我正在java中，在人机之间制作一个tic tac toe游戏。 我需要检查以确保玩家进行了有效的移动，例如玩家并没有试图在已被占用的广场上移动。
我尝试编写一个方法并从chick（）方法中调用它，或者在win（）中调用if，但它不起作用。
import javax.swing.*;
import java.awt.event.*;
import java.awt.*;
public class XOGAMEMAIN extends JFrame implements ActionListener {
private JButton [][]buttons = new JButton[3][3];
private JButton XButton = new JButton("play with X ");
private JButton OButton = new JButton("play with O");
private JButton CButton = new JButton("let computer start with X");
private JButton C1Button = new JButton("let computer start with O");
private JLabel statusLabel = new JLabel(" ");
private XOGAMEAI game = null;
private int human = 0;
private int computer = 0;
private boolean isPlay = false;
private String []chars=new String[]{"","X","O"};
private void setStatus(String s) {
statusLabel.setText(s);
}
private void setButtonsEnabled(boolean enabled) {
for(int i=0;i<3;i++)
for(int j=0;j<3;j++) {
buttons[i][j].setEnabled(enabled);
if(enabled) buttons[i][j].setText(".");
}
}
public XOGAMEMAIN() {
setTitle(" X/O Game ");
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setResizable(false);
JPanel centerPanel = new JPanel(new GridLayout(3,3));
Font font = new Font("Arial",Font.BOLD, 32);
for(int i=0;i<3;i++)
for(int j=0;j<3;j++) {
buttons[i][j] = new JButton(".");
buttons[i][j].setFont(font);
buttons[i][j].addActionListener(this);
buttons[i][j].setFocusable(false);
centerPanel.add(buttons[i][j]);
}
XButton.addActionListener(this);
OButton.addActionListener(this);
CButton.addActionListener(this);
C1Button.addActionListener(this);
JPanel northPanel = new JPanel();
northPanel.add(statusLabel);
JPanel southPanel = new JPanel();
southPanel.add(XButton);
southPanel.add(OButton);
southPanel.add(CButton);
southPanel.add(C1Button);
setStatus("wlc,to start chose X or O or let computer decide");
setButtonsEnabled(false);
add(northPanel,"North");
add(centerPanel,"Center");
add(southPanel,"South");
setSize(600,600);
setLocationRelativeTo(null);
}
public static void main(String []args) {
new XOGAMEMAIN().setVisible(true);
}
private void computerTurn1() { ////////// this method for computer ( when the human chose the computer buttons to start first ) with X or O
int []pos = game.nextMove(computer);
if(pos!=null) {
int i = pos[0];
int j = pos[1];
buttons[i][j].setText(chars[computer]);
game.setBoardValue(i,j,computer);
setStatus("computer did its move ");
}
checkState();
}
private void computerTurn() { // this method for computer movment( when the human chose (X,O)buttons to start ) human method==>(using click method) and after that(computer turn==> this method will run
int []pos = game.nextMove(computer);
if(pos!=null) {
int i = pos[0];
int j = pos[1];
buttons[i][j].setText(chars[computer]);
game.setBoardValue(i,j,computer);
setStatus("computer did its move , now your turn ");
}
checkState();
}
private void gameOver(String s) {
setStatus(s);
setButtonsEnabled(false);
isPlay = false;
}
private void checkState() {
if(game.isWin(human)) {
gameOver(" You've Won!");
}
if(game.isWin(computer)) {
gameOver("Sorry, You Lose!");
}
if(game.nextMove(human)==null && game.nextMove(computer)==null) {
gameOver(" Draw ");
}
}
private void click(int i,int j) { //// this method is for human , when he click any button
if(game.getBoardValue(i,j)==XOGAMEAI.EMPTY) {
buttons[i][j].setText(chars[human]);
game.setBoardValue(i,j,human);
checkState();
computerTurn();}
}
public void actionPerformed(ActionEvent event) { //// this is action event that is senseing any click from the human(every button click ==> go for a method==> this methods are declared before )
if(event.getSource()==C1Button) { /// event.getsourse mean ==> the click that human make is on C1 button ?
play4(); /// if yes go to method play4() ==> thats mean the computer will start first with O char
}
if(event.getSource()==CButton) { /// for computer to start first with X
play3();
}
if(event.getSource()==OButton) { ////////// human click to start first with O==> start play1 method
play1();}
else {
for(int i=0;i<3;i++) //// if this is not the first click ==> thats mean this will check in turn 2 for human for example , put not the first 1
for(int j=0;j<3;j++) ////it will go for method click() directly for any of the 9 buttons choices
if(event.getSource()==buttons[i][j]) ///
click(i,j); }
////
if(event.getSource()==XButton) { // the same here but the human has chose Xbutton to start first
play();
}else {
for(int i=0;i<3;i++)
for(int j=0;j<3;j++)
if(event.getSource()==buttons[i][j])
click(i,j);
}
}
private void play4() { //// this is play4() method , its happened when Computer supposed to start first with O
game = new XOGAMEAI();
human = XOGAMEAI.ONE; // human is int number=0 , now the is Matrix defined which include "","x","O" , human=o ==> char "", human=ONE ==>char X , human=TWO ==>char O
computer = XOGAMEAI.TWO; // ///
setButtonsEnabled(true); ///
isPlay = true;
computerTurn1();
///
}
private void play3() { //// for Computer to start first with X
game = new XOGAMEAI();
human = XOGAMEAI.TWO; //
computer = XOGAMEAI.ONE; // ///
setButtonsEnabled(true); ///
isPlay = true;
computerTurn1();
///
}
private void play1() { //// for O
game = new XOGAMEAI();
human = XOGAMEAI.TWO; //
computer = XOGAMEAI.ONE; //
setStatus("Your Turn"); ///
setButtonsEnabled(true); ///
isPlay = true; ///
} ////
private void play() { ////// for X
game = new XOGAMEAI();
human = XOGAMEAI.ONE;
computer = XOGAMEAI.TWO;
setStatus("Your Turn");
setButtonsEnabled(true);
isPlay = true;
}
public static class XOGAMEAI {
/* the board */
private int board[][];
/* empty */
public static final int EMPTY = 0;
/* player one */
public static final int ONE = 1;
/* player two */
public static final int TWO = 2;
public XOGAMEAI() {
board = new int[3][3];
}
/* get the board value for position (i,j) */
public int getBoardValue(int i,int j) {
if(i < 0 || i >= 3) return EMPTY;
if(j < 0 || j >= 3) return EMPTY;
return board[i][j];
}
/* set the board value for position (i,j) */
public void setBoardValue(int i,int j,int token) {////////////////\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\
if(i < 0 || i >= 3) return;
if(j < 0 || j >= 3) return;
board[i][j] = token;
}
/* calculate the winning move for current token */
public int []nextWinningMove(int token) {
for(int i=0;i<3;i++)
for(int j=0;j<3;j++)
if(getBoardValue(i, j)==EMPTY) {
board[i][j] = token;
boolean win = isWin(token);
board[i][j] = EMPTY;
if(win) return new int[]{i,j};
}
return null;
}
public int inverse(int token) {
return token==ONE ? TWO : ONE;
}
/* calculate the best move for current token */
public int []nextMove(int token) {
/* lucky position in the center of board*/
if(getBoardValue(1, 1)==EMPTY) return new int[]{1,1};
/* if we can move on the next turn */
int winMove[] = nextWinningMove(token);
if(winMove!=null) return winMove;
/* choose the move that prevent enemy to win */
for(int i=0;i<3;i++)
for(int j=0;j<3;j++)
if(getBoardValue(i, j)==EMPTY)
{
board[i][j] = token;
boolean ok = nextWinningMove(inverse(token)) == null;
board[i][j] = EMPTY;
if(ok) return new int[]{i,j};
}
/* choose available move */
for(int i=0;i<3;i++)
for(int j=0;j<3;j++)
if(getBoardValue(i, j)==EMPTY)
return new int[]{i,j};
/* no move is available */
return null;
}
/* determine if current token is win or not win */
public boolean isWin(int token) {
final int DI[]={-1,0,1,1};
final int DJ[]={1,1,1,0};
for(int i=0;i<3;i++)
for(int j=0;j<3;j++) {
// we skip if the token in position(i,j) not equal current token */
if(getBoardValue(i, j)!=token){
continue;
}
for(int k=0;k<4;k++) {
int ctr = 0;
while(getBoardValue(i+DI[k]*ctr, j+DJ[k]*ctr)==token) ctr++;
if(ctr==3) return true;
}
}
return false;
}
}
}
答案 0 :(得分：0)
在click(int i, int j)方法中，您检查条件if(game.getBoardValue(i,j)==XOGAMEAI.EMPTY) - 不能做您想做的事情吗？
答案 1 :(得分：0)
好的，我发现了这个bug，它在ActionPerformed方法中。问题是，你写了
if(xbutton pressed){...}
else{click()}
if(ybutton pressed){...}
else{click()}
两个else语句都已执行。这是固定代码：
public void actionPerformed(ActionEvent event) { //// this is action event
//// that is senseing
//// any click from the
//// human(every button
//// click ==> go for a
//// method==> this
//// methods are
//// declared before )
if (event.getSource() == C1Button) { /// event.getsourse mean ==> the
/// click that human make is on
/// C1 button ?
play4(); /// if yes go to method play4() ==> thats mean the computer
/// will start first with O char
} else if (event.getSource() == CButton) { /// for computer to start
/// first with
/// X
play3();
}
else if (event.getSource() == OButton) { ////////// human click to start
////////// first with O==> start
////////// play1 method
play1();
} else if (event.getSource() == XButton) { // the same here but the
// human has
// chose Xbutton to start first
play();
} else {
for (int i = 0; i < 3; i++) //// if this is not the first click ==>
//// thats mean this will check in turn
//// 2 for human for example , put not
//// the first 1
for (int j = 0; j < 3; j++) //// it will go for method click()
//// directly for any of the 9
//// buttons choices
if (event.getSource() == buttons[i][j]) ///
click(i, j);
}
}