LevelStreamingStateMachine.h

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#pragma once
 
#include "CoreMinimal.h"
#include "Level/ELevelStreamingEnums.h"
#include "LevelStreamingStateMachine.generated.h"
 
class ULevelStreamingSubsystem;
 
USTRUCT()
struct CK_UE_API FLevelStreamingStateMachine
{
    GENERATED_BODY()
 
public:
    void Initialize(ULevelStreamingSubsystem* LevelStreamingSubsystem);
    void NotifyPhaseCompleted(ELevelStreamingPhase Phase);
    void NotifyAsyncLoadCompleted();
    void NotifyBundleLoadCompleted();
    void NotifyLevelShown();
    void BeginLoad();
    void Reset();
 
public:
    FORCEINLINE bool IsBusy() const
    {
        return CurrentState != ELevelStreamingFlowState::Idle;
    }
 
    FORCEINLINE ELevelStreamingFlowState GetState() const
    {
        return CurrentState;
    }
 
private:
    void TransitionTo(ELevelStreamingFlowState NewState);
    void ProcessState();
 
private:
    ELevelStreamingFlowState CurrentState = ELevelStreamingFlowState::Idle;
    EDuringLoadGate DuringLoadGates = EDuringLoadGate::None;
 
private:
    UPROPERTY()
    TObjectPtr<ULevelStreamingSubsystem> Owner;
 
private:
    friend class ULevelStreamingSubsystem;
};