image.png
using UnityEngine;
using System.Collections;
using UnityEngine.UI;
using System;
using System.Collections.Generic;
[AddComponentMenu("UI/Effects/TextSpacing")]
public class TextSpacing : BaseMeshEffect
{
public float _textSpacing = 1f;
public override void ModifyMesh(VertexHelper vh)
{
if (!IsActive() || vh.currentVertCount == 0)
{
return;
}
List<UIVertex> vertexs = new List<UIVertex>();
vh.GetUIVertexStream(vertexs);
int indexCount = vh.currentIndexCount;
UIVertex vt;
for (int i = 6; i < indexCount; i++)
{
//第一个字不用改变位置
vt = vertexs[i];
vt.position += new Vector3(_textSpacing * (i / 6), 0, 0);
vertexs[i] = vt;
//以下注意点与索引的对应关系
if (i % 6 <= 2)
{
vh.SetUIVertex(vt, (i / 6) * 4 + i % 6);
}
if (i % 6 == 4)
{
vh.SetUIVertex(vt, (i / 6) * 4 + i % 6 - 1);
}
}
}
}
