feat(interaction): 新增交互系统核心C++框架（6a-6f）
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// ChildHood Project - 可交互物组件 实现
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#include "Interaction/InteractableComponent.h"
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#include "Interaction/InteractableActor.h"
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#include "Interaction/InteractionManager.h"
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#include "ChildHoodGameInstance.h"
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#include "ChildHood.h"
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#include "Components/SphereComponent.h"
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#include "Engine/World.h"
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#include "GameFramework/Character.h"
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#include "Kismet/GameplayStatics.h"
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// ============================================================================
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// 构造函数
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// ============================================================================
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UInteractableComponent::UInteractableComponent()
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{
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// 不需要 Tick，检测由碰撞事件驱动
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PrimaryComponentTick.bCanEverTick = false;
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}
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// ============================================================================
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// 生命周期
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// ============================================================================
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void UInteractableComponent::BeginPlay()
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{
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Super::BeginPlay();
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AActor* Owner = GetOwner();
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if (!Owner)
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{
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UE_LOG(LogChildHood, Warning, TEXT("InteractableComponent: 无 Owner，跳过初始化"));
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return;
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}
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// --- 创建检测球 ---
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DetectionSphere = NewObject<USphereComponent>(this, USphereComponent::StaticClass(), TEXT("DetectionSphere"));
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if (DetectionSphere)
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{
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DetectionSphere->SetupAttachment(Owner->GetRootComponent());
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DetectionSphere->RegisterComponent();
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DetectionSphere->SetSphereRadius(Data.TriggerRadius);
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DetectionSphere->SetCollisionProfileName(TEXT("OverlapAllDynamic"));
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// 关闭物理模拟，仅用于 Overlap 检测
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DetectionSphere->SetGenerateOverlapEvents(true);
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DetectionSphere->SetCanEverAffectNavigation(false);
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// 绑定碰撞事件
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DetectionSphere->OnComponentBeginOverlap.AddDynamic(this, &UInteractableComponent::OnDetectionOverlapBegin);
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DetectionSphere->OnComponentEndOverlap.AddDynamic(this, &UInteractableComponent::OnDetectionOverlapEnd);
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}
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else
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{
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UE_LOG(LogChildHood, Error, TEXT("InteractableComponent: DetectionSphere 创建失败"));
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}
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// --- 恢复跨场景持久状态 ---
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if (UChildHoodGameInstance* GI = GetWorld()->GetGameInstance<UChildHoodGameInstance>())
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{
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RestorePersistentState(GI);
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}
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UE_LOG(LogChildHood, Log, TEXT("InteractableComponent Init: %s (Type=%s, Radius=%f)"),
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Data.DisplayName.IsEmpty() ? TEXT("(unnamed)") : *Data.DisplayName,
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*UEnum::GetValueAsString(Data.Type),
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Data.TriggerRadius);
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}
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// ============================================================================
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// 提示文本
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// ============================================================================
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FString UInteractableComponent::GetPromptText() const
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{
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FString Verb = Data.InteractVerb;
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// 门类型：根据当前开关状态选择动词
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if (Data.Type == EInteractType::Operate && Data.OperateSubType == EOperateSubType::Door)
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{
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Verb = bDoorIsOpen ? Data.InteractVerbAlt : Data.InteractVerb;
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}
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return FString::Printf(TEXT("[E] %s %s"), *Verb, *Data.DisplayName);
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}
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// ============================================================================
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// 消耗管理
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// ============================================================================
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void UInteractableComponent::Consume()
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{
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bIsConsumed = true;
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// 禁用检测球，不再触发 Overlap
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if (DetectionSphere)
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{
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DetectionSphere->SetCollisionEnabled(ECollisionEnabled::NoCollision);
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}
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// 写入持久层
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if (UWorld* World = GetWorld())
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{
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if (UChildHoodGameInstance* GI = World->GetGameInstance<UChildHoodGameInstance>())
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{
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GI->MarkItemCollected(Data.ItemId);
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}
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}
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UE_LOG(LogChildHood, Log, TEXT("InteractableComponent 已消耗: %s"), *Data.ItemId.ToString());
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}
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// ============================================================================
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// 门状态管理
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// ============================================================================
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void UInteractableComponent::ToggleDoor()
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{
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bDoorIsOpen = !bDoorIsOpen;
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UE_LOG(LogChildHood, Log, TEXT("InteractableComponent 门状态切换: %s → %s"),
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*Data.ItemId.ToString(),
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bDoorIsOpen ? TEXT("开") : TEXT("关"));
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}
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// ============================================================================
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// 位置查询
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// ============================================================================
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FVector UInteractableComponent::GetWorldLocation() const
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{
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AActor* Owner = GetOwner();
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return Owner ? Owner->GetActorLocation() : FVector::ZeroVector;
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}
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// ============================================================================
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// 跨场景持久状态恢复
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// ============================================================================
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void UInteractableComponent::RestorePersistentState(UChildHoodGameInstance* GI)
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{
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if (!GI) return;
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// oneShot 物品：已消耗 → 隐藏 + 禁用检测
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if (Data.bOneShot && GI->IsItemCollected(Data.ItemId))
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{
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bIsConsumed = true;
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if (DetectionSphere)
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{
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DetectionSphere->SetCollisionEnabled(ECollisionEnabled::NoCollision);
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}
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if (AInteractableActor* Owner = Cast<AInteractableActor>(GetOwner()))
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{
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Owner->SetActorHiddenInGame(true);
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}
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UE_LOG(LogChildHood, Log, TEXT("RestorePersistentState: 已消耗物品隐藏: %s"), *Data.ItemId.ToString());
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}
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// 门：恢复开关状态
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if (Data.Type == EInteractType::Operate && Data.OperateSubType == EOperateSubType::Door)
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{
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bDoorIsOpen = GI->IsDoorOpen(Data.ItemId);
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// 通知 Actor 应用视觉状态（Mesh 旋转）
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if (AInteractableActor* Owner = Cast<AInteractableActor>(GetOwner()))
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{
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Owner->OnInteractStarted(this);
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}
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UE_LOG(LogChildHood, Log, TEXT("RestorePersistentState: 门状态恢复: %s → %s"),
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*Data.ItemId.ToString(),
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bDoorIsOpen ? TEXT("开") : TEXT("关"));
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}
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}
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// ============================================================================
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// 碰撞回调
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// ============================================================================
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void UInteractableComponent::OnDetectionOverlapBegin(UPrimitiveComponent* OverlappedComponent,
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AActor* OtherActor,
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UPrimitiveComponent* OtherComp,
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int32 OtherBodyIndex,
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bool bFromSweep,
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const FHitResult& SweepResult)
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{
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if (!OtherActor) return;
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// 只响应 Character（玩家）的进入
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ACharacter* Character = Cast<ACharacter>(OtherActor);
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if (!Character) return;
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// 已消耗的交互物不再注册
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if (bIsConsumed) return;
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UE_LOG(LogChildHood, Verbose, TEXT("检测到角色进入范围: %s ← %s"),
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*Data.DisplayName, *OtherActor->GetName());
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// 获取角色的 InteractionManager 并注册自己
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if (UInteractionManager* IM = Character->FindComponentByClass<UInteractionManager>())
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{
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IM->RegisterInteractable(this);
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}
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}
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void UInteractableComponent::OnDetectionOverlapEnd(UPrimitiveComponent* OverlappedComponent,
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AActor* OtherActor,
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UPrimitiveComponent* OtherComp,
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int32 OtherBodyIndex)
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{
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if (!OtherActor) return;
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ACharacter* Character = Cast<ACharacter>(OtherActor);
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if (!Character) return;
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UE_LOG(LogChildHood, Verbose, TEXT("角色离开范围: %s ← %s"),
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*Data.DisplayName, *OtherActor->GetName());
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// 获取角色的 InteractionManager 并注销自己
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if (UInteractionManager* IM = Character->FindComponentByClass<UInteractionManager>())
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{
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IM->UnregisterInteractable(this);
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}
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}
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