C#小游戏—钢铁侠VS太空侵略者

　　身为漫威迷，最近又把《钢铁侠》和《复仇者联盟》系列又重温了一遍，真的是印证了那句话：“读书百遍，其意自现”。看电影一个道理，每看一遍，都有不懂的感受~ 不知道大伙是不是也有同样的感受，对于好的电影，真的是回味无穷！

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本篇博文也是因《复仇者联盟1》的启发，C#语言实现的一个小游戏，所以游戏命名就叫“钢铁侠VS太空侵略者》了！

先上一个游戏原型图：

　

　　Talk is Cheap，Show me the Code!

代码方面没有太难的操作，主要依赖于Timer控件：

　　

　　

　分别用来监控游戏中Iron man 子弹移动，侵略者左右移动，往下移动，侵略者子弹移动，子弹碰撞，以及观察者监控（主要校验生命值），具体代码如下：

侵略者界面生成：

private void CreateControl(Form p)
{
    PictureBox pb = new PictureBox();
    pb.Location = new Point(x, y);
    pb.Size = new Size(width, height);
    pb.BackgroundImage = Properties.Resources.invader;
    pb.BackgroundImageLayout = ImageLayout.Stretch;
    pb.Name = "Alien";
    p.Controls.Add(pb);
}
public void CreateSprites(Form p)
{
    for(int i = ; i < rows; i++)
    {
        for(int j = ; j < columns; j++)
        {
            CreateControl(p);
            x += width + space;
        }
        y += height + space;
        x = ;
    }
}

　　 键盘事件绑定：

private void Pressed(object sender, KeyEventArgs e)
{
    if (e.KeyCode == Keys.A || e.KeyCode == Keys.Left)
    {
        moveLeft = true;
    }
    else if (e.KeyCode == Keys.D || e.KeyCode == Keys.Right)
    {
        moveRight = true;
    }
    else if (e.KeyCode == Keys.Space && game && !fired)
    {
        Missile();
        fired = true;
    }
}
private void Released(object sender, KeyEventArgs e)
{
    if (e.KeyCode == Keys.A || e.KeyCode == Keys.Left)
    {
        moveLeft = false;
    }
    else if (e.KeyCode == Keys.D || e.KeyCode == Keys.Right)
    {
        moveRight = false;
    }
    else if (e.KeyCode == Keys.Space)
    {
        fired = false;
    }
}

　　Iron man 左右移动：

private void PlayerMove(object sender, EventArgs e)
  {
      if (moveLeft && Player.Location.X >= )
      {
          Player.Left--;
      }
      else if (moveRight && Player.Location.X <= limit)
      {
          Player.Left++;
      }
  }

　　子弹发射：

 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 -= ;

            if (bullet.Location.Y <= )
            {
                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 += ;
                        Score(pts);
                        CheckForWinner();
                    }
                    else if (bullet.Bounds.IntersectsWith(alien.Bounds) && Touched(alien))
                    {
                        this.Controls.Remove(bullet);
                        this.Controls.Remove(alien);
                        delay.Add(alien);
                        pts += ;
                        Score(pts);
                        CheckForWinner();
                    }
                }
            }
        }
    }
}

　　  子弹

private void Missile()
{
    PictureBox bullet = new PictureBox();
    bullet.Location = new Point(Player.Location.X +
    Player.Width / , Player.Location.Y - );
    bullet.Size = new Size(, );
    bullet.BackgroundImage = Properties.Resources.bullet;
    bullet.BackgroundImageLayout = ImageLayout.Stretch;
    bullet.Name = "Bullet";
    this.Controls.Add(bullet);
}

　　 侵略者移动：

private void AlienMove()
{
    foreach(PictureBox alien in aliens)
    {
        alien.Location = new Point(alien.Location.X + left,
        alien.Location.Y + top);
        SetDirection(alien);
        Collided(alien);
    }
}
private void Collided(PictureBox a)
{
    if (a.Bounds.IntersectsWith(Player.Bounds))
    {
        gameOver();
    }
}

　　 子弹移动效果：

 private void Beam(PictureBox a)
{
    PictureBox laser = new PictureBox();
    laser.Location = new Point(a.Location.X + a.Width / ,
     a.Location.Y + );
    laser.Size = new Size(, );
    laser.BackgroundImage = Properties.Resources.laser;
    laser.BackgroundImageLayout = ImageLayout.Stretch;
    laser.Name = "Laser";
    this.Controls.Add(laser);
}
private void StrikeSpan(object sender, EventArgs e)
{
    Random r = new Random();
    int pick;

    if (aliens.Count > )
    {
        pick = r.Next(aliens.Count);
        Beam(aliens[pick]);
    }
}
private void DetectLaser(object sender, EventArgs e)
{
    foreach(Control c in this.Controls)
    {
        if (c is PictureBox && c.Name == "Laser")
        {
            PictureBox laser = (PictureBox)c;
            laser.Top += ;

            if (laser.Location.Y >= limit)
            {
                this.Controls.Remove(laser);
            }
            if (laser.Bounds.IntersectsWith(Player.Bounds))
            {
                this.Controls.Remove(laser);
                LoseLife();
            }
        }
    }
}

　　主要核心代码如上，下面看下运行效果图：

　　 何以解忧唯有撸码，欢迎有兴趣的朋友，联系我一起探讨。

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