键盘控制角色移动脚本和摄像机跟随脚本

void Update () {
        float h = Input.GetAxis("Horizontal");
        float v = Input.GetAxis("Vertical");
        Vector3 vel = rigidbody.velocity;
        if (Mathf.Abs(h) > 0.05f || Mathf.Abs(v) > 0.05f) {
            rigidbody.velocity = new Vector3(-h * velocity, vel.y, -v * velocity);
            transform.rotation = Quaternion.LookRotation(new Vector3(-h, 0, -v));
        } else {
            if (agent.enabled == false) {
                rigidbody.velocity = Vector3.zero;
            }
        }
        if (agent.enabled) {
            transform.rotation = Quaternion.LookRotation ( agent.velocity  );
        }
    }

using UnityEngine;
using System.Collections;

public class FollowTarget : MonoBehaviour {

    public Vector3 offset;
    private Transform player;

    // Use this for initialization
    void Start () {
        player = GameObject.FindGameObjectWithTag("Player").transform;
    }
    
    // Update is called once per frame
    void FixedUpdate () {
        Vector3 targetPosition = player.position + offset;
        transform.position = Vector3.Lerp(transform.position,targetPosition,Time.deltaTime*8.0f);
    }
}