Time for action – drawing the tile map

1. Add the Draw() method to the TileMap class:

   #region Drawing
   static public void Draw(SpriteBatch spriteBatch)
   {
       int startX = GetSquareByPixelX((int)Camera.Position.X);
       int endX = GetSquareByPixelX((int)Camera.Position.X +
             Camera.ViewPortWidth);
   
       int startY = GetSquareByPixelY((int)Camera.Position.Y);
       int endY = GetSquareByPixelY((int)Camera.Position.Y +
                 Camera.ViewPortHeight);
   
       for (int x = startX; x <= endX; x++)
           for (int y = startY; y <= endY; y++) 
           {
               if ((x >= 0) && (y >= 0) && 
                   (x < MapWidth) && (y < MapHeight))
               {
                   spriteBatch.Draw(
                       texture,
                       SquareScreenRectangle(x, y),
                       tiles[GetTileAtSquare(x,y)],
                       Color.White);
               }
           }
   }
   #endregion

2. In the LoadContent() method of the Game1.cs file, initialize the TileMap...