java - 两行代码之间的延迟 - 图形

Question

我正在尝试创建一个 Simon game 。我正在编写游戏程序，但遇到了问题。我希望程序从队列中读取游戏中之前存在的所有值，并以正确的顺序将它们的颜色变为闪烁(我选择将它们变为灰色，然后在第二秒后恢复正常)，这是我的问题。如果您查看 play() 方法，您将看到我在那里写的注释。我该怎么做？

这是我的代码:

import java.awt.Color;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.awt.geom.Arc2D;
import java.util.Date;

import javax.swing.JPanel;
import javax.swing.Timer;

import unit4.collectionsLib.Queue;

public class window extends JPanel implements MouseListener , ActionListener{

    Queue <Integer>data = new Queue<Integer> ();
    Queue <Integer>temp = new Queue<Integer> ();
    int random;
    Timer prestart;
    int prestartcount;
    Color [] colors = {Color.red,Color.blue,Color.yellow,Color.green};  

    public window (){       
        prestart = new Timer (1000,this);
        int prestartcount=0;    
        prestart.start();       
    }

    public void play (){            
        random = (int)(Math.random()*4);
        data.insert(random);

        int x=0;
        Color temp=Color.black; 
        x = data.remove();
        this.temp.insert(x);
            temp = colors[x];
        colors[x]=Color.gray;
        // delay of one second here
        colors[x]=temp;
    }   

    public void paintComponent(Graphics g) {
        super.paintComponent(g);

        g.setColor(colors[0]);
        g.fillArc(80, 150, 250, 250, 0, 360);

        g.setColor(colors[1]);
        g.fillArc(80, 150, 250, 250, 0, 270);

        g.setColor(colors[2]);
        g.fillArc(80, 150, 250, 250, 0, 180);

        g.setColor(colors[3]);
        g.fillArc(80, 150, 250, 250, 0, 90);        

        g.drawString(prestartcount+"", 0, 30);
        repaint();
    }

    @Override
    public void mouseClicked(MouseEvent arg0) {
        arg0.getLocationOnScreen();     
    }

    @Override
    public void mouseEntered(MouseEvent arg0) { 
    }


    @Override
    public void mouseExited(MouseEvent arg0) {      
    }


    @Override
    public void mousePressed(MouseEvent arg0) {     
    }


    @Override
    public void mouseReleased(MouseEvent arg0) {
    }


    @Override
    public void actionPerformed(ActionEvent act) {
        if (act.getSource()==prestart){
            if (prestartcount<3)
                prestartcount++;
            else{
                prestart.stop();
                play(); 
                }               
            }   
        }   
}

Answer 1

使用基于Swing的单镜头Timer翻转颜色并调用repaint()。请参阅Using Timers in Swing Applications了解详情。