class_name SceneManager
extends Node2D

var bullet = preload("res://scenes/bullet.tscn")
var grenade = preload("res://scenes/grenade.tscn")
var bullet_array = []
var total_allowed_bullets : int = 7

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

func make_bullet(_bullet_position, _bullet_speed) -> void:
	print("make a bullet; put it in the world")
	var my_bullet = bullet_factory()
	game.add_child(my_bullet)
	my_bullet.transform = _bullet_position
	my_bullet.set_speed(_bullet_speed)
	
func make_grenade(_grenade_position, _grenade_direction) -> void:
	print("SM make a grenade")
	var my_grenade : Grenade = grenade.instantiate()
	game.add_child(my_grenade)
	my_grenade.transform = _grenade_position
	my_grenade.apply_central_impulse(Vector2(_grenade_direction, -1) * 200)

func bullet_factory() -> Bullet:
	var my_bullet : Bullet
	if bullet_array.size() < total_allowed_bullets:
		# make a new bullet
		my_bullet = bullet.instantiate()
		game.add_child(my_bullet)
	else:
		my_bullet = bullet_array.pop_back()
	bullet_array.push_front(my_bullet)
	return my_bullet