private void Awake()
 {
     if (instance == null)
     {
         instance = this;
     }
     else
     {
         Debug.LogWarning("Instance already exists", this);
         Destroy(this.gameObject);
     }
 }
 void Start()
 {
     values = MeteorValues.instance;
 }
 void Start()
 {
     values = MeteorValues.instance;
     CreateMeteors();
 }
 void Start()
 {
     values   = MeteorValues.instance;
     lifeTime = values.particleMaxLifeTime;
 }