.. _program_listing_file_SPlisHSPlasH_TimeStep.h:

Program Listing for File TimeStep.h
===================================

|exhale_lsh| :ref:`Return to documentation for file <file_SPlisHSPlasH_TimeStep.h>` (``SPlisHSPlasH/TimeStep.h``)

.. |exhale_lsh| unicode:: U+021B0 .. UPWARDS ARROW WITH TIP LEFTWARDS

.. code-block:: cpp

   #pragma once
   
   #include "Common.h"
   #include "ParameterObject.h"
   #include "FluidModel.h"
   #include "BoundaryModel.h"
   #include "Discregrid/discrete_grid.hpp"
   
   namespace SPH
   {
       class TimeStep : public GenParam::ParameterObject
       {
       protected:
           void clearAccelerations(const unsigned int fluidModelIndex);
   
           virtual void initParameters();
   
           void approximateNormal(Discregrid::DiscreteGrid* map, const Eigen::Vector3d &x, Eigen::Vector3d &n, const unsigned int dim);
           void computeVolumeAndBoundaryX(const unsigned int fluidModelIndex, const unsigned int i, const Vector3r &xi);
           void computeVolumeAndBoundaryX();
           void computeDensityAndGradient(const unsigned int fluidModelIndex, const unsigned int i, const Vector3r &xi);
           void computeDensityAndGradient();
   
       public:
           TimeStep();
           virtual ~TimeStep(void);
   
           void computeDensities(const unsigned int fluidModelIndex);
   
           virtual std::string getMethodName() = 0;
           virtual void step() = 0;
           virtual void reset();
   
           virtual void init();
           virtual void resize() = 0;
   
           virtual void emittedParticles(FluidModel *model, const unsigned int startIndex) {};
   
           virtual void performNeighborhoodSearchSort() {};
   
           virtual void saveState(BinaryFileWriter &binWriter) {};
           virtual void loadState(BinaryFileReader &binReader) {};
   
           virtual int getNumIterations() = 0;
   
   #ifdef USE_PERFORMANCE_OPTIMIZATION
           void precomputeValues();
   #endif
       };
   }