1 /* @(#)play.c 8.1 (Berkeley) 5/31/93 */
2 /* $NetBSD: play.c,v 1.12 2009/08/12 08:54:54 dholland Exp $ */
3
4 /*
5 * Copyright (c) 1980, 1993
6 * The Regents of the University of California. All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. Neither the name of the University nor the names of its contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 */
32
33 #include <stdio.h>
34 #include <setjmp.h>
35 #include "trek.h"
36 #include "getpar.h"
37
38 static void myreset(int) __dead2;
39
40 /*
41 ** INSTRUCTION READ AND MAIN PLAY LOOP
42 **
43 ** Well folks, this is it. Here we have the guts of the game.
44 ** This routine executes moves. It sets up per-move variables,
45 ** gets the command, and executes the command. After the command,
46 ** it calls events() to use up time, attack() to have Klingons
47 ** attack if the move was not free, and checkcond() to check up
48 ** on how we are doing after the move.
49 */
50
51 extern jmp_buf env;
52
53 static const struct cvntab Comtab[] = {
54 { "abandon", "", abandon, 0 },
55 { "ca", "pture", capture, 0 },
56 { "cl", "oak", shield, -1 },
57 { "c", "omputer", computer, 0 },
58 { "da", "mages", dcrept, 0 },
59 { "destruct", "", destruct, 0 },
60 { "do", "ck", dock, 0 },
61 { "help", "", help, 0 },
62 { "i", "mpulse", impulse, 0 },
63 { "l", "rscan", lrscan, 0 },
64 { "m", "ove", dowarp, 0 },
65 { "p", "hasers", phaser, 0 },
66 { "ram", "", dowarp, 1 },
67 { "dump", "", dumpgame, 0 },
68 { "r", "est", rest, 0 },
69 { "sh", "ield", shield, 0 },
70 { "s", "rscan", srscan, 0 },
71 { "st", "atus", srscan, -1 },
72 { "terminate", "", myreset, 0 },
73 { "t", "orpedo", torped, 0 },
74 { "u", "ndock", undock, 0 },
75 { "v", "isual", visual, 0 },
76 { "w", "arp", setwarp, 0 },
77 { NULL, NULL, NULL, 0 }
78 };
79
80 /*ARGSUSED*/
81 static void
myreset(int v __unused)82 myreset(int v __unused)
83 {
84
85 longjmp(env, 1);
86 }
87
88 void
play(void)89 play(void)
90 {
91 const struct cvntab *r;
92
93 while (1) {
94 Move.free = 1;
95 Move.time = 0.0;
96 Move.shldchg = 0;
97 Move.newquad = 0;
98 Move.resting = 0;
99 skiptonl(0);
100 r = getcodpar("\nCommand", Comtab);
101 (*r->value)(r->value2);
102 events(0);
103 attack(0);
104 checkcond();
105 }
106 }
107