如何使 XNA 应用程序重新加载自身

本文关键字：加载 新加载 何使 XNA 应用程序 | 更新日期: 2024-10-25 03:53:28

我试图在按下按钮 F 的那一刻让游戏全屏运行，但它不起作用，我在想，因为它必须首先重新加载应用程序才能生效，那么我该怎么做？

法典：

public Game1()
{
    graphics = new GraphicsDeviceManager(this);
    Content.RootDirectory = "Content";
    IsMouseVisible = true;
    graphics.PreferredBackBufferWidth = WINDOW_WIDTH;
    graphics.PreferredBackBufferHeight = WINDOW_HEIGHT;
}
protected override void Update(GameTime gameTime)
{
    // Allows the game to exit
    if (GamePad.GetState(PlayerIndex.One).Buttons.Back == ButtonState.Pressed)
        this.Exit();
    if (keyboard.IsKeyDown(Keys.F))
    {
        WINDOW_WIDTH = 1280;
        WINDOW_HEIGHT = 720;              
    }
    base.Update(gameTime);
}

如何使 XNA 应用程序重新加载自身

我做了一些简单的研究（谷歌搜索了"XNA 4 切换全屏"），发现有一个 ToggleFullScreen 方法：http://msdn.microsoft.com/en-us/library/microsoft.xna.framework.graphicsdevicemanager.togglefullscreen.aspx

我还应用了我之前在评论中提到的修复程序，以避免每帧切换全屏

public KeyboardState PreviousKeyboardState = Keyboard.GetState();
public Boolean FullscreenMode = false;
public Vector2 WindowedResolution = new Vector2(800,600);
public Vector2 FullscreenResolution = new Vector2(1280, 720);
public void UpdateDisplayMode(bool fullscreen, Vector2 resolution)
{
    graphics.PreferredBackBufferWidth = (int)resolution.X;
    graphics.PreferredBackBufferHeight = (int)resolution.Y;
    graphics.IsFullScreen = fullscreen;
    graphics.ApplyChanges();
}
public Game1()
{
    graphics = new GraphicsDeviceManager(this);
    Content.RootDirectory = "Content";
    IsMouseVisible = true;
    UpdateDisplayMode(FullscreenMode);
}
protected override void Update(GameTime gameTime)
{
    // Allows the game to exit
    if (GamePad.GetState(PlayerIndex.One).Buttons.Back == ButtonState.Pressed)
        this.Exit();
    var keyboardState = Keyboard.GetState();

    if (keyboardState.IsKeyDown(Keys.F) && PreviousKeyboardState.IsKeyUp(Keys.F))
    {
        if (FullscreenMode)
            UpdateDisplayMode(false, WindowedResolution);
        else
            UpdateDisplayMode(true, FullscreenResolution);
    }
    PreviousKeyboardState = keyboardState;
    base.Update(gameTime);
}

它不更新的原因是，当您按"F"键时，您只需将变量设置为全屏大小。为了实际调整窗口大小，您必须执行与构造函数中相同的操作：

graphics.PreferredBackBufferWidth = WINDOW_WIDTH;
graphics.PreferredBackBufferHeight = WINDOW_HEIGHT;

除此之外，您可能还需要设置graphics.IsFullScreen = true;

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