using UnityEngine;using System.Collections;using UnityEngine.EventSystems;public class JoyController : MonoBehaviour,IDragHandler,IEndDragHandler {    //摇杆圆盘半径    public float radius = 75f;    //摇杆原始位置    private Vector3 origin;    //玩家的角色控制器    private CharacterController player;    //玩家移动速度    public float speed = 10;    //声明一个方向向量    Vector3 dir;    void Start()    {        //获取当前位置        origin = transform.position;        //找到主角玩家        player = GameObject.FindWithTag ("Player").            GetComponent
     
       ();    }    void Update()    {        //玩家移动        player.SimpleMove (new Vector3(dir.x,0,dir.y) * speed * Time.deltaTime);    }    /// 
      
    /// 摇杆拖拽中    /// 
    /// 
      Event data.    public void OnDrag (PointerEventData eventData)    {        //计算起点位置与当前鼠标位置的距离        float distance = Vector3.Distance (origin, Input.mousePosition);        //求方向向量        dir = Input.mousePosition - origin;        //如果拖拽在圆盘范围内        if (distance <= radius) {            //摇杆随鼠标移动而移动            transform.position = Input.mousePosition;        } else {            //实际向量            Vector3 real = dir.normalized * radius;            //最终摇杆的位置            transform.position = real + origin;        }    }    /// 
      
    /// 结束拖拽    /// 
    /// 
      Event data.    public void OnEndDrag (PointerEventData eventData)    {        dir = Vector3.zero;        //回到初始位置        transform.position = origin;    }}
     

要注意的几个位置，添加相应组件。1,脚本挂载在遥感中心点Controller上.2,小摄像头(设置正交)挂为Player子物体跟随玩家移动3,遮罩设置