我正在尝试设置一个扫雷游戏但是我在携带新的＆＃39; v＆＃39; int进入板文件。下面列出了我已经完成的事情。我希望下面所说的内容有道理，最初的minesweeeper基础游戏代码可以在这里找到。
制作一个包含以下内容的Easy.java文件：
import java.util.Scanner;
public class Easy{
public static int b;
public static void setVariable(int s)
{
b = s;
}
public static int getVariable()
{
return b;
}
}
在Mines.java的顶部添加了一个公共静态int（在private final int FRAME_HEIGHT = 290;下）
使用Mines.java文件的public void run添加到main方法：
System.out.println("Please enter number for difficulty");
System.out.println("1: Easy 2: Medium 3: Hard");
Scanner kb = new Scanner(System.in);
int difficulty = kb.nextInt();
System.out.println("Difficulty set to: " + difficulty);
if(difficulty==1){
Easy.setVariable(40);
v = Easy.getVariable();
System.out.println(v);
System.out.println("Easy mode chosen");
}
我只是不确定如何链接Board.java文件以获取＆＃39; v＆＃39;的值。我试过了
int N_MINES = Mines.v;
然而，它没有看到我在上面的代码中设置的任何值，但是如果我将v设置为等于数字，则会看到这个。在前面的代码中，我做了＃34; System.out.println（v）;＆＃34;它打印出正确的变量，但Board.java没有看到这个数字。我该怎么办呢？
Board.java：
import java.awt.Graphics;
import java.awt.Image;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.util.Random;
import java.util.*;
import javax.swing.ImageIcon;
import javax.swing.JLabel;
import javax.swing.JPanel;
public class Board extends JPanel {
private final int NUM_IMAGES = 13;
private final int CELL_SIZE = 15;
private final int COVER_FOR_CELL = 10;
private final int MARK_FOR_CELL = 10;
private final int EMPTY_CELL = 0;
private final int MINE_CELL = 9;
private final int COVERED_MINE_CELL = MINE_CELL + COVER_FOR_CELL;
private final int MARKED_MINE_CELL = COVERED_MINE_CELL + MARK_FOR_CELL;
private final int DRAW_MINE = 9;
private final int DRAW_COVER = 10;
private final int DRAW_MARK = 11;
private final int DRAW_WRONG_MARK = 12;
int N_MINES = Mines.v;
private int N_ROWS = 16;
private int N_COLS = 16;
private int[] field;
private boolean inGame;
private int mines_left;
private Image[] img;
private int all_cells;
private JLabel statusbar;
public Board(JLabel statusbar) {
this.statusbar = statusbar;
img = new Image[NUM_IMAGES];
for (int i = 0; i < NUM_IMAGES; i++) {
img[i] = (new ImageIcon(i + ".png")).getImage();
}
setDoubleBuffered(true);
addMouseListener(new MinesAdapter());
newGame();
}
private void newGame() {
Random random;
int current_col;
int i = 0;
int position = 0;
int cell = 0;
/*
System.out.println("Please enter number for difficulty");
System.out.println("1: Easy 2: Medium 3: Hard");
Scanner kb = new Scanner(System.in);
int difficulty = kb.nextInt();
System.out.println("Difficulty set to: " + difficulty);
if(difficulty==1){
N_MINES=N_MINES*1;
System.out.println("Easy mode chosen");
}
if(difficulty==2){
N_MINES=N_MINES*2;
System.out.println("Medium mode chosen");
}
if(difficulty==3){
N_MINES=N_MINES*3;
System.out.println("Hard mode chosen");
}
*/
random = new Random();
inGame = true;
mines_left = N_MINES;
all_cells = N_ROWS * N_COLS;
field = new int[all_cells];
for (i = 0; i < all_cells; i++)
field[i] = COVER_FOR_CELL;
statusbar.setText(Integer.toString(mines_left));
i = 0;
while (i < N_MINES) {
position = (int) (all_cells * random.nextDouble());
if ((position < all_cells) &&
(field[position] != COVERED_MINE_CELL)) {
current_col = position % N_COLS;
field[position] = COVERED_MINE_CELL;
i++;
if (current_col > 0) {
cell = position - 1 - N_COLS;
if (cell >= 0)
if (field[cell] != COVERED_MINE_CELL)
field[cell] += 1;
cell = position - 1;
if (cell >= 0)
if (field[cell] != COVERED_MINE_CELL)
field[cell] += 1;
cell = position + N_COLS - 1;
if (cell < all_cells)
if (field[cell] != COVERED_MINE_CELL)
field[cell] += 1;
}
cell = position - N_COLS;
if (cell >= 0)
if (field[cell] != COVERED_MINE_CELL)
field[cell] += 1;
cell = position + N_COLS;
if (cell < all_cells)
if (field[cell] != COVERED_MINE_CELL)
field[cell] += 1;
if (current_col < (N_COLS - 1)) {
cell = position - N_COLS + 1;
if (cell >= 0)
if (field[cell] != COVERED_MINE_CELL)
field[cell] += 1;
cell = position + N_COLS + 1;
if (cell < all_cells)
if (field[cell] != COVERED_MINE_CELL)
field[cell] += 1;
cell = position + 1;
if (cell < all_cells)
if (field[cell] != COVERED_MINE_CELL)
field[cell] += 1;
}
}
}
}
public void find_empty_cells(int j) {
int current_col = j % N_COLS;
int cell;
if (current_col > 0) {
cell = j - N_COLS - 1;
if (cell >= 0)
if (field[cell] > MINE_CELL) {
field[cell] -= COVER_FOR_CELL;
if (field[cell] == EMPTY_CELL)
find_empty_cells(cell);
}
cell = j - 1;
if (cell >= 0)
if (field[cell] > MINE_CELL) {
field[cell] -= COVER_FOR_CELL;
if (field[cell] == EMPTY_CELL)
find_empty_cells(cell);
}
cell = j + N_COLS - 1;
if (cell < all_cells)
if (field[cell] > MINE_CELL) {
field[cell] -= COVER_FOR_CELL;
if (field[cell] == EMPTY_CELL)
find_empty_cells(cell);
}
}
cell = j - N_COLS;
if (cell >= 0)
if (field[cell] > MINE_CELL) {
field[cell] -= COVER_FOR_CELL;
if (field[cell] == EMPTY_CELL)
find_empty_cells(cell);
}
cell = j + N_COLS;
if (cell < all_cells)
if (field[cell] > MINE_CELL) {
field[cell] -= COVER_FOR_CELL;
if (field[cell] == EMPTY_CELL)
find_empty_cells(cell);
}
if (current_col < (N_COLS - 1)) {
cell = j - N_COLS + 1;
if (cell >= 0)
if (field[cell] > MINE_CELL) {
field[cell] -= COVER_FOR_CELL;
if (field[cell] == EMPTY_CELL)
find_empty_cells(cell);
}
cell = j + N_COLS + 1;
if (cell < all_cells)
if (field[cell] > MINE_CELL) {
field[cell] -= COVER_FOR_CELL;
if (field[cell] == EMPTY_CELL)
find_empty_cells(cell);
}
cell = j + 1;
if (cell < all_cells)
if (field[cell] > MINE_CELL) {
field[cell] -= COVER_FOR_CELL;
if (field[cell] == EMPTY_CELL)
find_empty_cells(cell);
}
}
}
@Override
public void paintComponent(Graphics g) {
int cell = 0;
int uncover = 0;
for (int i = 0; i < N_ROWS; i++) {
for (int j = 0; j < N_COLS; j++) {
cell = field[(i * N_COLS) + j];
if (inGame && cell == MINE_CELL)
inGame = false;
if (!inGame) {
if (cell == COVERED_MINE_CELL) {
cell = DRAW_MINE;
} else if (cell == MARKED_MINE_CELL) {
cell = DRAW_MARK;
} else if (cell > COVERED_MINE_CELL) {
cell = DRAW_WRONG_MARK;
} else if (cell > MINE_CELL) {
cell = DRAW_COVER;
}
} else {
if (cell > COVERED_MINE_CELL)
cell = DRAW_MARK;
else if (cell > MINE_CELL) {
cell = DRAW_COVER;
uncover++;
}
}
g.drawImage(img[cell], (j * CELL_SIZE),
(i * CELL_SIZE), this);
}
}
if (uncover == 0 && inGame) {
inGame = false;
statusbar.setText("Game won");
} else if (!inGame)
statusbar.setText("Game lost");
}
class MinesAdapter extends MouseAdapter {
@Override
public void mousePressed(MouseEvent e) {
int x = e.getX();
int y = e.getY();
int cCol = x / CELL_SIZE;
int cRow = y / CELL_SIZE;
boolean rep = false;
if (!inGame) {
newGame();
repaint();
}
if ((x < N_COLS * CELL_SIZE) && (y < N_ROWS * CELL_SIZE)) {
if (e.getButton() == MouseEvent.BUTTON3) {
if (field[(cRow * N_COLS) + cCol] > MINE_CELL) {
rep = true;
if (field[(cRow * N_COLS) + cCol] <= COVERED_MINE_CELL) {
if (mines_left > 0) {
field[(cRow * N_COLS) + cCol] += MARK_FOR_CELL;
mines_left--;
statusbar.setText(Integer.toString(mines_left));
} else
statusbar.setText("No marks left");
} else {
field[(cRow * N_COLS) + cCol] -= MARK_FOR_CELL;
mines_left++;
statusbar.setText(Integer.toString(mines_left));
}
}
} else {
if (field[(cRow * N_COLS) + cCol] > COVERED_MINE_CELL) {
return;
}
if ((field[(cRow * N_COLS) + cCol] > MINE_CELL) &&
(field[(cRow * N_COLS) + cCol] < MARKED_MINE_CELL)) {
field[(cRow * N_COLS) + cCol] -= COVER_FOR_CELL;
rep = true;
if (field[(cRow * N_COLS) + cCol] == MINE_CELL)
inGame = false;
if (field[(cRow * N_COLS) + cCol] == EMPTY_CELL)
find_empty_cells((cRow * N_COLS) + cCol);
}
}
if (rep)
repaint();
}
}
}
}
Mines.java：
import java.awt.BorderLayout;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.SwingUtilities;
import java.util.*;
public class Mines extends JFrame {
private final int FRAME_WIDTH = 250;
private final int FRAME_HEIGHT = 290;
public static int v;
private final JLabel statusbar;
public Mines() {
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setSize(FRAME_WIDTH, FRAME_HEIGHT);
setLocationRelativeTo(null);
setTitle("Minesweeper");
statusbar = new JLabel("");
add(statusbar, BorderLayout.SOUTH);
add(new Board(statusbar));
setResizable(false);
}
public static void main(String[] args) {
SwingUtilities.invokeLater(new Runnable() {
@Override
public void run() {
JFrame ex = new Mines();
ex.setVisible(true);
System.out.println("Please enter number for difficulty");
System.out.println("1: Easy 2: Medium 3: Hard");
Scanner kb = new Scanner(System.in);
int difficulty = kb.nextInt();
System.out.println("Difficulty set to: " + difficulty);
if(difficulty==1){
Easy.setVariable(40);
v = Easy.getVariable();
System.out.println(v);
System.out.println("Easy mode chosen");
}
if(difficulty==2){
//Medium.setVariable(80);
//v = Medium.getVariable();
//System.out.println(v);
System.out.println("Medium mode chosen");
//Medium.main(args);
}
if(difficulty==3){
Hard.main(args);
}
}
});
}
}
答案 0 :(得分：0)
编辑Board类的构造函数以接受地雷数量。
private int n_mines = 40; // default
public Board(int mines, JLabel statusbar) {
this.n_mines = mines;
this.statusbar = statusbar;
为更轻松的游戏制作new Board(20, new JLabel());