IGP-Fan-Reference/Services/Immortal/TimingService.cs

namespace Services.Immortal;

public class TimingService : ITimingService
{
    private int _timing = 1500;

    public void Subscribe(Action? action)
    {
        OnChange += action;
    }

    public void Unsubscribe(Action? action)
    {
        OnChange -= action;
    }

    public int GetTiming()
    {
        return _timing;
    }

    public void SetTiming(int timing)
    {
        if (_timing != timing)
        {
            _timing = timing;
            NotifyDataChanged();
        }
    }

    private event Action? OnChange;

    private void NotifyDataChanged()
    {
        OnChange?.Invoke();
    }
}