CatStation/Content.Shared/Humanoid/HideableHumanoidLayersComponent.cs

using Content.Shared.Inventory;
using Robust.Shared.GameStates;

namespace Content.Shared.Humanoid;

[NetworkedComponent, RegisterComponent, AutoGenerateComponentState(true)]
[Access(typeof(SharedHideableHumanoidLayersSystem))]
public sealed partial class HideableHumanoidLayersComponent : Component
{
    /// <summary>
    ///     A map of the visual layers currently hidden to the equipment
    ///     slots that are currently hiding them. This will affect the base
    ///     sprite on this humanoid layer, and any markings that sit above it.
    /// </summary>
    [DataField, AutoNetworkedField]
    public Dictionary<HumanoidVisualLayers, SlotFlags> HiddenLayers = new();

    /// <summary>
    ///     Which layers of this humanoid that should be hidden on equipping a corresponding item..
    /// </summary>
    [DataField]
    public HashSet<HumanoidVisualLayers> HideLayersOnEquip = [HumanoidVisualLayers.Hair];

    /// <summary>
    ///     Client only - which layers were last hidden
    /// </summary>
    [ViewVariables]
    public HashSet<HumanoidVisualLayers> LastHiddenLayers = new();
}

/// <summary>
/// Raised on an entity when one of its humanoid layers changes its visibility
/// </summary>
[ByRefEvent]
public readonly record struct HumanoidLayerVisibilityChangedEvent(HumanoidVisualLayers Layer, bool Visible);