xref: /netbsd/games/trek/play.c (revision bf9ec67e)
1 /*	$NetBSD: play.c,v 1.7 2001/02/05 01:12:46 christos Exp $	*/
2 
3 /*
4  * Copyright (c) 1980, 1993
5  *	The Regents of the University of California.  All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  * 3. All advertising materials mentioning features or use of this software
16  *    must display the following acknowledgement:
17  *	This product includes software developed by the University of
18  *	California, Berkeley and its contributors.
19  * 4. Neither the name of the University nor the names of its contributors
20  *    may be used to endorse or promote products derived from this software
21  *    without specific prior written permission.
22  *
23  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33  * SUCH DAMAGE.
34  */
35 
36 #include <sys/cdefs.h>
37 #ifndef lint
38 #if 0
39 static char sccsid[] = "@(#)play.c	8.1 (Berkeley) 5/31/93";
40 #else
41 __RCSID("$NetBSD: play.c,v 1.7 2001/02/05 01:12:46 christos Exp $");
42 #endif
43 #endif /* not lint */
44 
45 #include <stdio.h>
46 #include <setjmp.h>
47 #include "trek.h"
48 #include "getpar.h"
49 
50 /*
51 **  INSTRUCTION READ AND MAIN PLAY LOOP
52 **
53 **	Well folks, this is it.  Here we have the guts of the game.
54 **	This routine executes moves.  It sets up per-move variables,
55 **	gets the command, and executes the command.  After the command,
56 **	it calls events() to use up time, attack() to have Klingons
57 **	attack if the move was not free, and checkcond() to check up
58 **	on how we are doing after the move.
59 */
60 
61 extern jmp_buf env;
62 
63 const struct cvntab	Comtab[] =
64 {
65 	{ "abandon",		"",		abandon,	0 },
66 	{ "ca",			"pture",	capture,	0 },
67 	{ "cl",			"oak",		shield,		-1 },
68 	{ "c",			"omputer",	computer,	0 },
69 	{ "da",			"mages",	dcrept,		0 },
70 	{ "destruct",		"",		destruct,	0 },
71 	{ "do",			"ck",		dock,		0 },
72 	{ "help",		"",		help,		0 },
73 	{ "i",			"mpulse",	impulse,	0 },
74 	{ "l",			"rscan",	lrscan,		0 },
75 	{ "m",			"ove",		dowarp,		0 },
76 	{ "p",			"hasers",	phaser,		0 },
77 	{ "ram",		"",		dowarp,		1 },
78 	{ "dump",		"",		dumpgame,	0 },
79 	{ "r",			"est",		rest,		0 },
80 	{ "sh",			"ield",		shield,		0 },
81 	{ "s",			"rscan",	srscan,		0 },
82 	{ "st",			"atus",		srscan,		-1 },
83 	{ "terminate",		"",		myreset,	0 },
84 	{ "t",			"orpedo",	torped,		0 },
85 	{ "u",			"ndock",	undock,		0 },
86 	{ "v",			"isual",	visual,		0 },
87 	{ "w",			"arp",		setwarp,	0 },
88 	{ NULL,			NULL,		NULL,		0 }
89 };
90 
91 /*ARGSUSED*/
92 void
93 myreset(v)
94 	int v __attribute__((__unused__));
95 {
96 
97 	longjmp(env, 1);
98 }
99 
100 void
101 play()
102 {
103 	const struct cvntab		*r;
104 
105 	while (1)
106 	{
107 		Move.free = 1;
108 		Move.time = 0.0;
109 		Move.shldchg = 0;
110 		Move.newquad = 0;
111 		Move.resting = 0;
112 		skiptonl(0);
113 		r = getcodpar("\nCommand", Comtab);
114 		(*r->value)(r->value2);
115 		events(0);
116 		attack(0);
117 		checkcond();
118 	}
119 }
120