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/* Copyright 2020 David Grote
*
* This file is part of WarpX.
*
* License: BSD-3-Clause-LBNL
*/
#include "CollisionHandler.H"
#include "BinaryCollision.H"
#include "PairWiseCoulombCollisionFunc.H"
#include "BackgroundMCCCollision.H"
#include <AMReX_ParmParse.H>
#include <vector>
CollisionHandler::CollisionHandler()
{
// Read in collision input
amrex::ParmParse pp_collisions("collisions");
pp_collisions.queryarr("collision_names", collision_names);
// Create instances based on the collision type
auto const ncollisions = collision_names.size();
collision_types.resize(ncollisions);
allcollisions.resize(ncollisions);
for (int i = 0; i < static_cast<int>(ncollisions); ++i) {
amrex::ParmParse pp_collision_name(collision_names[i]);
// For legacy, pairwisecoulomb is the default
std::string type = "pairwisecoulomb";
pp_collision_name.query("type", type);
collision_types[i] = type;
if (type == "pairwisecoulomb") {
allcollisions[i] =
std::make_unique<BinaryCollision<PairWiseCoulombCollisionFunc>>(collision_names[i]);
}
else if (type == "background_mcc") {
allcollisions[i] = std::make_unique<BackgroundMCCCollision>(collision_names[i]);
}
else{
amrex::Abort("Unknown collision type.");
}
}
}
/** Perform all collisions
*
* @param cur_time Current time
* @param mypc MultiParticleContainer calling this method
*
*/
void CollisionHandler::doCollisions ( amrex::Real cur_time, MultiParticleContainer* mypc)
{
for (auto& collision : allcollisions) {
collision->doCollisions(cur_time, mypc);
}
}
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