我正在创建一个蛇梯游戏。我的问题是我有两个类，一个是 JFrame 中用于游戏的主 GUI，带有蛇和梯子板的图像，另一个是我想叠加在棋盘游戏上的网格的 2D 数组，因此图像中的正方形与网格的正方形相匹配。
我认为我需要将其称为 Grid 类的实例，但我似乎无法让它工作(或者可能放置在正确的位置!)。有人可以帮助我吗？
提前致谢
GameBoard 类:
public class GameBoard extends javax.swing.JFrame {
private JLabel Board;
private JLabel playerNumber;
private ButtonGroup group;
private JButton startButton;
private JRadioButton fourPlayer;
private JRadioButton threePlayer;
private JRadioButton twoPlayer;
/**
* Auto-generated main method to display this JFrame
*/
public static void main(String[] args) {
SwingUtilities.invokeLater(new Runnable() {
public void run() {
GameBoard inst = new GameBoard();
inst.setLocationRelativeTo(null);
inst.setVisible(true);
}
});
}
public GameBoard() {
super();
initGUI();
}
private void initGUI() {
try {
setDefaultCloseOperation(WindowConstants.DISPOSE_ON_CLOSE);
getContentPane().setLayout(null);
{
Board = new JLabel();
getContentPane().add(Board);
Board.setText("jLabel1");
Board.setIcon(new ImageIcon(getClass().getClassLoader().getResource("images/board.jpg")));
Board.setBounds(199, 0, 742, 484);
}
{
playerNumber = new JLabel();
getContentPane().add(playerNumber);
playerNumber.setText("Number of Players");
playerNumber.setBounds(40, 22, 117, 27);
}
{
twoPlayer = new JRadioButton();
getContentPane().add(twoPlayer);
twoPlayer.setText("Two Player");
twoPlayer.setBounds(40, 55, 93, 20);
}
{
threePlayer = new JRadioButton();
getContentPane().add(threePlayer);
threePlayer.setText("Three Players");
threePlayer.setBounds(40, 76, 88, 20);
}
{
fourPlayer = new JRadioButton();
getContentPane().add(fourPlayer);
fourPlayer.setText("Four Players");
fourPlayer.setBounds(40, 99, 82, 20);
}
{
startButton = new JButton();
getContentPane().add(startButton);
startButton.setText("Start Game");
startButton.setBounds(43, 136, 83, 23);
}
{
//Group the radio buttons.
ButtonGroup group = new ButtonGroup();
group.add(twoPlayer);
group.add(threePlayer);
group.add(fourPlayer);
}
pack();
this.setSize(963, 523);
} catch (Exception e) {
//add your error handling code here
e.printStackTrace();
}
}
}
;
网格类:
public class Grid {
int[][] multi = {
{0,0,-1,0,0,-1,0,-1,0,0},
{0,0,0,0,0,0,-1,0,0,0},
{0,0,0,0,0,0,0,0,0,1},
{0,-1,0,-1,0,0,0,0,0,0},
{0,0,0,0,0,0,-1,0,0,1},
{0,0,0,0,0,0,0,0,0,0},
{0,0,0,0,0,0,0,0,0,0},
{1,0,0,0,0,0,0,1,0,0},
{0,0,0,-1,0,0,0,0,0,0},
{0,0,0,1,0,0,0,0,1,0}
};
}
最佳答案
我猜测 GameBoard 需要一个实例 Grid 才能知道将游戏 block 放置在哪里。
您可以更改 GameBoard，以便它需要将 Grid 实例传递给它...
public class GameBoard extends javax.swing.JFrame {
//...
private Grid grid;
public GameBoard(Grid grid) {
this.grid = grid;
//...
然后在创建 GameBoard 实例时创建并传递 Grid 实例...
public static void main(String[] args) {
SwingUtilities.invokeLater(new Runnable() {
public void run() {
Grid grid = new Grid();
GameBoard inst = new GameBoard(grid);
inst.setLocationRelativeTo(null);
inst.setVisible(true);
}
});
}
但是，我还会向 Grid 添加一些功能来控制它的修改方式，但这就是我
I cant seem to get it work using your original method. I would like to just simply create an instance but for the life of me I can't seem to get it working
似乎对我来说工作正常......
import javax.swing.ButtonGroup;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JLabel;
import javax.swing.JRadioButton;
import javax.swing.SwingUtilities;
import javax.swing.WindowConstants;
public class GameBoard extends javax.swing.JFrame {
private JLabel Board;
private JLabel playerNumber;
private ButtonGroup group;
private JButton startButton;
private JRadioButton fourPlayer;
private JRadioButton threePlayer;
private JRadioButton twoPlayer;
private Grid grid;
/**
* Auto-generated main method to display this JFrame
*/
public static void main(String[] args) {
SwingUtilities.invokeLater(new Runnable() {
public void run() {
Grid grid = new Grid();
GameBoard inst = new GameBoard(grid);
inst.setLocationRelativeTo(null);
inst.setVisible(true);
}
});
}
public GameBoard(Grid grid) {
super();
this.grid = grid;
initGUI();
}
private void initGUI() {
try {
setDefaultCloseOperation(WindowConstants.DISPOSE_ON_CLOSE);
getContentPane().setLayout(null);
{
Board = new JLabel();
getContentPane().add(Board);
Board.setText("jLabel1");
Board.setIcon(new ImageIcon(getClass().getClassLoader().getResource("images/board.jpg")));
Board.setBounds(199, 0, 742, 484);
}
{
playerNumber = new JLabel();
getContentPane().add(playerNumber);
playerNumber.setText("Number of Players");
playerNumber.setBounds(40, 22, 117, 27);
}
{
twoPlayer = new JRadioButton();
getContentPane().add(twoPlayer);
twoPlayer.setText("Two Player");
twoPlayer.setBounds(40, 55, 93, 20);
}
{
threePlayer = new JRadioButton();
getContentPane().add(threePlayer);
threePlayer.setText("Three Players");
threePlayer.setBounds(40, 76, 88, 20);
}
{
fourPlayer = new JRadioButton();
getContentPane().add(fourPlayer);
fourPlayer.setText("Four Players");
fourPlayer.setBounds(40, 99, 82, 20);
}
{
startButton = new JButton();
getContentPane().add(startButton);
startButton.setText("Start Game");
startButton.setBounds(43, 136, 83, 23);
}
{
//Group the radio buttons.
ButtonGroup group = new ButtonGroup();
group.add(twoPlayer);
group.add(threePlayer);
group.add(fourPlayer);
}
pack();
this.setSize(963, 523);
} catch (Exception e) {
//add your error handling code here
e.printStackTrace();
}
}
}
关于java - 将数组从一个类调用到另一个类，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/29270407/