扫雷游戏代码中的错误是什么

Question

import java.awt.Point;
import java.util.*;

public class Minesweeper {

    public static void main(String[] args) {
        Minesweeper minesweeper = new Minesweeper();
        minesweeper.randomX();
        minesweeper.game();
    }

    private static final int NR_OF_FIELDS = 81;
    private static final char EMPTY_SPACE = '.';
    char[][] minesweeper = new char[9][9];
    Random randNum = new Random();
    Scanner sc = new Scanner(System.in);
    static List<Point> points = new ArrayList<>();
    static List<Point> guess = new ArrayList<>();
    static Map<Point, Character> fields = init();

    public Minesweeper() {
        for (int i = 0; i < 9; i++) {
            for (int j = 0; j < 9; j++) {
                minesweeper[i][j] = '.';
            }
        }
    }

    boolean finished = false;

    public void game() {
        while (!finished) {
            System.out.print("Set/delete mines marks (y and x coordinates): ");
            int n = sc.nextInt();
            int m = sc.nextInt();
            int x = n - 1;
            int y = m - 1;

            if (n < 0 || n > 9 || m < 0 || m > 9) {
                System.out.println("Coordinates should be from 1 to 9!");
//set character '*'
            } else if (fields.get(new Point(x, y)) == '.' && (getCharAt(x, y) == "0" || getCharAt(x, y) == "X")) {
                fields.put(new Point(x, y), '*');
                guess.add(new Point(x, y));
                finished = checkIfFinished();
                printMinesweeper();
// delete character '*'               
 } else if (fields.get(new Point(x, y)) == '*') {
                    fields.put(new Point(x, y), '.');
                    guess.remove(new Point(x, y));
                    finished = checkIfFinished();
                    printMinesweeper();
            } else {
                System.out.println("There is a number here!");
            }
        }
        System.out.println("Congratulations! You found all mines!");
    }

    private static boolean checkIfFinished() {
        return points.equals(guess);
    }

    private static Map<Point, Character> init() {
        Map<Point, Character> fields = new HashMap<>(81);
        for (int i = 0; i < 9; i++) {
            for (int j = 0; j < 9; j++)
                fields.put(new Point(i, j), '.');
        }
        return fields;
    }

    public void printMinesweeper() {
        System.out.println(" " + "|" + "123456789" + "|");
        System.out.println("-" + "|" + "---------" + "|");
        for (int i = 0; i < 9; i++) {
            System.out.print(i + 1 + "|");
            for (int j = 0; j < 9; j++) {
                if (fields.get(new Point(i, j)) == '*') {
                    System.out.print(minesweeper[i][j] = fields.get(new Point(i, j)));
                    minesweeper[i][j] = 'X';
                } else if (minesweeper[i][j] == 'X') {
                    System.out.print('.');
                } else {
                    System.out.print(getCharAt(i, j));
                }
            }
            System.out.println("|");
        }
        System.out.println("-" + "|" + "---------" + "|");
    }

    private String getCharAt(int i, int j) {
        if (mineAt(i, j)) {
            return "X";
        }

        int minesNear = countMinesNear(i, j);
        if (minesNear == 0) {
            return ".";
        } else {
            return Integer.toString(minesNear);
        }
    }

    private boolean mineAt(int i, int j) {
        return minesweeper[i][j] == 'X';
    }

    private int countMinesNear(int i, int j) {
        int mines = 0;
        for (int x = -1; x <= 1; x++) {
            for (int y = -1; y <= 1; y++) {
                if (x + i >= 0 && x + i < minesweeper.length && y + j >= 0 && y + j < minesweeper.length) {
                    if (minesweeper[x + i][y + j] == 'X') {
                        mines++;
                    }
                }
            }
        }
        return mines;
    }

    public void randomX() {
        System.out.print("How many mines do you want on the field?: ");
        int numberOfMines = sc.nextInt();
        int i = 0;
        while (i < numberOfMines) {
            int x = randNum.nextInt(9);
            int y = randNum.nextInt(9);
            points.add(new Point(x, y));
            if (minesweeper[x][y] == '.') {
                minesweeper[x][y] = 'X';
                i++;
            }
        }
        printMinesweeper();
    }
}

早上好。简而言之，代码的作用。游戏开始时，系统会询问用户 System.out.print("How many mines do you want on the field?: ");。用户输入一个数字并随机生成二维数组 table 上的地雷。来自二维数组的平行点（x，y）被添加到 List<Point> points = new ArrayList<>(); points.add(new Point(x, y)); 所有这些做 public void randomX() 方法。打印 table public void printMinesweeper() 后。此方法打印一个二维数组table，隐藏地雷else if (minesweeper[i][j] == 'X') {System.out.print('.');}，可见数字，周围有多少地雷，通过方法else { System.out.print(getCharAt(i, j));}计算并打印。程序在 while 循环中到达方法 public void game() 并询问用户 System.out.print("Set/delete mines marks (y and x coordinates): "); 后。用户输入 2 个坐标。上面我声明了 static List<Point> guess = new ArrayList<>(); 和 static Map<Point, Character> fields = init() // is a map with 81 cells with keys Point and value '.'; 如果 (fields.get(new Point(x, y)) == '.' && (getCharAt(x, y) == "0" || getCharAt(x, y) == "X")) programm put in the fields map 则用户输入的坐标在 if-else statement 中验证此坐标处的字符“*”。同时，此坐标被添加到列表 guess 中。程序在游戏未完成时执行此操作。在我的代码中，如果游戏完成，如果通过方法 private static boolean checkIfFinished() {return points.equals(guess);} 进行检查，如果这是 true，则此答案转到布尔变量 finished，同时看到完成为真并显示 System.out.println("Congratulations! You found all mines!");

我的问题是：当我引入数量大于 3 的地雷时，即使我设置了所有地雷并且我知道 points.equals(guess) 游戏 return false 并且游戏继续。如何解决这个问题。

Answer 1

您需要修复 checkIfFinished()。在你目前的情况下，你还要检查你的分数顺序是否相同，否则你的游戏将无法完成。

private static boolean checkIfFinished() {
    if (points.size() != guess.size()) {
        return false;
    }
    for (Point point : guess) {
        if (!points.contains(point)) {
            return false;
        }
    }
    return true;
}

扫雷游戏代码中的错误是什么

Which is the mistake in the code for game Minesweeper

java

minesweeper