问题描述
我有这个错误：“EquipableItem”无法编译：父类“Item”有错误。我试图排除 EquipableItem 类并重新生成项目以隔离 Item 类中的错误并将它们显示在编译器中。我已经检查了所有循环依赖项并修复了它们。但是还是有这个错误。你能告诉我接下来我能做什么吗？
1>------ Build started: Project: SurvivalGame,Configuration: Development_Editor x64 ------
1>Parsing headers for SurvivalGameEditor
1> Running UnrealHeaderTool "D:\OneDrive\Dokumenty\All\UnrealEngine\Tutorials\SurvivalGame\SurvivalGame.uproject" "D:\OneDrive\Dokumenty\All\UnrealEngine\Tutorials\SurvivalGame\Intermediate\Build\Win64\SurvivalGameEditor\Development\SurvivalGameEditor.uhtmanifest" -LogCmds="loginit warning,logexit warning,logdatabase error" -Unattended -WarningsAsErrors -abslog="C:\Users\xondr\AppData\Local\UnrealBuildTool\Log_UHT.txt" -installed
1>D:/OneDrive/Dokumenty/All/UnrealEngine/Tutorials/SurvivalGame/Source/SurvivalGame/Items/EquipableItem.h(32): error : 'EquipableItem' can't be compiled: Parent class 'Item' has errors
1>C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\MSBuild\Microsoft\VC\v160\Microsoft.MakeFile.Targets(46,5): error MSB3073: The command "C:\Windows\System32\chcp.com 65001 >NUL
1>C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\MSBuild\Microsoft\VC\v160\Microsoft.MakeFile.Targets(46,5): error MSB3073: "C:\Program Files\Epic Games\UE_4.26\Engine\Build\BatchFiles\Build.bat" SurvivalGameEditor Win64 Development -Project="D:\OneDrive\Dokumenty\All\UnrealEngine\Tutorials\SurvivalGame\SurvivalGame.uproject" -WaitMutex -FromMsBuild" exited with code 6.
1>Done building project "SurvivalGame.vcxproj" -- Failed.
========== Build: 0 succeeded,1 Failed,0 up-to-date,0 skipped ==========
项目.h
// Fill out your copyright notice in the Description page of Project Settings.
#pragma once
#include "CoreMinimal.h"
#include "UObject/NoExportTypes.h"
#include "Player/SurivalCharacter.h"
//#include "Inventory/InventoryComponent.h"
#include "Net/UnrealNetwork.h"
#include "Item.generated.h"
DECLARE_DYNAMIC_MULTICAST_DELEGATE(FOnItemmodified);
UENUM(BlueprintType)
enum class EItemRarity : uint8
{
IR_Common UMeta(displayName = "Common"),IR_Uncommon UMeta(displayName = "Uncommon"),IR_Rare UMeta(displayName = "Rare"),IR_VeryRare UMeta(displayName = "Very Rare"),IR_Legendary UMeta(displayName = "Legendary")
};
/**
*
*/
UCLASS(Blueprintable,EditInlineNew,DefaultToInstanced)
class SURVIVALGAME_API UItem : public UObject
{
GENERATED_BODY()
protected:
virtual void GetLifetimeReplicatedProps(TArray<class FLifetimeProperty> & OutLifetimeProps) const override;
virtual bool IsSupportedForNetworking() const override;
#if WITH_EDITOR
virtual void PostEditChangeProperty(struct FPropertyChangedEvent& PropertyChangedEvent) override;
#endif
public:
UItem();
//The mesh to display for this items pickup
UPROPERTY(EditDefaultsOnly,BlueprintReadWrite,Category = "Item")
class UStaticmesh* PickupMesh;
//The thumbnail for this item
UPROPERTY(EditDefaultsOnly,BlueprintReadOnly,Category = "Item")
class UTexture2D* Thumbnail;
//The display name for this item in the inventory
UPROPERTY(EditDefaultsOnly,Category = "Item")
FText ItemdisplayName;
//An optional description for the item
UPROPERTY(EditDefaultsOnly,Category = "Item",Meta = (MultiLine = true))
FText ItemDescription;
//The text for using the item. (Equip,Eat,etc)
UPROPERTY(EditDefaultsOnly,Category = "Item")
FText UseActionText;
//The rarity of the item
UPROPERTY(EditDefaultsOnly,Category = "Item")
EItemRarity Rarity;
//The weight of the item
UPROPERTY(EditDefaultsOnly,Meta = (ClampMin = 0.0))
float Weight;
//Whether or not this item can be stacked
UPROPERTY(EditDefaultsOnly,Category = "Item")
bool bStackable;
//The maximum size that a stack of items can be
UPROPERTY(EditDefaultsOnly,Meta = (ClampMin = 2,EditCondition = bStackable))
int32 MaxStackSize;
//The tooltip in the inventory for this item
UPROPERTY(EditDefaultsOnly,Category = "Item")
TSubclassOf<class UItemTooltip> ItemTooltip;
//The amount of the item
UPROPERTY(ReplicatedUsing = OnRep_Quantity,EditAnywhere,Meta = (UIMin = 1,EditCondition = bStackable))
int32 Quantity;
//The inventory that owns this item
Uproperty()
class UInventoryComponent* OwningInventory;
//Used to efficiently replicate inventory items
Uproperty()
int32 RepKey;
UPROPERTY(BlueprintAssignable)
FOnItemmodified OnItemmodified;
UFUNCTION()
void OnRep_Quantity();
UFUNCTION(BlueprintCallable,Category = "Item")
void SetQuantity(const int32 NewQuantity);
UFUNCTION(BlueprintPure,Category = "Item")
FORCEINLINE int32 GetQuantity() const { return Quantity; }
UFUNCTION(BlueprintCallable,Category = "Item")
FORCEINLINE float GetStackWeight() const { return Quantity * Weight; }
UFUNCTION(BlueprintPure,Category = "Item")
virtual bool ShouldShowInInventory() const;
virtual void Use(class ASurivalCharacter* Character);
virtual void AddedToInventory(class UInventoryComponent* Inventory);
//Mark the object as needing replication. We must call this internally after modifying any replicated properties
void MarkDirtyForReplication();
};
项目.cpp
// Fill out your copyright notice in the Description page of Project Settings.
#include "Item.h"
#define LOCTEXT_NAMESPACE "Item"
void UItem::GetLifetimeReplicatedProps(TArray<class FLifetimeProperty> & OutLifetimeProps) const
{
Super::GetLifetimeReplicatedProps(OutLifetimeProps);
DOREPLIFETIME(UItem,Quantity);
}
bool UItem::IsSupportedForNetworking() const
{
return true;
}
#if WITH_EDITOR
void UItem::PostEditChangeProperty(FPropertyChangedEvent& PropertyChangedEvent)
{
Super::PostEditChangeProperty(PropertyChangedEvent);
FName ChangedPropertyName = PropertyChangedEvent.Property ? PropertyChangedEvent.Property->GetFName() : NAME_None;
//UPROPERTY clamping doesn't support using a variable to clamp so we do in here instead
if (ChangedPropertyName == GET_MEMBER_NAME_CHECKED(UItem,Quantity))
{
Quantity = FMath::Clamp(Quantity,1,bStackable ? MaxStackSize : 1);
}
}
#endif
UItem::UItem()
{
ItemdisplayName = LOCTEXT("ItemName","Item");
UseActionText = LOCTEXT("ItemUseActionText","Use");
Weight = 0.f;
bStackable = true;
Quantity = 1;
MaxStackSize = 2;
RepKey = 0;
}
void UItem::OnRep_Quantity()
{
OnItemmodified.broadcast();
}
void UItem::SetQuantity(const int32 NewQuantity)
{
if (NewQuantity != Quantity)
{
Quantity = FMath::Clamp(NewQuantity,bStackable ? MaxStackSize : 1);
MarkDirtyForReplication();
}
}
bool UItem::ShouldShowInInventory() const
{
return true;
}
void UItem::Use(ASurivalCharacter* Character)
{
}
void UItem::AddedToInventory(UInventoryComponent* Inventory)
{
}
void UItem::MarkDirtyForReplication()
{
//Mark this object for replication
++RepKey;
//Mark the array for replication
if (OwningInventory)
{
++OwningInventory->ReplicatedItemsKey;
}
}
#undef LOCTEXT_NAMESPACE
EquipableItem.h
// Fill out your copyright notice in the Description page of Project Settings.
#pragma once
#include "CoreMinimal.h"
#include "Items/Item.h"
#include "EquipableItem.generated.h"
//All the slots that gear can be equipped to.
UENUM(BlueprintType)
enum class EEquippableSlot : uint8
{
EIS_Head UMeta(displayName = "Head"),EIS_Helmet UMeta(displayName = "Helmet"),EIS_Chest UMeta(displayName = "Chest"),EIS_Vest UMeta(displayName = "Vest"),EIS_Legs UMeta(displayName = "Legs"),EIS_Feet UMeta(displayName = "Feet"),EIS_Hands UMeta(displayName = "Hands"),EIS_Backpack UMeta(displayName = "Backpack"),EIS_PrimaryWeapon UMeta(displayName = "PrimaryWeapon"),EIS_Throwable UMeta(displayName = "Throwable Item")
};
/**
*
*/
UCLASS(Abstract,NotBlueprintable)
class SURVIVALGAME_API UEquipableItem : public UItem /*: public UObject*/
{
GENERATED_BODY()
public:
UEquipableItem();
UPROPERTY(EditDefaultsOnly,Category = "Equippables")
EEquippableSlot Slot;
virtual void GetLifetimeReplicatedProps(TArray<class FLifetimeProperty>& OutLifetimeProps) const override;
virtual void Use(class ASurivalCharacter* Character) override;
UFUNCTION(BlueprintCallable,Category = "Equippables")
virtual bool Equip(class ASurivalCharacter* Character);
UFUNCTION(BlueprintCallable,Category = "Equippables")
virtual bool UnEquip(class ASurivalCharacter* Character);
virtual bool ShouldShowInInventory() const override;
UFUNCTION(BlueprintPure,Category = "Equippables")
bool IsEquipped() { return bEquipped; };
//Call this on the server to equip the item
void SetEquipped(bool bNewEquipped);
protected:
UPROPERTY(ReplicatedUsing = EquipStatusChanged)
bool bEquipped;
UFUNCTION()
void EquipStatusChanged();
};
EquipableItem.cpp
// Fill out your copyright notice in the Description page of Project Settings.
#include "Items/EquipableItem.h"
//#include "EquipableItem.h"
//#include "Player/SurivalCharacter.h"
//#include "Net/UnrealNetwork.h"
//#include "Inventory/InventoryComponent.h"
#define LOCTEXT_NAMESPACE "EquippableItem"
UEquipableItem::UEquipableItem()
{
bStackable = false;
bEquipped = false;
UseActionText = LOCTEXT("ItemUseActionText","Equip");
}
void UEquipableItem::GetLifetimeReplicatedProps(TArray<class FLifetimeProperty>& OutLifetimeProps) const
{
Super::GetLifetimeReplicatedProps(OutLifetimeProps);
DOREPLIFETIME(UEquipableItem,bEquipped);
}
void UEquipableItem::Use(ASurivalCharacter* Character)
{
if (Character && Character->HasAuthority())
{
if (Character->GetEquippedItems().Contains(Slot) && !bEquipped)
{
UEquipableItem* AlreadyEquippedItem = *Character->GetEquippedItems().Find(Slot);
AlreadyEquippedItem->SetEquipped(false);
}
SetEquipped(!IsEquipped());
}
}
bool UEquipableItem::Equip(ASurivalCharacter* Character)
{
if (Character)
{
return Character->EquipItem(this);
}
return false;
}
bool UEquipableItem::UnEquip(ASurivalCharacter* Character)
{
if (Character)
{
return Character->UnEquipItem(this);
}
return false;
}
bool UEquipableItem::ShouldShowInInventory() const
{
return !bEquipped;
}
void UEquipableItem::SetEquipped(bool bNewEquipped)
{
bEquipped = bNewEquipped;
EquipStatusChanged();
MarkDirtyForReplication();
}
void UEquipableItem::EquipStatusChanged()
{
if (ASurivalCharacter* Character = Cast<ASurivalCharacter>(Getouter()))
{
if (bEquipped)
{
Equip(Character);
}
else
{
UnEquip(Character);
}
}
//Tell UI to update
OnItemmodified.broadcast();
}
#undef LOCTEXT_NAMESPACE
解决方法
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