简单的扫雷代码，适合初学者

using UnityEngine;
using System.Collections;

public class Grid
{
    public int x;                   // 记录x坐标
    public int y;                // 记录y坐标
    public bool hasBoom;        // 是否有雷
    public int boomNumber;        // 周边雷数
    public bool opend = false;  // 是否打开
}

public class Boom : MonoBehaviour
{
    public int row = 10;    // 行数
    public int column = 10; // 列数
    private int size = 50;    // 格子大小
    private Grid[,] map;    // 格子数组
    private float minTime;  // 最佳时间
    private bool over = false; // 游戏是否结束

    void CreateMap ()
    {
        map = new Grid[row, column];    // 创建初始化数组
        for (int i = 0; i < row; i++) {
            for (int j = 0; j < column; j++) {
                map [i, j] = new Grid ();// 实例化格子
                map [i, j].x = i;       // 记录坐标
                map [i, j].y = j;

            }
        }
    }

    void ComputerNumber () // 遍历数组，查找每个格子周围雷的个数
    {
        for (int i = 0; i < row; i++) {
            for (int j = 0; j < column; j++) {
                map [i, j].boomNumber = CountBoom (i, j);
            }
        }
    }

    int CountBoom (int x, int y)  // 计算每个方格的周围雷数（九宫格形状，除去中心位置的）
    {
        int count = 0;
        for (int i = -1; i <= 1; i++) {
            for (int j = -1; j <= 1; j++) {
                if (!(i == 0 && j == 0)) {
                    int n = x + i;
                    int m = y + j;
                    if (n >= 0 && n < row && m >= 0 && m < column) { // 如果是雷，计数加1
                        if (map [n, m].hasBoom) {
                            count++;
                        }
                    }
                }
            }
        }
        return count;
    }

    void Open (int x, int y)  // 打开雷数为0的格子
    {
        map [x, y].opend = true;
        if (map [x, y].boomNumber == 0) {
            for (int i = -1; i <= 1; i++) {
                for (int j = -1; j <= 1; j++) {
                    if (!(i == 0 && j == 0)) {
                        int n = x + i;
                        int m = y + j;
                        if (n >= 0 && n < row && m >= 0 && m < column && map [n, m].opend == false) {
                            Open (n, m);
                            audio.Play ();  // 播放打开格子的音效
                        }
                    }
                }
            }
        }
    }

    void boomcount (int boomCount)  // 为地图中添加的雷数
    {
        for (int i = 0; i < boomCount; i++) {
            map [Random.Range (0, row), Random.Range (0, column)].hasBoom = true;
        }
    }

    void Start ()
    {
        CreateMap ();  // 初始化地图
    }

    void Update ()
    {
        int sum = 0;
        if (!over)
        for (int i = 0; i < 10; i++) {  // 遍历数组，计算已经打开的格子和雷数相加是否等于100
            for (int j = 0; j < 10; j++) {
                if (map [i, j].opend) {
                    sum = sum + 1;
                }
                if (map [i, j].hasBoom) {
                    sum = sum + 1;
                }
                if (sum == 100) {
                    over = true;
                    if ( Time.realtimeSinceStartup < PlayerPrefs.GetFloat("keepTime")  ) {
                    PlayerPrefs.SetFloat("keepTime",Time.realtimeSinceStartup);
                    minTime = PlayerPrefs.GetFloat("keepTime");
                    } else if (PlayerPrefs.GetFloat("keepTime") == 0) {
                        PlayerPrefs.SetFloat("keepTime",Time.realtimeSinceStartup);
                    }
                    Debug.Log ("You Win!!");
                    Debug.Log ("你用了" +  Time.realtimeSinceStartup.ToString ("0.00") + "秒!");
                }

            }
        }
    }

    void OnGUI ()
    {
        GUI.Button(new Rect(600,150,100,50),"最好成绩 " + PlayerPrefs.GetFloat("keepTime").ToString("0.00"));

        if (GUI.Button (new Rect (600, 0, 100, 50), "容易")) {

            boomcount (4);
            ComputerNumber (); // 遍历每个格子的雷数属性
        }

        if (GUI.Button (new Rect (600, 50, 100, 50), "简单")) {
            boomcount (6);
            ComputerNumber ();       

        }
        if (GUI.Button (new Rect (600, 100, 100, 50), "困难")) {
            boomcount (10);
            ComputerNumber ();        

        }

        for (int i = 0; i < row; i++) {
            for (int j = 0; j < column; j++) {
                // 显示出坐标和雷数
                string tip = map [i, j].x + "," + map [i, j].y + "\n";
                tip += map [i, j].boomNumber;

                // 有雷的显示为红色，没有雷的显示为黄色
                if (map [i, j].hasBoom) {
                    GUI.backgroundColor = Color.red;

                } else {
                    GUI.backgroundColor = Color.yellow;
                }

                if (map [i, j].opend) {
                    GUI.Box (new Rect (j * size, i * size, size, size), tip);
                } else if (GUI.Button (new Rect (j * size, i * size, size, size), tip)) {

                    if (map [i, j].hasBoom) {
                        // 当鼠标悬停在按钮上的时候，字体蓝色高亮
                        GUI.skin.button.hover.textColor = Color.blue;
                        print ("Over!");

                    } else {
                        Open (i, j);
                    }
                }
            }
        }

    }

}