UGUI实现随意调整Text中的字体间距

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;

public class TextSpacingTest : BaseMeshEffect
{
 public float spacing = 0;
 public override void ModifyMesh(VertexHelper vh)
 {
  List vertexs = new List();
  vh.GetUIVertexStream(vertexs);
  int vertexIndexCount = vertexs.Count;
  for (int i = 6; i 

using UnityEngine;
using System.Collections;
using UnityEngine.UI;
using System.Collections.Generic;


internal class Line
{
 //每行开始顶点索引
 private int startVertexIndex;
 public int StartVertexIndex
 {
  get
  {
   return startVertexIndex;
  }
 }

 //每行结束顶点索引
 private int endVertexIndex;
 public int EndVertexIndex
 {
  get
  {
   return endVertexIndex;
  }
 }

 //每行顶点总量
 private int countVertexIndex;
 public int CountVertexIndex
 {
  get
  {
   return countVertexIndex;
  }
 }

 public Line(int startVertexIndex,int countVertexIndex)
 {
  this.startVertexIndex = startVertexIndex;
  this.countVertexIndex = countVertexIndex;
  this.endVertexIndex = this.startVertexIndex + countVertexIndex - 1;

 }
}

/// 

/// 这是设置字体移动的核心类
/// 执行多重行移动的核心算法是：将多重行分开依次进行处理，每一行的处理都是前面对单行处理的子操作
/// 但是由vh是记录一个文本中所有的字的顶点，所以说需要分清楚每行开始，每行结束，以及行的字个数，
/// 如此需要创建一个行的数据结构，以保存这些信息
/// 
public class TextSpacingMulTest : BaseMeshEffect
{
 public float spacing = 0;
 public override void ModifyMesh(VertexHelper vh)
 {
  Text text = GetComponent();
  string[] ls = text.text.Split('\n');
  int length = ls.Length;
  bool isNewLine = false;
  Line[] line;
  if (string.IsNullOrEmpty(ls[ls.Length - 1]) == true)
  {
   line = new Line[length - 1];
   isNewLine = true;
  }
  else
  {
   line = new Line[length];
   
  }
  //Debug.Log("ls长度" + ls.Length);
  for (int i = 0; i =1)//解决单行时有换行符的情况，以及多行时i为0的情况
   {
    line[i] = new Line(0, (ls[i].Length+1) * 6);
   }
   else
   {
    if (i  vertexs = new List();
  vh.GetUIVertexStream(vertexs);
  int countVertexIndex = vertexs.Count;
  //Debug.Log("顶点总量" + vertexs.Count);
  for (int i = 0; i