StreamingLevelManager.h

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// Copyright(c) Pixo Group. All Rights Reserved.
 
#pragma once
 
#include "CoreMinimal.h"
#include "EventSystem/BaseManager.h"
#include "Engine/DataTable.h"
#include "StreamingLevelManager.generated.h"
 
USTRUCT(BlueprintType)
struct FStreamingLevel : public FTableRowBase
{
    GENERATED_BODY()
    UPROPERTY(EditAnywhere, BlueprintReadOnly)
    FText StepName;
    UPROPERTY(EditAnywhere, BlueprintReadOnly)
    TArray<FName> ActiveLevels;
    UPROPERTY(EditAnywhere, BlueprintReadWrite)
    bool TeleportPlayerToSpecificLocation;
    UPROPERTY(EditAnywhere, BlueprintReadWrite)
    FTransform PlayerNewLocation;
};
 
UCLASS(Blueprintable)
class PIXOCORE_API UStreamingLevelManager : public UBaseManager
{
    GENERATED_BODY()
 
public:
    // Manager event declaration
    DECLARE_EVENT_HANDLER(UNewStepLoadedEvent);
    DECLARE_EVENT_HANDLER(UNewStoryLoadedEvent);
 
public:
    UStreamingLevelManager();
    
    UFUNCTION(BlueprintCallable, Category = "LevelStreamingManager")
    TArray<FName> GetLevelsBasedOnStep(FText StepName); 
 
    UFUNCTION(BlueprintCallable, Category = "LevelStreamingManager")
    void LoadStreamingLevels(TArray<FName> levelsToLoad, bool onlyFadeOut = false, float FadeTime = 0.5f);
 
    UFUNCTION(BlueprintCallable, Category = "LevelStreamingManager")
    void LoadStreamingLevelsAndTeleportPlayer(TArray<FName> Levels, FTransform PlayerTransform, bool OnlyFadeOut = false, float FadeTime = 0.5f);
 
    UFUNCTION(BlueprintCallable, Category = "LevelStreamingManager")
    void SetLevelsVisibility(TArray<FName> Levels, bool Visible); 
    
    UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "LevelStreamingManager")
    UDataTable* LevelStreamingDataTable; 
    
    UPROPERTY(VisibleAnywhere, BlueprintReadOnly, Category = "LevelStreamingManager")
    TArray<FName> LoadedLevels; 
 
    UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "LevelStreamingManager")
    bool AutoFadeInAndOut = true; 
 
protected:
    UFUNCTION(BlueprintCallable, Category = "LevelStreamingManager")
    void FilteredArraysToLoadUnload(TArray<FName> levelsToLoad);
    UFUNCTION()
    void LevelLoaded(); 
    UFUNCTION()
    void LevelUnloaded(); 
 
    void UnloadStreamingLevels(int32 IndexToUnload);
    void LoadStreamingLevels(int32 IndexToLoad);
 
    TArray<FName> LevelsToLoad; 
    TArray<FName> LevelsToUnload; 
    int32 LoadingIndex; 
    int32 UnloadingIndex; 
    
    bool TeleportPlayerToSpecificLocation = false; 
    FTransform PlayerNewTransform; 
 
private:
    float TimeForFades; 
};