BaseWall.h

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#ifndef BASEWALL_H
#define BASEWALL_H

#include "BaseInteractable.h"
#include "Particles/SuperQuadricParticle.h"

class WallHandler;

class BaseParticle;

struct VTKContainer
{
    std::vector<Vec3D> points;
    std::vector<std::vector<double>> triangleStrips;
};

class BaseWall : public BaseInteractable
{
public:
    BaseWall();
    
    BaseWall(const BaseWall& w);
    
    ~BaseWall() override;
    
    virtual BaseWall* copy() const = 0;
    
    void read(std::istream& is) override;
    
    void write(std::ostream& os) const override;
    
    virtual bool getDistanceAndNormal(const BaseParticle& P, Mdouble& distance, Vec3D& normal_return) const = 0;
    
    
    virtual bool
    getDistanceNormalOverlap(const BaseParticle& P, Mdouble& distance, Vec3D& normal_return, Mdouble& overlap) const;
    
    virtual bool getDistanceNormalOverlapSuperquadric(const SuperQuadricParticle& p, Mdouble& distance, Vec3D& normal_return,
                                                      Mdouble& overlap) const;
    
    virtual Vec3D
    getFurthestPointSuperQuadric(const Vec3D& normalBodyFixed, const Vec3D& axes, Mdouble eps1, Mdouble eps2) const;
    
    virtual void setHandler(WallHandler* handler);
    
    WallHandler* getHandler() const;
    
    void setIndSpecies(unsigned int indSpecies) override;
    
    void setSpecies(const ParticleSpecies* species);
    
    bool isFixed() const override;

    void setForceControl(Vec3D forceGoal, Vec3D gainFactor, Vec3D baseVelocity={0,0,0});
    
    virtual bool isLocal(Vec3D& min, Vec3D& max) const
    { return false; }
    
    // returns the point intersecting a wall (x-p).n=0 and a line x=p0+t(p1-p0)
    bool getLinePlaneIntersect(Vec3D& intersect, const Vec3D& p0, const Vec3D& p1, const Vec3D& n, const Vec3D& p);
    bool isInsideWallVTK(const Vec3D& point, const Vec3D& normal, const Vec3D& position) const;
    
    void projectOntoWallVTK(Vec3D& point0, const Vec3D& point1, const Vec3D& normal, const Vec3D& position) const;
    
    void intersectVTK(std::vector<Vec3D>& points, Vec3D normal, Vec3D position) const;
    
    
    virtual BaseInteraction*
    getInteractionWithSuperQuad(SuperQuadricParticle* p, unsigned timeStamp, InteractionHandler* interactionHandler);
    
    virtual void writeVTK(VTKContainer& vtk) const;
    
    void getVTK(std::vector<Vec3D>& points, std::vector<std::vector<double>>& triangleStrips)
    {}
    
    const Vec3D getAxis() const;
    
    BaseInteraction*
    getInteractionWith(BaseParticle* p, unsigned timeStamp, InteractionHandler* interactionHandler) override;
    
    bool getVTKVisibility() const;
    
    void setVTKVisibility(bool vtkVisibility);
    
    static void addToVTK(const std::vector<Vec3D>& points, VTKContainer& vtk);
    
    //todo how do i write a copy and add function?
    void addRenderedWall(BaseWall* w);

    BaseWall* getRenderedWall(size_t i) const;

    void removeRenderedWalls();

    void renderWall(VTKContainer& vtk);

    void addParticlesAtWall(unsigned numElements = 50);

    void setVelocityControl(Vec3D forceGoal, Vec3D gainFactor, Vec3D baseVelocity);

private:
    WallHandler* handler_; 
    
    bool vtkVisibility_ = true;
    
    std::vector<BaseWall*> renderedWalls_;

};

#endif