学以致用——Java源码——抛双骰游戏图形界面版（GUI-Based Craps Game）

游戏简介：

1. 抛双骰游戏的Swing界面版（CLI命令行版本见：学以致用——Java源码——抛双骰儿游戏改进版（Craps Game Modification with wagering）,https://blog.csdn.net/hpdlzu80100/article/details/85231636）

2. 单一页面游戏(Single page application)

3. 设置了初始金额账户为1000，账户金额等于0时，无法继续游戏

4. 用户可设置下注金额（默认为0，即，不下注，没有输赢，但可以无限玩下去）

5. 添加了动态图，提高游戏的生动程度

运行示例：

注：相比命令行版本的游戏，这个版本已经有一定的可玩性了，准备有空给孩子们“炫炫”。

代码：

1. 实体类

import java.awt.BorderLayout;
import java.awt.FlowLayout;
import java.awt.Font;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;
import java.security.SecureRandom;import javax.swing.Icon;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JTextField;/*** * 6.33 (Craps Game Modification) Modify the craps program of Fig. 6.8 to allow* wagering. Initialize variable bankBalance to 1000 dollars. Prompt the player* to enter a wager. Check that wager is less than or equal to bankBalance, and* if it’s not, have the user reenter wager until a valid wager is entered.* Then, run one game of craps. If the player wins, increase bankBalance by* wager and display the new bankBalance. If the player loses, decrease* bankBalance by wager, display the new bank- Balance, check whether* bankBalance has become zero and, if so, display the message "Sorry. You* busted!" As the game progresses, display various messages to create some* “chatter,” such as "Oh, you're going for broke, huh?" or "Aw c'mon, take a* chance!" or "You're up big. Now's the time to cash in your chips!". Implement* the “chatter” as a separate method that randomly chooses the string to* display.* * 12.16 (GUI-Based Craps Game) Modify the application of Section 6.10 to* provide a GUI that enables the user to click a JButton to roll the dice. The* application should also display four JLabels and four JTextFields, with one* JLabel for each JTextField. The JTextFields should be used to display the* values of each die and the sum of the dice after each roll. The point should* be displayed in the fourth JTextField when the user does not win or lose on* the first roll and should continue to be displayed until the game is lost.**/public class CrapsWithWagerFrame extends JFrame{   //声明控件private JLabel dice1PointJLabel;private JLabel dice2PointJLabel;private JLabel totalPointJLabel;private JLabel gameResultJLabel;private JLabel wagerJLabel;private JLabel accountBalanceJLabel;private JLabel errorMsgJLabel;private JLabel hintJLabel;private JLabel expressionJLabel;private JButton startJButton;private JTextField randMsgJTextField;     private JTextField dice1PointTextField;private JTextField dice2PointTextField;private JTextField totalPointTextField;private JTextField gameResultTextField;private JTextField wagerTextField;private JTextField accountBalanceTextField;private JPanel mainJPanel;private JPanel topJPanel;private static final String[] expressions = {"smile.gif", "cry.gif",  "fight.gif", "dice.gif"};private final Icon[] icons = { new ImageIcon(getClass().getResource(expressions[0])),new ImageIcon(getClass().getResource(expressions[1])), new ImageIcon(getClass().getResource(expressions[2])),new ImageIcon(getClass().getResource(expressions[3]))};// create secure random number generator for use in method rollDiceprivate static final SecureRandom randomNumbers = new SecureRandom();// enum type with constants that represent the game statusprivate enum Status {CONTINUE, WON, LOST, NOTSTARTED};// constants that represent common rolls of the diceprivate static final int SNAKE_EYES = 2;private static final int TREY = 3;private static final int SEVEN = 7;private static final int YO_LEVEN = 11;private static final int BOX_CARS = 12;private int myPoint = 0; // point if no win or loss on first rollprivate Status gameStatus; // can contain CONTINUE, WON or LOSTprivate int bankBalance = 1000;private int wager = 0;private int sumOfDice;private int count = 0; //记录游戏一局游戏的回合次数public CrapsWithWagerFrame () {super("抛双骰游戏——图形界面版（GUI-Based Craps Game）");//setLayout(new FlowLayout(FlowLayout.CENTER,3,2));//初始化基本控件及变量accountBalanceJLabel = new JLabel("账户余额：");wagerJLabel = new JLabel("下注金额：");dice1PointJLabel = new JLabel("骰子1点数：");dice2PointJLabel = new JLabel("骰子2点数：");totalPointJLabel = new JLabel("平手点数：");gameResultJLabel = new JLabel("游戏结果：");errorMsgJLabel = new JLabel("");errorMsgJLabel.setFont(new Font("宋体", Font.BOLD, 16));hintJLabel = new JLabel("温馨提示：");hintJLabel.setFont(new Font("宋体", Font.BOLD,13));expressionJLabel = new JLabel(icons[3]);startJButton = new JButton("开始游戏");wagerTextField = new JTextField("0",5);dice1PointTextField = new JTextField(5);dice1PointTextField.setEditable(false);dice2PointTextField = new JTextField(5);dice2PointTextField.setEditable(false);totalPointTextField = new JTextField(5);totalPointTextField.setEditable(false);gameResultTextField = new JTextField(30);gameResultTextField.setEditable(false);randMsgJTextField = new JTextField(30);randMsgJTextField.setEditable(false);randMsgJTextField.setText(chat());accountBalanceTextField = new JTextField(6);accountBalanceTextField.setText(Integer.toString(bankBalance));accountBalanceTextField.setEnabled(false);accountBalanceTextField.setFont(new Font("Arial", Font.BOLD,13));mainJPanel = new JPanel();topJPanel = new JPanel();gameStatus = Status.NOTSTARTED;   //游戏启动时的状态//注册事件监听程序startJButton.addActionListener(new ButtonHandler());startJButton.addKeyListener(new KeyAdapter() {public void keyPressed(KeyEvent e){if(e.getKeyCode()==KeyEvent.VK_ENTER)playGame();}});topJPanel.setLayout(new FlowLayout(FlowLayout.LEFT,10,2));topJPanel.add(startJButton);topJPanel.add(hintJLabel);topJPanel.add(randMsgJTextField);add(topJPanel,BorderLayout.NORTH);mainJPanel.setLayout(new FlowLayout(FlowLayout.LEFT,5,3));mainJPanel.add(accountBalanceJLabel);mainJPanel.add(accountBalanceTextField);mainJPanel.add(wagerJLabel);mainJPanel.add(wagerTextField);mainJPanel.add(dice1PointJLabel);mainJPanel.add(dice1PointTextField);mainJPanel.add(dice2PointJLabel);mainJPanel.add(dice2PointTextField);mainJPanel.add(totalPointJLabel);mainJPanel.add(totalPointTextField);mainJPanel.add(gameResultJLabel);mainJPanel.add(gameResultTextField);mainJPanel.add(expressionJLabel);add(mainJPanel);add(errorMsgJLabel,BorderLayout.SOUTH);setVisible(true);}// inner class for button event handling// plays one game of crapsprivate class ButtonHandler implements ActionListener {// handle button event@Overridepublic void actionPerformed(ActionEvent event){playGame();}} // roll dice, calculate sum and display results/*** *  @return 抛双骰点数*  @Date Jan 15, 2019, 10:10:14 AM*/private int rollDice(){// pick random die valuesint die1 = 1 + randomNumbers.nextInt(6); // first die rollint die2 = 1 + randomNumbers.nextInt(6); // second die rolldice1PointTextField.setText(Integer.toString(die1));dice2PointTextField.setText(Integer.toString(die2));int sum = die1 + die2; // sum of die valuesreturn sum; }// 输出随机聊天信息/*** *  @return 随机聊天信息*  @Date Jan 15, 2019, 10:09:33 AM*/public String chat(){int msgNum = 1 + randomNumbers.nextInt(4); // 生成随机消息编号String randMsg = "";//表示随机聊天信息的常数final String MSG1 = "不要小看抛双骰儿，这里面有大学问！";final String MSG2 = "今天点子有点儿背？积德行善会转运哦！";final String MSG3 = "小赌怡情，大赌伤身哦！";final String MSG4 = "运气是什么，账户余额翻倍靠的就是运气！";//提示下注switch (msgNum){case 1:randMsg = MSG1;break;case 2:randMsg = MSG2;break;case 3:randMsg = MSG3;break;case 4:randMsg = MSG4;break;}return randMsg;    }public void playGame() {//新开一局if (gameStatus != Status.CONTINUE) {    randMsgJTextField.setText(chat()); //随机输出聊天信息，增强游戏的互动性//新开一局初始化 count = 0; //重置回合计数器totalPointTextField.setText(""); //平手点数重置errorMsgJLabel.setText(""); //重置错误消息显示区wagerTextField.setEditable(true);   //启用下注金额文本框的编辑功能expressionJLabel.setIcon(icons[3]); //重置表情wager = Integer.parseInt(wagerTextField.getText());  //重新设置下注金额//下注金额校验 （下注金额等于0时，账户余额不会发生改变）if (wager <0 || wager > bankBalance) {errorMsgJLabel.setText("输入错误：请输入有效的下注金额!");wagerTextField.setText("");} else {sumOfDice = rollDice(); // first roll of the dice// determine game status and point based on first roll switch (sumOfDice) {case SEVEN: // win with 7 on first rollcase YO_LEVEN: // win with 11 on first roll           gameStatus = Status.WON;bankBalance += wager;gameResultTextField.setText(String.format("恭喜你，你赢了！你当前账户余额为：%d", bankBalance));accountBalanceTextField.setText(Integer.toString(bankBalance));randMsgJTextField.setText(chat()); //随机输出聊天信息，增强游戏的互动性wagerTextField.setEditable(true); //启用下注金额文本框的编辑功能expressionJLabel.setIcon(icons[0]); break;case SNAKE_EYES: // lose with 2 on first rollcase TREY: // lose with 3 on first rollcase BOX_CARS: // lose with 12 on first rollgameStatus = Status.LOST;//计算账户余额if (bankBalance - wager >= 0) {bankBalance -= wager;gameResultTextField.setText(String.format("哦哦，你输了！你当前账户余额为：%d", bankBalance));}else {bankBalance = 0;gameResultTextField.setText("哦哦，你输了！你当前账户余额已清零！请努力工作，挣钱后再来吧！");}gameResultTextField.setText(String.format("哦哦，你输了！你当前账户余额为：%d", bankBalance));accountBalanceTextField.setText(Integer.toString(bankBalance));randMsgJTextField.setText(chat()); //随机输出聊天信息，增强游戏的互动性wagerTextField.setEditable(true);   //启用下注金额文本框的编辑功能expressionJLabel.setIcon(icons[1]);break;default: // did not win or lose, so remember point         gameStatus = Status.CONTINUE; // game is not overwagerTextField.setEditable(false);    //平手时不能修改下注金额count ++;myPoint = sumOfDice; // remember the point，第一次平手时，记录点数gameResultTextField.setText(String.format("哦，平手！点数为： %d%n", myPoint));totalPointTextField.setText(Integer.toString(myPoint));startJButton.setText("继续游戏");randMsgJTextField.setText(chat()); //随机输出聊天信息，增强游戏的互动性expressionJLabel.setIcon(icons[2]);break;} }}//平手状态，继续当前一局的游戏else if (gameStatus == Status.CONTINUE) {    randMsgJTextField.setText(chat()); //随机输出聊天信息，增强游戏的互动性errorMsgJLabel.setText(""); //重置错误消息显示区sumOfDice = rollDice(); // roll dice again// determine game statusif (sumOfDice == myPoint) // win by making point{gameStatus = Status.WON;bankBalance += wager;gameResultTextField.setText(String.format("恭喜你，你赢了！你当前账户余额为：%d", bankBalance));accountBalanceTextField.setText(Integer.toString(bankBalance));startJButton.setText("开始游戏");randMsgJTextField.setText(chat()); //随机输出聊天信息，增强游戏的互动性wagerTextField.setEditable(true);  //启用下注金额文本框的编辑功能expressionJLabel.setIcon(icons[0]);}else if (sumOfDice == SEVEN) // lose by rolling 7 before point{gameStatus = Status.LOST;//计算账户余额if (bankBalance - wager >= 0) {bankBalance -= wager;gameResultTextField.setText(String.format("哦哦，你输了！你当前账户余额为：%d", bankBalance));}else {bankBalance = 0;gameResultTextField.setText("哦哦，你输了！你当前账户余额已清零！请努力工作，挣钱后再来吧！");}accountBalanceTextField.setText(Integer.toString(bankBalance));startJButton.setText("开始游戏");randMsgJTextField.setText(chat()); //随机输出聊天信息，增强游戏的互动性wagerTextField.setEditable(true);  //启用下注金额文本框的编辑功能expressionJLabel.setIcon(icons[1]);}else {gameStatus = Status.CONTINUE; // game is not overcount++;gameResultTextField.setText(String.format("还是平手哦！第%d次平手",count));totalPointTextField.setText(Integer.toString(myPoint));randMsgJTextField.setText(chat()); //随机输出聊天信息，增强游戏的互动性expressionJLabel.setIcon(icons[2]);}}}} // end class

2. 测试类

import javax.swing.JFrame;public class CrapsWithWagerFrameTest {public static void main(String[] args){ CrapsWithWagerFrame testFrame = new CrapsWithWagerFrame(); testFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);testFrame.setSize(600, 580); testFrame.setVisible(true); } }

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学以致用——Java源码——抛双骰游戏图形界面版（GUI-Based Craps Game）

游戏简介：

运行示例：

代码：

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