class_name SceneManager extends Node2D

const BulletScn = preload("res://scenes/bullet.tscn")
@onready var game: Node2D = $".."

var bullets: Array[Bullet] = []
const MAX_BULLETS = 10
var current_bullet = 0

# makes and recycles bullets
func bulletFactory() -> Bullet:
	if len(bullets) < MAX_BULLETS:
		# create new
		var b = BulletScn.instantiate()
		b.bulletDamageSignal.connect(game.bulletDamage)
		add_child(b)
		bullets.append(b)
		return b
	else:
		# recycle
		var i = current_bullet
		current_bullet = (current_bullet + 1) % MAX_BULLETS
		bullets[i].visible = true
		return bullets[i]


func makeBullet(pos: Transform2D, dir: int) -> Node2D:
	var b = bulletFactory()
	#b.position = pos.get_origin()
	b.transform = pos
	b.setSpeed(dir * 700)
	return b