class_name SceneManager extends Node2D

const bullet_scene = preload("res://scenes/bullet.tscn")

@onready var game: Node2D = $".."
@onready var triggers: Node2D = $"../triggers"

var MAX_BULLET := 50
var available_bullets = []

func _ready() -> void:
	for i in range(MAX_BULLET):
		var new_bullet = bullet_scene.instantiate()
		new_bullet.bulletHitSignal.connect(game.onBulletHitSignal)
		available_bullets.push_front(new_bullet)
	
	if triggers:
		for trig in triggers.get_children():
			if trig is Trigger:
				trig.areaTriggerSignal.connect(game._on_trigger)
			

func make_bullet(start_position: Transform2D, speed: int):
	var new_bullet = bullet_factory(start_position, speed)
	if new_bullet:
		owner.add_child(new_bullet)

func reload_bullet(bullet: Bullet):
	available_bullets.push(bullet)

func bullet_factory(start_position: Transform2D, speed: int) -> Bullet:
	var shot_bullet = available_bullets.pop_back()
	shot_bullet.global_transform = start_position
	shot_bullet.setSpeed(speed)
	
	available_bullets.push_front(shot_bullet)
	
	return shot_bullet