Roll a ball

PlayerController

using UnityEngine;using UnityEngine.UI;using System.Collections;public class PlayerController : MonoBehaviour {    public float speed;    public Text countText;    public Text winText;    private Rigidbody rb;    private int count;    void Start ()    {        rb = GetComponent<Rigidbody>();        count = 0;        SetCountText ();        winText.text = "";    }    void FixedUpdate ()    {        float moveHorizontal = Input.GetAxis ("Horizontal");        float moveVertical = Input.GetAxis ("Vertical");        Vector3 movement = new Vector3 (moveHorizontal, 0.0f, moveVertical);        rb.AddForce (movement * speed);    }    void OnTriggerEnter(Collider other)     {        if (other.gameObject.CompareTag ( "Pick Up"))        {            other.gameObject.SetActive (false);            count = count + 1;            SetCountText ();        }    }    void SetCountText ()    {        countText.text = "Count: " + count.ToString ();        if (count >= 12)        {            winText.text = "You Win!";        }    }}

Rotator

using UnityEngine;using System.Collections;public class Rotator : MonoBehaviour {    void Update ()     {        transform.Rotate (new Vector3 (15, 30, 45) * Time.deltaTime);    }}

CameraController

using UnityEngine;using System.Collections;public class CameraController : MonoBehaviour {    public GameObject player;    private Vector3 offset;    void Start ()    {        offset = transform.position - player.transform.position;    }    void LateUpdate ()    {        transform.position = player.transform.position + offset;    }}