Modify the TicTacToeServer class to test for a win, loss or draw after each move
ID: 3717386 • Letter: M
Question
Modify the TicTacToeServer class to test for a win, loss or draw after each move. Send
a message to each client that indicates the result of the game when the game is over.
// Server side of client/server Tic-Tac-Toe program.
import java.awt.BorderLayout;
import java.net.ServerSocket;
import java.net.Socket;
import java.io.IOException;
import java.util.Formatter;
import java.util.Scanner;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.locks.Lock;
import java.util.concurrent.locks.ReentrantLock;
import java.util.concurrent.locks.Condition;
import javax.swing.JFrame;
import javax.swing.JTextArea;
import javax.swing.SwingUtilities;
public class TicTacToeServer extends JFrame
{
private String[] board = new String[ 9 ]; // tic-tac-toe board
private JTextArea outputArea; // for outputting moves
private Player[] players; // array of Players
private ServerSocket server; // server socket to connect with clients
private int currentPlayer; // keeps track of player with current move
private final static int PLAYER_X = 0; // constant for first player
private final static int PLAYER_O = 1; // constant for second player
private final static String[] MARKS = { "X", "O" }; // array of marks
private ExecutorService runGame; // will run players
private Lock gameLock; // to lock game for synchronization
private Condition otherPlayerConnected; // to wait for other player
private Condition otherPlayerTurn; // to wait for other player's turn
// set up tic-tac-toe server and GUI that displays messages
public TicTacToeServer()
{
super( "Tic-Tac-Toe Server" ); // set title of window
// create ExecutorService with a thread for each player
runGame = Executors.newFixedThreadPool( 2 );
gameLock = new ReentrantLock(); // create lock for game
// condition variable for both players being connected
otherPlayerConnected = gameLock.newCondition();
// condition variable for the other player's turn
otherPlayerTurn = gameLock.newCondition();
for ( int i = 0; i < 9; i++ )
board[ i ] = new String( "" ); // create tic-tac-toe board
players = new Player[ 2 ]; // create array of players
currentPlayer = PLAYER_X; // set current player to first player
try
{
server = new ServerSocket( 12345, 2 ); // set up ServerSocket
} // end try
catch ( IOException ioException )
{
ioException.printStackTrace();
System.exit( 1 );
} // end catch
outputArea = new JTextArea(); // create JTextArea for output
add( outputArea, BorderLayout.CENTER );
outputArea.setText( "Server awaiting connections " );
setSize( 300, 300 ); // set size of window
setVisible( true ); // show window
} // end TicTacToeServer constructor
// wait for two connections so game can be played
public void execute()
{
// wait for each client to connect
for ( int i = 0; i < players.length; i++ )
{
try // wait for connection, create Player, start runnable
{
players[ i ] = new Player( server.accept(), i );
runGame.execute( players[ i ] ); // execute player runnable
} // end try
catch ( IOException ioException )
{
ioException.printStackTrace();
System.exit( 1 );
} // end catch
} // end for
gameLock.lock(); // lock game to signal player X's thread
try
{
players[ PLAYER_X ].setSuspended( false ); // resume player X
otherPlayerConnected.signal(); // wake up player X's thread
} // end try
finally
{
gameLock.unlock(); // unlock game after signalling player X
} // end finally
} // end method execute
// display message in outputArea
private void displayMessage( final String messageToDisplay )
{
// display message from event-dispatch thread of execution
SwingUtilities.invokeLater(
new Runnable()
{
public void run() // updates outputArea
{
outputArea.append( messageToDisplay ); // add message
} // end method run
} // end inner class
); // end call to SwingUtilities.invokeLater
} // end method displayMessage
// determine if move is valid
public boolean validateAndMove( int location, int player )
{
// while not current player, must wait for turn
while ( player != currentPlayer )
{
gameLock.lock(); // lock game to wait for other player to go
try
{
otherPlayerTurn.await(); // wait for player's turn
} // end try
catch ( InterruptedException exception )
{
exception.printStackTrace();
} // end catch
finally
{
gameLock.unlock(); // unlock game after waiting
} // end finally
} // end while
// if location not occupied, make move
if ( !isOccupied( location ) )
{
board[ location ] = MARKS[ currentPlayer ]; // set move on board
currentPlayer = ( currentPlayer + 1 ) % 2; // change player
// let new current player know that move occurred
players[ currentPlayer ].otherPlayerMoved( location );
gameLock.lock(); // lock game to signal other player to go
try
{
otherPlayerTurn.signal(); // signal other player to continue
} // end try
finally
{
gameLock.unlock(); // unlock game after signaling
} // end finally
return true; // notify player that move was valid
} // end if
else // move was not valid
return false; // notify player that move was invalid
} // end method validateAndMove
// determine whether location is occupied
public boolean isOccupied( int location )
{
if ( board[ location ].equals( MARKS[ PLAYER_X ] ) ||
board [ location ].equals( MARKS[ PLAYER_O ] ) )
return true; // location is occupied
else
return false; // location is not occupied
} // end method isOccupied
// place code in this method to determine whether game over
public boolean isGameOver()
{
return false; // this is left as an exercise
} // end method isGameOver
// private inner class Player manages each Player as a runnable
private class Player implements Runnable
{
private Socket connection; // connection to client
private Scanner input; // input from client
private Formatter output; // output to client
private int playerNumber; // tracks which player this is
private String mark; // mark for this player
private boolean suspended = true; // whether thread is suspended
// set up Player thread
public Player( Socket socket, int number )
{
playerNumber = number; // store this player's number
mark = MARKS[ playerNumber ]; // specify player's mark
connection = socket; // store socket for client
try // obtain streams from Socket
{
input = new Scanner( connection.getInputStream() );
output = new Formatter( connection.getOutputStream() );
} // end try
catch ( IOException ioException )
{
ioException.printStackTrace();
System.exit( 1 );
} // end catch
} // end Player constructor
// send message that other player moved
public void otherPlayerMoved( int location )
{
output.format( "Opponent moved " );
output.format( "%d ", location ); // send location of move
output.flush(); // flush output
} // end method otherPlayerMoved
// control thread's execution
public void run()
{
// send client its mark (X or O), process messages from client
try
{
displayMessage( "Player " + mark + " connected " );
output.format( "%s ", mark ); // send player's mark
output.flush(); // flush output
// if player X, wait for another player to arrive
if ( playerNumber == PLAYER_X )
{
output.format( "%s %s", "Player X connected",
"Waiting for another player " );
output.flush(); // flush output
gameLock.lock(); // lock game to wait for second player
try
{
while( suspended )
{
otherPlayerConnected.await(); // wait for player O
} // end while
} // end try
catch ( InterruptedException exception )
{
exception.printStackTrace();
} // end catch
finally
{
gameLock.unlock(); // unlock game after second player
} // end finally
// send message that other player connected
output.format( "Other player connected. Your move. " );
output.flush(); // flush output
} // end if
else
{
output.format( "Player O connected, please wait " );
output.flush(); // flush output
} // end else
// while game not over
while ( !isGameOver() )
{
int location = 0; // initialize move location
if ( input.hasNext() )
location = input.nextInt(); // get move location
// check for valid move
if ( validateAndMove( location, playerNumber ) )
{
displayMessage( " location: " + location );
output.format( "Valid move. " ); // notify client
output.flush(); // flush output
} // end if
else // move was invalid
{
output.format( "Invalid move, try again " );
output.flush(); // flush output
} // end else
} // end while
} // end try
finally
{
try
{
connection.close(); // close connection to client
} // end try
catch ( IOException ioException )
{
ioException.printStackTrace();
System.exit( 1 );
} // end catch
} // end finally
} // end method run
// set whether or not thread is suspended
public void setSuspended( boolean status )
{
suspended = status; // set value of suspended
} // end method setSuspended
} // end class Player
} // end class TicTacToeServer
Explanation / Answer
Programming code :
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.io.*;
import java.util.*;
public class TicTacToe implements ActionListener {
final String VERSION = "1.0";
//Setting up ALL the variables
JFrame window = new JFrame("Tic-Tac-Toe " + VERSION);
JMenuBar mnuMain = new JMenuBar();
JMenuItem mnuNewGame = new JMenuItem("New Game"),
mnuInstruction = new JMenuItem("Instructions"),
mnuExit = new JMenuItem("Exit"),
mnuAbout = new JMenuItem("About");
JButton btn1v1 = new JButton("Player vs Player"),
btn1vCPU = new JButton("Player vs CPU"),
btnBack = new JButton("<--back");
JButton btnEmpty[] = new JButton[10];
JPanel pnlNewGame = new JPanel(),
pnlNorth = new JPanel(),
pnlSouth = new JPanel(),
pnlTop = new JPanel(),
pnlBottom = new JPanel(),
pnlPlayingField = new JPanel();
JLabel lblTitle = new JLabel("Tic-Tac-Toe");
JTextArea txtMessage = new JTextArea();
final int winCombo[][] = new int[][] {
{1, 2, 3}, {1, 4, 7}, {1, 5, 9},
{4, 5, 6}, {2, 5, 8}, {3, 5, 7},
{7, 8, 9}, {3, 6, 9}
/*Horizontal Wins*/ /*Vertical Wins*/ /*Diagonal Wins*/
};
final int X = 412, Y = 268, color = 190;
boolean inGame = false;
boolean win = false;
boolean btnEmptyClicked = false;
String message;
int turn = 1;
int wonNumber1 = 1, wonNumber2 = 1, wonNumber3 = 1;
public TicTacToe() { //Setting game properties and layout and sytle...
//Setting window properties:
window.setSize(X, Y);
window.setLocation(450, 260);
window.setResizable(false);
window.setLayout(new BorderLayout());
window.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
//Setting Panel layouts and properties
pnlNewGame.setLayout(new GridLayout(2, 1, 2, 10));
pnlNorth.setLayout(new FlowLayout(FlowLayout.CENTER));
pnlSouth.setLayout(new FlowLayout(FlowLayout.CENTER));
pnlNorth.setBackground(new Color(color-20, color-20, color-20));
pnlSouth.setBackground(new Color(color, color, color));
pnlTop.setBackground(new Color(color, color, color));
pnlBottom.setBackground(new Color(color, color, color));
pnlTop.setLayout(new FlowLayout(FlowLayout.CENTER));
pnlBottom.setLayout(new FlowLayout(FlowLayout.CENTER));
pnlNewGame.setBackground(Color.blue);
//Adding menu items to menu bar
mnuMain.add(mnuNewGame);
mnuMain.add(mnuInstruction);
mnuMain.add(mnuAbout);
mnuMain.add(mnuExit);//---->Menu Bar Complete
//Adding buttons to NewGame panel
pnlNewGame.add(btn1v1);
pnlNewGame.add(btn1vCPU);
//Adding Action Listener to all the Buttons and Menu Items
mnuNewGame.addActionListener(this);
mnuExit.addActionListener(this);
mnuInstruction.addActionListener(this);
mnuAbout.addActionListener(this);
btn1v1.addActionListener(this);
btn1vCPU.addActionListener(this);
btnBack.addActionListener(this);
//Setting up the playing field
pnlPlayingField.setLayout(new GridLayout(3, 3, 2, 2));
pnlPlayingField.setBackground(Color.black);
for(int i=1; i<=9; i++) {
btnEmpty[i] = new JButton();
btnEmpty[i].setBackground(new Color(220, 220, 220));
btnEmpty[i].addActionListener(this);
pnlPlayingField.add(btnEmpty[i]);
}
//Adding everything needed to pnlNorth and pnlSouth
pnlNorth.add(mnuMain);
pnlSouth.add(lblTitle);
//Adding to window and Showing window
window.add(pnlNorth, BorderLayout.NORTH);
window.add(pnlSouth, BorderLayout.CENTER);
window.setVisible(true);
}
//-------------------START OF ACTION PERFORMED CLASS-------------------------//
public void actionPerformed(ActionEvent click) {
Object source = click.getSource();
for(int i=1; i<=9; i++) {
if(source == btnEmpty[i] && turn < 10) {
btnEmptyClicked = true;
if(!(turn % 2 == 0))
btnEmpty[i].setText("X");
else
btnEmpty[i].setText("O");
btnEmpty[i].setEnabled(false);
pnlPlayingField.requestFocus();
turn++;
}
}
if(btnEmptyClicked) {
checkWin();
btnEmptyClicked = false;
}
if(source == mnuNewGame) {
clearPanelSouth();
pnlSouth.setLayout(new GridLayout(2, 1, 2, 5));
pnlTop.add(pnlNewGame);
pnlBottom.add(btnBack);
pnlSouth.add(pnlTop);
pnlSouth.add(pnlBottom);
}
else if(source == btn1v1) {
if(inGame) {
int option = JOptionPane.showConfirmDialog(null, "If you start a new game," +
"your current game will be lost..." + " " +
"Are you sure you want to continue?",
"Quit Game?" ,JOptionPane.YES_NO_OPTION);
if(option == JOptionPane.YES_OPTION) {
inGame = false;
}
}
if(!inGame) {
btnEmpty[wonNumber1].setBackground(new Color(220, 220, 220));
btnEmpty[wonNumber2].setBackground(new Color(220, 220, 220));
btnEmpty[wonNumber3].setBackground(new Color(220, 220, 220));
turn = 1;
for(int i=1; i<10; i++) {
btnEmpty[i].setText("");
btnEmpty[i].setEnabled(true);
}
win = false;
showGame();
}
}
else if(source == btn1vCPU) {
JOptionPane.showMessageDialog(null, "Coming Soon!!");
}
else if(source == mnuExit) {
int option = JOptionPane.showConfirmDialog(null, "Are you sure you want to exit?",
"Exit Game" ,JOptionPane.YES_NO_OPTION);
if(option == JOptionPane.YES_OPTION)
System.exit(0);
}
else if(source == mnuInstruction || source == mnuAbout) {
clearPanelSouth();
String message = "";
txtMessage.setBackground(new Color(color, color, color));
if(source == mnuInstruction) {
message = "Instructions: " +
"Your goal is to be the first player to get 3 X's or O's in a " +
"row. (horizontally, diagonally, or vertically)";
} else {
message = "About: " +
"Title: Tic-Tac-Toe " +
"Author: Blmaster " +
"Version: " + VERSION + " ";
}
txtMessage.setEditable(false);
txtMessage.setText(message);
pnlSouth.setLayout(new GridLayout(2, 1, 2, 5));
pnlTop.add(txtMessage);
pnlBottom.add(btnBack);
pnlSouth.add(pnlTop);
pnlSouth.add(pnlBottom);
}
else if(source == btnBack) {
if(inGame)
showGame();
else {
clearPanelSouth();
pnlSouth.setLayout(new FlowLayout(FlowLayout.CENTER));
pnlNorth.setVisible(true);
pnlSouth.add(lblTitle);
}
}
pnlSouth.setVisible(false);
pnlSouth.setVisible(true);
}
//-------------------END OF ACTION PERFORMED CLASS-------------------------//
/*
----------------------------------
Start of all the other methods. |
----------------------------------
*/
public void showGame() { // Shows the Playing Field
// *IMPORTANT*- Does not start out brand new (meaning just shows what it had before)
clearPanelSouth();
inGame = true;
pnlSouth.setLayout(new BorderLayout());
pnlSouth.add(pnlPlayingField, BorderLayout.CENTER);
pnlPlayingField.requestFocus();
}
public void checkWin() { // checks if there are 3 symbols in a row vertically, diagonally, or horizontally.
// then shows a message and disables buttons.
for(int i=0; i<7; i++) {
if(
!btnEmpty[winCombo[i][0]].getText().equals("") &&
btnEmpty[winCombo[i][0]].getText().equals(btnEmpty[winCombo[i][1]].getText()) &&
// if {1 == 2 && 2 == 3}
btnEmpty[winCombo[i][1]].getText().equals(btnEmpty[winCombo[i][2]].getText())
/*
The way this checks the if someone won is:
First: it checks if the btnEmpty[x] is not equal to an empty string- x being the array number
inside the multi-dementional array winCombo[checks inside each of the 7 sets][the first number]
Secong: it checks if btnEmpty[x] is equal to btnEmpty[y]- x being winCombo[each set][the first number]
y being winCombo[each set the same as x][the second number] (So basically checks if the first and
second number in each set is equal to each other)
Third: it checks if btnEmtpy[y] is eual to btnEmpty[z]- y being the same y as last time and z being
winCombo[each set as y][the third number]
Conclusion: So basically it checks if it is equal to the btnEmpty is equal to each set of numbers
*/
) {
win = true;
wonNumber1 = winCombo[i][0];
wonNumber2 = winCombo[i][1];
wonNumber3 = winCombo[i][2];
btnEmpty[wonNumber1].setBackground(Color.white);
btnEmpty[wonNumber2].setBackground(Color.white);
btnEmpty[wonNumber3].setBackground(Color.white);
break;
}
}
if(win || (!win && turn>9)) {
if(win) {
if(turn % 2 == 0)
message = "X has won!";
else
message = "O has won!";
win = false;
} else if(!win && turn>9) {
message = "Both players have tied! Better luck next time.";
}
JOptionPane.showMessageDialog(null, message);
for(int i=1; i<=9; i++) {
btnEmpty[i].setEnabled(false);
}
}
}
public void clearPanelSouth() { //Removes all the possible panels
//that pnlSouth, pnlTop, pnlBottom
//could have.
pnlSouth.remove(lblTitle);
pnlSouth.remove(pnlTop);
pnlSouth.remov Programming code :
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.io.*;
import java.util.*;
public class TicTacToe implements ActionListener {
final String VERSION = "1.0";
//Setting up ALL the variables
JFrame window = new JFrame("Tic-Tac-Toe " + VERSION);
JMenuBar mnuMain = new JMenuBar();
JMenuItem mnuNewGame = new JMenuItem("New Game"),
mnuInstruction = new JMenuItem("Instructions"),
mnuExit = new JMenuItem("Exit"),
mnuAbout = new JMenuItem("About");
JButton btn1v1 = new JButton("Player vs Player"),
btn1vCPU = new JButton("Player vs CPU"),
btnBack = new JButton("<--back");
JButton btnEmpty[] = new JButton[10];
JPanel pnlNewGame = new JPanel(),
pnlNorth = new JPanel(),
pnlSouth = new JPanel(),
pnlTop = new JPanel(),
pnlBottom = new JPanel(),
pnlPlayingField = new JPanel();
JLabel lblTitle = new JLabel("Tic-Tac-Toe");
JTextArea txtMessage = new JTextArea();
final int winCombo[][] = new int[][] {
{1, 2, 3}, {1, 4, 7}, {1, 5, 9},
{4, 5, 6}, {2, 5, 8}, {3, 5, 7},
{7, 8, 9}, {3, 6, 9}
/*Horizontal Wins*/ /*Vertical Wins*/ /*Diagonal Wins*/
};
final int X = 412, Y = 268, color = 190;
boolean inGame = false;
boolean win = false;
boolean btnEmptyClicked = false;
String message;
int turn = 1;
int wonNumber1 = 1, wonNumber2 = 1, wonNumber3 = 1;
public TicTacToe() { //Setting game properties and layout and sytle...
//Setting window properties:
window.setSize(X, Y);
window.setLocation(450, 260);
window.setResizable(false);
window.setLayout(new BorderLayout());
window.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
//Setting Panel layouts and properties
pnlNewGame.setLayout(new GridLayout(2, 1, 2, 10));
pnlNorth.setLayout(new FlowLayout(FlowLayout.CENTER));
pnlSouth.setLayout(new FlowLayout(FlowLayout.CENTER));
pnlNorth.setBackground(new Color(color-20, color-20, color-20));
pnlSouth.setBackground(new Color(color, color, color));
pnlTop.setBackground(new Color(color, color, color));
pnlBottom.setBackground(new Color(color, color, color));
pnlTop.setLayout(new FlowLayout(FlowLayout.CENTER));
pnlBottom.setLayout(new FlowLayout(FlowLayout.CENTER));
pnlNewGame.setBackground(Color.blue);
//Adding menu items to menu bar
mnuMain.add(mnuNewGame);
mnuMain.add(mnuInstruction);
mnuMain.add(mnuAbout);
mnuMain.add(mnuExit);//---->Menu Bar Complete
//Adding buttons to NewGame panel
pnlNewGame.add(btn1v1);
pnlNewGame.add(btn1vCPU);
//Adding Action Listener to all the Buttons and Menu Items
mnuNewGame.addActionListener(this);
mnuExit.addActionListener(this);
mnuInstruction.addActionListener(this);
mnuAbout.addActionListener(this);
btn1v1.addActionListener(this);
btn1vCPU.addActionListener(this);
btnBack.addActionListener(this);
//Setting up the playing field
pnlPlayingField.setLayout(new GridLayout(3, 3, 2, 2));
pnlPlayingField.setBackground(Color.black);
for(int i=1; i<=9; i++) {
btnEmpty[i] = new JButton();
btnEmpty[i].setBackground(new Color(220, 220, 220));
btnEmpty[i].addActionListener(this);
pnlPlayingField.add(btnEmpty[i]);
}
//Adding everything needed to pnlNorth and pnlSouth
pnlNorth.add(mnuMain);
pnlSouth.add(lblTitle);
//Adding to window and Showing window
window.add(pnlNorth, BorderLayout.NORTH);
window.add(pnlSouth, BorderLayout.CENTER);
window.setVisible(true);
}
//-------------------START OF ACTION PERFORMED CLASS-------------------------//
public void actionPerformed(ActionEvent click) {
Object source = click.getSource();
for(int i=1; i<=9; i++) {
if(source == btnEmpty[i] && turn < 10) {
btnEmptyClicked = true;
if(!(turn % 2 == 0))
btnEmpty[i].setText("X");
else
btnEmpty[i].setText("O");
btnEmpty[i].setEnabled(false);
pnlPlayingField.requestFocus();
turn++;
}
}
if(btnEmptyClicked) {
checkWin();
btnEmptyClicked = false;
}
if(source == mnuNewGame) {
clearPanelSouth();
pnlSouth.setLayout(new GridLayout(2, 1, 2, 5));
pnlTop.add(pnlNewGame);
pnlBottom.add(btnBack);
pnlSouth.add(pnlTop);
pnlSouth.add(pnlBottom);
}
else if(source == btn1v1) {
if(inGame) {
int option = JOptionPane.showConfirmDialog(null, "If you start a new game," +
"your current game will be lost..." + " " +
"Are you sure you want to continue?",
"Quit Game?" ,JOptionPane.YES_NO_OPTION);
if(option == JOptionPane.YES_OPTION) {
inGame = false;
}
}
if(!inGame) {
btnEmpty[wonNumber1].setBackground(new Color(220, 220, 220));
btnEmpty[wonNumber2].setBackground(new Color(220, 220, 220));
btnEmpty[wonNumber3].setBackground(new Color(220, 220, 220));
turn = 1;
for(int i=1; i<10; i++) {
btnEmpty[i].setText("");
btnEmpty[i].setEnabled(true);
}
win = false;
showGame();
}
}
else if(source == btn1vCPU) {
JOptionPane.showMessageDialog(null, "Coming Soon!!");
}
else if(source == mnuExit) {
int option = JOptionPane.showConfirmDialog(null, "Are you sure you want to exit?",
"Exit Game" ,JOptionPane.YES_NO_OPTION);
if(option == JOptionPane.YES_OPTION)
System.exit(0);
}
else if(source == mnuInstruction || source == mnuAbout) {
clearPanelSouth();
String message = "";
txtMessage.setBackground(new Color(color, color, color));
if(source == mnuInstruction) {
message = "Instructions: " +
"Your goal is to be the first player to get 3 X's or O's in a " +
"row. (horizontally, diagonally, or vertically)";
} else {
message = "About: " +
"Title: Tic-Tac-Toe " +
"Author: Blmaster " +
"Version: " + VERSION + " ";
}
txtMessage.setEditable(false);
txtMessage.setText(message);
pnlSouth.setLayout(new GridLayout(2, 1, 2, 5));
pnlTop.add(txtMessage);
pnlBottom.add(btnBack);
pnlSouth.add(pnlTop);
pnlSouth.add(pnlBottom);
}
else if(source == btnBack) {
if(inGame)
showGame();
else {
clearPanelSouth();
pnlSouth.setLayout(new FlowLayout(FlowLayout.CENTER));
pnlNorth.setVisible(true);
pnlSouth.add(lblTitle);
}
}
pnlSouth.setVisible(false);
pnlSouth.setVisible(true);
}
//-------------------END OF ACTION PERFORMED CLASS-------------------------//
/*
----------------------------------
Start of all the other methods. |
----------------------------------
*/
public void showGame() { // Shows the Playing Field
// *IMPORTANT*- Does not start out brand new (meaning just shows what it had before)
clearPanelSouth();
inGame = true;
pnlSouth.setLayout(new BorderLayout());
pnlSouth.add(pnlPlayingField, BorderLayout.CENTER);
pnlPlayingField.requestFocus();
}
public void checkWin() { // checks if there are 3 symbols in a row vertically, diagonally, or horizontally.
// then shows a message and disables buttons.
for(int i=0; i<7; i++) {
if(
!btnEmpty[winCombo[i][0]].getText().equals("") &&
btnEmpty[winCombo[i][0]].getText().equals(btnEmpty[winCombo[i][1]].getText()) &&
// if {1 == 2 && 2 == 3}
btnEmpty[winCombo[i][1]].getText().equals(btnEmpty[winCombo[i][2]].getText())
/*
The way this checks the if someone won is:
First: it checks if the btnEmpty[x] is not equal to an empty string- x being the array number
inside the multi-dementional array winCombo[checks inside each of the 7 sets][the first number]
Secong: it checks if btnEmpty[x] is equal to btnEmpty[y]- x being winCombo[each set][the first number]
y being winCombo[each set the same as x][the second number] (So basically checks if the first and
second number in each set is equal to each other)
Third: it checks if btnEmtpy[y] is eual to btnEmpty[z]- y being the same y as last time and z being
winCombo[each set as y][the third number]
Conclusion: So basically it checks if it is equal to the btnEmpty is equal to each set of numbers
*/
) {
win = true;
wonNumber1 = winCombo[i][0];
wonNumber2 = winCombo[i][1];
wonNumber3 = winCombo[i][2];
btnEmpty[wonNumber1].setBackground(Color.white);
btnEmpty[wonNumber2].setBackground(Color.white);
btnEmpty[wonNumber3].setBackground(Color.white);
break;
}
}
if(win || (!win && turn>9)) {
if(win) {
if(turn % 2 == 0)
message = "X has won!";
else
message = "O has won!";
win = false;
} else if(!win && turn>9) {
message = "Both players have tied! Better luck next time.";
}
JOptionPane.showMessageDialog(null, message);
for(int i=1; i<=9; i++) {
btnEmpty[i].setEnabled(false);
}
}
}
public void clearPanelSouth() { //Removes all the possible panels
//that pnlSouth, pnlTop, pnlBottom
//could have.
pnlSouth.remove(lblTitle);
pnlSouth.remove(pnlTop);
pnlSouth.remove(pnlBottom);
pnlSouth.remove(pnlPlayingField);
pnlTop.remove(pnlNewGame);
pnlTop.remove(txtMessage);
pnlBottom.remove(btnBack);
}
public static void main(String[] args) {
new TicTacToe();// Calling the class construtor.
}
}
e(pnlBottom);
pnlSouth.remove(pnlPlayingField);
pnlTop.remove(pnlNewGame);
pnlTop.remove(txtMessage);
pnlBottom.remove(btnBack);
}
public static void main(String[] args) {
new TicTacToe();// Calling the class construtor.
}
}
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