这是我的滑块益智游戏。到目前为止,它只能做3x3游戏。当我尝试传递电路板的变量l和w(长度和宽度)时,它不起作用。仅当我将变量ROWS和COLS设置为final时才有效。当我尝试更改它时,会出现错误。我不确定该怎么做,我们将不胜感激。

当前,用户可以输入当前无法执行的值。游戏开始时,将生成一个3x3的棋盘。用户可以使用其他混乱的棋盘重新启动游戏,但是解决棋盘的按钮和将棋盘重置为原始状态的按钮尚不起作用。

public class SlidePuzzle {

public static void main(String[] args)
{

    JFrame window = new JFrame("Slide Puzzle");
    window.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    String length = JOptionPane.showInputDialog("Length");
    String width = JOptionPane.showInputDialog("Width");
    int l = Integer.parseInt(length);
    int w = Integer.parseInt(width);
    window.setContentPane(new SlidePuzzleGUI());
    window.pack();
    window.show();
    window.setResizable(false);

}
}

public class SlidePuzzleGUI extends JPanel
{

private GraphicsPanel    _puzzleGraphics;
private SlidePuzzleModel _puzzleModel = new SlidePuzzleModel();


此类包含滑块拼图的GUI

public SlidePuzzleGUI() {

    JButton newGameButton = new JButton("New Game");
    JButton resetButton = new JButton("Reset");
    JButton solveButton = new JButton("I GIVE UP :(");

    resetButton.addActionListener(new ResetAction());
    newGameButton.addActionListener(new NewGameAction());


    JPanel controlPanel = new JPanel();
    controlPanel.setLayout(new FlowLayout());
    controlPanel.add(newGameButton);
    controlPanel.add(resetButton);
    controlPanel.add(solveButton);


    _puzzleGraphics = new GraphicsPanel();

    this.setLayout(new BorderLayout());
    this.add(controlPanel, BorderLayout.NORTH);
    this.add(_puzzleGraphics, BorderLayout.CENTER);
}


这是图形面板

class GraphicsPanel extends JPanel implements MouseListener {
    private static final int ROWS = 3;
    private static final int COLS = 3;

    private static final int CELL_SIZE = 80;
    private Font _biggerFont;



    public GraphicsPanel() {
        _biggerFont = new Font("SansSerif", Font.BOLD, CELL_SIZE/2);
        this.setPreferredSize(
               new Dimension(CELL_SIZE * COLS, CELL_SIZE*ROWS));
        this.setBackground(Color.black);
        this.addMouseListener(this);
    }



    public void paintComponent(Graphics g) {
        super.paintComponent(g);
        for (int r=0; r<ROWS; r++) {
            for (int c=0; c<COLS; c++) {
                int x = c * CELL_SIZE;
                int y = r * CELL_SIZE;
                String text = _puzzleModel.getFace(r, c);
                if (text != null) {
                    g.setColor(Color.gray);
                    g.fillRect(x+2, y+2, CELL_SIZE-4, CELL_SIZE-4);
                    g.setColor(Color.black);
                    g.setFont(_biggerFont);
                    g.drawString(text, x+20, y+(3*CELL_SIZE)/4);
                }
            }
        }
    }



    public void mousePressed(MouseEvent e) {

        int col = e.getX()/CELL_SIZE;
        int row = e.getY()/CELL_SIZE;

        if (!_puzzleModel.moveTile(row, col)) {

            Toolkit.getDefaultToolkit().beep();
        }

        this.repaint();
    }



    public void mouseClicked (MouseEvent e) {}
    public void mouseReleased(MouseEvent e) {}
    public void mouseEntered (MouseEvent e) {}
    public void mouseExited  (MouseEvent e) {}
}

public class NewGameAction implements ActionListener {
    public void actionPerformed(ActionEvent e) {
        _puzzleModel.reset();
        _puzzleGraphics.repaint();
    }
}
public class ResetAction implements ActionListener {

    @Override
    public void actionPerformed(ActionEvent e) {
        _puzzleModel.tryAgain();
        _puzzleGraphics.repaint();

    }

}

public class solveAction implements ActionListener
{

    @Override
    public void actionPerformed(ActionEvent e)
        {
            _puzzleModel.solve();
            _puzzleGraphics.repaint();

        }

    }
}
public class SlidePuzzleModel {
private static final int ROWS = 3;
private static final int COLS = 3;

private Tile[][] _contents;
private Tile[][] _solved;
private Tile     _emptyTile;



public SlidePuzzleModel() {
    _contents = new Tile[ROWS][COLS];
    reset();
}



String getFace(int row, int col) {
    return _contents[row][col].getFace();
}



public void reset() {
    for (int r=0; r<ROWS; r++) {
        for (int c=0; c<COLS; c++) {
            _contents[r][c] = new Tile(r, c, "" + (r*COLS+c+1));
        }
    }

    _emptyTile = _contents[ROWS-1][COLS-1];
    _emptyTile.setFace(null);


    for (int r=0; r<ROWS; r++) {
        for (int c=0; c<COLS; c++) {
            exchangeTiles(r, c, (int)(Math.random()*ROWS)
                              , (int)(Math.random()*COLS));
        }
    }
}

public void tryAgain()
{

}

public void solve()
{
    for (int i = 1; i < ROWS+1;i++)
    {
        for(int j = 1; j < COLS+1;j++)
        {
            exchangeTiles(i, j, i, j);
        }
    }
}


public boolean moveTile(int r, int c) {

    return checkEmpty(r, c, -1, 0) || checkEmpty(r, c, 1, 0)
        || checkEmpty(r, c, 0, -1) || checkEmpty(r, c, 0, 1);
}

private boolean checkEmpty(int r, int c, int rdelta, int cdelta) {
    int rNeighbor = r + rdelta;
    int cNeighbor = c + cdelta;

    if (isLegalRowCol(rNeighbor, cNeighbor)
              && _contents[rNeighbor][cNeighbor] == _emptyTile) {
        exchangeTiles(r, c, rNeighbor, cNeighbor);
        return true;
    }
    return false;
}

public boolean isLegalRowCol(int r, int c) {
    return r>=0 && r<ROWS && c>=0 && c<COLS;
}



private void exchangeTiles(int r1, int c1, int r2, int c2) {
    Tile temp = _contents[r1][c1];
    _contents[r1][c1] = _contents[r2][c2];
    _contents[r2][c2] = temp;
}

public boolean isGameOver() {
    for (int r=0; r<ROWS; r++) {
        for (int c=0; c<ROWS; c++) {
            Tile trc = _contents[r][c];
            return trc.isInFinalPosition(r, c);
        }
    }


    return true;
}
}

class Tile {

private int _row;
private int _col;
private String _face;

public Tile(int row, int col, String face) {
    _row = row;
    _col = col;
    _face = face;
}
public void setFace(String newFace) {
    _face = newFace;
}
public String getFace() {
    return _face;
}
public boolean isInFinalPosition(int r, int c) {
    return r==_row && c==_col;
}
}


我该如何做,以便用户可以指定游戏板的尺寸?

编辑
    公共类SlidePuzzle {

public static void main(String[] args)
{

    JFrame window = new JFrame("Slide Puzzle");
    window.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    String length = JOptionPane.showInputDialog("Length");
    String width = JOptionPane.showInputDialog("Width");
    int l = Integer.parseInt(length);
    int w = Integer.parseInt(width);
    window.setContentPane(new SlidePuzzleGUI());
    window.pack();
    window.show();
    window.setResizable(false);

}


}
     公共类SlidePuzzleGUI扩展了JPanel
     {

private GraphicsPanel    _puzzleGraphics;
private SlidePuzzleModel _puzzleModel = new SlidePuzzleModel();




public SlidePuzzleGUI(int l, int w) {

    JButton newGameButton = new JButton("New Game");
    JButton resetButton = new JButton("Reset");
    JButton solveButton = new JButton("I GIVE UP :(");

    resetButton.addActionListener(new ResetAction());
    newGameButton.addActionListener(new NewGameAction());


    JPanel controlPanel = new JPanel();
    controlPanel.setLayout(new FlowLayout());
    controlPanel.add(newGameButton);
    controlPanel.add(resetButton);
    controlPanel.add(solveButton);


    _puzzleGraphics = new GraphicsPanel(l,w);

    this.setLayout(new BorderLayout());
    this.add(controlPanel, BorderLayout.NORTH);
    this.add(_puzzleGraphics, BorderLayout.CENTER);
}

class GraphicsPanel extends JPanel implements MouseListener {
    private int ROWS;
    private int COLS;

    private static final int CELL_SIZE = 80;
    private Font _biggerFont;



    public GraphicsPanel(int l, int w) {
        _biggerFont = new Font("SansSerif", Font.BOLD, CELL_SIZE/2);
        this.setPreferredSize(
               new Dimension(CELL_SIZE * COLS, CELL_SIZE*ROWS));
        this.setBackground(Color.black);
        this.addMouseListener(this);
        ROWS = l;
        COLS = w;
    }



    public void paintComponent(Graphics g) {
        super.paintComponent(g);
        for (int r=0; r<ROWS; r++) {
            for (int c=0; c<COLS; c++) {
                int x = c * CELL_SIZE;
                int y = r * CELL_SIZE;
                String text = _puzzleModel.getFace(r, c);
                if (text != null) {
                    g.setColor(Color.gray);
                    g.fillRect(x+2, y+2, CELL_SIZE-4, CELL_SIZE-4);
                    g.setColor(Color.black);
                    g.setFont(_biggerFont);
                    g.drawString(text, x+20, y+(3*CELL_SIZE)/4);
                }
            }
        }
    }



    public void mousePressed(MouseEvent e) {

        int col = e.getX()/CELL_SIZE;
        int row = e.getY()/CELL_SIZE;

        if (!_puzzleModel.moveTile(row, col)) {

            Toolkit.getDefaultToolkit().beep();
        }

        this.repaint();
    }



    public void mouseClicked (MouseEvent e) {}
    public void mouseReleased(MouseEvent e) {}
    public void mouseEntered (MouseEvent e) {}
    public void mouseExited  (MouseEvent e) {}
}

public class NewGameAction implements ActionListener {
    public void actionPerformed(ActionEvent e) {
        _puzzleModel.reset();
        _puzzleGraphics.repaint();
    }
}
public class ResetAction implements ActionListener {

    @Override
    public void actionPerformed(ActionEvent e) {
        _puzzleModel.tryAgain();
        _puzzleGraphics.repaint();

    }

}

public class solveAction implements ActionListener
{

    @Override
    public void actionPerformed(ActionEvent e)
        {
            _puzzleModel.solve();
            _puzzleGraphics.repaint();

        }

    }
}

最佳答案

您的键类没有设置器方法或构造函数参数,这些方法不允许您将长度和宽度传递给它们。如果要更改其状态的这一方面,则它们必须具有执行此操作的机制。当前,您的GraphicsPanel进行了硬编码以使用ROWS和COLS常量,这将很难更改。而是将所有这些硬编码替换为变量,并确保它们在默认构造函数中默认为ROWS和COLS常量,而且还提供了一个非默认构造函数,使程序员可以传递不同的行和列设置。



编辑
你必须


使用构造函数参数设置类字段,以便整个类可以使用这些值,而不仅仅是构造函数。
调用适当的构造函数,即需要参数的构造函数!




public MyConstructor(int x, int y) {
   this.x = x;
   this.y = y;
}

关于java - 滑块难题,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/19128864/

10-14 05:38