extends Node2D

@export var segements_holder : Node2D
var segements : Array[snake_segment]
@export var SNAKE_SPEED : float = 0.2
@export var snake_line : Line2D
@export var player : Node2D

# Called when the node enters the scene tree for the first time.
func _ready() -> void:
	Router.activate_seg.connect(activate_segment)
	#segements = get_children() as Array[snake_segment]
	segements.assign(segements_holder.get_children())
	for i in segements.size():
		if i == 0:
			segements[i].is_head = true
			
		else:
			segements[i].next_segment = segements[i-1]
		if i < segements.size()-1:
				segements[i].door.prev_seg = segements[i+1]
		segements[i].snake_speed = SNAKE_SPEED
		segements[i].seg_id = i
		#segements[i].z_index = 100-i
	activate_segment(0)


# Called every frame. 'delta' is the elapsed time since the previous frame.
func _process(delta: float) -> void:
	redraw_line()
	pass

func activate_segment(act_segment : int):
	Router.current_seg = segements[act_segment]
	Router.cur_id = act_segment
	player.reparent(Router.current_seg)
	for i in segements.size():
		if act_segment == i:
			segements[i].become_real()
			
		else: 
			segements[i].become_fake()
			

func redraw_line():
	snake_line.clear_points()
	for segment in segements:
		snake_line.add_point(segment.global_position)