games/trek/play.c

   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
  82 myreset(int v __unused)
  83 {
  84
  85         longjmp(env, 1);
  86 }
  87
  88 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 }