Unity 宠物跟随效果

下面的案例是实现宠物跟随的效果 
下面的代码是角色移动的脚本

using UnityEngine;

using System.Collections;

public class PlayerMove : MonoBehaviour

{

// Update is called once per frame

void Update () {

//按W键 前进

if (Input.GetKey(KeyCode.W))

{

transform.position += transform.forward * 1 * Time.deltaTime;

}

//按S键 后退

if (Input.GetKey(KeyCode.S))

{

transform.position += transform.forward * -1 * Time.deltaTime;

}

//按A键 向左旋转

if (Input.GetKey(KeyCode.A))

{

transform.Rotate(transform.up, -30 * Time.deltaTime);

}

//按D键 向右旋转

if (Input.GetKey(KeyCode.D))

{

transform.Rotate(transform.up, -30 * Time.deltaTime);

}

}

}

以下是宠物绑定的脚本

using UnityEngine;

using System.Collections;

public class Follow : MonoBehaviour {

public Transform target;

public Vector3 offset;

public float backDistance = 2;

public float topDistance = 2;

void LateUpdate()

{

offset = -target.forward * backDistance + target.up * topDistance;

transform.position = Vector3.Lerp(transform.position, target.position + offset,Time.deltaTime);

transform.rotation = target.rotation;

}

}