我一直在玩游戏一段时间了。我遇到了一个我似乎无法解决的问题。
我写了这样的话，当我按下字母“Q”时，会出现暂停菜单。但我的游戏并没有冻结。我试过Thread.sleep（）;方法，但整个游戏冻结。
游戏代码
package flappyBird;
import java.awt.Color;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.Rectangle;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.util.ArrayList;
import java.util.Random;
import java.util.*; // for Random function
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.JFrame;
import javax.swing.Timer;
public class FlappyBird extends JFrame implements ActionListener, MouseListener, KeyListener
{
GUI guis = new GUI();
Font myFont = new Font("Arial", 1, 65);
public static FlappyBird flappyBird;
public final int WIDTH = 800, HEIGHT = 800;
public Renderer renderer;
public Rectangle bird;
public ArrayList<Rectangle> columns;
public int ticks, yMotion, score;
public boolean gameOver, started;
public Random rand;
public FlappyBird()
{
JFrame jframe = new JFrame();
Timer timer = new Timer(20, this);
renderer = new Renderer();
rand = new Random();
jframe.add(renderer);
jframe.setTitle("Flappy Block");
jframe.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
jframe.setSize(WIDTH, HEIGHT);
jframe.addMouseListener(this);
jframe.addKeyListener(this);
jframe.setResizable(false);
jframe.setVisible(true);
bird = new Rectangle(WIDTH / 2 - 10, HEIGHT / 2 - 10, 20, 20);
columns = new ArrayList<Rectangle>();
addColumn(true);
addColumn(true);
addColumn(true);
addColumn(true);
timer.start();
}
public void addColumn(boolean start)
{
int space = 300;
int width = 100;
int height = 50 + rand.nextInt(300);
if (start)
{
columns.add(new Rectangle(WIDTH + width + columns.size() * 300, HEIGHT - height - 120, width, height));
columns.add(new Rectangle(WIDTH + width + (columns.size() - 1) * 300, 0, width, HEIGHT - height - space));
}
else
{
columns.add(new Rectangle(columns.get(columns.size() - 1).x + 600, HEIGHT - height - 120, width, height));
columns.add(new Rectangle(columns.get(columns.size() - 1).x, 0, width, HEIGHT - height - space));
}
}
public void paintColumn(Graphics g, Rectangle column)
{
g.setColor(Color.green.darker());
g.fillRect(column.x, column.y, column.width, column.height);
}
public void jump()
{
if (gameOver)
{
bird = new Rectangle(WIDTH / 2 - 10, HEIGHT / 2 - 10, 20, 20);
columns.clear();
yMotion = 0;
score = 0;
addColumn(true);
addColumn(true);
addColumn(true);
addColumn(true);
gameOver = false;
}
if (!started)
{
started = true;
}
else if (!gameOver)
{
if (yMotion > 0)
{
yMotion = 0;
}
yMotion -= 13;
}
}
@Override
public void actionPerformed(ActionEvent e)
{
int speed = 10;
ticks++;
if (started)
{
for (int i = 0; i < columns.size(); i++)
{
Rectangle column = columns.get(i);
column.x -= speed;
}
if (ticks % 2 == 0 && yMotion < 15)
{
yMotion += 2;
}
for (int i = 0; i < columns.size(); i++)
{
Rectangle column = columns.get(i);
if (column.x + column.width < 0)
{
columns.remove(column);
if (column.y == 0)
{
addColumn(false);
}
}
}
bird.y += yMotion;
for (Rectangle column : columns)
{
if (column.y == 0 && bird.x + bird.width / 2 > column.x + column.width / 2 - 10 && bird.x + bird.width / 2 < column.x + column.width / 2 + 10)
{
score++;
}
if (column.intersects(bird))
{
gameOver = true;
if (bird.x <= column.x)
{
bird.x = column.x - bird.width;
}
else
{
if (column.y != 0)
{
bird.y = column.y - bird.height;
}
else if (bird.y < column.height)
{
bird.y = column.height;
}
}
}
}
if (bird.y > HEIGHT - 120 || bird.y < 0)
{
gameOver = true;
}
if (bird.y + yMotion >= HEIGHT - 120)
{
bird.y = HEIGHT - 120 - bird.height;
gameOver = true;
}
}
renderer.repaint();
}
public void repaint(Graphics g)
{
g.setColor(Color.cyan);
g.fillRect(0, 0, WIDTH, HEIGHT);
g.setColor(Color.orange);
g.fillRect(0, HEIGHT - 120, WIDTH, 120);
g.setColor(Color.green);
g.fillRect(0, HEIGHT - 120, WIDTH, 20);
g.setColor(Color.red);
g.fillRect(bird.x, bird.y, bird.width, bird.height);
for (Rectangle column : columns)
{
paintColumn(g, column);
}
g.setColor(Color.white);
g.setFont(new Font("Arial", 1, 100));
if (!started)
{
g.drawString("Click to start!", 75, HEIGHT / 2 - 50);
}
if (gameOver)
{
g.setFont(myFont);
g.drawString("Final Score:", 5, HEIGHT / 5 - 65);
g.drawString("Game Over!", 200, HEIGHT / 2 - 70);
g.drawString(String.valueOf(score), WIDTH / 2 - 25, 100);
;
}
if (!gameOver && started)
{
g.drawString(String.valueOf(score), WIDTH / 2 - 25, 100);
}
}
public void DrawMenu(Graphics g)
{
guis.setVisible(true);
}
public static void main(String[] args)
{
flappyBird = new FlappyBird();
}
@Override
public void mouseClicked(MouseEvent e)
{
jump();
}
@Override
public void keyPressed(KeyEvent e)
{
int keyCode = e.getKeyCode();
if (keyCode == KeyEvent.VK_SPACE)
jump();
if (keyCode == KeyEvent.VK_ESCAPE)
guis.setVisible(true);
}
@Override
public void mousePressed(MouseEvent e)
{
}
public void keyReleased(KeyEvent e) {}
public void keyTyped(KeyEvent e) {}
@Override
public void mouseReleased(MouseEvent e)
{
}
@Override
public void mouseEntered(MouseEvent e)
{
}
@Override
public void mouseExited(MouseEvent e)
{
}
}
暂停菜单代码
package flappyBird;
import java.awt.EventQueue;
import javax.swing.JFrame;
import javax.swing.JButton;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import javax.swing.JMenuBar;
import javax.swing.JMenu;
import javax.swing.JMenuItem;
import javax.swing.JOptionPane;
import javax.swing.JPopupMenu;
import java.awt.Component;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import javax.swing.JPanel;
import java.awt.Color;
public class GUI {
private JFrame frame;
/**
* Launch the application.
*/
public void guis() {
EventQueue.invokeLater(new Runnable() {
public void run() {
try {
GUI window = new GUI();
window.frame.setVisible(true);
} catch (Exception e) {
e.printStackTrace();
}
}
});
}
/**
* Create the application.
*/
public GUI() {
initialize();
JFrame jframe = new JFrame();
jframe.setTitle("Pause Menu");
jframe.setResizable(false);
}
/**
* Initialize the contents of the frame.
*/
private void initialize() {
frame = new JFrame();
frame.getContentPane().setBackground(Color.GRAY);
frame.setBounds(100, 100, 450, 300);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.getContentPane().setLayout(null);
frame.setResizable(false);
JButton btnContinue = new JButton("Continue");
btnContinue.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
frame.dispose();
}
});
btnContinue.setBounds(146, 67, 113, 23);
frame.getContentPane().add(btnContinue);
JButton btnExit = new JButton("Exit Game");
btnExit.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
if (JOptionPane.showConfirmDialog(null, "Are you sure?", "Exit",
JOptionPane.YES_NO_OPTION) == JOptionPane.YES_OPTION) {
System.exit(0);
} else {
}
}
});
btnExit.setBounds(146, 181, 113, 23);
frame.getContentPane().add(btnExit);
JButton btnShare = new JButton("Share");
btnShare.setBounds(10, 101, 89, 23);
frame.getContentPane().add(btnShare);
JButton btnSaveHighscore = new JButton("Save High Score ");
btnSaveHighscore.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
}
});
btnSaveHighscore.setBounds(137, 135, 132, 23);
frame.getContentPane().add(btnSaveHighscore);
JButton btnLoadHighScore = new JButton("Load High Score");
btnLoadHighScore.setBounds(137, 101, 132, 23);
frame.getContentPane().add(btnLoadHighScore);
JButton btnNewButton = new JButton("Cheat Codes");
btnNewButton.addMouseListener(new MouseAdapter() {
@Override
public void mouseClicked(MouseEvent arg0) {
JOptionPane.showMessageDialog(null, "Press A A A B for 100 points instant.");
}
});
btnNewButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
}
});
btnNewButton.setBounds(294, 101, 105, 23);
frame.getContentPane().add(btnNewButton);
}
private static void addPopup(Component component, final JPopupMenu popup) {
component.addMouseListener(new MouseAdapter() {
public void mousePressed(MouseEvent e) {
if (e.isPopupTrigger()) {
showMenu(e);
}
}
public void mouseReleased(MouseEvent e) {
if (e.isPopupTrigger()) {
showMenu(e);
}
}
private void showMenu(MouseEvent e) {
popup.show(e.getComponent(), e.getX(), e.getY());
}
});
}
public void setVisible(boolean b){
guis();
}
}
答案 0 :(得分：0)
你必须引入一个名为＆＃34;暂停＆＃34;的新布尔变量。或类似的东西。
进入菜单时，必须将其设置为true，退出菜单后将其设置为false。我虽然无法找到你的代码。
在你的actionPerformed中你必须检查暂停标志，如果它没有增加时间/不重绘等等。
所以它基本上是
public void actionPerformed(ActionEvent e)
{
if(!paused)
...
}
以及其他地方：
"when q-key pressed"
{
paused = !paused; // toggle the Pause
if(paused) DrawPauseMenu();
}