[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
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。
05.代码和预制体放上来了
在此处下载：
https://download.csdn.net/download/weixin_43784914/85854003
使用方法：
将其拉到Project下的Assets目录下进行导入。
导入。
将导入的traffic预制体拖入场景当中。
运行可看。每隔60秒绿灯灭，黄灯亮3秒，再红灯亮，亮60秒。
也可以在导入的资源包中更换组合红绿灯的样式。如下图：
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