particles_factory_interface.hh
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particles_factory_interface.hh
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			#ifndef __PARTICLES_FACTORY_INTERFACE__HH__
			#define __PARTICLES_FACTORY_INTERFACE__HH__

			/* -------------------------------------------------------------------------- */
			#include "system_evolution.hh"
			/* -------------------------------------------------------------------------- */

			//! Abstract factory defining interface
			class ParticlesFactoryInterface {
			// Constructors/Destructors
			protected:
			//! Instance constructor (protected)
			ParticlesFactoryInterface() = default;

			public:
			virtual ~ParticlesFactoryInterface() = default;

			// Methods
			public:
			//! Create a whole simulation from file
			virtual SystemEvolution& createSimulation(const std::string& fname,
			Real timestep) = 0;
			//! Create a new particle
			virtual std::unique_ptr<Particle> createParticle() = 0;

			//! Get singleton instance
			static ParticlesFactoryInterface& getInstance();

			// Members
			protected:
			std::vector<Particle*> list_particles;
			std::unique_ptr<SystemEvolution> system_evolution = nullptr;

			// Standard pointer because constructor is protected (cannot use make_unique)
			static ParticlesFactoryInterface* factory;
			};

			/* -------------------------------------------------------------------------- */
			#endif //__PARTICLES_FACTORY_INTERFACE__HH__