我正在创建一个简单的游戏，玩家可以在2D地图上移动，但是我在显示地图时遇到问题，并且当玩家移动时地图会刷新。
到目前为止，GUI以下列形式获取地图：
X###X
#####
...G.
#####
X..GX
从服务器，这是在构造函数顶部的线程中完成的。然后将该线程传递给一个函数，该函数应该将显示正确图像的JLabel添加到JPanel，但是这似乎没有发生，到目前为止还没有显示任何内容。我的代码如下：
import java.awt.Color;
import java.awt.EventQueue;
import java.awt.Font;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.LinkedList;
import java.util.Queue;
import java.util.Vector;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JTextPane;
public class dodGUI {
public final Vector<String> messageQueue = new Vector<String>();
public final Vector<String> responseQueue = new Vector<String>();
final Queue<String> queue = new LinkedList<String>();
final StringBuilder view = new StringBuilder();
private JFrame frame = new JFrame();
final JPanel mainMenu = new JPanel();
final JPanel humanGameWindow = new JPanel();
public static void main(String[] args) {
dodGUI GUI = new dodGUI();
GUI.frame.setVisible(true);
}
public void handleResponse(String response) {
if(response.equals("WIN")) {
JOptionPane.showMessageDialog(null, "YOU WIN!!!");
mainMenu.setVisible(true);
humanGameWindow.setVisible(false);
}
if (queue.size() < 6) {
queue.add(response);
}
else {
queue.remove();
queue.add(response);
}
if(queue.contains("LOOKREPLY") && !response.equals("LOOKREPLY")) {
view.append(response);
}
if(view.length() == 25) {
createImage(view.toString());
view.delete(0, 25);
}
}
public dodGUI() {
new Thread(new Runnable() {
public void run() {
try {
while (true) {
String receiving = null;
synchronized (responseQueue) {
if (responseQueue.size() > 0) {
receiving = responseQueue.remove(0);
}
}
if (receiving != null) {
handleResponse(receiving);
}
try {
Thread.sleep(50);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
} catch (NullPointerException npe2) {
npe2.printStackTrace();
System.err.println("Null Pointer2: " + npe2);
}
}
}).start();
frame.getContentPane().setBackground(new Color(255, 255, 255));
frame.getContentPane().setLayout(null);
frame.setBounds(100, 100, 500, 630);
frame.setUndecorated(false);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
//############################################################################################################################################################################
mainMenu.setLayout(null);
mainMenu.setBackground(Color.WHITE);
mainMenu.setBounds(0, 0, 500, 600);
mainMenu.setVisible(true);
JLabel mainMenuTitle = new JLabel("DUNGEON OF DOOM!!");
mainMenuTitle.setForeground(new Color(100, 149, 237));
mainMenuTitle.setFont(new Font("Moire", Font.BOLD, 28));
mainMenuTitle.setBounds(50, 13, 380, 50);
mainMenu.add(mainMenuTitle);
final JTextPane hostNameTextPane = new JTextPane();
hostNameTextPane.setToolTipText("Enter the hostname");
hostNameTextPane.setBackground(new Color(192, 192, 192));
hostNameTextPane.setBounds(50, 100, 250, 30);
hostNameTextPane.setFont(new Font("Moire", Font.BOLD, 19));
mainMenu.add(hostNameTextPane);
final JTextPane socketNumberTextPane = new JTextPane();
socketNumberTextPane.setToolTipText("Enter the socket number");
socketNumberTextPane.setBackground(new Color(192, 192, 192));
socketNumberTextPane.setBounds(50, 175, 250, 30);
socketNumberTextPane.setFont(new Font("Moire", Font.BOLD, 19));
mainMenu.add(socketNumberTextPane);
JTextPane userNameTextPane = new JTextPane();
userNameTextPane.setToolTipText("Enter your Username");
userNameTextPane.setBackground(new Color(192, 192, 192));
userNameTextPane.setBounds(50, 250, 250, 30);
userNameTextPane.setFont(new Font("Moire", Font.BOLD, 19));
mainMenu.add(userNameTextPane);
JButton mainMenuQuit = new JButton("Quit");
mainMenuQuit.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
System.exit(0);
}
});
mainMenuQuit.setBackground(new Color(100, 149, 237));
mainMenuQuit.setBounds(220, 345, 70, 55);
mainMenu.add(mainMenuQuit);
JButton playGameHuman = new JButton("Play Game Human");
final dodGUI gui = this;
playGameHuman.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
mainMenu.setVisible(false);
humanGameWindow.setVisible(true);
@SuppressWarnings("unused")
ServerClient newclient = new ServerClient(gui, hostNameTextPane.getText(),
Integer.parseInt(socketNumberTextPane.getText()));
}
});
playGameHuman.setBackground(new Color(100, 149, 237));
playGameHuman.setBounds(50, 345, 150, 55);
mainMenu.add(playGameHuman);
frame.add(mainMenu);
//############################################################################################################################################################################
humanGameWindow.setLayout(null);
humanGameWindow.setBackground(Color.WHITE);
humanGameWindow.setBounds(0, 0, 500, 600);
humanGameWindow.setVisible(false);
JLabel gameTitle = new JLabel("DUNGEON OF DOOM!!");
gameTitle.setForeground(new Color(100, 149, 237));
gameTitle.setFont(new Font("Moire", Font.BOLD, 28));
gameTitle.setBounds(93, 13, 380, 50);
humanGameWindow.add(gameTitle);
JButton up = new JButton("Up");
up.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
synchronized (messageQueue) {
messageQueue.add("MOVE N");
try {
Thread.sleep(50);
} catch (InterruptedException a) {
a.printStackTrace();
}
messageQueue.add("LOOK");
}
}
});
up.setBackground(new Color(100, 149, 237));
up.setBounds(274, 483, 100, 55);
humanGameWindow.add(up);
JButton down = new JButton("Down");
down.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
synchronized (messageQueue) {
messageQueue.add("MOVE S");
try {
Thread.sleep(50);
} catch (InterruptedException a) {
a.printStackTrace();
}
messageQueue.add("LOOK");
}
}
});
down.setBackground(new Color(100, 149, 237));
down.setBounds(274, 540, 100, 55);
humanGameWindow.add(down);
JButton left = new JButton("Left");
left.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
synchronized (messageQueue) {
messageQueue.add("MOVE W");
try {
Thread.sleep(50);
} catch (InterruptedException a) {
a.printStackTrace();
}
messageQueue.add("LOOK");
}
}
});
left.setBackground(new Color(100, 149, 237));
left.setBounds(173, 520, 100, 55);
humanGameWindow.add(left);
JButton right = new JButton("Right");
right.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
synchronized (messageQueue) {
messageQueue.add("MOVE E");
try {
Thread.sleep(50);
} catch (InterruptedException a) {
a.printStackTrace();
}
messageQueue.add("LOOK");
}
}
});
right.setBackground(new Color(100, 149, 237));
right.setBounds(375, 520, 100, 55);
humanGameWindow.add(right);
JButton pickup = new JButton("Pickup");
pickup.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
synchronized (messageQueue) {
messageQueue.add("PICKUP");
try {
Thread.sleep(50);
} catch (InterruptedException a) {
a.printStackTrace();
}
messageQueue.add("LOOK");
}
}
});
pickup.setBackground(new Color(100, 149, 237));
pickup.setBounds(40, 520, 100, 55);
humanGameWindow.add(pickup);
JButton Exit = new JButton("Exit");
Exit.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
System.exit(0);
}
});
Exit.setBackground(new Color(100, 149, 237));
Exit.setBounds(427, 17, 70, 40);
humanGameWindow.add(Exit);
frame.add(humanGameWindow);
}
//##################################################################################################################################################
public void createImage(String view) {
final JPanel fiveByFiveLook = new JPanel();
final JPanel sevenBySevenLook = new JPanel();
String [] viewSplit = view.split("(?!^)");
if(viewSplit.length == 25) {
System.out.println("GOT HERE");
fiveByFiveLook.setLayout(null);
fiveByFiveLook.setBackground(Color.WHITE);
fiveByFiveLook.setBounds(48, 75, 404, 404);
fiveByFiveLook.setVisible(true);
ArrayList<String> viewArray = new ArrayList<String>(Arrays.asList(viewSplit));
JLabel fiveByFiveLabels[][] = new JLabel[5][5];
for(int i = 0, k = 0; i <= 4; i++, k = k + 80) {
for(int j = 0, l = 0; j <= 4; j++, l = l + 80) {
fiveByFiveLabels[i][j] = new JLabel();
if(viewArray.get(0).equals("X")) {
fiveByFiveLabels[i][j].setIcon(new ImageIcon("Lantern.jpg"));
fiveByFiveLook.add(fiveByFiveLabels[i][j]);
viewArray.remove(0);
}
else if(viewArray.get(0).equals("#")) {
fiveByFiveLabels[i][j].setIcon(new ImageIcon("Wall.jpg"));
fiveByFiveLook.add(fiveByFiveLabels[i][j]);
viewArray.remove(0);
}
else if(viewArray.get(0).equals(".")) {
fiveByFiveLabels[i][j].setIcon(new ImageIcon("Floor.jpg"));
fiveByFiveLook.add(fiveByFiveLabels[i][j]);
viewArray.remove(0);
}
else if(viewArray.get(0).equals("E")) {
fiveByFiveLabels[i][j].setIcon(new ImageIcon("Exit.jpg"));
fiveByFiveLook.add(fiveByFiveLabels[i][j]);
viewArray.remove(0);
}
else if(viewArray.get(0).equals("G")) {
fiveByFiveLabels[i][j].setIcon(new ImageIcon("Gold.png"));
fiveByFiveLook.add(fiveByFiveLabels[i][j]);
viewArray.remove(0);
}
fiveByFiveLabels[i][j].setBounds(l, k, 85, 85);
}
}
humanGameWindow.add(fiveByFiveLook);
}
else if(viewSplit.length == 49) {
sevenBySevenLook.setLayout(null);
sevenBySevenLook.setBackground(Color.WHITE);
sevenBySevenLook.setBounds(48, 75, 404, 404);
sevenBySevenLook.setVisible(true);
JButton sevenBySevenLabels[][] = new JButton[7][7];
for(int i = 0, k = 0; i <= 6; i++, k = k + 57) {
for(int j = 0, l = 0; j <= 6; j++, l = l + 57) {
sevenBySevenLabels[i][j] = new JButton();
sevenBySevenLabels[i][j].setBounds(l, k, 62, 62);
//sevenBySevenLabels[i][j].setIcon(new ImageIcon("Sword copy.jpg"));
sevenBySevenLook.add(sevenBySevenLabels[i][j]);
}
}
humanGameWindow.add(sevenBySevenLook);
}
}
}
有人可以告知为什么会发生这种情况，非常感谢：）
P.S。对不起，长篇文章