/* * Copyright (c) 1983, 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 lintstatic char sccsid[] = "@(#)dr_4.c	8.1 (Berkeley) 5/31/93";#endif /* not lint */#include "externs.h"ungrap(from, to)register struct ship *from, *to;{	register k;	char friend;	if ((k = grappled2(from, to)) == 0)		return;	friend = capship(from)->nationality == capship(to)->nationality;	while (--k >= 0) {		if (friend || die() < 3) {			cleangrapple(from, to, 0);			makesignal(from, "ungrappling %s (%c%c)", to);		}	}}grap(from, to)register struct ship *from, *to;{	if (capship(from)->nationality != capship(to)->nationality && die() > 2)		return;	Write(W_GRAP, from, 0, to->file->index, 0, 0, 0);	Write(W_GRAP, to, 0, from->file->index, 0, 0, 0);	makesignal(from, "grappled with %s (%c%c)", to);}