我正在尝试用java制作一个简单的盒子点击游戏，但我卡住了
问题描述 投票：0回答：2
我正在制作一个盒子点击游戏，我希望盒子在 500x500 JFrame 上具有随机形状和位置。另外，我想添加一个分钟计时器，以便游戏在该分钟到期后结束。
这是我的代码：
import javax.swing.*;
import java.awt.*;
import java.awt.event.\*;
public class Main {
int boxSize;
int boxPosY;
int boxPosX;
int points = 0;
boolean isLooping = false;
public static void main(String\[\] args) {
// A JFrame is a window where we can design our UI
JFrame frame = new JFrame("My Game");
frame.setSize(500, 500);
frame.setLayout(null);
// create a Button and a Label
JButton startButton = new JButton("Click to start");
JButton pointButton = new JButton("");
pointButton.setVisible(false);
JLabel pointLabel = new JLabel();
// place and size for components
// setBounds(x position, y position, width, height)
startButton.setBounds(175, 200, 150, 50);
pointButton.setBounds(100, 100, 100, 100);
pointLabel.setBounds(0,0,200,50);
pointLabel.setFont(new Font("Arial", Font.PLAIN, 32));
pointLabel.setForeground(Color.BLUE);
// add components to JFrame f
frame.add(startButton);
frame.add(pointButton);
frame.add(pointLabel);
// add event listener for button click
startButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
pointButton.setVisible(true);
startButton.setVisible(false);
final int points = 0;
pointLabel.setText("Points: " + points);
}
});
while (true) {
pointButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
final int points = 0 + 1;
pointLabel.setText("Points: " + points);
}
});
break; // here to just break out of the loop not finished.
}
// make the frame visible
frame.setVisible(true);
}
public void randomiz() {
boxSize = (int)(Math.random() \* 100) + 1;
boxPosY = (int)(Math.random() \* 500) + 1;
boxPosX = (int)(Math.random() \* 500) + 1;
}
}
我想制作一个简单的盒子点击游戏，但是当我点击一个盒子时，我想在我的
randomiz()actionPerformed2个回答
0
投票
投票
这个...
while (true) {
pointButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
final int points = 0 + 1;
pointLabel.setText("Points: " + points);
}
});
break; // here to just break out of the loop not finished.
}
真是个坏主意。
Swing 是一个事件驱动的环境，也就是说，发生某些事情并且您对其做出响应（
ActionListenerSwing 也是单线程的（并且不是线程安全的），因此您的
while-loop话虽如此，
break总的来说，这是一个坏主意。
如果我这样做，我会从自定义绘画路线开始。
参见：
了解更多详情。
然后我会利用
Shape参见：
了解更多详情。
我还会利用 Swing
Timer您还需要某种方法来检测鼠标何时被单击，请参阅如何编写鼠标侦听器了解更多详细信息。
可运行的示例...
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.EventQueue;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Rectangle;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.util.Random;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.Timer;
public class Main {
public static void main(String[] args) {
new Main();
}
public Main() {
EventQueue.invokeLater(new Runnable() {
@Override
public void run() {
JFrame frame = new JFrame();
frame.add(new MainPane());
frame.pack();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
}
});
}
public class MainPane extends JPanel {
private BoxPane boxPane;
public MainPane() {
setLayout(new BorderLayout());
boxPane = new BoxPane();
add(boxPane);
JButton btn = new JButton("Start");
btn.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
if (boxPane.isRunning()) {
boxPane.stop();
btn.setText("Start");
} else {
boxPane.start();
btn.setText("Stop");
}
}
});
add(btn, BorderLayout.SOUTH);
}
}
public class BoxPane extends JPanel {
private Rectangle boxy;
private Random random = new Random();
private Timer timer;
public BoxPane() {
timer = new Timer(5000, new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
randomiseLocation();
}
});
timer.setInitialDelay(0);
addMouseListener(new MouseAdapter() {
@Override
public void mouseClicked(MouseEvent e) {
if (boxy == null) {
return;
}
if (!boxy.contains(e.getPoint())) {
return;
}
// Box was clicked
randomiseLocation();
timer.restart();
}
});
}
protected void randomiseLocation() {
int x = random.nextInt(getWidth() - boxy.width);
int y = random.nextInt(getHeight() - boxy.height);
boxy.x = x;
boxy.y = y;
repaint();
}
@Override
public Dimension getPreferredSize() {
return new Dimension(200, 200);
}
public boolean isRunning() {
return timer.isRunning();
}
public void start() {
boxy = new Rectangle(0, 0, 20, 20);
randomiseLocation();
timer.start();
}
public void stop() {
timer.stop();
boxy = null;
repaint();
}
@Override
protected void paintComponent(Graphics g) {
super.paintComponent(g);
if (boxy == null) {
return;
}
Graphics2D g2d = (Graphics2D) g.create();
g2d.setColor(Color.RED);
g2d.fill(boxy);
g2d.setColor(Color.BLUE);
g2d.draw(boxy);
g2d.dispose();
}
}
}
但是等等，缺少什么？没错，我所做的一切都是为了你。 “一分钟超时”尚未实现，但我已经为您提供了实现它的基本解决方案，Swing
Timer但是，如果您想显示倒计时时钟，那就有点复杂了。
java.time您可能还想花一些时间研究观察者模式，因为这将为您提供向感兴趣的各方提供有关不同状态变化事件的反馈的方法（仅供参考：
ActionListener0
投票
投票
这是另一个利用 Swing Timer 提供游戏持续时间和剩余时间显示的示例：
可运行示例：
请务必阅读代码中的注释：
public class ClickBox {
/* Swing components declared a class members for so
that they can be accessed class globlly: */
private javax.swing.JFrame frame;
private javax.swing.JButton startButton;
private javax.swing.JLabel pointLabel;
private int boxWidth;
private int boxHeight;
private int boxPosY;
private int boxPosX;
private int points = 0;
private javax.swing.Timer timer;
private final int timeLimit = 60; // Game time limit In seconds
private int secondsRemaining = (timeLimit + 1); // Keeps track of seconds remaining:
private int titleBarHeight;
// Constructor:
public ClickBox() {
// Create Game Window:
initializeForm();
/* Add a Mouse Lister to JFrame to catch the MouseClick event
in the case where the player misses clicking on a box. If
he/she misses a box, then a point is removed: */
frame.addMouseListener(new java.awt.event.MouseAdapter() {
@Override
public void mouseClicked(java.awt.event.MouseEvent e) {
if (timer != null && timer.isRunning()) {
points--;
pointLabel.setText(String.format("Points: %s%20s", points, "Seconds: " + secondsRemaining));
}
}
});
/* Add a Window Listener for JFrame to make use of the
`windowClosing` event in order to shut down the swing
timer if it's running and the Window is abruptly closed: */
frame.addWindowListener(new java.awt.event.WindowAdapter() {
@Override
public void windowClosing(java.awt.event.WindowEvent e) {
if (timer != null && timer.isRunning()) {
timer.stop();
}
}
});
/* Add a JFrame resize event to maintain center for the Points and
Seconds Remaining as well as set the location of the Start button
in the center of JFrame Window when it is resized. */
frame.addComponentListener(new java.awt.event.ComponentAdapter() {
@Override
public void componentResized(java.awt.event.ComponentEvent evt) {
java.awt.Component c = (java.awt.Component) evt.getSource();
pointLabel.setSize(frame.getWidth(), 30);
startButton.setLocation(((frame.getWidth() / 2) - (150/2)),
((frame.getHeight() / 2) - (30/2)) -
(titleBarHeight == 0 ? 35 : titleBarHeight));
}
});
}
public static void main(String[] args) {
/* App started this way to avoid the need for statics
unless we really want them: */
new ClickBox().startGame(args);
}
private void startGame(String[] args) {
// Make the JFrame (Game) Window visible:
java.awt.EventQueue.invokeLater(() -> {
frame.setVisible(true);
// Center Window in Screen
frame.setLocationRelativeTo(null);
/* Get the JFrame's TitleBar height. This value is used
in maintaining center for the Game `Start` Button: */
titleBarHeight = frame.getInsets().top + frame.getInsets().bottom;
});
}
private void initializeForm() {
// Initialize a JFrame Window & set properties:
frame = new javax.swing.JFrame("Click-Box Game - You have " + timeLimit + " seconds to click on Boxes!");
frame.setDefaultCloseOperation(javax.swing.JFrame.EXIT_ON_CLOSE);
frame.setAlwaysOnTop(true);
frame.setSize(600, 600);
frame.setLayout(null);
// Initialize the Start Button & set properties:
startButton = new javax.swing.JButton("Click to start");
// Size and Placement for the Start Button:
startButton.setSize(150, 30);
startButton.setLocation(((frame.getWidth() / 2) - (150/2)),
((frame.getHeight() / 2) - (30/2)) - 20);
// BOX (which is actually a JButton)
javax.swing.JButton boxButton = new javax.swing.JButton("");
boxButton.setVisible(false);
/* Get & set the random Size and random Location
for 'first' box (boxButton JButton). This is
later radomly continued within the boxButton's
MouseClick event: */
randomize();
boxButton.setSize(boxWidth, boxHeight);
boxButton.setLocation(boxPosY, boxPosY);
// Game label for points (score) and seconds remaining display:
pointLabel = new javax.swing.JLabel();
pointLabel.setHorizontalAlignment(javax.swing.JLabel.CENTER);
pointLabel.setSize(frame.getWidth(), 30);
pointLabel.setLocation(0, 0);
pointLabel.setFont(new java.awt.Font("Arial", java.awt.Font.PLAIN, 32));
pointLabel.setForeground(java.awt.Color.BLUE);
// Add components to JFrame:
frame.add(startButton); // Starts as visible:
frame.add(boxButton); // Starts as non-visible:
frame.add(pointLabel); // Starts as non-visible:
// Add an ActionPerformed event for 'Start' button click:
startButton.addActionListener((java.awt.event.ActionEvent e) -> {
boxButton.setVisible(true);
startButton.setVisible(false);
points = 0;
/* Setup and start the Game (Swing) Timer. The ActionEvent
is fired every one second (1000 milliseconds) and the
game duration is maintained with the `secondsRemaining`
counter: */
timer = new javax.swing.Timer(1000, (java.awt.event.ActionEvent evt) -> {
secondsRemaining--;
if (secondsRemaining <= 0) {
timer.stop();
pointLabel.setText("Game Over! You have " + points + " points!");
boxButton.setVisible(false);
startButton.setVisible(true);
secondsRemaining = (timeLimit + 1);
}
else {
pointLabel.setText(String.format("Points: %s%20s", points, "Seconds: " + secondsRemaining));
}
});
timer.setInitialDelay(0); // No Timer Startup Delay:
timer.start(); // Start the Game Timer:
});
// Add an ActionPerformed event for 'BOX' buttons:
boxButton.addActionListener((java.awt.event.ActionEvent e) -> {
points++; // Add a point to the Score:
// Update the Points Label in Game Window:
pointLabel.setText(String.format("Points: %s%20s", points, "Seconds: " + secondsRemaining));
/* Get & set the random Size and random Location
for next box (boxButton JButton) to be displayed. */
randomize();
boxButton.setSize(boxWidth, boxHeight);
boxButton.setLocation(boxPosY, boxPosY);
});
}
/**
* Generates a new Random Size and Location for the Box (`boxButton`) to
* be displayed within the Game Window. Sizes and Locations can change if
* the Game Window is resized.
*/
public void randomize() {
boxWidth = 0;
boxHeight = 0;
int maxWidth = (frame.getWidth() - 10);
int maxHeight = (frame.getHeight() - 10);
// Create a box that fits in location x and y:
while ((boxWidth < 10) || ((boxPosX + boxWidth) >= maxWidth)) {
this.boxPosX = java.util.concurrent.ThreadLocalRandom.current().nextInt(10, maxWidth);
this.boxWidth = java.util.concurrent.ThreadLocalRandom.current().nextInt(10, maxWidth);
}
while ((boxHeight < 10) || ((boxPosY + boxHeight) >= maxHeight)) {
this.boxPosY = java.util.concurrent.ThreadLocalRandom.current().nextInt(10, maxHeight);
this.boxHeight = java.util.concurrent.ThreadLocalRandom.current().nextInt(10, maxHeight);
}
}
}
最新问题
- Selenium 上无法根据 select 的文本选项定位元素的解决方案
- psycopg2.errors.UndefinedTable：关系“mydjangoapp_mymodel”不存在
- PowerShell：使用 $_.FullName.Replace 重命名多个文件夹
- 如何使用reportlab添加指向PDF中对象的链接？
- 在 SwiftUI 地图上选择不同类型的标记
- FastAPI 无法通过 docker-compose 查看 PostgreSQL
- System.TypeInitializationException - “<Module>”的类型初始值设定项引发异常
- 即使我在 eclipse 中添加了 JavaFX 库，JavaFX 也无法工作
- 如何让 Discord 机器人每 24 小时（周末 X）发送一条消息
- adehabitatHR KUD 循环未在 R 中正确覆盖映射
- 在awk中返回两个变量
- 获取：发生致命错误：无法验证闪存芯片连接（未收到串行数据。） - XIAO ESP32C3
- 在 Yii 中查找变量和绑定标记之间的不匹配
- 如何动态获取网格行为列？
- Cakephp：转义分页器上一个链接
- ModuleNotFoundError：没有名为“torch.distributed._function_collectives”的模块
- 使用自定义部分覆盖模板
- zend在ini路由中按照优先级按顺序加载路由。
- 如何使用walker替代核心功能
- Wordpress 21 模板页面问题
© www.soinside.com 2019 - 2024. All rights reserved.