2.11BSD#431 - /usr/src/games/trek/main.c

   1: /*
   2:  * Copyright (c) 1980 Regents of the University of California.
   3:  * All rights reserved.  The Berkeley software License Agreement
   4:  * specifies the terms and conditions for redistribution.
   5:  */
   6: 
   7: #if !defined(lint) && defined(DOSCCS)
   8: char copyright[] =
   9: "@(#) Copyright (c) 1980 Regents of the University of California.\n\
  10:  All rights reserved.\n";
  11: 
  12: static char sccsid[] = "@(#)main.c	5.1.1 (2.11BSD GTE) 11/20/94";
  13: #endif
  14: 
  15: # include   "trek.h"
  16: # include   <stdio.h>
  17: # include   <sgtty.h>
  18: # include   <setjmp.h>
  19: 
  20: # define    PRIO        00  /* default priority */
  21: 
  22: int Mother  = 51 + (51 << 8);
  23: 
  24: /*
  25: **	 ####  #####    #    ####          #####  ####   #####  #   #
  26: **	#        #     # #   #   #           #    #   #  #      #  #
  27: **	 ###     #    #####  ####            #    ####   ###    ###
  28: **	    #    #    #   #  #  #            #    #  #   #      #  #
  29: **	####     #    #   #  #   #           #    #   #  #####  #   #
  30: **
  31: **	C version by Eric P. Allman 5/76 (U.C. Berkeley) with help
  32: **		from Jeff Poskanzer and Pete Rubinstein.
  33: **
  34: **	I also want to thank everyone here at Berkeley who
  35: **	where crazy enough to play the undebugged game.  I want to
  36: **	particularly thank Nick Whyte, who made considerable
  37: **	suggestions regarding the content of the game.  Why, I'll
  38: **	never forget the time he suggested the name for the
  39: **	"capture" command.
  40: **
  41: **	Please send comments, questions, and suggestions about this
  42: **		game to:
  43: **			Eric P. Allman
  44: **			Project INGRES
  45: **			Electronics Research Laboratory
  46: **			Cory Hall
  47: **			University of California
  48: **			Berkeley, California  94720
  49: **
  50: **	If you make ANY changes in the game, I sure would like to
  51: **	know about them.  It is sort of an ongoing project for me,
  52: **	and I very much want to put in any bug fixes and improvements
  53: **	that you might come up with.
  54: **
  55: **	FORTRASH version by Kay R. Fisher (DEC) "and countless others".
  56: **	That was adapted from the "original BASIC program" (ha!) by
  57: **		Mike Mayfield (Centerline Engineering).
  58: **
  59: **	Additional inspiration taken from FORTRAN version by
  60: **		David Matuszek and Paul Reynolds which runs on the CDC
  61: **		7600 at Lawrence Berkeley Lab, maintained there by
  62: **		Andy Davidson.  This version is also available at LLL
  63: **		and at LMSC.  In all fairness, this version was the
  64: **		major inspiration for this version of the game (trans-
  65: **		lation:  I ripped off a whole lot of code).
  66: **
  67: **	Minor other input from the "Battelle Version 7A" by Joe Miller
  68: **		(Graphics Systems Group, Battelle-Columbus Labs) and
  69: **		Ross Pavlac (Systems Programmer, Battelle Memorial
  70: **		Institute).  That version was written in December '74
  71: **		and extensively modified June '75.  It was adapted
  72: **		from the FTN version by Ron Williams of CDC Sunnyvale,
  73: **		which was adapted from the Basic version distributed
  74: **		by DEC.  It also had "neat stuff swiped" from T. T.
  75: **		Terry and Jim Korp (University of Texas), Hicks (Penn
  76: **		U.), and Rick Maus (Georgia Tech).  Unfortunately, it
  77: **		was not as readable as it could have been and so the
  78: **		translation effort was severely hampered.  None the
  79: **		less, I got the idea of inhabited starsystems from this
  80: **		version.
  81: **
  82: **	Permission is given for use, copying, and modification of
  83: **		all or part of this program and related documentation,
  84: **		provided that all reference to the authors are maintained.
  85: **
  86: **
  87: **********************************************************************
  88: **
  89: **  NOTES TO THE MAINTAINER:
  90: **
  91: **	There is a compilation option xTRACE which must be set for any
  92: **	trace information to be generated.  It is probably defined in
  93: **	the version that you get.  It can be removed, however, if you
  94: **	have trouble finding room in core.
  95: **
  96: **	Many things in trek are not as clear as they might be, but are
  97: **	done to reduce space.  I compile with the -f and -O flags.  I
  98: **	am constrained to running with non-seperated I/D space, since
  99: **	we don't have doubleing point hardware here; even if we did, I
 100: **	would like trek to be available to the large number of people
 101: **	who either have an 11/40 or do not have FP hardware.  I also
 102: **	found it desirable to make the code run reentrant, so this
 103: **	added even more space constraints.
 104: **
 105: **	I use the portable C library to do my I/O.  This is done be-
 106: **	cause I wanted the game easily transportable to other C
 107: **	implementations, and because I was too lazy to do the doubleing
 108: **	point input myself.  Little did I know.  The portable C library
 109: **	released by Bell Labs has more bugs than you would believe, so
 110: **	I ended up rewriting the whole blessed thing.  Trek excercises
 111: **	many of the bugs in it, as well as bugs in some of the section
 112: **	III UNIX routines.  We have fixed them here.  One main problem
 113: **	was a bug in alloc() that caused it to always ask for a large
 114: **	hunk of memory, which worked fine unless you were almost out,
 115: **	which I inevitably was.  If you want the code for all of this
 116: **	stuff, it is also available through me.
 117: **
 118: ***********************************************************************
 119: */
 120: 
 121: jmp_buf env;
 122: 
 123: main(argc, argv)
 124: int argc;
 125: char    **argv;
 126: {
 127:     long            vect;
 128:     /* extern FILE		*f_log; */
 129:     register char       opencode;
 130:     int         prio;
 131:     register int        ac;
 132:     register char       **av;
 133:     struct  sgttyb      argp;
 134: 
 135:     av = argv;
 136:     ac = argc;
 137:     av++;
 138:     time(&vect);
 139:     srand(vect);
 140:     opencode = 'w';
 141:     prio = PRIO;
 142:     if (gtty(1, &argp) == 0)
 143:     {
 144:         if ((argp.sg_ispeed ) < B1200)
 145:             Etc.fast++;
 146:     }
 147:     while (ac > 1 && av[0][0] == '-')
 148:     {
 149:         switch (av[0][1])
 150:         {
 151:           case 'a': /* append to log file */
 152:             opencode = 'a';
 153:             break;
 154: 
 155:           case 'f': /* set fast mode */
 156:             Etc.fast++;
 157:             break;
 158: 
 159:           case 's': /* set slow mode */
 160:             Etc.fast = 0;
 161:             break;
 162: 
 163: #		ifdef xTRACE
 164:           case 't': /* trace */
 165:             if (getuid() != Mother)
 166:                 goto badflag;
 167:             Trace++;
 168:             break;
 169: #		endif
 170: 
 171:           case 'p': /* set priority */
 172:             if (getuid() != Mother)
 173:                 goto badflag;
 174:             if (scanf(-1, &av[0][2], "%d", &prio) > 0)
 175:                 break;
 176: 
 177:           default:
 178:           badflag:
 179:             printf("Invalid option: %s\n", av[0]);
 180: 
 181:         }
 182:         ac--;
 183:         av++;
 184:     }
 185:     if (ac > 2)
 186:         syserr(0, "arg count");
 187:         /*
 188: 	if (ac > 1)
 189: 		f_log = fopen(av[0], opencode);
 190: 		*/
 191: 
 192:     printf("\n   * * *   S T A R   T R E K   * * *\n\nPress return to continue.\n");
 193: 
 194:     if (setjmp(env))
 195:     {
 196:         if ( !getynpar("Another game") )
 197:             exit(0);
 198:     }
 199:     do
 200:     {
 201:         setup();
 202:         play();
 203:     } while (getynpar("Another game"));
 204: 
 205:     fflush(stdout);
 206: }

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