extends Node2D

signal shot

const INVADER = preload("res://scenes/invader.tscn")

var can_spawn = false

func _process(delta: float) -> void:
	if can_spawn:
		spawn_invader()
		$SpawnTimer.wait_time = randi_range(20, 40)


func _on_spawn_timer_timeout() -> void:
	can_spawn = true

func spawn_invader() -> void:
	var invader := INVADER.instantiate()
	invader.shot.connect(player_shot)
	$Invaders.add_child(invader)
	can_spawn = false
	$SpawnTimer.start()

func player_shot() -> void:
	shot.emit()