Creating a Window - Building a 3D Engine

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Tao.OpenGl;

namespace AGE_Engine3D.RenderObjects
{
    class TriangleGroup : IRenderOpenGL
    {
        #region Fields
        public List<Vertex> Vetices = new List<Vertex>();
        public bool IsFan = false; 
        #endregion

        #region Methods
        public void RenderOpenGL()
        {
            if (this.IsFan)
                Gl.glBegin(Gl.GL_TRIANGLE_FAN);
            else
                Gl.glBegin(Gl.GL_TRIANGLE_STRIP);

            foreach (Vertex tmpV in this.Vetices)
            {
                if(tmpV.IsColor)
                    Gl.glColor4fv(tmpV.Color.ToArray4f());
                if(tmpV.IsTextured)
                    Gl.glTexCoord2fv(tmpV.TextureCoor.ToArray2f());
                if(tmpV.IsNormal)
                    Gl.glNormal3fv(tmpV.Normal.ToArray3f());
                Gl.glVertex3fv(tmpV.Position.ToArray3f());
            }
            Gl.glEnd();
        } 
        #endregion
    }
}