level_set_liquid_solver2.h

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// Copyright (c) 2018 Doyub Kim
//
// I am making my contributions/submissions to this project solely in my
// personal capacity and am not conveying any rights to any intellectual
// property of any third parties.
 
#ifndef INCLUDE_JET_LEVEL_SET_LIQUID_SOLVER2_H_
#define INCLUDE_JET_LEVEL_SET_LIQUID_SOLVER2_H_
 
#include <jet/grid_fluid_solver2.h>
#include <jet/level_set_solver2.h>
 
namespace jet {
 
class LevelSetLiquidSolver2 : public GridFluidSolver2 {
 public:
    class Builder;
 
    LevelSetLiquidSolver2();
 
    LevelSetLiquidSolver2(
        const Size2& resolution,
        const Vector2D& gridSpacing,
        const Vector2D& gridOrigin);
 
    virtual ~LevelSetLiquidSolver2();
 
    ScalarGrid2Ptr signedDistanceField() const;
 
    LevelSetSolver2Ptr levelSetSolver() const;
 
    void setLevelSetSolver(const LevelSetSolver2Ptr& newSolver);
 
    void setMinReinitializeDistance(double distance);
 
    void setIsGlobalCompensationEnabled(bool isEnabled);
 
    double computeVolume() const;
 
    static Builder builder();
 
 protected:
    void onBeginAdvanceTimeStep(double timeIntervalInSeconds) override;
 
    void onEndAdvanceTimeStep(double timeIntervalInSeconds) override;
 
    void computeAdvection(double timeIntervalInSeconds) override;
 
    ScalarField2Ptr fluidSdf() const override;
 
 private:
    size_t _signedDistanceFieldId;
    LevelSetSolver2Ptr _levelSetSolver;
    double _minReinitializeDistance = 10.0;
    bool _isGlobalCompensationEnabled = false;
    double _lastKnownVolume = 0.0;
 
    void reinitialize(double currentCfl);
 
    void extrapolateVelocityToAir(double currentCfl);
 
    void addVolume(double volDiff);
};
 
typedef std::shared_ptr<LevelSetLiquidSolver2> LevelSetLiquidSolver2Ptr;
 
 
class LevelSetLiquidSolver2::Builder final
    : public GridFluidSolverBuilderBase2<LevelSetLiquidSolver2::Builder> {
 public:
    LevelSetLiquidSolver2 build() const;
 
    LevelSetLiquidSolver2Ptr makeShared() const;
};
 
}  // namespace jet
 
#endif  // INCLUDE_JET_LEVEL_SET_LIQUID_SOLVER2_H_