Question

我正在开发一个简单的棋盘游戏，我的游戏板被表示为DrawableGameComponent。在板的更新方法中，我正在检查鼠标输入以确定单击板上的哪个字段。我遇到的问题是鼠标点击只能每5-6次点击一次注册。

鼠标点击代码是基本的：

public override void Update(GameTime gameTime)
    {
        MouseState mouseState = Mouse.GetState();
        Point mouseCell = new Point(-1, -1);

        if (mouseState.LeftButton == ButtonState.Pressed && previousMouseState.LeftButton == ButtonState.Released)
        {
            mouseCell = new Point(mouseState.X, mouseState.Y);
        }

        // cell calc ...

        previousMouseState = mouseState;

        base.Update(gameTime);
    }

在Game.cs中，我只是将我的电路板添加到Components集合中。

有谁知道我在这里可能会缺少什么？

编辑：实际上，它不只是鼠标，键盘输入也无法正常工作，所以我可能搞砸了DrawableGameComponent实现，但我不知道怎么做。

EDIT2：在这里找到一些人：http://forums.create.msdn.com/forums/p/23752/128804.aspx和这里：http://forums.create.msdn.com/forums/t/71524.aspx有非常相似的问题。调试失败后，我抛弃了DrawableGameComponent并实现了手动LoadContent / Update / Draw调用，并将所有输入收集到了game.cs.奇迹般有效。但是，如果有人有任何解释可能出错（看起来像DrawableGameComponent以某种方式克服了输入），我真的很想知道。

Answer 1

问题是，如果鼠标在MouseState mouseState = Mouse.GetState();和previousMouseState = mouseState;之间更改状态，则previousMouseState和mouseState将具有相同的值。

通过将它们移动到尽可能彼此靠近的线条，这几乎是不可能的。

public override void Update(GameTime gameTime)
{
    Point mouseCell = new Point(-1, -1); //moved this up, so that the mouseState and previousMouseState are as close to each other as possible.
    MouseState mouseState = Mouse.GetState();

    if (mouseState.LeftButton == ButtonState.Pressed && previousMouseState.LeftButton == ButtonState.Released)
    {
        mouseCell = new Point(mouseState.X, mouseState.Y);
    }
    //It is almost imposible, that the mouse has changed state before this point
    previousMouseState = mouseState; //The earliest place you can possibly place this line...

    // cell calc ...

    base.Update(gameTime);
}

XNA DrawableGameComponent鼠标输入问题

1 个答案: