这是我第一次在这里发帖，但是自从我开始编程以来，这个社区对我的帮助很大。基本上，我正在开发一个简单的程序，该程序有几种不同的游戏模式用于刽子手游戏。我在这个网站上做了一些研究，并通读了 API 以获得一些关于如何实现我坚持的方法的线索。程序中的所有内容都运行良好，除了每次做出错误猜测时我需要将图像添加到 GUI 的部分。我写了一个名为 wrongGuess(); 的方法。读取 .jpg 并将其分配给 JLabel，但它只会将图片添加到 GUI 一次。我对摇摆和 AWT 非常陌生，发现它们有点令人沮丧。我希望这里有人可以提供一个解决方案，这样我就可以加深我的知识基础。
import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
public class GUI {
private static String lettersFileName;
private static String playerType;
private static char guess;
private static String guessString;
private static HangmanPlayer aiPlayer;
private static hangmanLogic hangmanGame;
private final JPanel hangmanPanel = new JPanel(new BorderLayout());
private JPanel graphicsPanel = new JPanel(new GridLayout());
//Constructor
GUI(String playerType, String lettersFileName, hangmanLogic hangmanGame){
GUI.playerType = playerType;
GUI.lettersFileName = lettersFileName;
GUI.hangmanGame = hangmanGame;
}
/**
* Private listener subclass that allows a user to initiate a guess
* The action is specific to the type of player (i.e. systematic AI,
* random AI, or a human player)
*/
public void drawGUI() {
//Constructs AI player if applicable
if (playerType.equals("s"))
{
aiPlayer = new SystematicPlayer(lettersFileName);
}
else if (playerType.equals("r"))
{
aiPlayer = new RandomPlayer(lettersFileName);
}
//Constructs a hangmanFrame
HangmanFrame hangmanFrame = new HangmanFrame(500, 500);
//Main section
final JPanel mainPanel = new JPanel(new GridLayout(1, 2));
//Title section
final JPanel titlePanel = new JPanel();
titlePanel.setBackground(new Color(40, 40, 40));
final JLabel title = new JLabel("Let's Hang Out...");
title.setFont(new Font("Helvetica", Font.BOLD, 18));
title.setHorizontalAlignment(JLabel.CENTER);
title.setForeground(Color.WHITE);
titlePanel.add(title);
//Left border section
final JPanel leftBorderPanel = new JPanel();
leftBorderPanel.setBackground(new Color(40, 40, 40));
//Right border section
final JPanel rightBorderPanel = new JPanel();
rightBorderPanel.setBackground(new Color(40, 40, 40));
//Hangman section (left sub-section)
//final JPanel hangmanPanel = new JPanel(new BorderLayout());
hangmanPanel.setBackground(new Color(120, 120, 120));
final JLabel hangmanTopCommentLabel = new JLabel("To Start Playing");
hangmanTopCommentLabel.setFont(new Font("Helvetica", Font.BOLD, 16));
hangmanTopCommentLabel.setHorizontalAlignment(JLabel.CENTER);
hangmanTopCommentLabel.setForeground(Color.WHITE);
hangmanPanel.add(hangmanTopCommentLabel, BorderLayout.NORTH);
hangmanPanel.add(graphicsPanel);
//Set images up for display
final JLabel image = new JLabel();
hangmanPanel.add(image, BorderLayout.CENTER);
final JLabel hangmanBottomCommentLabel = new JLabel();
hangmanBottomCommentLabel.setFont(new Font("Helvetica", Font.BOLD, 16));
hangmanBottomCommentLabel.setHorizontalAlignment(JLabel.CENTER);
hangmanBottomCommentLabel.setForeground(Color.WHITE);
hangmanPanel.add(hangmanBottomCommentLabel, BorderLayout.SOUTH);
//Right sub-section
final JPanel rightSubPanel = new JPanel(new GridLayout(3,1));
//Revealed phrase section
final JPanel phrasePanel = new JPanel(new BorderLayout());
phrasePanel.setBackground(new Color(230, 230, 230));
phrasePanel.setBorder(BorderFactory.createLineBorder(Color.black));
final JLabel phraseTitleLabel = new JLabel("Revealed Phrase");
phraseTitleLabel.setFont(new Font("Helvetica", Font.BOLD, 16));
phraseTitleLabel.setHorizontalAlignment(JLabel.CENTER);
phrasePanel.add(phraseTitleLabel, BorderLayout.NORTH);
final JLabel phraseLabel = new JLabel(hangmanGame.getRevealedKeyPhrase());
phraseLabel.setFont(new Font("Helvetica", Font.BOLD, 20));
phraseLabel.setHorizontalAlignment(JLabel.CENTER);
phraseLabel.setForeground(new Color(196, 0, 0));
phrasePanel.add(phraseLabel, BorderLayout.CENTER);
//Already guessed letters section
final JPanel alreadyGuessedPanel = new JPanel(new BorderLayout());
alreadyGuessedPanel.setBackground(new Color(230, 230, 230));
alreadyGuessedPanel.setBorder(
BorderFactory.createLineBorder(Color.black));
final JLabel alreadyGuessedTitleLabel = new JLabel(
"Already Guessed Letters");
alreadyGuessedTitleLabel.setFont(new Font("Helvetica", Font.BOLD, 16));
alreadyGuessedTitleLabel.setHorizontalAlignment(JLabel.CENTER);
alreadyGuessedPanel.add(alreadyGuessedTitleLabel, BorderLayout.NORTH);
final JTextArea alreadyGuessedLabel = new JTextArea("");
alreadyGuessedLabel.setFont(new Font("Helvetica", Font.BOLD, 22));
alreadyGuessedLabel.setBackground(new Color(230, 230, 230));
alreadyGuessedLabel.setLineWrap(true);
alreadyGuessedLabel.setEditable(false);
alreadyGuessedPanel.add(alreadyGuessedLabel, BorderLayout.CENTER);
//Guesses remaining section
final JPanel guessesRemaining = new JPanel(new BorderLayout());
guessesRemaining.setBackground(new Color(230, 230, 230));
guessesRemaining.setBorder(BorderFactory.createLineBorder(Color.black));
final JLabel guessesRemainingTitleLabel = new JLabel("Guesses Remaining");
guessesRemainingTitleLabel.setFont(new Font("Helvetica", Font.BOLD, 16));
guessesRemainingTitleLabel.setHorizontalAlignment(JLabel.CENTER);
guessesRemaining.add(guessesRemainingTitleLabel, BorderLayout.NORTH);
final JLabel guessesRemainingLabel = new JLabel(Integer.toString(
hangmanGame.getnumberOfGuessesRemaining()));
guessesRemainingLabel.setFont(new Font("Helvetica", Font.BOLD, 60));
guessesRemainingLabel.setHorizontalAlignment(JLabel.CENTER);
guessesRemaining.add(guessesRemainingLabel, BorderLayout.CENTER);
//Guess input section
final JPanel guessInputPanel = new JPanel(new FlowLayout());
guessInputPanel.setBackground(new Color(40, 40, 40));
JButton guessButton = new JButton("Guess!");
guessButton.setBackground(new Color(230, 230, 230));
guessButton.setBorderPainted(false);
guessButton.setForeground(new Color(196, 0, 0));
final JLabel playerTypeLabel = new JLabel();
playerTypeLabel.setFont(new Font("Helvetica", Font.BOLD, 14));
playerTypeLabel.setHorizontalAlignment(JLabel.LEFT);
playerTypeLabel.setForeground(Color.WHITE);
final JTextField guessField = new JTextField(10);
guessInputPanel.add(playerTypeLabel);
//Nests panels
mainPanel.add(hangmanPanel);
rightSubPanel.add(phrasePanel);
rightSubPanel.add(alreadyGuessedPanel);
rightSubPanel.add(guessesRemaining);
mainPanel.add(rightSubPanel);
//Modifies specific components to fit the player type
if (playerType.equalsIgnoreCase("s"))
{
playerTypeLabel.setText(("Systematic AI Player"));
hangmanBottomCommentLabel.setText(("Press Guess"));
guessInputPanel.add(guessButton);
}
else if (playerType.equalsIgnoreCase("r"))
{
playerTypeLabel.setText(("Random AI Player"));
hangmanBottomCommentLabel.setText(("Press Guess"));
guessInputPanel.add(guessButton);
}
else if (playerType.equalsIgnoreCase("h"))
{
playerTypeLabel.setText(("Human Player"));
hangmanBottomCommentLabel.setText(("Enter A Guess"));
guessInputPanel.add(guessField);
guessInputPanel.add(guessButton);
/**
* Private listener subclass that selects all text
* in the guessField when it receives a mouse click
*
*/
class GuessFieldMouseListener implements MouseListener
{
public void mousePressed(MouseEvent event)
{
//Selects all text
guessField.requestFocus();
guessField.selectAll();
}
@Override
public void mouseClicked(MouseEvent event)
{
// TODO Auto-generated method stub
}
@Override
public void mouseEntered(MouseEvent event)
{
// TODO Auto-generated method stub
}
@Override
public void mouseExited(MouseEvent event)
{
// TODO Auto-generated method stub
}
@Override
public void mouseReleased(MouseEvent event)
{
// TODO Auto-generated method stub
}
}
//Adds guessFieldListener to guessField
MouseListener guessFieldListener = new GuessFieldMouseListener();
guessField.addMouseListener(guessFieldListener);
}
/**
* Private listener subclass that allows a user to initiate a guess
* The action is specific to the type of player (i.e. systematic AI,
* random AI, or a human player)
*/
class GuessActionListener implements ActionListener
{
public void actionPerformed(ActionEvent event)
{
/*
* Accepts a guess from a given player type and assigns guessString
* (s - AI systematic, r - AI random, or h - human)
* and determines if the guess is part of the key phrase
*/
if (playerType.equals("s"))
{
guess = aiPlayer.makeGuess();
guessString = Character.toString(guess).toUpperCase();
}
else if (playerType.equals("r"))
{
guess = aiPlayer.makeGuess();
guessString = Character.toString(guess).toUpperCase();
}
else if (playerType.equals("h"))
{
guess = guessField.getText().charAt(0);
guessString = Character.toString(guess).toUpperCase();
}
//Determines if the game is already over
if (!hangmanGame.isGameOver())
{
try
{
//Determines if the guess is part of the key phrase
if (hangmanGame.guessCharacter(guess))
{
//Determines if the current guess ended the game
if (hangmanGame.isGameOver())
{
if (hangmanGame.getKeyPhrase().equals(
hangmanGame.getRevealedKeyPhrase()))
{
//Updates comment labels
hangmanTopCommentLabel.setText("You Win!!!");
hangmanBottomCommentLabel.setText("Game Over!");
}
else
{
//Updates comment labels
hangmanTopCommentLabel.setText("You Lose!!!");
hangmanBottomCommentLabel.setText("Game Over!");
}
}
else
{
//Updates comment labels
hangmanTopCommentLabel.setText("Current Guess: " +
guessString);
hangmanBottomCommentLabel.setText("CORRECT!");
//image.setIcon( new ImageIcon("madBro.jpg") );
}
}
else
{
if (hangmanGame.isGameOver())
{
//Updates comment labels
if (hangmanGame.getKeyPhrase().equals(
hangmanGame.getRevealedKeyPhrase()))
{
hangmanTopCommentLabel.setText("You Win!!!");
hangmanBottomCommentLabel.setText("Game Over!");
}
else
{
hangmanTopCommentLabel.setText("You Lose!!!");
hangmanBottomCommentLabel.setText("Game Over!");
}
}
else
{
//Updates comment labels
hangmanTopCommentLabel.setText("Current Guess: " +
guessString);
hangmanBottomCommentLabel.setText("WRONG!");
//image.setIcon( new ImageIcon("realMad.jpg") );
wrongGuess();
}
}
//Updates guessesReaminingLabel and phraseLabel
guessesRemainingLabel.setText(
Integer.toString(
hangmanGame
.getnumberOfGuessesRemaining()));
phraseLabel.setText(
hangmanGame.getRevealedKeyPhrase());
/*
* Allows the alreadyGuessedLabel to be updated
* with a comma delimited list of the already
* guessed characters
*/
if (alreadyGuessedLabel.getText().equals(""))
{
alreadyGuessedLabel.setText(
alreadyGuessedLabel.getText() + " " +
guessString);
}
else
{
alreadyGuessedLabel.setText(
alreadyGuessedLabel.getText() +
", " + guessString);
}
}
catch (InvalidInputException e)
{
//Updates comment labels
hangmanTopCommentLabel.setText("Current Guess: " +
guessString);
hangmanBottomCommentLabel.setText("Invalid Input!");
}
catch (AlreadyGuessedException e){
//Updates comment labels
hangmanTopCommentLabel.setText("Current Guess: " +
guessString);
hangmanBottomCommentLabel.setText("Already Guessed!");
}
}
else
{
//Updates comment labels
hangmanTopCommentLabel.setText("The Game is Over!");
hangmanBottomCommentLabel.setText("Give It Up!");
}
}
}
//Adds guessListener to guessButton
ActionListener guessListener = new GuessActionListener();
guessButton.addActionListener(guessListener);
//Adds components to the frame
hangmanFrame.add(titlePanel, BorderLayout.NORTH);
hangmanFrame.add(leftBorderPanel, BorderLayout.WEST);
hangmanFrame.add(mainPanel, BorderLayout.CENTER);
hangmanFrame.add(rightBorderPanel, BorderLayout.EAST);
hangmanFrame.add(guessInputPanel, BorderLayout.SOUTH);
//Makes the hangman GUI visible
hangmanFrame.setVisible(true);
}
/**
* Adds new graphic representation for each wrong guess made
*/
private void wrongGuess()
{
ImageIcon broMad = createImageIcon("madBro.jpg");
JLabel wrong = new JLabel(broMad);
graphicsPanel.add(wrong);
}
/**
* Method for creating an image icon, found in Oracle.com's knowledge base
* @param path location of desired image file
* @return Icon, or null if path not found
*/
private ImageIcon createImageIcon(String path)
{
java.net.URL imgURL = getClass().getResource(path);
if (imgURL != null) {
return new ImageIcon(imgURL);
} else {
JOptionPane.showMessageDialog(null,
"Couldn't find file: " + path);
return null;
}
}
}