RigidBodyIndexPair.h

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// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#include "CoreMinimal.h"
 
struct FRigidBodyIndexPair
{
    int32       Indices[2];
    
    FRigidBodyIndexPair()
    {}
 
    FRigidBodyIndexPair( int32 Index1, int32 Index2 )
    {
        Indices[0] = FMath::Min( Index1, Index2 );
        Indices[1] = FMath::Max( Index1, Index2 );
    }
 
    bool operator==( const FRigidBodyIndexPair &Other ) const
    {
        return (Indices[0] == Other.Indices[0]) && (Indices[1] == Other.Indices[1]);
    }
 
    friend FArchive& operator<< ( FArchive &Ar, FRigidBodyIndexPair &Pair )
    {
        Ar << Pair.Indices[0] << Pair.Indices[1];
        return Ar;
    }
};
 
inline uint32 GetTypeHash( const FRigidBodyIndexPair Pair )
{
    return Pair.Indices[0] + (Pair.Indices[1] * 23);
}