VRInventoryManager

Namespace: MolcaSDK.VR.Inventory
File: Assets/_MolcaSDK/_VR/Scripts/Inventory/VRInventoryManager.cs World-space inventory ring that follows the player head, toggles via Input System action, and stores XRGrabInteractable items dropped near the UI. Registers with VRInventorySubsystem when present for optional persistence.

When to use

Use VRInventoryManager when trainees should stash grabbed objects (e.g. after Grab step) into fixed slots, open/close the shelf with a controller button, and optionally sync state through VRInventorySubsystem.

Inspector setup

Field	Purpose
Player head	Forward/height reference for panel placement.
Right / left hand interactor	`NearFarInteractor` — grab events; both wired to store-on-release over inventory.
Inventory model prefab	Shell mesh (rim feedback optional via `_RimColor`).
Inventory slot prefab	Must include `VRInventoryItem`.
Toggle inventory action	`InputActionReference` — enables/disables in `Start` / `OnDestroy`.
Inventory distance / height	Offset in front of head (horizontal forward) and Y lift.
Max inventory items	Slot count; drives circular layout.
Persist inventory state	Passed to `VRInventorySubsystem.RegisterInventoryManager`.

If toggle action is missing, you get a warning and cannot open via input.

Code

Clear every slot and destroy stored objects (dispatches EventConstants.VR.ItemCleared per item):

using MolcaSDK.VR.Inventory;

public class ResetInventory : MonoBehaviour
{
    [SerializeField] private VRInventoryManager inventory;

    public void ClearAll() => inventory.ClearAllSlots();
}

React to EventConstants.VR.ItemStored, ItemRetrieved, InventoryOpened, InventoryClosed, etc., via EventDispatcher if other systems (scoring, steps) need hooks. IsInventoryVisualReady becomes true only after the open animation finishes — use it before ray/UI tests that assume the panel is fully visible.

API (key members)

Member	Description
`isInventoryActive`	Whether the panel is in “open” state (toggled).
`IsInventoryVisualReady`	True after open animation completes.
`interactor`	Exposes `rightHandInteractor` as `IXRSelectInteractor`.
`ClearAllSlots()`	Empties slots, destroys items, fires clear events.
`GetInventorySlots()`	All `VRInventoryItem` slots.
`GetAvailableSlot()`	First empty slot, or null.

Internal storage uses StoreItemInInventory when releasing a grab over the model.

Troubleshooting

Cannot open inventory — Assign toggle inventory action and ensure the action map is enabled for the active control scheme.
Items never store — Release must happen while hovering the inventory (within about 0.2 world units of the model per source); increase proximity or adjust prefab scale/position. You also need a free slot.
“Inventory Slot Prefab must have VRInventoryItem” — Add VRInventoryItem to slot prefab.
Persistence not restoring — Requires VRInventorySubsystem on RuntimeManager; persistInventoryState must be true and subsystem must register this manager.
Events not firing — RuntimeManager.InjectDependencies runs if EventDispatcher is not injected on this instance.

Grab step — items users carry into inventory
RuntimeManager — VRInventorySubsystem registration
EventDispatcher — inventory events

Unity Editor

VRInventoryManager component + inventory canvas.

VRInventoryManager in Unity Inspector or inventory UI — VR inventory setup

Overview

Common Tasks

Molca Core

Shared module (MolcaSDK)

Molca SDK - VR

Molca SDK - DT

When to use

Inspector setup

Code

API (key members)

Troubleshooting

Unity Editor

​When to use

​Inspector setup

​Code

​API (key members)

​Troubleshooting

​Related

​Unity Editor

When to use

Inspector setup

Code

API (key members)

Troubleshooting

Related

Unity Editor