1 /* $NetBSD: play.c,v 1.12 2009/08/12 08:54:54 dholland 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. Neither the name of the University nor the names of its contributors
16 * may be used to endorse or promote products derived from this software
17 * without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 */
31
32 #include <sys/cdefs.h>
33 #ifndef lint
34 #if 0
35 static char sccsid[] = "@(#)play.c 8.1 (Berkeley) 5/31/93";
36 #else
37 __RCSID("$NetBSD: play.c,v 1.12 2009/08/12 08:54:54 dholland Exp $");
38 #endif
39 #endif /* not lint */
40
41 #include <stdio.h>
42 #include <setjmp.h>
43 #include "trek.h"
44 #include "getpar.h"
45
46 static void myreset(int) __dead;
47
48 /*
49 ** INSTRUCTION READ AND MAIN PLAY LOOP
50 **
51 ** Well folks, this is it. Here we have the guts of the game.
52 ** This routine executes moves. It sets up per-move variables,
53 ** gets the command, and executes the command. After the command,
54 ** it calls events() to use up time, attack() to have Klingons
55 ** attack if the move was not free, and checkcond() to check up
56 ** on how we are doing after the move.
57 */
58
59 extern jmp_buf env;
60
61 static const struct cvntab Comtab[] = {
62 { "abandon", "", abandon, 0 },
63 { "ca", "pture", capture, 0 },
64 { "cl", "oak", shield, -1 },
65 { "c", "omputer", computer, 0 },
66 { "da", "mages", dcrept, 0 },
67 { "destruct", "", destruct, 0 },
68 { "do", "ck", dock, 0 },
69 { "help", "", help, 0 },
70 { "i", "mpulse", impulse, 0 },
71 { "l", "rscan", lrscan, 0 },
72 { "m", "ove", dowarp, 0 },
73 { "p", "hasers", phaser, 0 },
74 { "ram", "", dowarp, 1 },
75 { "dump", "", dumpgame, 0 },
76 { "r", "est", rest, 0 },
77 { "sh", "ield", shield, 0 },
78 { "s", "rscan", srscan, 0 },
79 { "st", "atus", srscan, -1 },
80 { "terminate", "", myreset, 0 },
81 { "t", "orpedo", torped, 0 },
82 { "u", "ndock", undock, 0 },
83 { "v", "isual", visual, 0 },
84 { "w", "arp", setwarp, 0 },
85 { NULL, NULL, NULL, 0 }
86 };
87
88 /*ARGSUSED*/
89 static void
myreset(int v __unused)90 myreset(int v __unused)
91 {
92
93 longjmp(env, 1);
94 }
95
96 void
play(void)97 play(void)
98 {
99 const struct cvntab *r;
100
101 while (1) {
102 Move.free = 1;
103 Move.time = 0.0;
104 Move.shldchg = 0;
105 Move.newquad = 0;
106 Move.resting = 0;
107 skiptonl(0);
108 r = getcodpar("\nCommand", Comtab);
109 (*r->value)(r->value2);
110 events(0);
111 attack(0);
112 checkcond();
113 }
114 }
115