Java 创建包含100个按钮、80个空按钮和20个随机按钮的网格布局
我们正在课堂上做一个寻宝游戏作为一个项目。下面是我们到目前为止的代码。 我需要随机化宝藏按钮的位置。 我的问题是: 我是否需要创建一个数组来保存EmptyButton和Button,然后对其调用Random,还是有办法在Button类中创建一个随机布局 这是到目前为止我们的代码Java 创建包含100个按钮、80个空按钮和20个随机按钮的网格布局,java,random,jbutton,Java,Random,Jbutton,我们正在课堂上做一个寻宝游戏作为一个项目。下面是我们到目前为止的代码。 我需要随机化宝藏按钮的位置。 我的问题是: 我是否需要创建一个数组来保存EmptyButton和Button,然后对其调用Random,还是有办法在Button类中创建一个随机布局 这是到目前为止我们的代码 public class TreasureGame { // has-a number of tries private int numberOfTriesLeft = 50; //has-a n
public class TreasureGame
{
// has-a number of tries
private int numberOfTriesLeft = 50;
//has-a number of hidden treasure
private int numberStillHidden = 20;
// Purpose: Subtract 1 try for every attempt taken by the player
public void reduceTriesLeft()
{
numberOfTriesLeft -= 1;
}
public void reduceNumberStillHidden()
{
numberStillHidden -=1;
}
public int getNumberStillHidden()
{
return numberStillHidden;
}
public int getNumberOfTriesLeft()
{
return numberOfTriesLeft;
}
}
你必须从MVC的角度来思考 首先为你的宝贝创建一个模型。这可能是类字段的数组 一块田地代表着它是否拥有宝藏和状态(如已揭示) 用20代表宝藏的字段填充数组 洗牌数组
然后,视图将在数组上迭代,并以用户友好的方式表示模型。为了方便起见,您可以将字段实例传递给按钮,以操纵actionlistener中的字段状态。答案主要基于观点。最好维护一个
列表按钮
,并将空按钮
和空按钮
存储在其中。无论何时需要随机化,都可以使用Collections.shuffle(按钮)
进行随机化。由于操作保持不变,您不需要每次都创建按钮。只需将其洗牌并按迭代顺序显示在网格中。这将违反MVC模式。model和view将融合在一起;)
import java.awt.*;
import javax.swing.*;
import java.util.Random;
public class TreasureGameView extends JFrame
{
// has-a TreasureGame
private TreasureGame treasureGame;
//has-a triesLeftField
private JTextField triesLeftField;
//has-a treasures left field
private JTextField treasuresLeftField;
private JTextField lastMoveField;
public TreasureGameView(TreasureGame newTreasureGame)
{
treasureGame = newTreasureGame;
setTitle("Treasure Hunt");
setSize(800, 500);
setLayout(new BorderLayout());
JPanel gridPanel = new JPanel();
gridPanel.setLayout(new GridLayout(10, 10));
add(gridPanel, BorderLayout.CENTER);
for(int counter=0; counter<treasureGame.getNumberStillHidden(); counter++)
{
gridPanel.add(new TreasureButton(treasureGame, this));
}
for(int counter=0; counter<(10*10)-treasureGame.getNumberStillHidden(); counter++)
{
gridPanel.add(new EmptyButton(treasureGame, this));
}
JPanel triesLeftPanel = new JPanel();
JLabel triesLeftLabel = new JLabel("Tries left:");
triesLeftPanel.add(triesLeftLabel);
triesLeftField = new JTextField("" + treasureGame.getNumberOfTriesLeft());
triesLeftPanel.add(triesLeftField);
JLabel treasuresLeftLabel = new JLabel("Treasures left:");
triesLeftPanel.add(treasuresLeftLabel);
treasuresLeftField = new JTextField("" + treasureGame.getNumberStillHidden());
triesLeftPanel.add(treasuresLeftField);
add(triesLeftPanel, BorderLayout.WEST);
JPanel lastMovePanel = new JPanel();
JLabel lastMoveLabel = new JLabel("Your last move was: ");
lastMovePanel.add(lastMoveLabel);
lastMoveField = new JTextField("" );
lastMovePanel.add(lastMoveField);
add(lastMovePanel, BorderLayout.SOUTH);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setVisible(true);
}
//Purpose; Update Value of triesLeftField
public void updateUI()
{
triesLeftField.setText("" + treasureGame.getNumberOfTriesLeft());
treasuresLeftField.setText("" + treasureGame.getNumberStillHidden());
}
}
import javax.swing.*;
public class EmptyButton extends JButton
{
//has-a TreasureGame
private TreasureGame game;
//has-a TreasureGameView
private TreasureGameView gameView;
public EmptyButton(TreasureGame game, TreasureGameView gameView)
{
super();
this.game = game;
this.gameView = gameView;
//setText("?");
addActionListener(new EmptyButtonListener(this, game, gameView));
}
}
public class TreasureButton extends EmptyButton
{
public TreasureButton(TreasureGame game, TreasureGameView gameView)
{
super(game, gameView);
//setText("T");
addActionListener(new TreasureButtonListener(this, game, gameView));
}
}
import java.awt.event.*;
public class EmptyButtonListener implements ActionListener
{
private EmptyButton button;
//has-a TreasureGame
private TreasureGame game;
//has-a TreasureGameView
private TreasureGameView gameView;
public EmptyButtonListener(EmptyButton button, TreasureGame game, TreasureGameView gameView)
{
this.game = game;
this.button = button;
this.gameView = gameView;
}
public void actionPerformed(ActionEvent e)
{
//button.setText("X");
button.setEnabled(false);
game.reduceTriesLeft();
gameView.updateUI();
}
}
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class TreasureButtonListener implements ActionListener
{
// Has-a TreasureButton
private TreasureButton button;
private TreasureGame game;
private TreasureGameView gameView;
public TreasureButtonListener(TreasureButton button, TreasureGame game, TreasureGameView gameView)
{
this.button = button;
this.game = game;
this.gameView = gameView;
}
public void actionPerformed(ActionEvent e)
{
button.setText("$");
game.reduceNumberStillHidden();
gameView.updateUI();
}
}