#ifndef CONSTRUCTION_HH
#define CONSTRUCTION_HH

#include "G4SystemOfUnits.hh"
#include "G4VUserDetectorConstruction.hh"
#include "G4VPhysicalVolume.hh"
#include "G4LogicalVolume.hh"
#include "G4Box.hh"
#include "G4PVPlacement.hh"
#include "G4NistManager.hh"
#include "G4VSensitiveDetector.hh"
#include "G4GenericMessenger.hh"
#include "G4Tubs.hh"
#include "globals.hh"
#include "MyElectricField.hh"
#include "G4EqMagElectricField.hh"
#include "G4FieldManager.hh"
#include "G4TransportationManager.hh"
#include "G4ChordFinder.hh"
#include "G4MagIntegratorDriver.hh"
#include "G4ClassicalRK4.hh"

class MyDetectorConstruction : public G4VUserDetectorConstruction 
{
public:
    MyDetectorConstruction();
    virtual ~MyDetectorConstruction();
    virtual G4VPhysicalVolume* Construct() override;

private:
    G4Box  *solidWorld;
    G4LogicalVolume *logicWorld;       
    G4VPhysicalVolume  *physWorld;    
    G4Material  *worldMat;

    void ConstructField(const G4String& fieldFilename);
    MyElectricField* fElectricField;
    G4FieldManager* fFieldManager;
    G4ChordFinder* fChordFinder;
};

#endif