sbox-public/engine/Sandbox.Tools/MapEditor/MapDoc/Nodes/MapStaticOverlay.cs

using NativeMapDoc;
using System;
using System.ComponentModel.DataAnnotations;

namespace Editor.MapDoc;

/// <summary>
/// An overlay which is rendered using a mesh generated by projecting faces onto
/// surrounding geometry. Baked during map compile so that there is no runtime component.
/// Also supports being limited to specific targets.
/// </summary>
[Display( Name = "Static Overlay" ), Icon( "layers" )]
public sealed class MapStaticOverlay : MapMesh
{
	internal CMapStaticOverlay overlayNative;

	internal MapStaticOverlay( HandleCreationData _ ) : base( _ ) { }

	public MapStaticOverlay( MapDocument mapDocument = null ) : base( new HandleCreationData() )
	{
		ThreadSafe.AssertIsMainThread();

		// Default to the active map document if none specificed
		mapDocument ??= MapEditor.Hammer.ActiveMap;

		Assert.IsValid( mapDocument );

		using var h = IHandle.MakeNextHandle( this );
		mapDocument.native.CreateStaticOverlay();
	}

	internal override void OnNativeInit( CMapNode ptr )
	{
		base.OnNativeInit( ptr );

		overlayNative = (CMapStaticOverlay)ptr;
	}

	internal override void OnNativeDestroy()
	{
		base.OnNativeDestroy();

		overlayNative = default;
	}

	public void CreateCenteredQuad( Vector2 size, Material material )
	{
		ArgumentNullException.ThrowIfNull( material );
		overlayNative.CreateCenteredQuad( size.x, size.y, material.Name );
	}
}