class_name SceneManager extends Node2D

@onready var game_node: Node2D = $".."
@onready var crates: Node2D = $"../crates"
var grenade = preload("res://scenes/grenade.tscn")

func _ready() -> void:
	print("scene manager is ready")
	game_node.destroy.connect(destroy)
	build_level()

func _process(delta: float) -> void:
	pass

func build_level() -> void:
	update_crates()
	
func make_grenade(grenade_pos: Transform2D, grenade_dir: int) -> void:
	print("scene manager making grenade")
	var g:Grenade = grenade.instantiate()
	g.transform = grenade_pos
	owner.add_child(g)
	g.apply_central_impulse(Vector2(grenade_dir, 1)*400)
	
func update_crates() -> void:
	var crate_total:int = 0
	if crates:
		for obj in crates.get_children():
			if obj is BrownBox:
				if not obj.tree_exited.is_connected(update_crates):
					obj.tree_exited.connect(update_crates)
				crate_total += 1
	game_node.set_crate_num(crate_total)
	
func destroy(body):
	if body is BrownBox:
		body.queue_free()