TIC TAC TOE GAME.ipynb

{
 "cells": [
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "   |   |\n",
      " X | X | O\n",
      "   |   |\n",
      "-----------\n",
      "   |   |\n",
      " O | X | X\n",
      "   |   |\n",
      "-----------\n",
      "   |   |\n",
      " X | O | O\n",
      "   |   |\n",
      "The game is a DRAW!\n"
     ]
    }
   ],
   "source": [
    "from IPython.display import clear_output                                     # prints the display board\n",
    "\n",
    "def display_board(board):\n",
    "    clear_output()                                               # this works in jupyter only!\n",
    "                                                                 # you can use \"print('\\n'*100)\", to scroll up the previous board\n",
    "    print('   |   |')\n",
    "    print(' ' + board[7] + ' | ' + board[8] + ' | ' + board[9])\n",
    "    print('   |   |')\n",
    "    print('-----------')\n",
    "    print('   |   |')\n",
    "    print(' ' + board[4] + ' | ' + board[5] + ' | ' + board[6])\n",
    "    print('   |   |')\n",
    "    print('-----------')\n",
    "    print('   |   |')\n",
    "    print(' ' + board[1] + ' | ' + board[2] + ' | ' + board[3])\n",
    "    print('   |   |')\n",
    "\n",
    "    \n",
    "def select_marker_input():                                      # To select the marker\n",
    "    marker = ''\n",
    "    \n",
    "    while not (marker == 'X' or marker == 'O'):                                       \n",
    "        marker = input('Player 1: Do you want to be X or O? ').upper()\n",
    "\n",
    "    if marker == 'X':\n",
    "        return ('X', 'O')\n",
    "    else:\n",
    "        return ('O', 'X')\n",
    "\n",
    "    \n",
    "def place_marker(board, marker, position):                               # places the marker at the desired position\n",
    "    board[position] = marker\n",
    "\n",
    "    \n",
    "def win_check(board,mark):                                                   # returns True if there is win, else False\n",
    "    \n",
    "    return ((board[7] == mark and board[8] == mark and board[9] == mark) or    # across the top\n",
    "    (board[4] == mark and board[5] == mark and board[6] == mark) or            # across the middle\n",
    "    (board[1] == mark and board[2] == mark and board[3] == mark) or            # across the bottom\n",
    "    (board[7] == mark and board[4] == mark and board[1] == mark) or            # down the left side\n",
    "    (board[8] == mark and board[5] == mark and board[2] == mark) or            # down the middle\n",
    "    (board[9] == mark and board[6] == mark and board[3] == mark) or            # down the right side\n",
    "    (board[7] == mark and board[5] == mark and board[3] == mark) or            # leading diagonal\n",
    "    (board[9] == mark and board[5] == mark and board[1] == mark))              # trailing diagonal\n",
    "\n",
    "\n",
    "import random\n",
    "\n",
    "def choose_first():                                                       # random selection of first chance\n",
    "    if random.randint(0, 1) == 0:\n",
    "        return 'Player 2'\n",
    "    else:\n",
    "        return 'Player 1'\n",
    "    \n",
    "def space_check(board, position):                                          # checks for the availablity of slots on the board\n",
    "    \n",
    "    return board[position] == ' '\n",
    "\n",
    "\n",
    "def full_board_check(board):                                           # returns True when board becomes full, else False\n",
    "    for i in range(1,10):\n",
    "        if space_check(board, i):\n",
    "            return False\n",
    "    return True\n",
    "\n",
    "\n",
    "def player_choice(board):                                            # player makes a choice for palcing the marker\n",
    "    position = 0\n",
    "    \n",
    "    while position not in [1,2,3,4,5,6,7,8,9] or not space_check(board, position):\n",
    "        \n",
    "            position = int(input('Choose your next position: (1-9) '))        # if the particular slot is unavailble or\n",
    "                                                                              #   invalid input index\n",
    "        \n",
    "        \n",
    "    return position\n",
    "\n",
    "\n",
    "\n",
    "def replay():                                                               # returns True for a new game, else False \n",
    "    \n",
    "    return input('Do you want to play again? Enter Yes or No: ').lower().startswith('y')\n",
    "\n",
    "        # Finally  a while loop to combine the above functions \n",
    "\n",
    "print('Welcome to Tic Tac Toe!')\n",
    "\n",
    "while True:\n",
    "                                                                                        # Reset the board\n",
    "    theBoard = [' '] * 10\n",
    "    player1 , player2 = select_marker_input()\n",
    "    turn = choose_first()\n",
    "    print(turn + ' gets to go first.')\n",
    "    \n",
    "    game = input('Are you ready to play? Enter Yes or No.')\n",
    "    \n",
    "    if game.lower()[0] == 'y':\n",
    "        game_on = True\n",
    "    else:\n",
    "        game_on = False\n",
    "\n",
    "    while game_on:\n",
    "        if turn == 'Player 1':\n",
    "                                                                                           # Player1's turn.\n",
    "            \n",
    "            display_board(theBoard)\n",
    "            position = player_choice(theBoard)\n",
    "            place_marker(theBoard, player1 , position)\n",
    "\n",
    "            if win_check(theBoard, player1):\n",
    "                display_board(theBoard)\n",
    "                print('WELL DONE Player1! You have won the game!')\n",
    "                game_on = False\n",
    "            else:\n",
    "                if full_board_check(theBoard):\n",
    "                    display_board(theBoard)\n",
    "                    print('The game is a DRAW!')\n",
    "                    break\n",
    "                else:\n",
    "                    turn = 'Player 2'\n",
    "\n",
    "        else:\n",
    "                                                                                # Player2's turn.\n",
    "            \n",
    "            display_board(theBoard)\n",
    "            position = player_choice(theBoard)\n",
    "            place_marker(theBoard, player2, position)\n",
    "\n",
    "            if win_check(theBoard, player2):\n",
    "                display_board(theBoard)\n",
    "                print('CONGRATULATIONS Player 2!. You\\'ve won!')\n",
    "                game_on = False\n",
    "            else:\n",
    "                if full_board_check(theBoard):\n",
    "                    display_board(theBoard)\n",
    "                    print('The game is a DRAW!')\n",
    "                    break\n",
    "                else:\n",
    "                    turn = 'Player 1'\n",
    "\n",
    "    if not replay():\n",
    "        break"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": []
  }
 ],
 "metadata": {
  "kernelspec": {
   "display_name": "Python 3",
   "language": "python",
   "name": "python3"
  },
  "language_info": {
   "codemirror_mode": {
    "name": "ipython",
    "version": 3
   },
   "file_extension": ".py",
   "mimetype": "text/x-python",
   "name": "python",
   "nbconvert_exporter": "python",
   "pygments_lexer": "ipython3",
   "version": "3.6.4"
  }
 },
 "nbformat": 4,
 "nbformat_minor": 2
}