Automaton - Unity/C#

public class Director : MonoBehaviour
{
	// Declaring and Initializing variables
	public GameObject player;                   // Reference to the player
	public GameObject stalker;                  // Reference to the stalker
	public List<GameObject> defAreaWaypoints;   // List of the default waypoints that the stalker will follow

	// Called when the script is instantiated
	private void Start()
	{
		// Starts the enemy on the default path
		stalker.GetComponent<StalkerEnemy>().waypoints = defAreaWaypoints;

		Debug.Log("defArea: " + defAreaWaypoints[0]);
		Debug.Log("Enemy Waypoints" + stalker.GetComponent<StalkerEnemy>().waypoints[0]);
		
		// Starts the hint routine
		StartCoroutine(GiveHintRoutine());
	}

	// Coroutine for given the stalker a hint
	private IEnumerator GiveHintRoutine()
	{
		// Defines the amount of time between coroutine execution
		WaitForSeconds waitTime = new WaitForSeconds(15f);

		// Continuously runs the hint given function
		while (true)
		{
			yield return waitTime;
			GiveHint();
		}
	}

	// Function that gives hint to the enemy
	private void GiveHint()
	{
		stalker.GetComponent<StalkerEnemy>().waypoints = player.GetComponent<PlayerAreaTracker>().areaEntered.transform.parent.GetComponent<CollisionDetection>().waypointsList;
		Debug.Log(player.GetComponent<PlayerAreaTracker>().areaEntered.transform.parent.GetComponent<CollisionDetection>().waypointsList[0]);
	}
}

public class TaskPatrol : Action
{
	// Declaring and Initializing variables
	[SerializeField]
	private GameObject enemy;               // Reference to the enemy game object
	[SerializeField]
	private float speed;                    // Patrolling speed of the enemy
	private int currentWaypointIndex = 0;   // Index of the waypoint currently followed by the enemy

	// Task executed by the behavior tree
	public override TaskStatus OnUpdate()
	{
		// Only executute when condition is met
		if (!enemy.GetComponent<StalkerEnemy>().isPatrol) 
		{
			return TaskStatus.Failure;
		}

		// Animate patrolling
		enemy.GetComponent<Animator>().SetBool("isRunning", false);
		enemy.GetComponent<Animator>().SetBool("isPatrolling", true);

		// Gets the list of waypoints currently followed by the stalker
		List<GameObject> waypoints = enemy.GetComponent<StalkerEnemy>().waypoints;

		// Makes sure the enemy is able to move and the speed is slowed
		enemy.GetComponent<NavMeshAgent>().isStopped = false;
		enemy.GetComponent<NavMeshAgent>().speed = speed;

		// Set the general viewing radius
		enemy.GetComponent<StalkerViewing>().generalViewRadius = 14;

		enemy.GetComponent<StalkerViewing>().generalViewAngle = 210;

		// Resets the waypoint index if it is over the length of the waypoint list
		if (currentWaypointIndex == int.MaxValue)
		{
			currentWaypointIndex = 0;
		}

		// Gets the current waypoint that the enemy is following
		GameObject wp = waypoints[currentWaypointIndex % waypoints.Count];

		//Debug.Log(waypoints[currentWaypointIndex % waypoints.Count]);
		
		// The enemy is close enough to the waypoint
		if (Vector3.Distance(enemy.transform.position, wp.transform.position) < 1.5f)
		{
			currentWaypointIndex += 1;
		}
		// Enemy follows the current waypoint
		else
		{
			enemy.GetComponent<NavMeshAgent>().destination = wp.transform.position;
		}

		return TaskStatus.Success;
	}
}

public class TaskChase : Action
{
	// Declaring and Initializing variables
	[SerializeField]
	private GameObject enemy;             // Reference to the enemy game object
	[SerializeField] 
	private GameObject player;            // Reference to the player game object

	// Task executed by the behavior tree
	public override TaskStatus OnUpdate()
	{
		// Update the last player position
		enemy.GetComponent<StalkerEnemy>().lastPlayerPosition = player.transform.position;

		// Enemy can see the player
		if (enemy.GetComponent<StalkerViewing>().isPlayerGeneralSeen) 
		{
			// Animates running
			enemy.GetComponent<Animator>().SetBool("isPatrolling", false);
			enemy.GetComponent<Animator>().SetBool("isRunning", true);

			// Sets multiple attributes of the navmesh for chasing the player
			enemy.GetComponent<NavMeshAgent>().speed = 3.0f;
			enemy.GetComponent<NavMeshAgent>().isStopped = false;
			enemy.GetComponent<NavMeshAgent>().SetDestination(player.transform.position);

			// Increase the general viewing radius
			enemy.GetComponent<StalkerViewing>().generalViewRadius = 17;

			//  Increase the general view radius
			enemy.GetComponent<StalkerViewing>().generalViewAngle = 250;

			return TaskStatus.Success;
		}
		else
		{
			enemy.GetComponent<StalkerEnemy>().EnemyStatePatrol();
			return TaskStatus.Failure;
		}
	}
}