在Java的内存游戏中将2张图片打开一会儿 [英] keep 2 pictures open for a while in memory game in java

问题描述

我在做一个项目(纸牌配对游戏)，它快要完成了，但是事情是当我单击第二个按钮以打开图片(如果与第一个不一样)时，它突然关闭了.没什么错，但是用户必须看一会儿图片(也许2秒).所以我用Thread.sleep(2000)但我不能正常工作.它将图标设置为null，然后开始等待2秒钟.这是我的代码，试图创建SSCCE，

hi there i am working on a project(card matching game) and it is almost finished but the things is when i clicked on second button to open the picture if it not same with first it suddenly closed. well nothings is wrong but user must see the picture for a while(maybe 2 second). so i used Thread.sleep(2000) but i doesnt work properly. it sets icon null and then start to wait 2 seconds. here is my code a tried to make a SSCCE,

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.GridLayout;
import java.awt.Image;
import java.awt.Menu;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.ItemEvent;
import java.awt.event.ItemListener;
import java.util.Random;
import java.util.Vector;

import javax.swing.BorderFactory;
import javax.swing.Icon;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.JPanel;
import javax.swing.JToggleButton;
import javax.swing.UIManager;
import javax.swing.border.*;

public class ConcentrationGame3 extends JFrame {

    /**
     * 
     */
    private static final long serialVersionUID = 1L;
    private int buttoncounter=0;
    private int counter = 0;
    private JFrame frame;
    private JPanel mainPanel;
    private JPanel buttonPanel;
    private JMenuBar menuBar;
    private JMenu menu;
    private JMenuItem menuItem;
    private int[] arr = new int[16];
    private int i,j;
    private int random;
    private int size = 4;
    private Icon hidden;
    private GameButton buttonFirst;
    private GameButton buttonSecond;
    int k=0;

    private Icon img[] = {UIManager.getIcon("OptionPane.errorIcon"),
            UIManager.getIcon("OptionPane.informationIcon"),
            UIManager.getIcon("OptionPane.warningIcon")};

    private Icon iconList[] = new ImageIcon[size];

    public ConcentrationGame3(){

        createArray();
        initComponents();

    }


    private void initComponents(){


        frame = new JFrame("Concentration Game");

        menuBar = new JMenuBar();
        menu = new JMenu("Menu");

        frame.setJMenuBar(menuBar);

        menuBar.add(menu);

        menuItem = new JMenuItem("New Game");
        menu.add(menuItem);

        menuItem = new JMenuItem("Solve");
        menu.add(menuItem);

        menuItem = new JMenuItem("Exit");
        menu.add(menuItem);

        mainPanel = new JPanel(new BorderLayout(5, 5));
        mainPanel.setBorder(new EmptyBorder(4,4,4,4));

        frame.setContentPane(mainPanel);

        buttonPanel = new JPanel(new GridLayout(4,4,5,5));
        buttonPanel.setBackground(Color.green);

        for(i=0; i<4; i++){

            final GameButton button = new GameButton(new JToggleButton(),iconList[i]);
            button.addItemListener(new ItemListener(){
                public void itemStateChanged(ItemEvent e){

                    button.setState();
                }
            });

            button.addActionListener(new ActionListener(){
                public void actionPerformed(ActionEvent e){

                        try {
                            buttonActionPerformed(e,button);
                        } catch (InterruptedException e1) {
                            // TODO Auto-generated catch block
                            e1.printStackTrace();
                        }
                }
            });
            buttonPanel.add(button);
        }



        mainPanel.add(buttonPanel, BorderLayout.CENTER);


        frame.setSize(300, 300);
        //frame.pack();
        frame.setLocation(300, 300);
        frame.setVisible(true);
        frame.setDefaultCloseOperation(EXIT_ON_CLOSE);
    }

    class GameButton extends JToggleButton{

        private static final long serialVersionUID = 1L;
        private JToggleButton gameButton;
        private Icon icon;

        public GameButton(JToggleButton gameButton,Icon icon){

            this.gameButton = gameButton;
            this.icon = icon;
        }

         public void setState() {
                if (this.isSelected() || !this.isEnabled()) {
                    this.setIcon(icon);
                } else {
                    this.setIcon(hidden);
                }
            }
        }

    private void buttonActionPerformed(ActionEvent e, GameButton button) throws InterruptedException {
        if(button.isSelected()){
            buttoncounter++;

            if(buttoncounter==1){
                buttonFirst = (GameButton) e.getSource();
            }
            else if(buttoncounter==2){
                buttonSecond = (GameButton) e.getSource();
                buttoncounter=0;

                    if( checkPairs(buttonFirst,buttonSecond) ) {
                        retirePair(buttonFirst,buttonSecond);
                    }

                    else{
                            Thread.sleep(2000);
                            buttonFirst.setIcon(hidden);
                            buttonFirst.setSelected(false);
                            buttonSecond.setIcon(hidden);
                            buttonSecond.setSelected(false);

                    }

            }
        }
    }

    private void retirePair(GameButton a, GameButton b){
        a.setSelected(true);
        a.setEnabled(false);
        b.setSelected(true);
        b.setEnabled(false);
    }

    private boolean checkPairs(GameButton first, GameButton second){

        if(first.getIcon().equals(second.getIcon()))
            return true;
        else
            return false;

    }

    private void createArray(){

        Random rnd = new Random();

        while(i<4){

            random = rnd.nextInt(3)+1;

            if(!includes(random)){
                arr[i]=random;
                iconList[i] = img[random-1];
                i++;
            }
        }
    }

    public boolean includes(int rnd){

        counter=0;

        for(j=0; j<arr.length; j++){

            if(arr[j] == rnd){
                counter++;
                if(counter>1)
                    return true;
            }
        }

        return false;
    }

    /**
     * @param args
     */
    public static void main(String[] args) {

        new ConcentrationGame3();

    }

}

如果您能帮助我，我表示感谢.还是谢谢你:)

i appreciated if you can help me. and thanks anyway :)

推荐答案

您不希望在Swing线程上使用Thread.sleep，因为我确定您已经阅读过任何搜索内容，这样做是使 Swing 进入睡眠状态，睡眠意味着冻结所有绘图，并且冻结所有用户交互(如对按钮的响应).而是使用Swing计时器，它可以使您暂停应用程序而不会阻止Swing绘制第二张图像并同时显示2或3秒钟.逻辑将是:显示两个图像，启动计时器，并且当计时器在2或3秒(或您设置的延迟时间)后滴答"时，将图像隐藏在计时器的ActionListener中.

You don't want to use Thread.sleep on the Swing thread, since as I'm sure you've read if you've done any searching, what this does is put Swing to sleep, sleep meaning all drawing is frozen, and all user interaction (like response to buttons) is frozen. Instead use a Swing Timer which will allow you to pause your application without preventing Swing from drawing your second image and showing both for 2 or 3 seconds. The logic will be: show both images, start the timer, and when the timer "ticks" after 2 or 3 seconds (or whatever you set the delay to be), hide the images inside of the timer's ActionListener.

还:确保将计时器设置为非重复计时器(Swing Timer的布尔方法可以执行此操作).另外，在显示两个图像时，您将使所有JToggleButtons不响应(或启用== false)，然后希望Timer在滴答"时将所有未配对的按钮设置为响应状态. .

Also: make sure that you set the timer as non-repeating (there's a boolean method of Swing Timer that does this). Also, you'll want to make all of your JToggleButtons unresponsive (or enabled == false) while the the two images are shown, and then you want the Timer to set all the non-paired buttons to a responsive state when it "ticks".

这篇关于在Java的内存游戏中将2张图片打开一会儿的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！