45 lines
1.4 KiB
C#
45 lines
1.4 KiB
C#
using System.Collections;
|
|
using System.Collections.Generic;
|
|
using UnityEngine;
|
|
using UnityEngine.UI;
|
|
/// <summary>
|
|
/// ************字体颜色渐变****************************挂在Text上调节颜色即可********************************
|
|
/// </summary>
|
|
[AddComponentMenu("UI/Effects/GradientText")]
|
|
public class GradientText : BaseMeshEffect
|
|
{
|
|
[SerializeField]
|
|
private Color32 topColor = Color.white;
|
|
|
|
[SerializeField]
|
|
private Color32 bottomColor = Color.black;
|
|
|
|
public override void ModifyMesh(VertexHelper vh)
|
|
{
|
|
if (!IsActive() || vh.currentVertCount == 0)
|
|
return;
|
|
List<UIVertex> vertices = new List<UIVertex>();
|
|
vh.GetUIVertexStream(vertices);
|
|
float bottomY = vertices[0].position.y;
|
|
float topY = vertices[0].position.y;
|
|
for (int i = 1; i < vertices.Count; i++)
|
|
{
|
|
if (vertices[i].position.y > topY)
|
|
{
|
|
topY = vertices[i].position.y;
|
|
}
|
|
else if (vertices[i].position.y < bottomY)
|
|
{
|
|
bottomY = vertices[i].position.y;
|
|
}
|
|
}
|
|
float uiElementHeight = topY - bottomY;
|
|
UIVertex v = new UIVertex();
|
|
for (int i = 0; i < vh.currentVertCount; i++)
|
|
{
|
|
vh.PopulateUIVertex(ref v, i);
|
|
v.color = Color32.Lerp(bottomColor, topColor, (v.position.y - bottomY) / uiElementHeight);
|
|
vh.SetUIVertex(v, i);
|
|
}
|
|
}
|
|
} |