ugui生成雷达图

网上找了下没啥好的代码，自己结合资料优化了下，支持创建任意边数的雷达图
原理是采用CanvasRender创建Mesh

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

[RequireComponent(typeof(CanvasRenderer))]
public class UGUI_Radar : MonoBehaviour
{
[SerializeField] private Material mat;//材质球，自行创建，shader选择 UI/Default
[SerializeField] private Texture _tex;//贴图，可选
private CanvasRenderer _render;
public List dataList = new List(10);//每个点的数据
[SerializeField] private float radarSize = 10f;//雷达图的长度

// Start is called before the first frame update
void Start()
{
_render = GetComponent();
UpdateRadarVisualData();
}

// Update is called once per frame
void Update()
{

}

///

/// 生成雷达图
///

public void UpdateRadarVisualData()
{
int _length = dataList.Count;
if (_length < 3)
{
Debug.LogError("边数不能小于3");
return;
}
Mesh mesh = new Mesh();
Vector3[] vertices = new Vector3[_length + 1];
Vector2[] uv = new Vector2[_length + 1];
int[] triangles = new int[3 * _length];//一个三角形，三个点，5个图形，乘以5
float angleIncrement = 360f / _length;//度数

vertices[0] = Vector3.zero;
for (int i = 1; i <= _length; i++)
{
vertices[i] = Quaternion.Euler(0, 0, -angleIncrement * (i - 1)) * Vector3.up * radarSize * dataList[i-1];
}

uv[0] = Vector2.zero;
for (int i = 1; i <= _length; i++)
{
uv[i] = Vector2.one;
}

/*
triangles[0] = 0;
triangles[1] = 1;
triangles[2] = 2;

triangles[3] = 0;
triangles[4] = 2;
triangles[5] = 3;

triangles[6] = 0;
triangles[7] = 3;
triangles[8] = 4;

triangles[9] = 0;
triangles[10] = 4;
triangles[11] = 5;

triangles[12] = 0;
triangles[13] = 5;
triangles[14] = 1;
*/

//注释规律总结
for (int i = 0; i < _length * 3; i++)
{
if (i%3 == 0)
{
triangles[i] = 0;
}
else
{
if ((i-1)%3 == 0)
{
triangles[i] = (i - 1) / 3 + 1;
}
else
{
triangles[i] = (i - 2) / 3 + 2;
}
}
//最终值为1
if (i == _length * 3 - 1)
{
triangles[i] = 1;
}
}

mesh.vertices = vertices;
mesh.uv = uv;
mesh.triangles = triangles;

_render.SetMesh(mesh);
_render.SetMaterial(mat, _tex);
}

}