VRandomSampler.h

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#ifndef _utl_VRandomSampler_h_
#define _utl_VRandomSampler_h_

#include <utl/config.h>
#include <CLHEP/Random/Random.h>

typedef CLHEP::HepRandomEngine HepEngine;


namespace utl {

  class VRandomSampler {

  public:
    virtual ~VRandomSampler() { }

    double shoot(HepEngine& engine) const
    { return MapRandom(engine.flat()); }

    void
    shootArray(HepEngine& engine, const unsigned int size, double* const vect)
      const
    {
      double rand[size];
      engine.flatArray(size, rand);
      for (unsigned int i = 0; i < size; ++i)
        vect[i] = MapRandom(rand[i]);
    }

  protected:
    virtual double MapRandom(const double rand) const = 0;

  };

}


#endif

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