在 Unity 中引用灯光的问题

Question

我正在尝试在 Unity 中制作一款驾驶游戏，作为其中的一部分，我正在尝试让交通灯闪烁。

这是我的脚本，我附在了红绿灯上。红绿灯的层级为：

TrafficLight_A (the base traffic light)

RedLight (the light I'm trying to make flash)

    using UnityEngine;
 using System.Collections;
 
 public class Blink_Light : MonoBehaviour
 {

     public float totalSeconds = 2;     // The total of seconds the flash wil last
     public float maxIntensity = 8;     // The maximum intensity the flash will reach
     public Light myLight = Light RedLight;        // The light (error)
 
     public IEnumerator flashNow ()
     {
         float waitTime = totalSeconds / 2;                        
         // Get half of the seconds (One half to get brighter and one to get darker)
         while (myLight.intensity < maxIntensity) {
             myLight.intensity += Time.deltaTime / waitTime;        // Increase intensity
             yield return null;
         }
         while (myLight.intensity > 0) {
             myLight.intensity -= Time.deltaTime / waitTime;        //Decrease intensity
            yield return null;
         }
         yield return null;
     }
 }

但是，我得到一个错误：

Assets/Blink_Script/Blink_Light.cs: error CS1525: Unexpected symbol "RedLight"

我该怎么做才能解决这个问题？（我对 C# 有点陌生）

Answer 1

根据您的层次结构，您正在尝试从名为 "RedLight" 的游戏对象访问 Light 组件，该游戏对象是 "TrafficLight_A" 游戏对象的子对象。为此，请将 "TrafficLight_A/RedLight" 传递给 GameObject.Find 函数，该函数会找到 RedLight 游戏对象，然后 GetComponent<Light>() 检索 Light 组件。您可以在 Awake 或 Start 函数中执行此操作。

每当您需要查找子对象时，就像在文件路径中一样使用“/”。

public float totalSeconds = 2;     // The total of seconds the flash wil last
public float maxIntensity = 8;     // The maximum intensity the flash will reach
public Light myLight;

void Awake()
{
    //Find the RedLight
    GameObject redlight = GameObject.Find("TrafficLight_A/RedLight");
    //Get the Light component attached to it
    myLight = redlight.GetComponent<Light>();
}

public IEnumerator flashNow()
{
    float waitTime = totalSeconds / 2;
    // Get half of the seconds (One half to get brighter and one to get darker)
    while (myLight.intensity < maxIntensity)
    {
        myLight.intensity += Time.deltaTime / waitTime;        // Increase intensity
        yield return null;
    }
    while (myLight.intensity > 0)
    {
        myLight.intensity -= Time.deltaTime / waitTime;        //Decrease intensity
        yield return null;
    }
    yield return null;
}

在 Unity 中引用灯光的问题

Issues referencing a light in Unity

c#

light

unity3d