/// <summary>
/// Handles state changes related to mementos
///
/// If this enemy's nest is empty, it checks nearby for any abandoned mementos.
/// If a memento is found, it changes the enemy state to TrackingMemento and
/// sets the navAgent's destination
/// If this enemy's nest is empty, and it's linked to another nest that does
/// have a memento, it changes the enemy state to TargetingMemento and sets
/// the navAgent's destination
/// </summary>
/// <return> true if the enemy state was changed, false otherwise </return>
/// <thoughts>
/// This method is called Check, but it does more than that, and it shouldn't.
/// TODO: Break the contents of this function into two pieces:
/// AttemptStateChange()
/// ProcessStateChange()
/// </thoughts>
private bool CheckMemento()
{
if (NEST != null && NEST.MEMENTO == null)
{
//Check for any memento's out of Nests
GameObject memento = _mementoUtils.GetClosestMemento(transform.position);
Memento mc = memento.GetComponent <Memento> ();
if (mc != null && Vector3.Distance(mc.transform.position, transform.position) <= MEMENTO_SEARCH_RADIUS && mc.GetHeldBy() == Memento.HeldBy.None && !mc.IN_NEST)
{
//Debug.Log("<color=blue>AI Debug: State Change: Patrolling -> TargetingMemento (nearby)</color>");
ChangeState(EnemyState.TargetingMemento);
_navAgent.SetDestination(memento.transform.position);
return(true);
}
else if (NEST != null && NEST.NEST_TO_TAKE_FROM != null && NEST.NEST_TO_TAKE_FROM.MEMENTO != null && Time.time - NEST.TIME_MEMENTO_ENTERED >= DELAY_BEFORE_TAKING_FROM_LINKED_NEST)
{
//Debug.Log("<color=blue>AI Debug: State Change: Patrolling -> TargetingMemento (other nest)</color>");
ChangeState(EnemyState.TargetingMemento);
_navAgent.SetDestination(NEST.NEST_TO_TAKE_FROM.MEMENTO.transform.position);
return(true);
}
}
return(false);
}