garden_client/Assets/Script/Tool/UI/ImagePlus.cs

using UnityEngine;
using UnityEngine.UI;

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

public class ImagePlus : Image
{
    #region 变量

    public Text Text
    {
        get
        {
            if (_Text == null)
            {
                _Text = GetComponentInParent<Text>();
            }

            return _Text;
        }
        set { _Text = value; }
    }

    private Text _Text;

    public bool Draw;

    public List<UIVertex> VertexList;

    #endregion

    public void UpdateStatus(bool draw, VertexHelper vase, List<UIVertex> vertexList)
    {
        Draw = draw;

        VertexList = vertexList;

        OnPopulateMesh(vase);

        StartCoroutine
        (
            Auxiliary.IDelayCall
            (
                () =>
                {
                    SetVerticesDirty();
                },
                2
            )
        );
    }

    protected override void OnPopulateMesh(VertexHelper toFill)
    {
        toFill.Clear();
        
        if (VertexList.Valid() && Draw)
        {
            toFill.AddVert(VertexList[0]);
            toFill.AddVert(VertexList[1]);
            toFill.AddVert(VertexList[2]);
            toFill.AddVert(VertexList[3]);

            toFill.AddTriangle(0, 1, 2);
            toFill.AddTriangle(0, 2, 3);
        }
    }
}