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GIS1.2 Release Notes

Release notes for Generic Inventory System v1.2

罗传月武(YueWu)

Author

罗传月武(YueWu)

专注游戏开发和Web技术。

Created: Jul 21, 2026Updated: Oct 14, 2026

Table of contents

Generic Inventory System 1.2

Changes since 1.1.1. Equipment is no longer tied to a Pawn. Crafting can use separate inventories, evaluate first, and roll back on failure. Slot collections can add or remove by slot name.

Added

  • Hotbars and equipment slots can be addressed by name. A slot collection can create an item from a GIS.Slots definition, or remove a count from that slot, without walking stacks first.
  • Vehicles, containers, and other non-Pawn actors can own equipment. UGIS_EquipmentSystemComponent is a UActorComponent. Initialization looks for inventory on the owner Actor, then the Controller. C++ that searched for UPawnComponent will miss it.
  • Mac is allowed for runtime and editor modules. This release targets Unreal Engine 5.8.

Changed

  • World drops also broadcast item-info events on a listen server. The authority calls OnRep_ItemInfo after writing. UI that only listened on clients can now refresh on the host.
  • Writes that break slot rules are rejected. AddItemInternal calls IsItemFitWithSlot. Tool or cheat writes that only checked occupancy and stacking can now fail.
  • Currency batch add/remove is all-or-nothing. Crafting commit uses these paths, so a failed craft no longer leaves a half-spent wallet.
  • Query-by-definition fills the caller’s array. GetItemInfosByDefinition no longer aliases the output. Crafting evaluation sees the full ingredient list.
  • Removing a non-unique item by StackId will not take a different stack of the same definition. Fallback to “same definition” happens only when StackId is invalid.
  • Settings names match the other Generic plugins. UGIS_InventorySystemSettings is now UGIS_DeveloperSettings. Plugin config is DefaultGenericInventorySystem.ini.

Removed

  • Equipment ownership is no longer Pawn-centered. ReceiveOwningPawn / GetOwningPawn and the Pawn attach helpers are gone. Keep patching Pawn-only APIs and vehicles never plug in.
  • Old crafting query structs and the ingredient cache are gone. CheckIfEnoughItemIngredients and SelectedItemsCache were deleted. Subclasses should use request evaluate / commit / rollback hooks.

Upgrade Notes

Medium risk, partly source-breaking. Equipment lookups, custom equipment instances, overridden crafting components, and slot-write callers need a pass. Skipping it fails to compile, or add/craft calls start being rejected at runtime.

  1. Change UGIS_InventorySystemSettings to UGIS_DeveloperSettings. If the host copied BaseGenericInventorySystem.ini, confirm it now loads DefaultGenericInventorySystem.ini.
  2. Look up the equipment component as a UActorComponent. Custom instances should implement ReceiveOwningActor / GetOwningActor.
  3. Existing Craft / CanCraft calls usually still work. Overrides of item selection, ingredient removal, or ProduceCraftingOutput as the default commit path need the new request hooks.
  4. Code that assumed slot-definition rules were not enforced on write must check callers against those rules.