C#小游戏—钢铁侠VS太空侵略者

 private void FireBullet(object sender, EventArgs e)

{

    foreach (Control c in this.Controls)

    {

        if (c is PictureBox && c.Name == "Bullet")

        {

            PictureBox bullet = (PictureBox)c;

            bullet.Top -= 5;




            if (bullet.Location.Y <= 0)

            {

                this.Controls.Remove(bullet); 

            }




            foreach(Control ct in this.Controls)

            {

                if (ct is PictureBox && ct.Name == "Laser")

                {

                    PictureBox laser = (PictureBox)ct;




                    if (bullet.Bounds.IntersectsWith(laser.Bounds))

                    {

                        this.Controls.Remove(bullet);

                        this.Controls.Remove(laser);

                        pts++;

                        Score(pts);

                    }

                }

            }




            foreach(Control ctrl in this.Controls)

            {

                if (ctrl is PictureBox && ctrl.Name == "Alien")

                {

                    PictureBox alien = (PictureBox)ctrl;




                    if (bullet.Bounds.IntersectsWith(alien.Bounds) && !Touched(alien))

                    {

                        this.Controls.Remove(bullet);

                        this.Controls.Remove(alien);

                        aliens.Remove(alien);

                        pts += 5;

                        Score(pts);

                        CheckForWinner();

                    }

                    else if (bullet.Bounds.IntersectsWith(alien.Bounds) && Touched(alien))

                    {

                        this.Controls.Remove(bullet);

                        this.Controls.Remove(alien);

                        delay.Add(alien);

                        pts += 5;

                        Score(pts);

                        CheckForWinner();

                    }

                }

            }

        }

    }

}