PointOfInterestManager.h

#pragma once

#include "CoreMinimal.h"
#include "Components/SplineComponent.h"

#include "PointOfInterestManager.generated.h"

DECLARE_LOG_CATEGORY_EXTERN(POIManagerLog, All, All);

class APointOfInterest;
class FCameraRide;

UCLASS(Blueprintable)
class APointOfInterestManager : public AActor
{
	GENERATED_BODY()

public:
	APointOfInterestManager();

	virtual void TickActor(float DeltaTime, enum ELevelTick TickType, FActorTickFunction& ThisTickFunction) override;

	UFUNCTION(CallInEditor, BlueprintCallable, Category="Point Of Interest Manager")
	void AddPointOfInterest();

	UFUNCTION(CallInEditor, BlueprintCallable, Category="Point Of Interest Manager")
	void VisitNextPointOfInterest();

	UFUNCTION(CallInEditor, BlueprintCallable, Category="Point Of Interest Manager")
	void VisitPreviousPointOfInterest();

	UFUNCTION(BlueprintCallable, Category="Point Of Interest Manager")
	void VisitPointOfInterestByIndex(int index);
	UFUNCTION(BlueprintCallable, Category="Point Of Interest Manager")
	void VisitPointOfInterest(APointOfInterest* POI) const;

	UFUNCTION(CallInEditor, BlueprintCallable, Category="Point Of Interest Manager")
	void StartCameraRide();
	UFUNCTION(CallInEditor, BlueprintCallable, Category="Point Of Interest Manager")
	void StopCameraRide();

	UFUNCTION(BlueprintCallable, Category="Point Of Interest Manager")
	int GetPointOfInterestCount();

	/**
	 * Whether the camera should progress a constant distance between ticks (true) or a variable distance based on frametimes (false).
	 * This should be set to true if you expect long/inconsistent frame times or for e.g. PSO gathering.
	 */
	UPROPERTY(EditAnywhere, Category="Point Of Interest Manager")
	bool MakeCameraRideProgressionConstantBetweenTicks = true;

	/**
	 * Only relevant when MakeCameraRideProgressionConstantBetweenTicks = true.
	 * The conversion rate of how many ticks the camera should update to equal the distance traveled during 1 second.
	 */
	UPROPERTY(EditAnywhere, Category="Point Of Interest Manager",
		meta = (EditCondition = "MakeCameraRideProgressionConstantBetweenTicks"))
	int CameraRideSecondsToUpdates = 60;

protected:
	UPROPERTY(EditAnywhere)
	TArray<APointOfInterest*> POIs;

	int CurrentPOIIndex = 0;

private:
	UFUNCTION(CallInEditor, BlueprintCallable, Category="Point Of Interest Manager")
	void UpdateSpline();

	void ProgressCameraRide();
	void CameraRideEnded();

	USplineComponent* SplineComponent;

	UPROPERTY(EditAnywhere, meta=(UIMin = 0.0, UIMax = 500))
	float CameraSpeed = 100;
	bool IsRidingCamera;
	float CameraRideStart, CameraRideEnd;
	int DurationInUpdates, CurrentUpdate;
};