How to manage polymorphic UObject pointers correctly and replicate to a client?

International
,
1

I want to use state pattern in multiplayer environment.

Lets say I have:

UCLASS()
class UBaseState : public UObject
{
    GENERATED_BODY()
public:
};

UCLASS()
class UOpenState : public BaseState
{
    GENERATED_BODY()
public:
    // some logic
};

UCLASS()
class UClosedState : public BaseState
{
    GENERATED_BODY()
public:
    // some logic
};

I want to create state on a server.
And then I wan’t to store pointer in some actor and replicate it, so client will avare about current state.

UCLASS()
class AMyActor : AActor
{
    GENERATED_BODY()
public:

UPROPERTY(Replicated);
BaseState * CurrentState;
};

How to I delete previous state and creates the new one? Is this gonna work?

void AMyActor::ChangeState()
{ 
     if(CurrentState->IsValid())
     {
         // How do I delete current state?
     {

     CurrentState = NewObject<UClosedState>();
}

void AMyActor::SomeMethodOnAClient()
{
     if(Cast<UStateClosed>(CurrentState))
    {
        // is this gonna work?
    }
}