从列表中绘制矩形

Question

我正在尝试在我的地图上创建一些基本的矩形。

这是我的 MapBounderies class:

public int boundY, boundX, boundWidth, boundLength;
    public Texture2D rectTexture;
    public Rectangle boundRectangle;

    List<MapBounderies> boundsList = new List<MapBounderies>();

    public MapBounderies(Rectangle bRectangle, int intX, int intY, int intWidth, int intLength)
    {
        boundY = intY;
        boundX = intX;
        boundWidth = intWidth;
        boundLength = intLength;
    }

    public void Load(ContentManager Content)
    {
        rectTexture = Content.Load<Texture2D>("black colour");
    }

    public void AddToList(SpriteBatch spriteBatch)
    {
        boundsList.Add(new MapBounderies(new Rectangle(), 100, 100, 100, 100));
    }

    public void Draw(SpriteBatch spriteBatch)
    {
        foreach (MapBounderies boundries in boundsList)
        {
            spriteBatch.Draw(rectTexture, new Rectangle(boundries.boundX, boundries.boundY, boundries.boundWidth, boundries.boundLength), Color.White);
        }
    }

这是我在尝试创建新游戏时在主游戏代码中遇到的错误 "MapBounderies":

MapBounderies mapBounderies = new MapBounderies();

没有给定的参数对应于 'MapBounderies.MapBounderies(Rectangle, int, int, int, int)'

的所需形式参数 'bRectangle'

我是 xna 的新手，如有任何帮助，我们将不胜感激。

Answer 1

And this is the error I am getting in my main game code when I try to create a new "MapBounderies"

There is no argument given that corresponds to the required formal parameter 'bRectangle' of 'MapBounderies.MapBounderies(Rectangle, int, int, int, int)'

出现此错误的原因是您没有默认构造函数，您提供的代码的唯一签名是：

 public MapBounderies(Rectangle bRectangle, int intX, int intY, int intWidth, int intLength)

如您所见，它有 5 个参数，并且您没有另一个为空的参数。所以要修复，只需创建另一个没有参数的构造函数。

 public MapBoundaries(){}

现在您可以创建一个不带任何参数的 MapBoundaries 实例。

 MapBounderies mapBounderies = new MapBounderies();

从列表中绘制矩形

Drawing Rectangles from a List

c#

xna

monogame