我正在为小组项目制作一只飞扬的小鸟克隆。游戏运行良好，并且JFrame表单分别运行良好。问题是，每当触发屏幕游戏时，我都希望JFrame表单可见。但我无法终生使它弹出。
这是主要类别。（游戏本身）
软件包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 javax.swing.JFrame;
import javax.swing.JMenuBar;
import javax.swing.Timer;
//inheariting other classes to use their functions
public class FlappyBird implements ActionListener, MouseListener, KeyListener
{
public static class Information{
// private JLabel lbl1;
public Information(){
}
private void setVisible(boolean b) {
if(gameOver){
// new Information().setVisible(true);
}
//throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
}
}
public static FlappyBird flappyBird;
public final int WIDTH = 800, HEIGHT = 600;
public Renderer renderer;
public Rectangle bird;
public ArrayList<Rectangle> columns;
//motion of the player on the Y axis
public int ticks, yMotion, score, send;
//game start and game end flags.
public boolean started;
public static boolean gameOver;
public Random rand;
public FlappyBird()
{ //objects of timer and JFrame class
JFrame jframe = new JFrame();
Timer timer = new Timer(20, this);
renderer = new Renderer();
rand = new Random();
//adjusting our jframe
jframe.add(renderer);
jframe.setTitle("Bouncy Ball");
jframe.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
jframe.setSize(WIDTH, HEIGHT);
jframe.addMouseListener(this);
jframe.addKeyListener(this);
jframe.setResizable(false);
jframe.setVisible(true);
//creating the player,
bird = new Rectangle(WIDTH / 2 - 10, HEIGHT / 2 - 10, 20, 20);
columns = new ArrayList<Rectangle>();
/*
adding 4 columns because there are 2 obsticles on the screen
at a time and we need a gap to go through.
*/
addColumn(true);
addColumn(true);
addColumn(true);
addColumn(true);
timer.start();
}
//adding oscticles in the game
public void addColumn(boolean start)
{
int space = 300;
int width = 100;
//using a random number for the hight of the obsticle
//so the gap appears at a random spot on the obsticle
int height = 50 + rand.nextInt(300);
if (start)
{ //this is out starting column obsticle
//the gap appears in the middle
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
{ //this is the other column it changes relative to the 1st
//colomn. hence we are getting the size of the previous column
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));
}
}
//coloring obsticles so they stick out
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()
{ //time stamp 51:18
if (gameOver)
{
bird = new Rectangle(WIDTH / 2 - 10, HEIGHT / 2 - 10, 20, 20);
//clearing the obsticles from the array in order to restart
//also resetting position of the player.
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 -= 10;
}
}
@Override
public void actionPerformed(ActionEvent e)
{ //the speed at which the obsticles move
int speed = 8;
ticks++;
//(started) won't let the player move untill the player inputs something
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)
{
//removing obsticles from the array so it dosent overflow as we play
columns.remove(column);
if (column.y == 0)
{
addColumn(false);
}
}
}
bird.y += yMotion;
//the reason we have another for loop here is so that the obsticle
//constently keep spawning.
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++;
send=score;
}
//checking for collision(if the player hits the obsticle)
if (column.intersects(bird))
{//triggering game over flag
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;
}
}
}
}
//checing if the player hits the ceiling or floor of the map
// it will also trigger a game over flag.
if (bird.y > HEIGHT - 120 || bird.y < 0)
{
gameOver = true;
}
if (bird.y + yMotion >= HEIGHT - 120)
{
bird.y = HEIGHT - 120 - bird.height;
gameOver = true;
//new Information().setVisible(true);
}
}
renderer.repaint();
}
//transfering score value to the JFrame.
public int sendNum(){
if(score !=0){
return send;
}
else{
return 0;
}
}
public void nfo(){
if(gameOver){
}
}
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.blue);
g.fillRect(0, HEIGHT - 120, WIDTH, 20);
g.setColor(Color.red);
g.fillRect(bird.x, bird.y, bird.width, bird.height);
//for each loop
for (Rectangle column : columns)
{
paintColumn(g, column);
}
//the game start and game over screen.
g.setColor(Color.black);
g.setFont(new Font("Arial", 1, 100));
if (!started)
{ //instruction for the player before they start
g.drawString("Click to start!", 75, HEIGHT / 2 - 50);
}
if (gameOver)
{ //game over screen
g.drawString("Game Over!", 100, HEIGHT / 2 - 50);
inFo();
}
if (gameOver){
//Information nfo=new Information();
// nfo.setVisible(gameOver);
// new Information().setVisible(gameOver);
}
if (!gameOver && started)
{
g.drawString(String.valueOf(score), WIDTH / 2 - 25, 100);
}
}
public static void inFo(){
System.out.println("hello world");
new Information().setVisible(true);
// if(gameOver){
//Information nfo=new Information();
// throw new UnsupportedOperationException("Not supported yet.");
//i was running out of memory
//i have changed java heap space
// }
}
public static void main(String[] args)
{
flappyBird = new FlappyBird();
}
@Override
public void mouseClicked(MouseEvent e)
{
jump();
}
@Override
public void keyReleased(KeyEvent e)
{
if (e.getKeyCode() == KeyEvent.VK_SPACE)
{
jump();
}
}
@Override
public void mousePressed(MouseEvent e)
{
}
@Override
public void mouseReleased(MouseEvent e)
{
}
@Override
public void mouseEntered(MouseEvent e)
{
}
@Override
public void mouseExited(MouseEvent e)
{
}
@Override
public void keyTyped(KeyEvent e)
{
}
@Override
public void keyPressed(KeyEvent e)
{
}
}
这是第二个用于渲染对象的类
package flappyBird;
import java.awt.Graphics;
import javax.swing.JPanel;
public class Renderer extends JPanel
{
private static final long serialVersionUID = 1L;
@Override
protected void paintComponent(Graphics g)
{
super.paintComponent(g);
FlappyBird.flappyBird.repaint(g);
}
}
这是第三个类，它是JFrame形式
package flappybird;
import javax.swing.*;
import java.util.*;
public class Information extends javax.swing.JFrame {
/**
* Creates new form Information
*/
public int Num;
public Information() {
initComponents();
// FlappyBird Flap=new FlappyBird();
// Num=Flap.sendNum();
}
@SuppressWarnings("unchecked")
// <editor-fold defaultstate="collapsed" desc="Generated Code">
private void initComponents() {
jTextField2 = new javax.swing.JTextField();
jMenuItem2 = new javax.swing.JMenuItem();
jMenuItem3 = new javax.swing.JMenuItem();
jMenuItem5 = new javax.swing.JMenuItem();
D1 = new javax.swing.JDialog();
jScrollPane2 = new javax.swing.JScrollPane();
jTextArea1 = new javax.swing.JTextArea();
D2 = new javax.swing.JDialog();
emptyBorder1 = (javax.swing.border.EmptyBorder)javax.swing.BorderFactory.createEmptyBorder(1, 1, 1, 1);
jLabel1 = new javax.swing.JLabel();
NameField = new javax.swing.JTextField();
jButton1 = new javax.swing.JButton();
jScrollPane1 = new javax.swing.JScrollPane();
Field1 = new javax.swing.JTextArea();
jButton2 = new javax.swing.JButton();
jMenuBar1 = new javax.swing.JMenuBar();
jMenu1 = new javax.swing.JMenu();
jMenuItem1 = new javax.swing.JMenuItem();
jMenuItem4 = new javax.swing.JMenuItem();
MenuClose = new javax.swing.JMenuItem();
jTextField2.setText("jTextField2");
jMenuItem2.setText("jMenuItem2");
jMenuItem3.setText("jMenuItem3");
jMenuItem5.setText("jMenuItem5");
D1.setDefaultCloseOperation(javax.swing.WindowConstants.DISPOSE_ON_CLOSE);
D1.getContentPane().setLayout(new java.awt.CardLayout());
jTextArea1.setColumns(20);
jTextArea1.setRows(5);
jTextArea1.setText("Hello there");
jScrollPane2.setViewportView(jTextArea1);
D1.getContentPane().add(jScrollPane2, "card2");
D2.getContentPane().setLayout(new java.awt.CardLayout());
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
setTitle("High Scores");
setResizable(false);
addWindowListener(new java.awt.event.WindowAdapter() {
public void windowActivated(java.awt.event.WindowEvent evt) {
formWindowActivated(evt);
}
});
jLabel1.setText("Enter your name ");
NameField.setFocusCycleRoot(true);
NameField.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
NameFieldActionPerformed(evt);
}
});
jButton1.setText("Add");
jButton1.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton1ActionPerformed(evt);
}
});
Field1.setColumns(20);
Field1.setRows(5);
jScrollPane1.setViewportView(Field1);
jButton2.setText("Close");
jButton2.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton2ActionPerformed(evt);
}
});
jMenu1.setText("File");
jMenuItem1.setAccelerator(javax.swing.KeyStroke.getKeyStroke(java.awt.event.KeyEvent.VK_H, java.awt.event.InputEvent.CTRL_MASK));
jMenuItem1.setText("How to play");
jMenuItem1.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jMenuItem1ActionPerformed(evt);
}
});
jMenu1.add(jMenuItem1);
jMenuItem4.setAccelerator(javax.swing.KeyStroke.getKeyStroke(java.awt.event.KeyEvent.VK_I, java.awt.event.InputEvent.CTRL_MASK));
jMenuItem4.setText("About");
jMenuItem4.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jMenuItem4ActionPerformed(evt);
}
});
jMenu1.add(jMenuItem4);
MenuClose.setAccelerator(javax.swing.KeyStroke.getKeyStroke(java.awt.event.KeyEvent.VK_F4, java.awt.event.InputEvent.ALT_MASK));
MenuClose.setText("Close");
MenuClose.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
MenuCloseActionPerformed(evt);
}
});
jMenu1.add(MenuClose);
jMenuBar1.add(jMenu1);
setJMenuBar(jMenuBar1);
javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGap(20, 20, 20)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jButton1)
.addComponent(jLabel1, javax.swing.GroupLayout.PREFERRED_SIZE, 122, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(NameField, javax.swing.GroupLayout.PREFERRED_SIZE, 112, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGap(18, 18, 18)
.addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addContainerGap(19, Short.MAX_VALUE))
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
.addGap(0, 0, Short.MAX_VALUE)
.addComponent(jButton2)
.addGap(33, 33, 33))
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGap(49, 49, 49)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, 249, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGroup(layout.createSequentialGroup()
.addComponent(jLabel1)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(NameField, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(jButton1)))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 19, Short.MAX_VALUE)
.addComponent(jButton2)
.addContainerGap())
);
pack();
setLocationRelativeTo(null);
}// </editor-fold>
private void jButton2ActionPerformed(java.awt.event.ActionEvent evt) {
this.dispose();
}
private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {
//if(Num !=0){
// Field1.append(""+ Num);
//}
}
private void MenuCloseActionPerformed(java.awt.event.ActionEvent evt) {
this.dispose();
}
private void NameFieldActionPerformed(java.awt.event.ActionEvent evt) {
}
private void formWindowActivated(java.awt.event.WindowEvent evt) {
//HowToPlay.setVisible(false);
}
private void jMenuItem1ActionPerformed(java.awt.event.ActionEvent evt) {
D1.setVisible(true);
D1.setSize(375, 372);
D1.setLocationRelativeTo(null);
}
private void jMenuItem4ActionPerformed(java.awt.event.ActionEvent evt) {
D2.setVisible(true);
D2.setSize(375, 372);
D2.setLocationRelativeTo(null);
}
public static void main(String args[]) {
/* Set the Nimbus look and feel */
//<editor-fold defaultstate="collapsed" desc=" Look and feel setting code (optional) ">
/* If Nimbus (introduced in Java SE 6) is not available, stay with the default look and feel.
* For details see http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html
*/
try {
for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) {
if ("Nimbus".equals(info.getName())) {
javax.swing.UIManager.setLookAndFeel(info.getClassName());
break;
}
}
} catch (ClassNotFoundException ex) {
java.util.logging.Logger.getLogger(Information.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (InstantiationException ex) {
java.util.logging.Logger.getLogger(Information.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (IllegalAccessException ex) {
java.util.logging.Logger.getLogger(Information.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (javax.swing.UnsupportedLookAndFeelException ex) {
java.util.logging.Logger.getLogger(Information.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
}
//</editor-fold>
/* Create and display the form */
java.awt.EventQueue.invokeLater(new Runnable() {
public void run() {
new Information().setVisible(true);
//throw new UnsupportedOperationException("Not supported yet.");
}
});
}
// Variables declaration - do not modify
private javax.swing.JDialog D1;
private javax.swing.JDialog D2;
private javax.swing.JTextArea Field1;
private javax.swing.JMenuItem MenuClose;
private javax.swing.JTextField NameField;
private javax.swing.border.EmptyBorder emptyBorder1;
private javax.swing.JButton jButton1;
private javax.swing.JButton jButton2;
private javax.swing.JLabel jLabel1;
private javax.swing.JMenu jMenu1;
private javax.swing.JMenuBar jMenuBar1;
private javax.swing.JMenuItem jMenuItem1;
private javax.swing.JMenuItem jMenuItem2;
private javax.swing.JMenuItem jMenuItem3;
private javax.swing.JMenuItem jMenuItem4;
private javax.swing.JMenuItem jMenuItem5;
private javax.swing.JScrollPane jScrollPane1;
private javax.swing.JScrollPane jScrollPane2;
private javax.swing.JTextArea jTextArea1;
private javax.swing.JTextField jTextField2;
// End of variables declaration
}