extends Camera2D

var horizontal_facing = 0
var camera_x_shift = 80

onready var prev_camera_pos = get_camera_position()
onready var tween = $ShiftTween


func _process(delta: float) -> void:
	_check_facing()
	prev_camera_pos = get_camera_position()


# TODO Smoothing the camera limits in godot ruins this
func _check_facing():
	var new_h_facing = sign(get_camera_position().x - prev_camera_pos.x)
	if new_h_facing != 0 && horizontal_facing != new_h_facing:
		horizontal_facing = new_h_facing
		var target_offset = camera_x_shift * new_h_facing

		tween.interpolate_property(
			self,
			"transform:origin:x",
			self.transform.origin.x,
			target_offset,
			1.2,
			Tween.TRANS_SINE,
			Tween.EASE_OUT
		)
		tween.start()