extends Path2D


var is_mouse_in_path_follow_area: bool = false
var is_incantation_started: bool = false
var incantation_progress: float = 0.0

@onready var path_follow: Node2D = $PathFollow2D
@onready var path_follow_area: Area2D = $PathFollow2D/Area2D

func _ready():
	path_follow_area.mouse_entered.connect(func(): is_mouse_in_path_follow_area = true)
	path_follow_area.mouse_exited.connect(func(): 
		is_mouse_in_path_follow_area = false
		reset_incantation()
	)

func _draw():
	var points = curve.get_baked_points()
	for i in points.size():
		if i == 0: continue
		draw_line(points[i-1], points[i], Color.BLACK, 2.0)

var previous_offset: float
func _input(event):
	if event is InputEventMouseButton: 
		if event.is_pressed() and is_mouse_in_path_follow_area and not is_incantation_started:
			is_incantation_started = true
	if event is InputEventMouseMotion and is_incantation_started:
		var motion_event = event as InputEventMouseMotion
		var next_point = curve.get_closest_point(to_local(motion_event.global_position))
		var next_offset = curve.get_closest_offset(next_point)
		print(previous_offset, " " ,next_offset)
		if previous_offset <= 0.0:
			previous_offset = next_offset
		elif next_offset - previous_offset <= 0:
			return
		previous_offset = next_offset
		path_follow.position = next_point
		
func reset_incantation():
	is_incantation_started = false
	path_follow.position = curve.get_point_position(0)
	previous_offset = 0.0