extends Node
var crate = preload("res://scenes/crate.tscn")
var bullet = preload("res://scenes/bullets.tscn") 
# Called when the node enters the scene tree for the first time.
var bulletPool:Array = []  #start off with it empty; no bullets
#crate stuff
var cratePool:Array = []
@onready var box_trap_target: Node2D = $"../BoxTrapTarget"

#called when the node enters the scene tree fro the first time 
func _ready() -> void:  #function that runs exactly run time.. safe place to do any configurations there
	#pool all the crates
	for obj in owner.get_children():
		if obj.is_in_group("pushables"):
			cratePool.push_back(obj)
	print("Total crates on screen: "+str(cratePool.size()))

func boxTrap():
	print("Trigger a box trap!")
	var myCrate= crateFactory()  #gonna ask factory for our crate
	myCrate.transform = box_trap_target.transform
	owner.add_child(myCrate)
		
func bulletFactory():
	#makes bullets!
	var myBullet
	print("total bullets in play "+str(bulletPool.size()))
	if bulletPool.size() > 3:
		myBullet = bulletPool.pop_front()  #if you got 3 bullets in play already, gonna take oldest bullet in pool and give you that
	else:
		myBullet = bullet.instantiate()
		owner.add_child(myBullet)
	#or recycles bullets
	return myBullet

func placeBullet(speed, markerpos):
	print("SceneManager: make a bullet")
	var myBullet = bulletFactory()
	bulletPool.push_back(myBullet) #everytime we ask for bullet it gonna be added to the pool
	print("Total bullets in play: "+str(bulletPool.size()))
	#set the speed of the bullet
	myBullet.setSpeed(speed)
	#set of position of the bullet
	myBullet.transform = markerpos
	#make the bullet visible by adding it
	
func crateFactory():
	var myCrate = crate.instantiate()
	myCrate.add_to_group("pushables")
	return myCrate