using System;
using TriangleNet.Topology;

namespace TriangleNet.Geometry
{
	public class Vertex : Point
	{
		internal int hash;

		internal VertexType type;

		internal Otri tri;

		public VertexType Type => type;

		public double this[int i] => i switch
		{
			0 => x, 
			1 => y, 
			_ => throw new ArgumentOutOfRangeException("Index must be 0 or 1."), 
		};

		public Vertex()
			: this(0.0, 0.0, 0)
		{
		}

		public Vertex(double x, double y)
			: this(x, y, 0)
		{
		}

		public Vertex(double x, double y, int mark)
			: base(x, y, mark)
		{
			type = VertexType.InputVertex;
		}

		public override int GetHashCode()
		{
			return hash;
		}
	}
}