#region File Description
//-----------------------------------------------------------------------------
// ModelViewerControl.cs
//
// Microsoft XNA Community Game Platform
// Copyright (C) Microsoft Corporation. All rights reserved.
//-----------------------------------------------------------------------------
#endregion

#region Using Statements
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Windows.Forms;
using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Graphics;
#endregion

namespace WinFormsContentLoading
{
    /// <summary>
    /// Example control inherits from GraphicsDeviceControl, and displays
    /// a spinning 3D model. The main form class is responsible for loading
    /// the model: this control just displays it.
    /// </summary>
    public class ModelViewerControl : GraphicsDeviceControl
    {
        // Timer controls the rotation speed.
        Stopwatch timer;
        

        /// <summary>
        /// Initializes the control.
        /// </summary>
        protected override void Initialize()
        {
            // Start the animation timer.
            timer = Stopwatch.StartNew();

            // Hook the idle event to constantly redraw our animation.
            Application.Idle += delegate { Invalidate(); };
        }


        /// <summary>
        /// Draws the control.
        /// </summary>
        protected override void Draw()
        {
            // Clear to the default control background color.
            Color backColor = new Color(BackColor.R, BackColor.G, BackColor.B);
            GraphicsDevice.Clear(backColor);

            for (int x = 0; x < Globals.penStylesList.Count; x++)
            {
                if (Globals.penStylesList[x].nameID == Globals.thisPen.ToString())
                {

                    // Compute camera matrices.
                    float rotation = (float)timer.Elapsed.TotalSeconds;

                    Vector3 eyePosition = Globals.penStylesList[x].modelCenter;

                    eyePosition.Z += Globals.penStylesList[x].modelRadius * 2;
                    eyePosition.Y += Globals.penStylesList[x].modelRadius;

                    float aspectRatio = GraphicsDevice.Viewport.AspectRatio;

                    float nearClip = Globals.penStylesList[x].modelRadius / 100;
                    float farClip = Globals.penStylesList[x].modelRadius * 100;

                    Matrix world = Matrix.CreateRotationY(rotation);
                    Matrix view = Matrix.CreateLookAt(eyePosition, Globals.penStylesList[x].modelCenter, Vector3.Up);
                    Matrix projection = Matrix.CreatePerspectiveFieldOfView(1, aspectRatio,
                                                                        nearClip, farClip);

                    // Draw the model.
                    foreach (ModelMesh mesh in Globals.penStylesList[x].Model.Meshes)
                    {
                        foreach (BasicEffect effect in mesh.Effects)
                        {
                           // effect.EnableDefaultLighting();
                            effect.TextureEnabled = true;

                            effect.Texture = Globals.penStylesList[x].ModelTexture;

                            effect.World = Globals.penStylesList[x].boneTransforms[mesh.ParentBone.Index] * world;
                            effect.View = view;
                            effect.Projection = projection;


                            // effect.PreferPerPixelLighting = true;
                            // effect.SpecularPower = 16;
                        }

                        mesh.Draw();

                    }
                }
            }
        }


    }
}