Unity 2D摄像机跟随角色移动

一，摄像机只跟随角色移动

二，摄像机移动时，是平缓移动的

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class CmeraFollow : MonoBehaviour {

    public Transform m_playerTransform;

    //设定一个角色能看到的最远值
    public float Ahead;

    //设置一个摄像机要移动到的点
    public Vector3 targetPos;

    //设置一个缓动速度插值
    public float smooth;


    void Start () {

        //获取当前角色的transform
        //m_playerTransform = GameObject.Find("player").GetComponent<Transform>();

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


        //this.transform.position = new Vector3(m_playerTransform.position.x, gameObject.transform.position.y, gameObject.transform.position.z);



        targetPos = new Vector3(m_playerTransform.position.x, gameObject.transform.position.y, gameObject.transform.position.z);

        if (m_playerTransform.position.x > 0f)
        {
            targetPos = new Vector3(m_playerTransform.position.x + Ahead, gameObject.transform.position.y, gameObject.transform.position.z);
        }
        else
        {
            targetPos = new Vector3(m_playerTransform.position.x - Ahead, gameObject.transform.position.y, gameObject.transform.position.z);
        }

        transform.position = Vector3.Lerp(transform.position, targetPos, smooth * Time.deltaTime);

    }
}