using SFML.Graphics;
using SFML.System;
using SFML.Window;
using System;

namespace Otter {
    /// <summary>
    /// Class that represents a Vertex.  Just a wrapper for an SFML Vertex.
    /// </summary>
    public class Vert {

        #region Private Fields

        Vertex vertex;

        #endregion

        #region Public Properties

        /// <summary>
        /// The Color of the Vert.
        /// </summary>
        public Color Color {
            get { return new Color(vertex.Color); }
            set { vertex.Color = value.SFMLColor; }
        }

        /// <summary>
        /// The X position.
        /// </summary>
        public float X {
            get { return vertex.Position.X; }
            set { vertex.Position = new Vector2f(value, vertex.Position.Y); }
        }

        /// <summary>
        /// The Y position.
        /// </summary>
        public float Y {
            get { return vertex.Position.Y; }
            set { vertex.Position = new Vector2f(vertex.Position.X, value); }
        }

        /// <summary>
        /// The X, Y position as a Vector2.
        /// </summary>
        public Vector2 Position {
            get { return new Vector2(vertex.Position.X, vertex.Position.Y); }
            set { vertex.Position = new Vector2f((float)value.X, (float)value.Y); }
        }

        /// <summary>
        /// The X, Y position of the Texture as a Vector2.
        /// </summary>
        public Vector2 TexCoords {
            get { return new Vector2(vertex.TexCoords.X, vertex.TexCoords.Y); }
            set { vertex.TexCoords = new Vector2f((float)value.X, (float)value.Y); }
        }

        /// <summary>
        /// The X position of the Texture.
        /// </summary>
        public float U {
            get { return vertex.TexCoords.X; }
            set { vertex.TexCoords = new Vector2f(value, vertex.TexCoords.Y); }
        }

        /// <summary>
        /// The Y position of the Texture.
        /// </summary>
        public float V {
            get { return vertex.TexCoords.Y; }
            set { vertex.TexCoords = new Vector2f(vertex.TexCoords.X, value); }
        }

        #endregion

        #region Public Methods

        public override string ToString() {
            return String.Format("X: {0} Y: {1} Color: {2} U: {3} V: {4}", X, Y, Color, U, V);
        }

        #endregion

        #region Constructors

        /// <summary>
        /// Create a new Vert.
        /// </summary>
        /// <param name="x">The X position.</param>
        /// <param name="y">The Y position.</param>
        /// <param name="color">The Color.</param>
        /// <param name="u">The X position on the Texture.</param>
        /// <param name="v">The Y position on the Texture.</param>
        public Vert(float x, float y, Color color, float u, float v) {
            vertex = new SFML.Graphics.Vertex(new Vector2f(x, y), color.SFMLColor, new Vector2f(u, v));
        }

        /// <summary>
        /// Create a new Vert.
        /// </summary>
        /// <param name="copy">A source Vert to copy.</param>
        public Vert(Vert copy) : this(copy.X, copy.Y, copy.Color, copy.U, copy.V) { }

        /// <summary>
        /// Create a new white Vert at 0, 0.
        /// </summary>
        public Vert() : this(0, 0, Color.White, 0, 0) { }

        /// <summary>
        /// Create a new Vert.
        /// </summary>
        /// <param name="x">The X position.</param>
        /// <param name="y">The Y position.</param>
        public Vert(float x, float y) : this(x, y, Color.White, 0, 0) { }

        /// <summary>
        /// Create a new Vert.
        /// </summary>
        /// <param name="x">The X position.</param>
        /// <param name="y">The Y position.</param>
        /// <param name="u">The X position on the Texture.</param>
        /// <param name="v">The Y position on the Texture.</param>
        public Vert(float x, float y, float u, float v) : this(x, y, Color.White, u, v) { }

        /// <summary>
        /// Create a new Vert.
        /// </summary>
        /// <param name="x">The X position.</param>
        /// <param name="y">The Y position.</param>
        /// <param name="color">The Color.</param>
        public Vert(float x, float y, Color color) : this(x, y, color, 0, 0) { }

        #endregion

        #region Internal

        internal Vertex SFMLVertex {
            get { return vertex; }
        }

        #endregion
        
    }
}