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// $Id: Offsets.hh,v 1.2 2002/10/04 13:44:00 flaterco Exp $
// Offsets: storage for tide offsets.
/*
Copyright (C) 1998 David Flater.
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.
*/
class TimeOffset {
public:
Interval timeAdd;
};
class LevelOffset {
protected:
double mylevelMultiply;
public:
LevelOffset();
PredictionValue levelAdd;
double levelMultiply() const;
void levelMultiply (double in_mult); // > 0.0
};
class CombinedOffset: public TimeOffset, public LevelOffset {
public:
NullableAngle currentAngle;
};
// The only purpose of this superclass is to permit SimpleOffsets and
// HairyOffsets to be interchangeable.
class Offsets {
public:
virtual int is_simple() = 0;
};
class SimpleOffsets: public CombinedOffset, public Offsets {
public:
SimpleOffsets ();
SimpleOffsets (const CombinedOffset &co_in);
int is_simple();
};
// floodbegins and ebbbegins are not used unless it's a current location.
class HairyOffsets: public Offsets {
public:
int is_simple();
HairyOffsets();
HairyOffsets (const SimpleOffsets &s_in);
CombinedOffset max;
CombinedOffset min;
TimeOffset floodbegins;
TimeOffset ebbbegins;
};
int operator== (CombinedOffset a, CombinedOffset b);
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