extends Node

@onready var crates: Node2D = $"../Crates"
@onready var triggers: Node2D = $"../Triggers"
@onready var coins: Node2D = $"../Coins"
@onready var enemies: Node2D = $"../Enemies"
@onready var player: Player = $"../CharacterBody2D"

var bullet = preload("res://scenes/bullet.tscn")
var bulletArray = []
var totalAllowedBullets = 7

# Called when the node enters the scene tree for the first time.
func _ready() -> void:
	buildLevel()


# Called every frame. 'delta' is the elapsed time since the previous frame.
func _process(delta: float) -> void:
	pass


func buildLevel() -> void:
	# Reset controller timer
	Gamecontroller.reset()
	# tell the game controller
	Gamecontroller.numberOfCrates(countCrates())
	# Wire up signals
	Gamecontroller.levelCompleteSignal.connect(loadLevel)
	Gamecontroller.destroySignal.connect(destroy)
	Gamecontroller.playerDamage.connect(player._player_damage)
	Gamecontroller.playerDeath.connect(player._player_death)
	# player connection
	player.deathComplete.connect(Gamecontroller.death)
	
	# Connect trigger signals
	if triggers:
		for obj in triggers.get_children():
			if obj is Trigger:
				obj.triggerFired.connect(Gamecontroller._on_trigger_fired)
	# Connect coin signals
	if coins:
		for obj in coins.get_children():
			if obj is Coin:
				obj.coinCollectedSignal.connect(Gamecontroller._on_coin_collected)
	# Connect enemy signals
	if enemies:
		for obj in enemies.get_children():
			if obj is Slime:
				obj.playerDamageSignal.connect(Gamecontroller._on_player_damage)

func countCrates()->int:
	# count crates
	var totalCrates = 0
	for obj in crates.get_children():
		if obj is Crate:
			totalCrates += 1
	return totalCrates

func bulletFactory():
	var mybullet
	if bulletArray.size() < totalAllowedBullets:
		#new bullet
		mybullet = bullet.instantiate()
		mybullet.connect("bulletHit", Gamecontroller.bulletDamage)
		owner.add_child(mybullet)
	else:
		#recycled bullet
		mybullet = bulletArray.pop_back()	
	
	bulletArray.push_front(mybullet)
	return mybullet

func makeBullet(position, speed):
	print("Scene manager make bullet")
	var mybullet = bulletFactory()
	mybullet.setSpeed(speed)
	mybullet.transform = position

func loadLevel(level):
	get_tree().call_deferred("change_scene_to_file", level)

func destroy(body):
	if body is Crate:
		Gamecontroller.numberOfCrates(countCrates()-1)
	body.queue_free()