//---------------------------------------------------------------------------------------------------------------------------------------------------
// <copyright file="GpuObject.cs" company="DarkWynter Studios">
//     Copyright (C)2007 DarkWynter Studios.  All rights reserved.
// </copyright>
//---------------------------------------------------------------------------------------------------------------------------------------------------
// {Contact : darkwynter.com for licensing information
//---------------------------------------------------------------------------------------------------------------------------------------------------

namespace DarkWynter.Game.GameObjects
{
    #region Using Statements
    using System;
    using System.Collections.Generic;
    using Microsoft.Xna.Framework;
    using Microsoft.Xna.Framework.Audio;
    using Microsoft.Xna.Framework.Content;
    using Microsoft.Xna.Framework.Graphics;
    using Microsoft.Xna.Framework.Input;
    using Microsoft.Xna.Framework.Storage;
    using System.Xml;
    using System.Diagnostics;
    #endregion

    using DarkWynter.Engine.Globals;
    using DarkWynter.Engine.ObjectLib;
    using DarkWynter.Engine.GameObjects;
    using DarkWynter.Engine.Init;
    using DarkWynter.Stream;

    /// <summary>
    /// Represents a single object with physics being computed on the Gpu.
    /// </summary>
    public class GpuObject : GameObject, IGpuObject
    {
        /// <summary>
        /// GpuObject constructor.
        /// </summary>
        public GpuObject(Load gameObjectLoader)
            : base(gameObjectLoader)
        {
            mass.objectType = Enums_Engine.ObjectType.GPU_OBJECT;
            draw = new Draw(Enums_Stream.DrawMethod.BasicGameObject_Draw, "BasicLightingShaderMain");
        }

        /// <summary>
        /// Override Load function.
        /// </summary>
        /// <param name="node">Xml node containing this objects xml data.</param>
        /// <param name="objectLibrary">ObjectLibrary this object belongs to.</param>
        /// <returns>True if loaded correctly.</returns>
        public override bool Load(ObjectLibrary objectLibrary)
        {
            if (!base.Load(objectLibrary))
            {
                return false;
            }
            return true;
        }

        /// <summary>
        /// Override Update function
        /// </summary>
        /// <param name="objectLibrary">ObjectLibrary this object belongs to.</param>
        public override void Update(ref ObjectLibrary objectLibrary)
        {
            base.Update(ref objectLibrary);
        }

        /// <summary>
        /// Override Draw function
        /// </summary>
        public override Draw Draw()
        {
            // Lighting
            ShaderParameters.DrawFX.shininess.SetValue(7000.0f);

            // Calculate ObjectSpace(Rotation) and WorldSpace(Translation) Transformation Matrix
            draw.matrix = draw.initialTransform * Matrix.CreateScale(mass.scale) *
                          Matrix.CreateFromQuaternion(mass.currentRotation) *
                          Matrix.CreateTranslation(mass.currentPosition);

            return draw;
        }
    }
}