/*
 * Copyright (c) 1983 Regents of the University of California.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms are permitted
 * provided that the above copyright notice and this paragraph are
 * duplicated in all such forms and that any documentation,
 * advertising materials, and other materials related to such
 * distribution and use acknowledge that the software was developed
 * by the University of California, Berkeley.  The name of the
 * University may not be used to endorse or promote products derived
 * from this software without specific prior written permission.
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
 * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 */

#ifndef lint
static char sccsid[] = "@(#)dr_4.c	5.3 (Berkeley) 6/18/88";
#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);
}