【发布时间】:2014-12-17 13:03:05
【问题描述】:
我正在编写一个扫雷游戏。单击按钮时应显示数字 0,1 或 2,以显示相邻的地雷数量。我最近将布局更改为 gridlayout,从那时起,当我单击一个按钮时,我得到的只是“...”,除了发现一个将按钮更改为炸弹 gif 的地雷。
谁能告诉我如何在点击时恢复数字?
这里是创建按钮数组的代码:
JPanel gridPanel = new JPanel(new GridLayout(boardsize, boardsize));
buttons = new JButton[boardsize][boardsize];
mineBoard = new int[9][9];
for (int a = 0; a < boardsize; a++)
for (int b = 0; b < boardsize; b++) {
buttons[a][b] = new JButton("");
gridPanel.add(buttons[a][b]);
buttons[a][b].addMouseListener(new MouseListener(a,b));
setx(a);
sety(b);
settried(false);
setmine(false);
}
contentPane.add(gridPanel, BorderLayout.CENTER);
当用户点击按钮时:
// This method takes in an x and y value and defines what should happen when the user clicks there.
public void click(int row, int col) {
if(mineBoard[row][col] == Mine) {
buttons[row][col].setIcon( new ImageIcon( "images/bomb.gif" ) );
lose();
} else {
score += 1;
updatescore();
buttons[row][col].setText("" + numAdjMines(mineBoard, row, col));
mineBoard[row][col] = UncoveredEmpty;
buttons[row][col].setText(Character.toString(getUserChar(mineBoard[row][col])));
if(numAdjMines(mineBoard, row, col) == Empty) {
for(int dr = -1; dr <= 1; dr ++) {
for(int dc = -1; dc <= 1; dc++) {
if(row+dr >= 1 && row+dr < 10 &&
col+dc >= 1 && col+dc < 10) {
if(mineBoard[row+dr][col+dc] == Empty) {
click(row+dr,col+dc);
}
}
}
}
}
}
}
MouseLister 类:
//ACTION WHEN USER CLICKS ON A BUTTON
private class MouseListener extends MouseAdapter {
private int x = 0;
private int y = 0;
public MouseListener(int row, int col) {
this.x = row;
int i = 0;
this.y = col;
}
public void mouseClicked(MouseEvent e) {
if(e.getButton() == MouseEvent.BUTTON1) {
if((mineBoard[x][y] == Empty) && (Game.this.gamegoing == true)) {
Game.this.click(x, y);
} else if(mineBoard[x][y] == Mine) {
buttons[x][y].setIcon( new ImageIcon( "images/bomb.gif" ) );
Game.this.lose();
}} else if(e.getButton() == MouseEvent.BUTTON3) {
Game.this.buttons[x][y].setText("F");
}
}
}
【问题讨论】:
-
您是否尝试在
click方法的else中设置断点,看看是否达到了? -
我没有尝试过,但是,所有的游戏功能仍然有效,所以看起来如果可以区分数字,它只是没有返回它们。
标签: java arrays swing mouseclick-event