root/games/trek/play.c
/*      $OpenBSD: play.c,v 1.8 2017/05/26 19:19:23 tedu Exp $   */
/*      $NetBSD: play.c,v 1.3 1995/04/22 10:59:18 cgd Exp $     */

/*
 * Copyright (c) 1980, 1993
 *      The Regents of the University of California.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#include <setjmp.h>
#include <stdio.h>

#include "getpar.h"
#include "trek.h"

/*
**  INSTRUCTION READ AND MAIN PLAY LOOP
**
**      Well folks, this is it.  Here we have the guts of the game.
**      This routine executes moves.  It sets up per-move variables,
**      gets the command, and executes the command.  After the command,
**      it calls events() to use up time, attack() to have Klingons
**      attack if the move was not free, and checkcond() to check up
**      on how we are doing after the move.
*/

const struct cvntab     Comtab[] =
{
        { "abandon",            "",             abandon,        0 },
        { "ca",                 "pture",        capture,        0 },
        { "cl",                 "oak",          shield,         -1 },
        { "c",                  "omputer",      computer,       0 },
        { "da",                 "mages",        dcrept,         0 },
        { "destruct",           "",             destruct,       0 },
        { "do",                 "ck",           dock,           0 },
        { "help",               "",             help,           0 },
        { "i",                  "mpulse",       impulse,        0 },
        { "l",                  "rscan",        lrscan,         0 },
        { "m",                  "ove",          dowarp,         0 },
        { "p",                  "hasers",       phaser,         0 },
        { "ram",                "",             dowarp,         1 },
        { "r",                  "est",          rest,           0 },
        { "sh",                 "ield",         shield,         0 },
        { "s",                  "rscan",        srscan,         0 },
        { "st",                 "atus",         srscan,         -1 },
        { "terminate",          "",             myreset,        0 },
        { "t",                  "orpedo",       torped,         0 },
        { "u",                  "ndock",        undock,         0 },
        { "v",                  "isual",        visual,         0 },
        { "w",                  "arp",          setwarp,        0 },
        { NULL,                 NULL,           NULL,           0 }
};

void
myreset(int v)
{
        extern jmp_buf env;

        longjmp(env, 1);
}

void
play(void)
{
        const struct cvntab     *r;

        while (1)
        {
                Move.free = 1;
                Move.time = 0.0;
                Move.shldchg = 0;
                Move.newquad = 0;
                Move.resting = 0;
                skiptonl(0);
                r = getcodpar("\nCommand", Comtab);
                (*r->value)(r->value2);
                events(0);
                attack(0);
                checkcond();
        }
}