OldThink/Content.Shared/SSDIndicator/SSDIndicatorSystem.cs

using Robust.Shared.Player;

namespace Content.Shared.SSDIndicator;

/// <summary>
///     Handle changing player SSD indicator status
/// </summary>
public sealed class SSDIndicatorSystem : EntitySystem
{
    public override void Initialize()
    {
        SubscribeLocalEvent<SSDIndicatorComponent, PlayerAttachedEvent>(OnPlayerAttached);
        SubscribeLocalEvent<SSDIndicatorComponent, PlayerDetachedEvent>(OnPlayerDetached);
    }

    private void OnPlayerAttached(EntityUid uid, SSDIndicatorComponent component, PlayerAttachedEvent args)
    {
        component.IsSSD = false;
        Dirty(uid, component);
    }

    private void OnPlayerDetached(EntityUid uid, SSDIndicatorComponent component, PlayerDetachedEvent args)
    {
        component.IsSSD = true;
        Dirty(uid, component);
    }
}