如何在unity c#中CreatePrimitive自定义对象？

using UnityEngine;

public class CustomObjectCreator : MonoBehaviour
{
    void Start()
    {
        // 创建空物体
        GameObject customObject = new GameObject("CustomObject");

        // 添加MeshFilter组件
        MeshFilter meshFilter = customObject.AddComponent<MeshFilter>();

        // 创建圆锥体的顶点、三角形索引和UV坐标
        Mesh customMesh = new Mesh();
        Vector3[] vertices = new Vector3[]
        {
            new Vector3(0, 0, 0),
            new Vector3(0, 1, 0),
            new Vector3(1, 0, 0),
            new Vector3(0.5f, 0, 0.5f)
        };
        int[] triangles = new int[]
        {
            0, 1, 2,
            0, 3, 1,
            3, 2, 1,
            3, 0, 2
        };
        Vector2[] uv = new Vector2[]
        {
            new Vector2(0, 0),
            new Vector2(0, 1),
            new Vector2(1, 0),
            new Vector2(0.5f, 0.5f)
        };

        // 设置顶点、三角形索引和UV坐标
        customMesh.vertices = vertices;
        customMesh.triangles = triangles;
        customMesh.uv = uv;

        // 赋值给MeshFilter的mesh属性
        meshFilter.mesh = customMesh;

        // 添加MeshRenderer组件
        MeshRenderer meshRenderer = customObject.AddComponent<MeshRenderer>();

        // 设置材质和纹理
        Material material = new Material(Shader.Find("Standard"));
        meshRenderer.material = material;
    }
}