Dirty fix

using SharpDX;
using SharpDX.Direct3D11;
using System;
using System.Collections.Generic;
using System.Runtime.CompilerServices;

namespace VoidwalkerEngine.Framework.DirectX.Rendering
{
    public static class Wireframe
    {
        public static ModelMesh GenerateWireframeSphere(Device device, Vector3 location, float radius)
        {
            float pi = (float)Math.PI;
            List<Vertex> vertices = new List<Vertex>();
            float twoPi = 2 * pi;
            float angleStep = (twoPi / 16f);
            for (float angle = 0f; angle <= twoPi; angle += angleStep)
            {
                float x = radius * (float)Math.Sin(angle);
                float y = radius * (float)Math.Cos(angle);
                float z = 0;
                vertices.Add(new Vertex(location.X + x, location.Y + y, location.Z + z));
            }
            // A Dirty, nasty, ugly, horrific fix.
            List<Vertex> additions = new List<Vertex>();
            for(int i = 0; i < vertices.Count; i += 2)
            {
                if(i + 2 < vertices.Count)
                {
                    Vertex vertex1 = vertices[i + 1];
                    Vertex vertex2 = vertices[i + 2];
                    additions.Add(vertex1);
                    additions.Add(vertex2);
                }
                else
                {
                    additions.Add(vertices[vertices.Count - 1]);
                    additions.Add(vertices[0]);
                }

            }
            vertices.AddRange(additions);
            for (float angle = 0f; angle <= twoPi; angle += angleStep)
            {
                float x = radius * (float)Math.Sin(angle);
                float y = 0;
                float z = radius * (float)Math.Cos(angle);
                vertices.Add(new Vertex(location.X + x, location.Y + y, location.Z + z));
            }
            for (float angle = 0f; angle <= twoPi; angle += angleStep)
            {
                float x = 0;
                float y = radius * (float)Math.Sin(angle);
                float z = radius * (float)Math.Cos(angle);
                vertices.Add(new Vertex(location.X + x, location.Y + y, location.Z + z));
            }
            ModelMesh mesh = new ModelMesh(device, vertices.ToArray());
            return mesh;
        }
    }
}