Unity垂直排列UI.Text

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梦想游戏人

2017-09-28

Unity

最终效果。

UI.Text默认排列是横着来

像这样，如果要竖着排列这些字符，看了半天API和成员变量相关信息没看到有相关参数，最后在UI.Effect的实现中发现了

// 摘要:
// Adds an outline to a graphic using IVertexModifier.
[AddComponentMenu(“UI/Effects/Shadow”, 14)]
public class Shadow : BaseMeshEffect

可以利用相关Shadow一样的手法去对Text修改

处理后的代码，123456就竖着排列了，，在这里只提供基本方法，因为重定义了UIVertex相关信息，所以字符的排列规则比如（对其方式）要重写，在这里不继续深究了，抛砖引玉

[AddComponentMenu("Extension/VerticalText")]
[RequireComponent(typeof(UnityEngine.UI.Text))]
public class VerticalText : BaseMeshEffect
{
    Vector2 SetOneCharPosition(ref VertexHelper vh, int idx, Vector3 pos0)
    {
        if (idx % 4 != 0 || vh == null) return Vector2.zero;

        var tex0 = new UIVertex();
        vh.PopulateUIVertex(ref tex0, idx);

        var tex1 = new UIVertex();
        vh.PopulateUIVertex(ref tex1, idx + 1);

        var tex2 = new UIVertex();
        vh.PopulateUIVertex(ref tex2, idx + 2);

        var tex3 = new UIVertex();
        vh.PopulateUIVertex(ref tex3, idx + 3);

        float width = tex0.position.x - tex1.position.x;
        float height = tex0.position.y - tex3.position.y;
        var offset = pos0 - tex0.position;

        tex0.position = pos0;
        tex1.position += offset;
        tex2.position += offset;
        tex3.position += offset;

        vh.SetUIVertex(tex0, idx);
        vh.SetUIVertex(tex1, idx + 1);
        vh.SetUIVertex(tex2, idx + 2);
        vh.SetUIVertex(tex3, idx + 3);
        //  Debug.LogError(offset + "      " + tex0.uv0 + "   " + tex0.uv1);

        return new Vector2(width, height);
    }
    public override void ModifyMesh(VertexHelper vh)
    {
        //  var num = vh.currentVertCount;
        var text = this.GetComponent<Text>();
        var strs = text.text.Split('|');
        int ColStartIndex = 0;
        int vertexStartIndex = 0;
        /*   for (int colIndex = 0; colIndex < strs.Length; colIndex++, vertexStartIndex += 4)
           {
               {
                   UIVertex VertexOne = new UIVertex();
                   vh.PopulateUIVertex(ref VertexOne, 0);
                   SetOneCharPosition(vh, 0, VertexOne.position);
               }
           }
           */
        UIVertex VertexOne0 = new UIVertex();
        vh.PopulateUIVertex(ref VertexOne0, 0);

 
        float HEIGHT_PER_UNIT = 30f;
        float height_current = 0f;
        for (int col = 0; col < vh.currentVertCount; col++)
        {
            UIVertex VertexOne = new UIVertex();
            vh.PopulateUIVertex(ref VertexOne, col);
            height_current = 0f;
            float dx = 0f;
            dx =  col * 30f;

            for (int i = 0; i < vh.currentVertCount; i += 4)
            {
                float h = this.SetOneCharPosition(ref vh, i, VertexOne0.position + new Vector3(dx, 0f - HEIGHT_PER_UNIT * ((i) / 4), 0f)).y;
                height_current += 30f;
                if (height_current + 30f >= this.GetComponent<RectTransform>().rect.height)
                    return;
              //  Debug.LogError(this.GetComponent<RectTransform>().rect.height + "   cur=" + height_current);
            }
        }
    }

}

[AddComponentMenu("Extension/VerticalText")]
[RequireComponent(typeof(UnityEngine.UI.Text))]
public class VerticalText : BaseMeshEffect
{
Vector2 SetOneCharPosition(ref VertexHelper vh, int idx, Vector3 pos0)
{
if (idx % 4 != 0 || vh == null) return Vector2.zero;
var tex0 = new UIVertex();
vh.PopulateUIVertex(ref tex0, idx);
var tex1 = new UIVertex();
vh.PopulateUIVertex(ref tex1, idx + 1);
var tex2 = new UIVertex();
vh.PopulateUIVertex(ref tex2, idx + 2);
var tex3 = new UIVertex();
vh.PopulateUIVertex(ref tex3, idx + 3);
float width = tex0.position.x - tex1.position.x;
float height = tex0.position.y - tex3.position.y;
var offset = pos0 - tex0.position;
tex0.position = pos0;
tex1.position += offset;
tex2.position += offset;
tex3.position += offset;
vh.SetUIVertex(tex0, idx);
vh.SetUIVertex(tex1, idx + 1);
vh.SetUIVertex(tex2, idx + 2);
vh.SetUIVertex(tex3, idx + 3);
// Debug.LogError(offset + " " + tex0.uv0 + " " + tex0.uv1);
return new Vector2(width, height);
}
public override void ModifyMesh(VertexHelper vh)
{
// var num = vh.currentVertCount;
var text = this.GetComponent<Text>();
var strs = text.text.Split('|');
int ColStartIndex = 0;
int vertexStartIndex = 0;
/* for (int colIndex = 0; colIndex < strs.Length; colIndex++, vertexStartIndex += 4)
{
{
UIVertex VertexOne = new UIVertex();
vh.PopulateUIVertex(ref VertexOne, 0);
SetOneCharPosition(vh, 0, VertexOne.position);
}
}
*/
UIVertex VertexOne0 = new UIVertex();
vh.PopulateUIVertex(ref VertexOne0, 0);
float HEIGHT_PER_UNIT = 30f;
float height_current = 0f;
for (int col = 0; col < vh.currentVertCount; col++)
{
UIVertex VertexOne = new UIVertex();
vh.PopulateUIVertex(ref VertexOne, col);
height_current = 0f;
float dx = 0f;
dx = col * 30f;
for (int i = 0; i < vh.currentVertCount; i += 4)
{
float h = this.SetOneCharPosition(ref vh, i, VertexOne0.position + new Vector3(dx, 0f - HEIGHT_PER_UNIT * ((i) / 4), 0f)).y;
height_current += 30f;
if (height_current + 30f >= this.GetComponent<RectTransform>().rect.height)
return;
// Debug.LogError(this.GetComponent<RectTransform>().rect.height + " cur=" + height_current);
}
}
}
}

[AddComponentMenu("Extension/VerticalText")]
[RequireComponent(typeof(UnityEngine.UI.Text))]
public class VerticalText : BaseMeshEffect
{
    Vector2 SetOneCharPosition(ref VertexHelper vh, int idx, Vector3 pos0)
    {
        if (idx % 4 != 0 || vh == null) return Vector2.zero;

        var tex0 = new UIVertex();
        vh.PopulateUIVertex(ref tex0, idx);

        var tex1 = new UIVertex();
        vh.PopulateUIVertex(ref tex1, idx + 1);

        var tex2 = new UIVertex();
        vh.PopulateUIVertex(ref tex2, idx + 2);

        var tex3 = new UIVertex();
        vh.PopulateUIVertex(ref tex3, idx + 3);

        float width = tex0.position.x - tex1.position.x;
        float height = tex0.position.y - tex3.position.y;
        var offset = pos0 - tex0.position;

        tex0.position = pos0;
        tex1.position += offset;
        tex2.position += offset;
        tex3.position += offset;

        vh.SetUIVertex(tex0, idx);
        vh.SetUIVertex(tex1, idx + 1);
        vh.SetUIVertex(tex2, idx + 2);
        vh.SetUIVertex(tex3, idx + 3);
        //  Debug.LogError(offset + "      " + tex0.uv0 + "   " + tex0.uv1);

        return new Vector2(width, height);
    }
    public override void ModifyMesh(VertexHelper vh)
    {
        //  var num = vh.currentVertCount;
        var text = this.GetComponent<Text>();
        var strs = text.text.Split('|');
        int ColStartIndex = 0;
        int vertexStartIndex = 0;
        /*   for (int colIndex = 0; colIndex < strs.Length; colIndex++, vertexStartIndex += 4)
           {
               {
                   UIVertex VertexOne = new UIVertex();
                   vh.PopulateUIVertex(ref VertexOne, 0);
                   SetOneCharPosition(vh, 0, VertexOne.position);
               }
           }
           */
        UIVertex VertexOne0 = new UIVertex();
        vh.PopulateUIVertex(ref VertexOne0, 0);

 
        float HEIGHT_PER_UNIT = 30f;
        float height_current = 0f;
        for (int col = 0; col < vh.currentVertCount; col++)
        {
            UIVertex VertexOne = new UIVertex();
            vh.PopulateUIVertex(ref VertexOne, col);
            height_current = 0f;
            float dx = 0f;
            dx =  col * 30f;

            for (int i = 0; i < vh.currentVertCount; i += 4)
            {
                float h = this.SetOneCharPosition(ref vh, i, VertexOne0.position + new Vector3(dx, 0f - HEIGHT_PER_UNIT * ((i) / 4), 0f)).y;
                height_current += 30f;
                if (height_current + 30f >= this.GetComponent<RectTransform>().rect.height)
                    return;
              //  Debug.LogError(this.GetComponent<RectTransform>().rect.height + "   cur=" + height_current);
            }
        }
    }

}

Unity垂直排列UI.Text

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