Example 1: how to code a tic tac toe game with ai python
board = [' ' for x in range(10)]
def insertLetter(letter, pos):
board[pos] = letter
def spaceIsFree(pos):
return board[pos] == ' '
def printBoard(board):
print(' | |')
print(' ' + board[1] + ' | ' + board[2] + ' | ' + board[3])
print(' | |')
print('-----------')
print(' | |')
print(' ' + board[4] + ' | ' + board[5] + ' | ' + board[6])
print(' | |')
print('-----------')
print(' | |')
print(' ' + board[7] + ' | ' + board[8] + ' | ' + board[9])
print(' | |')
def isWinner(bo, le):
return (bo[7] == le and bo[8] == le and bo[9] == le) or (bo[4] == le and bo[5] == le and bo[6] == le) or(bo[1] == le and bo[2] == le and bo[3] == le) or(bo[1] == le and bo[4] == le and bo[7] == le) or(bo[2] == le and bo[5] == le and bo[8] == le) or(bo[3] == le and bo[6] == le and bo[9] == le) or(bo[1] == le and bo[5] == le and bo[9] == le) or(bo[3] == le and bo[5] == le and bo[7] == le)
def playerMove():
run = True
while run:
move = input('Please select a position to place an \'X\' (1-9): ')
try:
move = int(move)
if move > 0 and move < 10:
if spaceIsFree(move):
run = False
insertLetter('X', move)
else:
print('Sorry, this space is occupied!')
else:
print('Please type a number within the range!')
except:
print('Please type a number!')
def compMove():
possibleMoves = [x for x, letter in enumerate(board) if letter == ' ' and x != 0]
move = 0
for let in ['O', 'X']:
for i in possibleMoves:
boardCopy = board[:]
boardCopy[i] = let
if isWinner(boardCopy, let):
move = i
return move
cornersOpen = []
for i in possibleMoves:
if i in [1,3,7,9]:
cornersOpen.append(i)
if len(cornersOpen) > 0:
move = selectRandom(cornersOpen)
return move
if 5 in possibleMoves:
move = 5
return move
edgesOpen = []
for i in possibleMoves:
if i in [2,4,6,8]:
edgesOpen.append(i)
if len(edgesOpen) > 0:
move = selectRandom(edgesOpen)
return move
def selectRandom(li):
import random
ln = len(li)
r = random.randrange(0,ln)
return li[r]
def isBoardFull(board):
if board.count(' ') > 1:
return False
else:
return True
def main():
print('Welcome to Tic Tac Toe!')
printBoard(board)
while not(isBoardFull(board)):
if not(isWinner(board, 'O')):
playerMove()
printBoard(board)
else:
print('Sorry, O\'s won this time!')
break
if not(isWinner(board, 'X')):
move = compMove()
if move == 0:
print('Tie Game!')
else:
insertLetter('O', move)
print('Computer placed an \'O\' in position', move , ':')
printBoard(board)
else:
print('X\'s won this time! Good Job!')
break
if isBoardFull(board):
print('Tie Game!')
while True:
answer = input('Do you want to play again? (Y/N)')
if answer.lower() == 'y' or answer.lower == 'yes':
board = [' ' for x in range(10)]
print('-----------------------------------')
main()
else:
break
Example 2: tic tac toe python
def slant_check(matrix,P1,P2):
empty_lst1 = []
empty_lst2= []
lst1 = []
lst2 = []
x = len(matrix)
v = len(matrix) - 1
t = 0
g = 0
n = True
while n:
for i in range(x):
if matrix[i][i] == P1 or matrix[t][i] == P1:
empty_lst1.append(matrix[i][i])
if matrix[i][i] == P2 or matrix[t][i] == P2:
empty_lst2.append(matrix[i][i])
while v >= g:
if matrix[g][v] == P1:
lst1.append(matrix[g][v])
if matrix[g][v] == P2:
lst2.append(matrix[g][v])
t -= 1
v -= 1
g += 1
if len(empty_lst1) == x:
return True
if len(empty_lst2) == x:
return True
if len(lst1) == x:
return True
if len(lst2) == x:
return True
return False
def vertical_check(lst,P1,P2):
for i in range(len(lst) - 2):
for j in range(len(lst)):
if lst[i][j] == P1 and lst[i + 1][j] == P1 and lst[i + 2][j] == P1:
return True
if lst[i][j] == P2 and lst[i + 1][j] == P2 and lst[i + 2][j] == P2:
return True
return False
def horizontal_check(lst,P1,P2):
for i in range(len(lst)):
for j in range(len(lst) - 2):
if lst[i][j]== P1 and lst[i][j + 1]== P1 and lst[i][j + 2]== P1 :
return True
if lst[i][j]== P2 and lst[i][j + 1]== P2 and lst[i][j + 2]== P2 :
return True
return False
def find_grid2(place,lst):
for i in range(len(lst)):
for j in range(len(lst[i])):
if place == lst[i][j]:
return lst.index(lst[i])
def find_grid1(place,lst):
for i in range(len(lst)):
for j in range(len(lst[i])):
if place == lst[i][j]:
return lst[i].index(place)
def print_lst(lst):
for i in range(len(lst)):
for j in range(len(lst[i]) - 2):
print(lst[i][j],'|', lst[i][j + 1],'|', lst[i][j + 2])
print('----------')
def tic_tac_toe():
lst = [[1,2,3],
[4,5,6],
[7,8,9]]
P1 = 0
P2 = 0
counter_loop = 0
_ = 0
new_lst = [1,2]
while True:
P1 = input('Player1 select "x" or "o" ? (Type in x or o):\n').lower()
if P1 == 'x':
print('Player2 is now "o"!\n')
P2 = 'o'
break
if P1 == 'o':
print('Player2 is now "x"!\n')
P2 = 'x'
break
else:
print('Try Again\n')
print_lst(lst)
while _ < len(lst):
for i in range(len(lst[_])):
if counter_loop == 9:
print("Tie!")
break
place_grid1 = input('Where would Player 1 like to place? : ')
if int(place_grid1) >= 10 or int(place_grid1) <= 0:
print('Try Again')
place_grid1 = input('Where would Player 1 like to place? : ')
break
place_grid = int(place_grid1)
counter_loop += 1
inner_index1 = find_grid1(place_grid,lst)
outer_index1 = find_grid2(place_grid,lst)
lst[outer_index1][inner_index1] = P1
print_lst(lst)
if horizontal_check(lst,P1,P2) == True:
print("Player 1 wins!!")
counter_loop = 9
break
if vertical_check(lst,P1,P2) == True:
print("Player 1 wins!!")
counter_loop = 9
break
if slant_check(lst,P1,P2) == True:
print("Player 1 wins!!")
counter_loop = 9
break
if counter_loop == 9:
print("Tie!")
break
place_grid2 = input('Where would Player 2 like to place? : ')
if int(place_grid2) >= 10 or int(place_grid2) <=0:
print('Try Again')
place_grid2 = input('Where would Player 2 like to place? : ')
break
place_gridy = int(place_grid2)
counter_loop += 1
inner_index2 = find_grid1(place_gridy,lst)
outer_index2 = find_grid2(place_gridy,lst)
lst[outer_index2][inner_index2] = P2
print_lst(lst)
if horizontal_check(lst,P1,P2) == True:
print("Player 2 wins!!")
counter_loop = 9
break
if vertical_check(lst,P1,P2) == True:
print("Player 2 wins!!")
counter_loop = 9
break
if slant_check(lst,P1,P2) == True:
print("Player 2 wins!!")
counter_loop = 9
break
if counter_loop == 9:
print("Tie!")
break
if counter_loop == 9:
break
_ += 1
tic_tac_toe()