java - 使用 JToggleButton 实现内存游戏时计时器不启动

Question

我正在尝试创建一个有 12 个切换按钮的内存游戏。如果您单击一个按钮，图标就会改变。如果两个图标匹配，则两个图标都会翻转。但是，如果它们不匹配，则计时器启动 1.5 秒，然后将两个切换按钮切换回主图标“MemoryGame.png”。这就是我所拥有的:

import java.awt.*;
import java.awt.event.*;
import java.util.ArrayList;
import java.util.Arrays;
import javax.swing.*;
import java.util.Collections;

public class MemoryGame extends JToggleButton implements ActionListener {

private Timer cdTimer;
private Timer swTimer;
private int count = 1;
private JToggleButton[] buttons;
private String[] commandID = {"0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "10", "11"};
ArrayList<ImageIcon> iconList = new ArrayList();
ImageIcon icon = new ImageIcon("MemoryGame.png");

public MemoryGame() {
    JFrame jfrm = new JFrame();

    jfrm.setSize(1000, 1000);

    jfrm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    GridLayout layout = new GridLayout(3,4);

    JPanel gamePanel = new JPanel();
    gamePanel.setLayout(layout);

    JPanel timerPanel;

    createIcons();

    buttons = new JToggleButton[12];

    for(int i = 0; i < buttons.length; i++) {
        JToggleButton btn = new JToggleButton(icon);

        buttons[i] = btn;

        buttons[i].setActionCommand(commandID[i]);

        buttons[i].addActionListener(this);

        gamePanel.add(buttons[i]);   
    }

    //Collections.shuffle(Arrays.asList(buttons));

    jfrm.add(gamePanel, BorderLayout.CENTER);

    jfrm.setLocationRelativeTo(null);

    jfrm.setVisible(true);
}

public void actionPerformed(ActionEvent e){
    JToggleButton btn = (JToggleButton)e.getSource();
    JToggleButton btn2 = (JToggleButton)e.getSource();

    firstClick(btn, btn2);
    secondClick(btn, btn2);
    matching(btn, btn2);
}     

private void firstClick(JToggleButton btn, JToggleButton btn2) {
    if(btn == buttons[0] || btn == buttons[1])
        btn.setIcon(iconList.get(0)); 

    else if(btn == buttons[2] || btn == buttons[3])
        btn.setIcon(iconList.get(1));

    else if(btn == buttons[4] || btn == buttons[5])
        btn.setIcon(iconList.get(2));

    else if(btn == buttons[6] || btn == buttons[7])
        btn.setIcon(iconList.get(3));

    else if(btn == buttons[8] || btn == buttons[9])
        btn.setIcon(iconList.get(4));

    else if(btn == buttons[10] || btn == buttons[11])
        btn.setIcon(iconList.get(5));
}

private void secondClick(JToggleButton btn, JToggleButton btn2){
    if(btn2 != btn && btn2 == buttons[0] || btn2 == buttons[1])
        btn.setIcon(iconList.get(0));

    else if(btn2 != btn && btn2 == buttons[2] || btn2 == buttons[3])
        btn.setIcon(iconList.get(1));

    else if(btn2 != btn && btn2 == buttons[4] || btn2 == buttons[5])
        btn.setIcon(iconList.get(2));

    else if(btn2 != btn && btn2 == buttons[6] || btn2 == buttons[7]) 
        btn.setIcon(iconList.get(3));

    else if(btn2 != btn && btn2 == buttons[8] || btn2 == buttons[9])
        btn.setIcon(iconList.get(4));

    else if(btn2 != btn && btn2 == buttons[10] || btn2 == buttons[11])
        btn.setIcon(iconList.get(5));
}

private void matching(JToggleButton btn, JToggleButton btn2){
    if(btn.isSelected()){
        btn.setEnabled(false);
        if(btn2.isSelected()){
            btn2.setEnabled(false);
            if(!btn.getIcon().toString().equals(btn2.getIcon().toString())){
                startTime(1, btn, btn2);
            }
            else
                retirePair(btn, btn2);           
        }
    }   
}

private void startTime(int countPassed, JToggleButton button, JToggleButton button2){
    ActionListener action = new ActionListener(){
        public void actionPerformed(ActionEvent e){
            if(count == 0){
                cdTimer.stop();
                button.setIcon(icon);
                button2.setIcon(icon);
                button.setEnabled(true);
                button2.setEnabled(true);
                button.setSelected(false);
                button2.setSelected(false);
            }
            else
                count--;
            }

    };
    cdTimer = new Timer(500, action);
    cdTimer.start();
    count = countPassed;
}

private void unflipPair(JToggleButton btn, JToggleButton btn2){
    btn.setEnabled(true);
    btn2.setEnabled(true);
    btn.setSelected(false);
    btn2.setSelected(false);
}

private void retirePair(JToggleButton btn, JToggleButton btn2){
    btn.setEnabled(false);
    btn2.setEnabled(false);
    btn.setSelected(true);
    btn2.setSelected(true);
}

private void createIcons(){
    ImageIcon icon1 = new ImageIcon("1.png");
    ImageIcon icon2 = new ImageIcon("2.png");
    ImageIcon icon3 = new ImageIcon("3.png");
    ImageIcon icon4 = new ImageIcon("4.png");
    ImageIcon icon5 = new ImageIcon("5.png");
    ImageIcon icon6 = new ImageIcon("6.png");

    iconList.add(icon1);
    iconList.add(icon2);
    iconList.add(icon3);
    iconList.add(icon4);
    iconList.add(icon5);
    iconList.add(icon6);
}

我遇到的问题是计时器根本不启动；因此，图标保持不变，即使不匹配也不会翻转回来。有办法让这项工作发挥作用吗？谢谢

Answer 1

这个...

public void actionPerformed(ActionEvent e){
    JToggleButton btn = (JToggleButton)e.getSource();
    JToggleButton btn2 = (JToggleButton)e.getSource();

    firstClick(btn, btn2);
    secondClick(btn, btn2);
    matching(btn, btn2);
}     

在代码其余部分的上下文中没有意义，因为 btn 和 btn2 是同一件事。

相反，当调用 actionPerformed 时，您需要确定是否有任何按钮之前已被操作过，如果有，那么这可能是第二个按钮，您需要比较它们，如果没有，这可能是第一个按钮，您需要等待第二个按钮。

也许像...

private JToggleButton lastButton;

public void actionPerformed(ActionEvent e){
    if (lastButton == null) {
        lastButton = (JToggleButton)e.getSource();
        return;
    }

    JToggleButton btn = (JToggleButton)e.getSource();

    firstClick(btn, lastButton);
    secondClick(btn, lastButton);
    matching(btn, lastButton);

    lastButton = null;
}     

将是一个更好的起点(nb我没有运行其余的代码，但这是一个非常明显的问题，需要先修复它才能进行进一步的测试)

更新 - 经过一些测试，这至少会让计时器启动

已更新...

Hello, so I tried it. However, the buttons still did not flip

基本的修复应该会让你行动起来，但我必须进行一些其他更改才能使其按照你期望的方式工作

import java.awt.BorderLayout;
import java.awt.EventQueue;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.ArrayList;
import javax.swing.ImageIcon;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JToggleButton;
import javax.swing.Timer;

public class MemoryGame extends JToggleButton implements ActionListener {

    public static void main(String[] args) {
        EventQueue.invokeLater(new Runnable() {
            @Override
            public void run() {
                new MemoryGame();
            }
        });
    }

    private Timer cdTimer;
    private JToggleButton[] buttons;
    ArrayList<String> iconList = new ArrayList();

    public MemoryGame() {
        JFrame jfrm = new JFrame();

        jfrm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        GridLayout layout = new GridLayout(3, 4);

        JPanel gamePanel = new JPanel();
        gamePanel.setLayout(layout);

        createIcons();

        buttons = new JToggleButton[12];

        for (int i = 0; i < buttons.length; i++) {
            JToggleButton btn = new JToggleButton("~");
            btn.setFocusable(false);

            buttons[i] = btn;

//            buttons[i].setActionCommand(commandID[i]);
            buttons[i].addActionListener(this);

            gamePanel.add(buttons[i]);
        }

        //Collections.shuffle(Arrays.asList(buttons));
        jfrm.add(gamePanel, BorderLayout.CENTER);

        jfrm.pack();
        jfrm.setLocationRelativeTo(null);

        jfrm.setVisible(true);
    }

    private JToggleButton last;

    public void actionPerformed(ActionEvent e) {
        JToggleButton btn = (JToggleButton) e.getSource();
        firstClick(btn);
        if (last == null) {
            last = btn;
            return;
        }

        matching(btn, last);

        last = null;
    }

    private void firstClick(JToggleButton btn) {
        if (btn == buttons[0] || btn == buttons[1]) {
            btn.setText(iconList.get(0));
        } else if (btn == buttons[2] || btn == buttons[3]) {
            btn.setText(iconList.get(1));
        } else if (btn == buttons[4] || btn == buttons[5]) {
            btn.setText(iconList.get(2));
        } else if (btn == buttons[6] || btn == buttons[7]) {
            btn.setText(iconList.get(3));
        } else if (btn == buttons[8] || btn == buttons[9]) {
            btn.setText(iconList.get(4));
        } else if (btn == buttons[10] || btn == buttons[11]) {
            btn.setText(iconList.get(5));
        }
    }

    private void matching(JToggleButton btn, JToggleButton btn2) {
        if (btn.isSelected()) {
            btn.setEnabled(false);
            if (btn2.isSelected()) {
                btn2.setEnabled(false);
                if (!btn.getText().equals(btn2.getText())) {
                    startTime(btn, btn2);
                } else {
                    retirePair(btn, btn2);
                }
            }
        }
    }

    private void startTime(JToggleButton button, JToggleButton button2) {
        System.out.println("!!");
        ActionListener action = new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                System.out.println("..");
                cdTimer.stop();
                button.setText("~");
                button2.setText("~");
                button.setEnabled(true);
                button2.setEnabled(true);

                button.setSelected(false);
                button2.setSelected(false);
            }

        };
        cdTimer = new Timer(1000, action);
        cdTimer.start();
    }

    private void unflipPair(JToggleButton btn, JToggleButton btn2) {
        btn.setEnabled(true);
        btn2.setEnabled(true);
        btn.setSelected(false);
        btn2.setSelected(false);
    }

    private void retirePair(JToggleButton btn, JToggleButton btn2) {
        btn.setEnabled(false);
        btn2.setEnabled(false);
        btn.setSelected(true);
        btn2.setSelected(true);
    }

    private void createIcons() {
        ImageIcon icon1 = new ImageIcon("1.png");
        ImageIcon icon2 = new ImageIcon("2.png");
        ImageIcon icon3 = new ImageIcon("3.png");
        ImageIcon icon4 = new ImageIcon("4.png");
        ImageIcon icon5 = new ImageIcon("5.png");
        ImageIcon icon6 = new ImageIcon("6.png");

        iconList.add("1");
        iconList.add("2");
        iconList.add("3");
        iconList.add("4");
        iconList.add("5");
        iconList.add("6");

    }

}