#include "openmc/physics_common.h"

#include "openmc/random_lcg.h"

#include "openmc/settings.h"

namespace openmc {

//==============================================================================

// RUSSIAN_ROULETTE

//==============================================================================

void russian_roulette(Particle& p, double weight_survive)

{

if (weight_survive * prn(p.current_seed()) < p.wgt()) {

p.wgt() = weight_survive;

} else {

p.wgt() = 0.;

}

}

} // namespace openmc