Initial commit: Item Interaction Ecosystem plugin (UE5.7)

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>

Source/ItemDatabase/Public/ItemContentRows.h

@@ -0,0 +1,121 @@
+// Copyright ExByte Studios. Item Interaction Ecosystem.
+
+#pragma once
+
+#include "CoreMinimal.h"
+#include "Engine/DataTable.h"
+#include "GameplayTagContainer.h"
+#include "ItemEnums.h"
+#include "ItemContentRows.generated.h"
+
+/** DT_Containers row (section 6): a reusable container template. */
+USTRUCT(BlueprintType)
+struct ITEMDATABASE_API FContainerDefRow : public FTableRowBase
+{
+	GENERATED_BODY()
+
+	UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "Container")
+	FGameplayTag ContainerTag;
+
+	UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "Container")
+	EInventoryContainerType Type = EInventoryContainerType::SlotList;
+
+	UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "Container")
+	int32 Width = 0;
+
+	UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "Container")
+	int32 Height = 0;
+
+	UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "Container")
+	int32 MaxSlots = 0;
+
+	UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "Container")
+	float MaxWeight = 0.f;
+
+	UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "Container")
+	FGameplayTagContainer AcceptedItemTags;
+
+	UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "Container")
+	FGameplayTagContainer BlockedItemTags;
+};
+
+/** DT_WorldSlots row (section 6/14): documents a world slot's contract. */
+USTRUCT(BlueprintType)
+struct ITEMDATABASE_API FWorldSlotDefRow : public FTableRowBase
+{
+	GENERATED_BODY()
+
+	UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "World Slot")
+	FGameplayTag SlotTag;
+
+	UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "World Slot")
+	FGameplayTagContainer AcceptedItemTags;
+
+	UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "World Slot")
+	FName AttachSocketName;
+};
+
+/** DT_LootTables row (section 6): one weighted drop in a named loot table. */
+USTRUCT(BlueprintType)
+struct ITEMDATABASE_API FLootEntryRow : public FTableRowBase
+{
+	GENERATED_BODY()
+
+	UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "Loot")
+	FName TableId;
+
+	UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "Loot")
+	FName ItemId;
+
+	UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "Loot")
+	float Weight = 1.f;
+
+	/** 0..1 independent chance that this entry rolls at all. */
+	UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "Loot")
+	float Chance = 1.f;
+
+	UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "Loot")
+	int32 MinQuantity = 1;
+
+	UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "Loot")
+	int32 MaxQuantity = 1;
+};
+
+/** One required ingredient of a recipe. */
+USTRUCT(BlueprintType)
+struct ITEMDATABASE_API FCraftingIngredient
+{
+	GENERATED_BODY()
+
+	UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "Crafting")
+	FName ItemId;
+
+	UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "Crafting")
+	int32 Quantity = 1;
+};
+
+/** DT_CraftingRecipes row (section 6). */
+USTRUCT(BlueprintType)
+struct ITEMDATABASE_API FCraftingRecipeRow : public FTableRowBase
+{
+	GENERATED_BODY()
+
+	UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "Crafting")
+	FName RecipeId;
+
+	/** Optional station requirement, e.g. Station.Workbench. Empty = craft anywhere. */
+	UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "Crafting")
+	FGameplayTag StationTag;
+
+	UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "Crafting")
+	TArray<FCraftingIngredient> Inputs;
+
+	UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "Crafting")
+	FName OutputItemId;
+
+	UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "Crafting")
+	int32 OutputQuantity = 1;
+
+	UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "Crafting")
+	float CraftTime = 0.f;
+};