Question

我正在使用C＃和MonoGame制作游戏，需要检测何时按下特定键。我创建了一个控制器类，它按照以下方式检测换档键按下（使玩家射击子弹的按钮）。

public class Controller
{
    KeyboardState keyboardState;

    public Controller()
    {
    }

    public void Update()
    {
        keyboardState = Keyboard.GetState(); //Get a new controller state
    }

    public bool RightShootButton
    {
        get
        {
            return keyboardState.IsKeyDown(Keys.RightShift); //Shoot a bullet to the right if right shift is pressed
        }
    }

    public bool LeftShootButton
    {
        get
        {
            return keyboardState.IsKeyDown(Keys.LeftShift); //Shoot a bullet to the left if left shift is pressed
        }
    }
}

RightShootButton属性工作正常，但LeftShootButton有一个奇怪的故障。当按下任何箭头键（向上，向下，向左或向右）时，玩家向左射击子弹，即使我没有要求按键。 KeyboardState是否有可能错误地检测到按键，或者我的代码中是否存在我错过的错误？如果是前者，有什么方法可以解决这个问题吗？

编辑：

这里有一些代码来展示工作原理。子弹是在Player类中这样创建的。这是创建项目符号的唯一代码部分（它们被添加到列表中）。

if (controller.RightShootButton)
{
    level.Bullets.Add(new Bullet(playerPosition, true)); //These parameters define where the bullet is and whether it travels left or right
}
else if (controller.LeftShootButton)
{
    level.Bullets.Add(new Bullet(playerPosition, false));
}

玩家使用此代码左右移动。同样，这是涉及移动的代码的唯一部分。

if (controller.RightButton || controller.LeftButton)
{
    if (controller.RightButton && playerPosition.X < level.End)
    {
        playerPosition.X += 2; //Move right if the player hasn't reached the side of the screen (the level.End value)
    }

    if (controller.LeftButton && playerPosition.X > 0)
    {
        playerPosition.X -= 2; //Move left if not at the side of the screen
    }
}

最后，这些是检测控制器类中箭头键按下的属性。这些目前有游戏手柄功能，但拍摄属性没有。

public bool UpButton
{
    get
    {
        return keyboardState.IsKeyDown(Keys.Up) || gamepadState.DPad.Up == ButtonState.Pressed || gamepadState.ThumbSticks.Left.Y > 0.0f;
    }
}

public bool DownButton
{
    get
    {
        return keyboardState.IsKeyDown(Keys.Down) || gamepadState.DPad.Down == ButtonState.Pressed || gamepadState.ThumbSticks.Left.Y < 0.0f;
    }
}

public bool LeftButton
{
    get
    {
        return keyboardState.IsKeyDown(Keys.Left) || gamepadState.DPad.Left == ButtonState.Pressed || gamepadState.ThumbSticks.Left.X < 0.0f;
    }
}

public bool RightButton
{
    get
    {
        return keyboardState.IsKeyDown(Keys.Right) || gamepadState.DPad.Right == ButtonState.Pressed || gamepadState.ThumbSticks.Left.X > 0.0f;
    }
}

KeyboardState能否检测到错误的密钥？

0 个答案: