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Quick Bar Component

Overview

UMIPQuickBarComponent manages the quick slots (hotbar): use item or ability by index, key released handling, drag-and-drop (OnDropped), add/remove slot entries. It creates UMIPQuickBarSlotInstance for items (from FMIPItemEntry) or abilities (from FGameplayTag), binds to player inventory widget creation and item add/remove, and delegates to UMIPPlayerServerIMC for use-item server RPC. UMIPEnhancedInputComponent calls TryUseQuickSlot / OnQuickSlotKeyReleased when the player presses quick slot keys.

Key traits:

  • Attachment: PlayerController (client).
  • API: TryUseQuickSlot(InQuickSlotIndex), OnQuickSlotKeyReleased(InQuickSlotIndex), OnDropped(Payload, InQuickBarSlotWidget), AddNewQuickBarSlotEntry(InQuickBarSlotInstance), FindAndRemoveQuickBarSlotInstance(InQuickBarIndex), GetQuickBarEntry(QuickBarSlotIndex).
  • Delegates: QuickBarEntryChangedDelegate, OnTryUsingQuickSlotDelegate, OnQuickSlotKeyReleasedDelegate.

All paths below are relative to Plugins/ModularInventoryPlus/Source/ModularInventoryPlus/.

Key Classes & Files

Class File
UMIPQuickBarComponent Public/QuickBar/MIPQuickBarComponent.h

Integration

  • UMIPEnhancedInputComponent – quick slot pressed/released/held → TryUseQuickSlot, OnQuickSlotKeyReleased.
  • UMIPPlayerServerIMC – UseItemOnServerByItemPrimaryTag or similar for item use; quick bar holds item/ability reference per slot.
  • UMIPClientWidgetsManagerComponent – quick bar container widget; slot widgets for drag-drop.