Android Open Source - TicTacToe2P_Android Tic Tac Toe Model

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Back to project page TicTacToe2P_Android.

License

The source code is released under:

GNU General Public License

Java Source Code

package com.acharya.tictactoe;
/*from www. j  a  v a 2s  . c o  m*/
public class TicTacToeModel {
  public enum Piece {X, O, _ };
  private final int GRID_WIDTH = 3;
  private final int GRID_HEIGHT = 3;
  
  private Piece[][] board = new Piece[GRID_WIDTH][GRID_HEIGHT];
  private Piece currentPlayer = Piece.X;
  
  public TicTacToeModel() {
    reset();
  }
  
  public void reset() {
    for(int i=0; i< GRID_WIDTH; i++)
      for(int j = 0; j < GRID_HEIGHT; j++)
        board[i][j] = Piece._;
  }
  
  private void togglePlayer() {
    if(currentPlayer == Piece.X)
      currentPlayer = Piece.O;
    else
      currentPlayer = Piece.X;
  }
  
  public Piece getCurrentPlayer() {
    return currentPlayer;
  }
  
  public void setValue(int row, int col, Piece p) {
    board[row][col] = p;
    togglePlayer();
  }
  
  public Piece getValue(int row, int col) {
    return board[row][col];
  }
  
  public Piece checkWinner() {
    Piece winner = Piece._;
    
    // Check for Rows that win
    for(int i=0; i<GRID_HEIGHT; i++)
      if(winner == Piece._ && board[i][0] == board[i][1] && board[i][1] == board[i][2])
        winner = board[i][0];
    
//    System.out.println("1" + winner);
    
    // Check for Columns that win
    for(int i=0; i<GRID_WIDTH; i++)
      if(winner == Piece._ && board[0][i] == board[1][i] && board[1][i] == board[2][i])
        winner = board[0][i]; 
    
//    System.out.println("2" + winner);
    
    // Check for cross that wins
    if(winner == Piece._ && board[0][0] == board[1][1] && board[1][1] == board[2][2])
      winner = board[0][0];
    
//    System.out.println("3" + winner);
    
    if(winner == Piece._ && board[0][2] == board[1][1] && board[1][1] == board[2][0])
      winner = board[0][2]; 
    
//    System.out.println("4" + winner);
    
    return winner;
  
  }
}

Java Source Code List

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