// =========================================================================
// @author Leonardo Florez-Valencia (florez-l@javeriana.edu.co)
// =========================================================================

#include <random>
#include <cpPluginsBase/RandomNumberSource.h>

// -------------------------------------------------------------------------
cpPluginsBase::RandomNumberSource::
RandomNumberSource( )
  : Superclass( )
{
}

// -------------------------------------------------------------------------
cpPluginsBase::RandomNumberSource::
~RandomNumberSource( )
{
}

// -------------------------------------------------------------------------
void cpPluginsBase::RandomNumberSource::
 _Configure( )
{
  this->ConfigureOutValue< TReal >( "Number" );
}

// -------------------------------------------------------------------------
void cpPluginsBase::RandomNumberSource::
_GenerateData( )
{
  // Seed with a real random value, if available
  std::random_device r;
 
  // Choose a random mean between 1 and 6
  std::default_random_engine e1( r( ) );
  std::uniform_int_distribution< int > uniform_dist( 1, 6 );
  int mean = uniform_dist( e1 );
 
  // Generate a normal distribution around that mean
  std::seed_seq seed2{ r( ), r( ), r( ), r( ), r( ), r( ), r( ), r( ) }; 
  std::mt19937 e2( seed2 );
  std::normal_distribution<> normal_dist( mean, 2 );

  // Configure a random number as output
  this->SetOutValue( "Number", normal_dist( e2 ) );
}

// eof - $RCSfile$