[Unity3D]用C#在unity里面写一个简单的红绿灯

发布时间：2024-06-25 10:01

[Unity3D]用C#在unity里面写一个简单的红绿灯

00.成果展示
01.创建可变颜色的小球
02.编写代码
- R1.cs
- R2.cs
- G1.cs
- G2.cs
- Y1.cs
- Y2.cs
03.自己遇到的问题
04.借鉴文章
05.代码和预制体放上来了
- 在此处下载：
- 使用方法：

00.成果展示

01.创建可变颜色的小球

创建一个项目，命名为traffic。新建12个sphere（或者建一个之后一直复制）命名为red，yellow，green，按照如下的结构排放。TrafficForward等都是空物体，即Create Empty。之后将仿真的红绿灯模型（即models和up、down）加到小球上面。

02.编写代码

分为6个代码，为红1，红2，绿1，绿2，黄1，黄2
TrafficForward和TrafficBack使用1，另外两个用2.

R1.cs

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

public class R1 : MonoBehaviour
{
    void Start()
    {
        Material material = new Material(Shader.Find("Transparent/Diffuse"));
        material.color = Color.black;
        GetComponent<Renderer>().material = material;//开始时将灯设置为黑色
        InvokeRepeating("RedTurn", 63f, 123f);//
        InvokeRepeating("TurnBlack", 123f, 123f);//
    }

    void Update()
    {

    }
    void RedTurn()
    {
        Material material1 = new Material(Shader.Find("Transparent/Diffuse"));
        material1.color = Color.red;
        GetComponent<Renderer>().material = material1;
    }
    void TurnBlack()
    {
        Material material2 = new Material(Shader.Find("Transparent/Diffuse"));
        material2.color = Color.black;
        GetComponent<Renderer>().material = material2;
    }
}

R2.cs

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

public class R2 : MonoBehaviour
{
    void Start()
    {
        Material material = new Material(Shader.Find("Transparent/Diffuse"));
        material.color = Color.black;
        GetComponent<Renderer>().material = material;//开始时将灯设置为黑色
        InvokeRepeating("RedTurn", 0f, 123f);//
        InvokeRepeating("TurnBlack", 60f, 123f);//
    }

    void Update()
    {

    }
    void RedTurn()
    {
        Material material1 = new Material(Shader.Find("Transparent/Diffuse"));
        material1.color = Color.red;
        GetComponent<Renderer>().material = material1;
    }
    void TurnBlack()
    {
        Material material2 = new Material(Shader.Find("Transparent/Diffuse"));
        material2.color = Color.black;
        GetComponent<Renderer>().material = material2;
    }

}

G1.cs

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

public class G1 : MonoBehaviour
{
    void Start()
    {
        Material material = new Material(Shader.Find("Transparent/Diffuse"));
        material.color = Color.black;
        GetComponent<Renderer>().material = material;//开始时将灯设置为黑色
        InvokeRepeating("GreenTurn", 0f, 123f);//0秒后调用GreenTurn() 函数
        InvokeRepeating("TurnBlack", 60f, 123f);//绿灯灭
    }

    void Update()
    {

    }
    void GreenTurn()
    {
        Material material1 = new Material(Shader.Find("Transparent/Diffuse"));
        material1.color = Color.green;
        GetComponent<Renderer>().material = material1;
    }
    void TurnBlack()
    {
        Material material2 = new Material(Shader.Find("Transparent/Diffuse"));
        material2.color = Color.black;
        GetComponent<Renderer>().material = material2;
    }
}

G2.cs

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

public class G2 : MonoBehaviour
{
    void Start()
    {
        Material material = new Material(Shader.Find("Transparent/Diffuse"));
        material.color = Color.black;
        GetComponent<Renderer>().material = material;//开始时将灯设置为黑色
        InvokeRepeating("GreenTurn", 60f, 123f);//0秒后调用GreenTurn() 函数
        InvokeRepeating("TurnBlack", 120f, 123f);//绿灯灭
    }
    void Update()
    {

    }
    void GreenTurn()
    {
        Material material1 = new Material(Shader.Find("Transparent/Diffuse"));
        material1.color = Color.green;
        GetComponent<Renderer>().material = material1;
    }
    void TurnBlack()
    {
        Material material2 = new Material(Shader.Find("Transparent/Diffuse"));
        material2.color = Color.black;
        GetComponent<Renderer>().material = material2;
    }
}

Y1.cs

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

public class Y1 : MonoBehaviour
{
    void Start()
    {
        Material material = new Material(Shader.Find("Transparent/Diffuse"));
        material.color = Color.black;
        GetComponent<Renderer>().material = material;//开始时将灯设置为黑色
        InvokeRepeating("YellowTurn", 60f, 123f);//
        InvokeRepeating("TurnBlack", 63f, 123f);//
    }

    void Update()
    {

    }
    void YellowTurn()
    {
        Material material1 = new Material(Shader.Find("Transparent/Diffuse"));
        material1.color = Color.yellow;
        GetComponent<Renderer>().material = material1;
    }
    void TurnBlack()
    {
        Material material2 = new Material(Shader.Find("Transparent/Diffuse"));
        material2.color = Color.black;
        GetComponent<Renderer>().material = material2;
    }
}

Y2.cs

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

public class Y2 : MonoBehaviour
{
    void Start()
    {
        Material material = new Material(Shader.Find("Transparent/Diffuse"));
        material.color = Color.black;
        GetComponent<Renderer>().material = material;//开始时将灯设置为黑色
        InvokeRepeating("YellowTurn", 120f, 123f);//
        InvokeRepeating("TurnBlack", 123f, 123f);//
    }

    void Update()
    {

    }
    void YellowTurn()
    {
        Material material1 = new Material(Shader.Find("Transparent/Diffuse"));
        material1.color = Color.yellow;
        GetComponent<Renderer>().material = material1;
    }
    void TurnBlack()
    {
        Material material2 = new Material(Shader.Find("Transparent/Diffuse"));
        material2.color = Color.black;
        GetComponent<Renderer>().material = material2;
    }
}

03.自己遇到的问题

放置的时间太久了，我已经忘了当时想要写的问题了。就这吧。

04.借鉴文章

借鉴的https://blog.csdn.net/W_Chelsea/article/details/103180322
以及https://blog.csdn.net/MASILEJFOAISEGJIAE/article/details/84076048，
一开始以后一个为主搞得，总是有问题，转成第一个。