Source/ChildHood/ChildHoodCharacter.cpp

@@ -11,12 +11,13 @@
 #include "EnhancedInputSubsystems.h"
 #include "InputActionValue.h"
 #include "ChildHood.h"
+#include "Interaction/InteractionManager.h"
 
 AChildHoodCharacter::AChildHoodCharacter()
 {
 	// Set size for collision capsule
 	GetCapsuleComponent()->InitCapsuleSize(42.f, 96.0f);
-		
+
 	// Don't rotate when the controller rotates. Let that just affect the camera.
 	bUseControllerRotationPitch = false;
 	bUseControllerRotationYaw = false;
@@ -46,15 +47,15 @@ AChildHoodCharacter::AChildHoodCharacter()
 	FollowCamera->SetupAttachment(CameraBoom, USpringArmComponent::SocketName);
 	FollowCamera->bUsePawnControlRotation = false;
 
-	// Note: The skeletal mesh and anim blueprint references on the Mesh component (inherited from Character) 
-	// are set in the derived blueprint asset named ThirdPersonCharacter (to avoid direct content references in C++)
+	// 创建交互管理器组件
+	InteractionManager = CreateDefaultSubobject<UInteractionManager>(TEXT("InteractionManager"));
 }
 
 void AChildHoodCharacter::SetupPlayerInputComponent(UInputComponent* PlayerInputComponent)
 {
 	// Set up action bindings
 	if (UEnhancedInputComponent* EnhancedInputComponent = Cast<UEnhancedInputComponent>(PlayerInputComponent)) {
-		
+
 		// Jumping
 		EnhancedInputComponent->BindAction(JumpAction, ETriggerEvent::Started, this, &ACharacter::Jump);
 		EnhancedInputComponent->BindAction(JumpAction, ETriggerEvent::Completed, this, &ACharacter::StopJumping);
@@ -92,6 +93,12 @@ void AChildHoodCharacter::Look(const FInputActionValue& Value)
 
 void AChildHoodCharacter::DoMove(float Right, float Forward)
 {
+	// 交互中屏蔽移动
+	if (bIsInteracting)
+	{
+		return;
+	}
+
 	if (GetController() != nullptr)
 	{
 		// find out which way is forward
@@ -101,10 +108,10 @@ void AChildHoodCharacter::DoMove(float Right, float Forward)
 		// get forward vector
 		const FVector ForwardDirection = FRotationMatrix(YawRotation).GetUnitAxis(EAxis::X);
 
-		// get right vector 
+		// get right vector
 		const FVector RightDirection = FRotationMatrix(YawRotation).GetUnitAxis(EAxis::Y);
 
-		// add movement 
+		// add movement
 		AddMovementInput(ForwardDirection, Forward);
 		AddMovementInput(RightDirection, Right);
 	}
@@ -131,3 +138,22 @@ void AChildHoodCharacter::DoJumpEnd()
 	// signal the character to stop jumping
 	StopJumping();
 }
+
+// ============================================================================
+// 交互系统方法
+// ============================================================================
+
+UInteractionManager* AChildHoodCharacter::GetInteractionManager() const
+{
+	return InteractionManager;
+}
+
+void AChildHoodCharacter::SetInteracting(bool bValue)
+{
+	bIsInteracting = bValue;
+}
+
+bool AChildHoodCharacter::IsInteracting() const
+{
+	return bIsInteracting;
+}

Source/ChildHood/ChildHoodCharacter.h

@@ -10,6 +10,7 @@
 class USpringArmComponent;
 class UCameraComponent;
 class UInputAction;
+class UInteractionManager;
 struct FInputActionValue;
 
 DECLARE_LOG_CATEGORY_EXTERN(LogTemplateCharacter, Log, All);
@@ -30,7 +31,7 @@ class AChildHoodCharacter : public ACharacter
 	/** Follow camera */
 	UPROPERTY(VisibleAnywhere, BlueprintReadOnly, Category="Components", meta = (AllowPrivateAccess = "true"))
 	UCameraComponent* FollowCamera;
-	
+
 protected:
 
 	/** Jump Input Action */
@@ -49,10 +50,29 @@ protected:
 	UPROPERTY(EditAnywhere, Category="Input")
 	UInputAction* MouseLookAction;
 
+	/** 交互管理器组件 */
+	UPROPERTY(VisibleAnywhere, BlueprintReadOnly, Category = "Interaction", meta = (AllowPrivateAccess = "true"))
+	UInteractionManager* InteractionManager;
+
+	/** 是否处于交互状态（交互期间屏蔽移动） */
+	bool bIsInteracting = false;
+
 public:
 
 	/** Constructor */
-	AChildHoodCharacter();	
+	AChildHoodCharacter();
+
+	/** 获取交互管理器组件 */
+	UFUNCTION(BlueprintCallable, BlueprintPure, Category = "Interaction")
+	UInteractionManager* GetInteractionManager() const;
+
+	/** 设置交互状态（InteractionManager 调用，控制移动屏蔽） */
+	UFUNCTION(BlueprintCallable, Category = "Interaction")
+	void SetInteracting(bool bValue);
+
+	/** 查询当前是否在交互中 */
+	UFUNCTION(BlueprintCallable, BlueprintPure, Category = "Interaction")
+	bool IsInteracting() const;
 
 protected:
 
@@ -93,4 +113,3 @@ public:
 	/** Returns FollowCamera subobject **/
 	FORCEINLINE class UCameraComponent* GetFollowCamera() const { return FollowCamera; }
 };
-

Source/ChildHood/ChildHoodPlayerController.cpp

@@ -1,7 +1,9 @@
 // Copyright Epic Games, Inc. All Rights Reserved.
 
-
 #include "ChildHoodPlayerController.h"
+#include "ChildHoodCharacter.h"
+#include "Interaction/InteractionManager.h"
+#include "EnhancedInputComponent.h"
 #include "EnhancedInputSubsystems.h"
 #include "Engine/LocalPlayer.h"
 #include "InputMappingContext.h"
@@ -57,6 +59,28 @@ void AChildHoodPlayerController::SetupInputComponent()
 				}
 			}
 		}
+
+		// 绑定交互输入（Enhanced Input Action）
+		if (UEnhancedInputComponent* EnhancedInputComponent = Cast<UEnhancedInputComponent>(InputComponent))
+		{
+			// 交互（E 键）
+			if (InteractAction)
+			{
+				EnhancedInputComponent->BindAction(InteractAction, ETriggerEvent::Started, this, &AChildHoodPlayerController::OnInteractPressed);
+			}
+
+			// 取消（ESC 键）
+			if (CancelAction)
+			{
+				EnhancedInputComponent->BindAction(CancelAction, ETriggerEvent::Started, this, &AChildHoodPlayerController::OnCancelPressed);
+			}
+
+			// 切换交互目标（Tab/滚轮）
+			if (SwitchInteractAction)
+			{
+				EnhancedInputComponent->BindAction(SwitchInteractAction, ETriggerEvent::Triggered, this, &AChildHoodPlayerController::OnSwitchInteract);
+			}
+		}
 	}
 }
 
@@ -65,3 +89,56 @@ bool AChildHoodPlayerController::ShouldUseTouchControls() const
 	// are we on a mobile platform? Should we force touch?
 	return SVirtualJoystick::ShouldDisplayTouchInterface() || bForceTouchControls;
 }
+
+// ============================================================================
+// 交互输入回调
+// ============================================================================
+
+void AChildHoodPlayerController::OnInteractPressed()
+{
+	if (APawn* MyPawn = GetPawn())
+	{
+		if (AChildHoodCharacter* Char = Cast<AChildHoodCharacter>(MyPawn))
+		{
+			if (UInteractionManager* IM = Char->GetInteractionManager())
+			{
+				// E 键双重功能：Free 状态发起交互，Active 阶段结束交互
+				// BeginInteract 在非 Free 状态会被拒绝（内部 return）
+				// CancelInteract 在非 Interacting 状态或 AnimLock 阶段会被拒绝
+				IM->BeginInteract();
+				IM->CancelInteract();
+			}
+		}
+	}
+}
+
+void AChildHoodPlayerController::OnCancelPressed()
+{
+	if (APawn* MyPawn = GetPawn())
+	{
+		if (AChildHoodCharacter* Char = Cast<AChildHoodCharacter>(MyPawn))
+		{
+			if (UInteractionManager* IM = Char->GetInteractionManager())
+			{
+				IM->CancelInteract();
+			}
+		}
+	}
+}
+
+void AChildHoodPlayerController::OnSwitchInteract(const FInputActionValue& Value)
+{
+	if (APawn* MyPawn = GetPawn())
+	{
+		if (AChildHoodCharacter* Char = Cast<AChildHoodCharacter>(MyPawn))
+		{
+			if (UInteractionManager* IM = Char->GetInteractionManager())
+			{
+				// 读取 float 值作为方向：正值=下一个，负值=上一个
+				float DirectionValue = Value.Get<float>();
+				int32 Direction = (DirectionValue >= 0.f) ? 1 : -1;
+				IM->SwitchTarget(Direction);
+			}
+		}
+	}
+}

Source/ChildHood/ChildHoodPlayerController.h

@@ -7,7 +7,9 @@
 #include "ChildHoodPlayerController.generated.h"
 
 class UInputMappingContext;
+class UInputAction;
 class UUserWidget;
+struct FInputActionValue;
 
 /**
  *  Basic PlayerController class for a third person game
@@ -17,7 +19,7 @@ UCLASS(abstract)
 class AChildHoodPlayerController : public APlayerController
 {
 	GENERATED_BODY()
-	
+
 protected:
 
 	/** Input Mapping Contexts */
@@ -40,6 +42,20 @@ protected:
 	UPROPERTY(EditAnywhere, Config, Category = "Input|Touch Controls")
 	bool bForceTouchControls = false;
 
+	// === 交互输入 ===
+
+	/** 交互输入动作（E 键） */
+	UPROPERTY(EditAnywhere, Category = "Input|Interaction")
+	UInputAction* InteractAction;
+
+	/** 取消输入动作（ESC 键） */
+	UPROPERTY(EditAnywhere, Category = "Input|Interaction")
+	UInputAction* CancelAction;
+
+	/** 切换交互目标输入动作（Tab/滚轮） */
+	UPROPERTY(EditAnywhere, Category = "Input|Interaction")
+	UInputAction* SwitchInteractAction;
+
 	/** Gameplay initialization */
 	virtual void BeginPlay() override;
 
@@ -49,4 +65,14 @@ protected:
 	/** Returns true if the player should use UMG touch controls */
 	bool ShouldUseTouchControls() const;
 
+private:
+
+	/** E 键按下回调：发起交互 */
+	void OnInteractPressed();
+
+	/** ESC 键按下回调：取消/结束交互 */
+	void OnCancelPressed();
+
+	/** Tab/滚轮回调：切换交互目标 */
+	void OnSwitchInteract(const FInputActionValue& Value);
 };