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unitysamples

// Copyright Epic Games, Inc. All Rights Reserved.

#pragma once

#include "Components/GameFrameworkInitStateInterface.h"
#include "Components/PawnComponent.h"

#include "LyraPawnExtensionComponent.generated.h"

#define UE_API LYRAGAME_API

namespace EEndPlayReason { enum Type : int; }

class UGameFrameworkComponentManager;
class ULyraAbilitySystemComponent;
class ULyraPawnData;
class UObject;
struct FActorInitStateChangedParams;
struct FFrame;
struct FGameplayTag;

/**
 * Component that adds functionality to all Pawn classes so it can be used for characters/vehicles/etc.
 * This coordinates the initialization of other components.
 */
UCLASS(MinimalAPI)
class ULyraPawnExtensionComponent : public UPawnComponent, public IGameFrameworkInitStateInterface
{
	GENERATED_BODY()

public:

	UE_API ULyraPawnExtensionComponent(const FObjectInitializer& ObjectInitializer);

	/** The name of this overall feature, this one depends on the other named component features */
	static UE_API const FName NAME_ActorFeatureName;

	//~ Begin IGameFrameworkInitStateInterface interface
	virtual FName GetFeatureName() const override { return NAME_ActorFeatureName; }
	UE_API virtual bool CanChangeInitState(UGameFrameworkComponentManager* Manager, FGameplayTag CurrentState, FGameplayTag DesiredState) const override;
	UE_API virtual void HandleChangeInitState(UGameFrameworkComponentManager* Manager, FGameplayTag CurrentState, FGameplayTag DesiredState) override;
	UE_API virtual void OnActorInitStateChanged(const FActorInitStateChangedParams& Params) override;
	UE_API virtual void CheckDefaultInitialization() override;
	//~ End IGameFrameworkInitStateInterface interface

	/** Returns the pawn extension component if one exists on the specified actor. */
	UFUNCTION(BlueprintPure, Category = "Lyra|Pawn")
	static ULyraPawnExtensionComponent* FindPawnExtensionComponent(const AActor* Actor) { return (Actor ? Actor->FindComponentByClass<ULyraPawnExtensionComponent>() : nullptr); }

	/** Gets the pawn data, which is used to specify pawn properties in data */
	template <class T>
	const T* GetPawnData() const { return Cast<T>(PawnData); }

	/** Sets the current pawn data */
	UE_API void SetPawnData(const ULyraPawnData* InPawnData);

	/** Gets the current ability system component, which may be owned by a different actor */
	UFUNCTION(BlueprintPure, Category = "Lyra|Pawn")
	ULyraAbilitySystemComponent* GetLyraAbilitySystemComponent() const { return AbilitySystemComponent; }

	/** Should be called by the owning pawn to become the avatar of the ability system. */
	UE_API void InitializeAbilitySystem(ULyraAbilitySystemComponent* InASC, AActor* InOwnerActor);

	/** Should be called by the owning pawn to remove itself as the avatar of the ability system. */
	UE_API void UninitializeAbilitySystem();

	/** Should be called by the owning pawn when the pawn's controller changes. */
	UE_API void HandleControllerChanged();

	/** Should be called by the owning pawn when the player state has been replicated. */
	UE_API void HandlePlayerStateReplicated();

	/** Should be called by the owning pawn when the input component is setup. */
	UE_API void SetupPlayerInputComponent();

	/** Register with the OnAbilitySystemInitialized delegate and broadcast if our pawn has been registered with the ability system component */
	UE_API void OnAbilitySystemInitialized_RegisterAndCall(FSimpleMulticastDelegate::FDelegate Delegate);

	/** Register with the OnAbilitySystemUninitialized delegate fired when our pawn is removed as the ability system's avatar actor */
	UE_API void OnAbilitySystemUninitialized_Register(FSimpleMulticastDelegate::FDelegate Delegate);

protected:

	UE_API virtual void OnRegister() override;
	UE_API virtual void BeginPlay() override;
	UE_API virtual void EndPlay(const EEndPlayReason::Type EndPlayReason) override;

	UFUNCTION()
	UE_API void OnRep_PawnData();

	/** Delegate fired when our pawn becomes the ability system's avatar actor */
	FSimpleMulticastDelegate OnAbilitySystemInitialized;

	/** Delegate fired when our pawn is removed as the ability system's avatar actor */
	FSimpleMulticastDelegate OnAbilitySystemUninitialized;

	/** Pawn data used to create the pawn. Specified from a spawn function or on a placed instance. */
	UPROPERTY(EditInstanceOnly, ReplicatedUsing = OnRep_PawnData, Category = "Lyra|Pawn")
	TObjectPtr<const ULyraPawnData> PawnData;

	/** Pointer to the ability system component that is cached for convenience. */
	UPROPERTY(Transient)
	TObjectPtr<ULyraAbilitySystemComponent> AbilitySystemComponent;
};

#undef UE_API

	// Copyright Epic Games, Inc. All Rights Reserved.

	#pragma once

	#include "Components/GameFrameworkInitStateInterface.h"
	#include "Components/PawnComponent.h"

	#include "LyraPawnExtensionComponent.generated.h"

	#define UE_API LYRAGAME_API

	namespace EEndPlayReason { enum Type : int; }

	class UGameFrameworkComponentManager;
	class ULyraAbilitySystemComponent;
	class ULyraPawnData;
	class UObject;
	struct FActorInitStateChangedParams;
	struct FFrame;
	struct FGameplayTag;

	/**
	* Component that adds functionality to all Pawn classes so it can be used for characters/vehicles/etc.
	* This coordinates the initialization of other components.
	*/
	UCLASS(MinimalAPI)
	class ULyraPawnExtensionComponent : public UPawnComponent, public IGameFrameworkInitStateInterface
	{
	GENERATED_BODY()

	public:

	UE_API ULyraPawnExtensionComponent(const FObjectInitializer& ObjectInitializer);

	/** The name of this overall feature, this one depends on the other named component features */
	static UE_API const FName NAME_ActorFeatureName;

	//~ Begin IGameFrameworkInitStateInterface interface
	virtual FName GetFeatureName() const override { return NAME_ActorFeatureName; }
	UE_API virtual bool CanChangeInitState(UGameFrameworkComponentManager* Manager, FGameplayTag CurrentState, FGameplayTag DesiredState) const override;
	UE_API virtual void HandleChangeInitState(UGameFrameworkComponentManager* Manager, FGameplayTag CurrentState, FGameplayTag DesiredState) override;
	UE_API virtual void OnActorInitStateChanged(const FActorInitStateChangedParams& Params) override;
	UE_API virtual void CheckDefaultInitialization() override;
	//~ End IGameFrameworkInitStateInterface interface

	/** Returns the pawn extension component if one exists on the specified actor. */
	UFUNCTION(BlueprintPure, Category = "Lyra\|Pawn")
	static ULyraPawnExtensionComponent* FindPawnExtensionComponent(const AActor* Actor) { return (Actor ? Actor->FindComponentByClass<ULyraPawnExtensionComponent>() : nullptr); }

	/** Gets the pawn data, which is used to specify pawn properties in data */
	template <class T>
	const T* GetPawnData() const { return Cast<T>(PawnData); }

	/** Sets the current pawn data */
	UE_API void SetPawnData(const ULyraPawnData* InPawnData);

	/** Gets the current ability system component, which may be owned by a different actor */
	UFUNCTION(BlueprintPure, Category = "Lyra\|Pawn")
	ULyraAbilitySystemComponent* GetLyraAbilitySystemComponent() const { return AbilitySystemComponent; }

	/** Should be called by the owning pawn to become the avatar of the ability system. */
	UE_API void InitializeAbilitySystem(ULyraAbilitySystemComponent* InASC, AActor* InOwnerActor);

	/** Should be called by the owning pawn to remove itself as the avatar of the ability system. */
	UE_API void UninitializeAbilitySystem();

	/** Should be called by the owning pawn when the pawn's controller changes. */
	UE_API void HandleControllerChanged();

	/** Should be called by the owning pawn when the player state has been replicated. */
	UE_API void HandlePlayerStateReplicated();

	/** Should be called by the owning pawn when the input component is setup. */
	UE_API void SetupPlayerInputComponent();

	/** Register with the OnAbilitySystemInitialized delegate and broadcast if our pawn has been registered with the ability system component */
	UE_API void OnAbilitySystemInitialized_RegisterAndCall(FSimpleMulticastDelegate::FDelegate Delegate);

	/** Register with the OnAbilitySystemUninitialized delegate fired when our pawn is removed as the ability system's avatar actor */
	UE_API void OnAbilitySystemUninitialized_Register(FSimpleMulticastDelegate::FDelegate Delegate);

	protected:

	UE_API virtual void OnRegister() override;
	UE_API virtual void BeginPlay() override;
	UE_API virtual void EndPlay(const EEndPlayReason::Type EndPlayReason) override;

	UFUNCTION()
	UE_API void OnRep_PawnData();

	/** Delegate fired when our pawn becomes the ability system's avatar actor */
	FSimpleMulticastDelegate OnAbilitySystemInitialized;

	/** Delegate fired when our pawn is removed as the ability system's avatar actor */
	FSimpleMulticastDelegate OnAbilitySystemUninitialized;

	/** Pawn data used to create the pawn. Specified from a spawn function or on a placed instance. */
	UPROPERTY(EditInstanceOnly, ReplicatedUsing = OnRep_PawnData, Category = "Lyra\|Pawn")
	TObjectPtr<const ULyraPawnData> PawnData;

	/** Pointer to the ability system component that is cached for convenience. */
	UPROPERTY(Transient)
	TObjectPtr<ULyraAbilitySystemComponent> AbilitySystemComponent;
	};

	#undef UE_API