BlockThirdBodyGravity.hpp

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#pragma once
 
#include "AstGlobal.h"
#include "AstCore/BlockAstro.hpp"
#include "AstCore/BlockDerivative.hpp"
#include "AstCore/GravityCalculator.hpp"
#include "AstCore/Axes.hpp"
#include "AstMath/Vector.hpp"
 
AST_NAMESPACE_BEGIN
 
class AST_CORE_API BlockThirdBodyGravity : public BlockDerivative
{
public:
    BlockThirdBodyGravity();
 
    BlockThirdBodyGravity(const BlockThirdBodyGravity&) = delete;
    BlockThirdBodyGravity& operator=(const BlockThirdBodyGravity&) = delete;
 
    explicit BlockThirdBodyGravity(Point* thirdBody, GravityField&& gravityField,
                                   int degree, int order, Axes* gravityAxes,
                                   Frame* propagationFrame);
 
    errc_t run(const SimTime& simTime) override;
 
    void setConsiderVariations(bool considerVariations) { considerVariations_ = considerVariations; }
protected:
    errc_t prepare(const SimTime& simTime, Vector3d& thirdBodyPos, Rotation& rotation);
    Vector3d* posCBI{&vectorBuffer};                          
    Vector3d* accThirdBody{&vectorBuffer};                    
    Vector3d* velocityDerivative_{&vectorBuffer};             
    Vector3d vectorBuffer{};                                  
private:
    void init();
protected:
    Point* thirdBody_{};                              
    HAxes  gravityAxes_;                              
    HAxes  propagationAxes_;                          
    Frame* propagationFrame_{};                       
    GravityCalculatorDefault gravityCalculator_;      
    bool   considerVariations_{false};                
};
 
AST_NAMESPACE_END