Unity Text竖直显示文字

最新推荐文章于 2025-06-03 23:35:34 发布

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最新推荐文章于 2025-06-03 23:35:34 发布

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文章标签： unity

本文链接：https://blog.youkuaiyun.com/XBWXBWXBWXBW/article/details/75635212

这篇博客介绍如何在Unity中创建一个VerticalText脚本，该脚本允许文本以竖直方向显示，支持中文和英文两种类型。通过使用UnityEngine.UI和自定义LetterType枚举，实现文本排列方式的调整。

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

public class VerticalText : Text
{
public enum LetterType
{
chinese,
english,
}

protected override void OnPopulateMesh(VertexHelper toFill)
{
    if (null == toFill)
        return;
    base.OnPopulateMesh(toFill);
    //获取所有的UIVertex,绘制一个字符对应6个UIVertex，绘制顺序为012 230 ,0在左上角
    List<UIVertex> listUIVertex = new List<UIVertex>();
    toFill.GetUIVertexStream(listUIVertex);

    var vertArray = listUIVertex.ToArray();
    for (int i = 0; i < vertArray.Length; i += 6)
    {
        float halfOfheight = Mathf.Abs(vertArray[i + 1].position.y - vertArray[i  +2 ].position.y) / 2.0f;
        float halfOfwidth  = Mathf.Abs(vertArray[i +1].position.x - vertArray[i ].position.x) / 2.0f;
        Vector3 centerPos = (vertArray [i].position + vertArray [i + 2].position) / 2.0f;

        float angleZ = Mathf.Deg2Rad*(90);
        Matrix4x4 rMatrixZ = new Matrix4x4 ();
        rMatrixZ.SetRow (0, new Vector4 (Mathf.Cos (angleZ), -Mathf.Sin (angleZ), 0, 0));
        rMatrixZ.SetRow (1, new Vector4 (Mathf.Sin (angleZ), Mathf.Cos (angleZ), 0, 0));
        rMatrixZ.SetRow (2, new Vector4 (0                  , 0             , 1, 0));
        rMatrixZ.SetRow (3, new Vector4 (0                  , 0             , 0, 1));

        float angleY = Mathf.Deg2Rad*(-180);
        Matrix4x4 rMatrixY = new Matrix4x4 ();
        rMatrixY.SetRow (0, new Vector4 (Mathf.Cos (angleY), 0, Mathf.Sin (angleY), 0));
        rMatrixY.SetRow (1, new Vector4 (0              ,   1 , 0, 0));
        rMatrixY.SetRow (2, new Vector4 (-Mathf.Sin (angleY)    , 0 , Mathf.Cos (angleY), 0));
        rMatrixY.SetRow (3, new Vector4 (0                  , 0             , 0, 1));

        float angleX = Mathf.Deg2Rad*(-180);
        Matrix4x4 rMatrixX = new Matrix4x4 ();
        rMatrixX.SetRow (0, new Vector4 (1, 0, 0, 0));
        rMatrixX.SetRow (1, new Vector4 (0, Mathf.Cos (angleX) , -Mathf.Sin (angleX), 0));
        rMatrixX.SetRow (2, new Vector4 (0,Mathf.Sin (angleX), Mathf.Cos (angleX), 0));
        rMatrixX.SetRow (3, new Vector4 (0                  , 0             , 0, 1));

        Matrix4x4 total = rMatrixZ * rMatrixY;//竖直排列从左往右读
        //Matrix4x4 total = rMatrixZ;//竖直排列从右往左读

        centerPos = total.MultiplyVector (centerPos);

        vertArray[i    ].position = centerPos + new Vector3( -halfOfwidth, halfOfheight, 0.0f);
        vertArray[i + 1].position = centerPos + new Vector3( halfOfwidth,  halfOfheight, 0.0f);
        vertArray[i + 2].position = centerPos + new Vector3(  halfOfwidth,  -halfOfheight, 0.0f);
        vertArray[i + 3].position = centerPos + new Vector3(  halfOfwidth,  -halfOfheight, 0.0f);
        vertArray[i + 4].position = centerPos + new Vector3(  -halfOfwidth, -halfOfheight, 0.0f);
        vertArray[i + 5].position = centerPos + new Vector3( -halfOfwidth, halfOfheight, 0.0f);


        listUIVertex[i] = vertArray[i];
        listUIVertex[i + 1] = vertArray[i + 1];
        listUIVertex[i + 2] = vertArray[i + 2];
        listUIVertex[i + 3] = vertArray[i + 3];
        listUIVertex[i + 4] = vertArray[i + 4];
        listUIVertex[i + 5] = vertArray[i + 5];
    }

    toFill.Clear();
    toFill.AddUIVertexTriangleStream(listUIVertex);

}

}