// Copyright (c) Six Labors.
// Licensed under the Six Labors Split License.

namespace SixLabors.PolygonClipper {
  /// <summary>
  /// Represents a pending intersection between two active edges.
  /// </summary>
  /// <remarks>
  /// Intersections are sorted and processed from higher scanlines to lower ones so
  /// that edge order in the AEL remains consistent as the sweep descends.
  /// </remarks>
  internal readonly struct IntersectNode
  {
#pragma warning disable SA1401 // Hot path intersection sorting benefits from field access.
      /// <summary>
      /// Gets the intersection point between <see cref="Edge1"/> and <see cref="Edge2"/>.
      /// </summary>
      public readonly Vertex Point;

      /// <summary>
      /// Gets the first active edge participating in the intersection.
      /// </summary>
      public readonly ActiveEdge Edge1;

      /// <summary>
      /// Gets the second active edge participating in the intersection.
      /// </summary>
      public readonly ActiveEdge Edge2;
#pragma warning restore SA1401

      /// <summary>
      /// Initializes a new instance of the <see cref="IntersectNode"/> struct.
      /// </summary>
      internal IntersectNode(Vertex point, ActiveEdge edge1, ActiveEdge edge2)
      {
          this.Point = point;
          this.Edge1 = edge1;
          this.Edge2 = edge2;
      }
  }
}