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//
/// file: SphericalChromosome.cc
/// brief: Implementation of virt chromosome class for Spherical chromosomes

#include <utility>

#include "SphericalChromosome.hh"
#include "Randomize.hh"
#include "G4RandomDirection.hh"

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const G4String SphericalChromosome::fShape = "sphere";

SphericalChromosome::SphericalChromosome(const G4String& name,
                                         const G4ThreeVector& pos,
                                         const G4double& radius)
  : VirtualChromosome(name)
  , fCenter(pos)
  , fRadius(radius)
  , fRotation(G4RotationMatrix())
{
  fInverseRotation = fRotation.inverse();
}

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SphericalChromosome::SphericalChromosome(const G4String& name,
                                         const G4ThreeVector& pos,
                                         const G4double& radius,
                                         const G4RotationMatrix& rot)
  : VirtualChromosome(name)
  , fCenter(pos)
  , fRadius(radius)
  , fRotation(rot)
{}

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SphericalChromosome::~SphericalChromosome() = default;

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G4bool SphericalChromosome::PointInChromosome(G4ThreeVector const& pos)
{
  G4ThreeVector rpos = pos - fCenter;
  rpos               = fInverseRotation(rpos);
  G4bool radius_ok   = (rpos.mag2() < fRadius * fRadius);
  return radius_ok;
}

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G4ThreeVector SphericalChromosome::RandomPointInChromosome()
{
  G4ThreeVector point = fRadius * G4UniformRand() * G4RandomDirection();
  return fRotation(point) + fCenter;
}
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void SphericalChromosome::Print()
{
  G4cout << "type: " << fShape << G4endl;
  G4cout << "radius: " << fRadius << G4endl;
  G4cout << "center: " << fCenter << G4endl;
  G4cout << "rotation: " << fRotation.getPhi() << " " << fRotation.getTheta()
  << " " << fRotation.getPhi() << G4endl;
}

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