void OnEnable ()
{
if (Lesson.GetComponent<LessonControl> ().IsReached)
{
GetComponent<UI2DSprite>().sprite2D = Active;
}
else
{
GetComponent<UI2DSprite>().sprite2D = Locked;
}
}
void OnClick ()
{
Debug.Log ("CLICKED!");
if (Lesson.GetComponent<LessonControl> ().IsReached) {
GameObject.Find("MainControl").SendMessage ("StartLesson");
Lesson.SetActive (true); }
}