ARCar项目第一节课应完成代码

各位对项目感兴趣的看官请移步，这里没有各位需要的代码，本内容仅做阶段记录用。

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
/*
 * #AuthorName#
 * #UpdateTime#
 */
 //要求组件
 [RequireComponent(typeof(MeshFilter),typeof(MeshRenderer))]
 [ExecuteInEditMode]
public class RectMesh : MonoBehaviour
{
    //定义平面的宽和长
    public float m_Width;
    public float m_Length;
    //MeshFilter
    private MeshFilter meshFilter;
    //定义mesh网格的纹理坐标数组
    private Vector2[] uvs;
    //定义mesh网格的三角形顶点索引数组
    private int[] triangles;
    //定义mesh网格的顶点数据数组
    private Vector3[] vertices;
    //唤醒
    private void Awake()
    {
        //创建对象其他相关属性
        Init();
    }
    void Init(){
        //需要对象的MeshFilter
        meshFilter = GetComponent<MeshFilter>();
        //需要对象空Mesh
        meshFilter.sharedMesh = new Mesh();
    }

    //创建Mesh
    void InitMesh()
    {
        uvs = new Vector2[4];
        uvs[0].x = 0;
        uvs[0].y = 0;
        uvs[1].x = 1;
        uvs[1].y = 0;
        uvs[2].x = 0;
        uvs[2].y = 1;
        uvs[3].x = 1;
        uvs[3].y = 1;

        triangles = new int[] { 0, 2, 3, 0, 3, 1 };

        vertices = new Vector3[4];
        Vector3 localPos = new Vector3(0, 0, 0);
        vertices[0].x = localPos.x - m_Width * 0.5f;
        vertices[0].y = localPos.y;
        vertices[0].z = localPos.z - m_Length * 0.5f;
        vertices[1].x = localPos.x + m_Width * 0.5f;
        vertices[1].y = localPos.y;
        vertices[1].z = localPos.z - m_Length * 0.5f;
        vertices[2].x = localPos.x - m_Width * 0.5f;
        vertices[2].y = localPos.y;
        vertices[2].z = localPos.z + m_Length * 0.5f;
        vertices[3].x = localPos.x + m_Width * 0.5f;
        vertices[3].y = localPos.y;
        vertices[3].z = localPos.z + m_Length * 0.5f;

        meshFilter.sharedMesh.vertices = vertices;
        meshFilter.sharedMesh.triangles = triangles;
        meshFilter.sharedMesh.uv = uvs;
    }

    //当面板内容改动时，就会自动调用这个方法
    private void OnValidate()
    {
        InitMesh();
    }

}