只能从一个位置射击

Question

我正在制作一款2D游戏作为学校项目(只有初学者代码，没有花哨的东西)。

我的角色应该从自己的位置拍摄。

它只能在构造时从玩家那里获得位置，因此它只能从玩家开始的位置射击。

下面是一些我发现相关的代码:

class ShootManager
{
    int shotsShooten = 0;
    List<Shot> shots = new List<Shot>();
    public void FireShot()
    {
        shots.Add(new Shot());
        shotsShooten++;
    }
    public void Update(GameTime gameTime, KeyboardState KbState)
    {
        if (KbState.IsKeyDown(Keys.Space))
        { FireShot(); }
        foreach (Shot shot in shots)
        {
            if (shot.Position.X == (float)shot.ISoutOfGame) //if the shot is out of the screen
                shots.Remove(shots[shots.Count - 1]); //Removes the last item
            shot.Position.X--;
        }
    }
}

class Shot
{
    public Vector2 Position;
    public int ISoutOfGame = -50;
    public Shot(Vector2 position)
    {
        Position = position;
    }
}

是否有办法绕过在玩家起始位置构建每个镜头，而不是在玩家当前位置创建它?

Answer 1

这里有一些简单的例子，如何做到这一点，它是在VB代码从头部和未测试。

Public Class Bullet
    Position as Vector2
    Velocity as Vector2
    Active as boolean = false
End Class
Public Class Bullets
    inherit list(of Bullet)
    // public sub Init(Position, Velocity, Type, Acting, Speed, Size..... )
    public Sub Init(Position, Velocity)
        dim new Bullet as Bullet
        Bullet.Position = Position
        Bullet.Velocity = Velocity
        Bullet.Active = true
        add(Bullet)
    end Sub
    public Sub Update()
        for each b as bullet in me.findall(function(c) c.active)
            b.position += b.velocity
            // if b.position outside screen then b.active = false
            // also on collision set active to false
        next
        me.removeall(function(c) not(c.active))
    end sub
    public Sub Draw()
        for each b as bullet in me.findall(function(c) c.active)
            // draw bullets
        next
    end Sub
End Class