games/trek/play.c

   1 /*      $NetBSD: play.c,v 1.11 2009/05/24 21:44:56 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 1.11 2009/05/24 21:44:56 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
  90 myreset(int v __unused)
  91 {
  92
  93         longjmp(env, 1);
  94 }
  95
  96 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 }