7f7e043a88
Server-authoritative, data-driven item/inventory/interaction/carry/equipment/ world-slot/placement/crafting framework. 8 modules, compiles against UE 5.7. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
84 lines
2.5 KiB
C++
84 lines
2.5 KiB
C++
// Copyright ExByte Studios. Item Interaction Ecosystem.
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#pragma once
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#include "CoreMinimal.h"
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#include "Components/ActorComponent.h"
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#include "GameplayTagContainer.h"
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#include "ItemInstanceData.h"
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#include "WorldItemSlotComponent.generated.h"
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DECLARE_DYNAMIC_MULTICAST_DELEGATE(FOnWorldSlotChanged);
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/** Replicated state of a world slot's contents (section 14). */
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USTRUCT()
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struct FWorldSlotInstalledState
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{
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GENERATED_BODY()
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UPROPERTY()
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bool bHasItem = false;
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UPROPERTY()
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FItemInstanceData Item;
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};
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/**
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* A socket on a world object that accepts an installed item (section 14):
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* Vehicle.Socket.Battery, Generator.Socket.Fuel, Door.Socket.BarricadePlank,
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* Trap.Socket.Bait, etc. One component per slot.
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*/
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UCLASS(ClassGroup = (Interaction), meta = (BlueprintSpawnableComponent))
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class ITEMWORLD_API UWorldItemSlotComponent : public UActorComponent
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{
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GENERATED_BODY()
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public:
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UWorldItemSlotComponent();
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virtual void GetLifetimeReplicatedProps(TArray<FLifetimeProperty>& OutLifetimeProps) const override;
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/** This slot's identity; items list it in CompatibleWorldSlots to fit. */
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UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "World Slot")
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FGameplayTag SlotTag;
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/** Optional extra gate; empty = accept anything whose CompatibleWorldSlots has SlotTag. */
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UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "World Slot")
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FGameplayTagContainer AcceptedItemTags;
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UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "World Slot")
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FName AttachSocketName = NAME_None;
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UPROPERTY(BlueprintAssignable, Category = "World Slot")
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FOnWorldSlotChanged OnSlotChanged;
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UFUNCTION(BlueprintPure, Category = "World Slot")
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bool IsOccupied() const { return InstalledItem.bHasItem; }
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UFUNCTION(BlueprintPure, Category = "World Slot")
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bool CanInstall(const FItemInstanceData& Item) const;
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UFUNCTION(BlueprintPure, Category = "World Slot")
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FItemInstanceData GetInstalledItem() const { return InstalledItem.Item; }
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/** Server: install an item. ProvidedVisual (e.g. a carried actor) is reused if given. */
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bool InstallItem(const FItemInstanceData& Item, AActor* ProvidedVisual = nullptr);
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/** Server: remove and return the installed item. */
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bool RemoveItem(FItemInstanceData& OutItem);
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protected:
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UPROPERTY(ReplicatedUsing = OnRep_InstalledItem)
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FWorldSlotInstalledState InstalledItem;
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/** Server-spawned visual for the installed item (if not provided externally). */
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UPROPERTY(Replicated)
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TObjectPtr<AActor> InstalledVisual = nullptr;
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UFUNCTION()
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void OnRep_InstalledItem();
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USceneComponent* GetAttachTarget() const;
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bool HasAuthority() const;
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};
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