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//
// This file is a part of Risk by Mike Ferris.
// Copyright (C) 1997 Steve Nygard
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
//
// You may contact the author by:
// e-mail: nygard@telusplanet.net
//
#import "../Risk.h"
RCSID ("$Id: DNode.m,v 1.1.1.1 1997/12/09 07:19:16 nygard Exp $");
#import "DNode.h"
@implementation DNode
+ dNode
{
return [[[DNode alloc] init] autorelease];
}
//----------------------------------------------------------------------
- init
{
[super init];
distance = D_INFINITY;
previous = nil;
return self;
}
//----------------------------------------------------------------------
- (void) dealloc
{
[super dealloc];
}
//----------------------------------------------------------------------
- previous
{
return previous;
}
//----------------------------------------------------------------------
- (int) distance
{
return distance;
}
//----------------------------------------------------------------------
- (void) setDistance:(int)newDistance
{
distance = newDistance;
}
//----------------------------------------------------------------------
- (void) setDistance:(int)newDistance withPrevious:newPrevious
{
distance = newDistance;
previous = newPrevious;
}
//----------------------------------------------------------------------
- (void) relaxFrom:source distance:(int)x
{
int aDistance;
NSAssert (source != nil, @"Source was nil.");
aDistance = [source distance] + x;
if (distance > aDistance)
{
previous = source;
distance = aDistance;
}
}
//----------------------------------------------------------------------
- (NSString *) description
{
return [NSString stringWithFormat:@"<DNode: distance = %d>", distance];
}
@end
These are the contents of the former NiCE NeXT User Group NeXTSTEP/OpenStep software archive, currently hosted by Netfuture.ch.