extends Node2D
class_name LightSemaphore

@export var dependantSemaphore : LightSemaphore = null
@export var hasOwnTimerEnabled = true
@onready var lights := [$Sempahore/green, $Sempahore/yellow, $Sempahore/red ];
@export var light = 0;

func _ready() -> void:
	$brakeZone.get_child(1).disabled = !light;
	for i in range (lights.size()):
		lights[i].visible = i == light

func change_light():
	light += 1;
	if light > 2:
		light = 0;
	$brakeZone.get_child(1).disabled = !light;
	for i in range (lights.size()):
		lights[i].visible = i == light

func _on_timer_timeout() -> void:
	if hasOwnTimerEnabled:
		if light == 0:
			$Timer.wait_time = 1;
		else:
			$Timer.wait_time = 5;
		$Timer.start()
		change_light();
	if dependantSemaphore:
		dependantSemaphore.change_light();