66 lines
2.2 KiB
C#
66 lines
2.2 KiB
C#
using System;
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using System.Collections.Generic;
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using UnityEngine;
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using Random = UnityEngine.Random;
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namespace Test
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{
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[RequireComponent(typeof(MeshFilter)), RequireComponent(typeof(MeshRenderer))]
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public class TestMesh : MonoBehaviour
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{
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Mesh mesh;
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private void Awake()
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{
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mesh = new Mesh();
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// 定义顶点数组
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List<Vector3> vertices = new List<Vector3>();
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// 定义三角形数组，每个三角形由三个顶点的索引组成
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List<int> triangles = new List<int>();
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List<Color> colors = new List<Color>();
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for (int z = 0; z < 3; z++)
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{
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for (int x = 0; x < 3; x++)
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{
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var center = new Vector3(
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// (x + z * 0.5f - z / 2)： x加上z的一半，再减去z的一半的整数值
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(x + z * 0.5f - z / 2) * (HexMetrics.innerRadius * 2f),
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0,
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HexMetrics.offset * z);
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Color color = new Color(Random.Range(0,1f), Random.Range(0,1f), Random.Range(0,1f), 1);
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for (int i = 0; i < 6; i++)
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{
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var verticesCount = vertices.Count;
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vertices.Add(center);
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vertices.Add(center + HexMetrics.corners[i]);
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vertices.Add(center + HexMetrics.corners[i + 1]);
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triangles.Add(verticesCount);
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triangles.Add(verticesCount + 1);
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triangles.Add(verticesCount + 2);
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colors.Add(color);
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colors.Add(color);
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colors.Add(color);
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}
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}
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}
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mesh.vertices = vertices.ToArray();
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mesh.colors = colors.ToArray();
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mesh.triangles = triangles.ToArray();
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// 计算法线
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mesh.RecalculateNormals();
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GetComponent<MeshFilter>().mesh = mesh;
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// 为 MeshRenderer 指定材质
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// GetComponent<MeshRenderer>().material = new Material(Shader.Find("Standard"));
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}
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}
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} |