namespace Game
{
     class Sprite
     {
         public Texture2D spriteTexture;
         public Vector2 spritePosition;

         private int frameCount;
         private double timeFrame;
         private int frame;
         private double totalElapsed;

         public Sprite(int frameCounts, int framesPerSec)
         {
             frameCount = frameCounts;
             timeFrame = (float)1 / framesPerSec;
             frame = 0;
             totalElapsed = 0;
         }

         public void UpdateFarme(double elapsed)
         {
             totalElapsed += elapsed;
             if (totalElapsed > elapsed)
             {
                 frame++;
                 frame = frame % (frameCount - 1);
                 totalElapsed -= timeFrame;
             }
         }

         public void Load(ContentManager content, String stringTexture)
         {
             spriteTexture = content.Load<Texture2D>(stringTexture);
         }

         public void Draw(SpriteBatch spriteBatch)
         {
             spriteBatch.Draw(spriteTexture, spritePosition, Color.White);
         }

         public void DrawAnimationSprite(SpriteBatch spritebatch)
         {
             int frameWight = spriteTexture.Width / frameCount;
             Rectangle rect = new Rectangle(frameWight * frame, 0, frameWight, spriteTexture.Height);
             spritebatch.Draw(spriteTexture, spritePosition, rect, Color.White);
         }
     }
}

namespace Game
{
     public class Game1 : Microsoft.Xna.Framework.Game
     {
         GraphicsDeviceManager graphics;
         SpriteBatch spriteBatch;

         Sprite sprite;

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

             graphics.PreferredBackBufferHeight = 600;
             graphics.PreferredBackBufferWidth = 800;

             sprite = new Sprite(2, 1);
         }

         protected override void Initialize()
         {
             sprite.spritePosition = new Vector2(200,200);

             base.Initialize();
         }

         protected override void LoadContent()
         {
             spriteBatch = new SpriteBatch(GraphicsDevice);
             sprite.Load(Content,"Folder\\hero_step");
         }

         protected override void UnloadContent()
         {
         }

         protected override void Update(GameTime gameTime)
         {
             if (GamePad.GetState(PlayerIndex.One).Buttons.Back == ButtonState.Pressed)
                 this.Exit();

             double elapsed = gameTime.ElapsedGameTime.TotalSeconds;
             sprite.UpdateFarme(elapsed);

             base.Update(gameTime);
         }

         protected override void Draw(GameTime gameTime)
         {
             GraphicsDevice.Clear(Color.CornflowerBlue);

             spriteBatch.Begin();
             sprite.DrawAnimationSprite(spriteBatch);
             spriteBatch.End();

             base.Draw(gameTime);
         }
     }
}