DragSurfaceInteraction.h

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#pragma once
#include "Module/MouseInputModule.h"
#include "Module/TopologyModule.h"
#include "Topology/TriangleSet.h"
 
#include "Collision/Attribute.h"

 
namespace dyno
{
    template<typename TDataType>
    class DragSurfaceInteraction : public MouseInputModule
    {
        DECLARE_TCLASS(DragSurfaceInteraction, TDataType)
    public:
        typedef typename TDataType::Real Real;
        typedef typename TDataType::Coord Coord;
        typedef typename TopologyModule::Edge Edge;
        typedef typename TopologyModule::Triangle Triangle;
 
        DragSurfaceInteraction();
        virtual ~DragSurfaceInteraction() {};
 
        void InteractionClick();
        void InteractionDrag();
        void calcSurfaceInteractClick();
        void calcSurfaceInteractDrag();
        void setTriFixed();
        void cancelVelocity();
 
        DEF_INSTANCE_IN(TriangleSet<TDataType>, InitialTriangleSet, "");
 
        DEF_ARRAY_IN(Attribute, Attribute, DeviceType::GPU, "Particle attribute");
 
        DEF_ARRAY_IN(Coord, Position, DeviceType::GPU, "");
 
        DEF_ARRAY_IN(Coord, Velocity, DeviceType::GPU, "");
 
        DEF_VAR(Real, InterationRadius, 0.005, "The radius of interaction");
    
        DEF_VAR_IN(Real, TimeStep, "Time step");
 
 
    protected:
 
        void onEvent(PMouseEvent event) override;
 
    private:
        bool needInit = true;
        std::shared_ptr<Camera> camera;
        TRay3D<Real> ray1;
        TRay3D<Real> ray2;
        Real x1;
        Real y1;
        Real x2;
        Real y2;
        bool isPressed;
 
        DArray<int> triIntersectedIndex; //reference for all triangles, int: 0,1
        DArray<int> intersected_triangles; // reference for intersected list, int: tId
        DArray<Attribute> restoreAttribute; 
        int intersectionCenterIndex;  //intersected triangle (with out radius expanded).
        DArray<Coord> intersectionCenter; //current pos of intersected triangle[intersectionCenterIndex]
    };
 
    IMPLEMENT_TCLASS(DragSurfaceInteraction, TDataType)
}