/// <summary>
/// Invokes all listeners
/// </summary>
private void InvokeAllListeners()
{
for (int index = Listeners.Count - 1; index >= 0; index--)
{
if (Listeners[index] == null)
{
Listeners.RemoveAt(index);
continue;
}
if (_debug)
{
Debug.Log($"Listener <b>{Listeners[index]}</b> was called.");
}
Listeners[index].OnEventInvoked();
}
}
/// <summary>
/// Removes the listener from the specified priority level.
/// </summary>
/// <param name="priority">Priority that the listener was registered under.</param>
/// <param name="callback">Function that was registered as a listener.</param>
public static void RemoveListener(int priority, EventCallback callback)
{
if (callback == null)
{
throw new ArgumentException(nameof(callback), $"Trying to remove a callback with null value from event type '{GenericTypeName}'.");
}
// Check there is a list of listeners for this priority
if (Listeners.TryGetValue(priority, out List <EventCallback> listeners))
{
listeners.Remove(callback);
// Remove this priority if there are no more listeners
if (listeners == null || listeners.Count == 0)
{
Listeners.RemoveAt(priority);
}
}
}