public void Kill()
{
MonoBehaviour mono = transform.GetComponent <MonoBehaviour>();
mono.StopCoroutine(coroutine);
IDOTween.getInstance().Remove(this);
}
//constructor
public Tween(string tid, Vector3 target, float duration, Transform transform, Coroutine coroutine)
{
this.tid = tid;
this.target = target;
this.duration = duration;
this.transform = transform;
this.coroutine = coroutine;
IDOTween.getInstance().Add(this);
}