extends ParallaxBackground

@export var bg_texture: CompressedTexture2D
@export var scroll_speed: float = 15

@onready var sprite_2d: Sprite2D = $ParallaxLayer/Sprite2D
# alternative implementation of scrolling effect using tween
var tween: Tween

func _ready() -> void:
  tween = create_tween().set_loops()
  tween.tween_property(sprite_2d, "region_rect:position", Vector2(64,64), 64.0/scroll_speed)
  tween.tween_property(sprite_2d, "region_rect:position", Vector2.ZERO, 0)





## Animate sprite region using scroll_speed to give motion effect
#func _process(delta: float) -> void:
  #sprite_2d.region_rect.position += delta * Vector2(scroll_speed, scroll_speed)
  #if sprite_2d.region_rect.position >= Vector2(64,64):
    #sprite_2d.region_rect.position = Vector2.ZERO
  #pass