AtomicGameEngine/Source/Atomic/Atomic2D/ConstraintPulley2D.h

//
// Copyright (c) 2008-2017 the Urho3D project.
//
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// of this software and associated documentation files (the "Software"), to deal
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// furnished to do so, subject to the following conditions:
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// The above copyright notice and this permission notice shall be included in
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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#pragma once

#include "../Atomic2D/Constraint2D.h"

namespace Atomic
{

/// 2D pulley constraint component.
class ATOMIC_API ConstraintPulley2D : public Constraint2D
{
    ATOMIC_OBJECT(ConstraintPulley2D, Constraint2D);

public:
    /// Construct.
    ConstraintPulley2D(Context* context);
    /// Destruct.
    virtual ~ConstraintPulley2D();
    /// Register object factory.
    static void RegisterObject(Context* context);

    /// Set other body ground anchor point.
    void SetOwnerBodyGroundAnchor(const Vector2& groundAnchor);
    /// Set other body ground anchor point.
    void SetOtherBodyGroundAnchor(const Vector2& groundAnchor);
    /// Set owner body anchor point.
    void SetOwnerBodyAnchor(const Vector2& anchor);
    /// Set other body anchor point.
    void SetOtherBodyAnchor(const Vector2& anchor);
    /// Set ratio.
    void SetRatio(float ratio);

    /// Return owner body ground anchor.
    const Vector2& GetOwnerBodyGroundAnchor() const { return ownerBodyGroundAnchor_; }

    /// return other body ground anchor.
    const Vector2& GetOtherBodyGroundAnchor() const { return otherBodyGroundAnchor_; }

    /// Return owner body anchor.
    const Vector2& GetOwnerBodyAnchor() const { return ownerBodyAnchor_; }

    /// Return other body anchor.
    const Vector2& GetOtherBodyAnchor() const { return otherBodyAnchor_; }

    /// Return ratio.
    float GetRatio() const { return jointDef_.ratio; }


private:
    /// Return Joint def.
    virtual b2JointDef* GetJointDef();

    /// Box2D joint def.
    b2PulleyJointDef jointDef_;
    /// Owner body ground anchor.
    Vector2 ownerBodyGroundAnchor_;
    /// Other body ground anchor.
    Vector2 otherBodyGroundAnchor_;
    /// Owner body anchor.
    Vector2 ownerBodyAnchor_;
    /// Other body anchor.
    Vector2 otherBodyAnchor_;
};

}