Mouse.SetPosition() 赋值变量被视为无效

本文关键字：无效 变量 赋值 SetPosition Mouse | 更新日期: 2023-09-27 18:34:25

我正在尝试将鼠标位置设置为等于变量"位置"，但收到错误"无法将类型'void'隐式转换为'Microsoft.Xna.Framework.Input.MouseState"。据我所知，"位置"并非无效。这是代码，由于试图使这项工作有点混乱：

class Player
{
    private Texture2D texture;
    private static int textureSize = 20;
    private static int screenWidth = Game1.Instance.GraphicsDevice.Viewport.Width;
    private static int screenHeight = Game1.Instance.GraphicsDevice.Viewport.Height;
    private static int halfTexture = (int)(textureSize * (screenHeight / (double)textureSize)) / 2;
    private Vector2 location;
    private Rectangle destination;
    private float speed;
    private MouseState mouse;
    public Player(Texture2D texture)
    {
        this.texture = texture;
        this.location = new Vector2(screenWidth / 2 - halfTexture, screenHeight * 3 / 4 - halfTexture);
        this.destination = new Rectangle((int)location.X, (int)location.Y, textureSize, textureSize);
        this.mouse = Mouse.SetPosition((int)location.X, (int)location.Y); // the error is here
    }

那么这是怎么回事，我该如何解决呢？

Mouse.SetPosition() 赋值变量被视为无效

如果不查看 XNA 文档，我仍然可以肯定地说 Mouse.SetPosition -方法 返回void，并且您正在尝试将其返回值分配给类型 MouseState 的this.mouse。删除该作业，您将没事的。

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