crystall-punk-14/Content.Client/Cabinet/ItemCabinetSystem.cs

using Content.Shared.Cabinet;
using Robust.Client.GameObjects;

namespace Content.Client.Cabinet;

public sealed class ItemCabinetSystem : VisualizerSystem<ItemCabinetVisualsComponent>
{
    protected override void OnAppearanceChange(EntityUid uid, ItemCabinetVisualsComponent component, ref AppearanceChangeEvent args)
    {
        if (args.Sprite == null)
            return;

        if (args.Component.TryGetData(ItemCabinetVisuals.IsOpen, out bool isOpen)
            && args.Component.TryGetData(ItemCabinetVisuals.ContainsItem, out bool contains))
        {
            var state = isOpen ? component.OpenState : component.ClosedState;
            args.Sprite.LayerSetState(ItemCabinetVisualLayers.Door, state);
            args.Sprite.LayerSetVisible(ItemCabinetVisualLayers.ContainsItem, contains);
        }
    }
}

public enum ItemCabinetVisualLayers
{
    Door,
    ContainsItem
}