An authoring/editor UI component that represents a polygon blob for the Goo editor. It stores polygon vertex points (unit coordinates) and a rectangular hit-test toggle, and creates a Sandbox.UI Polygon element wired to various mouse/click event handlers.
using Goo;
using Sandbox;
using Sandbox.UI;
namespace Goo.Authoring;
/// <summary>A Goo Polygon authored in the editor.</summary>
[Title( "Goo Polygon" )]
[Category( "Goo" )]
[Icon( "pentagon" )]
public sealed partial class PolygonNode : BlobNode
{
/// <summary>Vertices in unit coordinates from 0 to 1.</summary>
[Property, Group( "Shape" ), Order( 5 )]
public Vector2[] Points { get; set; } = new[]
{
new Vector2( 0.5f, 0f ),
new Vector2( 1f, 1f ),
new Vector2( 0f, 1f ),
};
/// <summary>When true, input hits the full bounding box.</summary>
[Property, Group( "Shape" ), Order( 5 )] public bool RectHitTest { get; set; }
internal override void AddTo( Children children ) =>
children.Add( WithStyles( new Polygon
{
Key = BlobKey,
Points = Points,
RectHitTest = RectHitTest,
OnClick = BlobOnClick,
OnRightClick = BlobOnRightClick,
OnMiddleClick = BlobOnMiddleClick,
OnMouseEnter = BlobOnMouseEnter,
OnMouseLeave = BlobOnMouseLeave,
OnMouseDown = BlobOnMouseDown,
OnMouseUp = BlobOnMouseUp,
OnMouseMove = BlobOnMouseMove,
} ) );
}