public override void Update(GameTime theTime)
        {
            if (Keyboard.GetState().IsKeyDown(Keys.P) || Keyboard.GetState().IsKeyDown(Keys.Escape))
            {
                ScreenEvent.Invoke(this, new EventArgs());
                return;
            }

            if (Keyboard.GetState().IsKeyDown(Keys.Space))
            {
                if (isGameOver == true)
                {
                    StartGame();
                }
            }


            if (!isGameOver)
            {
                foreach (Heli heli in textureAtlases.helis)
                {
                    if (heli.isLive)
                    {
                        heli.Update(theTime);
                        if (plane.Location.Intersects(heli.Location))
                        {
                            isGameOver = true;
                        }
                    }
                }

                foreach (Ship ship in textureAtlases.ships)
                {
                    if (ship.isLive)
                    {
                        ship.Update(theTime);
                        if (plane.Location.Intersects(ship.Location))
                        {
                            isGameOver = true;
                        }
                    }
                }

                foreach (Fuel fuel in textureAtlases.fuels)
                {
                    if (fuel.isLive)
                    {
                        fuel.Update(theTime);
                        if (plane.Location.Intersects(fuel.Location))
                        {
                            fuel.isLive = false;
                            if (plane.Fuel + 20 >= 100)
                            {
                                plane.Fuel = 100;
                            }
                            else
                            {
                                plane.Fuel += 20;
                            }
                        }
                    }
                }

                foreach (Bullet bullet in plane.bullets)
                {
                    bullet.Update(theTime);
                    foreach (Heli heli in textureAtlases.helis)
                    {
                        if (heli.isLive && !bullet.isRemoved && bullet.Location.Intersects(heli.Location))
                        {
                            heli.isLive      = false;
                            bullet.isRemoved = true;
                        }
                    }
                    foreach (Ship ship in textureAtlases.ships)
                    {
                        if (ship.isLive && !bullet.isRemoved && bullet.Location.Intersects(ship.Location))
                        {
                            ship.isLive      = false;
                            bullet.isRemoved = true;
                        }
                    }
                    foreach (Fuel fuel in textureAtlases.fuels)
                    {
                        if (fuel.isLive && !bullet.isRemoved && bullet.Location.Intersects(fuel.Location))
                        {
                            fuel.isLive      = false;
                            bullet.isRemoved = true;
                        }
                    }
                }


                plane.Update(theTime);

                foreach (Map map in textureAtlases.Maps)
                {
                    map.Update();
                    //Console.WriteLine(textureAtlases.Maps[0,0].Location);
                    //Console.WriteLine(plane.Location);
                    if (map.Location.Y <= 720 - map.Location.Height && map.Location.Y >= 720 - 2 * map.Location.Height)
                    {
                        if (IntersectsPixel(plane.Location, plane.TextureData, map.Location, map.TextureData))
                        {
                            isGameOver = true;
                        }
                    }
                }
            }
        }
        public override void Update(GameTime theTime)
        {
            if (Keyboard.GetState().IsKeyDown(Keys.P) || Keyboard.GetState().IsKeyDown(Keys.Escape))
            {
                ScreenEvent.Invoke(this, new EventArgs());
                return;
            }

            if (Keyboard.GetState().IsKeyDown(Keys.Space))
            {
                if (isGameOver == true)
                {
                    StartGame();
                }
            }


            if (!isGameOver)
            {
                //foreach (Heli heli in textureAtlases.helis)
                //{
                //    if (heli.isLive)
                //    {
                //        heli.Update(theTime);
                //        if (plane.Location.Intersects(heli.Location))
                //            isGameOver = true;
                //    }
                //}

                //foreach (Ship ship in textureAtlases.ships)
                //{
                //    if (ship.isLive)
                //    {
                //        ship.Update(theTime);
                //        if (plane.Location.Intersects(ship.Location))
                //            isGameOver = true;
                //    }
                //}

                //foreach (Fuel fuel in textureAtlases.fuels)
                //{
                //    if (fuel.isLive)
                //    {
                //        fuel.Update(theTime);
                //        if (plane.Location.Intersects(fuel.Location))
                //        {
                //            fuel.isLive = false;
                //            if (plane.Fuel + 20 >= 100)
                //                plane.Fuel = 100;
                //            else
                //                plane.Fuel += 20;
                //        }
                //    }
                //}

                //foreach (Bullet bullet in plane.bullets)
                //{
                //    bullet.Update(theTime);
                //    foreach (Heli heli in textureAtlases.helis)
                //    {
                //        if (heli.isLive && !bullet.isRemoved && bullet.Location.Intersects(heli.Location))
                //        {
                //            heli.isLive = false;
                //            bullet.isRemoved = true;
                //        }
                //    }
                //    foreach (Ship ship in textureAtlases.ships)
                //    {
                //        if (ship.isLive && !bullet.isRemoved && bullet.Location.Intersects(ship.Location))
                //        {
                //            ship.isLive = false;
                //            bullet.isRemoved = true;
                //        }
                //    }
                //    foreach (Fuel fuel in textureAtlases.fuels)
                //    {
                //        if (fuel.isLive && !bullet.isRemoved && bullet.Location.Intersects(fuel.Location))
                //        {
                //            fuel.isLive = false;
                //            bullet.isRemoved = true;
                //        }
                //    }
                //}


                plane.Update(theTime);

                foreach (Map map in textureAtlases.Maps)
                {
                    map.Update();
                }
            }
        }