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using UnityEngine;
using System.Collections;

public class CameraController : MonoBehaviour {

    public GameObject player;
    //public 会被公开编辑，填充player

    private Vector3 offset;

    void Start ()
    {
        offset = transform.position - player.transform.position;
    }
    //https://unity3d.com/cn/learn/tutorials/projects/roll-ball-tutorial/moving-camera?playlist=17141
    void LateUpdate ()
    {
        transform.position = player.transform.position + offset;
    }
}