using UnityEngine;
using System.Collections;

public class CubeController : MonoBehaviour {


    public float target = 0.0f;
    public float speed = 45.0f;

	void OnMouseDown () {
		target -= 90;
	}

    void Update() {
        float angle = Mathf.MoveTowardsAngle(transform.eulerAngles.x, target, speed * Time.deltaTime);
        transform.eulerAngles = new Vector3(angle, 0, 0 );
    }
}