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      1  1.15  dholland /*	$NetBSD: dr_4.c,v 1.15 2009/03/14 22:52:52 dholland Exp $	*/
      2   1.3       cgd 
      3   1.1       cgd /*
      4   1.3       cgd  * Copyright (c) 1983, 1993
      5   1.3       cgd  *	The Regents of the University of California.  All rights reserved.
      6   1.1       cgd  *
      7   1.1       cgd  * Redistribution and use in source and binary forms, with or without
      8   1.1       cgd  * modification, are permitted provided that the following conditions
      9   1.1       cgd  * are met:
     10   1.1       cgd  * 1. Redistributions of source code must retain the above copyright
     11   1.1       cgd  *    notice, this list of conditions and the following disclaimer.
     12   1.1       cgd  * 2. Redistributions in binary form must reproduce the above copyright
     13   1.1       cgd  *    notice, this list of conditions and the following disclaimer in the
     14   1.1       cgd  *    documentation and/or other materials provided with the distribution.
     15  1.13       agc  * 3. Neither the name of the University nor the names of its contributors
     16   1.1       cgd  *    may be used to endorse or promote products derived from this software
     17   1.1       cgd  *    without specific prior written permission.
     18   1.1       cgd  *
     19   1.1       cgd  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     20   1.1       cgd  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     21   1.1       cgd  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     22   1.1       cgd  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     23   1.1       cgd  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     24   1.1       cgd  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     25   1.1       cgd  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     26   1.1       cgd  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     27   1.1       cgd  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     28   1.1       cgd  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     29   1.1       cgd  * SUCH DAMAGE.
     30   1.1       cgd  */
     31   1.1       cgd 
     32   1.5  christos #include <sys/cdefs.h>
     33   1.1       cgd #ifndef lint
     34   1.3       cgd #if 0
     35   1.4       tls static char sccsid[] = "@(#)dr_4.c	8.2 (Berkeley) 4/28/95";
     36   1.3       cgd #else
     37  1.15  dholland __RCSID("$NetBSD: dr_4.c,v 1.15 2009/03/14 22:52:52 dholland Exp $");
     38   1.3       cgd #endif
     39   1.1       cgd #endif /* not lint */
     40   1.1       cgd 
     41  1.11     jwise #include <stdlib.h>
     42   1.4       tls #include "extern.h"
     43   1.1       cgd 
     44   1.5  christos void
     45   1.9     jwise ungrap(struct ship *from, struct ship *to)
     46   1.1       cgd {
     47   1.5  christos 	int k;
     48   1.1       cgd 	char friend;
     49   1.1       cgd 
     50   1.1       cgd 	if ((k = grappled2(from, to)) == 0)
     51   1.1       cgd 		return;
     52   1.1       cgd 	friend = capship(from)->nationality == capship(to)->nationality;
     53   1.1       cgd 	while (--k >= 0) {
     54   1.8     jwise 		if (friend || dieroll() < 3) {
     55   1.1       cgd 			cleangrapple(from, to, 0);
     56   1.6  christos 			makesignal(from, "ungrappling $$", to);
     57   1.1       cgd 		}
     58   1.1       cgd 	}
     59   1.1       cgd }
     60   1.1       cgd 
     61   1.5  christos void
     62   1.9     jwise grap(struct ship *from, struct ship *to)
     63   1.1       cgd {
     64  1.14  dholland 	if (capship(from)->nationality != capship(to)->nationality &&
     65  1.14  dholland 	    dieroll() > 2)
     66   1.1       cgd 		return;
     67  1.15  dholland 	send_grap(from, to->file->index);
     68  1.15  dholland 	send_grap(to, from->file->index);
     69   1.6  christos 	makesignal(from, "grappled with $$", to);
     70   1.1       cgd }
     71