GridForwardEulerDiffusionSolver3.h

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/*************************************************************************
> File Name: GridForwardEulerDiffusionSolver3.h
> Project Name: CubbyFlow
> Author: Chan-Ho Chris Ohk
> Purpose: 3-D grid-based forward Euler diffusion solver.
> Created Time: 2017/08/11
> Copyright (c) 2018, Chan-Ho Chris Ohk
*************************************************************************/
#ifndef CUBBYFLOW_GRID_FORWARD_EULER_DIFFUSION_SOLVER3_H
#define CUBBYFLOW_GRID_FORWARD_EULER_DIFFUSION_SOLVER3_H

#include <Core/Solver/Grid/GridDiffusionSolver3.h>

namespace CubbyFlow
{
    class GridForwardEulerDiffusionSolver3 final : public GridDiffusionSolver3
    {
    public:
        GridForwardEulerDiffusionSolver3();

        void Solve(
            const ScalarGrid3& source,
            double diffusionCoefficient,
            double timeIntervalInSeconds,
            ScalarGrid3* dest,
            const ScalarField3& boundarySDF = ConstantScalarField3(std::numeric_limits<double>::max()),
            const ScalarField3& fluidSDF = ConstantScalarField3(-std::numeric_limits<double>::max())) override;

        void Solve(
            const CollocatedVectorGrid3& source,
            double diffusionCoefficient,
            double timeIntervalInSeconds,
            CollocatedVectorGrid3* dest,
            const ScalarField3& boundarySDF = ConstantScalarField3(std::numeric_limits<double>::max()),
            const ScalarField3& fluidSDF = ConstantScalarField3(-std::numeric_limits<double>::max())) override;

        void Solve(
            const FaceCenteredGrid3& source,
            double diffusionCoefficient,
            double timeIntervalInSeconds,
            FaceCenteredGrid3* dest,
            const ScalarField3& boundarySDF = ConstantScalarField3(std::numeric_limits<double>::max()),
            const ScalarField3& fluidSDF = ConstantScalarField3(-std::numeric_limits<double>::max())) override;

    private:
        Array3<char> m_markers;

        void BuildMarkers(
            const Size3& size,
            const std::function<Vector3D(size_t, size_t, size_t)>& pos,
            const ScalarField3& boundarySDF,
            const ScalarField3& fluidSDF);
    };

    using GridForwardEulerDiffusionSolver3Ptr = std::shared_ptr<GridForwardEulerDiffusionSolver3>;
}

#endif