mouseDragged和多个对象有问题

Question

我们正在玩mouseDragged和multipleObjects。

我们正在尝试创建一个棋盘游戏，其中有8个棋子可以单独点击并拖动到棋盘上各自的位置（不使用jpanel，jframe等）。截至目前，我们已经为棋盘游戏创建了8个单独的棋子，但是当你点击/拖动棋子'2'时，它会让所有的棋子在最上面的棋子下聚集在一起。

我们的初始解决方案（未显示）是使用按钮在玩家之间循环，但我们想尝试在不使用按钮的情况下执行此操作。欢迎任何建议。

板：

import java.applet.Applet;
import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.Image;
import java.awt.MediaTracker;
import java.awt.Toolkit;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.awt.event.MouseMotionListener;
import java.net.MalformedURLException;
import java.net.URL;

public class GameBoard extends Applet implements ActionListener,
    MouseListener, MouseMotionListener
{
  GamePiece gp1;
  GamePiece gp2;
  GamePiece gp3;
  GamePiece gp4;
  GamePiece gp5;
  GamePiece gp6;
  GamePiece gp7;
  GamePiece gp8;
  Image bg;
  int xposR;
  int yposR;

  @Override
  public void init()
  {
    System.out.println(getCodeBase().getPath().toString());
    MediaTracker tracker = new MediaTracker(this);
    try
    {
      bg = getImage(new URL("file:/C:/Backdroptest.png"));
    }
    catch (MalformedURLException e)
    {
      // TODO Auto-generated catch block
      e.printStackTrace();
    }
    tracker.addImage(bg, 0);
    Dimension d = Toolkit.getDefaultToolkit().getScreenSize();
    this.setSize(d);

    gp1 = new GamePiece(0, 0, "blue");
    gp2 = new GamePiece(40, 0, "red");
    gp3 = new GamePiece(80, 0, "yellow");
    gp4 = new GamePiece(120, 0, "green");
    gp5 = new GamePiece(160, 0, "orange");
    gp6 = new GamePiece(200, 0, "cyan");
    gp7 = new GamePiece(240, 0, "gray");
    gp8 = new GamePiece(280, 0, "magenta");
    addMouseListener(this);
    addMouseMotionListener(this);

  }

  @Override
  public void paint(Graphics g)
  {
    g.drawImage(bg, 0, 0, this);
    gp1.display(g);
    gp2.display(g);
    gp3.display(g);
    gp4.display(g);
    gp5.display(g);
    gp6.display(g);
    gp7.display(g);
    gp8.display(g);

  }

  @Override
  public void actionPerformed(ActionEvent ev)
  {
  }

  @Override
  public void mousePressed(MouseEvent e)
  {

  }

  @Override
  public void mouseReleased(MouseEvent e)
  {

  }

  @Override
  public void mouseEntered(MouseEvent e)
  {
  }

  @Override
  public void mouseExited(MouseEvent e)
  {
  }

  @Override
  public void mouseMoved(MouseEvent e)
  {
  }

  @Override
  public void mouseClicked(MouseEvent e)
  {
  }

  @Override
  public void mouseDragged(MouseEvent e)
  {
    gp1.setLocation(xposR, yposR);
    gp2.setLocation(xposR, yposR);
    xposR = e.getX();
    yposR = e.getY();
    repaint();

  }
}

GamePieces 这部分表示8个单独的

import java.awt.Color;
import java.awt.Graphics;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.awt.event.MouseMotionListener;

public class GamePiece implements MouseListener, MouseMotionListener
{
  int xpos;
  int ypos;
  int circleWidth = 30;
  int circleHeight = 30;
  Boolean mouseClick;
  Color c;

  public GamePiece(int x, int y, String cc)
  {
    xpos = x;
    ypos = y;
    mouseClick = true;
    if (!mouseClick)
    {
      xpos = 50;
      ypos = 50;
    }
    setColor(cc);
  }

  public void setLocation(int x, int y)
  {
    xpos = x;
    ypos = y;
    // mouseClick = true;

  }

  public void setColor(String s)
  {

    if (s.equals("blue"))
    {
      c = Color.blue;
    }
    else if (s.equals("red"))
    {
      c = Color.red;
    }
    else if (s.equals("yellow"))
    {
      c = Color.yellow;
    }
    else if (s.equals("green"))
    {
      c = Color.green;
    }
    else if (s.equals("orange"))
    {
      c = Color.orange;
    }
    else if (s.equals("cyan"))
    {
      c = Color.cyan;
    }
    else if (s.equals("gray"))
    {
      c = Color.gray;
    }
    else
      c = Color.magenta;

  }

  public void display(Graphics g)
  {
    g.setColor(c);
    g.fillOval(xpos, ypos, circleWidth, circleHeight);
  }

  @Override
  public void mousePressed(MouseEvent e)
  {
    mouseClick = true;
  }

  @Override
  public void mouseReleased(MouseEvent e)
  {

  }

  @Override
  public void mouseEntered(MouseEvent e)
  {
  }

  @Override
  public void mouseExited(MouseEvent e)
  {
  }

  @Override
  public void mouseMoved(MouseEvent e)
  {
  }

  @Override
  public void mouseClicked(MouseEvent e)
  {
  }

  @Override
  public void mouseDragged(MouseEvent e)
  {
    if (mouseClick)
    {
      xpos = e.getX();
      ypos = e.getY();
    }

  }
}