Space and Matrix Transformations - Building a 3D Engine

using System;
using System.Collections.Generic;
using System.Text;
using AGE_Engine3D.Math;

namespace AGE_Engine3D.RenderObjects
{
    public struct Vertex
    {
        public bool IsNormal;
        public bool IsColor;
        public bool IsTextured;

        public AGE_Vector3Df Position;
        private AGE_Vector3Df _Normal;
        private AGE_Color4f _Color;
        private AGE_TextureCoordinate2f _TextureCoor;

        public AGE_Vector3Df Normal
        {
            get { return this._Normal; }
            set
            {
                this._Normal = value;
                this.IsNormal = true;
            }
        }
        public AGE_Color4f Color
        {
            get { return this._Color; }
            set
            {
                this._Color = value;
                this.IsColor = true;
            }
        }
        public AGE_TextureCoordinate2f TextureCoor
        {
            get { return this._TextureCoor; }
            set { this._TextureCoor = value; }
        }
    }
}