如何将基于计时器的Java Swing应用程序转换为基于线程的应用程序？

Question

在这里，我正在尝试使用秋千和计时器在Java中制作赛车游戏，但我知道我应该使用线程来做。

如何将基于计时器的应用程序转换为基于线程的应用程序？我还认为我可以使用多线程在随机时间以随机速度绘制一些敌人，或者无论如何我可以使用一个计时器或一个线程来做到这一点？（我也知道计时器使用自己的线程。）

我已经尝试在相应行中启动线程而不是计时器。

感谢所有帮助：）

public class GamePanel extends JPanel  {

Motor p;
public Image img1,img2,img3;
Timer time;
int ptm=1000000000;
boolean running = true;
Graphics2D g2d;
Graphics g2;

public GamePanel()  {

p = new Motor();
setFocusable(true);

ImageIcon background = new ImageIcon("D:/Desktop/backgorund.jpg");
    ImageIcon background2 = new ImageIcon("D:/Desktop/backgorund2.jpg");
    ImageIcon motor = new ImageIcon("D:/Desktop/HANGONIMAGE/Motor.png");
    ImageIcon mountains = new ImageIcon();
    img1 = background.getImage();
    img2 = background2.getImage();
    img3 = motor.getImage();

time= new Timer(5, gameLoop);
    time.start();


}

public void addNotify(){

    super.addNotify();
    addKeyListener(new KeyMonitor(p));
}



private ActionListener gameLoop = new ActionListener() {

public void actionPerformed(ActionEvent e)
{

    p.uptade(); 
    repaint();
}   
 };

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

    Graphics2D g2d = (Graphics2D) g;
    Graphics2D speed = (Graphics2D) g;
    Graphics2D score = (Graphics2D) g;

  if(p.up) //SPEED
    p.speed++;
  if(p.down || !p.up)
    p.speed--;
  if(p.speed==-1)
    p.speed++;
  if(p.speed>=600)
    p.speed=600;


    if((p.speed%2==1 && p.speed>0 )) {

    g2d.drawImage(img2,p.getX(),p.getY(),null); //background
    }
    else 
    g2d.drawImage(img1,p.getX(),p.getY(),null); //background    


    if(p.speed>=500)
    g2d.drawImage(img3,200,200,null);   

    g2d.drawImage(p.getImage(),265,320,null);  //player motor

    //SPEED
    speed.setFont(new Font("Segoe Script", Font.BOLD + Font.ITALIC,20));
    speed.setPaint(Color.ORANGE);
    speed.drawString("SPEED : "+p.speed, 560, 40);
    //SCORE
     score.setFont(new Font("Algerian", Font.BOLD + Font.ITALIC, 20));
     score.setPaint(Color.RED);

     if(p.speed < 30)     
     p.score += p.speed/20;      
     else
     p.score += p.speed/30;
     speed.drawString("SCORE: "+p.score, 20, 40);               
   }                
   }