			#include "compute_gravity.hh"
			#include "compute_verlet_integration.hh"
			#include "csv_reader.hh"
			#include "csv_writer.hh"
			#include "my_types.hh"
			#include "ping_pong_balls_factory.hh"
			#include "planets_factory.hh"
			#include "system.hh"
			/* -------------------------------------------------------------------------- */
			#include <cstdlib>
			#include <iostream>
			#include <sstream>
			/* -------------------------------------------------------------------------- */

			int main(int argc, char** argv) {
			if (argc != 6) {
			std::cout << "Usage: " << argv[0]
			<< " nsteps dump_freq input.csv particle_type timestep"
			<< std::endl;
			std::cout << "\tparticle type can be: planet, ping_pong" << std::endl;
			std::exit(EXIT_FAILURE);
			}


			// the number of steps to perform
			Real nsteps;
			std::stringstream(argv[1]) >> nsteps;
			// freq to dump
			int freq;
			std::stringstream(argv[2]) >> freq;
			// init file
			std::string filename = argv[3];
			// particle type
			std::string type = argv[4];
			// timestep
			Real timestep;
			std::stringstream(argv[5]) >> timestep;

			if (type == "planet")
			PlanetsFactory::getInstance();
			else if (type == "ping_pong")
			PingPongBallsFactory::getInstance();
			else {
			std::cout << "Unknown particle type: " << type << std::endl;
			std::exit(EXIT_FAILURE);
			}

			ParticlesFactoryInterface& factory = ParticlesFactoryInterface::getInstance();

			SystemEvolution& evol = factory.createSimulation(filename, timestep);

			evol.setNSteps(nsteps);
			evol.setDumpFreq(freq);

			evol.evolve();


			return EXIT_SUCCESS;
			}

R7571/exercises/week8/particles/solution/main.cc
0c0a64643caew12ex2_FR

main.cc
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