ShapeInstanceFwd.h

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// Copyright Epic Games, Inc. All Rights Reserved.
#pragma once
 
#include "Containers/Array.h"
#include "Framework/ThreadContextEnum.h"
#include "Templates/SharedPointer.h"
#include "Templates/UniquePtr.h"
#include "Templates/RefCounting.h"
#include "ImplicitFwd.h"
#include <type_traits>
 
// @todo(chaos): use TRefCountPtr rather than TSharedPtr below - it is smaller (one atomic int instead of 2 atomic ints and 2 pointers)
 
namespace Chaos
{
    // Legacy names
    class FPerShapeData;
    using FShapesArray = TArray<TUniquePtr<FPerShapeData>, TInlineAllocator<1>>;
 
    // Game thread ShapeInstance
    class FShapeInstanceProxy;
    using FShapeInstanceProxyPtr = TUniquePtr<FShapeInstanceProxy>;
    using FConstShapeInstanceProxyPtr = TUniquePtr<const FShapeInstanceProxy>;
    using FShapeInstanceProxyArray = TArray<FShapeInstanceProxyPtr, TInlineAllocator<1>>;
 
    // Physics thread ShapeInstance
    class FShapeInstance;
    using FShapeInstancePtr = TUniquePtr<FShapeInstance>;
    using FConstShapeInstancePtr = TUniquePtr<const FShapeInstance>;
    using FShapeInstanceArray = TArray<FShapeInstancePtr, TInlineAllocator<1>>;
 
    template<EThreadContext Id>
    using TThreadShapeInstance = std::conditional_t<Id == EThreadContext::External, FShapeInstanceProxy, FShapeInstance>;
 
    template<EThreadContext Id>
    using TThreadShapeInstanceArray = std::conditional_t<Id == EThreadContext::External, FShapeInstanceProxyArray, FShapeInstanceArray>;
}