acceleration_field.hpp

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#pragma once

 
#include <span>
 
#include "orrery/core/types.hpp"
#include "orrery/core/vec3_span.hpp"
 
namespace orrery::integrators {

class AccelerationField {
public:
    virtual ~AccelerationField() = default;

    virtual void evaluate(core::Vec3Span<const core::Real> positions,
                          std::span<const core::Real> masses,
                          core::Vec3Span<core::Real> accelerations) = 0;
 
protected:
    // Copying and moving are the derived class's business. They are declared
    // here because a class with a virtual destructor suppresses the implicit
    // ones, and left protected because copying an implementation through a
    // reference to this base would slice it.
    AccelerationField() = default;
    AccelerationField(const AccelerationField&) = default;
    AccelerationField(AccelerationField&&) = default;
    AccelerationField& operator=(const AccelerationField&) = default;
    AccelerationField& operator=(AccelerationField&&) = default;
};
 
} // namespace orrery::integrators