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4 Replies Latest reply: Apr 5, 2013 7:12 AM by rukbat RSS

Java help

1001309 Newbie
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Currently creating a noughts on crosses game can anyone help with the following
1. How to fix the code so the player wins when he gets 3 in a row
2. First need to provide persistent scores (a total of games won, drawn and lost for each player) and i dont no how.

import java.awt.*; //
import java.awt.event.*; //
import javax.swing.*; //
import java.io.*; //

@SuppressWarnings("serial") // Checks for errors
public class TTTGraphics2P extends JFrame { // Name of class so the game can be created


     
// Grid Layout
public static final int ROWS = 4;
public static final int COLS = 4;


// Constants for creating the board
public static final int CELL_SIZE = 50; // cell width and height (square)
public static final int CANVAS_WIDTH = CELL_SIZE * COLS; // Allows the canvas to be drawn
public static final int CANVAS_HEIGHT = CELL_SIZE * ROWS;
public static final int GRID_WIDTH = 6;
public static final int GRID_WIDHT_HALF = GRID_WIDTH / 1;
// Grid line's width

public static final int CELL_PADDING = CELL_SIZE / 4; // Size of the padding the bigger the number bigger the O or X
public static final int SYMBOL_SIZE = CELL_SIZE - CELL_PADDING * 2; // cell width/height
public static final int SYMBOL_STROKE_WIDTH = 3; // width of the O and X


public enum GameState {
PLAYING, DRAW, CROSS_WON, NOUGHT_WON
// Represents the value of which player won / lost
}
private GameState currentState; // the current game state

// Use an enum to represent the seeds and cell contents
public enum Seed {
EMPTY, CROSS, NOUGHT
}
private Seed currentPlayer; // current player 1 or 2

private Seed[][] board ; // Game board created
private DrawCanvas canvas; // Drawing canvas for the game board
private JLabel statusBar; // Status Bar

/** Constructor to setup the game and the GUI components */
public TTTGraphics2P() {
canvas = new DrawCanvas(); // Construct a drawing canvas (a JPanel)
canvas.setPreferredSize(new Dimension(CANVAS_WIDTH, CANVAS_HEIGHT));

// Code used to create a mouse click so they can place a O or X in the square
canvas.addMouseListener(new MouseAdapter() {
@Override
public void mouseClicked(MouseEvent e) { 
int mouseX = e.getX();
int mouseY = e.getY();

int rowSelected = mouseY / CELL_SIZE;
int colSelected = mouseX / CELL_SIZE;
// Code above shows the row / colum selected


if (currentState == GameState.PLAYING) {
if (rowSelected >= 0 && rowSelected < ROWS && colSelected >= 0
&& colSelected < COLS && board[rowSelected][colSelected] == Seed.EMPTY) {
board[rowSelected][colSelected] = currentPlayer; // Allows a move to be made
updateGame(currentPlayer, rowSelected, colSelected); // update state

currentPlayer = (currentPlayer == Seed.CROSS) ? Seed.NOUGHT : Seed.CROSS; // Code allows the player to switch and have there go
}
} else {       // game over
initGame(); // restarts the game
}
// Refresh the canvas back to default
repaint();
}
});


statusBar = new JLabel(" ");
statusBar.setFont(new Font(Font.DIALOG_INPUT, Font.BOLD, 15));
statusBar.setBorder(BorderFactory.createEmptyBorder(2, 5, 4, 5));
// Message bar after the games finished

Container cp = getContentPane();
cp.setLayout(new BorderLayout());
cp.add(canvas, BorderLayout.CENTER);
cp.add(statusBar, BorderLayout.PAGE_END);

setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
pack(); // pack all the components in this JFrame
setTitle("Tic Tac Toe");
setVisible(true); // show this JFrame

board = new Seed[ROWS][COLS]; // sets up the rows / colums
initGame(); // initialize the game board contents and game variables
}

/** Initialize the game-board contents and the status */
public void initGame() {
for (int row = 0; row < ROWS; row++) {
for (int col = 0; col < COLS; col++) {
board[row][col] = Seed.EMPTY; // Constructer should assign an empty board to all zeros
}
}
currentState = GameState.PLAYING; // Game is up and ready to begin
currentPlayer = Seed.NOUGHT; // Change this part of the coding to dedicate which player goes first
}

// Updates the current board check for win / draw
public void updateGame(Seed theSeed, int rowSelected, int colSelected) {
if (hasWon(theSeed, rowSelected, colSelected)) {
currentState = (theSeed == Seed.CROSS) ? GameState.CROSS_WON : GameState.NOUGHT_WON;
} else if (isDraw()) { 
currentState = GameState.DRAW;
}
// Otherwise, no change to current state boolean false game still playing.
}

// boolean to true the move is a draw
public boolean isDraw() {
for (int row = 0; row < ROWS; row++) {
for (int col = 0; col < COLS; col++) {
if (board[row][col] == Seed.EMPTY) {
return false; // an empty cell found, not draw, exit
}
}
}
return true; // no more empty cell, it's a draw
}

/** Return true if the player with "theSeed" has won after placing at
(rowSelected, colSelected) */ //boolean represented
public boolean hasWon(Seed theSeed, int rowSelected, int colSelected) {
return (board[rowSelected][0] == theSeed // 4 in the row
&& board[rowSelected][1] == theSeed
&& board[rowSelected][2] == theSeed
&& board[rowSelected][3] == theSeed

|| board[0][colSelected] == theSeed // 4 in the column
&& board[1][colSelected] == theSeed
&& board[2][colSelected] == theSeed
&& board[3][colSelected] == theSeed


|| rowSelected == colSelected // 4 diagonal
&& board[0][0] == theSeed
&& board[1][1] == theSeed
&& board[2][2] == theSeed
&& board[3][3] == theSeed


|| rowSelected + colSelected == 2 // 4 in the other diagonal
&& board[0][2] == theSeed
&& board[1][1] == theSeed
&& board[2][0] == theSeed)
&& board[3][0] == theSeed;
}


class DrawCanvas extends JPanel {
@Override
public void paintComponent(Graphics g) {  // invoke via repaint()
super.paintComponent(g); // fill background
setBackground(Color.WHITE); // set its background color

// Draw the grid-lines
g.setColor(Color.LIGHT_GRAY);
for (int row = 1; row < ROWS; row++) {
g.fillRoundRect(0, CELL_SIZE * row - GRID_WIDHT_HALF,
CANVAS_WIDTH-1, GRID_WIDTH, GRID_WIDTH, GRID_WIDTH);
}
for (int col = 1; col < COLS; col++) {
g.fillRoundRect(CELL_SIZE * col - GRID_WIDHT_HALF, 0,
GRID_WIDTH, CANVAS_HEIGHT-1, GRID_WIDTH, GRID_WIDTH);
}

// Draw the Seeds of all the cells if they are not empty
// Use Graphics2D which allows us to set the pen's stroke
Graphics2D g2d = (Graphics2D)g;
g2d.setStroke(new BasicStroke(SYMBOL_STROKE_WIDTH, BasicStroke.CAP_ROUND,
BasicStroke.JOIN_ROUND)); // Graphics2D only
for (int row = 0; row < ROWS; row++) {
for (int col = 0; col < COLS; col++) {
int x1 = col * CELL_SIZE + CELL_PADDING;
int y1 = row * CELL_SIZE + CELL_PADDING;
if (board[row][col] == Seed.CROSS) {
g2d.setColor(Color.RED);
int x2 = (col + 1) * CELL_SIZE - CELL_PADDING;
int y2 = (row + 1) * CELL_SIZE - CELL_PADDING;
g2d.drawLine(x1, y1, x2, y2);
g2d.drawLine(x2, y1, x1, y2);
} else if (board[row][col] == Seed.NOUGHT) {
g2d.setColor(Color.BLUE);
g2d.drawOval(x1, y1, SYMBOL_SIZE, SYMBOL_SIZE);
}
}
}


System.out.println(" 1 2 3");
System.out.println("A" + board[0][0] + "|" + board[0][1] + "|" + board[0][2]);
System.out.println("-----");
System.out.println("B" + board[1][0] + "|" + board[1][1] + "|" + board[1][2]);
System.out.println("-----");
System.out.println("C" + board[2][0] + "|" + board[2][1] + "|" + board[2][2]);


if (currentState == GameState.PLAYING) {
statusBar.setForeground(Color.BLACK);
if (currentPlayer == Seed.CROSS) {
statusBar.setText("X's Turn");
} else {
statusBar.setText("O's Turn");
}
} else if (currentState == GameState.DRAW) {
statusBar.setForeground(Color.RED);
statusBar.setText("It's a Draw! Click to play again.");
} else if (currentState == GameState.CROSS_WON) {
statusBar.setForeground(Color.RED);
statusBar.setText("'X' Won! Click to play again.");
} else if (currentState == GameState.NOUGHT_WON) {
statusBar.setForeground(Color.RED);
statusBar.setText("'O' Won! Click to play again.");
// Prints the message of whos turn / won / play again
}
}
}

// Allows files to be read
     public static void main(String[] args) {
          try {
          FileWriter out = new FileWriter("lpt1");
          out.write("Hello world");
          out.write(0x0D); // CR
          out.close();
          }
          catch (IOException e) {
          e.printStackTrace();
          }
          
          
SwingUtilities.invokeLater(new Runnable() {
@Override
public void run() {
new TTTGraphics2P(); // Let the constructor do the job
}
});
}
}

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