PropertyConditions.h

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// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#include "Containers/Map.h"
#include "CoreMinimal.h"
#include "Delegates/IDelegateInstance.h"
#include "HAL/Platform.h"
#include "Templates/SharedPointer.h"
#include "UObject/CoreNet.h"
#include "UObject/ObjectKey.h"
 
class FOutputDevice;
class FRepChangedPropertyTracker;
 
namespace UE::Net::Private
{
 
class FNetPropertyConditionManager
{
public:
    NETCORE_API FNetPropertyConditionManager();
    NETCORE_API ~FNetPropertyConditionManager();
 
    static NETCORE_API FNetPropertyConditionManager& Get();
 
    NETCORE_API void SetPropertyActive(const UObject* Object, const uint16 RepIndex, const bool bActive);
    NETCORE_API void SetPropertyActiveOverride(const UObject* Object, const uint16 RepIndex, const bool bIsActive);
    NETCORE_API void SetPropertyDynamicCondition(const UObject* Object, const uint16 RepIndex, const ELifetimeCondition Condition);
    
    NETCORE_API void NotifyObjectDestroyed(const FObjectKey ObjectKey);
 
    NETCORE_API TSharedPtr<FRepChangedPropertyTracker> FindOrCreatePropertyTracker(const FObjectKey ObjectKey);
    NETCORE_API TSharedPtr<FRepChangedPropertyTracker> FindPropertyTracker(const FObjectKey ObjectKey) const;
 
    NETCORE_API void LogMemory(FOutputDevice& Ar);
 
    class FAllowCreateTrackerFromSetPropertyActiveOverrideScope
    {
    public:
        FAllowCreateTrackerFromSetPropertyActiveOverrideScope(FNetPropertyConditionManager& ConditionManager)
        : GuardValue(ConditionManager.bAllowCreateTrackerFromSetPropertyActiveOverride, true) {};
    private:
        TGuardValue<bool> GuardValue;
    };
 
private:
    friend class FAllowCreateTrackerFromSetPropertyActiveOverrideScope;
 
    void PostGarbageCollect();
 
    FDelegateHandle PostGarbageCollectHandle;
 
    TMap<FObjectKey, TSharedPtr<FRepChangedPropertyTracker>> PropertyTrackerMap;
 
    FObjectKey LastFoundTrackerKey;
    FRepChangedPropertyTracker* LastFoundTracker = nullptr;
    bool bAllowCreateTrackerFromSetPropertyActiveOverride = false;
};
 
}; // UE::Net::Private