UGUI之Text对齐至格子

来源：互联网发布：清华大学研究生知乎编辑：程序博客网时间：2024/06/05 06:38

UGUI之Text对齐至格子

背景：前几天有个需求：玩家输入的6位房间ID号，要对齐至背景格子图中，故将前面写的调整Text字间距勉强给boss用了

大致效果如图：
这里写图片描述

具体脚本代码如下:

using UnityEngine;using System.Collections;using UnityEngine.UI;using System;using System.Collections.Generic;[AddComponentMenu("UI/Effects/TextAlignToGrid")]public class TextAlignToGrid : BaseMeshEffect{    public RectTransform _gridBg;          //格子背景    public int _gridNum;                  //我的格子数为6    private Vector2 _gridSize;          //格子大小    private Vector3[] _targetFocusPos;  //目标中心点，也就是对应的格子中心点    public override void ModifyMesh(VertexHelper vh)    {        if (!IsActive() || vh.currentVertCount == 0)        {            return;        }        if (_gridBg == null)        {            Debug.Log("Missing Grid Background");            return;        }        Text text = GetComponent<Text>();        if (text == null)        {            Debug.Log("Missing Text component");            return;        }        _gridSize = _gridBg.sizeDelta;        int textLen = text.text.Length;        Vector3[] textFocusPos = new Vector3[textLen];        List<UIVertex> vertexs = new List<UIVertex>();        _targetFocusPos = new Vector3[textLen];        vh.GetUIVertexStream(vertexs);        //计算text各文字中心点坐标        for (int i = 0; i < textLen; i++)        {            float x = (vertexs[i * 6].position.x + vertexs[i * 6 + 1].position.x) / 2;            float y = (vertexs[i * 6 + 1].position.y + vertexs[i * 6 + 2].position.y) / 2;            textFocusPos[i] = new Vector3(x, y, 0);        }        //根据格子大小_gridSize计算目标中心点        float xOffset = _gridSize.x / _gridNum;        for (int i = 0; i < textLen; i++)        {            float x = (float)(-_gridSize.x / 2 + xOffset * (i + 0.5));            _targetFocusPos[i] = new Vector3(x, 0, 0);        }        //计算text各顶点新坐标        UIVertex v = new UIVertex();        for (int i = 0; i < vh.currentVertCount; i++)        {            vh.PopulateUIVertex(ref v, i);            float x = v.position.x + _targetFocusPos[i / 4].x - textFocusPos[i / 4].x;            float y = v.position.y + _targetFocusPos[i / 4].y - textFocusPos[i / 4].y;            v.position = new Vector3(x, y, 0);            vh.SetUIVertex(v, i);        }    }}

1 0