xref: /original-bsd/games/trek/main.c (revision 972e85c3)
1 /*
2  * Copyright (c) 1980 Regents of the University of California.
3  * All rights reserved.
4  *
5  * %sccs.include.redist.c%
6  */
7 
8 #ifndef lint
9 char copyright[] =
10 "@(#) Copyright (c) 1980 Regents of the University of California.\n\
11  All rights reserved.\n";
12 #endif /* not lint */
13 
14 #ifndef lint
15 static char sccsid[] = "@(#)main.c	5.5 (Berkeley) 06/01/90";
16 #endif /* not lint */
17 
18 # include	"trek.h"
19 # include	<stdio.h>
20 # include	<sgtty.h>
21 # define	PRIO		00	/* default priority */
22 
23 int	Mother	= 51 + (51 << 8);
24 
25 /*
26 **	 ####  #####    #    ####          #####  ####   #####  #   #
27 **	#        #     # #   #   #           #    #   #  #      #  #
28 **	 ###     #    #####  ####            #    ####   ###    ###
29 **	    #    #    #   #  #  #            #    #  #   #      #  #
30 **	####     #    #   #  #   #           #    #   #  #####  #   #
31 **
32 **	C version by Eric P. Allman 5/76 (U.C. Berkeley) with help
33 **		from Jeff Poskanzer and Pete Rubinstein.
34 **
35 **	I also want to thank everyone here at Berkeley who
36 **	where crazy enough to play the undebugged game.  I want to
37 **	particularly thank Nick Whyte, who made considerable
38 **	suggestions regarding the content of the game.  Why, I'll
39 **	never forget the time he suggested the name for the
40 **	"capture" command.
41 **
42 **	Please send comments, questions, and suggestions about this
43 **		game to:
44 **			Eric P. Allman
45 **			Project INGRES
46 **			Electronics Research Laboratory
47 **			Cory Hall
48 **			University of California
49 **			Berkeley, California  94720
50 **
51 **	If you make ANY changes in the game, I sure would like to
52 **	know about them.  It is sort of an ongoing project for me,
53 **	and I very much want to put in any bug fixes and improvements
54 **	that you might come up with.
55 **
56 **	FORTRASH version by Kay R. Fisher (DEC) "and countless others".
57 **	That was adapted from the "original BASIC program" (ha!) by
58 **		Mike Mayfield (Centerline Engineering).
59 **
60 **	Additional inspiration taken from FORTRAN version by
61 **		David Matuszek and Paul Reynolds which runs on the CDC
62 **		7600 at Lawrence Berkeley Lab, maintained there by
63 **		Andy Davidson.  This version is also available at LLL
64 **		and at LMSC.  In all fairness, this version was the
65 **		major inspiration for this version of the game (trans-
66 **		lation:  I ripped off a whole lot of code).
67 **
68 **	Minor other input from the "Battelle Version 7A" by Joe Miller
69 **		(Graphics Systems Group, Battelle-Columbus Labs) and
70 **		Ross Pavlac (Systems Programmer, Battelle Memorial
71 **		Institute).  That version was written in December '74
72 **		and extensively modified June '75.  It was adapted
73 **		from the FTN version by Ron Williams of CDC Sunnyvale,
74 **		which was adapted from the Basic version distributed
75 **		by DEC.  It also had "neat stuff swiped" from T. T.
76 **		Terry and Jim Korp (University of Texas), Hicks (Penn
77 **		U.), and Rick Maus (Georgia Tech).  Unfortunately, it
78 **		was not as readable as it could have been and so the
79 **		translation effort was severely hampered.  None the
80 **		less, I got the idea of inhabited starsystems from this
81 **		version.
82 **
83 **	Permission is given for use, copying, and modification of
84 **		all or part of this program and related documentation,
85 **		provided that all reference to the authors are maintained.
86 **
87 **
88 **********************************************************************
89 **
90 **  NOTES TO THE MAINTAINER:
91 **
92 **	There is a compilation option xTRACE which must be set for any
93 **	trace information to be generated.  It is probably defined in
94 **	the version that you get.  It can be removed, however, if you
95 **	have trouble finding room in core.
96 **
97 **	Many things in trek are not as clear as they might be, but are
98 **	done to reduce space.  I compile with the -f and -O flags.  I
99 **	am constrained to running with non-seperated I/D space, since
100 **	we don't have doubleing point hardware here; even if we did, I
101 **	would like trek to be available to the large number of people
102 **	who either have an 11/40 or do not have FP hardware.  I also
103 **	found it desirable to make the code run reentrant, so this
104 **	added even more space constraints.
105 **
106 **	I use the portable C library to do my I/O.  This is done be-
107 **	cause I wanted the game easily transportable to other C
108 **	implementations, and because I was too lazy to do the doubleing
109 **	point input myself.  Little did I know.  The portable C library
110 **	released by Bell Labs has more bugs than you would believe, so
111 **	I ended up rewriting the whole blessed thing.  Trek excercises
112 **	many of the bugs in it, as well as bugs in some of the section
113 **	III UNIX routines.  We have fixed them here.  One main problem
114 **	was a bug in alloc() that caused it to always ask for a large
115 **	hunk of memory, which worked fine unless you were almost out,
116 **	which I inevitably was.  If you want the code for all of this
117 **	stuff, it is also available through me.
118 **
119 ***********************************************************************
120 */
121 
122 main(argc, argv)
123 int	argc;
124 char	**argv;
125 {
126 	long			vect;
127 	/* extern FILE		*f_log; */
128 	register char		opencode;
129 	int			prio;
130 	register int		ac;
131 	register char		**av;
132 	struct	sgttyb		argp;
133 	int			been_here = 0;
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 	setexit();
195 	if ( been_here == 1 )
196 	{
197 		if ( !getynpar("Another game") )
198 			exit(0);
199 	}
200 	been_here = 1;
201 	do
202 	{
203 		setup();
204 		play();
205 	} while (getynpar("Another game"));
206 
207 	fflush(stdout);
208 }
209