HeavenStudioPlus/Assets/Plugins/com.unity.uiextensions/Runtime/Scripts/Utilities/NonDrawingGraphic.cs
2022-01-05 19:11:33 -05:00

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C#

/// Credit Slipp Douglas Thompson
/// Sourced from - https://gist.github.com/capnslipp/349c18283f2fea316369
namespace UnityEngine.UI.Extensions
{
/// A concrete subclass of the Unity UI `Graphic` class that just skips drawing.
/// Useful for providing a raycast target without actually drawing anything.
[AddComponentMenu("Layout/Extensions/NonDrawingGraphic")]
public class NonDrawingGraphic : MaskableGraphic
{
public override void SetMaterialDirty() { return; }
public override void SetVerticesDirty() { return; }
/// Probably not necessary since the chain of calls `Rebuild()`->`UpdateGeometry()`->`DoMeshGeneration()`->`OnPopulateMesh()` won't happen; so here really just as a fail-safe.
protected override void OnPopulateMesh(VertexHelper vh)
{
vh.Clear();
return;
}
}
}