xref: /original-bsd/games/trek/main.c (revision 7e7b101a)
1 #ifndef lint
2 static char sccsid[] = "@(#)main.c	4.2	(Berkeley)	05/27/83";
3 #endif not lint
4 
5 # include	"trek.h"
6 # include	<stdio.h>
7 # include	<sgtty.h>
8 # define	PRIO		00	/* default priority */
9 
10 int	Mother	= 51 + (51 << 8);
11 
12 /*
13 **	 ####  #####    #    ####          #####  ####   #####  #   #
14 **	#        #     # #   #   #           #    #   #  #      #  #
15 **	 ###     #    #####  ####            #    ####   ###    ###
16 **	    #    #    #   #  #  #            #    #  #   #      #  #
17 **	####     #    #   #  #   #           #    #   #  #####  #   #
18 **
19 **	C version by Eric P. Allman 5/76 (U.C. Berkeley) with help
20 **		from Jeff Poskanzer and Pete Rubinstein.
21 **
22 **	I also want to thank everyone here at Berkeley who
23 **	where crazy enough to play the undebugged game.  I want to
24 **	particularly thank Nick Whyte, who made considerable
25 **	suggestions regarding the content of the game.  Why, I'll
26 **	never forget the time he suggested the name for the
27 **	"capture" command.
28 **
29 **	Please send comments, questions, and suggestions about this
30 **		game to:
31 **			Eric P. Allman
32 **			Project INGRES
33 **			Electronics Research Laboratory
34 **			Cory Hall
35 **			University of California
36 **			Berkeley, California  94720
37 **
38 **	If you make ANY changes in the game, I sure would like to
39 **	know about them.  It is sort of an ongoing project for me,
40 **	and I very much want to put in any bug fixes and improvements
41 **	that you might come up with.
42 **
43 **	FORTRASH version by Kay R. Fisher (DEC) "and countless others".
44 **	That was adapted from the "original BASIC program" (ha!) by
45 **		Mike Mayfield (Centerline Engineering).
46 **
47 **	Additional inspiration taken from FORTRAN version by
48 **		David Matuszek and Paul Reynolds which runs on the CDC
49 **		7600 at Lawrence Berkeley Lab, maintained there by
50 **		Andy Davidson.  This version is also available at LLL
51 **		and at LMSC.  In all fairness, this version was the
52 **		major inspiration for this version of the game (trans-
53 **		lation:  I ripped off a whole lot of code).
54 **
55 **	Minor other input from the "Battelle Version 7A" by Joe Miller
56 **		(Graphics Systems Group, Battelle-Columbus Labs) and
57 **		Ross Pavlac (Systems Programmer, Battelle Memorial
58 **		Institute).  That version was written in December '74
59 **		and extensively modified June '75.  It was adapted
60 **		from the FTN version by Ron Williams of CDC Sunnyvale,
61 **		which was adapted from the Basic version distributed
62 **		by DEC.  It also had "neat stuff swiped" from T. T.
63 **		Terry and Jim Korp (University of Texas), Hicks (Penn
64 **		U.), and Rick Maus (Georgia Tech).  Unfortunately, it
65 **		was not as readable as it could have been and so the
66 **		translation effort was severely hampered.  None the
67 **		less, I got the idea of inhabited starsystems from this
68 **		version.
69 **
70 **	Permission is given for use, copying, and modification of
71 **		all or part of this program and related documentation,
72 **		provided that all reference to the authors are maintained.
73 **
74 **
75 **********************************************************************
76 **
77 **  NOTES TO THE MAINTAINER:
78 **
79 **	There is a compilation option xTRACE which must be set for any
80 **	trace information to be generated.  It is probably defined in
81 **	the version that you get.  It can be removed, however, if you
82 **	have trouble finding room in core.
83 **
84 **	Many things in trek are not as clear as they might be, but are
85 **	done to reduce space.  I compile with the -f and -O flags.  I
86 **	am constrained to running with non-seperated I/D space, since
87 **	we don't have doubleing point hardware here; even if we did, I
88 **	would like trek to be available to the large number of people
89 **	who either have an 11/40 or do not have FP hardware.  I also
90 **	found it desirable to make the code run reentrant, so this
91 **	added even more space constraints.
92 **
93 **	I use the portable C library to do my I/O.  This is done be-
94 **	cause I wanted the game easily transportable to other C
95 **	implementations, and because I was too lazy to do the doubleing
96 **	point input myself.  Little did I know.  The portable C library
97 **	released by Bell Labs has more bugs than you would believe, so
98 **	I ended up rewriting the whole blessed thing.  Trek excercises
99 **	many of the bugs in it, as well as bugs in some of the section
100 **	III UNIX routines.  We have fixed them here.  One main problem
101 **	was a bug in alloc() that caused it to always ask for a large
102 **	hunk of memory, which worked fine unless you were almost out,
103 **	which I inevitably was.  If you want the code for all of this
104 **	stuff, it is also available through me.
105 **
106 ***********************************************************************
107 */
108 
109 main(argc, argv)
110 int	argc;
111 char	**argv;
112 {
113 	long			vect;
114 	/* extern FILE		*f_log; */
115 	register char		opencode;
116 	int			prio;
117 	register int		ac;
118 	register char		**av;
119 	struct	sgttyb		argp;
120 	int			been_here = 0;
121 
122 	av = argv;
123 	ac = argc;
124 	av++;
125 	time(&vect);
126 	srand(vect);
127 	opencode = 'w';
128 	prio = PRIO;
129 	if (gtty(1, &argp) == 0)
130 	{
131 		if ((argp.sg_ispeed ) < B1200)
132 			Etc.fast++;
133 	}
134 	while (ac > 1 && av[0][0] == '-')
135 	{
136 		switch (av[0][1])
137 		{
138 		  case 'a':	/* append to log file */
139 			opencode = 'a';
140 			break;
141 
142 		  case 'f':	/* set fast mode */
143 			Etc.fast++;
144 			break;
145 
146 		  case 's':	/* set slow mode */
147 			Etc.fast = 0;
148 			break;
149 
150 #		ifdef xTRACE
151 		  case 't':	/* trace */
152 			if (getuid() != Mother)
153 				goto badflag;
154 			Trace++;
155 			break;
156 #		endif
157 
158 		  case 'p':	/* set priority */
159 			if (getuid() != Mother)
160 				goto badflag;
161 			if (scanf(-1, &av[0][2], "%d", &prio) > 0)
162 				break;
163 
164 		  default:
165 		  badflag:
166 			printf("Invalid option: %s\n", av[0]);
167 
168 		}
169 		ac--;
170 		av++;
171 	}
172 	if (ac > 2)
173 		syserr(0, "arg count");
174 		/*
175 	if (ac > 1)
176 		f_log = fopen(av[0], opencode);
177 		*/
178 
179 	printf("\n   * * *   S T A R   T R E K   * * *\n\n");
180 
181 	play_with(stdin);
182 	ungetc('\n',stdin);
183 	setexit();
184 	if ( been_here == 1 )
185 	{
186 		if ( !getynpar("Another game") )
187 			exit(0);
188 	}
189 	been_here = 1;
190 	do
191 	{
192 		setup();
193 		play();
194 	} while (getynpar("Another game"));
195 
196 	fflush(stdout);
197 }
198 
199 play_with(iop)
200 register	FILE	*iop;
201 {
202 	extern	char	_sibuf[];
203 
204 	iop->_cnt = 0;
205 	iop->_base = _sibuf;
206 	iop->_ptr = iop->_base;
207 	iop->_bufsiz = BUFSIZ;
208 }
209