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using System;
using System.Collections.Generic;
using UnityEngine.EventSystems;
namespace UnityEngine.UI
{
[Obsolete("Use BaseMeshEffect instead", true)]
public abstract class BaseVertexEffect
{
[Obsolete("Use BaseMeshEffect.ModifyMeshes instead", true)] //We can't upgrade automatically since the signature changed.
public abstract void ModifyVertices(List<UIVertex> vertices);
}
// 关键在于实现IMeshModifier接口，自己写效果，不一定要继承这个类
[ExecuteInEditMode]
public abstract class BaseMeshEffect : UIBehaviour, IMeshModifier
{
[NonSerialized]
private Graphic m_Graphic;
protected Graphic graphic
{
get
{
if (m_Graphic == null)
m_Graphic = GetComponent<Graphic>();
return m_Graphic;
}
}
protected override void OnEnable()
{
base.OnEnable();
if (graphic != null)
graphic.SetVerticesDirty();
}
protected override void OnDisable()
{
if (graphic != null)
graphic.SetVerticesDirty();
base.OnDisable();
}
protected override void OnDidApplyAnimationProperties()
{
if (graphic != null)
graphic.SetVerticesDirty();
base.OnDidApplyAnimationProperties();
}
#if UNITY_EDITOR
protected override void OnValidate()
{
base.OnValidate();
if (graphic != null)
graphic.SetVerticesDirty();
}
#endif
public virtual void ModifyMesh(Mesh mesh)
{
using (var vh = new VertexHelper(mesh))
{
ModifyMesh(vh);
vh.FillMesh(mesh);
}
}
public abstract void ModifyMesh(VertexHelper vh);
}
}
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