extends Area

export(float) var speed = 30
export(float) var attractRange = 10
export(float) var lifeTime = 5
var enemies = []
var defaultTarget
var moveDirection = Vector3()


func init(direction,target):
	$Timer.wait_time = lifeTime
	$Timer.start()
	$AttractCollision.shape.radius = attractRange

	setDirection(direction)
	$TopWeapon.look_at(translation - moveDirection,Vector3(0,1,0))
	$Top.look_at(translation - moveDirection,Vector3(0,1,0))
	setTarget(target)

func setDirection(direction):
	moveDirection = direction

func _process(delta):
	if $Timer.is_stopped(): return
	translate(moveDirection * speed * delta)
	searchForEnemies()

func searchForEnemies():
	for body in get_overlapping_bodies():
		var newBody = weakref(body)
		if !enemies.has(newBody):
			enemies.append(newBody)
			setEnemyTarget(newBody,self)

func setTarget(target):
	defaultTarget = target

func setEnemyTarget(enemy,newTarget):
	if enemy.get_ref():
		enemy.get_ref().setTarget(newTarget)

func explode():
	pass

func restoreTarget():
	for enemy in enemies:
		setEnemyTarget(enemy,defaultTarget)

func _on_Timer_timeout():
	restoreTarget()
	queue_free()