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using System.Collections.Generic;
namespace UnityEngine.UI
{
[AddComponentMenu("UI/Effects/Outline", 15)]
public class Outline : Shadow
{
protected Outline()
{}
public override void ModifyMesh(VertexHelper vh)
{
if (!IsActive())
return;
var verts = ListPool<UIVertex>.Get();
vh.GetUIVertexStream(verts);
var neededCpacity = verts.Count * 5;
if (verts.Capacity < neededCpacity)
verts.Capacity = neededCpacity;
var start = 0;
var end = verts.Count;
ApplyShadowZeroAlloc(verts, effectColor, start, verts.Count, effectDistance.x, effectDistance.y);
start = end;
end = verts.Count;
ApplyShadowZeroAlloc(verts, effectColor, start, verts.Count, effectDistance.x, -effectDistance.y);
start = end;
end = verts.Count;
ApplyShadowZeroAlloc(verts, effectColor, start, verts.Count, -effectDistance.x, effectDistance.y);
start = end;
end = verts.Count;
ApplyShadowZeroAlloc(verts, effectColor, start, verts.Count, -effectDistance.x, -effectDistance.y);
vh.Clear();
vh.AddUIVertexTriangleStream(verts);
ListPool<UIVertex>.Release(verts);
}
}
}
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