MovieSceneTrackIdentifier.h

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// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#include "CoreMinimal.h"
#include "UObject/ObjectMacros.h"
#include "UObject/EditorObjectVersion.h"
#include "MovieSceneTrackIdentifier.generated.h"
 
USTRUCT()
struct FMovieSceneTrackIdentifier
{
    GENERATED_BODY()
 
    FMovieSceneTrackIdentifier()
        : Value(-1)
    {}
 
    static FMovieSceneTrackIdentifier Invalid() { return FMovieSceneTrackIdentifier(); }
 
    explicit operator bool() const
    {
        return Value != -1;
    }
 
    FMovieSceneTrackIdentifier& operator++()
    {
        ++Value;
        return *this;
    }
 
    inline friend bool operator==(FMovieSceneTrackIdentifier A, FMovieSceneTrackIdentifier B)
    {
        return A.Value == B.Value;
    }
 
    inline friend bool operator!=(FMovieSceneTrackIdentifier A, FMovieSceneTrackIdentifier B)
    {
        return A.Value != B.Value;
    }
 
    inline friend bool operator<(FMovieSceneTrackIdentifier A, FMovieSceneTrackIdentifier B)
    {
        return A.Value < B.Value;
    }
 
    inline friend bool operator>(FMovieSceneTrackIdentifier A, FMovieSceneTrackIdentifier B)
    {
        return A.Value > B.Value;
    }
 
    inline friend uint32 GetTypeHash(FMovieSceneTrackIdentifier In)
    {
        return In.Value;
    }
 
    bool Serialize(FArchive& Ar)
    {
        Ar.UsingCustomVersion(FEditorObjectVersion::GUID);
        if (Ar.CustomVer(FEditorObjectVersion::GUID) < FEditorObjectVersion::MovieSceneMetaDataSerialization)
        {
            return false;
        }
 
        Ar << Value;
        return true;
    }
 
    friend FArchive& operator<<(FArchive& Ar, FMovieSceneTrackIdentifier& Identifier)
    {
        Identifier.Serialize(Ar);
        return Ar;
    }
 
private:
 
    friend struct FMovieSceneEvaluationTemplate;
    
    UPROPERTY()
    uint32 Value;
};
 
template<>
struct TStructOpsTypeTraits<FMovieSceneTrackIdentifier> : public TStructOpsTypeTraitsBase2<FMovieSceneTrackIdentifier>
{
    enum
    {
        WithSerializer = true, WithIdenticalViaEquality = true
    };
    static constexpr EPropertyObjectReferenceType WithSerializerObjectReferences = EPropertyObjectReferenceType::None;
};