class_name AutoPathFollow extends PathFollow3D

@export var speed: float = 1.0
@export var pause_at_ends: float = 1.0

@onready var _prev_position := global_position

var _velocity := Vector3.ZERO

var direction: float = 1.0
var pause_timer: float = 0.0
var velocity: Vector3:
	get():
		return _velocity
var paused: bool:
	get():
		return pause_timer > 0.0
	set(value):
		if value:
			pause_timer = INF
		else:
			pause_timer = 0.0

func _physics_process(delta: float) -> void:
	if pause_timer > 0.0:
		pause_timer -= delta
	else:
		progress += direction*speed*delta
		if !loop && (
			(direction > 0.0 && progress_ratio >= 1.0) ||
			(direction < 0.0 && progress_ratio <= 0.0)
		):
			progress_ratio = clamp(progress_ratio, 0.0, 1.0)
			direction *= -1.0
			pause_timer = pause_at_ends
	_velocity = (global_position - _prev_position).normalized()*speed
	_prev_position = global_position