TimeState.H

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/*---------------------------------------------------------------------------*\
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    Copyright (C) 2011-2016 OpenFOAM Foundation
    Copyright (C) 2018-2023 OpenCFD Ltd.
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License
    This file is part of OpenFOAM.
 
    OpenFOAM 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 3 of the License, or
    (at your option) any later version.
 
    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
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    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 OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
 
Class
    Foam::TimeState
 
Description
    The time value with time-stepping information, user-defined remapping, etc.
 
SourceFiles
    TimeState.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef Foam_TimeState_H
#define Foam_TimeState_H
 
#include "dimensionedScalar.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
/*---------------------------------------------------------------------------*\
                           Class TimeState Declaration
\*---------------------------------------------------------------------------*/
 
class TimeState
:
    public dimensionedScalar
{
    // Private Member Functions
 
        // //- Dimensions for 1/time
        // inline static dimensionSet dimInvTime()
        // {
        //     return dimensionSet(0, 0, -1, 0, 0, 0, 0);
        // }
 
 
protected:
 
    // Protected Data
 
        label timeIndex_;
        label writeTimeIndex_;
 
        scalar deltaT_;
        scalar deltaT0_;
        scalar deltaTSave_;
 
        bool deltaTchanged_;
        bool writeTime_;
 
 
    // Protected Member Functions
 
        //- Reset some of TimeState (name, value, index)
        void resetTimeState
        (
            const word& newName,
            const scalar newValue,
            const label newIndex
        )
        {
            dimensionedScalar::name() = newName;
            dimensionedScalar::value() = newValue;
            timeIndex_ = newIndex;
        }
 
 
public:
 
    // Constructors
 
        //- Construct a zero time state, using the current time formatting
        TimeState();
 
 
    //- Destructor
    virtual ~TimeState() = default;
 
 
    // Member Functions
 
    // Conversion
 
        //- Convert the user-time (e.g. CA deg) to real-time (s).
        virtual scalar userTimeToTime(const scalar theta) const;
 
        //- Convert the real-time (s) into user-time (e.g. CA deg)
        virtual scalar timeToUserTime(const scalar t) const;
 
 
    // Access
 
        //- Return the current user-time value.
        //- (ie, after applying any timeToUserTime() conversion)
        inline scalar timeOutputValue() const;
 
        //- Return the current time name
        inline const word& timeName() const noexcept;
 
        //- Return the current time index
        inline label timeIndex() const noexcept;
 
        //- Return time step value
        inline scalar deltaTValue() const noexcept;
 
        //- Return old time step value
        inline scalar deltaT0Value() const noexcept;
 
        //- Return time step
        inline dimensionedScalar deltaT() const;
 
        //- Return old time step
        inline dimensionedScalar deltaT0() const;
 
        //- True if this is a write interval
        inline bool writeTime() const noexcept;
 
 
    // Housekeeping
 
        //- Deprecated(2016-05) return true if this is a write time.
        //  \deprecated(2016-05) - use writeTime() method
        bool outputTime() const noexcept { return this->writeTime(); }
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#include "TimeStateI.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //