namespace Syntriax.Engine.Core.Abstract;

/// <summary>
/// Represents an entity which can be active or not.
/// </summary>
public interface IActive
{
    /// <summary>
    /// Event triggered when the <see cref="IsActive"/> state of the <see cref="IActive"/> changes.
    /// </summary>
    event ActiveChangedEventHandler? OnActiveChanged;

    /// <summary>
    /// The value indicating whether the <see cref="IActive"/> is enabled.
    /// </summary>
    bool IsActive { get; }

    delegate void ActiveChangedEventHandler(IActive sender, bool previousState);
}