extends RigidBody2D
@export var speed = 400
var score : int = 0
@export var bullet_scene: PackedScene

@export var life_max : float = 30
@onready var life : float = life_max

var screen_size

# Called when the node enters the scene tree for the first time.
func _ready() -> void:
	screen_size = get_viewport_rect().size
	$ShootTimer.timeout.connect(_on_shoot_timer_timeout)


# Called every frame. 'delta' is the elapsed time since the previous frame.
func _physics_process(_delta: float) -> void:
	var velocity = Vector2.ZERO # The player's movement vector.
	if Input.is_action_pressed("move_right"):
		velocity.x += 1
	if Input.is_action_pressed("move_left"):
		velocity.x -= 1
	if Input.is_action_pressed("move_down"):
		velocity.y += 1
	if Input.is_action_pressed("move_up"):
		velocity.y -= 1
	if velocity.length() > 0:
		velocity = velocity.normalized() * speed
		rotation = velocity.angle() #velocity.angle() + PI/2
	#position += velocity * delta
	apply_central_force(velocity)
	
	var map_size = Vector2(1000, 1000)
	var velocity2 = Vector2.ZERO
	if position.x <= 0 or position.x >= map_size.x:
		velocity2.x = -linear_velocity.x
	if position.y <= 0 or position.y >= map_size.y:
		velocity2.y = -linear_velocity.y
	if velocity2.length():
		linear_velocity = velocity2
	

func _on_shoot_timer_timeout():
	_shoot(Vector2(0, 40))
	_shoot(Vector2(0, -40))
	
func _shoot(socket : Vector2):
	var bullet = bullet_scene.instantiate()
	bullet.position = position + socket.rotated(self.rotation)
	bullet.rotation = self.rotation + PI/2 * sign(socket.y)
	bullet.instigator = self
	get_parent().add_child(bullet)

func take_damage(damage : float):
	life -= damage
	if life <= 0:
		#get_tree().reload_current_scene()
		get_tree().paused = true
		$GameOverScreen.show()

func add_score(score_to_add : int):
	self.score += score_to_add
	$SFXGetCoin.play()