games/trek/play.c

   1 /*
   2  * Copyright (c) 1980, 1993
   3  *      The Regents of the University of California.  All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  * 3. All advertising materials mentioning features or use of this software
  14  *    must display the following acknowledgement:
  15  *      This product includes software developed by the University of
  16  *      California, Berkeley and its contributors.
  17  * 4. Neither the name of the University nor the names of its contributors
  18  *    may be used to endorse or promote products derived from this software
  19  *    without specific prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  31  * SUCH DAMAGE.
  32  *
  33  * @(#)play.c   8.1 (Berkeley) 5/31/93
  34  * $FreeBSD: src/games/trek/play.c,v 1.2 1999/11/30 03:49:52 billf Exp $
  35  * $DragonFly: src/games/trek/play.c,v 1.3 2006/09/07 21:19:44 pavalos Exp $
  36  */
  37
  38 # include       "trek.h"
  39 # include       "getpar.h"
  40
  41 static void     myreset(int);
  42 /*
  43 **  INSTRUCTION READ AND MAIN PLAY LOOP
  44 **
  45 **      Well folks, this is it.  Here we have the guts of the game.
  46 **      This routine executes moves.  It sets up per-move variables,
  47 **      gets the command, and executes the command.  After the command,
  48 **      it calls events() to use up time, attack() to have Klingons
  49 **      attack if the move was not free, and checkcond() to check up
  50 **      on how we are doing after the move.
  51 */
  52
  53 struct cvntab   Comtab[] =
  54 {
  55         { "abandon",            "",                     abandon,        0 },
  56         { "ca",                 "pture",                capture,        0 },
  57         { "cl",                 "oak",                  shield,         -1 },
  58         { "c",                  "omputer",              computer,       0 },
  59         { "da",                 "mages",                dcrept,         0 },
  60         { "destruct",           "",                     destruct,       0 },
  61         { "do",                 "ck",                   dock,           0 },
  62         { "help",               "",                     help,           0 },
  63         { "i",                  "mpulse",               impulse,        0 },
  64         { "l",                  "rscan",                lrscan,         0 },
  65         { "m",                  "ove",                  dowarp,         0 },
  66         { "p",                  "hasers",               phaser,         0 },
  67         { "ram",                "",                     dowarp,         1 },
  68         { "dump",               "",                     dumpgame,       0 },
  69         { "r",                  "est",                  rest,           0 },
  70         { "sh",                 "ield",                 shield,         0 },
  71         { "s",                  "rscan",                srscan,         0 },
  72         { "st",                 "atus",                 srscan,         -1 },
  73         { "terminate",          "",                     myreset,        0 },
  74         { "t",                  "orpedo",               torped,         0 },
  75         { "u",                  "ndock",                undock,         0 },
  76         { "v",                  "isual",                visual,         0 },
  77         { "w",                  "arp",                  setwarp,        0 },
  78         { NULL,                 NULL,                   NULL,           0 }
  79 };
  80
  81 static void
  82 myreset(__unused int unused)
  83 {
  84         longjmp(env, 1);
  85 }
  86
  87 void
  88 play(void)
  89 {
  90         struct cvntab           *r;
  91
  92         while (1)
  93         {
  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 }