Unity 鼠标跟随点击位置

       using UnityEngine;
       using UnityEngine.AI;
       public class MeshlinksDemo : MonoBehaviour {
        NavMeshAgent mr;   //声明变量
      	// Use this for initialization
      	void Start () {
       //获取到自身的NavMeshAgent组件
        mr = GetComponent<NavMeshAgent>();
       	}
      	// Update is called once per frame
      	void Update () {
       if (Input.GetMouseButtonDown(0))
        {
       //获取鼠标点击的点，
        Ray ray = Camera.main.ScreenPointToRay(Input.mousePosition);
        RaycastHit rayhit;  //声明RacastHit类型
       if (Physics.Raycast(ray, out rayhit))
        {
       if (rayhit.transform.name == "Plane") //判断是不是点击地面
        {
       //鼠标点击的点赋值给目标点
        mr.SetDestination(rayhit.point);
        }
        }
        }
       	}
       }
   
  

在正常摄像机下，Cube跟随鼠标移动代码：

       private void Update()
       {
       if (Input.GetMouseButton(0))
        {
        Vector3 target = Input.mousePosition;
        target.z = Mathf.Abs(Camera.main.transform.position.z);
        transform.localPosition = Camera.main.ScreenToWorldPoint(target);
        }
       }
   
  

效果如下：