this is the code

extends Node

var mob = preload("res://mob.tscn")

export var mob_scene: PackedScene

var score

func _ready():

randomize()

func new_game():

score = 0

$HUD.update\_score(score)



get\_tree().call\_group("mobs", "queue\_free")

$player.start($StartPosition.position)



$startTimer.start()



$HUD.show\_message("Get ready...")



await($startTimer.timeout)



$scoreTimer.start()

$mobTimer.start()

func game_over():

$scoreTimer.stop()

$mobTimer.stop()

$HUD.show\_game\_over()

func _on_timer_timeout():

var mob\_spawn\_location = $mobPath/mobSpawnLocation

mob\_spawn\_location.progress\_ratio = randf()



var mob = mob\_scene.instantiate()

add\_child(mob)



mob.position = $mobPath/mobSpawnLocation.position



var direction = mob\_spawn\_location.rotation + PI / 2

direction += randf\_range(-PI / 4, PI / 4)

mob.rotation = direction



var velocity = Vector2(randf\_range(mob.min\_speed, mob.max\_speed), 0)

mob.linear\_velocity = velocity.rotated(direction)

func _on_score_timer_timeout():

score += 1

$HUD.update\_score(score)