initial import of 386bsd-0.1 sources

1 files changed, 878 insertions, 0 deletions

diff --git a/larn/main.c b/larn/main.c
new file mode 100644
index 00000000..dbe0c89d
--- /dev/null
+++ b/larn/main.c
@@ -0,0 +1,878 @@
+/*	main.c		*/
+#include <sys/types.h>
+#include "header.h"
+#include <pwd.h>
+static char copyright[]="\nLarn is copyrighted 1986 by Noah Morgan.\n";
+int srcount=0;	/* line counter for showstr()	*/
+int dropflag=0; /* if 1 then don't lookforobject() next round */
+int rmst=80;	/*	random monster creation counter		*/
+int userid;		/* the players login user id number */
+char nowelcome=0,nomove=0; /* if (nomove) then don't count next iteration as a move */
+static char viewflag=0;
+	/*	if viewflag then we have done a 99 stay here and don't showcell in the main loop */
+char restorflag=0;	/* 1 means restore has been done	*/
+static char cmdhelp[] = "\
+Cmd line format: larn [-slicnh] [-o<optsifle>] [-##] [++]\n\
+  -s   show the scoreboard\n\
+  -l   show the logfile (wizard id only)\n\
+  -i   show scoreboard with inventories of dead characters\n\
+  -c   create new scoreboard (wizard id only)\n\
+  -n   suppress welcome message on starting game\n\
+  -##  specify level of difficulty (example: -5)\n\
+  -h   print this help text\n\
+  ++   restore game from checkpoint file\n\
+  -o<optsfile>   specify .larnopts filename to be used instead of \"~/.larnopts\"\n\
+";
+#ifdef VT100
+static char *termtypes[] = { "vt100", "vt101", "vt102", "vt103", "vt125",
+	"vt131", "vt140", "vt180", "vt220", "vt240", "vt241", "vt320", "vt340",
+	"vt341"  };
+#endif VT100
+/*
+	************
+	MAIN PROGRAM
+	************
+ */
+main(argc,argv)
+	int argc;
+	char **argv;
+	{
+	register int i,j;
+	int hard;
+	char *ptr=0,*ttype;
+	struct passwd *pwe;
+
+/*
+ *	first task is to identify the player
+ */
+#ifndef VT100
+	init_term();	/* setup the terminal (find out what type) for termcap */
+#endif VT100
+	if (((ptr = getlogin()) == 0) || (*ptr==0))	/* try to get login name */
+	  if (pwe=getpwuid(getuid())) /* can we get it from /etc/passwd? */
+		ptr = pwe->pw_name;
+	  else
+	  if ((ptr = getenv("USER")) == 0)
+		if ((ptr = getenv("LOGNAME")) == 0)
+		  {
+		  noone: write(2, "Can't find your logname.  Who Are You?\n",39);
+		 		 exit();
+		  }
+	if (ptr==0) goto noone;
+	if (strlen(ptr)==0) goto noone;
+/*
+ *	second task is to prepare the pathnames the player will need
+ */
+	strcpy(loginname,ptr); /* save loginname of the user for logging purposes */
+	strcpy(logname,ptr);	/* this will be overwritten with the players name */
+	if ((ptr = getenv("HOME")) == 0) ptr = ".";
+	strcpy(savefilename, ptr);
+	strcat(savefilename, "/Larn.sav");	/* save file name in home directory */
+	sprintf(optsfile, "%s/.larnopts",ptr);	/* the .larnopts filename */
+
+/*
+ *	now malloc the memory for the dungeon 
+ */
+	cell = (struct cel *)malloc(sizeof(struct cel)*(MAXLEVEL+MAXVLEVEL)*MAXX*MAXY);
+	if (cell == 0) died(-285);	/* malloc failure */
+	lpbuf    = malloc((5* BUFBIG)>>2);	/* output buffer */
+	inbuffer = malloc((5*MAXIBUF)>>2);	/* output buffer */
+	if ((lpbuf==0) || (inbuffer==0)) died(-285); /* malloc() failure */
+
+	lcreat((char*)0);	newgame();		/*	set the initial clock  */ hard= -1;
+
+#ifdef VT100
+/*
+ *	check terminal type to avoid users who have not vt100 type terminals
+ */
+	ttype = getenv("TERM");
+	for (j=1, i=0; i<sizeof(termtypes)/sizeof(char *); i++)
+		if (strcmp(ttype,termtypes[i]) == 0) { j=0;  break; }
+	if (j)
+		{
+		lprcat("Sorry, Larn needs a VT100 family terminal for all it's features.\n"); lflush();
+		exit();
+		}
+#endif VT100
+
+/*
+ *	now make scoreboard if it is not there (don't clear) 
+ */
+	if (access(scorefile,0) == -1) /* not there */
+		makeboard();
+
+/*
+ *	now process the command line arguments 
+ */
+	for (i=1; i<argc; i++)
+		{
+		if (argv[i][0] == '-')
+		  switch(argv[i][1])
+			{
+			case 's': showscores();  exit();  /* show scoreboard   */
+
+			case 'l': /* show log file     */
+						diedlog();		exit();
+
+			case 'i': showallscores();  exit();  /* show all scoreboard */
+
+			case 'c': 		 /* anyone with password can create scoreboard */
+					  lprcat("Preparing to initialize the scoreboard.\n");
+					  if (getpassword() != 0)  /*make new scoreboard*/
+							{
+							makeboard(); lprc('\n'); showscores();
+							}
+					  exit();
+
+			case 'n':	/* no welcome msg	*/ nowelcome=1; argv[i][0]=0; break;
+
+			case '0': case '1': case '2': case '3': case '4': case '5':
+			case '6': case '7': case '8': case '9':	/* for hardness */
+						sscanf(&argv[i][1],"%d",&hard);	
+						break;
+
+			case 'h':	/* print out command line arguments */
+						write(1,cmdhelp,sizeof(cmdhelp));  exit();
+
+			case 'o':	/* specify a .larnopts filename */
+						strncpy(optsfile,argv[i]+2,127);  break;
+
+			default:	printf("Unknown option <%s>\n",argv[i]);  exit();
+			};
+
+		if (argv[i][0] == '+')
+			{
+			clear();	restorflag = 1;
+			if (argv[i][1] == '+')
+				{
+				hitflag=1; restoregame(ckpfile); /* restore checkpointed game */
+				}
+			i = argc;
+			}
+		}
+
+	readopts();		/* read the options file if there is one */
+
+
+#ifdef UIDSCORE
+	userid = geteuid();	/* obtain the user's effective id number */
+#else UIDSCORE
+	userid = getplid(logname);	/* obtain the players id number */
+#endif UIDSCORE
+	if (userid < 0) { write(2,"Can't obtain playerid\n",22); exit(); }
+
+#ifdef HIDEBYLINK
+/*
+ *	this section of code causes the program to look like something else to ps
+ */
+	if (strcmp(psname,argv[0])) /* if a different process name only */
+		{
+		if ((i=access(psname,1)) < 0)
+			{		/* link not there */
+			if (link(argv[0],psname)>=0)
+				{
+				argv[0] = psname;   execv(psname,argv);
+				}
+			}
+		else 
+			unlink(psname);
+		}
+
+	for (i=1; i<argc; i++)
+		{
+		szero(argv[i]);	/* zero the argument to avoid ps snooping */
+		}
+#endif HIDEBYLINK
+
+	if (access(savefilename,0)==0)	/* restore game if need to */
+		{
+		clear();	restorflag = 1;
+		hitflag=1;	restoregame(savefilename);  /* restore last game	*/
+		}
+	sigsetup();		/* trap all needed signals	*/
+	sethard(hard);	/* set up the desired difficulty				*/
+	setupvt100();	/*	setup the terminal special mode				*/
+	if (c[HP]==0)	/* create new game */
+		{
+		makeplayer();	/*	make the character that will play			*/
+		newcavelevel(0);/*	make the dungeon						 	*/
+		predostuff = 1;	/* tell signals that we are in the welcome screen */
+		if (nowelcome==0) welcome();	 /* welcome the player to the game */
+		}
+	drawscreen();	/*	show the initial dungeon					*/
+	predostuff = 2;	/* tell the trap functions that they must do a showplayer()
+						from here on */
+	/* nice(1);	/* games should be run niced */
+	yrepcount = hit2flag = 0;
+	while (1)
+		{
+		if (dropflag==0) lookforobject(); /* see if there is an object here	*/
+			else dropflag=0; /* don't show it just dropped an item */
+		if (hitflag==0) { if (c[HASTEMONST]) movemonst(); movemonst(); }	/*	move the monsters		*/
+		if (viewflag==0) showcell(playerx,playery); else viewflag=0;	/*	show stuff around player	*/
+		if (hit3flag) flushall();
+		hitflag=hit3flag=0;	nomove=1;
+		bot_linex();	/* update bottom line */
+		while (nomove)
+			{
+			if (hit3flag) flushall();
+			nomove=0; parse();
+			}	/*	get commands and make moves	*/
+		regen();			/*	regenerate hp and spells			*/
+		if (c[TIMESTOP]==0)
+			if (--rmst <= 0)
+				{ rmst = 120-(level<<2); fillmonst(makemonst(level)); }
+		}
+	}
+
+/*
+	showstr()
+
+	show character's inventory
+ */
+showstr()
+	{
+	register int i,number;
+	for (number=3, i=0; i<26; i++)
+		if (iven[i]) number++;	/* count items in inventory */
+	t_setup(number);	qshowstr();	  t_endup(number);
+	}
+
+qshowstr()
+	{
+	register int i,j,k,sigsav;
+	srcount=0;  sigsav=nosignal;  nosignal=1; /* don't allow ^c etc */
+	if (c[GOLD]) { lprintf(".)   %d gold pieces",(long)c[GOLD]); srcount++; }
+	for (k=26; k>=0; k--)
+	  if (iven[k])
+		{  for (i=22; i<84; i++)
+			 for (j=0; j<=k; j++)  if (i==iven[j])  show3(j); k=0; }
+
+	lprintf("\nElapsed time is %d.  You have %d mobuls left",(long)((gtime+99)/100+1),(long)((TIMELIMIT-gtime)/100));
+	more();		nosignal=sigsav;
+	}
+
+/*
+ *	subroutine to clear screen depending on # lines to display
+ */
+t_setup(count)
+	register int count;
+	{
+	if (count<20)  /* how do we clear the screen? */
+		{
+		cl_up(79,count);  cursor(1,1);
+		}
+	else
+		{
+		resetscroll(); clear();
+		}
+	}
+
+/*
+ *	subroutine to restore normal display screen depending on t_setup()
+ */
+t_endup(count)
+	register int count;
+	{
+	if (count<18)  /* how did we clear the screen? */
+		draws(0,MAXX,0,(count>MAXY) ? MAXY : count);
+	else
+		{
+		drawscreen(); setscroll();
+		}
+	}
+
+/*
+	function to show the things player is wearing only
+ */
+showwear()
+	{
+	register int i,j,sigsav,count;
+	sigsav=nosignal;  nosignal=1; /* don't allow ^c etc */
+	srcount=0;
+
+	 for (count=2,j=0; j<=26; j++)	 /* count number of items we will display */
+	   if (i=iven[j])
+		switch(i)
+			{
+			case OLEATHER:	case OPLATE:	case OCHAIN:
+			case ORING:		case OSTUDLEATHER:	case OSPLINT:
+			case OPLATEARMOR:	case OSSPLATE:	case OSHIELD:
+			count++;
+			};
+
+	t_setup(count);
+
+	for (i=22; i<84; i++)
+		 for (j=0; j<=26; j++)
+		   if (i==iven[j])
+			switch(i)
+				{
+				case OLEATHER:	case OPLATE:	case OCHAIN:
+				case ORING:		case OSTUDLEATHER:	case OSPLINT:
+				case OPLATEARMOR:	case OSSPLATE:	case OSHIELD:
+				show3(j);
+				};
+	more();		nosignal=sigsav;	t_endup(count);
+	}
+
+/*
+	function to show the things player can wield only 
+ */
+showwield()
+	{
+	register int i,j,sigsav,count;
+	sigsav=nosignal;  nosignal=1; /* don't allow ^c etc */
+	srcount=0;
+
+	 for (count=2,j=0; j<=26; j++)	/* count how many items */
+	   if (i=iven[j])
+		switch(i)
+			{
+			case ODIAMOND:  case ORUBY:  case OEMERALD:  case OSAPPHIRE:
+			case OBOOK:     case OCHEST:  case OLARNEYE: case ONOTHEFT:
+			case OSPIRITSCARAB:  case OCUBEofUNDEAD:
+			case OPOTION:   case OSCROLL:  break;
+			default:  count++;
+			};
+
+	t_setup(count);
+
+	for (i=22; i<84; i++)
+		 for (j=0; j<=26; j++)
+		   if (i==iven[j])
+			switch(i)
+				{
+				case ODIAMOND:  case ORUBY:  case OEMERALD:  case OSAPPHIRE:
+				case OBOOK:     case OCHEST:  case OLARNEYE: case ONOTHEFT:
+				case OSPIRITSCARAB:  case OCUBEofUNDEAD:
+				case OPOTION:   case OSCROLL:  break;
+				default:  show3(j);
+				};
+	more();		nosignal=sigsav;	t_endup(count);
+	}
+
+/*
+ *	function to show the things player can read only
+ */
+showread()
+	{
+	register int i,j,sigsav,count;
+	sigsav=nosignal;  nosignal=1; /* don't allow ^c etc */
+	srcount=0;
+
+	for (count=2,j=0; j<=26; j++)
+		switch(iven[j])
+			{
+			case OBOOK:	case OSCROLL:	count++;
+			};
+	t_setup(count);
+
+	for (i=22; i<84; i++)
+		 for (j=0; j<=26; j++)
+		   if (i==iven[j])
+			switch(i)
+				{
+				case OBOOK:	case OSCROLL:	show3(j);
+				};
+	more();		nosignal=sigsav;	t_endup(count);
+	}
+
+/*
+ *	function to show the things player can eat only
+ */
+showeat()
+	{
+	register int i,j,sigsav,count;
+	sigsav=nosignal;  nosignal=1; /* don't allow ^c etc */
+	srcount=0;
+
+	for (count=2,j=0; j<=26; j++)
+		switch(iven[j])
+			{
+			case OCOOKIE:	count++;
+			};
+	t_setup(count);
+
+	for (i=22; i<84; i++)
+		 for (j=0; j<=26; j++)
+		   if (i==iven[j])
+			switch(i)
+				{
+				case OCOOKIE:	show3(j);
+				};
+	more();		nosignal=sigsav;	t_endup(count);
+	}
+
+/*
+	function to show the things player can quaff only
+ */
+showquaff()
+	{
+	register int i,j,sigsav,count;
+	sigsav=nosignal;  nosignal=1; /* don't allow ^c etc */
+	srcount=0;
+
+	for (count=2,j=0; j<=26; j++)
+		switch(iven[j])
+			{
+			case OPOTION:	count++;
+			};
+	t_setup(count);
+
+	for (i=22; i<84; i++)
+		 for (j=0; j<=26; j++)
+		   if (i==iven[j])
+			switch(i)
+				{
+				case OPOTION:	show3(j);
+				};
+	more();		nosignal=sigsav;		t_endup(count);
+	}
+
+show1(idx,str2)
+	register int idx;
+	register char *str2[];
+	{
+	if (str2==0)  lprintf("\n%c)   %s",idx+'a',objectname[iven[idx]]);
+	else if (*str2[ivenarg[idx]]==0)  lprintf("\n%c)   %s",idx+'a',objectname[iven[idx]]);
+	else lprintf("\n%c)   %s of%s",idx+'a',objectname[iven[idx]],str2[ivenarg[idx]]);
+	}
+
+show3(index)
+	register int index;
+	{
+	switch(iven[index]) 
+		{
+		case OPOTION:	show1(index,potionname);  break;
+		case OSCROLL:	show1(index,scrollname);  break;
+
+		case OLARNEYE:		case OBOOK:			case OSPIRITSCARAB:
+		case ODIAMOND:		case ORUBY:			case OCUBEofUNDEAD:
+		case OEMERALD:		case OCHEST:		case OCOOKIE:
+		case OSAPPHIRE:		case ONOTHEFT:		show1(index,(char **)0);  break;
+
+		default:		lprintf("\n%c)   %s",index+'a',objectname[iven[index]]);
+						if (ivenarg[index]>0) lprintf(" + %d",(long)ivenarg[index]);
+						else if (ivenarg[index]<0) lprintf(" %d",(long)ivenarg[index]);
+						break;
+		}
+	if (c[WIELD]==index) lprcat(" (weapon in hand)");
+	if ((c[WEAR]==index) || (c[SHIELD]==index))  lprcat(" (being worn)");
+	if (++srcount>=22) { srcount=0; more(); clear(); }
+	}
+
+/*
+	subroutine to randomly create monsters if needed
+ */
+randmonst()
+	{
+	if (c[TIMESTOP]) return;	/*	don't make monsters if time is stopped	*/
+	if (--rmst <= 0)
+		{
+		rmst = 120 - (level<<2);  fillmonst(makemonst(level));
+		}
+	}
+
+
+/*
+	parse()
+
+	get and execute a command
+ */
+parse()
+	{
+	register int i,j,k,flag;
+	while	(1)
+		{
+		k = yylex();
+		switch(k)	/*	get the token from the input and switch on it	*/
+			{
+			case 'h':	moveplayer(4);	return;		/*	west		*/
+			case 'H':	run(4);			return;		/*	west		*/
+			case 'l':	moveplayer(2);	return;		/*	east		*/
+			case 'L':	run(2);			return;		/*	east		*/
+			case 'j':	moveplayer(1);	return;		/*	south		*/
+			case 'J':	run(1);			return;		/*	south		*/
+			case 'k':	moveplayer(3);	return;		/*	north		*/
+			case 'K':	run(3);			return;		/*	north		*/
+			case 'u':	moveplayer(5);	return;		/*	northeast	*/
+			case 'U':	run(5);			return;		/*	northeast	*/
+			case 'y':	moveplayer(6);  return;		/*	northwest	*/
+			case 'Y':	run(6);			return;		/*	northwest	*/
+			case 'n':	moveplayer(7);	return;		/*	southeast	*/
+			case 'N':	run(7);			return;		/*	southeast	*/
+			case 'b':	moveplayer(8);	return;		/*	southwest	*/
+			case 'B':	run(8);			return;		/*	southwest	*/
+
+			case '.':	if (yrepcount) viewflag=1; return;		/*	stay here		*/
+
+			case 'w':	yrepcount=0;	wield();	return;		/*	wield a weapon */
+
+			case 'W':	yrepcount=0;	wear();		return;	/*	wear armor	*/
+
+			case 'r':	yrepcount=0;
+						if (c[BLINDCOUNT]) { cursors(); lprcat("\nYou can't read anything when you're blind!"); } else
+						if (c[TIMESTOP]==0) readscr(); return;		/*	to read a scroll	*/
+
+			case 'q':	yrepcount=0;	if (c[TIMESTOP]==0) quaff();	return;	/*	quaff a potion		*/
+
+			case 'd':	yrepcount=0;	if (c[TIMESTOP]==0) dropobj(); return;	/*	to drop an object	*/
+
+			case 'c':	yrepcount=0;	cast();		return;		/*	cast a spell	*/
+
+			case 'i':	yrepcount=0;	nomove=1;  showstr();	return;		/*	status		*/
+
+			case 'e':	yrepcount=0;
+						if (c[TIMESTOP]==0) eatcookie(); return;	/*	to eat a fortune cookie */
+
+			case 'D':	yrepcount=0;	seemagic(0);	nomove=1; return;	/*	list spells and scrolls */
+
+			case '?':	yrepcount=0;	help(); nomove=1; return;	/*	give the help screen*/
+
+			case 'S':	clear();  lprcat("Saving . . ."); lflush();  
+						savegame(savefilename); wizard=1; died(-257);	/*	save the game - doesn't return	*/
+
+			case 'Z':	yrepcount=0;	if (c[LEVEL]>9) { oteleport(1); return; }
+						cursors(); lprcat("\nAs yet, you don't have enough experience to use teleportation");
+						return;	/*	teleport yourself	*/
+
+			case '^':	/* identify traps */  flag=yrepcount=0;  cursors();
+						lprc('\n');  for (j=playery-1; j<playery+2; j++)
+							{
+							if (j < 0) j=0;		if (j >= MAXY) break;
+							for (i=playerx-1; i<playerx+2; i++)
+								{
+								if (i < 0) i=0;	if (i >= MAXX) break;
+								switch(item[i][j])
+									{
+									case OTRAPDOOR:		case ODARTRAP:
+									case OTRAPARROW:	case OTELEPORTER:
+										lprcat("\nIts "); lprcat(objectname[item[i][j]]);  flag++;
+									};
+								}
+							}
+						if (flag==0) lprcat("\nNo traps are visible");
+						return;
+
+#if WIZID
+			case '_':	/*	this is the fudge player password for wizard mode*/
+						yrepcount=0;	cursors(); nomove=1;
+						if (userid!=wisid)
+							{
+							lprcat("Sorry, you are not empowered to be a wizard.\n");
+							scbr(); /* system("stty -echo cbreak"); */
+							lflush();  return;
+							}
+						if (getpassword()==0)
+							{
+							scbr(); /* system("stty -echo cbreak"); */ return;
+							}
+						wizard=1;  scbr(); /* system("stty -echo cbreak"); */
+						for (i=0; i<6; i++)  c[i]=70;  iven[0]=iven[1]=0;
+						take(OPROTRING,50);   take(OLANCE,25);  c[WIELD]=1;
+						c[LANCEDEATH]=1;   c[WEAR] = c[SHIELD] = -1;
+						raiseexperience(6000000L);  c[AWARENESS] += 25000;
+						{
+						register int i,j;
+						for (i=0; i<MAXY; i++)
+							for (j=0; j<MAXX; j++)  know[j][i]=1;
+						for (i=0; i<SPNUM; i++)	spelknow[i]=1;
+						for (i=0; i<MAXSCROLL; i++)  scrollname[i][0]=' ';
+						for (i=0; i<MAXPOTION; i++)  potionname[i][0]=' ';
+						}
+						for (i=0; i<MAXSCROLL; i++)
+						  if (strlen(scrollname[i])>2) /* no null items */
+							{ item[i][0]=OSCROLL; iarg[i][0]=i; }
+						for (i=MAXX-1; i>MAXX-1-MAXPOTION; i--)
+						  if (strlen(potionname[i-MAXX+MAXPOTION])>2) /* no null items */
+							{ item[i][0]=OPOTION; iarg[i][0]=i-MAXX+MAXPOTION; }
+						for (i=1; i<MAXY; i++)
+							{ item[0][i]=i; iarg[0][i]=0; }
+						for (i=MAXY; i<MAXY+MAXX; i++)
+							{ item[i-MAXY][MAXY-1]=i; iarg[i-MAXY][MAXY-1]=0; }
+						for (i=MAXX+MAXY; i<MAXX+MAXY+MAXY; i++)
+							{ item[MAXX-1][i-MAXX-MAXY]=i; iarg[MAXX-1][i-MAXX-MAXY]=0; }
+						c[GOLD]+=25000;	drawscreen();	return;
+#endif
+
+			case 'T':	yrepcount=0;	cursors();  if (c[SHIELD] != -1) { c[SHIELD] = -1; lprcat("\nYour shield is off"); bottomline(); } else
+										if (c[WEAR] != -1) { c[WEAR] = -1; lprcat("\nYour armor is off"); bottomline(); }
+						else lprcat("\nYou aren't wearing anything");
+						return;
+
+			case 'g':	cursors();
+						lprintf("\nThe stuff you are carrying presently weighs %d pounds",(long)packweight());
+			case ' ':	yrepcount=0;	nomove=1;  return;
+
+			case 'v':	yrepcount=0;	cursors();
+						lprintf("\nCaverns of Larn, Version %d.%d, Diff=%d",(long)VERSION,(long)SUBVERSION,(long)c[HARDGAME]);
+						if (wizard) lprcat(" Wizard"); nomove=1;
+						if (cheat) lprcat(" Cheater");
+						lprcat(copyright);
+						return;
+
+			case 'Q':	yrepcount=0;	quit(); nomove=1;	return;	/*	quit		*/
+
+			case 'L'-64:  yrepcount=0;	drawscreen();  nomove=1; return;	/*	look		*/
+
+#if WIZID
+#ifdef EXTRA
+			case 'A':	yrepcount=0;	nomove=1; if (wizard) { diag(); return; }  /*	create diagnostic file */
+						return;
+#endif
+#endif
+			case 'P':	cursors(); 
+						if (outstanding_taxes>0)
+							lprintf("\nYou presently owe %d gp in taxes.",(long)outstanding_taxes);
+						else
+							lprcat("\nYou do not owe any taxes.");
+						return;
+			};
+		}
+	}
+
+parse2()
+	{
+	if (c[HASTEMONST]) movemonst(); movemonst(); /*	move the monsters		*/
+	randmonst();	regen();
+	}
+
+run(dir)
+	int dir;
+	{
+	register int i;
+	i=1; while (i)
+		{
+		i=moveplayer(dir);
+		if (i>0) {  if (c[HASTEMONST]) movemonst();  movemonst(); randmonst(); regen(); }
+		if (hitflag) i=0;
+		if (i!=0)  showcell(playerx,playery);
+		}
+	}
+
+/*
+	function to wield a weapon
+ */
+wield()	
+	{
+	register int i;
+	while (1)
+		{
+		if ((i = whatitem("wield"))=='\33')  return;
+		if (i != '.')
+			{
+			if (i=='*') showwield();
+			else  if (iven[i-'a']==0) { ydhi(i); return; }
+			else if (iven[i-'a']==OPOTION) { ycwi(i); return; }
+			else if (iven[i-'a']==OSCROLL) { ycwi(i); return; }
+			else  if ((c[SHIELD]!= -1) && (iven[i-'a']==O2SWORD)) { lprcat("\nBut one arm is busy with your shield!"); return; }
+			else  { c[WIELD]=i-'a'; if (iven[i-'a'] == OLANCE) c[LANCEDEATH]=1; else c[LANCEDEATH]=0;  bottomline(); return; }
+			}
+		}
+	}
+
+/*
+	common routine to say you don't have an item
+ */
+ydhi(x)
+	int x;
+	{ cursors();  lprintf("\nYou don't have item %c!",x); }
+ycwi(x)
+	int x;
+	{ cursors();  lprintf("\nYou can't wield item %c!",x); }
+
+/*
+	function to wear armor
+ */
+wear()
+	{
+	register int i;
+	while (1)
+		{
+		if ((i = whatitem("wear"))=='\33')  return;
+		if (i != '.')
+			{
+			if (i=='*') showwear(); else
+			switch(iven[i-'a'])
+				{
+				case 0:  ydhi(i); return;
+				case OLEATHER:  case OCHAIN:  case OPLATE:	case OSTUDLEATHER:
+				case ORING:		case OSPLINT:	case OPLATEARMOR:	case OSSPLATE:
+						if (c[WEAR] != -1) { lprcat("\nYou're already wearing some armor"); return; }
+							c[WEAR]=i-'a';  bottomline(); return;
+				case OSHIELD:	if (c[SHIELD] != -1) { lprcat("\nYou are already wearing a shield"); return; }
+								if (iven[c[WIELD]]==O2SWORD) { lprcat("\nYour hands are busy with the two handed sword!"); return; }
+								c[SHIELD] = i-'a';  bottomline(); return;
+				default:	lprcat("\nYou can't wear that!");
+				};
+			}
+		}
+	}
+
+/*
+	function to drop an object
+ */
+dropobj()
+	{
+	register int i;
+	register char *p;
+	long amt;
+	p = &item[playerx][playery];
+	while (1)
+		{
+		if ((i = whatitem("drop"))=='\33')  return;
+		if (i=='*') showstr(); else 
+			{
+			if (i=='.')	/* drop some gold */
+				{
+				if (*p) { lprcat("\nThere's something here already!"); return; }
+				lprcat("\n\n");
+				cl_dn(1,23);
+				lprcat("How much gold do you drop? ");
+				if ((amt=readnum((long)c[GOLD])) == 0) return;
+				if (amt>c[GOLD])
+					{ lprcat("\nYou don't have that much!"); return; }
+				if (amt<=32767)
+					{ *p=OGOLDPILE; i=amt; }
+				else if (amt<=327670L)
+					{ *p=ODGOLD; i=amt/10; amt = 10*i; }
+				else if (amt<=3276700L)
+					{ *p=OMAXGOLD; i=amt/100; amt = 100*i; }
+				else if (amt<=32767000L)
+					{ *p=OKGOLD; i=amt/1000; amt = 1000*i; }
+				else
+					{ *p=OKGOLD; i=32767; amt = 32767000L; }
+				c[GOLD] -= amt; 
+				lprintf("You drop %d gold pieces",(long)amt);
+				iarg[playerx][playery]=i; bottomgold();
+				know[playerx][playery]=0; dropflag=1;  return;
+				}
+			drop_object(i-'a');
+			return;
+			}
+		}
+	}
+
+/*
+ *	readscr()		Subroutine to read a scroll one is carrying
+ */
+readscr()
+	{
+	register int i;
+	while (1)
+		{
+		if ((i = whatitem("read"))=='\33')  return;
+		if (i != '.')
+			{
+			if (i=='*') showread(); else
+				{
+				if (iven[i-'a']==OSCROLL) { read_scroll(ivenarg[i-'a']); iven[i-'a']=0; return; }
+				if (iven[i-'a']==OBOOK)   { readbook(ivenarg[i-'a']);  iven[i-'a']=0; return; }
+				if (iven[i-'a']==0) { ydhi(i); return; }
+				lprcat("\nThere's nothing on it to read");  return;
+				}
+			}
+		}
+	}
+
+/*
+ *	subroutine to eat a cookie one is carrying
+ */
+eatcookie()
+{
+register int i;
+char *p;
+while (1)
+	{
+	if ((i = whatitem("eat"))=='\33')  return;
+	if (i != '.')
+		if (i=='*') showeat(); else
+			{
+			if (iven[i-'a']==OCOOKIE)
+				{
+				lprcat("\nThe cookie was delicious.");
+				iven[i-'a']=0;
+				if (!c[BLINDCOUNT])
+					{
+					if (p=fortune(fortfile))
+						{
+						lprcat("  Inside you find a scrap of paper that says:\n");
+						lprcat(p);
+						}
+					}
+				return;
+				}
+			if (iven[i-'a']==0) { ydhi(i); return; }
+			lprcat("\nYou can't eat that!");  return;
+			}
+	}
+}
+
+/*
+ *	subroutine to quaff a potion one is carrying
+ */
+quaff()
+	{
+	register int i;
+	while (1)
+		{
+		if ((i = whatitem("quaff"))=='\33')  return;
+		if (i != '.')
+			{
+			if (i=='*') showquaff(); else
+				{
+				if (iven[i-'a']==OPOTION) { quaffpotion(ivenarg[i-'a']); iven[i-'a']=0; return; }
+				if (iven[i-'a']==0) { ydhi(i); return; }
+				lprcat("\nYou wouldn't want to quaff that, would you? ");  return;
+				}
+			}
+		}
+	}
+
+/*
+	function to ask what player wants to do
+ */
+whatitem(str)
+	char *str;
+	{
+	int i;
+	cursors();  lprintf("\nWhat do you want to %s [* for all] ? ",str);
+	i=0; while (i>'z' || (i<'a' && i!='*' && i!='\33' && i!='.')) i=getchar();
+	if (i=='\33')  lprcat(" aborted");
+	return(i);
+	}
+
+/*
+	subroutine to get a number from the player
+	and allow * to mean return amt, else return the number entered
+ */
+unsigned long readnum(mx)
+	long mx;
+	{
+	register int i;
+	register unsigned long amt=0;
+	sncbr();
+	if ((i=getchar()) == '*')  amt = mx;   /* allow him to say * for all gold */
+	else
+		while (i != '\n')
+			{
+			if (i=='\033') { scbr(); lprcat(" aborted"); return(0); }
+			if ((i <= '9') && (i >= '0') && (amt<99999999))
+				amt = amt*10+i-'0';
+			i = getchar();
+			}
+	scbr();  return(amt);
+	}
+
+#ifdef HIDEBYLINK
+/*
+ *	routine to zero every byte in a string
+ */
+szero(str)
+	register char *str;
+	{
+	while (*str)
+		*str++ = 0;
+	}
+#endif HIDEBYLINK