/// <summary>
/// Register a listener to a group of keys.
/// </summary>
public void AddListener(IEnumerable <string> keys, DataChangeAction eventCallback)
{
foreach (var key in keys)
{
AddListener(key, eventCallback);
}
}
/// <summary>
/// Register a key binding callback.
/// </summary>
protected void BindBlackboard <ValueType>(string key, Action <ValueType> onUpdateCallback)
{
if (Blackboard == null)
{
Debug.LogError("Failed to find a valid Blackboard to bind key!");
}
DataChangeAction onChangeAction = (k, v, b) => onUpdateCallback(b.Get <ValueType>(k));
Blackboard.AddListener(key, onChangeAction);
registeredListeners.Add(new UIBindListener(key, onChangeAction));
}
/// <summary>
/// Remove a listener from a key.
/// </summary>
public void RemoveListener(string key, DataChangeAction eventCallback)
{
if (string.IsNullOrWhiteSpace(key))
{
throw new ArgumentNullException("key", "Invalid key name to remove callback!");
}
if (eventCallback == null)
{
return;
}
if (!blackboardEvents.ContainsKey(key))
{
return;
}
blackboardEvents[key].RemoveListener(eventCallback);
}