 219 if (hit3flag) flushall(); 220 hitflag=hit3flag=0; nomove=1; 221 bot_linex(); /* update bottom line */ 222 while (nomove) 223 { 224 if (hit3flag) flushall(); 225 nomove=0; parse(); 226 } /* get commands and make moves */ 227 regen(); /* regenerate hp and spells */ 228 if (c[TIMESTOP]==0) 229 if (--rmst <= 0) 230 { rmst = 120-(level<<2); fillmonst(makemonst(level)); } 231 } 232 } 233 234/* 235 showstr() 236 237 show character's inventory 238 */ 239showstr() 240 { 241 register int i,number; 242 for (number=3, i=0; i<26; i++) 243 if (iven[i]) number++; /* count items in inventory */ 244 t_setup(number); qshowstr(); t_endup(number); 245 } 246 247qshowstr() 248 { 249 register int i,j,k,sigsav; 250 srcount=0; sigsav=nosignal; nosignal=1; /* don't allow ^c etc */ 251 if (c[GOLD]) { lprintf(".) %d gold pieces",(long)c[GOLD]); srcount++; } 252 for (k=26; k>=0; k--) 253 if (iven[k]) 254 { for (i=22; i<84; i++) 255 for (j=0; j<=k; j++) if (i==iven[j]) show3(j); k=0; } 256 257 lprintf("\nElapsed time is %d. You have %d mobuls left",(long)((gtime+99)/100+1),(long)((TIMELIMIT-gtime)/100)); 258 more(); nosignal=sigsav; 259 } 260 261/* 262 * subroutine to clear screen depending on # lines to display 263 */ 264t_setup(count) 265 register int count; 266 { 267 if (count<20) /* how do we clear the screen? */ 268 { 269 cl_up(79,count); cursor(1,1); 270 } 271 else 272 { 273 resetscroll(); clear(); 274 } 275 } 276 277/* 278 * subroutine to restore normal display screen depending on t_setup() 279 */ 280t_endup(count) 281 register int count; 282 { 283 if (count<18) /* how did we clear the screen? */ 284 draws(0,MAXX,0,(count>MAXY) ? MAXY : count); 285 else 286 { 287 drawscreen(); setscroll(); 288 } 289 } 290 291/* 292 function to show the things player is wearing only 293 */ 294showwear() 295 { 296 register int i,j,sigsav,count; 297 sigsav=nosignal; nosignal=1; /* don't allow ^c etc */ 298 srcount=0; 299 300 for (count=2,j=0; j<=26; j++) /* count number of items we will display */ 301 if (i=iven[j]) 302 switch(i) 303 { 304 case OLEATHER: case OPLATE: case OCHAIN: 305 case ORING: case OSTUDLEATHER: case OSPLINT: 306 case OPLATEARMOR: case OSSPLATE: case OSHIELD: 307 count++; 308 }; 309 310 t_setup(count); 311 312 for (i=22; i<84; i++) 313 for (j=0; j<=26; j++) 314 if (i==iven[j]) 315 switch(i) 316 { 317 case OLEATHER: case OPLATE: case OCHAIN: 318 case ORING: case OSTUDLEATHER: case OSPLINT: 319 case OPLATEARMOR: case OSSPLATE: case OSHIELD: 320 show3(j); 321 }; 322 more(); nosignal=sigsav; t_endup(count); 323 } 324 325/* 326 function to show the things player can wield only 327 */ 328showwield() 329 { 330 register int i,j,sigsav,count; 331 sigsav=nosignal; nosignal=1; /* don't allow ^c etc */ 332 srcount=0; 333 334 for (count=2,j=0; j<=26; j++) /* count how many items */ 335 if (i=iven[j]) 336 switch(i) 337 { 338 case ODIAMOND: case ORUBY: case OEMERALD: case OSAPPHIRE: 339 case OBOOK: case OCHEST: case OLARNEYE: case ONOTHEFT: 340 case OSPIRITSCARAB: case OCUBEofUNDEAD: 341 case OPOTION: case OSCROLL: break; 342 default: count++; 343 }; 344 345 t_setup(count); 346 347 for (i=22; i<84; i++) 348 for (j=0; j<=26; j++) 349 if (i==iven[j]) 350 switch(i) 351 { 352 case ODIAMOND: case ORUBY: case OEMERALD: case OSAPPHIRE: 353 case OBOOK: case OCHEST: case OLARNEYE: case ONOTHEFT: 354 case OSPIRITSCARAB: case OCUBEofUNDEAD: 355 case OPOTION: case OSCROLL: break; 356 default: show3(j); 357 }; 358 more(); nosignal=sigsav; t_endup(count); 359 } 360 361/* 362 * function to show the things player can read only 363 */ 364showread() 365 { 366 register int i,j,sigsav,count; 367 sigsav=nosignal; nosignal=1; /* don't allow ^c etc */ 368 srcount=0; 369 370 for (count=2,j=0; j<=26; j++) 371 switch(iven[j]) 372 { 373 case OBOOK: case OSCROLL: count++; 374 }; 375 t_setup(count); 376 377 for (i=22; i<84; i++) 378 for (j=0; j<=26; j++) 379 if (i==iven[j]) 380 switch(i) 381 { 382 case OBOOK: case OSCROLL: show3(j); 383 }; 384 more(); nosignal=sigsav; t_endup(count); 385 } 386 387/* 388 * function to show the things player can eat only 389 */ 390showeat() 391 { 392 register int i,j,sigsav,count; 393 sigsav=nosignal; nosignal=1; /* don't allow ^c etc */ 394 srcount=0; 395 396 for (count=2,j=0; j<=26; j++) 397 switch(iven[j]) 398 { 399 case OCOOKIE: count++; 400 }; 401 t_setup(count); 402 403 for (i=22; i<84; i++) 404 for (j=0; j<=26; j++) 405 if (i==iven[j]) 406 switch(i) 407 { 408 case OCOOKIE: show3(j); 409 }; 410 more(); nosignal=sigsav; t_endup(count); 411 } 412 413/* 414 function to show the things player can quaff only 415 */ 416showquaff() 417 { 418 register int i,j,sigsav,count; 419 sigsav=nosignal; nosignal=1; /* don't allow ^c etc */ 420 srcount=0; 421 422 for (count=2,j=0; j<=26; j++) 423 switch(iven[j]) 424 { 425 case OPOTION: count++; 426 }; 427 t_setup(count); 428 429 for (i=22; i<84; i++) 430 for (j=0; j<=26; j++) 431 if (i==iven[j]) 432 switch(i) 433 { 434 case OPOTION: show3(j); 435 }; 436 more(); nosignal=sigsav; t_endup(count); 437 } 438 439show1(idx,str2) 440 register int idx; 441 register char *str2[]; 442 { 443 lprintf("\n%c) %s",idx+'a',objectname[iven[idx]]); 444 if (str2!=0 && str2[ivenarg[idx]][0]!=0) lprintf(" of%s",str2[ivenarg[idx]]); 445 } 446 447show3(index) 448 register int index; 449 { 450 switch(iven[index]) 451 { 452 case OPOTION: show1(index,potionname); break; 453 case OSCROLL: show1(index,scrollname); break; 454 455 case OLARNEYE: case OBOOK: case OSPIRITSCARAB: 456 case ODIAMOND: case ORUBY: case OCUBEofUNDEAD: 457 case OEMERALD: case OCHEST: case OCOOKIE: 458 case OSAPPHIRE: case ONOTHEFT: show1(index,(char **)0); break; 459 460 default: lprintf("\n%c) %s",index+'a',objectname[iven[index]]); 461 if (ivenarg[index]>0) lprintf(" + %d",(long)ivenarg[index]); 462 else if (ivenarg[index]<0) lprintf(" %d",(long)ivenarg[index]); 463 break; 464 } 465 if (c[WIELD]==index) lprcat(" (weapon in hand)"); 466 if ((c[WEAR]==index) || (c[SHIELD]==index)) lprcat(" (being worn)"); 467 if (++srcount>=22) { srcount=0; more(); clear(); } 468 } 469 470/* 471 subroutine to randomly create monsters if needed 472 */ 473randmonst() 474 { 475 if (c[TIMESTOP]) return; /* don't make monsters if time is stopped */ 476 if (--rmst <= 0) 477 { 478 rmst = 120 - (level<<2); fillmonst(makemonst(level)); 479 } 480 } 481 482 483/* 484 parse() 485 486 get and execute a command 487 */ 488parse() 489 { 490 register int i,j,k,flag; 491 while (1) 492 { 493 k = yylex(); 494 switch(k) /* get the token from the input and switch on it */ 495 { 496 case 'h': moveplayer(4); return; /* west */ 497 case 'H': run(4); return; /* west */ 498 case 'l': moveplayer(2); return; /* east */ 499 case 'L': run(2); return; /* east */ 500 case 'j': moveplayer(1); return; /* south */ 501 case 'J': run(1); return; /* south */ 502 case 'k': moveplayer(3); return; /* north */ 503 case 'K': run(3); return; /* north */ 504 case 'u': moveplayer(5); return; /* northeast */ 505 case 'U': run(5); return; /* northeast */ 506 case 'y': moveplayer(6); return; /* northwest */ 507 case 'Y': run(6); return; /* northwest */ 508 case 'n': moveplayer(7); return; /* southeast */ 509 case 'N': run(7); return; /* southeast */ 510 case 'b': moveplayer(8); return; /* southwest */ 511 case 'B': run(8); return; /* southwest */ 512 513 case '.': if (yrepcount) viewflag=1; return; /* stay here */ 514 515 case 'w': yrepcount=0; wield(); return; /* wield a weapon */ 516 517 case 'W': yrepcount=0; wear(); return; /* wear armor */ 518 519 case 'r': yrepcount=0; 520 if (c[BLINDCOUNT]) { cursors(); lprcat("\nYou can't read anything when you're blind!"); } else 521 if (c[TIMESTOP]==0) readscr(); return; /* to read a scroll */ 522 523 case 'q': yrepcount=0; if (c[TIMESTOP]==0) quaff(); return; /* quaff a potion */ 524 525 case 'd': yrepcount=0; if (c[TIMESTOP]==0) dropobj(); return; /* to drop an object */ 526 527 case 'c': yrepcount=0; cast(); return; /* cast a spell */ 528 529 case 'i': yrepcount=0; nomove=1; showstr(); return; /* status */ 530 531 case 'e': yrepcount=0; 532 if (c[TIMESTOP]==0) eatcookie(); return; /* to eat a fortune cookie */ 533 534 case 'D': yrepcount=0; seemagic(0); nomove=1; return; /* list spells and scrolls */ 535 536 case '?': yrepcount=0; help(); nomove=1; return; /* give the help screen*/ 537 538 case 'S': clear(); lprcat("Saving . . ."); lflush(); 539 savegame(savefilename); wizard=1; died(-257); /* save the game - doesn't return */ 540 541 case 'Z': yrepcount=0; if (c[LEVEL]>9) { oteleport(1); return; } 542 cursors(); lprcat("\nAs yet, you don't have enough experience to use teleportation"); 543 return; /* teleport yourself */ 544 545 case '^': /* identify traps */ flag=yrepcount=0; cursors(); 546 lprc('\n'); for (j=playery-1; j<playery+2; j++) 547 { 548 if (j < 0) j=0; if (j >= MAXY) break; 549 for (i=playerx-1; i<playerx+2; i++) 550 { 551 if (i < 0) i=0; if (i >= MAXX) break; 552 switch(item[i][j]) 553 { 554 case OTRAPDOOR: case ODARTRAP: 555 case OTRAPARROW: case OTELEPORTER: 556 lprcat("\nIts "); lprcat(objectname[item[i][j]]); flag++; 557 }; 558 } 559 } 560 if (flag==0) lprcat("\nNo traps are visible"); 561 return; 562 563#if WIZID 564 case '_': /* this is the fudge player password for wizard mode*/ 565 yrepcount=0; cursors(); nomove=1; 566 if (userid!=wisid) 567 { 568 lprcat("Sorry, you are not empowered to be a wizard.\n"); 569 scbr(); /* system("stty -echo cbreak"); */ 570 lflush(); return; 571 } 572 if (getpassword()==0) 573 { 574 scbr(); /* system("stty -echo cbreak"); */ return; 575 } 576 wizard=1; scbr(); /* system("stty -echo cbreak"); */ 577 for (i=0; i<6; i++) c[i]=70; iven[0]=iven[1]=0; 578 take(OPROTRING,50); take(OLANCE,25); c[WIELD]=1; 579 c[LANCEDEATH]=1; c[WEAR] = c[SHIELD] = -1; 580 raiseexperience(6000000L); c[AWARENESS] += 25000; 581 { 582 register int i,j; 583 for (i=0; i<MAXY; i++) 584 for (j=0; j<MAXX; j++) know[j][i]=1; 585 for (i=0; i<SPNUM; i++) spelknow[i]=1; 586 for (i=0; i<MAXSCROLL; i++) scrollname[i]=scrollhide[i]; 587 for (i=0; i<MAXPOTION; i++) potionname[i]=potionhide[i]; 588 } 589 for (i=0; i<MAXSCROLL; i++) 590 if (strlen(scrollname[i])>2) /* no null items */ 591 { item[i][0]=OSCROLL; iarg[i][0]=i; } 592 for (i=MAXX-1; i>MAXX-1-MAXPOTION; i--) 593 if (strlen(potionname[i-MAXX+MAXPOTION])>2) /* no null items */ 594 { item[i][0]=OPOTION; iarg[i][0]=i-MAXX+MAXPOTION; } 595 for (i=1; i<MAXY; i++) 596 { item[0][i]=i; iarg[0][i]=0; } 597 for (i=MAXY; i<MAXY+MAXX; i++) 598 { item[i-MAXY][MAXY-1]=i; iarg[i-MAXY][MAXY-1]=0; } 599 for (i=MAXX+MAXY; i<MAXX+MAXY+MAXY; i++) 600 { item[MAXX-1][i-MAXX-MAXY]=i; iarg[MAXX-1][i-MAXX-MAXY]=0; } 601 c[GOLD]+=25000; drawscreen(); return; 602#endif 603 604 case 'T': yrepcount=0; cursors(); if (c[SHIELD] != -1) { c[SHIELD] = -1; lprcat("\nYour shield is off"); bottomline(); } else 605 if (c[WEAR] != -1) { c[WEAR] = -1; lprcat("\nYour armor is off"); bottomline(); } 606 else lprcat("\nYou aren't wearing anything"); 607 return; 608 609 case 'g': cursors(); 610 lprintf("\nThe stuff you are carrying presently weighs %d pounds",(long)packweight()); 611 case ' ': yrepcount=0; nomove=1; return; 612 613 case 'v': yrepcount=0; cursors(); 614 lprintf("\nCaverns of Larn, Version %d.%d, Diff=%d",(long)VERSION,(long)SUBVERSION,(long)c[HARDGAME]); 615 if (wizard) lprcat(" Wizard"); nomove=1; 616 if (cheat) lprcat(" Cheater"); 617 lprcat(copyright); 618 return; 619 620 case 'Q': yrepcount=0; quit(); nomove=1; return; /* quit */ 621 622 case 'L'-64: yrepcount=0; drawscreen(); nomove=1; return; /* look */ 623 624#if WIZID 625#ifdef EXTRA 626 case 'A': yrepcount=0; nomove=1; if (wizard) { diag(); return; } /* create diagnostic file */ 627 return; 628#endif 629#endif 630 case 'P': cursors(); 631 if (outstanding_taxes>0) 632 lprintf("\nYou presently owe %d gp in taxes.",(long)outstanding_taxes); 633 else 634 lprcat("\nYou do not owe any taxes."); 635 return; 636 }; 637 } 638 } 639 640parse2() 641 { 642 if (c[HASTEMONST]) movemonst(); movemonst(); /* move the monsters */ 643 randmonst(); regen(); 644 } 645 646run(dir) 647 int dir; 648 { 649 register int i; 650 i=1; while (i) 651 { 652 i=moveplayer(dir); 653 if (i>0) { if (c[HASTEMONST]) movemonst(); movemonst(); randmonst(); regen(); } 654 if (hitflag) i=0; 655 if (i!=0) showcell(playerx,playery); 656 } 657 } 658 659/* 660 function to wield a weapon 661 */ 662wield() 663 { 664 register int i; 665 while (1) 666 { 667 if ((i = whatitem("wield"))=='\33') return; 668 if (i != '.') 669 { 670 if (i=='*') showwield(); 671 else if (iven[i-'a']==0) { ydhi(i); return; } 672 else if (iven[i-'a']==OPOTION) { ycwi(i); return; } 673 else if (iven[i-'a']==OSCROLL) { ycwi(i); return; } 674 else if ((c[SHIELD]!= -1) && (iven[i-'a']==O2SWORD)) { lprcat("\nBut one arm is busy with your shield!"); return; } 675 else { c[WIELD]=i-'a'; if (iven[i-'a'] == OLANCE) c[LANCEDEATH]=1; else c[LANCEDEATH]=0; bottomline(); return; } 676 } 677 } 678 } 679 680/* 681 common routine to say you don't have an item 682 */ 683ydhi(x) 684 int x; 685 { cursors(); lprintf("\nYou don't have item %c!",x); } 686ycwi(x) 687 int x; 688 { cursors(); lprintf("\nYou can't wield item %c!",x); } 689 690/* 691 function to wear armor 692 */ 693wear() 694 { 695 register int i; 696 while (1) 697 { 698 if ((i = whatitem("wear"))=='\33') return; 699 if (i != '.') 700 { 701 if (i=='*') showwear(); else 702 switch(iven[i-'a']) 703 { 704 case 0: ydhi(i); return; 705 case OLEATHER: case OCHAIN: case OPLATE: case OSTUDLEATHER: 706 case ORING: case OSPLINT: case OPLATEARMOR: case OSSPLATE: 707 if (c[WEAR] != -1) { lprcat("\nYou're already wearing some armor"); return; } 708 c[WEAR]=i-'a'; bottomline(); return; 709 case OSHIELD: if (c[SHIELD] != -1) { lprcat("\nYou are already wearing a shield"); return; } 710 if (iven[c[WIELD]]==O2SWORD) { lprcat("\nYour hands are busy with the two handed sword!"); return; } 711 c[SHIELD] = i-'a'; bottomline(); return; 712 default: lprcat("\nYou can't wear that!"); 713 }; 714 } 715 } 716 } 717 718/* 719 function to drop an object 720 */ 721dropobj() 722 { 723 register int i; 724 register char *p; 725 long amt; 726 p = &item[playerx][playery]; 727 while (1) 728 { 729 if ((i = whatitem("drop"))=='\33') return; 730 if (i=='*') showstr(); else 731 { 732 if (i=='.') /* drop some gold */ 733 { 734 if (*p) { lprcat("\nThere's something here already!"); return; } 735 lprcat("\n\n"); 736 cl_dn(1,23); 737 lprcat("How much gold do you drop? "); 738 if ((amt=readnum((long)c[GOLD])) == 0) return; 739 if (amt>c[GOLD]) 740 { lprcat("\nYou don't have that much!"); return; } 741 if (amt<=32767) 742 { *p=OGOLDPILE; i=amt; } 743 else if (amt<=327670L) 744 { *p=ODGOLD; i=amt/10; amt = 10*i; } 745 else if (amt<=3276700L) 746 { *p=OMAXGOLD; i=amt/100; amt = 100*i; } 747 else if (amt<=32767000L) 748 { *p=OKGOLD; i=amt/1000; amt = 1000*i; } 749 else 750 { *p=OKGOLD; i=32767; amt = 32767000L; } 751 c[GOLD] -= amt; 752 lprintf("You drop %d gold pieces",(long)amt); 753 iarg[playerx][playery]=i; bottomgold(); 754 know[playerx][playery]=0; dropflag=1; return; 755 } 756 drop_object(i-'a'); 757 return; 758 } 759 } 760 } 761 762/* 763 * readscr() Subroutine to read a scroll one is carrying 764 */ 765readscr() 766 { 767 register int i; 768 while (1) 769 { 770 if ((i = whatitem("read"))=='\33') return; 771 if (i != '.') 772 { 773 if (i=='*') showread(); else 774 { 775 if (iven[i-'a']==OSCROLL) { read_scroll(ivenarg[i-'a']); iven[i-'a']=0; return; } 776 if (iven[i-'a']==OBOOK) { readbook(ivenarg[i-'a']); iven[i-'a']=0; return; } 777 if (iven[i-'a']==0) { ydhi(i); return; } 778 lprcat("\nThere's nothing on it to read"); return; 779 } 780 } 781 } 782 } 783 784/* 785 * subroutine to eat a cookie one is carrying 786 */ 787eatcookie() 788{ 789register int i; 790char *p; 791while (1) 792 { 793 if ((i = whatitem("eat"))=='\33') return; 794 if (i != '.') 795 if (i=='*') showeat(); else 796 { 797 if (iven[i-'a']==OCOOKIE) 798 { 799 lprcat("\nThe cookie was delicious."); 800 iven[i-'a']=0; 801 if (!c[BLINDCOUNT]) 802 { 803 if (p=fortune()) 804 { 805 lprcat(" Inside you find a scrap of paper that says:\n"); 806 lprcat(p); 807 } 808 } 809 return; 810 } 811 if (iven[i-'a']==0) { ydhi(i); return; } 812 lprcat("\nYou can't eat that!"); return; 813 } 814 } 815} 816 817/* 818 * subroutine to quaff a potion one is carrying 819 */ 820quaff() 821 { 822 register int i; 823 while (1) 824 { 825 if ((i = whatitem("quaff"))=='\33') return; 826 if (i != '.') 827 { 828 if (i=='*') showquaff(); else 829 { 830 if (iven[i-'a']==OPOTION) { quaffpotion(ivenarg[i-'a']); iven[i-'a']=0; return; } 831 if (iven[i-'a']==0) { ydhi(i); return; } 832 lprcat("\nYou wouldn't want to quaff that, would you? "); return; 833 } 834 } 835 } 836 } 837 838/* 839 function to ask what player wants to do 840 */ 841whatitem(str) 842 char *str; 843 { 844 int i; 845 cursors(); lprintf("\nWhat do you want to %s [* for all] ? ",str); 846 i=0; while (i>'z' || (i<'a' && i!='*' && i!='\33' && i!='.')) i=getchar(); 847 if (i=='\33') lprcat(" aborted"); 848 return(i); 849 } 850 851/* 852 subroutine to get a number from the player 853 and allow * to mean return amt, else return the number entered 854 */ 855unsigned long readnum(mx) 856 long mx; 857 { 858 register int i; 859 register unsigned long amt=0; 860 sncbr(); 861 if ((i=getchar()) == '*') amt = mx; /* allow him to say * for all gold */ 862 else 863 while (i != '\n') 864 { 865 if (i=='\033') { scbr(); lprcat(" aborted"); return(0); } 866 if ((i <= '9') && (i >= '0') && (amt<99999999)) 867 amt = amt*10+i-'0'; 868 i = getchar(); 869 } 870 scbr(); return(amt); 871 } 872 873#ifdef HIDEBYLINK 874/* 875 * routine to zero every byte in a string 876 */ 877szero(str) 878 register char *str; 879 { 880 while (*str) 881 *str++ = 0; 882 } 883#endif HIDEBYLINK 884