Collider3.h

Go to the documentation of this file.

/*************************************************************************
> File Name: Collider3.h
> Project Name: CubbyFlow
> Author: Chan-Ho Chris Ohk
> Purpose: Abstract base class for generic collider object.
> Created Time: 2017/05/09
> Copyright (c) 2018, Chan-Ho Chris Ohk
*************************************************************************/
#ifndef CUBBYFLOW_COLLIDER3_H
#define CUBBYFLOW_COLLIDER3_H

#include <Core/Surface/Surface3.h>

#include <functional>

namespace CubbyFlow
{
    class Collider3
    {
    public:
        using OnBeginUpdateCallback = std::function<void(Collider3*, double, double)>;

        Collider3();

        virtual ~Collider3();

        virtual Vector3D VelocityAt(const Vector3D& point) const = 0;

        void ResolveCollision(double radius, double restitutionCoefficient, Vector3D* position, Vector3D* velocity);

        double GetFrictionCoefficient() const;

        void SetFrictionCoefficient(double newFrictionCoeffient);

        const Surface3Ptr& GetSurface() const;

        void Update(double currentTimeInSeconds, double timeIntervalInSeconds);

        void SetOnBeginUpdateCallback(const OnBeginUpdateCallback& callback);

    protected:
        struct ColliderQueryResult final
        {
            double distance;
            Vector3D point;
            Vector3D normal;
            Vector3D velocity;
        };

        void SetSurface(const Surface3Ptr& newSurface);

        void GetClosestPoint(const Surface3Ptr& surface, const Vector3D& queryPoint, ColliderQueryResult* result) const;

        bool IsPenetrating(const ColliderQueryResult& colliderPoint, const Vector3D& position, double radius);

    private:
        Surface3Ptr m_surface;
        double m_frictionCoeffient = 0.0;
        OnBeginUpdateCallback m_onUpdateCallback;
    };

    using Collider3Ptr = std::shared_ptr<Collider3>;
}

#endif