using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Content;
using Microsoft.Xna.Framework.Graphics;

namespace SpriteLoad
{
         public class Sprite
         {
               //поля класса
            public  Texture2D spriteTexture;//сам спрайт
            public Vector2 positiontexture;//поззиция спрайта
                  
             int frameCount;//размер анимационной последовательности
             double timeFrame;//время показа одного спрайта
             int frame;//номер спрай та
             double totalEclipse;//время прошедшее с последнего показа спрайта

             //параметрический конструктор для анимации спрайта
             public Sprite(int frameCount, int framePerSec)
             {
                 this.frameCount = frameCount;
                 timeFrame = 1D / framePerSec;
                 frame = 0;
                 totalEclipse = 0;
             }
             //пустой конструктор
             public Sprite()
             {
             }
             //переход к следующему фрейму
             public void UpdateFrame(double eclipsed)
             {
                 totalEclipse += eclipsed;
                 if (totalEclipse > timeFrame)
                 {
                     frame++;//счетчик кадров
                     frame = frame % (frameCount - 1);//делние по модулю
                     totalEclipse = 0D;//текущее время показа одного фрейма
                 }
             }
             //рисованиеи текущего спрайта анимационной последовательности
             public void DrawAnimSprite(SpriteBatch spriteBatch)
             {
                 int frameWight = spriteTexture.Width / frameCount;//вычисляем ширину текстуры
                 int frameHeight = spriteTexture.Height;

                 //вычисляем прямоугольник для отрисовки спрайта
                 Rectangle rec = new Rectangle(frameWight * frame, 0, frameWight, frameHeight);

                 //рисуем кадр
                 spriteBatch.Draw(spriteTexture,positiontexture,rec,Color.White);
             }
             //загрузка  спрайта
             public void LoadSprite(ContentManager content, string fileName)
             {
                 spriteTexture = content.Load<Texture2D>(fileName);//вот здесь выдает исключение
             }
             //рисованиепростого спрайта
             public void DrawSprite(SpriteBatch spriteBatch)
             {
                 spriteBatch.Draw(spriteTexture, positiontexture, Color.White);
             }
         }
}

using System;
using System.Collections.Generic;
using System.Linq;
using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Audio;
using Microsoft.Xna.Framework.Content;
using Microsoft.Xna.Framework.GamerServices;
using Microsoft.Xna.Framework.Graphics;
using Microsoft.Xna.Framework.Input;
using Microsoft.Xna.Framework.Media;
using Microsoft.Xna.Framework.Net;
using Microsoft.Xna.Framework.Storage;

using SpriteLoad; //подключаем тот самый dll

namespace LoadSprite_Test
{
         /// <summary>
         /// This is the main type for your game
         /// </summary>
         public class Game1 : Microsoft.Xna.Framework.Game
         {
             GraphicsDeviceManager graphics;
             SpriteBatch spriteBatch;

             Sprite sprite;

             public Game1()
             {
                 graphics = new GraphicsDeviceManager(this);
                 Content.RootDirectory = "Content";

                 sprite = new Sprite(12, 10);
                 sprite.positiontexture = new Vector2(100, 100);
             }

             /// <summary>
             /// Allows the game to perform any initialization it needs to before starting to run.
             /// This is where it can query for any required services and load any non-graphic
             /// related content.  Calling base.Initialize will enumerate through any components
             /// and initialize them as well.
             /// </summary>
             protected override void Initialize()
             {
                 // TODO: Add your initialization logic here

                 base.Initialize();
             }

             /// <summary>
             /// LoadContent will be called once per game and is the place to load
             /// all of your content.
             /// </summary>
             protected override void LoadContent()
             {
                 // Create a new SpriteBatch, which can be used to draw textures.
                 spriteBatch = new SpriteBatch(GraphicsDevice);

                 // TODO: use this.Content to load your game content here
                sprite.LoadSprite(this.Content,"Textures\\0");  
             }

             /// <summary>
             /// UnloadContent will be called once per game and is the place to unload
             /// all content.
             /// </summary>
             protected override void UnloadContent()
             {
                 // TODO: Unload any non ContentManager content here
             }

             /// <summary>
             /// Allows the game to run logic such as updating the world,
             /// checking for collisions, gathering input, and playing audio.
             /// </summary>
             /// <param name="gameTime">Provides a snapshot of timing values.</param>
             protected override void Update(GameTime gameTime)
             {
                 // Allows the game to exit
                 if (GamePad.GetState(PlayerIndex.One).Buttons.Back == ButtonState.Pressed)
                     this.Exit();

                 // TODO: Add your update logic here
                 double eclipsed = gameTime.ElapsedGameTime.TotalSeconds;
                // sprite.UpdateFrame(eclipsed);

                 base.Update(gameTime);
             }

             /// <summary>
             /// This is called when the game should draw itself.
             /// </summary>
             /// <param name="gameTime">Provides a snapshot of timing values.</param>
             protected override void Draw(GameTime gameTime)
             {
                 GraphicsDevice.Clear(Color.CornflowerBlue);

                 // TODO: Add your drawing code here
                 spriteBatch.Begin();
                sprite.DrawAnimSprite(spriteBatch);
                 spriteBatch.End();

                 base.Draw(gameTime);
             }
         }
}

               public Vector3 Position;//открытое поле для позиции        
               Model model;//сама модель
               ContentManager Content;//ссылка на контент проекта

                  
              //конструктор класса  внем мы предаем наш контент по загрузки модели
               public LoadModelGame(ContentManager Content)
               {
                   this.Content = Content;
               }

                  
               //метод загрузки передаем в параметрах строку
               //на файл который будем загружать
               public void Load(string fileName)
               {
                   model = Content.Load<Model>(fileName);
               }

                  
//в методк Draw мы выводим модель на экран в параметрах передаем матрицы вида и проекции
               //матрица трансформациии здесь.Если нам нужно поменять координаты модели есть открытое свойство Position
               public void Draw(Matrix view, Matrix project)
               {
                   foreach (ModelMesh mesh in model.Meshes)
                   {
                       foreach (BasicEffect effect in mesh.Effects)
                       {
                           effect.EnableDefaultLighting();
                           effect.World = Matrix.CreateTranslation(Position);
                           effect.View = view;
                           effect.Projection = project;
                       }
                       mesh.Draw();
                   }
               }

using System;
using System.Collections.Generic;
using System.Linq;
using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Audio;
using Microsoft.Xna.Framework.Content;
using Microsoft.Xna.Framework.GamerServices;
using Microsoft.Xna.Framework.Graphics;
using Microsoft.Xna.Framework.Input;
using Microsoft.Xna.Framework.Media;
namespace LoadModel
{
           class LoadModelGame
           {
               public Vector3 Position;//открытое поле для позиции        
               Model model;//сама модель
               ContentManager Content;//ссылка на контент проекта

               //конструктор класса  внем мы предаем наш контент по загрузки модели
               public LoadModelGame(ContentManager Content)
               {
                   this.Content = Content;
               }
               //метод загрузки передаем в параметрах строку
               //на файл который будем загружать
               public void Load(string fileName)
               {
                   model = Content.Load<Model>(fileName);
               }
               //в методк Draw мы выводим модель на экран в параметрах передаем матрицы вида и проекции
               //матрица трансформациии здесь.Если нам нужно поменять координаты модели есть открытое свойство Position
               public void Draw(Matrix view, Matrix project)
               {
                   foreach (ModelMesh mesh in model.Meshes)
                   {
                       foreach (BasicEffect effect in mesh.Effects)
                       {
                           effect.EnableDefaultLighting();
                           effect.World = Matrix.CreateTranslation(Position);
                           effect.View = view;
                           effect.Projection = project;
                       }
                       mesh.Draw();
                   }
               }

           }
}

using System;
using System.Collections.Generic;
using System.Linq;
using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Audio;
using Microsoft.Xna.Framework.Content;
using Microsoft.Xna.Framework.GamerServices;
using Microsoft.Xna.Framework.Graphics;
using Microsoft.Xna.Framework.Input;
using Microsoft.Xna.Framework.Media;

namespace LoadModel
{
     class Camera
     {
         public Vector3 Position;//отрытое свойство позиции
         Game1 game;

         public Matrix view;//матрица вида
         public Matrix projectoion;//матрица проекции

         public Camera(Game1 game)
         {
             this.game = game;
         }
         public void Render()
         {
             view = Matrix.CreateLookAt(Position, Vector3.Zero, Vector3.Up);

             projectoion = Matrix.CreatePerspectiveFieldOfView(MathHelper.ToRadians(45.0f),
                 game.GraphicsDevice.Viewport.Width / game.GraphicsDevice.Viewport.Height,
                 0.10f, 1000.0f);
         }

     }
}

          using System;
using System.Collections.Generic;
using System.Linq;
using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Audio;
using Microsoft.Xna.Framework.Content;
using Microsoft.Xna.Framework.GamerServices;
using Microsoft.Xna.Framework.Graphics;
using Microsoft.Xna.Framework.Input;
using Microsoft.Xna.Framework.Media;

namespace LoadModel
{
           /// <summary>
           /// This is the main type for your game
           /// </summary>
           public class Game1 : Microsoft.Xna.Framework.Game
           {
               GraphicsDeviceManager graphics;
               SpriteBatch spriteBatch;

               //создаем экземпляры камеры и модели
               LoadModelGame model;
               Camera camera;
               public Game1()
               {
                   graphics = new GraphicsDeviceManager(this);
                   Content.RootDirectory = "Content";

                   //устанавливаем разрешение
                   graphics.PreferredBackBufferWidth = 800;
                   graphics.PreferredBackBufferHeight = 600;

                   //создаем их с помощью new  и передаем то что мы объявили в конструкторе
                   model = new LoadModelGame(this.Content);//ключивое слово this указывает что использовать ЭТОТ..        
                   //в данном случае контент
                   camera = new Camera(this);
                   camera.Position = new Vector3(0, 5, 260);
               }

               /// <summary>
               /// Allows the game to perform any initialization it needs to before starting to run.
               /// This is where it can query for any required services and load any non-graphic
               /// related content.  Calling base.Initialize will enumerate through any components
               /// and initialize them as well.
               /// </summary>
               protected override void Initialize()
               {
                   // TODO: Add your initialization logic here

                   base.Initialize();
               }

               /// <summary>
               /// LoadContent will be called once per game and is the place to load
               /// all of your content.
               /// </summary>
               protected override void LoadContent()
               {
                   // Create a new SpriteBatch, which can be used to draw textures.
                   spriteBatch = new SpriteBatch(GraphicsDevice);
                   //грузим объекты
                   model.Load("Models\\teraport");
               }

               /// <summary>
               /// UnloadContent will be called once per game and is the place to unload
               /// all content.
               /// </summary>
               protected override void UnloadContent()
               {
                   // TODO: Unload any non ContentManager content here
               }

               /// <summary>
               /// Allows the game to run logic such as updating the world,
               /// checking for collisions, gathering input, and playing audio.
               /// </summary>
               /// <param name="gameTime">Provides a snapshot of timing values.</param>
               protected override void Update(GameTime gameTime)
               {
                   // Allows the game to exit
                   if (GamePad.GetState(PlayerIndex.One).Buttons.Back == ButtonState.Pressed)
                       this.Exit();

                   // TODO: Add your update logic here

                   base.Update(gameTime);
               }

               /// <summary>
               /// This is called when the game should draw itself.
               /// </summary>
               /// <param name="gameTime">Provides a snapshot of timing values.</param>
               protected override void Draw(GameTime gameTime)
               {
                   GraphicsDevice.Clear(Color.CornflowerBlue);
                   //вызываем метод камеры        
                   camera.Render();
                   //здесь в параметрах camera.view, camera.projectoion
                   //это то что мы в классе камеры хделали открытые свойство        
                   //Matrix view;Matrix projec
                   model.Draw(camera.view, camera.projectoion);

                   // TODO: Add your drawing code here

                   base.Draw(gameTime);
               }
           }
}