Unity3D实现旋钮控制灯光效果

public void RotateAround(Vector3 point, Vector3 axis, float angle);
    //通过给定一个世界坐标、轴向以及一个角度，使物体以该角度旋转绕世界坐标点的轴向的变换
  
  public T GetComponent<T>();
    //获取对象的组件
 
  public bool enabled { get; set; }
    //设置激活状态 

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
 
public class RotateControl : MonoBehaviour {
 
  public GameObject RedLight;//红灯
  public GameObject GreenLight;//绿灯
  public GameObject Center;//旋转中心，若为自身则指定自身
 
  private bool isOn = false;//正在开启
  private bool isOff = false;//正在关闭
  [Range(0,180)]
  public float onLine = 80;//旋钮最大角度
  [Range(0,180)]
  private float offLine = 0;//旋钮最小角度
  [Range(0,3)]
  public float speed = 1;//旋转速度
  [Range(0, 20)]
  public float LightingRange = 10;//亮灯角度与旋钮最大角度的角度差
 
  // Use this for initialization
  void Start () {
    isOn = false;
    isOff = false;
    offLine = Center.transform.rotation.z;//设定起始位置即为最小角度
    RedLight.GetComponent<Renderer>().enabled = false;//关闭红灯渲染
    GreenLight.GetComponent<Renderer>().enabled = false;//关闭绿灯渲染
  }
 
 // Update is called once per frame
 void Update () {
    if (Input.GetKeyDown(KeyCode.R))//关闭
    {
      isOn = false;
      isOff = true;
    }
    if (Input.GetKeyDown(KeyCode.G))//开启
    {
      isOn = true;
      isOff = false;
    }
 
    if (isOn == true)
    {
      if (this.transform.eulerAngles.z < onLine)//旋钮旋转至最大角度
      {
        this.transform.RotateAround(this.transform.position, this.transform.forward, speed);
      }
      else
      {
        isOn = false;
      }
    }
    if (isOff == true)
    {
      if (this.transform.eulerAngles.z > offLine + 1)//旋转至最小角度+1°的角度，当物体旋转到0时继续旋转则变为360度
      {
        this.transform.RotateAround(this.transform.position, this.transform.forward, -speed);
      }
      else
      {
        isOff = false;
      }
    }
 
    //检测旋转角度控制灯光
    if (this.transform.eulerAngles.z >= onLine - LightingRange)//当旋钮旋转角度大于阈值则渲染绿灯，关闭红灯
    {
      RedLight.GetComponent<Renderer>().enabled = false;
      GreenLight.GetComponent<Renderer>().enabled = true;
    }
    else
    {
      RedLight.GetComponent<Renderer>().enabled = true;
      GreenLight.GetComponent<Renderer>().enabled = false;
    }
  }
}