NavSystemConfigOverride.h

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// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#if UE_ENABLE_INCLUDE_ORDER_DEPRECATED_IN_5_4
#include "CoreMinimal.h"
#endif
#include "UObject/ObjectMacros.h"
#include "GameFramework/Actor.h"
#include "AI/NavigationSystemBase.h"
#include "NavSystemConfigOverride.generated.h"
 
 
class UNavigationSystemConfig;
 
UENUM()
enum class ENavSystemOverridePolicy : uint8
{
    Override, // the pre-existing nav system instance will be destroyed.
    Append, // config information will be added to pre-existing nav system instance
    Skip    // if there's already a NavigationSystem in the world then the overriding config will be ignored
};
 
 
UCLASS(hidecategories = (Input, Rendering, Actor, LOD, Cooking), MinimalAPI)
class ANavSystemConfigOverride : public AActor
{
    GENERATED_BODY()
 
#if WITH_EDITORONLY_DATA
private:
    UPROPERTY()
    TObjectPtr<class UBillboardComponent> SpriteComponent;
#endif // WITH_EDITORONLY_DATA
 
protected:
    UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = Navigation, Instanced,  meta = (NoResetToDefault))
    TObjectPtr<UNavigationSystemConfig> NavigationSystemConfig;
 
    UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = Navigation)
    ENavSystemOverridePolicy OverridePolicy;
 
    UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = Navigation, AdvancedDisplay)
    uint8 bLoadOnClient : 1;
 
public:
    NAVIGATIONSYSTEM_API ANavSystemConfigOverride(const FObjectInitializer& ObjectInitializer = FObjectInitializer::Get());
 
    //~ Begin UObject Interface
    NAVIGATIONSYSTEM_API virtual void PostInitProperties() override;
#if WITH_EDITOR
    NAVIGATIONSYSTEM_API virtual void PostEditChangeProperty(FPropertyChangedEvent& PropertyChangedEvent) override;
#endif // WITH_EDITOR
    //~ End UObject Interface
 
    //~ Begin AActor Interface
    NAVIGATIONSYSTEM_API virtual void BeginPlay() override;
#if WITH_EDITOR
    NAVIGATIONSYSTEM_API virtual void PostRegisterAllComponents() override;
    NAVIGATIONSYSTEM_API virtual void PostUnregisterAllComponents() override;
#endif
    //~ End AActor Interface
 
#if WITH_EDITOR
    UFUNCTION(Category = Navigation, meta = (CallInEditor = "true"))
    NAVIGATIONSYSTEM_API void ApplyChanges();
    //virtual void CheckForErrors() override;
#endif
 
protected:
    NAVIGATIONSYSTEM_API virtual void OverrideNavSystem();
 
    NAVIGATIONSYSTEM_API virtual void AppendToNavSystem(UNavigationSystemBase& PrevNavSys);
 
#if WITH_EDITOR
    NAVIGATIONSYSTEM_API void InitializeForWorld(UNavigationSystemBase* NewNavSys, UWorld* World, const FNavigationSystemRunMode RunMode);
#endif // WITH_EDITOR
 
    NAVIGATIONSYSTEM_API void ApplyConfig();
};