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

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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>
This commit is contained in:
Bonchellon
2026-06-22 20:49:56 +03:00
commit 7f7e043a88
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Source/ItemInventory/Public/ItemFeatureLibrary.h Normal file
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// Copyright ExByte Studios. Item Interaction Ecosystem.
#pragma once
#include "CoreMinimal.h"
#include "Kismet/BlueprintFunctionLibrary.h"
#include "ItemInstanceData.h"
#include "ItemFeatureLibrary.generated.h"
class UInventoryComponent;
/**
* Feature processing (section 21). Everything is LAZY: nothing ticks per item.
* Call these on events - container open, save load, interaction, world-time pulse.
* State (freshness, last-update time, charge, fuel) lives in the item's runtime
* properties so it travels with the instance.
*/
UCLASS()
class ITEMINVENTORY_API UItemFeatureLibrary : public UBlueprintFunctionLibrary
{
GENERATED_BODY()
public:
/**
* Recomputes time-based features (rotting) for one item up to "now".
* Returns true if the item changed. If the item should transform (e.g. raw_meat
* -> rotten_meat) OutTransformItemId is set to the replacement id.
*/
UFUNCTION(BlueprintCallable, Category = "Item|Features", meta = (WorldContext = "WorldContext"))
static bool UpdateLazyFeatures(const UObject* WorldContext, UPARAM(ref) FItemInstanceData& Item, FName& OutTransformItemId);
/** Server: run lazy updates across a whole inventory, applying any transforms. */
UFUNCTION(BlueprintCallable, Category = "Item|Features", meta = (WorldContext = "WorldContext"))
static void UpdateInventoryFeatures(const UObject* WorldContext, UInventoryComponent* Inventory);
// --- Direct feature operations (debug tools, gameplay) ---
UFUNCTION(BlueprintCallable, Category = "Item|Features", meta = (WorldContext = "WorldContext"))
static void ForceRot(const UObject* WorldContext, UPARAM(ref) FItemInstanceData& Item, FName& OutTransformItemId);
UFUNCTION(BlueprintCallable, Category = "Item|Features")
static void BreakItem(UPARAM(ref) FItemInstanceData& Item);
UFUNCTION(BlueprintCallable, Category = "Item|Features")
static void DrainBattery(UPARAM(ref) FItemInstanceData& Item, float DrainPerSecond, float Seconds);
UFUNCTION(BlueprintCallable, Category = "Item|Features")
static float AddFuel(UPARAM(ref) FItemInstanceData& Item, float Amount, float MaxFuel);
/** Moves up to Amount of fuel from one item to another, respecting ToMaxFuel. Returns moved. */
UFUNCTION(BlueprintCallable, Category = "Item|Features")
static float TransferFuel(UPARAM(ref) FItemInstanceData& From, UPARAM(ref) FItemInstanceData& To, float Amount, float ToMaxFuel);
UFUNCTION(BlueprintCallable, Category = "Item|Features")
static void SetWetness(UPARAM(ref) FItemInstanceData& Item, float Wetness);
};