ColliderSet2.h

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/*************************************************************************
> File Name: ColliderSet2.h
> Project Name: CubbyFlow
> Author: Chan-Ho Chris Ohk
> Purpose: Collection of 2-D colliders.
> Created Time: 2017/05/09
> Copyright (c) 2018, Chan-Ho Chris Ohk
*************************************************************************/
#ifndef CUBBYFLOW_COLLIDER_SET2_H
#define CUBBYFLOW_COLLIDER_SET2_H

#include <Core/Collider/Collider2.h>

#include <vector>

namespace CubbyFlow
{
    class ColliderSet2 final : public Collider2
    {
    public:
        class Builder;

        ColliderSet2();

        explicit ColliderSet2(const std::vector<Collider2Ptr>& others);

        Vector2D VelocityAt(const Vector2D& point) const override;

        void AddCollider(const Collider2Ptr& collider);

        size_t NumberOfColliders() const;

        Collider2Ptr Collider(size_t i) const;

        static Builder GetBuilder();

    private:
        std::vector<Collider2Ptr> m_colliders;
    };

    typedef std::shared_ptr<ColliderSet2> ColliderSet2Ptr;

    class ColliderSet2::Builder final
    {
    public:
        Builder& WithColliders(const std::vector<Collider2Ptr>& others);

        ColliderSet2 Build() const;

        ColliderSet2Ptr MakeShared() const;

    private:
        std::vector<Collider2Ptr> m_colliders;
    };
}

#endif