void OnCollisionEnter2D(Collision2D other)
    {
		if (other.gameObject.tag == "Platform")
		{
			coinlights ();
		}

    }

	void coinlights()
	{
		lightnum++;
		for (int i = 0; i < 5; i++) {
			Debug.Log ("test");

			if (counter >= 0.3f)
			{
				Debug.Log("first 4");
				lights [i].SetActive (true);
				counter = 0;
				coinlights ();
			}

		}
		if (lightnum == 4)
		{

		}
	}