Unity 属性雷达图

1using System.Collections.Generic;
2using UnityEngine;
3
4[RequireComponent(typeof(MeshFilter),typeof(MeshRenderer))]
5public class Radar : MonoBehaviour
6{
7    [Tooltip("属性边长")]
8    public float radius = 45;
9    [Range(0, 1), Tooltip("当前属性百分比")]
10    public List<float> m_attributes;
11
12    private float m_cell_angle;
13    private List<Vector3> m_vertices = new List<Vector3>();
14    private int[] m_triangles;
15
16    private MeshRenderer m_render;
17    private MeshFilter m_filter;
18    private Mesh m_mesh;
19
20    private void Awake()
21    {
22        m_render = GetComponent<MeshRenderer>();
23        m_filter = GetComponent<MeshFilter>();
24        m_mesh = new Mesh();
25        m_filter.mesh = m_mesh;
26        if (m_render.material == null)
27        {
28            Debug.LogWarning("请添加Material");
29        }
30    }
31
32    void Start()
33    {
34        if (m_attributes.Count != 0)
35        {
36            m_cell_angle = 360 / m_attributes.Count;
37            InitMeshData();
38        }
39    }
40
41    private void Update()
42    {
43        if (Input.GetKeyDown(KeyCode.Space))
44        {
45            Refresh();
46        }
47    }
48
49    void InitMeshData()
50    {
51        #region 设置顶点
52        m_vertices.Clear();
53        m_vertices.Add(new Vector3(0, 0, 1));
54        m_vertices.Add(new Vector3(radius, 0, 1));
55
56        for (int i = 0; i < m_attributes.Count; i++)
57        {
58            float angle = Mathf.Deg2Rad * m_cell_angle * (i + 1);
59            Vector3 point = new Vector3(radius * Mathf.Cos(angle), radius * Mathf.Sin(angle), 1);
60            m_vertices.Add(point);
61        }
62        #endregion
63
64        #region 设置三角形
65        m_triangles = new int[m_attributes.Count * 3];
66
67        int index = 0;
68        int value = 0;
69        for (int i = 0; i < m_triangles.Length; i++)
70        {
71            if (i % 3 == 0)
72            {
73                m_triangles[i] = 0;
74                value = index;
75                index++;
76            }
77            else
78            {
79                value++;
80                if (value == m_attributes.Count + 1)
81                    value = 1;
82                m_triangles[i] = value;
83            }
84        }
85        #endregion
86    }
87
88    void Refresh()
89    {
90        Vector3[] vertices = m_vertices.ToArray();
91
92        for (int i = 2; i < m_vertices.Count; i++)
93        {
94            vertices[i] = m_vertices[i] * m_attributes[i - 2];
95        }
96
97        m_mesh.vertices = vertices;
98        m_mesh.triangles = m_triangles;
99        m_mesh.RecalculateNormals();
100    }
101}

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转载：https://blog.csdn.net/zjw1349547081/article/details/53667690