球跟方塊（有材質）

using UnityEngine;
using System.Collections;

public class Player : MonoBehaviour
{
    public GameObject obj_Player;
    // Use this for initialization
    void Start()
    {

    }

    // Update is called once per frame
    void Update()
    {

        obj_Player = GameObject.Find("Sphere");
        if (Input.GetKeyDown(KeyCode.A))
        {
            obj_Player.transform.position += new Vector3(-0.5f, 0, 0);
        }
        else if (Input.GetKeyDown(KeyCode.D))
        {
            obj_Player.transform.position += new Vector3(0.5f, 0, 0);
        }
        else if (Input.GetKeyDown(KeyCode.W))
        {
            obj_Player.transform.position += new Vector3(0, 0, 0.5f);
        }
        else if (Input.GetKeyDown(KeyCode.S))
        {
            obj_Player.transform.position += new Vector3(0, 0, -0.5f);
        }
    }
}