RealtimeStyleTransferRuntime/Source/LyraGame/Interaction/Tasks/AbilityTask_WaitForInteractableTargets.h

// Copyright Epic Games, Inc. All Rights Reserved.
#pragma once

#include "Abilities/Tasks/AbilityTask.h"
#include "Containers/Array.h"
#include "Delegates/Delegate.h"
#include "Engine/CollisionProfile.h"
#include "Interaction/InteractionOption.h"
#include "Math/MathFwd.h"
#include "UObject/NameTypes.h"
#include "UObject/UObjectGlobals.h"

#include "AbilityTask_WaitForInteractableTargets.generated.h"

class AActor;
class IInteractableTarget;
class UObject;
class UWorld;
struct FCollisionQueryParams;
struct FHitResult;
struct FInteractionQuery;
template <typename InterfaceType> class TScriptInterface;

DECLARE_DYNAMIC_MULTICAST_DELEGATE_OneParam(FInteractableObjectsChangedEvent, const TArray<FInteractionOption>&, InteractableOptions);

UCLASS(Abstract)
class UAbilityTask_WaitForInteractableTargets : public UAbilityTask
{
	GENERATED_UCLASS_BODY()

public:
	UPROPERTY(BlueprintAssignable)
	FInteractableObjectsChangedEvent InteractableObjectsChanged;

protected:

	static void LineTrace(FHitResult& OutHitResult, const UWorld* World, const FVector& Start, const FVector& End, FName ProfileName, const FCollisionQueryParams Params);

	void AimWithPlayerController(const AActor* InSourceActor, FCollisionQueryParams Params, const FVector& TraceStart, float MaxRange, FVector& OutTraceEnd, bool bIgnorePitch = false) const;

	static bool ClipCameraRayToAbilityRange(FVector CameraLocation, FVector CameraDirection, FVector AbilityCenter, float AbilityRange, FVector& ClippedPosition);

	void UpdateInteractableOptions(const FInteractionQuery& InteractQuery, const TArray<TScriptInterface<IInteractableTarget>>& InteractableTargets);

	FCollisionProfileName TraceProfile;

	// Does the trace affect the aiming pitch
	bool bTraceAffectsAimPitch = true;

	TArray<FInteractionOption> CurrentOptions;
};