class_name PlayerProjectile
extends Node2D

const EFFECT_TEXTURE := preload("res://assets/art/effects/effect_sheet.png")
const FRAME_COUNT := 4
const FRAME_TIME := 0.06
const LIFE_TIME := 1.2

var direction := Vector2.RIGHT
var speed := 360.0
var _age := 0.0
var _sprite: Sprite2D


func _init() -> void:
	_create_sprite()


func _ready() -> void:
	add_to_group("player_projectiles")
	if _sprite == null:
		_create_sprite()


func _create_sprite() -> void:
	_sprite = Sprite2D.new()
	_sprite.texture = EFFECT_TEXTURE
	_sprite.hframes = 6
	_sprite.vframes = 2
	_sprite.centered = true
	_sprite.scale = Vector2(2.0, 2.0)
	add_child(_sprite)


func _process(delta: float) -> void:
	_age += delta
	position += direction.normalized() * speed * delta
	_sprite.frame = int(_age / FRAME_TIME) % FRAME_COUNT
	if direction.x < 0.0:
		_sprite.flip_h = true
	if _age >= LIFE_TIME:
		queue_free()