extends State

var threat: Node2D
var threshold: float = 100

func enter(previous_state_path: String, data := {}) -> void:
	if data.has("threat"):
		threat = data["threat"]
	else:
		# default behaviour; do nothing
		finished.emit(owner.fsm.States.IDLE, {})

func physics_update(_delta: float) -> void:
	if not is_instance_valid(threat) or GameManager.calc_distance(owner.position, threat.position) > threshold:		
		finished.emit(owner.fsm.States.IDLE, {}) 
		return
	owner.move(flee_from(threat.position))

func flee_from(pos: Vector2) -> Vector3:
	# FIXME: What is the argument "pos" and why is it unused?
	var diff = threat.position - owner.position
	diff = diff.normalized() * -1
	return Vector3(diff.x, diff.y ,0)