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Ultimate Tic Tac Toe

A pygame implementation of the ultimate tic tac toe.

Ultimate Tic Tac Toe or the extended tic tac toe is an extension of the standard 3x3 tic tac toe which is composed of nine tic-tac-toe boards arranged in a 3-by-3 grid.

Playing the game

  • For windows - Simply, download the game exe file from github releases. The exe can be run independently in windows.
  • For Linux systems - Checkout the Dev section to see how to run the project.

About the current implementation

By default the game plays in smart level and single player mode against computer. To change modes see the src/config.py

  • In terms of game difficulty, two levels have been implemented.
    • Easy Level. The first player to win a maximum tiles.
    • Smart Leve. The first player to win 3 tiles in a row wins.
  • In terms of number of players, there's two modes.
    • Single player mode. Here the user plays against the computer.
    • Two player mode. Here two users play against each other.

Game Controls

  • use ESC key to close the application
  • use ctrl + N at any time to start a new game
  • use mouse to play the game

Rules of the ultimate tic tac toe

  • Each small 3-by-3 tic-tac-toe board is referred to as a local board, and the larger 3-by-3 board is referred to as the global board.
  • The game starts with X playing wherever they want in any of the 81 empty spots. This move 'sends' their opponent to its relative location. For example, if X played in the top right square of their local board, then O needs to play next in the local board at the top right of the global board. O can then play in any one of the nine available spots in that local board, each move sending X to a different local board.
  • If a move is played so that it is to win a local board by the rules of normal tic-tac-toe, then the entire local board is marked as a victory for the player in the global board.
  • Once a local board is won by a player or it is filled completely, no more moves may be played in that board. If a player is sent to such a board, then that player may play in any other board.
  • Game play ends when either a player wins the global board or there are no legal moves remaining, in which case the game is a draw

Dev

Running the project

  • Make sure you have python 3.6+
  • Install pipenv and get familiar
  • Clone/download this repo
  • Run pipenv shell in project root, then pipenv install
  • This will setup all the required dependencies in a virtual env in python
  • go to src folder.
  • see the src/config.py. change levels, modes as required
  • Run python tic_tac_toe.py

Packaging

  • We'll use this wonderful pyinstaller wrapper app auto-py-to-exe. Follow the instructions and make this app working in your local machine
  • once you get the app started
  • browse location for script tic_tac_toe.py in src folder
  • choose single file and Window Based Mode
  • provide a ico file if you wish
  • In additional files, add folder, and browse to the assets folder
  • Add this folder and your entry path tic_tac_toe.py
  • In advanced options, choose output directory and provide any location
  • Then simply press convert
  • This will create a single exe file which can be run independently
  • Try and run and test the exe, if something went wrong, debug using FAQs from the app repo
  • The initial release has been made and added to github releases.

code development

  • The code was written in 2017 and is messy
  • Formatting was done using pep8
  • Tasks were written down to further extend the project.
  • Have a look at the developer doc to know about tasks in detail.

Game Loop

Performing a single move

  • We'll see what goes into a single move
  • While TRUE :
    • user wants to quit if eascape key comes up or window is closed
    • if mouse is clicked (mouse button just came up)
      • set mouse pointer coordinates = current pixel locations
    • else
      • coordinates = None
    • if coordinate is not None
      • obtain the exact local board number (row, column, box_r, box_c ) at that pixel coordinate
    • if this local board has already been won OR already marked/tied
      • set current local board variable = None
    • if inside a valid local board ( exact box,coordinates is not None)
      • ready to make a move -> X or O ( either player or computer)
      • make X/O move, then make entry in Data Structure
      • sound Beep1/Beep2 as per move
  • You have now performed one move

Getting ready for next move

  • set expected row/Column for next move based on the move that just happened
  • As soon a move is done, we have to do some steps to be ready for next move.
  • De-highlight all the boxes (1 in most move/ many in free move case aka "any case")
  • check who won the current box with this move
  • if won/tie
    • make entry in win records
    • put in winner tuples
    • also hold Winner
  • if someone won
    • increment the winner player's score
    • pygame.time.wait(500) for a delay efect
    • then highlightWin by drawing a line over won tuples
    • also play the BEEP3
  • if expected row/Column is already won (Recheck global records)
    • set expected = "any"
  • Now highlight all the expected boxes (1 or "any")
  • Board got changed because of this, Screen needs update, perform pygame.display.update()
  • 3 major functions
    • highlightWin draws a gaint line in a local board
    • highlight glows up a local board
    • dehighlight takes away the glow of a local board box
  • once highlighted or dehighlighted, all its members need to be redrawn as well- In our case, everything needs to be redrawn, because we keep updating highlighted boxes and stuff.