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[]> VerticesList;

    #endregion

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

        if (Draw)
        {
            if (Application.isPlaying)
            {
                sprite = Bundle.Atlas.LoadAsset<Sprite>("Atlas");
            }
        }

        VerticesList = new List<UIVertex[]>();

        for (int i = 0; i < vertexList.Count; i += 4)
        {
            VerticesList.Add
            (
                new UIVertex[]
                {
                    vertexList[i + 0],
                    vertexList[i + 1],
                    vertexList[i + 2],
                    vertexList[i + 3],
                }
            );
        }

        OnPopulateMesh(empty);

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

    protected override void OnPopulateMesh(VertexHelper toFill)
    {
        toFill.Clear();
        
        if (Draw)
        {
            if (VerticesList.Valid())
            {
                for (int i = 0; i < VerticesList.Count; i++)
                {
                    toFill.AddUIVertexQuad(VerticesList[i]);
                }
            }
        }
    }
}