Tic tac toe

From Computer Science Wiki
This a problem set for you to work through [1]

This is a problem set. Some of these are easy, others are far more difficult. The purpose of these problems sets are:

  1. to build your skill applying computational thinking to a problem
  2. to assess your knowledge and skills of different programming practices


What is this problem set trying to do[edit]

This problem set is testing your computational thinking, your skill and understanding of lists, and your skill and understanding of loops

The Problem[edit]

Your program must do three things:

  1. it must allow a human to play against a computer a game of tic tac toe
    1. your program must have win and lose conditions
  2. it must draw a tic tac to board, updated with x's and O's as the computer and human play.
  3. It must follow the rules of tic tac toe


Hacker edition[edit]

In the hacker version:

  • Your program should be good at playing tic tac toe

Python Version[edit]

import random

# initialization stuff here: 

board = [1,2,3,4,5,6,7,8,9]
computerSpaces = []
humanSpaces =[1]
game = 0

def drawPieces(position):
    if position in humanSpaces:
        return "X"
    elif position in computerSpaces:
        return "O"
    else:
        return position   



# this function draws the board
def drawBoard():
    print("")
    print("")
    print(" ",drawPieces(1),"  |   (2)    | (3) ")
    print("     |          |     ")
    print("----------------------")
    print(" (4) |   (5)    | (6) ")
    print("     |          |     ")
    print("----------------------")
    print(" (7) |   (8)    | (9) ")
    print("     |          |     ")
    
    return

# this function manages player moves
def playerMove(move):
    return

# this function manages computer moves
def computerMove(computerMove):
    return

while True:
    print(drawBoard())
    move=input("Please choose a move (99 to quit): ")
    if move == "99":
        break
    elif str(move) in computerSpaces or str(move) in humanSpaces:
        print("this is a invalid move")
    else:
        humanSpaces.append(move)
        print(humanSpaces)
   # playerMove(move)

Javascript Version[edit]

File:Javascript tictactoe.zip


How you will be assessed[edit]

Your solution will be graded using the following axis:


Scope

  • To what extent does your code implement the features required by our specification?
  • To what extent is there evidence of effort?

Correctness

  • To what extent did your code meet specifications?
  • To what extent did your code meet unit tests?
  • To what extent is your code free of bugs?

Design

  • To what extent is your code written well (i.e. clearly, efficiently, elegantly, and/or logically)?
  • To what extent is your code eliminating repetition?
  • To what extent is your code using functions appropriately?

Style

  • To what extent is your code readable?
  • To what extent is your code commented?
  • To what extent are your variables well named?
  • To what extent do you adhere to style guide?

References[edit]

A possible solution[edit]

Click the expand link to see one possible solution in Python, but NOT before you have tried and failed!

import os, random, time

#setting
table = ["\033[1;30m1\033[0m","\033[1;30m2\033[0m","\033[1;30m3\033[0m","\033[1;30m4\033[0m","\033[1;30m5\033[0m","\033[1;30m6\033[0m","\033[1;30m7\033[0m","\033[1;30m8\033[0m","\033[1;30m9\033[0m"]
# table1 = ["\033[1;30m1\033[0m","\033[1;30m2\033[0m","\033[1;30m3\033[0m","\033[1;30m4\033[0m","\033[1;30m5\033[0m","\033[1;30m6\033[0m","\033[1;30m7\033[0m","\033[1;30m8\033[0m","\033[1;30m9\033[0m"]
ending = False
def drawing():
    os.system('clear')
    print(f"{table[0]}   {table[1]}   {table[2]}")
    print(f"\n{table[3]}   {table[4]}   {table[5]}")
    print(f"\n{table[6]}   {table[7]}   {table[8]}")

#event loop
while True:
    drawing()
    a=0
    b=0

#win or lose or draw
    # if any(table1) in table:
    #     print("You draw!")
    #     ending = True
    if table[0] == table[4] == table[8]:
        if table[0] == 'O':
            print("You Win!")
            ending = True
        else:
            print("You Lose!")
            ending = True
    elif table[2] == table[4] == table[6]:
        if table[2] == 'O':
            print("You Win!")
            ending = True
        else:
            print("You Lose!")
            ending = True
    for i in range(3):
        if table[a] == table[a+1] == table[a+2]:
            if table[a] == 'O':
                print("You Win!")
                ending = True
            else:
                print("You Lose!")
                ending = True
        elif table[b] == table[b+3] == table[b+6]:
            if table[b] == 'O':
                print("You Win!")
                ending = True
            else:
                print("You Lose!")
                ending = True
        a += 3
        b += 1

    if ending == True:
        break    

#user's turn
    user_move = int(input("\nplace number: "))
    if table[user_move-1] != 'O' and table[user_move-1] != 'X':
        table[user_move-1] = 'O'
    else:
        input("that's not proper place...")
        continue
    drawing()



#computer's turn
    while True:
        a=0
        b=0
## simple UI logic
        # if table[4] == 'X' or 'O':
        #     if table[4] == table[0] or table[4] == table[8]:
        #         if table[0] == 'O' or 'X':
        #             table[8] = 'X'
        #             break
        #         elif table[8] == 'O' or 'X':
        #             table[0] = 'X'
        #             break 
        #     elif table[4] == table[2] or table[4] == table[6]:
        #         if table[2] == 'O' or 'X':
        #             table[6] == 'X'
        #             break
        #         elif table[6] == 'O' or 'X':
        #             table[2] == 'X'
        #             break
        #     else:
        #         pass
        
        # for i in range(3):
        #     if table[a] == table[a+1] or table[a+1] == table[a+2] and table[a+1] == 'X' or 'O':
        #         if table[a] == 'O' or 'X':
        #             table[a] = 'X'
        #             logic_loop = False
        #         if table[a+2] == 'O' or 'X':
        #             table[a+2] = 'X'
        #             break
        #     elif table[b] == table[b+3] or table[b+3] == table[b+6] and table[b+3] == 'X' or 'O':
        #         if table[b] == 'O' or 'X':
        #             table[b] = 'X'
        #             break
        #         if table[b+6] == 'O' or 'X':
        #             table[b+6] = 'X'
        #             break
        #     else: 
        #         pass
        #     a += 3
        #     b += 1
    
        com_move = random.randrange(1,10)
        if table[com_move-1] != 'O' and table[com_move-1] != 'X':
            table[com_move-1] = 'X'
            break
        else:
            continue

    time.sleep(0.7)






# ============================ second example below ====================
import random

# initialization stuff here: 

board = [1,2,3,4,5,6,7,8,9]
computerSpaces = []
humanSpaces =[]
game = 0

# this function draws pieces on the board. 
def drawPieces(position):
    if position in humanSpaces:
        return "X"
    elif position in computerSpaces:
        return "O"
    else:
        return position   


# this function manages player moves
def playerMove(move):
    humanSpaces.append(move)
    humanSpaces.sort()
    board.remove(int(move))
    return

# this function manages computer moves
def computerMove():
    # we choose a possible move from any moves left in the list board
    move=random.choice(board)
    # we append the move we just made into a list
    computerSpaces.append(str(move))
    # we sort the list because our win conditions are in a certain order. 1,2,3 is a win, but 3,2,1 isn't. 
    # sorting is a bit of a hack (there might be a better way to test for membership in a list iregardless of order)
    computerSpaces.sort()
    # finally, we remove the place from our list keeping track of the places. 
    board.remove(move)
    return

# this function draws the board
def drawBoard():
    print("")
    print("")
    print(" ",drawPieces('1'),"  |   ",drawPieces('2'),"    | ",drawPieces('3'), "  ")
    print("      |          |     ")
    print("----------------------")
    print(" ",drawPieces('4'),"  |   ",drawPieces('5'),"    | ",drawPieces('6'), "  ")
    print("      |          |     ")
    print("----------------------")
    print(" ",drawPieces('7'),"  |   ",drawPieces('8'),"    | ",drawPieces('9'), "  ")
    print("      |          |     ")
    return

# this functions looks for win win conditions
def winConditions():
    winConditions = [['1','2','3'],['4','5','6'],['7','8','9'],['1','5','9'],['3','5','7'],['1','4','7'],['2','5','8'],['3','6','9']]
    if any(humanSpaces) in winConditions:
        print("human won")
        raise SystemExit
    elif any(computerSpaces) in winConditions:
        print("commputer won")
        raise SystemExit
    return


# main game loop
while True:
    print(board)
    print(drawBoard())
    move=input("Please choose a move (99 to quit): ")
    if move == "99":
        break
    elif str(move) in computerSpaces or str(move) in humanSpaces:
        print("this is a invalid move")
    else:
        playerMove(move)
        computerMove()
        winConditions()
        print(humanSpaces)
        print(computerSpaces)
        # playerMove(move)


Click the expand link to see one possible solution in Javascript, but NOT before you have tried and failed!