C# - 2d 矩阵 - 猜测点的左/右/上/下

Question

使用实现并放置在表单上的二维按钮数组。

Button[,] tmpButton = new Button[x, y];
private void DrawGrid()
{
     int ButtonWidth = 48;
     int ButtonHeight = 48;
     int start_x = 88;
     int start_y = 200;

     for (int i = 0; i < x; i++)
     {
         for (int j = 0; j < y; j++)
         {
             tmpButton[i, j] = new Button();
             tmpButton[i, j].Top = start_x + (i * ButtonHeight);
             tmpButton[i, j].Left = start_y + (j * ButtonWidth);
             tmpButton[i, j].Width = ButtonWidth;
             tmpButton[i, j].Height = ButtonHeight;
             tmpButton[i, j].Click += new EventHandler(BTN_Grid_Click);
             this.Controls.Add(tmpButton[i, j]);
         }
     }
}

如果在网格内设置了一个随机位置 (x,y) true 以猜测（通过单击周围的网格按钮）它的位置。如果位置是!true，它应该返回left right up down 指向我们之前设置的随机位置。如果true 位置在左上角，它也应该返回最接近的位置。

实现这样的事情的最佳方式是什么？

这已经接近了，但我看不到的东西有点偏离了......

public String GetDirection()
{
    int xd = Guess.X - Clue.X;
    int yd = Guess.Y - Clue.Y;

    if(Math.Abs(xd) <= Math.Abs(yd))
        return (xd <= 0) ? "Left" : "Right";
    else
        return (yd <= 0) ? "Down" : "Up";
}

这是正在发生的事情的直观表示......

Answer 1

好的，所以你大部分都是对的，但是你犯了一个简单的错误。当您创建按钮时，您将从左到右然后从上到下进行渲染，这会将高度创建为 x 位置，然后将宽度创建为 y 位置。因此，当您将猜测与正确的位置相关联时，您会忘记这样做并假设 x 是宽度。

这是我解决此问题的实现：

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace UpDownLeftRight {

    public partial class Form1 : Form {

        public Form1() {
            InitializeComponent();
            this.Load += new System.EventHandler(this.Form1_Load);
        }

        public int[] winner = new int[2];
        public Button[,] tmpButton = new Button[10, 10];
        private void Form1_Load(object sender, EventArgs e) {
            Random r = new Random();
            int ButtonWidth = 48;
            int ButtonHeight = 48;
            int start_x = 0;
            int start_y = 0;
            winner = new int[] { r.Next(0, 10), r.Next(0, 10) };
            this.Size = new Size((ButtonWidth * 11), (ButtonHeight * 11));
            for (int i = 0; i < 10; i++) {
                for (int j = 0; j < 10; j++) {
                    tmpButton[i, j] = new Button();
                    tmpButton[i, j].Left = start_x + (i * ButtonWidth);
                    tmpButton[i, j].Top = start_y + (j * ButtonHeight);
                    tmpButton[i, j].Width = ButtonWidth;
                    tmpButton[i, j].Height = ButtonHeight;
                    tmpButton[i, j].Font = new Font(FontFamily.GenericMonospace, 17);
                    tmpButton[i, j].Click += new EventHandler(BTN_Grid_Click);
                    this.Controls.Add(tmpButton[i, j]);
                }
            }
        }

        public void BTN_Grid_Click(object o, EventArgs e) {
            int[] guess = new int[2];
            for (int i = 0; i != tmpButton.GetLength(1); i++) {
                for (int j = 0; j != tmpButton.GetLength(0); j++) {
                    if (tmpButton[i, j] == o) {
                        guess = new int[] { i, j };
                    }
                }
            }
            int xDist = guess[0] - winner[0];
            int yDist = guess[1] - winner[1];
            string possible = "˂˃˄˅";
            if (xDist > 0) { possible = possible.Replace("˃", ""); }
            if (xDist < 0) { possible = possible.Replace("˂", ""); }
            if (xDist == 0) { possible = possible.Replace("˂", ""); possible = possible.Replace("˃", ""); }
            if (yDist > 0) { possible = possible.Replace("˅", ""); }
            if (yDist < 0) { possible = possible.Replace("˄", ""); }
            if (yDist == 0) { possible = possible.Replace("˄", ""); possible = possible.Replace("˅", ""); }
            ((Button)o).Text = possible;
        }
    }
}