Double3.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/Core/HashCombine.h>
 
JPH_NAMESPACE_BEGIN
 
class [[nodiscard]] Double3
{
public:
    JPH_OVERRIDE_NEW_DELETE
 
                Double3() = default; 
                Double3(const Double3 &inRHS) = default;
                Double3(double inX, double inY, double inZ) : x(inX), y(inY), z(inZ) { }
 
    double      operator [] (int inCoordinate) const    
    { 
        JPH_ASSERT(inCoordinate < 3); 
        return *(&x + inCoordinate); 
    }
 
    bool        operator == (const Double3 &inRHS) const
    {
        return x == inRHS.x && y == inRHS.y && z == inRHS.z;
    }
 
    bool        operator != (const Double3 &inRHS) const
    {
        return x != inRHS.x || y != inRHS.y || z != inRHS.z;
    }
 
    double      x;
    double      y;
    double      z;
};
 
static_assert(is_trivial<Double3>(), "Is supposed to be a trivial type!");
 
JPH_NAMESPACE_END
 
// Create a std::hash for Double3
JPH_MAKE_HASHABLE(JPH::Double3, t.x, t.y, t.z)