.. _program_listing_file_SPlisHSPlasH_PBF_SimulationDataPBF.cpp:

Program Listing for File SimulationDataPBF.cpp
==============================================

|exhale_lsh| :ref:`Return to documentation for file <file_SPlisHSPlasH_PBF_SimulationDataPBF.cpp>` (``SPlisHSPlasH/PBF/SimulationDataPBF.cpp``)

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

.. code-block:: cpp

   #include "SimulationDataPBF.h"
   #include "SPlisHSPlasH/SPHKernels.h"
   #include "SPlisHSPlasH/Simulation.h"
   
   using namespace SPH;
   
   SimulationDataPBF::SimulationDataPBF() :
       m_deltaX(), 
       m_lambda(), 
       m_lastX(),
       m_oldX()
   {
   }
   
   SimulationDataPBF::~SimulationDataPBF(void)
   {
       cleanup();
   }
   
   void SimulationDataPBF::init()
   {
       Simulation *sim = Simulation::getCurrent();
       const unsigned int nModels = sim->numberOfFluidModels();
   
       m_lambda.resize(nModels);
       m_deltaX.resize(nModels);
       m_oldX.resize(nModels);
       m_lastX.resize(nModels);
       for (unsigned int i = 0; i < nModels; i++)
       {
           FluidModel *fm = sim->getFluidModel(i);
           m_lambda[i].resize(fm->numParticles(), 0.0);
           m_deltaX[i].resize(fm->numParticles(), Vector3r::Zero());
           m_oldX[i].resize(fm->numParticles(), Vector3r::Zero());
           m_lastX[i].resize(fm->numParticles(), Vector3r::Zero());
       }
       reset();
   }
   
   void SimulationDataPBF::cleanup()
   {
       Simulation *sim = Simulation::getCurrent();
       const unsigned int nModels = sim->numberOfFluidModels();
   
       for (unsigned int i = 0; i < nModels; i++)
       {
           m_lambda[i].clear();
           m_deltaX[i].clear();
           m_oldX[i].clear();
           m_lastX[i].clear();
       }
       m_lambda.clear();
       m_deltaX.clear();
       m_oldX.clear();
       m_lastX.clear();
   }
   
   void SimulationDataPBF::reset()
   {
       Simulation *sim = Simulation::getCurrent();
       const unsigned int nModels = sim->numberOfFluidModels();
   
       for (unsigned int i = 0; i < nModels; i++)
       {
           FluidModel *fm = sim->getFluidModel(i);
           for (unsigned int j = 0; j < fm->numParticles(); j++)
           {
               m_deltaX[i][j].setZero();
               m_lambda[i][j] = 0.0;
               getLastPosition(i, j) = fm->getPosition(j);
               getOldPosition(i, j) = fm->getPosition(j);
           }
       }
   }
   
   void SimulationDataPBF::performNeighborhoodSearchSort()
   {
       Simulation *sim = Simulation::getCurrent();
       const unsigned int nModels = sim->numberOfFluidModels();
   
       for (unsigned int i = 0; i < nModels; i++)
       {
           FluidModel *fm = sim->getFluidModel(i);
           const unsigned int numPart = fm->numActiveParticles();
           if (numPart != 0)
           {
               auto const& d = sim->getNeighborhoodSearch()->point_set(fm->getPointSetIndex());
               d.sort_field(&m_lambda[i][0]);
               d.sort_field(&m_deltaX[i][0]);
               d.sort_field(&m_oldX[i][0]);
               d.sort_field(&m_lastX[i][0]);
           }
       }
   }
   
   void SimulationDataPBF::emittedParticles(FluidModel *model, const unsigned int startIndex)
   {
       // initialize lastX values for new particles
       const unsigned int fluidModelIndex = model->getPointSetIndex();
       for (unsigned int j = startIndex; j < model->numActiveParticles(); j++)
       {
           m_lastX[fluidModelIndex][j] = model->getPosition(j);
       }
   }