MassProperties.h

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// Jolt Physics Library (https://github.com/jrouwe/JoltPhysics)
// SPDX-FileCopyrightText: 2021 Jorrit Rouwe
// SPDX-License-Identifier: MIT
 
#pragma once
 
#include <Jolt/ObjectStream/SerializableObject.h>
 
JPH_NAMESPACE_BEGIN
 
class StreamIn;
class StreamOut;
 
class JPH_EXPORT MassProperties
{
    JPH_DECLARE_SERIALIZABLE_NON_VIRTUAL(JPH_EXPORT, MassProperties)
 
public:
    bool                    operator == (const MassProperties &inRHS) const
    {
        return mMass == inRHS.mMass && mInertia == inRHS.mInertia;
    }
 
    bool                    operator != (const MassProperties &inRHS) const
    {
        return !(*this == inRHS);
    }
 
    bool                    DecomposePrincipalMomentsOfInertia(Mat44 &outRotation, Vec3 &outDiagonal) const;
 
    void                    SetMassAndInertiaOfSolidBox(Vec3Arg inBoxSize, float inDensity);
 
    void                    ScaleToMass(float inMass);
 
    static Vec3             sGetEquivalentSolidBoxSize(float inMass, Vec3Arg inInertiaDiagonal);
 
    void                    Rotate(Mat44Arg inRotation);
 
    void                    Translate(Vec3Arg inTranslation);
 
    void                    Scale(Vec3Arg inScale);
 
    void                    SaveBinaryState(StreamOut &inStream) const;
 
    void                    RestoreBinaryState(StreamIn &inStream);
 
    float                   mMass = 0.0f;
 
    Mat44                   mInertia = Mat44::sZero();
};
 
JPH_NAMESPACE_END