play.c

早期freebsd实现

/*
 * 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. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *	This product includes software developed by the University of
 *	California, Berkeley and its contributors.
 * 4. 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.
 */

#ifndef lint
static char sccsid[] = "@(#)play.c	8.1 (Berkeley) 5/31/93";
#endif /* not lint */

# include	"trek.h"
# include	"getpar.h"
# include	<setjmp.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.
*/
extern int	abandon(), capture(), shield(), computer(), dcrept(),
		destruct(), dock(), help(), impulse(), lrscan(),
		warp(), dumpgame(), rest(), srscan(),
		myreset(), torped(), visual(), setwarp(), undock(), phaser();

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",			warp,		0,
	"p",			"hasers",		phaser,	0,
	"ram",			"",			warp,		1,
	"dump",			"",			dumpgame,	0,
	"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,
	0
};

myreset()
{
	extern jmp_buf env;

	longjmp(env, 1);
}

play()
{
	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();
	}
}