/// <summary>
/// Add a listener if it isn't already a listener
/// </summary>
/// <param name="listen">The listen.</param>
public virtual void addEngineEventListener(EngineEventListener listen)
{
if (!listeners.Contains(listen))
{
listeners.Add(listen);
}
}
/// <summary>
/// Remove a listener
/// </summary>
/// <param name="listen">The listen.</param>
public virtual void removeEngineEventListener(EngineEventListener listen)
{
listeners.Remove(listen);
}
public ResolveEngine Listen(EngineEventListener listener)
{
listeners += listener;
return(this);
}
