创建一个包含100个按钮，80个空按钮和20个随机宝藏按钮的网格布局 [英] Creating a grid layout that holds 100 buttons with 80 empty buttons and 20 random treasure buttons

问题描述

我们正在作为一个项目在课堂上开展寻宝游戏.下面是到目前为止的代码. 我需要将宝藏按钮"的位置随机化. 我的问题是: 我是否需要创建一个包含EmptyButton和TreasureButton的数组，然后在其上调用Random，或者是否可以在TreasureButton类中创建随机布局?

We are working on a Treasure Hunt game in class as a project. Below is the code that we have so far. I need to randomize where the Treasure Buttons are. My question is: Do I need to create an array that will hold EmptyButton and TreasureButton and then call Random on it or is there a way to create a random layout within the TreasureButton class?

到目前为止，这是我们的代码

Here is our code so far

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;
    }
}

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();
    }
}

推荐答案

您必须考虑MVC.

首先为您的宝贝创建模型.这可以是类Field的数组.

First create a model for your treasure. This could be an array of class Field. .

一个字段将代表它具有宝藏和状态(例如显示)的天气

A field would represent weather it has a treasure and a state (eg. revealed)

使用20个表示宝藏的字段填充数组.

Populate the array with the fields from which 20 are representing an treasure.

随机排列数组.

然后，您的视图将遍历数组并以用户友好的方式表示模型.为方便起见，您可以将字段实例传递给按钮，以在actionlistener中操作字段状态.

Your view will then iterate over the array and represents the model in a user friendly way. For ease you can pass the field instance to your button to manipulate the field state in your actionlistener.

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