extends Path

signal scene_finished

var offset = 0
var length = 0
var dir = 0
var run = false
var fadeout = false

func _ready():
	length = curve.get_baked_length()

func playforward():
	run = true
	dir = 1
	offset = 0
	fadeout = false
	get_node("Camera").make_current()
	
func playbackward():
	run = true
	dir = -1
	offset = length
	fadeout = false
	get_node("Camera").make_current()

func _process(delta):
	if run:
		offset += delta * dir
		if not fadeout:
			if dir > 0 and offset >= length-1 or dir < 0 and offset <= 1:
				emit_signal("scene_finished")
				fadeout = true
		var p1 = to_global(curve.interpolate_baked(offset))
		var p2 = to_global(curve.interpolate_baked(offset+dir))
		if p1 == p2:
			run = false
			return
		$Camera.look_at_from_position(p1,p2,Vector3.UP)