数据混入系统

1	/**
2	 * Container for each fragment's runtime state.
3	 * 每个片段运行时状态的容器。
4	 */
5	UPROPERTY(VisibleAnywhere, BlueprintReadOnly, Replicated, Category="ItemInstance", meta=(DisplayName="Fragment States", ShowOnlyInnerProperties))
6	FGIS_MixinContainer FragmentStates;

1UGIS_ItemInstance::UGIS_ItemInstance(const FObjectInitializer& ObjectInitializer): Super(ObjectInitializer), FragmentStates(this)

1void UGIS_ItemInstance::GetLifetimeReplicatedProps(TArray<FLifetimeProperty>& OutLifetimeProps) const
2{
3	Super::GetLifetimeReplicatedProps(OutLifetimeProps);
4	// FastArray don't need push model.
5	DOREPLIFETIME(ThisClass, FragmentStates);

1class GENERICINVENTORYSYSTEM_API UGIS_ItemInstance : public UObject, public IGIS_MixinOwnerInterface

1	/**
2	 * Called when mixin data is added to the owning object.
3	 * 当混合数据被添加到拥有对象时调用。
4	 * @param Target The target object to which the data is attached. 数据附加到的对象。
5	 * @param Data The added instanced struct data. 添加的实例化结构数据。
6	 */
7	virtual void OnMixinDataAdded(const TObjectPtr<const UObject>& Target, const FInstancedStruct& Data) = 0;
8
9	/**
10	 * Called when mixin data is updated in the owning object.
11	 * 当拥有对象中的混合数据被更新时调用。
12	 * @param Target The target object to which the data is attached. 数据附加到的对象。
13	 * @param Data The updated instanced struct data. 更新的实例化结构数据。
14	 */
15	virtual void OnMixinDataUpdated(const TObjectPtr<const UObject>& Target, const FInstancedStruct& Data) = 0;
16
17	/**
18	 * Called when mixin data is removed from the owning object.
19	 * 当从拥有对象中移除混合数据时调用。
20	 * @param Target The target object to which the data was attached. 数据附加到的对象。
21	 * @param Data The removed instanced struct data. 移除的实例化结构数据。
22	 */
23	virtual void OnMixinDataRemoved(const TObjectPtr<const UObject>& Target, const FInstancedStruct& Data) = 0;

1class GENERICINVENTORYSYSTEM_API UGIS_ItemFragment : public UObject, public IGIS_MixinTargetInterface

1	/**
2	 * Determines if the mixin data can be serialized.
3	 * 确定混合数据是否可以序列化。
4	 * @return True if the data is serializable, false otherwise. 如果数据可序列化则返回true，否则返回false。
5	 */
6	virtual bool IsMixinDataSerializable() const = 0;
7
8	/**
9	 * Retrieves the compatible data structure for the mixin.
10	 * 获取混合数据的兼容数据结构。
11	 * @return The script struct compatible with the mixin data. 与混合数据兼容的脚本结构。
12	 */
13	virtual TObjectPtr<const UScriptStruct> GetCompatibleMixinDataType() const = 0;
14
15	/**
16	 * Generate default runtime data for compatible data type.
17	 * 生成兼容的混合数据类型的默认值。
18	 * @param DefaultState The default value of compatible data. 兼容的数据结构默认值。
19	 * @return If has default value. 是否具备默认值？
20	 */
21	virtual bool MakeDefaultMixinData(FInstancedStruct& DefaultState) const = 0;