csv_reader.cc
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	#include "csv_reader.hh"
	#include "particles_factory_interface.hh"
	#include "planet.hh"
	#include <fstream>
	#include <sstream>
	/* -------------------------------------------------------------------------- */
	CsvReader::CsvReader(const std::string& filename) : filename(filename) {}
	/* -------------------------------------------------------------------------- */
	void CsvReader::read(System& system) { this->compute(system); }
	/* -------------------------------------------------------------------------- */

	void CsvReader::compute(System& system) {

	std::ifstream is(filename.c_str());
	std::string line;
	// Check if file is already open
	if (is.is_open() == false) {
	std::cerr << "Error: file not opened" << filename << std::endl;
	throw;
	}

	while (is.good()) {
	//Gets line from CSV file
	getline(is, line);
	//Copy line in sstr
	std::stringstream sstr(line); //Real line should be corresponding to: x y z v vx vy vz fx fy fz mass radius name

	// Check line structure before copying
	if (line.size() == 0) continue;

	// Creare Particle class and dynamic cast to Planet
	// std::unique_ptr<Particle> p; // not to use, because the object will be destroyed by System
	// p.reset(new Planet());
	std::shared_ptr<Particle> p;
	p.reset(new Planet());
	// Initialize Planet
	p->initself(sstr);

	// Add particle to the system
	system.addParticle(p);
	}

	// Close file
	is.close();
	}

	/* -------------------------------------------------------------------------- */